diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c')
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c index 6f4d241d47e9..e0e80906fdc6 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c @@ -195,14 +195,20 @@ rs_fw_vht_set_enabled_rates(const struct ieee80211_sta *sta, { u16 supp; int i, highest_mcs; - u8 nss = sta->rx_nss; + u8 max_nss = sta->rx_nss; + struct ieee80211_vht_cap ieee_vht_cap = { + .vht_cap_info = cpu_to_le32(vht_cap->cap), + .supp_mcs = vht_cap->vht_mcs, + }; /* the station support only a single receive chain */ if (sta->smps_mode == IEEE80211_SMPS_STATIC) - nss = 1; + max_nss = 1; - for (i = 0; i < nss && i < IWL_TLC_NSS_MAX; i++) { - highest_mcs = rs_fw_vht_highest_rx_mcs_index(vht_cap, i + 1); + for (i = 0; i < max_nss && i < IWL_TLC_NSS_MAX; i++) { + int nss = i + 1; + + highest_mcs = rs_fw_vht_highest_rx_mcs_index(vht_cap, nss); if (!highest_mcs) continue; @@ -211,7 +217,15 @@ rs_fw_vht_set_enabled_rates(const struct ieee80211_sta *sta, supp &= ~BIT(IWL_TLC_MNG_HT_RATE_MCS9); cmd->ht_rates[i][IWL_TLC_HT_BW_NONE_160] = cpu_to_le16(supp); - if (sta->bandwidth == IEEE80211_STA_RX_BW_160) + /* + * Check if VHT extended NSS indicates that the bandwidth/NSS + * configuration is supported - only for MCS 0 since we already + * decoded the MCS bits anyway ourselves. + */ + if (sta->bandwidth == IEEE80211_STA_RX_BW_160 && + ieee80211_get_vht_max_nss(&ieee_vht_cap, + IEEE80211_VHT_CHANWIDTH_160MHZ, + 0, true, nss) >= nss) cmd->ht_rates[i][IWL_TLC_HT_BW_160] = cmd->ht_rates[i][IWL_TLC_HT_BW_NONE_160]; } @@ -454,6 +468,12 @@ void rs_fw_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, .amsdu = iwl_mvm_is_csum_supported(mvm), }; int ret; + u16 cmd_size = sizeof(cfg_cmd); + + /* In old versions of the API the struct is 4 bytes smaller */ + if (iwl_fw_lookup_cmd_ver(mvm->fw, DATA_PATH_GROUP, + TLC_MNG_CONFIG_CMD, 0) < 3) + cmd_size -= 4; memset(lq_sta, 0, offsetof(typeof(*lq_sta), pers)); @@ -468,7 +488,7 @@ void rs_fw_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, */ sta->max_amsdu_len = max_amsdu_len; - ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, CMD_ASYNC, sizeof(cfg_cmd), + ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, CMD_ASYNC, cmd_size, &cfg_cmd); if (ret) IWL_ERR(mvm, "Failed to send rate scale config (%d)\n", ret); |