1 /* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */ 2 3 /* 4 * Copyright (c) 2014 genua mbh <info@genua.de> 5 * Copyright (c) 2014 Fixup Software Ltd. 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /*- 21 * Based on BSD-licensed source modules in the Linux iwlwifi driver, 22 * which were used as the reference documentation for this implementation. 23 * 24 * Driver version we are currently based off of is 25 * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd) 26 * 27 *********************************************************************** 28 * 29 * This file is provided under a dual BSD/GPLv2 license. When using or 30 * redistributing this file, you may do so under either license. 31 * 32 * GPL LICENSE SUMMARY 33 * 34 * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. 35 * 36 * This program is free software; you can redistribute it and/or modify 37 * it under the terms of version 2 of the GNU General Public License as 38 * published by the Free Software Foundation. 39 * 40 * This program is distributed in the hope that it will be useful, but 41 * WITHOUT ANY WARRANTY; without even the implied warranty of 42 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 43 * General Public License for more details. 44 * 45 * You should have received a copy of the GNU General Public License 46 * along with this program; if not, write to the Free Software 47 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 48 * USA 49 * 50 * The full GNU General Public License is included in this distribution 51 * in the file called COPYING. 52 * 53 * Contact Information: 54 * Intel Linux Wireless <ilw@linux.intel.com> 55 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 56 * 57 * 58 * BSD LICENSE 59 * 60 * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. 61 * All rights reserved. 62 * 63 * Redistribution and use in source and binary forms, with or without 64 * modification, are permitted provided that the following conditions 65 * are met: 66 * 67 * * Redistributions of source code must retain the above copyright 68 * notice, this list of conditions and the following disclaimer. 69 * * Redistributions in binary form must reproduce the above copyright 70 * notice, this list of conditions and the following disclaimer in 71 * the documentation and/or other materials provided with the 72 * distribution. 73 * * Neither the name Intel Corporation nor the names of its 74 * contributors may be used to endorse or promote products derived 75 * from this software without specific prior written permission. 76 * 77 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 78 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 79 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 80 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 81 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 82 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 83 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 84 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 85 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 86 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 87 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 88 */ 89 90 /*- 91 * Copyright (c) 2007-2010 Damien Bergamini <damien.bergamini@free.fr> 92 * 93 * Permission to use, copy, modify, and distribute this software for any 94 * purpose with or without fee is hereby granted, provided that the above 95 * copyright notice and this permission notice appear in all copies. 96 * 97 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 98 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 99 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 100 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 101 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 102 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 103 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 104 */ 105 #include <sys/cdefs.h> 106 __FBSDID("$FreeBSD$"); 107 108 #include "opt_wlan.h" 109 #include "opt_iwm.h" 110 111 #include <sys/param.h> 112 #include <sys/bus.h> 113 #include <sys/conf.h> 114 #include <sys/endian.h> 115 #include <sys/firmware.h> 116 #include <sys/kernel.h> 117 #include <sys/malloc.h> 118 #include <sys/mbuf.h> 119 #include <sys/mutex.h> 120 #include <sys/module.h> 121 #include <sys/proc.h> 122 #include <sys/rman.h> 123 #include <sys/socket.h> 124 #include <sys/sockio.h> 125 #include <sys/sysctl.h> 126 #include <sys/linker.h> 127 128 #include <machine/bus.h> 129 #include <machine/endian.h> 130 #include <machine/resource.h> 131 132 #include <dev/pci/pcivar.h> 133 #include <dev/pci/pcireg.h> 134 135 #include <net/bpf.h> 136 137 #include <net/if.h> 138 #include <net/if_var.h> 139 #include <net/if_arp.h> 140 #include <net/if_dl.h> 141 #include <net/if_media.h> 142 #include <net/if_types.h> 143 144 #include <netinet/in.h> 145 #include <netinet/in_systm.h> 146 #include <netinet/if_ether.h> 147 #include <netinet/ip.h> 148 149 #include <net80211/ieee80211_var.h> 150 #include <net80211/ieee80211_regdomain.h> 151 #include <net80211/ieee80211_ratectl.h> 152 #include <net80211/ieee80211_radiotap.h> 153 154 #include <dev/iwm/if_iwmreg.h> 155 #include <dev/iwm/if_iwmvar.h> 156 #include <dev/iwm/if_iwm_debug.h> 157 #include <dev/iwm/if_iwm_util.h> 158 #include <dev/iwm/if_iwm_mac_ctxt.h> 159 160 /* 161 * BEGIN mvm/mac-ctxt.c 162 */ 163 164 const uint8_t iwm_mvm_ac_to_tx_fifo[] = { 165 IWM_MVM_TX_FIFO_BE, 166 IWM_MVM_TX_FIFO_BK, 167 IWM_MVM_TX_FIFO_VI, 168 IWM_MVM_TX_FIFO_VO, 169 }; 170 171 static void 172 iwm_mvm_ack_rates(struct iwm_softc *sc, int is2ghz, 173 int *cck_rates, int *ofdm_rates, struct iwm_node *in) 174 { 175 int lowest_present_ofdm = 100; 176 int lowest_present_cck = 100; 177 uint8_t cck = 0; 178 uint8_t ofdm = 0; 179 int i; 180 struct ieee80211_rateset *rs = &in->in_ni.ni_rates; 181 182 if (is2ghz) { 183 for (i = IWM_FIRST_CCK_RATE; i <= IWM_LAST_CCK_RATE; i++) { 184 if ((iwm_ridx2rate(rs, i) & IEEE80211_RATE_BASIC) == 0) 185 continue; 186 cck |= (1 << i); 187 if (lowest_present_cck > i) 188 lowest_present_cck = i; 189 } 190 } 191 for (i = IWM_FIRST_OFDM_RATE; i <= IWM_LAST_NON_HT_RATE; i++) { 192 if ((iwm_ridx2rate(rs, i) & IEEE80211_RATE_BASIC) == 0) 193 continue; 194 ofdm |= (1 << (i - IWM_FIRST_OFDM_RATE)); 195 if (lowest_present_ofdm > i) 196 lowest_present_ofdm = i; 197 } 198 199 /* 200 * Now we've got the basic rates as bitmaps in the ofdm and cck 201 * variables. This isn't sufficient though, as there might not 202 * be all the right rates in the bitmap. E.g. if the only basic 203 * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps 204 * and 6 Mbps because the 802.11-2007 standard says in 9.6: 205 * 206 * [...] a STA responding to a received frame shall transmit 207 * its Control Response frame [...] at the highest rate in the 208 * BSSBasicRateSet parameter that is less than or equal to the 209 * rate of the immediately previous frame in the frame exchange 210 * sequence ([...]) and that is of the same modulation class 211 * ([...]) as the received frame. If no rate contained in the 212 * BSSBasicRateSet parameter meets these conditions, then the 213 * control frame sent in response to a received frame shall be 214 * transmitted at the highest mandatory rate of the PHY that is 215 * less than or equal to the rate of the received frame, and 216 * that is of the same modulation class as the received frame. 217 * 218 * As a consequence, we need to add all mandatory rates that are 219 * lower than all of the basic rates to these bitmaps. 220 */ 221 222 if (IWM_RATE_24M_INDEX < lowest_present_ofdm) 223 ofdm |= IWM_RATE_BIT_MSK(24) >> IWM_FIRST_OFDM_RATE; 224 if (IWM_RATE_12M_INDEX < lowest_present_ofdm) 225 ofdm |= IWM_RATE_BIT_MSK(12) >> IWM_FIRST_OFDM_RATE; 226 /* 6M already there or needed so always add */ 227 ofdm |= IWM_RATE_BIT_MSK(6) >> IWM_FIRST_OFDM_RATE; 228 229 /* 230 * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. 231 * Note, however: 232 * - if no CCK rates are basic, it must be ERP since there must 233 * be some basic rates at all, so they're OFDM => ERP PHY 234 * (or we're in 5 GHz, and the cck bitmap will never be used) 235 * - if 11M is a basic rate, it must be ERP as well, so add 5.5M 236 * - if 5.5M is basic, 1M and 2M are mandatory 237 * - if 2M is basic, 1M is mandatory 238 * - if 1M is basic, that's the only valid ACK rate. 239 * As a consequence, it's not as complicated as it sounds, just add 240 * any lower rates to the ACK rate bitmap. 241 */ 242 if (IWM_RATE_11M_INDEX < lowest_present_cck) 243 cck |= IWM_RATE_BIT_MSK(11) >> IWM_FIRST_CCK_RATE; 244 if (IWM_RATE_5M_INDEX < lowest_present_cck) 245 cck |= IWM_RATE_BIT_MSK(5) >> IWM_FIRST_CCK_RATE; 246 if (IWM_RATE_2M_INDEX < lowest_present_cck) 247 cck |= IWM_RATE_BIT_MSK(2) >> IWM_FIRST_CCK_RATE; 248 /* 1M already there or needed so always add */ 249 cck |= IWM_RATE_BIT_MSK(1) >> IWM_FIRST_CCK_RATE; 250 251 *cck_rates = cck; 252 *ofdm_rates = ofdm; 253 } 254 255 static void 256 iwm_mvm_mac_ctxt_cmd_common(struct iwm_softc *sc, struct iwm_node *in, 257 struct iwm_mac_ctx_cmd *cmd, uint32_t action) 258 { 259 struct ieee80211com *ic = &sc->sc_ic; 260 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 261 struct ieee80211_node *ni = vap->iv_bss; 262 struct iwm_vap *ivp = IWM_VAP(vap); 263 int cck_ack_rates, ofdm_ack_rates; 264 int i; 265 int is2ghz; 266 267 /* 268 * id is the MAC address ID - something to do with MAC filtering. 269 * color - not sure. 270 * 271 * These are both functions of the vap, not of the node. 272 * So, for now, hard-code both to 0 (default). 273 */ 274 cmd->id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(ivp->id, 275 ivp->color)); 276 cmd->action = htole32(action); 277 278 cmd->mac_type = htole32(IWM_FW_MAC_TYPE_BSS_STA); 279 280 /* 281 * The TSF ID is one of four TSF tracking resources in the firmware. 282 * Read the iwlwifi/mvm code for more details. 283 * 284 * For now, just hard-code it to TSF tracking ID 0; we only support 285 * a single STA mode VAP. 286 * 287 * It's per-vap, not per-node. 288 */ 289 cmd->tsf_id = htole32(IWM_DEFAULT_TSFID); 290 291 IEEE80211_ADDR_COPY(cmd->node_addr, vap->iv_myaddr); 292 293 /* 294 * XXX should we error out if in_assoc is 1 and ni == NULL? 295 */ 296 #if 0 297 if (in->in_assoc) { 298 IEEE80211_ADDR_COPY(cmd->bssid_addr, ni->ni_bssid); 299 } else { 300 /* eth broadcast address */ 301 IEEE80211_ADDR_COPY(cmd->bssid_addr, ieee80211broadcastaddr); 302 } 303 #else 304 /* 305 * XXX This workaround makes the firmware behave more correctly once 306 * we are associated, regularly giving us statistics notifications, 307 * as well as signaling missed beacons to us. 308 * Since we only call iwm_mvm_mac_ctxt_add() and 309 * iwm_mvm_mac_ctxt_changed() when already authenticating or 310 * associating, ni->ni_bssid should always make sense here. 311 */ 312 IEEE80211_ADDR_COPY(cmd->bssid_addr, ni->ni_bssid); 313 #endif 314 315 /* 316 * Default to 2ghz if no node information is given. 317 */ 318 if (in && in->in_ni.ni_chan != IEEE80211_CHAN_ANYC) { 319 is2ghz = !! IEEE80211_IS_CHAN_2GHZ(in->in_ni.ni_chan); 320 } else { 321 is2ghz = 1; 322 } 323 iwm_mvm_ack_rates(sc, is2ghz, &cck_ack_rates, &ofdm_ack_rates, in); 324 cmd->cck_rates = htole32(cck_ack_rates); 325 cmd->ofdm_rates = htole32(ofdm_ack_rates); 326 327 cmd->cck_short_preamble 328 = htole32((ic->ic_flags & IEEE80211_F_SHPREAMBLE) 329 ? IWM_MAC_FLG_SHORT_PREAMBLE : 0); 330 cmd->short_slot 331 = htole32((ic->ic_flags & IEEE80211_F_SHSLOT) 332 ? IWM_MAC_FLG_SHORT_SLOT : 0); 333 334 /* 335 * XXX TODO: if we're doing QOS.. 336 * cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA) 337 */ 338 339 for (i = 0; i < WME_NUM_AC; i++) { 340 uint8_t txf = iwm_mvm_ac_to_tx_fifo[i]; 341 342 cmd->ac[txf].cw_min = htole16(ivp->queue_params[i].cw_min); 343 cmd->ac[txf].cw_max = htole16(ivp->queue_params[i].cw_max); 344 cmd->ac[txf].edca_txop = 345 htole16(ivp->queue_params[i].edca_txop); 346 cmd->ac[txf].aifsn = ivp->queue_params[i].aifsn; 347 cmd->ac[txf].fifos_mask = (1 << txf); 348 } 349 350 if (ivp->have_wme) 351 cmd->qos_flags |= htole32(IWM_MAC_QOS_FLG_UPDATE_EDCA); 352 353 if (ic->ic_flags & IEEE80211_F_USEPROT) 354 cmd->protection_flags |= htole32(IWM_MAC_PROT_FLG_TGG_PROTECT); 355 356 cmd->filter_flags = htole32(IWM_MAC_FILTER_ACCEPT_GRP); 357 } 358 359 static int 360 iwm_mvm_mac_ctxt_send_cmd(struct iwm_softc *sc, struct iwm_mac_ctx_cmd *cmd) 361 { 362 int ret = iwm_mvm_send_cmd_pdu(sc, IWM_MAC_CONTEXT_CMD, IWM_CMD_SYNC, 363 sizeof(*cmd), cmd); 364 if (ret) 365 device_printf(sc->sc_dev, 366 "%s: Failed to send MAC context (action:%d): %d\n", 367 __func__, le32toh(cmd->action), ret); 368 return ret; 369 } 370 371 /* 372 * Fill the specific data for mac context of type station or p2p client 373 */ 374 static void 375 iwm_mvm_mac_ctxt_cmd_fill_sta(struct iwm_softc *sc, struct iwm_node *in, 376 struct iwm_mac_data_sta *ctxt_sta, int force_assoc_off) 377 { 378 struct ieee80211_node *ni = &in->in_ni; 379 unsigned dtim_period, dtim_count; 380 struct ieee80211com *ic = &sc->sc_ic; 381 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 382 383 /* will this work? */ 384 dtim_period = vap->iv_dtim_period; 385 dtim_count = vap->iv_dtim_count; 386 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 387 "%s: force_assoc_off=%d\n", __func__, force_assoc_off); 388 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 389 "DTIM: period=%d count=%d\n", dtim_period, dtim_count); 390 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 391 "BEACON: tsf: %llu, ni_intval=%d\n", 392 (unsigned long long) le64toh(ni->ni_tstamp.tsf), 393 ni->ni_intval); 394 395 /* We need the dtim_period to set the MAC as associated */ 396 if (in->in_assoc && dtim_period && !force_assoc_off) { 397 uint64_t tsf; 398 uint32_t dtim_offs; 399 400 /* 401 * The DTIM count counts down, so when it is N that means N 402 * more beacon intervals happen until the DTIM TBTT. Therefore 403 * add this to the current time. If that ends up being in the 404 * future, the firmware will handle it. 405 * 406 * Also note that the system_timestamp (which we get here as 407 * "sync_device_ts") and TSF timestamp aren't at exactly the 408 * same offset in the frame -- the TSF is at the first symbol 409 * of the TSF, the system timestamp is at signal acquisition 410 * time. This means there's an offset between them of at most 411 * a few hundred microseconds (24 * 8 bits + PLCP time gives 412 * 384us in the longest case), this is currently not relevant 413 * as the firmware wakes up around 2ms before the TBTT. 414 */ 415 dtim_offs = dtim_count * ni->ni_intval; 416 /* convert TU to usecs */ 417 dtim_offs *= 1024; 418 419 /* 420 * net80211: TSF is in 802.11 order, so convert up to local 421 * ordering before we manipulate things. 422 */ 423 tsf = le64toh(ni->ni_tstamp.tsf); 424 425 ctxt_sta->dtim_tsf = htole64(tsf + dtim_offs); 426 ctxt_sta->dtim_time = htole32(tsf + dtim_offs); 427 428 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 429 "DTIM TBTT is 0x%llx/0x%x, offset %d\n", 430 (long long)le64toh(ctxt_sta->dtim_tsf), 431 le32toh(ctxt_sta->dtim_time), dtim_offs); 432 433 ctxt_sta->is_assoc = htole32(1); 434 } else { 435 ctxt_sta->is_assoc = htole32(0); 436 } 437 438 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD | IWM_DEBUG_BEACON, 439 "%s: ni_intval: %d, bi_reciprocal: %d, dtim_interval: %d, dtim_reciprocal: %d\n", 440 __func__, 441 ni->ni_intval, 442 iwm_mvm_reciprocal(ni->ni_intval), 443 ni->ni_intval * dtim_period, 444 iwm_mvm_reciprocal(ni->ni_intval * dtim_period)); 445 446 ctxt_sta->bi = htole32(ni->ni_intval); 447 ctxt_sta->bi_reciprocal = htole32(iwm_mvm_reciprocal(ni->ni_intval)); 448 ctxt_sta->dtim_interval = htole32(ni->ni_intval * dtim_period); 449 ctxt_sta->dtim_reciprocal = 450 htole32(iwm_mvm_reciprocal(ni->ni_intval * dtim_period)); 451 452 /* 10 = CONN_MAX_LISTEN_INTERVAL */ 453 ctxt_sta->listen_interval = htole32(10); 454 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD | IWM_DEBUG_BEACON, 455 "%s: associd=%d\n", __func__, IEEE80211_AID(ni->ni_associd)); 456 ctxt_sta->assoc_id = htole32(IEEE80211_AID(ni->ni_associd)); 457 } 458 459 static int 460 iwm_mvm_mac_ctxt_cmd_station(struct iwm_softc *sc, struct ieee80211vap *vap, 461 uint32_t action) 462 { 463 struct ieee80211_node *ni = vap->iv_bss; 464 struct iwm_node *in = IWM_NODE(ni); 465 struct iwm_mac_ctx_cmd cmd = {}; 466 467 IWM_DPRINTF(sc, IWM_DEBUG_RESET, 468 "%s: called; action=%d\n", __func__, action); 469 470 /* Fill the common data for all mac context types */ 471 iwm_mvm_mac_ctxt_cmd_common(sc, in, &cmd, action); 472 473 /* Allow beacons to pass through as long as we are not associated,or we 474 * do not have dtim period information */ 475 if (!in->in_assoc || !vap->iv_dtim_period) 476 cmd.filter_flags |= htole32(IWM_MAC_FILTER_IN_BEACON); 477 else 478 cmd.filter_flags &= ~htole32(IWM_MAC_FILTER_IN_BEACON); 479 480 /* Fill the data specific for station mode */ 481 iwm_mvm_mac_ctxt_cmd_fill_sta(sc, in, 482 &cmd.sta, action == IWM_FW_CTXT_ACTION_ADD); 483 484 return iwm_mvm_mac_ctxt_send_cmd(sc, &cmd); 485 } 486 487 static int 488 iwm_mvm_mac_ctx_send(struct iwm_softc *sc, struct ieee80211vap *vap, 489 uint32_t action) 490 { 491 return iwm_mvm_mac_ctxt_cmd_station(sc, vap, action); 492 } 493 494 int 495 iwm_mvm_mac_ctxt_add(struct iwm_softc *sc, struct ieee80211vap *vap) 496 { 497 struct iwm_vap *iv = IWM_VAP(vap); 498 int ret; 499 500 if (iv->is_uploaded != 0) { 501 device_printf(sc->sc_dev, "%s: called; uploaded != 0\n", 502 __func__); 503 return (EIO); 504 } 505 506 ret = iwm_mvm_mac_ctx_send(sc, vap, IWM_FW_CTXT_ACTION_ADD); 507 if (ret) 508 return (ret); 509 iv->is_uploaded = 1; 510 return (0); 511 } 512 513 int 514 iwm_mvm_mac_ctxt_changed(struct iwm_softc *sc, struct ieee80211vap *vap) 515 { 516 struct iwm_vap *iv = IWM_VAP(vap); 517 518 if (iv->is_uploaded == 0) { 519 device_printf(sc->sc_dev, "%s: called; uploaded = 0\n", 520 __func__); 521 return (EIO); 522 } 523 return iwm_mvm_mac_ctx_send(sc, vap, IWM_FW_CTXT_ACTION_MODIFY); 524 } 525 526 #if 0 527 static int 528 iwm_mvm_mac_ctxt_remove(struct iwm_softc *sc, struct iwm_node *in) 529 { 530 struct iwm_mac_ctx_cmd cmd; 531 int ret; 532 533 if (!in->in_uploaded) { 534 device_printf(sc->sc_dev, 535 "attempt to remove !uploaded node %p", in); 536 return EIO; 537 } 538 539 memset(&cmd, 0, sizeof(cmd)); 540 541 cmd.id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(IWM_DEFAULT_MACID, 542 IWM_DEFAULT_COLOR)); 543 cmd.action = htole32(IWM_FW_CTXT_ACTION_REMOVE); 544 545 ret = iwm_mvm_send_cmd_pdu(sc, 546 IWM_MAC_CONTEXT_CMD, IWM_CMD_SYNC, sizeof(cmd), &cmd); 547 if (ret) { 548 device_printf(sc->sc_dev, 549 "Failed to remove MAC context: %d\n", ret); 550 return ret; 551 } 552 in->in_uploaded = 0; 553 554 return 0; 555 } 556 #endif 557