lkml.org 
[lkml]   [2016]   [Dec]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v1 12/12] scsi: ufs: Improve fatal error logs
On 2016-12-12 17:19, Joe Perches wrote:
> On Mon, 2016-12-12 at 16:56 -0800, Subhash Jadavani wrote:
>> Errors such as UIC error, illegal OCS values, and others may require
>> more information for debugging. Such information could be hibern8
>> events,
>> events sequences, recoverable errors, error history, and more.
> []
>> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> []
>> @@ -346,6 +346,37 @@ static inline void
>> ufshcd_cond_add_cmd_trace(struct ufs_hba *hba,
> []
>> +static void ufshcd_print_uic_err_hist(struct ufs_hba *hba,
>> + struct ufs_uic_err_reg_hist *err_hist, char *err_name)
>> +{
>> + int i;
>> +
>> + for (i = 0; i < UIC_ERR_REG_HIST_LENGTH; i++) {
>> + int p = (i + err_hist->pos - 1) % UIC_ERR_REG_HIST_LENGTH;
>> +
>> + if (err_hist->reg[p] == 0)
>> + continue;
>> + dev_err(hba->dev, "%s[%d] = 0x%x at %lld us", err_name, i,
>> + err_hist->reg[p], ktime_to_us(err_hist->tstamp[p]));
>
> Please consistently use a terminating \n

Sure, will do that. Thanks.

>
>> + }
>> +}
>> +
>> static void ufshcd_print_host_regs(struct ufs_hba *hba)
>> {
>> /*
>> @@ -362,6 +393,21 @@ static void ufshcd_print_host_regs(struct ufs_hba
>> *hba)
>> dev_err(hba->dev,
>> "hba->outstanding_reqs = 0x%x, hba->outstanding_tasks = 0x%x",
>> (u32)hba->outstanding_reqs, (u32)hba->outstanding_tasks);
>> + dev_err(hba->dev,
>> + "last_hibern8_exit_tstamp at %lld us, hibern8_exit_cnt = %d",
>
> etc...
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-scsi"
> in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html

--
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

\
 
 \ /
  Last update: 2016-12-13 02:39    [W:0.448 / U:0.016 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site