diff options
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 8fd35ebb13e3..4a043cf35b9a 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -995,6 +995,31 @@ static int mlx5_ib_modify_device(struct ib_device *ibdev, int mask, return err; } +static int set_port_caps_atomic(struct mlx5_ib_dev *dev, u8 port_num, u32 mask, + u32 value) +{ + struct mlx5_hca_vport_context ctx = {}; + int err; + + err = mlx5_query_hca_vport_context(dev->mdev, 0, + port_num, 0, &ctx); + if (err) + return err; + + if (~ctx.cap_mask1_perm & mask) { + mlx5_ib_warn(dev, "trying to change bitmask 0x%X but change supported 0x%X\n", + mask, ctx.cap_mask1_perm); + return -EINVAL; + } + + ctx.cap_mask1 = value; + ctx.cap_mask1_perm = mask; + err = mlx5_core_modify_hca_vport_context(dev->mdev, 0, + port_num, 0, &ctx); + + return err; +} + static int mlx5_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, struct ib_port_modify *props) { @@ -1002,6 +1027,16 @@ static int mlx5_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, struct ib_port_attr attr; u32 tmp; int err; + u32 change_mask; + u32 value; + bool is_ib = (mlx5_ib_port_link_layer(ibdev, port) == + IB_LINK_LAYER_INFINIBAND); + + if (MLX5_CAP_GEN(dev->mdev, ib_virt) && is_ib) { + change_mask = props->clr_port_cap_mask | props->set_port_cap_mask; + value = ~props->clr_port_cap_mask | props->set_port_cap_mask; + return set_port_caps_atomic(dev, port, change_mask, value); + } mutex_lock(&dev->cap_mask_mutex); |