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From: zhike wang <wangzhike@jd.com>
To: <dev@dpdk.org>
Cc: zhike wang <wangzhike@jd.com>
Subject: [dpdk-dev] [PATCH] net/virtio: init MTU in case no control channel
Date: Thu, 4 Jan 2018 16:54:14 -0800	[thread overview]
Message-ID: <1515113654-2738-1-git-send-email-wangzhike@jd.com> (raw)

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@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

             reply	other threads:[~2018-01-05  0:54 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-05  0:54 zhike wang [this message]
2018-01-05  2:11 ` Yang, Zhiyong
2018-01-05 10:25 ` Thomas Monjalon
  -- strict thread matches above, loose matches on Subject: below --
2018-01-05 10:28 Zhike Wang
2018-01-09 13:15 ` Yuanhan Liu
2017-10-26  3:09 wangzhike
2017-11-07  3:44 ` Yuanhan Liu
2017-11-12 18:45   ` Thomas Monjalon
2018-01-04 15:16     ` Maxime Coquelin
2018-01-05  1:00       ` 王志克

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