Commit c770a65c authored by Michael Chan's avatar Michael Chan Committed by David S. Miller
Browse files

[BNX2]: change irq locks to bh locks 



Change all locks from spin_lock_irqsave() to spin_lock_bh(). All
places that require spinlocks are in BH context.

Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e89bbf10

drivers/net/bnx2.c

+24 −32
Original line number Diff line number Diff line
@@ -1350,15 +1350,13 @@ bnx2_tx_int(struct bnx2 *bp) 
	bp->tx_cons = sw_cons;



	if (unlikely(netif_queue_stopped(bp->dev))) {

		unsigned long flags;



		spin_lock_irqsave(&bp->tx_lock, flags);

		spin_lock(&bp->tx_lock);

		if ((netif_queue_stopped(bp->dev)) &&

		    (bnx2_tx_avail(bp) > MAX_SKB_FRAGS)) {



			netif_wake_queue(bp->dev);

		}

		spin_unlock_irqrestore(&bp->tx_lock, flags);

		spin_unlock(&bp->tx_lock);

	}

}
@@ -1598,11 +1596,9 @@ bnx2_poll(struct net_device *dev, int *budget) 
		(bp->status_blk->status_attn_bits_ack &

		STATUS_ATTN_BITS_LINK_STATE)) {



		unsigned long flags;



		spin_lock_irqsave(&bp->phy_lock, flags);

		spin_lock(&bp->phy_lock);

		bnx2_phy_int(bp);

		spin_unlock_irqrestore(&bp->phy_lock, flags);

		spin_unlock(&bp->phy_lock);

	}



	if (bp->status_blk->status_tx_quick_consumer_index0 != bp->tx_cons) {
@@ -1645,9 +1641,8 @@ bnx2_set_rx_mode(struct net_device *dev) 
	struct bnx2 *bp = dev->priv;

	u32 rx_mode, sort_mode;

	int i;

	unsigned long flags;



	spin_lock_irqsave(&bp->phy_lock, flags);

	spin_lock_bh(&bp->phy_lock);



	rx_mode = bp->rx_mode & ~(BNX2_EMAC_RX_MODE_PROMISCUOUS |

				  BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG);
@@ -1708,7 +1703,7 @@ bnx2_set_rx_mode(struct net_device *dev) 
	REG_WR(bp, BNX2_RPM_SORT_USER0, sort_mode);

	REG_WR(bp, BNX2_RPM_SORT_USER0, sort_mode | BNX2_RPM_SORT_USER0_ENA);



	spin_unlock_irqrestore(&bp->phy_lock, flags);

	spin_unlock_bh(&bp->phy_lock);

}



static void
@@ -3768,10 +3763,10 @@ bnx2_test_link(struct bnx2 *bp) 
{

	u32 bmsr;



	spin_lock_irq(&bp->phy_lock);

	spin_lock_bh(&bp->phy_lock);

	bnx2_read_phy(bp, MII_BMSR, &bmsr);

	bnx2_read_phy(bp, MII_BMSR, &bmsr);

	spin_unlock_irq(&bp->phy_lock);

	spin_unlock_bh(&bp->phy_lock);

		

	if (bmsr & BMSR_LSTATUS) {

		return 0;
@@ -3828,9 +3823,8 @@ bnx2_timer(unsigned long data) 


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

	    (CHIP_NUM(bp) == CHIP_NUM_5706)) {

		unsigned long flags;



		spin_lock_irqsave(&bp->phy_lock, flags);

		spin_lock(&bp->phy_lock);

		if (bp->serdes_an_pending) {

			bp->serdes_an_pending--;

		}
@@ -3884,7 +3878,7 @@ bnx2_timer(unsigned long data) 
		else

			bp->current_interval = bp->timer_interval;



		spin_unlock_irqrestore(&bp->phy_lock, flags);

		spin_unlock(&bp->phy_lock);

	}



bnx2_restart_timer:
@@ -4168,14 +4162,12 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev) 
	dev->trans_start = jiffies;



	if (unlikely(bnx2_tx_avail(bp) <= MAX_SKB_FRAGS)) {

		unsigned long flags;



		spin_lock_irqsave(&bp->tx_lock, flags);

		spin_lock(&bp->tx_lock);

		netif_stop_queue(dev);

		

		if (bnx2_tx_avail(bp) > MAX_SKB_FRAGS)

			netif_wake_queue(dev);

		spin_unlock_irqrestore(&bp->tx_lock, flags);

		spin_unlock(&bp->tx_lock);

	}



	return NETDEV_TX_OK;
@@ -4411,11 +4403,11 @@ bnx2_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) 
	bp->req_line_speed = req_line_speed;

	bp->req_duplex = req_duplex;



	spin_lock_irq(&bp->phy_lock);

	spin_lock_bh(&bp->phy_lock);



	bnx2_setup_phy(bp);



	spin_unlock_irq(&bp->phy_lock);

	spin_unlock_bh(&bp->phy_lock);



	return 0;

}
@@ -4485,16 +4477,16 @@ bnx2_nway_reset(struct net_device *dev) 
		return -EINVAL;

	}



	spin_lock_irq(&bp->phy_lock);

	spin_lock_bh(&bp->phy_lock);



	/* Force a link down visible on the other side */

	if (bp->phy_flags & PHY_SERDES_FLAG) {

		bnx2_write_phy(bp, MII_BMCR, BMCR_LOOPBACK);

		spin_unlock_irq(&bp->phy_lock);

		spin_unlock_bh(&bp->phy_lock);



		msleep(20);



		spin_lock_irq(&bp->phy_lock);

		spin_lock_bh(&bp->phy_lock);

		if (CHIP_NUM(bp) == CHIP_NUM_5706) {

			bp->current_interval = SERDES_AN_TIMEOUT;

			bp->serdes_an_pending = 1;
@@ -4506,7 +4498,7 @@ bnx2_nway_reset(struct net_device *dev) 
	bmcr &= ~BMCR_LOOPBACK;

	bnx2_write_phy(bp, MII_BMCR, bmcr | BMCR_ANRESTART | BMCR_ANENABLE);



	spin_unlock_irq(&bp->phy_lock);

	spin_unlock_bh(&bp->phy_lock);



	return 0;

}
@@ -4692,11 +4684,11 @@ bnx2_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause) 
		bp->autoneg &= ~AUTONEG_FLOW_CTRL;

	}



	spin_lock_irq(&bp->phy_lock);

	spin_lock_bh(&bp->phy_lock);



	bnx2_setup_phy(bp);



	spin_unlock_irq(&bp->phy_lock);

	spin_unlock_bh(&bp->phy_lock);



	return 0;

}
@@ -5046,9 +5038,9 @@ bnx2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 
	case SIOCGMIIREG: {

		u32 mii_regval;



		spin_lock_irq(&bp->phy_lock);

		spin_lock_bh(&bp->phy_lock);

		err = bnx2_read_phy(bp, data->reg_num & 0x1f, &mii_regval);

		spin_unlock_irq(&bp->phy_lock);

		spin_unlock_bh(&bp->phy_lock);



		data->val_out = mii_regval;
@@ -5059,9 +5051,9 @@ bnx2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 
		if (!capable(CAP_NET_ADMIN))

			return -EPERM;



		spin_lock_irq(&bp->phy_lock);

		spin_lock_bh(&bp->phy_lock);

		err = bnx2_write_phy(bp, data->reg_num & 0x1f, data->val_in);

		spin_unlock_irq(&bp->phy_lock);

		spin_unlock_bh(&bp->phy_lock);



		return err;