bnx2: Dump some state during tx timeout.
To help debug the problem.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 03eb51f..665253a 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -6279,10 +6279,33 @@
}
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);
}
diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index 4908b9f..939dc44 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -6345,6 +6345,8 @@
#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