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#include "opt_wlan.h" 107#include "opt_iwm.h" 108 109#include <sys/param.h> 110#include <sys/bus.h> 111#include <sys/conf.h> 112#include <sys/endian.h> 113#include <sys/firmware.h> 114#include <sys/kernel.h> 115#include <sys/malloc.h> 116#include <sys/mbuf.h> 117#include <sys/mutex.h> 118#include <sys/module.h> 119#include <sys/proc.h> 120#include <sys/rman.h> 121#include <sys/socket.h> 122#include <sys/sockio.h> 123#include <sys/sysctl.h> 124#include <sys/linker.h> 125 126#include <machine/bus.h> 127#include <machine/endian.h> 128#include <machine/resource.h> 129 130#include <dev/pci/pcivar.h> 131#include <dev/pci/pcireg.h> 132 133#include <net/bpf.h> 134 135#include <net/if.h> 136#include <net/if_var.h> 137#include <net/if_arp.h> 138#include <net/if_dl.h> 139#include <net/if_media.h> 140#include <net/if_types.h> 141 142#include <netinet/in.h> 143#include <netinet/in_systm.h> 144#include <netinet/if_ether.h> 145#include <netinet/ip.h> 146 147#include <net80211/ieee80211_var.h> 148#include <net80211/ieee80211_regdomain.h> 149#include <net80211/ieee80211_ratectl.h> 150#include <net80211/ieee80211_radiotap.h> 151 152#include <dev/iwm/if_iwmreg.h> 153#include <dev/iwm/if_iwmvar.h> 154#include <dev/iwm/if_iwm_debug.h> 155#include <dev/iwm/if_iwm_util.h> 156#include <dev/iwm/if_iwm_mac_ctxt.h> 157 158/* 159 * BEGIN mvm/mac-ctxt.c 160 */ 161 162const uint8_t iwm_ac_to_tx_fifo[] = { 163 IWM_TX_FIFO_BE, 164 IWM_TX_FIFO_BK, 165 IWM_TX_FIFO_VI, 166 IWM_TX_FIFO_VO, 167}; 168 169static void 170iwm_ack_rates(struct iwm_softc *sc, int is2ghz, 171 int *cck_rates, int *ofdm_rates, struct iwm_node *in) 172{ 173 int lowest_present_ofdm = 100; 174 int lowest_present_cck = 100; 175 uint8_t cck = 0; 176 uint8_t ofdm = 0; 177 int i; 178 struct ieee80211_rateset *rs = &in->in_ni.ni_rates; 179 180 if (is2ghz) { 181 for (i = IWM_FIRST_CCK_RATE; i <= IWM_LAST_CCK_RATE; i++) { 182 if ((iwm_ridx2rate(rs, i) & IEEE80211_RATE_BASIC) == 0) 183 continue; 184 cck |= (1 << i); 185 if (lowest_present_cck > i) 186 lowest_present_cck = i; 187 } 188 } 189 for (i = IWM_FIRST_OFDM_RATE; i <= IWM_LAST_NON_HT_RATE; i++) { 190 if ((iwm_ridx2rate(rs, i) & IEEE80211_RATE_BASIC) == 0) 191 continue; 192 ofdm |= (1 << (i - IWM_FIRST_OFDM_RATE)); 193 if (lowest_present_ofdm > i) 194 lowest_present_ofdm = i; 195 } 196 197 /* 198 * Now we've got the basic rates as bitmaps in the ofdm and cck 199 * variables. This isn't sufficient though, as there might not 200 * be all the right rates in the bitmap. E.g. if the only basic 201 * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps 202 * and 6 Mbps because the 802.11-2007 standard says in 9.6: 203 * 204 * [...] a STA responding to a received frame shall transmit 205 * its Control Response frame [...] at the highest rate in the 206 * BSSBasicRateSet parameter that is less than or equal to the 207 * rate of the immediately previous frame in the frame exchange 208 * sequence ([...]) and that is of the same modulation class 209 * ([...]) as the received frame. If no rate contained in the 210 * BSSBasicRateSet parameter meets these conditions, then the 211 * control frame sent in response to a received frame shall be 212 * transmitted at the highest mandatory rate of the PHY that is 213 * less than or equal to the rate of the received frame, and 214 * that is of the same modulation class as the received frame. 215 * 216 * As a consequence, we need to add all mandatory rates that are 217 * lower than all of the basic rates to these bitmaps. 218 */ 219 220 if (IWM_RATE_24M_INDEX < lowest_present_ofdm) 221 ofdm |= IWM_RATE_BIT_MSK(24) >> IWM_FIRST_OFDM_RATE; 222 if (IWM_RATE_12M_INDEX < lowest_present_ofdm) 223 ofdm |= IWM_RATE_BIT_MSK(12) >> IWM_FIRST_OFDM_RATE; 224 /* 6M already there or needed so always add */ 225 ofdm |= IWM_RATE_BIT_MSK(6) >> IWM_FIRST_OFDM_RATE; 226 227 /* 228 * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. 229 * Note, however: 230 * - if no CCK rates are basic, it must be ERP since there must 231 * be some basic rates at all, so they're OFDM => ERP PHY 232 * (or we're in 5 GHz, and the cck bitmap will never be used) 233 * - if 11M is a basic rate, it must be ERP as well, so add 5.5M 234 * - if 5.5M is basic, 1M and 2M are mandatory 235 * - if 2M is basic, 1M is mandatory 236 * - if 1M is basic, that's the only valid ACK rate. 237 * As a consequence, it's not as complicated as it sounds, just add 238 * any lower rates to the ACK rate bitmap. 239 */ 240 if (IWM_RATE_11M_INDEX < lowest_present_cck) 241 cck |= IWM_RATE_BIT_MSK(11) >> IWM_FIRST_CCK_RATE; 242 if (IWM_RATE_5M_INDEX < lowest_present_cck) 243 cck |= IWM_RATE_BIT_MSK(5) >> IWM_FIRST_CCK_RATE; 244 if (IWM_RATE_2M_INDEX < lowest_present_cck) 245 cck |= IWM_RATE_BIT_MSK(2) >> IWM_FIRST_CCK_RATE; 246 /* 1M already there or needed so always add */ 247 cck |= IWM_RATE_BIT_MSK(1) >> IWM_FIRST_CCK_RATE; 248 249 *cck_rates = cck; 250 *ofdm_rates = ofdm; 251} 252 253static void 254iwm_mac_ctxt_cmd_common(struct iwm_softc *sc, struct iwm_node *in, 255 struct iwm_mac_ctx_cmd *cmd, uint32_t action) 256{ 257 struct ieee80211com *ic = &sc->sc_ic; 258 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 259 struct ieee80211_node *ni = vap->iv_bss; 260 struct iwm_vap *ivp = IWM_VAP(vap); 261 int cck_ack_rates, ofdm_ack_rates; 262 int i; 263 int is2ghz; 264 265 /* 266 * id is the MAC address ID - something to do with MAC filtering. 267 * color - not sure. 268 * 269 * These are both functions of the vap, not of the node. 270 * So, for now, hard-code both to 0 (default). 271 */ 272 cmd->id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(ivp->id, 273 ivp->color)); 274 cmd->action = htole32(action); 275 276 cmd->mac_type = htole32(IWM_FW_MAC_TYPE_BSS_STA); 277 278 /* 279 * The TSF ID is one of four TSF tracking resources in the firmware. 280 * Read the iwlwifi/mvm code for more details. 281 * 282 * For now, just hard-code it to TSF tracking ID 0; we only support 283 * a single STA mode VAP. 284 * 285 * It's per-vap, not per-node. 286 */ 287 cmd->tsf_id = htole32(IWM_DEFAULT_TSFID); 288 289 IEEE80211_ADDR_COPY(cmd->node_addr, vap->iv_myaddr); 290 291 /* 292 * XXX should we error out if in_assoc is 1 and ni == NULL? 293 */ 294#if 0 295 if (in->in_assoc) { 296 IEEE80211_ADDR_COPY(cmd->bssid_addr, ni->ni_bssid); 297 } else { 298 /* eth broadcast address */ 299 IEEE80211_ADDR_COPY(cmd->bssid_addr, ieee80211broadcastaddr); 300 } 301#else 302 /* 303 * XXX This workaround makes the firmware behave more correctly once 304 * we are associated, regularly giving us statistics notifications, 305 * as well as signaling missed beacons to us. 306 * Since we only call iwm_mac_ctxt_add() and 307 * iwm_mac_ctxt_changed() when already authenticating or 308 * associating, ni->ni_bssid should always make sense here. 309 */ 310 if (ivp->iv_auth) { 311 IEEE80211_ADDR_COPY(cmd->bssid_addr, ni->ni_bssid); 312 } else { 313 /* XXX Or maybe all zeroes address? */ 314 IEEE80211_ADDR_COPY(cmd->bssid_addr, ieee80211broadcastaddr); 315 } 316#endif 317 318 /* 319 * Default to 2ghz if no node information is given. 320 */ 321 if (in && in->in_ni.ni_chan != IEEE80211_CHAN_ANYC) { 322 is2ghz = !! IEEE80211_IS_CHAN_2GHZ(in->in_ni.ni_chan); 323 } else { 324 is2ghz = 1; 325 } 326 iwm_ack_rates(sc, is2ghz, &cck_ack_rates, &ofdm_ack_rates, in); 327 cmd->cck_rates = htole32(cck_ack_rates); 328 cmd->ofdm_rates = htole32(ofdm_ack_rates); 329 330 cmd->cck_short_preamble 331 = htole32((ic->ic_flags & IEEE80211_F_SHPREAMBLE) 332 ? IWM_MAC_FLG_SHORT_PREAMBLE : 0); 333 cmd->short_slot 334 = htole32((ic->ic_flags & IEEE80211_F_SHSLOT) 335 ? IWM_MAC_FLG_SHORT_SLOT : 0); 336 337 /* 338 * XXX TODO: if we're doing QOS.. 339 * cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA) 340 */ 341 342 for (i = 0; i < WME_NUM_AC; i++) { 343 uint8_t txf = iwm_ac_to_tx_fifo[i]; 344 345 cmd->ac[txf].cw_min = htole16(ivp->queue_params[i].cw_min); 346 cmd->ac[txf].cw_max = htole16(ivp->queue_params[i].cw_max); 347 cmd->ac[txf].edca_txop = 348 htole16(ivp->queue_params[i].edca_txop); 349 cmd->ac[txf].aifsn = ivp->queue_params[i].aifsn; 350 cmd->ac[txf].fifos_mask = (1 << txf); 351 } 352 353 if (ivp->have_wme) 354 cmd->qos_flags |= htole32(IWM_MAC_QOS_FLG_UPDATE_EDCA); 355 356 if (ic->ic_flags & IEEE80211_F_USEPROT) 357 cmd->protection_flags |= htole32(IWM_MAC_PROT_FLG_TGG_PROTECT); 358 359 cmd->filter_flags = htole32(IWM_MAC_FILTER_ACCEPT_GRP); 360} 361 362static int 363iwm_mac_ctxt_send_cmd(struct iwm_softc *sc, struct iwm_mac_ctx_cmd *cmd) 364{ 365 int ret = iwm_send_cmd_pdu(sc, IWM_MAC_CONTEXT_CMD, IWM_CMD_SYNC, 366 sizeof(*cmd), cmd); 367 if (ret) 368 device_printf(sc->sc_dev, 369 "%s: Failed to send MAC context (action:%d): %d\n", 370 __func__, le32toh(cmd->action), ret); 371 return ret; 372} 373 374/* 375 * Fill the specific data for mac context of type station or p2p client 376 */ 377static void 378iwm_mac_ctxt_cmd_fill_sta(struct iwm_softc *sc, struct iwm_node *in, 379 struct iwm_mac_data_sta *ctxt_sta, int force_assoc_off) 380{ 381 struct ieee80211_node *ni = &in->in_ni; 382 unsigned dtim_period, dtim_count; 383 struct ieee80211com *ic = &sc->sc_ic; 384 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 385 386 /* will this work? */ 387 dtim_period = vap->iv_dtim_period; 388 dtim_count = vap->iv_dtim_count; 389 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 390 "%s: force_assoc_off=%d\n", __func__, force_assoc_off); 391 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 392 "DTIM: period=%d count=%d\n", dtim_period, dtim_count); 393 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 394 "BEACON: tsf: %llu, ni_intval=%d\n", 395 (unsigned long long) le64toh(ni->ni_tstamp.tsf), 396 ni->ni_intval); 397 398 /* We need the dtim_period to set the MAC as associated */ 399 if (in->in_assoc && dtim_period && !force_assoc_off) { 400 uint64_t tsf; 401 uint32_t dtim_offs; 402 403 /* 404 * The DTIM count counts down, so when it is N that means N 405 * more beacon intervals happen until the DTIM TBTT. Therefore 406 * add this to the current time. If that ends up being in the 407 * future, the firmware will handle it. 408 * 409 * Also note that the system_timestamp (which we get here as 410 * "sync_device_ts") and TSF timestamp aren't at exactly the 411 * same offset in the frame -- the TSF is at the first symbol 412 * of the TSF, the system timestamp is at signal acquisition 413 * time. This means there's an offset between them of at most 414 * a few hundred microseconds (24 * 8 bits + PLCP time gives 415 * 384us in the longest case), this is currently not relevant 416 * as the firmware wakes up around 2ms before the TBTT. 417 */ 418 dtim_offs = dtim_count * ni->ni_intval; 419 /* convert TU to usecs */ 420 dtim_offs *= 1024; 421 422 /* 423 * net80211: TSF is in 802.11 order, so convert up to local 424 * ordering before we manipulate things. 425 */ 426 tsf = le64toh(ni->ni_tstamp.tsf); 427 428 ctxt_sta->dtim_tsf = htole64(tsf + dtim_offs); 429 ctxt_sta->dtim_time = htole32(tsf + dtim_offs); 430 431 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 432 "DTIM TBTT is 0x%llx/0x%x, offset %d\n", 433 (long long)le64toh(ctxt_sta->dtim_tsf), 434 le32toh(ctxt_sta->dtim_time), dtim_offs); 435 436 ctxt_sta->is_assoc = htole32(1); 437 } else { 438 ctxt_sta->is_assoc = htole32(0); 439 } 440 441 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD | IWM_DEBUG_BEACON, 442 "%s: ni_intval: %d, bi_reciprocal: %d, dtim_interval: %d, dtim_reciprocal: %d\n", 443 __func__, 444 ni->ni_intval, 445 iwm_reciprocal(ni->ni_intval), 446 ni->ni_intval * dtim_period, 447 iwm_reciprocal(ni->ni_intval * dtim_period)); 448 449 ctxt_sta->bi = htole32(ni->ni_intval); 450 ctxt_sta->bi_reciprocal = htole32(iwm_reciprocal(ni->ni_intval)); 451 ctxt_sta->dtim_interval = htole32(ni->ni_intval * dtim_period); 452 ctxt_sta->dtim_reciprocal = 453 htole32(iwm_reciprocal(ni->ni_intval * dtim_period)); 454 455 /* 10 = CONN_MAX_LISTEN_INTERVAL */ 456 ctxt_sta->listen_interval = htole32(10); 457 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD | IWM_DEBUG_BEACON, 458 "%s: associd=%d\n", __func__, IEEE80211_AID(ni->ni_associd)); 459 ctxt_sta->assoc_id = htole32(IEEE80211_AID(ni->ni_associd)); 460} 461 462static int 463iwm_mac_ctxt_cmd_station(struct iwm_softc *sc, struct ieee80211vap *vap, 464 uint32_t action) 465{ 466 struct ieee80211_node *ni = vap->iv_bss; 467 struct iwm_node *in = IWM_NODE(ni); 468 struct iwm_mac_ctx_cmd cmd = {}; 469 470 IWM_DPRINTF(sc, IWM_DEBUG_RESET, 471 "%s: called; action=%d\n", __func__, action); 472 473 /* Fill the common data for all mac context types */ 474 iwm_mac_ctxt_cmd_common(sc, in, &cmd, action); 475 476 /* Allow beacons to pass through as long as we are not associated,or we 477 * do not have dtim period information */ 478 if (!in->in_assoc || !vap->iv_dtim_period) 479 cmd.filter_flags |= htole32(IWM_MAC_FILTER_IN_BEACON); 480 else 481 cmd.filter_flags &= ~htole32(IWM_MAC_FILTER_IN_BEACON); 482 483 /* Fill the data specific for station mode */ 484 iwm_mac_ctxt_cmd_fill_sta(sc, in, 485 &cmd.sta, action == IWM_FW_CTXT_ACTION_ADD); 486 487 return iwm_mac_ctxt_send_cmd(sc, &cmd); 488} 489 490static int 491iwm_mac_ctx_send(struct iwm_softc *sc, struct ieee80211vap *vap, 492 uint32_t action) 493{ 494 return iwm_mac_ctxt_cmd_station(sc, vap, action); 495} 496 497int 498iwm_mac_ctxt_add(struct iwm_softc *sc, struct ieee80211vap *vap) 499{ 500 struct iwm_vap *iv = IWM_VAP(vap); 501 int ret; 502 503 if (iv->is_uploaded != 0) { 504 device_printf(sc->sc_dev, "%s: called; uploaded != 0\n", 505 __func__); 506 return (EIO); 507 } 508 509 ret = iwm_mac_ctx_send(sc, vap, IWM_FW_CTXT_ACTION_ADD); 510 if (ret) 511 return (ret); 512 iv->is_uploaded = 1; 513 return (0); 514} 515 516int 517iwm_mac_ctxt_changed(struct iwm_softc *sc, struct ieee80211vap *vap) 518{ 519 struct iwm_vap *iv = IWM_VAP(vap); 520 521 if (iv->is_uploaded == 0) { 522 device_printf(sc->sc_dev, "%s: called; uploaded = 0\n", 523 __func__); 524 return (EIO); 525 } 526 return iwm_mac_ctx_send(sc, vap, IWM_FW_CTXT_ACTION_MODIFY); 527} 528 529#if 0 530static int 531iwm_mac_ctxt_remove(struct iwm_softc *sc, struct iwm_node *in) 532{ 533 struct iwm_mac_ctx_cmd cmd; 534 int ret; 535 536 if (!in->in_uploaded) { 537 device_printf(sc->sc_dev, 538 "attempt to remove !uploaded node %p", in); 539 return EIO; 540 } 541 542 memset(&cmd, 0, sizeof(cmd)); 543 544 cmd.id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(IWM_DEFAULT_MACID, 545 IWM_DEFAULT_COLOR)); 546 cmd.action = htole32(IWM_FW_CTXT_ACTION_REMOVE); 547 548 ret = iwm_send_cmd_pdu(sc, 549 IWM_MAC_CONTEXT_CMD, IWM_CMD_SYNC, sizeof(cmd), &cmd); 550 if (ret) { 551 device_printf(sc->sc_dev, 552 "Failed to remove MAC context: %d\n", ret); 553 return ret; 554 } 555 in->in_uploaded = 0; 556 557 return 0; 558} 559#endif 560