1 /* SPDX-License-Identifier: BSD-3-Clause 2 * 3 * Copyright 2016 Freescale Semiconductor, Inc. All rights reserved. 4 * Copyright 2017,2019 NXP 5 * 6 */ 7 8 /* System headers */ 9 #include <inttypes.h> 10 #include <unistd.h> 11 #include <stdio.h> 12 #include <limits.h> 13 #include <sched.h> 14 #include <pthread.h> 15 16 #include <rte_byteorder.h> 17 #include <rte_common.h> 18 #include <rte_interrupts.h> 19 #include <rte_log.h> 20 #include <rte_debug.h> 21 #include <rte_pci.h> 22 #include <rte_atomic.h> 23 #include <rte_branch_prediction.h> 24 #include <rte_memory.h> 25 #include <rte_tailq.h> 26 #include <rte_eal.h> 27 #include <rte_alarm.h> 28 #include <rte_ether.h> 29 #include <rte_ethdev_driver.h> 30 #include <rte_malloc.h> 31 #include <rte_ring.h> 32 #include <rte_ip.h> 33 #include <rte_tcp.h> 34 #include <rte_udp.h> 35 #include <rte_net.h> 36 #include <rte_eventdev.h> 37 38 #include "dpaa_ethdev.h" 39 #include "dpaa_rxtx.h" 40 #include <rte_dpaa_bus.h> 41 #include <dpaa_mempool.h> 42 43 #include <qman.h> 44 #include <fsl_usd.h> 45 #include <fsl_qman.h> 46 #include <fsl_bman.h> 47 #include <of.h> 48 #include <netcfg.h> 49 50 #define DPAA_MBUF_TO_CONTIG_FD(_mbuf, _fd, _bpid) \ 51 do { \ 52 (_fd)->cmd = 0; \ 53 (_fd)->opaque_addr = 0; \ 54 (_fd)->opaque = QM_FD_CONTIG << DPAA_FD_FORMAT_SHIFT; \ 55 (_fd)->opaque |= ((_mbuf)->data_off) << DPAA_FD_OFFSET_SHIFT; \ 56 (_fd)->opaque |= (_mbuf)->pkt_len; \ 57 (_fd)->addr = (_mbuf)->buf_iova; \ 58 (_fd)->bpid = _bpid; \ 59 } while (0) 60 61 #if (defined RTE_LIBRTE_DPAA_DEBUG_DRIVER) 62 static void dpaa_display_frame(const struct qm_fd *fd) 63 { 64 int ii; 65 char *ptr; 66 67 printf("%s::bpid %x addr %08x%08x, format %d off %d, len %d stat %x\n", 68 __func__, fd->bpid, fd->addr_hi, fd->addr_lo, fd->format, 69 fd->offset, fd->length20, fd->status); 70 71 ptr = (char *)rte_dpaa_mem_ptov(fd->addr); 72 ptr += fd->offset; 73 printf("%02x ", *ptr); 74 for (ii = 1; ii < fd->length20; ii++) { 75 printf("%02x ", *ptr); 76 if ((ii % 16) == 0) 77 printf("\n"); 78 ptr++; 79 } 80 printf("\n"); 81 } 82 #else 83 #define dpaa_display_frame(a) 84 #endif 85 86 static inline void dpaa_slow_parsing(struct rte_mbuf *m __rte_unused, 87 uint64_t prs __rte_unused) 88 { 89 DPAA_DP_LOG(DEBUG, "Slow parsing"); 90 /*TBD:XXX: to be implemented*/ 91 } 92 93 static inline void dpaa_eth_packet_info(struct rte_mbuf *m, void *fd_virt_addr) 94 { 95 struct annotations_t *annot = GET_ANNOTATIONS(fd_virt_addr); 96 uint64_t prs = *((uintptr_t *)(&annot->parse)) & DPAA_PARSE_MASK; 97 98 DPAA_DP_LOG(DEBUG, " Parsing mbuf: %p with annotations: %p", m, annot); 99 100 switch (prs) { 101 case DPAA_PKT_TYPE_IPV4: 102 m->packet_type = RTE_PTYPE_L2_ETHER | 103 RTE_PTYPE_L3_IPV4; 104 break; 105 case DPAA_PKT_TYPE_IPV6: 106 m->packet_type = RTE_PTYPE_L2_ETHER | 107 RTE_PTYPE_L3_IPV6; 108 break; 109 case DPAA_PKT_TYPE_ETHER: 110 m->packet_type = RTE_PTYPE_L2_ETHER; 111 break; 112 case DPAA_PKT_TYPE_IPV4_FRAG: 113 case DPAA_PKT_TYPE_IPV4_FRAG_UDP: 114 case DPAA_PKT_TYPE_IPV4_FRAG_TCP: 115 case DPAA_PKT_TYPE_IPV4_FRAG_SCTP: 116 m->packet_type = RTE_PTYPE_L2_ETHER | 117 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_FRAG; 118 break; 119 case DPAA_PKT_TYPE_IPV6_FRAG: 120 case DPAA_PKT_TYPE_IPV6_FRAG_UDP: 121 case DPAA_PKT_TYPE_IPV6_FRAG_TCP: 122 case DPAA_PKT_TYPE_IPV6_FRAG_SCTP: 123 m->packet_type = RTE_PTYPE_L2_ETHER | 124 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_FRAG; 125 break; 126 case DPAA_PKT_TYPE_IPV4_EXT: 127 m->packet_type = RTE_PTYPE_L2_ETHER | 128 RTE_PTYPE_L3_IPV4_EXT; 129 break; 130 case DPAA_PKT_TYPE_IPV6_EXT: 131 m->packet_type = RTE_PTYPE_L2_ETHER | 132 RTE_PTYPE_L3_IPV6_EXT; 133 break; 134 case DPAA_PKT_TYPE_IPV4_TCP: 135 m->packet_type = RTE_PTYPE_L2_ETHER | 136 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_TCP; 137 break; 138 case DPAA_PKT_TYPE_IPV6_TCP: 139 m->packet_type = RTE_PTYPE_L2_ETHER | 140 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP; 141 break; 142 case DPAA_PKT_TYPE_IPV4_UDP: 143 m->packet_type = RTE_PTYPE_L2_ETHER | 144 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_UDP; 145 break; 146 case DPAA_PKT_TYPE_IPV6_UDP: 147 m->packet_type = RTE_PTYPE_L2_ETHER | 148 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP; 149 break; 150 case DPAA_PKT_TYPE_IPV4_EXT_UDP: 151 m->packet_type = RTE_PTYPE_L2_ETHER | 152 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_UDP; 153 break; 154 case DPAA_PKT_TYPE_IPV6_EXT_UDP: 155 m->packet_type = RTE_PTYPE_L2_ETHER | 156 RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_UDP; 157 break; 158 case DPAA_PKT_TYPE_IPV4_EXT_TCP: 159 m->packet_type = RTE_PTYPE_L2_ETHER | 160 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_TCP; 161 break; 162 case DPAA_PKT_TYPE_IPV6_EXT_TCP: 163 m->packet_type = RTE_PTYPE_L2_ETHER | 164 RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_TCP; 165 break; 166 case DPAA_PKT_TYPE_IPV4_SCTP: 167 m->packet_type = RTE_PTYPE_L2_ETHER | 168 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_SCTP; 169 break; 170 case DPAA_PKT_TYPE_IPV6_SCTP: 171 m->packet_type = RTE_PTYPE_L2_ETHER | 172 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_SCTP; 173 break; 174 case DPAA_PKT_TYPE_NONE: 175 m->packet_type = 0; 176 break; 177 /* More switch cases can be added */ 178 default: 179 dpaa_slow_parsing(m, prs); 180 } 181 182 m->tx_offload = annot->parse.ip_off[0]; 183 m->tx_offload |= (annot->parse.l4_off - annot->parse.ip_off[0]) 184 << DPAA_PKT_L3_LEN_SHIFT; 185 186 /* Set the hash values */ 187 m->hash.rss = (uint32_t)(annot->hash); 188 /* All packets with Bad checksum are dropped by interface (and 189 * corresponding notification issued to RX error queues). 190 */ 191 m->ol_flags = PKT_RX_RSS_HASH | PKT_RX_IP_CKSUM_GOOD; 192 193 /* Check if Vlan is present */ 194 if (prs & DPAA_PARSE_VLAN_MASK) 195 m->ol_flags |= PKT_RX_VLAN; 196 /* Packet received without stripping the vlan */ 197 } 198 199 static inline void dpaa_checksum(struct rte_mbuf *mbuf) 200 { 201 struct rte_ether_hdr *eth_hdr = 202 rte_pktmbuf_mtod(mbuf, struct rte_ether_hdr *); 203 char *l3_hdr = (char *)eth_hdr + mbuf->l2_len; 204 struct rte_ipv4_hdr *ipv4_hdr = (struct rte_ipv4_hdr *)l3_hdr; 205 struct rte_ipv6_hdr *ipv6_hdr = (struct rte_ipv6_hdr *)l3_hdr; 206 207 DPAA_DP_LOG(DEBUG, "Calculating checksum for mbuf: %p", mbuf); 208 209 if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) || 210 ((mbuf->packet_type & RTE_PTYPE_L3_MASK) == 211 RTE_PTYPE_L3_IPV4_EXT)) { 212 ipv4_hdr = (struct rte_ipv4_hdr *)l3_hdr; 213 ipv4_hdr->hdr_checksum = 0; 214 ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr); 215 } else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == 216 RTE_PTYPE_L3_IPV6) || 217 ((mbuf->packet_type & RTE_PTYPE_L3_MASK) == 218 RTE_PTYPE_L3_IPV6_EXT)) 219 ipv6_hdr = (struct rte_ipv6_hdr *)l3_hdr; 220 221 if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) { 222 struct rte_tcp_hdr *tcp_hdr = (struct rte_tcp_hdr *)(l3_hdr + 223 mbuf->l3_len); 224 tcp_hdr->cksum = 0; 225 if (eth_hdr->ether_type == htons(RTE_ETHER_TYPE_IPV4)) 226 tcp_hdr->cksum = rte_ipv4_udptcp_cksum(ipv4_hdr, 227 tcp_hdr); 228 else /* assume ethertype == RTE_ETHER_TYPE_IPV6 */ 229 tcp_hdr->cksum = rte_ipv6_udptcp_cksum(ipv6_hdr, 230 tcp_hdr); 231 } else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == 232 RTE_PTYPE_L4_UDP) { 233 struct rte_udp_hdr *udp_hdr = (struct rte_udp_hdr *)(l3_hdr + 234 mbuf->l3_len); 235 udp_hdr->dgram_cksum = 0; 236 if (eth_hdr->ether_type == htons(RTE_ETHER_TYPE_IPV4)) 237 udp_hdr->dgram_cksum = rte_ipv4_udptcp_cksum(ipv4_hdr, 238 udp_hdr); 239 else /* assume ethertype == RTE_ETHER_TYPE_IPV6 */ 240 udp_hdr->dgram_cksum = rte_ipv6_udptcp_cksum(ipv6_hdr, 241 udp_hdr); 242 } 243 } 244 245 static inline void dpaa_checksum_offload(struct rte_mbuf *mbuf, 246 struct qm_fd *fd, char *prs_buf) 247 { 248 struct dpaa_eth_parse_results_t *prs; 249 250 DPAA_DP_LOG(DEBUG, " Offloading checksum for mbuf: %p", mbuf); 251 252 prs = GET_TX_PRS(prs_buf); 253 prs->l3r = 0; 254 prs->l4r = 0; 255 if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) || 256 ((mbuf->packet_type & RTE_PTYPE_L3_MASK) == 257 RTE_PTYPE_L3_IPV4_EXT)) 258 prs->l3r = DPAA_L3_PARSE_RESULT_IPV4; 259 else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == 260 RTE_PTYPE_L3_IPV6) || 261 ((mbuf->packet_type & RTE_PTYPE_L3_MASK) == 262 RTE_PTYPE_L3_IPV6_EXT)) 263 prs->l3r = DPAA_L3_PARSE_RESULT_IPV6; 264 265 if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) 266 prs->l4r = DPAA_L4_PARSE_RESULT_TCP; 267 else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_UDP) 268 prs->l4r = DPAA_L4_PARSE_RESULT_UDP; 269 270 prs->ip_off[0] = mbuf->l2_len; 271 prs->l4_off = mbuf->l3_len + mbuf->l2_len; 272 /* Enable L3 (and L4, if TCP or UDP) HW checksum*/ 273 fd->cmd = DPAA_FD_CMD_RPD | DPAA_FD_CMD_DTC; 274 } 275 276 static inline void 277 dpaa_unsegmented_checksum(struct rte_mbuf *mbuf, struct qm_fd *fd_arr) 278 { 279 if (!mbuf->packet_type) { 280 struct rte_net_hdr_lens hdr_lens; 281 282 mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens, 283 RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK 284 | RTE_PTYPE_L4_MASK); 285 mbuf->l2_len = hdr_lens.l2_len; 286 mbuf->l3_len = hdr_lens.l3_len; 287 } 288 if (mbuf->data_off < (DEFAULT_TX_ICEOF + 289 sizeof(struct dpaa_eth_parse_results_t))) { 290 DPAA_DP_LOG(DEBUG, "Checksum offload Err: " 291 "Not enough Headroom " 292 "space for correct Checksum offload." 293 "So Calculating checksum in Software."); 294 dpaa_checksum(mbuf); 295 } else { 296 dpaa_checksum_offload(mbuf, fd_arr, mbuf->buf_addr); 297 } 298 } 299 300 struct rte_mbuf * 301 dpaa_eth_sg_to_mbuf(const struct qm_fd *fd, uint32_t ifid) 302 { 303 struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid); 304 struct rte_mbuf *first_seg, *prev_seg, *cur_seg, *temp; 305 struct qm_sg_entry *sgt, *sg_temp; 306 void *vaddr, *sg_vaddr; 307 int i = 0; 308 uint8_t fd_offset = fd->offset; 309 310 vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd)); 311 if (!vaddr) { 312 DPAA_PMD_ERR("unable to convert physical address"); 313 return NULL; 314 } 315 sgt = vaddr + fd_offset; 316 sg_temp = &sgt[i++]; 317 hw_sg_to_cpu(sg_temp); 318 temp = (struct rte_mbuf *)((char *)vaddr - bp_info->meta_data_size); 319 sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_sg_entry_get64(sg_temp)); 320 321 first_seg = (struct rte_mbuf *)((char *)sg_vaddr - 322 bp_info->meta_data_size); 323 first_seg->data_off = sg_temp->offset; 324 first_seg->data_len = sg_temp->length; 325 first_seg->pkt_len = sg_temp->length; 326 rte_mbuf_refcnt_set(first_seg, 1); 327 328 first_seg->port = ifid; 329 first_seg->nb_segs = 1; 330 first_seg->ol_flags = 0; 331 prev_seg = first_seg; 332 while (i < DPAA_SGT_MAX_ENTRIES) { 333 sg_temp = &sgt[i++]; 334 hw_sg_to_cpu(sg_temp); 335 sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info, 336 qm_sg_entry_get64(sg_temp)); 337 cur_seg = (struct rte_mbuf *)((char *)sg_vaddr - 338 bp_info->meta_data_size); 339 cur_seg->data_off = sg_temp->offset; 340 cur_seg->data_len = sg_temp->length; 341 first_seg->pkt_len += sg_temp->length; 342 first_seg->nb_segs += 1; 343 rte_mbuf_refcnt_set(cur_seg, 1); 344 prev_seg->next = cur_seg; 345 if (sg_temp->final) { 346 cur_seg->next = NULL; 347 break; 348 } 349 prev_seg = cur_seg; 350 } 351 DPAA_DP_LOG(DEBUG, "Received an SG frame len =%d, num_sg =%d", 352 first_seg->pkt_len, first_seg->nb_segs); 353 354 dpaa_eth_packet_info(first_seg, vaddr); 355 rte_pktmbuf_free_seg(temp); 356 357 return first_seg; 358 } 359 360 static inline struct rte_mbuf * 361 dpaa_eth_fd_to_mbuf(const struct qm_fd *fd, uint32_t ifid) 362 { 363 struct rte_mbuf *mbuf; 364 struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid); 365 void *ptr; 366 uint8_t format = 367 (fd->opaque & DPAA_FD_FORMAT_MASK) >> DPAA_FD_FORMAT_SHIFT; 368 uint16_t offset; 369 uint32_t length; 370 371 if (unlikely(format == qm_fd_sg)) 372 return dpaa_eth_sg_to_mbuf(fd, ifid); 373 374 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT; 375 length = fd->opaque & DPAA_FD_LENGTH_MASK; 376 377 DPAA_DP_LOG(DEBUG, " FD--->MBUF off %d len = %d", offset, length); 378 379 /* Ignoring case when format != qm_fd_contig */ 380 dpaa_display_frame(fd); 381 ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd)); 382 383 mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size); 384 /* Prefetch the Parse results and packet data to L1 */ 385 rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF)); 386 387 mbuf->data_off = offset; 388 mbuf->data_len = length; 389 mbuf->pkt_len = length; 390 391 mbuf->port = ifid; 392 mbuf->nb_segs = 1; 393 mbuf->ol_flags = 0; 394 mbuf->next = NULL; 395 rte_mbuf_refcnt_set(mbuf, 1); 396 dpaa_eth_packet_info(mbuf, mbuf->buf_addr); 397 398 return mbuf; 399 } 400 401 /* Specific for LS1043 */ 402 void 403 dpaa_rx_cb_no_prefetch(struct qman_fq **fq, struct qm_dqrr_entry **dqrr, 404 void **bufs, int num_bufs) 405 { 406 struct rte_mbuf *mbuf; 407 struct dpaa_bp_info *bp_info; 408 const struct qm_fd *fd; 409 void *ptr; 410 struct dpaa_if *dpaa_intf; 411 uint16_t offset, i; 412 uint32_t length; 413 uint8_t format; 414 415 bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[0]->fd.bpid); 416 ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[0]->fd)); 417 rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF)); 418 bufs[0] = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size); 419 420 for (i = 0; i < num_bufs; i++) { 421 if (i < num_bufs - 1) { 422 bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[i + 1]->fd.bpid); 423 ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[i + 1]->fd)); 424 rte_prefetch0((void *)((uint8_t *)ptr + 425 DEFAULT_RX_ICEOF)); 426 bufs[i + 1] = (struct rte_mbuf *)((char *)ptr - 427 bp_info->meta_data_size); 428 } 429 430 fd = &dqrr[i]->fd; 431 dpaa_intf = fq[0]->dpaa_intf; 432 433 format = (fd->opaque & DPAA_FD_FORMAT_MASK) >> 434 DPAA_FD_FORMAT_SHIFT; 435 if (unlikely(format == qm_fd_sg)) { 436 bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid); 437 continue; 438 } 439 440 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> 441 DPAA_FD_OFFSET_SHIFT; 442 length = fd->opaque & DPAA_FD_LENGTH_MASK; 443 444 mbuf = bufs[i]; 445 mbuf->data_off = offset; 446 mbuf->data_len = length; 447 mbuf->pkt_len = length; 448 mbuf->port = dpaa_intf->ifid; 449 450 mbuf->nb_segs = 1; 451 mbuf->ol_flags = 0; 452 mbuf->next = NULL; 453 rte_mbuf_refcnt_set(mbuf, 1); 454 dpaa_eth_packet_info(mbuf, mbuf->buf_addr); 455 } 456 } 457 458 void 459 dpaa_rx_cb(struct qman_fq **fq, struct qm_dqrr_entry **dqrr, 460 void **bufs, int num_bufs) 461 { 462 struct rte_mbuf *mbuf; 463 const struct qm_fd *fd; 464 struct dpaa_if *dpaa_intf; 465 uint16_t offset, i; 466 uint32_t length; 467 uint8_t format; 468 469 for (i = 0; i < num_bufs; i++) { 470 fd = &dqrr[i]->fd; 471 dpaa_intf = fq[0]->dpaa_intf; 472 473 format = (fd->opaque & DPAA_FD_FORMAT_MASK) >> 474 DPAA_FD_FORMAT_SHIFT; 475 if (unlikely(format == qm_fd_sg)) { 476 bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid); 477 continue; 478 } 479 480 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> 481 DPAA_FD_OFFSET_SHIFT; 482 length = fd->opaque & DPAA_FD_LENGTH_MASK; 483 484 mbuf = bufs[i]; 485 mbuf->data_off = offset; 486 mbuf->data_len = length; 487 mbuf->pkt_len = length; 488 mbuf->port = dpaa_intf->ifid; 489 490 mbuf->nb_segs = 1; 491 mbuf->ol_flags = 0; 492 mbuf->next = NULL; 493 rte_mbuf_refcnt_set(mbuf, 1); 494 dpaa_eth_packet_info(mbuf, mbuf->buf_addr); 495 } 496 } 497 498 void dpaa_rx_cb_prepare(struct qm_dqrr_entry *dq, void **bufs) 499 { 500 struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(dq->fd.bpid); 501 void *ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dq->fd)); 502 503 /* In case of LS1046, annotation stashing is disabled due to L2 cache 504 * being bottleneck in case of multicore scanario for this platform. 505 * So we prefetch the annoation beforehand, so that it is available 506 * in cache when accessed. 507 */ 508 rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF)); 509 510 *bufs = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size); 511 } 512 513 static uint16_t 514 dpaa_eth_queue_portal_rx(struct qman_fq *fq, 515 struct rte_mbuf **bufs, 516 uint16_t nb_bufs) 517 { 518 int ret; 519 520 if (unlikely(!fq->qp_initialized)) { 521 ret = rte_dpaa_portal_fq_init((void *)0, fq); 522 if (ret) { 523 DPAA_PMD_ERR("Failure in affining portal %d", ret); 524 return 0; 525 } 526 fq->qp_initialized = 1; 527 } 528 529 return qman_portal_poll_rx(nb_bufs, (void **)bufs, fq->qp); 530 } 531 532 enum qman_cb_dqrr_result 533 dpaa_rx_cb_parallel(void *event, 534 struct qman_portal *qm __always_unused, 535 struct qman_fq *fq, 536 const struct qm_dqrr_entry *dqrr, 537 void **bufs) 538 { 539 u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid; 540 struct rte_mbuf *mbuf; 541 struct rte_event *ev = (struct rte_event *)event; 542 543 mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid); 544 ev->event_ptr = (void *)mbuf; 545 ev->flow_id = fq->ev.flow_id; 546 ev->sub_event_type = fq->ev.sub_event_type; 547 ev->event_type = RTE_EVENT_TYPE_ETHDEV; 548 ev->op = RTE_EVENT_OP_NEW; 549 ev->sched_type = fq->ev.sched_type; 550 ev->queue_id = fq->ev.queue_id; 551 ev->priority = fq->ev.priority; 552 ev->impl_opaque = (uint8_t)DPAA_INVALID_MBUF_SEQN; 553 mbuf->seqn = DPAA_INVALID_MBUF_SEQN; 554 *bufs = mbuf; 555 556 return qman_cb_dqrr_consume; 557 } 558 559 enum qman_cb_dqrr_result 560 dpaa_rx_cb_atomic(void *event, 561 struct qman_portal *qm __always_unused, 562 struct qman_fq *fq, 563 const struct qm_dqrr_entry *dqrr, 564 void **bufs) 565 { 566 u8 index; 567 u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid; 568 struct rte_mbuf *mbuf; 569 struct rte_event *ev = (struct rte_event *)event; 570 571 mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid); 572 ev->event_ptr = (void *)mbuf; 573 ev->flow_id = fq->ev.flow_id; 574 ev->sub_event_type = fq->ev.sub_event_type; 575 ev->event_type = RTE_EVENT_TYPE_ETHDEV; 576 ev->op = RTE_EVENT_OP_NEW; 577 ev->sched_type = fq->ev.sched_type; 578 ev->queue_id = fq->ev.queue_id; 579 ev->priority = fq->ev.priority; 580 581 /* Save active dqrr entries */ 582 index = DQRR_PTR2IDX(dqrr); 583 DPAA_PER_LCORE_DQRR_SIZE++; 584 DPAA_PER_LCORE_DQRR_HELD |= 1 << index; 585 DPAA_PER_LCORE_DQRR_MBUF(index) = mbuf; 586 ev->impl_opaque = index + 1; 587 mbuf->seqn = (uint32_t)index + 1; 588 *bufs = mbuf; 589 590 return qman_cb_dqrr_defer; 591 } 592 593 uint16_t dpaa_eth_queue_rx(void *q, 594 struct rte_mbuf **bufs, 595 uint16_t nb_bufs) 596 { 597 struct qman_fq *fq = q; 598 struct qm_dqrr_entry *dq; 599 uint32_t num_rx = 0, ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid; 600 int num_rx_bufs, ret; 601 uint32_t vdqcr_flags = 0; 602 603 if (unlikely(rte_dpaa_bpid_info == NULL && 604 rte_eal_process_type() == RTE_PROC_SECONDARY)) 605 rte_dpaa_bpid_info = fq->bp_array; 606 607 if (likely(fq->is_static)) 608 return dpaa_eth_queue_portal_rx(fq, bufs, nb_bufs); 609 610 if (unlikely(!RTE_PER_LCORE(dpaa_io))) { 611 ret = rte_dpaa_portal_init((void *)0); 612 if (ret) { 613 DPAA_PMD_ERR("Failure in affining portal"); 614 return 0; 615 } 616 } 617 618 /* Until request for four buffers, we provide exact number of buffers. 619 * Otherwise we do not set the QM_VDQCR_EXACT flag. 620 * Not setting QM_VDQCR_EXACT flag can provide two more buffers than 621 * requested, so we request two less in this case. 622 */ 623 if (nb_bufs < 4) { 624 vdqcr_flags = QM_VDQCR_EXACT; 625 num_rx_bufs = nb_bufs; 626 } else { 627 num_rx_bufs = nb_bufs > DPAA_MAX_DEQUEUE_NUM_FRAMES ? 628 (DPAA_MAX_DEQUEUE_NUM_FRAMES - 2) : (nb_bufs - 2); 629 } 630 ret = qman_set_vdq(fq, num_rx_bufs, vdqcr_flags); 631 if (ret) 632 return 0; 633 634 do { 635 dq = qman_dequeue(fq); 636 if (!dq) 637 continue; 638 bufs[num_rx++] = dpaa_eth_fd_to_mbuf(&dq->fd, ifid); 639 qman_dqrr_consume(fq, dq); 640 } while (fq->flags & QMAN_FQ_STATE_VDQCR); 641 642 return num_rx; 643 } 644 645 int 646 dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf, 647 struct qm_fd *fd, 648 uint32_t bpid) 649 { 650 struct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL; 651 struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(bpid); 652 struct rte_mbuf *temp, *mi; 653 struct qm_sg_entry *sg_temp, *sgt; 654 int i = 0; 655 656 DPAA_DP_LOG(DEBUG, "Creating SG FD to transmit"); 657 658 temp = rte_pktmbuf_alloc(bp_info->mp); 659 if (!temp) { 660 DPAA_PMD_ERR("Failure in allocation of mbuf"); 661 return -1; 662 } 663 if (temp->buf_len < ((mbuf->nb_segs * sizeof(struct qm_sg_entry)) 664 + temp->data_off)) { 665 DPAA_PMD_ERR("Insufficient space in mbuf for SG entries"); 666 return -1; 667 } 668 669 fd->cmd = 0; 670 fd->opaque_addr = 0; 671 672 if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) { 673 if (!mbuf->packet_type) { 674 struct rte_net_hdr_lens hdr_lens; 675 676 mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens, 677 RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK 678 | RTE_PTYPE_L4_MASK); 679 mbuf->l2_len = hdr_lens.l2_len; 680 mbuf->l3_len = hdr_lens.l3_len; 681 } 682 if (temp->data_off < DEFAULT_TX_ICEOF 683 + sizeof(struct dpaa_eth_parse_results_t)) 684 temp->data_off = DEFAULT_TX_ICEOF 685 + sizeof(struct dpaa_eth_parse_results_t); 686 dcbz_64(temp->buf_addr); 687 dpaa_checksum_offload(mbuf, fd, temp->buf_addr); 688 } 689 690 sgt = temp->buf_addr + temp->data_off; 691 fd->format = QM_FD_SG; 692 fd->addr = temp->buf_iova; 693 fd->offset = temp->data_off; 694 fd->bpid = bpid; 695 fd->length20 = mbuf->pkt_len; 696 697 while (i < DPAA_SGT_MAX_ENTRIES) { 698 sg_temp = &sgt[i++]; 699 sg_temp->opaque = 0; 700 sg_temp->val = 0; 701 sg_temp->addr = cur_seg->buf_iova; 702 sg_temp->offset = cur_seg->data_off; 703 sg_temp->length = cur_seg->data_len; 704 if (RTE_MBUF_DIRECT(cur_seg)) { 705 if (rte_mbuf_refcnt_read(cur_seg) > 1) { 706 /*If refcnt > 1, invalid bpid is set to ensure 707 * buffer is not freed by HW. 708 */ 709 sg_temp->bpid = 0xff; 710 rte_mbuf_refcnt_update(cur_seg, -1); 711 } else { 712 sg_temp->bpid = 713 DPAA_MEMPOOL_TO_BPID(cur_seg->pool); 714 } 715 cur_seg = cur_seg->next; 716 } else { 717 /* Get owner MBUF from indirect buffer */ 718 mi = rte_mbuf_from_indirect(cur_seg); 719 if (rte_mbuf_refcnt_read(mi) > 1) { 720 /*If refcnt > 1, invalid bpid is set to ensure 721 * owner buffer is not freed by HW. 722 */ 723 sg_temp->bpid = 0xff; 724 } else { 725 sg_temp->bpid = DPAA_MEMPOOL_TO_BPID(mi->pool); 726 rte_mbuf_refcnt_update(mi, 1); 727 } 728 prev_seg = cur_seg; 729 cur_seg = cur_seg->next; 730 prev_seg->next = NULL; 731 rte_pktmbuf_free(prev_seg); 732 } 733 if (cur_seg == NULL) { 734 sg_temp->final = 1; 735 cpu_to_hw_sg(sg_temp); 736 break; 737 } 738 cpu_to_hw_sg(sg_temp); 739 } 740 return 0; 741 } 742 743 /* Handle mbufs which are not segmented (non SG) */ 744 static inline void 745 tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf, 746 struct dpaa_bp_info *bp_info, 747 struct qm_fd *fd_arr) 748 { 749 struct rte_mbuf *mi = NULL; 750 751 if (RTE_MBUF_DIRECT(mbuf)) { 752 if (rte_mbuf_refcnt_read(mbuf) > 1) { 753 /* In case of direct mbuf and mbuf being cloned, 754 * BMAN should _not_ release buffer. 755 */ 756 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff); 757 /* Buffer should be releasd by EAL */ 758 rte_mbuf_refcnt_update(mbuf, -1); 759 } else { 760 /* In case of direct mbuf and no cloning, mbuf can be 761 * released by BMAN. 762 */ 763 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid); 764 } 765 } else { 766 /* This is data-containing core mbuf: 'mi' */ 767 mi = rte_mbuf_from_indirect(mbuf); 768 if (rte_mbuf_refcnt_read(mi) > 1) { 769 /* In case of indirect mbuf, and mbuf being cloned, 770 * BMAN should _not_ release it and let EAL release 771 * it through pktmbuf_free below. 772 */ 773 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff); 774 } else { 775 /* In case of indirect mbuf, and no cloning, core mbuf 776 * should be released by BMAN. 777 * Increate refcnt of core mbuf so that when 778 * pktmbuf_free is called and mbuf is released, EAL 779 * doesn't try to release core mbuf which would have 780 * been released by BMAN. 781 */ 782 rte_mbuf_refcnt_update(mi, 1); 783 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid); 784 } 785 rte_pktmbuf_free(mbuf); 786 } 787 788 if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) 789 dpaa_unsegmented_checksum(mbuf, fd_arr); 790 } 791 792 /* Handle all mbufs on dpaa BMAN managed pool */ 793 static inline uint16_t 794 tx_on_dpaa_pool(struct rte_mbuf *mbuf, 795 struct dpaa_bp_info *bp_info, 796 struct qm_fd *fd_arr) 797 { 798 DPAA_DP_LOG(DEBUG, "BMAN offloaded buffer, mbuf: %p", mbuf); 799 800 if (mbuf->nb_segs == 1) { 801 /* Case for non-segmented buffers */ 802 tx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr); 803 } else if (mbuf->nb_segs > 1 && 804 mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) { 805 if (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info->bpid)) { 806 DPAA_PMD_DEBUG("Unable to create Scatter Gather FD"); 807 return 1; 808 } 809 } else { 810 DPAA_PMD_DEBUG("Number of Segments not supported"); 811 return 1; 812 } 813 814 return 0; 815 } 816 817 /* Handle all mbufs on an external pool (non-dpaa) */ 818 static inline struct rte_mbuf * 819 reallocate_mbuf(struct qman_fq *txq, struct rte_mbuf *mbuf) 820 { 821 struct dpaa_if *dpaa_intf = txq->dpaa_intf; 822 struct dpaa_bp_info *bp_info = dpaa_intf->bp_info; 823 struct rte_mbuf *new_mbufs[DPAA_SGT_MAX_ENTRIES + 1] = {0}; 824 struct rte_mbuf *temp_mbuf; 825 int num_new_segs, mbuf_greater, ret, extra_seg = 0, i = 0; 826 uint64_t mbufs_size, bytes_to_copy, offset1 = 0, offset2 = 0; 827 char *data; 828 829 DPAA_DP_LOG(DEBUG, "Reallocating transmit buffer"); 830 831 mbufs_size = bp_info->size - 832 bp_info->meta_data_size - RTE_PKTMBUF_HEADROOM; 833 extra_seg = !!(mbuf->pkt_len % mbufs_size); 834 num_new_segs = (mbuf->pkt_len / mbufs_size) + extra_seg; 835 836 ret = rte_pktmbuf_alloc_bulk(bp_info->mp, new_mbufs, num_new_segs); 837 if (ret != 0) { 838 DPAA_DP_LOG(DEBUG, "Allocation for new buffers failed"); 839 return NULL; 840 } 841 842 temp_mbuf = mbuf; 843 844 while (temp_mbuf) { 845 /* If mbuf data is less than new mbuf remaining memory */ 846 if ((temp_mbuf->data_len - offset1) < (mbufs_size - offset2)) { 847 bytes_to_copy = temp_mbuf->data_len - offset1; 848 mbuf_greater = -1; 849 /* If mbuf data is greater than new mbuf remaining memory */ 850 } else if ((temp_mbuf->data_len - offset1) > 851 (mbufs_size - offset2)) { 852 bytes_to_copy = mbufs_size - offset2; 853 mbuf_greater = 1; 854 /* if mbuf data is equal to new mbuf remaining memory */ 855 } else { 856 bytes_to_copy = temp_mbuf->data_len - offset1; 857 mbuf_greater = 0; 858 } 859 860 /* Copy the data */ 861 data = rte_pktmbuf_append(new_mbufs[0], bytes_to_copy); 862 863 rte_memcpy((uint8_t *)data, rte_pktmbuf_mtod_offset(mbuf, 864 void *, offset1), bytes_to_copy); 865 866 /* Set new offsets and the temp buffers */ 867 if (mbuf_greater == -1) { 868 offset1 = 0; 869 offset2 += bytes_to_copy; 870 temp_mbuf = temp_mbuf->next; 871 } else if (mbuf_greater == 1) { 872 offset2 = 0; 873 offset1 += bytes_to_copy; 874 new_mbufs[i]->next = new_mbufs[i + 1]; 875 new_mbufs[0]->nb_segs++; 876 i++; 877 } else { 878 offset1 = 0; 879 offset2 = 0; 880 temp_mbuf = temp_mbuf->next; 881 new_mbufs[i]->next = new_mbufs[i + 1]; 882 if (new_mbufs[i + 1]) 883 new_mbufs[0]->nb_segs++; 884 i++; 885 } 886 } 887 888 /* Copy other required fields */ 889 new_mbufs[0]->ol_flags = mbuf->ol_flags; 890 new_mbufs[0]->packet_type = mbuf->packet_type; 891 new_mbufs[0]->tx_offload = mbuf->tx_offload; 892 893 rte_pktmbuf_free(mbuf); 894 895 return new_mbufs[0]; 896 } 897 898 uint16_t 899 dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) 900 { 901 struct rte_mbuf *mbuf, *mi = NULL; 902 struct rte_mempool *mp; 903 struct dpaa_bp_info *bp_info; 904 struct qm_fd fd_arr[DPAA_TX_BURST_SIZE]; 905 uint32_t frames_to_send, loop, sent = 0; 906 uint16_t state; 907 int ret, realloc_mbuf = 0; 908 uint32_t seqn, index, flags[DPAA_TX_BURST_SIZE] = {0}; 909 910 if (unlikely(!RTE_PER_LCORE(dpaa_io))) { 911 ret = rte_dpaa_portal_init((void *)0); 912 if (ret) { 913 DPAA_PMD_ERR("Failure in affining portal"); 914 return 0; 915 } 916 } 917 918 DPAA_DP_LOG(DEBUG, "Transmitting %d buffers on queue: %p", nb_bufs, q); 919 920 while (nb_bufs) { 921 frames_to_send = (nb_bufs > DPAA_TX_BURST_SIZE) ? 922 DPAA_TX_BURST_SIZE : nb_bufs; 923 for (loop = 0; loop < frames_to_send; loop++) { 924 mbuf = *(bufs++); 925 /* In case the data offset is not multiple of 16, 926 * FMAN can stall because of an errata. So reallocate 927 * the buffer in such case. 928 */ 929 if (dpaa_svr_family == SVR_LS1043A_FAMILY && 930 (mbuf->data_off & 0xFF) != 0x0) 931 realloc_mbuf = 1; 932 seqn = mbuf->seqn; 933 if (seqn != DPAA_INVALID_MBUF_SEQN) { 934 index = seqn - 1; 935 if (DPAA_PER_LCORE_DQRR_HELD & (1 << index)) { 936 flags[loop] = 937 ((index & QM_EQCR_DCA_IDXMASK) << 8); 938 flags[loop] |= QMAN_ENQUEUE_FLAG_DCA; 939 DPAA_PER_LCORE_DQRR_SIZE--; 940 DPAA_PER_LCORE_DQRR_HELD &= 941 ~(1 << index); 942 } 943 } 944 945 if (likely(RTE_MBUF_DIRECT(mbuf))) { 946 mp = mbuf->pool; 947 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp); 948 if (likely(mp->ops_index == 949 bp_info->dpaa_ops_index && 950 mbuf->nb_segs == 1 && 951 realloc_mbuf == 0 && 952 rte_mbuf_refcnt_read(mbuf) == 1)) { 953 DPAA_MBUF_TO_CONTIG_FD(mbuf, 954 &fd_arr[loop], bp_info->bpid); 955 if (mbuf->ol_flags & 956 DPAA_TX_CKSUM_OFFLOAD_MASK) 957 dpaa_unsegmented_checksum(mbuf, 958 &fd_arr[loop]); 959 continue; 960 } 961 } else { 962 mi = rte_mbuf_from_indirect(mbuf); 963 mp = mi->pool; 964 } 965 966 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp); 967 if (unlikely(mp->ops_index != bp_info->dpaa_ops_index || 968 realloc_mbuf == 1)) { 969 struct rte_mbuf *temp_mbuf; 970 971 temp_mbuf = reallocate_mbuf(q, mbuf); 972 if (!temp_mbuf) { 973 /* Set frames_to_send & nb_bufs so 974 * that packets are transmitted till 975 * previous frame. 976 */ 977 frames_to_send = loop; 978 nb_bufs = loop; 979 goto send_pkts; 980 } 981 mbuf = temp_mbuf; 982 realloc_mbuf = 0; 983 } 984 985 state = tx_on_dpaa_pool(mbuf, bp_info, 986 &fd_arr[loop]); 987 if (unlikely(state)) { 988 /* Set frames_to_send & nb_bufs so 989 * that packets are transmitted till 990 * previous frame. 991 */ 992 frames_to_send = loop; 993 nb_bufs = loop; 994 goto send_pkts; 995 } 996 } 997 998 send_pkts: 999 loop = 0; 1000 while (loop < frames_to_send) { 1001 loop += qman_enqueue_multi(q, &fd_arr[loop], 1002 &flags[loop], 1003 frames_to_send - loop); 1004 } 1005 nb_bufs -= frames_to_send; 1006 sent += frames_to_send; 1007 } 1008 1009 DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", sent, q); 1010 1011 return sent; 1012 } 1013 1014 uint16_t dpaa_eth_tx_drop_all(void *q __rte_unused, 1015 struct rte_mbuf **bufs __rte_unused, 1016 uint16_t nb_bufs __rte_unused) 1017 { 1018 DPAA_DP_LOG(DEBUG, "Drop all packets"); 1019 1020 /* Drop all incoming packets. No need to free packets here 1021 * because the rte_eth f/w frees up the packets through tx_buffer 1022 * callback in case this functions returns count less than nb_bufs 1023 */ 1024 return 0; 1025 } 1026