Em seg, 7 de out de 2019 às 04:43, Michael S. Tsirkin <mst@xxxxxxxxxx> escreveu: > > On Sun, Oct 06, 2019 at 03:45:13PM -0300, jcfaracco@xxxxxxxxx wrote: > > From: Julio Faracco <jcfaracco@xxxxxxxxx> > > > > 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 past, we implemented a function to recover driver state when this > > kind of event happens, but the structure was to complex for virtio_net > > that moment. > > It's more that it was missing a bunch of locks. Actually, we submitted this patch as a RFC to understand the community perspective about this missing feature: Complexity versus performance versus solution. > > > Alternativelly, this skeleton should be enough for now. > > > > For further details, see thread: > > https://lkml.org/lkml/2015/6/23/691 > > > > Patch 1/2: > > Add statistic field for TX timeout events. > > > > Patch 2/2: > > Implement a skeleton function to debug TX timeout events. > > > > Julio Faracco (2): > > drivers: net: virtio_net: Add tx_timeout stats field > > drivers: net: virtio_net: Add tx_timeout function > > > > drivers/net/virtio_net.c | 33 ++++++++++++++++++++++++++++++++- > > 1 file changed, 32 insertions(+), 1 deletion(-) > > > > -- > > 2.21.0 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
