[dpdk-dev] [PATCH] net/iavf: fix performance drop after port reset
Zhang, Qi Z
qi.z.zhang at intel.com
Thu Nov 12 12:47:42 CET 2020
> -----Original Message-----
> From: Rong, Leyi <leyi.rong at intel.com>
> Sent: Thursday, November 12, 2020 1:52 PM
> To: Zhang, Qi Z <qi.z.zhang at intel.com>; Lu, Wenzhuo
> <wenzhuo.lu at intel.com>; Wu, Jingjing <jingjing.wu at intel.com>; Xing, Beilei
> <beilei.xing at intel.com>
> Cc: dev at dpdk.org; Rong, Leyi <leyi.rong at intel.com>
> Subject: [PATCH] net/iavf: fix performance drop after port reset
>
> Needs to reset rxq->rxrearm_start to 0 when reset_rx_queue(), otherwise, the
> random value of rxrearm_start will cause performance drop due to L3
> contested accesses.
>
> Fixes: 69dd4c3d0898 ("net/avf: enable queue and device")
>
> Signed-off-by: Leyi Rong <leyi.rong at intel.com>
Applied to dpdk-next-net-intel.
Thanks
Qi
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