drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2015 Intel Corporation
   3  */
   4
   5 #include <stdint.h>
   6 #include <rte_ethdev_driver.h>
   7 #include <rte_malloc.h>
   8
   9 #include "ixgbe_ethdev.h"
  10 #include "ixgbe_rxtx.h"
  11 #include "ixgbe_rxtx_vec_common.h"
  12
  13 #include <tmmintrin.h>
  14
  15 #ifndef __INTEL_COMPILER
  16 #pragma GCC diagnostic ignored "-Wcast-qual"
  17 #endif
  18
  19 static inline void
  20 ixgbe_rxq_rearm(struct ixgbe_rx_queue *rxq)
  21 {
  22         int i;
  23         uint16_t rx_id;
  24         volatile union ixgbe_adv_rx_desc *rxdp;
  25         struct ixgbe_rx_entry *rxep = &rxq->sw_ring[rxq->rxrearm_start];
  26         struct rte_mbuf *mb0, *mb1;
  27         __m128i hdr_room = _mm_set_epi64x(RTE_PKTMBUF_HEADROOM,
  28                         RTE_PKTMBUF_HEADROOM);
  29         __m128i dma_addr0, dma_addr1;
  30
  31         const __m128i hba_msk = _mm_set_epi64x(0, UINT64_MAX);
  32
  33         rxdp = rxq->rx_ring + rxq->rxrearm_start;
  34
  35         /* Pull 'n' more MBUFs into the software ring */
  36         if (rte_mempool_get_bulk(rxq->mb_pool,
  37                                  (void *)rxep,
  38                                  RTE_IXGBE_RXQ_REARM_THRESH) < 0) {
  39                 if (rxq->rxrearm_nb + RTE_IXGBE_RXQ_REARM_THRESH >=
  40                     rxq->nb_rx_desc) {
  41                         dma_addr0 = _mm_setzero_si128();
  42                         for (i = 0; i < RTE_IXGBE_DESCS_PER_LOOP; i++) {
  43                                 rxep[i].mbuf = &rxq->fake_mbuf;
  44                                 _mm_store_si128((__m128i *)&rxdp[i].read,
  45                                                 dma_addr0);
  46                         }
  47                 }
  48                 rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed +=
  49                         RTE_IXGBE_RXQ_REARM_THRESH;
  50                 return;
  51         }
  52
  53         /* Initialize the mbufs in vector, process 2 mbufs in one loop */
  54         for (i = 0; i < RTE_IXGBE_RXQ_REARM_THRESH; i += 2, rxep += 2) {
  55                 __m128i vaddr0, vaddr1;
  56
  57                 mb0 = rxep[0].mbuf;
  58                 mb1 = rxep[1].mbuf;
  59
  60                 /* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
  61                 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) !=
  62                                 offsetof(struct rte_mbuf, buf_addr) + 8);
  63                 vaddr0 = _mm_loadu_si128((__m128i *)&(mb0->buf_addr));
  64                 vaddr1 = _mm_loadu_si128((__m128i *)&(mb1->buf_addr));
  65
  66                 /* convert pa to dma_addr hdr/data */
  67                 dma_addr0 = _mm_unpackhi_epi64(vaddr0, vaddr0);
  68                 dma_addr1 = _mm_unpackhi_epi64(vaddr1, vaddr1);
  69
  70                 /* add headroom to pa values */
  71                 dma_addr0 = _mm_add_epi64(dma_addr0, hdr_room);
  72                 dma_addr1 = _mm_add_epi64(dma_addr1, hdr_room);
  73
  74                 /* set Header Buffer Address to zero */
  75                 dma_addr0 =  _mm_and_si128(dma_addr0, hba_msk);
  76                 dma_addr1 =  _mm_and_si128(dma_addr1, hba_msk);
  77
  78                 /* flush desc with pa dma_addr */
  79                 _mm_store_si128((__m128i *)&rxdp++->read, dma_addr0);
  80                 _mm_store_si128((__m128i *)&rxdp++->read, dma_addr1);
  81         }
  82
  83         rxq->rxrearm_start += RTE_IXGBE_RXQ_REARM_THRESH;
  84         if (rxq->rxrearm_start >= rxq->nb_rx_desc)
  85                 rxq->rxrearm_start = 0;
  86
  87         rxq->rxrearm_nb -= RTE_IXGBE_RXQ_REARM_THRESH;
  88
  89         rx_id = (uint16_t) ((rxq->rxrearm_start == 0) ?
  90                              (rxq->nb_rx_desc - 1) : (rxq->rxrearm_start - 1));
  91
  92         /* Update the tail pointer on the NIC */
  93         IXGBE_PCI_REG_WRITE(rxq->rdt_reg_addr, rx_id);
  94 }
  95
  96 #ifdef RTE_LIBRTE_SECURITY
  97 static inline void
  98 desc_to_olflags_v_ipsec(__m128i descs[4], struct rte_mbuf **rx_pkts)
  99 {
 100         __m128i sterr, rearm, tmp_e, tmp_p;
 101         uint32_t *rearm0 = (uint32_t *)rx_pkts[0]->rearm_data + 2;
 102         uint32_t *rearm1 = (uint32_t *)rx_pkts[1]->rearm_data + 2;
 103         uint32_t *rearm2 = (uint32_t *)rx_pkts[2]->rearm_data + 2;
 104         uint32_t *rearm3 = (uint32_t *)rx_pkts[3]->rearm_data + 2;
 105         const __m128i ipsec_sterr_msk =
 106                         _mm_set1_epi32(IXGBE_RXDADV_IPSEC_STATUS_SECP |
 107                                        IXGBE_RXDADV_IPSEC_ERROR_AUTH_FAILED);
 108         const __m128i ipsec_proc_msk  =
 109                         _mm_set1_epi32(IXGBE_RXDADV_IPSEC_STATUS_SECP);
 110         const __m128i ipsec_err_flag  =
 111                         _mm_set1_epi32(PKT_RX_SEC_OFFLOAD_FAILED |
 112                                        PKT_RX_SEC_OFFLOAD);
 113         const __m128i ipsec_proc_flag = _mm_set1_epi32(PKT_RX_SEC_OFFLOAD);
 114
 115         rearm = _mm_set_epi32(*rearm3, *rearm2, *rearm1, *rearm0);
 116         sterr = _mm_set_epi32(_mm_extract_epi32(descs[3], 2),
 117                               _mm_extract_epi32(descs[2], 2),
 118                               _mm_extract_epi32(descs[1], 2),
 119                               _mm_extract_epi32(descs[0], 2));
 120         sterr = _mm_and_si128(sterr, ipsec_sterr_msk);
 121         tmp_e = _mm_cmpeq_epi32(sterr, ipsec_sterr_msk);
 122         tmp_p = _mm_cmpeq_epi32(sterr, ipsec_proc_msk);
 123         sterr = _mm_or_si128(_mm_and_si128(tmp_e, ipsec_err_flag),
 124                                 _mm_and_si128(tmp_p, ipsec_proc_flag));
 125         rearm = _mm_or_si128(rearm, sterr);
 126         *rearm0 = _mm_extract_epi32(rearm, 0);
 127         *rearm1 = _mm_extract_epi32(rearm, 1);
 128         *rearm2 = _mm_extract_epi32(rearm, 2);
 129         *rearm3 = _mm_extract_epi32(rearm, 3);
 130 }
 131 #endif
 132
 133 static inline void
 134 desc_to_olflags_v(__m128i descs[4], __m128i mbuf_init, uint8_t vlan_flags,
 135         struct rte_mbuf **rx_pkts)
 136 {
 137         __m128i ptype0, ptype1, vtag0, vtag1, csum;
 138         __m128i rearm0, rearm1, rearm2, rearm3;
 139
 140         /* mask everything except rss type */
 141         const __m128i rsstype_msk = _mm_set_epi16(
 142                         0x0000, 0x0000, 0x0000, 0x0000,
 143                         0x000F, 0x000F, 0x000F, 0x000F);
 144
 145         /* mask the lower byte of ol_flags */
 146         const __m128i ol_flags_msk = _mm_set_epi16(
 147                         0x0000, 0x0000, 0x0000, 0x0000,
 148                         0x00FF, 0x00FF, 0x00FF, 0x00FF);
 149
 150         /* map rss type to rss hash flag */
 151         const __m128i rss_flags = _mm_set_epi8(PKT_RX_FDIR, 0, 0, 0,
 152                         0, 0, 0, PKT_RX_RSS_HASH,
 153                         PKT_RX_RSS_HASH, 0, PKT_RX_RSS_HASH, 0,
 154                         PKT_RX_RSS_HASH, PKT_RX_RSS_HASH, PKT_RX_RSS_HASH, 0);
 155
 156         /* mask everything except vlan present and l4/ip csum error */
 157         const __m128i vlan_csum_msk = _mm_set_epi16(
 158                 (IXGBE_RXDADV_ERR_TCPE | IXGBE_RXDADV_ERR_IPE) >> 16,
 159                 (IXGBE_RXDADV_ERR_TCPE | IXGBE_RXDADV_ERR_IPE) >> 16,
 160                 (IXGBE_RXDADV_ERR_TCPE | IXGBE_RXDADV_ERR_IPE) >> 16,
 161                 (IXGBE_RXDADV_ERR_TCPE | IXGBE_RXDADV_ERR_IPE) >> 16,
 162                 IXGBE_RXD_STAT_VP, IXGBE_RXD_STAT_VP,
 163                 IXGBE_RXD_STAT_VP, IXGBE_RXD_STAT_VP);
 164         /* map vlan present (0x8), IPE (0x2), L4E (0x1) to ol_flags */
 165         const __m128i vlan_csum_map_lo = _mm_set_epi8(
 166                 0, 0, 0, 0,
 167                 vlan_flags | PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD,
 168                 vlan_flags | PKT_RX_IP_CKSUM_BAD,
 169                 vlan_flags | PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD,
 170                 vlan_flags | PKT_RX_IP_CKSUM_GOOD,
 171                 0, 0, 0, 0,
 172                 PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD,
 173                 PKT_RX_IP_CKSUM_BAD,
 174                 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD,
 175                 PKT_RX_IP_CKSUM_GOOD);
 176
 177         const __m128i vlan_csum_map_hi = _mm_set_epi8(
 178                 0, 0, 0, 0,
 179                 0, PKT_RX_L4_CKSUM_GOOD >> sizeof(uint8_t), 0,
 180                 PKT_RX_L4_CKSUM_GOOD >> sizeof(uint8_t),
 181                 0, 0, 0, 0,
 182                 0, PKT_RX_L4_CKSUM_GOOD >> sizeof(uint8_t), 0,
 183                 PKT_RX_L4_CKSUM_GOOD >> sizeof(uint8_t));
 184
 185         ptype0 = _mm_unpacklo_epi16(descs[0], descs[1]);
 186         ptype1 = _mm_unpacklo_epi16(descs[2], descs[3]);
 187         vtag0 = _mm_unpackhi_epi16(descs[0], descs[1]);
 188         vtag1 = _mm_unpackhi_epi16(descs[2], descs[3]);
 189
 190         ptype0 = _mm_unpacklo_epi32(ptype0, ptype1);
 191         ptype0 = _mm_and_si128(ptype0, rsstype_msk);
 192         ptype0 = _mm_shuffle_epi8(rss_flags, ptype0);
 193
 194         vtag1 = _mm_unpacklo_epi32(vtag0, vtag1);
 195         vtag1 = _mm_and_si128(vtag1, vlan_csum_msk);
 196
 197         /* csum bits are in the most significant, to use shuffle we need to
 198          * shift them. Change mask to 0xc000 to 0x0003.
 199          */
 200         csum = _mm_srli_epi16(vtag1, 14);
 201
 202         /* now or the most significant 64 bits containing the checksum
 203          * flags with the vlan present flags.
 204          */
 205         csum = _mm_srli_si128(csum, 8);
 206         vtag1 = _mm_or_si128(csum, vtag1);
 207
 208         /* convert VP, IPE, L4E to ol_flags */
 209         vtag0 = _mm_shuffle_epi8(vlan_csum_map_hi, vtag1);
 210         vtag0 = _mm_slli_epi16(vtag0, sizeof(uint8_t));
 211
 212         vtag1 = _mm_shuffle_epi8(vlan_csum_map_lo, vtag1);
 213         vtag1 = _mm_and_si128(vtag1, ol_flags_msk);
 214         vtag1 = _mm_or_si128(vtag0, vtag1);
 215
 216         vtag1 = _mm_or_si128(ptype0, vtag1);
 217
 218         /*
 219          * At this point, we have the 4 sets of flags in the low 64-bits
 220          * of vtag1 (4x16).
 221          * We want to extract these, and merge them with the mbuf init data
 222          * so we can do a single 16-byte write to the mbuf to set the flags
 223          * and all the other initialization fields. Extracting the
 224          * appropriate flags means that we have to do a shift and blend for
 225          * each mbuf before we do the write.
 226          */
 227         rearm0 = _mm_blend_epi16(mbuf_init, _mm_slli_si128(vtag1, 8), 0x10);
 228         rearm1 = _mm_blend_epi16(mbuf_init, _mm_slli_si128(vtag1, 6), 0x10);
 229         rearm2 = _mm_blend_epi16(mbuf_init, _mm_slli_si128(vtag1, 4), 0x10);
 230         rearm3 = _mm_blend_epi16(mbuf_init, _mm_slli_si128(vtag1, 2), 0x10);
 231
 232         /* write the rearm data and the olflags in one write */
 233         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, ol_flags) !=
 234                         offsetof(struct rte_mbuf, rearm_data) + 8);
 235         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, rearm_data) !=
 236                         RTE_ALIGN(offsetof(struct rte_mbuf, rearm_data), 16));
 237         _mm_store_si128((__m128i *)&rx_pkts[0]->rearm_data, rearm0);
 238         _mm_store_si128((__m128i *)&rx_pkts[1]->rearm_data, rearm1);
 239         _mm_store_si128((__m128i *)&rx_pkts[2]->rearm_data, rearm2);
 240         _mm_store_si128((__m128i *)&rx_pkts[3]->rearm_data, rearm3);
 241 }
 242
 243 static inline uint32_t get_packet_type(int index,
 244                                        uint32_t pkt_info,
 245                                        uint32_t etqf_check,
 246                                        uint32_t tunnel_check)
 247 {
 248         if (etqf_check & (0x02 << (index * RTE_IXGBE_DESCS_PER_LOOP)))
 249                 return RTE_PTYPE_UNKNOWN;
 250
 251         if (tunnel_check & (0x02 << (index * RTE_IXGBE_DESCS_PER_LOOP))) {
 252                 pkt_info &= IXGBE_PACKET_TYPE_MASK_TUNNEL;
 253                 return ptype_table_tn[pkt_info];
 254         }
 255
 256         pkt_info &= IXGBE_PACKET_TYPE_MASK_82599;
 257         return ptype_table[pkt_info];
 258 }
 259
 260 static inline void
 261 desc_to_ptype_v(__m128i descs[4], uint16_t pkt_type_mask,
 262                 struct rte_mbuf **rx_pkts)
 263 {
 264         __m128i etqf_mask = _mm_set_epi64x(0x800000008000LL, 0x800000008000LL);
 265         __m128i ptype_mask = _mm_set_epi32(
 266                 pkt_type_mask, pkt_type_mask, pkt_type_mask, pkt_type_mask);
 267         __m128i tunnel_mask =
 268                 _mm_set_epi64x(0x100000001000LL, 0x100000001000LL);
 269
 270         uint32_t etqf_check, tunnel_check, pkt_info;
 271
 272         __m128i ptype0 = _mm_unpacklo_epi32(descs[0], descs[2]);
 273         __m128i ptype1 = _mm_unpacklo_epi32(descs[1], descs[3]);
 274
 275         /* interleave low 32 bits,
 276          * now we have 4 ptypes in a XMM register
 277          */
 278         ptype0 = _mm_unpacklo_epi32(ptype0, ptype1);
 279
 280         /* create a etqf bitmask based on the etqf bit. */
 281         etqf_check = _mm_movemask_epi8(_mm_and_si128(ptype0, etqf_mask));
 282
 283         /* shift left by IXGBE_PACKET_TYPE_SHIFT, and apply ptype mask */
 284         ptype0 = _mm_and_si128(_mm_srli_epi32(ptype0, IXGBE_PACKET_TYPE_SHIFT),
 285                                ptype_mask);
 286
 287         /* create a tunnel bitmask based on the tunnel bit */
 288         tunnel_check = _mm_movemask_epi8(
 289                 _mm_slli_epi32(_mm_and_si128(ptype0, tunnel_mask), 0x3));
 290
 291         pkt_info = _mm_extract_epi32(ptype0, 0);
 292         rx_pkts[0]->packet_type =
 293                 get_packet_type(0, pkt_info, etqf_check, tunnel_check);
 294         pkt_info = _mm_extract_epi32(ptype0, 1);
 295         rx_pkts[1]->packet_type =
 296                 get_packet_type(1, pkt_info, etqf_check, tunnel_check);
 297         pkt_info = _mm_extract_epi32(ptype0, 2);
 298         rx_pkts[2]->packet_type =
 299                 get_packet_type(2, pkt_info, etqf_check, tunnel_check);
 300         pkt_info = _mm_extract_epi32(ptype0, 3);
 301         rx_pkts[3]->packet_type =
 302                 get_packet_type(3, pkt_info, etqf_check, tunnel_check);
 303 }
 304
 305 /*
 306  * vPMD raw receive routine, only accept(nb_pkts >= RTE_IXGBE_DESCS_PER_LOOP)
 307  *
 308  * Notice:
 309  * - nb_pkts < RTE_IXGBE_DESCS_PER_LOOP, just return no packet
 310  * - nb_pkts > RTE_IXGBE_MAX_RX_BURST, only scan RTE_IXGBE_MAX_RX_BURST
 311  *   numbers of DD bit
 312  * - floor align nb_pkts to a RTE_IXGBE_DESC_PER_LOOP power-of-two
 313  */
 314 static inline uint16_t
 315 _recv_raw_pkts_vec(struct ixgbe_rx_queue *rxq, struct rte_mbuf **rx_pkts,
 316                 uint16_t nb_pkts, uint8_t *split_packet)
 317 {
 318         volatile union ixgbe_adv_rx_desc *rxdp;
 319         struct ixgbe_rx_entry *sw_ring;
 320         uint16_t nb_pkts_recd;
 321 #ifdef RTE_LIBRTE_SECURITY
 322         uint8_t use_ipsec = rxq->using_ipsec;
 323 #endif
 324         int pos;
 325         uint64_t var;
 326         __m128i shuf_msk;
 327         __m128i crc_adjust = _mm_set_epi16(
 328                                 0, 0, 0,    /* ignore non-length fields */
 329                                 -rxq->crc_len, /* sub crc on data_len */
 330                                 0,          /* ignore high-16bits of pkt_len */
 331                                 -rxq->crc_len, /* sub crc on pkt_len */
 332                                 0, 0            /* ignore pkt_type field */
 333                         );
 334         /*
 335          * compile-time check the above crc_adjust layout is correct.
 336          * NOTE: the first field (lowest address) is given last in set_epi16
 337          * call above.
 338          */
 339         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, pkt_len) !=
 340                         offsetof(struct rte_mbuf, rx_descriptor_fields1) + 4);
 341         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, data_len) !=
 342                         offsetof(struct rte_mbuf, rx_descriptor_fields1) + 8);
 343         __m128i dd_check, eop_check;
 344         __m128i mbuf_init;
 345         uint8_t vlan_flags;
 346
 347         /* nb_pkts shall be less equal than RTE_IXGBE_MAX_RX_BURST */
 348         nb_pkts = RTE_MIN(nb_pkts, RTE_IXGBE_MAX_RX_BURST);
 349
 350         /* nb_pkts has to be floor-aligned to RTE_IXGBE_DESCS_PER_LOOP */
 351         nb_pkts = RTE_ALIGN_FLOOR(nb_pkts, RTE_IXGBE_DESCS_PER_LOOP);
 352
 353         /* Just the act of getting into the function from the application is
 354          * going to cost about 7 cycles
 355          */
 356         rxdp = rxq->rx_ring + rxq->rx_tail;
 357
 358         rte_prefetch0(rxdp);
 359
 360         /* See if we need to rearm the RX queue - gives the prefetch a bit
 361          * of time to act
 362          */
 363         if (rxq->rxrearm_nb > RTE_IXGBE_RXQ_REARM_THRESH)
 364                 ixgbe_rxq_rearm(rxq);
 365
 366         /* Before we start moving massive data around, check to see if
 367          * there is actually a packet available
 368          */
 369         if (!(rxdp->wb.upper.status_error &
 370                                 rte_cpu_to_le_32(IXGBE_RXDADV_STAT_DD)))
 371                 return 0;
 372
 373         /* 4 packets DD mask */
 374         dd_check = _mm_set_epi64x(0x0000000100000001LL, 0x0000000100000001LL);
 375
 376         /* 4 packets EOP mask */
 377         eop_check = _mm_set_epi64x(0x0000000200000002LL, 0x0000000200000002LL);
 378
 379         /* mask to shuffle from desc. to mbuf */
 380         shuf_msk = _mm_set_epi8(
 381                 7, 6, 5, 4,  /* octet 4~7, 32bits rss */
 382                 15, 14,      /* octet 14~15, low 16 bits vlan_macip */
 383                 13, 12,      /* octet 12~13, 16 bits data_len */
 384                 0xFF, 0xFF,  /* skip high 16 bits pkt_len, zero out */
 385                 13, 12,      /* octet 12~13, low 16 bits pkt_len */
 386                 0xFF, 0xFF,  /* skip 32 bit pkt_type */
 387                 0xFF, 0xFF
 388                 );
 389         /*
 390          * Compile-time verify the shuffle mask
 391          * NOTE: some field positions already verified above, but duplicated
 392          * here for completeness in case of future modifications.
 393          */
 394         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, pkt_len) !=
 395                         offsetof(struct rte_mbuf, rx_descriptor_fields1) + 4);
 396         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, data_len) !=
 397                         offsetof(struct rte_mbuf, rx_descriptor_fields1) + 8);
 398         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, vlan_tci) !=
 399                         offsetof(struct rte_mbuf, rx_descriptor_fields1) + 10);
 400         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, hash) !=
 401                         offsetof(struct rte_mbuf, rx_descriptor_fields1) + 12);
 402
 403         mbuf_init = _mm_set_epi64x(0, rxq->mbuf_initializer);
 404
 405         /* Cache is empty -> need to scan the buffer rings, but first move
 406          * the next 'n' mbufs into the cache
 407          */
 408         sw_ring = &rxq->sw_ring[rxq->rx_tail];
 409
 410         /* ensure these 2 flags are in the lower 8 bits */
 411         RTE_BUILD_BUG_ON((PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED) > UINT8_MAX);
 412         vlan_flags = rxq->vlan_flags & UINT8_MAX;
 413
 414         /* A. load 4 packet in one loop
 415          * [A*. mask out 4 unused dirty field in desc]
 416          * B. copy 4 mbuf point from swring to rx_pkts
 417          * C. calc the number of DD bits among the 4 packets
 418          * [C*. extract the end-of-packet bit, if requested]
 419          * D. fill info. from desc to mbuf
 420          */
 421         for (pos = 0, nb_pkts_recd = 0; pos < nb_pkts;
 422                         pos += RTE_IXGBE_DESCS_PER_LOOP,
 423                         rxdp += RTE_IXGBE_DESCS_PER_LOOP) {
 424                 __m128i descs[RTE_IXGBE_DESCS_PER_LOOP];
 425                 __m128i pkt_mb1, pkt_mb2, pkt_mb3, pkt_mb4;
 426                 __m128i zero, staterr, sterr_tmp1, sterr_tmp2;
 427                 /* 2 64 bit or 4 32 bit mbuf pointers in one XMM reg. */
 428                 __m128i mbp1;
 429 #if defined(RTE_ARCH_X86_64)
 430                 __m128i mbp2;
 431 #endif
 432
 433                 /* B.1 load 2 (64 bit) or 4 (32 bit) mbuf points */
 434                 mbp1 = _mm_loadu_si128((__m128i *)&sw_ring[pos]);
 435
 436                 /* Read desc statuses backwards to avoid race condition */
 437                 /* A.1 load 4 pkts desc */
 438                 descs[3] = _mm_loadu_si128((__m128i *)(rxdp + 3));
 439                 rte_compiler_barrier();
 440
 441                 /* B.2 copy 2 64 bit or 4 32 bit mbuf point into rx_pkts */
 442                 _mm_storeu_si128((__m128i *)&rx_pkts[pos], mbp1);
 443
 444 #if defined(RTE_ARCH_X86_64)
 445                 /* B.1 load 2 64 bit mbuf points */
 446                 mbp2 = _mm_loadu_si128((__m128i *)&sw_ring[pos+2]);
 447 #endif
 448
 449                 descs[2] = _mm_loadu_si128((__m128i *)(rxdp + 2));
 450                 rte_compiler_barrier();
 451                 /* B.1 load 2 mbuf point */
 452                 descs[1] = _mm_loadu_si128((__m128i *)(rxdp + 1));
 453                 rte_compiler_barrier();
 454                 descs[0] = _mm_loadu_si128((__m128i *)(rxdp));
 455
 456 #if defined(RTE_ARCH_X86_64)
 457                 /* B.2 copy 2 mbuf point into rx_pkts  */
 458                 _mm_storeu_si128((__m128i *)&rx_pkts[pos+2], mbp2);
 459 #endif
 460
 461                 if (split_packet) {
 462                         rte_mbuf_prefetch_part2(rx_pkts[pos]);
 463                         rte_mbuf_prefetch_part2(rx_pkts[pos + 1]);
 464                         rte_mbuf_prefetch_part2(rx_pkts[pos + 2]);
 465                         rte_mbuf_prefetch_part2(rx_pkts[pos + 3]);
 466                 }
 467
 468                 /* avoid compiler reorder optimization */
 469                 rte_compiler_barrier();
 470
 471                 /* D.1 pkt 3,4 convert format from desc to pktmbuf */
 472                 pkt_mb4 = _mm_shuffle_epi8(descs[3], shuf_msk);
 473                 pkt_mb3 = _mm_shuffle_epi8(descs[2], shuf_msk);
 474
 475                 /* D.1 pkt 1,2 convert format from desc to pktmbuf */
 476                 pkt_mb2 = _mm_shuffle_epi8(descs[1], shuf_msk);
 477                 pkt_mb1 = _mm_shuffle_epi8(descs[0], shuf_msk);
 478
 479                 /* C.1 4=>2 filter staterr info only */
 480                 sterr_tmp2 = _mm_unpackhi_epi32(descs[3], descs[2]);
 481                 /* C.1 4=>2 filter staterr info only */
 482                 sterr_tmp1 = _mm_unpackhi_epi32(descs[1], descs[0]);
 483
 484                 /* set ol_flags with vlan packet type */
 485                 desc_to_olflags_v(descs, mbuf_init, vlan_flags, &rx_pkts[pos]);
 486
 487 #ifdef RTE_LIBRTE_SECURITY
 488                 if (unlikely(use_ipsec))
 489                         desc_to_olflags_v_ipsec(descs, &rx_pkts[pos]);
 490 #endif
 491
 492                 /* D.2 pkt 3,4 set in_port/nb_seg and remove crc */
 493                 pkt_mb4 = _mm_add_epi16(pkt_mb4, crc_adjust);
 494                 pkt_mb3 = _mm_add_epi16(pkt_mb3, crc_adjust);
 495
 496                 /* C.2 get 4 pkts staterr value  */
 497                 zero = _mm_xor_si128(dd_check, dd_check);
 498                 staterr = _mm_unpacklo_epi32(sterr_tmp1, sterr_tmp2);
 499
 500                 /* D.3 copy final 3,4 data to rx_pkts */
 501                 _mm_storeu_si128((void *)&rx_pkts[pos+3]->rx_descriptor_fields1,
 502                                 pkt_mb4);
 503                 _mm_storeu_si128((void *)&rx_pkts[pos+2]->rx_descriptor_fields1,
 504                                 pkt_mb3);
 505
 506                 /* D.2 pkt 1,2 set in_port/nb_seg and remove crc */
 507                 pkt_mb2 = _mm_add_epi16(pkt_mb2, crc_adjust);
 508                 pkt_mb1 = _mm_add_epi16(pkt_mb1, crc_adjust);
 509
 510                 /* C* extract and record EOP bit */
 511                 if (split_packet) {
 512                         __m128i eop_shuf_mask = _mm_set_epi8(
 513                                         0xFF, 0xFF, 0xFF, 0xFF,
 514                                         0xFF, 0xFF, 0xFF, 0xFF,
 515                                         0xFF, 0xFF, 0xFF, 0xFF,
 516                                         0x04, 0x0C, 0x00, 0x08
 517                                         );
 518
 519                         /* and with mask to extract bits, flipping 1-0 */
 520                         __m128i eop_bits = _mm_andnot_si128(staterr, eop_check);
 521                         /* the staterr values are not in order, as the count
 522                          * count of dd bits doesn't care. However, for end of
 523                          * packet tracking, we do care, so shuffle. This also
 524                          * compresses the 32-bit values to 8-bit
 525                          */
 526                         eop_bits = _mm_shuffle_epi8(eop_bits, eop_shuf_mask);
 527                         /* store the resulting 32-bit value */
 528                         *(int *)split_packet = _mm_cvtsi128_si32(eop_bits);
 529                         split_packet += RTE_IXGBE_DESCS_PER_LOOP;
 530                 }
 531
 532                 /* C.3 calc available number of desc */
 533                 staterr = _mm_and_si128(staterr, dd_check);
 534                 staterr = _mm_packs_epi32(staterr, zero);
 535
 536                 /* D.3 copy final 1,2 data to rx_pkts */
 537                 _mm_storeu_si128((void *)&rx_pkts[pos+1]->rx_descriptor_fields1,
 538                                 pkt_mb2);
 539                 _mm_storeu_si128((void *)&rx_pkts[pos]->rx_descriptor_fields1,
 540                                 pkt_mb1);
 541
 542                 desc_to_ptype_v(descs, rxq->pkt_type_mask, &rx_pkts[pos]);
 543
 544                 /* C.4 calc avaialbe number of desc */
 545                 var = __builtin_popcountll(_mm_cvtsi128_si64(staterr));
 546                 nb_pkts_recd += var;
 547                 if (likely(var != RTE_IXGBE_DESCS_PER_LOOP))
 548                         break;
 549         }
 550
 551         /* Update our internal tail pointer */
 552         rxq->rx_tail = (uint16_t)(rxq->rx_tail + nb_pkts_recd);
 553         rxq->rx_tail = (uint16_t)(rxq->rx_tail & (rxq->nb_rx_desc - 1));
 554         rxq->rxrearm_nb = (uint16_t)(rxq->rxrearm_nb + nb_pkts_recd);
 555
 556         return nb_pkts_recd;
 557 }
 558
 559 /*
 560  * vPMD receive routine, only accept(nb_pkts >= RTE_IXGBE_DESCS_PER_LOOP)
 561  *
 562  * Notice:
 563  * - nb_pkts < RTE_IXGBE_DESCS_PER_LOOP, just return no packet
 564  * - nb_pkts > RTE_IXGBE_MAX_RX_BURST, only scan RTE_IXGBE_MAX_RX_BURST
 565  *   numbers of DD bit
 566  * - floor align nb_pkts to a RTE_IXGBE_DESC_PER_LOOP power-of-two
 567  */
 568 uint16_t
 569 ixgbe_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
 570                 uint16_t nb_pkts)
 571 {
 572         return _recv_raw_pkts_vec(rx_queue, rx_pkts, nb_pkts, NULL);
 573 }
 574
 575 /*
 576  * vPMD receive routine that reassembles scattered packets
 577  *
 578  * Notice:
 579  * - nb_pkts < RTE_IXGBE_DESCS_PER_LOOP, just return no packet
 580  * - nb_pkts > RTE_IXGBE_MAX_RX_BURST, only scan RTE_IXGBE_MAX_RX_BURST
 581  *   numbers of DD bit
 582  * - floor align nb_pkts to a RTE_IXGBE_DESC_PER_LOOP power-of-two
 583  */
 584 uint16_t
 585 ixgbe_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
 586                 uint16_t nb_pkts)
 587 {
 588         struct ixgbe_rx_queue *rxq = rx_queue;
 589         uint8_t split_flags[RTE_IXGBE_MAX_RX_BURST] = {0};
 590
 591         /* get some new buffers */
 592         uint16_t nb_bufs = _recv_raw_pkts_vec(rxq, rx_pkts, nb_pkts,
 593                         split_flags);
 594         if (nb_bufs == 0)
 595                 return 0;
 596
 597         /* happy day case, full burst + no packets to be joined */
 598         const uint64_t *split_fl64 = (uint64_t *)split_flags;
 599         if (rxq->pkt_first_seg == NULL &&
 600                         split_fl64[0] == 0 && split_fl64[1] == 0 &&
 601                         split_fl64[2] == 0 && split_fl64[3] == 0)
 602                 return nb_bufs;
 603
 604         /* reassemble any packets that need reassembly*/
 605         unsigned i = 0;
 606         if (rxq->pkt_first_seg == NULL) {
 607                 /* find the first split flag, and only reassemble then*/
 608                 while (i < nb_bufs && !split_flags[i])
 609                         i++;
 610                 if (i == nb_bufs)
 611                         return nb_bufs;
 612         }
 613         return i + reassemble_packets(rxq, &rx_pkts[i], nb_bufs - i,
 614                 &split_flags[i]);
 615 }
 616
 617 static inline void
 618 vtx1(volatile union ixgbe_adv_tx_desc *txdp,
 619                 struct rte_mbuf *pkt, uint64_t flags)
 620 {
 621         __m128i descriptor = _mm_set_epi64x((uint64_t)pkt->pkt_len << 46 |
 622                         flags | pkt->data_len,
 623                         pkt->buf_iova + pkt->data_off);
 624         _mm_store_si128((__m128i *)&txdp->read, descriptor);
 625 }
 626
 627 static inline void
 628 vtx(volatile union ixgbe_adv_tx_desc *txdp,
 629                 struct rte_mbuf **pkt, uint16_t nb_pkts,  uint64_t flags)
 630 {
 631         int i;
 632
 633         for (i = 0; i < nb_pkts; ++i, ++txdp, ++pkt)
 634                 vtx1(txdp, *pkt, flags);
 635 }
 636
 637 uint16_t
 638 ixgbe_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
 639                            uint16_t nb_pkts)
 640 {
 641         struct ixgbe_tx_queue *txq = (struct ixgbe_tx_queue *)tx_queue;
 642         volatile union ixgbe_adv_tx_desc *txdp;
 643         struct ixgbe_tx_entry_v *txep;
 644         uint16_t n, nb_commit, tx_id;
 645         uint64_t flags = DCMD_DTYP_FLAGS;
 646         uint64_t rs = IXGBE_ADVTXD_DCMD_RS|DCMD_DTYP_FLAGS;
 647         int i;
 648
 649         /* cross rx_thresh boundary is not allowed */
 650         nb_pkts = RTE_MIN(nb_pkts, txq->tx_rs_thresh);
 651
 652         if (txq->nb_tx_free < txq->tx_free_thresh)
 653                 ixgbe_tx_free_bufs(txq);
 654
 655         nb_commit = nb_pkts = (uint16_t)RTE_MIN(txq->nb_tx_free, nb_pkts);
 656         if (unlikely(nb_pkts == 0))
 657                 return 0;
 658
 659         tx_id = txq->tx_tail;
 660         txdp = &txq->tx_ring[tx_id];
 661         txep = &txq->sw_ring_v[tx_id];
 662
 663         txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_pkts);
 664
 665         n = (uint16_t)(txq->nb_tx_desc - tx_id);
 666         if (nb_commit >= n) {
 667
 668                 tx_backlog_entry(txep, tx_pkts, n);
 669
 670                 for (i = 0; i < n - 1; ++i, ++tx_pkts, ++txdp)
 671                         vtx1(txdp, *tx_pkts, flags);
 672
 673                 vtx1(txdp, *tx_pkts++, rs);
 674
 675                 nb_commit = (uint16_t)(nb_commit - n);
 676
 677                 tx_id = 0;
 678                 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
 679
 680                 /* avoid reach the end of ring */
 681                 txdp = &(txq->tx_ring[tx_id]);
 682                 txep = &txq->sw_ring_v[tx_id];
 683         }
 684
 685         tx_backlog_entry(txep, tx_pkts, nb_commit);
 686
 687         vtx(txdp, tx_pkts, nb_commit, flags);
 688
 689         tx_id = (uint16_t)(tx_id + nb_commit);
 690         if (tx_id > txq->tx_next_rs) {
 691                 txq->tx_ring[txq->tx_next_rs].read.cmd_type_len |=
 692                         rte_cpu_to_le_32(IXGBE_ADVTXD_DCMD_RS);
 693                 txq->tx_next_rs = (uint16_t)(txq->tx_next_rs +
 694                         txq->tx_rs_thresh);
 695         }
 696
 697         txq->tx_tail = tx_id;
 698
 699         IXGBE_PCI_REG_WRITE(txq->tdt_reg_addr, txq->tx_tail);
 700
 701         return nb_pkts;
 702 }
 703
 704 static void __attribute__((cold))
 705 ixgbe_tx_queue_release_mbufs_vec(struct ixgbe_tx_queue *txq)
 706 {
 707         _ixgbe_tx_queue_release_mbufs_vec(txq);
 708 }
 709
 710 void __attribute__((cold))
 711 ixgbe_rx_queue_release_mbufs_vec(struct ixgbe_rx_queue *rxq)
 712 {
 713         _ixgbe_rx_queue_release_mbufs_vec(rxq);
 714 }
 715
 716 static void __attribute__((cold))
 717 ixgbe_tx_free_swring(struct ixgbe_tx_queue *txq)
 718 {
 719         _ixgbe_tx_free_swring_vec(txq);
 720 }
 721
 722 static void __attribute__((cold))
 723 ixgbe_reset_tx_queue(struct ixgbe_tx_queue *txq)
 724 {
 725         _ixgbe_reset_tx_queue_vec(txq);
 726 }
 727
 728 static const struct ixgbe_txq_ops vec_txq_ops = {
 729         .release_mbufs = ixgbe_tx_queue_release_mbufs_vec,
 730         .free_swring = ixgbe_tx_free_swring,
 731         .reset = ixgbe_reset_tx_queue,
 732 };
 733
 734 int __attribute__((cold))
 735 ixgbe_rxq_vec_setup(struct ixgbe_rx_queue *rxq)
 736 {
 737         return ixgbe_rxq_vec_setup_default(rxq);
 738 }
 739
 740 int __attribute__((cold))
 741 ixgbe_txq_vec_setup(struct ixgbe_tx_queue *txq)
 742 {
 743         return ixgbe_txq_vec_setup_default(txq, &vec_txq_ops);
 744 }
 745
 746 int __attribute__((cold))
 747 ixgbe_rx_vec_dev_conf_condition_check(struct rte_eth_dev *dev)
 748 {
 749         return ixgbe_rx_vec_dev_conf_condition_check_default(dev);
 750 }