cxgb3: Support for Aeluros 2005 PHY

Add support for SR PHY.
Auto-detect phy module type, and report type changes.
Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/cxgb3/common.h

@@ -547,7 +547,19 @@ enum {
 /* PHY interrupt types */
 enum {
 	cphy_cause_link_change = 1,
-	cphy_cause_fifo_error = 2
+	cphy_cause_fifo_error = 2,
+	cphy_cause_module_change = 4,
+};
+
+/* PHY module types */
+enum {
+	phy_modtype_none,
+	phy_modtype_sr,
+	phy_modtype_lr,
+	phy_modtype_lrm,
+	phy_modtype_twinax,
+	phy_modtype_twinax_long,
+	phy_modtype_unknown
 };
 
 /* PHY operations */
@@ -572,7 +584,9 @@ struct cphy_ops {
 
 /* A PHY instance */
 struct cphy {
-	int addr;			/* PHY address */
+	u8 addr;			/* PHY address */
+	u8 modtype;			/* PHY module type */
+	short priv;			/* scratch pad */
 	unsigned int caps;		/* PHY capabilities */
 	struct adapter *adapter;	/* associated adapter */
 	const char *desc;		/* PHY description */
@@ -794,6 +808,8 @@ int t3_ael1002_phy_prep(struct cphy *phy, struct adapter *adapter,
 			int phy_addr, const struct mdio_ops *mdio_ops);
 int t3_ael1006_phy_prep(struct cphy *phy, struct adapter *adapter,
 			int phy_addr, const struct mdio_ops *mdio_ops);
+int t3_ael2005_phy_prep(struct cphy *phy, struct adapter *adapter,
+			int phy_addr, const struct mdio_ops *mdio_ops);
 int t3_qt2045_phy_prep(struct cphy *phy, struct adapter *adapter, int phy_addr,
 		       const struct mdio_ops *mdio_ops);
 int t3_xaui_direct_phy_prep(struct cphy *phy, struct adapter *adapter,

drivers/net/cxgb3/cxgb3_main.c

@@ -208,6 +208,31 @@ void t3_os_link_changed(struct adapter *adapter, int port_id, int link_stat,
 	}
 }
 
+/**
+ *	t3_os_phymod_changed - handle PHY module changes
+ *	@phy: the PHY reporting the module change
+ *	@mod_type: new module type
+ *
+ *	This is the OS-dependent handler for PHY module changes.  It is
+ *	invoked when a PHY module is removed or inserted for any OS-specific
+ *	processing.
+ */
+void t3_os_phymod_changed(struct adapter *adap, int port_id)
+{
+	static const char *mod_str[] = {
+		NULL, "SR", "LR", "LRM", "TWINAX", "TWINAX", "unknown"
+	};
+
+	const struct net_device *dev = adap->port[port_id];
+	const struct port_info *pi = netdev_priv(dev);
+
+	if (pi->phy.modtype == phy_modtype_none)
+		printk(KERN_INFO "%s: PHY module unplugged\n", dev->name);
+	else
+		printk(KERN_INFO "%s: %s PHY module inserted\n", dev->name,
+		       mod_str[pi->phy.modtype]);
+}
+
 static void cxgb_set_rxmode(struct net_device *dev)
 {
 	struct t3_rx_mode rm;

drivers/net/cxgb3/t3_hw.c

@@ -511,7 +511,7 @@ static const struct port_type_info port_types[] = {
 	{ t3_vsc8211_phy_prep },
 	{ NULL},
 	{ t3_xaui_direct_phy_prep },
-	{ NULL },
+	{ t3_ael2005_phy_prep },
 	{ t3_qt2045_phy_prep },
 	{ t3_ael1006_phy_prep },
 	{ NULL },
@@ -1728,6 +1728,8 @@ int t3_phy_intr_handler(struct adapter *adapter)
 				t3_link_changed(adapter, i);
 			if (phy_cause & cphy_cause_fifo_error)
 				p->phy.fifo_errors++;
+			if (phy_cause & cphy_cause_module_change)
+				t3_os_phymod_changed(adapter, i);
 		}
 	}