2 * Copyright (c) 2016 Solarflare Communications Inc.
5 * This software was jointly developed between OKTET Labs (under contract
6 * for Solarflare) and Solarflare Communications, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * 1. Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
19 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include <rte_mempool.h>
35 #include "sfc_debug.h"
39 #include "sfc_tweak.h"
42 * Maximum number of Rx queue flush attempt in the case of failure or
45 #define SFC_RX_QFLUSH_ATTEMPTS (3)
48 * Time to wait between event queue polling attempts when waiting for Rx
49 * queue flush done or failed events.
51 #define SFC_RX_QFLUSH_POLL_WAIT_MS (1)
54 * Maximum number of event queue polling attempts when waiting for Rx queue
55 * flush done or failed events. It defines Rx queue flush attempt timeout
56 * together with SFC_RX_QFLUSH_POLL_WAIT_MS.
58 #define SFC_RX_QFLUSH_POLL_ATTEMPTS (2000)
61 sfc_rx_qflush_done(struct sfc_rxq *rxq)
63 rxq->state |= SFC_RXQ_FLUSHED;
64 rxq->state &= ~SFC_RXQ_FLUSHING;
68 sfc_rx_qflush_failed(struct sfc_rxq *rxq)
70 rxq->state |= SFC_RXQ_FLUSH_FAILED;
71 rxq->state &= ~SFC_RXQ_FLUSHING;
75 sfc_rx_qrefill(struct sfc_rxq *rxq)
77 unsigned int free_space;
79 void *objs[SFC_RX_REFILL_BULK];
80 efsys_dma_addr_t addr[RTE_DIM(objs)];
81 unsigned int added = rxq->added;
84 struct sfc_rx_sw_desc *rxd;
86 uint8_t port_id = rxq->port_id;
88 free_space = EFX_RXQ_LIMIT(rxq->ptr_mask + 1) -
89 (added - rxq->completed);
91 if (free_space < rxq->refill_threshold)
94 bulks = free_space / RTE_DIM(objs);
96 id = added & rxq->ptr_mask;
98 if (rte_mempool_get_bulk(rxq->refill_mb_pool, objs,
101 * It is hardly a safe way to increment counter
102 * from different contexts, but all PMDs do it.
104 rxq->evq->sa->eth_dev->data->rx_mbuf_alloc_failed +=
109 for (i = 0; i < RTE_DIM(objs);
110 ++i, id = (id + 1) & rxq->ptr_mask) {
113 rxd = &rxq->sw_desc[id];
116 rte_mbuf_refcnt_set(m, 1);
117 m->data_off = RTE_PKTMBUF_HEADROOM;
122 addr[i] = rte_pktmbuf_mtophys(m);
125 efx_rx_qpost(rxq->common, addr, rxq->buf_size,
126 RTE_DIM(objs), rxq->completed, added);
127 added += RTE_DIM(objs);
130 /* Push doorbell if something is posted */
131 if (rxq->added != added) {
133 efx_rx_qpush(rxq->common, added, &rxq->pushed);
138 sfc_rx_desc_flags_to_offload_flags(const unsigned int desc_flags)
140 uint64_t mbuf_flags = 0;
142 switch (desc_flags & (EFX_PKT_IPV4 | EFX_CKSUM_IPV4)) {
143 case (EFX_PKT_IPV4 | EFX_CKSUM_IPV4):
144 mbuf_flags |= PKT_RX_IP_CKSUM_GOOD;
147 mbuf_flags |= PKT_RX_IP_CKSUM_BAD;
150 RTE_BUILD_BUG_ON(PKT_RX_IP_CKSUM_UNKNOWN != 0);
151 SFC_ASSERT((mbuf_flags & PKT_RX_IP_CKSUM_MASK) ==
152 PKT_RX_IP_CKSUM_UNKNOWN);
156 switch ((desc_flags &
157 (EFX_PKT_TCP | EFX_PKT_UDP | EFX_CKSUM_TCPUDP))) {
158 case (EFX_PKT_TCP | EFX_CKSUM_TCPUDP):
159 case (EFX_PKT_UDP | EFX_CKSUM_TCPUDP):
160 mbuf_flags |= PKT_RX_L4_CKSUM_GOOD;
164 mbuf_flags |= PKT_RX_L4_CKSUM_BAD;
167 RTE_BUILD_BUG_ON(PKT_RX_L4_CKSUM_UNKNOWN != 0);
168 SFC_ASSERT((mbuf_flags & PKT_RX_L4_CKSUM_MASK) ==
169 PKT_RX_L4_CKSUM_UNKNOWN);
177 sfc_rx_desc_flags_to_packet_type(const unsigned int desc_flags)
179 return RTE_PTYPE_L2_ETHER |
180 ((desc_flags & EFX_PKT_IPV4) ?
181 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN : 0) |
182 ((desc_flags & EFX_PKT_IPV6) ?
183 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN : 0) |
184 ((desc_flags & EFX_PKT_TCP) ? RTE_PTYPE_L4_TCP : 0) |
185 ((desc_flags & EFX_PKT_UDP) ? RTE_PTYPE_L4_UDP : 0);
189 sfc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
191 struct sfc_rxq *rxq = rx_queue;
192 unsigned int completed;
193 unsigned int prefix_size = rxq->prefix_size;
194 unsigned int done_pkts = 0;
195 boolean_t discard_next = B_FALSE;
197 if (unlikely((rxq->state & SFC_RXQ_RUNNING) == 0))
200 sfc_ev_qpoll(rxq->evq);
202 completed = rxq->completed;
203 while (completed != rxq->pending && done_pkts < nb_pkts) {
205 struct sfc_rx_sw_desc *rxd;
207 unsigned int seg_len;
208 unsigned int desc_flags;
210 id = completed++ & rxq->ptr_mask;
211 rxd = &rxq->sw_desc[id];
213 desc_flags = rxd->flags;
218 if (desc_flags & (EFX_ADDR_MISMATCH | EFX_DISCARD))
221 if (desc_flags & EFX_PKT_CONT)
224 if (desc_flags & EFX_PKT_PREFIX_LEN) {
228 rc = efx_pseudo_hdr_pkt_length_get(rxq->common,
229 rte_pktmbuf_mtod(m, uint8_t *), &tmp_size);
233 seg_len = rxd->size - prefix_size;
236 m->data_off += prefix_size;
237 rte_pktmbuf_data_len(m) = seg_len;
238 rte_pktmbuf_pkt_len(m) = seg_len;
240 m->ol_flags = sfc_rx_desc_flags_to_offload_flags(desc_flags);
241 m->packet_type = sfc_rx_desc_flags_to_packet_type(desc_flags);
248 discard_next = ((desc_flags & EFX_PKT_CONT) != 0);
249 rte_mempool_put(rxq->refill_mb_pool, m);
253 rxq->completed = completed;
261 sfc_rx_qdesc_npending(struct sfc_adapter *sa, unsigned int sw_index)
265 SFC_ASSERT(sw_index < sa->rxq_count);
266 rxq = sa->rxq_info[sw_index].rxq;
268 if (rxq == NULL || (rxq->state & SFC_RXQ_RUNNING) == 0)
271 sfc_ev_qpoll(rxq->evq);
273 return rxq->pending - rxq->completed;
277 sfc_rx_qpurge(struct sfc_rxq *rxq)
280 struct sfc_rx_sw_desc *rxd;
282 for (i = rxq->completed; i != rxq->added; ++i) {
283 rxd = &rxq->sw_desc[i & rxq->ptr_mask];
284 rte_mempool_put(rxq->refill_mb_pool, rxd->mbuf);
290 sfc_rx_qflush(struct sfc_adapter *sa, unsigned int sw_index)
293 unsigned int retry_count;
294 unsigned int wait_count;
296 rxq = sa->rxq_info[sw_index].rxq;
297 SFC_ASSERT(rxq->state & SFC_RXQ_STARTED);
300 * Retry Rx queue flushing in the case of flush failed or
301 * timeout. In the worst case it can delay for 6 seconds.
303 for (retry_count = 0;
304 ((rxq->state & SFC_RXQ_FLUSHED) == 0) &&
305 (retry_count < SFC_RX_QFLUSH_ATTEMPTS);
307 if (efx_rx_qflush(rxq->common) != 0) {
308 rxq->state |= SFC_RXQ_FLUSH_FAILED;
311 rxq->state &= ~SFC_RXQ_FLUSH_FAILED;
312 rxq->state |= SFC_RXQ_FLUSHING;
315 * Wait for Rx queue flush done or failed event at least
316 * SFC_RX_QFLUSH_POLL_WAIT_MS milliseconds and not more
317 * than 2 seconds (SFC_RX_QFLUSH_POLL_WAIT_MS multiplied
318 * by SFC_RX_QFLUSH_POLL_ATTEMPTS).
322 rte_delay_ms(SFC_RX_QFLUSH_POLL_WAIT_MS);
323 sfc_ev_qpoll(rxq->evq);
324 } while ((rxq->state & SFC_RXQ_FLUSHING) &&
325 (wait_count++ < SFC_RX_QFLUSH_POLL_ATTEMPTS));
327 if (rxq->state & SFC_RXQ_FLUSHING)
328 sfc_err(sa, "RxQ %u flush timed out", sw_index);
330 if (rxq->state & SFC_RXQ_FLUSH_FAILED)
331 sfc_err(sa, "RxQ %u flush failed", sw_index);
333 if (rxq->state & SFC_RXQ_FLUSHED)
334 sfc_info(sa, "RxQ %u flushed", sw_index);
341 sfc_rx_qstart(struct sfc_adapter *sa, unsigned int sw_index)
343 struct sfc_rxq_info *rxq_info;
348 sfc_log_init(sa, "sw_index=%u", sw_index);
350 SFC_ASSERT(sw_index < sa->rxq_count);
352 rxq_info = &sa->rxq_info[sw_index];
354 SFC_ASSERT(rxq->state == SFC_RXQ_INITIALIZED);
358 rc = sfc_ev_qstart(sa, evq->evq_index);
362 rc = efx_rx_qcreate(sa->nic, rxq->hw_index, 0, rxq_info->type,
363 &rxq->mem, rxq_info->entries,
364 0 /* not used on EF10 */, evq->common,
367 goto fail_rx_qcreate;
369 efx_rx_qenable(rxq->common);
371 rxq->pending = rxq->completed = rxq->added = rxq->pushed = 0;
373 rxq->state |= (SFC_RXQ_STARTED | SFC_RXQ_RUNNING);
378 rc = efx_mac_filter_default_rxq_set(sa->nic, rxq->common,
381 goto fail_mac_filter_default_rxq_set;
384 /* It seems to be used by DPDK for debug purposes only ('rte_ether') */
385 sa->eth_dev->data->rx_queue_state[sw_index] =
386 RTE_ETH_QUEUE_STATE_STARTED;
390 fail_mac_filter_default_rxq_set:
391 sfc_rx_qflush(sa, sw_index);
394 sfc_ev_qstop(sa, evq->evq_index);
401 sfc_rx_qstop(struct sfc_adapter *sa, unsigned int sw_index)
403 struct sfc_rxq_info *rxq_info;
406 sfc_log_init(sa, "sw_index=%u", sw_index);
408 SFC_ASSERT(sw_index < sa->rxq_count);
410 rxq_info = &sa->rxq_info[sw_index];
412 SFC_ASSERT(rxq->state & SFC_RXQ_STARTED);
414 /* It seems to be used by DPDK for debug purposes only ('rte_ether') */
415 sa->eth_dev->data->rx_queue_state[sw_index] =
416 RTE_ETH_QUEUE_STATE_STOPPED;
418 rxq->state &= ~SFC_RXQ_RUNNING;
421 efx_mac_filter_default_rxq_clear(sa->nic);
423 sfc_rx_qflush(sa, sw_index);
425 rxq->state = SFC_RXQ_INITIALIZED;
427 efx_rx_qdestroy(rxq->common);
429 sfc_ev_qstop(sa, rxq->evq->evq_index);
433 sfc_rx_qcheck_conf(struct sfc_adapter *sa, uint16_t nb_rx_desc,
434 const struct rte_eth_rxconf *rx_conf)
436 const uint16_t rx_free_thresh_max = EFX_RXQ_LIMIT(nb_rx_desc);
439 if (rx_conf->rx_thresh.pthresh != 0 ||
440 rx_conf->rx_thresh.hthresh != 0 ||
441 rx_conf->rx_thresh.wthresh != 0) {
443 "RxQ prefetch/host/writeback thresholds are not supported");
447 if (rx_conf->rx_free_thresh > rx_free_thresh_max) {
449 "RxQ free threshold too large: %u vs maximum %u",
450 rx_conf->rx_free_thresh, rx_free_thresh_max);
454 if (rx_conf->rx_drop_en == 0) {
455 sfc_err(sa, "RxQ drop disable is not supported");
459 if (rx_conf->rx_deferred_start != 0) {
460 sfc_err(sa, "RxQ deferred start is not supported");
468 sfc_rx_mbuf_data_alignment(struct rte_mempool *mb_pool)
473 /* The mbuf object itself is always cache line aligned */
474 order = rte_bsf32(RTE_CACHE_LINE_SIZE);
476 /* Data offset from mbuf object start */
477 data_off = sizeof(struct rte_mbuf) + rte_pktmbuf_priv_size(mb_pool) +
478 RTE_PKTMBUF_HEADROOM;
480 order = MIN(order, rte_bsf32(data_off));
482 return 1u << (order - 1);
486 sfc_rx_mb_pool_buf_size(struct sfc_adapter *sa, struct rte_mempool *mb_pool)
488 const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
489 const uint32_t nic_align_start = MAX(1, encp->enc_rx_buf_align_start);
490 const uint32_t nic_align_end = MAX(1, encp->enc_rx_buf_align_end);
492 unsigned int buf_aligned;
493 unsigned int start_alignment;
494 unsigned int end_padding_alignment;
496 /* Below it is assumed that both alignments are power of 2 */
497 SFC_ASSERT(rte_is_power_of_2(nic_align_start));
498 SFC_ASSERT(rte_is_power_of_2(nic_align_end));
501 * mbuf is always cache line aligned, double-check
502 * that it meets rx buffer start alignment requirements.
505 /* Start from mbuf pool data room size */
506 buf_size = rte_pktmbuf_data_room_size(mb_pool);
508 /* Remove headroom */
509 if (buf_size <= RTE_PKTMBUF_HEADROOM) {
511 "RxQ mbuf pool %s object data room size %u is smaller than headroom %u",
512 mb_pool->name, buf_size, RTE_PKTMBUF_HEADROOM);
515 buf_size -= RTE_PKTMBUF_HEADROOM;
517 /* Calculate guaranteed data start alignment */
518 buf_aligned = sfc_rx_mbuf_data_alignment(mb_pool);
520 /* Reserve space for start alignment */
521 if (buf_aligned < nic_align_start) {
522 start_alignment = nic_align_start - buf_aligned;
523 if (buf_size <= start_alignment) {
525 "RxQ mbuf pool %s object data room size %u is insufficient for headroom %u and buffer start alignment %u required by NIC",
527 rte_pktmbuf_data_room_size(mb_pool),
528 RTE_PKTMBUF_HEADROOM, start_alignment);
531 buf_aligned = nic_align_start;
532 buf_size -= start_alignment;
537 /* Make sure that end padding does not write beyond the buffer */
538 if (buf_aligned < nic_align_end) {
540 * Estimate space which can be lost. If guarnteed buffer
541 * size is odd, lost space is (nic_align_end - 1). More
542 * accurate formula is below.
544 end_padding_alignment = nic_align_end -
545 MIN(buf_aligned, 1u << (rte_bsf32(buf_size) - 1));
546 if (buf_size <= end_padding_alignment) {
548 "RxQ mbuf pool %s object data room size %u is insufficient for headroom %u, buffer start alignment %u and end padding alignment %u required by NIC",
550 rte_pktmbuf_data_room_size(mb_pool),
551 RTE_PKTMBUF_HEADROOM, start_alignment,
552 end_padding_alignment);
555 buf_size -= end_padding_alignment;
558 * Start is aligned the same or better than end,
561 buf_size = P2ALIGN(buf_size, nic_align_end);
568 sfc_rx_qinit(struct sfc_adapter *sa, unsigned int sw_index,
569 uint16_t nb_rx_desc, unsigned int socket_id,
570 const struct rte_eth_rxconf *rx_conf,
571 struct rte_mempool *mb_pool)
573 const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
576 struct sfc_rxq_info *rxq_info;
577 unsigned int evq_index;
581 rc = sfc_rx_qcheck_conf(sa, nb_rx_desc, rx_conf);
585 buf_size = sfc_rx_mb_pool_buf_size(sa, mb_pool);
587 sfc_err(sa, "RxQ %u mbuf pool object size is too small",
593 if ((buf_size < sa->port.pdu + encp->enc_rx_prefix_size) &&
594 !sa->eth_dev->data->dev_conf.rxmode.enable_scatter) {
595 sfc_err(sa, "Rx scatter is disabled and RxQ %u mbuf pool "
596 "object size is too small", sw_index);
597 sfc_err(sa, "RxQ %u calculated Rx buffer size is %u vs "
598 "PDU size %u plus Rx prefix %u bytes",
599 sw_index, buf_size, (unsigned int)sa->port.pdu,
600 encp->enc_rx_prefix_size);
605 SFC_ASSERT(sw_index < sa->rxq_count);
606 rxq_info = &sa->rxq_info[sw_index];
608 SFC_ASSERT(nb_rx_desc <= rxq_info->max_entries);
609 rxq_info->entries = nb_rx_desc;
610 rxq_info->type = EFX_RXQ_TYPE_DEFAULT;
612 evq_index = sfc_evq_index_by_rxq_sw_index(sa, sw_index);
614 rc = sfc_ev_qinit(sa, evq_index, rxq_info->entries, socket_id);
618 evq = sa->evq_info[evq_index].evq;
621 rxq = rte_zmalloc_socket("sfc-rxq", sizeof(*rxq), RTE_CACHE_LINE_SIZE,
626 rc = sfc_dma_alloc(sa, "rxq", sw_index, EFX_RXQ_SIZE(rxq_info->entries),
627 socket_id, &rxq->mem);
632 rxq->sw_desc = rte_calloc_socket("sfc-rxq-sw_desc", rxq_info->entries,
633 sizeof(*rxq->sw_desc),
634 RTE_CACHE_LINE_SIZE, socket_id);
635 if (rxq->sw_desc == NULL)
636 goto fail_desc_alloc;
640 rxq->ptr_mask = rxq_info->entries - 1;
641 rxq->refill_threshold = rx_conf->rx_free_thresh;
642 rxq->refill_mb_pool = mb_pool;
643 rxq->buf_size = buf_size;
644 rxq->hw_index = sw_index;
645 rxq->port_id = sa->eth_dev->data->port_id;
647 /* Cache limits required on datapath in RxQ structure */
648 rxq->batch_max = encp->enc_rx_batch_max;
649 rxq->prefix_size = encp->enc_rx_prefix_size;
651 rxq->state = SFC_RXQ_INITIALIZED;
658 sfc_dma_free(sa, &rxq->mem);
664 sfc_ev_qfini(sa, evq_index);
667 rxq_info->entries = 0;
670 sfc_log_init(sa, "failed %d", rc);
675 sfc_rx_qfini(struct sfc_adapter *sa, unsigned int sw_index)
677 struct sfc_rxq_info *rxq_info;
680 SFC_ASSERT(sw_index < sa->rxq_count);
682 rxq_info = &sa->rxq_info[sw_index];
685 SFC_ASSERT(rxq->state == SFC_RXQ_INITIALIZED);
687 rxq_info->rxq = NULL;
688 rxq_info->entries = 0;
690 rte_free(rxq->sw_desc);
691 sfc_dma_free(sa, &rxq->mem);
696 sfc_rx_start(struct sfc_adapter *sa)
698 unsigned int sw_index;
701 sfc_log_init(sa, "rxq_count=%u", sa->rxq_count);
703 rc = efx_rx_init(sa->nic);
707 for (sw_index = 0; sw_index < sa->rxq_count; ++sw_index) {
708 rc = sfc_rx_qstart(sa, sw_index);
716 while (sw_index-- > 0)
717 sfc_rx_qstop(sa, sw_index);
719 efx_rx_fini(sa->nic);
722 sfc_log_init(sa, "failed %d", rc);
727 sfc_rx_stop(struct sfc_adapter *sa)
729 unsigned int sw_index;
731 sfc_log_init(sa, "rxq_count=%u", sa->rxq_count);
733 sw_index = sa->rxq_count;
734 while (sw_index-- > 0) {
735 if (sa->rxq_info[sw_index].rxq != NULL)
736 sfc_rx_qstop(sa, sw_index);
739 efx_rx_fini(sa->nic);
743 sfc_rx_qinit_info(struct sfc_adapter *sa, unsigned int sw_index)
745 struct sfc_rxq_info *rxq_info = &sa->rxq_info[sw_index];
746 unsigned int max_entries;
748 max_entries = EFX_RXQ_MAXNDESCS;
749 SFC_ASSERT(rte_is_power_of_2(max_entries));
751 rxq_info->max_entries = max_entries;
757 sfc_rx_check_mode(struct sfc_adapter *sa, struct rte_eth_rxmode *rxmode)
761 switch (rxmode->mq_mode) {
763 /* No special checks are required */
766 sfc_err(sa, "Rx multi-queue mode %u not supported",
771 if (rxmode->header_split) {
772 sfc_err(sa, "Header split on Rx not supported");
776 if (rxmode->hw_vlan_filter) {
777 sfc_err(sa, "HW VLAN filtering not supported");
781 if (rxmode->hw_vlan_strip) {
782 sfc_err(sa, "HW VLAN stripping not supported");
786 if (rxmode->hw_vlan_extend) {
788 "Q-in-Q HW VLAN stripping not supported");
792 if (!rxmode->hw_strip_crc) {
794 "FCS stripping control not supported - always stripped");
795 rxmode->hw_strip_crc = 1;
798 if (rxmode->enable_scatter) {
799 sfc_err(sa, "Scatter on Rx not supported");
803 if (rxmode->enable_lro) {
804 sfc_err(sa, "LRO not supported");
812 * Initialize Rx subsystem.
814 * Called at device configuration stage when number of receive queues is
815 * specified together with other device level receive configuration.
817 * It should be used to allocate NUMA-unaware resources.
820 sfc_rx_init(struct sfc_adapter *sa)
822 struct rte_eth_conf *dev_conf = &sa->eth_dev->data->dev_conf;
823 unsigned int sw_index;
826 rc = sfc_rx_check_mode(sa, &dev_conf->rxmode);
828 goto fail_check_mode;
830 sa->rxq_count = sa->eth_dev->data->nb_rx_queues;
833 sa->rxq_info = rte_calloc_socket("sfc-rxqs", sa->rxq_count,
834 sizeof(struct sfc_rxq_info), 0,
836 if (sa->rxq_info == NULL)
837 goto fail_rxqs_alloc;
839 for (sw_index = 0; sw_index < sa->rxq_count; ++sw_index) {
840 rc = sfc_rx_qinit_info(sa, sw_index);
842 goto fail_rx_qinit_info;
848 rte_free(sa->rxq_info);
854 sfc_log_init(sa, "failed %d", rc);
859 * Shutdown Rx subsystem.
861 * Called at device close stage, for example, before device
862 * reconfiguration or shutdown.
865 sfc_rx_fini(struct sfc_adapter *sa)
867 unsigned int sw_index;
869 sw_index = sa->rxq_count;
870 while (sw_index-- > 0) {
871 if (sa->rxq_info[sw_index].rxq != NULL)
872 sfc_rx_qfini(sa, sw_index);
875 rte_free(sa->rxq_info);