RDMA/mlx5: Initialize phys_port_cnt earlier in RDMA device creation

phys_port_cnt of the IB device must be initialized before calling
ib_device_set_netdev().

Previously, phys_port_cnt was initialized in the mlx5_ib init function.
Remove this initialization to allow setting it separately, providing
the flexibility to call ib_device_set_netdev before registering the
IB device.

Signed-off-by: Chiara Meiohas <cmeiohas@nvidia.com>
Signed-off-by: Michael Guralnik <michaelgur@nvidia.com>
Link: https://patch.msgid.link/20240909173025.30422-4-michaelgur@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

drivers/infiniband/hw/mlx5/ib_rep.c

@@ -104,6 +104,7 @@ mlx5_ib_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
 	ibdev->is_rep = true;
 	vport_index = rep->vport_index;
 	ibdev->port[vport_index].rep = rep;
+	ibdev->ib_dev.phys_port_cnt = num_ports;
 	ibdev->port[vport_index].roce.netdev =
 		mlx5_ib_get_rep_netdev(lag_master->priv.eswitch, rep->vport);
 	ibdev->mdev = lag_master;

drivers/infiniband/hw/mlx5/main.c

@@ -3934,7 +3934,6 @@ static int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev)
 
 	dev->ib_dev.node_type = RDMA_NODE_IB_CA;
 	dev->ib_dev.local_dma_lkey = 0 /* not supported for now */;
-	dev->ib_dev.phys_port_cnt = dev->num_ports;
 	dev->ib_dev.dev.parent = mdev->device;
 	dev->ib_dev.lag_flags = RDMA_LAG_FLAGS_HASH_ALL_SLAVES;
 
@@ -4649,6 +4648,7 @@ static struct ib_device *mlx5_ib_add_sub_dev(struct ib_device *parent,
 	mplane->mdev = mparent->mdev;
 	mplane->num_ports = mparent->num_plane;
 	mplane->sub_dev_name = name;
+	mplane->ib_dev.phys_port_cnt = mplane->num_ports;
 
 	ret = __mlx5_ib_add(mplane, &plane_profile);
 	if (ret)
@@ -4765,6 +4765,7 @@ static int mlx5r_probe(struct auxiliary_device *adev,
 
 	dev->mdev = mdev;
 	dev->num_ports = num_ports;
+	dev->ib_dev.phys_port_cnt = num_ports;
 
 	if (ll == IB_LINK_LAYER_ETHERNET && !mlx5_get_roce_state(mdev))
 		profile = &raw_eth_profile;