[PATCH 04/13] mmc: also set max_segment_size in the device

Christoph Hellwig
2019-06-05T19:09:08Z

If we only set the max_segment_size on the queue an IOMMU merge might
create bigger segments again, so limit the IOMMU merges as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
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 b5b9c6142f08..92900a095796 100644
--- a/drivers/mmc/core/queue.c
+++ b/drivers/mmc/core/queue.c
@@ -377,6 +377,8 @@ static void mmc_setup_queue(struct mmc_queue *mq, struct mmc_card *card)
blk_queue_max_segment_size(mq->queue,
round_down(host->max_seg_size, block_size));

+ dma_set_max_seg_size(mmc_dev(host), queue_max_segment_size(mq->queue));
+
INIT_WORK(&mq->recovery_work, mmc_mq_recovery_handler);
INIT_WORK(&mq->complete_work, mmc_blk_mq_complete_work);

--
2.20.1