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         m->ol_flags = PKT_RX_RSS_HASH | PKT_RX_IP_CKSUM_GOOD |
 129                 PKT_RX_L4_CKSUM_GOOD;
 130
 131         switch (prs) {
 132         case DPAA_PKT_TYPE_IPV4:
 133                 m->packet_type = RTE_PTYPE_L2_ETHER |
 134                         RTE_PTYPE_L3_IPV4;
 135                 break;
 136         case DPAA_PKT_TYPE_IPV6:
 137                 m->packet_type = RTE_PTYPE_L2_ETHER |
 138                         RTE_PTYPE_L3_IPV6;
 139                 break;
 140         case DPAA_PKT_TYPE_ETHER:
 141                 m->packet_type = RTE_PTYPE_L2_ETHER;
 142                 break;
 143         case DPAA_PKT_TYPE_IPV4_FRAG:
 144         case DPAA_PKT_TYPE_IPV4_FRAG_UDP:
 145         case DPAA_PKT_TYPE_IPV4_FRAG_TCP:
 146         case DPAA_PKT_TYPE_IPV4_FRAG_SCTP:
 147                 m->packet_type = RTE_PTYPE_L2_ETHER |
 148                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_FRAG;
 149                 break;
 150         case DPAA_PKT_TYPE_IPV6_FRAG:
 151         case DPAA_PKT_TYPE_IPV6_FRAG_UDP:
 152         case DPAA_PKT_TYPE_IPV6_FRAG_TCP:
 153         case DPAA_PKT_TYPE_IPV6_FRAG_SCTP:
 154                 m->packet_type = RTE_PTYPE_L2_ETHER |
 155                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_FRAG;
 156                 break;
 157         case DPAA_PKT_TYPE_IPV4_EXT:
 158                 m->packet_type = RTE_PTYPE_L2_ETHER |
 159                         RTE_PTYPE_L3_IPV4_EXT;
 160                 break;
 161         case DPAA_PKT_TYPE_IPV6_EXT:
 162                 m->packet_type = RTE_PTYPE_L2_ETHER |
 163                         RTE_PTYPE_L3_IPV6_EXT;
 164                 break;
 165         case DPAA_PKT_TYPE_IPV4_TCP:
 166                 m->packet_type = RTE_PTYPE_L2_ETHER |
 167                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_TCP;
 168                 break;
 169         case DPAA_PKT_TYPE_IPV6_TCP:
 170                 m->packet_type = RTE_PTYPE_L2_ETHER |
 171                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP;
 172                 break;
 173         case DPAA_PKT_TYPE_IPV4_UDP:
 174                 m->packet_type = RTE_PTYPE_L2_ETHER |
 175                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_UDP;
 176                 break;
 177         case DPAA_PKT_TYPE_IPV6_UDP:
 178                 m->packet_type = RTE_PTYPE_L2_ETHER |
 179                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP;
 180                 break;
 181         case DPAA_PKT_TYPE_IPV4_EXT_UDP:
 182                 m->packet_type = RTE_PTYPE_L2_ETHER |
 183                         RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_UDP;
 184                 break;
 185         case DPAA_PKT_TYPE_IPV6_EXT_UDP:
 186                 m->packet_type = RTE_PTYPE_L2_ETHER |
 187                         RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_UDP;
 188                 break;
 189         case DPAA_PKT_TYPE_IPV4_EXT_TCP:
 190                 m->packet_type = RTE_PTYPE_L2_ETHER |
 191                         RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_TCP;
 192                 break;
 193         case DPAA_PKT_TYPE_IPV6_EXT_TCP:
 194                 m->packet_type = RTE_PTYPE_L2_ETHER |
 195                         RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_TCP;
 196                 break;
 197         case DPAA_PKT_TYPE_IPV4_SCTP:
 198                 m->packet_type = RTE_PTYPE_L2_ETHER |
 199                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_SCTP;
 200                 break;
 201         case DPAA_PKT_TYPE_IPV6_SCTP:
 202                 m->packet_type = RTE_PTYPE_L2_ETHER |
 203                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_SCTP;
 204                 break;
 205         case DPAA_PKT_TYPE_IPV4_CSUM_ERR:
 206         case DPAA_PKT_TYPE_IPV6_CSUM_ERR:
 207                 m->ol_flags = PKT_RX_RSS_HASH | PKT_RX_IP_CKSUM_BAD;
 208                 break;
 209         case DPAA_PKT_TYPE_IPV4_TCP_CSUM_ERR:
 210         case DPAA_PKT_TYPE_IPV6_TCP_CSUM_ERR:
 211         case DPAA_PKT_TYPE_IPV4_UDP_CSUM_ERR:
 212         case DPAA_PKT_TYPE_IPV6_UDP_CSUM_ERR:
 213                 m->ol_flags = PKT_RX_RSS_HASH | PKT_RX_L4_CKSUM_BAD;
 214                 break;
 215         case DPAA_PKT_TYPE_NONE:
 216                 m->packet_type = 0;
 217                 break;
 218         /* More switch cases can be added */
 219         default:
 220                 dpaa_slow_parsing(m, prs);
 221         }
 222
 223         m->tx_offload = annot->parse.ip_off[0];
 224         m->tx_offload |= (annot->parse.l4_off - annot->parse.ip_off[0])
 225                                         << DPAA_PKT_L3_LEN_SHIFT;
 226
 227         /* Set the hash values */
 228         m->hash.rss = (uint32_t)(annot->hash);
 229
 230         /* Check if Vlan is present */
 231         if (prs & DPAA_PARSE_VLAN_MASK)
 232                 m->ol_flags |= PKT_RX_VLAN;
 233         /* Packet received without stripping the vlan */
 234 }
 235
 236 static inline void dpaa_checksum(struct rte_mbuf *mbuf)
 237 {
 238         struct rte_ether_hdr *eth_hdr =
 239                 rte_pktmbuf_mtod(mbuf, struct rte_ether_hdr *);
 240         char *l3_hdr = (char *)eth_hdr + mbuf->l2_len;
 241         struct rte_ipv4_hdr *ipv4_hdr = (struct rte_ipv4_hdr *)l3_hdr;
 242         struct rte_ipv6_hdr *ipv6_hdr = (struct rte_ipv6_hdr *)l3_hdr;
 243
 244         DPAA_DP_LOG(DEBUG, "Calculating checksum for mbuf: %p", mbuf);
 245
 246         if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) ||
 247             ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 248             RTE_PTYPE_L3_IPV4_EXT)) {
 249                 ipv4_hdr = (struct rte_ipv4_hdr *)l3_hdr;
 250                 ipv4_hdr->hdr_checksum = 0;
 251                 ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr);
 252         } else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 253                    RTE_PTYPE_L3_IPV6) ||
 254                    ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 255                    RTE_PTYPE_L3_IPV6_EXT))
 256                 ipv6_hdr = (struct rte_ipv6_hdr *)l3_hdr;
 257
 258         if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) {
 259                 struct rte_tcp_hdr *tcp_hdr = (struct rte_tcp_hdr *)(l3_hdr +
 260                                           mbuf->l3_len);
 261                 tcp_hdr->cksum = 0;
 262                 if (eth_hdr->ether_type == htons(RTE_ETHER_TYPE_IPV4))
 263                         tcp_hdr->cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
 264                                                                tcp_hdr);
 265                 else /* assume ethertype == RTE_ETHER_TYPE_IPV6 */
 266                         tcp_hdr->cksum = rte_ipv6_udptcp_cksum(ipv6_hdr,
 267                                                                tcp_hdr);
 268         } else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) ==
 269                    RTE_PTYPE_L4_UDP) {
 270                 struct rte_udp_hdr *udp_hdr = (struct rte_udp_hdr *)(l3_hdr +
 271                                                              mbuf->l3_len);
 272                 udp_hdr->dgram_cksum = 0;
 273                 if (eth_hdr->ether_type == htons(RTE_ETHER_TYPE_IPV4))
 274                         udp_hdr->dgram_cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
 275                                                                      udp_hdr);
 276                 else /* assume ethertype == RTE_ETHER_TYPE_IPV6 */
 277                         udp_hdr->dgram_cksum = rte_ipv6_udptcp_cksum(ipv6_hdr,
 278                                                                      udp_hdr);
 279         }
 280 }
 281
 282 static inline void dpaa_checksum_offload(struct rte_mbuf *mbuf,
 283                                          struct qm_fd *fd, char *prs_buf)
 284 {
 285         struct dpaa_eth_parse_results_t *prs;
 286
 287         DPAA_DP_LOG(DEBUG, " Offloading checksum for mbuf: %p", mbuf);
 288
 289         prs = GET_TX_PRS(prs_buf);
 290         prs->l3r = 0;
 291         prs->l4r = 0;
 292         if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) ||
 293            ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 294            RTE_PTYPE_L3_IPV4_EXT))
 295                 prs->l3r = DPAA_L3_PARSE_RESULT_IPV4;
 296         else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 297                    RTE_PTYPE_L3_IPV6) ||
 298                  ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
 299                 RTE_PTYPE_L3_IPV6_EXT))
 300                 prs->l3r = DPAA_L3_PARSE_RESULT_IPV6;
 301
 302         if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP)
 303                 prs->l4r = DPAA_L4_PARSE_RESULT_TCP;
 304         else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_UDP)
 305                 prs->l4r = DPAA_L4_PARSE_RESULT_UDP;
 306
 307         prs->ip_off[0] = mbuf->l2_len;
 308         prs->l4_off = mbuf->l3_len + mbuf->l2_len;
 309         /* Enable L3 (and L4, if TCP or UDP) HW checksum*/
 310         fd->cmd = DPAA_FD_CMD_RPD | DPAA_FD_CMD_DTC;
 311 }
 312
 313 static inline void
 314 dpaa_unsegmented_checksum(struct rte_mbuf *mbuf, struct qm_fd *fd_arr)
 315 {
 316         if (!mbuf->packet_type) {
 317                 struct rte_net_hdr_lens hdr_lens;
 318
 319                 mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens,
 320                                 RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK
 321                                 | RTE_PTYPE_L4_MASK);
 322                 mbuf->l2_len = hdr_lens.l2_len;
 323                 mbuf->l3_len = hdr_lens.l3_len;
 324         }
 325         if (mbuf->data_off < (DEFAULT_TX_ICEOF +
 326             sizeof(struct dpaa_eth_parse_results_t))) {
 327                 DPAA_DP_LOG(DEBUG, "Checksum offload Err: "
 328                         "Not enough Headroom "
 329                         "space for correct Checksum offload."
 330                         "So Calculating checksum in Software.");
 331                 dpaa_checksum(mbuf);
 332         } else {
 333                 dpaa_checksum_offload(mbuf, fd_arr, mbuf->buf_addr);
 334         }
 335 }
 336
 337 struct rte_mbuf *
 338 dpaa_eth_sg_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
 339 {
 340         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
 341         struct rte_mbuf *first_seg, *prev_seg, *cur_seg, *temp;
 342         struct qm_sg_entry *sgt, *sg_temp;
 343         void *vaddr, *sg_vaddr;
 344         int i = 0;
 345         uint16_t fd_offset = fd->offset;
 346
 347         vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 348         if (!vaddr) {
 349                 DPAA_PMD_ERR("unable to convert physical address");
 350                 return NULL;
 351         }
 352         sgt = vaddr + fd_offset;
 353         sg_temp = &sgt[i++];
 354         hw_sg_to_cpu(sg_temp);
 355         temp = (struct rte_mbuf *)((char *)vaddr - bp_info->meta_data_size);
 356         sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_sg_entry_get64(sg_temp));
 357
 358         first_seg = (struct rte_mbuf *)((char *)sg_vaddr -
 359                                                 bp_info->meta_data_size);
 360         first_seg->data_off = sg_temp->offset;
 361         first_seg->data_len = sg_temp->length;
 362         first_seg->pkt_len = sg_temp->length;
 363         rte_mbuf_refcnt_set(first_seg, 1);
 364
 365         first_seg->port = ifid;
 366         first_seg->nb_segs = 1;
 367         first_seg->ol_flags = 0;
 368         prev_seg = first_seg;
 369         while (i < DPAA_SGT_MAX_ENTRIES) {
 370                 sg_temp = &sgt[i++];
 371                 hw_sg_to_cpu(sg_temp);
 372                 sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info,
 373                                              qm_sg_entry_get64(sg_temp));
 374                 cur_seg = (struct rte_mbuf *)((char *)sg_vaddr -
 375                                                       bp_info->meta_data_size);
 376                 cur_seg->data_off = sg_temp->offset;
 377                 cur_seg->data_len = sg_temp->length;
 378                 first_seg->pkt_len += sg_temp->length;
 379                 first_seg->nb_segs += 1;
 380                 rte_mbuf_refcnt_set(cur_seg, 1);
 381                 prev_seg->next = cur_seg;
 382                 if (sg_temp->final) {
 383                         cur_seg->next = NULL;
 384                         break;
 385                 }
 386                 prev_seg = cur_seg;
 387         }
 388         DPAA_DP_LOG(DEBUG, "Received an SG frame len =%d, num_sg =%d",
 389                         first_seg->pkt_len, first_seg->nb_segs);
 390
 391         dpaa_eth_packet_info(first_seg, vaddr);
 392         rte_pktmbuf_free_seg(temp);
 393
 394         return first_seg;
 395 }
 396
 397 static inline struct rte_mbuf *
 398 dpaa_eth_fd_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
 399 {
 400         struct rte_mbuf *mbuf;
 401         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
 402         void *ptr;
 403         uint8_t format =
 404                 (fd->opaque & DPAA_FD_FORMAT_MASK) >> DPAA_FD_FORMAT_SHIFT;
 405         uint16_t offset;
 406         uint32_t length;
 407
 408         if (unlikely(format == qm_fd_sg))
 409                 return dpaa_eth_sg_to_mbuf(fd, ifid);
 410
 411         offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT;
 412         length = fd->opaque & DPAA_FD_LENGTH_MASK;
 413
 414         DPAA_DP_LOG(DEBUG, " FD--->MBUF off %d len = %d", offset, length);
 415
 416         /* Ignoring case when format != qm_fd_contig */
 417         ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 418
 419         mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 420         /* Prefetch the Parse results and packet data to L1 */
 421         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 422
 423         mbuf->data_off = offset;
 424         mbuf->data_len = length;
 425         mbuf->pkt_len = length;
 426
 427         mbuf->port = ifid;
 428         mbuf->nb_segs = 1;
 429         mbuf->ol_flags = 0;
 430         mbuf->next = NULL;
 431         rte_mbuf_refcnt_set(mbuf, 1);
 432         dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
 433
 434         return mbuf;
 435 }
 436
 437 uint16_t
 438 dpaa_free_mbuf(const struct qm_fd *fd)
 439 {
 440         struct rte_mbuf *mbuf;
 441         struct dpaa_bp_info *bp_info;
 442         uint8_t format;
 443         void *ptr;
 444
 445         bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
 446         format = (fd->opaque & DPAA_FD_FORMAT_MASK) >> DPAA_FD_FORMAT_SHIFT;
 447         if (unlikely(format == qm_fd_sg)) {
 448                 struct rte_mbuf *first_seg, *prev_seg, *cur_seg, *temp;
 449                 struct qm_sg_entry *sgt, *sg_temp;
 450                 void *vaddr, *sg_vaddr;
 451                 int i = 0;
 452                 uint16_t fd_offset = fd->offset;
 453
 454                 vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 455                 if (!vaddr) {
 456                         DPAA_PMD_ERR("unable to convert physical address");
 457                         return -1;
 458                 }
 459                 sgt = vaddr + fd_offset;
 460                 sg_temp = &sgt[i++];
 461                 hw_sg_to_cpu(sg_temp);
 462                 temp = (struct rte_mbuf *)
 463                         ((char *)vaddr - bp_info->meta_data_size);
 464                 sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info,
 465                                                 qm_sg_entry_get64(sg_temp));
 466
 467                 first_seg = (struct rte_mbuf *)((char *)sg_vaddr -
 468                                                 bp_info->meta_data_size);
 469                 first_seg->nb_segs = 1;
 470                 prev_seg = first_seg;
 471                 while (i < DPAA_SGT_MAX_ENTRIES) {
 472                         sg_temp = &sgt[i++];
 473                         hw_sg_to_cpu(sg_temp);
 474                         sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info,
 475                                                 qm_sg_entry_get64(sg_temp));
 476                         cur_seg = (struct rte_mbuf *)((char *)sg_vaddr -
 477                                                       bp_info->meta_data_size);
 478                         first_seg->nb_segs += 1;
 479                         prev_seg->next = cur_seg;
 480                         if (sg_temp->final) {
 481                                 cur_seg->next = NULL;
 482                                 break;
 483                         }
 484                         prev_seg = cur_seg;
 485                 }
 486
 487                 rte_pktmbuf_free_seg(temp);
 488                 rte_pktmbuf_free_seg(first_seg);
 489                 return 0;
 490         }
 491
 492         ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
 493         mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 494
 495         rte_pktmbuf_free(mbuf);
 496
 497         return 0;
 498 }
 499
 500 /* Specific for LS1043 */
 501 void
 502 dpaa_rx_cb_no_prefetch(struct qman_fq **fq, struct qm_dqrr_entry **dqrr,
 503            void **bufs, int num_bufs)
 504 {
 505         struct rte_mbuf *mbuf;
 506         struct dpaa_bp_info *bp_info;
 507         const struct qm_fd *fd;
 508         void *ptr;
 509         struct dpaa_if *dpaa_intf;
 510         uint16_t offset, i;
 511         uint32_t length;
 512         uint8_t format;
 513
 514         bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[0]->fd.bpid);
 515         ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[0]->fd));
 516         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 517         bufs[0] = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 518
 519         for (i = 0; i < num_bufs; i++) {
 520                 if (i < num_bufs - 1) {
 521                         bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[i + 1]->fd.bpid);
 522                         ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[i + 1]->fd));
 523                         rte_prefetch0((void *)((uint8_t *)ptr +
 524                                         DEFAULT_RX_ICEOF));
 525                         bufs[i + 1] = (struct rte_mbuf *)((char *)ptr -
 526                                         bp_info->meta_data_size);
 527                 }
 528
 529                 fd = &dqrr[i]->fd;
 530                 dpaa_intf = fq[0]->dpaa_intf;
 531                 format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
 532                                 DPAA_FD_FORMAT_SHIFT;
 533                 if (unlikely(format == qm_fd_sg)) {
 534                         bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid);
 535                         continue;
 536                 }
 537
 538                 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >>
 539                                 DPAA_FD_OFFSET_SHIFT;
 540                 length = fd->opaque & DPAA_FD_LENGTH_MASK;
 541
 542                 mbuf = bufs[i];
 543                 mbuf->data_off = offset;
 544                 mbuf->data_len = length;
 545                 mbuf->pkt_len = length;
 546                 mbuf->port = dpaa_intf->ifid;
 547
 548                 mbuf->nb_segs = 1;
 549                 mbuf->ol_flags = 0;
 550                 mbuf->next = NULL;
 551                 rte_mbuf_refcnt_set(mbuf, 1);
 552                 dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
 553                 dpaa_display_frame_info(fd, fq[0]->fqid, true);
 554         }
 555 }
 556
 557 void
 558 dpaa_rx_cb(struct qman_fq **fq, struct qm_dqrr_entry **dqrr,
 559            void **bufs, int num_bufs)
 560 {
 561         struct rte_mbuf *mbuf;
 562         const struct qm_fd *fd;
 563         struct dpaa_if *dpaa_intf;
 564         uint16_t offset, i;
 565         uint32_t length;
 566         uint8_t format;
 567
 568         for (i = 0; i < num_bufs; i++) {
 569                 fd = &dqrr[i]->fd;
 570                 dpaa_intf = fq[0]->dpaa_intf;
 571                 format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
 572                                 DPAA_FD_FORMAT_SHIFT;
 573                 if (unlikely(format == qm_fd_sg)) {
 574                         bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid);
 575                         continue;
 576                 }
 577
 578                 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >>
 579                                 DPAA_FD_OFFSET_SHIFT;
 580                 length = fd->opaque & DPAA_FD_LENGTH_MASK;
 581
 582                 mbuf = bufs[i];
 583                 mbuf->data_off = offset;
 584                 mbuf->data_len = length;
 585                 mbuf->pkt_len = length;
 586                 mbuf->port = dpaa_intf->ifid;
 587
 588                 mbuf->nb_segs = 1;
 589                 mbuf->ol_flags = 0;
 590                 mbuf->next = NULL;
 591                 rte_mbuf_refcnt_set(mbuf, 1);
 592                 dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
 593                 dpaa_display_frame_info(fd, fq[0]->fqid, true);
 594         }
 595 }
 596
 597 void dpaa_rx_cb_prepare(struct qm_dqrr_entry *dq, void **bufs)
 598 {
 599         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(dq->fd.bpid);
 600         void *ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dq->fd));
 601
 602         /* In case of LS1046, annotation stashing is disabled due to L2 cache
 603          * being bottleneck in case of multicore scanario for this platform.
 604          * So we prefetch the annoation beforehand, so that it is available
 605          * in cache when accessed.
 606          */
 607         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
 608
 609         *bufs = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
 610 }
 611
 612 static uint16_t
 613 dpaa_eth_queue_portal_rx(struct qman_fq *fq,
 614                          struct rte_mbuf **bufs,
 615                          uint16_t nb_bufs)
 616 {
 617         int ret;
 618
 619         if (unlikely(!fq->qp_initialized)) {
 620                 ret = rte_dpaa_portal_fq_init((void *)0, fq);
 621                 if (ret) {
 622                         DPAA_PMD_ERR("Failure in affining portal %d", ret);
 623                         return 0;
 624                 }
 625                 fq->qp_initialized = 1;
 626         }
 627
 628         return qman_portal_poll_rx(nb_bufs, (void **)bufs, fq->qp);
 629 }
 630
 631 enum qman_cb_dqrr_result
 632 dpaa_rx_cb_parallel(void *event,
 633                     struct qman_portal *qm __always_unused,
 634                     struct qman_fq *fq,
 635                     const struct qm_dqrr_entry *dqrr,
 636                     void **bufs)
 637 {
 638         u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 639         struct rte_mbuf *mbuf;
 640         struct rte_event *ev = (struct rte_event *)event;
 641
 642         mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
 643         ev->event_ptr = (void *)mbuf;
 644         ev->flow_id = fq->ev.flow_id;
 645         ev->sub_event_type = fq->ev.sub_event_type;
 646         ev->event_type = RTE_EVENT_TYPE_ETHDEV;
 647         ev->op = RTE_EVENT_OP_NEW;
 648         ev->sched_type = fq->ev.sched_type;
 649         ev->queue_id = fq->ev.queue_id;
 650         ev->priority = fq->ev.priority;
 651         ev->impl_opaque = (uint8_t)DPAA_INVALID_MBUF_SEQN;
 652         mbuf->seqn = DPAA_INVALID_MBUF_SEQN;
 653         *bufs = mbuf;
 654
 655         return qman_cb_dqrr_consume;
 656 }
 657
 658 enum qman_cb_dqrr_result
 659 dpaa_rx_cb_atomic(void *event,
 660                   struct qman_portal *qm __always_unused,
 661                   struct qman_fq *fq,
 662                   const struct qm_dqrr_entry *dqrr,
 663                   void **bufs)
 664 {
 665         u8 index;
 666         u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 667         struct rte_mbuf *mbuf;
 668         struct rte_event *ev = (struct rte_event *)event;
 669
 670         mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
 671         ev->event_ptr = (void *)mbuf;
 672         ev->flow_id = fq->ev.flow_id;
 673         ev->sub_event_type = fq->ev.sub_event_type;
 674         ev->event_type = RTE_EVENT_TYPE_ETHDEV;
 675         ev->op = RTE_EVENT_OP_NEW;
 676         ev->sched_type = fq->ev.sched_type;
 677         ev->queue_id = fq->ev.queue_id;
 678         ev->priority = fq->ev.priority;
 679
 680         /* Save active dqrr entries */
 681         index = DQRR_PTR2IDX(dqrr);
 682         DPAA_PER_LCORE_DQRR_SIZE++;
 683         DPAA_PER_LCORE_DQRR_HELD |= 1 << index;
 684         DPAA_PER_LCORE_DQRR_MBUF(index) = mbuf;
 685         ev->impl_opaque = index + 1;
 686         mbuf->seqn = (uint32_t)index + 1;
 687         *bufs = mbuf;
 688
 689         return qman_cb_dqrr_defer;
 690 }
 691
 692 #ifdef RTE_LIBRTE_DPAA_DEBUG_DRIVER
 693 static inline void dpaa_eth_err_queue(struct dpaa_if *dpaa_intf)
 694 {
 695         struct rte_mbuf *mbuf;
 696         struct qman_fq *debug_fq;
 697         int ret, i;
 698         struct qm_dqrr_entry *dq;
 699         struct qm_fd *fd;
 700
 701         if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
 702                 ret = rte_dpaa_portal_init((void *)0);
 703                 if (ret) {
 704                         DPAA_PMD_ERR("Failure in affining portal");
 705                         return;
 706                 }
 707         }
 708         for (i = 0; i <= DPAA_DEBUG_FQ_TX_ERROR; i++) {
 709                 debug_fq = &dpaa_intf->debug_queues[i];
 710                 ret = qman_set_vdq(debug_fq, 4, QM_VDQCR_EXACT);
 711                 if (ret)
 712                         return;
 713
 714                 do {
 715                         dq = qman_dequeue(debug_fq);
 716                         if (!dq)
 717                                 continue;
 718                         fd = &dq->fd;
 719                         if (i == DPAA_DEBUG_FQ_RX_ERROR)
 720                                 DPAA_PMD_ERR("RX ERROR status: 0x%08x",
 721                                         fd->status);
 722                         else
 723                                 DPAA_PMD_ERR("TX ERROR status: 0x%08x",
 724                                         fd->status);
 725                         dpaa_display_frame_info(fd, debug_fq->fqid,
 726                                 i == DPAA_DEBUG_FQ_RX_ERROR);
 727
 728                         mbuf = dpaa_eth_fd_to_mbuf(fd, dpaa_intf->ifid);
 729                         rte_pktmbuf_free(mbuf);
 730                         qman_dqrr_consume(debug_fq, dq);
 731                 } while (debug_fq->flags & QMAN_FQ_STATE_VDQCR);
 732         }
 733 }
 734 #endif
 735
 736 uint16_t dpaa_eth_queue_rx(void *q,
 737                            struct rte_mbuf **bufs,
 738                            uint16_t nb_bufs)
 739 {
 740         struct qman_fq *fq = q;
 741         struct qm_dqrr_entry *dq;
 742         uint32_t num_rx = 0, ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
 743         int num_rx_bufs, ret;
 744         uint32_t vdqcr_flags = 0;
 745
 746         if (unlikely(rte_dpaa_bpid_info == NULL &&
 747                                 rte_eal_process_type() == RTE_PROC_SECONDARY))
 748                 rte_dpaa_bpid_info = fq->bp_array;
 749
 750 #ifdef RTE_LIBRTE_DPAA_DEBUG_DRIVER
 751         if (fq->fqid == ((struct dpaa_if *)fq->dpaa_intf)->rx_queues[0].fqid)
 752                 dpaa_eth_err_queue((struct dpaa_if *)fq->dpaa_intf);
 753 #endif
 754
 755         if (likely(fq->is_static))
 756                 return dpaa_eth_queue_portal_rx(fq, bufs, nb_bufs);
 757
 758         if (unlikely(!DPAA_PER_LCORE_PORTAL)) {
 759                 ret = rte_dpaa_portal_init((void *)0);
 760                 if (ret) {
 761                         DPAA_PMD_ERR("Failure in affining portal");
 762                         return 0;
 763                 }
 764         }
 765
 766         /* Until request for four buffers, we provide exact number of buffers.
 767          * Otherwise we do not set the QM_VDQCR_EXACT flag.
 768          * Not setting QM_VDQCR_EXACT flag can provide two more buffers than
 769          * requested, so we request two less in this case.
 770          */
 771         if (nb_bufs < 4) {
 772                 vdqcr_flags = QM_VDQCR_EXACT;
 773                 num_rx_bufs = nb_bufs;
 774         } else {
 775                 num_rx_bufs = nb_bufs > DPAA_MAX_DEQUEUE_NUM_FRAMES ?
 776                         (DPAA_MAX_DEQUEUE_NUM_FRAMES - 2) : (nb_bufs - 2);
 777         }
 778         ret = qman_set_vdq(fq, num_rx_bufs, vdqcr_flags);
 779         if (ret)
 780                 return 0;
 781
 782         do {
 783                 dq = qman_dequeue(fq);
 784                 if (!dq)
 785                         continue;
 786                 bufs[num_rx++] = dpaa_eth_fd_to_mbuf(&dq->fd, ifid);
 787                 dpaa_display_frame_info(&dq->fd, fq->fqid, true);
 788                 qman_dqrr_consume(fq, dq);
 789         } while (fq->flags & QMAN_FQ_STATE_VDQCR);
 790
 791         return num_rx;
 792 }
 793
 794 int
 795 dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
 796                 struct qm_fd *fd,
 797                 uint32_t bpid)
 798 {
 799         struct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL;
 800         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(bpid);
 801         struct rte_mbuf *temp, *mi;
 802         struct qm_sg_entry *sg_temp, *sgt;
 803         int i = 0;
 804
 805         DPAA_DP_LOG(DEBUG, "Creating SG FD to transmit");
 806
 807         temp = rte_pktmbuf_alloc(bp_info->mp);
 808         if (!temp) {
 809                 DPAA_PMD_ERR("Failure in allocation of mbuf");
 810                 return -1;
 811         }
 812         if (temp->buf_len < ((mbuf->nb_segs * sizeof(struct qm_sg_entry))
 813                                 + temp->data_off)) {
 814                 DPAA_PMD_ERR("Insufficient space in mbuf for SG entries");
 815                 return -1;
 816         }
 817
 818         fd->cmd = 0;
 819         fd->opaque_addr = 0;
 820
 821         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) {
 822                 if (!mbuf->packet_type) {
 823                         struct rte_net_hdr_lens hdr_lens;
 824
 825                         mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens,
 826                                         RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK
 827                                         | RTE_PTYPE_L4_MASK);
 828                         mbuf->l2_len = hdr_lens.l2_len;
 829                         mbuf->l3_len = hdr_lens.l3_len;
 830                 }
 831                 if (temp->data_off < DEFAULT_TX_ICEOF
 832                         + sizeof(struct dpaa_eth_parse_results_t))
 833                         temp->data_off = DEFAULT_TX_ICEOF
 834                                 + sizeof(struct dpaa_eth_parse_results_t);
 835                 dcbz_64(temp->buf_addr);
 836                 dpaa_checksum_offload(mbuf, fd, temp->buf_addr);
 837         }
 838
 839         sgt = temp->buf_addr + temp->data_off;
 840         fd->format = QM_FD_SG;
 841         fd->addr = temp->buf_iova;
 842         fd->offset = temp->data_off;
 843         fd->bpid = bpid;
 844         fd->length20 = mbuf->pkt_len;
 845
 846         while (i < DPAA_SGT_MAX_ENTRIES) {
 847                 sg_temp = &sgt[i++];
 848                 sg_temp->opaque = 0;
 849                 sg_temp->val = 0;
 850                 sg_temp->addr = cur_seg->buf_iova;
 851                 sg_temp->offset = cur_seg->data_off;
 852                 sg_temp->length = cur_seg->data_len;
 853                 if (RTE_MBUF_DIRECT(cur_seg)) {
 854                         if (rte_mbuf_refcnt_read(cur_seg) > 1) {
 855                                 /*If refcnt > 1, invalid bpid is set to ensure
 856                                  * buffer is not freed by HW.
 857                                  */
 858                                 sg_temp->bpid = 0xff;
 859                                 rte_mbuf_refcnt_update(cur_seg, -1);
 860                         } else {
 861                                 sg_temp->bpid =
 862                                         DPAA_MEMPOOL_TO_BPID(cur_seg->pool);
 863                         }
 864                         cur_seg = cur_seg->next;
 865                 } else {
 866                         /* Get owner MBUF from indirect buffer */
 867                         mi = rte_mbuf_from_indirect(cur_seg);
 868                         if (rte_mbuf_refcnt_read(mi) > 1) {
 869                                 /*If refcnt > 1, invalid bpid is set to ensure
 870                                  * owner buffer is not freed by HW.
 871                                  */
 872                                 sg_temp->bpid = 0xff;
 873                         } else {
 874                                 sg_temp->bpid = DPAA_MEMPOOL_TO_BPID(mi->pool);
 875                                 rte_mbuf_refcnt_update(mi, 1);
 876                         }
 877                         prev_seg = cur_seg;
 878                         cur_seg = cur_seg->next;
 879                         prev_seg->next = NULL;
 880                         rte_pktmbuf_free(prev_seg);
 881                 }
 882                 if (cur_seg == NULL) {
 883                         sg_temp->final = 1;
 884                         cpu_to_hw_sg(sg_temp);
 885                         break;
 886                 }
 887                 cpu_to_hw_sg(sg_temp);
 888         }
 889         return 0;
 890 }
 891
 892 /* Handle mbufs which are not segmented (non SG) */
 893 static inline void
 894 tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf,
 895                             struct dpaa_bp_info *bp_info,
 896                             struct qm_fd *fd_arr)
 897 {
 898         struct rte_mbuf *mi = NULL;
 899
 900         if (RTE_MBUF_DIRECT(mbuf)) {
 901                 if (rte_mbuf_refcnt_read(mbuf) > 1) {
 902                         /* In case of direct mbuf and mbuf being cloned,
 903                          * BMAN should _not_ release buffer.
 904                          */
 905                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
 906                         /* Buffer should be releasd by EAL */
 907                         rte_mbuf_refcnt_update(mbuf, -1);
 908                 } else {
 909                         /* In case of direct mbuf and no cloning, mbuf can be
 910                          * released by BMAN.
 911                          */
 912                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
 913                 }
 914         } else {
 915                 /* This is data-containing core mbuf: 'mi' */
 916                 mi = rte_mbuf_from_indirect(mbuf);
 917                 if (rte_mbuf_refcnt_read(mi) > 1) {
 918                         /* In case of indirect mbuf, and mbuf being cloned,
 919                          * BMAN should _not_ release it and let EAL release
 920                          * it through pktmbuf_free below.
 921                          */
 922                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
 923                 } else {
 924                         /* In case of indirect mbuf, and no cloning, core mbuf
 925                          * should be released by BMAN.
 926                          * Increate refcnt of core mbuf so that when
 927                          * pktmbuf_free is called and mbuf is released, EAL
 928                          * doesn't try to release core mbuf which would have
 929                          * been released by BMAN.
 930                          */
 931                         rte_mbuf_refcnt_update(mi, 1);
 932                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
 933                 }
 934                 rte_pktmbuf_free(mbuf);
 935         }
 936
 937         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK)
 938                 dpaa_unsegmented_checksum(mbuf, fd_arr);
 939 }
 940
 941 /* Handle all mbufs on dpaa BMAN managed pool */
 942 static inline uint16_t
 943 tx_on_dpaa_pool(struct rte_mbuf *mbuf,
 944                 struct dpaa_bp_info *bp_info,
 945                 struct qm_fd *fd_arr)
 946 {
 947         DPAA_DP_LOG(DEBUG, "BMAN offloaded buffer, mbuf: %p", mbuf);
 948
 949         if (mbuf->nb_segs == 1) {
 950                 /* Case for non-segmented buffers */
 951                 tx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr);
 952         } else if (mbuf->nb_segs > 1 &&
 953                    mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) {
 954                 if (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info->bpid)) {
 955                         DPAA_PMD_DEBUG("Unable to create Scatter Gather FD");
 956                         return 1;
 957                 }
 958         } else {
 959                 DPAA_PMD_DEBUG("Number of Segments not supported");
 960                 return 1;
 961         }
 962
 963         return 0;
 964 }
 965
 966 /* Handle all mbufs on an external pool (non-dpaa) */
 967 static inline struct rte_mbuf *
 968 reallocate_mbuf(struct qman_fq *txq, struct rte_mbuf *mbuf)
 969 {
 970         struct dpaa_if *dpaa_intf = txq->dpaa_intf;
 971         struct dpaa_bp_info *bp_info = dpaa_intf->bp_info;
 972         struct rte_mbuf *new_mbufs[DPAA_SGT_MAX_ENTRIES + 1] = {0};
 973         struct rte_mbuf *temp_mbuf;
 974         int num_new_segs, mbuf_greater, ret, extra_seg = 0, i = 0;
 975         uint64_t mbufs_size, bytes_to_copy, offset1 = 0, offset2 = 0;
 976         char *data;
 977
 978         DPAA_DP_LOG(DEBUG, "Reallocating transmit buffer");
 979
 980         mbufs_size = bp_info->size -
 981                 bp_info->meta_data_size - RTE_PKTMBUF_HEADROOM;
 982         extra_seg = !!(mbuf->pkt_len % mbufs_size);
 983         num_new_segs = (mbuf->pkt_len / mbufs_size) + extra_seg;
 984
 985         ret = rte_pktmbuf_alloc_bulk(bp_info->mp, new_mbufs, num_new_segs);
 986         if (ret != 0) {
 987                 DPAA_DP_LOG(DEBUG, "Allocation for new buffers failed");
 988                 return NULL;
 989         }
 990
 991         temp_mbuf = mbuf;
 992
 993         while (temp_mbuf) {
 994                 /* If mbuf data is less than new mbuf remaining memory */
 995                 if ((temp_mbuf->data_len - offset1) < (mbufs_size - offset2)) {
 996                         bytes_to_copy = temp_mbuf->data_len - offset1;
 997                         mbuf_greater = -1;
 998                 /* If mbuf data is greater than new mbuf remaining memory */
 999                 } else if ((temp_mbuf->data_len - offset1) >
1000                            (mbufs_size - offset2)) {
1001                         bytes_to_copy = mbufs_size - offset2;
1002                         mbuf_greater = 1;
1003                 /* if mbuf data is equal to new mbuf remaining memory */
1004                 } else {
1005                         bytes_to_copy = temp_mbuf->data_len - offset1;
1006                         mbuf_greater = 0;
1007                 }
1008
1009                 /* Copy the data */
1010                 data = rte_pktmbuf_append(new_mbufs[0], bytes_to_copy);
1011
1012                 rte_memcpy((uint8_t *)data, rte_pktmbuf_mtod_offset(mbuf,
1013                            void *, offset1), bytes_to_copy);
1014
1015                 /* Set new offsets and the temp buffers */
1016                 if (mbuf_greater == -1) {
1017                         offset1 = 0;
1018                         offset2 += bytes_to_copy;
1019                         temp_mbuf = temp_mbuf->next;
1020                 } else if (mbuf_greater == 1) {
1021                         offset2 = 0;
1022                         offset1 += bytes_to_copy;
1023                         new_mbufs[i]->next = new_mbufs[i + 1];
1024                         new_mbufs[0]->nb_segs++;
1025                         i++;
1026                 } else {
1027                         offset1 = 0;
1028                         offset2 = 0;
1029                         temp_mbuf = temp_mbuf->next;
1030                         new_mbufs[i]->next = new_mbufs[i + 1];
1031                         if (new_mbufs[i + 1])
1032                                 new_mbufs[0]->nb_segs++;
1033                         i++;
1034                 }
1035         }
1036
1037         /* Copy other required fields */
1038         new_mbufs[0]->ol_flags = mbuf->ol_flags;
1039         new_mbufs[0]->packet_type = mbuf->packet_type;
1040         new_mbufs[0]->tx_offload = mbuf->tx_offload;
1041
1042         rte_pktmbuf_free(mbuf);
1043
1044         return new_mbufs[0];
1045 }
1046
1047 uint16_t
1048 dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
1049 {
1050         struct rte_mbuf *mbuf, *mi = NULL;
1051         struct rte_mempool *mp;
1052         struct dpaa_bp_info *bp_info;
1053         struct qm_fd fd_arr[DPAA_TX_BURST_SIZE];
1054         uint32_t frames_to_send, loop, sent = 0;
1055         uint16_t state;
1056         int ret, realloc_mbuf = 0;
1057         uint32_t seqn, index, flags[DPAA_TX_BURST_SIZE] = {0};
1058
1059         if (unlikely(!DPAA_PER_LCORE_PORTAL)) {
1060                 ret = rte_dpaa_portal_init((void *)0);
1061                 if (ret) {
1062                         DPAA_PMD_ERR("Failure in affining portal");
1063                         return 0;
1064                 }
1065         }
1066
1067         DPAA_DP_LOG(DEBUG, "Transmitting %d buffers on queue: %p", nb_bufs, q);
1068
1069         while (nb_bufs) {
1070                 frames_to_send = (nb_bufs > DPAA_TX_BURST_SIZE) ?
1071                                 DPAA_TX_BURST_SIZE : nb_bufs;
1072                 for (loop = 0; loop < frames_to_send; loop++) {
1073                         mbuf = *(bufs++);
1074                         /* In case the data offset is not multiple of 16,
1075                          * FMAN can stall because of an errata. So reallocate
1076                          * the buffer in such case.
1077                          */
1078                         if (dpaa_svr_family == SVR_LS1043A_FAMILY &&
1079                                         (mbuf->data_off & 0x7F) != 0x0)
1080                                 realloc_mbuf = 1;
1081                         seqn = mbuf->seqn;
1082                         if (seqn != DPAA_INVALID_MBUF_SEQN) {
1083                                 index = seqn - 1;
1084                                 if (DPAA_PER_LCORE_DQRR_HELD & (1 << index)) {
1085                                         flags[loop] =
1086                                            ((index & QM_EQCR_DCA_IDXMASK) << 8);
1087                                         flags[loop] |= QMAN_ENQUEUE_FLAG_DCA;
1088                                         DPAA_PER_LCORE_DQRR_SIZE--;
1089                                         DPAA_PER_LCORE_DQRR_HELD &=
1090                                                                 ~(1 << index);
1091                                 }
1092                         }
1093
1094                         if (likely(RTE_MBUF_DIRECT(mbuf))) {
1095                                 mp = mbuf->pool;
1096                                 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
1097                                 if (likely(mp->ops_index ==
1098                                                 bp_info->dpaa_ops_index &&
1099                                         mbuf->nb_segs == 1 &&
1100                                         realloc_mbuf == 0 &&
1101                                         rte_mbuf_refcnt_read(mbuf) == 1)) {
1102                                         DPAA_MBUF_TO_CONTIG_FD(mbuf,
1103                                                 &fd_arr[loop], bp_info->bpid);
1104                                         if (mbuf->ol_flags &
1105                                                 DPAA_TX_CKSUM_OFFLOAD_MASK)
1106                                                 dpaa_unsegmented_checksum(mbuf,
1107                                                         &fd_arr[loop]);
1108                                         continue;
1109                                 }
1110                         } else {
1111                                 mi = rte_mbuf_from_indirect(mbuf);
1112                                 mp = mi->pool;
1113                         }
1114
1115                         bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
1116                         if (unlikely(mp->ops_index != bp_info->dpaa_ops_index ||
1117                                      realloc_mbuf == 1)) {
1118                                 struct rte_mbuf *temp_mbuf;
1119
1120                                 temp_mbuf = reallocate_mbuf(q, mbuf);
1121                                 if (!temp_mbuf) {
1122                                         /* Set frames_to_send & nb_bufs so
1123                                          * that packets are transmitted till
1124                                          * previous frame.
1125                                          */
1126                                         frames_to_send = loop;
1127                                         nb_bufs = loop;
1128                                         goto send_pkts;
1129                                 }
1130                                 mbuf = temp_mbuf;
1131                                 realloc_mbuf = 0;
1132                         }
1133
1134                         state = tx_on_dpaa_pool(mbuf, bp_info,
1135                                                 &fd_arr[loop]);
1136                         if (unlikely(state)) {
1137                                 /* Set frames_to_send & nb_bufs so
1138                                  * that packets are transmitted till
1139                                  * previous frame.
1140                                  */
1141                                 frames_to_send = loop;
1142                                 nb_bufs = loop;
1143                                 goto send_pkts;
1144                         }
1145                 }
1146
1147 send_pkts:
1148                 loop = 0;
1149                 while (loop < frames_to_send) {
1150                         loop += qman_enqueue_multi(q, &fd_arr[loop],
1151                                                    &flags[loop],
1152                                                    frames_to_send - loop);
1153                 }
1154                 nb_bufs -= frames_to_send;
1155                 sent += frames_to_send;
1156         }
1157
1158         DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", sent, q);
1159
1160         return sent;
1161 }
1162
1163 uint16_t
1164 dpaa_eth_queue_tx_slow(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
1165 {
1166         qman_ern_poll_free();
1167
1168         return dpaa_eth_queue_tx(q, bufs, nb_bufs);
1169 }
1170
1171 uint16_t dpaa_eth_tx_drop_all(void *q  __rte_unused,
1172                               struct rte_mbuf **bufs __rte_unused,
1173                 uint16_t nb_bufs __rte_unused)
1174 {
1175         DPAA_DP_LOG(DEBUG, "Drop all packets");
1176
1177         /* Drop all incoming packets. No need to free packets here
1178          * because the rte_eth f/w frees up the packets through tx_buffer
1179          * callback in case this functions returns count less than nb_bufs
1180          */
1181         return 0;
1182 }