diff options
| author | Tatyana Brokhman <tlinder@codeaurora.org> | 2012-10-07 10:33:13 +0200 |
|---|---|---|
| committer | Subhash Jadavani <subhashj@codeaurora.org> | 2016-05-31 15:25:35 -0700 |
| commit | a37b4470259d3ef6e523b296775198de64e43362 (patch) | |
| tree | f7c78ee2a5c6065a628629758b12719b79ef570b /include/linux/mmc | |
| parent | 86dc987a4fc46b6fdad7cae3c28993e852567e84 (diff) | |
mmc: block: Add MMC write packing statistics
The write packing statistics are used for the packed commands unit tests
in order to determine test success or failure
Change-Id: I5eea513991c794543fbb3d009d8b7db0b0912fc5
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>
[subhashj@codeaurora.org: fixed trivial merge conflicts]
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Diffstat (limited to 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/card.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index d89132c1b067..8c70e624325b 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -218,6 +218,26 @@ enum mmc_blk_status { MMC_BLK_NEW_REQUEST, }; +enum mmc_packed_stop_reasons { + EXCEEDS_SEGMENTS = 0, + EXCEEDS_SECTORS, + WRONG_DATA_DIR, + FLUSH_OR_DISCARD, + EMPTY_QUEUE, + REL_WRITE, + THRESHOLD, + LARGE_SEC_ALIGN, + MAX_REASONS, +}; + +struct mmc_wr_pack_stats { + u32 *packing_events; + u32 pack_stop_reason[MAX_REASONS]; + spinlock_t lock; + bool enabled; + bool print_in_read; +}; + /* The number of MMC physical partitions. These consist of: * boot partitions (2), general purpose partitions (4) and * RPMB partition (1) in MMC v4.4. @@ -316,6 +336,8 @@ struct mmc_card { struct dentry *debugfs_root; struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */ unsigned int nr_parts; + + struct mmc_wr_pack_stats wr_pack_stats; /* packed commands stats*/ }; /* @@ -534,5 +556,8 @@ extern void mmc_unregister_driver(struct mmc_driver *); extern void mmc_fixup_device(struct mmc_card *card, const struct mmc_fixup *table); +extern struct mmc_wr_pack_stats *mmc_blk_get_packed_statistics( + struct mmc_card *card); +extern void mmc_blk_init_packed_statistics(struct mmc_card *card); #endif /* LINUX_MMC_CARD_H */ |