From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from s3.sipsolutions.net ([5.9.151.49]:54389 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754208AbbBDMz0 (ORCPT ); Wed, 4 Feb 2015 07:55:26 -0500 Message-ID: <1423054520.4741.2.camel@sipsolutions.net> (sfid-20150204_135534_224162_DF59142C) Subject: Re: Throughput regression with `tcp: refine TSO autosizing` From: Johannes Berg To: Michal Kazior Cc: Eric Dumazet , linux-wireless , Network Development , eyalpe@dev.mellanox.co.il Date: Wed, 04 Feb 2015 13:55:20 +0100 In-Reply-To: (sfid-20150204_135320_650134_35405608) References: <1422537297.21689.15.camel@edumazet-glaptop2.roam.corp.google.com> <1422628835.21689.95.camel@edumazet-glaptop2.roam.corp.google.com> <1422903136.21689.114.camel@edumazet-glaptop2.roam.corp.google.com> <1422926330.21689.138.camel@edumazet-glaptop2.roam.corp.google.com> <1422973660.907.10.camel@edumazet-glaptop2.roam.corp.google.com> <1423051045.907.108.camel@edumazet-glaptop2.roam.corp.google.com> <1423053531.907.115.camel@edumazet-glaptop2.roam.corp.google.com> (sfid-20150204_135320_650134_35405608) Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: 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