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| author |   Sasha Neftin <sasha.neftin@intel.com> | 2021-07-18 07:10:31 +0300 |
|---|---|---|
| committer |   Tony Nguyen <anthony.l.nguyen@intel.com> | 2021-08-20 08:38:01 -0700 |
| commit | 4051f68318ca9f3d3becef3b54e70ad2c146df97 (patch) | |
| tree | b1ee956af3eba5eb3ce0fac9045e18f111b437e6 /drivers/net/ethernet/intel | |
| parent | e1000e: Fix the max snoop/no-snoop latency for 10M (diff) | |
| download | linux-dev-4051f68318ca9f3d3becef3b54e70ad2c146df97.tar.xz linux-dev-4051f68318ca9f3d3becef3b54e70ad2c146df97.zip | |
e1000e: Do not take care about recovery NVM checksum
On new platforms, the NVM is read-only. Attempting to update the NVM
is causing a lockup to occur. Do not attempt to write to the NVM
on platforms where it's not supported.
Emit an error message when the NVM checksum is invalid.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=213667
Fixes: fb776f5d57ee ("e1000e: Add support for Tiger Lake")
Suggested-by: Dima Ruinskiy <dima.ruinskiy@intel.com>
Suggested-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/ich8lan.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c index 2c412bf9232a..a80336c4319b 100644 --- a/drivers/net/ethernet/intel/e1000e/ich8lan.c +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c @@ -4127,13 +4127,17 @@ static s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw) return ret_val; if (!(data & valid_csum_mask)) { - data |= valid_csum_mask; - ret_val = e1000_write_nvm(hw, word, 1, &data); - if (ret_val) - return ret_val; - ret_val = e1000e_update_nvm_checksum(hw); - if (ret_val) - return ret_val; + e_dbg("NVM Checksum Invalid\n"); + + if (hw->mac.type < e1000_pch_cnp) { + data |= valid_csum_mask; + ret_val = e1000_write_nvm(hw, word, 1, &data); + if (ret_val) + return ret_val; + ret_val = e1000e_update_nvm_checksum(hw); + if (ret_val) + return ret_val; + } } return e1000e_validate_nvm_checksum_generic(hw); |