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virtio: fixes, cleanups, performance

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A bunch of changes to virtio, most affecting virtio net.
 ptr_ring batched zeroing - first of batching enhancements
 that seems ready.
 
 Signed-off-by: Michael S. Tsirkin <[email protected]>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:
 "Fixes, cleanups, performance

  A bunch of changes to virtio, most affecting virtio net. Also ptr_ring
  batched zeroing - first of batching enhancements that seems ready."

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  s390/virtio: change maintainership
  tools/virtio: fix spelling mistake: "wakeus" -> "wakeups"
  virtio_net: tidy a couple debug statements
  ptr_ring: support testing different batching sizes
  ringtest: support test specific parameters
  ptr_ring: batch ring zeroing
  virtio: virtio_driver doc
  virtio_net: don't reset twice on XDP on/off
  virtio_net: fix support for small rings
  virtio_net: reduce alignment for buffers
  virtio_net: rework mergeable buffer handling
  virtio_net: allow specifying context for rx
  virtio: allow extra context per descriptor
  tools/virtio: fix build breakage
  virtio: add context flag to find vqs
  virtio: wrap find_vqs
  ringtest: fix an assert statement
This commit is contained in:
Linus Torvalds 2017-05-10 11:33:08 -07:00
commit c44b594303
32 changed files with 330 additions and 146 deletions
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3
drivers/gpu/drm/virtio/virtgpu_kms.c
View file

@ -175,8 +175,7 @@ int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags)
DRM_INFO("virgl 3d acceleration not supported by guest\n");
#endif
ret = vgdev->vdev->config->find_vqs(vgdev->vdev, 2, vqs,
callbacks, names, NULL);
ret = virtio_find_vqs(vgdev->vdev, 2, vqs, callbacks, names, NULL);
if (ret) {
DRM_ERROR("failed to find virt queues\n");
goto err_vqs;