From nobody Thu Nov 14 07:08:25 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 17050650626011011.3944979656914; Fri, 12 Jan 2024 05:11:02 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rOHDg-000560-Fq; Fri, 12 Jan 2024 08:05:08 -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 1rOHD0-0004Ud-Rj for qemu-devel@nongnu.org; Fri, 12 Jan 2024 08:04:30 -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 1rOHCy-00039b-MU for qemu-devel@nongnu.org; Fri, 12 Jan 2024 08:04:26 -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 1rOH5d-0008jM-IZ; Fri, 12 Jan 2024 12:56:53 +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=metDBkUl6dTkUgNCecnTDKJZsWyDSk6gx8iev0W1uCQ=; b=X/WXD1dIpBq8I4F2lg79t7rK3A jPucSr27fhhmyUj9T/pTuYno8jGCh1W4yzQoSxGPYRbg8EsJ4R84eRckKdE9bjuEBRDEIEleYptEu KPjpx12e9JGanthTLw1+GvZsu6pKXP+yzkiOiktJl2A417SDWf/UX/QTpa3az7/tdrszhErPoSgHa fxAGDu837XOdw1Gt3uWwtUpxkO/MhnntxXcUIDk5YYXO+RNbP/0JwKGESR6bQVXJTIzQyLljOfn2L agDd/TFE/MLdoIXcWYdtjhHFNnBjRw9pVa/MqnDwUunoOnIa4lr0ZD2kDV2SSJfZA+ocCn2AGwig6 VbYLQSkevFpkUmWpiyDF/z7tpYZQcFpXqjOXx/OaMivrUbqKMgdR2h/v35UC1qLyp3/AXIf92g0h4 HdNjqtraq0CbI+Ak7k37Ng7J9E8fO28QaztzTh01UG3+WC422XtsFRGlKw7YSUs+Prb7uKi1RRuAf W5wwj2BEQoTzwqTi8jzuAtDmALKivayo0mDVLycJxFxDTwSERtAp+5G53dRpsdYZpH8rCiXGQxq3j fP8q2wwC6LRSaqhu3qK9QAh3zYPEzwHPsikJ65FEJKpC7M3FCy6BgFoFmLTyPFjhPaV3OGC63NdPl M645jSAAs4LHg3SOdxKoyD5qylcfL8k6Oha+awHL0=; 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 12:53:44 +0000 Message-Id: <20240112125420.514425-53-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 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: 1705065063409100005 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 --- 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