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sfc: Create multiple TX queues

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Create a core TX queue and 2 hardware TX queues for each channel.
If separate_tx_channels is set, create equal numbers of RX and TX
channels instead.

Rewrite the channel and queue iteration macros accordingly.
Eliminate efx_channel::used_flags as redundant.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings
2010-04-28 09:30:43 +00:00
committed by David S. Miller
parent 5298c37f4d
commit a4900ac9f7
8 changed files with 140 additions and 123 deletions
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4
drivers/net/sfc/efx.h
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@@ -35,8 +35,8 @@ efx_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev);
extern netdev_tx_t
efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
extern void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
extern void efx_stop_queue(struct efx_nic *efx);
extern void efx_wake_queue(struct efx_nic *efx);
extern void efx_stop_queue(struct efx_channel *channel);
extern void efx_wake_queue(struct efx_channel *channel);
#define EFX_TXQ_SIZE 1024
#define EFX_TXQ_MASK (EFX_TXQ_SIZE - 1)