From nobody Sat Sep 21 07:54:20 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 1705064613252785.8804970446944; Fri, 12 Jan 2024 05:03:33 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rOHAG-0003Cs-G5; Fri, 12 Jan 2024 08:01:37 -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 1rOH9g-0002mQ-IN for qemu-devel@nongnu.org; Fri, 12 Jan 2024 08:01:04 -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 1rOH9d-0001Wh-Bk for qemu-devel@nongnu.org; Fri, 12 Jan 2024 08:00:59 -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 1rOH6F-0008jM-VZ; Fri, 12 Jan 2024 12:57:32 +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=AH7kvaRfyBpaN6wRUabwxD93irCPDXxz0fMJ6vNsumo=; b=NvsXR8YCVnHXKXoZ+XFtkygWEc tH7vk+ZLgwvBeIjrUNlogL0hsnrHN40n2Xocx+xdBMNAmacNf2y+WCZe6J5uiGROMPpEMP4ieS1+y 3jJP5zIW2aK4SOGFmEWi8DBamcxrZNjg8ri0Fus7LZBwru40WCjiTwt/w127fZ5Wn23RJyFpGNC/6 mdw5LN4SoCfyxFLtsWNDalLNxOyAsmt0isSraRNeq6PFkARtnoCKe7BP3eM/iMqDh0sDoKb2Q6ugg 5Pj9ipn0O9AqL+bi9EMYDWSyQHBk6/GFqEvsROw5Cb+LnVVVfMmhJO5EkHDFgNZnSQpjJlKkS79K3 zYkvWwXHzR9BkkT3imPWX8nX29R3PI5rGVOzjbSOm6gwnCs1R6gz7TzI9C15XC6TjeMQzaWbRToii EQxOQOqLmURWTshSV5Ph7POGEtXQx0NBPrmnAKbpkpE4D6kWxAvvt6NLWjxBc6+ZLE86VZ0V8fNfr xz60NiwiBnqQYL29gIXu0EiuQ0VGkFLqJYKZe7I/PvY6jFn88IFiK/+hwfQY8hkODVXtOkMNEqEZ1 9AhFbt7DR2oyM4mgiRbNedhc+YTZk3YWVuxwuZw6vPalHDEs7PCF+fGNcndh947W9pmGFUehPilSR eRRy3lhAS6P0tIaURjw/47rXRXd3YoguVkGcY8xBI=; 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 12:53:56 +0000 Message-Id: <20240112125420.514425-65-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 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: 1705064615085100005 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 --- 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