diff options
Diffstat (limited to 'include/linux/netdevice.h')
| -rw-r--r-- | include/linux/netdevice.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 2020a89df12b..838935d1cdbb 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -326,7 +326,8 @@ enum { NAPI_STATE_SCHED, /* Poll is scheduled */ NAPI_STATE_DISABLE, /* Disable pending */ NAPI_STATE_NPSVC, /* Netpoll - don't dequeue from poll_list */ - NAPI_STATE_HASHED, /* In NAPI hash */ + NAPI_STATE_HASHED, /* In NAPI hash (busy polling possible) */ + NAPI_STATE_NO_BUSY_POLL,/* Do not add in napi_hash, no busy polling */ }; enum gro_result { @@ -1939,6 +1940,26 @@ void netif_napi_add(struct net_device *dev, struct napi_struct *napi, int (*poll)(struct napi_struct *, int), int weight); /** + * netif_tx_napi_add - initialize a napi context + * @dev: network device + * @napi: napi context + * @poll: polling function + * @weight: default weight + * + * This variant of netif_napi_add() should be used from drivers using NAPI + * to exclusively poll a TX queue. + * This will avoid we add it into napi_hash[], thus polluting this hash table. + */ +static inline void netif_tx_napi_add(struct net_device *dev, + struct napi_struct *napi, + int (*poll)(struct napi_struct *, int), + int weight) +{ + set_bit(NAPI_STATE_NO_BUSY_POLL, &napi->state); + netif_napi_add(dev, napi, poll, weight); +} + +/** * netif_napi_del - remove a napi context * @napi: napi context * |