sfc: Maintain interrupt moderation values in ticks, not microseconds
This simplifies the implementation a lot.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 1582df7..e3c33fa 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1063,20 +1063,11 @@
/* Set timer register */
if (channel->irq_moderation) {
- /* Round to resolution supported by hardware. The value we
- * program is based at 0. So actual interrupt moderation
- * achieved is ((x + 1) * res).
- */
- channel->irq_moderation -= (channel->irq_moderation %
- FALCON_IRQ_MOD_RESOLUTION);
- if (channel->irq_moderation < FALCON_IRQ_MOD_RESOLUTION)
- channel->irq_moderation = FALCON_IRQ_MOD_RESOLUTION;
EFX_POPULATE_DWORD_2(timer_cmd,
FRF_AB_TC_TIMER_MODE,
FFE_BB_TIMER_MODE_INT_HLDOFF,
FRF_AB_TC_TIMER_VAL,
- channel->irq_moderation /
- FALCON_IRQ_MOD_RESOLUTION - 1);
+ channel->irq_moderation - 1);
} else {
EFX_POPULATE_DWORD_2(timer_cmd,
FRF_AB_TC_TIMER_MODE,