drivers/net/ice/ice_rxtx_vec_sse.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019 Intel Corporation
   3  */
   4
   5 #include "ice_rxtx_vec_common.h"
   6
   7 #include <tmmintrin.h>
   8
   9 #ifndef __INTEL_COMPILER
  10 #pragma GCC diagnostic ignored "-Wcast-qual"
  11 #endif
  12
  13 static inline void
  14 ice_rxq_rearm(struct ice_rx_queue *rxq)
  15 {
  16         int i;
  17         uint16_t rx_id;
  18         volatile union ice_rx_flex_desc *rxdp;
  19         struct ice_rx_entry *rxep = &rxq->sw_ring[rxq->rxrearm_start];
  20         struct rte_mbuf *mb0, *mb1;
  21         __m128i hdr_room = _mm_set_epi64x(RTE_PKTMBUF_HEADROOM,
  22                                           RTE_PKTMBUF_HEADROOM);
  23         __m128i dma_addr0, dma_addr1;
  24
  25         rxdp = rxq->rx_ring + rxq->rxrearm_start;
  26
  27         /* Pull 'n' more MBUFs into the software ring */
  28         if (rte_mempool_get_bulk(rxq->mp,
  29                                  (void *)rxep,
  30                                  ICE_RXQ_REARM_THRESH) < 0) {
  31                 if (rxq->rxrearm_nb + ICE_RXQ_REARM_THRESH >=
  32                     rxq->nb_rx_desc) {
  33                         dma_addr0 = _mm_setzero_si128();
  34                         for (i = 0; i < ICE_DESCS_PER_LOOP; i++) {
  35                                 rxep[i].mbuf = &rxq->fake_mbuf;
  36                                 _mm_store_si128((__m128i *)&rxdp[i].read,
  37                                                 dma_addr0);
  38                         }
  39                 }
  40                 rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed +=
  41                         ICE_RXQ_REARM_THRESH;
  42                 return;
  43         }
  44
  45         /* Initialize the mbufs in vector, process 2 mbufs in one loop */
  46         for (i = 0; i < ICE_RXQ_REARM_THRESH; i += 2, rxep += 2) {
  47                 __m128i vaddr0, vaddr1;
  48
  49                 mb0 = rxep[0].mbuf;
  50                 mb1 = rxep[1].mbuf;
  51
  52                 /* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
  53                 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) !=
  54                                  offsetof(struct rte_mbuf, buf_addr) + 8);
  55                 vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr);
  56                 vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr);
  57
  58                 /* convert pa to dma_addr hdr/data */
  59                 dma_addr0 = _mm_unpackhi_epi64(vaddr0, vaddr0);
  60                 dma_addr1 = _mm_unpackhi_epi64(vaddr1, vaddr1);
  61
  62                 /* add headroom to pa values */
  63                 dma_addr0 = _mm_add_epi64(dma_addr0, hdr_room);
  64                 dma_addr1 = _mm_add_epi64(dma_addr1, hdr_room);
  65
  66                 /* flush desc with pa dma_addr */
  67                 _mm_store_si128((__m128i *)&rxdp++->read, dma_addr0);
  68                 _mm_store_si128((__m128i *)&rxdp++->read, dma_addr1);
  69         }
  70
  71         rxq->rxrearm_start += ICE_RXQ_REARM_THRESH;
  72         if (rxq->rxrearm_start >= rxq->nb_rx_desc)
  73                 rxq->rxrearm_start = 0;
  74
  75         rxq->rxrearm_nb -= ICE_RXQ_REARM_THRESH;
  76
  77         rx_id = (uint16_t)((rxq->rxrearm_start == 0) ?
  78                            (rxq->nb_rx_desc - 1) : (rxq->rxrearm_start - 1));
  79
  80         /* Update the tail pointer on the NIC */
  81         ICE_PCI_REG_WRITE(rxq->qrx_tail, rx_id);
  82 }
  83
  84 static inline void
  85 ice_rx_desc_to_olflags_v(struct ice_rx_queue *rxq, __m128i descs[4],
  86                          struct rte_mbuf **rx_pkts)
  87 {
  88         const __m128i mbuf_init = _mm_set_epi64x(0, rxq->mbuf_initializer);
  89         __m128i rearm0, rearm1, rearm2, rearm3;
  90
  91         __m128i tmp_desc, flags, rss_vlan;
  92
  93         /* mask everything except checksum, RSS and VLAN flags.
  94          * bit6:4 for checksum.
  95          * bit12 for RSS indication.
  96          * bit13 for VLAN indication.
  97          */
  98         const __m128i desc_mask = _mm_set_epi32(0x3070, 0x3070,
  99                                                 0x3070, 0x3070);
 100
 101         const __m128i cksum_mask = _mm_set_epi32(PKT_RX_IP_CKSUM_MASK |
 102                                                  PKT_RX_L4_CKSUM_MASK |
 103                                                  PKT_RX_EIP_CKSUM_BAD,
 104                                                  PKT_RX_IP_CKSUM_MASK |
 105                                                  PKT_RX_L4_CKSUM_MASK |
 106                                                  PKT_RX_EIP_CKSUM_BAD,
 107                                                  PKT_RX_IP_CKSUM_MASK |
 108                                                  PKT_RX_L4_CKSUM_MASK |
 109                                                  PKT_RX_EIP_CKSUM_BAD,
 110                                                  PKT_RX_IP_CKSUM_MASK |
 111                                                  PKT_RX_L4_CKSUM_MASK |
 112                                                  PKT_RX_EIP_CKSUM_BAD);
 113
 114         /* map the checksum, rss and vlan fields to the checksum, rss
 115          * and vlan flag
 116          */
 117         const __m128i cksum_flags = _mm_set_epi8(0, 0, 0, 0, 0, 0, 0, 0,
 118                         /* shift right 1 bit to make sure it not exceed 255 */
 119                         (PKT_RX_EIP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD |
 120                          PKT_RX_IP_CKSUM_BAD) >> 1,
 121                         (PKT_RX_EIP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD |
 122                          PKT_RX_IP_CKSUM_GOOD) >> 1,
 123                         (PKT_RX_EIP_CKSUM_BAD | PKT_RX_L4_CKSUM_GOOD |
 124                          PKT_RX_IP_CKSUM_BAD) >> 1,
 125                         (PKT_RX_EIP_CKSUM_BAD | PKT_RX_L4_CKSUM_GOOD |
 126                          PKT_RX_IP_CKSUM_GOOD) >> 1,
 127                         (PKT_RX_L4_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD) >> 1,
 128                         (PKT_RX_L4_CKSUM_BAD | PKT_RX_IP_CKSUM_GOOD) >> 1,
 129                         (PKT_RX_L4_CKSUM_GOOD | PKT_RX_IP_CKSUM_BAD) >> 1,
 130                         (PKT_RX_L4_CKSUM_GOOD | PKT_RX_IP_CKSUM_GOOD) >> 1);
 131
 132         const __m128i rss_vlan_flags = _mm_set_epi8(0, 0, 0, 0,
 133                         0, 0, 0, 0,
 134                         0, 0, 0, 0,
 135                         PKT_RX_RSS_HASH | PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED,
 136                         PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED,
 137                         PKT_RX_RSS_HASH, 0);
 138
 139         /* merge 4 descriptors */
 140         flags = _mm_unpackhi_epi32(descs[0], descs[1]);
 141         tmp_desc = _mm_unpackhi_epi32(descs[2], descs[3]);
 142         tmp_desc = _mm_unpacklo_epi64(flags, tmp_desc);
 143         tmp_desc = _mm_and_si128(flags, desc_mask);
 144
 145         /* checksum flags */
 146         tmp_desc = _mm_srli_epi32(tmp_desc, 4);
 147         flags = _mm_shuffle_epi8(cksum_flags, tmp_desc);
 148         /* then we shift left 1 bit */
 149         flags = _mm_slli_epi32(flags, 1);
 150         /* we need to mask out the reduntant bits introduced by RSS or
 151          * VLAN fields.
 152          */
 153         flags = _mm_and_si128(flags, cksum_mask);
 154
 155         /* RSS, VLAN flag */
 156         tmp_desc = _mm_srli_epi32(tmp_desc, 8);
 157         rss_vlan = _mm_shuffle_epi8(rss_vlan_flags, tmp_desc);
 158
 159         /* merge the flags */
 160         flags = _mm_or_si128(flags, rss_vlan);
 161
 162         /**
 163          * At this point, we have the 4 sets of flags in the low 16-bits
 164          * of each 32-bit value in flags.
 165          * We want to extract these, and merge them with the mbuf init data
 166          * so we can do a single 16-byte write to the mbuf to set the flags
 167          * and all the other initialization fields. Extracting the
 168          * appropriate flags means that we have to do a shift and blend for
 169          * each mbuf before we do the write.
 170          */
 171         rearm0 = _mm_blend_epi16(mbuf_init, _mm_slli_si128(flags, 8), 0x10);
 172         rearm1 = _mm_blend_epi16(mbuf_init, _mm_slli_si128(flags, 4), 0x10);
 173         rearm2 = _mm_blend_epi16(mbuf_init, flags, 0x10);
 174         rearm3 = _mm_blend_epi16(mbuf_init, _mm_srli_si128(flags, 4), 0x10);
 175
 176         /* write the rearm data and the olflags in one write */
 177         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, ol_flags) !=
 178                          offsetof(struct rte_mbuf, rearm_data) + 8);
 179         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, rearm_data) !=
 180                          RTE_ALIGN(offsetof(struct rte_mbuf, rearm_data), 16));
 181         _mm_store_si128((__m128i *)&rx_pkts[0]->rearm_data, rearm0);
 182         _mm_store_si128((__m128i *)&rx_pkts[1]->rearm_data, rearm1);
 183         _mm_store_si128((__m128i *)&rx_pkts[2]->rearm_data, rearm2);
 184         _mm_store_si128((__m128i *)&rx_pkts[3]->rearm_data, rearm3);
 185 }
 186
 187 static inline void
 188 ice_rx_desc_to_ptype_v(__m128i descs[4], struct rte_mbuf **rx_pkts,
 189                        uint32_t *ptype_tbl)
 190 {
 191         const __m128i ptype_mask = _mm_set_epi16(0, ICE_RX_FLEX_DESC_PTYPE_M,
 192                                                  0, ICE_RX_FLEX_DESC_PTYPE_M,
 193                                                  0, ICE_RX_FLEX_DESC_PTYPE_M,
 194                                                  0, ICE_RX_FLEX_DESC_PTYPE_M);
 195         __m128i ptype_01 = _mm_unpacklo_epi32(descs[0], descs[1]);
 196         __m128i ptype_23 = _mm_unpacklo_epi32(descs[2], descs[3]);
 197         __m128i ptype_all = _mm_unpacklo_epi64(ptype_01, ptype_23);
 198
 199         ptype_all = _mm_and_si128(ptype_all, ptype_mask);
 200
 201         rx_pkts[0]->packet_type = ptype_tbl[_mm_extract_epi16(ptype_all, 1)];
 202         rx_pkts[1]->packet_type = ptype_tbl[_mm_extract_epi16(ptype_all, 3)];
 203         rx_pkts[2]->packet_type = ptype_tbl[_mm_extract_epi16(ptype_all, 5)];
 204         rx_pkts[3]->packet_type = ptype_tbl[_mm_extract_epi16(ptype_all, 7)];
 205 }
 206
 207 /**
 208  * Notice:
 209  * - nb_pkts < ICE_DESCS_PER_LOOP, just return no packet
 210  * - nb_pkts > ICE_VPMD_RX_BURST, only scan ICE_VPMD_RX_BURST
 211  *   numbers of DD bits
 212  */
 213 static inline uint16_t
 214 _ice_recv_raw_pkts_vec(struct ice_rx_queue *rxq, struct rte_mbuf **rx_pkts,
 215                        uint16_t nb_pkts, uint8_t *split_packet)
 216 {
 217         volatile union ice_rx_flex_desc *rxdp;
 218         struct ice_rx_entry *sw_ring;
 219         uint16_t nb_pkts_recd;
 220         int pos;
 221         uint64_t var;
 222         uint32_t *ptype_tbl = rxq->vsi->adapter->ptype_tbl;
 223         __m128i crc_adjust = _mm_set_epi16
 224                                 (0, 0, 0,       /* ignore non-length fields */
 225                                  -rxq->crc_len, /* sub crc on data_len */
 226                                  0,          /* ignore high-16bits of pkt_len */
 227                                  -rxq->crc_len, /* sub crc on pkt_len */
 228                                  0, 0           /* ignore pkt_type field */
 229                                 );
 230         const __m128i zero = _mm_setzero_si128();
 231         /* mask to shuffle from desc. to mbuf */
 232         const __m128i shuf_msk = _mm_set_epi8
 233                         (15, 14, 13, 12,  /* octet 12~15, 32 bits rss */
 234                          11, 10,      /* octet 10~11, 16 bits vlan_macip */
 235                          5, 4,        /* octet 4~5, 16 bits data_len */
 236                          0xFF, 0xFF,  /* skip high 16 bits pkt_len, zero out */
 237                          5, 4,        /* octet 4~5, low 16 bits pkt_len */
 238                          0xFF, 0xFF,  /* pkt_type set as unknown */
 239                          0xFF, 0xFF   /* pkt_type set as unknown */
 240                         );
 241         const __m128i eop_shuf_mask = _mm_set_epi8(0xFF, 0xFF,
 242                                                    0xFF, 0xFF,
 243                                                    0xFF, 0xFF,
 244                                                    0xFF, 0xFF,
 245                                                    0xFF, 0xFF,
 246                                                    0xFF, 0xFF,
 247                                                    0x04, 0x0C,
 248                                                    0x00, 0x08);
 249
 250         /**
 251          * compile-time check the above crc_adjust layout is correct.
 252          * NOTE: the first field (lowest address) is given last in set_epi16
 253          * call above.
 254          */
 255         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, pkt_len) !=
 256                          offsetof(struct rte_mbuf, rx_descriptor_fields1) + 4);
 257         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, data_len) !=
 258                          offsetof(struct rte_mbuf, rx_descriptor_fields1) + 8);
 259
 260         /* 4 packets DD mask */
 261         const __m128i dd_check = _mm_set_epi64x(0x0000000100000001LL,
 262                                                 0x0000000100000001LL);
 263         /* 4 packets EOP mask */
 264         const __m128i eop_check = _mm_set_epi64x(0x0000000200000002LL,
 265                                                  0x0000000200000002LL);
 266
 267         /* nb_pkts shall be less equal than ICE_MAX_RX_BURST */
 268         nb_pkts = RTE_MIN(nb_pkts, ICE_MAX_RX_BURST);
 269
 270         /* nb_pkts has to be floor-aligned to ICE_DESCS_PER_LOOP */
 271         nb_pkts = RTE_ALIGN_FLOOR(nb_pkts, ICE_DESCS_PER_LOOP);
 272
 273         /* Just the act of getting into the function from the application is
 274          * going to cost about 7 cycles
 275          */
 276         rxdp = rxq->rx_ring + rxq->rx_tail;
 277
 278         rte_prefetch0(rxdp);
 279
 280         /* See if we need to rearm the RX queue - gives the prefetch a bit
 281          * of time to act
 282          */
 283         if (rxq->rxrearm_nb > ICE_RXQ_REARM_THRESH)
 284                 ice_rxq_rearm(rxq);
 285
 286         /* Before we start moving massive data around, check to see if
 287          * there is actually a packet available
 288          */
 289         if (!(rxdp->wb.status_error0 &
 290               rte_cpu_to_le_32(1 << ICE_RX_FLEX_DESC_STATUS0_DD_S)))
 291                 return 0;
 292
 293         /**
 294          * Compile-time verify the shuffle mask
 295          * NOTE: some field positions already verified above, but duplicated
 296          * here for completeness in case of future modifications.
 297          */
 298         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, pkt_len) !=
 299                          offsetof(struct rte_mbuf, rx_descriptor_fields1) + 4);
 300         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, data_len) !=
 301                          offsetof(struct rte_mbuf, rx_descriptor_fields1) + 8);
 302         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, vlan_tci) !=
 303                          offsetof(struct rte_mbuf, rx_descriptor_fields1) + 10);
 304         RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, hash) !=
 305                          offsetof(struct rte_mbuf, rx_descriptor_fields1) + 12);
 306
 307         /* Cache is empty -> need to scan the buffer rings, but first move
 308          * the next 'n' mbufs into the cache
 309          */
 310         sw_ring = &rxq->sw_ring[rxq->rx_tail];
 311
 312         /* A. load 4 packet in one loop
 313          * [A*. mask out 4 unused dirty field in desc]
 314          * B. copy 4 mbuf point from swring to rx_pkts
 315          * C. calc the number of DD bits among the 4 packets
 316          * [C*. extract the end-of-packet bit, if requested]
 317          * D. fill info. from desc to mbuf
 318          */
 319
 320         for (pos = 0, nb_pkts_recd = 0; pos < nb_pkts;
 321              pos += ICE_DESCS_PER_LOOP,
 322              rxdp += ICE_DESCS_PER_LOOP) {
 323                 __m128i descs[ICE_DESCS_PER_LOOP];
 324                 __m128i pkt_mb1, pkt_mb2, pkt_mb3, pkt_mb4;
 325                 __m128i staterr, sterr_tmp1, sterr_tmp2;
 326                 /* 2 64 bit or 4 32 bit mbuf pointers in one XMM reg. */
 327                 __m128i mbp1;
 328 #if defined(RTE_ARCH_X86_64)
 329                 __m128i mbp2;
 330 #endif
 331
 332                 /* B.1 load 2 (64 bit) or 4 (32 bit) mbuf points */
 333                 mbp1 = _mm_loadu_si128((__m128i *)&sw_ring[pos]);
 334                 /* Read desc statuses backwards to avoid race condition */
 335                 /* A.1 load 4 pkts desc */
 336                 descs[3] = _mm_loadu_si128((__m128i *)(rxdp + 3));
 337                 rte_compiler_barrier();
 338
 339                 /* B.2 copy 2 64 bit or 4 32 bit mbuf point into rx_pkts */
 340                 _mm_storeu_si128((__m128i *)&rx_pkts[pos], mbp1);
 341
 342 #if defined(RTE_ARCH_X86_64)
 343                 /* B.1 load 2 64 bit mbuf points */
 344                 mbp2 = _mm_loadu_si128((__m128i *)&sw_ring[pos + 2]);
 345 #endif
 346
 347                 descs[2] = _mm_loadu_si128((__m128i *)(rxdp + 2));
 348                 rte_compiler_barrier();
 349                 /* B.1 load 2 mbuf point */
 350                 descs[1] = _mm_loadu_si128((__m128i *)(rxdp + 1));
 351                 rte_compiler_barrier();
 352                 descs[0] = _mm_loadu_si128((__m128i *)(rxdp));
 353
 354 #if defined(RTE_ARCH_X86_64)
 355                 /* B.2 copy 2 mbuf point into rx_pkts  */
 356                 _mm_storeu_si128((__m128i *)&rx_pkts[pos + 2], mbp2);
 357 #endif
 358
 359                 if (split_packet) {
 360                         rte_mbuf_prefetch_part2(rx_pkts[pos]);
 361                         rte_mbuf_prefetch_part2(rx_pkts[pos + 1]);
 362                         rte_mbuf_prefetch_part2(rx_pkts[pos + 2]);
 363                         rte_mbuf_prefetch_part2(rx_pkts[pos + 3]);
 364                 }
 365
 366                 /* avoid compiler reorder optimization */
 367                 rte_compiler_barrier();
 368
 369                 /* D.1 pkt 3,4 convert format from desc to pktmbuf */
 370                 pkt_mb4 = _mm_shuffle_epi8(descs[3], shuf_msk);
 371                 pkt_mb3 = _mm_shuffle_epi8(descs[2], shuf_msk);
 372
 373                 /* C.1 4=>2 filter staterr info only */
 374                 sterr_tmp2 = _mm_unpackhi_epi32(descs[3], descs[2]);
 375                 /* C.1 4=>2 filter staterr info only */
 376                 sterr_tmp1 = _mm_unpackhi_epi32(descs[1], descs[0]);
 377
 378                 ice_rx_desc_to_olflags_v(rxq, descs, &rx_pkts[pos]);
 379
 380                 /* D.2 pkt 3,4 set in_port/nb_seg and remove crc */
 381                 pkt_mb4 = _mm_add_epi16(pkt_mb4, crc_adjust);
 382                 pkt_mb3 = _mm_add_epi16(pkt_mb3, crc_adjust);
 383
 384                 /* D.1 pkt 1,2 convert format from desc to pktmbuf */
 385                 pkt_mb2 = _mm_shuffle_epi8(descs[1], shuf_msk);
 386                 pkt_mb1 = _mm_shuffle_epi8(descs[0], shuf_msk);
 387
 388                 /* C.2 get 4 pkts staterr value  */
 389                 staterr = _mm_unpacklo_epi32(sterr_tmp1, sterr_tmp2);
 390
 391                 /* D.3 copy final 3,4 data to rx_pkts */
 392                 _mm_storeu_si128
 393                         ((void *)&rx_pkts[pos + 3]->rx_descriptor_fields1,
 394                          pkt_mb4);
 395                 _mm_storeu_si128
 396                         ((void *)&rx_pkts[pos + 2]->rx_descriptor_fields1,
 397                          pkt_mb3);
 398
 399                 /* D.2 pkt 1,2 set in_port/nb_seg and remove crc */
 400                 pkt_mb2 = _mm_add_epi16(pkt_mb2, crc_adjust);
 401                 pkt_mb1 = _mm_add_epi16(pkt_mb1, crc_adjust);
 402
 403                 /* C* extract and record EOP bit */
 404                 if (split_packet) {
 405                         /* and with mask to extract bits, flipping 1-0 */
 406                         __m128i eop_bits = _mm_andnot_si128(staterr, eop_check);
 407                         /* the staterr values are not in order, as the count
 408                          * count of dd bits doesn't care. However, for end of
 409                          * packet tracking, we do care, so shuffle. This also
 410                          * compresses the 32-bit values to 8-bit
 411                          */
 412                         eop_bits = _mm_shuffle_epi8(eop_bits, eop_shuf_mask);
 413                         /* store the resulting 32-bit value */
 414                         *(int *)split_packet = _mm_cvtsi128_si32(eop_bits);
 415                         split_packet += ICE_DESCS_PER_LOOP;
 416                 }
 417
 418                 /* C.3 calc available number of desc */
 419                 staterr = _mm_and_si128(staterr, dd_check);
 420                 staterr = _mm_packs_epi32(staterr, zero);
 421
 422                 /* D.3 copy final 1,2 data to rx_pkts */
 423                 _mm_storeu_si128
 424                         ((void *)&rx_pkts[pos + 1]->rx_descriptor_fields1,
 425                          pkt_mb2);
 426                 _mm_storeu_si128((void *)&rx_pkts[pos]->rx_descriptor_fields1,
 427                                  pkt_mb1);
 428                 ice_rx_desc_to_ptype_v(descs, &rx_pkts[pos], ptype_tbl);
 429                 /* C.4 calc avaialbe number of desc */
 430                 var = __builtin_popcountll(_mm_cvtsi128_si64(staterr));
 431                 nb_pkts_recd += var;
 432                 if (likely(var != ICE_DESCS_PER_LOOP))
 433                         break;
 434         }
 435
 436         /* Update our internal tail pointer */
 437         rxq->rx_tail = (uint16_t)(rxq->rx_tail + nb_pkts_recd);
 438         rxq->rx_tail = (uint16_t)(rxq->rx_tail & (rxq->nb_rx_desc - 1));
 439         rxq->rxrearm_nb = (uint16_t)(rxq->rxrearm_nb + nb_pkts_recd);
 440
 441         return nb_pkts_recd;
 442 }
 443
 444 /**
 445  * Notice:
 446  * - nb_pkts < ICE_DESCS_PER_LOOP, just return no packet
 447  * - nb_pkts > ICE_VPMD_RX_BURST, only scan ICE_VPMD_RX_BURST
 448  *   numbers of DD bits
 449  */
 450 uint16_t
 451 ice_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
 452                   uint16_t nb_pkts)
 453 {
 454         return _ice_recv_raw_pkts_vec(rx_queue, rx_pkts, nb_pkts, NULL);
 455 }
 456
 457 /* vPMD receive routine that reassembles scattered packets
 458  * Notice:
 459  * - nb_pkts < ICE_DESCS_PER_LOOP, just return no packet
 460  * - nb_pkts > ICE_VPMD_RX_BURST, only scan ICE_VPMD_RX_BURST
 461  *   numbers of DD bits
 462  */
 463 uint16_t
 464 ice_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
 465                             uint16_t nb_pkts)
 466 {
 467         struct ice_rx_queue *rxq = rx_queue;
 468         uint8_t split_flags[ICE_VPMD_RX_BURST] = {0};
 469
 470         /* get some new buffers */
 471         uint16_t nb_bufs = _ice_recv_raw_pkts_vec(rxq, rx_pkts, nb_pkts,
 472                                                   split_flags);
 473         if (nb_bufs == 0)
 474                 return 0;
 475
 476         /* happy day case, full burst + no packets to be joined */
 477         const uint64_t *split_fl64 = (uint64_t *)split_flags;
 478
 479         if (!rxq->pkt_first_seg &&
 480             split_fl64[0] == 0 && split_fl64[1] == 0 &&
 481             split_fl64[2] == 0 && split_fl64[3] == 0)
 482                 return nb_bufs;
 483
 484         /* reassemble any packets that need reassembly*/
 485         unsigned int i = 0;
 486
 487         if (!rxq->pkt_first_seg) {
 488                 /* find the first split flag, and only reassemble then*/
 489                 while (i < nb_bufs && !split_flags[i])
 490                         i++;
 491                 if (i == nb_bufs)
 492                         return nb_bufs;
 493                 rxq->pkt_first_seg = rx_pkts[i];
 494         }
 495         return i + ice_rx_reassemble_packets(rxq, &rx_pkts[i], nb_bufs - i,
 496                                              &split_flags[i]);
 497 }
 498
 499 static inline void
 500 ice_vtx1(volatile struct ice_tx_desc *txdp, struct rte_mbuf *pkt,
 501          uint64_t flags)
 502 {
 503         uint64_t high_qw =
 504                 (ICE_TX_DESC_DTYPE_DATA |
 505                  ((uint64_t)flags  << ICE_TXD_QW1_CMD_S) |
 506                  ((uint64_t)pkt->data_len << ICE_TXD_QW1_TX_BUF_SZ_S));
 507
 508         __m128i descriptor = _mm_set_epi64x(high_qw,
 509                                             pkt->buf_iova + pkt->data_off);
 510         _mm_store_si128((__m128i *)txdp, descriptor);
 511 }
 512
 513 static inline void
 514 ice_vtx(volatile struct ice_tx_desc *txdp, struct rte_mbuf **pkt,
 515         uint16_t nb_pkts, uint64_t flags)
 516 {
 517         int i;
 518
 519         for (i = 0; i < nb_pkts; ++i, ++txdp, ++pkt)
 520                 ice_vtx1(txdp, *pkt, flags);
 521 }
 522
 523 static uint16_t
 524 ice_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
 525                          uint16_t nb_pkts)
 526 {
 527         struct ice_tx_queue *txq = (struct ice_tx_queue *)tx_queue;
 528         volatile struct ice_tx_desc *txdp;
 529         struct ice_tx_entry *txep;
 530         uint16_t n, nb_commit, tx_id;
 531         uint64_t flags = ICE_TD_CMD;
 532         uint64_t rs = ICE_TX_DESC_CMD_RS | ICE_TD_CMD;
 533         int i;
 534
 535         /* cross rx_thresh boundary is not allowed */
 536         nb_pkts = RTE_MIN(nb_pkts, txq->tx_rs_thresh);
 537
 538         if (txq->nb_tx_free < txq->tx_free_thresh)
 539                 ice_tx_free_bufs(txq);
 540
 541         nb_pkts = (uint16_t)RTE_MIN(txq->nb_tx_free, nb_pkts);
 542         nb_commit = nb_pkts;
 543         if (unlikely(nb_pkts == 0))
 544                 return 0;
 545
 546         tx_id = txq->tx_tail;
 547         txdp = &txq->tx_ring[tx_id];
 548         txep = &txq->sw_ring[tx_id];
 549
 550         txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_pkts);
 551
 552         n = (uint16_t)(txq->nb_tx_desc - tx_id);
 553         if (nb_commit >= n) {
 554                 ice_tx_backlog_entry(txep, tx_pkts, n);
 555
 556                 for (i = 0; i < n - 1; ++i, ++tx_pkts, ++txdp)
 557                         ice_vtx1(txdp, *tx_pkts, flags);
 558
 559                 ice_vtx1(txdp, *tx_pkts++, rs);
 560
 561                 nb_commit = (uint16_t)(nb_commit - n);
 562
 563                 tx_id = 0;
 564                 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
 565
 566                 /* avoid reach the end of ring */
 567                 txdp = &txq->tx_ring[tx_id];
 568                 txep = &txq->sw_ring[tx_id];
 569         }
 570
 571         ice_tx_backlog_entry(txep, tx_pkts, nb_commit);
 572
 573         ice_vtx(txdp, tx_pkts, nb_commit, flags);
 574
 575         tx_id = (uint16_t)(tx_id + nb_commit);
 576         if (tx_id > txq->tx_next_rs) {
 577                 txq->tx_ring[txq->tx_next_rs].cmd_type_offset_bsz |=
 578                         rte_cpu_to_le_64(((uint64_t)ICE_TX_DESC_CMD_RS) <<
 579                                          ICE_TXD_QW1_CMD_S);
 580                 txq->tx_next_rs =
 581                         (uint16_t)(txq->tx_next_rs + txq->tx_rs_thresh);
 582         }
 583
 584         txq->tx_tail = tx_id;
 585
 586         ICE_PCI_REG_WRITE(txq->qtx_tail, txq->tx_tail);
 587
 588         return nb_pkts;
 589 }
 590
 591 uint16_t
 592 ice_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
 593                   uint16_t nb_pkts)
 594 {
 595         uint16_t nb_tx = 0;
 596         struct ice_tx_queue *txq = (struct ice_tx_queue *)tx_queue;
 597
 598         while (nb_pkts) {
 599                 uint16_t ret, num;
 600
 601                 num = (uint16_t)RTE_MIN(nb_pkts, txq->tx_rs_thresh);
 602                 ret = ice_xmit_fixed_burst_vec(tx_queue, &tx_pkts[nb_tx], num);
 603                 nb_tx += ret;
 604                 nb_pkts -= ret;
 605                 if (ret < num)
 606                         break;
 607         }
 608
 609         return nb_tx;
 610 }
 611
 612 int __rte_cold
 613 ice_rxq_vec_setup(struct ice_rx_queue *rxq)
 614 {
 615         if (!rxq)
 616                 return -1;
 617
 618         rxq->rx_rel_mbufs = _ice_rx_queue_release_mbufs_vec;
 619         return ice_rxq_vec_setup_default(rxq);
 620 }
 621
 622 int __rte_cold
 623 ice_txq_vec_setup(struct ice_tx_queue __rte_unused *txq)
 624 {
 625         if (!txq)
 626                 return -1;
 627
 628         txq->tx_rel_mbufs = _ice_tx_queue_release_mbufs_vec;
 629         return 0;
 630 }
 631
 632 int __rte_cold
 633 ice_rx_vec_dev_check(struct rte_eth_dev *dev)
 634 {
 635         return ice_rx_vec_dev_check_default(dev);
 636 }
 637
 638 int __rte_cold
 639 ice_tx_vec_dev_check(struct rte_eth_dev *dev)
 640 {
 641         return ice_tx_vec_dev_check_default(dev);
 642 }