[dpdk-dev] [PATCH v2 2/7] mlx5: check if port is configured as Ethernet device

[Adrien Mazarguil <adrien.mazarguil@6wind.com>]

From: Or Ami <ora@mellanox.com>

If the port link layer is not Ethernet, notify the user.

Signed-off-by: Or Ami <ora@mellanox.com>
---
 doc/guides/rel_notes/release_16_04.rst | 5 +++++
 drivers/net/mlx5/mlx5.c                | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/doc/guides/rel_notes/release_16_04.rst b/doc/guides/rel_notes/release_16_04.rst
index 953eaa1..73d0cfc 100644
--- a/doc/guides/rel_notes/release_16_04.rst
+++ b/doc/guides/rel_notes/release_16_04.rst
@@ -154,6 +154,11 @@ Drivers
 
   A crash could occur when failing to allocate private device context.
 
+* **mlx5: Added port type check.**
+
+  Done to prevent port initialization on non-Ethernet link layers and
+  to report an error.
+
 
 Libraries
 ~~~~~~~~~
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 41dcbbf..ae2576f 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -348,6 +348,13 @@ mlx5_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 			ERROR("port query failed: %s", strerror(err));
 			goto port_error;
 		}
+
+		if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
+			ERROR("port %d is not configured in Ethernet mode",
+			      port);
+			goto port_error;
+		}
+
 		if (port_attr.state != IBV_PORT_ACTIVE)
 			DEBUG("port %d is not active: \"%s\" (%d)",
 			      port, ibv_port_state_str(port_attr.state),
-- 
2.1.4