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Diffstat (limited to 'include/scsi/scsi_cmnd.h')
-rw-r--r--include/scsi/scsi_cmnd.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index c2cb5f69635c..8ecfb94049db 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -52,6 +52,11 @@ struct scsi_pointer {
#define SCMD_TAGGED (1 << 0)
#define SCMD_INITIALIZED (1 << 1)
#define SCMD_LAST (1 << 2)
+/*
+ * libata uses SCSI EH to fetch sense data for successful commands.
+ * SCSI EH should not overwrite scmd->result when SCMD_FORCE_EH_SUCCESS is set.
+ */
+#define SCMD_FORCE_EH_SUCCESS (1 << 3)
#define SCMD_FAIL_IF_RECOVERING (1 << 4)
/* flags preserved across unprep / reprep */
#define SCMD_PRESERVED_FLAGS (SCMD_INITIALIZED | SCMD_FAIL_IF_RECOVERING)
@@ -229,7 +234,7 @@ static inline sector_t scsi_get_lba(struct scsi_cmnd *scmd)
static inline unsigned int scsi_logical_block_count(struct scsi_cmnd *scmd)
{
- unsigned int shift = ilog2(scmd->device->sector_size) - SECTOR_SHIFT;
+ unsigned int shift = ilog2(scmd->device->sector_size);
return blk_rq_bytes(scsi_cmd_to_rq(scmd)) >> shift;
}
@@ -348,6 +353,8 @@ static inline u8 get_host_byte(struct scsi_cmnd *cmd)
/**
* scsi_msg_to_host_byte() - translate message byte
+ * @cmd: the SCSI command
+ * @msg: the SCSI parallel message byte to translate
*
* Translate the SCSI parallel message byte to a matching
* host byte setting. A message of COMMAND_COMPLETE indicates