Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/dev/mwl/if_mwl.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2007-2009 Sam Leffler, Errno Consulting 5 * Copyright (c) 2007-2008 Marvell Semiconductor, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer, 13 * without modification. 14 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 15 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 16 * redistribution must be conditioned upon including a substantially 17 * similar Disclaimer requirement for further binary redistribution. 18 * 19 * NO WARRANTY 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 23 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 24 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 25 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 28 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGES. 31 */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 /* 37 * Driver for the Marvell 88W8363 Wireless LAN controller. 38 */ 39 40 #include "opt_inet.h" 41 #include "opt_mwl.h" 42 #include "opt_wlan.h" 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/sysctl.h> 47 #include <sys/mbuf.h> 48 #include <sys/malloc.h> 49 #include <sys/lock.h> 50 #include <sys/mutex.h> 51 #include <sys/kernel.h> 52 #include <sys/socket.h> 53 #include <sys/sockio.h> 54 #include <sys/errno.h> 55 #include <sys/callout.h> 56 #include <sys/bus.h> 57 #include <sys/endian.h> 58 #include <sys/kthread.h> 59 #include <sys/taskqueue.h> 60 61 #include <machine/bus.h> 62 63 #include <net/if.h> 64 #include <net/if_var.h> 65 #include <net/if_dl.h> 66 #include <net/if_media.h> 67 #include <net/if_types.h> 68 #include <net/if_arp.h> 69 #include <net/ethernet.h> 70 #include <net/if_llc.h> 71 72 #include <net/bpf.h> 73 74 #include <net80211/ieee80211_var.h> 75 #include <net80211/ieee80211_input.h> 76 #include <net80211/ieee80211_regdomain.h> 77 78 #ifdef INET 79 #include <netinet/in.h> 80 #include <netinet/if_ether.h> 81 #endif /* INET */ 82 83 #include <dev/mwl/if_mwlvar.h> 84 #include <dev/mwl/mwldiag.h> 85 86 static struct ieee80211vap *mwl_vap_create(struct ieee80211com *, 87 const char [IFNAMSIZ], int, enum ieee80211_opmode, int, 88 const uint8_t [IEEE80211_ADDR_LEN], 89 const uint8_t [IEEE80211_ADDR_LEN]); 90 static void mwl_vap_delete(struct ieee80211vap *); 91 static int mwl_setupdma(struct mwl_softc *); 92 static int mwl_hal_reset(struct mwl_softc *sc); 93 static int mwl_init(struct mwl_softc *); 94 static void mwl_parent(struct ieee80211com *); 95 static int mwl_reset(struct ieee80211vap *, u_long); 96 static void mwl_stop(struct mwl_softc *); 97 static void mwl_start(struct mwl_softc *); 98 static int mwl_transmit(struct ieee80211com *, struct mbuf *); 99 static int mwl_raw_xmit(struct ieee80211_node *, struct mbuf *, 100 const struct ieee80211_bpf_params *); 101 static int mwl_media_change(struct ifnet *); 102 static void mwl_watchdog(void *); 103 static int mwl_ioctl(struct ieee80211com *, u_long, void *); 104 static void mwl_radar_proc(void *, int); 105 static void mwl_chanswitch_proc(void *, int); 106 static void mwl_bawatchdog_proc(void *, int); 107 static int mwl_key_alloc(struct ieee80211vap *, 108 struct ieee80211_key *, 109 ieee80211_keyix *, ieee80211_keyix *); 110 static int mwl_key_delete(struct ieee80211vap *, 111 const struct ieee80211_key *); 112 static int mwl_key_set(struct ieee80211vap *, 113 const struct ieee80211_key *); 114 static int _mwl_key_set(struct ieee80211vap *, 115 const struct ieee80211_key *, 116 const uint8_t mac[IEEE80211_ADDR_LEN]); 117 static int mwl_mode_init(struct mwl_softc *); 118 static void mwl_update_mcast(struct ieee80211com *); 119 static void mwl_update_promisc(struct ieee80211com *); 120 static void mwl_updateslot(struct ieee80211com *); 121 static int mwl_beacon_setup(struct ieee80211vap *); 122 static void mwl_beacon_update(struct ieee80211vap *, int); 123 #ifdef MWL_HOST_PS_SUPPORT 124 static void mwl_update_ps(struct ieee80211vap *, int); 125 static int mwl_set_tim(struct ieee80211_node *, int); 126 #endif 127 static int mwl_dma_setup(struct mwl_softc *); 128 static void mwl_dma_cleanup(struct mwl_softc *); 129 static struct ieee80211_node *mwl_node_alloc(struct ieee80211vap *, 130 const uint8_t [IEEE80211_ADDR_LEN]); 131 static void mwl_node_cleanup(struct ieee80211_node *); 132 static void mwl_node_drain(struct ieee80211_node *); 133 static void mwl_node_getsignal(const struct ieee80211_node *, 134 int8_t *, int8_t *); 135 static void mwl_node_getmimoinfo(const struct ieee80211_node *, 136 struct ieee80211_mimo_info *); 137 static int mwl_rxbuf_init(struct mwl_softc *, struct mwl_rxbuf *); 138 static void mwl_rx_proc(void *, int); 139 static void mwl_txq_init(struct mwl_softc *sc, struct mwl_txq *, int); 140 static int mwl_tx_setup(struct mwl_softc *, int, int); 141 static int mwl_wme_update(struct ieee80211com *); 142 static void mwl_tx_cleanupq(struct mwl_softc *, struct mwl_txq *); 143 static void mwl_tx_cleanup(struct mwl_softc *); 144 static uint16_t mwl_calcformat(uint8_t rate, const struct ieee80211_node *); 145 static int mwl_tx_start(struct mwl_softc *, struct ieee80211_node *, 146 struct mwl_txbuf *, struct mbuf *); 147 static void mwl_tx_proc(void *, int); 148 static int mwl_chan_set(struct mwl_softc *, struct ieee80211_channel *); 149 static void mwl_draintxq(struct mwl_softc *); 150 static void mwl_cleartxq(struct mwl_softc *, struct ieee80211vap *); 151 static int mwl_recv_action(struct ieee80211_node *, 152 const struct ieee80211_frame *, 153 const uint8_t *, const uint8_t *); 154 static int mwl_addba_request(struct ieee80211_node *, 155 struct ieee80211_tx_ampdu *, int dialogtoken, 156 int baparamset, int batimeout); 157 static int mwl_addba_response(struct ieee80211_node *, 158 struct ieee80211_tx_ampdu *, int status, 159 int baparamset, int batimeout); 160 static void mwl_addba_stop(struct ieee80211_node *, 161 struct ieee80211_tx_ampdu *); 162 static int mwl_startrecv(struct mwl_softc *); 163 static MWL_HAL_APMODE mwl_getapmode(const struct ieee80211vap *, 164 struct ieee80211_channel *); 165 static int mwl_setapmode(struct ieee80211vap *, struct ieee80211_channel*); 166 static void mwl_scan_start(struct ieee80211com *); 167 static void mwl_scan_end(struct ieee80211com *); 168 static void mwl_set_channel(struct ieee80211com *); 169 static int mwl_peerstadb(struct ieee80211_node *, 170 int aid, int staid, MWL_HAL_PEERINFO *pi); 171 static int mwl_localstadb(struct ieee80211vap *); 172 static int mwl_newstate(struct ieee80211vap *, enum ieee80211_state, int); 173 static int allocstaid(struct mwl_softc *sc, int aid); 174 static void delstaid(struct mwl_softc *sc, int staid); 175 static void mwl_newassoc(struct ieee80211_node *, int); 176 static void mwl_agestations(void *); 177 static int mwl_setregdomain(struct ieee80211com *, 178 struct ieee80211_regdomain *, int, 179 struct ieee80211_channel []); 180 static void mwl_getradiocaps(struct ieee80211com *, int, int *, 181 struct ieee80211_channel []); 182 static int mwl_getchannels(struct mwl_softc *); 183 184 static void mwl_sysctlattach(struct mwl_softc *); 185 static void mwl_announce(struct mwl_softc *); 186 187 SYSCTL_NODE(_hw, OID_AUTO, mwl, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 188 "Marvell driver parameters"); 189 190 static int mwl_rxdesc = MWL_RXDESC; /* # rx desc's to allocate */ 191 SYSCTL_INT(_hw_mwl, OID_AUTO, rxdesc, CTLFLAG_RW, &mwl_rxdesc, 192 0, "rx descriptors allocated"); 193 static int mwl_rxbuf = MWL_RXBUF; /* # rx buffers to allocate */ 194 SYSCTL_INT(_hw_mwl, OID_AUTO, rxbuf, CTLFLAG_RWTUN, &mwl_rxbuf, 195 0, "rx buffers allocated"); 196 static int mwl_txbuf = MWL_TXBUF; /* # tx buffers to allocate */ 197 SYSCTL_INT(_hw_mwl, OID_AUTO, txbuf, CTLFLAG_RWTUN, &mwl_txbuf, 198 0, "tx buffers allocated"); 199 static int mwl_txcoalesce = 8; /* # tx packets to q before poking f/w*/ 200 SYSCTL_INT(_hw_mwl, OID_AUTO, txcoalesce, CTLFLAG_RWTUN, &mwl_txcoalesce, 201 0, "tx buffers to send at once"); 202 static int mwl_rxquota = MWL_RXBUF; /* # max buffers to process */ 203 SYSCTL_INT(_hw_mwl, OID_AUTO, rxquota, CTLFLAG_RWTUN, &mwl_rxquota, 204 0, "max rx buffers to process per interrupt"); 205 static int mwl_rxdmalow = 3; /* # min buffers for wakeup */ 206 SYSCTL_INT(_hw_mwl, OID_AUTO, rxdmalow, CTLFLAG_RWTUN, &mwl_rxdmalow, 207 0, "min free rx buffers before restarting traffic"); 208 209 #ifdef MWL_DEBUG 210 static int mwl_debug = 0; 211 SYSCTL_INT(_hw_mwl, OID_AUTO, debug, CTLFLAG_RWTUN, &mwl_debug, 212 0, "control debugging printfs"); 213 enum { 214 MWL_DEBUG_XMIT = 0x00000001, /* basic xmit operation */ 215 MWL_DEBUG_XMIT_DESC = 0x00000002, /* xmit descriptors */ 216 MWL_DEBUG_RECV = 0x00000004, /* basic recv operation */ 217 MWL_DEBUG_RECV_DESC = 0x00000008, /* recv descriptors */ 218 MWL_DEBUG_RESET = 0x00000010, /* reset processing */ 219 MWL_DEBUG_BEACON = 0x00000020, /* beacon handling */ 220 MWL_DEBUG_INTR = 0x00000040, /* ISR */ 221 MWL_DEBUG_TX_PROC = 0x00000080, /* tx ISR proc */ 222 MWL_DEBUG_RX_PROC = 0x00000100, /* rx ISR proc */ 223 MWL_DEBUG_KEYCACHE = 0x00000200, /* key cache management */ 224 MWL_DEBUG_STATE = 0x00000400, /* 802.11 state transitions */ 225 MWL_DEBUG_NODE = 0x00000800, /* node management */ 226 MWL_DEBUG_RECV_ALL = 0x00001000, /* trace all frames (beacons) */ 227 MWL_DEBUG_TSO = 0x00002000, /* TSO processing */ 228 MWL_DEBUG_AMPDU = 0x00004000, /* BA stream handling */ 229 MWL_DEBUG_ANY = 0xffffffff 230 }; 231 #define IS_BEACON(wh) \ 232 ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK|IEEE80211_FC0_SUBTYPE_MASK)) == \ 233 (IEEE80211_FC0_TYPE_MGT|IEEE80211_FC0_SUBTYPE_BEACON)) 234 #define IFF_DUMPPKTS_RECV(sc, wh) \ 235 ((sc->sc_debug & MWL_DEBUG_RECV) && \ 236 ((sc->sc_debug & MWL_DEBUG_RECV_ALL) || !IS_BEACON(wh))) 237 #define IFF_DUMPPKTS_XMIT(sc) \ 238 (sc->sc_debug & MWL_DEBUG_XMIT) 239 240 #define DPRINTF(sc, m, fmt, ...) do { \ 241 if (sc->sc_debug & (m)) \ 242 printf(fmt, __VA_ARGS__); \ 243 } while (0) 244 #define KEYPRINTF(sc, hk, mac) do { \ 245 if (sc->sc_debug & MWL_DEBUG_KEYCACHE) \ 246 mwl_keyprint(sc, __func__, hk, mac); \ 247 } while (0) 248 static void mwl_printrxbuf(const struct mwl_rxbuf *bf, u_int ix); 249 static void mwl_printtxbuf(const struct mwl_txbuf *bf, u_int qnum, u_int ix); 250 #else 251 #define IFF_DUMPPKTS_RECV(sc, wh) 0 252 #define IFF_DUMPPKTS_XMIT(sc) 0 253 #define DPRINTF(sc, m, fmt, ...) do { (void )sc; } while (0) 254 #define KEYPRINTF(sc, k, mac) do { (void )sc; } while (0) 255 #endif 256 257 static MALLOC_DEFINE(M_MWLDEV, "mwldev", "mwl driver dma buffers"); 258 259 /* 260 * Each packet has fixed front matter: a 2-byte length 261 * of the payload, followed by a 4-address 802.11 header 262 * (regardless of the actual header and always w/o any 263 * QoS header). The payload then follows. 264 */ 265 struct mwltxrec { 266 uint16_t fwlen; 267 struct ieee80211_frame_addr4 wh; 268 } __packed; 269 270 /* 271 * Read/Write shorthands for accesses to BAR 0. Note 272 * that all BAR 1 operations are done in the "hal" and 273 * there should be no reference to them here. 274 */ 275 #ifdef MWL_DEBUG 276 static __inline uint32_t 277 RD4(struct mwl_softc *sc, bus_size_t off) 278 { 279 return bus_space_read_4(sc->sc_io0t, sc->sc_io0h, off); 280 } 281 #endif 282 283 static __inline void 284 WR4(struct mwl_softc *sc, bus_size_t off, uint32_t val) 285 { 286 bus_space_write_4(sc->sc_io0t, sc->sc_io0h, off, val); 287 } 288 289 int 290 mwl_attach(uint16_t devid, struct mwl_softc *sc) 291 { 292 struct ieee80211com *ic = &sc->sc_ic; 293 struct mwl_hal *mh; 294 int error = 0; 295 296 DPRINTF(sc, MWL_DEBUG_ANY, "%s: devid 0x%x\n", __func__, devid); 297 298 /* 299 * Setup the RX free list lock early, so it can be consistently 300 * removed. 301 */ 302 MWL_RXFREE_INIT(sc); 303 304 mh = mwl_hal_attach(sc->sc_dev, devid, 305 sc->sc_io1h, sc->sc_io1t, sc->sc_dmat); 306 if (mh == NULL) { 307 device_printf(sc->sc_dev, "unable to attach HAL\n"); 308 error = EIO; 309 goto bad; 310 } 311 sc->sc_mh = mh; 312 /* 313 * Load firmware so we can get setup. We arbitrarily 314 * pick station firmware; we'll re-load firmware as 315 * needed so setting up the wrong mode isn't a big deal. 316 */ 317 if (mwl_hal_fwload(mh, NULL) != 0) { 318 device_printf(sc->sc_dev, "unable to setup builtin firmware\n"); 319 error = EIO; 320 goto bad1; 321 } 322 if (mwl_hal_gethwspecs(mh, &sc->sc_hwspecs) != 0) { 323 device_printf(sc->sc_dev, "unable to fetch h/w specs\n"); 324 error = EIO; 325 goto bad1; 326 } 327 error = mwl_getchannels(sc); 328 if (error != 0) 329 goto bad1; 330 331 sc->sc_txantenna = 0; /* h/w default */ 332 sc->sc_rxantenna = 0; /* h/w default */ 333 sc->sc_invalid = 0; /* ready to go, enable int handling */ 334 sc->sc_ageinterval = MWL_AGEINTERVAL; 335 336 /* 337 * Allocate tx+rx descriptors and populate the lists. 338 * We immediately push the information to the firmware 339 * as otherwise it gets upset. 340 */ 341 error = mwl_dma_setup(sc); 342 if (error != 0) { 343 device_printf(sc->sc_dev, "failed to setup descriptors: %d\n", 344 error); 345 goto bad1; 346 } 347 error = mwl_setupdma(sc); /* push to firmware */ 348 if (error != 0) /* NB: mwl_setupdma prints msg */ 349 goto bad1; 350 351 callout_init(&sc->sc_timer, 1); 352 callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 353 mbufq_init(&sc->sc_snd, ifqmaxlen); 354 355 sc->sc_tq = taskqueue_create("mwl_taskq", M_NOWAIT, 356 taskqueue_thread_enqueue, &sc->sc_tq); 357 taskqueue_start_threads(&sc->sc_tq, 1, PI_NET, 358 "%s taskq", device_get_nameunit(sc->sc_dev)); 359 360 NET_TASK_INIT(&sc->sc_rxtask, 0, mwl_rx_proc, sc); 361 TASK_INIT(&sc->sc_radartask, 0, mwl_radar_proc, sc); 362 TASK_INIT(&sc->sc_chanswitchtask, 0, mwl_chanswitch_proc, sc); 363 TASK_INIT(&sc->sc_bawatchdogtask, 0, mwl_bawatchdog_proc, sc); 364 365 /* NB: insure BK queue is the lowest priority h/w queue */ 366 if (!mwl_tx_setup(sc, WME_AC_BK, MWL_WME_AC_BK)) { 367 device_printf(sc->sc_dev, 368 "unable to setup xmit queue for %s traffic!\n", 369 ieee80211_wme_acnames[WME_AC_BK]); 370 error = EIO; 371 goto bad2; 372 } 373 if (!mwl_tx_setup(sc, WME_AC_BE, MWL_WME_AC_BE) || 374 !mwl_tx_setup(sc, WME_AC_VI, MWL_WME_AC_VI) || 375 !mwl_tx_setup(sc, WME_AC_VO, MWL_WME_AC_VO)) { 376 /* 377 * Not enough hardware tx queues to properly do WME; 378 * just punt and assign them all to the same h/w queue. 379 * We could do a better job of this if, for example, 380 * we allocate queues when we switch from station to 381 * AP mode. 382 */ 383 if (sc->sc_ac2q[WME_AC_VI] != NULL) 384 mwl_tx_cleanupq(sc, sc->sc_ac2q[WME_AC_VI]); 385 if (sc->sc_ac2q[WME_AC_BE] != NULL) 386 mwl_tx_cleanupq(sc, sc->sc_ac2q[WME_AC_BE]); 387 sc->sc_ac2q[WME_AC_BE] = sc->sc_ac2q[WME_AC_BK]; 388 sc->sc_ac2q[WME_AC_VI] = sc->sc_ac2q[WME_AC_BK]; 389 sc->sc_ac2q[WME_AC_VO] = sc->sc_ac2q[WME_AC_BK]; 390 } 391 TASK_INIT(&sc->sc_txtask, 0, mwl_tx_proc, sc); 392 393 ic->ic_softc = sc; 394 ic->ic_name = device_get_nameunit(sc->sc_dev); 395 /* XXX not right but it's not used anywhere important */ 396 ic->ic_phytype = IEEE80211_T_OFDM; 397 ic->ic_opmode = IEEE80211_M_STA; 398 ic->ic_caps = 399 IEEE80211_C_STA /* station mode supported */ 400 | IEEE80211_C_HOSTAP /* hostap mode */ 401 | IEEE80211_C_MONITOR /* monitor mode */ 402 #if 0 403 | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */ 404 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 405 #endif 406 | IEEE80211_C_MBSS /* mesh point link mode */ 407 | IEEE80211_C_WDS /* WDS supported */ 408 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 409 | IEEE80211_C_SHSLOT /* short slot time supported */ 410 | IEEE80211_C_WME /* WME/WMM supported */ 411 | IEEE80211_C_BURST /* xmit bursting supported */ 412 | IEEE80211_C_WPA /* capable of WPA1+WPA2 */ 413 | IEEE80211_C_BGSCAN /* capable of bg scanning */ 414 | IEEE80211_C_TXFRAG /* handle tx frags */ 415 | IEEE80211_C_TXPMGT /* capable of txpow mgt */ 416 | IEEE80211_C_DFS /* DFS supported */ 417 ; 418 419 ic->ic_htcaps = 420 IEEE80211_HTCAP_SMPS_ENA /* SM PS mode enabled */ 421 | IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width */ 422 | IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */ 423 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */ 424 | IEEE80211_HTCAP_RXSTBC_2STREAM/* 1-2 spatial streams */ 425 #if MWL_AGGR_SIZE == 7935 426 | IEEE80211_HTCAP_MAXAMSDU_7935 /* max A-MSDU length */ 427 #else 428 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */ 429 #endif 430 #if 0 431 | IEEE80211_HTCAP_PSMP /* PSMP supported */ 432 | IEEE80211_HTCAP_40INTOLERANT /* 40MHz intolerant */ 433 #endif 434 /* s/w capabilities */ 435 | IEEE80211_HTC_HT /* HT operation */ 436 | IEEE80211_HTC_AMPDU /* tx A-MPDU */ 437 | IEEE80211_HTC_AMSDU /* tx A-MSDU */ 438 | IEEE80211_HTC_SMPS /* SMPS available */ 439 ; 440 441 /* 442 * Mark h/w crypto support. 443 * XXX no way to query h/w support. 444 */ 445 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP 446 | IEEE80211_CRYPTO_AES_CCM 447 | IEEE80211_CRYPTO_TKIP 448 | IEEE80211_CRYPTO_TKIPMIC 449 ; 450 /* 451 * Transmit requires space in the packet for a special 452 * format transmit record and optional padding between 453 * this record and the payload. Ask the net80211 layer 454 * to arrange this when encapsulating packets so we can 455 * add it efficiently. 456 */ 457 ic->ic_headroom = sizeof(struct mwltxrec) - 458 sizeof(struct ieee80211_frame); 459 460 IEEE80211_ADDR_COPY(ic->ic_macaddr, sc->sc_hwspecs.macAddr); 461 462 /* call MI attach routine. */ 463 ieee80211_ifattach(ic); 464 ic->ic_setregdomain = mwl_setregdomain; 465 ic->ic_getradiocaps = mwl_getradiocaps; 466 /* override default methods */ 467 ic->ic_raw_xmit = mwl_raw_xmit; 468 ic->ic_newassoc = mwl_newassoc; 469 ic->ic_updateslot = mwl_updateslot; 470 ic->ic_update_mcast = mwl_update_mcast; 471 ic->ic_update_promisc = mwl_update_promisc; 472 ic->ic_wme.wme_update = mwl_wme_update; 473 ic->ic_transmit = mwl_transmit; 474 ic->ic_ioctl = mwl_ioctl; 475 ic->ic_parent = mwl_parent; 476 477 ic->ic_node_alloc = mwl_node_alloc; 478 sc->sc_node_cleanup = ic->ic_node_cleanup; 479 ic->ic_node_cleanup = mwl_node_cleanup; 480 sc->sc_node_drain = ic->ic_node_drain; 481 ic->ic_node_drain = mwl_node_drain; 482 ic->ic_node_getsignal = mwl_node_getsignal; 483 ic->ic_node_getmimoinfo = mwl_node_getmimoinfo; 484 485 ic->ic_scan_start = mwl_scan_start; 486 ic->ic_scan_end = mwl_scan_end; 487 ic->ic_set_channel = mwl_set_channel; 488 489 sc->sc_recv_action = ic->ic_recv_action; 490 ic->ic_recv_action = mwl_recv_action; 491 sc->sc_addba_request = ic->ic_addba_request; 492 ic->ic_addba_request = mwl_addba_request; 493 sc->sc_addba_response = ic->ic_addba_response; 494 ic->ic_addba_response = mwl_addba_response; 495 sc->sc_addba_stop = ic->ic_addba_stop; 496 ic->ic_addba_stop = mwl_addba_stop; 497 498 ic->ic_vap_create = mwl_vap_create; 499 ic->ic_vap_delete = mwl_vap_delete; 500 501 ieee80211_radiotap_attach(ic, 502 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 503 MWL_TX_RADIOTAP_PRESENT, 504 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 505 MWL_RX_RADIOTAP_PRESENT); 506 /* 507 * Setup dynamic sysctl's now that country code and 508 * regdomain are available from the hal. 509 */ 510 mwl_sysctlattach(sc); 511 512 if (bootverbose) 513 ieee80211_announce(ic); 514 mwl_announce(sc); 515 return 0; 516 bad2: 517 mwl_dma_cleanup(sc); 518 bad1: 519 mwl_hal_detach(mh); 520 bad: 521 MWL_RXFREE_DESTROY(sc); 522 sc->sc_invalid = 1; 523 return error; 524 } 525 526 int 527 mwl_detach(struct mwl_softc *sc) 528 { 529 struct ieee80211com *ic = &sc->sc_ic; 530 531 MWL_LOCK(sc); 532 mwl_stop(sc); 533 MWL_UNLOCK(sc); 534 /* 535 * NB: the order of these is important: 536 * o call the 802.11 layer before detaching the hal to 537 * insure callbacks into the driver to delete global 538 * key cache entries can be handled 539 * o reclaim the tx queue data structures after calling 540 * the 802.11 layer as we'll get called back to reclaim 541 * node state and potentially want to use them 542 * o to cleanup the tx queues the hal is called, so detach 543 * it last 544 * Other than that, it's straightforward... 545 */ 546 ieee80211_ifdetach(ic); 547 callout_drain(&sc->sc_watchdog); 548 mwl_dma_cleanup(sc); 549 MWL_RXFREE_DESTROY(sc); 550 mwl_tx_cleanup(sc); 551 mwl_hal_detach(sc->sc_mh); 552 mbufq_drain(&sc->sc_snd); 553 554 return 0; 555 } 556 557 /* 558 * MAC address handling for multiple BSS on the same radio. 559 * The first vap uses the MAC address from the EEPROM. For 560 * subsequent vap's we set the U/L bit (bit 1) in the MAC 561 * address and use the next six bits as an index. 562 */ 563 static void 564 assign_address(struct mwl_softc *sc, uint8_t mac[IEEE80211_ADDR_LEN], int clone) 565 { 566 int i; 567 568 if (clone && mwl_hal_ismbsscapable(sc->sc_mh)) { 569 /* NB: we only do this if h/w supports multiple bssid */ 570 for (i = 0; i < 32; i++) 571 if ((sc->sc_bssidmask & (1<<i)) == 0) 572 break; 573 if (i != 0) 574 mac[0] |= (i << 2)|0x2; 575 } else 576 i = 0; 577 sc->sc_bssidmask |= 1<<i; 578 if (i == 0) 579 sc->sc_nbssid0++; 580 } 581 582 static void 583 reclaim_address(struct mwl_softc *sc, const uint8_t mac[IEEE80211_ADDR_LEN]) 584 { 585 int i = mac[0] >> 2; 586 if (i != 0 || --sc->sc_nbssid0 == 0) 587 sc->sc_bssidmask &= ~(1<<i); 588 } 589 590 static struct ieee80211vap * 591 mwl_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 592 enum ieee80211_opmode opmode, int flags, 593 const uint8_t bssid[IEEE80211_ADDR_LEN], 594 const uint8_t mac0[IEEE80211_ADDR_LEN]) 595 { 596 struct mwl_softc *sc = ic->ic_softc; 597 struct mwl_hal *mh = sc->sc_mh; 598 struct ieee80211vap *vap, *apvap; 599 struct mwl_hal_vap *hvap; 600 struct mwl_vap *mvp; 601 uint8_t mac[IEEE80211_ADDR_LEN]; 602 603 IEEE80211_ADDR_COPY(mac, mac0); 604 switch (opmode) { 605 case IEEE80211_M_HOSTAP: 606 case IEEE80211_M_MBSS: 607 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 608 assign_address(sc, mac, flags & IEEE80211_CLONE_BSSID); 609 hvap = mwl_hal_newvap(mh, MWL_HAL_AP, mac); 610 if (hvap == NULL) { 611 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 612 reclaim_address(sc, mac); 613 return NULL; 614 } 615 break; 616 case IEEE80211_M_STA: 617 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 618 assign_address(sc, mac, flags & IEEE80211_CLONE_BSSID); 619 hvap = mwl_hal_newvap(mh, MWL_HAL_STA, mac); 620 if (hvap == NULL) { 621 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 622 reclaim_address(sc, mac); 623 return NULL; 624 } 625 /* no h/w beacon miss support; always use s/w */ 626 flags |= IEEE80211_CLONE_NOBEACONS; 627 break; 628 case IEEE80211_M_WDS: 629 hvap = NULL; /* NB: we use associated AP vap */ 630 if (sc->sc_napvaps == 0) 631 return NULL; /* no existing AP vap */ 632 break; 633 case IEEE80211_M_MONITOR: 634 hvap = NULL; 635 break; 636 case IEEE80211_M_IBSS: 637 case IEEE80211_M_AHDEMO: 638 default: 639 return NULL; 640 } 641 642 mvp = malloc(sizeof(struct mwl_vap), M_80211_VAP, M_WAITOK | M_ZERO); 643 mvp->mv_hvap = hvap; 644 if (opmode == IEEE80211_M_WDS) { 645 /* 646 * WDS vaps must have an associated AP vap; find one. 647 * XXX not right. 648 */ 649 TAILQ_FOREACH(apvap, &ic->ic_vaps, iv_next) 650 if (apvap->iv_opmode == IEEE80211_M_HOSTAP) { 651 mvp->mv_ap_hvap = MWL_VAP(apvap)->mv_hvap; 652 break; 653 } 654 KASSERT(mvp->mv_ap_hvap != NULL, ("no ap vap")); 655 } 656 vap = &mvp->mv_vap; 657 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 658 /* override with driver methods */ 659 mvp->mv_newstate = vap->iv_newstate; 660 vap->iv_newstate = mwl_newstate; 661 vap->iv_max_keyix = 0; /* XXX */ 662 vap->iv_key_alloc = mwl_key_alloc; 663 vap->iv_key_delete = mwl_key_delete; 664 vap->iv_key_set = mwl_key_set; 665 #ifdef MWL_HOST_PS_SUPPORT 666 if (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_MBSS) { 667 vap->iv_update_ps = mwl_update_ps; 668 mvp->mv_set_tim = vap->iv_set_tim; 669 vap->iv_set_tim = mwl_set_tim; 670 } 671 #endif 672 vap->iv_reset = mwl_reset; 673 vap->iv_update_beacon = mwl_beacon_update; 674 675 /* override max aid so sta's cannot assoc when we're out of sta id's */ 676 vap->iv_max_aid = MWL_MAXSTAID; 677 /* override default A-MPDU rx parameters */ 678 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_64K; 679 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_4; 680 681 /* complete setup */ 682 ieee80211_vap_attach(vap, mwl_media_change, ieee80211_media_status, 683 mac); 684 685 switch (vap->iv_opmode) { 686 case IEEE80211_M_HOSTAP: 687 case IEEE80211_M_MBSS: 688 case IEEE80211_M_STA: 689 /* 690 * Setup sta db entry for local address. 691 */ 692 mwl_localstadb(vap); 693 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 694 vap->iv_opmode == IEEE80211_M_MBSS) 695 sc->sc_napvaps++; 696 else 697 sc->sc_nstavaps++; 698 break; 699 case IEEE80211_M_WDS: 700 sc->sc_nwdsvaps++; 701 break; 702 default: 703 break; 704 } 705 /* 706 * Setup overall operating mode. 707 */ 708 if (sc->sc_napvaps) 709 ic->ic_opmode = IEEE80211_M_HOSTAP; 710 else if (sc->sc_nstavaps) 711 ic->ic_opmode = IEEE80211_M_STA; 712 else 713 ic->ic_opmode = opmode; 714 715 return vap; 716 } 717 718 static void 719 mwl_vap_delete(struct ieee80211vap *vap) 720 { 721 struct mwl_vap *mvp = MWL_VAP(vap); 722 struct mwl_softc *sc = vap->iv_ic->ic_softc; 723 struct mwl_hal *mh = sc->sc_mh; 724 struct mwl_hal_vap *hvap = mvp->mv_hvap; 725 enum ieee80211_opmode opmode = vap->iv_opmode; 726 727 /* XXX disallow ap vap delete if WDS still present */ 728 if (sc->sc_running) { 729 /* quiesce h/w while we remove the vap */ 730 mwl_hal_intrset(mh, 0); /* disable interrupts */ 731 } 732 ieee80211_vap_detach(vap); 733 switch (opmode) { 734 case IEEE80211_M_HOSTAP: 735 case IEEE80211_M_MBSS: 736 case IEEE80211_M_STA: 737 KASSERT(hvap != NULL, ("no hal vap handle")); 738 (void) mwl_hal_delstation(hvap, vap->iv_myaddr); 739 mwl_hal_delvap(hvap); 740 if (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_MBSS) 741 sc->sc_napvaps--; 742 else 743 sc->sc_nstavaps--; 744 /* XXX don't do it for IEEE80211_CLONE_MACADDR */ 745 reclaim_address(sc, vap->iv_myaddr); 746 break; 747 case IEEE80211_M_WDS: 748 sc->sc_nwdsvaps--; 749 break; 750 default: 751 break; 752 } 753 mwl_cleartxq(sc, vap); 754 free(mvp, M_80211_VAP); 755 if (sc->sc_running) 756 mwl_hal_intrset(mh, sc->sc_imask); 757 } 758 759 void 760 mwl_suspend(struct mwl_softc *sc) 761 { 762 763 MWL_LOCK(sc); 764 mwl_stop(sc); 765 MWL_UNLOCK(sc); 766 } 767 768 void 769 mwl_resume(struct mwl_softc *sc) 770 { 771 int error = EDOOFUS; 772 773 MWL_LOCK(sc); 774 if (sc->sc_ic.ic_nrunning > 0) 775 error = mwl_init(sc); 776 MWL_UNLOCK(sc); 777 778 if (error == 0) 779 ieee80211_start_all(&sc->sc_ic); /* start all vap's */ 780 } 781 782 void 783 mwl_shutdown(void *arg) 784 { 785 struct mwl_softc *sc = arg; 786 787 MWL_LOCK(sc); 788 mwl_stop(sc); 789 MWL_UNLOCK(sc); 790 } 791 792 /* 793 * Interrupt handler. Most of the actual processing is deferred. 794 */ 795 void 796 mwl_intr(void *arg) 797 { 798 struct mwl_softc *sc = arg; 799 struct mwl_hal *mh = sc->sc_mh; 800 uint32_t status; 801 802 if (sc->sc_invalid) { 803 /* 804 * The hardware is not ready/present, don't touch anything. 805 * Note this can happen early on if the IRQ is shared. 806 */ 807 DPRINTF(sc, MWL_DEBUG_ANY, "%s: invalid; ignored\n", __func__); 808 return; 809 } 810 /* 811 * Figure out the reason(s) for the interrupt. 812 */ 813 mwl_hal_getisr(mh, &status); /* NB: clears ISR too */ 814 if (status == 0) /* must be a shared irq */ 815 return; 816 817 DPRINTF(sc, MWL_DEBUG_INTR, "%s: status 0x%x imask 0x%x\n", 818 __func__, status, sc->sc_imask); 819 if (status & MACREG_A2HRIC_BIT_RX_RDY) 820 taskqueue_enqueue(sc->sc_tq, &sc->sc_rxtask); 821 if (status & MACREG_A2HRIC_BIT_TX_DONE) 822 taskqueue_enqueue(sc->sc_tq, &sc->sc_txtask); 823 if (status & MACREG_A2HRIC_BIT_BA_WATCHDOG) 824 taskqueue_enqueue(sc->sc_tq, &sc->sc_bawatchdogtask); 825 if (status & MACREG_A2HRIC_BIT_OPC_DONE) 826 mwl_hal_cmddone(mh); 827 if (status & MACREG_A2HRIC_BIT_MAC_EVENT) { 828 ; 829 } 830 if (status & MACREG_A2HRIC_BIT_ICV_ERROR) { 831 /* TKIP ICV error */ 832 sc->sc_stats.mst_rx_badtkipicv++; 833 } 834 if (status & MACREG_A2HRIC_BIT_QUEUE_EMPTY) { 835 /* 11n aggregation queue is empty, re-fill */ 836 ; 837 } 838 if (status & MACREG_A2HRIC_BIT_QUEUE_FULL) { 839 ; 840 } 841 if (status & MACREG_A2HRIC_BIT_RADAR_DETECT) { 842 /* radar detected, process event */ 843 taskqueue_enqueue(sc->sc_tq, &sc->sc_radartask); 844 } 845 if (status & MACREG_A2HRIC_BIT_CHAN_SWITCH) { 846 /* DFS channel switch */ 847 taskqueue_enqueue(sc->sc_tq, &sc->sc_chanswitchtask); 848 } 849 } 850 851 static void 852 mwl_radar_proc(void *arg, int pending) 853 { 854 struct mwl_softc *sc = arg; 855 struct ieee80211com *ic = &sc->sc_ic; 856 857 DPRINTF(sc, MWL_DEBUG_ANY, "%s: radar detected, pending %u\n", 858 __func__, pending); 859 860 sc->sc_stats.mst_radardetect++; 861 /* XXX stop h/w BA streams? */ 862 863 IEEE80211_LOCK(ic); 864 ieee80211_dfs_notify_radar(ic, ic->ic_curchan); 865 IEEE80211_UNLOCK(ic); 866 } 867 868 static void 869 mwl_chanswitch_proc(void *arg, int pending) 870 { 871 struct mwl_softc *sc = arg; 872 struct ieee80211com *ic = &sc->sc_ic; 873 874 DPRINTF(sc, MWL_DEBUG_ANY, "%s: channel switch notice, pending %u\n", 875 __func__, pending); 876 877 IEEE80211_LOCK(ic); 878 sc->sc_csapending = 0; 879 ieee80211_csa_completeswitch(ic); 880 IEEE80211_UNLOCK(ic); 881 } 882 883 static void 884 mwl_bawatchdog(const MWL_HAL_BASTREAM *sp) 885 { 886 struct ieee80211_node *ni = sp->data[0]; 887 888 /* send DELBA and drop the stream */ 889 ieee80211_ampdu_stop(ni, sp->data[1], IEEE80211_REASON_UNSPECIFIED); 890 } 891 892 static void 893 mwl_bawatchdog_proc(void *arg, int pending) 894 { 895 struct mwl_softc *sc = arg; 896 struct mwl_hal *mh = sc->sc_mh; 897 const MWL_HAL_BASTREAM *sp; 898 uint8_t bitmap, n; 899 900 sc->sc_stats.mst_bawatchdog++; 901 902 if (mwl_hal_getwatchdogbitmap(mh, &bitmap) != 0) { 903 DPRINTF(sc, MWL_DEBUG_AMPDU, 904 "%s: could not get bitmap\n", __func__); 905 sc->sc_stats.mst_bawatchdog_failed++; 906 return; 907 } 908 DPRINTF(sc, MWL_DEBUG_AMPDU, "%s: bitmap 0x%x\n", __func__, bitmap); 909 if (bitmap == 0xff) { 910 n = 0; 911 /* disable all ba streams */ 912 for (bitmap = 0; bitmap < 8; bitmap++) { 913 sp = mwl_hal_bastream_lookup(mh, bitmap); 914 if (sp != NULL) { 915 mwl_bawatchdog(sp); 916 n++; 917 } 918 } 919 if (n == 0) { 920 DPRINTF(sc, MWL_DEBUG_AMPDU, 921 "%s: no BA streams found\n", __func__); 922 sc->sc_stats.mst_bawatchdog_empty++; 923 } 924 } else if (bitmap != 0xaa) { 925 /* disable a single ba stream */ 926 sp = mwl_hal_bastream_lookup(mh, bitmap); 927 if (sp != NULL) { 928 mwl_bawatchdog(sp); 929 } else { 930 DPRINTF(sc, MWL_DEBUG_AMPDU, 931 "%s: no BA stream %d\n", __func__, bitmap); 932 sc->sc_stats.mst_bawatchdog_notfound++; 933 } 934 } 935 } 936 937 /* 938 * Convert net80211 channel to a HAL channel. 939 */ 940 static void 941 mwl_mapchan(MWL_HAL_CHANNEL *hc, const struct ieee80211_channel *chan) 942 { 943 hc->channel = chan->ic_ieee; 944 945 *(uint32_t *)&hc->channelFlags = 0; 946 if (IEEE80211_IS_CHAN_2GHZ(chan)) 947 hc->channelFlags.FreqBand = MWL_FREQ_BAND_2DOT4GHZ; 948 else if (IEEE80211_IS_CHAN_5GHZ(chan)) 949 hc->channelFlags.FreqBand = MWL_FREQ_BAND_5GHZ; 950 if (IEEE80211_IS_CHAN_HT40(chan)) { 951 hc->channelFlags.ChnlWidth = MWL_CH_40_MHz_WIDTH; 952 if (IEEE80211_IS_CHAN_HT40U(chan)) 953 hc->channelFlags.ExtChnlOffset = MWL_EXT_CH_ABOVE_CTRL_CH; 954 else 955 hc->channelFlags.ExtChnlOffset = MWL_EXT_CH_BELOW_CTRL_CH; 956 } else 957 hc->channelFlags.ChnlWidth = MWL_CH_20_MHz_WIDTH; 958 /* XXX 10MHz channels */ 959 } 960 961 /* 962 * Inform firmware of our tx/rx dma setup. The BAR 0 963 * writes below are for compatibility with older firmware. 964 * For current firmware we send this information with a 965 * cmd block via mwl_hal_sethwdma. 966 */ 967 static int 968 mwl_setupdma(struct mwl_softc *sc) 969 { 970 int error, i; 971 972 sc->sc_hwdma.rxDescRead = sc->sc_rxdma.dd_desc_paddr; 973 WR4(sc, sc->sc_hwspecs.rxDescRead, sc->sc_hwdma.rxDescRead); 974 WR4(sc, sc->sc_hwspecs.rxDescWrite, sc->sc_hwdma.rxDescRead); 975 976 for (i = 0; i < MWL_NUM_TX_QUEUES-MWL_NUM_ACK_QUEUES; i++) { 977 struct mwl_txq *txq = &sc->sc_txq[i]; 978 sc->sc_hwdma.wcbBase[i] = txq->dma.dd_desc_paddr; 979 WR4(sc, sc->sc_hwspecs.wcbBase[i], sc->sc_hwdma.wcbBase[i]); 980 } 981 sc->sc_hwdma.maxNumTxWcb = mwl_txbuf; 982 sc->sc_hwdma.maxNumWCB = MWL_NUM_TX_QUEUES-MWL_NUM_ACK_QUEUES; 983 984 error = mwl_hal_sethwdma(sc->sc_mh, &sc->sc_hwdma); 985 if (error != 0) { 986 device_printf(sc->sc_dev, 987 "unable to setup tx/rx dma; hal status %u\n", error); 988 /* XXX */ 989 } 990 return error; 991 } 992 993 /* 994 * Inform firmware of tx rate parameters. 995 * Called after a channel change. 996 */ 997 static int 998 mwl_setcurchanrates(struct mwl_softc *sc) 999 { 1000 struct ieee80211com *ic = &sc->sc_ic; 1001 const struct ieee80211_rateset *rs; 1002 MWL_HAL_TXRATE rates; 1003 1004 memset(&rates, 0, sizeof(rates)); 1005 rs = ieee80211_get_suprates(ic, ic->ic_curchan); 1006 /* rate used to send management frames */ 1007 rates.MgtRate = rs->rs_rates[0] & IEEE80211_RATE_VAL; 1008 /* rate used to send multicast frames */ 1009 rates.McastRate = rates.MgtRate; 1010 1011 return mwl_hal_settxrate_auto(sc->sc_mh, &rates); 1012 } 1013 1014 /* 1015 * Inform firmware of tx rate parameters. Called whenever 1016 * user-settable params change and after a channel change. 1017 */ 1018 static int 1019 mwl_setrates(struct ieee80211vap *vap) 1020 { 1021 struct mwl_vap *mvp = MWL_VAP(vap); 1022 struct ieee80211_node *ni = vap->iv_bss; 1023 const struct ieee80211_txparam *tp = ni->ni_txparms; 1024 MWL_HAL_TXRATE rates; 1025 1026 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("state %d", vap->iv_state)); 1027 1028 /* 1029 * Update the h/w rate map. 1030 * NB: 0x80 for MCS is passed through unchanged 1031 */ 1032 memset(&rates, 0, sizeof(rates)); 1033 /* rate used to send management frames */ 1034 rates.MgtRate = tp->mgmtrate; 1035 /* rate used to send multicast frames */ 1036 rates.McastRate = tp->mcastrate; 1037 1038 /* while here calculate EAPOL fixed rate cookie */ 1039 mvp->mv_eapolformat = htole16(mwl_calcformat(rates.MgtRate, ni)); 1040 1041 return mwl_hal_settxrate(mvp->mv_hvap, 1042 tp->ucastrate != IEEE80211_FIXED_RATE_NONE ? 1043 RATE_FIXED : RATE_AUTO, &rates); 1044 } 1045 1046 /* 1047 * Setup a fixed xmit rate cookie for EAPOL frames. 1048 */ 1049 static void 1050 mwl_seteapolformat(struct ieee80211vap *vap) 1051 { 1052 struct mwl_vap *mvp = MWL_VAP(vap); 1053 struct ieee80211_node *ni = vap->iv_bss; 1054 enum ieee80211_phymode mode; 1055 uint8_t rate; 1056 1057 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("state %d", vap->iv_state)); 1058 1059 mode = ieee80211_chan2mode(ni->ni_chan); 1060 /* 1061 * Use legacy rates when operating a mixed HT+non-HT bss. 1062 * NB: this may violate POLA for sta and wds vap's. 1063 */ 1064 if (mode == IEEE80211_MODE_11NA && 1065 (vap->iv_flags_ht & IEEE80211_FHT_PUREN) == 0) 1066 rate = vap->iv_txparms[IEEE80211_MODE_11A].mgmtrate; 1067 else if (mode == IEEE80211_MODE_11NG && 1068 (vap->iv_flags_ht & IEEE80211_FHT_PUREN) == 0) 1069 rate = vap->iv_txparms[IEEE80211_MODE_11G].mgmtrate; 1070 else 1071 rate = vap->iv_txparms[mode].mgmtrate; 1072 1073 mvp->mv_eapolformat = htole16(mwl_calcformat(rate, ni)); 1074 } 1075 1076 /* 1077 * Map SKU+country code to region code for radar bin'ing. 1078 */ 1079 static int 1080 mwl_map2regioncode(const struct ieee80211_regdomain *rd) 1081 { 1082 switch (rd->regdomain) { 1083 case SKU_FCC: 1084 case SKU_FCC3: 1085 return DOMAIN_CODE_FCC; 1086 case SKU_CA: 1087 return DOMAIN_CODE_IC; 1088 case SKU_ETSI: 1089 case SKU_ETSI2: 1090 case SKU_ETSI3: 1091 if (rd->country == CTRY_SPAIN) 1092 return DOMAIN_CODE_SPAIN; 1093 if (rd->country == CTRY_FRANCE || rd->country == CTRY_FRANCE2) 1094 return DOMAIN_CODE_FRANCE; 1095 /* XXX force 1.3.1 radar type */ 1096 return DOMAIN_CODE_ETSI_131; 1097 case SKU_JAPAN: 1098 return DOMAIN_CODE_MKK; 1099 case SKU_ROW: 1100 return DOMAIN_CODE_DGT; /* Taiwan */ 1101 case SKU_APAC: 1102 case SKU_APAC2: 1103 case SKU_APAC3: 1104 return DOMAIN_CODE_AUS; /* Australia */ 1105 } 1106 /* XXX KOREA? */ 1107 return DOMAIN_CODE_FCC; /* XXX? */ 1108 } 1109 1110 static int 1111 mwl_hal_reset(struct mwl_softc *sc) 1112 { 1113 struct ieee80211com *ic = &sc->sc_ic; 1114 struct mwl_hal *mh = sc->sc_mh; 1115 1116 mwl_hal_setantenna(mh, WL_ANTENNATYPE_RX, sc->sc_rxantenna); 1117 mwl_hal_setantenna(mh, WL_ANTENNATYPE_TX, sc->sc_txantenna); 1118 mwl_hal_setradio(mh, 1, WL_AUTO_PREAMBLE); 1119 mwl_hal_setwmm(sc->sc_mh, (ic->ic_flags & IEEE80211_F_WME) != 0); 1120 mwl_chan_set(sc, ic->ic_curchan); 1121 /* NB: RF/RA performance tuned for indoor mode */ 1122 mwl_hal_setrateadaptmode(mh, 0); 1123 mwl_hal_setoptimizationlevel(mh, 1124 (ic->ic_flags & IEEE80211_F_BURST) != 0); 1125 1126 mwl_hal_setregioncode(mh, mwl_map2regioncode(&ic->ic_regdomain)); 1127 1128 mwl_hal_setaggampduratemode(mh, 1, 80); /* XXX */ 1129 mwl_hal_setcfend(mh, 0); /* XXX */ 1130 1131 return 1; 1132 } 1133 1134 static int 1135 mwl_init(struct mwl_softc *sc) 1136 { 1137 struct mwl_hal *mh = sc->sc_mh; 1138 int error = 0; 1139 1140 MWL_LOCK_ASSERT(sc); 1141 1142 /* 1143 * Stop anything previously setup. This is safe 1144 * whether this is the first time through or not. 1145 */ 1146 mwl_stop(sc); 1147 1148 /* 1149 * Push vap-independent state to the firmware. 1150 */ 1151 if (!mwl_hal_reset(sc)) { 1152 device_printf(sc->sc_dev, "unable to reset hardware\n"); 1153 return EIO; 1154 } 1155 1156 /* 1157 * Setup recv (once); transmit is already good to go. 1158 */ 1159 error = mwl_startrecv(sc); 1160 if (error != 0) { 1161 device_printf(sc->sc_dev, "unable to start recv logic\n"); 1162 return error; 1163 } 1164 1165 /* 1166 * Enable interrupts. 1167 */ 1168 sc->sc_imask = MACREG_A2HRIC_BIT_RX_RDY 1169 | MACREG_A2HRIC_BIT_TX_DONE 1170 | MACREG_A2HRIC_BIT_OPC_DONE 1171 #if 0 1172 | MACREG_A2HRIC_BIT_MAC_EVENT 1173 #endif 1174 | MACREG_A2HRIC_BIT_ICV_ERROR 1175 | MACREG_A2HRIC_BIT_RADAR_DETECT 1176 | MACREG_A2HRIC_BIT_CHAN_SWITCH 1177 #if 0 1178 | MACREG_A2HRIC_BIT_QUEUE_EMPTY 1179 #endif 1180 | MACREG_A2HRIC_BIT_BA_WATCHDOG 1181 | MACREQ_A2HRIC_BIT_TX_ACK 1182 ; 1183 1184 sc->sc_running = 1; 1185 mwl_hal_intrset(mh, sc->sc_imask); 1186 callout_reset(&sc->sc_watchdog, hz, mwl_watchdog, sc); 1187 1188 return 0; 1189 } 1190 1191 static void 1192 mwl_stop(struct mwl_softc *sc) 1193 { 1194 1195 MWL_LOCK_ASSERT(sc); 1196 if (sc->sc_running) { 1197 /* 1198 * Shutdown the hardware and driver. 1199 */ 1200 sc->sc_running = 0; 1201 callout_stop(&sc->sc_watchdog); 1202 sc->sc_tx_timer = 0; 1203 mwl_draintxq(sc); 1204 } 1205 } 1206 1207 static int 1208 mwl_reset_vap(struct ieee80211vap *vap, int state) 1209 { 1210 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1211 struct ieee80211com *ic = vap->iv_ic; 1212 1213 if (state == IEEE80211_S_RUN) 1214 mwl_setrates(vap); 1215 /* XXX off by 1? */ 1216 mwl_hal_setrtsthreshold(hvap, vap->iv_rtsthreshold); 1217 /* XXX auto? 20/40 split? */ 1218 mwl_hal_sethtgi(hvap, (vap->iv_flags_ht & 1219 (IEEE80211_FHT_SHORTGI20|IEEE80211_FHT_SHORTGI40)) ? 1 : 0); 1220 mwl_hal_setnprot(hvap, ic->ic_htprotmode == IEEE80211_PROT_NONE ? 1221 HTPROTECT_NONE : HTPROTECT_AUTO); 1222 /* XXX txpower cap */ 1223 1224 /* re-setup beacons */ 1225 if (state == IEEE80211_S_RUN && 1226 (vap->iv_opmode == IEEE80211_M_HOSTAP || 1227 vap->iv_opmode == IEEE80211_M_MBSS || 1228 vap->iv_opmode == IEEE80211_M_IBSS)) { 1229 mwl_setapmode(vap, vap->iv_bss->ni_chan); 1230 mwl_hal_setnprotmode(hvap, _IEEE80211_MASKSHIFT( 1231 ic->ic_curhtprotmode, IEEE80211_HTINFO_OPMODE)); 1232 return mwl_beacon_setup(vap); 1233 } 1234 return 0; 1235 } 1236 1237 /* 1238 * Reset the hardware w/o losing operational state. 1239 * Used to reset or reload hardware state for a vap. 1240 */ 1241 static int 1242 mwl_reset(struct ieee80211vap *vap, u_long cmd) 1243 { 1244 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1245 int error = 0; 1246 1247 if (hvap != NULL) { /* WDS, MONITOR, etc. */ 1248 struct ieee80211com *ic = vap->iv_ic; 1249 struct mwl_softc *sc = ic->ic_softc; 1250 struct mwl_hal *mh = sc->sc_mh; 1251 1252 /* XXX handle DWDS sta vap change */ 1253 /* XXX do we need to disable interrupts? */ 1254 mwl_hal_intrset(mh, 0); /* disable interrupts */ 1255 error = mwl_reset_vap(vap, vap->iv_state); 1256 mwl_hal_intrset(mh, sc->sc_imask); 1257 } 1258 return error; 1259 } 1260 1261 /* 1262 * Allocate a tx buffer for sending a frame. The 1263 * packet is assumed to have the WME AC stored so 1264 * we can use it to select the appropriate h/w queue. 1265 */ 1266 static struct mwl_txbuf * 1267 mwl_gettxbuf(struct mwl_softc *sc, struct mwl_txq *txq) 1268 { 1269 struct mwl_txbuf *bf; 1270 1271 /* 1272 * Grab a TX buffer and associated resources. 1273 */ 1274 MWL_TXQ_LOCK(txq); 1275 bf = STAILQ_FIRST(&txq->free); 1276 if (bf != NULL) { 1277 STAILQ_REMOVE_HEAD(&txq->free, bf_list); 1278 txq->nfree--; 1279 } 1280 MWL_TXQ_UNLOCK(txq); 1281 if (bf == NULL) 1282 DPRINTF(sc, MWL_DEBUG_XMIT, 1283 "%s: out of xmit buffers on q %d\n", __func__, txq->qnum); 1284 return bf; 1285 } 1286 1287 /* 1288 * Return a tx buffer to the queue it came from. Note there 1289 * are two cases because we must preserve the order of buffers 1290 * as it reflects the fixed order of descriptors in memory 1291 * (the firmware pre-fetches descriptors so we cannot reorder). 1292 */ 1293 static void 1294 mwl_puttxbuf_head(struct mwl_txq *txq, struct mwl_txbuf *bf) 1295 { 1296 bf->bf_m = NULL; 1297 bf->bf_node = NULL; 1298 MWL_TXQ_LOCK(txq); 1299 STAILQ_INSERT_HEAD(&txq->free, bf, bf_list); 1300 txq->nfree++; 1301 MWL_TXQ_UNLOCK(txq); 1302 } 1303 1304 static void 1305 mwl_puttxbuf_tail(struct mwl_txq *txq, struct mwl_txbuf *bf) 1306 { 1307 bf->bf_m = NULL; 1308 bf->bf_node = NULL; 1309 MWL_TXQ_LOCK(txq); 1310 STAILQ_INSERT_TAIL(&txq->free, bf, bf_list); 1311 txq->nfree++; 1312 MWL_TXQ_UNLOCK(txq); 1313 } 1314 1315 static int 1316 mwl_transmit(struct ieee80211com *ic, struct mbuf *m) 1317 { 1318 struct mwl_softc *sc = ic->ic_softc; 1319 int error; 1320 1321 MWL_LOCK(sc); 1322 if (!sc->sc_running) { 1323 MWL_UNLOCK(sc); 1324 return (ENXIO); 1325 } 1326 error = mbufq_enqueue(&sc->sc_snd, m); 1327 if (error) { 1328 MWL_UNLOCK(sc); 1329 return (error); 1330 } 1331 mwl_start(sc); 1332 MWL_UNLOCK(sc); 1333 return (0); 1334 } 1335 1336 static void 1337 mwl_start(struct mwl_softc *sc) 1338 { 1339 struct ieee80211_node *ni; 1340 struct mwl_txbuf *bf; 1341 struct mbuf *m; 1342 struct mwl_txq *txq = NULL; /* XXX silence gcc */ 1343 int nqueued; 1344 1345 MWL_LOCK_ASSERT(sc); 1346 if (!sc->sc_running || sc->sc_invalid) 1347 return; 1348 nqueued = 0; 1349 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1350 /* 1351 * Grab the node for the destination. 1352 */ 1353 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1354 KASSERT(ni != NULL, ("no node")); 1355 m->m_pkthdr.rcvif = NULL; /* committed, clear ref */ 1356 /* 1357 * Grab a TX buffer and associated resources. 1358 * We honor the classification by the 802.11 layer. 1359 */ 1360 txq = sc->sc_ac2q[M_WME_GETAC(m)]; 1361 bf = mwl_gettxbuf(sc, txq); 1362 if (bf == NULL) { 1363 m_freem(m); 1364 ieee80211_free_node(ni); 1365 #ifdef MWL_TX_NODROP 1366 sc->sc_stats.mst_tx_qstop++; 1367 break; 1368 #else 1369 DPRINTF(sc, MWL_DEBUG_XMIT, 1370 "%s: tail drop on q %d\n", __func__, txq->qnum); 1371 sc->sc_stats.mst_tx_qdrop++; 1372 continue; 1373 #endif /* MWL_TX_NODROP */ 1374 } 1375 1376 /* 1377 * Pass the frame to the h/w for transmission. 1378 */ 1379 if (mwl_tx_start(sc, ni, bf, m)) { 1380 if_inc_counter(ni->ni_vap->iv_ifp, 1381 IFCOUNTER_OERRORS, 1); 1382 mwl_puttxbuf_head(txq, bf); 1383 ieee80211_free_node(ni); 1384 continue; 1385 } 1386 nqueued++; 1387 if (nqueued >= mwl_txcoalesce) { 1388 /* 1389 * Poke the firmware to process queued frames; 1390 * see below about (lack of) locking. 1391 */ 1392 nqueued = 0; 1393 mwl_hal_txstart(sc->sc_mh, 0/*XXX*/); 1394 } 1395 } 1396 if (nqueued) { 1397 /* 1398 * NB: We don't need to lock against tx done because 1399 * this just prods the firmware to check the transmit 1400 * descriptors. The firmware will also start fetching 1401 * descriptors by itself if it notices new ones are 1402 * present when it goes to deliver a tx done interrupt 1403 * to the host. So if we race with tx done processing 1404 * it's ok. Delivering the kick here rather than in 1405 * mwl_tx_start is an optimization to avoid poking the 1406 * firmware for each packet. 1407 * 1408 * NB: the queue id isn't used so 0 is ok. 1409 */ 1410 mwl_hal_txstart(sc->sc_mh, 0/*XXX*/); 1411 } 1412 } 1413 1414 static int 1415 mwl_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1416 const struct ieee80211_bpf_params *params) 1417 { 1418 struct ieee80211com *ic = ni->ni_ic; 1419 struct mwl_softc *sc = ic->ic_softc; 1420 struct mwl_txbuf *bf; 1421 struct mwl_txq *txq; 1422 1423 if (!sc->sc_running || sc->sc_invalid) { 1424 m_freem(m); 1425 return ENETDOWN; 1426 } 1427 /* 1428 * Grab a TX buffer and associated resources. 1429 * Note that we depend on the classification 1430 * by the 802.11 layer to get to the right h/w 1431 * queue. Management frames must ALWAYS go on 1432 * queue 1 but we cannot just force that here 1433 * because we may receive non-mgt frames. 1434 */ 1435 txq = sc->sc_ac2q[M_WME_GETAC(m)]; 1436 bf = mwl_gettxbuf(sc, txq); 1437 if (bf == NULL) { 1438 sc->sc_stats.mst_tx_qstop++; 1439 m_freem(m); 1440 return ENOBUFS; 1441 } 1442 /* 1443 * Pass the frame to the h/w for transmission. 1444 */ 1445 if (mwl_tx_start(sc, ni, bf, m)) { 1446 mwl_puttxbuf_head(txq, bf); 1447 1448 return EIO; /* XXX */ 1449 } 1450 /* 1451 * NB: We don't need to lock against tx done because 1452 * this just prods the firmware to check the transmit 1453 * descriptors. The firmware will also start fetching 1454 * descriptors by itself if it notices new ones are 1455 * present when it goes to deliver a tx done interrupt 1456 * to the host. So if we race with tx done processing 1457 * it's ok. Delivering the kick here rather than in 1458 * mwl_tx_start is an optimization to avoid poking the 1459 * firmware for each packet. 1460 * 1461 * NB: the queue id isn't used so 0 is ok. 1462 */ 1463 mwl_hal_txstart(sc->sc_mh, 0/*XXX*/); 1464 return 0; 1465 } 1466 1467 static int 1468 mwl_media_change(struct ifnet *ifp) 1469 { 1470 struct ieee80211vap *vap; 1471 int error; 1472 1473 /* NB: only the fixed rate can change and that doesn't need a reset */ 1474 error = ieee80211_media_change(ifp); 1475 if (error != 0) 1476 return (error); 1477 1478 vap = ifp->if_softc; 1479 mwl_setrates(vap); 1480 return (0); 1481 } 1482 1483 #ifdef MWL_DEBUG 1484 static void 1485 mwl_keyprint(struct mwl_softc *sc, const char *tag, 1486 const MWL_HAL_KEYVAL *hk, const uint8_t mac[IEEE80211_ADDR_LEN]) 1487 { 1488 static const char *ciphers[] = { 1489 "WEP", 1490 "TKIP", 1491 "AES-CCM", 1492 }; 1493 int i, n; 1494 1495 printf("%s: [%u] %-7s", tag, hk->keyIndex, ciphers[hk->keyTypeId]); 1496 for (i = 0, n = hk->keyLen; i < n; i++) 1497 printf(" %02x", hk->key.aes[i]); 1498 printf(" mac %s", ether_sprintf(mac)); 1499 if (hk->keyTypeId == KEY_TYPE_ID_TKIP) { 1500 printf(" %s", "rxmic"); 1501 for (i = 0; i < sizeof(hk->key.tkip.rxMic); i++) 1502 printf(" %02x", hk->key.tkip.rxMic[i]); 1503 printf(" txmic"); 1504 for (i = 0; i < sizeof(hk->key.tkip.txMic); i++) 1505 printf(" %02x", hk->key.tkip.txMic[i]); 1506 } 1507 printf(" flags 0x%x\n", hk->keyFlags); 1508 } 1509 #endif 1510 1511 /* 1512 * Allocate a key cache slot for a unicast key. The 1513 * firmware handles key allocation and every station is 1514 * guaranteed key space so we are always successful. 1515 */ 1516 static int 1517 mwl_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 1518 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 1519 { 1520 struct mwl_softc *sc = vap->iv_ic->ic_softc; 1521 1522 if (k->wk_keyix != IEEE80211_KEYIX_NONE || 1523 (k->wk_flags & IEEE80211_KEY_GROUP)) { 1524 if (!(&vap->iv_nw_keys[0] <= k && 1525 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) { 1526 /* should not happen */ 1527 DPRINTF(sc, MWL_DEBUG_KEYCACHE, 1528 "%s: bogus group key\n", __func__); 1529 return 0; 1530 } 1531 /* give the caller what they requested */ 1532 *keyix = *rxkeyix = ieee80211_crypto_get_key_wepidx(vap, k); 1533 } else { 1534 /* 1535 * Firmware handles key allocation. 1536 */ 1537 *keyix = *rxkeyix = 0; 1538 } 1539 return 1; 1540 } 1541 1542 /* 1543 * Delete a key entry allocated by mwl_key_alloc. 1544 */ 1545 static int 1546 mwl_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 1547 { 1548 struct mwl_softc *sc = vap->iv_ic->ic_softc; 1549 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1550 MWL_HAL_KEYVAL hk; 1551 const uint8_t bcastaddr[IEEE80211_ADDR_LEN] = 1552 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 1553 1554 if (hvap == NULL) { 1555 if (vap->iv_opmode != IEEE80211_M_WDS) { 1556 /* XXX monitor mode? */ 1557 DPRINTF(sc, MWL_DEBUG_KEYCACHE, 1558 "%s: no hvap for opmode %d\n", __func__, 1559 vap->iv_opmode); 1560 return 0; 1561 } 1562 hvap = MWL_VAP(vap)->mv_ap_hvap; 1563 } 1564 1565 DPRINTF(sc, MWL_DEBUG_KEYCACHE, "%s: delete key %u\n", 1566 __func__, k->wk_keyix); 1567 1568 memset(&hk, 0, sizeof(hk)); 1569 hk.keyIndex = k->wk_keyix; 1570 switch (k->wk_cipher->ic_cipher) { 1571 case IEEE80211_CIPHER_WEP: 1572 hk.keyTypeId = KEY_TYPE_ID_WEP; 1573 break; 1574 case IEEE80211_CIPHER_TKIP: 1575 hk.keyTypeId = KEY_TYPE_ID_TKIP; 1576 break; 1577 case IEEE80211_CIPHER_AES_CCM: 1578 hk.keyTypeId = KEY_TYPE_ID_AES; 1579 break; 1580 default: 1581 /* XXX should not happen */ 1582 DPRINTF(sc, MWL_DEBUG_KEYCACHE, "%s: unknown cipher %d\n", 1583 __func__, k->wk_cipher->ic_cipher); 1584 return 0; 1585 } 1586 return (mwl_hal_keyreset(hvap, &hk, bcastaddr) == 0); /*XXX*/ 1587 } 1588 1589 static __inline int 1590 addgroupflags(MWL_HAL_KEYVAL *hk, const struct ieee80211_key *k) 1591 { 1592 if (k->wk_flags & IEEE80211_KEY_GROUP) { 1593 if (k->wk_flags & IEEE80211_KEY_XMIT) 1594 hk->keyFlags |= KEY_FLAG_TXGROUPKEY; 1595 if (k->wk_flags & IEEE80211_KEY_RECV) 1596 hk->keyFlags |= KEY_FLAG_RXGROUPKEY; 1597 return 1; 1598 } else 1599 return 0; 1600 } 1601 1602 /* 1603 * Set the key cache contents for the specified key. Key cache 1604 * slot(s) must already have been allocated by mwl_key_alloc. 1605 */ 1606 static int 1607 mwl_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 1608 { 1609 return (_mwl_key_set(vap, k, k->wk_macaddr)); 1610 } 1611 1612 static int 1613 _mwl_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k, 1614 const uint8_t mac[IEEE80211_ADDR_LEN]) 1615 { 1616 #define GRPXMIT (IEEE80211_KEY_XMIT | IEEE80211_KEY_GROUP) 1617 /* NB: static wep keys are marked GROUP+tx/rx; GTK will be tx or rx */ 1618 #define IEEE80211_IS_STATICKEY(k) \ 1619 (((k)->wk_flags & (GRPXMIT|IEEE80211_KEY_RECV)) == \ 1620 (GRPXMIT|IEEE80211_KEY_RECV)) 1621 struct mwl_softc *sc = vap->iv_ic->ic_softc; 1622 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1623 const struct ieee80211_cipher *cip = k->wk_cipher; 1624 const uint8_t *macaddr; 1625 MWL_HAL_KEYVAL hk; 1626 1627 KASSERT((k->wk_flags & IEEE80211_KEY_SWCRYPT) == 0, 1628 ("s/w crypto set?")); 1629 1630 if (hvap == NULL) { 1631 if (vap->iv_opmode != IEEE80211_M_WDS) { 1632 /* XXX monitor mode? */ 1633 DPRINTF(sc, MWL_DEBUG_KEYCACHE, 1634 "%s: no hvap for opmode %d\n", __func__, 1635 vap->iv_opmode); 1636 return 0; 1637 } 1638 hvap = MWL_VAP(vap)->mv_ap_hvap; 1639 } 1640 memset(&hk, 0, sizeof(hk)); 1641 hk.keyIndex = k->wk_keyix; 1642 switch (cip->ic_cipher) { 1643 case IEEE80211_CIPHER_WEP: 1644 hk.keyTypeId = KEY_TYPE_ID_WEP; 1645 hk.keyLen = k->wk_keylen; 1646 if (k->wk_keyix == vap->iv_def_txkey) 1647 hk.keyFlags = KEY_FLAG_WEP_TXKEY; 1648 if (!IEEE80211_IS_STATICKEY(k)) { 1649 /* NB: WEP is never used for the PTK */ 1650 (void) addgroupflags(&hk, k); 1651 } 1652 break; 1653 case IEEE80211_CIPHER_TKIP: 1654 hk.keyTypeId = KEY_TYPE_ID_TKIP; 1655 hk.key.tkip.tsc.high = (uint32_t)(k->wk_keytsc >> 16); 1656 hk.key.tkip.tsc.low = (uint16_t)k->wk_keytsc; 1657 hk.keyFlags = KEY_FLAG_TSC_VALID | KEY_FLAG_MICKEY_VALID; 1658 hk.keyLen = k->wk_keylen + IEEE80211_MICBUF_SIZE; 1659 if (!addgroupflags(&hk, k)) 1660 hk.keyFlags |= KEY_FLAG_PAIRWISE; 1661 break; 1662 case IEEE80211_CIPHER_AES_CCM: 1663 hk.keyTypeId = KEY_TYPE_ID_AES; 1664 hk.keyLen = k->wk_keylen; 1665 if (!addgroupflags(&hk, k)) 1666 hk.keyFlags |= KEY_FLAG_PAIRWISE; 1667 break; 1668 default: 1669 /* XXX should not happen */ 1670 DPRINTF(sc, MWL_DEBUG_KEYCACHE, "%s: unknown cipher %d\n", 1671 __func__, k->wk_cipher->ic_cipher); 1672 return 0; 1673 } 1674 /* 1675 * NB: tkip mic keys get copied here too; the layout 1676 * just happens to match that in ieee80211_key. 1677 */ 1678 memcpy(hk.key.aes, k->wk_key, hk.keyLen); 1679 1680 /* 1681 * Locate address of sta db entry for writing key; 1682 * the convention unfortunately is somewhat different 1683 * than how net80211, hostapd, and wpa_supplicant think. 1684 */ 1685 if (vap->iv_opmode == IEEE80211_M_STA) { 1686 /* 1687 * NB: keys plumbed before the sta reaches AUTH state 1688 * will be discarded or written to the wrong sta db 1689 * entry because iv_bss is meaningless. This is ok 1690 * (right now) because we handle deferred plumbing of 1691 * WEP keys when the sta reaches AUTH state. 1692 */ 1693 macaddr = vap->iv_bss->ni_bssid; 1694 if ((k->wk_flags & IEEE80211_KEY_GROUP) == 0) { 1695 /* XXX plumb to local sta db too for static key wep */ 1696 mwl_hal_keyset(hvap, &hk, vap->iv_myaddr); 1697 } 1698 } else if (vap->iv_opmode == IEEE80211_M_WDS && 1699 vap->iv_state != IEEE80211_S_RUN) { 1700 /* 1701 * Prior to RUN state a WDS vap will not it's BSS node 1702 * setup so we will plumb the key to the wrong mac 1703 * address (it'll be our local address). Workaround 1704 * this for the moment by grabbing the correct address. 1705 */ 1706 macaddr = vap->iv_des_bssid; 1707 } else if ((k->wk_flags & GRPXMIT) == GRPXMIT) 1708 macaddr = vap->iv_myaddr; 1709 else 1710 macaddr = mac; 1711 KEYPRINTF(sc, &hk, macaddr); 1712 return (mwl_hal_keyset(hvap, &hk, macaddr) == 0); 1713 #undef IEEE80211_IS_STATICKEY 1714 #undef GRPXMIT 1715 } 1716 1717 /* 1718 * Set the multicast filter contents into the hardware. 1719 * XXX f/w has no support; just defer to the os. 1720 */ 1721 static void 1722 mwl_setmcastfilter(struct mwl_softc *sc) 1723 { 1724 #if 0 1725 struct ether_multi *enm; 1726 struct ether_multistep estep; 1727 uint8_t macs[IEEE80211_ADDR_LEN*MWL_HAL_MCAST_MAX];/* XXX stack use */ 1728 uint8_t *mp; 1729 int nmc; 1730 1731 mp = macs; 1732 nmc = 0; 1733 ETHER_FIRST_MULTI(estep, &sc->sc_ec, enm); 1734 while (enm != NULL) { 1735 /* XXX Punt on ranges. */ 1736 if (nmc == MWL_HAL_MCAST_MAX || 1737 !IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi)) { 1738 ifp->if_flags |= IFF_ALLMULTI; 1739 return; 1740 } 1741 IEEE80211_ADDR_COPY(mp, enm->enm_addrlo); 1742 mp += IEEE80211_ADDR_LEN, nmc++; 1743 ETHER_NEXT_MULTI(estep, enm); 1744 } 1745 ifp->if_flags &= ~IFF_ALLMULTI; 1746 mwl_hal_setmcast(sc->sc_mh, nmc, macs); 1747 #endif 1748 } 1749 1750 static int 1751 mwl_mode_init(struct mwl_softc *sc) 1752 { 1753 struct ieee80211com *ic = &sc->sc_ic; 1754 struct mwl_hal *mh = sc->sc_mh; 1755 1756 mwl_hal_setpromisc(mh, ic->ic_promisc > 0); 1757 mwl_setmcastfilter(sc); 1758 1759 return 0; 1760 } 1761 1762 /* 1763 * Callback from the 802.11 layer after a multicast state change. 1764 */ 1765 static void 1766 mwl_update_mcast(struct ieee80211com *ic) 1767 { 1768 struct mwl_softc *sc = ic->ic_softc; 1769 1770 mwl_setmcastfilter(sc); 1771 } 1772 1773 /* 1774 * Callback from the 802.11 layer after a promiscuous mode change. 1775 * Note this interface does not check the operating mode as this 1776 * is an internal callback and we are expected to honor the current 1777 * state (e.g. this is used for setting the interface in promiscuous 1778 * mode when operating in hostap mode to do ACS). 1779 */ 1780 static void 1781 mwl_update_promisc(struct ieee80211com *ic) 1782 { 1783 struct mwl_softc *sc = ic->ic_softc; 1784 1785 mwl_hal_setpromisc(sc->sc_mh, ic->ic_promisc > 0); 1786 } 1787 1788 /* 1789 * Callback from the 802.11 layer to update the slot time 1790 * based on the current setting. We use it to notify the 1791 * firmware of ERP changes and the f/w takes care of things 1792 * like slot time and preamble. 1793 */ 1794 static void 1795 mwl_updateslot(struct ieee80211com *ic) 1796 { 1797 struct mwl_softc *sc = ic->ic_softc; 1798 struct mwl_hal *mh = sc->sc_mh; 1799 int prot; 1800 1801 /* NB: can be called early; suppress needless cmds */ 1802 if (!sc->sc_running) 1803 return; 1804 1805 /* 1806 * Calculate the ERP flags. The firwmare will use 1807 * this to carry out the appropriate measures. 1808 */ 1809 prot = 0; 1810 if (IEEE80211_IS_CHAN_ANYG(ic->ic_curchan)) { 1811 if ((ic->ic_flags & IEEE80211_F_SHSLOT) == 0) 1812 prot |= IEEE80211_ERP_NON_ERP_PRESENT; 1813 if (ic->ic_flags & IEEE80211_F_USEPROT) 1814 prot |= IEEE80211_ERP_USE_PROTECTION; 1815 if (ic->ic_flags & IEEE80211_F_USEBARKER) 1816 prot |= IEEE80211_ERP_LONG_PREAMBLE; 1817 } 1818 1819 DPRINTF(sc, MWL_DEBUG_RESET, 1820 "%s: chan %u MHz/flags 0x%x %s slot, (prot 0x%x ic_flags 0x%x)\n", 1821 __func__, ic->ic_curchan->ic_freq, ic->ic_curchan->ic_flags, 1822 ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long", prot, 1823 ic->ic_flags); 1824 1825 mwl_hal_setgprot(mh, prot); 1826 } 1827 1828 /* 1829 * Setup the beacon frame. 1830 */ 1831 static int 1832 mwl_beacon_setup(struct ieee80211vap *vap) 1833 { 1834 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1835 struct ieee80211_node *ni = vap->iv_bss; 1836 struct mbuf *m; 1837 1838 m = ieee80211_beacon_alloc(ni); 1839 if (m == NULL) 1840 return ENOBUFS; 1841 mwl_hal_setbeacon(hvap, mtod(m, const void *), m->m_len); 1842 m_free(m); 1843 1844 return 0; 1845 } 1846 1847 /* 1848 * Update the beacon frame in response to a change. 1849 */ 1850 static void 1851 mwl_beacon_update(struct ieee80211vap *vap, int item) 1852 { 1853 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1854 struct ieee80211com *ic = vap->iv_ic; 1855 1856 KASSERT(hvap != NULL, ("no beacon")); 1857 switch (item) { 1858 case IEEE80211_BEACON_ERP: 1859 mwl_updateslot(ic); 1860 break; 1861 case IEEE80211_BEACON_HTINFO: 1862 mwl_hal_setnprotmode(hvap, _IEEE80211_MASKSHIFT( 1863 ic->ic_curhtprotmode, IEEE80211_HTINFO_OPMODE)); 1864 break; 1865 case IEEE80211_BEACON_CAPS: 1866 case IEEE80211_BEACON_WME: 1867 case IEEE80211_BEACON_APPIE: 1868 case IEEE80211_BEACON_CSA: 1869 break; 1870 case IEEE80211_BEACON_TIM: 1871 /* NB: firmware always forms TIM */ 1872 return; 1873 } 1874 /* XXX retain beacon frame and update */ 1875 mwl_beacon_setup(vap); 1876 } 1877 1878 static void 1879 mwl_load_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1880 { 1881 bus_addr_t *paddr = (bus_addr_t*) arg; 1882 KASSERT(error == 0, ("error %u on bus_dma callback", error)); 1883 *paddr = segs->ds_addr; 1884 } 1885 1886 #ifdef MWL_HOST_PS_SUPPORT 1887 /* 1888 * Handle power save station occupancy changes. 1889 */ 1890 static void 1891 mwl_update_ps(struct ieee80211vap *vap, int nsta) 1892 { 1893 struct mwl_vap *mvp = MWL_VAP(vap); 1894 1895 if (nsta == 0 || mvp->mv_last_ps_sta == 0) 1896 mwl_hal_setpowersave_bss(mvp->mv_hvap, nsta); 1897 mvp->mv_last_ps_sta = nsta; 1898 } 1899 1900 /* 1901 * Handle associated station power save state changes. 1902 */ 1903 static int 1904 mwl_set_tim(struct ieee80211_node *ni, int set) 1905 { 1906 struct ieee80211vap *vap = ni->ni_vap; 1907 struct mwl_vap *mvp = MWL_VAP(vap); 1908 1909 if (mvp->mv_set_tim(ni, set)) { /* NB: state change */ 1910 mwl_hal_setpowersave_sta(mvp->mv_hvap, 1911 IEEE80211_AID(ni->ni_associd), set); 1912 return 1; 1913 } else 1914 return 0; 1915 } 1916 #endif /* MWL_HOST_PS_SUPPORT */ 1917 1918 static int 1919 mwl_desc_setup(struct mwl_softc *sc, const char *name, 1920 struct mwl_descdma *dd, 1921 int nbuf, size_t bufsize, int ndesc, size_t descsize) 1922 { 1923 uint8_t *ds; 1924 int error; 1925 1926 DPRINTF(sc, MWL_DEBUG_RESET, 1927 "%s: %s DMA: %u bufs (%ju) %u desc/buf (%ju)\n", 1928 __func__, name, nbuf, (uintmax_t) bufsize, 1929 ndesc, (uintmax_t) descsize); 1930 1931 dd->dd_name = name; 1932 dd->dd_desc_len = nbuf * ndesc * descsize; 1933 1934 /* 1935 * Setup DMA descriptor area. 1936 */ 1937 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), /* parent */ 1938 PAGE_SIZE, 0, /* alignment, bounds */ 1939 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1940 BUS_SPACE_MAXADDR, /* highaddr */ 1941 NULL, NULL, /* filter, filterarg */ 1942 dd->dd_desc_len, /* maxsize */ 1943 1, /* nsegments */ 1944 dd->dd_desc_len, /* maxsegsize */ 1945 BUS_DMA_ALLOCNOW, /* flags */ 1946 NULL, /* lockfunc */ 1947 NULL, /* lockarg */ 1948 &dd->dd_dmat); 1949 if (error != 0) { 1950 device_printf(sc->sc_dev, "cannot allocate %s DMA tag\n", dd->dd_name); 1951 return error; 1952 } 1953 1954 /* allocate descriptors */ 1955 error = bus_dmamem_alloc(dd->dd_dmat, (void**) &dd->dd_desc, 1956 BUS_DMA_NOWAIT | BUS_DMA_COHERENT, 1957 &dd->dd_dmamap); 1958 if (error != 0) { 1959 device_printf(sc->sc_dev, "unable to alloc memory for %u %s descriptors, " 1960 "error %u\n", nbuf * ndesc, dd->dd_name, error); 1961 goto fail1; 1962 } 1963 1964 error = bus_dmamap_load(dd->dd_dmat, dd->dd_dmamap, 1965 dd->dd_desc, dd->dd_desc_len, 1966 mwl_load_cb, &dd->dd_desc_paddr, 1967 BUS_DMA_NOWAIT); 1968 if (error != 0) { 1969 device_printf(sc->sc_dev, "unable to map %s descriptors, error %u\n", 1970 dd->dd_name, error); 1971 goto fail2; 1972 } 1973 1974 ds = dd->dd_desc; 1975 memset(ds, 0, dd->dd_desc_len); 1976 DPRINTF(sc, MWL_DEBUG_RESET, 1977 "%s: %s DMA map: %p (%lu) -> 0x%jx (%lu)\n", 1978 __func__, dd->dd_name, ds, (u_long) dd->dd_desc_len, 1979 (uintmax_t) dd->dd_desc_paddr, /*XXX*/ (u_long) dd->dd_desc_len); 1980 1981 return 0; 1982 fail2: 1983 bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap); 1984 fail1: 1985 bus_dma_tag_destroy(dd->dd_dmat); 1986 memset(dd, 0, sizeof(*dd)); 1987 return error; 1988 #undef DS2PHYS 1989 } 1990 1991 static void 1992 mwl_desc_cleanup(struct mwl_softc *sc, struct mwl_descdma *dd) 1993 { 1994 bus_dmamap_unload(dd->dd_dmat, dd->dd_dmamap); 1995 bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap); 1996 bus_dma_tag_destroy(dd->dd_dmat); 1997 1998 memset(dd, 0, sizeof(*dd)); 1999 } 2000 2001 /* 2002 * Construct a tx q's free list. The order of entries on 2003 * the list must reflect the physical layout of tx descriptors 2004 * because the firmware pre-fetches descriptors. 2005 * 2006 * XXX might be better to use indices into the buffer array. 2007 */ 2008 static void 2009 mwl_txq_reset(struct mwl_softc *sc, struct mwl_txq *txq) 2010 { 2011 struct mwl_txbuf *bf; 2012 int i; 2013 2014 bf = txq->dma.dd_bufptr; 2015 STAILQ_INIT(&txq->free); 2016 for (i = 0; i < mwl_txbuf; i++, bf++) 2017 STAILQ_INSERT_TAIL(&txq->free, bf, bf_list); 2018 txq->nfree = i; 2019 } 2020 2021 #define DS2PHYS(_dd, _ds) \ 2022 ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) 2023 2024 static int 2025 mwl_txdma_setup(struct mwl_softc *sc, struct mwl_txq *txq) 2026 { 2027 int error, bsize, i; 2028 struct mwl_txbuf *bf; 2029 struct mwl_txdesc *ds; 2030 2031 error = mwl_desc_setup(sc, "tx", &txq->dma, 2032 mwl_txbuf, sizeof(struct mwl_txbuf), 2033 MWL_TXDESC, sizeof(struct mwl_txdesc)); 2034 if (error != 0) 2035 return error; 2036 2037 /* allocate and setup tx buffers */ 2038 bsize = mwl_txbuf * sizeof(struct mwl_txbuf); 2039 bf = malloc(bsize, M_MWLDEV, M_NOWAIT | M_ZERO); 2040 if (bf == NULL) { 2041 device_printf(sc->sc_dev, "malloc of %u tx buffers failed\n", 2042 mwl_txbuf); 2043 return ENOMEM; 2044 } 2045 txq->dma.dd_bufptr = bf; 2046 2047 ds = txq->dma.dd_desc; 2048 for (i = 0; i < mwl_txbuf; i++, bf++, ds += MWL_TXDESC) { 2049 bf->bf_desc = ds; 2050 bf->bf_daddr = DS2PHYS(&txq->dma, ds); 2051 error = bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, 2052 &bf->bf_dmamap); 2053 if (error != 0) { 2054 device_printf(sc->sc_dev, "unable to create dmamap for tx " 2055 "buffer %u, error %u\n", i, error); 2056 return error; 2057 } 2058 } 2059 mwl_txq_reset(sc, txq); 2060 return 0; 2061 } 2062 2063 static void 2064 mwl_txdma_cleanup(struct mwl_softc *sc, struct mwl_txq *txq) 2065 { 2066 struct mwl_txbuf *bf; 2067 int i; 2068 2069 bf = txq->dma.dd_bufptr; 2070 for (i = 0; i < mwl_txbuf; i++, bf++) { 2071 KASSERT(bf->bf_m == NULL, ("mbuf on free list")); 2072 KASSERT(bf->bf_node == NULL, ("node on free list")); 2073 if (bf->bf_dmamap != NULL) 2074 bus_dmamap_destroy(sc->sc_dmat, bf->bf_dmamap); 2075 } 2076 STAILQ_INIT(&txq->free); 2077 txq->nfree = 0; 2078 if (txq->dma.dd_bufptr != NULL) { 2079 free(txq->dma.dd_bufptr, M_MWLDEV); 2080 txq->dma.dd_bufptr = NULL; 2081 } 2082 if (txq->dma.dd_desc_len != 0) 2083 mwl_desc_cleanup(sc, &txq->dma); 2084 } 2085 2086 static int 2087 mwl_rxdma_setup(struct mwl_softc *sc) 2088 { 2089 int error, jumbosize, bsize, i; 2090 struct mwl_rxbuf *bf; 2091 struct mwl_jumbo *rbuf; 2092 struct mwl_rxdesc *ds; 2093 caddr_t data; 2094 2095 error = mwl_desc_setup(sc, "rx", &sc->sc_rxdma, 2096 mwl_rxdesc, sizeof(struct mwl_rxbuf), 2097 1, sizeof(struct mwl_rxdesc)); 2098 if (error != 0) 2099 return error; 2100 2101 /* 2102 * Receive is done to a private pool of jumbo buffers. 2103 * This allows us to attach to mbuf's and avoid re-mapping 2104 * memory on each rx we post. We allocate a large chunk 2105 * of memory and manage it in the driver. The mbuf free 2106 * callback method is used to reclaim frames after sending 2107 * them up the stack. By default we allocate 2x the number of 2108 * rx descriptors configured so we have some slop to hold 2109 * us while frames are processed. 2110 */ 2111 if (mwl_rxbuf < 2*mwl_rxdesc) { 2112 device_printf(sc->sc_dev, 2113 "too few rx dma buffers (%d); increasing to %d\n", 2114 mwl_rxbuf, 2*mwl_rxdesc); 2115 mwl_rxbuf = 2*mwl_rxdesc; 2116 } 2117 jumbosize = roundup(MWL_AGGR_SIZE, PAGE_SIZE); 2118 sc->sc_rxmemsize = mwl_rxbuf*jumbosize; 2119 2120 error = bus_dma_tag_create(sc->sc_dmat, /* parent */ 2121 PAGE_SIZE, 0, /* alignment, bounds */ 2122 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 2123 BUS_SPACE_MAXADDR, /* highaddr */ 2124 NULL, NULL, /* filter, filterarg */ 2125 sc->sc_rxmemsize, /* maxsize */ 2126 1, /* nsegments */ 2127 sc->sc_rxmemsize, /* maxsegsize */ 2128 BUS_DMA_ALLOCNOW, /* flags */ 2129 NULL, /* lockfunc */ 2130 NULL, /* lockarg */ 2131 &sc->sc_rxdmat); 2132 if (error != 0) { 2133 device_printf(sc->sc_dev, "could not create rx DMA tag\n"); 2134 return error; 2135 } 2136 2137 error = bus_dmamem_alloc(sc->sc_rxdmat, (void**) &sc->sc_rxmem, 2138 BUS_DMA_NOWAIT | BUS_DMA_COHERENT, 2139 &sc->sc_rxmap); 2140 if (error != 0) { 2141 device_printf(sc->sc_dev, "could not alloc %ju bytes of rx DMA memory\n", 2142 (uintmax_t) sc->sc_rxmemsize); 2143 return error; 2144 } 2145 2146 error = bus_dmamap_load(sc->sc_rxdmat, sc->sc_rxmap, 2147 sc->sc_rxmem, sc->sc_rxmemsize, 2148 mwl_load_cb, &sc->sc_rxmem_paddr, 2149 BUS_DMA_NOWAIT); 2150 if (error != 0) { 2151 device_printf(sc->sc_dev, "could not load rx DMA map\n"); 2152 return error; 2153 } 2154 2155 /* 2156 * Allocate rx buffers and set them up. 2157 */ 2158 bsize = mwl_rxdesc * sizeof(struct mwl_rxbuf); 2159 bf = malloc(bsize, M_MWLDEV, M_NOWAIT | M_ZERO); 2160 if (bf == NULL) { 2161 device_printf(sc->sc_dev, "malloc of %u rx buffers failed\n", bsize); 2162 return error; 2163 } 2164 sc->sc_rxdma.dd_bufptr = bf; 2165 2166 STAILQ_INIT(&sc->sc_rxbuf); 2167 ds = sc->sc_rxdma.dd_desc; 2168 for (i = 0; i < mwl_rxdesc; i++, bf++, ds++) { 2169 bf->bf_desc = ds; 2170 bf->bf_daddr = DS2PHYS(&sc->sc_rxdma, ds); 2171 /* pre-assign dma buffer */ 2172 bf->bf_data = ((uint8_t *)sc->sc_rxmem) + (i*jumbosize); 2173 /* NB: tail is intentional to preserve descriptor order */ 2174 STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list); 2175 } 2176 2177 /* 2178 * Place remainder of dma memory buffers on the free list. 2179 */ 2180 SLIST_INIT(&sc->sc_rxfree); 2181 for (; i < mwl_rxbuf; i++) { 2182 data = ((uint8_t *)sc->sc_rxmem) + (i*jumbosize); 2183 rbuf = MWL_JUMBO_DATA2BUF(data); 2184 SLIST_INSERT_HEAD(&sc->sc_rxfree, rbuf, next); 2185 sc->sc_nrxfree++; 2186 } 2187 return 0; 2188 } 2189 #undef DS2PHYS 2190 2191 static void 2192 mwl_rxdma_cleanup(struct mwl_softc *sc) 2193 { 2194 if (sc->sc_rxmem_paddr != 0) { 2195 bus_dmamap_unload(sc->sc_rxdmat, sc->sc_rxmap); 2196 sc->sc_rxmem_paddr = 0; 2197 } 2198 if (sc->sc_rxmem != NULL) { 2199 bus_dmamem_free(sc->sc_rxdmat, sc->sc_rxmem, sc->sc_rxmap); 2200 sc->sc_rxmem = NULL; 2201 } 2202 if (sc->sc_rxdma.dd_bufptr != NULL) { 2203 free(sc->sc_rxdma.dd_bufptr, M_MWLDEV); 2204 sc->sc_rxdma.dd_bufptr = NULL; 2205 } 2206 if (sc->sc_rxdma.dd_desc_len != 0) 2207 mwl_desc_cleanup(sc, &sc->sc_rxdma); 2208 } 2209 2210 static int 2211 mwl_dma_setup(struct mwl_softc *sc) 2212 { 2213 int error, i; 2214 2215 error = mwl_rxdma_setup(sc); 2216 if (error != 0) { 2217 mwl_rxdma_cleanup(sc); 2218 return error; 2219 } 2220 2221 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) { 2222 error = mwl_txdma_setup(sc, &sc->sc_txq[i]); 2223 if (error != 0) { 2224 mwl_dma_cleanup(sc); 2225 return error; 2226 } 2227 } 2228 return 0; 2229 } 2230 2231 static void 2232 mwl_dma_cleanup(struct mwl_softc *sc) 2233 { 2234 int i; 2235 2236 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 2237 mwl_txdma_cleanup(sc, &sc->sc_txq[i]); 2238 mwl_rxdma_cleanup(sc); 2239 } 2240 2241 static struct ieee80211_node * 2242 mwl_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 2243 { 2244 struct ieee80211com *ic = vap->iv_ic; 2245 struct mwl_softc *sc = ic->ic_softc; 2246 const size_t space = sizeof(struct mwl_node); 2247 struct mwl_node *mn; 2248 2249 mn = malloc(space, M_80211_NODE, M_NOWAIT|M_ZERO); 2250 if (mn == NULL) { 2251 /* XXX stat+msg */ 2252 return NULL; 2253 } 2254 DPRINTF(sc, MWL_DEBUG_NODE, "%s: mn %p\n", __func__, mn); 2255 return &mn->mn_node; 2256 } 2257 2258 static void 2259 mwl_node_cleanup(struct ieee80211_node *ni) 2260 { 2261 struct ieee80211com *ic = ni->ni_ic; 2262 struct mwl_softc *sc = ic->ic_softc; 2263 struct mwl_node *mn = MWL_NODE(ni); 2264 2265 DPRINTF(sc, MWL_DEBUG_NODE, "%s: ni %p ic %p staid %d\n", 2266 __func__, ni, ni->ni_ic, mn->mn_staid); 2267 2268 if (mn->mn_staid != 0) { 2269 struct ieee80211vap *vap = ni->ni_vap; 2270 2271 if (mn->mn_hvap != NULL) { 2272 if (vap->iv_opmode == IEEE80211_M_STA) 2273 mwl_hal_delstation(mn->mn_hvap, vap->iv_myaddr); 2274 else 2275 mwl_hal_delstation(mn->mn_hvap, ni->ni_macaddr); 2276 } 2277 /* 2278 * NB: legacy WDS peer sta db entry is installed using 2279 * the associate ap's hvap; use it again to delete it. 2280 * XXX can vap be NULL? 2281 */ 2282 else if (vap->iv_opmode == IEEE80211_M_WDS && 2283 MWL_VAP(vap)->mv_ap_hvap != NULL) 2284 mwl_hal_delstation(MWL_VAP(vap)->mv_ap_hvap, 2285 ni->ni_macaddr); 2286 delstaid(sc, mn->mn_staid); 2287 mn->mn_staid = 0; 2288 } 2289 sc->sc_node_cleanup(ni); 2290 } 2291 2292 /* 2293 * Reclaim rx dma buffers from packets sitting on the ampdu 2294 * reorder queue for a station. We replace buffers with a 2295 * system cluster (if available). 2296 */ 2297 static void 2298 mwl_ampdu_rxdma_reclaim(struct ieee80211_rx_ampdu *rap) 2299 { 2300 #if 0 2301 int i, n, off; 2302 struct mbuf *m; 2303 void *cl; 2304 2305 n = rap->rxa_qframes; 2306 for (i = 0; i < rap->rxa_wnd && n > 0; i++) { 2307 m = rap->rxa_m[i]; 2308 if (m == NULL) 2309 continue; 2310 n--; 2311 /* our dma buffers have a well-known free routine */ 2312 if ((m->m_flags & M_EXT) == 0 || 2313 m->m_ext.ext_free != mwl_ext_free) 2314 continue; 2315 /* 2316 * Try to allocate a cluster and move the data. 2317 */ 2318 off = m->m_data - m->m_ext.ext_buf; 2319 if (off + m->m_pkthdr.len > MCLBYTES) { 2320 /* XXX no AMSDU for now */ 2321 continue; 2322 } 2323 cl = pool_cache_get_paddr(&mclpool_cache, 0, 2324 &m->m_ext.ext_paddr); 2325 if (cl != NULL) { 2326 /* 2327 * Copy the existing data to the cluster, remove 2328 * the rx dma buffer, and attach the cluster in 2329 * its place. Note we preserve the offset to the 2330 * data so frames being bridged can still prepend 2331 * their headers without adding another mbuf. 2332 */ 2333 memcpy((caddr_t) cl + off, m->m_data, m->m_pkthdr.len); 2334 MEXTREMOVE(m); 2335 MEXTADD(m, cl, MCLBYTES, 0, NULL, &mclpool_cache); 2336 /* setup mbuf like _MCLGET does */ 2337 m->m_flags |= M_CLUSTER | M_EXT_RW; 2338 _MOWNERREF(m, M_EXT | M_CLUSTER); 2339 /* NB: m_data is clobbered by MEXTADDR, adjust */ 2340 m->m_data += off; 2341 } 2342 } 2343 #endif 2344 } 2345 2346 /* 2347 * Callback to reclaim resources. We first let the 2348 * net80211 layer do it's thing, then if we are still 2349 * blocked by a lack of rx dma buffers we walk the ampdu 2350 * reorder q's to reclaim buffers by copying to a system 2351 * cluster. 2352 */ 2353 static void 2354 mwl_node_drain(struct ieee80211_node *ni) 2355 { 2356 struct ieee80211com *ic = ni->ni_ic; 2357 struct mwl_softc *sc = ic->ic_softc; 2358 struct mwl_node *mn = MWL_NODE(ni); 2359 2360 DPRINTF(sc, MWL_DEBUG_NODE, "%s: ni %p vap %p staid %d\n", 2361 __func__, ni, ni->ni_vap, mn->mn_staid); 2362 2363 /* NB: call up first to age out ampdu q's */ 2364 sc->sc_node_drain(ni); 2365 2366 /* XXX better to not check low water mark? */ 2367 if (sc->sc_rxblocked && mn->mn_staid != 0 && 2368 (ni->ni_flags & IEEE80211_NODE_HT)) { 2369 uint8_t tid; 2370 /* 2371 * Walk the reorder q and reclaim rx dma buffers by copying 2372 * the packet contents into clusters. 2373 */ 2374 for (tid = 0; tid < WME_NUM_TID; tid++) { 2375 struct ieee80211_rx_ampdu *rap; 2376 2377 rap = &ni->ni_rx_ampdu[tid]; 2378 if ((rap->rxa_flags & IEEE80211_AGGR_XCHGPEND) == 0) 2379 continue; 2380 if (rap->rxa_qframes) 2381 mwl_ampdu_rxdma_reclaim(rap); 2382 } 2383 } 2384 } 2385 2386 static void 2387 mwl_node_getsignal(const struct ieee80211_node *ni, int8_t *rssi, int8_t *noise) 2388 { 2389 *rssi = ni->ni_ic->ic_node_getrssi(ni); 2390 #ifdef MWL_ANT_INFO_SUPPORT 2391 #if 0 2392 /* XXX need to smooth data */ 2393 *noise = -MWL_NODE_CONST(ni)->mn_ai.nf; 2394 #else 2395 *noise = -95; /* XXX */ 2396 #endif 2397 #else 2398 *noise = -95; /* XXX */ 2399 #endif 2400 } 2401 2402 /* 2403 * Convert Hardware per-antenna rssi info to common format: 2404 * Let a1, a2, a3 represent the amplitudes per chain 2405 * Let amax represent max[a1, a2, a3] 2406 * Rssi1_dBm = RSSI_dBm + 20*log10(a1/amax) 2407 * Rssi1_dBm = RSSI_dBm + 20*log10(a1) - 20*log10(amax) 2408 * We store a table that is 4*20*log10(idx) - the extra 4 is to store or 2409 * maintain some extra precision. 2410 * 2411 * Values are stored in .5 db format capped at 127. 2412 */ 2413 static void 2414 mwl_node_getmimoinfo(const struct ieee80211_node *ni, 2415 struct ieee80211_mimo_info *mi) 2416 { 2417 #define CVT(_dst, _src) do { \ 2418 (_dst) = rssi + ((logdbtbl[_src] - logdbtbl[rssi_max]) >> 2); \ 2419 (_dst) = (_dst) > 64 ? 127 : ((_dst) << 1); \ 2420 } while (0) 2421 static const int8_t logdbtbl[32] = { 2422 0, 0, 24, 38, 48, 56, 62, 68, 2423 72, 76, 80, 83, 86, 89, 92, 94, 2424 96, 98, 100, 102, 104, 106, 107, 109, 2425 110, 112, 113, 115, 116, 117, 118, 119 2426 }; 2427 const struct mwl_node *mn = MWL_NODE_CONST(ni); 2428 uint8_t rssi = mn->mn_ai.rsvd1/2; /* XXX */ 2429 uint32_t rssi_max; 2430 2431 rssi_max = mn->mn_ai.rssi_a; 2432 if (mn->mn_ai.rssi_b > rssi_max) 2433 rssi_max = mn->mn_ai.rssi_b; 2434 if (mn->mn_ai.rssi_c > rssi_max) 2435 rssi_max = mn->mn_ai.rssi_c; 2436 2437 CVT(mi->ch[0].rssi[0], mn->mn_ai.rssi_a); 2438 CVT(mi->ch[1].rssi[0], mn->mn_ai.rssi_b); 2439 CVT(mi->ch[2].rssi[0], mn->mn_ai.rssi_c); 2440 2441 mi->ch[0].noise[0] = mn->mn_ai.nf_a; 2442 mi->ch[1].noise[0] = mn->mn_ai.nf_b; 2443 mi->ch[2].noise[0] = mn->mn_ai.nf_c; 2444 #undef CVT 2445 } 2446 2447 static __inline void * 2448 mwl_getrxdma(struct mwl_softc *sc) 2449 { 2450 struct mwl_jumbo *buf; 2451 void *data; 2452 2453 /* 2454 * Allocate from jumbo pool. 2455 */ 2456 MWL_RXFREE_LOCK(sc); 2457 buf = SLIST_FIRST(&sc->sc_rxfree); 2458 if (buf == NULL) { 2459 DPRINTF(sc, MWL_DEBUG_ANY, 2460 "%s: out of rx dma buffers\n", __func__); 2461 sc->sc_stats.mst_rx_nodmabuf++; 2462 data = NULL; 2463 } else { 2464 SLIST_REMOVE_HEAD(&sc->sc_rxfree, next); 2465 sc->sc_nrxfree--; 2466 data = MWL_JUMBO_BUF2DATA(buf); 2467 } 2468 MWL_RXFREE_UNLOCK(sc); 2469 return data; 2470 } 2471 2472 static __inline void 2473 mwl_putrxdma(struct mwl_softc *sc, void *data) 2474 { 2475 struct mwl_jumbo *buf; 2476 2477 /* XXX bounds check data */ 2478 MWL_RXFREE_LOCK(sc); 2479 buf = MWL_JUMBO_DATA2BUF(data); 2480 SLIST_INSERT_HEAD(&sc->sc_rxfree, buf, next); 2481 sc->sc_nrxfree++; 2482 MWL_RXFREE_UNLOCK(sc); 2483 } 2484 2485 static int 2486 mwl_rxbuf_init(struct mwl_softc *sc, struct mwl_rxbuf *bf) 2487 { 2488 struct mwl_rxdesc *ds; 2489 2490 ds = bf->bf_desc; 2491 if (bf->bf_data == NULL) { 2492 bf->bf_data = mwl_getrxdma(sc); 2493 if (bf->bf_data == NULL) { 2494 /* mark descriptor to be skipped */ 2495 ds->RxControl = EAGLE_RXD_CTRL_OS_OWN; 2496 /* NB: don't need PREREAD */ 2497 MWL_RXDESC_SYNC(sc, ds, BUS_DMASYNC_PREWRITE); 2498 sc->sc_stats.mst_rxbuf_failed++; 2499 return ENOMEM; 2500 } 2501 } 2502 /* 2503 * NB: DMA buffer contents is known to be unmodified 2504 * so there's no need to flush the data cache. 2505 */ 2506 2507 /* 2508 * Setup descriptor. 2509 */ 2510 ds->QosCtrl = 0; 2511 ds->RSSI = 0; 2512 ds->Status = EAGLE_RXD_STATUS_IDLE; 2513 ds->Channel = 0; 2514 ds->PktLen = htole16(MWL_AGGR_SIZE); 2515 ds->SQ2 = 0; 2516 ds->pPhysBuffData = htole32(MWL_JUMBO_DMA_ADDR(sc, bf->bf_data)); 2517 /* NB: don't touch pPhysNext, set once */ 2518 ds->RxControl = EAGLE_RXD_CTRL_DRIVER_OWN; 2519 MWL_RXDESC_SYNC(sc, ds, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2520 2521 return 0; 2522 } 2523 2524 static void 2525 mwl_ext_free(struct mbuf *m) 2526 { 2527 struct mwl_softc *sc = m->m_ext.ext_arg1; 2528 2529 /* XXX bounds check data */ 2530 mwl_putrxdma(sc, m->m_ext.ext_buf); 2531 /* 2532 * If we were previously blocked by a lack of rx dma buffers 2533 * check if we now have enough to restart rx interrupt handling. 2534 * NB: we know we are called at splvm which is above splnet. 2535 */ 2536 if (sc->sc_rxblocked && sc->sc_nrxfree > mwl_rxdmalow) { 2537 sc->sc_rxblocked = 0; 2538 mwl_hal_intrset(sc->sc_mh, sc->sc_imask); 2539 } 2540 } 2541 2542 struct mwl_frame_bar { 2543 u_int8_t i_fc[2]; 2544 u_int8_t i_dur[2]; 2545 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 2546 u_int8_t i_ta[IEEE80211_ADDR_LEN]; 2547 /* ctl, seq, FCS */ 2548 } __packed; 2549 2550 /* 2551 * Like ieee80211_anyhdrsize, but handles BAR frames 2552 * specially so the logic below to piece the 802.11 2553 * header together works. 2554 */ 2555 static __inline int 2556 mwl_anyhdrsize(const void *data) 2557 { 2558 const struct ieee80211_frame *wh = data; 2559 2560 if ((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL) { 2561 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) { 2562 case IEEE80211_FC0_SUBTYPE_CTS: 2563 case IEEE80211_FC0_SUBTYPE_ACK: 2564 return sizeof(struct ieee80211_frame_ack); 2565 case IEEE80211_FC0_SUBTYPE_BAR: 2566 return sizeof(struct mwl_frame_bar); 2567 } 2568 return sizeof(struct ieee80211_frame_min); 2569 } else 2570 return ieee80211_hdrsize(data); 2571 } 2572 2573 static void 2574 mwl_handlemicerror(struct ieee80211com *ic, const uint8_t *data) 2575 { 2576 const struct ieee80211_frame *wh; 2577 struct ieee80211_node *ni; 2578 2579 wh = (const struct ieee80211_frame *)(data + sizeof(uint16_t)); 2580 ni = ieee80211_find_rxnode(ic, (const struct ieee80211_frame_min *) wh); 2581 if (ni != NULL) { 2582 ieee80211_notify_michael_failure(ni->ni_vap, wh, 0); 2583 ieee80211_free_node(ni); 2584 } 2585 } 2586 2587 /* 2588 * Convert hardware signal strength to rssi. The value 2589 * provided by the device has the noise floor added in; 2590 * we need to compensate for this but we don't have that 2591 * so we use a fixed value. 2592 * 2593 * The offset of 8 is good for both 2.4 and 5GHz. The LNA 2594 * offset is already set as part of the initial gain. This 2595 * will give at least +/- 3dB for 2.4GHz and +/- 5dB for 5GHz. 2596 */ 2597 static __inline int 2598 cvtrssi(uint8_t ssi) 2599 { 2600 int rssi = (int) ssi + 8; 2601 /* XXX hack guess until we have a real noise floor */ 2602 rssi = 2*(87 - rssi); /* NB: .5 dBm units */ 2603 return (rssi < 0 ? 0 : rssi > 127 ? 127 : rssi); 2604 } 2605 2606 static void 2607 mwl_rx_proc(void *arg, int npending) 2608 { 2609 struct epoch_tracker et; 2610 struct mwl_softc *sc = arg; 2611 struct ieee80211com *ic = &sc->sc_ic; 2612 struct mwl_rxbuf *bf; 2613 struct mwl_rxdesc *ds; 2614 struct mbuf *m; 2615 struct ieee80211_qosframe *wh; 2616 struct ieee80211_node *ni; 2617 struct mwl_node *mn; 2618 int off, len, hdrlen, pktlen, rssi, ntodo; 2619 uint8_t *data, status; 2620 void *newdata; 2621 int16_t nf; 2622 2623 DPRINTF(sc, MWL_DEBUG_RX_PROC, "%s: pending %u rdptr 0x%x wrptr 0x%x\n", 2624 __func__, npending, RD4(sc, sc->sc_hwspecs.rxDescRead), 2625 RD4(sc, sc->sc_hwspecs.rxDescWrite)); 2626 nf = -96; /* XXX */ 2627 bf = sc->sc_rxnext; 2628 for (ntodo = mwl_rxquota; ntodo > 0; ntodo--) { 2629 if (bf == NULL) 2630 bf = STAILQ_FIRST(&sc->sc_rxbuf); 2631 ds = bf->bf_desc; 2632 data = bf->bf_data; 2633 if (data == NULL) { 2634 /* 2635 * If data allocation failed previously there 2636 * will be no buffer; try again to re-populate it. 2637 * Note the firmware will not advance to the next 2638 * descriptor with a dma buffer so we must mimic 2639 * this or we'll get out of sync. 2640 */ 2641 DPRINTF(sc, MWL_DEBUG_ANY, 2642 "%s: rx buf w/o dma memory\n", __func__); 2643 (void) mwl_rxbuf_init(sc, bf); 2644 sc->sc_stats.mst_rx_dmabufmissing++; 2645 break; 2646 } 2647 MWL_RXDESC_SYNC(sc, ds, 2648 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2649 if (ds->RxControl != EAGLE_RXD_CTRL_DMA_OWN) 2650 break; 2651 #ifdef MWL_DEBUG 2652 if (sc->sc_debug & MWL_DEBUG_RECV_DESC) 2653 mwl_printrxbuf(bf, 0); 2654 #endif 2655 status = ds->Status; 2656 if (status & EAGLE_RXD_STATUS_DECRYPT_ERR_MASK) { 2657 counter_u64_add(ic->ic_ierrors, 1); 2658 sc->sc_stats.mst_rx_crypto++; 2659 /* 2660 * NB: Check EAGLE_RXD_STATUS_GENERAL_DECRYPT_ERR 2661 * for backwards compatibility. 2662 */ 2663 if (status != EAGLE_RXD_STATUS_GENERAL_DECRYPT_ERR && 2664 (status & EAGLE_RXD_STATUS_TKIP_MIC_DECRYPT_ERR)) { 2665 /* 2666 * MIC error, notify upper layers. 2667 */ 2668 bus_dmamap_sync(sc->sc_rxdmat, sc->sc_rxmap, 2669 BUS_DMASYNC_POSTREAD); 2670 mwl_handlemicerror(ic, data); 2671 sc->sc_stats.mst_rx_tkipmic++; 2672 } 2673 /* XXX too painful to tap packets */ 2674 goto rx_next; 2675 } 2676 /* 2677 * Sync the data buffer. 2678 */ 2679 len = le16toh(ds->PktLen); 2680 bus_dmamap_sync(sc->sc_rxdmat, sc->sc_rxmap, BUS_DMASYNC_POSTREAD); 2681 /* 2682 * The 802.11 header is provided all or in part at the front; 2683 * use it to calculate the true size of the header that we'll 2684 * construct below. We use this to figure out where to copy 2685 * payload prior to constructing the header. 2686 */ 2687 hdrlen = mwl_anyhdrsize(data + sizeof(uint16_t)); 2688 off = sizeof(uint16_t) + sizeof(struct ieee80211_frame_addr4); 2689 2690 /* calculate rssi early so we can re-use for each aggregate */ 2691 rssi = cvtrssi(ds->RSSI); 2692 2693 pktlen = hdrlen + (len - off); 2694 /* 2695 * NB: we know our frame is at least as large as 2696 * IEEE80211_MIN_LEN because there is a 4-address 2697 * frame at the front. Hence there's no need to 2698 * vet the packet length. If the frame in fact 2699 * is too small it should be discarded at the 2700 * net80211 layer. 2701 */ 2702 2703 /* 2704 * Attach dma buffer to an mbuf. We tried 2705 * doing this based on the packet size (i.e. 2706 * copying small packets) but it turns out to 2707 * be a net loss. The tradeoff might be system 2708 * dependent (cache architecture is important). 2709 */ 2710 MGETHDR(m, M_NOWAIT, MT_DATA); 2711 if (m == NULL) { 2712 DPRINTF(sc, MWL_DEBUG_ANY, 2713 "%s: no rx mbuf\n", __func__); 2714 sc->sc_stats.mst_rx_nombuf++; 2715 goto rx_next; 2716 } 2717 /* 2718 * Acquire the replacement dma buffer before 2719 * processing the frame. If we're out of dma 2720 * buffers we disable rx interrupts and wait 2721 * for the free pool to reach mlw_rxdmalow buffers 2722 * before starting to do work again. If the firmware 2723 * runs out of descriptors then it will toss frames 2724 * which is better than our doing it as that can 2725 * starve our processing. It is also important that 2726 * we always process rx'd frames in case they are 2727 * A-MPDU as otherwise the host's view of the BA 2728 * window may get out of sync with the firmware. 2729 */ 2730 newdata = mwl_getrxdma(sc); 2731 if (newdata == NULL) { 2732 /* NB: stat+msg in mwl_getrxdma */ 2733 m_free(m); 2734 /* disable RX interrupt and mark state */ 2735 mwl_hal_intrset(sc->sc_mh, 2736 sc->sc_imask &~ MACREG_A2HRIC_BIT_RX_RDY); 2737 sc->sc_rxblocked = 1; 2738 ieee80211_drain(ic); 2739 /* XXX check rxblocked and immediately start again? */ 2740 goto rx_stop; 2741 } 2742 bf->bf_data = newdata; 2743 /* 2744 * Attach the dma buffer to the mbuf; 2745 * mwl_rxbuf_init will re-setup the rx 2746 * descriptor using the replacement dma 2747 * buffer we just installed above. 2748 */ 2749 m_extadd(m, data, MWL_AGGR_SIZE, mwl_ext_free, sc, NULL, 0, 2750 EXT_NET_DRV); 2751 m->m_data += off - hdrlen; 2752 m->m_pkthdr.len = m->m_len = pktlen; 2753 /* NB: dma buffer assumed read-only */ 2754 2755 /* 2756 * Piece 802.11 header together. 2757 */ 2758 wh = mtod(m, struct ieee80211_qosframe *); 2759 /* NB: don't need to do this sometimes but ... */ 2760 /* XXX special case so we can memcpy after m_devget? */ 2761 ovbcopy(data + sizeof(uint16_t), wh, hdrlen); 2762 if (IEEE80211_QOS_HAS_SEQ(wh)) 2763 *(uint16_t *)ieee80211_getqos(wh) = ds->QosCtrl; 2764 /* 2765 * The f/w strips WEP header but doesn't clear 2766 * the WEP bit; mark the packet with M_WEP so 2767 * net80211 will treat the data as decrypted. 2768 * While here also clear the PWR_MGT bit since 2769 * power save is handled by the firmware and 2770 * passing this up will potentially cause the 2771 * upper layer to put a station in power save 2772 * (except when configured with MWL_HOST_PS_SUPPORT). 2773 */ 2774 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) 2775 m->m_flags |= M_WEP; 2776 #ifdef MWL_HOST_PS_SUPPORT 2777 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED; 2778 #else 2779 wh->i_fc[1] &= ~(IEEE80211_FC1_PROTECTED | 2780 IEEE80211_FC1_PWR_MGT); 2781 #endif 2782 2783 if (ieee80211_radiotap_active(ic)) { 2784 struct mwl_rx_radiotap_header *tap = &sc->sc_rx_th; 2785 2786 tap->wr_flags = 0; 2787 tap->wr_rate = ds->Rate; 2788 tap->wr_antsignal = rssi + nf; 2789 tap->wr_antnoise = nf; 2790 } 2791 if (IFF_DUMPPKTS_RECV(sc, wh)) { 2792 ieee80211_dump_pkt(ic, mtod(m, caddr_t), 2793 len, ds->Rate, rssi); 2794 } 2795 /* dispatch */ 2796 ni = ieee80211_find_rxnode(ic, 2797 (const struct ieee80211_frame_min *) wh); 2798 2799 NET_EPOCH_ENTER(et); 2800 if (ni != NULL) { 2801 mn = MWL_NODE(ni); 2802 #ifdef MWL_ANT_INFO_SUPPORT 2803 mn->mn_ai.rssi_a = ds->ai.rssi_a; 2804 mn->mn_ai.rssi_b = ds->ai.rssi_b; 2805 mn->mn_ai.rssi_c = ds->ai.rssi_c; 2806 mn->mn_ai.rsvd1 = rssi; 2807 #endif 2808 /* tag AMPDU aggregates for reorder processing */ 2809 if (ni->ni_flags & IEEE80211_NODE_HT) 2810 m->m_flags |= M_AMPDU; 2811 (void) ieee80211_input(ni, m, rssi, nf); 2812 ieee80211_free_node(ni); 2813 } else 2814 (void) ieee80211_input_all(ic, m, rssi, nf); 2815 NET_EPOCH_EXIT(et); 2816 rx_next: 2817 /* NB: ignore ENOMEM so we process more descriptors */ 2818 (void) mwl_rxbuf_init(sc, bf); 2819 bf = STAILQ_NEXT(bf, bf_list); 2820 } 2821 rx_stop: 2822 sc->sc_rxnext = bf; 2823 2824 if (mbufq_first(&sc->sc_snd) != NULL) { 2825 /* NB: kick fw; the tx thread may have been preempted */ 2826 mwl_hal_txstart(sc->sc_mh, 0); 2827 mwl_start(sc); 2828 } 2829 } 2830 2831 static void 2832 mwl_txq_init(struct mwl_softc *sc, struct mwl_txq *txq, int qnum) 2833 { 2834 struct mwl_txbuf *bf, *bn; 2835 struct mwl_txdesc *ds; 2836 2837 MWL_TXQ_LOCK_INIT(sc, txq); 2838 txq->qnum = qnum; 2839 txq->txpri = 0; /* XXX */ 2840 #if 0 2841 /* NB: q setup by mwl_txdma_setup XXX */ 2842 STAILQ_INIT(&txq->free); 2843 #endif 2844 STAILQ_FOREACH(bf, &txq->free, bf_list) { 2845 bf->bf_txq = txq; 2846 2847 ds = bf->bf_desc; 2848 bn = STAILQ_NEXT(bf, bf_list); 2849 if (bn == NULL) 2850 bn = STAILQ_FIRST(&txq->free); 2851 ds->pPhysNext = htole32(bn->bf_daddr); 2852 } 2853 STAILQ_INIT(&txq->active); 2854 } 2855 2856 /* 2857 * Setup a hardware data transmit queue for the specified 2858 * access control. We record the mapping from ac's 2859 * to h/w queues for use by mwl_tx_start. 2860 */ 2861 static int 2862 mwl_tx_setup(struct mwl_softc *sc, int ac, int mvtype) 2863 { 2864 struct mwl_txq *txq; 2865 2866 if (ac >= nitems(sc->sc_ac2q)) { 2867 device_printf(sc->sc_dev, "AC %u out of range, max %zu!\n", 2868 ac, nitems(sc->sc_ac2q)); 2869 return 0; 2870 } 2871 if (mvtype >= MWL_NUM_TX_QUEUES) { 2872 device_printf(sc->sc_dev, "mvtype %u out of range, max %u!\n", 2873 mvtype, MWL_NUM_TX_QUEUES); 2874 return 0; 2875 } 2876 txq = &sc->sc_txq[mvtype]; 2877 mwl_txq_init(sc, txq, mvtype); 2878 sc->sc_ac2q[ac] = txq; 2879 return 1; 2880 } 2881 2882 /* 2883 * Update WME parameters for a transmit queue. 2884 */ 2885 static int 2886 mwl_txq_update(struct mwl_softc *sc, int ac) 2887 { 2888 #define MWL_EXPONENT_TO_VALUE(v) ((1<<v)-1) 2889 struct ieee80211com *ic = &sc->sc_ic; 2890 struct chanAccParams chp; 2891 struct mwl_txq *txq = sc->sc_ac2q[ac]; 2892 struct wmeParams *wmep; 2893 struct mwl_hal *mh = sc->sc_mh; 2894 int aifs, cwmin, cwmax, txoplim; 2895 2896 ieee80211_wme_ic_getparams(ic, &chp); 2897 wmep = &chp.cap_wmeParams[ac]; 2898 2899 aifs = wmep->wmep_aifsn; 2900 /* XXX in sta mode need to pass log values for cwmin/max */ 2901 cwmin = MWL_EXPONENT_TO_VALUE(wmep->wmep_logcwmin); 2902 cwmax = MWL_EXPONENT_TO_VALUE(wmep->wmep_logcwmax); 2903 txoplim = wmep->wmep_txopLimit; /* NB: units of 32us */ 2904 2905 if (mwl_hal_setedcaparams(mh, txq->qnum, cwmin, cwmax, aifs, txoplim)) { 2906 device_printf(sc->sc_dev, "unable to update hardware queue " 2907 "parameters for %s traffic!\n", 2908 ieee80211_wme_acnames[ac]); 2909 return 0; 2910 } 2911 return 1; 2912 #undef MWL_EXPONENT_TO_VALUE 2913 } 2914 2915 /* 2916 * Callback from the 802.11 layer to update WME parameters. 2917 */ 2918 static int 2919 mwl_wme_update(struct ieee80211com *ic) 2920 { 2921 struct mwl_softc *sc = ic->ic_softc; 2922 2923 return !mwl_txq_update(sc, WME_AC_BE) || 2924 !mwl_txq_update(sc, WME_AC_BK) || 2925 !mwl_txq_update(sc, WME_AC_VI) || 2926 !mwl_txq_update(sc, WME_AC_VO) ? EIO : 0; 2927 } 2928 2929 /* 2930 * Reclaim resources for a setup queue. 2931 */ 2932 static void 2933 mwl_tx_cleanupq(struct mwl_softc *sc, struct mwl_txq *txq) 2934 { 2935 /* XXX hal work? */ 2936 MWL_TXQ_LOCK_DESTROY(txq); 2937 } 2938 2939 /* 2940 * Reclaim all tx queue resources. 2941 */ 2942 static void 2943 mwl_tx_cleanup(struct mwl_softc *sc) 2944 { 2945 int i; 2946 2947 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 2948 mwl_tx_cleanupq(sc, &sc->sc_txq[i]); 2949 } 2950 2951 static int 2952 mwl_tx_dmasetup(struct mwl_softc *sc, struct mwl_txbuf *bf, struct mbuf *m0) 2953 { 2954 struct mbuf *m; 2955 int error; 2956 2957 /* 2958 * Load the DMA map so any coalescing is done. This 2959 * also calculates the number of descriptors we need. 2960 */ 2961 error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m0, 2962 bf->bf_segs, &bf->bf_nseg, 2963 BUS_DMA_NOWAIT); 2964 if (error == EFBIG) { 2965 /* XXX packet requires too many descriptors */ 2966 bf->bf_nseg = MWL_TXDESC+1; 2967 } else if (error != 0) { 2968 sc->sc_stats.mst_tx_busdma++; 2969 m_freem(m0); 2970 return error; 2971 } 2972 /* 2973 * Discard null packets and check for packets that 2974 * require too many TX descriptors. We try to convert 2975 * the latter to a cluster. 2976 */ 2977 if (error == EFBIG) { /* too many desc's, linearize */ 2978 sc->sc_stats.mst_tx_linear++; 2979 #if MWL_TXDESC > 1 2980 m = m_collapse(m0, M_NOWAIT, MWL_TXDESC); 2981 #else 2982 m = m_defrag(m0, M_NOWAIT); 2983 #endif 2984 if (m == NULL) { 2985 m_freem(m0); 2986 sc->sc_stats.mst_tx_nombuf++; 2987 return ENOMEM; 2988 } 2989 m0 = m; 2990 error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m0, 2991 bf->bf_segs, &bf->bf_nseg, 2992 BUS_DMA_NOWAIT); 2993 if (error != 0) { 2994 sc->sc_stats.mst_tx_busdma++; 2995 m_freem(m0); 2996 return error; 2997 } 2998 KASSERT(bf->bf_nseg <= MWL_TXDESC, 2999 ("too many segments after defrag; nseg %u", bf->bf_nseg)); 3000 } else if (bf->bf_nseg == 0) { /* null packet, discard */ 3001 sc->sc_stats.mst_tx_nodata++; 3002 m_freem(m0); 3003 return EIO; 3004 } 3005 DPRINTF(sc, MWL_DEBUG_XMIT, "%s: m %p len %u\n", 3006 __func__, m0, m0->m_pkthdr.len); 3007 bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE); 3008 bf->bf_m = m0; 3009 3010 return 0; 3011 } 3012 3013 static __inline int 3014 mwl_cvtlegacyrate(int rate) 3015 { 3016 switch (rate) { 3017 case 2: return 0; 3018 case 4: return 1; 3019 case 11: return 2; 3020 case 22: return 3; 3021 case 44: return 4; 3022 case 12: return 5; 3023 case 18: return 6; 3024 case 24: return 7; 3025 case 36: return 8; 3026 case 48: return 9; 3027 case 72: return 10; 3028 case 96: return 11; 3029 case 108:return 12; 3030 } 3031 return 0; 3032 } 3033 3034 /* 3035 * Calculate fixed tx rate information per client state; 3036 * this value is suitable for writing to the Format field 3037 * of a tx descriptor. 3038 */ 3039 static uint16_t 3040 mwl_calcformat(uint8_t rate, const struct ieee80211_node *ni) 3041 { 3042 uint16_t fmt; 3043 3044 fmt = _IEEE80211_SHIFTMASK(3, EAGLE_TXD_ANTENNA) 3045 | (IEEE80211_IS_CHAN_HT40D(ni->ni_chan) ? 3046 EAGLE_TXD_EXTCHAN_LO : EAGLE_TXD_EXTCHAN_HI); 3047 if (rate & IEEE80211_RATE_MCS) { /* HT MCS */ 3048 fmt |= EAGLE_TXD_FORMAT_HT 3049 /* NB: 0x80 implicitly stripped from ucastrate */ 3050 | _IEEE80211_SHIFTMASK(rate, EAGLE_TXD_RATE); 3051 /* XXX short/long GI may be wrong; re-check */ 3052 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 3053 fmt |= EAGLE_TXD_CHW_40 3054 | (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40 ? 3055 EAGLE_TXD_GI_SHORT : EAGLE_TXD_GI_LONG); 3056 } else { 3057 fmt |= EAGLE_TXD_CHW_20 3058 | (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20 ? 3059 EAGLE_TXD_GI_SHORT : EAGLE_TXD_GI_LONG); 3060 } 3061 } else { /* legacy rate */ 3062 fmt |= EAGLE_TXD_FORMAT_LEGACY 3063 | _IEEE80211_SHIFTMASK(mwl_cvtlegacyrate(rate), 3064 EAGLE_TXD_RATE) 3065 | EAGLE_TXD_CHW_20 3066 /* XXX iv_flags & IEEE80211_F_SHPREAMBLE? */ 3067 | (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_PREAMBLE ? 3068 EAGLE_TXD_PREAMBLE_SHORT : EAGLE_TXD_PREAMBLE_LONG); 3069 } 3070 return fmt; 3071 } 3072 3073 static int 3074 mwl_tx_start(struct mwl_softc *sc, struct ieee80211_node *ni, struct mwl_txbuf *bf, 3075 struct mbuf *m0) 3076 { 3077 struct ieee80211com *ic = &sc->sc_ic; 3078 struct ieee80211vap *vap = ni->ni_vap; 3079 int error, iswep, ismcast; 3080 int hdrlen, pktlen; 3081 struct mwl_txdesc *ds; 3082 struct mwl_txq *txq; 3083 struct ieee80211_frame *wh; 3084 struct mwltxrec *tr; 3085 struct mwl_node *mn; 3086 uint16_t qos; 3087 #if MWL_TXDESC > 1 3088 int i; 3089 #endif 3090 3091 wh = mtod(m0, struct ieee80211_frame *); 3092 iswep = wh->i_fc[1] & IEEE80211_FC1_PROTECTED; 3093 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 3094 hdrlen = ieee80211_anyhdrsize(wh); 3095 pktlen = m0->m_pkthdr.len; 3096 if (IEEE80211_QOS_HAS_SEQ(wh)) { 3097 qos = *(uint16_t *)ieee80211_getqos(wh); 3098 } else 3099 qos = 0; 3100 3101 if (iswep) { 3102 const struct ieee80211_cipher *cip; 3103 struct ieee80211_key *k; 3104 3105 /* 3106 * Construct the 802.11 header+trailer for an encrypted 3107 * frame. The only reason this can fail is because of an 3108 * unknown or unsupported cipher/key type. 3109 * 3110 * NB: we do this even though the firmware will ignore 3111 * what we've done for WEP and TKIP as we need the 3112 * ExtIV filled in for CCMP and this also adjusts 3113 * the headers which simplifies our work below. 3114 */ 3115 k = ieee80211_crypto_encap(ni, m0); 3116 if (k == NULL) { 3117 /* 3118 * This can happen when the key is yanked after the 3119 * frame was queued. Just discard the frame; the 3120 * 802.11 layer counts failures and provides 3121 * debugging/diagnostics. 3122 */ 3123 m_freem(m0); 3124 return EIO; 3125 } 3126 /* 3127 * Adjust the packet length for the crypto additions 3128 * done during encap and any other bits that the f/w 3129 * will add later on. 3130 */ 3131 cip = k->wk_cipher; 3132 pktlen += cip->ic_header + cip->ic_miclen + cip->ic_trailer; 3133 3134 /* packet header may have moved, reset our local pointer */ 3135 wh = mtod(m0, struct ieee80211_frame *); 3136 } 3137 3138 if (ieee80211_radiotap_active_vap(vap)) { 3139 sc->sc_tx_th.wt_flags = 0; /* XXX */ 3140 if (iswep) 3141 sc->sc_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3142 #if 0 3143 sc->sc_tx_th.wt_rate = ds->DataRate; 3144 #endif 3145 sc->sc_tx_th.wt_txpower = ni->ni_txpower; 3146 sc->sc_tx_th.wt_antenna = sc->sc_txantenna; 3147 3148 ieee80211_radiotap_tx(vap, m0); 3149 } 3150 /* 3151 * Copy up/down the 802.11 header; the firmware requires 3152 * we present a 2-byte payload length followed by a 3153 * 4-address header (w/o QoS), followed (optionally) by 3154 * any WEP/ExtIV header (but only filled in for CCMP). 3155 * We are assured the mbuf has sufficient headroom to 3156 * prepend in-place by the setup of ic_headroom in 3157 * mwl_attach. 3158 */ 3159 if (hdrlen < sizeof(struct mwltxrec)) { 3160 const int space = sizeof(struct mwltxrec) - hdrlen; 3161 if (M_LEADINGSPACE(m0) < space) { 3162 /* NB: should never happen */ 3163 device_printf(sc->sc_dev, 3164 "not enough headroom, need %d found %zd, " 3165 "m_flags 0x%x m_len %d\n", 3166 space, M_LEADINGSPACE(m0), m0->m_flags, m0->m_len); 3167 ieee80211_dump_pkt(ic, 3168 mtod(m0, const uint8_t *), m0->m_len, 0, -1); 3169 m_freem(m0); 3170 sc->sc_stats.mst_tx_noheadroom++; 3171 return EIO; 3172 } 3173 M_PREPEND(m0, space, M_NOWAIT); 3174 } 3175 tr = mtod(m0, struct mwltxrec *); 3176 if (wh != (struct ieee80211_frame *) &tr->wh) 3177 ovbcopy(wh, &tr->wh, hdrlen); 3178 /* 3179 * Note: the "firmware length" is actually the length 3180 * of the fully formed "802.11 payload". That is, it's 3181 * everything except for the 802.11 header. In particular 3182 * this includes all crypto material including the MIC! 3183 */ 3184 tr->fwlen = htole16(pktlen - hdrlen); 3185 3186 /* 3187 * Load the DMA map so any coalescing is done. This 3188 * also calculates the number of descriptors we need. 3189 */ 3190 error = mwl_tx_dmasetup(sc, bf, m0); 3191 if (error != 0) { 3192 /* NB: stat collected in mwl_tx_dmasetup */ 3193 DPRINTF(sc, MWL_DEBUG_XMIT, 3194 "%s: unable to setup dma\n", __func__); 3195 return error; 3196 } 3197 bf->bf_node = ni; /* NB: held reference */ 3198 m0 = bf->bf_m; /* NB: may have changed */ 3199 tr = mtod(m0, struct mwltxrec *); 3200 wh = (struct ieee80211_frame *)&tr->wh; 3201 3202 /* 3203 * Formulate tx descriptor. 3204 */ 3205 ds = bf->bf_desc; 3206 txq = bf->bf_txq; 3207 3208 ds->QosCtrl = qos; /* NB: already little-endian */ 3209 #if MWL_TXDESC == 1 3210 /* 3211 * NB: multiframes should be zero because the descriptors 3212 * are initialized to zero. This should handle the case 3213 * where the driver is built with MWL_TXDESC=1 but we are 3214 * using firmware with multi-segment support. 3215 */ 3216 ds->PktPtr = htole32(bf->bf_segs[0].ds_addr); 3217 ds->PktLen = htole16(bf->bf_segs[0].ds_len); 3218 #else 3219 ds->multiframes = htole32(bf->bf_nseg); 3220 ds->PktLen = htole16(m0->m_pkthdr.len); 3221 for (i = 0; i < bf->bf_nseg; i++) { 3222 ds->PktPtrArray[i] = htole32(bf->bf_segs[i].ds_addr); 3223 ds->PktLenArray[i] = htole16(bf->bf_segs[i].ds_len); 3224 } 3225 #endif 3226 /* NB: pPhysNext, DataRate, and SapPktInfo setup once, don't touch */ 3227 ds->Format = 0; 3228 ds->pad = 0; 3229 ds->ack_wcb_addr = 0; 3230 3231 mn = MWL_NODE(ni); 3232 /* 3233 * Select transmit rate. 3234 */ 3235 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 3236 case IEEE80211_FC0_TYPE_MGT: 3237 sc->sc_stats.mst_tx_mgmt++; 3238 /* fall thru... */ 3239 case IEEE80211_FC0_TYPE_CTL: 3240 /* NB: assign to BE q to avoid bursting */ 3241 ds->TxPriority = MWL_WME_AC_BE; 3242 break; 3243 case IEEE80211_FC0_TYPE_DATA: 3244 if (!ismcast) { 3245 const struct ieee80211_txparam *tp = ni->ni_txparms; 3246 /* 3247 * EAPOL frames get forced to a fixed rate and w/o 3248 * aggregation; otherwise check for any fixed rate 3249 * for the client (may depend on association state). 3250 */ 3251 if (m0->m_flags & M_EAPOL) { 3252 const struct mwl_vap *mvp = MWL_VAP_CONST(vap); 3253 ds->Format = mvp->mv_eapolformat; 3254 ds->pad = htole16( 3255 EAGLE_TXD_FIXED_RATE | EAGLE_TXD_DONT_AGGR); 3256 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) { 3257 /* XXX pre-calculate per node */ 3258 ds->Format = htole16( 3259 mwl_calcformat(tp->ucastrate, ni)); 3260 ds->pad = htole16(EAGLE_TXD_FIXED_RATE); 3261 } 3262 /* NB: EAPOL frames will never have qos set */ 3263 if (qos == 0) 3264 ds->TxPriority = txq->qnum; 3265 #if MWL_MAXBA > 3 3266 else if (mwl_bastream_match(&mn->mn_ba[3], qos)) 3267 ds->TxPriority = mn->mn_ba[3].txq; 3268 #endif 3269 #if MWL_MAXBA > 2 3270 else if (mwl_bastream_match(&mn->mn_ba[2], qos)) 3271 ds->TxPriority = mn->mn_ba[2].txq; 3272 #endif 3273 #if MWL_MAXBA > 1 3274 else if (mwl_bastream_match(&mn->mn_ba[1], qos)) 3275 ds->TxPriority = mn->mn_ba[1].txq; 3276 #endif 3277 #if MWL_MAXBA > 0 3278 else if (mwl_bastream_match(&mn->mn_ba[0], qos)) 3279 ds->TxPriority = mn->mn_ba[0].txq; 3280 #endif 3281 else 3282 ds->TxPriority = txq->qnum; 3283 } else 3284 ds->TxPriority = txq->qnum; 3285 break; 3286 default: 3287 device_printf(sc->sc_dev, "bogus frame type 0x%x (%s)\n", 3288 wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK, __func__); 3289 sc->sc_stats.mst_tx_badframetype++; 3290 m_freem(m0); 3291 return EIO; 3292 } 3293 3294 if (IFF_DUMPPKTS_XMIT(sc)) 3295 ieee80211_dump_pkt(ic, 3296 mtod(m0, const uint8_t *)+sizeof(uint16_t), 3297 m0->m_len - sizeof(uint16_t), ds->DataRate, -1); 3298 3299 MWL_TXQ_LOCK(txq); 3300 ds->Status = htole32(EAGLE_TXD_STATUS_FW_OWNED); 3301 STAILQ_INSERT_TAIL(&txq->active, bf, bf_list); 3302 MWL_TXDESC_SYNC(txq, ds, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 3303 3304 sc->sc_tx_timer = 5; 3305 MWL_TXQ_UNLOCK(txq); 3306 3307 return 0; 3308 } 3309 3310 static __inline int 3311 mwl_cvtlegacyrix(int rix) 3312 { 3313 static const int ieeerates[] = 3314 { 2, 4, 11, 22, 44, 12, 18, 24, 36, 48, 72, 96, 108 }; 3315 return (rix < nitems(ieeerates) ? ieeerates[rix] : 0); 3316 } 3317 3318 /* 3319 * Process completed xmit descriptors from the specified queue. 3320 */ 3321 static int 3322 mwl_tx_processq(struct mwl_softc *sc, struct mwl_txq *txq) 3323 { 3324 #define EAGLE_TXD_STATUS_MCAST \ 3325 (EAGLE_TXD_STATUS_MULTICAST_TX | EAGLE_TXD_STATUS_BROADCAST_TX) 3326 struct ieee80211com *ic = &sc->sc_ic; 3327 struct mwl_txbuf *bf; 3328 struct mwl_txdesc *ds; 3329 struct ieee80211_node *ni; 3330 int nreaped; 3331 uint32_t status; 3332 3333 DPRINTF(sc, MWL_DEBUG_TX_PROC, "%s: tx queue %u\n", __func__, txq->qnum); 3334 for (nreaped = 0;; nreaped++) { 3335 MWL_TXQ_LOCK(txq); 3336 bf = STAILQ_FIRST(&txq->active); 3337 if (bf == NULL) { 3338 MWL_TXQ_UNLOCK(txq); 3339 break; 3340 } 3341 ds = bf->bf_desc; 3342 MWL_TXDESC_SYNC(txq, ds, 3343 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 3344 if (ds->Status & htole32(EAGLE_TXD_STATUS_FW_OWNED)) { 3345 MWL_TXQ_UNLOCK(txq); 3346 break; 3347 } 3348 STAILQ_REMOVE_HEAD(&txq->active, bf_list); 3349 MWL_TXQ_UNLOCK(txq); 3350 3351 #ifdef MWL_DEBUG 3352 if (sc->sc_debug & MWL_DEBUG_XMIT_DESC) 3353 mwl_printtxbuf(bf, txq->qnum, nreaped); 3354 #endif 3355 ni = bf->bf_node; 3356 if (ni != NULL) { 3357 status = le32toh(ds->Status); 3358 if (status & EAGLE_TXD_STATUS_OK) { 3359 uint16_t Format = le16toh(ds->Format); 3360 uint8_t txant = _IEEE80211_MASKSHIFT(Format, 3361 EAGLE_TXD_ANTENNA); 3362 3363 sc->sc_stats.mst_ant_tx[txant]++; 3364 if (status & EAGLE_TXD_STATUS_OK_RETRY) 3365 sc->sc_stats.mst_tx_retries++; 3366 if (status & EAGLE_TXD_STATUS_OK_MORE_RETRY) 3367 sc->sc_stats.mst_tx_mretries++; 3368 if (txq->qnum >= MWL_WME_AC_VO) 3369 ic->ic_wme.wme_hipri_traffic++; 3370 ni->ni_txrate = _IEEE80211_MASKSHIFT(Format, 3371 EAGLE_TXD_RATE); 3372 if ((Format & EAGLE_TXD_FORMAT_HT) == 0) { 3373 ni->ni_txrate = mwl_cvtlegacyrix( 3374 ni->ni_txrate); 3375 } else 3376 ni->ni_txrate |= IEEE80211_RATE_MCS; 3377 sc->sc_stats.mst_tx_rate = ni->ni_txrate; 3378 } else { 3379 if (status & EAGLE_TXD_STATUS_FAILED_LINK_ERROR) 3380 sc->sc_stats.mst_tx_linkerror++; 3381 if (status & EAGLE_TXD_STATUS_FAILED_XRETRY) 3382 sc->sc_stats.mst_tx_xretries++; 3383 if (status & EAGLE_TXD_STATUS_FAILED_AGING) 3384 sc->sc_stats.mst_tx_aging++; 3385 if (bf->bf_m->m_flags & M_FF) 3386 sc->sc_stats.mst_ff_txerr++; 3387 } 3388 if (bf->bf_m->m_flags & M_TXCB) 3389 /* XXX strip fw len in case header inspected */ 3390 m_adj(bf->bf_m, sizeof(uint16_t)); 3391 ieee80211_tx_complete(ni, bf->bf_m, 3392 (status & EAGLE_TXD_STATUS_OK) == 0); 3393 } else 3394 m_freem(bf->bf_m); 3395 ds->Status = htole32(EAGLE_TXD_STATUS_IDLE); 3396 3397 bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, 3398 BUS_DMASYNC_POSTWRITE); 3399 bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap); 3400 3401 mwl_puttxbuf_tail(txq, bf); 3402 } 3403 return nreaped; 3404 #undef EAGLE_TXD_STATUS_MCAST 3405 } 3406 3407 /* 3408 * Deferred processing of transmit interrupt; special-cased 3409 * for four hardware queues, 0-3. 3410 */ 3411 static void 3412 mwl_tx_proc(void *arg, int npending) 3413 { 3414 struct mwl_softc *sc = arg; 3415 int nreaped; 3416 3417 /* 3418 * Process each active queue. 3419 */ 3420 nreaped = 0; 3421 if (!STAILQ_EMPTY(&sc->sc_txq[0].active)) 3422 nreaped += mwl_tx_processq(sc, &sc->sc_txq[0]); 3423 if (!STAILQ_EMPTY(&sc->sc_txq[1].active)) 3424 nreaped += mwl_tx_processq(sc, &sc->sc_txq[1]); 3425 if (!STAILQ_EMPTY(&sc->sc_txq[2].active)) 3426 nreaped += mwl_tx_processq(sc, &sc->sc_txq[2]); 3427 if (!STAILQ_EMPTY(&sc->sc_txq[3].active)) 3428 nreaped += mwl_tx_processq(sc, &sc->sc_txq[3]); 3429 3430 if (nreaped != 0) { 3431 sc->sc_tx_timer = 0; 3432 if (mbufq_first(&sc->sc_snd) != NULL) { 3433 /* NB: kick fw; the tx thread may have been preempted */ 3434 mwl_hal_txstart(sc->sc_mh, 0); 3435 mwl_start(sc); 3436 } 3437 } 3438 } 3439 3440 static void 3441 mwl_tx_draintxq(struct mwl_softc *sc, struct mwl_txq *txq) 3442 { 3443 struct ieee80211_node *ni; 3444 struct mwl_txbuf *bf; 3445 u_int ix __unused; 3446 3447 /* 3448 * NB: this assumes output has been stopped and 3449 * we do not need to block mwl_tx_tasklet 3450 */ 3451 for (ix = 0;; ix++) { 3452 MWL_TXQ_LOCK(txq); 3453 bf = STAILQ_FIRST(&txq->active); 3454 if (bf == NULL) { 3455 MWL_TXQ_UNLOCK(txq); 3456 break; 3457 } 3458 STAILQ_REMOVE_HEAD(&txq->active, bf_list); 3459 MWL_TXQ_UNLOCK(txq); 3460 #ifdef MWL_DEBUG 3461 if (sc->sc_debug & MWL_DEBUG_RESET) { 3462 struct ieee80211com *ic = &sc->sc_ic; 3463 const struct mwltxrec *tr = 3464 mtod(bf->bf_m, const struct mwltxrec *); 3465 mwl_printtxbuf(bf, txq->qnum, ix); 3466 ieee80211_dump_pkt(ic, (const uint8_t *)&tr->wh, 3467 bf->bf_m->m_len - sizeof(tr->fwlen), 0, -1); 3468 } 3469 #endif /* MWL_DEBUG */ 3470 bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap); 3471 ni = bf->bf_node; 3472 if (ni != NULL) { 3473 /* 3474 * Reclaim node reference. 3475 */ 3476 ieee80211_free_node(ni); 3477 } 3478 m_freem(bf->bf_m); 3479 3480 mwl_puttxbuf_tail(txq, bf); 3481 } 3482 } 3483 3484 /* 3485 * Drain the transmit queues and reclaim resources. 3486 */ 3487 static void 3488 mwl_draintxq(struct mwl_softc *sc) 3489 { 3490 int i; 3491 3492 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 3493 mwl_tx_draintxq(sc, &sc->sc_txq[i]); 3494 sc->sc_tx_timer = 0; 3495 } 3496 3497 #ifdef MWL_DIAGAPI 3498 /* 3499 * Reset the transmit queues to a pristine state after a fw download. 3500 */ 3501 static void 3502 mwl_resettxq(struct mwl_softc *sc) 3503 { 3504 int i; 3505 3506 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 3507 mwl_txq_reset(sc, &sc->sc_txq[i]); 3508 } 3509 #endif /* MWL_DIAGAPI */ 3510 3511 /* 3512 * Clear the transmit queues of any frames submitted for the 3513 * specified vap. This is done when the vap is deleted so we 3514 * don't potentially reference the vap after it is gone. 3515 * Note we cannot remove the frames; we only reclaim the node 3516 * reference. 3517 */ 3518 static void 3519 mwl_cleartxq(struct mwl_softc *sc, struct ieee80211vap *vap) 3520 { 3521 struct mwl_txq *txq; 3522 struct mwl_txbuf *bf; 3523 int i; 3524 3525 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) { 3526 txq = &sc->sc_txq[i]; 3527 MWL_TXQ_LOCK(txq); 3528 STAILQ_FOREACH(bf, &txq->active, bf_list) { 3529 struct ieee80211_node *ni = bf->bf_node; 3530 if (ni != NULL && ni->ni_vap == vap) { 3531 bf->bf_node = NULL; 3532 ieee80211_free_node(ni); 3533 } 3534 } 3535 MWL_TXQ_UNLOCK(txq); 3536 } 3537 } 3538 3539 static int 3540 mwl_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 3541 const uint8_t *frm, const uint8_t *efrm) 3542 { 3543 struct mwl_softc *sc = ni->ni_ic->ic_softc; 3544 const struct ieee80211_action *ia; 3545 3546 ia = (const struct ieee80211_action *) frm; 3547 if (ia->ia_category == IEEE80211_ACTION_CAT_HT && 3548 ia->ia_action == IEEE80211_ACTION_HT_MIMOPWRSAVE) { 3549 const struct ieee80211_action_ht_mimopowersave *mps = 3550 (const struct ieee80211_action_ht_mimopowersave *) ia; 3551 3552 mwl_hal_setmimops(sc->sc_mh, ni->ni_macaddr, 3553 mps->am_control & IEEE80211_A_HT_MIMOPWRSAVE_ENA, 3554 _IEEE80211_MASKSHIFT(mps->am_control, 3555 IEEE80211_A_HT_MIMOPWRSAVE_MODE)); 3556 return 0; 3557 } else 3558 return sc->sc_recv_action(ni, wh, frm, efrm); 3559 } 3560 3561 static int 3562 mwl_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3563 int dialogtoken, int baparamset, int batimeout) 3564 { 3565 struct mwl_softc *sc = ni->ni_ic->ic_softc; 3566 struct ieee80211vap *vap = ni->ni_vap; 3567 struct mwl_node *mn = MWL_NODE(ni); 3568 struct mwl_bastate *bas; 3569 3570 bas = tap->txa_private; 3571 if (bas == NULL) { 3572 const MWL_HAL_BASTREAM *sp; 3573 /* 3574 * Check for a free BA stream slot. 3575 */ 3576 #if MWL_MAXBA > 3 3577 if (mn->mn_ba[3].bastream == NULL) 3578 bas = &mn->mn_ba[3]; 3579 else 3580 #endif 3581 #if MWL_MAXBA > 2 3582 if (mn->mn_ba[2].bastream == NULL) 3583 bas = &mn->mn_ba[2]; 3584 else 3585 #endif 3586 #if MWL_MAXBA > 1 3587 if (mn->mn_ba[1].bastream == NULL) 3588 bas = &mn->mn_ba[1]; 3589 else 3590 #endif 3591 #if MWL_MAXBA > 0 3592 if (mn->mn_ba[0].bastream == NULL) 3593 bas = &mn->mn_ba[0]; 3594 else 3595 #endif 3596 { 3597 /* sta already has max BA streams */ 3598 /* XXX assign BA stream to highest priority tid */ 3599 DPRINTF(sc, MWL_DEBUG_AMPDU, 3600 "%s: already has max bastreams\n", __func__); 3601 sc->sc_stats.mst_ampdu_reject++; 3602 return 0; 3603 } 3604 /* NB: no held reference to ni */ 3605 sp = mwl_hal_bastream_alloc(MWL_VAP(vap)->mv_hvap, 3606 (baparamset & IEEE80211_BAPS_POLICY_IMMEDIATE) != 0, 3607 ni->ni_macaddr, tap->txa_tid, ni->ni_htparam, 3608 ni, tap); 3609 if (sp == NULL) { 3610 /* 3611 * No available stream, return 0 so no 3612 * a-mpdu aggregation will be done. 3613 */ 3614 DPRINTF(sc, MWL_DEBUG_AMPDU, 3615 "%s: no bastream available\n", __func__); 3616 sc->sc_stats.mst_ampdu_nostream++; 3617 return 0; 3618 } 3619 DPRINTF(sc, MWL_DEBUG_AMPDU, "%s: alloc bastream %p\n", 3620 __func__, sp); 3621 /* NB: qos is left zero so we won't match in mwl_tx_start */ 3622 bas->bastream = sp; 3623 tap->txa_private = bas; 3624 } 3625 /* fetch current seq# from the firmware; if available */ 3626 if (mwl_hal_bastream_get_seqno(sc->sc_mh, bas->bastream, 3627 vap->iv_opmode == IEEE80211_M_STA ? vap->iv_myaddr : ni->ni_macaddr, 3628 &tap->txa_start) != 0) 3629 tap->txa_start = 0; 3630 return sc->sc_addba_request(ni, tap, dialogtoken, baparamset, batimeout); 3631 } 3632 3633 static int 3634 mwl_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3635 int code, int baparamset, int batimeout) 3636 { 3637 struct mwl_softc *sc = ni->ni_ic->ic_softc; 3638 struct mwl_bastate *bas; 3639 3640 bas = tap->txa_private; 3641 if (bas == NULL) { 3642 /* XXX should not happen */ 3643 DPRINTF(sc, MWL_DEBUG_AMPDU, 3644 "%s: no BA stream allocated, TID %d\n", 3645 __func__, tap->txa_tid); 3646 sc->sc_stats.mst_addba_nostream++; 3647 return 0; 3648 } 3649 if (code == IEEE80211_STATUS_SUCCESS) { 3650 struct ieee80211vap *vap = ni->ni_vap; 3651 int bufsiz, error; 3652 3653 /* 3654 * Tell the firmware to setup the BA stream; 3655 * we know resources are available because we 3656 * pre-allocated one before forming the request. 3657 */ 3658 bufsiz = _IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_BUFSIZ); 3659 if (bufsiz == 0) 3660 bufsiz = IEEE80211_AGGR_BAWMAX; 3661 error = mwl_hal_bastream_create(MWL_VAP(vap)->mv_hvap, 3662 bas->bastream, bufsiz, bufsiz, tap->txa_start); 3663 if (error != 0) { 3664 /* 3665 * Setup failed, return immediately so no a-mpdu 3666 * aggregation will be done. 3667 */ 3668 mwl_hal_bastream_destroy(sc->sc_mh, bas->bastream); 3669 mwl_bastream_free(bas); 3670 tap->txa_private = NULL; 3671 3672 DPRINTF(sc, MWL_DEBUG_AMPDU, 3673 "%s: create failed, error %d, bufsiz %d TID %d " 3674 "htparam 0x%x\n", __func__, error, bufsiz, 3675 tap->txa_tid, ni->ni_htparam); 3676 sc->sc_stats.mst_bacreate_failed++; 3677 return 0; 3678 } 3679 /* NB: cache txq to avoid ptr indirect */ 3680 mwl_bastream_setup(bas, tap->txa_tid, bas->bastream->txq); 3681 DPRINTF(sc, MWL_DEBUG_AMPDU, 3682 "%s: bastream %p assigned to txq %d TID %d bufsiz %d " 3683 "htparam 0x%x\n", __func__, bas->bastream, 3684 bas->txq, tap->txa_tid, bufsiz, ni->ni_htparam); 3685 } else { 3686 /* 3687 * Other side NAK'd us; return the resources. 3688 */ 3689 DPRINTF(sc, MWL_DEBUG_AMPDU, 3690 "%s: request failed with code %d, destroy bastream %p\n", 3691 __func__, code, bas->bastream); 3692 mwl_hal_bastream_destroy(sc->sc_mh, bas->bastream); 3693 mwl_bastream_free(bas); 3694 tap->txa_private = NULL; 3695 } 3696 /* NB: firmware sends BAR so we don't need to */ 3697 return sc->sc_addba_response(ni, tap, code, baparamset, batimeout); 3698 } 3699 3700 static void 3701 mwl_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3702 { 3703 struct mwl_softc *sc = ni->ni_ic->ic_softc; 3704 struct mwl_bastate *bas; 3705 3706 bas = tap->txa_private; 3707 if (bas != NULL) { 3708 DPRINTF(sc, MWL_DEBUG_AMPDU, "%s: destroy bastream %p\n", 3709 __func__, bas->bastream); 3710 mwl_hal_bastream_destroy(sc->sc_mh, bas->bastream); 3711 mwl_bastream_free(bas); 3712 tap->txa_private = NULL; 3713 } 3714 sc->sc_addba_stop(ni, tap); 3715 } 3716 3717 /* 3718 * Setup the rx data structures. This should only be 3719 * done once or we may get out of sync with the firmware. 3720 */ 3721 static int 3722 mwl_startrecv(struct mwl_softc *sc) 3723 { 3724 if (!sc->sc_recvsetup) { 3725 struct mwl_rxbuf *bf, *prev; 3726 struct mwl_rxdesc *ds; 3727 3728 prev = NULL; 3729 STAILQ_FOREACH(bf, &sc->sc_rxbuf, bf_list) { 3730 int error = mwl_rxbuf_init(sc, bf); 3731 if (error != 0) { 3732 DPRINTF(sc, MWL_DEBUG_RECV, 3733 "%s: mwl_rxbuf_init failed %d\n", 3734 __func__, error); 3735 return error; 3736 } 3737 if (prev != NULL) { 3738 ds = prev->bf_desc; 3739 ds->pPhysNext = htole32(bf->bf_daddr); 3740 } 3741 prev = bf; 3742 } 3743 if (prev != NULL) { 3744 ds = prev->bf_desc; 3745 ds->pPhysNext = 3746 htole32(STAILQ_FIRST(&sc->sc_rxbuf)->bf_daddr); 3747 } 3748 sc->sc_recvsetup = 1; 3749 } 3750 mwl_mode_init(sc); /* set filters, etc. */ 3751 return 0; 3752 } 3753 3754 static MWL_HAL_APMODE 3755 mwl_getapmode(const struct ieee80211vap *vap, struct ieee80211_channel *chan) 3756 { 3757 MWL_HAL_APMODE mode; 3758 3759 if (IEEE80211_IS_CHAN_HT(chan)) { 3760 if (vap->iv_flags_ht & IEEE80211_FHT_PUREN) 3761 mode = AP_MODE_N_ONLY; 3762 else if (IEEE80211_IS_CHAN_5GHZ(chan)) 3763 mode = AP_MODE_AandN; 3764 else if (vap->iv_flags & IEEE80211_F_PUREG) 3765 mode = AP_MODE_GandN; 3766 else 3767 mode = AP_MODE_BandGandN; 3768 } else if (IEEE80211_IS_CHAN_ANYG(chan)) { 3769 if (vap->iv_flags & IEEE80211_F_PUREG) 3770 mode = AP_MODE_G_ONLY; 3771 else 3772 mode = AP_MODE_MIXED; 3773 } else if (IEEE80211_IS_CHAN_B(chan)) 3774 mode = AP_MODE_B_ONLY; 3775 else if (IEEE80211_IS_CHAN_A(chan)) 3776 mode = AP_MODE_A_ONLY; 3777 else 3778 mode = AP_MODE_MIXED; /* XXX should not happen? */ 3779 return mode; 3780 } 3781 3782 static int 3783 mwl_setapmode(struct ieee80211vap *vap, struct ieee80211_channel *chan) 3784 { 3785 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 3786 return mwl_hal_setapmode(hvap, mwl_getapmode(vap, chan)); 3787 } 3788 3789 /* 3790 * Set/change channels. 3791 */ 3792 static int 3793 mwl_chan_set(struct mwl_softc *sc, struct ieee80211_channel *chan) 3794 { 3795 struct mwl_hal *mh = sc->sc_mh; 3796 struct ieee80211com *ic = &sc->sc_ic; 3797 MWL_HAL_CHANNEL hchan; 3798 int maxtxpow; 3799 3800 DPRINTF(sc, MWL_DEBUG_RESET, "%s: chan %u MHz/flags 0x%x\n", 3801 __func__, chan->ic_freq, chan->ic_flags); 3802 3803 /* 3804 * Convert to a HAL channel description with 3805 * the flags constrained to reflect the current 3806 * operating mode. 3807 */ 3808 mwl_mapchan(&hchan, chan); 3809 mwl_hal_intrset(mh, 0); /* disable interrupts */ 3810 #if 0 3811 mwl_draintxq(sc); /* clear pending tx frames */ 3812 #endif 3813 mwl_hal_setchannel(mh, &hchan); 3814 /* 3815 * Tx power is cap'd by the regulatory setting and 3816 * possibly a user-set limit. We pass the min of 3817 * these to the hal to apply them to the cal data 3818 * for this channel. 3819 * XXX min bound? 3820 */ 3821 maxtxpow = 2*chan->ic_maxregpower; 3822 if (maxtxpow > ic->ic_txpowlimit) 3823 maxtxpow = ic->ic_txpowlimit; 3824 mwl_hal_settxpower(mh, &hchan, maxtxpow / 2); 3825 /* NB: potentially change mcast/mgt rates */ 3826 mwl_setcurchanrates(sc); 3827 3828 /* 3829 * Update internal state. 3830 */ 3831 sc->sc_tx_th.wt_chan_freq = htole16(chan->ic_freq); 3832 sc->sc_rx_th.wr_chan_freq = htole16(chan->ic_freq); 3833 if (IEEE80211_IS_CHAN_A(chan)) { 3834 sc->sc_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_A); 3835 sc->sc_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_A); 3836 } else if (IEEE80211_IS_CHAN_ANYG(chan)) { 3837 sc->sc_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_G); 3838 sc->sc_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_G); 3839 } else { 3840 sc->sc_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_B); 3841 sc->sc_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_B); 3842 } 3843 sc->sc_curchan = hchan; 3844 mwl_hal_intrset(mh, sc->sc_imask); 3845 3846 return 0; 3847 } 3848 3849 static void 3850 mwl_scan_start(struct ieee80211com *ic) 3851 { 3852 struct mwl_softc *sc = ic->ic_softc; 3853 3854 DPRINTF(sc, MWL_DEBUG_STATE, "%s\n", __func__); 3855 } 3856 3857 static void 3858 mwl_scan_end(struct ieee80211com *ic) 3859 { 3860 struct mwl_softc *sc = ic->ic_softc; 3861 3862 DPRINTF(sc, MWL_DEBUG_STATE, "%s\n", __func__); 3863 } 3864 3865 static void 3866 mwl_set_channel(struct ieee80211com *ic) 3867 { 3868 struct mwl_softc *sc = ic->ic_softc; 3869 3870 (void) mwl_chan_set(sc, ic->ic_curchan); 3871 } 3872 3873 /* 3874 * Handle a channel switch request. We inform the firmware 3875 * and mark the global state to suppress various actions. 3876 * NB: we issue only one request to the fw; we may be called 3877 * multiple times if there are multiple vap's. 3878 */ 3879 static void 3880 mwl_startcsa(struct ieee80211vap *vap) 3881 { 3882 struct ieee80211com *ic = vap->iv_ic; 3883 struct mwl_softc *sc = ic->ic_softc; 3884 MWL_HAL_CHANNEL hchan; 3885 3886 if (sc->sc_csapending) 3887 return; 3888 3889 mwl_mapchan(&hchan, ic->ic_csa_newchan); 3890 /* 1 =>'s quiet channel */ 3891 mwl_hal_setchannelswitchie(sc->sc_mh, &hchan, 1, ic->ic_csa_count); 3892 sc->sc_csapending = 1; 3893 } 3894 3895 /* 3896 * Plumb any static WEP key for the station. This is 3897 * necessary as we must propagate the key from the 3898 * global key table of the vap to each sta db entry. 3899 */ 3900 static void 3901 mwl_setanywepkey(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 3902 { 3903 if ((vap->iv_flags & (IEEE80211_F_PRIVACY|IEEE80211_F_WPA)) == 3904 IEEE80211_F_PRIVACY && 3905 vap->iv_def_txkey != IEEE80211_KEYIX_NONE && 3906 vap->iv_nw_keys[vap->iv_def_txkey].wk_keyix != IEEE80211_KEYIX_NONE) 3907 (void) _mwl_key_set(vap, &vap->iv_nw_keys[vap->iv_def_txkey], 3908 mac); 3909 } 3910 3911 static int 3912 mwl_peerstadb(struct ieee80211_node *ni, int aid, int staid, MWL_HAL_PEERINFO *pi) 3913 { 3914 #define WME(ie) ((const struct ieee80211_wme_info *) ie) 3915 struct ieee80211vap *vap = ni->ni_vap; 3916 struct mwl_hal_vap *hvap; 3917 int error; 3918 3919 if (vap->iv_opmode == IEEE80211_M_WDS) { 3920 /* 3921 * WDS vap's do not have a f/w vap; instead they piggyback 3922 * on an AP vap and we must install the sta db entry and 3923 * crypto state using that AP's handle (the WDS vap has none). 3924 */ 3925 hvap = MWL_VAP(vap)->mv_ap_hvap; 3926 } else 3927 hvap = MWL_VAP(vap)->mv_hvap; 3928 error = mwl_hal_newstation(hvap, ni->ni_macaddr, 3929 aid, staid, pi, 3930 ni->ni_flags & (IEEE80211_NODE_QOS | IEEE80211_NODE_HT), 3931 ni->ni_ies.wme_ie != NULL ? WME(ni->ni_ies.wme_ie)->wme_info : 0); 3932 if (error == 0) { 3933 /* 3934 * Setup security for this station. For sta mode this is 3935 * needed even though do the same thing on transition to 3936 * AUTH state because the call to mwl_hal_newstation 3937 * clobbers the crypto state we setup. 3938 */ 3939 mwl_setanywepkey(vap, ni->ni_macaddr); 3940 } 3941 return error; 3942 #undef WME 3943 } 3944 3945 static void 3946 mwl_setglobalkeys(struct ieee80211vap *vap) 3947 { 3948 struct ieee80211_key *wk; 3949 3950 wk = &vap->iv_nw_keys[0]; 3951 for (; wk < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; wk++) 3952 if (wk->wk_keyix != IEEE80211_KEYIX_NONE) 3953 (void) _mwl_key_set(vap, wk, vap->iv_myaddr); 3954 } 3955 3956 /* 3957 * Convert a legacy rate set to a firmware bitmask. 3958 */ 3959 static uint32_t 3960 get_rate_bitmap(const struct ieee80211_rateset *rs) 3961 { 3962 uint32_t rates; 3963 int i; 3964 3965 rates = 0; 3966 for (i = 0; i < rs->rs_nrates; i++) 3967 switch (rs->rs_rates[i] & IEEE80211_RATE_VAL) { 3968 case 2: rates |= 0x001; break; 3969 case 4: rates |= 0x002; break; 3970 case 11: rates |= 0x004; break; 3971 case 22: rates |= 0x008; break; 3972 case 44: rates |= 0x010; break; 3973 case 12: rates |= 0x020; break; 3974 case 18: rates |= 0x040; break; 3975 case 24: rates |= 0x080; break; 3976 case 36: rates |= 0x100; break; 3977 case 48: rates |= 0x200; break; 3978 case 72: rates |= 0x400; break; 3979 case 96: rates |= 0x800; break; 3980 case 108: rates |= 0x1000; break; 3981 } 3982 return rates; 3983 } 3984 3985 /* 3986 * Construct an HT firmware bitmask from an HT rate set. 3987 */ 3988 static uint32_t 3989 get_htrate_bitmap(const struct ieee80211_htrateset *rs) 3990 { 3991 uint32_t rates; 3992 int i; 3993 3994 rates = 0; 3995 for (i = 0; i < rs->rs_nrates; i++) { 3996 if (rs->rs_rates[i] < 16) 3997 rates |= 1<<rs->rs_rates[i]; 3998 } 3999 return rates; 4000 } 4001 4002 /* 4003 * Craft station database entry for station. 4004 * NB: use host byte order here, the hal handles byte swapping. 4005 */ 4006 static MWL_HAL_PEERINFO * 4007 mkpeerinfo(MWL_HAL_PEERINFO *pi, const struct ieee80211_node *ni) 4008 { 4009 const struct ieee80211vap *vap = ni->ni_vap; 4010 4011 memset(pi, 0, sizeof(*pi)); 4012 pi->LegacyRateBitMap = get_rate_bitmap(&ni->ni_rates); 4013 pi->CapInfo = ni->ni_capinfo; 4014 if (ni->ni_flags & IEEE80211_NODE_HT) { 4015 /* HT capabilities, etc */ 4016 pi->HTCapabilitiesInfo = ni->ni_htcap; 4017 /* XXX pi.HTCapabilitiesInfo */ 4018 pi->MacHTParamInfo = ni->ni_htparam; 4019 pi->HTRateBitMap = get_htrate_bitmap(&ni->ni_htrates); 4020 pi->AddHtInfo.ControlChan = ni->ni_htctlchan; 4021 pi->AddHtInfo.AddChan = ni->ni_ht2ndchan; 4022 pi->AddHtInfo.OpMode = ni->ni_htopmode; 4023 pi->AddHtInfo.stbc = ni->ni_htstbc; 4024 4025 /* constrain according to local configuration */ 4026 if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40) == 0) 4027 pi->HTCapabilitiesInfo &= ~IEEE80211_HTCAP_SHORTGI40; 4028 if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20) == 0) 4029 pi->HTCapabilitiesInfo &= ~IEEE80211_HTCAP_SHORTGI20; 4030 if (ni->ni_chw != 40) 4031 pi->HTCapabilitiesInfo &= ~IEEE80211_HTCAP_CHWIDTH40; 4032 } 4033 return pi; 4034 } 4035 4036 /* 4037 * Re-create the local sta db entry for a vap to ensure 4038 * up to date WME state is pushed to the firmware. Because 4039 * this resets crypto state this must be followed by a 4040 * reload of any keys in the global key table. 4041 */ 4042 static int 4043 mwl_localstadb(struct ieee80211vap *vap) 4044 { 4045 #define WME(ie) ((const struct ieee80211_wme_info *) ie) 4046 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 4047 struct ieee80211_node *bss; 4048 MWL_HAL_PEERINFO pi; 4049 int error; 4050 4051 switch (vap->iv_opmode) { 4052 case IEEE80211_M_STA: 4053 bss = vap->iv_bss; 4054 error = mwl_hal_newstation(hvap, vap->iv_myaddr, 0, 0, 4055 vap->iv_state == IEEE80211_S_RUN ? 4056 mkpeerinfo(&pi, bss) : NULL, 4057 (bss->ni_flags & (IEEE80211_NODE_QOS | IEEE80211_NODE_HT)), 4058 bss->ni_ies.wme_ie != NULL ? 4059 WME(bss->ni_ies.wme_ie)->wme_info : 0); 4060 if (error == 0) 4061 mwl_setglobalkeys(vap); 4062 break; 4063 case IEEE80211_M_HOSTAP: 4064 case IEEE80211_M_MBSS: 4065 error = mwl_hal_newstation(hvap, vap->iv_myaddr, 4066 0, 0, NULL, vap->iv_flags & IEEE80211_F_WME, 0); 4067 if (error == 0) 4068 mwl_setglobalkeys(vap); 4069 break; 4070 default: 4071 error = 0; 4072 break; 4073 } 4074 return error; 4075 #undef WME 4076 } 4077 4078 static int 4079 mwl_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 4080 { 4081 struct mwl_vap *mvp = MWL_VAP(vap); 4082 struct mwl_hal_vap *hvap = mvp->mv_hvap; 4083 struct ieee80211com *ic = vap->iv_ic; 4084 struct ieee80211_node *ni = NULL; 4085 struct mwl_softc *sc = ic->ic_softc; 4086 struct mwl_hal *mh = sc->sc_mh; 4087 enum ieee80211_state ostate = vap->iv_state; 4088 int error; 4089 4090 DPRINTF(sc, MWL_DEBUG_STATE, "%s: %s: %s -> %s\n", 4091 vap->iv_ifp->if_xname, __func__, 4092 ieee80211_state_name[ostate], ieee80211_state_name[nstate]); 4093 4094 callout_stop(&sc->sc_timer); 4095 /* 4096 * Clear current radar detection state. 4097 */ 4098 if (ostate == IEEE80211_S_CAC) { 4099 /* stop quiet mode radar detection */ 4100 mwl_hal_setradardetection(mh, DR_CHK_CHANNEL_AVAILABLE_STOP); 4101 } else if (sc->sc_radarena) { 4102 /* stop in-service radar detection */ 4103 mwl_hal_setradardetection(mh, DR_DFS_DISABLE); 4104 sc->sc_radarena = 0; 4105 } 4106 /* 4107 * Carry out per-state actions before doing net80211 work. 4108 */ 4109 if (nstate == IEEE80211_S_INIT) { 4110 /* NB: only ap+sta vap's have a fw entity */ 4111 if (hvap != NULL) 4112 mwl_hal_stop(hvap); 4113 } else if (nstate == IEEE80211_S_SCAN) { 4114 mwl_hal_start(hvap); 4115 /* NB: this disables beacon frames */ 4116 mwl_hal_setinframode(hvap); 4117 } else if (nstate == IEEE80211_S_AUTH) { 4118 /* 4119 * Must create a sta db entry in case a WEP key needs to 4120 * be plumbed. This entry will be overwritten if we 4121 * associate; otherwise it will be reclaimed on node free. 4122 */ 4123 ni = vap->iv_bss; 4124 MWL_NODE(ni)->mn_hvap = hvap; 4125 (void) mwl_peerstadb(ni, 0, 0, NULL); 4126 } else if (nstate == IEEE80211_S_CSA) { 4127 /* XXX move to below? */ 4128 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 4129 vap->iv_opmode == IEEE80211_M_MBSS) 4130 mwl_startcsa(vap); 4131 } else if (nstate == IEEE80211_S_CAC) { 4132 /* XXX move to below? */ 4133 /* stop ap xmit and enable quiet mode radar detection */ 4134 mwl_hal_setradardetection(mh, DR_CHK_CHANNEL_AVAILABLE_START); 4135 } 4136 4137 /* 4138 * Invoke the parent method to do net80211 work. 4139 */ 4140 error = mvp->mv_newstate(vap, nstate, arg); 4141 4142 /* 4143 * Carry out work that must be done after net80211 runs; 4144 * this work requires up to date state (e.g. iv_bss). 4145 */ 4146 if (error == 0 && nstate == IEEE80211_S_RUN) { 4147 /* NB: collect bss node again, it may have changed */ 4148 ni = vap->iv_bss; 4149 4150 DPRINTF(sc, MWL_DEBUG_STATE, 4151 "%s: %s(RUN): iv_flags 0x%08x bintvl %d bssid %s " 4152 "capinfo 0x%04x chan %d\n", 4153 vap->iv_ifp->if_xname, __func__, vap->iv_flags, 4154 ni->ni_intval, ether_sprintf(ni->ni_bssid), ni->ni_capinfo, 4155 ieee80211_chan2ieee(ic, ic->ic_curchan)); 4156 4157 /* 4158 * Recreate local sta db entry to update WME/HT state. 4159 */ 4160 mwl_localstadb(vap); 4161 switch (vap->iv_opmode) { 4162 case IEEE80211_M_HOSTAP: 4163 case IEEE80211_M_MBSS: 4164 if (ostate == IEEE80211_S_CAC) { 4165 /* enable in-service radar detection */ 4166 mwl_hal_setradardetection(mh, 4167 DR_IN_SERVICE_MONITOR_START); 4168 sc->sc_radarena = 1; 4169 } 4170 /* 4171 * Allocate and setup the beacon frame 4172 * (and related state). 4173 */ 4174 error = mwl_reset_vap(vap, IEEE80211_S_RUN); 4175 if (error != 0) { 4176 DPRINTF(sc, MWL_DEBUG_STATE, 4177 "%s: beacon setup failed, error %d\n", 4178 __func__, error); 4179 goto bad; 4180 } 4181 /* NB: must be after setting up beacon */ 4182 mwl_hal_start(hvap); 4183 break; 4184 case IEEE80211_M_STA: 4185 DPRINTF(sc, MWL_DEBUG_STATE, "%s: %s: aid 0x%x\n", 4186 vap->iv_ifp->if_xname, __func__, ni->ni_associd); 4187 /* 4188 * Set state now that we're associated. 4189 */ 4190 mwl_hal_setassocid(hvap, ni->ni_bssid, ni->ni_associd); 4191 mwl_setrates(vap); 4192 mwl_hal_setrtsthreshold(hvap, vap->iv_rtsthreshold); 4193 if ((vap->iv_flags & IEEE80211_F_DWDS) && 4194 sc->sc_ndwdsvaps++ == 0) 4195 mwl_hal_setdwds(mh, 1); 4196 break; 4197 case IEEE80211_M_WDS: 4198 DPRINTF(sc, MWL_DEBUG_STATE, "%s: %s: bssid %s\n", 4199 vap->iv_ifp->if_xname, __func__, 4200 ether_sprintf(ni->ni_bssid)); 4201 mwl_seteapolformat(vap); 4202 break; 4203 default: 4204 break; 4205 } 4206 /* 4207 * Set CS mode according to operating channel; 4208 * this mostly an optimization for 5GHz. 4209 * 4210 * NB: must follow mwl_hal_start which resets csmode 4211 */ 4212 if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 4213 mwl_hal_setcsmode(mh, CSMODE_AGGRESSIVE); 4214 else 4215 mwl_hal_setcsmode(mh, CSMODE_AUTO_ENA); 4216 /* 4217 * Start timer to prod firmware. 4218 */ 4219 if (sc->sc_ageinterval != 0) 4220 callout_reset(&sc->sc_timer, sc->sc_ageinterval*hz, 4221 mwl_agestations, sc); 4222 } else if (nstate == IEEE80211_S_SLEEP) { 4223 /* XXX set chip in power save */ 4224 } else if ((vap->iv_flags & IEEE80211_F_DWDS) && 4225 --sc->sc_ndwdsvaps == 0) 4226 mwl_hal_setdwds(mh, 0); 4227 bad: 4228 return error; 4229 } 4230 4231 /* 4232 * Manage station id's; these are separate from AID's 4233 * as AID's may have values out of the range of possible 4234 * station id's acceptable to the firmware. 4235 */ 4236 static int 4237 allocstaid(struct mwl_softc *sc, int aid) 4238 { 4239 int staid; 4240 4241 if (!(0 < aid && aid < MWL_MAXSTAID) || isset(sc->sc_staid, aid)) { 4242 /* NB: don't use 0 */ 4243 for (staid = 1; staid < MWL_MAXSTAID; staid++) 4244 if (isclr(sc->sc_staid, staid)) 4245 break; 4246 } else 4247 staid = aid; 4248 setbit(sc->sc_staid, staid); 4249 return staid; 4250 } 4251 4252 static void 4253 delstaid(struct mwl_softc *sc, int staid) 4254 { 4255 clrbit(sc->sc_staid, staid); 4256 } 4257 4258 /* 4259 * Setup driver-specific state for a newly associated node. 4260 * Note that we're called also on a re-associate, the isnew 4261 * param tells us if this is the first time or not. 4262 */ 4263 static void 4264 mwl_newassoc(struct ieee80211_node *ni, int isnew) 4265 { 4266 struct ieee80211vap *vap = ni->ni_vap; 4267 struct mwl_softc *sc = vap->iv_ic->ic_softc; 4268 struct mwl_node *mn = MWL_NODE(ni); 4269 MWL_HAL_PEERINFO pi; 4270 uint16_t aid; 4271 int error; 4272 4273 aid = IEEE80211_AID(ni->ni_associd); 4274 if (isnew) { 4275 mn->mn_staid = allocstaid(sc, aid); 4276 mn->mn_hvap = MWL_VAP(vap)->mv_hvap; 4277 } else { 4278 mn = MWL_NODE(ni); 4279 /* XXX reset BA stream? */ 4280 } 4281 DPRINTF(sc, MWL_DEBUG_NODE, "%s: mac %s isnew %d aid %d staid %d\n", 4282 __func__, ether_sprintf(ni->ni_macaddr), isnew, aid, mn->mn_staid); 4283 error = mwl_peerstadb(ni, aid, mn->mn_staid, mkpeerinfo(&pi, ni)); 4284 if (error != 0) { 4285 DPRINTF(sc, MWL_DEBUG_NODE, 4286 "%s: error %d creating sta db entry\n", 4287 __func__, error); 4288 /* XXX how to deal with error? */ 4289 } 4290 } 4291 4292 /* 4293 * Periodically poke the firmware to age out station state 4294 * (power save queues, pending tx aggregates). 4295 */ 4296 static void 4297 mwl_agestations(void *arg) 4298 { 4299 struct mwl_softc *sc = arg; 4300 4301 mwl_hal_setkeepalive(sc->sc_mh); 4302 if (sc->sc_ageinterval != 0) /* NB: catch dynamic changes */ 4303 callout_schedule(&sc->sc_timer, sc->sc_ageinterval*hz); 4304 } 4305 4306 static const struct mwl_hal_channel * 4307 findhalchannel(const MWL_HAL_CHANNELINFO *ci, int ieee) 4308 { 4309 int i; 4310 4311 for (i = 0; i < ci->nchannels; i++) { 4312 const struct mwl_hal_channel *hc = &ci->channels[i]; 4313 if (hc->ieee == ieee) 4314 return hc; 4315 } 4316 return NULL; 4317 } 4318 4319 static int 4320 mwl_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd, 4321 int nchan, struct ieee80211_channel chans[]) 4322 { 4323 struct mwl_softc *sc = ic->ic_softc; 4324 struct mwl_hal *mh = sc->sc_mh; 4325 const MWL_HAL_CHANNELINFO *ci; 4326 int i; 4327 4328 for (i = 0; i < nchan; i++) { 4329 struct ieee80211_channel *c = &chans[i]; 4330 const struct mwl_hal_channel *hc; 4331 4332 if (IEEE80211_IS_CHAN_2GHZ(c)) { 4333 mwl_hal_getchannelinfo(mh, MWL_FREQ_BAND_2DOT4GHZ, 4334 IEEE80211_IS_CHAN_HT40(c) ? 4335 MWL_CH_40_MHz_WIDTH : MWL_CH_20_MHz_WIDTH, &ci); 4336 } else if (IEEE80211_IS_CHAN_5GHZ(c)) { 4337 mwl_hal_getchannelinfo(mh, MWL_FREQ_BAND_5GHZ, 4338 IEEE80211_IS_CHAN_HT40(c) ? 4339 MWL_CH_40_MHz_WIDTH : MWL_CH_20_MHz_WIDTH, &ci); 4340 } else { 4341 device_printf(sc->sc_dev, 4342 "%s: channel %u freq %u/0x%x not 2.4/5GHz\n", 4343 __func__, c->ic_ieee, c->ic_freq, c->ic_flags); 4344 return EINVAL; 4345 } 4346 /* 4347 * Verify channel has cal data and cap tx power. 4348 */ 4349 hc = findhalchannel(ci, c->ic_ieee); 4350 if (hc != NULL) { 4351 if (c->ic_maxpower > 2*hc->maxTxPow) 4352 c->ic_maxpower = 2*hc->maxTxPow; 4353 goto next; 4354 } 4355 if (IEEE80211_IS_CHAN_HT40(c)) { 4356 /* 4357 * Look for the extension channel since the 4358 * hal table only has the primary channel. 4359 */ 4360 hc = findhalchannel(ci, c->ic_extieee); 4361 if (hc != NULL) { 4362 if (c->ic_maxpower > 2*hc->maxTxPow) 4363 c->ic_maxpower = 2*hc->maxTxPow; 4364 goto next; 4365 } 4366 } 4367 device_printf(sc->sc_dev, 4368 "%s: no cal data for channel %u ext %u freq %u/0x%x\n", 4369 __func__, c->ic_ieee, c->ic_extieee, 4370 c->ic_freq, c->ic_flags); 4371 return EINVAL; 4372 next: 4373 ; 4374 } 4375 return 0; 4376 } 4377 4378 #define IEEE80211_CHAN_HTG (IEEE80211_CHAN_HT|IEEE80211_CHAN_G) 4379 #define IEEE80211_CHAN_HTA (IEEE80211_CHAN_HT|IEEE80211_CHAN_A) 4380 4381 static void 4382 addht40channels(struct ieee80211_channel chans[], int maxchans, int *nchans, 4383 const MWL_HAL_CHANNELINFO *ci, int flags) 4384 { 4385 int i, error; 4386 4387 for (i = 0; i < ci->nchannels; i++) { 4388 const struct mwl_hal_channel *hc = &ci->channels[i]; 4389 4390 error = ieee80211_add_channel_ht40(chans, maxchans, nchans, 4391 hc->ieee, hc->maxTxPow, flags); 4392 if (error != 0 && error != ENOENT) 4393 break; 4394 } 4395 } 4396 4397 static void 4398 addchannels(struct ieee80211_channel chans[], int maxchans, int *nchans, 4399 const MWL_HAL_CHANNELINFO *ci, const uint8_t bands[]) 4400 { 4401 int i, error; 4402 4403 error = 0; 4404 for (i = 0; i < ci->nchannels && error == 0; i++) { 4405 const struct mwl_hal_channel *hc = &ci->channels[i]; 4406 4407 error = ieee80211_add_channel(chans, maxchans, nchans, 4408 hc->ieee, hc->freq, hc->maxTxPow, 0, bands); 4409 } 4410 } 4411 4412 static void 4413 getchannels(struct mwl_softc *sc, int maxchans, int *nchans, 4414 struct ieee80211_channel chans[]) 4415 { 4416 const MWL_HAL_CHANNELINFO *ci; 4417 uint8_t bands[IEEE80211_MODE_BYTES]; 4418 4419 /* 4420 * Use the channel info from the hal to craft the 4421 * channel list. Note that we pass back an unsorted 4422 * list; the caller is required to sort it for us 4423 * (if desired). 4424 */ 4425 *nchans = 0; 4426 if (mwl_hal_getchannelinfo(sc->sc_mh, 4427 MWL_FREQ_BAND_2DOT4GHZ, MWL_CH_20_MHz_WIDTH, &ci) == 0) { 4428 memset(bands, 0, sizeof(bands)); 4429 setbit(bands, IEEE80211_MODE_11B); 4430 setbit(bands, IEEE80211_MODE_11G); 4431 setbit(bands, IEEE80211_MODE_11NG); 4432 addchannels(chans, maxchans, nchans, ci, bands); 4433 } 4434 if (mwl_hal_getchannelinfo(sc->sc_mh, 4435 MWL_FREQ_BAND_5GHZ, MWL_CH_20_MHz_WIDTH, &ci) == 0) { 4436 memset(bands, 0, sizeof(bands)); 4437 setbit(bands, IEEE80211_MODE_11A); 4438 setbit(bands, IEEE80211_MODE_11NA); 4439 addchannels(chans, maxchans, nchans, ci, bands); 4440 } 4441 if (mwl_hal_getchannelinfo(sc->sc_mh, 4442 MWL_FREQ_BAND_2DOT4GHZ, MWL_CH_40_MHz_WIDTH, &ci) == 0) 4443 addht40channels(chans, maxchans, nchans, ci, IEEE80211_CHAN_HTG); 4444 if (mwl_hal_getchannelinfo(sc->sc_mh, 4445 MWL_FREQ_BAND_5GHZ, MWL_CH_40_MHz_WIDTH, &ci) == 0) 4446 addht40channels(chans, maxchans, nchans, ci, IEEE80211_CHAN_HTA); 4447 } 4448 4449 static void 4450 mwl_getradiocaps(struct ieee80211com *ic, 4451 int maxchans, int *nchans, struct ieee80211_channel chans[]) 4452 { 4453 struct mwl_softc *sc = ic->ic_softc; 4454 4455 getchannels(sc, maxchans, nchans, chans); 4456 } 4457 4458 static int 4459 mwl_getchannels(struct mwl_softc *sc) 4460 { 4461 struct ieee80211com *ic = &sc->sc_ic; 4462 4463 /* 4464 * Use the channel info from the hal to craft the 4465 * channel list for net80211. Note that we pass up 4466 * an unsorted list; net80211 will sort it for us. 4467 */ 4468 memset(ic->ic_channels, 0, sizeof(ic->ic_channels)); 4469 ic->ic_nchans = 0; 4470 getchannels(sc, IEEE80211_CHAN_MAX, &ic->ic_nchans, ic->ic_channels); 4471 4472 ic->ic_regdomain.regdomain = SKU_DEBUG; 4473 ic->ic_regdomain.country = CTRY_DEFAULT; 4474 ic->ic_regdomain.location = 'I'; 4475 ic->ic_regdomain.isocc[0] = ' '; /* XXX? */ 4476 ic->ic_regdomain.isocc[1] = ' '; 4477 return (ic->ic_nchans == 0 ? EIO : 0); 4478 } 4479 #undef IEEE80211_CHAN_HTA 4480 #undef IEEE80211_CHAN_HTG 4481 4482 #ifdef MWL_DEBUG 4483 static void 4484 mwl_printrxbuf(const struct mwl_rxbuf *bf, u_int ix) 4485 { 4486 const struct mwl_rxdesc *ds = bf->bf_desc; 4487 uint32_t status = le32toh(ds->Status); 4488 4489 printf("R[%2u] (DS.V:%p DS.P:0x%jx) NEXT:%08x DATA:%08x RC:%02x%s\n" 4490 " STAT:%02x LEN:%04x RSSI:%02x CHAN:%02x RATE:%02x QOS:%04x HT:%04x\n", 4491 ix, ds, (uintmax_t)bf->bf_daddr, le32toh(ds->pPhysNext), 4492 le32toh(ds->pPhysBuffData), ds->RxControl, 4493 ds->RxControl != EAGLE_RXD_CTRL_DRIVER_OWN ? 4494 "" : (status & EAGLE_RXD_STATUS_OK) ? " *" : " !", 4495 ds->Status, le16toh(ds->PktLen), ds->RSSI, ds->Channel, 4496 ds->Rate, le16toh(ds->QosCtrl), le16toh(ds->HtSig2)); 4497 } 4498 4499 static void 4500 mwl_printtxbuf(const struct mwl_txbuf *bf, u_int qnum, u_int ix) 4501 { 4502 const struct mwl_txdesc *ds = bf->bf_desc; 4503 uint32_t status = le32toh(ds->Status); 4504 4505 printf("Q%u[%3u]", qnum, ix); 4506 printf(" (DS.V:%p DS.P:0x%jx)\n", ds, (uintmax_t)bf->bf_daddr); 4507 printf(" NEXT:%08x DATA:%08x LEN:%04x STAT:%08x%s\n", 4508 le32toh(ds->pPhysNext), 4509 le32toh(ds->PktPtr), le16toh(ds->PktLen), status, 4510 status & EAGLE_TXD_STATUS_USED ? 4511 "" : (status & 3) != 0 ? " *" : " !"); 4512 printf(" RATE:%02x PRI:%x QOS:%04x SAP:%08x FORMAT:%04x\n", 4513 ds->DataRate, ds->TxPriority, le16toh(ds->QosCtrl), 4514 le32toh(ds->SapPktInfo), le16toh(ds->Format)); 4515 #if MWL_TXDESC > 1 4516 printf(" MULTIFRAMES:%u LEN:%04x %04x %04x %04x %04x %04x\n" 4517 , le32toh(ds->multiframes) 4518 , le16toh(ds->PktLenArray[0]), le16toh(ds->PktLenArray[1]) 4519 , le16toh(ds->PktLenArray[2]), le16toh(ds->PktLenArray[3]) 4520 , le16toh(ds->PktLenArray[4]), le16toh(ds->PktLenArray[5]) 4521 ); 4522 printf(" DATA:%08x %08x %08x %08x %08x %08x\n" 4523 , le32toh(ds->PktPtrArray[0]), le32toh(ds->PktPtrArray[1]) 4524 , le32toh(ds->PktPtrArray[2]), le32toh(ds->PktPtrArray[3]) 4525 , le32toh(ds->PktPtrArray[4]), le32toh(ds->PktPtrArray[5]) 4526 ); 4527 #endif 4528 #if 0 4529 { const uint8_t *cp = (const uint8_t *) ds; 4530 int i; 4531 for (i = 0; i < sizeof(struct mwl_txdesc); i++) { 4532 printf("%02x ", cp[i]); 4533 if (((i+1) % 16) == 0) 4534 printf("\n"); 4535 } 4536 printf("\n"); 4537 } 4538 #endif 4539 } 4540 #endif /* MWL_DEBUG */ 4541 4542 #if 0 4543 static void 4544 mwl_txq_dump(struct mwl_txq *txq) 4545 { 4546 struct mwl_txbuf *bf; 4547 int i = 0; 4548 4549 MWL_TXQ_LOCK(txq); 4550 STAILQ_FOREACH(bf, &txq->active, bf_list) { 4551 struct mwl_txdesc *ds = bf->bf_desc; 4552 MWL_TXDESC_SYNC(txq, ds, 4553 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 4554 #ifdef MWL_DEBUG 4555 mwl_printtxbuf(bf, txq->qnum, i); 4556 #endif 4557 i++; 4558 } 4559 MWL_TXQ_UNLOCK(txq); 4560 } 4561 #endif 4562 4563 static void 4564 mwl_watchdog(void *arg) 4565 { 4566 struct mwl_softc *sc = arg; 4567 4568 callout_reset(&sc->sc_watchdog, hz, mwl_watchdog, sc); 4569 if (sc->sc_tx_timer == 0 || --sc->sc_tx_timer > 0) 4570 return; 4571 4572 if (sc->sc_running && !sc->sc_invalid) { 4573 if (mwl_hal_setkeepalive(sc->sc_mh)) 4574 device_printf(sc->sc_dev, 4575 "transmit timeout (firmware hung?)\n"); 4576 else 4577 device_printf(sc->sc_dev, 4578 "transmit timeout\n"); 4579 #if 0 4580 mwl_reset(sc); 4581 mwl_txq_dump(&sc->sc_txq[0]);/*XXX*/ 4582 #endif 4583 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 4584 sc->sc_stats.mst_watchdog++; 4585 } 4586 } 4587 4588 #ifdef MWL_DIAGAPI 4589 /* 4590 * Diagnostic interface to the HAL. This is used by various 4591 * tools to do things like retrieve register contents for 4592 * debugging. The mechanism is intentionally opaque so that 4593 * it can change frequently w/o concern for compatibility. 4594 */ 4595 static int 4596 mwl_ioctl_diag(struct mwl_softc *sc, struct mwl_diag *md) 4597 { 4598 struct mwl_hal *mh = sc->sc_mh; 4599 u_int id = md->md_id & MWL_DIAG_ID; 4600 void *indata = NULL; 4601 void *outdata = NULL; 4602 u_int32_t insize = md->md_in_size; 4603 u_int32_t outsize = md->md_out_size; 4604 int error = 0; 4605 4606 if (md->md_id & MWL_DIAG_IN) { 4607 /* 4608 * Copy in data. 4609 */ 4610 indata = malloc(insize, M_TEMP, M_NOWAIT); 4611 if (indata == NULL) { 4612 error = ENOMEM; 4613 goto bad; 4614 } 4615 error = copyin(md->md_in_data, indata, insize); 4616 if (error) 4617 goto bad; 4618 } 4619 if (md->md_id & MWL_DIAG_DYN) { 4620 /* 4621 * Allocate a buffer for the results (otherwise the HAL 4622 * returns a pointer to a buffer where we can read the 4623 * results). Note that we depend on the HAL leaving this 4624 * pointer for us to use below in reclaiming the buffer; 4625 * may want to be more defensive. 4626 */ 4627 outdata = malloc(outsize, M_TEMP, M_NOWAIT); 4628 if (outdata == NULL) { 4629 error = ENOMEM; 4630 goto bad; 4631 } 4632 } 4633 if (mwl_hal_getdiagstate(mh, id, indata, insize, &outdata, &outsize)) { 4634 if (outsize < md->md_out_size) 4635 md->md_out_size = outsize; 4636 if (outdata != NULL) 4637 error = copyout(outdata, md->md_out_data, 4638 md->md_out_size); 4639 } else { 4640 error = EINVAL; 4641 } 4642 bad: 4643 if ((md->md_id & MWL_DIAG_IN) && indata != NULL) 4644 free(indata, M_TEMP); 4645 if ((md->md_id & MWL_DIAG_DYN) && outdata != NULL) 4646 free(outdata, M_TEMP); 4647 return error; 4648 } 4649 4650 static int 4651 mwl_ioctl_reset(struct mwl_softc *sc, struct mwl_diag *md) 4652 { 4653 struct mwl_hal *mh = sc->sc_mh; 4654 int error; 4655 4656 MWL_LOCK_ASSERT(sc); 4657 4658 if (md->md_id == 0 && mwl_hal_fwload(mh, NULL) != 0) { 4659 device_printf(sc->sc_dev, "unable to load firmware\n"); 4660 return EIO; 4661 } 4662 if (mwl_hal_gethwspecs(mh, &sc->sc_hwspecs) != 0) { 4663 device_printf(sc->sc_dev, "unable to fetch h/w specs\n"); 4664 return EIO; 4665 } 4666 error = mwl_setupdma(sc); 4667 if (error != 0) { 4668 /* NB: mwl_setupdma prints a msg */ 4669 return error; 4670 } 4671 /* 4672 * Reset tx/rx data structures; after reload we must 4673 * re-start the driver's notion of the next xmit/recv. 4674 */ 4675 mwl_draintxq(sc); /* clear pending frames */ 4676 mwl_resettxq(sc); /* rebuild tx q lists */ 4677 sc->sc_rxnext = NULL; /* force rx to start at the list head */ 4678 return 0; 4679 } 4680 #endif /* MWL_DIAGAPI */ 4681 4682 static void 4683 mwl_parent(struct ieee80211com *ic) 4684 { 4685 struct mwl_softc *sc = ic->ic_softc; 4686 int startall = 0; 4687 4688 MWL_LOCK(sc); 4689 if (ic->ic_nrunning > 0) { 4690 if (sc->sc_running) { 4691 /* 4692 * To avoid rescanning another access point, 4693 * do not call mwl_init() here. Instead, 4694 * only reflect promisc mode settings. 4695 */ 4696 mwl_mode_init(sc); 4697 } else { 4698 /* 4699 * Beware of being called during attach/detach 4700 * to reset promiscuous mode. In that case we 4701 * will still be marked UP but not RUNNING. 4702 * However trying to re-init the interface 4703 * is the wrong thing to do as we've already 4704 * torn down much of our state. There's 4705 * probably a better way to deal with this. 4706 */ 4707 if (!sc->sc_invalid) { 4708 mwl_init(sc); /* XXX lose error */ 4709 startall = 1; 4710 } 4711 } 4712 } else 4713 mwl_stop(sc); 4714 MWL_UNLOCK(sc); 4715 if (startall) 4716 ieee80211_start_all(ic); 4717 } 4718 4719 static int 4720 mwl_ioctl(struct ieee80211com *ic, u_long cmd, void *data) 4721 { 4722 struct mwl_softc *sc = ic->ic_softc; 4723 struct ifreq *ifr = data; 4724 int error = 0; 4725 4726 switch (cmd) { 4727 case SIOCGMVSTATS: 4728 mwl_hal_gethwstats(sc->sc_mh, &sc->sc_stats.hw_stats); 4729 #if 0 4730 /* NB: embed these numbers to get a consistent view */ 4731 sc->sc_stats.mst_tx_packets = 4732 ifp->if_get_counter(ifp, IFCOUNTER_OPACKETS); 4733 sc->sc_stats.mst_rx_packets = 4734 ifp->if_get_counter(ifp, IFCOUNTER_IPACKETS); 4735 #endif 4736 /* 4737 * NB: Drop the softc lock in case of a page fault; 4738 * we'll accept any potential inconsisentcy in the 4739 * statistics. The alternative is to copy the data 4740 * to a local structure. 4741 */ 4742 return (copyout(&sc->sc_stats, ifr_data_get_ptr(ifr), 4743 sizeof (sc->sc_stats))); 4744 #ifdef MWL_DIAGAPI 4745 case SIOCGMVDIAG: 4746 /* XXX check privs */ 4747 return mwl_ioctl_diag(sc, (struct mwl_diag *) ifr); 4748 case SIOCGMVRESET: 4749 /* XXX check privs */ 4750 MWL_LOCK(sc); 4751 error = mwl_ioctl_reset(sc,(struct mwl_diag *) ifr); 4752 MWL_UNLOCK(sc); 4753 break; 4754 #endif /* MWL_DIAGAPI */ 4755 default: 4756 error = ENOTTY; 4757 break; 4758 } 4759 return (error); 4760 } 4761 4762 #ifdef MWL_DEBUG 4763 static int 4764 mwl_sysctl_debug(SYSCTL_HANDLER_ARGS) 4765 { 4766 struct mwl_softc *sc = arg1; 4767 int debug, error; 4768 4769 debug = sc->sc_debug | (mwl_hal_getdebug(sc->sc_mh) << 24); 4770 error = sysctl_handle_int(oidp, &debug, 0, req); 4771 if (error || !req->newptr) 4772 return error; 4773 mwl_hal_setdebug(sc->sc_mh, debug >> 24); 4774 sc->sc_debug = debug & 0x00ffffff; 4775 return 0; 4776 } 4777 #endif /* MWL_DEBUG */ 4778 4779 static void 4780 mwl_sysctlattach(struct mwl_softc *sc) 4781 { 4782 #ifdef MWL_DEBUG 4783 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 4784 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 4785 4786 sc->sc_debug = mwl_debug; 4787 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "debug", 4788 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, sc, 0, 4789 mwl_sysctl_debug, "I", "control debugging printfs"); 4790 #endif 4791 } 4792 4793 /* 4794 * Announce various information on device/driver attach. 4795 */ 4796 static void 4797 mwl_announce(struct mwl_softc *sc) 4798 { 4799 4800 device_printf(sc->sc_dev, "Rev A%d hardware, v%d.%d.%d.%d firmware (regioncode %d)\n", 4801 sc->sc_hwspecs.hwVersion, 4802 (sc->sc_hwspecs.fwReleaseNumber>>24) & 0xff, 4803 (sc->sc_hwspecs.fwReleaseNumber>>16) & 0xff, 4804 (sc->sc_hwspecs.fwReleaseNumber>>8) & 0xff, 4805 (sc->sc_hwspecs.fwReleaseNumber>>0) & 0xff, 4806 sc->sc_hwspecs.regionCode); 4807 sc->sc_fwrelease = sc->sc_hwspecs.fwReleaseNumber; 4808 4809 if (bootverbose) { 4810 int i; 4811 for (i = 0; i <= WME_AC_VO; i++) { 4812 struct mwl_txq *txq = sc->sc_ac2q[i]; 4813 device_printf(sc->sc_dev, "Use hw queue %u for %s traffic\n", 4814 txq->qnum, ieee80211_wme_acnames[i]); 4815 } 4816 } 4817 if (bootverbose || mwl_rxdesc != MWL_RXDESC) 4818 device_printf(sc->sc_dev, "using %u rx descriptors\n", mwl_rxdesc); 4819 if (bootverbose || mwl_rxbuf != MWL_RXBUF) 4820 device_printf(sc->sc_dev, "using %u rx buffers\n", mwl_rxbuf); 4821 if (bootverbose || mwl_txbuf != MWL_TXBUF) 4822 device_printf(sc->sc_dev, "using %u tx buffers\n", mwl_txbuf); 4823 if (bootverbose && mwl_hal_ismbsscapable(sc->sc_mh)) 4824 device_printf(sc->sc_dev, "multi-bss support\n"); 4825 #ifdef MWL_TX_NODROP 4826 if (bootverbose) 4827 device_printf(sc->sc_dev, "no tx drop\n"); 4828 #endif 4829 }
Cache object: eda8fe5a9fb9dd1d34408ebaaa028e11
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]