1 /* SPDX-License-Identifier: BSD-3-Clause 2 * 3 * Copyright 2016 Freescale Semiconductor, Inc. All rights reserved. 4 * Copyright 2017 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 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, 94 uint64_t fd_virt_addr) 95 { 96 struct annotations_t *annot = GET_ANNOTATIONS(fd_virt_addr); 97 uint64_t prs = *((uint64_t *)(&annot->parse)) & DPAA_PARSE_MASK; 98 99 DPAA_DP_LOG(DEBUG, " Parsing mbuf: %p with annotations: %p", m, annot); 100 101 switch (prs) { 102 case DPAA_PKT_TYPE_IPV4: 103 m->packet_type = RTE_PTYPE_L2_ETHER | 104 RTE_PTYPE_L3_IPV4; 105 break; 106 case DPAA_PKT_TYPE_IPV6: 107 m->packet_type = RTE_PTYPE_L2_ETHER | 108 RTE_PTYPE_L3_IPV6; 109 break; 110 case DPAA_PKT_TYPE_ETHER: 111 m->packet_type = RTE_PTYPE_L2_ETHER; 112 break; 113 case DPAA_PKT_TYPE_IPV4_FRAG: 114 case DPAA_PKT_TYPE_IPV4_FRAG_UDP: 115 case DPAA_PKT_TYPE_IPV4_FRAG_TCP: 116 case DPAA_PKT_TYPE_IPV4_FRAG_SCTP: 117 m->packet_type = RTE_PTYPE_L2_ETHER | 118 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_FRAG; 119 break; 120 case DPAA_PKT_TYPE_IPV6_FRAG: 121 case DPAA_PKT_TYPE_IPV6_FRAG_UDP: 122 case DPAA_PKT_TYPE_IPV6_FRAG_TCP: 123 case DPAA_PKT_TYPE_IPV6_FRAG_SCTP: 124 m->packet_type = RTE_PTYPE_L2_ETHER | 125 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_FRAG; 126 break; 127 case DPAA_PKT_TYPE_IPV4_EXT: 128 m->packet_type = RTE_PTYPE_L2_ETHER | 129 RTE_PTYPE_L3_IPV4_EXT; 130 break; 131 case DPAA_PKT_TYPE_IPV6_EXT: 132 m->packet_type = RTE_PTYPE_L2_ETHER | 133 RTE_PTYPE_L3_IPV6_EXT; 134 break; 135 case DPAA_PKT_TYPE_IPV4_TCP: 136 m->packet_type = RTE_PTYPE_L2_ETHER | 137 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_TCP; 138 break; 139 case DPAA_PKT_TYPE_IPV6_TCP: 140 m->packet_type = RTE_PTYPE_L2_ETHER | 141 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP; 142 break; 143 case DPAA_PKT_TYPE_IPV4_UDP: 144 m->packet_type = RTE_PTYPE_L2_ETHER | 145 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_UDP; 146 break; 147 case DPAA_PKT_TYPE_IPV6_UDP: 148 m->packet_type = RTE_PTYPE_L2_ETHER | 149 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP; 150 break; 151 case DPAA_PKT_TYPE_IPV4_EXT_UDP: 152 m->packet_type = RTE_PTYPE_L2_ETHER | 153 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_UDP; 154 break; 155 case DPAA_PKT_TYPE_IPV6_EXT_UDP: 156 m->packet_type = RTE_PTYPE_L2_ETHER | 157 RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_UDP; 158 break; 159 case DPAA_PKT_TYPE_IPV4_EXT_TCP: 160 m->packet_type = RTE_PTYPE_L2_ETHER | 161 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_TCP; 162 break; 163 case DPAA_PKT_TYPE_IPV6_EXT_TCP: 164 m->packet_type = RTE_PTYPE_L2_ETHER | 165 RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_TCP; 166 break; 167 case DPAA_PKT_TYPE_IPV4_SCTP: 168 m->packet_type = RTE_PTYPE_L2_ETHER | 169 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_SCTP; 170 break; 171 case DPAA_PKT_TYPE_IPV6_SCTP: 172 m->packet_type = RTE_PTYPE_L2_ETHER | 173 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_SCTP; 174 break; 175 case DPAA_PKT_TYPE_NONE: 176 m->packet_type = 0; 177 break; 178 /* More switch cases can be added */ 179 default: 180 dpaa_slow_parsing(m, prs); 181 } 182 183 m->tx_offload = annot->parse.ip_off[0]; 184 m->tx_offload |= (annot->parse.l4_off - annot->parse.ip_off[0]) 185 << DPAA_PKT_L3_LEN_SHIFT; 186 187 /* Set the hash values */ 188 m->hash.rss = (uint32_t)(annot->hash); 189 /* All packets with Bad checksum are dropped by interface (and 190 * corresponding notification issued to RX error queues). 191 */ 192 m->ol_flags = PKT_RX_RSS_HASH | PKT_RX_IP_CKSUM_GOOD; 193 194 /* Check if Vlan is present */ 195 if (prs & DPAA_PARSE_VLAN_MASK) 196 m->ol_flags |= PKT_RX_VLAN; 197 /* Packet received without stripping the vlan */ 198 } 199 200 static inline void dpaa_checksum(struct rte_mbuf *mbuf) 201 { 202 struct ether_hdr *eth_hdr = rte_pktmbuf_mtod(mbuf, struct ether_hdr *); 203 char *l3_hdr = (char *)eth_hdr + mbuf->l2_len; 204 struct ipv4_hdr *ipv4_hdr = (struct ipv4_hdr *)l3_hdr; 205 struct ipv6_hdr *ipv6_hdr = (struct 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 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 ipv6_hdr *)l3_hdr; 220 221 if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) { 222 struct tcp_hdr *tcp_hdr = (struct tcp_hdr *)(l3_hdr + 223 mbuf->l3_len); 224 tcp_hdr->cksum = 0; 225 if (eth_hdr->ether_type == htons(ETHER_TYPE_IPv4)) 226 tcp_hdr->cksum = rte_ipv4_udptcp_cksum(ipv4_hdr, 227 tcp_hdr); 228 else /* assume ethertype == 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 udp_hdr *udp_hdr = (struct udp_hdr *)(l3_hdr + 234 mbuf->l3_len); 235 udp_hdr->dgram_cksum = 0; 236 if (eth_hdr->ether_type == htons(ETHER_TYPE_IPv4)) 237 udp_hdr->dgram_cksum = rte_ipv4_udptcp_cksum(ipv4_hdr, 238 udp_hdr); 239 else /* assume ethertype == 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 DPAA_DP_LOG(DEBUG, "Received an SG frame"); 311 312 vaddr = rte_dpaa_mem_ptov(qm_fd_addr(fd)); 313 if (!vaddr) { 314 DPAA_PMD_ERR("unable to convert physical address"); 315 return NULL; 316 } 317 sgt = vaddr + fd_offset; 318 sg_temp = &sgt[i++]; 319 hw_sg_to_cpu(sg_temp); 320 temp = (struct rte_mbuf *)((char *)vaddr - bp_info->meta_data_size); 321 sg_vaddr = rte_dpaa_mem_ptov(qm_sg_entry_get64(sg_temp)); 322 323 first_seg = (struct rte_mbuf *)((char *)sg_vaddr - 324 bp_info->meta_data_size); 325 first_seg->data_off = sg_temp->offset; 326 first_seg->data_len = sg_temp->length; 327 first_seg->pkt_len = sg_temp->length; 328 rte_mbuf_refcnt_set(first_seg, 1); 329 330 first_seg->port = ifid; 331 first_seg->nb_segs = 1; 332 first_seg->ol_flags = 0; 333 prev_seg = first_seg; 334 while (i < DPAA_SGT_MAX_ENTRIES) { 335 sg_temp = &sgt[i++]; 336 hw_sg_to_cpu(sg_temp); 337 sg_vaddr = rte_dpaa_mem_ptov(qm_sg_entry_get64(sg_temp)); 338 cur_seg = (struct rte_mbuf *)((char *)sg_vaddr - 339 bp_info->meta_data_size); 340 cur_seg->data_off = sg_temp->offset; 341 cur_seg->data_len = sg_temp->length; 342 first_seg->pkt_len += sg_temp->length; 343 first_seg->nb_segs += 1; 344 rte_mbuf_refcnt_set(cur_seg, 1); 345 prev_seg->next = cur_seg; 346 if (sg_temp->final) { 347 cur_seg->next = NULL; 348 break; 349 } 350 prev_seg = cur_seg; 351 } 352 353 dpaa_eth_packet_info(first_seg, (uint64_t)vaddr); 354 rte_pktmbuf_free_seg(temp); 355 356 return first_seg; 357 } 358 359 static inline struct rte_mbuf * 360 dpaa_eth_fd_to_mbuf(const struct qm_fd *fd, uint32_t ifid) 361 { 362 struct rte_mbuf *mbuf; 363 struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid); 364 void *ptr = rte_dpaa_mem_ptov(qm_fd_addr(fd)); 365 uint8_t format = 366 (fd->opaque & DPAA_FD_FORMAT_MASK) >> DPAA_FD_FORMAT_SHIFT; 367 uint16_t offset; 368 uint32_t length; 369 370 DPAA_DP_LOG(DEBUG, " FD--->MBUF"); 371 372 if (unlikely(format == qm_fd_sg)) 373 return dpaa_eth_sg_to_mbuf(fd, ifid); 374 375 rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF)); 376 377 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT; 378 length = fd->opaque & DPAA_FD_LENGTH_MASK; 379 380 /* Ignoring case when format != qm_fd_contig */ 381 dpaa_display_frame(fd); 382 383 mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size); 384 385 mbuf->data_off = offset; 386 mbuf->data_len = length; 387 mbuf->pkt_len = length; 388 389 mbuf->port = ifid; 390 mbuf->nb_segs = 1; 391 mbuf->ol_flags = 0; 392 mbuf->next = NULL; 393 rte_mbuf_refcnt_set(mbuf, 1); 394 dpaa_eth_packet_info(mbuf, (uint64_t)mbuf->buf_addr); 395 396 return mbuf; 397 } 398 399 enum qman_cb_dqrr_result dpaa_rx_cb(void *event __always_unused, 400 struct qman_portal *qm __always_unused, 401 struct qman_fq *fq, 402 const struct qm_dqrr_entry *dqrr, 403 void **bufs) 404 { 405 const struct qm_fd *fd = &dqrr->fd; 406 407 *bufs = dpaa_eth_fd_to_mbuf(fd, 408 ((struct dpaa_if *)fq->dpaa_intf)->ifid); 409 return qman_cb_dqrr_consume; 410 } 411 412 static uint16_t 413 dpaa_eth_queue_portal_rx(struct qman_fq *fq, 414 struct rte_mbuf **bufs, 415 uint16_t nb_bufs) 416 { 417 int ret; 418 419 if (unlikely(fq->qp == NULL)) { 420 ret = rte_dpaa_portal_fq_init((void *)0, fq); 421 if (ret) { 422 DPAA_PMD_ERR("Failure in affining portal %d", ret); 423 return 0; 424 } 425 } 426 427 return qman_portal_poll_rx(nb_bufs, (void **)bufs, fq->qp); 428 } 429 430 enum qman_cb_dqrr_result 431 dpaa_rx_cb_parallel(void *event, 432 struct qman_portal *qm __always_unused, 433 struct qman_fq *fq, 434 const struct qm_dqrr_entry *dqrr, 435 void **bufs) 436 { 437 u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid; 438 struct rte_mbuf *mbuf; 439 struct rte_event *ev = (struct rte_event *)event; 440 441 mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid); 442 ev->event_ptr = (void *)mbuf; 443 ev->flow_id = fq->ev.flow_id; 444 ev->sub_event_type = fq->ev.sub_event_type; 445 ev->event_type = RTE_EVENT_TYPE_ETHDEV; 446 ev->op = RTE_EVENT_OP_NEW; 447 ev->sched_type = fq->ev.sched_type; 448 ev->queue_id = fq->ev.queue_id; 449 ev->priority = fq->ev.priority; 450 ev->impl_opaque = (uint8_t)DPAA_INVALID_MBUF_SEQN; 451 mbuf->seqn = DPAA_INVALID_MBUF_SEQN; 452 *bufs = mbuf; 453 454 return qman_cb_dqrr_consume; 455 } 456 457 enum qman_cb_dqrr_result 458 dpaa_rx_cb_atomic(void *event, 459 struct qman_portal *qm __always_unused, 460 struct qman_fq *fq, 461 const struct qm_dqrr_entry *dqrr, 462 void **bufs) 463 { 464 u8 index; 465 u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid; 466 struct rte_mbuf *mbuf; 467 struct rte_event *ev = (struct rte_event *)event; 468 469 mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid); 470 ev->event_ptr = (void *)mbuf; 471 ev->flow_id = fq->ev.flow_id; 472 ev->sub_event_type = fq->ev.sub_event_type; 473 ev->event_type = RTE_EVENT_TYPE_ETHDEV; 474 ev->op = RTE_EVENT_OP_NEW; 475 ev->sched_type = fq->ev.sched_type; 476 ev->queue_id = fq->ev.queue_id; 477 ev->priority = fq->ev.priority; 478 479 /* Save active dqrr entries */ 480 index = DQRR_PTR2IDX(dqrr); 481 DPAA_PER_LCORE_DQRR_SIZE++; 482 DPAA_PER_LCORE_DQRR_HELD |= 1 << index; 483 DPAA_PER_LCORE_DQRR_MBUF(index) = mbuf; 484 ev->impl_opaque = index + 1; 485 mbuf->seqn = (uint32_t)index + 1; 486 *bufs = mbuf; 487 488 return qman_cb_dqrr_defer; 489 } 490 491 uint16_t dpaa_eth_queue_rx(void *q, 492 struct rte_mbuf **bufs, 493 uint16_t nb_bufs) 494 { 495 struct qman_fq *fq = q; 496 struct qm_dqrr_entry *dq; 497 uint32_t num_rx = 0, ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid; 498 int ret; 499 500 if (likely(fq->is_static)) 501 return dpaa_eth_queue_portal_rx(fq, bufs, nb_bufs); 502 503 ret = rte_dpaa_portal_init((void *)0); 504 if (ret) { 505 DPAA_PMD_ERR("Failure in affining portal"); 506 return 0; 507 } 508 509 ret = qman_set_vdq(fq, (nb_bufs > DPAA_MAX_DEQUEUE_NUM_FRAMES) ? 510 DPAA_MAX_DEQUEUE_NUM_FRAMES : nb_bufs); 511 if (ret) 512 return 0; 513 514 do { 515 dq = qman_dequeue(fq); 516 if (!dq) 517 continue; 518 bufs[num_rx++] = dpaa_eth_fd_to_mbuf(&dq->fd, ifid); 519 qman_dqrr_consume(fq, dq); 520 } while (fq->flags & QMAN_FQ_STATE_VDQCR); 521 522 return num_rx; 523 } 524 525 static void *dpaa_get_pktbuf(struct dpaa_bp_info *bp_info) 526 { 527 int ret; 528 uint64_t buf = 0; 529 struct bm_buffer bufs; 530 531 ret = bman_acquire(bp_info->bp, &bufs, 1, 0); 532 if (ret <= 0) { 533 DPAA_PMD_WARN("Failed to allocate buffers %d", ret); 534 return (void *)buf; 535 } 536 537 DPAA_DP_LOG(DEBUG, "got buffer 0x%lx from pool %d", 538 (uint64_t)bufs.addr, bufs.bpid); 539 540 buf = (uint64_t)rte_dpaa_mem_ptov(bufs.addr) - bp_info->meta_data_size; 541 if (!buf) 542 goto out; 543 544 out: 545 return (void *)buf; 546 } 547 548 static struct rte_mbuf *dpaa_get_dmable_mbuf(struct rte_mbuf *mbuf, 549 struct dpaa_if *dpaa_intf) 550 { 551 struct rte_mbuf *dpaa_mbuf; 552 553 /* allocate pktbuffer on bpid for dpaa port */ 554 dpaa_mbuf = dpaa_get_pktbuf(dpaa_intf->bp_info); 555 if (!dpaa_mbuf) 556 return NULL; 557 558 memcpy((uint8_t *)(dpaa_mbuf->buf_addr) + RTE_PKTMBUF_HEADROOM, (void *) 559 ((uint8_t *)(mbuf->buf_addr) + mbuf->data_off), mbuf->pkt_len); 560 561 /* Copy only the required fields */ 562 dpaa_mbuf->data_off = RTE_PKTMBUF_HEADROOM; 563 dpaa_mbuf->pkt_len = mbuf->pkt_len; 564 dpaa_mbuf->ol_flags = mbuf->ol_flags; 565 dpaa_mbuf->packet_type = mbuf->packet_type; 566 dpaa_mbuf->tx_offload = mbuf->tx_offload; 567 rte_pktmbuf_free(mbuf); 568 return dpaa_mbuf; 569 } 570 571 int 572 dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf, 573 struct qm_fd *fd, 574 uint32_t bpid) 575 { 576 struct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL; 577 struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(bpid); 578 struct rte_mbuf *temp, *mi; 579 struct qm_sg_entry *sg_temp, *sgt; 580 int i = 0; 581 582 DPAA_DP_LOG(DEBUG, "Creating SG FD to transmit"); 583 584 temp = rte_pktmbuf_alloc(bp_info->mp); 585 if (!temp) { 586 DPAA_PMD_ERR("Failure in allocation of mbuf"); 587 return -1; 588 } 589 if (temp->buf_len < ((mbuf->nb_segs * sizeof(struct qm_sg_entry)) 590 + temp->data_off)) { 591 DPAA_PMD_ERR("Insufficient space in mbuf for SG entries"); 592 return -1; 593 } 594 595 fd->cmd = 0; 596 fd->opaque_addr = 0; 597 598 if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) { 599 if (!mbuf->packet_type) { 600 struct rte_net_hdr_lens hdr_lens; 601 602 mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens, 603 RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK 604 | RTE_PTYPE_L4_MASK); 605 mbuf->l2_len = hdr_lens.l2_len; 606 mbuf->l3_len = hdr_lens.l3_len; 607 } 608 if (temp->data_off < DEFAULT_TX_ICEOF 609 + sizeof(struct dpaa_eth_parse_results_t)) 610 temp->data_off = DEFAULT_TX_ICEOF 611 + sizeof(struct dpaa_eth_parse_results_t); 612 dcbz_64(temp->buf_addr); 613 dpaa_checksum_offload(mbuf, fd, temp->buf_addr); 614 } 615 616 sgt = temp->buf_addr + temp->data_off; 617 fd->format = QM_FD_SG; 618 fd->addr = temp->buf_iova; 619 fd->offset = temp->data_off; 620 fd->bpid = bpid; 621 fd->length20 = mbuf->pkt_len; 622 623 while (i < DPAA_SGT_MAX_ENTRIES) { 624 sg_temp = &sgt[i++]; 625 sg_temp->opaque = 0; 626 sg_temp->val = 0; 627 sg_temp->addr = cur_seg->buf_iova; 628 sg_temp->offset = cur_seg->data_off; 629 sg_temp->length = cur_seg->data_len; 630 if (RTE_MBUF_DIRECT(cur_seg)) { 631 if (rte_mbuf_refcnt_read(cur_seg) > 1) { 632 /*If refcnt > 1, invalid bpid is set to ensure 633 * buffer is not freed by HW. 634 */ 635 sg_temp->bpid = 0xff; 636 rte_mbuf_refcnt_update(cur_seg, -1); 637 } else { 638 sg_temp->bpid = 639 DPAA_MEMPOOL_TO_BPID(cur_seg->pool); 640 } 641 cur_seg = cur_seg->next; 642 } else { 643 /* Get owner MBUF from indirect buffer */ 644 mi = rte_mbuf_from_indirect(cur_seg); 645 if (rte_mbuf_refcnt_read(mi) > 1) { 646 /*If refcnt > 1, invalid bpid is set to ensure 647 * owner buffer is not freed by HW. 648 */ 649 sg_temp->bpid = 0xff; 650 } else { 651 sg_temp->bpid = DPAA_MEMPOOL_TO_BPID(mi->pool); 652 rte_mbuf_refcnt_update(mi, 1); 653 } 654 prev_seg = cur_seg; 655 cur_seg = cur_seg->next; 656 prev_seg->next = NULL; 657 rte_pktmbuf_free(prev_seg); 658 } 659 if (cur_seg == NULL) { 660 sg_temp->final = 1; 661 cpu_to_hw_sg(sg_temp); 662 break; 663 } 664 cpu_to_hw_sg(sg_temp); 665 } 666 return 0; 667 } 668 669 /* Handle mbufs which are not segmented (non SG) */ 670 static inline void 671 tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf, 672 struct dpaa_bp_info *bp_info, 673 struct qm_fd *fd_arr) 674 { 675 struct rte_mbuf *mi = NULL; 676 677 if (RTE_MBUF_DIRECT(mbuf)) { 678 if (rte_mbuf_refcnt_read(mbuf) > 1) { 679 /* In case of direct mbuf and mbuf being cloned, 680 * BMAN should _not_ release buffer. 681 */ 682 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff); 683 /* Buffer should be releasd by EAL */ 684 rte_mbuf_refcnt_update(mbuf, -1); 685 } else { 686 /* In case of direct mbuf and no cloning, mbuf can be 687 * released by BMAN. 688 */ 689 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid); 690 } 691 } else { 692 /* This is data-containing core mbuf: 'mi' */ 693 mi = rte_mbuf_from_indirect(mbuf); 694 if (rte_mbuf_refcnt_read(mi) > 1) { 695 /* In case of indirect mbuf, and mbuf being cloned, 696 * BMAN should _not_ release it and let EAL release 697 * it through pktmbuf_free below. 698 */ 699 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff); 700 } else { 701 /* In case of indirect mbuf, and no cloning, core mbuf 702 * should be released by BMAN. 703 * Increate refcnt of core mbuf so that when 704 * pktmbuf_free is called and mbuf is released, EAL 705 * doesn't try to release core mbuf which would have 706 * been released by BMAN. 707 */ 708 rte_mbuf_refcnt_update(mi, 1); 709 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid); 710 } 711 rte_pktmbuf_free(mbuf); 712 } 713 714 if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) 715 dpaa_unsegmented_checksum(mbuf, fd_arr); 716 } 717 718 /* Handle all mbufs on dpaa BMAN managed pool */ 719 static inline uint16_t 720 tx_on_dpaa_pool(struct rte_mbuf *mbuf, 721 struct dpaa_bp_info *bp_info, 722 struct qm_fd *fd_arr) 723 { 724 DPAA_DP_LOG(DEBUG, "BMAN offloaded buffer, mbuf: %p", mbuf); 725 726 if (mbuf->nb_segs == 1) { 727 /* Case for non-segmented buffers */ 728 tx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr); 729 } else if (mbuf->nb_segs > 1 && 730 mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) { 731 if (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info->bpid)) { 732 DPAA_PMD_DEBUG("Unable to create Scatter Gather FD"); 733 return 1; 734 } 735 } else { 736 DPAA_PMD_DEBUG("Number of Segments not supported"); 737 return 1; 738 } 739 740 return 0; 741 } 742 743 /* Handle all mbufs on an external pool (non-dpaa) */ 744 static inline uint16_t 745 tx_on_external_pool(struct qman_fq *txq, struct rte_mbuf *mbuf, 746 struct qm_fd *fd_arr) 747 { 748 struct dpaa_if *dpaa_intf = txq->dpaa_intf; 749 struct rte_mbuf *dmable_mbuf; 750 751 DPAA_DP_LOG(DEBUG, "Non-BMAN offloaded buffer." 752 "Allocating an offloaded buffer"); 753 dmable_mbuf = dpaa_get_dmable_mbuf(mbuf, dpaa_intf); 754 if (!dmable_mbuf) { 755 DPAA_DP_LOG(DEBUG, "no dpaa buffers."); 756 return 1; 757 } 758 759 DPAA_MBUF_TO_CONTIG_FD(dmable_mbuf, fd_arr, dpaa_intf->bp_info->bpid); 760 761 return 0; 762 } 763 764 uint16_t 765 dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) 766 { 767 struct rte_mbuf *mbuf, *mi = NULL; 768 struct rte_mempool *mp; 769 struct dpaa_bp_info *bp_info; 770 struct qm_fd fd_arr[DPAA_TX_BURST_SIZE]; 771 uint32_t frames_to_send, loop, sent = 0; 772 uint16_t state; 773 int ret; 774 uint32_t seqn, index, flags[DPAA_TX_BURST_SIZE] = {0}; 775 776 ret = rte_dpaa_portal_init((void *)0); 777 if (ret) { 778 DPAA_PMD_ERR("Failure in affining portal"); 779 return 0; 780 } 781 782 DPAA_DP_LOG(DEBUG, "Transmitting %d buffers on queue: %p", nb_bufs, q); 783 784 while (nb_bufs) { 785 frames_to_send = (nb_bufs > DPAA_TX_BURST_SIZE) ? 786 DPAA_TX_BURST_SIZE : nb_bufs; 787 for (loop = 0; loop < frames_to_send; loop++) { 788 mbuf = *(bufs++); 789 if (likely(RTE_MBUF_DIRECT(mbuf))) { 790 mp = mbuf->pool; 791 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp); 792 if (likely(mp->ops_index == 793 bp_info->dpaa_ops_index && 794 mbuf->nb_segs == 1 && 795 rte_mbuf_refcnt_read(mbuf) == 1)) { 796 DPAA_MBUF_TO_CONTIG_FD(mbuf, 797 &fd_arr[loop], bp_info->bpid); 798 if (mbuf->ol_flags & 799 DPAA_TX_CKSUM_OFFLOAD_MASK) 800 dpaa_unsegmented_checksum(mbuf, 801 &fd_arr[loop]); 802 continue; 803 } 804 } else { 805 mi = rte_mbuf_from_indirect(mbuf); 806 mp = mi->pool; 807 } 808 809 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp); 810 if (likely(mp->ops_index == bp_info->dpaa_ops_index)) { 811 state = tx_on_dpaa_pool(mbuf, bp_info, 812 &fd_arr[loop]); 813 if (unlikely(state)) { 814 /* Set frames_to_send & nb_bufs so 815 * that packets are transmitted till 816 * previous frame. 817 */ 818 frames_to_send = loop; 819 nb_bufs = loop; 820 goto send_pkts; 821 } 822 } else { 823 state = tx_on_external_pool(q, mbuf, 824 &fd_arr[loop]); 825 if (unlikely(state)) { 826 /* Set frames_to_send & nb_bufs so 827 * that packets are transmitted till 828 * previous frame. 829 */ 830 frames_to_send = loop; 831 nb_bufs = loop; 832 goto send_pkts; 833 } 834 } 835 seqn = mbuf->seqn; 836 if (seqn != DPAA_INVALID_MBUF_SEQN) { 837 index = seqn - 1; 838 if (DPAA_PER_LCORE_DQRR_HELD & (1 << index)) { 839 flags[loop] = 840 ((index & QM_EQCR_DCA_IDXMASK) << 8); 841 flags[loop] |= QMAN_ENQUEUE_FLAG_DCA; 842 DPAA_PER_LCORE_DQRR_SIZE--; 843 DPAA_PER_LCORE_DQRR_HELD &= 844 ~(1 << index); 845 } 846 } 847 } 848 849 send_pkts: 850 loop = 0; 851 while (loop < frames_to_send) { 852 loop += qman_enqueue_multi(q, &fd_arr[loop], 853 &flags[loop], 854 frames_to_send - loop); 855 } 856 nb_bufs -= frames_to_send; 857 sent += frames_to_send; 858 } 859 860 DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", sent, q); 861 862 return sent; 863 } 864 865 uint16_t dpaa_eth_tx_drop_all(void *q __rte_unused, 866 struct rte_mbuf **bufs __rte_unused, 867 uint16_t nb_bufs __rte_unused) 868 { 869 DPAA_DP_LOG(DEBUG, "Drop all packets"); 870 871 /* Drop all incoming packets. No need to free packets here 872 * because the rte_eth f/w frees up the packets through tx_buffer 873 * callback in case this functions returns count less than nb_bufs 874 */ 875 return 0; 876 } 877