scsi: ufs: dump hw regs on link failures (7942f7b5) · Commits · 戴 / test

Dump host state, power info and host/vendor specific registers on link failures. This provides useful info to debug the failures. Signed-off-by:

drivers/scsi/ufs/ufshcd.c

+11 −1

Original line number	Diff line number	Diff line
		@@ -3554,6 +3554,12 @@ static int ufshcd_uic_pwr_ctrl(struct ufs_hba hba, struct uic_command cmd)
		ret = (status != PWR_OK) ? status : -1;
		}
		out:
		if (ret) {
		ufshcd_print_host_state(hba);
		ufshcd_print_pwr_info(hba);
		ufshcd_print_host_regs(hba);
		}

		spin_lock_irqsave(hba->host->host_lock, flags);
		hba->active_uic_cmd = NULL;
		hba->uic_async_done = NULL;
		@@ -4146,8 +4152,12 @@ link_startup:

		ret = ufshcd_make_hba_operational(hba);
		out:
		if (ret)
		if (ret) {
		dev_err(hba->dev, "link startup failed %d\n", ret);
		ufshcd_print_host_state(hba);
		ufshcd_print_pwr_info(hba);
		ufshcd_print_host_regs(hba);
		}
		return ret;
		}