linux-kernel - RE: [Intel-wired-lan] [PATCH] i40e: Add rx_missed_errors for buffer exhaustion

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Message-ID: <BN9PR11MB535438EE5F3F60347E89648380F8A@BN9PR11MB5354.namprd11.prod.outlook.com>
Date:   Thu, 21 Sep 2023 06:22:21 +0000
From:   "Arland, ArpanaX" <arpanax.arland@...el.com>
To:     Yajun Deng <yajun.deng@...ux.dev>,
        "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "pabeni@...hat.com" <pabeni@...hat.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [Intel-wired-lan] [PATCH] i40e: Add rx_missed_errors for buffer
 exhaustion

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of Yajun Deng
> Sent: Wednesday, September 6, 2023 12:58 PM
> To: Nguyen, Anthony L <anthony.l.nguyen@...el.com>; davem@...emloft.net; edumazet@...gle.com; kuba@...nel.org; pabeni@...hat.com
> Cc: netdev@...r.kernel.org; Yajun Deng <yajun.deng@...ux.dev>; intel-wired-lan@...ts.osuosl.org; linux-kernel@...r.kernel.org
> Subject: [Intel-wired-lan] [PATCH] i40e: Add rx_missed_errors for buffer exhaustion
>
> As the comment in struct rtnl_link_stats64, rx_dropped should not include packets dropped by the device due to buffer exhaustion.
> They are counted in rx_missed_errors, procfs folds those two counters together.
>
> Add rx_missed_errors for buffer exhaustion, rx_missed_errors corresponds to rx_discards, rx_dropped corresponds to rx_discards_other.
>
> Signed-off-by: Yajun Deng <yajun.deng@...ux.dev>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_ethtool.c |  3 ++-
>  drivers/net/ethernet/intel/i40e/i40e_main.c    | 18 +++++++-----------
>  .../net/ethernet/intel/i40e/i40e_virtchnl_pf.c |  2 +-
>  3 files changed, 10 insertions(+), 13 deletions(-)
>

Tested-by: Arpana Arland <arpanax.arland@...el.com> (A Contingent worker at Intel)
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