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 <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 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)vec_vsx_ld 348 (0, (vector unsigned char *)&rxq->mbuf_initializer); 349 const vector unsigned short rearm_sel_mask = 350 (vector unsigned short){0, 0, 0, 0, 0xffff, 0xffff, 0, 0}; 351 vector unsigned char rearm0, rearm1, rearm2, rearm3; 352 uint8_t pt_idx0, pt_idx1, pt_idx2, pt_idx3; 353 354 /* Extract pkt_info field. */ 355 pinfo0 = (vector unsigned char) 356 vec_mergeh((vector unsigned int)cqes[0], 357 (vector unsigned int)cqes[1]); 358 pinfo1 = (vector unsigned char) 359 vec_mergeh((vector unsigned int)cqes[2], 360 (vector unsigned int)cqes[3]); 361 pinfo = (vector unsigned char) 362 vec_mergeh((vector unsigned long)pinfo0, 363 (vector unsigned long)pinfo1); 364 365 /* Extract hdr_type_etc field. */ 366 pinfo0 = (vector unsigned char) 367 vec_mergel((vector unsigned int)cqes[0], 368 (vector unsigned int)cqes[1]); 369 pinfo1 = (vector unsigned char) 370 vec_mergel((vector unsigned int)cqes[2], 371 (vector unsigned int)cqes[3]); 372 ptype = (vector unsigned char) 373 vec_mergeh((vector unsigned long)pinfo0, 374 (vector unsigned long)pinfo1); 375 376 if (rxq->mark) { 377 const vector unsigned char pinfo_ft_mask = 378 (vector unsigned char)(vector unsigned int){ 379 0xffffff00, 0xffffff00, 0xffffff00, 0xffffff00}; 380 const vector unsigned char fdir_flags = 381 (vector unsigned char)(vector unsigned int){ 382 PKT_RX_FDIR, PKT_RX_FDIR, 383 PKT_RX_FDIR, PKT_RX_FDIR}; 384 vector unsigned char fdir_id_flags = 385 (vector unsigned char)(vector unsigned int){ 386 PKT_RX_FDIR_ID, PKT_RX_FDIR_ID, 387 PKT_RX_FDIR_ID, PKT_RX_FDIR_ID}; 388 vector unsigned char flow_tag, invalid_mask; 389 390 flow_tag = (vector unsigned char) 391 vec_and((vector unsigned long)pinfo, 392 (vector unsigned long)pinfo_ft_mask); 393 394 /* Check if flow tag is non-zero then set PKT_RX_FDIR. */ 395 invalid_mask = (vector unsigned char) 396 vec_cmpeq((vector unsigned int)flow_tag, 397 (vector unsigned int)zero); 398 ol_flags = (vector unsigned char) 399 vec_or((vector unsigned long)ol_flags, 400 (vector unsigned long) 401 vec_andc((vector unsigned long)fdir_flags, 402 (vector unsigned long)invalid_mask)); 403 404 /* Mask out invalid entries. */ 405 fdir_id_flags = (vector unsigned char) 406 vec_andc((vector unsigned long)fdir_id_flags, 407 (vector unsigned long)invalid_mask); 408 409 /* Check if flow tag MLX5_FLOW_MARK_DEFAULT. */ 410 ol_flags = (vector unsigned char) 411 vec_or((vector unsigned long)ol_flags, 412 (vector unsigned long) 413 vec_andc((vector unsigned long)fdir_id_flags, 414 (vector unsigned long) 415 vec_cmpeq((vector unsigned int)flow_tag, 416 (vector unsigned int)pinfo_ft_mask))); 417 } 418 /* 419 * Merge the two fields to generate the following: 420 * bit[1] = l3_ok 421 * bit[2] = l4_ok 422 * bit[8] = cv 423 * bit[11:10] = l3_hdr_type 424 * bit[14:12] = l4_hdr_type 425 * bit[15] = ip_frag 426 * bit[16] = tunneled 427 * bit[17] = outer_l3_type 428 */ 429 ptype = (vector unsigned char) 430 vec_and((vector unsigned long)ptype, 431 (vector unsigned long)ptype_mask); 432 pinfo = (vector unsigned char) 433 vec_and((vector unsigned long)pinfo, 434 (vector unsigned long)pinfo_mask); 435 pinfo = (vector unsigned char) 436 vec_sl((vector unsigned int)pinfo, 437 (vector unsigned int){16, 16, 16, 16}); 438 439 /* Make pinfo has merged fields for ol_flags calculation. */ 440 pinfo = (vector unsigned char) 441 vec_or((vector unsigned long)ptype, 442 (vector unsigned long)pinfo); 443 ptype = (vector unsigned char) 444 vec_sr((vector unsigned int)pinfo, 445 (vector unsigned int){10, 10, 10, 10}); 446 ptype = (vector unsigned char) 447 vec_packs((vector unsigned int)ptype, 448 (vector unsigned int)zero); 449 450 /* Errored packets will have RTE_PTYPE_ALL_MASK. */ 451 op_err = (vector unsigned char) 452 vec_sr((vector unsigned short)op_err, 453 (vector unsigned short){8, 8, 8, 8, 8, 8, 8, 8}); 454 ptype = (vector unsigned char) 455 vec_or((vector unsigned long)ptype, 456 (vector unsigned long)op_err); 457 458 pt_idx0 = (uint8_t)((vector unsigned char)ptype)[0]; 459 pt_idx1 = (uint8_t)((vector unsigned char)ptype)[2]; 460 pt_idx2 = (uint8_t)((vector unsigned char)ptype)[4]; 461 pt_idx3 = (uint8_t)((vector unsigned char)ptype)[6]; 462 463 pkts[0]->packet_type = mlx5_ptype_table[pt_idx0] | 464 !!(pt_idx0 & (1 << 6)) * rxq->tunnel; 465 pkts[1]->packet_type = mlx5_ptype_table[pt_idx1] | 466 !!(pt_idx1 & (1 << 6)) * rxq->tunnel; 467 pkts[2]->packet_type = mlx5_ptype_table[pt_idx2] | 468 !!(pt_idx2 & (1 << 6)) * rxq->tunnel; 469 pkts[3]->packet_type = mlx5_ptype_table[pt_idx3] | 470 !!(pt_idx3 & (1 << 6)) * rxq->tunnel; 471 472 /* Fill flags for checksum and VLAN. */ 473 pinfo = (vector unsigned char) 474 vec_and((vector unsigned long)pinfo, 475 (vector unsigned long)ptype_ol_mask); 476 pinfo = vec_perm(cv_flag_sel, zero, pinfo); 477 478 /* Locate checksum flags at byte[2:1] and merge with VLAN flags. */ 479 cv_flags = (vector unsigned char) 480 vec_sl((vector unsigned int)pinfo, 481 (vector unsigned int){9, 9, 9, 9}); 482 cv_flags = (vector unsigned char) 483 vec_or((vector unsigned long)pinfo, 484 (vector unsigned long)cv_flags); 485 486 /* Move back flags to start from byte[0]. */ 487 cv_flags = (vector unsigned char) 488 vec_sr((vector unsigned int)cv_flags, 489 (vector unsigned int){8, 8, 8, 8}); 490 491 /* Mask out garbage bits. */ 492 cv_flags = (vector unsigned char) 493 vec_and((vector unsigned long)cv_flags, 494 (vector unsigned long)cv_mask); 495 496 /* Merge to ol_flags. */ 497 ol_flags = (vector unsigned char) 498 vec_or((vector unsigned long)ol_flags, 499 (vector unsigned long)cv_flags); 500 501 /* Merge mbuf_init and ol_flags. */ 502 rearm0 = (vector unsigned char) 503 vec_sel((vector unsigned short)mbuf_init, 504 (vector unsigned short) 505 vec_slo((vector unsigned short)ol_flags, 506 (vector unsigned char){64}), rearm_sel_mask); 507 rearm1 = (vector unsigned char) 508 vec_sel((vector unsigned short)mbuf_init, 509 (vector unsigned short) 510 vec_slo((vector unsigned short)ol_flags, 511 (vector unsigned char){32}), rearm_sel_mask); 512 rearm2 = (vector unsigned char) 513 vec_sel((vector unsigned short)mbuf_init, 514 (vector unsigned short)ol_flags, rearm_sel_mask); 515 rearm3 = (vector unsigned char) 516 vec_sel((vector unsigned short)mbuf_init, 517 (vector unsigned short) 518 vec_sro((vector unsigned short)ol_flags, 519 (vector unsigned char){32}), rearm_sel_mask); 520 521 /* Write 8B rearm_data and 8B ol_flags. */ 522 vec_vsx_st(rearm0, 0, 523 (vector unsigned char *)&pkts[0]->rearm_data); 524 vec_vsx_st(rearm1, 0, 525 (vector unsigned char *)&pkts[1]->rearm_data); 526 vec_vsx_st(rearm2, 0, 527 (vector unsigned char *)&pkts[2]->rearm_data); 528 vec_vsx_st(rearm3, 0, 529 (vector unsigned char *)&pkts[3]->rearm_data); 530 } 531 532 533 /** 534 * Receive burst of packets. An errored completion also consumes a mbuf, but the 535 * packet_type is set to be RTE_PTYPE_ALL_MASK. Marked mbufs should be freed 536 * before returning to application. 537 * 538 * @param rxq 539 * Pointer to RX queue structure. 540 * @param[out] pkts 541 * Array to store received packets. 542 * @param pkts_n 543 * Maximum number of packets in array. 544 * @param[out] err 545 * Pointer to a flag. Set non-zero value if pkts array has at least one error 546 * packet to handle. 547 * 548 * @return 549 * Number of packets received including errors (<= pkts_n). 550 */ 551 static inline uint16_t 552 rxq_burst_v(struct mlx5_rxq_data *rxq, struct rte_mbuf **pkts, uint16_t pkts_n, 553 uint64_t *err) 554 { 555 const uint16_t q_n = 1 << rxq->cqe_n; 556 const uint16_t q_mask = q_n - 1; 557 volatile struct mlx5_cqe *cq; 558 struct rte_mbuf **elts; 559 unsigned int pos; 560 uint64_t n; 561 uint16_t repl_n; 562 uint64_t comp_idx = MLX5_VPMD_DESCS_PER_LOOP; 563 uint16_t nocmp_n = 0; 564 uint16_t rcvd_pkt = 0; 565 unsigned int cq_idx = rxq->cq_ci & q_mask; 566 unsigned int elts_idx; 567 unsigned int ownership = !!(rxq->cq_ci & (q_mask + 1)); 568 const vector unsigned char zero = (vector unsigned char){0}; 569 const vector unsigned char ones = vec_splat_u8(-1); 570 const vector unsigned char owner_check = 571 (vector unsigned char)(vector unsigned long){ 572 0x0100000001000000LL, 0x0100000001000000LL}; 573 const vector unsigned char opcode_check = 574 (vector unsigned char)(vector unsigned long){ 575 0xf0000000f0000000LL, 0xf0000000f0000000LL}; 576 const vector unsigned char format_check = 577 (vector unsigned char)(vector unsigned long){ 578 0x0c0000000c000000LL, 0x0c0000000c000000LL}; 579 const vector unsigned char resp_err_check = 580 (vector unsigned char)(vector unsigned long){ 581 0xe0000000e0000000LL, 0xe0000000e0000000LL}; 582 #ifdef MLX5_PMD_SOFT_COUNTERS 583 uint32_t rcvd_byte = 0; 584 /* Mask to shuffle byte_cnt to add up stats. Do bswap16 for all. */ 585 const vector unsigned char len_shuf_mask = (vector unsigned char){ 586 1, 0, 5, 4, 587 9, 8, 13, 12, 588 -1, -1, -1, -1, 589 -1, -1, -1, -1}; 590 #endif 591 /* Mask to shuffle from extracted CQE to mbuf. */ 592 const vector unsigned char shuf_mask = (vector unsigned char){ 593 5, 4, /* bswap16, pkt_len */ 594 -1, -1, /* zero out 2nd half of pkt_len */ 595 5, 4, /* bswap16, data_len */ 596 11, 10, /* bswap16, vlan+tci */ 597 15, 14, 13, 12, /* bswap32, rss */ 598 1, 2, 3, -1}; /* fdir.hi */ 599 /* Mask to blend from the last Qword to the first DQword. */ 600 /* Mask to blend from the last Qword to the first DQword. */ 601 const vector unsigned char blend_mask = (vector unsigned char){ 602 -1, 0, 0, 0, 603 0, 0, 0, 0, 604 -1, -1, -1, -1, 605 -1, -1, -1, -1}; 606 const vector unsigned char crc_adj = 607 (vector unsigned char)(vector unsigned short){ 608 rxq->crc_present * RTE_ETHER_CRC_LEN, 0, 609 rxq->crc_present * RTE_ETHER_CRC_LEN, 0, 0, 0, 0, 0}; 610 const vector unsigned char flow_mark_adj = 611 (vector unsigned char)(vector unsigned int){ 612 0, 0, 0, rxq->mark * (-1)}; 613 const vector unsigned short cqe_sel_mask1 = 614 (vector unsigned short){0, 0, 0, 0, 0xffff, 0xffff, 0, 0}; 615 const vector unsigned short cqe_sel_mask2 = 616 (vector unsigned short){0, 0, 0xffff, 0, 0, 0, 0, 0}; 617 618 MLX5_ASSERT(rxq->sges_n == 0); 619 MLX5_ASSERT(rxq->cqe_n == rxq->elts_n); 620 cq = &(*rxq->cqes)[cq_idx]; 621 rte_prefetch0(cq); 622 rte_prefetch0(cq + 1); 623 rte_prefetch0(cq + 2); 624 rte_prefetch0(cq + 3); 625 pkts_n = RTE_MIN(pkts_n, MLX5_VPMD_RX_MAX_BURST); 626 627 repl_n = q_n - (rxq->rq_ci - rxq->rq_pi); 628 if (repl_n >= rxq->rq_repl_thresh) 629 mlx5_rx_replenish_bulk_mbuf(rxq, repl_n); 630 /* See if there're unreturned mbufs from compressed CQE. */ 631 rcvd_pkt = rxq->decompressed; 632 if (rcvd_pkt > 0) { 633 rcvd_pkt = RTE_MIN(rcvd_pkt, pkts_n); 634 rxq_copy_mbuf_v(rxq, pkts, rcvd_pkt); 635 rxq->rq_pi += rcvd_pkt; 636 rxq->decompressed -= rcvd_pkt; 637 pkts += rcvd_pkt; 638 } 639 elts_idx = rxq->rq_pi & q_mask; 640 elts = &(*rxq->elts)[elts_idx]; 641 /* Not to overflow pkts array. */ 642 pkts_n = RTE_ALIGN_FLOOR(pkts_n - rcvd_pkt, MLX5_VPMD_DESCS_PER_LOOP); 643 /* Not to cross queue end. */ 644 pkts_n = RTE_MIN(pkts_n, q_n - elts_idx); 645 pkts_n = RTE_MIN(pkts_n, q_n - cq_idx); 646 if (!pkts_n) 647 return rcvd_pkt; 648 /* At this point, there shouldn't be any remaining packets. */ 649 MLX5_ASSERT(rxq->decompressed == 0); 650 651 /* 652 * A. load first Qword (8bytes) in one loop. 653 * B. copy 4 mbuf pointers from elts ring to returing pkts. 654 * C. load remaining CQE data and extract necessary fields. 655 * Final 16bytes cqes[] extracted from original 64bytes CQE has the 656 * following structure: 657 * struct { 658 * uint8_t pkt_info; 659 * uint8_t flow_tag[3]; 660 * uint16_t byte_cnt; 661 * uint8_t rsvd4; 662 * uint8_t op_own; 663 * uint16_t hdr_type_etc; 664 * uint16_t vlan_info; 665 * uint32_t rx_has_res; 666 * } c; 667 * D. fill in mbuf. 668 * E. get valid CQEs. 669 * F. find compressed CQE. 670 */ 671 for (pos = 0; 672 pos < pkts_n; 673 pos += MLX5_VPMD_DESCS_PER_LOOP) { 674 vector unsigned char cqes[MLX5_VPMD_DESCS_PER_LOOP]; 675 vector unsigned char cqe_tmp1, cqe_tmp2; 676 vector unsigned char pkt_mb0, pkt_mb1, pkt_mb2, pkt_mb3; 677 vector unsigned char op_own, op_own_tmp1, op_own_tmp2; 678 vector unsigned char opcode, owner_mask, invalid_mask; 679 vector unsigned char comp_mask; 680 vector unsigned char mask; 681 #ifdef MLX5_PMD_SOFT_COUNTERS 682 const vector unsigned char lower_half = { 683 0, 1, 4, 5, 8, 9, 12, 13, 684 16, 17, 20, 21, 24, 25, 28, 29}; 685 const vector unsigned char upper_half = { 686 2, 3, 6, 7, 10, 11, 14, 15, 687 18, 19, 22, 23, 26, 27, 30, 31}; 688 const vector unsigned long shmax = {64, 64}; 689 vector unsigned char byte_cnt; 690 vector unsigned short left, right; 691 vector unsigned long lshift; 692 vector __attribute__((altivec(bool__))) 693 unsigned long shmask; 694 #endif 695 vector unsigned char mbp1, mbp2; 696 vector unsigned char p = 697 (vector unsigned char)(vector unsigned short){ 698 0, 1, 2, 3, 0, 0, 0, 0}; 699 unsigned int p1, p2, p3; 700 701 /* Prefetch next 4 CQEs. */ 702 if (pkts_n - pos >= 2 * MLX5_VPMD_DESCS_PER_LOOP) { 703 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP]); 704 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 1]); 705 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 2]); 706 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 3]); 707 } 708 709 /* A.0 do not cross the end of CQ. */ 710 mask = (vector unsigned char)(vector unsigned long){ 711 (pkts_n - pos) * sizeof(uint16_t) * 8, 0}; 712 713 { 714 vector unsigned long lshift; 715 vector __attribute__((altivec(bool__))) 716 unsigned long shmask; 717 const vector unsigned long shmax = {64, 64}; 718 719 lshift = vec_splat((vector unsigned long)mask, 0); 720 shmask = vec_cmpgt(shmax, lshift); 721 mask = (vector unsigned char) 722 vec_sl((vector unsigned long)ones, lshift); 723 mask = (vector unsigned char) 724 vec_sel((vector unsigned long)shmask, 725 (vector unsigned long)mask, shmask); 726 } 727 728 p = (vector unsigned char) 729 vec_andc((vector unsigned long)p, 730 (vector unsigned long)mask); 731 732 /* A.1 load cqes. */ 733 p3 = (unsigned int)((vector unsigned short)p)[3]; 734 cqes[3] = (vector unsigned char)(vector unsigned long){ 735 *(__attribute__((__aligned__(8))) unsigned long *) 736 &cq[pos + p3].sop_drop_qpn, 0LL}; 737 rte_compiler_barrier(); 738 739 p2 = (unsigned int)((vector unsigned short)p)[2]; 740 cqes[2] = (vector unsigned char)(vector unsigned long){ 741 *(__attribute__((__aligned__(8))) unsigned long *) 742 &cq[pos + p2].sop_drop_qpn, 0LL}; 743 rte_compiler_barrier(); 744 745 /* B.1 load mbuf pointers. */ 746 mbp1 = (vector unsigned char)vec_vsx_ld(0, 747 (signed int const *)&elts[pos]); 748 mbp2 = (vector unsigned char)vec_vsx_ld(0, 749 (signed int const *)&elts[pos + 2]); 750 751 /* A.1 load a block having op_own. */ 752 p1 = (unsigned int)((vector unsigned short)p)[1]; 753 cqes[1] = (vector unsigned char)(vector unsigned long){ 754 *(__attribute__((__aligned__(8))) unsigned long *) 755 &cq[pos + p1].sop_drop_qpn, 0LL}; 756 rte_compiler_barrier(); 757 758 cqes[0] = (vector unsigned char)(vector unsigned long){ 759 *(__attribute__((__aligned__(8))) unsigned long *) 760 &cq[pos].sop_drop_qpn, 0LL}; 761 rte_compiler_barrier(); 762 763 /* B.2 copy mbuf pointers. */ 764 *(vector unsigned char *)&pkts[pos] = mbp1; 765 *(vector unsigned char *)&pkts[pos + 2] = mbp2; 766 rte_cio_rmb(); 767 768 /* C.1 load remaining CQE data and extract necessary fields. */ 769 cqe_tmp2 = *(vector unsigned char *) 770 &cq[pos + p3].pkt_info; 771 cqe_tmp1 = *(vector unsigned char *) 772 &cq[pos + p2].pkt_info; 773 cqes[3] = vec_sel(cqes[3], cqe_tmp2, blend_mask); 774 cqes[2] = vec_sel(cqes[2], cqe_tmp1, blend_mask); 775 cqe_tmp2 = (vector unsigned char)vec_vsx_ld(0, 776 (signed int const *)&cq[pos + p3].csum); 777 cqe_tmp1 = (vector unsigned char)vec_vsx_ld(0, 778 (signed int const *)&cq[pos + p2].csum); 779 cqes[3] = (vector unsigned char) 780 vec_sel((vector unsigned short)cqes[3], 781 (vector unsigned short)cqe_tmp2, cqe_sel_mask1); 782 cqes[2] = (vector unsigned char) 783 vec_sel((vector unsigned short)cqes[2], 784 (vector unsigned short)cqe_tmp1, cqe_sel_mask1); 785 cqe_tmp2 = (vector unsigned char)(vector unsigned long){ 786 *(__attribute__((__aligned__(8))) unsigned long *) 787 &cq[pos + p3].rsvd3[9], 0LL}; 788 cqe_tmp1 = (vector unsigned char)(vector unsigned long){ 789 *(__attribute__((__aligned__(8))) unsigned long *) 790 &cq[pos + p2].rsvd3[9], 0LL}; 791 cqes[3] = (vector unsigned char) 792 vec_sel((vector unsigned short)cqes[3], 793 (vector unsigned short)cqe_tmp2, 794 (vector unsigned short)cqe_sel_mask2); 795 cqes[2] = (vector unsigned char) 796 vec_sel((vector unsigned short)cqes[2], 797 (vector unsigned short)cqe_tmp1, 798 (vector unsigned short)cqe_sel_mask2); 799 800 /* C.2 generate final structure for mbuf with swapping bytes. */ 801 pkt_mb3 = vec_perm(cqes[3], zero, shuf_mask); 802 pkt_mb2 = vec_perm(cqes[2], zero, shuf_mask); 803 804 /* C.3 adjust CRC length. */ 805 pkt_mb3 = (vector unsigned char) 806 ((vector unsigned short)pkt_mb3 - 807 (vector unsigned short)crc_adj); 808 pkt_mb2 = (vector unsigned char) 809 ((vector unsigned short)pkt_mb2 - 810 (vector unsigned short)crc_adj); 811 812 /* C.4 adjust flow mark. */ 813 pkt_mb3 = (vector unsigned char) 814 ((vector unsigned int)pkt_mb3 + 815 (vector unsigned int)flow_mark_adj); 816 pkt_mb2 = (vector unsigned char) 817 ((vector unsigned int)pkt_mb2 + 818 (vector unsigned int)flow_mark_adj); 819 820 /* D.1 fill in mbuf - rx_descriptor_fields1. */ 821 *(vector unsigned char *) 822 &pkts[pos + 3]->pkt_len = pkt_mb3; 823 *(vector unsigned char *) 824 &pkts[pos + 2]->pkt_len = pkt_mb2; 825 826 /* E.1 extract op_own field. */ 827 op_own_tmp2 = (vector unsigned char) 828 vec_mergeh((vector unsigned int)cqes[2], 829 (vector unsigned int)cqes[3]); 830 831 /* C.1 load remaining CQE data and extract necessary fields. */ 832 cqe_tmp2 = *(vector unsigned char *) 833 &cq[pos + p1].pkt_info; 834 cqe_tmp1 = *(vector unsigned char *) 835 &cq[pos].pkt_info; 836 cqes[1] = vec_sel(cqes[1], cqe_tmp2, blend_mask); 837 cqes[0] = vec_sel(cqes[0], cqe_tmp2, blend_mask); 838 cqe_tmp2 = (vector unsigned char)vec_vsx_ld(0, 839 (signed int const *)&cq[pos + p1].csum); 840 cqe_tmp1 = (vector unsigned char)vec_vsx_ld(0, 841 (signed int const *)&cq[pos].csum); 842 cqes[1] = (vector unsigned char) 843 vec_sel((vector unsigned short)cqes[1], 844 (vector unsigned short)cqe_tmp2, cqe_sel_mask1); 845 cqes[0] = (vector unsigned char) 846 vec_sel((vector unsigned short)cqes[0], 847 (vector unsigned short)cqe_tmp1, cqe_sel_mask1); 848 cqe_tmp2 = (vector unsigned char)(vector unsigned long){ 849 *(__attribute__((__aligned__(8))) unsigned long *) 850 &cq[pos + p1].rsvd3[9], 0LL}; 851 cqe_tmp1 = (vector unsigned char)(vector unsigned long){ 852 *(__attribute__((__aligned__(8))) unsigned long *) 853 &cq[pos].rsvd3[9], 0LL}; 854 cqes[1] = (vector unsigned char) 855 vec_sel((vector unsigned short)cqes[1], 856 (vector unsigned short)cqe_tmp2, cqe_sel_mask2); 857 cqes[0] = (vector unsigned char) 858 vec_sel((vector unsigned short)cqes[0], 859 (vector unsigned short)cqe_tmp1, cqe_sel_mask2); 860 861 /* C.2 generate final structure for mbuf with swapping bytes. */ 862 pkt_mb1 = vec_perm(cqes[1], zero, shuf_mask); 863 pkt_mb0 = vec_perm(cqes[0], zero, shuf_mask); 864 865 /* C.3 adjust CRC length. */ 866 pkt_mb1 = (vector unsigned char) 867 ((vector unsigned short)pkt_mb1 - 868 (vector unsigned short)crc_adj); 869 pkt_mb0 = (vector unsigned char) 870 ((vector unsigned short)pkt_mb0 - 871 (vector unsigned short)crc_adj); 872 873 /* C.4 adjust flow mark. */ 874 pkt_mb1 = (vector unsigned char) 875 ((vector unsigned int)pkt_mb1 + 876 (vector unsigned int)flow_mark_adj); 877 pkt_mb0 = (vector unsigned char) 878 ((vector unsigned int)pkt_mb0 + 879 (vector unsigned int)flow_mark_adj); 880 881 /* E.1 extract op_own byte. */ 882 op_own_tmp1 = (vector unsigned char) 883 vec_mergeh((vector unsigned int)cqes[0], 884 (vector unsigned int)cqes[1]); 885 op_own = (vector unsigned char) 886 vec_mergel((vector unsigned long)op_own_tmp1, 887 (vector unsigned long)op_own_tmp2); 888 889 /* D.1 fill in mbuf - rx_descriptor_fields1. */ 890 *(vector unsigned char *) 891 &pkts[pos + 1]->pkt_len = pkt_mb1; 892 *(vector unsigned char *) 893 &pkts[pos]->pkt_len = pkt_mb0; 894 895 /* E.2 flip owner bit to mark CQEs from last round. */ 896 owner_mask = (vector unsigned char) 897 vec_and((vector unsigned long)op_own, 898 (vector unsigned long)owner_check); 899 if (ownership) 900 owner_mask = (vector unsigned char) 901 vec_xor((vector unsigned long)owner_mask, 902 (vector unsigned long)owner_check); 903 owner_mask = (vector unsigned char) 904 vec_cmpeq((vector unsigned int)owner_mask, 905 (vector unsigned int)owner_check); 906 owner_mask = (vector unsigned char) 907 vec_packs((vector unsigned int)owner_mask, 908 (vector unsigned int)zero); 909 910 /* E.3 get mask for invalidated CQEs. */ 911 opcode = (vector unsigned char) 912 vec_and((vector unsigned long)op_own, 913 (vector unsigned long)opcode_check); 914 invalid_mask = (vector unsigned char) 915 vec_cmpeq((vector unsigned int)opcode_check, 916 (vector unsigned int)opcode); 917 invalid_mask = (vector unsigned char) 918 vec_packs((vector unsigned int)invalid_mask, 919 (vector unsigned int)zero); 920 921 /* E.4 mask out beyond boundary. */ 922 invalid_mask = (vector unsigned char) 923 vec_or((vector unsigned long)invalid_mask, 924 (vector unsigned long)mask); 925 926 /* E.5 merge invalid_mask with invalid owner. */ 927 invalid_mask = (vector unsigned char) 928 vec_or((vector unsigned long)invalid_mask, 929 (vector unsigned long)owner_mask); 930 931 /* F.1 find compressed CQE format. */ 932 comp_mask = (vector unsigned char) 933 vec_and((vector unsigned long)op_own, 934 (vector unsigned long)format_check); 935 comp_mask = (vector unsigned char) 936 vec_cmpeq((vector unsigned int)comp_mask, 937 (vector unsigned int)format_check); 938 comp_mask = (vector unsigned char) 939 vec_packs((vector unsigned int)comp_mask, 940 (vector unsigned int)zero); 941 942 /* F.2 mask out invalid entries. */ 943 comp_mask = (vector unsigned char) 944 vec_andc((vector unsigned long)comp_mask, 945 (vector unsigned long)invalid_mask); 946 comp_idx = ((vector unsigned long)comp_mask)[0]; 947 948 /* F.3 get the first compressed CQE. */ 949 comp_idx = comp_idx ? __builtin_ctzll(comp_idx) / 950 (sizeof(uint16_t) * 8) : MLX5_VPMD_DESCS_PER_LOOP; 951 952 /* E.6 mask out entries after the compressed CQE. */ 953 mask = (vector unsigned char)(vector unsigned long){ 954 (comp_idx * sizeof(uint16_t) * 8), 0}; 955 lshift = vec_splat((vector unsigned long)mask, 0); 956 shmask = vec_cmpgt(shmax, lshift); 957 mask = (vector unsigned char) 958 vec_sl((vector unsigned long)ones, lshift); 959 mask = (vector unsigned char) 960 vec_sel((vector unsigned long)shmask, 961 (vector unsigned long)mask, shmask); 962 invalid_mask = (vector unsigned char) 963 vec_or((vector unsigned long)invalid_mask, 964 (vector unsigned long)mask); 965 966 /* E.7 count non-compressed valid CQEs. */ 967 n = ((vector unsigned long)invalid_mask)[0]; 968 n = n ? __builtin_ctzll(n) / (sizeof(uint16_t) * 8) : 969 MLX5_VPMD_DESCS_PER_LOOP; 970 nocmp_n += n; 971 972 /* D.2 get the final invalid mask. */ 973 mask = (vector unsigned char)(vector unsigned long){ 974 (n * 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 /* D.3 check error in opcode. */ 987 opcode = (vector unsigned char) 988 vec_cmpeq((vector unsigned int)resp_err_check, 989 (vector unsigned int)opcode); 990 opcode = (vector unsigned char) 991 vec_packs((vector unsigned int)opcode, 992 (vector unsigned int)zero); 993 opcode = (vector unsigned char) 994 vec_andc((vector unsigned long)opcode, 995 (vector unsigned long)invalid_mask); 996 997 /* D.4 mark if any error is set */ 998 *err |= ((vector unsigned long)opcode)[0]; 999 1000 /* D.5 fill in mbuf - rearm_data and packet_type. */ 1001 rxq_cq_to_ptype_oflags_v(rxq, cqes, opcode, &pkts[pos]); 1002 if (rxq->hw_timestamp) { 1003 pkts[pos]->timestamp = 1004 rte_be_to_cpu_64(cq[pos].timestamp); 1005 pkts[pos + 1]->timestamp = 1006 rte_be_to_cpu_64(cq[pos + p1].timestamp); 1007 pkts[pos + 2]->timestamp = 1008 rte_be_to_cpu_64(cq[pos + p2].timestamp); 1009 pkts[pos + 3]->timestamp = 1010 rte_be_to_cpu_64(cq[pos + p3].timestamp); 1011 } 1012 if (rte_flow_dynf_metadata_avail()) { 1013 uint64_t flag = rte_flow_dynf_metadata_mask; 1014 int offs = rte_flow_dynf_metadata_offs; 1015 uint32_t metadata; 1016 1017 /* This code is subject for futher optimization. */ 1018 metadata = cq[pos].flow_table_metadata; 1019 *RTE_MBUF_DYNFIELD(pkts[pos], offs, uint32_t *) = 1020 metadata; 1021 pkts[pos]->ol_flags |= metadata ? flag : 0ULL; 1022 metadata = cq[pos + 1].flow_table_metadata; 1023 *RTE_MBUF_DYNFIELD(pkts[pos + 1], offs, uint32_t *) = 1024 metadata; 1025 pkts[pos + 1]->ol_flags |= metadata ? flag : 0ULL; 1026 metadata = cq[pos + 2].flow_table_metadata; 1027 *RTE_MBUF_DYNFIELD(pkts[pos + 2], offs, uint32_t *) = 1028 metadata; 1029 pkts[pos + 2]->ol_flags |= metadata ? flag : 0ULL; 1030 metadata = cq[pos + 3].flow_table_metadata; 1031 *RTE_MBUF_DYNFIELD(pkts[pos + 3], offs, uint32_t *) = 1032 metadata; 1033 pkts[pos + 3]->ol_flags |= metadata ? flag : 0ULL; 1034 } 1035 #ifdef MLX5_PMD_SOFT_COUNTERS 1036 /* Add up received bytes count. */ 1037 byte_cnt = vec_perm(op_own, zero, len_shuf_mask); 1038 byte_cnt = (vector unsigned char) 1039 vec_andc((vector unsigned long)byte_cnt, 1040 (vector unsigned long)invalid_mask); 1041 left = vec_perm((vector unsigned short)byte_cnt, 1042 (vector unsigned short)zero, lower_half); 1043 right = vec_perm((vector unsigned short)byte_cnt, 1044 (vector unsigned short)zero, upper_half); 1045 byte_cnt = (vector unsigned char)vec_add(left, right); 1046 left = vec_perm((vector unsigned short)byte_cnt, 1047 (vector unsigned short)zero, lower_half); 1048 right = vec_perm((vector unsigned short)byte_cnt, 1049 (vector unsigned short)zero, upper_half); 1050 byte_cnt = (vector unsigned char)vec_add(left, right); 1051 rcvd_byte += ((vector unsigned long)byte_cnt)[0]; 1052 #endif 1053 1054 /* 1055 * Break the loop unless more valid CQE is expected, or if 1056 * there's a compressed CQE. 1057 */ 1058 if (n != MLX5_VPMD_DESCS_PER_LOOP) 1059 break; 1060 } 1061 /* If no new CQE seen, return without updating cq_db. */ 1062 if (unlikely(!nocmp_n && comp_idx == MLX5_VPMD_DESCS_PER_LOOP)) 1063 return rcvd_pkt; 1064 /* Update the consumer indexes for non-compressed CQEs. */ 1065 MLX5_ASSERT(nocmp_n <= pkts_n); 1066 rxq->cq_ci += nocmp_n; 1067 rxq->rq_pi += nocmp_n; 1068 rcvd_pkt += nocmp_n; 1069 #ifdef MLX5_PMD_SOFT_COUNTERS 1070 rxq->stats.ipackets += nocmp_n; 1071 rxq->stats.ibytes += rcvd_byte; 1072 #endif 1073 /* Decompress the last CQE if compressed. */ 1074 if (comp_idx < MLX5_VPMD_DESCS_PER_LOOP && comp_idx == n) { 1075 MLX5_ASSERT(comp_idx == (nocmp_n % MLX5_VPMD_DESCS_PER_LOOP)); 1076 rxq->decompressed = 1077 rxq_cq_decompress_v(rxq, &cq[nocmp_n], &elts[nocmp_n]); 1078 /* Return more packets if needed. */ 1079 if (nocmp_n < pkts_n) { 1080 uint16_t n = rxq->decompressed; 1081 1082 n = RTE_MIN(n, pkts_n - nocmp_n); 1083 rxq_copy_mbuf_v(rxq, &pkts[nocmp_n], n); 1084 rxq->rq_pi += n; 1085 rcvd_pkt += n; 1086 rxq->decompressed -= n; 1087 } 1088 } 1089 rte_compiler_barrier(); 1090 *rxq->cq_db = rte_cpu_to_be_32(rxq->cq_ci); 1091 return rcvd_pkt; 1092 } 1093 1094 #endif /* RTE_PMD_MLX5_RXTX_VEC_ALTIVEC_H_ */ 1095