Date: Thu, 30 Mar 2017 16:11:58 -0700 From: hiren panchasara <hiren@strugglingcoder.info> To: "Somayajulu, David" <David.Somayajulu@cavium.com> Cc: David C Somayajulu <davidcs@FreeBSD.org>, "src-committers@freebsd.org" <src-committers@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "svn-src-head@freebsd.org" <svn-src-head@freebsd.org> Subject: Re: svn commit: r316309 - head/sys/dev/qlxgbe Message-ID: <20170330231158.GI1016@strugglingcoder.info> In-Reply-To: <BY2PR07MB14744C383EA86B3EA1F3927CEE340@BY2PR07MB1474.namprd07.prod.outlook.com> References: <201703302243.v2UMhX2s011405@repo.freebsd.org> <20170330230227.GH1016@strugglingcoder.info> <BY2PR07MB14744C383EA86B3EA1F3927CEE340@BY2PR07MB1474.namprd07.prod.outlook.com>
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--ljn2+zwPkKedfiv/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 03/30/17 at 11:07P, Somayajulu, David wrote: > Hi Hiren, > > I know this is not a new topic but a little more descriptive commit-log= would have been nicer. Also, you should update the manpage reflecting this= change. i.e. now it also supports software LRO when h/w LRO is disabled. > Will do. Sorry about that. Thanks! >=20 > > Do you know of a case where one would want to disable h/w lro and enabl= e s/w lro? I guess where you want to free up nic and make cpu do more work? > I was under the impression as well, that s/w lro is moot, if h/w lro was = available, till one costumer asked for it. Not sure what the use case is. I thought this idea (like gro in linux) was popular when lro in h/w was considered buggy and couldn't correctly do batching (i.e. hide useful flags). Not sure if that's still the case. cheers, Hiren --ljn2+zwPkKedfiv/ Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQF8BAABCgBmBQJY3ZC+XxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRBNEUyMEZBMUQ4Nzg4RjNGMTdFNjZGMDI4 QjkyNTBFMTU2M0VERkU1AAoJEIuSUOFWPt/lCgQH/jfRoG25lozt00G2gitCANGU BA99S8nGiUq2VvmPnTDgs5tagyCn4XU3vpj8kXklUFXEZIByE/+t1QcwTsmYktHe MJd/bRDMj4FaLi5G+4bI02T1GsbiyI+XzKDXYL5MvLD508LBcScMh9MBIjWyAV4i EF9YrXIQc7EvQu2s5UjJb2zEjz8J6NOrUOBIRkzB54Xfczgz+7I7BcjU+hcAIquM Bbj2b7Yf/njm50NgyB/VOXDYiJ7uagscohkbl2YkQ6mzqLrtFPm0VekFtWfUlOW2 PsTNMgiN5DzUrq8ZeqdgU4nJS3BZcwOu7a05ykqZyq3lCBneT93xiN2NbDDzmws= =bbC6 -----END PGP SIGNATURE----- --ljn2+zwPkKedfiv/--
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