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Commit f8dd064e authored by Michael Chan's avatar Michael Chan Committed by David S. Miller
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[BNX2]: Add 5708S parallel detection. 



Add code to parallel detect 1Gbps and 2.5Gbps link speeds.

Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 48b01e2d

drivers/net/bnx2.c

+56 −21
Original line number Diff line number Diff line
@@ -1067,7 +1067,6 @@ bnx2_setup_serdes_phy(struct bnx2 *bp) 
		bnx2_write_phy(bp, MII_ADVERTISE, new_adv);

		bnx2_write_phy(bp, MII_BMCR, bmcr | BMCR_ANRESTART |

			BMCR_ANENABLE);

		if (CHIP_NUM(bp) == CHIP_NUM_5706) {

		/* Speed up link-up time when the link partner

		 * does not autonegotiate which is very common

		 * in blade servers. Some blade servers use
@@ -1080,7 +1079,6 @@ bnx2_setup_serdes_phy(struct bnx2 *bp) 
		bp->serdes_an_pending = 1;

		mod_timer(&bp->timer, jiffies + bp->current_interval);

	}

	}



	return 0;

}
@@ -4227,6 +4225,41 @@ bnx2_5706_serdes_timer(struct bnx2 *bp) 
	spin_unlock(&bp->phy_lock);

}



static void

bnx2_5708_serdes_timer(struct bnx2 *bp)

{

	if ((bp->phy_flags & PHY_2_5G_CAPABLE_FLAG) == 0) {

		bp->serdes_an_pending = 0;

		return;

	}



	spin_lock(&bp->phy_lock);

	if (bp->serdes_an_pending)

		bp->serdes_an_pending--;

	else if ((bp->link_up == 0) && (bp->autoneg & AUTONEG_SPEED)) {

		u32 bmcr;



		bnx2_read_phy(bp, MII_BMCR, &bmcr);



		if (bmcr & BMCR_ANENABLE) {

			bmcr &= ~BMCR_ANENABLE;

			bmcr |= BMCR_FULLDPLX | BCM5708S_BMCR_FORCE_2500;

			bnx2_write_phy(bp, MII_BMCR, bmcr);

			bp->current_interval = SERDES_FORCED_TIMEOUT;

		} else {

			bmcr &= ~(BMCR_FULLDPLX | BCM5708S_BMCR_FORCE_2500);

			bmcr |= BMCR_ANENABLE;

			bnx2_write_phy(bp, MII_BMCR, bmcr);

			bp->serdes_an_pending = 2;

			bp->current_interval = bp->timer_interval;

		}



	} else

		bp->current_interval = bp->timer_interval;



	spin_unlock(&bp->phy_lock);

}



static void

bnx2_timer(unsigned long data)

{
@@ -4244,9 +4277,12 @@ bnx2_timer(unsigned long data) 


	bp->stats_blk->stat_FwRxDrop = REG_RD_IND(bp, BNX2_FW_RX_DROP_COUNT);



	if ((bp->phy_flags & PHY_SERDES_FLAG) &&

	    (CHIP_NUM(bp) == CHIP_NUM_5706))

	if (bp->phy_flags & PHY_SERDES_FLAG) {

		if (CHIP_NUM(bp) == CHIP_NUM_5706)

			bnx2_5706_serdes_timer(bp);

		else if (CHIP_NUM(bp) == CHIP_NUM_5708)

			bnx2_5708_serdes_timer(bp);

	}



bnx2_restart_timer:

	mod_timer(&bp->timer, jiffies + bp->current_interval);
@@ -4917,12 +4953,11 @@ bnx2_nway_reset(struct net_device *dev) 
		msleep(20);



		spin_lock_bh(&bp->phy_lock);

		if (CHIP_NUM(bp) == CHIP_NUM_5706) {



		bp->current_interval = SERDES_AN_TIMEOUT;

		bp->serdes_an_pending = 1;

		mod_timer(&bp->timer, jiffies + bp->current_interval);

	}

	}



	bnx2_read_phy(bp, MII_BMCR, &bmcr);

	bmcr &= ~BMCR_LOOPBACK;

drivers/net/bnx2.h

+1 −0
Original line number Diff line number Diff line
@@ -4040,6 +4040,7 @@ struct bnx2 { 


	u8			serdes_an_pending;

#define SERDES_AN_TIMEOUT	(HZ / 3)

#define SERDES_FORCED_TIMEOUT	(HZ / 10)



	u8			mac_addr[8];