Re: ixgbe(4) and "Could not setup receive structures"

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 mb=
ufs
> 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.
>
> Jack
>
>
> On Thu, Apr 14, 2011 at 6:05 AM, Leon Me=DFner
> <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.ht=
ml
>>
>> # cat ~/patches/ixgbe.num_queues_to_4.patch
>> --- /root/.vimbackup/ixgbe.c~ =A0 2011-04-12 22:14:27.000000000 +0000
>> +++ sys/dev/ixgbe/ixgbe.c =A0 =A0 =A0 2011-04-12 22:14:27.000000000 +000=
0
>> @@ -273,7 +273,7 @@ TUNABLE_INT("hw.ixgbe.hdr_split", &ixgbe
>> =A0* number of cpus. Each queue is a pair
>> =A0 =A0* of RX and TX rings with a msix vector
>> =A0 =A0 =A0*/
>> =A0 =A0 =A0-static int ixgbe_num_queues =3D 0;
>> =A0 =A0 =A0+static int ixgbe_num_queues =3D 4;
>> =A0 =A0 =A0 TUNABLE_INT("hw.ixgbe.num_queues", &ixgbe_num_queues);
>>
>> =A0 =A0 =A0 =A0 /*
>>
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