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b=UZmiEeXeNaCe4oJKAypCE8ovMrKbuNJoYeErVGh/+Vx/p9xzML94oiaUtePhuIpPd /RhCNYyoWPmaLO9Z0eMXS0lkXpt42vZ5XIcYOT4wx+aT1gtx3jC8c0KP7xCaoqMPhV ZnHu6HAJHfGi7FtHRv+tzRhCKUzICATsO+7kxK/TlWL8LOv8SX3fknpyF/GEt7KhMw oeI2Ntip6k6u94nH6oxt+a6C+uj86q7/eD+b8TAXbZzXV614j0FOUsaonvWTCaSBaw Hcswqk3yJ5Sw3D8uZXvUs+a1GD0UyQkonp64DVlTt+rOR8hG6/J4HGJuVBp9541WhR OuP+aXtSQZfeQ== Subject: Re: [dpdk-stable] [PATCH] net/mlx5: fix packet padding config for RxQ via DevX X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" Hi, > -----Original Message----- > From: Alexander Kozyrev > Sent: Sunday, November 15, 2020 4:26 PM > To: dev@dpdk.org > Cc: stable@dpdk.org; Raslan Darawsheh ; Dekel Peled > ; Matan Azrad > Subject: [PATCH] net/mlx5: fix packet padding config for RxQ via DevX >=20 > Received packets can be aligned to the size of the cache line on > PCI transactions. This could improve performance by avoiding > partial cache line writes in exchange for increased PCI bandwidth. >=20 > This feature is supposed to be controlled by the rxq_pkt_pad_en > devarg and it is true for an RxQ created via the Verbs API. > But in the DevX API case, it is erroneously controlled by the > rxq_cqe_pad_en devarg instead, which is in charge of the CQE > padding instead and should not control the RxQ creation. >=20 > Fix DevX RxQ creation by using the proper configuration flag for > Rx packet padding that is being set by the rxq_pkt_pad_en devarg. >=20 > Fixes: dc9ceff73c ("net/mlx5: create advanced RxQ via DevX") > Cc: stable@dpdk.org >=20 > Signed-off-by: Alexander Kozyrev > Acked-by: Matan Azrad Patch applied to next-net-mlx, Kindest regards, Raslan Darawsheh