diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2017-11-29 15:41:08 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-12-11 12:44:35 +0100 |
| commit | 88a516461ee07a994c0e7016faf85f3466de1d09 (patch) | |
| tree | a915155bc254186c3792e4e27e01ddfa12877a9a /drivers/mmc/core | |
| parent | 10f21df4a23540b5da8e88d1030ff8c37818e04f (diff) | |
| download | linux-88a516461ee07a994c0e7016faf85f3466de1d09.tar.bz2 | |
mmc: block: blk-mq: Separate card polling from recovery
Recovery is simpler to understand if it is only used for errors. Create a
separate function for card polling.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/block.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index a710a6e95307..6d2c42c1c33a 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -2139,6 +2139,26 @@ static inline bool mmc_blk_rq_error(struct mmc_blk_request *brq) brq->data.error || brq->cmd.resp[0] & CMD_ERRORS; } +static int mmc_blk_card_busy(struct mmc_card *card, struct request *req) +{ + struct mmc_queue_req *mqrq = req_to_mmc_queue_req(req); + bool gen_err = false; + int err; + + if (mmc_host_is_spi(card->host) || rq_data_dir(req) == READ) + return 0; + + err = card_busy_detect(card, MMC_BLK_TIMEOUT_MS, false, req, &gen_err); + + /* Copy the general error bit so it will be seen later on */ + if (gen_err) { + mqrq->brq.stop.resp[0] |= R1_ERROR; + err = err ? err : -EIO; + } + + return err; +} + static inline void mmc_blk_rw_reset_success(struct mmc_queue *mq, struct request *req) { @@ -2197,8 +2217,15 @@ static void mmc_blk_mq_poll_completion(struct mmc_queue *mq, struct request *req) { struct mmc_queue_req *mqrq = req_to_mmc_queue_req(req); + struct mmc_host *host = mq->card->host; - mmc_blk_mq_rw_recovery(mq, req); + if (mmc_blk_rq_error(&mqrq->brq) || + mmc_blk_card_busy(mq->card, req)) { + mmc_blk_mq_rw_recovery(mq, req); + } else { + mmc_blk_rw_reset_success(mq, req); + mmc_retune_release(host); + } mmc_blk_urgent_bkops(mq, mqrq); } |