[PATCH 5/5] netvsc: replace netdev_alloc_skb_ip_align with napi_alloc_skb
From: Stephen Hemminger <stephen@networkplumber.org>
Date: 2017-02-27 18:36:03
Subsystem:
hyper-v/azure core and drivers, networking drivers, the rest · Maintainers:
"K. Y. Srinivasan", Haiyang Zhang, Wei Liu, Dexuan Cui, Long Li, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Gives potential performance gain. Signed-off-by: Stephen Hemminger <redacted> --- drivers/net/hyperv/netvsc_drv.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 6dcd1f08b834..f95d686b7957 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c@@ -589,13 +589,14 @@ void netvsc_linkstatus_callback(struct hv_device *device_obj, } static struct sk_buff *netvsc_alloc_recv_skb(struct net_device *net, + struct napi_struct *napi, const struct ndis_tcp_ip_checksum_info *csum_info, const struct ndis_pkt_8021q_info *vlan, void *data, u32 buflen) { struct sk_buff *skb; - skb = netdev_alloc_skb_ip_align(net, buflen); + skb = napi_alloc_skb(napi, buflen); if (!skb) return skb;
@@ -664,7 +665,8 @@ int netvsc_recv_callback(struct net_device *net, net = vf_netdev; /* Allocate a skb - TODO direct I/O to pages? */ - skb = netvsc_alloc_recv_skb(net, csum_info, vlan, data, len); + skb = netvsc_alloc_recv_skb(net, &nvchan->napi, + csum_info, vlan, data, len); if (unlikely(!skb)) { ++net->stats.rx_dropped; rcu_read_unlock();
--
2.11.0