From 6bcb00f6183d1eb5d9f8548fe823be7e6d95b912 Mon Sep 17 00:00:00 2001 From: Sara Sharon Date: Sun, 7 Jun 2015 10:36:23 +0300 Subject: [PATCH] iwlwifi: mvm: remove IWL_UCODE_TLV_API_BASIC_DWELL All the supported firmwares support this API. This includes removing dwell per band, as band is no longer a factor in calculating the dwell. Only basic dwell is used and FW will calculate the actual dwell time. Signed-off-by: Sara Sharon Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/iwl-fw-file.h | 4 - drivers/net/wireless/iwlwifi/mvm/scan.c | 86 +++++----------------- 2 files changed, 20 insertions(+), 70 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h index a9b5ae4ebec0..1c6f7b9588c4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h +++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h @@ -247,9 +247,6 @@ typedef unsigned int __bitwise__ iwl_ucode_tlv_api_t; * @IWL_UCODE_TLV_API_WIFI_MCC_UPDATE: ucode supports MCC updates with source. * IWL_UCODE_TLV_API_HDC_PHASE_0: ucode supports finer configuration of LTR * @IWL_UCODE_TLV_API_TX_POWER_DEV: new API for tx power. - * @IWL_UCODE_TLV_API_BASIC_DWELL: use only basic dwell time in scan command, - * regardless of the band or the number of the probes. FW will calculate - * the actual dwell time. * @IWL_UCODE_TLV_API_SCD_CFG: This firmware can configure the scheduler * through the dedicated host command. * @IWL_UCODE_TLV_API_SINGLE_SCAN_EBS: EBS is supported for single scans too. @@ -266,7 +263,6 @@ enum iwl_ucode_tlv_api { IWL_UCODE_TLV_API_WIFI_MCC_UPDATE = (__force iwl_ucode_tlv_api_t)9, IWL_UCODE_TLV_API_HDC_PHASE_0 = (__force iwl_ucode_tlv_api_t)10, IWL_UCODE_TLV_API_TX_POWER_DEV = (__force iwl_ucode_tlv_api_t)11, - IWL_UCODE_TLV_API_BASIC_DWELL = (__force iwl_ucode_tlv_api_t)13, IWL_UCODE_TLV_API_SCD_CFG = (__force iwl_ucode_tlv_api_t)15, IWL_UCODE_TLV_API_SINGLE_SCAN_EBS = (__force iwl_ucode_tlv_api_t)16, IWL_UCODE_TLV_API_ASYNC_DTM = (__force iwl_ucode_tlv_api_t)17, diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c index 9c70118841d7..b891fa54fa4a 100644 --- a/drivers/net/wireless/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/iwlwifi/mvm/scan.c @@ -90,11 +90,9 @@ struct iwl_mvm_scan_params { int n_match_sets; struct iwl_scan_probe_req preq; struct cfg80211_match_set *match_sets; - struct _dwell { - u16 passive; - u16 active; - u16 fragmented; - } dwell[IEEE80211_NUM_BANDS]; + u16 passive_dwell; + u16 active_dwell; + u16 fragmented_dwell; struct { u8 iterations; u8 full_scan_mul; /* not used for UMAC */ @@ -147,34 +145,6 @@ iwl_mvm_scan_rate_n_flags(struct iwl_mvm *mvm, enum ieee80211_band band, return cpu_to_le32(IWL_RATE_6M_PLCP | tx_ant); } -/* - * If req->n_ssids > 0, it means we should do an active scan. - * In case of active scan w/o directed scan, we receive a zero-length SSID - * just to notify that this scan is active and not passive. - * In order to notify the FW of the number of SSIDs we wish to scan (including - * the zero-length one), we need to set the corresponding bits in chan->type, - * one for each SSID, and set the active bit (first). If the first SSID is - * already included in the probe template, so we need to set only - * req->n_ssids - 1 bits in addition to the first bit. - */ -static u16 iwl_mvm_get_active_dwell(struct iwl_mvm *mvm, - enum ieee80211_band band, int n_ssids) -{ - if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BASIC_DWELL)) - return 10; - if (band == IEEE80211_BAND_2GHZ) - return 20 + 3 * (n_ssids + 1); - return 10 + 2 * (n_ssids + 1); -} - -static u16 iwl_mvm_get_passive_dwell(struct iwl_mvm *mvm, - enum ieee80211_band band) -{ - if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BASIC_DWELL)) - return 110; - return band == IEEE80211_BAND_2GHZ ? 100 + 20 : 100 + 10; -} - static void iwl_mvm_scan_condition_iterator(void *data, u8 *mac, struct ieee80211_vif *vif) { @@ -191,7 +161,6 @@ static void iwl_mvm_scan_calc_dwell(struct iwl_mvm *mvm, struct iwl_mvm_scan_params *params) { int global_cnt = 0; - enum ieee80211_band band; u8 frag_passive_dwell = 0; ieee80211_iterate_active_interfaces_atomic(mvm->hw, @@ -227,14 +196,10 @@ static void iwl_mvm_scan_calc_dwell(struct iwl_mvm *mvm, /* * P2P device scan should not be fragmented to avoid negative * impact on P2P device discovery. Configure max_out_time to be - * equal to dwell time on passive channel. Take a longest - * possible value, one that corresponds to 2GHz band + * equal to dwell time on passive channel. */ if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { - u32 passive_dwell = - iwl_mvm_get_passive_dwell(mvm, - IEEE80211_BAND_2GHZ); - params->max_out_time = passive_dwell; + params->max_out_time = 120; } else { params->passive_fragmented = true; } @@ -246,30 +211,21 @@ static void iwl_mvm_scan_calc_dwell(struct iwl_mvm *mvm, not_bound: - for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) { - if (params->passive_fragmented) - params->dwell[band].fragmented = frag_passive_dwell; + if (params->passive_fragmented) + params->fragmented_dwell = frag_passive_dwell; + + /* + * use only basic dwell time in scan command, regardless of the band or + * the number of the probes. FW will calculate the actual dwell time. + */ + params->passive_dwell = 110; + params->active_dwell = 10; - params->dwell[band].passive = iwl_mvm_get_passive_dwell(mvm, - band); - params->dwell[band].active = - iwl_mvm_get_active_dwell(mvm, band, params->n_ssids); - } IWL_DEBUG_SCAN(mvm, "scan parameters: max_out_time %d, suspend_time %d, passive_fragmented %d\n", params->max_out_time, params->suspend_time, params->passive_fragmented); - IWL_DEBUG_SCAN(mvm, - "dwell[IEEE80211_BAND_2GHZ]: passive %d, active %d, fragmented %d\n", - params->dwell[IEEE80211_BAND_2GHZ].passive, - params->dwell[IEEE80211_BAND_2GHZ].active, - params->dwell[IEEE80211_BAND_2GHZ].fragmented); - IWL_DEBUG_SCAN(mvm, - "dwell[IEEE80211_BAND_5GHZ]: passive %d, active %d, fragmented %d\n", - params->dwell[IEEE80211_BAND_5GHZ].passive, - params->dwell[IEEE80211_BAND_5GHZ].active, - params->dwell[IEEE80211_BAND_5GHZ].fragmented); } static inline bool iwl_mvm_rrm_scan_needed(struct iwl_mvm *mvm) @@ -743,11 +699,10 @@ static void iwl_mvm_scan_lmac_dwell(struct iwl_mvm *mvm, struct iwl_scan_req_lmac *cmd, struct iwl_mvm_scan_params *params) { - cmd->active_dwell = params->dwell[IEEE80211_BAND_2GHZ].active; - cmd->passive_dwell = params->dwell[IEEE80211_BAND_2GHZ].passive; + cmd->active_dwell = params->active_dwell; + cmd->passive_dwell = params->passive_dwell; if (params->passive_fragmented) - cmd->fragmented_dwell = - params->dwell[IEEE80211_BAND_2GHZ].fragmented; + cmd->fragmented_dwell = params->fragmented_dwell; cmd->max_out_time = cpu_to_le32(params->max_out_time); cmd->suspend_time = cpu_to_le32(params->suspend_time); cmd->scan_prio = iwl_mvm_scan_priority(mvm, IWL_SCAN_PRIORITY_EXT_6); @@ -1005,11 +960,10 @@ static void iwl_mvm_scan_umac_dwell(struct iwl_mvm *mvm, struct iwl_scan_req_umac *cmd, struct iwl_mvm_scan_params *params) { - cmd->active_dwell = params->dwell[IEEE80211_BAND_2GHZ].active; - cmd->passive_dwell = params->dwell[IEEE80211_BAND_2GHZ].passive; + cmd->active_dwell = params->active_dwell; + cmd->passive_dwell = params->passive_dwell; if (params->passive_fragmented) - cmd->fragmented_dwell = - params->dwell[IEEE80211_BAND_2GHZ].fragmented; + cmd->fragmented_dwell = params->fragmented_dwell; cmd->max_out_time = cpu_to_le32(params->max_out_time); cmd->suspend_time = cpu_to_le32(params->suspend_time); cmd->scan_priority = -- 2.20.1