diff options
| -rw-r--r-- | drivers/vdpa/mlx5/net/mlx5_vnet.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index d0f91078600e..5d7f3e8000c6 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -2565,6 +2565,28 @@ static int event_handler(struct notifier_block *nb, unsigned long event, void *p return ret; } +static int config_func_mtu(struct mlx5_core_dev *mdev, u16 mtu) +{ + int inlen = MLX5_ST_SZ_BYTES(modify_nic_vport_context_in); + void *in; + int err; + + in = kvzalloc(inlen, GFP_KERNEL); + if (!in) + return -ENOMEM; + + MLX5_SET(modify_nic_vport_context_in, in, field_select.mtu, 1); + MLX5_SET(modify_nic_vport_context_in, in, nic_vport_context.mtu, + mtu + MLX5V_ETH_HARD_MTU); + MLX5_SET(modify_nic_vport_context_in, in, opcode, + MLX5_CMD_OP_MODIFY_NIC_VPORT_CONTEXT); + + err = mlx5_cmd_exec_in(mdev, modify_nic_vport_context, in); + + kvfree(in); + return err; +} + static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, const struct vdpa_dev_set_config *add_config) { @@ -2624,6 +2646,13 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, init_mvqs(ndev); mutex_init(&ndev->reslock); config = &ndev->config; + + if (add_config->mask & BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MTU)) { + err = config_func_mtu(mdev, add_config->net.mtu); + if (err) + goto err_mtu; + } + err = query_mtu(mdev, &mtu); if (err) goto err_mtu; @@ -2741,7 +2770,8 @@ static int mlx5v_probe(struct auxiliary_device *adev, mgtdev->mgtdev.device = mdev->device; 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); + BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MAX_VQP) | + BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MTU); mgtdev->mgtdev.max_supported_vqs = MLX5_CAP_DEV_VDPA_EMULATION(mdev, max_num_virtio_queues) + 1; mgtdev->mgtdev.supported_features = get_supported_features(mdev); |