diff options
| author | Eli Cohen <elic@nvidia.com> | 2022-01-05 13:46:43 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-01-14 18:50:54 -0500 |
| commit | 79de65edf8891725616f4992cee5d5963900f07a (patch) | |
| tree | d106dac25e0a78dc95a090abf244f89b57eac8c3 /drivers/vdpa | |
| parent | cd2629f6df1cab5b3df34705ae7f3bde6147fce3 (diff) | |
| download | linux-79de65edf8891725616f4992cee5d5963900f07a.tar.bz2 | |
vdpa/mlx5: Report max device capabilities
Configure max supported virtqueues and features on the management
device.
This info can be retrieved using:
$ vdpa mgmtdev show
auxiliary/mlx5_core.sf.1:
supported_classes net
max_supported_vqs 257
dev_features CSUM GUEST_CSUM MTU HOST_TSO4 HOST_TSO6 STATUS CTRL_VQ MQ \
CTRL_MAC_ADDR VERSION_1 ACCESS_PLATFORM
Signed-off-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20220105114646.577224-12-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Si-Wei Liu<si-wei.liu@oracle.com>
Diffstat (limited to 'drivers/vdpa')
| -rw-r--r-- | drivers/vdpa/mlx5/net/mlx5_vnet.c | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 931109db1517..d1ff65065fb1 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -1866,22 +1866,29 @@ static u64 mlx_to_vritio_features(u16 dev_features) return result; } +static u64 get_supported_features(struct mlx5_core_dev *mdev) +{ + u64 mlx_vdpa_features = 0; + u16 dev_features; + + dev_features = MLX5_CAP_DEV_VDPA_EMULATION(mdev, device_features_bits_mask); + mlx_vdpa_features |= mlx_to_vritio_features(dev_features); + if (MLX5_CAP_DEV_VDPA_EMULATION(mdev, virtio_version_1_0)) + mlx_vdpa_features |= BIT_ULL(VIRTIO_F_VERSION_1); + mlx_vdpa_features |= BIT_ULL(VIRTIO_F_ACCESS_PLATFORM); + mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_CTRL_VQ); + mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_CTRL_MAC_ADDR); + mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_MQ); + mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_STATUS); + mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_MTU); + + return mlx_vdpa_features; +} + static u64 mlx5_vdpa_get_device_features(struct vdpa_device *vdev) { struct mlx5_vdpa_dev *mvdev = to_mvdev(vdev); struct mlx5_vdpa_net *ndev = to_mlx5_vdpa_ndev(mvdev); - u16 dev_features; - - dev_features = MLX5_CAP_DEV_VDPA_EMULATION(mvdev->mdev, device_features_bits_mask); - ndev->mvdev.mlx_features |= mlx_to_vritio_features(dev_features); - if (MLX5_CAP_DEV_VDPA_EMULATION(mvdev->mdev, virtio_version_1_0)) - ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_F_VERSION_1); - ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_F_ACCESS_PLATFORM); - ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_NET_F_CTRL_VQ); - ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_NET_F_CTRL_MAC_ADDR); - ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_NET_F_MQ); - ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_NET_F_STATUS); - ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_NET_F_MTU); print_features(mvdev, ndev->mvdev.mlx_features, false); return ndev->mvdev.mlx_features; @@ -2563,6 +2570,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, if (IS_ERR(ndev)) return PTR_ERR(ndev); + ndev->mvdev.mlx_features = mgtdev->mgtdev.supported_features; ndev->mvdev.max_vqs = max_vqs; mvdev = &ndev->mvdev; mvdev->mdev = mdev; @@ -2696,6 +2704,9 @@ static int mlx5v_probe(struct auxiliary_device *adev, mgtdev->mgtdev.id_table = id_table; mgtdev->mgtdev.config_attr_mask = BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MACADDR) | BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MAX_VQP); + mgtdev->mgtdev.max_supported_vqs = + MLX5_CAP_DEV_VDPA_EMULATION(mdev, max_num_virtio_queues) + 1; + mgtdev->mgtdev.supported_features = get_supported_features(mdev); mgtdev->madev = madev; err = vdpa_mgmtdev_register(&mgtdev->mgtdev); |