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| author |   Michael S. Tsirkin <mst@redhat.com> | 2017-03-06 18:32:29 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-05-02 23:41:43 +0300 |
| commit | f94682dde5ed23eed13533a37dfce942e60ade4e (patch) | |
| tree | aaa611dd8164523a1d4029b2eece720595c87669 /include/linux/virtio_config.h | |
| parent | virtio: wrap find_vqs (diff) | |
| download | linux-dev-f94682dde5ed23eed13533a37dfce942e60ade4e.tar.xz linux-dev-f94682dde5ed23eed13533a37dfce942e60ade4e.zip | |
virtio: add context flag to find vqs
Allows maintaining extra context per vq. For ease of use, passing in
NULL is legal and disables the feature for all vqs.
Includes fixes by Christian for s390, acked by Cornelia.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/linux/virtio_config.h')
| -rw-r--r-- | include/linux/virtio_config.h | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index 47f3d805c290..0133d8a12ccd 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -72,7 +72,8 @@ struct virtio_config_ops { void (*reset)(struct virtio_device *vdev); int (*find_vqs)(struct virtio_device *, unsigned nvqs, struct virtqueue *vqs[], vq_callback_t *callbacks[], - const char * const names[], struct irq_affinity *desc); + const char * const names[], const bool *ctx, + struct irq_affinity *desc); void (*del_vqs)(struct virtio_device *); u64 (*get_features)(struct virtio_device *vdev); int (*finalize_features)(struct virtio_device *vdev); @@ -173,7 +174,8 @@ struct virtqueue *virtio_find_single_vq(struct virtio_device *vdev, vq_callback_t *callbacks[] = { c }; const char *names[] = { n }; struct virtqueue *vq; - int err = vdev->config->find_vqs(vdev, 1, &vq, callbacks, names, NULL); + int err = vdev->config->find_vqs(vdev, 1, &vq, callbacks, names, NULL, + NULL); if (err < 0) return ERR_PTR(err); return vq; @@ -185,7 +187,17 @@ int virtio_find_vqs(struct virtio_device *vdev, unsigned nvqs, const char * const names[], struct irq_affinity *desc) { - return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, desc); + return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, NULL, desc); +} + +static inline +int virtio_find_vqs_ctx(struct virtio_device *vdev, unsigned nvqs, + struct virtqueue *vqs[], vq_callback_t *callbacks[], + const char * const names[], const bool *ctx, + struct irq_affinity *desc) +{ + return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, ctx, + desc); } /** |