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 static void dpaa_display_frame(const struct qm_fd *fd)
  63 {
  64         int ii;
  65         char *ptr;
  66
  67         printf("%s::bpid %x addr %08x%08x, format %d off %d, len %d stat %x\n",
  68                __func__, fd->bpid, fd->addr_hi, fd->addr_lo, fd->format,
  69                 fd->offset, fd->length20, fd->status);
  70
  71         ptr = (char *)rte_dpaa_mem_ptov(fd->addr);
  72         ptr += fd->offset;
  73         printf("%02x ", *ptr);
  74         for (ii = 1; ii < fd->length20; ii++) {
  75                 printf("%02x ", *ptr);
  76                 if ((ii % 16) == 0)
  77                         printf("\n");
  78                 ptr++;
  79         }
  80         printf("\n");
  81 }
  82 #else
  83 #define dpaa_display_frame(a)
  84 #endif
  85
  86 static inline void dpaa_slow_parsing(struct rte_mbuf *m __rte_unused,
  87                                      uint64_t prs __rte_unused)
  88 {
  89         DPAA_DP_LOG(DEBUG, "Slow parsing");
  90         /*TBD:XXX: to be implemented*/
  91 }
  92
  93 static inline void dpaa_eth_packet_info(struct rte_mbuf *m, void *fd_virt_addr)
  94 {
  95         struct annotations_t *annot = GET_ANNOTATIONS(fd_virt_addr);
  96         uint64_t prs = *((uintptr_t *)(&annot->parse)) & DPAA_PARSE_MASK;
  97
  98         DPAA_DP_LOG(DEBUG, " Parsing mbuf: %p with annotations: %p", m, annot);
  99
 100         switch (prs) {
 101         case DPAA_PKT_TYPE_IPV4:
 102                 m->packet_type = RTE_PTYPE_L2_ETHER |
 103                         RTE_PTYPE_L3_IPV4;
 104                 break;
 105         case DPAA_PKT_TYPE_IPV6:
 106                 m->packet_type = RTE_PTYPE_L2_ETHER |
 107                         RTE_PTYPE_L3_IPV6;
 108                 break;
 109         case DPAA_PKT_TYPE_ETHER:
 110                 m->packet_type = RTE_PTYPE_L2_ETHER;
 111                 break;
 112         case DPAA_PKT_TYPE_IPV4_FRAG:
 113         case DPAA_PKT_TYPE_IPV4_FRAG_UDP:
 114         case DPAA_PKT_TYPE_IPV4_FRAG_TCP:
 115         case DPAA_PKT_TYPE_IPV4_FRAG_SCTP:
 116                 m->packet_type = RTE_PTYPE_L2_ETHER |
 117                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_FRAG;
 118                 break;
 119         case DPAA_PKT_TYPE_IPV6_FRAG:
 120         case DPAA_PKT_TYPE_IPV6_FRAG_UDP:
 121         case DPAA_PKT_TYPE_IPV6_FRAG_TCP:
 122         case DPAA_PKT_TYPE_IPV6_FRAG_SCTP:
 123                 m->packet_type = RTE_PTYPE_L2_ETHER |
 124                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_FRAG;
 125                 break;
 126         case DPAA_PKT_TYPE_IPV4_EXT:
 127                 m->packet_type = RTE_PTYPE_L2_ETHER |
 128                         RTE_PTYPE_L3_IPV4_EXT;
 129                 break;
 130         case DPAA_PKT_TYPE_IPV6_EXT:
 131                 m->packet_type = RTE_PTYPE_L2_ETHER |
 132                         RTE_PTYPE_L3_IPV6_EXT;
 133                 break;
 134         case DPAA_PKT_TYPE_IPV4_TCP:
 135                 m->packet_type = RTE_PTYPE_L2_ETHER |
 136                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_TCP;
 137                 break;
 138         case DPAA_PKT_TYPE_IPV6_TCP:
 139                 m->packet_type = RTE_PTYPE_L2_ETHER |
 140                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP;
 141                 break;
 142         case DPAA_PKT_TYPE_IPV4_UDP:
 143                 m->packet_type = RTE_PTYPE_L2_ETHER |
 144                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_UDP;
 145                 break;
 146         case DPAA_PKT_TYPE_IPV6_UDP:
 147                 m->packet_type = RTE_PTYPE_L2_ETHER |
 148                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP;
 149                 break;
 150         case DPAA_PKT_TYPE_IPV4_EXT_UDP:
 151                 m->packet_type = RTE_PTYPE_L2_ETHER |
 152                         RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_UDP;
 153                 break;
 154         case DPAA_PKT_TYPE_IPV6_EXT_UDP:
 155                 m->packet_type = RTE_PTYPE_L2_ETHER |
 156                         RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_UDP;
 157                 break;
 158         case DPAA_PKT_TYPE_IPV4_EXT_TCP:
 159                 m->packet_type = RTE_PTYPE_L2_ETHER |
 160                         RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_TCP;
 161                 break;
 162         case DPAA_PKT_TYPE_IPV6_EXT_TCP:
 163                 m->packet_type = RTE_PTYPE_L2_ETHER |
 164                         RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_TCP;
 165                 break;
 166         case DPAA_PKT_TYPE_IPV4_SCTP:
 167                 m->packet_type = RTE_PTYPE_L2_ETHER |
 168                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_SCTP;
 169                 break;
 170         case DPAA_PKT_TYPE_IPV6_SCTP:
 171                 m->packet_type = RTE_PTYPE_L2_ETHER |
 172                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_SCTP;
 173                 break;
 174         case DPAA_PKT_TYPE_NONE:
 175                 m->packet_type = 0;
 176                 break;
 177         /* More switch cases can be added */
 178         default:
 179                 dpaa_slow_parsing(m, prs);
 180         }
 181
 182         m->tx_offload = annot->parse.ip_off[0];
 183         m->tx_offload |= (annot->parse.l4_off - annot->parse.ip_off[0])
 184                                         << DPAA_PKT_L3_LEN_SHIFT;
 185
 186         /* Set the hash values */
 187         m->hash.rss = (uint32_t)(annot->hash);
 188         /* All packets with Bad checksum are dropped by interface (and
 189          * corresponding notification issued to RX error queues).
 190          */
 191         m->ol_flags = PKT_RX_RSS_HASH | PKT_RX_IP_CKSUM_GOOD;
 192
 193         /* Check if Vlan is present */
 194         if (prs & DPAA_PARSE_VLAN_MASK)
 195                 m->ol_flags |= PKT_RX_VLAN;
 196         /* Packet received without stripping the vlan */
 197 }
 198
 199 static inline void dpaa_checksum(struct rte_mbuf *mbuf)
 200 {
 201         struct ether_hdr *eth_hdr = rte_pktmbuf_mtod(mbuf, struct ether_hdr *);
 202         char *l3_hdr = (char *)eth_hdr + mbuf->l2_len;
 203         struct ipv4_hdr *ipv4_hdr = (struct ipv4_hdr *)l3_hdr;
 204         struct ipv6_hdr *ipv6_hdr = (struct ipv6_hdr *)l3_hdr;
 205
 206         DPAA_DP_LOG(DEBUG, "Calculating checksum for mbuf: %p", mbuf);
 207
 208         if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) ||
 209             ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 210             RTE_PTYPE_L3_IPV4_EXT)) {
 211                 ipv4_hdr = (struct ipv4_hdr *)l3_hdr;
 212                 ipv4_hdr->hdr_checksum = 0;
 213                 ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr);
 214         } else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 215                    RTE_PTYPE_L3_IPV6) ||
 216                    ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 217                    RTE_PTYPE_L3_IPV6_EXT))
 218                 ipv6_hdr = (struct ipv6_hdr *)l3_hdr;
 219
 220         if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) {
 221                 struct tcp_hdr *tcp_hdr = (struct tcp_hdr *)(l3_hdr +
 222                                           mbuf->l3_len);
 223                 tcp_hdr->cksum = 0;
 224                 if (eth_hdr->ether_type == htons(ETHER_TYPE_IPv4))
 225                         tcp_hdr->cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
 226                                                                tcp_hdr);
 227                 else /* assume ethertype == ETHER_TYPE_IPv6 */
 228                         tcp_hdr->cksum = rte_ipv6_udptcp_cksum(ipv6_hdr,
 229                                                                tcp_hdr);
 230         } else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) ==
 231                    RTE_PTYPE_L4_UDP) {
 232                 struct udp_hdr *udp_hdr = (struct udp_hdr *)(l3_hdr +
 233                                                              mbuf->l3_len);
 234                 udp_hdr->dgram_cksum = 0;
 235                 if (eth_hdr->ether_type == htons(ETHER_TYPE_IPv4))
 236                         udp_hdr->dgram_cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
 237                                                                      udp_hdr);
 238                 else /* assume ethertype == ETHER_TYPE_IPv6 */
 239                         udp_hdr->dgram_cksum = rte_ipv6_udptcp_cksum(ipv6_hdr,
 240                                                                      udp_hdr);
 241         }
 242 }
 243
 244 static inline void dpaa_checksum_offload(struct rte_mbuf *mbuf,
 245                                          struct qm_fd *fd, char *prs_buf)
 246 {
 247         struct dpaa_eth_parse_results_t *prs;
 248
 249         DPAA_DP_LOG(DEBUG, " Offloading checksum for mbuf: %p", mbuf);
 250
 251         prs = GET_TX_PRS(prs_buf);
 252         prs->l3r = 0;
 253         prs->l4r = 0;
 254         if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) ||
 255            ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 256            RTE_PTYPE_L3_IPV4_EXT))
 257                 prs->l3r = DPAA_L3_PARSE_RESULT_IPV4;
 258         else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 259                    RTE_PTYPE_L3_IPV6) ||
 260                  ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 261                 RTE_PTYPE_L3_IPV6_EXT))
 262                 prs->l3r = DPAA_L3_PARSE_RESULT_IPV6;
 263
 264         if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP)
 265                 prs->l4r = DPAA_L4_PARSE_RESULT_TCP;
 266         else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_UDP)
 267                 prs->l4r = DPAA_L4_PARSE_RESULT_UDP;
 268
 269         prs->ip_off[0] = mbuf->l2_len;
 270         prs->l4_off = mbuf->l3_len + mbuf->l2_len;
 271         /* Enable L3 (and L4, if TCP or UDP) HW checksum*/
 272         fd->cmd = DPAA_FD_CMD_RPD | DPAA_FD_CMD_DTC;
 273 }
 274
 275 static inline void
 276 dpaa_unsegmented_checksum(struct rte_mbuf *mbuf, struct qm_fd *fd_arr)
 277 {
 278         if (!mbuf->packet_type) {
 279                 struct rte_net_hdr_lens hdr_lens;
 280
 281                 mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens,
 282                                 RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK
 283                                 | RTE_PTYPE_L4_MASK);
 284                 mbuf->l2_len = hdr_lens.l2_len;
 285                 mbuf->l3_len = hdr_lens.l3_len;
 286         }
 287         if (mbuf->data_off < (DEFAULT_TX_ICEOF +
 288             sizeof(struct dpaa_eth_parse_results_t))) {
 289                 DPAA_DP_LOG(DEBUG, "Checksum offload Err: "
 290                         "Not enough Headroom "
 291                         "space for correct Checksum offload."
 292                         "So Calculating checksum in Software.");
 293                 dpaa_checksum(mbuf);
 294         } else {
 295                 dpaa_checksum_offload(mbuf, fd_arr, mbuf->buf_addr);
 296         }
 297 }
 298
 299 struct rte_mbuf *
 300 dpaa_eth_sg_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
 301 {
 302         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
 303         struct rte_mbuf *first_seg, *prev_seg, *cur_seg, *temp;
 304         struct qm_sg_entry *sgt, *sg_temp;
 305         void *vaddr, *sg_vaddr;
 306         int i = 0;
 307         uint8_t fd_offset = fd->offset;
 308
 309         DPAA_DP_LOG(DEBUG, "Received an SG frame");
 310
 311         vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 312         if (!vaddr) {
 313                 DPAA_PMD_ERR("unable to convert physical address");
 314                 return NULL;
 315         }
 316         sgt = vaddr + fd_offset;
 317         sg_temp = &sgt[i++];
 318         hw_sg_to_cpu(sg_temp);
 319         temp = (struct rte_mbuf *)((char *)vaddr - bp_info->meta_data_size);
 320         sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_sg_entry_get64(sg_temp));
 321
 322         first_seg = (struct rte_mbuf *)((char *)sg_vaddr -
 323                                                 bp_info->meta_data_size);
 324         first_seg->data_off = sg_temp->offset;
 325         first_seg->data_len = sg_temp->length;
 326         first_seg->pkt_len = sg_temp->length;
 327         rte_mbuf_refcnt_set(first_seg, 1);
 328
 329         first_seg->port = ifid;
 330         first_seg->nb_segs = 1;
 331         first_seg->ol_flags = 0;
 332         prev_seg = first_seg;
 333         while (i < DPAA_SGT_MAX_ENTRIES) {
 334                 sg_temp = &sgt[i++];
 335                 hw_sg_to_cpu(sg_temp);
 336                 sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info,
 337                                              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, 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;
 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         ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 376
 377         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 378
 379         offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT;
 380         length = fd->opaque & DPAA_FD_LENGTH_MASK;
 381
 382         /* Ignoring case when format != qm_fd_contig */
 383         dpaa_display_frame(fd);
 384
 385         mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 386
 387         mbuf->data_off = offset;
 388         mbuf->data_len = length;
 389         mbuf->pkt_len = length;
 390
 391         mbuf->port = ifid;
 392         mbuf->nb_segs = 1;
 393         mbuf->ol_flags = 0;
 394         mbuf->next = NULL;
 395         rte_mbuf_refcnt_set(mbuf, 1);
 396         dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
 397
 398         return mbuf;
 399 }
 400
 401 void
 402 dpaa_rx_cb(struct qman_fq **fq, struct qm_dqrr_entry **dqrr,
 403            void **bufs, int num_bufs)
 404 {
 405         struct rte_mbuf *mbuf;
 406         struct dpaa_bp_info *bp_info;
 407         const struct qm_fd *fd;
 408         void *ptr;
 409         struct dpaa_if *dpaa_intf;
 410         uint16_t offset, i;
 411         uint32_t length;
 412         uint8_t format;
 413
 414         if (dpaa_svr_family != SVR_LS1046A_FAMILY) {
 415                 bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[0]->fd.bpid);
 416                 ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[0]->fd));
 417                 rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 418                 bufs[0] = (struct rte_mbuf *)((char *)ptr -
 419                                 bp_info->meta_data_size);
 420         }
 421
 422         for (i = 0; i < num_bufs; i++) {
 423                 if (dpaa_svr_family != SVR_LS1046A_FAMILY &&
 424                     i < num_bufs - 1) {
 425                         bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[i + 1]->fd.bpid);
 426                         ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[i + 1]->fd));
 427                         rte_prefetch0((void *)((uint8_t *)ptr +
 428                                         DEFAULT_RX_ICEOF));
 429                         bufs[i + 1] = (struct rte_mbuf *)((char *)ptr -
 430                                         bp_info->meta_data_size);
 431                 }
 432
 433                 fd = &dqrr[i]->fd;
 434                 dpaa_intf = fq[0]->dpaa_intf;
 435
 436                 format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
 437                                 DPAA_FD_FORMAT_SHIFT;
 438                 if (unlikely(format == qm_fd_sg)) {
 439                         bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid);
 440                         continue;
 441                 }
 442
 443                 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >>
 444                                 DPAA_FD_OFFSET_SHIFT;
 445                 length = fd->opaque & DPAA_FD_LENGTH_MASK;
 446
 447                 mbuf = bufs[i];
 448                 mbuf->data_off = offset;
 449                 mbuf->data_len = length;
 450                 mbuf->pkt_len = length;
 451                 mbuf->port = dpaa_intf->ifid;
 452
 453                 mbuf->nb_segs = 1;
 454                 mbuf->ol_flags = 0;
 455                 mbuf->next = NULL;
 456                 rte_mbuf_refcnt_set(mbuf, 1);
 457                 dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
 458         }
 459 }
 460
 461 void dpaa_rx_cb_prepare(struct qm_dqrr_entry *dq, void **bufs)
 462 {
 463         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(dq->fd.bpid);
 464         void *ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dq->fd));
 465
 466         /* In case of LS1046, annotation stashing is disabled due to L2 cache
 467          * being bottleneck in case of multicore scanario for this platform.
 468          * So we prefetch the annoation beforehand, so that it is available
 469          * in cache when accessed.
 470          */
 471         if (dpaa_svr_family == SVR_LS1046A_FAMILY)
 472                 rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 473
 474         *bufs = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 475 }
 476
 477 static uint16_t
 478 dpaa_eth_queue_portal_rx(struct qman_fq *fq,
 479                          struct rte_mbuf **bufs,
 480                          uint16_t nb_bufs)
 481 {
 482         int ret;
 483
 484         if (unlikely(fq->qp == NULL)) {
 485                 ret = rte_dpaa_portal_fq_init((void *)0, fq);
 486                 if (ret) {
 487                         DPAA_PMD_ERR("Failure in affining portal %d", ret);
 488                         return 0;
 489                 }
 490         }
 491
 492         return qman_portal_poll_rx(nb_bufs, (void **)bufs, fq->qp);
 493 }
 494
 495 enum qman_cb_dqrr_result
 496 dpaa_rx_cb_parallel(void *event,
 497                     struct qman_portal *qm __always_unused,
 498                     struct qman_fq *fq,
 499                     const struct qm_dqrr_entry *dqrr,
 500                     void **bufs)
 501 {
 502         u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 503         struct rte_mbuf *mbuf;
 504         struct rte_event *ev = (struct rte_event *)event;
 505
 506         mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
 507         ev->event_ptr = (void *)mbuf;
 508         ev->flow_id = fq->ev.flow_id;
 509         ev->sub_event_type = fq->ev.sub_event_type;
 510         ev->event_type = RTE_EVENT_TYPE_ETHDEV;
 511         ev->op = RTE_EVENT_OP_NEW;
 512         ev->sched_type = fq->ev.sched_type;
 513         ev->queue_id = fq->ev.queue_id;
 514         ev->priority = fq->ev.priority;
 515         ev->impl_opaque = (uint8_t)DPAA_INVALID_MBUF_SEQN;
 516         mbuf->seqn = DPAA_INVALID_MBUF_SEQN;
 517         *bufs = mbuf;
 518
 519         return qman_cb_dqrr_consume;
 520 }
 521
 522 enum qman_cb_dqrr_result
 523 dpaa_rx_cb_atomic(void *event,
 524                   struct qman_portal *qm __always_unused,
 525                   struct qman_fq *fq,
 526                   const struct qm_dqrr_entry *dqrr,
 527                   void **bufs)
 528 {
 529         u8 index;
 530         u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 531         struct rte_mbuf *mbuf;
 532         struct rte_event *ev = (struct rte_event *)event;
 533
 534         mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
 535         ev->event_ptr = (void *)mbuf;
 536         ev->flow_id = fq->ev.flow_id;
 537         ev->sub_event_type = fq->ev.sub_event_type;
 538         ev->event_type = RTE_EVENT_TYPE_ETHDEV;
 539         ev->op = RTE_EVENT_OP_NEW;
 540         ev->sched_type = fq->ev.sched_type;
 541         ev->queue_id = fq->ev.queue_id;
 542         ev->priority = fq->ev.priority;
 543
 544         /* Save active dqrr entries */
 545         index = DQRR_PTR2IDX(dqrr);
 546         DPAA_PER_LCORE_DQRR_SIZE++;
 547         DPAA_PER_LCORE_DQRR_HELD |= 1 << index;
 548         DPAA_PER_LCORE_DQRR_MBUF(index) = mbuf;
 549         ev->impl_opaque = index + 1;
 550         mbuf->seqn = (uint32_t)index + 1;
 551         *bufs = mbuf;
 552
 553         return qman_cb_dqrr_defer;
 554 }
 555
 556 uint16_t dpaa_eth_queue_rx(void *q,
 557                            struct rte_mbuf **bufs,
 558                            uint16_t nb_bufs)
 559 {
 560         struct qman_fq *fq = q;
 561         struct qm_dqrr_entry *dq;
 562         uint32_t num_rx = 0, ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 563         int ret;
 564
 565         if (likely(fq->is_static))
 566                 return dpaa_eth_queue_portal_rx(fq, bufs, nb_bufs);
 567
 568         if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
 569                 ret = rte_dpaa_portal_init((void *)0);
 570                 if (ret) {
 571                         DPAA_PMD_ERR("Failure in affining portal");
 572                         return 0;
 573                 }
 574         }
 575
 576         ret = qman_set_vdq(fq, (nb_bufs > DPAA_MAX_DEQUEUE_NUM_FRAMES) ?
 577                                 DPAA_MAX_DEQUEUE_NUM_FRAMES : nb_bufs);
 578         if (ret)
 579                 return 0;
 580
 581         do {
 582                 dq = qman_dequeue(fq);
 583                 if (!dq)
 584                         continue;
 585                 bufs[num_rx++] = dpaa_eth_fd_to_mbuf(&dq->fd, ifid);
 586                 qman_dqrr_consume(fq, dq);
 587         } while (fq->flags & QMAN_FQ_STATE_VDQCR);
 588
 589         return num_rx;
 590 }
 591
 592 static void *dpaa_get_pktbuf(struct dpaa_bp_info *bp_info)
 593 {
 594         int ret;
 595         size_t buf = 0;
 596         struct bm_buffer bufs;
 597
 598         ret = bman_acquire(bp_info->bp, &bufs, 1, 0);
 599         if (ret <= 0) {
 600                 DPAA_PMD_WARN("Failed to allocate buffers %d", ret);
 601                 return (void *)buf;
 602         }
 603
 604         DPAA_DP_LOG(DEBUG, "got buffer 0x%" PRIx64 " from pool %d",
 605                     (uint64_t)bufs.addr, bufs.bpid);
 606
 607         buf = (size_t)DPAA_MEMPOOL_PTOV(bp_info, bufs.addr)
 608                                 - bp_info->meta_data_size;
 609         if (!buf)
 610                 goto out;
 611
 612 out:
 613         return (void *)buf;
 614 }
 615
 616 static struct rte_mbuf *dpaa_get_dmable_mbuf(struct rte_mbuf *mbuf,
 617                                              struct dpaa_if *dpaa_intf)
 618 {
 619         struct rte_mbuf *dpaa_mbuf;
 620
 621         /* allocate pktbuffer on bpid for dpaa port */
 622         dpaa_mbuf = dpaa_get_pktbuf(dpaa_intf->bp_info);
 623         if (!dpaa_mbuf)
 624                 return NULL;
 625
 626         memcpy((uint8_t *)(dpaa_mbuf->buf_addr) + RTE_PKTMBUF_HEADROOM, (void *)
 627                 ((uint8_t *)(mbuf->buf_addr) + mbuf->data_off), mbuf->pkt_len);
 628
 629         /* Copy only the required fields */
 630         dpaa_mbuf->data_off = RTE_PKTMBUF_HEADROOM;
 631         dpaa_mbuf->pkt_len = mbuf->pkt_len;
 632         dpaa_mbuf->ol_flags = mbuf->ol_flags;
 633         dpaa_mbuf->packet_type = mbuf->packet_type;
 634         dpaa_mbuf->tx_offload = mbuf->tx_offload;
 635         rte_pktmbuf_free(mbuf);
 636         return dpaa_mbuf;
 637 }
 638
 639 int
 640 dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
 641                 struct qm_fd *fd,
 642                 uint32_t bpid)
 643 {
 644         struct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL;
 645         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(bpid);
 646         struct rte_mbuf *temp, *mi;
 647         struct qm_sg_entry *sg_temp, *sgt;
 648         int i = 0;
 649
 650         DPAA_DP_LOG(DEBUG, "Creating SG FD to transmit");
 651
 652         temp = rte_pktmbuf_alloc(bp_info->mp);
 653         if (!temp) {
 654                 DPAA_PMD_ERR("Failure in allocation of mbuf");
 655                 return -1;
 656         }
 657         if (temp->buf_len < ((mbuf->nb_segs * sizeof(struct qm_sg_entry))
 658                                 + temp->data_off)) {
 659                 DPAA_PMD_ERR("Insufficient space in mbuf for SG entries");
 660                 return -1;
 661         }
 662
 663         fd->cmd = 0;
 664         fd->opaque_addr = 0;
 665
 666         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) {
 667                 if (!mbuf->packet_type) {
 668                         struct rte_net_hdr_lens hdr_lens;
 669
 670                         mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens,
 671                                         RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK
 672                                         | RTE_PTYPE_L4_MASK);
 673                         mbuf->l2_len = hdr_lens.l2_len;
 674                         mbuf->l3_len = hdr_lens.l3_len;
 675                 }
 676                 if (temp->data_off < DEFAULT_TX_ICEOF
 677                         + sizeof(struct dpaa_eth_parse_results_t))
 678                         temp->data_off = DEFAULT_TX_ICEOF
 679                                 + sizeof(struct dpaa_eth_parse_results_t);
 680                 dcbz_64(temp->buf_addr);
 681                 dpaa_checksum_offload(mbuf, fd, temp->buf_addr);
 682         }
 683
 684         sgt = temp->buf_addr + temp->data_off;
 685         fd->format = QM_FD_SG;
 686         fd->addr = temp->buf_iova;
 687         fd->offset = temp->data_off;
 688         fd->bpid = bpid;
 689         fd->length20 = mbuf->pkt_len;
 690
 691         while (i < DPAA_SGT_MAX_ENTRIES) {
 692                 sg_temp = &sgt[i++];
 693                 sg_temp->opaque = 0;
 694                 sg_temp->val = 0;
 695                 sg_temp->addr = cur_seg->buf_iova;
 696                 sg_temp->offset = cur_seg->data_off;
 697                 sg_temp->length = cur_seg->data_len;
 698                 if (RTE_MBUF_DIRECT(cur_seg)) {
 699                         if (rte_mbuf_refcnt_read(cur_seg) > 1) {
 700                                 /*If refcnt > 1, invalid bpid is set to ensure
 701                                  * buffer is not freed by HW.
 702                                  */
 703                                 sg_temp->bpid = 0xff;
 704                                 rte_mbuf_refcnt_update(cur_seg, -1);
 705                         } else {
 706                                 sg_temp->bpid =
 707                                         DPAA_MEMPOOL_TO_BPID(cur_seg->pool);
 708                         }
 709                         cur_seg = cur_seg->next;
 710                 } else {
 711                         /* Get owner MBUF from indirect buffer */
 712                         mi = rte_mbuf_from_indirect(cur_seg);
 713                         if (rte_mbuf_refcnt_read(mi) > 1) {
 714                                 /*If refcnt > 1, invalid bpid is set to ensure
 715                                  * owner buffer is not freed by HW.
 716                                  */
 717                                 sg_temp->bpid = 0xff;
 718                         } else {
 719                                 sg_temp->bpid = DPAA_MEMPOOL_TO_BPID(mi->pool);
 720                                 rte_mbuf_refcnt_update(mi, 1);
 721                         }
 722                         prev_seg = cur_seg;
 723                         cur_seg = cur_seg->next;
 724                         prev_seg->next = NULL;
 725                         rte_pktmbuf_free(prev_seg);
 726                 }
 727                 if (cur_seg == NULL) {
 728                         sg_temp->final = 1;
 729                         cpu_to_hw_sg(sg_temp);
 730                         break;
 731                 }
 732                 cpu_to_hw_sg(sg_temp);
 733         }
 734         return 0;
 735 }
 736
 737 /* Handle mbufs which are not segmented (non SG) */
 738 static inline void
 739 tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf,
 740                             struct dpaa_bp_info *bp_info,
 741                             struct qm_fd *fd_arr)
 742 {
 743         struct rte_mbuf *mi = NULL;
 744
 745         if (RTE_MBUF_DIRECT(mbuf)) {
 746                 if (rte_mbuf_refcnt_read(mbuf) > 1) {
 747                         /* In case of direct mbuf and mbuf being cloned,
 748                          * BMAN should _not_ release buffer.
 749                          */
 750                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
 751                         /* Buffer should be releasd by EAL */
 752                         rte_mbuf_refcnt_update(mbuf, -1);
 753                 } else {
 754                         /* In case of direct mbuf and no cloning, mbuf can be
 755                          * released by BMAN.
 756                          */
 757                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
 758                 }
 759         } else {
 760                 /* This is data-containing core mbuf: 'mi' */
 761                 mi = rte_mbuf_from_indirect(mbuf);
 762                 if (rte_mbuf_refcnt_read(mi) > 1) {
 763                         /* In case of indirect mbuf, and mbuf being cloned,
 764                          * BMAN should _not_ release it and let EAL release
 765                          * it through pktmbuf_free below.
 766                          */
 767                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
 768                 } else {
 769                         /* In case of indirect mbuf, and no cloning, core mbuf
 770                          * should be released by BMAN.
 771                          * Increate refcnt of core mbuf so that when
 772                          * pktmbuf_free is called and mbuf is released, EAL
 773                          * doesn't try to release core mbuf which would have
 774                          * been released by BMAN.
 775                          */
 776                         rte_mbuf_refcnt_update(mi, 1);
 777                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
 778                 }
 779                 rte_pktmbuf_free(mbuf);
 780         }
 781
 782         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK)
 783                 dpaa_unsegmented_checksum(mbuf, fd_arr);
 784 }
 785
 786 /* Handle all mbufs on dpaa BMAN managed pool */
 787 static inline uint16_t
 788 tx_on_dpaa_pool(struct rte_mbuf *mbuf,
 789                 struct dpaa_bp_info *bp_info,
 790                 struct qm_fd *fd_arr)
 791 {
 792         DPAA_DP_LOG(DEBUG, "BMAN offloaded buffer, mbuf: %p", mbuf);
 793
 794         if (mbuf->nb_segs == 1) {
 795                 /* Case for non-segmented buffers */
 796                 tx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr);
 797         } else if (mbuf->nb_segs > 1 &&
 798                    mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) {
 799                 if (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info->bpid)) {
 800                         DPAA_PMD_DEBUG("Unable to create Scatter Gather FD");
 801                         return 1;
 802                 }
 803         } else {
 804                 DPAA_PMD_DEBUG("Number of Segments not supported");
 805                 return 1;
 806         }
 807
 808         return 0;
 809 }
 810
 811 /* Handle all mbufs on an external pool (non-dpaa) */
 812 static inline uint16_t
 813 tx_on_external_pool(struct qman_fq *txq, struct rte_mbuf *mbuf,
 814                     struct qm_fd *fd_arr)
 815 {
 816         struct dpaa_if *dpaa_intf = txq->dpaa_intf;
 817         struct rte_mbuf *dmable_mbuf;
 818
 819         DPAA_DP_LOG(DEBUG, "Non-BMAN offloaded buffer."
 820                     "Allocating an offloaded buffer");
 821         dmable_mbuf = dpaa_get_dmable_mbuf(mbuf, dpaa_intf);
 822         if (!dmable_mbuf) {
 823                 DPAA_DP_LOG(DEBUG, "no dpaa buffers.");
 824                 return 1;
 825         }
 826
 827         DPAA_MBUF_TO_CONTIG_FD(dmable_mbuf, fd_arr, dpaa_intf->bp_info->bpid);
 828         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK)
 829                 dpaa_unsegmented_checksum(mbuf, fd_arr);
 830
 831         return 0;
 832 }
 833
 834 uint16_t
 835 dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
 836 {
 837         struct rte_mbuf *mbuf, *mi = NULL;
 838         struct rte_mempool *mp;
 839         struct dpaa_bp_info *bp_info;
 840         struct qm_fd fd_arr[DPAA_TX_BURST_SIZE];
 841         uint32_t frames_to_send, loop, sent = 0;
 842         uint16_t state;
 843         int ret;
 844         uint32_t seqn, index, flags[DPAA_TX_BURST_SIZE] = {0};
 845
 846         if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
 847                 ret = rte_dpaa_portal_init((void *)0);
 848                 if (ret) {
 849                         DPAA_PMD_ERR("Failure in affining portal");
 850                         return 0;
 851                 }
 852         }
 853
 854         DPAA_DP_LOG(DEBUG, "Transmitting %d buffers on queue: %p", nb_bufs, q);
 855
 856         while (nb_bufs) {
 857                 frames_to_send = (nb_bufs > DPAA_TX_BURST_SIZE) ?
 858                                 DPAA_TX_BURST_SIZE : nb_bufs;
 859                 for (loop = 0; loop < frames_to_send; loop++) {
 860                         mbuf = *(bufs++);
 861                         if (likely(RTE_MBUF_DIRECT(mbuf))) {
 862                                 mp = mbuf->pool;
 863                                 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
 864                                 if (likely(mp->ops_index ==
 865                                                 bp_info->dpaa_ops_index &&
 866                                         mbuf->nb_segs == 1 &&
 867                                         rte_mbuf_refcnt_read(mbuf) == 1)) {
 868                                         DPAA_MBUF_TO_CONTIG_FD(mbuf,
 869                                                 &fd_arr[loop], bp_info->bpid);
 870                                         if (mbuf->ol_flags &
 871                                                 DPAA_TX_CKSUM_OFFLOAD_MASK)
 872                                                 dpaa_unsegmented_checksum(mbuf,
 873                                                         &fd_arr[loop]);
 874                                         continue;
 875                                 }
 876                         } else {
 877                                 mi = rte_mbuf_from_indirect(mbuf);
 878                                 mp = mi->pool;
 879                         }
 880
 881                         bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
 882                         if (likely(mp->ops_index == bp_info->dpaa_ops_index)) {
 883                                 state = tx_on_dpaa_pool(mbuf, bp_info,
 884                                                         &fd_arr[loop]);
 885                                 if (unlikely(state)) {
 886                                         /* Set frames_to_send & nb_bufs so
 887                                          * that packets are transmitted till
 888                                          * previous frame.
 889                                          */
 890                                         frames_to_send = loop;
 891                                         nb_bufs = loop;
 892                                         goto send_pkts;
 893                                 }
 894                         } else {
 895                                 state = tx_on_external_pool(q, mbuf,
 896                                                             &fd_arr[loop]);
 897                                 if (unlikely(state)) {
 898                                         /* Set frames_to_send & nb_bufs so
 899                                          * that packets are transmitted till
 900                                          * previous frame.
 901                                          */
 902                                         frames_to_send = loop;
 903                                         nb_bufs = loop;
 904                                         goto send_pkts;
 905                                 }
 906                         }
 907                         seqn = mbuf->seqn;
 908                         if (seqn != DPAA_INVALID_MBUF_SEQN) {
 909                                 index = seqn - 1;
 910                                 if (DPAA_PER_LCORE_DQRR_HELD & (1 << index)) {
 911                                         flags[loop] =
 912                                            ((index & QM_EQCR_DCA_IDXMASK) << 8);
 913                                         flags[loop] |= QMAN_ENQUEUE_FLAG_DCA;
 914                                         DPAA_PER_LCORE_DQRR_SIZE--;
 915                                         DPAA_PER_LCORE_DQRR_HELD &=
 916                                                                 ~(1 << index);
 917                                 }
 918                         }
 919                 }
 920
 921 send_pkts:
 922                 loop = 0;
 923                 while (loop < frames_to_send) {
 924                         loop += qman_enqueue_multi(q, &fd_arr[loop],
 925                                                    &flags[loop],
 926                                                    frames_to_send - loop);
 927                 }
 928                 nb_bufs -= frames_to_send;
 929                 sent += frames_to_send;
 930         }
 931
 932         DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", sent, q);
 933
 934         return sent;
 935 }
 936
 937 uint16_t dpaa_eth_tx_drop_all(void *q  __rte_unused,
 938                               struct rte_mbuf **bufs __rte_unused,
 939                 uint16_t nb_bufs __rte_unused)
 940 {
 941         DPAA_DP_LOG(DEBUG, "Drop all packets");
 942
 943         /* Drop all incoming packets. No need to free packets here
 944          * because the rte_eth f/w frees up the packets through tx_buffer
 945          * callback in case this functions returns count less than nb_bufs
 946          */
 947         return 0;
 948 }