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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-24 12:06:46 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-24 12:06:46 -0800 |
commit | 64145482d3339d71f58857591d021588040543f4 (patch) | |
tree | 73c3efadd308c546d9c56cde34235cdd006dda49 /drivers/vdpa/mlx5 | |
parent | 58cf05f597b03a8212d9ecf2c79ee046d3ee8ad9 (diff) | |
parent | 418eddef050d5f6393c303a94e3173847ab85466 (diff) | |
download | linux-64145482d3339d71f58857591d021588040543f4.tar.bz2 |
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin:
- vdpa sim refactoring
- virtio mem: Big Block Mode support
- misc cleanus, fixes
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (61 commits)
vdpa: Use simpler version of ida allocation
vdpa: Add missing comment for virtqueue count
uapi: virtio_ids: add missing device type IDs from OASIS spec
uapi: virtio_ids.h: consistent indentions
vhost scsi: fix error return code in vhost_scsi_set_endpoint()
virtio_ring: Fix two use after free bugs
virtio_net: Fix error code in probe()
virtio_ring: Cut and paste bugs in vring_create_virtqueue_packed()
tools/virtio: add barrier for aarch64
tools/virtio: add krealloc_array
tools/virtio: include asm/bug.h
vdpa/mlx5: Use write memory barrier after updating CQ index
vdpa: split vdpasim to core and net modules
vdpa_sim: split vdpasim_virtqueue's iov field in out_iov and in_iov
vdpa_sim: make vdpasim->buffer size configurable
vdpa_sim: use kvmalloc to allocate vdpasim->buffer
vdpa_sim: set vringh notify callback
vdpa_sim: add set_config callback in vdpasim_dev_attr
vdpa_sim: add get_config callback in vdpasim_dev_attr
vdpa_sim: make 'config' generic and usable for any device type
...
Diffstat (limited to 'drivers/vdpa/mlx5')
-rw-r--r-- | drivers/vdpa/mlx5/net/mlx5_vnet.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index f1d54814db97..88dde3455bfd 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -479,6 +479,11 @@ static int mlx5_vdpa_poll_one(struct mlx5_vdpa_cq *vcq) static void mlx5_vdpa_handle_completions(struct mlx5_vdpa_virtqueue *mvq, int num) { mlx5_cq_set_ci(&mvq->cq.mcq); + + /* make sure CQ cosumer update is visible to the hardware before updating + * RX doorbell record. + */ + dma_wmb(); rx_post(&mvq->vqqp, num); if (mvq->event_cb.callback) mvq->event_cb.callback(mvq->event_cb.private); |