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From: "Zhang, Qi Z" <qi.z.zhang@intel.com>
To: "Wu, Wenjun1" <wenjun1.wu@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"Yang, Qiming" <qiming.yang@intel.com>
Cc: "Van Haaren, Harry" <harry.van.haaren@intel.com>,
	"Su, Simei" <simei.su@intel.com>
Subject: RE: [PATCH v4] net/ice: improve performance of RX timestamp offload
Date: Thu, 24 Mar 2022 09:09:13 +0000	[thread overview]
Message-ID: <3da8efff430e43808657c353c748ea9d@intel.com> (raw)
In-Reply-To: <20220228073607.2249410-1-wenjun1.wu@intel.com>



> -----Original Message-----
> From: Wu, Wenjun1 <wenjun1.wu@intel.com>
> Sent: Monday, February 28, 2022 3:36 PM
> To: dev@dpdk.org; Zhang, Qi Z <qi.z.zhang@intel.com>; Yang, Qiming
> <qiming.yang@intel.com>
> Cc: Van Haaren, Harry <harry.van.haaren@intel.com>; Su, Simei
> <simei.su@intel.com>; Wu, Wenjun1 <wenjun1.wu@intel.com>
> Subject: [PATCH v4] net/ice: improve performance of RX timestamp offload
> 
> Previously, each time a burst of packets is received, SW reads HW register
> and assembles it and the timestamp from descriptor together to get the
> complete 64 bits timestamp.
> 
> This patch optimizes the algorithm. The SW only needs to check the
> monotonicity of the low 32bits timestamp to avoid crossing borders.
> Each time before SW receives a burst of packets, it should check the time
> difference between current time and last update time to avoid the low 32
> bits timestamp cycling twice.
> 
> Signed-off-by: Wenjun Wu <wenjun1.wu@intel.com>

Added cc stable

Acked-by: Qi Zhang <qi.z.zhang@intel.com>

Applied to dpdk-next-net-intel.

Thanks
Qi


  parent reply	other threads:[~2022-03-24  9:09 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-22  5:16 [PATCH v1] " Wenjun Wu
2022-02-22  5:50 ` [PATCH v2] " Wenjun Wu
2022-02-22  6:26   ` [PATCH v3] " Wenjun Wu
2022-02-28  7:36     ` [PATCH v4] " Wenjun Wu
2022-03-01 11:07       ` Zhang, Qi Z
2022-03-24  9:09       ` Zhang, Qi Z [this message]
2022-03-24 11:16         ` Kevin Traynor
2022-03-24 11:51           ` Zhang, Qi Z
2022-03-24 12:17             ` Kevin Traynor
2022-03-24 13:05               ` Zhang, Qi Z
2022-03-24 13:44                 ` Kevin Traynor
2022-03-24 13:57                   ` Zhang, Qi Z

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