drivers/net/ixgbe/ixgbe_rxtx.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2016 Intel Corporation.
   3  * Copyright 2014 6WIND S.A.
   4  */
   5
   6 #include <sys/queue.h>
   7
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <errno.h>
  12 #include <stdint.h>
  13 #include <stdarg.h>
  14 #include <unistd.h>
  15 #include <inttypes.h>
  16
  17 #include <rte_byteorder.h>
  18 #include <rte_common.h>
  19 #include <rte_cycles.h>
  20 #include <rte_log.h>
  21 #include <rte_debug.h>
  22 #include <rte_interrupts.h>
  23 #include <rte_pci.h>
  24 #include <rte_memory.h>
  25 #include <rte_memzone.h>
  26 #include <rte_launch.h>
  27 #include <rte_eal.h>
  28 #include <rte_per_lcore.h>
  29 #include <rte_lcore.h>
  30 #include <rte_atomic.h>
  31 #include <rte_branch_prediction.h>
  32 #include <rte_mempool.h>
  33 #include <rte_malloc.h>
  34 #include <rte_mbuf.h>
  35 #include <rte_ether.h>
  36 #include <rte_ethdev_driver.h>
  37 #include <rte_prefetch.h>
  38 #include <rte_udp.h>
  39 #include <rte_tcp.h>
  40 #include <rte_sctp.h>
  41 #include <rte_string_fns.h>
  42 #include <rte_errno.h>
  43 #include <rte_ip.h>
  44 #include <rte_net.h>
  45
  46 #include "ixgbe_logs.h"
  47 #include "base/ixgbe_api.h"
  48 #include "base/ixgbe_vf.h"
  49 #include "ixgbe_ethdev.h"
  50 #include "base/ixgbe_dcb.h"
  51 #include "base/ixgbe_common.h"
  52 #include "ixgbe_rxtx.h"
  53
  54 #ifdef RTE_LIBRTE_IEEE1588
  55 #define IXGBE_TX_IEEE1588_TMST PKT_TX_IEEE1588_TMST
  56 #else
  57 #define IXGBE_TX_IEEE1588_TMST 0
  58 #endif
  59 /* Bit Mask to indicate what bits required for building TX context */
  60 #define IXGBE_TX_OFFLOAD_MASK (                  \
  61                 PKT_TX_VLAN_PKT |                \
  62                 PKT_TX_IP_CKSUM |                \
  63                 PKT_TX_L4_MASK |                 \
  64                 PKT_TX_TCP_SEG |                 \
  65                 PKT_TX_MACSEC |                  \
  66                 PKT_TX_OUTER_IP_CKSUM |          \
  67                 PKT_TX_SEC_OFFLOAD |     \
  68                 IXGBE_TX_IEEE1588_TMST)
  69
  70 #define IXGBE_TX_OFFLOAD_NOTSUP_MASK \
  71                 (PKT_TX_OFFLOAD_MASK ^ IXGBE_TX_OFFLOAD_MASK)
  72
  73 #if 1
  74 #define RTE_PMD_USE_PREFETCH
  75 #endif
  76
  77 #ifdef RTE_PMD_USE_PREFETCH
  78 /*
  79  * Prefetch a cache line into all cache levels.
  80  */
  81 #define rte_ixgbe_prefetch(p)   rte_prefetch0(p)
  82 #else
  83 #define rte_ixgbe_prefetch(p)   do {} while (0)
  84 #endif
  85
  86 #ifdef RTE_IXGBE_INC_VECTOR
  87 uint16_t ixgbe_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
  88                                     uint16_t nb_pkts);
  89 #endif
  90
  91 /*********************************************************************
  92  *
  93  *  TX functions
  94  *
  95  **********************************************************************/
  96
  97 /*
  98  * Check for descriptors with their DD bit set and free mbufs.
  99  * Return the total number of buffers freed.
 100  */
 101 static __rte_always_inline int
 102 ixgbe_tx_free_bufs(struct ixgbe_tx_queue *txq)
 103 {
 104         struct ixgbe_tx_entry *txep;
 105         uint32_t status;
 106         int i, nb_free = 0;
 107         struct rte_mbuf *m, *free[RTE_IXGBE_TX_MAX_FREE_BUF_SZ];
 108
 109         /* check DD bit on threshold descriptor */
 110         status = txq->tx_ring[txq->tx_next_dd].wb.status;
 111         if (!(status & rte_cpu_to_le_32(IXGBE_ADVTXD_STAT_DD)))
 112                 return 0;
 113
 114         /*
 115          * first buffer to free from S/W ring is at index
 116          * tx_next_dd - (tx_rs_thresh-1)
 117          */
 118         txep = &(txq->sw_ring[txq->tx_next_dd - (txq->tx_rs_thresh - 1)]);
 119
 120         for (i = 0; i < txq->tx_rs_thresh; ++i, ++txep) {
 121                 /* free buffers one at a time */
 122                 m = rte_pktmbuf_prefree_seg(txep->mbuf);
 123                 txep->mbuf = NULL;
 124
 125                 if (unlikely(m == NULL))
 126                         continue;
 127
 128                 if (nb_free >= RTE_IXGBE_TX_MAX_FREE_BUF_SZ ||
 129                     (nb_free > 0 && m->pool != free[0]->pool)) {
 130                         rte_mempool_put_bulk(free[0]->pool,
 131                                              (void **)free, nb_free);
 132                         nb_free = 0;
 133                 }
 134
 135                 free[nb_free++] = m;
 136         }
 137
 138         if (nb_free > 0)
 139                 rte_mempool_put_bulk(free[0]->pool, (void **)free, nb_free);
 140
 141         /* buffers were freed, update counters */
 142         txq->nb_tx_free = (uint16_t)(txq->nb_tx_free + txq->tx_rs_thresh);
 143         txq->tx_next_dd = (uint16_t)(txq->tx_next_dd + txq->tx_rs_thresh);
 144         if (txq->tx_next_dd >= txq->nb_tx_desc)
 145                 txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);
 146
 147         return txq->tx_rs_thresh;
 148 }
 149
 150 /* Populate 4 descriptors with data from 4 mbufs */
 151 static inline void
 152 tx4(volatile union ixgbe_adv_tx_desc *txdp, struct rte_mbuf **pkts)
 153 {
 154         uint64_t buf_dma_addr;
 155         uint32_t pkt_len;
 156         int i;
 157
 158         for (i = 0; i < 4; ++i, ++txdp, ++pkts) {
 159                 buf_dma_addr = rte_mbuf_data_iova(*pkts);
 160                 pkt_len = (*pkts)->data_len;
 161
 162                 /* write data to descriptor */
 163                 txdp->read.buffer_addr = rte_cpu_to_le_64(buf_dma_addr);
 164
 165                 txdp->read.cmd_type_len =
 166                         rte_cpu_to_le_32((uint32_t)DCMD_DTYP_FLAGS | pkt_len);
 167
 168                 txdp->read.olinfo_status =
 169                         rte_cpu_to_le_32(pkt_len << IXGBE_ADVTXD_PAYLEN_SHIFT);
 170
 171                 rte_prefetch0(&(*pkts)->pool);
 172         }
 173 }
 174
 175 /* Populate 1 descriptor with data from 1 mbuf */
 176 static inline void
 177 tx1(volatile union ixgbe_adv_tx_desc *txdp, struct rte_mbuf **pkts)
 178 {
 179         uint64_t buf_dma_addr;
 180         uint32_t pkt_len;
 181
 182         buf_dma_addr = rte_mbuf_data_iova(*pkts);
 183         pkt_len = (*pkts)->data_len;
 184
 185         /* write data to descriptor */
 186         txdp->read.buffer_addr = rte_cpu_to_le_64(buf_dma_addr);
 187         txdp->read.cmd_type_len =
 188                         rte_cpu_to_le_32((uint32_t)DCMD_DTYP_FLAGS | pkt_len);
 189         txdp->read.olinfo_status =
 190                         rte_cpu_to_le_32(pkt_len << IXGBE_ADVTXD_PAYLEN_SHIFT);
 191         rte_prefetch0(&(*pkts)->pool);
 192 }
 193
 194 /*
 195  * Fill H/W descriptor ring with mbuf data.
 196  * Copy mbuf pointers to the S/W ring.
 197  */
 198 static inline void
 199 ixgbe_tx_fill_hw_ring(struct ixgbe_tx_queue *txq, struct rte_mbuf **pkts,
 200                       uint16_t nb_pkts)
 201 {
 202         volatile union ixgbe_adv_tx_desc *txdp = &(txq->tx_ring[txq->tx_tail]);
 203         struct ixgbe_tx_entry *txep = &(txq->sw_ring[txq->tx_tail]);
 204         const int N_PER_LOOP = 4;
 205         const int N_PER_LOOP_MASK = N_PER_LOOP-1;
 206         int mainpart, leftover;
 207         int i, j;
 208
 209         /*
 210          * Process most of the packets in chunks of N pkts.  Any
 211          * leftover packets will get processed one at a time.
 212          */
 213         mainpart = (nb_pkts & ((uint32_t) ~N_PER_LOOP_MASK));
 214         leftover = (nb_pkts & ((uint32_t)  N_PER_LOOP_MASK));
 215         for (i = 0; i < mainpart; i += N_PER_LOOP) {
 216                 /* Copy N mbuf pointers to the S/W ring */
 217                 for (j = 0; j < N_PER_LOOP; ++j) {
 218                         (txep + i + j)->mbuf = *(pkts + i + j);
 219                 }
 220                 tx4(txdp + i, pkts + i);
 221         }
 222
 223         if (unlikely(leftover > 0)) {
 224                 for (i = 0; i < leftover; ++i) {
 225                         (txep + mainpart + i)->mbuf = *(pkts + mainpart + i);
 226                         tx1(txdp + mainpart + i, pkts + mainpart + i);
 227                 }
 228         }
 229 }
 230
 231 static inline uint16_t
 232 tx_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 233              uint16_t nb_pkts)
 234 {
 235         struct ixgbe_tx_queue *txq = (struct ixgbe_tx_queue *)tx_queue;
 236         volatile union ixgbe_adv_tx_desc *tx_r = txq->tx_ring;
 237         uint16_t n = 0;
 238
 239         /*
 240          * Begin scanning the H/W ring for done descriptors when the
 241          * number of available descriptors drops below tx_free_thresh.  For
 242          * each done descriptor, free the associated buffer.
 243          */
 244         if (txq->nb_tx_free < txq->tx_free_thresh)
 245                 ixgbe_tx_free_bufs(txq);
 246
 247         /* Only use descriptors that are available */
 248         nb_pkts = (uint16_t)RTE_MIN(txq->nb_tx_free, nb_pkts);
 249         if (unlikely(nb_pkts == 0))
 250                 return 0;
 251
 252         /* Use exactly nb_pkts descriptors */
 253         txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_pkts);
 254
 255         /*
 256          * At this point, we know there are enough descriptors in the
 257          * ring to transmit all the packets.  This assumes that each
 258          * mbuf contains a single segment, and that no new offloads
 259          * are expected, which would require a new context descriptor.
 260          */
 261
 262         /*
 263          * See if we're going to wrap-around. If so, handle the top
 264          * of the descriptor ring first, then do the bottom.  If not,
 265          * the processing looks just like the "bottom" part anyway...
 266          */
 267         if ((txq->tx_tail + nb_pkts) > txq->nb_tx_desc) {
 268                 n = (uint16_t)(txq->nb_tx_desc - txq->tx_tail);
 269                 ixgbe_tx_fill_hw_ring(txq, tx_pkts, n);
 270
 271                 /*
 272                  * We know that the last descriptor in the ring will need to
 273                  * have its RS bit set because tx_rs_thresh has to be
 274                  * a divisor of the ring size
 275                  */
 276                 tx_r[txq->tx_next_rs].read.cmd_type_len |=
 277                         rte_cpu_to_le_32(IXGBE_ADVTXD_DCMD_RS);
 278                 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
 279
 280                 txq->tx_tail = 0;
 281         }
 282
 283         /* Fill H/W descriptor ring with mbuf data */
 284         ixgbe_tx_fill_hw_ring(txq, tx_pkts + n, (uint16_t)(nb_pkts - n));
 285         txq->tx_tail = (uint16_t)(txq->tx_tail + (nb_pkts - n));
 286
 287         /*
 288          * Determine if RS bit should be set
 289          * This is what we actually want:
 290          *   if ((txq->tx_tail - 1) >= txq->tx_next_rs)
 291          * but instead of subtracting 1 and doing >=, we can just do
 292          * greater than without subtracting.
 293          */
 294         if (txq->tx_tail > txq->tx_next_rs) {
 295                 tx_r[txq->tx_next_rs].read.cmd_type_len |=
 296                         rte_cpu_to_le_32(IXGBE_ADVTXD_DCMD_RS);
 297                 txq->tx_next_rs = (uint16_t)(txq->tx_next_rs +
 298                                                 txq->tx_rs_thresh);
 299                 if (txq->tx_next_rs >= txq->nb_tx_desc)
 300                         txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
 301         }
 302
 303         /*
 304          * Check for wrap-around. This would only happen if we used
 305          * up to the last descriptor in the ring, no more, no less.
 306          */
 307         if (txq->tx_tail >= txq->nb_tx_desc)
 308                 txq->tx_tail = 0;
 309
 310         /* update tail pointer */
 311         rte_wmb();
 312         IXGBE_PCI_REG_WRITE_RELAXED(txq->tdt_reg_addr, txq->tx_tail);
 313
 314         return nb_pkts;
 315 }
 316
 317 uint16_t
 318 ixgbe_xmit_pkts_simple(void *tx_queue, struct rte_mbuf **tx_pkts,
 319                        uint16_t nb_pkts)
 320 {
 321         uint16_t nb_tx;
 322
 323         /* Try to transmit at least chunks of TX_MAX_BURST pkts */
 324         if (likely(nb_pkts <= RTE_PMD_IXGBE_TX_MAX_BURST))
 325                 return tx_xmit_pkts(tx_queue, tx_pkts, nb_pkts);
 326
 327         /* transmit more than the max burst, in chunks of TX_MAX_BURST */
 328         nb_tx = 0;
 329         while (nb_pkts) {
 330                 uint16_t ret, n;
 331
 332                 n = (uint16_t)RTE_MIN(nb_pkts, RTE_PMD_IXGBE_TX_MAX_BURST);
 333                 ret = tx_xmit_pkts(tx_queue, &(tx_pkts[nb_tx]), n);
 334                 nb_tx = (uint16_t)(nb_tx + ret);
 335                 nb_pkts = (uint16_t)(nb_pkts - ret);
 336                 if (ret < n)
 337                         break;
 338         }
 339
 340         return nb_tx;
 341 }
 342
 343 #ifdef RTE_IXGBE_INC_VECTOR
 344 static uint16_t
 345 ixgbe_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
 346                     uint16_t nb_pkts)
 347 {
 348         uint16_t nb_tx = 0;
 349         struct ixgbe_tx_queue *txq = (struct ixgbe_tx_queue *)tx_queue;
 350
 351         while (nb_pkts) {
 352                 uint16_t ret, num;
 353
 354                 num = (uint16_t)RTE_MIN(nb_pkts, txq->tx_rs_thresh);
 355                 ret = ixgbe_xmit_fixed_burst_vec(tx_queue, &tx_pkts[nb_tx],
 356                                                  num);
 357                 nb_tx += ret;
 358                 nb_pkts -= ret;
 359                 if (ret < num)
 360                         break;
 361         }
 362
 363         return nb_tx;
 364 }
 365 #endif
 366
 367 static inline void
 368 ixgbe_set_xmit_ctx(struct ixgbe_tx_queue *txq,
 369                 volatile struct ixgbe_adv_tx_context_desc *ctx_txd,
 370                 uint64_t ol_flags, union ixgbe_tx_offload tx_offload,
 371                 __rte_unused uint64_t *mdata)
 372 {
 373         uint32_t type_tucmd_mlhl;
 374         uint32_t mss_l4len_idx = 0;
 375         uint32_t ctx_idx;
 376         uint32_t vlan_macip_lens;
 377         union ixgbe_tx_offload tx_offload_mask;
 378         uint32_t seqnum_seed = 0;
 379
 380         ctx_idx = txq->ctx_curr;
 381         tx_offload_mask.data[0] = 0;
 382         tx_offload_mask.data[1] = 0;
 383         type_tucmd_mlhl = 0;
 384
 385         /* Specify which HW CTX to upload. */
 386         mss_l4len_idx |= (ctx_idx << IXGBE_ADVTXD_IDX_SHIFT);
 387
 388         if (ol_flags & PKT_TX_VLAN_PKT) {
 389                 tx_offload_mask.vlan_tci |= ~0;
 390         }
 391
 392         /* check if TCP segmentation required for this packet */
 393         if (ol_flags & PKT_TX_TCP_SEG) {
 394                 /* implies IP cksum in IPv4 */
 395                 if (ol_flags & PKT_TX_IP_CKSUM)
 396                         type_tucmd_mlhl = IXGBE_ADVTXD_TUCMD_IPV4 |
 397                                 IXGBE_ADVTXD_TUCMD_L4T_TCP |
 398                                 IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
 399                 else
 400                         type_tucmd_mlhl = IXGBE_ADVTXD_TUCMD_IPV6 |
 401                                 IXGBE_ADVTXD_TUCMD_L4T_TCP |
 402                                 IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
 403
 404                 tx_offload_mask.l2_len |= ~0;
 405                 tx_offload_mask.l3_len |= ~0;
 406                 tx_offload_mask.l4_len |= ~0;
 407                 tx_offload_mask.tso_segsz |= ~0;
 408                 mss_l4len_idx |= tx_offload.tso_segsz << IXGBE_ADVTXD_MSS_SHIFT;
 409                 mss_l4len_idx |= tx_offload.l4_len << IXGBE_ADVTXD_L4LEN_SHIFT;
 410         } else { /* no TSO, check if hardware checksum is needed */
 411                 if (ol_flags & PKT_TX_IP_CKSUM) {
 412                         type_tucmd_mlhl = IXGBE_ADVTXD_TUCMD_IPV4;
 413                         tx_offload_mask.l2_len |= ~0;
 414                         tx_offload_mask.l3_len |= ~0;
 415                 }
 416
 417                 switch (ol_flags & PKT_TX_L4_MASK) {
 418                 case PKT_TX_UDP_CKSUM:
 419                         type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_UDP |
 420                                 IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
 421                         mss_l4len_idx |= sizeof(struct udp_hdr) << IXGBE_ADVTXD_L4LEN_SHIFT;
 422                         tx_offload_mask.l2_len |= ~0;
 423                         tx_offload_mask.l3_len |= ~0;
 424                         break;
 425                 case PKT_TX_TCP_CKSUM:
 426                         type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_TCP |
 427                                 IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
 428                         mss_l4len_idx |= sizeof(struct tcp_hdr) << IXGBE_ADVTXD_L4LEN_SHIFT;
 429                         tx_offload_mask.l2_len |= ~0;
 430                         tx_offload_mask.l3_len |= ~0;
 431                         break;
 432                 case PKT_TX_SCTP_CKSUM:
 433                         type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_SCTP |
 434                                 IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
 435                         mss_l4len_idx |= sizeof(struct sctp_hdr) << IXGBE_ADVTXD_L4LEN_SHIFT;
 436                         tx_offload_mask.l2_len |= ~0;
 437                         tx_offload_mask.l3_len |= ~0;
 438                         break;
 439                 default:
 440                         type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_RSV |
 441                                 IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
 442                         break;
 443                 }
 444         }
 445
 446         if (ol_flags & PKT_TX_OUTER_IP_CKSUM) {
 447                 tx_offload_mask.outer_l2_len |= ~0;
 448                 tx_offload_mask.outer_l3_len |= ~0;
 449                 tx_offload_mask.l2_len |= ~0;
 450                 seqnum_seed |= tx_offload.outer_l3_len
 451                                << IXGBE_ADVTXD_OUTER_IPLEN;
 452                 seqnum_seed |= tx_offload.l2_len
 453                                << IXGBE_ADVTXD_TUNNEL_LEN;
 454         }
 455 #ifdef RTE_LIBRTE_SECURITY
 456         if (ol_flags & PKT_TX_SEC_OFFLOAD) {
 457                 union ixgbe_crypto_tx_desc_md *md =
 458                                 (union ixgbe_crypto_tx_desc_md *)mdata;
 459                 seqnum_seed |=
 460                         (IXGBE_ADVTXD_IPSEC_SA_INDEX_MASK & md->sa_idx);
 461                 type_tucmd_mlhl |= md->enc ?
 462                                 (IXGBE_ADVTXD_TUCMD_IPSEC_TYPE_ESP |
 463                                 IXGBE_ADVTXD_TUCMD_IPSEC_ENCRYPT_EN) : 0;
 464                 type_tucmd_mlhl |=
 465                         (md->pad_len & IXGBE_ADVTXD_IPSEC_ESP_LEN_MASK);
 466                 tx_offload_mask.sa_idx |= ~0;
 467                 tx_offload_mask.sec_pad_len |= ~0;
 468         }
 469 #endif
 470
 471         txq->ctx_cache[ctx_idx].flags = ol_flags;
 472         txq->ctx_cache[ctx_idx].tx_offload.data[0]  =
 473                 tx_offload_mask.data[0] & tx_offload.data[0];
 474         txq->ctx_cache[ctx_idx].tx_offload.data[1]  =
 475                 tx_offload_mask.data[1] & tx_offload.data[1];
 476         txq->ctx_cache[ctx_idx].tx_offload_mask    = tx_offload_mask;
 477
 478         ctx_txd->type_tucmd_mlhl = rte_cpu_to_le_32(type_tucmd_mlhl);
 479         vlan_macip_lens = tx_offload.l3_len;
 480         if (ol_flags & PKT_TX_OUTER_IP_CKSUM)
 481                 vlan_macip_lens |= (tx_offload.outer_l2_len <<
 482                                     IXGBE_ADVTXD_MACLEN_SHIFT);
 483         else
 484                 vlan_macip_lens |= (tx_offload.l2_len <<
 485                                     IXGBE_ADVTXD_MACLEN_SHIFT);
 486         vlan_macip_lens |= ((uint32_t)tx_offload.vlan_tci << IXGBE_ADVTXD_VLAN_SHIFT);
 487         ctx_txd->vlan_macip_lens = rte_cpu_to_le_32(vlan_macip_lens);
 488         ctx_txd->mss_l4len_idx   = rte_cpu_to_le_32(mss_l4len_idx);
 489         ctx_txd->seqnum_seed     = seqnum_seed;
 490 }
 491
 492 /*
 493  * Check which hardware context can be used. Use the existing match
 494  * or create a new context descriptor.
 495  */
 496 static inline uint32_t
 497 what_advctx_update(struct ixgbe_tx_queue *txq, uint64_t flags,
 498                    union ixgbe_tx_offload tx_offload)
 499 {
 500         /* If match with the current used context */
 501         if (likely((txq->ctx_cache[txq->ctx_curr].flags == flags) &&
 502                    (txq->ctx_cache[txq->ctx_curr].tx_offload.data[0] ==
 503                     (txq->ctx_cache[txq->ctx_curr].tx_offload_mask.data[0]
 504                      & tx_offload.data[0])) &&
 505                    (txq->ctx_cache[txq->ctx_curr].tx_offload.data[1] ==
 506                     (txq->ctx_cache[txq->ctx_curr].tx_offload_mask.data[1]
 507                      & tx_offload.data[1]))))
 508                 return txq->ctx_curr;
 509
 510         /* What if match with the next context  */
 511         txq->ctx_curr ^= 1;
 512         if (likely((txq->ctx_cache[txq->ctx_curr].flags == flags) &&
 513                    (txq->ctx_cache[txq->ctx_curr].tx_offload.data[0] ==
 514                     (txq->ctx_cache[txq->ctx_curr].tx_offload_mask.data[0]
 515                      & tx_offload.data[0])) &&
 516                    (txq->ctx_cache[txq->ctx_curr].tx_offload.data[1] ==
 517                     (txq->ctx_cache[txq->ctx_curr].tx_offload_mask.data[1]
 518                      & tx_offload.data[1]))))
 519                 return txq->ctx_curr;
 520
 521         /* Mismatch, use the previous context */
 522         return IXGBE_CTX_NUM;
 523 }
 524
 525 static inline uint32_t
 526 tx_desc_cksum_flags_to_olinfo(uint64_t ol_flags)
 527 {
 528         uint32_t tmp = 0;
 529
 530         if ((ol_flags & PKT_TX_L4_MASK) != PKT_TX_L4_NO_CKSUM)
 531                 tmp |= IXGBE_ADVTXD_POPTS_TXSM;
 532         if (ol_flags & PKT_TX_IP_CKSUM)
 533                 tmp |= IXGBE_ADVTXD_POPTS_IXSM;
 534         if (ol_flags & PKT_TX_TCP_SEG)
 535                 tmp |= IXGBE_ADVTXD_POPTS_TXSM;
 536         return tmp;
 537 }
 538
 539 static inline uint32_t
 540 tx_desc_ol_flags_to_cmdtype(uint64_t ol_flags)
 541 {
 542         uint32_t cmdtype = 0;
 543
 544         if (ol_flags & PKT_TX_VLAN_PKT)
 545                 cmdtype |= IXGBE_ADVTXD_DCMD_VLE;
 546         if (ol_flags & PKT_TX_TCP_SEG)
 547                 cmdtype |= IXGBE_ADVTXD_DCMD_TSE;
 548         if (ol_flags & PKT_TX_OUTER_IP_CKSUM)
 549                 cmdtype |= (1 << IXGBE_ADVTXD_OUTERIPCS_SHIFT);
 550         if (ol_flags & PKT_TX_MACSEC)
 551                 cmdtype |= IXGBE_ADVTXD_MAC_LINKSEC;
 552         return cmdtype;
 553 }
 554
 555 /* Default RS bit threshold values */
 556 #ifndef DEFAULT_TX_RS_THRESH
 557 #define DEFAULT_TX_RS_THRESH   32
 558 #endif
 559 #ifndef DEFAULT_TX_FREE_THRESH
 560 #define DEFAULT_TX_FREE_THRESH 32
 561 #endif
 562
 563 /* Reset transmit descriptors after they have been used */
 564 static inline int
 565 ixgbe_xmit_cleanup(struct ixgbe_tx_queue *txq)
 566 {
 567         struct ixgbe_tx_entry *sw_ring = txq->sw_ring;
 568         volatile union ixgbe_adv_tx_desc *txr = txq->tx_ring;
 569         uint16_t last_desc_cleaned = txq->last_desc_cleaned;
 570         uint16_t nb_tx_desc = txq->nb_tx_desc;
 571         uint16_t desc_to_clean_to;
 572         uint16_t nb_tx_to_clean;
 573         uint32_t status;
 574
 575         /* Determine the last descriptor needing to be cleaned */
 576         desc_to_clean_to = (uint16_t)(last_desc_cleaned + txq->tx_rs_thresh);
 577         if (desc_to_clean_to >= nb_tx_desc)
 578                 desc_to_clean_to = (uint16_t)(desc_to_clean_to - nb_tx_desc);
 579
 580         /* Check to make sure the last descriptor to clean is done */
 581         desc_to_clean_to = sw_ring[desc_to_clean_to].last_id;
 582         status = txr[desc_to_clean_to].wb.status;
 583         if (!(status & rte_cpu_to_le_32(IXGBE_TXD_STAT_DD))) {
 584                 PMD_TX_FREE_LOG(DEBUG,
 585                                 "TX descriptor %4u is not done"
 586                                 "(port=%d queue=%d)",
 587                                 desc_to_clean_to,
 588                                 txq->port_id, txq->queue_id);
 589                 /* Failed to clean any descriptors, better luck next time */
 590                 return -(1);
 591         }
 592
 593         /* Figure out how many descriptors will be cleaned */
 594         if (last_desc_cleaned > desc_to_clean_to)
 595                 nb_tx_to_clean = (uint16_t)((nb_tx_desc - last_desc_cleaned) +
 596                                                         desc_to_clean_to);
 597         else
 598                 nb_tx_to_clean = (uint16_t)(desc_to_clean_to -
 599                                                 last_desc_cleaned);
 600
 601         PMD_TX_FREE_LOG(DEBUG,
 602                         "Cleaning %4u TX descriptors: %4u to %4u "
 603                         "(port=%d queue=%d)",
 604                         nb_tx_to_clean, last_desc_cleaned, desc_to_clean_to,
 605                         txq->port_id, txq->queue_id);
 606
 607         /*
 608          * The last descriptor to clean is done, so that means all the
 609          * descriptors from the last descriptor that was cleaned
 610          * up to the last descriptor with the RS bit set
 611          * are done. Only reset the threshold descriptor.
 612          */
 613         txr[desc_to_clean_to].wb.status = 0;
 614
 615         /* Update the txq to reflect the last descriptor that was cleaned */
 616         txq->last_desc_cleaned = desc_to_clean_to;
 617         txq->nb_tx_free = (uint16_t)(txq->nb_tx_free + nb_tx_to_clean);
 618
 619         /* No Error */
 620         return 0;
 621 }
 622
 623 uint16_t
 624 ixgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 625                 uint16_t nb_pkts)
 626 {
 627         struct ixgbe_tx_queue *txq;
 628         struct ixgbe_tx_entry *sw_ring;
 629         struct ixgbe_tx_entry *txe, *txn;
 630         volatile union ixgbe_adv_tx_desc *txr;
 631         volatile union ixgbe_adv_tx_desc *txd, *txp;
 632         struct rte_mbuf     *tx_pkt;
 633         struct rte_mbuf     *m_seg;
 634         uint64_t buf_dma_addr;
 635         uint32_t olinfo_status;
 636         uint32_t cmd_type_len;
 637         uint32_t pkt_len;
 638         uint16_t slen;
 639         uint64_t ol_flags;
 640         uint16_t tx_id;
 641         uint16_t tx_last;
 642         uint16_t nb_tx;
 643         uint16_t nb_used;
 644         uint64_t tx_ol_req;
 645         uint32_t ctx = 0;
 646         uint32_t new_ctx;
 647         union ixgbe_tx_offload tx_offload;
 648 #ifdef RTE_LIBRTE_SECURITY
 649         uint8_t use_ipsec;
 650 #endif
 651
 652         tx_offload.data[0] = 0;
 653         tx_offload.data[1] = 0;
 654         txq = tx_queue;
 655         sw_ring = txq->sw_ring;
 656         txr     = txq->tx_ring;
 657         tx_id   = txq->tx_tail;
 658         txe = &sw_ring[tx_id];
 659         txp = NULL;
 660
 661         /* Determine if the descriptor ring needs to be cleaned. */
 662         if (txq->nb_tx_free < txq->tx_free_thresh)
 663                 ixgbe_xmit_cleanup(txq);
 664
 665         rte_prefetch0(&txe->mbuf->pool);
 666
 667         /* TX loop */
 668         for (nb_tx = 0; nb_tx < nb_pkts; nb_tx++) {
 669                 new_ctx = 0;
 670                 tx_pkt = *tx_pkts++;
 671                 pkt_len = tx_pkt->pkt_len;
 672
 673                 /*
 674                  * Determine how many (if any) context descriptors
 675                  * are needed for offload functionality.
 676                  */
 677                 ol_flags = tx_pkt->ol_flags;
 678 #ifdef RTE_LIBRTE_SECURITY
 679                 use_ipsec = txq->using_ipsec && (ol_flags & PKT_TX_SEC_OFFLOAD);
 680 #endif
 681
 682                 /* If hardware offload required */
 683                 tx_ol_req = ol_flags & IXGBE_TX_OFFLOAD_MASK;
 684                 if (tx_ol_req) {
 685                         tx_offload.l2_len = tx_pkt->l2_len;
 686                         tx_offload.l3_len = tx_pkt->l3_len;
 687                         tx_offload.l4_len = tx_pkt->l4_len;
 688                         tx_offload.vlan_tci = tx_pkt->vlan_tci;
 689                         tx_offload.tso_segsz = tx_pkt->tso_segsz;
 690                         tx_offload.outer_l2_len = tx_pkt->outer_l2_len;
 691                         tx_offload.outer_l3_len = tx_pkt->outer_l3_len;
 692 #ifdef RTE_LIBRTE_SECURITY
 693                         if (use_ipsec) {
 694                                 union ixgbe_crypto_tx_desc_md *ipsec_mdata =
 695                                         (union ixgbe_crypto_tx_desc_md *)
 696                                                         &tx_pkt->udata64;
 697                                 tx_offload.sa_idx = ipsec_mdata->sa_idx;
 698                                 tx_offload.sec_pad_len = ipsec_mdata->pad_len;
 699                         }
 700 #endif
 701
 702                         /* If new context need be built or reuse the exist ctx. */
 703                         ctx = what_advctx_update(txq, tx_ol_req,
 704                                 tx_offload);
 705                         /* Only allocate context descriptor if required*/
 706                         new_ctx = (ctx == IXGBE_CTX_NUM);
 707                         ctx = txq->ctx_curr;
 708                 }
 709
 710                 /*
 711                  * Keep track of how many descriptors are used this loop
 712                  * This will always be the number of segments + the number of
 713                  * Context descriptors required to transmit the packet
 714                  */
 715                 nb_used = (uint16_t)(tx_pkt->nb_segs + new_ctx);
 716
 717                 if (txp != NULL &&
 718                                 nb_used + txq->nb_tx_used >= txq->tx_rs_thresh)
 719                         /* set RS on the previous packet in the burst */
 720                         txp->read.cmd_type_len |=
 721                                 rte_cpu_to_le_32(IXGBE_TXD_CMD_RS);
 722
 723                 /*
 724                  * The number of descriptors that must be allocated for a
 725                  * packet is the number of segments of that packet, plus 1
 726                  * Context Descriptor for the hardware offload, if any.
 727                  * Determine the last TX descriptor to allocate in the TX ring
 728                  * for the packet, starting from the current position (tx_id)
 729                  * in the ring.
 730                  */
 731                 tx_last = (uint16_t) (tx_id + nb_used - 1);
 732
 733                 /* Circular ring */
 734                 if (tx_last >= txq->nb_tx_desc)
 735                         tx_last = (uint16_t) (tx_last - txq->nb_tx_desc);
 736
 737                 PMD_TX_LOG(DEBUG, "port_id=%u queue_id=%u pktlen=%u"
 738                            " tx_first=%u tx_last=%u",
 739                            (unsigned) txq->port_id,
 740                            (unsigned) txq->queue_id,
 741                            (unsigned) pkt_len,
 742                            (unsigned) tx_id,
 743                            (unsigned) tx_last);
 744
 745                 /*
 746                  * Make sure there are enough TX descriptors available to
 747                  * transmit the entire packet.
 748                  * nb_used better be less than or equal to txq->tx_rs_thresh
 749                  */
 750                 if (nb_used > txq->nb_tx_free) {
 751                         PMD_TX_FREE_LOG(DEBUG,
 752                                         "Not enough free TX descriptors "
 753                                         "nb_used=%4u nb_free=%4u "
 754                                         "(port=%d queue=%d)",
 755                                         nb_used, txq->nb_tx_free,
 756                                         txq->port_id, txq->queue_id);
 757
 758                         if (ixgbe_xmit_cleanup(txq) != 0) {
 759                                 /* Could not clean any descriptors */
 760                                 if (nb_tx == 0)
 761                                         return 0;
 762                                 goto end_of_tx;
 763                         }
 764
 765                         /* nb_used better be <= txq->tx_rs_thresh */
 766                         if (unlikely(nb_used > txq->tx_rs_thresh)) {
 767                                 PMD_TX_FREE_LOG(DEBUG,
 768                                         "The number of descriptors needed to "
 769                                         "transmit the packet exceeds the "
 770                                         "RS bit threshold. This will impact "
 771                                         "performance."
 772                                         "nb_used=%4u nb_free=%4u "
 773                                         "tx_rs_thresh=%4u. "
 774                                         "(port=%d queue=%d)",
 775                                         nb_used, txq->nb_tx_free,
 776                                         txq->tx_rs_thresh,
 777                                         txq->port_id, txq->queue_id);
 778                                 /*
 779                                  * Loop here until there are enough TX
 780                                  * descriptors or until the ring cannot be
 781                                  * cleaned.
 782                                  */
 783                                 while (nb_used > txq->nb_tx_free) {
 784                                         if (ixgbe_xmit_cleanup(txq) != 0) {
 785                                                 /*
 786                                                  * Could not clean any
 787                                                  * descriptors
 788                                                  */
 789                                                 if (nb_tx == 0)
 790                                                         return 0;
 791                                                 goto end_of_tx;
 792                                         }
 793                                 }
 794                         }
 795                 }
 796
 797                 /*
 798                  * By now there are enough free TX descriptors to transmit
 799                  * the packet.
 800                  */
 801
 802                 /*
 803                  * Set common flags of all TX Data Descriptors.
 804                  *
 805                  * The following bits must be set in all Data Descriptors:
 806                  *   - IXGBE_ADVTXD_DTYP_DATA
 807                  *   - IXGBE_ADVTXD_DCMD_DEXT
 808                  *
 809                  * The following bits must be set in the first Data Descriptor
 810                  * and are ignored in the other ones:
 811                  *   - IXGBE_ADVTXD_DCMD_IFCS
 812                  *   - IXGBE_ADVTXD_MAC_1588
 813                  *   - IXGBE_ADVTXD_DCMD_VLE
 814                  *
 815                  * The following bits must only be set in the last Data
 816                  * Descriptor:
 817                  *   - IXGBE_TXD_CMD_EOP
 818                  *
 819                  * The following bits can be set in any Data Descriptor, but
 820                  * are only set in the last Data Descriptor:
 821                  *   - IXGBE_TXD_CMD_RS
 822                  */
 823                 cmd_type_len = IXGBE_ADVTXD_DTYP_DATA |
 824                         IXGBE_ADVTXD_DCMD_IFCS | IXGBE_ADVTXD_DCMD_DEXT;
 825
 826 #ifdef RTE_LIBRTE_IEEE1588
 827                 if (ol_flags & PKT_TX_IEEE1588_TMST)
 828                         cmd_type_len |= IXGBE_ADVTXD_MAC_1588;
 829 #endif
 830
 831                 olinfo_status = 0;
 832                 if (tx_ol_req) {
 833
 834                         if (ol_flags & PKT_TX_TCP_SEG) {
 835                                 /* when TSO is on, paylen in descriptor is the
 836                                  * not the packet len but the tcp payload len */
 837                                 pkt_len -= (tx_offload.l2_len +
 838                                         tx_offload.l3_len + tx_offload.l4_len);
 839                         }
 840
 841                         /*
 842                          * Setup the TX Advanced Context Descriptor if required
 843                          */
 844                         if (new_ctx) {
 845                                 volatile struct ixgbe_adv_tx_context_desc *
 846                                     ctx_txd;
 847
 848                                 ctx_txd = (volatile struct
 849                                     ixgbe_adv_tx_context_desc *)
 850                                     &txr[tx_id];
 851
 852                                 txn = &sw_ring[txe->next_id];
 853                                 rte_prefetch0(&txn->mbuf->pool);
 854
 855                                 if (txe->mbuf != NULL) {
 856                                         rte_pktmbuf_free_seg(txe->mbuf);
 857                                         txe->mbuf = NULL;
 858                                 }
 859
 860                                 ixgbe_set_xmit_ctx(txq, ctx_txd, tx_ol_req,
 861                                         tx_offload, &tx_pkt->udata64);
 862
 863                                 txe->last_id = tx_last;
 864                                 tx_id = txe->next_id;
 865                                 txe = txn;
 866                         }
 867
 868                         /*
 869                          * Setup the TX Advanced Data Descriptor,
 870                          * This path will go through
 871                          * whatever new/reuse the context descriptor
 872                          */
 873                         cmd_type_len  |= tx_desc_ol_flags_to_cmdtype(ol_flags);
 874                         olinfo_status |= tx_desc_cksum_flags_to_olinfo(ol_flags);
 875                         olinfo_status |= ctx << IXGBE_ADVTXD_IDX_SHIFT;
 876                 }
 877
 878                 olinfo_status |= (pkt_len << IXGBE_ADVTXD_PAYLEN_SHIFT);
 879 #ifdef RTE_LIBRTE_SECURITY
 880                 if (use_ipsec)
 881                         olinfo_status |= IXGBE_ADVTXD_POPTS_IPSEC;
 882 #endif
 883
 884                 m_seg = tx_pkt;
 885                 do {
 886                         txd = &txr[tx_id];
 887                         txn = &sw_ring[txe->next_id];
 888                         rte_prefetch0(&txn->mbuf->pool);
 889
 890                         if (txe->mbuf != NULL)
 891                                 rte_pktmbuf_free_seg(txe->mbuf);
 892                         txe->mbuf = m_seg;
 893
 894                         /*
 895                          * Set up Transmit Data Descriptor.
 896                          */
 897                         slen = m_seg->data_len;
 898                         buf_dma_addr = rte_mbuf_data_iova(m_seg);
 899                         txd->read.buffer_addr =
 900                                 rte_cpu_to_le_64(buf_dma_addr);
 901                         txd->read.cmd_type_len =
 902                                 rte_cpu_to_le_32(cmd_type_len | slen);
 903                         txd->read.olinfo_status =
 904                                 rte_cpu_to_le_32(olinfo_status);
 905                         txe->last_id = tx_last;
 906                         tx_id = txe->next_id;
 907                         txe = txn;
 908                         m_seg = m_seg->next;
 909                 } while (m_seg != NULL);
 910
 911                 /*
 912                  * The last packet data descriptor needs End Of Packet (EOP)
 913                  */
 914                 cmd_type_len |= IXGBE_TXD_CMD_EOP;
 915                 txq->nb_tx_used = (uint16_t)(txq->nb_tx_used + nb_used);
 916                 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_used);
 917
 918                 /* Set RS bit only on threshold packets' last descriptor */
 919                 if (txq->nb_tx_used >= txq->tx_rs_thresh) {
 920                         PMD_TX_FREE_LOG(DEBUG,
 921                                         "Setting RS bit on TXD id="
 922                                         "%4u (port=%d queue=%d)",
 923                                         tx_last, txq->port_id, txq->queue_id);
 924
 925                         cmd_type_len |= IXGBE_TXD_CMD_RS;
 926
 927                         /* Update txq RS bit counters */
 928                         txq->nb_tx_used = 0;
 929                         txp = NULL;
 930                 } else
 931                         txp = txd;
 932
 933                 txd->read.cmd_type_len |= rte_cpu_to_le_32(cmd_type_len);
 934         }
 935
 936 end_of_tx:
 937         /* set RS on last packet in the burst */
 938         if (txp != NULL)
 939                 txp->read.cmd_type_len |= rte_cpu_to_le_32(IXGBE_TXD_CMD_RS);
 940
 941         rte_wmb();
 942
 943         /*
 944          * Set the Transmit Descriptor Tail (TDT)
 945          */
 946         PMD_TX_LOG(DEBUG, "port_id=%u queue_id=%u tx_tail=%u nb_tx=%u",
 947                    (unsigned) txq->port_id, (unsigned) txq->queue_id,
 948                    (unsigned) tx_id, (unsigned) nb_tx);
 949         IXGBE_PCI_REG_WRITE_RELAXED(txq->tdt_reg_addr, tx_id);
 950         txq->tx_tail = tx_id;
 951
 952         return nb_tx;
 953 }
 954
 955 /*********************************************************************
 956  *
 957  *  TX prep functions
 958  *
 959  **********************************************************************/
 960 uint16_t
 961 ixgbe_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 962 {
 963         int i, ret;
 964         uint64_t ol_flags;
 965         struct rte_mbuf *m;
 966         struct ixgbe_tx_queue *txq = (struct ixgbe_tx_queue *)tx_queue;
 967
 968         for (i = 0; i < nb_pkts; i++) {
 969                 m = tx_pkts[i];
 970                 ol_flags = m->ol_flags;
 971
 972                 /**
 973                  * Check if packet meets requirements for number of segments
 974                  *
 975                  * NOTE: for ixgbe it's always (40 - WTHRESH) for both TSO and
 976                  *       non-TSO
 977                  */
 978
 979                 if (m->nb_segs > IXGBE_TX_MAX_SEG - txq->wthresh) {
 980                         rte_errno = -EINVAL;
 981                         return i;
 982                 }
 983
 984                 if (ol_flags & IXGBE_TX_OFFLOAD_NOTSUP_MASK) {
 985                         rte_errno = -ENOTSUP;
 986                         return i;
 987                 }
 988
 989 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
 990                 ret = rte_validate_tx_offload(m);
 991                 if (ret != 0) {
 992                         rte_errno = ret;
 993                         return i;
 994                 }
 995 #endif
 996                 ret = rte_net_intel_cksum_prepare(m);
 997                 if (ret != 0) {
 998                         rte_errno = ret;
 999                         return i;
1000                 }
1001         }
1002
1003         return i;
1004 }
1005
1006 /*********************************************************************
1007  *
1008  *  RX functions
1009  *
1010  **********************************************************************/
1011
1012 #define IXGBE_PACKET_TYPE_ETHER                         0X00
1013 #define IXGBE_PACKET_TYPE_IPV4                          0X01
1014 #define IXGBE_PACKET_TYPE_IPV4_TCP                      0X11
1015 #define IXGBE_PACKET_TYPE_IPV4_UDP                      0X21
1016 #define IXGBE_PACKET_TYPE_IPV4_SCTP                     0X41
1017 #define IXGBE_PACKET_TYPE_IPV4_EXT                      0X03
1018 #define IXGBE_PACKET_TYPE_IPV4_EXT_TCP                  0X13
1019 #define IXGBE_PACKET_TYPE_IPV4_EXT_UDP                  0X23
1020 #define IXGBE_PACKET_TYPE_IPV4_EXT_SCTP                 0X43
1021 #define IXGBE_PACKET_TYPE_IPV6                          0X04
1022 #define IXGBE_PACKET_TYPE_IPV6_TCP                      0X14
1023 #define IXGBE_PACKET_TYPE_IPV6_UDP                      0X24
1024 #define IXGBE_PACKET_TYPE_IPV6_SCTP                     0X44
1025 #define IXGBE_PACKET_TYPE_IPV6_EXT                      0X0C
1026 #define IXGBE_PACKET_TYPE_IPV6_EXT_TCP                  0X1C
1027 #define IXGBE_PACKET_TYPE_IPV6_EXT_UDP                  0X2C
1028 #define IXGBE_PACKET_TYPE_IPV6_EXT_SCTP                 0X4C
1029 #define IXGBE_PACKET_TYPE_IPV4_IPV6                     0X05
1030 #define IXGBE_PACKET_TYPE_IPV4_IPV6_TCP                 0X15
1031 #define IXGBE_PACKET_TYPE_IPV4_IPV6_UDP                 0X25
1032 #define IXGBE_PACKET_TYPE_IPV4_IPV6_SCTP                0X45
1033 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6                 0X07
1034 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_TCP             0X17
1035 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_UDP             0X27
1036 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_SCTP            0X47
1037 #define IXGBE_PACKET_TYPE_IPV4_IPV6_EXT                 0X0D
1038 #define IXGBE_PACKET_TYPE_IPV4_IPV6_EXT_TCP             0X1D
1039 #define IXGBE_PACKET_TYPE_IPV4_IPV6_EXT_UDP             0X2D
1040 #define IXGBE_PACKET_TYPE_IPV4_IPV6_EXT_SCTP            0X4D
1041 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT             0X0F
1042 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT_TCP         0X1F
1043 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT_UDP         0X2F
1044 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT_SCTP        0X4F
1045
1046 #define IXGBE_PACKET_TYPE_NVGRE                   0X00
1047 #define IXGBE_PACKET_TYPE_NVGRE_IPV4              0X01
1048 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_TCP          0X11
1049 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_UDP          0X21
1050 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_SCTP         0X41
1051 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT          0X03
1052 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT_TCP      0X13
1053 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT_UDP      0X23
1054 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT_SCTP     0X43
1055 #define IXGBE_PACKET_TYPE_NVGRE_IPV6              0X04
1056 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_TCP          0X14
1057 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_UDP          0X24
1058 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_SCTP         0X44
1059 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT          0X0C
1060 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT_TCP      0X1C
1061 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT_UDP      0X2C
1062 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT_SCTP     0X4C
1063 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6         0X05
1064 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_TCP     0X15
1065 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_UDP     0X25
1066 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_EXT     0X0D
1067 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_EXT_TCP 0X1D
1068 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_EXT_UDP 0X2D
1069
1070 #define IXGBE_PACKET_TYPE_VXLAN                   0X80
1071 #define IXGBE_PACKET_TYPE_VXLAN_IPV4              0X81
1072 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_TCP          0x91
1073 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_UDP          0xA1
1074 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_SCTP         0xC1
1075 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT          0x83
1076 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT_TCP      0X93
1077 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT_UDP      0XA3
1078 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT_SCTP     0XC3
1079 #define IXGBE_PACKET_TYPE_VXLAN_IPV6              0X84
1080 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_TCP          0X94
1081 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_UDP          0XA4
1082 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_SCTP         0XC4
1083 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT          0X8C
1084 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT_TCP      0X9C
1085 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT_UDP      0XAC
1086 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT_SCTP     0XCC
1087 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6         0X85
1088 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_TCP     0X95
1089 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_UDP     0XA5
1090 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_EXT     0X8D
1091 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_EXT_TCP 0X9D
1092 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_EXT_UDP 0XAD
1093
1094 /**
1095  * Use 2 different table for normal packet and tunnel packet
1096  * to save the space.
1097  */
1098 const uint32_t
1099         ptype_table[IXGBE_PACKET_TYPE_MAX] __rte_cache_aligned = {
1100         [IXGBE_PACKET_TYPE_ETHER] = RTE_PTYPE_L2_ETHER,
1101         [IXGBE_PACKET_TYPE_IPV4] = RTE_PTYPE_L2_ETHER |
1102                 RTE_PTYPE_L3_IPV4,
1103         [IXGBE_PACKET_TYPE_IPV4_TCP] = RTE_PTYPE_L2_ETHER |
1104                 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_TCP,
1105         [IXGBE_PACKET_TYPE_IPV4_UDP] = RTE_PTYPE_L2_ETHER |
1106                 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_UDP,
1107         [IXGBE_PACKET_TYPE_IPV4_SCTP] = RTE_PTYPE_L2_ETHER |
1108                 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_SCTP,
1109         [IXGBE_PACKET_TYPE_IPV4_EXT] = RTE_PTYPE_L2_ETHER |
1110                 RTE_PTYPE_L3_IPV4_EXT,
1111         [IXGBE_PACKET_TYPE_IPV4_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1112                 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_TCP,
1113         [IXGBE_PACKET_TYPE_IPV4_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1114                 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_UDP,
1115         [IXGBE_PACKET_TYPE_IPV4_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1116                 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_SCTP,
1117         [IXGBE_PACKET_TYPE_IPV6] = RTE_PTYPE_L2_ETHER |
1118                 RTE_PTYPE_L3_IPV6,
1119         [IXGBE_PACKET_TYPE_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1120                 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP,
1121         [IXGBE_PACKET_TYPE_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1122                 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP,
1123         [IXGBE_PACKET_TYPE_IPV6_SCTP] = RTE_PTYPE_L2_ETHER |
1124                 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_SCTP,
1125         [IXGBE_PACKET_TYPE_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1126                 RTE_PTYPE_L3_IPV6_EXT,
1127         [IXGBE_PACKET_TYPE_IPV6_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1128                 RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_TCP,
1129         [IXGBE_PACKET_TYPE_IPV6_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1130                 RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_UDP,
1131         [IXGBE_PACKET_TYPE_IPV6_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1132                 RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_SCTP,
1133         [IXGBE_PACKET_TYPE_IPV4_IPV6] = RTE_PTYPE_L2_ETHER |
1134                 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1135                 RTE_PTYPE_INNER_L3_IPV6,
1136         [IXGBE_PACKET_TYPE_IPV4_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1137                 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1138                 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_TCP,
1139         [IXGBE_PACKET_TYPE_IPV4_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1140                 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1141         RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_UDP,
1142         [IXGBE_PACKET_TYPE_IPV4_IPV6_SCTP] = RTE_PTYPE_L2_ETHER |
1143                 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1144                 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_SCTP,
1145         [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6] = RTE_PTYPE_L2_ETHER |
1146                 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1147                 RTE_PTYPE_INNER_L3_IPV6,
1148         [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1149                 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1150                 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_TCP,
1151         [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1152                 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1153                 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_UDP,
1154         [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_SCTP] = RTE_PTYPE_L2_ETHER |
1155                 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1156                 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_SCTP,
1157         [IXGBE_PACKET_TYPE_IPV4_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1158                 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1159                 RTE_PTYPE_INNER_L3_IPV6_EXT,
1160         [IXGBE_PACKET_TYPE_IPV4_IPV6_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1161                 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1162                 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_TCP,
1163         [IXGBE_PACKET_TYPE_IPV4_IPV6_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1164                 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1165                 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_UDP,
1166         [IXGBE_PACKET_TYPE_IPV4_IPV6_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1167                 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1168                 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_SCTP,
1169         [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1170                 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1171                 RTE_PTYPE_INNER_L3_IPV6_EXT,
1172         [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1173                 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1174                 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_TCP,
1175         [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1176                 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1177                 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_UDP,
1178         [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT_SCTP] =
1179                 RTE_PTYPE_L2_ETHER |
1180                 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1181                 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_SCTP,
1182 };
1183
1184 const uint32_t
1185         ptype_table_tn[IXGBE_PACKET_TYPE_TN_MAX] __rte_cache_aligned = {
1186         [IXGBE_PACKET_TYPE_NVGRE] = RTE_PTYPE_L2_ETHER |
1187                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1188                 RTE_PTYPE_INNER_L2_ETHER,
1189         [IXGBE_PACKET_TYPE_NVGRE_IPV4] = RTE_PTYPE_L2_ETHER |
1190                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1191                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1192         [IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT] = RTE_PTYPE_L2_ETHER |
1193                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1194                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4_EXT,
1195         [IXGBE_PACKET_TYPE_NVGRE_IPV6] = RTE_PTYPE_L2_ETHER |
1196                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1197                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6,
1198         [IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6] = RTE_PTYPE_L2_ETHER |
1199                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1200                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1201         [IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1202                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1203                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6_EXT,
1204         [IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1205                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1206                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1207         [IXGBE_PACKET_TYPE_NVGRE_IPV4_TCP] = RTE_PTYPE_L2_ETHER |
1208                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1209                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4 |
1210                 RTE_PTYPE_INNER_L4_TCP,
1211         [IXGBE_PACKET_TYPE_NVGRE_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1212                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1213                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6 |
1214                 RTE_PTYPE_INNER_L4_TCP,
1215         [IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1216                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1217                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1218         [IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1219                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1220                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6_EXT |
1221                 RTE_PTYPE_INNER_L4_TCP,
1222         [IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_EXT_TCP] =
1223                 RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
1224                 RTE_PTYPE_TUNNEL_GRE | RTE_PTYPE_INNER_L2_ETHER |
1225                 RTE_PTYPE_INNER_L3_IPV4,
1226         [IXGBE_PACKET_TYPE_NVGRE_IPV4_UDP] = RTE_PTYPE_L2_ETHER |
1227                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1228                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4 |
1229                 RTE_PTYPE_INNER_L4_UDP,
1230         [IXGBE_PACKET_TYPE_NVGRE_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1231                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1232                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6 |
1233                 RTE_PTYPE_INNER_L4_UDP,
1234         [IXGBE_PACKET_TYPE_NVGRE_IPV6_SCTP] = RTE_PTYPE_L2_ETHER |
1235                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1236                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6 |
1237                 RTE_PTYPE_INNER_L4_SCTP,
1238         [IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1239                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1240                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1241         [IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1242                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1243                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6_EXT |
1244                 RTE_PTYPE_INNER_L4_UDP,
1245         [IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1246                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1247                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6_EXT |
1248                 RTE_PTYPE_INNER_L4_SCTP,
1249         [IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_EXT_UDP] =
1250                 RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
1251                 RTE_PTYPE_TUNNEL_GRE | RTE_PTYPE_INNER_L2_ETHER |
1252                 RTE_PTYPE_INNER_L3_IPV4,
1253         [IXGBE_PACKET_TYPE_NVGRE_IPV4_SCTP] = RTE_PTYPE_L2_ETHER |
1254                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1255                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4 |
1256                 RTE_PTYPE_INNER_L4_SCTP,
1257         [IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1258                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1259                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4_EXT |
1260                 RTE_PTYPE_INNER_L4_SCTP,
1261         [IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1262                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1263                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4_EXT |
1264                 RTE_PTYPE_INNER_L4_TCP,
1265         [IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1266                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1267                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4_EXT |
1268                 RTE_PTYPE_INNER_L4_UDP,
1269
1270         [IXGBE_PACKET_TYPE_VXLAN] = RTE_PTYPE_L2_ETHER |
1271                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1272                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER,
1273         [IXGBE_PACKET_TYPE_VXLAN_IPV4] = RTE_PTYPE_L2_ETHER |
1274                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1275                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1276                 RTE_PTYPE_INNER_L3_IPV4,
1277         [IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT] = RTE_PTYPE_L2_ETHER |
1278                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1279                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1280                 RTE_PTYPE_INNER_L3_IPV4_EXT,
1281         [IXGBE_PACKET_TYPE_VXLAN_IPV6] = RTE_PTYPE_L2_ETHER |
1282                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1283                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1284                 RTE_PTYPE_INNER_L3_IPV6,
1285         [IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6] = RTE_PTYPE_L2_ETHER |
1286                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1287                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1288                 RTE_PTYPE_INNER_L3_IPV4,
1289         [IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1290                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1291                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1292                 RTE_PTYPE_INNER_L3_IPV6_EXT,
1293         [IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1294                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1295                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1296                 RTE_PTYPE_INNER_L3_IPV4,
1297         [IXGBE_PACKET_TYPE_VXLAN_IPV4_TCP] = RTE_PTYPE_L2_ETHER |
1298                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1299                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1300                 RTE_PTYPE_INNER_L3_IPV4 | RTE_PTYPE_INNER_L4_TCP,
1301         [IXGBE_PACKET_TYPE_VXLAN_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1302                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1303                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1304                 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_TCP,
1305         [IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1306                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1307                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1308                 RTE_PTYPE_INNER_L3_IPV4,
1309         [IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1310                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1311                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1312                 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_TCP,
1313         [IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_EXT_TCP] =
1314                 RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
1315                 RTE_PTYPE_L4_UDP | RTE_PTYPE_TUNNEL_VXLAN |
1316                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1317         [IXGBE_PACKET_TYPE_VXLAN_IPV4_UDP] = RTE_PTYPE_L2_ETHER |
1318                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1319                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1320                 RTE_PTYPE_INNER_L3_IPV4 | RTE_PTYPE_INNER_L4_UDP,
1321         [IXGBE_PACKET_TYPE_VXLAN_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1322                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1323                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1324                 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_UDP,
1325         [IXGBE_PACKET_TYPE_VXLAN_IPV6_SCTP] = RTE_PTYPE_L2_ETHER |
1326                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1327                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1328                 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_SCTP,
1329         [IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1330                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1331                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1332                 RTE_PTYPE_INNER_L3_IPV4,
1333         [IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1334                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1335                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1336                 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_UDP,
1337         [IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1338                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1339                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1340                 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_SCTP,
1341         [IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_EXT_UDP] =
1342                 RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
1343                 RTE_PTYPE_L4_UDP | RTE_PTYPE_TUNNEL_VXLAN |
1344                 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1345         [IXGBE_PACKET_TYPE_VXLAN_IPV4_SCTP] = RTE_PTYPE_L2_ETHER |
1346                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1347                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1348                 RTE_PTYPE_INNER_L3_IPV4 | RTE_PTYPE_INNER_L4_SCTP,
1349         [IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1350                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1351                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1352                 RTE_PTYPE_INNER_L3_IPV4_EXT | RTE_PTYPE_INNER_L4_SCTP,
1353         [IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1354                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1355                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1356                 RTE_PTYPE_INNER_L3_IPV4_EXT | RTE_PTYPE_INNER_L4_TCP,
1357         [IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1358                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1359                 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1360                 RTE_PTYPE_INNER_L3_IPV4_EXT | RTE_PTYPE_INNER_L4_UDP,
1361 };
1362
1363 /* @note: fix ixgbe_dev_supported_ptypes_get() if any change here. */
1364 static inline uint32_t
1365 ixgbe_rxd_pkt_info_to_pkt_type(uint32_t pkt_info, uint16_t ptype_mask)
1366 {
1367
1368         if (unlikely(pkt_info & IXGBE_RXDADV_PKTTYPE_ETQF))
1369                 return RTE_PTYPE_UNKNOWN;
1370
1371         pkt_info = (pkt_info >> IXGBE_PACKET_TYPE_SHIFT) & ptype_mask;
1372
1373         /* For tunnel packet */
1374         if (pkt_info & IXGBE_PACKET_TYPE_TUNNEL_BIT) {
1375                 /* Remove the tunnel bit to save the space. */
1376                 pkt_info &= IXGBE_PACKET_TYPE_MASK_TUNNEL;
1377                 return ptype_table_tn[pkt_info];
1378         }
1379
1380         /**
1381          * For x550, if it's not tunnel,
1382          * tunnel type bit should be set to 0.
1383          * Reuse 82599's mask.
1384          */
1385         pkt_info &= IXGBE_PACKET_TYPE_MASK_82599;
1386
1387         return ptype_table[pkt_info];
1388 }
1389
1390 static inline uint64_t
1391 ixgbe_rxd_pkt_info_to_pkt_flags(uint16_t pkt_info)
1392 {
1393         static uint64_t ip_rss_types_map[16] __rte_cache_aligned = {
1394                 0, PKT_RX_RSS_HASH, PKT_RX_RSS_HASH, PKT_RX_RSS_HASH,
1395                 0, PKT_RX_RSS_HASH, 0, PKT_RX_RSS_HASH,
1396                 PKT_RX_RSS_HASH, 0, 0, 0,
1397                 0, 0, 0,  PKT_RX_FDIR,
1398         };
1399 #ifdef RTE_LIBRTE_IEEE1588
1400         static uint64_t ip_pkt_etqf_map[8] = {
1401                 0, 0, 0, PKT_RX_IEEE1588_PTP,
1402                 0, 0, 0, 0,
1403         };
1404
1405         if (likely(pkt_info & IXGBE_RXDADV_PKTTYPE_ETQF))
1406                 return ip_pkt_etqf_map[(pkt_info >> 4) & 0X07] |
1407                                 ip_rss_types_map[pkt_info & 0XF];
1408         else
1409                 return ip_rss_types_map[pkt_info & 0XF];
1410 #else
1411         return ip_rss_types_map[pkt_info & 0XF];
1412 #endif
1413 }
1414
1415 static inline uint64_t
1416 rx_desc_status_to_pkt_flags(uint32_t rx_status, uint64_t vlan_flags)
1417 {
1418         uint64_t pkt_flags;
1419
1420         /*
1421          * Check if VLAN present only.
1422          * Do not check whether L3/L4 rx checksum done by NIC or not,
1423          * That can be found from rte_eth_rxmode.offloads flag
1424          */
1425         pkt_flags = (rx_status & IXGBE_RXD_STAT_VP) ?  vlan_flags : 0;
1426
1427 #ifdef RTE_LIBRTE_IEEE1588
1428         if (rx_status & IXGBE_RXD_STAT_TMST)
1429                 pkt_flags = pkt_flags | PKT_RX_IEEE1588_TMST;
1430 #endif
1431         return pkt_flags;
1432 }
1433
1434 static inline uint64_t
1435 rx_desc_error_to_pkt_flags(uint32_t rx_status)
1436 {
1437         uint64_t pkt_flags;
1438
1439         /*
1440          * Bit 31: IPE, IPv4 checksum error
1441          * Bit 30: L4I, L4I integrity error
1442          */
1443         static uint64_t error_to_pkt_flags_map[4] = {
1444                 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD,
1445                 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD,
1446                 PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_GOOD,
1447                 PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD
1448         };
1449         pkt_flags = error_to_pkt_flags_map[(rx_status >>
1450                 IXGBE_RXDADV_ERR_CKSUM_BIT) & IXGBE_RXDADV_ERR_CKSUM_MSK];
1451
1452         if ((rx_status & IXGBE_RXD_STAT_OUTERIPCS) &&
1453             (rx_status & IXGBE_RXDADV_ERR_OUTERIPER)) {
1454                 pkt_flags |= PKT_RX_EIP_CKSUM_BAD;
1455         }
1456
1457 #ifdef RTE_LIBRTE_SECURITY
1458         if (rx_status & IXGBE_RXD_STAT_SECP) {
1459                 pkt_flags |= PKT_RX_SEC_OFFLOAD;
1460                 if (rx_status & IXGBE_RXDADV_LNKSEC_ERROR_BAD_SIG)
1461                         pkt_flags |= PKT_RX_SEC_OFFLOAD_FAILED;
1462         }
1463 #endif
1464
1465         return pkt_flags;
1466 }
1467
1468 /*
1469  * LOOK_AHEAD defines how many desc statuses to check beyond the
1470  * current descriptor.
1471  * It must be a pound define for optimal performance.
1472  * Do not change the value of LOOK_AHEAD, as the ixgbe_rx_scan_hw_ring
1473  * function only works with LOOK_AHEAD=8.
1474  */
1475 #define LOOK_AHEAD 8
1476 #if (LOOK_AHEAD != 8)
1477 #error "PMD IXGBE: LOOK_AHEAD must be 8\n"
1478 #endif
1479 static inline int
1480 ixgbe_rx_scan_hw_ring(struct ixgbe_rx_queue *rxq)
1481 {
1482         volatile union ixgbe_adv_rx_desc *rxdp;
1483         struct ixgbe_rx_entry *rxep;
1484         struct rte_mbuf *mb;
1485         uint16_t pkt_len;
1486         uint64_t pkt_flags;
1487         int nb_dd;
1488         uint32_t s[LOOK_AHEAD];
1489         uint32_t pkt_info[LOOK_AHEAD];
1490         int i, j, nb_rx = 0;
1491         uint32_t status;
1492         uint64_t vlan_flags = rxq->vlan_flags;
1493
1494         /* get references to current descriptor and S/W ring entry */
1495         rxdp = &rxq->rx_ring[rxq->rx_tail];
1496         rxep = &rxq->sw_ring[rxq->rx_tail];
1497
1498         status = rxdp->wb.upper.status_error;
1499         /* check to make sure there is at least 1 packet to receive */
1500         if (!(status & rte_cpu_to_le_32(IXGBE_RXDADV_STAT_DD)))
1501                 return 0;
1502
1503         /*
1504          * Scan LOOK_AHEAD descriptors at a time to determine which descriptors
1505          * reference packets that are ready to be received.
1506          */
1507         for (i = 0; i < RTE_PMD_IXGBE_RX_MAX_BURST;
1508              i += LOOK_AHEAD, rxdp += LOOK_AHEAD, rxep += LOOK_AHEAD) {
1509                 /* Read desc statuses backwards to avoid race condition */
1510                 for (j = 0; j < LOOK_AHEAD; j++)
1511                         s[j] = rte_le_to_cpu_32(rxdp[j].wb.upper.status_error);
1512
1513                 rte_smp_rmb();
1514
1515                 /* Compute how many status bits were set */
1516                 for (nb_dd = 0; nb_dd < LOOK_AHEAD &&
1517                                 (s[nb_dd] & IXGBE_RXDADV_STAT_DD); nb_dd++)
1518                         ;
1519
1520                 for (j = 0; j < nb_dd; j++)
1521                         pkt_info[j] = rte_le_to_cpu_32(rxdp[j].wb.lower.
1522                                                        lo_dword.data);
1523
1524                 nb_rx += nb_dd;
1525
1526                 /* Translate descriptor info to mbuf format */
1527                 for (j = 0; j < nb_dd; ++j) {
1528                         mb = rxep[j].mbuf;
1529                         pkt_len = rte_le_to_cpu_16(rxdp[j].wb.upper.length) -
1530                                   rxq->crc_len;
1531                         mb->data_len = pkt_len;
1532                         mb->pkt_len = pkt_len;
1533                         mb->vlan_tci = rte_le_to_cpu_16(rxdp[j].wb.upper.vlan);
1534
1535                         /* convert descriptor fields to rte mbuf flags */
1536                         pkt_flags = rx_desc_status_to_pkt_flags(s[j],
1537                                 vlan_flags);
1538                         pkt_flags |= rx_desc_error_to_pkt_flags(s[j]);
1539                         pkt_flags |= ixgbe_rxd_pkt_info_to_pkt_flags
1540                                         ((uint16_t)pkt_info[j]);
1541                         mb->ol_flags = pkt_flags;
1542                         mb->packet_type =
1543                                 ixgbe_rxd_pkt_info_to_pkt_type
1544                                         (pkt_info[j], rxq->pkt_type_mask);
1545
1546                         if (likely(pkt_flags & PKT_RX_RSS_HASH))
1547                                 mb->hash.rss = rte_le_to_cpu_32(
1548                                     rxdp[j].wb.lower.hi_dword.rss);
1549                         else if (pkt_flags & PKT_RX_FDIR) {
1550                                 mb->hash.fdir.hash = rte_le_to_cpu_16(
1551                                     rxdp[j].wb.lower.hi_dword.csum_ip.csum) &
1552                                     IXGBE_ATR_HASH_MASK;
1553                                 mb->hash.fdir.id = rte_le_to_cpu_16(
1554                                     rxdp[j].wb.lower.hi_dword.csum_ip.ip_id);
1555                         }
1556                 }
1557
1558                 /* Move mbuf pointers from the S/W ring to the stage */
1559                 for (j = 0; j < LOOK_AHEAD; ++j) {
1560                         rxq->rx_stage[i + j] = rxep[j].mbuf;
1561                 }
1562
1563                 /* stop if all requested packets could not be received */
1564                 if (nb_dd != LOOK_AHEAD)
1565                         break;
1566         }
1567
1568         /* clear software ring entries so we can cleanup correctly */
1569         for (i = 0; i < nb_rx; ++i) {
1570                 rxq->sw_ring[rxq->rx_tail + i].mbuf = NULL;
1571         }
1572
1573
1574         return nb_rx;
1575 }
1576
1577 static inline int
1578 ixgbe_rx_alloc_bufs(struct ixgbe_rx_queue *rxq, bool reset_mbuf)
1579 {
1580         volatile union ixgbe_adv_rx_desc *rxdp;
1581         struct ixgbe_rx_entry *rxep;
1582         struct rte_mbuf *mb;
1583         uint16_t alloc_idx;
1584         __le64 dma_addr;
1585         int diag, i;
1586
1587         /* allocate buffers in bulk directly into the S/W ring */
1588         alloc_idx = rxq->rx_free_trigger - (rxq->rx_free_thresh - 1);
1589         rxep = &rxq->sw_ring[alloc_idx];
1590         diag = rte_mempool_get_bulk(rxq->mb_pool, (void *)rxep,
1591                                     rxq->rx_free_thresh);
1592         if (unlikely(diag != 0))
1593                 return -ENOMEM;
1594
1595         rxdp = &rxq->rx_ring[alloc_idx];
1596         for (i = 0; i < rxq->rx_free_thresh; ++i) {
1597                 /* populate the static rte mbuf fields */
1598                 mb = rxep[i].mbuf;
1599                 if (reset_mbuf) {
1600                         mb->port = rxq->port_id;
1601                 }
1602
1603                 rte_mbuf_refcnt_set(mb, 1);
1604                 mb->data_off = RTE_PKTMBUF_HEADROOM;
1605
1606                 /* populate the descriptors */
1607                 dma_addr = rte_cpu_to_le_64(rte_mbuf_data_iova_default(mb));
1608                 rxdp[i].read.hdr_addr = 0;
1609                 rxdp[i].read.pkt_addr = dma_addr;
1610         }
1611
1612         /* update state of internal queue structure */
1613         rxq->rx_free_trigger = rxq->rx_free_trigger + rxq->rx_free_thresh;
1614         if (rxq->rx_free_trigger >= rxq->nb_rx_desc)
1615                 rxq->rx_free_trigger = rxq->rx_free_thresh - 1;
1616
1617         /* no errors */
1618         return 0;
1619 }
1620
1621 static inline uint16_t
1622 ixgbe_rx_fill_from_stage(struct ixgbe_rx_queue *rxq, struct rte_mbuf **rx_pkts,
1623                          uint16_t nb_pkts)
1624 {
1625         struct rte_mbuf **stage = &rxq->rx_stage[rxq->rx_next_avail];
1626         int i;
1627
1628         /* how many packets are ready to return? */
1629         nb_pkts = (uint16_t)RTE_MIN(nb_pkts, rxq->rx_nb_avail);
1630
1631         /* copy mbuf pointers to the application's packet list */
1632         for (i = 0; i < nb_pkts; ++i)
1633                 rx_pkts[i] = stage[i];
1634
1635         /* update internal queue state */
1636         rxq->rx_nb_avail = (uint16_t)(rxq->rx_nb_avail - nb_pkts);
1637         rxq->rx_next_avail = (uint16_t)(rxq->rx_next_avail + nb_pkts);
1638
1639         return nb_pkts;
1640 }
1641
1642 static inline uint16_t
1643 rx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
1644              uint16_t nb_pkts)
1645 {
1646         struct ixgbe_rx_queue *rxq = (struct ixgbe_rx_queue *)rx_queue;
1647         uint16_t nb_rx = 0;
1648
1649         /* Any previously recv'd pkts will be returned from the Rx stage */
1650         if (rxq->rx_nb_avail)
1651                 return ixgbe_rx_fill_from_stage(rxq, rx_pkts, nb_pkts);
1652
1653         /* Scan the H/W ring for packets to receive */
1654         nb_rx = (uint16_t)ixgbe_rx_scan_hw_ring(rxq);
1655
1656         /* update internal queue state */
1657         rxq->rx_next_avail = 0;
1658         rxq->rx_nb_avail = nb_rx;
1659         rxq->rx_tail = (uint16_t)(rxq->rx_tail + nb_rx);
1660
1661         /* if required, allocate new buffers to replenish descriptors */
1662         if (rxq->rx_tail > rxq->rx_free_trigger) {
1663                 uint16_t cur_free_trigger = rxq->rx_free_trigger;
1664
1665                 if (ixgbe_rx_alloc_bufs(rxq, true) != 0) {
1666                         int i, j;
1667
1668                         PMD_RX_LOG(DEBUG, "RX mbuf alloc failed port_id=%u "
1669                                    "queue_id=%u", (unsigned) rxq->port_id,
1670                                    (unsigned) rxq->queue_id);
1671
1672                         rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed +=
1673                                 rxq->rx_free_thresh;
1674
1675                         /*
1676                          * Need to rewind any previous receives if we cannot
1677                          * allocate new buffers to replenish the old ones.
1678                          */
1679                         rxq->rx_nb_avail = 0;
1680                         rxq->rx_tail = (uint16_t)(rxq->rx_tail - nb_rx);
1681                         for (i = 0, j = rxq->rx_tail; i < nb_rx; ++i, ++j)
1682                                 rxq->sw_ring[j].mbuf = rxq->rx_stage[i];
1683
1684                         return 0;
1685                 }
1686
1687                 /* update tail pointer */
1688                 rte_wmb();
1689                 IXGBE_PCI_REG_WRITE_RELAXED(rxq->rdt_reg_addr,
1690                                             cur_free_trigger);
1691         }
1692
1693         if (rxq->rx_tail >= rxq->nb_rx_desc)
1694                 rxq->rx_tail = 0;
1695
1696         /* received any packets this loop? */
1697         if (rxq->rx_nb_avail)
1698                 return ixgbe_rx_fill_from_stage(rxq, rx_pkts, nb_pkts);
1699
1700         return 0;
1701 }
1702
1703 /* split requests into chunks of size RTE_PMD_IXGBE_RX_MAX_BURST */
1704 uint16_t
1705 ixgbe_recv_pkts_bulk_alloc(void *rx_queue, struct rte_mbuf **rx_pkts,
1706                            uint16_t nb_pkts)
1707 {
1708         uint16_t nb_rx;
1709
1710         if (unlikely(nb_pkts == 0))
1711                 return 0;
1712
1713         if (likely(nb_pkts <= RTE_PMD_IXGBE_RX_MAX_BURST))
1714                 return rx_recv_pkts(rx_queue, rx_pkts, nb_pkts);
1715
1716         /* request is relatively large, chunk it up */
1717         nb_rx = 0;
1718         while (nb_pkts) {
1719                 uint16_t ret, n;
1720
1721                 n = (uint16_t)RTE_MIN(nb_pkts, RTE_PMD_IXGBE_RX_MAX_BURST);
1722                 ret = rx_recv_pkts(rx_queue, &rx_pkts[nb_rx], n);
1723                 nb_rx = (uint16_t)(nb_rx + ret);
1724                 nb_pkts = (uint16_t)(nb_pkts - ret);
1725                 if (ret < n)
1726                         break;
1727         }
1728
1729         return nb_rx;
1730 }
1731
1732 uint16_t
1733 ixgbe_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
1734                 uint16_t nb_pkts)
1735 {
1736         struct ixgbe_rx_queue *rxq;
1737         volatile union ixgbe_adv_rx_desc *rx_ring;
1738         volatile union ixgbe_adv_rx_desc *rxdp;
1739         struct ixgbe_rx_entry *sw_ring;
1740         struct ixgbe_rx_entry *rxe;
1741         struct rte_mbuf *rxm;
1742         struct rte_mbuf *nmb;
1743         union ixgbe_adv_rx_desc rxd;
1744         uint64_t dma_addr;
1745         uint32_t staterr;
1746         uint32_t pkt_info;
1747         uint16_t pkt_len;
1748         uint16_t rx_id;
1749         uint16_t nb_rx;
1750         uint16_t nb_hold;
1751         uint64_t pkt_flags;
1752         uint64_t vlan_flags;
1753
1754         nb_rx = 0;
1755         nb_hold = 0;
1756         rxq = rx_queue;
1757         rx_id = rxq->rx_tail;
1758         rx_ring = rxq->rx_ring;
1759         sw_ring = rxq->sw_ring;
1760         vlan_flags = rxq->vlan_flags;
1761         while (nb_rx < nb_pkts) {
1762                 /*
1763                  * The order of operations here is important as the DD status
1764                  * bit must not be read after any other descriptor fields.
1765                  * rx_ring and rxdp are pointing to volatile data so the order
1766                  * of accesses cannot be reordered by the compiler. If they were
1767                  * not volatile, they could be reordered which could lead to
1768                  * using invalid descriptor fields when read from rxd.
1769                  */
1770                 rxdp = &rx_ring[rx_id];
1771                 staterr = rxdp->wb.upper.status_error;
1772                 if (!(staterr & rte_cpu_to_le_32(IXGBE_RXDADV_STAT_DD)))
1773                         break;
1774                 rxd = *rxdp;
1775
1776                 /*
1777                  * End of packet.
1778                  *
1779                  * If the IXGBE_RXDADV_STAT_EOP flag is not set, the RX packet
1780                  * is likely to be invalid and to be dropped by the various
1781                  * validation checks performed by the network stack.
1782                  *
1783                  * Allocate a new mbuf to replenish the RX ring descriptor.
1784                  * If the allocation fails:
1785                  *    - arrange for that RX descriptor to be the first one
1786                  *      being parsed the next time the receive function is
1787                  *      invoked [on the same queue].
1788                  *
1789                  *    - Stop parsing the RX ring and return immediately.
1790                  *
1791                  * This policy do not drop the packet received in the RX
1792                  * descriptor for which the allocation of a new mbuf failed.
1793                  * Thus, it allows that packet to be later retrieved if
1794                  * mbuf have been freed in the mean time.
1795                  * As a side effect, holding RX descriptors instead of
1796                  * systematically giving them back to the NIC may lead to
1797                  * RX ring exhaustion situations.
1798                  * However, the NIC can gracefully prevent such situations
1799                  * to happen by sending specific "back-pressure" flow control
1800                  * frames to its peer(s).
1801                  */
1802                 PMD_RX_LOG(DEBUG, "port_id=%u queue_id=%u rx_id=%u "
1803                            "ext_err_stat=0x%08x pkt_len=%u",
1804                            (unsigned) rxq->port_id, (unsigned) rxq->queue_id,
1805                            (unsigned) rx_id, (unsigned) staterr,
1806                            (unsigned) rte_le_to_cpu_16(rxd.wb.upper.length));
1807
1808                 nmb = rte_mbuf_raw_alloc(rxq->mb_pool);
1809                 if (nmb == NULL) {
1810                         PMD_RX_LOG(DEBUG, "RX mbuf alloc failed port_id=%u "
1811                                    "queue_id=%u", (unsigned) rxq->port_id,
1812                                    (unsigned) rxq->queue_id);
1813                         rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed++;
1814                         break;
1815                 }
1816
1817                 nb_hold++;
1818                 rxe = &sw_ring[rx_id];
1819                 rx_id++;
1820                 if (rx_id == rxq->nb_rx_desc)
1821                         rx_id = 0;
1822
1823                 /* Prefetch next mbuf while processing current one. */
1824                 rte_ixgbe_prefetch(sw_ring[rx_id].mbuf);
1825
1826                 /*
1827                  * When next RX descriptor is on a cache-line boundary,
1828                  * prefetch the next 4 RX descriptors and the next 8 pointers
1829                  * to mbufs.
1830                  */
1831                 if ((rx_id & 0x3) == 0) {
1832                         rte_ixgbe_prefetch(&rx_ring[rx_id]);
1833                         rte_ixgbe_prefetch(&sw_ring[rx_id]);
1834                 }
1835
1836                 rxm = rxe->mbuf;
1837                 rxe->mbuf = nmb;
1838                 dma_addr =
1839                         rte_cpu_to_le_64(rte_mbuf_data_iova_default(nmb));
1840                 rxdp->read.hdr_addr = 0;
1841                 rxdp->read.pkt_addr = dma_addr;
1842
1843                 /*
1844                  * Initialize the returned mbuf.
1845                  * 1) setup generic mbuf fields:
1846                  *    - number of segments,
1847                  *    - next segment,
1848                  *    - packet length,
1849                  *    - RX port identifier.
1850                  * 2) integrate hardware offload data, if any:
1851                  *    - RSS flag & hash,
1852                  *    - IP checksum flag,
1853                  *    - VLAN TCI, if any,
1854                  *    - error flags.
1855                  */
1856                 pkt_len = (uint16_t) (rte_le_to_cpu_16(rxd.wb.upper.length) -
1857                                       rxq->crc_len);
1858                 rxm->data_off = RTE_PKTMBUF_HEADROOM;
1859                 rte_packet_prefetch((char *)rxm->buf_addr + rxm->data_off);
1860                 rxm->nb_segs = 1;
1861                 rxm->next = NULL;
1862                 rxm->pkt_len = pkt_len;
1863                 rxm->data_len = pkt_len;
1864                 rxm->port = rxq->port_id;
1865
1866                 pkt_info = rte_le_to_cpu_32(rxd.wb.lower.lo_dword.data);
1867                 /* Only valid if PKT_RX_VLAN set in pkt_flags */
1868                 rxm->vlan_tci = rte_le_to_cpu_16(rxd.wb.upper.vlan);
1869
1870                 pkt_flags = rx_desc_status_to_pkt_flags(staterr, vlan_flags);
1871                 pkt_flags = pkt_flags | rx_desc_error_to_pkt_flags(staterr);
1872                 pkt_flags = pkt_flags |
1873                         ixgbe_rxd_pkt_info_to_pkt_flags((uint16_t)pkt_info);
1874                 rxm->ol_flags = pkt_flags;
1875                 rxm->packet_type =
1876                         ixgbe_rxd_pkt_info_to_pkt_type(pkt_info,
1877                                                        rxq->pkt_type_mask);
1878
1879                 if (likely(pkt_flags & PKT_RX_RSS_HASH))
1880                         rxm->hash.rss = rte_le_to_cpu_32(
1881                                                 rxd.wb.lower.hi_dword.rss);
1882                 else if (pkt_flags & PKT_RX_FDIR) {
1883                         rxm->hash.fdir.hash = rte_le_to_cpu_16(
1884                                         rxd.wb.lower.hi_dword.csum_ip.csum) &
1885                                         IXGBE_ATR_HASH_MASK;
1886                         rxm->hash.fdir.id = rte_le_to_cpu_16(
1887                                         rxd.wb.lower.hi_dword.csum_ip.ip_id);
1888                 }
1889                 /*
1890                  * Store the mbuf address into the next entry of the array
1891                  * of returned packets.
1892                  */
1893                 rx_pkts[nb_rx++] = rxm;
1894         }
1895         rxq->rx_tail = rx_id;
1896
1897         /*
1898          * If the number of free RX descriptors is greater than the RX free
1899          * threshold of the queue, advance the Receive Descriptor Tail (RDT)
1900          * register.
1901          * Update the RDT with the value of the last processed RX descriptor
1902          * minus 1, to guarantee that the RDT register is never equal to the
1903          * RDH register, which creates a "full" ring situtation from the
1904          * hardware point of view...
1905          */
1906         nb_hold = (uint16_t) (nb_hold + rxq->nb_rx_hold);
1907         if (nb_hold > rxq->rx_free_thresh) {
1908                 PMD_RX_LOG(DEBUG, "port_id=%u queue_id=%u rx_tail=%u "
1909                            "nb_hold=%u nb_rx=%u",
1910                            (unsigned) rxq->port_id, (unsigned) rxq->queue_id,
1911                            (unsigned) rx_id, (unsigned) nb_hold,
1912                            (unsigned) nb_rx);
1913                 rx_id = (uint16_t) ((rx_id == 0) ?
1914                                      (rxq->nb_rx_desc - 1) : (rx_id - 1));
1915                 IXGBE_PCI_REG_WRITE(rxq->rdt_reg_addr, rx_id);
1916                 nb_hold = 0;
1917         }
1918         rxq->nb_rx_hold = nb_hold;
1919         return nb_rx;
1920 }
1921
1922 /**
1923  * Detect an RSC descriptor.
1924  */
1925 static inline uint32_t
1926 ixgbe_rsc_count(union ixgbe_adv_rx_desc *rx)
1927 {
1928         return (rte_le_to_cpu_32(rx->wb.lower.lo_dword.data) &
1929                 IXGBE_RXDADV_RSCCNT_MASK) >> IXGBE_RXDADV_RSCCNT_SHIFT;
1930 }
1931
1932 /**
1933  * ixgbe_fill_cluster_head_buf - fill the first mbuf of the returned packet
1934  *
1935  * Fill the following info in the HEAD buffer of the Rx cluster:
1936  *    - RX port identifier
1937  *    - hardware offload data, if any:
1938  *      - RSS flag & hash
1939  *      - IP checksum flag
1940  *      - VLAN TCI, if any
1941  *      - error flags
1942  * @head HEAD of the packet cluster
1943  * @desc HW descriptor to get data from
1944  * @rxq Pointer to the Rx queue
1945  */
1946 static inline void
1947 ixgbe_fill_cluster_head_buf(
1948         struct rte_mbuf *head,
1949         union ixgbe_adv_rx_desc *desc,
1950         struct ixgbe_rx_queue *rxq,
1951         uint32_t staterr)
1952 {
1953         uint32_t pkt_info;
1954         uint64_t pkt_flags;
1955
1956         head->port = rxq->port_id;
1957
1958         /* The vlan_tci field is only valid when PKT_RX_VLAN is
1959          * set in the pkt_flags field.
1960          */
1961         head->vlan_tci = rte_le_to_cpu_16(desc->wb.upper.vlan);
1962         pkt_info = rte_le_to_cpu_32(desc->wb.lower.lo_dword.data);
1963         pkt_flags = rx_desc_status_to_pkt_flags(staterr, rxq->vlan_flags);
1964         pkt_flags |= rx_desc_error_to_pkt_flags(staterr);
1965         pkt_flags |= ixgbe_rxd_pkt_info_to_pkt_flags((uint16_t)pkt_info);
1966         head->ol_flags = pkt_flags;
1967         head->packet_type =
1968                 ixgbe_rxd_pkt_info_to_pkt_type(pkt_info, rxq->pkt_type_mask);
1969
1970         if (likely(pkt_flags & PKT_RX_RSS_HASH))
1971                 head->hash.rss = rte_le_to_cpu_32(desc->wb.lower.hi_dword.rss);
1972         else if (pkt_flags & PKT_RX_FDIR) {
1973                 head->hash.fdir.hash =
1974                         rte_le_to_cpu_16(desc->wb.lower.hi_dword.csum_ip.csum)
1975                                                           & IXGBE_ATR_HASH_MASK;
1976                 head->hash.fdir.id =
1977                         rte_le_to_cpu_16(desc->wb.lower.hi_dword.csum_ip.ip_id);
1978         }
1979 }
1980
1981 /**
1982  * ixgbe_recv_pkts_lro - receive handler for and LRO case.
1983  *
1984  * @rx_queue Rx queue handle
1985  * @rx_pkts table of received packets
1986  * @nb_pkts size of rx_pkts table
1987  * @bulk_alloc if TRUE bulk allocation is used for a HW ring refilling
1988  *
1989  * Handles the Rx HW ring completions when RSC feature is configured. Uses an
1990  * additional ring of ixgbe_rsc_entry's that will hold the relevant RSC info.
1991  *
1992  * We use the same logic as in Linux and in FreeBSD ixgbe drivers:
1993  * 1) When non-EOP RSC completion arrives:
1994  *    a) Update the HEAD of the current RSC aggregation cluster with the new
1995  *       segment's data length.
1996  *    b) Set the "next" pointer of the current segment to point to the segment
1997  *       at the NEXTP index.
1998  *    c) Pass the HEAD of RSC aggregation cluster on to the next NEXTP entry
1999  *       in the sw_rsc_ring.
2000  * 2) When EOP arrives we just update the cluster's total length and offload
2001  *    flags and deliver the cluster up to the upper layers. In our case - put it
2002  *    in the rx_pkts table.
2003  *
2004  * Returns the number of received packets/clusters (according to the "bulk
2005  * receive" interface).
2006  */
2007 static inline uint16_t
2008 ixgbe_recv_pkts_lro(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts,
2009                     bool bulk_alloc)
2010 {
2011         struct ixgbe_rx_queue *rxq = rx_queue;
2012         volatile union ixgbe_adv_rx_desc *rx_ring = rxq->rx_ring;
2013         struct ixgbe_rx_entry *sw_ring = rxq->sw_ring;
2014         struct ixgbe_scattered_rx_entry *sw_sc_ring = rxq->sw_sc_ring;
2015         uint16_t rx_id = rxq->rx_tail;
2016         uint16_t nb_rx = 0;
2017         uint16_t nb_hold = rxq->nb_rx_hold;
2018         uint16_t prev_id = rxq->rx_tail;
2019
2020         while (nb_rx < nb_pkts) {
2021                 bool eop;
2022                 struct ixgbe_rx_entry *rxe;
2023                 struct ixgbe_scattered_rx_entry *sc_entry;
2024                 struct ixgbe_scattered_rx_entry *next_sc_entry;
2025                 struct ixgbe_rx_entry *next_rxe = NULL;
2026                 struct rte_mbuf *first_seg;
2027                 struct rte_mbuf *rxm;
2028                 struct rte_mbuf *nmb;
2029                 union ixgbe_adv_rx_desc rxd;
2030                 uint16_t data_len;
2031                 uint16_t next_id;
2032                 volatile union ixgbe_adv_rx_desc *rxdp;
2033                 uint32_t staterr;
2034
2035 next_desc:
2036                 /*
2037                  * The code in this whole file uses the volatile pointer to
2038                  * ensure the read ordering of the status and the rest of the
2039                  * descriptor fields (on the compiler level only!!!). This is so
2040                  * UGLY - why not to just use the compiler barrier instead? DPDK
2041                  * even has the rte_compiler_barrier() for that.
2042                  *
2043                  * But most importantly this is just wrong because this doesn't
2044                  * ensure memory ordering in a general case at all. For
2045                  * instance, DPDK is supposed to work on Power CPUs where
2046                  * compiler barrier may just not be enough!
2047                  *
2048                  * I tried to write only this function properly to have a
2049                  * starting point (as a part of an LRO/RSC series) but the
2050                  * compiler cursed at me when I tried to cast away the
2051                  * "volatile" from rx_ring (yes, it's volatile too!!!). So, I'm
2052                  * keeping it the way it is for now.
2053                  *
2054                  * The code in this file is broken in so many other places and
2055                  * will just not work on a big endian CPU anyway therefore the
2056                  * lines below will have to be revisited together with the rest
2057                  * of the ixgbe PMD.
2058                  *
2059                  * TODO:
2060                  *    - Get rid of "volatile" crap and let the compiler do its
2061                  *      job.
2062                  *    - Use the proper memory barrier (rte_rmb()) to ensure the
2063                  *      memory ordering below.
2064                  */
2065                 rxdp = &rx_ring[rx_id];
2066                 staterr = rte_le_to_cpu_32(rxdp->wb.upper.status_error);
2067
2068                 if (!(staterr & IXGBE_RXDADV_STAT_DD))
2069                         break;
2070
2071                 rxd = *rxdp;
2072
2073                 PMD_RX_LOG(DEBUG, "port_id=%u queue_id=%u rx_id=%u "
2074                                   "staterr=0x%x data_len=%u",
2075                            rxq->port_id, rxq->queue_id, rx_id, staterr,
2076                            rte_le_to_cpu_16(rxd.wb.upper.length));
2077
2078                 if (!bulk_alloc) {
2079                         nmb = rte_mbuf_raw_alloc(rxq->mb_pool);
2080                         if (nmb == NULL) {
2081                                 PMD_RX_LOG(DEBUG, "RX mbuf alloc failed "
2082                                                   "port_id=%u queue_id=%u",
2083                                            rxq->port_id, rxq->queue_id);
2084
2085                                 rte_eth_devices[rxq->port_id].data->
2086                                                         rx_mbuf_alloc_failed++;
2087                                 break;
2088                         }
2089                 } else if (nb_hold > rxq->rx_free_thresh) {
2090                         uint16_t next_rdt = rxq->rx_free_trigger;
2091
2092                         if (!ixgbe_rx_alloc_bufs(rxq, false)) {
2093                                 rte_wmb();
2094                                 IXGBE_PCI_REG_WRITE_RELAXED(rxq->rdt_reg_addr,
2095                                                             next_rdt);
2096                                 nb_hold -= rxq->rx_free_thresh;
2097                         } else {
2098                                 PMD_RX_LOG(DEBUG, "RX bulk alloc failed "
2099                                                   "port_id=%u queue_id=%u",
2100                                            rxq->port_id, rxq->queue_id);
2101
2102                                 rte_eth_devices[rxq->port_id].data->
2103                                                         rx_mbuf_alloc_failed++;
2104                                 break;
2105                         }
2106                 }
2107
2108                 nb_hold++;
2109                 rxe = &sw_ring[rx_id];
2110                 eop = staterr & IXGBE_RXDADV_STAT_EOP;
2111
2112                 next_id = rx_id + 1;
2113                 if (next_id == rxq->nb_rx_desc)
2114                         next_id = 0;
2115
2116                 /* Prefetch next mbuf while processing current one. */
2117                 rte_ixgbe_prefetch(sw_ring[next_id].mbuf);
2118
2119                 /*
2120                  * When next RX descriptor is on a cache-line boundary,
2121                  * prefetch the next 4 RX descriptors and the next 4 pointers
2122                  * to mbufs.
2123                  */
2124                 if ((next_id & 0x3) == 0) {
2125                         rte_ixgbe_prefetch(&rx_ring[next_id]);
2126                         rte_ixgbe_prefetch(&sw_ring[next_id]);
2127                 }
2128
2129                 rxm = rxe->mbuf;
2130
2131                 if (!bulk_alloc) {
2132                         __le64 dma =
2133                           rte_cpu_to_le_64(rte_mbuf_data_iova_default(nmb));
2134                         /*
2135                          * Update RX descriptor with the physical address of the
2136                          * new data buffer of the new allocated mbuf.
2137                          */
2138                         rxe->mbuf = nmb;
2139
2140                         rxm->data_off = RTE_PKTMBUF_HEADROOM;
2141                         rxdp->read.hdr_addr = 0;
2142                         rxdp->read.pkt_addr = dma;
2143                 } else
2144                         rxe->mbuf = NULL;
2145
2146                 /*
2147                  * Set data length & data buffer address of mbuf.
2148                  */
2149                 data_len = rte_le_to_cpu_16(rxd.wb.upper.length);
2150                 rxm->data_len = data_len;
2151
2152                 if (!eop) {
2153                         uint16_t nextp_id;
2154                         /*
2155                          * Get next descriptor index:
2156                          *  - For RSC it's in the NEXTP field.
2157                          *  - For a scattered packet - it's just a following
2158                          *    descriptor.
2159                          */
2160                         if (ixgbe_rsc_count(&rxd))
2161                                 nextp_id =
2162                                         (staterr & IXGBE_RXDADV_NEXTP_MASK) >>
2163                                                        IXGBE_RXDADV_NEXTP_SHIFT;
2164                         else
2165                                 nextp_id = next_id;
2166
2167                         next_sc_entry = &sw_sc_ring[nextp_id];
2168                         next_rxe = &sw_ring[nextp_id];
2169                         rte_ixgbe_prefetch(next_rxe);
2170                 }
2171
2172                 sc_entry = &sw_sc_ring[rx_id];
2173                 first_seg = sc_entry->fbuf;
2174                 sc_entry->fbuf = NULL;
2175
2176                 /*
2177                  * If this is the first buffer of the received packet,
2178                  * set the pointer to the first mbuf of the packet and
2179                  * initialize its context.
2180                  * Otherwise, update the total length and the number of segments
2181                  * of the current scattered packet, and update the pointer to
2182                  * the last mbuf of the current packet.
2183                  */
2184                 if (first_seg == NULL) {
2185                         first_seg = rxm;
2186                         first_seg->pkt_len = data_len;
2187                         first_seg->nb_segs = 1;
2188                 } else {
2189                         first_seg->pkt_len += data_len;
2190                         first_seg->nb_segs++;
2191                 }
2192
2193                 prev_id = rx_id;
2194                 rx_id = next_id;
2195
2196                 /*
2197                  * If this is not the last buffer of the received packet, update
2198                  * the pointer to the first mbuf at the NEXTP entry in the
2199                  * sw_sc_ring and continue to parse the RX ring.
2200                  */
2201                 if (!eop && next_rxe) {
2202                         rxm->next = next_rxe->mbuf;
2203                         next_sc_entry->fbuf = first_seg;
2204                         goto next_desc;
2205                 }
2206
2207                 /* Initialize the first mbuf of the returned packet */
2208                 ixgbe_fill_cluster_head_buf(first_seg, &rxd, rxq, staterr);
2209
2210                 /*
2211                  * Deal with the case, when HW CRC srip is disabled.
2212                  * That can't happen when LRO is enabled, but still could
2213                  * happen for scattered RX mode.
2214                  */
2215                 first_seg->pkt_len -= rxq->crc_len;
2216                 if (unlikely(rxm->data_len <= rxq->crc_len)) {
2217                         struct rte_mbuf *lp;
2218
2219                         for (lp = first_seg; lp->next != rxm; lp = lp->next)
2220                                 ;
2221
2222                         first_seg->nb_segs--;
2223                         lp->data_len -= rxq->crc_len - rxm->data_len;
2224                         lp->next = NULL;
2225                         rte_pktmbuf_free_seg(rxm);
2226                 } else
2227                         rxm->data_len -= rxq->crc_len;
2228
2229                 /* Prefetch data of first segment, if configured to do so. */
2230                 rte_packet_prefetch((char *)first_seg->buf_addr +
2231                         first_seg->data_off);
2232
2233                 /*
2234                  * Store the mbuf address into the next entry of the array
2235                  * of returned packets.
2236                  */
2237                 rx_pkts[nb_rx++] = first_seg;
2238         }
2239
2240         /*
2241          * Record index of the next RX descriptor to probe.
2242          */
2243         rxq->rx_tail = rx_id;
2244
2245         /*
2246          * If the number of free RX descriptors is greater than the RX free
2247          * threshold of the queue, advance the Receive Descriptor Tail (RDT)
2248          * register.
2249          * Update the RDT with the value of the last processed RX descriptor
2250          * minus 1, to guarantee that the RDT register is never equal to the
2251          * RDH register, which creates a "full" ring situtation from the
2252          * hardware point of view...
2253          */
2254         if (!bulk_alloc && nb_hold > rxq->rx_free_thresh) {
2255                 PMD_RX_LOG(DEBUG, "port_id=%u queue_id=%u rx_tail=%u "
2256                            "nb_hold=%u nb_rx=%u",
2257                            rxq->port_id, rxq->queue_id, rx_id, nb_hold, nb_rx);
2258
2259                 rte_wmb();
2260                 IXGBE_PCI_REG_WRITE_RELAXED(rxq->rdt_reg_addr, prev_id);
2261                 nb_hold = 0;
2262         }
2263
2264         rxq->nb_rx_hold = nb_hold;
2265         return nb_rx;
2266 }
2267
2268 uint16_t
2269 ixgbe_recv_pkts_lro_single_alloc(void *rx_queue, struct rte_mbuf **rx_pkts,
2270                                  uint16_t nb_pkts)
2271 {
2272         return ixgbe_recv_pkts_lro(rx_queue, rx_pkts, nb_pkts, false);
2273 }
2274
2275 uint16_t
2276 ixgbe_recv_pkts_lro_bulk_alloc(void *rx_queue, struct rte_mbuf **rx_pkts,
2277                                uint16_t nb_pkts)
2278 {
2279         return ixgbe_recv_pkts_lro(rx_queue, rx_pkts, nb_pkts, true);
2280 }
2281
2282 /*********************************************************************
2283  *
2284  *  Queue management functions
2285  *
2286  **********************************************************************/
2287
2288 static void __attribute__((cold))
2289 ixgbe_tx_queue_release_mbufs(struct ixgbe_tx_queue *txq)
2290 {
2291         unsigned i;
2292
2293         if (txq->sw_ring != NULL) {
2294                 for (i = 0; i < txq->nb_tx_desc; i++) {
2295                         if (txq->sw_ring[i].mbuf != NULL) {
2296                                 rte_pktmbuf_free_seg(txq->sw_ring[i].mbuf);
2297                                 txq->sw_ring[i].mbuf = NULL;
2298                         }
2299                 }
2300         }
2301 }
2302
2303 static void __attribute__((cold))
2304 ixgbe_tx_free_swring(struct ixgbe_tx_queue *txq)
2305 {
2306         if (txq != NULL &&
2307             txq->sw_ring != NULL)
2308                 rte_free(txq->sw_ring);
2309 }
2310
2311 static void __attribute__((cold))
2312 ixgbe_tx_queue_release(struct ixgbe_tx_queue *txq)
2313 {
2314         if (txq != NULL && txq->ops != NULL) {
2315                 txq->ops->release_mbufs(txq);
2316                 txq->ops->free_swring(txq);
2317                 rte_free(txq);
2318         }
2319 }
2320
2321 void __attribute__((cold))
2322 ixgbe_dev_tx_queue_release(void *txq)
2323 {
2324         ixgbe_tx_queue_release(txq);
2325 }
2326
2327 /* (Re)set dynamic ixgbe_tx_queue fields to defaults */
2328 static void __attribute__((cold))
2329 ixgbe_reset_tx_queue(struct ixgbe_tx_queue *txq)
2330 {
2331         static const union ixgbe_adv_tx_desc zeroed_desc = {{0}};
2332         struct ixgbe_tx_entry *txe = txq->sw_ring;
2333         uint16_t prev, i;
2334
2335         /* Zero out HW ring memory */
2336         for (i = 0; i < txq->nb_tx_desc; i++) {
2337                 txq->tx_ring[i] = zeroed_desc;
2338         }
2339
2340         /* Initialize SW ring entries */
2341         prev = (uint16_t) (txq->nb_tx_desc - 1);
2342         for (i = 0; i < txq->nb_tx_desc; i++) {
2343                 volatile union ixgbe_adv_tx_desc *txd = &txq->tx_ring[i];
2344
2345                 txd->wb.status = rte_cpu_to_le_32(IXGBE_TXD_STAT_DD);
2346                 txe[i].mbuf = NULL;
2347                 txe[i].last_id = i;
2348                 txe[prev].next_id = i;
2349                 prev = i;
2350         }
2351
2352         txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);
2353         txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
2354
2355         txq->tx_tail = 0;
2356         txq->nb_tx_used = 0;
2357         /*
2358          * Always allow 1 descriptor to be un-allocated to avoid
2359          * a H/W race condition
2360          */
2361         txq->last_desc_cleaned = (uint16_t)(txq->nb_tx_desc - 1);
2362         txq->nb_tx_free = (uint16_t)(txq->nb_tx_desc - 1);
2363         txq->ctx_curr = 0;
2364         memset((void *)&txq->ctx_cache, 0,
2365                 IXGBE_CTX_NUM * sizeof(struct ixgbe_advctx_info));
2366 }
2367
2368 static const struct ixgbe_txq_ops def_txq_ops = {
2369         .release_mbufs = ixgbe_tx_queue_release_mbufs,
2370         .free_swring = ixgbe_tx_free_swring,
2371         .reset = ixgbe_reset_tx_queue,
2372 };
2373
2374 /* Takes an ethdev and a queue and sets up the tx function to be used based on
2375  * the queue parameters. Used in tx_queue_setup by primary process and then
2376  * in dev_init by secondary process when attaching to an existing ethdev.
2377  */
2378 void __attribute__((cold))
2379 ixgbe_set_tx_function(struct rte_eth_dev *dev, struct ixgbe_tx_queue *txq)
2380 {
2381         /* Use a simple Tx queue (no offloads, no multi segs) if possible */
2382         if ((txq->offloads == 0) &&
2383 #ifdef RTE_LIBRTE_SECURITY
2384                         !(txq->using_ipsec) &&
2385 #endif
2386                         (txq->tx_rs_thresh >= RTE_PMD_IXGBE_TX_MAX_BURST)) {
2387                 PMD_INIT_LOG(DEBUG, "Using simple tx code path");
2388                 dev->tx_pkt_prepare = NULL;
2389 #ifdef RTE_IXGBE_INC_VECTOR
2390                 if (txq->tx_rs_thresh <= RTE_IXGBE_TX_MAX_FREE_BUF_SZ &&
2391                                 (rte_eal_process_type() != RTE_PROC_PRIMARY ||
2392                                         ixgbe_txq_vec_setup(txq) == 0)) {
2393                         PMD_INIT_LOG(DEBUG, "Vector tx enabled.");
2394                         dev->tx_pkt_burst = ixgbe_xmit_pkts_vec;
2395                 } else
2396 #endif
2397                 dev->tx_pkt_burst = ixgbe_xmit_pkts_simple;
2398         } else {
2399                 PMD_INIT_LOG(DEBUG, "Using full-featured tx code path");
2400                 PMD_INIT_LOG(DEBUG,
2401                                 " - offloads = 0x%" PRIx64,
2402                                 txq->offloads);
2403                 PMD_INIT_LOG(DEBUG,
2404                                 " - tx_rs_thresh = %lu " "[RTE_PMD_IXGBE_TX_MAX_BURST=%lu]",
2405                                 (unsigned long)txq->tx_rs_thresh,
2406                                 (unsigned long)RTE_PMD_IXGBE_TX_MAX_BURST);
2407                 dev->tx_pkt_burst = ixgbe_xmit_pkts;
2408                 dev->tx_pkt_prepare = ixgbe_prep_pkts;
2409         }
2410 }
2411
2412 uint64_t
2413 ixgbe_get_tx_queue_offloads(struct rte_eth_dev *dev)
2414 {
2415         RTE_SET_USED(dev);
2416
2417         return 0;
2418 }
2419
2420 uint64_t
2421 ixgbe_get_tx_port_offloads(struct rte_eth_dev *dev)
2422 {
2423         uint64_t tx_offload_capa;
2424         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2425
2426         tx_offload_capa =
2427                 DEV_TX_OFFLOAD_VLAN_INSERT |
2428                 DEV_TX_OFFLOAD_IPV4_CKSUM  |
2429                 DEV_TX_OFFLOAD_UDP_CKSUM   |
2430                 DEV_TX_OFFLOAD_TCP_CKSUM   |
2431                 DEV_TX_OFFLOAD_SCTP_CKSUM  |
2432                 DEV_TX_OFFLOAD_TCP_TSO     |
2433                 DEV_TX_OFFLOAD_MULTI_SEGS;
2434
2435         if (hw->mac.type == ixgbe_mac_82599EB ||
2436             hw->mac.type == ixgbe_mac_X540)
2437                 tx_offload_capa |= DEV_TX_OFFLOAD_MACSEC_INSERT;
2438
2439         if (hw->mac.type == ixgbe_mac_X550 ||
2440             hw->mac.type == ixgbe_mac_X550EM_x ||
2441             hw->mac.type == ixgbe_mac_X550EM_a)
2442                 tx_offload_capa |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM;
2443
2444 #ifdef RTE_LIBRTE_SECURITY
2445         if (dev->security_ctx)
2446                 tx_offload_capa |= DEV_TX_OFFLOAD_SECURITY;
2447 #endif
2448         return tx_offload_capa;
2449 }
2450
2451 int __attribute__((cold))
2452 ixgbe_dev_tx_queue_setup(struct rte_eth_dev *dev,
2453                          uint16_t queue_idx,
2454                          uint16_t nb_desc,
2455                          unsigned int socket_id,
2456                          const struct rte_eth_txconf *tx_conf)
2457 {
2458         const struct rte_memzone *tz;
2459         struct ixgbe_tx_queue *txq;
2460         struct ixgbe_hw     *hw;
2461         uint16_t tx_rs_thresh, tx_free_thresh;
2462         uint64_t offloads;
2463
2464         PMD_INIT_FUNC_TRACE();
2465         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2466
2467         offloads = tx_conf->offloads | dev->data->dev_conf.txmode.offloads;
2468
2469         /*
2470          * Validate number of transmit descriptors.
2471          * It must not exceed hardware maximum, and must be multiple
2472          * of IXGBE_ALIGN.
2473          */
2474         if (nb_desc % IXGBE_TXD_ALIGN != 0 ||
2475                         (nb_desc > IXGBE_MAX_RING_DESC) ||
2476                         (nb_desc < IXGBE_MIN_RING_DESC)) {
2477                 return -EINVAL;
2478         }
2479
2480         /*
2481          * The following two parameters control the setting of the RS bit on
2482          * transmit descriptors.
2483          * TX descriptors will have their RS bit set after txq->tx_rs_thresh
2484          * descriptors have been used.
2485          * The TX descriptor ring will be cleaned after txq->tx_free_thresh
2486          * descriptors are used or if the number of descriptors required
2487          * to transmit a packet is greater than the number of free TX
2488          * descriptors.
2489          * The following constraints must be satisfied:
2490          *  tx_rs_thresh must be greater than 0.
2491          *  tx_rs_thresh must be less than the size of the ring minus 2.
2492          *  tx_rs_thresh must be less than or equal to tx_free_thresh.
2493          *  tx_rs_thresh must be a divisor of the ring size.
2494          *  tx_free_thresh must be greater than 0.
2495          *  tx_free_thresh must be less than the size of the ring minus 3.
2496          * One descriptor in the TX ring is used as a sentinel to avoid a
2497          * H/W race condition, hence the maximum threshold constraints.
2498          * When set to zero use default values.
2499          */
2500         tx_rs_thresh = (uint16_t)((tx_conf->tx_rs_thresh) ?
2501                         tx_conf->tx_rs_thresh : DEFAULT_TX_RS_THRESH);
2502         tx_free_thresh = (uint16_t)((tx_conf->tx_free_thresh) ?
2503                         tx_conf->tx_free_thresh : DEFAULT_TX_FREE_THRESH);
2504         if (tx_rs_thresh >= (nb_desc - 2)) {
2505                 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less than the number "
2506                         "of TX descriptors minus 2. (tx_rs_thresh=%u "
2507                         "port=%d queue=%d)", (unsigned int)tx_rs_thresh,
2508                         (int)dev->data->port_id, (int)queue_idx);
2509                 return -(EINVAL);
2510         }
2511         if (tx_rs_thresh > DEFAULT_TX_RS_THRESH) {
2512                 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less or equal than %u. "
2513                         "(tx_rs_thresh=%u port=%d queue=%d)",
2514                         DEFAULT_TX_RS_THRESH, (unsigned int)tx_rs_thresh,
2515                         (int)dev->data->port_id, (int)queue_idx);
2516                 return -(EINVAL);
2517         }
2518         if (tx_free_thresh >= (nb_desc - 3)) {
2519                 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less than the "
2520                              "tx_free_thresh must be less than the number of "
2521                              "TX descriptors minus 3. (tx_free_thresh=%u "
2522                              "port=%d queue=%d)",
2523                              (unsigned int)tx_free_thresh,
2524                              (int)dev->data->port_id, (int)queue_idx);
2525                 return -(EINVAL);
2526         }
2527         if (tx_rs_thresh > tx_free_thresh) {
2528                 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less than or equal to "
2529                              "tx_free_thresh. (tx_free_thresh=%u "
2530                              "tx_rs_thresh=%u port=%d queue=%d)",
2531                              (unsigned int)tx_free_thresh,
2532                              (unsigned int)tx_rs_thresh,
2533                              (int)dev->data->port_id,
2534                              (int)queue_idx);
2535                 return -(EINVAL);
2536         }
2537         if ((nb_desc % tx_rs_thresh) != 0) {
2538                 PMD_INIT_LOG(ERR, "tx_rs_thresh must be a divisor of the "
2539                              "number of TX descriptors. (tx_rs_thresh=%u "
2540                              "port=%d queue=%d)", (unsigned int)tx_rs_thresh,
2541                              (int)dev->data->port_id, (int)queue_idx);
2542                 return -(EINVAL);
2543         }
2544
2545         /*
2546          * If rs_bit_thresh is greater than 1, then TX WTHRESH should be
2547          * set to 0. If WTHRESH is greater than zero, the RS bit is ignored
2548          * by the NIC and all descriptors are written back after the NIC
2549          * accumulates WTHRESH descriptors.
2550          */
2551         if ((tx_rs_thresh > 1) && (tx_conf->tx_thresh.wthresh != 0)) {
2552                 PMD_INIT_LOG(ERR, "TX WTHRESH must be set to 0 if "
2553                              "tx_rs_thresh is greater than 1. (tx_rs_thresh=%u "
2554                              "port=%d queue=%d)", (unsigned int)tx_rs_thresh,
2555                              (int)dev->data->port_id, (int)queue_idx);
2556                 return -(EINVAL);
2557         }
2558
2559         /* Free memory prior to re-allocation if needed... */
2560         if (dev->data->tx_queues[queue_idx] != NULL) {
2561                 ixgbe_tx_queue_release(dev->data->tx_queues[queue_idx]);
2562                 dev->data->tx_queues[queue_idx] = NULL;
2563         }
2564
2565         /* First allocate the tx queue data structure */
2566         txq = rte_zmalloc_socket("ethdev TX queue", sizeof(struct ixgbe_tx_queue),
2567                                  RTE_CACHE_LINE_SIZE, socket_id);
2568         if (txq == NULL)
2569                 return -ENOMEM;
2570
2571         /*
2572          * Allocate TX ring hardware descriptors. A memzone large enough to
2573          * handle the maximum ring size is allocated in order to allow for
2574          * resizing in later calls to the queue setup function.
2575          */
2576         tz = rte_eth_dma_zone_reserve(dev, "tx_ring", queue_idx,
2577                         sizeof(union ixgbe_adv_tx_desc) * IXGBE_MAX_RING_DESC,
2578                         IXGBE_ALIGN, socket_id);
2579         if (tz == NULL) {
2580                 ixgbe_tx_queue_release(txq);
2581                 return -ENOMEM;
2582         }
2583
2584         txq->nb_tx_desc = nb_desc;
2585         txq->tx_rs_thresh = tx_rs_thresh;
2586         txq->tx_free_thresh = tx_free_thresh;
2587         txq->pthresh = tx_conf->tx_thresh.pthresh;
2588         txq->hthresh = tx_conf->tx_thresh.hthresh;
2589         txq->wthresh = tx_conf->tx_thresh.wthresh;
2590         txq->queue_id = queue_idx;
2591         txq->reg_idx = (uint16_t)((RTE_ETH_DEV_SRIOV(dev).active == 0) ?
2592                 queue_idx : RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx + queue_idx);
2593         txq->port_id = dev->data->port_id;
2594         txq->offloads = offloads;
2595         txq->ops = &def_txq_ops;
2596         txq->tx_deferred_start = tx_conf->tx_deferred_start;
2597 #ifdef RTE_LIBRTE_SECURITY
2598         txq->using_ipsec = !!(dev->data->dev_conf.txmode.offloads &
2599                         DEV_TX_OFFLOAD_SECURITY);
2600 #endif
2601
2602         /*
2603          * Modification to set VFTDT for virtual function if vf is detected
2604          */
2605         if (hw->mac.type == ixgbe_mac_82599_vf ||
2606             hw->mac.type == ixgbe_mac_X540_vf ||
2607             hw->mac.type == ixgbe_mac_X550_vf ||
2608             hw->mac.type == ixgbe_mac_X550EM_x_vf ||
2609             hw->mac.type == ixgbe_mac_X550EM_a_vf)
2610                 txq->tdt_reg_addr = IXGBE_PCI_REG_ADDR(hw, IXGBE_VFTDT(queue_idx));
2611         else
2612                 txq->tdt_reg_addr = IXGBE_PCI_REG_ADDR(hw, IXGBE_TDT(txq->reg_idx));
2613
2614         txq->tx_ring_phys_addr = tz->iova;
2615         txq->tx_ring = (union ixgbe_adv_tx_desc *) tz->addr;
2616
2617         /* Allocate software ring */
2618         txq->sw_ring = rte_zmalloc_socket("txq->sw_ring",
2619                                 sizeof(struct ixgbe_tx_entry) * nb_desc,
2620                                 RTE_CACHE_LINE_SIZE, socket_id);
2621         if (txq->sw_ring == NULL) {
2622                 ixgbe_tx_queue_release(txq);
2623                 return -ENOMEM;
2624         }
2625         PMD_INIT_LOG(DEBUG, "sw_ring=%p hw_ring=%p dma_addr=0x%"PRIx64,
2626                      txq->sw_ring, txq->tx_ring, txq->tx_ring_phys_addr);
2627
2628         /* set up vector or scalar TX function as appropriate */
2629         ixgbe_set_tx_function(dev, txq);
2630
2631         txq->ops->reset(txq);
2632
2633         dev->data->tx_queues[queue_idx] = txq;
2634
2635
2636         return 0;
2637 }
2638
2639 /**
2640  * ixgbe_free_sc_cluster - free the not-yet-completed scattered cluster
2641  *
2642  * The "next" pointer of the last segment of (not-yet-completed) RSC clusters
2643  * in the sw_rsc_ring is not set to NULL but rather points to the next
2644  * mbuf of this RSC aggregation (that has not been completed yet and still
2645  * resides on the HW ring). So, instead of calling for rte_pktmbuf_free() we
2646  * will just free first "nb_segs" segments of the cluster explicitly by calling
2647  * an rte_pktmbuf_free_seg().
2648  *
2649  * @m scattered cluster head
2650  */
2651 static void __attribute__((cold))
2652 ixgbe_free_sc_cluster(struct rte_mbuf *m)
2653 {
2654         uint16_t i, nb_segs = m->nb_segs;
2655         struct rte_mbuf *next_seg;
2656
2657         for (i = 0; i < nb_segs; i++) {
2658                 next_seg = m->next;
2659                 rte_pktmbuf_free_seg(m);
2660                 m = next_seg;
2661         }
2662 }
2663
2664 static void __attribute__((cold))
2665 ixgbe_rx_queue_release_mbufs(struct ixgbe_rx_queue *rxq)
2666 {
2667         unsigned i;
2668
2669 #ifdef RTE_IXGBE_INC_VECTOR
2670         /* SSE Vector driver has a different way of releasing mbufs. */
2671         if (rxq->rx_using_sse) {
2672                 ixgbe_rx_queue_release_mbufs_vec(rxq);
2673                 return;
2674         }
2675 #endif
2676
2677         if (rxq->sw_ring != NULL) {
2678                 for (i = 0; i < rxq->nb_rx_desc; i++) {
2679                         if (rxq->sw_ring[i].mbuf != NULL) {
2680                                 rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
2681                                 rxq->sw_ring[i].mbuf = NULL;
2682                         }
2683                 }
2684                 if (rxq->rx_nb_avail) {
2685                         for (i = 0; i < rxq->rx_nb_avail; ++i) {
2686                                 struct rte_mbuf *mb;
2687
2688                                 mb = rxq->rx_stage[rxq->rx_next_avail + i];
2689                                 rte_pktmbuf_free_seg(mb);
2690                         }
2691                         rxq->rx_nb_avail = 0;
2692                 }
2693         }
2694
2695         if (rxq->sw_sc_ring)
2696                 for (i = 0; i < rxq->nb_rx_desc; i++)
2697                         if (rxq->sw_sc_ring[i].fbuf) {
2698                                 ixgbe_free_sc_cluster(rxq->sw_sc_ring[i].fbuf);
2699                                 rxq->sw_sc_ring[i].fbuf = NULL;
2700                         }
2701 }
2702
2703 static void __attribute__((cold))
2704 ixgbe_rx_queue_release(struct ixgbe_rx_queue *rxq)
2705 {
2706         if (rxq != NULL) {
2707                 ixgbe_rx_queue_release_mbufs(rxq);
2708                 rte_free(rxq->sw_ring);
2709                 rte_free(rxq->sw_sc_ring);
2710                 rte_free(rxq);
2711         }
2712 }
2713
2714 void __attribute__((cold))
2715 ixgbe_dev_rx_queue_release(void *rxq)
2716 {
2717         ixgbe_rx_queue_release(rxq);
2718 }
2719
2720 /*
2721  * Check if Rx Burst Bulk Alloc function can be used.
2722  * Return
2723  *        0: the preconditions are satisfied and the bulk allocation function
2724  *           can be used.
2725  *  -EINVAL: the preconditions are NOT satisfied and the default Rx burst
2726  *           function must be used.
2727  */
2728 static inline int __attribute__((cold))
2729 check_rx_burst_bulk_alloc_preconditions(struct ixgbe_rx_queue *rxq)
2730 {
2731         int ret = 0;
2732
2733         /*
2734          * Make sure the following pre-conditions are satisfied:
2735          *   rxq->rx_free_thresh >= RTE_PMD_IXGBE_RX_MAX_BURST
2736          *   rxq->rx_free_thresh < rxq->nb_rx_desc
2737          *   (rxq->nb_rx_desc % rxq->rx_free_thresh) == 0
2738          * Scattered packets are not supported.  This should be checked
2739          * outside of this function.
2740          */
2741         if (!(rxq->rx_free_thresh >= RTE_PMD_IXGBE_RX_MAX_BURST)) {
2742                 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
2743                              "rxq->rx_free_thresh=%d, "
2744                              "RTE_PMD_IXGBE_RX_MAX_BURST=%d",
2745                              rxq->rx_free_thresh, RTE_PMD_IXGBE_RX_MAX_BURST);
2746                 ret = -EINVAL;
2747         } else if (!(rxq->rx_free_thresh < rxq->nb_rx_desc)) {
2748                 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
2749                              "rxq->rx_free_thresh=%d, "
2750                              "rxq->nb_rx_desc=%d",
2751                              rxq->rx_free_thresh, rxq->nb_rx_desc);
2752                 ret = -EINVAL;
2753         } else if (!((rxq->nb_rx_desc % rxq->rx_free_thresh) == 0)) {
2754                 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
2755                              "rxq->nb_rx_desc=%d, "
2756                              "rxq->rx_free_thresh=%d",
2757                              rxq->nb_rx_desc, rxq->rx_free_thresh);
2758                 ret = -EINVAL;
2759         }
2760
2761         return ret;
2762 }
2763
2764 /* Reset dynamic ixgbe_rx_queue fields back to defaults */
2765 static void __attribute__((cold))
2766 ixgbe_reset_rx_queue(struct ixgbe_adapter *adapter, struct ixgbe_rx_queue *rxq)
2767 {
2768         static const union ixgbe_adv_rx_desc zeroed_desc = {{0}};
2769         unsigned i;
2770         uint16_t len = rxq->nb_rx_desc;
2771
2772         /*
2773          * By default, the Rx queue setup function allocates enough memory for
2774          * IXGBE_MAX_RING_DESC.  The Rx Burst bulk allocation function requires
2775          * extra memory at the end of the descriptor ring to be zero'd out.
2776          */
2777         if (adapter->rx_bulk_alloc_allowed)
2778                 /* zero out extra memory */
2779                 len += RTE_PMD_IXGBE_RX_MAX_BURST;
2780
2781         /*
2782          * Zero out HW ring memory. Zero out extra memory at the end of
2783          * the H/W ring so look-ahead logic in Rx Burst bulk alloc function
2784          * reads extra memory as zeros.
2785          */
2786         for (i = 0; i < len; i++) {
2787                 rxq->rx_ring[i] = zeroed_desc;
2788         }
2789
2790         /*
2791          * initialize extra software ring entries. Space for these extra
2792          * entries is always allocated
2793          */
2794         memset(&rxq->fake_mbuf, 0x0, sizeof(rxq->fake_mbuf));
2795         for (i = rxq->nb_rx_desc; i < len; ++i) {
2796                 rxq->sw_ring[i].mbuf = &rxq->fake_mbuf;
2797         }
2798
2799         rxq->rx_nb_avail = 0;
2800         rxq->rx_next_avail = 0;
2801         rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1);
2802         rxq->rx_tail = 0;
2803         rxq->nb_rx_hold = 0;
2804         rxq->pkt_first_seg = NULL;
2805         rxq->pkt_last_seg = NULL;
2806
2807 #ifdef RTE_IXGBE_INC_VECTOR
2808         rxq->rxrearm_start = 0;
2809         rxq->rxrearm_nb = 0;
2810 #endif
2811 }
2812
2813 static int
2814 ixgbe_is_vf(struct rte_eth_dev *dev)
2815 {
2816         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2817
2818         switch (hw->mac.type) {
2819         case ixgbe_mac_82599_vf:
2820         case ixgbe_mac_X540_vf:
2821         case ixgbe_mac_X550_vf:
2822         case ixgbe_mac_X550EM_x_vf:
2823         case ixgbe_mac_X550EM_a_vf:
2824                 return 1;
2825         default:
2826                 return 0;
2827         }
2828 }
2829
2830 uint64_t
2831 ixgbe_get_rx_queue_offloads(struct rte_eth_dev *dev)
2832 {
2833         uint64_t offloads = 0;
2834         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2835
2836         if (hw->mac.type != ixgbe_mac_82598EB)
2837                 offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
2838
2839         return offloads;
2840 }
2841
2842 uint64_t
2843 ixgbe_get_rx_port_offloads(struct rte_eth_dev *dev)
2844 {
2845         uint64_t offloads;
2846         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2847
2848         offloads = DEV_RX_OFFLOAD_IPV4_CKSUM  |
2849                    DEV_RX_OFFLOAD_UDP_CKSUM   |
2850                    DEV_RX_OFFLOAD_TCP_CKSUM   |
2851                    DEV_RX_OFFLOAD_CRC_STRIP   |
2852                    DEV_RX_OFFLOAD_KEEP_CRC    |
2853                    DEV_RX_OFFLOAD_JUMBO_FRAME |
2854                    DEV_RX_OFFLOAD_SCATTER;
2855
2856         if (hw->mac.type == ixgbe_mac_82598EB)
2857                 offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
2858
2859         if (ixgbe_is_vf(dev) == 0)
2860                 offloads |= (DEV_RX_OFFLOAD_VLAN_FILTER |
2861                              DEV_RX_OFFLOAD_VLAN_EXTEND);
2862
2863         /*
2864          * RSC is only supported by 82599 and x540 PF devices in a non-SR-IOV
2865          * mode.
2866          */
2867         if ((hw->mac.type == ixgbe_mac_82599EB ||
2868              hw->mac.type == ixgbe_mac_X540) &&
2869             !RTE_ETH_DEV_SRIOV(dev).active)
2870                 offloads |= DEV_RX_OFFLOAD_TCP_LRO;
2871
2872         if (hw->mac.type == ixgbe_mac_82599EB ||
2873             hw->mac.type == ixgbe_mac_X540)
2874                 offloads |= DEV_RX_OFFLOAD_MACSEC_STRIP;
2875
2876         if (hw->mac.type == ixgbe_mac_X550 ||
2877             hw->mac.type == ixgbe_mac_X550EM_x ||
2878             hw->mac.type == ixgbe_mac_X550EM_a)
2879                 offloads |= DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM;
2880
2881 #ifdef RTE_LIBRTE_SECURITY
2882         if (dev->security_ctx)
2883                 offloads |= DEV_RX_OFFLOAD_SECURITY;
2884 #endif
2885
2886         return offloads;
2887 }
2888
2889 int __attribute__((cold))
2890 ixgbe_dev_rx_queue_setup(struct rte_eth_dev *dev,
2891                          uint16_t queue_idx,
2892                          uint16_t nb_desc,
2893                          unsigned int socket_id,
2894                          const struct rte_eth_rxconf *rx_conf,
2895                          struct rte_mempool *mp)
2896 {
2897         const struct rte_memzone *rz;
2898         struct ixgbe_rx_queue *rxq;
2899         struct ixgbe_hw     *hw;
2900         uint16_t len;
2901         struct ixgbe_adapter *adapter =
2902                 (struct ixgbe_adapter *)dev->data->dev_private;
2903         uint64_t offloads;
2904
2905         PMD_INIT_FUNC_TRACE();
2906         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2907
2908         offloads = rx_conf->offloads | dev->data->dev_conf.rxmode.offloads;
2909
2910         /*
2911          * Validate number of receive descriptors.
2912          * It must not exceed hardware maximum, and must be multiple
2913          * of IXGBE_ALIGN.
2914          */
2915         if (nb_desc % IXGBE_RXD_ALIGN != 0 ||
2916                         (nb_desc > IXGBE_MAX_RING_DESC) ||
2917                         (nb_desc < IXGBE_MIN_RING_DESC)) {
2918                 return -EINVAL;
2919         }
2920
2921         /* Free memory prior to re-allocation if needed... */
2922         if (dev->data->rx_queues[queue_idx] != NULL) {
2923                 ixgbe_rx_queue_release(dev->data->rx_queues[queue_idx]);
2924                 dev->data->rx_queues[queue_idx] = NULL;
2925         }
2926
2927         /* First allocate the rx queue data structure */
2928         rxq = rte_zmalloc_socket("ethdev RX queue", sizeof(struct ixgbe_rx_queue),
2929                                  RTE_CACHE_LINE_SIZE, socket_id);
2930         if (rxq == NULL)
2931                 return -ENOMEM;
2932         rxq->mb_pool = mp;
2933         rxq->nb_rx_desc = nb_desc;
2934         rxq->rx_free_thresh = rx_conf->rx_free_thresh;
2935         rxq->queue_id = queue_idx;
2936         rxq->reg_idx = (uint16_t)((RTE_ETH_DEV_SRIOV(dev).active == 0) ?
2937                 queue_idx : RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx + queue_idx);
2938         rxq->port_id = dev->data->port_id;
2939         if (rte_eth_dev_must_keep_crc(dev->data->dev_conf.rxmode.offloads))
2940                 rxq->crc_len = ETHER_CRC_LEN;
2941         else
2942                 rxq->crc_len = 0;
2943         rxq->drop_en = rx_conf->rx_drop_en;
2944         rxq->rx_deferred_start = rx_conf->rx_deferred_start;
2945         rxq->offloads = offloads;
2946
2947         /*
2948          * The packet type in RX descriptor is different for different NICs.
2949          * Some bits are used for x550 but reserved for other NICS.
2950          * So set different masks for different NICs.
2951          */
2952         if (hw->mac.type == ixgbe_mac_X550 ||
2953             hw->mac.type == ixgbe_mac_X550EM_x ||
2954             hw->mac.type == ixgbe_mac_X550EM_a ||
2955             hw->mac.type == ixgbe_mac_X550_vf ||
2956             hw->mac.type == ixgbe_mac_X550EM_x_vf ||
2957             hw->mac.type == ixgbe_mac_X550EM_a_vf)
2958                 rxq->pkt_type_mask = IXGBE_PACKET_TYPE_MASK_X550;
2959         else
2960                 rxq->pkt_type_mask = IXGBE_PACKET_TYPE_MASK_82599;
2961
2962         /*
2963          * Allocate RX ring hardware descriptors. A memzone large enough to
2964          * handle the maximum ring size is allocated in order to allow for
2965          * resizing in later calls to the queue setup function.
2966          */
2967         rz = rte_eth_dma_zone_reserve(dev, "rx_ring", queue_idx,
2968                                       RX_RING_SZ, IXGBE_ALIGN, socket_id);
2969         if (rz == NULL) {
2970                 ixgbe_rx_queue_release(rxq);
2971                 return -ENOMEM;
2972         }
2973
2974         /*
2975          * Zero init all the descriptors in the ring.
2976          */
2977         memset(rz->addr, 0, RX_RING_SZ);
2978
2979         /*
2980          * Modified to setup VFRDT for Virtual Function
2981          */
2982         if (hw->mac.type == ixgbe_mac_82599_vf ||
2983             hw->mac.type == ixgbe_mac_X540_vf ||
2984             hw->mac.type == ixgbe_mac_X550_vf ||
2985             hw->mac.type == ixgbe_mac_X550EM_x_vf ||
2986             hw->mac.type == ixgbe_mac_X550EM_a_vf) {
2987                 rxq->rdt_reg_addr =
2988                         IXGBE_PCI_REG_ADDR(hw, IXGBE_VFRDT(queue_idx));
2989                 rxq->rdh_reg_addr =
2990                         IXGBE_PCI_REG_ADDR(hw, IXGBE_VFRDH(queue_idx));
2991         } else {
2992                 rxq->rdt_reg_addr =
2993                         IXGBE_PCI_REG_ADDR(hw, IXGBE_RDT(rxq->reg_idx));
2994                 rxq->rdh_reg_addr =
2995                         IXGBE_PCI_REG_ADDR(hw, IXGBE_RDH(rxq->reg_idx));
2996         }
2997
2998         rxq->rx_ring_phys_addr = rz->iova;
2999         rxq->rx_ring = (union ixgbe_adv_rx_desc *) rz->addr;
3000
3001         /*
3002          * Certain constraints must be met in order to use the bulk buffer
3003          * allocation Rx burst function. If any of Rx queues doesn't meet them
3004          * the feature should be disabled for the whole port.
3005          */
3006         if (check_rx_burst_bulk_alloc_preconditions(rxq)) {
3007                 PMD_INIT_LOG(DEBUG, "queue[%d] doesn't meet Rx Bulk Alloc "
3008                                     "preconditions - canceling the feature for "
3009                                     "the whole port[%d]",
3010                              rxq->queue_id, rxq->port_id);
3011                 adapter->rx_bulk_alloc_allowed = false;
3012         }
3013
3014         /*
3015          * Allocate software ring. Allow for space at the end of the
3016          * S/W ring to make sure look-ahead logic in bulk alloc Rx burst
3017          * function does not access an invalid memory region.
3018          */
3019         len = nb_desc;
3020         if (adapter->rx_bulk_alloc_allowed)
3021                 len += RTE_PMD_IXGBE_RX_MAX_BURST;
3022
3023         rxq->sw_ring = rte_zmalloc_socket("rxq->sw_ring",
3024                                           sizeof(struct ixgbe_rx_entry) * len,
3025                                           RTE_CACHE_LINE_SIZE, socket_id);
3026         if (!rxq->sw_ring) {
3027                 ixgbe_rx_queue_release(rxq);
3028                 return -ENOMEM;
3029         }
3030
3031         /*
3032          * Always allocate even if it's not going to be needed in order to
3033          * simplify the code.
3034          *
3035          * This ring is used in LRO and Scattered Rx cases and Scattered Rx may
3036          * be requested in ixgbe_dev_rx_init(), which is called later from
3037          * dev_start() flow.
3038          */
3039         rxq->sw_sc_ring =
3040                 rte_zmalloc_socket("rxq->sw_sc_ring",
3041                                    sizeof(struct ixgbe_scattered_rx_entry) * len,
3042                                    RTE_CACHE_LINE_SIZE, socket_id);
3043         if (!rxq->sw_sc_ring) {
3044                 ixgbe_rx_queue_release(rxq);
3045                 return -ENOMEM;
3046         }
3047
3048         PMD_INIT_LOG(DEBUG, "sw_ring=%p sw_sc_ring=%p hw_ring=%p "
3049                             "dma_addr=0x%"PRIx64,
3050                      rxq->sw_ring, rxq->sw_sc_ring, rxq->rx_ring,
3051                      rxq->rx_ring_phys_addr);
3052
3053         if (!rte_is_power_of_2(nb_desc)) {
3054                 PMD_INIT_LOG(DEBUG, "queue[%d] doesn't meet Vector Rx "
3055                                     "preconditions - canceling the feature for "
3056                                     "the whole port[%d]",
3057                              rxq->queue_id, rxq->port_id);
3058                 adapter->rx_vec_allowed = false;
3059         } else
3060                 ixgbe_rxq_vec_setup(rxq);
3061
3062         dev->data->rx_queues[queue_idx] = rxq;
3063
3064         ixgbe_reset_rx_queue(adapter, rxq);
3065
3066         return 0;
3067 }
3068
3069 uint32_t
3070 ixgbe_dev_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
3071 {
3072 #define IXGBE_RXQ_SCAN_INTERVAL 4
3073         volatile union ixgbe_adv_rx_desc *rxdp;
3074         struct ixgbe_rx_queue *rxq;
3075         uint32_t desc = 0;
3076
3077         rxq = dev->data->rx_queues[rx_queue_id];
3078         rxdp = &(rxq->rx_ring[rxq->rx_tail]);
3079
3080         while ((desc < rxq->nb_rx_desc) &&
3081                 (rxdp->wb.upper.status_error &
3082                         rte_cpu_to_le_32(IXGBE_RXDADV_STAT_DD))) {
3083                 desc += IXGBE_RXQ_SCAN_INTERVAL;
3084                 rxdp += IXGBE_RXQ_SCAN_INTERVAL;
3085                 if (rxq->rx_tail + desc >= rxq->nb_rx_desc)
3086                         rxdp = &(rxq->rx_ring[rxq->rx_tail +
3087                                 desc - rxq->nb_rx_desc]);
3088         }
3089
3090         return desc;
3091 }
3092
3093 int
3094 ixgbe_dev_rx_descriptor_done(void *rx_queue, uint16_t offset)
3095 {
3096         volatile union ixgbe_adv_rx_desc *rxdp;
3097         struct ixgbe_rx_queue *rxq = rx_queue;
3098         uint32_t desc;
3099
3100         if (unlikely(offset >= rxq->nb_rx_desc))
3101                 return 0;
3102         desc = rxq->rx_tail + offset;
3103         if (desc >= rxq->nb_rx_desc)
3104                 desc -= rxq->nb_rx_desc;
3105
3106         rxdp = &rxq->rx_ring[desc];
3107         return !!(rxdp->wb.upper.status_error &
3108                         rte_cpu_to_le_32(IXGBE_RXDADV_STAT_DD));
3109 }
3110
3111 int
3112 ixgbe_dev_rx_descriptor_status(void *rx_queue, uint16_t offset)
3113 {
3114         struct ixgbe_rx_queue *rxq = rx_queue;
3115         volatile uint32_t *status;
3116         uint32_t nb_hold, desc;
3117
3118         if (unlikely(offset >= rxq->nb_rx_desc))
3119                 return -EINVAL;
3120
3121 #ifdef RTE_IXGBE_INC_VECTOR
3122         if (rxq->rx_using_sse)
3123                 nb_hold = rxq->rxrearm_nb;
3124         else
3125 #endif
3126                 nb_hold = rxq->nb_rx_hold;
3127         if (offset >= rxq->nb_rx_desc - nb_hold)
3128                 return RTE_ETH_RX_DESC_UNAVAIL;
3129
3130         desc = rxq->rx_tail + offset;
3131         if (desc >= rxq->nb_rx_desc)
3132                 desc -= rxq->nb_rx_desc;
3133
3134         status = &rxq->rx_ring[desc].wb.upper.status_error;
3135         if (*status & rte_cpu_to_le_32(IXGBE_RXDADV_STAT_DD))
3136                 return RTE_ETH_RX_DESC_DONE;
3137
3138         return RTE_ETH_RX_DESC_AVAIL;
3139 }
3140
3141 int
3142 ixgbe_dev_tx_descriptor_status(void *tx_queue, uint16_t offset)
3143 {
3144         struct ixgbe_tx_queue *txq = tx_queue;
3145         volatile uint32_t *status;
3146         uint32_t desc;
3147
3148         if (unlikely(offset >= txq->nb_tx_desc))
3149                 return -EINVAL;
3150
3151         desc = txq->tx_tail + offset;
3152         /* go to next desc that has the RS bit */
3153         desc = ((desc + txq->tx_rs_thresh - 1) / txq->tx_rs_thresh) *
3154                 txq->tx_rs_thresh;
3155         if (desc >= txq->nb_tx_desc) {
3156                 desc -= txq->nb_tx_desc;
3157                 if (desc >= txq->nb_tx_desc)
3158                         desc -= txq->nb_tx_desc;
3159         }
3160
3161         status = &txq->tx_ring[desc].wb.status;
3162         if (*status & rte_cpu_to_le_32(IXGBE_ADVTXD_STAT_DD))
3163                 return RTE_ETH_TX_DESC_DONE;
3164
3165         return RTE_ETH_TX_DESC_FULL;
3166 }
3167
3168 void __attribute__((cold))
3169 ixgbe_dev_clear_queues(struct rte_eth_dev *dev)
3170 {
3171         unsigned i;
3172         struct ixgbe_adapter *adapter =
3173                 (struct ixgbe_adapter *)dev->data->dev_private;
3174
3175         PMD_INIT_FUNC_TRACE();
3176
3177         for (i = 0; i < dev->data->nb_tx_queues; i++) {
3178                 struct ixgbe_tx_queue *txq = dev->data->tx_queues[i];
3179
3180                 if (txq != NULL) {
3181                         txq->ops->release_mbufs(txq);
3182                         txq->ops->reset(txq);
3183                 }
3184         }
3185
3186         for (i = 0; i < dev->data->nb_rx_queues; i++) {
3187                 struct ixgbe_rx_queue *rxq = dev->data->rx_queues[i];
3188
3189                 if (rxq != NULL) {
3190                         ixgbe_rx_queue_release_mbufs(rxq);
3191                         ixgbe_reset_rx_queue(adapter, rxq);
3192                 }
3193         }
3194 }
3195
3196 void
3197 ixgbe_dev_free_queues(struct rte_eth_dev *dev)
3198 {
3199         unsigned i;
3200
3201         PMD_INIT_FUNC_TRACE();
3202
3203         for (i = 0; i < dev->data->nb_rx_queues; i++) {
3204                 ixgbe_dev_rx_queue_release(dev->data->rx_queues[i]);
3205                 dev->data->rx_queues[i] = NULL;
3206         }
3207         dev->data->nb_rx_queues = 0;
3208
3209         for (i = 0; i < dev->data->nb_tx_queues; i++) {
3210                 ixgbe_dev_tx_queue_release(dev->data->tx_queues[i]);
3211                 dev->data->tx_queues[i] = NULL;
3212         }
3213         dev->data->nb_tx_queues = 0;
3214 }
3215
3216 /*********************************************************************
3217  *
3218  *  Device RX/TX init functions
3219  *
3220  **********************************************************************/
3221
3222 /**
3223  * Receive Side Scaling (RSS)
3224  * See section 7.1.2.8 in the following document:
3225  *     "Intel 82599 10 GbE Controller Datasheet" - Revision 2.1 October 2009
3226  *
3227  * Principles:
3228  * The source and destination IP addresses of the IP header and the source
3229  * and destination ports of TCP/UDP headers, if any, of received packets are
3230  * hashed against a configurable random key to compute a 32-bit RSS hash result.
3231  * The seven (7) LSBs of the 32-bit hash result are used as an index into a
3232  * 128-entry redirection table (RETA).  Each entry of the RETA provides a 3-bit
3233  * RSS output index which is used as the RX queue index where to store the
3234  * received packets.
3235  * The following output is supplied in the RX write-back descriptor:
3236  *     - 32-bit result of the Microsoft RSS hash function,
3237  *     - 4-bit RSS type field.
3238  */
3239
3240 /*
3241  * RSS random key supplied in section 7.1.2.8.3 of the Intel 82599 datasheet.
3242  * Used as the default key.
3243  */
3244 static uint8_t rss_intel_key[40] = {
3245         0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2,
3246         0x41, 0x67, 0x25, 0x3D, 0x43, 0xA3, 0x8F, 0xB0,
3247         0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4,
3248         0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C,
3249         0x6A, 0x42, 0xB7, 0x3B, 0xBE, 0xAC, 0x01, 0xFA,
3250 };
3251
3252 static void
3253 ixgbe_rss_disable(struct rte_eth_dev *dev)
3254 {
3255         struct ixgbe_hw *hw;
3256         uint32_t mrqc;
3257         uint32_t mrqc_reg;
3258
3259         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3260         mrqc_reg = ixgbe_mrqc_reg_get(hw->mac.type);
3261         mrqc = IXGBE_READ_REG(hw, mrqc_reg);
3262         mrqc &= ~IXGBE_MRQC_RSSEN;
3263         IXGBE_WRITE_REG(hw, mrqc_reg, mrqc);
3264 }
3265
3266 static void
3267 ixgbe_hw_rss_hash_set(struct ixgbe_hw *hw, struct rte_eth_rss_conf *rss_conf)
3268 {
3269         uint8_t  *hash_key;
3270         uint32_t mrqc;
3271         uint32_t rss_key;
3272         uint64_t rss_hf;
3273         uint16_t i;
3274         uint32_t mrqc_reg;
3275         uint32_t rssrk_reg;
3276
3277         mrqc_reg = ixgbe_mrqc_reg_get(hw->mac.type);
3278         rssrk_reg = ixgbe_rssrk_reg_get(hw->mac.type, 0);
3279
3280         hash_key = rss_conf->rss_key;
3281         if (hash_key != NULL) {
3282                 /* Fill in RSS hash key */
3283                 for (i = 0; i < 10; i++) {
3284                         rss_key  = hash_key[(i * 4)];
3285                         rss_key |= hash_key[(i * 4) + 1] << 8;
3286                         rss_key |= hash_key[(i * 4) + 2] << 16;
3287                         rss_key |= hash_key[(i * 4) + 3] << 24;
3288                         IXGBE_WRITE_REG_ARRAY(hw, rssrk_reg, i, rss_key);
3289                 }
3290         }
3291
3292         /* Set configured hashing protocols in MRQC register */
3293         rss_hf = rss_conf->rss_hf;
3294         mrqc = IXGBE_MRQC_RSSEN; /* Enable RSS */
3295         if (rss_hf & ETH_RSS_IPV4)
3296                 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4;
3297         if (rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
3298                 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_TCP;
3299         if (rss_hf & ETH_RSS_IPV6)
3300                 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6;
3301         if (rss_hf & ETH_RSS_IPV6_EX)
3302                 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_EX;
3303         if (rss_hf & ETH_RSS_NONFRAG_IPV6_TCP)
3304                 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_TCP;
3305         if (rss_hf & ETH_RSS_IPV6_TCP_EX)
3306                 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_EX_TCP;
3307         if (rss_hf & ETH_RSS_NONFRAG_IPV4_UDP)
3308                 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP;
3309         if (rss_hf & ETH_RSS_NONFRAG_IPV6_UDP)
3310                 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP;
3311         if (rss_hf & ETH_RSS_IPV6_UDP_EX)
3312                 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_EX_UDP;
3313         IXGBE_WRITE_REG(hw, mrqc_reg, mrqc);
3314 }
3315
3316 int
3317 ixgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
3318                           struct rte_eth_rss_conf *rss_conf)
3319 {
3320         struct ixgbe_hw *hw;
3321         uint32_t mrqc;
3322         uint64_t rss_hf;
3323         uint32_t mrqc_reg;
3324
3325         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3326
3327         if (!ixgbe_rss_update_sp(hw->mac.type)) {
3328                 PMD_DRV_LOG(ERR, "RSS hash update is not supported on this "
3329                         "NIC.");
3330                 return -ENOTSUP;
3331         }
3332         mrqc_reg = ixgbe_mrqc_reg_get(hw->mac.type);
3333
3334         /*
3335          * Excerpt from section 7.1.2.8 Receive-Side Scaling (RSS):
3336          *     "RSS enabling cannot be done dynamically while it must be
3337          *      preceded by a software reset"
3338          * Before changing anything, first check that the update RSS operation
3339          * does not attempt to disable RSS, if RSS was enabled at
3340          * initialization time, or does not attempt to enable RSS, if RSS was
3341          * disabled at initialization time.
3342          */
3343         rss_hf = rss_conf->rss_hf & IXGBE_RSS_OFFLOAD_ALL;
3344         mrqc = IXGBE_READ_REG(hw, mrqc_reg);
3345         if (!(mrqc & IXGBE_MRQC_RSSEN)) { /* RSS disabled */
3346                 if (rss_hf != 0) /* Enable RSS */
3347                         return -(EINVAL);
3348                 return 0; /* Nothing to do */
3349         }
3350         /* RSS enabled */
3351         if (rss_hf == 0) /* Disable RSS */
3352                 return -(EINVAL);
3353         ixgbe_hw_rss_hash_set(hw, rss_conf);
3354         return 0;
3355 }
3356
3357 int
3358 ixgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
3359                             struct rte_eth_rss_conf *rss_conf)
3360 {
3361         struct ixgbe_hw *hw;
3362         uint8_t *hash_key;
3363         uint32_t mrqc;
3364         uint32_t rss_key;
3365         uint64_t rss_hf;
3366         uint16_t i;
3367         uint32_t mrqc_reg;
3368         uint32_t rssrk_reg;
3369
3370         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3371         mrqc_reg = ixgbe_mrqc_reg_get(hw->mac.type);
3372         rssrk_reg = ixgbe_rssrk_reg_get(hw->mac.type, 0);
3373         hash_key = rss_conf->rss_key;
3374         if (hash_key != NULL) {
3375                 /* Return RSS hash key */
3376                 for (i = 0; i < 10; i++) {
3377                         rss_key = IXGBE_READ_REG_ARRAY(hw, rssrk_reg, i);
3378                         hash_key[(i * 4)] = rss_key & 0x000000FF;
3379                         hash_key[(i * 4) + 1] = (rss_key >> 8) & 0x000000FF;
3380                         hash_key[(i * 4) + 2] = (rss_key >> 16) & 0x000000FF;
3381                         hash_key[(i * 4) + 3] = (rss_key >> 24) & 0x000000FF;
3382                 }
3383         }
3384
3385         /* Get RSS functions configured in MRQC register */
3386         mrqc = IXGBE_READ_REG(hw, mrqc_reg);
3387         if ((mrqc & IXGBE_MRQC_RSSEN) == 0) { /* RSS is disabled */
3388                 rss_conf->rss_hf = 0;
3389                 return 0;
3390         }
3391         rss_hf = 0;
3392         if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV4)
3393                 rss_hf |= ETH_RSS_IPV4;
3394         if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV4_TCP)
3395                 rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP;
3396         if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV6)
3397                 rss_hf |= ETH_RSS_IPV6;
3398         if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV6_EX)
3399                 rss_hf |= ETH_RSS_IPV6_EX;
3400         if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV6_TCP)
3401                 rss_hf |= ETH_RSS_NONFRAG_IPV6_TCP;
3402         if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV6_EX_TCP)
3403                 rss_hf |= ETH_RSS_IPV6_TCP_EX;
3404         if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV4_UDP)
3405                 rss_hf |= ETH_RSS_NONFRAG_IPV4_UDP;
3406         if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV6_UDP)
3407                 rss_hf |= ETH_RSS_NONFRAG_IPV6_UDP;
3408         if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV6_EX_UDP)
3409                 rss_hf |= ETH_RSS_IPV6_UDP_EX;
3410         rss_conf->rss_hf = rss_hf;
3411         return 0;
3412 }
3413
3414 static void
3415 ixgbe_rss_configure(struct rte_eth_dev *dev)
3416 {
3417         struct rte_eth_rss_conf rss_conf;
3418         struct ixgbe_hw *hw;
3419         uint32_t reta;
3420         uint16_t i;
3421         uint16_t j;
3422         uint16_t sp_reta_size;
3423         uint32_t reta_reg;
3424
3425         PMD_INIT_FUNC_TRACE();
3426         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3427
3428         sp_reta_size = ixgbe_reta_size_get(hw->mac.type);
3429
3430         /*
3431          * Fill in redirection table
3432          * The byte-swap is needed because NIC registers are in
3433          * little-endian order.
3434          */
3435         reta = 0;
3436         for (i = 0, j = 0; i < sp_reta_size; i++, j++) {
3437                 reta_reg = ixgbe_reta_reg_get(hw->mac.type, i);
3438
3439                 if (j == dev->data->nb_rx_queues)
3440                         j = 0;
3441                 reta = (reta << 8) | j;
3442                 if ((i & 3) == 3)
3443                         IXGBE_WRITE_REG(hw, reta_reg,
3444                                         rte_bswap32(reta));
3445         }
3446
3447         /*
3448          * Configure the RSS key and the RSS protocols used to compute
3449          * the RSS hash of input packets.
3450          */
3451         rss_conf = dev->data->dev_conf.rx_adv_conf.rss_conf;
3452         if ((rss_conf.rss_hf & IXGBE_RSS_OFFLOAD_ALL) == 0) {
3453                 ixgbe_rss_disable(dev);
3454                 return;
3455         }
3456         if (rss_conf.rss_key == NULL)
3457                 rss_conf.rss_key = rss_intel_key; /* Default hash key */
3458         ixgbe_hw_rss_hash_set(hw, &rss_conf);
3459 }
3460
3461 #define NUM_VFTA_REGISTERS 128
3462 #define NIC_RX_BUFFER_SIZE 0x200
3463 #define X550_RX_BUFFER_SIZE 0x180
3464
3465 static void
3466 ixgbe_vmdq_dcb_configure(struct rte_eth_dev *dev)
3467 {
3468         struct rte_eth_vmdq_dcb_conf *cfg;
3469         struct ixgbe_hw *hw;
3470         enum rte_eth_nb_pools num_pools;
3471         uint32_t mrqc, vt_ctl, queue_mapping, vlanctrl;
3472         uint16_t pbsize;
3473         uint8_t nb_tcs; /* number of traffic classes */
3474         int i;
3475
3476         PMD_INIT_FUNC_TRACE();
3477         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3478         cfg = &dev->data->dev_conf.rx_adv_conf.vmdq_dcb_conf;
3479         num_pools = cfg->nb_queue_pools;
3480         /* Check we have a valid number of pools */
3481         if (num_pools != ETH_16_POOLS && num_pools != ETH_32_POOLS) {
3482                 ixgbe_rss_disable(dev);
3483                 return;
3484         }
3485         /* 16 pools -> 8 traffic classes, 32 pools -> 4 traffic classes */
3486         nb_tcs = (uint8_t)(ETH_VMDQ_DCB_NUM_QUEUES / (int)num_pools);
3487
3488         /*
3489          * RXPBSIZE
3490          * split rx buffer up into sections, each for 1 traffic class
3491          */
3492         switch (hw->mac.type) {
3493         case ixgbe_mac_X550:
3494         case ixgbe_mac_X550EM_x:
3495         case ixgbe_mac_X550EM_a:
3496                 pbsize = (uint16_t)(X550_RX_BUFFER_SIZE / nb_tcs);
3497                 break;
3498         default:
3499                 pbsize = (uint16_t)(NIC_RX_BUFFER_SIZE / nb_tcs);
3500                 break;
3501         }
3502         for (i = 0; i < nb_tcs; i++) {
3503                 uint32_t rxpbsize = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i));
3504
3505                 rxpbsize &= (~(0x3FF << IXGBE_RXPBSIZE_SHIFT));
3506                 /* clear 10 bits. */
3507                 rxpbsize |= (pbsize << IXGBE_RXPBSIZE_SHIFT); /* set value */
3508                 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpbsize);
3509         }
3510         /* zero alloc all unused TCs */
3511         for (i = nb_tcs; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
3512                 uint32_t rxpbsize = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i));
3513
3514                 rxpbsize &= (~(0x3FF << IXGBE_RXPBSIZE_SHIFT));
3515                 /* clear 10 bits. */
3516                 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpbsize);
3517         }
3518
3519         /* MRQC: enable vmdq and dcb */
3520         mrqc = (num_pools == ETH_16_POOLS) ?
3521                 IXGBE_MRQC_VMDQRT8TCEN : IXGBE_MRQC_VMDQRT4TCEN;
3522         IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
3523
3524         /* PFVTCTL: turn on virtualisation and set the default pool */
3525         vt_ctl = IXGBE_VT_CTL_VT_ENABLE | IXGBE_VT_CTL_REPLEN;
3526         if (cfg->enable_default_pool) {
3527                 vt_ctl |= (cfg->default_pool << IXGBE_VT_CTL_POOL_SHIFT);
3528         } else {
3529                 vt_ctl |= IXGBE_VT_CTL_DIS_DEFPL;
3530         }
3531
3532         IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vt_ctl);
3533
3534         /* RTRUP2TC: mapping user priorities to traffic classes (TCs) */
3535         queue_mapping = 0;
3536         for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++)
3537                 /*
3538                  * mapping is done with 3 bits per priority,
3539                  * so shift by i*3 each time
3540                  */
3541                 queue_mapping |= ((cfg->dcb_tc[i] & 0x07) << (i * 3));
3542
3543         IXGBE_WRITE_REG(hw, IXGBE_RTRUP2TC, queue_mapping);
3544
3545         /* RTRPCS: DCB related */
3546         IXGBE_WRITE_REG(hw, IXGBE_RTRPCS, IXGBE_RMCS_RRM);
3547
3548         /* VLNCTRL: enable vlan filtering and allow all vlan tags through */
3549         vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
3550         vlanctrl |= IXGBE_VLNCTRL_VFE; /* enable vlan filters */
3551         IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
3552
3553         /* VFTA - enable all vlan filters */
3554         for (i = 0; i < NUM_VFTA_REGISTERS; i++) {
3555                 IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
3556         }
3557
3558         /* VFRE: pool enabling for receive - 16 or 32 */
3559         IXGBE_WRITE_REG(hw, IXGBE_VFRE(0),
3560                         num_pools == ETH_16_POOLS ? 0xFFFF : 0xFFFFFFFF);
3561
3562         /*
3563          * MPSAR - allow pools to read specific mac addresses
3564          * In this case, all pools should be able to read from mac addr 0
3565          */
3566         IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(0), 0xFFFFFFFF);
3567         IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(0), 0xFFFFFFFF);
3568
3569         /* PFVLVF, PFVLVFB: set up filters for vlan tags as configured */
3570         for (i = 0; i < cfg->nb_pool_maps; i++) {
3571                 /* set vlan id in VF register and set the valid bit */
3572                 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), (IXGBE_VLVF_VIEN |
3573                                 (cfg->pool_map[i].vlan_id & 0xFFF)));
3574                 /*
3575                  * Put the allowed pools in VFB reg. As we only have 16 or 32
3576                  * pools, we only need to use the first half of the register
3577                  * i.e. bits 0-31
3578                  */
3579                 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(i*2), cfg->pool_map[i].pools);
3580         }
3581 }
3582
3583 /**
3584  * ixgbe_dcb_config_tx_hw_config - Configure general DCB TX parameters
3585  * @dev: pointer to eth_dev structure
3586  * @dcb_config: pointer to ixgbe_dcb_config structure
3587  */
3588 static void
3589 ixgbe_dcb_tx_hw_config(struct rte_eth_dev *dev,
3590                        struct ixgbe_dcb_config *dcb_config)
3591 {
3592         uint32_t reg;
3593         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3594
3595         PMD_INIT_FUNC_TRACE();
3596         if (hw->mac.type != ixgbe_mac_82598EB) {
3597                 /* Disable the Tx desc arbiter so that MTQC can be changed */
3598                 reg = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
3599                 reg |= IXGBE_RTTDCS_ARBDIS;
3600                 IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, reg);
3601
3602                 /* Enable DCB for Tx with 8 TCs */
3603                 if (dcb_config->num_tcs.pg_tcs == 8) {
3604                         reg = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ;
3605                 } else {
3606                         reg = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ;
3607                 }
3608                 if (dcb_config->vt_mode)
3609                         reg |= IXGBE_MTQC_VT_ENA;
3610                 IXGBE_WRITE_REG(hw, IXGBE_MTQC, reg);
3611
3612                 /* Enable the Tx desc arbiter */
3613                 reg = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
3614                 reg &= ~IXGBE_RTTDCS_ARBDIS;
3615                 IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, reg);
3616
3617                 /* Enable Security TX Buffer IFG for DCB */
3618                 reg = IXGBE_READ_REG(hw, IXGBE_SECTXMINIFG);
3619                 reg |= IXGBE_SECTX_DCB;
3620                 IXGBE_WRITE_REG(hw, IXGBE_SECTXMINIFG, reg);
3621         }
3622 }
3623
3624 /**
3625  * ixgbe_vmdq_dcb_hw_tx_config - Configure general VMDQ+DCB TX parameters
3626  * @dev: pointer to rte_eth_dev structure
3627  * @dcb_config: pointer to ixgbe_dcb_config structure
3628  */
3629 static void
3630 ixgbe_vmdq_dcb_hw_tx_config(struct rte_eth_dev *dev,
3631                         struct ixgbe_dcb_config *dcb_config)
3632 {
3633         struct rte_eth_vmdq_dcb_tx_conf *vmdq_tx_conf =
3634                         &dev->data->dev_conf.tx_adv_conf.vmdq_dcb_tx_conf;
3635         struct ixgbe_hw *hw =
3636                         IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3637
3638         PMD_INIT_FUNC_TRACE();
3639         if (hw->mac.type != ixgbe_mac_82598EB)
3640                 /*PF VF Transmit Enable*/
3641                 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0),
3642                         vmdq_tx_conf->nb_queue_pools == ETH_16_POOLS ? 0xFFFF : 0xFFFFFFFF);
3643
3644         /*Configure general DCB TX parameters*/
3645         ixgbe_dcb_tx_hw_config(dev, dcb_config);
3646 }
3647
3648 static void
3649 ixgbe_vmdq_dcb_rx_config(struct rte_eth_dev *dev,
3650                         struct ixgbe_dcb_config *dcb_config)
3651 {
3652         struct rte_eth_vmdq_dcb_conf *vmdq_rx_conf =
3653                         &dev->data->dev_conf.rx_adv_conf.vmdq_dcb_conf;
3654         struct ixgbe_dcb_tc_config *tc;
3655         uint8_t i, j;
3656
3657         /* convert rte_eth_conf.rx_adv_conf to struct ixgbe_dcb_config */
3658         if (vmdq_rx_conf->nb_queue_pools == ETH_16_POOLS) {
3659                 dcb_config->num_tcs.pg_tcs = ETH_8_TCS;
3660                 dcb_config->num_tcs.pfc_tcs = ETH_8_TCS;
3661         } else {
3662                 dcb_config->num_tcs.pg_tcs = ETH_4_TCS;
3663                 dcb_config->num_tcs.pfc_tcs = ETH_4_TCS;
3664         }
3665
3666         /* Initialize User Priority to Traffic Class mapping */
3667         for (j = 0; j < IXGBE_DCB_MAX_TRAFFIC_CLASS; j++) {
3668                 tc = &dcb_config->tc_config[j];
3669                 tc->path[IXGBE_DCB_RX_CONFIG].up_to_tc_bitmap = 0;
3670         }
3671
3672         /* User Priority to Traffic Class mapping */
3673         for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
3674                 j = vmdq_rx_conf->dcb_tc[i];
3675                 tc = &dcb_config->tc_config[j];
3676                 tc->path[IXGBE_DCB_RX_CONFIG].up_to_tc_bitmap |=
3677                                                 (uint8_t)(1 << i);
3678         }
3679 }
3680
3681 static void
3682 ixgbe_dcb_vt_tx_config(struct rte_eth_dev *dev,
3683                         struct ixgbe_dcb_config *dcb_config)
3684 {
3685         struct rte_eth_vmdq_dcb_tx_conf *vmdq_tx_conf =
3686                         &dev->data->dev_conf.tx_adv_conf.vmdq_dcb_tx_conf;
3687         struct ixgbe_dcb_tc_config *tc;
3688         uint8_t i, j;
3689
3690         /* convert rte_eth_conf.rx_adv_conf to struct ixgbe_dcb_config */
3691         if (vmdq_tx_conf->nb_queue_pools == ETH_16_POOLS) {
3692                 dcb_config->num_tcs.pg_tcs = ETH_8_TCS;
3693                 dcb_config->num_tcs.pfc_tcs = ETH_8_TCS;
3694         } else {
3695                 dcb_config->num_tcs.pg_tcs = ETH_4_TCS;
3696                 dcb_config->num_tcs.pfc_tcs = ETH_4_TCS;
3697         }
3698
3699         /* Initialize User Priority to Traffic Class mapping */
3700         for (j = 0; j < IXGBE_DCB_MAX_TRAFFIC_CLASS; j++) {
3701                 tc = &dcb_config->tc_config[j];
3702                 tc->path[IXGBE_DCB_TX_CONFIG].up_to_tc_bitmap = 0;
3703         }
3704
3705         /* User Priority to Traffic Class mapping */
3706         for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
3707                 j = vmdq_tx_conf->dcb_tc[i];
3708                 tc = &dcb_config->tc_config[j];
3709                 tc->path[IXGBE_DCB_TX_CONFIG].up_to_tc_bitmap |=
3710                                                 (uint8_t)(1 << i);
3711         }
3712 }
3713
3714 static void
3715 ixgbe_dcb_rx_config(struct rte_eth_dev *dev,
3716                 struct ixgbe_dcb_config *dcb_config)
3717 {
3718         struct rte_eth_dcb_rx_conf *rx_conf =
3719                         &dev->data->dev_conf.rx_adv_conf.dcb_rx_conf;
3720         struct ixgbe_dcb_tc_config *tc;
3721         uint8_t i, j;
3722
3723         dcb_config->num_tcs.pg_tcs = (uint8_t)rx_conf->nb_tcs;
3724         dcb_config->num_tcs.pfc_tcs = (uint8_t)rx_conf->nb_tcs;
3725
3726         /* Initialize User Priority to Traffic Class mapping */
3727         for (j = 0; j < IXGBE_DCB_MAX_TRAFFIC_CLASS; j++) {
3728                 tc = &dcb_config->tc_config[j];
3729                 tc->path[IXGBE_DCB_RX_CONFIG].up_to_tc_bitmap = 0;
3730         }
3731
3732         /* User Priority to Traffic Class mapping */
3733         for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
3734                 j = rx_conf->dcb_tc[i];
3735                 tc = &dcb_config->tc_config[j];
3736                 tc->path[IXGBE_DCB_RX_CONFIG].up_to_tc_bitmap |=
3737                                                 (uint8_t)(1 << i);
3738         }
3739 }
3740
3741 static void
3742 ixgbe_dcb_tx_config(struct rte_eth_dev *dev,
3743                 struct ixgbe_dcb_config *dcb_config)
3744 {
3745         struct rte_eth_dcb_tx_conf *tx_conf =
3746                         &dev->data->dev_conf.tx_adv_conf.dcb_tx_conf;
3747         struct ixgbe_dcb_tc_config *tc;
3748         uint8_t i, j;
3749
3750         dcb_config->num_tcs.pg_tcs = (uint8_t)tx_conf->nb_tcs;
3751         dcb_config->num_tcs.pfc_tcs = (uint8_t)tx_conf->nb_tcs;
3752
3753         /* Initialize User Priority to Traffic Class mapping */
3754         for (j = 0; j < IXGBE_DCB_MAX_TRAFFIC_CLASS; j++) {
3755                 tc = &dcb_config->tc_config[j];
3756                 tc->path[IXGBE_DCB_TX_CONFIG].up_to_tc_bitmap = 0;
3757         }
3758
3759         /* User Priority to Traffic Class mapping */
3760         for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
3761                 j = tx_conf->dcb_tc[i];
3762                 tc = &dcb_config->tc_config[j];
3763                 tc->path[IXGBE_DCB_TX_CONFIG].up_to_tc_bitmap |=
3764                                                 (uint8_t)(1 << i);
3765         }
3766 }
3767
3768 /**
3769  * ixgbe_dcb_rx_hw_config - Configure general DCB RX HW parameters
3770  * @dev: pointer to eth_dev structure
3771  * @dcb_config: pointer to ixgbe_dcb_config structure
3772  */
3773 static void
3774 ixgbe_dcb_rx_hw_config(struct rte_eth_dev *dev,
3775                        struct ixgbe_dcb_config *dcb_config)
3776 {
3777         uint32_t reg;
3778         uint32_t vlanctrl;
3779         uint8_t i;
3780         uint32_t q;
3781         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3782
3783         PMD_INIT_FUNC_TRACE();
3784         /*
3785          * Disable the arbiter before changing parameters
3786          * (always enable recycle mode; WSP)
3787          */
3788         reg = IXGBE_RTRPCS_RRM | IXGBE_RTRPCS_RAC | IXGBE_RTRPCS_ARBDIS;
3789         IXGBE_WRITE_REG(hw, IXGBE_RTRPCS, reg);
3790
3791         if (hw->mac.type != ixgbe_mac_82598EB) {
3792                 reg = IXGBE_READ_REG(hw, IXGBE_MRQC);
3793                 if (dcb_config->num_tcs.pg_tcs == 4) {
3794                         if (dcb_config->vt_mode)
3795                                 reg = (reg & ~IXGBE_MRQC_MRQE_MASK) |
3796                                         IXGBE_MRQC_VMDQRT4TCEN;
3797                         else {
3798                                 /* no matter the mode is DCB or DCB_RSS, just
3799                                  * set the MRQE to RSSXTCEN. RSS is controlled
3800                                  * by RSS_FIELD
3801                                  */
3802                                 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, 0);
3803                                 reg = (reg & ~IXGBE_MRQC_MRQE_MASK) |
3804                                         IXGBE_MRQC_RTRSS4TCEN;
3805                         }
3806                 }
3807                 if (dcb_config->num_tcs.pg_tcs == 8) {
3808                         if (dcb_config->vt_mode)
3809                                 reg = (reg & ~IXGBE_MRQC_MRQE_MASK) |
3810                                         IXGBE_MRQC_VMDQRT8TCEN;
3811                         else {
3812                                 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, 0);
3813                                 reg = (reg & ~IXGBE_MRQC_MRQE_MASK) |
3814                                         IXGBE_MRQC_RTRSS8TCEN;
3815                         }
3816                 }
3817
3818                 IXGBE_WRITE_REG(hw, IXGBE_MRQC, reg);
3819
3820                 if (RTE_ETH_DEV_SRIOV(dev).active == 0) {
3821                         /* Disable drop for all queues in VMDQ mode*/
3822                         for (q = 0; q < IXGBE_MAX_RX_QUEUE_NUM; q++)
3823                                 IXGBE_WRITE_REG(hw, IXGBE_QDE,
3824                                                 (IXGBE_QDE_WRITE |
3825                                                  (q << IXGBE_QDE_IDX_SHIFT)));
3826                 } else {
3827                         /* Enable drop for all queues in SRIOV mode */
3828                         for (q = 0; q < IXGBE_MAX_RX_QUEUE_NUM; q++)
3829                                 IXGBE_WRITE_REG(hw, IXGBE_QDE,
3830                                                 (IXGBE_QDE_WRITE |
3831                                                  (q << IXGBE_QDE_IDX_SHIFT) |
3832                                                  IXGBE_QDE_ENABLE));
3833                 }
3834         }
3835
3836         /* VLNCTRL: enable vlan filtering and allow all vlan tags through */
3837         vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
3838         vlanctrl |= IXGBE_VLNCTRL_VFE; /* enable vlan filters */
3839         IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
3840
3841         /* VFTA - enable all vlan filters */
3842         for (i = 0; i < NUM_VFTA_REGISTERS; i++) {
3843                 IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
3844         }
3845
3846         /*
3847          * Configure Rx packet plane (recycle mode; WSP) and
3848          * enable arbiter
3849          */
3850         reg = IXGBE_RTRPCS_RRM | IXGBE_RTRPCS_RAC;
3851         IXGBE_WRITE_REG(hw, IXGBE_RTRPCS, reg);
3852 }
3853
3854 static void
3855 ixgbe_dcb_hw_arbite_rx_config(struct ixgbe_hw *hw, uint16_t *refill,
3856                         uint16_t *max, uint8_t *bwg_id, uint8_t *tsa, uint8_t *map)
3857 {
3858         switch (hw->mac.type) {
3859         case ixgbe_mac_82598EB:
3860                 ixgbe_dcb_config_rx_arbiter_82598(hw, refill, max, tsa);
3861                 break;
3862         case ixgbe_mac_82599EB:
3863         case ixgbe_mac_X540:
3864         case ixgbe_mac_X550:
3865         case ixgbe_mac_X550EM_x:
3866         case ixgbe_mac_X550EM_a:
3867                 ixgbe_dcb_config_rx_arbiter_82599(hw, refill, max, bwg_id,
3868                                                   tsa, map);
3869                 break;
3870         default:
3871                 break;
3872         }
3873 }
3874
3875 static void
3876 ixgbe_dcb_hw_arbite_tx_config(struct ixgbe_hw *hw, uint16_t *refill, uint16_t *max,
3877                             uint8_t *bwg_id, uint8_t *tsa, uint8_t *map)
3878 {
3879         switch (hw->mac.type) {
3880         case ixgbe_mac_82598EB:
3881                 ixgbe_dcb_config_tx_desc_arbiter_82598(hw, refill, max, bwg_id, tsa);
3882                 ixgbe_dcb_config_tx_data_arbiter_82598(hw, refill, max, bwg_id, tsa);
3883                 break;
3884         case ixgbe_mac_82599EB:
3885         case ixgbe_mac_X540:
3886         case ixgbe_mac_X550:
3887         case ixgbe_mac_X550EM_x:
3888         case ixgbe_mac_X550EM_a:
3889                 ixgbe_dcb_config_tx_desc_arbiter_82599(hw, refill, max, bwg_id, tsa);
3890                 ixgbe_dcb_config_tx_data_arbiter_82599(hw, refill, max, bwg_id, tsa, map);
3891                 break;
3892         default:
3893                 break;
3894         }
3895 }
3896
3897 #define DCB_RX_CONFIG  1
3898 #define DCB_TX_CONFIG  1
3899 #define DCB_TX_PB      1024
3900 /**
3901  * ixgbe_dcb_hw_configure - Enable DCB and configure
3902  * general DCB in VT mode and non-VT mode parameters
3903  * @dev: pointer to rte_eth_dev structure
3904  * @dcb_config: pointer to ixgbe_dcb_config structure
3905  */
3906 static int
3907 ixgbe_dcb_hw_configure(struct rte_eth_dev *dev,
3908                         struct ixgbe_dcb_config *dcb_config)
3909 {
3910         int     ret = 0;
3911         uint8_t i, pfc_en, nb_tcs;
3912         uint16_t pbsize, rx_buffer_size;
3913         uint8_t config_dcb_rx = 0;
3914         uint8_t config_dcb_tx = 0;
3915         uint8_t tsa[IXGBE_DCB_MAX_TRAFFIC_CLASS] = {0};
3916         uint8_t bwgid[IXGBE_DCB_MAX_TRAFFIC_CLASS] = {0};
3917         uint16_t refill[IXGBE_DCB_MAX_TRAFFIC_CLASS] = {0};
3918         uint16_t max[IXGBE_DCB_MAX_TRAFFIC_CLASS] = {0};
3919         uint8_t map[IXGBE_DCB_MAX_TRAFFIC_CLASS] = {0};
3920         struct ixgbe_dcb_tc_config *tc;
3921         uint32_t max_frame = dev->data->mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
3922         struct ixgbe_hw *hw =
3923                         IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3924         struct ixgbe_bw_conf *bw_conf =
3925                 IXGBE_DEV_PRIVATE_TO_BW_CONF(dev->data->dev_private);
3926
3927         switch (dev->data->dev_conf.rxmode.mq_mode) {
3928         case ETH_MQ_RX_VMDQ_DCB:
3929                 dcb_config->vt_mode = true;
3930                 if (hw->mac.type != ixgbe_mac_82598EB) {
3931                         config_dcb_rx = DCB_RX_CONFIG;
3932                         /*
3933                          *get dcb and VT rx configuration parameters
3934                          *from rte_eth_conf
3935                          */
3936                         ixgbe_vmdq_dcb_rx_config(dev, dcb_config);
3937                         /*Configure general VMDQ and DCB RX parameters*/
3938                         ixgbe_vmdq_dcb_configure(dev);
3939                 }
3940                 break;
3941         case ETH_MQ_RX_DCB:
3942         case ETH_MQ_RX_DCB_RSS:
3943                 dcb_config->vt_mode = false;
3944                 config_dcb_rx = DCB_RX_CONFIG;
3945                 /* Get dcb TX configuration parameters from rte_eth_conf */
3946                 ixgbe_dcb_rx_config(dev, dcb_config);
3947                 /*Configure general DCB RX parameters*/
3948                 ixgbe_dcb_rx_hw_config(dev, dcb_config);
3949                 break;
3950         default:
3951                 PMD_INIT_LOG(ERR, "Incorrect DCB RX mode configuration");
3952                 break;
3953         }
3954         switch (dev->data->dev_conf.txmode.mq_mode) {
3955         case ETH_MQ_TX_VMDQ_DCB:
3956                 dcb_config->vt_mode = true;
3957                 config_dcb_tx = DCB_TX_CONFIG;
3958                 /* get DCB and VT TX configuration parameters
3959                  * from rte_eth_conf
3960                  */
3961                 ixgbe_dcb_vt_tx_config(dev, dcb_config);
3962                 /*Configure general VMDQ and DCB TX parameters*/
3963                 ixgbe_vmdq_dcb_hw_tx_config(dev, dcb_config);
3964                 break;
3965
3966         case ETH_MQ_TX_DCB:
3967                 dcb_config->vt_mode = false;
3968                 config_dcb_tx = DCB_TX_CONFIG;
3969                 /*get DCB TX configuration parameters from rte_eth_conf*/
3970                 ixgbe_dcb_tx_config(dev, dcb_config);
3971                 /*Configure general DCB TX parameters*/
3972                 ixgbe_dcb_tx_hw_config(dev, dcb_config);
3973                 break;
3974         default:
3975                 PMD_INIT_LOG(ERR, "Incorrect DCB TX mode configuration");
3976                 break;
3977         }
3978
3979         nb_tcs = dcb_config->num_tcs.pfc_tcs;
3980         /* Unpack map */
3981         ixgbe_dcb_unpack_map_cee(dcb_config, IXGBE_DCB_RX_CONFIG, map);
3982         if (nb_tcs == ETH_4_TCS) {
3983                 /* Avoid un-configured priority mapping to TC0 */
3984                 uint8_t j = 4;
3985                 uint8_t mask = 0xFF;
3986
3987                 for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES - 4; i++)
3988                         mask = (uint8_t)(mask & (~(1 << map[i])));
3989                 for (i = 0; mask && (i < IXGBE_DCB_MAX_TRAFFIC_CLASS); i++) {
3990                         if ((mask & 0x1) && (j < ETH_DCB_NUM_USER_PRIORITIES))
3991                                 map[j++] = i;
3992                         mask >>= 1;
3993                 }
3994                 /* Re-configure 4 TCs BW */
3995                 for (i = 0; i < nb_tcs; i++) {
3996                         tc = &dcb_config->tc_config[i];
3997                         if (bw_conf->tc_num != nb_tcs)
3998                                 tc->path[IXGBE_DCB_TX_CONFIG].bwg_percent =
3999                                         (uint8_t)(100 / nb_tcs);
4000                         tc->path[IXGBE_DCB_RX_CONFIG].bwg_percent =
4001                                                 (uint8_t)(100 / nb_tcs);
4002                 }
4003                 for (; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
4004                         tc = &dcb_config->tc_config[i];
4005                         tc->path[IXGBE_DCB_TX_CONFIG].bwg_percent = 0;
4006                         tc->path[IXGBE_DCB_RX_CONFIG].bwg_percent = 0;
4007                 }
4008         } else {
4009                 /* Re-configure 8 TCs BW */
4010                 for (i = 0; i < nb_tcs; i++) {
4011                         tc = &dcb_config->tc_config[i];
4012                         if (bw_conf->tc_num != nb_tcs)
4013                                 tc->path[IXGBE_DCB_TX_CONFIG].bwg_percent =
4014                                         (uint8_t)(100 / nb_tcs + (i & 1));
4015                         tc->path[IXGBE_DCB_RX_CONFIG].bwg_percent =
4016                                 (uint8_t)(100 / nb_tcs + (i & 1));
4017                 }
4018         }
4019
4020         switch (hw->mac.type) {
4021         case ixgbe_mac_X550:
4022         case ixgbe_mac_X550EM_x:
4023         case ixgbe_mac_X550EM_a:
4024                 rx_buffer_size = X550_RX_BUFFER_SIZE;
4025                 break;
4026         default:
4027                 rx_buffer_size = NIC_RX_BUFFER_SIZE;
4028                 break;
4029         }
4030
4031         if (config_dcb_rx) {
4032                 /* Set RX buffer size */
4033                 pbsize = (uint16_t)(rx_buffer_size / nb_tcs);
4034                 uint32_t rxpbsize = pbsize << IXGBE_RXPBSIZE_SHIFT;
4035
4036                 for (i = 0; i < nb_tcs; i++) {
4037                         IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpbsize);
4038                 }
4039                 /* zero alloc all unused TCs */
4040                 for (; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
4041                         IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
4042                 }
4043         }
4044         if (config_dcb_tx) {
4045                 /* Only support an equally distributed
4046                  *  Tx packet buffer strategy.
4047                  */
4048                 uint32_t txpktsize = IXGBE_TXPBSIZE_MAX / nb_tcs;
4049                 uint32_t txpbthresh = (txpktsize / DCB_TX_PB) - IXGBE_TXPKT_SIZE_MAX;
4050
4051                 for (i = 0; i < nb_tcs; i++) {
4052                         IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), txpktsize);
4053                         IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), txpbthresh);
4054                 }
4055                 /* Clear unused TCs, if any, to zero buffer size*/
4056                 for (; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
4057                         IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), 0);
4058                         IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), 0);
4059                 }
4060         }
4061
4062         /*Calculates traffic class credits*/
4063         ixgbe_dcb_calculate_tc_credits_cee(hw, dcb_config, max_frame,
4064                                 IXGBE_DCB_TX_CONFIG);
4065         ixgbe_dcb_calculate_tc_credits_cee(hw, dcb_config, max_frame,
4066                                 IXGBE_DCB_RX_CONFIG);
4067
4068         if (config_dcb_rx) {
4069                 /* Unpack CEE standard containers */
4070                 ixgbe_dcb_unpack_refill_cee(dcb_config, IXGBE_DCB_RX_CONFIG, refill);
4071                 ixgbe_dcb_unpack_max_cee(dcb_config, max);
4072                 ixgbe_dcb_unpack_bwgid_cee(dcb_config, IXGBE_DCB_RX_CONFIG, bwgid);
4073                 ixgbe_dcb_unpack_tsa_cee(dcb_config, IXGBE_DCB_RX_CONFIG, tsa);
4074                 /* Configure PG(ETS) RX */
4075                 ixgbe_dcb_hw_arbite_rx_config(hw, refill, max, bwgid, tsa, map);
4076         }
4077
4078         if (config_dcb_tx) {
4079                 /* Unpack CEE standard containers */
4080                 ixgbe_dcb_unpack_refill_cee(dcb_config, IXGBE_DCB_TX_CONFIG, refill);
4081                 ixgbe_dcb_unpack_max_cee(dcb_config, max);
4082                 ixgbe_dcb_unpack_bwgid_cee(dcb_config, IXGBE_DCB_TX_CONFIG, bwgid);
4083                 ixgbe_dcb_unpack_tsa_cee(dcb_config, IXGBE_DCB_TX_CONFIG, tsa);
4084                 /* Configure PG(ETS) TX */
4085                 ixgbe_dcb_hw_arbite_tx_config(hw, refill, max, bwgid, tsa, map);
4086         }
4087
4088         /*Configure queue statistics registers*/
4089         ixgbe_dcb_config_tc_stats_82599(hw, dcb_config);
4090
4091         /* Check if the PFC is supported */
4092         if (dev->data->dev_conf.dcb_capability_en & ETH_DCB_PFC_SUPPORT) {
4093                 pbsize = (uint16_t)(rx_buffer_size / nb_tcs);
4094                 for (i = 0; i < nb_tcs; i++) {
4095                         /*
4096                         * If the TC count is 8,and the default high_water is 48,
4097                         * the low_water is 16 as default.
4098                         */
4099                         hw->fc.high_water[i] = (pbsize * 3) / 4;
4100                         hw->fc.low_water[i] = pbsize / 4;
4101                         /* Enable pfc for this TC */
4102                         tc = &dcb_config->tc_config[i];
4103                         tc->pfc = ixgbe_dcb_pfc_enabled;
4104                 }
4105                 ixgbe_dcb_unpack_pfc_cee(dcb_config, map, &pfc_en);
4106                 if (dcb_config->num_tcs.pfc_tcs == ETH_4_TCS)
4107                         pfc_en &= 0x0F;
4108                 ret = ixgbe_dcb_config_pfc(hw, pfc_en, map);
4109         }
4110
4111         return ret;
4112 }
4113
4114 /**
4115  * ixgbe_configure_dcb - Configure DCB  Hardware
4116  * @dev: pointer to rte_eth_dev
4117  */
4118 void ixgbe_configure_dcb(struct rte_eth_dev *dev)
4119 {
4120         struct ixgbe_dcb_config *dcb_cfg =
4121                         IXGBE_DEV_PRIVATE_TO_DCB_CFG(dev->data->dev_private);
4122         struct rte_eth_conf *dev_conf = &(dev->data->dev_conf);
4123
4124         PMD_INIT_FUNC_TRACE();
4125
4126         /* check support mq_mode for DCB */
4127         if ((dev_conf->rxmode.mq_mode != ETH_MQ_RX_VMDQ_DCB) &&
4128             (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB) &&
4129             (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB_RSS))
4130                 return;
4131
4132         if (dev->data->nb_rx_queues > ETH_DCB_NUM_QUEUES)
4133                 return;
4134
4135         /** Configure DCB hardware **/
4136         ixgbe_dcb_hw_configure(dev, dcb_cfg);
4137 }
4138
4139 /*
4140  * VMDq only support for 10 GbE NIC.
4141  */
4142 static void
4143 ixgbe_vmdq_rx_hw_configure(struct rte_eth_dev *dev)
4144 {
4145         struct rte_eth_vmdq_rx_conf *cfg;
4146         struct ixgbe_hw *hw;
4147         enum rte_eth_nb_pools num_pools;
4148         uint32_t mrqc, vt_ctl, vlanctrl;
4149         uint32_t vmolr = 0;
4150         int i;
4151
4152         PMD_INIT_FUNC_TRACE();
4153         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4154         cfg = &dev->data->dev_conf.rx_adv_conf.vmdq_rx_conf;
4155         num_pools = cfg->nb_queue_pools;
4156
4157         ixgbe_rss_disable(dev);
4158
4159         /* MRQC: enable vmdq */
4160         mrqc = IXGBE_MRQC_VMDQEN;
4161         IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
4162
4163         /* PFVTCTL: turn on virtualisation and set the default pool */
4164         vt_ctl = IXGBE_VT_CTL_VT_ENABLE | IXGBE_VT_CTL_REPLEN;
4165         if (cfg->enable_default_pool)
4166                 vt_ctl |= (cfg->default_pool << IXGBE_VT_CTL_POOL_SHIFT);
4167         else
4168                 vt_ctl |= IXGBE_VT_CTL_DIS_DEFPL;
4169
4170         IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vt_ctl);
4171
4172         for (i = 0; i < (int)num_pools; i++) {
4173                 vmolr = ixgbe_convert_vm_rx_mask_to_val(cfg->rx_mode, vmolr);
4174                 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
4175         }
4176
4177         /* VLNCTRL: enable vlan filtering and allow all vlan tags through */
4178         vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
4179         vlanctrl |= IXGBE_VLNCTRL_VFE; /* enable vlan filters */
4180         IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
4181
4182         /* VFTA - enable all vlan filters */
4183         for (i = 0; i < NUM_VFTA_REGISTERS; i++)
4184                 IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), UINT32_MAX);
4185
4186         /* VFRE: pool enabling for receive - 64 */
4187         IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), UINT32_MAX);
4188         if (num_pools == ETH_64_POOLS)
4189                 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), UINT32_MAX);
4190
4191         /*
4192          * MPSAR - allow pools to read specific mac addresses
4193          * In this case, all pools should be able to read from mac addr 0
4194          */
4195         IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(0), UINT32_MAX);
4196         IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(0), UINT32_MAX);
4197
4198         /* PFVLVF, PFVLVFB: set up filters for vlan tags as configured */
4199         for (i = 0; i < cfg->nb_pool_maps; i++) {
4200                 /* set vlan id in VF register and set the valid bit */
4201                 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), (IXGBE_VLVF_VIEN |
4202                                 (cfg->pool_map[i].vlan_id & IXGBE_RXD_VLAN_ID_MASK)));
4203                 /*
4204                  * Put the allowed pools in VFB reg. As we only have 16 or 64
4205                  * pools, we only need to use the first half of the register
4206                  * i.e. bits 0-31
4207                  */
4208                 if (((cfg->pool_map[i].pools >> 32) & UINT32_MAX) == 0)
4209                         IXGBE_WRITE_REG(hw, IXGBE_VLVFB(i * 2),
4210                                         (cfg->pool_map[i].pools & UINT32_MAX));
4211                 else
4212                         IXGBE_WRITE_REG(hw, IXGBE_VLVFB((i * 2 + 1)),
4213                                         ((cfg->pool_map[i].pools >> 32) & UINT32_MAX));
4214
4215         }
4216
4217         /* PFDMA Tx General Switch Control Enables VMDQ loopback */
4218         if (cfg->enable_loop_back) {
4219                 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
4220                 for (i = 0; i < RTE_IXGBE_VMTXSW_REGISTER_COUNT; i++)
4221                         IXGBE_WRITE_REG(hw, IXGBE_VMTXSW(i), UINT32_MAX);
4222         }
4223
4224         IXGBE_WRITE_FLUSH(hw);
4225 }
4226
4227 /*
4228  * ixgbe_dcb_config_tx_hw_config - Configure general VMDq TX parameters
4229  * @hw: pointer to hardware structure
4230  */
4231 static void
4232 ixgbe_vmdq_tx_hw_configure(struct ixgbe_hw *hw)
4233 {
4234         uint32_t reg;
4235         uint32_t q;
4236
4237         PMD_INIT_FUNC_TRACE();
4238         /*PF VF Transmit Enable*/
4239         IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), UINT32_MAX);
4240         IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), UINT32_MAX);
4241
4242         /* Disable the Tx desc arbiter so that MTQC can be changed */
4243         reg = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
4244         reg |= IXGBE_RTTDCS_ARBDIS;
4245         IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, reg);
4246
4247         reg = IXGBE_MTQC_VT_ENA | IXGBE_MTQC_64VF;
4248         IXGBE_WRITE_REG(hw, IXGBE_MTQC, reg);
4249
4250         /* Disable drop for all queues */
4251         for (q = 0; q < IXGBE_MAX_RX_QUEUE_NUM; q++)
4252                 IXGBE_WRITE_REG(hw, IXGBE_QDE,
4253                   (IXGBE_QDE_WRITE | (q << IXGBE_QDE_IDX_SHIFT)));
4254
4255         /* Enable the Tx desc arbiter */
4256         reg = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
4257         reg &= ~IXGBE_RTTDCS_ARBDIS;
4258         IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, reg);
4259
4260         IXGBE_WRITE_FLUSH(hw);
4261 }
4262
4263 static int __attribute__((cold))
4264 ixgbe_alloc_rx_queue_mbufs(struct ixgbe_rx_queue *rxq)
4265 {
4266         struct ixgbe_rx_entry *rxe = rxq->sw_ring;
4267         uint64_t dma_addr;
4268         unsigned int i;
4269
4270         /* Initialize software ring entries */
4271         for (i = 0; i < rxq->nb_rx_desc; i++) {
4272                 volatile union ixgbe_adv_rx_desc *rxd;
4273                 struct rte_mbuf *mbuf = rte_mbuf_raw_alloc(rxq->mb_pool);
4274
4275                 if (mbuf == NULL) {
4276                         PMD_INIT_LOG(ERR, "RX mbuf alloc failed queue_id=%u",
4277                                      (unsigned) rxq->queue_id);
4278                         return -ENOMEM;
4279                 }
4280
4281                 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
4282                 mbuf->port = rxq->port_id;
4283
4284                 dma_addr =
4285                         rte_cpu_to_le_64(rte_mbuf_data_iova_default(mbuf));
4286                 rxd = &rxq->rx_ring[i];
4287                 rxd->read.hdr_addr = 0;
4288                 rxd->read.pkt_addr = dma_addr;
4289                 rxe[i].mbuf = mbuf;
4290         }
4291
4292         return 0;
4293 }
4294
4295 static int
4296 ixgbe_config_vf_rss(struct rte_eth_dev *dev)
4297 {
4298         struct ixgbe_hw *hw;
4299         uint32_t mrqc;
4300
4301         ixgbe_rss_configure(dev);
4302
4303         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4304
4305         /* MRQC: enable VF RSS */
4306         mrqc = IXGBE_READ_REG(hw, IXGBE_MRQC);
4307         mrqc &= ~IXGBE_MRQC_MRQE_MASK;
4308         switch (RTE_ETH_DEV_SRIOV(dev).active) {
4309         case ETH_64_POOLS:
4310                 mrqc |= IXGBE_MRQC_VMDQRSS64EN;
4311                 break;
4312
4313         case ETH_32_POOLS:
4314                 mrqc |= IXGBE_MRQC_VMDQRSS32EN;
4315                 break;
4316
4317         default:
4318                 PMD_INIT_LOG(ERR, "Invalid pool number in IOV mode with VMDQ RSS");
4319                 return -EINVAL;
4320         }
4321
4322         IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
4323
4324         return 0;
4325 }
4326
4327 static int
4328 ixgbe_config_vf_default(struct rte_eth_dev *dev)
4329 {
4330         struct ixgbe_hw *hw =
4331                 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4332
4333         switch (RTE_ETH_DEV_SRIOV(dev).active) {
4334         case ETH_64_POOLS:
4335                 IXGBE_WRITE_REG(hw, IXGBE_MRQC,
4336                         IXGBE_MRQC_VMDQEN);
4337                 break;
4338
4339         case ETH_32_POOLS:
4340                 IXGBE_WRITE_REG(hw, IXGBE_MRQC,
4341                         IXGBE_MRQC_VMDQRT4TCEN);
4342                 break;
4343
4344         case ETH_16_POOLS:
4345                 IXGBE_WRITE_REG(hw, IXGBE_MRQC,
4346                         IXGBE_MRQC_VMDQRT8TCEN);
4347                 break;
4348         default:
4349                 PMD_INIT_LOG(ERR,
4350                         "invalid pool number in IOV mode");
4351                 break;
4352         }
4353         return 0;
4354 }
4355
4356 static int
4357 ixgbe_dev_mq_rx_configure(struct rte_eth_dev *dev)
4358 {
4359         struct ixgbe_hw *hw =
4360                 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4361
4362         if (hw->mac.type == ixgbe_mac_82598EB)
4363                 return 0;
4364
4365         if (RTE_ETH_DEV_SRIOV(dev).active == 0) {
4366                 /*
4367                  * SRIOV inactive scheme
4368                  * any DCB/RSS w/o VMDq multi-queue setting
4369                  */
4370                 switch (dev->data->dev_conf.rxmode.mq_mode) {
4371                 case ETH_MQ_RX_RSS:
4372                 case ETH_MQ_RX_DCB_RSS:
4373                 case ETH_MQ_RX_VMDQ_RSS:
4374                         ixgbe_rss_configure(dev);
4375                         break;
4376
4377                 case ETH_MQ_RX_VMDQ_DCB:
4378                         ixgbe_vmdq_dcb_configure(dev);
4379                         break;
4380
4381                 case ETH_MQ_RX_VMDQ_ONLY:
4382                         ixgbe_vmdq_rx_hw_configure(dev);
4383                         break;
4384
4385                 case ETH_MQ_RX_NONE:
4386                 default:
4387                         /* if mq_mode is none, disable rss mode.*/
4388                         ixgbe_rss_disable(dev);
4389                         break;
4390                 }
4391         } else {
4392                 /* SRIOV active scheme
4393                  * Support RSS together with SRIOV.
4394                  */
4395                 switch (dev->data->dev_conf.rxmode.mq_mode) {
4396                 case ETH_MQ_RX_RSS:
4397                 case ETH_MQ_RX_VMDQ_RSS:
4398                         ixgbe_config_vf_rss(dev);
4399                         break;
4400                 case ETH_MQ_RX_VMDQ_DCB:
4401                 case ETH_MQ_RX_DCB:
4402                 /* In SRIOV, the configuration is the same as VMDq case */
4403                         ixgbe_vmdq_dcb_configure(dev);
4404                         break;
4405                 /* DCB/RSS together with SRIOV is not supported */
4406                 case ETH_MQ_RX_VMDQ_DCB_RSS:
4407                 case ETH_MQ_RX_DCB_RSS:
4408                         PMD_INIT_LOG(ERR,
4409                                 "Could not support DCB/RSS with VMDq & SRIOV");
4410                         return -1;
4411                 default:
4412                         ixgbe_config_vf_default(dev);
4413                         break;
4414                 }
4415         }
4416
4417         return 0;
4418 }
4419
4420 static int
4421 ixgbe_dev_mq_tx_configure(struct rte_eth_dev *dev)
4422 {
4423         struct ixgbe_hw *hw =
4424                 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4425         uint32_t mtqc;
4426         uint32_t rttdcs;
4427
4428         if (hw->mac.type == ixgbe_mac_82598EB)
4429                 return 0;
4430
4431         /* disable arbiter before setting MTQC */
4432         rttdcs = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
4433         rttdcs |= IXGBE_RTTDCS_ARBDIS;
4434         IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs);
4435
4436         if (RTE_ETH_DEV_SRIOV(dev).active == 0) {
4437                 /*
4438                  * SRIOV inactive scheme
4439                  * any DCB w/o VMDq multi-queue setting
4440                  */
4441                 if (dev->data->dev_conf.txmode.mq_mode == ETH_MQ_TX_VMDQ_ONLY)
4442                         ixgbe_vmdq_tx_hw_configure(hw);
4443                 else {
4444                         mtqc = IXGBE_MTQC_64Q_1PB;
4445                         IXGBE_WRITE_REG(hw, IXGBE_MTQC, mtqc);
4446                 }
4447         } else {
4448                 switch (RTE_ETH_DEV_SRIOV(dev).active) {
4449
4450                 /*
4451                  * SRIOV active scheme
4452                  * FIXME if support DCB together with VMDq & SRIOV
4453                  */
4454                 case ETH_64_POOLS:
4455                         mtqc = IXGBE_MTQC_VT_ENA | IXGBE_MTQC_64VF;
4456                         break;
4457                 case ETH_32_POOLS:
4458                         mtqc = IXGBE_MTQC_VT_ENA | IXGBE_MTQC_32VF;
4459                         break;
4460                 case ETH_16_POOLS:
4461                         mtqc = IXGBE_MTQC_VT_ENA | IXGBE_MTQC_RT_ENA |
4462                                 IXGBE_MTQC_8TC_8TQ;
4463                         break;
4464                 default:
4465                         mtqc = IXGBE_MTQC_64Q_1PB;
4466                         PMD_INIT_LOG(ERR, "invalid pool number in IOV mode");
4467                 }
4468                 IXGBE_WRITE_REG(hw, IXGBE_MTQC, mtqc);
4469         }
4470
4471         /* re-enable arbiter */
4472         rttdcs &= ~IXGBE_RTTDCS_ARBDIS;
4473         IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs);
4474
4475         return 0;
4476 }
4477
4478 /**
4479  * ixgbe_get_rscctl_maxdesc - Calculate the RSCCTL[n].MAXDESC for PF
4480  *
4481  * Return the RSCCTL[n].MAXDESC for 82599 and x540 PF devices according to the
4482  * spec rev. 3.0 chapter 8.2.3.8.13.
4483  *
4484  * @pool Memory pool of the Rx queue
4485  */
4486 static inline uint32_t
4487 ixgbe_get_rscctl_maxdesc(struct rte_mempool *pool)
4488 {
4489         struct rte_pktmbuf_pool_private *mp_priv = rte_mempool_get_priv(pool);
4490
4491         /* MAXDESC * SRRCTL.BSIZEPKT must not exceed 64 KB minus one */
4492         uint16_t maxdesc =
4493                 IPV4_MAX_PKT_LEN /
4494                         (mp_priv->mbuf_data_room_size - RTE_PKTMBUF_HEADROOM);
4495
4496         if (maxdesc >= 16)
4497                 return IXGBE_RSCCTL_MAXDESC_16;
4498         else if (maxdesc >= 8)
4499                 return IXGBE_RSCCTL_MAXDESC_8;
4500         else if (maxdesc >= 4)
4501                 return IXGBE_RSCCTL_MAXDESC_4;
4502         else
4503                 return IXGBE_RSCCTL_MAXDESC_1;
4504 }
4505
4506 /**
4507  * ixgbe_set_ivar - Setup the correct IVAR register for a particular MSIX
4508  * interrupt
4509  *
4510  * (Taken from FreeBSD tree)
4511  * (yes this is all very magic and confusing :)
4512  *
4513  * @dev port handle
4514  * @entry the register array entry
4515  * @vector the MSIX vector for this queue
4516  * @type RX/TX/MISC
4517  */
4518 static void
4519 ixgbe_set_ivar(struct rte_eth_dev *dev, u8 entry, u8 vector, s8 type)
4520 {
4521         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4522         u32 ivar, index;
4523
4524         vector |= IXGBE_IVAR_ALLOC_VAL;
4525
4526         switch (hw->mac.type) {
4527
4528         case ixgbe_mac_82598EB:
4529                 if (type == -1)
4530                         entry = IXGBE_IVAR_OTHER_CAUSES_INDEX;
4531                 else
4532                         entry += (type * 64);
4533                 index = (entry >> 2) & 0x1F;
4534                 ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index));
4535                 ivar &= ~(0xFF << (8 * (entry & 0x3)));
4536                 ivar |= (vector << (8 * (entry & 0x3)));
4537                 IXGBE_WRITE_REG(hw, IXGBE_IVAR(index), ivar);
4538                 break;
4539
4540         case ixgbe_mac_82599EB:
4541         case ixgbe_mac_X540:
4542                 if (type == -1) { /* MISC IVAR */
4543                         index = (entry & 1) * 8;
4544                         ivar = IXGBE_READ_REG(hw, IXGBE_IVAR_MISC);
4545                         ivar &= ~(0xFF << index);
4546                         ivar |= (vector << index);
4547                         IXGBE_WRITE_REG(hw, IXGBE_IVAR_MISC, ivar);
4548                 } else {        /* RX/TX IVARS */
4549                         index = (16 * (entry & 1)) + (8 * type);
4550                         ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(entry >> 1));
4551                         ivar &= ~(0xFF << index);
4552                         ivar |= (vector << index);
4553                         IXGBE_WRITE_REG(hw, IXGBE_IVAR(entry >> 1), ivar);
4554                 }
4555
4556                 break;
4557
4558         default:
4559                 break;
4560         }
4561 }
4562
4563 void __attribute__((cold))
4564 ixgbe_set_rx_function(struct rte_eth_dev *dev)
4565 {
4566         uint16_t i, rx_using_sse;
4567         struct ixgbe_adapter *adapter =
4568                 (struct ixgbe_adapter *)dev->data->dev_private;
4569
4570         /*
4571          * In order to allow Vector Rx there are a few configuration
4572          * conditions to be met and Rx Bulk Allocation should be allowed.
4573          */
4574         if (ixgbe_rx_vec_dev_conf_condition_check(dev) ||
4575             !adapter->rx_bulk_alloc_allowed) {
4576                 PMD_INIT_LOG(DEBUG, "Port[%d] doesn't meet Vector Rx "
4577                                     "preconditions or RTE_IXGBE_INC_VECTOR is "
4578                                     "not enabled",
4579                              dev->data->port_id);
4580
4581                 adapter->rx_vec_allowed = false;
4582         }
4583
4584         /*
4585          * Initialize the appropriate LRO callback.
4586          *
4587          * If all queues satisfy the bulk allocation preconditions
4588          * (hw->rx_bulk_alloc_allowed is TRUE) then we may use bulk allocation.
4589          * Otherwise use a single allocation version.
4590          */
4591         if (dev->data->lro) {
4592                 if (adapter->rx_bulk_alloc_allowed) {
4593                         PMD_INIT_LOG(DEBUG, "LRO is requested. Using a bulk "
4594                                            "allocation version");
4595                         dev->rx_pkt_burst = ixgbe_recv_pkts_lro_bulk_alloc;
4596                 } else {
4597                         PMD_INIT_LOG(DEBUG, "LRO is requested. Using a single "
4598                                            "allocation version");
4599                         dev->rx_pkt_burst = ixgbe_recv_pkts_lro_single_alloc;
4600                 }
4601         } else if (dev->data->scattered_rx) {
4602                 /*
4603                  * Set the non-LRO scattered callback: there are Vector and
4604                  * single allocation versions.
4605                  */
4606                 if (adapter->rx_vec_allowed) {
4607                         PMD_INIT_LOG(DEBUG, "Using Vector Scattered Rx "
4608                                             "callback (port=%d).",
4609                                      dev->data->port_id);
4610
4611                         dev->rx_pkt_burst = ixgbe_recv_scattered_pkts_vec;
4612                 } else if (adapter->rx_bulk_alloc_allowed) {
4613                         PMD_INIT_LOG(DEBUG, "Using a Scattered with bulk "
4614                                            "allocation callback (port=%d).",
4615                                      dev->data->port_id);
4616                         dev->rx_pkt_burst = ixgbe_recv_pkts_lro_bulk_alloc;
4617                 } else {
4618                         PMD_INIT_LOG(DEBUG, "Using Regualr (non-vector, "
4619                                             "single allocation) "
4620                                             "Scattered Rx callback "
4621                                             "(port=%d).",
4622                                      dev->data->port_id);
4623
4624                         dev->rx_pkt_burst = ixgbe_recv_pkts_lro_single_alloc;
4625                 }
4626         /*
4627          * Below we set "simple" callbacks according to port/queues parameters.
4628          * If parameters allow we are going to choose between the following
4629          * callbacks:
4630          *    - Vector
4631          *    - Bulk Allocation
4632          *    - Single buffer allocation (the simplest one)
4633          */
4634         } else if (adapter->rx_vec_allowed) {
4635                 PMD_INIT_LOG(DEBUG, "Vector rx enabled, please make sure RX "
4636                                     "burst size no less than %d (port=%d).",
4637                              RTE_IXGBE_DESCS_PER_LOOP,
4638                              dev->data->port_id);
4639
4640                 dev->rx_pkt_burst = ixgbe_recv_pkts_vec;
4641         } else if (adapter->rx_bulk_alloc_allowed) {
4642                 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are "
4643                                     "satisfied. Rx Burst Bulk Alloc function "
4644                                     "will be used on port=%d.",
4645                              dev->data->port_id);
4646
4647                 dev->rx_pkt_burst = ixgbe_recv_pkts_bulk_alloc;
4648         } else {
4649                 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are not "
4650                                     "satisfied, or Scattered Rx is requested "
4651                                     "(port=%d).",
4652                              dev->data->port_id);
4653
4654                 dev->rx_pkt_burst = ixgbe_recv_pkts;
4655         }
4656
4657         /* Propagate information about RX function choice through all queues. */
4658
4659         rx_using_sse =
4660                 (dev->rx_pkt_burst == ixgbe_recv_scattered_pkts_vec ||
4661                 dev->rx_pkt_burst == ixgbe_recv_pkts_vec);
4662
4663         for (i = 0; i < dev->data->nb_rx_queues; i++) {
4664                 struct ixgbe_rx_queue *rxq = dev->data->rx_queues[i];
4665
4666                 rxq->rx_using_sse = rx_using_sse;
4667 #ifdef RTE_LIBRTE_SECURITY
4668                 rxq->using_ipsec = !!(dev->data->dev_conf.rxmode.offloads &
4669                                 DEV_RX_OFFLOAD_SECURITY);
4670 #endif
4671         }
4672 }
4673
4674 /**
4675  * ixgbe_set_rsc - configure RSC related port HW registers
4676  *
4677  * Configures the port's RSC related registers according to the 4.6.7.2 chapter
4678  * of 82599 Spec (x540 configuration is virtually the same).
4679  *
4680  * @dev port handle
4681  *
4682  * Returns 0 in case of success or a non-zero error code
4683  */
4684 static int
4685 ixgbe_set_rsc(struct rte_eth_dev *dev)
4686 {
4687         struct rte_eth_rxmode *rx_conf = &dev->data->dev_conf.rxmode;
4688         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4689         struct rte_eth_dev_info dev_info = { 0 };
4690         bool rsc_capable = false;
4691         uint16_t i;
4692         uint32_t rdrxctl;
4693         uint32_t rfctl;
4694
4695         /* Sanity check */
4696         dev->dev_ops->dev_infos_get(dev, &dev_info);
4697         if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_LRO)
4698                 rsc_capable = true;
4699
4700         if (!rsc_capable && (rx_conf->offloads & DEV_RX_OFFLOAD_TCP_LRO)) {
4701                 PMD_INIT_LOG(CRIT, "LRO is requested on HW that doesn't "
4702                                    "support it");
4703                 return -EINVAL;
4704         }
4705
4706         /* RSC global configuration (chapter 4.6.7.2.1 of 82599 Spec) */
4707
4708         if (rte_eth_dev_must_keep_crc(rx_conf->offloads) &&
4709              (rx_conf->offloads & DEV_RX_OFFLOAD_TCP_LRO)) {
4710                 /*
4711                  * According to chapter of 4.6.7.2.1 of the Spec Rev.
4712                  * 3.0 RSC configuration requires HW CRC stripping being
4713                  * enabled. If user requested both HW CRC stripping off
4714                  * and RSC on - return an error.
4715                  */
4716                 PMD_INIT_LOG(CRIT, "LRO can't be enabled when HW CRC "
4717                                     "is disabled");
4718                 return -EINVAL;
4719         }
4720
4721         /* RFCTL configuration  */
4722         rfctl = IXGBE_READ_REG(hw, IXGBE_RFCTL);
4723         if ((rsc_capable) && (rx_conf->offloads & DEV_RX_OFFLOAD_TCP_LRO))
4724                 /*
4725                  * Since NFS packets coalescing is not supported - clear
4726                  * RFCTL.NFSW_DIS and RFCTL.NFSR_DIS when RSC is
4727                  * enabled.
4728                  */
4729                 rfctl &= ~(IXGBE_RFCTL_RSC_DIS | IXGBE_RFCTL_NFSW_DIS |
4730                            IXGBE_RFCTL_NFSR_DIS);
4731         else
4732                 rfctl |= IXGBE_RFCTL_RSC_DIS;
4733         IXGBE_WRITE_REG(hw, IXGBE_RFCTL, rfctl);
4734
4735         /* If LRO hasn't been requested - we are done here. */
4736         if (!(rx_conf->offloads & DEV_RX_OFFLOAD_TCP_LRO))
4737                 return 0;
4738
4739         /* Set RDRXCTL.RSCACKC bit */
4740         rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
4741         rdrxctl |= IXGBE_RDRXCTL_RSCACKC;
4742         IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl);
4743
4744         /* Per-queue RSC configuration (chapter 4.6.7.2.2 of 82599 Spec) */
4745         for (i = 0; i < dev->data->nb_rx_queues; i++) {
4746                 struct ixgbe_rx_queue *rxq = dev->data->rx_queues[i];
4747                 uint32_t srrctl =
4748                         IXGBE_READ_REG(hw, IXGBE_SRRCTL(rxq->reg_idx));
4749                 uint32_t rscctl =
4750                         IXGBE_READ_REG(hw, IXGBE_RSCCTL(rxq->reg_idx));
4751                 uint32_t psrtype =
4752                         IXGBE_READ_REG(hw, IXGBE_PSRTYPE(rxq->reg_idx));
4753                 uint32_t eitr =
4754                         IXGBE_READ_REG(hw, IXGBE_EITR(rxq->reg_idx));
4755
4756                 /*
4757                  * ixgbe PMD doesn't support header-split at the moment.
4758                  *
4759                  * Following the 4.6.7.2.1 chapter of the 82599/x540
4760                  * Spec if RSC is enabled the SRRCTL[n].BSIZEHEADER
4761                  * should be configured even if header split is not
4762                  * enabled. We will configure it 128 bytes following the
4763                  * recommendation in the spec.
4764                  */
4765                 srrctl &= ~IXGBE_SRRCTL_BSIZEHDR_MASK;
4766                 srrctl |= (128 << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) &
4767                                             IXGBE_SRRCTL_BSIZEHDR_MASK;
4768
4769                 /*
4770                  * TODO: Consider setting the Receive Descriptor Minimum
4771                  * Threshold Size for an RSC case. This is not an obviously
4772                  * beneficiary option but the one worth considering...
4773                  */
4774
4775                 rscctl |= IXGBE_RSCCTL_RSCEN;
4776                 rscctl |= ixgbe_get_rscctl_maxdesc(rxq->mb_pool);
4777                 psrtype |= IXGBE_PSRTYPE_TCPHDR;
4778
4779                 /*
4780                  * RSC: Set ITR interval corresponding to 2K ints/s.
4781                  *
4782                  * Full-sized RSC aggregations for a 10Gb/s link will
4783                  * arrive at about 20K aggregation/s rate.
4784                  *
4785                  * 2K inst/s rate will make only 10% of the
4786                  * aggregations to be closed due to the interrupt timer
4787                  * expiration for a streaming at wire-speed case.
4788                  *
4789                  * For a sparse streaming case this setting will yield
4790                  * at most 500us latency for a single RSC aggregation.
4791                  */
4792                 eitr &= ~IXGBE_EITR_ITR_INT_MASK;
4793                 eitr |= IXGBE_EITR_INTERVAL_US(IXGBE_QUEUE_ITR_INTERVAL_DEFAULT);
4794                 eitr |= IXGBE_EITR_CNT_WDIS;
4795
4796                 IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(rxq->reg_idx), srrctl);
4797                 IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(rxq->reg_idx), rscctl);
4798                 IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(rxq->reg_idx), psrtype);
4799                 IXGBE_WRITE_REG(hw, IXGBE_EITR(rxq->reg_idx), eitr);
4800
4801                 /*
4802                  * RSC requires the mapping of the queue to the
4803                  * interrupt vector.
4804                  */
4805                 ixgbe_set_ivar(dev, rxq->reg_idx, i, 0);
4806         }
4807
4808         dev->data->lro = 1;
4809
4810         PMD_INIT_LOG(DEBUG, "enabling LRO mode");
4811
4812         return 0;
4813 }
4814
4815 /*
4816  * Initializes Receive Unit.
4817  */
4818 int __attribute__((cold))
4819 ixgbe_dev_rx_init(struct rte_eth_dev *dev)
4820 {
4821         struct ixgbe_hw     *hw;
4822         struct ixgbe_rx_queue *rxq;
4823         uint64_t bus_addr;
4824         uint32_t rxctrl;
4825         uint32_t fctrl;
4826         uint32_t hlreg0;
4827         uint32_t maxfrs;
4828         uint32_t srrctl;
4829         uint32_t rdrxctl;
4830         uint32_t rxcsum;
4831         uint16_t buf_size;
4832         uint16_t i;
4833         struct rte_eth_rxmode *rx_conf = &dev->data->dev_conf.rxmode;
4834         int rc;
4835
4836         PMD_INIT_FUNC_TRACE();
4837         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4838
4839         /*
4840          * Make sure receives are disabled while setting
4841          * up the RX context (registers, descriptor rings, etc.).
4842          */
4843         rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
4844         IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN);
4845
4846         /* Enable receipt of broadcasted frames */
4847         fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
4848         fctrl |= IXGBE_FCTRL_BAM;
4849         fctrl |= IXGBE_FCTRL_DPF;
4850         fctrl |= IXGBE_FCTRL_PMCF;
4851         IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
4852
4853         /*
4854          * Configure CRC stripping, if any.
4855          */
4856         hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
4857         if (rte_eth_dev_must_keep_crc(rx_conf->offloads))
4858                 hlreg0 &= ~IXGBE_HLREG0_RXCRCSTRP;
4859         else
4860                 hlreg0 |= IXGBE_HLREG0_RXCRCSTRP;
4861
4862         /*
4863          * Configure jumbo frame support, if any.
4864          */
4865         if (rx_conf->offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
4866                 hlreg0 |= IXGBE_HLREG0_JUMBOEN;
4867                 maxfrs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
4868                 maxfrs &= 0x0000FFFF;
4869                 maxfrs |= (rx_conf->max_rx_pkt_len << 16);
4870                 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, maxfrs);
4871         } else
4872                 hlreg0 &= ~IXGBE_HLREG0_JUMBOEN;
4873
4874         /*
4875          * If loopback mode is configured for 82599, set LPBK bit.
4876          */
4877         if (hw->mac.type == ixgbe_mac_82599EB &&
4878                         dev->data->dev_conf.lpbk_mode == IXGBE_LPBK_82599_TX_RX)
4879                 hlreg0 |= IXGBE_HLREG0_LPBK;
4880         else
4881                 hlreg0 &= ~IXGBE_HLREG0_LPBK;
4882
4883         IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
4884
4885         /*
4886          * Assume no header split and no VLAN strip support
4887          * on any Rx queue first .
4888          */
4889         rx_conf->offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
4890         /* Setup RX queues */
4891         for (i = 0; i < dev->data->nb_rx_queues; i++) {
4892                 rxq = dev->data->rx_queues[i];
4893
4894                 /*
4895                  * Reset crc_len in case it was changed after queue setup by a
4896                  * call to configure.
4897                  */
4898                 rxq->crc_len = rte_eth_dev_must_keep_crc(rx_conf->offloads) ?
4899                                 ETHER_CRC_LEN : 0;
4900
4901                 /* Setup the Base and Length of the Rx Descriptor Rings */
4902                 bus_addr = rxq->rx_ring_phys_addr;
4903                 IXGBE_WRITE_REG(hw, IXGBE_RDBAL(rxq->reg_idx),
4904                                 (uint32_t)(bus_addr & 0x00000000ffffffffULL));
4905                 IXGBE_WRITE_REG(hw, IXGBE_RDBAH(rxq->reg_idx),
4906                                 (uint32_t)(bus_addr >> 32));
4907                 IXGBE_WRITE_REG(hw, IXGBE_RDLEN(rxq->reg_idx),
4908                                 rxq->nb_rx_desc * sizeof(union ixgbe_adv_rx_desc));
4909                 IXGBE_WRITE_REG(hw, IXGBE_RDH(rxq->reg_idx), 0);
4910                 IXGBE_WRITE_REG(hw, IXGBE_RDT(rxq->reg_idx), 0);
4911
4912                 /* Configure the SRRCTL register */
4913                 srrctl = IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
4914
4915                 /* Set if packets are dropped when no descriptors available */
4916                 if (rxq->drop_en)
4917                         srrctl |= IXGBE_SRRCTL_DROP_EN;
4918
4919                 /*
4920                  * Configure the RX buffer size in the BSIZEPACKET field of
4921                  * the SRRCTL register of the queue.
4922                  * The value is in 1 KB resolution. Valid values can be from
4923                  * 1 KB to 16 KB.
4924                  */
4925                 buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rxq->mb_pool) -
4926                         RTE_PKTMBUF_HEADROOM);
4927                 srrctl |= ((buf_size >> IXGBE_SRRCTL_BSIZEPKT_SHIFT) &
4928                            IXGBE_SRRCTL_BSIZEPKT_MASK);
4929
4930                 IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(rxq->reg_idx), srrctl);
4931
4932                 buf_size = (uint16_t) ((srrctl & IXGBE_SRRCTL_BSIZEPKT_MASK) <<
4933                                        IXGBE_SRRCTL_BSIZEPKT_SHIFT);
4934
4935                 /* It adds dual VLAN length for supporting dual VLAN */
4936                 if (dev->data->dev_conf.rxmode.max_rx_pkt_len +
4937                                             2 * IXGBE_VLAN_TAG_SIZE > buf_size)
4938                         dev->data->scattered_rx = 1;
4939                 if (rxq->offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
4940                         rx_conf->offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
4941         }
4942
4943         if (rx_conf->offloads & DEV_RX_OFFLOAD_SCATTER)
4944                 dev->data->scattered_rx = 1;
4945
4946         /*
4947          * Device configured with multiple RX queues.
4948          */
4949         ixgbe_dev_mq_rx_configure(dev);
4950
4951         /*
4952          * Setup the Checksum Register.
4953          * Disable Full-Packet Checksum which is mutually exclusive with RSS.
4954          * Enable IP/L4 checkum computation by hardware if requested to do so.
4955          */
4956         rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM);
4957         rxcsum |= IXGBE_RXCSUM_PCSD;
4958         if (rx_conf->offloads & DEV_RX_OFFLOAD_CHECKSUM)
4959                 rxcsum |= IXGBE_RXCSUM_IPPCSE;
4960         else
4961                 rxcsum &= ~IXGBE_RXCSUM_IPPCSE;
4962
4963         IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum);
4964
4965         if (hw->mac.type == ixgbe_mac_82599EB ||
4966             hw->mac.type == ixgbe_mac_X540) {
4967                 rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
4968                 if (rte_eth_dev_must_keep_crc(rx_conf->offloads))
4969                         rdrxctl &= ~IXGBE_RDRXCTL_CRCSTRIP;
4970                 else
4971                         rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP;
4972                 rdrxctl &= ~IXGBE_RDRXCTL_RSCFRSTSIZE;
4973                 IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl);
4974         }
4975
4976         rc = ixgbe_set_rsc(dev);
4977         if (rc)
4978                 return rc;
4979
4980         ixgbe_set_rx_function(dev);
4981
4982         return 0;
4983 }
4984
4985 /*
4986  * Initializes Transmit Unit.
4987  */
4988 void __attribute__((cold))
4989 ixgbe_dev_tx_init(struct rte_eth_dev *dev)
4990 {
4991         struct ixgbe_hw     *hw;
4992         struct ixgbe_tx_queue *txq;
4993         uint64_t bus_addr;
4994         uint32_t hlreg0;
4995         uint32_t txctrl;
4996         uint16_t i;
4997
4998         PMD_INIT_FUNC_TRACE();
4999         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5000
5001         /* Enable TX CRC (checksum offload requirement) and hw padding
5002          * (TSO requirement)
5003          */
5004         hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
5005         hlreg0 |= (IXGBE_HLREG0_TXCRCEN | IXGBE_HLREG0_TXPADEN);
5006         IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
5007
5008         /* Setup the Base and Length of the Tx Descriptor Rings */
5009         for (i = 0; i < dev->data->nb_tx_queues; i++) {
5010                 txq = dev->data->tx_queues[i];
5011
5012                 bus_addr = txq->tx_ring_phys_addr;
5013                 IXGBE_WRITE_REG(hw, IXGBE_TDBAL(txq->reg_idx),
5014                                 (uint32_t)(bus_addr & 0x00000000ffffffffULL));
5015                 IXGBE_WRITE_REG(hw, IXGBE_TDBAH(txq->reg_idx),
5016                                 (uint32_t)(bus_addr >> 32));
5017                 IXGBE_WRITE_REG(hw, IXGBE_TDLEN(txq->reg_idx),
5018                                 txq->nb_tx_desc * sizeof(union ixgbe_adv_tx_desc));
5019                 /* Setup the HW Tx Head and TX Tail descriptor pointers */
5020                 IXGBE_WRITE_REG(hw, IXGBE_TDH(txq->reg_idx), 0);
5021                 IXGBE_WRITE_REG(hw, IXGBE_TDT(txq->reg_idx), 0);
5022
5023                 /*
5024                  * Disable Tx Head Writeback RO bit, since this hoses
5025                  * bookkeeping if things aren't delivered in order.
5026                  */
5027                 switch (hw->mac.type) {
5028                 case ixgbe_mac_82598EB:
5029                         txctrl = IXGBE_READ_REG(hw,
5030                                                 IXGBE_DCA_TXCTRL(txq->reg_idx));
5031                         txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
5032                         IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(txq->reg_idx),
5033                                         txctrl);
5034                         break;
5035
5036                 case ixgbe_mac_82599EB:
5037                 case ixgbe_mac_X540:
5038                 case ixgbe_mac_X550:
5039                 case ixgbe_mac_X550EM_x:
5040                 case ixgbe_mac_X550EM_a:
5041                 default:
5042                         txctrl = IXGBE_READ_REG(hw,
5043                                                 IXGBE_DCA_TXCTRL_82599(txq->reg_idx));
5044                         txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
5045                         IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(txq->reg_idx),
5046                                         txctrl);
5047                         break;
5048                 }
5049         }
5050
5051         /* Device configured with multiple TX queues. */
5052         ixgbe_dev_mq_tx_configure(dev);
5053 }
5054
5055 /*
5056  * Set up link for 82599 loopback mode Tx->Rx.
5057  */
5058 static inline void __attribute__((cold))
5059 ixgbe_setup_loopback_link_82599(struct ixgbe_hw *hw)
5060 {
5061         PMD_INIT_FUNC_TRACE();
5062
5063         if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
5064                 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM) !=
5065                                 IXGBE_SUCCESS) {
5066                         PMD_INIT_LOG(ERR, "Could not enable loopback mode");
5067                         /* ignore error */
5068                         return;
5069                 }
5070         }
5071
5072         /* Restart link */
5073         IXGBE_WRITE_REG(hw,
5074                         IXGBE_AUTOC,
5075                         IXGBE_AUTOC_LMS_10G_LINK_NO_AN | IXGBE_AUTOC_FLU);
5076         ixgbe_reset_pipeline_82599(hw);
5077
5078         hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
5079         msec_delay(50);
5080 }
5081
5082
5083 /*
5084  * Start Transmit and Receive Units.
5085  */
5086 int __attribute__((cold))
5087 ixgbe_dev_rxtx_start(struct rte_eth_dev *dev)
5088 {
5089         struct ixgbe_hw     *hw;
5090         struct ixgbe_tx_queue *txq;
5091         struct ixgbe_rx_queue *rxq;
5092         uint32_t txdctl;
5093         uint32_t dmatxctl;
5094         uint32_t rxctrl;
5095         uint16_t i;
5096         int ret = 0;
5097
5098         PMD_INIT_FUNC_TRACE();
5099         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5100
5101         for (i = 0; i < dev->data->nb_tx_queues; i++) {
5102                 txq = dev->data->tx_queues[i];
5103                 /* Setup Transmit Threshold Registers */
5104                 txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(txq->reg_idx));
5105                 txdctl |= txq->pthresh & 0x7F;
5106                 txdctl |= ((txq->hthresh & 0x7F) << 8);
5107                 txdctl |= ((txq->wthresh & 0x7F) << 16);
5108                 IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(txq->reg_idx), txdctl);
5109         }
5110
5111         if (hw->mac.type != ixgbe_mac_82598EB) {
5112                 dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL);
5113                 dmatxctl |= IXGBE_DMATXCTL_TE;
5114                 IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl);
5115         }
5116
5117         for (i = 0; i < dev->data->nb_tx_queues; i++) {
5118                 txq = dev->data->tx_queues[i];
5119                 if (!txq->tx_deferred_start) {
5120                         ret = ixgbe_dev_tx_queue_start(dev, i);
5121                         if (ret < 0)
5122                                 return ret;
5123                 }
5124         }
5125
5126         for (i = 0; i < dev->data->nb_rx_queues; i++) {
5127                 rxq = dev->data->rx_queues[i];
5128                 if (!rxq->rx_deferred_start) {
5129                         ret = ixgbe_dev_rx_queue_start(dev, i);
5130                         if (ret < 0)
5131                                 return ret;
5132                 }
5133         }
5134
5135         /* Enable Receive engine */
5136         rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
5137         if (hw->mac.type == ixgbe_mac_82598EB)
5138                 rxctrl |= IXGBE_RXCTRL_DMBYPS;
5139         rxctrl |= IXGBE_RXCTRL_RXEN;
5140         hw->mac.ops.enable_rx_dma(hw, rxctrl);
5141
5142         /* If loopback mode is enabled for 82599, set up the link accordingly */
5143         if (hw->mac.type == ixgbe_mac_82599EB &&
5144                         dev->data->dev_conf.lpbk_mode == IXGBE_LPBK_82599_TX_RX)
5145                 ixgbe_setup_loopback_link_82599(hw);
5146
5147 #ifdef RTE_LIBRTE_SECURITY
5148         if ((dev->data->dev_conf.rxmode.offloads &
5149                         DEV_RX_OFFLOAD_SECURITY) ||
5150                 (dev->data->dev_conf.txmode.offloads &
5151                         DEV_TX_OFFLOAD_SECURITY)) {
5152                 ret = ixgbe_crypto_enable_ipsec(dev);
5153                 if (ret != 0) {
5154                         PMD_DRV_LOG(ERR,
5155                                     "ixgbe_crypto_enable_ipsec fails with %d.",
5156                                     ret);
5157                         return ret;
5158                 }
5159         }
5160 #endif
5161
5162         return 0;
5163 }
5164
5165 /*
5166  * Start Receive Units for specified queue.
5167  */
5168 int __attribute__((cold))
5169 ixgbe_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
5170 {
5171         struct ixgbe_hw     *hw;
5172         struct ixgbe_rx_queue *rxq;
5173         uint32_t rxdctl;
5174         int poll_ms;
5175
5176         PMD_INIT_FUNC_TRACE();
5177         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5178
5179         rxq = dev->data->rx_queues[rx_queue_id];
5180
5181         /* Allocate buffers for descriptor rings */
5182         if (ixgbe_alloc_rx_queue_mbufs(rxq) != 0) {
5183                 PMD_INIT_LOG(ERR, "Could not alloc mbuf for queue:%d",
5184                              rx_queue_id);
5185                 return -1;
5186         }
5187         rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx));
5188         rxdctl |= IXGBE_RXDCTL_ENABLE;
5189         IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(rxq->reg_idx), rxdctl);
5190
5191         /* Wait until RX Enable ready */
5192         poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS;
5193         do {
5194                 rte_delay_ms(1);
5195                 rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx));
5196         } while (--poll_ms && !(rxdctl & IXGBE_RXDCTL_ENABLE));
5197         if (!poll_ms)
5198                 PMD_INIT_LOG(ERR, "Could not enable Rx Queue %d", rx_queue_id);
5199         rte_wmb();
5200         IXGBE_WRITE_REG(hw, IXGBE_RDH(rxq->reg_idx), 0);
5201         IXGBE_WRITE_REG(hw, IXGBE_RDT(rxq->reg_idx), rxq->nb_rx_desc - 1);
5202         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
5203
5204         return 0;
5205 }
5206
5207 /*
5208  * Stop Receive Units for specified queue.
5209  */
5210 int __attribute__((cold))
5211 ixgbe_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
5212 {
5213         struct ixgbe_hw     *hw;
5214         struct ixgbe_adapter *adapter =
5215                 (struct ixgbe_adapter *)dev->data->dev_private;
5216         struct ixgbe_rx_queue *rxq;
5217         uint32_t rxdctl;
5218         int poll_ms;
5219
5220         PMD_INIT_FUNC_TRACE();
5221         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5222
5223         rxq = dev->data->rx_queues[rx_queue_id];
5224
5225         rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx));
5226         rxdctl &= ~IXGBE_RXDCTL_ENABLE;
5227         IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(rxq->reg_idx), rxdctl);
5228
5229         /* Wait until RX Enable bit clear */
5230         poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS;
5231         do {
5232                 rte_delay_ms(1);
5233                 rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx));
5234         } while (--poll_ms && (rxdctl & IXGBE_RXDCTL_ENABLE));
5235         if (!poll_ms)
5236                 PMD_INIT_LOG(ERR, "Could not disable Rx Queue %d", rx_queue_id);
5237
5238         rte_delay_us(RTE_IXGBE_WAIT_100_US);
5239
5240         ixgbe_rx_queue_release_mbufs(rxq);
5241         ixgbe_reset_rx_queue(adapter, rxq);
5242         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
5243
5244         return 0;
5245 }
5246
5247
5248 /*
5249  * Start Transmit Units for specified queue.
5250  */
5251 int __attribute__((cold))
5252 ixgbe_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
5253 {
5254         struct ixgbe_hw     *hw;
5255         struct ixgbe_tx_queue *txq;
5256         uint32_t txdctl;
5257         int poll_ms;
5258
5259         PMD_INIT_FUNC_TRACE();
5260         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5261
5262         txq = dev->data->tx_queues[tx_queue_id];
5263         txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(txq->reg_idx));
5264         txdctl |= IXGBE_TXDCTL_ENABLE;
5265         IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(txq->reg_idx), txdctl);
5266
5267         /* Wait until TX Enable ready */
5268         if (hw->mac.type == ixgbe_mac_82599EB) {
5269                 poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS;
5270                 do {
5271                         rte_delay_ms(1);
5272                         txdctl = IXGBE_READ_REG(hw,
5273                                 IXGBE_TXDCTL(txq->reg_idx));
5274                 } while (--poll_ms && !(txdctl & IXGBE_TXDCTL_ENABLE));
5275                 if (!poll_ms)
5276                         PMD_INIT_LOG(ERR, "Could not enable Tx Queue %d",
5277                                 tx_queue_id);
5278         }
5279         rte_wmb();
5280         IXGBE_WRITE_REG(hw, IXGBE_TDH(txq->reg_idx), 0);
5281         IXGBE_WRITE_REG(hw, IXGBE_TDT(txq->reg_idx), 0);
5282         dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
5283
5284         return 0;
5285 }
5286
5287 /*
5288  * Stop Transmit Units for specified queue.
5289  */
5290 int __attribute__((cold))
5291 ixgbe_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
5292 {
5293         struct ixgbe_hw     *hw;
5294         struct ixgbe_tx_queue *txq;
5295         uint32_t txdctl;
5296         uint32_t txtdh, txtdt;
5297         int poll_ms;
5298
5299         PMD_INIT_FUNC_TRACE();
5300         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5301
5302         txq = dev->data->tx_queues[tx_queue_id];
5303
5304         /* Wait until TX queue is empty */
5305         if (hw->mac.type == ixgbe_mac_82599EB) {
5306                 poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS;
5307                 do {
5308                         rte_delay_us(RTE_IXGBE_WAIT_100_US);
5309                         txtdh = IXGBE_READ_REG(hw,
5310                                                IXGBE_TDH(txq->reg_idx));
5311                         txtdt = IXGBE_READ_REG(hw,
5312                                                IXGBE_TDT(txq->reg_idx));
5313                 } while (--poll_ms && (txtdh != txtdt));
5314                 if (!poll_ms)
5315                         PMD_INIT_LOG(ERR,
5316                                 "Tx Queue %d is not empty when stopping.",
5317                                 tx_queue_id);
5318         }
5319
5320         txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(txq->reg_idx));
5321         txdctl &= ~IXGBE_TXDCTL_ENABLE;
5322         IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(txq->reg_idx), txdctl);
5323
5324         /* Wait until TX Enable bit clear */
5325         if (hw->mac.type == ixgbe_mac_82599EB) {
5326                 poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS;
5327                 do {
5328                         rte_delay_ms(1);
5329                         txdctl = IXGBE_READ_REG(hw,
5330                                                 IXGBE_TXDCTL(txq->reg_idx));
5331                 } while (--poll_ms && (txdctl & IXGBE_TXDCTL_ENABLE));
5332                 if (!poll_ms)
5333                         PMD_INIT_LOG(ERR, "Could not disable Tx Queue %d",
5334                                 tx_queue_id);
5335         }
5336
5337         if (txq->ops != NULL) {
5338                 txq->ops->release_mbufs(txq);
5339                 txq->ops->reset(txq);
5340         }
5341         dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
5342
5343         return 0;
5344 }
5345
5346 void
5347 ixgbe_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
5348         struct rte_eth_rxq_info *qinfo)
5349 {
5350         struct ixgbe_rx_queue *rxq;
5351
5352         rxq = dev->data->rx_queues[queue_id];
5353
5354         qinfo->mp = rxq->mb_pool;
5355         qinfo->scattered_rx = dev->data->scattered_rx;
5356         qinfo->nb_desc = rxq->nb_rx_desc;
5357
5358         qinfo->conf.rx_free_thresh = rxq->rx_free_thresh;
5359         qinfo->conf.rx_drop_en = rxq->drop_en;
5360         qinfo->conf.rx_deferred_start = rxq->rx_deferred_start;
5361         qinfo->conf.offloads = rxq->offloads;
5362 }
5363
5364 void
5365 ixgbe_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
5366         struct rte_eth_txq_info *qinfo)
5367 {
5368         struct ixgbe_tx_queue *txq;
5369
5370         txq = dev->data->tx_queues[queue_id];
5371
5372         qinfo->nb_desc = txq->nb_tx_desc;
5373
5374         qinfo->conf.tx_thresh.pthresh = txq->pthresh;
5375         qinfo->conf.tx_thresh.hthresh = txq->hthresh;
5376         qinfo->conf.tx_thresh.wthresh = txq->wthresh;
5377
5378         qinfo->conf.tx_free_thresh = txq->tx_free_thresh;
5379         qinfo->conf.tx_rs_thresh = txq->tx_rs_thresh;
5380         qinfo->conf.offloads = txq->offloads;
5381         qinfo->conf.tx_deferred_start = txq->tx_deferred_start;
5382 }
5383
5384 /*
5385  * [VF] Initializes Receive Unit.
5386  */
5387 int __attribute__((cold))
5388 ixgbevf_dev_rx_init(struct rte_eth_dev *dev)
5389 {
5390         struct ixgbe_hw     *hw;
5391         struct ixgbe_rx_queue *rxq;
5392         struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
5393         uint64_t bus_addr;
5394         uint32_t srrctl, psrtype = 0;
5395         uint16_t buf_size;
5396         uint16_t i;
5397         int ret;
5398
5399         PMD_INIT_FUNC_TRACE();
5400         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5401
5402         if (rte_is_power_of_2(dev->data->nb_rx_queues) == 0) {
5403                 PMD_INIT_LOG(ERR, "The number of Rx queue invalid, "
5404                         "it should be power of 2");
5405                 return -1;
5406         }
5407
5408         if (dev->data->nb_rx_queues > hw->mac.max_rx_queues) {
5409                 PMD_INIT_LOG(ERR, "The number of Rx queue invalid, "
5410                         "it should be equal to or less than %d",
5411                         hw->mac.max_rx_queues);
5412                 return -1;
5413         }
5414
5415         /*
5416          * When the VF driver issues a IXGBE_VF_RESET request, the PF driver
5417          * disables the VF receipt of packets if the PF MTU is > 1500.
5418          * This is done to deal with 82599 limitations that imposes
5419          * the PF and all VFs to share the same MTU.
5420          * Then, the PF driver enables again the VF receipt of packet when
5421          * the VF driver issues a IXGBE_VF_SET_LPE request.
5422          * In the meantime, the VF device cannot be used, even if the VF driver
5423          * and the Guest VM network stack are ready to accept packets with a
5424          * size up to the PF MTU.
5425          * As a work-around to this PF behaviour, force the call to
5426          * ixgbevf_rlpml_set_vf even if jumbo frames are not used. This way,
5427          * VF packets received can work in all cases.
5428          */
5429         ixgbevf_rlpml_set_vf(hw,
5430                 (uint16_t)dev->data->dev_conf.rxmode.max_rx_pkt_len);
5431
5432         /*
5433          * Assume no header split and no VLAN strip support
5434          * on any Rx queue first .
5435          */
5436         rxmode->offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
5437         /* Setup RX queues */
5438         for (i = 0; i < dev->data->nb_rx_queues; i++) {
5439                 rxq = dev->data->rx_queues[i];
5440
5441                 /* Allocate buffers for descriptor rings */
5442                 ret = ixgbe_alloc_rx_queue_mbufs(rxq);
5443                 if (ret)
5444                         return ret;
5445
5446                 /* Setup the Base and Length of the Rx Descriptor Rings */
5447                 bus_addr = rxq->rx_ring_phys_addr;
5448
5449                 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAL(i),
5450                                 (uint32_t)(bus_addr & 0x00000000ffffffffULL));
5451                 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAH(i),
5452                                 (uint32_t)(bus_addr >> 32));
5453                 IXGBE_WRITE_REG(hw, IXGBE_VFRDLEN(i),
5454                                 rxq->nb_rx_desc * sizeof(union ixgbe_adv_rx_desc));
5455                 IXGBE_WRITE_REG(hw, IXGBE_VFRDH(i), 0);
5456                 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(i), 0);
5457
5458
5459                 /* Configure the SRRCTL register */
5460                 srrctl = IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
5461
5462                 /* Set if packets are dropped when no descriptors available */
5463                 if (rxq->drop_en)
5464                         srrctl |= IXGBE_SRRCTL_DROP_EN;
5465
5466                 /*
5467                  * Configure the RX buffer size in the BSIZEPACKET field of
5468                  * the SRRCTL register of the queue.
5469                  * The value is in 1 KB resolution. Valid values can be from
5470                  * 1 KB to 16 KB.
5471                  */
5472                 buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rxq->mb_pool) -
5473                         RTE_PKTMBUF_HEADROOM);
5474                 srrctl |= ((buf_size >> IXGBE_SRRCTL_BSIZEPKT_SHIFT) &
5475                            IXGBE_SRRCTL_BSIZEPKT_MASK);
5476
5477                 /*
5478                  * VF modification to write virtual function SRRCTL register
5479                  */
5480                 IXGBE_WRITE_REG(hw, IXGBE_VFSRRCTL(i), srrctl);
5481
5482                 buf_size = (uint16_t) ((srrctl & IXGBE_SRRCTL_BSIZEPKT_MASK) <<
5483                                        IXGBE_SRRCTL_BSIZEPKT_SHIFT);
5484
5485                 if (rxmode->offloads & DEV_RX_OFFLOAD_SCATTER ||
5486                     /* It adds dual VLAN length for supporting dual VLAN */
5487                     (rxmode->max_rx_pkt_len +
5488                                 2 * IXGBE_VLAN_TAG_SIZE) > buf_size) {
5489                         if (!dev->data->scattered_rx)
5490                                 PMD_INIT_LOG(DEBUG, "forcing scatter mode");
5491                         dev->data->scattered_rx = 1;
5492                 }
5493
5494                 if (rxq->offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
5495                         rxmode->offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
5496         }
5497
5498         /* Set RQPL for VF RSS according to max Rx queue */
5499         psrtype |= (dev->data->nb_rx_queues >> 1) <<
5500                 IXGBE_PSRTYPE_RQPL_SHIFT;
5501         IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, psrtype);
5502
5503         ixgbe_set_rx_function(dev);
5504
5505         return 0;
5506 }
5507
5508 /*
5509  * [VF] Initializes Transmit Unit.
5510  */
5511 void __attribute__((cold))
5512 ixgbevf_dev_tx_init(struct rte_eth_dev *dev)
5513 {
5514         struct ixgbe_hw     *hw;
5515         struct ixgbe_tx_queue *txq;
5516         uint64_t bus_addr;
5517         uint32_t txctrl;
5518         uint16_t i;
5519
5520         PMD_INIT_FUNC_TRACE();
5521         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5522
5523         /* Setup the Base and Length of the Tx Descriptor Rings */
5524         for (i = 0; i < dev->data->nb_tx_queues; i++) {
5525                 txq = dev->data->tx_queues[i];
5526                 bus_addr = txq->tx_ring_phys_addr;
5527                 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAL(i),
5528                                 (uint32_t)(bus_addr & 0x00000000ffffffffULL));
5529                 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAH(i),
5530                                 (uint32_t)(bus_addr >> 32));
5531                 IXGBE_WRITE_REG(hw, IXGBE_VFTDLEN(i),
5532                                 txq->nb_tx_desc * sizeof(union ixgbe_adv_tx_desc));
5533                 /* Setup the HW Tx Head and TX Tail descriptor pointers */
5534                 IXGBE_WRITE_REG(hw, IXGBE_VFTDH(i), 0);
5535                 IXGBE_WRITE_REG(hw, IXGBE_VFTDT(i), 0);
5536
5537                 /*
5538                  * Disable Tx Head Writeback RO bit, since this hoses
5539                  * bookkeeping if things aren't delivered in order.
5540                  */
5541                 txctrl = IXGBE_READ_REG(hw,
5542                                 IXGBE_VFDCA_TXCTRL(i));
5543                 txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
5544                 IXGBE_WRITE_REG(hw, IXGBE_VFDCA_TXCTRL(i),
5545                                 txctrl);
5546         }
5547 }
5548
5549 /*
5550  * [VF] Start Transmit and Receive Units.
5551  */
5552 void __attribute__((cold))
5553 ixgbevf_dev_rxtx_start(struct rte_eth_dev *dev)
5554 {
5555         struct ixgbe_hw     *hw;
5556         struct ixgbe_tx_queue *txq;
5557         struct ixgbe_rx_queue *rxq;
5558         uint32_t txdctl;
5559         uint32_t rxdctl;
5560         uint16_t i;
5561         int poll_ms;
5562
5563         PMD_INIT_FUNC_TRACE();
5564         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5565
5566         for (i = 0; i < dev->data->nb_tx_queues; i++) {
5567                 txq = dev->data->tx_queues[i];
5568                 /* Setup Transmit Threshold Registers */
5569                 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
5570                 txdctl |= txq->pthresh & 0x7F;
5571                 txdctl |= ((txq->hthresh & 0x7F) << 8);
5572                 txdctl |= ((txq->wthresh & 0x7F) << 16);
5573                 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), txdctl);
5574         }
5575
5576         for (i = 0; i < dev->data->nb_tx_queues; i++) {
5577
5578                 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
5579                 txdctl |= IXGBE_TXDCTL_ENABLE;
5580                 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), txdctl);
5581
5582                 poll_ms = 10;
5583                 /* Wait until TX Enable ready */
5584                 do {
5585                         rte_delay_ms(1);
5586                         txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
5587                 } while (--poll_ms && !(txdctl & IXGBE_TXDCTL_ENABLE));
5588                 if (!poll_ms)
5589                         PMD_INIT_LOG(ERR, "Could not enable Tx Queue %d", i);
5590         }
5591         for (i = 0; i < dev->data->nb_rx_queues; i++) {
5592
5593                 rxq = dev->data->rx_queues[i];
5594
5595                 rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
5596                 rxdctl |= IXGBE_RXDCTL_ENABLE;
5597                 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), rxdctl);
5598
5599                 /* Wait until RX Enable ready */
5600                 poll_ms = 10;
5601                 do {
5602                         rte_delay_ms(1);
5603                         rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
5604                 } while (--poll_ms && !(rxdctl & IXGBE_RXDCTL_ENABLE));
5605                 if (!poll_ms)
5606                         PMD_INIT_LOG(ERR, "Could not enable Rx Queue %d", i);
5607                 rte_wmb();
5608                 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(i), rxq->nb_rx_desc - 1);
5609
5610         }
5611 }
5612
5613 int
5614 ixgbe_rss_conf_init(struct ixgbe_rte_flow_rss_conf *out,
5615                     const struct rte_flow_action_rss *in)
5616 {
5617         if (in->key_len > RTE_DIM(out->key) ||
5618             in->queue_num > RTE_DIM(out->queue))
5619                 return -EINVAL;
5620         out->conf = (struct rte_flow_action_rss){
5621                 .func = in->func,
5622                 .level = in->level,
5623                 .types = in->types,
5624                 .key_len = in->key_len,
5625                 .queue_num = in->queue_num,
5626                 .key = memcpy(out->key, in->key, in->key_len),
5627                 .queue = memcpy(out->queue, in->queue,
5628                                 sizeof(*in->queue) * in->queue_num),
5629         };
5630         return 0;
5631 }
5632
5633 int
5634 ixgbe_action_rss_same(const struct rte_flow_action_rss *comp,
5635                       const struct rte_flow_action_rss *with)
5636 {
5637         return (comp->func == with->func &&
5638                 comp->level == with->level &&
5639                 comp->types == with->types &&
5640                 comp->key_len == with->key_len &&
5641                 comp->queue_num == with->queue_num &&
5642                 !memcmp(comp->key, with->key, with->key_len) &&
5643                 !memcmp(comp->queue, with->queue,
5644                         sizeof(*with->queue) * with->queue_num));
5645 }
5646
5647 int
5648 ixgbe_config_rss_filter(struct rte_eth_dev *dev,
5649                 struct ixgbe_rte_flow_rss_conf *conf, bool add)
5650 {
5651         struct ixgbe_hw *hw;
5652         uint32_t reta;
5653         uint16_t i;
5654         uint16_t j;
5655         uint16_t sp_reta_size;
5656         uint32_t reta_reg;
5657         struct rte_eth_rss_conf rss_conf = {
5658                 .rss_key = conf->conf.key_len ?
5659                         (void *)(uintptr_t)conf->conf.key : NULL,
5660                 .rss_key_len = conf->conf.key_len,
5661                 .rss_hf = conf->conf.types,
5662         };
5663         struct ixgbe_filter_info *filter_info =
5664                 IXGBE_DEV_PRIVATE_TO_FILTER_INFO(dev->data->dev_private);
5665
5666         PMD_INIT_FUNC_TRACE();
5667         hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5668
5669         sp_reta_size = ixgbe_reta_size_get(hw->mac.type);
5670
5671         if (!add) {
5672                 if (ixgbe_action_rss_same(&filter_info->rss_info.conf,
5673                                           &conf->conf)) {
5674                         ixgbe_rss_disable(dev);
5675                         memset(&filter_info->rss_info, 0,
5676                                 sizeof(struct ixgbe_rte_flow_rss_conf));
5677                         return 0;
5678                 }
5679                 return -EINVAL;
5680         }
5681
5682         if (filter_info->rss_info.conf.queue_num)
5683                 return -EINVAL;
5684         /* Fill in redirection table
5685          * The byte-swap is needed because NIC registers are in
5686          * little-endian order.
5687          */
5688         reta = 0;
5689         for (i = 0, j = 0; i < sp_reta_size; i++, j++) {
5690                 reta_reg = ixgbe_reta_reg_get(hw->mac.type, i);
5691
5692                 if (j == conf->conf.queue_num)
5693                         j = 0;
5694                 reta = (reta << 8) | conf->conf.queue[j];
5695                 if ((i & 3) == 3)
5696                         IXGBE_WRITE_REG(hw, reta_reg,
5697                                         rte_bswap32(reta));
5698         }
5699
5700         /* Configure the RSS key and the RSS protocols used to compute
5701          * the RSS hash of input packets.
5702          */
5703         if ((rss_conf.rss_hf & IXGBE_RSS_OFFLOAD_ALL) == 0) {
5704                 ixgbe_rss_disable(dev);
5705                 return -EINVAL;
5706         }
5707         if (rss_conf.rss_key == NULL)
5708                 rss_conf.rss_key = rss_intel_key; /* Default hash key */
5709         ixgbe_hw_rss_hash_set(hw, &rss_conf);
5710
5711         if (ixgbe_rss_conf_init(&filter_info->rss_info, &conf->conf))
5712                 return -EINVAL;
5713
5714         return 0;
5715 }
5716
5717 /* Stubs needed for linkage when CONFIG_RTE_IXGBE_INC_VECTOR is set to 'n' */
5718 int __attribute__((weak))
5719 ixgbe_rx_vec_dev_conf_condition_check(struct rte_eth_dev __rte_unused *dev)
5720 {
5721         return -1;
5722 }
5723
5724 uint16_t __attribute__((weak))
5725 ixgbe_recv_pkts_vec(
5726         void __rte_unused *rx_queue,
5727         struct rte_mbuf __rte_unused **rx_pkts,
5728         uint16_t __rte_unused nb_pkts)
5729 {
5730         return 0;
5731 }
5732
5733 uint16_t __attribute__((weak))
5734 ixgbe_recv_scattered_pkts_vec(
5735         void __rte_unused *rx_queue,
5736         struct rte_mbuf __rte_unused **rx_pkts,
5737         uint16_t __rte_unused nb_pkts)
5738 {
5739         return 0;
5740 }
5741
5742 int __attribute__((weak))
5743 ixgbe_rxq_vec_setup(struct ixgbe_rx_queue __rte_unused *rxq)
5744 {
5745         return -1;
5746 }