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authorRobert Marko <robimarko@gmail.com>2023-06-19 22:35:58 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2023-06-20 12:49:24 +0300
commitf1738a1f816233e6dfc2407f24a31d596643fd90 (patch)
tree38a009f93d9ac5c996e552533076e576c01ee81b /drivers/mmc
parentb5c3eb3857976050cde3d7300015f3ab40bf27b1 (diff)
downloadlinux-f1738a1f816233e6dfc2407f24a31d596643fd90.tar.xz
mmc: core: disable TRIM on Kingston EMMC04G-M627
It seems that Kingston EMMC04G-M627 despite advertising TRIM support does not work when the core is trying to use REQ_OP_WRITE_ZEROES. We are seeing I/O errors in OpenWrt under 6.1 on Zyxel NBG7815 that we did not previously have and tracked it down to REQ_OP_WRITE_ZEROES. Trying to use fstrim seems to also throw errors like: [93010.835112] I/O error, dev loop0, sector 16902 op 0x3:(DISCARD) flags 0x800 phys_seg 1 prio class 2 Disabling TRIM makes the error go away, so lets add a quirk for this eMMC to disable TRIM. Signed-off-by: Robert Marko <robimarko@gmail.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230619193621.437358-1-robimarko@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/core/quirks.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h
index 77caa0c903f8..8decb788a3db 100644
--- a/drivers/mmc/core/quirks.h
+++ b/drivers/mmc/core/quirks.h
@@ -108,6 +108,13 @@ static const struct mmc_fixup __maybe_unused mmc_blk_fixups[] = {
MMC_QUIRK_TRIM_BROKEN),
/*
+ * Kingston EMMC04G-M627 advertises TRIM but it does not seems to
+ * support being used to offload WRITE_ZEROES.
+ */
+ MMC_FIXUP("M62704", CID_MANFID_KINGSTON, 0x0100, add_quirk_mmc,
+ MMC_QUIRK_TRIM_BROKEN),
+
+ /*
* Some SD cards reports discard support while they don't
*/
MMC_FIXUP(CID_NAME_ANY, CID_MANFID_SANDISK_SD, 0x5344, add_quirk_sd,