Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/2217742/?format=api
{ "id": 2217742, "url": "http://patchwork.ozlabs.org/api/patches/2217742/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260330-fix_pciatops-v7-1-f601818417e8@linux.ibm.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260330-fix_pciatops-v7-1-f601818417e8@linux.ibm.com>", "list_archive_url": null, "date": "2026-03-30T13:09:44", "name": "[v7,1/3] PCI: AtomicOps: Do not enable requests by RCiEPs", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "a7bc601edf6d2cd3052012687300e1ea1fce299c", "submitter": { "id": 85804, "url": "http://patchwork.ozlabs.org/api/people/85804/?format=api", "name": "Gerd Bayer", "email": "gbayer@linux.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260330-fix_pciatops-v7-1-f601818417e8@linux.ibm.com/mbox/", "series": [ { "id": 498027, "url": "http://patchwork.ozlabs.org/api/series/498027/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=498027", "date": "2026-03-30T13:09:44", "name": "PCI: AtomicOps: Fix pci_enable_atomic_ops_to_root()", "version": 7, "mbox": "http://patchwork.ozlabs.org/series/498027/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2217742/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2217742/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-pci+bounces-51449-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pci@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=U9k3SEGC;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c09:e001:a7::12fc:5321; helo=sto.lore.kernel.org;\n envelope-from=linux-pci+bounces-51449-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com\n header.b=\"U9k3SEGC\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=148.163.156.1", "smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=linux.ibm.com", "smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=linux.ibm.com" ], "Received": [ "from sto.lore.kernel.org (sto.lore.kernel.org\n [IPv6:2600:3c09:e001:a7::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fks726vyZz1yG8\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 31 Mar 2026 00:10:22 +1100 (AEDT)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sto.lore.kernel.org (Postfix) with ESMTP id A584B300C0C7\n\tfor <incoming@patchwork.ozlabs.org>; Mon, 30 Mar 2026 13:10:16 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 77E263D34B6;\n\tMon, 30 Mar 2026 13:10:13 +0000 (UTC)", "from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com\n [148.163.156.1])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 260B53D333F;\n\tMon, 30 Mar 2026 13:10:11 +0000 (UTC)", "from pps.filterd (m0353729.ppops.net [127.0.0.1])\n\tby mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id\n 62U0jCiT462561;\n\tMon, 30 Mar 2026 13:10:07 GMT", "from ppma11.dal12v.mail.ibm.com\n (db.9e.1632.ip4.static.sl-reverse.com [50.22.158.219])\n\tby mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4d66nnevwa-1\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT);\n\tMon, 30 Mar 2026 13:10:07 +0000 (GMT)", "from pps.filterd (ppma11.dal12v.mail.ibm.com [127.0.0.1])\n\tby ppma11.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id\n 62UBFMQD008703;\n\tMon, 30 Mar 2026 13:10:06 GMT", "from smtprelay05.fra02v.mail.ibm.com ([9.218.2.225])\n\tby ppma11.dal12v.mail.ibm.com (PPS) with ESMTPS id 4d6v11cqy9-1\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT);\n\tMon, 30 Mar 2026 13:10:06 +0000", "from smtpav05.fra02v.mail.ibm.com (smtpav05.fra02v.mail.ibm.com\n [10.20.54.104])\n\tby smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id\n 62UDA2SD42664208\n\t(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK);\n\tMon, 30 Mar 2026 13:10:02 GMT", "from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id A628F2004B;\n\tMon, 30 Mar 2026 13:10:02 +0000 (GMT)", "from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 68C032004D;\n\tMon, 30 Mar 2026 13:10:02 +0000 (GMT)", "from tuxmaker.boeblingen.de.ibm.com (unknown [9.87.85.9])\n\tby smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTP;\n\tMon, 30 Mar 2026 13:10:02 +0000 (GMT)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1774876213; cv=none;\n b=qHvOQX44tohTxTViaCE8CBsTSUihVi7ME/Lm7gJvfpLq4/x6fBmE1G/moOPSPtKoGS22QD7xRNWFlgdNy7GYMowKifanoUPALTdpq8g3PAYiP3bLEzYpzhaYz1Jyd/U7BPdPptqxVLRVuiz2/BtLeEW4TiurxY+YpERObmwazNM=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1774876213; c=relaxed/simple;\n\tbh=+z0ds1dEkDsjD2TbiG1J1ECIKxoY5I0HhGpLfURiclQ=;\n\th=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References:\n\t In-Reply-To:To:Cc;\n b=U6N64RkF3eC7iGirr7L40XZRjhR4B1W4Yrt1+7ZshddW2cNEnRwrPsa4uHAgRhdFSB8eajiOwTy0SrVFX8VnXeWS9BcFnN0JYi7RxW8SdEhTrdfz42zZhNGI1RPKRqfEXE4+stsC/NX+JcmfSroZPeMB2L2qsO0oN4gJkWY3l8I=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=linux.ibm.com;\n spf=pass smtp.mailfrom=linux.ibm.com;\n dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com\n header.b=U9k3SEGC; arc=none smtp.client-ip=148.163.156.1", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc\n\t:content-transfer-encoding:content-type:date:from:in-reply-to\n\t:message-id:mime-version:references:subject:to; s=pp1; bh=CHeSzO\n\t4goq394woaZUo2vkt/fxPpeKAgtzg8EVdB714=; b=U9k3SEGCyHG5yQb7QvISk3\n\t5GHtl1iCyzCoWlnunTc0+O9IB9zfY+PrUCUuvC+rtmaC+AEb/wx0QJAmb8NlJ6fw\n\tIhrClLOTT2+XshHlnwQMxa5008uTuSaAEjCTXu5BYyzAtZDdr2p+hhGLfvQtEPyh\n\tUWGxtgCOP9ybe//Zh/OKQ/oWhDXuSow3uh6lQ3sRaoHMsJi6Gnek5mGyokLTXR31\n\t6iMhyF6qMD2/G66tQdHPPIVXRL3SjpAfzXvXLq8RrUctGGc+26YUl1d6jfCLgw36\n\t2HarZWGsMUx/jfAFcaBvW6gaxixjiyecwK/4APOQmJSfmxyNE5TNoyAfnvfPszsA\n\t==", "From": "Gerd Bayer <gbayer@linux.ibm.com>", "Date": "Mon, 30 Mar 2026 15:09:44 +0200", "Subject": "[PATCH v7 1/3] PCI: AtomicOps: Do not enable requests by RCiEPs", "Precedence": "bulk", "X-Mailing-List": "linux-pci@vger.kernel.org", "List-Id": "<linux-pci.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pci+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pci+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260330-fix_pciatops-v7-1-f601818417e8@linux.ibm.com>", "References": "<20260330-fix_pciatops-v7-0-f601818417e8@linux.ibm.com>", "In-Reply-To": "<20260330-fix_pciatops-v7-0-f601818417e8@linux.ibm.com>", "To": "Bjorn Helgaas <bhelgaas@google.com>, Jay Cornwall <Jay.Cornwall@amd.com>,\n Felix Kuehling <Felix.Kuehling@amd.com>,\n =?utf-8?q?Ilpo_J=C3=A4rvinen?= <ilpo.jarvinen@linux.intel.com>,\n Christian Borntraeger <borntraeger@linux.ibm.com>,\n Niklas Schnelle <schnelle@linux.ibm.com>", "Cc": "Gerald Schaefer <gerald.schaefer@linux.ibm.com>,\n Heiko Carstens <hca@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>,\n Alexander Gordeev <agordeev@linux.ibm.com>,\n Sven Schnelle <svens@linux.ibm.com>,\n Leon Romanovsky <leon@kernel.org>,\n Alexander Schmidt <alexs@linux.ibm.com>, linux-s390@vger.kernel.org,\n linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,\n netdev@vger.kernel.org, linux-rdma@vger.kernel.org,\n Gerd Bayer <gbayer@linux.ibm.com>", "X-Mailer": "b4 0.14.2", "X-TM-AS-GCONF": "00", "X-Proofpoint-Reinject": "loops=2 maxloops=12", "X-Proofpoint-GUID": "nR_7MWUNmRcBNJwufyVy4G_yWkey58SG", "X-Authority-Analysis": "v=2.4 cv=KslAGGWN c=1 sm=1 tr=0 ts=69ca762f cx=c_pps\n a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17\n a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22\n a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8\n a=l8ywxVsZnL7a6Sv94yEA:9 a=QEXdDO2ut3YA:10", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwMzMwMDEwMCBTYWx0ZWRfX2sq8oqfMVQA+\n YeBcz7oajtbLWPeE9dkM/BaFYthp6zT+ff9iEmmOX9AsLPLOf8TXoicBR8gPeDxDDsk5qyG5Frb\n VYL2l3eO0/k9pnW7LICm0O+TqhI9UXcWctZuOshqgoqipqfECUH8e830QOZRSBiZvo2UMm25Jhs\n YOc7AKGL0BPBIC8D2N7dkf7yqxl3iWX37t3KPrUu/u6G32QWM4bxrVimZ2AT17/IKoCR9LAvQoR\n ezfqlbZgXCLCew2how5IZUefljiZaXfdiiuMmrzrCqoE6oqsNvPIv2meOCOv1OsUV74F0zI4yKx\n cKOHkNypn0M+al4GxQEGlUVFA1t4D5Da7KUf4zjrIvG5VoAfUI1s11heAaFizpajFSSQB5cAB5i\n G+rb4kv2yrDtwr6ZXOn00uV/UnggzT6TAvEI3b3x1PKGsjfyrTYeZkv+nWXcUpYz/Y0VBFvBHqd\n Fm9OovqYqPLfnXxpTpw==", "X-Proofpoint-ORIG-GUID": "P-slp7YBInZbi8orMA2p2Lc-oqwdirtq", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-03-29_05,2026-03-28_01,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n malwarescore=0 lowpriorityscore=0 priorityscore=1501 suspectscore=0\n phishscore=0 adultscore=0 bulkscore=0 impostorscore=0 clxscore=1015\n spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound\n adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001\n definitions=main-2603300100" }, "content": "Since root complex integrated end points (RCiEPs) attach to a bus that\nhas no bridge device describing the root port, the capability to\ncomplete AtomicOps requests cannot be determined with PCIe methods.\n\nChange default of pci_enable_atomic_ops_to_root() to not enable\nAtomicOps requests on RCiEPs.\n\nSigned-off-by: Gerd Bayer <gbayer@linux.ibm.com>\n---\n drivers/pci/pci.c | 5 ++---\n 1 file changed, 2 insertions(+), 3 deletions(-)", "diff": "diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c\nindex 8479c2e1f74f1044416281aba11bf071ea89488a..135e5b591df405e87e7f520a618d7e2ccba55ce1 100644\n--- a/drivers/pci/pci.c\n+++ b/drivers/pci/pci.c\n@@ -3692,15 +3692,14 @@ int pci_enable_atomic_ops_to_root(struct pci_dev *dev, u32 cap_mask)\n \n \t/*\n \t * Per PCIe r4.0, sec 6.15, endpoints and root ports may be\n-\t * AtomicOp requesters. For now, we only support endpoints as\n-\t * requesters and root ports as completers. No endpoints as\n+\t * AtomicOp requesters. For now, we only support (legacy) endpoints\n+\t * as requesters and root ports as completers. No endpoints as\n \t * completers, and no peer-to-peer.\n \t */\n \n \tswitch (pci_pcie_type(dev)) {\n \tcase PCI_EXP_TYPE_ENDPOINT:\n \tcase PCI_EXP_TYPE_LEG_END:\n-\tcase PCI_EXP_TYPE_RC_END:\n \t\tbreak;\n \tdefault:\n \t\treturn -EINVAL;\n", "prefixes": [ "v7", "1/3" ] }