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BACKPORT: FROMGIT: mmc: core: SD: Add BROKEN-SD-DISCARD quirk

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v1 -> v2:
 - Address Ulf's suggestions

Some SD-cards that are SDA-6.0 compliant reports they supports discard
while they actually don't.  This might cause mk2fs to fail while trying
to format the card and revert it to a read-only mode.

While at it, add SD MID for SANDISK. This is because eMMC MID is assign
by JEDEC and SD MID is assigned by SD 3c-LLC.

Signed-off-by: Avri Altman <avri.altman@wdc.com>
Bug: 249507619
(cherry picked from commit 07d2872bf4c864eb83d034263c155746a2fb7a3b git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git)
Change-Id: I43db47edbffc83dd680bad42ae691cef38edbf12
Signed-off-by: Bart Van Assche <bvanassche@google.com>
This commit is contained in:
Avri Altman
2022-09-28 12:57:44 +03:00
committed by Todd Kjos
parent df2004c006
commit 480d6e61c9
4 changed files with 19 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/mmc/core/block.c
View File

@@ -1111,6 +1111,11 @@ static void mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
nr = blk_rq_sectors(req);
do {
unsigned int erase_arg = card->erase_arg;
if (mmc_card_broken_sd_discard(card))
erase_arg = SD_ERASE_ARG;
err = 0;
if (card->quirks & MMC_QUIRK_INAND_CMD38) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
@@ -1121,7 +1126,7 @@ static void mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
card->ext_csd.generic_cmd6_time);
}
if (!err)
err = mmc_erase(card, from, nr, card->erase_arg);
err = mmc_erase(card, from, nr, erase_arg);
} while (err == -EIO && !mmc_blk_reset(md, card->host, type));
if (err)
status = BLK_STS_IOERR;

6
drivers/mmc/core/card.h
View File

@@ -70,6 +70,7 @@ struct mmc_fixup {
#define EXT_CSD_REV_ANY (-1u)
#define CID_MANFID_SANDISK 0x2
#define CID_MANFID_SANDISK_SD 0x3
#define CID_MANFID_ATP 0x9
#define CID_MANFID_TOSHIBA 0x11
#define CID_MANFID_MICRON 0x13
@@ -222,4 +223,9 @@ static inline int mmc_card_broken_hpi(const struct mmc_card *c)
return c->quirks & MMC_QUIRK_BROKEN_HPI;
}
static inline int mmc_card_broken_sd_discard(const struct mmc_card *c)
{
return c->quirks & MMC_QUIRK_BROKEN_SD_DISCARD;
}
#endif

6
drivers/mmc/core/quirks.h
View File

@@ -99,6 +99,12 @@ static const struct mmc_fixup __maybe_unused mmc_blk_fixups[] = {
MMC_FIXUP("V10016", CID_MANFID_KINGSTON, CID_OEMID_ANY, 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,
MMC_QUIRK_BROKEN_SD_DISCARD),
END_FIXUP
};

1
include/linux/mmc/card.h
View File

@@ -295,6 +295,7 @@ struct mmc_card {
#define MMC_QUIRK_BROKEN_IRQ_POLLING (1<<11) /* Polling SDIO_CCCR_INTx could create a fake interrupt */
#define MMC_QUIRK_TRIM_BROKEN (1<<12) /* Skip trim */
#define MMC_QUIRK_BROKEN_HPI (1<<13) /* Disable broken HPI support */
#define MMC_QUIRK_BROKEN_SD_DISCARD (1<<14) /* Disable broken SD discard support */
bool reenable_cmdq; /* Re-enable Command Queue */