diff options
| author | Venkat Gopalakrishnan <venkatg@codeaurora.org> | 2015-05-29 16:51:43 -0700 |
|---|---|---|
| committer | Subhash Jadavani <subhashj@codeaurora.org> | 2016-05-31 15:26:27 -0700 |
| commit | fc4b531dfdca023ac59389e7acf24f21aa6074ed (patch) | |
| tree | 06f8b19248e723c4689d43aadfbbe517e9a927fe /drivers/mmc/card/queue.c | |
| parent | ee66ddaa077507729c911f8a9cad2b3376fe8284 (diff) | |
mmc: card: add read/write support in command queue mode
Command queueing is defined in eMMC-5.1. It is designed for
higher performance by ensuring upto 32 requests to be serviced
at a time.
Adds read/write support for CMDQ enabled devices.
Change-Id: I136ddea8e5ca57eb4f85ca6e72c60001a7e24f78
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Konstantin Dorfman <kdorfman@codeaurora.org>
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
[subhashj@codeaurora.org: fixed trivial merge conflicts]
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Diffstat (limited to 'drivers/mmc/card/queue.c')
| -rw-r--r-- | drivers/mmc/card/queue.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c index 02fc50e65c55..04a9e9274b7a 100644 --- a/drivers/mmc/card/queue.c +++ b/drivers/mmc/card/queue.c @@ -573,6 +573,7 @@ int mmc_cmdq_init(struct mmc_queue *mq, struct mmc_card *card) /* one slot is reserved for dcmd requests */ int q_depth = card->ext_csd.cmdq_depth - 1; + card->cmdq_init = false; if (!(card->host->caps2 & MMC_CAP2_CMD_QUEUE)) { ret = -ENOTSUPP; goto out; @@ -606,6 +607,7 @@ int mmc_cmdq_init(struct mmc_queue *mq, struct mmc_card *card) } blk_queue_softirq_done(mq->queue, mmc_cmdq_softirq_done); + card->cmdq_init = true; goto out; free_mqrq_sg: |