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| author |   Christoph Hellwig <hch@lst.de> | 2017-02-05 18:15:22 +0100 |
|---|---|---|
| committer |   Michael S. Tsirkin <mst@redhat.com> | 2017-02-27 20:54:04 +0200 |
| commit | fb5e31d970ce8b4941f03ed765d7dbefc39f22d9 (patch) | |
| tree | f7b64532549f35aad0933fae46346e59151d3a71 /scripts/cleanpatch | |
| parent | virtio_pci: simplify MSI-X setup (diff) | |
| download | linux-dev-fb5e31d970ce8b4941f03ed765d7dbefc39f22d9.tar.xz linux-dev-fb5e31d970ce8b4941f03ed765d7dbefc39f22d9.zip | |
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 <hch@lst.de>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'scripts/cleanpatch')
0 files changed, 0 insertions, 0 deletions