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/param.h> 106 #include <sys/bus.h> 107 #include <sys/conf.h> 108 #include <sys/endian.h> 109 #include <sys/firmware.h> 110 #include <sys/kernel.h> 111 #include <sys/malloc.h> 112 #include <sys/mbuf.h> 113 #include <sys/rman.h> 114 #include <sys/sysctl.h> 115 #include <sys/linker.h> 116 117 #include <machine/endian.h> 118 119 #include <bus/pci/pcivar.h> 120 #include <bus/pci/pcireg.h> 121 122 #include <net/bpf.h> 123 124 #include <net/if.h> 125 #include <net/if_var.h> 126 #include <net/if_arp.h> 127 #include <net/if_dl.h> 128 #include <net/if_media.h> 129 #include <net/if_types.h> 130 131 #include <netinet/in.h> 132 #include <netinet/in_systm.h> 133 #include <netinet/if_ether.h> 134 #include <netinet/ip.h> 135 136 #include <netproto/802_11/ieee80211_var.h> 137 #include <netproto/802_11/ieee80211_regdomain.h> 138 #include <netproto/802_11/ieee80211_ratectl.h> 139 #include <netproto/802_11/ieee80211_radiotap.h> 140 141 #include "if_iwmreg.h" 142 #include "if_iwmvar.h" 143 #include "if_iwm_debug.h" 144 #include "if_iwm_util.h" 145 #include "if_iwm_mac_ctxt.h" 146 147 /* 148 * BEGIN mvm/mac-ctxt.c 149 */ 150 151 const uint8_t iwm_ac_to_tx_fifo[] = { 152 IWM_TX_FIFO_BE, 153 IWM_TX_FIFO_BK, 154 IWM_TX_FIFO_VI, 155 IWM_TX_FIFO_VO, 156 }; 157 158 static void 159 iwm_ack_rates(struct iwm_softc *sc, int is2ghz, 160 int *cck_rates, int *ofdm_rates, struct iwm_node *in) 161 { 162 int lowest_present_ofdm = 100; 163 int lowest_present_cck = 100; 164 uint8_t cck = 0; 165 uint8_t ofdm = 0; 166 int i; 167 struct ieee80211_rateset *rs = &in->in_ni.ni_rates; 168 169 if (is2ghz) { 170 for (i = IWM_FIRST_CCK_RATE; i <= IWM_LAST_CCK_RATE; i++) { 171 if ((iwm_ridx2rate(rs, i) & IEEE80211_RATE_BASIC) == 0) 172 continue; 173 cck |= (1 << i); 174 if (lowest_present_cck > i) 175 lowest_present_cck = i; 176 } 177 } 178 for (i = IWM_FIRST_OFDM_RATE; i <= IWM_LAST_NON_HT_RATE; i++) { 179 if ((iwm_ridx2rate(rs, i) & IEEE80211_RATE_BASIC) == 0) 180 continue; 181 ofdm |= (1 << (i - IWM_FIRST_OFDM_RATE)); 182 if (lowest_present_ofdm > i) 183 lowest_present_ofdm = i; 184 } 185 186 /* 187 * Now we've got the basic rates as bitmaps in the ofdm and cck 188 * variables. This isn't sufficient though, as there might not 189 * be all the right rates in the bitmap. E.g. if the only basic 190 * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps 191 * and 6 Mbps because the 802.11-2007 standard says in 9.6: 192 * 193 * [...] a STA responding to a received frame shall transmit 194 * its Control Response frame [...] at the highest rate in the 195 * BSSBasicRateSet parameter that is less than or equal to the 196 * rate of the immediately previous frame in the frame exchange 197 * sequence ([...]) and that is of the same modulation class 198 * ([...]) as the received frame. If no rate contained in the 199 * BSSBasicRateSet parameter meets these conditions, then the 200 * control frame sent in response to a received frame shall be 201 * transmitted at the highest mandatory rate of the PHY that is 202 * less than or equal to the rate of the received frame, and 203 * that is of the same modulation class as the received frame. 204 * 205 * As a consequence, we need to add all mandatory rates that are 206 * lower than all of the basic rates to these bitmaps. 207 */ 208 209 if (IWM_RATE_24M_INDEX < lowest_present_ofdm) 210 ofdm |= IWM_RATE_BIT_MSK(24) >> IWM_FIRST_OFDM_RATE; 211 if (IWM_RATE_12M_INDEX < lowest_present_ofdm) 212 ofdm |= IWM_RATE_BIT_MSK(12) >> IWM_FIRST_OFDM_RATE; 213 /* 6M already there or needed so always add */ 214 ofdm |= IWM_RATE_BIT_MSK(6) >> IWM_FIRST_OFDM_RATE; 215 216 /* 217 * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. 218 * Note, however: 219 * - if no CCK rates are basic, it must be ERP since there must 220 * be some basic rates at all, so they're OFDM => ERP PHY 221 * (or we're in 5 GHz, and the cck bitmap will never be used) 222 * - if 11M is a basic rate, it must be ERP as well, so add 5.5M 223 * - if 5.5M is basic, 1M and 2M are mandatory 224 * - if 2M is basic, 1M is mandatory 225 * - if 1M is basic, that's the only valid ACK rate. 226 * As a consequence, it's not as complicated as it sounds, just add 227 * any lower rates to the ACK rate bitmap. 228 */ 229 if (IWM_RATE_11M_INDEX < lowest_present_cck) 230 cck |= IWM_RATE_BIT_MSK(11) >> IWM_FIRST_CCK_RATE; 231 if (IWM_RATE_5M_INDEX < lowest_present_cck) 232 cck |= IWM_RATE_BIT_MSK(5) >> IWM_FIRST_CCK_RATE; 233 if (IWM_RATE_2M_INDEX < lowest_present_cck) 234 cck |= IWM_RATE_BIT_MSK(2) >> IWM_FIRST_CCK_RATE; 235 /* 1M already there or needed so always add */ 236 cck |= IWM_RATE_BIT_MSK(1) >> IWM_FIRST_CCK_RATE; 237 238 *cck_rates = cck; 239 *ofdm_rates = ofdm; 240 } 241 242 static void 243 iwm_mac_ctxt_cmd_common(struct iwm_softc *sc, struct iwm_node *in, 244 struct iwm_mac_ctx_cmd *cmd, uint32_t action) 245 { 246 struct ieee80211com *ic = &sc->sc_ic; 247 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 248 struct ieee80211_node *ni = vap->iv_bss; 249 struct iwm_vap *ivp = IWM_VAP(vap); 250 int cck_ack_rates, ofdm_ack_rates; 251 int i; 252 int is2ghz; 253 254 /* 255 * id is the MAC address ID - something to do with MAC filtering. 256 * color - not sure. 257 * 258 * These are both functions of the vap, not of the node. 259 * So, for now, hard-code both to 0 (default). 260 */ 261 cmd->id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(ivp->id, 262 ivp->color)); 263 cmd->action = htole32(action); 264 265 cmd->mac_type = htole32(IWM_FW_MAC_TYPE_BSS_STA); 266 267 /* 268 * The TSF ID is one of four TSF tracking resources in the firmware. 269 * Read the iwlwifi/mvm code for more details. 270 * 271 * For now, just hard-code it to TSF tracking ID 0; we only support 272 * a single STA mode VAP. 273 * 274 * It's per-vap, not per-node. 275 */ 276 cmd->tsf_id = htole32(IWM_DEFAULT_TSFID); 277 278 IEEE80211_ADDR_COPY(cmd->node_addr, vap->iv_myaddr); 279 280 /* 281 * XXX should we error out if in_assoc is 1 and ni == NULL? 282 */ 283 #if 0 284 if (in->in_assoc) { 285 IEEE80211_ADDR_COPY(cmd->bssid_addr, ni->ni_bssid); 286 } else { 287 /* eth broadcast address */ 288 IEEE80211_ADDR_COPY(cmd->bssid_addr, ieee80211broadcastaddr); 289 } 290 #else 291 /* 292 * XXX This workaround makes the firmware behave more correctly once 293 * we are associated, regularly giving us statistics notifications, 294 * as well as signaling missed beacons to us. 295 * Since we only call iwm_mac_ctxt_add() and 296 * iwm_mac_ctxt_changed() when already authenticating or 297 * associating, ni->ni_bssid should always make sense here. 298 */ 299 if (ivp->iv_auth) { 300 IEEE80211_ADDR_COPY(cmd->bssid_addr, ni->ni_bssid); 301 } else { 302 /* XXX Or maybe all zeroes address? */ 303 IEEE80211_ADDR_COPY(cmd->bssid_addr, ieee80211broadcastaddr); 304 } 305 #endif 306 307 /* 308 * Default to 2ghz if no node information is given. 309 */ 310 if (in && in->in_ni.ni_chan != IEEE80211_CHAN_ANYC) { 311 is2ghz = !! IEEE80211_IS_CHAN_2GHZ(in->in_ni.ni_chan); 312 } else { 313 is2ghz = 1; 314 } 315 iwm_ack_rates(sc, is2ghz, &cck_ack_rates, &ofdm_ack_rates, in); 316 cmd->cck_rates = htole32(cck_ack_rates); 317 cmd->ofdm_rates = htole32(ofdm_ack_rates); 318 319 cmd->cck_short_preamble 320 = htole32((ic->ic_flags & IEEE80211_F_SHPREAMBLE) 321 ? IWM_MAC_FLG_SHORT_PREAMBLE : 0); 322 cmd->short_slot 323 = htole32((ic->ic_flags & IEEE80211_F_SHSLOT) 324 ? IWM_MAC_FLG_SHORT_SLOT : 0); 325 326 /* 327 * XXX TODO: if we're doing QOS.. 328 * cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA) 329 */ 330 331 for (i = 0; i < WME_NUM_AC; i++) { 332 uint8_t txf = iwm_ac_to_tx_fifo[i]; 333 334 cmd->ac[txf].cw_min = htole16(ivp->queue_params[i].cw_min); 335 cmd->ac[txf].cw_max = htole16(ivp->queue_params[i].cw_max); 336 cmd->ac[txf].edca_txop = 337 htole16(ivp->queue_params[i].edca_txop); 338 cmd->ac[txf].aifsn = ivp->queue_params[i].aifsn; 339 cmd->ac[txf].fifos_mask = (1 << txf); 340 } 341 342 if (ivp->have_wme) 343 cmd->qos_flags |= htole32(IWM_MAC_QOS_FLG_UPDATE_EDCA); 344 345 if (ic->ic_flags & IEEE80211_F_USEPROT) 346 cmd->protection_flags |= htole32(IWM_MAC_PROT_FLG_TGG_PROTECT); 347 348 cmd->filter_flags = htole32(IWM_MAC_FILTER_ACCEPT_GRP); 349 } 350 351 static int 352 iwm_mac_ctxt_send_cmd(struct iwm_softc *sc, struct iwm_mac_ctx_cmd *cmd) 353 { 354 int ret = iwm_send_cmd_pdu(sc, IWM_MAC_CONTEXT_CMD, IWM_CMD_SYNC, 355 sizeof(*cmd), cmd); 356 if (ret) 357 device_printf(sc->sc_dev, 358 "%s: Failed to send MAC context (action:%d): %d\n", 359 __func__, le32toh(cmd->action), ret); 360 return ret; 361 } 362 363 /* 364 * Fill the specific data for mac context of type station or p2p client 365 */ 366 static void 367 iwm_mac_ctxt_cmd_fill_sta(struct iwm_softc *sc, struct iwm_node *in, 368 struct iwm_mac_data_sta *ctxt_sta, int force_assoc_off) 369 { 370 struct ieee80211_node *ni = &in->in_ni; 371 unsigned dtim_period, dtim_count; 372 struct ieee80211com *ic = &sc->sc_ic; 373 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 374 375 /* will this work? */ 376 dtim_period = vap->iv_dtim_period; 377 dtim_count = vap->iv_dtim_count; 378 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 379 "%s: force_assoc_off=%d\n", __func__, force_assoc_off); 380 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 381 "DTIM: period=%d count=%d\n", dtim_period, dtim_count); 382 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 383 "BEACON: tsf: %llu, ni_intval=%d\n", 384 (unsigned long long) le64toh(ni->ni_tstamp.tsf), 385 ni->ni_intval); 386 387 /* We need the dtim_period to set the MAC as associated */ 388 if (in->in_assoc && dtim_period && !force_assoc_off) { 389 uint64_t tsf; 390 uint32_t dtim_offs; 391 392 /* 393 * The DTIM count counts down, so when it is N that means N 394 * more beacon intervals happen until the DTIM TBTT. Therefore 395 * add this to the current time. If that ends up being in the 396 * future, the firmware will handle it. 397 * 398 * Also note that the system_timestamp (which we get here as 399 * "sync_device_ts") and TSF timestamp aren't at exactly the 400 * same offset in the frame -- the TSF is at the first symbol 401 * of the TSF, the system timestamp is at signal acquisition 402 * time. This means there's an offset between them of at most 403 * a few hundred microseconds (24 * 8 bits + PLCP time gives 404 * 384us in the longest case), this is currently not relevant 405 * as the firmware wakes up around 2ms before the TBTT. 406 */ 407 dtim_offs = dtim_count * ni->ni_intval; 408 /* convert TU to usecs */ 409 dtim_offs *= 1024; 410 411 /* 412 * net80211: TSF is in 802.11 order, so convert up to local 413 * ordering before we manipulate things. 414 */ 415 tsf = le64toh(ni->ni_tstamp.tsf); 416 417 ctxt_sta->dtim_tsf = htole64(tsf + dtim_offs); 418 ctxt_sta->dtim_time = htole32(tsf + dtim_offs); 419 420 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD, 421 "DTIM TBTT is 0x%llx/0x%x, offset %d\n", 422 (long long)le64toh(ctxt_sta->dtim_tsf), 423 le32toh(ctxt_sta->dtim_time), dtim_offs); 424 425 ctxt_sta->is_assoc = htole32(1); 426 } else { 427 ctxt_sta->is_assoc = htole32(0); 428 } 429 430 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD | IWM_DEBUG_BEACON, 431 "%s: ni_intval: %d, bi_reciprocal: %d, dtim_interval: %d, dtim_reciprocal: %d\n", 432 __func__, 433 ni->ni_intval, 434 iwm_reciprocal(ni->ni_intval), 435 ni->ni_intval * dtim_period, 436 iwm_reciprocal(ni->ni_intval * dtim_period)); 437 438 ctxt_sta->bi = htole32(ni->ni_intval); 439 ctxt_sta->bi_reciprocal = htole32(iwm_reciprocal(ni->ni_intval)); 440 ctxt_sta->dtim_interval = htole32(ni->ni_intval * dtim_period); 441 ctxt_sta->dtim_reciprocal = 442 htole32(iwm_reciprocal(ni->ni_intval * dtim_period)); 443 444 /* 10 = CONN_MAX_LISTEN_INTERVAL */ 445 ctxt_sta->listen_interval = htole32(10); 446 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD | IWM_DEBUG_BEACON, 447 "%s: associd=%d\n", __func__, IEEE80211_AID(ni->ni_associd)); 448 ctxt_sta->assoc_id = htole32(IEEE80211_AID(ni->ni_associd)); 449 } 450 451 static int 452 iwm_mac_ctxt_cmd_station(struct iwm_softc *sc, struct ieee80211vap *vap, 453 uint32_t action) 454 { 455 struct ieee80211_node *ni = vap->iv_bss; 456 struct iwm_node *in = IWM_NODE(ni); 457 struct iwm_mac_ctx_cmd cmd = {}; 458 459 IWM_DPRINTF(sc, IWM_DEBUG_RESET, 460 "%s: called; action=%d\n", __func__, action); 461 462 /* Fill the common data for all mac context types */ 463 iwm_mac_ctxt_cmd_common(sc, in, &cmd, action); 464 465 /* Allow beacons to pass through as long as we are not associated,or we 466 * do not have dtim period information */ 467 if (!in->in_assoc || !vap->iv_dtim_period) 468 cmd.filter_flags |= htole32(IWM_MAC_FILTER_IN_BEACON); 469 else 470 cmd.filter_flags &= ~htole32(IWM_MAC_FILTER_IN_BEACON); 471 472 /* Fill the data specific for station mode */ 473 iwm_mac_ctxt_cmd_fill_sta(sc, in, 474 &cmd.sta, action == IWM_FW_CTXT_ACTION_ADD); 475 476 return iwm_mac_ctxt_send_cmd(sc, &cmd); 477 } 478 479 static int 480 iwm_mac_ctx_send(struct iwm_softc *sc, struct ieee80211vap *vap, 481 uint32_t action) 482 { 483 return iwm_mac_ctxt_cmd_station(sc, vap, action); 484 } 485 486 int 487 iwm_mac_ctxt_add(struct iwm_softc *sc, struct ieee80211vap *vap) 488 { 489 struct iwm_vap *iv = IWM_VAP(vap); 490 int ret; 491 492 if (iv->is_uploaded != 0) { 493 device_printf(sc->sc_dev, "%s: called; uploaded != 0\n", 494 __func__); 495 return (EIO); 496 } 497 498 ret = iwm_mac_ctx_send(sc, vap, IWM_FW_CTXT_ACTION_ADD); 499 if (ret) 500 return (ret); 501 iv->is_uploaded = 1; 502 return (0); 503 } 504 505 int 506 iwm_mac_ctxt_changed(struct iwm_softc *sc, struct ieee80211vap *vap) 507 { 508 struct iwm_vap *iv = IWM_VAP(vap); 509 510 if (iv->is_uploaded == 0) { 511 device_printf(sc->sc_dev, "%s: called; uploaded = 0\n", 512 __func__); 513 return (EIO); 514 } 515 return iwm_mac_ctx_send(sc, vap, IWM_FW_CTXT_ACTION_MODIFY); 516 } 517 518 #if 0 519 static int 520 iwm_mac_ctxt_remove(struct iwm_softc *sc, struct iwm_node *in) 521 { 522 struct iwm_mac_ctx_cmd cmd; 523 int ret; 524 525 if (!in->in_uploaded) { 526 device_printf(sc->sc_dev, 527 "attempt to remove !uploaded node %p", in); 528 return EIO; 529 } 530 531 memset(&cmd, 0, sizeof(cmd)); 532 533 cmd.id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(IWM_DEFAULT_MACID, 534 IWM_DEFAULT_COLOR)); 535 cmd.action = htole32(IWM_FW_CTXT_ACTION_REMOVE); 536 537 ret = iwm_send_cmd_pdu(sc, 538 IWM_MAC_CONTEXT_CMD, IWM_CMD_SYNC, sizeof(cmd), &cmd); 539 if (ret) { 540 device_printf(sc->sc_dev, 541 "Failed to remove MAC context: %d\n", ret); 542 return ret; 543 } 544 in->in_uploaded = 0; 545 546 return 0; 547 } 548 #endif 549