linux-kernel - Re: [Intel-wired-lan] [[PATCH v2 iwl-next] v2 4/4] idpf: add more info during virtchnl transaction time out

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Message-ID: <b3e6a493-ed08-44b1-9cd5-60623318ad83@intel.com>
Date: Thu, 29 Aug 2024 09:07:21 -0700
From: "Linga, Pavan Kumar" <pavan.kumar.linga@...el.com>
To: Manoj Vishwanathan <manojvishy@...gle.com>, Tony Nguyen
	<anthony.l.nguyen@...el.com>, Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
	<intel-wired-lan@...ts.osuosl.org>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<google-lan-reviews@...glegroups.com>
Subject: Re: [Intel-wired-lan] [[PATCH v2 iwl-next] v2 4/4] idpf: add more
 info during virtchnl transaction time out



On 8/26/2024 11:10 AM, Manoj Vishwanathan wrote:
> Add more information related to the transaction like cookie, vc_op,
> salt when transaction times out and include similar information
> when transaction salt does not match.
> 
> Info output for transaction timeout:
> -------------------
> (op:5015 cookie:45fe vc_op:5015 salt:45 timeout:60000ms)
> -------------------
> 
> Signed-off-by: Manoj Vishwanathan <manojvishy@...gle.com>

Reviewed-by: Pavan Kumar Linga <pavan.kumar.linga@...el.com>

> ---
>   drivers/net/ethernet/intel/idpf/idpf_virtchnl.c | 9 +++++----
>   1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
> index 30eec674d594..d8294f31fdf9 100644
> --- a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
> +++ b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
> @@ -517,8 +517,9 @@ static ssize_t idpf_vc_xn_exec(struct idpf_adapter *adapter,
>   		retval = -ENXIO;
>   		goto only_unlock;
>   	case IDPF_VC_XN_WAITING:
> -		dev_notice_ratelimited(&adapter->pdev->dev, "Transaction timed-out (op %d, %dms)\n",
> -				       params->vc_op, params->timeout_ms);
> +		dev_notice_ratelimited(&adapter->pdev->dev,
> +				"Transaction timed-out (op:%d cookie:%04x vc_op:%d salt:%02x timeout:%dms)\n",
> +				params->vc_op, cookie, xn->vc_op, xn->salt, params->timeout_ms);
>   		retval = -ETIME;
>   		break;
>   	case IDPF_VC_XN_COMPLETED_SUCCESS:
> @@ -615,8 +616,8 @@ idpf_vc_xn_forward_reply(struct idpf_adapter *adapter,
>   	idpf_vc_xn_lock(xn);
>   	salt = FIELD_GET(IDPF_VC_XN_SALT_M, msg_info);
>   	if (xn->salt != salt) {
> -		dev_err_ratelimited(&adapter->pdev->dev, "Transaction salt does not match (%02x != %02x)\n",
> -				    xn->salt, salt);
> +		dev_err_ratelimited(&adapter->pdev->dev, "Transaction salt does not match (exp:%d@...x(%d) != got:%d@...x)\n",
> +				xn->vc_op, xn->salt, xn->state, ctlq_msg->cookie.mbx.chnl_opcode, salt);
>   		idpf_vc_xn_unlock(xn);
>   		return -EINVAL;
>   	}