1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright (c) 2016 - 2018 Cavium Inc.
10 static inline int qede_alloc_rx_buffer(struct qede_rx_queue *rxq)
12 struct rte_mbuf *new_mb = NULL;
13 struct eth_rx_bd *rx_bd;
15 uint16_t idx = rxq->sw_rx_prod & NUM_RX_BDS(rxq);
17 new_mb = rte_mbuf_raw_alloc(rxq->mb_pool);
18 if (unlikely(!new_mb)) {
20 "Failed to allocate rx buffer "
21 "sw_rx_prod %u sw_rx_cons %u mp entries %u free %u",
22 idx, rxq->sw_rx_cons & NUM_RX_BDS(rxq),
23 rte_mempool_avail_count(rxq->mb_pool),
24 rte_mempool_in_use_count(rxq->mb_pool));
27 rxq->sw_rx_ring[idx].mbuf = new_mb;
28 rxq->sw_rx_ring[idx].page_offset = 0;
29 mapping = rte_mbuf_data_iova_default(new_mb);
30 /* Advance PROD and get BD pointer */
31 rx_bd = (struct eth_rx_bd *)ecore_chain_produce(&rxq->rx_bd_ring);
32 rx_bd->addr.hi = rte_cpu_to_le_32(U64_HI(mapping));
33 rx_bd->addr.lo = rte_cpu_to_le_32(U64_LO(mapping));
38 #define QEDE_MAX_BULK_ALLOC_COUNT 512
40 static inline int qede_alloc_rx_bulk_mbufs(struct qede_rx_queue *rxq, int count)
42 void *obj_p[QEDE_MAX_BULK_ALLOC_COUNT] __rte_cache_aligned;
43 struct rte_mbuf *mbuf = NULL;
44 struct eth_rx_bd *rx_bd;
49 if (count > QEDE_MAX_BULK_ALLOC_COUNT)
50 count = QEDE_MAX_BULK_ALLOC_COUNT;
52 ret = rte_mempool_get_bulk(rxq->mb_pool, obj_p, count);
55 "Failed to allocate %d rx buffers "
56 "sw_rx_prod %u sw_rx_cons %u mp entries %u free %u",
58 rxq->sw_rx_prod & NUM_RX_BDS(rxq),
59 rxq->sw_rx_cons & NUM_RX_BDS(rxq),
60 rte_mempool_avail_count(rxq->mb_pool),
61 rte_mempool_in_use_count(rxq->mb_pool));
65 for (i = 0; i < count; i++) {
67 if (likely(i < count - 1))
68 rte_prefetch0(obj_p[i + 1]);
70 idx = rxq->sw_rx_prod & NUM_RX_BDS(rxq);
71 rxq->sw_rx_ring[idx].mbuf = mbuf;
72 rxq->sw_rx_ring[idx].page_offset = 0;
73 mapping = rte_mbuf_data_iova_default(mbuf);
74 rx_bd = (struct eth_rx_bd *)
75 ecore_chain_produce(&rxq->rx_bd_ring);
76 rx_bd->addr.hi = rte_cpu_to_le_32(U64_HI(mapping));
77 rx_bd->addr.lo = rte_cpu_to_le_32(U64_LO(mapping));
84 /* Criterias for calculating Rx buffer size -
85 * 1) rx_buf_size should not exceed the size of mbuf
86 * 2) In scattered_rx mode - minimum rx_buf_size should be
87 * (MTU + Maximum L2 Header Size + 2) / ETH_RX_MAX_BUFF_PER_PKT
88 * 3) In regular mode - minimum rx_buf_size should be
89 * (MTU + Maximum L2 Header Size + 2)
90 * In above cases +2 corrosponds to 2 bytes padding in front of L2
92 * 4) rx_buf_size should be cacheline-size aligned. So considering
93 * criteria 1, we need to adjust the size to floor instead of ceil,
94 * so that we don't exceed mbuf size while ceiling rx_buf_size.
97 qede_calc_rx_buf_size(struct rte_eth_dev *dev, uint16_t mbufsz,
98 uint16_t max_frame_size)
100 struct qede_dev *qdev = QEDE_INIT_QDEV(dev);
101 struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
104 if (dev->data->scattered_rx) {
105 /* per HW limitation, only ETH_RX_MAX_BUFF_PER_PKT number of
106 * bufferes can be used for single packet. So need to make sure
107 * mbuf size is sufficient enough for this.
109 if ((mbufsz * ETH_RX_MAX_BUFF_PER_PKT) <
110 (max_frame_size + QEDE_ETH_OVERHEAD)) {
111 DP_ERR(edev, "mbuf %d size is not enough to hold max fragments (%d) for max rx packet length (%d)\n",
112 mbufsz, ETH_RX_MAX_BUFF_PER_PKT, max_frame_size);
116 rx_buf_size = RTE_MAX(mbufsz,
117 (max_frame_size + QEDE_ETH_OVERHEAD) /
118 ETH_RX_MAX_BUFF_PER_PKT);
120 rx_buf_size = max_frame_size + QEDE_ETH_OVERHEAD;
123 /* Align to cache-line size if needed */
124 return QEDE_FLOOR_TO_CACHE_LINE_SIZE(rx_buf_size);
127 static struct qede_rx_queue *
128 qede_alloc_rx_queue_mem(struct rte_eth_dev *dev,
131 unsigned int socket_id,
132 struct rte_mempool *mp,
135 struct qede_dev *qdev = QEDE_INIT_QDEV(dev);
136 struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
137 struct qede_rx_queue *rxq;
141 /* First allocate the rx queue data structure */
142 rxq = rte_zmalloc_socket("qede_rx_queue", sizeof(struct qede_rx_queue),
143 RTE_CACHE_LINE_SIZE, socket_id);
146 DP_ERR(edev, "Unable to allocate memory for rxq on socket %u",
153 rxq->nb_rx_desc = nb_desc;
154 rxq->queue_id = queue_idx;
155 rxq->port_id = dev->data->port_id;
158 rxq->rx_buf_size = bufsz;
160 DP_INFO(edev, "mtu %u mbufsz %u bd_max_bytes %u scatter_mode %d\n",
161 qdev->mtu, bufsz, rxq->rx_buf_size, dev->data->scattered_rx);
163 /* Allocate the parallel driver ring for Rx buffers */
164 size = sizeof(*rxq->sw_rx_ring) * rxq->nb_rx_desc;
165 rxq->sw_rx_ring = rte_zmalloc_socket("sw_rx_ring", size,
166 RTE_CACHE_LINE_SIZE, socket_id);
167 if (!rxq->sw_rx_ring) {
168 DP_ERR(edev, "Memory allocation fails for sw_rx_ring on"
169 " socket %u\n", socket_id);
174 /* Allocate FW Rx ring */
175 rc = qdev->ops->common->chain_alloc(edev,
176 ECORE_CHAIN_USE_TO_CONSUME_PRODUCE,
177 ECORE_CHAIN_MODE_NEXT_PTR,
178 ECORE_CHAIN_CNT_TYPE_U16,
180 sizeof(struct eth_rx_bd),
184 if (rc != ECORE_SUCCESS) {
185 DP_ERR(edev, "Memory allocation fails for RX BD ring"
186 " on socket %u\n", socket_id);
187 rte_free(rxq->sw_rx_ring);
192 /* Allocate FW completion ring */
193 rc = qdev->ops->common->chain_alloc(edev,
194 ECORE_CHAIN_USE_TO_CONSUME,
195 ECORE_CHAIN_MODE_PBL,
196 ECORE_CHAIN_CNT_TYPE_U16,
198 sizeof(union eth_rx_cqe),
202 if (rc != ECORE_SUCCESS) {
203 DP_ERR(edev, "Memory allocation fails for RX CQE ring"
204 " on socket %u\n", socket_id);
205 qdev->ops->common->chain_free(edev, &rxq->rx_bd_ring);
206 rte_free(rxq->sw_rx_ring);
215 qede_rx_queue_setup(struct rte_eth_dev *dev, uint16_t qid,
216 uint16_t nb_desc, unsigned int socket_id,
217 __rte_unused const struct rte_eth_rxconf *rx_conf,
218 struct rte_mempool *mp)
220 struct qede_dev *qdev = QEDE_INIT_QDEV(dev);
221 struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
222 struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
223 struct qede_rx_queue *rxq;
224 uint16_t max_rx_pkt_len;
228 PMD_INIT_FUNC_TRACE(edev);
230 /* Note: Ring size/align is controlled by struct rte_eth_desc_lim */
231 if (!rte_is_power_of_2(nb_desc)) {
232 DP_ERR(edev, "Ring size %u is not power of 2\n",
237 /* Free memory prior to re-allocation if needed... */
238 if (dev->data->rx_queues[qid] != NULL) {
239 qede_rx_queue_release(dev->data->rx_queues[qid]);
240 dev->data->rx_queues[qid] = NULL;
243 max_rx_pkt_len = (uint16_t)rxmode->max_rx_pkt_len;
245 /* Fix up RX buffer size */
246 bufsz = (uint16_t)rte_pktmbuf_data_room_size(mp) - RTE_PKTMBUF_HEADROOM;
247 /* cache align the mbuf size to simplfy rx_buf_size calculation */
248 bufsz = QEDE_FLOOR_TO_CACHE_LINE_SIZE(bufsz);
249 if ((rxmode->offloads & DEV_RX_OFFLOAD_SCATTER) ||
250 (max_rx_pkt_len + QEDE_ETH_OVERHEAD) > bufsz) {
251 if (!dev->data->scattered_rx) {
252 DP_INFO(edev, "Forcing scatter-gather mode\n");
253 dev->data->scattered_rx = 1;
257 rc = qede_calc_rx_buf_size(dev, bufsz, max_rx_pkt_len);
263 if (ECORE_IS_CMT(edev)) {
264 rxq = qede_alloc_rx_queue_mem(dev, qid * 2, nb_desc,
265 socket_id, mp, bufsz);
269 qdev->fp_array[qid * 2].rxq = rxq;
270 rxq = qede_alloc_rx_queue_mem(dev, qid * 2 + 1, nb_desc,
271 socket_id, mp, bufsz);
275 qdev->fp_array[qid * 2 + 1].rxq = rxq;
276 /* provide per engine fp struct as rx queue */
277 dev->data->rx_queues[qid] = &qdev->fp_array_cmt[qid];
279 rxq = qede_alloc_rx_queue_mem(dev, qid, nb_desc,
280 socket_id, mp, bufsz);
284 dev->data->rx_queues[qid] = rxq;
285 qdev->fp_array[qid].rxq = rxq;
288 DP_INFO(edev, "rxq %d num_desc %u rx_buf_size=%u socket %u\n",
289 qid, nb_desc, rxq->rx_buf_size, socket_id);
295 qede_rx_queue_reset(__rte_unused struct qede_dev *qdev,
296 struct qede_rx_queue *rxq)
298 DP_INFO(&qdev->edev, "Reset RX queue %u\n", rxq->queue_id);
299 ecore_chain_reset(&rxq->rx_bd_ring);
300 ecore_chain_reset(&rxq->rx_comp_ring);
303 *rxq->hw_cons_ptr = 0;
306 static void qede_rx_queue_release_mbufs(struct qede_rx_queue *rxq)
310 if (rxq->sw_rx_ring) {
311 for (i = 0; i < rxq->nb_rx_desc; i++) {
312 if (rxq->sw_rx_ring[i].mbuf) {
313 rte_pktmbuf_free(rxq->sw_rx_ring[i].mbuf);
314 rxq->sw_rx_ring[i].mbuf = NULL;
320 static void _qede_rx_queue_release(struct qede_dev *qdev,
321 struct ecore_dev *edev,
322 struct qede_rx_queue *rxq)
324 qede_rx_queue_release_mbufs(rxq);
325 qdev->ops->common->chain_free(edev, &rxq->rx_bd_ring);
326 qdev->ops->common->chain_free(edev, &rxq->rx_comp_ring);
327 rte_free(rxq->sw_rx_ring);
331 void qede_rx_queue_release(void *rx_queue)
333 struct qede_rx_queue *rxq = rx_queue;
334 struct qede_fastpath_cmt *fp_cmt;
335 struct qede_dev *qdev;
336 struct ecore_dev *edev;
340 edev = QEDE_INIT_EDEV(qdev);
341 PMD_INIT_FUNC_TRACE(edev);
342 if (ECORE_IS_CMT(edev)) {
344 _qede_rx_queue_release(qdev, edev, fp_cmt->fp0->rxq);
345 _qede_rx_queue_release(qdev, edev, fp_cmt->fp1->rxq);
347 _qede_rx_queue_release(qdev, edev, rxq);
352 /* Stops a given RX queue in the HW */
353 static int qede_rx_queue_stop(struct rte_eth_dev *eth_dev, uint16_t rx_queue_id)
355 struct qede_dev *qdev = QEDE_INIT_QDEV(eth_dev);
356 struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
357 struct ecore_hwfn *p_hwfn;
358 struct qede_rx_queue *rxq;
362 if (rx_queue_id < qdev->num_rx_queues) {
363 rxq = qdev->fp_array[rx_queue_id].rxq;
364 hwfn_index = rx_queue_id % edev->num_hwfns;
365 p_hwfn = &edev->hwfns[hwfn_index];
366 rc = ecore_eth_rx_queue_stop(p_hwfn, rxq->handle,
368 if (rc != ECORE_SUCCESS) {
369 DP_ERR(edev, "RX queue %u stop fails\n", rx_queue_id);
372 qede_rx_queue_release_mbufs(rxq);
373 qede_rx_queue_reset(qdev, rxq);
374 eth_dev->data->rx_queue_state[rx_queue_id] =
375 RTE_ETH_QUEUE_STATE_STOPPED;
376 DP_INFO(edev, "RX queue %u stopped\n", rx_queue_id);
378 DP_ERR(edev, "RX queue %u is not in range\n", rx_queue_id);
385 static struct qede_tx_queue *
386 qede_alloc_tx_queue_mem(struct rte_eth_dev *dev,
389 unsigned int socket_id,
390 const struct rte_eth_txconf *tx_conf)
392 struct qede_dev *qdev = dev->data->dev_private;
393 struct ecore_dev *edev = &qdev->edev;
394 struct qede_tx_queue *txq;
397 txq = rte_zmalloc_socket("qede_tx_queue", sizeof(struct qede_tx_queue),
398 RTE_CACHE_LINE_SIZE, socket_id);
402 "Unable to allocate memory for txq on socket %u",
407 txq->nb_tx_desc = nb_desc;
409 txq->port_id = dev->data->port_id;
411 rc = qdev->ops->common->chain_alloc(edev,
412 ECORE_CHAIN_USE_TO_CONSUME_PRODUCE,
413 ECORE_CHAIN_MODE_PBL,
414 ECORE_CHAIN_CNT_TYPE_U16,
416 sizeof(union eth_tx_bd_types),
419 if (rc != ECORE_SUCCESS) {
421 "Unable to allocate memory for txbd ring on socket %u",
423 qede_tx_queue_release(txq);
427 /* Allocate software ring */
428 txq->sw_tx_ring = rte_zmalloc_socket("txq->sw_tx_ring",
429 (sizeof(struct qede_tx_entry) *
431 RTE_CACHE_LINE_SIZE, socket_id);
433 if (!txq->sw_tx_ring) {
435 "Unable to allocate memory for txbd ring on socket %u",
437 qdev->ops->common->chain_free(edev, &txq->tx_pbl);
438 qede_tx_queue_release(txq);
442 txq->queue_id = queue_idx;
444 txq->nb_tx_avail = txq->nb_tx_desc;
446 txq->tx_free_thresh =
447 tx_conf->tx_free_thresh ? tx_conf->tx_free_thresh :
448 (txq->nb_tx_desc - QEDE_DEFAULT_TX_FREE_THRESH);
451 "txq %u num_desc %u tx_free_thresh %u socket %u\n",
452 queue_idx, nb_desc, txq->tx_free_thresh, socket_id);
457 qede_tx_queue_setup(struct rte_eth_dev *dev,
460 unsigned int socket_id,
461 const struct rte_eth_txconf *tx_conf)
463 struct qede_dev *qdev = dev->data->dev_private;
464 struct ecore_dev *edev = &qdev->edev;
465 struct qede_tx_queue *txq;
467 PMD_INIT_FUNC_TRACE(edev);
469 if (!rte_is_power_of_2(nb_desc)) {
470 DP_ERR(edev, "Ring size %u is not power of 2\n",
475 /* Free memory prior to re-allocation if needed... */
476 if (dev->data->tx_queues[queue_idx] != NULL) {
477 qede_tx_queue_release(dev->data->tx_queues[queue_idx]);
478 dev->data->tx_queues[queue_idx] = NULL;
481 if (ECORE_IS_CMT(edev)) {
482 txq = qede_alloc_tx_queue_mem(dev, queue_idx * 2, nb_desc,
487 qdev->fp_array[queue_idx * 2].txq = txq;
488 txq = qede_alloc_tx_queue_mem(dev, (queue_idx * 2) + 1, nb_desc,
493 qdev->fp_array[(queue_idx * 2) + 1].txq = txq;
494 dev->data->tx_queues[queue_idx] =
495 &qdev->fp_array_cmt[queue_idx];
497 txq = qede_alloc_tx_queue_mem(dev, queue_idx, nb_desc,
502 dev->data->tx_queues[queue_idx] = txq;
503 qdev->fp_array[queue_idx].txq = txq;
510 qede_tx_queue_reset(__rte_unused struct qede_dev *qdev,
511 struct qede_tx_queue *txq)
513 DP_INFO(&qdev->edev, "Reset TX queue %u\n", txq->queue_id);
514 ecore_chain_reset(&txq->tx_pbl);
517 *txq->hw_cons_ptr = 0;
520 static void qede_tx_queue_release_mbufs(struct qede_tx_queue *txq)
524 if (txq->sw_tx_ring) {
525 for (i = 0; i < txq->nb_tx_desc; i++) {
526 if (txq->sw_tx_ring[i].mbuf) {
527 rte_pktmbuf_free(txq->sw_tx_ring[i].mbuf);
528 txq->sw_tx_ring[i].mbuf = NULL;
534 static void _qede_tx_queue_release(struct qede_dev *qdev,
535 struct ecore_dev *edev,
536 struct qede_tx_queue *txq)
538 qede_tx_queue_release_mbufs(txq);
539 qdev->ops->common->chain_free(edev, &txq->tx_pbl);
540 rte_free(txq->sw_tx_ring);
544 void qede_tx_queue_release(void *tx_queue)
546 struct qede_tx_queue *txq = tx_queue;
547 struct qede_fastpath_cmt *fp_cmt;
548 struct qede_dev *qdev;
549 struct ecore_dev *edev;
553 edev = QEDE_INIT_EDEV(qdev);
554 PMD_INIT_FUNC_TRACE(edev);
556 if (ECORE_IS_CMT(edev)) {
558 _qede_tx_queue_release(qdev, edev, fp_cmt->fp0->txq);
559 _qede_tx_queue_release(qdev, edev, fp_cmt->fp1->txq);
561 _qede_tx_queue_release(qdev, edev, txq);
566 /* This function allocates fast-path status block memory */
568 qede_alloc_mem_sb(struct qede_dev *qdev, struct ecore_sb_info *sb_info,
571 struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
572 struct status_block *sb_virt;
576 sb_virt = OSAL_DMA_ALLOC_COHERENT(edev, &sb_phys,
577 sizeof(struct status_block));
579 DP_ERR(edev, "Status block allocation failed\n");
582 rc = qdev->ops->common->sb_init(edev, sb_info, sb_virt,
585 DP_ERR(edev, "Status block initialization failed\n");
586 OSAL_DMA_FREE_COHERENT(edev, sb_virt, sb_phys,
587 sizeof(struct status_block));
594 int qede_alloc_fp_resc(struct qede_dev *qdev)
596 struct ecore_dev *edev = &qdev->edev;
597 struct qede_fastpath *fp;
603 ecore_vf_get_num_sbs(ECORE_LEADING_HWFN(edev), &num_sbs);
605 num_sbs = ecore_cxt_get_proto_cid_count
606 (ECORE_LEADING_HWFN(edev), PROTOCOLID_ETH, NULL);
609 DP_ERR(edev, "No status blocks available\n");
613 qdev->fp_array = rte_calloc("fp", QEDE_RXTX_MAX(qdev),
614 sizeof(*qdev->fp_array), RTE_CACHE_LINE_SIZE);
616 if (!qdev->fp_array) {
617 DP_ERR(edev, "fp array allocation failed\n");
621 memset((void *)qdev->fp_array, 0, QEDE_RXTX_MAX(qdev) *
622 sizeof(*qdev->fp_array));
624 if (ECORE_IS_CMT(edev)) {
625 qdev->fp_array_cmt = rte_calloc("fp_cmt",
626 QEDE_RXTX_MAX(qdev) / 2,
627 sizeof(*qdev->fp_array_cmt),
628 RTE_CACHE_LINE_SIZE);
630 if (!qdev->fp_array_cmt) {
631 DP_ERR(edev, "fp array for CMT allocation failed\n");
635 memset((void *)qdev->fp_array_cmt, 0,
636 (QEDE_RXTX_MAX(qdev) / 2) * sizeof(*qdev->fp_array_cmt));
638 /* Establish the mapping of fp_array with fp_array_cmt */
639 for (i = 0; i < QEDE_RXTX_MAX(qdev) / 2; i++) {
640 qdev->fp_array_cmt[i].qdev = qdev;
641 qdev->fp_array_cmt[i].fp0 = &qdev->fp_array[i * 2];
642 qdev->fp_array_cmt[i].fp1 = &qdev->fp_array[i * 2 + 1];
646 for (sb_idx = 0; sb_idx < QEDE_RXTX_MAX(qdev); sb_idx++) {
647 fp = &qdev->fp_array[sb_idx];
650 fp->sb_info = rte_calloc("sb", 1, sizeof(struct ecore_sb_info),
651 RTE_CACHE_LINE_SIZE);
653 DP_ERR(edev, "FP sb_info allocation fails\n");
656 if (qede_alloc_mem_sb(qdev, fp->sb_info, sb_idx)) {
657 DP_ERR(edev, "FP status block allocation fails\n");
660 DP_INFO(edev, "sb_info idx 0x%x initialized\n",
661 fp->sb_info->igu_sb_id);
667 void qede_dealloc_fp_resc(struct rte_eth_dev *eth_dev)
669 struct qede_dev *qdev = QEDE_INIT_QDEV(eth_dev);
670 struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
671 struct qede_fastpath *fp;
675 PMD_INIT_FUNC_TRACE(edev);
677 for (sb_idx = 0; sb_idx < QEDE_RXTX_MAX(qdev); sb_idx++) {
678 fp = &qdev->fp_array[sb_idx];
681 DP_INFO(edev, "Free sb_info index 0x%x\n",
682 fp->sb_info->igu_sb_id);
684 OSAL_DMA_FREE_COHERENT(edev, fp->sb_info->sb_virt,
685 fp->sb_info->sb_phys,
686 sizeof(struct status_block));
687 rte_free(fp->sb_info);
692 /* Free packet buffers and ring memories */
693 for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
694 if (eth_dev->data->rx_queues[i]) {
695 qede_rx_queue_release(eth_dev->data->rx_queues[i]);
696 eth_dev->data->rx_queues[i] = NULL;
700 for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
701 if (eth_dev->data->tx_queues[i]) {
702 qede_tx_queue_release(eth_dev->data->tx_queues[i]);
703 eth_dev->data->tx_queues[i] = NULL;
708 rte_free(qdev->fp_array);
709 qdev->fp_array = NULL;
711 if (qdev->fp_array_cmt)
712 rte_free(qdev->fp_array_cmt);
713 qdev->fp_array_cmt = NULL;
717 qede_update_rx_prod(__rte_unused struct qede_dev *edev,
718 struct qede_rx_queue *rxq)
720 uint16_t bd_prod = ecore_chain_get_prod_idx(&rxq->rx_bd_ring);
721 uint16_t cqe_prod = ecore_chain_get_prod_idx(&rxq->rx_comp_ring);
722 struct eth_rx_prod_data rx_prods = { 0 };
724 /* Update producers */
725 rx_prods.bd_prod = rte_cpu_to_le_16(bd_prod);
726 rx_prods.cqe_prod = rte_cpu_to_le_16(cqe_prod);
728 /* Make sure that the BD and SGE data is updated before updating the
729 * producers since FW might read the BD/SGE right after the producer
734 internal_ram_wr(rxq->hw_rxq_prod_addr, sizeof(rx_prods),
735 (uint32_t *)&rx_prods);
737 /* mmiowb is needed to synchronize doorbell writes from more than one
738 * processor. It guarantees that the write arrives to the device before
739 * the napi lock is released and another qede_poll is called (possibly
740 * on another CPU). Without this barrier, the next doorbell can bypass
741 * this doorbell. This is applicable to IA64/Altix systems.
745 PMD_RX_LOG(DEBUG, rxq, "bd_prod %u cqe_prod %u", bd_prod, cqe_prod);
748 /* Starts a given RX queue in HW */
750 qede_rx_queue_start(struct rte_eth_dev *eth_dev, uint16_t rx_queue_id)
752 struct qede_dev *qdev = QEDE_INIT_QDEV(eth_dev);
753 struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
754 struct ecore_queue_start_common_params params;
755 struct ecore_rxq_start_ret_params ret_params;
756 struct qede_rx_queue *rxq;
757 struct qede_fastpath *fp;
758 struct ecore_hwfn *p_hwfn;
759 dma_addr_t p_phys_table;
765 if (rx_queue_id < qdev->num_rx_queues) {
766 fp = &qdev->fp_array[rx_queue_id];
768 /* Allocate buffers for the Rx ring */
769 for (j = 0; j < rxq->nb_rx_desc; j++) {
770 rc = qede_alloc_rx_buffer(rxq);
772 DP_ERR(edev, "RX buffer allocation failed"
773 " for rxq = %u\n", rx_queue_id);
777 /* disable interrupts */
778 ecore_sb_ack(fp->sb_info, IGU_INT_DISABLE, 0);
780 memset(¶ms, 0, sizeof(params));
781 params.queue_id = rx_queue_id / edev->num_hwfns;
783 params.stats_id = params.vport_id;
784 params.p_sb = fp->sb_info;
785 DP_INFO(edev, "rxq %u igu_sb_id 0x%x\n",
786 fp->rxq->queue_id, fp->sb_info->igu_sb_id);
787 params.sb_idx = RX_PI;
788 hwfn_index = rx_queue_id % edev->num_hwfns;
789 p_hwfn = &edev->hwfns[hwfn_index];
790 p_phys_table = ecore_chain_get_pbl_phys(&fp->rxq->rx_comp_ring);
791 page_cnt = ecore_chain_get_page_cnt(&fp->rxq->rx_comp_ring);
792 memset(&ret_params, 0, sizeof(ret_params));
793 rc = ecore_eth_rx_queue_start(p_hwfn,
794 p_hwfn->hw_info.opaque_fid,
795 ¶ms, fp->rxq->rx_buf_size,
796 fp->rxq->rx_bd_ring.p_phys_addr,
797 p_phys_table, page_cnt,
800 DP_ERR(edev, "RX queue %u could not be started, rc = %d\n",
804 /* Update with the returned parameters */
805 fp->rxq->hw_rxq_prod_addr = ret_params.p_prod;
806 fp->rxq->handle = ret_params.p_handle;
808 fp->rxq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[RX_PI];
809 qede_update_rx_prod(qdev, fp->rxq);
810 eth_dev->data->rx_queue_state[rx_queue_id] =
811 RTE_ETH_QUEUE_STATE_STARTED;
812 DP_INFO(edev, "RX queue %u started\n", rx_queue_id);
814 DP_ERR(edev, "RX queue %u is not in range\n", rx_queue_id);
822 qede_tx_queue_start(struct rte_eth_dev *eth_dev, uint16_t tx_queue_id)
824 struct qede_dev *qdev = QEDE_INIT_QDEV(eth_dev);
825 struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
826 struct ecore_queue_start_common_params params;
827 struct ecore_txq_start_ret_params ret_params;
828 struct ecore_hwfn *p_hwfn;
829 dma_addr_t p_phys_table;
830 struct qede_tx_queue *txq;
831 struct qede_fastpath *fp;
836 if (tx_queue_id < qdev->num_tx_queues) {
837 fp = &qdev->fp_array[tx_queue_id];
839 memset(¶ms, 0, sizeof(params));
840 params.queue_id = tx_queue_id / edev->num_hwfns;
842 params.stats_id = params.vport_id;
843 params.p_sb = fp->sb_info;
844 DP_INFO(edev, "txq %u igu_sb_id 0x%x\n",
845 fp->txq->queue_id, fp->sb_info->igu_sb_id);
846 params.sb_idx = TX_PI(0); /* tc = 0 */
847 p_phys_table = ecore_chain_get_pbl_phys(&txq->tx_pbl);
848 page_cnt = ecore_chain_get_page_cnt(&txq->tx_pbl);
849 hwfn_index = tx_queue_id % edev->num_hwfns;
850 p_hwfn = &edev->hwfns[hwfn_index];
851 if (qdev->dev_info.is_legacy)
852 fp->txq->is_legacy = true;
853 rc = ecore_eth_tx_queue_start(p_hwfn,
854 p_hwfn->hw_info.opaque_fid,
856 p_phys_table, page_cnt,
858 if (rc != ECORE_SUCCESS) {
859 DP_ERR(edev, "TX queue %u couldn't be started, rc=%d\n",
863 txq->doorbell_addr = ret_params.p_doorbell;
864 txq->handle = ret_params.p_handle;
866 txq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[TX_PI(0)];
867 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_DEST,
869 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD,
871 SET_FIELD(txq->tx_db.data.params,
872 ETH_DB_DATA_AGG_VAL_SEL,
873 DQ_XCM_ETH_TX_BD_PROD_CMD);
874 txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD;
875 eth_dev->data->tx_queue_state[tx_queue_id] =
876 RTE_ETH_QUEUE_STATE_STARTED;
877 DP_INFO(edev, "TX queue %u started\n", tx_queue_id);
879 DP_ERR(edev, "TX queue %u is not in range\n", tx_queue_id);
887 qede_free_tx_pkt(struct qede_tx_queue *txq)
889 struct rte_mbuf *mbuf;
894 mbuf = txq->sw_tx_ring[idx].mbuf;
896 nb_segs = mbuf->nb_segs;
897 PMD_TX_LOG(DEBUG, txq, "nb_segs to free %u\n", nb_segs);
899 /* It's like consuming rxbuf in recv() */
900 ecore_chain_consume(&txq->tx_pbl);
904 rte_pktmbuf_free(mbuf);
905 txq->sw_tx_ring[idx].mbuf = NULL;
907 PMD_TX_LOG(DEBUG, txq, "Freed tx packet\n");
909 ecore_chain_consume(&txq->tx_pbl);
915 qede_process_tx_compl(__rte_unused struct ecore_dev *edev,
916 struct qede_tx_queue *txq)
919 #ifdef RTE_LIBRTE_QEDE_DEBUG_TX
923 rte_compiler_barrier();
924 hw_bd_cons = rte_le_to_cpu_16(*txq->hw_cons_ptr);
925 #ifdef RTE_LIBRTE_QEDE_DEBUG_TX
926 sw_tx_cons = ecore_chain_get_cons_idx(&txq->tx_pbl);
927 PMD_TX_LOG(DEBUG, txq, "Tx Completions = %u\n",
928 abs(hw_bd_cons - sw_tx_cons));
930 while (hw_bd_cons != ecore_chain_get_cons_idx(&txq->tx_pbl))
931 qede_free_tx_pkt(txq);
934 static int qede_drain_txq(struct qede_dev *qdev,
935 struct qede_tx_queue *txq, bool allow_drain)
937 struct ecore_dev *edev = &qdev->edev;
940 while (txq->sw_tx_cons != txq->sw_tx_prod) {
941 qede_process_tx_compl(edev, txq);
944 DP_ERR(edev, "Tx queue[%u] is stuck,"
945 "requesting MCP to drain\n",
947 rc = qdev->ops->common->drain(edev);
950 return qede_drain_txq(qdev, txq, false);
952 DP_ERR(edev, "Timeout waiting for tx queue[%d]:"
953 "PROD=%d, CONS=%d\n",
954 txq->queue_id, txq->sw_tx_prod,
960 rte_compiler_barrier();
963 /* FW finished processing, wait for HW to transmit all tx packets */
969 /* Stops a given TX queue in the HW */
970 static int qede_tx_queue_stop(struct rte_eth_dev *eth_dev, uint16_t tx_queue_id)
972 struct qede_dev *qdev = QEDE_INIT_QDEV(eth_dev);
973 struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
974 struct ecore_hwfn *p_hwfn;
975 struct qede_tx_queue *txq;
979 if (tx_queue_id < qdev->num_tx_queues) {
980 txq = qdev->fp_array[tx_queue_id].txq;
982 if (qede_drain_txq(qdev, txq, true))
983 return -1; /* For the lack of retcodes */
985 hwfn_index = tx_queue_id % edev->num_hwfns;
986 p_hwfn = &edev->hwfns[hwfn_index];
987 rc = ecore_eth_tx_queue_stop(p_hwfn, txq->handle);
988 if (rc != ECORE_SUCCESS) {
989 DP_ERR(edev, "TX queue %u stop fails\n", tx_queue_id);
992 qede_tx_queue_release_mbufs(txq);
993 qede_tx_queue_reset(qdev, txq);
994 eth_dev->data->tx_queue_state[tx_queue_id] =
995 RTE_ETH_QUEUE_STATE_STOPPED;
996 DP_INFO(edev, "TX queue %u stopped\n", tx_queue_id);
998 DP_ERR(edev, "TX queue %u is not in range\n", tx_queue_id);
1005 int qede_start_queues(struct rte_eth_dev *eth_dev)
1007 struct qede_dev *qdev = QEDE_INIT_QDEV(eth_dev);
1011 for (id = 0; id < qdev->num_rx_queues; id++) {
1012 rc = qede_rx_queue_start(eth_dev, id);
1013 if (rc != ECORE_SUCCESS)
1017 for (id = 0; id < qdev->num_tx_queues; id++) {
1018 rc = qede_tx_queue_start(eth_dev, id);
1019 if (rc != ECORE_SUCCESS)
1026 void qede_stop_queues(struct rte_eth_dev *eth_dev)
1028 struct qede_dev *qdev = QEDE_INIT_QDEV(eth_dev);
1031 /* Stopping RX/TX queues */
1032 for (id = 0; id < qdev->num_tx_queues; id++)
1033 qede_tx_queue_stop(eth_dev, id);
1035 for (id = 0; id < qdev->num_rx_queues; id++)
1036 qede_rx_queue_stop(eth_dev, id);
1039 static inline bool qede_tunn_exist(uint16_t flag)
1041 return !!((PARSING_AND_ERR_FLAGS_TUNNELEXIST_MASK <<
1042 PARSING_AND_ERR_FLAGS_TUNNELEXIST_SHIFT) & flag);
1045 static inline uint8_t qede_check_tunn_csum_l3(uint16_t flag)
1047 return !!((PARSING_AND_ERR_FLAGS_TUNNELIPHDRERROR_MASK <<
1048 PARSING_AND_ERR_FLAGS_TUNNELIPHDRERROR_SHIFT) & flag);
1052 * qede_check_tunn_csum_l4:
1054 * 1 : If L4 csum is enabled AND if the validation has failed.
1057 static inline uint8_t qede_check_tunn_csum_l4(uint16_t flag)
1059 if ((PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMWASCALCULATED_MASK <<
1060 PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMWASCALCULATED_SHIFT) & flag)
1061 return !!((PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMERROR_MASK <<
1062 PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMERROR_SHIFT) & flag);
1067 static inline uint8_t qede_check_notunn_csum_l4(uint16_t flag)
1069 if ((PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_MASK <<
1070 PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_SHIFT) & flag)
1071 return !!((PARSING_AND_ERR_FLAGS_L4CHKSMERROR_MASK <<
1072 PARSING_AND_ERR_FLAGS_L4CHKSMERROR_SHIFT) & flag);
1077 /* Returns outer L2, L3 and L4 packet_type for tunneled packets */
1078 static inline uint32_t qede_rx_cqe_to_pkt_type_outer(struct rte_mbuf *m)
1080 uint32_t packet_type = RTE_PTYPE_UNKNOWN;
1081 struct rte_ether_hdr *eth_hdr;
1082 struct rte_ipv4_hdr *ipv4_hdr;
1083 struct rte_ipv6_hdr *ipv6_hdr;
1084 struct rte_vlan_hdr *vlan_hdr;
1086 bool vlan_tagged = 0;
1089 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
1090 len = sizeof(struct rte_ether_hdr);
1091 ethertype = rte_cpu_to_be_16(eth_hdr->ether_type);
1093 /* Note: Valid only if VLAN stripping is disabled */
1094 if (ethertype == RTE_ETHER_TYPE_VLAN) {
1096 vlan_hdr = (struct rte_vlan_hdr *)(eth_hdr + 1);
1097 len += sizeof(struct rte_vlan_hdr);
1098 ethertype = rte_cpu_to_be_16(vlan_hdr->eth_proto);
1101 if (ethertype == RTE_ETHER_TYPE_IPV4) {
1102 packet_type |= RTE_PTYPE_L3_IPV4;
1103 ipv4_hdr = rte_pktmbuf_mtod_offset(m,
1104 struct rte_ipv4_hdr *, len);
1105 if (ipv4_hdr->next_proto_id == IPPROTO_TCP)
1106 packet_type |= RTE_PTYPE_L4_TCP;
1107 else if (ipv4_hdr->next_proto_id == IPPROTO_UDP)
1108 packet_type |= RTE_PTYPE_L4_UDP;
1109 } else if (ethertype == RTE_ETHER_TYPE_IPV6) {
1110 packet_type |= RTE_PTYPE_L3_IPV6;
1111 ipv6_hdr = rte_pktmbuf_mtod_offset(m,
1112 struct rte_ipv6_hdr *, len);
1113 if (ipv6_hdr->proto == IPPROTO_TCP)
1114 packet_type |= RTE_PTYPE_L4_TCP;
1115 else if (ipv6_hdr->proto == IPPROTO_UDP)
1116 packet_type |= RTE_PTYPE_L4_UDP;
1120 packet_type |= RTE_PTYPE_L2_ETHER_VLAN;
1122 packet_type |= RTE_PTYPE_L2_ETHER;
1127 static inline uint32_t qede_rx_cqe_to_pkt_type_inner(uint16_t flags)
1132 static const uint32_t
1133 ptype_lkup_tbl[QEDE_PKT_TYPE_MAX] __rte_cache_aligned = {
1134 [QEDE_PKT_TYPE_IPV4] = RTE_PTYPE_INNER_L3_IPV4 |
1135 RTE_PTYPE_INNER_L2_ETHER,
1136 [QEDE_PKT_TYPE_IPV6] = RTE_PTYPE_INNER_L3_IPV6 |
1137 RTE_PTYPE_INNER_L2_ETHER,
1138 [QEDE_PKT_TYPE_IPV4_TCP] = RTE_PTYPE_INNER_L3_IPV4 |
1139 RTE_PTYPE_INNER_L4_TCP |
1140 RTE_PTYPE_INNER_L2_ETHER,
1141 [QEDE_PKT_TYPE_IPV6_TCP] = RTE_PTYPE_INNER_L3_IPV6 |
1142 RTE_PTYPE_INNER_L4_TCP |
1143 RTE_PTYPE_INNER_L2_ETHER,
1144 [QEDE_PKT_TYPE_IPV4_UDP] = RTE_PTYPE_INNER_L3_IPV4 |
1145 RTE_PTYPE_INNER_L4_UDP |
1146 RTE_PTYPE_INNER_L2_ETHER,
1147 [QEDE_PKT_TYPE_IPV6_UDP] = RTE_PTYPE_INNER_L3_IPV6 |
1148 RTE_PTYPE_INNER_L4_UDP |
1149 RTE_PTYPE_INNER_L2_ETHER,
1150 /* Frags with no VLAN */
1151 [QEDE_PKT_TYPE_IPV4_FRAG] = RTE_PTYPE_INNER_L3_IPV4 |
1152 RTE_PTYPE_INNER_L4_FRAG |
1153 RTE_PTYPE_INNER_L2_ETHER,
1154 [QEDE_PKT_TYPE_IPV6_FRAG] = RTE_PTYPE_INNER_L3_IPV6 |
1155 RTE_PTYPE_INNER_L4_FRAG |
1156 RTE_PTYPE_INNER_L2_ETHER,
1158 [QEDE_PKT_TYPE_IPV4_VLAN] = RTE_PTYPE_INNER_L3_IPV4 |
1159 RTE_PTYPE_INNER_L2_ETHER_VLAN,
1160 [QEDE_PKT_TYPE_IPV6_VLAN] = RTE_PTYPE_INNER_L3_IPV6 |
1161 RTE_PTYPE_INNER_L2_ETHER_VLAN,
1162 [QEDE_PKT_TYPE_IPV4_TCP_VLAN] = RTE_PTYPE_INNER_L3_IPV4 |
1163 RTE_PTYPE_INNER_L4_TCP |
1164 RTE_PTYPE_INNER_L2_ETHER_VLAN,
1165 [QEDE_PKT_TYPE_IPV6_TCP_VLAN] = RTE_PTYPE_INNER_L3_IPV6 |
1166 RTE_PTYPE_INNER_L4_TCP |
1167 RTE_PTYPE_INNER_L2_ETHER_VLAN,
1168 [QEDE_PKT_TYPE_IPV4_UDP_VLAN] = RTE_PTYPE_INNER_L3_IPV4 |
1169 RTE_PTYPE_INNER_L4_UDP |
1170 RTE_PTYPE_INNER_L2_ETHER_VLAN,
1171 [QEDE_PKT_TYPE_IPV6_UDP_VLAN] = RTE_PTYPE_INNER_L3_IPV6 |
1172 RTE_PTYPE_INNER_L4_UDP |
1173 RTE_PTYPE_INNER_L2_ETHER_VLAN,
1174 /* Frags with VLAN */
1175 [QEDE_PKT_TYPE_IPV4_VLAN_FRAG] = RTE_PTYPE_INNER_L3_IPV4 |
1176 RTE_PTYPE_INNER_L4_FRAG |
1177 RTE_PTYPE_INNER_L2_ETHER_VLAN,
1178 [QEDE_PKT_TYPE_IPV6_VLAN_FRAG] = RTE_PTYPE_INNER_L3_IPV6 |
1179 RTE_PTYPE_INNER_L4_FRAG |
1180 RTE_PTYPE_INNER_L2_ETHER_VLAN,
1183 /* Bits (0..3) provides L3/L4 protocol type */
1184 /* Bits (4,5) provides frag and VLAN info */
1185 val = ((PARSING_AND_ERR_FLAGS_L3TYPE_MASK <<
1186 PARSING_AND_ERR_FLAGS_L3TYPE_SHIFT) |
1187 (PARSING_AND_ERR_FLAGS_L4PROTOCOL_MASK <<
1188 PARSING_AND_ERR_FLAGS_L4PROTOCOL_SHIFT) |
1189 (PARSING_AND_ERR_FLAGS_IPV4FRAG_MASK <<
1190 PARSING_AND_ERR_FLAGS_IPV4FRAG_SHIFT) |
1191 (PARSING_AND_ERR_FLAGS_TAG8021QEXIST_MASK <<
1192 PARSING_AND_ERR_FLAGS_TAG8021QEXIST_SHIFT)) & flags;
1194 if (val < QEDE_PKT_TYPE_MAX)
1195 return ptype_lkup_tbl[val];
1197 return RTE_PTYPE_UNKNOWN;
1200 static inline uint32_t qede_rx_cqe_to_pkt_type(uint16_t flags)
1205 static const uint32_t
1206 ptype_lkup_tbl[QEDE_PKT_TYPE_MAX] __rte_cache_aligned = {
1207 [QEDE_PKT_TYPE_IPV4] = RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L2_ETHER,
1208 [QEDE_PKT_TYPE_IPV6] = RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L2_ETHER,
1209 [QEDE_PKT_TYPE_IPV4_TCP] = RTE_PTYPE_L3_IPV4 |
1212 [QEDE_PKT_TYPE_IPV6_TCP] = RTE_PTYPE_L3_IPV6 |
1215 [QEDE_PKT_TYPE_IPV4_UDP] = RTE_PTYPE_L3_IPV4 |
1218 [QEDE_PKT_TYPE_IPV6_UDP] = RTE_PTYPE_L3_IPV6 |
1221 /* Frags with no VLAN */
1222 [QEDE_PKT_TYPE_IPV4_FRAG] = RTE_PTYPE_L3_IPV4 |
1225 [QEDE_PKT_TYPE_IPV6_FRAG] = RTE_PTYPE_L3_IPV6 |
1229 [QEDE_PKT_TYPE_IPV4_VLAN] = RTE_PTYPE_L3_IPV4 |
1230 RTE_PTYPE_L2_ETHER_VLAN,
1231 [QEDE_PKT_TYPE_IPV6_VLAN] = RTE_PTYPE_L3_IPV6 |
1232 RTE_PTYPE_L2_ETHER_VLAN,
1233 [QEDE_PKT_TYPE_IPV4_TCP_VLAN] = RTE_PTYPE_L3_IPV4 |
1235 RTE_PTYPE_L2_ETHER_VLAN,
1236 [QEDE_PKT_TYPE_IPV6_TCP_VLAN] = RTE_PTYPE_L3_IPV6 |
1238 RTE_PTYPE_L2_ETHER_VLAN,
1239 [QEDE_PKT_TYPE_IPV4_UDP_VLAN] = RTE_PTYPE_L3_IPV4 |
1241 RTE_PTYPE_L2_ETHER_VLAN,
1242 [QEDE_PKT_TYPE_IPV6_UDP_VLAN] = RTE_PTYPE_L3_IPV6 |
1244 RTE_PTYPE_L2_ETHER_VLAN,
1245 /* Frags with VLAN */
1246 [QEDE_PKT_TYPE_IPV4_VLAN_FRAG] = RTE_PTYPE_L3_IPV4 |
1248 RTE_PTYPE_L2_ETHER_VLAN,
1249 [QEDE_PKT_TYPE_IPV6_VLAN_FRAG] = RTE_PTYPE_L3_IPV6 |
1251 RTE_PTYPE_L2_ETHER_VLAN,
1254 /* Bits (0..3) provides L3/L4 protocol type */
1255 /* Bits (4,5) provides frag and VLAN info */
1256 val = ((PARSING_AND_ERR_FLAGS_L3TYPE_MASK <<
1257 PARSING_AND_ERR_FLAGS_L3TYPE_SHIFT) |
1258 (PARSING_AND_ERR_FLAGS_L4PROTOCOL_MASK <<
1259 PARSING_AND_ERR_FLAGS_L4PROTOCOL_SHIFT) |
1260 (PARSING_AND_ERR_FLAGS_IPV4FRAG_MASK <<
1261 PARSING_AND_ERR_FLAGS_IPV4FRAG_SHIFT) |
1262 (PARSING_AND_ERR_FLAGS_TAG8021QEXIST_MASK <<
1263 PARSING_AND_ERR_FLAGS_TAG8021QEXIST_SHIFT)) & flags;
1265 if (val < QEDE_PKT_TYPE_MAX)
1266 return ptype_lkup_tbl[val];
1268 return RTE_PTYPE_UNKNOWN;
1271 static inline uint8_t
1272 qede_check_notunn_csum_l3(struct rte_mbuf *m, uint16_t flag)
1274 struct rte_ipv4_hdr *ip;
1279 val = ((PARSING_AND_ERR_FLAGS_IPHDRERROR_MASK <<
1280 PARSING_AND_ERR_FLAGS_IPHDRERROR_SHIFT) & flag);
1282 if (unlikely(val)) {
1283 m->packet_type = qede_rx_cqe_to_pkt_type(flag);
1284 if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
1285 ip = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
1286 sizeof(struct rte_ether_hdr));
1287 pkt_csum = ip->hdr_checksum;
1288 ip->hdr_checksum = 0;
1289 calc_csum = rte_ipv4_cksum(ip);
1290 ip->hdr_checksum = pkt_csum;
1291 return (calc_csum != pkt_csum);
1292 } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
1299 static inline void qede_rx_bd_ring_consume(struct qede_rx_queue *rxq)
1301 ecore_chain_consume(&rxq->rx_bd_ring);
1306 qede_reuse_page(__rte_unused struct qede_dev *qdev,
1307 struct qede_rx_queue *rxq, struct qede_rx_entry *curr_cons)
1309 struct eth_rx_bd *rx_bd_prod = ecore_chain_produce(&rxq->rx_bd_ring);
1310 uint16_t idx = rxq->sw_rx_prod & NUM_RX_BDS(rxq);
1311 struct qede_rx_entry *curr_prod;
1312 dma_addr_t new_mapping;
1314 curr_prod = &rxq->sw_rx_ring[idx];
1315 *curr_prod = *curr_cons;
1317 new_mapping = rte_mbuf_data_iova_default(curr_prod->mbuf) +
1318 curr_prod->page_offset;
1320 rx_bd_prod->addr.hi = rte_cpu_to_le_32(U64_HI(new_mapping));
1321 rx_bd_prod->addr.lo = rte_cpu_to_le_32(U64_LO(new_mapping));
1327 qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq,
1328 struct qede_dev *qdev, uint8_t count)
1330 struct qede_rx_entry *curr_cons;
1332 for (; count > 0; count--) {
1333 curr_cons = &rxq->sw_rx_ring[rxq->sw_rx_cons & NUM_RX_BDS(rxq)];
1334 qede_reuse_page(qdev, rxq, curr_cons);
1335 qede_rx_bd_ring_consume(rxq);
1340 qede_rx_process_tpa_cmn_cont_end_cqe(__rte_unused struct qede_dev *qdev,
1341 struct qede_rx_queue *rxq,
1342 uint8_t agg_index, uint16_t len)
1344 struct qede_agg_info *tpa_info;
1345 struct rte_mbuf *curr_frag; /* Pointer to currently filled TPA seg */
1348 /* Under certain conditions it is possible that FW may not consume
1349 * additional or new BD. So decision to consume the BD must be made
1350 * based on len_list[0].
1352 if (rte_le_to_cpu_16(len)) {
1353 tpa_info = &rxq->tpa_info[agg_index];
1354 cons_idx = rxq->sw_rx_cons & NUM_RX_BDS(rxq);
1355 curr_frag = rxq->sw_rx_ring[cons_idx].mbuf;
1357 curr_frag->nb_segs = 1;
1358 curr_frag->pkt_len = rte_le_to_cpu_16(len);
1359 curr_frag->data_len = curr_frag->pkt_len;
1360 tpa_info->tpa_tail->next = curr_frag;
1361 tpa_info->tpa_tail = curr_frag;
1362 qede_rx_bd_ring_consume(rxq);
1363 if (unlikely(qede_alloc_rx_buffer(rxq) != 0)) {
1364 PMD_RX_LOG(ERR, rxq, "mbuf allocation fails\n");
1365 rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed++;
1366 rxq->rx_alloc_errors++;
1372 qede_rx_process_tpa_cont_cqe(struct qede_dev *qdev,
1373 struct qede_rx_queue *rxq,
1374 struct eth_fast_path_rx_tpa_cont_cqe *cqe)
1376 PMD_RX_LOG(INFO, rxq, "TPA cont[%d] - len [%d]\n",
1377 cqe->tpa_agg_index, rte_le_to_cpu_16(cqe->len_list[0]));
1378 /* only len_list[0] will have value */
1379 qede_rx_process_tpa_cmn_cont_end_cqe(qdev, rxq, cqe->tpa_agg_index,
1384 qede_rx_process_tpa_end_cqe(struct qede_dev *qdev,
1385 struct qede_rx_queue *rxq,
1386 struct eth_fast_path_rx_tpa_end_cqe *cqe)
1388 struct rte_mbuf *rx_mb; /* Pointer to head of the chained agg */
1390 qede_rx_process_tpa_cmn_cont_end_cqe(qdev, rxq, cqe->tpa_agg_index,
1392 /* Update total length and frags based on end TPA */
1393 rx_mb = rxq->tpa_info[cqe->tpa_agg_index].tpa_head;
1394 /* TODO: Add Sanity Checks */
1395 rx_mb->nb_segs = cqe->num_of_bds;
1396 rx_mb->pkt_len = cqe->total_packet_len;
1398 PMD_RX_LOG(INFO, rxq, "TPA End[%d] reason %d cqe_len %d nb_segs %d"
1399 " pkt_len %d\n", cqe->tpa_agg_index, cqe->end_reason,
1400 rte_le_to_cpu_16(cqe->len_list[0]), rx_mb->nb_segs,
1404 static inline uint32_t qede_rx_cqe_to_tunn_pkt_type(uint16_t flags)
1409 static const uint32_t
1410 ptype_tunn_lkup_tbl[QEDE_PKT_TYPE_TUNN_MAX_TYPE] __rte_cache_aligned = {
1411 [QEDE_PKT_TYPE_UNKNOWN] = RTE_PTYPE_UNKNOWN,
1412 [QEDE_PKT_TYPE_TUNN_GENEVE] = RTE_PTYPE_TUNNEL_GENEVE,
1413 [QEDE_PKT_TYPE_TUNN_GRE] = RTE_PTYPE_TUNNEL_GRE,
1414 [QEDE_PKT_TYPE_TUNN_VXLAN] = RTE_PTYPE_TUNNEL_VXLAN,
1415 [QEDE_PKT_TYPE_TUNN_L2_TENID_NOEXIST_GENEVE] =
1416 RTE_PTYPE_TUNNEL_GENEVE,
1417 [QEDE_PKT_TYPE_TUNN_L2_TENID_NOEXIST_GRE] =
1418 RTE_PTYPE_TUNNEL_GRE,
1419 [QEDE_PKT_TYPE_TUNN_L2_TENID_NOEXIST_VXLAN] =
1420 RTE_PTYPE_TUNNEL_VXLAN,
1421 [QEDE_PKT_TYPE_TUNN_L2_TENID_EXIST_GENEVE] =
1422 RTE_PTYPE_TUNNEL_GENEVE,
1423 [QEDE_PKT_TYPE_TUNN_L2_TENID_EXIST_GRE] =
1424 RTE_PTYPE_TUNNEL_GRE,
1425 [QEDE_PKT_TYPE_TUNN_L2_TENID_EXIST_VXLAN] =
1426 RTE_PTYPE_TUNNEL_VXLAN,
1427 [QEDE_PKT_TYPE_TUNN_IPV4_TENID_NOEXIST_GENEVE] =
1428 RTE_PTYPE_TUNNEL_GENEVE | RTE_PTYPE_L3_IPV4,
1429 [QEDE_PKT_TYPE_TUNN_IPV4_TENID_NOEXIST_GRE] =
1430 RTE_PTYPE_TUNNEL_GRE | RTE_PTYPE_L3_IPV4,
1431 [QEDE_PKT_TYPE_TUNN_IPV4_TENID_NOEXIST_VXLAN] =
1432 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L3_IPV4,
1433 [QEDE_PKT_TYPE_TUNN_IPV4_TENID_EXIST_GENEVE] =
1434 RTE_PTYPE_TUNNEL_GENEVE | RTE_PTYPE_L3_IPV4,
1435 [QEDE_PKT_TYPE_TUNN_IPV4_TENID_EXIST_GRE] =
1436 RTE_PTYPE_TUNNEL_GRE | RTE_PTYPE_L3_IPV4,
1437 [QEDE_PKT_TYPE_TUNN_IPV4_TENID_EXIST_VXLAN] =
1438 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L3_IPV4,
1439 [QEDE_PKT_TYPE_TUNN_IPV6_TENID_NOEXIST_GENEVE] =
1440 RTE_PTYPE_TUNNEL_GENEVE | RTE_PTYPE_L3_IPV6,
1441 [QEDE_PKT_TYPE_TUNN_IPV6_TENID_NOEXIST_GRE] =
1442 RTE_PTYPE_TUNNEL_GRE | RTE_PTYPE_L3_IPV6,
1443 [QEDE_PKT_TYPE_TUNN_IPV6_TENID_NOEXIST_VXLAN] =
1444 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L3_IPV6,
1445 [QEDE_PKT_TYPE_TUNN_IPV6_TENID_EXIST_GENEVE] =
1446 RTE_PTYPE_TUNNEL_GENEVE | RTE_PTYPE_L3_IPV6,
1447 [QEDE_PKT_TYPE_TUNN_IPV6_TENID_EXIST_GRE] =
1448 RTE_PTYPE_TUNNEL_GRE | RTE_PTYPE_L3_IPV6,
1449 [QEDE_PKT_TYPE_TUNN_IPV6_TENID_EXIST_VXLAN] =
1450 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L3_IPV6,
1453 /* Cover bits[4-0] to include tunn_type and next protocol */
1454 val = ((ETH_TUNNEL_PARSING_FLAGS_TYPE_MASK <<
1455 ETH_TUNNEL_PARSING_FLAGS_TYPE_SHIFT) |
1456 (ETH_TUNNEL_PARSING_FLAGS_NEXT_PROTOCOL_MASK <<
1457 ETH_TUNNEL_PARSING_FLAGS_NEXT_PROTOCOL_SHIFT)) & flags;
1459 if (val < QEDE_PKT_TYPE_TUNN_MAX_TYPE)
1460 return ptype_tunn_lkup_tbl[val];
1462 return RTE_PTYPE_UNKNOWN;
1466 qede_process_sg_pkts(void *p_rxq, struct rte_mbuf *rx_mb,
1467 uint8_t num_segs, uint16_t pkt_len)
1469 struct qede_rx_queue *rxq = p_rxq;
1470 struct qede_dev *qdev = rxq->qdev;
1471 register struct rte_mbuf *seg1 = NULL;
1472 register struct rte_mbuf *seg2 = NULL;
1473 uint16_t sw_rx_index;
1478 cur_size = pkt_len > rxq->rx_buf_size ? rxq->rx_buf_size :
1480 if (unlikely(!cur_size)) {
1481 PMD_RX_LOG(ERR, rxq, "Length is 0 while %u BDs"
1482 " left for mapping jumbo\n", num_segs);
1483 qede_recycle_rx_bd_ring(rxq, qdev, num_segs);
1486 sw_rx_index = rxq->sw_rx_cons & NUM_RX_BDS(rxq);
1487 seg2 = rxq->sw_rx_ring[sw_rx_index].mbuf;
1488 qede_rx_bd_ring_consume(rxq);
1489 pkt_len -= cur_size;
1490 seg2->data_len = cur_size;
1500 #ifdef RTE_LIBRTE_QEDE_DEBUG_RX
1502 print_rx_bd_info(struct rte_mbuf *m, struct qede_rx_queue *rxq,
1505 PMD_RX_LOG(INFO, rxq,
1506 "len 0x%04x bf 0x%04x hash_val 0x%x"
1507 " ol_flags 0x%04lx l2=%s l3=%s l4=%s tunn=%s"
1508 " inner_l2=%s inner_l3=%s inner_l4=%s\n",
1509 m->data_len, bitfield, m->hash.rss,
1510 (unsigned long)m->ol_flags,
1511 rte_get_ptype_l2_name(m->packet_type),
1512 rte_get_ptype_l3_name(m->packet_type),
1513 rte_get_ptype_l4_name(m->packet_type),
1514 rte_get_ptype_tunnel_name(m->packet_type),
1515 rte_get_ptype_inner_l2_name(m->packet_type),
1516 rte_get_ptype_inner_l3_name(m->packet_type),
1517 rte_get_ptype_inner_l4_name(m->packet_type));
1522 qede_recv_pkts(void *p_rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
1524 struct qede_rx_queue *rxq = p_rxq;
1525 struct qede_dev *qdev = rxq->qdev;
1526 struct ecore_dev *edev = &qdev->edev;
1527 uint16_t hw_comp_cons, sw_comp_cons, sw_rx_index;
1528 uint16_t rx_pkt = 0;
1529 union eth_rx_cqe *cqe;
1530 struct eth_fast_path_rx_reg_cqe *fp_cqe = NULL;
1531 register struct rte_mbuf *rx_mb = NULL;
1532 register struct rte_mbuf *seg1 = NULL;
1533 enum eth_rx_cqe_type cqe_type;
1534 uint16_t pkt_len = 0; /* Sum of all BD segments */
1535 uint16_t len; /* Length of first BD */
1536 uint8_t num_segs = 1;
1537 uint16_t preload_idx;
1538 uint16_t parse_flag;
1539 #ifdef RTE_LIBRTE_QEDE_DEBUG_RX
1540 uint8_t bitfield_val;
1542 uint8_t tunn_parse_flag;
1543 struct eth_fast_path_rx_tpa_start_cqe *cqe_start_tpa;
1545 uint32_t packet_type;
1548 uint8_t offset, tpa_agg_idx, flags;
1549 struct qede_agg_info *tpa_info = NULL;
1551 int rx_alloc_count = 0;
1554 /* Allocate buffers that we used in previous loop */
1555 if (rxq->rx_alloc_count) {
1556 if (unlikely(qede_alloc_rx_bulk_mbufs(rxq,
1557 rxq->rx_alloc_count))) {
1558 struct rte_eth_dev *dev;
1560 PMD_RX_LOG(ERR, rxq,
1561 "New buffer allocation failed,"
1562 "dropping incoming packetn");
1563 dev = &rte_eth_devices[rxq->port_id];
1564 dev->data->rx_mbuf_alloc_failed +=
1565 rxq->rx_alloc_count;
1566 rxq->rx_alloc_errors += rxq->rx_alloc_count;
1569 qede_update_rx_prod(qdev, rxq);
1570 rxq->rx_alloc_count = 0;
1573 hw_comp_cons = rte_le_to_cpu_16(*rxq->hw_cons_ptr);
1574 sw_comp_cons = ecore_chain_get_cons_idx(&rxq->rx_comp_ring);
1578 if (hw_comp_cons == sw_comp_cons)
1581 while (sw_comp_cons != hw_comp_cons) {
1583 packet_type = RTE_PTYPE_UNKNOWN;
1585 tpa_start_flg = false;
1588 /* Get the CQE from the completion ring */
1590 (union eth_rx_cqe *)ecore_chain_consume(&rxq->rx_comp_ring);
1591 cqe_type = cqe->fast_path_regular.type;
1592 PMD_RX_LOG(INFO, rxq, "Rx CQE type %d\n", cqe_type);
1595 case ETH_RX_CQE_TYPE_REGULAR:
1596 fp_cqe = &cqe->fast_path_regular;
1598 case ETH_RX_CQE_TYPE_TPA_START:
1599 cqe_start_tpa = &cqe->fast_path_tpa_start;
1600 tpa_info = &rxq->tpa_info[cqe_start_tpa->tpa_agg_index];
1601 tpa_start_flg = true;
1602 /* Mark it as LRO packet */
1603 ol_flags |= PKT_RX_LRO;
1604 /* In split mode, seg_len is same as len_on_first_bd
1605 * and bw_ext_bd_len_list will be empty since there are
1606 * no additional buffers
1608 PMD_RX_LOG(INFO, rxq,
1609 "TPA start[%d] - len_on_first_bd %d header %d"
1610 " [bd_list[0] %d], [seg_len %d]\n",
1611 cqe_start_tpa->tpa_agg_index,
1612 rte_le_to_cpu_16(cqe_start_tpa->len_on_first_bd),
1613 cqe_start_tpa->header_len,
1614 rte_le_to_cpu_16(cqe_start_tpa->bw_ext_bd_len_list[0]),
1615 rte_le_to_cpu_16(cqe_start_tpa->seg_len));
1618 case ETH_RX_CQE_TYPE_TPA_CONT:
1619 qede_rx_process_tpa_cont_cqe(qdev, rxq,
1620 &cqe->fast_path_tpa_cont);
1622 case ETH_RX_CQE_TYPE_TPA_END:
1623 qede_rx_process_tpa_end_cqe(qdev, rxq,
1624 &cqe->fast_path_tpa_end);
1625 tpa_agg_idx = cqe->fast_path_tpa_end.tpa_agg_index;
1626 tpa_info = &rxq->tpa_info[tpa_agg_idx];
1627 rx_mb = rxq->tpa_info[tpa_agg_idx].tpa_head;
1629 case ETH_RX_CQE_TYPE_SLOW_PATH:
1630 PMD_RX_LOG(INFO, rxq, "Got unexpected slowpath CQE\n");
1631 ecore_eth_cqe_completion(
1632 &edev->hwfns[rxq->queue_id % edev->num_hwfns],
1633 (struct eth_slow_path_rx_cqe *)cqe);
1639 /* Get the data from the SW ring */
1640 sw_rx_index = rxq->sw_rx_cons & NUM_RX_BDS(rxq);
1641 rx_mb = rxq->sw_rx_ring[sw_rx_index].mbuf;
1642 assert(rx_mb != NULL);
1644 /* Handle regular CQE or TPA start CQE */
1645 if (!tpa_start_flg) {
1646 parse_flag = rte_le_to_cpu_16(fp_cqe->pars_flags.flags);
1647 offset = fp_cqe->placement_offset;
1648 len = rte_le_to_cpu_16(fp_cqe->len_on_first_bd);
1649 pkt_len = rte_le_to_cpu_16(fp_cqe->pkt_len);
1650 vlan_tci = rte_le_to_cpu_16(fp_cqe->vlan_tag);
1651 rss_hash = rte_le_to_cpu_32(fp_cqe->rss_hash);
1652 #ifdef RTE_LIBRTE_QEDE_DEBUG_RX
1653 bitfield_val = fp_cqe->bitfields;
1657 rte_le_to_cpu_16(cqe_start_tpa->pars_flags.flags);
1658 offset = cqe_start_tpa->placement_offset;
1659 /* seg_len = len_on_first_bd */
1660 len = rte_le_to_cpu_16(cqe_start_tpa->len_on_first_bd);
1661 vlan_tci = rte_le_to_cpu_16(cqe_start_tpa->vlan_tag);
1662 #ifdef RTE_LIBRTE_QEDE_DEBUG_RX
1663 bitfield_val = cqe_start_tpa->bitfields;
1665 rss_hash = rte_le_to_cpu_32(cqe_start_tpa->rss_hash);
1667 if (qede_tunn_exist(parse_flag)) {
1668 PMD_RX_LOG(INFO, rxq, "Rx tunneled packet\n");
1669 if (unlikely(qede_check_tunn_csum_l4(parse_flag))) {
1670 PMD_RX_LOG(ERR, rxq,
1671 "L4 csum failed, flags = 0x%x\n",
1673 rxq->rx_hw_errors++;
1674 ol_flags |= PKT_RX_L4_CKSUM_BAD;
1676 ol_flags |= PKT_RX_L4_CKSUM_GOOD;
1679 if (unlikely(qede_check_tunn_csum_l3(parse_flag))) {
1680 PMD_RX_LOG(ERR, rxq,
1681 "Outer L3 csum failed, flags = 0x%x\n",
1683 rxq->rx_hw_errors++;
1684 ol_flags |= PKT_RX_EIP_CKSUM_BAD;
1686 ol_flags |= PKT_RX_IP_CKSUM_GOOD;
1690 flags = cqe_start_tpa->tunnel_pars_flags.flags;
1692 flags = fp_cqe->tunnel_pars_flags.flags;
1693 tunn_parse_flag = flags;
1697 qede_rx_cqe_to_tunn_pkt_type(tunn_parse_flag);
1701 qede_rx_cqe_to_pkt_type_inner(parse_flag);
1703 /* Outer L3/L4 types is not available in CQE */
1704 packet_type |= qede_rx_cqe_to_pkt_type_outer(rx_mb);
1706 /* Outer L3/L4 types is not available in CQE.
1707 * Need to add offset to parse correctly,
1709 rx_mb->data_off = offset + RTE_PKTMBUF_HEADROOM;
1710 packet_type |= qede_rx_cqe_to_pkt_type_outer(rx_mb);
1712 packet_type |= qede_rx_cqe_to_pkt_type(parse_flag);
1715 /* Common handling for non-tunnel packets and for inner
1716 * headers in the case of tunnel.
1718 if (unlikely(qede_check_notunn_csum_l4(parse_flag))) {
1719 PMD_RX_LOG(ERR, rxq,
1720 "L4 csum failed, flags = 0x%x\n",
1722 rxq->rx_hw_errors++;
1723 ol_flags |= PKT_RX_L4_CKSUM_BAD;
1725 ol_flags |= PKT_RX_L4_CKSUM_GOOD;
1727 if (unlikely(qede_check_notunn_csum_l3(rx_mb, parse_flag))) {
1728 PMD_RX_LOG(ERR, rxq, "IP csum failed, flags = 0x%x\n",
1730 rxq->rx_hw_errors++;
1731 ol_flags |= PKT_RX_IP_CKSUM_BAD;
1733 ol_flags |= PKT_RX_IP_CKSUM_GOOD;
1736 if (CQE_HAS_VLAN(parse_flag) ||
1737 CQE_HAS_OUTER_VLAN(parse_flag)) {
1738 /* Note: FW doesn't indicate Q-in-Q packet */
1739 ol_flags |= PKT_RX_VLAN;
1740 if (qdev->vlan_strip_flg) {
1741 ol_flags |= PKT_RX_VLAN_STRIPPED;
1742 rx_mb->vlan_tci = vlan_tci;
1747 if (qdev->rss_enable) {
1748 ol_flags |= PKT_RX_RSS_HASH;
1749 rx_mb->hash.rss = rss_hash;
1753 qede_rx_bd_ring_consume(rxq);
1755 if (!tpa_start_flg && fp_cqe->bd_num > 1) {
1756 PMD_RX_LOG(DEBUG, rxq, "Jumbo-over-BD packet: %02x BDs"
1757 " len on first: %04x Total Len: %04x",
1758 fp_cqe->bd_num, len, pkt_len);
1759 num_segs = fp_cqe->bd_num - 1;
1761 if (qede_process_sg_pkts(p_rxq, seg1, num_segs,
1765 rx_alloc_count += num_segs;
1766 rxq->rx_segs += num_segs;
1768 rxq->rx_segs++; /* for the first segment */
1770 /* Prefetch next mbuf while processing current one. */
1771 preload_idx = rxq->sw_rx_cons & NUM_RX_BDS(rxq);
1772 rte_prefetch0(rxq->sw_rx_ring[preload_idx].mbuf);
1774 /* Update rest of the MBUF fields */
1775 rx_mb->data_off = offset + RTE_PKTMBUF_HEADROOM;
1776 rx_mb->port = rxq->port_id;
1777 rx_mb->ol_flags = ol_flags;
1778 rx_mb->data_len = len;
1779 rx_mb->packet_type = packet_type;
1780 #ifdef RTE_LIBRTE_QEDE_DEBUG_RX
1781 print_rx_bd_info(rx_mb, rxq, bitfield_val);
1783 if (!tpa_start_flg) {
1784 rx_mb->nb_segs = fp_cqe->bd_num;
1785 rx_mb->pkt_len = pkt_len;
1787 /* store ref to the updated mbuf */
1788 tpa_info->tpa_head = rx_mb;
1789 tpa_info->tpa_tail = tpa_info->tpa_head;
1791 rte_prefetch1(rte_pktmbuf_mtod(rx_mb, void *));
1793 if (!tpa_start_flg) {
1794 rx_pkts[rx_pkt] = rx_mb;
1798 ecore_chain_recycle_consumed(&rxq->rx_comp_ring);
1799 sw_comp_cons = ecore_chain_get_cons_idx(&rxq->rx_comp_ring);
1800 if (rx_pkt == nb_pkts) {
1801 PMD_RX_LOG(DEBUG, rxq,
1802 "Budget reached nb_pkts=%u received=%u",
1808 /* Request number of bufferes to be allocated in next loop */
1809 rxq->rx_alloc_count = rx_alloc_count;
1811 rxq->rcv_pkts += rx_pkt;
1813 PMD_RX_LOG(DEBUG, rxq, "rx_pkts=%u core=%d", rx_pkt, rte_lcore_id());
1819 qede_recv_pkts_cmt(void *p_fp_cmt, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
1821 struct qede_fastpath_cmt *fp_cmt = p_fp_cmt;
1822 uint16_t eng0_pkts, eng1_pkts;
1824 eng0_pkts = nb_pkts / 2;
1826 eng0_pkts = qede_recv_pkts(fp_cmt->fp0->rxq, rx_pkts, eng0_pkts);
1828 eng1_pkts = nb_pkts - eng0_pkts;
1830 eng1_pkts = qede_recv_pkts(fp_cmt->fp1->rxq, rx_pkts + eng0_pkts,
1833 return eng0_pkts + eng1_pkts;
1836 /* Populate scatter gather buffer descriptor fields */
1837 static inline uint16_t
1838 qede_encode_sg_bd(struct qede_tx_queue *p_txq, struct rte_mbuf *m_seg,
1839 struct eth_tx_2nd_bd **bd2, struct eth_tx_3rd_bd **bd3,
1842 struct qede_tx_queue *txq = p_txq;
1843 struct eth_tx_bd *tx_bd = NULL;
1845 uint16_t nb_segs = 0;
1847 /* Check for scattered buffers */
1849 if (start_seg == 0) {
1851 *bd2 = (struct eth_tx_2nd_bd *)
1852 ecore_chain_produce(&txq->tx_pbl);
1853 memset(*bd2, 0, sizeof(struct eth_tx_2nd_bd));
1856 mapping = rte_mbuf_data_iova(m_seg);
1857 QEDE_BD_SET_ADDR_LEN(*bd2, mapping, m_seg->data_len);
1858 PMD_TX_LOG(DEBUG, txq, "BD2 len %04x", m_seg->data_len);
1859 } else if (start_seg == 1) {
1861 *bd3 = (struct eth_tx_3rd_bd *)
1862 ecore_chain_produce(&txq->tx_pbl);
1863 memset(*bd3, 0, sizeof(struct eth_tx_3rd_bd));
1866 mapping = rte_mbuf_data_iova(m_seg);
1867 QEDE_BD_SET_ADDR_LEN(*bd3, mapping, m_seg->data_len);
1868 PMD_TX_LOG(DEBUG, txq, "BD3 len %04x", m_seg->data_len);
1870 tx_bd = (struct eth_tx_bd *)
1871 ecore_chain_produce(&txq->tx_pbl);
1872 memset(tx_bd, 0, sizeof(*tx_bd));
1874 mapping = rte_mbuf_data_iova(m_seg);
1875 QEDE_BD_SET_ADDR_LEN(tx_bd, mapping, m_seg->data_len);
1876 PMD_TX_LOG(DEBUG, txq, "BD len %04x", m_seg->data_len);
1879 m_seg = m_seg->next;
1882 /* Return total scattered buffers */
1886 #ifdef RTE_LIBRTE_QEDE_DEBUG_TX
1888 print_tx_bd_info(struct qede_tx_queue *txq,
1889 struct eth_tx_1st_bd *bd1,
1890 struct eth_tx_2nd_bd *bd2,
1891 struct eth_tx_3rd_bd *bd3,
1892 uint64_t tx_ol_flags)
1894 char ol_buf[256] = { 0 }; /* for verbose prints */
1897 PMD_TX_LOG(INFO, txq,
1898 "BD1: nbytes=0x%04x nbds=0x%04x bd_flags=0x%04x bf=0x%04x",
1899 rte_cpu_to_le_16(bd1->nbytes), bd1->data.nbds,
1900 bd1->data.bd_flags.bitfields,
1901 rte_cpu_to_le_16(bd1->data.bitfields));
1903 PMD_TX_LOG(INFO, txq,
1904 "BD2: nbytes=0x%04x bf1=0x%04x bf2=0x%04x tunn_ip=0x%04x\n",
1905 rte_cpu_to_le_16(bd2->nbytes), bd2->data.bitfields1,
1906 bd2->data.bitfields2, bd2->data.tunn_ip_size);
1908 PMD_TX_LOG(INFO, txq,
1909 "BD3: nbytes=0x%04x bf=0x%04x MSS=0x%04x "
1910 "tunn_l4_hdr_start_offset_w=0x%04x tunn_hdr_size=0x%04x\n",
1911 rte_cpu_to_le_16(bd3->nbytes),
1912 rte_cpu_to_le_16(bd3->data.bitfields),
1913 rte_cpu_to_le_16(bd3->data.lso_mss),
1914 bd3->data.tunn_l4_hdr_start_offset_w,
1915 bd3->data.tunn_hdr_size_w);
1917 rte_get_tx_ol_flag_list(tx_ol_flags, ol_buf, sizeof(ol_buf));
1918 PMD_TX_LOG(INFO, txq, "TX offloads = %s\n", ol_buf);
1922 /* TX prepare to check packets meets TX conditions */
1924 #ifdef RTE_LIBRTE_QEDE_DEBUG_TX
1925 qede_xmit_prep_pkts(void *p_txq, struct rte_mbuf **tx_pkts,
1928 struct qede_tx_queue *txq = p_txq;
1930 qede_xmit_prep_pkts(__rte_unused void *p_txq, struct rte_mbuf **tx_pkts,
1937 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
1941 for (i = 0; i < nb_pkts; i++) {
1943 ol_flags = m->ol_flags;
1944 if (ol_flags & PKT_TX_TCP_SEG) {
1945 if (m->nb_segs >= ETH_TX_MAX_BDS_PER_LSO_PACKET) {
1949 /* TBD: confirm its ~9700B for both ? */
1950 if (m->tso_segsz > ETH_TX_MAX_NON_LSO_PKT_LEN) {
1955 if (m->nb_segs >= ETH_TX_MAX_BDS_PER_NON_LSO_PACKET) {
1960 if (ol_flags & QEDE_TX_OFFLOAD_NOTSUP_MASK) {
1961 /* We support only limited tunnel protocols */
1962 if (ol_flags & PKT_TX_TUNNEL_MASK) {
1965 temp = ol_flags & PKT_TX_TUNNEL_MASK;
1966 if (temp == PKT_TX_TUNNEL_VXLAN ||
1967 temp == PKT_TX_TUNNEL_GENEVE ||
1968 temp == PKT_TX_TUNNEL_MPLSINUDP ||
1969 temp == PKT_TX_TUNNEL_GRE)
1973 rte_errno = ENOTSUP;
1977 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
1978 ret = rte_validate_tx_offload(m);
1986 #ifdef RTE_LIBRTE_QEDE_DEBUG_TX
1987 if (unlikely(i != nb_pkts))
1988 PMD_TX_LOG(ERR, txq, "TX prepare failed for %u\n",
1994 #define MPLSINUDP_HDR_SIZE (12)
1996 #ifdef RTE_LIBRTE_QEDE_DEBUG_TX
1998 qede_mpls_tunn_tx_sanity_check(struct rte_mbuf *mbuf,
1999 struct qede_tx_queue *txq)
2001 if (((mbuf->outer_l2_len + mbuf->outer_l3_len) / 2) > 0xff)
2002 PMD_TX_LOG(ERR, txq, "tunn_l4_hdr_start_offset overflow\n");
2003 if (((mbuf->outer_l2_len + mbuf->outer_l3_len +
2004 MPLSINUDP_HDR_SIZE) / 2) > 0xff)
2005 PMD_TX_LOG(ERR, txq, "tunn_hdr_size overflow\n");
2006 if (((mbuf->l2_len - MPLSINUDP_HDR_SIZE) / 2) >
2007 ETH_TX_DATA_2ND_BD_TUNN_INNER_L2_HDR_SIZE_W_MASK)
2008 PMD_TX_LOG(ERR, txq, "inner_l2_hdr_size overflow\n");
2009 if (((mbuf->l2_len - MPLSINUDP_HDR_SIZE + mbuf->l3_len) / 2) >
2010 ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK)
2011 PMD_TX_LOG(ERR, txq, "inner_l2_hdr_size overflow\n");
2016 qede_xmit_pkts(void *p_txq, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
2018 struct qede_tx_queue *txq = p_txq;
2019 struct qede_dev *qdev = txq->qdev;
2020 struct ecore_dev *edev = &qdev->edev;
2021 struct rte_mbuf *mbuf;
2022 struct rte_mbuf *m_seg = NULL;
2023 uint16_t nb_tx_pkts;
2027 uint16_t nb_pkt_sent = 0;
2031 __rte_unused bool tunn_flg;
2032 bool tunn_ipv6_ext_flg;
2033 struct eth_tx_1st_bd *bd1;
2034 struct eth_tx_2nd_bd *bd2;
2035 struct eth_tx_3rd_bd *bd3;
2036 uint64_t tx_ol_flags;
2040 uint8_t bd1_bd_flags_bf;
2049 uint8_t tunn_l4_hdr_start_offset;
2050 uint8_t tunn_hdr_size;
2051 uint8_t inner_l2_hdr_size;
2052 uint16_t inner_l4_hdr_offset;
2054 if (unlikely(txq->nb_tx_avail < txq->tx_free_thresh)) {
2055 PMD_TX_LOG(DEBUG, txq, "send=%u avail=%u free_thresh=%u",
2056 nb_pkts, txq->nb_tx_avail, txq->tx_free_thresh);
2057 qede_process_tx_compl(edev, txq);
2060 nb_tx_pkts = nb_pkts;
2061 bd_prod = rte_cpu_to_le_16(ecore_chain_get_prod_idx(&txq->tx_pbl));
2062 while (nb_tx_pkts--) {
2063 /* Init flags/values */
2073 bd1_bd_flags_bf = 0;
2078 mplsoudp_flg = false;
2079 tunn_ipv6_ext_flg = false;
2081 tunn_l4_hdr_start_offset = 0;
2086 /* Check minimum TX BDS availability against available BDs */
2087 if (unlikely(txq->nb_tx_avail < mbuf->nb_segs))
2090 tx_ol_flags = mbuf->ol_flags;
2091 bd1_bd_flags_bf |= 1 << ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT;
2093 /* TX prepare would have already checked supported tunnel Tx
2094 * offloads. Don't rely on pkt_type marked by Rx, instead use
2095 * tx_ol_flags to decide.
2097 tunn_flg = !!(tx_ol_flags & PKT_TX_TUNNEL_MASK);
2100 /* Check against max which is Tunnel IPv6 + ext */
2101 if (unlikely(txq->nb_tx_avail <
2102 ETH_TX_MIN_BDS_PER_TUNN_IPV6_WITH_EXT_PKT))
2105 /* First indicate its a tunnel pkt */
2106 bd1_bf |= ETH_TX_DATA_1ST_BD_TUNN_FLAG_MASK <<
2107 ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT;
2108 /* Legacy FW had flipped behavior in regard to this bit
2109 * i.e. it needed to set to prevent FW from touching
2110 * encapsulated packets when it didn't need to.
2112 if (unlikely(txq->is_legacy)) {
2114 ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT;
2117 /* Outer IP checksum offload */
2118 if (tx_ol_flags & (PKT_TX_OUTER_IP_CKSUM |
2119 PKT_TX_OUTER_IPV4)) {
2121 ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_MASK <<
2122 ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_SHIFT;
2126 * Currently, only inner checksum offload in MPLS-in-UDP
2127 * tunnel with one MPLS label is supported. Both outer
2128 * and inner layers lengths need to be provided in
2131 if ((tx_ol_flags & PKT_TX_TUNNEL_MASK) ==
2132 PKT_TX_TUNNEL_MPLSINUDP) {
2133 mplsoudp_flg = true;
2134 #ifdef RTE_LIBRTE_QEDE_DEBUG_TX
2135 qede_mpls_tunn_tx_sanity_check(mbuf, txq);
2137 /* Outer L4 offset in two byte words */
2138 tunn_l4_hdr_start_offset =
2139 (mbuf->outer_l2_len + mbuf->outer_l3_len) / 2;
2140 /* Tunnel header size in two byte words */
2141 tunn_hdr_size = (mbuf->outer_l2_len +
2142 mbuf->outer_l3_len +
2143 MPLSINUDP_HDR_SIZE) / 2;
2144 /* Inner L2 header size in two byte words */
2145 inner_l2_hdr_size = (mbuf->l2_len -
2146 MPLSINUDP_HDR_SIZE) / 2;
2147 /* Inner L4 header offset from the beggining
2148 * of inner packet in two byte words
2150 inner_l4_hdr_offset = (mbuf->l2_len -
2151 MPLSINUDP_HDR_SIZE + mbuf->l3_len) / 2;
2153 /* Inner L2 size and address type */
2154 bd2_bf1 |= (inner_l2_hdr_size &
2155 ETH_TX_DATA_2ND_BD_TUNN_INNER_L2_HDR_SIZE_W_MASK) <<
2156 ETH_TX_DATA_2ND_BD_TUNN_INNER_L2_HDR_SIZE_W_SHIFT;
2157 bd2_bf1 |= (UNICAST_ADDRESS &
2158 ETH_TX_DATA_2ND_BD_TUNN_INNER_ETH_TYPE_MASK) <<
2159 ETH_TX_DATA_2ND_BD_TUNN_INNER_ETH_TYPE_SHIFT;
2160 /* Treated as IPv6+Ext */
2162 1 << ETH_TX_DATA_2ND_BD_TUNN_IPV6_EXT_SHIFT;
2164 /* Mark inner IPv6 if present */
2165 if (tx_ol_flags & PKT_TX_IPV6)
2167 1 << ETH_TX_DATA_2ND_BD_TUNN_INNER_IPV6_SHIFT;
2169 /* Inner L4 offsets */
2170 if ((tx_ol_flags & (PKT_TX_IPV4 | PKT_TX_IPV6)) &&
2171 (tx_ol_flags & (PKT_TX_UDP_CKSUM |
2172 PKT_TX_TCP_CKSUM))) {
2173 /* Determines if BD3 is needed */
2174 tunn_ipv6_ext_flg = true;
2175 if ((tx_ol_flags & PKT_TX_L4_MASK) ==
2178 1 << ETH_TX_DATA_2ND_BD_L4_UDP_SHIFT;
2181 /* TODO other pseudo checksum modes are
2185 ETH_L4_PSEUDO_CSUM_CORRECT_LENGTH <<
2186 ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_SHIFT;
2187 bd2_bf2 |= (inner_l4_hdr_offset &
2188 ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK) <<
2189 ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT;
2191 } /* End MPLSoUDP */
2192 } /* End Tunnel handling */
2194 if (tx_ol_flags & PKT_TX_TCP_SEG) {
2196 if (unlikely(txq->nb_tx_avail <
2197 ETH_TX_MIN_BDS_PER_LSO_PKT))
2199 /* For LSO, packet header and payload must reside on
2200 * buffers pointed by different BDs. Using BD1 for HDR
2201 * and BD2 onwards for data.
2203 hdr_size = mbuf->l2_len + mbuf->l3_len + mbuf->l4_len;
2205 hdr_size += mbuf->outer_l2_len +
2208 bd1_bd_flags_bf |= 1 << ETH_TX_1ST_BD_FLAGS_LSO_SHIFT;
2210 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT;
2211 /* PKT_TX_TCP_SEG implies PKT_TX_TCP_CKSUM */
2213 1 << ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT;
2214 mss = rte_cpu_to_le_16(mbuf->tso_segsz);
2215 /* Using one header BD */
2216 bd3_bf |= rte_cpu_to_le_16(1 <<
2217 ETH_TX_DATA_3RD_BD_HDR_NBD_SHIFT);
2219 if (unlikely(txq->nb_tx_avail <
2220 ETH_TX_MIN_BDS_PER_NON_LSO_PKT))
2223 (mbuf->pkt_len & ETH_TX_DATA_1ST_BD_PKT_LEN_MASK)
2224 << ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT;
2227 /* Descriptor based VLAN insertion */
2228 if (tx_ol_flags & PKT_TX_VLAN_PKT) {
2229 vlan = rte_cpu_to_le_16(mbuf->vlan_tci);
2231 1 << ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_SHIFT;
2234 /* Offload the IP checksum in the hardware */
2235 if (tx_ol_flags & PKT_TX_IP_CKSUM) {
2237 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT;
2238 /* There's no DPDK flag to request outer-L4 csum
2239 * offload. But in the case of tunnel if inner L3 or L4
2240 * csum offload is requested then we need to force
2241 * recalculation of L4 tunnel header csum also.
2243 if (tunn_flg && ((tx_ol_flags & PKT_TX_TUNNEL_MASK) !=
2244 PKT_TX_TUNNEL_GRE)) {
2246 ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_MASK <<
2247 ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_SHIFT;
2251 /* L4 checksum offload (tcp or udp) */
2252 if ((tx_ol_flags & (PKT_TX_IPV4 | PKT_TX_IPV6)) &&
2253 (tx_ol_flags & (PKT_TX_UDP_CKSUM | PKT_TX_TCP_CKSUM))) {
2255 1 << ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT;
2256 /* There's no DPDK flag to request outer-L4 csum
2257 * offload. But in the case of tunnel if inner L3 or L4
2258 * csum offload is requested then we need to force
2259 * recalculation of L4 tunnel header csum also.
2263 ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_MASK <<
2264 ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_SHIFT;
2268 /* Fill the entry in the SW ring and the BDs in the FW ring */
2270 txq->sw_tx_ring[idx].mbuf = mbuf;
2273 bd1 = (struct eth_tx_1st_bd *)ecore_chain_produce(&txq->tx_pbl);
2274 memset(bd1, 0, sizeof(struct eth_tx_1st_bd));
2277 /* Map MBUF linear data for DMA and set in the BD1 */
2278 QEDE_BD_SET_ADDR_LEN(bd1, rte_mbuf_data_iova(mbuf),
2280 bd1->data.bitfields = rte_cpu_to_le_16(bd1_bf);
2281 bd1->data.bd_flags.bitfields = bd1_bd_flags_bf;
2282 bd1->data.vlan = vlan;
2284 if (lso_flg || mplsoudp_flg) {
2285 bd2 = (struct eth_tx_2nd_bd *)ecore_chain_produce
2287 memset(bd2, 0, sizeof(struct eth_tx_2nd_bd));
2291 QEDE_BD_SET_ADDR_LEN(bd1, rte_mbuf_data_iova(mbuf),
2294 QEDE_BD_SET_ADDR_LEN(bd2, (hdr_size +
2295 rte_mbuf_data_iova(mbuf)),
2296 mbuf->data_len - hdr_size);
2297 bd2->data.bitfields1 = rte_cpu_to_le_16(bd2_bf1);
2299 bd2->data.bitfields2 =
2300 rte_cpu_to_le_16(bd2_bf2);
2302 bd2->data.tunn_ip_size =
2303 rte_cpu_to_le_16(mbuf->outer_l3_len);
2306 if (lso_flg || (mplsoudp_flg && tunn_ipv6_ext_flg)) {
2307 bd3 = (struct eth_tx_3rd_bd *)
2308 ecore_chain_produce(&txq->tx_pbl);
2309 memset(bd3, 0, sizeof(struct eth_tx_3rd_bd));
2311 bd3->data.bitfields = rte_cpu_to_le_16(bd3_bf);
2313 bd3->data.lso_mss = mss;
2315 bd3->data.tunn_l4_hdr_start_offset_w =
2316 tunn_l4_hdr_start_offset;
2317 bd3->data.tunn_hdr_size_w =
2323 /* Handle fragmented MBUF */
2326 /* Encode scatter gather buffer descriptors if required */
2327 nb_frags = qede_encode_sg_bd(txq, m_seg, &bd2, &bd3, nbds - 1);
2328 bd1->data.nbds = nbds + nb_frags;
2330 txq->nb_tx_avail -= bd1->data.nbds;
2333 rte_cpu_to_le_16(ecore_chain_get_prod_idx(&txq->tx_pbl));
2334 #ifdef RTE_LIBRTE_QEDE_DEBUG_TX
2335 print_tx_bd_info(txq, bd1, bd2, bd3, tx_ol_flags);
2341 /* Write value of prod idx into bd_prod */
2342 txq->tx_db.data.bd_prod = bd_prod;
2344 rte_compiler_barrier();
2345 DIRECT_REG_WR_RELAXED(edev, txq->doorbell_addr, txq->tx_db.raw);
2348 /* Check again for Tx completions */
2349 qede_process_tx_compl(edev, txq);
2351 PMD_TX_LOG(DEBUG, txq, "to_send=%u sent=%u bd_prod=%u core=%d",
2352 nb_pkts, nb_pkt_sent, TX_PROD(txq), rte_lcore_id());
2358 qede_xmit_pkts_cmt(void *p_fp_cmt, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
2360 struct qede_fastpath_cmt *fp_cmt = p_fp_cmt;
2361 uint16_t eng0_pkts, eng1_pkts;
2363 eng0_pkts = nb_pkts / 2;
2365 eng0_pkts = qede_xmit_pkts(fp_cmt->fp0->txq, tx_pkts, eng0_pkts);
2367 eng1_pkts = nb_pkts - eng0_pkts;
2369 eng1_pkts = qede_xmit_pkts(fp_cmt->fp1->txq, tx_pkts + eng0_pkts,
2372 return eng0_pkts + eng1_pkts;
2376 qede_rxtx_pkts_dummy(__rte_unused void *p_rxq,
2377 __rte_unused struct rte_mbuf **pkts,
2378 __rte_unused uint16_t nb_pkts)
2384 /* this function does a fake walk through over completion queue
2385 * to calculate number of BDs used by HW.
2386 * At the end, it restores the state of completion queue.
2389 qede_parse_fp_cqe(struct qede_rx_queue *rxq)
2391 uint16_t hw_comp_cons, sw_comp_cons, bd_count = 0;
2392 union eth_rx_cqe *cqe, *orig_cqe = NULL;
2394 hw_comp_cons = rte_le_to_cpu_16(*rxq->hw_cons_ptr);
2395 sw_comp_cons = ecore_chain_get_cons_idx(&rxq->rx_comp_ring);
2397 if (hw_comp_cons == sw_comp_cons)
2400 /* Get the CQE from the completion ring */
2401 cqe = (union eth_rx_cqe *)ecore_chain_consume(&rxq->rx_comp_ring);
2404 while (sw_comp_cons != hw_comp_cons) {
2405 switch (cqe->fast_path_regular.type) {
2406 case ETH_RX_CQE_TYPE_REGULAR:
2407 bd_count += cqe->fast_path_regular.bd_num;
2409 case ETH_RX_CQE_TYPE_TPA_END:
2410 bd_count += cqe->fast_path_tpa_end.num_of_bds;
2417 (union eth_rx_cqe *)ecore_chain_consume(&rxq->rx_comp_ring);
2418 sw_comp_cons = ecore_chain_get_cons_idx(&rxq->rx_comp_ring);
2421 /* revert comp_ring to original state */
2422 ecore_chain_set_cons(&rxq->rx_comp_ring, sw_comp_cons, orig_cqe);
2428 qede_rx_descriptor_status(void *p_rxq, uint16_t offset)
2430 uint16_t hw_bd_cons, sw_bd_cons, sw_bd_prod;
2431 uint16_t produced, consumed;
2432 struct qede_rx_queue *rxq = p_rxq;
2434 if (offset > rxq->nb_rx_desc)
2437 sw_bd_cons = ecore_chain_get_cons_idx(&rxq->rx_bd_ring);
2438 sw_bd_prod = ecore_chain_get_prod_idx(&rxq->rx_bd_ring);
2440 /* find BDs used by HW from completion queue elements */
2441 hw_bd_cons = sw_bd_cons + qede_parse_fp_cqe(rxq);
2443 if (hw_bd_cons < sw_bd_cons)
2444 /* wraparound case */
2445 consumed = (0xffff - sw_bd_cons) + hw_bd_cons;
2447 consumed = hw_bd_cons - sw_bd_cons;
2449 if (offset <= consumed)
2450 return RTE_ETH_RX_DESC_DONE;
2452 if (sw_bd_prod < sw_bd_cons)
2453 /* wraparound case */
2454 produced = (0xffff - sw_bd_cons) + sw_bd_prod;
2456 produced = sw_bd_prod - sw_bd_cons;
2458 if (offset <= produced)
2459 return RTE_ETH_RX_DESC_AVAIL;
2461 return RTE_ETH_RX_DESC_UNAVAIL;