From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: [PATCH v3] i40e: workaround for X710 performance issues Date: Tue, 16 Dec 2014 09:37:04 +0100 Message-ID: <2702920.KlIrzH6BZs@xps13> References: <1418630187-28917-1-git-send-email-helin.zhang@intel.com> <1418718200-31924-1-git-send-email-helin.zhang@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: dev-VfR2kkLFssw@public.gmane.org, aaron.f.rowden-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org To: Helin Zhang Return-path: In-Reply-To: <1418718200-31924-1-git-send-email-helin.zhang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" Hi Helin, First, thank you and Jing for the excellent review process. 2014-12-16 16:23, Helin Zhang: > On X710, performance number is far from the expectation on recent > firmware versions. The fix for this issue may not be integrated in > the following firmware version. So the workaround in software driver > is needed. It needs to modify the initial values of 3 internal only > registers. Note that the workaround can be removed when it is fixed > in firmware in the future. I want to understand something here. You say the workaround can be removed when firmware will be fixed. But I suppose that some NICs won't be updated so the workaround will be needed forever? -- Thomas