diff options
Diffstat (limited to 'drivers/mmc/host/mmc_hsq.h')
| -rw-r--r-- | drivers/mmc/host/mmc_hsq.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/mmc/host/mmc_hsq.h b/drivers/mmc/host/mmc_hsq.h index ffdd9cd172c3..dd352a6ac32a 100644 --- a/drivers/mmc/host/mmc_hsq.h +++ b/drivers/mmc/host/mmc_hsq.h @@ -2,6 +2,20 @@ #ifndef LINUX_MMC_HSQ_H #define LINUX_MMC_HSQ_H +#define HSQ_NUM_SLOTS 64 +#define HSQ_INVALID_TAG HSQ_NUM_SLOTS + +/* + * For MMC host software queue, we only allow 2 requests in + * flight to avoid a long latency. + */ +#define HSQ_NORMAL_DEPTH 2 +/* + * For 4k random writes, we allow hsq_depth to increase to 5 + * for better performance. + */ +#define HSQ_PERFORMANCE_DEPTH 5 + struct hsq_slot { struct mmc_request *mrq; }; @@ -17,6 +31,8 @@ struct mmc_hsq { int next_tag; int num_slots; int qcnt; + int tail_tag; + int tag_slot[HSQ_NUM_SLOTS]; bool enabled; bool waiting_for_idle; |