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net: e1000: do not attempt to set hwaddr for i210 without FLASH 

commit f1bcad22dd ("net: e1000: add support for writing to EEPROM")
adds support for storing hwaddr in EEPROM however i210 devices do not
support this and thus results in errors such as:
Warning: e1000#0 failed to set MAC address'

Check if a flash device is present and if not return -ENOSYS indicating
this is not supported.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
This commit is contained in:
Tim Harvey 2021-04-16 13:25:09 -07:00 committed by Ramon Fried
parent 3e1848778c
commit 7001863596
2 changed files with 5 additions and 0 deletions
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4
drivers/net/e1000.c
View File

@ -5673,6 +5673,10 @@ static int e1000_write_hwaddr(struct eth_device *dev)
DEBUGOUT("%s: mac=%pM\n", __func__, mac);
if ((hw->eeprom.type == e1000_eeprom_invm) &&
!(E1000_READ_REG(hw, EECD) & E1000_EECD_FLASH_DETECTED_I210))
return -ENOSYS;
memset(current_mac, 0, 6);
/* Read from EEPROM, not from registers, to make sure

1
drivers/net/e1000.h
View File

@ -1245,6 +1245,7 @@ struct e1000_hw {
#define E1000_EECD_FLUPD 0x00080000 /* Update FLASH */
#define E1000_EECD_FLUPD_I210 0x00800000 /* Update FLASH */
#define E1000_EECD_FLUDONE_I210 0x04000000 /* Update FLASH done*/
#define E1000_EECD_FLASH_DETECTED_I210 0x00080000 /* FLASH detected */
#define E1000_FLUDONE_ATTEMPTS 20000
#define E1000_EECD_AUPDEN 0x00100000 /* Enable Autonomous FLASH update */
#define E1000_EECD_SHADV 0x00200000 /* Shadow RAM Data Valid */