diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h index f0548b8a64b0..5234a0bf11e4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h @@ -94,6 +94,7 @@ struct iwl_nvm_data { u32 nvm_version; s8 max_tx_pwr_half_dbm; + bool lar_enabled; struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; struct ieee80211_channel channels[]; }; diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c index 83ba307f0618..88ee84cbd7d5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c +++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c @@ -105,6 +105,8 @@ enum family_8000_nvm_offsets { /* NVM REGULATORY -Section offset (in words) definitions */ NVM_CHANNELS_FAMILY_8000 = 0, + NVM_LAR_OFFSET_FAMILY_8000 = 0x4C7, + NVM_LAR_ENABLED_FAMILY_8000 = 0x7, /* NVM calibration section offset (in words) definitions */ NVM_CALIB_SECTION_FAMILY_8000 = 0x2B8, @@ -597,11 +599,12 @@ iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg, const __le16 *nvm_hw, const __le16 *nvm_sw, const __le16 *nvm_calib, const __le16 *regulatory, const __le16 *mac_override, u8 tx_chains, u8 rx_chains, - bool lar_supported) + bool lar_fw_supported) { struct iwl_nvm_data *data; u32 sku; u32 radio_cfg; + u16 lar_config; if (cfg->device_family != IWL_DEVICE_FAMILY_8000) data = kzalloc(sizeof(*data) + @@ -653,15 +656,21 @@ iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg, iwl_init_sbands(dev, cfg, data, nvm_sw, sku & NVM_SKU_CAP_11AC_ENABLE, tx_chains, - rx_chains, lar_supported); + rx_chains, lar_fw_supported); } else { + lar_config = le16_to_cpup(regulatory + + NVM_LAR_OFFSET_FAMILY_8000); + data->lar_enabled = !!(lar_config & + NVM_LAR_ENABLED_FAMILY_8000); + /* MAC address in family 8000 */ iwl_set_hw_address_family_8000(dev, cfg, data, mac_override, nvm_hw); iwl_init_sbands(dev, cfg, data, regulatory, sku & NVM_SKU_CAP_11AC_ENABLE, tx_chains, - rx_chains, lar_supported); + rx_chains, lar_fw_supported && + data->lar_enabled); } data->calib_version = 255; diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.h b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.h index 1b3990d15dc1..c950c142ba0f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.h +++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.h @@ -78,7 +78,7 @@ iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg, const __le16 *nvm_hw, const __le16 *nvm_sw, const __le16 *nvm_calib, const __le16 *regulatory, const __le16 *mac_override, u8 tx_chains, u8 rx_chains, - bool lar_supported); + bool lar_fw_supported); /** * iwl_parse_mcc_info - parse MCC (mobile country code) info coming from FW diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h index df5a2286b409..a196c7859086 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h @@ -914,7 +914,17 @@ static inline bool iwl_mvm_is_d0i3_supported(struct iwl_mvm *mvm) static inline bool iwl_mvm_is_lar_supported(struct iwl_mvm *mvm) { - return mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_LAR_SUPPORT; + bool nvm_lar = mvm->nvm_data->lar_enabled; + bool tlv_lar = mvm->fw->ucode_capa.capa[0] & + IWL_UCODE_TLV_CAPA_LAR_SUPPORT; + /* + * Enable LAR only if it is supported by the FW (TLV) && + * enabled in the NVM + */ + if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000) + return nvm_lar && tlv_lar; + else + return tlv_lar; } static inline bool iwl_mvm_is_scd_cfg_supported(struct iwl_mvm *mvm) diff --git a/drivers/net/wireless/iwlwifi/mvm/nvm.c b/drivers/net/wireless/iwlwifi/mvm/nvm.c index b88b4cd07a22..1c699c9aaad3 100644 --- a/drivers/net/wireless/iwlwifi/mvm/nvm.c +++ b/drivers/net/wireless/iwlwifi/mvm/nvm.c @@ -303,7 +303,8 @@ iwl_parse_nvm_sections(struct iwl_mvm *mvm) regulatory, mac_override, mvm->fw->valid_tx_ant, mvm->fw->valid_rx_ant, - iwl_mvm_is_lar_supported(mvm)); + mvm->fw->ucode_capa.capa[0] & + IWL_UCODE_TLV_CAPA_LAR_SUPPORT); } #define MAX_NVM_FILE_LEN 16384 @@ -659,6 +660,20 @@ iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2) int iwl_mvm_init_mcc(struct iwl_mvm *mvm) { + bool tlv_lar; + bool nvm_lar; + + if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000) { + tlv_lar = mvm->fw->ucode_capa.capa[0] & + IWL_UCODE_TLV_CAPA_LAR_SUPPORT; + nvm_lar = mvm->nvm_data->lar_enabled; + if (tlv_lar != nvm_lar) + IWL_INFO(mvm, + "Conflict between TLV & NVM regarding enabling LAR (TLV = %s NVM =%s)\n", + tlv_lar ? "enabled" : "disabled", + nvm_lar ? "enabled" : "disabled"); + } + if (!iwl_mvm_is_lar_supported(mvm)) return 0;