[dpdk-dev] [PATCH 1/4] net/mlx5: fix invalid multi-process ID

[Suanming Mou]

The device port_id is used for inter-process communication and must
be the same both for primary and secondary process

This IPC port_id was configured with the invalid temporary value in
port spawn routine. This temporary value was used by the function
rte_eth_dev_get_port_by_name() to check whether the port exists.

This commit corrects the mp port_id with rte_eth_dev port_id.

Fixes: 2eb4d0107acc ("net/mlx5: refactor PCI probing on Linux")

Signed-off-by: Suanming Mou <suanmingm at nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
---
 drivers/net/mlx5/linux/mlx5_os.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index 9ac1d46..1d91b92 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -930,8 +930,6 @@
 	priv->dev_port = spawn->phys_port;
 	priv->pci_dev = spawn->pci_dev;
 	priv->mtu = RTE_ETHER_MTU;
-	priv->mp_id.port_id = port_id;
-	strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
 	/* Some internal functions rely on Netlink sockets, open them now. */
 	priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA);
 	priv->nl_socket_route =	mlx5_nl_init(NETLINK_ROUTE);
@@ -1347,6 +1345,8 @@
 		eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
 		eth_dev->data->representor_id = priv->representor_id;
 	}
+	priv->mp_id.port_id = eth_dev->data->port_id;
+	strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
 	/*
 	 * Store associated network device interface index. This index
 	 * is permanent throughout the lifetime of device. So, we may store
-- 
1.8.3.1