[dpdk-dev] [PATCH v3] virtio: split virtio rx/tx queue
yuanhan.liu at linux.intel.com
Thu Jun 2 08:43:04 CEST 2016
On Thu, Jun 02, 2016 at 06:38:49AM +0000, Xie, Huawei wrote:
> On 6/1/2016 3:13 PM, Yuanhan Liu wrote:
> > On Mon, May 30, 2016 at 05:06:20PM +0800, Huawei Xie wrote:
> >> We keep a common vq structure, containing only vq related fields,
> >> and then split others into RX, TX and control queue respectively.
> >> Signed-off-by: Huawei Xie <huawei.xie at intel.com>
> >> ---
> >> v2:
> >> - don't split virtio_dev_rx/tx_queue_setup
> >> v3:
> >> - fix some 80 char warnings
> >> - fix other newer version checkpatch warnings
> >> - remove '\n' in PMD_RX_LOG
> > Weird, I still saw them.
> Maybe missed this.
> > Besides that, I found a crash issue with this patch applied. You could
> > easily reproduce it by:
> > testpmd> start tx_first
> > testpmd> quit
> > [82774.055297] testpmd: segfault at 94 ip 00000000004f7ef0 sp 00007ffcb1fa
> > 66c0 error 4 in testpmd[400000+25b000]
> > ./t.pmd: line 11: 9661 Segmentation fault (core dumped) $RTE_SDK/$RTE
> > _TARGET/app/testpmd -c 0x1f -n 4 -- --nb-cores=4 -i --disable-hw-vlan --txqflags
> > 0xf00 --rxq=$nr_queues --txq=$nr_queues --rxd=256 --txd=256
> > --yliu
> Couldn't reproduce. Seems like resource free issue. Do you test with
> multiple queues?
Nope, nr_queues is 1 by default.
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