From nobody Sat Sep 21 07:45:16 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 1705064736697463.4849441715304; Fri, 12 Jan 2024 05:05:36 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rOH9X-0002FO-Hp; Fri, 12 Jan 2024 08:00:52 -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 1rOH9R-0001ya-AJ for qemu-devel@nongnu.org; Fri, 12 Jan 2024 08:00:46 -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 1rOH9N-0001Gj-9H for qemu-devel@nongnu.org; Fri, 12 Jan 2024 08:00:44 -0500 Received: from [2a02:8012:c93d:0:260e:bf57:a4e9:8142] (helo=cheesecake.fritz.box) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rOH5i-0008jM-CU; Fri, 12 Jan 2024 12:56:58 +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=8xI8vflAYA1yRD6nzOMwUkXrNNBU14YuiIIZilCh/3E=; b=lCypg7INoZMSHcEd7uuNemxwoT 6LpWivSzldzTjCDHPpp7QDyF/bVCiHpwlQ7vc/7wTTFej1p84Rr3Mp4x564bJJs6fSF5Rq5nFmB6F DPHLAzcAEcdKjXdcTR4HrayqQ+vzO9DUhFVbCDmHmmTKTZok6e3sN8zkclSh/e0GALnKNWXANRgCM um8VIOSGbijuzE6QLMBPCFc9sEhtz0TixTw+WfAcOiTYXvBLX1JncuDU2RX/V2W8FeNLWBgKDcH8k L5nyi5b1oEbiMQ6Fa8/0YHABVjd77X0bahEyKfp9qg9S1PwfBXJi6k64sZOu4SGWs6eEHQp3ktPnq 4wFJtv4B8hHk4YCWR4qxzaktGdWOdFqIFi4qPw7Pxg1K63yDXrttld+9wmULIVQjN+diR8Q/GpNaw 7zB9aNLVpducY4VjYvKYxOZ26gXuhK8+Wrc5ncpmgW+dW2YFbAg72QIZDRE6vLHFMNYF0UrKkuwCC mzoj6wTO/hgUvOz1Zn+g0p7/m3HLU83ndQVpXwabK6ug3PF/r77qqS8TbtP6Xi6nDhSpRzEwDvzV+ eNuZR/yHsLom1TtBWQ66dJ2k/oo8owTHNTz7Qv8w1f+GylBSNPSsoqNPuPhgCzl5AXkzuYqlPisTH XF75JBewCSbsR8vZJYrq1j2gFYPyTHv5BMCWi4Wls=; From: Mark Cave-Ayland To: pbonzini@redhat.com, fam@euphon.net, hpoussin@reactos.org, laurent@vivier.eu, thuth@redhat.com, qemu-devel@nongnu.org Date: Fri, 12 Jan 2024 12:53:46 +0000 Message-Id: <20240112125420.514425-55-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240112125420.514425-1-mark.cave-ayland@ilande.co.uk> References: <20240112125420.514425-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH 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: 1705064737849100001 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 --- 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