From 8423cdc31eb074e95c0722c395b6742a6854cc11 Mon Sep 17 00:00:00 2001 From: Luciano Coelho Date: Fri, 17 Apr 2015 14:49:58 +0300 Subject: [PATCH] iwlwifi: mvm: combine UMAC scans into one With just a few differences left in the UMAC scan functions now, we can merge them into one, taking care of the small difference according to the total number of iterations required. Signed-off-by: Luciano Coelho Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/scan.c | 86 +++++-------------------- 1 file changed, 17 insertions(+), 69 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c index 1abbc6630eb8..cecc5a311647 100644 --- a/drivers/net/wireless/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/iwlwifi/mvm/scan.c @@ -1173,6 +1173,8 @@ static int iwl_mvm_scan_umac(struct iwl_mvm *mvm, struct ieee80211_vif *vif, mvm->fw->ucode_capa.n_scan_channels; u32 uid, flags; u32 ssid_bitmap = 0; + int n_iterations = params->schedule[0].iterations + + params->schedule[1].iterations; int uid_idx; lockdep_assert_held(&mvm->mutex); @@ -1183,77 +1185,22 @@ static int iwl_mvm_scan_umac(struct iwl_mvm *mvm, struct ieee80211_vif *vif, iwl_mvm_build_generic_umac_scan_cmd(mvm, cmd, params); - uid = iwl_generate_scan_uid(mvm, IWL_UMAC_SCAN_UID_REG_SCAN); - mvm->scan_uid[uid_idx] = uid; - cmd->uid = cpu_to_le32(uid); - - cmd->ooc_priority = cpu_to_le32(IWL_SCAN_PRIORITY_HIGH); - flags = iwl_mvm_scan_umac_common_flags(mvm, params->n_ssids, params->ssids, params->passive_fragmented); - if (params->pass_all) - flags |= IWL_UMAC_SCAN_GEN_FLAGS_PASS_ALL; - else - flags |= IWL_UMAC_SCAN_GEN_FLAGS_MATCH; - - cmd->general_flags = cpu_to_le32(flags); - - if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_SINGLE_SCAN_EBS && - mvm->last_ebs_successful) - cmd->channel_flags = IWL_SCAN_CHANNEL_FLAG_EBS | - IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE | - IWL_SCAN_CHANNEL_FLAG_CACHE_ADD; - - cmd->n_channels = params->n_channels; - - iwl_scan_build_ssids(params, sec_part->direct_scan, &ssid_bitmap); - - iwl_mvm_umac_scan_cfg_channels(mvm, params->channels, - params->n_channels, ssid_bitmap, cmd); - - sec_part->schedule[0].iter_count = params->schedule[0].iterations; - sec_part->delay = cpu_to_le16(params->delay); - sec_part->preq = params->preq; - - return 0; -} - -static int iwl_mvm_sched_scan_umac(struct iwl_mvm *mvm, - struct ieee80211_vif *vif, - struct iwl_mvm_scan_params *params) -{ - struct iwl_scan_req_umac *cmd = mvm->scan_cmd; - struct iwl_scan_req_umac_tail *sec_part = (void *)&cmd->data + - sizeof(struct iwl_scan_channel_cfg_umac) * - mvm->fw->ucode_capa.n_scan_channels; - u32 uid, flags; - u32 ssid_bitmap = 0; - int uid_idx; - - lockdep_assert_held(&mvm->mutex); - - uid_idx = iwl_mvm_find_free_scan_uid(mvm); - if (uid_idx >= mvm->max_scans) - return -EBUSY; - - iwl_mvm_build_generic_umac_scan_cmd(mvm, cmd, params); - - cmd->flags = cpu_to_le32(IWL_UMAC_SCAN_FLAG_PREEMPTIVE); + if (n_iterations == 1) { + cmd->ooc_priority = cpu_to_le32(IWL_SCAN_PRIORITY_HIGH); + uid = iwl_generate_scan_uid(mvm, IWL_UMAC_SCAN_UID_REG_SCAN); + } else { + cmd->ooc_priority = cpu_to_le32(IWL_SCAN_PRIORITY_LOW); + uid = iwl_generate_scan_uid(mvm, IWL_UMAC_SCAN_UID_SCHED_SCAN); + flags |= IWL_UMAC_SCAN_GEN_FLAGS_PERIODIC; + } - uid = iwl_generate_scan_uid(mvm, IWL_UMAC_SCAN_UID_SCHED_SCAN); mvm->scan_uid[uid_idx] = uid; cmd->uid = cpu_to_le32(uid); - cmd->ooc_priority = cpu_to_le32(IWL_SCAN_PRIORITY_LOW); - - flags = iwl_mvm_scan_umac_common_flags(mvm, params->n_ssids, - params->ssids, - params->passive_fragmented); - - flags |= IWL_UMAC_SCAN_GEN_FLAGS_PERIODIC; - if (params->pass_all) flags |= IWL_UMAC_SCAN_GEN_FLAGS_PASS_ALL; else @@ -1261,8 +1208,7 @@ static int iwl_mvm_sched_scan_umac(struct iwl_mvm *mvm, cmd->general_flags = cpu_to_le32(flags); - if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_EBS_SUPPORT && - mvm->last_ebs_successful) + if (iwl_mvm_scan_use_ebs(mvm, n_iterations)) cmd->channel_flags = IWL_SCAN_CHANNEL_FLAG_EBS | IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE | IWL_SCAN_CHANNEL_FLAG_CACHE_ADD; @@ -1274,11 +1220,13 @@ static int iwl_mvm_sched_scan_umac(struct iwl_mvm *mvm, iwl_mvm_umac_scan_cfg_channels(mvm, params->channels, params->n_channels, ssid_bitmap, cmd); + /* With UMAC we can have only one schedule, so use the sum of + * the iterations (with a a maximum of 255). + */ + sec_part->schedule[0].iter_count = + (n_iterations > 255) ? 255 : n_iterations; sec_part->schedule[0].interval = cpu_to_le16(params->interval); - /* With UMAC we use only one schedule, so take the final one only */ - sec_part->schedule[0].iter_count = params->schedule[1].iterations; - sec_part->delay = cpu_to_le16(params->delay); sec_part->preq = params->preq; @@ -1496,7 +1444,7 @@ int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm, if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) { hcmd.id = SCAN_REQ_UMAC; - ret = iwl_mvm_sched_scan_umac(mvm, vif, ¶ms); + ret = iwl_mvm_scan_umac(mvm, vif, ¶ms); } else { hcmd.id = SCAN_OFFLOAD_REQUEST_CMD; ret = iwl_mvm_scan_lmac(mvm, vif, ¶ms); -- 2.34.1