From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853768106965.7496956450509; Tue, 13 Feb 2024 11:49:28 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyeV-0002I0-GU; Tue, 13 Feb 2024 14:41:11 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyeT-0002Gk-Hz for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:09 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyeR-0006DT-9j for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:09 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZydg-0008m4-4B; Tue, 13 Feb 2024 19:40:24 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=iLYkZARu1vtJ3SiTWVKioF4o+HiVbNwnzi4KqCUj564=; b=X69PTqMcK+VXusg/nzA854DFNG QBD1Alir6pgA8McyDqQNgm0G/SUbHidnB+BnhjOcYLkeU1jgiGGwUNelvAAyvJXlHVHyMZuC4T3dr 7h9pOhk7VYjQ7fLoXJNCWmXOxUnAf7fJnsDbfygJp6LBLJ4Q32htLxD7ZEs3+z69QFPWhvMqRJd13 865WirEPTM4BIL5loarpMikPAZbZfIkpiH7MsqFey605P+LLXgRhYGNDj+OZ2UMn5QLYVyxUMw5tn aufIQ06edGJkQExWI2uN/C2xzK95sf6HWNxyvcWz5nvwO9kFMIDGF7eghehIM9YRHBuHWqIzrzND4 Cn1yk4T6Eqw2Ys95gHd8J6BBiE0pnQCxkberb2jN2DCnkzj9sfqTpqxYWlYOydzuFPd2UkJn+toF7 kAwc7IUC1ImVmbK1vIEtNft4E9EKUnl5b2xibQ9jxZchCmjmF4gMlcQdDGSclQOOEfVyp9rGbT+H1 Kq44r0NxqTDyTR7oA8kOf/q385y2NhARhkgI8fAnk53ui1mg0ffZPw+/gXg3GSmigZE35dbCUTrCW pq4azE9Ft6alGi18smocHP6zhoBDnJDZF5S/6kX0czhrFoVqlZwDCOITcGorw/iUffZG1VGklbEdK SemqkqqaovBOjljSXDGGUEdTJtCDtaQMuTsw5lSlI=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:25 +0000 Message-Id: <20240213194052.1162753-2-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 01/88] esp.c: don't clear cmdfifo when esp_select() fails in get_cmd() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853768413100003 Content-Type: text/plain; charset="utf-8" The FIFO contents should not be affected if the target selection fails. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-2-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 3a1c9f7c3b..68d07edc05 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -252,11 +252,9 @@ static uint32_t get_cmd(ESPState *s, uint32_t maxlen) fifo8_push_all(&s->cmdfifo, buf, dmalen); } else { if (esp_select(s) < 0) { - fifo8_reset(&s->cmdfifo); return -1; } esp_raise_drq(s); - fifo8_reset(&s->cmdfifo); return 0; } } else { @@ -271,7 +269,6 @@ static uint32_t get_cmd(ESPState *s, uint32_t maxlen) trace_esp_get_cmd(dmalen, target); =20 if (esp_select(s) < 0) { - fifo8_reset(&s->cmdfifo); return -1; } return dmalen; --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:26 +0000 Message-Id: <20240213194052.1162753-3-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 02/88] esp.c: move existing request cancel check into esp_select() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853362950100006 Content-Type: text/plain; charset="utf-8" Since get_cmd() can be called multiple times during a mixed FIFO/DMA reques= t, move the existing request cancel check into esp_select() which always occurs at the start of new SCSI request. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-3-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 68d07edc05..b382865426 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -209,6 +209,11 @@ static int esp_select(ESPState *s) s->ti_size =3D 0; fifo8_reset(&s->fifo); =20 + if (s->current_req) { + /* Started a new command before the old one finished. Cancel it. */ + scsi_req_cancel(s->current_req); + } + s->current_dev =3D scsi_device_find(&s->bus, 0, target, 0); if (!s->current_dev) { /* No such drive */ @@ -235,11 +240,6 @@ static uint32_t get_cmd(ESPState *s, uint32_t maxlen) uint32_t dmalen, n; int target; =20 - if (s->current_req) { - /* Started a new command before the old one finished. Cancel it. = */ - scsi_req_cancel(s->current_req); - } - target =3D s->wregs[ESP_WBUSID] & BUSID_DID; if (s->dma) { dmalen =3D MIN(esp_get_tc(s), maxlen); --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853337172545.8189736440261; Tue, 13 Feb 2024 11:42:17 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyeZ-0002MM-N7; Tue, 13 Feb 2024 14:41:15 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyeY-0002In-C5 for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:14 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyeX-0006Ew-0q for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:14 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZydo-0008m4-AL; Tue, 13 Feb 2024 19:40:32 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=4jW7lXLEbxFgTtylTDdvoHs79P2KJ++hoi/n37K19Ho=; b=GiSgqyWP0EVzcXKKt4GOR7VVat 0Z5DS/gYc2PS0PnzTBae7PMUayxVr1pZBJrJPCl8jFG92yfdeduN6bbNzKiH4oOV6BdDI27uZhh1Z D452QUn9AhqHNzUMFGVc3/InSU7M1Uy+qWtH/5+h1wqhgmB/wOMYsgz8FyOV19aCHKqGw2LENFFVw CFhHMLd4tgY/EU+8hqQCienKsIseo7zXosnYoHk5viYAmnXZGPtfFIsvhKfDG3BpW9wOESB4LZQ++ vR9CBWxzbcRXHdG3txiFbjlIFUdZ1vQ0JA+f6fqWp0iZSg/Dg6tdz9VKlQKqnF/EOoGO5kYSiAotH /jaIgMD5bxwD88TS3p5kxRDIB52usd3sTBg2dhxmnyAqKCZgEVek+ouf/wuN9gXXQaZgiC5CFle1h LRxCACutKwxciuGIRSWJLfcAqXgYij0tWnJiLJO1OOonizOYbBJk3joIhAS7fD706rldWPgj5HrpY 4USFTPcc0je2/nQ3AGVFmwdt22Im1xORWS5XnF13v44ptEgtBBfXhiAzsRaZayvAYWJJZf0XuxzvU zajUZunpplKvPj5DcF5S2ftIsR4HOfAa4m2YSPd8zcgxf3HC2gdMaKExQnQc1zsQcVUxj4Euk4m44 T/fz6qnA1IfZzXJd+K7yxmpR3eJjVdbUUqt+sTfbU=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:27 +0000 Message-Id: <20240213194052.1162753-4-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 03/88] esp.c: add FIFO wraparound support to esp_fifo_pop_buf() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853338920100005 Content-Type: text/plain; charset="utf-8" The fifo8_pop_buf() function returns a pointer to the FIFO buffer up to the specified length. Since the FIFO buffer is modelled as an array then once the FIFO wraps around, only the continuous portion of the buffer can be returned. In future the use of continuous and unaligned accesses will advance the internal FIFO head pointer, so modify esp_fifo_pop_buf() to ensure that any wraparound content is also returned up to the requested length. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-4-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index b382865426..8d8f6a817a 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -121,17 +121,30 @@ static uint8_t esp_fifo_pop(Fifo8 *fifo) static uint32_t esp_fifo_pop_buf(Fifo8 *fifo, uint8_t *dest, int maxlen) { const uint8_t *buf; - uint32_t n; + uint32_t n, n2; + int len; =20 if (maxlen =3D=3D 0) { return 0; } =20 - buf =3D fifo8_pop_buf(fifo, maxlen, &n); + len =3D maxlen; + buf =3D fifo8_pop_buf(fifo, len, &n); if (dest) { memcpy(dest, buf, n); } =20 + /* Add FIFO wraparound if needed */ + len -=3D n; + len =3D MIN(len, fifo8_num_used(fifo)); + if (len) { + buf =3D fifo8_pop_buf(fifo, len, &n2); + if (dest) { + memcpy(&dest[n], buf, n2); + } + n +=3D n2; + } + return n; } =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:28 +0000 Message-Id: <20240213194052.1162753-5-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 04/88] esp.c: remove FIFO clear from esp_select() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853495244100004 Content-Type: text/plain; charset="utf-8" The FIFO contents should not be affected by performing SCSI target selectio= n. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-5-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 1 - 1 file changed, 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 8d8f6a817a..89fce05e58 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -220,7 +220,6 @@ static int esp_select(ESPState *s) target =3D s->wregs[ESP_WBUSID] & BUSID_DID; =20 s->ti_size =3D 0; - fifo8_reset(&s->fifo); =20 if (s->current_req) { /* Started a new command before the old one finished. Cancel it. */ --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853720225116.98866085365785; Tue, 13 Feb 2024 11:48:40 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyei-0002R4-BX; Tue, 13 Feb 2024 14:41:24 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyeg-0002Qh-LH for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:22 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyef-0006Fj-7d for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:22 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZydw-0008m4-GY; Tue, 13 Feb 2024 19:40:40 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=MVDMmvJTqOzEPP0u0xre999nw8BU0NcMg9uxPxgcwTs=; b=HODkoB9MMC79g23+Apc7B3wJEP OcEpUQYGXOw2EjMt/Uk0bXeAQRIbj0XgO3C+UAleveOquUi90O6gq32Nt7FubtUSPxdfSi9KujINY aEj4NrQoFoXEhbPTvdT7d600JrT9uf+Vfv8AkeRgLDGWeEpXRiUaTecTbiGuAFGJCWkxi1nXxNutJ 4Wfn3wXG6Q6gnT1aQ4jT4qBN0fBhFy8jrtp/P7D+kAjIS6Ezgen+Lzi+Pj10/283oma1ttKG79k38 4dCfOEUGOKu+tdtbagbCnZ7e3sJSIA6qM/7uoO/c8Vj5cyeNUrTAGJKLAZqNSKmDI05PP1ALe4jn1 Kcgtph+Fma9bpiRxbk46Ex1SZGP0rgmp1Re5MLzDzVrq6FigRxWSMUMScNMPoQBjNQ0HI97H6Rh9v qgSVDp/nkwQTollLmXu370v8DUJ3Dd1jGwtQEgddNkmEjwlptKaP7uuc//gseW8Ww9/FC6wDs7Ca7 YaOZzR5Ppadp10iOyhadwnxH80Y8T4UWmDCpFwdssekInSHoIodKsveXAEWjcLZoQBvcboTFi+M/K agny72NQknczsuzIC9k7UqvEYKWftQHFNwD9yID9/ykLQ0AsX3qdTPqgn2ssL6rH8gH0BXikSPSh1 SdQQ+2I2IImrzUYQAmJKxEa+afRd1QgFvniY3Xpw8=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:29 +0000 Message-Id: <20240213194052.1162753-6-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 05/88] esp.c: move esp_select() to ESP selection commands from get_cmd() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853722261100004 Content-Type: text/plain; charset="utf-8" Since the DREQ value depends upon the result of the selection process, add a workaround to each esp_select() to manually assert DREQ durring the MESSAGE= OUT and COMMAND phases. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-6-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 89fce05e58..8c1c6bfc1c 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -263,10 +263,6 @@ static uint32_t get_cmd(ESPState *s, uint32_t maxlen) dmalen =3D MIN(fifo8_num_free(&s->cmdfifo), dmalen); fifo8_push_all(&s->cmdfifo, buf, dmalen); } else { - if (esp_select(s) < 0) { - return -1; - } - esp_raise_drq(s); return 0; } } else { @@ -280,9 +276,6 @@ static uint32_t get_cmd(ESPState *s, uint32_t maxlen) } trace_esp_get_cmd(dmalen, target); =20 - if (esp_select(s) < 0) { - return -1; - } return dmalen; } =20 @@ -380,12 +373,18 @@ static void handle_satn(ESPState *s) return; } esp_set_pdma_cb(s, SATN_PDMA_CB); + if (esp_select(s) < 0) { + return; + } cmdlen =3D get_cmd(s, ESP_CMDFIFO_SZ); if (cmdlen > 0) { s->cmdfifo_cdb_offset =3D 1; s->do_cmd =3D 0; do_cmd(s); } else if (cmdlen =3D=3D 0) { + if (s->dma) { + esp_raise_drq(s); + } s->do_cmd =3D 1; /* Target present, but no cmd yet - switch to command phase */ s->rregs[ESP_RSEQ] =3D SEQ_CD; @@ -411,12 +410,18 @@ static void handle_s_without_atn(ESPState *s) return; } esp_set_pdma_cb(s, S_WITHOUT_SATN_PDMA_CB); + if (esp_select(s) < 0) { + return; + } cmdlen =3D get_cmd(s, ESP_CMDFIFO_SZ); if (cmdlen > 0) { s->cmdfifo_cdb_offset =3D 0; s->do_cmd =3D 0; do_cmd(s); } else if (cmdlen =3D=3D 0) { + if (s->dma) { + esp_raise_drq(s); + } s->do_cmd =3D 1; /* Target present, but no cmd yet - switch to command phase */ s->rregs[ESP_RSEQ] =3D SEQ_CD; @@ -446,6 +451,9 @@ static void handle_satn_stop(ESPState *s) return; } esp_set_pdma_cb(s, SATN_STOP_PDMA_CB); + if (esp_select(s) < 0) { + return; + } cmdlen =3D get_cmd(s, 1); if (cmdlen > 0) { trace_esp_handle_satn_stop(fifo8_num_used(&s->cmdfifo)); @@ -456,6 +464,9 @@ static void handle_satn_stop(ESPState *s) s->rregs[ESP_RSEQ] =3D SEQ_MO; esp_raise_irq(s); } else if (cmdlen =3D=3D 0) { + if (s->dma) { + esp_raise_drq(s); + } s->do_cmd =3D 1; /* Target present, switch to message out phase */ s->rregs[ESP_RSEQ] =3D SEQ_MO; --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853360913788.931749674397; Tue, 13 Feb 2024 11:42:40 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyem-0002Wj-9C; Tue, 13 Feb 2024 14:41:28 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyek-0002W4-LO for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:30 +0000 Message-Id: <20240213194052.1162753-7-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 06/88] esp.c: update esp_set_tc() to set STAT_TC flag X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853362945100005 Content-Type: text/plain; charset="utf-8" This flag is set once the transfer counter counts down to zero. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-7-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 8c1c6bfc1c..c7b79a2949 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -161,9 +161,15 @@ static uint32_t esp_get_tc(ESPState *s) =20 static void esp_set_tc(ESPState *s, uint32_t dmalen) { + uint32_t old_tc =3D esp_get_tc(s); + s->rregs[ESP_TCLO] =3D dmalen; s->rregs[ESP_TCMID] =3D dmalen >> 8; s->rregs[ESP_TCHI] =3D dmalen >> 16; + + if (old_tc && dmalen =3D=3D 0) { + s->rregs[ESP_RSTAT] |=3D STAT_TC; + } } =20 static uint32_t esp_get_stc(ESPState *s) --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:31 +0000 Message-Id: <20240213194052.1162753-8-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 07/88] esp.c: start removal of manual STAT_TC setting when transfer counter reaches zero X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853338920100006 Content-Type: text/plain; charset="utf-8" This should be exclusively managed by esp_set_tc() rather than being manual= ly set in multiple places. Start by removing the occurrences exclusive to PDMA and command completion which are those that can be currently removed without affecting any test images. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-8-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index c7b79a2949..e717b2e216 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -611,11 +611,6 @@ static void do_dma_pdma_cb(ESPState *s) s->async_len -=3D len; s->ti_size -=3D len; esp_set_tc(s, esp_get_tc(s) - len); - - if (esp_get_tc(s) =3D=3D 0) { - /* Indicate transfer to FIFO is complete */ - s->rregs[ESP_RSTAT] |=3D STAT_TC; - } return; } =20 @@ -720,9 +715,6 @@ static void esp_do_dma(ESPState *s) esp_set_tc(s, esp_get_tc(s) - len); esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); - - /* Indicate transfer to FIFO is complete */ - s->rregs[ESP_RSTAT] |=3D STAT_TC; return; } } @@ -870,7 +862,8 @@ void esp_command_complete(SCSIRequest *req, size_t resi= d) * transfers from the target the last byte is still in the FIFO */ if (s->ti_size =3D=3D 0) { - s->rregs[ESP_RSTAT] =3D STAT_TC | STAT_ST; + s->rregs[ESP_RSTAT] &=3D ~7; + s->rregs[ESP_RSTAT] |=3D STAT_ST; esp_dma_done(s); esp_lower_drq(s); } --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 17078533553831014.2099445253594; Tue, 13 Feb 2024 11:42:35 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyer-0002aK-U1; Tue, 13 Feb 2024 14:41:33 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyep-0002Y7-Qd for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:31 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyen-0006Gi-Sz for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:32 +0000 Message-Id: <20240213194052.1162753-9-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 08/88] esp.c: move command execution logic to new esp_run_cmd() function X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853356951100003 Content-Type: text/plain; charset="utf-8" This helps to simplify esp_reg_write() and potentially allows for a 2-level deep FIFO to be implemented in future. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-9-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 177 ++++++++++++++++++++++++++------------------------ 1 file changed, 92 insertions(+), 85 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index e717b2e216..fecfef7c89 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -980,6 +980,97 @@ static void parent_esp_reset(ESPState *s, int irq, int= level) } } =20 +static void esp_run_cmd(ESPState *s) +{ + uint8_t cmd =3D s->rregs[ESP_CMD]; + + if (cmd & CMD_DMA) { + s->dma =3D 1; + /* Reload DMA counter. */ + if (esp_get_stc(s) =3D=3D 0) { + esp_set_tc(s, 0x10000); + } else { + esp_set_tc(s, esp_get_stc(s)); + } + } else { + s->dma =3D 0; + } + switch (cmd & CMD_CMD) { + case CMD_NOP: + trace_esp_mem_writeb_cmd_nop(cmd); + break; + case CMD_FLUSH: + trace_esp_mem_writeb_cmd_flush(cmd); + fifo8_reset(&s->fifo); + break; + case CMD_RESET: + trace_esp_mem_writeb_cmd_reset(cmd); + esp_soft_reset(s); + break; + case CMD_BUSRESET: + trace_esp_mem_writeb_cmd_bus_reset(cmd); + esp_bus_reset(s); + if (!(s->wregs[ESP_CFG1] & CFG1_RESREPT)) { + s->rregs[ESP_RINTR] |=3D INTR_RST; + esp_raise_irq(s); + } + break; + case CMD_TI: + trace_esp_mem_writeb_cmd_ti(cmd); + handle_ti(s); + break; + case CMD_ICCS: + trace_esp_mem_writeb_cmd_iccs(cmd); + write_response(s); + s->rregs[ESP_RINTR] |=3D INTR_FC; + s->rregs[ESP_RSTAT] |=3D STAT_MI; + break; + case CMD_MSGACC: + trace_esp_mem_writeb_cmd_msgacc(cmd); + s->rregs[ESP_RINTR] |=3D INTR_DC; + s->rregs[ESP_RSEQ] =3D 0; + s->rregs[ESP_RFLAGS] =3D 0; + esp_raise_irq(s); + break; + case CMD_PAD: + trace_esp_mem_writeb_cmd_pad(cmd); + s->rregs[ESP_RSTAT] =3D STAT_TC; + s->rregs[ESP_RINTR] |=3D INTR_FC; + s->rregs[ESP_RSEQ] =3D 0; + break; + case CMD_SATN: + trace_esp_mem_writeb_cmd_satn(cmd); + break; + case CMD_RSTATN: + trace_esp_mem_writeb_cmd_rstatn(cmd); + break; + case CMD_SEL: + trace_esp_mem_writeb_cmd_sel(cmd); + handle_s_without_atn(s); + break; + case CMD_SELATN: + trace_esp_mem_writeb_cmd_selatn(cmd); + handle_satn(s); + break; + case CMD_SELATNS: + trace_esp_mem_writeb_cmd_selatns(cmd); + handle_satn_stop(s); + break; + case CMD_ENSEL: + trace_esp_mem_writeb_cmd_ensel(cmd); + s->rregs[ESP_RINTR] =3D 0; + break; + case CMD_DISSEL: + trace_esp_mem_writeb_cmd_dissel(cmd); + s->rregs[ESP_RINTR] =3D 0; + esp_raise_irq(s); + break; + default: + trace_esp_error_unhandled_command(cmd); + break; + } +} + uint64_t esp_reg_read(ESPState *s, uint32_t saddr) { uint32_t val; @@ -1076,91 +1167,7 @@ void esp_reg_write(ESPState *s, uint32_t saddr, uint= 64_t val) break; case ESP_CMD: s->rregs[saddr] =3D val; - if (val & CMD_DMA) { - s->dma =3D 1; - /* Reload DMA counter. */ - if (esp_get_stc(s) =3D=3D 0) { - esp_set_tc(s, 0x10000); - } else { - esp_set_tc(s, esp_get_stc(s)); - } - } else { - s->dma =3D 0; - } - switch (val & CMD_CMD) { - case CMD_NOP: - trace_esp_mem_writeb_cmd_nop(val); - break; - case CMD_FLUSH: - trace_esp_mem_writeb_cmd_flush(val); - fifo8_reset(&s->fifo); - break; - case CMD_RESET: - trace_esp_mem_writeb_cmd_reset(val); - esp_soft_reset(s); - break; - case CMD_BUSRESET: - trace_esp_mem_writeb_cmd_bus_reset(val); - esp_bus_reset(s); - if (!(s->wregs[ESP_CFG1] & CFG1_RESREPT)) { - s->rregs[ESP_RINTR] |=3D INTR_RST; - esp_raise_irq(s); - } - break; - case CMD_TI: - trace_esp_mem_writeb_cmd_ti(val); - handle_ti(s); - break; - case CMD_ICCS: - trace_esp_mem_writeb_cmd_iccs(val); - write_response(s); - s->rregs[ESP_RINTR] |=3D INTR_FC; - s->rregs[ESP_RSTAT] |=3D STAT_MI; - break; - case CMD_MSGACC: - trace_esp_mem_writeb_cmd_msgacc(val); - s->rregs[ESP_RINTR] |=3D INTR_DC; - s->rregs[ESP_RSEQ] =3D 0; - s->rregs[ESP_RFLAGS] =3D 0; - esp_raise_irq(s); - break; - case CMD_PAD: - trace_esp_mem_writeb_cmd_pad(val); - s->rregs[ESP_RSTAT] =3D STAT_TC; - s->rregs[ESP_RINTR] |=3D INTR_FC; - s->rregs[ESP_RSEQ] =3D 0; - break; - case CMD_SATN: - trace_esp_mem_writeb_cmd_satn(val); - break; - case CMD_RSTATN: - trace_esp_mem_writeb_cmd_rstatn(val); - break; - case CMD_SEL: - trace_esp_mem_writeb_cmd_sel(val); - handle_s_without_atn(s); - break; - case CMD_SELATN: - trace_esp_mem_writeb_cmd_selatn(val); - handle_satn(s); - break; - case CMD_SELATNS: - trace_esp_mem_writeb_cmd_selatns(val); - handle_satn_stop(s); - break; - case CMD_ENSEL: - trace_esp_mem_writeb_cmd_ensel(val); - s->rregs[ESP_RINTR] =3D 0; - break; - case CMD_DISSEL: - trace_esp_mem_writeb_cmd_dissel(val); - s->rregs[ESP_RINTR] =3D 0; - esp_raise_irq(s); - break; - default: - trace_esp_error_unhandled_command(val); - break; - } + esp_run_cmd(s); break; case ESP_WBUSID ... ESP_WSYNO: break; --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853432774824.8671998554333; Tue, 13 Feb 2024 11:43:52 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyev-0002it-S3; Tue, 13 Feb 2024 14:41:37 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyeu-0002il-DA for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:36 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyet-0006HD-0M for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:36 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZye9-0008m4-A7; Tue, 13 Feb 2024 19:40:53 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=nO+ngFbqX34GmWdyHyDwlZOuxb9VSNiPAp1CSju1IoQ=; b=q9DpdXp/mMLAWYx0xdvmZzNgvD i7batKoXDJRflAre8sbl22d3uh5nJGCPA8iNdy5vZ2km1DVFq+AyxoXsYcWDCEbag6oZ5/EZ8N7ew IM/yCm4MK6e92kbpGdBKE7ZVWpDXQF7RQ+63x7+YQwAi5KAxzcKKgtuN8Mj0uxam86hmtdbZU5Syv Lca+w6+ICmpL8/6oEwBPHGahAnIerujdqF6Bs2sZextadspa0v2IQ7nnoYE19heUAgchrY0KmpQ94 y3qEUGZ+zN7yUJcwBpsLCu/orx8W0PvVUaE5B48eJThnCiG1DYDrFf15oK7DtJiebToNuVFr/GgT0 nPY4lRUveulx41kMx6YBRERYayNIzSBhxEqrroOVvfUutrXO+/lZgjhCrIKO7BNDbtfrIfjyZeVWd CNyoGX69rfLkocO3aE/qfC84OV0WfS3KKYS0r7Cj2DkEU6tl9cIl8ImES1ap/+uUUTdAeiUKoq28H zjprvzA+a9uGX1GSktzAENF7N1dDJ76FoeAV6OJG8gz8rH9zGiIfWxWZuqUADKLKh5nUBpkWjbxr2 wYEEbVrwsutEQjHJaw7MQflWkPXCpbGHh8v/ozpXRv9Ops79hfbJ2gNr93EId6wpmeKbza38KdkDq yKaTdB3dI1Eq46rCxEou6uda5XASiXp+JN8s5uvjA=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:33 +0000 Message-Id: <20240213194052.1162753-10-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 09/88] esp.c: update TC check logic in do_dma_pdma_cb() to check for TC == 0 X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853433140100001 Content-Type: text/plain; charset="utf-8" Invert the logic so that the end of DMA transfer check becomes one that che= cks for TC =3D=3D 0 in the from device path in do_dma_pdma_cb(). Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-10-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index fecfef7c89..63c828c1b2 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -602,21 +602,19 @@ static void do_dma_pdma_cb(ESPState *s) return; } =20 - if (esp_get_tc(s) !=3D 0) { - /* Copy device data to FIFO */ - len =3D MIN(s->async_len, esp_get_tc(s)); - len =3D MIN(len, fifo8_num_free(&s->fifo)); - fifo8_push_all(&s->fifo, s->async_buf, len); - s->async_buf +=3D len; - s->async_len -=3D len; - s->ti_size -=3D len; - esp_set_tc(s, esp_get_tc(s) - len); - return; + if (esp_get_tc(s) =3D=3D 0) { + esp_lower_drq(s); + esp_dma_done(s); } =20 - /* Partially filled a scsi buffer. Complete immediately. */ - esp_lower_drq(s); - esp_dma_done(s); + /* Copy device data to FIFO */ + len =3D MIN(s->async_len, esp_get_tc(s)); + len =3D MIN(len, fifo8_num_free(&s->fifo)); + fifo8_push_all(&s->fifo, s->async_buf, len); + s->async_buf +=3D len; + s->async_len -=3D len; + s->ti_size -=3D len; + esp_set_tc(s, esp_get_tc(s) - len); } } =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 170785336391337.38796731487537; Tue, 13 Feb 2024 11:42:43 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyez-0002pW-Gd; Tue, 13 Feb 2024 14:41:41 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyex-0002kz-Kh for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:39 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyew-0006HT-2R for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:39 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZyeD-0008m4-DD; Tue, 13 Feb 2024 19:40:57 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=zqLutRoVYbdRbzEtVwJ/AxxYbcmeOYUsOM5J78wPJM8=; b=zWG3RH1t6YtTs6c3MnYVlOKvmi COHuE0XdW9whOGIRe7wAn1tLN2k6RMazHObNWuYFBPDZdQ+W3DFIx9s4H4alNkK0BoT4vNnXadvCn zRcTp9IP8r5Fh8tjjiakj6ajbfd8iAKqrX08XdM0+NsunVTZjj+Hmw+YWBU3M8+hsTHa/3190Flmx 4VBy9OCa2pxqnJZ4DzN3kG3xkqGsX5aNW2gP9TZb84ajyrZpGPhummNPVmswvdeeX+Doyhm71hpRw TH5fH6d96j8sSaEgN1aQhD2L0AfGJa8yiNhsTpHXxWaToOFUzlmoFVvG1YxeizRDO1ksy4Rh5hiOp DAFX4RA8rWejRKCzaJgqGUqgOtkRBdQMczyY6Q3c2iUfBKhhgvVIdEunfbPznI0CVSczPfcjoOgXd 8h73IpxNpZjPdig5lXP7nbiht9HU7g+K9BRxa/XpakwmIXDJ73zXTxTI08ve8op4ys/zz7whA+R9D wey5XecZQumyEyyauOeXWta5fspIe/GT7OnMlrXqCpv/gScr3fUO5ct42VgDyVpz/EUmOPsWs4Z4S XyEeAS/uUpVvzYJcc22KSywNGJmI5q2hJ1jfnxHcTca11yjWUn8Ko3uCgpHs4ihZm9BE6ZhBYBOpN b9KVpoc0CB//NIhXXtq0w9Rh4kzDVnUPZR0tU3th8=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:34 +0000 Message-Id: <20240213194052.1162753-11-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 10/88] esp.c: move buffer and TC logic into separate to/from device paths in esp_do_dma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853364948100011 Content-Type: text/plain; charset="utf-8" The ultimate aim is to for esp_do_dma() behaviour to be determined by the S= CSI bus phase, in which case it is necessary to have separate to/from device pa= ths. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-11-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 65 +++++++++++++++++++++++++++++++-------------------- 1 file changed, 40 insertions(+), 25 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 63c828c1b2..9893840255 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -678,14 +678,53 @@ static void esp_do_dma(ESPState *s) if (to_device) { if (s->dma_memory_read) { s->dma_memory_read(s->dma_opaque, s->async_buf, len); + + esp_set_tc(s, esp_get_tc(s) - len); + s->async_buf +=3D len; + s->async_len -=3D len; + s->ti_size +=3D len; + + if (s->async_len =3D=3D 0) { + scsi_req_continue(s->current_req); + /* + * If there is still data to be read from the device then + * complete the DMA operation immediately. Otherwise defer + * until the scsi layer has completed. + */ + return; + } + + /* Partially filled a scsi buffer. Complete immediately. */ + esp_dma_done(s); + esp_lower_drq(s); } else { esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); - return; } } else { if (s->dma_memory_write) { s->dma_memory_write(s->dma_opaque, s->async_buf, len); + + esp_set_tc(s, esp_get_tc(s) - len); + s->async_buf +=3D len; + s->async_len -=3D len; + s->ti_size -=3D len; + + if (s->async_len =3D=3D 0) { + scsi_req_continue(s->current_req); + /* + * If there is still data to be read from the device then + * complete the DMA operation immediately. Otherwise defer + * until the scsi layer has completed. + */ + if (esp_get_tc(s) !=3D 0 || s->ti_size =3D=3D 0) { + return; + } + } + + /* Partially filled a scsi buffer. Complete immediately. */ + esp_dma_done(s); + esp_lower_drq(s); } else { /* Adjust TC for any leftover data in the FIFO */ if (!fifo8_is_empty(&s->fifo)) { @@ -713,32 +752,8 @@ static void esp_do_dma(ESPState *s) esp_set_tc(s, esp_get_tc(s) - len); esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); - return; } } - esp_set_tc(s, esp_get_tc(s) - len); - s->async_buf +=3D len; - s->async_len -=3D len; - if (to_device) { - s->ti_size +=3D len; - } else { - s->ti_size -=3D len; - } - if (s->async_len =3D=3D 0) { - scsi_req_continue(s->current_req); - /* - * If there is still data to be read from the device then - * complete the DMA operation immediately. Otherwise defer - * until the scsi layer has completed. - */ - if (to_device || esp_get_tc(s) !=3D 0 || s->ti_size =3D=3D 0) { - return; - } - } - - /* Partially filled a scsi buffer. Complete immediately. */ - esp_dma_done(s); - esp_lower_drq(s); } =20 static void esp_do_nodma(ESPState *s) --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853710401648.20746674246; Tue, 13 Feb 2024 11:48:30 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyf4-0002wX-5e; Tue, 13 Feb 2024 14:41:46 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyf1-0002w3-Ih for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:43 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyf0-0006IE-7a for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:41:43 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZyeH-0008m4-GH; Tue, 13 Feb 2024 19:41:01 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=CQ5UkPsbIeBr8TdR6L3O6LadqjAggrnKeQrTFsf0tRI=; b=wiwFUHptsy0+TxCVcTUcqjO2Og MQnXYzoO/Vqn84UfpSx4Lus8c8P4GWxbKRziFmjOuQcC1YMgZ3tompBin50gLlgsh77BgauFglvuV 1WrcxVkMA4TLwNWI8xhuPRZvVBDvjnWbML4y55ML8ft/6Tr5Gz7t7ydpWqu95lSKKWFtsep7m/QOo gwshx5m2g/rGds3a5D6nCq+3sL834YJbULLHZYzsAW/IcI/Ylz7A9DYBnT2Wn8a2c4c0wsIB2mARk rpahQzThUA4xDieec8rv/Ju9oSkLN5kH4xFJUagVCEi+6lVlUkzaXi0liFw7eMcdBZz1W4QLZukFL ANHs4bs1q4+DuIOfBMsJB6+N4+PFbJ5vVRQm9ZrSRr0XBFNAqg6z/ZdCrwIGJ2UmHCilOGSogYucA ekrYtNicDnI3NyHu0H0+WJWaY8mPKeyuGLG/RILaDhWeoBvrk22lSIuPIyEcqRTviz4BQ4Zq7taZe fMz+hYy91TIBIor9n4sgjnZ5uiG+cwCF4nJEP4gXVFPlhH3FjThzz74pVk1ewBIgLCMrnfDYbVkH3 7bmtR0CDF9jMpCfnBTvTvDgubwwt1GfkRcpav6lSSqv5jFJ48BbyPtI9k2/Ah0pYk5qX/TGGqSRuy tk7+XBQYCLw3ueJArHUyL2TxGIvXFd37/rOZ4xmg8=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:35 +0000 Message-Id: <20240213194052.1162753-12-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 11/88] esp.c: remove unused case from esp_pdma_read() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853712214100001 Content-Type: text/plain; charset="utf-8" The do_cmd variable is only set for the MESSAGE OUT and COMMAND phases i.e. those which involve transfers from the host to the SCSI bus, and so the unu= sed case can be removed. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-12-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 9893840255..6191c17f10 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -187,12 +187,7 @@ static uint8_t esp_pdma_read(ESPState *s) { uint8_t val; =20 - if (s->do_cmd) { - val =3D esp_fifo_pop(&s->cmdfifo); - } else { - val =3D esp_fifo_pop(&s->fifo); - } - + val =3D esp_fifo_pop(&s->fifo); return val; } =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853343204711.6082883649485; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:36 +0000 Message-Id: <20240213194052.1162753-13-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 12/88] esp.c: don't accumulate directly into cmdfifo X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853344966100003 Content-Type: text/plain; charset="utf-8" Instead accumulate in the real FIFO as done in real hardware, and then tran= sfer to cmdfifo when we're ready to process the MESSAGE OUT and COMMAND phase da= ta. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-13-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 49 ++++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 42 insertions(+), 7 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 6191c17f10..9e9bbe8431 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -199,11 +199,7 @@ static void esp_pdma_write(ESPState *s, uint8_t val) return; } =20 - if (s->do_cmd) { - esp_fifo_push(&s->cmdfifo, val); - } else { - esp_fifo_push(&s->fifo, val); - } + esp_fifo_push(&s->fifo, val); =20 dmalen--; esp_set_tc(s, dmalen); @@ -358,6 +354,14 @@ static void do_cmd(ESPState *s) =20 static void satn_pdma_cb(ESPState *s) { + uint8_t buf[ESP_FIFO_SZ]; + int n; + + /* Copy FIFO into cmdfifo */ + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + if (!esp_get_tc(s) && !fifo8_is_empty(&s->cmdfifo)) { s->cmdfifo_cdb_offset =3D 1; s->do_cmd =3D 0; @@ -395,6 +399,14 @@ static void handle_satn(ESPState *s) =20 static void s_without_satn_pdma_cb(ESPState *s) { + uint8_t buf[ESP_FIFO_SZ]; + int n; + + /* Copy FIFO into cmdfifo */ + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + if (!esp_get_tc(s) && !fifo8_is_empty(&s->cmdfifo)) { s->cmdfifo_cdb_offset =3D 0; s->do_cmd =3D 0; @@ -432,6 +444,14 @@ static void handle_s_without_atn(ESPState *s) =20 static void satn_stop_pdma_cb(ESPState *s) { + uint8_t buf[ESP_FIFO_SZ]; + int n; + + /* Copy FIFO into cmdfifo */ + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + if (!esp_get_tc(s) && !fifo8_is_empty(&s->cmdfifo)) { trace_esp_handle_satn_stop(fifo8_num_used(&s->cmdfifo)); s->do_cmd =3D 1; @@ -523,10 +543,16 @@ static void esp_dma_done(ESPState *s) static void do_dma_pdma_cb(ESPState *s) { int to_device =3D ((s->rregs[ESP_RSTAT] & 7) =3D=3D STAT_DO); + uint8_t buf[ESP_CMDFIFO_SZ]; int len; uint32_t n; =20 if (s->do_cmd) { + /* Copy FIFO into cmdfifo */ + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + /* Ensure we have received complete command after SATN and stop */ if (esp_get_tc(s) || fifo8_is_empty(&s->cmdfifo)) { return; @@ -754,10 +780,16 @@ static void esp_do_dma(ESPState *s) static void esp_do_nodma(ESPState *s) { int to_device =3D ((s->rregs[ESP_RSTAT] & 7) =3D=3D STAT_DO); + uint8_t buf[ESP_FIFO_SZ]; uint32_t cmdlen; - int len; + int len, n; =20 if (s->do_cmd) { + /* Copy FIFO into cmdfifo */ + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + cmdlen =3D fifo8_num_used(&s->cmdfifo); trace_esp_handle_ti_cmd(cmdlen); s->ti_size =3D 0; @@ -1159,7 +1191,10 @@ void esp_reg_write(ESPState *s, uint32_t saddr, uint= 64_t val) break; case ESP_FIFO: if (s->do_cmd) { - esp_fifo_push(&s->cmdfifo, val); + if (!fifo8_is_full(&s->fifo)) { + esp_fifo_push(&s->fifo, val); + esp_fifo_push(&s->cmdfifo, fifo8_pop(&s->fifo)); + } =20 /* * If any unexpected message out/command phase data is --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853521476796.7052771401775; Tue, 13 Feb 2024 11:45:21 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyfG-00032f-HD; Tue, 13 Feb 2024 14:41:58 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyfE-00032B-Au for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:37 +0000 Message-Id: <20240213194052.1162753-14-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 13/88] esp.c: decrement the TC during MESSAGE OUT and COMMAND phases X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853523333100003 Content-Type: text/plain; charset="utf-8" This is to ensure that STAT_TC is triggered during the right parts of the transfer when it is controlled exclusively by the TC. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-14-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 9e9bbe8431..f08b816aba 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -259,6 +259,7 @@ static uint32_t get_cmd(ESPState *s, uint32_t maxlen) s->dma_memory_read(s->dma_opaque, buf, dmalen); dmalen =3D MIN(fifo8_num_free(&s->cmdfifo), dmalen); fifo8_push_all(&s->cmdfifo, buf, dmalen); + esp_set_tc(s, esp_get_tc(s) - dmalen); } else { return 0; } @@ -657,6 +658,7 @@ static void esp_do_dma(ESPState *s) len =3D MIN(len, fifo8_num_free(&s->cmdfifo)); s->dma_memory_read(s->dma_opaque, buf, len); fifo8_push_all(&s->cmdfifo, buf, len); + esp_set_tc(s, esp_get_tc(s) - len); } else { esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:38 +0000 Message-Id: <20240213194052.1162753-15-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 14/88] esp.c: introduce esp_set_phase() helper function X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853756369100001 Content-Type: text/plain; charset="utf-8" This function is used to set the current SCSI bus phase in the ESP_RSTAT re= gister without affecting any of flag bits. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-15-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 51 ++++++++++++++++++++++++++++++-------------- hw/scsi/trace-events | 1 + 2 files changed, 36 insertions(+), 16 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index f08b816aba..3fc7417d7c 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -183,6 +183,19 @@ static uint32_t esp_get_stc(ESPState *s) return dmalen; } =20 +static const char *esp_phase_names[8] =3D { + "DATA OUT", "DATA IN", "COMMAND", "STATUS", + "(reserved)", "(reserved)", "MESSAGE OUT", "MESSAGE IN" +}; + +static void esp_set_phase(ESPState *s, uint8_t phase) +{ + s->rregs[ESP_RSTAT] &=3D ~7; + s->rregs[ESP_RSTAT] |=3D phase; + + trace_esp_set_phase(esp_phase_names[phase]); +} + static uint8_t esp_pdma_read(ESPState *s) { uint8_t val; @@ -316,9 +329,9 @@ static void do_command_phase(ESPState *s) * complete before raising the command completion interrupt */ s->data_in_ready =3D false; - s->rregs[ESP_RSTAT] |=3D STAT_DI; + esp_set_phase(s, STAT_DI); } else { - s->rregs[ESP_RSTAT] |=3D STAT_DO; + esp_set_phase(s, STAT_DO); s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; esp_raise_irq(s); esp_lower_drq(s); @@ -394,7 +407,7 @@ static void handle_satn(ESPState *s) s->do_cmd =3D 1; /* Target present, but no cmd yet - switch to command phase */ s->rregs[ESP_RSEQ] =3D SEQ_CD; - s->rregs[ESP_RSTAT] =3D STAT_CD; + esp_set_phase(s, STAT_CD); } } =20 @@ -439,7 +452,7 @@ static void handle_s_without_atn(ESPState *s) s->do_cmd =3D 1; /* Target present, but no cmd yet - switch to command phase */ s->rregs[ESP_RSEQ] =3D SEQ_CD; - s->rregs[ESP_RSTAT] =3D STAT_CD; + esp_set_phase(s, STAT_CD); } } =20 @@ -457,7 +470,8 @@ static void satn_stop_pdma_cb(ESPState *s) trace_esp_handle_satn_stop(fifo8_num_used(&s->cmdfifo)); s->do_cmd =3D 1; s->cmdfifo_cdb_offset =3D 1; - s->rregs[ESP_RSTAT] =3D STAT_TC | STAT_CD; + esp_set_phase(s, STAT_CD); + s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; s->rregs[ESP_RSEQ] =3D SEQ_CD; esp_raise_irq(s); @@ -481,7 +495,7 @@ static void handle_satn_stop(ESPState *s) trace_esp_handle_satn_stop(fifo8_num_used(&s->cmdfifo)); s->do_cmd =3D 1; s->cmdfifo_cdb_offset =3D 1; - s->rregs[ESP_RSTAT] =3D STAT_MO; + esp_set_phase(s, STAT_MO); s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; s->rregs[ESP_RSEQ] =3D SEQ_MO; esp_raise_irq(s); @@ -492,13 +506,14 @@ static void handle_satn_stop(ESPState *s) s->do_cmd =3D 1; /* Target present, switch to message out phase */ s->rregs[ESP_RSEQ] =3D SEQ_MO; - s->rregs[ESP_RSTAT] =3D STAT_MO; + esp_set_phase(s, STAT_MO); } } =20 static void write_response_pdma_cb(ESPState *s) { - s->rregs[ESP_RSTAT] =3D STAT_TC | STAT_ST; + esp_set_phase(s, STAT_ST); + s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; s->rregs[ESP_RSEQ] =3D SEQ_CD; esp_raise_irq(s); @@ -516,7 +531,8 @@ static void write_response(ESPState *s) if (s->dma) { if (s->dma_memory_write) { s->dma_memory_write(s->dma_opaque, buf, 2); - s->rregs[ESP_RSTAT] =3D STAT_TC | STAT_ST; + esp_set_phase(s, STAT_ST); + s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; s->rregs[ESP_RSEQ] =3D SEQ_CD; } else { @@ -575,7 +591,8 @@ static void do_dma_pdma_cb(ESPState *s) * and then switch to command phase */ s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); - s->rregs[ESP_RSTAT] =3D STAT_TC | STAT_CD; + esp_set_phase(s, STAT_CD); + s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RSEQ] =3D SEQ_CD; s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); @@ -681,7 +698,8 @@ static void esp_do_dma(ESPState *s) * and then switch to command phase */ s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); - s->rregs[ESP_RSTAT] =3D STAT_TC | STAT_CD; + esp_set_phase(s, STAT_CD); + s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RSEQ] =3D SEQ_CD; s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); @@ -810,7 +828,8 @@ static void esp_do_nodma(ESPState *s) * and then switch to command phase */ s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); - s->rregs[ESP_RSTAT] =3D STAT_TC | STAT_CD; + esp_set_phase(s, STAT_CD); + s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RSEQ] =3D SEQ_CD; s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); @@ -904,8 +923,7 @@ void esp_command_complete(SCSIRequest *req, size_t resi= d) * transfers from the target the last byte is still in the FIFO */ if (s->ti_size =3D=3D 0) { - s->rregs[ESP_RSTAT] &=3D ~7; - s->rregs[ESP_RSTAT] |=3D STAT_ST; + esp_set_phase(s, STAT_ST); esp_dma_done(s); esp_lower_drq(s); } @@ -1065,7 +1083,7 @@ static void esp_run_cmd(ESPState *s) trace_esp_mem_writeb_cmd_iccs(cmd); write_response(s); s->rregs[ESP_RINTR] |=3D INTR_FC; - s->rregs[ESP_RSTAT] |=3D STAT_MI; + esp_set_phase(s, STAT_MI); break; case CMD_MSGACC: trace_esp_mem_writeb_cmd_msgacc(cmd); @@ -1133,7 +1151,8 @@ uint64_t esp_reg_read(ESPState *s, uint32_t saddr) * The last byte of a non-DMA transfer has been read o= ut * of the FIFO so switch to status phase */ - s->rregs[ESP_RSTAT] =3D STAT_TC | STAT_ST; + esp_set_phase(s, STAT_ST); + s->rregs[ESP_RSTAT] |=3D STAT_TC; } } s->rregs[ESP_FIFO] =3D esp_fifo_pop(&s->fifo); diff --git a/hw/scsi/trace-events b/hw/scsi/trace-events index bdd4e2c7c7..d72f741ed8 100644 --- a/hw/scsi/trace-events +++ b/hw/scsi/trace-events @@ -197,6 +197,7 @@ esp_mem_writeb_cmd_selatns(uint32_t val) "Select with A= TN & stop (0x%2.2x)" esp_mem_writeb_cmd_ensel(uint32_t val) "Enable selection (0x%2.2x)" esp_mem_writeb_cmd_dissel(uint32_t val) "Disable selection (0x%2.2x)" esp_mem_writeb_cmd_ti(uint32_t val) "Transfer Information (0x%2.2x)" +esp_set_phase(const char *phase) "setting bus phase to %s" =20 # esp-pci.c esp_pci_error_invalid_dma_direction(void) "invalid DMA transfer direction" --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853590814580.5205600575136; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:39 +0000 Message-Id: <20240213194052.1162753-16-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 15/88] esp.c: remove another set of manual STAT_TC updates X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853591515100011 Content-Type: text/plain; charset="utf-8" Following on from the recent changes to when the TC is updated, it is now possible to remove another set of manual STAT_TC updates so that its state is now managed within esp_set_tc(). Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-16-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 3fc7417d7c..6fd5c8767a 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -513,7 +513,6 @@ static void handle_satn_stop(ESPState *s) static void write_response_pdma_cb(ESPState *s) { esp_set_phase(s, STAT_ST); - s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; s->rregs[ESP_RSEQ] =3D SEQ_CD; esp_raise_irq(s); @@ -532,7 +531,6 @@ static void write_response(ESPState *s) if (s->dma_memory_write) { s->dma_memory_write(s->dma_opaque, buf, 2); esp_set_phase(s, STAT_ST); - s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; s->rregs[ESP_RSEQ] =3D SEQ_CD; } else { @@ -550,10 +548,8 @@ static void write_response(ESPState *s) =20 static void esp_dma_done(ESPState *s) { - s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RINTR] |=3D INTR_BS; s->rregs[ESP_RFLAGS] =3D 0; - esp_set_tc(s, 0); esp_raise_irq(s); } =20 @@ -592,7 +588,6 @@ static void do_dma_pdma_cb(ESPState *s) */ s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); esp_set_phase(s, STAT_CD); - s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RSEQ] =3D SEQ_CD; s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); @@ -699,7 +694,6 @@ static void esp_do_dma(ESPState *s) */ s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); esp_set_phase(s, STAT_CD); - s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RSEQ] =3D SEQ_CD; s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); @@ -829,7 +823,6 @@ static void esp_do_nodma(ESPState *s) */ s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); esp_set_phase(s, STAT_CD); - s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RSEQ] =3D SEQ_CD; s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); @@ -952,7 +945,6 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) * completion interrupt */ s->data_in_ready =3D true; - s->rregs[ESP_RSTAT] |=3D STAT_TC; s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); } @@ -997,7 +989,6 @@ static void handle_ti(ESPState *s) if (s->dma) { dmalen =3D esp_get_tc(s); trace_esp_handle_ti(dmalen); - s->rregs[ESP_RSTAT] &=3D ~STAT_TC; esp_do_dma(s); } else { trace_esp_handle_ti(s->ti_size); @@ -1152,7 +1143,6 @@ uint64_t esp_reg_read(ESPState *s, uint32_t saddr) * of the FIFO so switch to status phase */ esp_set_phase(s, STAT_ST); - s->rregs[ESP_RSTAT] |=3D STAT_TC; } } s->rregs[ESP_FIFO] =3D esp_fifo_pop(&s->fifo); --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853389429478.970455316017; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:40 +0000 Message-Id: <20240213194052.1162753-17-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 16/88] esp.c: remove MacOS TI workaround that pads FIFO transfers to ESP_FIFO_SZ X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853391001100003 Content-Type: text/plain; charset="utf-8" This workaround is no longer required with the current code and so can be removed. [Note: whilst MacOS itself can boot correctly, removing this hack prevents a bootable EMILE CDROM from working. This is caused by a separate bug which will be fixed by a subsequent patch] Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-17-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 6fd5c8767a..f41b2421f9 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -772,18 +772,6 @@ static void esp_do_dma(ESPState *s) s->async_buf +=3D len; s->async_len -=3D len; s->ti_size -=3D len; - - /* - * MacOS toolbox uses a TI length of 16 bytes for all commands= , so - * commands shorter than this must be padded accordingly - */ - if (len < esp_get_tc(s) && esp_get_tc(s) <=3D ESP_FIFO_SZ) { - while (fifo8_num_used(&s->fifo) < ESP_FIFO_SZ) { - esp_fifo_push(&s->fifo, 0); - len++; - } - } - esp_set_tc(s, esp_get_tc(s) - len); esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:41 +0000 Message-Id: <20240213194052.1162753-18-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 17/88] esp.c: don't reset the TC and ESP_RSEQ state when executing a SCSI command X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853615583100008 Content-Type: text/plain; charset="utf-8" There is no need to manually reset these values as the ESP emulation now correctly handles them within its existing logic. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-18-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index f41b2421f9..a4a1f41a40 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -319,10 +319,7 @@ static void do_command_phase(ESPState *s) s->ti_size =3D datalen; fifo8_reset(&s->cmdfifo); if (datalen !=3D 0) { - s->rregs[ESP_RSTAT] =3D STAT_TC; - s->rregs[ESP_RSEQ] =3D SEQ_CD; s->ti_cmd =3D 0; - esp_set_tc(s, 0); if (datalen > 0) { /* * Switch to DATA IN phase but wait until initial data xfer is --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853414651175.770341561662; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:42 +0000 Message-Id: <20240213194052.1162753-19-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 18/88] esp.c: don't clear RFLAGS register when DMA is complete X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853415051100005 Content-Type: text/plain; charset="utf-8" The internal state of the ESP sequencer is not affected when raising an int= errupt to indicate the end of a DMA transfer. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-19-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 1 - 1 file changed, 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index a4a1f41a40..5b9c3f1e5e 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -546,7 +546,6 @@ static void write_response(ESPState *s) static void esp_dma_done(ESPState *s) { s->rregs[ESP_RINTR] |=3D INTR_BS; - s->rregs[ESP_RFLAGS] =3D 0; esp_raise_irq(s); } =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853715691823.6790922212386; Tue, 13 Feb 2024 11:48:35 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyfn-0004et-NO; Tue, 13 Feb 2024 14:42:31 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyfe-00049W-Oq for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:22 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyfc-0006MP-AB for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:21 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZyej-0008m4-LT; Tue, 13 Feb 2024 19:41:29 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=taIgXtH5PF98j3TWyQtb+SKAB0L35TLaLRp9AOCoESk=; b=WHTNtzyo2hQpxczWDHlPjME1Ks JD7nQ9ZWVh98uPvA2qbkTgpT3s2Z5xe9F9pDfYupPCNTZvA/Pfact8lAn0D6FS/bx21JmAScY/v8g BtGX4CC6XZkwl4mzd8Gbbf4B4KnK3vbGhLgNJiX2Et9rAXL2UhgAfvhFXD3Bo8v5/uOCBrnqL8FWZ xEY5r3Ldyg1a5tC8HRjimM7/D6uv/bH/l1LaoNwhHzIipLSaaHzPb7+ESRDcbC60J6UCWmYmxvLxv 8mLqtPcU7DcB6aFwHjGY+BKfs68COtSlTwiECe3InL9E+eHHEgqBwHMru0DiBziKkTNKo/FO0FEW8 sfFg5k1LlnsY6ElEM/+E5StOZSEvFikwgRf0BGISnTPvinJfljd00MBe8nE4TI4aaDzvuebww2C36 MWfRxlHcMoh+ay0ZSo88G53ULZJH7qQ/neyDO6lJNtqDYFHiE6MTtpyWKwRwq1SCID1gf5RsXDDRY /2XVvk75WNW9MHOp1zIcDAAG230U7X0cLRkA+hkgq75W9Y7Y+wHTmMZ6pabcD5KmB50B8o9BdSnwj RMIz/r6E/78gfrqBpIz31mc+ykh5YDZMnn/U+JJLz2mLIEtJtu1tFUSyrk4CryRc3txWlQMY5yVxs lwIq6bXCbid6hpbEdfFc0laKt1kapHU6lkee/cOrU=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:43 +0000 Message-Id: <20240213194052.1162753-20-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 19/88] esp.c: remove zero transfer size check from esp_do_dma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853716233100001 Content-Type: text/plain; charset="utf-8" The TI end of transfer interrupt only occurs when the TC reaches zero and is not related to the SCSI layer transfer. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-20-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 5b9c3f1e5e..dc515e6435 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -748,7 +748,7 @@ static void esp_do_dma(ESPState *s) * complete the DMA operation immediately. Otherwise defer * until the scsi layer has completed. */ - if (esp_get_tc(s) !=3D 0 || s->ti_size =3D=3D 0) { + if (esp_get_tc(s) !=3D 0) { return; } } --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853587814403.02510826175796; Tue, 13 Feb 2024 11:46:27 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyfp-0004uh-S4; Tue, 13 Feb 2024 14:42:33 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyfn-0004Zt-4y for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:31 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyfi-0006N0-MZ for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:29 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZyen-0008m4-OZ; Tue, 13 Feb 2024 19:41:33 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=BCkhcY2O5ooyqkqZePv9Rcdiugc/548cCTEiXFiu3jE=; b=DHMbTuIQV5m50hHaxljZ7FeTRu TnpnP11nNHqv34VD6fluMkTA7KcS/LGWbsIRMceUi5bZP+qh2HAtqTKrQmN9QtoThKRJrK+PexEOG e2p9Rsf3KkJlPpL0KLoJJQVax3W6SZMTA16U0RwkZVyWkLzLmHQG72jWoOAVCF78s79gssFvLODSL i2j0Dl2Murt9hLuKQYGwgNSPWb/ym9V5HrhUMu3Zj8evg2qop85EqNo6fbvgazJZuo3UI7rrubmWg oOD1Cl/8raBZe4Ly2sDxrwPYh+k7t52oqTcIfNKV3JL9jvF1RvaU26tj7CVJsH2m7RBTDWf31lwpy cb66T4IL7THRXiPEE8DljunsNrOF+rNqoobsmbAx/rcozNKJugwU1pbJYL82gz+4+jDXcWjd0MXZ8 zYdMRfs1aA5b0AP6kTPLAzXOHjh2lumwiliyM72+73FjFSNq/WL92+az7ZTZIy7AhIChh8zdZZfon vdxXkRGnlYZuGwQ8NUaRpJeFZYJyrJ8aSEC10Sr91bNzFED1xpFvY0xdnp91aWeYQHPqQ8PyZKmrt 9Y6PXeK5UUnm+pkg/zL7teHEZ56Fcy7QWC/GI6IVPnkTo4l10V/Kznx/QZ6cXK/YJFZcXCiSW3Dyu j7X1Hi+SJTBVL5Q0wh3+9nuNb691aimhrSRglp3QM=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:44 +0000 Message-Id: <20240213194052.1162753-21-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 20/88] esp.c: update condition for esp_dma_done() in esp_do_dma() from device path X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853589502100006 Content-Type: text/plain; charset="utf-8" No change to the condition itself, other than to clarify that esp_dma_done() must be called when TC is zero. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-21-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index dc515e6435..96723efcf3 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -743,19 +743,13 @@ static void esp_do_dma(ESPState *s) =20 if (s->async_len =3D=3D 0) { scsi_req_continue(s->current_req); - /* - * If there is still data to be read from the device then - * complete the DMA operation immediately. Otherwise defer - * until the scsi layer has completed. - */ - if (esp_get_tc(s) !=3D 0) { - return; - } } =20 - /* Partially filled a scsi buffer. Complete immediately. */ - esp_dma_done(s); - esp_lower_drq(s); + if (esp_get_tc(s) =3D=3D 0) { + /* Partially filled a scsi buffer. Complete immediately. = */ + esp_dma_done(s); + esp_lower_drq(s); + } } else { /* Adjust TC for any leftover data in the FIFO */ if (!fifo8_is_empty(&s->fifo)) { --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853741567347.1079239878122; Tue, 13 Feb 2024 11:49:01 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyfr-000553-BW; Tue, 13 Feb 2024 14:42:35 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyfn-0004a7-72 for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:31 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyfk-0006NT-JF for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:30 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZyer-0008m4-B2; Tue, 13 Feb 2024 19:41:36 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=+iBKlrCd0SeFLixRh0a+X917yw2Et/Lod3SuX2H3jdo=; b=gOr/kM1c+FAdIYf5G2SYvCylP7 b4LoajafxtSZwSUhM3zIFkjsiR5SI2iX5x+a6xWOxd/Ol155NzIP6kXJeFWeMpyWIFyq2Y8aOjWPk WUjTta2+uYbXfq/LWwvlXiclJ8V307szNaNnXY8yXD+VLjVjOK1KML+5jsGp+oAz7OCRDb5BuBEkx kkWsLXVDrCVpMH5YezAnlulXi0Dcg59pzUADxRX3nAZ2na5Y+5ARGf8odoQO5x2pprDLRC06B9b2K muA8TqrNogqWgWiLtaosM1kgxLt/Ht/N103dOos8ANl0qX9QMx9zeQ/OvfBkkmP5NargHexae7Ypg 1srV6LI+j09VHzOZ0+PhGYf4DmG7WDpI8gVAM7NWfdrbU/RkDLut82k+w16JCn8/davFAPQFntnlW J647n3f6oAvQn/BKWzV98oiOFddLiqUIGDmvyWdPX4F1cQJtlFZDSQKsxDKJ3UO8VV5kyjJUb3vzZ 18GCbo0QOvCATwYjk25PTaYHPn2lIOHaQP36wYYoRcnsKfld3f2yU1IfrJo9zQL3djc3Vfb9VmEn1 O0hCfshL8e9B4aBnVPebwkfuDYTnSMk3uBiy+qvpLGjO9875a4T59QMgSwgvm1UEZzcv3/xQRU0Td k8Rsmh9IiEavZHse5x5fJokYo6myoItK5lZzEOzEY=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:45 +0000 Message-Id: <20240213194052.1162753-22-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 21/88] esp.c: update condition for esp_dma_done() in esp_do_dma() to device path X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853742322100003 Content-Type: text/plain; charset="utf-8" Ensure that esp_dma_done() is only called when TC is zero, which is current= ly always the case for DMA transfers. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-22-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 96723efcf3..06be9f2e74 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -725,9 +725,11 @@ static void esp_do_dma(ESPState *s) return; } =20 - /* Partially filled a scsi buffer. Complete immediately. */ - esp_dma_done(s); - esp_lower_drq(s); + if (esp_get_tc(s) =3D=3D 0) { + /* Partially filled a scsi buffer. Complete immediately. = */ + esp_dma_done(s); + esp_lower_drq(s); + } } else { esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853575170518.0687984568822; Tue, 13 Feb 2024 11:46:15 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyfs-00058C-8t; Tue, 13 Feb 2024 14:42:36 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyfp-0004wS-Vt for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:34 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyfo-0006Nx-Fj for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:33 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZyeu-0008m4-Tz; Tue, 13 Feb 2024 19:41:41 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=dF+0iXt3A2oU6ZpqfQ69+kz5PzEX70MTcPwj4fQaWo0=; b=aL52GBRBwrXOfwjkFzZMOOmmmX wugRlMJYY7/j5/Xo+YaRnE0QRCtJD0bNLXlvgglAT3QPzLspjXGYyoWLde82sMNNmYlYckdNGJd9z BZke1fuuj4YR7lsNC4TOGMn4PtxqwFrYX1PLSPa48fus7zfR1g9pnD40bBNQOgTTfoKVdqbkePl6j Si4jmKVx3PQWJ+L6tpSaqPLA8TqaNpgcQn2ZslHlHm6CJRO++whzBasDrzXERq9AQ5KaJqc7llkFp xAJ9Xb4j1lMTE2CY0/PJ080xx+J1t+saFqnzd+bO5rEQH3wy3EJJS8nkdPMnkff1WpieMpFBeMdpb MKfI5HkQpVMw3Lr9jUXRicfmYErCpQ8+WKu2/YFAPQUrmiZHtfxMvSHqNNkNFdgt+EjCH8xXnCxlD ag2A2XGYrnqF9MaRXyP2HZi3MmqVRsI61JSrmnM8v3oT/Qv+DS9KyySyaCRAbJK+VH9jHdVKH0pA0 r/Zb8ICufNt/zw0Ay3nzv4l9owsJWRbhpXZGDGt7ePYumK8bOHG1eJD3kqXZ3IcAHWuASgdozgiQP ykDb4WIKtohsiFEqdo7q7q2mL63GIaKyIyjrP+uER8OeUKrm+E2UDikmb1TL66A5xKu2d42eRiSfr q3UkWz0Mg1egOay67EYitoSD9435uBgSDdjESJ9BU=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:46 +0000 Message-Id: <20240213194052.1162753-23-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 22/88] esp.c: ensure that the PDMA callback is called for every device read X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853575458100001 Content-Type: text/plain; charset="utf-8" Rather than wait for the FIFO to fill up before calling the PDMA callback, = push that logic directly into the from_device logic in do_dma_pdma_cb(). Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-23-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 06be9f2e74..d80a38daa0 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -625,14 +625,14 @@ static void do_dma_pdma_cb(ESPState *s) =20 return; } else { - if (s->async_len =3D=3D 0) { + if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { /* Defer until the scsi layer has completed */ scsi_req_continue(s->current_req); s->data_in_ready =3D false; return; } =20 - if (esp_get_tc(s) =3D=3D 0) { + if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { esp_lower_drq(s); esp_dma_done(s); } @@ -1419,9 +1419,7 @@ static uint64_t sysbus_esp_pdma_read(void *opaque, hw= addr addr, val =3D (val << 8) | esp_pdma_read(s); break; } - if (fifo8_num_used(&s->fifo) < 2) { - esp_pdma_cb(s); - } + esp_pdma_cb(s); return val; } =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853545639917.1102738300992; Tue, 13 Feb 2024 11:45:45 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyft-0005Em-33; Tue, 13 Feb 2024 14:42:37 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyfr-000550-6q for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:35 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyfp-0006OA-OZ for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:47 +0000 Message-Id: <20240213194052.1162753-24-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 23/88] esp.c: don't immediately raise INTR_BS if SCSI data needed in esp_do_dma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853547395100007 Content-Type: text/plain; charset="utf-8" In the case when more data is requested from the SCSI layer during a DMA da= ta transfer from a device, don't immediately fall through to the TC check logi= c. Otherwise when TC is zero INTR_BS will be raised immediately rather than wh= en the next set of SCSI data is ready. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-24-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index d80a38daa0..1f9902aec0 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -745,6 +745,7 @@ static void esp_do_dma(ESPState *s) =20 if (s->async_len =3D=3D 0) { scsi_req_continue(s->current_req); + return; } =20 if (esp_get_tc(s) =3D=3D 0) { --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853700552167.28313750709322; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:48 +0000 Message-Id: <20240213194052.1162753-25-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 24/88] esp.c: remove TC adjustment in esp_do_dma() from device path X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853702320100001 Content-Type: text/plain; charset="utf-8" Now that the TC is updated for each PDMA access (rather than once the FIFO = is full) there is no need to adjust the TC at start of each DMA transfer if the FIFO is not empty. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-25-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 1f9902aec0..ec82097a01 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -754,11 +754,6 @@ static void esp_do_dma(ESPState *s) esp_lower_drq(s); } } else { - /* Adjust TC for any leftover data in the FIFO */ - if (!fifo8_is_empty(&s->fifo)) { - esp_set_tc(s, esp_get_tc(s) - fifo8_num_used(&s->fifo)); - } - /* Copy device data to FIFO */ len =3D MIN(len, fifo8_num_free(&s->fifo)); fifo8_push_all(&s->fifo, s->async_buf, len); --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:49 +0000 Message-Id: <20240213194052.1162753-26-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 25/88] esp.c: remove unaligned adjustment in do_dma_pdma_cb() to device path X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853375124100003 Content-Type: text/plain; charset="utf-8" With the latest changes this condition cannot occur anymore and so the logic can be completely removed. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-26-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index ec82097a01..3db90c9ab7 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -604,15 +604,6 @@ static void do_dma_pdma_cb(ESPState *s) s->async_len -=3D n; s->ti_size +=3D n; =20 - if (n < len) { - /* Unaligned accesses can cause FIFO wraparound */ - len =3D len - n; - n =3D esp_fifo_pop_buf(&s->fifo, s->async_buf, len); - s->async_buf +=3D n; - s->async_len -=3D n; - s->ti_size +=3D n; - } - if (s->async_len =3D=3D 0) { scsi_req_continue(s->current_req); return; --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:50 +0000 Message-Id: <20240213194052.1162753-27-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 26/88] esp.c: remove unneeded if() check in esp_transfer_data() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853413111100001 Content-Type: text/plain; charset="utf-8" The following ti_cmd checks ensure that only DMA and non-DMA TI commmands w= ill can call into the esp_do_dma() and esp_do_nodma() callbacks. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-27-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 3db90c9ab7..96123c5f7d 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -916,16 +916,13 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) esp_raise_irq(s); } =20 - if (s->ti_cmd =3D=3D 0) { - /* - * Always perform the initial transfer upon reception of the next = TI - * command to ensure the DMA/non-DMA status of the command is corr= ect. - * It is not possible to use s->dma directly in the section below = as - * some OSs send non-DMA NOP commands after a DMA transfer. Hence = if the - * async data transfer is delayed then s->dma is set incorrectly. - */ - return; - } + /* + * Always perform the initial transfer upon reception of the next TI + * command to ensure the DMA/non-DMA status of the command is correct. + * It is not possible to use s->dma directly in the section below as + * some OSs send non-DMA NOP commands after a DMA transfer. Hence if t= he + * async data transfer is delayed then s->dma is set incorrectly. + */ =20 if (s->ti_cmd =3D=3D (CMD_TI | CMD_DMA)) { if (dmalen) { --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853613992630.3436242669496; Tue, 13 Feb 2024 11:46:53 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyg6-0006vv-0l; Tue, 13 Feb 2024 14:42:50 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyg1-0006GV-PB for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:46 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyg0-0006PJ-91 for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:45 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZyf9-0008m4-M3; Tue, 13 Feb 2024 19:41:53 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=rztxPF2KL8bBXmJOqN6I30ocrg/o4uM0EjWkKsf+Its=; b=iYTOdRchRnUgbERToQ1Z50ELyv jDEoEATzGWGCD2t2BKun9iVWI3uIj/5Ok9YLNlAiALbcYp5D5Lxj2/zTGJljyPUpKbRGn1ZJ1IB2p KYwVqpl38eH7op9qX9L6Xf1wwZNgzetNUtkAAOsWEYh9M/ECLBthHO0/PhH0woVr+FRNXuN5Ga+HX 60G1jiLUD+x/I21M/SEgygPh77woRlTuvsFaEV/OiH/gkCASpVhGWZPnF/hbbSBPq1ioBMjfl9Ke4 NGGde7NG52/OqBd7Yk+FVtnarMBpMqywfn4pADcCHYH3o7LgDqMKhiVAZ9ovsWezWIl6KgjaagERL 6Pmyfgt6gE5xAfI0m+wViy9tl3tt+eEzgSO+dhkYsslrl2hHeUBdDP1Ixya2gYYI2TQL1/22KdiwR pl6LLqMTrIvhFm7eN6OyILuN5EfZisrq3Zkmu7Bin5XNZAiOzdDnN8L9WOxzdKpDOMGUivEY3Ypaf ZH9FpQygZHS8E4ZB1dqEpsZqkVOxDp6X2NWOEWKTN8SetKc4fltxf+SwiIvZtpoMYK9YN7dE+mZSM d9FPDJKNtv0bgzAESD3wh6SlnudFWyz1FJxvqlr5hs9UZFNUtneHkLKe5z9F1DnifqtVbfygYbM0p lYZKBV0bdwRIPujRFslTyWacH70xrG43Vo5t3luME=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:51 +0000 Message-Id: <20240213194052.1162753-28-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 27/88] esp.c: update end of transfer logic at the end of esp_transfer_data() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853615582100007 Content-Type: text/plain; charset="utf-8" Since esp_dma_done() is called in both cases, and ti_size cannot be zero (otherwise esp_command_complete() would have been called instead), replace the conditional logic with a single call to esp_dma_done(). Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-28-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 96123c5f7d..6b0811d3ce 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -925,16 +925,10 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) */ =20 if (s->ti_cmd =3D=3D (CMD_TI | CMD_DMA)) { - if (dmalen) { - esp_do_dma(s); - } else if (s->ti_size <=3D 0) { - /* - * If this was the last part of a DMA transfer then the - * completion interrupt is deferred to here. - */ - esp_dma_done(s); - esp_lower_drq(s); - } + /* When the SCSI layer returns more data, raise deferred INTR_BS */ + esp_dma_done(s); + + esp_do_dma(s); } else if (s->ti_cmd =3D=3D CMD_TI) { esp_do_nodma(s); } --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:52 +0000 Message-Id: <20240213194052.1162753-29-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 28/88] esp.c: consolidate async_len and TC == 0 checks in do_dma_pdma_cb() and esp_do_dma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853533359100003 Content-Type: text/plain; charset="utf-8" Ensure that the async_len checks for requesting data from the SCSI layer and the TC =3D=3D 0 checks to detect the end of the DMA transfer are consistent= in both do_dma_pdma_cb() and esp_do_dma(). In particular this involves adding the c= heck to see if the FIFO is at its low threshold since PDMA and mixed DMA and non= -DMA requests can leave data remaining in the FIFO. At the same time update all the comments so that they are also consistent b= etween all similar code paths. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-29-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 44 +++++++++++++++++++++++++++++++------------- 1 file changed, 31 insertions(+), 13 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 6b0811d3ce..f20026c3dc 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -604,12 +604,13 @@ static void do_dma_pdma_cb(ESPState *s) s->async_len -=3D n; s->ti_size +=3D n; =20 - if (s->async_len =3D=3D 0) { + if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { + /* Defer until the scsi layer has completed */ scsi_req_continue(s->current_req); return; } =20 - if (esp_get_tc(s) =3D=3D 0) { + if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { esp_lower_drq(s); esp_dma_done(s); } @@ -706,24 +707,30 @@ static void esp_do_dma(ESPState *s) s->async_len -=3D len; s->ti_size +=3D len; =20 - if (s->async_len =3D=3D 0) { + if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { + /* Defer until the scsi layer has completed */ scsi_req_continue(s->current_req); - /* - * If there is still data to be read from the device then - * complete the DMA operation immediately. Otherwise defer - * until the scsi layer has completed. - */ return; } =20 - if (esp_get_tc(s) =3D=3D 0) { - /* Partially filled a scsi buffer. Complete immediately. = */ + if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { esp_dma_done(s); esp_lower_drq(s); } } else { esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); + + if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { + /* Defer until the scsi layer has completed */ + scsi_req_continue(s->current_req); + return; + } + + if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { + esp_dma_done(s); + esp_lower_drq(s); + } } } else { if (s->dma_memory_write) { @@ -734,13 +741,13 @@ static void esp_do_dma(ESPState *s) s->async_len -=3D len; s->ti_size -=3D len; =20 - if (s->async_len =3D=3D 0) { + if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { + /* Defer until the scsi layer has completed */ scsi_req_continue(s->current_req); return; } =20 - if (esp_get_tc(s) =3D=3D 0) { - /* Partially filled a scsi buffer. Complete immediately. = */ + if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { esp_dma_done(s); esp_lower_drq(s); } @@ -754,6 +761,17 @@ static void esp_do_dma(ESPState *s) esp_set_tc(s, esp_get_tc(s) - len); esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); + + if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { + /* Defer until the scsi layer has completed */ + scsi_req_continue(s->current_req); + return; + } + + if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { + esp_lower_drq(s); + esp_dma_done(s); + } } } } --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853377427773.8609156356621; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:53 +0000 Message-Id: <20240213194052.1162753-30-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 29/88] esp.c: fix premature end of phase logic esp_command_complete X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853378983100003 Content-Type: text/plain; charset="utf-8" There are two cases here: the first is when the TI command underflows, in w= hich case we raise INTR_BS to indicate an early change of phase, and the second = is when the TI command overflows because the host requested a transfer for more data than is available. In the latter case force TC to zero so that the TI completion logic executes correctly. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-30-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index f20026c3dc..c6151d306e 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -887,7 +887,6 @@ void esp_command_complete(SCSIRequest *req, size_t resi= d) if (s->ti_size !=3D 0) { trace_esp_command_complete_unexpected(); } - s->ti_size =3D 0; } =20 s->async_len =3D 0; @@ -897,13 +896,26 @@ void esp_command_complete(SCSIRequest *req, size_t re= sid) s->status =3D req->status; =20 /* - * If the transfer is finished, switch to status phase. For non-DMA - * transfers from the target the last byte is still in the FIFO + * Switch to status phase. For non-DMA transfers from the target the l= ast + * byte is still in the FIFO */ + esp_set_phase(s, STAT_ST); if (s->ti_size =3D=3D 0) { - esp_set_phase(s, STAT_ST); + /* + * Transfer complete: force TC to zero just in case a TI command w= as + * requested for more data than the command returns (Solaris 8 does + * this) + */ + esp_set_tc(s, 0); esp_dma_done(s); - esp_lower_drq(s); + } else { + /* + * Transfer truncated: raise INTR_BS to indicate early change of + * phase + */ + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + s->ti_size =3D 0; } =20 if (s->current_req) { --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853494187968.6946932665384; Tue, 13 Feb 2024 11:44:54 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZygG-0007ae-S9; Tue, 13 Feb 2024 14:43:00 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZygF-0007RO-2h for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:59 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyg9-0006Q4-Hc for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:42:58 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZyfG-0008m4-0n; Tue, 13 Feb 2024 19:42:01 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=A7Ml3OJRuG9i9wCVUKZri2ee9kNdSQpXNdwl+PnHGcw=; b=1ABVLHiY1qs+tqCUxSYyUUf2lF TRfvxHcl7GlSPzFgrwnc9aP5rHQdxP59VM82dcvclcy4idBqOx4R77In8jkOYBJ/5wvvrx6ougndP f4MypvrJcAdUQCH/klZkixQYQ1FoWgmGFNP9Bu+3ifTTieLtq/AN3D0ROwQrYHoFPG0VyagBhUtgR S2OJlUpCS7Ohx2cZvmHt6eG0EdUL++mu7sfRC3E5KGWhs0x6vs450STT3Pw+o8Jowl0PeiqS/5vAe DG7ZTs2dFJdEaH4GX3RK01mojARelp45ROca1PAe0gZ9GK+zpARGT1Epr3OxwfD9gvgbkZFMq5Hlh vSYCeiITyHsYrNaNUBSt7YBI7hHMoXPEtmnHebIrP01TVD8pIghTQJzDu4rmfE2DT5xJsBtArLNkt VryBv8tHIDenSeuSfADw7exxBvGe8nGGYa1WZHWqxYYftMt/jSS0+X7z7QlzA8kAGRXcMSxLm7iBz lZRleR5vX+hIGktcLxoMw3QGwS+HBajZY02V2GnTvMZbdPNhVYVhEHncnFTdAAldIpaEaJs/zX/su WcMbJeoYaK0KnxNqk0v1+LDTV7Uxl/Sj014/hBs54zQ90BjPd41busaV2zEoykhmwbMNHWGY/w2FX zozWL9X3JztyZvMkTzA/QP+YBlWPczxGbQD93J7PA=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:54 +0000 Message-Id: <20240213194052.1162753-31-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 30/88] esp.c: move TC and FIFO check logic into esp_dma_done() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853495242100003 Content-Type: text/plain; charset="utf-8" This helps simplify the existing implementation. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-31-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 39 +++++++++++---------------------------- 1 file changed, 11 insertions(+), 28 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index c6151d306e..4d58a49c73 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -545,8 +545,11 @@ static void write_response(ESPState *s) =20 static void esp_dma_done(ESPState *s) { - s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); + if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + esp_lower_drq(s); + } } =20 static void do_dma_pdma_cb(ESPState *s) @@ -610,12 +613,7 @@ static void do_dma_pdma_cb(ESPState *s) return; } =20 - if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - esp_lower_drq(s); - esp_dma_done(s); - } - - return; + esp_dma_done(s); } else { if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { /* Defer until the scsi layer has completed */ @@ -624,10 +622,7 @@ static void do_dma_pdma_cb(ESPState *s) return; } =20 - if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - esp_lower_drq(s); - esp_dma_done(s); - } + esp_dma_done(s); =20 /* Copy device data to FIFO */ len =3D MIN(s->async_len, esp_get_tc(s)); @@ -713,10 +708,7 @@ static void esp_do_dma(ESPState *s) return; } =20 - if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - esp_dma_done(s); - esp_lower_drq(s); - } + esp_dma_done(s); } else { esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); @@ -727,10 +719,7 @@ static void esp_do_dma(ESPState *s) return; } =20 - if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - esp_dma_done(s); - esp_lower_drq(s); - } + esp_dma_done(s); } } else { if (s->dma_memory_write) { @@ -747,10 +736,7 @@ static void esp_do_dma(ESPState *s) return; } =20 - if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - esp_dma_done(s); - esp_lower_drq(s); - } + esp_dma_done(s); } else { /* Copy device data to FIFO */ len =3D MIN(len, fifo8_num_free(&s->fifo)); @@ -768,10 +754,7 @@ static void esp_do_dma(ESPState *s) return; } =20 - if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - esp_lower_drq(s); - esp_dma_done(s); - } + esp_dma_done(s); } } } --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853564790914.5530361449221; Tue, 13 Feb 2024 11:46:04 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZygG-0007Zl-Nm; Tue, 13 Feb 2024 14:43:00 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZygF-0007RQ-2Q for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:55 +0000 Message-Id: <20240213194052.1162753-32-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 31/88] esp.c: rename esp_dma_done() to esp_dma_ti_check() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853565422100003 Content-Type: text/plain; charset="utf-8" This is because a single DMA request can be transferred using multiple TI commands, and so a TC equal to zero may not represent the completion of the SCSI DMA command. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-32-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 4d58a49c73..14c6d05253 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -543,7 +543,7 @@ static void write_response(ESPState *s) esp_raise_irq(s); } =20 -static void esp_dma_done(ESPState *s) +static void esp_dma_ti_check(ESPState *s) { if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { s->rregs[ESP_RINTR] |=3D INTR_BS; @@ -613,7 +613,7 @@ static void do_dma_pdma_cb(ESPState *s) return; } =20 - esp_dma_done(s); + esp_dma_ti_check(s); } else { if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { /* Defer until the scsi layer has completed */ @@ -622,7 +622,7 @@ static void do_dma_pdma_cb(ESPState *s) return; } =20 - esp_dma_done(s); + esp_dma_ti_check(s); =20 /* Copy device data to FIFO */ len =3D MIN(s->async_len, esp_get_tc(s)); @@ -708,7 +708,7 @@ static void esp_do_dma(ESPState *s) return; } =20 - esp_dma_done(s); + esp_dma_ti_check(s); } else { esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); @@ -719,7 +719,7 @@ static void esp_do_dma(ESPState *s) return; } =20 - esp_dma_done(s); + esp_dma_ti_check(s); } } else { if (s->dma_memory_write) { @@ -736,7 +736,7 @@ static void esp_do_dma(ESPState *s) return; } =20 - esp_dma_done(s); + esp_dma_ti_check(s); } else { /* Copy device data to FIFO */ len =3D MIN(len, fifo8_num_free(&s->fifo)); @@ -754,7 +754,7 @@ static void esp_do_dma(ESPState *s) return; } =20 - esp_dma_done(s); + esp_dma_ti_check(s); } } } @@ -890,7 +890,7 @@ void esp_command_complete(SCSIRequest *req, size_t resi= d) * this) */ esp_set_tc(s, 0); - esp_dma_done(s); + esp_dma_ti_check(s); } else { /* * Transfer truncated: raise INTR_BS to indicate early change of @@ -939,7 +939,7 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) =20 if (s->ti_cmd =3D=3D (CMD_TI | CMD_DMA)) { /* When the SCSI layer returns more data, raise deferred INTR_BS */ - esp_dma_done(s); + esp_dma_ti_check(s); =20 esp_do_dma(s); } else if (s->ti_cmd =3D=3D CMD_TI) { --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853720607381.3575831274552; Tue, 13 Feb 2024 11:48:40 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZygL-0007nX-5I; Tue, 13 Feb 2024 14:43:06 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZygH-0007cZ-Rf for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:43:02 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZygG-0006Sm-EK for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:56 +0000 Message-Id: <20240213194052.1162753-33-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 32/88] esp.c: copy PDMA logic for transfers to device from do_dma_pdma_cb() to esp_do_dma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853722261100003 Content-Type: text/plain; charset="utf-8" This is so that PDMA transfers can be performend by esp_do_dma() as well as do_dma_pdma_cb(). Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-33-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 14c6d05253..65b4baab83 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -640,6 +640,7 @@ static void esp_do_dma(ESPState *s) uint32_t len, cmdlen; int to_device =3D ((s->rregs[ESP_RSTAT] & 7) =3D=3D STAT_DO); uint8_t buf[ESP_CMDFIFO_SZ]; + int n; =20 len =3D esp_get_tc(s); if (s->do_cmd) { @@ -710,6 +711,14 @@ static void esp_do_dma(ESPState *s) =20 esp_dma_ti_check(s); } else { + /* Copy FIFO data to device */ + len =3D MIN(s->async_len, ESP_FIFO_SZ); + len =3D MIN(len, fifo8_num_used(&s->fifo)); + n =3D esp_fifo_pop_buf(&s->fifo, s->async_buf, len); + s->async_buf +=3D n; + s->async_len -=3D n; + s->ti_size +=3D n; + esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:57 +0000 Message-Id: <20240213194052.1162753-34-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 33/88] esp.c: copy logic for do_cmd transfers from do_dma_pdma_cb() to esp_do_dma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853784482100006 Content-Type: text/plain; charset="utf-8" This is so that PDMA transfers can be performend by esp_do_dma() as well as do_dma_pdma_cb(). Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-34-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 65b4baab83..14284ef54a 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -656,9 +656,18 @@ static void esp_do_dma(ESPState *s) fifo8_push_all(&s->cmdfifo, buf, len); esp_set_tc(s, esp_get_tc(s) - len); } else { + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + esp_set_tc(s, esp_get_tc(s) - n); + esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); - return; + + /* Ensure we have received complete command after SATN and sto= p */ + if (esp_get_tc(s) || fifo8_is_empty(&s->cmdfifo)) { + return; + } } trace_esp_handle_ti_cmd(cmdlen); s->ti_size =3D 0; --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:58 +0000 Message-Id: <20240213194052.1162753-35-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 34/88] esp.c: update esp_do_dma() bypass if async_len is zero to include non-zero transfer check X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853784479100005 Content-Type: text/plain; charset="utf-8" In the PDMA case the last transfer from the device to the FIFO has occurred (async_len is zero) but esp_do_dma() is still being called to drain the remaining FIFO contents. The additional non-zero transfer check ensures that we still defer the SCSI layer in the case where we are waiting for data for a TI command or a DMA enable signal. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-35-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 14284ef54a..9647be4cc3 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -696,7 +696,7 @@ static void esp_do_dma(ESPState *s) if (!s->current_req) { return; } - if (s->async_len =3D=3D 0) { + if (s->async_len =3D=3D 0 && esp_get_tc(s) && s->ti_size) { /* Defer until data is available. */ return; } --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853433629255.58699195650377; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:39:59 +0000 Message-Id: <20240213194052.1162753-36-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 35/88] esp.c: move end of SCSI transfer check after TC adjustment in do_dma_pdma_cb() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853435102100007 Content-Type: text/plain; charset="utf-8" Now it is possible to move the end of SCSI transfer check to after the TC adjustment in do_dma_pdma_cb() when transferring data from the device without triggering an assert() in the SCSI code. This brings this check in line with all the others in esp_do_dma() and do_dma_pdma_cb(). Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-36-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 9647be4cc3..df4d5f8811 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -615,15 +615,6 @@ static void do_dma_pdma_cb(ESPState *s) =20 esp_dma_ti_check(s); } else { - if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - /* Defer until the scsi layer has completed */ - scsi_req_continue(s->current_req); - s->data_in_ready =3D false; - return; - } - - esp_dma_ti_check(s); - /* Copy device data to FIFO */ len =3D MIN(s->async_len, esp_get_tc(s)); len =3D MIN(len, fifo8_num_free(&s->fifo)); @@ -632,6 +623,15 @@ static void do_dma_pdma_cb(ESPState *s) s->async_len -=3D len; s->ti_size -=3D len; esp_set_tc(s, esp_get_tc(s) - len); + + if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { + /* Defer until the scsi layer has completed */ + scsi_req_continue(s->current_req); + s->data_in_ready =3D false; + return; + } + + esp_dma_ti_check(s); } } =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853565317220.9321977991615; Tue, 13 Feb 2024 11:46:05 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZygZ-0000SR-Nf; Tue, 13 Feb 2024 14:43:19 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZygY-0000Oe-89 for qemu-devel@nongnu.org; Tue, 13 Feb 2024 14:43:18 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZygW-0006UV-PE for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:00 +0000 Message-Id: <20240213194052.1162753-37-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 36/88] esp.c: remove s_without_satn_pdma_cb() PDMA callback X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853567429100009 Content-Type: text/plain; charset="utf-8" This can now be handled by the existing do_dma_pdma_cb() function. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-37-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 22 +--------------------- include/hw/scsi/esp.h | 1 - 2 files changed, 1 insertion(+), 22 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index df4d5f8811..16cb6c72fd 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -408,23 +408,6 @@ static void handle_satn(ESPState *s) } } =20 -static void s_without_satn_pdma_cb(ESPState *s) -{ - uint8_t buf[ESP_FIFO_SZ]; - int n; - - /* Copy FIFO into cmdfifo */ - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); - - if (!esp_get_tc(s) && !fifo8_is_empty(&s->cmdfifo)) { - s->cmdfifo_cdb_offset =3D 0; - s->do_cmd =3D 0; - do_cmd(s); - } -} - static void handle_s_without_atn(ESPState *s) { int32_t cmdlen; @@ -433,7 +416,7 @@ static void handle_s_without_atn(ESPState *s) s->dma_cb =3D handle_s_without_atn; return; } - esp_set_pdma_cb(s, S_WITHOUT_SATN_PDMA_CB); + esp_set_pdma_cb(s, DO_DMA_PDMA_CB); if (esp_select(s) < 0) { return; } @@ -856,9 +839,6 @@ static void esp_pdma_cb(ESPState *s) case SATN_PDMA_CB: satn_pdma_cb(s); break; - case S_WITHOUT_SATN_PDMA_CB: - s_without_satn_pdma_cb(s); - break; case SATN_STOP_PDMA_CB: satn_stop_pdma_cb(s); break; diff --git a/include/hw/scsi/esp.h b/include/hw/scsi/esp.h index 13b17496f8..b727181da9 100644 --- a/include/hw/scsi/esp.h +++ b/include/hw/scsi/esp.h @@ -153,7 +153,6 @@ struct SysBusESPState { /* PDMA callbacks */ enum pdma_cb { SATN_PDMA_CB =3D 0, - S_WITHOUT_SATN_PDMA_CB =3D 1, SATN_STOP_PDMA_CB =3D 2, WRITE_RESPONSE_PDMA_CB =3D 3, DO_DMA_PDMA_CB =3D 4 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:01 +0000 Message-Id: <20240213194052.1162753-38-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 37/88] esp.c: introduce esp_get_phase() function X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853682156100003 Make use of this new function in all places where the SCSI phase bits are manually masked from the ESP_RSTAT register. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20240112125420.514425-38-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 16cb6c72fd..de8d98082a 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -196,6 +196,11 @@ static void esp_set_phase(ESPState *s, uint8_t phase) trace_esp_set_phase(esp_phase_names[phase]); } =20 +static uint8_t esp_get_phase(ESPState *s) +{ + return s->rregs[ESP_RSTAT] & 7; +} + static uint8_t esp_pdma_read(ESPState *s) { uint8_t val; @@ -537,7 +542,7 @@ static void esp_dma_ti_check(ESPState *s) =20 static void do_dma_pdma_cb(ESPState *s) { - int to_device =3D ((s->rregs[ESP_RSTAT] & 7) =3D=3D STAT_DO); + int to_device =3D (esp_get_phase(s) =3D=3D STAT_DO); uint8_t buf[ESP_CMDFIFO_SZ]; int len; uint32_t n; @@ -554,7 +559,7 @@ static void do_dma_pdma_cb(ESPState *s) } =20 s->ti_size =3D 0; - if ((s->rregs[ESP_RSTAT] & 7) =3D=3D STAT_CD) { + if (esp_get_phase(s) =3D=3D STAT_CD) { /* No command received */ if (s->cmdfifo_cdb_offset =3D=3D fifo8_num_used(&s->cmdfifo)) { return; @@ -621,7 +626,7 @@ static void do_dma_pdma_cb(ESPState *s) static void esp_do_dma(ESPState *s) { uint32_t len, cmdlen; - int to_device =3D ((s->rregs[ESP_RSTAT] & 7) =3D=3D STAT_DO); + int to_device =3D (esp_get_phase(s) =3D=3D STAT_DO); uint8_t buf[ESP_CMDFIFO_SZ]; int n; =20 @@ -654,7 +659,7 @@ static void esp_do_dma(ESPState *s) } trace_esp_handle_ti_cmd(cmdlen); s->ti_size =3D 0; - if ((s->rregs[ESP_RSTAT] & 7) =3D=3D STAT_CD) { + if (esp_get_phase(s) =3D=3D STAT_CD) { /* No command received */ if (s->cmdfifo_cdb_offset =3D=3D fifo8_num_used(&s->cmdfifo)) { return; @@ -762,7 +767,7 @@ static void esp_do_dma(ESPState *s) =20 static void esp_do_nodma(ESPState *s) { - int to_device =3D ((s->rregs[ESP_RSTAT] & 7) =3D=3D STAT_DO); + int to_device =3D (esp_get_phase(s) =3D=3D STAT_DO); uint8_t buf[ESP_FIFO_SZ]; uint32_t cmdlen; int len, n; @@ -776,7 +781,7 @@ static void esp_do_nodma(ESPState *s) cmdlen =3D fifo8_num_used(&s->cmdfifo); trace_esp_handle_ti_cmd(cmdlen); s->ti_size =3D 0; - if ((s->rregs[ESP_RSTAT] & 7) =3D=3D STAT_CD) { + if (esp_get_phase(s) =3D=3D STAT_CD) { /* No command received */ if (s->cmdfifo_cdb_offset =3D=3D fifo8_num_used(&s->cmdfifo)) { return; @@ -856,7 +861,7 @@ static void esp_pdma_cb(ESPState *s) void esp_command_complete(SCSIRequest *req, size_t resid) { ESPState *s =3D req->hba_private; - int to_device =3D ((s->rregs[ESP_RSTAT] & 7) =3D=3D STAT_DO); + int to_device =3D (esp_get_phase(s) =3D=3D STAT_DO); =20 trace_esp_command_complete(); =20 @@ -909,7 +914,7 @@ void esp_command_complete(SCSIRequest *req, size_t resi= d) void esp_transfer_data(SCSIRequest *req, uint32_t len) { ESPState *s =3D req->hba_private; - int to_device =3D ((s->rregs[ESP_RSTAT] & 7) =3D=3D STAT_DO); + int to_device =3D (esp_get_phase(s) =3D=3D STAT_DO); uint32_t dmalen =3D esp_get_tc(s); =20 assert(!s->do_cmd); @@ -1103,7 +1108,7 @@ uint64_t esp_reg_read(ESPState *s, uint32_t saddr) qemu_log_mask(LOG_UNIMP, "esp: PIO data read not implemented\n= "); s->rregs[ESP_FIFO] =3D 0; } else { - if ((s->rregs[ESP_RSTAT] & 0x7) =3D=3D STAT_DI) { + if (esp_get_phase(s) =3D=3D STAT_DI) { if (s->ti_size) { esp_do_nodma(s); } else { --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853446462753.7691249017859; Tue, 13 Feb 2024 11:44:06 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZygw-0001FA-NZ; Tue, 13 Feb 2024 14:43:42 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZygn-0000mU-9n for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:02 +0000 Message-Id: <20240213194052.1162753-39-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 38/88] esp.c: convert esp_do_dma() to switch statement based upon SCSI phase X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853447149100001 Content-Type: text/plain; charset="utf-8" Currently only the DATA IN and DATA OUT phases are supported. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-39-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 40 +++++++++++++++++++++++++++------------- 1 file changed, 27 insertions(+), 13 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index de8d98082a..67d1d39db2 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -626,7 +626,6 @@ static void do_dma_pdma_cb(ESPState *s) static void esp_do_dma(ESPState *s) { uint32_t len, cmdlen; - int to_device =3D (esp_get_phase(s) =3D=3D STAT_DO); uint8_t buf[ESP_CMDFIFO_SZ]; int n; =20 @@ -681,17 +680,19 @@ static void esp_do_dma(ESPState *s) } return; } - if (!s->current_req) { - return; - } - if (s->async_len =3D=3D 0 && esp_get_tc(s) && s->ti_size) { - /* Defer until data is available. */ - return; - } - if (len > s->async_len) { - len =3D s->async_len; - } - if (to_device) { + + switch (esp_get_phase(s)) { + case STAT_DO: + if (!s->current_req) { + return; + } + if (s->async_len =3D=3D 0 && esp_get_tc(s) && s->ti_size) { + /* Defer until data is available. */ + return; + } + if (len > s->async_len) { + len =3D s->async_len; + } if (s->dma_memory_read) { s->dma_memory_read(s->dma_opaque, s->async_buf, len); =20 @@ -727,7 +728,19 @@ static void esp_do_dma(ESPState *s) =20 esp_dma_ti_check(s); } - } else { + break; + + case STAT_DI: + if (!s->current_req) { + return; + } + if (s->async_len =3D=3D 0 && esp_get_tc(s) && s->ti_size) { + /* Defer until data is available. */ + return; + } + if (len > s->async_len) { + len =3D s->async_len; + } if (s->dma_memory_write) { s->dma_memory_write(s->dma_opaque, s->async_buf, len); =20 @@ -762,6 +775,7 @@ static void esp_do_dma(ESPState *s) =20 esp_dma_ti_check(s); } + break; } } =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:03 +0000 Message-Id: <20240213194052.1162753-40-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 39/88] esp.c: convert do_dma_pdma_db() to switch statement based upon SCSI phase X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853429099100005 Content-Type: text/plain; charset="utf-8" Currently only the DATA IN and DATA OUT phases are supported. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-40-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 67d1d39db2..f6d05b0de7 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -542,7 +542,6 @@ static void esp_dma_ti_check(ESPState *s) =20 static void do_dma_pdma_cb(ESPState *s) { - int to_device =3D (esp_get_phase(s) =3D=3D STAT_DO); uint8_t buf[ESP_CMDFIFO_SZ]; int len; uint32_t n; @@ -582,11 +581,11 @@ static void do_dma_pdma_cb(ESPState *s) return; } =20 - if (!s->current_req) { - return; - } - - if (to_device) { + switch (esp_get_phase(s)) { + case STAT_DO: + if (!s->current_req) { + return; + } /* Copy FIFO data to device */ len =3D MIN(s->async_len, ESP_FIFO_SZ); len =3D MIN(len, fifo8_num_used(&s->fifo)); @@ -602,7 +601,12 @@ static void do_dma_pdma_cb(ESPState *s) } =20 esp_dma_ti_check(s); - } else { + break; + + case STAT_DI: + if (!s->current_req) { + return; + } /* Copy device data to FIFO */ len =3D MIN(s->async_len, esp_get_tc(s)); len =3D MIN(len, fifo8_num_free(&s->fifo)); @@ -620,6 +624,7 @@ static void do_dma_pdma_cb(ESPState *s) } =20 esp_dma_ti_check(s); + break; } } =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853768223423.48019526892665; Tue, 13 Feb 2024 11:49:28 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZygx-0001Om-Jp; Tue, 13 Feb 2024 14:43:43 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZygn-0000lV-7G for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:04 +0000 Message-Id: <20240213194052.1162753-41-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 40/88] esp.c: convert esp_do_nodma() to switch statement based upon SCSI phase X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853770395100011 Content-Type: text/plain; charset="utf-8" Currently only the DATA IN and DATA OUT phases are supported. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-41-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 54 +++++++++++++++++++++++++++++++++------------------ 1 file changed, 35 insertions(+), 19 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index f6d05b0de7..c1b44e5f18 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -786,7 +786,6 @@ static void esp_do_dma(ESPState *s) =20 static void esp_do_nodma(ESPState *s) { - int to_device =3D (esp_get_phase(s) =3D=3D STAT_DO); uint8_t buf[ESP_FIFO_SZ]; uint32_t cmdlen; int len, n; @@ -823,38 +822,55 @@ static void esp_do_nodma(ESPState *s) return; } =20 - if (!s->current_req) { - return; - } - - if (s->async_len =3D=3D 0) { - /* Defer until data is available. */ - return; - } - - if (to_device) { + switch (esp_get_phase(s)) { + case STAT_DO: + if (!s->current_req) { + return; + } + if (s->async_len =3D=3D 0) { + /* Defer until data is available. */ + return; + } len =3D MIN(s->async_len, ESP_FIFO_SZ); len =3D MIN(len, fifo8_num_used(&s->fifo)); esp_fifo_pop_buf(&s->fifo, s->async_buf, len); s->async_buf +=3D len; s->async_len -=3D len; s->ti_size +=3D len; - } else { + + if (s->async_len =3D=3D 0) { + scsi_req_continue(s->current_req); + return; + } + + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + break; + + case STAT_DI: + if (!s->current_req) { + return; + } + if (s->async_len =3D=3D 0) { + /* Defer until data is available. */ + return; + } if (fifo8_is_empty(&s->fifo)) { fifo8_push(&s->fifo, s->async_buf[0]); s->async_buf++; s->async_len--; s->ti_size--; } - } =20 - if (s->async_len =3D=3D 0) { - scsi_req_continue(s->current_req); - return; - } + if (s->async_len =3D=3D 0) { + scsi_req_continue(s->current_req); + return; + } =20 - s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + break; + } } =20 static void esp_pdma_cb(ESPState *s) --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:05 +0000 Message-Id: <20240213194052.1162753-42-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 41/88] esp.c: convert esp_do_dma() do_cmd path to check for SCSI phase instead X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853429123100006 Content-Type: text/plain; charset="utf-8" Currently do_cmd is used to determine whether MESSAGE OUT and COMMAND phase= data is being accumulated in cmdfifo. Update esp_do_dma() to check directly for = these two SCSI phases instead. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-42-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index c1b44e5f18..22739d3875 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -635,11 +635,10 @@ static void esp_do_dma(ESPState *s) int n; =20 len =3D esp_get_tc(s); - if (s->do_cmd) { - /* - * handle_ti_cmd() case: esp_do_dma() is called only from - * handle_ti_cmd() with do_cmd !=3D NULL (see the assert()) - */ + + switch (esp_get_phase(s)) { + case STAT_MO: + case STAT_CD: cmdlen =3D fifo8_num_used(&s->cmdfifo); trace_esp_do_dma(cmdlen, len); if (s->dma_memory_read) { @@ -683,10 +682,8 @@ static void esp_do_dma(ESPState *s) s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); } - return; - } + break; =20 - switch (esp_get_phase(s)) { case STAT_DO: if (!s->current_req) { return; --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:06 +0000 Message-Id: <20240213194052.1162753-43-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 42/88] esp.c: convert do_dma_pdma_cb() do_cmd path to check for SCSI phase instead X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853481216100003 Content-Type: text/plain; charset="utf-8" Currently do_cmd is used to determine whether MESSAGE OUT and COMMAND phase= data is being accumulated in cmdfifo. Update esp_do_dma() to check directly for = these two SCSI phases instead. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-43-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 22739d3875..b48e020689 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -546,7 +546,9 @@ static void do_dma_pdma_cb(ESPState *s) int len; uint32_t n; =20 - if (s->do_cmd) { + switch (esp_get_phase(s)) { + case STAT_MO: + case STAT_CD: /* Copy FIFO into cmdfifo */ n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); n =3D MIN(fifo8_num_free(&s->cmdfifo), n); @@ -578,10 +580,8 @@ static void do_dma_pdma_cb(ESPState *s) s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); } - return; - } + break; =20 - switch (esp_get_phase(s)) { case STAT_DO: if (!s->current_req) { return; --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:07 +0000 Message-Id: <20240213194052.1162753-44-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 43/88] esp.c: convert esp_do_nodma() do_cmd path to check for SCSI phase instead X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853453158100001 Content-Type: text/plain; charset="utf-8" Currently do_cmd is used to determine whether MESSAGE OUT and COMMAND phase= data is being accumulated in cmdfifo. Update esp_do_dma() to check directly for = these two SCSI phases instead. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-44-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index b48e020689..14759ada78 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -787,7 +787,9 @@ static void esp_do_nodma(ESPState *s) uint32_t cmdlen; int len, n; =20 - if (s->do_cmd) { + switch (esp_get_phase(s)) { + case STAT_MO: + case STAT_CD: /* Copy FIFO into cmdfifo */ n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); n =3D MIN(fifo8_num_free(&s->cmdfifo), n); @@ -816,10 +818,8 @@ static void esp_do_nodma(ESPState *s) s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); } - return; - } + break; =20 - switch (esp_get_phase(s)) { case STAT_DO: if (!s->current_req) { return; --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:08 +0000 Message-Id: <20240213194052.1162753-45-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 44/88] esp.c: convert esp_reg_write() do_cmd path to check for SCSI phase instead X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853589495100005 Content-Type: text/plain; charset="utf-8" Currently do_cmd is used to determine whether MESSAGE OUT and COMMAND phase= data is being accumulated in cmdfifo. Update esp_do_dma() to check directly for = these two SCSI phases instead. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-45-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 14759ada78..e679b1c39b 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -1207,7 +1207,7 @@ void esp_reg_write(ESPState *s, uint32_t saddr, uint6= 4_t val) s->rregs[ESP_RSTAT] &=3D ~STAT_TC; break; case ESP_FIFO: - if (s->do_cmd) { + if (esp_get_phase(s) =3D=3D STAT_MO || esp_get_phase(s) =3D=3D STA= T_CD) { if (!fifo8_is_full(&s->fifo)) { esp_fifo_push(&s->fifo, val); esp_fifo_push(&s->cmdfifo, fifo8_pop(&s->fifo)); --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:09 +0000 Message-Id: <20240213194052.1162753-46-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 45/88] esp.c: remove do_cmd from ESPState X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853615592100009 Content-Type: text/plain; charset="utf-8" Now that the accumulation of the CDB is handled by SCSI phase, there is no = need for a separate variable to control it. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-46-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index e679b1c39b..1f7dff4ca6 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -380,7 +380,6 @@ static void satn_pdma_cb(ESPState *s) =20 if (!esp_get_tc(s) && !fifo8_is_empty(&s->cmdfifo)) { s->cmdfifo_cdb_offset =3D 1; - s->do_cmd =3D 0; do_cmd(s); } } @@ -400,13 +399,11 @@ static void handle_satn(ESPState *s) cmdlen =3D get_cmd(s, ESP_CMDFIFO_SZ); if (cmdlen > 0) { s->cmdfifo_cdb_offset =3D 1; - s->do_cmd =3D 0; do_cmd(s); } else if (cmdlen =3D=3D 0) { if (s->dma) { esp_raise_drq(s); } - s->do_cmd =3D 1; /* Target present, but no cmd yet - switch to command phase */ s->rregs[ESP_RSEQ] =3D SEQ_CD; esp_set_phase(s, STAT_CD); @@ -428,13 +425,11 @@ static void handle_s_without_atn(ESPState *s) cmdlen =3D get_cmd(s, ESP_CMDFIFO_SZ); if (cmdlen > 0) { s->cmdfifo_cdb_offset =3D 0; - s->do_cmd =3D 0; do_cmd(s); } else if (cmdlen =3D=3D 0) { if (s->dma) { esp_raise_drq(s); } - s->do_cmd =3D 1; /* Target present, but no cmd yet - switch to command phase */ s->rregs[ESP_RSEQ] =3D SEQ_CD; esp_set_phase(s, STAT_CD); @@ -453,7 +448,6 @@ static void satn_stop_pdma_cb(ESPState *s) =20 if (!esp_get_tc(s) && !fifo8_is_empty(&s->cmdfifo)) { trace_esp_handle_satn_stop(fifo8_num_used(&s->cmdfifo)); - s->do_cmd =3D 1; s->cmdfifo_cdb_offset =3D 1; esp_set_phase(s, STAT_CD); s->rregs[ESP_RSTAT] |=3D STAT_TC; @@ -478,7 +472,6 @@ static void handle_satn_stop(ESPState *s) cmdlen =3D get_cmd(s, 1); if (cmdlen > 0) { trace_esp_handle_satn_stop(fifo8_num_used(&s->cmdfifo)); - s->do_cmd =3D 1; s->cmdfifo_cdb_offset =3D 1; esp_set_phase(s, STAT_MO); s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; @@ -488,7 +481,6 @@ static void handle_satn_stop(ESPState *s) if (s->dma) { esp_raise_drq(s); } - s->do_cmd =3D 1; /* Target present, switch to message out phase */ s->rregs[ESP_RSEQ] =3D SEQ_MO; esp_set_phase(s, STAT_MO); @@ -567,7 +559,6 @@ static void do_dma_pdma_cb(ESPState *s) } =20 /* Command has been received */ - s->do_cmd =3D 0; do_cmd(s); } else { /* @@ -669,7 +660,6 @@ static void esp_do_dma(ESPState *s) } =20 /* Command has been received */ - s->do_cmd =3D 0; do_cmd(s); } else { /* @@ -805,7 +795,6 @@ static void esp_do_nodma(ESPState *s) } =20 /* Command has been received */ - s->do_cmd =3D 0; do_cmd(s); } else { /* @@ -949,7 +938,6 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) int to_device =3D (esp_get_phase(s) =3D=3D STAT_DO); uint32_t dmalen =3D esp_get_tc(s); =20 - assert(!s->do_cmd); trace_esp_transfer_data(dmalen, s->ti_size); s->async_len =3D len; s->async_buf =3D scsi_req_get_buf(req); @@ -1012,7 +1000,6 @@ void esp_hard_reset(ESPState *s) fifo8_reset(&s->fifo); fifo8_reset(&s->cmdfifo); s->dma =3D 0; - s->do_cmd =3D 0; s->dma_cb =3D NULL; =20 s->rregs[ESP_CFG1] =3D 7; --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:10 +0000 Message-Id: <20240213194052.1162753-47-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 46/88] esp.c: untangle MESSAGE OUT and COMMAND phase logic in esp_do_dma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853768425100004 Content-Type: text/plain; charset="utf-8" This makes it clearer that ATN is asserted until the end of the next TI com= mand in the MESSAGE OUT phase. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-47-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 48 ++++++++++++++++++++++++++---------------------- 1 file changed, 26 insertions(+), 22 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 1f7dff4ca6..2f54fd1285 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -629,6 +629,31 @@ static void esp_do_dma(ESPState *s) =20 switch (esp_get_phase(s)) { case STAT_MO: + if (s->dma_memory_read) { + len =3D MIN(len, fifo8_num_free(&s->cmdfifo)); + s->dma_memory_read(s->dma_opaque, buf, len); + fifo8_push_all(&s->cmdfifo, buf, len); + esp_set_tc(s, esp_get_tc(s) - len); + s->cmdfifo_cdb_offset +=3D len; + } else { + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + s->cmdfifo_cdb_offset +=3D n; + } + + esp_set_pdma_cb(s, DO_DMA_PDMA_CB); + esp_raise_drq(s); + + /* ATN remains asserted until TC =3D=3D 0 */ + if (esp_get_tc(s) =3D=3D 0) { + esp_set_phase(s, STAT_CD); + s->rregs[ESP_RSEQ] =3D SEQ_CD; + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + } + break; + case STAT_CD: cmdlen =3D fifo8_num_used(&s->cmdfifo); trace_esp_do_dma(cmdlen, len); @@ -641,36 +666,15 @@ static void esp_do_dma(ESPState *s) n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); n =3D MIN(fifo8_num_free(&s->cmdfifo), n); fifo8_push_all(&s->cmdfifo, buf, n); - esp_set_tc(s, esp_get_tc(s) - n); =20 esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); - - /* Ensure we have received complete command after SATN and sto= p */ - if (esp_get_tc(s) || fifo8_is_empty(&s->cmdfifo)) { - return; - } } trace_esp_handle_ti_cmd(cmdlen); s->ti_size =3D 0; - if (esp_get_phase(s) =3D=3D STAT_CD) { - /* No command received */ - if (s->cmdfifo_cdb_offset =3D=3D fifo8_num_used(&s->cmdfifo)) { - return; - } - + if (esp_get_tc(s) =3D=3D 0) { /* Command has been received */ do_cmd(s); - } else { - /* - * Extra message out bytes received: update cmdfifo_cdb_offset - * and then switch to command phase - */ - s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); - esp_set_phase(s, STAT_CD); - s->rregs[ESP_RSEQ] =3D SEQ_CD; - s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); } break; =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707853744609474.6318602342085; Tue, 13 Feb 2024 11:49:04 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyhP-0003i8-5n; Tue, 13 Feb 2024 14:44:11 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyh7-0002hh-JU for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:11 +0000 Message-Id: <20240213194052.1162753-48-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 47/88] esp.c: untangle MESSAGE OUT and COMMAND phase logic in do_dma_pdma_cb() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853746324100003 Content-Type: text/plain; charset="utf-8" This makes it clearer that ATN is asserted until the end of the next TI com= mand in the MESSAGE OUT phase. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-48-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 66 ++++++++++++++++++++++++++++++++------------------- 1 file changed, 42 insertions(+), 24 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 2f54fd1285..7ab195f884 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -536,36 +536,30 @@ static void do_dma_pdma_cb(ESPState *s) { uint8_t buf[ESP_CMDFIFO_SZ]; int len; - uint32_t n; + uint32_t n, cmdlen; + + len =3D esp_get_tc(s); =20 switch (esp_get_phase(s)) { case STAT_MO: - case STAT_CD: - /* Copy FIFO into cmdfifo */ - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); - - /* Ensure we have received complete command after SATN and stop */ - if (esp_get_tc(s) || fifo8_is_empty(&s->cmdfifo)) { - return; + if (s->dma_memory_read) { + len =3D MIN(len, fifo8_num_free(&s->cmdfifo)); + s->dma_memory_read(s->dma_opaque, buf, len); + fifo8_push_all(&s->cmdfifo, buf, len); + esp_set_tc(s, esp_get_tc(s) - len); + s->cmdfifo_cdb_offset +=3D len; + } else { + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + s->cmdfifo_cdb_offset +=3D n; } =20 - s->ti_size =3D 0; - if (esp_get_phase(s) =3D=3D STAT_CD) { - /* No command received */ - if (s->cmdfifo_cdb_offset =3D=3D fifo8_num_used(&s->cmdfifo)) { - return; - } + esp_set_pdma_cb(s, DO_DMA_PDMA_CB); + esp_raise_drq(s); =20 - /* Command has been received */ - do_cmd(s); - } else { - /* - * Extra message out bytes received: update cmdfifo_cdb_offset - * and then switch to command phase - */ - s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); + /* ATN remains asserted until TC =3D=3D 0 */ + if (esp_get_tc(s) =3D=3D 0) { esp_set_phase(s, STAT_CD); s->rregs[ESP_RSEQ] =3D SEQ_CD; s->rregs[ESP_RINTR] |=3D INTR_BS; @@ -573,6 +567,30 @@ static void do_dma_pdma_cb(ESPState *s) } break; =20 + case STAT_CD: + cmdlen =3D fifo8_num_used(&s->cmdfifo); + trace_esp_do_dma(cmdlen, len); + if (s->dma_memory_read) { + len =3D MIN(len, fifo8_num_free(&s->cmdfifo)); + s->dma_memory_read(s->dma_opaque, buf, len); + fifo8_push_all(&s->cmdfifo, buf, len); + esp_set_tc(s, esp_get_tc(s) - len); + } else { + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + + esp_set_pdma_cb(s, DO_DMA_PDMA_CB); + esp_raise_drq(s); + } + trace_esp_handle_ti_cmd(cmdlen); + s->ti_size =3D 0; + if (esp_get_tc(s) =3D=3D 0) { + /* Command has been received */ + do_cmd(s); + } + break; + case STAT_DO: if (!s->current_req) { return; --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:12 +0000 Message-Id: <20240213194052.1162753-49-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 48/88] esp.c: untangle MESSAGE OUT and COMMAND phase logic in esp_do_nodma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853752427100001 Content-Type: text/plain; charset="utf-8" This makes it clearer that ATN is asserted until the end of the next TI com= mand in the MESSAGE OUT phase. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-49-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 40 +++++++++++++++++++++++----------------- 1 file changed, 23 insertions(+), 17 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 7ab195f884..81144ace83 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -801,6 +801,23 @@ static void esp_do_nodma(ESPState *s) =20 switch (esp_get_phase(s)) { case STAT_MO: + /* Copy FIFO into cmdfifo */ + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + s->cmdfifo_cdb_offset +=3D n; + + /* + * Extra message out bytes received: update cmdfifo_cdb_offset + * and then switch to command phase + */ + s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); + esp_set_phase(s, STAT_CD); + s->rregs[ESP_RSEQ] =3D SEQ_CD; + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + break; + case STAT_CD: /* Copy FIFO into cmdfifo */ n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); @@ -810,25 +827,14 @@ static void esp_do_nodma(ESPState *s) cmdlen =3D fifo8_num_used(&s->cmdfifo); trace_esp_handle_ti_cmd(cmdlen); s->ti_size =3D 0; - if (esp_get_phase(s) =3D=3D STAT_CD) { - /* No command received */ - if (s->cmdfifo_cdb_offset =3D=3D fifo8_num_used(&s->cmdfifo)) { - return; - } =20 - /* Command has been received */ - do_cmd(s); - } else { - /* - * Extra message out bytes received: update cmdfifo_cdb_offset - * and then switch to command phase - */ - s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); - esp_set_phase(s, STAT_CD); - s->rregs[ESP_RSEQ] =3D SEQ_CD; - s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); + /* No command received */ + if (s->cmdfifo_cdb_offset =3D=3D fifo8_num_used(&s->cmdfifo)) { + return; } + + /* Command has been received */ + do_cmd(s); break; =20 case STAT_DO: --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:13 +0000 Message-Id: <20240213194052.1162753-50-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 49/88] esp.c: move CMD_SELATN end of message phase detection to esp_do_dma() and do_dma_pdma_cb() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707853545402100001 Content-Type: text/plain; charset="utf-8" The special logic in satn_pdma_cb() is now no longer required since esp_do_= dma() can be used as a direct replacement. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-50-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 75 +++++++++++++++++++++++++------------------ include/hw/scsi/esp.h | 1 - 2 files changed, 43 insertions(+), 33 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 81144ace83..f8c20d0584 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -261,6 +261,9 @@ static int esp_select(ESPState *s) return 0; } =20 +static void esp_do_dma(ESPState *s); +static void esp_do_nodma(ESPState *s); + static uint32_t get_cmd(ESPState *s, uint32_t maxlen) { uint8_t buf[ESP_CMDFIFO_SZ]; @@ -368,45 +371,26 @@ static void do_cmd(ESPState *s) do_command_phase(s); } =20 -static void satn_pdma_cb(ESPState *s) -{ - uint8_t buf[ESP_FIFO_SZ]; - int n; - - /* Copy FIFO into cmdfifo */ - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); - - if (!esp_get_tc(s) && !fifo8_is_empty(&s->cmdfifo)) { - s->cmdfifo_cdb_offset =3D 1; - do_cmd(s); - } -} - static void handle_satn(ESPState *s) { - int32_t cmdlen; - if (s->dma && !s->dma_enabled) { s->dma_cb =3D handle_satn; return; } - esp_set_pdma_cb(s, SATN_PDMA_CB); + esp_set_pdma_cb(s, DO_DMA_PDMA_CB); if (esp_select(s) < 0) { return; } - cmdlen =3D get_cmd(s, ESP_CMDFIFO_SZ); - if (cmdlen > 0) { - s->cmdfifo_cdb_offset =3D 1; - do_cmd(s); - } else if (cmdlen =3D=3D 0) { - if (s->dma) { - esp_raise_drq(s); + + esp_set_phase(s, STAT_MO); + + if (s->dma) { + esp_do_dma(s); + } else { + if (get_cmd(s, ESP_CMDFIFO_SZ)) { + s->cmdfifo_cdb_offset =3D 1; + do_cmd(s); } - /* Target present, but no cmd yet - switch to command phase */ - s->rregs[ESP_RSEQ] =3D SEQ_CD; - esp_set_phase(s, STAT_CD); } } =20 @@ -558,6 +542,21 @@ static void do_dma_pdma_cb(ESPState *s) esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); =20 + switch (s->rregs[ESP_CMD]) { + case CMD_SELATN | CMD_DMA: + if (fifo8_num_used(&s->cmdfifo) >=3D 1) { + /* First byte received, switch to command phase */ + esp_set_phase(s, STAT_CD); + s->cmdfifo_cdb_offset =3D 1; + + if (fifo8_num_used(&s->cmdfifo) > 1) { + /* Process any additional command phase data */ + esp_do_dma(s); + } + } + break; + } + /* ATN remains asserted until TC =3D=3D 0 */ if (esp_get_tc(s) =3D=3D 0) { esp_set_phase(s, STAT_CD); @@ -663,6 +662,21 @@ static void esp_do_dma(ESPState *s) esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); =20 + switch (s->rregs[ESP_CMD]) { + case CMD_SELATN | CMD_DMA: + if (fifo8_num_used(&s->cmdfifo) >=3D 1) { + /* First byte received, switch to command phase */ + esp_set_phase(s, STAT_CD); + s->cmdfifo_cdb_offset =3D 1; + + if (fifo8_num_used(&s->cmdfifo) > 1) { + /* Process any additional command phase data */ + esp_do_dma(s); + } + } + break; + } + /* ATN remains asserted until TC =3D=3D 0 */ if (esp_get_tc(s) =3D=3D 0) { esp_set_phase(s, STAT_CD); @@ -890,9 +904,6 @@ static void esp_do_nodma(ESPState *s) static void esp_pdma_cb(ESPState *s) { switch (s->pdma_cb) { - case SATN_PDMA_CB: - satn_pdma_cb(s); - break; case SATN_STOP_PDMA_CB: satn_stop_pdma_cb(s); break; diff --git a/include/hw/scsi/esp.h b/include/hw/scsi/esp.h index b727181da9..9945645837 100644 --- a/include/hw/scsi/esp.h +++ b/include/hw/scsi/esp.h @@ -152,7 +152,6 @@ struct SysBusESPState { =20 /* PDMA callbacks */ enum pdma_cb { - SATN_PDMA_CB =3D 0, SATN_STOP_PDMA_CB =3D 2, WRITE_RESPONSE_PDMA_CB =3D 3, DO_DMA_PDMA_CB =3D 4 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854994729201.52190395341188; Tue, 13 Feb 2024 12:09:54 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz0X-0004f6-O4; 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bh=uJXGwrxSXVhXmHfs4lrUdgtZdqpD1CNQpU7RxspzTMQ=; b=kN8fwL0BF26nKu/V9iFgQ4B4UZ PgKoEarj5e91t2TlIYsyC1e1W83nf7rI5FqVtlb19wdg+9lIvHQDbNBPCCN2z4KjBzxX+0Z4Icd8m hIfjUoiwd9tDB37N+Tr88bb6b06tXB6EwlzV0En2GxnGd1YaAQ56UfRCSta0iUkaORxEw8SoerQ/P 934bKwY4tTv41oe1OESFKzzqgm50n84V1LsqI9fMlJZp4grHif+1nhatUbFRREZkOj1pJr42U4cpD c/9zDNr3tEK9jXYd9mK643rD3ck9fOz7w9mCUhdt8cGsRxMXFLhBARM3bgBPVqw6Yp1hRdOiDA0p5 hVT+OrGgC8skaTZA/Fvji/WYPLf0XPa+Mu/IYzjqzR+uKHVP1sJjNsNthwcPRkgVnY87rzIPwyq1T X2dYMGTkwFZhTLDhuYOqhECTcK236OwPRmgEjcnymki2vi9SKi5oDu8DTjurkPqm39nv5ipcZ2vU4 Pk9zbsfHVw3Ky8ONO9Z43LTThsxn/K6nSDx3+sytarsOXwa8gzbqdJKbBmMDeWAlvVDY65v/ctuOr CSfxvFxPyiNcvgwoEFGo654uCpCEewpdmrheAl43lIRE1fVQuIf2T/P20tZIRv8qqx7lxVay9xhrv m/rw20IE3YwEA06Pnp7u8P5rrvNpiAwmWtkO8QNVA=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:14 +0000 Message-Id: <20240213194052.1162753-51-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 50/88] esp.c: move CMD_TI end of message phase detection to esp_do_dma() and do_dma_pdma_cb() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854995895100003 Content-Type: text/plain; charset="utf-8" The existing check for TC =3D=3D 0 is only valid during a TI command. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-51-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 32 ++++++++++++++++++-------------- 1 file changed, 18 insertions(+), 14 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index f8c20d0584..9f787d12a8 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -555,14 +555,16 @@ static void do_dma_pdma_cb(ESPState *s) } } break; - } =20 - /* ATN remains asserted until TC =3D=3D 0 */ - if (esp_get_tc(s) =3D=3D 0) { - esp_set_phase(s, STAT_CD); - s->rregs[ESP_RSEQ] =3D SEQ_CD; - s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); + case CMD_TI | CMD_DMA: + /* ATN remains asserted until TC =3D=3D 0 */ + if (esp_get_tc(s) =3D=3D 0) { + esp_set_phase(s, STAT_CD); + s->rregs[ESP_RSEQ] =3D SEQ_CD; + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + } + break; } break; =20 @@ -675,14 +677,16 @@ static void esp_do_dma(ESPState *s) } } break; - } =20 - /* ATN remains asserted until TC =3D=3D 0 */ - if (esp_get_tc(s) =3D=3D 0) { - esp_set_phase(s, STAT_CD); - s->rregs[ESP_RSEQ] =3D SEQ_CD; - s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); + case CMD_TI | CMD_DMA: + /* ATN remains asserted until TC =3D=3D 0 */ + if (esp_get_tc(s) =3D=3D 0) { + esp_set_phase(s, STAT_CD); + s->rregs[ESP_RSEQ] =3D SEQ_CD; + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + } + break; } break; =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854545177930.8405690497524; Tue, 13 Feb 2024 12:02:25 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyxk-00014r-3w; Tue, 13 Feb 2024 15:01:04 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyxX-0000z9-23 for qemu-devel@nongnu.org; Tue, 13 Feb 2024 15:00:54 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyxR-0001n2-N0 for qemu-devel@nongnu.org; Tue, 13 Feb 2024 15:00:48 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZygR-0008m4-QI; Tue, 13 Feb 2024 19:43:15 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=9iDD6O2+jvA94mMNo3uokhjxaw5j/YMMMk4z58jg9zA=; b=hkJhKQjkfeEk6pDivbHOejEVto IV+rMN4qQZQsqTxNNqihK8CWjXYTvdIvhEHVMyVsHK4Pbci/509Ama6wSru8pRWku/iAK2O1qqp35 tnxVT4p0e0bOOrssZhfRY3oBrO2WVvsClM9wFvyjHnwFM85gAiuANKEilQmw1CiBPGXF2WK//umKj 3GTzVgEivz8lKngb52VTaZqCEZprK/1n/sUwGMaCmT4WLK4X3QnEJRfEtg/X2Yvqsd2M5epsGN+YZ rwMyB97J4MQZL/ANppoLPQnVmfJCAtkW0UG8zaDGcOXSXKYLd4DU7f6jzPE8hBfuISyHSkpQ0YPAE cBezeeBNI7K0R+r7CR8vcaXM4O4eLkXINKlyNIflGWinBo/GrdKDPMPmnRVReKwZ0XXS25KQmpaDe 6ph7fXAfpIVvmBlLw2xyiq2mA8fLlXwLInNiJcUn+SPopa3whY5DBZozO18Zz7pdvYWeFy1HnKyoh 6QOx6TlSLcP0A+DFVMHAhDa0vaNIVZyOWRNM6YLpBTwBru/lqg06u25fnvNXOL2LAw5OhjAopzA8P TI30d3dfsJCa7o+j522ZMbNMeQXjhS7Ot+gunx34d6HQQHcc0uTP6TBz8+z+E5ejDuOGBJRxtfAHu VpFKpLBJmvbLSex51uwlQqLrwUylbU48vMIqdX2z0=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:15 +0000 Message-Id: <20240213194052.1162753-52-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 51/88] esp.c: don't use get_cmd() for CMD_SEL DMA commands X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854546551100001 Content-Type: text/plain; charset="utf-8" This can now be done using the existing logic in esp_do_dma() and do_dma_pd= ma_cb(). Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-52-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 9f787d12a8..3cf8b2b4eb 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -396,8 +396,6 @@ static void handle_satn(ESPState *s) =20 static void handle_s_without_atn(ESPState *s) { - int32_t cmdlen; - if (s->dma && !s->dma_enabled) { s->dma_cb =3D handle_s_without_atn; return; @@ -406,17 +404,17 @@ static void handle_s_without_atn(ESPState *s) if (esp_select(s) < 0) { return; } - cmdlen =3D get_cmd(s, ESP_CMDFIFO_SZ); - if (cmdlen > 0) { - s->cmdfifo_cdb_offset =3D 0; - do_cmd(s); - } else if (cmdlen =3D=3D 0) { - if (s->dma) { - esp_raise_drq(s); + + esp_set_phase(s, STAT_CD); + s->rregs[ESP_RSEQ] =3D SEQ_CD; + s->cmdfifo_cdb_offset =3D 0; + + if (s->dma) { + esp_do_dma(s); + } else { + if (get_cmd(s, ESP_CMDFIFO_SZ)) { + do_cmd(s); } - /* Target present, but no cmd yet - switch to command phase */ - s->rregs[ESP_RSEQ] =3D SEQ_CD; - esp_set_phase(s, STAT_CD); } } =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854972471472.92010136549686; Tue, 13 Feb 2024 12:09:32 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz0N-0004GO-Ny; Tue, 13 Feb 2024 15:03:47 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyyY-0002IE-UG for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:16 +0000 Message-Id: <20240213194052.1162753-53-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 52/88] esp.c: move CMD_SELATNS end of command logic to esp_do_dma() and do_dma_pdma_cb() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854973843100009 Content-Type: text/plain; charset="utf-8" The special logic in satn_stop_pdma_cb() is now no longer required since esp_do_dma() can be used as a direct replacement. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-53-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 82 +++++++++++++++++++++---------------------- include/hw/scsi/esp.h | 1 - 2 files changed, 41 insertions(+), 42 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 3cf8b2b4eb..29e3869173 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -418,54 +418,31 @@ static void handle_s_without_atn(ESPState *s) } } =20 -static void satn_stop_pdma_cb(ESPState *s) -{ - uint8_t buf[ESP_FIFO_SZ]; - int n; - - /* Copy FIFO into cmdfifo */ - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); - - if (!esp_get_tc(s) && !fifo8_is_empty(&s->cmdfifo)) { - trace_esp_handle_satn_stop(fifo8_num_used(&s->cmdfifo)); - s->cmdfifo_cdb_offset =3D 1; - esp_set_phase(s, STAT_CD); - s->rregs[ESP_RSTAT] |=3D STAT_TC; - s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; - s->rregs[ESP_RSEQ] =3D SEQ_CD; - esp_raise_irq(s); - } -} - static void handle_satn_stop(ESPState *s) { - int32_t cmdlen; - if (s->dma && !s->dma_enabled) { s->dma_cb =3D handle_satn_stop; return; } - esp_set_pdma_cb(s, SATN_STOP_PDMA_CB); + esp_set_pdma_cb(s, DO_DMA_PDMA_CB); if (esp_select(s) < 0) { return; } - cmdlen =3D get_cmd(s, 1); - if (cmdlen > 0) { - trace_esp_handle_satn_stop(fifo8_num_used(&s->cmdfifo)); - s->cmdfifo_cdb_offset =3D 1; - esp_set_phase(s, STAT_MO); - s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; - s->rregs[ESP_RSEQ] =3D SEQ_MO; - esp_raise_irq(s); - } else if (cmdlen =3D=3D 0) { - if (s->dma) { - esp_raise_drq(s); + + esp_set_phase(s, STAT_MO); + s->rregs[ESP_RSEQ] =3D SEQ_MO; + + if (s->dma) { + esp_do_dma(s); + } else { + if (get_cmd(s, 1)) { + trace_esp_handle_satn_stop(fifo8_num_used(&s->cmdfifo)); + + /* Raise command completion interrupt */ + s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; + s->rregs[ESP_RSEQ] =3D SEQ_MO; + esp_raise_irq(s); } - /* Target present, switch to message out phase */ - s->rregs[ESP_RSEQ] =3D SEQ_MO; - esp_set_phase(s, STAT_MO); } } =20 @@ -554,6 +531,19 @@ static void do_dma_pdma_cb(ESPState *s) } break; =20 + case CMD_SELATNS | CMD_DMA: + if (fifo8_num_used(&s->cmdfifo) =3D=3D 1) { + /* First byte received, stop in message out phase */ + esp_set_phase(s, STAT_CD); + s->cmdfifo_cdb_offset =3D 1; + + /* Raise command completion interrupt */ + s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; + s->rregs[ESP_RSEQ] =3D SEQ_CD; + esp_raise_irq(s); + } + break; + case CMD_TI | CMD_DMA: /* ATN remains asserted until TC =3D=3D 0 */ if (esp_get_tc(s) =3D=3D 0) { @@ -676,6 +666,19 @@ static void esp_do_dma(ESPState *s) } break; =20 + case CMD_SELATNS | CMD_DMA: + if (fifo8_num_used(&s->cmdfifo) =3D=3D 1) { + /* First byte received, stop in message out phase */ + esp_set_phase(s, STAT_CD); + s->cmdfifo_cdb_offset =3D 1; + + /* Raise command completion interrupt */ + s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; + s->rregs[ESP_RSEQ] =3D SEQ_CD; + esp_raise_irq(s); + } + break; + case CMD_TI | CMD_DMA: /* ATN remains asserted until TC =3D=3D 0 */ if (esp_get_tc(s) =3D=3D 0) { @@ -906,9 +909,6 @@ static void esp_do_nodma(ESPState *s) static void esp_pdma_cb(ESPState *s) { switch (s->pdma_cb) { - case SATN_STOP_PDMA_CB: - satn_stop_pdma_cb(s); - break; case WRITE_RESPONSE_PDMA_CB: write_response_pdma_cb(s); break; diff --git a/include/hw/scsi/esp.h b/include/hw/scsi/esp.h index 9945645837..a4b2ed115c 100644 --- a/include/hw/scsi/esp.h +++ b/include/hw/scsi/esp.h @@ -152,7 +152,6 @@ struct SysBusESPState { =20 /* PDMA callbacks */ enum pdma_cb { - SATN_STOP_PDMA_CB =3D 2, WRITE_RESPONSE_PDMA_CB =3D 3, DO_DMA_PDMA_CB =3D 4 }; --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:17 +0000 Message-Id: <20240213194052.1162753-54-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 53/88] esp.c: replace do_dma_pdma_cb() with esp_do_dma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854713117100001 Content-Type: text/plain; charset="utf-8" Now that the DMA logic is identical between do_dma_pdma_cb() and esp_do_dma= () we can replace do_dma_pdma_cb() with esp_do_dma(). Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-54-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 138 +------------------------------------------------- 1 file changed, 1 insertion(+), 137 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 29e3869173..f69b2709fc 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -491,141 +491,6 @@ static void esp_dma_ti_check(ESPState *s) } } =20 -static void do_dma_pdma_cb(ESPState *s) -{ - uint8_t buf[ESP_CMDFIFO_SZ]; - int len; - uint32_t n, cmdlen; - - len =3D esp_get_tc(s); - - switch (esp_get_phase(s)) { - case STAT_MO: - if (s->dma_memory_read) { - len =3D MIN(len, fifo8_num_free(&s->cmdfifo)); - s->dma_memory_read(s->dma_opaque, buf, len); - fifo8_push_all(&s->cmdfifo, buf, len); - esp_set_tc(s, esp_get_tc(s) - len); - s->cmdfifo_cdb_offset +=3D len; - } else { - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); - s->cmdfifo_cdb_offset +=3D n; - } - - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); - esp_raise_drq(s); - - switch (s->rregs[ESP_CMD]) { - case CMD_SELATN | CMD_DMA: - if (fifo8_num_used(&s->cmdfifo) >=3D 1) { - /* First byte received, switch to command phase */ - esp_set_phase(s, STAT_CD); - s->cmdfifo_cdb_offset =3D 1; - - if (fifo8_num_used(&s->cmdfifo) > 1) { - /* Process any additional command phase data */ - esp_do_dma(s); - } - } - break; - - case CMD_SELATNS | CMD_DMA: - if (fifo8_num_used(&s->cmdfifo) =3D=3D 1) { - /* First byte received, stop in message out phase */ - esp_set_phase(s, STAT_CD); - s->cmdfifo_cdb_offset =3D 1; - - /* Raise command completion interrupt */ - s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; - s->rregs[ESP_RSEQ] =3D SEQ_CD; - esp_raise_irq(s); - } - break; - - case CMD_TI | CMD_DMA: - /* ATN remains asserted until TC =3D=3D 0 */ - if (esp_get_tc(s) =3D=3D 0) { - esp_set_phase(s, STAT_CD); - s->rregs[ESP_RSEQ] =3D SEQ_CD; - s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); - } - break; - } - break; - - case STAT_CD: - cmdlen =3D fifo8_num_used(&s->cmdfifo); - trace_esp_do_dma(cmdlen, len); - if (s->dma_memory_read) { - len =3D MIN(len, fifo8_num_free(&s->cmdfifo)); - s->dma_memory_read(s->dma_opaque, buf, len); - fifo8_push_all(&s->cmdfifo, buf, len); - esp_set_tc(s, esp_get_tc(s) - len); - } else { - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); - - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); - esp_raise_drq(s); - } - trace_esp_handle_ti_cmd(cmdlen); - s->ti_size =3D 0; - if (esp_get_tc(s) =3D=3D 0) { - /* Command has been received */ - do_cmd(s); - } - break; - - case STAT_DO: - if (!s->current_req) { - return; - } - /* Copy FIFO data to device */ - len =3D MIN(s->async_len, ESP_FIFO_SZ); - len =3D MIN(len, fifo8_num_used(&s->fifo)); - n =3D esp_fifo_pop_buf(&s->fifo, s->async_buf, len); - s->async_buf +=3D n; - s->async_len -=3D n; - s->ti_size +=3D n; - - if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - /* Defer until the scsi layer has completed */ - scsi_req_continue(s->current_req); - return; - } - - esp_dma_ti_check(s); - break; - - case STAT_DI: - if (!s->current_req) { - return; - } - /* Copy device data to FIFO */ - len =3D MIN(s->async_len, esp_get_tc(s)); - len =3D MIN(len, fifo8_num_free(&s->fifo)); - fifo8_push_all(&s->fifo, s->async_buf, len); - s->async_buf +=3D len; - s->async_len -=3D len; - s->ti_size -=3D len; - esp_set_tc(s, esp_get_tc(s) - len); - - if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - /* Defer until the scsi layer has completed */ - scsi_req_continue(s->current_req); - s->data_in_ready =3D false; - return; - } - - esp_dma_ti_check(s); - break; - } -} - static void esp_do_dma(ESPState *s) { uint32_t len, cmdlen; @@ -669,7 +534,6 @@ static void esp_do_dma(ESPState *s) case CMD_SELATNS | CMD_DMA: if (fifo8_num_used(&s->cmdfifo) =3D=3D 1) { /* First byte received, stop in message out phase */ - esp_set_phase(s, STAT_CD); s->cmdfifo_cdb_offset =3D 1; =20 /* Raise command completion interrupt */ @@ -913,7 +777,7 @@ static void esp_pdma_cb(ESPState *s) write_response_pdma_cb(s); break; case DO_DMA_PDMA_CB: - do_dma_pdma_cb(s); + esp_do_dma(s); break; default: g_assert_not_reached(); --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854528162191.71578544936574; Tue, 13 Feb 2024 12:02:08 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyy9-0001XT-6o; Tue, 13 Feb 2024 15:01:34 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyxt-0001Rg-A0 for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:18 +0000 Message-Id: <20240213194052.1162753-55-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 54/88] esp.c: move CMD_ICCS command logic to esp_do_dma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854528493100001 Content-Type: text/plain; charset="utf-8" The special logic in write_response_pdma_cb() is now no longer required sin= ce esp_do_dma() can be used as a direct replacement. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-55-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 82 ++++++++++++++++++++++++++++++------------- include/hw/scsi/esp.h | 1 - 2 files changed, 57 insertions(+), 26 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index f69b2709fc..c6e5ddd537 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -446,40 +446,23 @@ static void handle_satn_stop(ESPState *s) } } =20 -static void write_response_pdma_cb(ESPState *s) -{ - esp_set_phase(s, STAT_ST); - s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; - s->rregs[ESP_RSEQ] =3D SEQ_CD; - esp_raise_irq(s); -} - static void write_response(ESPState *s) { uint8_t buf[2]; =20 trace_esp_write_response(s->status); =20 - buf[0] =3D s->status; - buf[1] =3D 0; - if (s->dma) { - if (s->dma_memory_write) { - s->dma_memory_write(s->dma_opaque, buf, 2); - esp_set_phase(s, STAT_ST); - s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; - s->rregs[ESP_RSEQ] =3D SEQ_CD; - } else { - esp_set_pdma_cb(s, WRITE_RESPONSE_PDMA_CB); - esp_raise_drq(s); - return; - } + esp_do_dma(s); } else { + buf[0] =3D s->status; + buf[1] =3D 0; + fifo8_reset(&s->fifo); fifo8_push_all(&s->fifo, buf, 2); s->rregs[ESP_RFLAGS] =3D 2; + esp_raise_irq(s); } - esp_raise_irq(s); } =20 static void esp_dma_ti_check(ESPState *s) @@ -673,6 +656,58 @@ static void esp_do_dma(ESPState *s) esp_dma_ti_check(s); } break; + + case STAT_ST: + switch (s->rregs[ESP_CMD]) { + case CMD_ICCS | CMD_DMA: + len =3D MIN(len, 1); + + if (len) { + buf[0] =3D s->status; + + if (s->dma_memory_write) { + s->dma_memory_write(s->dma_opaque, buf, len); + esp_set_tc(s, esp_get_tc(s) - len); + } else { + fifo8_push_all(&s->fifo, buf, len); + esp_set_tc(s, esp_get_tc(s) - len); + } + + esp_set_phase(s, STAT_MI); + + if (esp_get_tc(s) > 0) { + /* Process any message in phase data */ + esp_do_dma(s); + } + } + break; + } + break; + + case STAT_MI: + switch (s->rregs[ESP_CMD]) { + case CMD_ICCS | CMD_DMA: + len =3D MIN(len, 1); + + if (len) { + buf[0] =3D 0; + + if (s->dma_memory_write) { + s->dma_memory_write(s->dma_opaque, buf, len); + esp_set_tc(s, esp_get_tc(s) - len); + } else { + fifo8_push_all(&s->fifo, buf, len); + esp_set_tc(s, esp_get_tc(s) - len); + } + + /* Raise end of command interrupt */ + s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; + s->rregs[ESP_RSEQ] =3D SEQ_CD; + esp_raise_irq(s); + } + break; + } + break; } } =20 @@ -773,9 +808,6 @@ static void esp_do_nodma(ESPState *s) static void esp_pdma_cb(ESPState *s) { switch (s->pdma_cb) { - case WRITE_RESPONSE_PDMA_CB: - write_response_pdma_cb(s); - break; case DO_DMA_PDMA_CB: esp_do_dma(s); break; diff --git a/include/hw/scsi/esp.h b/include/hw/scsi/esp.h index a4b2ed115c..0207fdd7a6 100644 --- a/include/hw/scsi/esp.h +++ b/include/hw/scsi/esp.h @@ -152,7 +152,6 @@ struct SysBusESPState { =20 /* PDMA callbacks */ enum pdma_cb { - WRITE_RESPONSE_PDMA_CB =3D 3, DO_DMA_PDMA_CB =3D 4 }; =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:19 +0000 Message-Id: <20240213194052.1162753-56-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 55/88] esp.c: always use esp_do_dma() in pdma_cb() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707855162301100005 Content-Type: text/plain; charset="utf-8" There is now only a single implementation contained within esp_do_dma() so call it directly. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-56-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index c6e5ddd537..bdbdb209f7 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -807,13 +807,7 @@ static void esp_do_nodma(ESPState *s) =20 static void esp_pdma_cb(ESPState *s) { - switch (s->pdma_cb) { - case DO_DMA_PDMA_CB: - esp_do_dma(s); - break; - default: - g_assert_not_reached(); - } + esp_do_dma(s); } =20 void esp_command_complete(SCSIRequest *req, size_t resid) --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854682009729.1446324513483; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:20 +0000 Message-Id: <20240213194052.1162753-57-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 56/88] esp.c: remove unused PDMA callback implementation X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854683004100004 Content-Type: text/plain; charset="utf-8" Note that this is a migration break for the q800 machine because the extra = PDMA information is no longer included. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-57-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 55 ++++--------------------------------------- include/hw/scsi/esp.h | 6 ----- 2 files changed, 5 insertions(+), 56 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index bdbdb209f7..5061c9d5a1 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -223,11 +223,6 @@ static void esp_pdma_write(ESPState *s, uint8_t val) esp_set_tc(s, dmalen); } =20 -static void esp_set_pdma_cb(ESPState *s, enum pdma_cb cb) -{ - s->pdma_cb =3D cb; -} - static int esp_select(ESPState *s) { int target; @@ -377,7 +372,7 @@ static void handle_satn(ESPState *s) s->dma_cb =3D handle_satn; return; } - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); + if (esp_select(s) < 0) { return; } @@ -400,7 +395,7 @@ static void handle_s_without_atn(ESPState *s) s->dma_cb =3D handle_s_without_atn; return; } - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); + if (esp_select(s) < 0) { return; } @@ -424,7 +419,7 @@ static void handle_satn_stop(ESPState *s) s->dma_cb =3D handle_satn_stop; return; } - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); + if (esp_select(s) < 0) { return; } @@ -497,7 +492,6 @@ static void esp_do_dma(ESPState *s) s->cmdfifo_cdb_offset +=3D n; } =20 - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); =20 switch (s->rregs[ESP_CMD]) { @@ -551,7 +545,6 @@ static void esp_do_dma(ESPState *s) n =3D MIN(fifo8_num_free(&s->cmdfifo), n); fifo8_push_all(&s->cmdfifo, buf, n); =20 - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); } trace_esp_handle_ti_cmd(cmdlen); @@ -597,7 +590,6 @@ static void esp_do_dma(ESPState *s) s->async_len -=3D n; s->ti_size +=3D n; =20 - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); =20 if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { @@ -644,7 +636,6 @@ static void esp_do_dma(ESPState *s) s->async_len -=3D len; s->ti_size -=3D len; esp_set_tc(s, esp_get_tc(s) - len); - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); =20 if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { @@ -805,11 +796,6 @@ static void esp_do_nodma(ESPState *s) } } =20 -static void esp_pdma_cb(ESPState *s) -{ - esp_do_dma(s); -} - void esp_command_complete(SCSIRequest *req, size_t resid) { ESPState *s =3D req->hba_private; @@ -1229,33 +1215,6 @@ static int esp_post_load(void *opaque, int version_i= d) return 0; } =20 -/* - * PDMA (or pseudo-DMA) is only used on the Macintosh and requires the - * guest CPU to perform the transfers between the SCSI bus and memory - * itself. This is indicated by the dma_memory_read and dma_memory_write - * functions being NULL (in contrast to the ESP PCI device) whilst - * dma_enabled is still set. - */ - -static bool esp_pdma_needed(void *opaque) -{ - ESPState *s =3D ESP(opaque); - - return s->dma_memory_read =3D=3D NULL && s->dma_memory_write =3D=3D NU= LL && - s->dma_enabled; -} - -static const VMStateDescription vmstate_esp_pdma =3D { - .name =3D "esp/pdma", - .version_id =3D 0, - .minimum_version_id =3D 0, - .needed =3D esp_pdma_needed, - .fields =3D (const VMStateField[]) { - VMSTATE_UINT8(pdma_cb, ESPState), - VMSTATE_END_OF_LIST() - } -}; - const VMStateDescription vmstate_esp =3D { .name =3D "esp", .version_id =3D 6, @@ -1290,10 +1249,6 @@ const VMStateDescription vmstate_esp =3D { VMSTATE_UINT8_TEST(lun, ESPState, esp_is_version_6), VMSTATE_END_OF_LIST() }, - .subsections =3D (const VMStateDescription * const []) { - &vmstate_esp_pdma, - NULL - } }; =20 static void sysbus_esp_mem_write(void *opaque, hwaddr addr, @@ -1342,7 +1297,7 @@ static void sysbus_esp_pdma_write(void *opaque, hwadd= r addr, esp_pdma_write(s, val); break; } - esp_pdma_cb(s); + esp_do_dma(s); } =20 static uint64_t sysbus_esp_pdma_read(void *opaque, hwaddr addr, @@ -1363,7 +1318,7 @@ static uint64_t sysbus_esp_pdma_read(void *opaque, hw= addr addr, val =3D (val << 8) | esp_pdma_read(s); break; } - esp_pdma_cb(s); + esp_do_dma(s); return val; } =20 diff --git a/include/hw/scsi/esp.h b/include/hw/scsi/esp.h index 0207fdd7a6..6f942864a6 100644 --- a/include/hw/scsi/esp.h +++ b/include/hw/scsi/esp.h @@ -51,7 +51,6 @@ struct ESPState { ESPDMAMemoryReadWriteFunc dma_memory_write; void *dma_opaque; void (*dma_cb)(ESPState *s); - uint8_t pdma_cb; =20 uint8_t mig_version_id; =20 @@ -150,11 +149,6 @@ struct SysBusESPState { #define TCHI_FAS100A 0x4 #define TCHI_AM53C974 0x12 =20 -/* PDMA callbacks */ -enum pdma_cb { - DO_DMA_PDMA_CB =3D 4 -}; - void esp_dma_enable(ESPState *s, int irq, int level); void esp_request_cancelled(SCSIRequest *req); void esp_command_complete(SCSIRequest *req, size_t resid); --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:21 +0000 Message-Id: <20240213194052.1162753-58-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 57/88] esp.c: rename data_in_ready to to data_ready X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854743179100003 Content-Type: text/plain; charset="utf-8" This field is currently used to handle deferred interrupts for the DATA IN = phase but the code will soon be updated to do the same for the DATA OUT phase. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-58-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 8 ++++---- include/hw/scsi/esp.h | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 5061c9d5a1..73c723afcc 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -328,7 +328,7 @@ static void do_command_phase(ESPState *s) * Switch to DATA IN phase but wait until initial data xfer is * complete before raising the command completion interrupt */ - s->data_in_ready =3D false; + s->data_ready =3D false; esp_set_phase(s, STAT_DI); } else { esp_set_phase(s, STAT_DO); @@ -859,12 +859,12 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) s->async_len =3D len; s->async_buf =3D scsi_req_get_buf(req); =20 - if (!to_device && !s->data_in_ready) { + if (!to_device && !s->data_ready) { /* * Initial incoming data xfer is complete so raise command * completion interrupt */ - s->data_in_ready =3D true; + s->data_ready =3D true; s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); } @@ -1241,7 +1241,7 @@ const VMStateDescription vmstate_esp =3D { VMSTATE_UINT32_TEST(mig_cmdlen, ESPState, esp_is_before_version_5), VMSTATE_UINT32(do_cmd, ESPState), VMSTATE_UINT32_TEST(mig_dma_left, ESPState, esp_is_before_version_= 5), - VMSTATE_BOOL_TEST(data_in_ready, ESPState, esp_is_version_5), + VMSTATE_BOOL_TEST(data_ready, ESPState, esp_is_version_5), VMSTATE_UINT8_TEST(cmdfifo_cdb_offset, ESPState, esp_is_version_5), VMSTATE_FIFO8_TEST(fifo, ESPState, esp_is_version_5), VMSTATE_FIFO8_TEST(cmdfifo, ESPState, esp_is_version_5), diff --git a/include/hw/scsi/esp.h b/include/hw/scsi/esp.h index 6f942864a6..1036606943 100644 --- a/include/hw/scsi/esp.h +++ b/include/hw/scsi/esp.h @@ -40,7 +40,7 @@ struct ESPState { uint8_t lun; uint32_t do_cmd; =20 - bool data_in_ready; + bool data_ready; uint8_t ti_cmd; int dma_enabled; =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:22 +0000 Message-Id: <20240213194052.1162753-59-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 58/88] esp.c: separate logic based upon ESP command in esp_command_complete() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854949750100005 Content-Type: text/plain; charset="utf-8" The handling of the INTR_FC and INTR_BS bits is different depending upon the last command executed by the ESP. Note that currently INTR_FC is managed elsewhere, but that will change soon. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-59-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 73c723afcc..75538f5859 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -823,25 +823,27 @@ void esp_command_complete(SCSIRequest *req, size_t re= sid) * Switch to status phase. For non-DMA transfers from the target the l= ast * byte is still in the FIFO */ - esp_set_phase(s, STAT_ST); - if (s->ti_size =3D=3D 0) { - /* - * Transfer complete: force TC to zero just in case a TI command w= as - * requested for more data than the command returns (Solaris 8 does - * this) - */ - esp_set_tc(s, 0); - esp_dma_ti_check(s); - } else { + s->ti_size =3D 0; + + switch (s->rregs[ESP_CMD]) { + case CMD_SEL | CMD_DMA: + case CMD_SEL: + case CMD_SELATN | CMD_DMA: + case CMD_SELATN: /* - * Transfer truncated: raise INTR_BS to indicate early change of - * phase + * No data phase for sequencer command so raise deferred bus servi= ce + * interrupt */ s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); - s->ti_size =3D 0; + break; } =20 + /* Raise bus service interrupt to indicate change to STATUS phase */ + esp_set_phase(s, STAT_ST); + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + esp_lower_drq(s); + if (s->current_req) { scsi_req_unref(s->current_req); s->current_req =3D NULL; --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854994647280.51362647331825; Tue, 13 Feb 2024 12:09:54 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz0Q-0004NA-8X; Tue, 13 Feb 2024 15:03:50 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyz0-0002b7-BH for qemu-devel@nongnu.org; Tue, 13 Feb 2024 15:02:22 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyyy-000249-Mv for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:23 +0000 Message-Id: <20240213194052.1162753-60-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 59/88] esp.c: separate logic based upon ESP command in esp_transfer_data() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854995897100004 Content-Type: text/plain; charset="utf-8" The handling of the INTR_FC and INTR_BS bits is different depending upon the last command executed by the ESP. Note that currently INTR_FC is managed elsewhere, but that will change soon. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-60-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 32 ++++++++++++++++++++++++++------ 1 file changed, 26 insertions(+), 6 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 75538f5859..b6cf1b43db 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -862,13 +862,33 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) s->async_buf =3D scsi_req_get_buf(req); =20 if (!to_device && !s->data_ready) { - /* - * Initial incoming data xfer is complete so raise command - * completion interrupt - */ s->data_ready =3D true; - s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); + + switch (s->rregs[ESP_CMD]) { + case CMD_SEL | CMD_DMA: + case CMD_SEL: + case CMD_SELATN | CMD_DMA: + case CMD_SELATN: + case CMD_SELATNS | CMD_DMA: + case CMD_SELATNS: + /* + * Initial incoming data xfer is complete so raise command + * completion interrupt + */ + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + break; + + case CMD_TI | CMD_DMA: + case CMD_TI: + /* + * Bus service interrupt raised because of initial change to + * DATA phase + */ + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + break; + } } =20 /* --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854988454594.7725847080201; Tue, 13 Feb 2024 12:09:48 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz0X-0004eJ-6B; Tue, 13 Feb 2024 15:03:57 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyzd-0003Fd-Qu for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:24 +0000 Message-Id: <20240213194052.1162753-61-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 60/88] esp.c: use deferred interrupts for both DATA IN and DATA OUT phases X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854989878100007 Content-Type: text/plain; charset="utf-8" This brings DATA OUT transfers in line with DATA IN transfers by ensuring t= hat the guest visible function complete interrupt is only set once the SCSI lay= er has returned. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-61-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 35 ++++++++++++++++++----------------- 1 file changed, 18 insertions(+), 17 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index b6cf1b43db..d71465718c 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -248,10 +248,8 @@ static int esp_select(ESPState *s) =20 /* * Note that we deliberately don't raise the IRQ here: this will be do= ne - * either in do_command_phase() for DATA OUT transfers or by the defer= red - * IRQ mechanism in esp_transfer_data() for DATA IN transfers + * either in esp_transfer_data() or esp_command_complete() */ - s->rregs[ESP_RINTR] |=3D INTR_FC; s->rregs[ESP_RSEQ] =3D SEQ_CD; return 0; } @@ -321,20 +319,17 @@ static void do_command_phase(ESPState *s) datalen =3D scsi_req_enqueue(s->current_req); s->ti_size =3D datalen; fifo8_reset(&s->cmdfifo); + s->data_ready =3D false; if (datalen !=3D 0) { s->ti_cmd =3D 0; + /* + * Switch to DATA phase but wait until initial data xfer is + * complete before raising the command completion interrupt + */ if (datalen > 0) { - /* - * Switch to DATA IN phase but wait until initial data xfer is - * complete before raising the command completion interrupt - */ - s->data_ready =3D false; esp_set_phase(s, STAT_DI); } else { esp_set_phase(s, STAT_DO); - s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; - esp_raise_irq(s); - esp_lower_drq(s); } scsi_req_continue(s->current_req); return; @@ -832,9 +827,9 @@ void esp_command_complete(SCSIRequest *req, size_t resi= d) case CMD_SELATN: /* * No data phase for sequencer command so raise deferred bus servi= ce - * interrupt + * and function complete interrupt */ - s->rregs[ESP_RINTR] |=3D INTR_BS; + s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; break; } =20 @@ -854,14 +849,13 @@ void esp_command_complete(SCSIRequest *req, size_t re= sid) void esp_transfer_data(SCSIRequest *req, uint32_t len) { ESPState *s =3D req->hba_private; - int to_device =3D (esp_get_phase(s) =3D=3D STAT_DO); uint32_t dmalen =3D esp_get_tc(s); =20 trace_esp_transfer_data(dmalen, s->ti_size); s->async_len =3D len; s->async_buf =3D scsi_req_get_buf(req); =20 - if (!to_device && !s->data_ready) { + if (!s->data_ready) { s->data_ready =3D true; =20 switch (s->rregs[ESP_CMD]) { @@ -869,6 +863,13 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) case CMD_SEL: case CMD_SELATN | CMD_DMA: case CMD_SELATN: + /* + * Initial incoming data xfer is complete for sequencer command + * so raise deferred bus service and function complete interru= pt + */ + s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; + break; + case CMD_SELATNS | CMD_DMA: case CMD_SELATNS: /* @@ -876,7 +877,6 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) * completion interrupt */ s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); break; =20 case CMD_TI | CMD_DMA: @@ -886,9 +886,10 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) * DATA phase */ s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); break; } + + esp_raise_irq(s); } =20 /* --=20 2.39.2 From nobody Tue Nov 26 10:20:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707855178708567.4047714361899; Tue, 13 Feb 2024 12:12:58 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz0F-0003yT-Nb; Tue, 13 Feb 2024 15:03:40 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyyD-0001we-EY for qemu-devel@nongnu.org; Tue, 13 Feb 2024 15:01:35 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyyA-0001tR-Bi for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:25 +0000 Message-Id: <20240213194052.1162753-62-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 61/88] esp.c: remove DATA IN phase logic when reading from FIFO X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707855180378100003 Content-Type: text/plain; charset="utf-8" Whilst the FIFO is used a storage buffer for both DMA and non-DMA requests,= the loading and unloading is managed directly issuing commands to the ESP. As a result there is no need to manually invoke the non-DMA command handler. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-62-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index d71465718c..4c1ca63a57 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -1067,17 +1067,6 @@ uint64_t esp_reg_read(ESPState *s, uint32_t saddr) qemu_log_mask(LOG_UNIMP, "esp: PIO data read not implemented\n= "); s->rregs[ESP_FIFO] =3D 0; } else { - if (esp_get_phase(s) =3D=3D STAT_DI) { - if (s->ti_size) { - esp_do_nodma(s); - } else { - /* - * The last byte of a non-DMA transfer has been read o= ut - * of the FIFO so switch to status phase - */ - esp_set_phase(s, STAT_ST); - } - } s->rregs[ESP_FIFO] =3D esp_fifo_pop(&s->fifo); } val =3D s->rregs[ESP_FIFO]; --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:26 +0000 Message-Id: <20240213194052.1162753-63-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 62/88] esp.c: zero command register when TI command terminates due to phase change X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854851499100003 Content-Type: text/plain; charset="utf-8" This is the behaviour documented in the datasheet and allows the state mach= ine to correctly process multiple consecutive TI commands. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-63-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 4c1ca63a57..ccb8ad4bae 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -519,6 +519,7 @@ static void esp_do_dma(ESPState *s) /* ATN remains asserted until TC =3D=3D 0 */ if (esp_get_tc(s) =3D=3D 0) { esp_set_phase(s, STAT_CD); + s->rregs[ESP_CMD] =3D 0; s->rregs[ESP_RSEQ] =3D SEQ_CD; s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); @@ -717,6 +718,7 @@ static void esp_do_nodma(ESPState *s) */ s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); esp_set_phase(s, STAT_CD); + s->rregs[ESP_CMD] =3D 0; s->rregs[ESP_RSEQ] =3D SEQ_CD; s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); @@ -831,6 +833,11 @@ void esp_command_complete(SCSIRequest *req, size_t res= id) */ s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; break; + + case CMD_TI | CMD_DMA: + case CMD_TI: + s->rregs[ESP_CMD] =3D 0; + break; } =20 /* Raise bus service interrupt to indicate change to STATUS phase */ @@ -885,6 +892,7 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) * Bus service interrupt raised because of initial change to * DATA phase */ + s->rregs[ESP_CMD] =3D 0; s->rregs[ESP_RINTR] |=3D INTR_BS; break; } --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854865007138.01364629364252; Tue, 13 Feb 2024 12:07:45 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz07-0003se-9S; 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bh=AmLOTtmmzpqanLcUed+jgsCYVlRhvb8feYQvHXvDt9A=; b=UReSvDpJIQhQJRmYN7ql4pKDmB w0zM0UvtThCXeDuBMhNp4TWGNyyLCy3fyxkvfvJQEOtxRwN8H8z9MNyfxx1AJgUTSqDh3goN270Wj JXkovmLthD+uo2L41Ki6HOp6GTfu+0vsY4ONvqF9GARTH7aCfI1viiolQ10fDqNtd871HSGzz+8Oy b3Ey4npMdIC9JWslSL8wGRrxB4l0z7vgPXgIXiAZqhkfiGLcg1JQbXHttKi0oqC7W//XVEC/3mQeb Qs+Ks2ZiksDucj2cbdQ02v2WF1RbIwxnSbNg41zmb/Qfg5Z8lEaWd2XApEk+9YKYkCMSjtzEFqUGn lZ4YnPIFpAe3ipVlW+bZWOKFrY7T9a1lFUN//Pb5vMwJwfHM7JWOk+tM4EbS+VAwj4+YN5NXmUYhU WWsgMoYTz683yleYa1K0MHELwFKE4gY5DfMUqV8rpkhaEoo8UUr/mNl4BZRV/oWE5cZeA9GixROBI aaFIqVHKlqZzQzwE6x8G8NY+ImjHK1fxdsZ+vWhwWCutB0DBx5FxwC+yajnPOsHfDFXAs85b1aKw8 vryT2BYRBkk9xykB8BU944aQXmncL5GGP+89mK4jPpRr1Z3D8emRai3QdRV0zYjSanrU/QVstVEme r+P8Xb6ucuH1LWRu29B6qMdy36ka8vNJI0oArGaxc=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:27 +0000 Message-Id: <20240213194052.1162753-64-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 63/88] esp.c: remove unneeded ti_cmd field X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854865568100001 Content-Type: text/plain; charset="utf-8" According to the datasheet the previous ESP command remains in the ESP_CMD register, which caused a problem when consecutive TI commands were issued as it becomes impossible for the state machine to know when the first TI command finishes. This was the original reason for introducing the ti_cmd field which kept track of the last written command for this purpose. However closer reading of the datasheet shows that a TI command that terminates due to a change of SCSI target phase resets the ESP_CMD register to zero which solves this problem. Now that this has been fixed in the previous commit, remove the unneeded ti_cmd field and access the ESP_CMD register directly instead. Bump the vmstate_esp version to indicate that the ti_cmd field is no longer included. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-64-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 19 +++++++++++++------ include/hw/scsi/esp.h | 3 ++- 2 files changed, 15 insertions(+), 7 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index ccb8ad4bae..bcebd00831 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -321,7 +321,6 @@ static void do_command_phase(ESPState *s) fifo8_reset(&s->cmdfifo); s->data_ready =3D false; if (datalen !=3D 0) { - s->ti_cmd =3D 0; /* * Switch to DATA phase but wait until initial data xfer is * complete before raising the command completion interrupt @@ -908,12 +907,12 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) * async data transfer is delayed then s->dma is set incorrectly. */ =20 - if (s->ti_cmd =3D=3D (CMD_TI | CMD_DMA)) { + if (s->rregs[ESP_CMD] =3D=3D (CMD_TI | CMD_DMA)) { /* When the SCSI layer returns more data, raise deferred INTR_BS */ esp_dma_ti_check(s); =20 esp_do_dma(s); - } else if (s->ti_cmd =3D=3D CMD_TI) { + } else if (s->rregs[ESP_CMD] =3D=3D CMD_TI) { esp_do_nodma(s); } } @@ -927,7 +926,6 @@ static void handle_ti(ESPState *s) return; } =20 - s->ti_cmd =3D s->rregs[ESP_CMD]; if (s->dma) { dmalen =3D esp_get_tc(s); trace_esp_handle_ti(dmalen); @@ -1200,6 +1198,14 @@ static bool esp_is_version_6(void *opaque, int versi= on_id) return version_id >=3D 6; } =20 +static bool esp_is_between_version_5_and_6(void *opaque, int version_id) +{ + ESPState *s =3D ESP(opaque); + + version_id =3D MIN(version_id, s->mig_version_id); + return version_id >=3D 5 && version_id <=3D 6; +} + int esp_pre_save(void *opaque) { ESPState *s =3D ESP(object_resolve_path_component( @@ -1237,7 +1243,7 @@ static int esp_post_load(void *opaque, int version_id) =20 const VMStateDescription vmstate_esp =3D { .name =3D "esp", - .version_id =3D 6, + .version_id =3D 7, .minimum_version_id =3D 3, .post_load =3D esp_post_load, .fields =3D (const VMStateField[]) { @@ -1265,7 +1271,8 @@ const VMStateDescription vmstate_esp =3D { VMSTATE_UINT8_TEST(cmdfifo_cdb_offset, ESPState, esp_is_version_5), VMSTATE_FIFO8_TEST(fifo, ESPState, esp_is_version_5), VMSTATE_FIFO8_TEST(cmdfifo, ESPState, esp_is_version_5), - VMSTATE_UINT8_TEST(ti_cmd, ESPState, esp_is_version_5), + VMSTATE_UINT8_TEST(mig_ti_cmd, ESPState, + esp_is_between_version_5_and_6), VMSTATE_UINT8_TEST(lun, ESPState, esp_is_version_6), VMSTATE_END_OF_LIST() }, diff --git a/include/hw/scsi/esp.h b/include/hw/scsi/esp.h index 1036606943..39b416f538 100644 --- a/include/hw/scsi/esp.h +++ b/include/hw/scsi/esp.h @@ -41,7 +41,6 @@ struct ESPState { uint32_t do_cmd; =20 bool data_ready; - uint8_t ti_cmd; int dma_enabled; =20 uint32_t async_len; @@ -62,6 +61,8 @@ struct ESPState { uint8_t mig_ti_buf[ESP_FIFO_SZ]; uint8_t mig_cmdbuf[ESP_CMDFIFO_SZ]; uint32_t mig_cmdlen; + + uint8_t mig_ti_cmd; }; =20 #define TYPE_SYSBUS_ESP "sysbus-esp" --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854681183296.0051067411765; Tue, 13 Feb 2024 12:04:41 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyxk-00015P-Dv; Tue, 13 Feb 2024 15:01:04 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyxK-0000qY-RY for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:28 +0000 Message-Id: <20240213194052.1162753-65-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 64/88] esp.c: don't raise INTR_BS interrupt in DATA IN phase until TI command issued X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854683003100003 Content-Type: text/plain; charset="utf-8" In the case where a SCSI command with a DATA IN phase has been issued, the = host may preload the FIFO with unaligned bytes before issuing the main DMA trans= fer. When accumulating data in the FIFO don't raise the INTR_BS interrupt until = the TI command is issued, otherwise the unexpected interrupt can confuse the ho= st. In particular this is needed to prevent the MacOS Disk Utility from failing when switching non-DMA transfers to use esp_do_nodma(). Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-65-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index bcebd00831..dd6bf6f033 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -786,6 +786,11 @@ static void esp_do_nodma(ESPState *s) return; } =20 + /* If preloading the FIFO, defer until TI command issued */ + if (s->rregs[ESP_CMD] !=3D CMD_TI) { + return; + } + s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); break; --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854941898453.48848767076254; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:29 +0000 Message-Id: <20240213194052.1162753-66-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 65/88] esp.c: move non-DMA TI logic to separate esp_nodma_ti_dataout() function X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854943732100007 Content-Type: text/plain; charset="utf-8" This is to allow the logic to be moved during the next commit. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-66-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 51 +++++++++++++++++++++++++++++---------------------- 1 file changed, 29 insertions(+), 22 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index dd6bf6f033..97e48e9526 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -697,11 +697,38 @@ static void esp_do_dma(ESPState *s) } } =20 +static void esp_nodma_ti_dataout(ESPState *s) +{ + int len; + + if (!s->current_req) { + return; + } + if (s->async_len =3D=3D 0) { + /* Defer until data is available. */ + return; + } + len =3D MIN(s->async_len, ESP_FIFO_SZ); + len =3D MIN(len, fifo8_num_used(&s->fifo)); + esp_fifo_pop_buf(&s->fifo, s->async_buf, len); + s->async_buf +=3D len; + s->async_len -=3D len; + s->ti_size +=3D len; + + if (s->async_len =3D=3D 0) { + scsi_req_continue(s->current_req); + return; + } + + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); +} + static void esp_do_nodma(ESPState *s) { uint8_t buf[ESP_FIFO_SZ]; uint32_t cmdlen; - int len, n; + int n; =20 switch (esp_get_phase(s)) { case STAT_MO: @@ -743,27 +770,7 @@ static void esp_do_nodma(ESPState *s) break; =20 case STAT_DO: - if (!s->current_req) { - return; - } - if (s->async_len =3D=3D 0) { - /* Defer until data is available. */ - return; - } - len =3D MIN(s->async_len, ESP_FIFO_SZ); - len =3D MIN(len, fifo8_num_used(&s->fifo)); - esp_fifo_pop_buf(&s->fifo, s->async_buf, len); - s->async_buf +=3D len; - s->async_len -=3D len; - s->ti_size +=3D len; - - if (s->async_len =3D=3D 0) { - scsi_req_continue(s->current_req); - return; - } - - s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); + esp_nodma_ti_dataout(s); break; =20 case STAT_DI: --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:30 +0000 Message-Id: <20240213194052.1162753-67-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 66/88] esp.c: process non-DMA FIFO writes in esp_do_nodma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854971844100007 Content-Type: text/plain; charset="utf-8" Currently any write to the ESP FIFO in the MESSAGE OUT or COMMAND phases wi= ll manually raise the bus service interrupt. Instead of duplicating the interr= upt logic in esp_reg_write(), update esp_do_nodma() to correctly process incomi= ng FIFO data during the MESSAGE OUT and COMMAND phases. Part of this change is= to call esp_nodma_ti_dataout() from handle_ti() to ensure that the DATA OUT ph= ase FIFO transfer only occurs when executing a non-DMA TI command instead of for each byte entering the FIFO. One slight complication is that NextSTEP uses multiple TI commands to trans= fer the CDB one byte at a time (as opposed to loading the FIFO and using a sing= le TI command), so it is necessary to determine the expected length of the SCSI CDB being received. This is handled by the introduction of a new esp_cdb_length() function which returns the expected SCSI CDB length based upon the first command byte. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-67-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 121 +++++++++++++++++++++++++++++++++++--------------- 1 file changed, 86 insertions(+), 35 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 97e48e9526..5bb8cc4ea7 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -420,6 +420,7 @@ static void handle_satn_stop(ESPState *s) =20 esp_set_phase(s, STAT_MO); s->rregs[ESP_RSEQ] =3D SEQ_MO; + s->cmdfifo_cdb_offset =3D 0; =20 if (s->dma) { esp_do_dma(s); @@ -454,6 +455,22 @@ static void write_response(ESPState *s) } } =20 +static int esp_cdb_length(ESPState *s) +{ + const uint8_t *pbuf; + int cmdlen, len; + + cmdlen =3D fifo8_num_used(&s->cmdfifo); + if (cmdlen < s->cmdfifo_cdb_offset) { + return 0; + } + + pbuf =3D fifo8_peek_buf(&s->cmdfifo, cmdlen, NULL); + len =3D scsi_cdb_length((uint8_t *)&pbuf[s->cmdfifo_cdb_offset]); + + return len; +} + static void esp_dma_ti_check(ESPState *s) { if (esp_get_tc(s) =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { @@ -738,16 +755,40 @@ static void esp_do_nodma(ESPState *s) fifo8_push_all(&s->cmdfifo, buf, n); s->cmdfifo_cdb_offset +=3D n; =20 - /* - * Extra message out bytes received: update cmdfifo_cdb_offset - * and then switch to command phase - */ - s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); - esp_set_phase(s, STAT_CD); - s->rregs[ESP_CMD] =3D 0; - s->rregs[ESP_RSEQ] =3D SEQ_CD; - s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); + switch (s->rregs[ESP_CMD]) { + case CMD_SELATN: + if (fifo8_num_used(&s->cmdfifo) >=3D 1) { + /* First byte received, switch to command phase */ + esp_set_phase(s, STAT_CD); + s->cmdfifo_cdb_offset =3D 1; + + if (fifo8_num_used(&s->cmdfifo) > 1) { + /* Process any additional command phase data */ + esp_do_nodma(s); + } + } + break; + + case CMD_SELATNS: + if (fifo8_num_used(&s->cmdfifo) =3D=3D 1) { + /* First byte received, stop in message out phase */ + s->cmdfifo_cdb_offset =3D 1; + + /* Raise command completion interrupt */ + s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; + esp_raise_irq(s); + } + break; + + case CMD_TI: + /* ATN remains asserted until FIFO empty */ + s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); + esp_set_phase(s, STAT_CD); + s->rregs[ESP_CMD] =3D 0; + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + break; + } break; =20 case STAT_CD: @@ -756,21 +797,40 @@ static void esp_do_nodma(ESPState *s) n =3D MIN(fifo8_num_free(&s->cmdfifo), n); fifo8_push_all(&s->cmdfifo, buf, n); =20 - cmdlen =3D fifo8_num_used(&s->cmdfifo); - trace_esp_handle_ti_cmd(cmdlen); - s->ti_size =3D 0; + switch (s->rregs[ESP_CMD]) { + case CMD_TI: + cmdlen =3D fifo8_num_used(&s->cmdfifo); + trace_esp_handle_ti_cmd(cmdlen); + + /* CDB may be transferred in one or more TI commands */ + if (esp_cdb_length(s) && esp_cdb_length(s) =3D=3D + fifo8_num_used(&s->cmdfifo) - s->cmdfifo_cdb_offset) { + /* Command has been received */ + do_cmd(s); + } else { + /* + * If data was transferred from the FIFO then raise bus + * service interrupt to indicate transfer complete. Otherw= ise + * defer until the next FIFO write. + */ + if (n) { + /* Raise interrupt to indicate transfer complete */ + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + } + } + break; =20 - /* No command received */ - if (s->cmdfifo_cdb_offset =3D=3D fifo8_num_used(&s->cmdfifo)) { - return; + case CMD_SEL: + case CMD_SELATN: + /* FIFO already contain entire CDB */ + do_cmd(s); + break; } - - /* Command has been received */ - do_cmd(s); break; =20 case STAT_DO: - esp_nodma_ti_dataout(s); + /* Accumulate data in FIFO until non-DMA TI is executed */ break; =20 case STAT_DI: @@ -945,6 +1005,10 @@ static void handle_ti(ESPState *s) } else { trace_esp_handle_ti(s->ti_size); esp_do_nodma(s); + + if (esp_get_phase(s) =3D=3D STAT_DO) { + esp_nodma_ti_dataout(s); + } } } =20 @@ -1141,23 +1205,10 @@ void esp_reg_write(ESPState *s, uint32_t saddr, uin= t64_t val) s->rregs[ESP_RSTAT] &=3D ~STAT_TC; break; case ESP_FIFO: - if (esp_get_phase(s) =3D=3D STAT_MO || esp_get_phase(s) =3D=3D STA= T_CD) { - if (!fifo8_is_full(&s->fifo)) { - esp_fifo_push(&s->fifo, val); - esp_fifo_push(&s->cmdfifo, fifo8_pop(&s->fifo)); - } - - /* - * If any unexpected message out/command phase data is - * transferred using non-DMA, raise the interrupt - */ - if (s->rregs[ESP_CMD] =3D=3D CMD_TI) { - s->rregs[ESP_RINTR] |=3D INTR_BS; - esp_raise_irq(s); - } - } else { + if (!fifo8_is_full(&s->fifo)) { esp_fifo_push(&s->fifo, val); } + esp_do_nodma(s); break; case ESP_CMD: s->rregs[saddr] =3D val; --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707855160530830.3933919491027; Tue, 13 Feb 2024 12:12:40 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyzt-0003Y2-N0; 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bh=eJ1paP8kPRvhyZEgQSLmYnxE9wIiYP8JdAt5y+q0tAc=; b=kqaz/UC/I7sJibyd6dqU9JPSbc QZO2glXTsiw8OwbELYWRBLZVGZw2TzQO6byCNBzxJzW90BRl06PmldY0gk8UoW9yLqy3HO6QdDJLX KG1UhBLIn1K9BHaRY05/6b1G8JKqdyhYBSHh7TYgFQUbHbgYsD/pTbQXVEE/t9KL3zQoCkYMJYdi3 iDHfTRj2srhJ/Yp7iR2tTr7osoHn/IjW+xNP5tX3jYZktLQfyWyzYwZ/4ep+7eZIBG+baH0nfdfbW sEQTJoBre2yGEZ0oQXQqE+rMAF4jswNYs0s8f0nqS66VLICoOaEDCzGnmjnGr0cJlyKtHv5cojYAc EeSBMJRPpBUSdY586awvIZ2rWO/AxUxLFXvZCjv/8ZJRLMu4hWb2iPPEdHOyeZQa17g/gvvhQHPOk FPKpBH6L7g/nJYrBOaQ5f5XJCPUdHSMd2BG/dXf0ZeYtiXQx+SH/qmJ/S+LDlG3gYRanopuCd8y4M oqn+dK8p1bfcUOKvNUO6J9oHlxPTil1evE5HwN3Yqw4yHQEXcwya3hl6/BfixtfSZx03H9oVJ1/Qq KNwElBKGLgvjtMvdUA4CNAf1BJhTGQlLghj0I+bUHsA/U3dTxGk3MjnyJbcJfXzUD2z9EbYHyM+TQ vsTEzjgPAQW4foF6Zbk70Uy6RTfol7AbMDx2xfv1U=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:31 +0000 Message-Id: <20240213194052.1162753-68-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 67/88] esp.c: replace get_cmd() with esp_do_nodma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707855162310100006 Content-Type: text/plain; charset="utf-8" Now that the esp_do_nodma() state machine correctly handles incoming FIFO data, all remaining users of get_cmd() can be replaced with esp_do_nodma() and the get_cmd() function removed completely. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-68-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 54 ++++----------------------------------------------- 1 file changed, 4 insertions(+), 50 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 5bb8cc4ea7..277eb8647b 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -257,40 +257,6 @@ static int esp_select(ESPState *s) static void esp_do_dma(ESPState *s); static void esp_do_nodma(ESPState *s); =20 -static uint32_t get_cmd(ESPState *s, uint32_t maxlen) -{ - uint8_t buf[ESP_CMDFIFO_SZ]; - uint32_t dmalen, n; - int target; - - target =3D s->wregs[ESP_WBUSID] & BUSID_DID; - if (s->dma) { - dmalen =3D MIN(esp_get_tc(s), maxlen); - if (dmalen =3D=3D 0) { - return 0; - } - if (s->dma_memory_read) { - s->dma_memory_read(s->dma_opaque, buf, dmalen); - dmalen =3D MIN(fifo8_num_free(&s->cmdfifo), dmalen); - fifo8_push_all(&s->cmdfifo, buf, dmalen); - esp_set_tc(s, esp_get_tc(s) - dmalen); - } else { - return 0; - } - } else { - dmalen =3D MIN(fifo8_num_used(&s->fifo), maxlen); - if (dmalen =3D=3D 0) { - return 0; - } - n =3D esp_fifo_pop_buf(&s->fifo, buf, dmalen); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); - } - trace_esp_get_cmd(dmalen, target); - - return dmalen; -} - static void do_command_phase(ESPState *s) { uint32_t cmdlen; @@ -376,10 +342,7 @@ static void handle_satn(ESPState *s) if (s->dma) { esp_do_dma(s); } else { - if (get_cmd(s, ESP_CMDFIFO_SZ)) { - s->cmdfifo_cdb_offset =3D 1; - do_cmd(s); - } + esp_do_nodma(s); } } =20 @@ -401,9 +364,7 @@ static void handle_s_without_atn(ESPState *s) if (s->dma) { esp_do_dma(s); } else { - if (get_cmd(s, ESP_CMDFIFO_SZ)) { - do_cmd(s); - } + esp_do_nodma(s); } } =20 @@ -425,14 +386,7 @@ static void handle_satn_stop(ESPState *s) if (s->dma) { esp_do_dma(s); } else { - if (get_cmd(s, 1)) { - trace_esp_handle_satn_stop(fifo8_num_used(&s->cmdfifo)); - - /* Raise command completion interrupt */ - s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; - s->rregs[ESP_RSEQ] =3D SEQ_MO; - esp_raise_irq(s); - } + esp_do_nodma(s); } } =20 @@ -770,7 +724,7 @@ static void esp_do_nodma(ESPState *s) break; =20 case CMD_SELATNS: - if (fifo8_num_used(&s->cmdfifo) =3D=3D 1) { + if (fifo8_num_used(&s->cmdfifo) >=3D 1) { /* First byte received, stop in message out phase */ s->cmdfifo_cdb_offset =3D 1; =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854999249603.7231174772282; Tue, 13 Feb 2024 12:09:59 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz03-0003nw-JP; 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bh=y5k/Qsj7Cz3nbSk7L69u+FdeVqYBrUsnn213llf00Ts=; b=s2uayqGZRoimD2DDtTGBE46OlC +lZg7lDXy2uHPE/KzsfSSJCQgBLVtgzDXiGnmj2ocw5GiC3bHT4DTXlyP+wxn6NWeA35g9FF0Tr5i uWjMuA0oJppkFzPc6cNEfrfHAL51j3CcH4la9kmH+/Swhf5/KH+gNErP024hLn22GpwR5qIMBfaEL rKIyTh7jmjZORPWRdwzYhkm2qYwqAK7cSiZPfJJljt7wbhmGlee44pr/VPJTTHU5NISLVs4uqcMMA gzQBZMLEhuf27TYoZkneSpFCdlngj/ZrfVWlz6E2HZ6DwasUWEznixV59VrLVG2Dvy9ZrUaLhUWr/ dnzmOf5pngzRMMlNuoMIeV8dUCZTgIIF7B1RMGyDX5EvvruVXYECknUWtEGvM9eQcfbDBcakDra9C RbJTS2jTb927by2sVRPkIpKy8C5SyyJ26K0KM0IfmwjCR5HYjX2MVtvzqVzxqWQMTiX8F4L+urYW4 uCEByPr5gnessvxjvzGYhgSvbeMUmFZJ/RsiuPJMowGA4322uee26v3TNnCCOKDAVIQ/sELY6fs+4 JlT9ebFqs4DPZ7bDEtgvTnPIkja2gDdhnTEtEvC1xvlxqTyzflGO2bZ3gUCpMX1v63XNuiOdzo6Dl BSzJn/lrwwjOAfw8ID6YFtMzaAqVkVdYf9m1DiN34=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:32 +0000 Message-Id: <20240213194052.1162753-69-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 68/88] esp.c: move write_response() non-DMA logic to esp_do_nodma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854999888100001 Content-Type: text/plain; charset="utf-8" This moves the remaining non-DMA STATUS and MESSAGE IN phase logic from write_response() to esp_do_nodma(). Note that we can also now drop the extra fifo_reset() which is no longer required. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-69-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 32 +++++++++++++++++++++++--------- 1 file changed, 23 insertions(+), 9 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 277eb8647b..824ebe9ff0 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -392,20 +392,12 @@ static void handle_satn_stop(ESPState *s) =20 static void write_response(ESPState *s) { - uint8_t buf[2]; - trace_esp_write_response(s->status); =20 if (s->dma) { esp_do_dma(s); } else { - buf[0] =3D s->status; - buf[1] =3D 0; - - fifo8_reset(&s->fifo); - fifo8_push_all(&s->fifo, buf, 2); - s->rregs[ESP_RFLAGS] =3D 2; - esp_raise_irq(s); + esp_do_nodma(s); } } =20 @@ -815,6 +807,28 @@ static void esp_do_nodma(ESPState *s) s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); break; + + case STAT_ST: + switch (s->rregs[ESP_CMD]) { + case CMD_ICCS: + fifo8_push(&s->fifo, s->status); + esp_set_phase(s, STAT_MI); + + /* Process any message in phase data */ + esp_do_nodma(s); + break; + } + break; + + case STAT_MI: + switch (s->rregs[ESP_CMD]) { + case CMD_ICCS: + fifo8_push(&s->fifo, 0); + + esp_raise_irq(s); + break; + } + break; } } =20 --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854471611459.84744104737035; Tue, 13 Feb 2024 12:01:11 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyxL-0000qS-Az; Tue, 13 Feb 2024 15:00:39 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyx9-0000hj-12 for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:33 +0000 Message-Id: <20240213194052.1162753-70-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 69/88] esp.c: consolidate end of command sequence after ICCS command X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854472360100002 Content-Type: text/plain; charset="utf-8" The end of command sequences for the ICCS command are currently different between the DMA and non-DMA versions, and also different from the descripti= on in the datasheet. Update the sequence so that only INTR_FC is asserted in both cases, and keep all the logic in esp_do_dma() and esp_do_nodma() rather than having some of it within esp_run_cmd(). Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-70-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 824ebe9ff0..6c62417985 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -650,8 +650,7 @@ static void esp_do_dma(ESPState *s) } =20 /* Raise end of command interrupt */ - s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; - s->rregs[ESP_RSEQ] =3D SEQ_CD; + s->rregs[ESP_RINTR] |=3D INTR_FC; esp_raise_irq(s); } break; @@ -825,6 +824,8 @@ static void esp_do_nodma(ESPState *s) case CMD_ICCS: fifo8_push(&s->fifo, 0); =20 + /* Raise end of command interrupt */ + s->rregs[ESP_RINTR] |=3D INTR_FC; esp_raise_irq(s); break; } @@ -1056,8 +1057,6 @@ static void esp_run_cmd(ESPState *s) case CMD_ICCS: trace_esp_mem_writeb_cmd_iccs(cmd); write_response(s); - s->rregs[ESP_RINTR] |=3D INTR_FC; - esp_set_phase(s, STAT_MI); break; case CMD_MSGACC: trace_esp_mem_writeb_cmd_msgacc(cmd); --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854475592270.6828803094378; Tue, 13 Feb 2024 12:01:15 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyxO-0000sU-5W; Tue, 13 Feb 2024 15:00:42 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyxD-0000jL-Ml for qemu-devel@nongnu.org; Tue, 13 Feb 2024 15:00:33 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyxB-0001j9-N7 for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:34 +0000 Message-Id: <20240213194052.1162753-71-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 70/88] esp.c: ensure that STAT_INT is cleared when reading ESP_RINTR X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854476324100001 Content-Type: text/plain; charset="utf-8" Both esp_raise_irq() and esp_lower_irq() check the STAT_INT bit in ESP_RSTAT to ensure that the IRQ is raised or lowered if its state changes. When read= ing ESP_RINTR, esp_lower_irq() was being called *after* ESP_RSTAT had been cleared meaning that STAT_INT was already clear, and so if STAT_INT was asserted beforehand then the esp_lower_irq() would have no effect. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-71-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 6c62417985..604fb9235d 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -1127,6 +1127,7 @@ uint64_t esp_reg_read(ESPState *s, uint32_t saddr) */ val =3D s->rregs[ESP_RINTR]; s->rregs[ESP_RINTR] =3D 0; + esp_lower_irq(s); s->rregs[ESP_RSTAT] &=3D ~STAT_TC; /* * According to the datasheet ESP_RSEQ should be cleared, but as t= he @@ -1137,7 +1138,6 @@ uint64_t esp_reg_read(ESPState *s, uint32_t saddr) * * s->rregs[ESP_RSEQ] =3D SEQ_0; */ - esp_lower_irq(s); break; case ESP_TCHI: /* Return the unique id if the value has never been written */ --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:35 +0000 Message-Id: <20240213194052.1162753-72-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 71/88] esp.c: don't clear the SCSI phase when reading ESP_RINTR X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854935723100001 Content-Type: text/plain; charset="utf-8" According to the documentation ESP_RSTAT is cleared (except the STAT_TC bit) when ESP_RINTR is read. This should not include the SCSI bus phase bits whi= ch are currently live from the SCSI bus, otherwise the current SCSI phase is l= ost when clearing an end-of-transfer interrupt. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-72-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 604fb9235d..8ea100ee9c 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -1128,7 +1128,7 @@ uint64_t esp_reg_read(ESPState *s, uint32_t saddr) val =3D s->rregs[ESP_RINTR]; s->rregs[ESP_RINTR] =3D 0; esp_lower_irq(s); - s->rregs[ESP_RSTAT] &=3D ~STAT_TC; + s->rregs[ESP_RSTAT] &=3D STAT_TC | 7; /* * According to the datasheet ESP_RSEQ should be cleared, but as t= he * emulation currently defers information transfers to the next TI --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:36 +0000 Message-Id: <20240213194052.1162753-73-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 72/88] esp.c: handle TC underflow for DMA SCSI requests X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854943742100008 Content-Type: text/plain; charset="utf-8" Detect the case where the guest underflows TC by requesting a DMA transfer = which is larger than the available data. If this case is detected, immediately complete the SCSI request and handle any remaining FIFO accesses in the STA= TUS phase by raising INTR_BS once the FIFO is below the threshold. Note that handling the premature SCSI bus phase change in the case of TC underflow fixes booting EMILE on m68k once again. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-73-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 8ea100ee9c..a3e18bb3d7 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -579,6 +579,12 @@ static void esp_do_dma(ESPState *s) s->async_len -=3D len; s->ti_size -=3D len; =20 + if (s->async_len =3D=3D 0 && s->ti_size =3D=3D 0 && esp_get_tc= (s)) { + /* If the guest underflows TC then terminate SCSI request = */ + scsi_req_continue(s->current_req); + return; + } + if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { /* Defer until the scsi layer has completed */ scsi_req_continue(s->current_req); @@ -596,6 +602,12 @@ static void esp_do_dma(ESPState *s) esp_set_tc(s, esp_get_tc(s) - len); esp_raise_drq(s); =20 + if (s->async_len =3D=3D 0 && s->ti_size =3D=3D 0 && esp_get_tc= (s)) { + /* If the guest underflows TC then terminate SCSI request = */ + scsi_req_continue(s->current_req); + return; + } + if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { /* Defer until the scsi layer has completed */ scsi_req_continue(s->current_req); @@ -630,6 +642,15 @@ static void esp_do_dma(ESPState *s) } } break; + + default: + /* Consume remaining data if the guest underflows TC */ + if (fifo8_num_used(&s->fifo) < 2) { + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + esp_lower_drq(s); + } + break; } break; =20 @@ -884,7 +905,9 @@ void esp_command_complete(SCSIRequest *req, size_t resi= d) esp_set_phase(s, STAT_ST); s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); - esp_lower_drq(s); + + /* Ensure DRQ is set correctly for TC underflow or normal completion */ + esp_dma_ti_check(s); =20 if (s->current_req) { scsi_req_unref(s->current_req); --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:37 +0000 Message-Id: <20240213194052.1162753-74-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 73/88] esp.c: remove restriction on FIFO read access when DMA memory routines defined X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01, T_SPF_TEMPERROR=0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707855152297100007 Content-Type: text/plain; charset="utf-8" The latest state machines can handle mixing DMA and non-DMA FIFO access for= all SCSI phases except DATA IN and DATA OUT. For DATA IN and DATA OUT phases, t= he transfer is complete when TC =3D=3D 0 and the updated logic will now handle= TC underflow correctly, which makes it just about impossible to manually manip= ulate the FIFO during a DMA transfer. Remove the restriction on FIFO read access when DMA memory routines are def= ined which also allows the NeXTCube machine to pass its self-test. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-74-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index a3e18bb3d7..f9d848171f 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -1133,14 +1133,7 @@ uint64_t esp_reg_read(ESPState *s, uint32_t saddr) =20 switch (saddr) { case ESP_FIFO: - if (s->dma_memory_read && s->dma_memory_write && - (s->rregs[ESP_RSTAT] & STAT_PIO_MASK) =3D=3D 0) { - /* Data out. */ - qemu_log_mask(LOG_UNIMP, "esp: PIO data read not implemented\n= "); - s->rregs[ESP_FIFO] =3D 0; - } else { - s->rregs[ESP_FIFO] =3D esp_fifo_pop(&s->fifo); - } + s->rregs[ESP_FIFO] =3D esp_fifo_pop(&s->fifo); val =3D s->rregs[ESP_FIFO]; break; case ESP_RINTR: --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:38 +0000 Message-Id: <20240213194052.1162753-75-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 74/88] esp.c: handle non-DMA FIFO writes used to terminate DMA commands X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01, T_SPF_TEMPERROR=0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854971812100005 Content-Type: text/plain; charset="utf-8" Certain versions of MacOS send the first 5 bytes of the CDB using DMA and t= hen send the last byte of the CDB by writing to the FIFO. Update the non-DMA st= ate machine to detect the end of the CDB and execute the SCSI command using sim= ilar logic as that which already exists for transferring the remainder of the CDB using the ESP TI command. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-75-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index f9d848171f..aa7dec71e3 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -787,6 +787,16 @@ static void esp_do_nodma(ESPState *s) } break; =20 + case CMD_SEL | CMD_DMA: + case CMD_SELATN | CMD_DMA: + /* Handle when DMA transfer is terminated by non-DMA FIFO writ= e */ + if (esp_cdb_length(s) && esp_cdb_length(s) =3D=3D + fifo8_num_used(&s->cmdfifo) - s->cmdfifo_cdb_offset) { + /* Command has been received */ + do_cmd(s); + } + break; + case CMD_SEL: case CMD_SELATN: /* FIFO already contain entire CDB */ --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:39 +0000 Message-Id: <20240213194052.1162753-76-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 75/88] esp.c: improve ESP_RSEQ logic consolidation X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854895630100001 Content-Type: text/plain; charset="utf-8" The ESP_RSEQ logic is scattered in a few places throughout the ESP state ma= chine which is mainly because the ESP_RSEQ register isn't always reset when execu= ting an ESP select command. Once this is done, the ESP_RSEQ register only needs = to be updated at the point where the sequencer command completes. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-76-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index aa7dec71e3..ca26415d5f 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -230,6 +230,7 @@ static int esp_select(ESPState *s) target =3D s->wregs[ESP_WBUSID] & BUSID_DID; =20 s->ti_size =3D 0; + s->rregs[ESP_RSEQ] =3D SEQ_0; =20 if (s->current_req) { /* Started a new command before the old one finished. Cancel it. */ @@ -241,7 +242,6 @@ static int esp_select(ESPState *s) /* No such drive */ s->rregs[ESP_RSTAT] =3D 0; s->rregs[ESP_RINTR] =3D INTR_DC; - s->rregs[ESP_RSEQ] =3D SEQ_0; esp_raise_irq(s); return -1; } @@ -250,7 +250,6 @@ static int esp_select(ESPState *s) * Note that we deliberately don't raise the IRQ here: this will be do= ne * either in esp_transfer_data() or esp_command_complete() */ - s->rregs[ESP_RSEQ] =3D SEQ_CD; return 0; } =20 @@ -358,7 +357,6 @@ static void handle_s_without_atn(ESPState *s) } =20 esp_set_phase(s, STAT_CD); - s->rregs[ESP_RSEQ] =3D SEQ_CD; s->cmdfifo_cdb_offset =3D 0; =20 if (s->dma) { @@ -380,7 +378,6 @@ static void handle_satn_stop(ESPState *s) } =20 esp_set_phase(s, STAT_MO); - s->rregs[ESP_RSEQ] =3D SEQ_MO; s->cmdfifo_cdb_offset =3D 0; =20 if (s->dma) { @@ -456,6 +453,7 @@ static void esp_do_dma(ESPState *s) if (fifo8_num_used(&s->cmdfifo) >=3D 1) { /* First byte received, switch to command phase */ esp_set_phase(s, STAT_CD); + s->rregs[ESP_RSEQ] =3D SEQ_CD; s->cmdfifo_cdb_offset =3D 1; =20 if (fifo8_num_used(&s->cmdfifo) > 1) { @@ -468,11 +466,11 @@ static void esp_do_dma(ESPState *s) case CMD_SELATNS | CMD_DMA: if (fifo8_num_used(&s->cmdfifo) =3D=3D 1) { /* First byte received, stop in message out phase */ + s->rregs[ESP_RSEQ] =3D SEQ_MO; s->cmdfifo_cdb_offset =3D 1; =20 /* Raise command completion interrupt */ s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; - s->rregs[ESP_RSEQ] =3D SEQ_CD; esp_raise_irq(s); } break; @@ -482,7 +480,6 @@ static void esp_do_dma(ESPState *s) if (esp_get_tc(s) =3D=3D 0) { esp_set_phase(s, STAT_CD); s->rregs[ESP_CMD] =3D 0; - s->rregs[ESP_RSEQ] =3D SEQ_CD; s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); } @@ -726,6 +723,7 @@ static void esp_do_nodma(ESPState *s) if (fifo8_num_used(&s->cmdfifo) >=3D 1) { /* First byte received, switch to command phase */ esp_set_phase(s, STAT_CD); + s->rregs[ESP_RSEQ] =3D SEQ_CD; s->cmdfifo_cdb_offset =3D 1; =20 if (fifo8_num_used(&s->cmdfifo) > 1) { @@ -738,6 +736,7 @@ static void esp_do_nodma(ESPState *s) case CMD_SELATNS: if (fifo8_num_used(&s->cmdfifo) >=3D 1) { /* First byte received, stop in message out phase */ + s->rregs[ESP_RSEQ] =3D SEQ_MO; s->cmdfifo_cdb_offset =3D 1; =20 /* Raise command completion interrupt */ @@ -903,6 +902,7 @@ void esp_command_complete(SCSIRequest *req, size_t resi= d) * and function complete interrupt */ s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; + s->rregs[ESP_RSEQ] =3D SEQ_CD; break; =20 case CMD_TI | CMD_DMA: @@ -948,6 +948,7 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) * so raise deferred bus service and function complete interru= pt */ s->rregs[ESP_RINTR] |=3D INTR_BS | INTR_FC; + s->rregs[ESP_RSEQ] =3D SEQ_CD; break; =20 case CMD_SELATNS | CMD_DMA: @@ -957,6 +958,7 @@ void esp_transfer_data(SCSIRequest *req, uint32_t len) * completion interrupt */ s->rregs[ESP_RINTR] |=3D INTR_BS; + s->rregs[ESP_RSEQ] =3D SEQ_MO; break; =20 case CMD_TI | CMD_DMA: --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:40 +0000 Message-Id: <20240213194052.1162753-77-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 76/88] esp.c: only transfer non-DMA COMMAND phase data for specific commands X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707855184372100003 Content-Type: text/plain; charset="utf-8" The contents of the FIFO should only be copied to cmdfifo for ESP commands = that are sending data to the SCSI bus, which are the SEL_* commands and the TI command. Otherwise any incoming data should be held in the FIFO as normal. This fixes booting of really old 32-bit SPARC Linux kernels such as Aurelie= n's debian_etch_sparc_small.qcow2 test image. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-77-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index ca26415d5f..17e2db442c 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -757,13 +757,13 @@ static void esp_do_nodma(ESPState *s) break; =20 case STAT_CD: - /* Copy FIFO into cmdfifo */ - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); - switch (s->rregs[ESP_CMD]) { case CMD_TI: + /* Copy FIFO into cmdfifo */ + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + cmdlen =3D fifo8_num_used(&s->cmdfifo); trace_esp_handle_ti_cmd(cmdlen); =20 @@ -788,6 +788,11 @@ static void esp_do_nodma(ESPState *s) =20 case CMD_SEL | CMD_DMA: case CMD_SELATN | CMD_DMA: + /* Copy FIFO into cmdfifo */ + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + /* Handle when DMA transfer is terminated by non-DMA FIFO writ= e */ if (esp_cdb_length(s) && esp_cdb_length(s) =3D=3D fifo8_num_used(&s->cmdfifo) - s->cmdfifo_cdb_offset) { @@ -798,7 +803,11 @@ static void esp_do_nodma(ESPState *s) =20 case CMD_SEL: case CMD_SELATN: - /* FIFO already contain entire CDB */ + /* FIFO already contain entire CDB: copy to cmdfifo and execut= e */ + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + do_cmd(s); break; } --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707855149331958.9282816913665; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:41 +0000 Message-Id: <20240213194052.1162753-78-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 77/88] esp.c: only transfer non-DMA MESSAGE OUT phase data for specific commands X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707855150283100003 Content-Type: text/plain; charset="utf-8" The contents of the FIFO should only be copied to cmdfifo for ESP commands = that are sending data to the SCSI bus, which are the SEL_* commands and the TI command. Otherwise any incoming data should be held in the FIFO as normal. This fixes booting of NetBSD m68k under the Q800 machine once again. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-78-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 17e2db442c..d63039af89 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -712,14 +712,13 @@ static void esp_do_nodma(ESPState *s) =20 switch (esp_get_phase(s)) { case STAT_MO: - /* Copy FIFO into cmdfifo */ - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); - s->cmdfifo_cdb_offset +=3D n; - switch (s->rregs[ESP_CMD]) { case CMD_SELATN: + /* Copy FIFO into cmdfifo */ + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + if (fifo8_num_used(&s->cmdfifo) >=3D 1) { /* First byte received, switch to command phase */ esp_set_phase(s, STAT_CD); @@ -734,6 +733,11 @@ static void esp_do_nodma(ESPState *s) break; =20 case CMD_SELATNS: + /* Copy one byte from FIFO into cmdfifo */ + n =3D esp_fifo_pop_buf(&s->fifo, buf, 1); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + if (fifo8_num_used(&s->cmdfifo) >=3D 1) { /* First byte received, stop in message out phase */ s->rregs[ESP_RSEQ] =3D SEQ_MO; @@ -746,6 +750,11 @@ static void esp_do_nodma(ESPState *s) break; =20 case CMD_TI: + /* Copy FIFO into cmdfifo */ + n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); + n =3D MIN(fifo8_num_free(&s->cmdfifo), n); + fifo8_push_all(&s->cmdfifo, buf, n); + /* ATN remains asserted until FIFO empty */ s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); esp_set_phase(s, STAT_CD); --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:42 +0000 Message-Id: <20240213194052.1162753-79-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 78/88] esp.c: consolidate DMA and PDMA logic in DATA OUT phase X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854472362100003 Content-Type: text/plain; charset="utf-8" This allows the removal of duplicate logic shared between the two implement= ations. Note that we restrict esp_raise_drq() to PDMA to help reduce the log verbos= ity for normal DMA. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-79-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 35 ++++++++++++----------------------- 1 file changed, 12 insertions(+), 23 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index d63039af89..394774c379 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -521,40 +521,29 @@ static void esp_do_dma(ESPState *s) if (len > s->async_len) { len =3D s->async_len; } + if (s->dma_memory_read) { s->dma_memory_read(s->dma_opaque, s->async_buf, len); - esp_set_tc(s, esp_get_tc(s) - len); - s->async_buf +=3D len; - s->async_len -=3D len; - s->ti_size +=3D len; - - if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - /* Defer until the scsi layer has completed */ - scsi_req_continue(s->current_req); - return; - } - - esp_dma_ti_check(s); } else { /* Copy FIFO data to device */ len =3D MIN(s->async_len, ESP_FIFO_SZ); len =3D MIN(len, fifo8_num_used(&s->fifo)); - n =3D esp_fifo_pop_buf(&s->fifo, s->async_buf, len); - s->async_buf +=3D n; - s->async_len -=3D n; - s->ti_size +=3D n; - + len =3D esp_fifo_pop_buf(&s->fifo, s->async_buf, len); esp_raise_drq(s); + } =20 - if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - /* Defer until the scsi layer has completed */ - scsi_req_continue(s->current_req); - return; - } + s->async_buf +=3D len; + s->async_len -=3D len; + s->ti_size +=3D len; =20 - esp_dma_ti_check(s); + if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { + /* Defer until the scsi layer has completed */ + scsi_req_continue(s->current_req); + return; } + + esp_dma_ti_check(s); break; =20 case STAT_DI: --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 170785476482642.46617931538492; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:43 +0000 Message-Id: <20240213194052.1162753-80-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 79/88] esp.c: consolidate DMA and PDMA logic in DATA IN phase X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854765271100001 Content-Type: text/plain; charset="utf-8" This allows the removal of duplicate logic shared between the two implement= ations. Note that we restrict esp_raise_drq() to PDMA to help reduce the log verbos= ity for normal DMA. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-80-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 51 +++++++++++++++++---------------------------------- 1 file changed, 17 insertions(+), 34 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 394774c379..49fc059eaa 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -557,51 +557,34 @@ static void esp_do_dma(ESPState *s) if (len > s->async_len) { len =3D s->async_len; } + if (s->dma_memory_write) { s->dma_memory_write(s->dma_opaque, s->async_buf, len); - - esp_set_tc(s, esp_get_tc(s) - len); - s->async_buf +=3D len; - s->async_len -=3D len; - s->ti_size -=3D len; - - if (s->async_len =3D=3D 0 && s->ti_size =3D=3D 0 && esp_get_tc= (s)) { - /* If the guest underflows TC then terminate SCSI request = */ - scsi_req_continue(s->current_req); - return; - } - - if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - /* Defer until the scsi layer has completed */ - scsi_req_continue(s->current_req); - return; - } - - esp_dma_ti_check(s); } else { /* Copy device data to FIFO */ len =3D MIN(len, fifo8_num_free(&s->fifo)); fifo8_push_all(&s->fifo, s->async_buf, len); - s->async_buf +=3D len; - s->async_len -=3D len; - s->ti_size -=3D len; - esp_set_tc(s, esp_get_tc(s) - len); esp_raise_drq(s); + } =20 - if (s->async_len =3D=3D 0 && s->ti_size =3D=3D 0 && esp_get_tc= (s)) { - /* If the guest underflows TC then terminate SCSI request = */ - scsi_req_continue(s->current_req); - return; - } + s->async_buf +=3D len; + s->async_len -=3D len; + s->ti_size -=3D len; + esp_set_tc(s, esp_get_tc(s) - len); =20 - if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { - /* Defer until the scsi layer has completed */ - scsi_req_continue(s->current_req); - return; - } + if (s->async_len =3D=3D 0 && s->ti_size =3D=3D 0 && esp_get_tc(s))= { + /* If the guest underflows TC then terminate SCSI request */ + scsi_req_continue(s->current_req); + return; + } =20 - esp_dma_ti_check(s); + if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { + /* Defer until the scsi layer has completed */ + scsi_req_continue(s->current_req); + return; } + + esp_dma_ti_check(s); break; =20 case STAT_ST: --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854748727496.2921975974655; Tue, 13 Feb 2024 12:05:48 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz0n-000572-KN; Tue, 13 Feb 2024 15:04:13 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZz0e-0004rb-RO for qemu-devel@nongnu.org; Tue, 13 Feb 2024 15:04:05 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZz0d-0002I8-9I for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:44 +0000 Message-Id: <20240213194052.1162753-81-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 80/88] esp.c: consolidate DMA and PDMA logic in MESSAGE OUT phase X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854749215100001 Content-Type: text/plain; charset="utf-8" This allows the removal of duplicate logic shared between the two implement= ations. Note that we restrict esp_raise_drq() to PDMA to help reduce the log verbos= ity for normal DMA. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-81-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 49fc059eaa..ae65c2ef37 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -436,17 +436,15 @@ static void esp_do_dma(ESPState *s) if (s->dma_memory_read) { len =3D MIN(len, fifo8_num_free(&s->cmdfifo)); s->dma_memory_read(s->dma_opaque, buf, len); - fifo8_push_all(&s->cmdfifo, buf, len); esp_set_tc(s, esp_get_tc(s) - len); - s->cmdfifo_cdb_offset +=3D len; } else { - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); - s->cmdfifo_cdb_offset +=3D n; + len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D MIN(fifo8_num_free(&s->cmdfifo), len); + esp_raise_drq(s); } =20 - esp_raise_drq(s); + fifo8_push_all(&s->cmdfifo, buf, len); + s->cmdfifo_cdb_offset +=3D len; =20 switch (s->rregs[ESP_CMD]) { case CMD_SELATN | CMD_DMA: --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854548975630.8019312725414; Tue, 13 Feb 2024 12:02:28 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyxj-000115-G8; Tue, 13 Feb 2024 15:01:03 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyxH-0000l3-HK for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:45 +0000 Message-Id: <20240213194052.1162753-82-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 81/88] esp.c: remove redundant n variable in PDMA COMMAND phase X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854550595100003 Content-Type: text/plain; charset="utf-8" This variable can be replaced by the existing len variable. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-82-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index ae65c2ef37..8ef6d203e0 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -427,7 +427,6 @@ static void esp_do_dma(ESPState *s) { uint32_t len, cmdlen; uint8_t buf[ESP_CMDFIFO_SZ]; - int n; =20 len =3D esp_get_tc(s); =20 @@ -494,10 +493,9 @@ static void esp_do_dma(ESPState *s) fifo8_push_all(&s->cmdfifo, buf, len); esp_set_tc(s, esp_get_tc(s) - len); } else { - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); - + len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D MIN(fifo8_num_free(&s->cmdfifo), len); + fifo8_push_all(&s->cmdfifo, buf, len); esp_raise_drq(s); } trace_esp_handle_ti_cmd(cmdlen); --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854946410730.7820264481587; Tue, 13 Feb 2024 12:09:06 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz0Z-0004hV-HU; Tue, 13 Feb 2024 15:04:02 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyzm-0003Ot-K4 for qemu-devel@nongnu.org; Tue, 13 Feb 2024 15:03:12 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyzk-000297-9c for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:46 +0000 Message-Id: <20240213194052.1162753-83-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 82/88] esp.c: consolidate DMA and PDMA logic in STATUS and MESSAGE IN phases X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854947744100003 Content-Type: text/plain; charset="utf-8" This allows the removal of duplicate logic shared between the two implement= ations. Note that we restrict esp_raise_drq() to PDMA to help reduce the log verbos= ity for normal DMA. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-83-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 8ef6d203e0..879e311bc4 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -593,12 +593,11 @@ static void esp_do_dma(ESPState *s) =20 if (s->dma_memory_write) { s->dma_memory_write(s->dma_opaque, buf, len); - esp_set_tc(s, esp_get_tc(s) - len); } else { fifo8_push_all(&s->fifo, buf, len); - esp_set_tc(s, esp_get_tc(s) - len); } =20 + esp_set_tc(s, esp_get_tc(s) - len); esp_set_phase(s, STAT_MI); =20 if (esp_get_tc(s) > 0) { @@ -629,12 +628,12 @@ static void esp_do_dma(ESPState *s) =20 if (s->dma_memory_write) { s->dma_memory_write(s->dma_opaque, buf, len); - esp_set_tc(s, esp_get_tc(s) - len); } else { fifo8_push_all(&s->fifo, buf, len); - esp_set_tc(s, esp_get_tc(s) - len); } =20 + esp_set_tc(s, esp_get_tc(s) - len); + /* Raise end of command interrupt */ s->rregs[ESP_RINTR] |=3D INTR_FC; esp_raise_irq(s); --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854986701200.6985419416843; Tue, 13 Feb 2024 12:09:46 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz03-0003nL-2n; Tue, 13 Feb 2024 15:03:27 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyyc-0002MC-GF for qemu-devel@nongnu.org; Tue, 13 Feb 2024 15:02:00 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyya-0001wp-U1 for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:47 +0000 Message-Id: <20240213194052.1162753-84-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 83/88] esp.c: replace n variable with len in esp_do_nodma() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854987900100003 Content-Type: text/plain; charset="utf-8" This brings esp_do_nodma() in line with esp_do_dma(). Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-84-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 40 ++++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 20 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 879e311bc4..73379a3c65 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -675,16 +675,16 @@ static void esp_do_nodma(ESPState *s) { uint8_t buf[ESP_FIFO_SZ]; uint32_t cmdlen; - int n; + int len; =20 switch (esp_get_phase(s)) { case STAT_MO: switch (s->rregs[ESP_CMD]) { case CMD_SELATN: /* Copy FIFO into cmdfifo */ - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); + len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D MIN(fifo8_num_free(&s->cmdfifo), len); + fifo8_push_all(&s->cmdfifo, buf, len); =20 if (fifo8_num_used(&s->cmdfifo) >=3D 1) { /* First byte received, switch to command phase */ @@ -701,9 +701,9 @@ static void esp_do_nodma(ESPState *s) =20 case CMD_SELATNS: /* Copy one byte from FIFO into cmdfifo */ - n =3D esp_fifo_pop_buf(&s->fifo, buf, 1); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); + len =3D esp_fifo_pop_buf(&s->fifo, buf, 1); + len =3D MIN(fifo8_num_free(&s->cmdfifo), len); + fifo8_push_all(&s->cmdfifo, buf, len); =20 if (fifo8_num_used(&s->cmdfifo) >=3D 1) { /* First byte received, stop in message out phase */ @@ -718,9 +718,9 @@ static void esp_do_nodma(ESPState *s) =20 case CMD_TI: /* Copy FIFO into cmdfifo */ - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); + len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D MIN(fifo8_num_free(&s->cmdfifo), len); + fifo8_push_all(&s->cmdfifo, buf, len); =20 /* ATN remains asserted until FIFO empty */ s->cmdfifo_cdb_offset =3D fifo8_num_used(&s->cmdfifo); @@ -736,9 +736,9 @@ static void esp_do_nodma(ESPState *s) switch (s->rregs[ESP_CMD]) { case CMD_TI: /* Copy FIFO into cmdfifo */ - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); + len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D MIN(fifo8_num_free(&s->cmdfifo), len); + fifo8_push_all(&s->cmdfifo, buf, len); =20 cmdlen =3D fifo8_num_used(&s->cmdfifo); trace_esp_handle_ti_cmd(cmdlen); @@ -754,7 +754,7 @@ static void esp_do_nodma(ESPState *s) * service interrupt to indicate transfer complete. Otherw= ise * defer until the next FIFO write. */ - if (n) { + if (len) { /* Raise interrupt to indicate transfer complete */ s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); @@ -765,9 +765,9 @@ static void esp_do_nodma(ESPState *s) case CMD_SEL | CMD_DMA: case CMD_SELATN | CMD_DMA: /* Copy FIFO into cmdfifo */ - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); + len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D MIN(fifo8_num_free(&s->cmdfifo), len); + fifo8_push_all(&s->cmdfifo, buf, len); =20 /* Handle when DMA transfer is terminated by non-DMA FIFO writ= e */ if (esp_cdb_length(s) && esp_cdb_length(s) =3D=3D @@ -780,9 +780,9 @@ static void esp_do_nodma(ESPState *s) case CMD_SEL: case CMD_SELATN: /* FIFO already contain entire CDB: copy to cmdfifo and execut= e */ - n =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fifo)= ); - n =3D MIN(fifo8_num_free(&s->cmdfifo), n); - fifo8_push_all(&s->cmdfifo, buf, n); + len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D MIN(fifo8_num_free(&s->cmdfifo), len); + fifo8_push_all(&s->cmdfifo, buf, len); =20 do_cmd(s); break; --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854941905924.6106263122051; Tue, 13 Feb 2024 12:09:01 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz0Q-0004PF-Qh; Tue, 13 Feb 2024 15:03:51 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyzW-00037d-TN for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:48 +0000 Message-Id: <20240213194052.1162753-85-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 84/88] esp.c: implement DMA Transfer Pad command for DATA phases X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854943754100009 Content-Type: text/plain; charset="utf-8" The Transfer Pad command is used to either drop incoming FIFO data during t= he DATA IN phase or generate a series of zero bytes in the FIFO during the DATA OUT phase. Implement the DMA Transfer Pad command for the DATA phases which is used by the NeXTCube firmware in the DATA IN phase to ignore part of the incoming S= CSI data as it is copied into memory. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-85-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 97 ++++++++++++++++++++++++++++++++++++--------------- 1 file changed, 69 insertions(+), 28 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 73379a3c65..5583b3eb56 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -387,6 +387,15 @@ static void handle_satn_stop(ESPState *s) } } =20 +static void handle_pad(ESPState *s) +{ + if (s->dma) { + esp_do_dma(s); + } else { + esp_do_nodma(s); + } +} + static void write_response(ESPState *s) { trace_esp_write_response(s->status); @@ -518,20 +527,38 @@ static void esp_do_dma(ESPState *s) len =3D s->async_len; } =20 - if (s->dma_memory_read) { - s->dma_memory_read(s->dma_opaque, s->async_buf, len); - esp_set_tc(s, esp_get_tc(s) - len); - } else { - /* Copy FIFO data to device */ - len =3D MIN(s->async_len, ESP_FIFO_SZ); - len =3D MIN(len, fifo8_num_used(&s->fifo)); - len =3D esp_fifo_pop_buf(&s->fifo, s->async_buf, len); - esp_raise_drq(s); - } + switch (s->rregs[ESP_CMD]) { + case CMD_TI | CMD_DMA: + if (s->dma_memory_read) { + s->dma_memory_read(s->dma_opaque, s->async_buf, len); + esp_set_tc(s, esp_get_tc(s) - len); + } else { + /* Copy FIFO data to device */ + len =3D MIN(s->async_len, ESP_FIFO_SZ); + len =3D MIN(len, fifo8_num_used(&s->fifo)); + len =3D esp_fifo_pop_buf(&s->fifo, s->async_buf, len); + esp_raise_drq(s); + } =20 - s->async_buf +=3D len; - s->async_len -=3D len; - s->ti_size +=3D len; + s->async_buf +=3D len; + s->async_len -=3D len; + s->ti_size +=3D len; + break; + + case CMD_PAD | CMD_DMA: + /* Copy TC zero bytes into the incoming stream */ + if (!s->dma_memory_read) { + len =3D MIN(s->async_len, ESP_FIFO_SZ); + len =3D MIN(len, fifo8_num_free(&s->fifo)); + } + + memset(s->async_buf, 0, len); + + s->async_buf +=3D len; + s->async_len -=3D len; + s->ti_size +=3D len; + break; + } =20 if (s->async_len =3D=3D 0 && fifo8_num_used(&s->fifo) < 2) { /* Defer until the scsi layer has completed */ @@ -554,19 +581,35 @@ static void esp_do_dma(ESPState *s) len =3D s->async_len; } =20 - if (s->dma_memory_write) { - s->dma_memory_write(s->dma_opaque, s->async_buf, len); - } else { - /* Copy device data to FIFO */ - len =3D MIN(len, fifo8_num_free(&s->fifo)); - fifo8_push_all(&s->fifo, s->async_buf, len); - esp_raise_drq(s); - } + switch (s->rregs[ESP_CMD]) { + case CMD_TI | CMD_DMA: + if (s->dma_memory_write) { + s->dma_memory_write(s->dma_opaque, s->async_buf, len); + } else { + /* Copy device data to FIFO */ + len =3D MIN(len, fifo8_num_free(&s->fifo)); + fifo8_push_all(&s->fifo, s->async_buf, len); + esp_raise_drq(s); + } + + s->async_buf +=3D len; + s->async_len -=3D len; + s->ti_size -=3D len; + esp_set_tc(s, esp_get_tc(s) - len); + break; + + case CMD_PAD | CMD_DMA: + /* Drop TC bytes from the incoming stream */ + if (!s->dma_memory_write) { + len =3D MIN(len, fifo8_num_free(&s->fifo)); + } =20 - s->async_buf +=3D len; - s->async_len -=3D len; - s->ti_size -=3D len; - esp_set_tc(s, esp_get_tc(s) - len); + s->async_buf +=3D len; + s->async_len -=3D len; + s->ti_size -=3D len; + esp_set_tc(s, esp_get_tc(s) - len); + break; + } =20 if (s->async_len =3D=3D 0 && s->ti_size =3D=3D 0 && esp_get_tc(s))= { /* If the guest underflows TC then terminate SCSI request */ @@ -1087,9 +1130,7 @@ static void esp_run_cmd(ESPState *s) break; case CMD_PAD: trace_esp_mem_writeb_cmd_pad(cmd); - s->rregs[ESP_RSTAT] =3D STAT_TC; - s->rregs[ESP_RINTR] |=3D INTR_FC; - s->rregs[ESP_RSEQ] =3D 0; + handle_pad(s); break; case CMD_SATN: trace_esp_mem_writeb_cmd_satn(cmd); --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707855116554767.3432694835768; Tue, 13 Feb 2024 12:11:56 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz0N-0004E9-4R; Tue, 13 Feb 2024 15:03:47 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyzr-0003TC-BG for qemu-devel@nongnu.org; Tue, 13 Feb 2024 15:03:15 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyzn-00029K-VB for qemu-devel@nongnu.org; Tue, 13 Feb 2024 15:03:14 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZyi2-0008m4-Le; Tue, 13 Feb 2024 19:44:50 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=2jpEwFF0iWK0ipjHESSVnu863cezPVN31mvVo4kKl7k=; b=GHAac6CtGWCrYeiIJJD9PRwrvF VNrY6YztYjDxzoCiZgfSHW/MXJhOfhAzwWtKAqZkpFoYEdQ+dAo7RaEb+6CC0F6SjUjiIB6hRN/iu 6fmiLBKwtb7aJHasgTn6HdffNXcNfPBVJNvA10xmyyM7MQNr77epjzpueZgdOp3sLKTKqbMb9Juxu piS108BY+TA21NMiZnV6WUaEr4amfYErlrV/dirrjWZbv4aPr8LwRadqsZ262GHXFQcQ2IiuzabpY neMXQPXkwjWybPuBjYRxZGPQcXNjrUUg8AwFJMMSBvXm/dksev5Zh523vamjVqiw19HmHOG3wLsj1 Dan9vsHJiBK9pzEfSNgVf39UwE5cOIoGUOQaVyyvcVF5Zfu64S6V7bDeTTlXLfvUdSrr1dgenQrME Mjh5eBrRTKKcKGEScpS4+DFk2HxtKJtCYubFXyuMbzxCZOmv5BCSUuW7sz+t1Lf/uOepAQDmyeidN O2jTkCafBxe3KPzVaNKgpts4U6wkm2Oxv5GFfZVTqGuTm7babRDkekXRYVQy9S7C9JAWKZdLH6esR g88LqOsgqLDi8YyejQ+Jf/ldTChvTn7NWx+CjARGv+U35xfxYnLqeuhdj2gHSUQszhMG8W8ZYGu70 Z5H/GIQsK6sbdf3p8v1XdFQsQrgJagxe7hW5+3Ay8=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:49 +0000 Message-Id: <20240213194052.1162753-86-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 85/88] esp.c: rename irq_data IRQ to drq_irq X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707855118176100003 Content-Type: text/plain; charset="utf-8" The IRQ represented by irq_data is actually the DRQ (DMA request) line so r= ename it accordingly. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-86-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 8 ++++---- include/hw/scsi/esp.h | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 5583b3eb56..fb68606f00 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -62,13 +62,13 @@ static void esp_lower_irq(ESPState *s) =20 static void esp_raise_drq(ESPState *s) { - qemu_irq_raise(s->irq_data); + qemu_irq_raise(s->drq_irq); trace_esp_raise_drq(); } =20 static void esp_lower_drq(ESPState *s) { - qemu_irq_lower(s->irq_data); + qemu_irq_lower(s->drq_irq); trace_esp_lower_drq(); } =20 @@ -1062,7 +1062,7 @@ void esp_hard_reset(ESPState *s) static void esp_soft_reset(ESPState *s) { qemu_irq_lower(s->irq); - qemu_irq_lower(s->irq_data); + qemu_irq_lower(s->drq_irq); esp_hard_reset(s); } =20 @@ -1489,7 +1489,7 @@ static void sysbus_esp_realize(DeviceState *dev, Erro= r **errp) } =20 sysbus_init_irq(sbd, &s->irq); - sysbus_init_irq(sbd, &s->irq_data); + sysbus_init_irq(sbd, &s->drq_irq); assert(sysbus->it_shift !=3D -1); =20 s->chip_id =3D TCHI_FAS100A; diff --git a/include/hw/scsi/esp.h b/include/hw/scsi/esp.h index 39b416f538..c6e8b64e20 100644 --- a/include/hw/scsi/esp.h +++ b/include/hw/scsi/esp.h @@ -25,7 +25,7 @@ struct ESPState { uint8_t rregs[ESP_REGS]; uint8_t wregs[ESP_REGS]; qemu_irq irq; - qemu_irq irq_data; + qemu_irq drq_irq; uint8_t chip_id; bool tchi_written; int32_t ti_size; --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707854849930592.340652059747; Tue, 13 Feb 2024 12:07:29 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZz0B-0003uh-RR; Tue, 13 Feb 2024 15:03:36 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyy4-0001kr-7r for qemu-devel@nongnu.org; Tue, 13 Feb 2024 15:01:34 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyy2-0001sa-MO for qemu-devel@nongnu.org; Tue, 13 Feb 2024 15:01:24 -0500 Received: from [2a00:23c4:8bb2:1300:c500:f104:bc51:e670] (helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rZyi2-0008m4-Vb; Tue, 13 Feb 2024 19:44:54 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=DVjGUjdm8pNlCRfHncMDmo1GFwUsywzB/AtKRFCKdSk=; b=vcq6m5vZXrBszbAJvXhDLQAAA2 wQ16r4kjHFsHMvr1WWZ4Xkmzq3GhncWaQneudH2aohooIogJLccOUCexNAFdrX5E2g58acYEH7+Pt dm3Y9m3q1ERpclV2ZzpxxhFgrrJyp/lftR2rGwt6L8gPlgFT/klQMx0Q7mK7U8rsRiOckXTgDQ1+9 /GAVkp/u63BOMnapEN6hllROVedNOi9Cgo6MIkwq6OIIYBuAXbSM0TO40GrCKCMPq4uSq8Mwh0pZO 9Q719erDwPOHN5Ww3QKLVVRpS90T8KPZqV/3dvoyEBf9yt/C27rn1YQJg6Q5Tz4GjiMOB49U/Llia EQfUW9Ut58LjDRiRdPZ+ZePWMI+oPf/tOQgdlelBw7kfnAYoVbOYqqRbWfWDUcIM+FPFQM5S/1q8Z V7paq1+xDY6icvuCNFkRUtE4qpa54jDVrfNKUqMLUlqTf641xnvb3ZzYcIVnipI2K36KXpg8jqDq7 o3v3e0i2/rkGpEj5coJhargKYf9Hyt1AWfENrNZiTNbumHl5vnQ7JcJmaBtI2fA5iVCmSY/Oqs5am VQn+3xxGMnFxVW7arsK/9EGzIFnu49kMxwnNO+TF+bgoRdq4iKY0kOmplipI+bg0lDqtWjbZqNCWT PZz0GW/PcbVIdeVEGCp2noYTA89xd/BtLiUAcR1dk=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:50 +0000 Message-Id: <20240213194052.1162753-87-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 86/88] esp.c: keep track of the DRQ state during DMA X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854851515100004 Content-Type: text/plain; charset="utf-8" Currently the DRQ IRQ is updated every time DMA data is sent/received which is both inefficient and causes excessive logging of the DRQ state. Add a new drq_state bool that only updates the DRQ IRQ if its state changes. This commit adds the new drq_state bool to the migration state: since the version number has already been increased earlier in the series, there is no need to repeat it again here. The DRQ IRQ is (currently) only used for PDMA transfers which already have a migration break in this series so there are no problems setting its value post-load. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-87-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 15 +++++++++++---- include/hw/scsi/esp.h | 1 + 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index fb68606f00..04615d8b5f 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -62,14 +62,20 @@ static void esp_lower_irq(ESPState *s) =20 static void esp_raise_drq(ESPState *s) { - qemu_irq_raise(s->drq_irq); - trace_esp_raise_drq(); + if (!(s->drq_state)) { + qemu_irq_raise(s->drq_irq); + trace_esp_raise_drq(); + s->drq_state =3D true; + } } =20 static void esp_lower_drq(ESPState *s) { - qemu_irq_lower(s->drq_irq); - trace_esp_lower_drq(); + if (s->drq_state) { + qemu_irq_lower(s->drq_irq); + trace_esp_lower_drq(); + s->drq_state =3D false; + } } =20 void esp_dma_enable(ESPState *s, int irq, int level) @@ -1358,6 +1364,7 @@ const VMStateDescription vmstate_esp =3D { VMSTATE_UINT8_TEST(mig_ti_cmd, ESPState, esp_is_between_version_5_and_6), VMSTATE_UINT8_TEST(lun, ESPState, esp_is_version_6), + VMSTATE_BOOL(drq_state, ESPState), VMSTATE_END_OF_LIST() }, }; diff --git a/include/hw/scsi/esp.h b/include/hw/scsi/esp.h index c6e8b64e20..533d856aa3 100644 --- a/include/hw/scsi/esp.h +++ b/include/hw/scsi/esp.h @@ -26,6 +26,7 @@ struct ESPState { uint8_t wregs[ESP_REGS]; qemu_irq irq; qemu_irq drq_irq; + bool drq_state; uint8_t chip_id; bool tchi_written; int32_t ti_size; --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 170785514292051.57498639203732; Tue, 13 Feb 2024 12:12:22 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZyzK-0002pD-U7; Tue, 13 Feb 2024 15:02:45 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZyy1-0001em-Am for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:51 +0000 Message-Id: <20240213194052.1162753-88-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 87/88] esp.c: switch TypeInfo registration to use DEFINE_TYPES() macro X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707855144348100003 The use of the DEFINE_TYPES() macro will soon be recommended over the use of calling type_init() directly. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20240112125420.514425-88-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 39 +++++++++++++++++---------------------- 1 file changed, 17 insertions(+), 22 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 04615d8b5f..b8762d5ee0 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -1549,14 +1549,6 @@ static void sysbus_esp_class_init(ObjectClass *klass= , void *data) set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); } =20 -static const TypeInfo sysbus_esp_info =3D { - .name =3D TYPE_SYSBUS_ESP, - .parent =3D TYPE_SYS_BUS_DEVICE, - .instance_init =3D sysbus_esp_init, - .instance_size =3D sizeof(SysBusESPState), - .class_init =3D sysbus_esp_class_init, -}; - static void esp_finalize(Object *obj) { ESPState *s =3D ESP(obj); @@ -1582,19 +1574,22 @@ static void esp_class_init(ObjectClass *klass, void= *data) set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); } =20 -static const TypeInfo esp_info =3D { - .name =3D TYPE_ESP, - .parent =3D TYPE_DEVICE, - .instance_init =3D esp_init, - .instance_finalize =3D esp_finalize, - .instance_size =3D sizeof(ESPState), - .class_init =3D esp_class_init, +static const TypeInfo esp_info_types[] =3D { + { + .name =3D TYPE_SYSBUS_ESP, + .parent =3D TYPE_SYS_BUS_DEVICE, + .instance_init =3D sysbus_esp_init, + .instance_size =3D sizeof(SysBusESPState), + .class_init =3D sysbus_esp_class_init, + }, + { + .name =3D TYPE_ESP, + .parent =3D TYPE_DEVICE, + .instance_init =3D esp_init, + .instance_finalize =3D esp_finalize, + .instance_size =3D sizeof(ESPState), + .class_init =3D esp_class_init, + }, }; =20 -static void esp_register_types(void) -{ - type_register_static(&sysbus_esp_info); - type_register_static(&esp_info); -} - -type_init(esp_register_types) +DEFINE_TYPES(esp_info_types) --=20 2.39.2 From nobody Tue Nov 26 10:20:55 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 13 Feb 2024 19:40:52 +0000 Message-Id: <20240213194052.1162753-89-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> References: <20240213194052.1162753-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bb2:1300:c500:f104:bc51:e670 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 88/88] esp.c: add my copyright to the file X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1707854751218100005 Content-Type: text/plain; charset="utf-8" This series has involved rewriting and/or updating a considerable part of t= he ESP emulation so update the copyright in esp.c to reflect this. Signed-off-by: Mark Cave-Ayland Tested-by: Helge Deller Tested-by: Thomas Huth Message-Id: <20240112125420.514425-89-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index b8762d5ee0..590ff99744 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -3,6 +3,7 @@ * * Copyright (c) 2005-2006 Fabrice Bellard * Copyright (c) 2012 Herve Poussineau + * Copyright (c) 2023 Mark Cave-Ayland * * Permission is hereby granted, free of charge, to any person obtaining a= copy * of this software and associated documentation files (the "Software"), t= o deal --=20 2.39.2