1 /*- 2 * BSD LICENSE 3 * 4 * Copyright 2016 Freescale Semiconductor, Inc. All rights reserved. 5 * Copyright 2017 NXP. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Freescale Semiconductor, Inc nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* System headers */ 35 #include <inttypes.h> 36 #include <unistd.h> 37 #include <stdio.h> 38 #include <limits.h> 39 #include <sched.h> 40 #include <pthread.h> 41 42 #include <rte_byteorder.h> 43 #include <rte_common.h> 44 #include <rte_interrupts.h> 45 #include <rte_log.h> 46 #include <rte_debug.h> 47 #include <rte_pci.h> 48 #include <rte_atomic.h> 49 #include <rte_branch_prediction.h> 50 #include <rte_memory.h> 51 #include <rte_tailq.h> 52 #include <rte_eal.h> 53 #include <rte_alarm.h> 54 #include <rte_ether.h> 55 #include <rte_ethdev.h> 56 #include <rte_malloc.h> 57 #include <rte_ring.h> 58 #include <rte_ip.h> 59 #include <rte_tcp.h> 60 #include <rte_udp.h> 61 62 #include "dpaa_ethdev.h" 63 #include "dpaa_rxtx.h" 64 #include <rte_dpaa_bus.h> 65 #include <dpaa_mempool.h> 66 67 #include <fsl_usd.h> 68 #include <fsl_qman.h> 69 #include <fsl_bman.h> 70 #include <of.h> 71 #include <netcfg.h> 72 73 #define DPAA_MBUF_TO_CONTIG_FD(_mbuf, _fd, _bpid) \ 74 do { \ 75 (_fd)->cmd = 0; \ 76 (_fd)->opaque_addr = 0; \ 77 (_fd)->opaque = QM_FD_CONTIG << DPAA_FD_FORMAT_SHIFT; \ 78 (_fd)->opaque |= ((_mbuf)->data_off) << DPAA_FD_OFFSET_SHIFT; \ 79 (_fd)->opaque |= (_mbuf)->pkt_len; \ 80 (_fd)->addr = (_mbuf)->buf_iova; \ 81 (_fd)->bpid = _bpid; \ 82 } while (0) 83 84 #if (defined RTE_LIBRTE_DPAA_DEBUG_DRIVER) 85 void dpaa_display_frame(const struct qm_fd *fd) 86 { 87 int ii; 88 char *ptr; 89 90 printf("%s::bpid %x addr %08x%08x, format %d off %d, len %d stat %x\n", 91 __func__, fd->bpid, fd->addr_hi, fd->addr_lo, fd->format, 92 fd->offset, fd->length20, fd->status); 93 94 ptr = (char *)rte_dpaa_mem_ptov(fd->addr); 95 ptr += fd->offset; 96 printf("%02x ", *ptr); 97 for (ii = 1; ii < fd->length20; ii++) { 98 printf("%02x ", *ptr); 99 if ((ii % 16) == 0) 100 printf("\n"); 101 ptr++; 102 } 103 printf("\n"); 104 } 105 #else 106 #define dpaa_display_frame(a) 107 #endif 108 109 static inline void dpaa_slow_parsing(struct rte_mbuf *m __rte_unused, 110 uint64_t prs __rte_unused) 111 { 112 DPAA_DP_LOG(DEBUG, "Slow parsing"); 113 /*TBD:XXX: to be implemented*/ 114 } 115 116 static inline void dpaa_eth_packet_info(struct rte_mbuf *m, 117 uint64_t fd_virt_addr) 118 { 119 struct annotations_t *annot = GET_ANNOTATIONS(fd_virt_addr); 120 uint64_t prs = *((uint64_t *)(&annot->parse)) & DPAA_PARSE_MASK; 121 122 DPAA_DP_LOG(DEBUG, " Parsing mbuf: %p with annotations: %p", m, annot); 123 124 switch (prs) { 125 case DPAA_PKT_TYPE_NONE: 126 m->packet_type = 0; 127 break; 128 case DPAA_PKT_TYPE_ETHER: 129 m->packet_type = RTE_PTYPE_L2_ETHER; 130 break; 131 case DPAA_PKT_TYPE_IPV4: 132 m->packet_type = RTE_PTYPE_L2_ETHER | 133 RTE_PTYPE_L3_IPV4; 134 break; 135 case DPAA_PKT_TYPE_IPV6: 136 m->packet_type = RTE_PTYPE_L2_ETHER | 137 RTE_PTYPE_L3_IPV6; 138 break; 139 case DPAA_PKT_TYPE_IPV4_FRAG: 140 case DPAA_PKT_TYPE_IPV4_FRAG_UDP: 141 case DPAA_PKT_TYPE_IPV4_FRAG_TCP: 142 case DPAA_PKT_TYPE_IPV4_FRAG_SCTP: 143 m->packet_type = RTE_PTYPE_L2_ETHER | 144 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_FRAG; 145 break; 146 case DPAA_PKT_TYPE_IPV6_FRAG: 147 case DPAA_PKT_TYPE_IPV6_FRAG_UDP: 148 case DPAA_PKT_TYPE_IPV6_FRAG_TCP: 149 case DPAA_PKT_TYPE_IPV6_FRAG_SCTP: 150 m->packet_type = RTE_PTYPE_L2_ETHER | 151 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_FRAG; 152 break; 153 case DPAA_PKT_TYPE_IPV4_EXT: 154 m->packet_type = RTE_PTYPE_L2_ETHER | 155 RTE_PTYPE_L3_IPV4_EXT; 156 break; 157 case DPAA_PKT_TYPE_IPV6_EXT: 158 m->packet_type = RTE_PTYPE_L2_ETHER | 159 RTE_PTYPE_L3_IPV6_EXT; 160 break; 161 case DPAA_PKT_TYPE_IPV4_TCP: 162 m->packet_type = RTE_PTYPE_L2_ETHER | 163 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_TCP; 164 break; 165 case DPAA_PKT_TYPE_IPV6_TCP: 166 m->packet_type = RTE_PTYPE_L2_ETHER | 167 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP; 168 break; 169 case DPAA_PKT_TYPE_IPV4_UDP: 170 m->packet_type = RTE_PTYPE_L2_ETHER | 171 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_UDP; 172 break; 173 case DPAA_PKT_TYPE_IPV6_UDP: 174 m->packet_type = RTE_PTYPE_L2_ETHER | 175 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP; 176 break; 177 case DPAA_PKT_TYPE_IPV4_EXT_UDP: 178 m->packet_type = RTE_PTYPE_L2_ETHER | 179 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_UDP; 180 break; 181 case DPAA_PKT_TYPE_IPV6_EXT_UDP: 182 m->packet_type = RTE_PTYPE_L2_ETHER | 183 RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_UDP; 184 break; 185 case DPAA_PKT_TYPE_IPV4_EXT_TCP: 186 m->packet_type = RTE_PTYPE_L2_ETHER | 187 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_TCP; 188 break; 189 case DPAA_PKT_TYPE_IPV6_EXT_TCP: 190 m->packet_type = RTE_PTYPE_L2_ETHER | 191 RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_TCP; 192 break; 193 case DPAA_PKT_TYPE_IPV4_SCTP: 194 m->packet_type = RTE_PTYPE_L2_ETHER | 195 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_SCTP; 196 break; 197 case DPAA_PKT_TYPE_IPV6_SCTP: 198 m->packet_type = RTE_PTYPE_L2_ETHER | 199 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_SCTP; 200 break; 201 /* More switch cases can be added */ 202 default: 203 dpaa_slow_parsing(m, prs); 204 } 205 206 m->tx_offload = annot->parse.ip_off[0]; 207 m->tx_offload |= (annot->parse.l4_off - annot->parse.ip_off[0]) 208 << DPAA_PKT_L3_LEN_SHIFT; 209 210 /* Set the hash values */ 211 m->hash.rss = (uint32_t)(rte_be_to_cpu_64(annot->hash)); 212 m->ol_flags = PKT_RX_RSS_HASH; 213 /* All packets with Bad checksum are dropped by interface (and 214 * corresponding notification issued to RX error queues). 215 */ 216 m->ol_flags |= PKT_RX_IP_CKSUM_GOOD; 217 218 /* Check if Vlan is present */ 219 if (prs & DPAA_PARSE_VLAN_MASK) 220 m->ol_flags |= PKT_RX_VLAN; 221 /* Packet received without stripping the vlan */ 222 } 223 224 static inline void dpaa_checksum(struct rte_mbuf *mbuf) 225 { 226 struct ether_hdr *eth_hdr = rte_pktmbuf_mtod(mbuf, struct ether_hdr *); 227 char *l3_hdr = (char *)eth_hdr + mbuf->l2_len; 228 struct ipv4_hdr *ipv4_hdr = (struct ipv4_hdr *)l3_hdr; 229 struct ipv6_hdr *ipv6_hdr = (struct ipv6_hdr *)l3_hdr; 230 231 DPAA_DP_LOG(DEBUG, "Calculating checksum for mbuf: %p", mbuf); 232 233 if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) || 234 ((mbuf->packet_type & RTE_PTYPE_L3_MASK) == 235 RTE_PTYPE_L3_IPV4_EXT)) { 236 ipv4_hdr = (struct ipv4_hdr *)l3_hdr; 237 ipv4_hdr->hdr_checksum = 0; 238 ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr); 239 } else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == 240 RTE_PTYPE_L3_IPV6) || 241 ((mbuf->packet_type & RTE_PTYPE_L3_MASK) == 242 RTE_PTYPE_L3_IPV6_EXT)) 243 ipv6_hdr = (struct ipv6_hdr *)l3_hdr; 244 245 if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) { 246 struct tcp_hdr *tcp_hdr = (struct tcp_hdr *)(l3_hdr + 247 mbuf->l3_len); 248 tcp_hdr->cksum = 0; 249 if (eth_hdr->ether_type == htons(ETHER_TYPE_IPv4)) 250 tcp_hdr->cksum = rte_ipv4_udptcp_cksum(ipv4_hdr, 251 tcp_hdr); 252 else /* assume ethertype == ETHER_TYPE_IPv6 */ 253 tcp_hdr->cksum = rte_ipv6_udptcp_cksum(ipv6_hdr, 254 tcp_hdr); 255 } else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == 256 RTE_PTYPE_L4_UDP) { 257 struct udp_hdr *udp_hdr = (struct udp_hdr *)(l3_hdr + 258 mbuf->l3_len); 259 udp_hdr->dgram_cksum = 0; 260 if (eth_hdr->ether_type == htons(ETHER_TYPE_IPv4)) 261 udp_hdr->dgram_cksum = rte_ipv4_udptcp_cksum(ipv4_hdr, 262 udp_hdr); 263 else /* assume ethertype == ETHER_TYPE_IPv6 */ 264 udp_hdr->dgram_cksum = rte_ipv6_udptcp_cksum(ipv6_hdr, 265 udp_hdr); 266 } 267 } 268 269 static inline void dpaa_checksum_offload(struct rte_mbuf *mbuf, 270 struct qm_fd *fd, char *prs_buf) 271 { 272 struct dpaa_eth_parse_results_t *prs; 273 274 DPAA_DP_LOG(DEBUG, " Offloading checksum for mbuf: %p", mbuf); 275 276 prs = GET_TX_PRS(prs_buf); 277 prs->l3r = 0; 278 prs->l4r = 0; 279 if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) || 280 ((mbuf->packet_type & RTE_PTYPE_L3_MASK) == 281 RTE_PTYPE_L3_IPV4_EXT)) 282 prs->l3r = DPAA_L3_PARSE_RESULT_IPV4; 283 else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == 284 RTE_PTYPE_L3_IPV6) || 285 ((mbuf->packet_type & RTE_PTYPE_L3_MASK) == 286 RTE_PTYPE_L3_IPV6_EXT)) 287 prs->l3r = DPAA_L3_PARSE_RESULT_IPV6; 288 289 if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) 290 prs->l4r = DPAA_L4_PARSE_RESULT_TCP; 291 else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_UDP) 292 prs->l4r = DPAA_L4_PARSE_RESULT_UDP; 293 294 prs->ip_off[0] = mbuf->l2_len; 295 prs->l4_off = mbuf->l3_len + mbuf->l2_len; 296 /* Enable L3 (and L4, if TCP or UDP) HW checksum*/ 297 fd->cmd = DPAA_FD_CMD_RPD | DPAA_FD_CMD_DTC; 298 } 299 300 struct rte_mbuf * 301 dpaa_eth_sg_to_mbuf(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 *dpaa_eth_fd_to_mbuf(struct qm_fd *fd, 360 uint32_t ifid) 361 { 362 struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid); 363 struct rte_mbuf *mbuf; 364 void *ptr; 365 uint8_t format = 366 (fd->opaque & DPAA_FD_FORMAT_MASK) >> DPAA_FD_FORMAT_SHIFT; 367 uint16_t offset = 368 (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT; 369 uint32_t length = fd->opaque & DPAA_FD_LENGTH_MASK; 370 371 DPAA_DP_LOG(DEBUG, " FD--->MBUF"); 372 373 if (unlikely(format == qm_fd_sg)) 374 return dpaa_eth_sg_to_mbuf(fd, ifid); 375 376 /* Ignoring case when format != qm_fd_contig */ 377 dpaa_display_frame(fd); 378 ptr = rte_dpaa_mem_ptov(fd->addr); 379 /* Ignoring case when ptr would be NULL. That is only possible incase 380 * of a corrupted packet 381 */ 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 rte_prefetch0((void *)((uint8_t *)ptr + offset)); 387 388 mbuf->data_off = offset; 389 mbuf->data_len = length; 390 mbuf->pkt_len = length; 391 392 mbuf->port = ifid; 393 mbuf->nb_segs = 1; 394 mbuf->ol_flags = 0; 395 mbuf->next = NULL; 396 rte_mbuf_refcnt_set(mbuf, 1); 397 dpaa_eth_packet_info(mbuf, (uint64_t)mbuf->buf_addr); 398 399 return mbuf; 400 } 401 402 uint16_t dpaa_eth_queue_rx(void *q, 403 struct rte_mbuf **bufs, 404 uint16_t nb_bufs) 405 { 406 struct qman_fq *fq = q; 407 struct qm_dqrr_entry *dq; 408 uint32_t num_rx = 0, ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid; 409 int ret; 410 411 ret = rte_dpaa_portal_init((void *)0); 412 if (ret) { 413 DPAA_PMD_ERR("Failure in affining portal"); 414 return 0; 415 } 416 417 ret = qman_set_vdq(fq, (nb_bufs > DPAA_MAX_DEQUEUE_NUM_FRAMES) ? 418 DPAA_MAX_DEQUEUE_NUM_FRAMES : nb_bufs); 419 if (ret) 420 return 0; 421 422 do { 423 dq = qman_dequeue(fq); 424 if (!dq) 425 continue; 426 bufs[num_rx++] = dpaa_eth_fd_to_mbuf(&dq->fd, ifid); 427 qman_dqrr_consume(fq, dq); 428 } while (fq->flags & QMAN_FQ_STATE_VDQCR); 429 430 return num_rx; 431 } 432 433 static void *dpaa_get_pktbuf(struct dpaa_bp_info *bp_info) 434 { 435 int ret; 436 uint64_t buf = 0; 437 struct bm_buffer bufs; 438 439 ret = bman_acquire(bp_info->bp, &bufs, 1, 0); 440 if (ret <= 0) { 441 DPAA_PMD_WARN("Failed to allocate buffers %d", ret); 442 return (void *)buf; 443 } 444 445 DPAA_DP_LOG(DEBUG, "got buffer 0x%lx from pool %d", 446 (uint64_t)bufs.addr, bufs.bpid); 447 448 buf = (uint64_t)rte_dpaa_mem_ptov(bufs.addr) - bp_info->meta_data_size; 449 if (!buf) 450 goto out; 451 452 out: 453 return (void *)buf; 454 } 455 456 static struct rte_mbuf *dpaa_get_dmable_mbuf(struct rte_mbuf *mbuf, 457 struct dpaa_if *dpaa_intf) 458 { 459 struct rte_mbuf *dpaa_mbuf; 460 461 /* allocate pktbuffer on bpid for dpaa port */ 462 dpaa_mbuf = dpaa_get_pktbuf(dpaa_intf->bp_info); 463 if (!dpaa_mbuf) 464 return NULL; 465 466 memcpy((uint8_t *)(dpaa_mbuf->buf_addr) + mbuf->data_off, (void *) 467 ((uint8_t *)(mbuf->buf_addr) + mbuf->data_off), mbuf->pkt_len); 468 469 /* Copy only the required fields */ 470 dpaa_mbuf->data_off = mbuf->data_off; 471 dpaa_mbuf->pkt_len = mbuf->pkt_len; 472 dpaa_mbuf->ol_flags = mbuf->ol_flags; 473 dpaa_mbuf->packet_type = mbuf->packet_type; 474 dpaa_mbuf->tx_offload = mbuf->tx_offload; 475 rte_pktmbuf_free(mbuf); 476 return dpaa_mbuf; 477 } 478 479 int 480 dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf, 481 struct qm_fd *fd, 482 uint32_t bpid) 483 { 484 struct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL; 485 struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(bpid); 486 struct rte_mbuf *temp, *mi; 487 struct qm_sg_entry *sg_temp, *sgt; 488 int i = 0; 489 490 DPAA_DP_LOG(DEBUG, "Creating SG FD to transmit"); 491 492 temp = rte_pktmbuf_alloc(bp_info->mp); 493 if (!temp) { 494 DPAA_PMD_ERR("Failure in allocation of mbuf"); 495 return -1; 496 } 497 if (temp->buf_len < ((mbuf->nb_segs * sizeof(struct qm_sg_entry)) 498 + temp->data_off)) { 499 DPAA_PMD_ERR("Insufficient space in mbuf for SG entries"); 500 return -1; 501 } 502 503 fd->cmd = 0; 504 fd->opaque_addr = 0; 505 506 if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) { 507 if (temp->data_off < DEFAULT_TX_ICEOF 508 + sizeof(struct dpaa_eth_parse_results_t)) 509 temp->data_off = DEFAULT_TX_ICEOF 510 + sizeof(struct dpaa_eth_parse_results_t); 511 dcbz_64(temp->buf_addr); 512 dpaa_checksum_offload(mbuf, fd, temp->buf_addr); 513 } 514 515 sgt = temp->buf_addr + temp->data_off; 516 fd->format = QM_FD_SG; 517 fd->addr = temp->buf_iova; 518 fd->offset = temp->data_off; 519 fd->bpid = bpid; 520 fd->length20 = mbuf->pkt_len; 521 522 while (i < DPAA_SGT_MAX_ENTRIES) { 523 sg_temp = &sgt[i++]; 524 sg_temp->opaque = 0; 525 sg_temp->val = 0; 526 sg_temp->addr = cur_seg->buf_iova; 527 sg_temp->offset = cur_seg->data_off; 528 sg_temp->length = cur_seg->data_len; 529 if (RTE_MBUF_DIRECT(cur_seg)) { 530 if (rte_mbuf_refcnt_read(cur_seg) > 1) { 531 /*If refcnt > 1, invalid bpid is set to ensure 532 * buffer is not freed by HW. 533 */ 534 sg_temp->bpid = 0xff; 535 rte_mbuf_refcnt_update(cur_seg, -1); 536 } else { 537 sg_temp->bpid = 538 DPAA_MEMPOOL_TO_BPID(cur_seg->pool); 539 } 540 cur_seg = cur_seg->next; 541 } else { 542 /* Get owner MBUF from indirect buffer */ 543 mi = rte_mbuf_from_indirect(cur_seg); 544 if (rte_mbuf_refcnt_read(mi) > 1) { 545 /*If refcnt > 1, invalid bpid is set to ensure 546 * owner buffer is not freed by HW. 547 */ 548 sg_temp->bpid = 0xff; 549 } else { 550 sg_temp->bpid = DPAA_MEMPOOL_TO_BPID(mi->pool); 551 rte_mbuf_refcnt_update(mi, 1); 552 } 553 prev_seg = cur_seg; 554 cur_seg = cur_seg->next; 555 prev_seg->next = NULL; 556 rte_pktmbuf_free(prev_seg); 557 } 558 if (cur_seg == NULL) { 559 sg_temp->final = 1; 560 cpu_to_hw_sg(sg_temp); 561 break; 562 } 563 cpu_to_hw_sg(sg_temp); 564 } 565 return 0; 566 } 567 568 /* Handle mbufs which are not segmented (non SG) */ 569 static inline void 570 tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf, 571 struct dpaa_bp_info *bp_info, 572 struct qm_fd *fd_arr) 573 { 574 struct rte_mbuf *mi = NULL; 575 576 if (RTE_MBUF_DIRECT(mbuf)) { 577 if (rte_mbuf_refcnt_read(mbuf) > 1) { 578 /* In case of direct mbuf and mbuf being cloned, 579 * BMAN should _not_ release buffer. 580 */ 581 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff); 582 /* Buffer should be releasd by EAL */ 583 rte_mbuf_refcnt_update(mbuf, -1); 584 } else { 585 /* In case of direct mbuf and no cloning, mbuf can be 586 * released by BMAN. 587 */ 588 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid); 589 } 590 } else { 591 /* This is data-containing core mbuf: 'mi' */ 592 mi = rte_mbuf_from_indirect(mbuf); 593 if (rte_mbuf_refcnt_read(mi) > 1) { 594 /* In case of indirect mbuf, and mbuf being cloned, 595 * BMAN should _not_ release it and let EAL release 596 * it through pktmbuf_free below. 597 */ 598 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff); 599 } else { 600 /* In case of indirect mbuf, and no cloning, core mbuf 601 * should be released by BMAN. 602 * Increate refcnt of core mbuf so that when 603 * pktmbuf_free is called and mbuf is released, EAL 604 * doesn't try to release core mbuf which would have 605 * been released by BMAN. 606 */ 607 rte_mbuf_refcnt_update(mi, 1); 608 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid); 609 } 610 rte_pktmbuf_free(mbuf); 611 } 612 613 if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) { 614 if (mbuf->data_off < (DEFAULT_TX_ICEOF + 615 sizeof(struct dpaa_eth_parse_results_t))) { 616 DPAA_DP_LOG(DEBUG, "Checksum offload Err: " 617 "Not enough Headroom " 618 "space for correct Checksum offload." 619 "So Calculating checksum in Software."); 620 dpaa_checksum(mbuf); 621 } else { 622 dpaa_checksum_offload(mbuf, fd_arr, mbuf->buf_addr); 623 } 624 } 625 } 626 627 /* Handle all mbufs on dpaa BMAN managed pool */ 628 static inline uint16_t 629 tx_on_dpaa_pool(struct rte_mbuf *mbuf, 630 struct dpaa_bp_info *bp_info, 631 struct qm_fd *fd_arr) 632 { 633 DPAA_DP_LOG(DEBUG, "BMAN offloaded buffer, mbuf: %p", mbuf); 634 635 if (mbuf->nb_segs == 1) { 636 /* Case for non-segmented buffers */ 637 tx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr); 638 } else if (mbuf->nb_segs > 1 && 639 mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) { 640 if (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info->bpid)) { 641 DPAA_PMD_DEBUG("Unable to create Scatter Gather FD"); 642 return 1; 643 } 644 } else { 645 DPAA_PMD_DEBUG("Number of Segments not supported"); 646 return 1; 647 } 648 649 return 0; 650 } 651 652 /* Handle all mbufs on an external pool (non-dpaa) */ 653 static inline uint16_t 654 tx_on_external_pool(struct qman_fq *txq, struct rte_mbuf *mbuf, 655 struct qm_fd *fd_arr) 656 { 657 struct dpaa_if *dpaa_intf = txq->dpaa_intf; 658 struct rte_mbuf *dmable_mbuf; 659 660 DPAA_DP_LOG(DEBUG, "Non-BMAN offloaded buffer." 661 "Allocating an offloaded buffer"); 662 dmable_mbuf = dpaa_get_dmable_mbuf(mbuf, dpaa_intf); 663 if (!dmable_mbuf) { 664 DPAA_DP_LOG(DEBUG, "no dpaa buffers."); 665 return 1; 666 } 667 668 DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, dpaa_intf->bp_info->bpid); 669 670 return 0; 671 } 672 673 uint16_t 674 dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) 675 { 676 struct rte_mbuf *mbuf, *mi = NULL; 677 struct rte_mempool *mp; 678 struct dpaa_bp_info *bp_info; 679 struct qm_fd fd_arr[MAX_TX_RING_SLOTS]; 680 uint32_t frames_to_send, loop, i = 0; 681 uint16_t state; 682 int ret; 683 684 ret = rte_dpaa_portal_init((void *)0); 685 if (ret) { 686 DPAA_PMD_ERR("Failure in affining portal"); 687 return 0; 688 } 689 690 DPAA_DP_LOG(DEBUG, "Transmitting %d buffers on queue: %p", nb_bufs, q); 691 692 while (nb_bufs) { 693 frames_to_send = (nb_bufs >> 3) ? MAX_TX_RING_SLOTS : nb_bufs; 694 for (loop = 0; loop < frames_to_send; loop++, i++) { 695 mbuf = bufs[i]; 696 if (RTE_MBUF_DIRECT(mbuf)) { 697 mp = mbuf->pool; 698 } else { 699 mi = rte_mbuf_from_indirect(mbuf); 700 mp = mi->pool; 701 } 702 703 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp); 704 if (likely(mp->ops_index == bp_info->dpaa_ops_index)) { 705 state = tx_on_dpaa_pool(mbuf, bp_info, 706 &fd_arr[loop]); 707 if (unlikely(state)) { 708 /* Set frames_to_send & nb_bufs so 709 * that packets are transmitted till 710 * previous frame. 711 */ 712 frames_to_send = loop; 713 nb_bufs = loop; 714 goto send_pkts; 715 } 716 } else { 717 state = tx_on_external_pool(q, mbuf, 718 &fd_arr[loop]); 719 if (unlikely(state)) { 720 /* Set frames_to_send & nb_bufs so 721 * that packets are transmitted till 722 * previous frame. 723 */ 724 frames_to_send = loop; 725 nb_bufs = loop; 726 goto send_pkts; 727 } 728 } 729 } 730 731 send_pkts: 732 loop = 0; 733 while (loop < frames_to_send) { 734 loop += qman_enqueue_multi(q, &fd_arr[loop], 735 frames_to_send - loop); 736 } 737 nb_bufs -= frames_to_send; 738 } 739 740 DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", i, q); 741 742 return i; 743 } 744 745 uint16_t dpaa_eth_tx_drop_all(void *q __rte_unused, 746 struct rte_mbuf **bufs __rte_unused, 747 uint16_t nb_bufs __rte_unused) 748 { 749 DPAA_DP_LOG(DEBUG, "Drop all packets"); 750 751 /* Drop all incoming packets. No need to free packets here 752 * because the rte_eth f/w frees up the packets through tx_buffer 753 * callback in case this functions returns count less than nb_bufs 754 */ 755 return 0; 756 } 757