| // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause |
| /* |
| * Copyright (C) 2012-2014, 2018-2023 Intel Corporation |
| * Copyright (C) 2013-2014 Intel Mobile Communications GmbH |
| * Copyright (C) 2015-2017 Intel Deutschland GmbH |
| */ |
| #include <net/mac80211.h> |
| |
| #include "iwl-debug.h" |
| #include "iwl-io.h" |
| #include "iwl-prph.h" |
| #include "iwl-csr.h" |
| #include "mvm.h" |
| #include "fw/api/rs.h" |
| #include "fw/img.h" |
| |
| /* |
| * Will return 0 even if the cmd failed when RFKILL is asserted unless |
| * CMD_WANT_SKB is set in cmd->flags. |
| */ |
| int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd) |
| { |
| int ret; |
| |
| #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) |
| if (WARN_ON(mvm->d3_test_active)) |
| return -EIO; |
| #endif |
| |
| /* |
| * Synchronous commands from this op-mode must hold |
| * the mutex, this ensures we don't try to send two |
| * (or more) synchronous commands at a time. |
| */ |
| if (!(cmd->flags & CMD_ASYNC)) |
| lockdep_assert_held(&mvm->mutex); |
| |
| ret = iwl_trans_send_cmd(mvm->trans, cmd); |
| |
| /* |
| * If the caller wants the SKB, then don't hide any problems, the |
| * caller might access the response buffer which will be NULL if |
| * the command failed. |
| */ |
| if (cmd->flags & CMD_WANT_SKB) |
| return ret; |
| |
| /* |
| * Silently ignore failures if RFKILL is asserted or |
| * we are in suspend\resume process |
| */ |
| if (!ret || ret == -ERFKILL || ret == -EHOSTDOWN) |
| return 0; |
| return ret; |
| } |
| |
| int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u32 id, |
| u32 flags, u16 len, const void *data) |
| { |
| struct iwl_host_cmd cmd = { |
| .id = id, |
| .len = { len, }, |
| .data = { data, }, |
| .flags = flags, |
| }; |
| |
| return iwl_mvm_send_cmd(mvm, &cmd); |
| } |
| |
| /* |
| * We assume that the caller set the status to the success value |
| */ |
| int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd, |
| u32 *status) |
| { |
| struct iwl_rx_packet *pkt; |
| struct iwl_cmd_response *resp; |
| int ret, resp_len; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) |
| if (WARN_ON(mvm->d3_test_active)) |
| return -EIO; |
| #endif |
| |
| /* |
| * Only synchronous commands can wait for status, |
| * we use WANT_SKB so the caller can't. |
| */ |
| if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB), |
| "cmd flags %x", cmd->flags)) |
| return -EINVAL; |
| |
| cmd->flags |= CMD_WANT_SKB; |
| |
| ret = iwl_trans_send_cmd(mvm->trans, cmd); |
| if (ret == -ERFKILL) { |
| /* |
| * The command failed because of RFKILL, don't update |
| * the status, leave it as success and return 0. |
| */ |
| return 0; |
| } else if (ret) { |
| return ret; |
| } |
| |
| pkt = cmd->resp_pkt; |
| |
| resp_len = iwl_rx_packet_payload_len(pkt); |
| if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { |
| ret = -EIO; |
| goto out_free_resp; |
| } |
| |
| resp = (void *)pkt->data; |
| *status = le32_to_cpu(resp->status); |
| out_free_resp: |
| iwl_free_resp(cmd); |
| return ret; |
| } |
| |
| /* |
| * We assume that the caller set the status to the sucess value |
| */ |
| int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u32 id, u16 len, |
| const void *data, u32 *status) |
| { |
| struct iwl_host_cmd cmd = { |
| .id = id, |
| .len = { len, }, |
| .data = { data, }, |
| }; |
| |
| return iwl_mvm_send_cmd_status(mvm, &cmd, status); |
| } |
| |
| int iwl_mvm_legacy_hw_idx_to_mac80211_idx(u32 rate_n_flags, |
| enum nl80211_band band) |
| { |
| int format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; |
| int rate = rate_n_flags & RATE_LEGACY_RATE_MSK; |
| bool is_LB = band == NL80211_BAND_2GHZ; |
| |
| if (format == RATE_MCS_LEGACY_OFDM_MSK) |
| return is_LB ? rate + IWL_FIRST_OFDM_RATE : |
| rate; |
| |
| /* CCK is not allowed in HB */ |
| return is_LB ? rate : -1; |
| } |
| |
| int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags, |
| enum nl80211_band band) |
| { |
| int rate = rate_n_flags & RATE_LEGACY_RATE_MSK_V1; |
| int idx; |
| int band_offset = 0; |
| |
| /* Legacy rate format, search for match in table */ |
| if (band != NL80211_BAND_2GHZ) |
| band_offset = IWL_FIRST_OFDM_RATE; |
| for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) |
| if (iwl_fw_rate_idx_to_plcp(idx) == rate) |
| return idx - band_offset; |
| |
| return -1; |
| } |
| |
| u8 iwl_mvm_mac80211_idx_to_hwrate(const struct iwl_fw *fw, int rate_idx) |
| { |
| if (iwl_fw_lookup_cmd_ver(fw, TX_CMD, 0) > 8) |
| /* In the new rate legacy rates are indexed: |
| * 0 - 3 for CCK and 0 - 7 for OFDM. |
| */ |
| return (rate_idx >= IWL_FIRST_OFDM_RATE ? |
| rate_idx - IWL_FIRST_OFDM_RATE : |
| rate_idx); |
| |
| return iwl_fw_rate_idx_to_plcp(rate_idx); |
| } |
| |
| u8 iwl_mvm_mac80211_ac_to_ucode_ac(enum ieee80211_ac_numbers ac) |
| { |
| static const u8 mac80211_ac_to_ucode_ac[] = { |
| AC_VO, |
| AC_VI, |
| AC_BE, |
| AC_BK |
| }; |
| |
| return mac80211_ac_to_ucode_ac[ac]; |
| } |
| |
| void iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) |
| { |
| struct iwl_rx_packet *pkt = rxb_addr(rxb); |
| struct iwl_error_resp *err_resp = (void *)pkt->data; |
| |
| IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n", |
| le32_to_cpu(err_resp->error_type), err_resp->cmd_id); |
| IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n", |
| le16_to_cpu(err_resp->bad_cmd_seq_num), |
| le32_to_cpu(err_resp->error_service)); |
| IWL_ERR(mvm, "FW Error notification: timestamp 0x%016llX\n", |
| le64_to_cpu(err_resp->timestamp)); |
| } |
| |
| /* |
| * Returns the first antenna as ANT_[ABC], as defined in iwl-config.h. |
| * The parameter should also be a combination of ANT_[ABC]. |
| */ |
| u8 first_antenna(u8 mask) |
| { |
| BUILD_BUG_ON(ANT_A != BIT(0)); /* using ffs is wrong if not */ |
| if (WARN_ON_ONCE(!mask)) /* ffs will return 0 if mask is zeroed */ |
| return BIT(0); |
| return BIT(ffs(mask) - 1); |
| } |
| |
| #define MAX_ANT_NUM 2 |
| /* |
| * Toggles between TX antennas to send the probe request on. |
| * Receives the bitmask of valid TX antennas and the *index* used |
| * for the last TX, and returns the next valid *index* to use. |
| * In order to set it in the tx_cmd, must do BIT(idx). |
| */ |
| u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx) |
| { |
| u8 ind = last_idx; |
| int i; |
| |
| for (i = 0; i < MAX_ANT_NUM; i++) { |
| ind = (ind + 1) % MAX_ANT_NUM; |
| if (valid & BIT(ind)) |
| return ind; |
| } |
| |
| WARN_ONCE(1, "Failed to toggle between antennas 0x%x", valid); |
| return last_idx; |
| } |
| |
| /** |
| * iwl_mvm_send_lq_cmd() - Send link quality command |
| * @mvm: Driver data. |
| * @lq: Link quality command to send. |
| * |
| * The link quality command is sent as the last step of station creation. |
| * This is the special case in which init is set and we call a callback in |
| * this case to clear the state indicating that station creation is in |
| * progress. |
| */ |
| int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq) |
| { |
| struct iwl_host_cmd cmd = { |
| .id = LQ_CMD, |
| .len = { sizeof(struct iwl_lq_cmd), }, |
| .flags = CMD_ASYNC, |
| .data = { lq, }, |
| }; |
| |
| if (WARN_ON(lq->sta_id == IWL_MVM_INVALID_STA || |
| iwl_mvm_has_tlc_offload(mvm))) |
| return -EINVAL; |
| |
| return iwl_mvm_send_cmd(mvm, &cmd); |
| } |
| |
| /** |
| * iwl_mvm_update_smps - Get a request to change the SMPS mode |
| * @mvm: Driver data. |
| * @vif: Pointer to the ieee80211_vif structure |
| * @req_type: The part of the driver who call for a change. |
| * @smps_request: The request to change the SMPS mode. |
| * @link_id: for MLO link_id, otherwise 0 (deflink) |
| * |
| * Get a requst to change the SMPS mode, |
| * and change it according to all other requests in the driver. |
| */ |
| void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| enum iwl_mvm_smps_type_request req_type, |
| enum ieee80211_smps_mode smps_request, |
| unsigned int link_id) |
| { |
| struct iwl_mvm_vif *mvmvif; |
| enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC; |
| int i; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */ |
| if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) |
| return; |
| |
| if (vif->type != NL80211_IFTYPE_STATION) |
| return; |
| |
| mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| if (WARN_ON_ONCE(!mvmvif->link[link_id])) |
| return; |
| |
| mvmvif->link[link_id]->smps_requests[req_type] = smps_request; |
| for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { |
| if (mvmvif->link[link_id]->smps_requests[i] == |
| IEEE80211_SMPS_STATIC) { |
| smps_mode = IEEE80211_SMPS_STATIC; |
| break; |
| } |
| if (mvmvif->link[link_id]->smps_requests[i] == |
| IEEE80211_SMPS_DYNAMIC) |
| smps_mode = IEEE80211_SMPS_DYNAMIC; |
| } |
| |
| /* SMPS is disabled in eSR */ |
| if (mvmvif->esr_active) |
| smps_mode = IEEE80211_SMPS_OFF; |
| |
| ieee80211_request_smps(vif, link_id, smps_mode); |
| } |
| |
| void iwl_mvm_update_smps_on_active_links(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| enum iwl_mvm_smps_type_request req_type, |
| enum ieee80211_smps_mode smps_request) |
| { |
| struct ieee80211_bss_conf *link_conf; |
| unsigned int link_id; |
| |
| rcu_read_lock(); |
| for_each_vif_active_link(vif, link_conf, link_id) |
| iwl_mvm_update_smps(mvm, vif, req_type, smps_request, |
| link_id); |
| rcu_read_unlock(); |
| } |
| |
| static bool iwl_wait_stats_complete(struct iwl_notif_wait_data *notif_wait, |
| struct iwl_rx_packet *pkt, void *data) |
| { |
| WARN_ON(pkt->hdr.cmd != STATISTICS_NOTIFICATION); |
| |
| return true; |
| } |
| |
| static int iwl_mvm_request_system_statistics(struct iwl_mvm *mvm, bool clear, |
| u8 cmd_ver) |
| { |
| struct iwl_system_statistics_cmd system_cmd = { |
| .cfg_mask = clear ? |
| cpu_to_le32(IWL_STATS_CFG_FLG_ON_DEMAND_NTFY_MSK) : |
| cpu_to_le32(IWL_STATS_CFG_FLG_RESET_MSK | |
| IWL_STATS_CFG_FLG_ON_DEMAND_NTFY_MSK), |
| .type_id_mask = cpu_to_le32(IWL_STATS_NTFY_TYPE_ID_OPER | |
| IWL_STATS_NTFY_TYPE_ID_OPER_PART1), |
| }; |
| struct iwl_host_cmd cmd = { |
| .id = WIDE_ID(SYSTEM_GROUP, SYSTEM_STATISTICS_CMD), |
| .len[0] = sizeof(system_cmd), |
| .data[0] = &system_cmd, |
| }; |
| struct iwl_notification_wait stats_wait; |
| static const u16 stats_complete[] = { |
| WIDE_ID(SYSTEM_GROUP, SYSTEM_STATISTICS_END_NOTIF), |
| }; |
| int ret; |
| |
| if (cmd_ver != 1) { |
| IWL_FW_CHECK_FAILED(mvm, |
| "Invalid system statistics command version:%d\n", |
| cmd_ver); |
| return -EOPNOTSUPP; |
| } |
| |
| iwl_init_notification_wait(&mvm->notif_wait, &stats_wait, |
| stats_complete, ARRAY_SIZE(stats_complete), |
| NULL, NULL); |
| |
| mvm->statistics_clear = clear; |
| ret = iwl_mvm_send_cmd(mvm, &cmd); |
| if (ret) { |
| iwl_remove_notification(&mvm->notif_wait, &stats_wait); |
| return ret; |
| } |
| |
| /* 500ms for OPERATIONAL, PART1 and END notification should be enough |
| * for FW to collect data from all LMACs and send |
| * STATISTICS_NOTIFICATION to host |
| */ |
| ret = iwl_wait_notification(&mvm->notif_wait, &stats_wait, HZ / 2); |
| if (ret) |
| return ret; |
| |
| if (clear) |
| iwl_mvm_accu_radio_stats(mvm); |
| |
| return ret; |
| } |
| |
| int iwl_mvm_request_statistics(struct iwl_mvm *mvm, bool clear) |
| { |
| struct iwl_statistics_cmd scmd = { |
| .flags = clear ? cpu_to_le32(IWL_STATISTICS_FLG_CLEAR) : 0, |
| }; |
| |
| struct iwl_host_cmd cmd = { |
| .id = STATISTICS_CMD, |
| .len[0] = sizeof(scmd), |
| .data[0] = &scmd, |
| }; |
| u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, |
| WIDE_ID(SYSTEM_GROUP, |
| SYSTEM_STATISTICS_CMD), |
| IWL_FW_CMD_VER_UNKNOWN); |
| int ret; |
| |
| if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) |
| return iwl_mvm_request_system_statistics(mvm, clear, cmd_ver); |
| |
| /* From version 15 - STATISTICS_NOTIFICATION, the reply for |
| * STATISTICS_CMD is empty, and the response is with |
| * STATISTICS_NOTIFICATION notification |
| */ |
| if (iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, |
| STATISTICS_NOTIFICATION, 0) < 15) { |
| cmd.flags = CMD_WANT_SKB; |
| |
| ret = iwl_mvm_send_cmd(mvm, &cmd); |
| if (ret) |
| return ret; |
| |
| iwl_mvm_handle_rx_statistics(mvm, cmd.resp_pkt); |
| iwl_free_resp(&cmd); |
| } else { |
| struct iwl_notification_wait stats_wait; |
| static const u16 stats_complete[] = { |
| STATISTICS_NOTIFICATION, |
| }; |
| |
| iwl_init_notification_wait(&mvm->notif_wait, &stats_wait, |
| stats_complete, ARRAY_SIZE(stats_complete), |
| iwl_wait_stats_complete, NULL); |
| |
| ret = iwl_mvm_send_cmd(mvm, &cmd); |
| if (ret) { |
| iwl_remove_notification(&mvm->notif_wait, &stats_wait); |
| return ret; |
| } |
| |
| /* 200ms should be enough for FW to collect data from all |
| * LMACs and send STATISTICS_NOTIFICATION to host |
| */ |
| ret = iwl_wait_notification(&mvm->notif_wait, &stats_wait, HZ / 5); |
| if (ret) |
| return ret; |
| } |
| |
| if (clear) |
| iwl_mvm_accu_radio_stats(mvm); |
| |
| return 0; |
| } |
| |
| void iwl_mvm_accu_radio_stats(struct iwl_mvm *mvm) |
| { |
| mvm->accu_radio_stats.rx_time += mvm->radio_stats.rx_time; |
| mvm->accu_radio_stats.tx_time += mvm->radio_stats.tx_time; |
| mvm->accu_radio_stats.on_time_rf += mvm->radio_stats.on_time_rf; |
| mvm->accu_radio_stats.on_time_scan += mvm->radio_stats.on_time_scan; |
| } |
| |
| struct iwl_mvm_diversity_iter_data { |
| struct iwl_mvm_phy_ctxt *ctxt; |
| bool result; |
| }; |
| |
| static void iwl_mvm_diversity_iter(void *_data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_mvm_diversity_iter_data *data = _data; |
| int i, link_id; |
| |
| for_each_mvm_vif_valid_link(mvmvif, link_id) { |
| struct iwl_mvm_vif_link_info *link_info = mvmvif->link[link_id]; |
| |
| if (link_info->phy_ctxt != data->ctxt) |
| continue; |
| |
| for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { |
| if (link_info->smps_requests[i] == IEEE80211_SMPS_STATIC || |
| link_info->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) { |
| data->result = false; |
| break; |
| } |
| } |
| } |
| } |
| |
| bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm, |
| struct iwl_mvm_phy_ctxt *ctxt) |
| { |
| struct iwl_mvm_diversity_iter_data data = { |
| .ctxt = ctxt, |
| .result = true, |
| }; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
| return false; |
| |
| if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) |
| return false; |
| |
| if (mvm->cfg->rx_with_siso_diversity) |
| return false; |
| |
| ieee80211_iterate_active_interfaces_atomic( |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_diversity_iter, &data); |
| |
| return data.result; |
| } |
| |
| void iwl_mvm_send_low_latency_cmd(struct iwl_mvm *mvm, |
| bool low_latency, u16 mac_id) |
| { |
| struct iwl_mac_low_latency_cmd cmd = { |
| .mac_id = cpu_to_le32(mac_id) |
| }; |
| |
| if (!fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_DYNAMIC_QUOTA)) |
| return; |
| |
| if (low_latency) { |
| /* currently we don't care about the direction */ |
| cmd.low_latency_rx = 1; |
| cmd.low_latency_tx = 1; |
| } |
| |
| if (iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(MAC_CONF_GROUP, LOW_LATENCY_CMD), |
| 0, sizeof(cmd), &cmd)) |
| IWL_ERR(mvm, "Failed to send low latency command\n"); |
| } |
| |
| int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| bool low_latency, |
| enum iwl_mvm_low_latency_cause cause) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| int res; |
| bool prev; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| prev = iwl_mvm_vif_low_latency(mvmvif); |
| iwl_mvm_vif_set_low_latency(mvmvif, low_latency, cause); |
| |
| low_latency = iwl_mvm_vif_low_latency(mvmvif); |
| |
| if (low_latency == prev) |
| return 0; |
| |
| iwl_mvm_send_low_latency_cmd(mvm, low_latency, mvmvif->id); |
| |
| res = iwl_mvm_update_quotas(mvm, false, NULL); |
| if (res) |
| return res; |
| |
| iwl_mvm_bt_coex_vif_change(mvm); |
| |
| return iwl_mvm_power_update_mac(mvm); |
| } |
| |
| struct iwl_mvm_low_latency_iter { |
| bool result; |
| bool result_per_band[NUM_NL80211_BANDS]; |
| }; |
| |
| static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_low_latency_iter *result = _data; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| enum nl80211_band band; |
| |
| if (iwl_mvm_vif_low_latency(mvmvif)) { |
| result->result = true; |
| |
| if (!mvmvif->deflink.phy_ctxt) |
| return; |
| |
| band = mvmvif->deflink.phy_ctxt->channel->band; |
| result->result_per_band[band] = true; |
| } |
| } |
| |
| bool iwl_mvm_low_latency(struct iwl_mvm *mvm) |
| { |
| struct iwl_mvm_low_latency_iter data = {}; |
| |
| ieee80211_iterate_active_interfaces_atomic( |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_ll_iter, &data); |
| |
| return data.result; |
| } |
| |
| bool iwl_mvm_low_latency_band(struct iwl_mvm *mvm, enum nl80211_band band) |
| { |
| struct iwl_mvm_low_latency_iter data = {}; |
| |
| ieee80211_iterate_active_interfaces_atomic( |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_ll_iter, &data); |
| |
| return data.result_per_band[band]; |
| } |
| |
| struct iwl_bss_iter_data { |
| struct ieee80211_vif *vif; |
| bool error; |
| }; |
| |
| static void iwl_mvm_bss_iface_iterator(void *_data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_bss_iter_data *data = _data; |
| |
| if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) |
| return; |
| |
| if (data->vif) { |
| data->error = true; |
| return; |
| } |
| |
| data->vif = vif; |
| } |
| |
| struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm) |
| { |
| struct iwl_bss_iter_data bss_iter_data = {}; |
| |
| ieee80211_iterate_active_interfaces_atomic( |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_bss_iface_iterator, &bss_iter_data); |
| |
| if (bss_iter_data.error) { |
| IWL_ERR(mvm, "More than one managed interface active!\n"); |
| return ERR_PTR(-EINVAL); |
| } |
| |
| return bss_iter_data.vif; |
| } |
| |
| struct iwl_bss_find_iter_data { |
| struct ieee80211_vif *vif; |
| u32 macid; |
| }; |
| |
| static void iwl_mvm_bss_find_iface_iterator(void *_data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_bss_find_iter_data *data = _data; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| if (mvmvif->id == data->macid) |
| data->vif = vif; |
| } |
| |
| struct ieee80211_vif *iwl_mvm_get_vif_by_macid(struct iwl_mvm *mvm, u32 macid) |
| { |
| struct iwl_bss_find_iter_data data = { |
| .macid = macid, |
| }; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| ieee80211_iterate_active_interfaces_atomic( |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_bss_find_iface_iterator, &data); |
| |
| return data.vif; |
| } |
| |
| struct iwl_sta_iter_data { |
| bool assoc; |
| }; |
| |
| static void iwl_mvm_sta_iface_iterator(void *_data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_sta_iter_data *data = _data; |
| |
| if (vif->type != NL80211_IFTYPE_STATION) |
| return; |
| |
| if (vif->cfg.assoc) |
| data->assoc = true; |
| } |
| |
| bool iwl_mvm_is_vif_assoc(struct iwl_mvm *mvm) |
| { |
| struct iwl_sta_iter_data data = { |
| .assoc = false, |
| }; |
| |
| ieee80211_iterate_active_interfaces_atomic(mvm->hw, |
| IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_sta_iface_iterator, |
| &data); |
| return data.assoc; |
| } |
| |
| unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| bool tdls, bool cmd_q) |
| { |
| struct iwl_fw_dbg_trigger_tlv *trigger; |
| struct iwl_fw_dbg_trigger_txq_timer *txq_timer; |
| unsigned int default_timeout = cmd_q ? |
| IWL_DEF_WD_TIMEOUT : |
| mvm->trans->trans_cfg->base_params->wd_timeout; |
| |
| if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS)) { |
| /* |
| * We can't know when the station is asleep or awake, so we |
| * must disable the queue hang detection. |
| */ |
| if (fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_STA_PM_NOTIF) && |
| vif && vif->type == NL80211_IFTYPE_AP) |
| return IWL_WATCHDOG_DISABLED; |
| return default_timeout; |
| } |
| |
| trigger = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS); |
| txq_timer = (void *)trigger->data; |
| |
| if (tdls) |
| return le32_to_cpu(txq_timer->tdls); |
| |
| if (cmd_q) |
| return le32_to_cpu(txq_timer->command_queue); |
| |
| if (WARN_ON(!vif)) |
| return default_timeout; |
| |
| switch (ieee80211_vif_type_p2p(vif)) { |
| case NL80211_IFTYPE_ADHOC: |
| return le32_to_cpu(txq_timer->ibss); |
| case NL80211_IFTYPE_STATION: |
| return le32_to_cpu(txq_timer->bss); |
| case NL80211_IFTYPE_AP: |
| return le32_to_cpu(txq_timer->softap); |
| case NL80211_IFTYPE_P2P_CLIENT: |
| return le32_to_cpu(txq_timer->p2p_client); |
| case NL80211_IFTYPE_P2P_GO: |
| return le32_to_cpu(txq_timer->p2p_go); |
| case NL80211_IFTYPE_P2P_DEVICE: |
| return le32_to_cpu(txq_timer->p2p_device); |
| case NL80211_IFTYPE_MONITOR: |
| return default_timeout; |
| default: |
| WARN_ON(1); |
| return mvm->trans->trans_cfg->base_params->wd_timeout; |
| } |
| } |
| |
| void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| const char *errmsg) |
| { |
| struct iwl_fw_dbg_trigger_tlv *trig; |
| struct iwl_fw_dbg_trigger_mlme *trig_mlme; |
| |
| trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), |
| FW_DBG_TRIGGER_MLME); |
| if (!trig) |
| goto out; |
| |
| trig_mlme = (void *)trig->data; |
| |
| if (trig_mlme->stop_connection_loss && |
| --trig_mlme->stop_connection_loss) |
| goto out; |
| |
| iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, "%s", errmsg); |
| |
| out: |
| ieee80211_connection_loss(vif); |
| } |
| |
| void iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| const struct ieee80211_sta *sta, |
| u16 tid) |
| { |
| struct iwl_fw_dbg_trigger_tlv *trig; |
| struct iwl_fw_dbg_trigger_ba *ba_trig; |
| |
| trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), |
| FW_DBG_TRIGGER_BA); |
| if (!trig) |
| return; |
| |
| ba_trig = (void *)trig->data; |
| |
| if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(tid))) |
| return; |
| |
| iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, |
| "Frame from %pM timed out, tid %d", |
| sta->addr, tid); |
| } |
| |
| u8 iwl_mvm_tcm_load_percentage(u32 airtime, u32 elapsed) |
| { |
| if (!elapsed) |
| return 0; |
| |
| return (100 * airtime / elapsed) / USEC_PER_MSEC; |
| } |
| |
| static enum iwl_mvm_traffic_load |
| iwl_mvm_tcm_load(struct iwl_mvm *mvm, u32 airtime, unsigned long elapsed) |
| { |
| u8 load = iwl_mvm_tcm_load_percentage(airtime, elapsed); |
| |
| if (load > IWL_MVM_TCM_LOAD_HIGH_THRESH) |
| return IWL_MVM_TRAFFIC_HIGH; |
| if (load > IWL_MVM_TCM_LOAD_MEDIUM_THRESH) |
| return IWL_MVM_TRAFFIC_MEDIUM; |
| |
| return IWL_MVM_TRAFFIC_LOW; |
| } |
| |
| static void iwl_mvm_tcm_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm *mvm = _data; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| bool low_latency, prev = mvmvif->low_latency & LOW_LATENCY_TRAFFIC; |
| |
| if (mvmvif->id >= NUM_MAC_INDEX_DRIVER) |
| return; |
| |
| low_latency = mvm->tcm.result.low_latency[mvmvif->id]; |
| |
| if (!mvm->tcm.result.change[mvmvif->id] && |
| prev == low_latency) { |
| iwl_mvm_update_quotas(mvm, false, NULL); |
| return; |
| } |
| |
| if (prev != low_latency) { |
| /* this sends traffic load and updates quota as well */ |
| iwl_mvm_update_low_latency(mvm, vif, low_latency, |
| LOW_LATENCY_TRAFFIC); |
| } else { |
| iwl_mvm_update_quotas(mvm, false, NULL); |
| } |
| } |
| |
| static void iwl_mvm_tcm_results(struct iwl_mvm *mvm) |
| { |
| mutex_lock(&mvm->mutex); |
| |
| ieee80211_iterate_active_interfaces( |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_tcm_iter, mvm); |
| |
| if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) |
| iwl_mvm_config_scan(mvm); |
| |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| static void iwl_mvm_tcm_uapsd_nonagg_detected_wk(struct work_struct *wk) |
| { |
| struct iwl_mvm *mvm; |
| struct iwl_mvm_vif *mvmvif; |
| struct ieee80211_vif *vif; |
| |
| mvmvif = container_of(wk, struct iwl_mvm_vif, |
| uapsd_nonagg_detected_wk.work); |
| vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); |
| mvm = mvmvif->mvm; |
| |
| if (mvm->tcm.data[mvmvif->id].opened_rx_ba_sessions) |
| return; |
| |
| /* remember that this AP is broken */ |
| memcpy(mvm->uapsd_noagg_bssids[mvm->uapsd_noagg_bssid_write_idx].addr, |
| vif->bss_conf.bssid, ETH_ALEN); |
| mvm->uapsd_noagg_bssid_write_idx++; |
| if (mvm->uapsd_noagg_bssid_write_idx >= IWL_MVM_UAPSD_NOAGG_LIST_LEN) |
| mvm->uapsd_noagg_bssid_write_idx = 0; |
| |
| iwl_mvm_connection_loss(mvm, vif, |
| "AP isn't using AMPDU with uAPSD enabled"); |
| } |
| |
| static void iwl_mvm_uapsd_agg_disconnect(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| if (vif->type != NL80211_IFTYPE_STATION) |
| return; |
| |
| if (!vif->cfg.assoc) |
| return; |
| |
| if (!mvmvif->deflink.queue_params[IEEE80211_AC_VO].uapsd && |
| !mvmvif->deflink.queue_params[IEEE80211_AC_VI].uapsd && |
| !mvmvif->deflink.queue_params[IEEE80211_AC_BE].uapsd && |
| !mvmvif->deflink.queue_params[IEEE80211_AC_BK].uapsd) |
| return; |
| |
| if (mvm->tcm.data[mvmvif->id].uapsd_nonagg_detect.detected) |
| return; |
| |
| mvm->tcm.data[mvmvif->id].uapsd_nonagg_detect.detected = true; |
| IWL_INFO(mvm, |
| "detected AP should do aggregation but isn't, likely due to U-APSD\n"); |
| schedule_delayed_work(&mvmvif->uapsd_nonagg_detected_wk, |
| 15 * HZ); |
| } |
| |
| static void iwl_mvm_check_uapsd_agg_expected_tpt(struct iwl_mvm *mvm, |
| unsigned int elapsed, |
| int mac) |
| { |
| u64 bytes = mvm->tcm.data[mac].uapsd_nonagg_detect.rx_bytes; |
| u64 tpt; |
| unsigned long rate; |
| struct ieee80211_vif *vif; |
| |
| rate = ewma_rate_read(&mvm->tcm.data[mac].uapsd_nonagg_detect.rate); |
| |
| if (!rate || mvm->tcm.data[mac].opened_rx_ba_sessions || |
| mvm->tcm.data[mac].uapsd_nonagg_detect.detected) |
| return; |
| |
| if (iwl_mvm_has_new_rx_api(mvm)) { |
| tpt = 8 * bytes; /* kbps */ |
| do_div(tpt, elapsed); |
| rate *= 1000; /* kbps */ |
| if (tpt < 22 * rate / 100) |
| return; |
| } else { |
| /* |
| * the rate here is actually the threshold, in 100Kbps units, |
| * so do the needed conversion from bytes to 100Kbps: |
| * 100kb = bits / (100 * 1000), |
| * 100kbps = 100kb / (msecs / 1000) == |
| * (bits / (100 * 1000)) / (msecs / 1000) == |
| * bits / (100 * msecs) |
| */ |
| tpt = (8 * bytes); |
| do_div(tpt, elapsed * 100); |
| if (tpt < rate) |
| return; |
| } |
| |
| rcu_read_lock(); |
| vif = rcu_dereference(mvm->vif_id_to_mac[mac]); |
| if (vif) |
| iwl_mvm_uapsd_agg_disconnect(mvm, vif); |
| rcu_read_unlock(); |
| } |
| |
| static void iwl_mvm_tcm_iterator(void *_data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| u32 *band = _data; |
| |
| if (!mvmvif->deflink.phy_ctxt) |
| return; |
| |
| band[mvmvif->id] = mvmvif->deflink.phy_ctxt->channel->band; |
| } |
| |
| static unsigned long iwl_mvm_calc_tcm_stats(struct iwl_mvm *mvm, |
| unsigned long ts, |
| bool handle_uapsd) |
| { |
| unsigned int elapsed = jiffies_to_msecs(ts - mvm->tcm.ts); |
| unsigned int uapsd_elapsed = |
| jiffies_to_msecs(ts - mvm->tcm.uapsd_nonagg_ts); |
| u32 total_airtime = 0; |
| u32 band_airtime[NUM_NL80211_BANDS] = {0}; |
| u32 band[NUM_MAC_INDEX_DRIVER] = {0}; |
| int ac, mac, i; |
| bool low_latency = false; |
| enum iwl_mvm_traffic_load load, band_load; |
| bool handle_ll = time_after(ts, mvm->tcm.ll_ts + MVM_LL_PERIOD); |
| |
| if (handle_ll) |
| mvm->tcm.ll_ts = ts; |
| if (handle_uapsd) |
| mvm->tcm.uapsd_nonagg_ts = ts; |
| |
| mvm->tcm.result.elapsed = elapsed; |
| |
| ieee80211_iterate_active_interfaces_atomic(mvm->hw, |
| IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_tcm_iterator, |
| &band); |
| |
| for (mac = 0; mac < NUM_MAC_INDEX_DRIVER; mac++) { |
| struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[mac]; |
| u32 vo_vi_pkts = 0; |
| u32 airtime = mdata->rx.airtime + mdata->tx.airtime; |
| |
| total_airtime += airtime; |
| band_airtime[band[mac]] += airtime; |
| |
| load = iwl_mvm_tcm_load(mvm, airtime, elapsed); |
| mvm->tcm.result.change[mac] = load != mvm->tcm.result.load[mac]; |
| mvm->tcm.result.load[mac] = load; |
| mvm->tcm.result.airtime[mac] = airtime; |
| |
| for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_VI; ac++) |
| vo_vi_pkts += mdata->rx.pkts[ac] + |
| mdata->tx.pkts[ac]; |
| |
| /* enable immediately with enough packets but defer disabling */ |
| if (vo_vi_pkts > IWL_MVM_TCM_LOWLAT_ENABLE_THRESH) |
| mvm->tcm.result.low_latency[mac] = true; |
| else if (handle_ll) |
| mvm->tcm.result.low_latency[mac] = false; |
| |
| if (handle_ll) { |
| /* clear old data */ |
| memset(&mdata->rx.pkts, 0, sizeof(mdata->rx.pkts)); |
| memset(&mdata->tx.pkts, 0, sizeof(mdata->tx.pkts)); |
| } |
| low_latency |= mvm->tcm.result.low_latency[mac]; |
| |
| if (!mvm->tcm.result.low_latency[mac] && handle_uapsd) |
| iwl_mvm_check_uapsd_agg_expected_tpt(mvm, uapsd_elapsed, |
| mac); |
| /* clear old data */ |
| if (handle_uapsd) |
| mdata->uapsd_nonagg_detect.rx_bytes = 0; |
| memset(&mdata->rx.airtime, 0, sizeof(mdata->rx.airtime)); |
| memset(&mdata->tx.airtime, 0, sizeof(mdata->tx.airtime)); |
| } |
| |
| load = iwl_mvm_tcm_load(mvm, total_airtime, elapsed); |
| mvm->tcm.result.global_load = load; |
| |
| for (i = 0; i < NUM_NL80211_BANDS; i++) { |
| band_load = iwl_mvm_tcm_load(mvm, band_airtime[i], elapsed); |
| mvm->tcm.result.band_load[i] = band_load; |
| } |
| |
| /* |
| * If the current load isn't low we need to force re-evaluation |
| * in the TCM period, so that we can return to low load if there |
| * was no traffic at all (and thus iwl_mvm_recalc_tcm didn't get |
| * triggered by traffic). |
| */ |
| if (load != IWL_MVM_TRAFFIC_LOW) |
| return MVM_TCM_PERIOD; |
| /* |
| * If low-latency is active we need to force re-evaluation after |
| * (the longer) MVM_LL_PERIOD, so that we can disable low-latency |
| * when there's no traffic at all. |
| */ |
| if (low_latency) |
| return MVM_LL_PERIOD; |
| /* |
| * Otherwise, we don't need to run the work struct because we're |
| * in the default "idle" state - traffic indication is low (which |
| * also covers the "no traffic" case) and low-latency is disabled |
| * so there's no state that may need to be disabled when there's |
| * no traffic at all. |
| * |
| * Note that this has no impact on the regular scheduling of the |
| * updates triggered by traffic - those happen whenever one of the |
| * two timeouts expire (if there's traffic at all.) |
| */ |
| return 0; |
| } |
| |
| void iwl_mvm_recalc_tcm(struct iwl_mvm *mvm) |
| { |
| unsigned long ts = jiffies; |
| bool handle_uapsd = |
| time_after(ts, mvm->tcm.uapsd_nonagg_ts + |
| msecs_to_jiffies(IWL_MVM_UAPSD_NONAGG_PERIOD)); |
| |
| spin_lock(&mvm->tcm.lock); |
| if (mvm->tcm.paused || !time_after(ts, mvm->tcm.ts + MVM_TCM_PERIOD)) { |
| spin_unlock(&mvm->tcm.lock); |
| return; |
| } |
| spin_unlock(&mvm->tcm.lock); |
| |
| if (handle_uapsd && iwl_mvm_has_new_rx_api(mvm)) { |
| mutex_lock(&mvm->mutex); |
| if (iwl_mvm_request_statistics(mvm, true)) |
| handle_uapsd = false; |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| spin_lock(&mvm->tcm.lock); |
| /* re-check if somebody else won the recheck race */ |
| if (!mvm->tcm.paused && time_after(ts, mvm->tcm.ts + MVM_TCM_PERIOD)) { |
| /* calculate statistics */ |
| unsigned long work_delay = iwl_mvm_calc_tcm_stats(mvm, ts, |
| handle_uapsd); |
| |
| /* the memset needs to be visible before the timestamp */ |
| smp_mb(); |
| mvm->tcm.ts = ts; |
| if (work_delay) |
| schedule_delayed_work(&mvm->tcm.work, work_delay); |
| } |
| spin_unlock(&mvm->tcm.lock); |
| |
| iwl_mvm_tcm_results(mvm); |
| } |
| |
| void iwl_mvm_tcm_work(struct work_struct *work) |
| { |
| struct delayed_work *delayed_work = to_delayed_work(work); |
| struct iwl_mvm *mvm = container_of(delayed_work, struct iwl_mvm, |
| tcm.work); |
| |
| iwl_mvm_recalc_tcm(mvm); |
| } |
| |
| void iwl_mvm_pause_tcm(struct iwl_mvm *mvm, bool with_cancel) |
| { |
| spin_lock_bh(&mvm->tcm.lock); |
| mvm->tcm.paused = true; |
| spin_unlock_bh(&mvm->tcm.lock); |
| if (with_cancel) |
| cancel_delayed_work_sync(&mvm->tcm.work); |
| } |
| |
| void iwl_mvm_resume_tcm(struct iwl_mvm *mvm) |
| { |
| int mac; |
| bool low_latency = false; |
| |
| spin_lock_bh(&mvm->tcm.lock); |
| mvm->tcm.ts = jiffies; |
| mvm->tcm.ll_ts = jiffies; |
| for (mac = 0; mac < NUM_MAC_INDEX_DRIVER; mac++) { |
| struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[mac]; |
| |
| memset(&mdata->rx.pkts, 0, sizeof(mdata->rx.pkts)); |
| memset(&mdata->tx.pkts, 0, sizeof(mdata->tx.pkts)); |
| memset(&mdata->rx.airtime, 0, sizeof(mdata->rx.airtime)); |
| memset(&mdata->tx.airtime, 0, sizeof(mdata->tx.airtime)); |
| |
| if (mvm->tcm.result.low_latency[mac]) |
| low_latency = true; |
| } |
| /* The TCM data needs to be reset before "paused" flag changes */ |
| smp_mb(); |
| mvm->tcm.paused = false; |
| |
| /* |
| * if the current load is not low or low latency is active, force |
| * re-evaluation to cover the case of no traffic. |
| */ |
| if (mvm->tcm.result.global_load > IWL_MVM_TRAFFIC_LOW) |
| schedule_delayed_work(&mvm->tcm.work, MVM_TCM_PERIOD); |
| else if (low_latency) |
| schedule_delayed_work(&mvm->tcm.work, MVM_LL_PERIOD); |
| |
| spin_unlock_bh(&mvm->tcm.lock); |
| } |
| |
| void iwl_mvm_tcm_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| INIT_DELAYED_WORK(&mvmvif->uapsd_nonagg_detected_wk, |
| iwl_mvm_tcm_uapsd_nonagg_detected_wk); |
| } |
| |
| void iwl_mvm_tcm_rm_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| cancel_delayed_work_sync(&mvmvif->uapsd_nonagg_detected_wk); |
| } |
| |
| u32 iwl_mvm_get_systime(struct iwl_mvm *mvm) |
| { |
| u32 reg_addr = DEVICE_SYSTEM_TIME_REG; |
| |
| if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000 && |
| mvm->trans->cfg->gp2_reg_addr) |
| reg_addr = mvm->trans->cfg->gp2_reg_addr; |
| |
| return iwl_read_prph(mvm->trans, reg_addr); |
| } |
| |
| void iwl_mvm_get_sync_time(struct iwl_mvm *mvm, int clock_type, |
| u32 *gp2, u64 *boottime, ktime_t *realtime) |
| { |
| bool ps_disabled; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| /* Disable power save when reading GP2 */ |
| ps_disabled = mvm->ps_disabled; |
| if (!ps_disabled) { |
| mvm->ps_disabled = true; |
| iwl_mvm_power_update_device(mvm); |
| } |
| |
| *gp2 = iwl_mvm_get_systime(mvm); |
| |
| if (clock_type == CLOCK_BOOTTIME && boottime) |
| *boottime = ktime_get_boottime_ns(); |
| else if (clock_type == CLOCK_REALTIME && realtime) |
| *realtime = ktime_get_real(); |
| |
| if (!ps_disabled) { |
| mvm->ps_disabled = ps_disabled; |
| iwl_mvm_power_update_device(mvm); |
| } |
| } |
| |
| /* Find if at least two links from different vifs use same channel |
| * FIXME: consider having a refcount array in struct iwl_mvm_vif for |
| * used phy_ctxt ids. |
| */ |
| bool iwl_mvm_have_links_same_channel(struct iwl_mvm_vif *vif1, |
| struct iwl_mvm_vif *vif2) |
| { |
| unsigned int i, j; |
| |
| for_each_mvm_vif_valid_link(vif1, i) { |
| for_each_mvm_vif_valid_link(vif2, j) { |
| if (vif1->link[i]->phy_ctxt == vif2->link[j]->phy_ctxt) |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| bool iwl_mvm_vif_is_active(struct iwl_mvm_vif *mvmvif) |
| { |
| unsigned int i; |
| |
| /* FIXME: can it fail when phy_ctxt is assigned? */ |
| for_each_mvm_vif_valid_link(mvmvif, i) { |
| if (mvmvif->link[i]->phy_ctxt && |
| mvmvif->link[i]->phy_ctxt->id < NUM_PHY_CTX) |
| return true; |
| } |
| |
| return false; |
| } |