Since xsk's TX queue is consumed by TX NAPI, if sq is bound to xsk, then we must stop tx napi from being disabled.
Signed-off-by: Xuan Zhuo <[email protected]> --- drivers/net/virtio/main.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio/main.c b/drivers/net/virtio/main.c index ed79e750bc6c..232cf151abff 100644 --- a/drivers/net/virtio/main.c +++ b/drivers/net/virtio/main.c @@ -2728,8 +2728,15 @@ static int virtnet_set_coalesce(struct net_device *dev, return ret; if (update_napi) { - for (i = 0; i < vi->max_queue_pairs; i++) + for (i = 0; i < vi->max_queue_pairs; i++) { + /* xsk xmit depend on the tx napi. So if xsk is active, + * prevent modifications to tx napi. + */ + if (rtnl_dereference(vi->sq[i].xsk.pool)) + continue; + vi->sq[i].napi.weight = napi_weight; + } } return ret; -- 2.32.0.3.g01195cf9f _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
