From fb5e31d970ce8b4941f03ed765d7dbefc39f22d9 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 5 Feb 2017 18:15:22 +0100 Subject: virtio: allow drivers to request IRQ affinity when creating VQs Add a struct irq_affinity pointer to the find_vqs methods, which if set is used to tell the PCI layer to create the MSI-X vectors for our I/O virtqueues with the proper affinity from the start. Compared to after the fact affinity hints this gives us an instantly working setup and allows to allocate the irq descritors node-local and avoid interconnect traffic. Last but not least this will allow blk-mq queues are created based on the interrupt affinity for storage drivers. Signed-off-by: Christoph Hellwig Reviewed-by: Jason Wang Signed-off-by: Michael S. Tsirkin --- drivers/net/caif/caif_virtio.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/net/caif') diff --git a/drivers/net/caif/caif_virtio.c b/drivers/net/caif/caif_virtio.c index b306210b02b7..bc0eb47eccee 100644 --- a/drivers/net/caif/caif_virtio.c +++ b/drivers/net/caif/caif_virtio.c @@ -679,7 +679,8 @@ static int cfv_probe(struct virtio_device *vdev) goto err; /* Get the TX virtio ring. This is a "guest side vring". */ - err = vdev->config->find_vqs(vdev, 1, &cfv->vq_tx, &vq_cbs, &names); + err = vdev->config->find_vqs(vdev, 1, &cfv->vq_tx, &vq_cbs, &names, + NULL); if (err) goto err; -- cgit v1.2.3