diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/sf.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/sf.c | 340 |
1 files changed, 0 insertions, 340 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/sf.c b/drivers/net/wireless/iwlwifi/mvm/sf.c deleted file mode 100644 index b0f59fdd287c..000000000000 --- a/drivers/net/wireless/iwlwifi/mvm/sf.c +++ /dev/null @@ -1,340 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. - * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called COPYING. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. - * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ -#include "mvm.h" - -/* For counting bound interfaces */ -struct iwl_mvm_active_iface_iterator_data { - struct ieee80211_vif *ignore_vif; - u8 sta_vif_ap_sta_id; - enum iwl_sf_state sta_vif_state; - int num_active_macs; -}; - -/* - * Count bound interfaces which are not p2p, besides data->ignore_vif. - * data->station_vif will point to one bound vif of type station, if exists. - */ -static void iwl_mvm_bound_iface_iterator(void *_data, u8 *mac, - struct ieee80211_vif *vif) -{ - struct iwl_mvm_active_iface_iterator_data *data = _data; - struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - - if (vif == data->ignore_vif || !mvmvif->phy_ctxt || - vif->type == NL80211_IFTYPE_P2P_DEVICE) - return; - - data->num_active_macs++; - - if (vif->type == NL80211_IFTYPE_STATION) { - data->sta_vif_ap_sta_id = mvmvif->ap_sta_id; - if (vif->bss_conf.assoc) - data->sta_vif_state = SF_FULL_ON; - else - data->sta_vif_state = SF_INIT_OFF; - } -} - -/* - * Aging and idle timeouts for the different possible scenarios - * in default configuration - */ -static const -__le32 sf_full_timeout_def[SF_NUM_SCENARIO][SF_NUM_TIMEOUT_TYPES] = { - { - cpu_to_le32(SF_SINGLE_UNICAST_AGING_TIMER_DEF), - cpu_to_le32(SF_SINGLE_UNICAST_IDLE_TIMER_DEF) - }, - { - cpu_to_le32(SF_AGG_UNICAST_AGING_TIMER_DEF), - cpu_to_le32(SF_AGG_UNICAST_IDLE_TIMER_DEF) - }, - { - cpu_to_le32(SF_MCAST_AGING_TIMER_DEF), - cpu_to_le32(SF_MCAST_IDLE_TIMER_DEF) - }, - { - cpu_to_le32(SF_BA_AGING_TIMER_DEF), - cpu_to_le32(SF_BA_IDLE_TIMER_DEF) - }, - { - cpu_to_le32(SF_TX_RE_AGING_TIMER_DEF), - cpu_to_le32(SF_TX_RE_IDLE_TIMER_DEF) - }, -}; - -/* - * Aging and idle timeouts for the different possible scenarios - * in single BSS MAC configuration. - */ -static const __le32 sf_full_timeout[SF_NUM_SCENARIO][SF_NUM_TIMEOUT_TYPES] = { - { - cpu_to_le32(SF_SINGLE_UNICAST_AGING_TIMER), - cpu_to_le32(SF_SINGLE_UNICAST_IDLE_TIMER) - }, - { - cpu_to_le32(SF_AGG_UNICAST_AGING_TIMER), - cpu_to_le32(SF_AGG_UNICAST_IDLE_TIMER) - }, - { - cpu_to_le32(SF_MCAST_AGING_TIMER), - cpu_to_le32(SF_MCAST_IDLE_TIMER) - }, - { - cpu_to_le32(SF_BA_AGING_TIMER), - cpu_to_le32(SF_BA_IDLE_TIMER) - }, - { - cpu_to_le32(SF_TX_RE_AGING_TIMER), - cpu_to_le32(SF_TX_RE_IDLE_TIMER) - }, -}; - -static void iwl_mvm_fill_sf_command(struct iwl_mvm *mvm, - struct iwl_sf_cfg_cmd *sf_cmd, - struct ieee80211_sta *sta) -{ - int i, j, watermark; - - sf_cmd->watermark[SF_LONG_DELAY_ON] = cpu_to_le32(SF_W_MARK_SCAN); - - /* - * If we are in association flow - check antenna configuration - * capabilities of the AP station, and choose the watermark accordingly. - */ - if (sta) { - if (sta->ht_cap.ht_supported || sta->vht_cap.vht_supported) { - switch (sta->rx_nss) { - case 1: - watermark = SF_W_MARK_SISO; - break; - case 2: - watermark = SF_W_MARK_MIMO2; - break; - default: - watermark = SF_W_MARK_MIMO3; - break; - } - } else { - watermark = SF_W_MARK_LEGACY; - } - /* default watermark value for unassociated mode. */ - } else { - watermark = SF_W_MARK_MIMO2; - } - sf_cmd->watermark[SF_FULL_ON] = cpu_to_le32(watermark); - - for (i = 0; i < SF_NUM_SCENARIO; i++) { - for (j = 0; j < SF_NUM_TIMEOUT_TYPES; j++) { - sf_cmd->long_delay_timeouts[i][j] = - cpu_to_le32(SF_LONG_DELAY_AGING_TIMER); - } - } - - if (sta || IWL_UCODE_API(mvm->fw->ucode_ver) < 13) { - BUILD_BUG_ON(sizeof(sf_full_timeout) != - sizeof(__le32) * SF_NUM_SCENARIO * - SF_NUM_TIMEOUT_TYPES); - - memcpy(sf_cmd->full_on_timeouts, sf_full_timeout, - sizeof(sf_full_timeout)); - } else { - BUILD_BUG_ON(sizeof(sf_full_timeout_def) != - sizeof(__le32) * SF_NUM_SCENARIO * - SF_NUM_TIMEOUT_TYPES); - - memcpy(sf_cmd->full_on_timeouts, sf_full_timeout_def, - sizeof(sf_full_timeout_def)); - } - -} - -static int iwl_mvm_sf_config(struct iwl_mvm *mvm, u8 sta_id, - enum iwl_sf_state new_state) -{ - struct iwl_sf_cfg_cmd sf_cmd = { - .state = cpu_to_le32(SF_FULL_ON), - }; - struct ieee80211_sta *sta; - int ret = 0; - - if (IWL_UCODE_API(mvm->fw->ucode_ver) < 13) - sf_cmd.state = cpu_to_le32(new_state); - - if (mvm->cfg->disable_dummy_notification) - sf_cmd.state |= cpu_to_le32(SF_CFG_DUMMY_NOTIF_OFF); - - /* - * If an associated AP sta changed its antenna configuration, the state - * will remain FULL_ON but SF parameters need to be reconsidered. - */ - if (new_state != SF_FULL_ON && mvm->sf_state == new_state) - return 0; - - switch (new_state) { - case SF_UNINIT: - if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 13) - iwl_mvm_fill_sf_command(mvm, &sf_cmd, NULL); - break; - case SF_FULL_ON: - if (sta_id == IWL_MVM_STATION_COUNT) { - IWL_ERR(mvm, - "No station: Cannot switch SF to FULL_ON\n"); - return -EINVAL; - } - rcu_read_lock(); - sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); - if (IS_ERR_OR_NULL(sta)) { - IWL_ERR(mvm, "Invalid station id\n"); - rcu_read_unlock(); - return -EINVAL; - } - iwl_mvm_fill_sf_command(mvm, &sf_cmd, sta); - rcu_read_unlock(); - break; - case SF_INIT_OFF: - iwl_mvm_fill_sf_command(mvm, &sf_cmd, NULL); - break; - default: - WARN_ONCE(1, "Invalid state: %d. not sending Smart Fifo cmd\n", - new_state); - return -EINVAL; - } - - ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_SF_CFG_CMD, CMD_ASYNC, - sizeof(sf_cmd), &sf_cmd); - if (!ret) - mvm->sf_state = new_state; - - return ret; -} - -/* - * Update Smart fifo: - * Count bound interfaces that are not to be removed, ignoring p2p devices, - * and set new state accordingly. - */ -int iwl_mvm_sf_update(struct iwl_mvm *mvm, struct ieee80211_vif *changed_vif, - bool remove_vif) -{ - enum iwl_sf_state new_state; - u8 sta_id = IWL_MVM_STATION_COUNT; - struct iwl_mvm_vif *mvmvif = NULL; - struct iwl_mvm_active_iface_iterator_data data = { - .ignore_vif = changed_vif, - .sta_vif_state = SF_UNINIT, - .sta_vif_ap_sta_id = IWL_MVM_STATION_COUNT, - }; - - /* - * Ignore the call if we are in HW Restart flow, or if the handled - * vif is a p2p device. - */ - if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || - (changed_vif && changed_vif->type == NL80211_IFTYPE_P2P_DEVICE)) - return 0; - - ieee80211_iterate_active_interfaces_atomic(mvm->hw, - IEEE80211_IFACE_ITER_NORMAL, - iwl_mvm_bound_iface_iterator, - &data); - - /* If changed_vif exists and is not to be removed, add to the count */ - if (changed_vif && !remove_vif) - data.num_active_macs++; - - switch (data.num_active_macs) { - case 0: - /* If there are no active macs - change state to SF_INIT_OFF */ - new_state = SF_INIT_OFF; - break; - case 1: - if (remove_vif) { - /* The one active mac left is of type station - * and we filled the relevant data during iteration - */ - new_state = data.sta_vif_state; - sta_id = data.sta_vif_ap_sta_id; - } else { - if (WARN_ON(!changed_vif)) - return -EINVAL; - if (changed_vif->type != NL80211_IFTYPE_STATION) { - new_state = SF_UNINIT; - } else if (changed_vif->bss_conf.assoc && - changed_vif->bss_conf.dtim_period) { - mvmvif = iwl_mvm_vif_from_mac80211(changed_vif); - sta_id = mvmvif->ap_sta_id; - new_state = SF_FULL_ON; - } else { - new_state = SF_INIT_OFF; - } - } - break; - default: - /* If there are multiple active macs - change to SF_UNINIT */ - new_state = SF_UNINIT; - } - return iwl_mvm_sf_config(mvm, sta_id, new_state); -} |