netdev - RE: [Intel-wired-lan] [PATCH iwl-net] ice: fix incorrect counter for buffer allocation failures

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Message-ID: <PH3PPF67C992ECCA25302AB283AF3CBDBDF9132A@PH3PPF67C992ECC.namprd11.prod.outlook.com>
Date: Thu, 21 Aug 2025 06:22:49 +0000
From: "Singh, PriyaX" <priyax.singh@...el.com>
To: "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
CC: "Fijalkowski, Maciej" <maciej.fijalkowski@...el.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>, "Kitszel, Przemyslaw"
	<przemyslaw.kitszel@...el.com>, "Keller, Jacob E" <jacob.e.keller@...el.com>,
	"Lobakin, Aleksander" <aleksander.lobakin@...el.com>, "Nguyen, Anthony L"
	<anthony.l.nguyen@...el.com>, "Kubiak, Michal" <michal.kubiak@...el.com>,
	Paul Menzel <pmenzel@...gen.mpg.de>, "Buvaneswaran, Sujai"
	<sujai.buvaneswaran@...el.com>
Subject: RE: [Intel-wired-lan] [PATCH iwl-net] ice: fix incorrect counter for
 buffer allocation failures

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of
> Michal Kubiak
> Sent: Friday, August 8, 2025 9:23 PM
> To: intel-wired-lan@...ts.osuosl.org
> Cc: Fijalkowski, Maciej <maciej.fijalkowski@...el.com>;
> netdev@...r.kernel.org; Kitszel, Przemyslaw
> <przemyslaw.kitszel@...el.com>; Keller, Jacob E <jacob.e.keller@...el.com>;
> Lobakin, Aleksander <aleksander.lobakin@...el.com>; Nguyen, Anthony L
> <anthony.l.nguyen@...el.com>; Kubiak, Michal <michal.kubiak@...el.com>;
> Paul Menzel <pmenzel@...gen.mpg.de>
> Subject: [Intel-wired-lan] [PATCH iwl-net] ice: fix incorrect counter for buffer
> allocation failures
> 
> Currently, the driver increments `alloc_page_failed` when buffer allocation
> fails in `ice_clean_rx_irq()`. However, this counter is intended for page
> allocation failures, not buffer allocation issues.
> 
> This patch corrects the counter by incrementing `alloc_buf_failed` instead,
> ensuring accurate statistics reporting for buffer allocation failures.
> 
> Fixes: 2fba7dc5157b ("ice: Add support for XDP multi-buffer on Rx side")
> Reported-by: Jacob Keller <jacob.e.keller@...el.com>
> Suggested-by: Paul Menzel <pmenzel@...gen.mpg.de>
> Signed-off-by: Michal Kubiak <michal.kubiak@...el.com>
> ---
>  drivers/net/ethernet/intel/ice/ice_txrx.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c
> b/drivers/net/ethernet/intel/ice/ice_txrx.c
> index 93907ab2eac7..1b1ebfd347ef 100644
> --- a/drivers/net/ethernet/intel/ice/ice_txrx.c
> +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
> @@ -1337,7 +1337,7 @@ static int ice_clean_rx_irq(struct ice_rx_ring
> *rx_ring, int budget)
>  			skb = ice_construct_skb(rx_ring, xdp);
>  		/* exit if we failed to retrieve a buffer */
>  		if (!skb) {
> -			rx_ring->ring_stats->rx_stats.alloc_page_failed++;
> +			rx_ring->ring_stats->rx_stats.alloc_buf_failed++;
>  			xdp_verdict = ICE_XDP_CONSUMED;
>  		}
>  		ice_put_rx_mbuf(rx_ring, xdp, ntc, xdp_verdict);
> --
> 2.45.2

Tested-by: Priya Singh <priyax.singh@...el.com>