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Commit 7942f7b5 authored by Venkat Gopalakrishnan's avatar Venkat Gopalakrishnan Committed by Martin K. Petersen
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scsi: ufs: dump hw regs on link failures 



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

Signed-off-by: default avatarVenkat Gopalakrishnan <venkatg@codeaurora.org>
Signed-off-by: default avatarSubhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 9c46b867

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 @@ static int ufshcd_link_startup(struct ufs_hba *hba) 


	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;

}