/* * drivers/pci/pcie/aer/aerdrv_errprint.c * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Format error messages and print them to console. * * Copyright (C) 2006 Intel Corp. * Tom Long Nguyen (tom.l.nguyen@intel.com) * Zhang Yanmin (yanmin.zhang@intel.com) * */ #include #include #include #include #include #include #include "aerdrv.h" #define AER_AGENT_RECEIVER 0 #define AER_AGENT_REQUESTER 1 #define AER_AGENT_COMPLETER 2 #define AER_AGENT_TRANSMITTER 3 #define AER_AGENT_REQUESTER_MASK(t) ((t == AER_CORRECTABLE) ? \ 0 : (PCI_ERR_UNC_COMP_TIME|PCI_ERR_UNC_UNSUP)) #define AER_AGENT_COMPLETER_MASK(t) ((t == AER_CORRECTABLE) ? \ 0 : PCI_ERR_UNC_COMP_ABORT) #define AER_AGENT_TRANSMITTER_MASK(t) ((t == AER_CORRECTABLE) ? \ (PCI_ERR_COR_REP_ROLL|PCI_ERR_COR_REP_TIMER) : 0) #define AER_GET_AGENT(t, e) \ ((e & AER_AGENT_COMPLETER_MASK(t)) ? AER_AGENT_COMPLETER : \ (e & AER_AGENT_REQUESTER_MASK(t)) ? AER_AGENT_REQUESTER : \ (e & AER_AGENT_TRANSMITTER_MASK(t)) ? AER_AGENT_TRANSMITTER : \ AER_AGENT_RECEIVER) #define AER_PHYSICAL_LAYER_ERROR 0 #define AER_DATA_LINK_LAYER_ERROR 1 #define AER_TRANSACTION_LAYER_ERROR 2 #define AER_PHYSICAL_LAYER_ERROR_MASK(t) ((t == AER_CORRECTABLE) ? \ PCI_ERR_COR_RCVR : 0) #define AER_DATA_LINK_LAYER_ERROR_MASK(t) ((t == AER_CORRECTABLE) ? \ (PCI_ERR_COR_BAD_TLP| \ PCI_ERR_COR_BAD_DLLP| \ PCI_ERR_COR_REP_ROLL| \ PCI_ERR_COR_REP_TIMER) : PCI_ERR_UNC_DLP) #define AER_GET_LAYER_ERROR(t, e) \ ((e & AER_PHYSICAL_LAYER_ERROR_MASK(t)) ? AER_PHYSICAL_LAYER_ERROR : \ (e & AER_DATA_LINK_LAYER_ERROR_MASK(t)) ? AER_DATA_LINK_LAYER_ERROR : \ AER_TRANSACTION_LAYER_ERROR) #define AER_PR(info, pdev, fmt, args...) \ printk("%s%s %s: " fmt, (info->severity == AER_CORRECTABLE) ? \ KERN_WARNING : KERN_ERR, dev_driver_string(&pdev->dev), \ dev_name(&pdev->dev), ## args) /* * AER error strings */ static char *aer_error_severity_string[] = { "Uncorrected (Non-Fatal)", "Uncorrected (Fatal)", "Corrected" }; static char *aer_error_layer[] = { "Physical Layer", "Data Link Layer", "Transaction Layer" }; static char *aer_correctable_error_string[] = { "Receiver Error ", /* Bit Position 0 */ NULL, NULL, NULL, NULL, NULL, "Bad TLP ", /* Bit Position 6 */ "Bad DLLP ", /* Bit Position 7 */ "RELAY_NUM Rollover ", /* Bit Position 8 */ NULL, NULL, NULL, "Replay Timer Timeout ", /* Bit Position 12 */ "Advisory Non-Fatal ", /* Bit Position 13 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, }; static char *aer_uncorrectable_error_string[] = { NULL, NULL, NULL, NULL, "Data Link Protocol ", /* Bit Position 4 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, "Poisoned TLP ", /* Bit Position 12 */ "Flow Control Protocol ", /* Bit Position 13 */ "Completion Timeout ", /* Bit Position 14 */ "Completer Abort ", /* Bit Position 15 */ "Unexpected Completion ", /* Bit Position 16 */ "Receiver Overflow ", /* Bit Position 17 */ "Malformed TLP ", /* Bit Position 18 */ "ECRC ", /* Bit Position 19 */ "Unsupported Request ", /* Bit Position 20 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, }; static char *aer_agent_string[] = { "Receiver ID", "Requester ID", "Completer ID", "Transmitter ID" }; static void __aer_print_error(struct aer_err_info *info, struct pci_dev *dev) { int i, status; char *errmsg = NULL; status = (info->status & ~info->mask); for (i = 0; i < 32; i++) { if (!(status & (1 << i))) continue; if (info->severity == AER_CORRECTABLE) errmsg = aer_correctable_error_string[i]; else errmsg = aer_uncorrectable_error_string[i]; if (errmsg) AER_PR(info, dev, " [%2d] %s%s\n", i, errmsg, info->first_error == i ? " (First)" : ""); else AER_PR(info, dev, " [%2d] Unknown Error Bit%s\n", i, info->first_error == i ? " (First)" : ""); } } void aer_print_error(struct pci_dev *dev, struct aer_err_info *info) { int id = ((dev->bus->number << 8) | dev->devfn); if (info->status == 0) { AER_PR(info, dev, "PCIe Bus Error: severity=%s, type=Unaccessible, " "id=%04x(Unregistered Agent ID)\n", aer_error_severity_string[info->severity], id); } else { int layer, agent; layer = AER_GET_LAYER_ERROR(info->severity, info->status); agent = AER_GET_AGENT(info->severity, info->status); AER_PR(info, dev, "PCIe Bus Error: severity=%s, type=%s, id=%04x(%s)\n", aer_error_severity_string[info->severity], aer_error_layer[layer], id, aer_agent_string[agent]); AER_PR(info, dev, " device [%04x:%04x] error status/mask=%08x/%08x\n", dev->vendor, dev->device, info->status, info->mask); __aer_print_error(info, dev); if (info->tlp_header_valid) { unsigned char *tlp = (unsigned char *) &info->tlp; AER_PR(info, dev, " TLP Header:" " %02x%02x%02x%02x %02x%02x%02x%02x" " %02x%02x%02x%02x %02x%02x%02x%02x\n", *(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp, *(tlp + 7), *(tlp + 6), *(tlp + 5), *(tlp + 4), *(tlp + 11), *(tlp + 10), *(tlp + 9), *(tlp + 8), *(tlp + 15), *(tlp + 14), *(tlp + 13), *(tlp + 12)); } } if (info->id && info->error_dev_num > 1 && info->id == id) AER_PR(info, dev, " Error of this Agent(%04x) is reported first\n", id); } void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info) { dev_info(&dev->dev, "AER: %s%s error received: id=%04x\n", info->multi_error_valid ? "Multiple " : "", aer_error_severity_string[info->severity], info->id); }