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From: Julio Faracco <jcfaracco at gmail.com> Driver virtio_net is not handling error events for TX provided by dev_watchdog. This event is reached when transmission queue is having problems to transmit packets. To enable it, driver should have .ndo_tx_timeout implemented. This serie has two commits: In the...

From: Julio Faracco <jcfaracco at gmail.com> Driver virtio_net is not handling error events for TX provided by dev_watchdog. This event is reached when transmission queue is having problems to transmit packets. To enable it, driver should have .ndo_tx_timeout implemented. This serie has two commits: In the...

Hi Daniel, I changed the libvirt code to support "-net dump" because it is more comfortable to me and to users here. I don't know if it is interesting to the community, but... most of the code is ready if someone needs. Julio Cesar Faracco 2016-05-05 10:34 GMT-03:00 Daniel P. Berrange <berrange@redhat.com>: > On Wed, May 04, 2016 at 12:37:14PM -0300, Julio Faracco wrote: >> Hi guys, >> >> Does anybody know how to dump the network trafic from each virtual >> machine using libvirt? >> >> He...

On Sun, Oct 06, 2019 at 03:45:15PM -0300, jcfaracco at gmail.com wrote: > From: Julio Faracco <jcfaracco at gmail.com> > > To enable dev_watchdog, virtio_net should have a tx_timeout defined > (.ndo_tx_timeout). This is only a skeleton to throw a warn message. It > notifies the event in some specific queue of device. This fun...

On Sun, Oct 06, 2019 at 03:45:15PM -0300, jcfaracco at gmail.com wrote: > From: Julio Faracco <jcfaracco at gmail.com> > > To enable dev_watchdog, virtio_net should have a tx_timeout defined > (.ndo_tx_timeout). This is only a skeleton to throw a warn message. It > notifies the event in some specific queue of device. This fun...

2015-06-24 3:10 GMT-03:00 Michael S. Tsirkin <mst at redhat.com>: > > On Tue, Jun 23, 2015 at 10:44:29PM -0300, Julio Faracco wrote: > > virtio_net paravirtualized driver does not have a tx_timeout() function to > > guarantee that the driver will recover properly after receiving a timeout > > during a transmission of a packet. This patch add this feature and throw a > > timeout exception after 5 HZ...

2015-06-24 3:10 GMT-03:00 Michael S. Tsirkin <mst at redhat.com>: > > On Tue, Jun 23, 2015 at 10:44:29PM -0300, Julio Faracco wrote: > > virtio_net paravirtualized driver does not have a tx_timeout() function to > > guarantee that the driver will recover properly after receiving a timeout > > during a transmission of a packet. This patch add this feature and throw a > > timeout exception after 5 HZ...

...Sometimes, this applications does not work properly, so we need to dump the network traffic of each Virtual Machine to compare and debug. How can I enable it using libvirt? I know that if you use a QEMU instance, you can enable the dump using "-netdev dump,...". Thanks! :-) Julio Cesar Faracco

> On Wed, Jun 24, 2015 at 10:31:09PM -0300, Julio Faracco wrote: > > 2015-06-24 3:10 GMT-03:00 Michael S. Tsirkin <mst at redhat.com>: > > > > > > On Tue, Jun 23, 2015 at 10:44:29PM -0300, Julio Faracco wrote: > > > > virtio_net paravirtualized driver does not have a tx_timeout() function > > > > to &g...

> On Wed, Jun 24, 2015 at 10:31:09PM -0300, Julio Faracco wrote: > > 2015-06-24 3:10 GMT-03:00 Michael S. Tsirkin <mst at redhat.com>: > > > > > > On Tue, Jun 23, 2015 at 10:44:29PM -0300, Julio Faracco wrote: > > > > virtio_net paravirtualized driver does not have a tx_timeout() function > > > > to &g...

...oes not have a tx_timeout() function to guarantee that the driver will recover properly after receiving a timeout during a transmission of a packet. This patch add this feature and throw a timeout exception after 5 HZ. Considering some tests, this is the best time to use here. Signed-off-by: Julio Faracco <jcfaracco at gmail.com> Cc: Jason Wang <jasowang at redhat.com> --- drivers/net/virtio_net.c | 69 +++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 68 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 63c7810..75ac45c...

...oes not have a tx_timeout() function to guarantee that the driver will recover properly after receiving a timeout during a transmission of a packet. This patch add this feature and throw a timeout exception after 5 HZ. Considering some tests, this is the best time to use here. Signed-off-by: Julio Faracco <jcfaracco at gmail.com> Cc: Jason Wang <jasowang at redhat.com> --- drivers/net/virtio_net.c | 69 +++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 68 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 63c7810..75ac45c...

On Wed, Jun 24, 2015 at 10:31:09PM -0300, Julio Faracco wrote: > 2015-06-24 3:10 GMT-03:00 Michael S. Tsirkin <mst at redhat.com>: > > > > On Tue, Jun 23, 2015 at 10:44:29PM -0300, Julio Faracco wrote: > > > virtio_net paravirtualized driver does not have a tx_timeout() function to > > > guarantee that the driver w...

On 06/25/2015 09:31 AM, Julio Faracco wrote: > 2015-06-24 3:10 GMT-03:00 Michael S. Tsirkin <mst at redhat.com>: >> On Tue, Jun 23, 2015 at 10:44:29PM -0300, Julio Faracco wrote: >>> virtio_net paravirtualized driver does not have a tx_timeout() function to >>> guarantee that the driver will recover pro...

From: Julio Faracco <jcfaracco at gmail.com> To enable dev_watchdog, virtio_net should have a tx_timeout defined (.ndo_tx_timeout). This is only a skeleton to throw a warn message. It notifies the event in some specific queue of device. This function still counts tx_timeout statistic and consider this event...

On Sun, Oct 06, 2019 at 03:45:13PM -0300, jcfaracco at gmail.com wrote: > From: Julio Faracco <jcfaracco at gmail.com> > > Driver virtio_net is not handling error events for TX provided by > dev_watchdog. This event is reached when transmission queue is having > problems to transmit packets. To enable it, driver should have...

Em seg, 7 de out de 2019 ?s 11:15, Julian Wiedmann <jwi at linux.ibm.com> escreveu: > > On 06.10.19 20:45, jcfaracco at gmail.com wrote: > > From: Julio Faracco <jcfaracco at gmail.com> > > > > For debug purpose of TX timeout events, a tx_timeout entry was added to > > monitor this special case: when dev_watchdog identifies a tx_timeout and > > throw an exception. We can both c...

Em seg, 7 de out de 2019 ?s 04:51, Michael S. Tsirkin <mst at redhat.com> escreveu: > > On Sun, Oct 06, 2019 at 03:45:15PM -0300, jcfaracco at gmail.com wrote: > > From: Julio Faracco <jcfaracco at gmail.com> > > > > To enable dev_watchdog, virtio_net should have a tx_timeout defined > > (.ndo_tx_timeout). This is only a skeleton to throw a warn message. It > > notifies the event in some specific que...

...mented. This commit brings back virtnet_reset method to recover TX queues from a error state. That function is called by schedule_work method and it puts the reset function into work queue. As the error cause is unknown at this moment, it would be better to reset all queues. Signed-off-by: Julio Faracco <jcfaracco at gmail.com> Signed-off-by: Daiane Mendes <dnmendes76 at gmail.com> Cc: Jason Wang <jasowang at redhat.com> --- v1-v2: Tag `net-next` was included to indentify where patch would be applied. --- drivers/net/virtio_net.c | 95 +++++++++++++++++++++++++++++++++++++++- 1...

...mented. This commit brings back virtnet_reset method to recover TX queues from a error state. That function is called by schedule_work method and it puts the reset function into work queue. As the error cause is unknown at this moment, it would be better to reset all queues. Signed-off-by: Julio Faracco <jcfaracco at gmail.com> Signed-off-by: Daiane Mendes <dnmendes76 at gmail.com> Cc: Jason Wang <jasowang at redhat.com> --- v1-v2: Tag `net-next` was included to indentify where patch would be applied. --- drivers/net/virtio_net.c | 95 +++++++++++++++++++++++++++++++++++++++- 1...