From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA2CD375256 for ; Sat, 28 Feb 2026 18:16:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772302560; cv=none; b=QY3lYJR/A64WyO3YmnZE7u3Xc8hPZ/HLi5NCg9PmLPWVvx/KQadoaLW6E9/KG+lbDqBdDUHCL1s8Z42a5vEheNUu2XQcHdcB3pgicKOUbSmoA3/mdbQ6e0fykx44KKJxwJMoorZQsfTkNflajNWqP8B7J/RHi/1XqUKPWn9KzzQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772302560; c=relaxed/simple; bh=niydhbNNsZxrKwhLW5+0bPm9qzHi3e1VQVvEZqUHNIs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=mcvRNiUdN5VJbdvGqahOpjJI6GTFx5D0Maorw3tAh4Kj7DROukaNNVilwTpvXSvIS4iersw64erjUfdlE/e9Lt3F9PtVhNNPOmHyEO2/HCW5aPeD4+/DwQAUrJ/03rXQT6dGe5ymQXCEdcj1U3n7BA5LIbs62Z03BUc8FywzZ4M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=o6PEz2S5; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="o6PEz2S5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4DA29C19425; Sat, 28 Feb 2026 18:16:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772302560; bh=niydhbNNsZxrKwhLW5+0bPm9qzHi3e1VQVvEZqUHNIs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=o6PEz2S5aky0zGRgyEWqSTbo4txSSNVgkgBYGLN2OgRSs/r1ezd5iaq3XoXHZbGOx uSC6FhWyHJA9fprCMTHBkbYkL+mjzzXX2ov9jHRJ1PhpSuVQ73aVBq9/RCdfhX+tHL f60pW1V1qhEk/+QuXhoak+mxXW+S84Sk0ajve+WH3Q+7aiTEAIEd61T1HLSgNJ3qB0 dV1eqF9X1YSU1nnPwiiH0vtXQY5mIJ5ygEVOrA/pc1uPICTKPn6CQYK+jcIlKyDsM2 cV2hLEvlvAx4XnMuqXq5lHgmFt84Dr1HrddXSZFqgRUi1wPbCWZddxkIXURw2IPDtb bnlDV+OVCa5AQ== From: Sasha Levin To: patches@lists.linux.dev Cc: =?UTF-8?q?J=C3=B6rg=20Wedekind?= , Bjorn Helgaas , Sasha Levin Subject: [PATCH 5.15 066/164] PCI: Mark 3ware-9650SA Root Port Extended Tags as broken Date: Sat, 28 Feb 2026 13:13:25 -0500 Message-ID: <20260228181505.1600663-66-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228181505.1600663-1-sashal@kernel.org> References: <20260228181505.1600663-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Jörg Wedekind [ Upstream commit 959ac08a2c2811305be8c2779779e8b0932e5a99 ] Per PCIe r7.0, sec 2.2.6.2.1 and 7.5.3.4, a Requester may not use 8-bit Tags unless its Extended Tag Field Enable is set, but all Receivers/Completers must handle 8-bit Tags correctly regardless of their Extended Tag Field Enable. Some devices do not handle 8-bit Tags as Completers, so add a quirk for them. If we find such a device, we disable Extended Tags for the entire hierarchy to make peer-to-peer DMA possible. The 3ware 9650SA seems to have issues with handling 8-bit tags. Mark it as broken. This fixes PCI Parity Errors like : 3w-9xxx: scsi0: ERROR: (0x06:0x000C): PCI Parity Error: clearing. 3w-9xxx: scsi0: ERROR: (0x06:0x000D): PCI Abort: clearing. 3w-9xxx: scsi0: ERROR: (0x06:0x000E): Controller Queue Error: clearing. 3w-9xxx: scsi0: ERROR: (0x06:0x0010): Microcontroller Error: clearing. Fixes: 60db3a4d8cc9 ("PCI: Enable PCIe Extended Tags if supported") Closes: https://bugzilla.kernel.org/show_bug.cgi?id=202425 Signed-off-by: Jörg Wedekind Signed-off-by: Bjorn Helgaas Link: https://patch.msgid.link/20260119143114.21948-1-joerg@wedekind.de Signed-off-by: Sasha Levin --- drivers/pci/quirks.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 7597aedc05c37..88922e21d440a 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5431,6 +5431,7 @@ static void quirk_no_ext_tags(struct pci_dev *pdev) pci_walk_bus(bridge->bus, pci_configure_extended_tags, NULL); } DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_3WARE, 0x1004, quirk_no_ext_tags); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_3WARE, 0x1005, quirk_no_ext_tags); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0132, quirk_no_ext_tags); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0140, quirk_no_ext_tags); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0141, quirk_no_ext_tags); -- 2.51.0