netxen: clean up firmware version checks

NX2031 firmware version will never be > 4.0.0, so replace
(adapter->fw_major < 4) checks with pci revision ID check.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/netxen/netxen_nic.h

@@ -1299,7 +1299,7 @@ struct netxen_adapter {
 
 	nx_nic_intr_coalesce_t coal;
 
-	u32 fw_major;
+	u32 resv5;
 	u32 fw_version;
 	const struct firmware *fw;
 };

drivers/net/netxen/netxen_nic_ctx.c

@@ -647,7 +647,7 @@ int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
 		}
 		rds_ring->desc_head = (struct rcv_desc *)addr;
 
-		if (adapter->fw_major < 4)
+		if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
 			rds_ring->crb_rcv_producer =
 				recv_crb_registers[port].crb_rcv_producer[ring];
 	}
@@ -675,7 +675,7 @@ int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
 	}
 
 
-	if (adapter->fw_major >= 4) {
+	if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 		err = nx_fw_cmd_create_rx_ctx(adapter);
 		if (err)
 			goto err_out_free;
@@ -705,7 +705,7 @@ void netxen_free_hw_resources(struct netxen_adapter *adapter)
 
 	int port = adapter->portnum;
 
-	if (adapter->fw_major >= 4) {
+	if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 		nx_fw_cmd_destroy_rx_ctx(adapter);
 		nx_fw_cmd_destroy_tx_ctx(adapter);
 	} else {

drivers/net/netxen/netxen_nic_hw.c

@@ -2045,7 +2045,6 @@ void netxen_nic_get_firmware_info(struct netxen_adapter *adapter)
 	fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
 	fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
 
-	adapter->fw_major = fw_major;
 	adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
 
 	if (adapter->portnum == 0) {

drivers/net/netxen/netxen_nic_init.c

@@ -1477,7 +1477,7 @@ netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
 		NXWR32(adapter, rds_ring->crb_rcv_producer,
 				(producer-1) & (rds_ring->num_desc-1));
 
-		if (adapter->fw_major < 4) {
+		if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 			/*
 			 * Write a doorbell msg to tell phanmon of change in
 			 * receive ring producer

drivers/net/netxen/netxen_nic_main.c

@@ -932,7 +932,7 @@ netxen_nic_attach(struct netxen_adapter *adapter)
 		goto err_out_free_sw;
 	}
 
-	if (adapter->fw_major < 4) {
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 		tx_ring = adapter->tx_ring;
 		tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
 		tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
@@ -1103,7 +1103,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * See if the firmware gave us a virtual-physical port mapping.
 	 */
 	adapter->physical_port = adapter->portnum;
-	if (adapter->fw_major < 4) {
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 		i = NXRD32(adapter, CRB_V2P(adapter->portnum));
 		if (i != 0x55555555)
 			adapter->physical_port = i;
@@ -1727,7 +1727,7 @@ static irqreturn_t netxen_intr(int irq, void *data)
 	}
 
 	/* clear interrupt */
-	if (adapter->fw_major < 4)
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
 		netxen_nic_disable_int(sds_ring);
 
 	adapter->pci_write_immediate(adapter,