bnx2x: Supporting BCM8726 PHY

Also adding the ability to recognize the optic module and disable it if it is
not authorized for safety reasons - since this feature might upset some users
which are willing to take the risk, it is optional and can be disabled by
setting an nvram bit (or a trivial driver patch to set this bit).
This dual port PHY requires special handling if the ports are swapped.

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>

drivers/net/bnx2x_hsi.h

@@ -245,7 +245,7 @@ struct port_hw_cfg {			    /* port 0: 0x12c  port 1: 0x2bc */
 #define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073	    0x00000300
 #define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705	    0x00000400
 #define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706	    0x00000500
-#define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8276	    0x00000600
+#define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726	    0x00000600
 #define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481	    0x00000700
 #define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101	    0x00000800
 #define PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE	    0x0000fd00
@@ -299,6 +299,12 @@ struct shared_feat_cfg {				 /* NVRAM Offset */
 
 	u32 config;						/* 0x450 */
 #define SHARED_FEATURE_BMC_ECHO_MODE_EN 	    0x00000001
+
+	/*  Use the values from options 47 and 48 instead of the HW default
+	  values */
+#define SHARED_FEAT_CFG_OVERRIDE_PREEMPHASIS_CFG_DISABLED     0x00000000
+#define SHARED_FEAT_CFG_OVERRIDE_PREEMPHASIS_CFG_ENABLED      0x00000002
+
 #define SHARED_FEATURE_MF_MODE_DISABLED 	    0x00000100
 
 };
@@ -352,6 +358,11 @@ struct port_feat_cfg {			    /* port 0: 0x454  port 1: 0x4c8 */
 #define PORT_FEATURE_MBA_ENABLED		    0x02000000
 #define PORT_FEATURE_MFW_ENABLED		    0x04000000
 
+	/*  Check the optic vendor via i2c before allowing it to be used by
+	  SW */
+#define PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_DISABLED 	      0x00000000
+#define PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_ENABLED		      0x08000000
+
 	u32 wol_config;
 	/* Default is used when driver sets to "auto" mode */
 #define PORT_FEATURE_WOL_DEFAULT_MASK		    0x00000003