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