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| author | Dolev Raviv <draviv@codeaurora.org> | 2014-06-29 08:40:19 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-07-25 23:17:01 +0200 |
| commit | 1b3e89563119f1e0422230915dcaf23a262628b7 (patch) | |
| tree | ba0bf234fc61ca0667e65b2cba3a5d852a04c53d /drivers/scsi/ufs/ufs.h | |
| parent | ufs: device query status and size check (diff) | |
| download | linux-1b3e89563119f1e0422230915dcaf23a262628b7.tar.xz linux-1b3e89563119f1e0422230915dcaf23a262628b7.zip | |
ufs: Logical Unit (LU) command queue depth
Some of the UFS devices may support different number of commands
that can be queued per LU. At the current implementation,
SW configure each of the UFS devices LU's according to the
controller capability.
In this patch the queue depth available per LU is read and updated in
the LU's SW structure.
Signed-off-by: Dolev Raviv <draviv@codeaurora.org>
Signed-off-by: Raviv Shvili <rshvili@codeaurora.org>
Acked-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/ufs/ufs.h')
| -rw-r--r-- | drivers/scsi/ufs/ufs.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h index 1545cd7877d0..fafcf5e354c6 100644 --- a/drivers/scsi/ufs/ufs.h +++ b/drivers/scsi/ufs/ufs.h @@ -132,6 +132,27 @@ enum desc_idn { QUERY_DESC_IDN_RFU_2 = 0x9, }; +#define UNIT_DESC_MAX_SIZE 0x22 +/* Unit descriptor parameters offsets in bytes*/ +enum unit_desc_param { + UNIT_DESC_PARAM_LEN = 0x0, + UNIT_DESC_PARAM_TYPE = 0x1, + UNIT_DESC_PARAM_UNIT_INDEX = 0x2, + UNIT_DESC_PARAM_LU_ENABLE = 0x3, + UNIT_DESC_PARAM_BOOT_LUN_ID = 0x4, + UNIT_DESC_PARAM_LU_WR_PROTECT = 0x5, + UNIT_DESC_PARAM_LU_Q_DEPTH = 0x6, + UNIT_DESC_PARAM_MEM_TYPE = 0x8, + UNIT_DESC_PARAM_DATA_RELIABILITY = 0x9, + UNIT_DESC_PARAM_LOGICAL_BLK_SIZE = 0xA, + UNIT_DESC_PARAM_LOGICAL_BLK_COUNT = 0xB, + UNIT_DESC_PARAM_ERASE_BLK_SIZE = 0x13, + UNIT_DESC_PARAM_PROVISIONING_TYPE = 0x17, + UNIT_DESC_PARAM_PHY_MEM_RSRC_CNT = 0x18, + UNIT_DESC_PARAM_CTX_CAPABILITIES = 0x20, + UNIT_DESC_PARAM_LARGE_UNIT_SIZE_M1 = 0x22, +}; + /* Exception event mask values */ enum { MASK_EE_STATUS = 0xFFFF, |