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Diffstat (limited to 'usr.sbin/pciconf/err.c')
| -rw-r--r-- | usr.sbin/pciconf/err.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/usr.sbin/pciconf/err.c b/usr.sbin/pciconf/err.c new file mode 100644 index 000000000000..dca0ca1cea87 --- /dev/null +++ b/usr.sbin/pciconf/err.c @@ -0,0 +1,170 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2012 Hudson River Trading LLC + * Written by: John H. Baldwin <jhb@FreeBSD.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/param.h> +#include <sys/pciio.h> + +#include <err.h> +#include <stdio.h> + +#include <dev/pci/pcireg.h> + +#include "pciconf.h" + +struct bit_table { + uint32_t mask; + const char *desc; +}; + +/* Error indicators in the PCI status register (PCIR_STATUS). */ +static struct bit_table pci_status[] = { + { PCIM_STATUS_MDPERR, "Master Data Parity Error" }, + { PCIM_STATUS_STABORT, "Sent Target-Abort" }, + { PCIM_STATUS_RTABORT, "Received Target-Abort" }, + { PCIM_STATUS_RMABORT, "Received Master-Abort" }, + { PCIM_STATUS_SERR, "Signalled System Error" }, + { PCIM_STATUS_PERR, "Detected Parity Error" }, + { 0, NULL }, +}; + +/* Valid error indicator bits in PCIR_STATUS. */ +#define PCI_ERRORS (PCIM_STATUS_MDPERR | PCIM_STATUS_STABORT | \ + PCIM_STATUS_RTABORT | PCIM_STATUS_RMABORT | \ + PCIM_STATUS_SERR | PCIM_STATUS_PERR) + +/* Error indicators in the PCI-Express device status register. */ +static struct bit_table pcie_device_status[] = { + { PCIEM_STA_CORRECTABLE_ERROR, "Correctable Error Detected" }, + { PCIEM_STA_NON_FATAL_ERROR, "Non-Fatal Error Detected" }, + { PCIEM_STA_FATAL_ERROR, "Fatal Error Detected" }, + { PCIEM_STA_UNSUPPORTED_REQ, "Unsupported Request Detected" }, + { 0, NULL }, +}; + +/* Valid error indicator bits in the PCI-Express device status register. */ +#define PCIE_ERRORS (PCIEM_STA_CORRECTABLE_ERROR | \ + PCIEM_STA_NON_FATAL_ERROR | \ + PCIEM_STA_FATAL_ERROR | \ + PCIEM_STA_UNSUPPORTED_REQ) + +/* AER Uncorrected errors. */ +static struct bit_table aer_uc[] = { + { PCIM_AER_UC_TRAINING_ERROR, "Link Training Error" }, + { PCIM_AER_UC_DL_PROTOCOL_ERROR, "Data Link Protocol Error" }, + { PCIM_AER_UC_SURPRISE_LINK_DOWN, "Surprise Link Down Error" }, + { PCIM_AER_UC_POISONED_TLP, "Poisoned TLP" }, + { PCIM_AER_UC_FC_PROTOCOL_ERROR, "Flow Control Protocol Error" }, + { PCIM_AER_UC_COMPLETION_TIMEOUT, "Completion Timeout" }, + { PCIM_AER_UC_COMPLETER_ABORT, "Completer Abort" }, + { PCIM_AER_UC_UNEXPECTED_COMPLETION, "Unexpected Completion" }, + { PCIM_AER_UC_RECEIVER_OVERFLOW, "Receiver Overflow Error" }, + { PCIM_AER_UC_MALFORMED_TLP, "Malformed TLP" }, + { PCIM_AER_UC_ECRC_ERROR, "ECRC Error" }, + { PCIM_AER_UC_UNSUPPORTED_REQUEST, "Unsupported Request" }, + { PCIM_AER_UC_ACS_VIOLATION, "ACS Violation" }, + { PCIM_AER_UC_INTERNAL_ERROR, "Uncorrectable Internal Error" }, + { PCIM_AER_UC_MC_BLOCKED_TLP, "MC Blocked TLP" }, + { PCIM_AER_UC_ATOMIC_EGRESS_BLK, "AtomicOp Egress Blocked" }, + { PCIM_AER_UC_TLP_PREFIX_BLOCKED, "TLP Prefix Blocked Error" }, + { 0, NULL }, +}; + +/* AER Corrected errors. */ +static struct bit_table aer_cor[] = { + { PCIM_AER_COR_RECEIVER_ERROR, "Receiver Error" }, + { PCIM_AER_COR_BAD_TLP, "Bad TLP" }, + { PCIM_AER_COR_BAD_DLLP, "Bad DLLP" }, + { PCIM_AER_COR_REPLAY_ROLLOVER, "REPLAY_NUM Rollover" }, + { PCIM_AER_COR_REPLAY_TIMEOUT, "Replay Timer Timeout" }, + { PCIM_AER_COR_ADVISORY_NF_ERROR, "Advisory Non-Fatal Error" }, + { PCIM_AER_COR_INTERNAL_ERROR, "Corrected Internal Error" }, + { PCIM_AER_COR_HEADER_LOG_OVFLOW, "Header Log Overflow" }, + { 0, NULL }, +}; + +static void +print_bits(const char *header, struct bit_table *table, uint32_t mask) +{ + int first; + + first = 1; + for (; table->desc != NULL; table++) + if (mask & table->mask) { + if (first) { + printf("%14s = ", header); + first = 0; + } else + printf(" "); + printf("%s\n", table->desc); + mask &= ~table->mask; + } + if (mask != 0) { + if (first) + printf("%14s = ", header); + else + printf(" "); + printf("Unknown: 0x%08x\n", mask); + } +} + +void +list_errors(int fd, struct pci_conf *p) +{ + uint32_t mask, severity; + uint16_t sta, aer; + uint8_t pcie; + + /* First check for standard PCI errors. */ + sta = read_config(fd, &p->pc_sel, PCIR_STATUS, 2); + print_bits("PCI errors", pci_status, sta & PCI_ERRORS); + + /* See if this is a PCI-express device. */ + pcie = pci_find_cap(fd, p, PCIY_EXPRESS); + if (pcie == 0) + return; + + /* Check for PCI-e errors. */ + sta = read_config(fd, &p->pc_sel, pcie + PCIER_DEVICE_STA, 2); + print_bits("PCI-e errors", pcie_device_status, sta & PCIE_ERRORS); + + /* See if this device supports AER. */ + aer = pcie_find_cap(fd, p, PCIZ_AER); + if (aer == 0) + return; + + /* Check for uncorrected errors. */ + mask = read_config(fd, &p->pc_sel, aer + PCIR_AER_UC_STATUS, 4); + severity = read_config(fd, &p->pc_sel, aer + PCIR_AER_UC_SEVERITY, 4); + print_bits("Fatal", aer_uc, mask & severity); + print_bits("Non-fatal", aer_uc, mask & ~severity); + + /* Check for corrected errors. */ + mask = read_config(fd, &p->pc_sel, aer + PCIR_AER_COR_STATUS, 4); + print_bits("Corrected", aer_cor, mask); +} |