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vhost: log error for badly negotiated features

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Since vhost_user_set_features failure is not handled in any way, a
single error log has been added to at least to let the user know that
something has gone wrong.

Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
This commit is contained in:
Dariusz Stojaczyk 2017-06-16 16:32:05 +02:00 committed by Yuanhan Liu
parent 5bdd24e451
commit 058e2d294b
1 changed files with 5 additions and 1 deletions
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6
lib/librte_vhost/vhost_user.c
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@ -168,8 +168,12 @@ vhost_user_set_features(struct virtio_net *dev, uint64_t features)
uint64_t vhost_features = 0;
rte_vhost_driver_get_features(dev->ifname, &vhost_features);
if (features & ~vhost_features)
if (features & ~vhost_features) {
RTE_LOG(ERR, VHOST_CONFIG,
"(%d) received invalid negotiated features.\n",
dev->vid);
return -1;
}
if ((dev->flags & VIRTIO_DEV_RUNNING) && dev->features != features) {
if (dev->notify_ops->features_changed)