[dpdk-dev] [PATCH v11 2/5] net/i40e: use WC store to update queue tail registers

Lu, Wenzhuo wenzhuo.lu at intel.com
Wed Sep 23 03:19:54 CEST 2020


Hi,

> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Radu Nicolau
> Sent: Wednesday, August 26, 2020 5:56 PM
> To: dev at dpdk.org
> Cc: Xing, Beilei <beilei.xing at intel.com>; Guo, Jia <jia.guo at intel.com>;
> Richardson, Bruce <bruce.richardson at intel.com>; Ananyev, Konstantin
> <konstantin.ananyev at intel.com>; jerinjacobk at gmail.com;
> david.marchand at redhat.com; Trahe, Fiona <fiona.trahe at intel.com>; Zhao1,
> Wei <wei.zhao1 at intel.com>; ruifeng.wang at arm.com; Yang, Qiming
> <qiming.yang at intel.com>; Zhang, Qi Z <qi.z.zhang at intel.com>; Nicolau, Radu
> <radu.nicolau at intel.com>
> Subject: [dpdk-dev] [PATCH v11 2/5] net/i40e: use WC store to update queue tail
> registers
> 
> Performance improvement: use a write combining store instead of a regular
> mmio write to update queue tail registers.
> 
> Signed-off-by: Radu Nicolau <radu.nicolau at intel.com>
> Acked-by: Bruce Richardson <bruce.richardson at intel.com>
Reviewed-by: Wenzhuo Lu <wenzhuo.lu at intel.com>


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