diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2011-12-08 19:51:47 +0000 |
|---|---|---|
| committer | Ben Hutchings <bhutchings@solarflare.com> | 2012-01-27 00:10:50 +0000 |
| commit | cc180b69c009ec52f67a56d96b9073b9f774b323 (patch) | |
| tree | 2d20225099a9a08d3471aeb3cd8ce4295417e5e6 /drivers/net/ethernet/sfc/nic.h | |
| parent | 6aa9c7f625e8ce07060467051b68fc068118ee64 (diff) | |
sfc: Correct interrupt timer quantum for Siena (normal and turbo mode)
We currently assume that the timer quantum for Siena is 5 us, the same
as for Falcon. This is not correct; timer ticks are generated on a
rota which takes a minimum of 768 cycles (each event delivery or other
timer change will delay it by 3 cycles). The timer quantum should be
6.144 or 3.072 us depending on whether turbo mode is active.
Replace EFX_IRQ_MOD_RESOLUTION with a timer_quantum_ns field in struct
efx_nic, initialised by the efx_nic_type::probe function.
While we're at it, replace EFX_IRQ_MOD_MAX with a timer_period_max
field in struct efx_nic_type.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers/net/ethernet/sfc/nic.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/nic.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h index cfda6ded24fe..a3ccd0b9d78d 100644 --- a/drivers/net/ethernet/sfc/nic.h +++ b/drivers/net/ethernet/sfc/nic.h @@ -205,9 +205,6 @@ extern irqreturn_t efx_nic_fatal_interrupt(struct efx_nic *efx); extern irqreturn_t falcon_legacy_interrupt_a1(int irq, void *dev_id); extern void falcon_irq_ack_a1(struct efx_nic *efx); -#define EFX_IRQ_MOD_RESOLUTION 5 -#define EFX_IRQ_MOD_MAX 0x1000 - /* Global Resources */ extern int efx_nic_flush_queues(struct efx_nic *efx); extern void falcon_start_nic_stats(struct efx_nic *efx); |