asix: Rework reading from EEPROM
The current code for reading the EEPROM via ethtool in the asix
driver has a few issues. It cannot handle odd length values
(accesses must be aligned at 16 bit boundaries) and interprets the
offset provided by ethtool as 16 bit word offset instead as byte offset.
The new code for asix_get_eeprom() introduced by this patch is
modeled after the code in
drivers/net/ethernet/atheros/atl1e/atl1e_ethtool.c
and provides read access to the entire EEPROM with arbitrary
offsets and lengths.
Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/usb/asix.h b/drivers/net/usb/asix.h
index 77d9e4c..fbff177 100644
--- a/drivers/net/usb/asix.h
+++ b/drivers/net/usb/asix.h
@@ -156,8 +156,7 @@
#define AX_GPIO_RSE 0x80 /* Reload serial EEPROM */
#define AX_EEPROM_MAGIC 0xdeadbeef
-#define AX88172_EEPROM_LEN 0x40
-#define AX88772_EEPROM_LEN 0xff
+#define AX_EEPROM_LEN 0x200
/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
struct asix_data {
@@ -165,7 +164,7 @@
u8 mac_addr[ETH_ALEN];
u8 phymode;
u8 ledmode;
- u8 eeprom_len;
+ u8 res;
};
int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,