netdev - RE: [Intel-wired-lan] [PATCH v2 intel-net 5/6] ice: xsk: allow empty Rx descriptors on XSK ZC data path

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Message-ID: <DM6PR11MB32928282AF0C5E3C90621516F1789@DM6PR11MB3292.namprd11.prod.outlook.com>
Date:   Fri, 17 Dec 2021 15:23:52 +0000
From:   "Bhandare, KiranX" <kiranx.bhandare@...el.com>
To:     "Fijalkowski, Maciej" <maciej.fijalkowski@...el.com>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
CC:     "Mathew, Elza" <elza.mathew@...el.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "bpf@...r.kernel.org" <bpf@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "Karlsson, Magnus" <magnus.karlsson@...el.com>
Subject: RE: [Intel-wired-lan] [PATCH v2 intel-net 5/6] ice: xsk: allow empty
 Rx descriptors on XSK ZC data path


> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of
> Maciej Fijalkowski
> Sent: Monday, December 13, 2021 9:01 PM
> To: intel-wired-lan@...ts.osuosl.org
> Cc: Mathew, Elza <elza.mathew@...el.com>; netdev@...r.kernel.org;
> kuba@...nel.org; bpf@...r.kernel.org; davem@...emloft.net; Karlsson,
> Magnus <magnus.karlsson@...el.com>
> Subject: [Intel-wired-lan] [PATCH v2 intel-net 5/6] ice: xsk: allow empty Rx
> descriptors on XSK ZC data path
> 
> Commit ac6f733a7bd5 ("ice: allow empty Rx descriptors") stated that ice HW
> can produce empty descriptors that are valid and they should be processed.
> 
> Add this support to xsk ZC path to avoid potential processing problems.
> 
> Fixes: 2d4238f55697 ("ice: Add support for AF_XDP")
> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
> ---
>  drivers/net/ethernet/intel/ice/ice_xsk.c | 14 ++++++++++----
>  1 file changed, 10 insertions(+), 4 deletions(-)
> 

Tested-by: Kiran Bhandare <kiranx.bhandare@...el.com>  A Contingent Worker at Intel