drivers/net/ark/ark_ethdev_rx.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright (c) 2015-2018 Atomic Rules LLC
   3  */
   4
   5 #include <unistd.h>
   6
   7 #include "ark_ethdev_rx.h"
   8 #include "ark_global.h"
   9 #include "ark_logs.h"
  10 #include "ark_mpu.h"
  11 #include "ark_udm.h"
  12
  13 #define ARK_RX_META_SIZE 32
  14 #define ARK_RX_META_OFFSET (RTE_PKTMBUF_HEADROOM - ARK_RX_META_SIZE)
  15 #define ARK_RX_MAX_NOCHAIN (RTE_MBUF_DEFAULT_DATAROOM)
  16
  17 /* Forward declarations */
  18 struct ark_rx_queue;
  19 struct ark_rx_meta;
  20
  21 static void dump_mbuf_data(struct rte_mbuf *mbuf, uint16_t lo, uint16_t hi);
  22 static void ark_ethdev_rx_dump(const char *name, struct ark_rx_queue *queue);
  23 static uint32_t eth_ark_rx_jumbo(struct ark_rx_queue *queue,
  24                                  struct ark_rx_meta *meta,
  25                                  struct rte_mbuf *mbuf0,
  26                                  uint32_t cons_index);
  27 static inline int eth_ark_rx_seed_mbufs(struct ark_rx_queue *queue);
  28
  29 /* ************************************************************************* */
  30 struct ark_rx_queue {
  31         /* array of mbufs to populate */
  32         struct rte_mbuf **reserve_q;
  33         /* array of physical addresses of the mbuf data pointer */
  34         /* This point is a virtual address */
  35         rte_iova_t *paddress_q;
  36         struct rte_mempool *mb_pool;
  37
  38         struct ark_udm_t *udm;
  39         struct ark_mpu_t *mpu;
  40
  41         uint32_t queue_size;
  42         uint32_t queue_mask;
  43
  44         uint32_t seed_index;            /* step 1 set with empty mbuf */
  45         uint32_t cons_index;            /* step 3 consumed by driver */
  46
  47         /* The queue Id is used to identify the HW Q */
  48         uint16_t phys_qid;
  49
  50         /* The queue Index is used within the dpdk device structures */
  51         uint16_t queue_index;
  52
  53         uint32_t pad1;
  54
  55         /* separate cache line */
  56         /* second cache line - fields only used in slow path */
  57         MARKER cacheline1 __rte_cache_min_aligned;
  58
  59         volatile uint32_t prod_index;   /* step 2 filled by FPGA */
  60 } __rte_cache_aligned;
  61
  62
  63 /* ************************************************************************* */
  64 static int
  65 eth_ark_rx_hw_setup(struct rte_eth_dev *dev,
  66                     struct ark_rx_queue *queue,
  67                     uint16_t rx_queue_id __rte_unused, uint16_t rx_queue_idx)
  68 {
  69         rte_iova_t queue_base;
  70         rte_iova_t phys_addr_q_base;
  71         rte_iova_t phys_addr_prod_index;
  72
  73         queue_base = rte_malloc_virt2iova(queue);
  74         phys_addr_prod_index = queue_base +
  75                 offsetof(struct ark_rx_queue, prod_index);
  76
  77         phys_addr_q_base = rte_malloc_virt2iova(queue->paddress_q);
  78
  79         /* Verify HW */
  80         if (ark_mpu_verify(queue->mpu, sizeof(rte_iova_t))) {
  81                 PMD_DRV_LOG(ERR, "Illegal configuration rx queue\n");
  82                 return -1;
  83         }
  84
  85         /* Stop and Reset and configure MPU */
  86         ark_mpu_configure(queue->mpu, phys_addr_q_base, queue->queue_size, 0);
  87
  88         ark_udm_write_addr(queue->udm, phys_addr_prod_index);
  89
  90         /* advance the valid pointer, but don't start until the queue starts */
  91         ark_mpu_reset_stats(queue->mpu);
  92
  93         /* The seed is the producer index for the HW */
  94         ark_mpu_set_producer(queue->mpu, queue->seed_index);
  95         dev->data->rx_queue_state[rx_queue_idx] = RTE_ETH_QUEUE_STATE_STOPPED;
  96
  97         return 0;
  98 }
  99
 100 static inline void
 101 eth_ark_rx_update_cons_index(struct ark_rx_queue *queue, uint32_t cons_index)
 102 {
 103         queue->cons_index = cons_index;
 104         eth_ark_rx_seed_mbufs(queue);
 105         ark_mpu_set_producer(queue->mpu, queue->seed_index);
 106 }
 107
 108 /* ************************************************************************* */
 109 int
 110 eth_ark_dev_rx_queue_setup(struct rte_eth_dev *dev,
 111                            uint16_t queue_idx,
 112                            uint16_t nb_desc,
 113                            unsigned int socket_id,
 114                            const struct rte_eth_rxconf *rx_conf,
 115                            struct rte_mempool *mb_pool)
 116 {
 117         static int warning1;            /* = 0 */
 118         struct ark_adapter *ark = (struct ark_adapter *)dev->data->dev_private;
 119
 120         struct ark_rx_queue *queue;
 121         uint32_t i;
 122         int status;
 123
 124         /* Future works: divide the Q's evenly with multi-ports */
 125         int port = dev->data->port_id;
 126         int qidx = port + queue_idx;
 127
 128         /* We may already be setup, free memory prior to re-allocation */
 129         if (dev->data->rx_queues[queue_idx] != NULL) {
 130                 eth_ark_dev_rx_queue_release(dev->data->rx_queues[queue_idx]);
 131                 dev->data->rx_queues[queue_idx] = NULL;
 132         }
 133
 134         if (rx_conf != NULL && warning1 == 0) {
 135                 warning1 = 1;
 136                 PMD_DRV_LOG(INFO,
 137                             "Arkville ignores rte_eth_rxconf argument.\n");
 138         }
 139
 140         if (RTE_PKTMBUF_HEADROOM < ARK_RX_META_SIZE) {
 141                 PMD_DRV_LOG(ERR,
 142                             "Error: DPDK Arkville requires head room > %d bytes (%s)\n",
 143                             ARK_RX_META_SIZE, __func__);
 144                 return -1;              /* ERROR CODE */
 145         }
 146
 147         if (!rte_is_power_of_2(nb_desc)) {
 148                 PMD_DRV_LOG(ERR,
 149                             "DPDK Arkville configuration queue size must be power of two %u (%s)\n",
 150                             nb_desc, __func__);
 151                 return -1;              /* ERROR CODE */
 152         }
 153
 154         /* Allocate queue struct */
 155         queue = rte_zmalloc_socket("Ark_rxqueue",
 156                                    sizeof(struct ark_rx_queue),
 157                                    64,
 158                                    socket_id);
 159         if (queue == 0) {
 160                 PMD_DRV_LOG(ERR, "Failed to allocate memory in %s\n", __func__);
 161                 return -ENOMEM;
 162         }
 163
 164         /* NOTE zmalloc is used, no need to 0 indexes, etc. */
 165         queue->mb_pool = mb_pool;
 166         queue->phys_qid = qidx;
 167         queue->queue_index = queue_idx;
 168         queue->queue_size = nb_desc;
 169         queue->queue_mask = nb_desc - 1;
 170
 171         queue->reserve_q =
 172                 rte_zmalloc_socket("Ark_rx_queue mbuf",
 173                                    nb_desc * sizeof(struct rte_mbuf *),
 174                                    64,
 175                                    socket_id);
 176         queue->paddress_q =
 177                 rte_zmalloc_socket("Ark_rx_queue paddr",
 178                                    nb_desc * sizeof(rte_iova_t),
 179                                    64,
 180                                    socket_id);
 181
 182         if (queue->reserve_q == 0 || queue->paddress_q == 0) {
 183                 PMD_DRV_LOG(ERR,
 184                             "Failed to allocate queue memory in %s\n",
 185                             __func__);
 186                 rte_free(queue->reserve_q);
 187                 rte_free(queue->paddress_q);
 188                 rte_free(queue);
 189                 return -ENOMEM;
 190         }
 191
 192         dev->data->rx_queues[queue_idx] = queue;
 193         queue->udm = RTE_PTR_ADD(ark->udm.v, qidx * ARK_UDM_QOFFSET);
 194         queue->mpu = RTE_PTR_ADD(ark->mpurx.v, qidx * ARK_MPU_QOFFSET);
 195
 196         /* populate mbuf reserve */
 197         status = eth_ark_rx_seed_mbufs(queue);
 198
 199         /* MPU Setup */
 200         if (status == 0)
 201                 status = eth_ark_rx_hw_setup(dev, queue, qidx, queue_idx);
 202
 203         if (unlikely(status != 0)) {
 204                 struct rte_mbuf *mbuf;
 205
 206                 PMD_DRV_LOG(ERR, "Failed to initialize RX queue %d %s\n",
 207                             qidx,
 208                             __func__);
 209                 /* Free the mbufs allocated */
 210                 for (i = 0, mbuf = queue->reserve_q[0];
 211                      i < nb_desc; ++i, mbuf++) {
 212                         rte_pktmbuf_free(mbuf);
 213                 }
 214                 rte_free(queue->reserve_q);
 215                 rte_free(queue->paddress_q);
 216                 rte_free(queue);
 217                 return -1;              /* ERROR CODE */
 218         }
 219
 220         return 0;
 221 }
 222
 223 /* ************************************************************************* */
 224 uint16_t
 225 eth_ark_recv_pkts_noop(void *rx_queue __rte_unused,
 226                        struct rte_mbuf **rx_pkts __rte_unused,
 227                        uint16_t nb_pkts __rte_unused)
 228 {
 229         return 0;
 230 }
 231
 232 /* ************************************************************************* */
 233 uint16_t
 234 eth_ark_recv_pkts(void *rx_queue,
 235                   struct rte_mbuf **rx_pkts,
 236                   uint16_t nb_pkts)
 237 {
 238         struct ark_rx_queue *queue;
 239         register uint32_t cons_index, prod_index;
 240         uint16_t nb;
 241         struct rte_mbuf *mbuf;
 242         struct ark_rx_meta *meta;
 243
 244         queue = (struct ark_rx_queue *)rx_queue;
 245         if (unlikely(queue == 0))
 246                 return 0;
 247         if (unlikely(nb_pkts == 0))
 248                 return 0;
 249         prod_index = queue->prod_index;
 250         cons_index = queue->cons_index;
 251         nb = 0;
 252
 253         while (prod_index != cons_index) {
 254                 mbuf = queue->reserve_q[cons_index & queue->queue_mask];
 255                 /* prefetch mbuf */
 256                 rte_mbuf_prefetch_part1(mbuf);
 257                 rte_mbuf_prefetch_part2(mbuf);
 258
 259                 /* META DATA embedded in headroom */
 260                 meta = RTE_PTR_ADD(mbuf->buf_addr, ARK_RX_META_OFFSET);
 261
 262                 mbuf->port = meta->port;
 263                 mbuf->pkt_len = meta->pkt_len;
 264                 mbuf->data_len = meta->pkt_len;
 265                 mbuf->timestamp = meta->timestamp;
 266                 mbuf->udata64 = meta->user_data;
 267
 268                 if (ARK_RX_DEBUG) {     /* debug sanity checks */
 269                         if ((meta->pkt_len > (1024 * 16)) ||
 270                             (meta->pkt_len == 0)) {
 271                                 PMD_RX_LOG(DEBUG, "RX: Bad Meta Q: %u"
 272                                            " cons: %" PRIU32
 273                                            " prod: %" PRIU32
 274                                            " seed_index %" PRIU32
 275                                            "\n",
 276                                            queue->phys_qid,
 277                                            cons_index,
 278                                            queue->prod_index,
 279                                            queue->seed_index);
 280
 281
 282                                 PMD_RX_LOG(DEBUG, "       :  UDM"
 283                                            " prod: %" PRIU32
 284                                            " len: %u\n",
 285                                            queue->udm->rt_cfg.prod_idx,
 286                                            meta->pkt_len);
 287                                 ark_mpu_dump(queue->mpu,
 288                                              "    ",
 289                                              queue->phys_qid);
 290                                 dump_mbuf_data(mbuf, 0, 256);
 291                                 /* its FUBAR so fix it */
 292                                 mbuf->pkt_len = 63;
 293                                 meta->pkt_len = 63;
 294                         }
 295                         /* seqn is only set under debug */
 296                         mbuf->seqn = cons_index;
 297                 }
 298
 299                 if (unlikely(meta->pkt_len > ARK_RX_MAX_NOCHAIN))
 300                         cons_index = eth_ark_rx_jumbo
 301                                 (queue, meta, mbuf, cons_index + 1);
 302                 else
 303                         cons_index += 1;
 304
 305                 rx_pkts[nb] = mbuf;
 306                 nb++;
 307                 if (nb >= nb_pkts)
 308                         break;
 309         }
 310
 311         if (unlikely(nb != 0))
 312                 /* report next free to FPGA */
 313                 eth_ark_rx_update_cons_index(queue, cons_index);
 314
 315         return nb;
 316 }
 317
 318 /* ************************************************************************* */
 319 static uint32_t
 320 eth_ark_rx_jumbo(struct ark_rx_queue *queue,
 321                  struct ark_rx_meta *meta,
 322                  struct rte_mbuf *mbuf0,
 323                  uint32_t cons_index)
 324 {
 325         struct rte_mbuf *mbuf_prev;
 326         struct rte_mbuf *mbuf;
 327
 328         uint16_t remaining;
 329         uint16_t data_len;
 330         uint16_t segments;
 331
 332         /* first buf populated by called */
 333         mbuf_prev = mbuf0;
 334         segments = 1;
 335         data_len = RTE_MIN(meta->pkt_len, RTE_MBUF_DEFAULT_DATAROOM);
 336         remaining = meta->pkt_len - data_len;
 337         mbuf0->data_len = data_len;
 338
 339         /* HW guarantees that the data does not exceed prod_index! */
 340         while (remaining != 0) {
 341                 data_len = RTE_MIN(remaining,
 342                                    RTE_MBUF_DEFAULT_DATAROOM +
 343                                    RTE_PKTMBUF_HEADROOM);
 344
 345                 remaining -= data_len;
 346                 segments += 1;
 347
 348                 mbuf = queue->reserve_q[cons_index & queue->queue_mask];
 349                 mbuf_prev->next = mbuf;
 350                 mbuf_prev = mbuf;
 351                 mbuf->data_len = data_len;
 352                 mbuf->data_off = 0;
 353                 if (ARK_RX_DEBUG)
 354                         mbuf->seqn = cons_index;        /* for debug only */
 355
 356                 cons_index += 1;
 357         }
 358
 359         mbuf0->nb_segs = segments;
 360         return cons_index;
 361 }
 362
 363 /* Drain the internal queue allowing hw to clear out. */
 364 static void
 365 eth_ark_rx_queue_drain(struct ark_rx_queue *queue)
 366 {
 367         register uint32_t cons_index;
 368         struct rte_mbuf *mbuf;
 369
 370         cons_index = queue->cons_index;
 371
 372         /* NOT performance optimized, since this is a one-shot call */
 373         while ((cons_index ^ queue->prod_index) & queue->queue_mask) {
 374                 mbuf = queue->reserve_q[cons_index & queue->queue_mask];
 375                 rte_pktmbuf_free(mbuf);
 376                 cons_index++;
 377                 eth_ark_rx_update_cons_index(queue, cons_index);
 378         }
 379 }
 380
 381 uint32_t
 382 eth_ark_dev_rx_queue_count(struct rte_eth_dev *dev, uint16_t queue_id)
 383 {
 384         struct ark_rx_queue *queue;
 385
 386         queue = dev->data->rx_queues[queue_id];
 387         return (queue->prod_index - queue->cons_index); /* mod arith */
 388 }
 389
 390 /* ************************************************************************* */
 391 int
 392 eth_ark_rx_start_queue(struct rte_eth_dev *dev, uint16_t queue_id)
 393 {
 394         struct ark_rx_queue *queue;
 395
 396         queue = dev->data->rx_queues[queue_id];
 397         if (queue == 0)
 398                 return -1;
 399
 400         dev->data->rx_queue_state[queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
 401
 402         ark_mpu_set_producer(queue->mpu, queue->seed_index);
 403         ark_mpu_start(queue->mpu);
 404
 405         ark_udm_queue_enable(queue->udm, 1);
 406
 407         return 0;
 408 }
 409
 410 /* ************************************************************************* */
 411
 412 /* Queue can be restarted.   data remains
 413  */
 414 int
 415 eth_ark_rx_stop_queue(struct rte_eth_dev *dev, uint16_t queue_id)
 416 {
 417         struct ark_rx_queue *queue;
 418
 419         queue = dev->data->rx_queues[queue_id];
 420         if (queue == 0)
 421                 return -1;
 422
 423         ark_udm_queue_enable(queue->udm, 0);
 424
 425         dev->data->rx_queue_state[queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
 426
 427         return 0;
 428 }
 429
 430 /* ************************************************************************* */
 431 static inline int
 432 eth_ark_rx_seed_mbufs(struct ark_rx_queue *queue)
 433 {
 434         uint32_t limit = queue->cons_index + queue->queue_size;
 435         uint32_t seed_index = queue->seed_index;
 436
 437         uint32_t count = 0;
 438         uint32_t seed_m = queue->seed_index & queue->queue_mask;
 439
 440         uint32_t nb = limit - seed_index;
 441
 442         /* Handle wrap around -- remainder is filled on the next call */
 443         if (unlikely(seed_m + nb > queue->queue_size))
 444                 nb = queue->queue_size - seed_m;
 445
 446         struct rte_mbuf **mbufs = &queue->reserve_q[seed_m];
 447         int status = rte_pktmbuf_alloc_bulk(queue->mb_pool, mbufs, nb);
 448
 449         if (unlikely(status != 0))
 450                 return -1;
 451
 452         if (ARK_RX_DEBUG) {             /* DEBUG */
 453                 while (count != nb) {
 454                         struct rte_mbuf *mbuf_init =
 455                                 queue->reserve_q[seed_m + count];
 456
 457                         memset(mbuf_init->buf_addr, -1, 512);
 458                         *((uint32_t *)mbuf_init->buf_addr) =
 459                                 seed_index + count;
 460                         *(uint16_t *)RTE_PTR_ADD(mbuf_init->buf_addr, 4) =
 461                                 queue->phys_qid;
 462                         count++;
 463                 }
 464                 count = 0;
 465         } /* DEBUG */
 466         queue->seed_index += nb;
 467
 468         /* Duff's device https://en.wikipedia.org/wiki/Duff's_device */
 469         switch (nb % 4) {
 470         case 0:
 471                 while (count != nb) {
 472                         queue->paddress_q[seed_m++] =
 473                                 (*mbufs++)->buf_iova;
 474                         count++;
 475                 /* FALLTHROUGH */
 476         case 3:
 477                 queue->paddress_q[seed_m++] =
 478                         (*mbufs++)->buf_iova;
 479                 count++;
 480                 /* FALLTHROUGH */
 481         case 2:
 482                 queue->paddress_q[seed_m++] =
 483                         (*mbufs++)->buf_iova;
 484                 count++;
 485                 /* FALLTHROUGH */
 486         case 1:
 487                 queue->paddress_q[seed_m++] =
 488                         (*mbufs++)->buf_iova;
 489                 count++;
 490                 /* FALLTHROUGH */
 491
 492                 } /* while (count != nb) */
 493         } /* switch */
 494
 495         return 0;
 496 }
 497
 498 void
 499 eth_ark_rx_dump_queue(struct rte_eth_dev *dev, uint16_t queue_id,
 500                       const char *msg)
 501 {
 502         struct ark_rx_queue *queue;
 503
 504         queue = dev->data->rx_queues[queue_id];
 505
 506         ark_ethdev_rx_dump(msg, queue);
 507 }
 508
 509 /* ************************************************************************* */
 510 /* Call on device closed no user API, queue is stopped */
 511 void
 512 eth_ark_dev_rx_queue_release(void *vqueue)
 513 {
 514         struct ark_rx_queue *queue;
 515         uint32_t i;
 516
 517         queue = (struct ark_rx_queue *)vqueue;
 518         if (queue == 0)
 519                 return;
 520
 521         ark_udm_queue_enable(queue->udm, 0);
 522         /* Stop the MPU since pointer are going away */
 523         ark_mpu_stop(queue->mpu);
 524
 525         /* Need to clear out mbufs here, dropping packets along the way */
 526         eth_ark_rx_queue_drain(queue);
 527
 528         for (i = 0; i < queue->queue_size; ++i)
 529                 rte_pktmbuf_free(queue->reserve_q[i]);
 530
 531         rte_free(queue->reserve_q);
 532         rte_free(queue->paddress_q);
 533         rte_free(queue);
 534 }
 535
 536 void
 537 eth_rx_queue_stats_get(void *vqueue, struct rte_eth_stats *stats)
 538 {
 539         struct ark_rx_queue *queue;
 540         struct ark_udm_t *udm;
 541
 542         queue = vqueue;
 543         if (queue == 0)
 544                 return;
 545         udm = queue->udm;
 546
 547         uint64_t ibytes = ark_udm_bytes(udm);
 548         uint64_t ipackets = ark_udm_packets(udm);
 549         uint64_t idropped = ark_udm_dropped(queue->udm);
 550
 551         stats->q_ipackets[queue->queue_index] = ipackets;
 552         stats->q_ibytes[queue->queue_index] = ibytes;
 553         stats->q_errors[queue->queue_index] = idropped;
 554         stats->ipackets += ipackets;
 555         stats->ibytes += ibytes;
 556         stats->imissed += idropped;
 557 }
 558
 559 void
 560 eth_rx_queue_stats_reset(void *vqueue)
 561 {
 562         struct ark_rx_queue *queue;
 563
 564         queue = vqueue;
 565         if (queue == 0)
 566                 return;
 567
 568         ark_mpu_reset_stats(queue->mpu);
 569         ark_udm_queue_stats_reset(queue->udm);
 570 }
 571
 572 void
 573 eth_ark_udm_force_close(struct rte_eth_dev *dev)
 574 {
 575         struct ark_adapter *ark = (struct ark_adapter *)dev->data->dev_private;
 576         struct ark_rx_queue *queue;
 577         uint32_t index;
 578         uint16_t i;
 579
 580         if (!ark_udm_is_flushed(ark->udm.v)) {
 581                 /* restart the MPUs */
 582                 PMD_DRV_LOG(ERR, "ARK: %s UDM not flushed\n", __func__);
 583                 for (i = 0; i < dev->data->nb_rx_queues; i++) {
 584                         queue = (struct ark_rx_queue *)dev->data->rx_queues[i];
 585                         if (queue == 0)
 586                                 continue;
 587
 588                         ark_mpu_start(queue->mpu);
 589                         /* Add some buffers */
 590                         index = 100000 + queue->seed_index;
 591                         ark_mpu_set_producer(queue->mpu, index);
 592                 }
 593                 /* Wait to allow data to pass */
 594                 usleep(100);
 595
 596                 PMD_DEBUG_LOG(DEBUG, "UDM forced flush attempt, stopped = %d\n",
 597                                 ark_udm_is_flushed(ark->udm.v));
 598         }
 599         ark_udm_reset(ark->udm.v);
 600 }
 601
 602 static void
 603 ark_ethdev_rx_dump(const char *name, struct ark_rx_queue *queue)
 604 {
 605         if (queue == NULL)
 606                 return;
 607         PMD_DEBUG_LOG(DEBUG, "RX QUEUE %d -- %s", queue->phys_qid, name);
 608         PMD_DEBUG_LOG(DEBUG, ARK_SU32 ARK_SU32 ARK_SU32 ARK_SU32 "\n",
 609                         "queue_size", queue->queue_size,
 610                         "seed_index", queue->seed_index,
 611                         "prod_index", queue->prod_index,
 612                         "cons_index", queue->cons_index);
 613
 614         ark_mpu_dump(queue->mpu, name, queue->phys_qid);
 615         ark_mpu_dump_setup(queue->mpu, queue->phys_qid);
 616         ark_udm_dump(queue->udm, name);
 617         ark_udm_dump_setup(queue->udm, queue->phys_qid);
 618 }
 619
 620 /* Only used in debug.
 621  * This function is a raw memory dump of a portion of an mbuf's memory
 622  * region.  The usual function, rte_pktmbuf_dump() only shows data
 623  * with respect to the data_off field.  This function show data
 624  * anywhere in the mbuf's buffer.  This is useful for examining
 625  * data in the headroom or tailroom portion of an mbuf.
 626  */
 627 static void
 628 dump_mbuf_data(struct rte_mbuf *mbuf, uint16_t lo, uint16_t hi)
 629 {
 630         uint16_t i, j;
 631
 632         PMD_DRV_LOG(INFO, " MBUF: %p len %d, off: %d, seq: %" PRIU32 "\n", mbuf,
 633                 mbuf->pkt_len, mbuf->data_off, mbuf->seqn);
 634         for (i = lo; i < hi; i += 16) {
 635                 uint8_t *dp = RTE_PTR_ADD(mbuf->buf_addr, i);
 636
 637                 PMD_DRV_LOG(INFO, "  %6d:  ", i);
 638                 for (j = 0; j < 16; j++)
 639                         PMD_DRV_LOG(INFO, " %02x", dp[j]);
 640
 641                 PMD_DRV_LOG(INFO, "\n");
 642         }
 643 }