Date: Wed, 20 Apr 2016 09:12:58 -0500 From: Dustin Marquess <dmarquess@gmail.com> To: "K. Macy" <kmacy@freebsd.org> Cc: "Eggert, Lars" <lars@netapp.com>, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: Issues with ixl(4) Message-ID: <CAJpsHY4UQZ%2BLS3C_17b%2B-QJq7ah%2BnuNBKhqyVs6zR0Yq5qxfuw@mail.gmail.com> In-Reply-To: <CAHM0Q_OMaRVoDZfufyrbMK0GwrG=ZPNYPScLG7YrRvkWfFwRYA@mail.gmail.com> References: <CAJpsHY4e_ycce3AGMXw93Z4Pbbgsg2yZk65q3vO9KTscSL3MaA@mail.gmail.com> <2C78DBCF-26F2-44D0-A45E-6EE8918648EA@netapp.com> <CAHM0Q_OMaRVoDZfufyrbMK0GwrG=ZPNYPScLG7YrRvkWfFwRYA@mail.gmail.com>
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I tried backing out that change and everything worked for a few minutes and then started acting up again. Then I notice Sean Bruno's "TCP Packets Drop!!!" email about LACP. I disabled LACP on the switch side and then changed the lagg config from "lacp" to "roundrobin", and so far so good. On the switch side it looks like member ports were randomly bounding in the LACP bundle, and when I'd tcpdump an interface I wouldn't see anything until another LACP&LLDP packet came in. So something seems to be broken with lagg's LACP support recently. The good news is I don't think the route caching is causing this problem. I'll put it back in and retest to make sure though. Thanks for the help! -Dustin On Tue, Apr 19, 2016 at 6:15 PM, K. Macy <kmacy@freebsd.org> wrote: > On Mon, Apr 18, 2016 at 10:45 PM, Eggert, Lars <lars@netapp.com> wrote: > > I haven't played with lagg+vlan+bridge, but I briefly evaluated XL710 > boards last year ( > https://lists.freebsd.org/pipermail/freebsd-net/2015-October/043584.html) > and saw very poor throughputs and latencies even in very simple setups. As > far as I could figure it out, TSO/LRO wasn't being performed (although > enabled) and so I ran into packet-rate issues. > > > > I basically gave up and went with a different vendor. FWIW, the XL710 > boards in the same machines booted into Linux performed fine. > > > > FWIW, NFLX sees performance close to that of cxgbe (by far the best > maintained, best performing FreeBSD 40G driver) with an iflib > converted driver. The iflib updated driver will be imported by 11 but > won't become the default driver until 11.1 for wont of QA resources at > Intel. > > -M >
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