VNFs/DPPD-PROX/prox_port_cfg.c

   1 /*
   2 // Copyright (c) 2010-2017 Intel Corporation
   3 //
   4 // Licensed under the Apache License, Version 2.0 (the "License");
   5 // you may not use this file except in compliance with the License.
   6 // You may obtain a copy of the License at
   7 //
   8 //     http://www.apache.org/licenses/LICENSE-2.0
   9 //
  10 // Unless required by applicable law or agreed to in writing, software
  11 // distributed under the License is distributed on an "AS IS" BASIS,
  12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 // See the License for the specific language governing permissions and
  14 // limitations under the License.
  15 */
  16
  17 #include <string.h>
  18 #include <stdio.h>
  19 #include <rte_version.h>
  20 #include <rte_eth_ring.h>
  21 #include <rte_mbuf.h>
  22 #if (RTE_VERSION >= RTE_VERSION_NUM(17,11,0,0))
  23 #include <rte_bus_vdev.h>
  24 #else
  25 #if (RTE_VERSION > RTE_VERSION_NUM(17,5,0,2))
  26 #include <rte_dev.h>
  27 #else
  28 #if (RTE_VERSION >= RTE_VERSION_NUM(2,1,0,0))
  29 #include <rte_eth_null.h>
  30 #endif
  31 #endif
  32 #endif
  33
  34 #include "prox_port_cfg.h"
  35 #include "prox_globals.h"
  36 #include "log.h"
  37 #include "quit.h"
  38 #include "defaults.h"
  39 #include "toeplitz.h"
  40 #include "defines.h"
  41 #include "prox_cksum.h"
  42 #include "stats_irq.h"
  43 #include "prox_compat.h"
  44
  45 struct prox_port_cfg prox_port_cfg[PROX_MAX_PORTS];
  46 rte_atomic32_t lsc;
  47
  48 int prox_nb_active_ports(void)
  49 {
  50         int ret = 0;
  51         for (uint32_t i = 0; i < PROX_MAX_PORTS; ++i) {
  52                 ret += prox_port_cfg[i].active;
  53         }
  54         return ret;
  55 }
  56
  57 int prox_last_port_active(void)
  58 {
  59         int ret = -1;
  60         for (uint32_t i = 0; i < PROX_MAX_PORTS; ++i) {
  61                 if (prox_port_cfg[i].active) {
  62                         ret = i;
  63                 }
  64         }
  65         return ret;
  66 }
  67
  68 #if RTE_VERSION >= RTE_VERSION_NUM(17,11,0,0)
  69 static int lsc_cb(__attribute__((unused)) uint16_t port_id, enum rte_eth_event_type type, __attribute__((unused)) void *param,
  70         __attribute__((unused)) void *ret_param)
  71 #else
  72 #if RTE_VERSION >= RTE_VERSION_NUM(17,8,0,1)
  73 static int lsc_cb(__attribute__((unused)) uint8_t port_id, enum rte_eth_event_type type, __attribute__((unused)) void *param,
  74         __attribute__((unused)) void *ret_param)
  75 #else
  76 static void lsc_cb(__attribute__((unused)) uint8_t port_id, enum rte_eth_event_type type, __attribute__((unused)) void *param)
  77 #endif
  78 #endif
  79 {
  80         if (RTE_ETH_EVENT_INTR_LSC != type) {
  81 #if RTE_VERSION >= RTE_VERSION_NUM(17,8,0,1)
  82                 return -1;
  83 #else
  84                 return;
  85 #endif
  86         }
  87
  88         rte_atomic32_inc(&lsc);
  89
  90 #if RTE_VERSION >= RTE_VERSION_NUM(17,8,0,1)
  91         return 0;
  92 #endif
  93 }
  94
  95 struct prox_pktmbuf_reinit_args {
  96         struct rte_mempool *mp;
  97         struct lcore_cfg   *lconf;
  98 };
  99
 100 /* standard mbuf initialization procedure */
 101 void prox_pktmbuf_init(struct rte_mempool *mp, void *opaque_arg, void *_m, unsigned i)
 102 {
 103         struct rte_mbuf *mbuf = _m;
 104
 105 #if RTE_VERSION >= RTE_VERSION_NUM(1,8,0,0)
 106         mbuf->tx_offload = CALC_TX_OL(sizeof(struct ether_hdr), sizeof(struct ipv4_hdr));
 107 #else
 108         mbuf->pkt.vlan_macip.f.l2_len = sizeof(struct ether_hdr);
 109         mbuf->pkt.vlan_macip.f.l3_len = sizeof(struct ipv4_hdr);
 110 #endif
 111
 112         rte_pktmbuf_init(mp, opaque_arg, mbuf, i);
 113 }
 114
 115 void prox_pktmbuf_reinit(void *arg, void *start, __attribute__((unused)) void *end, uint32_t idx)
 116 {
 117         struct prox_pktmbuf_reinit_args *init_args = arg;
 118         struct rte_mbuf *m;
 119         char* obj = start;
 120
 121         obj += init_args->mp->header_size;
 122         m = (struct rte_mbuf*)obj;
 123
 124         prox_pktmbuf_init(init_args->mp, init_args->lconf, obj, idx);
 125 }
 126
 127 #define CONFIGURE_TX_OFFLOAD(flag)                                           \
 128         if (port_cfg->requested_tx_offload & flag)                              {\
 129                 if (port_cfg->disabled_tx_offload & flag)                       {\
 130                         plog_info("\t\t%s disabled by configuration\n", #flag);\
 131                         port_cfg->requested_tx_offload &= ~flag;\
 132                 } else if (port_cfg->dev_info.tx_offload_capa & flag) {\
 133                         port_cfg->port_conf.txmode.offloads |= flag;\
 134                         plog_info("\t\t%s enabled on port\n", #flag);\
 135                 } else if (port_cfg->dev_info.tx_queue_offload_capa & flag) {\
 136                         port_cfg->tx_conf.offloads |= flag;\
 137                         plog_info("\t\t%s enabled on queue\n", #flag);\
 138                 } else {\
 139                         port_cfg->requested_tx_offload &= ~flag;\
 140                         plog_info("\t\t%s disabled as neither port or queue supports it\n", #flag);\
 141                 }\
 142         } else {\
 143                 plog_info("\t\t%s disabled\n", #flag);\
 144         }\
 145
 146 #define CONFIGURE_RX_OFFLOAD(flag)                                           \
 147         if (port_cfg->requested_rx_offload & flag)                              {\
 148                 if (port_cfg->dev_info.rx_offload_capa & flag) {\
 149                         port_cfg->port_conf.rxmode.offloads |= flag;\
 150                         plog_info("\t\t%s enabled on port\n", #flag);\
 151                 } else if (port_cfg->dev_info.rx_queue_offload_capa & flag) {\
 152                         port_cfg->rx_conf.offloads |= flag;\
 153                         plog_info("\t\t%s enabled on queue\n", #flag);\
 154                 } else {\
 155                         port_cfg->requested_rx_offload &= ~flag;\
 156                         plog_info("\t\t%s disabled as neither port or queue supports it\n", #flag);\
 157                 }\
 158         } else {\
 159                 plog_info("\t\t%s disabled\n", #flag);\
 160         }\
 161
 162
 163 /* initialize rte devices and check the number of available ports */
 164 void init_rte_dev(int use_dummy_devices)
 165 {
 166         uint8_t nb_ports, port_id_max;
 167         int port_id_last;
 168         struct rte_eth_dev_info dev_info;
 169         const struct rte_pci_device *pci_dev;
 170
 171         nb_ports = rte_eth_dev_count();
 172         /* get available ports configuration */
 173         PROX_PANIC(use_dummy_devices && nb_ports, "Can't use dummy devices while there are also real ports\n");
 174
 175         if (use_dummy_devices) {
 176 #if (RTE_VERSION >= RTE_VERSION_NUM(2,1,0,0))
 177                 nb_ports = prox_last_port_active() + 1;
 178                 plog_info("Creating %u dummy devices\n", nb_ports);
 179
 180                 char port_name[32] = "0dummy_dev";
 181                 for (uint32_t i = 0; i < nb_ports; ++i) {
 182 #if (RTE_VERSION > RTE_VERSION_NUM(17,5,0,1))
 183                         rte_vdev_init(port_name, "size=ETHER_MIN_LEN,copy=0");
 184 #else
 185                         eth_dev_null_create(port_name, 0, ETHER_MIN_LEN, 0);
 186 #endif
 187                         port_name[0]++;
 188                 }
 189 #else
 190         PROX_PANIC(use_dummy_devices, "Can't use dummy devices\n");
 191 #endif
 192         }
 193         else if (prox_last_port_active() != -1) {
 194                 PROX_PANIC(nb_ports == 0, "\tError: DPDK could not find any port\n");
 195                 plog_info("\tDPDK has found %u ports\n", nb_ports);
 196         }
 197
 198         if (nb_ports > PROX_MAX_PORTS) {
 199                 plog_warn("\tWarning: I can deal with at most %u ports."
 200                         " Please update PROX_MAX_PORTS and recompile.\n", PROX_MAX_PORTS);
 201
 202                 nb_ports = PROX_MAX_PORTS;
 203         }
 204         port_id_max = nb_ports - 1;
 205         port_id_last = prox_last_port_active();
 206         PROX_PANIC(port_id_last > port_id_max,
 207                    "\tError: invalid port(s) specified, last port index active: %d (max index is %d)\n",
 208                    port_id_last, port_id_max);
 209
 210         /* Assign ports to PROX interfaces & Read max RX/TX queues per port */
 211         for (uint8_t port_id = 0; port_id < nb_ports; ++port_id) {
 212                 /* skip ports that are not enabled */
 213                 if (!prox_port_cfg[port_id].active) {
 214                         continue;
 215                 }
 216                 plog_info("\tGetting info for rte dev %u\n", port_id);
 217                 rte_eth_dev_info_get(port_id, &dev_info);
 218                 struct prox_port_cfg* port_cfg = &prox_port_cfg[port_id];
 219                 port_cfg->socket = -1;
 220
 221                 memcpy(&port_cfg->dev_info, &dev_info, sizeof(struct rte_eth_dev_info));
 222                 port_cfg->max_txq = dev_info.max_tx_queues;
 223                 port_cfg->max_rxq = dev_info.max_rx_queues;
 224                 port_cfg->max_rx_pkt_len = dev_info.max_rx_pktlen;
 225                 port_cfg->min_rx_bufsize = dev_info.min_rx_bufsize;
 226
 227                 strncpy(port_cfg->driver_name, dev_info.driver_name, sizeof(port_cfg->driver_name));
 228                 plog_info("\tPort %u : driver='%s' tx_queues=%d rx_queues=%d\n", port_id, !strcmp(port_cfg->driver_name, "")? "null" : port_cfg->driver_name, port_cfg->max_txq, port_cfg->max_rxq);
 229
 230                 if (strncmp(port_cfg->driver_name, "rte_", 4) == 0) {
 231                         strncpy(port_cfg->short_name, prox_port_cfg[port_id].driver_name + 4, sizeof(port_cfg->short_name));
 232                 } else if (strncmp(port_cfg->driver_name, "net_", 4) == 0) {
 233                         strncpy(port_cfg->short_name, prox_port_cfg[port_id].driver_name + 4, sizeof(port_cfg->short_name));
 234                 } else {
 235                         strncpy(port_cfg->short_name, prox_port_cfg[port_id].driver_name, sizeof(port_cfg->short_name));
 236                 }
 237                 char *ptr;
 238                 if ((ptr = strstr(port_cfg->short_name, "_pmd")) != NULL) {
 239                         *ptr = '\x0';
 240                 }
 241
 242 #if RTE_VERSION < RTE_VERSION_NUM(18,5,0,0)
 243                 pci_dev = dev_info.pci_dev;
 244 #else
 245                 if (!dev_info.device)
 246                         continue;
 247                 pci_dev = RTE_DEV_TO_PCI(dev_info.device);
 248 #endif
 249                 if (!pci_dev)
 250                         continue;
 251
 252                 snprintf(port_cfg->pci_addr, sizeof(port_cfg->pci_addr),
 253                          "%04x:%02x:%02x.%1x", pci_dev->addr.domain, pci_dev->addr.bus, pci_dev->addr.devid, pci_dev->addr.function);
 254                 /* Try to find the device's numa node */
 255                 char buf[1024];
 256                 snprintf(buf, sizeof(buf), "/sys/bus/pci/devices/%s/numa_node", port_cfg->pci_addr);
 257                 FILE* numa_node_fd = fopen(buf, "r");
 258                 if (numa_node_fd) {
 259                         if (fgets(buf, sizeof(buf), numa_node_fd) == NULL) {
 260                                 plog_warn("Failed to read numa_node for device %s\n", port_cfg->pci_addr);
 261                         }
 262                         port_cfg->socket = strtol(buf, 0, 0);
 263                         if (port_cfg->socket == -1) {
 264                                 plog_warn("System did not report numa_node for device %s\n", port_cfg->pci_addr);
 265                         }
 266                         fclose(numa_node_fd);
 267                 }
 268
 269                 // In DPDK 18.08 vmxnet3 reports it supports IPV4 checksum, but packets does not go through when IPv4 cksum is enabled
 270                 if ((!strcmp(port_cfg->short_name, "vmxnet3")) && (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_IPV4_CKSUM)) {
 271                         plog_info("\t\tDisabling IPV4 cksum on vmxnet3\n");
 272                         port_cfg->disabled_tx_offload |= DEV_TX_OFFLOAD_IPV4_CKSUM;
 273                 }
 274                 if ((!strcmp(port_cfg->short_name, "vmxnet3")) && (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_UDP_CKSUM)) {
 275                         plog_info("\t\tDisabling UDP cksum on vmxnet3\n");
 276                         port_cfg->disabled_tx_offload |= DEV_TX_OFFLOAD_UDP_CKSUM;
 277                 }
 278         }
 279 }
 280
 281 /* Create rte ring-backed devices */
 282 uint8_t init_rte_ring_dev(void)
 283 {
 284         uint8_t nb_ring_dev = 0;
 285
 286         for (uint8_t port_id = 0; port_id < PROX_MAX_PORTS; ++port_id) {
 287                 /* skip ports that are not enabled */
 288                 if (!prox_port_cfg[port_id].active) {
 289                         continue;
 290                 }
 291                 struct prox_port_cfg* port_cfg = &prox_port_cfg[port_id];
 292                 if (port_cfg->rx_ring[0] != '\0') {
 293                         plog_info("\tRing-backed port %u: rx='%s' tx='%s'\n", port_id, port_cfg->rx_ring, port_cfg->tx_ring);
 294
 295                         struct rte_ring* rx_ring = rte_ring_lookup(port_cfg->rx_ring);
 296                         PROX_PANIC(rx_ring == NULL, "Ring %s not found for port %d!\n", port_cfg->rx_ring, port_id);
 297                         struct rte_ring* tx_ring = rte_ring_lookup(port_cfg->tx_ring);
 298                         PROX_PANIC(tx_ring == NULL, "Ring %s not found for port %d!\n", port_cfg->tx_ring, port_id);
 299
 300                         int ret = rte_eth_from_rings(port_cfg->name, &rx_ring, 1, &tx_ring, 1, rte_socket_id());
 301                         PROX_PANIC(ret != 0, "Failed to create eth_dev from rings for port %d\n", port_id);
 302
 303                         port_cfg->port_conf.intr_conf.lsc = 0; /* Link state interrupt not supported for ring-backed ports */
 304
 305                         nb_ring_dev++;
 306                 }
 307         }
 308
 309         return nb_ring_dev;
 310 }
 311
 312 static void print_port_capa(struct prox_port_cfg *port_cfg)
 313 {
 314         uint8_t port_id;
 315
 316         port_id = port_cfg - prox_port_cfg;
 317         plog_info("\t*** Initializing port %u ***\n", port_id);
 318         plog_info("\t\tPort name is set to %s\n", port_cfg->name);
 319         plog_info("\t\tPort max RX/TX queue is %u/%u\n", port_cfg->max_rxq, port_cfg->max_txq);
 320         plog_info("\t\tPort driver is %s\n", port_cfg->driver_name);
 321 #if RTE_VERSION >= RTE_VERSION_NUM(16,4,0,0)
 322         plog_info("\t\tSupported speed mask = 0x%x\n", port_cfg->dev_info.speed_capa);
 323 #endif
 324         if (port_cfg->max_link_speed != UINT32_MAX) {
 325                 plog_info("\t\tHighest link speed capa = %d Mbps\n", port_cfg->max_link_speed);
 326         }
 327
 328 #if RTE_VERSION >= RTE_VERSION_NUM(18,8,0,1)
 329         plog_info("\t\tRX offload capa = 0x%lx = ", port_cfg->dev_info.rx_offload_capa);
 330         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_VLAN_STRIP)
 331                 plog_info("VLAN STRIP | ");
 332         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
 333                 plog_info("IPV4 CKSUM | ");
 334         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_UDP_CKSUM)
 335                 plog_info("UDP CKSUM | ");
 336         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_CKSUM)
 337                 plog_info("TCP CKSUM | ");
 338         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_LRO)
 339                 plog_info("TCP LRO | ");
 340         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_QINQ_STRIP)
 341                 plog_info("QINQ STRIP | ");
 342         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM)
 343                 plog_info("OUTER_IPV4_CKSUM | ");
 344         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_MACSEC_STRIP)
 345                 plog_info("MACSEC STRIP | ");
 346         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_HEADER_SPLIT)
 347                 plog_info("HEADER SPLIT | ");
 348         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_VLAN_FILTER)
 349                 plog_info("VLAN FILTER | ");
 350         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_VLAN_EXTEND)
 351                 plog_info("VLAN EXTEND | ");
 352         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_JUMBO_FRAME)
 353                 plog_info("JUMBO FRAME | ");
 354         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_CRC_STRIP)
 355                 plog_info("CRC STRIP | ");
 356         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_SCATTER)
 357                 plog_info("SCATTER | ");
 358         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TIMESTAMP)
 359                 plog_info("TIMESTAMP | ");
 360         if (port_cfg->dev_info.rx_offload_capa & DEV_RX_OFFLOAD_SECURITY)
 361                 plog_info("SECURITY ");
 362         plog_info("\n");
 363
 364         plog_info("\t\tTX offload capa = 0x%lx = ", port_cfg->dev_info.tx_offload_capa);
 365         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_VLAN_INSERT)
 366                 plog_info("VLAN INSERT | ");
 367         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_IPV4_CKSUM)
 368                 plog_info("IPV4 CKSUM | ");
 369         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_UDP_CKSUM)
 370                 plog_info("UDP CKSUM | ");
 371         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_TCP_CKSUM)
 372                 plog_info("TCP CKSUM | ");
 373         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_SCTP_CKSUM)
 374                 plog_info("SCTP CKSUM | ");
 375         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_TCP_TSO)
 376                 plog_info("TCP TS0 | ");
 377         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_UDP_TSO)
 378                 plog_info("UDP TSO | ");
 379         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM)
 380                 plog_info("OUTER IPV4 CKSUM | ");
 381         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_QINQ_INSERT)
 382                 plog_info("QINQ INSERT | ");
 383         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_VXLAN_TNL_TSO)
 384                 plog_info("VLAN TNL TSO | ");
 385         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_GRE_TNL_TSO)
 386                 plog_info("GRE TNL TSO | ");
 387         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_IPIP_TNL_TSO)
 388                 plog_info("IPIP TNL TSO | ");
 389         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_GENEVE_TNL_TSO)
 390                 plog_info("GENEVE TNL TSO | ");
 391         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MACSEC_INSERT)
 392                 plog_info("MACSEC INSERT | ");
 393         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MT_LOCKFREE)
 394                 plog_info("MT LOCKFREE | ");
 395         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MULTI_SEGS)
 396                 plog_info("MULTI SEG | ");
 397         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_SECURITY)
 398                 plog_info("SECURITY | ");
 399         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_UDP_TNL_TSO)
 400                 plog_info("UDP TNL TSO | ");
 401         if (port_cfg->dev_info.tx_offload_capa & DEV_TX_OFFLOAD_IP_TNL_TSO)
 402                 plog_info("IP TNL TSO | ");
 403         plog_info("\n");
 404
 405         plog_info("\t\trx_queue_offload_capa = 0x%lx\n", port_cfg->dev_info.rx_queue_offload_capa);
 406         plog_info("\t\ttx_queue_offload_capa = 0x%lx\n", port_cfg->dev_info.tx_queue_offload_capa);
 407         plog_info("\t\tflow_type_rss_offloads = 0x%lx\n", port_cfg->dev_info.flow_type_rss_offloads);
 408         plog_info("\t\tdefault RX port conf: burst_size = %d, ring_size = %d, nb_queues = %d\n", port_cfg->dev_info.default_rxportconf.burst_size, port_cfg->dev_info.default_rxportconf.ring_size, port_cfg->dev_info.default_rxportconf.nb_queues);
 409         plog_info("\t\tdefault TX port conf: burst_size = %d, ring_size = %d, nb_queues = %d\n", port_cfg->dev_info.default_txportconf.burst_size, port_cfg->dev_info.default_txportconf.ring_size, port_cfg->dev_info.default_txportconf.nb_queues);
 410 #endif
 411 }
 412
 413 static void get_max_link_speed(struct prox_port_cfg *port_cfg)
 414 {
 415         port_cfg->max_link_speed = UINT32_MAX;
 416
 417 #if RTE_VERSION >= RTE_VERSION_NUM(16,4,0,0)
 418         // virtio and vmxnet3 reports fake max_link_speed
 419         if (strcmp(port_cfg->short_name, "vmxnet3") && strcmp(port_cfg->short_name, "virtio")) {
 420                 // Get link_speed from highest capability from the port
 421                 // This will be used by gen and lat for extrapolation purposes
 422                 // The negotiated link_speed (as reported by rte_eth_link_get
 423                 // or rte_eth_link_get_nowait) might be reported too late
 424                 // and might result in wrong exrapolation, and hence should not be used
 425                 // for extrapolation purposes
 426                 if (port_cfg->dev_info.speed_capa & ETH_LINK_SPEED_100G)
 427                         port_cfg->max_link_speed = ETH_SPEED_NUM_100G;
 428                 else if (port_cfg->dev_info.speed_capa & ETH_LINK_SPEED_56G)
 429                         port_cfg->max_link_speed = ETH_SPEED_NUM_56G;
 430                 else if (port_cfg->dev_info.speed_capa & ETH_LINK_SPEED_50G)
 431                         port_cfg->max_link_speed = ETH_SPEED_NUM_50G;
 432                 else if (port_cfg->dev_info.speed_capa & ETH_LINK_SPEED_40G)
 433                         port_cfg->max_link_speed = ETH_SPEED_NUM_40G;
 434                 else if (port_cfg->dev_info.speed_capa & ETH_LINK_SPEED_25G)
 435                         port_cfg->max_link_speed = ETH_SPEED_NUM_25G;
 436                 else if (port_cfg->dev_info.speed_capa & ETH_LINK_SPEED_20G)
 437                         port_cfg->max_link_speed = ETH_SPEED_NUM_20G;
 438                 else if (port_cfg->dev_info.speed_capa & ETH_LINK_SPEED_10G)
 439                         port_cfg->max_link_speed = ETH_SPEED_NUM_10G;
 440                 else if (port_cfg->dev_info.speed_capa & ETH_LINK_SPEED_5G)
 441                         port_cfg->max_link_speed = ETH_SPEED_NUM_5G;
 442                 else if (port_cfg->dev_info.speed_capa & ETH_LINK_SPEED_2_5G)
 443                         port_cfg->max_link_speed = ETH_SPEED_NUM_2_5G;
 444                 else if (port_cfg->dev_info.speed_capa & ETH_LINK_SPEED_1G)
 445                         port_cfg->max_link_speed = ETH_SPEED_NUM_1G;
 446                 else if (port_cfg->dev_info.speed_capa & (ETH_LINK_SPEED_100M_HD | ETH_LINK_SPEED_100M))
 447                         port_cfg->max_link_speed = ETH_SPEED_NUM_100M;
 448                 else if (port_cfg->dev_info.speed_capa & (ETH_LINK_SPEED_10M_HD | ETH_LINK_SPEED_10M))
 449                         port_cfg->max_link_speed = ETH_SPEED_NUM_10M;
 450
 451         }
 452 #endif
 453 }
 454
 455 static void init_port(struct prox_port_cfg *port_cfg)
 456 {
 457         static char dummy_pool_name[] = "0_dummy";
 458         struct rte_eth_link link;
 459         uint8_t port_id;
 460         int ret;
 461
 462         get_max_link_speed(port_cfg);
 463         print_port_capa(port_cfg);
 464         port_id = port_cfg - prox_port_cfg;
 465         PROX_PANIC(port_cfg->n_rxq == 0 && port_cfg->n_txq == 0,
 466                    "\t\t port %u is enabled but no RX or TX queues have been configured", port_id);
 467
 468         if (port_cfg->n_rxq == 0) {
 469                 /* not receiving on this port */
 470                 plog_info("\t\tPort %u had no RX queues, setting to 1\n", port_id);
 471                 port_cfg->n_rxq = 1;
 472                 uint32_t mbuf_size = TX_MBUF_SIZE;
 473                 plog_info("\t\tAllocating dummy memory pool on socket %u with %u elements of size %u\n",
 474                           port_cfg->socket, port_cfg->n_rxd, mbuf_size);
 475                 port_cfg->pool[0] = rte_mempool_create(dummy_pool_name, port_cfg->n_rxd, mbuf_size,
 476                                                        0,
 477                                                        sizeof(struct rte_pktmbuf_pool_private),
 478                                                        rte_pktmbuf_pool_init, NULL,
 479                                                        prox_pktmbuf_init, 0,
 480                                                        port_cfg->socket, 0);
 481                 PROX_PANIC(port_cfg->pool[0] == NULL, "Failed to allocate dummy memory pool on socket %u with %u elements\n",
 482                            port_cfg->socket, port_cfg->n_rxd);
 483                 dummy_pool_name[0]++;
 484         } else {
 485                 // Most pmd should now support setting mtu
 486                 if (port_cfg->mtu + ETHER_HDR_LEN + ETHER_CRC_LEN > port_cfg->max_rx_pkt_len) {
 487                         plog_info("\t\tMTU is too big for the port, reducing MTU from %d to %d\n", port_cfg->mtu, port_cfg->max_rx_pkt_len);
 488                         port_cfg->mtu = port_cfg->max_rx_pkt_len;
 489                 }
 490                 plog_info("\t\tSetting MTU size to %u for port %u ...\n", port_cfg->mtu, port_id);
 491                 ret = rte_eth_dev_set_mtu(port_id, port_cfg->mtu);
 492                 if (ret)
 493                         plog_err("\t\t\trte_eth_dev_set_mtu() failed on port %u: error %d\n", port_id, ret);
 494
 495                 if (port_cfg->n_txq == 0) {
 496                         /* not sending on this port */
 497                         plog_info("\t\tPort %u had no TX queues, setting to 1\n", port_id);
 498                         port_cfg->n_txq = 1;
 499                 }
 500         }
 501
 502         if (port_cfg->n_rxq > 1)  {
 503                 // Enable RSS if multiple receive queues
 504                 port_cfg->port_conf.rxmode.mq_mode                      |= ETH_MQ_RX_RSS;
 505                 port_cfg->port_conf.rx_adv_conf.rss_conf.rss_key        = toeplitz_init_key;
 506                 port_cfg->port_conf.rx_adv_conf.rss_conf.rss_key_len    = TOEPLITZ_KEY_LEN;
 507 #if RTE_VERSION >= RTE_VERSION_NUM(2,0,0,0)
 508                 port_cfg->port_conf.rx_adv_conf.rss_conf.rss_hf         = ETH_RSS_IP|ETH_RSS_UDP;
 509 #else
 510                 port_cfg->port_conf.rx_adv_conf.rss_conf.rss_hf         = ETH_RSS_IPV4|ETH_RSS_NONF_IPV4_UDP;
 511 #endif
 512         }
 513
 514         // Make sure that the requested RSS offload is supported by the PMD
 515 #if RTE_VERSION >= RTE_VERSION_NUM(2,0,0,0)
 516         port_cfg->port_conf.rx_adv_conf.rss_conf.rss_hf &= port_cfg->dev_info.flow_type_rss_offloads;
 517 #endif
 518         plog_info("\t\t Enabling RSS rss_hf = 0x%lx (requested 0x%llx)\n", port_cfg->port_conf.rx_adv_conf.rss_conf.rss_hf, ETH_RSS_IP|ETH_RSS_UDP);
 519
 520         // rxmode such as hw src strip
 521 #if RTE_VERSION >= RTE_VERSION_NUM(18,8,0,1)
 522         CONFIGURE_RX_OFFLOAD(DEV_RX_OFFLOAD_CRC_STRIP);
 523         CONFIGURE_RX_OFFLOAD(DEV_RX_OFFLOAD_JUMBO_FRAME);
 524         CONFIGURE_RX_OFFLOAD(DEV_RX_OFFLOAD_VLAN_STRIP);
 525 #else
 526         if (port_cfg->requested_rx_offload & DEV_RX_OFFLOAD_CRC_STRIP) {
 527                 port_cfg->port_conf.rxmode.hw_strip_crc = 1;
 528         }
 529         if (port_cfg->requested_rx_offload & DEV_RX_OFFLOAD_JUMBO_FRAME) {
 530                 port_cfg->port_conf.rxmode.jumbo_frame = 1;
 531         }
 532 #endif
 533
 534         // IPV4, UDP, SCTP Checksums
 535 #if RTE_VERSION >= RTE_VERSION_NUM(18,8,0,1)
 536         CONFIGURE_TX_OFFLOAD(DEV_TX_OFFLOAD_IPV4_CKSUM);
 537         CONFIGURE_TX_OFFLOAD(DEV_TX_OFFLOAD_UDP_CKSUM);
 538         CONFIGURE_TX_OFFLOAD(DEV_TX_OFFLOAD_VLAN_INSERT);
 539 #else
 540         if ((port_cfg->dev_info.tx_offload_capa & (DEV_TX_OFFLOAD_IPV4_CKSUM | DEV_TX_OFFLOAD_UDP_CKSUM)) == 0) {
 541                 port_cfg->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOOFFLOADS;
 542                 plog_info("\t\tDisabling TX offloads as pmd reports that it does not support them)\n");
 543         }
 544         if (!strcmp(port_cfg->short_name, "vmxnet3")) {
 545                 port_cfg->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOXSUMSCTP;
 546                 plog_info("\t\tDisabling SCTP offload on port %d as vmxnet3 does not support them\n", port_id);
 547         }
 548 #endif
 549         // Multi Segments
 550 #if RTE_VERSION >= RTE_VERSION_NUM(18,8,0,1)
 551         CONFIGURE_TX_OFFLOAD(DEV_TX_OFFLOAD_MULTI_SEGS);
 552 #else
 553         if (!strcmp(port_cfg->short_name, "vmxnet3")) {
 554                 port_cfg->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 555                 plog_info("\t\tDisabling TX multsegs on port %d as vmxnet3 does not support them\n", port_id);
 556         } else if (port_cfg->tx_conf.txq_flags & ETH_TXQ_FLAGS_NOMULTSEGS)
 557                 plog_info("\t\tDisabling TX multsegs on port %d\n", port_id);
 558         else
 559                 plog_info("\t\tEnabling TX multsegs on port %d\n", port_id);
 560
 561         if (port_cfg->tx_conf.txq_flags & ETH_TXQ_FLAGS_NOOFFLOADS)
 562                 plog_info("\t\tEnabling No TX offloads on port %d\n", port_id);
 563         else
 564                 plog_info("\t\tTX offloads enabled on port %d\n", port_id);
 565 #endif
 566
 567         // Refcount
 568 #if RTE_VERSION >= RTE_VERSION_NUM(18,8,0,1)
 569         CONFIGURE_TX_OFFLOAD(DEV_TX_OFFLOAD_MBUF_FAST_FREE);
 570 #else
 571         if (port_cfg->tx_conf.txq_flags & ETH_TXQ_FLAGS_NOREFCOUNT)
 572                 plog_info("\t\tEnabling No refcnt on port %d\n", port_id);
 573         else
 574                 plog_info("\t\tRefcnt enabled on port %d\n", port_id);
 575 #endif
 576
 577         plog_info("\t\tConfiguring port %u... with %u RX queues and %u TX queues\n",
 578                   port_id, port_cfg->n_rxq, port_cfg->n_txq);
 579
 580         PROX_PANIC(port_cfg->n_rxq > port_cfg->max_rxq, "\t\t\tToo many RX queues (configuring %u, max is %u)\n", port_cfg->n_rxq, port_cfg->max_rxq);
 581         PROX_PANIC(port_cfg->n_txq > port_cfg->max_txq, "\t\t\tToo many TX queues (configuring %u, max is %u)\n", port_cfg->n_txq, port_cfg->max_txq);
 582
 583         if (!strcmp(port_cfg->short_name, "ixgbe_vf") ||
 584             !strcmp(port_cfg->short_name, "virtio") ||
 585 #if RTE_VERSION < RTE_VERSION_NUM(1,8,0,0)
 586             !strcmp(port_cfg->short_name, "i40e") ||
 587 #endif
 588             !strcmp(port_cfg->short_name, "i40e_vf") ||
 589             !strcmp(port_cfg->short_name, "avp") || /* Wind River */
 590             !strcmp(port_cfg->driver_name, "") || /* NULL device */
 591             !strcmp(port_cfg->short_name, "vmxnet3")) {
 592                 port_cfg->port_conf.intr_conf.lsc = 0;
 593                 plog_info("\t\tDisabling link state interrupt for vmxnet3/VF/virtio (unsupported)\n");
 594         }
 595
 596         if (port_cfg->lsc_set_explicitely) {
 597                 port_cfg->port_conf.intr_conf.lsc = port_cfg->lsc_val;
 598                 plog_info("\t\tOverriding link state interrupt configuration to '%s'\n", port_cfg->lsc_val? "enabled" : "disabled");
 599         }
 600         if (!strcmp(port_cfg->short_name, "vmxnet3")) {
 601                 if (port_cfg->n_txd < 512) {
 602                         // Vmxnet3 driver requires minimum 512 tx descriptors
 603                         plog_info("\t\tNumber of TX descriptors is set to 512 (minimum required for vmxnet3\n");
 604                         port_cfg->n_txd = 512;
 605                 }
 606         }
 607
 608         ret = rte_eth_dev_configure(port_id, port_cfg->n_rxq,
 609                                     port_cfg->n_txq, &port_cfg->port_conf);
 610         PROX_PANIC(ret < 0, "\t\t\trte_eth_dev_configure() failed on port %u: %s (%d)\n", port_id, strerror(-ret), ret);
 611
 612         if (port_cfg->port_conf.intr_conf.lsc) {
 613                 rte_eth_dev_callback_register(port_id, RTE_ETH_EVENT_INTR_LSC, lsc_cb, NULL);
 614         }
 615
 616         plog_info("\t\tMAC address set to "MAC_BYTES_FMT"\n", MAC_BYTES(port_cfg->eth_addr.addr_bytes));
 617
 618         /* initialize TX queues first */
 619         for (uint16_t queue_id = 0; queue_id < port_cfg->n_txq; ++queue_id) {
 620                 plog_info("\t\tSetting up TX queue %u on socket %u with %u desc\n",
 621                           queue_id, port_cfg->socket, port_cfg->n_txd);
 622                 ret = rte_eth_tx_queue_setup(port_id, queue_id, port_cfg->n_txd,
 623                                              port_cfg->socket, &port_cfg->tx_conf);
 624                 PROX_PANIC(ret < 0, "\t\t\trte_eth_tx_queue_setup() failed on port %u: error %d\n", port_id, ret);
 625         }
 626
 627         /* initialize RX queues */
 628         for (uint16_t queue_id = 0; queue_id < port_cfg->n_rxq; ++queue_id) {
 629                 plog_info("\t\tSetting up RX queue %u on port %u on socket %u with %u desc (pool 0x%p)\n",
 630                           queue_id, port_id, port_cfg->socket,
 631                           port_cfg->n_rxd, port_cfg->pool[queue_id]);
 632                 ret = rte_eth_rx_queue_setup(port_id, queue_id,
 633                                              port_cfg->n_rxd,
 634                                              port_cfg->socket, &port_cfg->rx_conf,
 635                                              port_cfg->pool[queue_id]);
 636                 PROX_PANIC(ret < 0, "\t\t\trte_eth_rx_queue_setup() failed on port %u: error %s (%d)\n", port_id, strerror(-ret), ret);
 637         }
 638
 639         plog_info("\t\tStarting up port %u ...", port_id);
 640         ret = rte_eth_dev_start(port_id);
 641
 642         PROX_PANIC(ret < 0, "\n\t\t\trte_eth_dev_start() failed on port %u: error %d\n", port_id, ret);
 643         plog_info(" done: ");
 644
 645         /* Getting link status can be done without waiting if Link
 646            State Interrupt is enabled since in that case, if the link
 647            is recognized as being down, an interrupt will notify that
 648            it has gone up. */
 649         if (port_cfg->port_conf.intr_conf.lsc)
 650                 rte_eth_link_get_nowait(port_id, &link);
 651         else
 652                 rte_eth_link_get(port_id, &link);
 653
 654         port_cfg->link_up = link.link_status;
 655         port_cfg->link_speed = link.link_speed;
 656
 657         if (link.link_status) {
 658                 plog_info("Link Up - speed %'u Mbps - %s\n",
 659                           link.link_speed,
 660                           (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 661                           "full-duplex" : "half-duplex");
 662         }
 663         else {
 664                 plog_info("Link Down\n");
 665         }
 666
 667         if (port_cfg->promiscuous) {
 668                 rte_eth_promiscuous_enable(port_id);
 669                 plog_info("\t\tport %u in promiscuous mode\n", port_id);
 670         }
 671
 672         if (strcmp(port_cfg->short_name, "ixgbe_vf") &&
 673             strcmp(port_cfg->short_name, "i40e") &&
 674             strcmp(port_cfg->short_name, "i40e_vf") &&
 675             strcmp(port_cfg->short_name, "vmxnet3")) {
 676                 for (uint8_t i = 0; i < 16; ++i) {
 677                         ret = rte_eth_dev_set_rx_queue_stats_mapping(port_id, i, i);
 678                         if (ret) {
 679                                 plog_info("\t\trte_eth_dev_set_rx_queue_stats_mapping() failed: error %d\n", ret);
 680                         }
 681                         ret = rte_eth_dev_set_tx_queue_stats_mapping(port_id, i, i);
 682                         if (ret) {
 683                                 plog_info("\t\trte_eth_dev_set_tx_queue_stats_mapping() failed: error %d\n", ret);
 684                         }
 685                 }
 686         }
 687 }
 688
 689 void init_port_all(void)
 690 {
 691         uint8_t max_port_idx = prox_last_port_active() + 1;
 692
 693         for (uint8_t portid = 0; portid < max_port_idx; ++portid) {
 694                 if (!prox_port_cfg[portid].active) {
 695                         continue;
 696                 }
 697                 init_port(&prox_port_cfg[portid]);
 698         }
 699 }
 700
 701 void close_ports_atexit(void)
 702 {
 703         uint8_t max_port_idx = prox_last_port_active() + 1;
 704
 705         for (uint8_t portid = 0; portid < max_port_idx; ++portid) {
 706                 if (!prox_port_cfg[portid].active) {
 707                         continue;
 708                 }
 709                 rte_eth_dev_close(portid);
 710         }
 711 }
 712
 713 void init_port_addr(void)
 714 {
 715         struct prox_port_cfg *port_cfg;
 716
 717         for (uint8_t port_id = 0; port_id < PROX_MAX_PORTS; ++port_id) {
 718                 if (!prox_port_cfg[port_id].active) {
 719                         continue;
 720                 }
 721                 port_cfg = &prox_port_cfg[port_id];
 722
 723                 switch (port_cfg->type) {
 724                 case PROX_PORT_MAC_HW:
 725                         rte_eth_macaddr_get(port_id, &port_cfg->eth_addr);
 726                         break;
 727                 case PROX_PORT_MAC_RAND:
 728                         eth_random_addr(port_cfg->eth_addr.addr_bytes);
 729                         break;
 730                 case PROX_PORT_MAC_SET:
 731                         break;
 732                 }
 733         }
 734 }
 735
 736 int port_is_active(uint8_t port_id)
 737 {
 738         if (port_id > PROX_MAX_PORTS) {
 739                 plog_info("requested port is higher than highest supported port ID (%u)\n", PROX_MAX_PORTS);
 740                 return 0;
 741         }
 742
 743         struct prox_port_cfg* port_cfg = &prox_port_cfg[port_id];
 744         if (!port_cfg->active) {
 745                 plog_info("Port %u is not active\n", port_id);
 746                 return 0;
 747         }
 748         return 1;
 749 }