1 /*- 2 * Copyright (c) 2007-2009 Sam Leffler, Errno Consulting 3 * Copyright (c) 2007-2008 Marvell Semiconductor, Inc. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer, 11 * without modification. 12 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 13 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 14 * redistribution must be conditioned upon including a substantially 15 * similar Disclaimer requirement for further binary redistribution. 16 * 17 * NO WARRANTY 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 21 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 22 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 23 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 26 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGES. 29 */ 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 /* 35 * Driver for the Marvell 88W8363 Wireless LAN controller. 36 */ 37 38 #include "opt_inet.h" 39 #include "opt_mwl.h" 40 #include "opt_wlan.h" 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/sysctl.h> 45 #include <sys/mbuf.h> 46 #include <sys/malloc.h> 47 #include <sys/lock.h> 48 #include <sys/mutex.h> 49 #include <sys/kernel.h> 50 #include <sys/socket.h> 51 #include <sys/sockio.h> 52 #include <sys/errno.h> 53 #include <sys/callout.h> 54 #include <sys/bus.h> 55 #include <sys/endian.h> 56 #include <sys/kthread.h> 57 #include <sys/taskqueue.h> 58 59 #include <machine/bus.h> 60 61 #include <net/if.h> 62 #include <net/if_var.h> 63 #include <net/if_dl.h> 64 #include <net/if_media.h> 65 #include <net/if_types.h> 66 #include <net/if_arp.h> 67 #include <net/ethernet.h> 68 #include <net/if_llc.h> 69 70 #include <net/bpf.h> 71 72 #include <net80211/ieee80211_var.h> 73 #include <net80211/ieee80211_input.h> 74 #include <net80211/ieee80211_regdomain.h> 75 76 #ifdef INET 77 #include <netinet/in.h> 78 #include <netinet/if_ether.h> 79 #endif /* INET */ 80 81 #include <dev/mwl/if_mwlvar.h> 82 #include <dev/mwl/mwldiag.h> 83 84 /* idiomatic shorthands: MS = mask+shift, SM = shift+mask */ 85 #define MS(v,x) (((v) & x) >> x##_S) 86 #define SM(v,x) (((v) << x##_S) & x) 87 88 static struct ieee80211vap *mwl_vap_create(struct ieee80211com *, 89 const char [IFNAMSIZ], int, enum ieee80211_opmode, int, 90 const uint8_t [IEEE80211_ADDR_LEN], 91 const uint8_t [IEEE80211_ADDR_LEN]); 92 static void mwl_vap_delete(struct ieee80211vap *); 93 static int mwl_setupdma(struct mwl_softc *); 94 static int mwl_hal_reset(struct mwl_softc *sc); 95 static int mwl_init(struct mwl_softc *); 96 static void mwl_parent(struct ieee80211com *); 97 static int mwl_reset(struct ieee80211vap *, u_long); 98 static void mwl_stop(struct mwl_softc *); 99 static void mwl_start(struct mwl_softc *); 100 static int mwl_transmit(struct ieee80211com *, struct mbuf *); 101 static int mwl_raw_xmit(struct ieee80211_node *, struct mbuf *, 102 const struct ieee80211_bpf_params *); 103 static int mwl_media_change(struct ifnet *); 104 static void mwl_watchdog(void *); 105 static int mwl_ioctl(struct ieee80211com *, u_long, void *); 106 static void mwl_radar_proc(void *, int); 107 static void mwl_chanswitch_proc(void *, int); 108 static void mwl_bawatchdog_proc(void *, int); 109 static int mwl_key_alloc(struct ieee80211vap *, 110 struct ieee80211_key *, 111 ieee80211_keyix *, ieee80211_keyix *); 112 static int mwl_key_delete(struct ieee80211vap *, 113 const struct ieee80211_key *); 114 static int mwl_key_set(struct ieee80211vap *, 115 const struct ieee80211_key *); 116 static int _mwl_key_set(struct ieee80211vap *, 117 const struct ieee80211_key *, 118 const uint8_t mac[IEEE80211_ADDR_LEN]); 119 static int mwl_mode_init(struct mwl_softc *); 120 static void mwl_update_mcast(struct ieee80211com *); 121 static void mwl_update_promisc(struct ieee80211com *); 122 static void mwl_updateslot(struct ieee80211com *); 123 static int mwl_beacon_setup(struct ieee80211vap *); 124 static void mwl_beacon_update(struct ieee80211vap *, int); 125 #ifdef MWL_HOST_PS_SUPPORT 126 static void mwl_update_ps(struct ieee80211vap *, int); 127 static int mwl_set_tim(struct ieee80211_node *, int); 128 #endif 129 static int mwl_dma_setup(struct mwl_softc *); 130 static void mwl_dma_cleanup(struct mwl_softc *); 131 static struct ieee80211_node *mwl_node_alloc(struct ieee80211vap *, 132 const uint8_t [IEEE80211_ADDR_LEN]); 133 static void mwl_node_cleanup(struct ieee80211_node *); 134 static void mwl_node_drain(struct ieee80211_node *); 135 static void mwl_node_getsignal(const struct ieee80211_node *, 136 int8_t *, int8_t *); 137 static void mwl_node_getmimoinfo(const struct ieee80211_node *, 138 struct ieee80211_mimo_info *); 139 static int mwl_rxbuf_init(struct mwl_softc *, struct mwl_rxbuf *); 140 static void mwl_rx_proc(void *, int); 141 static void mwl_txq_init(struct mwl_softc *sc, struct mwl_txq *, int); 142 static int mwl_tx_setup(struct mwl_softc *, int, int); 143 static int mwl_wme_update(struct ieee80211com *); 144 static void mwl_tx_cleanupq(struct mwl_softc *, struct mwl_txq *); 145 static void mwl_tx_cleanup(struct mwl_softc *); 146 static uint16_t mwl_calcformat(uint8_t rate, const struct ieee80211_node *); 147 static int mwl_tx_start(struct mwl_softc *, struct ieee80211_node *, 148 struct mwl_txbuf *, struct mbuf *); 149 static void mwl_tx_proc(void *, int); 150 static int mwl_chan_set(struct mwl_softc *, struct ieee80211_channel *); 151 static void mwl_draintxq(struct mwl_softc *); 152 static void mwl_cleartxq(struct mwl_softc *, struct ieee80211vap *); 153 static int mwl_recv_action(struct ieee80211_node *, 154 const struct ieee80211_frame *, 155 const uint8_t *, const uint8_t *); 156 static int mwl_addba_request(struct ieee80211_node *, 157 struct ieee80211_tx_ampdu *, int dialogtoken, 158 int baparamset, int batimeout); 159 static int mwl_addba_response(struct ieee80211_node *, 160 struct ieee80211_tx_ampdu *, int status, 161 int baparamset, int batimeout); 162 static void mwl_addba_stop(struct ieee80211_node *, 163 struct ieee80211_tx_ampdu *); 164 static int mwl_startrecv(struct mwl_softc *); 165 static MWL_HAL_APMODE mwl_getapmode(const struct ieee80211vap *, 166 struct ieee80211_channel *); 167 static int mwl_setapmode(struct ieee80211vap *, struct ieee80211_channel*); 168 static void mwl_scan_start(struct ieee80211com *); 169 static void mwl_scan_end(struct ieee80211com *); 170 static void mwl_set_channel(struct ieee80211com *); 171 static int mwl_peerstadb(struct ieee80211_node *, 172 int aid, int staid, MWL_HAL_PEERINFO *pi); 173 static int mwl_localstadb(struct ieee80211vap *); 174 static int mwl_newstate(struct ieee80211vap *, enum ieee80211_state, int); 175 static int allocstaid(struct mwl_softc *sc, int aid); 176 static void delstaid(struct mwl_softc *sc, int staid); 177 static void mwl_newassoc(struct ieee80211_node *, int); 178 static void mwl_agestations(void *); 179 static int mwl_setregdomain(struct ieee80211com *, 180 struct ieee80211_regdomain *, int, 181 struct ieee80211_channel []); 182 static void mwl_getradiocaps(struct ieee80211com *, int, int *, 183 struct ieee80211_channel []); 184 static int mwl_getchannels(struct mwl_softc *); 185 186 static void mwl_sysctlattach(struct mwl_softc *); 187 static void mwl_announce(struct mwl_softc *); 188 189 SYSCTL_NODE(_hw, OID_AUTO, mwl, CTLFLAG_RD, 0, "Marvell driver parameters"); 190 191 static int mwl_rxdesc = MWL_RXDESC; /* # rx desc's to allocate */ 192 SYSCTL_INT(_hw_mwl, OID_AUTO, rxdesc, CTLFLAG_RW, &mwl_rxdesc, 193 0, "rx descriptors allocated"); 194 static int mwl_rxbuf = MWL_RXBUF; /* # rx buffers to allocate */ 195 SYSCTL_INT(_hw_mwl, OID_AUTO, rxbuf, CTLFLAG_RWTUN, &mwl_rxbuf, 196 0, "rx buffers allocated"); 197 static int mwl_txbuf = MWL_TXBUF; /* # tx buffers to allocate */ 198 SYSCTL_INT(_hw_mwl, OID_AUTO, txbuf, CTLFLAG_RWTUN, &mwl_txbuf, 199 0, "tx buffers allocated"); 200 static int mwl_txcoalesce = 8; /* # tx packets to q before poking f/w*/ 201 SYSCTL_INT(_hw_mwl, OID_AUTO, txcoalesce, CTLFLAG_RWTUN, &mwl_txcoalesce, 202 0, "tx buffers to send at once"); 203 static int mwl_rxquota = MWL_RXBUF; /* # max buffers to process */ 204 SYSCTL_INT(_hw_mwl, OID_AUTO, rxquota, CTLFLAG_RWTUN, &mwl_rxquota, 205 0, "max rx buffers to process per interrupt"); 206 static int mwl_rxdmalow = 3; /* # min buffers for wakeup */ 207 SYSCTL_INT(_hw_mwl, OID_AUTO, rxdmalow, CTLFLAG_RWTUN, &mwl_rxdmalow, 208 0, "min free rx buffers before restarting traffic"); 209 210 #ifdef MWL_DEBUG 211 static int mwl_debug = 0; 212 SYSCTL_INT(_hw_mwl, OID_AUTO, debug, CTLFLAG_RWTUN, &mwl_debug, 213 0, "control debugging printfs"); 214 enum { 215 MWL_DEBUG_XMIT = 0x00000001, /* basic xmit operation */ 216 MWL_DEBUG_XMIT_DESC = 0x00000002, /* xmit descriptors */ 217 MWL_DEBUG_RECV = 0x00000004, /* basic recv operation */ 218 MWL_DEBUG_RECV_DESC = 0x00000008, /* recv descriptors */ 219 MWL_DEBUG_RESET = 0x00000010, /* reset processing */ 220 MWL_DEBUG_BEACON = 0x00000020, /* beacon handling */ 221 MWL_DEBUG_INTR = 0x00000040, /* ISR */ 222 MWL_DEBUG_TX_PROC = 0x00000080, /* tx ISR proc */ 223 MWL_DEBUG_RX_PROC = 0x00000100, /* rx ISR proc */ 224 MWL_DEBUG_KEYCACHE = 0x00000200, /* key cache management */ 225 MWL_DEBUG_STATE = 0x00000400, /* 802.11 state transitions */ 226 MWL_DEBUG_NODE = 0x00000800, /* node management */ 227 MWL_DEBUG_RECV_ALL = 0x00001000, /* trace all frames (beacons) */ 228 MWL_DEBUG_TSO = 0x00002000, /* TSO processing */ 229 MWL_DEBUG_AMPDU = 0x00004000, /* BA stream handling */ 230 MWL_DEBUG_ANY = 0xffffffff 231 }; 232 #define IS_BEACON(wh) \ 233 ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK|IEEE80211_FC0_SUBTYPE_MASK)) == \ 234 (IEEE80211_FC0_TYPE_MGT|IEEE80211_FC0_SUBTYPE_BEACON)) 235 #define IFF_DUMPPKTS_RECV(sc, wh) \ 236 ((sc->sc_debug & MWL_DEBUG_RECV) && \ 237 ((sc->sc_debug & MWL_DEBUG_RECV_ALL) || !IS_BEACON(wh))) 238 #define IFF_DUMPPKTS_XMIT(sc) \ 239 (sc->sc_debug & MWL_DEBUG_XMIT) 240 241 #define DPRINTF(sc, m, fmt, ...) do { \ 242 if (sc->sc_debug & (m)) \ 243 printf(fmt, __VA_ARGS__); \ 244 } while (0) 245 #define KEYPRINTF(sc, hk, mac) do { \ 246 if (sc->sc_debug & MWL_DEBUG_KEYCACHE) \ 247 mwl_keyprint(sc, __func__, hk, mac); \ 248 } while (0) 249 static void mwl_printrxbuf(const struct mwl_rxbuf *bf, u_int ix); 250 static void mwl_printtxbuf(const struct mwl_txbuf *bf, u_int qnum, u_int ix); 251 #else 252 #define IFF_DUMPPKTS_RECV(sc, wh) 0 253 #define IFF_DUMPPKTS_XMIT(sc) 0 254 #define DPRINTF(sc, m, fmt, ...) do { (void )sc; } while (0) 255 #define KEYPRINTF(sc, k, mac) do { (void )sc; } while (0) 256 #endif 257 258 static MALLOC_DEFINE(M_MWLDEV, "mwldev", "mwl driver dma buffers"); 259 260 /* 261 * Each packet has fixed front matter: a 2-byte length 262 * of the payload, followed by a 4-address 802.11 header 263 * (regardless of the actual header and always w/o any 264 * QoS header). The payload then follows. 265 */ 266 struct mwltxrec { 267 uint16_t fwlen; 268 struct ieee80211_frame_addr4 wh; 269 } __packed; 270 271 /* 272 * Read/Write shorthands for accesses to BAR 0. Note 273 * that all BAR 1 operations are done in the "hal" and 274 * there should be no reference to them here. 275 */ 276 #ifdef MWL_DEBUG 277 static __inline uint32_t 278 RD4(struct mwl_softc *sc, bus_size_t off) 279 { 280 return bus_space_read_4(sc->sc_io0t, sc->sc_io0h, off); 281 } 282 #endif 283 284 static __inline void 285 WR4(struct mwl_softc *sc, bus_size_t off, uint32_t val) 286 { 287 bus_space_write_4(sc->sc_io0t, sc->sc_io0h, off, val); 288 } 289 290 int 291 mwl_attach(uint16_t devid, struct mwl_softc *sc) 292 { 293 struct ieee80211com *ic = &sc->sc_ic; 294 struct mwl_hal *mh; 295 int error = 0; 296 297 DPRINTF(sc, MWL_DEBUG_ANY, "%s: devid 0x%x\n", __func__, devid); 298 299 /* 300 * Setup the RX free list lock early, so it can be consistently 301 * removed. 302 */ 303 MWL_RXFREE_INIT(sc); 304 305 mh = mwl_hal_attach(sc->sc_dev, devid, 306 sc->sc_io1h, sc->sc_io1t, sc->sc_dmat); 307 if (mh == NULL) { 308 device_printf(sc->sc_dev, "unable to attach HAL\n"); 309 error = EIO; 310 goto bad; 311 } 312 sc->sc_mh = mh; 313 /* 314 * Load firmware so we can get setup. We arbitrarily 315 * pick station firmware; we'll re-load firmware as 316 * needed so setting up the wrong mode isn't a big deal. 317 */ 318 if (mwl_hal_fwload(mh, NULL) != 0) { 319 device_printf(sc->sc_dev, "unable to setup builtin firmware\n"); 320 error = EIO; 321 goto bad1; 322 } 323 if (mwl_hal_gethwspecs(mh, &sc->sc_hwspecs) != 0) { 324 device_printf(sc->sc_dev, "unable to fetch h/w specs\n"); 325 error = EIO; 326 goto bad1; 327 } 328 error = mwl_getchannels(sc); 329 if (error != 0) 330 goto bad1; 331 332 sc->sc_txantenna = 0; /* h/w default */ 333 sc->sc_rxantenna = 0; /* h/w default */ 334 sc->sc_invalid = 0; /* ready to go, enable int handling */ 335 sc->sc_ageinterval = MWL_AGEINTERVAL; 336 337 /* 338 * Allocate tx+rx descriptors and populate the lists. 339 * We immediately push the information to the firmware 340 * as otherwise it gets upset. 341 */ 342 error = mwl_dma_setup(sc); 343 if (error != 0) { 344 device_printf(sc->sc_dev, "failed to setup descriptors: %d\n", 345 error); 346 goto bad1; 347 } 348 error = mwl_setupdma(sc); /* push to firmware */ 349 if (error != 0) /* NB: mwl_setupdma prints msg */ 350 goto bad1; 351 352 callout_init(&sc->sc_timer, 1); 353 callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 354 mbufq_init(&sc->sc_snd, ifqmaxlen); 355 356 sc->sc_tq = taskqueue_create("mwl_taskq", M_NOWAIT, 357 taskqueue_thread_enqueue, &sc->sc_tq); 358 taskqueue_start_threads(&sc->sc_tq, 1, PI_NET, 359 "%s taskq", device_get_nameunit(sc->sc_dev)); 360 361 TASK_INIT(&sc->sc_rxtask, 0, mwl_rx_proc, sc); 362 TASK_INIT(&sc->sc_radartask, 0, mwl_radar_proc, sc); 363 TASK_INIT(&sc->sc_chanswitchtask, 0, mwl_chanswitch_proc, sc); 364 TASK_INIT(&sc->sc_bawatchdogtask, 0, mwl_bawatchdog_proc, sc); 365 366 /* NB: insure BK queue is the lowest priority h/w queue */ 367 if (!mwl_tx_setup(sc, WME_AC_BK, MWL_WME_AC_BK)) { 368 device_printf(sc->sc_dev, 369 "unable to setup xmit queue for %s traffic!\n", 370 ieee80211_wme_acnames[WME_AC_BK]); 371 error = EIO; 372 goto bad2; 373 } 374 if (!mwl_tx_setup(sc, WME_AC_BE, MWL_WME_AC_BE) || 375 !mwl_tx_setup(sc, WME_AC_VI, MWL_WME_AC_VI) || 376 !mwl_tx_setup(sc, WME_AC_VO, MWL_WME_AC_VO)) { 377 /* 378 * Not enough hardware tx queues to properly do WME; 379 * just punt and assign them all to the same h/w queue. 380 * We could do a better job of this if, for example, 381 * we allocate queues when we switch from station to 382 * AP mode. 383 */ 384 if (sc->sc_ac2q[WME_AC_VI] != NULL) 385 mwl_tx_cleanupq(sc, sc->sc_ac2q[WME_AC_VI]); 386 if (sc->sc_ac2q[WME_AC_BE] != NULL) 387 mwl_tx_cleanupq(sc, sc->sc_ac2q[WME_AC_BE]); 388 sc->sc_ac2q[WME_AC_BE] = sc->sc_ac2q[WME_AC_BK]; 389 sc->sc_ac2q[WME_AC_VI] = sc->sc_ac2q[WME_AC_BK]; 390 sc->sc_ac2q[WME_AC_VO] = sc->sc_ac2q[WME_AC_BK]; 391 } 392 TASK_INIT(&sc->sc_txtask, 0, mwl_tx_proc, sc); 393 394 ic->ic_softc = sc; 395 ic->ic_name = device_get_nameunit(sc->sc_dev); 396 /* XXX not right but it's not used anywhere important */ 397 ic->ic_phytype = IEEE80211_T_OFDM; 398 ic->ic_opmode = IEEE80211_M_STA; 399 ic->ic_caps = 400 IEEE80211_C_STA /* station mode supported */ 401 | IEEE80211_C_HOSTAP /* hostap mode */ 402 | IEEE80211_C_MONITOR /* monitor mode */ 403 #if 0 404 | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */ 405 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 406 #endif 407 | IEEE80211_C_MBSS /* mesh point link mode */ 408 | IEEE80211_C_WDS /* WDS supported */ 409 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 410 | IEEE80211_C_SHSLOT /* short slot time supported */ 411 | IEEE80211_C_WME /* WME/WMM supported */ 412 | IEEE80211_C_BURST /* xmit bursting supported */ 413 | IEEE80211_C_WPA /* capable of WPA1+WPA2 */ 414 | IEEE80211_C_BGSCAN /* capable of bg scanning */ 415 | IEEE80211_C_TXFRAG /* handle tx frags */ 416 | IEEE80211_C_TXPMGT /* capable of txpow mgt */ 417 | IEEE80211_C_DFS /* DFS supported */ 418 ; 419 420 ic->ic_htcaps = 421 IEEE80211_HTCAP_SMPS_ENA /* SM PS mode enabled */ 422 | IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width */ 423 | IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */ 424 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */ 425 | IEEE80211_HTCAP_RXSTBC_2STREAM/* 1-2 spatial streams */ 426 #if MWL_AGGR_SIZE == 7935 427 | IEEE80211_HTCAP_MAXAMSDU_7935 /* max A-MSDU length */ 428 #else 429 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */ 430 #endif 431 #if 0 432 | IEEE80211_HTCAP_PSMP /* PSMP supported */ 433 | IEEE80211_HTCAP_40INTOLERANT /* 40MHz intolerant */ 434 #endif 435 /* s/w capabilities */ 436 | IEEE80211_HTC_HT /* HT operation */ 437 | IEEE80211_HTC_AMPDU /* tx A-MPDU */ 438 | IEEE80211_HTC_AMSDU /* tx A-MSDU */ 439 | IEEE80211_HTC_SMPS /* SMPS available */ 440 ; 441 442 /* 443 * Mark h/w crypto support. 444 * XXX no way to query h/w support. 445 */ 446 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP 447 | IEEE80211_CRYPTO_AES_CCM 448 | IEEE80211_CRYPTO_TKIP 449 | IEEE80211_CRYPTO_TKIPMIC 450 ; 451 /* 452 * Transmit requires space in the packet for a special 453 * format transmit record and optional padding between 454 * this record and the payload. Ask the net80211 layer 455 * to arrange this when encapsulating packets so we can 456 * add it efficiently. 457 */ 458 ic->ic_headroom = sizeof(struct mwltxrec) - 459 sizeof(struct ieee80211_frame); 460 461 IEEE80211_ADDR_COPY(ic->ic_macaddr, sc->sc_hwspecs.macAddr); 462 463 /* call MI attach routine. */ 464 ieee80211_ifattach(ic); 465 ic->ic_setregdomain = mwl_setregdomain; 466 ic->ic_getradiocaps = mwl_getradiocaps; 467 /* override default methods */ 468 ic->ic_raw_xmit = mwl_raw_xmit; 469 ic->ic_newassoc = mwl_newassoc; 470 ic->ic_updateslot = mwl_updateslot; 471 ic->ic_update_mcast = mwl_update_mcast; 472 ic->ic_update_promisc = mwl_update_promisc; 473 ic->ic_wme.wme_update = mwl_wme_update; 474 ic->ic_transmit = mwl_transmit; 475 ic->ic_ioctl = mwl_ioctl; 476 ic->ic_parent = mwl_parent; 477 478 ic->ic_node_alloc = mwl_node_alloc; 479 sc->sc_node_cleanup = ic->ic_node_cleanup; 480 ic->ic_node_cleanup = mwl_node_cleanup; 481 sc->sc_node_drain = ic->ic_node_drain; 482 ic->ic_node_drain = mwl_node_drain; 483 ic->ic_node_getsignal = mwl_node_getsignal; 484 ic->ic_node_getmimoinfo = mwl_node_getmimoinfo; 485 486 ic->ic_scan_start = mwl_scan_start; 487 ic->ic_scan_end = mwl_scan_end; 488 ic->ic_set_channel = mwl_set_channel; 489 490 sc->sc_recv_action = ic->ic_recv_action; 491 ic->ic_recv_action = mwl_recv_action; 492 sc->sc_addba_request = ic->ic_addba_request; 493 ic->ic_addba_request = mwl_addba_request; 494 sc->sc_addba_response = ic->ic_addba_response; 495 ic->ic_addba_response = mwl_addba_response; 496 sc->sc_addba_stop = ic->ic_addba_stop; 497 ic->ic_addba_stop = mwl_addba_stop; 498 499 ic->ic_vap_create = mwl_vap_create; 500 ic->ic_vap_delete = mwl_vap_delete; 501 502 ieee80211_radiotap_attach(ic, 503 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 504 MWL_TX_RADIOTAP_PRESENT, 505 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 506 MWL_RX_RADIOTAP_PRESENT); 507 /* 508 * Setup dynamic sysctl's now that country code and 509 * regdomain are available from the hal. 510 */ 511 mwl_sysctlattach(sc); 512 513 if (bootverbose) 514 ieee80211_announce(ic); 515 mwl_announce(sc); 516 return 0; 517 bad2: 518 mwl_dma_cleanup(sc); 519 bad1: 520 mwl_hal_detach(mh); 521 bad: 522 MWL_RXFREE_DESTROY(sc); 523 sc->sc_invalid = 1; 524 return error; 525 } 526 527 int 528 mwl_detach(struct mwl_softc *sc) 529 { 530 struct ieee80211com *ic = &sc->sc_ic; 531 532 MWL_LOCK(sc); 533 mwl_stop(sc); 534 MWL_UNLOCK(sc); 535 /* 536 * NB: the order of these is important: 537 * o call the 802.11 layer before detaching the hal to 538 * insure callbacks into the driver to delete global 539 * key cache entries can be handled 540 * o reclaim the tx queue data structures after calling 541 * the 802.11 layer as we'll get called back to reclaim 542 * node state and potentially want to use them 543 * o to cleanup the tx queues the hal is called, so detach 544 * it last 545 * Other than that, it's straightforward... 546 */ 547 ieee80211_ifdetach(ic); 548 callout_drain(&sc->sc_watchdog); 549 mwl_dma_cleanup(sc); 550 MWL_RXFREE_DESTROY(sc); 551 mwl_tx_cleanup(sc); 552 mwl_hal_detach(sc->sc_mh); 553 mbufq_drain(&sc->sc_snd); 554 555 return 0; 556 } 557 558 /* 559 * MAC address handling for multiple BSS on the same radio. 560 * The first vap uses the MAC address from the EEPROM. For 561 * subsequent vap's we set the U/L bit (bit 1) in the MAC 562 * address and use the next six bits as an index. 563 */ 564 static void 565 assign_address(struct mwl_softc *sc, uint8_t mac[IEEE80211_ADDR_LEN], int clone) 566 { 567 int i; 568 569 if (clone && mwl_hal_ismbsscapable(sc->sc_mh)) { 570 /* NB: we only do this if h/w supports multiple bssid */ 571 for (i = 0; i < 32; i++) 572 if ((sc->sc_bssidmask & (1<<i)) == 0) 573 break; 574 if (i != 0) 575 mac[0] |= (i << 2)|0x2; 576 } else 577 i = 0; 578 sc->sc_bssidmask |= 1<<i; 579 if (i == 0) 580 sc->sc_nbssid0++; 581 } 582 583 static void 584 reclaim_address(struct mwl_softc *sc, const uint8_t mac[IEEE80211_ADDR_LEN]) 585 { 586 int i = mac[0] >> 2; 587 if (i != 0 || --sc->sc_nbssid0 == 0) 588 sc->sc_bssidmask &= ~(1<<i); 589 } 590 591 static struct ieee80211vap * 592 mwl_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 593 enum ieee80211_opmode opmode, int flags, 594 const uint8_t bssid[IEEE80211_ADDR_LEN], 595 const uint8_t mac0[IEEE80211_ADDR_LEN]) 596 { 597 struct mwl_softc *sc = ic->ic_softc; 598 struct mwl_hal *mh = sc->sc_mh; 599 struct ieee80211vap *vap, *apvap; 600 struct mwl_hal_vap *hvap; 601 struct mwl_vap *mvp; 602 uint8_t mac[IEEE80211_ADDR_LEN]; 603 604 IEEE80211_ADDR_COPY(mac, mac0); 605 switch (opmode) { 606 case IEEE80211_M_HOSTAP: 607 case IEEE80211_M_MBSS: 608 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 609 assign_address(sc, mac, flags & IEEE80211_CLONE_BSSID); 610 hvap = mwl_hal_newvap(mh, MWL_HAL_AP, mac); 611 if (hvap == NULL) { 612 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 613 reclaim_address(sc, mac); 614 return NULL; 615 } 616 break; 617 case IEEE80211_M_STA: 618 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 619 assign_address(sc, mac, flags & IEEE80211_CLONE_BSSID); 620 hvap = mwl_hal_newvap(mh, MWL_HAL_STA, mac); 621 if (hvap == NULL) { 622 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 623 reclaim_address(sc, mac); 624 return NULL; 625 } 626 /* no h/w beacon miss support; always use s/w */ 627 flags |= IEEE80211_CLONE_NOBEACONS; 628 break; 629 case IEEE80211_M_WDS: 630 hvap = NULL; /* NB: we use associated AP vap */ 631 if (sc->sc_napvaps == 0) 632 return NULL; /* no existing AP vap */ 633 break; 634 case IEEE80211_M_MONITOR: 635 hvap = NULL; 636 break; 637 case IEEE80211_M_IBSS: 638 case IEEE80211_M_AHDEMO: 639 default: 640 return NULL; 641 } 642 643 mvp = malloc(sizeof(struct mwl_vap), M_80211_VAP, M_WAITOK | M_ZERO); 644 mvp->mv_hvap = hvap; 645 if (opmode == IEEE80211_M_WDS) { 646 /* 647 * WDS vaps must have an associated AP vap; find one. 648 * XXX not right. 649 */ 650 TAILQ_FOREACH(apvap, &ic->ic_vaps, iv_next) 651 if (apvap->iv_opmode == IEEE80211_M_HOSTAP) { 652 mvp->mv_ap_hvap = MWL_VAP(apvap)->mv_hvap; 653 break; 654 } 655 KASSERT(mvp->mv_ap_hvap != NULL, ("no ap vap")); 656 } 657 vap = &mvp->mv_vap; 658 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 659 /* override with driver methods */ 660 mvp->mv_newstate = vap->iv_newstate; 661 vap->iv_newstate = mwl_newstate; 662 vap->iv_max_keyix = 0; /* XXX */ 663 vap->iv_key_alloc = mwl_key_alloc; 664 vap->iv_key_delete = mwl_key_delete; 665 vap->iv_key_set = mwl_key_set; 666 #ifdef MWL_HOST_PS_SUPPORT 667 if (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_MBSS) { 668 vap->iv_update_ps = mwl_update_ps; 669 mvp->mv_set_tim = vap->iv_set_tim; 670 vap->iv_set_tim = mwl_set_tim; 671 } 672 #endif 673 vap->iv_reset = mwl_reset; 674 vap->iv_update_beacon = mwl_beacon_update; 675 676 /* override max aid so sta's cannot assoc when we're out of sta id's */ 677 vap->iv_max_aid = MWL_MAXSTAID; 678 /* override default A-MPDU rx parameters */ 679 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_64K; 680 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_4; 681 682 /* complete setup */ 683 ieee80211_vap_attach(vap, mwl_media_change, ieee80211_media_status, 684 mac); 685 686 switch (vap->iv_opmode) { 687 case IEEE80211_M_HOSTAP: 688 case IEEE80211_M_MBSS: 689 case IEEE80211_M_STA: 690 /* 691 * Setup sta db entry for local address. 692 */ 693 mwl_localstadb(vap); 694 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 695 vap->iv_opmode == IEEE80211_M_MBSS) 696 sc->sc_napvaps++; 697 else 698 sc->sc_nstavaps++; 699 break; 700 case IEEE80211_M_WDS: 701 sc->sc_nwdsvaps++; 702 break; 703 default: 704 break; 705 } 706 /* 707 * Setup overall operating mode. 708 */ 709 if (sc->sc_napvaps) 710 ic->ic_opmode = IEEE80211_M_HOSTAP; 711 else if (sc->sc_nstavaps) 712 ic->ic_opmode = IEEE80211_M_STA; 713 else 714 ic->ic_opmode = opmode; 715 716 return vap; 717 } 718 719 static void 720 mwl_vap_delete(struct ieee80211vap *vap) 721 { 722 struct mwl_vap *mvp = MWL_VAP(vap); 723 struct mwl_softc *sc = vap->iv_ic->ic_softc; 724 struct mwl_hal *mh = sc->sc_mh; 725 struct mwl_hal_vap *hvap = mvp->mv_hvap; 726 enum ieee80211_opmode opmode = vap->iv_opmode; 727 728 /* XXX disallow ap vap delete if WDS still present */ 729 if (sc->sc_running) { 730 /* quiesce h/w while we remove the vap */ 731 mwl_hal_intrset(mh, 0); /* disable interrupts */ 732 } 733 ieee80211_vap_detach(vap); 734 switch (opmode) { 735 case IEEE80211_M_HOSTAP: 736 case IEEE80211_M_MBSS: 737 case IEEE80211_M_STA: 738 KASSERT(hvap != NULL, ("no hal vap handle")); 739 (void) mwl_hal_delstation(hvap, vap->iv_myaddr); 740 mwl_hal_delvap(hvap); 741 if (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_MBSS) 742 sc->sc_napvaps--; 743 else 744 sc->sc_nstavaps--; 745 /* XXX don't do it for IEEE80211_CLONE_MACADDR */ 746 reclaim_address(sc, vap->iv_myaddr); 747 break; 748 case IEEE80211_M_WDS: 749 sc->sc_nwdsvaps--; 750 break; 751 default: 752 break; 753 } 754 mwl_cleartxq(sc, vap); 755 free(mvp, M_80211_VAP); 756 if (sc->sc_running) 757 mwl_hal_intrset(mh, sc->sc_imask); 758 } 759 760 void 761 mwl_suspend(struct mwl_softc *sc) 762 { 763 764 MWL_LOCK(sc); 765 mwl_stop(sc); 766 MWL_UNLOCK(sc); 767 } 768 769 void 770 mwl_resume(struct mwl_softc *sc) 771 { 772 int error = EDOOFUS; 773 774 MWL_LOCK(sc); 775 if (sc->sc_ic.ic_nrunning > 0) 776 error = mwl_init(sc); 777 MWL_UNLOCK(sc); 778 779 if (error == 0) 780 ieee80211_start_all(&sc->sc_ic); /* start all vap's */ 781 } 782 783 void 784 mwl_shutdown(void *arg) 785 { 786 struct mwl_softc *sc = arg; 787 788 MWL_LOCK(sc); 789 mwl_stop(sc); 790 MWL_UNLOCK(sc); 791 } 792 793 /* 794 * Interrupt handler. Most of the actual processing is deferred. 795 */ 796 void 797 mwl_intr(void *arg) 798 { 799 struct mwl_softc *sc = arg; 800 struct mwl_hal *mh = sc->sc_mh; 801 uint32_t status; 802 803 if (sc->sc_invalid) { 804 /* 805 * The hardware is not ready/present, don't touch anything. 806 * Note this can happen early on if the IRQ is shared. 807 */ 808 DPRINTF(sc, MWL_DEBUG_ANY, "%s: invalid; ignored\n", __func__); 809 return; 810 } 811 /* 812 * Figure out the reason(s) for the interrupt. 813 */ 814 mwl_hal_getisr(mh, &status); /* NB: clears ISR too */ 815 if (status == 0) /* must be a shared irq */ 816 return; 817 818 DPRINTF(sc, MWL_DEBUG_INTR, "%s: status 0x%x imask 0x%x\n", 819 __func__, status, sc->sc_imask); 820 if (status & MACREG_A2HRIC_BIT_RX_RDY) 821 taskqueue_enqueue(sc->sc_tq, &sc->sc_rxtask); 822 if (status & MACREG_A2HRIC_BIT_TX_DONE) 823 taskqueue_enqueue(sc->sc_tq, &sc->sc_txtask); 824 if (status & MACREG_A2HRIC_BIT_BA_WATCHDOG) 825 taskqueue_enqueue(sc->sc_tq, &sc->sc_bawatchdogtask); 826 if (status & MACREG_A2HRIC_BIT_OPC_DONE) 827 mwl_hal_cmddone(mh); 828 if (status & MACREG_A2HRIC_BIT_MAC_EVENT) { 829 ; 830 } 831 if (status & MACREG_A2HRIC_BIT_ICV_ERROR) { 832 /* TKIP ICV error */ 833 sc->sc_stats.mst_rx_badtkipicv++; 834 } 835 if (status & MACREG_A2HRIC_BIT_QUEUE_EMPTY) { 836 /* 11n aggregation queue is empty, re-fill */ 837 ; 838 } 839 if (status & MACREG_A2HRIC_BIT_QUEUE_FULL) { 840 ; 841 } 842 if (status & MACREG_A2HRIC_BIT_RADAR_DETECT) { 843 /* radar detected, process event */ 844 taskqueue_enqueue(sc->sc_tq, &sc->sc_radartask); 845 } 846 if (status & MACREG_A2HRIC_BIT_CHAN_SWITCH) { 847 /* DFS channel switch */ 848 taskqueue_enqueue(sc->sc_tq, &sc->sc_chanswitchtask); 849 } 850 } 851 852 static void 853 mwl_radar_proc(void *arg, int pending) 854 { 855 struct mwl_softc *sc = arg; 856 struct ieee80211com *ic = &sc->sc_ic; 857 858 DPRINTF(sc, MWL_DEBUG_ANY, "%s: radar detected, pending %u\n", 859 __func__, pending); 860 861 sc->sc_stats.mst_radardetect++; 862 /* XXX stop h/w BA streams? */ 863 864 IEEE80211_LOCK(ic); 865 ieee80211_dfs_notify_radar(ic, ic->ic_curchan); 866 IEEE80211_UNLOCK(ic); 867 } 868 869 static void 870 mwl_chanswitch_proc(void *arg, int pending) 871 { 872 struct mwl_softc *sc = arg; 873 struct ieee80211com *ic = &sc->sc_ic; 874 875 DPRINTF(sc, MWL_DEBUG_ANY, "%s: channel switch notice, pending %u\n", 876 __func__, pending); 877 878 IEEE80211_LOCK(ic); 879 sc->sc_csapending = 0; 880 ieee80211_csa_completeswitch(ic); 881 IEEE80211_UNLOCK(ic); 882 } 883 884 static void 885 mwl_bawatchdog(const MWL_HAL_BASTREAM *sp) 886 { 887 struct ieee80211_node *ni = sp->data[0]; 888 889 /* send DELBA and drop the stream */ 890 ieee80211_ampdu_stop(ni, sp->data[1], IEEE80211_REASON_UNSPECIFIED); 891 } 892 893 static void 894 mwl_bawatchdog_proc(void *arg, int pending) 895 { 896 struct mwl_softc *sc = arg; 897 struct mwl_hal *mh = sc->sc_mh; 898 const MWL_HAL_BASTREAM *sp; 899 uint8_t bitmap, n; 900 901 sc->sc_stats.mst_bawatchdog++; 902 903 if (mwl_hal_getwatchdogbitmap(mh, &bitmap) != 0) { 904 DPRINTF(sc, MWL_DEBUG_AMPDU, 905 "%s: could not get bitmap\n", __func__); 906 sc->sc_stats.mst_bawatchdog_failed++; 907 return; 908 } 909 DPRINTF(sc, MWL_DEBUG_AMPDU, "%s: bitmap 0x%x\n", __func__, bitmap); 910 if (bitmap == 0xff) { 911 n = 0; 912 /* disable all ba streams */ 913 for (bitmap = 0; bitmap < 8; bitmap++) { 914 sp = mwl_hal_bastream_lookup(mh, bitmap); 915 if (sp != NULL) { 916 mwl_bawatchdog(sp); 917 n++; 918 } 919 } 920 if (n == 0) { 921 DPRINTF(sc, MWL_DEBUG_AMPDU, 922 "%s: no BA streams found\n", __func__); 923 sc->sc_stats.mst_bawatchdog_empty++; 924 } 925 } else if (bitmap != 0xaa) { 926 /* disable a single ba stream */ 927 sp = mwl_hal_bastream_lookup(mh, bitmap); 928 if (sp != NULL) { 929 mwl_bawatchdog(sp); 930 } else { 931 DPRINTF(sc, MWL_DEBUG_AMPDU, 932 "%s: no BA stream %d\n", __func__, bitmap); 933 sc->sc_stats.mst_bawatchdog_notfound++; 934 } 935 } 936 } 937 938 /* 939 * Convert net80211 channel to a HAL channel. 940 */ 941 static void 942 mwl_mapchan(MWL_HAL_CHANNEL *hc, const struct ieee80211_channel *chan) 943 { 944 hc->channel = chan->ic_ieee; 945 946 *(uint32_t *)&hc->channelFlags = 0; 947 if (IEEE80211_IS_CHAN_2GHZ(chan)) 948 hc->channelFlags.FreqBand = MWL_FREQ_BAND_2DOT4GHZ; 949 else if (IEEE80211_IS_CHAN_5GHZ(chan)) 950 hc->channelFlags.FreqBand = MWL_FREQ_BAND_5GHZ; 951 if (IEEE80211_IS_CHAN_HT40(chan)) { 952 hc->channelFlags.ChnlWidth = MWL_CH_40_MHz_WIDTH; 953 if (IEEE80211_IS_CHAN_HT40U(chan)) 954 hc->channelFlags.ExtChnlOffset = MWL_EXT_CH_ABOVE_CTRL_CH; 955 else 956 hc->channelFlags.ExtChnlOffset = MWL_EXT_CH_BELOW_CTRL_CH; 957 } else 958 hc->channelFlags.ChnlWidth = MWL_CH_20_MHz_WIDTH; 959 /* XXX 10MHz channels */ 960 } 961 962 /* 963 * Inform firmware of our tx/rx dma setup. The BAR 0 964 * writes below are for compatibility with older firmware. 965 * For current firmware we send this information with a 966 * cmd block via mwl_hal_sethwdma. 967 */ 968 static int 969 mwl_setupdma(struct mwl_softc *sc) 970 { 971 int error, i; 972 973 sc->sc_hwdma.rxDescRead = sc->sc_rxdma.dd_desc_paddr; 974 WR4(sc, sc->sc_hwspecs.rxDescRead, sc->sc_hwdma.rxDescRead); 975 WR4(sc, sc->sc_hwspecs.rxDescWrite, sc->sc_hwdma.rxDescRead); 976 977 for (i = 0; i < MWL_NUM_TX_QUEUES-MWL_NUM_ACK_QUEUES; i++) { 978 struct mwl_txq *txq = &sc->sc_txq[i]; 979 sc->sc_hwdma.wcbBase[i] = txq->dma.dd_desc_paddr; 980 WR4(sc, sc->sc_hwspecs.wcbBase[i], sc->sc_hwdma.wcbBase[i]); 981 } 982 sc->sc_hwdma.maxNumTxWcb = mwl_txbuf; 983 sc->sc_hwdma.maxNumWCB = MWL_NUM_TX_QUEUES-MWL_NUM_ACK_QUEUES; 984 985 error = mwl_hal_sethwdma(sc->sc_mh, &sc->sc_hwdma); 986 if (error != 0) { 987 device_printf(sc->sc_dev, 988 "unable to setup tx/rx dma; hal status %u\n", error); 989 /* XXX */ 990 } 991 return error; 992 } 993 994 /* 995 * Inform firmware of tx rate parameters. 996 * Called after a channel change. 997 */ 998 static int 999 mwl_setcurchanrates(struct mwl_softc *sc) 1000 { 1001 struct ieee80211com *ic = &sc->sc_ic; 1002 const struct ieee80211_rateset *rs; 1003 MWL_HAL_TXRATE rates; 1004 1005 memset(&rates, 0, sizeof(rates)); 1006 rs = ieee80211_get_suprates(ic, ic->ic_curchan); 1007 /* rate used to send management frames */ 1008 rates.MgtRate = rs->rs_rates[0] & IEEE80211_RATE_VAL; 1009 /* rate used to send multicast frames */ 1010 rates.McastRate = rates.MgtRate; 1011 1012 return mwl_hal_settxrate_auto(sc->sc_mh, &rates); 1013 } 1014 1015 /* 1016 * Inform firmware of tx rate parameters. Called whenever 1017 * user-settable params change and after a channel change. 1018 */ 1019 static int 1020 mwl_setrates(struct ieee80211vap *vap) 1021 { 1022 struct mwl_vap *mvp = MWL_VAP(vap); 1023 struct ieee80211_node *ni = vap->iv_bss; 1024 const struct ieee80211_txparam *tp = ni->ni_txparms; 1025 MWL_HAL_TXRATE rates; 1026 1027 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("state %d", vap->iv_state)); 1028 1029 /* 1030 * Update the h/w rate map. 1031 * NB: 0x80 for MCS is passed through unchanged 1032 */ 1033 memset(&rates, 0, sizeof(rates)); 1034 /* rate used to send management frames */ 1035 rates.MgtRate = tp->mgmtrate; 1036 /* rate used to send multicast frames */ 1037 rates.McastRate = tp->mcastrate; 1038 1039 /* while here calculate EAPOL fixed rate cookie */ 1040 mvp->mv_eapolformat = htole16(mwl_calcformat(rates.MgtRate, ni)); 1041 1042 return mwl_hal_settxrate(mvp->mv_hvap, 1043 tp->ucastrate != IEEE80211_FIXED_RATE_NONE ? 1044 RATE_FIXED : RATE_AUTO, &rates); 1045 } 1046 1047 /* 1048 * Setup a fixed xmit rate cookie for EAPOL frames. 1049 */ 1050 static void 1051 mwl_seteapolformat(struct ieee80211vap *vap) 1052 { 1053 struct mwl_vap *mvp = MWL_VAP(vap); 1054 struct ieee80211_node *ni = vap->iv_bss; 1055 enum ieee80211_phymode mode; 1056 uint8_t rate; 1057 1058 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("state %d", vap->iv_state)); 1059 1060 mode = ieee80211_chan2mode(ni->ni_chan); 1061 /* 1062 * Use legacy rates when operating a mixed HT+non-HT bss. 1063 * NB: this may violate POLA for sta and wds vap's. 1064 */ 1065 if (mode == IEEE80211_MODE_11NA && 1066 (vap->iv_flags_ht & IEEE80211_FHT_PUREN) == 0) 1067 rate = vap->iv_txparms[IEEE80211_MODE_11A].mgmtrate; 1068 else if (mode == IEEE80211_MODE_11NG && 1069 (vap->iv_flags_ht & IEEE80211_FHT_PUREN) == 0) 1070 rate = vap->iv_txparms[IEEE80211_MODE_11G].mgmtrate; 1071 else 1072 rate = vap->iv_txparms[mode].mgmtrate; 1073 1074 mvp->mv_eapolformat = htole16(mwl_calcformat(rate, ni)); 1075 } 1076 1077 /* 1078 * Map SKU+country code to region code for radar bin'ing. 1079 */ 1080 static int 1081 mwl_map2regioncode(const struct ieee80211_regdomain *rd) 1082 { 1083 switch (rd->regdomain) { 1084 case SKU_FCC: 1085 case SKU_FCC3: 1086 return DOMAIN_CODE_FCC; 1087 case SKU_CA: 1088 return DOMAIN_CODE_IC; 1089 case SKU_ETSI: 1090 case SKU_ETSI2: 1091 case SKU_ETSI3: 1092 if (rd->country == CTRY_SPAIN) 1093 return DOMAIN_CODE_SPAIN; 1094 if (rd->country == CTRY_FRANCE || rd->country == CTRY_FRANCE2) 1095 return DOMAIN_CODE_FRANCE; 1096 /* XXX force 1.3.1 radar type */ 1097 return DOMAIN_CODE_ETSI_131; 1098 case SKU_JAPAN: 1099 return DOMAIN_CODE_MKK; 1100 case SKU_ROW: 1101 return DOMAIN_CODE_DGT; /* Taiwan */ 1102 case SKU_APAC: 1103 case SKU_APAC2: 1104 case SKU_APAC3: 1105 return DOMAIN_CODE_AUS; /* Australia */ 1106 } 1107 /* XXX KOREA? */ 1108 return DOMAIN_CODE_FCC; /* XXX? */ 1109 } 1110 1111 static int 1112 mwl_hal_reset(struct mwl_softc *sc) 1113 { 1114 struct ieee80211com *ic = &sc->sc_ic; 1115 struct mwl_hal *mh = sc->sc_mh; 1116 1117 mwl_hal_setantenna(mh, WL_ANTENNATYPE_RX, sc->sc_rxantenna); 1118 mwl_hal_setantenna(mh, WL_ANTENNATYPE_TX, sc->sc_txantenna); 1119 mwl_hal_setradio(mh, 1, WL_AUTO_PREAMBLE); 1120 mwl_hal_setwmm(sc->sc_mh, (ic->ic_flags & IEEE80211_F_WME) != 0); 1121 mwl_chan_set(sc, ic->ic_curchan); 1122 /* NB: RF/RA performance tuned for indoor mode */ 1123 mwl_hal_setrateadaptmode(mh, 0); 1124 mwl_hal_setoptimizationlevel(mh, 1125 (ic->ic_flags & IEEE80211_F_BURST) != 0); 1126 1127 mwl_hal_setregioncode(mh, mwl_map2regioncode(&ic->ic_regdomain)); 1128 1129 mwl_hal_setaggampduratemode(mh, 1, 80); /* XXX */ 1130 mwl_hal_setcfend(mh, 0); /* XXX */ 1131 1132 return 1; 1133 } 1134 1135 static int 1136 mwl_init(struct mwl_softc *sc) 1137 { 1138 struct mwl_hal *mh = sc->sc_mh; 1139 int error = 0; 1140 1141 MWL_LOCK_ASSERT(sc); 1142 1143 /* 1144 * Stop anything previously setup. This is safe 1145 * whether this is the first time through or not. 1146 */ 1147 mwl_stop(sc); 1148 1149 /* 1150 * Push vap-independent state to the firmware. 1151 */ 1152 if (!mwl_hal_reset(sc)) { 1153 device_printf(sc->sc_dev, "unable to reset hardware\n"); 1154 return EIO; 1155 } 1156 1157 /* 1158 * Setup recv (once); transmit is already good to go. 1159 */ 1160 error = mwl_startrecv(sc); 1161 if (error != 0) { 1162 device_printf(sc->sc_dev, "unable to start recv logic\n"); 1163 return error; 1164 } 1165 1166 /* 1167 * Enable interrupts. 1168 */ 1169 sc->sc_imask = MACREG_A2HRIC_BIT_RX_RDY 1170 | MACREG_A2HRIC_BIT_TX_DONE 1171 | MACREG_A2HRIC_BIT_OPC_DONE 1172 #if 0 1173 | MACREG_A2HRIC_BIT_MAC_EVENT 1174 #endif 1175 | MACREG_A2HRIC_BIT_ICV_ERROR 1176 | MACREG_A2HRIC_BIT_RADAR_DETECT 1177 | MACREG_A2HRIC_BIT_CHAN_SWITCH 1178 #if 0 1179 | MACREG_A2HRIC_BIT_QUEUE_EMPTY 1180 #endif 1181 | MACREG_A2HRIC_BIT_BA_WATCHDOG 1182 | MACREQ_A2HRIC_BIT_TX_ACK 1183 ; 1184 1185 sc->sc_running = 1; 1186 mwl_hal_intrset(mh, sc->sc_imask); 1187 callout_reset(&sc->sc_watchdog, hz, mwl_watchdog, sc); 1188 1189 return 0; 1190 } 1191 1192 static void 1193 mwl_stop(struct mwl_softc *sc) 1194 { 1195 1196 MWL_LOCK_ASSERT(sc); 1197 if (sc->sc_running) { 1198 /* 1199 * Shutdown the hardware and driver. 1200 */ 1201 sc->sc_running = 0; 1202 callout_stop(&sc->sc_watchdog); 1203 sc->sc_tx_timer = 0; 1204 mwl_draintxq(sc); 1205 } 1206 } 1207 1208 static int 1209 mwl_reset_vap(struct ieee80211vap *vap, int state) 1210 { 1211 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1212 struct ieee80211com *ic = vap->iv_ic; 1213 1214 if (state == IEEE80211_S_RUN) 1215 mwl_setrates(vap); 1216 /* XXX off by 1? */ 1217 mwl_hal_setrtsthreshold(hvap, vap->iv_rtsthreshold); 1218 /* XXX auto? 20/40 split? */ 1219 mwl_hal_sethtgi(hvap, (vap->iv_flags_ht & 1220 (IEEE80211_FHT_SHORTGI20|IEEE80211_FHT_SHORTGI40)) ? 1 : 0); 1221 mwl_hal_setnprot(hvap, ic->ic_htprotmode == IEEE80211_PROT_NONE ? 1222 HTPROTECT_NONE : HTPROTECT_AUTO); 1223 /* XXX txpower cap */ 1224 1225 /* re-setup beacons */ 1226 if (state == IEEE80211_S_RUN && 1227 (vap->iv_opmode == IEEE80211_M_HOSTAP || 1228 vap->iv_opmode == IEEE80211_M_MBSS || 1229 vap->iv_opmode == IEEE80211_M_IBSS)) { 1230 mwl_setapmode(vap, vap->iv_bss->ni_chan); 1231 mwl_hal_setnprotmode(hvap, 1232 MS(ic->ic_curhtprotmode, IEEE80211_HTINFO_OPMODE)); 1233 return mwl_beacon_setup(vap); 1234 } 1235 return 0; 1236 } 1237 1238 /* 1239 * Reset the hardware w/o losing operational state. 1240 * Used to to reset or reload hardware state for a vap. 1241 */ 1242 static int 1243 mwl_reset(struct ieee80211vap *vap, u_long cmd) 1244 { 1245 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1246 int error = 0; 1247 1248 if (hvap != NULL) { /* WDS, MONITOR, etc. */ 1249 struct ieee80211com *ic = vap->iv_ic; 1250 struct mwl_softc *sc = ic->ic_softc; 1251 struct mwl_hal *mh = sc->sc_mh; 1252 1253 /* XXX handle DWDS sta vap change */ 1254 /* XXX do we need to disable interrupts? */ 1255 mwl_hal_intrset(mh, 0); /* disable interrupts */ 1256 error = mwl_reset_vap(vap, vap->iv_state); 1257 mwl_hal_intrset(mh, sc->sc_imask); 1258 } 1259 return error; 1260 } 1261 1262 /* 1263 * Allocate a tx buffer for sending a frame. The 1264 * packet is assumed to have the WME AC stored so 1265 * we can use it to select the appropriate h/w queue. 1266 */ 1267 static struct mwl_txbuf * 1268 mwl_gettxbuf(struct mwl_softc *sc, struct mwl_txq *txq) 1269 { 1270 struct mwl_txbuf *bf; 1271 1272 /* 1273 * Grab a TX buffer and associated resources. 1274 */ 1275 MWL_TXQ_LOCK(txq); 1276 bf = STAILQ_FIRST(&txq->free); 1277 if (bf != NULL) { 1278 STAILQ_REMOVE_HEAD(&txq->free, bf_list); 1279 txq->nfree--; 1280 } 1281 MWL_TXQ_UNLOCK(txq); 1282 if (bf == NULL) 1283 DPRINTF(sc, MWL_DEBUG_XMIT, 1284 "%s: out of xmit buffers on q %d\n", __func__, txq->qnum); 1285 return bf; 1286 } 1287 1288 /* 1289 * Return a tx buffer to the queue it came from. Note there 1290 * are two cases because we must preserve the order of buffers 1291 * as it reflects the fixed order of descriptors in memory 1292 * (the firmware pre-fetches descriptors so we cannot reorder). 1293 */ 1294 static void 1295 mwl_puttxbuf_head(struct mwl_txq *txq, struct mwl_txbuf *bf) 1296 { 1297 bf->bf_m = NULL; 1298 bf->bf_node = NULL; 1299 MWL_TXQ_LOCK(txq); 1300 STAILQ_INSERT_HEAD(&txq->free, bf, bf_list); 1301 txq->nfree++; 1302 MWL_TXQ_UNLOCK(txq); 1303 } 1304 1305 static void 1306 mwl_puttxbuf_tail(struct mwl_txq *txq, struct mwl_txbuf *bf) 1307 { 1308 bf->bf_m = NULL; 1309 bf->bf_node = NULL; 1310 MWL_TXQ_LOCK(txq); 1311 STAILQ_INSERT_TAIL(&txq->free, bf, bf_list); 1312 txq->nfree++; 1313 MWL_TXQ_UNLOCK(txq); 1314 } 1315 1316 static int 1317 mwl_transmit(struct ieee80211com *ic, struct mbuf *m) 1318 { 1319 struct mwl_softc *sc = ic->ic_softc; 1320 int error; 1321 1322 MWL_LOCK(sc); 1323 if (!sc->sc_running) { 1324 MWL_UNLOCK(sc); 1325 return (ENXIO); 1326 } 1327 error = mbufq_enqueue(&sc->sc_snd, m); 1328 if (error) { 1329 MWL_UNLOCK(sc); 1330 return (error); 1331 } 1332 mwl_start(sc); 1333 MWL_UNLOCK(sc); 1334 return (0); 1335 } 1336 1337 static void 1338 mwl_start(struct mwl_softc *sc) 1339 { 1340 struct ieee80211_node *ni; 1341 struct mwl_txbuf *bf; 1342 struct mbuf *m; 1343 struct mwl_txq *txq = NULL; /* XXX silence gcc */ 1344 int nqueued; 1345 1346 MWL_LOCK_ASSERT(sc); 1347 if (!sc->sc_running || sc->sc_invalid) 1348 return; 1349 nqueued = 0; 1350 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1351 /* 1352 * Grab the node for the destination. 1353 */ 1354 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1355 KASSERT(ni != NULL, ("no node")); 1356 m->m_pkthdr.rcvif = NULL; /* committed, clear ref */ 1357 /* 1358 * Grab a TX buffer and associated resources. 1359 * We honor the classification by the 802.11 layer. 1360 */ 1361 txq = sc->sc_ac2q[M_WME_GETAC(m)]; 1362 bf = mwl_gettxbuf(sc, txq); 1363 if (bf == NULL) { 1364 m_freem(m); 1365 ieee80211_free_node(ni); 1366 #ifdef MWL_TX_NODROP 1367 sc->sc_stats.mst_tx_qstop++; 1368 break; 1369 #else 1370 DPRINTF(sc, MWL_DEBUG_XMIT, 1371 "%s: tail drop on q %d\n", __func__, txq->qnum); 1372 sc->sc_stats.mst_tx_qdrop++; 1373 continue; 1374 #endif /* MWL_TX_NODROP */ 1375 } 1376 1377 /* 1378 * Pass the frame to the h/w for transmission. 1379 */ 1380 if (mwl_tx_start(sc, ni, bf, m)) { 1381 if_inc_counter(ni->ni_vap->iv_ifp, 1382 IFCOUNTER_OERRORS, 1); 1383 mwl_puttxbuf_head(txq, bf); 1384 ieee80211_free_node(ni); 1385 continue; 1386 } 1387 nqueued++; 1388 if (nqueued >= mwl_txcoalesce) { 1389 /* 1390 * Poke the firmware to process queued frames; 1391 * see below about (lack of) locking. 1392 */ 1393 nqueued = 0; 1394 mwl_hal_txstart(sc->sc_mh, 0/*XXX*/); 1395 } 1396 } 1397 if (nqueued) { 1398 /* 1399 * NB: We don't need to lock against tx done because 1400 * this just prods the firmware to check the transmit 1401 * descriptors. The firmware will also start fetching 1402 * descriptors by itself if it notices new ones are 1403 * present when it goes to deliver a tx done interrupt 1404 * to the host. So if we race with tx done processing 1405 * it's ok. Delivering the kick here rather than in 1406 * mwl_tx_start is an optimization to avoid poking the 1407 * firmware for each packet. 1408 * 1409 * NB: the queue id isn't used so 0 is ok. 1410 */ 1411 mwl_hal_txstart(sc->sc_mh, 0/*XXX*/); 1412 } 1413 } 1414 1415 static int 1416 mwl_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1417 const struct ieee80211_bpf_params *params) 1418 { 1419 struct ieee80211com *ic = ni->ni_ic; 1420 struct mwl_softc *sc = ic->ic_softc; 1421 struct mwl_txbuf *bf; 1422 struct mwl_txq *txq; 1423 1424 if (!sc->sc_running || sc->sc_invalid) { 1425 m_freem(m); 1426 return ENETDOWN; 1427 } 1428 /* 1429 * Grab a TX buffer and associated resources. 1430 * Note that we depend on the classification 1431 * by the 802.11 layer to get to the right h/w 1432 * queue. Management frames must ALWAYS go on 1433 * queue 1 but we cannot just force that here 1434 * because we may receive non-mgt frames. 1435 */ 1436 txq = sc->sc_ac2q[M_WME_GETAC(m)]; 1437 bf = mwl_gettxbuf(sc, txq); 1438 if (bf == NULL) { 1439 sc->sc_stats.mst_tx_qstop++; 1440 m_freem(m); 1441 return ENOBUFS; 1442 } 1443 /* 1444 * Pass the frame to the h/w for transmission. 1445 */ 1446 if (mwl_tx_start(sc, ni, bf, m)) { 1447 mwl_puttxbuf_head(txq, bf); 1448 1449 return EIO; /* XXX */ 1450 } 1451 /* 1452 * NB: We don't need to lock against tx done because 1453 * this just prods the firmware to check the transmit 1454 * descriptors. The firmware will also start fetching 1455 * descriptors by itself if it notices new ones are 1456 * present when it goes to deliver a tx done interrupt 1457 * to the host. So if we race with tx done processing 1458 * it's ok. Delivering the kick here rather than in 1459 * mwl_tx_start is an optimization to avoid poking the 1460 * firmware for each packet. 1461 * 1462 * NB: the queue id isn't used so 0 is ok. 1463 */ 1464 mwl_hal_txstart(sc->sc_mh, 0/*XXX*/); 1465 return 0; 1466 } 1467 1468 static int 1469 mwl_media_change(struct ifnet *ifp) 1470 { 1471 struct ieee80211vap *vap = ifp->if_softc; 1472 int error; 1473 1474 error = ieee80211_media_change(ifp); 1475 /* NB: only the fixed rate can change and that doesn't need a reset */ 1476 if (error == ENETRESET) { 1477 mwl_setrates(vap); 1478 error = 0; 1479 } 1480 return error; 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 = k - vap->iv_nw_keys; 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, 1863 MS(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->rssi[0], mn->mn_ai.rssi_a); 2438 CVT(mi->rssi[1], mn->mn_ai.rssi_b); 2439 CVT(mi->rssi[2], mn->mn_ai.rssi_c); 2440 2441 mi->noise[0] = mn->mn_ai.nf_a; 2442 mi->noise[1] = mn->mn_ai.nf_b; 2443 mi->noise[2] = 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, void *data, void *arg) 2526 { 2527 struct mwl_softc *sc = arg; 2528 2529 /* XXX bounds check data */ 2530 mwl_putrxdma(sc, data); 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 mwl_softc *sc = arg; 2610 struct ieee80211com *ic = &sc->sc_ic; 2611 struct mwl_rxbuf *bf; 2612 struct mwl_rxdesc *ds; 2613 struct mbuf *m; 2614 struct ieee80211_qosframe *wh; 2615 struct ieee80211_qosframe_addr4 *wh4; 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 MEXTADD(m, data, MWL_AGGR_SIZE, mwl_ext_free, 2750 data, sc, 0, 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 if (IEEE80211_IS_DSTODS(wh)) { 2764 wh4 = mtod(m, 2765 struct ieee80211_qosframe_addr4*); 2766 *(uint16_t *)wh4->i_qos = ds->QosCtrl; 2767 } else { 2768 *(uint16_t *)wh->i_qos = ds->QosCtrl; 2769 } 2770 } 2771 /* 2772 * The f/w strips WEP header but doesn't clear 2773 * the WEP bit; mark the packet with M_WEP so 2774 * net80211 will treat the data as decrypted. 2775 * While here also clear the PWR_MGT bit since 2776 * power save is handled by the firmware and 2777 * passing this up will potentially cause the 2778 * upper layer to put a station in power save 2779 * (except when configured with MWL_HOST_PS_SUPPORT). 2780 */ 2781 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) 2782 m->m_flags |= M_WEP; 2783 #ifdef MWL_HOST_PS_SUPPORT 2784 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED; 2785 #else 2786 wh->i_fc[1] &= ~(IEEE80211_FC1_PROTECTED | 2787 IEEE80211_FC1_PWR_MGT); 2788 #endif 2789 2790 if (ieee80211_radiotap_active(ic)) { 2791 struct mwl_rx_radiotap_header *tap = &sc->sc_rx_th; 2792 2793 tap->wr_flags = 0; 2794 tap->wr_rate = ds->Rate; 2795 tap->wr_antsignal = rssi + nf; 2796 tap->wr_antnoise = nf; 2797 } 2798 if (IFF_DUMPPKTS_RECV(sc, wh)) { 2799 ieee80211_dump_pkt(ic, mtod(m, caddr_t), 2800 len, ds->Rate, rssi); 2801 } 2802 /* dispatch */ 2803 ni = ieee80211_find_rxnode(ic, 2804 (const struct ieee80211_frame_min *) wh); 2805 if (ni != NULL) { 2806 mn = MWL_NODE(ni); 2807 #ifdef MWL_ANT_INFO_SUPPORT 2808 mn->mn_ai.rssi_a = ds->ai.rssi_a; 2809 mn->mn_ai.rssi_b = ds->ai.rssi_b; 2810 mn->mn_ai.rssi_c = ds->ai.rssi_c; 2811 mn->mn_ai.rsvd1 = rssi; 2812 #endif 2813 /* tag AMPDU aggregates for reorder processing */ 2814 if (ni->ni_flags & IEEE80211_NODE_HT) 2815 m->m_flags |= M_AMPDU; 2816 (void) ieee80211_input(ni, m, rssi, nf); 2817 ieee80211_free_node(ni); 2818 } else 2819 (void) ieee80211_input_all(ic, m, rssi, nf); 2820 rx_next: 2821 /* NB: ignore ENOMEM so we process more descriptors */ 2822 (void) mwl_rxbuf_init(sc, bf); 2823 bf = STAILQ_NEXT(bf, bf_list); 2824 } 2825 rx_stop: 2826 sc->sc_rxnext = bf; 2827 2828 if (mbufq_first(&sc->sc_snd) != NULL) { 2829 /* NB: kick fw; the tx thread may have been preempted */ 2830 mwl_hal_txstart(sc->sc_mh, 0); 2831 mwl_start(sc); 2832 } 2833 } 2834 2835 static void 2836 mwl_txq_init(struct mwl_softc *sc, struct mwl_txq *txq, int qnum) 2837 { 2838 struct mwl_txbuf *bf, *bn; 2839 struct mwl_txdesc *ds; 2840 2841 MWL_TXQ_LOCK_INIT(sc, txq); 2842 txq->qnum = qnum; 2843 txq->txpri = 0; /* XXX */ 2844 #if 0 2845 /* NB: q setup by mwl_txdma_setup XXX */ 2846 STAILQ_INIT(&txq->free); 2847 #endif 2848 STAILQ_FOREACH(bf, &txq->free, bf_list) { 2849 bf->bf_txq = txq; 2850 2851 ds = bf->bf_desc; 2852 bn = STAILQ_NEXT(bf, bf_list); 2853 if (bn == NULL) 2854 bn = STAILQ_FIRST(&txq->free); 2855 ds->pPhysNext = htole32(bn->bf_daddr); 2856 } 2857 STAILQ_INIT(&txq->active); 2858 } 2859 2860 /* 2861 * Setup a hardware data transmit queue for the specified 2862 * access control. We record the mapping from ac's 2863 * to h/w queues for use by mwl_tx_start. 2864 */ 2865 static int 2866 mwl_tx_setup(struct mwl_softc *sc, int ac, int mvtype) 2867 { 2868 struct mwl_txq *txq; 2869 2870 if (ac >= nitems(sc->sc_ac2q)) { 2871 device_printf(sc->sc_dev, "AC %u out of range, max %zu!\n", 2872 ac, nitems(sc->sc_ac2q)); 2873 return 0; 2874 } 2875 if (mvtype >= MWL_NUM_TX_QUEUES) { 2876 device_printf(sc->sc_dev, "mvtype %u out of range, max %u!\n", 2877 mvtype, MWL_NUM_TX_QUEUES); 2878 return 0; 2879 } 2880 txq = &sc->sc_txq[mvtype]; 2881 mwl_txq_init(sc, txq, mvtype); 2882 sc->sc_ac2q[ac] = txq; 2883 return 1; 2884 } 2885 2886 /* 2887 * Update WME parameters for a transmit queue. 2888 */ 2889 static int 2890 mwl_txq_update(struct mwl_softc *sc, int ac) 2891 { 2892 #define MWL_EXPONENT_TO_VALUE(v) ((1<<v)-1) 2893 struct ieee80211com *ic = &sc->sc_ic; 2894 struct mwl_txq *txq = sc->sc_ac2q[ac]; 2895 struct wmeParams *wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 2896 struct mwl_hal *mh = sc->sc_mh; 2897 int aifs, cwmin, cwmax, txoplim; 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 = SM(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 | SM(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 | SM(mwl_cvtlegacyrate(rate), EAGLE_TXD_RATE) 3064 | EAGLE_TXD_CHW_20 3065 /* XXX iv_flags & IEEE80211_F_SHPREAMBLE? */ 3066 | (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_PREAMBLE ? 3067 EAGLE_TXD_PREAMBLE_SHORT : EAGLE_TXD_PREAMBLE_LONG); 3068 } 3069 return fmt; 3070 } 3071 3072 static int 3073 mwl_tx_start(struct mwl_softc *sc, struct ieee80211_node *ni, struct mwl_txbuf *bf, 3074 struct mbuf *m0) 3075 { 3076 struct ieee80211com *ic = &sc->sc_ic; 3077 struct ieee80211vap *vap = ni->ni_vap; 3078 int error, iswep, ismcast; 3079 int hdrlen, copyhdrlen, pktlen; 3080 struct mwl_txdesc *ds; 3081 struct mwl_txq *txq; 3082 struct ieee80211_frame *wh; 3083 struct mwltxrec *tr; 3084 struct mwl_node *mn; 3085 uint16_t qos; 3086 #if MWL_TXDESC > 1 3087 int i; 3088 #endif 3089 3090 wh = mtod(m0, struct ieee80211_frame *); 3091 iswep = wh->i_fc[1] & IEEE80211_FC1_PROTECTED; 3092 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 3093 hdrlen = ieee80211_anyhdrsize(wh); 3094 copyhdrlen = hdrlen; 3095 pktlen = m0->m_pkthdr.len; 3096 if (IEEE80211_QOS_HAS_SEQ(wh)) { 3097 if (IEEE80211_IS_DSTODS(wh)) { 3098 qos = *(uint16_t *) 3099 (((struct ieee80211_qosframe_addr4 *) wh)->i_qos); 3100 copyhdrlen -= sizeof(qos); 3101 } else 3102 qos = *(uint16_t *) 3103 (((struct ieee80211_qosframe *) wh)->i_qos); 3104 } else 3105 qos = 0; 3106 3107 if (iswep) { 3108 const struct ieee80211_cipher *cip; 3109 struct ieee80211_key *k; 3110 3111 /* 3112 * Construct the 802.11 header+trailer for an encrypted 3113 * frame. The only reason this can fail is because of an 3114 * unknown or unsupported cipher/key type. 3115 * 3116 * NB: we do this even though the firmware will ignore 3117 * what we've done for WEP and TKIP as we need the 3118 * ExtIV filled in for CCMP and this also adjusts 3119 * the headers which simplifies our work below. 3120 */ 3121 k = ieee80211_crypto_encap(ni, m0); 3122 if (k == NULL) { 3123 /* 3124 * This can happen when the key is yanked after the 3125 * frame was queued. Just discard the frame; the 3126 * 802.11 layer counts failures and provides 3127 * debugging/diagnostics. 3128 */ 3129 m_freem(m0); 3130 return EIO; 3131 } 3132 /* 3133 * Adjust the packet length for the crypto additions 3134 * done during encap and any other bits that the f/w 3135 * will add later on. 3136 */ 3137 cip = k->wk_cipher; 3138 pktlen += cip->ic_header + cip->ic_miclen + cip->ic_trailer; 3139 3140 /* packet header may have moved, reset our local pointer */ 3141 wh = mtod(m0, struct ieee80211_frame *); 3142 } 3143 3144 if (ieee80211_radiotap_active_vap(vap)) { 3145 sc->sc_tx_th.wt_flags = 0; /* XXX */ 3146 if (iswep) 3147 sc->sc_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3148 #if 0 3149 sc->sc_tx_th.wt_rate = ds->DataRate; 3150 #endif 3151 sc->sc_tx_th.wt_txpower = ni->ni_txpower; 3152 sc->sc_tx_th.wt_antenna = sc->sc_txantenna; 3153 3154 ieee80211_radiotap_tx(vap, m0); 3155 } 3156 /* 3157 * Copy up/down the 802.11 header; the firmware requires 3158 * we present a 2-byte payload length followed by a 3159 * 4-address header (w/o QoS), followed (optionally) by 3160 * any WEP/ExtIV header (but only filled in for CCMP). 3161 * We are assured the mbuf has sufficient headroom to 3162 * prepend in-place by the setup of ic_headroom in 3163 * mwl_attach. 3164 */ 3165 if (hdrlen < sizeof(struct mwltxrec)) { 3166 const int space = sizeof(struct mwltxrec) - hdrlen; 3167 if (M_LEADINGSPACE(m0) < space) { 3168 /* NB: should never happen */ 3169 device_printf(sc->sc_dev, 3170 "not enough headroom, need %d found %zd, " 3171 "m_flags 0x%x m_len %d\n", 3172 space, M_LEADINGSPACE(m0), m0->m_flags, m0->m_len); 3173 ieee80211_dump_pkt(ic, 3174 mtod(m0, const uint8_t *), m0->m_len, 0, -1); 3175 m_freem(m0); 3176 sc->sc_stats.mst_tx_noheadroom++; 3177 return EIO; 3178 } 3179 M_PREPEND(m0, space, M_NOWAIT); 3180 } 3181 tr = mtod(m0, struct mwltxrec *); 3182 if (wh != (struct ieee80211_frame *) &tr->wh) 3183 ovbcopy(wh, &tr->wh, hdrlen); 3184 /* 3185 * Note: the "firmware length" is actually the length 3186 * of the fully formed "802.11 payload". That is, it's 3187 * everything except for the 802.11 header. In particular 3188 * this includes all crypto material including the MIC! 3189 */ 3190 tr->fwlen = htole16(pktlen - hdrlen); 3191 3192 /* 3193 * Load the DMA map so any coalescing is done. This 3194 * also calculates the number of descriptors we need. 3195 */ 3196 error = mwl_tx_dmasetup(sc, bf, m0); 3197 if (error != 0) { 3198 /* NB: stat collected in mwl_tx_dmasetup */ 3199 DPRINTF(sc, MWL_DEBUG_XMIT, 3200 "%s: unable to setup dma\n", __func__); 3201 return error; 3202 } 3203 bf->bf_node = ni; /* NB: held reference */ 3204 m0 = bf->bf_m; /* NB: may have changed */ 3205 tr = mtod(m0, struct mwltxrec *); 3206 wh = (struct ieee80211_frame *)&tr->wh; 3207 3208 /* 3209 * Formulate tx descriptor. 3210 */ 3211 ds = bf->bf_desc; 3212 txq = bf->bf_txq; 3213 3214 ds->QosCtrl = qos; /* NB: already little-endian */ 3215 #if MWL_TXDESC == 1 3216 /* 3217 * NB: multiframes should be zero because the descriptors 3218 * are initialized to zero. This should handle the case 3219 * where the driver is built with MWL_TXDESC=1 but we are 3220 * using firmware with multi-segment support. 3221 */ 3222 ds->PktPtr = htole32(bf->bf_segs[0].ds_addr); 3223 ds->PktLen = htole16(bf->bf_segs[0].ds_len); 3224 #else 3225 ds->multiframes = htole32(bf->bf_nseg); 3226 ds->PktLen = htole16(m0->m_pkthdr.len); 3227 for (i = 0; i < bf->bf_nseg; i++) { 3228 ds->PktPtrArray[i] = htole32(bf->bf_segs[i].ds_addr); 3229 ds->PktLenArray[i] = htole16(bf->bf_segs[i].ds_len); 3230 } 3231 #endif 3232 /* NB: pPhysNext, DataRate, and SapPktInfo setup once, don't touch */ 3233 ds->Format = 0; 3234 ds->pad = 0; 3235 ds->ack_wcb_addr = 0; 3236 3237 mn = MWL_NODE(ni); 3238 /* 3239 * Select transmit rate. 3240 */ 3241 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 3242 case IEEE80211_FC0_TYPE_MGT: 3243 sc->sc_stats.mst_tx_mgmt++; 3244 /* fall thru... */ 3245 case IEEE80211_FC0_TYPE_CTL: 3246 /* NB: assign to BE q to avoid bursting */ 3247 ds->TxPriority = MWL_WME_AC_BE; 3248 break; 3249 case IEEE80211_FC0_TYPE_DATA: 3250 if (!ismcast) { 3251 const struct ieee80211_txparam *tp = ni->ni_txparms; 3252 /* 3253 * EAPOL frames get forced to a fixed rate and w/o 3254 * aggregation; otherwise check for any fixed rate 3255 * for the client (may depend on association state). 3256 */ 3257 if (m0->m_flags & M_EAPOL) { 3258 const struct mwl_vap *mvp = MWL_VAP_CONST(vap); 3259 ds->Format = mvp->mv_eapolformat; 3260 ds->pad = htole16( 3261 EAGLE_TXD_FIXED_RATE | EAGLE_TXD_DONT_AGGR); 3262 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) { 3263 /* XXX pre-calculate per node */ 3264 ds->Format = htole16( 3265 mwl_calcformat(tp->ucastrate, ni)); 3266 ds->pad = htole16(EAGLE_TXD_FIXED_RATE); 3267 } 3268 /* NB: EAPOL frames will never have qos set */ 3269 if (qos == 0) 3270 ds->TxPriority = txq->qnum; 3271 #if MWL_MAXBA > 3 3272 else if (mwl_bastream_match(&mn->mn_ba[3], qos)) 3273 ds->TxPriority = mn->mn_ba[3].txq; 3274 #endif 3275 #if MWL_MAXBA > 2 3276 else if (mwl_bastream_match(&mn->mn_ba[2], qos)) 3277 ds->TxPriority = mn->mn_ba[2].txq; 3278 #endif 3279 #if MWL_MAXBA > 1 3280 else if (mwl_bastream_match(&mn->mn_ba[1], qos)) 3281 ds->TxPriority = mn->mn_ba[1].txq; 3282 #endif 3283 #if MWL_MAXBA > 0 3284 else if (mwl_bastream_match(&mn->mn_ba[0], qos)) 3285 ds->TxPriority = mn->mn_ba[0].txq; 3286 #endif 3287 else 3288 ds->TxPriority = txq->qnum; 3289 } else 3290 ds->TxPriority = txq->qnum; 3291 break; 3292 default: 3293 device_printf(sc->sc_dev, "bogus frame type 0x%x (%s)\n", 3294 wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK, __func__); 3295 sc->sc_stats.mst_tx_badframetype++; 3296 m_freem(m0); 3297 return EIO; 3298 } 3299 3300 if (IFF_DUMPPKTS_XMIT(sc)) 3301 ieee80211_dump_pkt(ic, 3302 mtod(m0, const uint8_t *)+sizeof(uint16_t), 3303 m0->m_len - sizeof(uint16_t), ds->DataRate, -1); 3304 3305 MWL_TXQ_LOCK(txq); 3306 ds->Status = htole32(EAGLE_TXD_STATUS_FW_OWNED); 3307 STAILQ_INSERT_TAIL(&txq->active, bf, bf_list); 3308 MWL_TXDESC_SYNC(txq, ds, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 3309 3310 sc->sc_tx_timer = 5; 3311 MWL_TXQ_UNLOCK(txq); 3312 3313 return 0; 3314 } 3315 3316 static __inline int 3317 mwl_cvtlegacyrix(int rix) 3318 { 3319 static const int ieeerates[] = 3320 { 2, 4, 11, 22, 44, 12, 18, 24, 36, 48, 72, 96, 108 }; 3321 return (rix < nitems(ieeerates) ? ieeerates[rix] : 0); 3322 } 3323 3324 /* 3325 * Process completed xmit descriptors from the specified queue. 3326 */ 3327 static int 3328 mwl_tx_processq(struct mwl_softc *sc, struct mwl_txq *txq) 3329 { 3330 #define EAGLE_TXD_STATUS_MCAST \ 3331 (EAGLE_TXD_STATUS_MULTICAST_TX | EAGLE_TXD_STATUS_BROADCAST_TX) 3332 struct ieee80211com *ic = &sc->sc_ic; 3333 struct mwl_txbuf *bf; 3334 struct mwl_txdesc *ds; 3335 struct ieee80211_node *ni; 3336 struct mwl_node *an; 3337 int nreaped; 3338 uint32_t status; 3339 3340 DPRINTF(sc, MWL_DEBUG_TX_PROC, "%s: tx queue %u\n", __func__, txq->qnum); 3341 for (nreaped = 0;; nreaped++) { 3342 MWL_TXQ_LOCK(txq); 3343 bf = STAILQ_FIRST(&txq->active); 3344 if (bf == NULL) { 3345 MWL_TXQ_UNLOCK(txq); 3346 break; 3347 } 3348 ds = bf->bf_desc; 3349 MWL_TXDESC_SYNC(txq, ds, 3350 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 3351 if (ds->Status & htole32(EAGLE_TXD_STATUS_FW_OWNED)) { 3352 MWL_TXQ_UNLOCK(txq); 3353 break; 3354 } 3355 STAILQ_REMOVE_HEAD(&txq->active, bf_list); 3356 MWL_TXQ_UNLOCK(txq); 3357 3358 #ifdef MWL_DEBUG 3359 if (sc->sc_debug & MWL_DEBUG_XMIT_DESC) 3360 mwl_printtxbuf(bf, txq->qnum, nreaped); 3361 #endif 3362 ni = bf->bf_node; 3363 if (ni != NULL) { 3364 an = MWL_NODE(ni); 3365 status = le32toh(ds->Status); 3366 if (status & EAGLE_TXD_STATUS_OK) { 3367 uint16_t Format = le16toh(ds->Format); 3368 uint8_t txant = MS(Format, EAGLE_TXD_ANTENNA); 3369 3370 sc->sc_stats.mst_ant_tx[txant]++; 3371 if (status & EAGLE_TXD_STATUS_OK_RETRY) 3372 sc->sc_stats.mst_tx_retries++; 3373 if (status & EAGLE_TXD_STATUS_OK_MORE_RETRY) 3374 sc->sc_stats.mst_tx_mretries++; 3375 if (txq->qnum >= MWL_WME_AC_VO) 3376 ic->ic_wme.wme_hipri_traffic++; 3377 ni->ni_txrate = MS(Format, EAGLE_TXD_RATE); 3378 if ((Format & EAGLE_TXD_FORMAT_HT) == 0) { 3379 ni->ni_txrate = mwl_cvtlegacyrix( 3380 ni->ni_txrate); 3381 } else 3382 ni->ni_txrate |= IEEE80211_RATE_MCS; 3383 sc->sc_stats.mst_tx_rate = ni->ni_txrate; 3384 } else { 3385 if (status & EAGLE_TXD_STATUS_FAILED_LINK_ERROR) 3386 sc->sc_stats.mst_tx_linkerror++; 3387 if (status & EAGLE_TXD_STATUS_FAILED_XRETRY) 3388 sc->sc_stats.mst_tx_xretries++; 3389 if (status & EAGLE_TXD_STATUS_FAILED_AGING) 3390 sc->sc_stats.mst_tx_aging++; 3391 if (bf->bf_m->m_flags & M_FF) 3392 sc->sc_stats.mst_ff_txerr++; 3393 } 3394 if (bf->bf_m->m_flags & M_TXCB) 3395 /* XXX strip fw len in case header inspected */ 3396 m_adj(bf->bf_m, sizeof(uint16_t)); 3397 ieee80211_tx_complete(ni, bf->bf_m, 3398 (status & EAGLE_TXD_STATUS_OK) == 0); 3399 } else 3400 m_freem(bf->bf_m); 3401 ds->Status = htole32(EAGLE_TXD_STATUS_IDLE); 3402 3403 bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, 3404 BUS_DMASYNC_POSTWRITE); 3405 bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap); 3406 3407 mwl_puttxbuf_tail(txq, bf); 3408 } 3409 return nreaped; 3410 #undef EAGLE_TXD_STATUS_MCAST 3411 } 3412 3413 /* 3414 * Deferred processing of transmit interrupt; special-cased 3415 * for four hardware queues, 0-3. 3416 */ 3417 static void 3418 mwl_tx_proc(void *arg, int npending) 3419 { 3420 struct mwl_softc *sc = arg; 3421 int nreaped; 3422 3423 /* 3424 * Process each active queue. 3425 */ 3426 nreaped = 0; 3427 if (!STAILQ_EMPTY(&sc->sc_txq[0].active)) 3428 nreaped += mwl_tx_processq(sc, &sc->sc_txq[0]); 3429 if (!STAILQ_EMPTY(&sc->sc_txq[1].active)) 3430 nreaped += mwl_tx_processq(sc, &sc->sc_txq[1]); 3431 if (!STAILQ_EMPTY(&sc->sc_txq[2].active)) 3432 nreaped += mwl_tx_processq(sc, &sc->sc_txq[2]); 3433 if (!STAILQ_EMPTY(&sc->sc_txq[3].active)) 3434 nreaped += mwl_tx_processq(sc, &sc->sc_txq[3]); 3435 3436 if (nreaped != 0) { 3437 sc->sc_tx_timer = 0; 3438 if (mbufq_first(&sc->sc_snd) != NULL) { 3439 /* NB: kick fw; the tx thread may have been preempted */ 3440 mwl_hal_txstart(sc->sc_mh, 0); 3441 mwl_start(sc); 3442 } 3443 } 3444 } 3445 3446 static void 3447 mwl_tx_draintxq(struct mwl_softc *sc, struct mwl_txq *txq) 3448 { 3449 struct ieee80211_node *ni; 3450 struct mwl_txbuf *bf; 3451 u_int ix; 3452 3453 /* 3454 * NB: this assumes output has been stopped and 3455 * we do not need to block mwl_tx_tasklet 3456 */ 3457 for (ix = 0;; ix++) { 3458 MWL_TXQ_LOCK(txq); 3459 bf = STAILQ_FIRST(&txq->active); 3460 if (bf == NULL) { 3461 MWL_TXQ_UNLOCK(txq); 3462 break; 3463 } 3464 STAILQ_REMOVE_HEAD(&txq->active, bf_list); 3465 MWL_TXQ_UNLOCK(txq); 3466 #ifdef MWL_DEBUG 3467 if (sc->sc_debug & MWL_DEBUG_RESET) { 3468 struct ieee80211com *ic = &sc->sc_ic; 3469 const struct mwltxrec *tr = 3470 mtod(bf->bf_m, const struct mwltxrec *); 3471 mwl_printtxbuf(bf, txq->qnum, ix); 3472 ieee80211_dump_pkt(ic, (const uint8_t *)&tr->wh, 3473 bf->bf_m->m_len - sizeof(tr->fwlen), 0, -1); 3474 } 3475 #endif /* MWL_DEBUG */ 3476 bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap); 3477 ni = bf->bf_node; 3478 if (ni != NULL) { 3479 /* 3480 * Reclaim node reference. 3481 */ 3482 ieee80211_free_node(ni); 3483 } 3484 m_freem(bf->bf_m); 3485 3486 mwl_puttxbuf_tail(txq, bf); 3487 } 3488 } 3489 3490 /* 3491 * Drain the transmit queues and reclaim resources. 3492 */ 3493 static void 3494 mwl_draintxq(struct mwl_softc *sc) 3495 { 3496 int i; 3497 3498 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 3499 mwl_tx_draintxq(sc, &sc->sc_txq[i]); 3500 sc->sc_tx_timer = 0; 3501 } 3502 3503 #ifdef MWL_DIAGAPI 3504 /* 3505 * Reset the transmit queues to a pristine state after a fw download. 3506 */ 3507 static void 3508 mwl_resettxq(struct mwl_softc *sc) 3509 { 3510 int i; 3511 3512 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 3513 mwl_txq_reset(sc, &sc->sc_txq[i]); 3514 } 3515 #endif /* MWL_DIAGAPI */ 3516 3517 /* 3518 * Clear the transmit queues of any frames submitted for the 3519 * specified vap. This is done when the vap is deleted so we 3520 * don't potentially reference the vap after it is gone. 3521 * Note we cannot remove the frames; we only reclaim the node 3522 * reference. 3523 */ 3524 static void 3525 mwl_cleartxq(struct mwl_softc *sc, struct ieee80211vap *vap) 3526 { 3527 struct mwl_txq *txq; 3528 struct mwl_txbuf *bf; 3529 int i; 3530 3531 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) { 3532 txq = &sc->sc_txq[i]; 3533 MWL_TXQ_LOCK(txq); 3534 STAILQ_FOREACH(bf, &txq->active, bf_list) { 3535 struct ieee80211_node *ni = bf->bf_node; 3536 if (ni != NULL && ni->ni_vap == vap) { 3537 bf->bf_node = NULL; 3538 ieee80211_free_node(ni); 3539 } 3540 } 3541 MWL_TXQ_UNLOCK(txq); 3542 } 3543 } 3544 3545 static int 3546 mwl_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 3547 const uint8_t *frm, const uint8_t *efrm) 3548 { 3549 struct mwl_softc *sc = ni->ni_ic->ic_softc; 3550 const struct ieee80211_action *ia; 3551 3552 ia = (const struct ieee80211_action *) frm; 3553 if (ia->ia_category == IEEE80211_ACTION_CAT_HT && 3554 ia->ia_action == IEEE80211_ACTION_HT_MIMOPWRSAVE) { 3555 const struct ieee80211_action_ht_mimopowersave *mps = 3556 (const struct ieee80211_action_ht_mimopowersave *) ia; 3557 3558 mwl_hal_setmimops(sc->sc_mh, ni->ni_macaddr, 3559 mps->am_control & IEEE80211_A_HT_MIMOPWRSAVE_ENA, 3560 MS(mps->am_control, IEEE80211_A_HT_MIMOPWRSAVE_MODE)); 3561 return 0; 3562 } else 3563 return sc->sc_recv_action(ni, wh, frm, efrm); 3564 } 3565 3566 static int 3567 mwl_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3568 int dialogtoken, int baparamset, int batimeout) 3569 { 3570 struct mwl_softc *sc = ni->ni_ic->ic_softc; 3571 struct ieee80211vap *vap = ni->ni_vap; 3572 struct mwl_node *mn = MWL_NODE(ni); 3573 struct mwl_bastate *bas; 3574 3575 bas = tap->txa_private; 3576 if (bas == NULL) { 3577 const MWL_HAL_BASTREAM *sp; 3578 /* 3579 * Check for a free BA stream slot. 3580 */ 3581 #if MWL_MAXBA > 3 3582 if (mn->mn_ba[3].bastream == NULL) 3583 bas = &mn->mn_ba[3]; 3584 else 3585 #endif 3586 #if MWL_MAXBA > 2 3587 if (mn->mn_ba[2].bastream == NULL) 3588 bas = &mn->mn_ba[2]; 3589 else 3590 #endif 3591 #if MWL_MAXBA > 1 3592 if (mn->mn_ba[1].bastream == NULL) 3593 bas = &mn->mn_ba[1]; 3594 else 3595 #endif 3596 #if MWL_MAXBA > 0 3597 if (mn->mn_ba[0].bastream == NULL) 3598 bas = &mn->mn_ba[0]; 3599 else 3600 #endif 3601 { 3602 /* sta already has max BA streams */ 3603 /* XXX assign BA stream to highest priority tid */ 3604 DPRINTF(sc, MWL_DEBUG_AMPDU, 3605 "%s: already has max bastreams\n", __func__); 3606 sc->sc_stats.mst_ampdu_reject++; 3607 return 0; 3608 } 3609 /* NB: no held reference to ni */ 3610 sp = mwl_hal_bastream_alloc(MWL_VAP(vap)->mv_hvap, 3611 (baparamset & IEEE80211_BAPS_POLICY_IMMEDIATE) != 0, 3612 ni->ni_macaddr, tap->txa_tid, ni->ni_htparam, 3613 ni, tap); 3614 if (sp == NULL) { 3615 /* 3616 * No available stream, return 0 so no 3617 * a-mpdu aggregation will be done. 3618 */ 3619 DPRINTF(sc, MWL_DEBUG_AMPDU, 3620 "%s: no bastream available\n", __func__); 3621 sc->sc_stats.mst_ampdu_nostream++; 3622 return 0; 3623 } 3624 DPRINTF(sc, MWL_DEBUG_AMPDU, "%s: alloc bastream %p\n", 3625 __func__, sp); 3626 /* NB: qos is left zero so we won't match in mwl_tx_start */ 3627 bas->bastream = sp; 3628 tap->txa_private = bas; 3629 } 3630 /* fetch current seq# from the firmware; if available */ 3631 if (mwl_hal_bastream_get_seqno(sc->sc_mh, bas->bastream, 3632 vap->iv_opmode == IEEE80211_M_STA ? vap->iv_myaddr : ni->ni_macaddr, 3633 &tap->txa_start) != 0) 3634 tap->txa_start = 0; 3635 return sc->sc_addba_request(ni, tap, dialogtoken, baparamset, batimeout); 3636 } 3637 3638 static int 3639 mwl_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3640 int code, int baparamset, int batimeout) 3641 { 3642 struct mwl_softc *sc = ni->ni_ic->ic_softc; 3643 struct mwl_bastate *bas; 3644 3645 bas = tap->txa_private; 3646 if (bas == NULL) { 3647 /* XXX should not happen */ 3648 DPRINTF(sc, MWL_DEBUG_AMPDU, 3649 "%s: no BA stream allocated, TID %d\n", 3650 __func__, tap->txa_tid); 3651 sc->sc_stats.mst_addba_nostream++; 3652 return 0; 3653 } 3654 if (code == IEEE80211_STATUS_SUCCESS) { 3655 struct ieee80211vap *vap = ni->ni_vap; 3656 int bufsiz, error; 3657 3658 /* 3659 * Tell the firmware to setup the BA stream; 3660 * we know resources are available because we 3661 * pre-allocated one before forming the request. 3662 */ 3663 bufsiz = MS(baparamset, IEEE80211_BAPS_BUFSIZ); 3664 if (bufsiz == 0) 3665 bufsiz = IEEE80211_AGGR_BAWMAX; 3666 error = mwl_hal_bastream_create(MWL_VAP(vap)->mv_hvap, 3667 bas->bastream, bufsiz, bufsiz, tap->txa_start); 3668 if (error != 0) { 3669 /* 3670 * Setup failed, return immediately so no a-mpdu 3671 * aggregation will be done. 3672 */ 3673 mwl_hal_bastream_destroy(sc->sc_mh, bas->bastream); 3674 mwl_bastream_free(bas); 3675 tap->txa_private = NULL; 3676 3677 DPRINTF(sc, MWL_DEBUG_AMPDU, 3678 "%s: create failed, error %d, bufsiz %d TID %d " 3679 "htparam 0x%x\n", __func__, error, bufsiz, 3680 tap->txa_tid, ni->ni_htparam); 3681 sc->sc_stats.mst_bacreate_failed++; 3682 return 0; 3683 } 3684 /* NB: cache txq to avoid ptr indirect */ 3685 mwl_bastream_setup(bas, tap->txa_tid, bas->bastream->txq); 3686 DPRINTF(sc, MWL_DEBUG_AMPDU, 3687 "%s: bastream %p assigned to txq %d TID %d bufsiz %d " 3688 "htparam 0x%x\n", __func__, bas->bastream, 3689 bas->txq, tap->txa_tid, bufsiz, ni->ni_htparam); 3690 } else { 3691 /* 3692 * Other side NAK'd us; return the resources. 3693 */ 3694 DPRINTF(sc, MWL_DEBUG_AMPDU, 3695 "%s: request failed with code %d, destroy bastream %p\n", 3696 __func__, code, bas->bastream); 3697 mwl_hal_bastream_destroy(sc->sc_mh, bas->bastream); 3698 mwl_bastream_free(bas); 3699 tap->txa_private = NULL; 3700 } 3701 /* NB: firmware sends BAR so we don't need to */ 3702 return sc->sc_addba_response(ni, tap, code, baparamset, batimeout); 3703 } 3704 3705 static void 3706 mwl_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3707 { 3708 struct mwl_softc *sc = ni->ni_ic->ic_softc; 3709 struct mwl_bastate *bas; 3710 3711 bas = tap->txa_private; 3712 if (bas != NULL) { 3713 DPRINTF(sc, MWL_DEBUG_AMPDU, "%s: destroy bastream %p\n", 3714 __func__, bas->bastream); 3715 mwl_hal_bastream_destroy(sc->sc_mh, bas->bastream); 3716 mwl_bastream_free(bas); 3717 tap->txa_private = NULL; 3718 } 3719 sc->sc_addba_stop(ni, tap); 3720 } 3721 3722 /* 3723 * Setup the rx data structures. This should only be 3724 * done once or we may get out of sync with the firmware. 3725 */ 3726 static int 3727 mwl_startrecv(struct mwl_softc *sc) 3728 { 3729 if (!sc->sc_recvsetup) { 3730 struct mwl_rxbuf *bf, *prev; 3731 struct mwl_rxdesc *ds; 3732 3733 prev = NULL; 3734 STAILQ_FOREACH(bf, &sc->sc_rxbuf, bf_list) { 3735 int error = mwl_rxbuf_init(sc, bf); 3736 if (error != 0) { 3737 DPRINTF(sc, MWL_DEBUG_RECV, 3738 "%s: mwl_rxbuf_init failed %d\n", 3739 __func__, error); 3740 return error; 3741 } 3742 if (prev != NULL) { 3743 ds = prev->bf_desc; 3744 ds->pPhysNext = htole32(bf->bf_daddr); 3745 } 3746 prev = bf; 3747 } 3748 if (prev != NULL) { 3749 ds = prev->bf_desc; 3750 ds->pPhysNext = 3751 htole32(STAILQ_FIRST(&sc->sc_rxbuf)->bf_daddr); 3752 } 3753 sc->sc_recvsetup = 1; 3754 } 3755 mwl_mode_init(sc); /* set filters, etc. */ 3756 return 0; 3757 } 3758 3759 static MWL_HAL_APMODE 3760 mwl_getapmode(const struct ieee80211vap *vap, struct ieee80211_channel *chan) 3761 { 3762 MWL_HAL_APMODE mode; 3763 3764 if (IEEE80211_IS_CHAN_HT(chan)) { 3765 if (vap->iv_flags_ht & IEEE80211_FHT_PUREN) 3766 mode = AP_MODE_N_ONLY; 3767 else if (IEEE80211_IS_CHAN_5GHZ(chan)) 3768 mode = AP_MODE_AandN; 3769 else if (vap->iv_flags & IEEE80211_F_PUREG) 3770 mode = AP_MODE_GandN; 3771 else 3772 mode = AP_MODE_BandGandN; 3773 } else if (IEEE80211_IS_CHAN_ANYG(chan)) { 3774 if (vap->iv_flags & IEEE80211_F_PUREG) 3775 mode = AP_MODE_G_ONLY; 3776 else 3777 mode = AP_MODE_MIXED; 3778 } else if (IEEE80211_IS_CHAN_B(chan)) 3779 mode = AP_MODE_B_ONLY; 3780 else if (IEEE80211_IS_CHAN_A(chan)) 3781 mode = AP_MODE_A_ONLY; 3782 else 3783 mode = AP_MODE_MIXED; /* XXX should not happen? */ 3784 return mode; 3785 } 3786 3787 static int 3788 mwl_setapmode(struct ieee80211vap *vap, struct ieee80211_channel *chan) 3789 { 3790 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 3791 return mwl_hal_setapmode(hvap, mwl_getapmode(vap, chan)); 3792 } 3793 3794 /* 3795 * Set/change channels. 3796 */ 3797 static int 3798 mwl_chan_set(struct mwl_softc *sc, struct ieee80211_channel *chan) 3799 { 3800 struct mwl_hal *mh = sc->sc_mh; 3801 struct ieee80211com *ic = &sc->sc_ic; 3802 MWL_HAL_CHANNEL hchan; 3803 int maxtxpow; 3804 3805 DPRINTF(sc, MWL_DEBUG_RESET, "%s: chan %u MHz/flags 0x%x\n", 3806 __func__, chan->ic_freq, chan->ic_flags); 3807 3808 /* 3809 * Convert to a HAL channel description with 3810 * the flags constrained to reflect the current 3811 * operating mode. 3812 */ 3813 mwl_mapchan(&hchan, chan); 3814 mwl_hal_intrset(mh, 0); /* disable interrupts */ 3815 #if 0 3816 mwl_draintxq(sc); /* clear pending tx frames */ 3817 #endif 3818 mwl_hal_setchannel(mh, &hchan); 3819 /* 3820 * Tx power is cap'd by the regulatory setting and 3821 * possibly a user-set limit. We pass the min of 3822 * these to the hal to apply them to the cal data 3823 * for this channel. 3824 * XXX min bound? 3825 */ 3826 maxtxpow = 2*chan->ic_maxregpower; 3827 if (maxtxpow > ic->ic_txpowlimit) 3828 maxtxpow = ic->ic_txpowlimit; 3829 mwl_hal_settxpower(mh, &hchan, maxtxpow / 2); 3830 /* NB: potentially change mcast/mgt rates */ 3831 mwl_setcurchanrates(sc); 3832 3833 /* 3834 * Update internal state. 3835 */ 3836 sc->sc_tx_th.wt_chan_freq = htole16(chan->ic_freq); 3837 sc->sc_rx_th.wr_chan_freq = htole16(chan->ic_freq); 3838 if (IEEE80211_IS_CHAN_A(chan)) { 3839 sc->sc_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_A); 3840 sc->sc_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_A); 3841 } else if (IEEE80211_IS_CHAN_ANYG(chan)) { 3842 sc->sc_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_G); 3843 sc->sc_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_G); 3844 } else { 3845 sc->sc_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_B); 3846 sc->sc_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_B); 3847 } 3848 sc->sc_curchan = hchan; 3849 mwl_hal_intrset(mh, sc->sc_imask); 3850 3851 return 0; 3852 } 3853 3854 static void 3855 mwl_scan_start(struct ieee80211com *ic) 3856 { 3857 struct mwl_softc *sc = ic->ic_softc; 3858 3859 DPRINTF(sc, MWL_DEBUG_STATE, "%s\n", __func__); 3860 } 3861 3862 static void 3863 mwl_scan_end(struct ieee80211com *ic) 3864 { 3865 struct mwl_softc *sc = ic->ic_softc; 3866 3867 DPRINTF(sc, MWL_DEBUG_STATE, "%s\n", __func__); 3868 } 3869 3870 static void 3871 mwl_set_channel(struct ieee80211com *ic) 3872 { 3873 struct mwl_softc *sc = ic->ic_softc; 3874 3875 (void) mwl_chan_set(sc, ic->ic_curchan); 3876 } 3877 3878 /* 3879 * Handle a channel switch request. We inform the firmware 3880 * and mark the global state to suppress various actions. 3881 * NB: we issue only one request to the fw; we may be called 3882 * multiple times if there are multiple vap's. 3883 */ 3884 static void 3885 mwl_startcsa(struct ieee80211vap *vap) 3886 { 3887 struct ieee80211com *ic = vap->iv_ic; 3888 struct mwl_softc *sc = ic->ic_softc; 3889 MWL_HAL_CHANNEL hchan; 3890 3891 if (sc->sc_csapending) 3892 return; 3893 3894 mwl_mapchan(&hchan, ic->ic_csa_newchan); 3895 /* 1 =>'s quiet channel */ 3896 mwl_hal_setchannelswitchie(sc->sc_mh, &hchan, 1, ic->ic_csa_count); 3897 sc->sc_csapending = 1; 3898 } 3899 3900 /* 3901 * Plumb any static WEP key for the station. This is 3902 * necessary as we must propagate the key from the 3903 * global key table of the vap to each sta db entry. 3904 */ 3905 static void 3906 mwl_setanywepkey(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 3907 { 3908 if ((vap->iv_flags & (IEEE80211_F_PRIVACY|IEEE80211_F_WPA)) == 3909 IEEE80211_F_PRIVACY && 3910 vap->iv_def_txkey != IEEE80211_KEYIX_NONE && 3911 vap->iv_nw_keys[vap->iv_def_txkey].wk_keyix != IEEE80211_KEYIX_NONE) 3912 (void) _mwl_key_set(vap, &vap->iv_nw_keys[vap->iv_def_txkey], 3913 mac); 3914 } 3915 3916 static int 3917 mwl_peerstadb(struct ieee80211_node *ni, int aid, int staid, MWL_HAL_PEERINFO *pi) 3918 { 3919 #define WME(ie) ((const struct ieee80211_wme_info *) ie) 3920 struct ieee80211vap *vap = ni->ni_vap; 3921 struct mwl_hal_vap *hvap; 3922 int error; 3923 3924 if (vap->iv_opmode == IEEE80211_M_WDS) { 3925 /* 3926 * WDS vap's do not have a f/w vap; instead they piggyback 3927 * on an AP vap and we must install the sta db entry and 3928 * crypto state using that AP's handle (the WDS vap has none). 3929 */ 3930 hvap = MWL_VAP(vap)->mv_ap_hvap; 3931 } else 3932 hvap = MWL_VAP(vap)->mv_hvap; 3933 error = mwl_hal_newstation(hvap, ni->ni_macaddr, 3934 aid, staid, pi, 3935 ni->ni_flags & (IEEE80211_NODE_QOS | IEEE80211_NODE_HT), 3936 ni->ni_ies.wme_ie != NULL ? WME(ni->ni_ies.wme_ie)->wme_info : 0); 3937 if (error == 0) { 3938 /* 3939 * Setup security for this station. For sta mode this is 3940 * needed even though do the same thing on transition to 3941 * AUTH state because the call to mwl_hal_newstation 3942 * clobbers the crypto state we setup. 3943 */ 3944 mwl_setanywepkey(vap, ni->ni_macaddr); 3945 } 3946 return error; 3947 #undef WME 3948 } 3949 3950 static void 3951 mwl_setglobalkeys(struct ieee80211vap *vap) 3952 { 3953 struct ieee80211_key *wk; 3954 3955 wk = &vap->iv_nw_keys[0]; 3956 for (; wk < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; wk++) 3957 if (wk->wk_keyix != IEEE80211_KEYIX_NONE) 3958 (void) _mwl_key_set(vap, wk, vap->iv_myaddr); 3959 } 3960 3961 /* 3962 * Convert a legacy rate set to a firmware bitmask. 3963 */ 3964 static uint32_t 3965 get_rate_bitmap(const struct ieee80211_rateset *rs) 3966 { 3967 uint32_t rates; 3968 int i; 3969 3970 rates = 0; 3971 for (i = 0; i < rs->rs_nrates; i++) 3972 switch (rs->rs_rates[i] & IEEE80211_RATE_VAL) { 3973 case 2: rates |= 0x001; break; 3974 case 4: rates |= 0x002; break; 3975 case 11: rates |= 0x004; break; 3976 case 22: rates |= 0x008; break; 3977 case 44: rates |= 0x010; break; 3978 case 12: rates |= 0x020; break; 3979 case 18: rates |= 0x040; break; 3980 case 24: rates |= 0x080; break; 3981 case 36: rates |= 0x100; break; 3982 case 48: rates |= 0x200; break; 3983 case 72: rates |= 0x400; break; 3984 case 96: rates |= 0x800; break; 3985 case 108: rates |= 0x1000; break; 3986 } 3987 return rates; 3988 } 3989 3990 /* 3991 * Construct an HT firmware bitmask from an HT rate set. 3992 */ 3993 static uint32_t 3994 get_htrate_bitmap(const struct ieee80211_htrateset *rs) 3995 { 3996 uint32_t rates; 3997 int i; 3998 3999 rates = 0; 4000 for (i = 0; i < rs->rs_nrates; i++) { 4001 if (rs->rs_rates[i] < 16) 4002 rates |= 1<<rs->rs_rates[i]; 4003 } 4004 return rates; 4005 } 4006 4007 /* 4008 * Craft station database entry for station. 4009 * NB: use host byte order here, the hal handles byte swapping. 4010 */ 4011 static MWL_HAL_PEERINFO * 4012 mkpeerinfo(MWL_HAL_PEERINFO *pi, const struct ieee80211_node *ni) 4013 { 4014 const struct ieee80211vap *vap = ni->ni_vap; 4015 4016 memset(pi, 0, sizeof(*pi)); 4017 pi->LegacyRateBitMap = get_rate_bitmap(&ni->ni_rates); 4018 pi->CapInfo = ni->ni_capinfo; 4019 if (ni->ni_flags & IEEE80211_NODE_HT) { 4020 /* HT capabilities, etc */ 4021 pi->HTCapabilitiesInfo = ni->ni_htcap; 4022 /* XXX pi.HTCapabilitiesInfo */ 4023 pi->MacHTParamInfo = ni->ni_htparam; 4024 pi->HTRateBitMap = get_htrate_bitmap(&ni->ni_htrates); 4025 pi->AddHtInfo.ControlChan = ni->ni_htctlchan; 4026 pi->AddHtInfo.AddChan = ni->ni_ht2ndchan; 4027 pi->AddHtInfo.OpMode = ni->ni_htopmode; 4028 pi->AddHtInfo.stbc = ni->ni_htstbc; 4029 4030 /* constrain according to local configuration */ 4031 if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40) == 0) 4032 pi->HTCapabilitiesInfo &= ~IEEE80211_HTCAP_SHORTGI40; 4033 if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20) == 0) 4034 pi->HTCapabilitiesInfo &= ~IEEE80211_HTCAP_SHORTGI20; 4035 if (ni->ni_chw != 40) 4036 pi->HTCapabilitiesInfo &= ~IEEE80211_HTCAP_CHWIDTH40; 4037 } 4038 return pi; 4039 } 4040 4041 /* 4042 * Re-create the local sta db entry for a vap to ensure 4043 * up to date WME state is pushed to the firmware. Because 4044 * this resets crypto state this must be followed by a 4045 * reload of any keys in the global key table. 4046 */ 4047 static int 4048 mwl_localstadb(struct ieee80211vap *vap) 4049 { 4050 #define WME(ie) ((const struct ieee80211_wme_info *) ie) 4051 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 4052 struct ieee80211_node *bss; 4053 MWL_HAL_PEERINFO pi; 4054 int error; 4055 4056 switch (vap->iv_opmode) { 4057 case IEEE80211_M_STA: 4058 bss = vap->iv_bss; 4059 error = mwl_hal_newstation(hvap, vap->iv_myaddr, 0, 0, 4060 vap->iv_state == IEEE80211_S_RUN ? 4061 mkpeerinfo(&pi, bss) : NULL, 4062 (bss->ni_flags & (IEEE80211_NODE_QOS | IEEE80211_NODE_HT)), 4063 bss->ni_ies.wme_ie != NULL ? 4064 WME(bss->ni_ies.wme_ie)->wme_info : 0); 4065 if (error == 0) 4066 mwl_setglobalkeys(vap); 4067 break; 4068 case IEEE80211_M_HOSTAP: 4069 case IEEE80211_M_MBSS: 4070 error = mwl_hal_newstation(hvap, vap->iv_myaddr, 4071 0, 0, NULL, vap->iv_flags & IEEE80211_F_WME, 0); 4072 if (error == 0) 4073 mwl_setglobalkeys(vap); 4074 break; 4075 default: 4076 error = 0; 4077 break; 4078 } 4079 return error; 4080 #undef WME 4081 } 4082 4083 static int 4084 mwl_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 4085 { 4086 struct mwl_vap *mvp = MWL_VAP(vap); 4087 struct mwl_hal_vap *hvap = mvp->mv_hvap; 4088 struct ieee80211com *ic = vap->iv_ic; 4089 struct ieee80211_node *ni = NULL; 4090 struct mwl_softc *sc = ic->ic_softc; 4091 struct mwl_hal *mh = sc->sc_mh; 4092 enum ieee80211_state ostate = vap->iv_state; 4093 int error; 4094 4095 DPRINTF(sc, MWL_DEBUG_STATE, "%s: %s: %s -> %s\n", 4096 vap->iv_ifp->if_xname, __func__, 4097 ieee80211_state_name[ostate], ieee80211_state_name[nstate]); 4098 4099 callout_stop(&sc->sc_timer); 4100 /* 4101 * Clear current radar detection state. 4102 */ 4103 if (ostate == IEEE80211_S_CAC) { 4104 /* stop quiet mode radar detection */ 4105 mwl_hal_setradardetection(mh, DR_CHK_CHANNEL_AVAILABLE_STOP); 4106 } else if (sc->sc_radarena) { 4107 /* stop in-service radar detection */ 4108 mwl_hal_setradardetection(mh, DR_DFS_DISABLE); 4109 sc->sc_radarena = 0; 4110 } 4111 /* 4112 * Carry out per-state actions before doing net80211 work. 4113 */ 4114 if (nstate == IEEE80211_S_INIT) { 4115 /* NB: only ap+sta vap's have a fw entity */ 4116 if (hvap != NULL) 4117 mwl_hal_stop(hvap); 4118 } else if (nstate == IEEE80211_S_SCAN) { 4119 mwl_hal_start(hvap); 4120 /* NB: this disables beacon frames */ 4121 mwl_hal_setinframode(hvap); 4122 } else if (nstate == IEEE80211_S_AUTH) { 4123 /* 4124 * Must create a sta db entry in case a WEP key needs to 4125 * be plumbed. This entry will be overwritten if we 4126 * associate; otherwise it will be reclaimed on node free. 4127 */ 4128 ni = vap->iv_bss; 4129 MWL_NODE(ni)->mn_hvap = hvap; 4130 (void) mwl_peerstadb(ni, 0, 0, NULL); 4131 } else if (nstate == IEEE80211_S_CSA) { 4132 /* XXX move to below? */ 4133 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 4134 vap->iv_opmode == IEEE80211_M_MBSS) 4135 mwl_startcsa(vap); 4136 } else if (nstate == IEEE80211_S_CAC) { 4137 /* XXX move to below? */ 4138 /* stop ap xmit and enable quiet mode radar detection */ 4139 mwl_hal_setradardetection(mh, DR_CHK_CHANNEL_AVAILABLE_START); 4140 } 4141 4142 /* 4143 * Invoke the parent method to do net80211 work. 4144 */ 4145 error = mvp->mv_newstate(vap, nstate, arg); 4146 4147 /* 4148 * Carry out work that must be done after net80211 runs; 4149 * this work requires up to date state (e.g. iv_bss). 4150 */ 4151 if (error == 0 && nstate == IEEE80211_S_RUN) { 4152 /* NB: collect bss node again, it may have changed */ 4153 ni = vap->iv_bss; 4154 4155 DPRINTF(sc, MWL_DEBUG_STATE, 4156 "%s: %s(RUN): iv_flags 0x%08x bintvl %d bssid %s " 4157 "capinfo 0x%04x chan %d\n", 4158 vap->iv_ifp->if_xname, __func__, vap->iv_flags, 4159 ni->ni_intval, ether_sprintf(ni->ni_bssid), ni->ni_capinfo, 4160 ieee80211_chan2ieee(ic, ic->ic_curchan)); 4161 4162 /* 4163 * Recreate local sta db entry to update WME/HT state. 4164 */ 4165 mwl_localstadb(vap); 4166 switch (vap->iv_opmode) { 4167 case IEEE80211_M_HOSTAP: 4168 case IEEE80211_M_MBSS: 4169 if (ostate == IEEE80211_S_CAC) { 4170 /* enable in-service radar detection */ 4171 mwl_hal_setradardetection(mh, 4172 DR_IN_SERVICE_MONITOR_START); 4173 sc->sc_radarena = 1; 4174 } 4175 /* 4176 * Allocate and setup the beacon frame 4177 * (and related state). 4178 */ 4179 error = mwl_reset_vap(vap, IEEE80211_S_RUN); 4180 if (error != 0) { 4181 DPRINTF(sc, MWL_DEBUG_STATE, 4182 "%s: beacon setup failed, error %d\n", 4183 __func__, error); 4184 goto bad; 4185 } 4186 /* NB: must be after setting up beacon */ 4187 mwl_hal_start(hvap); 4188 break; 4189 case IEEE80211_M_STA: 4190 DPRINTF(sc, MWL_DEBUG_STATE, "%s: %s: aid 0x%x\n", 4191 vap->iv_ifp->if_xname, __func__, ni->ni_associd); 4192 /* 4193 * Set state now that we're associated. 4194 */ 4195 mwl_hal_setassocid(hvap, ni->ni_bssid, ni->ni_associd); 4196 mwl_setrates(vap); 4197 mwl_hal_setrtsthreshold(hvap, vap->iv_rtsthreshold); 4198 if ((vap->iv_flags & IEEE80211_F_DWDS) && 4199 sc->sc_ndwdsvaps++ == 0) 4200 mwl_hal_setdwds(mh, 1); 4201 break; 4202 case IEEE80211_M_WDS: 4203 DPRINTF(sc, MWL_DEBUG_STATE, "%s: %s: bssid %s\n", 4204 vap->iv_ifp->if_xname, __func__, 4205 ether_sprintf(ni->ni_bssid)); 4206 mwl_seteapolformat(vap); 4207 break; 4208 default: 4209 break; 4210 } 4211 /* 4212 * Set CS mode according to operating channel; 4213 * this mostly an optimization for 5GHz. 4214 * 4215 * NB: must follow mwl_hal_start which resets csmode 4216 */ 4217 if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 4218 mwl_hal_setcsmode(mh, CSMODE_AGGRESSIVE); 4219 else 4220 mwl_hal_setcsmode(mh, CSMODE_AUTO_ENA); 4221 /* 4222 * Start timer to prod firmware. 4223 */ 4224 if (sc->sc_ageinterval != 0) 4225 callout_reset(&sc->sc_timer, sc->sc_ageinterval*hz, 4226 mwl_agestations, sc); 4227 } else if (nstate == IEEE80211_S_SLEEP) { 4228 /* XXX set chip in power save */ 4229 } else if ((vap->iv_flags & IEEE80211_F_DWDS) && 4230 --sc->sc_ndwdsvaps == 0) 4231 mwl_hal_setdwds(mh, 0); 4232 bad: 4233 return error; 4234 } 4235 4236 /* 4237 * Manage station id's; these are separate from AID's 4238 * as AID's may have values out of the range of possible 4239 * station id's acceptable to the firmware. 4240 */ 4241 static int 4242 allocstaid(struct mwl_softc *sc, int aid) 4243 { 4244 int staid; 4245 4246 if (!(0 < aid && aid < MWL_MAXSTAID) || isset(sc->sc_staid, aid)) { 4247 /* NB: don't use 0 */ 4248 for (staid = 1; staid < MWL_MAXSTAID; staid++) 4249 if (isclr(sc->sc_staid, staid)) 4250 break; 4251 } else 4252 staid = aid; 4253 setbit(sc->sc_staid, staid); 4254 return staid; 4255 } 4256 4257 static void 4258 delstaid(struct mwl_softc *sc, int staid) 4259 { 4260 clrbit(sc->sc_staid, staid); 4261 } 4262 4263 /* 4264 * Setup driver-specific state for a newly associated node. 4265 * Note that we're called also on a re-associate, the isnew 4266 * param tells us if this is the first time or not. 4267 */ 4268 static void 4269 mwl_newassoc(struct ieee80211_node *ni, int isnew) 4270 { 4271 struct ieee80211vap *vap = ni->ni_vap; 4272 struct mwl_softc *sc = vap->iv_ic->ic_softc; 4273 struct mwl_node *mn = MWL_NODE(ni); 4274 MWL_HAL_PEERINFO pi; 4275 uint16_t aid; 4276 int error; 4277 4278 aid = IEEE80211_AID(ni->ni_associd); 4279 if (isnew) { 4280 mn->mn_staid = allocstaid(sc, aid); 4281 mn->mn_hvap = MWL_VAP(vap)->mv_hvap; 4282 } else { 4283 mn = MWL_NODE(ni); 4284 /* XXX reset BA stream? */ 4285 } 4286 DPRINTF(sc, MWL_DEBUG_NODE, "%s: mac %s isnew %d aid %d staid %d\n", 4287 __func__, ether_sprintf(ni->ni_macaddr), isnew, aid, mn->mn_staid); 4288 error = mwl_peerstadb(ni, aid, mn->mn_staid, mkpeerinfo(&pi, ni)); 4289 if (error != 0) { 4290 DPRINTF(sc, MWL_DEBUG_NODE, 4291 "%s: error %d creating sta db entry\n", 4292 __func__, error); 4293 /* XXX how to deal with error? */ 4294 } 4295 } 4296 4297 /* 4298 * Periodically poke the firmware to age out station state 4299 * (power save queues, pending tx aggregates). 4300 */ 4301 static void 4302 mwl_agestations(void *arg) 4303 { 4304 struct mwl_softc *sc = arg; 4305 4306 mwl_hal_setkeepalive(sc->sc_mh); 4307 if (sc->sc_ageinterval != 0) /* NB: catch dynamic changes */ 4308 callout_schedule(&sc->sc_timer, sc->sc_ageinterval*hz); 4309 } 4310 4311 static const struct mwl_hal_channel * 4312 findhalchannel(const MWL_HAL_CHANNELINFO *ci, int ieee) 4313 { 4314 int i; 4315 4316 for (i = 0; i < ci->nchannels; i++) { 4317 const struct mwl_hal_channel *hc = &ci->channels[i]; 4318 if (hc->ieee == ieee) 4319 return hc; 4320 } 4321 return NULL; 4322 } 4323 4324 static int 4325 mwl_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd, 4326 int nchan, struct ieee80211_channel chans[]) 4327 { 4328 struct mwl_softc *sc = ic->ic_softc; 4329 struct mwl_hal *mh = sc->sc_mh; 4330 const MWL_HAL_CHANNELINFO *ci; 4331 int i; 4332 4333 for (i = 0; i < nchan; i++) { 4334 struct ieee80211_channel *c = &chans[i]; 4335 const struct mwl_hal_channel *hc; 4336 4337 if (IEEE80211_IS_CHAN_2GHZ(c)) { 4338 mwl_hal_getchannelinfo(mh, MWL_FREQ_BAND_2DOT4GHZ, 4339 IEEE80211_IS_CHAN_HT40(c) ? 4340 MWL_CH_40_MHz_WIDTH : MWL_CH_20_MHz_WIDTH, &ci); 4341 } else if (IEEE80211_IS_CHAN_5GHZ(c)) { 4342 mwl_hal_getchannelinfo(mh, MWL_FREQ_BAND_5GHZ, 4343 IEEE80211_IS_CHAN_HT40(c) ? 4344 MWL_CH_40_MHz_WIDTH : MWL_CH_20_MHz_WIDTH, &ci); 4345 } else { 4346 device_printf(sc->sc_dev, 4347 "%s: channel %u freq %u/0x%x not 2.4/5GHz\n", 4348 __func__, c->ic_ieee, c->ic_freq, c->ic_flags); 4349 return EINVAL; 4350 } 4351 /* 4352 * Verify channel has cal data and cap tx power. 4353 */ 4354 hc = findhalchannel(ci, c->ic_ieee); 4355 if (hc != NULL) { 4356 if (c->ic_maxpower > 2*hc->maxTxPow) 4357 c->ic_maxpower = 2*hc->maxTxPow; 4358 goto next; 4359 } 4360 if (IEEE80211_IS_CHAN_HT40(c)) { 4361 /* 4362 * Look for the extension channel since the 4363 * hal table only has the primary channel. 4364 */ 4365 hc = findhalchannel(ci, c->ic_extieee); 4366 if (hc != NULL) { 4367 if (c->ic_maxpower > 2*hc->maxTxPow) 4368 c->ic_maxpower = 2*hc->maxTxPow; 4369 goto next; 4370 } 4371 } 4372 device_printf(sc->sc_dev, 4373 "%s: no cal data for channel %u ext %u freq %u/0x%x\n", 4374 __func__, c->ic_ieee, c->ic_extieee, 4375 c->ic_freq, c->ic_flags); 4376 return EINVAL; 4377 next: 4378 ; 4379 } 4380 return 0; 4381 } 4382 4383 #define IEEE80211_CHAN_HTG (IEEE80211_CHAN_HT|IEEE80211_CHAN_G) 4384 #define IEEE80211_CHAN_HTA (IEEE80211_CHAN_HT|IEEE80211_CHAN_A) 4385 4386 static void 4387 addht40channels(struct ieee80211_channel chans[], int maxchans, int *nchans, 4388 const MWL_HAL_CHANNELINFO *ci, int flags) 4389 { 4390 int i, error; 4391 4392 for (i = 0; i < ci->nchannels; i++) { 4393 const struct mwl_hal_channel *hc = &ci->channels[i]; 4394 4395 error = ieee80211_add_channel_ht40(chans, maxchans, nchans, 4396 hc->ieee, hc->maxTxPow, flags); 4397 if (error != 0 && error != ENOENT) 4398 break; 4399 } 4400 } 4401 4402 static void 4403 addchannels(struct ieee80211_channel chans[], int maxchans, int *nchans, 4404 const MWL_HAL_CHANNELINFO *ci, const uint8_t bands[]) 4405 { 4406 int i, error; 4407 4408 error = 0; 4409 for (i = 0; i < ci->nchannels && error == 0; i++) { 4410 const struct mwl_hal_channel *hc = &ci->channels[i]; 4411 4412 error = ieee80211_add_channel(chans, maxchans, nchans, 4413 hc->ieee, hc->freq, hc->maxTxPow, 0, bands); 4414 } 4415 } 4416 4417 static void 4418 getchannels(struct mwl_softc *sc, int maxchans, int *nchans, 4419 struct ieee80211_channel chans[]) 4420 { 4421 const MWL_HAL_CHANNELINFO *ci; 4422 uint8_t bands[IEEE80211_MODE_BYTES]; 4423 4424 /* 4425 * Use the channel info from the hal to craft the 4426 * channel list. Note that we pass back an unsorted 4427 * list; the caller is required to sort it for us 4428 * (if desired). 4429 */ 4430 *nchans = 0; 4431 if (mwl_hal_getchannelinfo(sc->sc_mh, 4432 MWL_FREQ_BAND_2DOT4GHZ, MWL_CH_20_MHz_WIDTH, &ci) == 0) { 4433 memset(bands, 0, sizeof(bands)); 4434 setbit(bands, IEEE80211_MODE_11B); 4435 setbit(bands, IEEE80211_MODE_11G); 4436 setbit(bands, IEEE80211_MODE_11NG); 4437 addchannels(chans, maxchans, nchans, ci, bands); 4438 } 4439 if (mwl_hal_getchannelinfo(sc->sc_mh, 4440 MWL_FREQ_BAND_5GHZ, MWL_CH_20_MHz_WIDTH, &ci) == 0) { 4441 memset(bands, 0, sizeof(bands)); 4442 setbit(bands, IEEE80211_MODE_11A); 4443 setbit(bands, IEEE80211_MODE_11NA); 4444 addchannels(chans, maxchans, nchans, ci, bands); 4445 } 4446 if (mwl_hal_getchannelinfo(sc->sc_mh, 4447 MWL_FREQ_BAND_2DOT4GHZ, MWL_CH_40_MHz_WIDTH, &ci) == 0) 4448 addht40channels(chans, maxchans, nchans, ci, IEEE80211_CHAN_HTG); 4449 if (mwl_hal_getchannelinfo(sc->sc_mh, 4450 MWL_FREQ_BAND_5GHZ, MWL_CH_40_MHz_WIDTH, &ci) == 0) 4451 addht40channels(chans, maxchans, nchans, ci, IEEE80211_CHAN_HTA); 4452 } 4453 4454 static void 4455 mwl_getradiocaps(struct ieee80211com *ic, 4456 int maxchans, int *nchans, struct ieee80211_channel chans[]) 4457 { 4458 struct mwl_softc *sc = ic->ic_softc; 4459 4460 getchannels(sc, maxchans, nchans, chans); 4461 } 4462 4463 static int 4464 mwl_getchannels(struct mwl_softc *sc) 4465 { 4466 struct ieee80211com *ic = &sc->sc_ic; 4467 4468 /* 4469 * Use the channel info from the hal to craft the 4470 * channel list for net80211. Note that we pass up 4471 * an unsorted list; net80211 will sort it for us. 4472 */ 4473 memset(ic->ic_channels, 0, sizeof(ic->ic_channels)); 4474 ic->ic_nchans = 0; 4475 getchannels(sc, IEEE80211_CHAN_MAX, &ic->ic_nchans, ic->ic_channels); 4476 4477 ic->ic_regdomain.regdomain = SKU_DEBUG; 4478 ic->ic_regdomain.country = CTRY_DEFAULT; 4479 ic->ic_regdomain.location = 'I'; 4480 ic->ic_regdomain.isocc[0] = ' '; /* XXX? */ 4481 ic->ic_regdomain.isocc[1] = ' '; 4482 return (ic->ic_nchans == 0 ? EIO : 0); 4483 } 4484 #undef IEEE80211_CHAN_HTA 4485 #undef IEEE80211_CHAN_HTG 4486 4487 #ifdef MWL_DEBUG 4488 static void 4489 mwl_printrxbuf(const struct mwl_rxbuf *bf, u_int ix) 4490 { 4491 const struct mwl_rxdesc *ds = bf->bf_desc; 4492 uint32_t status = le32toh(ds->Status); 4493 4494 printf("R[%2u] (DS.V:%p DS.P:0x%jx) NEXT:%08x DATA:%08x RC:%02x%s\n" 4495 " STAT:%02x LEN:%04x RSSI:%02x CHAN:%02x RATE:%02x QOS:%04x HT:%04x\n", 4496 ix, ds, (uintmax_t)bf->bf_daddr, le32toh(ds->pPhysNext), 4497 le32toh(ds->pPhysBuffData), ds->RxControl, 4498 ds->RxControl != EAGLE_RXD_CTRL_DRIVER_OWN ? 4499 "" : (status & EAGLE_RXD_STATUS_OK) ? " *" : " !", 4500 ds->Status, le16toh(ds->PktLen), ds->RSSI, ds->Channel, 4501 ds->Rate, le16toh(ds->QosCtrl), le16toh(ds->HtSig2)); 4502 } 4503 4504 static void 4505 mwl_printtxbuf(const struct mwl_txbuf *bf, u_int qnum, u_int ix) 4506 { 4507 const struct mwl_txdesc *ds = bf->bf_desc; 4508 uint32_t status = le32toh(ds->Status); 4509 4510 printf("Q%u[%3u]", qnum, ix); 4511 printf(" (DS.V:%p DS.P:0x%jx)\n", ds, (uintmax_t)bf->bf_daddr); 4512 printf(" NEXT:%08x DATA:%08x LEN:%04x STAT:%08x%s\n", 4513 le32toh(ds->pPhysNext), 4514 le32toh(ds->PktPtr), le16toh(ds->PktLen), status, 4515 status & EAGLE_TXD_STATUS_USED ? 4516 "" : (status & 3) != 0 ? " *" : " !"); 4517 printf(" RATE:%02x PRI:%x QOS:%04x SAP:%08x FORMAT:%04x\n", 4518 ds->DataRate, ds->TxPriority, le16toh(ds->QosCtrl), 4519 le32toh(ds->SapPktInfo), le16toh(ds->Format)); 4520 #if MWL_TXDESC > 1 4521 printf(" MULTIFRAMES:%u LEN:%04x %04x %04x %04x %04x %04x\n" 4522 , le32toh(ds->multiframes) 4523 , le16toh(ds->PktLenArray[0]), le16toh(ds->PktLenArray[1]) 4524 , le16toh(ds->PktLenArray[2]), le16toh(ds->PktLenArray[3]) 4525 , le16toh(ds->PktLenArray[4]), le16toh(ds->PktLenArray[5]) 4526 ); 4527 printf(" DATA:%08x %08x %08x %08x %08x %08x\n" 4528 , le32toh(ds->PktPtrArray[0]), le32toh(ds->PktPtrArray[1]) 4529 , le32toh(ds->PktPtrArray[2]), le32toh(ds->PktPtrArray[3]) 4530 , le32toh(ds->PktPtrArray[4]), le32toh(ds->PktPtrArray[5]) 4531 ); 4532 #endif 4533 #if 0 4534 { const uint8_t *cp = (const uint8_t *) ds; 4535 int i; 4536 for (i = 0; i < sizeof(struct mwl_txdesc); i++) { 4537 printf("%02x ", cp[i]); 4538 if (((i+1) % 16) == 0) 4539 printf("\n"); 4540 } 4541 printf("\n"); 4542 } 4543 #endif 4544 } 4545 #endif /* MWL_DEBUG */ 4546 4547 #if 0 4548 static void 4549 mwl_txq_dump(struct mwl_txq *txq) 4550 { 4551 struct mwl_txbuf *bf; 4552 int i = 0; 4553 4554 MWL_TXQ_LOCK(txq); 4555 STAILQ_FOREACH(bf, &txq->active, bf_list) { 4556 struct mwl_txdesc *ds = bf->bf_desc; 4557 MWL_TXDESC_SYNC(txq, ds, 4558 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 4559 #ifdef MWL_DEBUG 4560 mwl_printtxbuf(bf, txq->qnum, i); 4561 #endif 4562 i++; 4563 } 4564 MWL_TXQ_UNLOCK(txq); 4565 } 4566 #endif 4567 4568 static void 4569 mwl_watchdog(void *arg) 4570 { 4571 struct mwl_softc *sc = arg; 4572 4573 callout_reset(&sc->sc_watchdog, hz, mwl_watchdog, sc); 4574 if (sc->sc_tx_timer == 0 || --sc->sc_tx_timer > 0) 4575 return; 4576 4577 if (sc->sc_running && !sc->sc_invalid) { 4578 if (mwl_hal_setkeepalive(sc->sc_mh)) 4579 device_printf(sc->sc_dev, 4580 "transmit timeout (firmware hung?)\n"); 4581 else 4582 device_printf(sc->sc_dev, 4583 "transmit timeout\n"); 4584 #if 0 4585 mwl_reset(sc); 4586 mwl_txq_dump(&sc->sc_txq[0]);/*XXX*/ 4587 #endif 4588 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 4589 sc->sc_stats.mst_watchdog++; 4590 } 4591 } 4592 4593 #ifdef MWL_DIAGAPI 4594 /* 4595 * Diagnostic interface to the HAL. This is used by various 4596 * tools to do things like retrieve register contents for 4597 * debugging. The mechanism is intentionally opaque so that 4598 * it can change frequently w/o concern for compatibility. 4599 */ 4600 static int 4601 mwl_ioctl_diag(struct mwl_softc *sc, struct mwl_diag *md) 4602 { 4603 struct mwl_hal *mh = sc->sc_mh; 4604 u_int id = md->md_id & MWL_DIAG_ID; 4605 void *indata = NULL; 4606 void *outdata = NULL; 4607 u_int32_t insize = md->md_in_size; 4608 u_int32_t outsize = md->md_out_size; 4609 int error = 0; 4610 4611 if (md->md_id & MWL_DIAG_IN) { 4612 /* 4613 * Copy in data. 4614 */ 4615 indata = malloc(insize, M_TEMP, M_NOWAIT); 4616 if (indata == NULL) { 4617 error = ENOMEM; 4618 goto bad; 4619 } 4620 error = copyin(md->md_in_data, indata, insize); 4621 if (error) 4622 goto bad; 4623 } 4624 if (md->md_id & MWL_DIAG_DYN) { 4625 /* 4626 * Allocate a buffer for the results (otherwise the HAL 4627 * returns a pointer to a buffer where we can read the 4628 * results). Note that we depend on the HAL leaving this 4629 * pointer for us to use below in reclaiming the buffer; 4630 * may want to be more defensive. 4631 */ 4632 outdata = malloc(outsize, M_TEMP, M_NOWAIT); 4633 if (outdata == NULL) { 4634 error = ENOMEM; 4635 goto bad; 4636 } 4637 } 4638 if (mwl_hal_getdiagstate(mh, id, indata, insize, &outdata, &outsize)) { 4639 if (outsize < md->md_out_size) 4640 md->md_out_size = outsize; 4641 if (outdata != NULL) 4642 error = copyout(outdata, md->md_out_data, 4643 md->md_out_size); 4644 } else { 4645 error = EINVAL; 4646 } 4647 bad: 4648 if ((md->md_id & MWL_DIAG_IN) && indata != NULL) 4649 free(indata, M_TEMP); 4650 if ((md->md_id & MWL_DIAG_DYN) && outdata != NULL) 4651 free(outdata, M_TEMP); 4652 return error; 4653 } 4654 4655 static int 4656 mwl_ioctl_reset(struct mwl_softc *sc, struct mwl_diag *md) 4657 { 4658 struct mwl_hal *mh = sc->sc_mh; 4659 int error; 4660 4661 MWL_LOCK_ASSERT(sc); 4662 4663 if (md->md_id == 0 && mwl_hal_fwload(mh, NULL) != 0) { 4664 device_printf(sc->sc_dev, "unable to load firmware\n"); 4665 return EIO; 4666 } 4667 if (mwl_hal_gethwspecs(mh, &sc->sc_hwspecs) != 0) { 4668 device_printf(sc->sc_dev, "unable to fetch h/w specs\n"); 4669 return EIO; 4670 } 4671 error = mwl_setupdma(sc); 4672 if (error != 0) { 4673 /* NB: mwl_setupdma prints a msg */ 4674 return error; 4675 } 4676 /* 4677 * Reset tx/rx data structures; after reload we must 4678 * re-start the driver's notion of the next xmit/recv. 4679 */ 4680 mwl_draintxq(sc); /* clear pending frames */ 4681 mwl_resettxq(sc); /* rebuild tx q lists */ 4682 sc->sc_rxnext = NULL; /* force rx to start at the list head */ 4683 return 0; 4684 } 4685 #endif /* MWL_DIAGAPI */ 4686 4687 static void 4688 mwl_parent(struct ieee80211com *ic) 4689 { 4690 struct mwl_softc *sc = ic->ic_softc; 4691 int startall = 0; 4692 4693 MWL_LOCK(sc); 4694 if (ic->ic_nrunning > 0) { 4695 if (sc->sc_running) { 4696 /* 4697 * To avoid rescanning another access point, 4698 * do not call mwl_init() here. Instead, 4699 * only reflect promisc mode settings. 4700 */ 4701 mwl_mode_init(sc); 4702 } else { 4703 /* 4704 * Beware of being called during attach/detach 4705 * to reset promiscuous mode. In that case we 4706 * will still be marked UP but not RUNNING. 4707 * However trying to re-init the interface 4708 * is the wrong thing to do as we've already 4709 * torn down much of our state. There's 4710 * probably a better way to deal with this. 4711 */ 4712 if (!sc->sc_invalid) { 4713 mwl_init(sc); /* XXX lose error */ 4714 startall = 1; 4715 } 4716 } 4717 } else 4718 mwl_stop(sc); 4719 MWL_UNLOCK(sc); 4720 if (startall) 4721 ieee80211_start_all(ic); 4722 } 4723 4724 static int 4725 mwl_ioctl(struct ieee80211com *ic, u_long cmd, void *data) 4726 { 4727 struct mwl_softc *sc = ic->ic_softc; 4728 struct ifreq *ifr = data; 4729 int error = 0; 4730 4731 switch (cmd) { 4732 case SIOCGMVSTATS: 4733 mwl_hal_gethwstats(sc->sc_mh, &sc->sc_stats.hw_stats); 4734 #if 0 4735 /* NB: embed these numbers to get a consistent view */ 4736 sc->sc_stats.mst_tx_packets = 4737 ifp->if_get_counter(ifp, IFCOUNTER_OPACKETS); 4738 sc->sc_stats.mst_rx_packets = 4739 ifp->if_get_counter(ifp, IFCOUNTER_IPACKETS); 4740 #endif 4741 /* 4742 * NB: Drop the softc lock in case of a page fault; 4743 * we'll accept any potential inconsisentcy in the 4744 * statistics. The alternative is to copy the data 4745 * to a local structure. 4746 */ 4747 return (copyout(&sc->sc_stats, 4748 ifr->ifr_data, sizeof (sc->sc_stats))); 4749 #ifdef MWL_DIAGAPI 4750 case SIOCGMVDIAG: 4751 /* XXX check privs */ 4752 return mwl_ioctl_diag(sc, (struct mwl_diag *) ifr); 4753 case SIOCGMVRESET: 4754 /* XXX check privs */ 4755 MWL_LOCK(sc); 4756 error = mwl_ioctl_reset(sc,(struct mwl_diag *) ifr); 4757 MWL_UNLOCK(sc); 4758 break; 4759 #endif /* MWL_DIAGAPI */ 4760 default: 4761 error = ENOTTY; 4762 break; 4763 } 4764 return (error); 4765 } 4766 4767 #ifdef MWL_DEBUG 4768 static int 4769 mwl_sysctl_debug(SYSCTL_HANDLER_ARGS) 4770 { 4771 struct mwl_softc *sc = arg1; 4772 int debug, error; 4773 4774 debug = sc->sc_debug | (mwl_hal_getdebug(sc->sc_mh) << 24); 4775 error = sysctl_handle_int(oidp, &debug, 0, req); 4776 if (error || !req->newptr) 4777 return error; 4778 mwl_hal_setdebug(sc->sc_mh, debug >> 24); 4779 sc->sc_debug = debug & 0x00ffffff; 4780 return 0; 4781 } 4782 #endif /* MWL_DEBUG */ 4783 4784 static void 4785 mwl_sysctlattach(struct mwl_softc *sc) 4786 { 4787 #ifdef MWL_DEBUG 4788 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 4789 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 4790 4791 sc->sc_debug = mwl_debug; 4792 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 4793 "debug", CTLTYPE_INT | CTLFLAG_RW, sc, 0, 4794 mwl_sysctl_debug, "I", "control debugging printfs"); 4795 #endif 4796 } 4797 4798 /* 4799 * Announce various information on device/driver attach. 4800 */ 4801 static void 4802 mwl_announce(struct mwl_softc *sc) 4803 { 4804 4805 device_printf(sc->sc_dev, "Rev A%d hardware, v%d.%d.%d.%d firmware (regioncode %d)\n", 4806 sc->sc_hwspecs.hwVersion, 4807 (sc->sc_hwspecs.fwReleaseNumber>>24) & 0xff, 4808 (sc->sc_hwspecs.fwReleaseNumber>>16) & 0xff, 4809 (sc->sc_hwspecs.fwReleaseNumber>>8) & 0xff, 4810 (sc->sc_hwspecs.fwReleaseNumber>>0) & 0xff, 4811 sc->sc_hwspecs.regionCode); 4812 sc->sc_fwrelease = sc->sc_hwspecs.fwReleaseNumber; 4813 4814 if (bootverbose) { 4815 int i; 4816 for (i = 0; i <= WME_AC_VO; i++) { 4817 struct mwl_txq *txq = sc->sc_ac2q[i]; 4818 device_printf(sc->sc_dev, "Use hw queue %u for %s traffic\n", 4819 txq->qnum, ieee80211_wme_acnames[i]); 4820 } 4821 } 4822 if (bootverbose || mwl_rxdesc != MWL_RXDESC) 4823 device_printf(sc->sc_dev, "using %u rx descriptors\n", mwl_rxdesc); 4824 if (bootverbose || mwl_rxbuf != MWL_RXBUF) 4825 device_printf(sc->sc_dev, "using %u rx buffers\n", mwl_rxbuf); 4826 if (bootverbose || mwl_txbuf != MWL_TXBUF) 4827 device_printf(sc->sc_dev, "using %u tx buffers\n", mwl_txbuf); 4828 if (bootverbose && mwl_hal_ismbsscapable(sc->sc_mh)) 4829 device_printf(sc->sc_dev, "multi-bss support\n"); 4830 #ifdef MWL_TX_NODROP 4831 if (bootverbose) 4832 device_printf(sc->sc_dev, "no tx drop\n"); 4833 #endif 4834 } 4835