if_mwl.c revision 314667
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: stable/10/sys/dev/mwl/if_mwl.c 314667 2017-03-04 13:03:31Z avg $"); 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_dl.h> 63#include <net/if_media.h> 64#include <net/if_types.h> 65#include <net/if_arp.h> 66#include <net/ethernet.h> 67#include <net/if_llc.h> 68 69#include <net/bpf.h> 70 71#include <net80211/ieee80211_var.h> 72#include <net80211/ieee80211_regdomain.h> 73 74#ifdef INET 75#include <netinet/in.h> 76#include <netinet/if_ether.h> 77#endif /* INET */ 78 79#include <dev/mwl/if_mwlvar.h> 80#include <dev/mwl/mwldiag.h> 81 82/* idiomatic shorthands: MS = mask+shift, SM = shift+mask */ 83#define MS(v,x) (((v) & x) >> x##_S) 84#define SM(v,x) (((v) << x##_S) & x) 85 86static struct ieee80211vap *mwl_vap_create(struct ieee80211com *, 87 const char [IFNAMSIZ], int, enum ieee80211_opmode, int, 88 const uint8_t [IEEE80211_ADDR_LEN], 89 const uint8_t [IEEE80211_ADDR_LEN]); 90static void mwl_vap_delete(struct ieee80211vap *); 91static int mwl_setupdma(struct mwl_softc *); 92static int mwl_hal_reset(struct mwl_softc *sc); 93static int mwl_init_locked(struct mwl_softc *); 94static void mwl_init(void *); 95static void mwl_stop_locked(struct ifnet *, int); 96static int mwl_reset(struct ieee80211vap *, u_long); 97static void mwl_stop(struct ifnet *, int); 98static void mwl_start(struct ifnet *); 99static int mwl_raw_xmit(struct ieee80211_node *, struct mbuf *, 100 const struct ieee80211_bpf_params *); 101static int mwl_media_change(struct ifnet *); 102static void mwl_watchdog(void *); 103static int mwl_ioctl(struct ifnet *, u_long, caddr_t); 104static void mwl_radar_proc(void *, int); 105static void mwl_chanswitch_proc(void *, int); 106static void mwl_bawatchdog_proc(void *, int); 107static int mwl_key_alloc(struct ieee80211vap *, 108 struct ieee80211_key *, 109 ieee80211_keyix *, ieee80211_keyix *); 110static int mwl_key_delete(struct ieee80211vap *, 111 const struct ieee80211_key *); 112static int mwl_key_set(struct ieee80211vap *, const struct ieee80211_key *, 113 const uint8_t mac[IEEE80211_ADDR_LEN]); 114static int mwl_mode_init(struct mwl_softc *); 115static void mwl_update_mcast(struct ifnet *); 116static void mwl_update_promisc(struct ifnet *); 117static void mwl_updateslot(struct ifnet *); 118static int mwl_beacon_setup(struct ieee80211vap *); 119static void mwl_beacon_update(struct ieee80211vap *, int); 120#ifdef MWL_HOST_PS_SUPPORT 121static void mwl_update_ps(struct ieee80211vap *, int); 122static int mwl_set_tim(struct ieee80211_node *, int); 123#endif 124static int mwl_dma_setup(struct mwl_softc *); 125static void mwl_dma_cleanup(struct mwl_softc *); 126static struct ieee80211_node *mwl_node_alloc(struct ieee80211vap *, 127 const uint8_t [IEEE80211_ADDR_LEN]); 128static void mwl_node_cleanup(struct ieee80211_node *); 129static void mwl_node_drain(struct ieee80211_node *); 130static void mwl_node_getsignal(const struct ieee80211_node *, 131 int8_t *, int8_t *); 132static void mwl_node_getmimoinfo(const struct ieee80211_node *, 133 struct ieee80211_mimo_info *); 134static int mwl_rxbuf_init(struct mwl_softc *, struct mwl_rxbuf *); 135static void mwl_rx_proc(void *, int); 136static void mwl_txq_init(struct mwl_softc *sc, struct mwl_txq *, int); 137static int mwl_tx_setup(struct mwl_softc *, int, int); 138static int mwl_wme_update(struct ieee80211com *); 139static void mwl_tx_cleanupq(struct mwl_softc *, struct mwl_txq *); 140static void mwl_tx_cleanup(struct mwl_softc *); 141static uint16_t mwl_calcformat(uint8_t rate, const struct ieee80211_node *); 142static int mwl_tx_start(struct mwl_softc *, struct ieee80211_node *, 143 struct mwl_txbuf *, struct mbuf *); 144static void mwl_tx_proc(void *, int); 145static int mwl_chan_set(struct mwl_softc *, struct ieee80211_channel *); 146static void mwl_draintxq(struct mwl_softc *); 147static void mwl_cleartxq(struct mwl_softc *, struct ieee80211vap *); 148static int mwl_recv_action(struct ieee80211_node *, 149 const struct ieee80211_frame *, 150 const uint8_t *, const uint8_t *); 151static int mwl_addba_request(struct ieee80211_node *, 152 struct ieee80211_tx_ampdu *, int dialogtoken, 153 int baparamset, int batimeout); 154static int mwl_addba_response(struct ieee80211_node *, 155 struct ieee80211_tx_ampdu *, int status, 156 int baparamset, int batimeout); 157static void mwl_addba_stop(struct ieee80211_node *, 158 struct ieee80211_tx_ampdu *); 159static int mwl_startrecv(struct mwl_softc *); 160static MWL_HAL_APMODE mwl_getapmode(const struct ieee80211vap *, 161 struct ieee80211_channel *); 162static int mwl_setapmode(struct ieee80211vap *, struct ieee80211_channel*); 163static void mwl_scan_start(struct ieee80211com *); 164static void mwl_scan_end(struct ieee80211com *); 165static void mwl_set_channel(struct ieee80211com *); 166static int mwl_peerstadb(struct ieee80211_node *, 167 int aid, int staid, MWL_HAL_PEERINFO *pi); 168static int mwl_localstadb(struct ieee80211vap *); 169static int mwl_newstate(struct ieee80211vap *, enum ieee80211_state, int); 170static int allocstaid(struct mwl_softc *sc, int aid); 171static void delstaid(struct mwl_softc *sc, int staid); 172static void mwl_newassoc(struct ieee80211_node *, int); 173static void mwl_agestations(void *); 174static int mwl_setregdomain(struct ieee80211com *, 175 struct ieee80211_regdomain *, int, 176 struct ieee80211_channel []); 177static void mwl_getradiocaps(struct ieee80211com *, int, int *, 178 struct ieee80211_channel []); 179static int mwl_getchannels(struct mwl_softc *); 180 181static void mwl_sysctlattach(struct mwl_softc *); 182static void mwl_announce(struct mwl_softc *); 183 184SYSCTL_NODE(_hw, OID_AUTO, mwl, CTLFLAG_RD, 0, "Marvell driver parameters"); 185 186static int mwl_rxdesc = MWL_RXDESC; /* # rx desc's to allocate */ 187SYSCTL_INT(_hw_mwl, OID_AUTO, rxdesc, CTLFLAG_RW, &mwl_rxdesc, 188 0, "rx descriptors allocated"); 189static int mwl_rxbuf = MWL_RXBUF; /* # rx buffers to allocate */ 190SYSCTL_INT(_hw_mwl, OID_AUTO, rxbuf, CTLFLAG_RW, &mwl_rxbuf, 191 0, "rx buffers allocated"); 192TUNABLE_INT("hw.mwl.rxbuf", &mwl_rxbuf); 193static int mwl_txbuf = MWL_TXBUF; /* # tx buffers to allocate */ 194SYSCTL_INT(_hw_mwl, OID_AUTO, txbuf, CTLFLAG_RW, &mwl_txbuf, 195 0, "tx buffers allocated"); 196TUNABLE_INT("hw.mwl.txbuf", &mwl_txbuf); 197static int mwl_txcoalesce = 8; /* # tx packets to q before poking f/w*/ 198SYSCTL_INT(_hw_mwl, OID_AUTO, txcoalesce, CTLFLAG_RW, &mwl_txcoalesce, 199 0, "tx buffers to send at once"); 200TUNABLE_INT("hw.mwl.txcoalesce", &mwl_txcoalesce); 201static int mwl_rxquota = MWL_RXBUF; /* # max buffers to process */ 202SYSCTL_INT(_hw_mwl, OID_AUTO, rxquota, CTLFLAG_RW, &mwl_rxquota, 203 0, "max rx buffers to process per interrupt"); 204TUNABLE_INT("hw.mwl.rxquota", &mwl_rxquota); 205static int mwl_rxdmalow = 3; /* # min buffers for wakeup */ 206SYSCTL_INT(_hw_mwl, OID_AUTO, rxdmalow, CTLFLAG_RW, &mwl_rxdmalow, 207 0, "min free rx buffers before restarting traffic"); 208TUNABLE_INT("hw.mwl.rxdmalow", &mwl_rxdmalow); 209 210#ifdef MWL_DEBUG 211static int mwl_debug = 0; 212SYSCTL_INT(_hw_mwl, OID_AUTO, debug, CTLFLAG_RW, &mwl_debug, 213 0, "control debugging printfs"); 214TUNABLE_INT("hw.mwl.debug", &mwl_debug); 215enum { 216 MWL_DEBUG_XMIT = 0x00000001, /* basic xmit operation */ 217 MWL_DEBUG_XMIT_DESC = 0x00000002, /* xmit descriptors */ 218 MWL_DEBUG_RECV = 0x00000004, /* basic recv operation */ 219 MWL_DEBUG_RECV_DESC = 0x00000008, /* recv descriptors */ 220 MWL_DEBUG_RESET = 0x00000010, /* reset processing */ 221 MWL_DEBUG_BEACON = 0x00000020, /* beacon handling */ 222 MWL_DEBUG_INTR = 0x00000040, /* ISR */ 223 MWL_DEBUG_TX_PROC = 0x00000080, /* tx ISR proc */ 224 MWL_DEBUG_RX_PROC = 0x00000100, /* rx ISR proc */ 225 MWL_DEBUG_KEYCACHE = 0x00000200, /* key cache management */ 226 MWL_DEBUG_STATE = 0x00000400, /* 802.11 state transitions */ 227 MWL_DEBUG_NODE = 0x00000800, /* node management */ 228 MWL_DEBUG_RECV_ALL = 0x00001000, /* trace all frames (beacons) */ 229 MWL_DEBUG_TSO = 0x00002000, /* TSO processing */ 230 MWL_DEBUG_AMPDU = 0x00004000, /* BA stream handling */ 231 MWL_DEBUG_ANY = 0xffffffff 232}; 233#define IS_BEACON(wh) \ 234 ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK|IEEE80211_FC0_SUBTYPE_MASK)) == \ 235 (IEEE80211_FC0_TYPE_MGT|IEEE80211_FC0_SUBTYPE_BEACON)) 236#define IFF_DUMPPKTS_RECV(sc, wh) \ 237 (((sc->sc_debug & MWL_DEBUG_RECV) && \ 238 ((sc->sc_debug & MWL_DEBUG_RECV_ALL) || !IS_BEACON(wh))) || \ 239 (sc->sc_ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) 240#define IFF_DUMPPKTS_XMIT(sc) \ 241 ((sc->sc_debug & MWL_DEBUG_XMIT) || \ 242 (sc->sc_ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) 243#define DPRINTF(sc, m, fmt, ...) do { \ 244 if (sc->sc_debug & (m)) \ 245 printf(fmt, __VA_ARGS__); \ 246} while (0) 247#define KEYPRINTF(sc, hk, mac) do { \ 248 if (sc->sc_debug & MWL_DEBUG_KEYCACHE) \ 249 mwl_keyprint(sc, __func__, hk, mac); \ 250} while (0) 251static void mwl_printrxbuf(const struct mwl_rxbuf *bf, u_int ix); 252static void mwl_printtxbuf(const struct mwl_txbuf *bf, u_int qnum, u_int ix); 253#else 254#define IFF_DUMPPKTS_RECV(sc, wh) \ 255 ((sc->sc_ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) 256#define IFF_DUMPPKTS_XMIT(sc) \ 257 ((sc->sc_ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) 258#define DPRINTF(sc, m, fmt, ...) do { \ 259 (void) sc; \ 260} while (0) 261#define KEYPRINTF(sc, k, mac) do { \ 262 (void) sc; \ 263} while (0) 264#endif 265 266static MALLOC_DEFINE(M_MWLDEV, "mwldev", "mwl driver dma buffers"); 267 268/* 269 * Each packet has fixed front matter: a 2-byte length 270 * of the payload, followed by a 4-address 802.11 header 271 * (regardless of the actual header and always w/o any 272 * QoS header). The payload then follows. 273 */ 274struct mwltxrec { 275 uint16_t fwlen; 276 struct ieee80211_frame_addr4 wh; 277} __packed; 278 279/* 280 * Read/Write shorthands for accesses to BAR 0. Note 281 * that all BAR 1 operations are done in the "hal" and 282 * there should be no reference to them here. 283 */ 284#ifdef MWL_DEBUG 285static __inline uint32_t 286RD4(struct mwl_softc *sc, bus_size_t off) 287{ 288 return bus_space_read_4(sc->sc_io0t, sc->sc_io0h, off); 289} 290#endif 291 292static __inline void 293WR4(struct mwl_softc *sc, bus_size_t off, uint32_t val) 294{ 295 bus_space_write_4(sc->sc_io0t, sc->sc_io0h, off, val); 296} 297 298int 299mwl_attach(uint16_t devid, struct mwl_softc *sc) 300{ 301 struct ifnet *ifp; 302 struct ieee80211com *ic; 303 struct mwl_hal *mh; 304 int error = 0; 305 306 DPRINTF(sc, MWL_DEBUG_ANY, "%s: devid 0x%x\n", __func__, devid); 307 308 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 309 if (ifp == NULL) { 310 device_printf(sc->sc_dev, "cannot if_alloc()\n"); 311 return ENOSPC; 312 } 313 ic = ifp->if_l2com; 314 315 /* 316 * Setup the RX free list lock early, so it can be consistently 317 * removed. 318 */ 319 MWL_RXFREE_INIT(sc); 320 321 /* set these up early for if_printf use */ 322 if_initname(ifp, device_get_name(sc->sc_dev), 323 device_get_unit(sc->sc_dev)); 324 325 mh = mwl_hal_attach(sc->sc_dev, devid, 326 sc->sc_io1h, sc->sc_io1t, sc->sc_dmat); 327 if (mh == NULL) { 328 if_printf(ifp, "unable to attach HAL\n"); 329 error = EIO; 330 goto bad; 331 } 332 sc->sc_mh = mh; 333 /* 334 * Load firmware so we can get setup. We arbitrarily 335 * pick station firmware; we'll re-load firmware as 336 * needed so setting up the wrong mode isn't a big deal. 337 */ 338 if (mwl_hal_fwload(mh, NULL) != 0) { 339 if_printf(ifp, "unable to setup builtin firmware\n"); 340 error = EIO; 341 goto bad1; 342 } 343 if (mwl_hal_gethwspecs(mh, &sc->sc_hwspecs) != 0) { 344 if_printf(ifp, "unable to fetch h/w specs\n"); 345 error = EIO; 346 goto bad1; 347 } 348 error = mwl_getchannels(sc); 349 if (error != 0) 350 goto bad1; 351 352 sc->sc_txantenna = 0; /* h/w default */ 353 sc->sc_rxantenna = 0; /* h/w default */ 354 sc->sc_invalid = 0; /* ready to go, enable int handling */ 355 sc->sc_ageinterval = MWL_AGEINTERVAL; 356 357 /* 358 * Allocate tx+rx descriptors and populate the lists. 359 * We immediately push the information to the firmware 360 * as otherwise it gets upset. 361 */ 362 error = mwl_dma_setup(sc); 363 if (error != 0) { 364 if_printf(ifp, "failed to setup descriptors: %d\n", error); 365 goto bad1; 366 } 367 error = mwl_setupdma(sc); /* push to firmware */ 368 if (error != 0) /* NB: mwl_setupdma prints msg */ 369 goto bad1; 370 371 callout_init(&sc->sc_timer, 1); 372 callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0); 373 374 sc->sc_tq = taskqueue_create("mwl_taskq", M_NOWAIT, 375 taskqueue_thread_enqueue, &sc->sc_tq); 376 taskqueue_start_threads(&sc->sc_tq, 1, PI_NET, 377 "%s taskq", ifp->if_xname); 378 379 TASK_INIT(&sc->sc_rxtask, 0, mwl_rx_proc, sc); 380 TASK_INIT(&sc->sc_radartask, 0, mwl_radar_proc, sc); 381 TASK_INIT(&sc->sc_chanswitchtask, 0, mwl_chanswitch_proc, sc); 382 TASK_INIT(&sc->sc_bawatchdogtask, 0, mwl_bawatchdog_proc, sc); 383 384 /* NB: insure BK queue is the lowest priority h/w queue */ 385 if (!mwl_tx_setup(sc, WME_AC_BK, MWL_WME_AC_BK)) { 386 if_printf(ifp, "unable to setup xmit queue for %s traffic!\n", 387 ieee80211_wme_acnames[WME_AC_BK]); 388 error = EIO; 389 goto bad2; 390 } 391 if (!mwl_tx_setup(sc, WME_AC_BE, MWL_WME_AC_BE) || 392 !mwl_tx_setup(sc, WME_AC_VI, MWL_WME_AC_VI) || 393 !mwl_tx_setup(sc, WME_AC_VO, MWL_WME_AC_VO)) { 394 /* 395 * Not enough hardware tx queues to properly do WME; 396 * just punt and assign them all to the same h/w queue. 397 * We could do a better job of this if, for example, 398 * we allocate queues when we switch from station to 399 * AP mode. 400 */ 401 if (sc->sc_ac2q[WME_AC_VI] != NULL) 402 mwl_tx_cleanupq(sc, sc->sc_ac2q[WME_AC_VI]); 403 if (sc->sc_ac2q[WME_AC_BE] != NULL) 404 mwl_tx_cleanupq(sc, sc->sc_ac2q[WME_AC_BE]); 405 sc->sc_ac2q[WME_AC_BE] = sc->sc_ac2q[WME_AC_BK]; 406 sc->sc_ac2q[WME_AC_VI] = sc->sc_ac2q[WME_AC_BK]; 407 sc->sc_ac2q[WME_AC_VO] = sc->sc_ac2q[WME_AC_BK]; 408 } 409 TASK_INIT(&sc->sc_txtask, 0, mwl_tx_proc, sc); 410 411 ifp->if_softc = sc; 412 ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST; 413 ifp->if_start = mwl_start; 414 ifp->if_ioctl = mwl_ioctl; 415 ifp->if_init = mwl_init; 416 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 417 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 418 IFQ_SET_READY(&ifp->if_snd); 419 420 ic->ic_ifp = ifp; 421 /* XXX not right but it's not used anywhere important */ 422 ic->ic_phytype = IEEE80211_T_OFDM; 423 ic->ic_opmode = IEEE80211_M_STA; 424 ic->ic_caps = 425 IEEE80211_C_STA /* station mode supported */ 426 | IEEE80211_C_HOSTAP /* hostap mode */ 427 | IEEE80211_C_MONITOR /* monitor mode */ 428#if 0 429 | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */ 430 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 431#endif 432 | IEEE80211_C_MBSS /* mesh point link mode */ 433 | IEEE80211_C_WDS /* WDS supported */ 434 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 435 | IEEE80211_C_SHSLOT /* short slot time supported */ 436 | IEEE80211_C_WME /* WME/WMM supported */ 437 | IEEE80211_C_BURST /* xmit bursting supported */ 438 | IEEE80211_C_WPA /* capable of WPA1+WPA2 */ 439 | IEEE80211_C_BGSCAN /* capable of bg scanning */ 440 | IEEE80211_C_TXFRAG /* handle tx frags */ 441 | IEEE80211_C_TXPMGT /* capable of txpow mgt */ 442 | IEEE80211_C_DFS /* DFS supported */ 443 ; 444 445 ic->ic_htcaps = 446 IEEE80211_HTCAP_SMPS_ENA /* SM PS mode enabled */ 447 | IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width */ 448 | IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */ 449 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */ 450 | IEEE80211_HTCAP_RXSTBC_2STREAM/* 1-2 spatial streams */ 451#if MWL_AGGR_SIZE == 7935 452 | IEEE80211_HTCAP_MAXAMSDU_7935 /* max A-MSDU length */ 453#else 454 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */ 455#endif 456#if 0 457 | IEEE80211_HTCAP_PSMP /* PSMP supported */ 458 | IEEE80211_HTCAP_40INTOLERANT /* 40MHz intolerant */ 459#endif 460 /* s/w capabilities */ 461 | IEEE80211_HTC_HT /* HT operation */ 462 | IEEE80211_HTC_AMPDU /* tx A-MPDU */ 463 | IEEE80211_HTC_AMSDU /* tx A-MSDU */ 464 | IEEE80211_HTC_SMPS /* SMPS available */ 465 ; 466 467 /* 468 * Mark h/w crypto support. 469 * XXX no way to query h/w support. 470 */ 471 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP 472 | IEEE80211_CRYPTO_AES_CCM 473 | IEEE80211_CRYPTO_TKIP 474 | IEEE80211_CRYPTO_TKIPMIC 475 ; 476 /* 477 * Transmit requires space in the packet for a special 478 * format transmit record and optional padding between 479 * this record and the payload. Ask the net80211 layer 480 * to arrange this when encapsulating packets so we can 481 * add it efficiently. 482 */ 483 ic->ic_headroom = sizeof(struct mwltxrec) - 484 sizeof(struct ieee80211_frame); 485 486 /* call MI attach routine. */ 487 ieee80211_ifattach(ic, sc->sc_hwspecs.macAddr); 488 ic->ic_setregdomain = mwl_setregdomain; 489 ic->ic_getradiocaps = mwl_getradiocaps; 490 /* override default methods */ 491 ic->ic_raw_xmit = mwl_raw_xmit; 492 ic->ic_newassoc = mwl_newassoc; 493 ic->ic_updateslot = mwl_updateslot; 494 ic->ic_update_mcast = mwl_update_mcast; 495 ic->ic_update_promisc = mwl_update_promisc; 496 ic->ic_wme.wme_update = mwl_wme_update; 497 498 ic->ic_node_alloc = mwl_node_alloc; 499 sc->sc_node_cleanup = ic->ic_node_cleanup; 500 ic->ic_node_cleanup = mwl_node_cleanup; 501 sc->sc_node_drain = ic->ic_node_drain; 502 ic->ic_node_drain = mwl_node_drain; 503 ic->ic_node_getsignal = mwl_node_getsignal; 504 ic->ic_node_getmimoinfo = mwl_node_getmimoinfo; 505 506 ic->ic_scan_start = mwl_scan_start; 507 ic->ic_scan_end = mwl_scan_end; 508 ic->ic_set_channel = mwl_set_channel; 509 510 sc->sc_recv_action = ic->ic_recv_action; 511 ic->ic_recv_action = mwl_recv_action; 512 sc->sc_addba_request = ic->ic_addba_request; 513 ic->ic_addba_request = mwl_addba_request; 514 sc->sc_addba_response = ic->ic_addba_response; 515 ic->ic_addba_response = mwl_addba_response; 516 sc->sc_addba_stop = ic->ic_addba_stop; 517 ic->ic_addba_stop = mwl_addba_stop; 518 519 ic->ic_vap_create = mwl_vap_create; 520 ic->ic_vap_delete = mwl_vap_delete; 521 522 ieee80211_radiotap_attach(ic, 523 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 524 MWL_TX_RADIOTAP_PRESENT, 525 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 526 MWL_RX_RADIOTAP_PRESENT); 527 /* 528 * Setup dynamic sysctl's now that country code and 529 * regdomain are available from the hal. 530 */ 531 mwl_sysctlattach(sc); 532 533 if (bootverbose) 534 ieee80211_announce(ic); 535 mwl_announce(sc); 536 return 0; 537bad2: 538 mwl_dma_cleanup(sc); 539bad1: 540 mwl_hal_detach(mh); 541bad: 542 MWL_RXFREE_DESTROY(sc); 543 if_free(ifp); 544 sc->sc_invalid = 1; 545 return error; 546} 547 548int 549mwl_detach(struct mwl_softc *sc) 550{ 551 struct ifnet *ifp = sc->sc_ifp; 552 struct ieee80211com *ic = ifp->if_l2com; 553 554 DPRINTF(sc, MWL_DEBUG_ANY, "%s: if_flags %x\n", 555 __func__, ifp->if_flags); 556 557 mwl_stop(ifp, 1); 558 /* 559 * NB: the order of these is important: 560 * o call the 802.11 layer before detaching the hal to 561 * insure callbacks into the driver to delete global 562 * key cache entries can be handled 563 * o reclaim the tx queue data structures after calling 564 * the 802.11 layer as we'll get called back to reclaim 565 * node state and potentially want to use them 566 * o to cleanup the tx queues the hal is called, so detach 567 * it last 568 * Other than that, it's straightforward... 569 */ 570 ieee80211_ifdetach(ic); 571 callout_drain(&sc->sc_watchdog); 572 mwl_dma_cleanup(sc); 573 MWL_RXFREE_DESTROY(sc); 574 mwl_tx_cleanup(sc); 575 mwl_hal_detach(sc->sc_mh); 576 if_free(ifp); 577 578 return 0; 579} 580 581/* 582 * MAC address handling for multiple BSS on the same radio. 583 * The first vap uses the MAC address from the EEPROM. For 584 * subsequent vap's we set the U/L bit (bit 1) in the MAC 585 * address and use the next six bits as an index. 586 */ 587static void 588assign_address(struct mwl_softc *sc, uint8_t mac[IEEE80211_ADDR_LEN], int clone) 589{ 590 int i; 591 592 if (clone && mwl_hal_ismbsscapable(sc->sc_mh)) { 593 /* NB: we only do this if h/w supports multiple bssid */ 594 for (i = 0; i < 32; i++) 595 if ((sc->sc_bssidmask & (1<<i)) == 0) 596 break; 597 if (i != 0) 598 mac[0] |= (i << 2)|0x2; 599 } else 600 i = 0; 601 sc->sc_bssidmask |= 1<<i; 602 if (i == 0) 603 sc->sc_nbssid0++; 604} 605 606static void 607reclaim_address(struct mwl_softc *sc, uint8_t mac[IEEE80211_ADDR_LEN]) 608{ 609 int i = mac[0] >> 2; 610 if (i != 0 || --sc->sc_nbssid0 == 0) 611 sc->sc_bssidmask &= ~(1<<i); 612} 613 614static struct ieee80211vap * 615mwl_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 616 enum ieee80211_opmode opmode, int flags, 617 const uint8_t bssid[IEEE80211_ADDR_LEN], 618 const uint8_t mac0[IEEE80211_ADDR_LEN]) 619{ 620 struct ifnet *ifp = ic->ic_ifp; 621 struct mwl_softc *sc = ifp->if_softc; 622 struct mwl_hal *mh = sc->sc_mh; 623 struct ieee80211vap *vap, *apvap; 624 struct mwl_hal_vap *hvap; 625 struct mwl_vap *mvp; 626 uint8_t mac[IEEE80211_ADDR_LEN]; 627 628 IEEE80211_ADDR_COPY(mac, mac0); 629 switch (opmode) { 630 case IEEE80211_M_HOSTAP: 631 case IEEE80211_M_MBSS: 632 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 633 assign_address(sc, mac, flags & IEEE80211_CLONE_BSSID); 634 hvap = mwl_hal_newvap(mh, MWL_HAL_AP, mac); 635 if (hvap == NULL) { 636 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 637 reclaim_address(sc, mac); 638 return NULL; 639 } 640 break; 641 case IEEE80211_M_STA: 642 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 643 assign_address(sc, mac, flags & IEEE80211_CLONE_BSSID); 644 hvap = mwl_hal_newvap(mh, MWL_HAL_STA, mac); 645 if (hvap == NULL) { 646 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 647 reclaim_address(sc, mac); 648 return NULL; 649 } 650 /* no h/w beacon miss support; always use s/w */ 651 flags |= IEEE80211_CLONE_NOBEACONS; 652 break; 653 case IEEE80211_M_WDS: 654 hvap = NULL; /* NB: we use associated AP vap */ 655 if (sc->sc_napvaps == 0) 656 return NULL; /* no existing AP vap */ 657 break; 658 case IEEE80211_M_MONITOR: 659 hvap = NULL; 660 break; 661 case IEEE80211_M_IBSS: 662 case IEEE80211_M_AHDEMO: 663 default: 664 return NULL; 665 } 666 667 mvp = (struct mwl_vap *) malloc(sizeof(struct mwl_vap), 668 M_80211_VAP, M_NOWAIT | M_ZERO); 669 if (mvp == NULL) { 670 if (hvap != NULL) { 671 mwl_hal_delvap(hvap); 672 if ((flags & IEEE80211_CLONE_MACADDR) == 0) 673 reclaim_address(sc, mac); 674 } 675 /* XXX msg */ 676 return NULL; 677 } 678 mvp->mv_hvap = hvap; 679 if (opmode == IEEE80211_M_WDS) { 680 /* 681 * WDS vaps must have an associated AP vap; find one. 682 * XXX not right. 683 */ 684 TAILQ_FOREACH(apvap, &ic->ic_vaps, iv_next) 685 if (apvap->iv_opmode == IEEE80211_M_HOSTAP) { 686 mvp->mv_ap_hvap = MWL_VAP(apvap)->mv_hvap; 687 break; 688 } 689 KASSERT(mvp->mv_ap_hvap != NULL, ("no ap vap")); 690 } 691 vap = &mvp->mv_vap; 692 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 693 if (hvap != NULL) 694 IEEE80211_ADDR_COPY(vap->iv_myaddr, mac); 695 /* override with driver methods */ 696 mvp->mv_newstate = vap->iv_newstate; 697 vap->iv_newstate = mwl_newstate; 698 vap->iv_max_keyix = 0; /* XXX */ 699 vap->iv_key_alloc = mwl_key_alloc; 700 vap->iv_key_delete = mwl_key_delete; 701 vap->iv_key_set = mwl_key_set; 702#ifdef MWL_HOST_PS_SUPPORT 703 if (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_MBSS) { 704 vap->iv_update_ps = mwl_update_ps; 705 mvp->mv_set_tim = vap->iv_set_tim; 706 vap->iv_set_tim = mwl_set_tim; 707 } 708#endif 709 vap->iv_reset = mwl_reset; 710 vap->iv_update_beacon = mwl_beacon_update; 711 712 /* override max aid so sta's cannot assoc when we're out of sta id's */ 713 vap->iv_max_aid = MWL_MAXSTAID; 714 /* override default A-MPDU rx parameters */ 715 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_64K; 716 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_4; 717 718 /* complete setup */ 719 ieee80211_vap_attach(vap, mwl_media_change, ieee80211_media_status); 720 721 switch (vap->iv_opmode) { 722 case IEEE80211_M_HOSTAP: 723 case IEEE80211_M_MBSS: 724 case IEEE80211_M_STA: 725 /* 726 * Setup sta db entry for local address. 727 */ 728 mwl_localstadb(vap); 729 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 730 vap->iv_opmode == IEEE80211_M_MBSS) 731 sc->sc_napvaps++; 732 else 733 sc->sc_nstavaps++; 734 break; 735 case IEEE80211_M_WDS: 736 sc->sc_nwdsvaps++; 737 break; 738 default: 739 break; 740 } 741 /* 742 * Setup overall operating mode. 743 */ 744 if (sc->sc_napvaps) 745 ic->ic_opmode = IEEE80211_M_HOSTAP; 746 else if (sc->sc_nstavaps) 747 ic->ic_opmode = IEEE80211_M_STA; 748 else 749 ic->ic_opmode = opmode; 750 751 return vap; 752} 753 754static void 755mwl_vap_delete(struct ieee80211vap *vap) 756{ 757 struct mwl_vap *mvp = MWL_VAP(vap); 758 struct ifnet *parent = vap->iv_ic->ic_ifp; 759 struct mwl_softc *sc = parent->if_softc; 760 struct mwl_hal *mh = sc->sc_mh; 761 struct mwl_hal_vap *hvap = mvp->mv_hvap; 762 enum ieee80211_opmode opmode = vap->iv_opmode; 763 764 /* XXX disallow ap vap delete if WDS still present */ 765 if (parent->if_drv_flags & IFF_DRV_RUNNING) { 766 /* quiesce h/w while we remove the vap */ 767 mwl_hal_intrset(mh, 0); /* disable interrupts */ 768 } 769 ieee80211_vap_detach(vap); 770 switch (opmode) { 771 case IEEE80211_M_HOSTAP: 772 case IEEE80211_M_MBSS: 773 case IEEE80211_M_STA: 774 KASSERT(hvap != NULL, ("no hal vap handle")); 775 (void) mwl_hal_delstation(hvap, vap->iv_myaddr); 776 mwl_hal_delvap(hvap); 777 if (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_MBSS) 778 sc->sc_napvaps--; 779 else 780 sc->sc_nstavaps--; 781 /* XXX don't do it for IEEE80211_CLONE_MACADDR */ 782 reclaim_address(sc, vap->iv_myaddr); 783 break; 784 case IEEE80211_M_WDS: 785 sc->sc_nwdsvaps--; 786 break; 787 default: 788 break; 789 } 790 mwl_cleartxq(sc, vap); 791 free(mvp, M_80211_VAP); 792 if (parent->if_drv_flags & IFF_DRV_RUNNING) 793 mwl_hal_intrset(mh, sc->sc_imask); 794} 795 796void 797mwl_suspend(struct mwl_softc *sc) 798{ 799 struct ifnet *ifp = sc->sc_ifp; 800 801 DPRINTF(sc, MWL_DEBUG_ANY, "%s: if_flags %x\n", 802 __func__, ifp->if_flags); 803 804 mwl_stop(ifp, 1); 805} 806 807void 808mwl_resume(struct mwl_softc *sc) 809{ 810 struct ifnet *ifp = sc->sc_ifp; 811 812 DPRINTF(sc, MWL_DEBUG_ANY, "%s: if_flags %x\n", 813 __func__, ifp->if_flags); 814 815 if (ifp->if_flags & IFF_UP) 816 mwl_init(sc); 817} 818 819void 820mwl_shutdown(void *arg) 821{ 822 struct mwl_softc *sc = arg; 823 824 mwl_stop(sc->sc_ifp, 1); 825} 826 827/* 828 * Interrupt handler. Most of the actual processing is deferred. 829 */ 830void 831mwl_intr(void *arg) 832{ 833 struct mwl_softc *sc = arg; 834 struct mwl_hal *mh = sc->sc_mh; 835 uint32_t status; 836 837 if (sc->sc_invalid) { 838 /* 839 * The hardware is not ready/present, don't touch anything. 840 * Note this can happen early on if the IRQ is shared. 841 */ 842 DPRINTF(sc, MWL_DEBUG_ANY, "%s: invalid; ignored\n", __func__); 843 return; 844 } 845 /* 846 * Figure out the reason(s) for the interrupt. 847 */ 848 mwl_hal_getisr(mh, &status); /* NB: clears ISR too */ 849 if (status == 0) /* must be a shared irq */ 850 return; 851 852 DPRINTF(sc, MWL_DEBUG_INTR, "%s: status 0x%x imask 0x%x\n", 853 __func__, status, sc->sc_imask); 854 if (status & MACREG_A2HRIC_BIT_RX_RDY) 855 taskqueue_enqueue(sc->sc_tq, &sc->sc_rxtask); 856 if (status & MACREG_A2HRIC_BIT_TX_DONE) 857 taskqueue_enqueue(sc->sc_tq, &sc->sc_txtask); 858 if (status & MACREG_A2HRIC_BIT_BA_WATCHDOG) 859 taskqueue_enqueue(sc->sc_tq, &sc->sc_bawatchdogtask); 860 if (status & MACREG_A2HRIC_BIT_OPC_DONE) 861 mwl_hal_cmddone(mh); 862 if (status & MACREG_A2HRIC_BIT_MAC_EVENT) { 863 ; 864 } 865 if (status & MACREG_A2HRIC_BIT_ICV_ERROR) { 866 /* TKIP ICV error */ 867 sc->sc_stats.mst_rx_badtkipicv++; 868 } 869 if (status & MACREG_A2HRIC_BIT_QUEUE_EMPTY) { 870 /* 11n aggregation queue is empty, re-fill */ 871 ; 872 } 873 if (status & MACREG_A2HRIC_BIT_QUEUE_FULL) { 874 ; 875 } 876 if (status & MACREG_A2HRIC_BIT_RADAR_DETECT) { 877 /* radar detected, process event */ 878 taskqueue_enqueue(sc->sc_tq, &sc->sc_radartask); 879 } 880 if (status & MACREG_A2HRIC_BIT_CHAN_SWITCH) { 881 /* DFS channel switch */ 882 taskqueue_enqueue(sc->sc_tq, &sc->sc_chanswitchtask); 883 } 884} 885 886static void 887mwl_radar_proc(void *arg, int pending) 888{ 889 struct mwl_softc *sc = arg; 890 struct ifnet *ifp = sc->sc_ifp; 891 struct ieee80211com *ic = ifp->if_l2com; 892 893 DPRINTF(sc, MWL_DEBUG_ANY, "%s: radar detected, pending %u\n", 894 __func__, pending); 895 896 sc->sc_stats.mst_radardetect++; 897 /* XXX stop h/w BA streams? */ 898 899 IEEE80211_LOCK(ic); 900 ieee80211_dfs_notify_radar(ic, ic->ic_curchan); 901 IEEE80211_UNLOCK(ic); 902} 903 904static void 905mwl_chanswitch_proc(void *arg, int pending) 906{ 907 struct mwl_softc *sc = arg; 908 struct ifnet *ifp = sc->sc_ifp; 909 struct ieee80211com *ic = ifp->if_l2com; 910 911 DPRINTF(sc, MWL_DEBUG_ANY, "%s: channel switch notice, pending %u\n", 912 __func__, pending); 913 914 IEEE80211_LOCK(ic); 915 sc->sc_csapending = 0; 916 ieee80211_csa_completeswitch(ic); 917 IEEE80211_UNLOCK(ic); 918} 919 920static void 921mwl_bawatchdog(const MWL_HAL_BASTREAM *sp) 922{ 923 struct ieee80211_node *ni = sp->data[0]; 924 925 /* send DELBA and drop the stream */ 926 ieee80211_ampdu_stop(ni, sp->data[1], IEEE80211_REASON_UNSPECIFIED); 927} 928 929static void 930mwl_bawatchdog_proc(void *arg, int pending) 931{ 932 struct mwl_softc *sc = arg; 933 struct mwl_hal *mh = sc->sc_mh; 934 const MWL_HAL_BASTREAM *sp; 935 uint8_t bitmap, n; 936 937 sc->sc_stats.mst_bawatchdog++; 938 939 if (mwl_hal_getwatchdogbitmap(mh, &bitmap) != 0) { 940 DPRINTF(sc, MWL_DEBUG_AMPDU, 941 "%s: could not get bitmap\n", __func__); 942 sc->sc_stats.mst_bawatchdog_failed++; 943 return; 944 } 945 DPRINTF(sc, MWL_DEBUG_AMPDU, "%s: bitmap 0x%x\n", __func__, bitmap); 946 if (bitmap == 0xff) { 947 n = 0; 948 /* disable all ba streams */ 949 for (bitmap = 0; bitmap < 8; bitmap++) { 950 sp = mwl_hal_bastream_lookup(mh, bitmap); 951 if (sp != NULL) { 952 mwl_bawatchdog(sp); 953 n++; 954 } 955 } 956 if (n == 0) { 957 DPRINTF(sc, MWL_DEBUG_AMPDU, 958 "%s: no BA streams found\n", __func__); 959 sc->sc_stats.mst_bawatchdog_empty++; 960 } 961 } else if (bitmap != 0xaa) { 962 /* disable a single ba stream */ 963 sp = mwl_hal_bastream_lookup(mh, bitmap); 964 if (sp != NULL) { 965 mwl_bawatchdog(sp); 966 } else { 967 DPRINTF(sc, MWL_DEBUG_AMPDU, 968 "%s: no BA stream %d\n", __func__, bitmap); 969 sc->sc_stats.mst_bawatchdog_notfound++; 970 } 971 } 972} 973 974/* 975 * Convert net80211 channel to a HAL channel. 976 */ 977static void 978mwl_mapchan(MWL_HAL_CHANNEL *hc, const struct ieee80211_channel *chan) 979{ 980 hc->channel = chan->ic_ieee; 981 982 *(uint32_t *)&hc->channelFlags = 0; 983 if (IEEE80211_IS_CHAN_2GHZ(chan)) 984 hc->channelFlags.FreqBand = MWL_FREQ_BAND_2DOT4GHZ; 985 else if (IEEE80211_IS_CHAN_5GHZ(chan)) 986 hc->channelFlags.FreqBand = MWL_FREQ_BAND_5GHZ; 987 if (IEEE80211_IS_CHAN_HT40(chan)) { 988 hc->channelFlags.ChnlWidth = MWL_CH_40_MHz_WIDTH; 989 if (IEEE80211_IS_CHAN_HT40U(chan)) 990 hc->channelFlags.ExtChnlOffset = MWL_EXT_CH_ABOVE_CTRL_CH; 991 else 992 hc->channelFlags.ExtChnlOffset = MWL_EXT_CH_BELOW_CTRL_CH; 993 } else 994 hc->channelFlags.ChnlWidth = MWL_CH_20_MHz_WIDTH; 995 /* XXX 10MHz channels */ 996} 997 998/* 999 * Inform firmware of our tx/rx dma setup. The BAR 0 1000 * writes below are for compatibility with older firmware. 1001 * For current firmware we send this information with a 1002 * cmd block via mwl_hal_sethwdma. 1003 */ 1004static int 1005mwl_setupdma(struct mwl_softc *sc) 1006{ 1007 int error, i; 1008 1009 sc->sc_hwdma.rxDescRead = sc->sc_rxdma.dd_desc_paddr; 1010 WR4(sc, sc->sc_hwspecs.rxDescRead, sc->sc_hwdma.rxDescRead); 1011 WR4(sc, sc->sc_hwspecs.rxDescWrite, sc->sc_hwdma.rxDescRead); 1012 1013 for (i = 0; i < MWL_NUM_TX_QUEUES-MWL_NUM_ACK_QUEUES; i++) { 1014 struct mwl_txq *txq = &sc->sc_txq[i]; 1015 sc->sc_hwdma.wcbBase[i] = txq->dma.dd_desc_paddr; 1016 WR4(sc, sc->sc_hwspecs.wcbBase[i], sc->sc_hwdma.wcbBase[i]); 1017 } 1018 sc->sc_hwdma.maxNumTxWcb = mwl_txbuf; 1019 sc->sc_hwdma.maxNumWCB = MWL_NUM_TX_QUEUES-MWL_NUM_ACK_QUEUES; 1020 1021 error = mwl_hal_sethwdma(sc->sc_mh, &sc->sc_hwdma); 1022 if (error != 0) { 1023 device_printf(sc->sc_dev, 1024 "unable to setup tx/rx dma; hal status %u\n", error); 1025 /* XXX */ 1026 } 1027 return error; 1028} 1029 1030/* 1031 * Inform firmware of tx rate parameters. 1032 * Called after a channel change. 1033 */ 1034static int 1035mwl_setcurchanrates(struct mwl_softc *sc) 1036{ 1037 struct ifnet *ifp = sc->sc_ifp; 1038 struct ieee80211com *ic = ifp->if_l2com; 1039 const struct ieee80211_rateset *rs; 1040 MWL_HAL_TXRATE rates; 1041 1042 memset(&rates, 0, sizeof(rates)); 1043 rs = ieee80211_get_suprates(ic, ic->ic_curchan); 1044 /* rate used to send management frames */ 1045 rates.MgtRate = rs->rs_rates[0] & IEEE80211_RATE_VAL; 1046 /* rate used to send multicast frames */ 1047 rates.McastRate = rates.MgtRate; 1048 1049 return mwl_hal_settxrate_auto(sc->sc_mh, &rates); 1050} 1051 1052/* 1053 * Inform firmware of tx rate parameters. Called whenever 1054 * user-settable params change and after a channel change. 1055 */ 1056static int 1057mwl_setrates(struct ieee80211vap *vap) 1058{ 1059 struct mwl_vap *mvp = MWL_VAP(vap); 1060 struct ieee80211_node *ni = vap->iv_bss; 1061 const struct ieee80211_txparam *tp = ni->ni_txparms; 1062 MWL_HAL_TXRATE rates; 1063 1064 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("state %d", vap->iv_state)); 1065 1066 /* 1067 * Update the h/w rate map. 1068 * NB: 0x80 for MCS is passed through unchanged 1069 */ 1070 memset(&rates, 0, sizeof(rates)); 1071 /* rate used to send management frames */ 1072 rates.MgtRate = tp->mgmtrate; 1073 /* rate used to send multicast frames */ 1074 rates.McastRate = tp->mcastrate; 1075 1076 /* while here calculate EAPOL fixed rate cookie */ 1077 mvp->mv_eapolformat = htole16(mwl_calcformat(rates.MgtRate, ni)); 1078 1079 return mwl_hal_settxrate(mvp->mv_hvap, 1080 tp->ucastrate != IEEE80211_FIXED_RATE_NONE ? 1081 RATE_FIXED : RATE_AUTO, &rates); 1082} 1083 1084/* 1085 * Setup a fixed xmit rate cookie for EAPOL frames. 1086 */ 1087static void 1088mwl_seteapolformat(struct ieee80211vap *vap) 1089{ 1090 struct mwl_vap *mvp = MWL_VAP(vap); 1091 struct ieee80211_node *ni = vap->iv_bss; 1092 enum ieee80211_phymode mode; 1093 uint8_t rate; 1094 1095 KASSERT(vap->iv_state == IEEE80211_S_RUN, ("state %d", vap->iv_state)); 1096 1097 mode = ieee80211_chan2mode(ni->ni_chan); 1098 /* 1099 * Use legacy rates when operating a mixed HT+non-HT bss. 1100 * NB: this may violate POLA for sta and wds vap's. 1101 */ 1102 if (mode == IEEE80211_MODE_11NA && 1103 (vap->iv_flags_ht & IEEE80211_FHT_PUREN) == 0) 1104 rate = vap->iv_txparms[IEEE80211_MODE_11A].mgmtrate; 1105 else if (mode == IEEE80211_MODE_11NG && 1106 (vap->iv_flags_ht & IEEE80211_FHT_PUREN) == 0) 1107 rate = vap->iv_txparms[IEEE80211_MODE_11G].mgmtrate; 1108 else 1109 rate = vap->iv_txparms[mode].mgmtrate; 1110 1111 mvp->mv_eapolformat = htole16(mwl_calcformat(rate, ni)); 1112} 1113 1114/* 1115 * Map SKU+country code to region code for radar bin'ing. 1116 */ 1117static int 1118mwl_map2regioncode(const struct ieee80211_regdomain *rd) 1119{ 1120 switch (rd->regdomain) { 1121 case SKU_FCC: 1122 case SKU_FCC3: 1123 return DOMAIN_CODE_FCC; 1124 case SKU_CA: 1125 return DOMAIN_CODE_IC; 1126 case SKU_ETSI: 1127 case SKU_ETSI2: 1128 case SKU_ETSI3: 1129 if (rd->country == CTRY_SPAIN) 1130 return DOMAIN_CODE_SPAIN; 1131 if (rd->country == CTRY_FRANCE || rd->country == CTRY_FRANCE2) 1132 return DOMAIN_CODE_FRANCE; 1133 /* XXX force 1.3.1 radar type */ 1134 return DOMAIN_CODE_ETSI_131; 1135 case SKU_JAPAN: 1136 return DOMAIN_CODE_MKK; 1137 case SKU_ROW: 1138 return DOMAIN_CODE_DGT; /* Taiwan */ 1139 case SKU_APAC: 1140 case SKU_APAC2: 1141 case SKU_APAC3: 1142 return DOMAIN_CODE_AUS; /* Australia */ 1143 } 1144 /* XXX KOREA? */ 1145 return DOMAIN_CODE_FCC; /* XXX? */ 1146} 1147 1148static int 1149mwl_hal_reset(struct mwl_softc *sc) 1150{ 1151 struct ifnet *ifp = sc->sc_ifp; 1152 struct ieee80211com *ic = ifp->if_l2com; 1153 struct mwl_hal *mh = sc->sc_mh; 1154 1155 mwl_hal_setantenna(mh, WL_ANTENNATYPE_RX, sc->sc_rxantenna); 1156 mwl_hal_setantenna(mh, WL_ANTENNATYPE_TX, sc->sc_txantenna); 1157 mwl_hal_setradio(mh, 1, WL_AUTO_PREAMBLE); 1158 mwl_hal_setwmm(sc->sc_mh, (ic->ic_flags & IEEE80211_F_WME) != 0); 1159 mwl_chan_set(sc, ic->ic_curchan); 1160 /* NB: RF/RA performance tuned for indoor mode */ 1161 mwl_hal_setrateadaptmode(mh, 0); 1162 mwl_hal_setoptimizationlevel(mh, 1163 (ic->ic_flags & IEEE80211_F_BURST) != 0); 1164 1165 mwl_hal_setregioncode(mh, mwl_map2regioncode(&ic->ic_regdomain)); 1166 1167 mwl_hal_setaggampduratemode(mh, 1, 80); /* XXX */ 1168 mwl_hal_setcfend(mh, 0); /* XXX */ 1169 1170 return 1; 1171} 1172 1173static int 1174mwl_init_locked(struct mwl_softc *sc) 1175{ 1176 struct ifnet *ifp = sc->sc_ifp; 1177 struct mwl_hal *mh = sc->sc_mh; 1178 int error = 0; 1179 1180 DPRINTF(sc, MWL_DEBUG_ANY, "%s: if_flags 0x%x\n", 1181 __func__, ifp->if_flags); 1182 1183 MWL_LOCK_ASSERT(sc); 1184 1185 /* 1186 * Stop anything previously setup. This is safe 1187 * whether this is the first time through or not. 1188 */ 1189 mwl_stop_locked(ifp, 0); 1190 1191 /* 1192 * Push vap-independent state to the firmware. 1193 */ 1194 if (!mwl_hal_reset(sc)) { 1195 if_printf(ifp, "unable to reset hardware\n"); 1196 return EIO; 1197 } 1198 1199 /* 1200 * Setup recv (once); transmit is already good to go. 1201 */ 1202 error = mwl_startrecv(sc); 1203 if (error != 0) { 1204 if_printf(ifp, "unable to start recv logic\n"); 1205 return error; 1206 } 1207 1208 /* 1209 * Enable interrupts. 1210 */ 1211 sc->sc_imask = MACREG_A2HRIC_BIT_RX_RDY 1212 | MACREG_A2HRIC_BIT_TX_DONE 1213 | MACREG_A2HRIC_BIT_OPC_DONE 1214#if 0 1215 | MACREG_A2HRIC_BIT_MAC_EVENT 1216#endif 1217 | MACREG_A2HRIC_BIT_ICV_ERROR 1218 | MACREG_A2HRIC_BIT_RADAR_DETECT 1219 | MACREG_A2HRIC_BIT_CHAN_SWITCH 1220#if 0 1221 | MACREG_A2HRIC_BIT_QUEUE_EMPTY 1222#endif 1223 | MACREG_A2HRIC_BIT_BA_WATCHDOG 1224 | MACREQ_A2HRIC_BIT_TX_ACK 1225 ; 1226 1227 ifp->if_drv_flags |= IFF_DRV_RUNNING; 1228 mwl_hal_intrset(mh, sc->sc_imask); 1229 callout_reset(&sc->sc_watchdog, hz, mwl_watchdog, sc); 1230 1231 return 0; 1232} 1233 1234static void 1235mwl_init(void *arg) 1236{ 1237 struct mwl_softc *sc = arg; 1238 struct ifnet *ifp = sc->sc_ifp; 1239 struct ieee80211com *ic = ifp->if_l2com; 1240 int error = 0; 1241 1242 DPRINTF(sc, MWL_DEBUG_ANY, "%s: if_flags 0x%x\n", 1243 __func__, ifp->if_flags); 1244 1245 MWL_LOCK(sc); 1246 error = mwl_init_locked(sc); 1247 MWL_UNLOCK(sc); 1248 1249 if (error == 0) 1250 ieee80211_start_all(ic); /* start all vap's */ 1251} 1252 1253static void 1254mwl_stop_locked(struct ifnet *ifp, int disable) 1255{ 1256 struct mwl_softc *sc = ifp->if_softc; 1257 1258 DPRINTF(sc, MWL_DEBUG_ANY, "%s: invalid %u if_flags 0x%x\n", 1259 __func__, sc->sc_invalid, ifp->if_flags); 1260 1261 MWL_LOCK_ASSERT(sc); 1262 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1263 /* 1264 * Shutdown the hardware and driver. 1265 */ 1266 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1267 callout_stop(&sc->sc_watchdog); 1268 sc->sc_tx_timer = 0; 1269 mwl_draintxq(sc); 1270 } 1271} 1272 1273static void 1274mwl_stop(struct ifnet *ifp, int disable) 1275{ 1276 struct mwl_softc *sc = ifp->if_softc; 1277 1278 MWL_LOCK(sc); 1279 mwl_stop_locked(ifp, disable); 1280 MWL_UNLOCK(sc); 1281} 1282 1283static int 1284mwl_reset_vap(struct ieee80211vap *vap, int state) 1285{ 1286 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1287 struct ieee80211com *ic = vap->iv_ic; 1288 1289 if (state == IEEE80211_S_RUN) 1290 mwl_setrates(vap); 1291 /* XXX off by 1? */ 1292 mwl_hal_setrtsthreshold(hvap, vap->iv_rtsthreshold); 1293 /* XXX auto? 20/40 split? */ 1294 mwl_hal_sethtgi(hvap, (vap->iv_flags_ht & 1295 (IEEE80211_FHT_SHORTGI20|IEEE80211_FHT_SHORTGI40)) ? 1 : 0); 1296 mwl_hal_setnprot(hvap, ic->ic_htprotmode == IEEE80211_PROT_NONE ? 1297 HTPROTECT_NONE : HTPROTECT_AUTO); 1298 /* XXX txpower cap */ 1299 1300 /* re-setup beacons */ 1301 if (state == IEEE80211_S_RUN && 1302 (vap->iv_opmode == IEEE80211_M_HOSTAP || 1303 vap->iv_opmode == IEEE80211_M_MBSS || 1304 vap->iv_opmode == IEEE80211_M_IBSS)) { 1305 mwl_setapmode(vap, vap->iv_bss->ni_chan); 1306 mwl_hal_setnprotmode(hvap, 1307 MS(ic->ic_curhtprotmode, IEEE80211_HTINFO_OPMODE)); 1308 return mwl_beacon_setup(vap); 1309 } 1310 return 0; 1311} 1312 1313/* 1314 * Reset the hardware w/o losing operational state. 1315 * Used to to reset or reload hardware state for a vap. 1316 */ 1317static int 1318mwl_reset(struct ieee80211vap *vap, u_long cmd) 1319{ 1320 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1321 int error = 0; 1322 1323 if (hvap != NULL) { /* WDS, MONITOR, etc. */ 1324 struct ieee80211com *ic = vap->iv_ic; 1325 struct ifnet *ifp = ic->ic_ifp; 1326 struct mwl_softc *sc = ifp->if_softc; 1327 struct mwl_hal *mh = sc->sc_mh; 1328 1329 /* XXX handle DWDS sta vap change */ 1330 /* XXX do we need to disable interrupts? */ 1331 mwl_hal_intrset(mh, 0); /* disable interrupts */ 1332 error = mwl_reset_vap(vap, vap->iv_state); 1333 mwl_hal_intrset(mh, sc->sc_imask); 1334 } 1335 return error; 1336} 1337 1338/* 1339 * Allocate a tx buffer for sending a frame. The 1340 * packet is assumed to have the WME AC stored so 1341 * we can use it to select the appropriate h/w queue. 1342 */ 1343static struct mwl_txbuf * 1344mwl_gettxbuf(struct mwl_softc *sc, struct mwl_txq *txq) 1345{ 1346 struct mwl_txbuf *bf; 1347 1348 /* 1349 * Grab a TX buffer and associated resources. 1350 */ 1351 MWL_TXQ_LOCK(txq); 1352 bf = STAILQ_FIRST(&txq->free); 1353 if (bf != NULL) { 1354 STAILQ_REMOVE_HEAD(&txq->free, bf_list); 1355 txq->nfree--; 1356 } 1357 MWL_TXQ_UNLOCK(txq); 1358 if (bf == NULL) 1359 DPRINTF(sc, MWL_DEBUG_XMIT, 1360 "%s: out of xmit buffers on q %d\n", __func__, txq->qnum); 1361 return bf; 1362} 1363 1364/* 1365 * Return a tx buffer to the queue it came from. Note there 1366 * are two cases because we must preserve the order of buffers 1367 * as it reflects the fixed order of descriptors in memory 1368 * (the firmware pre-fetches descriptors so we cannot reorder). 1369 */ 1370static void 1371mwl_puttxbuf_head(struct mwl_txq *txq, struct mwl_txbuf *bf) 1372{ 1373 bf->bf_m = NULL; 1374 bf->bf_node = NULL; 1375 MWL_TXQ_LOCK(txq); 1376 STAILQ_INSERT_HEAD(&txq->free, bf, bf_list); 1377 txq->nfree++; 1378 MWL_TXQ_UNLOCK(txq); 1379} 1380 1381static void 1382mwl_puttxbuf_tail(struct mwl_txq *txq, struct mwl_txbuf *bf) 1383{ 1384 bf->bf_m = NULL; 1385 bf->bf_node = NULL; 1386 MWL_TXQ_LOCK(txq); 1387 STAILQ_INSERT_TAIL(&txq->free, bf, bf_list); 1388 txq->nfree++; 1389 MWL_TXQ_UNLOCK(txq); 1390} 1391 1392static void 1393mwl_start(struct ifnet *ifp) 1394{ 1395 struct mwl_softc *sc = ifp->if_softc; 1396 struct ieee80211_node *ni; 1397 struct mwl_txbuf *bf; 1398 struct mbuf *m; 1399 struct mwl_txq *txq = NULL; /* XXX silence gcc */ 1400 int nqueued; 1401 1402 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || sc->sc_invalid) 1403 return; 1404 nqueued = 0; 1405 for (;;) { 1406 bf = NULL; 1407 IFQ_DEQUEUE(&ifp->if_snd, m); 1408 if (m == NULL) 1409 break; 1410 /* 1411 * Grab the node for the destination. 1412 */ 1413 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1414 KASSERT(ni != NULL, ("no node")); 1415 m->m_pkthdr.rcvif = NULL; /* committed, clear ref */ 1416 /* 1417 * Grab a TX buffer and associated resources. 1418 * We honor the classification by the 802.11 layer. 1419 */ 1420 txq = sc->sc_ac2q[M_WME_GETAC(m)]; 1421 bf = mwl_gettxbuf(sc, txq); 1422 if (bf == NULL) { 1423 m_freem(m); 1424 ieee80211_free_node(ni); 1425#ifdef MWL_TX_NODROP 1426 sc->sc_stats.mst_tx_qstop++; 1427 /* XXX blocks other traffic */ 1428 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1429 break; 1430#else 1431 DPRINTF(sc, MWL_DEBUG_XMIT, 1432 "%s: tail drop on q %d\n", __func__, txq->qnum); 1433 sc->sc_stats.mst_tx_qdrop++; 1434 continue; 1435#endif /* MWL_TX_NODROP */ 1436 } 1437 1438 /* 1439 * Pass the frame to the h/w for transmission. 1440 */ 1441 if (mwl_tx_start(sc, ni, bf, m)) { 1442 ifp->if_oerrors++; 1443 mwl_puttxbuf_head(txq, bf); 1444 ieee80211_free_node(ni); 1445 continue; 1446 } 1447 nqueued++; 1448 if (nqueued >= mwl_txcoalesce) { 1449 /* 1450 * Poke the firmware to process queued frames; 1451 * see below about (lack of) locking. 1452 */ 1453 nqueued = 0; 1454 mwl_hal_txstart(sc->sc_mh, 0/*XXX*/); 1455 } 1456 } 1457 if (nqueued) { 1458 /* 1459 * NB: We don't need to lock against tx done because 1460 * this just prods the firmware to check the transmit 1461 * descriptors. The firmware will also start fetching 1462 * descriptors by itself if it notices new ones are 1463 * present when it goes to deliver a tx done interrupt 1464 * to the host. So if we race with tx done processing 1465 * it's ok. Delivering the kick here rather than in 1466 * mwl_tx_start is an optimization to avoid poking the 1467 * firmware for each packet. 1468 * 1469 * NB: the queue id isn't used so 0 is ok. 1470 */ 1471 mwl_hal_txstart(sc->sc_mh, 0/*XXX*/); 1472 } 1473} 1474 1475static int 1476mwl_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1477 const struct ieee80211_bpf_params *params) 1478{ 1479 struct ieee80211com *ic = ni->ni_ic; 1480 struct ifnet *ifp = ic->ic_ifp; 1481 struct mwl_softc *sc = ifp->if_softc; 1482 struct mwl_txbuf *bf; 1483 struct mwl_txq *txq; 1484 1485 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || sc->sc_invalid) { 1486 ieee80211_free_node(ni); 1487 m_freem(m); 1488 return ENETDOWN; 1489 } 1490 /* 1491 * Grab a TX buffer and associated resources. 1492 * Note that we depend on the classification 1493 * by the 802.11 layer to get to the right h/w 1494 * queue. Management frames must ALWAYS go on 1495 * queue 1 but we cannot just force that here 1496 * because we may receive non-mgt frames. 1497 */ 1498 txq = sc->sc_ac2q[M_WME_GETAC(m)]; 1499 bf = mwl_gettxbuf(sc, txq); 1500 if (bf == NULL) { 1501 sc->sc_stats.mst_tx_qstop++; 1502 /* XXX blocks other traffic */ 1503 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1504 ieee80211_free_node(ni); 1505 m_freem(m); 1506 return ENOBUFS; 1507 } 1508 /* 1509 * Pass the frame to the h/w for transmission. 1510 */ 1511 if (mwl_tx_start(sc, ni, bf, m)) { 1512 ifp->if_oerrors++; 1513 mwl_puttxbuf_head(txq, bf); 1514 1515 ieee80211_free_node(ni); 1516 return EIO; /* XXX */ 1517 } 1518 /* 1519 * NB: We don't need to lock against tx done because 1520 * this just prods the firmware to check the transmit 1521 * descriptors. The firmware will also start fetching 1522 * descriptors by itself if it notices new ones are 1523 * present when it goes to deliver a tx done interrupt 1524 * to the host. So if we race with tx done processing 1525 * it's ok. Delivering the kick here rather than in 1526 * mwl_tx_start is an optimization to avoid poking the 1527 * firmware for each packet. 1528 * 1529 * NB: the queue id isn't used so 0 is ok. 1530 */ 1531 mwl_hal_txstart(sc->sc_mh, 0/*XXX*/); 1532 return 0; 1533} 1534 1535static int 1536mwl_media_change(struct ifnet *ifp) 1537{ 1538 struct ieee80211vap *vap = ifp->if_softc; 1539 int error; 1540 1541 error = ieee80211_media_change(ifp); 1542 /* NB: only the fixed rate can change and that doesn't need a reset */ 1543 if (error == ENETRESET) { 1544 mwl_setrates(vap); 1545 error = 0; 1546 } 1547 return error; 1548} 1549 1550#ifdef MWL_DEBUG 1551static void 1552mwl_keyprint(struct mwl_softc *sc, const char *tag, 1553 const MWL_HAL_KEYVAL *hk, const uint8_t mac[IEEE80211_ADDR_LEN]) 1554{ 1555 static const char *ciphers[] = { 1556 "WEP", 1557 "TKIP", 1558 "AES-CCM", 1559 }; 1560 int i, n; 1561 1562 printf("%s: [%u] %-7s", tag, hk->keyIndex, ciphers[hk->keyTypeId]); 1563 for (i = 0, n = hk->keyLen; i < n; i++) 1564 printf(" %02x", hk->key.aes[i]); 1565 printf(" mac %s", ether_sprintf(mac)); 1566 if (hk->keyTypeId == KEY_TYPE_ID_TKIP) { 1567 printf(" %s", "rxmic"); 1568 for (i = 0; i < sizeof(hk->key.tkip.rxMic); i++) 1569 printf(" %02x", hk->key.tkip.rxMic[i]); 1570 printf(" txmic"); 1571 for (i = 0; i < sizeof(hk->key.tkip.txMic); i++) 1572 printf(" %02x", hk->key.tkip.txMic[i]); 1573 } 1574 printf(" flags 0x%x\n", hk->keyFlags); 1575} 1576#endif 1577 1578/* 1579 * Allocate a key cache slot for a unicast key. The 1580 * firmware handles key allocation and every station is 1581 * guaranteed key space so we are always successful. 1582 */ 1583static int 1584mwl_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 1585 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 1586{ 1587 struct mwl_softc *sc = vap->iv_ic->ic_ifp->if_softc; 1588 1589 if (k->wk_keyix != IEEE80211_KEYIX_NONE || 1590 (k->wk_flags & IEEE80211_KEY_GROUP)) { 1591 if (!(&vap->iv_nw_keys[0] <= k && 1592 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) { 1593 /* should not happen */ 1594 DPRINTF(sc, MWL_DEBUG_KEYCACHE, 1595 "%s: bogus group key\n", __func__); 1596 return 0; 1597 } 1598 /* give the caller what they requested */ 1599 *keyix = *rxkeyix = k - vap->iv_nw_keys; 1600 } else { 1601 /* 1602 * Firmware handles key allocation. 1603 */ 1604 *keyix = *rxkeyix = 0; 1605 } 1606 return 1; 1607} 1608 1609/* 1610 * Delete a key entry allocated by mwl_key_alloc. 1611 */ 1612static int 1613mwl_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 1614{ 1615 struct mwl_softc *sc = vap->iv_ic->ic_ifp->if_softc; 1616 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1617 MWL_HAL_KEYVAL hk; 1618 const uint8_t bcastaddr[IEEE80211_ADDR_LEN] = 1619 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 1620 1621 if (hvap == NULL) { 1622 if (vap->iv_opmode != IEEE80211_M_WDS) { 1623 /* XXX monitor mode? */ 1624 DPRINTF(sc, MWL_DEBUG_KEYCACHE, 1625 "%s: no hvap for opmode %d\n", __func__, 1626 vap->iv_opmode); 1627 return 0; 1628 } 1629 hvap = MWL_VAP(vap)->mv_ap_hvap; 1630 } 1631 1632 DPRINTF(sc, MWL_DEBUG_KEYCACHE, "%s: delete key %u\n", 1633 __func__, k->wk_keyix); 1634 1635 memset(&hk, 0, sizeof(hk)); 1636 hk.keyIndex = k->wk_keyix; 1637 switch (k->wk_cipher->ic_cipher) { 1638 case IEEE80211_CIPHER_WEP: 1639 hk.keyTypeId = KEY_TYPE_ID_WEP; 1640 break; 1641 case IEEE80211_CIPHER_TKIP: 1642 hk.keyTypeId = KEY_TYPE_ID_TKIP; 1643 break; 1644 case IEEE80211_CIPHER_AES_CCM: 1645 hk.keyTypeId = KEY_TYPE_ID_AES; 1646 break; 1647 default: 1648 /* XXX should not happen */ 1649 DPRINTF(sc, MWL_DEBUG_KEYCACHE, "%s: unknown cipher %d\n", 1650 __func__, k->wk_cipher->ic_cipher); 1651 return 0; 1652 } 1653 return (mwl_hal_keyreset(hvap, &hk, bcastaddr) == 0); /*XXX*/ 1654} 1655 1656static __inline int 1657addgroupflags(MWL_HAL_KEYVAL *hk, const struct ieee80211_key *k) 1658{ 1659 if (k->wk_flags & IEEE80211_KEY_GROUP) { 1660 if (k->wk_flags & IEEE80211_KEY_XMIT) 1661 hk->keyFlags |= KEY_FLAG_TXGROUPKEY; 1662 if (k->wk_flags & IEEE80211_KEY_RECV) 1663 hk->keyFlags |= KEY_FLAG_RXGROUPKEY; 1664 return 1; 1665 } else 1666 return 0; 1667} 1668 1669/* 1670 * Set the key cache contents for the specified key. Key cache 1671 * slot(s) must already have been allocated by mwl_key_alloc. 1672 */ 1673static int 1674mwl_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k, 1675 const uint8_t mac[IEEE80211_ADDR_LEN]) 1676{ 1677#define GRPXMIT (IEEE80211_KEY_XMIT | IEEE80211_KEY_GROUP) 1678/* NB: static wep keys are marked GROUP+tx/rx; GTK will be tx or rx */ 1679#define IEEE80211_IS_STATICKEY(k) \ 1680 (((k)->wk_flags & (GRPXMIT|IEEE80211_KEY_RECV)) == \ 1681 (GRPXMIT|IEEE80211_KEY_RECV)) 1682 struct mwl_softc *sc = vap->iv_ic->ic_ifp->if_softc; 1683 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1684 const struct ieee80211_cipher *cip = k->wk_cipher; 1685 const uint8_t *macaddr; 1686 MWL_HAL_KEYVAL hk; 1687 1688 KASSERT((k->wk_flags & IEEE80211_KEY_SWCRYPT) == 0, 1689 ("s/w crypto set?")); 1690 1691 if (hvap == NULL) { 1692 if (vap->iv_opmode != IEEE80211_M_WDS) { 1693 /* XXX monitor mode? */ 1694 DPRINTF(sc, MWL_DEBUG_KEYCACHE, 1695 "%s: no hvap for opmode %d\n", __func__, 1696 vap->iv_opmode); 1697 return 0; 1698 } 1699 hvap = MWL_VAP(vap)->mv_ap_hvap; 1700 } 1701 memset(&hk, 0, sizeof(hk)); 1702 hk.keyIndex = k->wk_keyix; 1703 switch (cip->ic_cipher) { 1704 case IEEE80211_CIPHER_WEP: 1705 hk.keyTypeId = KEY_TYPE_ID_WEP; 1706 hk.keyLen = k->wk_keylen; 1707 if (k->wk_keyix == vap->iv_def_txkey) 1708 hk.keyFlags = KEY_FLAG_WEP_TXKEY; 1709 if (!IEEE80211_IS_STATICKEY(k)) { 1710 /* NB: WEP is never used for the PTK */ 1711 (void) addgroupflags(&hk, k); 1712 } 1713 break; 1714 case IEEE80211_CIPHER_TKIP: 1715 hk.keyTypeId = KEY_TYPE_ID_TKIP; 1716 hk.key.tkip.tsc.high = (uint32_t)(k->wk_keytsc >> 16); 1717 hk.key.tkip.tsc.low = (uint16_t)k->wk_keytsc; 1718 hk.keyFlags = KEY_FLAG_TSC_VALID | KEY_FLAG_MICKEY_VALID; 1719 hk.keyLen = k->wk_keylen + IEEE80211_MICBUF_SIZE; 1720 if (!addgroupflags(&hk, k)) 1721 hk.keyFlags |= KEY_FLAG_PAIRWISE; 1722 break; 1723 case IEEE80211_CIPHER_AES_CCM: 1724 hk.keyTypeId = KEY_TYPE_ID_AES; 1725 hk.keyLen = k->wk_keylen; 1726 if (!addgroupflags(&hk, k)) 1727 hk.keyFlags |= KEY_FLAG_PAIRWISE; 1728 break; 1729 default: 1730 /* XXX should not happen */ 1731 DPRINTF(sc, MWL_DEBUG_KEYCACHE, "%s: unknown cipher %d\n", 1732 __func__, k->wk_cipher->ic_cipher); 1733 return 0; 1734 } 1735 /* 1736 * NB: tkip mic keys get copied here too; the layout 1737 * just happens to match that in ieee80211_key. 1738 */ 1739 memcpy(hk.key.aes, k->wk_key, hk.keyLen); 1740 1741 /* 1742 * Locate address of sta db entry for writing key; 1743 * the convention unfortunately is somewhat different 1744 * than how net80211, hostapd, and wpa_supplicant think. 1745 */ 1746 if (vap->iv_opmode == IEEE80211_M_STA) { 1747 /* 1748 * NB: keys plumbed before the sta reaches AUTH state 1749 * will be discarded or written to the wrong sta db 1750 * entry because iv_bss is meaningless. This is ok 1751 * (right now) because we handle deferred plumbing of 1752 * WEP keys when the sta reaches AUTH state. 1753 */ 1754 macaddr = vap->iv_bss->ni_bssid; 1755 if ((k->wk_flags & IEEE80211_KEY_GROUP) == 0) { 1756 /* XXX plumb to local sta db too for static key wep */ 1757 mwl_hal_keyset(hvap, &hk, vap->iv_myaddr); 1758 } 1759 } else if (vap->iv_opmode == IEEE80211_M_WDS && 1760 vap->iv_state != IEEE80211_S_RUN) { 1761 /* 1762 * Prior to RUN state a WDS vap will not it's BSS node 1763 * setup so we will plumb the key to the wrong mac 1764 * address (it'll be our local address). Workaround 1765 * this for the moment by grabbing the correct address. 1766 */ 1767 macaddr = vap->iv_des_bssid; 1768 } else if ((k->wk_flags & GRPXMIT) == GRPXMIT) 1769 macaddr = vap->iv_myaddr; 1770 else 1771 macaddr = mac; 1772 KEYPRINTF(sc, &hk, macaddr); 1773 return (mwl_hal_keyset(hvap, &hk, macaddr) == 0); 1774#undef IEEE80211_IS_STATICKEY 1775#undef GRPXMIT 1776} 1777 1778/* unaligned little endian access */ 1779#define LE_READ_2(p) \ 1780 ((uint16_t) \ 1781 ((((const uint8_t *)(p))[0] ) | \ 1782 (((const uint8_t *)(p))[1] << 8))) 1783#define LE_READ_4(p) \ 1784 ((uint32_t) \ 1785 ((((const uint8_t *)(p))[0] ) | \ 1786 (((const uint8_t *)(p))[1] << 8) | \ 1787 (((const uint8_t *)(p))[2] << 16) | \ 1788 (((const uint8_t *)(p))[3] << 24))) 1789 1790/* 1791 * Set the multicast filter contents into the hardware. 1792 * XXX f/w has no support; just defer to the os. 1793 */ 1794static void 1795mwl_setmcastfilter(struct mwl_softc *sc) 1796{ 1797 struct ifnet *ifp = sc->sc_ifp; 1798#if 0 1799 struct ether_multi *enm; 1800 struct ether_multistep estep; 1801 uint8_t macs[IEEE80211_ADDR_LEN*MWL_HAL_MCAST_MAX];/* XXX stack use */ 1802 uint8_t *mp; 1803 int nmc; 1804 1805 mp = macs; 1806 nmc = 0; 1807 ETHER_FIRST_MULTI(estep, &sc->sc_ec, enm); 1808 while (enm != NULL) { 1809 /* XXX Punt on ranges. */ 1810 if (nmc == MWL_HAL_MCAST_MAX || 1811 !IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi)) { 1812 ifp->if_flags |= IFF_ALLMULTI; 1813 return; 1814 } 1815 IEEE80211_ADDR_COPY(mp, enm->enm_addrlo); 1816 mp += IEEE80211_ADDR_LEN, nmc++; 1817 ETHER_NEXT_MULTI(estep, enm); 1818 } 1819 ifp->if_flags &= ~IFF_ALLMULTI; 1820 mwl_hal_setmcast(sc->sc_mh, nmc, macs); 1821#else 1822 /* XXX no mcast filter support; we get everything */ 1823 ifp->if_flags |= IFF_ALLMULTI; 1824#endif 1825} 1826 1827static int 1828mwl_mode_init(struct mwl_softc *sc) 1829{ 1830 struct ifnet *ifp = sc->sc_ifp; 1831 struct ieee80211com *ic = ifp->if_l2com; 1832 struct mwl_hal *mh = sc->sc_mh; 1833 1834 /* 1835 * NB: Ignore promisc in hostap mode; it's set by the 1836 * bridge. This is wrong but we have no way to 1837 * identify internal requests (from the bridge) 1838 * versus external requests such as for tcpdump. 1839 */ 1840 mwl_hal_setpromisc(mh, (ifp->if_flags & IFF_PROMISC) && 1841 ic->ic_opmode != IEEE80211_M_HOSTAP); 1842 mwl_setmcastfilter(sc); 1843 1844 return 0; 1845} 1846 1847/* 1848 * Callback from the 802.11 layer after a multicast state change. 1849 */ 1850static void 1851mwl_update_mcast(struct ifnet *ifp) 1852{ 1853 struct mwl_softc *sc = ifp->if_softc; 1854 1855 mwl_setmcastfilter(sc); 1856} 1857 1858/* 1859 * Callback from the 802.11 layer after a promiscuous mode change. 1860 * Note this interface does not check the operating mode as this 1861 * is an internal callback and we are expected to honor the current 1862 * state (e.g. this is used for setting the interface in promiscuous 1863 * mode when operating in hostap mode to do ACS). 1864 */ 1865static void 1866mwl_update_promisc(struct ifnet *ifp) 1867{ 1868 struct mwl_softc *sc = ifp->if_softc; 1869 1870 mwl_hal_setpromisc(sc->sc_mh, (ifp->if_flags & IFF_PROMISC) != 0); 1871} 1872 1873/* 1874 * Callback from the 802.11 layer to update the slot time 1875 * based on the current setting. We use it to notify the 1876 * firmware of ERP changes and the f/w takes care of things 1877 * like slot time and preamble. 1878 */ 1879static void 1880mwl_updateslot(struct ifnet *ifp) 1881{ 1882 struct mwl_softc *sc = ifp->if_softc; 1883 struct ieee80211com *ic = ifp->if_l2com; 1884 struct mwl_hal *mh = sc->sc_mh; 1885 int prot; 1886 1887 /* NB: can be called early; suppress needless cmds */ 1888 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1889 return; 1890 1891 /* 1892 * Calculate the ERP flags. The firwmare will use 1893 * this to carry out the appropriate measures. 1894 */ 1895 prot = 0; 1896 if (IEEE80211_IS_CHAN_ANYG(ic->ic_curchan)) { 1897 if ((ic->ic_flags & IEEE80211_F_SHSLOT) == 0) 1898 prot |= IEEE80211_ERP_NON_ERP_PRESENT; 1899 if (ic->ic_flags & IEEE80211_F_USEPROT) 1900 prot |= IEEE80211_ERP_USE_PROTECTION; 1901 if (ic->ic_flags & IEEE80211_F_USEBARKER) 1902 prot |= IEEE80211_ERP_LONG_PREAMBLE; 1903 } 1904 1905 DPRINTF(sc, MWL_DEBUG_RESET, 1906 "%s: chan %u MHz/flags 0x%x %s slot, (prot 0x%x ic_flags 0x%x)\n", 1907 __func__, ic->ic_curchan->ic_freq, ic->ic_curchan->ic_flags, 1908 ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long", prot, 1909 ic->ic_flags); 1910 1911 mwl_hal_setgprot(mh, prot); 1912} 1913 1914/* 1915 * Setup the beacon frame. 1916 */ 1917static int 1918mwl_beacon_setup(struct ieee80211vap *vap) 1919{ 1920 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1921 struct ieee80211_node *ni = vap->iv_bss; 1922 struct ieee80211_beacon_offsets bo; 1923 struct mbuf *m; 1924 1925 m = ieee80211_beacon_alloc(ni, &bo); 1926 if (m == NULL) 1927 return ENOBUFS; 1928 mwl_hal_setbeacon(hvap, mtod(m, const void *), m->m_len); 1929 m_free(m); 1930 1931 return 0; 1932} 1933 1934/* 1935 * Update the beacon frame in response to a change. 1936 */ 1937static void 1938mwl_beacon_update(struct ieee80211vap *vap, int item) 1939{ 1940 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 1941 struct ieee80211com *ic = vap->iv_ic; 1942 1943 KASSERT(hvap != NULL, ("no beacon")); 1944 switch (item) { 1945 case IEEE80211_BEACON_ERP: 1946 mwl_updateslot(ic->ic_ifp); 1947 break; 1948 case IEEE80211_BEACON_HTINFO: 1949 mwl_hal_setnprotmode(hvap, 1950 MS(ic->ic_curhtprotmode, IEEE80211_HTINFO_OPMODE)); 1951 break; 1952 case IEEE80211_BEACON_CAPS: 1953 case IEEE80211_BEACON_WME: 1954 case IEEE80211_BEACON_APPIE: 1955 case IEEE80211_BEACON_CSA: 1956 break; 1957 case IEEE80211_BEACON_TIM: 1958 /* NB: firmware always forms TIM */ 1959 return; 1960 } 1961 /* XXX retain beacon frame and update */ 1962 mwl_beacon_setup(vap); 1963} 1964 1965static void 1966mwl_load_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1967{ 1968 bus_addr_t *paddr = (bus_addr_t*) arg; 1969 KASSERT(error == 0, ("error %u on bus_dma callback", error)); 1970 *paddr = segs->ds_addr; 1971} 1972 1973#ifdef MWL_HOST_PS_SUPPORT 1974/* 1975 * Handle power save station occupancy changes. 1976 */ 1977static void 1978mwl_update_ps(struct ieee80211vap *vap, int nsta) 1979{ 1980 struct mwl_vap *mvp = MWL_VAP(vap); 1981 1982 if (nsta == 0 || mvp->mv_last_ps_sta == 0) 1983 mwl_hal_setpowersave_bss(mvp->mv_hvap, nsta); 1984 mvp->mv_last_ps_sta = nsta; 1985} 1986 1987/* 1988 * Handle associated station power save state changes. 1989 */ 1990static int 1991mwl_set_tim(struct ieee80211_node *ni, int set) 1992{ 1993 struct ieee80211vap *vap = ni->ni_vap; 1994 struct mwl_vap *mvp = MWL_VAP(vap); 1995 1996 if (mvp->mv_set_tim(ni, set)) { /* NB: state change */ 1997 mwl_hal_setpowersave_sta(mvp->mv_hvap, 1998 IEEE80211_AID(ni->ni_associd), set); 1999 return 1; 2000 } else 2001 return 0; 2002} 2003#endif /* MWL_HOST_PS_SUPPORT */ 2004 2005static int 2006mwl_desc_setup(struct mwl_softc *sc, const char *name, 2007 struct mwl_descdma *dd, 2008 int nbuf, size_t bufsize, int ndesc, size_t descsize) 2009{ 2010 struct ifnet *ifp = sc->sc_ifp; 2011 uint8_t *ds; 2012 int error; 2013 2014 DPRINTF(sc, MWL_DEBUG_RESET, 2015 "%s: %s DMA: %u bufs (%ju) %u desc/buf (%ju)\n", 2016 __func__, name, nbuf, (uintmax_t) bufsize, 2017 ndesc, (uintmax_t) descsize); 2018 2019 dd->dd_name = name; 2020 dd->dd_desc_len = nbuf * ndesc * descsize; 2021 2022 /* 2023 * Setup DMA descriptor area. 2024 */ 2025 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), /* parent */ 2026 PAGE_SIZE, 0, /* alignment, bounds */ 2027 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 2028 BUS_SPACE_MAXADDR, /* highaddr */ 2029 NULL, NULL, /* filter, filterarg */ 2030 dd->dd_desc_len, /* maxsize */ 2031 1, /* nsegments */ 2032 dd->dd_desc_len, /* maxsegsize */ 2033 BUS_DMA_ALLOCNOW, /* flags */ 2034 NULL, /* lockfunc */ 2035 NULL, /* lockarg */ 2036 &dd->dd_dmat); 2037 if (error != 0) { 2038 if_printf(ifp, "cannot allocate %s DMA tag\n", dd->dd_name); 2039 return error; 2040 } 2041 2042 /* allocate descriptors */ 2043 error = bus_dmamap_create(dd->dd_dmat, BUS_DMA_NOWAIT, &dd->dd_dmamap); 2044 if (error != 0) { 2045 if_printf(ifp, "unable to create dmamap for %s descriptors, " 2046 "error %u\n", dd->dd_name, error); 2047 goto fail0; 2048 } 2049 2050 error = bus_dmamem_alloc(dd->dd_dmat, (void**) &dd->dd_desc, 2051 BUS_DMA_NOWAIT | BUS_DMA_COHERENT, 2052 &dd->dd_dmamap); 2053 if (error != 0) { 2054 if_printf(ifp, "unable to alloc memory for %u %s descriptors, " 2055 "error %u\n", nbuf * ndesc, dd->dd_name, error); 2056 goto fail1; 2057 } 2058 2059 error = bus_dmamap_load(dd->dd_dmat, dd->dd_dmamap, 2060 dd->dd_desc, dd->dd_desc_len, 2061 mwl_load_cb, &dd->dd_desc_paddr, 2062 BUS_DMA_NOWAIT); 2063 if (error != 0) { 2064 if_printf(ifp, "unable to map %s descriptors, error %u\n", 2065 dd->dd_name, error); 2066 goto fail2; 2067 } 2068 2069 ds = dd->dd_desc; 2070 memset(ds, 0, dd->dd_desc_len); 2071 DPRINTF(sc, MWL_DEBUG_RESET, 2072 "%s: %s DMA map: %p (%lu) -> 0x%jx (%lu)\n", 2073 __func__, dd->dd_name, ds, (u_long) dd->dd_desc_len, 2074 (uintmax_t) dd->dd_desc_paddr, /*XXX*/ (u_long) dd->dd_desc_len); 2075 2076 return 0; 2077fail2: 2078 bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap); 2079fail1: 2080 bus_dmamap_destroy(dd->dd_dmat, dd->dd_dmamap); 2081fail0: 2082 bus_dma_tag_destroy(dd->dd_dmat); 2083 memset(dd, 0, sizeof(*dd)); 2084 return error; 2085#undef DS2PHYS 2086} 2087 2088static void 2089mwl_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 */ 2106static void 2107mwl_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 2122static int 2123mwl_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 2162static void 2163mwl_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 2185static int 2186mwl_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 2292static void 2293mwl_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 2313static int 2314mwl_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 2334static void 2335mwl_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 2344static struct ieee80211_node * 2345mwl_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 2361static void 2362mwl_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 */ 2400static void 2401mwl_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 */ 2456static void 2457mwl_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 2489static void 2490mwl_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 */ 2516static void 2517mwl_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 2550static __inline void * 2551mwl_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 2575static __inline void 2576mwl_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 2588static int 2589mwl_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 2627static int 2628mwl_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 2646struct 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 */ 2659static __inline int 2660mwl_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 2677static void 2678mwl_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 */ 2701static __inline int 2702cvtrssi(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 2710static void 2711mwl_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_PROTECTED) 2890 m->m_flags |= M_WEP; 2891#ifdef MWL_HOST_PS_SUPPORT 2892 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED; 2893#else 2894 wh->i_fc[1] &= ~(IEEE80211_FC1_PROTECTED | 2895 IEEE80211_FC1_PWR_MGT); 2896#endif 2897 2898 if (ieee80211_radiotap_active(ic)) { 2899 struct mwl_rx_radiotap_header *tap = &sc->sc_rx_th; 2900 2901 tap->wr_flags = 0; 2902 tap->wr_rate = ds->Rate; 2903 tap->wr_antsignal = rssi + nf; 2904 tap->wr_antnoise = nf; 2905 } 2906 if (IFF_DUMPPKTS_RECV(sc, wh)) { 2907 ieee80211_dump_pkt(ic, mtod(m, caddr_t), 2908 len, ds->Rate, rssi); 2909 } 2910 ifp->if_ipackets++; 2911 2912 /* dispatch */ 2913 ni = ieee80211_find_rxnode(ic, 2914 (const struct ieee80211_frame_min *) wh); 2915 if (ni != NULL) { 2916 mn = MWL_NODE(ni); 2917#ifdef MWL_ANT_INFO_SUPPORT 2918 mn->mn_ai.rssi_a = ds->ai.rssi_a; 2919 mn->mn_ai.rssi_b = ds->ai.rssi_b; 2920 mn->mn_ai.rssi_c = ds->ai.rssi_c; 2921 mn->mn_ai.rsvd1 = rssi; 2922#endif 2923 /* tag AMPDU aggregates for reorder processing */ 2924 if (ni->ni_flags & IEEE80211_NODE_HT) 2925 m->m_flags |= M_AMPDU; 2926 (void) ieee80211_input(ni, m, rssi, nf); 2927 ieee80211_free_node(ni); 2928 } else 2929 (void) ieee80211_input_all(ic, m, rssi, nf); 2930rx_next: 2931 /* NB: ignore ENOMEM so we process more descriptors */ 2932 (void) mwl_rxbuf_init(sc, bf); 2933 bf = STAILQ_NEXT(bf, bf_list); 2934 } 2935rx_stop: 2936 sc->sc_rxnext = bf; 2937 2938 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 2939 !IFQ_IS_EMPTY(&ifp->if_snd)) { 2940 /* NB: kick fw; the tx thread may have been preempted */ 2941 mwl_hal_txstart(sc->sc_mh, 0); 2942 mwl_start(ifp); 2943 } 2944#undef IEEE80211_DIR_DSTODS 2945} 2946 2947static void 2948mwl_txq_init(struct mwl_softc *sc, struct mwl_txq *txq, int qnum) 2949{ 2950 struct mwl_txbuf *bf, *bn; 2951 struct mwl_txdesc *ds; 2952 2953 MWL_TXQ_LOCK_INIT(sc, txq); 2954 txq->qnum = qnum; 2955 txq->txpri = 0; /* XXX */ 2956#if 0 2957 /* NB: q setup by mwl_txdma_setup XXX */ 2958 STAILQ_INIT(&txq->free); 2959#endif 2960 STAILQ_FOREACH(bf, &txq->free, bf_list) { 2961 bf->bf_txq = txq; 2962 2963 ds = bf->bf_desc; 2964 bn = STAILQ_NEXT(bf, bf_list); 2965 if (bn == NULL) 2966 bn = STAILQ_FIRST(&txq->free); 2967 ds->pPhysNext = htole32(bn->bf_daddr); 2968 } 2969 STAILQ_INIT(&txq->active); 2970} 2971 2972/* 2973 * Setup a hardware data transmit queue for the specified 2974 * access control. We record the mapping from ac's 2975 * to h/w queues for use by mwl_tx_start. 2976 */ 2977static int 2978mwl_tx_setup(struct mwl_softc *sc, int ac, int mvtype) 2979{ 2980#define N(a) (sizeof(a)/sizeof(a[0])) 2981 struct mwl_txq *txq; 2982 2983 if (ac >= N(sc->sc_ac2q)) { 2984 device_printf(sc->sc_dev, "AC %u out of range, max %zu!\n", 2985 ac, N(sc->sc_ac2q)); 2986 return 0; 2987 } 2988 if (mvtype >= MWL_NUM_TX_QUEUES) { 2989 device_printf(sc->sc_dev, "mvtype %u out of range, max %u!\n", 2990 mvtype, MWL_NUM_TX_QUEUES); 2991 return 0; 2992 } 2993 txq = &sc->sc_txq[mvtype]; 2994 mwl_txq_init(sc, txq, mvtype); 2995 sc->sc_ac2q[ac] = txq; 2996 return 1; 2997#undef N 2998} 2999 3000/* 3001 * Update WME parameters for a transmit queue. 3002 */ 3003static int 3004mwl_txq_update(struct mwl_softc *sc, int ac) 3005{ 3006#define MWL_EXPONENT_TO_VALUE(v) ((1<<v)-1) 3007 struct ifnet *ifp = sc->sc_ifp; 3008 struct ieee80211com *ic = ifp->if_l2com; 3009 struct mwl_txq *txq = sc->sc_ac2q[ac]; 3010 struct wmeParams *wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 3011 struct mwl_hal *mh = sc->sc_mh; 3012 int aifs, cwmin, cwmax, txoplim; 3013 3014 aifs = wmep->wmep_aifsn; 3015 /* XXX in sta mode need to pass log values for cwmin/max */ 3016 cwmin = MWL_EXPONENT_TO_VALUE(wmep->wmep_logcwmin); 3017 cwmax = MWL_EXPONENT_TO_VALUE(wmep->wmep_logcwmax); 3018 txoplim = wmep->wmep_txopLimit; /* NB: units of 32us */ 3019 3020 if (mwl_hal_setedcaparams(mh, txq->qnum, cwmin, cwmax, aifs, txoplim)) { 3021 device_printf(sc->sc_dev, "unable to update hardware queue " 3022 "parameters for %s traffic!\n", 3023 ieee80211_wme_acnames[ac]); 3024 return 0; 3025 } 3026 return 1; 3027#undef MWL_EXPONENT_TO_VALUE 3028} 3029 3030/* 3031 * Callback from the 802.11 layer to update WME parameters. 3032 */ 3033static int 3034mwl_wme_update(struct ieee80211com *ic) 3035{ 3036 struct mwl_softc *sc = ic->ic_ifp->if_softc; 3037 3038 return !mwl_txq_update(sc, WME_AC_BE) || 3039 !mwl_txq_update(sc, WME_AC_BK) || 3040 !mwl_txq_update(sc, WME_AC_VI) || 3041 !mwl_txq_update(sc, WME_AC_VO) ? EIO : 0; 3042} 3043 3044/* 3045 * Reclaim resources for a setup queue. 3046 */ 3047static void 3048mwl_tx_cleanupq(struct mwl_softc *sc, struct mwl_txq *txq) 3049{ 3050 /* XXX hal work? */ 3051 MWL_TXQ_LOCK_DESTROY(txq); 3052} 3053 3054/* 3055 * Reclaim all tx queue resources. 3056 */ 3057static void 3058mwl_tx_cleanup(struct mwl_softc *sc) 3059{ 3060 int i; 3061 3062 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 3063 mwl_tx_cleanupq(sc, &sc->sc_txq[i]); 3064} 3065 3066static int 3067mwl_tx_dmasetup(struct mwl_softc *sc, struct mwl_txbuf *bf, struct mbuf *m0) 3068{ 3069 struct mbuf *m; 3070 int error; 3071 3072 /* 3073 * Load the DMA map so any coalescing is done. This 3074 * also calculates the number of descriptors we need. 3075 */ 3076 error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m0, 3077 bf->bf_segs, &bf->bf_nseg, 3078 BUS_DMA_NOWAIT); 3079 if (error == EFBIG) { 3080 /* XXX packet requires too many descriptors */ 3081 bf->bf_nseg = MWL_TXDESC+1; 3082 } else if (error != 0) { 3083 sc->sc_stats.mst_tx_busdma++; 3084 m_freem(m0); 3085 return error; 3086 } 3087 /* 3088 * Discard null packets and check for packets that 3089 * require too many TX descriptors. We try to convert 3090 * the latter to a cluster. 3091 */ 3092 if (error == EFBIG) { /* too many desc's, linearize */ 3093 sc->sc_stats.mst_tx_linear++; 3094#if MWL_TXDESC > 1 3095 m = m_collapse(m0, M_NOWAIT, MWL_TXDESC); 3096#else 3097 m = m_defrag(m0, M_NOWAIT); 3098#endif 3099 if (m == NULL) { 3100 m_freem(m0); 3101 sc->sc_stats.mst_tx_nombuf++; 3102 return ENOMEM; 3103 } 3104 m0 = m; 3105 error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m0, 3106 bf->bf_segs, &bf->bf_nseg, 3107 BUS_DMA_NOWAIT); 3108 if (error != 0) { 3109 sc->sc_stats.mst_tx_busdma++; 3110 m_freem(m0); 3111 return error; 3112 } 3113 KASSERT(bf->bf_nseg <= MWL_TXDESC, 3114 ("too many segments after defrag; nseg %u", bf->bf_nseg)); 3115 } else if (bf->bf_nseg == 0) { /* null packet, discard */ 3116 sc->sc_stats.mst_tx_nodata++; 3117 m_freem(m0); 3118 return EIO; 3119 } 3120 DPRINTF(sc, MWL_DEBUG_XMIT, "%s: m %p len %u\n", 3121 __func__, m0, m0->m_pkthdr.len); 3122 bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE); 3123 bf->bf_m = m0; 3124 3125 return 0; 3126} 3127 3128static __inline int 3129mwl_cvtlegacyrate(int rate) 3130{ 3131 switch (rate) { 3132 case 2: return 0; 3133 case 4: return 1; 3134 case 11: return 2; 3135 case 22: return 3; 3136 case 44: return 4; 3137 case 12: return 5; 3138 case 18: return 6; 3139 case 24: return 7; 3140 case 36: return 8; 3141 case 48: return 9; 3142 case 72: return 10; 3143 case 96: return 11; 3144 case 108:return 12; 3145 } 3146 return 0; 3147} 3148 3149/* 3150 * Calculate fixed tx rate information per client state; 3151 * this value is suitable for writing to the Format field 3152 * of a tx descriptor. 3153 */ 3154static uint16_t 3155mwl_calcformat(uint8_t rate, const struct ieee80211_node *ni) 3156{ 3157 uint16_t fmt; 3158 3159 fmt = SM(3, EAGLE_TXD_ANTENNA) 3160 | (IEEE80211_IS_CHAN_HT40D(ni->ni_chan) ? 3161 EAGLE_TXD_EXTCHAN_LO : EAGLE_TXD_EXTCHAN_HI); 3162 if (rate & IEEE80211_RATE_MCS) { /* HT MCS */ 3163 fmt |= EAGLE_TXD_FORMAT_HT 3164 /* NB: 0x80 implicitly stripped from ucastrate */ 3165 | SM(rate, EAGLE_TXD_RATE); 3166 /* XXX short/long GI may be wrong; re-check */ 3167 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 3168 fmt |= EAGLE_TXD_CHW_40 3169 | (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40 ? 3170 EAGLE_TXD_GI_SHORT : EAGLE_TXD_GI_LONG); 3171 } else { 3172 fmt |= EAGLE_TXD_CHW_20 3173 | (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20 ? 3174 EAGLE_TXD_GI_SHORT : EAGLE_TXD_GI_LONG); 3175 } 3176 } else { /* legacy rate */ 3177 fmt |= EAGLE_TXD_FORMAT_LEGACY 3178 | SM(mwl_cvtlegacyrate(rate), EAGLE_TXD_RATE) 3179 | EAGLE_TXD_CHW_20 3180 /* XXX iv_flags & IEEE80211_F_SHPREAMBLE? */ 3181 | (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_PREAMBLE ? 3182 EAGLE_TXD_PREAMBLE_SHORT : EAGLE_TXD_PREAMBLE_LONG); 3183 } 3184 return fmt; 3185} 3186 3187static int 3188mwl_tx_start(struct mwl_softc *sc, struct ieee80211_node *ni, struct mwl_txbuf *bf, 3189 struct mbuf *m0) 3190{ 3191#define IEEE80211_DIR_DSTODS(wh) \ 3192 ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS) 3193 struct ifnet *ifp = sc->sc_ifp; 3194 struct ieee80211com *ic = ifp->if_l2com; 3195 struct ieee80211vap *vap = ni->ni_vap; 3196 int error, iswep, ismcast; 3197 int hdrlen, copyhdrlen, pktlen; 3198 struct mwl_txdesc *ds; 3199 struct mwl_txq *txq; 3200 struct ieee80211_frame *wh; 3201 struct mwltxrec *tr; 3202 struct mwl_node *mn; 3203 uint16_t qos; 3204#if MWL_TXDESC > 1 3205 int i; 3206#endif 3207 3208 wh = mtod(m0, struct ieee80211_frame *); 3209 iswep = wh->i_fc[1] & IEEE80211_FC1_PROTECTED; 3210 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 3211 hdrlen = ieee80211_anyhdrsize(wh); 3212 copyhdrlen = hdrlen; 3213 pktlen = m0->m_pkthdr.len; 3214 if (IEEE80211_QOS_HAS_SEQ(wh)) { 3215 if (IEEE80211_DIR_DSTODS(wh)) { 3216 qos = *(uint16_t *) 3217 (((struct ieee80211_qosframe_addr4 *) wh)->i_qos); 3218 copyhdrlen -= sizeof(qos); 3219 } else 3220 qos = *(uint16_t *) 3221 (((struct ieee80211_qosframe *) wh)->i_qos); 3222 } else 3223 qos = 0; 3224 3225 if (iswep) { 3226 const struct ieee80211_cipher *cip; 3227 struct ieee80211_key *k; 3228 3229 /* 3230 * Construct the 802.11 header+trailer for an encrypted 3231 * frame. The only reason this can fail is because of an 3232 * unknown or unsupported cipher/key type. 3233 * 3234 * NB: we do this even though the firmware will ignore 3235 * what we've done for WEP and TKIP as we need the 3236 * ExtIV filled in for CCMP and this also adjusts 3237 * the headers which simplifies our work below. 3238 */ 3239 k = ieee80211_crypto_encap(ni, m0); 3240 if (k == NULL) { 3241 /* 3242 * This can happen when the key is yanked after the 3243 * frame was queued. Just discard the frame; the 3244 * 802.11 layer counts failures and provides 3245 * debugging/diagnostics. 3246 */ 3247 m_freem(m0); 3248 return EIO; 3249 } 3250 /* 3251 * Adjust the packet length for the crypto additions 3252 * done during encap and any other bits that the f/w 3253 * will add later on. 3254 */ 3255 cip = k->wk_cipher; 3256 pktlen += cip->ic_header + cip->ic_miclen + cip->ic_trailer; 3257 3258 /* packet header may have moved, reset our local pointer */ 3259 wh = mtod(m0, struct ieee80211_frame *); 3260 } 3261 3262 if (ieee80211_radiotap_active_vap(vap)) { 3263 sc->sc_tx_th.wt_flags = 0; /* XXX */ 3264 if (iswep) 3265 sc->sc_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3266#if 0 3267 sc->sc_tx_th.wt_rate = ds->DataRate; 3268#endif 3269 sc->sc_tx_th.wt_txpower = ni->ni_txpower; 3270 sc->sc_tx_th.wt_antenna = sc->sc_txantenna; 3271 3272 ieee80211_radiotap_tx(vap, m0); 3273 } 3274 /* 3275 * Copy up/down the 802.11 header; the firmware requires 3276 * we present a 2-byte payload length followed by a 3277 * 4-address header (w/o QoS), followed (optionally) by 3278 * any WEP/ExtIV header (but only filled in for CCMP). 3279 * We are assured the mbuf has sufficient headroom to 3280 * prepend in-place by the setup of ic_headroom in 3281 * mwl_attach. 3282 */ 3283 if (hdrlen < sizeof(struct mwltxrec)) { 3284 const int space = sizeof(struct mwltxrec) - hdrlen; 3285 if (M_LEADINGSPACE(m0) < space) { 3286 /* NB: should never happen */ 3287 device_printf(sc->sc_dev, 3288 "not enough headroom, need %d found %zd, " 3289 "m_flags 0x%x m_len %d\n", 3290 space, M_LEADINGSPACE(m0), m0->m_flags, m0->m_len); 3291 ieee80211_dump_pkt(ic, 3292 mtod(m0, const uint8_t *), m0->m_len, 0, -1); 3293 m_freem(m0); 3294 sc->sc_stats.mst_tx_noheadroom++; 3295 return EIO; 3296 } 3297 M_PREPEND(m0, space, M_NOWAIT); 3298 } 3299 tr = mtod(m0, struct mwltxrec *); 3300 if (wh != (struct ieee80211_frame *) &tr->wh) 3301 ovbcopy(wh, &tr->wh, hdrlen); 3302 /* 3303 * Note: the "firmware length" is actually the length 3304 * of the fully formed "802.11 payload". That is, it's 3305 * everything except for the 802.11 header. In particular 3306 * this includes all crypto material including the MIC! 3307 */ 3308 tr->fwlen = htole16(pktlen - hdrlen); 3309 3310 /* 3311 * Load the DMA map so any coalescing is done. This 3312 * also calculates the number of descriptors we need. 3313 */ 3314 error = mwl_tx_dmasetup(sc, bf, m0); 3315 if (error != 0) { 3316 /* NB: stat collected in mwl_tx_dmasetup */ 3317 DPRINTF(sc, MWL_DEBUG_XMIT, 3318 "%s: unable to setup dma\n", __func__); 3319 return error; 3320 } 3321 bf->bf_node = ni; /* NB: held reference */ 3322 m0 = bf->bf_m; /* NB: may have changed */ 3323 tr = mtod(m0, struct mwltxrec *); 3324 wh = (struct ieee80211_frame *)&tr->wh; 3325 3326 /* 3327 * Formulate tx descriptor. 3328 */ 3329 ds = bf->bf_desc; 3330 txq = bf->bf_txq; 3331 3332 ds->QosCtrl = qos; /* NB: already little-endian */ 3333#if MWL_TXDESC == 1 3334 /* 3335 * NB: multiframes should be zero because the descriptors 3336 * are initialized to zero. This should handle the case 3337 * where the driver is built with MWL_TXDESC=1 but we are 3338 * using firmware with multi-segment support. 3339 */ 3340 ds->PktPtr = htole32(bf->bf_segs[0].ds_addr); 3341 ds->PktLen = htole16(bf->bf_segs[0].ds_len); 3342#else 3343 ds->multiframes = htole32(bf->bf_nseg); 3344 ds->PktLen = htole16(m0->m_pkthdr.len); 3345 for (i = 0; i < bf->bf_nseg; i++) { 3346 ds->PktPtrArray[i] = htole32(bf->bf_segs[i].ds_addr); 3347 ds->PktLenArray[i] = htole16(bf->bf_segs[i].ds_len); 3348 } 3349#endif 3350 /* NB: pPhysNext, DataRate, and SapPktInfo setup once, don't touch */ 3351 ds->Format = 0; 3352 ds->pad = 0; 3353 ds->ack_wcb_addr = 0; 3354 3355 mn = MWL_NODE(ni); 3356 /* 3357 * Select transmit rate. 3358 */ 3359 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 3360 case IEEE80211_FC0_TYPE_MGT: 3361 sc->sc_stats.mst_tx_mgmt++; 3362 /* fall thru... */ 3363 case IEEE80211_FC0_TYPE_CTL: 3364 /* NB: assign to BE q to avoid bursting */ 3365 ds->TxPriority = MWL_WME_AC_BE; 3366 break; 3367 case IEEE80211_FC0_TYPE_DATA: 3368 if (!ismcast) { 3369 const struct ieee80211_txparam *tp = ni->ni_txparms; 3370 /* 3371 * EAPOL frames get forced to a fixed rate and w/o 3372 * aggregation; otherwise check for any fixed rate 3373 * for the client (may depend on association state). 3374 */ 3375 if (m0->m_flags & M_EAPOL) { 3376 const struct mwl_vap *mvp = MWL_VAP_CONST(vap); 3377 ds->Format = mvp->mv_eapolformat; 3378 ds->pad = htole16( 3379 EAGLE_TXD_FIXED_RATE | EAGLE_TXD_DONT_AGGR); 3380 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) { 3381 /* XXX pre-calculate per node */ 3382 ds->Format = htole16( 3383 mwl_calcformat(tp->ucastrate, ni)); 3384 ds->pad = htole16(EAGLE_TXD_FIXED_RATE); 3385 } 3386 /* NB: EAPOL frames will never have qos set */ 3387 if (qos == 0) 3388 ds->TxPriority = txq->qnum; 3389#if MWL_MAXBA > 3 3390 else if (mwl_bastream_match(&mn->mn_ba[3], qos)) 3391 ds->TxPriority = mn->mn_ba[3].txq; 3392#endif 3393#if MWL_MAXBA > 2 3394 else if (mwl_bastream_match(&mn->mn_ba[2], qos)) 3395 ds->TxPriority = mn->mn_ba[2].txq; 3396#endif 3397#if MWL_MAXBA > 1 3398 else if (mwl_bastream_match(&mn->mn_ba[1], qos)) 3399 ds->TxPriority = mn->mn_ba[1].txq; 3400#endif 3401#if MWL_MAXBA > 0 3402 else if (mwl_bastream_match(&mn->mn_ba[0], qos)) 3403 ds->TxPriority = mn->mn_ba[0].txq; 3404#endif 3405 else 3406 ds->TxPriority = txq->qnum; 3407 } else 3408 ds->TxPriority = txq->qnum; 3409 break; 3410 default: 3411 if_printf(ifp, "bogus frame type 0x%x (%s)\n", 3412 wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK, __func__); 3413 sc->sc_stats.mst_tx_badframetype++; 3414 m_freem(m0); 3415 return EIO; 3416 } 3417 3418 if (IFF_DUMPPKTS_XMIT(sc)) 3419 ieee80211_dump_pkt(ic, 3420 mtod(m0, const uint8_t *)+sizeof(uint16_t), 3421 m0->m_len - sizeof(uint16_t), ds->DataRate, -1); 3422 3423 MWL_TXQ_LOCK(txq); 3424 ds->Status = htole32(EAGLE_TXD_STATUS_FW_OWNED); 3425 STAILQ_INSERT_TAIL(&txq->active, bf, bf_list); 3426 MWL_TXDESC_SYNC(txq, ds, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 3427 3428 ifp->if_opackets++; 3429 sc->sc_tx_timer = 5; 3430 MWL_TXQ_UNLOCK(txq); 3431 3432 return 0; 3433#undef IEEE80211_DIR_DSTODS 3434} 3435 3436static __inline int 3437mwl_cvtlegacyrix(int rix) 3438{ 3439#define N(x) (sizeof(x)/sizeof(x[0])) 3440 static const int ieeerates[] = 3441 { 2, 4, 11, 22, 44, 12, 18, 24, 36, 48, 72, 96, 108 }; 3442 return (rix < N(ieeerates) ? ieeerates[rix] : 0); 3443#undef N 3444} 3445 3446/* 3447 * Process completed xmit descriptors from the specified queue. 3448 */ 3449static int 3450mwl_tx_processq(struct mwl_softc *sc, struct mwl_txq *txq) 3451{ 3452#define EAGLE_TXD_STATUS_MCAST \ 3453 (EAGLE_TXD_STATUS_MULTICAST_TX | EAGLE_TXD_STATUS_BROADCAST_TX) 3454 struct ifnet *ifp = sc->sc_ifp; 3455 struct ieee80211com *ic = ifp->if_l2com; 3456 struct mwl_txbuf *bf; 3457 struct mwl_txdesc *ds; 3458 struct ieee80211_node *ni; 3459 struct mwl_node *an; 3460 int nreaped; 3461 uint32_t status; 3462 3463 DPRINTF(sc, MWL_DEBUG_TX_PROC, "%s: tx queue %u\n", __func__, txq->qnum); 3464 for (nreaped = 0;; nreaped++) { 3465 MWL_TXQ_LOCK(txq); 3466 bf = STAILQ_FIRST(&txq->active); 3467 if (bf == NULL) { 3468 MWL_TXQ_UNLOCK(txq); 3469 break; 3470 } 3471 ds = bf->bf_desc; 3472 MWL_TXDESC_SYNC(txq, ds, 3473 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 3474 if (ds->Status & htole32(EAGLE_TXD_STATUS_FW_OWNED)) { 3475 MWL_TXQ_UNLOCK(txq); 3476 break; 3477 } 3478 STAILQ_REMOVE_HEAD(&txq->active, bf_list); 3479 MWL_TXQ_UNLOCK(txq); 3480 3481#ifdef MWL_DEBUG 3482 if (sc->sc_debug & MWL_DEBUG_XMIT_DESC) 3483 mwl_printtxbuf(bf, txq->qnum, nreaped); 3484#endif 3485 ni = bf->bf_node; 3486 if (ni != NULL) { 3487 an = MWL_NODE(ni); 3488 status = le32toh(ds->Status); 3489 if (status & EAGLE_TXD_STATUS_OK) { 3490 uint16_t Format = le16toh(ds->Format); 3491 uint8_t txant = MS(Format, EAGLE_TXD_ANTENNA); 3492 3493 sc->sc_stats.mst_ant_tx[txant]++; 3494 if (status & EAGLE_TXD_STATUS_OK_RETRY) 3495 sc->sc_stats.mst_tx_retries++; 3496 if (status & EAGLE_TXD_STATUS_OK_MORE_RETRY) 3497 sc->sc_stats.mst_tx_mretries++; 3498 if (txq->qnum >= MWL_WME_AC_VO) 3499 ic->ic_wme.wme_hipri_traffic++; 3500 ni->ni_txrate = MS(Format, EAGLE_TXD_RATE); 3501 if ((Format & EAGLE_TXD_FORMAT_HT) == 0) { 3502 ni->ni_txrate = mwl_cvtlegacyrix( 3503 ni->ni_txrate); 3504 } else 3505 ni->ni_txrate |= IEEE80211_RATE_MCS; 3506 sc->sc_stats.mst_tx_rate = ni->ni_txrate; 3507 } else { 3508 if (status & EAGLE_TXD_STATUS_FAILED_LINK_ERROR) 3509 sc->sc_stats.mst_tx_linkerror++; 3510 if (status & EAGLE_TXD_STATUS_FAILED_XRETRY) 3511 sc->sc_stats.mst_tx_xretries++; 3512 if (status & EAGLE_TXD_STATUS_FAILED_AGING) 3513 sc->sc_stats.mst_tx_aging++; 3514 if (bf->bf_m->m_flags & M_FF) 3515 sc->sc_stats.mst_ff_txerr++; 3516 } 3517 /* 3518 * Do any tx complete callback. Note this must 3519 * be done before releasing the node reference. 3520 * XXX no way to figure out if frame was ACK'd 3521 */ 3522 if (bf->bf_m->m_flags & M_TXCB) { 3523 /* XXX strip fw len in case header inspected */ 3524 m_adj(bf->bf_m, sizeof(uint16_t)); 3525 ieee80211_process_callback(ni, bf->bf_m, 3526 (status & EAGLE_TXD_STATUS_OK) == 0); 3527 } 3528 /* 3529 * Reclaim reference to node. 3530 * 3531 * NB: the node may be reclaimed here if, for example 3532 * this is a DEAUTH message that was sent and the 3533 * node was timed out due to inactivity. 3534 */ 3535 ieee80211_free_node(ni); 3536 } 3537 ds->Status = htole32(EAGLE_TXD_STATUS_IDLE); 3538 3539 bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, 3540 BUS_DMASYNC_POSTWRITE); 3541 bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap); 3542 m_freem(bf->bf_m); 3543 3544 mwl_puttxbuf_tail(txq, bf); 3545 } 3546 return nreaped; 3547#undef EAGLE_TXD_STATUS_MCAST 3548} 3549 3550/* 3551 * Deferred processing of transmit interrupt; special-cased 3552 * for four hardware queues, 0-3. 3553 */ 3554static void 3555mwl_tx_proc(void *arg, int npending) 3556{ 3557 struct mwl_softc *sc = arg; 3558 struct ifnet *ifp = sc->sc_ifp; 3559 int nreaped; 3560 3561 /* 3562 * Process each active queue. 3563 */ 3564 nreaped = 0; 3565 if (!STAILQ_EMPTY(&sc->sc_txq[0].active)) 3566 nreaped += mwl_tx_processq(sc, &sc->sc_txq[0]); 3567 if (!STAILQ_EMPTY(&sc->sc_txq[1].active)) 3568 nreaped += mwl_tx_processq(sc, &sc->sc_txq[1]); 3569 if (!STAILQ_EMPTY(&sc->sc_txq[2].active)) 3570 nreaped += mwl_tx_processq(sc, &sc->sc_txq[2]); 3571 if (!STAILQ_EMPTY(&sc->sc_txq[3].active)) 3572 nreaped += mwl_tx_processq(sc, &sc->sc_txq[3]); 3573 3574 if (nreaped != 0) { 3575 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 3576 sc->sc_tx_timer = 0; 3577 if (!IFQ_IS_EMPTY(&ifp->if_snd)) { 3578 /* NB: kick fw; the tx thread may have been preempted */ 3579 mwl_hal_txstart(sc->sc_mh, 0); 3580 mwl_start(ifp); 3581 } 3582 } 3583} 3584 3585static void 3586mwl_tx_draintxq(struct mwl_softc *sc, struct mwl_txq *txq) 3587{ 3588 struct ieee80211_node *ni; 3589 struct mwl_txbuf *bf; 3590 u_int ix; 3591 3592 /* 3593 * NB: this assumes output has been stopped and 3594 * we do not need to block mwl_tx_tasklet 3595 */ 3596 for (ix = 0;; ix++) { 3597 MWL_TXQ_LOCK(txq); 3598 bf = STAILQ_FIRST(&txq->active); 3599 if (bf == NULL) { 3600 MWL_TXQ_UNLOCK(txq); 3601 break; 3602 } 3603 STAILQ_REMOVE_HEAD(&txq->active, bf_list); 3604 MWL_TXQ_UNLOCK(txq); 3605#ifdef MWL_DEBUG 3606 if (sc->sc_debug & MWL_DEBUG_RESET) { 3607 struct ifnet *ifp = sc->sc_ifp; 3608 struct ieee80211com *ic = ifp->if_l2com; 3609 const struct mwltxrec *tr = 3610 mtod(bf->bf_m, const struct mwltxrec *); 3611 mwl_printtxbuf(bf, txq->qnum, ix); 3612 ieee80211_dump_pkt(ic, (const uint8_t *)&tr->wh, 3613 bf->bf_m->m_len - sizeof(tr->fwlen), 0, -1); 3614 } 3615#endif /* MWL_DEBUG */ 3616 bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap); 3617 ni = bf->bf_node; 3618 if (ni != NULL) { 3619 /* 3620 * Reclaim node reference. 3621 */ 3622 ieee80211_free_node(ni); 3623 } 3624 m_freem(bf->bf_m); 3625 3626 mwl_puttxbuf_tail(txq, bf); 3627 } 3628} 3629 3630/* 3631 * Drain the transmit queues and reclaim resources. 3632 */ 3633static void 3634mwl_draintxq(struct mwl_softc *sc) 3635{ 3636 struct ifnet *ifp = sc->sc_ifp; 3637 int i; 3638 3639 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 3640 mwl_tx_draintxq(sc, &sc->sc_txq[i]); 3641 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 3642 sc->sc_tx_timer = 0; 3643} 3644 3645#ifdef MWL_DIAGAPI 3646/* 3647 * Reset the transmit queues to a pristine state after a fw download. 3648 */ 3649static void 3650mwl_resettxq(struct mwl_softc *sc) 3651{ 3652 int i; 3653 3654 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) 3655 mwl_txq_reset(sc, &sc->sc_txq[i]); 3656} 3657#endif /* MWL_DIAGAPI */ 3658 3659/* 3660 * Clear the transmit queues of any frames submitted for the 3661 * specified vap. This is done when the vap is deleted so we 3662 * don't potentially reference the vap after it is gone. 3663 * Note we cannot remove the frames; we only reclaim the node 3664 * reference. 3665 */ 3666static void 3667mwl_cleartxq(struct mwl_softc *sc, struct ieee80211vap *vap) 3668{ 3669 struct mwl_txq *txq; 3670 struct mwl_txbuf *bf; 3671 int i; 3672 3673 for (i = 0; i < MWL_NUM_TX_QUEUES; i++) { 3674 txq = &sc->sc_txq[i]; 3675 MWL_TXQ_LOCK(txq); 3676 STAILQ_FOREACH(bf, &txq->active, bf_list) { 3677 struct ieee80211_node *ni = bf->bf_node; 3678 if (ni != NULL && ni->ni_vap == vap) { 3679 bf->bf_node = NULL; 3680 ieee80211_free_node(ni); 3681 } 3682 } 3683 MWL_TXQ_UNLOCK(txq); 3684 } 3685} 3686 3687static int 3688mwl_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 3689 const uint8_t *frm, const uint8_t *efrm) 3690{ 3691 struct mwl_softc *sc = ni->ni_ic->ic_ifp->if_softc; 3692 const struct ieee80211_action *ia; 3693 3694 ia = (const struct ieee80211_action *) frm; 3695 if (ia->ia_category == IEEE80211_ACTION_CAT_HT && 3696 ia->ia_action == IEEE80211_ACTION_HT_MIMOPWRSAVE) { 3697 const struct ieee80211_action_ht_mimopowersave *mps = 3698 (const struct ieee80211_action_ht_mimopowersave *) ia; 3699 3700 mwl_hal_setmimops(sc->sc_mh, ni->ni_macaddr, 3701 mps->am_control & IEEE80211_A_HT_MIMOPWRSAVE_ENA, 3702 MS(mps->am_control, IEEE80211_A_HT_MIMOPWRSAVE_MODE)); 3703 return 0; 3704 } else 3705 return sc->sc_recv_action(ni, wh, frm, efrm); 3706} 3707 3708static int 3709mwl_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3710 int dialogtoken, int baparamset, int batimeout) 3711{ 3712 struct mwl_softc *sc = ni->ni_ic->ic_ifp->if_softc; 3713 struct ieee80211vap *vap = ni->ni_vap; 3714 struct mwl_node *mn = MWL_NODE(ni); 3715 struct mwl_bastate *bas; 3716 3717 bas = tap->txa_private; 3718 if (bas == NULL) { 3719 const MWL_HAL_BASTREAM *sp; 3720 /* 3721 * Check for a free BA stream slot. 3722 */ 3723#if MWL_MAXBA > 3 3724 if (mn->mn_ba[3].bastream == NULL) 3725 bas = &mn->mn_ba[3]; 3726 else 3727#endif 3728#if MWL_MAXBA > 2 3729 if (mn->mn_ba[2].bastream == NULL) 3730 bas = &mn->mn_ba[2]; 3731 else 3732#endif 3733#if MWL_MAXBA > 1 3734 if (mn->mn_ba[1].bastream == NULL) 3735 bas = &mn->mn_ba[1]; 3736 else 3737#endif 3738#if MWL_MAXBA > 0 3739 if (mn->mn_ba[0].bastream == NULL) 3740 bas = &mn->mn_ba[0]; 3741 else 3742#endif 3743 { 3744 /* sta already has max BA streams */ 3745 /* XXX assign BA stream to highest priority tid */ 3746 DPRINTF(sc, MWL_DEBUG_AMPDU, 3747 "%s: already has max bastreams\n", __func__); 3748 sc->sc_stats.mst_ampdu_reject++; 3749 return 0; 3750 } 3751 /* NB: no held reference to ni */ 3752 sp = mwl_hal_bastream_alloc(MWL_VAP(vap)->mv_hvap, 3753 (baparamset & IEEE80211_BAPS_POLICY_IMMEDIATE) != 0, 3754 ni->ni_macaddr, tap->txa_tid, ni->ni_htparam, 3755 ni, tap); 3756 if (sp == NULL) { 3757 /* 3758 * No available stream, return 0 so no 3759 * a-mpdu aggregation will be done. 3760 */ 3761 DPRINTF(sc, MWL_DEBUG_AMPDU, 3762 "%s: no bastream available\n", __func__); 3763 sc->sc_stats.mst_ampdu_nostream++; 3764 return 0; 3765 } 3766 DPRINTF(sc, MWL_DEBUG_AMPDU, "%s: alloc bastream %p\n", 3767 __func__, sp); 3768 /* NB: qos is left zero so we won't match in mwl_tx_start */ 3769 bas->bastream = sp; 3770 tap->txa_private = bas; 3771 } 3772 /* fetch current seq# from the firmware; if available */ 3773 if (mwl_hal_bastream_get_seqno(sc->sc_mh, bas->bastream, 3774 vap->iv_opmode == IEEE80211_M_STA ? vap->iv_myaddr : ni->ni_macaddr, 3775 &tap->txa_start) != 0) 3776 tap->txa_start = 0; 3777 return sc->sc_addba_request(ni, tap, dialogtoken, baparamset, batimeout); 3778} 3779 3780static int 3781mwl_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3782 int code, int baparamset, int batimeout) 3783{ 3784 struct mwl_softc *sc = ni->ni_ic->ic_ifp->if_softc; 3785 struct mwl_bastate *bas; 3786 3787 bas = tap->txa_private; 3788 if (bas == NULL) { 3789 /* XXX should not happen */ 3790 DPRINTF(sc, MWL_DEBUG_AMPDU, 3791 "%s: no BA stream allocated, TID %d\n", 3792 __func__, tap->txa_tid); 3793 sc->sc_stats.mst_addba_nostream++; 3794 return 0; 3795 } 3796 if (code == IEEE80211_STATUS_SUCCESS) { 3797 struct ieee80211vap *vap = ni->ni_vap; 3798 int bufsiz, error; 3799 3800 /* 3801 * Tell the firmware to setup the BA stream; 3802 * we know resources are available because we 3803 * pre-allocated one before forming the request. 3804 */ 3805 bufsiz = MS(baparamset, IEEE80211_BAPS_BUFSIZ); 3806 if (bufsiz == 0) 3807 bufsiz = IEEE80211_AGGR_BAWMAX; 3808 error = mwl_hal_bastream_create(MWL_VAP(vap)->mv_hvap, 3809 bas->bastream, bufsiz, bufsiz, tap->txa_start); 3810 if (error != 0) { 3811 /* 3812 * Setup failed, return immediately so no a-mpdu 3813 * aggregation will be done. 3814 */ 3815 mwl_hal_bastream_destroy(sc->sc_mh, bas->bastream); 3816 mwl_bastream_free(bas); 3817 tap->txa_private = NULL; 3818 3819 DPRINTF(sc, MWL_DEBUG_AMPDU, 3820 "%s: create failed, error %d, bufsiz %d TID %d " 3821 "htparam 0x%x\n", __func__, error, bufsiz, 3822 tap->txa_tid, ni->ni_htparam); 3823 sc->sc_stats.mst_bacreate_failed++; 3824 return 0; 3825 } 3826 /* NB: cache txq to avoid ptr indirect */ 3827 mwl_bastream_setup(bas, tap->txa_tid, bas->bastream->txq); 3828 DPRINTF(sc, MWL_DEBUG_AMPDU, 3829 "%s: bastream %p assigned to txq %d TID %d bufsiz %d " 3830 "htparam 0x%x\n", __func__, bas->bastream, 3831 bas->txq, tap->txa_tid, bufsiz, ni->ni_htparam); 3832 } else { 3833 /* 3834 * Other side NAK'd us; return the resources. 3835 */ 3836 DPRINTF(sc, MWL_DEBUG_AMPDU, 3837 "%s: request failed with code %d, destroy bastream %p\n", 3838 __func__, code, bas->bastream); 3839 mwl_hal_bastream_destroy(sc->sc_mh, bas->bastream); 3840 mwl_bastream_free(bas); 3841 tap->txa_private = NULL; 3842 } 3843 /* NB: firmware sends BAR so we don't need to */ 3844 return sc->sc_addba_response(ni, tap, code, baparamset, batimeout); 3845} 3846 3847static void 3848mwl_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3849{ 3850 struct mwl_softc *sc = ni->ni_ic->ic_ifp->if_softc; 3851 struct mwl_bastate *bas; 3852 3853 bas = tap->txa_private; 3854 if (bas != NULL) { 3855 DPRINTF(sc, MWL_DEBUG_AMPDU, "%s: destroy bastream %p\n", 3856 __func__, bas->bastream); 3857 mwl_hal_bastream_destroy(sc->sc_mh, bas->bastream); 3858 mwl_bastream_free(bas); 3859 tap->txa_private = NULL; 3860 } 3861 sc->sc_addba_stop(ni, tap); 3862} 3863 3864/* 3865 * Setup the rx data structures. This should only be 3866 * done once or we may get out of sync with the firmware. 3867 */ 3868static int 3869mwl_startrecv(struct mwl_softc *sc) 3870{ 3871 if (!sc->sc_recvsetup) { 3872 struct mwl_rxbuf *bf, *prev; 3873 struct mwl_rxdesc *ds; 3874 3875 prev = NULL; 3876 STAILQ_FOREACH(bf, &sc->sc_rxbuf, bf_list) { 3877 int error = mwl_rxbuf_init(sc, bf); 3878 if (error != 0) { 3879 DPRINTF(sc, MWL_DEBUG_RECV, 3880 "%s: mwl_rxbuf_init failed %d\n", 3881 __func__, error); 3882 return error; 3883 } 3884 if (prev != NULL) { 3885 ds = prev->bf_desc; 3886 ds->pPhysNext = htole32(bf->bf_daddr); 3887 } 3888 prev = bf; 3889 } 3890 if (prev != NULL) { 3891 ds = prev->bf_desc; 3892 ds->pPhysNext = 3893 htole32(STAILQ_FIRST(&sc->sc_rxbuf)->bf_daddr); 3894 } 3895 sc->sc_recvsetup = 1; 3896 } 3897 mwl_mode_init(sc); /* set filters, etc. */ 3898 return 0; 3899} 3900 3901static MWL_HAL_APMODE 3902mwl_getapmode(const struct ieee80211vap *vap, struct ieee80211_channel *chan) 3903{ 3904 MWL_HAL_APMODE mode; 3905 3906 if (IEEE80211_IS_CHAN_HT(chan)) { 3907 if (vap->iv_flags_ht & IEEE80211_FHT_PUREN) 3908 mode = AP_MODE_N_ONLY; 3909 else if (IEEE80211_IS_CHAN_5GHZ(chan)) 3910 mode = AP_MODE_AandN; 3911 else if (vap->iv_flags & IEEE80211_F_PUREG) 3912 mode = AP_MODE_GandN; 3913 else 3914 mode = AP_MODE_BandGandN; 3915 } else if (IEEE80211_IS_CHAN_ANYG(chan)) { 3916 if (vap->iv_flags & IEEE80211_F_PUREG) 3917 mode = AP_MODE_G_ONLY; 3918 else 3919 mode = AP_MODE_MIXED; 3920 } else if (IEEE80211_IS_CHAN_B(chan)) 3921 mode = AP_MODE_B_ONLY; 3922 else if (IEEE80211_IS_CHAN_A(chan)) 3923 mode = AP_MODE_A_ONLY; 3924 else 3925 mode = AP_MODE_MIXED; /* XXX should not happen? */ 3926 return mode; 3927} 3928 3929static int 3930mwl_setapmode(struct ieee80211vap *vap, struct ieee80211_channel *chan) 3931{ 3932 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 3933 return mwl_hal_setapmode(hvap, mwl_getapmode(vap, chan)); 3934} 3935 3936/* 3937 * Set/change channels. 3938 */ 3939static int 3940mwl_chan_set(struct mwl_softc *sc, struct ieee80211_channel *chan) 3941{ 3942 struct mwl_hal *mh = sc->sc_mh; 3943 struct ifnet *ifp = sc->sc_ifp; 3944 struct ieee80211com *ic = ifp->if_l2com; 3945 MWL_HAL_CHANNEL hchan; 3946 int maxtxpow; 3947 3948 DPRINTF(sc, MWL_DEBUG_RESET, "%s: chan %u MHz/flags 0x%x\n", 3949 __func__, chan->ic_freq, chan->ic_flags); 3950 3951 /* 3952 * Convert to a HAL channel description with 3953 * the flags constrained to reflect the current 3954 * operating mode. 3955 */ 3956 mwl_mapchan(&hchan, chan); 3957 mwl_hal_intrset(mh, 0); /* disable interrupts */ 3958#if 0 3959 mwl_draintxq(sc); /* clear pending tx frames */ 3960#endif 3961 mwl_hal_setchannel(mh, &hchan); 3962 /* 3963 * Tx power is cap'd by the regulatory setting and 3964 * possibly a user-set limit. We pass the min of 3965 * these to the hal to apply them to the cal data 3966 * for this channel. 3967 * XXX min bound? 3968 */ 3969 maxtxpow = 2*chan->ic_maxregpower; 3970 if (maxtxpow > ic->ic_txpowlimit) 3971 maxtxpow = ic->ic_txpowlimit; 3972 mwl_hal_settxpower(mh, &hchan, maxtxpow / 2); 3973 /* NB: potentially change mcast/mgt rates */ 3974 mwl_setcurchanrates(sc); 3975 3976 /* 3977 * Update internal state. 3978 */ 3979 sc->sc_tx_th.wt_chan_freq = htole16(chan->ic_freq); 3980 sc->sc_rx_th.wr_chan_freq = htole16(chan->ic_freq); 3981 if (IEEE80211_IS_CHAN_A(chan)) { 3982 sc->sc_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_A); 3983 sc->sc_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_A); 3984 } else if (IEEE80211_IS_CHAN_ANYG(chan)) { 3985 sc->sc_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_G); 3986 sc->sc_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_G); 3987 } else { 3988 sc->sc_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_B); 3989 sc->sc_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_B); 3990 } 3991 sc->sc_curchan = hchan; 3992 mwl_hal_intrset(mh, sc->sc_imask); 3993 3994 return 0; 3995} 3996 3997static void 3998mwl_scan_start(struct ieee80211com *ic) 3999{ 4000 struct ifnet *ifp = ic->ic_ifp; 4001 struct mwl_softc *sc = ifp->if_softc; 4002 4003 DPRINTF(sc, MWL_DEBUG_STATE, "%s\n", __func__); 4004} 4005 4006static void 4007mwl_scan_end(struct ieee80211com *ic) 4008{ 4009 struct ifnet *ifp = ic->ic_ifp; 4010 struct mwl_softc *sc = ifp->if_softc; 4011 4012 DPRINTF(sc, MWL_DEBUG_STATE, "%s\n", __func__); 4013} 4014 4015static void 4016mwl_set_channel(struct ieee80211com *ic) 4017{ 4018 struct ifnet *ifp = ic->ic_ifp; 4019 struct mwl_softc *sc = ifp->if_softc; 4020 4021 (void) mwl_chan_set(sc, ic->ic_curchan); 4022} 4023 4024/* 4025 * Handle a channel switch request. We inform the firmware 4026 * and mark the global state to suppress various actions. 4027 * NB: we issue only one request to the fw; we may be called 4028 * multiple times if there are multiple vap's. 4029 */ 4030static void 4031mwl_startcsa(struct ieee80211vap *vap) 4032{ 4033 struct ieee80211com *ic = vap->iv_ic; 4034 struct mwl_softc *sc = ic->ic_ifp->if_softc; 4035 MWL_HAL_CHANNEL hchan; 4036 4037 if (sc->sc_csapending) 4038 return; 4039 4040 mwl_mapchan(&hchan, ic->ic_csa_newchan); 4041 /* 1 =>'s quiet channel */ 4042 mwl_hal_setchannelswitchie(sc->sc_mh, &hchan, 1, ic->ic_csa_count); 4043 sc->sc_csapending = 1; 4044} 4045 4046/* 4047 * Plumb any static WEP key for the station. This is 4048 * necessary as we must propagate the key from the 4049 * global key table of the vap to each sta db entry. 4050 */ 4051static void 4052mwl_setanywepkey(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 4053{ 4054 if ((vap->iv_flags & (IEEE80211_F_PRIVACY|IEEE80211_F_WPA)) == 4055 IEEE80211_F_PRIVACY && 4056 vap->iv_def_txkey != IEEE80211_KEYIX_NONE && 4057 vap->iv_nw_keys[vap->iv_def_txkey].wk_keyix != IEEE80211_KEYIX_NONE) 4058 (void) mwl_key_set(vap, &vap->iv_nw_keys[vap->iv_def_txkey], mac); 4059} 4060 4061static int 4062mwl_peerstadb(struct ieee80211_node *ni, int aid, int staid, MWL_HAL_PEERINFO *pi) 4063{ 4064#define WME(ie) ((const struct ieee80211_wme_info *) ie) 4065 struct ieee80211vap *vap = ni->ni_vap; 4066 struct mwl_hal_vap *hvap; 4067 int error; 4068 4069 if (vap->iv_opmode == IEEE80211_M_WDS) { 4070 /* 4071 * WDS vap's do not have a f/w vap; instead they piggyback 4072 * on an AP vap and we must install the sta db entry and 4073 * crypto state using that AP's handle (the WDS vap has none). 4074 */ 4075 hvap = MWL_VAP(vap)->mv_ap_hvap; 4076 } else 4077 hvap = MWL_VAP(vap)->mv_hvap; 4078 error = mwl_hal_newstation(hvap, ni->ni_macaddr, 4079 aid, staid, pi, 4080 ni->ni_flags & (IEEE80211_NODE_QOS | IEEE80211_NODE_HT), 4081 ni->ni_ies.wme_ie != NULL ? WME(ni->ni_ies.wme_ie)->wme_info : 0); 4082 if (error == 0) { 4083 /* 4084 * Setup security for this station. For sta mode this is 4085 * needed even though do the same thing on transition to 4086 * AUTH state because the call to mwl_hal_newstation 4087 * clobbers the crypto state we setup. 4088 */ 4089 mwl_setanywepkey(vap, ni->ni_macaddr); 4090 } 4091 return error; 4092#undef WME 4093} 4094 4095static void 4096mwl_setglobalkeys(struct ieee80211vap *vap) 4097{ 4098 struct ieee80211_key *wk; 4099 4100 wk = &vap->iv_nw_keys[0]; 4101 for (; wk < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; wk++) 4102 if (wk->wk_keyix != IEEE80211_KEYIX_NONE) 4103 (void) mwl_key_set(vap, wk, vap->iv_myaddr); 4104} 4105 4106/* 4107 * Convert a legacy rate set to a firmware bitmask. 4108 */ 4109static uint32_t 4110get_rate_bitmap(const struct ieee80211_rateset *rs) 4111{ 4112 uint32_t rates; 4113 int i; 4114 4115 rates = 0; 4116 for (i = 0; i < rs->rs_nrates; i++) 4117 switch (rs->rs_rates[i] & IEEE80211_RATE_VAL) { 4118 case 2: rates |= 0x001; break; 4119 case 4: rates |= 0x002; break; 4120 case 11: rates |= 0x004; break; 4121 case 22: rates |= 0x008; break; 4122 case 44: rates |= 0x010; break; 4123 case 12: rates |= 0x020; break; 4124 case 18: rates |= 0x040; break; 4125 case 24: rates |= 0x080; break; 4126 case 36: rates |= 0x100; break; 4127 case 48: rates |= 0x200; break; 4128 case 72: rates |= 0x400; break; 4129 case 96: rates |= 0x800; break; 4130 case 108: rates |= 0x1000; break; 4131 } 4132 return rates; 4133} 4134 4135/* 4136 * Construct an HT firmware bitmask from an HT rate set. 4137 */ 4138static uint32_t 4139get_htrate_bitmap(const struct ieee80211_htrateset *rs) 4140{ 4141 uint32_t rates; 4142 int i; 4143 4144 rates = 0; 4145 for (i = 0; i < rs->rs_nrates; i++) { 4146 if (rs->rs_rates[i] < 16) 4147 rates |= 1<<rs->rs_rates[i]; 4148 } 4149 return rates; 4150} 4151 4152/* 4153 * Craft station database entry for station. 4154 * NB: use host byte order here, the hal handles byte swapping. 4155 */ 4156static MWL_HAL_PEERINFO * 4157mkpeerinfo(MWL_HAL_PEERINFO *pi, const struct ieee80211_node *ni) 4158{ 4159 const struct ieee80211vap *vap = ni->ni_vap; 4160 4161 memset(pi, 0, sizeof(*pi)); 4162 pi->LegacyRateBitMap = get_rate_bitmap(&ni->ni_rates); 4163 pi->CapInfo = ni->ni_capinfo; 4164 if (ni->ni_flags & IEEE80211_NODE_HT) { 4165 /* HT capabilities, etc */ 4166 pi->HTCapabilitiesInfo = ni->ni_htcap; 4167 /* XXX pi.HTCapabilitiesInfo */ 4168 pi->MacHTParamInfo = ni->ni_htparam; 4169 pi->HTRateBitMap = get_htrate_bitmap(&ni->ni_htrates); 4170 pi->AddHtInfo.ControlChan = ni->ni_htctlchan; 4171 pi->AddHtInfo.AddChan = ni->ni_ht2ndchan; 4172 pi->AddHtInfo.OpMode = ni->ni_htopmode; 4173 pi->AddHtInfo.stbc = ni->ni_htstbc; 4174 4175 /* constrain according to local configuration */ 4176 if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40) == 0) 4177 pi->HTCapabilitiesInfo &= ~IEEE80211_HTCAP_SHORTGI40; 4178 if ((vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20) == 0) 4179 pi->HTCapabilitiesInfo &= ~IEEE80211_HTCAP_SHORTGI20; 4180 if (ni->ni_chw != 40) 4181 pi->HTCapabilitiesInfo &= ~IEEE80211_HTCAP_CHWIDTH40; 4182 } 4183 return pi; 4184} 4185 4186/* 4187 * Re-create the local sta db entry for a vap to ensure 4188 * up to date WME state is pushed to the firmware. Because 4189 * this resets crypto state this must be followed by a 4190 * reload of any keys in the global key table. 4191 */ 4192static int 4193mwl_localstadb(struct ieee80211vap *vap) 4194{ 4195#define WME(ie) ((const struct ieee80211_wme_info *) ie) 4196 struct mwl_hal_vap *hvap = MWL_VAP(vap)->mv_hvap; 4197 struct ieee80211_node *bss; 4198 MWL_HAL_PEERINFO pi; 4199 int error; 4200 4201 switch (vap->iv_opmode) { 4202 case IEEE80211_M_STA: 4203 bss = vap->iv_bss; 4204 error = mwl_hal_newstation(hvap, vap->iv_myaddr, 0, 0, 4205 vap->iv_state == IEEE80211_S_RUN ? 4206 mkpeerinfo(&pi, bss) : NULL, 4207 (bss->ni_flags & (IEEE80211_NODE_QOS | IEEE80211_NODE_HT)), 4208 bss->ni_ies.wme_ie != NULL ? 4209 WME(bss->ni_ies.wme_ie)->wme_info : 0); 4210 if (error == 0) 4211 mwl_setglobalkeys(vap); 4212 break; 4213 case IEEE80211_M_HOSTAP: 4214 case IEEE80211_M_MBSS: 4215 error = mwl_hal_newstation(hvap, vap->iv_myaddr, 4216 0, 0, NULL, vap->iv_flags & IEEE80211_F_WME, 0); 4217 if (error == 0) 4218 mwl_setglobalkeys(vap); 4219 break; 4220 default: 4221 error = 0; 4222 break; 4223 } 4224 return error; 4225#undef WME 4226} 4227 4228static int 4229mwl_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 4230{ 4231 struct mwl_vap *mvp = MWL_VAP(vap); 4232 struct mwl_hal_vap *hvap = mvp->mv_hvap; 4233 struct ieee80211com *ic = vap->iv_ic; 4234 struct ieee80211_node *ni = NULL; 4235 struct ifnet *ifp = ic->ic_ifp; 4236 struct mwl_softc *sc = ifp->if_softc; 4237 struct mwl_hal *mh = sc->sc_mh; 4238 enum ieee80211_state ostate = vap->iv_state; 4239 int error; 4240 4241 DPRINTF(sc, MWL_DEBUG_STATE, "%s: %s: %s -> %s\n", 4242 vap->iv_ifp->if_xname, __func__, 4243 ieee80211_state_name[ostate], ieee80211_state_name[nstate]); 4244 4245 callout_stop(&sc->sc_timer); 4246 /* 4247 * Clear current radar detection state. 4248 */ 4249 if (ostate == IEEE80211_S_CAC) { 4250 /* stop quiet mode radar detection */ 4251 mwl_hal_setradardetection(mh, DR_CHK_CHANNEL_AVAILABLE_STOP); 4252 } else if (sc->sc_radarena) { 4253 /* stop in-service radar detection */ 4254 mwl_hal_setradardetection(mh, DR_DFS_DISABLE); 4255 sc->sc_radarena = 0; 4256 } 4257 /* 4258 * Carry out per-state actions before doing net80211 work. 4259 */ 4260 if (nstate == IEEE80211_S_INIT) { 4261 /* NB: only ap+sta vap's have a fw entity */ 4262 if (hvap != NULL) 4263 mwl_hal_stop(hvap); 4264 } else if (nstate == IEEE80211_S_SCAN) { 4265 mwl_hal_start(hvap); 4266 /* NB: this disables beacon frames */ 4267 mwl_hal_setinframode(hvap); 4268 } else if (nstate == IEEE80211_S_AUTH) { 4269 /* 4270 * Must create a sta db entry in case a WEP key needs to 4271 * be plumbed. This entry will be overwritten if we 4272 * associate; otherwise it will be reclaimed on node free. 4273 */ 4274 ni = vap->iv_bss; 4275 MWL_NODE(ni)->mn_hvap = hvap; 4276 (void) mwl_peerstadb(ni, 0, 0, NULL); 4277 } else if (nstate == IEEE80211_S_CSA) { 4278 /* XXX move to below? */ 4279 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 4280 vap->iv_opmode == IEEE80211_M_MBSS) 4281 mwl_startcsa(vap); 4282 } else if (nstate == IEEE80211_S_CAC) { 4283 /* XXX move to below? */ 4284 /* stop ap xmit and enable quiet mode radar detection */ 4285 mwl_hal_setradardetection(mh, DR_CHK_CHANNEL_AVAILABLE_START); 4286 } 4287 4288 /* 4289 * Invoke the parent method to do net80211 work. 4290 */ 4291 error = mvp->mv_newstate(vap, nstate, arg); 4292 4293 /* 4294 * Carry out work that must be done after net80211 runs; 4295 * this work requires up to date state (e.g. iv_bss). 4296 */ 4297 if (error == 0 && nstate == IEEE80211_S_RUN) { 4298 /* NB: collect bss node again, it may have changed */ 4299 ni = vap->iv_bss; 4300 4301 DPRINTF(sc, MWL_DEBUG_STATE, 4302 "%s: %s(RUN): iv_flags 0x%08x bintvl %d bssid %s " 4303 "capinfo 0x%04x chan %d\n", 4304 vap->iv_ifp->if_xname, __func__, vap->iv_flags, 4305 ni->ni_intval, ether_sprintf(ni->ni_bssid), ni->ni_capinfo, 4306 ieee80211_chan2ieee(ic, ic->ic_curchan)); 4307 4308 /* 4309 * Recreate local sta db entry to update WME/HT state. 4310 */ 4311 mwl_localstadb(vap); 4312 switch (vap->iv_opmode) { 4313 case IEEE80211_M_HOSTAP: 4314 case IEEE80211_M_MBSS: 4315 if (ostate == IEEE80211_S_CAC) { 4316 /* enable in-service radar detection */ 4317 mwl_hal_setradardetection(mh, 4318 DR_IN_SERVICE_MONITOR_START); 4319 sc->sc_radarena = 1; 4320 } 4321 /* 4322 * Allocate and setup the beacon frame 4323 * (and related state). 4324 */ 4325 error = mwl_reset_vap(vap, IEEE80211_S_RUN); 4326 if (error != 0) { 4327 DPRINTF(sc, MWL_DEBUG_STATE, 4328 "%s: beacon setup failed, error %d\n", 4329 __func__, error); 4330 goto bad; 4331 } 4332 /* NB: must be after setting up beacon */ 4333 mwl_hal_start(hvap); 4334 break; 4335 case IEEE80211_M_STA: 4336 DPRINTF(sc, MWL_DEBUG_STATE, "%s: %s: aid 0x%x\n", 4337 vap->iv_ifp->if_xname, __func__, ni->ni_associd); 4338 /* 4339 * Set state now that we're associated. 4340 */ 4341 mwl_hal_setassocid(hvap, ni->ni_bssid, ni->ni_associd); 4342 mwl_setrates(vap); 4343 mwl_hal_setrtsthreshold(hvap, vap->iv_rtsthreshold); 4344 if ((vap->iv_flags & IEEE80211_F_DWDS) && 4345 sc->sc_ndwdsvaps++ == 0) 4346 mwl_hal_setdwds(mh, 1); 4347 break; 4348 case IEEE80211_M_WDS: 4349 DPRINTF(sc, MWL_DEBUG_STATE, "%s: %s: bssid %s\n", 4350 vap->iv_ifp->if_xname, __func__, 4351 ether_sprintf(ni->ni_bssid)); 4352 mwl_seteapolformat(vap); 4353 break; 4354 default: 4355 break; 4356 } 4357 /* 4358 * Set CS mode according to operating channel; 4359 * this mostly an optimization for 5GHz. 4360 * 4361 * NB: must follow mwl_hal_start which resets csmode 4362 */ 4363 if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 4364 mwl_hal_setcsmode(mh, CSMODE_AGGRESSIVE); 4365 else 4366 mwl_hal_setcsmode(mh, CSMODE_AUTO_ENA); 4367 /* 4368 * Start timer to prod firmware. 4369 */ 4370 if (sc->sc_ageinterval != 0) 4371 callout_reset(&sc->sc_timer, sc->sc_ageinterval*hz, 4372 mwl_agestations, sc); 4373 } else if (nstate == IEEE80211_S_SLEEP) { 4374 /* XXX set chip in power save */ 4375 } else if ((vap->iv_flags & IEEE80211_F_DWDS) && 4376 --sc->sc_ndwdsvaps == 0) 4377 mwl_hal_setdwds(mh, 0); 4378bad: 4379 return error; 4380} 4381 4382/* 4383 * Manage station id's; these are separate from AID's 4384 * as AID's may have values out of the range of possible 4385 * station id's acceptable to the firmware. 4386 */ 4387static int 4388allocstaid(struct mwl_softc *sc, int aid) 4389{ 4390 int staid; 4391 4392 if (!(0 < aid && aid < MWL_MAXSTAID) || isset(sc->sc_staid, aid)) { 4393 /* NB: don't use 0 */ 4394 for (staid = 1; staid < MWL_MAXSTAID; staid++) 4395 if (isclr(sc->sc_staid, staid)) 4396 break; 4397 } else 4398 staid = aid; 4399 setbit(sc->sc_staid, staid); 4400 return staid; 4401} 4402 4403static void 4404delstaid(struct mwl_softc *sc, int staid) 4405{ 4406 clrbit(sc->sc_staid, staid); 4407} 4408 4409/* 4410 * Setup driver-specific state for a newly associated node. 4411 * Note that we're called also on a re-associate, the isnew 4412 * param tells us if this is the first time or not. 4413 */ 4414static void 4415mwl_newassoc(struct ieee80211_node *ni, int isnew) 4416{ 4417 struct ieee80211vap *vap = ni->ni_vap; 4418 struct mwl_softc *sc = vap->iv_ic->ic_ifp->if_softc; 4419 struct mwl_node *mn = MWL_NODE(ni); 4420 MWL_HAL_PEERINFO pi; 4421 uint16_t aid; 4422 int error; 4423 4424 aid = IEEE80211_AID(ni->ni_associd); 4425 if (isnew) { 4426 mn->mn_staid = allocstaid(sc, aid); 4427 mn->mn_hvap = MWL_VAP(vap)->mv_hvap; 4428 } else { 4429 mn = MWL_NODE(ni); 4430 /* XXX reset BA stream? */ 4431 } 4432 DPRINTF(sc, MWL_DEBUG_NODE, "%s: mac %s isnew %d aid %d staid %d\n", 4433 __func__, ether_sprintf(ni->ni_macaddr), isnew, aid, mn->mn_staid); 4434 error = mwl_peerstadb(ni, aid, mn->mn_staid, mkpeerinfo(&pi, ni)); 4435 if (error != 0) { 4436 DPRINTF(sc, MWL_DEBUG_NODE, 4437 "%s: error %d creating sta db entry\n", 4438 __func__, error); 4439 /* XXX how to deal with error? */ 4440 } 4441} 4442 4443/* 4444 * Periodically poke the firmware to age out station state 4445 * (power save queues, pending tx aggregates). 4446 */ 4447static void 4448mwl_agestations(void *arg) 4449{ 4450 struct mwl_softc *sc = arg; 4451 4452 mwl_hal_setkeepalive(sc->sc_mh); 4453 if (sc->sc_ageinterval != 0) /* NB: catch dynamic changes */ 4454 callout_schedule(&sc->sc_timer, sc->sc_ageinterval*hz); 4455} 4456 4457static const struct mwl_hal_channel * 4458findhalchannel(const MWL_HAL_CHANNELINFO *ci, int ieee) 4459{ 4460 int i; 4461 4462 for (i = 0; i < ci->nchannels; i++) { 4463 const struct mwl_hal_channel *hc = &ci->channels[i]; 4464 if (hc->ieee == ieee) 4465 return hc; 4466 } 4467 return NULL; 4468} 4469 4470static int 4471mwl_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd, 4472 int nchan, struct ieee80211_channel chans[]) 4473{ 4474 struct mwl_softc *sc = ic->ic_ifp->if_softc; 4475 struct mwl_hal *mh = sc->sc_mh; 4476 const MWL_HAL_CHANNELINFO *ci; 4477 int i; 4478 4479 for (i = 0; i < nchan; i++) { 4480 struct ieee80211_channel *c = &chans[i]; 4481 const struct mwl_hal_channel *hc; 4482 4483 if (IEEE80211_IS_CHAN_2GHZ(c)) { 4484 mwl_hal_getchannelinfo(mh, MWL_FREQ_BAND_2DOT4GHZ, 4485 IEEE80211_IS_CHAN_HT40(c) ? 4486 MWL_CH_40_MHz_WIDTH : MWL_CH_20_MHz_WIDTH, &ci); 4487 } else if (IEEE80211_IS_CHAN_5GHZ(c)) { 4488 mwl_hal_getchannelinfo(mh, MWL_FREQ_BAND_5GHZ, 4489 IEEE80211_IS_CHAN_HT40(c) ? 4490 MWL_CH_40_MHz_WIDTH : MWL_CH_20_MHz_WIDTH, &ci); 4491 } else { 4492 if_printf(ic->ic_ifp, 4493 "%s: channel %u freq %u/0x%x not 2.4/5GHz\n", 4494 __func__, c->ic_ieee, c->ic_freq, c->ic_flags); 4495 return EINVAL; 4496 } 4497 /* 4498 * Verify channel has cal data and cap tx power. 4499 */ 4500 hc = findhalchannel(ci, c->ic_ieee); 4501 if (hc != NULL) { 4502 if (c->ic_maxpower > 2*hc->maxTxPow) 4503 c->ic_maxpower = 2*hc->maxTxPow; 4504 goto next; 4505 } 4506 if (IEEE80211_IS_CHAN_HT40(c)) { 4507 /* 4508 * Look for the extension channel since the 4509 * hal table only has the primary channel. 4510 */ 4511 hc = findhalchannel(ci, c->ic_extieee); 4512 if (hc != NULL) { 4513 if (c->ic_maxpower > 2*hc->maxTxPow) 4514 c->ic_maxpower = 2*hc->maxTxPow; 4515 goto next; 4516 } 4517 } 4518 if_printf(ic->ic_ifp, 4519 "%s: no cal data for channel %u ext %u freq %u/0x%x\n", 4520 __func__, c->ic_ieee, c->ic_extieee, 4521 c->ic_freq, c->ic_flags); 4522 return EINVAL; 4523 next: 4524 ; 4525 } 4526 return 0; 4527} 4528 4529#define IEEE80211_CHAN_HTG (IEEE80211_CHAN_HT|IEEE80211_CHAN_G) 4530#define IEEE80211_CHAN_HTA (IEEE80211_CHAN_HT|IEEE80211_CHAN_A) 4531 4532static void 4533addchan(struct ieee80211_channel *c, int freq, int flags, int ieee, int txpow) 4534{ 4535 c->ic_freq = freq; 4536 c->ic_flags = flags; 4537 c->ic_ieee = ieee; 4538 c->ic_minpower = 0; 4539 c->ic_maxpower = 2*txpow; 4540 c->ic_maxregpower = txpow; 4541} 4542 4543static const struct ieee80211_channel * 4544findchannel(const struct ieee80211_channel chans[], int nchans, 4545 int freq, int flags) 4546{ 4547 const struct ieee80211_channel *c; 4548 int i; 4549 4550 for (i = 0; i < nchans; i++) { 4551 c = &chans[i]; 4552 if (c->ic_freq == freq && c->ic_flags == flags) 4553 return c; 4554 } 4555 return NULL; 4556} 4557 4558static void 4559addht40channels(struct ieee80211_channel chans[], int maxchans, int *nchans, 4560 const MWL_HAL_CHANNELINFO *ci, int flags) 4561{ 4562 struct ieee80211_channel *c; 4563 const struct ieee80211_channel *extc; 4564 const struct mwl_hal_channel *hc; 4565 int i; 4566 4567 c = &chans[*nchans]; 4568 4569 flags &= ~IEEE80211_CHAN_HT; 4570 for (i = 0; i < ci->nchannels; i++) { 4571 /* 4572 * Each entry defines an HT40 channel pair; find the 4573 * extension channel above and the insert the pair. 4574 */ 4575 hc = &ci->channels[i]; 4576 extc = findchannel(chans, *nchans, hc->freq+20, 4577 flags | IEEE80211_CHAN_HT20); 4578 if (extc != NULL) { 4579 if (*nchans >= maxchans) 4580 break; 4581 addchan(c, hc->freq, flags | IEEE80211_CHAN_HT40U, 4582 hc->ieee, hc->maxTxPow); 4583 c->ic_extieee = extc->ic_ieee; 4584 c++, (*nchans)++; 4585 if (*nchans >= maxchans) 4586 break; 4587 addchan(c, extc->ic_freq, flags | IEEE80211_CHAN_HT40D, 4588 extc->ic_ieee, hc->maxTxPow); 4589 c->ic_extieee = hc->ieee; 4590 c++, (*nchans)++; 4591 } 4592 } 4593} 4594 4595static void 4596addchannels(struct ieee80211_channel chans[], int maxchans, int *nchans, 4597 const MWL_HAL_CHANNELINFO *ci, int flags) 4598{ 4599 struct ieee80211_channel *c; 4600 int i; 4601 4602 c = &chans[*nchans]; 4603 4604 for (i = 0; i < ci->nchannels; i++) { 4605 const struct mwl_hal_channel *hc; 4606 4607 hc = &ci->channels[i]; 4608 if (*nchans >= maxchans) 4609 break; 4610 addchan(c, hc->freq, flags, hc->ieee, hc->maxTxPow); 4611 c++, (*nchans)++; 4612 if (flags == IEEE80211_CHAN_G || flags == IEEE80211_CHAN_HTG) { 4613 /* g channel have a separate b-only entry */ 4614 if (*nchans >= maxchans) 4615 break; 4616 c[0] = c[-1]; 4617 c[-1].ic_flags = IEEE80211_CHAN_B; 4618 c++, (*nchans)++; 4619 } 4620 if (flags == IEEE80211_CHAN_HTG) { 4621 /* HT g channel have a separate g-only entry */ 4622 if (*nchans >= maxchans) 4623 break; 4624 c[-1].ic_flags = IEEE80211_CHAN_G; 4625 c[0] = c[-1]; 4626 c[0].ic_flags &= ~IEEE80211_CHAN_HT; 4627 c[0].ic_flags |= IEEE80211_CHAN_HT20; /* HT20 */ 4628 c++, (*nchans)++; 4629 } 4630 if (flags == IEEE80211_CHAN_HTA) { 4631 /* HT a channel have a separate a-only entry */ 4632 if (*nchans >= maxchans) 4633 break; 4634 c[-1].ic_flags = IEEE80211_CHAN_A; 4635 c[0] = c[-1]; 4636 c[0].ic_flags &= ~IEEE80211_CHAN_HT; 4637 c[0].ic_flags |= IEEE80211_CHAN_HT20; /* HT20 */ 4638 c++, (*nchans)++; 4639 } 4640 } 4641} 4642 4643static void 4644getchannels(struct mwl_softc *sc, int maxchans, int *nchans, 4645 struct ieee80211_channel chans[]) 4646{ 4647 const MWL_HAL_CHANNELINFO *ci; 4648 4649 /* 4650 * Use the channel info from the hal to craft the 4651 * channel list. Note that we pass back an unsorted 4652 * list; the caller is required to sort it for us 4653 * (if desired). 4654 */ 4655 *nchans = 0; 4656 if (mwl_hal_getchannelinfo(sc->sc_mh, 4657 MWL_FREQ_BAND_2DOT4GHZ, MWL_CH_20_MHz_WIDTH, &ci) == 0) 4658 addchannels(chans, maxchans, nchans, ci, IEEE80211_CHAN_HTG); 4659 if (mwl_hal_getchannelinfo(sc->sc_mh, 4660 MWL_FREQ_BAND_5GHZ, MWL_CH_20_MHz_WIDTH, &ci) == 0) 4661 addchannels(chans, maxchans, nchans, ci, IEEE80211_CHAN_HTA); 4662 if (mwl_hal_getchannelinfo(sc->sc_mh, 4663 MWL_FREQ_BAND_2DOT4GHZ, MWL_CH_40_MHz_WIDTH, &ci) == 0) 4664 addht40channels(chans, maxchans, nchans, ci, IEEE80211_CHAN_HTG); 4665 if (mwl_hal_getchannelinfo(sc->sc_mh, 4666 MWL_FREQ_BAND_5GHZ, MWL_CH_40_MHz_WIDTH, &ci) == 0) 4667 addht40channels(chans, maxchans, nchans, ci, IEEE80211_CHAN_HTA); 4668} 4669 4670static void 4671mwl_getradiocaps(struct ieee80211com *ic, 4672 int maxchans, int *nchans, struct ieee80211_channel chans[]) 4673{ 4674 struct mwl_softc *sc = ic->ic_ifp->if_softc; 4675 4676 getchannels(sc, maxchans, nchans, chans); 4677} 4678 4679static int 4680mwl_getchannels(struct mwl_softc *sc) 4681{ 4682 struct ifnet *ifp = sc->sc_ifp; 4683 struct ieee80211com *ic = ifp->if_l2com; 4684 4685 /* 4686 * Use the channel info from the hal to craft the 4687 * channel list for net80211. Note that we pass up 4688 * an unsorted list; net80211 will sort it for us. 4689 */ 4690 memset(ic->ic_channels, 0, sizeof(ic->ic_channels)); 4691 ic->ic_nchans = 0; 4692 getchannels(sc, IEEE80211_CHAN_MAX, &ic->ic_nchans, ic->ic_channels); 4693 4694 ic->ic_regdomain.regdomain = SKU_DEBUG; 4695 ic->ic_regdomain.country = CTRY_DEFAULT; 4696 ic->ic_regdomain.location = 'I'; 4697 ic->ic_regdomain.isocc[0] = ' '; /* XXX? */ 4698 ic->ic_regdomain.isocc[1] = ' '; 4699 return (ic->ic_nchans == 0 ? EIO : 0); 4700} 4701#undef IEEE80211_CHAN_HTA 4702#undef IEEE80211_CHAN_HTG 4703 4704#ifdef MWL_DEBUG 4705static void 4706mwl_printrxbuf(const struct mwl_rxbuf *bf, u_int ix) 4707{ 4708 const struct mwl_rxdesc *ds = bf->bf_desc; 4709 uint32_t status = le32toh(ds->Status); 4710 4711 printf("R[%2u] (DS.V:%p DS.P:0x%jx) NEXT:%08x DATA:%08x RC:%02x%s\n" 4712 " STAT:%02x LEN:%04x RSSI:%02x CHAN:%02x RATE:%02x QOS:%04x HT:%04x\n", 4713 ix, ds, (uintmax_t)bf->bf_daddr, le32toh(ds->pPhysNext), 4714 le32toh(ds->pPhysBuffData), 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 4721static void 4722mwl_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:0x%jx)\n", ds, (uintmax_t)bf->bf_daddr); 4729 printf(" NEXT:%08x DATA:%08x LEN:%04x STAT:%08x%s\n", 4730 le32toh(ds->pPhysNext), 4731 le32toh(ds->PktPtr), le16toh(ds->PktLen), status, 4732 status & EAGLE_TXD_STATUS_USED ? 4733 "" : (status & 3) != 0 ? " *" : " !"); 4734 printf(" RATE:%02x PRI:%x QOS:%04x SAP:%08x FORMAT:%04x\n", 4735 ds->DataRate, ds->TxPriority, le16toh(ds->QosCtrl), 4736 le32toh(ds->SapPktInfo), le16toh(ds->Format)); 4737#if MWL_TXDESC > 1 4738 printf(" MULTIFRAMES:%u LEN:%04x %04x %04x %04x %04x %04x\n" 4739 , le32toh(ds->multiframes) 4740 , le16toh(ds->PktLenArray[0]), le16toh(ds->PktLenArray[1]) 4741 , le16toh(ds->PktLenArray[2]), le16toh(ds->PktLenArray[3]) 4742 , le16toh(ds->PktLenArray[4]), le16toh(ds->PktLenArray[5]) 4743 ); 4744 printf(" DATA:%08x %08x %08x %08x %08x %08x\n" 4745 , le32toh(ds->PktPtrArray[0]), le32toh(ds->PktPtrArray[1]) 4746 , le32toh(ds->PktPtrArray[2]), le32toh(ds->PktPtrArray[3]) 4747 , le32toh(ds->PktPtrArray[4]), le32toh(ds->PktPtrArray[5]) 4748 ); 4749#endif 4750#if 0 4751{ const uint8_t *cp = (const uint8_t *) ds; 4752 int i; 4753 for (i = 0; i < sizeof(struct mwl_txdesc); i++) { 4754 printf("%02x ", cp[i]); 4755 if (((i+1) % 16) == 0) 4756 printf("\n"); 4757 } 4758 printf("\n"); 4759} 4760#endif 4761} 4762#endif /* MWL_DEBUG */ 4763 4764#if 0 4765static void 4766mwl_txq_dump(struct mwl_txq *txq) 4767{ 4768 struct mwl_txbuf *bf; 4769 int i = 0; 4770 4771 MWL_TXQ_LOCK(txq); 4772 STAILQ_FOREACH(bf, &txq->active, bf_list) { 4773 struct mwl_txdesc *ds = bf->bf_desc; 4774 MWL_TXDESC_SYNC(txq, ds, 4775 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 4776#ifdef MWL_DEBUG 4777 mwl_printtxbuf(bf, txq->qnum, i); 4778#endif 4779 i++; 4780 } 4781 MWL_TXQ_UNLOCK(txq); 4782} 4783#endif 4784 4785static void 4786mwl_watchdog(void *arg) 4787{ 4788 struct mwl_softc *sc; 4789 struct ifnet *ifp; 4790 4791 sc = arg; 4792 callout_reset(&sc->sc_watchdog, hz, mwl_watchdog, sc); 4793 if (sc->sc_tx_timer == 0 || --sc->sc_tx_timer > 0) 4794 return; 4795 4796 ifp = sc->sc_ifp; 4797 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) && !sc->sc_invalid) { 4798 if (mwl_hal_setkeepalive(sc->sc_mh)) 4799 if_printf(ifp, "transmit timeout (firmware hung?)\n"); 4800 else 4801 if_printf(ifp, "transmit timeout\n"); 4802#if 0 4803 mwl_reset(ifp); 4804mwl_txq_dump(&sc->sc_txq[0]);/*XXX*/ 4805#endif 4806 ifp->if_oerrors++; 4807 sc->sc_stats.mst_watchdog++; 4808 } 4809} 4810 4811#ifdef MWL_DIAGAPI 4812/* 4813 * Diagnostic interface to the HAL. This is used by various 4814 * tools to do things like retrieve register contents for 4815 * debugging. The mechanism is intentionally opaque so that 4816 * it can change frequently w/o concern for compatiblity. 4817 */ 4818static int 4819mwl_ioctl_diag(struct mwl_softc *sc, struct mwl_diag *md) 4820{ 4821 struct mwl_hal *mh = sc->sc_mh; 4822 u_int id = md->md_id & MWL_DIAG_ID; 4823 void *indata = NULL; 4824 void *outdata = NULL; 4825 u_int32_t insize = md->md_in_size; 4826 u_int32_t outsize = md->md_out_size; 4827 int error = 0; 4828 4829 if (md->md_id & MWL_DIAG_IN) { 4830 /* 4831 * Copy in data. 4832 */ 4833 indata = malloc(insize, M_TEMP, M_NOWAIT); 4834 if (indata == NULL) { 4835 error = ENOMEM; 4836 goto bad; 4837 } 4838 error = copyin(md->md_in_data, indata, insize); 4839 if (error) 4840 goto bad; 4841 } 4842 if (md->md_id & MWL_DIAG_DYN) { 4843 /* 4844 * Allocate a buffer for the results (otherwise the HAL 4845 * returns a pointer to a buffer where we can read the 4846 * results). Note that we depend on the HAL leaving this 4847 * pointer for us to use below in reclaiming the buffer; 4848 * may want to be more defensive. 4849 */ 4850 outdata = malloc(outsize, M_TEMP, M_NOWAIT); 4851 if (outdata == NULL) { 4852 error = ENOMEM; 4853 goto bad; 4854 } 4855 } 4856 if (mwl_hal_getdiagstate(mh, id, indata, insize, &outdata, &outsize)) { 4857 if (outsize < md->md_out_size) 4858 md->md_out_size = outsize; 4859 if (outdata != NULL) 4860 error = copyout(outdata, md->md_out_data, 4861 md->md_out_size); 4862 } else { 4863 error = EINVAL; 4864 } 4865bad: 4866 if ((md->md_id & MWL_DIAG_IN) && indata != NULL) 4867 free(indata, M_TEMP); 4868 if ((md->md_id & MWL_DIAG_DYN) && outdata != NULL) 4869 free(outdata, M_TEMP); 4870 return error; 4871} 4872 4873static int 4874mwl_ioctl_reset(struct mwl_softc *sc, struct mwl_diag *md) 4875{ 4876 struct mwl_hal *mh = sc->sc_mh; 4877 int error; 4878 4879 MWL_LOCK_ASSERT(sc); 4880 4881 if (md->md_id == 0 && mwl_hal_fwload(mh, NULL) != 0) { 4882 device_printf(sc->sc_dev, "unable to load firmware\n"); 4883 return EIO; 4884 } 4885 if (mwl_hal_gethwspecs(mh, &sc->sc_hwspecs) != 0) { 4886 device_printf(sc->sc_dev, "unable to fetch h/w specs\n"); 4887 return EIO; 4888 } 4889 error = mwl_setupdma(sc); 4890 if (error != 0) { 4891 /* NB: mwl_setupdma prints a msg */ 4892 return error; 4893 } 4894 /* 4895 * Reset tx/rx data structures; after reload we must 4896 * re-start the driver's notion of the next xmit/recv. 4897 */ 4898 mwl_draintxq(sc); /* clear pending frames */ 4899 mwl_resettxq(sc); /* rebuild tx q lists */ 4900 sc->sc_rxnext = NULL; /* force rx to start at the list head */ 4901 return 0; 4902} 4903#endif /* MWL_DIAGAPI */ 4904 4905static int 4906mwl_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 4907{ 4908#define IS_RUNNING(ifp) \ 4909 ((ifp->if_flags & IFF_UP) && (ifp->if_drv_flags & IFF_DRV_RUNNING)) 4910 struct mwl_softc *sc = ifp->if_softc; 4911 struct ieee80211com *ic = ifp->if_l2com; 4912 struct ifreq *ifr = (struct ifreq *)data; 4913 int error = 0, startall; 4914 4915 switch (cmd) { 4916 case SIOCSIFFLAGS: 4917 MWL_LOCK(sc); 4918 startall = 0; 4919 if (IS_RUNNING(ifp)) { 4920 /* 4921 * To avoid rescanning another access point, 4922 * do not call mwl_init() here. Instead, 4923 * only reflect promisc mode settings. 4924 */ 4925 mwl_mode_init(sc); 4926 } else if (ifp->if_flags & IFF_UP) { 4927 /* 4928 * Beware of being called during attach/detach 4929 * to reset promiscuous mode. In that case we 4930 * will still be marked UP but not RUNNING. 4931 * However trying to re-init the interface 4932 * is the wrong thing to do as we've already 4933 * torn down much of our state. There's 4934 * probably a better way to deal with this. 4935 */ 4936 if (!sc->sc_invalid) { 4937 mwl_init_locked(sc); /* XXX lose error */ 4938 startall = 1; 4939 } 4940 } else 4941 mwl_stop_locked(ifp, 1); 4942 MWL_UNLOCK(sc); 4943 if (startall) 4944 ieee80211_start_all(ic); 4945 break; 4946 case SIOCGMVSTATS: 4947 mwl_hal_gethwstats(sc->sc_mh, &sc->sc_stats.hw_stats); 4948 /* NB: embed these numbers to get a consistent view */ 4949 sc->sc_stats.mst_tx_packets = ifp->if_opackets; 4950 sc->sc_stats.mst_rx_packets = ifp->if_ipackets; 4951 /* 4952 * NB: Drop the softc lock in case of a page fault; 4953 * we'll accept any potential inconsisentcy in the 4954 * statistics. The alternative is to copy the data 4955 * to a local structure. 4956 */ 4957 return copyout(&sc->sc_stats, 4958 ifr->ifr_data, sizeof (sc->sc_stats)); 4959#ifdef MWL_DIAGAPI 4960 case SIOCGMVDIAG: 4961 /* XXX check privs */ 4962 return mwl_ioctl_diag(sc, (struct mwl_diag *) ifr); 4963 case SIOCGMVRESET: 4964 /* XXX check privs */ 4965 MWL_LOCK(sc); 4966 error = mwl_ioctl_reset(sc,(struct mwl_diag *) ifr); 4967 MWL_UNLOCK(sc); 4968 break; 4969#endif /* MWL_DIAGAPI */ 4970 case SIOCGIFMEDIA: 4971 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 4972 break; 4973 case SIOCGIFADDR: 4974 error = ether_ioctl(ifp, cmd, data); 4975 break; 4976 default: 4977 error = EINVAL; 4978 break; 4979 } 4980 return error; 4981#undef IS_RUNNING 4982} 4983 4984#ifdef MWL_DEBUG 4985static int 4986mwl_sysctl_debug(SYSCTL_HANDLER_ARGS) 4987{ 4988 struct mwl_softc *sc = arg1; 4989 int debug, error; 4990 4991 debug = sc->sc_debug | (mwl_hal_getdebug(sc->sc_mh) << 24); 4992 error = sysctl_handle_int(oidp, &debug, 0, req); 4993 if (error || !req->newptr) 4994 return error; 4995 mwl_hal_setdebug(sc->sc_mh, debug >> 24); 4996 sc->sc_debug = debug & 0x00ffffff; 4997 return 0; 4998} 4999#endif /* MWL_DEBUG */ 5000 5001static void 5002mwl_sysctlattach(struct mwl_softc *sc) 5003{ 5004#ifdef MWL_DEBUG 5005 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 5006 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 5007 5008 sc->sc_debug = mwl_debug; 5009 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 5010 "debug", CTLTYPE_INT | CTLFLAG_RW, sc, 0, 5011 mwl_sysctl_debug, "I", "control debugging printfs"); 5012#endif 5013} 5014 5015/* 5016 * Announce various information on device/driver attach. 5017 */ 5018static void 5019mwl_announce(struct mwl_softc *sc) 5020{ 5021 struct ifnet *ifp = sc->sc_ifp; 5022 5023 if_printf(ifp, "Rev A%d hardware, v%d.%d.%d.%d firmware (regioncode %d)\n", 5024 sc->sc_hwspecs.hwVersion, 5025 (sc->sc_hwspecs.fwReleaseNumber>>24) & 0xff, 5026 (sc->sc_hwspecs.fwReleaseNumber>>16) & 0xff, 5027 (sc->sc_hwspecs.fwReleaseNumber>>8) & 0xff, 5028 (sc->sc_hwspecs.fwReleaseNumber>>0) & 0xff, 5029 sc->sc_hwspecs.regionCode); 5030 sc->sc_fwrelease = sc->sc_hwspecs.fwReleaseNumber; 5031 5032 if (bootverbose) { 5033 int i; 5034 for (i = 0; i <= WME_AC_VO; i++) { 5035 struct mwl_txq *txq = sc->sc_ac2q[i]; 5036 if_printf(ifp, "Use hw queue %u for %s traffic\n", 5037 txq->qnum, ieee80211_wme_acnames[i]); 5038 } 5039 } 5040 if (bootverbose || mwl_rxdesc != MWL_RXDESC) 5041 if_printf(ifp, "using %u rx descriptors\n", mwl_rxdesc); 5042 if (bootverbose || mwl_rxbuf != MWL_RXBUF) 5043 if_printf(ifp, "using %u rx buffers\n", mwl_rxbuf); 5044 if (bootverbose || mwl_txbuf != MWL_TXBUF) 5045 if_printf(ifp, "using %u tx buffers\n", mwl_txbuf); 5046 if (bootverbose && mwl_hal_ismbsscapable(sc->sc_mh)) 5047 if_printf(ifp, "multi-bss support\n"); 5048#ifdef MWL_TX_NODROP 5049 if (bootverbose) 5050 if_printf(ifp, "no tx drop\n"); 5051#endif 5052} 5053