netxen: qlogic ethernet : Fix endian bug.

Change the datatype of "ip_addr" to __be32 as 'ip' should be in
big endian format.

Adapter needs "ip address" in big endian format stored at lower 32bit
of req.word[1]. netxen_config_ipaddr() now receives 'ip' in big endian
format. To satisfy adapter's need, use memcpy() to copy byte by byte
of 'ip' into lower 32bit of req.word[1].

Mac address and serial number of adapter need to be in little endian format.
Change the data type of the related  variables to __le32 / __le64 or cast it
explicitly to __le32 / __le64 depending upon the requirement.
Signed-off-by: NSantosh Nayak <santoshprasadnayak@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/netxen/netxen_nic.h

@@ -954,7 +954,7 @@ typedef struct nx_mac_list_s {
 
 struct nx_vlan_ip_list {
 	struct list_head list;
-	u32 ip_addr;
+	__be32 ip_addr;
 };
 
 /*
@@ -1780,7 +1780,7 @@ int netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max);
 void netxen_p3_free_mac_list(struct netxen_adapter *adapter);
 int netxen_config_intr_coalesce(struct netxen_adapter *adapter);
 int netxen_config_rss(struct netxen_adapter *adapter, int enable);
-int netxen_config_ipaddr(struct netxen_adapter *adapter, u32 ip, int cmd);
+int netxen_config_ipaddr(struct netxen_adapter *adapter, __be32 ip, int cmd);
 int netxen_linkevent_request(struct netxen_adapter *adapter, int enable);
 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup);
 void netxen_pci_camqm_read_2M(struct netxen_adapter *, u64, u64 *);

drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c

@@ -909,7 +909,7 @@ int netxen_config_rss(struct netxen_adapter *adapter, int enable)
 	return rv;
 }
 
-int netxen_config_ipaddr(struct netxen_adapter *adapter, u32 ip, int cmd)
+int netxen_config_ipaddr(struct netxen_adapter *adapter, __be32 ip, int cmd)
 {
 	nx_nic_req_t req;
 	u64 word;
@@ -922,7 +922,7 @@ int netxen_config_ipaddr(struct netxen_adapter *adapter, u32 ip, int cmd)
 	req.req_hdr = cpu_to_le64(word);
 
 	req.words[0] = cpu_to_le64(cmd);
-	req.words[1] = cpu_to_le64(ip);
+	memcpy(&req.words[1], &ip, sizeof(u32));
 
 	rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 	if (rv != 0) {
@@ -1050,7 +1050,7 @@ int netxen_get_flash_mac_addr(struct netxen_adapter *adapter, u64 *mac)
 	if (netxen_get_flash_block(adapter, offset, sizeof(u64), pmac) == -1)
 		return -1;
 
-	if (*mac == cpu_to_le64(~0ULL)) {
+	if (*mac == ~0ULL) {
 
 		offset = NX_OLD_MAC_ADDR_OFFSET +
 			(adapter->portnum * sizeof(u64));
@@ -1059,7 +1059,7 @@ int netxen_get_flash_mac_addr(struct netxen_adapter *adapter, u64 *mac)
 					offset, sizeof(u64), pmac) == -1)
 			return -1;
 
-		if (*mac == cpu_to_le64(~0ULL))
+		if (*mac == ~0ULL)
 			return -1;
 	}
 	return 0;
@@ -2155,7 +2155,7 @@ static u32 netxen_md_rd_crb(struct netxen_adapter *adapter,
 static u32
 netxen_md_rdrom(struct netxen_adapter *adapter,
 			struct netxen_minidump_entry_rdrom
-				*romEntry, u32 *data_buff)
+				*romEntry, __le32 *data_buff)
 {
 	int i, count = 0;
 	u32 size, lck_val;

drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c

@@ -805,12 +805,12 @@ netxen_check_options(struct netxen_adapter *adapter)
 	char brd_name[NETXEN_MAX_SHORT_NAME];
 	char serial_num[32];
 	int i, offset, val, err;
-	int *ptr32;
+	__le32 *ptr32;
 	struct pci_dev *pdev = adapter->pdev;
 
 	adapter->driver_mismatch = 0;
 
-	ptr32 = (int *)&serial_num;
+	ptr32 = (__le32 *)&serial_num;
 	offset = NX_FW_SERIAL_NUM_OFFSET;
 	for (i = 0; i < 8; i++) {
 		if (netxen_rom_fast_read(adapter, offset, &val) == -1) {