drivers/net/dpaa/dpaa_rxtx.c

   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 <stdio.h>
  36 #include <inttypes.h>
  37 #include <unistd.h>
  38 #include <stdio.h>
  39 #include <limits.h>
  40 #include <sched.h>
  41 #include <pthread.h>
  42
  43 #include <rte_config.h>
  44 #include <rte_byteorder.h>
  45 #include <rte_common.h>
  46 #include <rte_interrupts.h>
  47 #include <rte_log.h>
  48 #include <rte_debug.h>
  49 #include <rte_pci.h>
  50 #include <rte_atomic.h>
  51 #include <rte_branch_prediction.h>
  52 #include <rte_memory.h>
  53 #include <rte_memzone.h>
  54 #include <rte_tailq.h>
  55 #include <rte_eal.h>
  56 #include <rte_alarm.h>
  57 #include <rte_ether.h>
  58 #include <rte_ethdev.h>
  59 #include <rte_atomic.h>
  60 #include <rte_malloc.h>
  61 #include <rte_ring.h>
  62 #include <rte_ip.h>
  63 #include <rte_tcp.h>
  64 #include <rte_udp.h>
  65
  66 #include "dpaa_ethdev.h"
  67 #include "dpaa_rxtx.h"
  68 #include <rte_dpaa_bus.h>
  69 #include <dpaa_mempool.h>
  70
  71 #include <fsl_usd.h>
  72 #include <fsl_qman.h>
  73 #include <fsl_bman.h>
  74 #include <of.h>
  75 #include <netcfg.h>
  76
  77 #define DPAA_MBUF_TO_CONTIG_FD(_mbuf, _fd, _bpid) \
  78         do { \
  79                 (_fd)->cmd = 0; \
  80                 (_fd)->opaque_addr = 0; \
  81                 (_fd)->opaque = QM_FD_CONTIG << DPAA_FD_FORMAT_SHIFT; \
  82                 (_fd)->opaque |= ((_mbuf)->data_off) << DPAA_FD_OFFSET_SHIFT; \
  83                 (_fd)->opaque |= (_mbuf)->pkt_len; \
  84                 (_fd)->addr = (_mbuf)->buf_physaddr; \
  85                 (_fd)->bpid = _bpid; \
  86         } while (0)
  87
  88 static inline void dpaa_slow_parsing(struct rte_mbuf *m __rte_unused,
  89                                      uint64_t prs __rte_unused)
  90 {
  91         DPAA_DP_LOG(DEBUG, "Slow parsing");
  92         /*TBD:XXX: to be implemented*/
  93 }
  94
  95 static inline void dpaa_eth_packet_info(struct rte_mbuf *m,
  96                                         uint64_t fd_virt_addr)
  97 {
  98         struct annotations_t *annot = GET_ANNOTATIONS(fd_virt_addr);
  99         uint64_t prs = *((uint64_t *)(&annot->parse)) & DPAA_PARSE_MASK;
 100
 101         DPAA_DP_LOG(DEBUG, " Parsing mbuf: %p with annotations: %p", m, annot);
 102
 103         switch (prs) {
 104         case DPAA_PKT_TYPE_NONE:
 105                 m->packet_type = 0;
 106                 break;
 107         case DPAA_PKT_TYPE_ETHER:
 108                 m->packet_type = RTE_PTYPE_L2_ETHER;
 109                 break;
 110         case DPAA_PKT_TYPE_IPV4:
 111                 m->packet_type = RTE_PTYPE_L2_ETHER |
 112                         RTE_PTYPE_L3_IPV4;
 113                 break;
 114         case DPAA_PKT_TYPE_IPV6:
 115                 m->packet_type = RTE_PTYPE_L2_ETHER |
 116                         RTE_PTYPE_L3_IPV6;
 117                 break;
 118         case DPAA_PKT_TYPE_IPV4_FRAG:
 119         case DPAA_PKT_TYPE_IPV4_FRAG_UDP:
 120         case DPAA_PKT_TYPE_IPV4_FRAG_TCP:
 121         case DPAA_PKT_TYPE_IPV4_FRAG_SCTP:
 122                 m->packet_type = RTE_PTYPE_L2_ETHER |
 123                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_FRAG;
 124                 break;
 125         case DPAA_PKT_TYPE_IPV6_FRAG:
 126         case DPAA_PKT_TYPE_IPV6_FRAG_UDP:
 127         case DPAA_PKT_TYPE_IPV6_FRAG_TCP:
 128         case DPAA_PKT_TYPE_IPV6_FRAG_SCTP:
 129                 m->packet_type = RTE_PTYPE_L2_ETHER |
 130                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_FRAG;
 131                 break;
 132         case DPAA_PKT_TYPE_IPV4_EXT:
 133                 m->packet_type = RTE_PTYPE_L2_ETHER |
 134                         RTE_PTYPE_L3_IPV4_EXT;
 135                 break;
 136         case DPAA_PKT_TYPE_IPV6_EXT:
 137                 m->packet_type = RTE_PTYPE_L2_ETHER |
 138                         RTE_PTYPE_L3_IPV6_EXT;
 139                 break;
 140         case DPAA_PKT_TYPE_IPV4_TCP:
 141                 m->packet_type = RTE_PTYPE_L2_ETHER |
 142                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_TCP;
 143                 break;
 144         case DPAA_PKT_TYPE_IPV6_TCP:
 145                 m->packet_type = RTE_PTYPE_L2_ETHER |
 146                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP;
 147                 break;
 148         case DPAA_PKT_TYPE_IPV4_UDP:
 149                 m->packet_type = RTE_PTYPE_L2_ETHER |
 150                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_UDP;
 151                 break;
 152         case DPAA_PKT_TYPE_IPV6_UDP:
 153                 m->packet_type = RTE_PTYPE_L2_ETHER |
 154                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP;
 155                 break;
 156         case DPAA_PKT_TYPE_IPV4_EXT_UDP:
 157                 m->packet_type = RTE_PTYPE_L2_ETHER |
 158                         RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_UDP;
 159                 break;
 160         case DPAA_PKT_TYPE_IPV6_EXT_UDP:
 161                 m->packet_type = RTE_PTYPE_L2_ETHER |
 162                         RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_UDP;
 163                 break;
 164         case DPAA_PKT_TYPE_IPV4_EXT_TCP:
 165                 m->packet_type = RTE_PTYPE_L2_ETHER |
 166                         RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_TCP;
 167                 break;
 168         case DPAA_PKT_TYPE_IPV6_EXT_TCP:
 169                 m->packet_type = RTE_PTYPE_L2_ETHER |
 170                         RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_TCP;
 171                 break;
 172         case DPAA_PKT_TYPE_IPV4_SCTP:
 173                 m->packet_type = RTE_PTYPE_L2_ETHER |
 174                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_SCTP;
 175                 break;
 176         case DPAA_PKT_TYPE_IPV6_SCTP:
 177                 m->packet_type = RTE_PTYPE_L2_ETHER |
 178                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_SCTP;
 179                 break;
 180         /* More switch cases can be added */
 181         default:
 182                 dpaa_slow_parsing(m, prs);
 183         }
 184
 185         m->tx_offload = annot->parse.ip_off[0];
 186         m->tx_offload |= (annot->parse.l4_off - annot->parse.ip_off[0])
 187                                         << DPAA_PKT_L3_LEN_SHIFT;
 188
 189         /* Set the hash values */
 190         m->hash.rss = (uint32_t)(rte_be_to_cpu_64(annot->hash));
 191         m->ol_flags = PKT_RX_RSS_HASH;
 192         /* All packets with Bad checksum are dropped by interface (and
 193          * corresponding notification issued to RX error queues).
 194          */
 195         m->ol_flags |= PKT_RX_IP_CKSUM_GOOD;
 196
 197         /* Check if Vlan is present */
 198         if (prs & DPAA_PARSE_VLAN_MASK)
 199                 m->ol_flags |= PKT_RX_VLAN_PKT;
 200         /* Packet received without stripping the vlan */
 201 }
 202
 203 static inline void dpaa_checksum(struct rte_mbuf *mbuf)
 204 {
 205         struct ether_hdr *eth_hdr = rte_pktmbuf_mtod(mbuf, struct ether_hdr *);
 206         char *l3_hdr = (char *)eth_hdr + mbuf->l2_len;
 207         struct ipv4_hdr *ipv4_hdr = (struct ipv4_hdr *)l3_hdr;
 208         struct ipv6_hdr *ipv6_hdr = (struct ipv6_hdr *)l3_hdr;
 209
 210         DPAA_DP_LOG(DEBUG, "Calculating checksum for mbuf: %p", mbuf);
 211
 212         if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) ||
 213             ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 214             RTE_PTYPE_L3_IPV4_EXT)) {
 215                 ipv4_hdr = (struct ipv4_hdr *)l3_hdr;
 216                 ipv4_hdr->hdr_checksum = 0;
 217                 ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr);
 218         } else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 219                    RTE_PTYPE_L3_IPV6) ||
 220                    ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 221                    RTE_PTYPE_L3_IPV6_EXT))
 222                 ipv6_hdr = (struct ipv6_hdr *)l3_hdr;
 223
 224         if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) {
 225                 struct tcp_hdr *tcp_hdr = (struct tcp_hdr *)(l3_hdr +
 226                                           mbuf->l3_len);
 227                 tcp_hdr->cksum = 0;
 228                 if (eth_hdr->ether_type == htons(ETHER_TYPE_IPv4))
 229                         tcp_hdr->cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
 230                                                                tcp_hdr);
 231                 else /* assume ethertype == ETHER_TYPE_IPv6 */
 232                         tcp_hdr->cksum = rte_ipv6_udptcp_cksum(ipv6_hdr,
 233                                                                tcp_hdr);
 234         } else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) ==
 235                    RTE_PTYPE_L4_UDP) {
 236                 struct udp_hdr *udp_hdr = (struct udp_hdr *)(l3_hdr +
 237                                                              mbuf->l3_len);
 238                 udp_hdr->dgram_cksum = 0;
 239                 if (eth_hdr->ether_type == htons(ETHER_TYPE_IPv4))
 240                         udp_hdr->dgram_cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
 241                                                                      udp_hdr);
 242                 else /* assume ethertype == ETHER_TYPE_IPv6 */
 243                         udp_hdr->dgram_cksum = rte_ipv6_udptcp_cksum(ipv6_hdr,
 244                                                                      udp_hdr);
 245         }
 246 }
 247
 248 static inline void dpaa_checksum_offload(struct rte_mbuf *mbuf,
 249                                          struct qm_fd *fd, char *prs_buf)
 250 {
 251         struct dpaa_eth_parse_results_t *prs;
 252
 253         DPAA_DP_LOG(DEBUG, " Offloading checksum for mbuf: %p", mbuf);
 254
 255         prs = GET_TX_PRS(prs_buf);
 256         prs->l3r = 0;
 257         prs->l4r = 0;
 258         if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) ||
 259            ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 260            RTE_PTYPE_L3_IPV4_EXT))
 261                 prs->l3r = DPAA_L3_PARSE_RESULT_IPV4;
 262         else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 263                    RTE_PTYPE_L3_IPV6) ||
 264                  ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 265                 RTE_PTYPE_L3_IPV6_EXT))
 266                 prs->l3r = DPAA_L3_PARSE_RESULT_IPV6;
 267
 268         if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP)
 269                 prs->l4r = DPAA_L4_PARSE_RESULT_TCP;
 270         else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_UDP)
 271                 prs->l4r = DPAA_L4_PARSE_RESULT_UDP;
 272
 273         prs->ip_off[0] = mbuf->l2_len;
 274         prs->l4_off = mbuf->l3_len + mbuf->l2_len;
 275         /* Enable L3 (and L4, if TCP or UDP) HW checksum*/
 276         fd->cmd = DPAA_FD_CMD_RPD | DPAA_FD_CMD_DTC;
 277 }
 278
 279 static inline struct rte_mbuf *dpaa_eth_fd_to_mbuf(struct qm_fd *fd,
 280                                                         uint32_t ifid)
 281 {
 282         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
 283         struct rte_mbuf *mbuf;
 284         void *ptr;
 285         uint16_t offset =
 286                 (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT;
 287         uint32_t length = fd->opaque & DPAA_FD_LENGTH_MASK;
 288
 289         DPAA_DP_LOG(DEBUG, " FD--->MBUF");
 290
 291         /* Ignoring case when format != qm_fd_contig */
 292         ptr = rte_dpaa_mem_ptov(fd->addr);
 293         /* Ignoring case when ptr would be NULL. That is only possible incase
 294          * of a corrupted packet
 295          */
 296
 297         mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 298         /* Prefetch the Parse results and packet data to L1 */
 299         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 300         rte_prefetch0((void *)((uint8_t *)ptr + offset));
 301
 302         mbuf->data_off = offset;
 303         mbuf->data_len = length;
 304         mbuf->pkt_len = length;
 305
 306         mbuf->port = ifid;
 307         mbuf->nb_segs = 1;
 308         mbuf->ol_flags = 0;
 309         mbuf->next = NULL;
 310         rte_mbuf_refcnt_set(mbuf, 1);
 311         dpaa_eth_packet_info(mbuf, (uint64_t)mbuf->buf_addr);
 312
 313         return mbuf;
 314 }
 315
 316 uint16_t dpaa_eth_queue_rx(void *q,
 317                            struct rte_mbuf **bufs,
 318                            uint16_t nb_bufs)
 319 {
 320         struct qman_fq *fq = q;
 321         struct qm_dqrr_entry *dq;
 322         uint32_t num_rx = 0, ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 323         int ret;
 324
 325         ret = rte_dpaa_portal_init((void *)0);
 326         if (ret) {
 327                 DPAA_PMD_ERR("Failure in affining portal");
 328                 return 0;
 329         }
 330
 331         ret = qman_set_vdq(fq, (nb_bufs > DPAA_MAX_DEQUEUE_NUM_FRAMES) ?
 332                                 DPAA_MAX_DEQUEUE_NUM_FRAMES : nb_bufs);
 333         if (ret)
 334                 return 0;
 335
 336         do {
 337                 dq = qman_dequeue(fq);
 338                 if (!dq)
 339                         continue;
 340                 bufs[num_rx++] = dpaa_eth_fd_to_mbuf(&dq->fd, ifid);
 341                 qman_dqrr_consume(fq, dq);
 342         } while (fq->flags & QMAN_FQ_STATE_VDQCR);
 343
 344         return num_rx;
 345 }
 346
 347 static void *dpaa_get_pktbuf(struct dpaa_bp_info *bp_info)
 348 {
 349         int ret;
 350         uint64_t buf = 0;
 351         struct bm_buffer bufs;
 352
 353         ret = bman_acquire(bp_info->bp, &bufs, 1, 0);
 354         if (ret <= 0) {
 355                 DPAA_PMD_WARN("Failed to allocate buffers %d", ret);
 356                 return (void *)buf;
 357         }
 358
 359         DPAA_DP_LOG(DEBUG, "got buffer 0x%lx from pool %d",
 360                     (uint64_t)bufs.addr, bufs.bpid);
 361
 362         buf = (uint64_t)rte_dpaa_mem_ptov(bufs.addr) - bp_info->meta_data_size;
 363         if (!buf)
 364                 goto out;
 365
 366 out:
 367         return (void *)buf;
 368 }
 369
 370 static struct rte_mbuf *dpaa_get_dmable_mbuf(struct rte_mbuf *mbuf,
 371                                              struct dpaa_if *dpaa_intf)
 372 {
 373         struct rte_mbuf *dpaa_mbuf;
 374
 375         /* allocate pktbuffer on bpid for dpaa port */
 376         dpaa_mbuf = dpaa_get_pktbuf(dpaa_intf->bp_info);
 377         if (!dpaa_mbuf)
 378                 return NULL;
 379
 380         memcpy((uint8_t *)(dpaa_mbuf->buf_addr) + mbuf->data_off, (void *)
 381                 ((uint8_t *)(mbuf->buf_addr) + mbuf->data_off), mbuf->pkt_len);
 382
 383         /* Copy only the required fields */
 384         dpaa_mbuf->data_off = mbuf->data_off;
 385         dpaa_mbuf->pkt_len = mbuf->pkt_len;
 386         dpaa_mbuf->ol_flags = mbuf->ol_flags;
 387         dpaa_mbuf->packet_type = mbuf->packet_type;
 388         dpaa_mbuf->tx_offload = mbuf->tx_offload;
 389         rte_pktmbuf_free(mbuf);
 390         return dpaa_mbuf;
 391 }
 392
 393 /* Handle mbufs which are not segmented (non SG) */
 394 static inline void
 395 tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf,
 396                             struct dpaa_bp_info *bp_info,
 397                             struct qm_fd *fd_arr)
 398 {
 399         struct rte_mbuf *mi = NULL;
 400
 401         if (RTE_MBUF_DIRECT(mbuf)) {
 402                 if (rte_mbuf_refcnt_read(mbuf) > 1) {
 403                         /* In case of direct mbuf and mbuf being cloned,
 404                          * BMAN should _not_ release buffer.
 405                          */
 406                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
 407                         /* Buffer should be releasd by EAL */
 408                         rte_mbuf_refcnt_update(mbuf, -1);
 409                 } else {
 410                         /* In case of direct mbuf and no cloning, mbuf can be
 411                          * released by BMAN.
 412                          */
 413                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
 414                 }
 415         } else {
 416                 /* This is data-containing core mbuf: 'mi' */
 417                 mi = rte_mbuf_from_indirect(mbuf);
 418                 if (rte_mbuf_refcnt_read(mi) > 1) {
 419                         /* In case of indirect mbuf, and mbuf being cloned,
 420                          * BMAN should _not_ release it and let EAL release
 421                          * it through pktmbuf_free below.
 422                          */
 423                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
 424                 } else {
 425                         /* In case of indirect mbuf, and no cloning, core mbuf
 426                          * should be released by BMAN.
 427                          * Increate refcnt of core mbuf so that when
 428                          * pktmbuf_free is called and mbuf is released, EAL
 429                          * doesn't try to release core mbuf which would have
 430                          * been released by BMAN.
 431                          */
 432                         rte_mbuf_refcnt_update(mi, 1);
 433                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
 434                 }
 435                 rte_pktmbuf_free(mbuf);
 436         }
 437
 438         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) {
 439                 if (mbuf->data_off < (DEFAULT_TX_ICEOF +
 440                     sizeof(struct dpaa_eth_parse_results_t))) {
 441                         DPAA_DP_LOG(DEBUG, "Checksum offload Err: "
 442                                 "Not enough Headroom "
 443                                 "space for correct Checksum offload."
 444                                 "So Calculating checksum in Software.");
 445                         dpaa_checksum(mbuf);
 446                 } else {
 447                         dpaa_checksum_offload(mbuf, fd_arr, mbuf->buf_addr);
 448                 }
 449         }
 450 }
 451
 452 /* Handle all mbufs on dpaa BMAN managed pool */
 453 static inline uint16_t
 454 tx_on_dpaa_pool(struct rte_mbuf *mbuf,
 455                 struct dpaa_bp_info *bp_info,
 456                 struct qm_fd *fd_arr)
 457 {
 458         DPAA_DP_LOG(DEBUG, "BMAN offloaded buffer, mbuf: %p", mbuf);
 459
 460         if (mbuf->nb_segs == 1) {
 461                 /* Case for non-segmented buffers */
 462                 tx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr);
 463         } else {
 464                 DPAA_PMD_DEBUG("Number of Segments not supported");
 465                 return 1;
 466         }
 467
 468         return 0;
 469 }
 470
 471 /* Handle all mbufs on an external pool (non-dpaa) */
 472 static inline uint16_t
 473 tx_on_external_pool(struct qman_fq *txq, struct rte_mbuf *mbuf,
 474                     struct qm_fd *fd_arr)
 475 {
 476         struct dpaa_if *dpaa_intf = txq->dpaa_intf;
 477         struct rte_mbuf *dmable_mbuf;
 478
 479         DPAA_DP_LOG(DEBUG, "Non-BMAN offloaded buffer."
 480                     "Allocating an offloaded buffer");
 481         dmable_mbuf = dpaa_get_dmable_mbuf(mbuf, dpaa_intf);
 482         if (!dmable_mbuf) {
 483                 DPAA_DP_LOG(DEBUG, "no dpaa buffers.");
 484                 return 1;
 485         }
 486
 487         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, dpaa_intf->bp_info->bpid);
 488
 489         return 0;
 490 }
 491
 492 uint16_t
 493 dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
 494 {
 495         struct rte_mbuf *mbuf, *mi = NULL;
 496         struct rte_mempool *mp;
 497         struct dpaa_bp_info *bp_info;
 498         struct qm_fd fd_arr[MAX_TX_RING_SLOTS];
 499         uint32_t frames_to_send, loop, i = 0;
 500         uint16_t state;
 501         int ret;
 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         DPAA_DP_LOG(DEBUG, "Transmitting %d buffers on queue: %p", nb_bufs, q);
 510
 511         while (nb_bufs) {
 512                 frames_to_send = (nb_bufs >> 3) ? MAX_TX_RING_SLOTS : nb_bufs;
 513                 for (loop = 0; loop < frames_to_send; loop++, i++) {
 514                         mbuf = bufs[i];
 515                         if (RTE_MBUF_DIRECT(mbuf)) {
 516                                 mp = mbuf->pool;
 517                         } else {
 518                                 mi = rte_mbuf_from_indirect(mbuf);
 519                                 mp = mi->pool;
 520                         }
 521
 522                         bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
 523                         if (likely(mp->ops_index == bp_info->dpaa_ops_index)) {
 524                                 state = tx_on_dpaa_pool(mbuf, bp_info,
 525                                                         &fd_arr[loop]);
 526                                 if (unlikely(state)) {
 527                                         /* Set frames_to_send & nb_bufs so
 528                                          * that packets are transmitted till
 529                                          * previous frame.
 530                                          */
 531                                         frames_to_send = loop;
 532                                         nb_bufs = loop;
 533                                         goto send_pkts;
 534                                 }
 535                         } else {
 536                                 state = tx_on_external_pool(q, mbuf,
 537                                                             &fd_arr[loop]);
 538                                 if (unlikely(state)) {
 539                                         /* Set frames_to_send & nb_bufs so
 540                                          * that packets are transmitted till
 541                                          * previous frame.
 542                                          */
 543                                         frames_to_send = loop;
 544                                         nb_bufs = loop;
 545                                         goto send_pkts;
 546                                 }
 547                         }
 548                 }
 549
 550 send_pkts:
 551                 loop = 0;
 552                 while (loop < frames_to_send) {
 553                         loop += qman_enqueue_multi(q, &fd_arr[loop],
 554                                         frames_to_send - loop);
 555                 }
 556                 nb_bufs -= frames_to_send;
 557         }
 558
 559         DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", i, q);
 560
 561         return i;
 562 }
 563
 564 uint16_t dpaa_eth_tx_drop_all(void *q  __rte_unused,
 565                               struct rte_mbuf **bufs __rte_unused,
 566                 uint16_t nb_bufs __rte_unused)
 567 {
 568         DPAA_DP_LOG(DEBUG, "Drop all packets");
 569
 570         /* Drop all incoming packets. No need to free packets here
 571          * because the rte_eth f/w frees up the packets through tx_buffer
 572          * callback in case this functions returns count less than nb_bufs
 573          */
 574         return 0;
 575 }