-/*
- * BSD LICENSE
- *
- * Copyright (C) Cavium networks Ltd. 2016
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Cavium networks nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016 Cavium, Inc
+ */
#include <stdint.h>
#include <stdio.h>
#include <rte_branch_prediction.h>
#include <rte_cycles.h>
#include <rte_ether.h>
-#include <rte_ethdev.h>
+#include <ethdev_driver.h>
#include <rte_errno.h>
#include <rte_memory.h>
-#include <rte_memzone.h>
#include <rte_mempool.h>
#include <rte_malloc.h>
#include <rte_mbuf.h>
#include "virtio_rxtx_simple.h"
-#define RTE_VIRTIO_VPMD_RX_BURST 32
#define RTE_VIRTIO_DESC_PER_LOOP 8
-#define RTE_VIRTIO_VPMD_RX_REARM_THRESH RTE_VIRTIO_VPMD_RX_BURST
/* virtio vPMD receive routine, only accept(nb_pkts >= RTE_VIRTIO_DESC_PER_LOOP)
*
* - nb_pkts < RTE_VIRTIO_DESC_PER_LOOP, just return no packet
*/
uint16_t
-virtio_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
- uint16_t nb_pkts)
+virtio_recv_pkts_vec(void *rx_queue,
+ struct rte_mbuf **__rte_restrict rx_pkts,
+ uint16_t nb_pkts)
{
struct virtnet_rx *rxvq = rx_queue;
- struct virtqueue *vq = rxvq->vq;
- uint16_t nb_used;
+ struct virtqueue *vq = virtnet_rxq_to_vq(rxvq);
+ struct virtio_hw *hw = vq->hw;
+ uint16_t nb_used, nb_total;
uint16_t desc_idx;
struct vring_used_elem *rused;
struct rte_mbuf **sw_ring;
struct rte_mbuf **sw_ring_end;
- uint16_t nb_pkts_received;
+ struct rte_mbuf **ref_rx_pkts;
+ uint16_t nb_pkts_received = 0;
uint8x16_t shuf_msk1 = {
0xFF, 0xFF, 0xFF, 0xFF, /* packet type */
*/
uint16x8_t len_adjust = {
0, 0,
- (uint16_t)vq->hw->vtnet_hdr_size, 0,
- (uint16_t)vq->hw->vtnet_hdr_size,
+ (uint16_t)hw->vtnet_hdr_size, 0,
+ (uint16_t)hw->vtnet_hdr_size,
0,
0, 0
};
+ if (unlikely(hw->started == 0))
+ return nb_pkts_received;
+
if (unlikely(nb_pkts < RTE_VIRTIO_DESC_PER_LOOP))
return 0;
- nb_used = VIRTQUEUE_NUSED(vq);
+ if (vq->vq_free_cnt >= RTE_VIRTIO_VPMD_RX_REARM_THRESH) {
+ virtio_rxq_rearm_vec(rxvq);
+ if (unlikely(virtqueue_kick_prepare(vq)))
+ virtqueue_notify(vq);
+ }
- rte_rmb();
+ /* virtqueue_nused has a load-acquire or rte_io_rmb inside */
+ nb_used = virtqueue_nused(vq);
if (unlikely(nb_used == 0))
return 0;
nb_used = RTE_MIN(nb_used, nb_pkts);
desc_idx = (uint16_t)(vq->vq_used_cons_idx & (vq->vq_nentries - 1));
- rused = &vq->vq_ring.used->ring[desc_idx];
+ rused = &vq->vq_split.ring.used->ring[desc_idx];
sw_ring = &vq->sw_ring[desc_idx];
sw_ring_end = &vq->sw_ring[vq->vq_nentries];
rte_prefetch_non_temporal(rused);
- if (vq->vq_free_cnt >= RTE_VIRTIO_VPMD_RX_REARM_THRESH) {
- virtio_rxq_rearm_vec(rxvq);
- if (unlikely(virtqueue_kick_prepare(vq)))
- virtqueue_notify(vq);
- }
-
+ nb_total = nb_used;
+ ref_rx_pkts = rx_pkts;
for (nb_pkts_received = 0;
- nb_pkts_received < nb_used;) {
+ nb_pkts_received < nb_total;) {
uint64x2_t desc[RTE_VIRTIO_DESC_PER_LOOP / 2];
uint64x2_t mbp[RTE_VIRTIO_DESC_PER_LOOP / 2];
uint64x2_t pkt_mb[RTE_VIRTIO_DESC_PER_LOOP];
vq->vq_used_cons_idx += nb_pkts_received;
vq->vq_free_cnt += nb_pkts_received;
rxvq->stats.packets += nb_pkts_received;
+ for (nb_used = 0; nb_used < nb_pkts_received; nb_used++)
+ virtio_update_packet_stats(&rxvq->stats, ref_rx_pkts[nb_used]);
+
return nb_pkts_received;
}