RE: [PATCH V3 4/4] mmc: cqhci: Capture eMMC and SD card errors

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Hi,

Thanks for the review.

Please find the inline comments.

Thanks,
Sajida
-----Original Message-----
From: Adrian Hunter <adrian.hunter@xxxxxxxxx> 
Sent: Friday, January 21, 2022 1:52 PM
To: Sajida Bhanu (Temp) (QUIC) <quic_c_sbhanu@xxxxxxxxxxx>; Asutosh Das (QUIC) <quic_asutoshd@xxxxxxxxxxx>; ulf.hansson@xxxxxxxxxx; agross@xxxxxxxxxx; bjorn.andersson@xxxxxxxxxx; linux-mmc@xxxxxxxxxxxxxxx; linux-arm-msm@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
Cc: stummala@xxxxxxxxxxxxxx; vbadigan@xxxxxxxxxxxxxx; Ram Prakash Gupta (QUIC) <quic_rampraka@xxxxxxxxxxx>; Pradeep Pragallapati (QUIC) <quic_pragalla@xxxxxxxxxxx>; sartgarg@xxxxxxxxxxxxxx; nitirawa@xxxxxxxxxxxxxx; sayalil@xxxxxxxxxxxxxx; Liangliang Lu <luliang@xxxxxxxxxxxxxx>; Bao D . Nguyen <nguyenb@xxxxxxxxxxxxxx>
Subject: Re: [PATCH V3 4/4] mmc: cqhci: Capture eMMC and SD card errors

On 20/01/2022 19:26, Shaik Sajida Bhanu wrote:
> Add changes to capture eMMC and SD card errors.
> This is useful for debug and testing.
> 
> Signed-off-by: Shaik Sajida Bhanu <quic_c_sbhanu@xxxxxxxxxxx>
> Signed-off-by: Liangliang Lu <luliang@xxxxxxxxxxxxxx>
> Signed-off-by: Sayali Lokhande <sayalil@xxxxxxxxxxxxxx>
> Signed-off-by: Bao D. Nguyen <nguyenb@xxxxxxxxxxxxxx>
> Signed-off-by: Ram Prakash Gupta <quic_rampraka@xxxxxxxxxxx>
> ---
>  drivers/mmc/host/cqhci-core.c | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mmc/host/cqhci-core.c 
> b/drivers/mmc/host/cqhci-core.c index b0d30c3..2908d30 100644
> --- a/drivers/mmc/host/cqhci-core.c
> +++ b/drivers/mmc/host/cqhci-core.c
> @@ -822,8 +822,15 @@ irqreturn_t cqhci_irq(struct mmc_host *mmc, u32 intmask, int cmd_error,
>  	pr_debug("%s: cqhci: IRQ status: 0x%08x\n", mmc_hostname(mmc), 
> status);
>  
>  	if ((status & (CQHCI_IS_RED | CQHCI_IS_GCE | CQHCI_IS_ICCE)) ||
> -	    cmd_error || data_error)
> +	    cmd_error || data_error) {
> +		if ((status & CQHCI_IS_RED) && mmc->err_stats_enabled)
> +			mmc_debugfs_err_stats_inc(mmc, MMC_ERR_CMDQ_RED);
> +		if ((status & CQHCI_IS_GCE) && (mmc->err_stats_enabled))
> +			mmc_debugfs_err_stats_inc(mmc, MMC_ERR_CMDQ_GCE);
> +		if ((status & CQHCI_IS_ICCE) && mmc->err_stats_enabled)
> +			mmc_debugfs_err_stats_inc(mmc, MMC_ERR_CMDQ_ICCE);

Please don't check mmc->err_stats_enabled

>>>>>>>Sure.

>  		cqhci_error_irq(mmc, status, cmd_error, data_error);
> +	}
>  
>  	if (status & CQHCI_IS_TCC) {
>  		/* read TCN and complete the request */
> 





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