scsi: ufs: Add fatal and auto-hibern8 error history
Provide more information about fatal and auto-hibern8 errors to improve debugging by extending existing UFS error history framework. [mkp: typos] Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>alistair/sunxi64-5.4-dsi
parent
48d5b97325
commit
d3c615bf58
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@ -429,6 +429,9 @@ static void ufshcd_print_host_regs(struct ufs_hba *hba)
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ufshcd_print_err_hist(hba, &hba->ufs_stats.nl_err, "nl_err");
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ufshcd_print_err_hist(hba, &hba->ufs_stats.nl_err, "nl_err");
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ufshcd_print_err_hist(hba, &hba->ufs_stats.tl_err, "tl_err");
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ufshcd_print_err_hist(hba, &hba->ufs_stats.tl_err, "tl_err");
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ufshcd_print_err_hist(hba, &hba->ufs_stats.dme_err, "dme_err");
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ufshcd_print_err_hist(hba, &hba->ufs_stats.dme_err, "dme_err");
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ufshcd_print_err_hist(hba, &hba->ufs_stats.fatal_err, "fatal_err");
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ufshcd_print_err_hist(hba, &hba->ufs_stats.auto_hibern8_err,
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"auto_hibern8_err");
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ufshcd_print_clk_freqs(hba);
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ufshcd_print_clk_freqs(hba);
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@ -5439,8 +5442,10 @@ static void ufshcd_check_errors(struct ufs_hba *hba)
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{
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{
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bool queue_eh_work = false;
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bool queue_eh_work = false;
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if (hba->errors & INT_FATAL_ERRORS)
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if (hba->errors & INT_FATAL_ERRORS) {
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ufshcd_update_reg_hist(&hba->ufs_stats.fatal_err, hba->errors);
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queue_eh_work = true;
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queue_eh_work = true;
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}
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if (hba->errors & UIC_ERROR) {
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if (hba->errors & UIC_ERROR) {
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hba->uic_error = 0;
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hba->uic_error = 0;
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@ -5455,6 +5460,8 @@ static void ufshcd_check_errors(struct ufs_hba *hba)
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__func__, (hba->errors & UIC_HIBERNATE_ENTER) ?
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__func__, (hba->errors & UIC_HIBERNATE_ENTER) ?
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"Enter" : "Exit",
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"Enter" : "Exit",
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hba->errors, ufshcd_get_upmcrs(hba));
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hba->errors, ufshcd_get_upmcrs(hba));
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ufshcd_update_reg_hist(&hba->ufs_stats.auto_hibern8_err,
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hba->errors);
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queue_eh_work = true;
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queue_eh_work = true;
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}
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}
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@ -6692,6 +6699,8 @@ static void ufshcd_clear_dbg_ufs_stats(struct ufs_hba *hba)
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memset(&hba->ufs_stats.nl_err, 0, err_reg_hist_size);
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memset(&hba->ufs_stats.nl_err, 0, err_reg_hist_size);
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memset(&hba->ufs_stats.tl_err, 0, err_reg_hist_size);
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memset(&hba->ufs_stats.tl_err, 0, err_reg_hist_size);
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memset(&hba->ufs_stats.dme_err, 0, err_reg_hist_size);
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memset(&hba->ufs_stats.dme_err, 0, err_reg_hist_size);
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memset(&hba->ufs_stats.fatal_err, 0, err_reg_hist_size);
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memset(&hba->ufs_stats.auto_hibern8_err, 0, err_reg_hist_size);
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hba->req_abort_count = 0;
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hba->req_abort_count = 0;
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}
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}
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@ -414,7 +414,7 @@ struct ufs_init_prefetch {
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#define UFS_ERR_REG_HIST_LENGTH 8
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#define UFS_ERR_REG_HIST_LENGTH 8
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/**
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/**
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* struct ufs_err_reg_hist - keeps history of uic errors
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* struct ufs_err_reg_hist - keeps history of errors
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* @pos: index to indicate cyclic buffer position
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* @pos: index to indicate cyclic buffer position
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* @reg: cyclic buffer for registers value
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* @reg: cyclic buffer for registers value
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* @tstamp: cyclic buffer for time stamp
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* @tstamp: cyclic buffer for time stamp
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@ -436,15 +436,23 @@ struct ufs_err_reg_hist {
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* @nl_err: tracks nl-uic errors
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* @nl_err: tracks nl-uic errors
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* @tl_err: tracks tl-uic errors
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* @tl_err: tracks tl-uic errors
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* @dme_err: tracks dme errors
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* @dme_err: tracks dme errors
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* @fatal_err: tracks fatal errors
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* @auto_hibern8_err: tracks auto-hibernate errors
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*/
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*/
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struct ufs_stats {
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struct ufs_stats {
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u32 hibern8_exit_cnt;
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u32 hibern8_exit_cnt;
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ktime_t last_hibern8_exit_tstamp;
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ktime_t last_hibern8_exit_tstamp;
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/* uic specific errors */
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struct ufs_err_reg_hist pa_err;
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struct ufs_err_reg_hist pa_err;
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struct ufs_err_reg_hist dl_err;
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struct ufs_err_reg_hist dl_err;
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struct ufs_err_reg_hist nl_err;
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struct ufs_err_reg_hist nl_err;
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struct ufs_err_reg_hist tl_err;
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struct ufs_err_reg_hist tl_err;
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struct ufs_err_reg_hist dme_err;
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struct ufs_err_reg_hist dme_err;
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/* fatal errors */
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struct ufs_err_reg_hist fatal_err;
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struct ufs_err_reg_hist auto_hibern8_err;
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};
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};
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/**
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/**
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