To detect errors like ECC errors, we must parse the R1 response bits. Introduce
a helper function to also set the error value of a command when R1 error bits
are set. Add ECC error to list of flags checked. Use the new helper for the
stop command to call mmc_blk_recovery when detecting ECC errors which are only
flagged on the next command after multiblock.
Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
If adding R1_CARD_ECC_FAILED to CMD_ERRORS is considered too risky for
side-effects, we could also introduce a new define NEXT_CMD_ERRORS maybe?
Yet, I believe it is OK to be done like this.
drivers/mmc/core/block.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index ff3da960c47361..bacaa255c4b16a 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -1287,9 +1287,18 @@ static inline void mmc_apply_rel_rw(struct mmc_blk_request *brq,
R1_ADDRESS_ERROR | /* Misaligned address */ \
R1_BLOCK_LEN_ERROR | /* Transferred block length incorrect */\
R1_WP_VIOLATION | /* Tried to write to protected block */ \
+ R1_CARD_ECC_FAILED | /* Card ECC failed */ \
R1_CC_ERROR | /* Card controller error */ \
R1_ERROR) /* General/unknown error */
+static bool mmc_blk_has_cmd_err(struct mmc_command *cmd)
+{
+ if (!cmd->error && cmd->resp[0] & CMD_ERRORS)
+ cmd->error = -EIO;
+
+ return cmd->error;
+}
+
static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card,
struct mmc_async_req *areq)
{
@@ -1311,7 +1320,7 @@ static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card,
* stop.error indicates a problem with the stop command. Data
* may have been transferred, or may still be transferring.
*/
- if (brq->sbc.error || brq->cmd.error || brq->stop.error ||
+ if (brq->sbc.error || brq->cmd.error || mmc_blk_has_cmd_err(&brq->stop) ||
brq->data.error) {
switch (mmc_blk_cmd_recovery(card, req, brq, &ecc_err, &gen_err)) {
case ERR_RETRY:
--
2.11.0
--
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