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IB/mlx5: Support IB device's callback for getting the link layer

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Make the existing mlx5_ib_port_link_layer() signature match
the ib device callback signature (add port_num parameter).
Refactor it to use a sub function so that the link layer could
be queried also before the ibdev is created.

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Achiad Shochat 2015-12-23 18:47:16 +02:00 committed by Doug Ledford
parent 59f65f495d
commit ebd61f68e1
1 changed files with 19 additions and 6 deletions
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25
drivers/infiniband/hw/mlx5/main.c
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@ -64,11 +64,9 @@ static char mlx5_version[] =
DRIVER_VERSION " (" DRIVER_RELDATE ")\n";
static enum rdma_link_layer
mlx5_ib_port_link_layer(struct ib_device *device)
mlx5_port_type_cap_to_rdma_ll(int port_type_cap)
{
struct mlx5_ib_dev *dev = to_mdev(device);
switch (MLX5_CAP_GEN(dev->mdev, port_type)) {
switch (port_type_cap) {
case MLX5_CAP_PORT_TYPE_IB:
return IB_LINK_LAYER_INFINIBAND;
case MLX5_CAP_PORT_TYPE_ETH:
@ -78,6 +76,15 @@ mlx5_ib_port_link_layer(struct ib_device *device)
}
}
static enum rdma_link_layer
mlx5_ib_port_link_layer(struct ib_device *device, u8 port_num)
{
struct mlx5_ib_dev *dev = to_mdev(device);
int port_type_cap = MLX5_CAP_GEN(dev->mdev, port_type);
return mlx5_port_type_cap_to_rdma_ll(port_type_cap);
}
static int mlx5_use_mad_ifc(struct mlx5_ib_dev *dev)
{
return !dev->mdev->issi;
@ -94,7 +101,7 @@ static int mlx5_get_vport_access_method(struct ib_device *ibdev)
if (mlx5_use_mad_ifc(to_mdev(ibdev)))
return MLX5_VPORT_ACCESS_METHOD_MAD;
if (mlx5_ib_port_link_layer(ibdev) ==
if (mlx5_ib_port_link_layer(ibdev, 1) ==
IB_LINK_LAYER_ETHERNET)
return MLX5_VPORT_ACCESS_METHOD_NIC;
@ -1325,11 +1332,16 @@ static int mlx5_port_immutable(struct ib_device *ibdev, u8 port_num,
static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
{
struct mlx5_ib_dev *dev;
enum rdma_link_layer ll;
int port_type_cap;
int err;
int i;
port_type_cap = MLX5_CAP_GEN(mdev, port_type);
ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap);
/* don't create IB instance over Eth ports, no RoCE yet! */
if (MLX5_CAP_GEN(mdev, port_type) == MLX5_CAP_PORT_TYPE_ETH)
if (ll == IB_LINK_LAYER_ETHERNET)
return NULL;
printk_once(KERN_INFO "%s", mlx5_version);
@ -1389,6 +1401,7 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
dev->ib_dev.query_device = mlx5_ib_query_device;
dev->ib_dev.query_port = mlx5_ib_query_port;
dev->ib_dev.get_link_layer = mlx5_ib_port_link_layer;
dev->ib_dev.query_gid = mlx5_ib_query_gid;
dev->ib_dev.query_pkey = mlx5_ib_query_pkey;
dev->ib_dev.modify_device = mlx5_ib_modify_device;