NetXen: Added ethtool support for user level tools.

NetXen: Added ethtool support for user level firmware management utilities.

Signed-off-by: Amit S. Kale <amitkale@netxen.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 265 insertions, 2 deletions

diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index 00d0524fef13..f7bb8c90537c 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -277,6 +277,7 @@ unsigned long netxen_decode_crb_addr(unsigned long addr)
 
 static long rom_max_timeout = 10000;
 static long rom_lock_timeout = 1000000;
+static long rom_write_timeout = 700;
 
 static inline int rom_lock(struct netxen_adapter *adapter)
 {
@@ -405,7 +406,7 @@ do_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
 {
 	netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
 	netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
-	udelay(100);		/* prevent bursting on CRB */
+	udelay(70);		/* prevent bursting on CRB */
 	netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 	netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
 	if (netxen_wait_rom_done(adapter)) {
@@ -414,13 +415,46 @@ do_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
 	}
 	/* reset abyte_cnt and dummy_byte_cnt */
 	netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
-	udelay(100);		/* prevent bursting on CRB */
+	udelay(70);		/* prevent bursting on CRB */
 	netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 
 	*valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA);
 	return 0;
 }
 
+static inline int 
+do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
+			u8 *bytes, size_t size)
+{
+	int addridx;
+	int ret = 0;
+
+	for (addridx = addr; addridx < (addr + size); addridx += 4) {
+		ret = do_rom_fast_read(adapter, addridx, (int *)bytes);
+		if (ret != 0)
+			break;
+		bytes += 4;
+	}
+
+	return ret;
+}
+
+int
+netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr, 
+				u8 *bytes, size_t size)
+{
+	int ret;
+
+	ret = rom_lock(adapter);
+	if (ret < 0)
+		return ret;
+
+	ret = do_rom_fast_read_words(adapter, addr, bytes, size);
+
+	netxen_rom_unlock(adapter);
+	return ret;
+}
+
 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
 {
 	int ret;
@@ -444,6 +478,152 @@ int netxen_rom_fast_write(struct netxen_adapter *adapter, int addr, int data)
 	netxen_rom_unlock(adapter);
 	return ret;
 }
+
+static inline int do_rom_fast_write_words(struct netxen_adapter *adapter, 
+						int addr, u8 *bytes, size_t size)
+{
+	int addridx = addr;
+	int ret = 0;
+
+	while (addridx < (addr + size)) {
+		int last_attempt = 0;
+		int timeout = 0;
+		int data;
+
+		data = *(u32*)bytes;
+
+		ret = do_rom_fast_write(adapter, addridx, data);
+		if (ret < 0)
+			return ret;
+			
+		while(1) {
+			int data1;
+
+			do_rom_fast_read(adapter, addridx, &data1);
+			if (data1 == data)
+				break;
+
+			if (timeout++ >= rom_write_timeout) {
+				if (last_attempt++ < 4) {
+					ret = do_rom_fast_write(adapter, 
+								addridx, data);
+					if (ret < 0)
+						return ret;
+				}
+				else {
+					printk(KERN_INFO "Data write did not "
+					   "succeed at address 0x%x\n", addridx);
+					break;
+				}
+			}
+		}
+
+		bytes += 4;
+		addridx += 4;
+	}
+
+	return ret;
+}
+
+int netxen_rom_fast_write_words(struct netxen_adapter *adapter, int addr, 
+					u8 *bytes, size_t size)
+{
+	int ret = 0;
+
+	ret = rom_lock(adapter);
+	if (ret < 0)
+		return ret;
+
+	ret = do_rom_fast_write_words(adapter, addr, bytes, size);
+	netxen_rom_unlock(adapter);
+
+	return ret;
+}
+
+int netxen_rom_wrsr(struct netxen_adapter *adapter, int data)
+{
+	int ret;
+
+	ret = netxen_rom_wren(adapter);
+	if (ret < 0)
+		return ret;
+
+	netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_ROM_WDATA, data);
+	netxen_crb_writelit_adapter(adapter, 
+					NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0x1);
+
+	ret = netxen_wait_rom_done(adapter);
+	if (ret < 0)
+		return ret;
+
+	return netxen_rom_wip_poll(adapter);
+}
+
+int netxen_rom_rdsr(struct netxen_adapter *adapter)
+{
+	int ret;
+
+	ret = rom_lock(adapter);
+	if (ret < 0)
+		return ret;
+
+	ret = netxen_do_rom_rdsr(adapter);
+	netxen_rom_unlock(adapter);
+	return ret;
+}
+
+int netxen_backup_crbinit(struct netxen_adapter *adapter)
+{
+	int ret = FLASH_SUCCESS;
+	int val;
+	char *buffer = kmalloc(FLASH_SECTOR_SIZE, GFP_KERNEL);
+
+	if (!buffer)
+		return -ENOMEM;	
+	/* unlock sector 63 */
+	val = netxen_rom_rdsr(adapter);
+	val = val & 0xe3;
+	ret = netxen_rom_wrsr(adapter, val);
+	if (ret != FLASH_SUCCESS)
+		goto out_kfree;
+
+	ret = netxen_rom_wip_poll(adapter);
+	if (ret != FLASH_SUCCESS)
+		goto out_kfree;
+
+	/* copy  sector 0 to sector 63 */
+	ret = netxen_rom_fast_read_words(adapter, CRBINIT_START, 
+						buffer, FLASH_SECTOR_SIZE);
+	if (ret != FLASH_SUCCESS)
+		goto out_kfree;
+
+	ret = netxen_rom_fast_write_words(adapter, FIXED_START, 
+						buffer, FLASH_SECTOR_SIZE);
+	if (ret != FLASH_SUCCESS)
+		goto out_kfree;
+
+	/* lock sector 63 */
+	val = netxen_rom_rdsr(adapter);
+	if (!(val & 0x8)) {
+		val |= (0x1 << 2);
+		/* lock sector 63 */
+		if (netxen_rom_wrsr(adapter, val) == 0) {
+			ret = netxen_rom_wip_poll(adapter);
+			if (ret != FLASH_SUCCESS)
+				goto out_kfree;
+
+			/* lock SR writes */
+			ret = netxen_rom_wip_poll(adapter);
+			if (ret != FLASH_SUCCESS)
+				goto out_kfree;
+		}
+	}
+
+out_kfree:
+	kfree(buffer);
+	return ret;
+}
+
 int netxen_do_rom_se(struct netxen_adapter *adapter, int addr)
 {
 	netxen_rom_wren(adapter);
@@ -458,6 +638,27 @@ int netxen_do_rom_se(struct netxen_adapter *adapter, int addr)
 	return netxen_rom_wip_poll(adapter);
 }
 
+void check_erased_flash(struct netxen_adapter *adapter, int addr)
+{
+	int i;
+	int val;
+	int count = 0, erased_errors = 0;
+	int range;
+
+	range = (addr == USER_START) ? FIXED_START : addr + FLASH_SECTOR_SIZE;
+	
+	for (i = addr; i < range; i += 4) {
+		netxen_rom_fast_read(adapter, i, &val);
+		if (val != 0xffffffff)
+			erased_errors++;
+		count++;
+	}
+
+	if (erased_errors)
+		printk(KERN_INFO "0x%x out of 0x%x words fail to be erased "
+			"for sector address: %x\n", erased_errors, count, addr);
+}
+
 int netxen_rom_se(struct netxen_adapter *adapter, int addr)
 {
 	int ret = 0;
@@ -466,6 +667,68 @@ int netxen_rom_se(struct netxen_adapter *adapter, int addr)
 	}
 	ret = netxen_do_rom_se(adapter, addr);
 	netxen_rom_unlock(adapter);
+	msleep(30);
+	check_erased_flash(adapter, addr);
+
+	return ret;
+}
+
+int
+netxen_flash_erase_sections(struct netxen_adapter *adapter, int start, int end)
+{
+	int ret = FLASH_SUCCESS;
+	int i;
+
+	for (i = start; i < end; i++) {
+		ret = netxen_rom_se(adapter, i * FLASH_SECTOR_SIZE);
+		if (ret)
+			break;
+		ret = netxen_rom_wip_poll(adapter);
+		if (ret < 0)
+			return ret;
+	}
+
+	return ret;
+}
+
+int
+netxen_flash_erase_secondary(struct netxen_adapter *adapter)
+{
+	int ret = FLASH_SUCCESS;
+	int start, end;
+
+	start = SECONDARY_START / FLASH_SECTOR_SIZE;
+	end   = USER_START / FLASH_SECTOR_SIZE;
+	ret = netxen_flash_erase_sections(adapter, start, end);
+
+	return ret;
+}
+
+int
+netxen_flash_erase_primary(struct netxen_adapter *adapter)
+{
+	int ret = FLASH_SUCCESS;
+	int start, end;
+
+	start = PRIMARY_START / FLASH_SECTOR_SIZE;
+	end   = SECONDARY_START / FLASH_SECTOR_SIZE;
+	ret = netxen_flash_erase_sections(adapter, start, end);
+
+	return ret;
+}
+
+int netxen_flash_unlock(struct netxen_adapter *adapter)
+{
+	int ret = 0;
+
+	ret = netxen_rom_wrsr(adapter, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = netxen_rom_wren(adapter);
+	if (ret < 0)
+		return ret;
+
 	return ret;
 }