This is a note to let you know that I've just added the patch titled
mmc: block: Retry commands in CQE error recovery
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mmc-block-retry-commands-in-cqe-error-recovery.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8155d1fa3a747baad5caff5f8303321d68ddd48c Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Date: Fri, 3 Nov 2023 10:47:18 +0200
Subject: mmc: block: Retry commands in CQE error recovery
From: Adrian Hunter <adrian.hunter@xxxxxxxxx>
commit 8155d1fa3a747baad5caff5f8303321d68ddd48c upstream.
It is important that MMC_CMDQ_TASK_MGMT command to discard the queue is
successful because otherwise a subsequent reset might fail to flush the
cache first. Retry it and the previous STOP command.
Fixes: 72a5af554df8 ("mmc: core: Add support for handling CQE requests")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Reviewed-by: Avri Altman <avri.altman@xxxxxxx>
Link: https://lore.kernel.org/r/20231103084720.6886-5-adrian.hunter@xxxxxxxxx
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/core/core.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -551,7 +551,7 @@ int mmc_cqe_recovery(struct mmc_host *ho
cmd.flags = MMC_RSP_R1B | MMC_CMD_AC;
cmd.flags &= ~MMC_RSP_CRC; /* Ignore CRC */
cmd.busy_timeout = MMC_CQE_RECOVERY_TIMEOUT;
- mmc_wait_for_cmd(host, &cmd, 0);
+ mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = MMC_CMDQ_TASK_MGMT;
@@ -559,10 +559,13 @@ int mmc_cqe_recovery(struct mmc_host *ho
cmd.flags = MMC_RSP_R1B | MMC_CMD_AC;
cmd.flags &= ~MMC_RSP_CRC; /* Ignore CRC */
cmd.busy_timeout = MMC_CQE_RECOVERY_TIMEOUT;
- err = mmc_wait_for_cmd(host, &cmd, 0);
+ err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
host->cqe_ops->cqe_recovery_finish(host);
+ if (err)
+ err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
+
mmc_retune_release(host);
return err;
Patches currently in stable-queue which might be from adrian.hunter@xxxxxxxxx are
queue-6.6/mmc-block-be-sure-to-wait-while-busy-in-cqe-error-recovery.patch
queue-6.6/mmc-block-do-not-lose-cache-flush-during-cqe-error-recovery.patch
queue-6.6/mmc-sdhci-pci-gli-disable-lpm-during-initialization.patch
queue-6.6/mmc-block-retry-commands-in-cqe-error-recovery.patch
queue-6.6/mmc-cqhci-warn-of-halt-or-task-clear-failure.patch
queue-6.6/mmc-cqhci-fix-task-clearing-in-cqe-error-recovery.patch
queue-6.6/mmc-cqhci-increase-recovery-halt-timeout.patch
