| From cb377dfda1755b3bc01436755d866c8e5336a762 Mon Sep 17 00:00:00 2001 |
| From: Mordechay Goodstein <mordechay.goodstein@intel.com> |
| Date: Fri, 6 Mar 2020 15:16:22 +0200 |
| Subject: iwlwifi: consider HE capability when setting LDPC |
| |
| From: Mordechay Goodstein <mordechay.goodstein@intel.com> |
| |
| commit cb377dfda1755b3bc01436755d866c8e5336a762 upstream. |
| |
| 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> |
| Link: https://lore.kernel.org/r/iwlwifi.20200306151128.492d167c1a25.I1ad1353dbbf6c99ae57814be750f41a1c9f7f4ac@changeid |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c | 6 +++++- |
| 1 file changed, 5 insertions(+), 1 deletion(-) |
| |
| --- 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 |
| (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)) |
