be2net: Add EEPROM dump feature for Lancer

Implemented eeprom dump using ethtool feature for Lancer.
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/emulex/benet/be_cmds.h

@@ -1167,6 +1167,8 @@ struct lancer_cmd_resp_write_object {
 #define LANCER_READ_FILE_EOF_MASK		0x80000000
 
 #define LANCER_FW_DUMP_FILE			"/dbg/dump.bin"
+#define LANCER_VPD_PF_FILE			"/vpd/ntr_pf.vpd"
+#define LANCER_VPD_VF_FILE			"/vpd/ntr_vf.vpd"
 
 struct lancer_cmd_req_read_object {
 	struct be_cmd_req_hdr hdr;

drivers/net/ethernet/emulex/benet/be_ethtool.c

@@ -727,7 +727,17 @@ be_do_flash(struct net_device *netdev, struct ethtool_flash *efl)
 static int
 be_get_eeprom_len(struct net_device *netdev)
 {
-	return BE_READ_SEEPROM_LEN;
+	struct be_adapter *adapter = netdev_priv(netdev);
+	if (lancer_chip(adapter)) {
+		if (be_physfn(adapter))
+			return lancer_cmd_get_file_len(adapter,
+					LANCER_VPD_PF_FILE);
+		else
+			return lancer_cmd_get_file_len(adapter,
+					LANCER_VPD_VF_FILE);
+	} else {
+		return BE_READ_SEEPROM_LEN;
+	}
 }
 
 static int
@@ -742,6 +752,15 @@ be_read_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
 	if (!eeprom->len)
 		return -EINVAL;
 
+	if (lancer_chip(adapter)) {
+		if (be_physfn(adapter))
+			return lancer_cmd_read_file(adapter, LANCER_VPD_PF_FILE,
+					eeprom->len, data);
+		else
+			return lancer_cmd_read_file(adapter, LANCER_VPD_VF_FILE,
+					eeprom->len, data);
+	}
+
 	eeprom->magic = BE_VENDOR_ID | (adapter->pdev->device<<16);
 
 	memset(&eeprom_cmd, 0, sizeof(struct be_dma_mem));