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vhost: remove remaining packets count

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The remained variable stores the same information as the difference
between count and pkt_idx. Remove the remained variable to simplify.

Signed-off-by: Balazs Nemeth <bnemeth@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
Balazs Nemeth 2021-04-13 15:31:03 +02:00 committed by Chenbo Xia
parent d18db8049c
commit 56fa279124
1 changed files with 3 additions and 10 deletions
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13
lib/vhost/virtio_net.c
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@ -1355,16 +1355,14 @@ virtio_dev_rx_packed(struct virtio_net *dev,
uint32_t count)
{
uint32_t pkt_idx = 0;
uint32_t remained = count;
do {
rte_prefetch0(&vq->desc_packed[vq->last_avail_idx]);
if (remained >= PACKED_BATCH_SIZE) {
if (count - pkt_idx >= PACKED_BATCH_SIZE) {
if (!virtio_dev_rx_batch_packed(dev, vq,
&pkts[pkt_idx])) {
pkt_idx += PACKED_BATCH_SIZE;
remained -= PACKED_BATCH_SIZE;
continue;
}
}
@ -1372,7 +1370,6 @@ virtio_dev_rx_packed(struct virtio_net *dev,
if (virtio_dev_rx_single_packed(dev, vq, pkts[pkt_idx]))
break;
pkt_idx++;
remained--;
} while (pkt_idx < count);
@ -2463,16 +2460,14 @@ virtio_dev_tx_packed(struct virtio_net *dev,
uint32_t count)
{
uint32_t pkt_idx = 0;
uint32_t remained = count;
do {
rte_prefetch0(&vq->desc_packed[vq->last_avail_idx]);
if (remained >= PACKED_BATCH_SIZE) {
if (count - pkt_idx >= PACKED_BATCH_SIZE) {
if (!virtio_dev_tx_batch_packed(dev, vq, mbuf_pool,
&pkts[pkt_idx])) {
pkt_idx += PACKED_BATCH_SIZE;
remained -= PACKED_BATCH_SIZE;
continue;
}
}
@ -2481,9 +2476,7 @@ virtio_dev_tx_packed(struct virtio_net *dev,
&pkts[pkt_idx]))
break;
pkt_idx++;
remained--;
} while (remained);
} while (pkt_idx < count);
if (vq->shadow_used_idx) {
do_data_copy_dequeue(vq);