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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-11-23 10:42:02 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-11-28 10:47:18 -0800 |
| commit | 5a0d2268d259886f0c87131639d19eb4a67b4532 (patch) | |
| tree | 952e6225fcee027f3a4ae8e1c2b2c889eff3a8b2 /include/linux/netdevice.h | |
| parent | d3c15cab213becc49a6f2ad7f48a59513a5f17dd (diff) | |
| download | lwn-5a0d2268d259886f0c87131639d19eb4a67b4532.tar.gz lwn-5a0d2268d259886f0c87131639d19eb4a67b4532.zip | |
net: add netif_tx_queue_frozen_or_stopped
When testing struct netdev_queue state against FROZEN bit, we also test
XOFF bit. We can test both bits at once and save some cycles.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netdevice.h')
| -rw-r--r-- | include/linux/netdevice.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index badf9285fe0d..7c6ae2f4b9ab 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -493,6 +493,8 @@ static inline void napi_synchronize(const struct napi_struct *n) enum netdev_queue_state_t { __QUEUE_STATE_XOFF, __QUEUE_STATE_FROZEN, +#define QUEUE_STATE_XOFF_OR_FROZEN ((1 << __QUEUE_STATE_XOFF) | \ + (1 << __QUEUE_STATE_FROZEN)) }; struct netdev_queue { @@ -1629,9 +1631,9 @@ static inline int netif_queue_stopped(const struct net_device *dev) return netif_tx_queue_stopped(netdev_get_tx_queue(dev, 0)); } -static inline int netif_tx_queue_frozen(const struct netdev_queue *dev_queue) +static inline int netif_tx_queue_frozen_or_stopped(const struct netdev_queue *dev_queue) { - return test_bit(__QUEUE_STATE_FROZEN, &dev_queue->state); + return dev_queue->state & QUEUE_STATE_XOFF_OR_FROZEN; } /** |