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Commit 7d323bfd authored by Eilon Greenstein's avatar Eilon Greenstein Committed by David S. Miller
Browse files

bnx2x: Change coalescing granularity to 4us 



Signed-off-by: default avatarEilon Greenstein <eilong@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 91545f6e

drivers/net/bnx2x.h

+1 −1
Original line number Diff line number Diff line
@@ -1191,7 +1191,7 @@ static inline u32 reg_poll(struct bnx2x *bp, u32 reg, u32 expected, int ms, 
#define MAX_SP_DESC_CNT			(SP_DESC_CNT - 1)





#define BNX2X_BTR			3

#define BNX2X_BTR			1

#define MAX_SPQ_PENDING			8

drivers/net/bnx2x_main.c

+7 −6
Original line number Diff line number Diff line
@@ -4928,21 +4928,21 @@ static void bnx2x_update_coalesce(struct bnx2x *bp) 
		REG_WR8(bp, BAR_CSTRORM_INTMEM +

			CSTORM_SB_HC_TIMEOUT_U_OFFSET(port, sb_id,

						      U_SB_ETH_RX_CQ_INDEX),

			bp->rx_ticks/12);

			bp->rx_ticks/(4 * BNX2X_BTR));

		REG_WR16(bp, BAR_CSTRORM_INTMEM +

			 CSTORM_SB_HC_DISABLE_U_OFFSET(port, sb_id,

						       U_SB_ETH_RX_CQ_INDEX),

			 (bp->rx_ticks/12) ? 0 : 1);

			 (bp->rx_ticks/(4 * BNX2X_BTR)) ? 0 : 1);



		/* HC_INDEX_C_ETH_TX_CQ_CONS */

		REG_WR8(bp, BAR_CSTRORM_INTMEM +

			CSTORM_SB_HC_TIMEOUT_C_OFFSET(port, sb_id,

						      C_SB_ETH_TX_CQ_INDEX),

			bp->tx_ticks/12);

			bp->tx_ticks/(4 * BNX2X_BTR));

		REG_WR16(bp, BAR_CSTRORM_INTMEM +

			 CSTORM_SB_HC_DISABLE_C_OFFSET(port, sb_id,

						       C_SB_ETH_TX_CQ_INDEX),

			 (bp->tx_ticks/12) ? 0 : 1);

			 (bp->tx_ticks/(4 * BNX2X_BTR)) ? 0 : 1);

	}

}
@@ -9016,8 +9016,9 @@ static int __devinit bnx2x_init_bp(struct bnx2x *bp) 


	bp->rx_csum = 1;



	bp->tx_ticks = 50;

	bp->rx_ticks = 25;

	/* make sure that the numbers are in the right granularity */

	bp->tx_ticks = (50 / (4 * BNX2X_BTR)) * (4 * BNX2X_BTR);

	bp->rx_ticks = (25 / (4 * BNX2X_BTR)) * (4 * BNX2X_BTR);



	timer_interval = (CHIP_REV_IS_SLOW(bp) ? 5*HZ : HZ);

	bp->current_interval = (poll ? poll : timer_interval);