diff options
| author | Steve Hodgson <shodgson@solarflare.com> | 2010-09-10 06:42:22 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-09-10 12:27:33 -0700 |
| commit | ecc910f520ba8f22848982ee816ad75c449b805d (patch) | |
| tree | e934380209532b831b7e7e334ddc33d75db7eef5 /drivers/net/sfc/efx.h | |
| parent | 8313aca38b3937947fffebca6e34bac8e24300c8 (diff) | |
sfc: Make the dmaq size a run-time setting (rather than compile-time)
- Allow the ring size to be specified in non
power-of-two sizes (for instance to limit
the amount of receive buffers).
- Automatically size the event queue.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sfc/efx.h')
| -rw-r--r-- | drivers/net/sfc/efx.h | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/net/sfc/efx.h b/drivers/net/sfc/efx.h index d6b172b1a8e..c15a2d3c2c2 100644 --- a/drivers/net/sfc/efx.h +++ b/drivers/net/sfc/efx.h @@ -37,8 +37,6 @@ 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_channel *channel); extern void efx_wake_queue(struct efx_channel *channel); -#define EFX_TXQ_SIZE 1024 -#define EFX_TXQ_MASK (EFX_TXQ_SIZE - 1) /* RX */ extern int efx_probe_rx_queue(struct efx_rx_queue *rx_queue); @@ -53,13 +51,16 @@ extern void __efx_rx_packet(struct efx_channel *channel, extern void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index, unsigned int len, bool checksummed, bool discard); extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue); -#define EFX_RXQ_SIZE 1024 -#define EFX_RXQ_MASK (EFX_RXQ_SIZE - 1) + +#define EFX_MAX_DMAQ_SIZE 4096UL +#define EFX_DEFAULT_DMAQ_SIZE 1024UL +#define EFX_MIN_DMAQ_SIZE 512UL + +#define EFX_MAX_EVQ_SIZE 16384UL +#define EFX_MIN_EVQ_SIZE 512UL /* Channels */ extern void efx_process_channel_now(struct efx_channel *channel); -#define EFX_EVQ_SIZE 4096 -#define EFX_EVQ_MASK (EFX_EVQ_SIZE - 1) /* Ports */ extern int efx_reconfigure_port(struct efx_nic *efx); |