Date: Thu, 14 Apr 2011 21:44:48 +0200 From: Leon =?iso-8859-15?Q?Me=DFner?= <l.messner@physik.tu-berlin.de> To: "K. Macy" <kmacy@freebsd.org> Cc: Leon =?iso-8859-15?Q?Me=DFner?= <l.messner@physik.tu-berlin.de>, freebsd-stable@freebsd.org, Jack Vogel <jfvogel@gmail.com> Subject: Re: ixgbe(4) and "Could not setup receive structures" Message-ID: <20110414194448.GG9116@emmi.physik-pool.tu-berlin.de> In-Reply-To: <BANLkTinw8PcTZ4A3VQXKQs7=zZWL6bt8dA@mail.gmail.com> References: <20110414130540.GD9116@emmi.physik-pool.tu-berlin.de> <BANLkTikVVGPb3k74Xdty%2BH_tjjWD3SZ_Ng@mail.gmail.com> <BANLkTinw8PcTZ4A3VQXKQs7=zZWL6bt8dA@mail.gmail.com>
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On Thu, Apr 14, 2011 at 08:55:17PM +0200, K. Macy wrote: > That isn't guaranteed to work if he is KVA limited. > > On Thu, Apr 14, 2011 at 6:44 PM, Jack Vogel <jfvogel@gmail.com> wrote: > > If you get this message its only for one reason, you don't have enough mbufs > > to > > fill your rings. You must do one of two things, either reduce the number of > > queues, > > or increase the relevant mbuf pool. > > > > Increase the 9K mbuf cluster pool. I did set it to twice the default, and now it works and netstat -m shows: 8192/391/8583/12800 9k jumbo clusters in use (current/cache/total/max) Whats a reasonable amount to set kern.ipc.nmbjumbo9 to and is there any form of auto-tuning (i have absolutely no load on this machine and mbufs are higher than default pool size). Thanks to all, Leon > > On Thu, Apr 14, 2011 at 6:05 AM, Leon Meßner > > <l.messner@physik.tu-berlin.de>wrote: > > > >> Hi, > >> > >> i tried setting the mtu on one of my ixgbe(4) intel NICs to support > >> jumbo frames. This is on a box with RELENG_8 from today. > >> > >> # ifconfig ix0 mtu 9198 > >> > >> I then get the following error: > >> > >> # tail -n 1 /var/log/messages > >> Apr 14 12:48:43 siloneu kernel: ix0: Could not setup receive structures > >> > >> I already tried the following patch because of Jack Vogel's advice given > >> in the following thread on -stable in Oct. last year, which still > >> produces the same error message and leaves the box unpingable: > >> > >> http://lists.freebsd.org/pipermail/freebsd-stable/2010-October/059541.html > >> > >> # cat ~/patches/ixgbe.num_queues_to_4.patch > >> --- /root/.vimbackup/ixgbe.c~ 2011-04-12 22:14:27.000000000 +0000 > >> +++ sys/dev/ixgbe/ixgbe.c 2011-04-12 22:14:27.000000000 +0000 > >> @@ -273,7 +273,7 @@ TUNABLE_INT("hw.ixgbe.hdr_split", &ixgbe > >> * number of cpus. Each queue is a pair > >> * of RX and TX rings with a msix vector > >> */ > >> -static int ixgbe_num_queues = 0; > >> +static int ixgbe_num_queues = 4; > >> TUNABLE_INT("hw.ixgbe.num_queues", &ixgbe_num_queues); > >> > >> /* > >> > >> _______________________________________________ > >> freebsd-stable@freebsd.org mailing list > >> http://lists.freebsd.org/mailman/listinfo/freebsd-stable > >> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > >> > > _______________________________________________ > > freebsd-stable@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
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