net/qede/base: support periodic Doorbell Recovery

[dpdk.git] / drivers / net / virtio / virtio_rxtx_simple_neon.c

diff --git a/drivers/net/virtio/virtio_rxtx_simple_neon.c b/drivers/net/virtio/virtio_rxtx_simple_neon.c
index 793eefb..d6207d7 100644 (file)
--- a/drivers/net/virtio/virtio_rxtx_simple_neon.c
+++ b/drivers/net/virtio/virtio_rxtx_simple_neon.c
@@ -1,34 +1,6 @@
-/*
- *   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>
@@ -40,10 +12,9 @@
 #include <rte_branch_prediction.h>
 #include <rte_cycles.h>
 #include <rte_ether.h>
-#include <rte_ethdev.h>
+#include <rte_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>
@@ -53,9 +24,7 @@
 
 #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)
  *
@@ -72,12 +41,13 @@ virtio_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
 {
        struct virtnet_rx *rxvq = rx_queue;
        struct virtqueue *vq = rxvq->vq;
+       struct virtio_hw *hw = vq->hw;
        uint16_t nb_used;
        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;
+       uint16_t nb_pkts_received = 0;
 
        uint8x16_t shuf_msk1 = {
                0xFF, 0xFF, 0xFF, 0xFF, /* packet type */
@@ -106,6 +76,9 @@ virtio_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
                0, 0
        };
 
+       if (unlikely(hw->started == 0))
+               return nb_pkts_received;
+
        if (unlikely(nb_pkts < RTE_VIRTIO_DESC_PER_LOOP))
                return 0;