1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2016-2018 Microsoft Corporation
3 * Copyright(c) 2013-2016 Brocade Communications Systems, Inc.
15 #include <rte_ethdev.h>
16 #include <rte_memcpy.h>
17 #include <rte_string_fns.h>
18 #include <rte_memzone.h>
19 #include <rte_malloc.h>
20 #include <rte_atomic.h>
21 #include <rte_bitmap.h>
22 #include <rte_branch_prediction.h>
23 #include <rte_ether.h>
24 #include <rte_common.h>
25 #include <rte_errno.h>
26 #include <rte_memory.h>
30 #include <rte_bus_vmbus.h>
31 #include <rte_spinlock.h>
39 #define HN_NVS_SEND_MSG_SIZE \
40 (sizeof(struct vmbus_chanpkt_hdr) + sizeof(struct hn_nvs_rndis))
42 #define HN_TXD_CACHE_SIZE 32 /* per cpu tx_descriptor pool cache */
43 #define HN_RXQ_EVENT_DEFAULT 2048
52 #define HN_RXINFO_VLAN 0x0001
53 #define HN_RXINFO_CSUM 0x0002
54 #define HN_RXINFO_HASHINF 0x0004
55 #define HN_RXINFO_HASHVAL 0x0008
56 #define HN_RXINFO_ALL \
62 #define HN_NDIS_VLAN_INFO_INVALID 0xffffffff
63 #define HN_NDIS_RXCSUM_INFO_INVALID 0
64 #define HN_NDIS_HASH_INFO_INVALID 0
67 * Per-transmit book keeping.
68 * A slot in transmit ring (chim_index) is reserved for each transmit.
70 * There are two types of transmit:
71 * - buffered transmit where chimney buffer is used and RNDIS header
72 * is in the buffer. mbuf == NULL for this case.
74 * - direct transmit where RNDIS header is in the in rndis_pkt
75 * mbuf is freed after transmit.
77 * Descriptors come from per-port pool which is used
78 * to limit number of outstanding requests per device.
89 struct rndis_packet_msg *rndis_pkt;
92 #define HN_RNDIS_PKT_LEN \
93 (sizeof(struct rndis_packet_msg) + \
94 RNDIS_PKTINFO_SIZE(NDIS_HASH_VALUE_SIZE) + \
95 RNDIS_PKTINFO_SIZE(NDIS_VLAN_INFO_SIZE) + \
96 RNDIS_PKTINFO_SIZE(NDIS_LSO2_INFO_SIZE) + \
97 RNDIS_PKTINFO_SIZE(NDIS_TXCSUM_INFO_SIZE))
99 #define HN_RNDIS_PKT_ALIGNED RTE_ALIGN(HN_RNDIS_PKT_LEN, RTE_CACHE_LINE_SIZE)
101 /* Minimum space required for a packet */
102 #define HN_PKTSIZE_MIN(align) \
103 RTE_ALIGN(RTE_ETHER_MIN_LEN + HN_RNDIS_PKT_LEN, align)
105 #define DEFAULT_TX_FREE_THRESH 32
108 hn_update_packet_stats(struct hn_stats *stats, const struct rte_mbuf *m)
110 uint32_t s = m->pkt_len;
111 const struct rte_ether_addr *ea;
114 stats->size_bins[1]++;
115 } else if (s > 64 && s < 1024) {
118 /* count zeros, and offset into correct bin */
119 bin = (sizeof(s) * 8) - __builtin_clz(s) - 5;
120 stats->size_bins[bin]++;
123 stats->size_bins[0]++;
125 stats->size_bins[6]++;
127 stats->size_bins[7]++;
130 ea = rte_pktmbuf_mtod(m, const struct rte_ether_addr *);
131 if (rte_is_multicast_ether_addr(ea)) {
132 if (rte_is_broadcast_ether_addr(ea))
139 static inline unsigned int hn_rndis_pktlen(const struct rndis_packet_msg *pkt)
141 return pkt->pktinfooffset + pkt->pktinfolen;
144 static inline uint32_t
145 hn_rndis_pktmsg_offset(uint32_t ofs)
147 return ofs - offsetof(struct rndis_packet_msg, dataoffset);
150 static void hn_txd_init(struct rte_mempool *mp __rte_unused,
151 void *opaque, void *obj, unsigned int idx)
153 struct hn_tx_queue *txq = opaque;
154 struct hn_txdesc *txd = obj;
156 memset(txd, 0, sizeof(*txd));
158 txd->queue_id = txq->queue_id;
159 txd->chim_index = NVS_CHIM_IDX_INVALID;
160 txd->rndis_pkt = (struct rndis_packet_msg *)((char *)txq->tx_rndis
161 + idx * HN_RNDIS_PKT_ALIGNED);
165 hn_chim_init(struct rte_eth_dev *dev)
167 struct hn_data *hv = dev->data->dev_private;
168 uint32_t i, chim_bmp_size;
170 rte_spinlock_init(&hv->chim_lock);
171 chim_bmp_size = rte_bitmap_get_memory_footprint(hv->chim_cnt);
172 hv->chim_bmem = rte_zmalloc("hn_chim_bitmap", chim_bmp_size,
173 RTE_CACHE_LINE_SIZE);
174 if (hv->chim_bmem == NULL) {
175 PMD_INIT_LOG(ERR, "failed to allocate bitmap size %u",
180 hv->chim_bmap = rte_bitmap_init(hv->chim_cnt,
181 hv->chim_bmem, chim_bmp_size);
182 if (hv->chim_bmap == NULL) {
183 PMD_INIT_LOG(ERR, "failed to init chim bitmap");
187 for (i = 0; i < hv->chim_cnt; i++)
188 rte_bitmap_set(hv->chim_bmap, i);
194 hn_chim_uninit(struct rte_eth_dev *dev)
196 struct hn_data *hv = dev->data->dev_private;
198 rte_bitmap_free(hv->chim_bmap);
199 rte_free(hv->chim_bmem);
200 hv->chim_bmem = NULL;
203 static uint32_t hn_chim_alloc(struct hn_data *hv)
205 uint32_t index = NVS_CHIM_IDX_INVALID;
208 rte_spinlock_lock(&hv->chim_lock);
209 if (rte_bitmap_scan(hv->chim_bmap, &index, &slab)) {
210 index += rte_bsf64(slab);
211 rte_bitmap_clear(hv->chim_bmap, index);
213 rte_spinlock_unlock(&hv->chim_lock);
218 static void hn_chim_free(struct hn_data *hv, uint32_t chim_idx)
220 if (chim_idx >= hv->chim_cnt) {
221 PMD_DRV_LOG(ERR, "Invalid chimney index %u", chim_idx);
223 rte_spinlock_lock(&hv->chim_lock);
224 rte_bitmap_set(hv->chim_bmap, chim_idx);
225 rte_spinlock_unlock(&hv->chim_lock);
229 static void hn_reset_txagg(struct hn_tx_queue *txq)
231 txq->agg_szleft = txq->agg_szmax;
232 txq->agg_pktleft = txq->agg_pktmax;
234 txq->agg_prevpkt = NULL;
238 hn_dev_tx_queue_setup(struct rte_eth_dev *dev,
239 uint16_t queue_idx, uint16_t nb_desc,
240 unsigned int socket_id,
241 const struct rte_eth_txconf *tx_conf)
244 struct hn_data *hv = dev->data->dev_private;
245 struct hn_tx_queue *txq;
246 char name[RTE_MEMPOOL_NAMESIZE];
247 uint32_t tx_free_thresh;
250 PMD_INIT_FUNC_TRACE();
252 tx_free_thresh = tx_conf->tx_free_thresh;
253 if (tx_free_thresh == 0)
254 tx_free_thresh = RTE_MIN(nb_desc / 4,
255 DEFAULT_TX_FREE_THRESH);
257 if (tx_free_thresh + 3 >= nb_desc) {
259 "tx_free_thresh must be less than the number of TX entries minus 3(%u)."
260 " (tx_free_thresh=%u port=%u queue=%u)\n",
262 tx_free_thresh, dev->data->port_id, queue_idx);
266 txq = rte_zmalloc_socket("HN_TXQ", sizeof(*txq), RTE_CACHE_LINE_SIZE,
272 txq->chan = hv->channels[queue_idx];
273 txq->port_id = dev->data->port_id;
274 txq->queue_id = queue_idx;
275 txq->free_thresh = tx_free_thresh;
277 snprintf(name, sizeof(name),
278 "hn_txd_%u_%u", dev->data->port_id, queue_idx);
280 PMD_INIT_LOG(DEBUG, "TX descriptor pool %s n=%u size=%zu",
281 name, nb_desc, sizeof(struct hn_txdesc));
283 txq->tx_rndis_mz = rte_memzone_reserve_aligned(name,
284 nb_desc * HN_RNDIS_PKT_ALIGNED, rte_socket_id(),
285 RTE_MEMZONE_IOVA_CONTIG, HN_RNDIS_PKT_ALIGNED);
286 if (!txq->tx_rndis_mz) {
290 txq->tx_rndis = txq->tx_rndis_mz->addr;
291 txq->tx_rndis_iova = txq->tx_rndis_mz->iova;
293 txq->txdesc_pool = rte_mempool_create(name, nb_desc,
294 sizeof(struct hn_txdesc),
297 dev->device->numa_node, 0);
298 if (txq->txdesc_pool == NULL) {
300 "mempool %s create failed: %d", name, rte_errno);
304 txq->agg_szmax = RTE_MIN(hv->chim_szmax, hv->rndis_agg_size);
305 txq->agg_pktmax = hv->rndis_agg_pkts;
306 txq->agg_align = hv->rndis_agg_align;
310 err = hn_vf_tx_queue_setup(dev, queue_idx, nb_desc,
313 dev->data->tx_queues[queue_idx] = txq;
318 rte_mempool_free(txq->txdesc_pool);
319 rte_memzone_free(txq->tx_rndis_mz);
325 hn_dev_tx_queue_info(struct rte_eth_dev *dev, uint16_t queue_id,
326 struct rte_eth_txq_info *qinfo)
328 struct hn_tx_queue *txq = dev->data->tx_queues[queue_id];
330 qinfo->nb_desc = txq->txdesc_pool->size;
331 qinfo->conf.offloads = dev->data->dev_conf.txmode.offloads;
334 static struct hn_txdesc *hn_txd_get(struct hn_tx_queue *txq)
336 struct hn_txdesc *txd;
338 if (rte_mempool_get(txq->txdesc_pool, (void **)&txd)) {
339 ++txq->stats.ring_full;
340 PMD_TX_LOG(DEBUG, "tx pool exhausted!");
352 static void hn_txd_put(struct hn_tx_queue *txq, struct hn_txdesc *txd)
354 rte_mempool_put(txq->txdesc_pool, txd);
358 hn_dev_tx_queue_release(struct rte_eth_dev *dev, uint16_t qid)
360 struct hn_tx_queue *txq = dev->data->tx_queues[qid];
362 PMD_INIT_FUNC_TRACE();
367 rte_mempool_free(txq->txdesc_pool);
369 rte_memzone_free(txq->tx_rndis_mz);
374 * Check the status of a Tx descriptor in the queue.
377 * - -EINVAL - offset outside of tx_descriptor pool.
378 * - RTE_ETH_TX_DESC_FULL - descriptor is not acknowledged by host.
379 * - RTE_ETH_TX_DESC_DONE - descriptor is available.
381 int hn_dev_tx_descriptor_status(void *arg, uint16_t offset)
383 const struct hn_tx_queue *txq = arg;
385 hn_process_events(txq->hv, txq->queue_id, 0);
387 if (offset >= rte_mempool_avail_count(txq->txdesc_pool))
390 if (offset < rte_mempool_in_use_count(txq->txdesc_pool))
391 return RTE_ETH_TX_DESC_FULL;
393 return RTE_ETH_TX_DESC_DONE;
397 hn_nvs_send_completed(struct rte_eth_dev *dev, uint16_t queue_id,
398 unsigned long xactid, const struct hn_nvs_rndis_ack *ack)
400 struct hn_data *hv = dev->data->dev_private;
401 struct hn_txdesc *txd = (struct hn_txdesc *)xactid;
402 struct hn_tx_queue *txq;
404 /* Control packets are sent with xacid == 0 */
408 txq = dev->data->tx_queues[queue_id];
409 if (likely(ack->status == NVS_STATUS_OK)) {
410 PMD_TX_LOG(DEBUG, "port %u:%u complete tx %u packets %u bytes %u",
411 txq->port_id, txq->queue_id, txd->chim_index,
412 txd->packets, txd->data_size);
413 txq->stats.bytes += txd->data_size;
414 txq->stats.packets += txd->packets;
416 PMD_DRV_LOG(NOTICE, "port %u:%u complete tx %u failed status %u",
417 txq->port_id, txq->queue_id, txd->chim_index, ack->status);
421 if (txd->chim_index != NVS_CHIM_IDX_INVALID) {
422 hn_chim_free(hv, txd->chim_index);
423 txd->chim_index = NVS_CHIM_IDX_INVALID;
426 rte_pktmbuf_free(txd->m);
427 hn_txd_put(txq, txd);
430 /* Handle transmit completion events */
432 hn_nvs_handle_comp(struct rte_eth_dev *dev, uint16_t queue_id,
433 const struct vmbus_chanpkt_hdr *pkt,
436 const struct hn_nvs_hdr *hdr = data;
439 case NVS_TYPE_RNDIS_ACK:
440 hn_nvs_send_completed(dev, queue_id, pkt->xactid, data);
444 PMD_DRV_LOG(NOTICE, "unexpected send completion type %u",
449 /* Parse per-packet info (meta data) */
451 hn_rndis_rxinfo(const void *info_data, unsigned int info_dlen,
452 struct hn_rxinfo *info)
454 const struct rndis_pktinfo *pi = info_data;
457 while (info_dlen != 0) {
461 if (unlikely(info_dlen < sizeof(*pi)))
464 if (unlikely(info_dlen < pi->size))
466 info_dlen -= pi->size;
468 if (unlikely(pi->size & RNDIS_PKTINFO_SIZE_ALIGNMASK))
470 if (unlikely(pi->size < pi->offset))
473 dlen = pi->size - pi->offset;
477 case NDIS_PKTINFO_TYPE_VLAN:
478 if (unlikely(dlen < NDIS_VLAN_INFO_SIZE))
480 info->vlan_info = *((const uint32_t *)data);
481 mask |= HN_RXINFO_VLAN;
484 case NDIS_PKTINFO_TYPE_CSUM:
485 if (unlikely(dlen < NDIS_RXCSUM_INFO_SIZE))
487 info->csum_info = *((const uint32_t *)data);
488 mask |= HN_RXINFO_CSUM;
491 case NDIS_PKTINFO_TYPE_HASHVAL:
492 if (unlikely(dlen < NDIS_HASH_VALUE_SIZE))
494 info->hash_value = *((const uint32_t *)data);
495 mask |= HN_RXINFO_HASHVAL;
498 case NDIS_PKTINFO_TYPE_HASHINF:
499 if (unlikely(dlen < NDIS_HASH_INFO_SIZE))
501 info->hash_info = *((const uint32_t *)data);
502 mask |= HN_RXINFO_HASHINF;
509 if (mask == HN_RXINFO_ALL)
510 break; /* All found; done */
512 pi = (const struct rndis_pktinfo *)
513 ((const uint8_t *)pi + pi->size);
518 * - If there is no hash value, invalidate the hash info.
520 if (!(mask & HN_RXINFO_HASHVAL))
521 info->hash_info = HN_NDIS_HASH_INFO_INVALID;
525 static void hn_rx_buf_free_cb(void *buf __rte_unused, void *opaque)
527 struct hn_rx_bufinfo *rxb = opaque;
528 struct hn_rx_queue *rxq = rxb->rxq;
530 rte_atomic32_dec(&rxq->rxbuf_outstanding);
531 hn_nvs_ack_rxbuf(rxb->chan, rxb->xactid);
534 static struct hn_rx_bufinfo *hn_rx_buf_init(struct hn_rx_queue *rxq,
535 const struct vmbus_chanpkt_rxbuf *pkt)
537 struct hn_rx_bufinfo *rxb;
539 rxb = rxq->rxbuf_info + pkt->hdr.xactid;
540 rxb->chan = rxq->chan;
541 rxb->xactid = pkt->hdr.xactid;
544 rxb->shinfo.free_cb = hn_rx_buf_free_cb;
545 rxb->shinfo.fcb_opaque = rxb;
546 rte_mbuf_ext_refcnt_set(&rxb->shinfo, 1);
550 static void hn_rxpkt(struct hn_rx_queue *rxq, struct hn_rx_bufinfo *rxb,
551 uint8_t *data, unsigned int headroom, unsigned int dlen,
552 const struct hn_rxinfo *info)
554 struct hn_data *hv = rxq->hv;
556 bool use_extbuf = false;
558 m = rte_pktmbuf_alloc(rxq->mb_pool);
560 struct rte_eth_dev *dev =
561 &rte_eth_devices[rxq->port_id];
563 dev->data->rx_mbuf_alloc_failed++;
568 * For large packets, avoid copy if possible but need to keep
569 * some space available in receive area for later packets.
571 if (hv->rx_extmbuf_enable && dlen > hv->rx_copybreak &&
572 (uint32_t)rte_atomic32_read(&rxq->rxbuf_outstanding) <
573 hv->rxbuf_section_cnt / 2) {
574 struct rte_mbuf_ext_shared_info *shinfo;
579 * Build an external mbuf that points to receive area.
580 * Use refcount to handle multiple packets in same
581 * receive buffer section.
583 rxbuf = hv->rxbuf_res->addr;
584 iova = rte_mem_virt2iova(rxbuf) + RTE_PTR_DIFF(data, rxbuf);
585 shinfo = &rxb->shinfo;
587 /* shinfo is already set to 1 by the caller */
588 if (rte_mbuf_ext_refcnt_update(shinfo, 1) == 2)
589 rte_atomic32_inc(&rxq->rxbuf_outstanding);
591 rte_pktmbuf_attach_extbuf(m, data, iova,
592 dlen + headroom, shinfo);
593 m->data_off = headroom;
596 /* Mbuf's in pool must be large enough to hold small packets */
597 if (unlikely(rte_pktmbuf_tailroom(m) < dlen)) {
598 rte_pktmbuf_free_seg(m);
602 rte_memcpy(rte_pktmbuf_mtod(m, void *),
603 data + headroom, dlen);
606 m->port = rxq->port_id;
609 m->packet_type = rte_net_get_ptype(m, NULL,
614 if (info->vlan_info != HN_NDIS_VLAN_INFO_INVALID) {
615 m->vlan_tci = info->vlan_info;
616 m->ol_flags |= RTE_MBUF_F_RX_VLAN_STRIPPED | RTE_MBUF_F_RX_VLAN;
618 /* NDIS always strips tag, put it back if necessary */
619 if (!hv->vlan_strip && rte_vlan_insert(&m)) {
620 PMD_DRV_LOG(DEBUG, "vlan insert failed");
623 rte_pktmbuf_detach_extbuf(m);
629 if (info->csum_info != HN_NDIS_RXCSUM_INFO_INVALID) {
630 if (info->csum_info & NDIS_RXCSUM_INFO_IPCS_OK)
631 m->ol_flags |= RTE_MBUF_F_RX_IP_CKSUM_GOOD;
633 if (info->csum_info & (NDIS_RXCSUM_INFO_UDPCS_OK
634 | NDIS_RXCSUM_INFO_TCPCS_OK))
635 m->ol_flags |= RTE_MBUF_F_RX_L4_CKSUM_GOOD;
636 else if (info->csum_info & (NDIS_RXCSUM_INFO_TCPCS_FAILED
637 | NDIS_RXCSUM_INFO_UDPCS_FAILED))
638 m->ol_flags |= RTE_MBUF_F_RX_L4_CKSUM_BAD;
641 if (info->hash_info != HN_NDIS_HASH_INFO_INVALID) {
642 m->ol_flags |= RTE_MBUF_F_RX_RSS_HASH;
643 m->hash.rss = info->hash_value;
647 "port %u:%u RX id %"PRIu64" size %u type %#x ol_flags %#"PRIx64,
648 rxq->port_id, rxq->queue_id, rxb->xactid,
649 m->pkt_len, m->packet_type, m->ol_flags);
651 ++rxq->stats.packets;
652 rxq->stats.bytes += m->pkt_len;
653 hn_update_packet_stats(&rxq->stats, m);
655 if (unlikely(rte_ring_sp_enqueue(rxq->rx_ring, m) != 0)) {
656 ++rxq->stats.ring_full;
657 PMD_RX_LOG(DEBUG, "rx ring full");
659 rte_pktmbuf_detach_extbuf(m);
664 static void hn_rndis_rx_data(struct hn_rx_queue *rxq,
665 struct hn_rx_bufinfo *rxb,
666 void *data, uint32_t dlen)
668 unsigned int data_off, data_len;
669 unsigned int pktinfo_off, pktinfo_len;
670 const struct rndis_packet_msg *pkt = data;
671 struct hn_rxinfo info = {
672 .vlan_info = HN_NDIS_VLAN_INFO_INVALID,
673 .csum_info = HN_NDIS_RXCSUM_INFO_INVALID,
674 .hash_info = HN_NDIS_HASH_INFO_INVALID,
680 if (unlikely(dlen < sizeof(*pkt)))
683 if (unlikely(dlen < pkt->len))
684 goto error; /* truncated RNDIS from host */
686 if (unlikely(pkt->len < pkt->datalen
687 + pkt->oobdatalen + pkt->pktinfolen))
690 if (unlikely(pkt->datalen == 0))
694 if (unlikely(pkt->dataoffset < RNDIS_PACKET_MSG_OFFSET_MIN))
697 if (likely(pkt->pktinfooffset > 0) &&
698 unlikely(pkt->pktinfooffset < RNDIS_PACKET_MSG_OFFSET_MIN ||
699 (pkt->pktinfooffset & RNDIS_PACKET_MSG_OFFSET_ALIGNMASK)))
702 data_off = RNDIS_PACKET_MSG_OFFSET_ABS(pkt->dataoffset);
703 data_len = pkt->datalen;
704 pktinfo_off = RNDIS_PACKET_MSG_OFFSET_ABS(pkt->pktinfooffset);
705 pktinfo_len = pkt->pktinfolen;
707 if (likely(pktinfo_len > 0)) {
708 err = hn_rndis_rxinfo((const uint8_t *)pkt + pktinfo_off,
715 if (data_len > data_len + data_off || data_len + data_off > pkt->len)
718 if (unlikely(data_len < RTE_ETHER_HDR_LEN))
721 hn_rxpkt(rxq, rxb, data, data_off, data_len, &info);
728 hn_rndis_receive(struct rte_eth_dev *dev, struct hn_rx_queue *rxq,
729 struct hn_rx_bufinfo *rxb, void *buf, uint32_t len)
731 const struct rndis_msghdr *hdr = buf;
734 case RNDIS_PACKET_MSG:
735 if (dev->data->dev_started)
736 hn_rndis_rx_data(rxq, rxb, buf, len);
739 case RNDIS_INDICATE_STATUS_MSG:
740 hn_rndis_link_status(dev, buf);
743 case RNDIS_INITIALIZE_CMPLT:
744 case RNDIS_QUERY_CMPLT:
745 case RNDIS_SET_CMPLT:
746 hn_rndis_receive_response(rxq->hv, buf, len);
751 "unexpected RNDIS message (type %#x len %u)",
758 hn_nvs_handle_rxbuf(struct rte_eth_dev *dev,
760 struct hn_rx_queue *rxq,
761 const struct vmbus_chanpkt_hdr *hdr,
764 const struct vmbus_chanpkt_rxbuf *pkt;
765 const struct hn_nvs_hdr *nvs_hdr = buf;
766 uint32_t rxbuf_sz = hv->rxbuf_res->len;
767 char *rxbuf = hv->rxbuf_res->addr;
768 unsigned int i, hlen, count;
769 struct hn_rx_bufinfo *rxb;
771 /* At minimum we need type header */
772 if (unlikely(vmbus_chanpkt_datalen(hdr) < sizeof(*nvs_hdr))) {
773 PMD_RX_LOG(ERR, "invalid receive nvs RNDIS");
777 /* Make sure that this is a RNDIS message. */
778 if (unlikely(nvs_hdr->type != NVS_TYPE_RNDIS)) {
779 PMD_RX_LOG(ERR, "nvs type %u, not RNDIS",
784 hlen = vmbus_chanpkt_getlen(hdr->hlen);
785 if (unlikely(hlen < sizeof(*pkt))) {
786 PMD_RX_LOG(ERR, "invalid rxbuf chanpkt");
790 pkt = container_of(hdr, const struct vmbus_chanpkt_rxbuf, hdr);
791 if (unlikely(pkt->rxbuf_id != NVS_RXBUF_SIG)) {
792 PMD_RX_LOG(ERR, "invalid rxbuf_id 0x%08x",
797 count = pkt->rxbuf_cnt;
798 if (unlikely(hlen < offsetof(struct vmbus_chanpkt_rxbuf,
800 PMD_RX_LOG(ERR, "invalid rxbuf_cnt %u", count);
804 if (pkt->hdr.xactid > hv->rxbuf_section_cnt) {
805 PMD_RX_LOG(ERR, "invalid rxbuf section id %" PRIx64,
810 /* Setup receive buffer info to allow for callback */
811 rxb = hn_rx_buf_init(rxq, pkt);
813 /* Each range represents 1 RNDIS pkt that contains 1 Ethernet frame */
814 for (i = 0; i < count; ++i) {
815 unsigned int ofs, len;
817 ofs = pkt->rxbuf[i].ofs;
818 len = pkt->rxbuf[i].len;
820 if (unlikely(ofs + len > rxbuf_sz)) {
822 "%uth RNDIS msg overflow ofs %u, len %u",
827 if (unlikely(len == 0)) {
828 PMD_RX_LOG(ERR, "%uth RNDIS msg len %u", i, len);
832 hn_rndis_receive(dev, rxq, rxb,
836 /* Send ACK now if external mbuf not used */
837 if (rte_mbuf_ext_refcnt_update(&rxb->shinfo, -1) == 0)
838 hn_nvs_ack_rxbuf(rxb->chan, rxb->xactid);
842 * Called when NVS inband events are received.
843 * Send up a two part message with port_id and the NVS message
844 * to the pipe to the netvsc-vf-event control thread.
846 static void hn_nvs_handle_notify(struct rte_eth_dev *dev,
847 const struct vmbus_chanpkt_hdr *pkt,
850 const struct hn_nvs_hdr *hdr = data;
853 case NVS_TYPE_TXTBL_NOTE:
854 /* Transmit indirection table has locking problems
855 * in DPDK and therefore not implemented
857 PMD_DRV_LOG(DEBUG, "host notify of transmit indirection table");
860 case NVS_TYPE_VFASSOC_NOTE:
861 hn_nvs_handle_vfassoc(dev, pkt, data);
866 "got notify, nvs type %u", hdr->type);
870 struct hn_rx_queue *hn_rx_queue_alloc(struct hn_data *hv,
872 unsigned int socket_id)
874 struct hn_rx_queue *rxq;
876 rxq = rte_zmalloc_socket("HN_RXQ", sizeof(*rxq),
877 RTE_CACHE_LINE_SIZE, socket_id);
882 rxq->chan = hv->channels[queue_id];
883 rte_spinlock_init(&rxq->ring_lock);
884 rxq->port_id = hv->port_id;
885 rxq->queue_id = queue_id;
886 rxq->event_sz = HN_RXQ_EVENT_DEFAULT;
887 rxq->event_buf = rte_malloc_socket("HN_EVENTS", HN_RXQ_EVENT_DEFAULT,
888 RTE_CACHE_LINE_SIZE, socket_id);
889 if (!rxq->event_buf) {
894 /* setup rxbuf_info for non-primary queue */
896 rxq->rxbuf_info = rte_calloc("HN_RXBUF_INFO",
897 hv->rxbuf_section_cnt,
898 sizeof(*rxq->rxbuf_info),
899 RTE_CACHE_LINE_SIZE);
901 if (!rxq->rxbuf_info) {
903 "Could not allocate rxbuf info for queue %d\n",
905 rte_free(rxq->event_buf);
915 hn_dev_rx_queue_info(struct rte_eth_dev *dev, uint16_t queue_id,
916 struct rte_eth_rxq_info *qinfo)
918 struct hn_rx_queue *rxq = dev->data->rx_queues[queue_id];
920 qinfo->mp = rxq->mb_pool;
921 qinfo->nb_desc = rxq->rx_ring->size;
922 qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
926 hn_dev_rx_queue_setup(struct rte_eth_dev *dev,
927 uint16_t queue_idx, uint16_t nb_desc,
928 unsigned int socket_id,
929 const struct rte_eth_rxconf *rx_conf,
930 struct rte_mempool *mp)
932 struct hn_data *hv = dev->data->dev_private;
933 char ring_name[RTE_RING_NAMESIZE];
934 struct hn_rx_queue *rxq;
938 PMD_INIT_FUNC_TRACE();
940 if (queue_idx == 0) {
943 rxq = hn_rx_queue_alloc(hv, queue_idx, socket_id);
949 count = rte_mempool_avail_count(mp) / dev->data->nb_rx_queues;
950 if (nb_desc == 0 || nb_desc > count)
954 * Staging ring from receive event logic to rx_pkts.
955 * rx_pkts assumes caller is handling multi-thread issue.
956 * event logic has locking.
958 snprintf(ring_name, sizeof(ring_name),
959 "hn_rx_%u_%u", dev->data->port_id, queue_idx);
960 rxq->rx_ring = rte_ring_create(ring_name,
961 rte_align32pow2(nb_desc),
966 error = hn_vf_rx_queue_setup(dev, queue_idx, nb_desc,
967 socket_id, rx_conf, mp);
971 dev->data->rx_queues[queue_idx] = rxq;
975 rte_ring_free(rxq->rx_ring);
976 rte_free(rxq->rxbuf_info);
977 rte_free(rxq->event_buf);
983 hn_rx_queue_free(struct hn_rx_queue *rxq, bool keep_primary)
989 rte_ring_free(rxq->rx_ring);
993 hn_vf_rx_queue_release(rxq->hv, rxq->queue_id);
995 /* Keep primary queue to allow for control operations */
996 if (keep_primary && rxq == rxq->hv->primary)
999 rte_free(rxq->rxbuf_info);
1000 rte_free(rxq->event_buf);
1005 hn_dev_rx_queue_release(struct rte_eth_dev *dev, uint16_t qid)
1007 struct hn_rx_queue *rxq = dev->data->rx_queues[qid];
1009 PMD_INIT_FUNC_TRACE();
1011 hn_rx_queue_free(rxq, true);
1015 * Get the number of used descriptor in a rx queue
1016 * For this device that means how many packets are pending in the ring.
1019 hn_dev_rx_queue_count(void *rx_queue)
1021 struct hn_rx_queue *rxq = rx_queue;
1023 return rte_ring_count(rxq->rx_ring);
1027 * Check the status of a Rx descriptor in the queue
1030 * - -EINVAL - offset outside of ring
1031 * - RTE_ETH_RX_DESC_AVAIL - no data available yet
1032 * - RTE_ETH_RX_DESC_DONE - data is waiting in staging ring
1034 int hn_dev_rx_queue_status(void *arg, uint16_t offset)
1036 const struct hn_rx_queue *rxq = arg;
1038 hn_process_events(rxq->hv, rxq->queue_id, 0);
1039 if (offset >= rxq->rx_ring->capacity)
1042 if (offset < rte_ring_count(rxq->rx_ring))
1043 return RTE_ETH_RX_DESC_DONE;
1045 return RTE_ETH_RX_DESC_AVAIL;
1049 hn_dev_tx_done_cleanup(void *arg, uint32_t free_cnt)
1051 struct hn_tx_queue *txq = arg;
1053 return hn_process_events(txq->hv, txq->queue_id, free_cnt);
1057 * Process pending events on the channel.
1058 * Called from both Rx queue poll and Tx cleanup
1060 uint32_t hn_process_events(struct hn_data *hv, uint16_t queue_id,
1063 struct rte_eth_dev *dev = &rte_eth_devices[hv->port_id];
1064 struct hn_rx_queue *rxq;
1065 uint32_t bytes_read = 0;
1066 uint32_t tx_done = 0;
1069 rxq = queue_id == 0 ? hv->primary : dev->data->rx_queues[queue_id];
1072 * Since channel is shared between Rx and TX queue need to have a lock
1073 * since DPDK does not force same CPU to be used for Rx/Tx.
1075 if (unlikely(!rte_spinlock_trylock(&rxq->ring_lock)))
1079 const struct vmbus_chanpkt_hdr *pkt;
1080 uint32_t len = rxq->event_sz;
1084 ret = rte_vmbus_chan_recv_raw(rxq->chan, rxq->event_buf, &len);
1086 break; /* ring is empty */
1088 if (unlikely(ret == -ENOBUFS)) {
1089 /* event buffer not large enough to read ring */
1092 "event buffer expansion (need %u)", len);
1093 rxq->event_sz = len + len / 4;
1094 rxq->event_buf = rte_realloc(rxq->event_buf, rxq->event_sz,
1095 RTE_CACHE_LINE_SIZE);
1098 /* out of memory, no more events now */
1103 if (unlikely(ret <= 0)) {
1104 /* This indicates a failure to communicate (or worse) */
1105 rte_exit(EXIT_FAILURE,
1106 "vmbus ring buffer error: %d", ret);
1110 pkt = (const struct vmbus_chanpkt_hdr *)rxq->event_buf;
1111 data = (char *)rxq->event_buf + vmbus_chanpkt_getlen(pkt->hlen);
1113 switch (pkt->type) {
1114 case VMBUS_CHANPKT_TYPE_COMP:
1116 hn_nvs_handle_comp(dev, queue_id, pkt, data);
1119 case VMBUS_CHANPKT_TYPE_RXBUF:
1120 hn_nvs_handle_rxbuf(dev, hv, rxq, pkt, data);
1123 case VMBUS_CHANPKT_TYPE_INBAND:
1124 hn_nvs_handle_notify(dev, pkt, data);
1128 PMD_DRV_LOG(ERR, "unknown chan pkt %u", pkt->type);
1132 if (tx_limit && tx_done >= tx_limit)
1137 rte_vmbus_chan_signal_read(rxq->chan, bytes_read);
1139 rte_spinlock_unlock(&rxq->ring_lock);
1144 static void hn_append_to_chim(struct hn_tx_queue *txq,
1145 struct rndis_packet_msg *pkt,
1146 const struct rte_mbuf *m)
1148 struct hn_txdesc *txd = txq->agg_txd;
1149 uint8_t *buf = (uint8_t *)pkt;
1150 unsigned int data_offs;
1154 data_offs = RNDIS_PACKET_MSG_OFFSET_ABS(pkt->dataoffset);
1155 txd->chim_size += pkt->len;
1156 txd->data_size += m->pkt_len;
1158 hn_update_packet_stats(&txq->stats, m);
1160 for (; m; m = m->next) {
1161 uint16_t len = rte_pktmbuf_data_len(m);
1163 rte_memcpy(buf + data_offs,
1164 rte_pktmbuf_mtod(m, const char *), len);
1170 * Send pending aggregated data in chimney buffer (if any).
1171 * Returns error if send was unsuccessful because channel ring buffer
1174 static int hn_flush_txagg(struct hn_tx_queue *txq, bool *need_sig)
1177 struct hn_txdesc *txd = txq->agg_txd;
1178 struct hn_nvs_rndis rndis;
1184 rndis = (struct hn_nvs_rndis) {
1185 .type = NVS_TYPE_RNDIS,
1186 .rndis_mtype = NVS_RNDIS_MTYPE_DATA,
1187 .chim_idx = txd->chim_index,
1188 .chim_sz = txd->chim_size,
1191 PMD_TX_LOG(DEBUG, "port %u:%u tx %u size %u",
1192 txq->port_id, txq->queue_id, txd->chim_index, txd->chim_size);
1194 ret = hn_nvs_send(txq->chan, VMBUS_CHANPKT_FLAG_RC,
1195 &rndis, sizeof(rndis), (uintptr_t)txd, need_sig);
1197 if (likely(ret == 0))
1198 hn_reset_txagg(txq);
1199 else if (ret == -EAGAIN) {
1200 PMD_TX_LOG(DEBUG, "port %u:%u channel full",
1201 txq->port_id, txq->queue_id);
1202 ++txq->stats.channel_full;
1204 ++txq->stats.errors;
1206 PMD_DRV_LOG(NOTICE, "port %u:%u send failed: %d",
1207 txq->port_id, txq->queue_id, ret);
1213 * Try and find a place in a send chimney buffer to put
1214 * the small packet. If space is available, this routine
1215 * returns a pointer of where to place the data.
1216 * If no space, caller should try direct transmit.
1219 hn_try_txagg(struct hn_data *hv, struct hn_tx_queue *txq,
1220 struct hn_txdesc *txd, uint32_t pktsize)
1222 struct hn_txdesc *agg_txd = txq->agg_txd;
1223 struct rndis_packet_msg *pkt;
1227 unsigned int padding, olen;
1230 * Update the previous RNDIS packet's total length,
1231 * it can be increased due to the mandatory alignment
1232 * padding for this RNDIS packet. And update the
1233 * aggregating txdesc's chimney sending buffer size
1236 * Zero-out the padding, as required by the RNDIS spec.
1238 pkt = txq->agg_prevpkt;
1240 padding = RTE_ALIGN(olen, txq->agg_align) - olen;
1242 agg_txd->chim_size += padding;
1243 pkt->len += padding;
1244 memset((uint8_t *)pkt + olen, 0, padding);
1247 chim = (uint8_t *)pkt + pkt->len;
1248 txq->agg_prevpkt = chim;
1250 txq->agg_szleft -= pktsize;
1251 if (txq->agg_szleft < HN_PKTSIZE_MIN(txq->agg_align)) {
1253 * Probably can't aggregate more packets,
1254 * flush this aggregating txdesc proactively.
1256 txq->agg_pktleft = 0;
1259 hn_txd_put(txq, txd);
1263 txd->chim_index = hn_chim_alloc(hv);
1264 if (txd->chim_index == NVS_CHIM_IDX_INVALID)
1267 chim = (uint8_t *)hv->chim_res->addr
1268 + txd->chim_index * hv->chim_szmax;
1271 txq->agg_pktleft = txq->agg_pktmax - 1;
1272 txq->agg_szleft = txq->agg_szmax - pktsize;
1273 txq->agg_prevpkt = chim;
1278 static inline void *
1279 hn_rndis_pktinfo_append(struct rndis_packet_msg *pkt,
1280 uint32_t pi_dlen, uint32_t pi_type)
1282 const uint32_t pi_size = RNDIS_PKTINFO_SIZE(pi_dlen);
1283 struct rndis_pktinfo *pi;
1286 * Per-packet-info does not move; it only grows.
1289 * pktinfooffset in this phase counts from the beginning
1290 * of rndis_packet_msg.
1292 pi = (struct rndis_pktinfo *)((uint8_t *)pkt + hn_rndis_pktlen(pkt));
1294 pkt->pktinfolen += pi_size;
1298 pi->offset = RNDIS_PKTINFO_OFFSET;
1303 /* Put RNDIS header and packet info on packet */
1304 static void hn_encap(struct rndis_packet_msg *pkt,
1306 const struct rte_mbuf *m)
1308 unsigned int hlen = m->l2_len + m->l3_len;
1312 pkt->type = RNDIS_PACKET_MSG;
1313 pkt->len = m->pkt_len;
1314 pkt->dataoffset = 0;
1315 pkt->datalen = m->pkt_len;
1316 pkt->oobdataoffset = 0;
1317 pkt->oobdatalen = 0;
1318 pkt->oobdataelements = 0;
1319 pkt->pktinfooffset = sizeof(*pkt);
1320 pkt->pktinfolen = 0;
1325 * Set the hash value for this packet, to the queue_id to cause
1326 * TX done event for this packet on the right channel.
1328 pi_data = hn_rndis_pktinfo_append(pkt, NDIS_HASH_VALUE_SIZE,
1329 NDIS_PKTINFO_TYPE_HASHVAL);
1330 *pi_data = queue_id;
1332 if (m->ol_flags & RTE_MBUF_F_TX_VLAN) {
1333 pi_data = hn_rndis_pktinfo_append(pkt, NDIS_VLAN_INFO_SIZE,
1334 NDIS_PKTINFO_TYPE_VLAN);
1335 *pi_data = m->vlan_tci;
1338 if (m->ol_flags & RTE_MBUF_F_TX_TCP_SEG) {
1339 pi_data = hn_rndis_pktinfo_append(pkt, NDIS_LSO2_INFO_SIZE,
1340 NDIS_PKTINFO_TYPE_LSO);
1342 if (m->ol_flags & RTE_MBUF_F_TX_IPV6) {
1343 *pi_data = NDIS_LSO2_INFO_MAKEIPV6(hlen,
1346 *pi_data = NDIS_LSO2_INFO_MAKEIPV4(hlen,
1349 } else if (m->ol_flags &
1350 (RTE_MBUF_F_TX_TCP_CKSUM | RTE_MBUF_F_TX_UDP_CKSUM | RTE_MBUF_F_TX_IP_CKSUM)) {
1351 pi_data = hn_rndis_pktinfo_append(pkt, NDIS_TXCSUM_INFO_SIZE,
1352 NDIS_PKTINFO_TYPE_CSUM);
1355 if (m->ol_flags & RTE_MBUF_F_TX_IPV6)
1356 *pi_data |= NDIS_TXCSUM_INFO_IPV6;
1357 if (m->ol_flags & RTE_MBUF_F_TX_IPV4) {
1358 *pi_data |= NDIS_TXCSUM_INFO_IPV4;
1360 if (m->ol_flags & RTE_MBUF_F_TX_IP_CKSUM)
1361 *pi_data |= NDIS_TXCSUM_INFO_IPCS;
1364 if (m->ol_flags & RTE_MBUF_F_TX_TCP_CKSUM)
1365 *pi_data |= NDIS_TXCSUM_INFO_MKTCPCS(hlen);
1366 else if (m->ol_flags & RTE_MBUF_F_TX_UDP_CKSUM)
1367 *pi_data |= NDIS_TXCSUM_INFO_MKUDPCS(hlen);
1370 pkt_hlen = pkt->pktinfooffset + pkt->pktinfolen;
1371 /* Fixup RNDIS packet message total length */
1372 pkt->len += pkt_hlen;
1374 /* Convert RNDIS packet message offsets */
1375 pkt->dataoffset = hn_rndis_pktmsg_offset(pkt_hlen);
1376 pkt->pktinfooffset = hn_rndis_pktmsg_offset(pkt->pktinfooffset);
1379 /* How many scatter gather list elements ar needed */
1380 static unsigned int hn_get_slots(const struct rte_mbuf *m)
1382 unsigned int slots = 1; /* for RNDIS header */
1385 unsigned int size = rte_pktmbuf_data_len(m);
1386 unsigned int offs = rte_mbuf_data_iova(m) & PAGE_MASK;
1388 slots += (offs + size + rte_mem_page_size() - 1) /
1389 rte_mem_page_size();
1396 /* Build scatter gather list from chained mbuf */
1397 static unsigned int hn_fill_sg(struct vmbus_gpa *sg,
1398 const struct rte_mbuf *m)
1400 unsigned int segs = 0;
1403 rte_iova_t addr = rte_mbuf_data_iova(m);
1404 unsigned int page = addr / rte_mem_page_size();
1405 unsigned int offset = addr & PAGE_MASK;
1406 unsigned int len = rte_pktmbuf_data_len(m);
1409 unsigned int bytes = RTE_MIN(len,
1410 rte_mem_page_size() - offset);
1412 sg[segs].page = page;
1413 sg[segs].ofs = offset;
1414 sg[segs].len = bytes;
1427 /* Transmit directly from mbuf */
1428 static int hn_xmit_sg(struct hn_tx_queue *txq,
1429 const struct hn_txdesc *txd, const struct rte_mbuf *m,
1432 struct vmbus_gpa sg[hn_get_slots(m)];
1433 struct hn_nvs_rndis nvs_rndis = {
1434 .type = NVS_TYPE_RNDIS,
1435 .rndis_mtype = NVS_RNDIS_MTYPE_DATA,
1436 .chim_sz = txd->chim_size,
1441 /* attach aggregation data if present */
1442 if (txd->chim_size > 0)
1443 nvs_rndis.chim_idx = txd->chim_index;
1445 nvs_rndis.chim_idx = NVS_CHIM_IDX_INVALID;
1447 hn_rndis_dump(txd->rndis_pkt);
1449 /* pass IOVA of rndis header in first segment */
1450 addr = txq->tx_rndis_iova +
1451 ((char *)txd->rndis_pkt - (char *)txq->tx_rndis);
1453 sg[0].page = addr / rte_mem_page_size();
1454 sg[0].ofs = addr & PAGE_MASK;
1455 sg[0].len = RNDIS_PACKET_MSG_OFFSET_ABS(hn_rndis_pktlen(txd->rndis_pkt));
1458 hn_update_packet_stats(&txq->stats, m);
1460 segs += hn_fill_sg(sg + 1, m);
1462 PMD_TX_LOG(DEBUG, "port %u:%u tx %u segs %u size %u",
1463 txq->port_id, txq->queue_id, txd->chim_index,
1464 segs, nvs_rndis.chim_sz);
1466 return hn_nvs_send_sglist(txq->chan, sg, segs,
1467 &nvs_rndis, sizeof(nvs_rndis),
1468 (uintptr_t)txd, need_sig);
1472 hn_xmit_pkts(void *ptxq, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
1474 struct hn_tx_queue *txq = ptxq;
1475 uint16_t queue_id = txq->queue_id;
1476 struct hn_data *hv = txq->hv;
1477 struct rte_eth_dev *vf_dev;
1478 bool need_sig = false;
1479 uint16_t nb_tx, tx_thresh;
1482 if (unlikely(hv->closed))
1486 * Always check for events on the primary channel
1487 * because that is where hotplug notifications occur.
1489 tx_thresh = RTE_MAX(txq->free_thresh, nb_pkts);
1490 if (txq->queue_id == 0 ||
1491 rte_mempool_avail_count(txq->txdesc_pool) < tx_thresh)
1492 hn_process_events(hv, txq->queue_id, 0);
1494 /* Transmit over VF if present and up */
1495 if (hv->vf_ctx.vf_vsc_switched) {
1496 rte_rwlock_read_lock(&hv->vf_lock);
1497 vf_dev = hn_get_vf_dev(hv);
1498 if (hv->vf_ctx.vf_vsc_switched && vf_dev &&
1499 vf_dev->data->dev_started) {
1500 void *sub_q = vf_dev->data->tx_queues[queue_id];
1502 nb_tx = (*vf_dev->tx_pkt_burst)
1503 (sub_q, tx_pkts, nb_pkts);
1504 rte_rwlock_read_unlock(&hv->vf_lock);
1507 rte_rwlock_read_unlock(&hv->vf_lock);
1510 for (nb_tx = 0; nb_tx < nb_pkts; nb_tx++) {
1511 struct rte_mbuf *m = tx_pkts[nb_tx];
1512 uint32_t pkt_size = m->pkt_len + HN_RNDIS_PKT_LEN;
1513 struct rndis_packet_msg *pkt;
1514 struct hn_txdesc *txd;
1516 txd = hn_txd_get(txq);
1520 /* For small packets aggregate them in chimney buffer */
1521 if (m->pkt_len <= hv->tx_copybreak &&
1522 pkt_size <= txq->agg_szmax) {
1523 /* If this packet will not fit, then flush */
1524 if (txq->agg_pktleft == 0 ||
1525 RTE_ALIGN(pkt_size, txq->agg_align) > txq->agg_szleft) {
1526 if (hn_flush_txagg(txq, &need_sig))
1531 pkt = hn_try_txagg(hv, txq, txd, pkt_size);
1535 hn_encap(pkt, queue_id, m);
1536 hn_append_to_chim(txq, pkt, m);
1538 rte_pktmbuf_free(m);
1540 /* if buffer is full, flush */
1541 if (txq->agg_pktleft == 0 &&
1542 hn_flush_txagg(txq, &need_sig))
1545 /* Send any outstanding packets in buffer */
1546 if (txq->agg_txd && hn_flush_txagg(txq, &need_sig))
1549 pkt = txd->rndis_pkt;
1551 txd->data_size = m->pkt_len;
1554 hn_encap(pkt, queue_id, m);
1556 ret = hn_xmit_sg(txq, txd, m, &need_sig);
1557 if (unlikely(ret != 0)) {
1558 if (ret == -EAGAIN) {
1559 PMD_TX_LOG(DEBUG, "sg channel full");
1560 ++txq->stats.channel_full;
1562 PMD_DRV_LOG(NOTICE, "sg send failed: %d", ret);
1563 ++txq->stats.errors;
1565 hn_txd_put(txq, txd);
1571 /* If partial buffer left, then try and send it.
1572 * if that fails, then reuse it on next send.
1574 hn_flush_txagg(txq, &need_sig);
1578 rte_vmbus_chan_signal_tx(txq->chan);
1584 hn_recv_vf(uint16_t vf_port, const struct hn_rx_queue *rxq,
1585 struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
1589 if (unlikely(nb_pkts == 0))
1592 n = rte_eth_rx_burst(vf_port, rxq->queue_id, rx_pkts, nb_pkts);
1594 /* relabel the received mbufs */
1595 for (i = 0; i < n; i++)
1596 rx_pkts[i]->port = rxq->port_id;
1602 hn_recv_pkts(void *prxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
1604 struct hn_rx_queue *rxq = prxq;
1605 struct hn_data *hv = rxq->hv;
1606 struct rte_eth_dev *vf_dev;
1609 if (unlikely(hv->closed))
1612 /* Check for new completions (and hotplug) */
1613 if (likely(rte_ring_count(rxq->rx_ring) < nb_pkts))
1614 hn_process_events(hv, rxq->queue_id, 0);
1616 /* Always check the vmbus path for multicast and new flows */
1617 nb_rcv = rte_ring_sc_dequeue_burst(rxq->rx_ring,
1618 (void **)rx_pkts, nb_pkts, NULL);
1620 /* If VF is available, check that as well */
1621 if (hv->vf_ctx.vf_vsc_switched) {
1622 rte_rwlock_read_lock(&hv->vf_lock);
1623 vf_dev = hn_get_vf_dev(hv);
1624 if (hv->vf_ctx.vf_vsc_switched && vf_dev &&
1625 vf_dev->data->dev_started)
1626 nb_rcv += hn_recv_vf(vf_dev->data->port_id, rxq,
1630 rte_rwlock_read_unlock(&hv->vf_lock);
1636 hn_dev_free_queues(struct rte_eth_dev *dev)
1640 for (i = 0; i < dev->data->nb_rx_queues; i++) {
1641 struct hn_rx_queue *rxq = dev->data->rx_queues[i];
1643 hn_rx_queue_free(rxq, false);
1644 dev->data->rx_queues[i] = NULL;
1646 dev->data->nb_rx_queues = 0;
1648 for (i = 0; i < dev->data->nb_tx_queues; i++) {
1649 hn_dev_tx_queue_release(dev, i);
1650 dev->data->tx_queues[i] = NULL;
1652 dev->data->nb_tx_queues = 0;