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 2017,2019 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         vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 310         if (!vaddr) {
 311                 DPAA_PMD_ERR("unable to convert physical address");
 312                 return NULL;
 313         }
 314         sgt = vaddr + fd_offset;
 315         sg_temp = &sgt[i++];
 316         hw_sg_to_cpu(sg_temp);
 317         temp = (struct rte_mbuf *)((char *)vaddr - bp_info->meta_data_size);
 318         sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_sg_entry_get64(sg_temp));
 319
 320         first_seg = (struct rte_mbuf *)((char *)sg_vaddr -
 321                                                 bp_info->meta_data_size);
 322         first_seg->data_off = sg_temp->offset;
 323         first_seg->data_len = sg_temp->length;
 324         first_seg->pkt_len = sg_temp->length;
 325         rte_mbuf_refcnt_set(first_seg, 1);
 326
 327         first_seg->port = ifid;
 328         first_seg->nb_segs = 1;
 329         first_seg->ol_flags = 0;
 330         prev_seg = first_seg;
 331         while (i < DPAA_SGT_MAX_ENTRIES) {
 332                 sg_temp = &sgt[i++];
 333                 hw_sg_to_cpu(sg_temp);
 334                 sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info,
 335                                              qm_sg_entry_get64(sg_temp));
 336                 cur_seg = (struct rte_mbuf *)((char *)sg_vaddr -
 337                                                       bp_info->meta_data_size);
 338                 cur_seg->data_off = sg_temp->offset;
 339                 cur_seg->data_len = sg_temp->length;
 340                 first_seg->pkt_len += sg_temp->length;
 341                 first_seg->nb_segs += 1;
 342                 rte_mbuf_refcnt_set(cur_seg, 1);
 343                 prev_seg->next = cur_seg;
 344                 if (sg_temp->final) {
 345                         cur_seg->next = NULL;
 346                         break;
 347                 }
 348                 prev_seg = cur_seg;
 349         }
 350         DPAA_DP_LOG(DEBUG, "Received an SG frame len =%d, num_sg =%d",
 351                         first_seg->pkt_len, first_seg->nb_segs);
 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         if (unlikely(format == qm_fd_sg))
 371                 return dpaa_eth_sg_to_mbuf(fd, ifid);
 372
 373         offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT;
 374         length = fd->opaque & DPAA_FD_LENGTH_MASK;
 375
 376         DPAA_DP_LOG(DEBUG, " FD--->MBUF off %d len = %d", offset, length);
 377
 378         /* Ignoring case when format != qm_fd_contig */
 379         dpaa_display_frame(fd);
 380         ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 381
 382         mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 383         /* Prefetch the Parse results and packet data to L1 */
 384         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 385
 386         mbuf->data_off = offset;
 387         mbuf->data_len = length;
 388         mbuf->pkt_len = length;
 389
 390         mbuf->port = ifid;
 391         mbuf->nb_segs = 1;
 392         mbuf->ol_flags = 0;
 393         mbuf->next = NULL;
 394         rte_mbuf_refcnt_set(mbuf, 1);
 395         dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
 396
 397         return mbuf;
 398 }
 399
 400 /* Specific for LS1043 */
 401 void
 402 dpaa_rx_cb_no_prefetch(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         bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[0]->fd.bpid);
 415         ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[0]->fd));
 416         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 417         bufs[0] = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 418
 419         for (i = 0; i < num_bufs; i++) {
 420                 if (i < num_bufs - 1) {
 421                         bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[i + 1]->fd.bpid);
 422                         ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[i + 1]->fd));
 423                         rte_prefetch0((void *)((uint8_t *)ptr +
 424                                         DEFAULT_RX_ICEOF));
 425                         bufs[i + 1] = (struct rte_mbuf *)((char *)ptr -
 426                                         bp_info->meta_data_size);
 427                 }
 428
 429                 fd = &dqrr[i]->fd;
 430                 dpaa_intf = fq[0]->dpaa_intf;
 431
 432                 format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
 433                                 DPAA_FD_FORMAT_SHIFT;
 434                 if (unlikely(format == qm_fd_sg)) {
 435                         bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid);
 436                         continue;
 437                 }
 438
 439                 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >>
 440                                 DPAA_FD_OFFSET_SHIFT;
 441                 length = fd->opaque & DPAA_FD_LENGTH_MASK;
 442
 443                 mbuf = bufs[i];
 444                 mbuf->data_off = offset;
 445                 mbuf->data_len = length;
 446                 mbuf->pkt_len = length;
 447                 mbuf->port = dpaa_intf->ifid;
 448
 449                 mbuf->nb_segs = 1;
 450                 mbuf->ol_flags = 0;
 451                 mbuf->next = NULL;
 452                 rte_mbuf_refcnt_set(mbuf, 1);
 453                 dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
 454         }
 455 }
 456
 457 void
 458 dpaa_rx_cb(struct qman_fq **fq, struct qm_dqrr_entry **dqrr,
 459            void **bufs, int num_bufs)
 460 {
 461         struct rte_mbuf *mbuf;
 462         const struct qm_fd *fd;
 463         struct dpaa_if *dpaa_intf;
 464         uint16_t offset, i;
 465         uint32_t length;
 466         uint8_t format;
 467
 468         for (i = 0; i < num_bufs; i++) {
 469                 fd = &dqrr[i]->fd;
 470                 dpaa_intf = fq[0]->dpaa_intf;
 471
 472                 format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
 473                                 DPAA_FD_FORMAT_SHIFT;
 474                 if (unlikely(format == qm_fd_sg)) {
 475                         bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid);
 476                         continue;
 477                 }
 478
 479                 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >>
 480                                 DPAA_FD_OFFSET_SHIFT;
 481                 length = fd->opaque & DPAA_FD_LENGTH_MASK;
 482
 483                 mbuf = bufs[i];
 484                 mbuf->data_off = offset;
 485                 mbuf->data_len = length;
 486                 mbuf->pkt_len = length;
 487                 mbuf->port = dpaa_intf->ifid;
 488
 489                 mbuf->nb_segs = 1;
 490                 mbuf->ol_flags = 0;
 491                 mbuf->next = NULL;
 492                 rte_mbuf_refcnt_set(mbuf, 1);
 493                 dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
 494         }
 495 }
 496
 497 void dpaa_rx_cb_prepare(struct qm_dqrr_entry *dq, void **bufs)
 498 {
 499         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(dq->fd.bpid);
 500         void *ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dq->fd));
 501
 502         /* In case of LS1046, annotation stashing is disabled due to L2 cache
 503          * being bottleneck in case of multicore scanario for this platform.
 504          * So we prefetch the annoation beforehand, so that it is available
 505          * in cache when accessed.
 506          */
 507         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 508
 509         *bufs = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 510 }
 511
 512 static uint16_t
 513 dpaa_eth_queue_portal_rx(struct qman_fq *fq,
 514                          struct rte_mbuf **bufs,
 515                          uint16_t nb_bufs)
 516 {
 517         int ret;
 518
 519         if (unlikely(fq->qp == NULL)) {
 520                 ret = rte_dpaa_portal_fq_init((void *)0, fq);
 521                 if (ret) {
 522                         DPAA_PMD_ERR("Failure in affining portal %d", ret);
 523                         return 0;
 524                 }
 525         }
 526
 527         return qman_portal_poll_rx(nb_bufs, (void **)bufs, fq->qp);
 528 }
 529
 530 enum qman_cb_dqrr_result
 531 dpaa_rx_cb_parallel(void *event,
 532                     struct qman_portal *qm __always_unused,
 533                     struct qman_fq *fq,
 534                     const struct qm_dqrr_entry *dqrr,
 535                     void **bufs)
 536 {
 537         u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 538         struct rte_mbuf *mbuf;
 539         struct rte_event *ev = (struct rte_event *)event;
 540
 541         mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
 542         ev->event_ptr = (void *)mbuf;
 543         ev->flow_id = fq->ev.flow_id;
 544         ev->sub_event_type = fq->ev.sub_event_type;
 545         ev->event_type = RTE_EVENT_TYPE_ETHDEV;
 546         ev->op = RTE_EVENT_OP_NEW;
 547         ev->sched_type = fq->ev.sched_type;
 548         ev->queue_id = fq->ev.queue_id;
 549         ev->priority = fq->ev.priority;
 550         ev->impl_opaque = (uint8_t)DPAA_INVALID_MBUF_SEQN;
 551         mbuf->seqn = DPAA_INVALID_MBUF_SEQN;
 552         *bufs = mbuf;
 553
 554         return qman_cb_dqrr_consume;
 555 }
 556
 557 enum qman_cb_dqrr_result
 558 dpaa_rx_cb_atomic(void *event,
 559                   struct qman_portal *qm __always_unused,
 560                   struct qman_fq *fq,
 561                   const struct qm_dqrr_entry *dqrr,
 562                   void **bufs)
 563 {
 564         u8 index;
 565         u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 566         struct rte_mbuf *mbuf;
 567         struct rte_event *ev = (struct rte_event *)event;
 568
 569         mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
 570         ev->event_ptr = (void *)mbuf;
 571         ev->flow_id = fq->ev.flow_id;
 572         ev->sub_event_type = fq->ev.sub_event_type;
 573         ev->event_type = RTE_EVENT_TYPE_ETHDEV;
 574         ev->op = RTE_EVENT_OP_NEW;
 575         ev->sched_type = fq->ev.sched_type;
 576         ev->queue_id = fq->ev.queue_id;
 577         ev->priority = fq->ev.priority;
 578
 579         /* Save active dqrr entries */
 580         index = DQRR_PTR2IDX(dqrr);
 581         DPAA_PER_LCORE_DQRR_SIZE++;
 582         DPAA_PER_LCORE_DQRR_HELD |= 1 << index;
 583         DPAA_PER_LCORE_DQRR_MBUF(index) = mbuf;
 584         ev->impl_opaque = index + 1;
 585         mbuf->seqn = (uint32_t)index + 1;
 586         *bufs = mbuf;
 587
 588         return qman_cb_dqrr_defer;
 589 }
 590
 591 uint16_t dpaa_eth_queue_rx(void *q,
 592                            struct rte_mbuf **bufs,
 593                            uint16_t nb_bufs)
 594 {
 595         struct qman_fq *fq = q;
 596         struct qm_dqrr_entry *dq;
 597         uint32_t num_rx = 0, ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 598         int num_rx_bufs, ret;
 599         uint32_t vdqcr_flags = 0;
 600
 601         if (unlikely(rte_dpaa_bpid_info == NULL &&
 602                                 rte_eal_process_type() == RTE_PROC_SECONDARY))
 603                 rte_dpaa_bpid_info = fq->bp_array;
 604
 605         if (likely(fq->is_static))
 606                 return dpaa_eth_queue_portal_rx(fq, bufs, nb_bufs);
 607
 608         if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
 609                 ret = rte_dpaa_portal_init((void *)0);
 610                 if (ret) {
 611                         DPAA_PMD_ERR("Failure in affining portal");
 612                         return 0;
 613                 }
 614         }
 615
 616         /* Until request for four buffers, we provide exact number of buffers.
 617          * Otherwise we do not set the QM_VDQCR_EXACT flag.
 618          * Not setting QM_VDQCR_EXACT flag can provide two more buffers than
 619          * requested, so we request two less in this case.
 620          */
 621         if (nb_bufs < 4) {
 622                 vdqcr_flags = QM_VDQCR_EXACT;
 623                 num_rx_bufs = nb_bufs;
 624         } else {
 625                 num_rx_bufs = nb_bufs > DPAA_MAX_DEQUEUE_NUM_FRAMES ?
 626                         (DPAA_MAX_DEQUEUE_NUM_FRAMES - 2) : (nb_bufs - 2);
 627         }
 628         ret = qman_set_vdq(fq, num_rx_bufs, vdqcr_flags);
 629         if (ret)
 630                 return 0;
 631
 632         do {
 633                 dq = qman_dequeue(fq);
 634                 if (!dq)
 635                         continue;
 636                 bufs[num_rx++] = dpaa_eth_fd_to_mbuf(&dq->fd, ifid);
 637                 qman_dqrr_consume(fq, dq);
 638         } while (fq->flags & QMAN_FQ_STATE_VDQCR);
 639
 640         return num_rx;
 641 }
 642
 643 static void *dpaa_get_pktbuf(struct dpaa_bp_info *bp_info)
 644 {
 645         int ret;
 646         size_t buf = 0;
 647         struct bm_buffer bufs;
 648
 649         ret = bman_acquire(bp_info->bp, &bufs, 1, 0);
 650         if (ret <= 0) {
 651                 DPAA_PMD_WARN("Failed to allocate buffers %d", ret);
 652                 return (void *)buf;
 653         }
 654
 655         DPAA_DP_LOG(DEBUG, "got buffer 0x%" PRIx64 " from pool %d",
 656                     (uint64_t)bufs.addr, bufs.bpid);
 657
 658         buf = (size_t)DPAA_MEMPOOL_PTOV(bp_info, bufs.addr)
 659                                 - bp_info->meta_data_size;
 660         if (!buf)
 661                 goto out;
 662
 663 out:
 664         return (void *)buf;
 665 }
 666
 667 static struct rte_mbuf *dpaa_get_dmable_mbuf(struct rte_mbuf *mbuf,
 668                                              struct dpaa_if *dpaa_intf)
 669 {
 670         struct rte_mbuf *dpaa_mbuf;
 671
 672         /* allocate pktbuffer on bpid for dpaa port */
 673         dpaa_mbuf = dpaa_get_pktbuf(dpaa_intf->bp_info);
 674         if (!dpaa_mbuf)
 675                 return NULL;
 676
 677         memcpy((uint8_t *)(dpaa_mbuf->buf_addr) + RTE_PKTMBUF_HEADROOM, (void *)
 678                 ((uint8_t *)(mbuf->buf_addr) + mbuf->data_off), mbuf->pkt_len);
 679
 680         /* Copy only the required fields */
 681         dpaa_mbuf->data_off = RTE_PKTMBUF_HEADROOM;
 682         dpaa_mbuf->pkt_len = mbuf->pkt_len;
 683         dpaa_mbuf->ol_flags = mbuf->ol_flags;
 684         dpaa_mbuf->packet_type = mbuf->packet_type;
 685         dpaa_mbuf->tx_offload = mbuf->tx_offload;
 686         rte_pktmbuf_free(mbuf);
 687         return dpaa_mbuf;
 688 }
 689
 690 int
 691 dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
 692                 struct qm_fd *fd,
 693                 uint32_t bpid)
 694 {
 695         struct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL;
 696         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(bpid);
 697         struct rte_mbuf *temp, *mi;
 698         struct qm_sg_entry *sg_temp, *sgt;
 699         int i = 0;
 700
 701         DPAA_DP_LOG(DEBUG, "Creating SG FD to transmit");
 702
 703         temp = rte_pktmbuf_alloc(bp_info->mp);
 704         if (!temp) {
 705                 DPAA_PMD_ERR("Failure in allocation of mbuf");
 706                 return -1;
 707         }
 708         if (temp->buf_len < ((mbuf->nb_segs * sizeof(struct qm_sg_entry))
 709                                 + temp->data_off)) {
 710                 DPAA_PMD_ERR("Insufficient space in mbuf for SG entries");
 711                 return -1;
 712         }
 713
 714         fd->cmd = 0;
 715         fd->opaque_addr = 0;
 716
 717         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) {
 718                 if (!mbuf->packet_type) {
 719                         struct rte_net_hdr_lens hdr_lens;
 720
 721                         mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens,
 722                                         RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK
 723                                         | RTE_PTYPE_L4_MASK);
 724                         mbuf->l2_len = hdr_lens.l2_len;
 725                         mbuf->l3_len = hdr_lens.l3_len;
 726                 }
 727                 if (temp->data_off < DEFAULT_TX_ICEOF
 728                         + sizeof(struct dpaa_eth_parse_results_t))
 729                         temp->data_off = DEFAULT_TX_ICEOF
 730                                 + sizeof(struct dpaa_eth_parse_results_t);
 731                 dcbz_64(temp->buf_addr);
 732                 dpaa_checksum_offload(mbuf, fd, temp->buf_addr);
 733         }
 734
 735         sgt = temp->buf_addr + temp->data_off;
 736         fd->format = QM_FD_SG;
 737         fd->addr = temp->buf_iova;
 738         fd->offset = temp->data_off;
 739         fd->bpid = bpid;
 740         fd->length20 = mbuf->pkt_len;
 741
 742         while (i < DPAA_SGT_MAX_ENTRIES) {
 743                 sg_temp = &sgt[i++];
 744                 sg_temp->opaque = 0;
 745                 sg_temp->val = 0;
 746                 sg_temp->addr = cur_seg->buf_iova;
 747                 sg_temp->offset = cur_seg->data_off;
 748                 sg_temp->length = cur_seg->data_len;
 749                 if (RTE_MBUF_DIRECT(cur_seg)) {
 750                         if (rte_mbuf_refcnt_read(cur_seg) > 1) {
 751                                 /*If refcnt > 1, invalid bpid is set to ensure
 752                                  * buffer is not freed by HW.
 753                                  */
 754                                 sg_temp->bpid = 0xff;
 755                                 rte_mbuf_refcnt_update(cur_seg, -1);
 756                         } else {
 757                                 sg_temp->bpid =
 758                                         DPAA_MEMPOOL_TO_BPID(cur_seg->pool);
 759                         }
 760                         cur_seg = cur_seg->next;
 761                 } else {
 762                         /* Get owner MBUF from indirect buffer */
 763                         mi = rte_mbuf_from_indirect(cur_seg);
 764                         if (rte_mbuf_refcnt_read(mi) > 1) {
 765                                 /*If refcnt > 1, invalid bpid is set to ensure
 766                                  * owner buffer is not freed by HW.
 767                                  */
 768                                 sg_temp->bpid = 0xff;
 769                         } else {
 770                                 sg_temp->bpid = DPAA_MEMPOOL_TO_BPID(mi->pool);
 771                                 rte_mbuf_refcnt_update(mi, 1);
 772                         }
 773                         prev_seg = cur_seg;
 774                         cur_seg = cur_seg->next;
 775                         prev_seg->next = NULL;
 776                         rte_pktmbuf_free(prev_seg);
 777                 }
 778                 if (cur_seg == NULL) {
 779                         sg_temp->final = 1;
 780                         cpu_to_hw_sg(sg_temp);
 781                         break;
 782                 }
 783                 cpu_to_hw_sg(sg_temp);
 784         }
 785         return 0;
 786 }
 787
 788 /* Handle mbufs which are not segmented (non SG) */
 789 static inline void
 790 tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf,
 791                             struct dpaa_bp_info *bp_info,
 792                             struct qm_fd *fd_arr)
 793 {
 794         struct rte_mbuf *mi = NULL;
 795
 796         if (RTE_MBUF_DIRECT(mbuf)) {
 797                 if (rte_mbuf_refcnt_read(mbuf) > 1) {
 798                         /* In case of direct mbuf and mbuf being cloned,
 799                          * BMAN should _not_ release buffer.
 800                          */
 801                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
 802                         /* Buffer should be releasd by EAL */
 803                         rte_mbuf_refcnt_update(mbuf, -1);
 804                 } else {
 805                         /* In case of direct mbuf and no cloning, mbuf can be
 806                          * released by BMAN.
 807                          */
 808                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
 809                 }
 810         } else {
 811                 /* This is data-containing core mbuf: 'mi' */
 812                 mi = rte_mbuf_from_indirect(mbuf);
 813                 if (rte_mbuf_refcnt_read(mi) > 1) {
 814                         /* In case of indirect mbuf, and mbuf being cloned,
 815                          * BMAN should _not_ release it and let EAL release
 816                          * it through pktmbuf_free below.
 817                          */
 818                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
 819                 } else {
 820                         /* In case of indirect mbuf, and no cloning, core mbuf
 821                          * should be released by BMAN.
 822                          * Increate refcnt of core mbuf so that when
 823                          * pktmbuf_free is called and mbuf is released, EAL
 824                          * doesn't try to release core mbuf which would have
 825                          * been released by BMAN.
 826                          */
 827                         rte_mbuf_refcnt_update(mi, 1);
 828                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
 829                 }
 830                 rte_pktmbuf_free(mbuf);
 831         }
 832
 833         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK)
 834                 dpaa_unsegmented_checksum(mbuf, fd_arr);
 835 }
 836
 837 /* Handle all mbufs on dpaa BMAN managed pool */
 838 static inline uint16_t
 839 tx_on_dpaa_pool(struct rte_mbuf *mbuf,
 840                 struct dpaa_bp_info *bp_info,
 841                 struct qm_fd *fd_arr)
 842 {
 843         DPAA_DP_LOG(DEBUG, "BMAN offloaded buffer, mbuf: %p", mbuf);
 844
 845         if (mbuf->nb_segs == 1) {
 846                 /* Case for non-segmented buffers */
 847                 tx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr);
 848         } else if (mbuf->nb_segs > 1 &&
 849                    mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) {
 850                 if (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info->bpid)) {
 851                         DPAA_PMD_DEBUG("Unable to create Scatter Gather FD");
 852                         return 1;
 853                 }
 854         } else {
 855                 DPAA_PMD_DEBUG("Number of Segments not supported");
 856                 return 1;
 857         }
 858
 859         return 0;
 860 }
 861
 862 /* Handle all mbufs on an external pool (non-dpaa) */
 863 static inline uint16_t
 864 tx_on_external_pool(struct qman_fq *txq, struct rte_mbuf *mbuf,
 865                     struct qm_fd *fd_arr)
 866 {
 867         struct dpaa_if *dpaa_intf = txq->dpaa_intf;
 868         struct rte_mbuf *dmable_mbuf;
 869
 870         DPAA_DP_LOG(DEBUG, "Non-BMAN offloaded buffer."
 871                     "Allocating an offloaded buffer");
 872         dmable_mbuf = dpaa_get_dmable_mbuf(mbuf, dpaa_intf);
 873         if (!dmable_mbuf) {
 874                 DPAA_DP_LOG(DEBUG, "no dpaa buffers.");
 875                 return 1;
 876         }
 877
 878         DPAA_MBUF_TO_CONTIG_FD(dmable_mbuf, fd_arr, dpaa_intf->bp_info->bpid);
 879         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK)
 880                 dpaa_unsegmented_checksum(mbuf, fd_arr);
 881
 882         return 0;
 883 }
 884
 885 uint16_t
 886 dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
 887 {
 888         struct rte_mbuf *mbuf, *mi = NULL;
 889         struct rte_mempool *mp;
 890         struct dpaa_bp_info *bp_info;
 891         struct qm_fd fd_arr[DPAA_TX_BURST_SIZE];
 892         uint32_t frames_to_send, loop, sent = 0;
 893         uint16_t state;
 894         int ret;
 895         uint32_t seqn, index, flags[DPAA_TX_BURST_SIZE] = {0};
 896
 897         if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
 898                 ret = rte_dpaa_portal_init((void *)0);
 899                 if (ret) {
 900                         DPAA_PMD_ERR("Failure in affining portal");
 901                         return 0;
 902                 }
 903         }
 904
 905         DPAA_DP_LOG(DEBUG, "Transmitting %d buffers on queue: %p", nb_bufs, q);
 906
 907         while (nb_bufs) {
 908                 frames_to_send = (nb_bufs > DPAA_TX_BURST_SIZE) ?
 909                                 DPAA_TX_BURST_SIZE : nb_bufs;
 910                 for (loop = 0; loop < frames_to_send; loop++) {
 911                         mbuf = *(bufs++);
 912                         seqn = mbuf->seqn;
 913                         if (seqn != DPAA_INVALID_MBUF_SEQN) {
 914                                 index = seqn - 1;
 915                                 if (DPAA_PER_LCORE_DQRR_HELD & (1 << index)) {
 916                                         flags[loop] =
 917                                            ((index & QM_EQCR_DCA_IDXMASK) << 8);
 918                                         flags[loop] |= QMAN_ENQUEUE_FLAG_DCA;
 919                                         DPAA_PER_LCORE_DQRR_SIZE--;
 920                                         DPAA_PER_LCORE_DQRR_HELD &=
 921                                                                 ~(1 << index);
 922                                 }
 923                         }
 924
 925                         if (likely(RTE_MBUF_DIRECT(mbuf))) {
 926                                 mp = mbuf->pool;
 927                                 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
 928                                 if (likely(mp->ops_index ==
 929                                                 bp_info->dpaa_ops_index &&
 930                                         mbuf->nb_segs == 1 &&
 931                                         rte_mbuf_refcnt_read(mbuf) == 1)) {
 932                                         DPAA_MBUF_TO_CONTIG_FD(mbuf,
 933                                                 &fd_arr[loop], bp_info->bpid);
 934                                         if (mbuf->ol_flags &
 935                                                 DPAA_TX_CKSUM_OFFLOAD_MASK)
 936                                                 dpaa_unsegmented_checksum(mbuf,
 937                                                         &fd_arr[loop]);
 938                                         continue;
 939                                 }
 940                         } else {
 941                                 mi = rte_mbuf_from_indirect(mbuf);
 942                                 mp = mi->pool;
 943                         }
 944
 945                         bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
 946                         if (likely(mp->ops_index == bp_info->dpaa_ops_index)) {
 947                                 state = tx_on_dpaa_pool(mbuf, bp_info,
 948                                                         &fd_arr[loop]);
 949                                 if (unlikely(state)) {
 950                                         /* Set frames_to_send & nb_bufs so
 951                                          * that packets are transmitted till
 952                                          * previous frame.
 953                                          */
 954                                         frames_to_send = loop;
 955                                         nb_bufs = loop;
 956                                         goto send_pkts;
 957                                 }
 958                         } else {
 959                                 state = tx_on_external_pool(q, mbuf,
 960                                                             &fd_arr[loop]);
 961                                 if (unlikely(state)) {
 962                                         /* Set frames_to_send & nb_bufs so
 963                                          * that packets are transmitted till
 964                                          * previous frame.
 965                                          */
 966                                         frames_to_send = loop;
 967                                         nb_bufs = loop;
 968                                         goto send_pkts;
 969                                 }
 970                         }
 971                 }
 972
 973 send_pkts:
 974                 loop = 0;
 975                 while (loop < frames_to_send) {
 976                         loop += qman_enqueue_multi(q, &fd_arr[loop],
 977                                                    &flags[loop],
 978                                                    frames_to_send - loop);
 979                 }
 980                 nb_bufs -= frames_to_send;
 981                 sent += frames_to_send;
 982         }
 983
 984         DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", sent, q);
 985
 986         return sent;
 987 }
 988
 989 uint16_t dpaa_eth_tx_drop_all(void *q  __rte_unused,
 990                               struct rte_mbuf **bufs __rte_unused,
 991                 uint16_t nb_bufs __rte_unused)
 992 {
 993         DPAA_DP_LOG(DEBUG, "Drop all packets");
 994
 995         /* Drop all incoming packets. No need to free packets here
 996          * because the rte_eth f/w frees up the packets through tx_buffer
 997          * callback in case this functions returns count less than nb_bufs
 998          */
 999         return 0;
1000 }