On 12/26/2014 10:53 AM, Jason Wang wrote: > This patch try to reduce the number of MSIX irqs required for > virtio-net by sharing a MSIX irq for each TX/RX queue pair through > channels. If transport support channel, about half of the MSIX irqs > were reduced. > > Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx> > Cc: Michael S. Tsirkin <mst@xxxxxxxxxx> > Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx> > --- > drivers/net/virtio_net.c | 26 +++++++++++++++++++++++++- > 1 file changed, 25 insertions(+), 1 deletion(-) > Note: an issue with this patch is it may trigger tx irq handler if at least one more used. We could solve this by checking the used idx and bypass the tx irq if host does not signal us. (Or just does the old tx skbs reclaiming before the checking.) _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
