On Thu, Apr 22, 2021 at 5:11 PM Ramon Fried rfried.dev@gmail.com wrote:
On Fri, Apr 16, 2021 at 11:25 PM Tim Harvey tharvey@gateworks.com wrote:
commit f1bcad22dd19 ("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
drivers/net/e1000.c | 4 ++++ drivers/net/e1000.h | 1 + 2 files changed, 5 insertions(+)
diff --git a/drivers/net/e1000.c b/drivers/net/e1000.c index 694114eca7..60613b7df0 100644 --- a/drivers/net/e1000.c +++ b/drivers/net/e1000.c @@ -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 surediff --git a/drivers/net/e1000.h b/drivers/net/e1000.h index 072851ba31..082154a997 100644 --- a/drivers/net/e1000.h +++ b/drivers/net/e1000.h @@ -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 */
2.17.1
Reviewed-by: Ramon Fried rfried.dev@gmail.com
Joe / Ramon,
Can one of you pick this up? If I need to re-submit with Ramon's 'reviewed by' please let me know.
Best regards,
Tim