From: Johannes Berg <johannes.berg@xxxxxxxxx>
[ Upstream commit d34d11aea2d5d71a66f2f90507c3f7202b964175 ]
Since Gl A-step devices use the old checksum hardware,
we shouldn't use the Bz code to check for A-MSDU
combining ability; fix that.
Fixes: ec18e7d4d20d ("wifi: iwlwifi: mvm: use old checksum for Bz A-step")
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Gregory Greenman <gregory.greenman@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230413102635.8c445b943fee.Ibf772102ca712f59e2ee0cdd4c344011fcf445aa@changeid
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 1d46a2b345eb3..a29e685aac4ff 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -5518,7 +5518,10 @@ static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw,
{
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
- if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ)
+ if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_BZ ||
+ (mvm->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_BZ &&
+ !(CSR_HW_REV_TYPE(mvm->trans->hw_rev) == IWL_CFG_MAC_TYPE_GL &&
+ mvm->trans->hw_rev_step == SILICON_A_STEP)))
return iwl_mvm_tx_csum_bz(mvm, head, true) ==
iwl_mvm_tx_csum_bz(mvm, skb, true);
--
2.39.2
