diff options
Diffstat (limited to 'bnxt.c')
| -rw-r--r-- | bnxt.c | 97 |
1 files changed, 97 insertions, 0 deletions
@@ -0,0 +1,97 @@ +/* Code to dump registers for NetXtreme-E/NetXtreme-C Broadcom devices. + * + * Copyright (c) 2020 Broadcom Inc. + */ +#include <stdio.h> +#include "internal.h" + +#define BNXT_PXP_REG_LEN 0x3110 +#define BNXT_PCIE_STATS_LEN (12 * sizeof(u64)) + +struct bnxt_pcie_stat { + const char *name; + u16 offset; + u8 size; + const char *format; +}; + +static const struct bnxt_pcie_stat bnxt_pcie_stats[] = { + { .name = "PL Signal integrity errors", .offset = 0, .size = 4, .format = "%llu" }, + { .name = "DL Signal integrity errors", .offset = 4, .size = 4, .format = "%llu" }, + { .name = "TLP Signal integrity errors", .offset = 8, .size = 4, .format = "%llu" }, + { .name = "Link integrity", .offset = 12, .size = 4, .format = "%llu" }, + { .name = "TX TLP traffic rate", .offset = 16, .size = 4, .format = "%llu" }, + { .name = "RX TLP traffic rate", .offset = 20, .size = 4, .format = "%llu" }, + { .name = "TX DLLP traffic rate", .offset = 24, .size = 4, .format = "%llu" }, + { .name = "RX DLLP traffic rate", .offset = 28, .size = 4, .format = "%llu" }, + { .name = "Equalization Phase 0 time(ms)", .offset = 33, .size = 1, .format = "0x%x" }, + { .name = "Equalization Phase 1 time(ms)", .offset = 32, .size = 1, .format = "0x%x" }, + { .name = "Equalization Phase 2 time(ms)", .offset = 35, .size = 1, .format = "0x%x" }, + { .name = "Equalization Phase 3 time(ms)", .offset = 34, .size = 1, .format = "0x%x" }, + { .name = "PHY LTSSM Histogram 0", .offset = 36, .size = 2, .format = "0x%x"}, + { .name = "PHY LTSSM Histogram 1", .offset = 38, .size = 2, .format = "0x%x"}, + { .name = "PHY LTSSM Histogram 2", .offset = 40, .size = 2, .format = "0x%x"}, + { .name = "PHY LTSSM Histogram 3", .offset = 42, .size = 2, .format = "0x%x"}, + { .name = "Recovery Histogram 0", .offset = 44, .size = 2, .format = "0x%x"}, + { .name = "Recovery Histogram 1", .offset = 46, .size = 2, .format = "0x%x"}, +}; + +int bnxt_dump_regs(struct ethtool_drvinfo *info __maybe_unused, struct ethtool_regs *regs) +{ + const struct bnxt_pcie_stat *stats = bnxt_pcie_stats; + u16 *pcie_stats, pcie_stat16; + u32 reg, i, pcie_stat32; + u64 pcie_stat64; + + if (regs->len < BNXT_PXP_REG_LEN) { + fprintf(stdout, "Length too short, expected at least 0x%x\n", + BNXT_PXP_REG_LEN); + return -1; + } + + fprintf(stdout, "PXP Registers\n"); + fprintf(stdout, "Offset\tValue\n"); + fprintf(stdout, "------\t-------\n"); + for (i = 0; i < BNXT_PXP_REG_LEN; i += sizeof(reg)) { + memcpy(®, ®s->data[i], sizeof(reg)); + if (reg) + fprintf(stdout, "0x%04x\t0x%08x\n", i, reg); + } + fprintf(stdout, "\n"); + + if (!regs->version) + return 0; + + if (regs->len < (BNXT_PXP_REG_LEN + BNXT_PCIE_STATS_LEN)) { + fprintf(stdout, "Length is too short, expected 0x%zx\n", + BNXT_PXP_REG_LEN + BNXT_PCIE_STATS_LEN); + return -1; + } + + pcie_stats = (u16 *)(regs->data + BNXT_PXP_REG_LEN); + fprintf(stdout, "PCIe statistics:\n"); + fprintf(stdout, "----------------\n"); + for (i = 0; i < ARRAY_SIZE(bnxt_pcie_stats); i++) { + fprintf(stdout, "%-30s : ", stats[i].name); + switch (stats[i].size) { + case 1: + pcie_stat16 = 0; + memcpy(&pcie_stat16, &pcie_stats[stats[i].offset], sizeof(u16)); + fprintf(stdout, stats[i].format, pcie_stat16); + break; + case 2: + pcie_stat32 = 0; + memcpy(&pcie_stat32, &pcie_stats[stats[i].offset], sizeof(u32)); + fprintf(stdout, stats[i].format, pcie_stat32); + break; + case 4: + pcie_stat64 = 0; + memcpy(&pcie_stat64, &pcie_stats[stats[i].offset], sizeof(u64)); + fprintf(stdout, stats[i].format, pcie_stat64); + break; + } + fprintf(stdout, "\n"); + } + + return 0; +} |