In case mmcblk relies on requeueing to fulfill block layer requests due to hardware or driver restricting the max_blk_count to 1 also limit the hardware queue size to 1 to get consecutive accesses instead of a round-robin on all queued reads. See SDHCI_QUIRK_NO_MULTIBLOCK for such a restriction. Signed-off-by: Christian Loehle <cloehle@xxxxxxxxxxxxxx> --- drivers/mmc/core/queue.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c index fefaa901b50f..3a20f3933502 100644 --- a/drivers/mmc/core/queue.c +++ b/drivers/mmc/core/queue.c @@ -425,6 +425,8 @@ struct gendisk *mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card) if (host->cqe_enabled && !host->hsq_enabled) mq->tag_set.queue_depth = min_t(int, card->ext_csd.cmdq_depth, host->cqe_qdepth); + else if (host->max_blk_count == 1) + mq->tag_set.queue_depth = 1; else mq->tag_set.queue_depth = MMC_QUEUE_DEPTH; mq->tag_set.numa_node = NUMA_NO_NODE; -- 2.37.3 Hyperstone GmbH | Reichenaustr. 39a | 78467 Konstanz Managing Director: Dr. Jan Peter Berns. Commercial register of local courts: Freiburg HRB381782
