diff --git a/drivers/net/mlx5/Makefile b/drivers/net/mlx5/Makefile
index 9a7da18196..c3264949a7 100644
--- a/drivers/net/mlx5/Makefile
+++ b/drivers/net/mlx5/Makefile
@@ -225,6 +225,16 @@ mlx5_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh
 		rdma/rdma_netlink.h \
 		enum RDMA_NLDEV_ATTR_NDEV_INDEX \
 		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
+		HAVE_IFLA_NUM_VF \
+		linux/if_link.h \
+		enum IFLA_NUM_VF \
+		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
+		HAVE_IFLA_EXT_MASK \
+		linux/if_link.h \
+		enum IFLA_EXT_MASK \
+		$(AUTOCONF_OUTPUT)
 	$Q sh -- '$<' '$@' \
 		HAVE_IFLA_PHYS_SWITCH_ID \
 		linux/if_link.h \
diff --git a/drivers/net/mlx5/meson.build b/drivers/net/mlx5/meson.build
index 0cf2f0873e..e3cb9bc201 100644
--- a/drivers/net/mlx5/meson.build
+++ b/drivers/net/mlx5/meson.build
@@ -133,6 +133,10 @@ if build
 		'ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT' ],
 		[ 'HAVE_ETHTOOL_LINK_MODE_100G', 'linux/ethtool.h',
 		'ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT' ],
+		[ 'HAVE_IFLA_NUM_VF', 'linux/if_link.h',
+		'IFLA_NUM_VF' ],
+		[ 'HAVE_IFLA_EXT_MASK', 'linux/if_link.h',
+		'IFLA_EXT_MASK' ],
 		[ 'HAVE_IFLA_PHYS_SWITCH_ID', 'linux/if_link.h',
 		'IFLA_PHYS_SWITCH_ID' ],
 		[ 'HAVE_IFLA_PHYS_PORT_NAME', 'linux/if_link.h',
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 8141bda3fb..66411335ca 100644
--- 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.
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 88ffb19247..70a611f15a 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -205,7 +205,9 @@ struct mlx5_priv {
 	uint16_t mtu; /* Configured MTU. */
 	unsigned int isolated:1; /* Whether isolated mode is enabled. */
 	unsigned int representor:1; /* Device is a port representor. */
+	unsigned int master:1; /* Device is a E-Switch master. */
 	uint16_t domain_id; /* Switch domain identifier. */
+	uint16_t vport_id; /* Associated VF vport index (if any). */
 	int32_t representor_id; /* Port representor identifier. */
 	/* RX/TX queues. */
 	unsigned int rxqs_n; /* RX queues array size. */
diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index 2e8a2969fe..933839c67c 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -1362,8 +1362,10 @@ mlx5_sysfs_switch_info(unsigned int ifindex, struct mlx5_switch_info *info)
 		.port_name = 0,
 		.switch_id = 0,
 	};
+	DIR *dir;
 	bool port_name_set = false;
 	bool port_switch_id_set = false;
+	bool device_dir = false;
 	char c;
 	int ret;
 
@@ -1376,6 +1378,8 @@ mlx5_sysfs_switch_info(unsigned int ifindex, struct mlx5_switch_info *info)
 	      ifname);
 	MKSTR(phys_switch_id, "/sys/class/net/%s/phys_switch_id",
 	      ifname);
+	MKSTR(pci_device, "/sys/class/net/%s/device",
+	      ifname);
 
 	file = fopen(phys_port_name, "rb");
 	if (file != NULL) {
@@ -1394,9 +1398,21 @@ mlx5_sysfs_switch_info(unsigned int ifindex, struct mlx5_switch_info *info)
 		fscanf(file, "%" SCNx64 "%c", &data.switch_id, &c) == 2 &&
 		c == '\n';
 	fclose(file);
-	data.master = port_switch_id_set && !port_name_set;
-	data.representor = port_switch_id_set && port_name_set;
+	dir = opendir(pci_device);
+	if (dir != NULL) {
+		closedir(dir);
+		device_dir = true;
+	}
+	data.master = port_switch_id_set && (!port_name_set || device_dir);
+	data.representor = port_switch_id_set && port_name_set && !device_dir;
 	*info = data;
+	assert(!(data.master && data.representor));
+	if (data.master && data.representor) {
+		DRV_LOG(ERR, "ifindex %u device is recognized as master"
+			     " and as representor", ifindex);
+		rte_errno = ENODEV;
+		return -rte_errno;
+	}
 	return 0;
 }
 
diff --git a/drivers/net/mlx5/mlx5_nl.c b/drivers/net/mlx5/mlx5_nl.c
index 8a10109f9b..58bbfed1d9 100644
--- a/drivers/net/mlx5/mlx5_nl.c
+++ b/drivers/net/mlx5/mlx5_nl.c
@@ -65,6 +65,12 @@
 #endif
 
 /* These are normally found in linux/if_link.h. */
+#ifndef HAVE_IFLA_NUM_VF
+#define IFLA_NUM_VF 21
+#endif
+#ifndef HAVE_IFLA_EXT_MASK
+#define IFLA_EXT_MASK 29
+#endif
 #ifndef HAVE_IFLA_PHYS_SWITCH_ID
 #define IFLA_PHYS_SWITCH_ID 36
 #endif
@@ -837,6 +843,7 @@ mlx5_nl_switch_info_cb(struct nlmsghdr *nh, void *arg)
 	size_t off = NLMSG_LENGTH(sizeof(struct ifinfomsg));
 	bool port_name_set = false;
 	bool switch_id_set = false;
+	bool num_vf_set = false;
 
 	if (nh->nlmsg_type != RTM_NEWLINK)
 		goto error;
@@ -848,6 +855,9 @@ mlx5_nl_switch_info_cb(struct nlmsghdr *nh, void *arg)
 		if (ra->rta_len > nh->nlmsg_len - off)
 			goto error;
 		switch (ra->rta_type) {
+		case IFLA_NUM_VF:
+			num_vf_set = true;
+			break;
 		case IFLA_PHYS_PORT_NAME:
 			port_name_set =
 				mlx5_translate_port_name((char *)payload,
@@ -864,8 +874,20 @@ mlx5_nl_switch_info_cb(struct nlmsghdr *nh, void *arg)
 		}
 		off += RTA_ALIGN(ra->rta_len);
 	}
-	info.master = switch_id_set && !port_name_set;
-	info.representor = switch_id_set && port_name_set;
+	if (switch_id_set) {
+		if (info.port_name_new) {
+			/* New representors naming schema. */
+			if (port_name_set) {
+				info.master = (info.port_name == -1);
+				info.representor = (info.port_name != -1);
+			}
+		} else {
+			/* Legacy representors naming schema. */
+			info.master = (!port_name_set || num_vf_set);
+			info.representor = port_name_set && !num_vf_set;
+		}
+	}
+	assert(!(info.master && info.representor));
 	memcpy(arg, &info, sizeof(info));
 	return 0;
 error:
@@ -893,9 +915,13 @@ mlx5_nl_switch_info(int nl, unsigned int ifindex, struct mlx5_switch_info *info)
 	struct {
 		struct nlmsghdr nh;
 		struct ifinfomsg info;
+		struct rtattr rta;
+		uint32_t extmask;
 	} req = {
 		.nh = {
-			.nlmsg_len = NLMSG_LENGTH(sizeof(req.info)),
+			.nlmsg_len = NLMSG_LENGTH
+					(sizeof(req.info) +
+					 RTA_LENGTH(sizeof(uint32_t))),
 			.nlmsg_type = RTM_GETLINK,
 			.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
 		},
@@ -903,11 +929,22 @@ mlx5_nl_switch_info(int nl, unsigned int ifindex, struct mlx5_switch_info *info)
 			.ifi_family = AF_UNSPEC,
 			.ifi_index = ifindex,
 		},
+		.rta = {
+			.rta_type = IFLA_EXT_MASK,
+			.rta_len = RTA_LENGTH(sizeof(int32_t)),
+		},
+		.extmask = RTE_LE32(1),
 	};
 	int ret;
 
 	ret = mlx5_nl_send(nl, &req.nh, seq);
 	if (ret >= 0)
 		ret = mlx5_nl_recv(nl, seq, mlx5_nl_switch_info_cb, info);
+	if (info->master && info->representor) {
+		DRV_LOG(ERR, "ifindex %u device is recognized as master"
+			     " and as representor", ifindex);
+		rte_errno = ENODEV;
+		ret = -rte_errno;
+	}
 	return ret;
 }