net/mlx5: add representor recognition on Linux 5.x

[dpdk.git] / drivers / net / mlx5 / mlx5.c

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 8141bda..6641133 100644 (file)
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -13,7 +13,6 @@
 #include <errno.h>
 #include <net/if.h>
 #include <sys/mman.h>
-#include <linux/netlink.h>
 #include <linux/rtnetlink.h>
 
 /* Verbs header. */
@@ -998,9 +997,24 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
        priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE);
        priv->nl_sn = 0;
        priv->representor = !!switch_info->representor;
+       priv->master = !!switch_info->master;
        priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
-       priv->representor_id =
-               switch_info->representor ? switch_info->port_name : -1;
+       /*
+        * Currently we support single E-Switch per PF configurations
+        * only and vport_id field contains the vport index for
+        * associated VF, which is deduced from representor port name.
+        * For exapmple, let's have the IB device port 10, it has
+        * attached network device eth0, which has port name attribute
+        * pf0vf2, we can deduce the VF number as 2, and set vport index
+        * as 3 (2+1). This assigning schema should be changed if the
+        * multiple E-Switch instances per PF configurations or/and PCI
+        * subfunctions are added.
+        */
+       priv->vport_id = switch_info->representor ?
+                        switch_info->port_name + 1 : -1;
+       /* representor_id field keeps the unmodified port/VF index. */
+       priv->representor_id = switch_info->representor ?
+                              switch_info->port_name : -1;
        /*
         * Look for sibling devices in order to reuse their switch domain
         * if any, otherwise allocate one.