diff options
| author | Bart Van Assche <bvanassche@acm.org> | 2025-10-31 13:39:31 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-11-12 17:02:34 -0500 |
| commit | 22089c218037ca7cd50d4fa20e8b5bd746a9b397 (patch) | |
| tree | 1cdfbb962d39b530d5298ea947084008730b514e /include | |
| parent | e5f9cc2af9a82700e989ac08be3c85c25046a6f6 (diff) | |
scsi: ufs: core: Optimize the hot path
Set .cmd_size in the SCSI host template such that the SCSI core makes
struct scsi_cmnd and struct ufshcd_lrb adjacent. Convert the cmd->lrbp
and lrbp->cmd memory loads into pointer offset calculations. Remove the
data structure members that became superfluous, namely ufshcd_lrb.cmd
and ufs_hba.lrb. Since ufshcd_lrb.cmd is removed, this pointer cannot be
used anymore to test whether or not a command is a SCSI command.
Introduce a new function for this purpose, namely ufshcd_is_scsi_cmd().
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251031204029.2883185-24-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/ufs/ufshcd.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index 00152e135fc9..fbed47b6c61f 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -161,7 +161,6 @@ struct ufs_pm_lvl_states { * @ucd_prdt_dma_addr: PRDT dma address for debug * @ucd_rsp_dma_addr: UPIU response dma address for debug * @ucd_req_dma_addr: UPIU request dma address for debug - * @cmd: pointer to SCSI command * @scsi_status: SCSI status of the command * @command_type: SCSI, UFS, Query. * @task_tag: Task tag of the command @@ -186,7 +185,6 @@ struct ufshcd_lrb { dma_addr_t ucd_rsp_dma_addr; dma_addr_t ucd_prdt_dma_addr; - struct scsi_cmnd *cmd; int scsi_status; int command_type; @@ -833,7 +831,6 @@ enum ufshcd_mcq_opr { * @spm_lvl: desired UFS power management level during system PM. * @pm_op_in_progress: whether or not a PM operation is in progress. * @ahit: value of Auto-Hibernate Idle Timer register. - * @lrb: local reference block * @outstanding_tasks: Bits representing outstanding task requests * @outstanding_lock: Protects @outstanding_reqs. * @outstanding_reqs: Bits representing outstanding transfer requests @@ -976,8 +973,6 @@ struct ufs_hba { /* Auto-Hibernate Idle Timer register value */ u32 ahit; - struct ufshcd_lrb *lrb; - unsigned long outstanding_tasks; spinlock_t outstanding_lock; unsigned long outstanding_reqs; |