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Commit 20175c57 authored by Michael Chan's avatar Michael Chan Committed by David S. Miller
Browse files

bnx2: Dump some state during tx timeout. 



To help debug the problem.

Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarBenjamin Li <benli@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 51bf6bb4

drivers/net/bnx2.c

+23 −0
Original line number Diff line number Diff line
@@ -6278,11 +6278,34 @@ bnx2_reset_task(struct work_struct *work) 
	rtnl_unlock();

}



static void

bnx2_dump_state(struct bnx2 *bp)

{

	struct net_device *dev = bp->dev;



	printk(KERN_ERR PFX "%s DEBUG: intr_sem[%x]\n", dev->name,

		atomic_read(&bp->intr_sem));

	printk(KERN_ERR PFX "%s DEBUG: EMAC_TX_STATUS[%08x] "

			    "RPM_MGMT_PKT_CTRL[%08x]\n", dev->name,

		REG_RD(bp, BNX2_EMAC_TX_STATUS),

		REG_RD(bp, BNX2_RPM_MGMT_PKT_CTRL));

	printk(KERN_ERR PFX "%s DEBUG: MCP_STATE_P0[%08x] MCP_STATE_P1[%08x]\n",

		dev->name, bnx2_reg_rd_ind(bp, BNX2_MCP_STATE_P0),

		bnx2_reg_rd_ind(bp, BNX2_MCP_STATE_P1));

	printk(KERN_ERR PFX "%s DEBUG: HC_STATS_INTERRUPT_STATUS[%08x]\n",

		dev->name, REG_RD(bp, BNX2_HC_STATS_INTERRUPT_STATUS));

	if (bp->flags & BNX2_FLAG_USING_MSIX)

		printk(KERN_ERR PFX "%s DEBUG: PBA[%08x]\n", dev->name,

			REG_RD(bp, BNX2_PCI_GRC_WINDOW3_BASE));

}



static void

bnx2_tx_timeout(struct net_device *dev)

{

	struct bnx2 *bp = netdev_priv(dev);



	bnx2_dump_state(bp);



	/* This allows the netif to be shutdown gracefully before resetting */

	schedule_work(&bp->reset_task);

}

drivers/net/bnx2.h

+2 −0
Original line number Diff line number Diff line
@@ -6345,6 +6345,8 @@ struct l2_fhdr { 


#define BNX2_MCP_ROM					0x00150000

#define BNX2_MCP_SCRATCH				0x00160000

#define BNX2_MCP_STATE_P1				 0x0016f9c8

#define BNX2_MCP_STATE_P0				 0x0016fdc8



#define BNX2_SHM_HDR_SIGNATURE				BNX2_MCP_SCRATCH

#define BNX2_SHM_HDR_SIGNATURE_SIG_MASK			 0xffff0000