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 <dpaa_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 #ifdef RTE_LIBRTE_DPAA_DEBUG_DRIVER
  62 #define DISPLAY_PRINT printf
  63 static void dpaa_display_frame_info(const struct qm_fd *fd,
  64                         uint32_t fqid, bool rx)
  65 {
  66         int ii;
  67         char *ptr;
  68         struct annotations_t *annot = rte_dpaa_mem_ptov(fd->addr);
  69         uint8_t format;
  70
  71         if (!fd->status) {
  72                 /* Do not display correct packets.*/
  73                 return;
  74         }
  75
  76         format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
  77                                 DPAA_FD_FORMAT_SHIFT;
  78
  79         DISPLAY_PRINT("fqid %d bpid %d addr 0x%lx, format %d\r\n",
  80                       fqid, fd->bpid, (unsigned long)fd->addr, fd->format);
  81         DISPLAY_PRINT("off %d, len %d stat 0x%x\r\n",
  82                       fd->offset, fd->length20, fd->status);
  83         if (rx) {
  84                 ptr = (char *)&annot->parse;
  85                 DISPLAY_PRINT("RX parser result:\r\n");
  86                 for (ii = 0; ii < (int)sizeof(struct dpaa_eth_parse_results_t);
  87                         ii++) {
  88                         DISPLAY_PRINT("%02x ", ptr[ii]);
  89                         if (((ii + 1) % 16) == 0)
  90                                 DISPLAY_PRINT("\n");
  91                 }
  92                 DISPLAY_PRINT("\n");
  93         }
  94
  95         if (unlikely(format == qm_fd_sg)) {
  96                 /*TBD:S/G display: to be implemented*/
  97                 return;
  98         }
  99
 100         DISPLAY_PRINT("Frame payload:\r\n");
 101         ptr = (char *)annot;
 102         ptr += fd->offset;
 103         for (ii = 0; ii < fd->length20; ii++) {
 104                 DISPLAY_PRINT("%02x ", ptr[ii]);
 105                 if (((ii + 1) % 16) == 0)
 106                         printf("\n");
 107         }
 108         DISPLAY_PRINT("\n");
 109 }
 110 #else
 111 #define dpaa_display_frame_info(a, b, c)
 112 #endif
 113
 114 static inline void dpaa_slow_parsing(struct rte_mbuf *m __rte_unused,
 115                                      uint64_t prs __rte_unused)
 116 {
 117         DPAA_DP_LOG(DEBUG, "Slow parsing");
 118         /*TBD:XXX: to be implemented*/
 119 }
 120
 121 static inline void dpaa_eth_packet_info(struct rte_mbuf *m, void *fd_virt_addr)
 122 {
 123         struct annotations_t *annot = GET_ANNOTATIONS(fd_virt_addr);
 124         uint64_t prs = *((uintptr_t *)(&annot->parse)) & DPAA_PARSE_MASK;
 125
 126         DPAA_DP_LOG(DEBUG, " Parsing mbuf: %p with annotations: %p", m, annot);
 127
 128         switch (prs) {
 129         case DPAA_PKT_TYPE_IPV4:
 130                 m->packet_type = RTE_PTYPE_L2_ETHER |
 131                         RTE_PTYPE_L3_IPV4;
 132                 break;
 133         case DPAA_PKT_TYPE_IPV6:
 134                 m->packet_type = RTE_PTYPE_L2_ETHER |
 135                         RTE_PTYPE_L3_IPV6;
 136                 break;
 137         case DPAA_PKT_TYPE_ETHER:
 138                 m->packet_type = RTE_PTYPE_L2_ETHER;
 139                 break;
 140         case DPAA_PKT_TYPE_IPV4_FRAG:
 141         case DPAA_PKT_TYPE_IPV4_FRAG_UDP:
 142         case DPAA_PKT_TYPE_IPV4_FRAG_TCP:
 143         case DPAA_PKT_TYPE_IPV4_FRAG_SCTP:
 144                 m->packet_type = RTE_PTYPE_L2_ETHER |
 145                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_FRAG;
 146                 break;
 147         case DPAA_PKT_TYPE_IPV6_FRAG:
 148         case DPAA_PKT_TYPE_IPV6_FRAG_UDP:
 149         case DPAA_PKT_TYPE_IPV6_FRAG_TCP:
 150         case DPAA_PKT_TYPE_IPV6_FRAG_SCTP:
 151                 m->packet_type = RTE_PTYPE_L2_ETHER |
 152                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_FRAG;
 153                 break;
 154         case DPAA_PKT_TYPE_IPV4_EXT:
 155                 m->packet_type = RTE_PTYPE_L2_ETHER |
 156                         RTE_PTYPE_L3_IPV4_EXT;
 157                 break;
 158         case DPAA_PKT_TYPE_IPV6_EXT:
 159                 m->packet_type = RTE_PTYPE_L2_ETHER |
 160                         RTE_PTYPE_L3_IPV6_EXT;
 161                 break;
 162         case DPAA_PKT_TYPE_IPV4_TCP:
 163                 m->packet_type = RTE_PTYPE_L2_ETHER |
 164                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_TCP;
 165                 break;
 166         case DPAA_PKT_TYPE_IPV6_TCP:
 167                 m->packet_type = RTE_PTYPE_L2_ETHER |
 168                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP;
 169                 break;
 170         case DPAA_PKT_TYPE_IPV4_UDP:
 171                 m->packet_type = RTE_PTYPE_L2_ETHER |
 172                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_UDP;
 173                 break;
 174         case DPAA_PKT_TYPE_IPV6_UDP:
 175                 m->packet_type = RTE_PTYPE_L2_ETHER |
 176                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP;
 177                 break;
 178         case DPAA_PKT_TYPE_IPV4_EXT_UDP:
 179                 m->packet_type = RTE_PTYPE_L2_ETHER |
 180                         RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_UDP;
 181                 break;
 182         case DPAA_PKT_TYPE_IPV6_EXT_UDP:
 183                 m->packet_type = RTE_PTYPE_L2_ETHER |
 184                         RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_UDP;
 185                 break;
 186         case DPAA_PKT_TYPE_IPV4_EXT_TCP:
 187                 m->packet_type = RTE_PTYPE_L2_ETHER |
 188                         RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_TCP;
 189                 break;
 190         case DPAA_PKT_TYPE_IPV6_EXT_TCP:
 191                 m->packet_type = RTE_PTYPE_L2_ETHER |
 192                         RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_TCP;
 193                 break;
 194         case DPAA_PKT_TYPE_IPV4_SCTP:
 195                 m->packet_type = RTE_PTYPE_L2_ETHER |
 196                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_SCTP;
 197                 break;
 198         case DPAA_PKT_TYPE_IPV6_SCTP:
 199                 m->packet_type = RTE_PTYPE_L2_ETHER |
 200                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_SCTP;
 201                 break;
 202         case DPAA_PKT_TYPE_NONE:
 203                 m->packet_type = 0;
 204                 break;
 205         /* More switch cases can be added */
 206         default:
 207                 dpaa_slow_parsing(m, prs);
 208         }
 209
 210         m->tx_offload = annot->parse.ip_off[0];
 211         m->tx_offload |= (annot->parse.l4_off - annot->parse.ip_off[0])
 212                                         << DPAA_PKT_L3_LEN_SHIFT;
 213
 214         /* Set the hash values */
 215         m->hash.rss = (uint32_t)(annot->hash);
 216         /* All packets with Bad checksum are dropped by interface (and
 217          * corresponding notification issued to RX error queues).
 218          */
 219         m->ol_flags = PKT_RX_RSS_HASH | PKT_RX_IP_CKSUM_GOOD;
 220
 221         /* Check if Vlan is present */
 222         if (prs & DPAA_PARSE_VLAN_MASK)
 223                 m->ol_flags |= PKT_RX_VLAN;
 224         /* Packet received without stripping the vlan */
 225 }
 226
 227 static inline void dpaa_checksum(struct rte_mbuf *mbuf)
 228 {
 229         struct rte_ether_hdr *eth_hdr =
 230                 rte_pktmbuf_mtod(mbuf, struct rte_ether_hdr *);
 231         char *l3_hdr = (char *)eth_hdr + mbuf->l2_len;
 232         struct rte_ipv4_hdr *ipv4_hdr = (struct rte_ipv4_hdr *)l3_hdr;
 233         struct rte_ipv6_hdr *ipv6_hdr = (struct rte_ipv6_hdr *)l3_hdr;
 234
 235         DPAA_DP_LOG(DEBUG, "Calculating checksum for mbuf: %p", mbuf);
 236
 237         if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) ||
 238             ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 239             RTE_PTYPE_L3_IPV4_EXT)) {
 240                 ipv4_hdr = (struct rte_ipv4_hdr *)l3_hdr;
 241                 ipv4_hdr->hdr_checksum = 0;
 242                 ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr);
 243         } else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 244                    RTE_PTYPE_L3_IPV6) ||
 245                    ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 246                    RTE_PTYPE_L3_IPV6_EXT))
 247                 ipv6_hdr = (struct rte_ipv6_hdr *)l3_hdr;
 248
 249         if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) {
 250                 struct rte_tcp_hdr *tcp_hdr = (struct rte_tcp_hdr *)(l3_hdr +
 251                                           mbuf->l3_len);
 252                 tcp_hdr->cksum = 0;
 253                 if (eth_hdr->ether_type == htons(RTE_ETHER_TYPE_IPV4))
 254                         tcp_hdr->cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
 255                                                                tcp_hdr);
 256                 else /* assume ethertype == RTE_ETHER_TYPE_IPV6 */
 257                         tcp_hdr->cksum = rte_ipv6_udptcp_cksum(ipv6_hdr,
 258                                                                tcp_hdr);
 259         } else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) ==
 260                    RTE_PTYPE_L4_UDP) {
 261                 struct rte_udp_hdr *udp_hdr = (struct rte_udp_hdr *)(l3_hdr +
 262                                                              mbuf->l3_len);
 263                 udp_hdr->dgram_cksum = 0;
 264                 if (eth_hdr->ether_type == htons(RTE_ETHER_TYPE_IPV4))
 265                         udp_hdr->dgram_cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
 266                                                                      udp_hdr);
 267                 else /* assume ethertype == RTE_ETHER_TYPE_IPV6 */
 268                         udp_hdr->dgram_cksum = rte_ipv6_udptcp_cksum(ipv6_hdr,
 269                                                                      udp_hdr);
 270         }
 271 }
 272
 273 static inline void dpaa_checksum_offload(struct rte_mbuf *mbuf,
 274                                          struct qm_fd *fd, char *prs_buf)
 275 {
 276         struct dpaa_eth_parse_results_t *prs;
 277
 278         DPAA_DP_LOG(DEBUG, " Offloading checksum for mbuf: %p", mbuf);
 279
 280         prs = GET_TX_PRS(prs_buf);
 281         prs->l3r = 0;
 282         prs->l4r = 0;
 283         if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) ||
 284            ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 285            RTE_PTYPE_L3_IPV4_EXT))
 286                 prs->l3r = DPAA_L3_PARSE_RESULT_IPV4;
 287         else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 288                    RTE_PTYPE_L3_IPV6) ||
 289                  ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 290                 RTE_PTYPE_L3_IPV6_EXT))
 291                 prs->l3r = DPAA_L3_PARSE_RESULT_IPV6;
 292
 293         if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP)
 294                 prs->l4r = DPAA_L4_PARSE_RESULT_TCP;
 295         else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_UDP)
 296                 prs->l4r = DPAA_L4_PARSE_RESULT_UDP;
 297
 298         prs->ip_off[0] = mbuf->l2_len;
 299         prs->l4_off = mbuf->l3_len + mbuf->l2_len;
 300         /* Enable L3 (and L4, if TCP or UDP) HW checksum*/
 301         fd->cmd = DPAA_FD_CMD_RPD | DPAA_FD_CMD_DTC;
 302 }
 303
 304 static inline void
 305 dpaa_unsegmented_checksum(struct rte_mbuf *mbuf, struct qm_fd *fd_arr)
 306 {
 307         if (!mbuf->packet_type) {
 308                 struct rte_net_hdr_lens hdr_lens;
 309
 310                 mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens,
 311                                 RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK
 312                                 | RTE_PTYPE_L4_MASK);
 313                 mbuf->l2_len = hdr_lens.l2_len;
 314                 mbuf->l3_len = hdr_lens.l3_len;
 315         }
 316         if (mbuf->data_off < (DEFAULT_TX_ICEOF +
 317             sizeof(struct dpaa_eth_parse_results_t))) {
 318                 DPAA_DP_LOG(DEBUG, "Checksum offload Err: "
 319                         "Not enough Headroom "
 320                         "space for correct Checksum offload."
 321                         "So Calculating checksum in Software.");
 322                 dpaa_checksum(mbuf);
 323         } else {
 324                 dpaa_checksum_offload(mbuf, fd_arr, mbuf->buf_addr);
 325         }
 326 }
 327
 328 struct rte_mbuf *
 329 dpaa_eth_sg_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
 330 {
 331         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
 332         struct rte_mbuf *first_seg, *prev_seg, *cur_seg, *temp;
 333         struct qm_sg_entry *sgt, *sg_temp;
 334         void *vaddr, *sg_vaddr;
 335         int i = 0;
 336         uint16_t fd_offset = fd->offset;
 337
 338         vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 339         if (!vaddr) {
 340                 DPAA_PMD_ERR("unable to convert physical address");
 341                 return NULL;
 342         }
 343         sgt = vaddr + fd_offset;
 344         sg_temp = &sgt[i++];
 345         hw_sg_to_cpu(sg_temp);
 346         temp = (struct rte_mbuf *)((char *)vaddr - bp_info->meta_data_size);
 347         sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_sg_entry_get64(sg_temp));
 348
 349         first_seg = (struct rte_mbuf *)((char *)sg_vaddr -
 350                                                 bp_info->meta_data_size);
 351         first_seg->data_off = sg_temp->offset;
 352         first_seg->data_len = sg_temp->length;
 353         first_seg->pkt_len = sg_temp->length;
 354         rte_mbuf_refcnt_set(first_seg, 1);
 355
 356         first_seg->port = ifid;
 357         first_seg->nb_segs = 1;
 358         first_seg->ol_flags = 0;
 359         prev_seg = first_seg;
 360         while (i < DPAA_SGT_MAX_ENTRIES) {
 361                 sg_temp = &sgt[i++];
 362                 hw_sg_to_cpu(sg_temp);
 363                 sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info,
 364                                              qm_sg_entry_get64(sg_temp));
 365                 cur_seg = (struct rte_mbuf *)((char *)sg_vaddr -
 366                                                       bp_info->meta_data_size);
 367                 cur_seg->data_off = sg_temp->offset;
 368                 cur_seg->data_len = sg_temp->length;
 369                 first_seg->pkt_len += sg_temp->length;
 370                 first_seg->nb_segs += 1;
 371                 rte_mbuf_refcnt_set(cur_seg, 1);
 372                 prev_seg->next = cur_seg;
 373                 if (sg_temp->final) {
 374                         cur_seg->next = NULL;
 375                         break;
 376                 }
 377                 prev_seg = cur_seg;
 378         }
 379         DPAA_DP_LOG(DEBUG, "Received an SG frame len =%d, num_sg =%d",
 380                         first_seg->pkt_len, first_seg->nb_segs);
 381
 382         dpaa_eth_packet_info(first_seg, vaddr);
 383         rte_pktmbuf_free_seg(temp);
 384
 385         return first_seg;
 386 }
 387
 388 static inline struct rte_mbuf *
 389 dpaa_eth_fd_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
 390 {
 391         struct rte_mbuf *mbuf;
 392         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
 393         void *ptr;
 394         uint8_t format =
 395                 (fd->opaque & DPAA_FD_FORMAT_MASK) >> DPAA_FD_FORMAT_SHIFT;
 396         uint16_t offset;
 397         uint32_t length;
 398
 399         if (unlikely(format == qm_fd_sg))
 400                 return dpaa_eth_sg_to_mbuf(fd, ifid);
 401
 402         offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT;
 403         length = fd->opaque & DPAA_FD_LENGTH_MASK;
 404
 405         DPAA_DP_LOG(DEBUG, " FD--->MBUF off %d len = %d", offset, length);
 406
 407         /* Ignoring case when format != qm_fd_contig */
 408         ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 409
 410         mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 411         /* Prefetch the Parse results and packet data to L1 */
 412         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 413
 414         mbuf->data_off = offset;
 415         mbuf->data_len = length;
 416         mbuf->pkt_len = length;
 417
 418         mbuf->port = ifid;
 419         mbuf->nb_segs = 1;
 420         mbuf->ol_flags = 0;
 421         mbuf->next = NULL;
 422         rte_mbuf_refcnt_set(mbuf, 1);
 423         dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
 424
 425         return mbuf;
 426 }
 427
 428 uint16_t
 429 dpaa_free_mbuf(const struct qm_fd *fd)
 430 {
 431         struct rte_mbuf *mbuf;
 432         struct dpaa_bp_info *bp_info;
 433         uint8_t format;
 434         void *ptr;
 435
 436         bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
 437         format = (fd->opaque & DPAA_FD_FORMAT_MASK) >> DPAA_FD_FORMAT_SHIFT;
 438         if (unlikely(format == qm_fd_sg)) {
 439                 struct rte_mbuf *first_seg, *prev_seg, *cur_seg, *temp;
 440                 struct qm_sg_entry *sgt, *sg_temp;
 441                 void *vaddr, *sg_vaddr;
 442                 int i = 0;
 443                 uint16_t fd_offset = fd->offset;
 444
 445                 vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 446                 if (!vaddr) {
 447                         DPAA_PMD_ERR("unable to convert physical address");
 448                         return -1;
 449                 }
 450                 sgt = vaddr + fd_offset;
 451                 sg_temp = &sgt[i++];
 452                 hw_sg_to_cpu(sg_temp);
 453                 temp = (struct rte_mbuf *)
 454                         ((char *)vaddr - bp_info->meta_data_size);
 455                 sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info,
 456                                                 qm_sg_entry_get64(sg_temp));
 457
 458                 first_seg = (struct rte_mbuf *)((char *)sg_vaddr -
 459                                                 bp_info->meta_data_size);
 460                 first_seg->nb_segs = 1;
 461                 prev_seg = first_seg;
 462                 while (i < DPAA_SGT_MAX_ENTRIES) {
 463                         sg_temp = &sgt[i++];
 464                         hw_sg_to_cpu(sg_temp);
 465                         sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info,
 466                                                 qm_sg_entry_get64(sg_temp));
 467                         cur_seg = (struct rte_mbuf *)((char *)sg_vaddr -
 468                                                       bp_info->meta_data_size);
 469                         first_seg->nb_segs += 1;
 470                         prev_seg->next = cur_seg;
 471                         if (sg_temp->final) {
 472                                 cur_seg->next = NULL;
 473                                 break;
 474                         }
 475                         prev_seg = cur_seg;
 476                 }
 477
 478                 rte_pktmbuf_free_seg(temp);
 479                 rte_pktmbuf_free_seg(first_seg);
 480                 return 0;
 481         }
 482
 483         ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 484         mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 485
 486         rte_pktmbuf_free(mbuf);
 487
 488         return 0;
 489 }
 490
 491 /* Specific for LS1043 */
 492 void
 493 dpaa_rx_cb_no_prefetch(struct qman_fq **fq, struct qm_dqrr_entry **dqrr,
 494            void **bufs, int num_bufs)
 495 {
 496         struct rte_mbuf *mbuf;
 497         struct dpaa_bp_info *bp_info;
 498         const struct qm_fd *fd;
 499         void *ptr;
 500         struct dpaa_if *dpaa_intf;
 501         uint16_t offset, i;
 502         uint32_t length;
 503         uint8_t format;
 504
 505         bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[0]->fd.bpid);
 506         ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[0]->fd));
 507         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 508         bufs[0] = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 509
 510         for (i = 0; i < num_bufs; i++) {
 511                 if (i < num_bufs - 1) {
 512                         bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[i + 1]->fd.bpid);
 513                         ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[i + 1]->fd));
 514                         rte_prefetch0((void *)((uint8_t *)ptr +
 515                                         DEFAULT_RX_ICEOF));
 516                         bufs[i + 1] = (struct rte_mbuf *)((char *)ptr -
 517                                         bp_info->meta_data_size);
 518                 }
 519
 520                 fd = &dqrr[i]->fd;
 521                 dpaa_intf = fq[0]->dpaa_intf;
 522                 format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
 523                                 DPAA_FD_FORMAT_SHIFT;
 524                 if (unlikely(format == qm_fd_sg)) {
 525                         bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid);
 526                         continue;
 527                 }
 528
 529                 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >>
 530                                 DPAA_FD_OFFSET_SHIFT;
 531                 length = fd->opaque & DPAA_FD_LENGTH_MASK;
 532
 533                 mbuf = bufs[i];
 534                 mbuf->data_off = offset;
 535                 mbuf->data_len = length;
 536                 mbuf->pkt_len = length;
 537                 mbuf->port = dpaa_intf->ifid;
 538
 539                 mbuf->nb_segs = 1;
 540                 mbuf->ol_flags = 0;
 541                 mbuf->next = NULL;
 542                 rte_mbuf_refcnt_set(mbuf, 1);
 543                 dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
 544                 dpaa_display_frame_info(fd, fq[0]->fqid, true);
 545         }
 546 }
 547
 548 void
 549 dpaa_rx_cb(struct qman_fq **fq, struct qm_dqrr_entry **dqrr,
 550            void **bufs, int num_bufs)
 551 {
 552         struct rte_mbuf *mbuf;
 553         const struct qm_fd *fd;
 554         struct dpaa_if *dpaa_intf;
 555         uint16_t offset, i;
 556         uint32_t length;
 557         uint8_t format;
 558
 559         for (i = 0; i < num_bufs; i++) {
 560                 fd = &dqrr[i]->fd;
 561                 dpaa_intf = fq[0]->dpaa_intf;
 562                 format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
 563                                 DPAA_FD_FORMAT_SHIFT;
 564                 if (unlikely(format == qm_fd_sg)) {
 565                         bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid);
 566                         continue;
 567                 }
 568
 569                 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >>
 570                                 DPAA_FD_OFFSET_SHIFT;
 571                 length = fd->opaque & DPAA_FD_LENGTH_MASK;
 572
 573                 mbuf = bufs[i];
 574                 mbuf->data_off = offset;
 575                 mbuf->data_len = length;
 576                 mbuf->pkt_len = length;
 577                 mbuf->port = dpaa_intf->ifid;
 578
 579                 mbuf->nb_segs = 1;
 580                 mbuf->ol_flags = 0;
 581                 mbuf->next = NULL;
 582                 rte_mbuf_refcnt_set(mbuf, 1);
 583                 dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
 584                 dpaa_display_frame_info(fd, fq[0]->fqid, true);
 585         }
 586 }
 587
 588 void dpaa_rx_cb_prepare(struct qm_dqrr_entry *dq, void **bufs)
 589 {
 590         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(dq->fd.bpid);
 591         void *ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dq->fd));
 592
 593         /* In case of LS1046, annotation stashing is disabled due to L2 cache
 594          * being bottleneck in case of multicore scanario for this platform.
 595          * So we prefetch the annoation beforehand, so that it is available
 596          * in cache when accessed.
 597          */
 598         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 599
 600         *bufs = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 601 }
 602
 603 static uint16_t
 604 dpaa_eth_queue_portal_rx(struct qman_fq *fq,
 605                          struct rte_mbuf **bufs,
 606                          uint16_t nb_bufs)
 607 {
 608         int ret;
 609
 610         if (unlikely(!fq->qp_initialized)) {
 611                 ret = rte_dpaa_portal_fq_init((void *)0, fq);
 612                 if (ret) {
 613                         DPAA_PMD_ERR("Failure in affining portal %d", ret);
 614                         return 0;
 615                 }
 616                 fq->qp_initialized = 1;
 617         }
 618
 619         return qman_portal_poll_rx(nb_bufs, (void **)bufs, fq->qp);
 620 }
 621
 622 enum qman_cb_dqrr_result
 623 dpaa_rx_cb_parallel(void *event,
 624                     struct qman_portal *qm __always_unused,
 625                     struct qman_fq *fq,
 626                     const struct qm_dqrr_entry *dqrr,
 627                     void **bufs)
 628 {
 629         u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 630         struct rte_mbuf *mbuf;
 631         struct rte_event *ev = (struct rte_event *)event;
 632
 633         mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
 634         ev->event_ptr = (void *)mbuf;
 635         ev->flow_id = fq->ev.flow_id;
 636         ev->sub_event_type = fq->ev.sub_event_type;
 637         ev->event_type = RTE_EVENT_TYPE_ETHDEV;
 638         ev->op = RTE_EVENT_OP_NEW;
 639         ev->sched_type = fq->ev.sched_type;
 640         ev->queue_id = fq->ev.queue_id;
 641         ev->priority = fq->ev.priority;
 642         ev->impl_opaque = (uint8_t)DPAA_INVALID_MBUF_SEQN;
 643         mbuf->seqn = DPAA_INVALID_MBUF_SEQN;
 644         *bufs = mbuf;
 645
 646         return qman_cb_dqrr_consume;
 647 }
 648
 649 enum qman_cb_dqrr_result
 650 dpaa_rx_cb_atomic(void *event,
 651                   struct qman_portal *qm __always_unused,
 652                   struct qman_fq *fq,
 653                   const struct qm_dqrr_entry *dqrr,
 654                   void **bufs)
 655 {
 656         u8 index;
 657         u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 658         struct rte_mbuf *mbuf;
 659         struct rte_event *ev = (struct rte_event *)event;
 660
 661         mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
 662         ev->event_ptr = (void *)mbuf;
 663         ev->flow_id = fq->ev.flow_id;
 664         ev->sub_event_type = fq->ev.sub_event_type;
 665         ev->event_type = RTE_EVENT_TYPE_ETHDEV;
 666         ev->op = RTE_EVENT_OP_NEW;
 667         ev->sched_type = fq->ev.sched_type;
 668         ev->queue_id = fq->ev.queue_id;
 669         ev->priority = fq->ev.priority;
 670
 671         /* Save active dqrr entries */
 672         index = DQRR_PTR2IDX(dqrr);
 673         DPAA_PER_LCORE_DQRR_SIZE++;
 674         DPAA_PER_LCORE_DQRR_HELD |= 1 << index;
 675         DPAA_PER_LCORE_DQRR_MBUF(index) = mbuf;
 676         ev->impl_opaque = index + 1;
 677         mbuf->seqn = (uint32_t)index + 1;
 678         *bufs = mbuf;
 679
 680         return qman_cb_dqrr_defer;
 681 }
 682
 683 #ifdef RTE_LIBRTE_DPAA_DEBUG_DRIVER
 684 static inline void dpaa_eth_err_queue(struct dpaa_if *dpaa_intf)
 685 {
 686         struct rte_mbuf *mbuf;
 687         struct qman_fq *debug_fq;
 688         int ret, i;
 689         struct qm_dqrr_entry *dq;
 690         struct qm_fd *fd;
 691
 692         if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
 693                 ret = rte_dpaa_portal_init((void *)0);
 694                 if (ret) {
 695                         DPAA_PMD_ERR("Failure in affining portal");
 696                         return;
 697                 }
 698         }
 699         for (i = 0; i <= DPAA_DEBUG_FQ_TX_ERROR; i++) {
 700                 debug_fq = &dpaa_intf->debug_queues[i];
 701                 ret = qman_set_vdq(debug_fq, 4, QM_VDQCR_EXACT);
 702                 if (ret)
 703                         return;
 704
 705                 do {
 706                         dq = qman_dequeue(debug_fq);
 707                         if (!dq)
 708                                 continue;
 709                         fd = &dq->fd;
 710                         if (i == DPAA_DEBUG_FQ_RX_ERROR)
 711                                 DPAA_PMD_ERR("RX ERROR status: 0x%08x",
 712                                         fd->status);
 713                         else
 714                                 DPAA_PMD_ERR("TX ERROR status: 0x%08x",
 715                                         fd->status);
 716                         dpaa_display_frame_info(fd, debug_fq->fqid,
 717                                 i == DPAA_DEBUG_FQ_RX_ERROR);
 718
 719                         mbuf = dpaa_eth_fd_to_mbuf(fd, dpaa_intf->ifid);
 720                         rte_pktmbuf_free(mbuf);
 721                         qman_dqrr_consume(debug_fq, dq);
 722                 } while (debug_fq->flags & QMAN_FQ_STATE_VDQCR);
 723         }
 724 }
 725 #endif
 726
 727 uint16_t dpaa_eth_queue_rx(void *q,
 728                            struct rte_mbuf **bufs,
 729                            uint16_t nb_bufs)
 730 {
 731         struct qman_fq *fq = q;
 732         struct qm_dqrr_entry *dq;
 733         uint32_t num_rx = 0, ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 734         int num_rx_bufs, ret;
 735         uint32_t vdqcr_flags = 0;
 736
 737         if (unlikely(rte_dpaa_bpid_info == NULL &&
 738                                 rte_eal_process_type() == RTE_PROC_SECONDARY))
 739                 rte_dpaa_bpid_info = fq->bp_array;
 740
 741 #ifdef RTE_LIBRTE_DPAA_DEBUG_DRIVER
 742         if (fq->fqid == ((struct dpaa_if *)fq->dpaa_intf)->rx_queues[0].fqid)
 743                 dpaa_eth_err_queue((struct dpaa_if *)fq->dpaa_intf);
 744 #endif
 745
 746         if (likely(fq->is_static))
 747                 return dpaa_eth_queue_portal_rx(fq, bufs, nb_bufs);
 748
 749         if (unlikely(!DPAA_PER_LCORE_PORTAL)) {
 750                 ret = rte_dpaa_portal_init((void *)0);
 751                 if (ret) {
 752                         DPAA_PMD_ERR("Failure in affining portal");
 753                         return 0;
 754                 }
 755         }
 756
 757         /* Until request for four buffers, we provide exact number of buffers.
 758          * Otherwise we do not set the QM_VDQCR_EXACT flag.
 759          * Not setting QM_VDQCR_EXACT flag can provide two more buffers than
 760          * requested, so we request two less in this case.
 761          */
 762         if (nb_bufs < 4) {
 763                 vdqcr_flags = QM_VDQCR_EXACT;
 764                 num_rx_bufs = nb_bufs;
 765         } else {
 766                 num_rx_bufs = nb_bufs > DPAA_MAX_DEQUEUE_NUM_FRAMES ?
 767                         (DPAA_MAX_DEQUEUE_NUM_FRAMES - 2) : (nb_bufs - 2);
 768         }
 769         ret = qman_set_vdq(fq, num_rx_bufs, vdqcr_flags);
 770         if (ret)
 771                 return 0;
 772
 773         do {
 774                 dq = qman_dequeue(fq);
 775                 if (!dq)
 776                         continue;
 777                 bufs[num_rx++] = dpaa_eth_fd_to_mbuf(&dq->fd, ifid);
 778                 dpaa_display_frame_info(&dq->fd, fq->fqid, true);
 779                 qman_dqrr_consume(fq, dq);
 780         } while (fq->flags & QMAN_FQ_STATE_VDQCR);
 781
 782         return num_rx;
 783 }
 784
 785 int
 786 dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
 787                 struct qm_fd *fd,
 788                 uint32_t bpid)
 789 {
 790         struct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL;
 791         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(bpid);
 792         struct rte_mbuf *temp, *mi;
 793         struct qm_sg_entry *sg_temp, *sgt;
 794         int i = 0;
 795
 796         DPAA_DP_LOG(DEBUG, "Creating SG FD to transmit");
 797
 798         temp = rte_pktmbuf_alloc(bp_info->mp);
 799         if (!temp) {
 800                 DPAA_PMD_ERR("Failure in allocation of mbuf");
 801                 return -1;
 802         }
 803         if (temp->buf_len < ((mbuf->nb_segs * sizeof(struct qm_sg_entry))
 804                                 + temp->data_off)) {
 805                 DPAA_PMD_ERR("Insufficient space in mbuf for SG entries");
 806                 return -1;
 807         }
 808
 809         fd->cmd = 0;
 810         fd->opaque_addr = 0;
 811
 812         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) {
 813                 if (!mbuf->packet_type) {
 814                         struct rte_net_hdr_lens hdr_lens;
 815
 816                         mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens,
 817                                         RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK
 818                                         | RTE_PTYPE_L4_MASK);
 819                         mbuf->l2_len = hdr_lens.l2_len;
 820                         mbuf->l3_len = hdr_lens.l3_len;
 821                 }
 822                 if (temp->data_off < DEFAULT_TX_ICEOF
 823                         + sizeof(struct dpaa_eth_parse_results_t))
 824                         temp->data_off = DEFAULT_TX_ICEOF
 825                                 + sizeof(struct dpaa_eth_parse_results_t);
 826                 dcbz_64(temp->buf_addr);
 827                 dpaa_checksum_offload(mbuf, fd, temp->buf_addr);
 828         }
 829
 830         sgt = temp->buf_addr + temp->data_off;
 831         fd->format = QM_FD_SG;
 832         fd->addr = temp->buf_iova;
 833         fd->offset = temp->data_off;
 834         fd->bpid = bpid;
 835         fd->length20 = mbuf->pkt_len;
 836
 837         while (i < DPAA_SGT_MAX_ENTRIES) {
 838                 sg_temp = &sgt[i++];
 839                 sg_temp->opaque = 0;
 840                 sg_temp->val = 0;
 841                 sg_temp->addr = cur_seg->buf_iova;
 842                 sg_temp->offset = cur_seg->data_off;
 843                 sg_temp->length = cur_seg->data_len;
 844                 if (RTE_MBUF_DIRECT(cur_seg)) {
 845                         if (rte_mbuf_refcnt_read(cur_seg) > 1) {
 846                                 /*If refcnt > 1, invalid bpid is set to ensure
 847                                  * buffer is not freed by HW.
 848                                  */
 849                                 sg_temp->bpid = 0xff;
 850                                 rte_mbuf_refcnt_update(cur_seg, -1);
 851                         } else {
 852                                 sg_temp->bpid =
 853                                         DPAA_MEMPOOL_TO_BPID(cur_seg->pool);
 854                         }
 855                         cur_seg = cur_seg->next;
 856                 } else {
 857                         /* Get owner MBUF from indirect buffer */
 858                         mi = rte_mbuf_from_indirect(cur_seg);
 859                         if (rte_mbuf_refcnt_read(mi) > 1) {
 860                                 /*If refcnt > 1, invalid bpid is set to ensure
 861                                  * owner buffer is not freed by HW.
 862                                  */
 863                                 sg_temp->bpid = 0xff;
 864                         } else {
 865                                 sg_temp->bpid = DPAA_MEMPOOL_TO_BPID(mi->pool);
 866                                 rte_mbuf_refcnt_update(mi, 1);
 867                         }
 868                         prev_seg = cur_seg;
 869                         cur_seg = cur_seg->next;
 870                         prev_seg->next = NULL;
 871                         rte_pktmbuf_free(prev_seg);
 872                 }
 873                 if (cur_seg == NULL) {
 874                         sg_temp->final = 1;
 875                         cpu_to_hw_sg(sg_temp);
 876                         break;
 877                 }
 878                 cpu_to_hw_sg(sg_temp);
 879         }
 880         return 0;
 881 }
 882
 883 /* Handle mbufs which are not segmented (non SG) */
 884 static inline void
 885 tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf,
 886                             struct dpaa_bp_info *bp_info,
 887                             struct qm_fd *fd_arr)
 888 {
 889         struct rte_mbuf *mi = NULL;
 890
 891         if (RTE_MBUF_DIRECT(mbuf)) {
 892                 if (rte_mbuf_refcnt_read(mbuf) > 1) {
 893                         /* In case of direct mbuf and mbuf being cloned,
 894                          * BMAN should _not_ release buffer.
 895                          */
 896                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
 897                         /* Buffer should be releasd by EAL */
 898                         rte_mbuf_refcnt_update(mbuf, -1);
 899                 } else {
 900                         /* In case of direct mbuf and no cloning, mbuf can be
 901                          * released by BMAN.
 902                          */
 903                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
 904                 }
 905         } else {
 906                 /* This is data-containing core mbuf: 'mi' */
 907                 mi = rte_mbuf_from_indirect(mbuf);
 908                 if (rte_mbuf_refcnt_read(mi) > 1) {
 909                         /* In case of indirect mbuf, and mbuf being cloned,
 910                          * BMAN should _not_ release it and let EAL release
 911                          * it through pktmbuf_free below.
 912                          */
 913                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
 914                 } else {
 915                         /* In case of indirect mbuf, and no cloning, core mbuf
 916                          * should be released by BMAN.
 917                          * Increate refcnt of core mbuf so that when
 918                          * pktmbuf_free is called and mbuf is released, EAL
 919                          * doesn't try to release core mbuf which would have
 920                          * been released by BMAN.
 921                          */
 922                         rte_mbuf_refcnt_update(mi, 1);
 923                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
 924                 }
 925                 rte_pktmbuf_free(mbuf);
 926         }
 927
 928         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK)
 929                 dpaa_unsegmented_checksum(mbuf, fd_arr);
 930 }
 931
 932 /* Handle all mbufs on dpaa BMAN managed pool */
 933 static inline uint16_t
 934 tx_on_dpaa_pool(struct rte_mbuf *mbuf,
 935                 struct dpaa_bp_info *bp_info,
 936                 struct qm_fd *fd_arr)
 937 {
 938         DPAA_DP_LOG(DEBUG, "BMAN offloaded buffer, mbuf: %p", mbuf);
 939
 940         if (mbuf->nb_segs == 1) {
 941                 /* Case for non-segmented buffers */
 942                 tx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr);
 943         } else if (mbuf->nb_segs > 1 &&
 944                    mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) {
 945                 if (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info->bpid)) {
 946                         DPAA_PMD_DEBUG("Unable to create Scatter Gather FD");
 947                         return 1;
 948                 }
 949         } else {
 950                 DPAA_PMD_DEBUG("Number of Segments not supported");
 951                 return 1;
 952         }
 953
 954         return 0;
 955 }
 956
 957 /* Handle all mbufs on an external pool (non-dpaa) */
 958 static inline struct rte_mbuf *
 959 reallocate_mbuf(struct qman_fq *txq, struct rte_mbuf *mbuf)
 960 {
 961         struct dpaa_if *dpaa_intf = txq->dpaa_intf;
 962         struct dpaa_bp_info *bp_info = dpaa_intf->bp_info;
 963         struct rte_mbuf *new_mbufs[DPAA_SGT_MAX_ENTRIES + 1] = {0};
 964         struct rte_mbuf *temp_mbuf;
 965         int num_new_segs, mbuf_greater, ret, extra_seg = 0, i = 0;
 966         uint64_t mbufs_size, bytes_to_copy, offset1 = 0, offset2 = 0;
 967         char *data;
 968
 969         DPAA_DP_LOG(DEBUG, "Reallocating transmit buffer");
 970
 971         mbufs_size = bp_info->size -
 972                 bp_info->meta_data_size - RTE_PKTMBUF_HEADROOM;
 973         extra_seg = !!(mbuf->pkt_len % mbufs_size);
 974         num_new_segs = (mbuf->pkt_len / mbufs_size) + extra_seg;
 975
 976         ret = rte_pktmbuf_alloc_bulk(bp_info->mp, new_mbufs, num_new_segs);
 977         if (ret != 0) {
 978                 DPAA_DP_LOG(DEBUG, "Allocation for new buffers failed");
 979                 return NULL;
 980         }
 981
 982         temp_mbuf = mbuf;
 983
 984         while (temp_mbuf) {
 985                 /* If mbuf data is less than new mbuf remaining memory */
 986                 if ((temp_mbuf->data_len - offset1) < (mbufs_size - offset2)) {
 987                         bytes_to_copy = temp_mbuf->data_len - offset1;
 988                         mbuf_greater = -1;
 989                 /* If mbuf data is greater than new mbuf remaining memory */
 990                 } else if ((temp_mbuf->data_len - offset1) >
 991                            (mbufs_size - offset2)) {
 992                         bytes_to_copy = mbufs_size - offset2;
 993                         mbuf_greater = 1;
 994                 /* if mbuf data is equal to new mbuf remaining memory */
 995                 } else {
 996                         bytes_to_copy = temp_mbuf->data_len - offset1;
 997                         mbuf_greater = 0;
 998                 }
 999
1000                 /* Copy the data */
1001                 data = rte_pktmbuf_append(new_mbufs[0], bytes_to_copy);
1002
1003                 rte_memcpy((uint8_t *)data, rte_pktmbuf_mtod_offset(mbuf,
1004                            void *, offset1), bytes_to_copy);
1005
1006                 /* Set new offsets and the temp buffers */
1007                 if (mbuf_greater == -1) {
1008                         offset1 = 0;
1009                         offset2 += bytes_to_copy;
1010                         temp_mbuf = temp_mbuf->next;
1011                 } else if (mbuf_greater == 1) {
1012                         offset2 = 0;
1013                         offset1 += bytes_to_copy;
1014                         new_mbufs[i]->next = new_mbufs[i + 1];
1015                         new_mbufs[0]->nb_segs++;
1016                         i++;
1017                 } else {
1018                         offset1 = 0;
1019                         offset2 = 0;
1020                         temp_mbuf = temp_mbuf->next;
1021                         new_mbufs[i]->next = new_mbufs[i + 1];
1022                         if (new_mbufs[i + 1])
1023                                 new_mbufs[0]->nb_segs++;
1024                         i++;
1025                 }
1026         }
1027
1028         /* Copy other required fields */
1029         new_mbufs[0]->ol_flags = mbuf->ol_flags;
1030         new_mbufs[0]->packet_type = mbuf->packet_type;
1031         new_mbufs[0]->tx_offload = mbuf->tx_offload;
1032
1033         rte_pktmbuf_free(mbuf);
1034
1035         return new_mbufs[0];
1036 }
1037
1038 uint16_t
1039 dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
1040 {
1041         struct rte_mbuf *mbuf, *mi = NULL;
1042         struct rte_mempool *mp;
1043         struct dpaa_bp_info *bp_info;
1044         struct qm_fd fd_arr[DPAA_TX_BURST_SIZE];
1045         uint32_t frames_to_send, loop, sent = 0;
1046         uint16_t state;
1047         int ret, realloc_mbuf = 0;
1048         uint32_t seqn, index, flags[DPAA_TX_BURST_SIZE] = {0};
1049
1050         if (unlikely(!DPAA_PER_LCORE_PORTAL)) {
1051                 ret = rte_dpaa_portal_init((void *)0);
1052                 if (ret) {
1053                         DPAA_PMD_ERR("Failure in affining portal");
1054                         return 0;
1055                 }
1056         }
1057
1058         DPAA_DP_LOG(DEBUG, "Transmitting %d buffers on queue: %p", nb_bufs, q);
1059
1060         while (nb_bufs) {
1061                 frames_to_send = (nb_bufs > DPAA_TX_BURST_SIZE) ?
1062                                 DPAA_TX_BURST_SIZE : nb_bufs;
1063                 for (loop = 0; loop < frames_to_send; loop++) {
1064                         mbuf = *(bufs++);
1065                         /* In case the data offset is not multiple of 16,
1066                          * FMAN can stall because of an errata. So reallocate
1067                          * the buffer in such case.
1068                          */
1069                         if (dpaa_svr_family == SVR_LS1043A_FAMILY &&
1070                                         (mbuf->data_off & 0x7F) != 0x0)
1071                                 realloc_mbuf = 1;
1072                         seqn = mbuf->seqn;
1073                         if (seqn != DPAA_INVALID_MBUF_SEQN) {
1074                                 index = seqn - 1;
1075                                 if (DPAA_PER_LCORE_DQRR_HELD & (1 << index)) {
1076                                         flags[loop] =
1077                                            ((index & QM_EQCR_DCA_IDXMASK) << 8);
1078                                         flags[loop] |= QMAN_ENQUEUE_FLAG_DCA;
1079                                         DPAA_PER_LCORE_DQRR_SIZE--;
1080                                         DPAA_PER_LCORE_DQRR_HELD &=
1081                                                                 ~(1 << index);
1082                                 }
1083                         }
1084
1085                         if (likely(RTE_MBUF_DIRECT(mbuf))) {
1086                                 mp = mbuf->pool;
1087                                 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
1088                                 if (likely(mp->ops_index ==
1089                                                 bp_info->dpaa_ops_index &&
1090                                         mbuf->nb_segs == 1 &&
1091                                         realloc_mbuf == 0 &&
1092                                         rte_mbuf_refcnt_read(mbuf) == 1)) {
1093                                         DPAA_MBUF_TO_CONTIG_FD(mbuf,
1094                                                 &fd_arr[loop], bp_info->bpid);
1095                                         if (mbuf->ol_flags &
1096                                                 DPAA_TX_CKSUM_OFFLOAD_MASK)
1097                                                 dpaa_unsegmented_checksum(mbuf,
1098                                                         &fd_arr[loop]);
1099                                         continue;
1100                                 }
1101                         } else {
1102                                 mi = rte_mbuf_from_indirect(mbuf);
1103                                 mp = mi->pool;
1104                         }
1105
1106                         bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
1107                         if (unlikely(mp->ops_index != bp_info->dpaa_ops_index ||
1108                                      realloc_mbuf == 1)) {
1109                                 struct rte_mbuf *temp_mbuf;
1110
1111                                 temp_mbuf = reallocate_mbuf(q, mbuf);
1112                                 if (!temp_mbuf) {
1113                                         /* Set frames_to_send & nb_bufs so
1114                                          * that packets are transmitted till
1115                                          * previous frame.
1116                                          */
1117                                         frames_to_send = loop;
1118                                         nb_bufs = loop;
1119                                         goto send_pkts;
1120                                 }
1121                                 mbuf = temp_mbuf;
1122                                 realloc_mbuf = 0;
1123                         }
1124
1125                         state = tx_on_dpaa_pool(mbuf, bp_info,
1126                                                 &fd_arr[loop]);
1127                         if (unlikely(state)) {
1128                                 /* Set frames_to_send & nb_bufs so
1129                                  * that packets are transmitted till
1130                                  * previous frame.
1131                                  */
1132                                 frames_to_send = loop;
1133                                 nb_bufs = loop;
1134                                 goto send_pkts;
1135                         }
1136                 }
1137
1138 send_pkts:
1139                 loop = 0;
1140                 while (loop < frames_to_send) {
1141                         loop += qman_enqueue_multi(q, &fd_arr[loop],
1142                                                    &flags[loop],
1143                                                    frames_to_send - loop);
1144                 }
1145                 nb_bufs -= frames_to_send;
1146                 sent += frames_to_send;
1147         }
1148
1149         DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", sent, q);
1150
1151         return sent;
1152 }
1153
1154 uint16_t
1155 dpaa_eth_queue_tx_slow(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
1156 {
1157         qman_ern_poll_free();
1158
1159         return dpaa_eth_queue_tx(q, bufs, nb_bufs);
1160 }
1161
1162 uint16_t dpaa_eth_tx_drop_all(void *q  __rte_unused,
1163                               struct rte_mbuf **bufs __rte_unused,
1164                 uint16_t nb_bufs __rte_unused)
1165 {
1166         DPAA_DP_LOG(DEBUG, "Drop all packets");
1167
1168         /* Drop all incoming packets. No need to free packets here
1169          * because the rte_eth f/w frees up the packets through tx_buffer
1170          * callback in case this functions returns count less than nb_bufs
1171          */
1172         return 0;
1173 }