Implement blk-mq support for eMMC hosts using a Command Queue Engine (CQE).
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
---
drivers/mmc/core/block.c | 88 ++++++++++--
drivers/mmc/core/block.h | 2 +
drivers/mmc/core/queue.c | 363 +++++++++++++++++++++++++++++++++++++++++------
drivers/mmc/core/queue.h | 4 +
4 files changed, 402 insertions(+), 55 deletions(-)
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index e6a5b0c6ebe3..829bca5650ee 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -1177,6 +1177,7 @@ static void mmc_blk_issue_drv_op(struct mmc_queue *mq, struct request *req)
struct mmc_queue_req *mq_rq;
struct mmc_card *card = mq->card;
struct mmc_blk_data *md = mq->blkdata;
+ blk_status_t status;
int ret;
int i;
@@ -1212,7 +1213,11 @@ static void mmc_blk_issue_drv_op(struct mmc_queue *mq, struct request *req)
break;
}
mq_rq->drv_op_result = ret;
- blk_end_request_all(req, ret);
+ status = ret ? BLK_STS_IOERR : BLK_STS_OK;
+ if (req->mq_ctx)
+ blk_mq_end_request(req, status);
+ else
+ blk_end_request_all(req, status);
}
static void mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
@@ -1255,7 +1260,10 @@ static void mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
else
mmc_blk_reset_success(md, type);
fail:
- blk_end_request(req, status, blk_rq_bytes(req));
+ if (req->mq_ctx)
+ blk_mq_end_request(req, status);
+ else
+ blk_end_request(req, status, blk_rq_bytes(req));
}
static void mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq,
@@ -1325,7 +1333,10 @@ static void mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq,
if (!err)
mmc_blk_reset_success(md, type);
out:
- blk_end_request(req, status, blk_rq_bytes(req));
+ if (req->mq_ctx)
+ blk_mq_end_request(req, status);
+ else
+ blk_end_request(req, status, blk_rq_bytes(req));
}
static void mmc_blk_issue_flush(struct mmc_queue *mq, struct request *req)
@@ -1335,7 +1346,10 @@ static void mmc_blk_issue_flush(struct mmc_queue *mq, struct request *req)
int ret = 0;
ret = mmc_flush_cache(card);
- blk_end_request_all(req, ret ? BLK_STS_IOERR : BLK_STS_OK);
+ if (req->mq_ctx)
+ blk_mq_end_request(req, ret ? BLK_STS_IOERR : BLK_STS_OK);
+ else
+ blk_end_request_all(req, ret ? BLK_STS_IOERR : BLK_STS_OK);
}
/*
@@ -1650,6 +1664,57 @@ static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq,
#define MMC_CQE_RETRIES 2
+void mmc_blk_mq_cqe_complete_rq(struct request *req)
+{
+ struct mmc_queue_req *mqrq = req_to_mmc_queue_req(req);
+ struct mmc_request *mrq = &mqrq->brq.mrq;
+ struct request_queue *q = req->q;
+ struct mmc_queue *mq = q->queuedata;
+ struct mmc_host *host = mq->card->host;
+ unsigned long flags;
+ bool put_card;
+ int err;
+
+ mmc_cqe_post_req(host, mrq);
+
+ if (mrq->cmd && mrq->cmd->error)
+ err = mrq->cmd->error;
+ else if (mrq->data && mrq->data->error)
+ err = mrq->data->error;
+ else
+ err = 0;
+
+ if (err) {
+ if (mqrq->retries++ < MMC_CQE_RETRIES)
+ blk_mq_requeue_request(req, true);
+ else
+ blk_mq_end_request(req, BLK_STS_IOERR);
+ } else if (mrq->data) {
+ if (blk_update_request(req, BLK_STS_OK, mrq->data->bytes_xfered))
+ blk_mq_requeue_request(req, true);
+ else
+ __blk_mq_end_request(req, BLK_STS_OK);
+ } else {
+ blk_mq_end_request(req, BLK_STS_OK);
+ }
+
+ spin_lock_irqsave(q->queue_lock, flags);
+
+ mq->cqe_in_flight[mmc_cqe_issue_type(host, req)] -= 1;
+
+ put_card = mmc_cqe_tot_in_flight(mq) == 0;
+
+ mmc_cqe_check_busy(mq);
+
+ spin_unlock_irqrestore(q->queue_lock, flags);
+
+ if (!mq->cqe_busy)
+ blk_mq_run_hw_queues(q, true);
+
+ if (put_card)
+ mmc_ctx_put_card(mq->card, &mq->ctx);
+}
+
void mmc_blk_cqe_complete_rq(struct request *req)
{
struct mmc_queue_req *mqrq = req_to_mmc_queue_req(req);
@@ -1733,10 +1798,17 @@ static void mmc_blk_cqe_req_done(struct mmc_request *mrq)
* Block layer timeouts race with completions which means the normal
* completion path cannot be used during recovery.
*/
- if (mq->cqe_in_recovery)
- mmc_blk_cqe_complete_rq(req);
- else
- blk_complete_request(req);
+ if (mq->cqe_in_recovery) {
+ if (q->mq_ops)
+ mmc_blk_mq_cqe_complete_rq(req);
+ else
+ mmc_blk_cqe_complete_rq(req);
+ } else {
+ if (q->mq_ops)
+ blk_mq_complete_request(req);
+ else
+ blk_complete_request(req);
+ }
}
static int mmc_blk_cqe_start_req(struct mmc_host *host, struct mmc_request *mrq)
diff --git a/drivers/mmc/core/block.h b/drivers/mmc/core/block.h
index d7b3d7008b00..446e3b1704f4 100644
--- a/drivers/mmc/core/block.h
+++ b/drivers/mmc/core/block.h
@@ -13,4 +13,6 @@ enum mmc_issued mmc_blk_cqe_issue_rq(struct mmc_queue *mq,
void mmc_blk_cqe_complete_rq(struct request *rq);
void mmc_blk_cqe_recovery(struct mmc_queue *mq);
+void mmc_blk_mq_cqe_complete_rq(struct request *rq);
+
#endif
diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
index 0cb7b0e8ee58..be0ba0a00db3 100644
--- a/drivers/mmc/core/queue.c
+++ b/drivers/mmc/core/queue.c
@@ -22,6 +22,7 @@
#include "block.h"
#include "core.h"
#include "card.h"
+#include "host.h"
#define MMC_QUEUE_BOUNCESZ 65536
@@ -64,12 +65,17 @@ static inline bool mmc_cqe_dcmd_busy(struct mmc_queue *mq)
return mq->cqe_in_flight[MMC_ISSUE_DCMD];
}
-void mmc_cqe_kick_queue(struct mmc_queue *mq)
+void mmc_cqe_check_busy(struct mmc_queue *mq)
{
if ((mq->cqe_busy & MMC_CQE_DCMD_BUSY) && !mmc_cqe_dcmd_busy(mq))
mq->cqe_busy &= ~MMC_CQE_DCMD_BUSY;
mq->cqe_busy &= ~MMC_CQE_QUEUE_FULL;
+}
+
+void mmc_cqe_kick_queue(struct mmc_queue *mq)
+{
+ mmc_cqe_check_busy(mq);
if (mq->asleep && !mq->cqe_busy)
__blk_run_queue(mq->queue);
@@ -98,9 +104,14 @@ enum mmc_issue_type mmc_cqe_issue_type(struct mmc_host *host,
static void __mmc_cqe_recovery_notifier(struct mmc_queue *mq)
{
+ struct request_queue *q = mq->queue;
+
if (!mq->cqe_recovery_needed) {
mq->cqe_recovery_needed = true;
- wake_up_process(mq->thread);
+ if (q->mq_ops)
+ schedule_work(&mq->cqe_recovery_work);
+ else
+ wake_up_process(mq->thread);
}
}
@@ -284,6 +295,39 @@ static enum blk_eh_timer_return mmc_cqe_timed_out(struct request *req)
return __mmc_cqe_timed_out(req);
}
+static enum blk_eh_timer_return mmc_mq_cqe_timed_out(struct request *req,
+ bool reserved)
+{
+ struct request_queue *q = req->q;
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(q->queue_lock, flags);
+ ret = mmc_cqe_timed_out(req);
+ spin_unlock_irqrestore(q->queue_lock, flags);
+
+ return ret;
+}
+
+static void mmc_mq_cqe_recovery_handler(struct work_struct *work)
+{
+ struct mmc_queue *mq = container_of(work, struct mmc_queue,
+ cqe_recovery_work);
+ struct request_queue *q = mq->queue;
+
+ mmc_ctx_task_claim_host(mq->card->host, &mq->ctx);
+
+ mmc_blk_cqe_recovery(mq);
+
+ spin_lock_irq(q->queue_lock);
+ mq->cqe_recovery_needed = false;
+ spin_unlock_irq(q->queue_lock);
+
+ mmc_ctx_task_release_host(mq->card->host, &mq->ctx);
+
+ blk_mq_run_hw_queues(q, true);
+}
+
static int mmc_queue_thread(void *d)
{
struct mmc_queue *mq = d;
@@ -420,11 +464,10 @@ static unsigned int mmc_queue_calc_bouncesz(struct mmc_host *host)
* @req: the request
* @gfp: memory allocation policy
*/
-static int mmc_init_request(struct request_queue *q, struct request *req,
- gfp_t gfp)
+static int __mmc_init_request(struct mmc_queue *mq, struct request *req,
+ gfp_t gfp)
{
struct mmc_queue_req *mq_rq = req_to_mmc_queue_req(req);
- struct mmc_queue *mq = q->queuedata;
struct mmc_card *card = mq->card;
struct mmc_host *host = card->host;
@@ -452,6 +495,12 @@ static int mmc_init_request(struct request_queue *q, struct request *req,
return 0;
}
+static int mmc_init_request(struct request_queue *q, struct request *req,
+ gfp_t gfp)
+{
+ return __mmc_init_request(q->queuedata, req, gfp);
+}
+
static void mmc_exit_request(struct request_queue *q, struct request *req)
{
struct mmc_queue_req *mq_rq = req_to_mmc_queue_req(req);
@@ -467,6 +516,203 @@ static void mmc_exit_request(struct request_queue *q, struct request *req)
mq_rq->sg = NULL;
}
+static int mmc_mq_init_request(struct blk_mq_tag_set *set, struct request *req,
+ unsigned int hctx_idx, unsigned int numa_node)
+{
+ return __mmc_init_request(set->driver_data, req, GFP_KERNEL);
+}
+
+static void mmc_mq_exit_request(struct blk_mq_tag_set *set, struct request *req,
+ unsigned int hctx_idx)
+{
+ struct mmc_queue *mq = set->driver_data;
+
+ mmc_exit_request(mq->queue, req);
+}
+
+static blk_status_t mmc_cqe_queue_rq(struct blk_mq_hw_ctx *hctx,
+ const struct blk_mq_queue_data *bd)
+{
+ struct request *req = bd->rq;
+ struct request_queue *q = req->q;
+ struct mmc_queue *mq = q->queuedata;
+ struct mmc_card *card = mq->card;
+ struct mmc_host *host = card->host;
+ enum mmc_issue_type issue_type;
+ enum mmc_issued issued;
+ bool get_card, retune_ok;
+ int ret;
+
+ issue_type = mmc_cqe_issue_type(host, req);
+
+ spin_lock_irq(q->queue_lock);
+
+ switch (issue_type) {
+ case MMC_ISSUE_DCMD:
+ if (mmc_cqe_dcmd_busy(mq)) {
+ mq->cqe_busy |= MMC_CQE_DCMD_BUSY;
+ spin_unlock_irq(q->queue_lock);
+ return BLK_STS_RESOURCE;
+ }
+ break;
+ case MMC_ISSUE_ASYNC:
+ break;
+ default:
+ /*
+ * Timeouts are handled by mmc core, so set a large value to
+ * avoid races.
+ */
+ req->timeout = 600 * HZ;
+ break;
+ }
+
+ mq->cqe_in_flight[issue_type] += 1;
+ get_card = mmc_cqe_tot_in_flight(mq) == 1;
+ retune_ok = mmc_cqe_qcnt(mq) == 1;
+
+ spin_unlock_irq(q->queue_lock);
+
+ if (!(req->rq_flags & RQF_DONTPREP)) {
+ req_to_mmc_queue_req(req)->retries = 0;
+ req->rq_flags |= RQF_DONTPREP;
+ }
+
+ if (get_card)
+ mmc_ctx_get_card(card, &mq->ctx);
+
+ if (host->need_retune && retune_ok && !host->hold_retune)
+ host->retune_now = true;
+ else
+ host->retune_now = false;
+
+ blk_mq_start_request(req);
+
+ issued = mmc_blk_cqe_issue_rq(mq, req);
+
+ switch (issued) {
+ case MMC_REQ_BUSY:
+ ret = BLK_STS_RESOURCE;
+ break;
+ case MMC_REQ_FAILED_TO_START:
+ ret = BLK_STS_IOERR;
+ break;
+ default:
+ ret = BLK_STS_OK;
+ break;
+ }
+
+ if (issued != MMC_REQ_STARTED) {
+ bool put_card = false;
+
+ spin_lock_irq(q->queue_lock);
+ mq->cqe_in_flight[issue_type] -= 1;
+ if (mmc_cqe_tot_in_flight(mq) == 0)
+ put_card = true;
+ spin_unlock_irq(q->queue_lock);
+ if (put_card)
+ mmc_ctx_put_card(card, &mq->ctx);
+ }
+
+ return ret;
+}
+
+static const struct blk_mq_ops mmc_mq_cqe_ops = {
+ .queue_rq = mmc_cqe_queue_rq,
+ .init_request = mmc_mq_init_request,
+ .exit_request = mmc_mq_exit_request,
+ .complete = mmc_blk_mq_cqe_complete_rq,
+ .timeout = mmc_mq_cqe_timed_out,
+};
+
+static void mmc_setup_queue(struct mmc_queue *mq, struct mmc_card *card)
+{
+ struct mmc_host *host = card->host;
+ u64 limit = BLK_BOUNCE_HIGH;
+
+ if (mmc_dev(host)->dma_mask && *mmc_dev(host)->dma_mask)
+ limit = (u64)dma_max_pfn(mmc_dev(host)) << PAGE_SHIFT;
+
+ queue_flag_set_unlocked(QUEUE_FLAG_NONROT, mq->queue);
+ queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, mq->queue);
+ if (mmc_can_erase(card))
+ mmc_queue_setup_discard(mq->queue, card);
+
+ card->bouncesz = mmc_queue_calc_bouncesz(host);
+ if (card->bouncesz) {
+ blk_queue_max_hw_sectors(mq->queue, card->bouncesz / 512);
+ blk_queue_max_segments(mq->queue, card->bouncesz / 512);
+ blk_queue_max_segment_size(mq->queue, card->bouncesz);
+ } else {
+ blk_queue_bounce_limit(mq->queue, limit);
+ blk_queue_max_hw_sectors(mq->queue,
+ min(host->max_blk_count, host->max_req_size / 512));
+ blk_queue_max_segments(mq->queue, host->max_segs);
+ blk_queue_max_segment_size(mq->queue, host->max_seg_size);
+ }
+
+ /* Initialize thread_sem even if it is not used */
+ sema_init(&mq->thread_sem, 1);
+
+ /* Initialize cqe_recovery_work even if it is not used */
+ INIT_WORK(&mq->cqe_recovery_work, mmc_mq_cqe_recovery_handler);
+}
+
+static int mmc_mq_init_queue(struct mmc_queue *mq, int q_depth,
+ const struct blk_mq_ops *mq_ops, spinlock_t *lock)
+{
+ int ret;
+
+ memset(&mq->tag_set, 0, sizeof(mq->tag_set));
+ mq->tag_set.ops = mq_ops;
+ mq->tag_set.queue_depth = q_depth;
+ mq->tag_set.numa_node = NUMA_NO_NODE;
+ mq->tag_set.flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_SG_MERGE |
+ BLK_MQ_F_BLOCKING;
+ mq->tag_set.nr_hw_queues = 1;
+ mq->tag_set.cmd_size = sizeof(struct mmc_queue_req);
+ mq->tag_set.driver_data = mq;
+
+ ret = blk_mq_alloc_tag_set(&mq->tag_set);
+ if (ret)
+ return ret;
+
+ mq->queue = blk_mq_init_queue(&mq->tag_set);
+ if (IS_ERR(mq->queue)) {
+ ret = PTR_ERR(mq->queue);
+ goto free_tag_set;
+ }
+
+ mq->queue->queue_lock = lock;
+ mq->queue->queuedata = mq;
+
+ return 0;
+
+free_tag_set:
+ blk_mq_free_tag_set(&mq->tag_set);
+
+ return ret;
+}
+
+static int mmc_mq_cqe_init_queue(struct mmc_queue *mq, struct mmc_card *card,
+ spinlock_t *lock)
+{
+ struct mmc_host *host = card->host;
+ int q_depth = min_t(int, card->ext_csd.cmdq_depth, host->cqe_qdepth);
+ int ret;
+
+ ret = mmc_mq_init_queue(mq, q_depth, &mmc_mq_cqe_ops, lock);
+ if (ret)
+ return ret;
+
+ blk_queue_rq_timeout(mq->queue, 60 * HZ);
+
+ host->cqe_recovery_notifier = mmc_cqe_recovery_notifier;
+
+ mmc_setup_queue(mq, card);
+
+ return 0;
+}
+
/**
* mmc_init_queue - initialise a queue structure.
* @mq: mmc queue
@@ -480,14 +726,14 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
spinlock_t *lock, const char *subname, int area_type)
{
struct mmc_host *host = card->host;
- u64 limit = BLK_BOUNCE_HIGH;
int ret = -ENOMEM;
bool use_cqe = host->cqe_enabled && area_type != MMC_BLK_DATA_AREA_RPMB;
- if (mmc_dev(host)->dma_mask && *mmc_dev(host)->dma_mask)
- limit = (u64)dma_max_pfn(mmc_dev(host)) << PAGE_SHIFT;
-
mq->card = card;
+
+ if (mmc_host_use_blk_mq(host) && use_cqe)
+ return mmc_mq_cqe_init_queue(mq, card, lock);
+
mq->queue = blk_alloc_queue(GFP_KERNEL);
if (!mq->queue)
return -ENOMEM;
@@ -523,25 +769,8 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
}
blk_queue_prep_rq(mq->queue, mmc_prep_request);
- queue_flag_set_unlocked(QUEUE_FLAG_NONROT, mq->queue);
- queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, mq->queue);
- if (mmc_can_erase(card))
- mmc_queue_setup_discard(mq->queue, card);
-
- card->bouncesz = mmc_queue_calc_bouncesz(host);
- if (card->bouncesz) {
- blk_queue_max_hw_sectors(mq->queue, card->bouncesz / 512);
- blk_queue_max_segments(mq->queue, card->bouncesz / 512);
- blk_queue_max_segment_size(mq->queue, card->bouncesz);
- } else {
- blk_queue_bounce_limit(mq->queue, limit);
- blk_queue_max_hw_sectors(mq->queue,
- min(host->max_blk_count, host->max_req_size / 512));
- blk_queue_max_segments(mq->queue, host->max_segs);
- blk_queue_max_segment_size(mq->queue, host->max_seg_size);
- }
- sema_init(&mq->thread_sem, 1);
+ mmc_setup_queue(mq, card);
mq->thread = kthread_run(use_cqe ? mmc_cqe_thread : mmc_queue_thread,
mq, "mmcqd/%d%s", host->index,
@@ -558,11 +787,63 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
return ret;
}
+static void mmc_mq_queue_suspend(struct mmc_queue *mq)
+{
+ blk_mq_quiesce_queue(mq->queue);
+
+ /*
+ * The host remains claimed while there are outstanding requests, so
+ * simply claiming and releasing here ensures there are none.
+ */
+ mmc_claim_host(mq->card->host);
+ mmc_release_host(mq->card->host);
+}
+
+static void mmc_mq_queue_resume(struct mmc_queue *mq)
+{
+ blk_mq_unquiesce_queue(mq->queue);
+}
+
+static void __mmc_queue_suspend(struct mmc_queue *mq)
+{
+ struct request_queue *q = mq->queue;
+ unsigned long flags;
+
+ if (!mq->suspended) {
+ mq->suspended |= true;
+
+ spin_lock_irqsave(q->queue_lock, flags);
+ blk_stop_queue(q);
+ spin_unlock_irqrestore(q->queue_lock, flags);
+
+ down(&mq->thread_sem);
+ }
+}
+
+static void __mmc_queue_resume(struct mmc_queue *mq)
+{
+ struct request_queue *q = mq->queue;
+ unsigned long flags;
+
+ if (mq->suspended) {
+ mq->suspended = false;
+
+ up(&mq->thread_sem);
+
+ spin_lock_irqsave(q->queue_lock, flags);
+ blk_start_queue(q);
+ spin_unlock_irqrestore(q->queue_lock, flags);
+ }
+}
+
void mmc_cleanup_queue(struct mmc_queue *mq)
{
struct request_queue *q = mq->queue;
unsigned long flags;
+ if (q->mq_ops)
+ return;
+
/* Make sure the queue isn't suspended, as that will deadlock */
mmc_queue_resume(mq);
@@ -590,17 +871,11 @@ void mmc_cleanup_queue(struct mmc_queue *mq)
void mmc_queue_suspend(struct mmc_queue *mq)
{
struct request_queue *q = mq->queue;
- unsigned long flags;
-
- if (!mq->suspended) {
- mq->suspended |= true;
-
- spin_lock_irqsave(q->queue_lock, flags);
- blk_stop_queue(q);
- spin_unlock_irqrestore(q->queue_lock, flags);
- down(&mq->thread_sem);
- }
+ if (q->mq_ops)
+ mmc_mq_queue_suspend(mq);
+ else
+ __mmc_queue_suspend(mq);
}
/**
@@ -610,17 +885,11 @@ void mmc_queue_suspend(struct mmc_queue *mq)
void mmc_queue_resume(struct mmc_queue *mq)
{
struct request_queue *q = mq->queue;
- unsigned long flags;
-
- if (mq->suspended) {
- mq->suspended = false;
- up(&mq->thread_sem);
-
- spin_lock_irqsave(q->queue_lock, flags);
- blk_start_queue(q);
- spin_unlock_irqrestore(q->queue_lock, flags);
- }
+ if (q->mq_ops)
+ mmc_mq_queue_resume(mq);
+ else
+ __mmc_queue_resume(mq);
}
/*
diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h
index 8e9273d977c0..ab27d1e03164 100644
--- a/drivers/mmc/core/queue.h
+++ b/drivers/mmc/core/queue.h
@@ -74,6 +74,8 @@ struct mmc_queue {
struct mmc_card *card;
struct task_struct *thread;
struct semaphore thread_sem;
+ struct mmc_ctx ctx;
+ struct blk_mq_tag_set tag_set;
bool suspended;
bool asleep;
struct mmc_blk_data *blkdata;
@@ -92,6 +94,7 @@ struct mmc_queue {
bool cqe_in_recovery;
#define MMC_CQE_DCMD_BUSY BIT(0)
#define MMC_CQE_QUEUE_FULL BIT(1)
+ struct work_struct cqe_recovery_work;
};
extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *,
@@ -107,6 +110,7 @@ extern unsigned int mmc_queue_map_sg(struct mmc_queue *,
extern int mmc_access_rpmb(struct mmc_queue *);
+void mmc_cqe_check_busy(struct mmc_queue *mq);
void mmc_cqe_kick_queue(struct mmc_queue *mq);
enum mmc_issue_type mmc_cqe_issue_type(struct mmc_host *host,
--
1.9.1
