From: Olivier MATZ <olivier.matz@6wind.com> To: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>, "Liu, Jijiang" <jijiang.liu@intel.com> Cc: "dev@dpdk.org" <dev@dpdk.org> Subject: Re: [dpdk-dev] [PATCH v3 0/3] enhance TX checksum command and csum forwarding engine Date: Wed, 21 Jan 2015 18:13:06 +0100 Message-ID: <54BFDE22.9050300@6wind.com> (raw) In-Reply-To: <2601191342CEEE43887BDE71AB977258213DEA1E@irsmsx105.ger.corp.intel.com> Hi Konstantin, On 01/21/2015 05:28 PM, Ananyev, Konstantin wrote: >> I added the support of Ether over GRE, IP over GRE and IP over IP >> tunnels in csumonly to do the test. I ask the csum forward engine >> to calculate inner IP+TCP checksums, and outer IP (case 6 in [1]). >> Here are the results: >> >> 1/ When I use I40E_TXD_CTX_UDP_TUNNELING: >> - vxlan: all checksums ok >> - eth over gre: all checksums ok >> - ip over gre: not transmitted by hw >> - ip over ip: all checksums wrong (set to 0 by hw) >> >> 2/ When I use I40E_TXD_CTX_GRE_TUNNELING: >> - vxlan: checksums ok >> - eth over gre: all checksums ok >> - ip over gre: all checksums ok >> - ip over ip: all checksums wrong (set to 0 by hw) >> >> 3/ When I use 00b: >> - vxlan: all checksums ok >> - eth over gre: all checksums ok >> - ip over gre: all checksums ok >> - ip over ip: checksums wrong (set to 0 by hw) > > Wow, so there is absolutely no difference in results for L4TUNT=2(GRE) and L4TUNT=0, right? > And IP over IP doesn't work at all? Right. I probably missed something in i40e driver. The application seems to fill the mbuf properly. > I suppose you set L4TUNLEN as described in spec for each case, right? I think so. > That looks really weird to me and as I can see completely contradicts with what spec. > I suppose we'll need to reproduce all that tests on our HW too. > Could you send to us a patch with your changes, so we can try same thing? > Or just a dump of TDD and TCD values for each case. Sure, I'm going to send all my code and tests in a RFC patchset in a few minutes. By the way, I'm off tomorrow, I won't be able to answer. Regards, Olivier
next prev parent reply other threads:[~2015-01-21 17:13 UTC|newest] Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-12-10 1:03 Jijiang Liu 2014-12-10 1:03 ` [dpdk-dev] [PATCH v3 1/3] librte_ether:add outer IP offload capability flag Jijiang Liu 2014-12-11 10:33 ` Olivier MATZ 2014-12-10 1:03 ` [dpdk-dev] [PATCH v3 2/3] i40e:support outer IPv4 checksum capability Jijiang Liu 2014-12-11 10:34 ` Olivier MATZ 2014-12-10 1:03 ` [dpdk-dev] [PATCH v3 3/3] app/testpmd:change tx_checksum command and csum forwarding engine Jijiang Liu 2014-12-11 10:52 ` Olivier MATZ 2014-12-12 4:06 ` Liu, Jijiang 2014-12-11 10:17 ` [dpdk-dev] [PATCH v3 0/3] enhance TX checksum " Olivier MATZ 2014-12-12 3:48 ` Liu, Jijiang 2014-12-12 16:33 ` Olivier MATZ 2015-01-07 2:03 ` Liu, Jijiang 2015-01-07 9:59 ` Ananyev, Konstantin 2015-01-07 11:39 ` Liu, Jijiang 2015-01-07 12:07 ` Ananyev, Konstantin 2015-01-08 8:51 ` Liu, Jijiang 2015-01-08 10:54 ` Ananyev, Konstantin 2015-01-09 10:45 ` Olivier MATZ 2015-01-12 3:41 ` Liu, Jijiang 2015-01-12 11:43 ` Olivier MATZ 2015-01-13 3:04 ` Liu, Jijiang 2015-01-13 9:55 ` Olivier MATZ 2015-01-14 3:01 ` Liu, Jijiang 2015-01-15 13:31 ` Ananyev, Konstantin 2015-01-16 17:27 ` Olivier MATZ 2015-01-19 13:04 ` Ananyev, Konstantin 2015-01-19 14:38 ` Olivier MATZ 2015-01-20 1:12 ` Ananyev, Konstantin 2015-01-20 12:39 ` Olivier MATZ 2015-01-20 15:18 ` Thomas Monjalon 2015-01-20 17:10 ` Stephen Hemminger 2015-01-20 17:23 ` Ananyev, Konstantin 2015-01-20 18:15 ` Olivier MATZ 2015-01-21 3:12 ` Liu, Jijiang 2015-01-21 15:25 ` Olivier MATZ 2015-01-21 16:28 ` Ananyev, Konstantin 2015-01-21 17:13 ` Olivier MATZ [this message] 2015-01-26 4:13 ` Ananyev, Konstantin 2015-01-26 6:02 ` Liu, Jijiang 2015-01-26 14:07 ` Olivier MATZ 2015-01-26 14:15 ` Ananyev, Konstantin 2015-01-27 8:34 ` Olivier MATZ 2015-01-27 15:26 ` Ananyev, Konstantin 2015-01-21 19:44 ` Stephen Hemminger 2015-01-22 1:40 ` Liu, Jijiang 2015-01-21 8:01 ` Liu, Jijiang 2015-01-21 9:10 ` Olivier MATZ 2015-01-21 11:52 ` Ananyev, Konstantin 2015-01-07 13:06 ` Qiu, Michael
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