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vdpa/mlx5: Mark vq addrs for modification in hw vq

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Addresses get set by .set_vq_address. hw vq addresses will be updated on
next modify_virtqueue.

Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Message-Id: <20231225151203.152687-5-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Dragos Tatulea 2023-12-25 17:11:59 +02:00 committed by Michael S. Tsirkin
parent 145096937b
commit 9b23417825
2 changed files with 10 additions and 0 deletions
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9
drivers/vdpa/mlx5/net/mlx5_vnet.c
View File

@ -1209,6 +1209,7 @@ static int modify_virtqueue(struct mlx5_vdpa_net *ndev,
bool state_change = false;
void *obj_context;
void *cmd_hdr;
void *vq_ctx;
void *in;
int err;
@ -1230,6 +1231,7 @@ static int modify_virtqueue(struct mlx5_vdpa_net *ndev,
MLX5_SET(general_obj_in_cmd_hdr, cmd_hdr, uid, ndev->mvdev.res.uid);
obj_context = MLX5_ADDR_OF(modify_virtio_net_q_in, in, obj_context);
vq_ctx = MLX5_ADDR_OF(virtio_net_q_object, obj_context, virtio_q_context);
if (mvq->modified_fields & MLX5_VIRTQ_MODIFY_MASK_STATE) {
if (!is_valid_state_change(mvq->fw_state, state, is_resumable(ndev))) {
@ -1241,6 +1243,12 @@ static int modify_virtqueue(struct mlx5_vdpa_net *ndev,
state_change = true;
}
if (mvq->modified_fields & MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_ADDRS) {
MLX5_SET64(virtio_q, vq_ctx, desc_addr, mvq->desc_addr);
MLX5_SET64(virtio_q, vq_ctx, used_addr, mvq->device_addr);
MLX5_SET64(virtio_q, vq_ctx, available_addr, mvq->driver_addr);
}
MLX5_SET64(virtio_net_q_object, obj_context, modify_field_select, mvq->modified_fields);
err = mlx5_cmd_exec(ndev->mvdev.mdev, in, inlen, out, sizeof(out));
if (err)
@ -2202,6 +2210,7 @@ static int mlx5_vdpa_set_vq_address(struct vdpa_device *vdev, u16 idx, u64 desc_
mvq->desc_addr = desc_area;
mvq->device_addr = device_area;
mvq->driver_addr = driver_area;
mvq->modified_fields |= MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_ADDRS;
return 0;
}

1
include/linux/mlx5/mlx5_ifc_vdpa.h
View File

@ -145,6 +145,7 @@ enum {
MLX5_VIRTQ_MODIFY_MASK_STATE = (u64)1 << 0,
MLX5_VIRTQ_MODIFY_MASK_DIRTY_BITMAP_PARAMS = (u64)1 << 3,
MLX5_VIRTQ_MODIFY_MASK_DIRTY_BITMAP_DUMP_ENABLE = (u64)1 << 4,
MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_ADDRS = (u64)1 << 6,
MLX5_VIRTQ_MODIFY_MASK_DESC_GROUP_MKEY = (u64)1 << 14,
};