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authorLinus Torvalds <torvalds@linux-foundation.org>2020-10-23 21:00:57 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-23 21:00:57 +0300
commit9313f8026328d0309d093f6774be4b8f5340c0e5 (patch)
treea9346e155bf891d60bed1e4f8013752a3c27b828 /drivers/vdpa
parent090a7d046fedaaaf41fcdd84ca11764fa5d35233 (diff)
parent88a0d60c6445f315fbcfff3db792021bb3a67b28 (diff)
downloadlinux-9313f8026328d0309d093f6774be4b8f5340c0e5.tar.xz
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin: "vhost, vdpa, and virtio cleanups and fixes A very quiet cycle, no new features" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: MAINTAINERS: add URL for virtio-mem vhost_vdpa: remove unnecessary spin_lock in vhost_vring_call vringh: fix __vringh_iov() when riov and wiov are different vdpa/mlx5: Setup driver only if VIRTIO_CONFIG_S_DRIVER_OK s390: virtio: PV needs VIRTIO I/O device protection virtio: let arch advertise guest's memory access restrictions vhost_vdpa: Fix duplicate included kernel.h vhost: reduce stack usage in log_used virtio-mem: Constify mem_id_table virtio_input: Constify id_table virtio-balloon: Constify id_table vdpa/mlx5: Fix failure to bring link up vdpa/mlx5: Make use of a specific 16 bit endianness API
Diffstat (limited to 'drivers/vdpa')
-rw-r--r--drivers/vdpa/mlx5/net/mlx5_vnet.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index 74264e590695..1fa6fcac8299 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -1522,6 +1522,11 @@ static inline bool mlx5_vdpa_is_little_endian(struct mlx5_vdpa_dev *mvdev)
(mvdev->actual_features & (1ULL << VIRTIO_F_VERSION_1));
}
+static __virtio16 cpu_to_mlx5vdpa16(struct mlx5_vdpa_dev *mvdev, u16 val)
+{
+ return __cpu_to_virtio16(mlx5_vdpa_is_little_endian(mvdev), val);
+}
+
static int mlx5_vdpa_set_features(struct vdpa_device *vdev, u64 features)
{
struct mlx5_vdpa_dev *mvdev = to_mvdev(vdev);
@@ -1535,8 +1540,8 @@ static int mlx5_vdpa_set_features(struct vdpa_device *vdev, u64 features)
return err;
ndev->mvdev.actual_features = features & ndev->mvdev.mlx_features;
- ndev->config.mtu = __cpu_to_virtio16(mlx5_vdpa_is_little_endian(mvdev),
- ndev->mtu);
+ ndev->config.mtu = cpu_to_mlx5vdpa16(mvdev, ndev->mtu);
+ ndev->config.status |= cpu_to_mlx5vdpa16(mvdev, VIRTIO_NET_S_LINK_UP);
return err;
}
@@ -1653,6 +1658,9 @@ static int mlx5_vdpa_change_map(struct mlx5_vdpa_net *ndev, struct vhost_iotlb *
if (err)
goto err_mr;
+ if (!(ndev->mvdev.status & VIRTIO_CONFIG_S_DRIVER_OK))
+ return 0;
+
restore_channels_info(ndev);
err = setup_driver(ndev);
if (err)