1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2017 6WIND S.A. 3 * Copyright 2017 Mellanox Technologies, Ltd 4 */ 5 6 #ifndef RTE_PMD_MLX5_RXTX_VEC_ALTIVEC_H_ 7 #define RTE_PMD_MLX5_RXTX_VEC_ALTIVEC_H_ 8 9 #include <stdint.h> 10 #include <string.h> 11 #include <stdlib.h> 12 13 #include <rte_altivec.h> 14 15 #include <rte_mbuf.h> 16 #include <rte_mempool.h> 17 #include <rte_prefetch.h> 18 19 #include <mlx5_prm.h> 20 21 #include "mlx5_defs.h" 22 #include "mlx5.h" 23 #include "mlx5_utils.h" 24 #include "mlx5_rxtx.h" 25 #include "mlx5_rxtx_vec.h" 26 #include "mlx5_autoconf.h" 27 28 #ifndef __INTEL_COMPILER 29 #pragma GCC diagnostic ignored "-Wcast-qual" 30 #pragma GCC diagnostic ignored "-Wstrict-aliasing" 31 #endif 32 33 /** 34 * Store free buffers to RX SW ring. 35 * 36 * @param rxq 37 * Pointer to RX queue structure. 38 * @param pkts 39 * Pointer to array of packets to be stored. 40 * @param pkts_n 41 * Number of packets to be stored. 42 */ 43 static inline void 44 rxq_copy_mbuf_v(struct mlx5_rxq_data *rxq, struct rte_mbuf **pkts, uint16_t n) 45 { 46 const uint16_t q_mask = (1 << rxq->elts_n) - 1; 47 struct rte_mbuf **elts = &(*rxq->elts)[rxq->rq_pi & q_mask]; 48 unsigned int pos; 49 uint16_t p = n & -2; 50 51 for (pos = 0; pos < p; pos += 2) { 52 vector unsigned char mbp; 53 54 mbp = (vector unsigned char)vec_vsx_ld(0, 55 (signed int const *)&elts[pos]); 56 *(vector unsigned char *)&pkts[pos] = mbp; 57 } 58 if (n & 1) 59 pkts[pos] = elts[pos]; 60 } 61 62 /** 63 * Decompress a compressed completion and fill in mbufs in RX SW ring with data 64 * extracted from the title completion descriptor. 65 * 66 * @param rxq 67 * Pointer to RX queue structure. 68 * @param cq 69 * Pointer to completion array having a compressed completion at first. 70 * @param elts 71 * Pointer to SW ring to be filled. The first mbuf has to be pre-built from 72 * the title completion descriptor to be copied to the rest of mbufs. 73 * 74 * @return 75 * Number of mini-CQEs successfully decompressed. 76 */ 77 static inline uint16_t 78 rxq_cq_decompress_v(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cq, 79 struct rte_mbuf **elts) 80 { 81 volatile struct mlx5_mini_cqe8 *mcq = (void *)&(cq + 1)->pkt_info; 82 struct rte_mbuf *t_pkt = elts[0]; /* Title packet is pre-built. */ 83 const vector unsigned char zero = (vector unsigned char){0}; 84 /* Mask to shuffle from extracted mini CQE to mbuf. */ 85 const vector unsigned char shuf_mask1 = (vector unsigned char){ 86 -1, -1, -1, -1, /* skip packet_type */ 87 7, 6, -1, -1, /* bswap16, pkt_len */ 88 7, 6, /* bswap16, data_len */ 89 -1, -1, /* skip vlan_tci */ 90 3, 2, 1, 0}; /* bswap32, rss */ 91 const vector unsigned char shuf_mask2 = (vector unsigned char){ 92 -1, -1, -1, -1, /* skip packet_type */ 93 15, 14, -1, -1, /* bswap16, pkt_len */ 94 15, 14, /* data_len, bswap16 */ 95 -1, -1, /* skip vlan_tci */ 96 11, 10, 9, 8}; /* bswap32, rss */ 97 /* Restore the compressed count. Must be 16 bits. */ 98 const uint16_t mcqe_n = t_pkt->data_len + 99 (rxq->crc_present * RTE_ETHER_CRC_LEN); 100 const vector unsigned char rearm = 101 (vector unsigned char)vec_vsx_ld(0, 102 (signed int const *)&t_pkt->rearm_data); 103 const vector unsigned char rxdf = 104 (vector unsigned char)vec_vsx_ld(0, 105 (signed int const *)&t_pkt->rx_descriptor_fields1); 106 const vector unsigned char crc_adj = 107 (vector unsigned char)(vector unsigned short){ 108 0, 0, rxq->crc_present * RTE_ETHER_CRC_LEN, 0, 109 rxq->crc_present * RTE_ETHER_CRC_LEN, 0, 0, 0}; 110 const vector unsigned short rxdf_sel_mask = 111 (vector unsigned short){ 112 0xffff, 0xffff, 0, 0, 0, 0xffff, 0, 0}; 113 const uint32_t flow_tag = t_pkt->hash.fdir.hi; 114 unsigned int pos; 115 unsigned int i; 116 unsigned int inv = 0; 117 118 #ifdef MLX5_PMD_SOFT_COUNTERS 119 const vector unsigned char ones = vec_splat_u8(-1); 120 uint32_t rcvd_byte = 0; 121 /* Mask to shuffle byte_cnt to add up stats. Do bswap16 for all. */ 122 const vector unsigned char len_shuf_mask = (vector unsigned char){ 123 3, 2, 11, 10, 124 7, 6, 15, 14, 125 -1, -1, -1, -1, 126 -1, -1, -1, -1}; 127 #endif 128 129 /* 130 * A. load mCQEs into a 128bit register. 131 * B. store rearm data to mbuf. 132 * C. combine data from mCQEs with rx_descriptor_fields1. 133 * D. store rx_descriptor_fields1. 134 * E. store flow tag (rte_flow mark). 135 */ 136 for (pos = 0; pos < mcqe_n; ) { 137 vector unsigned char mcqe1, mcqe2; 138 vector unsigned char rxdf1, rxdf2; 139 #ifdef MLX5_PMD_SOFT_COUNTERS 140 const vector unsigned short mcqe_sel_mask = 141 (vector unsigned short){0, 0, 0xffff, 0xffff, 142 0, 0, 0xfff, 0xffff}; 143 const vector unsigned char lower_half = { 144 0, 1, 4, 5, 8, 9, 12, 13, 16, 145 17, 20, 21, 24, 25, 28, 29}; 146 const vector unsigned char upper_half = { 147 2, 3, 6, 7, 10, 11, 14, 15, 148 18, 19, 22, 23, 26, 27, 30, 31}; 149 vector unsigned short left, right; 150 vector unsigned char byte_cnt, invalid_mask; 151 vector unsigned long lshift; 152 __attribute__((altivec(vector__))) 153 __attribute__((altivec(bool__))) 154 unsigned long long shmask; 155 const vector unsigned long shmax = {64, 64}; 156 #endif 157 158 for (i = 0; i < MLX5_VPMD_DESCS_PER_LOOP; ++i) 159 if (likely(pos + i < mcqe_n)) 160 rte_prefetch0((void *)(cq + pos + i)); 161 162 /* A.1 load mCQEs into a 128bit register. */ 163 mcqe1 = (vector unsigned char)vec_vsx_ld(0, 164 (signed int const *)&mcq[pos % 8]); 165 mcqe2 = (vector unsigned char)vec_vsx_ld(0, 166 (signed int const *)&mcq[pos % 8 + 2]); 167 168 /* B.1 store rearm data to mbuf. */ 169 *(vector unsigned char *) 170 &elts[pos]->rearm_data = rearm; 171 *(vector unsigned char *) 172 &elts[pos + 1]->rearm_data = rearm; 173 174 /* C.1 combine data from mCQEs with rx_descriptor_fields1. */ 175 rxdf1 = vec_perm(mcqe1, zero, shuf_mask1); 176 rxdf2 = vec_perm(mcqe1, zero, shuf_mask2); 177 rxdf1 = (vector unsigned char) 178 ((vector unsigned short)rxdf1 - 179 (vector unsigned short)crc_adj); 180 rxdf2 = (vector unsigned char) 181 ((vector unsigned short)rxdf2 - 182 (vector unsigned short)crc_adj); 183 rxdf1 = (vector unsigned char) 184 vec_sel((vector unsigned short)rxdf1, 185 (vector unsigned short)rxdf, rxdf_sel_mask); 186 rxdf2 = (vector unsigned char) 187 vec_sel((vector unsigned short)rxdf2, 188 (vector unsigned short)rxdf, rxdf_sel_mask); 189 190 /* D.1 store rx_descriptor_fields1. */ 191 *(vector unsigned char *) 192 &elts[pos]->rx_descriptor_fields1 = rxdf1; 193 *(vector unsigned char *) 194 &elts[pos + 1]->rx_descriptor_fields1 = rxdf2; 195 196 /* B.1 store rearm data to mbuf. */ 197 *(vector unsigned char *) 198 &elts[pos + 2]->rearm_data = rearm; 199 *(vector unsigned char *) 200 &elts[pos + 3]->rearm_data = rearm; 201 202 /* C.1 combine data from mCQEs with rx_descriptor_fields1. */ 203 rxdf1 = vec_perm(mcqe2, zero, shuf_mask1); 204 rxdf2 = vec_perm(mcqe2, zero, shuf_mask2); 205 rxdf1 = (vector unsigned char) 206 ((vector unsigned short)rxdf1 - 207 (vector unsigned short)crc_adj); 208 rxdf2 = (vector unsigned char) 209 ((vector unsigned short)rxdf2 - 210 (vector unsigned short)crc_adj); 211 rxdf1 = (vector unsigned char) 212 vec_sel((vector unsigned short)rxdf1, 213 (vector unsigned short)rxdf, rxdf_sel_mask); 214 rxdf2 = (vector unsigned char) 215 vec_sel((vector unsigned short)rxdf2, 216 (vector unsigned short)rxdf, rxdf_sel_mask); 217 218 /* D.1 store rx_descriptor_fields1. */ 219 *(vector unsigned char *) 220 &elts[pos + 2]->rx_descriptor_fields1 = rxdf1; 221 *(vector unsigned char *) 222 &elts[pos + 3]->rx_descriptor_fields1 = rxdf2; 223 224 #ifdef MLX5_PMD_SOFT_COUNTERS 225 invalid_mask = (vector unsigned char)(vector unsigned long){ 226 (mcqe_n - pos) * sizeof(uint16_t) * 8, 0}; 227 228 lshift = 229 vec_splat((vector unsigned long)invalid_mask, 0); 230 shmask = vec_cmpgt(shmax, lshift); 231 invalid_mask = (vector unsigned char) 232 vec_sl((vector unsigned long)ones, lshift); 233 invalid_mask = (vector unsigned char) 234 vec_sel((vector unsigned long)shmask, 235 (vector unsigned long)invalid_mask, shmask); 236 237 mcqe1 = (vector unsigned char) 238 vec_sro((vector unsigned short)mcqe1, 239 (vector unsigned char){32}), 240 byte_cnt = (vector unsigned char) 241 vec_sel((vector unsigned short)mcqe1, 242 (vector unsigned short)mcqe2, mcqe_sel_mask); 243 byte_cnt = vec_perm(byte_cnt, zero, len_shuf_mask); 244 byte_cnt = (vector unsigned char) 245 vec_andc((vector unsigned long)byte_cnt, 246 (vector unsigned long)invalid_mask); 247 left = vec_perm((vector unsigned short)byte_cnt, 248 (vector unsigned short)zero, lower_half); 249 right = vec_perm((vector unsigned short)byte_cnt, 250 (vector unsigned short)zero, upper_half); 251 byte_cnt = (vector unsigned char)vec_add(left, right); 252 left = vec_perm((vector unsigned short)byte_cnt, 253 (vector unsigned short)zero, lower_half); 254 right = vec_perm((vector unsigned short)byte_cnt, 255 (vector unsigned short)zero, upper_half); 256 byte_cnt = (vector unsigned char)vec_add(left, right); 257 rcvd_byte += ((vector unsigned long)byte_cnt)[0]; 258 #endif 259 260 if (rxq->mark) { 261 /* E.1 store flow tag (rte_flow mark). */ 262 elts[pos]->hash.fdir.hi = flow_tag; 263 elts[pos + 1]->hash.fdir.hi = flow_tag; 264 elts[pos + 2]->hash.fdir.hi = flow_tag; 265 elts[pos + 3]->hash.fdir.hi = flow_tag; 266 } 267 if (rxq->dynf_meta) { 268 int32_t offs = rxq->flow_meta_offset; 269 const uint32_t meta = 270 *RTE_MBUF_DYNFIELD(t_pkt, offs, uint32_t *); 271 272 /* Check if title packet has valid metadata. */ 273 if (meta) { 274 MLX5_ASSERT(t_pkt->ol_flags & 275 rxq->flow_meta_mask); 276 *RTE_MBUF_DYNFIELD(elts[pos], offs, 277 uint32_t *) = meta; 278 *RTE_MBUF_DYNFIELD(elts[pos + 1], offs, 279 uint32_t *) = meta; 280 *RTE_MBUF_DYNFIELD(elts[pos + 2], offs, 281 uint32_t *) = meta; 282 *RTE_MBUF_DYNFIELD(elts[pos + 3], offs, 283 uint32_t *) = meta; 284 } 285 } 286 287 pos += MLX5_VPMD_DESCS_PER_LOOP; 288 /* Move to next CQE and invalidate consumed CQEs. */ 289 if (!(pos & 0x7) && pos < mcqe_n) { 290 mcq = (void *)&(cq + pos)->pkt_info; 291 for (i = 0; i < 8; ++i) 292 cq[inv++].op_own = MLX5_CQE_INVALIDATE; 293 } 294 } 295 296 /* Invalidate the rest of CQEs. */ 297 for (; inv < mcqe_n; ++inv) 298 cq[inv].op_own = MLX5_CQE_INVALIDATE; 299 300 #ifdef MLX5_PMD_SOFT_COUNTERS 301 rxq->stats.ipackets += mcqe_n; 302 rxq->stats.ibytes += rcvd_byte; 303 #endif 304 305 rxq->cq_ci += mcqe_n; 306 return mcqe_n; 307 } 308 309 /** 310 * Calculate packet type and offload flag for mbuf and store it. 311 * 312 * @param rxq 313 * Pointer to RX queue structure. 314 * @param cqes[4] 315 * Array of four 16bytes completions extracted from the original completion 316 * descriptor. 317 * @param op_err 318 * Opcode vector having responder error status. Each field is 4B. 319 * @param pkts 320 * Pointer to array of packets to be filled. 321 */ 322 static inline void 323 rxq_cq_to_ptype_oflags_v(struct mlx5_rxq_data *rxq, 324 vector unsigned char cqes[4], vector unsigned char op_err, 325 struct rte_mbuf **pkts) 326 { 327 vector unsigned char pinfo0, pinfo1; 328 vector unsigned char pinfo, ptype; 329 vector unsigned char ol_flags = (vector unsigned char) 330 (vector unsigned int){ 331 rxq->rss_hash * PKT_RX_RSS_HASH | 332 rxq->hw_timestamp * PKT_RX_TIMESTAMP, 333 rxq->rss_hash * PKT_RX_RSS_HASH | 334 rxq->hw_timestamp * PKT_RX_TIMESTAMP, 335 rxq->rss_hash * PKT_RX_RSS_HASH | 336 rxq->hw_timestamp * PKT_RX_TIMESTAMP, 337 rxq->rss_hash * PKT_RX_RSS_HASH | 338 rxq->hw_timestamp * PKT_RX_TIMESTAMP}; 339 vector unsigned char cv_flags; 340 const vector unsigned char zero = (vector unsigned char){0}; 341 const vector unsigned char ptype_mask = 342 (vector unsigned char)(vector unsigned int){ 343 0x0000fd06, 0x0000fd06, 0x0000fd06, 0x0000fd06}; 344 const vector unsigned char ptype_ol_mask = 345 (vector unsigned char)(vector unsigned int){ 346 0x00000106, 0x00000106, 0x00000106, 0x00000106}; 347 const vector unsigned char pinfo_mask = 348 (vector unsigned char)(vector unsigned int){ 349 0x00000003, 0x00000003, 0x00000003, 0x00000003}; 350 const vector unsigned char cv_flag_sel = (vector unsigned char){ 351 0, (uint8_t)(PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED), 352 (uint8_t)(PKT_RX_IP_CKSUM_GOOD >> 1), 0, 353 (uint8_t)(PKT_RX_L4_CKSUM_GOOD >> 1), 0, 354 (uint8_t)((PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD) >> 1), 355 0, 0, 0, 0, 0, 0, 0, 0, 0}; 356 const vector unsigned char cv_mask = 357 (vector unsigned char)(vector unsigned int){ 358 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD | 359 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED, 360 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD | 361 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED, 362 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD | 363 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED, 364 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD | 365 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED}; 366 const vector unsigned char mbuf_init = 367 (vector unsigned char)vec_vsx_ld 368 (0, (vector unsigned char *)&rxq->mbuf_initializer); 369 const vector unsigned short rearm_sel_mask = 370 (vector unsigned short){0, 0, 0, 0, 0xffff, 0xffff, 0, 0}; 371 vector unsigned char rearm0, rearm1, rearm2, rearm3; 372 uint8_t pt_idx0, pt_idx1, pt_idx2, pt_idx3; 373 374 /* Extract pkt_info field. */ 375 pinfo0 = (vector unsigned char) 376 vec_mergeh((vector unsigned int)cqes[0], 377 (vector unsigned int)cqes[1]); 378 pinfo1 = (vector unsigned char) 379 vec_mergeh((vector unsigned int)cqes[2], 380 (vector unsigned int)cqes[3]); 381 pinfo = (vector unsigned char) 382 vec_mergeh((vector unsigned long)pinfo0, 383 (vector unsigned long)pinfo1); 384 385 /* Extract hdr_type_etc field. */ 386 pinfo0 = (vector unsigned char) 387 vec_mergel((vector unsigned int)cqes[0], 388 (vector unsigned int)cqes[1]); 389 pinfo1 = (vector unsigned char) 390 vec_mergel((vector unsigned int)cqes[2], 391 (vector unsigned int)cqes[3]); 392 ptype = (vector unsigned char) 393 vec_mergeh((vector unsigned long)pinfo0, 394 (vector unsigned long)pinfo1); 395 396 if (rxq->mark) { 397 const vector unsigned char pinfo_ft_mask = 398 (vector unsigned char)(vector unsigned int){ 399 0xffffff00, 0xffffff00, 0xffffff00, 0xffffff00}; 400 const vector unsigned char fdir_flags = 401 (vector unsigned char)(vector unsigned int){ 402 PKT_RX_FDIR, PKT_RX_FDIR, 403 PKT_RX_FDIR, PKT_RX_FDIR}; 404 vector unsigned char fdir_id_flags = 405 (vector unsigned char)(vector unsigned int){ 406 PKT_RX_FDIR_ID, PKT_RX_FDIR_ID, 407 PKT_RX_FDIR_ID, PKT_RX_FDIR_ID}; 408 vector unsigned char flow_tag, invalid_mask; 409 410 flow_tag = (vector unsigned char) 411 vec_and((vector unsigned long)pinfo, 412 (vector unsigned long)pinfo_ft_mask); 413 414 /* Check if flow tag is non-zero then set PKT_RX_FDIR. */ 415 invalid_mask = (vector unsigned char) 416 vec_cmpeq((vector unsigned int)flow_tag, 417 (vector unsigned int)zero); 418 ol_flags = (vector unsigned char) 419 vec_or((vector unsigned long)ol_flags, 420 (vector unsigned long) 421 vec_andc((vector unsigned long)fdir_flags, 422 (vector unsigned long)invalid_mask)); 423 424 /* Mask out invalid entries. */ 425 fdir_id_flags = (vector unsigned char) 426 vec_andc((vector unsigned long)fdir_id_flags, 427 (vector unsigned long)invalid_mask); 428 429 /* Check if flow tag MLX5_FLOW_MARK_DEFAULT. */ 430 ol_flags = (vector unsigned char) 431 vec_or((vector unsigned long)ol_flags, 432 (vector unsigned long) 433 vec_andc((vector unsigned long)fdir_id_flags, 434 (vector unsigned long) 435 vec_cmpeq((vector unsigned int)flow_tag, 436 (vector unsigned int)pinfo_ft_mask))); 437 } 438 /* 439 * Merge the two fields to generate the following: 440 * bit[1] = l3_ok 441 * bit[2] = l4_ok 442 * bit[8] = cv 443 * bit[11:10] = l3_hdr_type 444 * bit[14:12] = l4_hdr_type 445 * bit[15] = ip_frag 446 * bit[16] = tunneled 447 * bit[17] = outer_l3_type 448 */ 449 ptype = (vector unsigned char) 450 vec_and((vector unsigned long)ptype, 451 (vector unsigned long)ptype_mask); 452 pinfo = (vector unsigned char) 453 vec_and((vector unsigned long)pinfo, 454 (vector unsigned long)pinfo_mask); 455 pinfo = (vector unsigned char) 456 vec_sl((vector unsigned int)pinfo, 457 (vector unsigned int){16, 16, 16, 16}); 458 459 /* Make pinfo has merged fields for ol_flags calculation. */ 460 pinfo = (vector unsigned char) 461 vec_or((vector unsigned long)ptype, 462 (vector unsigned long)pinfo); 463 ptype = (vector unsigned char) 464 vec_sr((vector unsigned int)pinfo, 465 (vector unsigned int){10, 10, 10, 10}); 466 ptype = (vector unsigned char) 467 vec_packs((vector unsigned int)ptype, 468 (vector unsigned int)zero); 469 470 /* Errored packets will have RTE_PTYPE_ALL_MASK. */ 471 op_err = (vector unsigned char) 472 vec_sr((vector unsigned short)op_err, 473 (vector unsigned short){8, 8, 8, 8, 8, 8, 8, 8}); 474 ptype = (vector unsigned char) 475 vec_or((vector unsigned long)ptype, 476 (vector unsigned long)op_err); 477 478 pt_idx0 = (uint8_t)((vector unsigned char)ptype)[0]; 479 pt_idx1 = (uint8_t)((vector unsigned char)ptype)[2]; 480 pt_idx2 = (uint8_t)((vector unsigned char)ptype)[4]; 481 pt_idx3 = (uint8_t)((vector unsigned char)ptype)[6]; 482 483 pkts[0]->packet_type = mlx5_ptype_table[pt_idx0] | 484 !!(pt_idx0 & (1 << 6)) * rxq->tunnel; 485 pkts[1]->packet_type = mlx5_ptype_table[pt_idx1] | 486 !!(pt_idx1 & (1 << 6)) * rxq->tunnel; 487 pkts[2]->packet_type = mlx5_ptype_table[pt_idx2] | 488 !!(pt_idx2 & (1 << 6)) * rxq->tunnel; 489 pkts[3]->packet_type = mlx5_ptype_table[pt_idx3] | 490 !!(pt_idx3 & (1 << 6)) * rxq->tunnel; 491 492 /* Fill flags for checksum and VLAN. */ 493 pinfo = (vector unsigned char) 494 vec_and((vector unsigned long)pinfo, 495 (vector unsigned long)ptype_ol_mask); 496 pinfo = vec_perm(cv_flag_sel, zero, pinfo); 497 498 /* Locate checksum flags at byte[2:1] and merge with VLAN flags. */ 499 cv_flags = (vector unsigned char) 500 vec_sl((vector unsigned int)pinfo, 501 (vector unsigned int){9, 9, 9, 9}); 502 cv_flags = (vector unsigned char) 503 vec_or((vector unsigned long)pinfo, 504 (vector unsigned long)cv_flags); 505 506 /* Move back flags to start from byte[0]. */ 507 cv_flags = (vector unsigned char) 508 vec_sr((vector unsigned int)cv_flags, 509 (vector unsigned int){8, 8, 8, 8}); 510 511 /* Mask out garbage bits. */ 512 cv_flags = (vector unsigned char) 513 vec_and((vector unsigned long)cv_flags, 514 (vector unsigned long)cv_mask); 515 516 /* Merge to ol_flags. */ 517 ol_flags = (vector unsigned char) 518 vec_or((vector unsigned long)ol_flags, 519 (vector unsigned long)cv_flags); 520 521 /* Merge mbuf_init and ol_flags. */ 522 rearm0 = (vector unsigned char) 523 vec_sel((vector unsigned short)mbuf_init, 524 (vector unsigned short) 525 vec_slo((vector unsigned short)ol_flags, 526 (vector unsigned char){64}), rearm_sel_mask); 527 rearm1 = (vector unsigned char) 528 vec_sel((vector unsigned short)mbuf_init, 529 (vector unsigned short) 530 vec_slo((vector unsigned short)ol_flags, 531 (vector unsigned char){32}), rearm_sel_mask); 532 rearm2 = (vector unsigned char) 533 vec_sel((vector unsigned short)mbuf_init, 534 (vector unsigned short)ol_flags, rearm_sel_mask); 535 rearm3 = (vector unsigned char) 536 vec_sel((vector unsigned short)mbuf_init, 537 (vector unsigned short) 538 vec_sro((vector unsigned short)ol_flags, 539 (vector unsigned char){32}), rearm_sel_mask); 540 541 /* Write 8B rearm_data and 8B ol_flags. */ 542 vec_vsx_st(rearm0, 0, 543 (vector unsigned char *)&pkts[0]->rearm_data); 544 vec_vsx_st(rearm1, 0, 545 (vector unsigned char *)&pkts[1]->rearm_data); 546 vec_vsx_st(rearm2, 0, 547 (vector unsigned char *)&pkts[2]->rearm_data); 548 vec_vsx_st(rearm3, 0, 549 (vector unsigned char *)&pkts[3]->rearm_data); 550 } 551 552 553 /** 554 * Receive burst of packets. An errored completion also consumes a mbuf, but the 555 * packet_type is set to be RTE_PTYPE_ALL_MASK. Marked mbufs should be freed 556 * before returning to application. 557 * 558 * @param rxq 559 * Pointer to RX queue structure. 560 * @param[out] pkts 561 * Array to store received packets. 562 * @param pkts_n 563 * Maximum number of packets in array. 564 * @param[out] err 565 * Pointer to a flag. Set non-zero value if pkts array has at least one error 566 * packet to handle. 567 * 568 * @return 569 * Number of packets received including errors (<= pkts_n). 570 */ 571 static inline uint16_t 572 rxq_burst_v(struct mlx5_rxq_data *rxq, struct rte_mbuf **pkts, uint16_t pkts_n, 573 uint64_t *err) 574 { 575 const uint16_t q_n = 1 << rxq->cqe_n; 576 const uint16_t q_mask = q_n - 1; 577 volatile struct mlx5_cqe *cq; 578 struct rte_mbuf **elts; 579 unsigned int pos; 580 uint64_t n; 581 uint16_t repl_n; 582 uint64_t comp_idx = MLX5_VPMD_DESCS_PER_LOOP; 583 uint16_t nocmp_n = 0; 584 uint16_t rcvd_pkt = 0; 585 unsigned int cq_idx = rxq->cq_ci & q_mask; 586 unsigned int elts_idx; 587 unsigned int ownership = !!(rxq->cq_ci & (q_mask + 1)); 588 const vector unsigned char zero = (vector unsigned char){0}; 589 const vector unsigned char ones = vec_splat_u8(-1); 590 const vector unsigned char owner_check = 591 (vector unsigned char)(vector unsigned long){ 592 0x0100000001000000LL, 0x0100000001000000LL}; 593 const vector unsigned char opcode_check = 594 (vector unsigned char)(vector unsigned long){ 595 0xf0000000f0000000LL, 0xf0000000f0000000LL}; 596 const vector unsigned char format_check = 597 (vector unsigned char)(vector unsigned long){ 598 0x0c0000000c000000LL, 0x0c0000000c000000LL}; 599 const vector unsigned char resp_err_check = 600 (vector unsigned char)(vector unsigned long){ 601 0xe0000000e0000000LL, 0xe0000000e0000000LL}; 602 #ifdef MLX5_PMD_SOFT_COUNTERS 603 uint32_t rcvd_byte = 0; 604 /* Mask to shuffle byte_cnt to add up stats. Do bswap16 for all. */ 605 const vector unsigned char len_shuf_mask = (vector unsigned char){ 606 1, 0, 5, 4, 607 9, 8, 13, 12, 608 -1, -1, -1, -1, 609 -1, -1, -1, -1}; 610 #endif 611 /* Mask to shuffle from extracted CQE to mbuf. */ 612 const vector unsigned char shuf_mask = (vector unsigned char){ 613 5, 4, /* bswap16, pkt_len */ 614 -1, -1, /* zero out 2nd half of pkt_len */ 615 5, 4, /* bswap16, data_len */ 616 11, 10, /* bswap16, vlan+tci */ 617 15, 14, 13, 12, /* bswap32, rss */ 618 1, 2, 3, -1}; /* fdir.hi */ 619 /* Mask to blend from the last Qword to the first DQword. */ 620 /* Mask to blend from the last Qword to the first DQword. */ 621 const vector unsigned char blend_mask = (vector unsigned char){ 622 -1, 0, 0, 0, 623 0, 0, 0, 0, 624 -1, -1, -1, -1, 625 -1, -1, -1, -1}; 626 const vector unsigned char crc_adj = 627 (vector unsigned char)(vector unsigned short){ 628 rxq->crc_present * RTE_ETHER_CRC_LEN, 0, 629 rxq->crc_present * RTE_ETHER_CRC_LEN, 0, 0, 0, 0, 0}; 630 const vector unsigned char flow_mark_adj = 631 (vector unsigned char)(vector unsigned int){ 632 0, 0, 0, rxq->mark * (-1)}; 633 const vector unsigned short cqe_sel_mask1 = 634 (vector unsigned short){0, 0, 0, 0, 0xffff, 0xffff, 0, 0}; 635 const vector unsigned short cqe_sel_mask2 = 636 (vector unsigned short){0, 0, 0xffff, 0, 0, 0, 0, 0}; 637 638 MLX5_ASSERT(rxq->sges_n == 0); 639 MLX5_ASSERT(rxq->cqe_n == rxq->elts_n); 640 cq = &(*rxq->cqes)[cq_idx]; 641 rte_prefetch0(cq); 642 rte_prefetch0(cq + 1); 643 rte_prefetch0(cq + 2); 644 rte_prefetch0(cq + 3); 645 pkts_n = RTE_MIN(pkts_n, MLX5_VPMD_RX_MAX_BURST); 646 647 repl_n = q_n - (rxq->rq_ci - rxq->rq_pi); 648 if (repl_n >= rxq->rq_repl_thresh) 649 mlx5_rx_replenish_bulk_mbuf(rxq, repl_n); 650 /* See if there're unreturned mbufs from compressed CQE. */ 651 rcvd_pkt = rxq->decompressed; 652 if (rcvd_pkt > 0) { 653 rcvd_pkt = RTE_MIN(rcvd_pkt, pkts_n); 654 rxq_copy_mbuf_v(rxq, pkts, rcvd_pkt); 655 rxq->rq_pi += rcvd_pkt; 656 rxq->decompressed -= rcvd_pkt; 657 pkts += rcvd_pkt; 658 } 659 elts_idx = rxq->rq_pi & q_mask; 660 elts = &(*rxq->elts)[elts_idx]; 661 /* Not to overflow pkts array. */ 662 pkts_n = RTE_ALIGN_FLOOR(pkts_n - rcvd_pkt, MLX5_VPMD_DESCS_PER_LOOP); 663 /* Not to cross queue end. */ 664 pkts_n = RTE_MIN(pkts_n, q_n - elts_idx); 665 pkts_n = RTE_MIN(pkts_n, q_n - cq_idx); 666 if (!pkts_n) 667 return rcvd_pkt; 668 /* At this point, there shouldn't be any remaining packets. */ 669 MLX5_ASSERT(rxq->decompressed == 0); 670 671 /* 672 * A. load first Qword (8bytes) in one loop. 673 * B. copy 4 mbuf pointers from elts ring to returing pkts. 674 * C. load remaining CQE data and extract necessary fields. 675 * Final 16bytes cqes[] extracted from original 64bytes CQE has the 676 * following structure: 677 * struct { 678 * uint8_t pkt_info; 679 * uint8_t flow_tag[3]; 680 * uint16_t byte_cnt; 681 * uint8_t rsvd4; 682 * uint8_t op_own; 683 * uint16_t hdr_type_etc; 684 * uint16_t vlan_info; 685 * uint32_t rx_has_res; 686 * } c; 687 * D. fill in mbuf. 688 * E. get valid CQEs. 689 * F. find compressed CQE. 690 */ 691 for (pos = 0; 692 pos < pkts_n; 693 pos += MLX5_VPMD_DESCS_PER_LOOP) { 694 vector unsigned char cqes[MLX5_VPMD_DESCS_PER_LOOP]; 695 vector unsigned char cqe_tmp1, cqe_tmp2; 696 vector unsigned char pkt_mb0, pkt_mb1, pkt_mb2, pkt_mb3; 697 vector unsigned char op_own, op_own_tmp1, op_own_tmp2; 698 vector unsigned char opcode, owner_mask, invalid_mask; 699 vector unsigned char comp_mask; 700 vector unsigned char mask; 701 #ifdef MLX5_PMD_SOFT_COUNTERS 702 const vector unsigned char lower_half = { 703 0, 1, 4, 5, 8, 9, 12, 13, 704 16, 17, 20, 21, 24, 25, 28, 29}; 705 const vector unsigned char upper_half = { 706 2, 3, 6, 7, 10, 11, 14, 15, 707 18, 19, 22, 23, 26, 27, 30, 31}; 708 const vector unsigned long shmax = {64, 64}; 709 vector unsigned char byte_cnt; 710 vector unsigned short left, right; 711 vector unsigned long lshift; 712 vector __attribute__((altivec(bool__))) 713 unsigned long shmask; 714 #endif 715 vector unsigned char mbp1, mbp2; 716 vector unsigned char p = 717 (vector unsigned char)(vector unsigned short){ 718 0, 1, 2, 3, 0, 0, 0, 0}; 719 unsigned int p1, p2, p3; 720 721 /* Prefetch next 4 CQEs. */ 722 if (pkts_n - pos >= 2 * MLX5_VPMD_DESCS_PER_LOOP) { 723 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP]); 724 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 1]); 725 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 2]); 726 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 3]); 727 } 728 729 /* A.0 do not cross the end of CQ. */ 730 mask = (vector unsigned char)(vector unsigned long){ 731 (pkts_n - pos) * sizeof(uint16_t) * 8, 0}; 732 733 { 734 vector unsigned long lshift; 735 vector __attribute__((altivec(bool__))) 736 unsigned long shmask; 737 const vector unsigned long shmax = {64, 64}; 738 739 lshift = vec_splat((vector unsigned long)mask, 0); 740 shmask = vec_cmpgt(shmax, lshift); 741 mask = (vector unsigned char) 742 vec_sl((vector unsigned long)ones, lshift); 743 mask = (vector unsigned char) 744 vec_sel((vector unsigned long)shmask, 745 (vector unsigned long)mask, shmask); 746 } 747 748 p = (vector unsigned char) 749 vec_andc((vector unsigned long)p, 750 (vector unsigned long)mask); 751 752 /* A.1 load cqes. */ 753 p3 = (unsigned int)((vector unsigned short)p)[3]; 754 cqes[3] = (vector unsigned char)(vector unsigned long){ 755 *(__rte_aligned(8) unsigned long *) 756 &cq[pos + p3].sop_drop_qpn, 0LL}; 757 rte_compiler_barrier(); 758 759 p2 = (unsigned int)((vector unsigned short)p)[2]; 760 cqes[2] = (vector unsigned char)(vector unsigned long){ 761 *(__rte_aligned(8) unsigned long *) 762 &cq[pos + p2].sop_drop_qpn, 0LL}; 763 rte_compiler_barrier(); 764 765 /* B.1 load mbuf pointers. */ 766 mbp1 = (vector unsigned char)vec_vsx_ld(0, 767 (signed int const *)&elts[pos]); 768 mbp2 = (vector unsigned char)vec_vsx_ld(0, 769 (signed int const *)&elts[pos + 2]); 770 771 /* A.1 load a block having op_own. */ 772 p1 = (unsigned int)((vector unsigned short)p)[1]; 773 cqes[1] = (vector unsigned char)(vector unsigned long){ 774 *(__rte_aligned(8) unsigned long *) 775 &cq[pos + p1].sop_drop_qpn, 0LL}; 776 rte_compiler_barrier(); 777 778 cqes[0] = (vector unsigned char)(vector unsigned long){ 779 *(__rte_aligned(8) unsigned long *) 780 &cq[pos].sop_drop_qpn, 0LL}; 781 rte_compiler_barrier(); 782 783 /* B.2 copy mbuf pointers. */ 784 *(vector unsigned char *)&pkts[pos] = mbp1; 785 *(vector unsigned char *)&pkts[pos + 2] = mbp2; 786 rte_cio_rmb(); 787 788 /* C.1 load remaining CQE data and extract necessary fields. */ 789 cqe_tmp2 = *(vector unsigned char *) 790 &cq[pos + p3].pkt_info; 791 cqe_tmp1 = *(vector unsigned char *) 792 &cq[pos + p2].pkt_info; 793 cqes[3] = vec_sel(cqes[3], cqe_tmp2, blend_mask); 794 cqes[2] = vec_sel(cqes[2], cqe_tmp1, blend_mask); 795 cqe_tmp2 = (vector unsigned char)vec_vsx_ld(0, 796 (signed int const *)&cq[pos + p3].csum); 797 cqe_tmp1 = (vector unsigned char)vec_vsx_ld(0, 798 (signed int const *)&cq[pos + p2].csum); 799 cqes[3] = (vector unsigned char) 800 vec_sel((vector unsigned short)cqes[3], 801 (vector unsigned short)cqe_tmp2, cqe_sel_mask1); 802 cqes[2] = (vector unsigned char) 803 vec_sel((vector unsigned short)cqes[2], 804 (vector unsigned short)cqe_tmp1, cqe_sel_mask1); 805 cqe_tmp2 = (vector unsigned char)(vector unsigned long){ 806 *(__rte_aligned(8) unsigned long *) 807 &cq[pos + p3].rsvd3[9], 0LL}; 808 cqe_tmp1 = (vector unsigned char)(vector unsigned long){ 809 *(__rte_aligned(8) unsigned long *) 810 &cq[pos + p2].rsvd3[9], 0LL}; 811 cqes[3] = (vector unsigned char) 812 vec_sel((vector unsigned short)cqes[3], 813 (vector unsigned short)cqe_tmp2, 814 (vector unsigned short)cqe_sel_mask2); 815 cqes[2] = (vector unsigned char) 816 vec_sel((vector unsigned short)cqes[2], 817 (vector unsigned short)cqe_tmp1, 818 (vector unsigned short)cqe_sel_mask2); 819 820 /* C.2 generate final structure for mbuf with swapping bytes. */ 821 pkt_mb3 = vec_perm(cqes[3], zero, shuf_mask); 822 pkt_mb2 = vec_perm(cqes[2], zero, shuf_mask); 823 824 /* C.3 adjust CRC length. */ 825 pkt_mb3 = (vector unsigned char) 826 ((vector unsigned short)pkt_mb3 - 827 (vector unsigned short)crc_adj); 828 pkt_mb2 = (vector unsigned char) 829 ((vector unsigned short)pkt_mb2 - 830 (vector unsigned short)crc_adj); 831 832 /* C.4 adjust flow mark. */ 833 pkt_mb3 = (vector unsigned char) 834 ((vector unsigned int)pkt_mb3 + 835 (vector unsigned int)flow_mark_adj); 836 pkt_mb2 = (vector unsigned char) 837 ((vector unsigned int)pkt_mb2 + 838 (vector unsigned int)flow_mark_adj); 839 840 /* D.1 fill in mbuf - rx_descriptor_fields1. */ 841 *(vector unsigned char *) 842 &pkts[pos + 3]->pkt_len = pkt_mb3; 843 *(vector unsigned char *) 844 &pkts[pos + 2]->pkt_len = pkt_mb2; 845 846 /* E.1 extract op_own field. */ 847 op_own_tmp2 = (vector unsigned char) 848 vec_mergeh((vector unsigned int)cqes[2], 849 (vector unsigned int)cqes[3]); 850 851 /* C.1 load remaining CQE data and extract necessary fields. */ 852 cqe_tmp2 = *(vector unsigned char *) 853 &cq[pos + p1].pkt_info; 854 cqe_tmp1 = *(vector unsigned char *) 855 &cq[pos].pkt_info; 856 cqes[1] = vec_sel(cqes[1], cqe_tmp2, blend_mask); 857 cqes[0] = vec_sel(cqes[0], cqe_tmp2, blend_mask); 858 cqe_tmp2 = (vector unsigned char)vec_vsx_ld(0, 859 (signed int const *)&cq[pos + p1].csum); 860 cqe_tmp1 = (vector unsigned char)vec_vsx_ld(0, 861 (signed int const *)&cq[pos].csum); 862 cqes[1] = (vector unsigned char) 863 vec_sel((vector unsigned short)cqes[1], 864 (vector unsigned short)cqe_tmp2, cqe_sel_mask1); 865 cqes[0] = (vector unsigned char) 866 vec_sel((vector unsigned short)cqes[0], 867 (vector unsigned short)cqe_tmp1, cqe_sel_mask1); 868 cqe_tmp2 = (vector unsigned char)(vector unsigned long){ 869 *(__rte_aligned(8) unsigned long *) 870 &cq[pos + p1].rsvd3[9], 0LL}; 871 cqe_tmp1 = (vector unsigned char)(vector unsigned long){ 872 *(__rte_aligned(8) unsigned long *) 873 &cq[pos].rsvd3[9], 0LL}; 874 cqes[1] = (vector unsigned char) 875 vec_sel((vector unsigned short)cqes[1], 876 (vector unsigned short)cqe_tmp2, cqe_sel_mask2); 877 cqes[0] = (vector unsigned char) 878 vec_sel((vector unsigned short)cqes[0], 879 (vector unsigned short)cqe_tmp1, cqe_sel_mask2); 880 881 /* C.2 generate final structure for mbuf with swapping bytes. */ 882 pkt_mb1 = vec_perm(cqes[1], zero, shuf_mask); 883 pkt_mb0 = vec_perm(cqes[0], zero, shuf_mask); 884 885 /* C.3 adjust CRC length. */ 886 pkt_mb1 = (vector unsigned char) 887 ((vector unsigned short)pkt_mb1 - 888 (vector unsigned short)crc_adj); 889 pkt_mb0 = (vector unsigned char) 890 ((vector unsigned short)pkt_mb0 - 891 (vector unsigned short)crc_adj); 892 893 /* C.4 adjust flow mark. */ 894 pkt_mb1 = (vector unsigned char) 895 ((vector unsigned int)pkt_mb1 + 896 (vector unsigned int)flow_mark_adj); 897 pkt_mb0 = (vector unsigned char) 898 ((vector unsigned int)pkt_mb0 + 899 (vector unsigned int)flow_mark_adj); 900 901 /* E.1 extract op_own byte. */ 902 op_own_tmp1 = (vector unsigned char) 903 vec_mergeh((vector unsigned int)cqes[0], 904 (vector unsigned int)cqes[1]); 905 op_own = (vector unsigned char) 906 vec_mergel((vector unsigned long)op_own_tmp1, 907 (vector unsigned long)op_own_tmp2); 908 909 /* D.1 fill in mbuf - rx_descriptor_fields1. */ 910 *(vector unsigned char *) 911 &pkts[pos + 1]->pkt_len = pkt_mb1; 912 *(vector unsigned char *) 913 &pkts[pos]->pkt_len = pkt_mb0; 914 915 /* E.2 flip owner bit to mark CQEs from last round. */ 916 owner_mask = (vector unsigned char) 917 vec_and((vector unsigned long)op_own, 918 (vector unsigned long)owner_check); 919 if (ownership) 920 owner_mask = (vector unsigned char) 921 vec_xor((vector unsigned long)owner_mask, 922 (vector unsigned long)owner_check); 923 owner_mask = (vector unsigned char) 924 vec_cmpeq((vector unsigned int)owner_mask, 925 (vector unsigned int)owner_check); 926 owner_mask = (vector unsigned char) 927 vec_packs((vector unsigned int)owner_mask, 928 (vector unsigned int)zero); 929 930 /* E.3 get mask for invalidated CQEs. */ 931 opcode = (vector unsigned char) 932 vec_and((vector unsigned long)op_own, 933 (vector unsigned long)opcode_check); 934 invalid_mask = (vector unsigned char) 935 vec_cmpeq((vector unsigned int)opcode_check, 936 (vector unsigned int)opcode); 937 invalid_mask = (vector unsigned char) 938 vec_packs((vector unsigned int)invalid_mask, 939 (vector unsigned int)zero); 940 941 /* E.4 mask out beyond boundary. */ 942 invalid_mask = (vector unsigned char) 943 vec_or((vector unsigned long)invalid_mask, 944 (vector unsigned long)mask); 945 946 /* E.5 merge invalid_mask with invalid owner. */ 947 invalid_mask = (vector unsigned char) 948 vec_or((vector unsigned long)invalid_mask, 949 (vector unsigned long)owner_mask); 950 951 /* F.1 find compressed CQE format. */ 952 comp_mask = (vector unsigned char) 953 vec_and((vector unsigned long)op_own, 954 (vector unsigned long)format_check); 955 comp_mask = (vector unsigned char) 956 vec_cmpeq((vector unsigned int)comp_mask, 957 (vector unsigned int)format_check); 958 comp_mask = (vector unsigned char) 959 vec_packs((vector unsigned int)comp_mask, 960 (vector unsigned int)zero); 961 962 /* F.2 mask out invalid entries. */ 963 comp_mask = (vector unsigned char) 964 vec_andc((vector unsigned long)comp_mask, 965 (vector unsigned long)invalid_mask); 966 comp_idx = ((vector unsigned long)comp_mask)[0]; 967 968 /* F.3 get the first compressed CQE. */ 969 comp_idx = comp_idx ? __builtin_ctzll(comp_idx) / 970 (sizeof(uint16_t) * 8) : MLX5_VPMD_DESCS_PER_LOOP; 971 972 /* E.6 mask out entries after the compressed CQE. */ 973 mask = (vector unsigned char)(vector unsigned long){ 974 (comp_idx * sizeof(uint16_t) * 8), 0}; 975 lshift = vec_splat((vector unsigned long)mask, 0); 976 shmask = vec_cmpgt(shmax, lshift); 977 mask = (vector unsigned char) 978 vec_sl((vector unsigned long)ones, lshift); 979 mask = (vector unsigned char) 980 vec_sel((vector unsigned long)shmask, 981 (vector unsigned long)mask, shmask); 982 invalid_mask = (vector unsigned char) 983 vec_or((vector unsigned long)invalid_mask, 984 (vector unsigned long)mask); 985 986 /* E.7 count non-compressed valid CQEs. */ 987 n = ((vector unsigned long)invalid_mask)[0]; 988 n = n ? __builtin_ctzll(n) / (sizeof(uint16_t) * 8) : 989 MLX5_VPMD_DESCS_PER_LOOP; 990 nocmp_n += n; 991 992 /* D.2 get the final invalid mask. */ 993 mask = (vector unsigned char)(vector unsigned long){ 994 (n * sizeof(uint16_t) * 8), 0}; 995 lshift = vec_splat((vector unsigned long)mask, 0); 996 shmask = vec_cmpgt(shmax, lshift); 997 mask = (vector unsigned char) 998 vec_sl((vector unsigned long)ones, lshift); 999 mask = (vector unsigned char) 1000 vec_sel((vector unsigned long)shmask, 1001 (vector unsigned long)mask, shmask); 1002 invalid_mask = (vector unsigned char) 1003 vec_or((vector unsigned long)invalid_mask, 1004 (vector unsigned long)mask); 1005 1006 /* D.3 check error in opcode. */ 1007 opcode = (vector unsigned char) 1008 vec_cmpeq((vector unsigned int)resp_err_check, 1009 (vector unsigned int)opcode); 1010 opcode = (vector unsigned char) 1011 vec_packs((vector unsigned int)opcode, 1012 (vector unsigned int)zero); 1013 opcode = (vector unsigned char) 1014 vec_andc((vector unsigned long)opcode, 1015 (vector unsigned long)invalid_mask); 1016 1017 /* D.4 mark if any error is set */ 1018 *err |= ((vector unsigned long)opcode)[0]; 1019 1020 /* D.5 fill in mbuf - rearm_data and packet_type. */ 1021 rxq_cq_to_ptype_oflags_v(rxq, cqes, opcode, &pkts[pos]); 1022 if (rxq->hw_timestamp) { 1023 pkts[pos]->timestamp = 1024 rte_be_to_cpu_64(cq[pos].timestamp); 1025 pkts[pos + 1]->timestamp = 1026 rte_be_to_cpu_64(cq[pos + p1].timestamp); 1027 pkts[pos + 2]->timestamp = 1028 rte_be_to_cpu_64(cq[pos + p2].timestamp); 1029 pkts[pos + 3]->timestamp = 1030 rte_be_to_cpu_64(cq[pos + p3].timestamp); 1031 } 1032 if (rxq->dynf_meta) { 1033 uint64_t flag = rxq->flow_meta_mask; 1034 int32_t offs = rxq->flow_meta_offset; 1035 uint32_t metadata; 1036 1037 /* This code is subject for futher optimization. */ 1038 metadata = cq[pos].flow_table_metadata; 1039 *RTE_MBUF_DYNFIELD(pkts[pos], offs, uint32_t *) = 1040 metadata; 1041 pkts[pos]->ol_flags |= metadata ? flag : 0ULL; 1042 metadata = cq[pos + 1].flow_table_metadata; 1043 *RTE_MBUF_DYNFIELD(pkts[pos + 1], offs, uint32_t *) = 1044 metadata; 1045 pkts[pos + 1]->ol_flags |= metadata ? flag : 0ULL; 1046 metadata = cq[pos + 2].flow_table_metadata; 1047 *RTE_MBUF_DYNFIELD(pkts[pos + 2], offs, uint32_t *) = 1048 metadata; 1049 pkts[pos + 2]->ol_flags |= metadata ? flag : 0ULL; 1050 metadata = cq[pos + 3].flow_table_metadata; 1051 *RTE_MBUF_DYNFIELD(pkts[pos + 3], offs, uint32_t *) = 1052 metadata; 1053 pkts[pos + 3]->ol_flags |= metadata ? flag : 0ULL; 1054 } 1055 #ifdef MLX5_PMD_SOFT_COUNTERS 1056 /* Add up received bytes count. */ 1057 byte_cnt = vec_perm(op_own, zero, len_shuf_mask); 1058 byte_cnt = (vector unsigned char) 1059 vec_andc((vector unsigned long)byte_cnt, 1060 (vector unsigned long)invalid_mask); 1061 left = vec_perm((vector unsigned short)byte_cnt, 1062 (vector unsigned short)zero, lower_half); 1063 right = vec_perm((vector unsigned short)byte_cnt, 1064 (vector unsigned short)zero, upper_half); 1065 byte_cnt = (vector unsigned char)vec_add(left, right); 1066 left = vec_perm((vector unsigned short)byte_cnt, 1067 (vector unsigned short)zero, lower_half); 1068 right = vec_perm((vector unsigned short)byte_cnt, 1069 (vector unsigned short)zero, upper_half); 1070 byte_cnt = (vector unsigned char)vec_add(left, right); 1071 rcvd_byte += ((vector unsigned long)byte_cnt)[0]; 1072 #endif 1073 1074 /* 1075 * Break the loop unless more valid CQE is expected, or if 1076 * there's a compressed CQE. 1077 */ 1078 if (n != MLX5_VPMD_DESCS_PER_LOOP) 1079 break; 1080 } 1081 /* If no new CQE seen, return without updating cq_db. */ 1082 if (unlikely(!nocmp_n && comp_idx == MLX5_VPMD_DESCS_PER_LOOP)) 1083 return rcvd_pkt; 1084 /* Update the consumer indexes for non-compressed CQEs. */ 1085 MLX5_ASSERT(nocmp_n <= pkts_n); 1086 rxq->cq_ci += nocmp_n; 1087 rxq->rq_pi += nocmp_n; 1088 rcvd_pkt += nocmp_n; 1089 #ifdef MLX5_PMD_SOFT_COUNTERS 1090 rxq->stats.ipackets += nocmp_n; 1091 rxq->stats.ibytes += rcvd_byte; 1092 #endif 1093 /* Decompress the last CQE if compressed. */ 1094 if (comp_idx < MLX5_VPMD_DESCS_PER_LOOP && comp_idx == n) { 1095 MLX5_ASSERT(comp_idx == (nocmp_n % MLX5_VPMD_DESCS_PER_LOOP)); 1096 rxq->decompressed = 1097 rxq_cq_decompress_v(rxq, &cq[nocmp_n], &elts[nocmp_n]); 1098 /* Return more packets if needed. */ 1099 if (nocmp_n < pkts_n) { 1100 uint16_t n = rxq->decompressed; 1101 1102 n = RTE_MIN(n, pkts_n - nocmp_n); 1103 rxq_copy_mbuf_v(rxq, &pkts[nocmp_n], n); 1104 rxq->rq_pi += n; 1105 rcvd_pkt += n; 1106 rxq->decompressed -= n; 1107 } 1108 } 1109 rte_compiler_barrier(); 1110 *rxq->cq_db = rte_cpu_to_be_32(rxq->cq_ci); 1111 return rcvd_pkt; 1112 } 1113 1114 #endif /* RTE_PMD_MLX5_RXTX_VEC_ALTIVEC_H_ */ 1115