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16 Apr 2024 23:16:53 -0700 From: Zhenzhong Duan To: linux-pci@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-acpi@vger.kernel.org Cc: rafael@kernel.org, lenb@kernel.org, james.morse@arm.com, tony.luck@intel.com, bp@alien8.de, dave@stgolabs.net, jonathan.cameron@huawei.com, dave.jiang@intel.com, alison.schofield@intel.com, vishal.l.verma@intel.com, ira.weiny@intel.com, bhelgaas@google.com, helgaas@kernel.org, mahesh@linux.ibm.com, oohall@gmail.com, linmiaohe@huawei.com, shiju.jose@huawei.com, adam.c.preble@intel.com, leoyang.li@nxp.com, lukas@wunner.de, Smita.KoralahalliChannabasappa@amd.com, rrichter@amd.com, linux-cxl@vger.kernel.org, linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org, erwin.tsaur@intel.com, sathyanarayanan.kuppuswamy@intel.com, dan.j.williams@intel.com, feiting.wanyan@intel.com, yudong.wang@intel.com, chao.p.peng@intel.com, qingshun.wang@linux.intel.com, Zhenzhong Duan Subject: [PATCH v3 2/3] PCI/AER: Print UNCOR_STATUS bits that might be ANFE Date: Wed, 17 Apr 2024 14:14:06 +0800 Message-Id: <20240417061407.1491361-3-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240417061407.1491361-1-zhenzhong.duan@intel.com> References: <20240417061407.1491361-1-zhenzhong.duan@intel.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 When an Advisory Non-Fatal error(ANFE) triggers, both correctable error(CE) status and ANFE related uncorrectable error(UE) status will be printed: AER: Correctable error message received from 0000:b7:02.0 PCIe Bus Error: severity=Correctable, type=Transaction Layer, (Receiver ID) device [8086:0db0] error status/mask=00002000/00000000 [13] NonFatalErr Uncorrectable errors that may cause Advisory Non-Fatal: [18] TLP Tested-by: Yudong Wang Co-developed-by: "Wang, Qingshun" Signed-off-by: "Wang, Qingshun" Signed-off-by: Zhenzhong Duan --- drivers/pci/pcie/aer.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c index 27364ab4b148..870e1d1a5159 100644 --- a/drivers/pci/pcie/aer.c +++ b/drivers/pci/pcie/aer.c @@ -681,6 +681,7 @@ static void __aer_print_error(struct pci_dev *dev, { const char **strings; unsigned long status = info->status & ~info->mask; + unsigned long anfe_status = info->anfe_status; const char *level, *errmsg; int i; @@ -701,6 +702,20 @@ static void __aer_print_error(struct pci_dev *dev, info->first_error == i ? " (First)" : ""); } pci_dev_aer_stats_incr(dev, info); + + if (!anfe_status) + return; + + strings = aer_uncorrectable_error_string; + pci_printk(level, dev, "Uncorrectable errors that may cause Advisory Non-Fatal:\n"); + + for_each_set_bit(i, &anfe_status, 32) { + errmsg = strings[i]; + if (!errmsg) + errmsg = "Unknown Error Bit"; + + pci_printk(level, dev, " [%2d] %s\n", i, errmsg); + } } void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)