github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-07 14:04:54 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

ANDROID: scsi: ufs: add hooks to monitor stats of UFS traffic

Browse Source 
This requires for UFS stat implementations.

Bug: 158050260
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: I7b692ad1dbca1aa3f37b10d7ab91e89499bb68cd
This commit is contained in:
Jaegeuk Kim 2020-10-06 17:45:55 -07:00
parent d47a4b6ba1
commit 028d6f3abc
2 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/scsi/ufs/ufshcd.c
View File

@ -1944,6 +1944,7 @@ void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag)
lrbp->issue_time_stamp = ktime_get();
lrbp->compl_time_stamp = ktime_set(0, 0);
ufshcd_vops_setup_xfer_req(hba, task_tag, (lrbp->cmd ? true : false));
ufshcd_vops_send_command(hba, lrbp);
ufshcd_add_command_trace(hba, task_tag, "send");
ufshcd_clk_scaling_start_busy(hba);
__set_bit(task_tag, &hba->outstanding_reqs);
@ -4933,6 +4934,7 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
lrbp->compl_time_stamp = ktime_get();
cmd = lrbp->cmd;
if (cmd) {
ufshcd_vops_compl_command(hba, lrbp);
ufshcd_add_command_trace(hba, index, "complete");
result = ufshcd_transfer_rsp_status(hba, lrbp);
scsi_dma_unmap(cmd);

18
drivers/scsi/ufs/ufshcd.h
View File

@ -286,6 +286,8 @@ struct ufs_pwr_mode_info {
* variant-specific PRDT fields can be initialized too
* @prepare_command: called when receiving a request in the first place
* @update_sysfs: adds vendor-specific sysfs entries
* @send_command: adds vendor-specific work when sending a command
* @compl_command: adds vendor-specific work when completing a command
*/
struct ufs_hba_variant_ops {
const char *name;
@ -326,6 +328,8 @@ struct ufs_hba_variant_ops {
void (*prepare_command)(struct ufs_hba *hba,
struct request *rq, struct ufshcd_lrb *lrbp);
int (*update_sysfs)(struct ufs_hba *hba);
void (*send_command)(struct ufs_hba *hba, struct ufshcd_lrb *lrbp);
void (*compl_command)(struct ufs_hba *hba, struct ufshcd_lrb *lrbp);
};
/* clock gating state */
@ -1234,6 +1238,20 @@ static inline int ufshcd_vops_update_sysfs(struct ufs_hba *hba)
return 0;
}
static inline void ufshcd_vops_send_command(struct ufs_hba *hba,
struct ufshcd_lrb *lrbp)
{
if (hba->vops && hba->vops->send_command)
hba->vops->send_command(hba, lrbp);
}
static inline void ufshcd_vops_compl_command(struct ufs_hba *hba,
struct ufshcd_lrb *lrbp)
{
if (hba->vops && hba->vops->compl_command)
hba->vops->compl_command(hba, lrbp);
}
extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];
/*