2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2012 Hudson River Trading LLC
5 * Written by: John H. Baldwin <jhb@FreeBSD.org>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 static const char rcsid[] =
35 #include <sys/param.h>
36 #include <sys/pciio.h>
41 #include <dev/pci/pcireg.h>
50 /* Error indicators in the PCI status register (PCIR_STATUS). */
51 static struct bit_table pci_status[] = {
52 { PCIM_STATUS_MDPERR, "Master Data Parity Error" },
53 { PCIM_STATUS_STABORT, "Sent Target-Abort" },
54 { PCIM_STATUS_RTABORT, "Received Target-Abort" },
55 { PCIM_STATUS_RMABORT, "Received Master-Abort" },
56 { PCIM_STATUS_SERR, "Signalled System Error" },
57 { PCIM_STATUS_PERR, "Detected Parity Error" },
61 /* Valid error indicator bits in PCIR_STATUS. */
62 #define PCI_ERRORS (PCIM_STATUS_MDPERR | PCIM_STATUS_STABORT | \
63 PCIM_STATUS_RTABORT | PCIM_STATUS_RMABORT | \
64 PCIM_STATUS_SERR | PCIM_STATUS_PERR)
66 /* Error indicators in the PCI-Express device status register. */
67 static struct bit_table pcie_device_status[] = {
68 { PCIEM_STA_CORRECTABLE_ERROR, "Correctable Error Detected" },
69 { PCIEM_STA_NON_FATAL_ERROR, "Non-Fatal Error Detected" },
70 { PCIEM_STA_FATAL_ERROR, "Fatal Error Detected" },
71 { PCIEM_STA_UNSUPPORTED_REQ, "Unsupported Request Detected" },
75 /* Valid error indicator bits in the PCI-Express device status register. */
76 #define PCIE_ERRORS (PCIEM_STA_CORRECTABLE_ERROR | \
77 PCIEM_STA_NON_FATAL_ERROR | \
78 PCIEM_STA_FATAL_ERROR | \
79 PCIEM_STA_UNSUPPORTED_REQ)
81 /* AER Uncorrected errors. */
82 static struct bit_table aer_uc[] = {
83 { PCIM_AER_UC_TRAINING_ERROR, "Link Training Error" },
84 { PCIM_AER_UC_DL_PROTOCOL_ERROR, "Data Link Protocol Error" },
85 { PCIM_AER_UC_SURPRISE_LINK_DOWN, "Surprise Link Down Error" },
86 { PCIM_AER_UC_POISONED_TLP, "Poisoned TLP" },
87 { PCIM_AER_UC_FC_PROTOCOL_ERROR, "Flow Control Protocol Error" },
88 { PCIM_AER_UC_COMPLETION_TIMEOUT, "Completion Timeout" },
89 { PCIM_AER_UC_COMPLETER_ABORT, "Completer Abort" },
90 { PCIM_AER_UC_UNEXPECTED_COMPLETION, "Unexpected Completion" },
91 { PCIM_AER_UC_RECEIVER_OVERFLOW, "Receiver Overflow Error" },
92 { PCIM_AER_UC_MALFORMED_TLP, "Malformed TLP" },
93 { PCIM_AER_UC_ECRC_ERROR, "ECRC Error" },
94 { PCIM_AER_UC_UNSUPPORTED_REQUEST, "Unsupported Request" },
95 { PCIM_AER_UC_ACS_VIOLATION, "ACS Violation" },
96 { PCIM_AER_UC_INTERNAL_ERROR, "Uncorrectable Internal Error" },
97 { PCIM_AER_UC_MC_BLOCKED_TLP, "MC Blocked TLP" },
98 { PCIM_AER_UC_ATOMIC_EGRESS_BLK, "AtomicOp Egress Blocked" },
99 { PCIM_AER_UC_TLP_PREFIX_BLOCKED, "TLP Prefix Blocked Error" },
103 /* AER Corrected errors. */
104 static struct bit_table aer_cor[] = {
105 { PCIM_AER_COR_RECEIVER_ERROR, "Receiver Error" },
106 { PCIM_AER_COR_BAD_TLP, "Bad TLP" },
107 { PCIM_AER_COR_BAD_DLLP, "Bad DLLP" },
108 { PCIM_AER_COR_REPLAY_ROLLOVER, "REPLAY_NUM Rollover" },
109 { PCIM_AER_COR_REPLAY_TIMEOUT, "Replay Timer Timeout" },
110 { PCIM_AER_COR_ADVISORY_NF_ERROR, "Advisory Non-Fatal Error" },
111 { PCIM_AER_COR_INTERNAL_ERROR, "Corrected Internal Error" },
112 { PCIM_AER_COR_HEADER_LOG_OVFLOW, "Header Log Overflow" },
117 print_bits(const char *header, struct bit_table *table, uint32_t mask)
122 for (; table->desc != NULL; table++)
123 if (mask & table->mask) {
125 printf("%14s = ", header);
129 printf("%s\n", table->desc);
130 mask &= ~table->mask;
134 printf("%14s = ", header);
137 printf("Unknown: 0x%08x\n", mask);
142 list_errors(int fd, struct pci_conf *p)
144 uint32_t mask, severity;
148 /* First check for standard PCI errors. */
149 sta = read_config(fd, &p->pc_sel, PCIR_STATUS, 2);
150 print_bits("PCI errors", pci_status, sta & PCI_ERRORS);
152 /* See if this is a PCI-express device. */
153 pcie = pci_find_cap(fd, p, PCIY_EXPRESS);
157 /* Check for PCI-e errors. */
158 sta = read_config(fd, &p->pc_sel, pcie + PCIER_DEVICE_STA, 2);
159 print_bits("PCI-e errors", pcie_device_status, sta & PCIE_ERRORS);
161 /* See if this device supports AER. */
162 aer = pcie_find_cap(fd, p, PCIZ_AER);
166 /* Check for uncorrected errors. */
167 mask = read_config(fd, &p->pc_sel, aer + PCIR_AER_UC_STATUS, 4);
168 severity = read_config(fd, &p->pc_sel, aer + PCIR_AER_UC_SEVERITY, 4);
169 print_bits("Fatal", aer_uc, mask & severity);
170 print_bits("Non-fatal", aer_uc, mask & ~severity);
172 /* Check for corrected errors. */
173 mask = read_config(fd, &p->pc_sel, aer + PCIR_AER_COR_STATUS, 4);
174 print_bits("Corrected", aer_cor, mask);