[dpdk-dev] [PATCH] net/virtio: init MTU in case no control channel
Zhike Wang
wangzhike at jd.com
Fri Jan 5 11:28:06 CET 2018
From: zhike wang <wangzhike at jd.com>
The max_mtu is kept as zero in case no CRTL channel, which leads
to failure when calling virtio_mtu_set().
Signed-off-by: Zhike Wang <wangzhike at jd.com>
---
drivers/net/virtio/virtio_ethdev.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 21f2131..b7b3364 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1479,6 +1479,8 @@ static int virtio_dev_xstats_get_names(struct rte_eth_dev *dev,
} else {
PMD_INIT_LOG(DEBUG, "config->max_virtqueue_pairs=1");
hw->max_queue_pairs = 1;
+ hw->max_mtu = VIRTIO_MAX_RX_PKTLEN - ETHER_HDR_LEN -
+ VLAN_TAG_LEN - hw->vtnet_hdr_size;
}
ret = virtio_alloc_queues(eth_dev);
--
1.8.3.1
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