diff options
| -rw-r--r-- | drivers/mmc/core/core.c | 10 | ||||
| -rw-r--r-- | include/linux/mmc/host.h | 26 |
2 files changed, 35 insertions, 1 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 4b70cbfc6d5d..ef53a2578824 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -943,9 +943,11 @@ int mmc_execute_tuning(struct mmc_card *card) } /* Only print error when we don't check for card removal */ - if (!host->detect_change) + if (!host->detect_change) { pr_err("%s: tuning execution failed: %d\n", mmc_hostname(host), err); + mmc_debugfs_err_stats_inc(host, MMC_ERR_TUNING); + } return err; } @@ -2244,6 +2246,12 @@ void mmc_rescan(struct work_struct *work) if (freqs[i] <= host->f_min) break; } + + /* + * Ignore the command timeout errors observed during + * the card init as those are excepted. + */ + host->err_stats[MMC_ERR_CMD_TIMEOUT] = 0; mmc_release_host(host); out: diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index c193c50ccd78..eb8bc5b9b0b7 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -93,6 +93,25 @@ struct mmc_clk_phase_map { struct mmc_host; +enum mmc_err_stat { + MMC_ERR_CMD_TIMEOUT, + MMC_ERR_CMD_CRC, + MMC_ERR_DAT_TIMEOUT, + MMC_ERR_DAT_CRC, + MMC_ERR_AUTO_CMD, + MMC_ERR_ADMA, + MMC_ERR_TUNING, + MMC_ERR_CMDQ_RED, + MMC_ERR_CMDQ_GCE, + MMC_ERR_CMDQ_ICCE, + MMC_ERR_REQ_TIMEOUT, + MMC_ERR_CMDQ_REQ_TIMEOUT, + MMC_ERR_ICE_CFG, + MMC_ERR_CTRL_TIMEOUT, + MMC_ERR_UNEXPECTED_IRQ, + MMC_ERR_MAX, +}; + struct mmc_host_ops { /* * It is optional for the host to implement pre_req and post_req in @@ -501,6 +520,7 @@ struct mmc_host { /* Host Software Queue support */ bool hsq_enabled; + u32 err_stats[MMC_ERR_MAX]; unsigned long private[] ____cacheline_aligned; }; @@ -635,6 +655,12 @@ static inline enum dma_data_direction mmc_get_dma_dir(struct mmc_data *data) return data->flags & MMC_DATA_WRITE ? DMA_TO_DEVICE : DMA_FROM_DEVICE; } +static inline void mmc_debugfs_err_stats_inc(struct mmc_host *host, + enum mmc_err_stat stat) +{ + host->err_stats[stat] += 1; +} + int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); int mmc_send_abort_tuning(struct mmc_host *host, u32 opcode); int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); |