diff options
| author | Jacek Kowalski <jacek@jacekk.info> | 2025-06-30 11:33:39 +0300 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2025-07-21 20:31:09 +0300 |
| commit | 536fd741c7ac907d63166cdae1081b1febfab613 (patch) | |
| tree | 78c85bd19aaaba150abc714ed80dd6ca540a6b5c | |
| parent | 4ff12d82dac119b4b99b5a78b5af3bf2474c0a36 (diff) | |
| download | linux-536fd741c7ac907d63166cdae1081b1febfab613.tar.xz | |
e1000e: disregard NVM checksum on tgp when valid checksum bit is not set
As described by Vitaly Lifshits:
> Starting from Tiger Lake, LAN NVM is locked for writes by SW, so the
> driver cannot perform checksum validation and correction. This means
> that all NVM images must leave the factory with correct checksum and
> checksum valid bit set. Since Tiger Lake devices were the first to have
> this lock, some systems in the field did not meet this requirement.
> Therefore, for these transitional devices we skip checksum update and
> verification, if the valid bit is not set.
Signed-off-by: Jacek Kowalski <jacek@jacekk.info>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Fixes: 4051f68318ca9 ("e1000e: Do not take care about recovery NVM checksum")
Cc: stable@vger.kernel.org
Tested-by: Mor Bar-Gabay <morx.bar.gabay@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/ich8lan.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c index 364378133526..df4e7d781cb1 100644 --- a/drivers/net/ethernet/intel/e1000e/ich8lan.c +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c @@ -4274,6 +4274,8 @@ static s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw) ret_val = e1000e_update_nvm_checksum(hw); if (ret_val) return ret_val; + } else if (hw->mac.type == e1000_pch_tgp) { + return 0; } } |