Qiwei Cai | e689a26 | 2018-07-26 15:50:22 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2012-2018 The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * Permission to use, copy, modify, and/or distribute this software for |
| 5 | * any purpose with or without fee is hereby granted, provided that the |
| 6 | * above copyright notice and this permission notice appear in all |
| 7 | * copies. |
| 8 | * |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 10 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 11 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 12 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 13 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 14 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 15 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 16 | * PERFORMANCE OF THIS SOFTWARE. |
| 17 | */ |
| 18 | |
| 19 | /** |
| 20 | * DOC: wlan_hdd_active_tos.c |
| 21 | * |
| 22 | * WLAN active tos functions |
| 23 | * |
| 24 | */ |
| 25 | |
| 26 | #include <wlan_hdd_includes.h> |
| 27 | #include <linux/netdevice.h> |
| 28 | #include <linux/skbuff.h> |
| 29 | #include <linux/etherdevice.h> |
| 30 | #include <linux/if_ether.h> |
| 31 | #include <wlan_hdd_active_tos.h> |
Krunal Soni | e71838d | 2018-09-27 10:45:05 -0700 | [diff] [blame] | 32 | #include "wlan_policy_mgr_ucfg.h" |
Harprit Chhabada | 4691a47 | 2018-12-07 11:22:48 -0800 | [diff] [blame^] | 33 | #include "wlan_scan_ucfg_api.h" |
Qiwei Cai | e689a26 | 2018-07-26 15:50:22 +0800 | [diff] [blame] | 34 | |
| 35 | /** |
| 36 | * tos - Type of service requested by the application |
| 37 | * TOS_BK: Back ground traffic |
| 38 | * TOS_BE: Best effort traffic |
| 39 | * TOS_VI: Video traffic |
| 40 | * TOS_VO: Voice traffic |
| 41 | */ |
| 42 | enum tos { |
| 43 | TOS_BK = 0, |
| 44 | TOS_BE = 1, |
| 45 | TOS_VI = 2, |
| 46 | TOS_VO = 3, |
| 47 | }; |
| 48 | |
| 49 | #define HDD_AC_BK_BIT 1 |
| 50 | #define HDD_AC_BE_BIT 2 |
| 51 | #define HDD_AC_VI_BIT 4 |
| 52 | #define HDD_AC_VO_BIT 8 |
| 53 | |
| 54 | #define HDD_MAX_OFF_CHAN_TIME_FOR_VO 20 |
| 55 | #define HDD_MAX_OFF_CHAN_TIME_FOR_VI 20 |
| 56 | #define HDD_MAX_OFF_CHAN_TIME_FOR_BE 40 |
| 57 | #define HDD_MAX_OFF_CHAN_TIME_FOR_BK 40 |
| 58 | |
| 59 | #define HDD_MAX_AC 4 |
| 60 | #define HDD_MAX_OFF_CHAN_ENTRIES 2 |
| 61 | |
| 62 | #define HDD_AC_BIT_INDX 0 |
| 63 | #define HDD_DWELL_TIME_INDX 1 |
| 64 | |
| 65 | static int limit_off_chan_tbl[HDD_MAX_AC][HDD_MAX_OFF_CHAN_ENTRIES] = { |
| 66 | { HDD_AC_BK_BIT, HDD_MAX_OFF_CHAN_TIME_FOR_BK }, |
| 67 | { HDD_AC_BE_BIT, HDD_MAX_OFF_CHAN_TIME_FOR_BE }, |
| 68 | { HDD_AC_VI_BIT, HDD_MAX_OFF_CHAN_TIME_FOR_VI }, |
| 69 | { HDD_AC_VO_BIT, HDD_MAX_OFF_CHAN_TIME_FOR_VO }, |
| 70 | }; |
| 71 | |
| 72 | static const struct nla_policy |
| 73 | wlan_hdd_set_limit_off_channel_param_policy |
| 74 | [QCA_WLAN_VENDOR_ATTR_ACTIVE_TOS_MAX + 1] = { |
| 75 | [QCA_WLAN_VENDOR_ATTR_ACTIVE_TOS] = {.type = NLA_U8 }, |
| 76 | [QCA_WLAN_VENDOR_ATTR_ACTIVE_TOS_START] = {.type = NLA_U8 }, |
| 77 | }; |
| 78 | |
| 79 | /** |
| 80 | * hdd_set_limit_off_chan_for_tos() - set limit off-channel command parameters |
| 81 | * @adapter: HDD adapter |
| 82 | * @tos: type of service |
| 83 | * @is_tos_active: status of the traffic |
| 84 | * |
| 85 | * Return: 0 on success and non zero value on failure |
| 86 | */ |
| 87 | |
| 88 | static int |
| 89 | hdd_set_limit_off_chan_for_tos(struct hdd_adapter *adapter, |
| 90 | enum tos tos, |
| 91 | bool is_tos_active) |
| 92 | { |
| 93 | int ac_bit; |
| 94 | struct hdd_context *hdd_ctx; |
| 95 | uint32_t max_off_chan_time = 0; |
| 96 | QDF_STATUS status; |
| 97 | int ret; |
Krunal Soni | e71838d | 2018-09-27 10:45:05 -0700 | [diff] [blame] | 98 | uint8_t def_sys_pref = 0; |
Harprit Chhabada | 4691a47 | 2018-12-07 11:22:48 -0800 | [diff] [blame^] | 99 | uint32_t rest_conc_time; |
Qiwei Cai | e689a26 | 2018-07-26 15:50:22 +0800 | [diff] [blame] | 100 | |
| 101 | hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| 102 | ret = wlan_hdd_validate_context(hdd_ctx); |
| 103 | |
| 104 | if (ret < 0) |
| 105 | return ret; |
Krunal Soni | e71838d | 2018-09-27 10:45:05 -0700 | [diff] [blame] | 106 | ucfg_policy_mgr_get_sys_pref(hdd_ctx->psoc, |
| 107 | &def_sys_pref); |
Qiwei Cai | e689a26 | 2018-07-26 15:50:22 +0800 | [diff] [blame] | 108 | |
| 109 | ac_bit = limit_off_chan_tbl[tos][HDD_AC_BIT_INDX]; |
| 110 | |
| 111 | if (is_tos_active) |
| 112 | adapter->active_ac |= ac_bit; |
| 113 | else |
| 114 | adapter->active_ac &= ~ac_bit; |
| 115 | |
| 116 | if (adapter->active_ac) { |
| 117 | if (adapter->active_ac & HDD_AC_VO_BIT) { |
| 118 | max_off_chan_time = |
| 119 | limit_off_chan_tbl[TOS_VO][HDD_DWELL_TIME_INDX]; |
Dustin Brown | 76cd293 | 2018-09-11 16:03:05 -0700 | [diff] [blame] | 120 | policy_mgr_set_cur_conc_system_pref(hdd_ctx->psoc, |
Qiwei Cai | e689a26 | 2018-07-26 15:50:22 +0800 | [diff] [blame] | 121 | PM_LATENCY); |
| 122 | } else if (adapter->active_ac & HDD_AC_VI_BIT) { |
| 123 | max_off_chan_time = |
| 124 | limit_off_chan_tbl[TOS_VI][HDD_DWELL_TIME_INDX]; |
Dustin Brown | 76cd293 | 2018-09-11 16:03:05 -0700 | [diff] [blame] | 125 | policy_mgr_set_cur_conc_system_pref(hdd_ctx->psoc, |
Qiwei Cai | e689a26 | 2018-07-26 15:50:22 +0800 | [diff] [blame] | 126 | PM_LATENCY); |
| 127 | } else { |
| 128 | /*ignore this command if only BE/BK is active */ |
| 129 | is_tos_active = false; |
Dustin Brown | 76cd293 | 2018-09-11 16:03:05 -0700 | [diff] [blame] | 130 | policy_mgr_set_cur_conc_system_pref(hdd_ctx->psoc, |
Krunal Soni | e71838d | 2018-09-27 10:45:05 -0700 | [diff] [blame] | 131 | def_sys_pref); |
Qiwei Cai | e689a26 | 2018-07-26 15:50:22 +0800 | [diff] [blame] | 132 | } |
| 133 | } else { |
| 134 | /* No active tos */ |
Dustin Brown | 76cd293 | 2018-09-11 16:03:05 -0700 | [diff] [blame] | 135 | policy_mgr_set_cur_conc_system_pref(hdd_ctx->psoc, |
Krunal Soni | e71838d | 2018-09-27 10:45:05 -0700 | [diff] [blame] | 136 | def_sys_pref); |
Qiwei Cai | e689a26 | 2018-07-26 15:50:22 +0800 | [diff] [blame] | 137 | } |
| 138 | |
Harprit Chhabada | 4691a47 | 2018-12-07 11:22:48 -0800 | [diff] [blame^] | 139 | ucfg_scan_cfg_get_conc_max_resttime(hdd_ctx->psoc, &rest_conc_time); |
Qiwei Cai | e689a26 | 2018-07-26 15:50:22 +0800 | [diff] [blame] | 140 | status = sme_send_limit_off_channel_params(hdd_ctx->mac_handle, |
| 141 | adapter->session_id, |
| 142 | is_tos_active, |
| 143 | max_off_chan_time, |
Harprit Chhabada | 4691a47 | 2018-12-07 11:22:48 -0800 | [diff] [blame^] | 144 | rest_conc_time, |
Qiwei Cai | e689a26 | 2018-07-26 15:50:22 +0800 | [diff] [blame] | 145 | true); |
| 146 | if (!QDF_IS_STATUS_SUCCESS(status)) { |
| 147 | hdd_err("failed to set limit off chan params"); |
| 148 | ret = -EINVAL; |
| 149 | } |
| 150 | |
| 151 | return ret; |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * __wlan_hdd_cfg80211_set_limit_offchan_param() - set limit off-channel cmd |
| 156 | * parameters |
| 157 | * @wiphy: pointer to wireless wiphy structure. |
| 158 | * @wdev: pointer to wireless_dev structure. |
| 159 | * @data: pointer to limit off-channel command parameters. |
| 160 | * @data_len: the length in byte of limit off-channel command parameters. |
| 161 | * |
| 162 | * This is called when application wants to limit the off channel time due to |
| 163 | * active voip traffic. |
| 164 | * |
| 165 | * Return: An error code or 0 on success. |
| 166 | */ |
| 167 | static int |
| 168 | __wlan_hdd_cfg80211_set_limit_offchan_param(struct wiphy *wiphy, |
| 169 | struct wireless_dev *wdev, |
| 170 | const void *data, |
| 171 | int data_len) |
| 172 | { |
| 173 | struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_ACTIVE_TOS_MAX + 1]; |
| 174 | struct net_device *dev = wdev->netdev; |
| 175 | struct hdd_adapter *adapter = WLAN_HDD_GET_PRIV_PTR(dev); |
| 176 | struct hdd_context *hdd_ctx = wiphy_priv(wiphy); |
| 177 | int ret = 0; |
| 178 | uint8_t tos; |
| 179 | uint8_t tos_status; |
| 180 | |
| 181 | hdd_enter(); |
| 182 | |
| 183 | ret = wlan_hdd_validate_context(hdd_ctx); |
| 184 | if (ret < 0) |
| 185 | return ret; |
| 186 | |
| 187 | if (wlan_cfg80211_nla_parse(tb, QCA_WLAN_VENDOR_ATTR_ACTIVE_TOS_MAX, |
| 188 | data, data_len, |
| 189 | wlan_hdd_set_limit_off_channel_param_policy)) { |
| 190 | hdd_err("Invalid ATTR"); |
| 191 | return -EINVAL; |
| 192 | } |
| 193 | |
| 194 | if (!tb[QCA_WLAN_VENDOR_ATTR_ACTIVE_TOS]) { |
| 195 | hdd_err("attr tos failed"); |
| 196 | goto fail; |
| 197 | } |
| 198 | |
| 199 | tos = nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACTIVE_TOS]); |
| 200 | if (tos >= HDD_MAX_AC) { |
| 201 | hdd_err("tos value %d exceeded Max value %d", |
| 202 | tos, HDD_MAX_AC); |
| 203 | goto fail; |
| 204 | } |
| 205 | hdd_debug("tos %d", tos); |
| 206 | |
| 207 | if (!tb[QCA_WLAN_VENDOR_ATTR_ACTIVE_TOS_START]) { |
| 208 | hdd_err("attr tos active failed"); |
| 209 | goto fail; |
| 210 | } |
| 211 | tos_status = nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACTIVE_TOS_START]); |
| 212 | |
| 213 | hdd_debug("tos status %d", tos_status); |
| 214 | ret = hdd_set_limit_off_chan_for_tos(adapter, tos, tos_status); |
| 215 | |
| 216 | fail: |
| 217 | return ret; |
| 218 | } |
| 219 | |
| 220 | int wlan_hdd_cfg80211_set_limit_offchan_param(struct wiphy *wiphy, |
| 221 | struct wireless_dev *wdev, |
| 222 | const void *data, int data_len) |
| 223 | |
| 224 | { |
| 225 | int ret; |
| 226 | |
| 227 | cds_ssr_protect(__func__); |
| 228 | ret = __wlan_hdd_cfg80211_set_limit_offchan_param(wiphy, wdev, data, |
| 229 | data_len); |
| 230 | cds_ssr_unprotect(__func__); |
| 231 | |
| 232 | return ret; |
| 233 | } |
| 234 | |