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From: Johannes Berg <johannes@sipsolutions.net>
To: Michal Kazior <michal.kazior@tieto.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
	linux-wireless <linux-wireless@vger.kernel.org>,
	Network Development <netdev@vger.kernel.org>,
	eyalpe@dev.mellanox.co.il
Subject: Re: Throughput regression with `tcp: refine TSO autosizing`
Date: Wed, 04 Feb 2015 13:55:20 +0100	[thread overview]
Message-ID: <1423054520.4741.2.camel@sipsolutions.net> (raw)
In-Reply-To: <CA+BoTQ=qmCZz4CmSOvCOzMLowrDEG12XBffkTcYxjGqVD9604g@mail.gmail.com> (sfid-20150204_135320_650134_35405608)

On Wed, 2015-02-04 at 13:53 +0100, Michal Kazior wrote:

> The hardware itself seems to be capable. The firmware is a problem
> though. I'm also not sure if mac80211 can handle this as is. No 802.11
> driver seems to support SG except wil6210 which uses cfg80211 and
> netdevs directly.

mac80211 cannot deal with this right now. This would make a good topic
for the workshop since there's interest elsewhere in this as well. It's
probably not terribly hard to do as far as mac80211 is concerned.

How much offload do you really have though? Sometimes people just want
to build A-MSDUs.

johannes


  reply	other threads:[~2015-02-04 12:55 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-29 11:48 Throughput regression with `tcp: refine TSO autosizing` Michal Kazior
2015-01-29 13:14 ` Eric Dumazet
2015-01-30 10:29   ` Arend van Spriel
2015-01-30 13:19     ` Eric Dumazet
2015-01-30 13:47       ` Arend van Spriel
2015-01-30 14:37         ` Eric Dumazet
     [not found]         ` <CAA93jw5fqhz0Hiw74L2GXgtZ9JsMg+NtYydKxKzGDrvQcZn4hA@mail.gmail.com>
     [not found]           ` <CAA93jw7b0E9jjQYXrEPzjLLC9j8xNC0TFYXpWVtgFameJaNBdw@mail.gmail.com>
     [not found]             ` <1422741065.199624134@apps.rackspace.com>
     [not found]               ` <CAPp0ZBb2nkA6Y0s=W0kw=zvyn0wi0NMBRsBCw_xcD61ScOmgQg@mail.gmail.com>
     [not found]                 ` <CAA_e5Z46Bu+zZZFzf_ejzA35Gw3g1_OG85yv6yd7MpbwZcE-nw@mail.gmail.com>
     [not found]                   ` <CAA93jw7=oTex0Mp-0ThvuDRUnfR0N8tzdOQ8DD7QYWphp1b=4w@mail.gmail.com>
     [not found]                     ` <CAJq5cE3ETbpEtecFHmhgHQveNRUhVfrzjTOygHm-TRCTwHNyKA@mail.gmail.com>
     [not found]                       ` <1422801814.796219699@apps.rackspace.com>
     [not found]                         ` <CAA_e5Z5PfimZeC5cqSk_xFpKOBeZ74htLeEdwtKieAYWJaEX+A@mail.gmail.com>
2015-02-02  4:04                           ` [Cerowrt-devel] Fwd: " Avery Pennarun
2015-02-02 15:25                             ` Jim Gettys
2015-02-02  4:21                         ` Avery Pennarun
2015-02-02  7:07                           ` David Lang
2015-01-30 13:39   ` Michal Kazior
2015-01-30 14:40     ` Eric Dumazet
2015-02-02 10:27       ` Michal Kazior
2015-02-02 18:52         ` Eric Dumazet
2015-02-02 21:25           ` Ben Greear
2015-02-02 23:06             ` Eric Dumazet
2015-02-03  9:00               ` Michal Kazior
2015-02-03  1:18           ` Eric Dumazet
2015-02-03 11:50             ` Michal Kazior
2015-02-03 14:27               ` Eric Dumazet
2015-02-03 15:03                 ` Eric Dumazet
2015-02-04 11:35                 ` Michal Kazior
2015-02-04 11:57                   ` Eric Dumazet
2015-02-04 12:22                     ` Michal Kazior
2015-02-04 12:38                       ` Eric Dumazet
2015-02-04 12:53                         ` Michal Kazior
2015-02-04 12:55                           ` Johannes Berg [this message]
2015-02-04 13:16                           ` Eric Dumazet
2015-02-04 13:29                             ` Eric Dumazet
2015-02-04 21:11                               ` Eric Dumazet
2015-02-05  6:46                                 ` Michal Kazior
2015-02-05 13:03                                   ` Eric Dumazet
2015-02-05  8:38                                 ` Michal Kazior
2015-02-05 12:57                                   ` Eric Dumazet
2015-02-05 13:19                                     ` Eric Dumazet
2015-02-05 13:33                                       ` Eric Dumazet
2015-02-05 13:44                                       ` Michal Kazior
2015-02-05 14:41                                         ` Eric Dumazet
2015-02-05 17:10                                           ` Eric Dumazet
2015-02-06  9:42                                             ` Michal Kazior
2015-02-06 13:40                                               ` Eric Dumazet
2015-02-06 13:53                                                 ` Eric Dumazet
2015-02-06 14:09                                                   ` Michal Kazior
2015-02-09 13:47                                                     ` Michal Kazior
2015-02-09 15:11                                                       ` Eric Dumazet
2015-02-10 10:33                                                         ` Michal Kazior
2015-02-10 12:54                                                           ` Eric Dumazet
2015-02-10 13:05                                                             ` Eric Dumazet
2015-02-10 13:14                                                           ` Eric Dumazet
2015-02-11  8:33                                                             ` Michal Kazior
2015-02-11 13:17                                                               ` Eric Dumazet
2015-02-12  7:16                                                                 ` Michal Kazior
2015-02-10 14:19                                                           ` Johannes Berg
2015-02-10 15:09                                                             ` Eric Dumazet
2015-02-11  8:57                                                             ` Michal Kazior
2015-02-12  7:48                                                               ` Michal Kazior
2015-02-12  8:33                                                                 ` Dave Taht
2015-02-24 10:24                                                                 ` Johannes Berg
2015-02-24 10:30                                                                   ` Johannes Berg
2015-02-24 10:59                                                                     ` Johannes Berg
2015-03-31 11:08                                                         ` Johannes Berg
2015-02-06 14:10                                                   ` Eric Dumazet
2015-02-06 14:31                                                     ` David Laight
2015-02-06 15:02                                                       ` Eric Dumazet
2015-02-06 14:08                                                 ` Michal Kazior
2015-02-06 14:35                                                   ` Eric Dumazet
2015-02-06 17:48                                                     ` Rick Jones
2015-02-05 14:48                                         ` Eric Dumazet
2015-02-06  9:39                                           ` Nicolas Cavallari
2015-02-05 19:50                                         ` Dave Taht
2015-02-06  9:57                                           ` Michal Kazior
2015-02-03  8:44           ` Michal Kazior

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