6156730bb2bae9cc46045295fbea02e4db227aef
[dpdk.git] / 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 static int eth_ark_rx_seed_recovery(struct ark_rx_queue *queue,
29                                     uint32_t *pnb,
30                                     struct rte_mbuf **mbufs);
31
32 /* ************************************************************************* */
33 struct ark_rx_queue {
34         /* array of mbufs to populate */
35         struct rte_mbuf **reserve_q;
36         /* array of physical addresses of the mbuf data pointer */
37         /* This point is a virtual address */
38         rte_iova_t *paddress_q;
39         struct rte_mempool *mb_pool;
40
41         struct ark_udm_t *udm;
42         struct ark_mpu_t *mpu;
43
44         uint32_t queue_size;
45         uint32_t queue_mask;
46
47         uint32_t seed_index;            /* step 1 set with empty mbuf */
48         uint32_t cons_index;            /* step 3 consumed by driver */
49
50         /* The queue Id is used to identify the HW Q */
51         uint16_t phys_qid;
52
53         /* The queue Index is used within the dpdk device structures */
54         uint16_t queue_index;
55
56         uint32_t last_cons;
57
58         /* separate cache line */
59         /* second cache line - fields only used in slow path */
60         MARKER cacheline1 __rte_cache_min_aligned;
61
62         volatile uint32_t prod_index;   /* step 2 filled by FPGA */
63 } __rte_cache_aligned;
64
65
66 /* ************************************************************************* */
67 static int
68 eth_ark_rx_hw_setup(struct rte_eth_dev *dev,
69                     struct ark_rx_queue *queue,
70                     uint16_t rx_queue_id __rte_unused, uint16_t rx_queue_idx)
71 {
72         rte_iova_t queue_base;
73         rte_iova_t phys_addr_q_base;
74         rte_iova_t phys_addr_prod_index;
75
76         queue_base = rte_malloc_virt2iova(queue);
77         phys_addr_prod_index = queue_base +
78                 offsetof(struct ark_rx_queue, prod_index);
79
80         phys_addr_q_base = rte_malloc_virt2iova(queue->paddress_q);
81
82         /* Verify HW */
83         if (ark_mpu_verify(queue->mpu, sizeof(rte_iova_t))) {
84                 PMD_DRV_LOG(ERR, "Illegal configuration rx queue\n");
85                 return -1;
86         }
87
88         /* Stop and Reset and configure MPU */
89         ark_mpu_configure(queue->mpu, phys_addr_q_base, queue->queue_size, 0);
90
91         ark_udm_write_addr(queue->udm, phys_addr_prod_index);
92
93         /* advance the valid pointer, but don't start until the queue starts */
94         ark_mpu_reset_stats(queue->mpu);
95
96         /* The seed is the producer index for the HW */
97         ark_mpu_set_producer(queue->mpu, queue->seed_index);
98         dev->data->rx_queue_state[rx_queue_idx] = RTE_ETH_QUEUE_STATE_STOPPED;
99
100         return 0;
101 }
102
103 static inline void
104 eth_ark_rx_update_cons_index(struct ark_rx_queue *queue, uint32_t cons_index)
105 {
106         queue->cons_index = cons_index;
107         eth_ark_rx_seed_mbufs(queue);
108         if (((cons_index - queue->last_cons) >= 64U)) {
109                 queue->last_cons = cons_index;
110                 ark_mpu_set_producer(queue->mpu, queue->seed_index);
111         }
112 }
113
114 /* ************************************************************************* */
115 int
116 eth_ark_dev_rx_queue_setup(struct rte_eth_dev *dev,
117                            uint16_t queue_idx,
118                            uint16_t nb_desc,
119                            unsigned int socket_id,
120                            const struct rte_eth_rxconf *rx_conf,
121                            struct rte_mempool *mb_pool)
122 {
123         static int warning1;            /* = 0 */
124         struct ark_adapter *ark = dev->data->dev_private;
125
126         struct ark_rx_queue *queue;
127         uint32_t i;
128         int status;
129
130         int qidx = queue_idx;
131
132         /* We may already be setup, free memory prior to re-allocation */
133         if (dev->data->rx_queues[queue_idx] != NULL) {
134                 eth_ark_dev_rx_queue_release(dev->data->rx_queues[queue_idx]);
135                 dev->data->rx_queues[queue_idx] = NULL;
136         }
137
138         if (rx_conf != NULL && warning1 == 0) {
139                 warning1 = 1;
140                 PMD_DRV_LOG(INFO,
141                             "Arkville ignores rte_eth_rxconf argument.\n");
142         }
143
144         if (RTE_PKTMBUF_HEADROOM < ARK_RX_META_SIZE) {
145                 PMD_DRV_LOG(ERR,
146                             "Error: DPDK Arkville requires head room > %d bytes (%s)\n",
147                             ARK_RX_META_SIZE, __func__);
148                 return -1;              /* ERROR CODE */
149         }
150
151         if (!rte_is_power_of_2(nb_desc)) {
152                 PMD_DRV_LOG(ERR,
153                             "DPDK Arkville configuration queue size must be power of two %u (%s)\n",
154                             nb_desc, __func__);
155                 return -1;              /* ERROR CODE */
156         }
157
158         /* Allocate queue struct */
159         queue = rte_zmalloc_socket("Ark_rxqueue",
160                                    sizeof(struct ark_rx_queue),
161                                    64,
162                                    socket_id);
163         if (queue == 0) {
164                 PMD_DRV_LOG(ERR, "Failed to allocate memory in %s\n", __func__);
165                 return -ENOMEM;
166         }
167
168         /* NOTE zmalloc is used, no need to 0 indexes, etc. */
169         queue->mb_pool = mb_pool;
170         queue->phys_qid = qidx;
171         queue->queue_index = queue_idx;
172         queue->queue_size = nb_desc;
173         queue->queue_mask = nb_desc - 1;
174
175         queue->reserve_q =
176                 rte_zmalloc_socket("Ark_rx_queue mbuf",
177                                    nb_desc * sizeof(struct rte_mbuf *),
178                                    64,
179                                    socket_id);
180         queue->paddress_q =
181                 rte_zmalloc_socket("Ark_rx_queue paddr",
182                                    nb_desc * sizeof(rte_iova_t),
183                                    64,
184                                    socket_id);
185
186         if (queue->reserve_q == 0 || queue->paddress_q == 0) {
187                 PMD_DRV_LOG(ERR,
188                             "Failed to allocate queue memory in %s\n",
189                             __func__);
190                 rte_free(queue->reserve_q);
191                 rte_free(queue->paddress_q);
192                 rte_free(queue);
193                 return -ENOMEM;
194         }
195
196         dev->data->rx_queues[queue_idx] = queue;
197         queue->udm = RTE_PTR_ADD(ark->udm.v, qidx * ARK_UDM_QOFFSET);
198         queue->mpu = RTE_PTR_ADD(ark->mpurx.v, qidx * ARK_MPU_QOFFSET);
199
200         /* populate mbuf reserve */
201         status = eth_ark_rx_seed_mbufs(queue);
202
203         if (queue->seed_index != nb_desc) {
204                 PMD_DRV_LOG(ERR, "ARK: Failed to allocate %u mbufs for RX queue %d\n",
205                             nb_desc, qidx);
206                 status = -1;
207         }
208         /* MPU Setup */
209         if (status == 0)
210                 status = eth_ark_rx_hw_setup(dev, queue, qidx, queue_idx);
211
212         if (unlikely(status != 0)) {
213                 struct rte_mbuf **mbuf;
214
215                 PMD_DRV_LOG(ERR, "Failed to initialize RX queue %d %s\n",
216                             qidx,
217                             __func__);
218                 /* Free the mbufs allocated */
219                 for (i = 0, mbuf = queue->reserve_q;
220                      i < queue->seed_index; ++i, mbuf++) {
221                         rte_pktmbuf_free(*mbuf);
222                 }
223                 rte_free(queue->reserve_q);
224                 rte_free(queue->paddress_q);
225                 rte_free(queue);
226                 return -1;              /* ERROR CODE */
227         }
228
229         return 0;
230 }
231
232 /* ************************************************************************* */
233 uint16_t
234 eth_ark_recv_pkts_noop(void *rx_queue __rte_unused,
235                        struct rte_mbuf **rx_pkts __rte_unused,
236                        uint16_t nb_pkts __rte_unused)
237 {
238         return 0;
239 }
240
241 /* ************************************************************************* */
242 uint16_t
243 eth_ark_recv_pkts(void *rx_queue,
244                   struct rte_mbuf **rx_pkts,
245                   uint16_t nb_pkts)
246 {
247         struct ark_rx_queue *queue;
248         register uint32_t cons_index, prod_index;
249         uint16_t nb;
250         struct rte_mbuf *mbuf;
251         struct ark_rx_meta *meta;
252
253         queue = (struct ark_rx_queue *)rx_queue;
254         if (unlikely(queue == 0))
255                 return 0;
256         if (unlikely(nb_pkts == 0))
257                 return 0;
258         prod_index = queue->prod_index;
259         cons_index = queue->cons_index;
260         nb = 0;
261
262         while (prod_index != cons_index) {
263                 mbuf = queue->reserve_q[cons_index & queue->queue_mask];
264                 /* prefetch mbuf */
265                 rte_mbuf_prefetch_part1(mbuf);
266                 rte_mbuf_prefetch_part2(mbuf);
267
268                 /* META DATA embedded in headroom */
269                 meta = RTE_PTR_ADD(mbuf->buf_addr, ARK_RX_META_OFFSET);
270
271                 mbuf->port = meta->port;
272                 mbuf->pkt_len = meta->pkt_len;
273                 mbuf->data_len = meta->pkt_len;
274                 mbuf->timestamp = meta->timestamp;
275                 mbuf->udata64 = meta->user_data;
276
277                 if (ARK_RX_DEBUG) {     /* debug sanity checks */
278                         if ((meta->pkt_len > (1024 * 16)) ||
279                             (meta->pkt_len == 0)) {
280                                 PMD_RX_LOG(DEBUG, "RX: Bad Meta Q: %u"
281                                            " cons: %" PRIU32
282                                            " prod: %" PRIU32
283                                            " seed_index %" PRIU32
284                                            "\n",
285                                            queue->phys_qid,
286                                            cons_index,
287                                            queue->prod_index,
288                                            queue->seed_index);
289
290
291                                 PMD_RX_LOG(DEBUG, "       :  UDM"
292                                            " prod: %" PRIU32
293                                            " len: %u\n",
294                                            queue->udm->rt_cfg.prod_idx,
295                                            meta->pkt_len);
296                                 ark_mpu_dump(queue->mpu,
297                                              "    ",
298                                              queue->phys_qid);
299                                 dump_mbuf_data(mbuf, 0, 256);
300                                 /* its FUBAR so fix it */
301                                 mbuf->pkt_len = 63;
302                                 meta->pkt_len = 63;
303                         }
304                         /* seqn is only set under debug */
305                         mbuf->seqn = cons_index;
306                 }
307
308                 if (unlikely(meta->pkt_len > ARK_RX_MAX_NOCHAIN))
309                         cons_index = eth_ark_rx_jumbo
310                                 (queue, meta, mbuf, cons_index + 1);
311                 else
312                         cons_index += 1;
313
314                 rx_pkts[nb] = mbuf;
315                 nb++;
316                 if (nb >= nb_pkts)
317                         break;
318         }
319
320         if (unlikely(nb != 0))
321                 /* report next free to FPGA */
322                 eth_ark_rx_update_cons_index(queue, cons_index);
323
324         return nb;
325 }
326
327 /* ************************************************************************* */
328 static uint32_t
329 eth_ark_rx_jumbo(struct ark_rx_queue *queue,
330                  struct ark_rx_meta *meta,
331                  struct rte_mbuf *mbuf0,
332                  uint32_t cons_index)
333 {
334         struct rte_mbuf *mbuf_prev;
335         struct rte_mbuf *mbuf;
336
337         uint16_t remaining;
338         uint16_t data_len;
339         uint16_t segments;
340
341         /* first buf populated by called */
342         mbuf_prev = mbuf0;
343         segments = 1;
344         data_len = RTE_MIN(meta->pkt_len, RTE_MBUF_DEFAULT_DATAROOM);
345         remaining = meta->pkt_len - data_len;
346         mbuf0->data_len = data_len;
347
348         /* HW guarantees that the data does not exceed prod_index! */
349         while (remaining != 0) {
350                 data_len = RTE_MIN(remaining,
351                                    RTE_MBUF_DEFAULT_DATAROOM +
352                                    RTE_PKTMBUF_HEADROOM);
353
354                 remaining -= data_len;
355                 segments += 1;
356
357                 mbuf = queue->reserve_q[cons_index & queue->queue_mask];
358                 mbuf_prev->next = mbuf;
359                 mbuf_prev = mbuf;
360                 mbuf->data_len = data_len;
361                 mbuf->data_off = 0;
362                 if (ARK_RX_DEBUG)
363                         mbuf->seqn = cons_index;        /* for debug only */
364
365                 cons_index += 1;
366         }
367
368         mbuf0->nb_segs = segments;
369         return cons_index;
370 }
371
372 /* Drain the internal queue allowing hw to clear out. */
373 static void
374 eth_ark_rx_queue_drain(struct ark_rx_queue *queue)
375 {
376         register uint32_t cons_index;
377         struct rte_mbuf *mbuf;
378
379         cons_index = queue->cons_index;
380
381         /* NOT performance optimized, since this is a one-shot call */
382         while ((cons_index ^ queue->prod_index) & queue->queue_mask) {
383                 mbuf = queue->reserve_q[cons_index & queue->queue_mask];
384                 rte_pktmbuf_free(mbuf);
385                 cons_index++;
386                 eth_ark_rx_update_cons_index(queue, cons_index);
387         }
388 }
389
390 uint32_t
391 eth_ark_dev_rx_queue_count(struct rte_eth_dev *dev, uint16_t queue_id)
392 {
393         struct ark_rx_queue *queue;
394
395         queue = dev->data->rx_queues[queue_id];
396         return (queue->prod_index - queue->cons_index); /* mod arith */
397 }
398
399 /* ************************************************************************* */
400 int
401 eth_ark_rx_start_queue(struct rte_eth_dev *dev, uint16_t queue_id)
402 {
403         struct ark_rx_queue *queue;
404
405         queue = dev->data->rx_queues[queue_id];
406         if (queue == 0)
407                 return -1;
408
409         dev->data->rx_queue_state[queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
410
411         ark_mpu_set_producer(queue->mpu, queue->seed_index);
412         ark_mpu_start(queue->mpu);
413
414         ark_udm_queue_enable(queue->udm, 1);
415
416         return 0;
417 }
418
419 /* ************************************************************************* */
420
421 /* Queue can be restarted.   data remains
422  */
423 int
424 eth_ark_rx_stop_queue(struct rte_eth_dev *dev, uint16_t queue_id)
425 {
426         struct ark_rx_queue *queue;
427
428         queue = dev->data->rx_queues[queue_id];
429         if (queue == 0)
430                 return -1;
431
432         ark_udm_queue_enable(queue->udm, 0);
433
434         dev->data->rx_queue_state[queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
435
436         return 0;
437 }
438
439 /* ************************************************************************* */
440 static inline int
441 eth_ark_rx_seed_mbufs(struct ark_rx_queue *queue)
442 {
443         uint32_t limit = queue->cons_index + queue->queue_size;
444         uint32_t seed_index = queue->seed_index;
445
446         uint32_t count = 0;
447         uint32_t seed_m = queue->seed_index & queue->queue_mask;
448
449         uint32_t nb = limit - seed_index;
450
451         /* Handle wrap around -- remainder is filled on the next call */
452         if (unlikely(seed_m + nb > queue->queue_size))
453                 nb = queue->queue_size - seed_m;
454
455         struct rte_mbuf **mbufs = &queue->reserve_q[seed_m];
456         int status = rte_pktmbuf_alloc_bulk(queue->mb_pool, mbufs, nb);
457
458         if (unlikely(status != 0)) {
459                 /* Try to recover from lack of mbufs in pool */
460                 status = eth_ark_rx_seed_recovery(queue, &nb, mbufs);
461                 if (unlikely(status != 0)) {
462                         return -1;
463                 }
464         }
465
466         if (ARK_RX_DEBUG) {             /* DEBUG */
467                 while (count != nb) {
468                         struct rte_mbuf *mbuf_init =
469                                 queue->reserve_q[seed_m + count];
470
471                         memset(mbuf_init->buf_addr, -1, 512);
472                         *((uint32_t *)mbuf_init->buf_addr) =
473                                 seed_index + count;
474                         *(uint16_t *)RTE_PTR_ADD(mbuf_init->buf_addr, 4) =
475                                 queue->phys_qid;
476                         count++;
477                 }
478                 count = 0;
479         } /* DEBUG */
480         queue->seed_index += nb;
481
482         /* Duff's device https://en.wikipedia.org/wiki/Duff's_device */
483         switch (nb % 4) {
484         case 0:
485                 while (count != nb) {
486                         queue->paddress_q[seed_m++] =
487                                 (*mbufs++)->buf_iova;
488                         count++;
489                 /* FALLTHROUGH */
490         case 3:
491                 queue->paddress_q[seed_m++] =
492                         (*mbufs++)->buf_iova;
493                 count++;
494                 /* FALLTHROUGH */
495         case 2:
496                 queue->paddress_q[seed_m++] =
497                         (*mbufs++)->buf_iova;
498                 count++;
499                 /* FALLTHROUGH */
500         case 1:
501                 queue->paddress_q[seed_m++] =
502                         (*mbufs++)->buf_iova;
503                 count++;
504                 /* FALLTHROUGH */
505
506                 } /* while (count != nb) */
507         } /* switch */
508
509         return 0;
510 }
511
512 int
513 eth_ark_rx_seed_recovery(struct ark_rx_queue *queue,
514                          uint32_t *pnb,
515                          struct rte_mbuf **mbufs)
516 {
517         int status = -1;
518
519         /* Ignore small allocation failures */
520         if (*pnb <= 64)
521                 return -1;
522
523         *pnb = 64U;
524         status = rte_pktmbuf_alloc_bulk(queue->mb_pool, mbufs, *pnb);
525         if (status != 0) {
526                 PMD_DRV_LOG(ERR,
527                             "ARK: Could not allocate %u mbufs from pool for RX queue %u;"
528                             " %u free buffers remaining in queue\n",
529                             *pnb, queue->queue_index,
530                             queue->seed_index - queue->cons_index);
531         }
532         return status;
533 }
534
535 void
536 eth_ark_rx_dump_queue(struct rte_eth_dev *dev, uint16_t queue_id,
537                       const char *msg)
538 {
539         struct ark_rx_queue *queue;
540
541         queue = dev->data->rx_queues[queue_id];
542
543         ark_ethdev_rx_dump(msg, queue);
544 }
545
546 /* ************************************************************************* */
547 /* Call on device closed no user API, queue is stopped */
548 void
549 eth_ark_dev_rx_queue_release(void *vqueue)
550 {
551         struct ark_rx_queue *queue;
552         uint32_t i;
553
554         queue = (struct ark_rx_queue *)vqueue;
555         if (queue == 0)
556                 return;
557
558         ark_udm_queue_enable(queue->udm, 0);
559         /* Stop the MPU since pointer are going away */
560         ark_mpu_stop(queue->mpu);
561
562         /* Need to clear out mbufs here, dropping packets along the way */
563         eth_ark_rx_queue_drain(queue);
564
565         for (i = 0; i < queue->queue_size; ++i)
566                 rte_pktmbuf_free(queue->reserve_q[i]);
567
568         rte_free(queue->reserve_q);
569         rte_free(queue->paddress_q);
570         rte_free(queue);
571 }
572
573 void
574 eth_rx_queue_stats_get(void *vqueue, struct rte_eth_stats *stats)
575 {
576         struct ark_rx_queue *queue;
577         struct ark_udm_t *udm;
578
579         queue = vqueue;
580         if (queue == 0)
581                 return;
582         udm = queue->udm;
583
584         uint64_t ibytes = ark_udm_bytes(udm);
585         uint64_t ipackets = ark_udm_packets(udm);
586         uint64_t idropped = ark_udm_dropped(queue->udm);
587
588         stats->q_ipackets[queue->queue_index] = ipackets;
589         stats->q_ibytes[queue->queue_index] = ibytes;
590         stats->q_errors[queue->queue_index] = idropped;
591         stats->ipackets += ipackets;
592         stats->ibytes += ibytes;
593         stats->imissed += idropped;
594 }
595
596 void
597 eth_rx_queue_stats_reset(void *vqueue)
598 {
599         struct ark_rx_queue *queue;
600
601         queue = vqueue;
602         if (queue == 0)
603                 return;
604
605         ark_mpu_reset_stats(queue->mpu);
606         ark_udm_queue_stats_reset(queue->udm);
607 }
608
609 void
610 eth_ark_udm_force_close(struct rte_eth_dev *dev)
611 {
612         struct ark_adapter *ark = dev->data->dev_private;
613         struct ark_rx_queue *queue;
614         uint32_t index;
615         uint16_t i;
616
617         if (!ark_udm_is_flushed(ark->udm.v)) {
618                 /* restart the MPUs */
619                 PMD_DRV_LOG(ERR, "ARK: %s UDM not flushed\n", __func__);
620                 for (i = 0; i < dev->data->nb_rx_queues; i++) {
621                         queue = (struct ark_rx_queue *)dev->data->rx_queues[i];
622                         if (queue == 0)
623                                 continue;
624
625                         ark_mpu_start(queue->mpu);
626                         /* Add some buffers */
627                         index = 100000 + queue->seed_index;
628                         ark_mpu_set_producer(queue->mpu, index);
629                 }
630                 /* Wait to allow data to pass */
631                 usleep(100);
632
633                 PMD_DEBUG_LOG(DEBUG, "UDM forced flush attempt, stopped = %d\n",
634                                 ark_udm_is_flushed(ark->udm.v));
635         }
636         ark_udm_reset(ark->udm.v);
637 }
638
639 static void
640 ark_ethdev_rx_dump(const char *name, struct ark_rx_queue *queue)
641 {
642         if (queue == NULL)
643                 return;
644         PMD_DEBUG_LOG(DEBUG, "RX QUEUE %d -- %s", queue->phys_qid, name);
645         PMD_DEBUG_LOG(DEBUG, ARK_SU32 ARK_SU32 ARK_SU32 ARK_SU32 "\n",
646                         "queue_size", queue->queue_size,
647                         "seed_index", queue->seed_index,
648                         "prod_index", queue->prod_index,
649                         "cons_index", queue->cons_index);
650
651         ark_mpu_dump(queue->mpu, name, queue->phys_qid);
652         ark_mpu_dump_setup(queue->mpu, queue->phys_qid);
653         ark_udm_dump(queue->udm, name);
654         ark_udm_dump_setup(queue->udm, queue->phys_qid);
655 }
656
657 /* Only used in debug.
658  * This function is a raw memory dump of a portion of an mbuf's memory
659  * region.  The usual function, rte_pktmbuf_dump() only shows data
660  * with respect to the data_off field.  This function show data
661  * anywhere in the mbuf's buffer.  This is useful for examining
662  * data in the headroom or tailroom portion of an mbuf.
663  */
664 static void
665 dump_mbuf_data(struct rte_mbuf *mbuf, uint16_t lo, uint16_t hi)
666 {
667         uint16_t i, j;
668
669         PMD_DRV_LOG(INFO, " MBUF: %p len %d, off: %d, seq: %" PRIU32 "\n", mbuf,
670                 mbuf->pkt_len, mbuf->data_off, mbuf->seqn);
671         for (i = lo; i < hi; i += 16) {
672                 uint8_t *dp = RTE_PTR_ADD(mbuf->buf_addr, i);
673
674                 PMD_DRV_LOG(INFO, "  %6d:  ", i);
675                 for (j = 0; j < 16; j++)
676                         PMD_DRV_LOG(INFO, " %02x", dp[j]);
677
678                 PMD_DRV_LOG(INFO, "\n");
679         }
680 }