Return-path: Received: from paleale.coelho.fi ([176.9.41.70]:36990 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753065AbeC1OZX (ORCPT ); Wed, 28 Mar 2018 10:25:23 -0400 From: Luca Coelho To: kvalo@codeaurora.org Cc: linux-wireless@vger.kernel.org, "Zamir, Roee" , Beni Lev , Luca Coelho Date: Wed, 28 Mar 2018 17:25:17 +0300 Message-Id: <20180328142517.8940-1-luca@coelho.fi> (sfid-20180328_162533_572238_CED946F9) In-Reply-To: <20180328141157.5427-1-luca@coelho.fi> References: <20180328141157.5427-1-luca@coelho.fi> Subject: [PATCH 06/14] iwlwifi: mvm: add adaptive dwell support Sender: linux-wireless-owner@vger.kernel.org List-ID: From: "Zamir, Roee" Update the scan command API with support for adaptive dwell and add a debugfs entry to configure max budget parameter. Signed-off-by: Roee Zamir Signed-off-by: Beni Lev Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/mvm/constants.h | 2 + drivers/net/wireless/intel/iwlwifi/mvm/scan.c | 98 ++++++++++++++-------- 2 files changed, 67 insertions(+), 33 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/constants.h b/drivers/net/wireless/intel/iwlwifi/mvm/constants.h index 976640fed334..96b52a275ee3 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/constants.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/constants.h @@ -110,6 +110,8 @@ #define IWL_MVM_SW_TX_CSUM_OFFLOAD 0 #define IWL_MVM_HW_CSUM_DISABLE 0 #define IWL_MVM_PARSE_NVM 0 +#define IWL_MVM_ADWELL_ENABLE 1 +#define IWL_MVM_ADWELL_MAX_BUDGET 0 #define IWL_MVM_RS_NUM_TRY_BEFORE_ANT_TOGGLE 1 #define IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE 2 #define IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE_TW 1 diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c index 356b16f40e78..f910098e9531 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c @@ -86,6 +86,15 @@ enum iwl_mvm_traffic_load { #define IWL_SCAN_DWELL_FRAGMENTED 44 #define IWL_SCAN_DWELL_EXTENDED 90 +/* adaptive dwell max budget time [TU] for full scan */ +#define IWL_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN 300 +/* adaptive dwell max budget time [TU] for directed scan */ +#define IWL_SCAN_ADWELL_MAX_BUDGET_DIRECTED_SCAN 100 +/* adaptive dwell default APs number */ +#define IWL_SCAN_ADWELL_DEFAULT_N_APS 2 +/* adaptive dwell default APs number in social channels (1, 6, 11) */ +#define IWL_SCAN_ADWELL_DEFAULT_N_APS_SOCIAL 10 + struct iwl_mvm_scan_timing_params { u32 suspend_time; u32 max_out_time; @@ -1115,11 +1124,6 @@ static void iwl_mvm_scan_umac_dwell(struct iwl_mvm *mvm, { struct iwl_mvm_scan_timing_params *timing = &scan_timing[params->type]; - if (iwl_mvm_is_regular_scan(params)) - cmd->ooc_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6); - else - cmd->ooc_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_2); - if (iwl_mvm_is_adaptive_dwell_supported(mvm)) { if (params->measurement_dwell) { cmd->v7.active_dwell = params->measurement_dwell; @@ -1129,6 +1133,21 @@ static void iwl_mvm_scan_umac_dwell(struct iwl_mvm *mvm, cmd->v7.passive_dwell = IWL_SCAN_DWELL_PASSIVE; } cmd->v7.fragmented_dwell = IWL_SCAN_DWELL_FRAGMENTED; + cmd->v7.adwell_default_n_aps_social = + IWL_SCAN_ADWELL_DEFAULT_N_APS_SOCIAL; + cmd->v7.adwell_default_n_aps = + IWL_SCAN_ADWELL_DEFAULT_N_APS; + + /* if custom max budget was configured with debugfs */ + if (IWL_MVM_ADWELL_MAX_BUDGET) + cmd->v7.adwell_max_budget = + cpu_to_le16(IWL_MVM_ADWELL_MAX_BUDGET); + else if (params->ssids && params->ssids[0].ssid_len) + cmd->v7.adwell_max_budget = + cpu_to_le16(IWL_SCAN_ADWELL_MAX_BUDGET_DIRECTED_SCAN); + else + cmd->v7.adwell_max_budget = + cpu_to_le16(IWL_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN); cmd->v7.scan_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6); cmd->v7.max_out_time[SCAN_LB_LMAC_IDX] = @@ -1136,43 +1155,47 @@ static void iwl_mvm_scan_umac_dwell(struct iwl_mvm *mvm, cmd->v7.suspend_time[SCAN_LB_LMAC_IDX] = cpu_to_le32(timing->suspend_time); if (iwl_mvm_is_cdb_supported(mvm)) { - cmd->v7.max_out_time[SCAN_HB_LMAC_IDX] = + cmd->v6.max_out_time[SCAN_HB_LMAC_IDX] = cpu_to_le32(timing->max_out_time); - cmd->v7.suspend_time[SCAN_HB_LMAC_IDX] = + cmd->v6.suspend_time[SCAN_HB_LMAC_IDX] = cpu_to_le32(timing->suspend_time); } - - return; - } - - if (params->measurement_dwell) { - cmd->v1.active_dwell = params->measurement_dwell; - cmd->v1.passive_dwell = params->measurement_dwell; - cmd->v1.extended_dwell = params->measurement_dwell; } else { - cmd->v1.active_dwell = IWL_SCAN_DWELL_ACTIVE; - cmd->v1.passive_dwell = IWL_SCAN_DWELL_PASSIVE; - cmd->v1.extended_dwell = IWL_SCAN_DWELL_EXTENDED; - } - cmd->v1.fragmented_dwell = IWL_SCAN_DWELL_FRAGMENTED; - - if (iwl_mvm_has_new_tx_api(mvm)) { - cmd->v6.scan_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6); - cmd->v6.max_out_time[SCAN_LB_LMAC_IDX] = - cpu_to_le32(timing->max_out_time); - cmd->v6.suspend_time[SCAN_LB_LMAC_IDX] = - cpu_to_le32(timing->suspend_time); + if (params->measurement_dwell) { + cmd->v1.active_dwell = params->measurement_dwell; + cmd->v1.passive_dwell = params->measurement_dwell; + cmd->v1.extended_dwell = params->measurement_dwell; + } else { + cmd->v1.active_dwell = IWL_SCAN_DWELL_ACTIVE; + cmd->v1.passive_dwell = IWL_SCAN_DWELL_PASSIVE; + cmd->v1.extended_dwell = IWL_SCAN_DWELL_EXTENDED; + } + cmd->v1.fragmented_dwell = IWL_SCAN_DWELL_FRAGMENTED; if (iwl_mvm_is_cdb_supported(mvm)) { + struct iwl_mvm_scan_timing_params *hb_timing = + &scan_timing[params->type]; + cmd->v6.max_out_time[SCAN_HB_LMAC_IDX] = - cpu_to_le32(timing->max_out_time); + cpu_to_le32(hb_timing->max_out_time); cmd->v6.suspend_time[SCAN_HB_LMAC_IDX] = + cpu_to_le32(hb_timing->suspend_time); + } + + if (iwl_mvm_has_new_tx_api(mvm)) { + cmd->v6.scan_priority = + cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6); + cmd->v6.max_out_time[SCAN_LB_LMAC_IDX] = + cpu_to_le32(timing->max_out_time); + cmd->v6.suspend_time[SCAN_LB_LMAC_IDX] = + cpu_to_le32(timing->suspend_time); + } else { + cmd->v1.scan_priority = + cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6); + cmd->v1.max_out_time = + cpu_to_le32(timing->max_out_time); + cmd->v1.suspend_time = cpu_to_le32(timing->suspend_time); } - } else { - cmd->v1.max_out_time = cpu_to_le32(timing->max_out_time); - cmd->v1.suspend_time = cpu_to_le32(timing->suspend_time); - cmd->v1.scan_priority = - cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6); } } @@ -1234,6 +1257,15 @@ static u16 iwl_mvm_scan_umac_flags(struct iwl_mvm *mvm, if (mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_ENABLED) flags |= IWL_UMAC_SCAN_GEN_FLAGS_ITER_COMPLETE; + if (iwl_mvm_is_adaptive_dwell_supported(mvm) && IWL_MVM_ADWELL_ENABLE && + vif->type != NL80211_IFTYPE_P2P_DEVICE) + flags |= IWL_UMAC_SCAN_GEN_FLAGS_ADAPTIVE_DWELL; + + /* + * Extended dwell is relevant only for low band to start with, as it is + * being used for social channles only (1, 6, 11), so we can check + * only scan type on low band also for CDB. + */ if (iwl_mvm_is_regular_scan(params) && vif->type != NL80211_IFTYPE_P2P_DEVICE && params->type != IWL_SCAN_TYPE_FRAGMENTED) -- 2.16.2