bnx2x: Add TX fault check for fiber PHYs

In case TX fault is detected on Fiber PHYs, declare the link as down until TX fault is gone.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2x/bnx2x_reg.h b/drivers/net/bnx2x/bnx2x_reg.h
index 86bba25..7260d09 100644
--- a/drivers/net/bnx2x/bnx2x_reg.h
+++ b/drivers/net/bnx2x/bnx2x_reg.h
@@ -6037,6 +6037,7 @@
 #define MDIO_PMA_REG_BCM_CTRL		0x0096
 #define MDIO_PMA_REG_FEC_CTRL		0x00ab
 #define MDIO_PMA_REG_RX_ALARM_CTRL	0x9000
+#define MDIO_PMA_REG_TX_ALARM_CTRL	0x9001
 #define MDIO_PMA_REG_LASI_CTRL		0x9002
 #define MDIO_PMA_REG_RX_ALARM		0x9003
 #define MDIO_PMA_REG_TX_ALARM		0x9004