dpdk: refactor device setup

Type: improvement
Change-Id: I9772088bca176fd0fdb162677ec55c59aa8f3adf
Signed-off-by: Damjan Marion <damarion@cisco.com>

6 files changed, 327 insertions, 540 deletions

diff --git a/src/plugins/dpdk/device/device.c b/src/plugins/dpdk/device/device.c
index b8418278fba..c9061a9949a 100644
--- a/src/plugins/dpdk/device/device.c
+++ b/src/plugins/dpdk/device/device.c
@@ -547,7 +547,7 @@ dpdk_subif_add_del_function (vnet_main_t * vnm,
     xd->num_subifs--;
 
   /* currently we program VLANS only for IXGBE VF */
-  if (xd->pmd != VNET_DPDK_PMD_IXGBEVF)
+  if (xd->driver->program_vlans == 0)
     goto done;
 
   if (t->sub.eth.flags.no_tags == 1)
diff --git a/src/plugins/dpdk/device/dpdk.h b/src/plugins/dpdk/device/dpdk.h
index 1ebda6c5677..f1cd17da1cd 100644
--- a/src/plugins/dpdk/device/dpdk.h
+++ b/src/plugins/dpdk/device/dpdk.h
@@ -45,79 +45,6 @@ extern vnet_device_class_t dpdk_device_class;
 extern vlib_node_registration_t dpdk_input_node;
 extern vlib_node_registration_t admin_up_down_process_node;
 
-#if RTE_VERSION < RTE_VERSION_NUM(20, 8, 0, 0)
-#define DPDK_MLX5_PMD_NAME "net_mlx5"
-#else
-#define DPDK_MLX5_PMD_NAME "mlx5_pci"
-#endif
-
-#define foreach_dpdk_pmd                                                      \
-  _ ("net_thunderx", THUNDERX)                                                \
-  _ ("net_e1000_em", E1000EM)                                                 \
-  _ ("net_e1000_igb", IGB)                                                    \
-  _ ("net_e1000_igb_vf", IGBVF)                                               \
-  _ ("net_ixgbe", IXGBE)                                                      \
-  _ ("net_ixgbe_vf", IXGBEVF)                                                 \
-  _ ("net_i40e", I40E)                                                        \
-  _ ("net_i40e_vf", I40EVF)                                                   \
-  _ ("net_ice", ICE)                                                          \
-  _ ("net_iavf", IAVF)                                                        \
-  _ ("net_igc", IGC)                                                          \
-  _ ("net_virtio", VIRTIO)                                                    \
-  _ ("net_enic", ENIC)                                                        \
-  _ ("net_vmxnet3", VMXNET3)                                                  \
-  _ ("AF_PACKET PMD", AF_PACKET)                                              \
-  _ ("net_fm10k", FM10K)                                                      \
-  _ ("net_cxgbe", CXGBE)                                                      \
-  _ ("net_mlx4", MLX4)                                                        \
-  _ (DPDK_MLX5_PMD_NAME, MLX5)                                                \
-  _ ("net_dpaa2", DPAA2)                                                      \
-  _ ("net_virtio_user", VIRTIO_USER)                                          \
-  _ ("net_vhost", VHOST_ETHER)                                                \
-  _ ("net_ena", ENA)                                                          \
-  _ ("net_failsafe", FAILSAFE)                                                \
-  _ ("net_liovf", LIOVF_ETHER)                                                \
-  _ ("net_qede", QEDE)                                                        \
-  _ ("net_netvsc", NETVSC)                                                    \
-  _ ("net_bnxt", BNXT)
-
-typedef enum
-{
-  VNET_DPDK_PMD_NONE,
-#define _(s,f) VNET_DPDK_PMD_##f,
-  foreach_dpdk_pmd
-#undef _
-    VNET_DPDK_PMD_UNKNOWN,	/* must be last */
-} dpdk_pmd_t;
-
-#define forach_dpdk_port_type                                                 \
-  _ (ETH_1G, "GigabitEthernet")                                               \
-  _ (ETH_2_5G, "Two_FiveGigabitEthernet")                                     \
-  _ (ETH_5G, "FiveGigabitEthernet")                                           \
-  _ (ETH_10G, "TenGigabitEthernet")                                           \
-  _ (ETH_20G, "TwentyGigabitEthernet")                                        \
-  _ (ETH_25G, "TwentyFiveGigabitEthernet")                                    \
-  _ (ETH_40G, "FortyGigabitEthernet")                                         \
-  _ (ETH_50G, "FiftyGigabitEthernet")                                         \
-  _ (ETH_56G, "FiftySixGigabitEthernet")                                      \
-  _ (ETH_100G, "HundredGigabitEthernet")                                      \
-  _ (ETH_200G, "TwoHundredGigabitEthernet")                                   \
-  _ (ETH_SWITCH, "EthernetSwitch")                                            \
-  _ (ETH_VF, "VirtualFunctionEthernet")                                       \
-  _ (AF_PACKET, "af_packet")                                                  \
-  _ (VIRTIO_USER, "VirtioUser")                                               \
-  _ (VHOST_ETHER, "VhostEthernet")                                            \
-  _ (FAILSAFE, "FailsafeEthernet")                                            \
-  _ (NETVSC, "NetVSC")
-
-typedef enum
-{
-  VNET_DPDK_PORT_TYPE_UNKNOWN = 0,
-#define _(n, s) VNET_DPDK_PORT_TYPE_##n,
-  forach_dpdk_port_type
-#undef _
-} dpdk_port_type_t;
-
 typedef uint16_t dpdk_portid_t;
 
 #define foreach_dpdk_device_flags                                             \
@@ -133,12 +60,12 @@ typedef uint16_t dpdk_portid_t;
   _ (13, INT_SUPPORTED, "int-supported")                                      \
   _ (14, INT_UNMASKABLE, "int-unmaskable")
 
-enum
+typedef enum
 {
 #define _(a, b, c) DPDK_DEVICE_FLAG_##b = (1 << a),
   foreach_dpdk_device_flags
 #undef _
-};
+} dpdk_device_flag_t;
 
 typedef struct
 {
@@ -169,6 +96,31 @@ typedef struct
   clib_spinlock_t lock;
 } dpdk_tx_queue_t;
 
+typedef struct
+{
+  const char *name;
+  const char *desc;
+} dpdk_driver_name_t;
+
+typedef struct
+{
+  dpdk_driver_name_t *drivers;
+  const char *interface_name_prefix;
+  u16 n_rx_desc;
+  u16 n_tx_desc;
+  u32 supported_flow_actions;
+  i32 enable_lsc_int : 1;
+  i32 enable_rxq_int : 1;
+  i32 disable_rx_scatter : 1;
+  i32 program_vlans : 1;
+  i32 mq_mode_none : 1;
+  i32 interface_number_from_port_id : 1;
+  i32 use_intel_phdr_cksum : 1;
+  i32 int_unmaskable : 1;
+} dpdk_driver_t;
+
+dpdk_driver_t *dpdk_driver_find (const char *name, const char **desc);
+
 typedef union
 {
   struct
@@ -216,15 +168,15 @@ typedef struct
 
   /* DPDK device port number */
   dpdk_portid_t port_id;
-  dpdk_pmd_t pmd:8;
   i8 cpu_socket;
 
   CLIB_CACHE_LINE_ALIGN_MARK (cacheline1);
 
   u64 enabled_tx_off;
   u64 enabled_rx_off;
+  dpdk_driver_t *driver;
   u8 *name;
-  u8 *interface_name_suffix;
+  const char *if_desc;
 
   /* number of sub-interfaces */
   u16 num_subifs;
@@ -244,7 +196,6 @@ typedef struct
   struct rte_eth_stats last_stats;
   struct rte_eth_xstat *xstats;
   f64 time_last_stats_update;
-  dpdk_port_type_t port_type;
 
   /* mac address */
   u8 *default_mac_address;
diff --git a/src/plugins/dpdk/device/dpdk_priv.h b/src/plugins/dpdk/device/dpdk_priv.h
index e170134052d..4e4438a007e 100644
--- a/src/plugins/dpdk/device/dpdk_priv.h
+++ b/src/plugins/dpdk/device/dpdk_priv.h
@@ -16,8 +16,6 @@
 #define DPDK_NB_RX_DESC_DEFAULT   1024
 #define DPDK_NB_TX_DESC_DEFAULT   1024
 #define DPDK_MAX_LRO_SIZE_DEFAULT 65536
-#define DPDK_NB_RX_DESC_VIRTIO    256
-#define DPDK_NB_TX_DESC_VIRTIO    256
 
 /* These args appear by themselves */
 #define foreach_eal_double_hyphen_predicate_arg \
diff --git a/src/plugins/dpdk/device/driver.c b/src/plugins/dpdk/device/driver.c
new file mode 100644
index 00000000000..11d65f7de94
--- /dev/null
+++ b/src/plugins/dpdk/device/driver.c
@@ -0,0 +1,145 @@
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright(c) 2021 Cisco Systems, Inc.
+ */
+
+#include <vlib/vlib.h>
+
+#include <dpdk/device/dpdk.h>
+
+static const u32 supported_flow_actions_intel =
+  (VNET_FLOW_ACTION_MARK | VNET_FLOW_ACTION_REDIRECT_TO_NODE |
+   VNET_FLOW_ACTION_REDIRECT_TO_QUEUE | VNET_FLOW_ACTION_BUFFER_ADVANCE |
+   VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP | VNET_FLOW_ACTION_RSS);
+
+#define DPDK_DRIVERS(...)                                                     \
+  (dpdk_driver_name_t[])                                                      \
+  {                                                                           \
+    __VA_ARGS__, {}                                                           \
+  }
+
+static dpdk_driver_t dpdk_drivers[] = {
+  {
+    .drivers = DPDK_DRIVERS ({ "net_ice", "Intel E810 Family" },
+			     { "net_igc", "Intel I225 2.5G Family" },
+			     { "net_e1000_igb", "Intel e1000" },
+			     { "net_e1000_em", "Intel 82540EM (e1000)" }),
+    .enable_rxq_int = 1,
+    .supported_flow_actions = supported_flow_actions_intel,
+    .use_intel_phdr_cksum = 1,
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_ixgbe", "Intel 82599" }),
+    .enable_rxq_int = 1,
+    .program_vlans = 1,
+    .supported_flow_actions = supported_flow_actions_intel,
+    .use_intel_phdr_cksum = 1,
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_i40e", "Intel X710/XL710 Family" }),
+    .enable_rxq_int = 1,
+    .supported_flow_actions = supported_flow_actions_intel,
+    .use_intel_phdr_cksum = 1,
+    .int_unmaskable = 1,
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_liovf", "Cavium Lio VF" },
+			     { "net_thunderx", "Cavium ThunderX" }),
+    .interface_name_prefix = "VirtualFunctionEthernet",
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_iavf", "Intel iAVF" },
+			     { "net_i40e_vf", "Intel X710/XL710 Family VF" }),
+    .interface_name_prefix = "VirtualFunctionEthernet",
+    .supported_flow_actions = supported_flow_actions_intel,
+    .use_intel_phdr_cksum = 1,
+    .int_unmaskable = 1,
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_e1000_igb_vf", "Intel e1000 VF" },
+			     { "net_ixgbe_vf", "Intel 82599 VF" }),
+    .interface_name_prefix = "VirtualFunctionEthernet",
+    .use_intel_phdr_cksum = 1,
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_dpaa2", "NXP DPAA2 Mac" }),
+    .interface_name_prefix = "TenGigabitEthernet",
+  },
+  {
+    .drivers =
+      DPDK_DRIVERS ({ "net_fm10k", "Intel FM10000 Family Ethernet Switch" }),
+    .interface_name_prefix = "EthernetSwitch",
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_cxgbe", "Chelsio T4/T5" }),
+    .interface_number_from_port_id = 1,
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_mlx4", "Mellanox ConnectX-3 Family" },
+			     { "net_qede", "Cavium QLogic FastLinQ QL4xxxx" },
+			     { "net_bnxt", "Broadcom NetXtreme E/S-Series" }),
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_virtio_user", "Virtio User" }),
+    .interface_name_prefix = "VirtioUser",
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_vhost", "VhostEthernet" }),
+    .interface_name_prefix = "VhostEthernet",
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "mlx5_pci", "Mellanox ConnectX-4 Family" },
+			     { "net_enic", "Cisco VIC" }),
+    .use_intel_phdr_cksum = 1,
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_failsafe", "FailsafeEthernet" }),
+    .interface_name_prefix = "FailsafeEthernet",
+    .enable_lsc_int = 1,
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "AF_PACKET PMD", "af_packet" }),
+    .interface_name_prefix = "af_packet",
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_netvsc", "Microsoft Hyper-V Netvsc" }),
+    .interface_name_prefix = "NetVSC",
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_ena", "AWS ENA VF" }),
+    .interface_name_prefix = "VirtualFunctionEthernet",
+    .enable_rxq_int = 1,
+    .disable_rx_scatter = 1,
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_vmxnet3", "VMware VMXNET3" }),
+    .interface_name_prefix = "GigabitEthernet",
+  },
+  {
+    .drivers = DPDK_DRIVERS ({ "net_virtio", "Red Hat Virtio" }),
+    .interface_name_prefix = "GigabitEthernet",
+    .n_rx_desc = 256,
+    .n_tx_desc = 256,
+    .mq_mode_none = 1,
+  }
+};
+
+dpdk_driver_t *
+dpdk_driver_find (const char *name, const char **desc)
+{
+  for (int i = 0; i < ARRAY_LEN (dpdk_drivers); i++)
+    {
+      dpdk_driver_t *dr = dpdk_drivers + i;
+      dpdk_driver_name_t *dn = dr->drivers;
+
+      while (dn->name)
+	{
+	  if (name && !strcmp (name, dn->name))
+	    {
+	      *desc = dn->desc;
+	      return dr;
+	    }
+	  dn++;
+	}
+    }
+  return 0;
+}
diff --git a/src/plugins/dpdk/device/format.c b/src/plugins/dpdk/device/format.c
index e8aca247be5..4a4b4110b9f 100644
--- a/src/plugins/dpdk/device/format.c
+++ b/src/plugins/dpdk/device/format.c
@@ -147,49 +147,14 @@
 #define foreach_dpdk_pkt_dyn_rx_offload_flag				\
   _ (RX_TIMESTAMP, 0, "Timestamp field is valid")
 
-static char *device_name_by_port_type[] = {
-#define _(n, s) [VNET_DPDK_PORT_TYPE_##n] = (s),
-  forach_dpdk_port_type
-#undef _
-};
-
 u8 *
 format_dpdk_device_name (u8 * s, va_list * args)
 {
   dpdk_main_t *dm = &dpdk_main;
-  char *devname_format;
-  char *device_name = 0;
   u32 i = va_arg (*args, u32);
   dpdk_device_t *xd = vec_elt_at_index (dm->devices, i);
-  struct rte_eth_dev_info dev_info;
-  struct rte_pci_device *pci_dev;
-  u8 *ret;
-
-  if (xd->name)
-    return format (s, "%s", xd->name);
-
-  if (dm->conf->interface_name_format_decimal)
-    devname_format = "%s%d/%d/%d";
-  else
-    devname_format = "%s%x/%x/%x";
-
-  if (xd->port_type < ARRAY_LEN (device_name_by_port_type))
-    device_name = device_name_by_port_type[xd->port_type];
-
-  device_name = device_name ? device_name : "UnknownEthernet";
-
-  rte_eth_dev_info_get (xd->port_id, &dev_info);
-  pci_dev = dpdk_get_pci_device (&dev_info);
-
-  if (pci_dev && xd->port_type != VNET_DPDK_PORT_TYPE_FAILSAFE)
-    ret = format (s, devname_format, device_name, pci_dev->addr.bus,
-		  pci_dev->addr.devid, pci_dev->addr.function);
-  else
-    ret = format (s, "%s%d", device_name, xd->port_id);
 
-  if (xd->interface_name_suffix)
-    return format (ret, "/%s", xd->interface_name_suffix);
-  return ret;
+  return format (s, "%v", xd->name);
 }
 
 u8 *
@@ -211,126 +176,12 @@ static u8 *
 format_dpdk_device_type (u8 * s, va_list * args)
 {
   dpdk_main_t *dm = &dpdk_main;
-  char *dev_type;
   u32 i = va_arg (*args, u32);
 
-  switch (dm->devices[i].pmd)
-    {
-    case VNET_DPDK_PMD_E1000EM:
-      dev_type = "Intel 82540EM (e1000)";
-      break;
-
-    case VNET_DPDK_PMD_IGB:
-      dev_type = "Intel e1000";
-      break;
-
-    case VNET_DPDK_PMD_I40E:
-      dev_type = "Intel X710/XL710 Family";
-      break;
-
-    case VNET_DPDK_PMD_I40EVF:
-      dev_type = "Intel X710/XL710 Family VF";
-      break;
-
-    case VNET_DPDK_PMD_ICE:
-      dev_type = "Intel E810 Family";
-      break;
-
-    case VNET_DPDK_PMD_IAVF:
-      dev_type = "Intel iAVF";
-      break;
-
-    case VNET_DPDK_PMD_FM10K:
-      dev_type = "Intel FM10000 Family Ethernet Switch";
-      break;
-
-    case VNET_DPDK_PMD_IGBVF:
-      dev_type = "Intel e1000 VF";
-      break;
-
-    case VNET_DPDK_PMD_VIRTIO:
-      dev_type = "Red Hat Virtio";
-      break;
-
-    case VNET_DPDK_PMD_IXGBEVF:
-      dev_type = "Intel 82599 VF";
-      break;
-
-    case VNET_DPDK_PMD_IXGBE:
-      dev_type = "Intel 82599";
-      break;
-
-    case VNET_DPDK_PMD_ENIC:
-      dev_type = "Cisco VIC";
-      break;
-
-    case VNET_DPDK_PMD_CXGBE:
-      dev_type = "Chelsio T4/T5";
-      break;
-
-    case VNET_DPDK_PMD_MLX4:
-      dev_type = "Mellanox ConnectX-3 Family";
-      break;
-
-    case VNET_DPDK_PMD_MLX5:
-      dev_type = "Mellanox ConnectX-4 Family";
-      break;
-
-    case VNET_DPDK_PMD_VMXNET3:
-      dev_type = "VMware VMXNET3";
-      break;
-
-    case VNET_DPDK_PMD_AF_PACKET:
-      dev_type = "af_packet";
-      break;
-
-    case VNET_DPDK_PMD_DPAA2:
-      dev_type = "NXP DPAA2 Mac";
-      break;
-
-    case VNET_DPDK_PMD_VIRTIO_USER:
-      dev_type = "Virtio User";
-      break;
-
-    case VNET_DPDK_PMD_THUNDERX:
-      dev_type = "Cavium ThunderX";
-      break;
-
-    case VNET_DPDK_PMD_VHOST_ETHER:
-      dev_type = "VhostEthernet";
-      break;
-
-    case VNET_DPDK_PMD_ENA:
-      dev_type = "AWS ENA VF";
-      break;
-
-    case VNET_DPDK_PMD_FAILSAFE:
-      dev_type = "FailsafeEthernet";
-      break;
-
-    case VNET_DPDK_PMD_LIOVF_ETHER:
-      dev_type = "Cavium Lio VF";
-      break;
-
-    case VNET_DPDK_PMD_QEDE:
-      dev_type = "Cavium QLogic FastLinQ QL4xxxx";
-      break;
-
-    case VNET_DPDK_PMD_NETVSC:
-      dev_type = "Microsoft Hyper-V Netvsc";
-      break;
-
-    case VNET_DPDK_PMD_BNXT:
-      dev_type = "Broadcom NetXtreme E/S-Series";
-      break;
-
-    default:
-    case VNET_DPDK_PMD_UNKNOWN:
-      dev_type = "### UNKNOWN ###";
-      break;
-    }
-
-  return format (s, dev_type);
+  if (dm->devices[i].if_desc)
+    return format (s, dm->devices[i].if_desc);
+  else
+    return format (s, "### UNKNOWN ###");
 }
 
 static u8 *
diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index 1d3e061aaaf..5e06e48d37e 100644
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -43,42 +43,30 @@
 
 #include <dpdk/device/dpdk_priv.h>
 
-#define ETHER_MAX_LEN   1518  /**< Maximum frame len, including CRC. */
-
 dpdk_main_t dpdk_main;
 dpdk_config_main_t dpdk_config_main;
 
 #define LINK_STATE_ELOGS	0
 
-/* Port configuration, mildly modified Intel app values */
-
-static dpdk_port_type_t
-port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
+/* dev_info.speed_capa -> interface name mapppings */
+const struct
 {
-
-  if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
-    return VNET_DPDK_PORT_TYPE_ETH_100G;
-  else if (dev_info->speed_capa & ETH_LINK_SPEED_56G)
-    return VNET_DPDK_PORT_TYPE_ETH_56G;
-  else if (dev_info->speed_capa & ETH_LINK_SPEED_50G)
-    return VNET_DPDK_PORT_TYPE_ETH_50G;
-  else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
-    return VNET_DPDK_PORT_TYPE_ETH_40G;
-  else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
-    return VNET_DPDK_PORT_TYPE_ETH_25G;
-  else if (dev_info->speed_capa & ETH_LINK_SPEED_20G)
-    return VNET_DPDK_PORT_TYPE_ETH_20G;
-  else if (dev_info->speed_capa & ETH_LINK_SPEED_10G)
-    return VNET_DPDK_PORT_TYPE_ETH_10G;
-  else if (dev_info->speed_capa & ETH_LINK_SPEED_5G)
-    return VNET_DPDK_PORT_TYPE_ETH_5G;
-  else if (dev_info->speed_capa & ETH_LINK_SPEED_2_5G)
-    return VNET_DPDK_PORT_TYPE_ETH_2_5G;
-  else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
-    return VNET_DPDK_PORT_TYPE_ETH_1G;
-
-  return VNET_DPDK_PORT_TYPE_UNKNOWN;
-}
+  u32 link_speed;
+  const char *pfx;
+} if_name_prefixes[] = {
+  /* sorted, higher speed first */
+  { ETH_LINK_SPEED_200G, "TwoHundredGigabitEthernet" },
+  { ETH_LINK_SPEED_100G, "HundredGigabitEthernet" },
+  { ETH_LINK_SPEED_56G, "FiftySixGigabitEthernet" },
+  { ETH_LINK_SPEED_50G, "FiftyGigabitEthernet" },
+  { ETH_LINK_SPEED_40G, "FortyGigabitEthernet" },
+  { ETH_LINK_SPEED_25G, "TwentyFiveGigabitEthernet" },
+  { ETH_LINK_SPEED_20G, "TwentyGigabitEthernet" },
+  { ETH_LINK_SPEED_10G, "TenGigabitEthernet" },
+  { ETH_LINK_SPEED_5G, "FiveGigabitEthernet" },
+  { ETH_LINK_SPEED_2_5G, "TwoDotFiveGigabitEthernet" },
+  { ETH_LINK_SPEED_1G, "GigabitEthernet" },
+};
 
 static u32
 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
@@ -161,31 +149,53 @@ check_l3cache ()
   return 0;
 }
 
+static dpdk_device_config_t *
+dpdk_find_startup_config (struct rte_eth_dev_info *di)
+{
+  dpdk_main_t *dm = &dpdk_main;
+  struct rte_pci_device *pci_dev;
+  struct rte_vmbus_device *vmbus_dev;
+  vlib_pci_addr_t pci_addr;
+  vlib_vmbus_addr_t vmbus_addr;
+  uword *p = 0;
+
+  if ((pci_dev = dpdk_get_pci_device (di)))
+    {
+      pci_addr.domain = pci_dev->addr.domain;
+      pci_addr.bus = pci_dev->addr.bus;
+      pci_addr.slot = pci_dev->addr.devid;
+      pci_addr.function = pci_dev->addr.function;
+      p =
+	hash_get (dm->conf->device_config_index_by_pci_addr, pci_addr.as_u32);
+    }
+
+  if ((vmbus_dev = dpdk_get_vmbus_device (di)))
+    {
+      unformat_input_t input_vmbus;
+      unformat_init_string (&input_vmbus, di->device->name,
+			    strlen (di->device->name));
+      if (unformat (&input_vmbus, "%U", unformat_vlib_vmbus_addr, &vmbus_addr))
+	p = mhash_get (&dm->conf->device_config_index_by_vmbus_addr,
+		       &vmbus_addr);
+      unformat_free (&input_vmbus);
+    }
+
+  if (p)
+    return pool_elt_at_index (dm->conf->dev_confs, p[0]);
+  return &dm->conf->default_devconf;
+}
+
 static clib_error_t *
 dpdk_lib_init (dpdk_main_t * dm)
 {
   vnet_main_t *vnm = vnet_get_main ();
-  u32 nports;
   u16 port_id;
-  vlib_main_t *vm = vlib_get_main ();
   vlib_thread_main_t *tm = vlib_get_thread_main ();
   vnet_device_main_t *vdm = &vnet_device_main;
   vnet_sw_interface_t *sw;
   vnet_hw_interface_t *hi;
   dpdk_device_t *xd;
-  vlib_pci_addr_t last_pci_addr;
-  u32 last_pci_addr_port = 0;
-  last_pci_addr.as_u32 = ~0;
-
-  nports = rte_eth_dev_count_avail ();
-
-  if (nports < 1)
-    {
-      dpdk_log_notice ("DPDK drivers found no Ethernet devices...");
-    }
-
-  if (CLIB_DEBUG > 0)
-    dpdk_log_notice ("DPDK drivers found %d ports...", nports);
+  char *if_num_fmt;
 
   /* vlib_buffer_t template */
   vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
@@ -197,6 +207,9 @@ dpdk_lib_init (dpdk_main_t * dm)
       vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
     }
 
+  if_num_fmt =
+    dm->conf->interface_name_format_decimal ? "%d/%d/%d" : "%x/%x/%x";
+
   /* device config defaults */
   dm->default_port_conf.n_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
   dm->default_port_conf.n_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
@@ -212,121 +225,109 @@ dpdk_lib_init (dpdk_main_t * dm)
   RTE_ETH_FOREACH_DEV (port_id)
     {
       u8 addr[6];
+      int rv, q;
       struct rte_eth_dev_info di;
-      struct rte_pci_device *pci_dev;
-      struct rte_vmbus_device *vmbus_dev;
-      dpdk_portid_t next_port_id;
       dpdk_device_config_t *devconf = 0;
       vnet_eth_interface_registration_t eir = {};
-      vlib_pci_addr_t pci_addr;
-      vlib_vmbus_addr_t vmbus_addr;
-      uword *p = 0;
+      dpdk_driver_t *dr;
 
       if (!rte_eth_dev_is_valid_port (port_id))
 	continue;
 
-      rte_eth_dev_info_get (port_id, &di);
-
-      if (di.device == 0)
+      if ((rv = rte_eth_dev_info_get (port_id, &di)) != 0)
 	{
-	  dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
-			   di.driver_name);
+	  dpdk_log_warn ("[%u] failed to get device info. skipping device.",
+			 port_id);
 	  continue;
 	}
 
-      pci_dev = dpdk_get_pci_device (&di);
-
-      if (pci_dev)
+      if (di.device == 0)
 	{
-	  pci_addr.domain = pci_dev->addr.domain;
-	  pci_addr.bus = pci_dev->addr.bus;
-	  pci_addr.slot = pci_dev->addr.devid;
-	  pci_addr.function = pci_dev->addr.function;
-	  p = hash_get (dm->conf->device_config_index_by_pci_addr,
-			pci_addr.as_u32);
+	  dpdk_log_warn ("[%u] missing device info. Skipping '%s' device",
+			 port_id, di.driver_name);
+	  continue;
 	}
 
-      vmbus_dev = dpdk_get_vmbus_device (&di);
+      devconf = dpdk_find_startup_config (&di);
 
-      if (vmbus_dev)
+      /* If device is blacklisted, we should skip it */
+      if (devconf->is_blacklisted)
 	{
-	  unformat_input_t input_vmbus;
-	  unformat_init_string (&input_vmbus, di.device->name,
-				strlen (di.device->name));
-	  if (unformat (&input_vmbus, "%U", unformat_vlib_vmbus_addr,
-			&vmbus_addr))
-	    {
-	      p = mhash_get (&dm->conf->device_config_index_by_vmbus_addr,
-			     &vmbus_addr);
-	    }
-	  unformat_free (&input_vmbus);
-	}
-
-      if (p)
-	{
-	  devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
-	  /* If device is blacklisted, we should skip it */
-	  if (devconf->is_blacklisted)
-	    {
-	      continue;
-	    }
+	  dpdk_log_notice ("[%d] Device %s blacklisted. Skipping...", port_id,
+			   di.driver_name);
+	  continue;
 	}
-      else
-	devconf = &dm->conf->default_devconf;
 
-      /* Create vnet interface */
       vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
-      xd->cpu_socket = (i8) rte_eth_dev_socket_id (port_id);
+      xd->port_id = port_id;
+      xd->device_index = xd - dm->devices;
+      xd->per_interface_next_index = ~0;
+
       clib_memcpy (&xd->conf, &dm->default_port_conf,
 		   sizeof (dpdk_port_conf_t));
 
-      if (p)
+      /* find driver datea for this PMD */
+      if ((dr = dpdk_driver_find (di.driver_name, &xd->if_desc)))
 	{
-	  xd->name = devconf->name;
+	  xd->driver = dr;
+	  xd->supported_flow_actions = dr->supported_flow_actions;
+	  xd->conf.disable_rss = dr->mq_mode_none;
+	  xd->conf.disable_rx_scatter = dr->disable_rx_scatter;
+	  if (dr->use_intel_phdr_cksum)
+	    dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM, 1);
+	  if (dr->int_unmaskable)
+	    dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_INT_UNMASKABLE, 1);
 	}
+      else
+	dpdk_log_warn ("[%u] unknown driver '%s'", port_id, di.driver_name);
 
-      /* Handle representor devices that share the same PCI ID */
-      if (di.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
+      if (devconf->name)
 	{
-	  if (di.switch_info.port_id != (uint16_t) -1)
-	    xd->interface_name_suffix =
-	      format (0, "%d", di.switch_info.port_id);
+	  xd->name = devconf->name;
 	}
-      /* Handle interface naming for devices with multiple ports sharing same
-       * PCI ID */
-      else if (pci_dev && ((next_port_id = rte_eth_find_next (port_id + 1)) !=
-			   RTE_MAX_ETHPORTS))
+      else
 	{
-	  struct rte_eth_dev_info next_di = { 0 };
-	  struct rte_pci_device *next_pci_dev;
-	  rte_eth_dev_info_get (next_port_id, &next_di);
-	  next_pci_dev = next_di.device ? RTE_DEV_TO_PCI (next_di.device) : 0;
-	  if (next_pci_dev && pci_addr.as_u32 != last_pci_addr.as_u32 &&
-	      memcmp (&pci_dev->addr, &next_pci_dev->addr,
-		      sizeof (struct rte_pci_addr)) == 0)
-	    {
-	      xd->interface_name_suffix = format (0, "0");
-	      last_pci_addr.as_u32 = pci_addr.as_u32;
-	      last_pci_addr_port = port_id;
-	    }
-	  else if (pci_addr.as_u32 == last_pci_addr.as_u32)
+	  struct rte_pci_device *pci_dev;
+	  if (dr && dr->interface_name_prefix)
 	    {
-	      xd->interface_name_suffix =
-		format (0, "%u", port_id - last_pci_addr_port);
+	      /* prefix override by driver */
+	      xd->name = format (xd->name, "%s", dr->interface_name_prefix);
 	    }
 	  else
 	    {
-	      last_pci_addr.as_u32 = ~0;
+	      /* interface name prefix from speed_capa */
+	      u64 mask = ~((if_name_prefixes[0].link_speed << 1) - 1);
+
+	      if (di.speed_capa & mask)
+		dpdk_log_warn ("[%u] unknown speed capability 0x%x reported",
+			       xd->port_id, di.speed_capa & mask);
+
+	      for (int i = 0; i < ARRAY_LEN (if_name_prefixes); i++)
+		if (if_name_prefixes[i].link_speed & di.speed_capa)
+		  {
+		    xd->name =
+		      format (xd->name, "%s", if_name_prefixes[i].pfx);
+		    break;
+		  }
+	      if (xd->name == 0)
+		xd->name = format (xd->name, "Ethernet");
 	    }
-	}
-      else
-	last_pci_addr.as_u32 = ~0;
 
-      if (devconf->max_lro_pkt_size)
-	xd->conf.max_lro_pkt_size = devconf->max_lro_pkt_size;
+	  if (dr && dr->interface_number_from_port_id)
+	    xd->name = format (xd->name, "%u", port_id);
+	  else if ((pci_dev = dpdk_get_pci_device (&di)))
+	    xd->name = format (xd->name, if_num_fmt, pci_dev->addr.bus,
+			       pci_dev->addr.devid, pci_dev->addr.function);
+	  else
+	    xd->name = format (xd->name, "%u", port_id);
+	}
 
-      xd->conf.n_tx_queues = clib_min (di.max_tx_queues, xd->conf.n_tx_queues);
+      /* Handle representor devices that share the same PCI ID */
+      if ((di.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) &&
+	  (di.switch_info.port_id != (uint16_t) -1))
+	xd->name = format (xd->name, "/%d", di.switch_info.port_id);
 
+      /* number of RX and TX queues */
       if (devconf->num_tx_queues > 0 &&
 	  devconf->num_tx_queues < xd->conf.n_tx_queues)
 	xd->conf.n_tx_queues = devconf->num_tx_queues;
@@ -348,184 +349,39 @@ dpdk_lib_init (dpdk_main_t * dm)
 	  xd->conf.rss_hf &= di.flow_type_rss_offloads;
 	}
 
+      /* number of RX and TX tescriptors */
       if (devconf->num_rx_desc)
 	xd->conf.n_rx_desc = devconf->num_rx_desc;
+      else if (dr && dr->n_rx_desc)
+	xd->conf.n_rx_desc = dr->n_rx_desc;
 
       if (devconf->num_tx_desc)
 	xd->conf.n_tx_desc = devconf->num_tx_desc;
+      else if (dr && dr->n_tx_desc)
+	xd->conf.n_tx_desc = dr->n_tx_desc;
 
       vec_validate_aligned (xd->rx_queues, xd->conf.n_rx_queues - 1,
 			    CLIB_CACHE_LINE_BYTES);
 
-      /* workaround for drivers not setting driver_name */
-      if ((!di.driver_name) && (pci_dev))
-	di.driver_name = pci_dev->driver->driver.name;
-
-      ASSERT (di.driver_name);
-
-      if (!xd->pmd)
-	{
-
-#define _(s, f)                                                               \
-  else if (di.driver_name && !strcmp (di.driver_name, s)) xd->pmd =           \
-    VNET_DPDK_PMD_##f;
-	  if (0)
-	    ;
-	  foreach_dpdk_pmd
-#undef _
-	    else xd->pmd = VNET_DPDK_PMD_UNKNOWN;
-
-	  xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
-
-	  switch (xd->pmd)
-	    {
-	      /* Drivers with valid speed_capa set */
-	    case VNET_DPDK_PMD_I40E:
-	      dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_INT_UNMASKABLE, 1);
-	      /* fall through */
-	    case VNET_DPDK_PMD_E1000EM:
-	    case VNET_DPDK_PMD_IGB:
-	    case VNET_DPDK_PMD_IGC:
-	    case VNET_DPDK_PMD_IXGBE:
-	    case VNET_DPDK_PMD_ICE:
-	      xd->supported_flow_actions =
-		VNET_FLOW_ACTION_MARK | VNET_FLOW_ACTION_REDIRECT_TO_NODE |
-		VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
-		VNET_FLOW_ACTION_BUFFER_ADVANCE | VNET_FLOW_ACTION_COUNT |
-		VNET_FLOW_ACTION_DROP | VNET_FLOW_ACTION_RSS;
-	      dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM, 1);
-	      xd->conf.enable_rxq_int = 1;
-	      /* fall through */
-	    case VNET_DPDK_PMD_MLX5:
-	    case VNET_DPDK_PMD_CXGBE:
-	    case VNET_DPDK_PMD_MLX4:
-	    case VNET_DPDK_PMD_QEDE:
-	    case VNET_DPDK_PMD_BNXT:
-	    case VNET_DPDK_PMD_ENIC:
-	      xd->port_type = port_type_from_speed_capa (&di);
-	      break;
-
-	      /* SR-IOV VFs */
-	    case VNET_DPDK_PMD_I40EVF:
-	      dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_INT_UNMASKABLE, 1);
-	      /* fall through */
-	    case VNET_DPDK_PMD_IGBVF:
-	    case VNET_DPDK_PMD_IXGBEVF:
-	      xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
-	      dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM, 1);
-	      /* DPDK bug in multiqueue... */
-	      /* xd->port_conf.intr_conf.rxq = 1; */
-	      break;
-
-	      /* iAVF */
-	    case VNET_DPDK_PMD_IAVF:
-	      dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_INT_UNMASKABLE, 1);
-	      dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM, 1);
-	      xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
-	      xd->supported_flow_actions =
-		VNET_FLOW_ACTION_MARK | VNET_FLOW_ACTION_REDIRECT_TO_NODE |
-		VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
-		VNET_FLOW_ACTION_BUFFER_ADVANCE | VNET_FLOW_ACTION_COUNT |
-		VNET_FLOW_ACTION_DROP | VNET_FLOW_ACTION_RSS;
-	      /* DPDK bug in multiqueue... */
-	      /* xd->port_conf.intr_conf.rxq = 1; */
-	      break;
-
-	    case VNET_DPDK_PMD_THUNDERX:
-	      xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
-	      break;
-
-	    case VNET_DPDK_PMD_ENA:
-	      xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
-	      xd->conf.disable_rx_scatter = 1;
-	      xd->conf.enable_rxq_int = 1;
-	      break;
-
-	    case VNET_DPDK_PMD_DPAA2:
-	      xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
-	      break;
-
-	      /* Intel Red Rock Canyon */
-	    case VNET_DPDK_PMD_FM10K:
-	      xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
-	      break;
-
-	      /* virtio */
-	    case VNET_DPDK_PMD_VIRTIO:
-	      xd->conf.disable_rss = 1;
-	      xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
-	      xd->conf.n_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
-	      xd->conf.n_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
-	      xd->conf.enable_rxq_int = 1;
-	      break;
-
-	      /* vmxnet3 */
-	    case VNET_DPDK_PMD_VMXNET3:
-	      xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
-	      break;
-
-	    case VNET_DPDK_PMD_AF_PACKET:
-	      xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
-	      break;
-
-	    case VNET_DPDK_PMD_VIRTIO_USER:
-	      xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
-	      break;
-
-	    case VNET_DPDK_PMD_VHOST_ETHER:
-	      xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
-	      break;
-
-	    case VNET_DPDK_PMD_LIOVF_ETHER:
-	      xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
-	      break;
-
-	    case VNET_DPDK_PMD_FAILSAFE:
-	      xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
-	      xd->conf.enable_lsc_int = 1;
-	      break;
-
-	    case VNET_DPDK_PMD_NETVSC:
-	      {
-		xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
-	      }
-	      break;
-
-	    default:
-	      xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
-	    }
-	}
-
-      if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
-	{
-	  f64 now = vlib_time_now (vm);
-	  u32 rnd;
-	  rnd = (u32) (now * 1e6);
-	  rnd = random_u32 (&rnd);
-	  clib_memcpy (addr + 2, &rnd, sizeof (rnd));
-	  addr[0] = 2;
-	  addr[1] = 0xfe;
-	}
-      else
-	rte_eth_macaddr_get (port_id, (void *) addr);
-
-      xd->port_id = port_id;
-      xd->device_index = xd - dm->devices;
-      xd->per_interface_next_index = ~0;
-
-      /* assign interface to input thread */
-      int q;
+      rte_eth_macaddr_get (port_id, (void *) addr);
 
+      /* create interface */
       eir.dev_class_index = dpdk_device_class.index;
       eir.dev_instance = xd->device_index;
       eir.address = addr;
       eir.cb.flag_change = dpdk_flag_change;
       xd->hw_if_index = vnet_eth_register_interface (vnm, &eir);
-
+      hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
+      hi->numa_node = xd->cpu_socket = (i8) rte_eth_dev_socket_id (port_id);
       sw = vnet_get_hw_sw_interface (vnm, xd->hw_if_index);
       xd->sw_if_index = sw->sw_if_index;
-      vnet_hw_if_set_input_node (vnm, xd->hw_if_index, dpdk_input_node.index);
+      dpdk_log_debug ("[%u] interface %s created", port_id, hi->name);
+
+      ethernet_set_flags (vnm, xd->hw_if_index,
+			  ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
 
+      /* assign worker threads */
+      vnet_hw_if_set_input_node (vnm, xd->hw_if_index, dpdk_input_node.index);
       if (devconf->workers)
 	{
 	  int j;
@@ -545,20 +401,6 @@ dpdk_lib_init (dpdk_main_t * dm)
 	      vnm, xd->hw_if_index, q, VNET_HW_IF_RXQ_THREAD_ANY);
 	  }
 
-
-      /*Get vnet hardware interface */
-      hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
-
-      if (hi)
-	{
-	  hi->numa_node = xd->cpu_socket;
-
-	  /* Indicate ability to support L3 DMAC filtering and
-	   * initialize interface to L3 non-promisc mode */
-	  ethernet_set_flags (vnm, xd->hw_if_index,
-			      ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
-	}
-
       if (devconf->tso == DPDK_DEVICE_TSO_ON)
 	{
 	  /*tcp_udp checksum must be enabled*/
@@ -571,21 +413,21 @@ dpdk_lib_init (dpdk_main_t * dm)
 	    xd->conf.enable_tso = 1;
 	}
 
+      if (devconf->max_lro_pkt_size)
+	xd->conf.max_lro_pkt_size = devconf->max_lro_pkt_size;
+
       dpdk_device_setup (xd);
 
       /* rss queues should be configured after dpdk_device_setup() */
-      if ((hi != NULL) && (devconf->rss_queues != NULL))
+      if (devconf->rss_queues)
 	{
 	  if (vnet_hw_interface_set_rss_queues (vnet_get_main (), hi,
 						devconf->rss_queues))
-	    {
-	      clib_warning ("%s: Failed to set rss queues", hi->name);
-	    }
+	    dpdk_log_warn ("[%u] Failed to set rss queues", port_id);
 	}
 
       if (vec_len (xd->errors))
-	dpdk_log_err ("setup failed for device %U. Errors:\n  %U",
-		      format_dpdk_device_name, port_id,
+	dpdk_log_err ("[%u] setup failed Errors:\n  %U", port_id,
 		      format_dpdk_device_errors, xd);
     }
 
@@ -944,7 +786,7 @@ dpdk_device_config (dpdk_config_main_t *conf, void *addr,
 	;
       else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
 	;
-      else if (unformat (input, "name %s", &devconf->name))
+      else if (unformat (input, "name %v", &devconf->name))
 	;
       else if (unformat (input, "workers %U", unformat_bitmap_list,
 			 &devconf->workers))