From nobody Sat Sep 21 07:38:18 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 1705064452549472.74663977736327; Fri, 12 Jan 2024 05:00:52 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rOH5b-00032v-Ey; Fri, 12 Jan 2024 07:56:47 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rOH5W-0002hm-IG for qemu-devel@nongnu.org; Fri, 12 Jan 2024 07:56:42 -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 1rOH5N-0007St-8R for qemu-devel@nongnu.org; Fri, 12 Jan 2024 07:56:41 -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 1rOH4Z-0008jM-71; Fri, 12 Jan 2024 12:55:47 +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=apWjp60OGDbXskhoqhQ7L2Unt4rYkRzNC6E6Qr8eL5I=; b=V+NoSuqZEl325GMRL82bXJoKU6 0+kPuGmtystglOOR/wkSroDzp6al4f3in+gJJxt1t20UL1K+LAUqxtBA5u+DdHIENhHwaiD5B7c1C vP95DKs/xxj4Wb08KkCUNI1sfzcuvKt6S/ig2Ry1ZY+CrWPdKVO1gpiVWVy2q65d8XNbkFNDC7tCG IUiYGAb93dn0/LFYmSsan7cHEgtepdAXnWHMg1OFOM2f1ModOVTa+yc7Ij/gEHRMfzi4wyayrNzdJ 3ZglXFcQA9hPzzAhyLg4u75A9/lH8PLSBZ9JpMplZnz0so1SE1t+7PK/LWtz4R5NPQScu/4HMiH/y xFIE71sUWeVaZWbHgryIS2mspSik0XUU3FdkcE3PiuH7egefAUdeS9hEodhD9lUTOniNyYZ0sha0D VLCfTvUZJIRhnOV5n4NX82EOsYrgdDjTMRMDbpN8INaraJDq/0PoX8hsH7laJ2bGaHJP0sm/L9vta Kj9WncVvyhyPebymzr6C9oLnlhpUs28ngfgGS69VWrGPtjlAeCY89G5A6hYyOxGXXPz1Hy1heRe7H rhXzsDtgibe/xXpTWTgdakUv6G7zMRI9gOXqNPVvyaMfTwkG47kDcMCQRHNgDyOh2voJ8BIGAw49T 0DZzM1w7fo3Qag0U+FEVwMpgT2R3YZK9a+Wc35f5o=; 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 12:53:21 +0000 Message-Id: <20240112125420.514425-30-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 29/88] esp.c: fix premature end of phase logic esp_command_complete X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1705064454264100003 Content-Type: text/plain; charset="utf-8" There are two cases here: the first is when the TI command underflows, in w= hich case we raise INTR_BS to indicate an early change of phase, and the second = is when the TI command overflows because the host requested a transfer for more data than is available. In the latter case force TC to zero so that the TI completion logic executes correctly. Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index f20026c3dc..c6151d306e 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -887,7 +887,6 @@ void esp_command_complete(SCSIRequest *req, size_t resi= d) if (s->ti_size !=3D 0) { trace_esp_command_complete_unexpected(); } - s->ti_size =3D 0; } =20 s->async_len =3D 0; @@ -897,13 +896,26 @@ void esp_command_complete(SCSIRequest *req, size_t re= sid) s->status =3D req->status; =20 /* - * If the transfer is finished, switch to status phase. For non-DMA - * transfers from the target the last byte is still in the FIFO + * Switch to status phase. For non-DMA transfers from the target the l= ast + * byte is still in the FIFO */ + esp_set_phase(s, STAT_ST); if (s->ti_size =3D=3D 0) { - esp_set_phase(s, STAT_ST); + /* + * Transfer complete: force TC to zero just in case a TI command w= as + * requested for more data than the command returns (Solaris 8 does + * this) + */ + esp_set_tc(s, 0); esp_dma_done(s); - esp_lower_drq(s); + } else { + /* + * Transfer truncated: raise INTR_BS to indicate early change of + * phase + */ + s->rregs[ESP_RINTR] |=3D INTR_BS; + esp_raise_irq(s); + s->ti_size =3D 0; } =20 if (s->current_req) { --=20 2.39.2