bnx2: Refine coalescing parameters.
- Set the USE_INT_PARAM bit so the rx-frames-irq and tx-frames-irq will take
effect on 5709.
- Increase the default rx-frames to reduce interrupt count.
- Decrease the default rx-frames-irq and tx-frames-irq to catch more events
during NAPI poll.
All these will reduce interrupts without affecting latency.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index e025833..ea6e6b7 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -4921,7 +4921,7 @@
}
if (bp->flags & BNX2_FLAG_ONE_SHOT_MSI)
- val |= BNX2_HC_CONFIG_ONE_SHOT;
+ val |= BNX2_HC_CONFIG_ONE_SHOT | BNX2_HC_CONFIG_USE_INT_PARAM;
REG_WR(bp, BNX2_HC_CONFIG, val);
@@ -7858,13 +7858,13 @@
bp->rx_csum = 1;
- bp->tx_quick_cons_trip_int = 20;
+ bp->tx_quick_cons_trip_int = 2;
bp->tx_quick_cons_trip = 20;
- bp->tx_ticks_int = 80;
+ bp->tx_ticks_int = 18;
bp->tx_ticks = 80;
- bp->rx_quick_cons_trip_int = 6;
- bp->rx_quick_cons_trip = 6;
+ bp->rx_quick_cons_trip_int = 2;
+ bp->rx_quick_cons_trip = 12;
bp->rx_ticks_int = 18;
bp->rx_ticks = 18;