From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=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 1712240830451672.608573867384; Thu, 4 Apr 2024 07:27:10 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rsO2g-0004ER-R9; Thu, 04 Apr 2024 10:26:14 -0400 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 1rsO2Z-00045Y-7D for qemu-devel@nongnu.org; Thu, 04 Apr 2024 10:26:07 -0400 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 1rsO2W-00062N-FP for qemu-devel@nongnu.org; Thu, 04 Apr 2024 10:26:06 -0400 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 1rsO1U-000Bmt-3i; Thu, 04 Apr 2024 15:25:04 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:Content-Type: MIME-Version:References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To: Cc: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=OUFNvM+qAzbqKKg2MdX8r2zHUUV7uxQBgRO0uH1Fn6A=; b=ZeisTYuX1d7CkjXTwatdp4Dwu+ fl7bzpEBNRWQDfmnDlbWvtn+iez9JBzC6pR2CLB4Iw65CqUhPD6MY0gLvsLxKGl4GhFurlXY9q6MO JoSKCyJw3JI3Jqt0I5AyJg3FCSVzW/4ZZJlO6jl3E/deYbZeeQlqpQ5gIHvFCPZNpPb/aYgdoVlOz OwRb3SNYj9gOtK1ig3/UrW7hLAKgpTXe/uWMLI63R+TGDf6mVS161D7uLHsKce4JDZJaL6Oo2PZ+p /rb+cENGMXFKpi4xzS2/abIoBnPVKU1S1IZSBP1O+muFUZ1/WQMxexv7VcvCMjR5u5cEaWzjaLD22 rEZOYwGNE1B20XzK7lAhO6+QJ2O8mK/+7p838NAxssqSpVNXXzgKT1DiCo5aVn0vWjHOS2i0iK761 YblrMa1NDlYVYtCwWUFNUuhr4p4GDVWhIqQbsYi7tk+FJO0KkA5kV6NINYt3+r5rHrO5CcwT6U0WJ m3yIYFOb+kugHcwLfKxql6jb5HgDBAXBcEfHDaOENMN8lF/6dP+xyARHH8P/wUzmK3os3ioChnbc0 FqiZqdx5VFBQcOHjudE2Pa+7lE9NatA6gyW09SZZleXwrSXCcojSK4GUQNU062mEHx+Hi/GrVF6N5 jWVAeaV0Z1s7Wkz0PmfqYe9gVoLy8bcyUrJOp918s=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:23 +0100 Message-Id: <20240404142539.711134-2-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 01/17] esp.c: move esp_fifo_pop_buf() internals to new esp_fifo8_pop_buf() 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240831420100003 Update esp_fifo_pop_buf() to be a simple wrapper onto the new esp_fifo8_pop= _buf() function. Signed-off-by: Mark Cave-Ayland Reviewed-by: Paolo Bonzini Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20240324191707.623175-2-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 590ff99744..1b7b118a0b 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -125,7 +125,7 @@ static uint8_t esp_fifo_pop(Fifo8 *fifo) return fifo8_pop(fifo); } =20 -static uint32_t esp_fifo_pop_buf(Fifo8 *fifo, uint8_t *dest, int maxlen) +static uint32_t esp_fifo8_pop_buf(Fifo8 *fifo, uint8_t *dest, int maxlen) { const uint8_t *buf; uint32_t n, n2; @@ -155,6 +155,11 @@ static uint32_t esp_fifo_pop_buf(Fifo8 *fifo, uint8_t = *dest, int maxlen) return n; } =20 +static uint32_t esp_fifo_pop_buf(Fifo8 *fifo, uint8_t *dest, int maxlen) +{ + return esp_fifo8_pop_buf(fifo, dest, maxlen); +} + static uint32_t esp_get_tc(ESPState *s) { uint32_t dmalen; --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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: Thu, 4 Apr 2024 15:25:24 +0100 Message-Id: <20240404142539.711134-3-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 02/17] esp.c: replace esp_fifo_pop_buf() with esp_fifo8_pop_buf() in do_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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240817502100003 The aim is to restrict the esp_fifo_*() functions so that they only operate= on the hardware FIFO. When reading from cmdfifo in do_command_phase() use the underlying esp_fifo8_pop_buf() function directly. Signed-off-by: Mark Cave-Ayland Reviewed-by: Paolo Bonzini Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20240324191707.623175-3-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 1b7b118a0b..ff51145da7 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -280,7 +280,7 @@ static void do_command_phase(ESPState *s) if (!cmdlen || !s->current_dev) { return; } - esp_fifo_pop_buf(&s->cmdfifo, buf, cmdlen); + esp_fifo8_pop_buf(&s->cmdfifo, buf, cmdlen); =20 current_lun =3D scsi_device_find(&s->bus, 0, s->current_dev->id, s->lu= n); if (!current_lun) { --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=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 171224086696614.540033812734123; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:25 +0100 Message-Id: <20240404142539.711134-4-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 03/17] esp.c: replace esp_fifo_pop_buf() with esp_fifo8_pop_buf() in do_message_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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240867558100001 The aim is to restrict the esp_fifo_*() functions so that they only operate= on the hardware FIFO. When reading from cmdfifo in do_message_phase() use the underlying esp_fifo8_pop_buf() function directly. Signed-off-by: Mark Cave-Ayland Reviewed-by: Paolo Bonzini Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20240324191707.623175-4-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 ff51145da7..9386704a58 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -325,7 +325,7 @@ static void do_message_phase(ESPState *s) /* Ignore extended messages for now */ if (s->cmdfifo_cdb_offset) { int len =3D MIN(s->cmdfifo_cdb_offset, fifo8_num_used(&s->cmdfifo)= ); - esp_fifo_pop_buf(&s->cmdfifo, NULL, len); + esp_fifo8_pop_buf(&s->cmdfifo, NULL, len); s->cmdfifo_cdb_offset =3D 0; } } --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:26 +0100 Message-Id: <20240404142539.711134-5-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 04/17] esp.c: replace cmdfifo use of esp_fifo_pop() in do_message_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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240855497100001 Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Paolo Bonzini Message-Id: <20240324191707.623175-5-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 9386704a58..5b169b3720 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -315,7 +315,8 @@ static void do_command_phase(ESPState *s) static void do_message_phase(ESPState *s) { if (s->cmdfifo_cdb_offset) { - uint8_t message =3D esp_fifo_pop(&s->cmdfifo); + uint8_t message =3D fifo8_is_empty(&s->cmdfifo) ? 0 : + fifo8_pop(&s->cmdfifo); =20 trace_esp_do_identify(message); s->lun =3D message & 7; --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=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 1712240925404388.4519820860904; Thu, 4 Apr 2024 07:28:45 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rsO2m-0004Ks-4c; Thu, 04 Apr 2024 10:26:20 -0400 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 1rsO2k-0004KT-Cu for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:27 +0100 Message-Id: <20240404142539.711134-6-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 05/17] esp.c: change esp_fifo_push() to take 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240925781100001 Now that all users of esp_fifo_push() operate on the main FIFO there is no = need to pass the FIFO explicitly. Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Paolo Bonzini Message-Id: <20240324191707.623175-6-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 5b169b3720..7e3338815b 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -106,14 +106,14 @@ void esp_request_cancelled(SCSIRequest *req) } } =20 -static void esp_fifo_push(Fifo8 *fifo, uint8_t val) +static void esp_fifo_push(ESPState *s, uint8_t val) { - if (fifo8_num_used(fifo) =3D=3D fifo->capacity) { + if (fifo8_num_used(&s->fifo) =3D=3D s->fifo.capacity) { trace_esp_error_fifo_overrun(); return; } =20 - fifo8_push(fifo, val); + fifo8_push(&s->fifo, val); } =20 static uint8_t esp_fifo_pop(Fifo8 *fifo) @@ -229,7 +229,7 @@ static void esp_pdma_write(ESPState *s, uint8_t val) return; } =20 - esp_fifo_push(&s->fifo, val); + esp_fifo_push(s, val); =20 dmalen--; esp_set_tc(s, dmalen); @@ -1240,7 +1240,7 @@ void esp_reg_write(ESPState *s, uint32_t saddr, uint6= 4_t val) break; case ESP_FIFO: if (!fifo8_is_full(&s->fifo)) { - esp_fifo_push(&s->fifo, val); + esp_fifo_push(s, val); } esp_do_nodma(s); break; --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=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 1712240905756168.8850652597415; Thu, 4 Apr 2024 07:28:25 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rsO2r-0004Nv-85; Thu, 04 Apr 2024 10:26:25 -0400 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 1rsO2q-0004NJ-71 for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:28 +0100 Message-Id: <20240404142539.711134-7-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 06/17] esp.c: change esp_fifo_pop() to take 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240907672100003 Now that all users of esp_fifo_pop() operate on the main FIFO there is no n= eed to pass the FIFO explicitly. Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Paolo Bonzini Message-Id: <20240324191707.623175-7-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 7e3338815b..d474268438 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -116,13 +116,13 @@ static void esp_fifo_push(ESPState *s, uint8_t val) fifo8_push(&s->fifo, val); } =20 -static uint8_t esp_fifo_pop(Fifo8 *fifo) +static uint8_t esp_fifo_pop(ESPState *s) { - if (fifo8_is_empty(fifo)) { + if (fifo8_is_empty(&s->fifo)) { return 0; } =20 - return fifo8_pop(fifo); + return fifo8_pop(&s->fifo); } =20 static uint32_t esp_fifo8_pop_buf(Fifo8 *fifo, uint8_t *dest, int maxlen) @@ -217,7 +217,7 @@ static uint8_t esp_pdma_read(ESPState *s) { uint8_t val; =20 - val =3D esp_fifo_pop(&s->fifo); + val =3D esp_fifo_pop(s); return val; } =20 @@ -1184,7 +1184,7 @@ uint64_t esp_reg_read(ESPState *s, uint32_t saddr) =20 switch (saddr) { case ESP_FIFO: - s->rregs[ESP_FIFO] =3D esp_fifo_pop(&s->fifo); + s->rregs[ESP_FIFO] =3D esp_fifo_pop(s); val =3D s->rregs[ESP_FIFO]; break; case ESP_RINTR: --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=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 1712240962463414.75262567945265; Thu, 4 Apr 2024 07:29:22 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rsO2x-0004Rf-Oh; Thu, 04 Apr 2024 10:26:31 -0400 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 1rsO2t-0004QF-WF for qemu-devel@nongnu.org; Thu, 04 Apr 2024 10:26:29 -0400 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 1rsO2r-00065D-Qh for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:29 +0100 Message-Id: <20240404142539.711134-8-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 07/17] esp.c: use esp_fifo_push() instead of fifo8_push() 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240964029100003 There are still a few places that use fifo8_push() instead of esp_fifo_push= () in order to push a value into the FIFO. Update those places to use esp_fifo_pu= sh() instead. Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Paolo Bonzini Message-Id: <20240324191707.623175-8-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index d474268438..8d2d36d56c 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -858,7 +858,7 @@ static void esp_do_nodma(ESPState *s) return; } if (fifo8_is_empty(&s->fifo)) { - fifo8_push(&s->fifo, s->async_buf[0]); + esp_fifo_push(s, s->async_buf[0]); s->async_buf++; s->async_len--; s->ti_size--; @@ -881,7 +881,7 @@ static void esp_do_nodma(ESPState *s) case STAT_ST: switch (s->rregs[ESP_CMD]) { case CMD_ICCS: - fifo8_push(&s->fifo, s->status); + esp_fifo_push(s, s->status); esp_set_phase(s, STAT_MI); =20 /* Process any message in phase data */ @@ -893,7 +893,7 @@ static void esp_do_nodma(ESPState *s) case STAT_MI: switch (s->rregs[ESP_CMD]) { case CMD_ICCS: - fifo8_push(&s->fifo, 0); + esp_fifo_push(s, 0); =20 /* Raise end of command interrupt */ s->rregs[ESP_RINTR] |=3D INTR_FC; --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=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 1712240832225592.4797267709928; Thu, 4 Apr 2024 07:27:12 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rsO2w-0004Qt-TO; Thu, 04 Apr 2024 10:26:30 -0400 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 1rsO2t-0004QE-W9 for qemu-devel@nongnu.org; Thu, 04 Apr 2024 10:26:29 -0400 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 1rsO2r-00065N-RN for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:30 +0100 Message-Id: <20240404142539.711134-9-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 08/17] esp.c: change esp_fifo_pop_buf() to take 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240833411100007 Now that all users of esp_fifo_pop_buf() operate on the main FIFO there is = no need to pass the FIFO explicitly. Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Paolo Bonzini Message-Id: <20240324191707.623175-9-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 8d2d36d56c..83b621ee0f 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -155,9 +155,9 @@ static uint32_t esp_fifo8_pop_buf(Fifo8 *fifo, uint8_t = *dest, int maxlen) return n; } =20 -static uint32_t esp_fifo_pop_buf(Fifo8 *fifo, uint8_t *dest, int maxlen) +static uint32_t esp_fifo_pop_buf(ESPState *s, uint8_t *dest, int maxlen) { - return esp_fifo8_pop_buf(fifo, dest, maxlen); + return esp_fifo8_pop_buf(&s->fifo, dest, maxlen); } =20 static uint32_t esp_get_tc(ESPState *s) @@ -459,7 +459,7 @@ static void esp_do_dma(ESPState *s) s->dma_memory_read(s->dma_opaque, buf, len); esp_set_tc(s, esp_get_tc(s) - len); } else { - len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D esp_fifo_pop_buf(s, buf, fifo8_num_used(&s->fifo)); len =3D MIN(fifo8_num_free(&s->cmdfifo), len); esp_raise_drq(s); } @@ -515,7 +515,7 @@ static void esp_do_dma(ESPState *s) fifo8_push_all(&s->cmdfifo, buf, len); esp_set_tc(s, esp_get_tc(s) - len); } else { - len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D esp_fifo_pop_buf(s, buf, fifo8_num_used(&s->fifo)); len =3D MIN(fifo8_num_free(&s->cmdfifo), len); fifo8_push_all(&s->cmdfifo, buf, len); esp_raise_drq(s); @@ -549,7 +549,7 @@ static void esp_do_dma(ESPState *s) /* 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); + len =3D esp_fifo_pop_buf(s, s->async_buf, len); esp_raise_drq(s); } =20 @@ -713,7 +713,7 @@ static void esp_nodma_ti_dataout(ESPState *s) } 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); + esp_fifo_pop_buf(s, s->async_buf, len); s->async_buf +=3D len; s->async_len -=3D len; s->ti_size +=3D len; @@ -738,7 +738,7 @@ static void esp_do_nodma(ESPState *s) switch (s->rregs[ESP_CMD]) { case CMD_SELATN: /* Copy FIFO into cmdfifo */ - len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D esp_fifo_pop_buf(s, buf, fifo8_num_used(&s->fifo)); len =3D MIN(fifo8_num_free(&s->cmdfifo), len); fifo8_push_all(&s->cmdfifo, buf, len); =20 @@ -757,7 +757,7 @@ static void esp_do_nodma(ESPState *s) =20 case CMD_SELATNS: /* Copy one byte from FIFO into cmdfifo */ - len =3D esp_fifo_pop_buf(&s->fifo, buf, 1); + len =3D esp_fifo_pop_buf(s, buf, 1); len =3D MIN(fifo8_num_free(&s->cmdfifo), len); fifo8_push_all(&s->cmdfifo, buf, len); =20 @@ -774,7 +774,7 @@ static void esp_do_nodma(ESPState *s) =20 case CMD_TI: /* Copy FIFO into cmdfifo */ - len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D esp_fifo_pop_buf(s, buf, fifo8_num_used(&s->fifo)); len =3D MIN(fifo8_num_free(&s->cmdfifo), len); fifo8_push_all(&s->cmdfifo, buf, len); =20 @@ -792,7 +792,7 @@ static void esp_do_nodma(ESPState *s) switch (s->rregs[ESP_CMD]) { case CMD_TI: /* Copy FIFO into cmdfifo */ - len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D esp_fifo_pop_buf(s, buf, fifo8_num_used(&s->fifo)); len =3D MIN(fifo8_num_free(&s->cmdfifo), len); fifo8_push_all(&s->cmdfifo, buf, len); =20 @@ -821,7 +821,7 @@ static void esp_do_nodma(ESPState *s) case CMD_SEL | CMD_DMA: case CMD_SELATN | CMD_DMA: /* Copy FIFO into cmdfifo */ - len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D esp_fifo_pop_buf(s, buf, fifo8_num_used(&s->fifo)); len =3D MIN(fifo8_num_free(&s->cmdfifo), len); fifo8_push_all(&s->cmdfifo, buf, len); =20 @@ -836,7 +836,7 @@ static void esp_do_nodma(ESPState *s) case CMD_SEL: case CMD_SELATN: /* FIFO already contain entire CDB: copy to cmdfifo and execut= e */ - len =3D esp_fifo_pop_buf(&s->fifo, buf, fifo8_num_used(&s->fif= o)); + len =3D esp_fifo_pop_buf(s, buf, fifo8_num_used(&s->fifo)); len =3D MIN(fifo8_num_free(&s->cmdfifo), len); fifo8_push_all(&s->cmdfifo, buf, len); =20 --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=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 1712240887453729.5220000447486; Thu, 4 Apr 2024 07:28:07 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rsO34-0004YA-Bt; Thu, 04 Apr 2024 10:26:38 -0400 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 1rsO32-0004W7-KS for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:31 +0100 Message-Id: <20240404142539.711134-10-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 09/17] esp.c: introduce esp_fifo_push_buf() function for pushing to the 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240889619100003 Instead of pushing data into the FIFO directly with fifo8_push_all(), add a= new esp_fifo_push_buf() function and use it accordingly. Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Paolo Bonzini Message-Id: <20240324191707.623175-10-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 83b621ee0f..1aac8f5564 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -116,6 +116,11 @@ static void esp_fifo_push(ESPState *s, uint8_t val) fifo8_push(&s->fifo, val); } =20 +static void esp_fifo_push_buf(ESPState *s, uint8_t *buf, int len) +{ + fifo8_push_all(&s->fifo, buf, len); +} + static uint8_t esp_fifo_pop(ESPState *s) { if (fifo8_is_empty(&s->fifo)) { @@ -601,7 +606,7 @@ static void esp_do_dma(ESPState *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); + esp_fifo_push_buf(s, s->async_buf, len); esp_raise_drq(s); } =20 @@ -650,7 +655,7 @@ static void esp_do_dma(ESPState *s) if (s->dma_memory_write) { s->dma_memory_write(s->dma_opaque, buf, len); } else { - fifo8_push_all(&s->fifo, buf, len); + esp_fifo_push_buf(s, buf, len); } =20 esp_set_tc(s, esp_get_tc(s) - len); @@ -685,7 +690,7 @@ static void esp_do_dma(ESPState *s) if (s->dma_memory_write) { s->dma_memory_write(s->dma_opaque, buf, len); } else { - fifo8_push_all(&s->fifo, buf, len); + esp_fifo_push_buf(s, buf, len); } =20 esp_set_tc(s, esp_get_tc(s) - len); --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=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 171224087561974.42772990383503; Thu, 4 Apr 2024 07:27:55 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rsO34-0004X8-5s; 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bh=oKWH6eQrfAJaf+JSRJJa+vY+/duho+xeGgHU0OeZdrw=; b=PDewGj71JNTQngcNpcuz6/1ddY MsnLEKbzAJOafCoaXVVkvYJJ+LBTMXYLcMa8I5rG8fECyWq+VYGtSexnzDdQoT024w2y4/U7XGp2U YUPZM6vVnbqgOjQ9tLsnLbmvrEyFSQkX+25SatZqWjNFWaurU2Xf3Otx1sDGlfYTlECDKl8piUpk0 JwbM46JVUqHY7MVpPzI4bUmWcIHQ13k46GVAVJTPmo4Lw0DdJp0vyVtbXeNP/KWT192blub8TNqs7 T6cwlZ+lMCGfdmyBQFSJfwAMoU7jEBO6YUBN9dVLxNfJ/y386dSM3XwnkibdY4aUIXA08AO2EIXKw 3fYANkBgt06x6qPypMzbFXyPI3WibDfTtJdJ1kYBnwCFp0gTfrk2i6XanUtNz95QUtf93Mw48i4gr rLivWCtIl+lS6hdGyQicmor+zAfWbfKsoLUyTY7iyB6EH7m9jphNOb1pUUED+GjvUdkBpszM+5F5O JUZAnfDUzkzyxpjBhZt0dFYvSC62gfKTugDbF5Pcx3AYnSknLLXcmtn9SkaB7AkLB3uEyhCTAi/HB ccAwOboABkHnGma+wVyMeHbebcmLbH2fWoOhEjRyAeZRrFgjxhsU9D+enNze7S+THvRCkz5nMoLbq XZ5Aqct7bXjbmEQCgm8B7X0P9jLiRr7Pc0rl+RoMs=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:32 +0100 Message-Id: <20240404142539.711134-11-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 10/17] esp.c: don't assert() if FIFO empty when executing non-DMA SELATNS 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240877584100003 The current logic assumes that at least 1 byte is present in the FIFO when executing a non-DMA SELATNS command, but this may not be the case if the guest executes an invalid ESP command sequence. Reported-by: Chuhong Yuan Signed-off-by: Mark Cave-Ayland Reviewed-by: Paolo Bonzini Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20240324191707.623175-11-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 1aac8f5564..f3aa5364cf 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -762,7 +762,8 @@ static void esp_do_nodma(ESPState *s) =20 case CMD_SELATNS: /* Copy one byte from FIFO into cmdfifo */ - len =3D esp_fifo_pop_buf(s, buf, 1); + len =3D esp_fifo_pop_buf(s, buf, + MIN(fifo8_num_used(&s->fifo), 1)); len =3D MIN(fifo8_num_free(&s->cmdfifo), len); fifo8_push_all(&s->cmdfifo, buf, len); =20 --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:33 +0100 Message-Id: <20240404142539.711134-12-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 11/17] esp.c: rework esp_cdb_length() into esp_cdb_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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240819367100012 The esp_cdb_length() function is only used as part of a calculation to dete= rmine whether the cmdfifo contains an entire SCSI CDB. Rework esp_cdb_length() in= to a new esp_cdb_ready() function which both enables us to handle the case where scsi_cdb_length() returns -1, plus simplify the logic for its callers. Suggested-by: Paolo Bonzini Signed-off-by: Mark Cave-Ayland Reviewed-by: Paolo Bonzini Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20240324191707.623175-12-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 30 ++++++++++++++---------------- 1 file changed, 14 insertions(+), 16 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index f3aa5364cf..f47abc36d6 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -425,20 +425,20 @@ static void write_response(ESPState *s) } } =20 -static int esp_cdb_length(ESPState *s) +static bool esp_cdb_ready(ESPState *s) { + int len =3D fifo8_num_used(&s->cmdfifo) - s->cmdfifo_cdb_offset; const uint8_t *pbuf; - int cmdlen, len; + int cdblen; =20 - cmdlen =3D fifo8_num_used(&s->cmdfifo); - if (cmdlen < s->cmdfifo_cdb_offset) { - return 0; + if (len <=3D 0) { + return false; } =20 - pbuf =3D fifo8_peek_buf(&s->cmdfifo, cmdlen, NULL); - len =3D scsi_cdb_length((uint8_t *)&pbuf[s->cmdfifo_cdb_offset]); + pbuf =3D fifo8_peek_buf(&s->cmdfifo, len, NULL); + cdblen =3D scsi_cdb_length((uint8_t *)&pbuf[s->cmdfifo_cdb_offset]); =20 - return len; + return cdblen < 0 ? false : (len >=3D cdblen); } =20 static void esp_dma_ti_check(ESPState *s) @@ -806,10 +806,9 @@ static void esp_do_nodma(ESPState *s) trace_esp_handle_ti_cmd(cmdlen); =20 /* 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); + if (esp_cdb_ready(s)) { + /* Command has been received */ + do_cmd(s); } else { /* * If data was transferred from the FIFO then raise bus @@ -832,10 +831,9 @@ static void esp_do_nodma(ESPState *s) 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 - fifo8_num_used(&s->cmdfifo) - s->cmdfifo_cdb_offset) { - /* Command has been received */ - do_cmd(s); + if (esp_cdb_ready(s)) { + /* Command has been received */ + do_cmd(s); } break; =20 --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=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 1712240817695354.48566838243084; Thu, 4 Apr 2024 07:26:57 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rsO38-0004st-Er; Thu, 04 Apr 2024 10:26:42 -0400 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 1rsO36-0004ky-LD for qemu-devel@nongnu.org; Thu, 04 Apr 2024 10:26:40 -0400 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 1rsO35-00068g-1T for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:34 +0100 Message-Id: <20240404142539.711134-13-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 12/17] esp.c: prevent cmdfifo overflow in esp_cdb_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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240819358100011 During normal use the cmdfifo will never wrap internally and cmdfifo_cdb_of= fset will always indicate the start of the SCSI CDB. However it is possible that= a malicious guest could issue an invalid ESP command sequence such that cmdfi= fo wraps internally and cmdfifo_cdb_offset could point beyond the end of the F= IFO data buffer. Add an extra check to fifo8_peek_buf() to ensure that if the cmdfifo has wr= apped internally then esp_cdb_ready() will exit rather than allow scsi_cdb_length= () to access data outside the cmdfifo data buffer. Reported-by: Chuhong Yuan Signed-off-by: Mark Cave-Ayland Reviewed-by: Paolo Bonzini Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20240324191707.623175-13-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index f47abc36d6..d8db33b921 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -429,13 +429,23 @@ static bool esp_cdb_ready(ESPState *s) { int len =3D fifo8_num_used(&s->cmdfifo) - s->cmdfifo_cdb_offset; const uint8_t *pbuf; + uint32_t n; int cdblen; =20 if (len <=3D 0) { return false; } =20 - pbuf =3D fifo8_peek_buf(&s->cmdfifo, len, NULL); + pbuf =3D fifo8_peek_buf(&s->cmdfifo, len, &n); + if (n < len) { + /* + * In normal use the cmdfifo should never wrap, but include this c= heck + * to prevent a malicious guest from reading past the end of the + * cmdfifo data buffer below + */ + return false; + } + cdblen =3D scsi_cdb_length((uint8_t *)&pbuf[s->cmdfifo_cdb_offset]); =20 return cdblen < 0 ? false : (len >=3D cdblen); --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=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 1712240932066156.35074100092208; Thu, 4 Apr 2024 07:28:52 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rsO3K-00055u-KC; Thu, 04 Apr 2024 10:26:54 -0400 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 1rsO3H-00050X-Pf for qemu-devel@nongnu.org; Thu, 04 Apr 2024 10:26:52 -0400 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 1rsO3G-00068q-8L for qemu-devel@nongnu.org; Thu, 04 Apr 2024 10:26:51 -0400 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 1rsO2A-000Bmt-NA; Thu, 04 Apr 2024 15:25:43 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:Content-Type: MIME-Version:References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To: Cc: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=xGkCtyfhMgv5LN6nqN6/ElxC0odgNGKQ/Amx41/YI1M=; b=H3Cq90jXIzQ1JYN6lyrScVmAKn P/4FHUC8LUX9kHVVf0uEy3CbsiRW1y3P3pYbQuGbn95+6VaLrqnuSdb+OHJ8Bwh5pqwX0COFf3p5g EeseoWNl9TJ7y2dS3GUX2QFPmybNl+qbC7l+opbOLarougUNkrts2JWSgV+sJ1hzP7cvFaY+pG+Ta mYPmi4OYis7IqKyjVQy4vVGu/JpdP2FDVkdOMWGxi462mUT2J1tsZRub+K4r0MyGwgqU5PCnNoE+2 gL475JnLipodALtF96p5+g8uXik9ud9DyJyw1yZMzEvO7Nfn00/WGA3XVTwmp0A3x+iVA/QlvjgN6 /+k6xUfKx/nGk1NRvZ8wBAEZUKlM8NMRnge02GaGXJyzmLQnCUXq4kKcQX9Cfm7t8wtryDT8D61LP i6AbJgnaJTBVaduJcFRTln8FofgGDcJfsg6X6Zz3sy0I3xDkVn3T8BD6KJjP9hUb7mD82e5ZeXzvh gt3wiPi+eV0JiGN8SZxl2o4KtKHSHmNYAayTOsDXxxqGzGFKYISnAQ72Eg14yWC+2KU0j/odvw4HZ XK4jlT6/SZS8wAGdW8XPnFt52+vTJMiaYIF7NrVyziK1cZtLH/ESIKiDVEIOMETcD5d8ksc43lPVh snJq03iKDHL81ZJf1mE8HQuAcxGxn2FlyItgUdkF4=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:35 +0100 Message-Id: <20240404142539.711134-14-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 13/17] esp.c: move esp_set_phase() and esp_get_phase() towards the beginning of 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240933798100003 This allows these functions to be used earlier in the file without needing a separate forward declaration. Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Paolo Bonzini Message-Id: <20240324191707.623175-14-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index d8db33b921..9e35c00927 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -79,6 +79,24 @@ static void esp_lower_drq(ESPState *s) } } =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_get_phase(ESPState *s) +{ + return s->rregs[ESP_RSTAT] & 7; +} + void esp_dma_enable(ESPState *s, int irq, int level) { if (level) { @@ -200,24 +218,6 @@ 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_get_phase(ESPState *s) -{ - return s->rregs[ESP_RSTAT] & 7; -} - static uint8_t esp_pdma_read(ESPState *s) { uint8_t val; --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=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 1712240856598966.4074736241226; Thu, 4 Apr 2024 07:27:36 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rsO3W-0005GE-9Q; 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bh=coXnANMghsafE8uP1sD5CawllyACVo682BarUP9QGNc=; b=AS8mxmegJgC88LLv6ipHIAclQd Bt8iYJGox0U0zzx8fakv1NsM8v9DzFzUDtR0NK34ny3MwzjgGTAfzeXOFFRH6wPfsLE8nmedm5Nxf gHJzka/uRJ/UCvgjIFVvdemhnykbQLkmWQiZ0GSFVVmQ7dMOTYZ9ngGMrkdw/Q3iZutP07olNGokh Ew/UZ/TxtTlgLpf/7wa59ifQ4CWdBM1CQXY8h7SATXYmR/sijNd47MLMugNSQ3aT6gcrmFdM1/g02 ktQxSjEZMoEAfz5BI3ERP4/xPiKJ2cl2JR+eZR4DZqKyUXFcxpeYRyT0vrEU3TGzHctJx0lUDDq2Q Y9ziX61pUYnnEEyVweHCydsRUsHVn9mCDDWkqmBYJTasECchLgbieqBZttBhrje5UvWUxYL7n3oNI 1FwLGhFPTdKooh3mmzZZA7iFIh9QjbOwgKPpaFwIFbRgPtiR/eNAdDuy8vQSUXM3p73PEoVMG1YeA Ec5OcpbFqthGUICC5anuSNndTZu8ecSz1ueuU1WAZ3ldjLDBRqNJ4kZAXxHXCUxrranKoylZsDUCp 2yFj4kWI1LsnbI4T6TC36oGVpOXrBvMZ3Z1A9Ze9zEhgwrkEpXAvcpNBMCtkwQcNfiTFT3wZVxEFo 7cVurCZLJTNsOLcteG1xQ/ByxmidMihK3TOry1s8s=; From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:36 +0100 Message-Id: <20240404142539.711134-15-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 14/17] esp.c: introduce esp_update_drq() and update esp_fifo_{push, pop}_buf() to use it 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240857544100007 This new function sets the DRQ line correctly according to the current tran= sfer mode, direction and FIFO contents. Update esp_fifo_push_buf() and esp_fifo_= pop_buf() to use it so that DRQ is always set correctly when reading/writing multiple= bytes to/from the FIFO. Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Paolo Bonzini Message-Id: <20240324191707.623175-15-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 47 insertions(+), 1 deletion(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 9e35c00927..6fd1a12f23 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -124,6 +124,48 @@ void esp_request_cancelled(SCSIRequest *req) } } =20 +static void esp_update_drq(ESPState *s) +{ + bool to_device; + + switch (esp_get_phase(s)) { + case STAT_MO: + case STAT_CD: + case STAT_DO: + to_device =3D true; + break; + + case STAT_DI: + case STAT_ST: + case STAT_MI: + to_device =3D false; + break; + + default: + return; + } + + if (s->dma) { + /* DMA request so update DRQ according to transfer direction */ + if (to_device) { + if (fifo8_num_free(&s->fifo) < 2) { + esp_lower_drq(s); + } else { + esp_raise_drq(s); + } + } else { + if (fifo8_num_used(&s->fifo) < 2) { + esp_lower_drq(s); + } else { + esp_raise_drq(s); + } + } + } else { + /* Not a DMA request */ + esp_lower_drq(s); + } +} + static void esp_fifo_push(ESPState *s, uint8_t val) { if (fifo8_num_used(&s->fifo) =3D=3D s->fifo.capacity) { @@ -137,6 +179,7 @@ static void esp_fifo_push(ESPState *s, uint8_t val) static void esp_fifo_push_buf(ESPState *s, uint8_t *buf, int len) { fifo8_push_all(&s->fifo, buf, len); + esp_update_drq(s); } =20 static uint8_t esp_fifo_pop(ESPState *s) @@ -180,7 +223,10 @@ static uint32_t esp_fifo8_pop_buf(Fifo8 *fifo, uint8_t= *dest, int maxlen) =20 static uint32_t esp_fifo_pop_buf(ESPState *s, uint8_t *dest, int maxlen) { - return esp_fifo8_pop_buf(&s->fifo, dest, maxlen); + uint32_t len =3D esp_fifo8_pop_buf(&s->fifo, dest, maxlen); + + esp_update_drq(s); + return len; } =20 static uint32_t esp_get_tc(ESPState *s) --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:37 +0100 Message-Id: <20240404142539.711134-16-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 15/17] esp.c: update esp_fifo_{push, pop}() to call esp_update_drq() 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240935808100005 This ensures that the DRQ line is always set correctly when reading/writing single bytes to/from the FIFO. Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Paolo Bonzini Message-Id: <20240324191707.623175-16-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 6fd1a12f23..4895181ec1 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -170,10 +170,11 @@ static void esp_fifo_push(ESPState *s, uint8_t val) { if (fifo8_num_used(&s->fifo) =3D=3D s->fifo.capacity) { trace_esp_error_fifo_overrun(); - return; + } else { + fifo8_push(&s->fifo, val); } =20 - fifo8_push(&s->fifo, val); + esp_update_drq(s); } =20 static void esp_fifo_push_buf(ESPState *s, uint8_t *buf, int len) @@ -184,11 +185,16 @@ static void esp_fifo_push_buf(ESPState *s, uint8_t *b= uf, int len) =20 static uint8_t esp_fifo_pop(ESPState *s) { + uint8_t val; + if (fifo8_is_empty(&s->fifo)) { - return 0; + val =3D 0; + } else { + val =3D fifo8_pop(&s->fifo); } =20 - return fifo8_pop(&s->fifo); + esp_update_drq(s); + return val; } =20 static uint32_t esp_fifo8_pop_buf(Fifo8 *fifo, uint8_t *dest, int maxlen) --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=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 1712240910122500.97890697164075; Thu, 4 Apr 2024 07:28:30 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rsO3d-0005bo-RB; Thu, 04 Apr 2024 10:27:13 -0400 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 1rsO3V-0005GJ-6P for qemu-devel@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:38 +0100 Message-Id: <20240404142539.711134-17-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 16/17] esp.c: ensure esp_pdma_write() always calls esp_fifo_push() 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240911694100006 This ensures that esp_update_drq() is called via esp_fifo_push() whenever t= he host uses PDMA to transfer data to a SCSI device. Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Paolo Bonzini Message-Id: <20240324191707.623175-17-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 4895181ec1..04dfd90090 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -282,14 +282,12 @@ static void esp_pdma_write(ESPState *s, uint8_t val) { uint32_t dmalen =3D esp_get_tc(s); =20 - if (dmalen =3D=3D 0) { - return; - } - esp_fifo_push(s, val); =20 - dmalen--; - esp_set_tc(s, dmalen); + if (dmalen && s->drq_state) { + dmalen--; + esp_set_tc(s, dmalen); + } } =20 static int esp_select(ESPState *s) --=20 2.39.2 From nobody Fri May 17 05:16:06 2024 Delivered-To: importer2@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+importer2=patchew.org@nongnu.org; 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From: Mark Cave-Ayland To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Thu, 4 Apr 2024 15:25:39 +0100 Message-Id: <20240404142539.711134-18-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240404142539.711134-1-mark.cave-ayland@ilande.co.uk> References: <20240404142539.711134-1-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: [PULL 17/17] esp.c: remove explicit setting of DRQ within ESP state machine 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1712240911690100005 Content-Type: text/plain; charset="utf-8" Now the esp_update_drq() is called for all reads/writes to the FIFO, there = is no need to manually raise and lower the DRQ signal. Signed-off-by: Mark Cave-Ayland Resolves: https://gitlab.com/qemu-project/qemu/-/issues/611 Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1831 Reviewed-by: Paolo Bonzini Message-Id: <20240324191707.623175-18-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 04dfd90090..5d9b52632e 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -506,7 +506,6 @@ 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; esp_raise_irq(s); - esp_lower_drq(s); } } =20 @@ -526,7 +525,6 @@ static void esp_do_dma(ESPState *s) } else { len =3D esp_fifo_pop_buf(s, buf, fifo8_num_used(&s->fifo)); len =3D MIN(fifo8_num_free(&s->cmdfifo), len); - esp_raise_drq(s); } =20 fifo8_push_all(&s->cmdfifo, buf, len); @@ -583,7 +581,6 @@ static void esp_do_dma(ESPState *s) len =3D esp_fifo_pop_buf(s, buf, fifo8_num_used(&s->fifo)); 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); s->ti_size =3D 0; @@ -615,7 +612,6 @@ static void esp_do_dma(ESPState *s) 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, s->async_buf, len); - esp_raise_drq(s); } =20 s->async_buf +=3D len; @@ -667,7 +663,6 @@ static void esp_do_dma(ESPState *s) /* Copy device data to FIFO */ len =3D MIN(len, fifo8_num_free(&s->fifo)); esp_fifo_push_buf(s, s->async_buf, len); - esp_raise_drq(s); } =20 s->async_buf +=3D len; @@ -733,7 +728,6 @@ static void esp_do_dma(ESPState *s) if (fifo8_num_used(&s->fifo) < 2) { s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); - esp_lower_drq(s); } break; } @@ -1021,9 +1015,6 @@ void esp_command_complete(SCSIRequest *req, size_t re= sid) s->rregs[ESP_RINTR] |=3D INTR_BS; esp_raise_irq(s); =20 - /* Ensure DRQ is set correctly for TC underflow or normal completion */ - esp_dma_ti_check(s); - if (s->current_req) { scsi_req_unref(s->current_req); s->current_req =3D NULL; --=20 2.39.2