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_regdomain.h> 74 75 #ifdef INET 76 #include <netinet/in.h> 77 #include <netinet/if_ether.h> 78 #endif /* INET */ 79 80 #include <dev/mwl/if_mwlvar.h> 81 #include <dev/mwl/mwldiag.h> 82 83 /* idiomatic shorthands: MS = mask+shift, SM = shift+mask */ 84 #define MS(v,x) (((v) & x) >> x##_S) 85 #define SM(v,x) (((v) << x##_S) & x) 86 87 static struct ieee80211vap *mwl_vap_create(struct ieee80211com *, 88 const char [IFNAMSIZ], int, enum ieee80211_opmode, int, 89 const uint8_t [IEEE80211_ADDR_LEN], 90 const uint8_t [IEEE80211_ADDR_LEN]); 91 static void mwl_vap_delete(struct ieee80211vap *); 92 static int mwl_setupdma(struct mwl_softc *); 93 static int mwl_hal_reset(struct mwl_softc *sc); 94 static int mwl_init_locked(struct mwl_softc *); 95 static void mwl_init(void *); 96 static void mwl_stop_locked(struct ifnet *, int); 97 static int mwl_reset(struct ieee80211vap *, u_long); 98 static void mwl_stop(struct ifnet *, int); 99 static void mwl_start(struct ifnet *); 100 static int mwl_raw_xmit(struct ieee80211_node *, struct mbuf *, 101 const struct ieee80211_bpf_params *); 102 static int mwl_media_change(struct ifnet *); 103 static void mwl_watchdog(void *); 104 static int mwl_ioctl(struct ifnet *, u_long, caddr_t); 105 static void mwl_radar_proc(void *, int); 106 static void mwl_chanswitch_proc(void *, int); 107 static void mwl_bawatchdog_proc(void *, int); 108 static int mwl_key_alloc(struct ieee80211vap *, 109 struct ieee80211_key *, 110 ieee80211_keyix *, ieee80211_keyix *); 111 static int mwl_key_delete(struct ieee80211vap *, 112 const struct ieee80211_key *); 113 static int mwl_key_set(struct ieee80211vap *, const struct ieee80211_key *, 114 const uint8_t mac[IEEE80211_ADDR_LEN]); 115 static int mwl_mode_init(struct mwl_softc *); 116 static void mwl_update_mcast(struct ifnet *); 117 static void mwl_update_promisc(struct ifnet *); 118 static void mwl_updateslot(struct ifnet *); 119 static int mwl_beacon_setup(struct ieee80211vap *); 120 static void mwl_beacon_update(struct ieee80211vap *, int); 121 #ifdef MWL_HOST_PS_SUPPORT 122 static void mwl_update_ps(struct ieee80211vap *, int); 123 static int mwl_set_tim(struct ieee80211_node *, int); 124 #endif 125 static int mwl_dma_setup(struct mwl_softc *); 126 static void mwl_dma_cleanup(struct mwl_softc *); 127 static struct ieee80211_node *mwl_node_alloc(struct ieee80211vap *, 128 const uint8_t [IEEE80211_ADDR_LEN]); 129 static void mwl_node_cleanup(struct ieee80211_node *); 130 static void mwl_node_drain(struct ieee80211_node *); 131 static void mwl_node_getsignal(const struct ieee80211_node *, 132 int8_t *, int8_t *); 133 static void mwl_node_getmimoinfo(const struct ieee80211_node *, 134 struct ieee80211_mimo_info *); 135 static int mwl_rxbuf_init(struct mwl_softc *, struct mwl_rxbuf *); 136 static void mwl_rx_proc(void *, int); 137 static void mwl_txq_init(struct mwl_softc *sc, struct mwl_txq *, int); 138 static int mwl_tx_setup(struct mwl_softc *, int, int); 139 static int mwl_wme_update(struct ieee80211com *); 140 static void mwl_tx_cleanupq(struct mwl_softc *, struct mwl_txq *); 141 static void mwl_tx_cleanup(struct mwl_softc *); 142 static uint16_t mwl_calcformat(uint8_t rate, const struct ieee80211_node *); 143 static int mwl_tx_start(struct mwl_softc *, struct ieee80211_node *, 144 struct mwl_txbuf *, struct mbuf *); 145 static void mwl_tx_proc(void *, int); 146 static int mwl_chan_set(struct mwl_softc *, struct ieee80211_channel *); 147 static void mwl_draintxq(struct mwl_softc *); 148 static void mwl_cleartxq(struct mwl_softc *, struct ieee80211vap *); 149 static int mwl_recv_action(struct ieee80211_node *, 150 const struct ieee80211_frame *, 151 const uint8_t *, const uint8_t *); 152 static int mwl_addba_request(struct ieee80211_node *, 153 struct ieee80211_tx_ampdu *, int dialogtoken, 154 int baparamset, int batimeout); 155 static int mwl_addba_response(struct ieee80211_node *, 156 struct ieee80211_tx_ampdu *, int status, 157 int baparamset, int batimeout); 158 static void mwl_addba_stop(struct ieee80211_node *, 159 struct ieee80211_tx_ampdu *); 160 static int mwl_startrecv(struct mwl_softc *); 161 static MWL_HAL_APMODE mwl_getapmode(const struct ieee80211vap *, 162 struct ieee80211_channel *); 163 static int mwl_setapmode(struct ieee80211vap *, struct ieee80211_channel*); 164 static void mwl_scan_start(struct ieee80211com *); 165 static void mwl_scan_end(struct ieee80211com *); 166 static void mwl_set_channel(struct ieee80211com *); 167 static int mwl_peerstadb(struct ieee80211_node *, 168 int aid, int staid, MWL_HAL_PEERINFO *pi); 169 static int mwl_localstadb(struct ieee80211vap *); 170 static int mwl_newstate(struct ieee80211vap *, enum ieee80211_state, int); 171 static int allocstaid(struct mwl_softc *sc, int aid); 172 static void delstaid(struct mwl_softc *sc, int staid); 173 static void mwl_newassoc(struct ieee80211_node *, int); 174 static void mwl_agestations(void *); 175 static int mwl_setregdomain(struct ieee80211com *, 176 struct ieee80211_regdomain *, int, 177 struct ieee80211_channel []); 178 static void mwl_getradiocaps(struct ieee80211com *, int, int *, 179 struct ieee80211_channel []); 180 static int mwl_getchannels(struct mwl_softc *); 181 182 static void mwl_sysctlattach(struct mwl_softc *); 183 static void mwl_announce(struct mwl_softc *); 184 185 SYSCTL_NODE(_hw, OID_AUTO, mwl, CTLFLAG_RD, 0, "Marvell driver parameters"); 186 187 static int mwl_rxdesc = MWL_RXDESC; /* # rx desc's to allocate */ 188 SYSCTL_INT(_hw_mwl, OID_AUTO, rxdesc, CTLFLAG_RW, &mwl_rxdesc, 189 0, "rx descriptors allocated"); 190 static int mwl_rxbuf = MWL_RXBUF; /* # rx buffers to allocate */ 191 SYSCTL_INT(_hw_mwl, OID_AUTO, rxbuf, CTLFLAG_RW, &mwl_rxbuf, 192 0, "rx buffers allocated"); 193 TUNABLE_INT("hw.mwl.rxbuf", &mwl_rxbuf); 194 static int mwl_txbuf = MWL_TXBUF; /* # tx buffers to allocate */ 195 SYSCTL_INT(_hw_mwl, OID_AUTO, txbuf, CTLFLAG_RW, &mwl_txbuf, 196 0, "tx buffers allocated"); 197 TUNABLE_INT("hw.mwl.txbuf", &mwl_txbuf); 198 static int mwl_txcoalesce = 8; /* # tx packets to q before poking f/w*/ 199 SYSCTL_INT(_hw_mwl, OID_AUTO, txcoalesce, CTLFLAG_RW, &mwl_txcoalesce, 200 0, "tx buffers to send at once"); 201 TUNABLE_INT("hw.mwl.txcoalesce", &mwl_txcoalesce); 202 static int mwl_rxquota = MWL_RXBUF; /* # max buffers to process */ 203 SYSCTL_INT(_hw_mwl, OID_AUTO, rxquota, CTLFLAG_RW, &mwl_rxquota, 204 0, "max rx buffers to process per interrupt"); 205 TUNABLE_INT("hw.mwl.rxquota", &mwl_rxquota); 206 static int mwl_rxdmalow = 3; /* # min buffers for wakeup */ 207 SYSCTL_INT(_hw_mwl, OID_AUTO, rxdmalow, CTLFLAG_RW, &mwl_rxdmalow, 208 0, "min free rx buffers before restarting traffic"); 209 TUNABLE_INT("hw.mwl.rxdmalow", &mwl_rxdmalow); 210 211 #ifdef MWL_DEBUG 212 static int mwl_debug = 0; 213 SYSCTL_INT(_hw_mwl, OID_AUTO, debug, CTLFLAG_RW, &mwl_debug, 214 0, "control debugging printfs"); 215 TUNABLE_INT("hw.mwl.debug", &mwl_debug); 216 enum { 217 MWL_DEBUG_XMIT = 0x00000001, /* basic xmit operation */ 218 MWL_DEBUG_XMIT_DESC = 0x00000002, /* xmit descriptors */ 219 MWL_DEBUG_RECV = 0x00000004, /* basic recv operation */ 220 MWL_DEBUG_RECV_DESC = 0x00000008, /* recv descriptors */ 221 MWL_DEBUG_RESET = 0x00000010, /* reset processing */ 222 MWL_DEBUG_BEACON = 0x00000020, /* beacon handling */ 223 MWL_DEBUG_INTR = 0x00000040, /* ISR */ 224 MWL_DEBUG_TX_PROC = 0x00000080, /* tx ISR proc */ 225 MWL_DEBUG_RX_PROC = 0x00000100, /* rx ISR proc */ 226 MWL_DEBUG_KEYCACHE = 0x00000200, /* key cache management */ 227 MWL_DEBUG_STATE = 0x00000400, /* 802.11 state transitions */ 228 MWL_DEBUG_NODE = 0x00000800, /* node management */ 229 MWL_DEBUG_RECV_ALL = 0x00001000, /* trace all frames (beacons) */ 230 MWL_DEBUG_TSO = 0x00002000, /* TSO processing */ 231 MWL_DEBUG_AMPDU = 0x00004000, /* BA stream handling */ 232 MWL_DEBUG_ANY = 0xffffffff 233 }; 234 #define IS_BEACON(wh) \ 235 ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK|IEEE80211_FC0_SUBTYPE_MASK)) == \ 236 (IEEE80211_FC0_TYPE_MGT|IEEE80211_FC0_SUBTYPE_BEACON)) 237 #define IFF_DUMPPKTS_RECV(sc, wh) \ 238 (((sc->sc_debug & MWL_DEBUG_RECV) && \ 239 ((sc->sc_debug & MWL_DEBUG_RECV_ALL) || !IS_BEACON(wh))) || \ 240 (sc->sc_ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) 241 #define IFF_DUMPPKTS_XMIT(sc) \ 242 ((sc->sc_debug & MWL_DEBUG_XMIT) || \ 243 (sc->sc_ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) 244 #define DPRINTF(sc, m, fmt, ...) do { \ 245 if (sc->sc_debug & (m)) \ 246 printf(fmt, __VA_ARGS__); \ 247 } while (0) 248 #define KEYPRINTF(sc, hk, mac) do { \ 249 if (sc->sc_debug & MWL_DEBUG_KEYCACHE) \ 250 mwl_keyprint(sc, __func__, hk, mac); \ 251 } while (0) 252 static void mwl_printrxbuf(const struct mwl_rxbuf *bf, u_int ix); 253 static void mwl_printtxbuf(const struct mwl_txbuf *bf, u_int qnum, u_int ix); 254 #else 255 #define IFF_DUMPPKTS_RECV(sc, wh) \ 256 ((sc->sc_ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) 257 #define IFF_DUMPPKTS_XMIT(sc) \ 258 ((sc->sc_ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) 259 #define DPRINTF(sc, m, fmt, ...) do { \ 260 (void) sc; \ 261 } while (0) 262 #define KEYPRINTF(sc, k, mac) do { \ 263 (void) sc; \ 264 } while (0) 265 #endif 266 267 static MALLOC_DEFINE(M_MWLDEV, "mwldev", "mwl driver dma buffers"); 268 269 /* 270 * Each packet has fixed front matter: a 2-byte length 271 * of the payload, followed by a 4-address 802.11 header 272 * (regardless of the actual header and always w/o any 273 * QoS header). The payload then follows. 274 */ 275 struct mwltxrec { 276 uint16_t fwlen; 277 struct ieee80211_frame_addr4 wh; 278 } __packed; 279 280 /* 281 * Read/Write shorthands for accesses to BAR 0. Note 282 * that all BAR 1 operations are done in the "hal" and 283 * there should be no reference to them here. 284 */ 285 #ifdef MWL_DEBUG 286 static __inline uint32_t 287 RD4(struct mwl_softc *sc, bus_size_t off) 288 { 289 return bus_space_read_4(sc->sc_io0t, sc->sc_io0h, off); 290 } 291 #endif 292 293 static __inline void 294 WR4(struct mwl_softc *sc, bus_size_t off, uint32_t val) 295 { 296 bus_space_write_4(sc->sc_io0t, sc->sc_io0h, off, val); 297 } 298 299 int 300 mwl_attach(uint16_t devid, struct mwl_softc *sc) 301 { 302 struct ifnet *ifp; 303 struct ieee80211com *ic; 304 struct mwl_hal *mh; 305 int error = 0; 306 307 DPRINTF(sc, MWL_DEBUG_ANY, "%s: devid 0x%x\n", __func__, devid); 308 309 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 310 if (ifp == NULL) { 311 device_printf(sc->sc_dev, "cannot if_alloc()\n"); 312 return ENOSPC; 313 } 314 ic = ifp->if_l2com; 315 316 /* 317 * Setup the RX free list lock early, so it can be consistently 318 * removed. 319 */ 320 MWL_RXFREE_INIT(sc); 321 322 /* set these up early for if_printf use */ 323 if_initname(ifp, device_get_name(sc->sc_dev), 324 device_get_unit(sc->sc_dev)); 325 326 mh = mwl_hal_attach(sc->sc_dev, devid, 327 sc->sc_io1h, sc->sc_io1t, sc->sc_dmat); 328 if (mh == NULL) { 329 if_printf(ifp, "unable to attach HAL\n"); 330 error = EIO; 331 goto bad; 332 } 333 sc->sc_mh = mh; 334 /* 335 * Load firmware so we can get setup. We arbitrarily 336 * pick station firmware; we'll re-load firmware as 337 * needed so setting up the wrong mode isn't a big deal. 338 */ 339 if (mwl_hal_fwload(mh, NULL) != 0) { 340 if_printf(ifp, "unable to setup builtin firmware\n"); 341 error = EIO; 342 goto bad1; 343 } 344 if (mwl_hal_gethwspecs(mh, &sc->sc_hwspecs) != 0) { 345 if_printf(ifp, "unable to fetch h/w specs\n"); 346 error = EIO; 347 goto bad1; 348 } 349 error = mwl_getchannels(sc); 350 if (error != 0) 351 goto bad1; 352 353 sc->sc_txantenna = 0; /* h/w default */ 354 sc->sc_rxantenna = 0; /* h/w default */ 355 sc->sc_invalid = 0; /* ready to go, enable int handling */ 356 sc->sc_ageinterval = MWL_AGEINTERVAL; 357 358 /* 359 * Allocate tx+rx descriptors and populate the lists. 360 * We immediately push the information to the firmware 361 * as otherwise it gets upset. 362 */ 363 error = mwl_dma_setup(sc); 364 if (error != 0) { 365 if_printf(ifp, "failed to setup descriptors: %d\n", error); 366 goto bad1; 367 } 368 error = mwl_setupdma(sc); /* push to firmware */ 369 if (error != 0) /* NB: mwl_setupdma prints msg */ 370 goto bad1; 371 372 callout_init(&sc->sc_timer, CALLOUT_MPSAFE); 373 callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 374 375 sc->sc_tq = taskqueue_create("mwl_taskq", M_NOWAIT, 376 taskqueue_thread_enqueue, &sc->sc_tq); 377 taskqueue_start_threads(&sc->sc_tq, 1, PI_NET, 378 "%s taskq", ifp->if_xname); 379 380 TASK_INIT(&sc->sc_rxtask, 0, mwl_rx_proc, sc); 381 TASK_INIT(&sc->sc_radartask, 0, mwl_radar_proc, sc); 382 TASK_INIT(&sc->sc_chanswitchtask, 0, mwl_chanswitch_proc, sc); 383 TASK_INIT(&sc->sc_bawatchdogtask, 0, mwl_bawatchdog_proc, sc); 384 385 /* NB: insure BK queue is the lowest priority h/w queue */ 386 if (!mwl_tx_setup(sc, WME_AC_BK, MWL_WME_AC_BK)) { 387 if_printf(ifp, "unable to setup xmit queue for %s traffic!\n", 388 ieee80211_wme_acnames[WME_AC_BK]); 389 error = EIO; 390 goto bad2; 391 } 392 if (!mwl_tx_setup(sc, WME_AC_BE, MWL_WME_AC_BE) || 393 !mwl_tx_setup(sc, WME_AC_VI, MWL_WME_AC_VI) || 394 !mwl_tx_setup(sc, WME_AC_VO, MWL_WME_AC_VO)) { 395 /* 396 * Not enough hardware tx queues to properly do WME; 397 * just punt and assign them all to the same h/w queue. 398 * We could do a better job of this if, for example, 399 * we allocate queues when we switch from station to 400 * AP mode. 401 */ 402 if (sc->sc_ac2q[WME_AC_VI] != NULL) 403 mwl_tx_cleanupq(sc, sc->sc_ac2q[WME_AC_VI]); 404 if (sc->sc_ac2q[WME_AC_BE] != NULL) 405 mwl_tx_cleanupq(sc, sc->sc_ac2q[WME_AC_BE]); 406 sc->sc_ac2q[WME_AC_BE] = sc->sc_ac2q[WME_AC_BK]; 407 sc->sc_ac2q[WME_AC_VI] = sc->sc_ac2q[WME_AC_BK]; 408 sc->sc_ac2q[WME_AC_VO] = sc->sc_ac2q[WME_AC_BK]; 409 } 410 TASK_INIT(&sc->sc_txtask, 0, mwl_tx_proc, sc); 411 412 ifp->if_softc = sc; 413 ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST; 414 ifp->if_start = mwl_start; 415 ifp->if_ioctl = mwl_ioctl; 416 ifp->if_init = mwl_init; 417 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 418 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 419 IFQ_SET_READY(&ifp->if_snd); 420 421 ic->ic_ifp = ifp; 422 /* XXX not right but it's not used anywhere important */ 423 ic->ic_phytype = IEEE80211_T_OFDM; 424 ic->ic_opmode = IEEE80211_M_STA; 425 ic->ic_caps = 426 IEEE80211_C_STA /* station mode supported */ 427 | IEEE80211_C_HOSTAP /* hostap mode */ 428 | IEEE80211_C_MONITOR /* monitor mode */ 429 #if 0 430 | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */ 431 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 432 #endif 433 | IEEE80211_C_MBSS /* mesh point link mode */ 434 | IEEE80211_C_WDS /* WDS supported */ 435 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 436 | IEEE80211_C_SHSLOT /* short slot time supported */ 437 | IEEE80211_C_WME /* WME/WMM supported */ 438 | IEEE80211_C_BURST /* xmit bursting supported */ 439 | IEEE80211_C_WPA /* capable of WPA1+WPA2 */ 440 | IEEE80211_C_BGSCAN /* capable of bg scanning */ 441 | IEEE80211_C_TXFRAG /* handle tx frags */ 442 | IEEE80211_C_TXPMGT /* capable of txpow mgt */ 443 | IEEE80211_C_DFS /* DFS supported */ 444 ; 445 446 ic->ic_htcaps = 447 IEEE80211_HTCAP_SMPS_ENA /* SM PS mode enabled */ 448 | IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width */ 449 | IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */ 450 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */ 451 | IEEE80211_HTCAP_RXSTBC_2STREAM/* 1-2 spatial streams */ 452 #if MWL_AGGR_SIZE == 7935 453 | IEEE80211_HTCAP_MAXAMSDU_7935 /* max A-MSDU length */ 454 #else 455 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */ 456 #endif 457 #if 0 458 | IEEE80211_HTCAP_PSMP /* PSMP supported */ 459 | IEEE80211_HTCAP_40INTOLERANT /* 40MHz intolerant */ 460 #endif 461 /* s/w capabilities */ 462 | IEEE80211_HTC_HT /* HT operation */ 463 | IEEE80211_HTC_AMPDU /* tx A-MPDU */ 464 | IEEE80211_HTC_AMSDU /* tx A-MSDU */ 465 | IEEE80211_HTC_SMPS /* SMPS available */ 466 ; 467 468 /* 469 * Mark h/w crypto support. 470 * XXX no way to query h/w support. 471 */ 472 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP 473 | IEEE80211_CRYPTO_AES_CCM 474 | IEEE80211_CRYPTO_TKIP 475 | IEEE80211_CRYPTO_TKIPMIC 476 ; 477 /* 478 * Transmit requires space in the packet for a special 479 * format transmit record and optional padding between 480 * this record and the payload. Ask the net80211 layer 481 * to arrange this when encapsulating packets so we can 482 * add it efficiently. 483 */ 484 ic->ic_headroom = sizeof(struct mwltxrec) - 485 sizeof(struct ieee80211_frame); 486 487 /* call MI attach routine. */ 488 ieee80211_ifattach(ic, sc->sc_hwspecs.macAddr); 489 ic->ic_setregdomain = mwl_setregdomain; 490 ic->ic_getradiocaps = mwl_getradiocaps; 491 /* override default methods */ 492 ic->ic_raw_xmit = mwl_raw_xmit; 493 ic->ic_newassoc = mwl_newassoc; 494 ic->ic_updateslot = mwl_updateslot; 495 ic->ic_update_mcast = mwl_update_mcast; 496 ic->ic_update_promisc = mwl_update_promisc; 497 ic->ic_wme.wme_update = mwl_wme_update; 498 499 ic->ic_node_alloc = mwl_node_alloc; 500 sc->sc_node_cleanup = ic->ic_node_cleanup; 501 ic->ic_node_cleanup = mwl_node_cleanup; 502 sc->sc_node_drain = ic->ic_node_drain; 503 ic->ic_node_drain = mwl_node_drain; 504 ic->ic_node_getsignal = mwl_node_getsignal; 505 ic->ic_node_getmimoinfo = mwl_node_getmimoinfo; 506 507 ic->ic_scan_start = mwl_scan_start; 508 ic->ic_scan_end = mwl_scan_end; 509 ic->ic_set_channel = mwl_set_channel; 510 511 sc->sc_recv_action = ic->ic_recv_action; 512 ic->ic_recv_action = mwl_recv_action; 513 sc->sc_addba_request = ic->ic_addba_request; 514 ic->ic_addba_request = mwl_addba_request; 515 sc->sc_addba_response = ic->ic_addba_response; 516 ic->ic_addba_response = mwl_addba_response; 517 sc->sc_addba_stop = ic->ic_addba_stop; 518 ic->ic_addba_stop = mwl_addba_stop; 519 520 ic->ic_vap_create = mwl_vap_create; 521 ic->ic_vap_delete = mwl_vap_delete; 522 523 ieee80211_radiotap_attach(ic, 524 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 525 MWL_TX_RADIOTAP_PRESENT, 526 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 527 MWL_RX_RADIOTAP_PRESENT); 528 /* 529 * Setup dynamic sysctl's now that country code and 530 * regdomain are available from the hal. 531 */ 532 mwl_sysctlattach(sc); 533 534 if (bootverbose) 535 ieee80211_announce(ic); 536 mwl_announce(sc); 537 return 0; 538 bad2: 539 mwl_dma_cleanup(sc); 540 bad1: 541 mwl_hal_detach(mh); 542 bad: 543 MWL_RXFREE_DESTROY(sc); 544 if_free(ifp); 545 sc->sc_invalid = 1; 546 return error; 547 } 548 549 int 550 mwl_detach(struct mwl_softc *sc) 551 { 552 struct ifnet *ifp = sc->sc_ifp; 553 struct ieee80211com *ic = ifp->if_l2com; 554 555 DPRINTF(sc, MWL_DEBUG_ANY, "%s: if_flags %x\n", 556 __func__, ifp->if_flags); 557 558 mwl_stop(ifp, 1); 559 /* 560 * NB: the order of these is important: 561 * o call the 802.11 layer before detaching the hal to 562 * insure callbacks into the driver to delete global 563 * key cache entries can be handled 564 * o reclaim the tx queue data structures after calling 565 * the 802.11 layer as we'll get called back to reclaim 566 * node state and potentially want to use them 567 * o to cleanup the tx queues the hal is called, so detach 568 * it last 569 * Other than that, it's straightforward... 570 */ 571 ieee80211_ifdetach(ic); 572 callout_drain(&sc->sc_watchdog); 573 mwl_dma_cleanup(sc); 574 MWL_RXFREE_DESTROY(sc); 575 mwl_tx_cleanup(sc); 576 mwl_hal_detach(sc->sc_mh); 577 if_free(ifp); 578 579 return 0; 580 } 581 582 /* 583 * MAC address handling for multiple BSS on the same radio. 584 * The first vap uses the MAC address from the EEPROM. For 585 * subsequent vap's we set the U/L bit (bit 1) in the MAC 586 * address and use the next six bits as an index. 587 */ 588 static void 589 assign_address(struct mwl_softc *sc, uint8_t mac[IEEE80211_ADDR_LEN], int clone) 590 { 591 int i; 592 593 if (clone && mwl_hal_ismbsscapable(sc->sc_mh)) { 594 /* NB: we only do this if h/w supports multiple bssid */ 595 for (i = 0; i < 32; i++) 596 if ((sc->sc_bssidmask & (1<<i)) == 0) 597 break; 598 if (i != 0) 599 mac[0] |= (i << 2)|0x2; 600 } else 601 i = 0; 602 sc->sc_bssidmask |= 1<<i; 603 if (i == 0) 604 sc->sc_nbssid0++; 605 } 606 607 static void 608 reclaim_address(struct mwl_softc *sc, uint8_t mac[IEEE80211_ADDR_LEN]) 609 { 610 int i = mac[0] >> 2; 611 if (i != 0 || --sc->sc_nbssid0 == 0) 612 sc->sc_bssidmask &= ~(1<<i); 613 } 614 615 static struct ieee80211vap * 616 mwl_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 617 enum ieee80211_opmode opmode, int flags, 618 const uint8_t bssid[IEEE80211_ADDR_LEN], 619 const uint8_t mac0[IEEE80211_ADDR_LEN]) 620 { 621 struct ifnet *ifp = ic->ic_ifp; 622 struct mwl_softc *sc = ifp->if_softc; 623 struct mwl_hal *mh = sc->sc_mh; 624 struct ieee80211vap *vap, *apvap; 625 struct mwl_hal_vap *hvap; 626 struct mwl_vap *mvp; 627 uint8_t mac[IEEE80211_ADDR_LEN]; 628 629 IEEE80211_ADDR_COPY(mac, mac0); 630 switch (opmode) { 631 case IEEE80211_M_HOSTAP: 632 case IEEE80211_M_MBSS: 633 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 634 assign_address(sc, mac, flags & IEEE80211_CLONE_BSSID); 635 hvap = mwl_hal_newvap(mh, MWL_HAL_AP, mac); 636 if (hvap == NULL) { 637 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 638 reclaim_address(sc, mac); 639 return NULL; 640 } 641 break; 642 case IEEE80211_M_STA: 643 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 644 assign_address(sc, mac, flags & IEEE80211_CLONE_BSSID); 645 hvap = mwl_hal_newvap(mh, MWL_HAL_STA, mac); 646 if (hvap == NULL) { 647 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 648 reclaim_address(sc, mac); 649 return NULL; 650 } 651 /* no h/w beacon miss support; always use s/w */ 652 flags |= IEEE80211_CLONE_NOBEACONS; 653 break; 654 case IEEE80211_M_WDS: 655 hvap = NULL; /* NB: we use associated AP vap */ 656 if (sc->sc_napvaps == 0) 657 return NULL; /* no existing AP vap */ 658 break; 659 case IEEE80211_M_MONITOR: 660 hvap = NULL; 661 break; 662 case IEEE80211_M_IBSS: 663 case IEEE80211_M_AHDEMO: 664 default: 665 return NULL; 666 } 667 668 mvp = (struct mwl_vap *) malloc(sizeof(struct mwl_vap), 669 M_80211_VAP, M_NOWAIT | M_ZERO); 670 if (mvp == NULL) { 671 if (hvap != NULL) { 672 mwl_hal_delvap(hvap); 673 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 674 reclaim_address(sc, mac); 675 } 676 /* XXX msg */ 677 return NULL; 678 } 679 mvp->mv_hvap = hvap; 680 if (opmode == IEEE80211_M_WDS) { 681 /* 682 * WDS vaps must have an associated AP vap; find one. 683 * XXX not right. 684 */ 685 TAILQ_FOREACH(apvap, &ic->ic_vaps, iv_next) 686 if (apvap->iv_opmode == IEEE80211_M_HOSTAP) { 687 mvp->mv_ap_hvap = MWL_VAP(apvap)->mv_hvap; 688 break; 689 } 690 KASSERT(mvp->mv_ap_hvap != NULL, ("no ap vap")); 691 } 692 vap = &mvp->mv_vap; 693 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 694 if (hvap != NULL) 695 IEEE80211_ADDR_COPY(vap->iv_myaddr, mac); 696 /* override with driver methods */ 697 mvp->mv_newstate = vap->iv_newstate; 698 vap->iv_newstate = mwl_newstate; 699 vap->iv_max_keyix = 0; /* XXX */ 700 vap->iv_key_alloc = mwl_key_alloc; 701 vap->iv_key_delete = mwl_key_delete; 702 vap->iv_key_set = mwl_key_set; 703 #ifdef MWL_HOST_PS_SUPPORT 704 if (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_MBSS) { 705 vap->iv_update_ps = mwl_update_ps; 706 mvp->mv_set_tim = vap->iv_set_tim; 707 vap->iv_set_tim = mwl_set_tim; 708 } 709 #endif 710 vap->iv_reset = mwl_reset; 711 vap->iv_update_beacon = mwl_beacon_update; 712 713 /* override max aid so sta's cannot assoc when we're out of sta id's */ 714 vap->iv_max_aid = MWL_MAXSTAID; 715 /* override default A-MPDU rx parameters */ 716 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_64K; 717 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_4; 718 719 /* complete setup */ 720 ieee80211_vap_attach(vap, mwl_media_change, ieee80211_media_status); 721 722 switch (vap->iv_opmode) { 723 case IEEE80211_M_HOSTAP: 724 case IEEE80211_M_MBSS: 725 case IEEE80211_M_STA: 726 /* 727 * Setup sta db entry for local address. 728 */ 729 mwl_localstadb(vap); 730 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 731 vap->iv_opmode == IEEE80211_M_MBSS) 732 sc->sc_napvaps++; 733 else 734 sc->sc_nstavaps++; 735 break; 736 case IEEE80211_M_WDS: 737 sc->sc_nwdsvaps++; 738 break; 739 default: 740 break; 741 } 742 /* 743 * Setup overall operating mode. 744 */ 745 if (sc->sc_napvaps) 746 ic->ic_opmode = IEEE80211_M_HOSTAP; 747 else if (sc->sc_nstavaps) 748 ic->ic_opmode = IEEE80211_M_STA; 749 else 750 ic->ic_opmode = opmode; 751 752 return vap; 753 } 754 755 static void 756 mwl_vap_delete(struct ieee80211vap *vap) 757 { 758 struct mwl_vap *mvp = MWL_VAP(vap); 759 struct ifnet *parent = vap->iv_ic->ic_ifp; 760 struct mwl_softc *sc = parent->if_softc; 761 struct mwl_hal *mh = sc->sc_mh; 762 struct mwl_hal_vap *hvap = mvp->mv_hvap; 763 enum ieee80211_opmode opmode = vap->iv_opmode; 764 765 /* XXX disallow ap vap delete if WDS still present */ 766 if (parent->if_drv_flags & IFF_DRV_RUNNING) { 767 /* quiesce h/w while we remove the vap */ 768 mwl_hal_intrset(mh, 0); /* disable interrupts */ 769 } 770 ieee80211_vap_detach(vap); 771 switch (opmode) { 772 case IEEE80211_M_HOSTAP: 773 case IEEE80211_M_MBSS: 774 case IEEE80211_M_STA: 775 KASSERT(hvap != NULL, ("no hal vap handle")); 776 (void) mwl_hal_delstation(hvap, vap->iv_myaddr); 777 mwl_hal_delvap(hvap); 778 if (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_MBSS) 779 sc->sc_napvaps--; 780 else 781 sc->sc_nstavaps--; 782 /* XXX don't do it for IEEE80211_CLONE_MACADDR */ 783 reclaim_address(sc, vap->iv_myaddr); 784 break; 785 case IEEE80211_M_WDS: 786 sc->sc_nwdsvaps--; 787 break; 788 default: 789 break; 790 } 791 mwl_cleartxq(sc, vap); 792 free(mvp, M_80211_VAP); 793 if (parent->if_drv_flags & IFF_DRV_RUNNING) 794 mwl_hal_intrset(mh, sc->sc_imask); 795 } 796 797 void 798 mwl_suspend(struct mwl_softc *sc) 799 { 800 struct ifnet *ifp = sc->sc_ifp; 801 802 DPRINTF(sc, MWL_DEBUG_ANY, "%s: if_flags %x\n", 803 __func__, ifp->if_flags); 804 805 mwl_stop(ifp, 1); 806 } 807 808 void 809 mwl_resume(struct mwl_softc *sc) 810 { 811 struct ifnet *ifp = sc->sc_ifp; 812 813 DPRINTF(sc, MWL_DEBUG_ANY, "%s: if_flags %x\n", 814 __func__, ifp->if_flags); 815 816 if (ifp->if_flags & IFF_UP) 817 mwl_init(sc); 818 } 819 820 void 821 mwl_shutdown(void *arg) 822 { 823 struct mwl_softc *sc = arg; 824 825 mwl_stop(sc->sc_ifp, 1); 826 } 827 828 /* 829 * Interrupt handler. Most of the actual processing is deferred. 830 */ 831 void 832 mwl_intr(void *arg) 833 { 834 struct mwl_softc *sc = arg; 835 struct mwl_hal *mh = sc->sc_mh; 836 uint32_t status; 837 838 if (sc->sc_invalid) { 839 /* 840 * The hardware is not ready/present, don't touch anything. 841 * Note this can happen early on if the IRQ is shared. 842 */ 843 DPRINTF(sc, MWL_DEBUG_ANY, "%s: invalid; ignored\n", __func__); 844 return; 845 } 846 /* 847 * Figure out the reason(s) for the interrupt. 848 */ 849 mwl_hal_getisr(mh, &status); /* NB: clears ISR too */ 850 if (status == 0) /* must be a shared irq */ 851 return; 852 853 DPRINTF(sc, MWL_DEBUG_INTR, "%s: status 0x%x imask 0x%x\n", 854 __func__, status, sc->sc_imask); 855 if (status & MACREG_A2HRIC_BIT_RX_RDY) 856 taskqueue_enqueue(sc->sc_tq, &sc->sc_rxtask); 857 if (status & MACREG_A2HRIC_BIT_TX_DONE) 858 taskqueue_enqueue(sc->sc_tq, &sc->sc_txtask); 859 if (status & MACREG_A2HRIC_BIT_BA_WATCHDOG) 860 taskqueue_enqueue(sc->sc_tq, &sc->sc_bawatchdogtask); 861 if (status & MACREG_A2HRIC_BIT_OPC_DONE) 862 mwl_hal_cmddone(mh); 863 if (status & MACREG_A2HRIC_BIT_MAC_EVENT) { 864 ; 865 } 866 if (status & MACREG_A2HRIC_BIT_ICV_ERROR) { 867 /* TKIP ICV error */ 868 sc->sc_stats.mst_rx_badtkipicv++; 869 } 870 if (status & MACREG_A2HRIC_BIT_QUEUE_EMPTY) { 871 /* 11n aggregation queue is empty, re-fill */ 872 ; 873 } 874 if (status & MACREG_A2HRIC_BIT_QUEUE_FULL) { 875 ; 876 } 877 if (status & MACREG_A2HRIC_BIT_RADAR_DETECT) { 878 /* radar detected, process event */ 879 taskqueue_enqueue(sc->sc_tq, &sc->sc_radartask); 880 } 881 if (status & MACREG_A2HRIC_BIT_CHAN_SWITCH) { 882 /* DFS channel switch */ 883 taskqueue_enqueue(sc->sc_tq, &sc->sc_chanswitchtask); 884 } 885 } 886 887 static void 888 mwl_radar_proc(void *arg, int pending) 889 { 890 struct mwl_softc *sc = arg; 891 struct ifnet *ifp = sc->sc_ifp; 892 struct ieee80211com *ic = ifp->if_l2com; 893 894 DPRINTF(sc, MWL_DEBUG_ANY, "%s: radar detected, pending %u\n", 895 __func__, pending); 896 897 sc->sc_stats.mst_radardetect++; 898 /* XXX stop h/w BA streams? */ 899 900 IEEE80211_LOCK(ic); 901 ieee80211_dfs_notify_radar(ic, ic->ic_curchan); 902 IEEE80211_UNLOCK(ic); 903 } 904 905 static void 906 mwl_chanswitch_proc(void *arg, int pending) 907 { 908 struct mwl_softc *sc = arg; 909 struct ifnet *ifp = sc->sc_ifp; 910 struct ieee80211com *ic = ifp->if_l2com; 911 912 DPRINTF(sc, MWL_DEBUG_ANY, "%s: channel switch notice, pending %u\n", 913 __func__, pending); 914 915 IEEE80211_LOCK(ic); 916 sc->sc_csapending = 0; 917 ieee80211_csa_completeswitch(ic); 918 IEEE80211_UNLOCK(ic); 919 } 920 921 static void 922 mwl_bawatchdog(const MWL_HAL_BASTREAM *sp) 923 { 924 struct ieee80211_node *ni = sp->data[0]; 925 926 /* send DELBA and drop the stream */ 927 ieee80211_ampdu_stop(ni, sp->data[1], IEEE80211_REASON_UNSPECIFIED); 928 } 929 930 static void 931 mwl_bawatchdog_proc(void *arg, int pending) 932 { 933 struct mwl_softc *sc = arg; 934 struct mwl_hal *mh = sc->sc_mh; 935 const MWL_HAL_BASTREAM *sp; 936 uint8_t bitmap, n; 937 938 sc->sc_stats.mst_bawatchdog++; 939 940 if (mwl_hal_getwatchdogbitmap(mh, &bitmap) != 0) { 941 DPRINTF(sc, MWL_DEBUG_AMPDU, 942 "%s: could not get bitmap\n", __func__); 943 sc->sc_stats.mst_bawatchdog_failed++; 944 return; 945 } 946 DPRINTF(sc, MWL_DEBUG_AMPDU, "%s: bitmap 0x%x\n", __func__, bitmap); 947 if (bitmap == 0xff) { 948 n = 0; 949 /* disable all ba streams */ 950 for (bitmap = 0; bitmap < 8; bitmap++) { 951 sp = mwl_hal_bastream_lookup(mh, bitmap); 952 if (sp != NULL) { 953 mwl_bawatchdog(sp); 954 n++; 955 } 956 } 957 if (n == 0) { 958 DPRINTF(sc, MWL_DEBUG_AMPDU, 959 "%s: no BA streams found\n", __func__); 960 sc->sc_stats.mst_bawatchdog_empty++; 961 } 962 } else if (bitmap != 0xaa) { 963 /* disable a single ba stream */ 964 sp = mwl_hal_bastream_lookup(mh, bitmap); 965 if (sp != NULL) { 966 mwl_bawatchdog(sp); 967 } else { 968 DPRINTF(sc, MWL_DEBUG_AMPDU, 969 "%s: no BA stream %d\n", __func__, bitmap); 970 sc->sc_stats.mst_bawatchdog_notfound++; 971 } 972 } 973 } 974 975 /* 976 * Convert net80211 channel to a HAL channel. 977 */ 978 static void 979 mwl_mapchan(MWL_HAL_CHANNEL *hc, const struct ieee80211_channel *chan) 980 { 981 hc->channel = chan->ic_ieee; 982 983 *(uint32_t *)&hc->channelFlags = 0; 984 if (IEEE80211_IS_CHAN_2GHZ(chan)) 985 hc->channelFlags.FreqBand = MWL_FREQ_BAND_2DOT4GHZ; 986 else if (IEEE80211_IS_CHAN_5GHZ(chan)) 987 hc->channelFlags.FreqBand = MWL_FREQ_BAND_5GHZ; 988 if (IEEE80211_IS_CHAN_HT40(chan)) { 989 hc->channelFlags.ChnlWidth = MWL_CH_40_MHz_WIDTH; 990 if (IEEE80211_IS_CHAN_HT40U(chan)) 991 hc->channelFlags.ExtChnlOffset = MWL_EXT_CH_ABOVE_CTRL_CH; 992 else 993 hc->channelFlags.ExtChnlOffset = MWL_EXT_CH_BELOW_CTRL_CH; 994 } else 995 hc->channelFlags.ChnlWidth = MWL_CH_20_MHz_WIDTH; 996 /* XXX 10MHz channels */ 997 } 998 999 /* 1000 * Inform firmware of our tx/rx dma setup. The BAR 0 1001 * writes below are for compatibility with older firmware. 1002 * For current firmware we send this information with a 1003 * cmd block via mwl_hal_sethwdma. 1004 */ 1005 static int 1006 mwl_setupdma(struct mwl_softc *sc) 1007 { 1008 int error, i; 1009 1010 sc->sc_hwdma.rxDescRead = sc->sc_rxdma.dd_desc_paddr; 1011 WR4(sc, sc->sc_hwspecs.rxDescRead, sc->sc_hwdma.rxDescRead); 1012 WR4(sc, sc->sc_hwspecs.rxDescWrite, sc->sc_hwdma.rxDescRead); 1013 1014 for (i = 0; i < MWL_NUM_TX_QUEUES-MWL_NUM_ACK_QUEUES; i++) { 1015 struct mwl_txq *txq = &sc->sc_txq[i]; 1016 sc->sc_hwdma.wcbBase[i] = txq->dma.dd_desc_paddr; 1017 WR4(sc, sc->sc_hwspecs.wcbBase[i], sc->sc_hwdma.wcbBase[i]); 1018 } 1019 sc->sc_hwdma.maxNumTxWcb = mwl_txbuf; 1020 sc->sc_hwdma.maxNumWCB = MWL_NUM_TX_QUEUES-MWL_NUM_ACK_QUEUES; 1021 1022 error = mwl_hal_sethwdma(sc->sc_mh, &sc->sc_hwdma); 1023 if (error != 0) { 1024 device_printf(sc->sc_dev, 1025 "unable to setup tx/rx dma; hal status %u\n", error); 1026 /* XXX */ 1027 } 1028 return error; 1029 } 1030 1031 /* 1032 * Inform firmware of tx rate parameters. 1033 * Called after a channel change. 1034 */ 1035 static int 1036 mwl_setcurchanrates(struct mwl_softc *sc) 1037 { 1038 struct ifnet *ifp = sc->sc_ifp; 1039 struct ieee80211com *ic = ifp->if_l2com; 1040 const struct ieee80211_rateset *rs; 1041 MWL_HAL_TXRATE rates; 1042 1043 memset(&rates, 0, sizeof(rates)); 1044 rs = ieee80211_get_suprates(ic, ic->ic_curchan); 1045 /* rate used to send management frames */ 1046 rates.MgtRate = rs->rs_rates[0] & IEEE80211_RATE_VAL; 1047 /* rate used to send multicast frames */ 1048 rates.McastRate = rates.MgtRate; 1049 1050 return mwl_hal_settxrate_auto(sc->sc_mh, &rates); 1051 } 1052 1053 /* 1054 * Inform firmware of tx rate parameters. Called whenever 1055 * user-settable params change and after a channel change. 1056 */ 1057 static int 1058 mwl_setrates(struct ieee80211vap *vap) 1059 { 1060 struct mwl_vap *mvp = MWL_VAP(vap); 1061 struct ieee80211_node *ni = vap->iv_bss; 1062 const struct ieee80211_txparam *tp = ni->ni_txparms; 1063 MWL_HAL_TXRATE rates; 1064 1065 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("state %d", vap->iv_state)); 1066 1067 /* 1068 * Update the h/w rate map. 1069 * NB: 0x80 for MCS is passed through unchanged 1070 */ 1071 memset(&rates, 0, sizeof(rates)); 1072 /* rate used to send management frames */ 1073 rates.MgtRate = tp->mgmtrate; 1074 /* rate used to send multicast frames */ 1075 rates.McastRate = tp->mcastrate; 1076 1077 /* while here calculate EAPOL fixed rate cookie */ 1078 mvp->mv_eapolformat = htole16(mwl_calcformat(rates.MgtRate, ni)); 1079 1080 return mwl_hal_settxrate(mvp->mv_hvap, 1081 tp->ucastrate != IEEE80211_FIXED_RATE_NONE ? 1082 RATE_FIXED : RATE_AUTO, &rates); 1083 } 1084 1085 /* 1086 * Setup a fixed xmit rate cookie for EAPOL frames. 1087 */ 1088 static void 1089 mwl_seteapolformat(struct ieee80211vap *vap) 1090 { 1091 struct mwl_vap *mvp = MWL_VAP(vap); 1092 struct ieee80211_node *ni = vap->iv_bss; 1093 enum ieee80211_phymode mode; 1094 uint8_t rate; 1095 1096 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("state %d", vap->iv_state)); 1097 1098 mode = ieee80211_chan2mode(ni->ni_chan); 1099 /* 1100 * Use legacy rates when operating a mixed HT+non-HT bss. 1101 * NB: this may violate POLA for sta and wds vap's. 1102 */ 1103 if (mode == IEEE80211_MODE_11NA && 1104 (vap->iv_flags_ht & IEEE80211_FHT_PUREN) == 0) 1105 rate = vap->iv_txparms[IEEE80211_MODE_11A].mgmtrate; 1106 else if (mode == IEEE80211_MODE_11NG && 1107 (vap->iv_flags_ht & IEEE80211_FHT_PUREN) == 0) 1108 rate = vap->iv_txparms[IEEE80211_MODE_11G].mgmtrate; 1109 else 1110 rate = vap->iv_txparms[mode].mgmtrate; 1111 1112 mvp->mv_eapolformat = htole16(mwl_calcformat(rate, ni)); 1113 } 1114 1115 /* 1116 * Map SKU+country code to region code for radar bin'ing. 1117 */ 1118 static int 1119 mwl_map2regioncode(const struct ieee80211_regdomain *rd) 1120 { 1121 switch (rd->regdomain) { 1122 case SKU_FCC: 1123 case SKU_FCC3: 1124 return DOMAIN_CODE_FCC; 1125 case SKU_CA: 1126 return DOMAIN_CODE_IC; 1127 case SKU_ETSI: 1128 case SKU_ETSI2: 1129 case SKU_ETSI3: 1130 if (rd->country == CTRY_SPAIN) 1131 return DOMAIN_CODE_SPAIN; 1132 if (rd->country == CTRY_FRANCE || rd->country == CTRY_FRANCE2) 1133 return DOMAIN_CODE_FRANCE; 1134 /* XXX force 1.3.1 radar type */ 1135 return DOMAIN_CODE_ETSI_131; 1136 case SKU_JAPAN: 1137 return DOMAIN_CODE_MKK; 1138 case SKU_ROW: 1139 return DOMAIN_CODE_DGT; /* Taiwan */ 1140 case SKU_APAC: 1141 case SKU_APAC2: 1142 case SKU_APAC3: 1143 return DOMAIN_CODE_AUS; /* Australia */ 1144 } 1145 /* XXX KOREA? */ 1146 return DOMAIN_CODE_FCC; /* XXX? */ 1147 } 1148 1149 static int 1150 mwl_hal_reset(struct mwl_softc *sc) 1151 { 1152 struct ifnet *ifp = sc->sc_ifp; 1153 struct ieee80211com *ic = ifp->if_l2com; 1154 struct mwl_hal *mh = sc->sc_mh; 1155 1156 mwl_hal_setantenna(mh, WL_ANTENNATYPE_RX, sc->sc_rxantenna); 1157 mwl_hal_setantenna(mh, WL_ANTENNATYPE_TX, sc->sc_txantenna); 1158 mwl_hal_setradio(mh, 1, WL_AUTO_PREAMBLE); 1159 mwl_hal_setwmm(sc->sc_mh, (ic->ic_flags & IEEE80211_F_WME) != 0); 1160 mwl_chan_set(sc, ic->ic_curchan); 1161 /* NB: RF/RA performance tuned for indoor mode */ 1162 mwl_hal_setrateadaptmode(mh, 0); 1163 mwl_hal_setoptimizationlevel(mh, 1164 (ic->ic_flags & IEEE80211_F_BURST) != 0); 1165 1166 mwl_hal_setregioncode(mh, mwl_map2regioncode(&ic->ic_regdomain)); 1167 1168 mwl_hal_setaggampduratemode(mh, 1, 80); /* XXX */ 1169 mwl_hal_setcfend(mh, 0); /* XXX */ 1170 1171 return 1; 1172 } 1173 1174 static int 1175 mwl_init_locked(struct mwl_softc *sc) 1176 { 1177 struct ifnet *ifp = sc->sc_ifp; 1178 struct mwl_hal *mh = sc->sc_mh; 1179 int error = 0; 1180 1181 DPRINTF(sc, MWL_DEBUG_ANY, "%s: if_flags 0x%x\n", 1182 __func__, ifp->if_flags); 1183 1184 MWL_LOCK_ASSERT(sc); 1185 1186 /* 1187 * Stop anything previously setup. This is safe 1188 * whether this is the first time through or not. 1189 */ 1190 mwl_stop_locked(ifp, 0); 1191 1192 /* 1193 * Push vap-independent state to the firmware. 1194 */ 1195 if (!mwl_hal_reset(sc)) { 1196 if_printf(ifp, "unable to reset hardware\n"); 1197 return EIO; 1198 } 1199 1200 /* 1201 * Setup recv (once); transmit is already good to go. 1202 */ 1203 error = mwl_startrecv(sc); 1204 if (error != 0) { 1205 if_printf(ifp, "unable to start recv logic\n"); 1206 return error; 1207 } 1208 1209 /* 1210 * Enable interrupts. 1211 */ 1212 sc->sc_imask = MACREG_A2HRIC_BIT_RX_RDY 1213 | MACREG_A2HRIC_BIT_TX_DONE 1214 | MACREG_A2HRIC_BIT_OPC_DONE 1215 #if 0 1216 | MACREG_A2HRIC_BIT_MAC_EVENT 1217 #endif 1218 | MACREG_A2HRIC_BIT_ICV_ERROR 1219 | MACREG_A2HRIC_BIT_RADAR_DETECT 1220 | MACREG_A2HRIC_BIT_CHAN_SWITCH 1221 #if 0 1222 | MACREG_A2HRIC_BIT_QUEUE_EMPTY 1223 #endif 1224 | MACREG_A2HRIC_BIT_BA_WATCHDOG 1225 | MACREQ_A2HRIC_BIT_TX_ACK 1226 ; 1227 1228 ifp->if_drv_flags |= IFF_DRV_RUNNING; 1229 mwl_hal_intrset(mh, sc->sc_imask); 1230 callout_reset(&sc->sc_watchdog, hz, mwl_watchdog, sc); 1231 1232 return 0; 1233 } 1234 1235 static void 1236 mwl_init(void *arg) 1237 { 1238 struct mwl_softc *sc = arg; 1239 struct ifnet *ifp = sc->sc_ifp; 1240 struct ieee80211com *ic = ifp->if_l2com; 1241 int error = 0; 1242 1243 DPRINTF(sc, MWL_DEBUG_ANY, "%s: if_flags 0x%x\n", 1244 __func__, ifp->if_flags); 1245 1246 MWL_LOCK(sc); 1247 error = mwl_init_locked(sc); 1248 MWL_UNLOCK(sc); 1249 1250 if (error == 0) 1251 ieee80211_start_all(ic); /* start all vap's */ 1252 } 1253 1254 static void 1255 mwl_stop_locked(struct ifnet *ifp, int disable) 1256 { 1257 struct mwl_softc *sc = ifp->if_softc; 1258 1259 DPRINTF(sc, MWL_DEBUG_ANY, "%s: invalid %u if_flags 0x%x\n", 1260 __func__, sc->sc_invalid, ifp->if_flags); 1261 1262 MWL_LOCK_ASSERT(sc); 1263 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1264 /* 1265 * Shutdown the hardware and driver. 1266 */ 1267 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1268 callout_stop(&sc->sc_watchdog); 1269 sc->sc_tx_timer = 0; 1270 mwl_draintxq(sc); 1271 } 1272 } 1273 1274 static void 1275 mwl_stop(struct ifnet *ifp, int disable) 1276 { 1277 struct mwl_softc *sc = ifp->if_softc; 1278 1279 MWL_LOCK(sc); 1280 mwl_stop_locked(ifp, disable); 1281 MWL_UNLOCK(sc); 1282 } 1283 1284 static int 1285 mwl_reset_vap(struct ieee80211vap *vap, int state) 1286 { 1287 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1288 struct ieee80211com *ic = vap->iv_ic; 1289 1290 if (state == IEEE80211_S_RUN) 1291 mwl_setrates(vap); 1292 /* XXX off by 1? */ 1293 mwl_hal_setrtsthreshold(hvap, vap->iv_rtsthreshold); 1294 /* XXX auto? 20/40 split? */ 1295 mwl_hal_sethtgi(hvap, (vap->iv_flags_ht & 1296 (IEEE80211_FHT_SHORTGI20|IEEE80211_FHT_SHORTGI40)) ? 1 : 0); 1297 mwl_hal_setnprot(hvap, ic->ic_htprotmode == IEEE80211_PROT_NONE ? 1298 HTPROTECT_NONE : HTPROTECT_AUTO); 1299 /* XXX txpower cap */ 1300 1301 /* re-setup beacons */ 1302 if (state == IEEE80211_S_RUN && 1303 (vap->iv_opmode == IEEE80211_M_HOSTAP || 1304 vap->iv_opmode == IEEE80211_M_MBSS || 1305 vap->iv_opmode == IEEE80211_M_IBSS)) { 1306 mwl_setapmode(vap, vap->iv_bss->ni_chan); 1307 mwl_hal_setnprotmode(hvap, 1308 MS(ic->ic_curhtprotmode, IEEE80211_HTINFO_OPMODE)); 1309 return mwl_beacon_setup(vap); 1310 } 1311 return 0; 1312 } 1313 1314 /* 1315 * Reset the hardware w/o losing operational state. 1316 * Used to to reset or reload hardware state for a vap. 1317 */ 1318 static int 1319 mwl_reset(struct ieee80211vap *vap, u_long cmd) 1320 { 1321 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1322 int error = 0; 1323 1324 if (hvap != NULL) { /* WDS, MONITOR, etc. */ 1325 struct ieee80211com *ic = vap->iv_ic; 1326 struct ifnet *ifp = ic->ic_ifp; 1327 struct mwl_softc *sc = ifp->if_softc; 1328 struct mwl_hal *mh = sc->sc_mh; 1329 1330 /* XXX handle DWDS sta vap change */ 1331 /* XXX do we need to disable interrupts? */ 1332 mwl_hal_intrset(mh, 0); /* disable interrupts */ 1333 error = mwl_reset_vap(vap, vap->iv_state); 1334 mwl_hal_intrset(mh, sc->sc_imask); 1335 } 1336 return error; 1337 } 1338 1339 /* 1340 * Allocate a tx buffer for sending a frame. The 1341 * packet is assumed to have the WME AC stored so 1342 * we can use it to select the appropriate h/w queue. 1343 */ 1344 static struct mwl_txbuf * 1345 mwl_gettxbuf(struct mwl_softc *sc, struct mwl_txq *txq) 1346 { 1347 struct mwl_txbuf *bf; 1348 1349 /* 1350 * Grab a TX buffer and associated resources. 1351 */ 1352 MWL_TXQ_LOCK(txq); 1353 bf = STAILQ_FIRST(&txq->free); 1354 if (bf != NULL) { 1355 STAILQ_REMOVE_HEAD(&txq->free, bf_list); 1356 txq->nfree--; 1357 } 1358 MWL_TXQ_UNLOCK(txq); 1359 if (bf == NULL) 1360 DPRINTF(sc, MWL_DEBUG_XMIT, 1361 "%s: out of xmit buffers on q %d\n", __func__, txq->qnum); 1362 return bf; 1363 } 1364 1365 /* 1366 * Return a tx buffer to the queue it came from. Note there 1367 * are two cases because we must preserve the order of buffers 1368 * as it reflects the fixed order of descriptors in memory 1369 * (the firmware pre-fetches descriptors so we cannot reorder). 1370 */ 1371 static void 1372 mwl_puttxbuf_head(struct mwl_txq *txq, struct mwl_txbuf *bf) 1373 { 1374 bf->bf_m = NULL; 1375 bf->bf_node = NULL; 1376 MWL_TXQ_LOCK(txq); 1377 STAILQ_INSERT_HEAD(&txq->free, bf, bf_list); 1378 txq->nfree++; 1379 MWL_TXQ_UNLOCK(txq); 1380 } 1381 1382 static void 1383 mwl_puttxbuf_tail(struct mwl_txq *txq, struct mwl_txbuf *bf) 1384 { 1385 bf->bf_m = NULL; 1386 bf->bf_node = NULL; 1387 MWL_TXQ_LOCK(txq); 1388 STAILQ_INSERT_TAIL(&txq->free, bf, bf_list); 1389 txq->nfree++; 1390 MWL_TXQ_UNLOCK(txq); 1391 } 1392 1393 static void 1394 mwl_start(struct ifnet *ifp) 1395 { 1396 struct mwl_softc *sc = ifp->if_softc; 1397 struct ieee80211_node *ni; 1398 struct mwl_txbuf *bf; 1399 struct mbuf *m; 1400 struct mwl_txq *txq = NULL; /* XXX silence gcc */ 1401 int nqueued; 1402 1403 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || sc->sc_invalid) 1404 return; 1405 nqueued = 0; 1406 for (;;) { 1407 bf = NULL; 1408 IFQ_DEQUEUE(&ifp->if_snd, m); 1409 if (m == NULL) 1410 break; 1411 /* 1412 * Grab the node for the destination. 1413 */ 1414 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1415 KASSERT(ni != NULL, ("no node")); 1416 m->m_pkthdr.rcvif = NULL; /* committed, clear ref */ 1417 /* 1418 * Grab a TX buffer and associated resources. 1419 * We honor the classification by the 802.11 layer. 1420 */ 1421 txq = sc->sc_ac2q[M_WME_GETAC(m)]; 1422 bf = mwl_gettxbuf(sc, txq); 1423 if (bf == NULL) { 1424 m_freem(m); 1425 ieee80211_free_node(ni); 1426 #ifdef MWL_TX_NODROP 1427 sc->sc_stats.mst_tx_qstop++; 1428 /* XXX blocks other traffic */ 1429 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1430 break; 1431 #else 1432 DPRINTF(sc, MWL_DEBUG_XMIT, 1433 "%s: tail drop on q %d\n", __func__, txq->qnum); 1434 sc->sc_stats.mst_tx_qdrop++; 1435 continue; 1436 #endif /* MWL_TX_NODROP */ 1437 } 1438 1439 /* 1440 * Pass the frame to the h/w for transmission. 1441 */ 1442 if (mwl_tx_start(sc, ni, bf, m)) { 1443 ifp->if_oerrors++; 1444 mwl_puttxbuf_head(txq, bf); 1445 ieee80211_free_node(ni); 1446 continue; 1447 } 1448 nqueued++; 1449 if (nqueued >= mwl_txcoalesce) { 1450 /* 1451 * Poke the firmware to process queued frames; 1452 * see below about (lack of) locking. 1453 */ 1454 nqueued = 0; 1455 mwl_hal_txstart(sc->sc_mh, 0/*XXX*/); 1456 } 1457 } 1458 if (nqueued) { 1459 /* 1460 * NB: We don't need to lock against tx done because 1461 * this just prods the firmware to check the transmit 1462 * descriptors. The firmware will also start fetching 1463 * descriptors by itself if it notices new ones are 1464 * present when it goes to deliver a tx done interrupt 1465 * to the host. So if we race with tx done processing 1466 * it's ok. Delivering the kick here rather than in 1467 * mwl_tx_start is an optimization to avoid poking the 1468 * firmware for each packet. 1469 * 1470 * NB: the queue id isn't used so 0 is ok. 1471 */ 1472 mwl_hal_txstart(sc->sc_mh, 0/*XXX*/); 1473 } 1474 } 1475 1476 static int 1477 mwl_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1478 const struct ieee80211_bpf_params *params) 1479 { 1480 struct ieee80211com *ic = ni->ni_ic; 1481 struct ifnet *ifp = ic->ic_ifp; 1482 struct mwl_softc *sc = ifp->if_softc; 1483 struct mwl_txbuf *bf; 1484 struct mwl_txq *txq; 1485 1486 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || sc->sc_invalid) { 1487 ieee80211_free_node(ni); 1488 m_freem(m); 1489 return ENETDOWN; 1490 } 1491 /* 1492 * Grab a TX buffer and associated resources. 1493 * Note that we depend on the classification 1494 * by the 802.11 layer to get to the right h/w 1495 * queue. Management frames must ALWAYS go on 1496 * queue 1 but we cannot just force that here 1497 * because we may receive non-mgt frames. 1498 */ 1499 txq = sc->sc_ac2q[M_WME_GETAC(m)]; 1500 bf = mwl_gettxbuf(sc, txq); 1501 if (bf == NULL) { 1502 sc->sc_stats.mst_tx_qstop++; 1503 /* XXX blocks other traffic */ 1504 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1505 ieee80211_free_node(ni); 1506 m_freem(m); 1507 return ENOBUFS; 1508 } 1509 /* 1510 * Pass the frame to the h/w for transmission. 1511 */ 1512 if (mwl_tx_start(sc, ni, bf, m)) { 1513 ifp->if_oerrors++; 1514 mwl_puttxbuf_head(txq, bf); 1515 1516 ieee80211_free_node(ni); 1517 return EIO; /* XXX */ 1518 } 1519 /* 1520 * NB: We don't need to lock against tx done because 1521 * this just prods the firmware to check the transmit 1522 * descriptors. The firmware will also start fetching 1523 * descriptors by itself if it notices new ones are 1524 * present when it goes to deliver a tx done interrupt 1525 * to the host. So if we race with tx done processing 1526 * it's ok. Delivering the kick here rather than in 1527 * mwl_tx_start is an optimization to avoid poking the 1528 * firmware for each packet. 1529 * 1530 * NB: the queue id isn't used so 0 is ok. 1531 */ 1532 mwl_hal_txstart(sc->sc_mh, 0/*XXX*/); 1533 return 0; 1534 } 1535 1536 static int 1537 mwl_media_change(struct ifnet *ifp) 1538 { 1539 struct ieee80211vap *vap = ifp->if_softc; 1540 int error; 1541 1542 error = ieee80211_media_change(ifp); 1543 /* NB: only the fixed rate can change and that doesn't need a reset */ 1544 if (error == ENETRESET) { 1545 mwl_setrates(vap); 1546 error = 0; 1547 } 1548 return error; 1549 } 1550 1551 #ifdef MWL_DEBUG 1552 static void 1553 mwl_keyprint(struct mwl_softc *sc, const char *tag, 1554 const MWL_HAL_KEYVAL *hk, const uint8_t mac[IEEE80211_ADDR_LEN]) 1555 { 1556 static const char *ciphers[] = { 1557 "WEP", 1558 "TKIP", 1559 "AES-CCM", 1560 }; 1561 int i, n; 1562 1563 printf("%s: [%u] %-7s", tag, hk->keyIndex, ciphers[hk->keyTypeId]); 1564 for (i = 0, n = hk->keyLen; i < n; i++) 1565 printf(" %02x", hk->key.aes[i]); 1566 printf(" mac %s", ether_sprintf(mac)); 1567 if (hk->keyTypeId == KEY_TYPE_ID_TKIP) { 1568 printf(" %s", "rxmic"); 1569 for (i = 0; i < sizeof(hk->key.tkip.rxMic); i++) 1570 printf(" %02x", hk->key.tkip.rxMic[i]); 1571 printf(" txmic"); 1572 for (i = 0; i < sizeof(hk->key.tkip.txMic); i++) 1573 printf(" %02x", hk->key.tkip.txMic[i]); 1574 } 1575 printf(" flags 0x%x\n", hk->keyFlags); 1576 } 1577 #endif 1578 1579 /* 1580 * Allocate a key cache slot for a unicast key. The 1581 * firmware handles key allocation and every station is 1582 * guaranteed key space so we are always successful. 1583 */ 1584 static int 1585 mwl_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 1586 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 1587 { 1588 struct mwl_softc *sc = vap->iv_ic->ic_ifp->if_softc; 1589 1590 if (k->wk_keyix != IEEE80211_KEYIX_NONE || 1591 (k->wk_flags & IEEE80211_KEY_GROUP)) { 1592 if (!(&vap->iv_nw_keys[0] <= k && 1593 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) { 1594 /* should not happen */ 1595 DPRINTF(sc, MWL_DEBUG_KEYCACHE, 1596 "%s: bogus group key\n", __func__); 1597 return 0; 1598 } 1599 /* give the caller what they requested */ 1600 *keyix = *rxkeyix = k - vap->iv_nw_keys; 1601 } else { 1602 /* 1603 * Firmware handles key allocation. 1604 */ 1605 *keyix = *rxkeyix = 0; 1606 } 1607 return 1; 1608 } 1609 1610 /* 1611 * Delete a key entry allocated by mwl_key_alloc. 1612 */ 1613 static int 1614 mwl_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 1615 { 1616 struct mwl_softc *sc = vap->iv_ic->ic_ifp->if_softc; 1617 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1618 MWL_HAL_KEYVAL hk; 1619 const uint8_t bcastaddr[IEEE80211_ADDR_LEN] = 1620 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 1621 1622 if (hvap == NULL) { 1623 if (vap->iv_opmode != IEEE80211_M_WDS) { 1624 /* XXX monitor mode? */ 1625 DPRINTF(sc, MWL_DEBUG_KEYCACHE, 1626 "%s: no hvap for opmode %d\n", __func__, 1627 vap->iv_opmode); 1628 return 0; 1629 } 1630 hvap = MWL_VAP(vap)->mv_ap_hvap; 1631 } 1632 1633 DPRINTF(sc, MWL_DEBUG_KEYCACHE, "%s: delete key %u\n", 1634 __func__, k->wk_keyix); 1635 1636 memset(&hk, 0, sizeof(hk)); 1637 hk.keyIndex = k->wk_keyix; 1638 switch (k->wk_cipher->ic_cipher) { 1639 case IEEE80211_CIPHER_WEP: 1640 hk.keyTypeId = KEY_TYPE_ID_WEP; 1641 break; 1642 case IEEE80211_CIPHER_TKIP: 1643 hk.keyTypeId = KEY_TYPE_ID_TKIP; 1644 break; 1645 case IEEE80211_CIPHER_AES_CCM: 1646 hk.keyTypeId = KEY_TYPE_ID_AES; 1647 break; 1648 default: 1649 /* XXX should not happen */ 1650 DPRINTF(sc, MWL_DEBUG_KEYCACHE, "%s: unknown cipher %d\n", 1651 __func__, k->wk_cipher->ic_cipher); 1652 return 0; 1653 } 1654 return (mwl_hal_keyreset(hvap, &hk, bcastaddr) == 0); /*XXX*/ 1655 } 1656 1657 static __inline int 1658 addgroupflags(MWL_HAL_KEYVAL *hk, const struct ieee80211_key *k) 1659 { 1660 if (k->wk_flags & IEEE80211_KEY_GROUP) { 1661 if (k->wk_flags & IEEE80211_KEY_XMIT) 1662 hk->keyFlags |= KEY_FLAG_TXGROUPKEY; 1663 if (k->wk_flags & IEEE80211_KEY_RECV) 1664 hk->keyFlags |= KEY_FLAG_RXGROUPKEY; 1665 return 1; 1666 } else 1667 return 0; 1668 } 1669 1670 /* 1671 * Set the key cache contents for the specified key. Key cache 1672 * slot(s) must already have been allocated by mwl_key_alloc. 1673 */ 1674 static int 1675 mwl_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k, 1676 const uint8_t mac[IEEE80211_ADDR_LEN]) 1677 { 1678 #define GRPXMIT (IEEE80211_KEY_XMIT | IEEE80211_KEY_GROUP) 1679 /* NB: static wep keys are marked GROUP+tx/rx; GTK will be tx or rx */ 1680 #define IEEE80211_IS_STATICKEY(k) \ 1681 (((k)->wk_flags & (GRPXMIT|IEEE80211_KEY_RECV)) == \ 1682 (GRPXMIT|IEEE80211_KEY_RECV)) 1683 struct mwl_softc *sc = vap->iv_ic->ic_ifp->if_softc; 1684 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1685 const struct ieee80211_cipher *cip = k->wk_cipher; 1686 const uint8_t *macaddr; 1687 MWL_HAL_KEYVAL hk; 1688 1689 KASSERT((k->wk_flags & IEEE80211_KEY_SWCRYPT) == 0, 1690 ("s/w crypto set?")); 1691 1692 if (hvap == NULL) { 1693 if (vap->iv_opmode != IEEE80211_M_WDS) { 1694 /* XXX monitor mode? */ 1695 DPRINTF(sc, MWL_DEBUG_KEYCACHE, 1696 "%s: no hvap for opmode %d\n", __func__, 1697 vap->iv_opmode); 1698 return 0; 1699 } 1700 hvap = MWL_VAP(vap)->mv_ap_hvap; 1701 } 1702 memset(&hk, 0, sizeof(hk)); 1703 hk.keyIndex = k->wk_keyix; 1704 switch (cip->ic_cipher) { 1705 case IEEE80211_CIPHER_WEP: 1706 hk.keyTypeId = KEY_TYPE_ID_WEP; 1707 hk.keyLen = k->wk_keylen; 1708 if (k->wk_keyix == vap->iv_def_txkey) 1709 hk.keyFlags = KEY_FLAG_WEP_TXKEY; 1710 if (!IEEE80211_IS_STATICKEY(k)) { 1711 /* NB: WEP is never used for the PTK */ 1712 (void) addgroupflags(&hk, k); 1713 } 1714 break; 1715 case IEEE80211_CIPHER_TKIP: 1716 hk.keyTypeId = KEY_TYPE_ID_TKIP; 1717 hk.key.tkip.tsc.high = (uint32_t)(k->wk_keytsc >> 16); 1718 hk.key.tkip.tsc.low = (uint16_t)k->wk_keytsc; 1719 hk.keyFlags = KEY_FLAG_TSC_VALID | KEY_FLAG_MICKEY_VALID; 1720 hk.keyLen = k->wk_keylen + IEEE80211_MICBUF_SIZE; 1721 if (!addgroupflags(&hk, k)) 1722 hk.keyFlags |= KEY_FLAG_PAIRWISE; 1723 break; 1724 case IEEE80211_CIPHER_AES_CCM: 1725 hk.keyTypeId = KEY_TYPE_ID_AES; 1726 hk.keyLen = k->wk_keylen; 1727 if (!addgroupflags(&hk, k)) 1728 hk.keyFlags |= KEY_FLAG_PAIRWISE; 1729 break; 1730 default: 1731 /* XXX should not happen */ 1732 DPRINTF(sc, MWL_DEBUG_KEYCACHE, "%s: unknown cipher %d\n", 1733 __func__, k->wk_cipher->ic_cipher); 1734 return 0; 1735 } 1736 /* 1737 * NB: tkip mic keys get copied here too; the layout 1738 * just happens to match that in ieee80211_key. 1739 */ 1740 memcpy(hk.key.aes, k->wk_key, hk.keyLen); 1741 1742 /* 1743 * Locate address of sta db entry for writing key; 1744 * the convention unfortunately is somewhat different 1745 * than how net80211, hostapd, and wpa_supplicant think. 1746 */ 1747 if (vap->iv_opmode == IEEE80211_M_STA) { 1748 /* 1749 * NB: keys plumbed before the sta reaches AUTH state 1750 * will be discarded or written to the wrong sta db 1751 * entry because iv_bss is meaningless. This is ok 1752 * (right now) because we handle deferred plumbing of 1753 * WEP keys when the sta reaches AUTH state. 1754 */ 1755 macaddr = vap->iv_bss->ni_bssid; 1756 if ((k->wk_flags & IEEE80211_KEY_GROUP) == 0) { 1757 /* XXX plumb to local sta db too for static key wep */ 1758 mwl_hal_keyset(hvap, &hk, vap->iv_myaddr); 1759 } 1760 } else if (vap->iv_opmode == IEEE80211_M_WDS && 1761 vap->iv_state != IEEE80211_S_RUN) { 1762 /* 1763 * Prior to RUN state a WDS vap will not it's BSS node 1764 * setup so we will plumb the key to the wrong mac 1765 * address (it'll be our local address). Workaround 1766 * this for the moment by grabbing the correct address. 1767 */ 1768 macaddr = vap->iv_des_bssid; 1769 } else if ((k->wk_flags & GRPXMIT) == GRPXMIT) 1770 macaddr = vap->iv_myaddr; 1771 else 1772 macaddr = mac; 1773 KEYPRINTF(sc, &hk, macaddr); 1774 return (mwl_hal_keyset(hvap, &hk, macaddr) == 0); 1775 #undef IEEE80211_IS_STATICKEY 1776 #undef GRPXMIT 1777 } 1778 1779 /* unaligned little endian access */ 1780 #define LE_READ_2(p) \ 1781 ((uint16_t) \ 1782 ((((const uint8_t *)(p))[0] ) | \ 1783 (((const uint8_t *)(p))[1] << 8))) 1784 #define LE_READ_4(p) \ 1785 ((uint32_t) \ 1786 ((((const uint8_t *)(p))[0] ) | \ 1787 (((const uint8_t *)(p))[1] << 8) | \ 1788 (((const uint8_t *)(p))[2] << 16) | \ 1789 (((const uint8_t *)(p))[3] << 24))) 1790 1791 /* 1792 * Set the multicast filter contents into the hardware. 1793 * XXX f/w has no support; just defer to the os. 1794 */ 1795 static void 1796 mwl_setmcastfilter(struct mwl_softc *sc) 1797 { 1798 struct ifnet *ifp = sc->sc_ifp; 1799 #if 0 1800 struct ether_multi *enm; 1801 struct ether_multistep estep; 1802 uint8_t macs[IEEE80211_ADDR_LEN*MWL_HAL_MCAST_MAX];/* XXX stack use */ 1803 uint8_t *mp; 1804 int nmc; 1805 1806 mp = macs; 1807 nmc = 0; 1808 ETHER_FIRST_MULTI(estep, &sc->sc_ec, enm); 1809 while (enm != NULL) { 1810 /* XXX Punt on ranges. */ 1811 if (nmc == MWL_HAL_MCAST_MAX || 1812 !IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi)) { 1813 ifp->if_flags |= IFF_ALLMULTI; 1814 return; 1815 } 1816 IEEE80211_ADDR_COPY(mp, enm->enm_addrlo); 1817 mp += IEEE80211_ADDR_LEN, nmc++; 1818 ETHER_NEXT_MULTI(estep, enm); 1819 } 1820 ifp->if_flags &= ~IFF_ALLMULTI; 1821 mwl_hal_setmcast(sc->sc_mh, nmc, macs); 1822 #else 1823 /* XXX no mcast filter support; we get everything */ 1824 ifp->if_flags |= IFF_ALLMULTI; 1825 #endif 1826 } 1827 1828 static int 1829 mwl_mode_init(struct mwl_softc *sc) 1830 { 1831 struct ifnet *ifp = sc->sc_ifp; 1832 struct ieee80211com *ic = ifp->if_l2com; 1833 struct mwl_hal *mh = sc->sc_mh; 1834 1835 /* 1836 * NB: Ignore promisc in hostap mode; it's set by the 1837 * bridge. This is wrong but we have no way to 1838 * identify internal requests (from the bridge) 1839 * versus external requests such as for tcpdump. 1840 */ 1841 mwl_hal_setpromisc(mh, (ifp->if_flags & IFF_PROMISC) && 1842 ic->ic_opmode != IEEE80211_M_HOSTAP); 1843 mwl_setmcastfilter(sc); 1844 1845 return 0; 1846 } 1847 1848 /* 1849 * Callback from the 802.11 layer after a multicast state change. 1850 */ 1851 static void 1852 mwl_update_mcast(struct ifnet *ifp) 1853 { 1854 struct mwl_softc *sc = ifp->if_softc; 1855 1856 mwl_setmcastfilter(sc); 1857 } 1858 1859 /* 1860 * Callback from the 802.11 layer after a promiscuous mode change. 1861 * Note this interface does not check the operating mode as this 1862 * is an internal callback and we are expected to honor the current 1863 * state (e.g. this is used for setting the interface in promiscuous 1864 * mode when operating in hostap mode to do ACS). 1865 */ 1866 static void 1867 mwl_update_promisc(struct ifnet *ifp) 1868 { 1869 struct mwl_softc *sc = ifp->if_softc; 1870 1871 mwl_hal_setpromisc(sc->sc_mh, (ifp->if_flags & IFF_PROMISC) != 0); 1872 } 1873 1874 /* 1875 * Callback from the 802.11 layer to update the slot time 1876 * based on the current setting. We use it to notify the 1877 * firmware of ERP changes and the f/w takes care of things 1878 * like slot time and preamble. 1879 */ 1880 static void 1881 mwl_updateslot(struct ifnet *ifp) 1882 { 1883 struct mwl_softc *sc = ifp->if_softc; 1884 struct ieee80211com *ic = ifp->if_l2com; 1885 struct mwl_hal *mh = sc->sc_mh; 1886 int prot; 1887 1888 /* NB: can be called early; suppress needless cmds */ 1889 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1890 return; 1891 1892 /* 1893 * Calculate the ERP flags. The firwmare will use 1894 * this to carry out the appropriate measures. 1895 */ 1896 prot = 0; 1897 if (IEEE80211_IS_CHAN_ANYG(ic->ic_curchan)) { 1898 if ((ic->ic_flags & IEEE80211_F_SHSLOT) == 0) 1899 prot |= IEEE80211_ERP_NON_ERP_PRESENT; 1900 if (ic->ic_flags & IEEE80211_F_USEPROT) 1901 prot |= IEEE80211_ERP_USE_PROTECTION; 1902 if (ic->ic_flags & IEEE80211_F_USEBARKER) 1903 prot |= IEEE80211_ERP_LONG_PREAMBLE; 1904 } 1905 1906 DPRINTF(sc, MWL_DEBUG_RESET, 1907 "%s: chan %u MHz/flags 0x%x %s slot, (prot 0x%x ic_flags 0x%x)\n", 1908 __func__, ic->ic_curchan->ic_freq, ic->ic_curchan->ic_flags, 1909 ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long", prot, 1910 ic->ic_flags); 1911 1912 mwl_hal_setgprot(mh, prot); 1913 } 1914 1915 /* 1916 * Setup the beacon frame. 1917 */ 1918 static int 1919 mwl_beacon_setup(struct ieee80211vap *vap) 1920 { 1921 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1922 struct ieee80211_node *ni = vap->iv_bss; 1923 struct ieee80211_beacon_offsets bo; 1924 struct mbuf *m; 1925 1926 m = ieee80211_beacon_alloc(ni, &bo); 1927 if (m == NULL) 1928 return ENOBUFS; 1929 mwl_hal_setbeacon(hvap, mtod(m, const void *), m->m_len); 1930 m_free(m); 1931 1932 return 0; 1933 } 1934 1935 /* 1936 * Update the beacon frame in response to a change. 1937 */ 1938 static void 1939 mwl_beacon_update(struct ieee80211vap *vap, int item) 1940 { 1941 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1942 struct ieee80211com *ic = vap->iv_ic; 1943 1944 KASSERT(hvap != NULL, ("no beacon")); 1945 switch (item) { 1946 case IEEE80211_BEACON_ERP: 1947 mwl_updateslot(ic->ic_ifp); 1948 break; 1949 case IEEE80211_BEACON_HTINFO: 1950 mwl_hal_setnprotmode(hvap, 1951 MS(ic->ic_curhtprotmode, IEEE80211_HTINFO_OPMODE)); 1952 break; 1953 case IEEE80211_BEACON_CAPS: 1954 case IEEE80211_BEACON_WME: 1955 case IEEE80211_BEACON_APPIE: 1956 case IEEE80211_BEACON_CSA: 1957 break; 1958 case IEEE80211_BEACON_TIM: 1959 /* NB: firmware always forms TIM */ 1960 return; 1961 } 1962 /* XXX retain beacon frame and update */ 1963 mwl_beacon_setup(vap); 1964 } 1965 1966 static void 1967 mwl_load_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1968 { 1969 bus_addr_t *paddr = (bus_addr_t*) arg; 1970 KASSERT(error == 0, ("error %u on bus_dma callback", error)); 1971 *paddr = segs->ds_addr; 1972 } 1973 1974 #ifdef MWL_HOST_PS_SUPPORT 1975 /* 1976 * Handle power save station occupancy changes. 1977 */ 1978 static void 1979 mwl_update_ps(struct ieee80211vap *vap, int nsta) 1980 { 1981 struct mwl_vap *mvp = MWL_VAP(vap); 1982 1983 if (nsta == 0 || mvp->mv_last_ps_sta == 0) 1984 mwl_hal_setpowersave_bss(mvp->mv_hvap, nsta); 1985 mvp->mv_last_ps_sta = nsta; 1986 } 1987 1988 /* 1989 * Handle associated station power save state changes. 1990 */ 1991 static int 1992 mwl_set_tim(struct ieee80211_node *ni, int set) 1993 { 1994 struct ieee80211vap *vap = ni->ni_vap; 1995 struct mwl_vap *mvp = MWL_VAP(vap); 1996 1997 if (mvp->mv_set_tim(ni, set)) { /* NB: state change */ 1998 mwl_hal_setpowersave_sta(mvp->mv_hvap, 1999 IEEE80211_AID(ni->ni_associd), set); 2000 return 1; 2001 } else 2002 return 0; 2003 } 2004 #endif /* MWL_HOST_PS_SUPPORT */ 2005 2006 static int 2007 mwl_desc_setup(struct mwl_softc *sc, const char *name, 2008 struct mwl_descdma *dd, 2009 int nbuf, size_t bufsize, int ndesc, size_t descsize) 2010 { 2011 struct ifnet *ifp = sc->sc_ifp; 2012 uint8_t *ds; 2013 int error; 2014 2015 DPRINTF(sc, MWL_DEBUG_RESET, 2016 "%s: %s DMA: %u bufs (%ju) %u desc/buf (%ju)\n", 2017 __func__, name, nbuf, (uintmax_t) bufsize, 2018 ndesc, (uintmax_t) descsize); 2019 2020 dd->dd_name = name; 2021 dd->dd_desc_len = nbuf * ndesc * descsize; 2022 2023 /* 2024 * Setup DMA descriptor area. 2025 */ 2026 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), /* parent */ 2027 PAGE_SIZE, 0, /* alignment, bounds */ 2028 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 2029 BUS_SPACE_MAXADDR, /* highaddr */ 2030 NULL, NULL, /* filter, filterarg */ 2031 dd->dd_desc_len, /* maxsize */ 2032 1, /* nsegments */ 2033 dd->dd_desc_len, /* maxsegsize */ 2034 BUS_DMA_ALLOCNOW, /* flags */ 2035 NULL, /* lockfunc */ 2036 NULL, /* lockarg */ 2037 &dd->dd_dmat); 2038 if (error != 0) { 2039 if_printf(ifp, "cannot allocate %s DMA tag\n", dd->dd_name); 2040 return error; 2041 } 2042 2043 /* allocate descriptors */ 2044 error = bus_dmamap_create(dd->dd_dmat, BUS_DMA_NOWAIT, &dd->dd_dmamap); 2045 if (error != 0) { 2046 if_printf(ifp, "unable to create dmamap for %s descriptors, " 2047 "error %u\n", dd->dd_name, error); 2048 goto fail0; 2049 } 2050 2051 error = bus_dmamem_alloc(dd->dd_dmat, (void**) &dd->dd_desc, 2052 BUS_DMA_NOWAIT | BUS_DMA_COHERENT, 2053 &dd->dd_dmamap); 2054 if (error != 0) { 2055 if_printf(ifp, "unable to alloc memory for %u %s descriptors, " 2056 "error %u\n", nbuf * ndesc, dd->dd_name, error); 2057 goto fail1; 2058 } 2059 2060 error = bus_dmamap_load(dd->dd_dmat, dd->dd_dmamap, 2061 dd->dd_desc, dd->dd_desc_len, 2062 mwl_load_cb, &dd->dd_desc_paddr, 2063 BUS_DMA_NOWAIT); 2064 if (error != 0) { 2065 if_printf(ifp, "unable to map %s descriptors, error %u\n", 2066 dd->dd_name, error); 2067 goto fail2; 2068 } 2069 2070 ds = dd->dd_desc; 2071 memset(ds, 0, dd->dd_desc_len); 2072 DPRINTF(sc, MWL_DEBUG_RESET, "%s: %s DMA map: %p (%lu) -> %p (%lu)\n", 2073 __func__, dd->dd_name, ds, (u_long) dd->dd_desc_len, 2074 (caddr_t) dd->dd_desc_paddr, /*XXX*/ (u_long) dd->dd_desc_len); 2075 2076 return 0; 2077 fail2: 2078 bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap); 2079 fail1: 2080 bus_dmamap_destroy(dd->dd_dmat, dd->dd_dmamap); 2081 fail0: 2082 bus_dma_tag_destroy(dd->dd_dmat); 2083 memset(dd, 0, sizeof(*dd)); 2084 return error; 2085 #undef DS2PHYS 2086 } 2087 2088 static void 2089 mwl_desc_cleanup(struct mwl_softc *sc, struct mwl_descdma *dd) 2090 { 2091 bus_dmamap_unload(dd->dd_dmat, dd->dd_dmamap); 2092 bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap); 2093 bus_dmamap_destroy(dd->dd_dmat, dd->dd_dmamap); 2094 bus_dma_tag_destroy(dd->dd_dmat); 2095 2096 memset(dd, 0, sizeof(*dd)); 2097 } 2098 2099 /* 2100 * Construct a tx q's free list. The order of entries on 2101 * the list must reflect the physical layout of tx descriptors 2102 * because the firmware pre-fetches descriptors. 2103 * 2104 * XXX might be better to use indices into the buffer array. 2105 */ 2106 static void 2107 mwl_txq_reset(struct mwl_softc *sc, struct mwl_txq *txq) 2108 { 2109 struct mwl_txbuf *bf; 2110 int i; 2111 2112 bf = txq->dma.dd_bufptr; 2113 STAILQ_INIT(&txq->free); 2114 for (i = 0; i < mwl_txbuf; i++, bf++) 2115 STAILQ_INSERT_TAIL(&txq->free, bf, bf_list); 2116 txq->nfree = i; 2117 } 2118 2119 #define DS2PHYS(_dd, _ds) \ 2120 ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) 2121 2122 static int 2123 mwl_txdma_setup(struct mwl_softc *sc, struct mwl_txq *txq) 2124 { 2125 struct ifnet *ifp = sc->sc_ifp; 2126 int error, bsize, i; 2127 struct mwl_txbuf *bf; 2128 struct mwl_txdesc *ds; 2129 2130 error = mwl_desc_setup(sc, "tx", &txq->dma, 2131 mwl_txbuf, sizeof(struct mwl_txbuf), 2132 MWL_TXDESC, sizeof(struct mwl_txdesc)); 2133 if (error != 0) 2134 return error; 2135 2136 /* allocate and setup tx buffers */ 2137 bsize = mwl_txbuf * sizeof(struct mwl_txbuf); 2138 bf = malloc(bsize, M_MWLDEV, M_NOWAIT | M_ZERO); 2139 if (bf == NULL) { 2140 if_printf(ifp, "malloc of %u tx buffers failed\n", 2141 mwl_txbuf); 2142 return ENOMEM; 2143 } 2144 txq->dma.dd_bufptr = bf; 2145 2146 ds = txq->dma.dd_desc; 2147 for (i = 0; i < mwl_txbuf; i++, bf++, ds += MWL_TXDESC) { 2148 bf->bf_desc = ds; 2149 bf->bf_daddr = DS2PHYS(&txq->dma, ds); 2150 error = bus_dmamap_create(sc->sc_dmat, BUS_DMA_NOWAIT, 2151 &bf->bf_dmamap); 2152 if (error != 0) { 2153 if_printf(ifp, "unable to create dmamap for tx " 2154 "buffer %u, error %u\n", i, error); 2155 return error; 2156 } 2157 } 2158 mwl_txq_reset(sc, txq); 2159 return 0; 2160 } 2161 2162 static void 2163 mwl_txdma_cleanup(struct mwl_softc *sc, struct mwl_txq *txq) 2164 { 2165 struct mwl_txbuf *bf; 2166 int i; 2167 2168 bf = txq->dma.dd_bufptr; 2169 for (i = 0; i < mwl_txbuf; i++, bf++) { 2170 KASSERT(bf->bf_m == NULL, ("mbuf on free list")); 2171 KASSERT(bf->bf_node == NULL, ("node on free list")); 2172 if (bf->bf_dmamap != NULL) 2173 bus_dmamap_destroy(sc->sc_dmat, bf->bf_dmamap); 2174 } 2175 STAILQ_INIT(&txq->free); 2176 txq->nfree = 0; 2177 if (txq->dma.dd_bufptr != NULL) { 2178 free(txq->dma.dd_bufptr, M_MWLDEV); 2179 txq->dma.dd_bufptr = NULL; 2180 } 2181 if (txq->dma.dd_desc_len != 0) 2182 mwl_desc_cleanup(sc, &txq->dma); 2183 } 2184 2185 static int 2186 mwl_rxdma_setup(struct mwl_softc *sc) 2187 { 2188 struct ifnet *ifp = sc->sc_ifp; 2189 int error, jumbosize, bsize, i; 2190 struct mwl_rxbuf *bf; 2191 struct mwl_jumbo *rbuf; 2192 struct mwl_rxdesc *ds; 2193 caddr_t data; 2194 2195 error = mwl_desc_setup(sc, "rx", &sc->sc_rxdma, 2196 mwl_rxdesc, sizeof(struct mwl_rxbuf), 2197 1, sizeof(struct mwl_rxdesc)); 2198 if (error != 0) 2199 return error; 2200 2201 /* 2202 * Receive is done to a private pool of jumbo buffers. 2203 * This allows us to attach to mbuf's and avoid re-mapping 2204 * memory on each rx we post. We allocate a large chunk 2205 * of memory and manage it in the driver. The mbuf free 2206 * callback method is used to reclaim frames after sending 2207 * them up the stack. By default we allocate 2x the number of 2208 * rx descriptors configured so we have some slop to hold 2209 * us while frames are processed. 2210 */ 2211 if (mwl_rxbuf < 2*mwl_rxdesc) { 2212 if_printf(ifp, 2213 "too few rx dma buffers (%d); increasing to %d\n", 2214 mwl_rxbuf, 2*mwl_rxdesc); 2215 mwl_rxbuf = 2*mwl_rxdesc; 2216 } 2217 jumbosize = roundup(MWL_AGGR_SIZE, PAGE_SIZE); 2218 sc->sc_rxmemsize = mwl_rxbuf*jumbosize; 2219 2220 error = bus_dma_tag_create(sc->sc_dmat, /* parent */ 2221 PAGE_SIZE, 0, /* alignment, bounds */ 2222 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 2223 BUS_SPACE_MAXADDR, /* highaddr */ 2224 NULL, NULL, /* filter, filterarg */ 2225 sc->sc_rxmemsize, /* maxsize */ 2226 1, /* nsegments */ 2227 sc->sc_rxmemsize, /* maxsegsize */ 2228 BUS_DMA_ALLOCNOW, /* flags */ 2229 NULL, /* lockfunc */ 2230 NULL, /* lockarg */ 2231 &sc->sc_rxdmat); 2232 error = bus_dmamap_create(sc->sc_rxdmat, BUS_DMA_NOWAIT, &sc->sc_rxmap); 2233 if (error != 0) { 2234 if_printf(ifp, "could not create rx DMA map\n"); 2235 return error; 2236 } 2237 2238 error = bus_dmamem_alloc(sc->sc_rxdmat, (void**) &sc->sc_rxmem, 2239 BUS_DMA_NOWAIT | BUS_DMA_COHERENT, 2240 &sc->sc_rxmap); 2241 if (error != 0) { 2242 if_printf(ifp, "could not alloc %ju bytes of rx DMA memory\n", 2243 (uintmax_t) sc->sc_rxmemsize); 2244 return error; 2245 } 2246 2247 error = bus_dmamap_load(sc->sc_rxdmat, sc->sc_rxmap, 2248 sc->sc_rxmem, sc->sc_rxmemsize, 2249 mwl_load_cb, &sc->sc_rxmem_paddr, 2250 BUS_DMA_NOWAIT); 2251 if (error != 0) { 2252 if_printf(ifp, "could not load rx DMA map\n"); 2253 return error; 2254 } 2255 2256 /* 2257 * Allocate rx buffers and set them up. 2258 */ 2259 bsize = mwl_rxdesc * sizeof(struct mwl_rxbuf); 2260 bf = malloc(bsize, M_MWLDEV, M_NOWAIT | M_ZERO); 2261 if (bf == NULL) { 2262 if_printf(ifp, "malloc of %u rx buffers failed\n", bsize); 2263 return error; 2264 } 2265 sc->sc_rxdma.dd_bufptr = bf; 2266 2267 STAILQ_INIT(&sc->sc_rxbuf); 2268 ds = sc->sc_rxdma.dd_desc; 2269 for (i = 0; i < mwl_rxdesc; i++, bf++, ds++) { 2270 bf->bf_desc = ds; 2271 bf->bf_daddr = DS2PHYS(&sc->sc_rxdma, ds); 2272 /* pre-assign dma buffer */ 2273 bf->bf_data = ((uint8_t *)sc->sc_rxmem) + (i*jumbosize); 2274 /* NB: tail is intentional to preserve descriptor order */ 2275 STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list); 2276 } 2277 2278 /* 2279 * Place remainder of dma memory buffers on the free list. 2280 */ 2281 SLIST_INIT(&sc->sc_rxfree); 2282 for (; i < mwl_rxbuf; i++) { 2283 data = ((uint8_t *)sc->sc_rxmem) + (i*jumbosize); 2284 rbuf = MWL_JUMBO_DATA2BUF(data); 2285 SLIST_INSERT_HEAD(&sc->sc_rxfree, rbuf, next); 2286 sc->sc_nrxfree++; 2287 } 2288 return 0; 2289 } 2290 #undef DS2PHYS 2291 2292 static void 2293 mwl_rxdma_cleanup(struct mwl_softc *sc) 2294 { 2295 if (sc->sc_rxmap != NULL) 2296 bus_dmamap_unload(sc->sc_rxdmat, sc->sc_rxmap); 2297 if (sc->sc_rxmem != NULL) { 2298 bus_dmamem_free(sc->sc_rxdmat, sc->sc_rxmem, sc->sc_rxmap); 2299 sc->sc_rxmem = NULL; 2300 } 2301 if (sc->sc_rxmap != NULL) { 2302 bus_dmamap_destroy(sc->sc_rxdmat, sc->sc_rxmap); 2303 sc->sc_rxmap = NULL; 2304 } 2305 if (sc->sc_rxdma.dd_bufptr != NULL) { 2306 free(sc->sc_rxdma.dd_bufptr, M_MWLDEV); 2307 sc->sc_rxdma.dd_bufptr = NULL; 2308 } 2309 if (sc->sc_rxdma.dd_desc_len != 0) 2310 mwl_desc_cleanup(sc, &sc->sc_rxdma); 2311 } 2312 2313 static int 2314 mwl_dma_setup(struct mwl_softc *sc) 2315 { 2316 int error, i; 2317 2318 error = mwl_rxdma_setup(sc); 2319 if (error != 0) { 2320 mwl_rxdma_cleanup(sc); 2321 return error; 2322 } 2323 2324 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) { 2325 error = mwl_txdma_setup(sc, &sc->sc_txq[i]); 2326 if (error != 0) { 2327 mwl_dma_cleanup(sc); 2328 return error; 2329 } 2330 } 2331 return 0; 2332 } 2333 2334 static void 2335 mwl_dma_cleanup(struct mwl_softc *sc) 2336 { 2337 int i; 2338 2339 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 2340 mwl_txdma_cleanup(sc, &sc->sc_txq[i]); 2341 mwl_rxdma_cleanup(sc); 2342 } 2343 2344 static struct ieee80211_node * 2345 mwl_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 2346 { 2347 struct ieee80211com *ic = vap->iv_ic; 2348 struct mwl_softc *sc = ic->ic_ifp->if_softc; 2349 const size_t space = sizeof(struct mwl_node); 2350 struct mwl_node *mn; 2351 2352 mn = malloc(space, M_80211_NODE, M_NOWAIT|M_ZERO); 2353 if (mn == NULL) { 2354 /* XXX stat+msg */ 2355 return NULL; 2356 } 2357 DPRINTF(sc, MWL_DEBUG_NODE, "%s: mn %p\n", __func__, mn); 2358 return &mn->mn_node; 2359 } 2360 2361 static void 2362 mwl_node_cleanup(struct ieee80211_node *ni) 2363 { 2364 struct ieee80211com *ic = ni->ni_ic; 2365 struct mwl_softc *sc = ic->ic_ifp->if_softc; 2366 struct mwl_node *mn = MWL_NODE(ni); 2367 2368 DPRINTF(sc, MWL_DEBUG_NODE, "%s: ni %p ic %p staid %d\n", 2369 __func__, ni, ni->ni_ic, mn->mn_staid); 2370 2371 if (mn->mn_staid != 0) { 2372 struct ieee80211vap *vap = ni->ni_vap; 2373 2374 if (mn->mn_hvap != NULL) { 2375 if (vap->iv_opmode == IEEE80211_M_STA) 2376 mwl_hal_delstation(mn->mn_hvap, vap->iv_myaddr); 2377 else 2378 mwl_hal_delstation(mn->mn_hvap, ni->ni_macaddr); 2379 } 2380 /* 2381 * NB: legacy WDS peer sta db entry is installed using 2382 * the associate ap's hvap; use it again to delete it. 2383 * XXX can vap be NULL? 2384 */ 2385 else if (vap->iv_opmode == IEEE80211_M_WDS && 2386 MWL_VAP(vap)->mv_ap_hvap != NULL) 2387 mwl_hal_delstation(MWL_VAP(vap)->mv_ap_hvap, 2388 ni->ni_macaddr); 2389 delstaid(sc, mn->mn_staid); 2390 mn->mn_staid = 0; 2391 } 2392 sc->sc_node_cleanup(ni); 2393 } 2394 2395 /* 2396 * Reclaim rx dma buffers from packets sitting on the ampdu 2397 * reorder queue for a station. We replace buffers with a 2398 * system cluster (if available). 2399 */ 2400 static void 2401 mwl_ampdu_rxdma_reclaim(struct ieee80211_rx_ampdu *rap) 2402 { 2403 #if 0 2404 int i, n, off; 2405 struct mbuf *m; 2406 void *cl; 2407 2408 n = rap->rxa_qframes; 2409 for (i = 0; i < rap->rxa_wnd && n > 0; i++) { 2410 m = rap->rxa_m[i]; 2411 if (m == NULL) 2412 continue; 2413 n--; 2414 /* our dma buffers have a well-known free routine */ 2415 if ((m->m_flags & M_EXT) == 0 || 2416 m->m_ext.ext_free != mwl_ext_free) 2417 continue; 2418 /* 2419 * Try to allocate a cluster and move the data. 2420 */ 2421 off = m->m_data - m->m_ext.ext_buf; 2422 if (off + m->m_pkthdr.len > MCLBYTES) { 2423 /* XXX no AMSDU for now */ 2424 continue; 2425 } 2426 cl = pool_cache_get_paddr(&mclpool_cache, 0, 2427 &m->m_ext.ext_paddr); 2428 if (cl != NULL) { 2429 /* 2430 * Copy the existing data to the cluster, remove 2431 * the rx dma buffer, and attach the cluster in 2432 * its place. Note we preserve the offset to the 2433 * data so frames being bridged can still prepend 2434 * their headers without adding another mbuf. 2435 */ 2436 memcpy((caddr_t) cl + off, m->m_data, m->m_pkthdr.len); 2437 MEXTREMOVE(m); 2438 MEXTADD(m, cl, MCLBYTES, 0, NULL, &mclpool_cache); 2439 /* setup mbuf like _MCLGET does */ 2440 m->m_flags |= M_CLUSTER | M_EXT_RW; 2441 _MOWNERREF(m, M_EXT | M_CLUSTER); 2442 /* NB: m_data is clobbered by MEXTADDR, adjust */ 2443 m->m_data += off; 2444 } 2445 } 2446 #endif 2447 } 2448 2449 /* 2450 * Callback to reclaim resources. We first let the 2451 * net80211 layer do it's thing, then if we are still 2452 * blocked by a lack of rx dma buffers we walk the ampdu 2453 * reorder q's to reclaim buffers by copying to a system 2454 * cluster. 2455 */ 2456 static void 2457 mwl_node_drain(struct ieee80211_node *ni) 2458 { 2459 struct ieee80211com *ic = ni->ni_ic; 2460 struct mwl_softc *sc = ic->ic_ifp->if_softc; 2461 struct mwl_node *mn = MWL_NODE(ni); 2462 2463 DPRINTF(sc, MWL_DEBUG_NODE, "%s: ni %p vap %p staid %d\n", 2464 __func__, ni, ni->ni_vap, mn->mn_staid); 2465 2466 /* NB: call up first to age out ampdu q's */ 2467 sc->sc_node_drain(ni); 2468 2469 /* XXX better to not check low water mark? */ 2470 if (sc->sc_rxblocked && mn->mn_staid != 0 && 2471 (ni->ni_flags & IEEE80211_NODE_HT)) { 2472 uint8_t tid; 2473 /* 2474 * Walk the reorder q and reclaim rx dma buffers by copying 2475 * the packet contents into clusters. 2476 */ 2477 for (tid = 0; tid < WME_NUM_TID; tid++) { 2478 struct ieee80211_rx_ampdu *rap; 2479 2480 rap = &ni->ni_rx_ampdu[tid]; 2481 if ((rap->rxa_flags & IEEE80211_AGGR_XCHGPEND) == 0) 2482 continue; 2483 if (rap->rxa_qframes) 2484 mwl_ampdu_rxdma_reclaim(rap); 2485 } 2486 } 2487 } 2488 2489 static void 2490 mwl_node_getsignal(const struct ieee80211_node *ni, int8_t *rssi, int8_t *noise) 2491 { 2492 *rssi = ni->ni_ic->ic_node_getrssi(ni); 2493 #ifdef MWL_ANT_INFO_SUPPORT 2494 #if 0 2495 /* XXX need to smooth data */ 2496 *noise = -MWL_NODE_CONST(ni)->mn_ai.nf; 2497 #else 2498 *noise = -95; /* XXX */ 2499 #endif 2500 #else 2501 *noise = -95; /* XXX */ 2502 #endif 2503 } 2504 2505 /* 2506 * Convert Hardware per-antenna rssi info to common format: 2507 * Let a1, a2, a3 represent the amplitudes per chain 2508 * Let amax represent max[a1, a2, a3] 2509 * Rssi1_dBm = RSSI_dBm + 20*log10(a1/amax) 2510 * Rssi1_dBm = RSSI_dBm + 20*log10(a1) - 20*log10(amax) 2511 * We store a table that is 4*20*log10(idx) - the extra 4 is to store or 2512 * maintain some extra precision. 2513 * 2514 * Values are stored in .5 db format capped at 127. 2515 */ 2516 static void 2517 mwl_node_getmimoinfo(const struct ieee80211_node *ni, 2518 struct ieee80211_mimo_info *mi) 2519 { 2520 #define CVT(_dst, _src) do { \ 2521 (_dst) = rssi + ((logdbtbl[_src] - logdbtbl[rssi_max]) >> 2); \ 2522 (_dst) = (_dst) > 64 ? 127 : ((_dst) << 1); \ 2523 } while (0) 2524 static const int8_t logdbtbl[32] = { 2525 0, 0, 24, 38, 48, 56, 62, 68, 2526 72, 76, 80, 83, 86, 89, 92, 94, 2527 96, 98, 100, 102, 104, 106, 107, 109, 2528 110, 112, 113, 115, 116, 117, 118, 119 2529 }; 2530 const struct mwl_node *mn = MWL_NODE_CONST(ni); 2531 uint8_t rssi = mn->mn_ai.rsvd1/2; /* XXX */ 2532 uint32_t rssi_max; 2533 2534 rssi_max = mn->mn_ai.rssi_a; 2535 if (mn->mn_ai.rssi_b > rssi_max) 2536 rssi_max = mn->mn_ai.rssi_b; 2537 if (mn->mn_ai.rssi_c > rssi_max) 2538 rssi_max = mn->mn_ai.rssi_c; 2539 2540 CVT(mi->rssi[0], mn->mn_ai.rssi_a); 2541 CVT(mi->rssi[1], mn->mn_ai.rssi_b); 2542 CVT(mi->rssi[2], mn->mn_ai.rssi_c); 2543 2544 mi->noise[0] = mn->mn_ai.nf_a; 2545 mi->noise[1] = mn->mn_ai.nf_b; 2546 mi->noise[2] = mn->mn_ai.nf_c; 2547 #undef CVT 2548 } 2549 2550 static __inline void * 2551 mwl_getrxdma(struct mwl_softc *sc) 2552 { 2553 struct mwl_jumbo *buf; 2554 void *data; 2555 2556 /* 2557 * Allocate from jumbo pool. 2558 */ 2559 MWL_RXFREE_LOCK(sc); 2560 buf = SLIST_FIRST(&sc->sc_rxfree); 2561 if (buf == NULL) { 2562 DPRINTF(sc, MWL_DEBUG_ANY, 2563 "%s: out of rx dma buffers\n", __func__); 2564 sc->sc_stats.mst_rx_nodmabuf++; 2565 data = NULL; 2566 } else { 2567 SLIST_REMOVE_HEAD(&sc->sc_rxfree, next); 2568 sc->sc_nrxfree--; 2569 data = MWL_JUMBO_BUF2DATA(buf); 2570 } 2571 MWL_RXFREE_UNLOCK(sc); 2572 return data; 2573 } 2574 2575 static __inline void 2576 mwl_putrxdma(struct mwl_softc *sc, void *data) 2577 { 2578 struct mwl_jumbo *buf; 2579 2580 /* XXX bounds check data */ 2581 MWL_RXFREE_LOCK(sc); 2582 buf = MWL_JUMBO_DATA2BUF(data); 2583 SLIST_INSERT_HEAD(&sc->sc_rxfree, buf, next); 2584 sc->sc_nrxfree++; 2585 MWL_RXFREE_UNLOCK(sc); 2586 } 2587 2588 static int 2589 mwl_rxbuf_init(struct mwl_softc *sc, struct mwl_rxbuf *bf) 2590 { 2591 struct mwl_rxdesc *ds; 2592 2593 ds = bf->bf_desc; 2594 if (bf->bf_data == NULL) { 2595 bf->bf_data = mwl_getrxdma(sc); 2596 if (bf->bf_data == NULL) { 2597 /* mark descriptor to be skipped */ 2598 ds->RxControl = EAGLE_RXD_CTRL_OS_OWN; 2599 /* NB: don't need PREREAD */ 2600 MWL_RXDESC_SYNC(sc, ds, BUS_DMASYNC_PREWRITE); 2601 sc->sc_stats.mst_rxbuf_failed++; 2602 return ENOMEM; 2603 } 2604 } 2605 /* 2606 * NB: DMA buffer contents is known to be unmodified 2607 * so there's no need to flush the data cache. 2608 */ 2609 2610 /* 2611 * Setup descriptor. 2612 */ 2613 ds->QosCtrl = 0; 2614 ds->RSSI = 0; 2615 ds->Status = EAGLE_RXD_STATUS_IDLE; 2616 ds->Channel = 0; 2617 ds->PktLen = htole16(MWL_AGGR_SIZE); 2618 ds->SQ2 = 0; 2619 ds->pPhysBuffData = htole32(MWL_JUMBO_DMA_ADDR(sc, bf->bf_data)); 2620 /* NB: don't touch pPhysNext, set once */ 2621 ds->RxControl = EAGLE_RXD_CTRL_DRIVER_OWN; 2622 MWL_RXDESC_SYNC(sc, ds, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2623 2624 return 0; 2625 } 2626 2627 static int 2628 mwl_ext_free(struct mbuf *m, void *data, void *arg) 2629 { 2630 struct mwl_softc *sc = arg; 2631 2632 /* XXX bounds check data */ 2633 mwl_putrxdma(sc, data); 2634 /* 2635 * If we were previously blocked by a lack of rx dma buffers 2636 * check if we now have enough to restart rx interrupt handling. 2637 * NB: we know we are called at splvm which is above splnet. 2638 */ 2639 if (sc->sc_rxblocked && sc->sc_nrxfree > mwl_rxdmalow) { 2640 sc->sc_rxblocked = 0; 2641 mwl_hal_intrset(sc->sc_mh, sc->sc_imask); 2642 } 2643 return (EXT_FREE_OK); 2644 } 2645 2646 struct mwl_frame_bar { 2647 u_int8_t i_fc[2]; 2648 u_int8_t i_dur[2]; 2649 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 2650 u_int8_t i_ta[IEEE80211_ADDR_LEN]; 2651 /* ctl, seq, FCS */ 2652 } __packed; 2653 2654 /* 2655 * Like ieee80211_anyhdrsize, but handles BAR frames 2656 * specially so the logic below to piece the 802.11 2657 * header together works. 2658 */ 2659 static __inline int 2660 mwl_anyhdrsize(const void *data) 2661 { 2662 const struct ieee80211_frame *wh = data; 2663 2664 if ((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL) { 2665 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) { 2666 case IEEE80211_FC0_SUBTYPE_CTS: 2667 case IEEE80211_FC0_SUBTYPE_ACK: 2668 return sizeof(struct ieee80211_frame_ack); 2669 case IEEE80211_FC0_SUBTYPE_BAR: 2670 return sizeof(struct mwl_frame_bar); 2671 } 2672 return sizeof(struct ieee80211_frame_min); 2673 } else 2674 return ieee80211_hdrsize(data); 2675 } 2676 2677 static void 2678 mwl_handlemicerror(struct ieee80211com *ic, const uint8_t *data) 2679 { 2680 const struct ieee80211_frame *wh; 2681 struct ieee80211_node *ni; 2682 2683 wh = (const struct ieee80211_frame *)(data + sizeof(uint16_t)); 2684 ni = ieee80211_find_rxnode(ic, (const struct ieee80211_frame_min *) wh); 2685 if (ni != NULL) { 2686 ieee80211_notify_michael_failure(ni->ni_vap, wh, 0); 2687 ieee80211_free_node(ni); 2688 } 2689 } 2690 2691 /* 2692 * Convert hardware signal strength to rssi. The value 2693 * provided by the device has the noise floor added in; 2694 * we need to compensate for this but we don't have that 2695 * so we use a fixed value. 2696 * 2697 * The offset of 8 is good for both 2.4 and 5GHz. The LNA 2698 * offset is already set as part of the initial gain. This 2699 * will give at least +/- 3dB for 2.4GHz and +/- 5dB for 5GHz. 2700 */ 2701 static __inline int 2702 cvtrssi(uint8_t ssi) 2703 { 2704 int rssi = (int) ssi + 8; 2705 /* XXX hack guess until we have a real noise floor */ 2706 rssi = 2*(87 - rssi); /* NB: .5 dBm units */ 2707 return (rssi < 0 ? 0 : rssi > 127 ? 127 : rssi); 2708 } 2709 2710 static void 2711 mwl_rx_proc(void *arg, int npending) 2712 { 2713 #define IEEE80211_DIR_DSTODS(wh) \ 2714 ((((const struct ieee80211_frame *)wh)->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS) 2715 struct mwl_softc *sc = arg; 2716 struct ifnet *ifp = sc->sc_ifp; 2717 struct ieee80211com *ic = ifp->if_l2com; 2718 struct mwl_rxbuf *bf; 2719 struct mwl_rxdesc *ds; 2720 struct mbuf *m; 2721 struct ieee80211_qosframe *wh; 2722 struct ieee80211_qosframe_addr4 *wh4; 2723 struct ieee80211_node *ni; 2724 struct mwl_node *mn; 2725 int off, len, hdrlen, pktlen, rssi, ntodo; 2726 uint8_t *data, status; 2727 void *newdata; 2728 int16_t nf; 2729 2730 DPRINTF(sc, MWL_DEBUG_RX_PROC, "%s: pending %u rdptr 0x%x wrptr 0x%x\n", 2731 __func__, npending, RD4(sc, sc->sc_hwspecs.rxDescRead), 2732 RD4(sc, sc->sc_hwspecs.rxDescWrite)); 2733 nf = -96; /* XXX */ 2734 bf = sc->sc_rxnext; 2735 for (ntodo = mwl_rxquota; ntodo > 0; ntodo--) { 2736 if (bf == NULL) 2737 bf = STAILQ_FIRST(&sc->sc_rxbuf); 2738 ds = bf->bf_desc; 2739 data = bf->bf_data; 2740 if (data == NULL) { 2741 /* 2742 * If data allocation failed previously there 2743 * will be no buffer; try again to re-populate it. 2744 * Note the firmware will not advance to the next 2745 * descriptor with a dma buffer so we must mimic 2746 * this or we'll get out of sync. 2747 */ 2748 DPRINTF(sc, MWL_DEBUG_ANY, 2749 "%s: rx buf w/o dma memory\n", __func__); 2750 (void) mwl_rxbuf_init(sc, bf); 2751 sc->sc_stats.mst_rx_dmabufmissing++; 2752 break; 2753 } 2754 MWL_RXDESC_SYNC(sc, ds, 2755 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2756 if (ds->RxControl != EAGLE_RXD_CTRL_DMA_OWN) 2757 break; 2758 #ifdef MWL_DEBUG 2759 if (sc->sc_debug & MWL_DEBUG_RECV_DESC) 2760 mwl_printrxbuf(bf, 0); 2761 #endif 2762 status = ds->Status; 2763 if (status & EAGLE_RXD_STATUS_DECRYPT_ERR_MASK) { 2764 ifp->if_ierrors++; 2765 sc->sc_stats.mst_rx_crypto++; 2766 /* 2767 * NB: Check EAGLE_RXD_STATUS_GENERAL_DECRYPT_ERR 2768 * for backwards compatibility. 2769 */ 2770 if (status != EAGLE_RXD_STATUS_GENERAL_DECRYPT_ERR && 2771 (status & EAGLE_RXD_STATUS_TKIP_MIC_DECRYPT_ERR)) { 2772 /* 2773 * MIC error, notify upper layers. 2774 */ 2775 bus_dmamap_sync(sc->sc_rxdmat, sc->sc_rxmap, 2776 BUS_DMASYNC_POSTREAD); 2777 mwl_handlemicerror(ic, data); 2778 sc->sc_stats.mst_rx_tkipmic++; 2779 } 2780 /* XXX too painful to tap packets */ 2781 goto rx_next; 2782 } 2783 /* 2784 * Sync the data buffer. 2785 */ 2786 len = le16toh(ds->PktLen); 2787 bus_dmamap_sync(sc->sc_rxdmat, sc->sc_rxmap, BUS_DMASYNC_POSTREAD); 2788 /* 2789 * The 802.11 header is provided all or in part at the front; 2790 * use it to calculate the true size of the header that we'll 2791 * construct below. We use this to figure out where to copy 2792 * payload prior to constructing the header. 2793 */ 2794 hdrlen = mwl_anyhdrsize(data + sizeof(uint16_t)); 2795 off = sizeof(uint16_t) + sizeof(struct ieee80211_frame_addr4); 2796 2797 /* calculate rssi early so we can re-use for each aggregate */ 2798 rssi = cvtrssi(ds->RSSI); 2799 2800 pktlen = hdrlen + (len - off); 2801 /* 2802 * NB: we know our frame is at least as large as 2803 * IEEE80211_MIN_LEN because there is a 4-address 2804 * frame at the front. Hence there's no need to 2805 * vet the packet length. If the frame in fact 2806 * is too small it should be discarded at the 2807 * net80211 layer. 2808 */ 2809 2810 /* 2811 * Attach dma buffer to an mbuf. We tried 2812 * doing this based on the packet size (i.e. 2813 * copying small packets) but it turns out to 2814 * be a net loss. The tradeoff might be system 2815 * dependent (cache architecture is important). 2816 */ 2817 MGETHDR(m, M_NOWAIT, MT_DATA); 2818 if (m == NULL) { 2819 DPRINTF(sc, MWL_DEBUG_ANY, 2820 "%s: no rx mbuf\n", __func__); 2821 sc->sc_stats.mst_rx_nombuf++; 2822 goto rx_next; 2823 } 2824 /* 2825 * Acquire the replacement dma buffer before 2826 * processing the frame. If we're out of dma 2827 * buffers we disable rx interrupts and wait 2828 * for the free pool to reach mlw_rxdmalow buffers 2829 * before starting to do work again. If the firmware 2830 * runs out of descriptors then it will toss frames 2831 * which is better than our doing it as that can 2832 * starve our processing. It is also important that 2833 * we always process rx'd frames in case they are 2834 * A-MPDU as otherwise the host's view of the BA 2835 * window may get out of sync with the firmware. 2836 */ 2837 newdata = mwl_getrxdma(sc); 2838 if (newdata == NULL) { 2839 /* NB: stat+msg in mwl_getrxdma */ 2840 m_free(m); 2841 /* disable RX interrupt and mark state */ 2842 mwl_hal_intrset(sc->sc_mh, 2843 sc->sc_imask &~ MACREG_A2HRIC_BIT_RX_RDY); 2844 sc->sc_rxblocked = 1; 2845 ieee80211_drain(ic); 2846 /* XXX check rxblocked and immediately start again? */ 2847 goto rx_stop; 2848 } 2849 bf->bf_data = newdata; 2850 /* 2851 * Attach the dma buffer to the mbuf; 2852 * mwl_rxbuf_init will re-setup the rx 2853 * descriptor using the replacement dma 2854 * buffer we just installed above. 2855 */ 2856 MEXTADD(m, data, MWL_AGGR_SIZE, mwl_ext_free, 2857 data, sc, 0, EXT_NET_DRV); 2858 m->m_data += off - hdrlen; 2859 m->m_pkthdr.len = m->m_len = pktlen; 2860 m->m_pkthdr.rcvif = ifp; 2861 /* NB: dma buffer assumed read-only */ 2862 2863 /* 2864 * Piece 802.11 header together. 2865 */ 2866 wh = mtod(m, struct ieee80211_qosframe *); 2867 /* NB: don't need to do this sometimes but ... */ 2868 /* XXX special case so we can memcpy after m_devget? */ 2869 ovbcopy(data + sizeof(uint16_t), wh, hdrlen); 2870 if (IEEE80211_QOS_HAS_SEQ(wh)) { 2871 if (IEEE80211_DIR_DSTODS(wh)) { 2872 wh4 = mtod(m, 2873 struct ieee80211_qosframe_addr4*); 2874 *(uint16_t *)wh4->i_qos = ds->QosCtrl; 2875 } else { 2876 *(uint16_t *)wh->i_qos = ds->QosCtrl; 2877 } 2878 } 2879 /* 2880 * The f/w strips WEP header but doesn't clear 2881 * the WEP bit; mark the packet with M_WEP so 2882 * net80211 will treat the data as decrypted. 2883 * While here also clear the PWR_MGT bit since 2884 * power save is handled by the firmware and 2885 * passing this up will potentially cause the 2886 * upper layer to put a station in power save 2887 * (except when configured with MWL_HOST_PS_SUPPORT). 2888 */ 2889 if (wh->i_fc[1] & IEEE80211_FC1_WEP) 2890 m->m_flags |= M_WEP; 2891 #ifdef MWL_HOST_PS_SUPPORT 2892 wh->i_fc[1] &= ~IEEE80211_FC1_WEP; 2893 #else 2894 wh->i_fc[1] &= ~(IEEE80211_FC1_WEP | IEEE80211_FC1_PWR_MGT); 2895 #endif 2896 2897 if (ieee80211_radiotap_active(ic)) { 2898 struct mwl_rx_radiotap_header *tap = &sc->sc_rx_th; 2899 2900 tap->wr_flags = 0; 2901 tap->wr_rate = ds->Rate; 2902 tap->wr_antsignal = rssi + nf; 2903 tap->wr_antnoise = nf; 2904 } 2905 if (IFF_DUMPPKTS_RECV(sc, wh)) { 2906 ieee80211_dump_pkt(ic, mtod(m, caddr_t), 2907 len, ds->Rate, rssi); 2908 } 2909 ifp->if_ipackets++; 2910 2911 /* dispatch */ 2912 ni = ieee80211_find_rxnode(ic, 2913 (const struct ieee80211_frame_min *) wh); 2914 if (ni != NULL) { 2915 mn = MWL_NODE(ni); 2916 #ifdef MWL_ANT_INFO_SUPPORT 2917 mn->mn_ai.rssi_a = ds->ai.rssi_a; 2918 mn->mn_ai.rssi_b = ds->ai.rssi_b; 2919 mn->mn_ai.rssi_c = ds->ai.rssi_c; 2920 mn->mn_ai.rsvd1 = rssi; 2921 #endif 2922 /* tag AMPDU aggregates for reorder processing */ 2923 if (ni->ni_flags & IEEE80211_NODE_HT) 2924 m->m_flags |= M_AMPDU; 2925 (void) ieee80211_input(ni, m, rssi, nf); 2926 ieee80211_free_node(ni); 2927 } else 2928 (void) ieee80211_input_all(ic, m, rssi, nf); 2929 rx_next: 2930 /* NB: ignore ENOMEM so we process more descriptors */ 2931 (void) mwl_rxbuf_init(sc, bf); 2932 bf = STAILQ_NEXT(bf, bf_list); 2933 } 2934 rx_stop: 2935 sc->sc_rxnext = bf; 2936 2937 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 2938 !IFQ_IS_EMPTY(&ifp->if_snd)) { 2939 /* NB: kick fw; the tx thread may have been preempted */ 2940 mwl_hal_txstart(sc->sc_mh, 0); 2941 mwl_start(ifp); 2942 } 2943 #undef IEEE80211_DIR_DSTODS 2944 } 2945 2946 static void 2947 mwl_txq_init(struct mwl_softc *sc, struct mwl_txq *txq, int qnum) 2948 { 2949 struct mwl_txbuf *bf, *bn; 2950 struct mwl_txdesc *ds; 2951 2952 MWL_TXQ_LOCK_INIT(sc, txq); 2953 txq->qnum = qnum; 2954 txq->txpri = 0; /* XXX */ 2955 #if 0 2956 /* NB: q setup by mwl_txdma_setup XXX */ 2957 STAILQ_INIT(&txq->free); 2958 #endif 2959 STAILQ_FOREACH(bf, &txq->free, bf_list) { 2960 bf->bf_txq = txq; 2961 2962 ds = bf->bf_desc; 2963 bn = STAILQ_NEXT(bf, bf_list); 2964 if (bn == NULL) 2965 bn = STAILQ_FIRST(&txq->free); 2966 ds->pPhysNext = htole32(bn->bf_daddr); 2967 } 2968 STAILQ_INIT(&txq->active); 2969 } 2970 2971 /* 2972 * Setup a hardware data transmit queue for the specified 2973 * access control. We record the mapping from ac's 2974 * to h/w queues for use by mwl_tx_start. 2975 */ 2976 static int 2977 mwl_tx_setup(struct mwl_softc *sc, int ac, int mvtype) 2978 { 2979 #define N(a) (sizeof(a)/sizeof(a[0])) 2980 struct mwl_txq *txq; 2981 2982 if (ac >= N(sc->sc_ac2q)) { 2983 device_printf(sc->sc_dev, "AC %u out of range, max %zu!\n", 2984 ac, N(sc->sc_ac2q)); 2985 return 0; 2986 } 2987 if (mvtype >= MWL_NUM_TX_QUEUES) { 2988 device_printf(sc->sc_dev, "mvtype %u out of range, max %u!\n", 2989 mvtype, MWL_NUM_TX_QUEUES); 2990 return 0; 2991 } 2992 txq = &sc->sc_txq[mvtype]; 2993 mwl_txq_init(sc, txq, mvtype); 2994 sc->sc_ac2q[ac] = txq; 2995 return 1; 2996 #undef N 2997 } 2998 2999 /* 3000 * Update WME parameters for a transmit queue. 3001 */ 3002 static int 3003 mwl_txq_update(struct mwl_softc *sc, int ac) 3004 { 3005 #define MWL_EXPONENT_TO_VALUE(v) ((1<<v)-1) 3006 struct ifnet *ifp = sc->sc_ifp; 3007 struct ieee80211com *ic = ifp->if_l2com; 3008 struct mwl_txq *txq = sc->sc_ac2q[ac]; 3009 struct wmeParams *wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 3010 struct mwl_hal *mh = sc->sc_mh; 3011 int aifs, cwmin, cwmax, txoplim; 3012 3013 aifs = wmep->wmep_aifsn; 3014 /* XXX in sta mode need to pass log values for cwmin/max */ 3015 cwmin = MWL_EXPONENT_TO_VALUE(wmep->wmep_logcwmin); 3016 cwmax = MWL_EXPONENT_TO_VALUE(wmep->wmep_logcwmax); 3017 txoplim = wmep->wmep_txopLimit; /* NB: units of 32us */ 3018 3019 if (mwl_hal_setedcaparams(mh, txq->qnum, cwmin, cwmax, aifs, txoplim)) { 3020 device_printf(sc->sc_dev, "unable to update hardware queue " 3021 "parameters for %s traffic!\n", 3022 ieee80211_wme_acnames[ac]); 3023 return 0; 3024 } 3025 return 1; 3026 #undef MWL_EXPONENT_TO_VALUE 3027 } 3028 3029 /* 3030 * Callback from the 802.11 layer to update WME parameters. 3031 */ 3032 static int 3033 mwl_wme_update(struct ieee80211com *ic) 3034 { 3035 struct mwl_softc *sc = ic->ic_ifp->if_softc; 3036 3037 return !mwl_txq_update(sc, WME_AC_BE) || 3038 !mwl_txq_update(sc, WME_AC_BK) || 3039 !mwl_txq_update(sc, WME_AC_VI) || 3040 !mwl_txq_update(sc, WME_AC_VO) ? EIO : 0; 3041 } 3042 3043 /* 3044 * Reclaim resources for a setup queue. 3045 */ 3046 static void 3047 mwl_tx_cleanupq(struct mwl_softc *sc, struct mwl_txq *txq) 3048 { 3049 /* XXX hal work? */ 3050 MWL_TXQ_LOCK_DESTROY(txq); 3051 } 3052 3053 /* 3054 * Reclaim all tx queue resources. 3055 */ 3056 static void 3057 mwl_tx_cleanup(struct mwl_softc *sc) 3058 { 3059 int i; 3060 3061 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 3062 mwl_tx_cleanupq(sc, &sc->sc_txq[i]); 3063 } 3064 3065 static int 3066 mwl_tx_dmasetup(struct mwl_softc *sc, struct mwl_txbuf *bf, struct mbuf *m0) 3067 { 3068 struct mbuf *m; 3069 int error; 3070 3071 /* 3072 * Load the DMA map so any coalescing is done. This 3073 * also calculates the number of descriptors we need. 3074 */ 3075 error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m0, 3076 bf->bf_segs, &bf->bf_nseg, 3077 BUS_DMA_NOWAIT); 3078 if (error == EFBIG) { 3079 /* XXX packet requires too many descriptors */ 3080 bf->bf_nseg = MWL_TXDESC+1; 3081 } else if (error != 0) { 3082 sc->sc_stats.mst_tx_busdma++; 3083 m_freem(m0); 3084 return error; 3085 } 3086 /* 3087 * Discard null packets and check for packets that 3088 * require too many TX descriptors. We try to convert 3089 * the latter to a cluster. 3090 */ 3091 if (error == EFBIG) { /* too many desc's, linearize */ 3092 sc->sc_stats.mst_tx_linear++; 3093 #if MWL_TXDESC > 1 3094 m = m_collapse(m0, M_NOWAIT, MWL_TXDESC); 3095 #else 3096 m = m_defrag(m0, M_NOWAIT); 3097 #endif 3098 if (m == NULL) { 3099 m_freem(m0); 3100 sc->sc_stats.mst_tx_nombuf++; 3101 return ENOMEM; 3102 } 3103 m0 = m; 3104 error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m0, 3105 bf->bf_segs, &bf->bf_nseg, 3106 BUS_DMA_NOWAIT); 3107 if (error != 0) { 3108 sc->sc_stats.mst_tx_busdma++; 3109 m_freem(m0); 3110 return error; 3111 } 3112 KASSERT(bf->bf_nseg <= MWL_TXDESC, 3113 ("too many segments after defrag; nseg %u", bf->bf_nseg)); 3114 } else if (bf->bf_nseg == 0) { /* null packet, discard */ 3115 sc->sc_stats.mst_tx_nodata++; 3116 m_freem(m0); 3117 return EIO; 3118 } 3119 DPRINTF(sc, MWL_DEBUG_XMIT, "%s: m %p len %u\n", 3120 __func__, m0, m0->m_pkthdr.len); 3121 bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE); 3122 bf->bf_m = m0; 3123 3124 return 0; 3125 } 3126 3127 static __inline int 3128 mwl_cvtlegacyrate(int rate) 3129 { 3130 switch (rate) { 3131 case 2: return 0; 3132 case 4: return 1; 3133 case 11: return 2; 3134 case 22: return 3; 3135 case 44: return 4; 3136 case 12: return 5; 3137 case 18: return 6; 3138 case 24: return 7; 3139 case 36: return 8; 3140 case 48: return 9; 3141 case 72: return 10; 3142 case 96: return 11; 3143 case 108:return 12; 3144 } 3145 return 0; 3146 } 3147 3148 /* 3149 * Calculate fixed tx rate information per client state; 3150 * this value is suitable for writing to the Format field 3151 * of a tx descriptor. 3152 */ 3153 static uint16_t 3154 mwl_calcformat(uint8_t rate, const struct ieee80211_node *ni) 3155 { 3156 uint16_t fmt; 3157 3158 fmt = SM(3, EAGLE_TXD_ANTENNA) 3159 | (IEEE80211_IS_CHAN_HT40D(ni->ni_chan) ? 3160 EAGLE_TXD_EXTCHAN_LO : EAGLE_TXD_EXTCHAN_HI); 3161 if (rate & IEEE80211_RATE_MCS) { /* HT MCS */ 3162 fmt |= EAGLE_TXD_FORMAT_HT 3163 /* NB: 0x80 implicitly stripped from ucastrate */ 3164 | SM(rate, EAGLE_TXD_RATE); 3165 /* XXX short/long GI may be wrong; re-check */ 3166 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 3167 fmt |= EAGLE_TXD_CHW_40 3168 | (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40 ? 3169 EAGLE_TXD_GI_SHORT : EAGLE_TXD_GI_LONG); 3170 } else { 3171 fmt |= EAGLE_TXD_CHW_20 3172 | (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20 ? 3173 EAGLE_TXD_GI_SHORT : EAGLE_TXD_GI_LONG); 3174 } 3175 } else { /* legacy rate */ 3176 fmt |= EAGLE_TXD_FORMAT_LEGACY 3177 | SM(mwl_cvtlegacyrate(rate), EAGLE_TXD_RATE) 3178 | EAGLE_TXD_CHW_20 3179 /* XXX iv_flags & IEEE80211_F_SHPREAMBLE? */ 3180 | (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_PREAMBLE ? 3181 EAGLE_TXD_PREAMBLE_SHORT : EAGLE_TXD_PREAMBLE_LONG); 3182 } 3183 return fmt; 3184 } 3185 3186 static int 3187 mwl_tx_start(struct mwl_softc *sc, struct ieee80211_node *ni, struct mwl_txbuf *bf, 3188 struct mbuf *m0) 3189 { 3190 #define IEEE80211_DIR_DSTODS(wh) \ 3191 ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS) 3192 struct ifnet *ifp = sc->sc_ifp; 3193 struct ieee80211com *ic = ifp->if_l2com; 3194 struct ieee80211vap *vap = ni->ni_vap; 3195 int error, iswep, ismcast; 3196 int hdrlen, copyhdrlen, pktlen; 3197 struct mwl_txdesc *ds; 3198 struct mwl_txq *txq; 3199 struct ieee80211_frame *wh; 3200 struct mwltxrec *tr; 3201 struct mwl_node *mn; 3202 uint16_t qos; 3203 #if MWL_TXDESC > 1 3204 int i; 3205 #endif 3206 3207 wh = mtod(m0, struct ieee80211_frame *); 3208 iswep = wh->i_fc[1] & IEEE80211_FC1_WEP; 3209 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 3210 hdrlen = ieee80211_anyhdrsize(wh); 3211 copyhdrlen = hdrlen; 3212 pktlen = m0->m_pkthdr.len; 3213 if (IEEE80211_QOS_HAS_SEQ(wh)) { 3214 if (IEEE80211_DIR_DSTODS(wh)) { 3215 qos = *(uint16_t *) 3216 (((struct ieee80211_qosframe_addr4 *) wh)->i_qos); 3217 copyhdrlen -= sizeof(qos); 3218 } else 3219 qos = *(uint16_t *) 3220 (((struct ieee80211_qosframe *) wh)->i_qos); 3221 } else 3222 qos = 0; 3223 3224 if (iswep) { 3225 const struct ieee80211_cipher *cip; 3226 struct ieee80211_key *k; 3227 3228 /* 3229 * Construct the 802.11 header+trailer for an encrypted 3230 * frame. The only reason this can fail is because of an 3231 * unknown or unsupported cipher/key type. 3232 * 3233 * NB: we do this even though the firmware will ignore 3234 * what we've done for WEP and TKIP as we need the 3235 * ExtIV filled in for CCMP and this also adjusts 3236 * the headers which simplifies our work below. 3237 */ 3238 k = ieee80211_crypto_encap(ni, m0); 3239 if (k == NULL) { 3240 /* 3241 * This can happen when the key is yanked after the 3242 * frame was queued. Just discard the frame; the 3243 * 802.11 layer counts failures and provides 3244 * debugging/diagnostics. 3245 */ 3246 m_freem(m0); 3247 return EIO; 3248 } 3249 /* 3250 * Adjust the packet length for the crypto additions 3251 * done during encap and any other bits that the f/w 3252 * will add later on. 3253 */ 3254 cip = k->wk_cipher; 3255 pktlen += cip->ic_header + cip->ic_miclen + cip->ic_trailer; 3256 3257 /* packet header may have moved, reset our local pointer */ 3258 wh = mtod(m0, struct ieee80211_frame *); 3259 } 3260 3261 if (ieee80211_radiotap_active_vap(vap)) { 3262 sc->sc_tx_th.wt_flags = 0; /* XXX */ 3263 if (iswep) 3264 sc->sc_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3265 #if 0 3266 sc->sc_tx_th.wt_rate = ds->DataRate; 3267 #endif 3268 sc->sc_tx_th.wt_txpower = ni->ni_txpower; 3269 sc->sc_tx_th.wt_antenna = sc->sc_txantenna; 3270 3271 ieee80211_radiotap_tx(vap, m0); 3272 } 3273 /* 3274 * Copy up/down the 802.11 header; the firmware requires 3275 * we present a 2-byte payload length followed by a 3276 * 4-address header (w/o QoS), followed (optionally) by 3277 * any WEP/ExtIV header (but only filled in for CCMP). 3278 * We are assured the mbuf has sufficient headroom to 3279 * prepend in-place by the setup of ic_headroom in 3280 * mwl_attach. 3281 */ 3282 if (hdrlen < sizeof(struct mwltxrec)) { 3283 const int space = sizeof(struct mwltxrec) - hdrlen; 3284 if (M_LEADINGSPACE(m0) < space) { 3285 /* NB: should never happen */ 3286 device_printf(sc->sc_dev, 3287 "not enough headroom, need %d found %zd, " 3288 "m_flags 0x%x m_len %d\n", 3289 space, M_LEADINGSPACE(m0), m0->m_flags, m0->m_len); 3290 ieee80211_dump_pkt(ic, 3291 mtod(m0, const uint8_t *), m0->m_len, 0, -1); 3292 m_freem(m0); 3293 sc->sc_stats.mst_tx_noheadroom++; 3294 return EIO; 3295 } 3296 M_PREPEND(m0, space, M_NOWAIT); 3297 } 3298 tr = mtod(m0, struct mwltxrec *); 3299 if (wh != (struct ieee80211_frame *) &tr->wh) 3300 ovbcopy(wh, &tr->wh, hdrlen); 3301 /* 3302 * Note: the "firmware length" is actually the length 3303 * of the fully formed "802.11 payload". That is, it's 3304 * everything except for the 802.11 header. In particular 3305 * this includes all crypto material including the MIC! 3306 */ 3307 tr->fwlen = htole16(pktlen - hdrlen); 3308 3309 /* 3310 * Load the DMA map so any coalescing is done. This 3311 * also calculates the number of descriptors we need. 3312 */ 3313 error = mwl_tx_dmasetup(sc, bf, m0); 3314 if (error != 0) { 3315 /* NB: stat collected in mwl_tx_dmasetup */ 3316 DPRINTF(sc, MWL_DEBUG_XMIT, 3317 "%s: unable to setup dma\n", __func__); 3318 return error; 3319 } 3320 bf->bf_node = ni; /* NB: held reference */ 3321 m0 = bf->bf_m; /* NB: may have changed */ 3322 tr = mtod(m0, struct mwltxrec *); 3323 wh = (struct ieee80211_frame *)&tr->wh; 3324 3325 /* 3326 * Formulate tx descriptor. 3327 */ 3328 ds = bf->bf_desc; 3329 txq = bf->bf_txq; 3330 3331 ds->QosCtrl = qos; /* NB: already little-endian */ 3332 #if MWL_TXDESC == 1 3333 /* 3334 * NB: multiframes should be zero because the descriptors 3335 * are initialized to zero. This should handle the case 3336 * where the driver is built with MWL_TXDESC=1 but we are 3337 * using firmware with multi-segment support. 3338 */ 3339 ds->PktPtr = htole32(bf->bf_segs[0].ds_addr); 3340 ds->PktLen = htole16(bf->bf_segs[0].ds_len); 3341 #else 3342 ds->multiframes = htole32(bf->bf_nseg); 3343 ds->PktLen = htole16(m0->m_pkthdr.len); 3344 for (i = 0; i < bf->bf_nseg; i++) { 3345 ds->PktPtrArray[i] = htole32(bf->bf_segs[i].ds_addr); 3346 ds->PktLenArray[i] = htole16(bf->bf_segs[i].ds_len); 3347 } 3348 #endif 3349 /* NB: pPhysNext, DataRate, and SapPktInfo setup once, don't touch */ 3350 ds->Format = 0; 3351 ds->pad = 0; 3352 ds->ack_wcb_addr = 0; 3353 3354 mn = MWL_NODE(ni); 3355 /* 3356 * Select transmit rate. 3357 */ 3358 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 3359 case IEEE80211_FC0_TYPE_MGT: 3360 sc->sc_stats.mst_tx_mgmt++; 3361 /* fall thru... */ 3362 case IEEE80211_FC0_TYPE_CTL: 3363 /* NB: assign to BE q to avoid bursting */ 3364 ds->TxPriority = MWL_WME_AC_BE; 3365 break; 3366 case IEEE80211_FC0_TYPE_DATA: 3367 if (!ismcast) { 3368 const struct ieee80211_txparam *tp = ni->ni_txparms; 3369 /* 3370 * EAPOL frames get forced to a fixed rate and w/o 3371 * aggregation; otherwise check for any fixed rate 3372 * for the client (may depend on association state). 3373 */ 3374 if (m0->m_flags & M_EAPOL) { 3375 const struct mwl_vap *mvp = MWL_VAP_CONST(vap); 3376 ds->Format = mvp->mv_eapolformat; 3377 ds->pad = htole16( 3378 EAGLE_TXD_FIXED_RATE | EAGLE_TXD_DONT_AGGR); 3379 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) { 3380 /* XXX pre-calculate per node */ 3381 ds->Format = htole16( 3382 mwl_calcformat(tp->ucastrate, ni)); 3383 ds->pad = htole16(EAGLE_TXD_FIXED_RATE); 3384 } 3385 /* NB: EAPOL frames will never have qos set */ 3386 if (qos == 0) 3387 ds->TxPriority = txq->qnum; 3388 #if MWL_MAXBA > 3 3389 else if (mwl_bastream_match(&mn->mn_ba[3], qos)) 3390 ds->TxPriority = mn->mn_ba[3].txq; 3391 #endif 3392 #if MWL_MAXBA > 2 3393 else if (mwl_bastream_match(&mn->mn_ba[2], qos)) 3394 ds->TxPriority = mn->mn_ba[2].txq; 3395 #endif 3396 #if MWL_MAXBA > 1 3397 else if (mwl_bastream_match(&mn->mn_ba[1], qos)) 3398 ds->TxPriority = mn->mn_ba[1].txq; 3399 #endif 3400 #if MWL_MAXBA > 0 3401 else if (mwl_bastream_match(&mn->mn_ba[0], qos)) 3402 ds->TxPriority = mn->mn_ba[0].txq; 3403 #endif 3404 else 3405 ds->TxPriority = txq->qnum; 3406 } else 3407 ds->TxPriority = txq->qnum; 3408 break; 3409 default: 3410 if_printf(ifp, "bogus frame type 0x%x (%s)\n", 3411 wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK, __func__); 3412 sc->sc_stats.mst_tx_badframetype++; 3413 m_freem(m0); 3414 return EIO; 3415 } 3416 3417 if (IFF_DUMPPKTS_XMIT(sc)) 3418 ieee80211_dump_pkt(ic, 3419 mtod(m0, const uint8_t *)+sizeof(uint16_t), 3420 m0->m_len - sizeof(uint16_t), ds->DataRate, -1); 3421 3422 MWL_TXQ_LOCK(txq); 3423 ds->Status = htole32(EAGLE_TXD_STATUS_FW_OWNED); 3424 STAILQ_INSERT_TAIL(&txq->active, bf, bf_list); 3425 MWL_TXDESC_SYNC(txq, ds, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 3426 3427 ifp->if_opackets++; 3428 sc->sc_tx_timer = 5; 3429 MWL_TXQ_UNLOCK(txq); 3430 3431 return 0; 3432 #undef IEEE80211_DIR_DSTODS 3433 } 3434 3435 static __inline int 3436 mwl_cvtlegacyrix(int rix) 3437 { 3438 #define N(x) (sizeof(x)/sizeof(x[0])) 3439 static const int ieeerates[] = 3440 { 2, 4, 11, 22, 44, 12, 18, 24, 36, 48, 72, 96, 108 }; 3441 return (rix < N(ieeerates) ? ieeerates[rix] : 0); 3442 #undef N 3443 } 3444 3445 /* 3446 * Process completed xmit descriptors from the specified queue. 3447 */ 3448 static int 3449 mwl_tx_processq(struct mwl_softc *sc, struct mwl_txq *txq) 3450 { 3451 #define EAGLE_TXD_STATUS_MCAST \ 3452 (EAGLE_TXD_STATUS_MULTICAST_TX | EAGLE_TXD_STATUS_BROADCAST_TX) 3453 struct ifnet *ifp = sc->sc_ifp; 3454 struct ieee80211com *ic = ifp->if_l2com; 3455 struct mwl_txbuf *bf; 3456 struct mwl_txdesc *ds; 3457 struct ieee80211_node *ni; 3458 struct mwl_node *an; 3459 int nreaped; 3460 uint32_t status; 3461 3462 DPRINTF(sc, MWL_DEBUG_TX_PROC, "%s: tx queue %u\n", __func__, txq->qnum); 3463 for (nreaped = 0;; nreaped++) { 3464 MWL_TXQ_LOCK(txq); 3465 bf = STAILQ_FIRST(&txq->active); 3466 if (bf == NULL) { 3467 MWL_TXQ_UNLOCK(txq); 3468 break; 3469 } 3470 ds = bf->bf_desc; 3471 MWL_TXDESC_SYNC(txq, ds, 3472 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 3473 if (ds->Status & htole32(EAGLE_TXD_STATUS_FW_OWNED)) { 3474 MWL_TXQ_UNLOCK(txq); 3475 break; 3476 } 3477 STAILQ_REMOVE_HEAD(&txq->active, bf_list); 3478 MWL_TXQ_UNLOCK(txq); 3479 3480 #ifdef MWL_DEBUG 3481 if (sc->sc_debug & MWL_DEBUG_XMIT_DESC) 3482 mwl_printtxbuf(bf, txq->qnum, nreaped); 3483 #endif 3484 ni = bf->bf_node; 3485 if (ni != NULL) { 3486 an = MWL_NODE(ni); 3487 status = le32toh(ds->Status); 3488 if (status & EAGLE_TXD_STATUS_OK) { 3489 uint16_t Format = le16toh(ds->Format); 3490 uint8_t txant = MS(Format, EAGLE_TXD_ANTENNA); 3491 3492 sc->sc_stats.mst_ant_tx[txant]++; 3493 if (status & EAGLE_TXD_STATUS_OK_RETRY) 3494 sc->sc_stats.mst_tx_retries++; 3495 if (status & EAGLE_TXD_STATUS_OK_MORE_RETRY) 3496 sc->sc_stats.mst_tx_mretries++; 3497 if (txq->qnum >= MWL_WME_AC_VO) 3498 ic->ic_wme.wme_hipri_traffic++; 3499 ni->ni_txrate = MS(Format, EAGLE_TXD_RATE); 3500 if ((Format & EAGLE_TXD_FORMAT_HT) == 0) { 3501 ni->ni_txrate = mwl_cvtlegacyrix( 3502 ni->ni_txrate); 3503 } else 3504 ni->ni_txrate |= IEEE80211_RATE_MCS; 3505 sc->sc_stats.mst_tx_rate = ni->ni_txrate; 3506 } else { 3507 if (status & EAGLE_TXD_STATUS_FAILED_LINK_ERROR) 3508 sc->sc_stats.mst_tx_linkerror++; 3509 if (status & EAGLE_TXD_STATUS_FAILED_XRETRY) 3510 sc->sc_stats.mst_tx_xretries++; 3511 if (status & EAGLE_TXD_STATUS_FAILED_AGING) 3512 sc->sc_stats.mst_tx_aging++; 3513 if (bf->bf_m->m_flags & M_FF) 3514 sc->sc_stats.mst_ff_txerr++; 3515 } 3516 /* 3517 * Do any tx complete callback. Note this must 3518 * be done before releasing the node reference. 3519 * XXX no way to figure out if frame was ACK'd 3520 */ 3521 if (bf->bf_m->m_flags & M_TXCB) { 3522 /* XXX strip fw len in case header inspected */ 3523 m_adj(bf->bf_m, sizeof(uint16_t)); 3524 ieee80211_process_callback(ni, bf->bf_m, 3525 (status & EAGLE_TXD_STATUS_OK) == 0); 3526 } 3527 /* 3528 * Reclaim reference to node. 3529 * 3530 * NB: the node may be reclaimed here if, for example 3531 * this is a DEAUTH message that was sent and the 3532 * node was timed out due to inactivity. 3533 */ 3534 ieee80211_free_node(ni); 3535 } 3536 ds->Status = htole32(EAGLE_TXD_STATUS_IDLE); 3537 3538 bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, 3539 BUS_DMASYNC_POSTWRITE); 3540 bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap); 3541 m_freem(bf->bf_m); 3542 3543 mwl_puttxbuf_tail(txq, bf); 3544 } 3545 return nreaped; 3546 #undef EAGLE_TXD_STATUS_MCAST 3547 } 3548 3549 /* 3550 * Deferred processing of transmit interrupt; special-cased 3551 * for four hardware queues, 0-3. 3552 */ 3553 static void 3554 mwl_tx_proc(void *arg, int npending) 3555 { 3556 struct mwl_softc *sc = arg; 3557 struct ifnet *ifp = sc->sc_ifp; 3558 int nreaped; 3559 3560 /* 3561 * Process each active queue. 3562 */ 3563 nreaped = 0; 3564 if (!STAILQ_EMPTY(&sc->sc_txq[0].active)) 3565 nreaped += mwl_tx_processq(sc, &sc->sc_txq[0]); 3566 if (!STAILQ_EMPTY(&sc->sc_txq[1].active)) 3567 nreaped += mwl_tx_processq(sc, &sc->sc_txq[1]); 3568 if (!STAILQ_EMPTY(&sc->sc_txq[2].active)) 3569 nreaped += mwl_tx_processq(sc, &sc->sc_txq[2]); 3570 if (!STAILQ_EMPTY(&sc->sc_txq[3].active)) 3571 nreaped += mwl_tx_processq(sc, &sc->sc_txq[3]); 3572 3573 if (nreaped != 0) { 3574 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 3575 sc->sc_tx_timer = 0; 3576 if (!IFQ_IS_EMPTY(&ifp->if_snd)) { 3577 /* NB: kick fw; the tx thread may have been preempted */ 3578 mwl_hal_txstart(sc->sc_mh, 0); 3579 mwl_start(ifp); 3580 } 3581 } 3582 } 3583 3584 static void 3585 mwl_tx_draintxq(struct mwl_softc *sc, struct mwl_txq *txq) 3586 { 3587 struct ieee80211_node *ni; 3588 struct mwl_txbuf *bf; 3589 u_int ix; 3590 3591 /* 3592 * NB: this assumes output has been stopped and 3593 * we do not need to block mwl_tx_tasklet 3594 */ 3595 for (ix = 0;; ix++) { 3596 MWL_TXQ_LOCK(txq); 3597 bf = STAILQ_FIRST(&txq->active); 3598 if (bf == NULL) { 3599 MWL_TXQ_UNLOCK(txq); 3600 break; 3601 } 3602 STAILQ_REMOVE_HEAD(&txq->active, bf_list); 3603 MWL_TXQ_UNLOCK(txq); 3604 #ifdef MWL_DEBUG 3605 if (sc->sc_debug & MWL_DEBUG_RESET) { 3606 struct ifnet *ifp = sc->sc_ifp; 3607 struct ieee80211com *ic = ifp->if_l2com; 3608 const struct mwltxrec *tr = 3609 mtod(bf->bf_m, const struct mwltxrec *); 3610 mwl_printtxbuf(bf, txq->qnum, ix); 3611 ieee80211_dump_pkt(ic, (const uint8_t *)&tr->wh, 3612 bf->bf_m->m_len - sizeof(tr->fwlen), 0, -1); 3613 } 3614 #endif /* MWL_DEBUG */ 3615 bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap); 3616 ni = bf->bf_node; 3617 if (ni != NULL) { 3618 /* 3619 * Reclaim node reference. 3620 */ 3621 ieee80211_free_node(ni); 3622 } 3623 m_freem(bf->bf_m); 3624 3625 mwl_puttxbuf_tail(txq, bf); 3626 } 3627 } 3628 3629 /* 3630 * Drain the transmit queues and reclaim resources. 3631 */ 3632 static void 3633 mwl_draintxq(struct mwl_softc *sc) 3634 { 3635 struct ifnet *ifp = sc->sc_ifp; 3636 int i; 3637 3638 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 3639 mwl_tx_draintxq(sc, &sc->sc_txq[i]); 3640 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 3641 sc->sc_tx_timer = 0; 3642 } 3643 3644 #ifdef MWL_DIAGAPI 3645 /* 3646 * Reset the transmit queues to a pristine state after a fw download. 3647 */ 3648 static void 3649 mwl_resettxq(struct mwl_softc *sc) 3650 { 3651 int i; 3652 3653 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 3654 mwl_txq_reset(sc, &sc->sc_txq[i]); 3655 } 3656 #endif /* MWL_DIAGAPI */ 3657 3658 /* 3659 * Clear the transmit queues of any frames submitted for the 3660 * specified vap. This is done when the vap is deleted so we 3661 * don't potentially reference the vap after it is gone. 3662 * Note we cannot remove the frames; we only reclaim the node 3663 * reference. 3664 */ 3665 static void 3666 mwl_cleartxq(struct mwl_softc *sc, struct ieee80211vap *vap) 3667 { 3668 struct mwl_txq *txq; 3669 struct mwl_txbuf *bf; 3670 int i; 3671 3672 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) { 3673 txq = &sc->sc_txq[i]; 3674 MWL_TXQ_LOCK(txq); 3675 STAILQ_FOREACH(bf, &txq->active, bf_list) { 3676 struct ieee80211_node *ni = bf->bf_node; 3677 if (ni != NULL && ni->ni_vap == vap) { 3678 bf->bf_node = NULL; 3679 ieee80211_free_node(ni); 3680 } 3681 } 3682 MWL_TXQ_UNLOCK(txq); 3683 } 3684 } 3685 3686 static int 3687 mwl_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 3688 const uint8_t *frm, const uint8_t *efrm) 3689 { 3690 struct mwl_softc *sc = ni->ni_ic->ic_ifp->if_softc; 3691 const struct ieee80211_action *ia; 3692 3693 ia = (const struct ieee80211_action *) frm; 3694 if (ia->ia_category == IEEE80211_ACTION_CAT_HT && 3695 ia->ia_action == IEEE80211_ACTION_HT_MIMOPWRSAVE) { 3696 const struct ieee80211_action_ht_mimopowersave *mps = 3697 (const struct ieee80211_action_ht_mimopowersave *) ia; 3698 3699 mwl_hal_setmimops(sc->sc_mh, ni->ni_macaddr, 3700 mps->am_control & IEEE80211_A_HT_MIMOPWRSAVE_ENA, 3701 MS(mps->am_control, IEEE80211_A_HT_MIMOPWRSAVE_MODE)); 3702 return 0; 3703 } else 3704 return sc->sc_recv_action(ni, wh, frm, efrm); 3705 } 3706 3707 static int 3708 mwl_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3709 int dialogtoken, int baparamset, int batimeout) 3710 { 3711 struct mwl_softc *sc = ni->ni_ic->ic_ifp->if_softc; 3712 struct ieee80211vap *vap = ni->ni_vap; 3713 struct mwl_node *mn = MWL_NODE(ni); 3714 struct mwl_bastate *bas; 3715 3716 bas = tap->txa_private; 3717 if (bas == NULL) { 3718 const MWL_HAL_BASTREAM *sp; 3719 /* 3720 * Check for a free BA stream slot. 3721 */ 3722 #if MWL_MAXBA > 3 3723 if (mn->mn_ba[3].bastream == NULL) 3724 bas = &mn->mn_ba[3]; 3725 else 3726 #endif 3727 #if MWL_MAXBA > 2 3728 if (mn->mn_ba[2].bastream == NULL) 3729 bas = &mn->mn_ba[2]; 3730 else 3731 #endif 3732 #if MWL_MAXBA > 1 3733 if (mn->mn_ba[1].bastream == NULL) 3734 bas = &mn->mn_ba[1]; 3735 else 3736 #endif 3737 #if MWL_MAXBA > 0 3738 if (mn->mn_ba[0].bastream == NULL) 3739 bas = &mn->mn_ba[0]; 3740 else 3741 #endif 3742 { 3743 /* sta already has max BA streams */ 3744 /* XXX assign BA stream to highest priority tid */ 3745 DPRINTF(sc, MWL_DEBUG_AMPDU, 3746 "%s: already has max bastreams\n", __func__); 3747 sc->sc_stats.mst_ampdu_reject++; 3748 return 0; 3749 } 3750 /* NB: no held reference to ni */ 3751 sp = mwl_hal_bastream_alloc(MWL_VAP(vap)->mv_hvap, 3752 (baparamset & IEEE80211_BAPS_POLICY_IMMEDIATE) != 0, 3753 ni->ni_macaddr, tap->txa_tid, ni->ni_htparam, 3754 ni, tap); 3755 if (sp == NULL) { 3756 /* 3757 * No available stream, return 0 so no 3758 * a-mpdu aggregation will be done. 3759 */ 3760 DPRINTF(sc, MWL_DEBUG_AMPDU, 3761 "%s: no bastream available\n", __func__); 3762 sc->sc_stats.mst_ampdu_nostream++; 3763 return 0; 3764 } 3765 DPRINTF(sc, MWL_DEBUG_AMPDU, "%s: alloc bastream %p\n", 3766 __func__, sp); 3767 /* NB: qos is left zero so we won't match in mwl_tx_start */ 3768 bas->bastream = sp; 3769 tap->txa_private = bas; 3770 } 3771 /* fetch current seq# from the firmware; if available */ 3772 if (mwl_hal_bastream_get_seqno(sc->sc_mh, bas->bastream, 3773 vap->iv_opmode == IEEE80211_M_STA ? vap->iv_myaddr : ni->ni_macaddr, 3774 &tap->txa_start) != 0) 3775 tap->txa_start = 0; 3776 return sc->sc_addba_request(ni, tap, dialogtoken, baparamset, batimeout); 3777 } 3778 3779 static int 3780 mwl_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3781 int code, int baparamset, int batimeout) 3782 { 3783 struct mwl_softc *sc = ni->ni_ic->ic_ifp->if_softc; 3784 struct mwl_bastate *bas; 3785 3786 bas = tap->txa_private; 3787 if (bas == NULL) { 3788 /* XXX should not happen */ 3789 DPRINTF(sc, MWL_DEBUG_AMPDU, 3790 "%s: no BA stream allocated, TID %d\n", 3791 __func__, tap->txa_tid); 3792 sc->sc_stats.mst_addba_nostream++; 3793 return 0; 3794 } 3795 if (code == IEEE80211_STATUS_SUCCESS) { 3796 struct ieee80211vap *vap = ni->ni_vap; 3797 int bufsiz, error; 3798 3799 /* 3800 * Tell the firmware to setup the BA stream; 3801 * we know resources are available because we 3802 * pre-allocated one before forming the request. 3803 */ 3804 bufsiz = MS(baparamset, IEEE80211_BAPS_BUFSIZ); 3805 if (bufsiz == 0) 3806 bufsiz = IEEE80211_AGGR_BAWMAX; 3807 error = mwl_hal_bastream_create(MWL_VAP(vap)->mv_hvap, 3808 bas->bastream, bufsiz, bufsiz, tap->txa_start); 3809 if (error != 0) { 3810 /* 3811 * Setup failed, return immediately so no a-mpdu 3812 * aggregation will be done. 3813 */ 3814 mwl_hal_bastream_destroy(sc->sc_mh, bas->bastream); 3815 mwl_bastream_free(bas); 3816 tap->txa_private = NULL; 3817 3818 DPRINTF(sc, MWL_DEBUG_AMPDU, 3819 "%s: create failed, error %d, bufsiz %d TID %d " 3820 "htparam 0x%x\n", __func__, error, bufsiz, 3821 tap->txa_tid, ni->ni_htparam); 3822 sc->sc_stats.mst_bacreate_failed++; 3823 return 0; 3824 } 3825 /* NB: cache txq to avoid ptr indirect */ 3826 mwl_bastream_setup(bas, tap->txa_tid, bas->bastream->txq); 3827 DPRINTF(sc, MWL_DEBUG_AMPDU, 3828 "%s: bastream %p assigned to txq %d TID %d bufsiz %d " 3829 "htparam 0x%x\n", __func__, bas->bastream, 3830 bas->txq, tap->txa_tid, bufsiz, ni->ni_htparam); 3831 } else { 3832 /* 3833 * Other side NAK'd us; return the resources. 3834 */ 3835 DPRINTF(sc, MWL_DEBUG_AMPDU, 3836 "%s: request failed with code %d, destroy bastream %p\n", 3837 __func__, code, bas->bastream); 3838 mwl_hal_bastream_destroy(sc->sc_mh, bas->bastream); 3839 mwl_bastream_free(bas); 3840 tap->txa_private = NULL; 3841 } 3842 /* NB: firmware sends BAR so we don't need to */ 3843 return sc->sc_addba_response(ni, tap, code, baparamset, batimeout); 3844 } 3845 3846 static void 3847 mwl_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3848 { 3849 struct mwl_softc *sc = ni->ni_ic->ic_ifp->if_softc; 3850 struct mwl_bastate *bas; 3851 3852 bas = tap->txa_private; 3853 if (bas != NULL) { 3854 DPRINTF(sc, MWL_DEBUG_AMPDU, "%s: destroy bastream %p\n", 3855 __func__, bas->bastream); 3856 mwl_hal_bastream_destroy(sc->sc_mh, bas->bastream); 3857 mwl_bastream_free(bas); 3858 tap->txa_private = NULL; 3859 } 3860 sc->sc_addba_stop(ni, tap); 3861 } 3862 3863 /* 3864 * Setup the rx data structures. This should only be 3865 * done once or we may get out of sync with the firmware. 3866 */ 3867 static int 3868 mwl_startrecv(struct mwl_softc *sc) 3869 { 3870 if (!sc->sc_recvsetup) { 3871 struct mwl_rxbuf *bf, *prev; 3872 struct mwl_rxdesc *ds; 3873 3874 prev = NULL; 3875 STAILQ_FOREACH(bf, &sc->sc_rxbuf, bf_list) { 3876 int error = mwl_rxbuf_init(sc, bf); 3877 if (error != 0) { 3878 DPRINTF(sc, MWL_DEBUG_RECV, 3879 "%s: mwl_rxbuf_init failed %d\n", 3880 __func__, error); 3881 return error; 3882 } 3883 if (prev != NULL) { 3884 ds = prev->bf_desc; 3885 ds->pPhysNext = htole32(bf->bf_daddr); 3886 } 3887 prev = bf; 3888 } 3889 if (prev != NULL) { 3890 ds = prev->bf_desc; 3891 ds->pPhysNext = 3892 htole32(STAILQ_FIRST(&sc->sc_rxbuf)->bf_daddr); 3893 } 3894 sc->sc_recvsetup = 1; 3895 } 3896 mwl_mode_init(sc); /* set filters, etc. */ 3897 return 0; 3898 } 3899 3900 static MWL_HAL_APMODE 3901 mwl_getapmode(const struct ieee80211vap *vap, struct ieee80211_channel *chan) 3902 { 3903 MWL_HAL_APMODE mode; 3904 3905 if (IEEE80211_IS_CHAN_HT(chan)) { 3906 if (vap->iv_flags_ht & IEEE80211_FHT_PUREN) 3907 mode = AP_MODE_N_ONLY; 3908 else if (IEEE80211_IS_CHAN_5GHZ(chan)) 3909 mode = AP_MODE_AandN; 3910 else if (vap->iv_flags & IEEE80211_F_PUREG) 3911 mode = AP_MODE_GandN; 3912 else 3913 mode = AP_MODE_BandGandN; 3914 } else if (IEEE80211_IS_CHAN_ANYG(chan)) { 3915 if (vap->iv_flags & IEEE80211_F_PUREG) 3916 mode = AP_MODE_G_ONLY; 3917 else 3918 mode = AP_MODE_MIXED; 3919 } else if (IEEE80211_IS_CHAN_B(chan)) 3920 mode = AP_MODE_B_ONLY; 3921 else if (IEEE80211_IS_CHAN_A(chan)) 3922 mode = AP_MODE_A_ONLY; 3923 else 3924 mode = AP_MODE_MIXED; /* XXX should not happen? */ 3925 return mode; 3926 } 3927 3928 static int 3929 mwl_setapmode(struct ieee80211vap *vap, struct ieee80211_channel *chan) 3930 { 3931 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 3932 return mwl_hal_setapmode(hvap, mwl_getapmode(vap, chan)); 3933 } 3934 3935 /* 3936 * Set/change channels. 3937 */ 3938 static int 3939 mwl_chan_set(struct mwl_softc *sc, struct ieee80211_channel *chan) 3940 { 3941 struct mwl_hal *mh = sc->sc_mh; 3942 struct ifnet *ifp = sc->sc_ifp; 3943 struct ieee80211com *ic = ifp->if_l2com; 3944 MWL_HAL_CHANNEL hchan; 3945 int maxtxpow; 3946 3947 DPRINTF(sc, MWL_DEBUG_RESET, "%s: chan %u MHz/flags 0x%x\n", 3948 __func__, chan->ic_freq, chan->ic_flags); 3949 3950 /* 3951 * Convert to a HAL channel description with 3952 * the flags constrained to reflect the current 3953 * operating mode. 3954 */ 3955 mwl_mapchan(&hchan, chan); 3956 mwl_hal_intrset(mh, 0); /* disable interrupts */ 3957 #if 0 3958 mwl_draintxq(sc); /* clear pending tx frames */ 3959 #endif 3960 mwl_hal_setchannel(mh, &hchan); 3961 /* 3962 * Tx power is cap'd by the regulatory setting and 3963 * possibly a user-set limit. We pass the min of 3964 * these to the hal to apply them to the cal data 3965 * for this channel. 3966 * XXX min bound? 3967 */ 3968 maxtxpow = 2*chan->ic_maxregpower; 3969 if (maxtxpow > ic->ic_txpowlimit) 3970 maxtxpow = ic->ic_txpowlimit; 3971 mwl_hal_settxpower(mh, &hchan, maxtxpow / 2); 3972 /* NB: potentially change mcast/mgt rates */ 3973 mwl_setcurchanrates(sc); 3974 3975 /* 3976 * Update internal state. 3977 */ 3978 sc->sc_tx_th.wt_chan_freq = htole16(chan->ic_freq); 3979 sc->sc_rx_th.wr_chan_freq = htole16(chan->ic_freq); 3980 if (IEEE80211_IS_CHAN_A(chan)) { 3981 sc->sc_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_A); 3982 sc->sc_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_A); 3983 } else if (IEEE80211_IS_CHAN_ANYG(chan)) { 3984 sc->sc_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_G); 3985 sc->sc_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_G); 3986 } else { 3987 sc->sc_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_B); 3988 sc->sc_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_B); 3989 } 3990 sc->sc_curchan = hchan; 3991 mwl_hal_intrset(mh, sc->sc_imask); 3992 3993 return 0; 3994 } 3995 3996 static void 3997 mwl_scan_start(struct ieee80211com *ic) 3998 { 3999 struct ifnet *ifp = ic->ic_ifp; 4000 struct mwl_softc *sc = ifp->if_softc; 4001 4002 DPRINTF(sc, MWL_DEBUG_STATE, "%s\n", __func__); 4003 } 4004 4005 static void 4006 mwl_scan_end(struct ieee80211com *ic) 4007 { 4008 struct ifnet *ifp = ic->ic_ifp; 4009 struct mwl_softc *sc = ifp->if_softc; 4010 4011 DPRINTF(sc, MWL_DEBUG_STATE, "%s\n", __func__); 4012 } 4013 4014 static void 4015 mwl_set_channel(struct ieee80211com *ic) 4016 { 4017 struct ifnet *ifp = ic->ic_ifp; 4018 struct mwl_softc *sc = ifp->if_softc; 4019 4020 (void) mwl_chan_set(sc, ic->ic_curchan); 4021 } 4022 4023 /* 4024 * Handle a channel switch request. We inform the firmware 4025 * and mark the global state to suppress various actions. 4026 * NB: we issue only one request to the fw; we may be called 4027 * multiple times if there are multiple vap's. 4028 */ 4029 static void 4030 mwl_startcsa(struct ieee80211vap *vap) 4031 { 4032 struct ieee80211com *ic = vap->iv_ic; 4033 struct mwl_softc *sc = ic->ic_ifp->if_softc; 4034 MWL_HAL_CHANNEL hchan; 4035 4036 if (sc->sc_csapending) 4037 return; 4038 4039 mwl_mapchan(&hchan, ic->ic_csa_newchan); 4040 /* 1 =>'s quiet channel */ 4041 mwl_hal_setchannelswitchie(sc->sc_mh, &hchan, 1, ic->ic_csa_count); 4042 sc->sc_csapending = 1; 4043 } 4044 4045 /* 4046 * Plumb any static WEP key for the station. This is 4047 * necessary as we must propagate the key from the 4048 * global key table of the vap to each sta db entry. 4049 */ 4050 static void 4051 mwl_setanywepkey(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 4052 { 4053 if ((vap->iv_flags & (IEEE80211_F_PRIVACY|IEEE80211_F_WPA)) == 4054 IEEE80211_F_PRIVACY && 4055 vap->iv_def_txkey != IEEE80211_KEYIX_NONE && 4056 vap->iv_nw_keys[vap->iv_def_txkey].wk_keyix != IEEE80211_KEYIX_NONE) 4057 (void) mwl_key_set(vap, &vap->iv_nw_keys[vap->iv_def_txkey], mac); 4058 } 4059 4060 static int 4061 mwl_peerstadb(struct ieee80211_node *ni, int aid, int staid, MWL_HAL_PEERINFO *pi) 4062 { 4063 #define WME(ie) ((const struct ieee80211_wme_info *) ie) 4064 struct ieee80211vap *vap = ni->ni_vap; 4065 struct mwl_hal_vap *hvap; 4066 int error; 4067 4068 if (vap->iv_opmode == IEEE80211_M_WDS) { 4069 /* 4070 * WDS vap's do not have a f/w vap; instead they piggyback 4071 * on an AP vap and we must install the sta db entry and 4072 * crypto state using that AP's handle (the WDS vap has none). 4073 */ 4074 hvap = MWL_VAP(vap)->mv_ap_hvap; 4075 } else 4076 hvap = MWL_VAP(vap)->mv_hvap; 4077 error = mwl_hal_newstation(hvap, ni->ni_macaddr, 4078 aid, staid, pi, 4079 ni->ni_flags & (IEEE80211_NODE_QOS | IEEE80211_NODE_HT), 4080 ni->ni_ies.wme_ie != NULL ? WME(ni->ni_ies.wme_ie)->wme_info : 0); 4081 if (error == 0) { 4082 /* 4083 * Setup security for this station. For sta mode this is 4084 * needed even though do the same thing on transition to 4085 * AUTH state because the call to mwl_hal_newstation 4086 * clobbers the crypto state we setup. 4087 */ 4088 mwl_setanywepkey(vap, ni->ni_macaddr); 4089 } 4090 return error; 4091 #undef WME 4092 } 4093 4094 static void 4095 mwl_setglobalkeys(struct ieee80211vap *vap) 4096 { 4097 struct ieee80211_key *wk; 4098 4099 wk = &vap->iv_nw_keys[0]; 4100 for (; wk < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; wk++) 4101 if (wk->wk_keyix != IEEE80211_KEYIX_NONE) 4102 (void) mwl_key_set(vap, wk, vap->iv_myaddr); 4103 } 4104 4105 /* 4106 * Convert a legacy rate set to a firmware bitmask. 4107 */ 4108 static uint32_t 4109 get_rate_bitmap(const struct ieee80211_rateset *rs) 4110 { 4111 uint32_t rates; 4112 int i; 4113 4114 rates = 0; 4115 for (i = 0; i < rs->rs_nrates; i++) 4116 switch (rs->rs_rates[i] & IEEE80211_RATE_VAL) { 4117 case 2: rates |= 0x001; break; 4118 case 4: rates |= 0x002; break; 4119 case 11: rates |= 0x004; break; 4120 case 22: rates |= 0x008; break; 4121 case 44: rates |= 0x010; break; 4122 case 12: rates |= 0x020; break; 4123 case 18: rates |= 0x040; break; 4124 case 24: rates |= 0x080; break; 4125 case 36: rates |= 0x100; break; 4126 case 48: rates |= 0x200; break; 4127 case 72: rates |= 0x400; break; 4128 case 96: rates |= 0x800; break; 4129 case 108: rates |= 0x1000; break; 4130 } 4131 return rates; 4132 } 4133 4134 /* 4135 * Construct an HT firmware bitmask from an HT rate set. 4136 */ 4137 static uint32_t 4138 get_htrate_bitmap(const struct ieee80211_htrateset *rs) 4139 { 4140 uint32_t rates; 4141 int i; 4142 4143 rates = 0; 4144 for (i = 0; i < rs->rs_nrates; i++) { 4145 if (rs->rs_rates[i] < 16) 4146 rates |= 1<<rs->rs_rates[i]; 4147 } 4148 return rates; 4149 } 4150 4151 /* 4152 * Craft station database entry for station. 4153 * NB: use host byte order here, the hal handles byte swapping. 4154 */ 4155 static MWL_HAL_PEERINFO * 4156 mkpeerinfo(MWL_HAL_PEERINFO *pi, const struct ieee80211_node *ni) 4157 { 4158 const struct ieee80211vap *vap = ni->ni_vap; 4159 4160 memset(pi, 0, sizeof(*pi)); 4161 pi->LegacyRateBitMap = get_rate_bitmap(&ni->ni_rates); 4162 pi->CapInfo = ni->ni_capinfo; 4163 if (ni->ni_flags & IEEE80211_NODE_HT) { 4164 /* HT capabilities, etc */ 4165 pi->HTCapabilitiesInfo = ni->ni_htcap; 4166 /* XXX pi.HTCapabilitiesInfo */ 4167 pi->MacHTParamInfo = ni->ni_htparam; 4168 pi->HTRateBitMap = get_htrate_bitmap(&ni->ni_htrates); 4169 pi->AddHtInfo.ControlChan = ni->ni_htctlchan; 4170 pi->AddHtInfo.AddChan = ni->ni_ht2ndchan; 4171 pi->AddHtInfo.OpMode = ni->ni_htopmode; 4172 pi->AddHtInfo.stbc = ni->ni_htstbc; 4173 4174 /* constrain according to local configuration */ 4175 if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40) == 0) 4176 pi->HTCapabilitiesInfo &= ~IEEE80211_HTCAP_SHORTGI40; 4177 if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20) == 0) 4178 pi->HTCapabilitiesInfo &= ~IEEE80211_HTCAP_SHORTGI20; 4179 if (ni->ni_chw != 40) 4180 pi->HTCapabilitiesInfo &= ~IEEE80211_HTCAP_CHWIDTH40; 4181 } 4182 return pi; 4183 } 4184 4185 /* 4186 * Re-create the local sta db entry for a vap to ensure 4187 * up to date WME state is pushed to the firmware. Because 4188 * this resets crypto state this must be followed by a 4189 * reload of any keys in the global key table. 4190 */ 4191 static int 4192 mwl_localstadb(struct ieee80211vap *vap) 4193 { 4194 #define WME(ie) ((const struct ieee80211_wme_info *) ie) 4195 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 4196 struct ieee80211_node *bss; 4197 MWL_HAL_PEERINFO pi; 4198 int error; 4199 4200 switch (vap->iv_opmode) { 4201 case IEEE80211_M_STA: 4202 bss = vap->iv_bss; 4203 error = mwl_hal_newstation(hvap, vap->iv_myaddr, 0, 0, 4204 vap->iv_state == IEEE80211_S_RUN ? 4205 mkpeerinfo(&pi, bss) : NULL, 4206 (bss->ni_flags & (IEEE80211_NODE_QOS | IEEE80211_NODE_HT)), 4207 bss->ni_ies.wme_ie != NULL ? 4208 WME(bss->ni_ies.wme_ie)->wme_info : 0); 4209 if (error == 0) 4210 mwl_setglobalkeys(vap); 4211 break; 4212 case IEEE80211_M_HOSTAP: 4213 case IEEE80211_M_MBSS: 4214 error = mwl_hal_newstation(hvap, vap->iv_myaddr, 4215 0, 0, NULL, vap->iv_flags & IEEE80211_F_WME, 0); 4216 if (error == 0) 4217 mwl_setglobalkeys(vap); 4218 break; 4219 default: 4220 error = 0; 4221 break; 4222 } 4223 return error; 4224 #undef WME 4225 } 4226 4227 static int 4228 mwl_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 4229 { 4230 struct mwl_vap *mvp = MWL_VAP(vap); 4231 struct mwl_hal_vap *hvap = mvp->mv_hvap; 4232 struct ieee80211com *ic = vap->iv_ic; 4233 struct ieee80211_node *ni = NULL; 4234 struct ifnet *ifp = ic->ic_ifp; 4235 struct mwl_softc *sc = ifp->if_softc; 4236 struct mwl_hal *mh = sc->sc_mh; 4237 enum ieee80211_state ostate = vap->iv_state; 4238 int error; 4239 4240 DPRINTF(sc, MWL_DEBUG_STATE, "%s: %s: %s -> %s\n", 4241 vap->iv_ifp->if_xname, __func__, 4242 ieee80211_state_name[ostate], ieee80211_state_name[nstate]); 4243 4244 callout_stop(&sc->sc_timer); 4245 /* 4246 * Clear current radar detection state. 4247 */ 4248 if (ostate == IEEE80211_S_CAC) { 4249 /* stop quiet mode radar detection */ 4250 mwl_hal_setradardetection(mh, DR_CHK_CHANNEL_AVAILABLE_STOP); 4251 } else if (sc->sc_radarena) { 4252 /* stop in-service radar detection */ 4253 mwl_hal_setradardetection(mh, DR_DFS_DISABLE); 4254 sc->sc_radarena = 0; 4255 } 4256 /* 4257 * Carry out per-state actions before doing net80211 work. 4258 */ 4259 if (nstate == IEEE80211_S_INIT) { 4260 /* NB: only ap+sta vap's have a fw entity */ 4261 if (hvap != NULL) 4262 mwl_hal_stop(hvap); 4263 } else if (nstate == IEEE80211_S_SCAN) { 4264 mwl_hal_start(hvap); 4265 /* NB: this disables beacon frames */ 4266 mwl_hal_setinframode(hvap); 4267 } else if (nstate == IEEE80211_S_AUTH) { 4268 /* 4269 * Must create a sta db entry in case a WEP key needs to 4270 * be plumbed. This entry will be overwritten if we 4271 * associate; otherwise it will be reclaimed on node free. 4272 */ 4273 ni = vap->iv_bss; 4274 MWL_NODE(ni)->mn_hvap = hvap; 4275 (void) mwl_peerstadb(ni, 0, 0, NULL); 4276 } else if (nstate == IEEE80211_S_CSA) { 4277 /* XXX move to below? */ 4278 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 4279 vap->iv_opmode == IEEE80211_M_MBSS) 4280 mwl_startcsa(vap); 4281 } else if (nstate == IEEE80211_S_CAC) { 4282 /* XXX move to below? */ 4283 /* stop ap xmit and enable quiet mode radar detection */ 4284 mwl_hal_setradardetection(mh, DR_CHK_CHANNEL_AVAILABLE_START); 4285 } 4286 4287 /* 4288 * Invoke the parent method to do net80211 work. 4289 */ 4290 error = mvp->mv_newstate(vap, nstate, arg); 4291 4292 /* 4293 * Carry out work that must be done after net80211 runs; 4294 * this work requires up to date state (e.g. iv_bss). 4295 */ 4296 if (error == 0 && nstate == IEEE80211_S_RUN) { 4297 /* NB: collect bss node again, it may have changed */ 4298 ni = vap->iv_bss; 4299 4300 DPRINTF(sc, MWL_DEBUG_STATE, 4301 "%s: %s(RUN): iv_flags 0x%08x bintvl %d bssid %s " 4302 "capinfo 0x%04x chan %d\n", 4303 vap->iv_ifp->if_xname, __func__, vap->iv_flags, 4304 ni->ni_intval, ether_sprintf(ni->ni_bssid), ni->ni_capinfo, 4305 ieee80211_chan2ieee(ic, ic->ic_curchan)); 4306 4307 /* 4308 * Recreate local sta db entry to update WME/HT state. 4309 */ 4310 mwl_localstadb(vap); 4311 switch (vap->iv_opmode) { 4312 case IEEE80211_M_HOSTAP: 4313 case IEEE80211_M_MBSS: 4314 if (ostate == IEEE80211_S_CAC) { 4315 /* enable in-service radar detection */ 4316 mwl_hal_setradardetection(mh, 4317 DR_IN_SERVICE_MONITOR_START); 4318 sc->sc_radarena = 1; 4319 } 4320 /* 4321 * Allocate and setup the beacon frame 4322 * (and related state). 4323 */ 4324 error = mwl_reset_vap(vap, IEEE80211_S_RUN); 4325 if (error != 0) { 4326 DPRINTF(sc, MWL_DEBUG_STATE, 4327 "%s: beacon setup failed, error %d\n", 4328 __func__, error); 4329 goto bad; 4330 } 4331 /* NB: must be after setting up beacon */ 4332 mwl_hal_start(hvap); 4333 break; 4334 case IEEE80211_M_STA: 4335 DPRINTF(sc, MWL_DEBUG_STATE, "%s: %s: aid 0x%x\n", 4336 vap->iv_ifp->if_xname, __func__, ni->ni_associd); 4337 /* 4338 * Set state now that we're associated. 4339 */ 4340 mwl_hal_setassocid(hvap, ni->ni_bssid, ni->ni_associd); 4341 mwl_setrates(vap); 4342 mwl_hal_setrtsthreshold(hvap, vap->iv_rtsthreshold); 4343 if ((vap->iv_flags & IEEE80211_F_DWDS) && 4344 sc->sc_ndwdsvaps++ == 0) 4345 mwl_hal_setdwds(mh, 1); 4346 break; 4347 case IEEE80211_M_WDS: 4348 DPRINTF(sc, MWL_DEBUG_STATE, "%s: %s: bssid %s\n", 4349 vap->iv_ifp->if_xname, __func__, 4350 ether_sprintf(ni->ni_bssid)); 4351 mwl_seteapolformat(vap); 4352 break; 4353 default: 4354 break; 4355 } 4356 /* 4357 * Set CS mode according to operating channel; 4358 * this mostly an optimization for 5GHz. 4359 * 4360 * NB: must follow mwl_hal_start which resets csmode 4361 */ 4362 if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 4363 mwl_hal_setcsmode(mh, CSMODE_AGGRESSIVE); 4364 else 4365 mwl_hal_setcsmode(mh, CSMODE_AUTO_ENA); 4366 /* 4367 * Start timer to prod firmware. 4368 */ 4369 if (sc->sc_ageinterval != 0) 4370 callout_reset(&sc->sc_timer, sc->sc_ageinterval*hz, 4371 mwl_agestations, sc); 4372 } else if (nstate == IEEE80211_S_SLEEP) { 4373 /* XXX set chip in power save */ 4374 } else if ((vap->iv_flags & IEEE80211_F_DWDS) && 4375 --sc->sc_ndwdsvaps == 0) 4376 mwl_hal_setdwds(mh, 0); 4377 bad: 4378 return error; 4379 } 4380 4381 /* 4382 * Manage station id's; these are separate from AID's 4383 * as AID's may have values out of the range of possible 4384 * station id's acceptable to the firmware. 4385 */ 4386 static int 4387 allocstaid(struct mwl_softc *sc, int aid) 4388 { 4389 int staid; 4390 4391 if (!(0 < aid && aid < MWL_MAXSTAID) || isset(sc->sc_staid, aid)) { 4392 /* NB: don't use 0 */ 4393 for (staid = 1; staid < MWL_MAXSTAID; staid++) 4394 if (isclr(sc->sc_staid, staid)) 4395 break; 4396 } else 4397 staid = aid; 4398 setbit(sc->sc_staid, staid); 4399 return staid; 4400 } 4401 4402 static void 4403 delstaid(struct mwl_softc *sc, int staid) 4404 { 4405 clrbit(sc->sc_staid, staid); 4406 } 4407 4408 /* 4409 * Setup driver-specific state for a newly associated node. 4410 * Note that we're called also on a re-associate, the isnew 4411 * param tells us if this is the first time or not. 4412 */ 4413 static void 4414 mwl_newassoc(struct ieee80211_node *ni, int isnew) 4415 { 4416 struct ieee80211vap *vap = ni->ni_vap; 4417 struct mwl_softc *sc = vap->iv_ic->ic_ifp->if_softc; 4418 struct mwl_node *mn = MWL_NODE(ni); 4419 MWL_HAL_PEERINFO pi; 4420 uint16_t aid; 4421 int error; 4422 4423 aid = IEEE80211_AID(ni->ni_associd); 4424 if (isnew) { 4425 mn->mn_staid = allocstaid(sc, aid); 4426 mn->mn_hvap = MWL_VAP(vap)->mv_hvap; 4427 } else { 4428 mn = MWL_NODE(ni); 4429 /* XXX reset BA stream? */ 4430 } 4431 DPRINTF(sc, MWL_DEBUG_NODE, "%s: mac %s isnew %d aid %d staid %d\n", 4432 __func__, ether_sprintf(ni->ni_macaddr), isnew, aid, mn->mn_staid); 4433 error = mwl_peerstadb(ni, aid, mn->mn_staid, mkpeerinfo(&pi, ni)); 4434 if (error != 0) { 4435 DPRINTF(sc, MWL_DEBUG_NODE, 4436 "%s: error %d creating sta db entry\n", 4437 __func__, error); 4438 /* XXX how to deal with error? */ 4439 } 4440 } 4441 4442 /* 4443 * Periodically poke the firmware to age out station state 4444 * (power save queues, pending tx aggregates). 4445 */ 4446 static void 4447 mwl_agestations(void *arg) 4448 { 4449 struct mwl_softc *sc = arg; 4450 4451 mwl_hal_setkeepalive(sc->sc_mh); 4452 if (sc->sc_ageinterval != 0) /* NB: catch dynamic changes */ 4453 callout_schedule(&sc->sc_timer, sc->sc_ageinterval*hz); 4454 } 4455 4456 static const struct mwl_hal_channel * 4457 findhalchannel(const MWL_HAL_CHANNELINFO *ci, int ieee) 4458 { 4459 int i; 4460 4461 for (i = 0; i < ci->nchannels; i++) { 4462 const struct mwl_hal_channel *hc = &ci->channels[i]; 4463 if (hc->ieee == ieee) 4464 return hc; 4465 } 4466 return NULL; 4467 } 4468 4469 static int 4470 mwl_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd, 4471 int nchan, struct ieee80211_channel chans[]) 4472 { 4473 struct mwl_softc *sc = ic->ic_ifp->if_softc; 4474 struct mwl_hal *mh = sc->sc_mh; 4475 const MWL_HAL_CHANNELINFO *ci; 4476 int i; 4477 4478 for (i = 0; i < nchan; i++) { 4479 struct ieee80211_channel *c = &chans[i]; 4480 const struct mwl_hal_channel *hc; 4481 4482 if (IEEE80211_IS_CHAN_2GHZ(c)) { 4483 mwl_hal_getchannelinfo(mh, MWL_FREQ_BAND_2DOT4GHZ, 4484 IEEE80211_IS_CHAN_HT40(c) ? 4485 MWL_CH_40_MHz_WIDTH : MWL_CH_20_MHz_WIDTH, &ci); 4486 } else if (IEEE80211_IS_CHAN_5GHZ(c)) { 4487 mwl_hal_getchannelinfo(mh, MWL_FREQ_BAND_5GHZ, 4488 IEEE80211_IS_CHAN_HT40(c) ? 4489 MWL_CH_40_MHz_WIDTH : MWL_CH_20_MHz_WIDTH, &ci); 4490 } else { 4491 if_printf(ic->ic_ifp, 4492 "%s: channel %u freq %u/0x%x not 2.4/5GHz\n", 4493 __func__, c->ic_ieee, c->ic_freq, c->ic_flags); 4494 return EINVAL; 4495 } 4496 /* 4497 * Verify channel has cal data and cap tx power. 4498 */ 4499 hc = findhalchannel(ci, c->ic_ieee); 4500 if (hc != NULL) { 4501 if (c->ic_maxpower > 2*hc->maxTxPow) 4502 c->ic_maxpower = 2*hc->maxTxPow; 4503 goto next; 4504 } 4505 if (IEEE80211_IS_CHAN_HT40(c)) { 4506 /* 4507 * Look for the extension channel since the 4508 * hal table only has the primary channel. 4509 */ 4510 hc = findhalchannel(ci, c->ic_extieee); 4511 if (hc != NULL) { 4512 if (c->ic_maxpower > 2*hc->maxTxPow) 4513 c->ic_maxpower = 2*hc->maxTxPow; 4514 goto next; 4515 } 4516 } 4517 if_printf(ic->ic_ifp, 4518 "%s: no cal data for channel %u ext %u freq %u/0x%x\n", 4519 __func__, c->ic_ieee, c->ic_extieee, 4520 c->ic_freq, c->ic_flags); 4521 return EINVAL; 4522 next: 4523 ; 4524 } 4525 return 0; 4526 } 4527 4528 #define IEEE80211_CHAN_HTG (IEEE80211_CHAN_HT|IEEE80211_CHAN_G) 4529 #define IEEE80211_CHAN_HTA (IEEE80211_CHAN_HT|IEEE80211_CHAN_A) 4530 4531 static void 4532 addchan(struct ieee80211_channel *c, int freq, int flags, int ieee, int txpow) 4533 { 4534 c->ic_freq = freq; 4535 c->ic_flags = flags; 4536 c->ic_ieee = ieee; 4537 c->ic_minpower = 0; 4538 c->ic_maxpower = 2*txpow; 4539 c->ic_maxregpower = txpow; 4540 } 4541 4542 static const struct ieee80211_channel * 4543 findchannel(const struct ieee80211_channel chans[], int nchans, 4544 int freq, int flags) 4545 { 4546 const struct ieee80211_channel *c; 4547 int i; 4548 4549 for (i = 0; i < nchans; i++) { 4550 c = &chans[i]; 4551 if (c->ic_freq == freq && c->ic_flags == flags) 4552 return c; 4553 } 4554 return NULL; 4555 } 4556 4557 static void 4558 addht40channels(struct ieee80211_channel chans[], int maxchans, int *nchans, 4559 const MWL_HAL_CHANNELINFO *ci, int flags) 4560 { 4561 struct ieee80211_channel *c; 4562 const struct ieee80211_channel *extc; 4563 const struct mwl_hal_channel *hc; 4564 int i; 4565 4566 c = &chans[*nchans]; 4567 4568 flags &= ~IEEE80211_CHAN_HT; 4569 for (i = 0; i < ci->nchannels; i++) { 4570 /* 4571 * Each entry defines an HT40 channel pair; find the 4572 * extension channel above and the insert the pair. 4573 */ 4574 hc = &ci->channels[i]; 4575 extc = findchannel(chans, *nchans, hc->freq+20, 4576 flags | IEEE80211_CHAN_HT20); 4577 if (extc != NULL) { 4578 if (*nchans >= maxchans) 4579 break; 4580 addchan(c, hc->freq, flags | IEEE80211_CHAN_HT40U, 4581 hc->ieee, hc->maxTxPow); 4582 c->ic_extieee = extc->ic_ieee; 4583 c++, (*nchans)++; 4584 if (*nchans >= maxchans) 4585 break; 4586 addchan(c, extc->ic_freq, flags | IEEE80211_CHAN_HT40D, 4587 extc->ic_ieee, hc->maxTxPow); 4588 c->ic_extieee = hc->ieee; 4589 c++, (*nchans)++; 4590 } 4591 } 4592 } 4593 4594 static void 4595 addchannels(struct ieee80211_channel chans[], int maxchans, int *nchans, 4596 const MWL_HAL_CHANNELINFO *ci, int flags) 4597 { 4598 struct ieee80211_channel *c; 4599 int i; 4600 4601 c = &chans[*nchans]; 4602 4603 for (i = 0; i < ci->nchannels; i++) { 4604 const struct mwl_hal_channel *hc; 4605 4606 hc = &ci->channels[i]; 4607 if (*nchans >= maxchans) 4608 break; 4609 addchan(c, hc->freq, flags, hc->ieee, hc->maxTxPow); 4610 c++, (*nchans)++; 4611 if (flags == IEEE80211_CHAN_G || flags == IEEE80211_CHAN_HTG) { 4612 /* g channel have a separate b-only entry */ 4613 if (*nchans >= maxchans) 4614 break; 4615 c[0] = c[-1]; 4616 c[-1].ic_flags = IEEE80211_CHAN_B; 4617 c++, (*nchans)++; 4618 } 4619 if (flags == IEEE80211_CHAN_HTG) { 4620 /* HT g channel have a separate g-only entry */ 4621 if (*nchans >= maxchans) 4622 break; 4623 c[-1].ic_flags = IEEE80211_CHAN_G; 4624 c[0] = c[-1]; 4625 c[0].ic_flags &= ~IEEE80211_CHAN_HT; 4626 c[0].ic_flags |= IEEE80211_CHAN_HT20; /* HT20 */ 4627 c++, (*nchans)++; 4628 } 4629 if (flags == IEEE80211_CHAN_HTA) { 4630 /* HT a channel have a separate a-only entry */ 4631 if (*nchans >= maxchans) 4632 break; 4633 c[-1].ic_flags = IEEE80211_CHAN_A; 4634 c[0] = c[-1]; 4635 c[0].ic_flags &= ~IEEE80211_CHAN_HT; 4636 c[0].ic_flags |= IEEE80211_CHAN_HT20; /* HT20 */ 4637 c++, (*nchans)++; 4638 } 4639 } 4640 } 4641 4642 static void 4643 getchannels(struct mwl_softc *sc, int maxchans, int *nchans, 4644 struct ieee80211_channel chans[]) 4645 { 4646 const MWL_HAL_CHANNELINFO *ci; 4647 4648 /* 4649 * Use the channel info from the hal to craft the 4650 * channel list. Note that we pass back an unsorted 4651 * list; the caller is required to sort it for us 4652 * (if desired). 4653 */ 4654 *nchans = 0; 4655 if (mwl_hal_getchannelinfo(sc->sc_mh, 4656 MWL_FREQ_BAND_2DOT4GHZ, MWL_CH_20_MHz_WIDTH, &ci) == 0) 4657 addchannels(chans, maxchans, nchans, ci, IEEE80211_CHAN_HTG); 4658 if (mwl_hal_getchannelinfo(sc->sc_mh, 4659 MWL_FREQ_BAND_5GHZ, MWL_CH_20_MHz_WIDTH, &ci) == 0) 4660 addchannels(chans, maxchans, nchans, ci, IEEE80211_CHAN_HTA); 4661 if (mwl_hal_getchannelinfo(sc->sc_mh, 4662 MWL_FREQ_BAND_2DOT4GHZ, MWL_CH_40_MHz_WIDTH, &ci) == 0) 4663 addht40channels(chans, maxchans, nchans, ci, IEEE80211_CHAN_HTG); 4664 if (mwl_hal_getchannelinfo(sc->sc_mh, 4665 MWL_FREQ_BAND_5GHZ, MWL_CH_40_MHz_WIDTH, &ci) == 0) 4666 addht40channels(chans, maxchans, nchans, ci, IEEE80211_CHAN_HTA); 4667 } 4668 4669 static void 4670 mwl_getradiocaps(struct ieee80211com *ic, 4671 int maxchans, int *nchans, struct ieee80211_channel chans[]) 4672 { 4673 struct mwl_softc *sc = ic->ic_ifp->if_softc; 4674 4675 getchannels(sc, maxchans, nchans, chans); 4676 } 4677 4678 static int 4679 mwl_getchannels(struct mwl_softc *sc) 4680 { 4681 struct ifnet *ifp = sc->sc_ifp; 4682 struct ieee80211com *ic = ifp->if_l2com; 4683 4684 /* 4685 * Use the channel info from the hal to craft the 4686 * channel list for net80211. Note that we pass up 4687 * an unsorted list; net80211 will sort it for us. 4688 */ 4689 memset(ic->ic_channels, 0, sizeof(ic->ic_channels)); 4690 ic->ic_nchans = 0; 4691 getchannels(sc, IEEE80211_CHAN_MAX, &ic->ic_nchans, ic->ic_channels); 4692 4693 ic->ic_regdomain.regdomain = SKU_DEBUG; 4694 ic->ic_regdomain.country = CTRY_DEFAULT; 4695 ic->ic_regdomain.location = 'I'; 4696 ic->ic_regdomain.isocc[0] = ' '; /* XXX? */ 4697 ic->ic_regdomain.isocc[1] = ' '; 4698 return (ic->ic_nchans == 0 ? EIO : 0); 4699 } 4700 #undef IEEE80211_CHAN_HTA 4701 #undef IEEE80211_CHAN_HTG 4702 4703 #ifdef MWL_DEBUG 4704 static void 4705 mwl_printrxbuf(const struct mwl_rxbuf *bf, u_int ix) 4706 { 4707 const struct mwl_rxdesc *ds = bf->bf_desc; 4708 uint32_t status = le32toh(ds->Status); 4709 4710 printf("R[%2u] (DS.V:%p DS.P:%p) NEXT:%08x DATA:%08x RC:%02x%s\n" 4711 " STAT:%02x LEN:%04x RSSI:%02x CHAN:%02x RATE:%02x QOS:%04x HT:%04x\n", 4712 ix, ds, (const struct mwl_desc *)bf->bf_daddr, 4713 le32toh(ds->pPhysNext), le32toh(ds->pPhysBuffData), 4714 ds->RxControl, 4715 ds->RxControl != EAGLE_RXD_CTRL_DRIVER_OWN ? 4716 "" : (status & EAGLE_RXD_STATUS_OK) ? " *" : " !", 4717 ds->Status, le16toh(ds->PktLen), ds->RSSI, ds->Channel, 4718 ds->Rate, le16toh(ds->QosCtrl), le16toh(ds->HtSig2)); 4719 } 4720 4721 static void 4722 mwl_printtxbuf(const struct mwl_txbuf *bf, u_int qnum, u_int ix) 4723 { 4724 const struct mwl_txdesc *ds = bf->bf_desc; 4725 uint32_t status = le32toh(ds->Status); 4726 4727 printf("Q%u[%3u]", qnum, ix); 4728 printf(" (DS.V:%p DS.P:%p)\n", 4729 ds, (const struct mwl_txdesc *)bf->bf_daddr); 4730 printf(" NEXT:%08x DATA:%08x LEN:%04x STAT:%08x%s\n", 4731 le32toh(ds->pPhysNext), 4732 le32toh(ds->PktPtr), le16toh(ds->PktLen), status, 4733 status & EAGLE_TXD_STATUS_USED ? 4734 "" : (status & 3) != 0 ? " *" : " !"); 4735 printf(" RATE:%02x PRI:%x QOS:%04x SAP:%08x FORMAT:%04x\n", 4736 ds->DataRate, ds->TxPriority, le16toh(ds->QosCtrl), 4737 le32toh(ds->SapPktInfo), le16toh(ds->Format)); 4738 #if MWL_TXDESC > 1 4739 printf(" MULTIFRAMES:%u LEN:%04x %04x %04x %04x %04x %04x\n" 4740 , le32toh(ds->multiframes) 4741 , le16toh(ds->PktLenArray[0]), le16toh(ds->PktLenArray[1]) 4742 , le16toh(ds->PktLenArray[2]), le16toh(ds->PktLenArray[3]) 4743 , le16toh(ds->PktLenArray[4]), le16toh(ds->PktLenArray[5]) 4744 ); 4745 printf(" DATA:%08x %08x %08x %08x %08x %08x\n" 4746 , le32toh(ds->PktPtrArray[0]), le32toh(ds->PktPtrArray[1]) 4747 , le32toh(ds->PktPtrArray[2]), le32toh(ds->PktPtrArray[3]) 4748 , le32toh(ds->PktPtrArray[4]), le32toh(ds->PktPtrArray[5]) 4749 ); 4750 #endif 4751 #if 0 4752 { const uint8_t *cp = (const uint8_t *) ds; 4753 int i; 4754 for (i = 0; i < sizeof(struct mwl_txdesc); i++) { 4755 printf("%02x ", cp[i]); 4756 if (((i+1) % 16) == 0) 4757 printf("\n"); 4758 } 4759 printf("\n"); 4760 } 4761 #endif 4762 } 4763 #endif /* MWL_DEBUG */ 4764 4765 #if 0 4766 static void 4767 mwl_txq_dump(struct mwl_txq *txq) 4768 { 4769 struct mwl_txbuf *bf; 4770 int i = 0; 4771 4772 MWL_TXQ_LOCK(txq); 4773 STAILQ_FOREACH(bf, &txq->active, bf_list) { 4774 struct mwl_txdesc *ds = bf->bf_desc; 4775 MWL_TXDESC_SYNC(txq, ds, 4776 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 4777 #ifdef MWL_DEBUG 4778 mwl_printtxbuf(bf, txq->qnum, i); 4779 #endif 4780 i++; 4781 } 4782 MWL_TXQ_UNLOCK(txq); 4783 } 4784 #endif 4785 4786 static void 4787 mwl_watchdog(void *arg) 4788 { 4789 struct mwl_softc *sc; 4790 struct ifnet *ifp; 4791 4792 sc = arg; 4793 callout_reset(&sc->sc_watchdog, hz, mwl_watchdog, sc); 4794 if (sc->sc_tx_timer == 0 || --sc->sc_tx_timer > 0) 4795 return; 4796 4797 ifp = sc->sc_ifp; 4798 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) && !sc->sc_invalid) { 4799 if (mwl_hal_setkeepalive(sc->sc_mh)) 4800 if_printf(ifp, "transmit timeout (firmware hung?)\n"); 4801 else 4802 if_printf(ifp, "transmit timeout\n"); 4803 #if 0 4804 mwl_reset(ifp); 4805 mwl_txq_dump(&sc->sc_txq[0]);/*XXX*/ 4806 #endif 4807 ifp->if_oerrors++; 4808 sc->sc_stats.mst_watchdog++; 4809 } 4810 } 4811 4812 #ifdef MWL_DIAGAPI 4813 /* 4814 * Diagnostic interface to the HAL. This is used by various 4815 * tools to do things like retrieve register contents for 4816 * debugging. The mechanism is intentionally opaque so that 4817 * it can change frequently w/o concern for compatiblity. 4818 */ 4819 static int 4820 mwl_ioctl_diag(struct mwl_softc *sc, struct mwl_diag *md) 4821 { 4822 struct mwl_hal *mh = sc->sc_mh; 4823 u_int id = md->md_id & MWL_DIAG_ID; 4824 void *indata = NULL; 4825 void *outdata = NULL; 4826 u_int32_t insize = md->md_in_size; 4827 u_int32_t outsize = md->md_out_size; 4828 int error = 0; 4829 4830 if (md->md_id & MWL_DIAG_IN) { 4831 /* 4832 * Copy in data. 4833 */ 4834 indata = malloc(insize, M_TEMP, M_NOWAIT); 4835 if (indata == NULL) { 4836 error = ENOMEM; 4837 goto bad; 4838 } 4839 error = copyin(md->md_in_data, indata, insize); 4840 if (error) 4841 goto bad; 4842 } 4843 if (md->md_id & MWL_DIAG_DYN) { 4844 /* 4845 * Allocate a buffer for the results (otherwise the HAL 4846 * returns a pointer to a buffer where we can read the 4847 * results). Note that we depend on the HAL leaving this 4848 * pointer for us to use below in reclaiming the buffer; 4849 * may want to be more defensive. 4850 */ 4851 outdata = malloc(outsize, M_TEMP, M_NOWAIT); 4852 if (outdata == NULL) { 4853 error = ENOMEM; 4854 goto bad; 4855 } 4856 } 4857 if (mwl_hal_getdiagstate(mh, id, indata, insize, &outdata, &outsize)) { 4858 if (outsize < md->md_out_size) 4859 md->md_out_size = outsize; 4860 if (outdata != NULL) 4861 error = copyout(outdata, md->md_out_data, 4862 md->md_out_size); 4863 } else { 4864 error = EINVAL; 4865 } 4866 bad: 4867 if ((md->md_id & MWL_DIAG_IN) && indata != NULL) 4868 free(indata, M_TEMP); 4869 if ((md->md_id & MWL_DIAG_DYN) && outdata != NULL) 4870 free(outdata, M_TEMP); 4871 return error; 4872 } 4873 4874 static int 4875 mwl_ioctl_reset(struct mwl_softc *sc, struct mwl_diag *md) 4876 { 4877 struct mwl_hal *mh = sc->sc_mh; 4878 int error; 4879 4880 MWL_LOCK_ASSERT(sc); 4881 4882 if (md->md_id == 0 && mwl_hal_fwload(mh, NULL) != 0) { 4883 device_printf(sc->sc_dev, "unable to load firmware\n"); 4884 return EIO; 4885 } 4886 if (mwl_hal_gethwspecs(mh, &sc->sc_hwspecs) != 0) { 4887 device_printf(sc->sc_dev, "unable to fetch h/w specs\n"); 4888 return EIO; 4889 } 4890 error = mwl_setupdma(sc); 4891 if (error != 0) { 4892 /* NB: mwl_setupdma prints a msg */ 4893 return error; 4894 } 4895 /* 4896 * Reset tx/rx data structures; after reload we must 4897 * re-start the driver's notion of the next xmit/recv. 4898 */ 4899 mwl_draintxq(sc); /* clear pending frames */ 4900 mwl_resettxq(sc); /* rebuild tx q lists */ 4901 sc->sc_rxnext = NULL; /* force rx to start at the list head */ 4902 return 0; 4903 } 4904 #endif /* MWL_DIAGAPI */ 4905 4906 static int 4907 mwl_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 4908 { 4909 #define IS_RUNNING(ifp) \ 4910 ((ifp->if_flags & IFF_UP) && (ifp->if_drv_flags & IFF_DRV_RUNNING)) 4911 struct mwl_softc *sc = ifp->if_softc; 4912 struct ieee80211com *ic = ifp->if_l2com; 4913 struct ifreq *ifr = (struct ifreq *)data; 4914 int error = 0, startall; 4915 4916 switch (cmd) { 4917 case SIOCSIFFLAGS: 4918 MWL_LOCK(sc); 4919 startall = 0; 4920 if (IS_RUNNING(ifp)) { 4921 /* 4922 * To avoid rescanning another access point, 4923 * do not call mwl_init() here. Instead, 4924 * only reflect promisc mode settings. 4925 */ 4926 mwl_mode_init(sc); 4927 } else if (ifp->if_flags & IFF_UP) { 4928 /* 4929 * Beware of being called during attach/detach 4930 * to reset promiscuous mode. In that case we 4931 * will still be marked UP but not RUNNING. 4932 * However trying to re-init the interface 4933 * is the wrong thing to do as we've already 4934 * torn down much of our state. There's 4935 * probably a better way to deal with this. 4936 */ 4937 if (!sc->sc_invalid) { 4938 mwl_init_locked(sc); /* XXX lose error */ 4939 startall = 1; 4940 } 4941 } else 4942 mwl_stop_locked(ifp, 1); 4943 MWL_UNLOCK(sc); 4944 if (startall) 4945 ieee80211_start_all(ic); 4946 break; 4947 case SIOCGMVSTATS: 4948 mwl_hal_gethwstats(sc->sc_mh, &sc->sc_stats.hw_stats); 4949 /* NB: embed these numbers to get a consistent view */ 4950 sc->sc_stats.mst_tx_packets = ifp->if_opackets; 4951 sc->sc_stats.mst_rx_packets = ifp->if_ipackets; 4952 /* 4953 * NB: Drop the softc lock in case of a page fault; 4954 * we'll accept any potential inconsisentcy in the 4955 * statistics. The alternative is to copy the data 4956 * to a local structure. 4957 */ 4958 return copyout(&sc->sc_stats, 4959 ifr->ifr_data, sizeof (sc->sc_stats)); 4960 #ifdef MWL_DIAGAPI 4961 case SIOCGMVDIAG: 4962 /* XXX check privs */ 4963 return mwl_ioctl_diag(sc, (struct mwl_diag *) ifr); 4964 case SIOCGMVRESET: 4965 /* XXX check privs */ 4966 MWL_LOCK(sc); 4967 error = mwl_ioctl_reset(sc,(struct mwl_diag *) ifr); 4968 MWL_UNLOCK(sc); 4969 break; 4970 #endif /* MWL_DIAGAPI */ 4971 case SIOCGIFMEDIA: 4972 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 4973 break; 4974 case SIOCGIFADDR: 4975 error = ether_ioctl(ifp, cmd, data); 4976 break; 4977 default: 4978 error = EINVAL; 4979 break; 4980 } 4981 return error; 4982 #undef IS_RUNNING 4983 } 4984 4985 #ifdef MWL_DEBUG 4986 static int 4987 mwl_sysctl_debug(SYSCTL_HANDLER_ARGS) 4988 { 4989 struct mwl_softc *sc = arg1; 4990 int debug, error; 4991 4992 debug = sc->sc_debug | (mwl_hal_getdebug(sc->sc_mh) << 24); 4993 error = sysctl_handle_int(oidp, &debug, 0, req); 4994 if (error || !req->newptr) 4995 return error; 4996 mwl_hal_setdebug(sc->sc_mh, debug >> 24); 4997 sc->sc_debug = debug & 0x00ffffff; 4998 return 0; 4999 } 5000 #endif /* MWL_DEBUG */ 5001 5002 static void 5003 mwl_sysctlattach(struct mwl_softc *sc) 5004 { 5005 #ifdef MWL_DEBUG 5006 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 5007 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 5008 5009 sc->sc_debug = mwl_debug; 5010 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 5011 "debug", CTLTYPE_INT | CTLFLAG_RW, sc, 0, 5012 mwl_sysctl_debug, "I", "control debugging printfs"); 5013 #endif 5014 } 5015 5016 /* 5017 * Announce various information on device/driver attach. 5018 */ 5019 static void 5020 mwl_announce(struct mwl_softc *sc) 5021 { 5022 struct ifnet *ifp = sc->sc_ifp; 5023 5024 if_printf(ifp, "Rev A%d hardware, v%d.%d.%d.%d firmware (regioncode %d)\n", 5025 sc->sc_hwspecs.hwVersion, 5026 (sc->sc_hwspecs.fwReleaseNumber>>24) & 0xff, 5027 (sc->sc_hwspecs.fwReleaseNumber>>16) & 0xff, 5028 (sc->sc_hwspecs.fwReleaseNumber>>8) & 0xff, 5029 (sc->sc_hwspecs.fwReleaseNumber>>0) & 0xff, 5030 sc->sc_hwspecs.regionCode); 5031 sc->sc_fwrelease = sc->sc_hwspecs.fwReleaseNumber; 5032 5033 if (bootverbose) { 5034 int i; 5035 for (i = 0; i <= WME_AC_VO; i++) { 5036 struct mwl_txq *txq = sc->sc_ac2q[i]; 5037 if_printf(ifp, "Use hw queue %u for %s traffic\n", 5038 txq->qnum, ieee80211_wme_acnames[i]); 5039 } 5040 } 5041 if (bootverbose || mwl_rxdesc != MWL_RXDESC) 5042 if_printf(ifp, "using %u rx descriptors\n", mwl_rxdesc); 5043 if (bootverbose || mwl_rxbuf != MWL_RXBUF) 5044 if_printf(ifp, "using %u rx buffers\n", mwl_rxbuf); 5045 if (bootverbose || mwl_txbuf != MWL_TXBUF) 5046 if_printf(ifp, "using %u tx buffers\n", mwl_txbuf); 5047 if (bootverbose && mwl_hal_ismbsscapable(sc->sc_mh)) 5048 if_printf(ifp, "multi-bss support\n"); 5049 #ifdef MWL_TX_NODROP 5050 if (bootverbose) 5051 if_printf(ifp, "no tx drop\n"); 5052 #endif 5053 } 5054