From: "jangsub.yi" <jangsub.yi@xxxxxxxxxxx>
Currently, there is no way to set up a host-dependent MMC queue.
In UFS driver, it is possible to configure the request queue in
ufshcd_slave_configure.
There are cases where we need to configure and check the current
state of the request queue on the host operation. For example,
mmc_queue->in_recovery, in_flight, mmc_queue->queue->queue_flag, etc.
Additionally, since the timeout setting may be longer depending
on the device, block layer settings such as timeout are also required.
To add the configuration for the MMC queue, I will add the corresponding
code and initially try to add it during initialization in block.c.
The detailed implementation will be done on the host side.
Signed-off-by: jangsub.yi <jangsub.yi@xxxxxxxxxxx>
---
drivers/mmc/core/block.c | 3 +++
include/linux/mmc/host.h | 5 +++++
2 files changed, 8 insertions(+)
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index ef06a4d5d65b..d292f93ca732 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -3261,6 +3261,9 @@ static int mmc_blk_probe(struct mmc_card *card)
goto out_free;
}
+ if (card->host->ops->config_host)
+ card->host->ops->config_host(card, &md->queue);
+
ret = mmc_blk_alloc_parts(card, md);
if (ret)
goto out;
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 8fc2b328ec4d..81e21553030b 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -113,6 +113,8 @@ enum mmc_err_stat {
MMC_ERR_MAX,
};
+struct mmc_queue;
+
struct mmc_host_ops {
/*
* It is optional for the host to implement pre_req and post_req in
@@ -219,6 +221,9 @@ struct mmc_host_ops {
/* Initialize an SD express card, mandatory for MMC_CAP2_SD_EXP. */
int (*init_sd_express)(struct mmc_host *host, struct mmc_ios *ios);
+
+ /* Configure block layer setting related on MMC queue */
+ void (*config_host)(struct mmc_card *card, struct mmc_queue *mq);
};
struct mmc_cqe_ops {
--
2.17.1
