| Message ID | 6e379c703fe149e1923b31df1a33701e@hyperstone.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [PATCHv2] mmc: block: Add single read for 4k sector cards | expand |
On 24/06/22 18:29, Christian Löhle wrote: > Cards with 4k native sector size may only be read 4k-aligned, > accommodate for this in the single read recovery and use it. Thanks for the patch. > > Fixes: 81196976ed946 (mmc: block: Add blk-mq support) > Signed-off-by: Christian Loehle <cloehle@hyperstone.com> FYI checkpatch says: WARNING: From:/Signed-off-by: email name mismatch: 'From: "Christian Löhle" <CLoehle@hyperstone.com>' != 'Signed-off-by: Christian Loehle <cloehle@hyperstone.com>' > --- > drivers/mmc/core/block.c | 25 ++++++++++++------------- > 1 file changed, 12 insertions(+), 13 deletions(-) > > diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c > index f4a1281658db..a75a208ce203 100644 > --- a/drivers/mmc/core/block.c > +++ b/drivers/mmc/core/block.c > @@ -176,7 +176,7 @@ static inline int mmc_blk_part_switch(struct mmc_card *card, > unsigned int part_type); > static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq, > struct mmc_card *card, > - int disable_multi, > + int recovery_mode, > struct mmc_queue *mq); > static void mmc_blk_hsq_req_done(struct mmc_request *mrq); > > @@ -1302,7 +1302,7 @@ static void mmc_blk_eval_resp_error(struct mmc_blk_request *brq) > } > > static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq, > - int disable_multi, bool *do_rel_wr_p, > + int recovery_mode, bool *do_rel_wr_p, > bool *do_data_tag_p) > { > struct mmc_blk_data *md = mq->blkdata; > @@ -1372,8 +1372,8 @@ static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq, > * at a time in order to accurately determine which > * sectors can be read successfully. > */ > - if (disable_multi) > - brq->data.blocks = 1; > + if (recovery_mode) > + brq->data.blocks = mmc_large_sector(card) ? 8 : 1; I suggest changing to use queue_physical_block_size() here and further below brq->data.blocks = queue_physical_block_size(req->q) >> SECTOR_SHIFT; > > /* > * Some controllers have HW issues while operating > @@ -1590,7 +1590,7 @@ static int mmc_blk_cqe_issue_rw_rq(struct mmc_queue *mq, struct request *req) > > static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq, > struct mmc_card *card, > - int disable_multi, > + int recovery_mode, > struct mmc_queue *mq) > { > u32 readcmd, writecmd; > @@ -1599,7 +1599,7 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq, > struct mmc_blk_data *md = mq->blkdata; > bool do_rel_wr, do_data_tag; > > - mmc_blk_data_prep(mq, mqrq, disable_multi, &do_rel_wr, &do_data_tag); > + mmc_blk_data_prep(mq, mqrq, recovery_mode, &do_rel_wr, &do_data_tag); > > brq->mrq.cmd = &brq->cmd; > > @@ -1690,7 +1690,7 @@ static int mmc_blk_fix_state(struct mmc_card *card, struct request *req) > > #define MMC_READ_SINGLE_RETRIES 2 > > -/* Single sector read during recovery */ > +/* Single (native) sector read during recovery */ > static void mmc_blk_read_single(struct mmc_queue *mq, struct request *req) > { > struct mmc_queue_req *mqrq = req_to_mmc_queue_req(req); > @@ -1698,6 +1698,7 @@ static void mmc_blk_read_single(struct mmc_queue *mq, struct request *req) > struct mmc_card *card = mq->card; > struct mmc_host *host = card->host; > blk_status_t error = BLK_STS_OK; > + size_t bytes_per_read = mmc_large_sector(card) ? 4096 : 512; size_t bytes_per_read = queue_physical_block_size(req->q); > > do { > u32 status; > @@ -1732,13 +1733,13 @@ static void mmc_blk_read_single(struct mmc_queue *mq, struct request *req) > else > error = BLK_STS_OK; > > - } while (blk_update_request(req, error, 512)); > + } while (blk_update_request(req, error, bytes_per_read)); > > return; > > error_exit: > mrq->data->bytes_xfered = 0; > - blk_update_request(req, BLK_STS_IOERR, 512); > + blk_update_request(req, BLK_STS_IOERR, bytes_per_read); > /* Let it try the remaining request again */ > if (mqrq->retries > MMC_MAX_RETRIES - 1) > mqrq->retries = MMC_MAX_RETRIES - 1; > @@ -1879,10 +1880,8 @@ static void mmc_blk_mq_rw_recovery(struct mmc_queue *mq, struct request *req) > return; > } > > - /* FIXME: Missing single sector read for large sector size */ > - if (!mmc_large_sector(card) && rq_data_dir(req) == READ && > - brq->data.blocks > 1) { > - /* Read one sector at a time */ > + if (rq_data_dir(req) == READ && brq->data.blocks > 1) { > + /* Read one (native) sector at a time */ > mmc_blk_read_single(mq, req); > return; > }
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index f4a1281658db..a75a208ce203 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -176,7 +176,7 @@ static inline int mmc_blk_part_switch(struct mmc_card *card, unsigned int part_type); static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq, struct mmc_card *card, - int disable_multi, + int recovery_mode, struct mmc_queue *mq); static void mmc_blk_hsq_req_done(struct mmc_request *mrq); @@ -1302,7 +1302,7 @@ static void mmc_blk_eval_resp_error(struct mmc_blk_request *brq) } static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq, - int disable_multi, bool *do_rel_wr_p, + int recovery_mode, bool *do_rel_wr_p, bool *do_data_tag_p) { struct mmc_blk_data *md = mq->blkdata; @@ -1372,8 +1372,8 @@ static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq, * at a time in order to accurately determine which * sectors can be read successfully. */ - if (disable_multi) - brq->data.blocks = 1; + if (recovery_mode) + brq->data.blocks = mmc_large_sector(card) ? 8 : 1; /* * Some controllers have HW issues while operating @@ -1590,7 +1590,7 @@ static int mmc_blk_cqe_issue_rw_rq(struct mmc_queue *mq, struct request *req) static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq, struct mmc_card *card, - int disable_multi, + int recovery_mode, struct mmc_queue *mq) { u32 readcmd, writecmd; @@ -1599,7 +1599,7 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq, struct mmc_blk_data *md = mq->blkdata; bool do_rel_wr, do_data_tag; - mmc_blk_data_prep(mq, mqrq, disable_multi, &do_rel_wr, &do_data_tag); + mmc_blk_data_prep(mq, mqrq, recovery_mode, &do_rel_wr, &do_data_tag); brq->mrq.cmd = &brq->cmd; @@ -1690,7 +1690,7 @@ static int mmc_blk_fix_state(struct mmc_card *card, struct request *req) #define MMC_READ_SINGLE_RETRIES 2 -/* Single sector read during recovery */ +/* Single (native) sector read during recovery */ static void mmc_blk_read_single(struct mmc_queue *mq, struct request *req) { struct mmc_queue_req *mqrq = req_to_mmc_queue_req(req); @@ -1698,6 +1698,7 @@ static void mmc_blk_read_single(struct mmc_queue *mq, struct request *req) struct mmc_card *card = mq->card; struct mmc_host *host = card->host; blk_status_t error = BLK_STS_OK; + size_t bytes_per_read = mmc_large_sector(card) ? 4096 : 512; do { u32 status; @@ -1732,13 +1733,13 @@ static void mmc_blk_read_single(struct mmc_queue *mq, struct request *req) else error = BLK_STS_OK; - } while (blk_update_request(req, error, 512)); + } while (blk_update_request(req, error, bytes_per_read)); return; error_exit: mrq->data->bytes_xfered = 0; - blk_update_request(req, BLK_STS_IOERR, 512); + blk_update_request(req, BLK_STS_IOERR, bytes_per_read); /* Let it try the remaining request again */ if (mqrq->retries > MMC_MAX_RETRIES - 1) mqrq->retries = MMC_MAX_RETRIES - 1; @@ -1879,10 +1880,8 @@ static void mmc_blk_mq_rw_recovery(struct mmc_queue *mq, struct request *req) return; } - /* FIXME: Missing single sector read for large sector size */ - if (!mmc_large_sector(card) && rq_data_dir(req) == READ && - brq->data.blocks > 1) { - /* Read one sector at a time */ + if (rq_data_dir(req) == READ && brq->data.blocks > 1) { + /* Read one (native) sector at a time */ mmc_blk_read_single(mq, req); return; }
Cards with 4k native sector size may only be read 4k-aligned, accommodate for this in the single read recovery and use it. Fixes: 81196976ed946 (mmc: block: Add blk-mq support) Signed-off-by: Christian Loehle <cloehle@hyperstone.com> --- drivers/mmc/core/block.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-)