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Thu, 22 Jan 2026 13:10:06 +0000 (GMT) Received: from pps.filterd (phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 60MBDrrV018159; Thu, 22 Jan 2026 13:10:05 GMT Received: from lab61.no.oracle.com (lab61.no.oracle.com [10.172.144.82]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 4br0vctgdy-1; Thu, 22 Jan 2026 13:10:05 +0000 From: =?UTF-8?q?H=C3=A5kon=20Bugge?= To: Bjorn Helgaas , Niklas Schnelle Cc: Alex Williamson , Johannes Thumshirn , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH v3 0/2] PCI: Init RCB from pci_configure_device and fix program_hpx_type2 Date: Thu, 22 Jan 2026 14:09:52 +0100 Message-ID: <20260122130957.68757-1-haakon.bugge@oracle.com> X-Mailer: git-send-email 2.43.5 Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.20,FMLib:17.12.100.49 definitions=2026-01-22_01,2026-01-22_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 mlxscore=0 adultscore=0 phishscore=0 suspectscore=0 spamscore=0 mlxlogscore=765 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2601150000 definitions=main-2601220098 X-Proofpoint-ORIG-GUID: edicuYCRVOpVBgjT1_qhgRy4KOQu4wvv X-Authority-Analysis: v=2.4 cv=IsYTsb/g c=1 sm=1 tr=0 ts=697221ae cx=c_pps a=XiAAW1AwiKB2Y8Wsi+sD2Q==:117 a=XiAAW1AwiKB2Y8Wsi+sD2Q==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=M51BFTxLslgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=3OD1d0GEu3Xej3sCmiwA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTIyMDA5NiBTYWx0ZWRfX3Cnpvo5owgsc jeq/1REKfpDODd7MIXW48/7+VK9huUCCYZx/mviaY+MD6ZD8i22dN7xuDj4n6WUbEcZUc3ns0q8 jzN2f00fTpPJuBkf2PJanC7MOMhGECSwnGnmoax+QezZMbc2SRtt350ld+KzLBWcpav0MrHnACm AlRJhNSbgu7k4H/bsBED8BU00ooyypWUuPGcdjAzb8jnZmP2FKnolmnhNyJIKJlbK1VL2uKoVuT DSizumOamdBoTx/WxwQkb+ZeLt6uRVak9i4elql1K6I9jHCzrmrh40EuQrsCY+327rsQuOv/dI+ hsq6AMryHRvQb0ePYf20Y9zrsHwPiMyt7V7nbjM1O0f37S22kA/UtPpbvb4F8Vh9nOvLCNUbtlr MBuZptx8VW+wdRh1LBK1/WWg3Fm6xjIu+O72TXybpz4IS9M1wG3QeOi+O0pRDp/YZPwYFdIqCc0 2z3hKUuCRkT8/1Hdj+A== X-Proofpoint-GUID: edicuYCRVOpVBgjT1_qhgRy4KOQu4wvv This series add the initialization of the Link Control register's RCB to pci_configure_rcb() called from pci_configure_device() and also cleans up the incorrect program_hpx_type2(): 1. It should only be called when we own the PCIe native hotplug and not the AER ownership 2. It should only manipulate the AER-bits In addition, the second commit adds a warning if the _HPX type2 record attempts to modify the Link Control register. The programming of the device's RCB is constrained to the device types where it is applicable and also skips VFs. If the Root Port's RCB cannot be determined, we also skip the programming of the device's RCB. Then, we program the device's RCB according to the Root Port's setting. Håkon Bugge (2): PCI: Initialize RCB from pci_configure_device PCI/ACPI: Confine program_hpx_type2 to the AER bits drivers/pci/pci-acpi.c | 61 +++++++++++++++++++----------------------- drivers/pci/pci.h | 3 +++ drivers/pci/pcie/aer.c | 3 --- drivers/pci/probe.c | 53 ++++++++++++++++++++++++++++++++++++ 4 files changed, 83 insertions(+), 37 deletions(-) -- 2.43.5