if_iwm_power.c revision 300248
156893Sfenner/* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */ 2127668Sbms 3127668Sbms/* 456893Sfenner * Copyright (c) 2014 genua mbh <info@genua.de> 556893Sfenner * Copyright (c) 2014 Fixup Software Ltd. 656893Sfenner * 756893Sfenner * Permission to use, copy, modify, and distribute this software for any 856893Sfenner * purpose with or without fee is hereby granted, provided that the above 956893Sfenner * copyright notice and this permission notice appear in all copies. 1056893Sfenner * 1156893Sfenner * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 1256893Sfenner * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 1356893Sfenner * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 1456893Sfenner * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15127668Sbms * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 1656893Sfenner * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 1756893Sfenner * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 1856893Sfenner */ 1956893Sfenner 20127668Sbms/*- 2156893Sfenner * Based on BSD-licensed source modules in the Linux iwlwifi driver, 2256893Sfenner * which were used as the reference documentation for this implementation. 2356893Sfenner * 24127668Sbms * Driver version we are currently based off of is 25190207Srpaulo * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd) 2656893Sfenner * 2756893Sfenner *********************************************************************** 2856893Sfenner * 2956893Sfenner * This file is provided under a dual BSD/GPLv2 license. When using or 3056893Sfenner * redistributing this file, you may do so under either license. 3156893Sfenner * 3298524Sfenner * GPL LICENSE SUMMARY 3398524Sfenner * 34127668Sbms * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. 3556893Sfenner * 3656893Sfenner * This program is free software; you can redistribute it and/or modify 3756893Sfenner * it under the terms of version 2 of the GNU General Public License as 3856893Sfenner * published by the Free Software Foundation. 3956893Sfenner * 4056893Sfenner * This program is distributed in the hope that it will be useful, but 4175115Sfenner * WITHOUT ANY WARRANTY; without even the implied warranty of 4275115Sfenner * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 4356893Sfenner * General Public License for more details. 44127668Sbms * 4556893Sfenner * You should have received a copy of the GNU General Public License 4656893Sfenner * along with this program; if not, write to the Free Software 4775115Sfenner * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 4875115Sfenner * USA 4975115Sfenner * 5075115Sfenner * The full GNU General Public License is included in this distribution 5175115Sfenner * in the file called COPYING. 5275115Sfenner * 5356893Sfenner * Contact Information: 5456893Sfenner * Intel Linux Wireless <ilw@linux.intel.com> 55127668Sbms * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 5656893Sfenner * 5798524Sfenner * 5898524Sfenner * BSD LICENSE 5998524Sfenner * 6098524Sfenner * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. 6156893Sfenner * All rights reserved. 6256893Sfenner * 6356893Sfenner * Redistribution and use in source and binary forms, with or without 64127668Sbms * modification, are permitted provided that the following conditions 65127668Sbms * are met: 66146773Ssam * 6756893Sfenner * * Redistributions of source code must retain the above copyright 6856893Sfenner * notice, this list of conditions and the following disclaimer. 69127668Sbms * * Redistributions in binary form must reproduce the above copyright 70127668Sbms * notice, this list of conditions and the following disclaimer in 7156893Sfenner * the documentation and/or other materials provided with the 7298524Sfenner * distribution. 7398524Sfenner * * Neither the name Intel Corporation nor the names of its 7456893Sfenner * contributors may be used to endorse or promote products derived 7556893Sfenner * from this software without specific prior written permission. 7656893Sfenner * 7756893Sfenner * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 78127668Sbms * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 7956893Sfenner * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 8056893Sfenner * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 8156893Sfenner * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 82127668Sbms * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 8356893Sfenner * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 8498524Sfenner * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 8598524Sfenner * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 8698524Sfenner * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 8798524Sfenner * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 8875115Sfenner */ 8998524Sfenner#include <sys/cdefs.h> 9056893Sfenner__FBSDID("$FreeBSD: head/sys/dev/iwm/if_iwm_power.c 300248 2016-05-19 23:31:00Z avos $"); 9156893Sfenner 92127668Sbms#include "opt_wlan.h" 9356893Sfenner 9456893Sfenner#include <sys/param.h> 9556893Sfenner#include <sys/bus.h> 9656893Sfenner#include <sys/conf.h> 97162017Ssam#include <sys/endian.h> 9856893Sfenner#include <sys/firmware.h> 9956893Sfenner#include <sys/kernel.h> 10098524Sfenner#include <sys/malloc.h> 10198524Sfenner#include <sys/mbuf.h> 10298524Sfenner#include <sys/mutex.h> 10398524Sfenner#include <sys/module.h> 104146773Ssam#include <sys/proc.h> 10556893Sfenner#include <sys/rman.h> 10698524Sfenner#include <sys/socket.h> 107127668Sbms#include <sys/sockio.h> 10856893Sfenner#include <sys/sysctl.h> 109146773Ssam#include <sys/linker.h> 110146773Ssam 111146773Ssam#include <machine/bus.h> 112146773Ssam#include <machine/endian.h> 113146773Ssam#include <machine/resource.h> 114146773Ssam 115146773Ssam#include <dev/pci/pcivar.h> 116146773Ssam#include <dev/pci/pcireg.h> 117 118#include <net/bpf.h> 119 120#include <net/if.h> 121#include <net/if_var.h> 122#include <net/if_arp.h> 123#include <net/if_dl.h> 124#include <net/if_media.h> 125#include <net/if_types.h> 126 127#include <netinet/in.h> 128#include <netinet/in_systm.h> 129#include <netinet/if_ether.h> 130#include <netinet/ip.h> 131 132#include <net80211/ieee80211_var.h> 133#include <net80211/ieee80211_regdomain.h> 134#include <net80211/ieee80211_ratectl.h> 135#include <net80211/ieee80211_radiotap.h> 136 137#include <dev/iwm/if_iwmreg.h> 138#include <dev/iwm/if_iwmvar.h> 139#include <dev/iwm/if_iwm_debug.h> 140#include <dev/iwm/if_iwm_util.h> 141#include <dev/iwm/if_iwm_power.h> 142 143/* 144 * BEGIN mvm/power.c 145 */ 146 147#define IWM_POWER_KEEP_ALIVE_PERIOD_SEC 25 148 149static int 150iwm_mvm_beacon_filter_send_cmd(struct iwm_softc *sc, 151 struct iwm_beacon_filter_cmd *cmd) 152{ 153 int ret; 154 155 ret = iwm_mvm_send_cmd_pdu(sc, IWM_REPLY_BEACON_FILTERING_CMD, 156 IWM_CMD_SYNC, sizeof(struct iwm_beacon_filter_cmd), cmd); 157 158 if (!ret) { 159 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 160 "ba_enable_beacon_abort is: %d\n", 161 le32toh(cmd->ba_enable_beacon_abort)); 162 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 163 "ba_escape_timer is: %d\n", 164 le32toh(cmd->ba_escape_timer)); 165 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 166 "bf_debug_flag is: %d\n", 167 le32toh(cmd->bf_debug_flag)); 168 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 169 "bf_enable_beacon_filter is: %d\n", 170 le32toh(cmd->bf_enable_beacon_filter)); 171 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 172 "bf_energy_delta is: %d\n", 173 le32toh(cmd->bf_energy_delta)); 174 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 175 "bf_escape_timer is: %d\n", 176 le32toh(cmd->bf_escape_timer)); 177 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 178 "bf_roaming_energy_delta is: %d\n", 179 le32toh(cmd->bf_roaming_energy_delta)); 180 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 181 "bf_roaming_state is: %d\n", 182 le32toh(cmd->bf_roaming_state)); 183 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 184 "bf_temp_threshold is: %d\n", 185 le32toh(cmd->bf_temp_threshold)); 186 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 187 "bf_temp_fast_filter is: %d\n", 188 le32toh(cmd->bf_temp_fast_filter)); 189 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 190 "bf_temp_slow_filter is: %d\n", 191 le32toh(cmd->bf_temp_slow_filter)); 192 } 193 return ret; 194} 195 196static void 197iwm_mvm_beacon_filter_set_cqm_params(struct iwm_softc *sc, 198 struct iwm_node *in, struct iwm_beacon_filter_cmd *cmd) 199{ 200 cmd->ba_enable_beacon_abort = htole32(sc->sc_bf.ba_enabled); 201} 202 203static int 204iwm_mvm_update_beacon_abort(struct iwm_softc *sc, struct iwm_node *in, 205 int enable) 206{ 207 struct iwm_beacon_filter_cmd cmd = { 208 IWM_BF_CMD_CONFIG_DEFAULTS, 209 .bf_enable_beacon_filter = htole32(1), 210 .ba_enable_beacon_abort = htole32(enable), 211 }; 212 213 if (!sc->sc_bf.bf_enabled) 214 return 0; 215 216 sc->sc_bf.ba_enabled = enable; 217 iwm_mvm_beacon_filter_set_cqm_params(sc, in, &cmd); 218 return iwm_mvm_beacon_filter_send_cmd(sc, &cmd); 219} 220 221static void 222iwm_mvm_power_log(struct iwm_softc *sc, struct iwm_mac_power_cmd *cmd) 223{ 224 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 225 "Sending power table command on mac id 0x%X for " 226 "power level %d, flags = 0x%X\n", 227 cmd->id_and_color, IWM_POWER_SCHEME_CAM, le16toh(cmd->flags)); 228 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 229 "Keep alive = %u sec\n", le16toh(cmd->keep_alive_seconds)); 230 231 if (!(cmd->flags & htole16(IWM_POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) { 232 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 233 "Disable power management\n"); 234 return; 235 } 236 KASSERT(0, ("unhandled power management")); 237 238#if 0 239 DPRINTF(mvm, "Rx timeout = %u usec\n", 240 le32_to_cpu(cmd->rx_data_timeout)); 241 DPRINTF(mvm, "Tx timeout = %u usec\n", 242 le32_to_cpu(cmd->tx_data_timeout)); 243 if (cmd->flags & cpu_to_le16(IWM_POWER_FLAGS_SKIP_OVER_DTIM_MSK)) 244 DPRINTF(mvm, "DTIM periods to skip = %u\n", 245 cmd->skip_dtim_periods); 246 if (cmd->flags & cpu_to_le16(IWM_POWER_FLAGS_LPRX_ENA_MSK)) 247 DPRINTF(mvm, "LP RX RSSI threshold = %u\n", 248 cmd->lprx_rssi_threshold); 249 if (cmd->flags & cpu_to_le16(IWM_POWER_FLAGS_ADVANCE_PM_ENA_MSK)) { 250 DPRINTF(mvm, "uAPSD enabled\n"); 251 DPRINTF(mvm, "Rx timeout (uAPSD) = %u usec\n", 252 le32_to_cpu(cmd->rx_data_timeout_uapsd)); 253 DPRINTF(mvm, "Tx timeout (uAPSD) = %u usec\n", 254 le32_to_cpu(cmd->tx_data_timeout_uapsd)); 255 DPRINTF(mvm, "QNDP TID = %d\n", cmd->qndp_tid); 256 DPRINTF(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags); 257 DPRINTF(mvm, "Max SP = %d\n", cmd->uapsd_max_sp); 258 } 259#endif 260} 261 262static void 263iwm_mvm_power_build_cmd(struct iwm_softc *sc, struct iwm_node *in, 264 struct iwm_mac_power_cmd *cmd) 265{ 266 struct ieee80211_node *ni = &in->in_ni; 267 int dtimper, dtimper_msec; 268 int keep_alive; 269 struct ieee80211com *ic = &sc->sc_ic; 270 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 271 272 cmd->id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(IWM_DEFAULT_MACID, 273 IWM_DEFAULT_COLOR)); 274 dtimper = vap->iv_dtim_period ?: 1; 275 276 /* 277 * Regardless of power management state the driver must set 278 * keep alive period. FW will use it for sending keep alive NDPs 279 * immediately after association. Check that keep alive period 280 * is at least 3 * DTIM 281 */ 282 dtimper_msec = dtimper * ni->ni_intval; 283 keep_alive 284 = MAX(3 * dtimper_msec, 1000 * IWM_POWER_KEEP_ALIVE_PERIOD_SEC); 285 keep_alive = roundup(keep_alive, 1000) / 1000; 286 cmd->keep_alive_seconds = htole16(keep_alive); 287} 288 289int 290iwm_mvm_power_mac_update_mode(struct iwm_softc *sc, struct iwm_node *in) 291{ 292 int ret; 293 int ba_enable; 294 struct iwm_mac_power_cmd cmd; 295 296 memset(&cmd, 0, sizeof(cmd)); 297 298 iwm_mvm_power_build_cmd(sc, in, &cmd); 299 iwm_mvm_power_log(sc, &cmd); 300 301 if ((ret = iwm_mvm_send_cmd_pdu(sc, IWM_MAC_PM_POWER_TABLE, 302 IWM_CMD_SYNC, sizeof(cmd), &cmd)) != 0) 303 return ret; 304 305 ba_enable = !!(cmd.flags & 306 htole16(IWM_POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)); 307 return iwm_mvm_update_beacon_abort(sc, in, ba_enable); 308} 309 310int 311iwm_mvm_power_update_device(struct iwm_softc *sc) 312{ 313 struct iwm_device_power_cmd cmd = { 314 .flags = htole16(IWM_DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK), 315 }; 316 317 if (!(sc->sc_capaflags & IWM_UCODE_TLV_FLAGS_DEVICE_PS_CMD)) 318 return 0; 319 320 cmd.flags |= htole16(IWM_DEVICE_POWER_FLAGS_CAM_MSK); 321 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD, 322 "Sending device power command with flags = 0x%X\n", cmd.flags); 323 324 return iwm_mvm_send_cmd_pdu(sc, 325 IWM_POWER_TABLE_CMD, IWM_CMD_SYNC, sizeof(cmd), &cmd); 326} 327 328int 329iwm_mvm_enable_beacon_filter(struct iwm_softc *sc, struct iwm_node *in) 330{ 331 struct iwm_beacon_filter_cmd cmd = { 332 IWM_BF_CMD_CONFIG_DEFAULTS, 333 .bf_enable_beacon_filter = htole32(1), 334 }; 335 int ret; 336 337 iwm_mvm_beacon_filter_set_cqm_params(sc, in, &cmd); 338 ret = iwm_mvm_beacon_filter_send_cmd(sc, &cmd); 339 340 if (ret == 0) 341 sc->sc_bf.bf_enabled = 1; 342 343 return ret; 344} 345 346int 347iwm_mvm_disable_beacon_filter(struct iwm_softc *sc) 348{ 349 struct iwm_beacon_filter_cmd cmd; 350 int ret; 351 352 memset(&cmd, 0, sizeof(cmd)); 353 if ((sc->sc_capaflags & IWM_UCODE_TLV_FLAGS_BF_UPDATED) == 0) 354 return 0; 355 356 ret = iwm_mvm_beacon_filter_send_cmd(sc, &cmd); 357 if (ret == 0) 358 sc->sc_bf.bf_enabled = 0; 359 360 return ret; 361} 362 363#if 0 364static int 365iwm_mvm_update_beacon_filter(struct iwm_softc *sc, struct iwm_node *in) 366{ 367 if (!sc->sc_bf.bf_enabled) 368 return 0; 369 370 return iwm_mvm_enable_beacon_filter(sc, in); 371} 372#endif 373