Documentation updates for network interfaces.
1. Add doc for netif_napi_add
2. Remove doc for unused returns from netif_rx
3. Add doc for netif_receive_skb
Signed-off-by: Stephen Hemminger <[EMAIL PROTECTED]>
--- a/include/linux/netdevice.h 2007-10-31 09:16:09.000000000 -0700
+++ b/include/linux/netdevice.h 2007-10-31 10:02:15.000000000 -0700
@@ -739,6 +739,16 @@ static inline void *netdev_priv(const st
*/
#define SET_NETDEV_DEV(net, pdev) ((net)->dev.parent = (pdev))
+/**
+ * netif_napi_add - initialize a napi context
+ * @dev: network device
+ * @napi: napi context
+ * @poll: polling function
+ * @weight: default weight
+ *
+ * netif_napi_add() must be used to initialize a napi context prior to calling
+ * *any* of the other napi related functions.
+ */
static inline void netif_napi_add(struct net_device *dev,
struct napi_struct *napi,
int (*poll)(struct napi_struct *, int),
--- a/net/core/dev.c 2007-10-31 09:16:09.000000000 -0700
+++ b/net/core/dev.c 2007-10-31 10:00:39.000000000 -0700
@@ -1751,9 +1751,6 @@ DEFINE_PER_CPU(struct netif_rx_stats, ne
*
* return values:
* NET_RX_SUCCESS (no congestion)
- * NET_RX_CN_LOW (low congestion)
- * NET_RX_CN_MOD (moderate congestion)
- * NET_RX_CN_HIGH (high congestion)
* NET_RX_DROP (packet was dropped)
*
*/
@@ -2001,6 +1998,21 @@ out:
}
#endif
+/**
+ * netif_receive_skb - process receive buffer from network
+ * @skb: buffer to process
+ *
+ * netif_receive_skb() is the main receive data processing function.
+ * It always succeeds. The buffer may be dropped during processing
+ * for congestion control or by the protocol layers.
+ *
+ * This function may only be called from softirq context and interrupts
+ * should be enabled.
+ *
+ * return values (usually ignored).
+ * NET_RX_SUCCESS (no congestion)
+ * NET_RX_DROP (packet was dropped)
+ */
int netif_receive_skb(struct sk_buff *skb)
{
struct packet_type *ptype, *pt_prev;
-
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