On Thu, 14 Sept 2023 at 08:04, Michael Wu <michael@xxxxxxxxxxxxxxxxx> wrote: > > Entering the recovery system itself indicates a transmission error. > In this situation, we intend to execute the mmc_blk_reset function > to clear any anomalies that may be caused by errors. We have previously > discussed with several MMC device manufacturers, and they expressed > their desire for us to reset the device when errors occur to ensure > stable operation. We aim to make this code compatible with all devices > and ensure its stable performance, so we would like to add this patch > > Signed-off-by: Michael Wu <michael@xxxxxxxxxxxxxxxxx> like: https://lore.kernel.org/linux-mmc/20220603051534.22672-1-quic_sartgarg@xxxxxxxxxxx/ You should enable it in the vendor host. > --- > drivers/mmc/core/block.c | 2 +- > include/linux/mmc/host.h | 1 + > 2 files changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c > index b5b414a71e0b..29fbe0ddeadb 100644 > --- a/drivers/mmc/core/block.c > +++ b/drivers/mmc/core/block.c > @@ -1503,7 +1503,7 @@ void mmc_blk_cqe_recovery(struct mmc_queue *mq) > pr_debug("%s: CQE recovery start\n", mmc_hostname(host)); > > err = mmc_cqe_recovery(host); > - if (err) > + if (err || host->cqe_recovery_reset_always) > mmc_blk_reset(mq->blkdata, host, MMC_BLK_CQE_RECOVERY); > mmc_blk_reset_success(mq->blkdata, MMC_BLK_CQE_RECOVERY); > > diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h > index 62a6847a3b6f..f578541a06b5 100644 > --- a/include/linux/mmc/host.h > +++ b/include/linux/mmc/host.h > @@ -518,6 +518,7 @@ struct mmc_host { > int cqe_qdepth; > bool cqe_enabled; > bool cqe_on; > + bool cqe_recovery_reset_always; > > /* Inline encryption support */ > #ifdef CONFIG_MMC_CRYPTO > -- > 2.29.0 >
