From: patrick.fu@intel.com
To: stable@dpdk.org
Cc: bluca@debian.org, ktraynor@redhat.com,
maxime.coquelin@redhat.com, zhihong.wang@intel.com,
tiwei.bie@intel.com, Patrick Fu <patrick.fu@intel.com>
Subject: [dpdk-stable] [PATCH 17.11] net/virtio: init MTU in case no control channel
Date: Fri, 11 Oct 2019 14:35:42 +0800 [thread overview]
Message-ID: <1570775742-413094-1-git-send-email-patrick.fu@intel.com> (raw)
From: Patrick Fu <patrick.fu@intel.com>
[backport from commit id: 240da8b2143b7be372cf6388f028b26b15f16776]
The max_mtu is kept as zero in case no CRTL channel, which leads
to failure when calling virtio_mtu_set().
Signed-off-by: Patrick Fu <patrick.fu@intel.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 e0328f6..c9076ea 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1508,6 +1508,8 @@ 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
next reply other threads:[~2019-10-11 6:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-11 6:35 patrick.fu [this message]
2019-10-24 8:48 ` Luca Boccassi
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