[v5.6,2/7] iwlwifi: consider HE capability when setting LDPC
diff mbox series

Message ID iwlwifi.20200306151128.492d167c1a25.I1ad1353dbbf6c99ae57814be750f41a1c9f7f4ac@changeid
State Accepted
Delegated to: Luca Coelho
Headers show
Series
  • iwlwifi: fixes intended for 5.6 2020-03-06
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Commit Message

Luca Coelho March 6, 2020, 1:16 p.m. UTC
From: Mordechay Goodstein <mordechay.goodstein@intel.com>

The AP may set the LDPC capability only in HE (IEEE80211_HE_PHY_CAP1),
but we were checking it only in the HT capabilities.

If we don't use this capability when required, the DSP gets the wrong
configuration in HE and doesn't work properly.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Fixes: befebbb30af0 ("iwlwifi: rs: consider LDPC capability in case of HE")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
index e2cf9e015ef8..80ef238a8488 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
@@ -147,7 +147,11 @@  static u16 rs_fw_get_config_flags(struct iwl_mvm *mvm,
 	     (vht_ena && (vht_cap->cap & IEEE80211_VHT_CAP_RXLDPC))))
 		flags |= IWL_TLC_MNG_CFG_FLAGS_LDPC_MSK;
 
-	/* consider our LDPC support in case of HE */
+	/* consider LDPC support in case of HE */
+	if (he_cap->has_he && (he_cap->he_cap_elem.phy_cap_info[1] &
+	    IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD))
+		flags |= IWL_TLC_MNG_CFG_FLAGS_LDPC_MSK;
+
 	if (sband->iftype_data && sband->iftype_data->he_cap.has_he &&
 	    !(sband->iftype_data->he_cap.he_cap_elem.phy_cap_info[1] &
 	     IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD))