From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id A895C98 for ; Mon, 16 Jan 2017 21:30:51 +0100 (CET) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP; 16 Jan 2017 12:30:50 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,240,1477983600"; d="scan'208";a="31287934" Received: from fyigit-mobl1.ger.corp.intel.com (HELO [10.237.220.38]) ([10.237.220.38]) by orsmga002.jf.intel.com with ESMTP; 16 Jan 2017 12:30:49 -0800 To: Jeff Guo , helin.zhang@intel.com, jingjing.wu@intel.com References: <1482460523-74460-1-git-send-email-jia.guo@intel.com> <1455295157-16299-1-git-send-email-jia.guo@intel.com> Cc: dev@dpdk.org From: Ferruh Yigit Message-ID: <3903bf28-b07a-04c8-0a0c-329f260bedbd@intel.com> Date: Mon, 16 Jan 2017 20:30:48 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.6.0 MIME-Version: 1.0 In-Reply-To: <1455295157-16299-1-git-send-email-jia.guo@intel.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH v2] doc: add known uio_pci_generic issue for i40e X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 Jan 2017 20:30:52 -0000 On 2/12/2016 4:39 PM, Jeff Guo wrote: > From: "Guo, Jia" > > When bind with uio_pci_generic in X710/XL710/XXV710, the result > is failed. uio_pci_generic is not supported by X710/XL710/XXV710. Hi Jeff, There is a Linux commit causing the issue, right. Commit done because of the reasons mentioned in "Description". Do you think does it make sense to note that Linux commit, and Linux kernel version that has been introduced? > > Signed-off-by: Guo, Jia You are known as "Jeff Guo " to DPDK repo, based on previous commits. If this is correct, is there any problem to continue like this? > --- > v2: add X710/XXV710 limitation case Also v1 Acked-by JingJing already, you can keep her ack in next version of the patch. > --- > doc/guides/rel_notes/known_issues.rst | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > > diff --git a/doc/guides/rel_notes/known_issues.rst b/doc/guides/rel_notes/known_issues.rst > index 3cd4237..1751451 100644 > --- a/doc/guides/rel_notes/known_issues.rst > +++ b/doc/guides/rel_notes/known_issues.rst > @@ -640,3 +640,27 @@ I40e VF may not receive packets in the promiscuous mode > > **Driver/Module**: > Poll Mode Driver (PMD). > + > + > +uio_pci_generic bind failed in X710/XL710/XXV710 > +------------------------------------------------------- > + > +**Description**: > + uio_pci_generic is not supported by XL710, since the errata of XL710 that the feature > + about the Interrupt Status bit is not implemented.The errata is the item #71 from the > + `xl710 controller spec `_. > + The hw limitation is the same as other X710/XXV710 NICs. > + > +**Implication**: > + When bind uio_pci_generic, the uio_pci_generic probe device and check the Interrupt > + Status bit related feature of NICs , since it is not supported by X710/XL710/XXV710, > + so it return failed. > + > +**Resolution/Workaround**: > + Do not bind to use uio_pci_generic in X710/XL710/XXV710 NICs. > + > +**Affected Environment/Platform**: > + All. > + > +**Driver/Module**: > + Poll Mode Driver (PMD). >