drivers/net/dpaa/dpaa_rxtx.c

   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 = DPAA_MEMPOOL_PTOV(bp_info, 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 = DPAA_MEMPOOL_PTOV(bp_info, 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 = DPAA_MEMPOOL_PTOV(bp_info,
 338                                              qm_sg_entry_get64(sg_temp));
 339                 cur_seg = (struct rte_mbuf *)((char *)sg_vaddr -
 340                                                       bp_info->meta_data_size);
 341                 cur_seg->data_off = sg_temp->offset;
 342                 cur_seg->data_len = sg_temp->length;
 343                 first_seg->pkt_len += sg_temp->length;
 344                 first_seg->nb_segs += 1;
 345                 rte_mbuf_refcnt_set(cur_seg, 1);
 346                 prev_seg->next = cur_seg;
 347                 if (sg_temp->final) {
 348                         cur_seg->next = NULL;
 349                         break;
 350                 }
 351                 prev_seg = cur_seg;
 352         }
 353
 354         dpaa_eth_packet_info(first_seg, (uint64_t)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         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         ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 377
 378         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 379
 380         offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT;
 381         length = fd->opaque & DPAA_FD_LENGTH_MASK;
 382
 383         /* Ignoring case when format != qm_fd_contig */
 384         dpaa_display_frame(fd);
 385
 386         mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 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 enum qman_cb_dqrr_result dpaa_rx_cb(void *event __always_unused,
 403                                     struct qman_portal *qm __always_unused,
 404                                     struct qman_fq *fq,
 405                                     const struct qm_dqrr_entry *dqrr,
 406                                     void **bufs)
 407 {
 408         const struct qm_fd *fd = &dqrr->fd;
 409
 410         *bufs = dpaa_eth_fd_to_mbuf(fd,
 411                         ((struct dpaa_if *)fq->dpaa_intf)->ifid);
 412         return qman_cb_dqrr_consume;
 413 }
 414
 415 static uint16_t
 416 dpaa_eth_queue_portal_rx(struct qman_fq *fq,
 417                          struct rte_mbuf **bufs,
 418                          uint16_t nb_bufs)
 419 {
 420         int ret;
 421
 422         if (unlikely(fq->qp == NULL)) {
 423                 ret = rte_dpaa_portal_fq_init((void *)0, fq);
 424                 if (ret) {
 425                         DPAA_PMD_ERR("Failure in affining portal %d", ret);
 426                         return 0;
 427                 }
 428         }
 429
 430         return qman_portal_poll_rx(nb_bufs, (void **)bufs, fq->qp);
 431 }
 432
 433 enum qman_cb_dqrr_result
 434 dpaa_rx_cb_parallel(void *event,
 435                     struct qman_portal *qm __always_unused,
 436                     struct qman_fq *fq,
 437                     const struct qm_dqrr_entry *dqrr,
 438                     void **bufs)
 439 {
 440         u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 441         struct rte_mbuf *mbuf;
 442         struct rte_event *ev = (struct rte_event *)event;
 443
 444         mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
 445         ev->event_ptr = (void *)mbuf;
 446         ev->flow_id = fq->ev.flow_id;
 447         ev->sub_event_type = fq->ev.sub_event_type;
 448         ev->event_type = RTE_EVENT_TYPE_ETHDEV;
 449         ev->op = RTE_EVENT_OP_NEW;
 450         ev->sched_type = fq->ev.sched_type;
 451         ev->queue_id = fq->ev.queue_id;
 452         ev->priority = fq->ev.priority;
 453         ev->impl_opaque = (uint8_t)DPAA_INVALID_MBUF_SEQN;
 454         mbuf->seqn = DPAA_INVALID_MBUF_SEQN;
 455         *bufs = mbuf;
 456
 457         return qman_cb_dqrr_consume;
 458 }
 459
 460 enum qman_cb_dqrr_result
 461 dpaa_rx_cb_atomic(void *event,
 462                   struct qman_portal *qm __always_unused,
 463                   struct qman_fq *fq,
 464                   const struct qm_dqrr_entry *dqrr,
 465                   void **bufs)
 466 {
 467         u8 index;
 468         u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 469         struct rte_mbuf *mbuf;
 470         struct rte_event *ev = (struct rte_event *)event;
 471
 472         mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
 473         ev->event_ptr = (void *)mbuf;
 474         ev->flow_id = fq->ev.flow_id;
 475         ev->sub_event_type = fq->ev.sub_event_type;
 476         ev->event_type = RTE_EVENT_TYPE_ETHDEV;
 477         ev->op = RTE_EVENT_OP_NEW;
 478         ev->sched_type = fq->ev.sched_type;
 479         ev->queue_id = fq->ev.queue_id;
 480         ev->priority = fq->ev.priority;
 481
 482         /* Save active dqrr entries */
 483         index = DQRR_PTR2IDX(dqrr);
 484         DPAA_PER_LCORE_DQRR_SIZE++;
 485         DPAA_PER_LCORE_DQRR_HELD |= 1 << index;
 486         DPAA_PER_LCORE_DQRR_MBUF(index) = mbuf;
 487         ev->impl_opaque = index + 1;
 488         mbuf->seqn = (uint32_t)index + 1;
 489         *bufs = mbuf;
 490
 491         return qman_cb_dqrr_defer;
 492 }
 493
 494 uint16_t dpaa_eth_queue_rx(void *q,
 495                            struct rte_mbuf **bufs,
 496                            uint16_t nb_bufs)
 497 {
 498         struct qman_fq *fq = q;
 499         struct qm_dqrr_entry *dq;
 500         uint32_t num_rx = 0, ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 501         int ret;
 502
 503         if (likely(fq->is_static))
 504                 return dpaa_eth_queue_portal_rx(fq, bufs, nb_bufs);
 505
 506         ret = rte_dpaa_portal_init((void *)0);
 507         if (ret) {
 508                 DPAA_PMD_ERR("Failure in affining portal");
 509                 return 0;
 510         }
 511
 512         ret = qman_set_vdq(fq, (nb_bufs > DPAA_MAX_DEQUEUE_NUM_FRAMES) ?
 513                                 DPAA_MAX_DEQUEUE_NUM_FRAMES : nb_bufs);
 514         if (ret)
 515                 return 0;
 516
 517         do {
 518                 dq = qman_dequeue(fq);
 519                 if (!dq)
 520                         continue;
 521                 bufs[num_rx++] = dpaa_eth_fd_to_mbuf(&dq->fd, ifid);
 522                 qman_dqrr_consume(fq, dq);
 523         } while (fq->flags & QMAN_FQ_STATE_VDQCR);
 524
 525         return num_rx;
 526 }
 527
 528 static void *dpaa_get_pktbuf(struct dpaa_bp_info *bp_info)
 529 {
 530         int ret;
 531         uint64_t buf = 0;
 532         struct bm_buffer bufs;
 533
 534         ret = bman_acquire(bp_info->bp, &bufs, 1, 0);
 535         if (ret <= 0) {
 536                 DPAA_PMD_WARN("Failed to allocate buffers %d", ret);
 537                 return (void *)buf;
 538         }
 539
 540         DPAA_DP_LOG(DEBUG, "got buffer 0x%lx from pool %d",
 541                     (uint64_t)bufs.addr, bufs.bpid);
 542
 543         buf = (uint64_t)DPAA_MEMPOOL_PTOV(bp_info, bufs.addr)
 544                                 - bp_info->meta_data_size;
 545         if (!buf)
 546                 goto out;
 547
 548 out:
 549         return (void *)buf;
 550 }
 551
 552 static struct rte_mbuf *dpaa_get_dmable_mbuf(struct rte_mbuf *mbuf,
 553                                              struct dpaa_if *dpaa_intf)
 554 {
 555         struct rte_mbuf *dpaa_mbuf;
 556
 557         /* allocate pktbuffer on bpid for dpaa port */
 558         dpaa_mbuf = dpaa_get_pktbuf(dpaa_intf->bp_info);
 559         if (!dpaa_mbuf)
 560                 return NULL;
 561
 562         memcpy((uint8_t *)(dpaa_mbuf->buf_addr) + RTE_PKTMBUF_HEADROOM, (void *)
 563                 ((uint8_t *)(mbuf->buf_addr) + mbuf->data_off), mbuf->pkt_len);
 564
 565         /* Copy only the required fields */
 566         dpaa_mbuf->data_off = RTE_PKTMBUF_HEADROOM;
 567         dpaa_mbuf->pkt_len = mbuf->pkt_len;
 568         dpaa_mbuf->ol_flags = mbuf->ol_flags;
 569         dpaa_mbuf->packet_type = mbuf->packet_type;
 570         dpaa_mbuf->tx_offload = mbuf->tx_offload;
 571         rte_pktmbuf_free(mbuf);
 572         return dpaa_mbuf;
 573 }
 574
 575 int
 576 dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
 577                 struct qm_fd *fd,
 578                 uint32_t bpid)
 579 {
 580         struct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL;
 581         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(bpid);
 582         struct rte_mbuf *temp, *mi;
 583         struct qm_sg_entry *sg_temp, *sgt;
 584         int i = 0;
 585
 586         DPAA_DP_LOG(DEBUG, "Creating SG FD to transmit");
 587
 588         temp = rte_pktmbuf_alloc(bp_info->mp);
 589         if (!temp) {
 590                 DPAA_PMD_ERR("Failure in allocation of mbuf");
 591                 return -1;
 592         }
 593         if (temp->buf_len < ((mbuf->nb_segs * sizeof(struct qm_sg_entry))
 594                                 + temp->data_off)) {
 595                 DPAA_PMD_ERR("Insufficient space in mbuf for SG entries");
 596                 return -1;
 597         }
 598
 599         fd->cmd = 0;
 600         fd->opaque_addr = 0;
 601
 602         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) {
 603                 if (!mbuf->packet_type) {
 604                         struct rte_net_hdr_lens hdr_lens;
 605
 606                         mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens,
 607                                         RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK
 608                                         | RTE_PTYPE_L4_MASK);
 609                         mbuf->l2_len = hdr_lens.l2_len;
 610                         mbuf->l3_len = hdr_lens.l3_len;
 611                 }
 612                 if (temp->data_off < DEFAULT_TX_ICEOF
 613                         + sizeof(struct dpaa_eth_parse_results_t))
 614                         temp->data_off = DEFAULT_TX_ICEOF
 615                                 + sizeof(struct dpaa_eth_parse_results_t);
 616                 dcbz_64(temp->buf_addr);
 617                 dpaa_checksum_offload(mbuf, fd, temp->buf_addr);
 618         }
 619
 620         sgt = temp->buf_addr + temp->data_off;
 621         fd->format = QM_FD_SG;
 622         fd->addr = temp->buf_iova;
 623         fd->offset = temp->data_off;
 624         fd->bpid = bpid;
 625         fd->length20 = mbuf->pkt_len;
 626
 627         while (i < DPAA_SGT_MAX_ENTRIES) {
 628                 sg_temp = &sgt[i++];
 629                 sg_temp->opaque = 0;
 630                 sg_temp->val = 0;
 631                 sg_temp->addr = cur_seg->buf_iova;
 632                 sg_temp->offset = cur_seg->data_off;
 633                 sg_temp->length = cur_seg->data_len;
 634                 if (RTE_MBUF_DIRECT(cur_seg)) {
 635                         if (rte_mbuf_refcnt_read(cur_seg) > 1) {
 636                                 /*If refcnt > 1, invalid bpid is set to ensure
 637                                  * buffer is not freed by HW.
 638                                  */
 639                                 sg_temp->bpid = 0xff;
 640                                 rte_mbuf_refcnt_update(cur_seg, -1);
 641                         } else {
 642                                 sg_temp->bpid =
 643                                         DPAA_MEMPOOL_TO_BPID(cur_seg->pool);
 644                         }
 645                         cur_seg = cur_seg->next;
 646                 } else {
 647                         /* Get owner MBUF from indirect buffer */
 648                         mi = rte_mbuf_from_indirect(cur_seg);
 649                         if (rte_mbuf_refcnt_read(mi) > 1) {
 650                                 /*If refcnt > 1, invalid bpid is set to ensure
 651                                  * owner buffer is not freed by HW.
 652                                  */
 653                                 sg_temp->bpid = 0xff;
 654                         } else {
 655                                 sg_temp->bpid = DPAA_MEMPOOL_TO_BPID(mi->pool);
 656                                 rte_mbuf_refcnt_update(mi, 1);
 657                         }
 658                         prev_seg = cur_seg;
 659                         cur_seg = cur_seg->next;
 660                         prev_seg->next = NULL;
 661                         rte_pktmbuf_free(prev_seg);
 662                 }
 663                 if (cur_seg == NULL) {
 664                         sg_temp->final = 1;
 665                         cpu_to_hw_sg(sg_temp);
 666                         break;
 667                 }
 668                 cpu_to_hw_sg(sg_temp);
 669         }
 670         return 0;
 671 }
 672
 673 /* Handle mbufs which are not segmented (non SG) */
 674 static inline void
 675 tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf,
 676                             struct dpaa_bp_info *bp_info,
 677                             struct qm_fd *fd_arr)
 678 {
 679         struct rte_mbuf *mi = NULL;
 680
 681         if (RTE_MBUF_DIRECT(mbuf)) {
 682                 if (rte_mbuf_refcnt_read(mbuf) > 1) {
 683                         /* In case of direct mbuf and mbuf being cloned,
 684                          * BMAN should _not_ release buffer.
 685                          */
 686                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
 687                         /* Buffer should be releasd by EAL */
 688                         rte_mbuf_refcnt_update(mbuf, -1);
 689                 } else {
 690                         /* In case of direct mbuf and no cloning, mbuf can be
 691                          * released by BMAN.
 692                          */
 693                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
 694                 }
 695         } else {
 696                 /* This is data-containing core mbuf: 'mi' */
 697                 mi = rte_mbuf_from_indirect(mbuf);
 698                 if (rte_mbuf_refcnt_read(mi) > 1) {
 699                         /* In case of indirect mbuf, and mbuf being cloned,
 700                          * BMAN should _not_ release it and let EAL release
 701                          * it through pktmbuf_free below.
 702                          */
 703                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
 704                 } else {
 705                         /* In case of indirect mbuf, and no cloning, core mbuf
 706                          * should be released by BMAN.
 707                          * Increate refcnt of core mbuf so that when
 708                          * pktmbuf_free is called and mbuf is released, EAL
 709                          * doesn't try to release core mbuf which would have
 710                          * been released by BMAN.
 711                          */
 712                         rte_mbuf_refcnt_update(mi, 1);
 713                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
 714                 }
 715                 rte_pktmbuf_free(mbuf);
 716         }
 717
 718         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK)
 719                 dpaa_unsegmented_checksum(mbuf, fd_arr);
 720 }
 721
 722 /* Handle all mbufs on dpaa BMAN managed pool */
 723 static inline uint16_t
 724 tx_on_dpaa_pool(struct rte_mbuf *mbuf,
 725                 struct dpaa_bp_info *bp_info,
 726                 struct qm_fd *fd_arr)
 727 {
 728         DPAA_DP_LOG(DEBUG, "BMAN offloaded buffer, mbuf: %p", mbuf);
 729
 730         if (mbuf->nb_segs == 1) {
 731                 /* Case for non-segmented buffers */
 732                 tx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr);
 733         } else if (mbuf->nb_segs > 1 &&
 734                    mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) {
 735                 if (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info->bpid)) {
 736                         DPAA_PMD_DEBUG("Unable to create Scatter Gather FD");
 737                         return 1;
 738                 }
 739         } else {
 740                 DPAA_PMD_DEBUG("Number of Segments not supported");
 741                 return 1;
 742         }
 743
 744         return 0;
 745 }
 746
 747 /* Handle all mbufs on an external pool (non-dpaa) */
 748 static inline uint16_t
 749 tx_on_external_pool(struct qman_fq *txq, struct rte_mbuf *mbuf,
 750                     struct qm_fd *fd_arr)
 751 {
 752         struct dpaa_if *dpaa_intf = txq->dpaa_intf;
 753         struct rte_mbuf *dmable_mbuf;
 754
 755         DPAA_DP_LOG(DEBUG, "Non-BMAN offloaded buffer."
 756                     "Allocating an offloaded buffer");
 757         dmable_mbuf = dpaa_get_dmable_mbuf(mbuf, dpaa_intf);
 758         if (!dmable_mbuf) {
 759                 DPAA_DP_LOG(DEBUG, "no dpaa buffers.");
 760                 return 1;
 761         }
 762
 763         DPAA_MBUF_TO_CONTIG_FD(dmable_mbuf, fd_arr, dpaa_intf->bp_info->bpid);
 764
 765         return 0;
 766 }
 767
 768 uint16_t
 769 dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
 770 {
 771         struct rte_mbuf *mbuf, *mi = NULL;
 772         struct rte_mempool *mp;
 773         struct dpaa_bp_info *bp_info;
 774         struct qm_fd fd_arr[DPAA_TX_BURST_SIZE];
 775         uint32_t frames_to_send, loop, sent = 0;
 776         uint16_t state;
 777         int ret;
 778         uint32_t seqn, index, flags[DPAA_TX_BURST_SIZE] = {0};
 779
 780         ret = rte_dpaa_portal_init((void *)0);
 781         if (ret) {
 782                 DPAA_PMD_ERR("Failure in affining portal");
 783                 return 0;
 784         }
 785
 786         DPAA_DP_LOG(DEBUG, "Transmitting %d buffers on queue: %p", nb_bufs, q);
 787
 788         while (nb_bufs) {
 789                 frames_to_send = (nb_bufs > DPAA_TX_BURST_SIZE) ?
 790                                 DPAA_TX_BURST_SIZE : nb_bufs;
 791                 for (loop = 0; loop < frames_to_send; loop++) {
 792                         mbuf = *(bufs++);
 793                         if (likely(RTE_MBUF_DIRECT(mbuf))) {
 794                                 mp = mbuf->pool;
 795                                 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
 796                                 if (likely(mp->ops_index ==
 797                                                 bp_info->dpaa_ops_index &&
 798                                         mbuf->nb_segs == 1 &&
 799                                         rte_mbuf_refcnt_read(mbuf) == 1)) {
 800                                         DPAA_MBUF_TO_CONTIG_FD(mbuf,
 801                                                 &fd_arr[loop], bp_info->bpid);
 802                                         if (mbuf->ol_flags &
 803                                                 DPAA_TX_CKSUM_OFFLOAD_MASK)
 804                                                 dpaa_unsegmented_checksum(mbuf,
 805                                                         &fd_arr[loop]);
 806                                         continue;
 807                                 }
 808                         } else {
 809                                 mi = rte_mbuf_from_indirect(mbuf);
 810                                 mp = mi->pool;
 811                         }
 812
 813                         bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
 814                         if (likely(mp->ops_index == bp_info->dpaa_ops_index)) {
 815                                 state = tx_on_dpaa_pool(mbuf, bp_info,
 816                                                         &fd_arr[loop]);
 817                                 if (unlikely(state)) {
 818                                         /* Set frames_to_send & nb_bufs so
 819                                          * that packets are transmitted till
 820                                          * previous frame.
 821                                          */
 822                                         frames_to_send = loop;
 823                                         nb_bufs = loop;
 824                                         goto send_pkts;
 825                                 }
 826                         } else {
 827                                 state = tx_on_external_pool(q, mbuf,
 828                                                             &fd_arr[loop]);
 829                                 if (unlikely(state)) {
 830                                         /* Set frames_to_send & nb_bufs so
 831                                          * that packets are transmitted till
 832                                          * previous frame.
 833                                          */
 834                                         frames_to_send = loop;
 835                                         nb_bufs = loop;
 836                                         goto send_pkts;
 837                                 }
 838                         }
 839                         seqn = mbuf->seqn;
 840                         if (seqn != DPAA_INVALID_MBUF_SEQN) {
 841                                 index = seqn - 1;
 842                                 if (DPAA_PER_LCORE_DQRR_HELD & (1 << index)) {
 843                                         flags[loop] =
 844                                            ((index & QM_EQCR_DCA_IDXMASK) << 8);
 845                                         flags[loop] |= QMAN_ENQUEUE_FLAG_DCA;
 846                                         DPAA_PER_LCORE_DQRR_SIZE--;
 847                                         DPAA_PER_LCORE_DQRR_HELD &=
 848                                                                 ~(1 << index);
 849                                 }
 850                         }
 851                 }
 852
 853 send_pkts:
 854                 loop = 0;
 855                 while (loop < frames_to_send) {
 856                         loop += qman_enqueue_multi(q, &fd_arr[loop],
 857                                                    &flags[loop],
 858                                                    frames_to_send - loop);
 859                 }
 860                 nb_bufs -= frames_to_send;
 861                 sent += frames_to_send;
 862         }
 863
 864         DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", sent, q);
 865
 866         return sent;
 867 }
 868
 869 uint16_t dpaa_eth_tx_drop_all(void *q  __rte_unused,
 870                               struct rte_mbuf **bufs __rte_unused,
 871                 uint16_t nb_bufs __rte_unused)
 872 {
 873         DPAA_DP_LOG(DEBUG, "Drop all packets");
 874
 875         /* Drop all incoming packets. No need to free packets here
 876          * because the rte_eth f/w frees up the packets through tx_buffer
 877          * callback in case this functions returns count less than nb_bufs
 878          */
 879         return 0;
 880 }