MTU: Software interface / Per-protocol MTU support
[vpp.git] / src / plugins / dpdk / device / init.c
index b5a8e3b..461bae0 100644 (file)
@@ -227,7 +227,12 @@ dpdk_lib_init (dpdk_main_t * dm)
   vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
                        CLIB_CACHE_LINE_BYTES);
 
+#if RTE_VERSION < RTE_VERSION_NUM(18, 5, 0, 0)
   nports = rte_eth_dev_count ();
+#else
+  nports = rte_eth_dev_count_avail ();
+#endif
+
   if (nports < 1)
     {
       dpdk_log_notice ("DPDK drivers found no ports...");
@@ -260,19 +265,36 @@ dpdk_lib_init (dpdk_main_t * dm)
       u8 addr[6];
       u8 vlan_strip = 0;
       struct rte_eth_dev_info dev_info;
+      struct rte_pci_device *pci_dev;
       struct rte_eth_link l;
       dpdk_device_config_t *devconf = 0;
       vlib_pci_addr_t pci_addr;
       uword *p = 0;
 
+      if (!rte_eth_dev_is_valid_port(i))
+       continue;
+
       rte_eth_link_get_nowait (i, &l);
       rte_eth_dev_info_get (i, &dev_info);
-      if (dev_info.pci_dev)    /* bonded interface has no pci info */
+
+#if RTE_VERSION < RTE_VERSION_NUM(18, 5, 0, 0)
+      pci_dev = dev_info.pci_dev;
+#else
+      if (dev_info.device == 0)
+       {
+         clib_warning ("DPDK bug: missing device info. Skipping  %s device",
+                       dev_info.driver_name);
+         continue;
+       }
+      pci_dev = RTE_DEV_TO_PCI (dev_info.device);
+#endif
+
+      if (pci_dev)     /* bonded interface has no pci info */
        {
-         pci_addr.domain = dev_info.pci_dev->addr.domain;
-         pci_addr.bus = dev_info.pci_dev->addr.bus;
-         pci_addr.slot = dev_info.pci_dev->addr.devid;
-         pci_addr.function = dev_info.pci_dev->addr.function;
+         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);
@@ -290,12 +312,19 @@ dpdk_lib_init (dpdk_main_t * dm)
       xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
 
       /* Handle interface naming for devices with multiple ports sharing same PCI ID */
-      if (dev_info.pci_dev)
+      if (pci_dev)
        {
          struct rte_eth_dev_info di = { 0 };
+         struct rte_pci_device *next_pci_dev;
          rte_eth_dev_info_get (i + 1, &di);
-         if (di.pci_dev && pci_addr.as_u32 != last_pci_addr.as_u32 &&
-             memcmp (&dev_info.pci_dev->addr, &di.pci_dev->addr,
+#if RTE_VERSION < RTE_VERSION_NUM(18, 5, 0, 0)
+         next_pci_dev = di.pci_dev;
+#else
+         next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
+#endif
+         if (pci_dev && 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");
@@ -358,8 +387,8 @@ dpdk_lib_init (dpdk_main_t * dm)
       xd->flags |= DPDK_DEVICE_FLAG_PMD;
 
       /* workaround for drivers not setting driver_name */
-      if ((!dev_info.driver_name) && (dev_info.pci_dev))
-       dev_info.driver_name = dev_info.pci_dev->driver->driver.name;
+      if ((!dev_info.driver_name) && (pci_dev))
+       dev_info.driver_name = pci_dev->driver->driver.name;
 
       ASSERT (dev_info.driver_name);
 
@@ -481,6 +510,11 @@ dpdk_lib_init (dpdk_main_t * dm)
              xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
              break;
 
+           case VNET_DPDK_PMD_FAILSAFE:
+             xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
+             xd->port_conf.intr_conf.lsc = 1;
+             break;
+
            default:
              xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
            }
@@ -610,6 +644,26 @@ dpdk_lib_init (dpdk_main_t * dm)
                }
            }
        }
+
+      if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
+       {
+         /* failsafe device numerables are reported with active device only,
+          * need to query the mtu for current device setup to overwrite
+          * reported value.
+          */
+         uint16_t dev_mtu;
+         if (!rte_eth_dev_get_mtu (i, &dev_mtu))
+           {
+             mtu = dev_mtu;
+             max_rx_frame = mtu + sizeof (ethernet_header_t);
+
+             if (xd->port_conf.rxmode.hw_strip_crc)
+               {
+                 max_rx_frame += 4;
+               }
+           }
+       }
+
       /*Set port rxmode config */
       xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
 
@@ -693,8 +747,8 @@ dpdk_lib_init (dpdk_main_t * dm)
        }
 
       if (hi)
-       hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
-         xd->port_conf.rxmode.max_rx_pkt_len - sizeof (ethernet_header_t);
+       hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
+         - sizeof (ethernet_header_t);
       else
        clib_warning ("hi NULL");
 
@@ -1533,7 +1587,11 @@ dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
      *  2. Set up info and register slave link state change callback handling.
      *  3. Set up info for bond interface related CLI support.
      */
+#if RTE_VERSION < RTE_VERSION_NUM(18, 5, 0, 0)
     int nports = rte_eth_dev_count ();
+#else
+    int nports = rte_eth_dev_count_avail ();
+#endif
     if (nports > 0)
       {
        /* *INDENT-OFF* */
@@ -1582,9 +1640,6 @@ dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
 
                    /* Init l3 packet size allowed on bonded interface */
                    bhi->max_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
-                   bhi->max_l3_packet_bytes[VLIB_RX] =
-                     bhi->max_l3_packet_bytes[VLIB_TX] =
-                     ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
                    while (nlink >= 1)
                      {         /* for all slave links */
                        int slave = slink[--nlink];
@@ -1623,11 +1678,9 @@ dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
                        clib_memcpy (shi->hw_address, addr, 6);
                        clib_memcpy (sei->address, addr, 6);
                        /* Set l3 packet size allowed as the lowest of slave */
-                       if (bhi->max_l3_packet_bytes[VLIB_RX] >
-                           shi->max_l3_packet_bytes[VLIB_RX])
-                         bhi->max_l3_packet_bytes[VLIB_RX] =
-                           bhi->max_l3_packet_bytes[VLIB_TX] =
-                           shi->max_l3_packet_bytes[VLIB_RX];
+                       if (bhi->max_packet_bytes > shi->max_packet_bytes)
+                         bhi->max_packet_bytes = bhi->max_packet_bytes;
+
                        /* Set max packet size allowed as the lowest of slave */
                        if (bhi->max_packet_bytes > shi->max_packet_bytes)
                          bhi->max_packet_bytes = shi->max_packet_bytes;
@@ -1691,6 +1744,8 @@ dpdk_init (vlib_main_t * vm)
                 "Data in cache line 0 is bigger than cache line size");
   STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
                 "Cache line marker must be 1st element in frame_queue_trace_t");
+  STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
+                "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
 
   dm->vlib_main = vm;
   dm->vnet_main = vnet_get_main ();