[RFC PATCH v2 net-next 01/12] net: core: trivial netif_receive_skb_list() entry point
From: Edward Cree <hidden>
Date: 2018-06-26 18:17:23
Subsystem:
networking drivers, networking [general], the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Just calls netif_receive_skb() in a loop. Signed-off-by: Edward Cree <redacted> --- include/linux/netdevice.h | 1 + net/core/dev.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3ec9850c7936..105087369779 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h@@ -3364,6 +3364,7 @@ int netif_rx(struct sk_buff *skb); int netif_rx_ni(struct sk_buff *skb); int netif_receive_skb(struct sk_buff *skb); int netif_receive_skb_core(struct sk_buff *skb); +void netif_receive_skb_list(struct sk_buff_head *list); gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb); void napi_gro_flush(struct napi_struct *napi, bool flush_old); struct sk_buff *napi_get_frags(struct napi_struct *napi);
diff --git a/net/core/dev.c b/net/core/dev.c
index a5aa1c7444e6..473e24e31e38 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c@@ -4792,6 +4792,26 @@ int netif_receive_skb(struct sk_buff *skb) } EXPORT_SYMBOL(netif_receive_skb); +/** + * netif_receive_skb_list - process many receive buffers from network + * @list: list of skbs to process. Must not be shareable (e.g. it may + * be on the stack) + * + * For now, just calls netif_receive_skb() in a loop, ignoring the + * return value. + * + * This function may only be called from softirq context and interrupts + * should be enabled. + */ +void netif_receive_skb_list(struct sk_buff_head *list) +{ + struct sk_buff *skb; + + while ((skb = __skb_dequeue(list)) != NULL) + netif_receive_skb(skb); +} +EXPORT_SYMBOL(netif_receive_skb_list); + DEFINE_PER_CPU(struct work_struct, flush_works); /* Network device is going away, flush any packets still pending */