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37 #include <rte_bitmap.h>
38 #include <rte_byteorder.h>
39 #include <rte_malloc.h>
40 #include <rte_memory.h>
44 #include "bnxt_ring.h"
47 #include "hsi_struct_def_dpdk.h"
53 static inline struct rte_mbuf *__bnxt_alloc_rx_data(struct rte_mempool *mb)
55 struct rte_mbuf *data;
57 data = rte_mbuf_raw_alloc(mb);
62 static inline int bnxt_alloc_rx_data(struct bnxt_rx_queue *rxq,
63 struct bnxt_rx_ring_info *rxr,
66 struct rx_prod_pkt_bd *rxbd = &rxr->rx_desc_ring[prod];
67 struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[prod];
68 struct rte_mbuf *data;
70 data = __bnxt_alloc_rx_data(rxq->mb_pool);
76 rxbd->addr = rte_cpu_to_le_64(RTE_MBUF_DATA_DMA_ADDR(rx_buf->mbuf));
81 static inline int bnxt_alloc_ag_data(struct bnxt_rx_queue *rxq,
82 struct bnxt_rx_ring_info *rxr,
85 struct rx_prod_pkt_bd *rxbd = &rxr->ag_desc_ring[prod];
86 struct bnxt_sw_rx_bd *rx_buf = &rxr->ag_buf_ring[prod];
87 struct rte_mbuf *data;
89 data = __bnxt_alloc_rx_data(rxq->mb_pool);
94 RTE_LOG(ERR, PMD, "Jumbo Frame. rxbd is NULL\n");
96 RTE_LOG(ERR, PMD, "Jumbo Frame. rx_buf is NULL\n");
101 rxbd->addr = rte_cpu_to_le_64(RTE_MBUF_DATA_DMA_ADDR(rx_buf->mbuf));
106 static inline void bnxt_reuse_rx_mbuf(struct bnxt_rx_ring_info *rxr,
107 struct rte_mbuf *mbuf)
109 uint16_t prod = RING_NEXT(rxr->rx_ring_struct, rxr->rx_prod);
110 struct bnxt_sw_rx_bd *prod_rx_buf;
111 struct rx_prod_pkt_bd *prod_bd;
113 prod_rx_buf = &rxr->rx_buf_ring[prod];
115 RTE_ASSERT(prod_rx_buf->mbuf == NULL);
116 RTE_ASSERT(mbuf != NULL);
118 prod_rx_buf->mbuf = mbuf;
120 prod_bd = &rxr->rx_desc_ring[prod];
122 prod_bd->addr = rte_cpu_to_le_64(RTE_MBUF_DATA_DMA_ADDR(mbuf));
128 static void bnxt_reuse_ag_mbuf(struct bnxt_rx_ring_info *rxr, uint16_t cons,
129 struct rte_mbuf *mbuf)
131 uint16_t prod = rxr->ag_prod;
132 struct bnxt_sw_rx_bd *prod_rx_buf;
133 struct rx_prod_pkt_bd *prod_bd, *cons_bd;
135 prod_rx_buf = &rxr->ag_buf_ring[prod];
137 prod_rx_buf->mbuf = mbuf;
139 prod_bd = &rxr->ag_desc_ring[prod];
140 cons_bd = &rxr->ag_desc_ring[cons];
142 prod_bd->addr = cons_bd->addr;
147 struct rte_mbuf *bnxt_consume_rx_buf(struct bnxt_rx_ring_info *rxr,
150 struct bnxt_sw_rx_bd *cons_rx_buf;
151 struct rte_mbuf *mbuf;
153 cons_rx_buf = &rxr->rx_buf_ring[cons];
154 RTE_ASSERT(cons_rx_buf->mbuf != NULL);
155 mbuf = cons_rx_buf->mbuf;
156 cons_rx_buf->mbuf = NULL;
160 static void bnxt_tpa_start(struct bnxt_rx_queue *rxq,
161 struct rx_tpa_start_cmpl *tpa_start,
162 struct rx_tpa_start_cmpl_hi *tpa_start1)
164 struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
165 uint8_t agg_id = rte_le_to_cpu_32(tpa_start->agg_id &
166 RX_TPA_START_CMPL_AGG_ID_MASK) >> RX_TPA_START_CMPL_AGG_ID_SFT;
168 struct bnxt_tpa_info *tpa_info;
169 struct rte_mbuf *mbuf;
171 data_cons = tpa_start->opaque;
172 tpa_info = &rxr->tpa_info[agg_id];
174 mbuf = bnxt_consume_rx_buf(rxr, data_cons);
176 bnxt_reuse_rx_mbuf(rxr, tpa_info->mbuf);
178 tpa_info->mbuf = mbuf;
179 tpa_info->len = rte_le_to_cpu_32(tpa_start->len);
183 mbuf->pkt_len = rte_le_to_cpu_32(tpa_start->len);
184 mbuf->data_len = mbuf->pkt_len;
185 mbuf->port = rxq->port_id;
186 mbuf->ol_flags = PKT_RX_LRO;
187 if (likely(tpa_start->flags_type &
188 rte_cpu_to_le_32(RX_TPA_START_CMPL_FLAGS_RSS_VALID))) {
189 mbuf->hash.rss = rte_le_to_cpu_32(tpa_start->rss_hash);
190 mbuf->ol_flags |= PKT_RX_RSS_HASH;
192 mbuf->hash.fdir.id = rte_le_to_cpu_16(tpa_start1->cfa_code);
193 mbuf->ol_flags |= PKT_RX_FDIR | PKT_RX_FDIR_ID;
195 if (tpa_start1->flags2 &
196 rte_cpu_to_le_32(RX_TPA_START_CMPL_FLAGS2_META_FORMAT_VLAN)) {
197 mbuf->vlan_tci = rte_le_to_cpu_32(tpa_start1->metadata);
198 mbuf->ol_flags |= PKT_RX_VLAN_PKT;
200 if (likely(tpa_start1->flags2 &
201 rte_cpu_to_le_32(RX_TPA_START_CMPL_FLAGS2_L4_CS_CALC)))
202 mbuf->ol_flags |= PKT_RX_L4_CKSUM_GOOD;
204 /* recycle next mbuf */
205 data_cons = RING_NEXT(rxr->rx_ring_struct, data_cons);
206 bnxt_reuse_rx_mbuf(rxr, bnxt_consume_rx_buf(rxr, data_cons));
209 static int bnxt_agg_bufs_valid(struct bnxt_cp_ring_info *cpr,
210 uint8_t agg_bufs, uint32_t raw_cp_cons)
212 uint16_t last_cp_cons;
213 struct rx_pkt_cmpl *agg_cmpl;
215 raw_cp_cons = ADV_RAW_CMP(raw_cp_cons, agg_bufs);
216 last_cp_cons = RING_CMP(cpr->cp_ring_struct, raw_cp_cons);
217 agg_cmpl = (struct rx_pkt_cmpl *)&cpr->cp_desc_ring[last_cp_cons];
218 return CMP_VALID(agg_cmpl, raw_cp_cons, cpr->cp_ring_struct);
221 /* TPA consume agg buffer out of order, allocate connected data only */
222 static int bnxt_prod_ag_mbuf(struct bnxt_rx_queue *rxq)
224 struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
225 uint16_t next = RING_NEXT(rxr->ag_ring_struct, rxr->ag_prod);
227 /* TODO batch allocation for better performance */
228 while (rte_bitmap_get(rxr->ag_bitmap, next)) {
229 if (unlikely(bnxt_alloc_ag_data(rxq, rxr, next))) {
231 "agg mbuf alloc failed: prod=0x%x\n", next);
234 rte_bitmap_clear(rxr->ag_bitmap, next);
236 next = RING_NEXT(rxr->ag_ring_struct, next);
242 static int bnxt_rx_pages(struct bnxt_rx_queue *rxq,
243 struct rte_mbuf *mbuf, uint32_t *tmp_raw_cons,
246 struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
247 struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
249 uint16_t cp_cons, ag_cons;
250 struct rx_pkt_cmpl *rxcmp;
251 struct rte_mbuf *last = mbuf;
253 for (i = 0; i < agg_buf; i++) {
254 struct bnxt_sw_rx_bd *ag_buf;
255 struct rte_mbuf *ag_mbuf;
256 *tmp_raw_cons = NEXT_RAW_CMP(*tmp_raw_cons);
257 cp_cons = RING_CMP(cpr->cp_ring_struct, *tmp_raw_cons);
258 rxcmp = (struct rx_pkt_cmpl *)
259 &cpr->cp_desc_ring[cp_cons];
262 bnxt_dump_cmpl(cp_cons, rxcmp);
265 ag_cons = rxcmp->opaque;
266 RTE_ASSERT(ag_cons <= rxr->ag_ring_struct->ring_mask);
267 ag_buf = &rxr->ag_buf_ring[ag_cons];
268 ag_mbuf = ag_buf->mbuf;
269 RTE_ASSERT(ag_mbuf != NULL);
271 ag_mbuf->data_len = rte_le_to_cpu_16(rxcmp->len);
274 mbuf->pkt_len += ag_mbuf->data_len;
276 last->next = ag_mbuf;
282 * As aggregation buffer consumed out of order in TPA module,
283 * use bitmap to track freed slots to be allocated and notified
286 rte_bitmap_set(rxr->ag_bitmap, ag_cons);
288 bnxt_prod_ag_mbuf(rxq);
292 static inline struct rte_mbuf *bnxt_tpa_end(
293 struct bnxt_rx_queue *rxq,
294 uint32_t *raw_cp_cons,
295 struct rx_tpa_end_cmpl *tpa_end,
296 struct rx_tpa_end_cmpl_hi *tpa_end1 __rte_unused)
298 struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
299 struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
300 uint8_t agg_id = (tpa_end->agg_id & RX_TPA_END_CMPL_AGG_ID_MASK)
301 >> RX_TPA_END_CMPL_AGG_ID_SFT;
302 struct rte_mbuf *mbuf;
304 struct bnxt_tpa_info *tpa_info;
306 tpa_info = &rxr->tpa_info[agg_id];
307 mbuf = tpa_info->mbuf;
308 RTE_ASSERT(mbuf != NULL);
311 agg_bufs = (rte_le_to_cpu_32(tpa_end->agg_bufs_v1) &
312 RX_TPA_END_CMPL_AGG_BUFS_MASK) >> RX_TPA_END_CMPL_AGG_BUFS_SFT;
314 if (!bnxt_agg_bufs_valid(cpr, agg_bufs, *raw_cp_cons))
316 bnxt_rx_pages(rxq, mbuf, raw_cp_cons, agg_bufs);
318 mbuf->l4_len = tpa_end->payload_offset;
320 struct rte_mbuf *new_data = __bnxt_alloc_rx_data(rxq->mb_pool);
321 RTE_ASSERT(new_data != NULL);
324 tpa_info->mbuf = new_data;
329 static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
330 struct bnxt_rx_queue *rxq, uint32_t *raw_cons)
332 struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
333 struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
334 struct rx_pkt_cmpl *rxcmp;
335 struct rx_pkt_cmpl_hi *rxcmp1;
336 uint32_t tmp_raw_cons = *raw_cons;
337 uint16_t cons, prod, cp_cons =
338 RING_CMP(cpr->cp_ring_struct, tmp_raw_cons);
342 struct rte_mbuf *mbuf;
347 rxcmp = (struct rx_pkt_cmpl *)
348 &cpr->cp_desc_ring[cp_cons];
350 tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons);
351 cp_cons = RING_CMP(cpr->cp_ring_struct, tmp_raw_cons);
352 rxcmp1 = (struct rx_pkt_cmpl_hi *)&cpr->cp_desc_ring[cp_cons];
354 if (!CMP_VALID(rxcmp1, tmp_raw_cons, cpr->cp_ring_struct))
357 cmp_type = CMP_TYPE(rxcmp);
358 if (cmp_type == RX_PKT_CMPL_TYPE_RX_L2_TPA_START) {
359 bnxt_tpa_start(rxq, (struct rx_tpa_start_cmpl *)rxcmp,
360 (struct rx_tpa_start_cmpl_hi *)rxcmp1);
361 rc = -EINVAL; /* Continue w/o new mbuf */
363 } else if (cmp_type == RX_PKT_CMPL_TYPE_RX_L2_TPA_END) {
364 mbuf = bnxt_tpa_end(rxq, &tmp_raw_cons,
365 (struct rx_tpa_end_cmpl *)rxcmp,
366 (struct rx_tpa_end_cmpl_hi *)rxcmp1);
371 } else if (cmp_type != 0x11) {
376 agg_buf = (rxcmp->agg_bufs_v1 & RX_PKT_CMPL_AGG_BUFS_MASK)
377 >> RX_PKT_CMPL_AGG_BUFS_SFT;
378 if (agg_buf && !bnxt_agg_bufs_valid(cpr, agg_buf, tmp_raw_cons))
383 cons = rxcmp->opaque;
384 mbuf = bnxt_consume_rx_buf(rxr, cons);
392 mbuf->pkt_len = rxcmp->len;
393 mbuf->data_len = mbuf->pkt_len;
394 mbuf->port = rxq->port_id;
396 if (rxcmp->flags_type & RX_PKT_CMPL_FLAGS_RSS_VALID) {
397 mbuf->hash.rss = rxcmp->rss_hash;
398 mbuf->ol_flags |= PKT_RX_RSS_HASH;
400 mbuf->hash.fdir.id = rxcmp1->cfa_code;
401 mbuf->ol_flags |= PKT_RX_FDIR | PKT_RX_FDIR_ID;
405 bnxt_rx_pages(rxq, mbuf, &tmp_raw_cons, agg_buf);
407 if (rxcmp1->flags2 & RX_PKT_CMPL_FLAGS2_META_FORMAT_VLAN) {
408 mbuf->vlan_tci = rxcmp1->metadata &
409 (RX_PKT_CMPL_METADATA_VID_MASK |
410 RX_PKT_CMPL_METADATA_DE |
411 RX_PKT_CMPL_METADATA_PRI_MASK);
412 mbuf->ol_flags |= PKT_RX_VLAN_PKT;
416 if (rxcmp1->errors_v2 & RX_CMP_L2_ERRORS) {
417 /* Re-install the mbuf back to the rx ring */
418 bnxt_reuse_rx_mbuf(rxr, cons, mbuf);
420 bnxt_reuse_ag_mbuf(rxr, ag_cons, mbuf);
427 * TODO: Redesign this....
428 * If the allocation fails, the packet does not get received.
429 * Simply returning this will result in slowly falling behind
430 * on the producer ring buffers.
431 * Instead, "filling up" the producer just before ringing the
432 * doorbell could be a better solution since it will let the
433 * producer ring starve until memory is available again pushing
434 * the drops into hardware and getting them out of the driver
435 * allowing recovery to a full producer ring.
437 * This could also help with cache usage by preventing per-packet
438 * calls in favour of a tight loop with the same function being called
441 prod = RING_NEXT(rxr->rx_ring_struct, prod);
442 if (bnxt_alloc_rx_data(rxq, rxr, prod)) {
443 RTE_LOG(ERR, PMD, "mbuf alloc failed with prod=0x%x\n", prod);
448 * All MBUFs are allocated with the same size under DPDK,
449 * no optimization for rx_copy_thresh
456 *raw_cons = tmp_raw_cons;
461 uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
464 struct bnxt_rx_queue *rxq = rx_queue;
465 struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
466 struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
467 uint32_t raw_cons = cpr->cp_raw_cons;
470 struct rx_pkt_cmpl *rxcmp;
471 uint16_t prod = rxr->rx_prod;
472 uint16_t ag_prod = rxr->ag_prod;
474 /* Handle RX burst request */
478 cons = RING_CMP(cpr->cp_ring_struct, raw_cons);
479 rte_prefetch0(&cpr->cp_desc_ring[cons]);
480 rxcmp = (struct rx_pkt_cmpl *)&cpr->cp_desc_ring[cons];
482 if (!CMP_VALID(rxcmp, raw_cons, cpr->cp_ring_struct))
485 /* TODO: Avoid magic numbers... */
486 if ((CMP_TYPE(rxcmp) & 0x30) == 0x10) {
487 rc = bnxt_rx_pkt(&rx_pkts[nb_rx_pkts], rxq, &raw_cons);
490 if (rc == -EBUSY) /* partial completion */
493 raw_cons = NEXT_RAW_CMP(raw_cons);
494 if (nb_rx_pkts == nb_pkts)
498 cpr->cp_raw_cons = raw_cons;
499 if (prod == rxr->rx_prod && ag_prod == rxr->ag_prod) {
501 * For PMD, there is no need to keep on pushing to REARM
502 * the doorbell if there are no new completions
507 B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
508 B_RX_DB(rxr->rx_doorbell, rxr->rx_prod);
509 /* Ring the AGG ring DB */
510 B_RX_DB(rxr->ag_doorbell, rxr->ag_prod);
514 void bnxt_free_rx_rings(struct bnxt *bp)
518 for (i = 0; i < (int)bp->rx_nr_rings; i++) {
519 struct bnxt_rx_queue *rxq = bp->rx_queues[i];
524 bnxt_free_ring(rxq->rx_ring->rx_ring_struct);
525 rte_free(rxq->rx_ring->rx_ring_struct);
527 /* Free the Aggregator ring */
528 bnxt_free_ring(rxq->rx_ring->ag_ring_struct);
529 rte_free(rxq->rx_ring->ag_ring_struct);
530 rxq->rx_ring->ag_ring_struct = NULL;
532 rte_free(rxq->rx_ring);
534 bnxt_free_ring(rxq->cp_ring->cp_ring_struct);
535 rte_free(rxq->cp_ring->cp_ring_struct);
536 rte_free(rxq->cp_ring);
539 bp->rx_queues[i] = NULL;
543 int bnxt_init_rx_ring_struct(struct bnxt_rx_queue *rxq, unsigned int socket_id)
545 struct bnxt_cp_ring_info *cpr;
546 struct bnxt_rx_ring_info *rxr;
547 struct bnxt_ring *ring;
549 rxq->rx_buf_use_size = BNXT_MAX_MTU + ETHER_HDR_LEN + ETHER_CRC_LEN +
551 rxq->rx_buf_size = rxq->rx_buf_use_size + sizeof(struct rte_mbuf);
553 rxr = rte_zmalloc_socket("bnxt_rx_ring",
554 sizeof(struct bnxt_rx_ring_info),
555 RTE_CACHE_LINE_SIZE, socket_id);
560 ring = rte_zmalloc_socket("bnxt_rx_ring_struct",
561 sizeof(struct bnxt_ring),
562 RTE_CACHE_LINE_SIZE, socket_id);
565 rxr->rx_ring_struct = ring;
566 ring->ring_size = rte_align32pow2(rxq->nb_rx_desc);
567 ring->ring_mask = ring->ring_size - 1;
568 ring->bd = (void *)rxr->rx_desc_ring;
569 ring->bd_dma = rxr->rx_desc_mapping;
570 ring->vmem_size = ring->ring_size * sizeof(struct bnxt_sw_rx_bd);
571 ring->vmem = (void **)&rxr->rx_buf_ring;
573 cpr = rte_zmalloc_socket("bnxt_rx_ring",
574 sizeof(struct bnxt_cp_ring_info),
575 RTE_CACHE_LINE_SIZE, socket_id);
580 ring = rte_zmalloc_socket("bnxt_rx_ring_struct",
581 sizeof(struct bnxt_ring),
582 RTE_CACHE_LINE_SIZE, socket_id);
585 cpr->cp_ring_struct = ring;
586 ring->ring_size = rte_align32pow2(rxr->rx_ring_struct->ring_size *
587 (2 + AGG_RING_SIZE_FACTOR));
588 ring->ring_mask = ring->ring_size - 1;
589 ring->bd = (void *)cpr->cp_desc_ring;
590 ring->bd_dma = cpr->cp_desc_mapping;
594 /* Allocate Aggregator rings */
595 ring = rte_zmalloc_socket("bnxt_rx_ring_struct",
596 sizeof(struct bnxt_ring),
597 RTE_CACHE_LINE_SIZE, socket_id);
600 rxr->ag_ring_struct = ring;
601 ring->ring_size = rte_align32pow2(rxq->nb_rx_desc *
602 AGG_RING_SIZE_FACTOR);
603 ring->ring_mask = ring->ring_size - 1;
604 ring->bd = (void *)rxr->ag_desc_ring;
605 ring->bd_dma = rxr->ag_desc_mapping;
606 ring->vmem_size = ring->ring_size * sizeof(struct bnxt_sw_rx_bd);
607 ring->vmem = (void **)&rxr->ag_buf_ring;
612 static void bnxt_init_rxbds(struct bnxt_ring *ring, uint32_t type,
616 struct rx_prod_pkt_bd *rx_bd_ring = (struct rx_prod_pkt_bd *)ring->bd;
620 for (j = 0; j < ring->ring_size; j++) {
621 rx_bd_ring[j].flags_type = rte_cpu_to_le_16(type);
622 rx_bd_ring[j].len = rte_cpu_to_le_16(len);
623 rx_bd_ring[j].opaque = j;
627 int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq)
629 struct bnxt_rx_ring_info *rxr;
630 struct bnxt_ring *ring;
635 size = rte_pktmbuf_data_room_size(rxq->mb_pool) - RTE_PKTMBUF_HEADROOM;
636 if (rxq->rx_buf_use_size <= size)
637 size = rxq->rx_buf_use_size;
639 type = RX_PROD_PKT_BD_TYPE_RX_PROD_PKT;
642 ring = rxr->rx_ring_struct;
643 bnxt_init_rxbds(ring, type, size);
646 for (i = 0; i < ring->ring_size; i++) {
647 if (bnxt_alloc_rx_data(rxq, rxr, prod) != 0) {
648 RTE_LOG(WARNING, PMD,
649 "init'ed rx ring %d with %d/%d mbufs only\n",
650 rxq->queue_id, i, ring->ring_size);
654 prod = RING_NEXT(rxr->rx_ring_struct, prod);
656 RTE_LOG(DEBUG, PMD, "%s\n", __func__);
658 ring = rxr->ag_ring_struct;
659 type = RX_PROD_AGG_BD_TYPE_RX_PROD_AGG;
660 bnxt_init_rxbds(ring, type, size);
663 for (i = 0; i < ring->ring_size; i++) {
664 if (bnxt_alloc_ag_data(rxq, rxr, prod) != 0) {
665 RTE_LOG(WARNING, PMD,
666 "init'ed AG ring %d with %d/%d mbufs only\n",
667 rxq->queue_id, i, ring->ring_size);
671 prod = RING_NEXT(rxr->ag_ring_struct, prod);
673 RTE_LOG(DEBUG, PMD, "%s AGG Done!\n", __func__);
676 for (i = 0; i < BNXT_TPA_MAX; i++) {
677 rxr->tpa_info[i].mbuf =
678 __bnxt_alloc_rx_data(rxq->mb_pool);
679 if (!rxr->tpa_info[i].mbuf)
683 RTE_LOG(DEBUG, PMD, "%s TPA alloc Done!\n", __func__);