When queue number shrinks to 1 from X, the following code stops us
sending the multiple queue ctrl message:
if (nb_queues > 1) {
if (virtio_set_multiple_queues(dev, nb_queues) != 0)
return -EINVAL;
}
This ends up with still X queues being en
>From the virtio spec of view, multiple-queue is always enabled/disabled
in queue pairs. DPDK somehow allows the case when Tx and Rx queue number
are different.
Currently, virtio PMD get the queue pair number from the nb_rx_queues
field, which could be an issue when Tx queue number > Rx queue numb
The "hw->started" field was introduced to stop touching queues
on restart. We never touches queues on restart any more, thus
it's safe to remove this flag.
Signed-off-by: Yuanhan Liu
Reviewed-by: Maxime Coquelin
---
drivers/net/virtio/virtio_ethdev.c | 15 ++-
drivers/net/virtio/vir
Invoking vtpci_reinit_complete() at port start stage doesn't make any
sense, instead, it should be done at the end of dev init stage.
So move it here.
Signed-off-by: Yuanhan Liu
Reviewed-by: Maxime Coquelin
---
drivers/net/virtio/virtio_ethdev.c | 3 +--
1 file changed, 1 insertion(+), 2 delet
The only piece of code of virtio_dev_rxtx_start() is actually doing
queue configure/setup work. So, move it to corresponding queue_setup
callback.
Once that is done, virtio_dev_rxtx_start() becomes an empty function,
thus it's being removed.
Signed-off-by: Yuanhan Liu
Reviewed-by: Maxime Coqueli
virtio_dev_vring_start() is actually doing the vring initiation job.
And the vring initiation job should be done at the dev init stage, as
stated with great details in former commit.
So move it there, and rename it to virtio_init_vring().
Signed-off-by: Yuanhan Liu
Reviewed-by: Maxime Coquelin
Queue allocation should be done once, since the queue related info (such
as vring addreess) will only be informed to the vhost-user backend once
without virtio device reset.
That means, if you allocate queues again after the vhost-user negotiation,
the vhost-user backend will not be informed any m
Let rxq/txq/cq be the union field of the virtqueue struct. This would
simplifies the vq allocation a bit: we don't need calculate the vq_size
any more based on the queue type.
Signed-off-by: Yuanhan Liu
Reviewed-by: Maxime Coquelin
---
drivers/net/virtio/virtio_ethdev.c | 18 +++---
Instead of setting up a queue memzone name like "port0_rxq0", "port0_txq0",
it could be simplified a bit to something like "port0_vq0", "port0_vq1" ...
Meanwhile, the code is also simplified a bit.
Signed-off-by: Yuanhan Liu
Reviewed-by: Maxime Coquelin
---
drivers/net/virtio/virtio_ethdev.c |
This reverts commit 9a0615af7746 ("virtio: fix restart"); conflict is
manually addressed.
Kyle reported an issue with above commit
qemu-kvm: Guest moved used index from 5 to 1
with following steps,
1) Start my virtio interfaces
2) Send some traffic into/out of the interfaces
3)
This patchset fixes few issues related to virtio queue reconfigure:
increase or shrink the queue number. The major issue and the reason
behind is described with length details in patch 4 "net/virtio: allocate
queue at init stage".
Those bugs can not be fixed by few lines of code, it's because the
checkpatch raise some false positives when run outside of the kernel tree.
The script checkpatch.pl from the kernel checks a list
of structs known to be const.
It is obviously not relevant as DPDK has not such list.
Signed-off-by: Thomas Monjalon
---
scripts/checkpatches.sh | 3 ++-
1 file chan
The Subject in an email can be split on two lines.
In such case, the second line (starting with a space) can be
joined to the first one.
It is handled differently when parsing stdin or a file.
Signed-off-by: Thomas Monjalon
---
scripts/checkpatches.sh | 7 +--
1 file changed, 5 insertions(+
2016-11-02 17:10, Thomas Monjalon:
> It is now possible to check a patch by providing an email
> through stdin.
> It is especially useful to automate checkpatch run when
> receiving an email.
>
> Signed-off-by: Thomas Monjalon
Applied
2016-11-02 17:10, Thomas Monjalon:
> The commit e13fbc065c7f ("scripts: improve quiet checkpatch")
> removed the line "total: 1 errors, 0 warnings, 7 lines checked"
> from the quiet report.
> Later, commit e7c38f471384 ("scripts: remove useless checkpatch notes")
> removed few lines before "total:.
2016-11-04 14:58, Yuanhan Liu:
> On Fri, Sep 30, 2016 at 04:18:42PM +0200, Thomas Monjalon wrote:
> > This script can help to find commits to backport in stable branches.
> >
> > Fixes are found if there is the word "fix" in the headline or
> > if there is a tag Fixes: or Reverts: in the message.
On Fri, Nov 04, 2016 at 08:30:00PM +, Kevin Traynor wrote:
> On 11/04/2016 03:21 PM, Kevin Traynor wrote:
> > On 11/03/2016 04:09 PM, Yuanhan Liu wrote:
> >> Queue allocation should be done once, since the queue related info (such
> >> as vring addreess) will only be informed to the vhost-user
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