drivers/net/cxgbe/cxgbe_ethdev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2014-2015 Chelsio Communications.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Chelsio Communications nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <sys/queue.h>
  35 #include <stdio.h>
  36 #include <errno.h>
  37 #include <stdint.h>
  38 #include <string.h>
  39 #include <unistd.h>
  40 #include <stdarg.h>
  41 #include <inttypes.h>
  42 #include <netinet/in.h>
  43
  44 #include <rte_byteorder.h>
  45 #include <rte_common.h>
  46 #include <rte_cycles.h>
  47 #include <rte_interrupts.h>
  48 #include <rte_log.h>
  49 #include <rte_debug.h>
  50 #include <rte_pci.h>
  51 #include <rte_atomic.h>
  52 #include <rte_branch_prediction.h>
  53 #include <rte_memory.h>
  54 #include <rte_memzone.h>
  55 #include <rte_tailq.h>
  56 #include <rte_eal.h>
  57 #include <rte_alarm.h>
  58 #include <rte_ether.h>
  59 #include <rte_ethdev.h>
  60 #include <rte_atomic.h>
  61 #include <rte_malloc.h>
  62 #include <rte_random.h>
  63 #include <rte_dev.h>
  64
  65 #include "cxgbe.h"
  66
  67 /*
  68  * Macros needed to support the PCI Device ID Table ...
  69  */
  70 #define CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN \
  71         static struct rte_pci_id cxgb4_pci_tbl[] = {
  72 #define CH_PCI_DEVICE_ID_FUNCTION 0x4
  73
  74 #define PCI_VENDOR_ID_CHELSIO 0x1425
  75
  76 #define CH_PCI_ID_TABLE_ENTRY(devid) \
  77                 { RTE_PCI_DEVICE(PCI_VENDOR_ID_CHELSIO, (devid)) }
  78
  79 #define CH_PCI_DEVICE_ID_TABLE_DEFINE_END \
  80                 { .vendor_id = 0, } \
  81         }
  82
  83 /*
  84  *... and the PCI ID Table itself ...
  85  */
  86 #include "t4_pci_id_tbl.h"
  87
  88 static uint16_t cxgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
  89                                 uint16_t nb_pkts)
  90 {
  91         struct sge_eth_txq *txq = (struct sge_eth_txq *)tx_queue;
  92         uint16_t pkts_sent, pkts_remain;
  93         uint16_t total_sent = 0;
  94         int ret = 0;
  95
  96         CXGBE_DEBUG_TX(adapter, "%s: txq = %p; tx_pkts = %p; nb_pkts = %d\n",
  97                        __func__, txq, tx_pkts, nb_pkts);
  98
  99         t4_os_lock(&txq->txq_lock);
 100         /* free up desc from already completed tx */
 101         reclaim_completed_tx(&txq->q);
 102         while (total_sent < nb_pkts) {
 103                 pkts_remain = nb_pkts - total_sent;
 104
 105                 for (pkts_sent = 0; pkts_sent < pkts_remain; pkts_sent++) {
 106                         ret = t4_eth_xmit(txq, tx_pkts[total_sent + pkts_sent]);
 107                         if (ret < 0)
 108                                 break;
 109                 }
 110                 if (!pkts_sent)
 111                         break;
 112                 total_sent += pkts_sent;
 113                 /* reclaim as much as possible */
 114                 reclaim_completed_tx(&txq->q);
 115         }
 116
 117         t4_os_unlock(&txq->txq_lock);
 118         return total_sent;
 119 }
 120
 121 static uint16_t cxgbe_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 122                                 uint16_t nb_pkts)
 123 {
 124         struct sge_eth_rxq *rxq = (struct sge_eth_rxq *)rx_queue;
 125         unsigned int work_done;
 126
 127         CXGBE_DEBUG_RX(adapter, "%s: rxq->rspq.cntxt_id = %u; nb_pkts = %d\n",
 128                        __func__, rxq->rspq.cntxt_id, nb_pkts);
 129
 130         if (cxgbe_poll(&rxq->rspq, rx_pkts, (unsigned int)nb_pkts, &work_done))
 131                 dev_err(adapter, "error in cxgbe poll\n");
 132
 133         CXGBE_DEBUG_RX(adapter, "%s: work_done = %u\n", __func__, work_done);
 134         return work_done;
 135 }
 136
 137 static void cxgbe_dev_info_get(struct rte_eth_dev *eth_dev,
 138                                struct rte_eth_dev_info *device_info)
 139 {
 140         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 141         struct adapter *adapter = pi->adapter;
 142         int max_queues = adapter->sge.max_ethqsets / adapter->params.nports;
 143
 144         device_info->min_rx_bufsize = CXGBE_MIN_RX_BUFSIZE;
 145         device_info->max_rx_pktlen = CXGBE_MAX_RX_PKTLEN;
 146         device_info->max_rx_queues = max_queues;
 147         device_info->max_tx_queues = max_queues;
 148         device_info->max_mac_addrs = 1;
 149         /* XXX: For now we support one MAC/port */
 150         device_info->max_vfs = adapter->params.arch.vfcount;
 151         device_info->max_vmdq_pools = 0; /* XXX: For now no support for VMDQ */
 152
 153         device_info->rx_offload_capa = DEV_RX_OFFLOAD_VLAN_STRIP |
 154                                        DEV_RX_OFFLOAD_IPV4_CKSUM |
 155                                        DEV_RX_OFFLOAD_UDP_CKSUM |
 156                                        DEV_RX_OFFLOAD_TCP_CKSUM;
 157
 158         device_info->tx_offload_capa = DEV_TX_OFFLOAD_VLAN_INSERT |
 159                                        DEV_TX_OFFLOAD_IPV4_CKSUM |
 160                                        DEV_TX_OFFLOAD_UDP_CKSUM |
 161                                        DEV_TX_OFFLOAD_TCP_CKSUM |
 162                                        DEV_TX_OFFLOAD_TCP_TSO;
 163
 164         device_info->reta_size = pi->rss_size;
 165 }
 166
 167 static void cxgbe_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
 168 {
 169         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 170         struct adapter *adapter = pi->adapter;
 171
 172         t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1,
 173                       1, -1, 1, -1, false);
 174 }
 175
 176 static void cxgbe_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
 177 {
 178         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 179         struct adapter *adapter = pi->adapter;
 180
 181         t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1,
 182                       0, -1, 1, -1, false);
 183 }
 184
 185 static void cxgbe_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
 186 {
 187         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 188         struct adapter *adapter = pi->adapter;
 189
 190         /* TODO: address filters ?? */
 191
 192         t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1,
 193                       -1, 1, 1, -1, false);
 194 }
 195
 196 static void cxgbe_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
 197 {
 198         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 199         struct adapter *adapter = pi->adapter;
 200
 201         /* TODO: address filters ?? */
 202
 203         t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1,
 204                       -1, 0, 1, -1, false);
 205 }
 206
 207 static int cxgbe_dev_link_update(struct rte_eth_dev *eth_dev,
 208                                  __rte_unused int wait_to_complete)
 209 {
 210         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 211         struct adapter *adapter = pi->adapter;
 212         struct sge *s = &adapter->sge;
 213         struct rte_eth_link *old_link = &eth_dev->data->dev_link;
 214         unsigned int work_done, budget = 4;
 215
 216         cxgbe_poll(&s->fw_evtq, NULL, budget, &work_done);
 217         if (old_link->link_status == pi->link_cfg.link_ok)
 218                 return -1;  /* link not changed */
 219
 220         eth_dev->data->dev_link.link_status = pi->link_cfg.link_ok;
 221         eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
 222         eth_dev->data->dev_link.link_speed = pi->link_cfg.speed;
 223
 224         /* link has changed */
 225         return 0;
 226 }
 227
 228 static int cxgbe_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
 229                                     uint16_t tx_queue_id);
 230 static int cxgbe_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
 231                                     uint16_t tx_queue_id);
 232 static void cxgbe_dev_tx_queue_release(void *q);
 233 static void cxgbe_dev_rx_queue_release(void *q);
 234
 235 /*
 236  * Stop device.
 237  */
 238 static void cxgbe_dev_close(struct rte_eth_dev *eth_dev)
 239 {
 240         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 241         struct adapter *adapter = pi->adapter;
 242         int i, dev_down = 0;
 243
 244         CXGBE_FUNC_TRACE();
 245
 246         if (!(adapter->flags & FULL_INIT_DONE))
 247                 return;
 248
 249         cxgbe_down(pi);
 250
 251         /*
 252          *  We clear queues only if both tx and rx path of the port
 253          *  have been disabled
 254          */
 255         t4_sge_eth_clear_queues(pi);
 256
 257         /*  See if all ports are down */
 258         for_each_port(adapter, i) {
 259                 pi = adap2pinfo(adapter, i);
 260                 /*
 261                  * Skip first port of the adapter since it will be closed
 262                  * by DPDK
 263                  */
 264                 if (i == 0)
 265                         continue;
 266                 dev_down += (pi->eth_dev->data->dev_started == 0) ? 1 : 0;
 267         }
 268
 269         /* If rest of the ports are stopped, then free up resources */
 270         if (dev_down == (adapter->params.nports - 1))
 271                 cxgbe_close(adapter);
 272 }
 273
 274 /* Start the device.
 275  * It returns 0 on success.
 276  */
 277 static int cxgbe_dev_start(struct rte_eth_dev *eth_dev)
 278 {
 279         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 280         struct adapter *adapter = pi->adapter;
 281         int err = 0, i;
 282
 283         CXGBE_FUNC_TRACE();
 284
 285         /*
 286          * If we don't have a connection to the firmware there's nothing we
 287          * can do.
 288          */
 289         if (!(adapter->flags & FW_OK)) {
 290                 err = -ENXIO;
 291                 goto out;
 292         }
 293
 294         if (!(adapter->flags & FULL_INIT_DONE)) {
 295                 err = cxgbe_up(adapter);
 296                 if (err < 0)
 297                         goto out;
 298         }
 299
 300         err = setup_rss(pi);
 301         if (err)
 302                 goto out;
 303
 304         for (i = 0; i < pi->n_tx_qsets; i++) {
 305                 err = cxgbe_dev_tx_queue_start(eth_dev, i);
 306                 if (err)
 307                         goto out;
 308         }
 309
 310         for (i = 0; i < pi->n_rx_qsets; i++) {
 311                 err = cxgbe_dev_rx_queue_start(eth_dev, i);
 312                 if (err)
 313                         goto out;
 314         }
 315
 316         err = link_start(pi);
 317         if (err)
 318                 goto out;
 319
 320 out:
 321         return err;
 322 }
 323
 324 /*
 325  * Stop device: disable rx and tx functions to allow for reconfiguring.
 326  */
 327 static void cxgbe_dev_stop(struct rte_eth_dev *eth_dev)
 328 {
 329         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 330         struct adapter *adapter = pi->adapter;
 331
 332         CXGBE_FUNC_TRACE();
 333
 334         if (!(adapter->flags & FULL_INIT_DONE))
 335                 return;
 336
 337         cxgbe_down(pi);
 338
 339         /*
 340          *  We clear queues only if both tx and rx path of the port
 341          *  have been disabled
 342          */
 343         t4_sge_eth_clear_queues(pi);
 344 }
 345
 346 static int cxgbe_dev_configure(struct rte_eth_dev *eth_dev)
 347 {
 348         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 349         struct adapter *adapter = pi->adapter;
 350         int err;
 351
 352         CXGBE_FUNC_TRACE();
 353
 354         if (!(adapter->flags & FW_QUEUE_BOUND)) {
 355                 err = setup_sge_fwevtq(adapter);
 356                 if (err)
 357                         return err;
 358                 adapter->flags |= FW_QUEUE_BOUND;
 359         }
 360
 361         err = cfg_queue_count(eth_dev);
 362         if (err)
 363                 return err;
 364
 365         return 0;
 366 }
 367
 368 static int cxgbe_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
 369                                     uint16_t tx_queue_id)
 370 {
 371         struct sge_eth_txq *txq = (struct sge_eth_txq *)
 372                                   (eth_dev->data->tx_queues[tx_queue_id]);
 373
 374         dev_debug(NULL, "%s: tx_queue_id = %d\n", __func__, tx_queue_id);
 375
 376         return t4_sge_eth_txq_start(txq);
 377 }
 378
 379 static int cxgbe_dev_tx_queue_stop(struct rte_eth_dev *eth_dev,
 380                                    uint16_t tx_queue_id)
 381 {
 382         struct sge_eth_txq *txq = (struct sge_eth_txq *)
 383                                   (eth_dev->data->tx_queues[tx_queue_id]);
 384
 385         dev_debug(NULL, "%s: tx_queue_id = %d\n", __func__, tx_queue_id);
 386
 387         return t4_sge_eth_txq_stop(txq);
 388 }
 389
 390 static int cxgbe_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
 391                                     uint16_t queue_idx, uint16_t nb_desc,
 392                                     unsigned int socket_id,
 393                                     const struct rte_eth_txconf *tx_conf)
 394 {
 395         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 396         struct adapter *adapter = pi->adapter;
 397         struct sge *s = &adapter->sge;
 398         struct sge_eth_txq *txq = &s->ethtxq[pi->first_qset + queue_idx];
 399         int err = 0;
 400         unsigned int temp_nb_desc;
 401
 402         RTE_SET_USED(tx_conf);
 403
 404         dev_debug(adapter, "%s: eth_dev->data->nb_tx_queues = %d; queue_idx = %d; nb_desc = %d; socket_id = %d; pi->first_qset = %u\n",
 405                   __func__, eth_dev->data->nb_tx_queues, queue_idx, nb_desc,
 406                   socket_id, pi->first_qset);
 407
 408         /*  Free up the existing queue  */
 409         if (eth_dev->data->tx_queues[queue_idx]) {
 410                 cxgbe_dev_tx_queue_release(eth_dev->data->tx_queues[queue_idx]);
 411                 eth_dev->data->tx_queues[queue_idx] = NULL;
 412         }
 413
 414         eth_dev->data->tx_queues[queue_idx] = (void *)txq;
 415
 416         /* Sanity Checking
 417          *
 418          * nb_desc should be > 1023 and <= CXGBE_MAX_RING_DESC_SIZE
 419          */
 420         temp_nb_desc = nb_desc;
 421         if (nb_desc < CXGBE_MIN_RING_DESC_SIZE) {
 422                 dev_warn(adapter, "%s: number of descriptors must be >= %d. Using default [%d]\n",
 423                          __func__, CXGBE_MIN_RING_DESC_SIZE,
 424                          CXGBE_DEFAULT_TX_DESC_SIZE);
 425                 temp_nb_desc = CXGBE_DEFAULT_TX_DESC_SIZE;
 426         } else if (nb_desc > CXGBE_MAX_RING_DESC_SIZE) {
 427                 dev_err(adapter, "%s: number of descriptors must be between %d and %d inclusive. Default [%d]\n",
 428                         __func__, CXGBE_MIN_RING_DESC_SIZE,
 429                         CXGBE_MAX_RING_DESC_SIZE, CXGBE_DEFAULT_TX_DESC_SIZE);
 430                 return -(EINVAL);
 431         }
 432
 433         txq->q.size = temp_nb_desc;
 434
 435         err = t4_sge_alloc_eth_txq(adapter, txq, eth_dev, queue_idx,
 436                                    s->fw_evtq.cntxt_id, socket_id);
 437
 438         dev_debug(adapter, "%s: txq->q.cntxt_id= %d err = %d\n",
 439                   __func__, txq->q.cntxt_id, err);
 440
 441         return err;
 442 }
 443
 444 static void cxgbe_dev_tx_queue_release(void *q)
 445 {
 446         struct sge_eth_txq *txq = (struct sge_eth_txq *)q;
 447
 448         if (txq) {
 449                 struct port_info *pi = (struct port_info *)
 450                                        (txq->eth_dev->data->dev_private);
 451                 struct adapter *adap = pi->adapter;
 452
 453                 dev_debug(adapter, "%s: pi->port_id = %d; tx_queue_id = %d\n",
 454                           __func__, pi->port_id, txq->q.cntxt_id);
 455
 456                 t4_sge_eth_txq_release(adap, txq);
 457         }
 458 }
 459
 460 static int cxgbe_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
 461                                     uint16_t rx_queue_id)
 462 {
 463         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 464         struct adapter *adap = pi->adapter;
 465         struct sge_rspq *q;
 466
 467         dev_debug(adapter, "%s: pi->port_id = %d; rx_queue_id = %d\n",
 468                   __func__, pi->port_id, rx_queue_id);
 469
 470         q = eth_dev->data->rx_queues[rx_queue_id];
 471         return t4_sge_eth_rxq_start(adap, q);
 472 }
 473
 474 static int cxgbe_dev_rx_queue_stop(struct rte_eth_dev *eth_dev,
 475                                    uint16_t rx_queue_id)
 476 {
 477         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 478         struct adapter *adap = pi->adapter;
 479         struct sge_rspq *q;
 480
 481         dev_debug(adapter, "%s: pi->port_id = %d; rx_queue_id = %d\n",
 482                   __func__, pi->port_id, rx_queue_id);
 483
 484         q = eth_dev->data->rx_queues[rx_queue_id];
 485         return t4_sge_eth_rxq_stop(adap, q);
 486 }
 487
 488 static int cxgbe_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
 489                                     uint16_t queue_idx, uint16_t nb_desc,
 490                                     unsigned int socket_id,
 491                                     const struct rte_eth_rxconf *rx_conf,
 492                                     struct rte_mempool *mp)
 493 {
 494         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 495         struct adapter *adapter = pi->adapter;
 496         struct sge *s = &adapter->sge;
 497         struct sge_eth_rxq *rxq = &s->ethrxq[pi->first_qset + queue_idx];
 498         int err = 0;
 499         int msi_idx = 0;
 500         unsigned int temp_nb_desc;
 501         struct rte_eth_dev_info dev_info;
 502         unsigned int pkt_len = eth_dev->data->dev_conf.rxmode.max_rx_pkt_len;
 503
 504         RTE_SET_USED(rx_conf);
 505
 506         dev_debug(adapter, "%s: eth_dev->data->nb_rx_queues = %d; queue_idx = %d; nb_desc = %d; socket_id = %d; mp = %p\n",
 507                   __func__, eth_dev->data->nb_rx_queues, queue_idx, nb_desc,
 508                   socket_id, mp);
 509
 510         cxgbe_dev_info_get(eth_dev, &dev_info);
 511
 512         /* Must accommodate at least ETHER_MIN_MTU */
 513         if ((pkt_len < dev_info.min_rx_bufsize) ||
 514             (pkt_len > dev_info.max_rx_pktlen)) {
 515                 dev_err(adap, "%s: max pkt len must be > %d and <= %d\n",
 516                         __func__, dev_info.min_rx_bufsize,
 517                         dev_info.max_rx_pktlen);
 518                 return -EINVAL;
 519         }
 520
 521         /*  Free up the existing queue  */
 522         if (eth_dev->data->rx_queues[queue_idx]) {
 523                 cxgbe_dev_rx_queue_release(eth_dev->data->rx_queues[queue_idx]);
 524                 eth_dev->data->rx_queues[queue_idx] = NULL;
 525         }
 526
 527         eth_dev->data->rx_queues[queue_idx] = (void *)rxq;
 528
 529         /* Sanity Checking
 530          *
 531          * nb_desc should be > 0 and <= CXGBE_MAX_RING_DESC_SIZE
 532          */
 533         temp_nb_desc = nb_desc;
 534         if (nb_desc < CXGBE_MIN_RING_DESC_SIZE) {
 535                 dev_warn(adapter, "%s: number of descriptors must be >= %d. Using default [%d]\n",
 536                          __func__, CXGBE_MIN_RING_DESC_SIZE,
 537                          CXGBE_DEFAULT_RX_DESC_SIZE);
 538                 temp_nb_desc = CXGBE_DEFAULT_RX_DESC_SIZE;
 539         } else if (nb_desc > CXGBE_MAX_RING_DESC_SIZE) {
 540                 dev_err(adapter, "%s: number of descriptors must be between %d and %d inclusive. Default [%d]\n",
 541                         __func__, CXGBE_MIN_RING_DESC_SIZE,
 542                         CXGBE_MAX_RING_DESC_SIZE, CXGBE_DEFAULT_RX_DESC_SIZE);
 543                 return -(EINVAL);
 544         }
 545
 546         rxq->rspq.size = temp_nb_desc;
 547         if ((&rxq->fl) != NULL)
 548                 rxq->fl.size = temp_nb_desc;
 549
 550         /* Set to jumbo mode if necessary */
 551         if (pkt_len > ETHER_MAX_LEN)
 552                 eth_dev->data->dev_conf.rxmode.jumbo_frame = 1;
 553         else
 554                 eth_dev->data->dev_conf.rxmode.jumbo_frame = 0;
 555
 556         err = t4_sge_alloc_rxq(adapter, &rxq->rspq, false, eth_dev, msi_idx,
 557                                &rxq->fl, t4_ethrx_handler,
 558                                t4_get_mps_bg_map(adapter, pi->tx_chan), mp,
 559                                queue_idx, socket_id);
 560
 561         dev_debug(adapter, "%s: err = %d; port_id = %d; cntxt_id = %u\n",
 562                   __func__, err, pi->port_id, rxq->rspq.cntxt_id);
 563         return err;
 564 }
 565
 566 static void cxgbe_dev_rx_queue_release(void *q)
 567 {
 568         struct sge_eth_rxq *rxq = (struct sge_eth_rxq *)q;
 569         struct sge_rspq *rq = &rxq->rspq;
 570
 571         if (rq) {
 572                 struct port_info *pi = (struct port_info *)
 573                                        (rq->eth_dev->data->dev_private);
 574                 struct adapter *adap = pi->adapter;
 575
 576                 dev_debug(adapter, "%s: pi->port_id = %d; rx_queue_id = %d\n",
 577                           __func__, pi->port_id, rxq->rspq.cntxt_id);
 578
 579                 t4_sge_eth_rxq_release(adap, rxq);
 580         }
 581 }
 582
 583 /*
 584  * Get port statistics.
 585  */
 586 static void cxgbe_dev_stats_get(struct rte_eth_dev *eth_dev,
 587                                 struct rte_eth_stats *eth_stats)
 588 {
 589         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 590         struct adapter *adapter = pi->adapter;
 591         struct sge *s = &adapter->sge;
 592         struct port_stats ps;
 593         unsigned int i;
 594
 595         cxgbe_stats_get(pi, &ps);
 596
 597         /* RX Stats */
 598         eth_stats->ipackets = ps.rx_frames;
 599         eth_stats->ibytes   = ps.rx_octets;
 600         eth_stats->imcasts  = ps.rx_mcast_frames;
 601         eth_stats->imissed  = ps.rx_ovflow0 + ps.rx_ovflow1 +
 602                               ps.rx_ovflow2 + ps.rx_ovflow3 +
 603                               ps.rx_trunc0 + ps.rx_trunc1 +
 604                               ps.rx_trunc2 + ps.rx_trunc3;
 605         eth_stats->ibadcrc  = ps.rx_fcs_err;
 606         eth_stats->ibadlen  = ps.rx_jabber + ps.rx_too_long + ps.rx_runt;
 607         eth_stats->ierrors  = ps.rx_symbol_err + eth_stats->ibadcrc +
 608                               eth_stats->ibadlen + ps.rx_len_err +
 609                               eth_stats->imissed;
 610         eth_stats->rx_pause_xon  = ps.rx_pause;
 611
 612         /* TX Stats */
 613         eth_stats->opackets = ps.tx_frames;
 614         eth_stats->obytes   = ps.tx_octets;
 615         eth_stats->oerrors  = ps.tx_error_frames;
 616         eth_stats->tx_pause_xon  = ps.tx_pause;
 617
 618         for (i = 0; i < pi->n_rx_qsets; i++) {
 619                 struct sge_eth_rxq *rxq =
 620                         &s->ethrxq[pi->first_qset + i];
 621
 622                 eth_stats->q_ipackets[i] = rxq->stats.pkts;
 623                 eth_stats->q_ibytes[i] = rxq->stats.rx_bytes;
 624         }
 625
 626         for (i = 0; i < pi->n_tx_qsets; i++) {
 627                 struct sge_eth_txq *txq =
 628                         &s->ethtxq[pi->first_qset + i];
 629
 630                 eth_stats->q_opackets[i] = txq->stats.pkts;
 631                 eth_stats->q_obytes[i] = txq->stats.tx_bytes;
 632                 eth_stats->q_errors[i] = txq->stats.mapping_err;
 633         }
 634 }
 635
 636 /*
 637  * Reset port statistics.
 638  */
 639 static void cxgbe_dev_stats_reset(struct rte_eth_dev *eth_dev)
 640 {
 641         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 642         struct adapter *adapter = pi->adapter;
 643         struct sge *s = &adapter->sge;
 644         unsigned int i;
 645
 646         cxgbe_stats_reset(pi);
 647         for (i = 0; i < pi->n_rx_qsets; i++) {
 648                 struct sge_eth_rxq *rxq =
 649                         &s->ethrxq[pi->first_qset + i];
 650
 651                 rxq->stats.pkts = 0;
 652                 rxq->stats.rx_bytes = 0;
 653         }
 654         for (i = 0; i < pi->n_tx_qsets; i++) {
 655                 struct sge_eth_txq *txq =
 656                         &s->ethtxq[pi->first_qset + i];
 657
 658                 txq->stats.pkts = 0;
 659                 txq->stats.tx_bytes = 0;
 660                 txq->stats.mapping_err = 0;
 661         }
 662 }
 663
 664 static int cxgbe_flow_ctrl_get(struct rte_eth_dev *eth_dev,
 665                                struct rte_eth_fc_conf *fc_conf)
 666 {
 667         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 668         struct link_config *lc = &pi->link_cfg;
 669         int rx_pause, tx_pause;
 670
 671         fc_conf->autoneg = lc->fc & PAUSE_AUTONEG;
 672         rx_pause = lc->fc & PAUSE_RX;
 673         tx_pause = lc->fc & PAUSE_TX;
 674
 675         if (rx_pause && tx_pause)
 676                 fc_conf->mode = RTE_FC_FULL;
 677         else if (rx_pause)
 678                 fc_conf->mode = RTE_FC_RX_PAUSE;
 679         else if (tx_pause)
 680                 fc_conf->mode = RTE_FC_TX_PAUSE;
 681         else
 682                 fc_conf->mode = RTE_FC_NONE;
 683         return 0;
 684 }
 685
 686 static int cxgbe_flow_ctrl_set(struct rte_eth_dev *eth_dev,
 687                                struct rte_eth_fc_conf *fc_conf)
 688 {
 689         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 690         struct adapter *adapter = pi->adapter;
 691         struct link_config *lc = &pi->link_cfg;
 692
 693         if (lc->supported & FW_PORT_CAP_ANEG) {
 694                 if (fc_conf->autoneg)
 695                         lc->requested_fc |= PAUSE_AUTONEG;
 696                 else
 697                         lc->requested_fc &= ~PAUSE_AUTONEG;
 698         }
 699
 700         if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) ||
 701             (fc_conf->mode & RTE_FC_RX_PAUSE))
 702                 lc->requested_fc |= PAUSE_RX;
 703         else
 704                 lc->requested_fc &= ~PAUSE_RX;
 705
 706         if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) ||
 707             (fc_conf->mode & RTE_FC_TX_PAUSE))
 708                 lc->requested_fc |= PAUSE_TX;
 709         else
 710                 lc->requested_fc &= ~PAUSE_TX;
 711
 712         return t4_link_l1cfg(adapter, adapter->mbox, pi->tx_chan,
 713                              &pi->link_cfg);
 714 }
 715
 716 static struct eth_dev_ops cxgbe_eth_dev_ops = {
 717         .dev_start              = cxgbe_dev_start,
 718         .dev_stop               = cxgbe_dev_stop,
 719         .dev_close              = cxgbe_dev_close,
 720         .promiscuous_enable     = cxgbe_dev_promiscuous_enable,
 721         .promiscuous_disable    = cxgbe_dev_promiscuous_disable,
 722         .allmulticast_enable    = cxgbe_dev_allmulticast_enable,
 723         .allmulticast_disable   = cxgbe_dev_allmulticast_disable,
 724         .dev_configure          = cxgbe_dev_configure,
 725         .dev_infos_get          = cxgbe_dev_info_get,
 726         .link_update            = cxgbe_dev_link_update,
 727         .tx_queue_setup         = cxgbe_dev_tx_queue_setup,
 728         .tx_queue_start         = cxgbe_dev_tx_queue_start,
 729         .tx_queue_stop          = cxgbe_dev_tx_queue_stop,
 730         .tx_queue_release       = cxgbe_dev_tx_queue_release,
 731         .rx_queue_setup         = cxgbe_dev_rx_queue_setup,
 732         .rx_queue_start         = cxgbe_dev_rx_queue_start,
 733         .rx_queue_stop          = cxgbe_dev_rx_queue_stop,
 734         .rx_queue_release       = cxgbe_dev_rx_queue_release,
 735         .stats_get              = cxgbe_dev_stats_get,
 736         .stats_reset            = cxgbe_dev_stats_reset,
 737         .flow_ctrl_get          = cxgbe_flow_ctrl_get,
 738         .flow_ctrl_set          = cxgbe_flow_ctrl_set,
 739 };
 740
 741 /*
 742  * Initialize driver
 743  * It returns 0 on success.
 744  */
 745 static int eth_cxgbe_dev_init(struct rte_eth_dev *eth_dev)
 746 {
 747         struct rte_pci_device *pci_dev;
 748         struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
 749         struct adapter *adapter = NULL;
 750         char name[RTE_ETH_NAME_MAX_LEN];
 751         int err = 0;
 752
 753         CXGBE_FUNC_TRACE();
 754
 755         eth_dev->dev_ops = &cxgbe_eth_dev_ops;
 756         eth_dev->rx_pkt_burst = &cxgbe_recv_pkts;
 757         eth_dev->tx_pkt_burst = &cxgbe_xmit_pkts;
 758
 759         /* for secondary processes, we don't initialise any further as primary
 760          * has already done this work.
 761          */
 762         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 763                 return 0;
 764
 765         pci_dev = eth_dev->pci_dev;
 766         snprintf(name, sizeof(name), "cxgbeadapter%d", eth_dev->data->port_id);
 767         adapter = rte_zmalloc(name, sizeof(*adapter), 0);
 768         if (!adapter)
 769                 return -1;
 770
 771         adapter->use_unpacked_mode = 1;
 772         adapter->regs = (void *)pci_dev->mem_resource[0].addr;
 773         if (!adapter->regs) {
 774                 dev_err(adapter, "%s: cannot map device registers\n", __func__);
 775                 err = -ENOMEM;
 776                 goto out_free_adapter;
 777         }
 778         adapter->pdev = pci_dev;
 779         adapter->eth_dev = eth_dev;
 780         pi->adapter = adapter;
 781
 782         err = cxgbe_probe(adapter);
 783         if (err)
 784                 dev_err(adapter, "%s: cxgbe probe failed with err %d\n",
 785                         __func__, err);
 786
 787 out_free_adapter:
 788         return err;
 789 }
 790
 791 static struct eth_driver rte_cxgbe_pmd = {
 792         {
 793                 .name = "rte_cxgbe_pmd",
 794                 .id_table = cxgb4_pci_tbl,
 795                 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
 796         },
 797         .eth_dev_init = eth_cxgbe_dev_init,
 798         .dev_private_size = sizeof(struct port_info),
 799 };
 800
 801 /*
 802  * Driver initialization routine.
 803  * Invoked once at EAL init time.
 804  * Register itself as the [Poll Mode] Driver of PCI CXGBE devices.
 805  */
 806 static int rte_cxgbe_pmd_init(const char *name __rte_unused,
 807                               const char *params __rte_unused)
 808 {
 809         CXGBE_FUNC_TRACE();
 810
 811         rte_eth_driver_register(&rte_cxgbe_pmd);
 812         return 0;
 813 }
 814
 815 static struct rte_driver rte_cxgbe_driver = {
 816         .name = "cxgbe_driver",
 817         .type = PMD_PDEV,
 818         .init = rte_cxgbe_pmd_init,
 819 };
 820
 821 PMD_REGISTER_DRIVER(rte_cxgbe_driver);