2 * Copyright (c) 2008 Weongyo Jeong <weongyo@freebsd.org>
3 * Copyright (c) 2007 Marvell Semiconductor, Inc.
4 * Copyright (c) 2007 Sam Leffler, Errno Consulting
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer,
12 * without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
15 * redistribution must be conditioned upon including a substantially
16 * similar Disclaimer requirement for further binary redistribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
22 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
23 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
24 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
27 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
29 * THE POSSIBILITY OF SUCH DAMAGES.
32 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
39 #include <sys/param.h>
40 #include <sys/endian.h>
41 #include <sys/kernel.h>
42 #include <sys/socket.h>
43 #include <sys/sockio.h>
44 #include <sys/sysctl.h>
45 #include <sys/taskqueue.h>
47 #include <machine/bus.h>
51 #include <net/if_var.h>
52 #include <net/if_dl.h>
53 #include <net/if_media.h>
54 #include <net/if_types.h>
55 #include <net/ethernet.h>
57 #include <net80211/ieee80211_var.h>
58 #include <net80211/ieee80211_regdomain.h>
62 #include <dev/malo/if_malo.h>
64 SYSCTL_NODE(_hw, OID_AUTO, malo, CTLFLAG_RD, 0,
65 "Marvell 88w8335 driver parameters");
67 static int malo_txcoalesce = 8; /* # tx pkts to q before poking f/w*/
68 SYSCTL_INT(_hw_malo, OID_AUTO, txcoalesce, CTLFLAG_RW, &malo_txcoalesce,
69 0, "tx buffers to send at once");
70 TUNABLE_INT("hw.malo.txcoalesce", &malo_txcoalesce);
71 static int malo_rxbuf = MALO_RXBUF; /* # rx buffers to allocate */
72 SYSCTL_INT(_hw_malo, OID_AUTO, rxbuf, CTLFLAG_RW, &malo_rxbuf,
73 0, "rx buffers allocated");
74 TUNABLE_INT("hw.malo.rxbuf", &malo_rxbuf);
75 static int malo_rxquota = MALO_RXBUF; /* # max buffers to process */
76 SYSCTL_INT(_hw_malo, OID_AUTO, rxquota, CTLFLAG_RW, &malo_rxquota,
77 0, "max rx buffers to process per interrupt");
78 TUNABLE_INT("hw.malo.rxquota", &malo_rxquota);
79 static int malo_txbuf = MALO_TXBUF; /* # tx buffers to allocate */
80 SYSCTL_INT(_hw_malo, OID_AUTO, txbuf, CTLFLAG_RW, &malo_txbuf,
81 0, "tx buffers allocated");
82 TUNABLE_INT("hw.malo.txbuf", &malo_txbuf);
85 static int malo_debug = 0;
86 SYSCTL_INT(_hw_malo, OID_AUTO, debug, CTLFLAG_RW, &malo_debug,
87 0, "control debugging printfs");
88 TUNABLE_INT("hw.malo.debug", &malo_debug);
90 MALO_DEBUG_XMIT = 0x00000001, /* basic xmit operation */
91 MALO_DEBUG_XMIT_DESC = 0x00000002, /* xmit descriptors */
92 MALO_DEBUG_RECV = 0x00000004, /* basic recv operation */
93 MALO_DEBUG_RECV_DESC = 0x00000008, /* recv descriptors */
94 MALO_DEBUG_RESET = 0x00000010, /* reset processing */
95 MALO_DEBUG_INTR = 0x00000040, /* ISR */
96 MALO_DEBUG_TX_PROC = 0x00000080, /* tx ISR proc */
97 MALO_DEBUG_RX_PROC = 0x00000100, /* rx ISR proc */
98 MALO_DEBUG_STATE = 0x00000400, /* 802.11 state transitions */
99 MALO_DEBUG_NODE = 0x00000800, /* node management */
100 MALO_DEBUG_RECV_ALL = 0x00001000, /* trace all frames (beacons) */
101 MALO_DEBUG_FW = 0x00008000, /* firmware */
102 MALO_DEBUG_ANY = 0xffffffff
104 #define IS_BEACON(wh) \
105 ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK | \
106 IEEE80211_FC0_SUBTYPE_MASK)) == \
107 (IEEE80211_FC0_TYPE_MGT|IEEE80211_FC0_SUBTYPE_BEACON))
108 #define IFF_DUMPPKTS_RECV(sc, wh) \
109 (((sc->malo_debug & MALO_DEBUG_RECV) && \
110 ((sc->malo_debug & MALO_DEBUG_RECV_ALL) || !IS_BEACON(wh))) || \
111 (sc->malo_ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == \
112 (IFF_DEBUG|IFF_LINK2))
113 #define IFF_DUMPPKTS_XMIT(sc) \
114 ((sc->malo_debug & MALO_DEBUG_XMIT) || \
115 (sc->malo_ifp->if_flags & (IFF_DEBUG | IFF_LINK2)) == \
116 (IFF_DEBUG | IFF_LINK2))
117 #define DPRINTF(sc, m, fmt, ...) do { \
118 if (sc->malo_debug & (m)) \
119 printf(fmt, __VA_ARGS__); \
122 #define DPRINTF(sc, m, fmt, ...) do { \
127 static MALLOC_DEFINE(M_MALODEV, "malodev", "malo driver dma buffers");
129 static struct ieee80211vap *malo_vap_create(struct ieee80211com *,
130 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
131 const uint8_t [IEEE80211_ADDR_LEN],
132 const uint8_t [IEEE80211_ADDR_LEN]);
133 static void malo_vap_delete(struct ieee80211vap *);
134 static int malo_dma_setup(struct malo_softc *);
135 static int malo_setup_hwdma(struct malo_softc *);
136 static void malo_txq_init(struct malo_softc *, struct malo_txq *, int);
137 static void malo_tx_cleanupq(struct malo_softc *, struct malo_txq *);
138 static void malo_start(struct ifnet *);
139 static void malo_watchdog(void *);
140 static int malo_ioctl(struct ifnet *, u_long, caddr_t);
141 static void malo_updateslot(struct ifnet *);
142 static int malo_newstate(struct ieee80211vap *, enum ieee80211_state, int);
143 static void malo_scan_start(struct ieee80211com *);
144 static void malo_scan_end(struct ieee80211com *);
145 static void malo_set_channel(struct ieee80211com *);
146 static int malo_raw_xmit(struct ieee80211_node *, struct mbuf *,
147 const struct ieee80211_bpf_params *);
148 static void malo_sysctlattach(struct malo_softc *);
149 static void malo_announce(struct malo_softc *);
150 static void malo_dma_cleanup(struct malo_softc *);
151 static void malo_stop_locked(struct ifnet *, int);
152 static int malo_chan_set(struct malo_softc *, struct ieee80211_channel *);
153 static int malo_mode_init(struct malo_softc *);
154 static void malo_tx_proc(void *, int);
155 static void malo_rx_proc(void *, int);
156 static void malo_init(void *);
159 * Read/Write shorthands for accesses to BAR 0. Note that all BAR 1
160 * operations are done in the "hal" except getting H/W MAC address at
161 * malo_attach and there should be no reference to them here.
164 malo_bar0_read4(struct malo_softc *sc, bus_size_t off)
166 return bus_space_read_4(sc->malo_io0t, sc->malo_io0h, off);
170 malo_bar0_write4(struct malo_softc *sc, bus_size_t off, uint32_t val)
172 DPRINTF(sc, MALO_DEBUG_FW, "%s: off 0x%jx val 0x%x\n",
173 __func__, (intmax_t)off, val);
175 bus_space_write_4(sc->malo_io0t, sc->malo_io0h, off, val);
179 malo_attach(uint16_t devid, struct malo_softc *sc)
182 struct ieee80211com *ic;
187 ifp = sc->malo_ifp = if_alloc(IFT_IEEE80211);
189 device_printf(sc->malo_dev, "can not if_alloc()\n");
195 callout_init_mtx(&sc->malo_watchdog_timer, &sc->malo_mtx, 0);
197 /* set these up early for if_printf use */
198 if_initname(ifp, device_get_name(sc->malo_dev),
199 device_get_unit(sc->malo_dev));
201 mh = malo_hal_attach(sc->malo_dev, devid,
202 sc->malo_io1h, sc->malo_io1t, sc->malo_dmat);
204 if_printf(ifp, "unable to attach HAL\n");
211 * Load firmware so we can get setup. We arbitrarily pick station
212 * firmware; we'll re-load firmware as needed so setting up
213 * the wrong mode isn't a big deal.
215 error = malo_hal_fwload(mh, "malo8335-h", "malo8335-m");
217 if_printf(ifp, "unable to setup firmware\n");
220 /* XXX gethwspecs() extracts correct informations? not maybe! */
221 error = malo_hal_gethwspecs(mh, &sc->malo_hwspecs);
223 if_printf(ifp, "unable to fetch h/w specs\n");
227 DPRINTF(sc, MALO_DEBUG_FW,
228 "malo_hal_gethwspecs: hwversion 0x%x hostif 0x%x"
229 "maxnum_wcb 0x%x maxnum_mcaddr 0x%x maxnum_tx_wcb 0x%x"
230 "regioncode 0x%x num_antenna 0x%x fw_releasenum 0x%x"
231 "wcbbase0 0x%x rxdesc_read 0x%x rxdesc_write 0x%x"
232 "ul_fw_awakecookie 0x%x w[4] = %x %x %x %x",
233 sc->malo_hwspecs.hwversion,
234 sc->malo_hwspecs.hostinterface, sc->malo_hwspecs.maxnum_wcb,
235 sc->malo_hwspecs.maxnum_mcaddr, sc->malo_hwspecs.maxnum_tx_wcb,
236 sc->malo_hwspecs.regioncode, sc->malo_hwspecs.num_antenna,
237 sc->malo_hwspecs.fw_releasenum, sc->malo_hwspecs.wcbbase0,
238 sc->malo_hwspecs.rxdesc_read, sc->malo_hwspecs.rxdesc_write,
239 sc->malo_hwspecs.ul_fw_awakecookie,
240 sc->malo_hwspecs.wcbbase[0], sc->malo_hwspecs.wcbbase[1],
241 sc->malo_hwspecs.wcbbase[2], sc->malo_hwspecs.wcbbase[3]);
243 /* NB: firmware looks that it does not export regdomain info API. */
245 setbit(&bands, IEEE80211_MODE_11B);
246 setbit(&bands, IEEE80211_MODE_11G);
247 ieee80211_init_channels(ic, NULL, &bands);
249 sc->malo_txantenna = 0x2; /* h/w default */
250 sc->malo_rxantenna = 0xffff; /* h/w default */
253 * Allocate tx + rx descriptors and populate the lists.
254 * We immediately push the information to the firmware
255 * as otherwise it gets upset.
257 error = malo_dma_setup(sc);
259 if_printf(ifp, "failed to setup descriptors: %d\n", error);
262 error = malo_setup_hwdma(sc); /* push to firmware */
263 if (error != 0) /* NB: malo_setupdma prints msg */
266 sc->malo_tq = taskqueue_create_fast("malo_taskq", M_NOWAIT,
267 taskqueue_thread_enqueue, &sc->malo_tq);
268 taskqueue_start_threads(&sc->malo_tq, 1, PI_NET,
269 "%s taskq", ifp->if_xname);
271 TASK_INIT(&sc->malo_rxtask, 0, malo_rx_proc, sc);
272 TASK_INIT(&sc->malo_txtask, 0, malo_tx_proc, sc);
275 ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST;
276 ifp->if_start = malo_start;
277 ifp->if_ioctl = malo_ioctl;
278 ifp->if_init = malo_init;
279 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
280 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
281 IFQ_SET_READY(&ifp->if_snd);
284 /* XXX not right but it's not used anywhere important */
285 ic->ic_phytype = IEEE80211_T_OFDM;
286 ic->ic_opmode = IEEE80211_M_STA;
288 IEEE80211_C_STA /* station mode supported */
289 | IEEE80211_C_BGSCAN /* capable of bg scanning */
290 | IEEE80211_C_MONITOR /* monitor mode */
291 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
292 | IEEE80211_C_SHSLOT /* short slot time supported */
293 | IEEE80211_C_TXPMGT /* capable of txpow mgt */
294 | IEEE80211_C_WPA /* capable of WPA1+WPA2 */
298 * Transmit requires space in the packet for a special format transmit
299 * record and optional padding between this record and the payload.
300 * Ask the net80211 layer to arrange this when encapsulating
301 * packets so we can add it efficiently.
303 ic->ic_headroom = sizeof(struct malo_txrec) -
304 sizeof(struct ieee80211_frame);
306 /* call MI attach routine. */
307 ieee80211_ifattach(ic, sc->malo_hwspecs.macaddr);
308 /* override default methods */
309 ic->ic_vap_create = malo_vap_create;
310 ic->ic_vap_delete = malo_vap_delete;
311 ic->ic_raw_xmit = malo_raw_xmit;
312 ic->ic_updateslot = malo_updateslot;
314 ic->ic_scan_start = malo_scan_start;
315 ic->ic_scan_end = malo_scan_end;
316 ic->ic_set_channel = malo_set_channel;
318 sc->malo_invalid = 0; /* ready to go, enable int handling */
320 ieee80211_radiotap_attach(ic,
321 &sc->malo_tx_th.wt_ihdr, sizeof(sc->malo_tx_th),
322 MALO_TX_RADIOTAP_PRESENT,
323 &sc->malo_rx_th.wr_ihdr, sizeof(sc->malo_rx_th),
324 MALO_RX_RADIOTAP_PRESENT);
327 * Setup dynamic sysctl's.
329 malo_sysctlattach(sc);
332 ieee80211_announce(ic);
337 malo_dma_cleanup(sc);
342 sc->malo_invalid = 1;
347 static struct ieee80211vap *
348 malo_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
349 enum ieee80211_opmode opmode, int flags,
350 const uint8_t bssid[IEEE80211_ADDR_LEN],
351 const uint8_t mac[IEEE80211_ADDR_LEN])
353 struct ifnet *ifp = ic->ic_ifp;
354 struct malo_vap *mvp;
355 struct ieee80211vap *vap;
357 if (!TAILQ_EMPTY(&ic->ic_vaps)) {
358 if_printf(ifp, "multiple vaps not supported\n");
362 case IEEE80211_M_STA:
363 if (opmode == IEEE80211_M_STA)
364 flags |= IEEE80211_CLONE_NOBEACONS;
366 case IEEE80211_M_MONITOR:
369 if_printf(ifp, "%s mode not supported\n",
370 ieee80211_opmode_name[opmode]);
371 return NULL; /* unsupported */
373 mvp = (struct malo_vap *) malloc(sizeof(struct malo_vap),
374 M_80211_VAP, M_NOWAIT | M_ZERO);
376 if_printf(ifp, "cannot allocate vap state block\n");
379 vap = &mvp->malo_vap;
380 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
382 /* override state transition machine */
383 mvp->malo_newstate = vap->iv_newstate;
384 vap->iv_newstate = malo_newstate;
387 ieee80211_vap_attach(vap,
388 ieee80211_media_change, ieee80211_media_status);
389 ic->ic_opmode = opmode;
394 malo_vap_delete(struct ieee80211vap *vap)
396 struct malo_vap *mvp = MALO_VAP(vap);
398 ieee80211_vap_detach(vap);
399 free(mvp, M_80211_VAP);
405 struct malo_softc *sc = arg;
406 struct malo_hal *mh = sc->malo_mh;
409 if (sc->malo_invalid) {
411 * The hardware is not ready/present, don't touch anything.
412 * Note this can happen early on if the IRQ is shared.
414 DPRINTF(sc, MALO_DEBUG_ANY, "%s: invalid; ignored\n", __func__);
415 return (FILTER_STRAY);
419 * Figure out the reason(s) for the interrupt.
421 malo_hal_getisr(mh, &status); /* NB: clears ISR too */
422 if (status == 0) /* must be a shared irq */
423 return (FILTER_STRAY);
425 DPRINTF(sc, MALO_DEBUG_INTR, "%s: status 0x%x imask 0x%x\n",
426 __func__, status, sc->malo_imask);
428 if (status & MALO_A2HRIC_BIT_RX_RDY)
429 taskqueue_enqueue_fast(sc->malo_tq, &sc->malo_rxtask);
430 if (status & MALO_A2HRIC_BIT_TX_DONE)
431 taskqueue_enqueue_fast(sc->malo_tq, &sc->malo_txtask);
432 if (status & MALO_A2HRIC_BIT_OPC_DONE)
433 malo_hal_cmddone(mh);
434 if (status & MALO_A2HRIC_BIT_MAC_EVENT)
436 if (status & MALO_A2HRIC_BIT_RX_PROBLEM)
438 if (status & MALO_A2HRIC_BIT_ICV_ERROR) {
440 sc->malo_stats.mst_rx_badtkipicv++;
443 if (((status | sc->malo_imask) ^ sc->malo_imask) != 0)
444 DPRINTF(sc, MALO_DEBUG_INTR,
445 "%s: can't handle interrupt status 0x%x\n",
448 return (FILTER_HANDLED);
452 malo_load_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
454 bus_addr_t *paddr = (bus_addr_t*) arg;
456 KASSERT(error == 0, ("error %u on bus_dma callback", error));
458 *paddr = segs->ds_addr;
462 malo_desc_setup(struct malo_softc *sc, const char *name,
463 struct malo_descdma *dd,
464 int nbuf, size_t bufsize, int ndesc, size_t descsize)
467 struct ifnet *ifp = sc->malo_ifp;
470 DPRINTF(sc, MALO_DEBUG_RESET,
471 "%s: %s DMA: %u bufs (%ju) %u desc/buf (%ju)\n",
472 __func__, name, nbuf, (uintmax_t) bufsize,
473 ndesc, (uintmax_t) descsize);
476 dd->dd_desc_len = nbuf * ndesc * descsize;
479 * Setup DMA descriptor area.
481 error = bus_dma_tag_create(bus_get_dma_tag(sc->malo_dev),/* parent */
482 PAGE_SIZE, 0, /* alignment, bounds */
483 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
484 BUS_SPACE_MAXADDR, /* highaddr */
485 NULL, NULL, /* filter, filterarg */
486 dd->dd_desc_len, /* maxsize */
488 dd->dd_desc_len, /* maxsegsize */
489 BUS_DMA_ALLOCNOW, /* flags */
494 if_printf(ifp, "cannot allocate %s DMA tag\n", dd->dd_name);
498 /* allocate descriptors */
499 error = bus_dmamap_create(dd->dd_dmat, BUS_DMA_NOWAIT, &dd->dd_dmamap);
501 if_printf(ifp, "unable to create dmamap for %s descriptors, "
502 "error %u\n", dd->dd_name, error);
506 error = bus_dmamem_alloc(dd->dd_dmat, (void**) &dd->dd_desc,
507 BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &dd->dd_dmamap);
509 if_printf(ifp, "unable to alloc memory for %u %s descriptors, "
510 "error %u\n", nbuf * ndesc, dd->dd_name, error);
514 error = bus_dmamap_load(dd->dd_dmat, dd->dd_dmamap,
515 dd->dd_desc, dd->dd_desc_len,
516 malo_load_cb, &dd->dd_desc_paddr, BUS_DMA_NOWAIT);
518 if_printf(ifp, "unable to map %s descriptors, error %u\n",
524 memset(ds, 0, dd->dd_desc_len);
525 DPRINTF(sc, MALO_DEBUG_RESET, "%s: %s DMA map: %p (%lu) -> %p (%lu)\n",
526 __func__, dd->dd_name, ds, (u_long) dd->dd_desc_len,
527 (caddr_t) dd->dd_desc_paddr, /*XXX*/ (u_long) dd->dd_desc_len);
531 bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap);
533 bus_dmamap_destroy(dd->dd_dmat, dd->dd_dmamap);
535 bus_dma_tag_destroy(dd->dd_dmat);
536 memset(dd, 0, sizeof(*dd));
540 #define DS2PHYS(_dd, _ds) \
541 ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
544 malo_rxdma_setup(struct malo_softc *sc)
546 struct ifnet *ifp = sc->malo_ifp;
548 struct malo_rxbuf *bf;
549 struct malo_rxdesc *ds;
551 error = malo_desc_setup(sc, "rx", &sc->malo_rxdma,
552 malo_rxbuf, sizeof(struct malo_rxbuf),
553 1, sizeof(struct malo_rxdesc));
558 * Allocate rx buffers and set them up.
560 bsize = malo_rxbuf * sizeof(struct malo_rxbuf);
561 bf = malloc(bsize, M_MALODEV, M_NOWAIT | M_ZERO);
563 if_printf(ifp, "malloc of %u rx buffers failed\n", bsize);
566 sc->malo_rxdma.dd_bufptr = bf;
568 STAILQ_INIT(&sc->malo_rxbuf);
569 ds = sc->malo_rxdma.dd_desc;
570 for (i = 0; i < malo_rxbuf; i++, bf++, ds++) {
572 bf->bf_daddr = DS2PHYS(&sc->malo_rxdma, ds);
573 error = bus_dmamap_create(sc->malo_dmat, BUS_DMA_NOWAIT,
576 if_printf(ifp, "%s: unable to dmamap for rx buffer, "
577 "error %d\n", __func__, error);
580 /* NB: tail is intentional to preserve descriptor order */
581 STAILQ_INSERT_TAIL(&sc->malo_rxbuf, bf, bf_list);
587 malo_txdma_setup(struct malo_softc *sc, struct malo_txq *txq)
589 struct ifnet *ifp = sc->malo_ifp;
591 struct malo_txbuf *bf;
592 struct malo_txdesc *ds;
594 error = malo_desc_setup(sc, "tx", &txq->dma,
595 malo_txbuf, sizeof(struct malo_txbuf),
596 MALO_TXDESC, sizeof(struct malo_txdesc));
600 /* allocate and setup tx buffers */
601 bsize = malo_txbuf * sizeof(struct malo_txbuf);
602 bf = malloc(bsize, M_MALODEV, M_NOWAIT | M_ZERO);
604 if_printf(ifp, "malloc of %u tx buffers failed\n",
608 txq->dma.dd_bufptr = bf;
610 STAILQ_INIT(&txq->free);
612 ds = txq->dma.dd_desc;
613 for (i = 0; i < malo_txbuf; i++, bf++, ds += MALO_TXDESC) {
615 bf->bf_daddr = DS2PHYS(&txq->dma, ds);
616 error = bus_dmamap_create(sc->malo_dmat, BUS_DMA_NOWAIT,
619 if_printf(ifp, "unable to create dmamap for tx "
620 "buffer %u, error %u\n", i, error);
623 STAILQ_INSERT_TAIL(&txq->free, bf, bf_list);
631 malo_desc_cleanup(struct malo_softc *sc, struct malo_descdma *dd)
633 bus_dmamap_unload(dd->dd_dmat, dd->dd_dmamap);
634 bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap);
635 bus_dmamap_destroy(dd->dd_dmat, dd->dd_dmamap);
636 bus_dma_tag_destroy(dd->dd_dmat);
638 memset(dd, 0, sizeof(*dd));
642 malo_rxdma_cleanup(struct malo_softc *sc)
644 struct malo_rxbuf *bf;
646 STAILQ_FOREACH(bf, &sc->malo_rxbuf, bf_list) {
647 if (bf->bf_m != NULL) {
651 if (bf->bf_dmamap != NULL) {
652 bus_dmamap_destroy(sc->malo_dmat, bf->bf_dmamap);
653 bf->bf_dmamap = NULL;
656 STAILQ_INIT(&sc->malo_rxbuf);
657 if (sc->malo_rxdma.dd_bufptr != NULL) {
658 free(sc->malo_rxdma.dd_bufptr, M_MALODEV);
659 sc->malo_rxdma.dd_bufptr = NULL;
661 if (sc->malo_rxdma.dd_desc_len != 0)
662 malo_desc_cleanup(sc, &sc->malo_rxdma);
666 malo_txdma_cleanup(struct malo_softc *sc, struct malo_txq *txq)
668 struct malo_txbuf *bf;
669 struct ieee80211_node *ni;
671 STAILQ_FOREACH(bf, &txq->free, bf_list) {
672 if (bf->bf_m != NULL) {
680 * Reclaim node reference.
682 ieee80211_free_node(ni);
684 if (bf->bf_dmamap != NULL) {
685 bus_dmamap_destroy(sc->malo_dmat, bf->bf_dmamap);
686 bf->bf_dmamap = NULL;
689 STAILQ_INIT(&txq->free);
691 if (txq->dma.dd_bufptr != NULL) {
692 free(txq->dma.dd_bufptr, M_MALODEV);
693 txq->dma.dd_bufptr = NULL;
695 if (txq->dma.dd_desc_len != 0)
696 malo_desc_cleanup(sc, &txq->dma);
700 malo_dma_cleanup(struct malo_softc *sc)
704 for (i = 0; i < MALO_NUM_TX_QUEUES; i++)
705 malo_txdma_cleanup(sc, &sc->malo_txq[i]);
707 malo_rxdma_cleanup(sc);
711 malo_dma_setup(struct malo_softc *sc)
715 /* rxdma initializing. */
716 error = malo_rxdma_setup(sc);
720 /* NB: we just have 1 tx queue now. */
721 for (i = 0; i < MALO_NUM_TX_QUEUES; i++) {
722 error = malo_txdma_setup(sc, &sc->malo_txq[i]);
724 malo_dma_cleanup(sc);
729 malo_txq_init(sc, &sc->malo_txq[i], i);
736 malo_hal_set_rxtxdma(struct malo_softc *sc)
740 malo_bar0_write4(sc, sc->malo_hwspecs.rxdesc_read,
741 sc->malo_hwdma.rxdesc_read);
742 malo_bar0_write4(sc, sc->malo_hwspecs.rxdesc_write,
743 sc->malo_hwdma.rxdesc_read);
745 for (i = 0; i < MALO_NUM_TX_QUEUES; i++) {
747 sc->malo_hwspecs.wcbbase[i], sc->malo_hwdma.wcbbase[i]);
752 * Inform firmware of our tx/rx dma setup. The BAR 0 writes below are
753 * for compatibility with older firmware. For current firmware we send
754 * this information with a cmd block via malo_hal_sethwdma.
757 malo_setup_hwdma(struct malo_softc *sc)
760 struct malo_txq *txq;
762 sc->malo_hwdma.rxdesc_read = sc->malo_rxdma.dd_desc_paddr;
764 for (i = 0; i < MALO_NUM_TX_QUEUES; i++) {
765 txq = &sc->malo_txq[i];
766 sc->malo_hwdma.wcbbase[i] = txq->dma.dd_desc_paddr;
768 sc->malo_hwdma.maxnum_txwcb = malo_txbuf;
769 sc->malo_hwdma.maxnum_wcb = MALO_NUM_TX_QUEUES;
771 malo_hal_set_rxtxdma(sc);
777 malo_txq_init(struct malo_softc *sc, struct malo_txq *txq, int qnum)
779 struct malo_txbuf *bf, *bn;
780 struct malo_txdesc *ds;
782 MALO_TXQ_LOCK_INIT(sc, txq);
784 txq->txpri = 0; /* XXX */
786 STAILQ_FOREACH(bf, &txq->free, bf_list) {
790 bn = STAILQ_NEXT(bf, bf_list);
792 bn = STAILQ_FIRST(&txq->free);
793 ds->physnext = htole32(bn->bf_daddr);
795 STAILQ_INIT(&txq->active);
799 * Reclaim resources for a setup queue.
802 malo_tx_cleanupq(struct malo_softc *sc, struct malo_txq *txq)
805 MALO_TXQ_LOCK_DESTROY(txq);
809 * Allocate a tx buffer for sending a frame.
811 static struct malo_txbuf *
812 malo_getbuf(struct malo_softc *sc, struct malo_txq *txq)
814 struct malo_txbuf *bf;
817 bf = STAILQ_FIRST(&txq->free);
819 STAILQ_REMOVE_HEAD(&txq->free, bf_list);
822 MALO_TXQ_UNLOCK(txq);
824 DPRINTF(sc, MALO_DEBUG_XMIT,
825 "%s: out of xmit buffers on q %d\n", __func__, txq->qnum);
826 sc->malo_stats.mst_tx_qstop++;
832 malo_tx_dmasetup(struct malo_softc *sc, struct malo_txbuf *bf, struct mbuf *m0)
838 * Load the DMA map so any coalescing is done. This also calculates
839 * the number of descriptors we need.
841 error = bus_dmamap_load_mbuf_sg(sc->malo_dmat, bf->bf_dmamap, m0,
842 bf->bf_segs, &bf->bf_nseg,
844 if (error == EFBIG) {
845 /* XXX packet requires too many descriptors */
846 bf->bf_nseg = MALO_TXDESC + 1;
847 } else if (error != 0) {
848 sc->malo_stats.mst_tx_busdma++;
853 * Discard null packets and check for packets that require too many
854 * TX descriptors. We try to convert the latter to a cluster.
856 if (error == EFBIG) { /* too many desc's, linearize */
857 sc->malo_stats.mst_tx_linear++;
858 m = m_defrag(m0, M_NOWAIT);
861 sc->malo_stats.mst_tx_nombuf++;
865 error = bus_dmamap_load_mbuf_sg(sc->malo_dmat, bf->bf_dmamap, m0,
866 bf->bf_segs, &bf->bf_nseg,
869 sc->malo_stats.mst_tx_busdma++;
873 KASSERT(bf->bf_nseg <= MALO_TXDESC,
874 ("too many segments after defrag; nseg %u", bf->bf_nseg));
875 } else if (bf->bf_nseg == 0) { /* null packet, discard */
876 sc->malo_stats.mst_tx_nodata++;
880 DPRINTF(sc, MALO_DEBUG_XMIT, "%s: m %p len %u\n",
881 __func__, m0, m0->m_pkthdr.len);
882 bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE);
890 malo_printrxbuf(const struct malo_rxbuf *bf, u_int ix)
892 const struct malo_rxdesc *ds = bf->bf_desc;
893 uint32_t status = le32toh(ds->status);
895 printf("R[%2u] (DS.V:%p DS.P:%p) NEXT:%08x DATA:%08x RC:%02x%s\n"
896 " STAT:%02x LEN:%04x SNR:%02x NF:%02x CHAN:%02x"
897 " RATE:%02x QOS:%04x\n",
898 ix, ds, (const struct malo_desc *)bf->bf_daddr,
899 le32toh(ds->physnext), le32toh(ds->physbuffdata),
901 ds->rxcontrol != MALO_RXD_CTRL_DRIVER_OWN ?
902 "" : (status & MALO_RXD_STATUS_OK) ? " *" : " !",
903 ds->status, le16toh(ds->pktlen), ds->snr, ds->nf, ds->channel,
904 ds->rate, le16toh(ds->qosctrl));
908 malo_printtxbuf(const struct malo_txbuf *bf, u_int qnum, u_int ix)
910 const struct malo_txdesc *ds = bf->bf_desc;
911 uint32_t status = le32toh(ds->status);
913 printf("Q%u[%3u]", qnum, ix);
914 printf(" (DS.V:%p DS.P:%p)\n",
915 ds, (const struct malo_txdesc *)bf->bf_daddr);
916 printf(" NEXT:%08x DATA:%08x LEN:%04x STAT:%08x%s\n",
917 le32toh(ds->physnext),
918 le32toh(ds->pktptr), le16toh(ds->pktlen), status,
919 status & MALO_TXD_STATUS_USED ?
920 "" : (status & 3) != 0 ? " *" : " !");
921 printf(" RATE:%02x PRI:%x QOS:%04x SAP:%08x FORMAT:%04x\n",
922 ds->datarate, ds->txpriority, le16toh(ds->qosctrl),
923 le32toh(ds->sap_pktinfo), le16toh(ds->format));
926 const uint8_t *cp = (const uint8_t *) ds;
928 for (i = 0; i < sizeof(struct malo_txdesc); i++) {
929 printf("%02x ", cp[i]);
930 if (((i+1) % 16) == 0)
937 #endif /* MALO_DEBUG */
940 malo_updatetxrate(struct ieee80211_node *ni, int rix)
942 #define N(x) (sizeof(x)/sizeof(x[0]))
943 static const int ieeerates[] =
944 { 2, 4, 11, 22, 44, 12, 18, 24, 36, 48, 96, 108 };
945 if (rix < N(ieeerates))
946 ni->ni_txrate = ieeerates[rix];
951 malo_fix2rate(int fix_rate)
953 #define N(x) (sizeof(x)/sizeof(x[0]))
954 static const int rates[] =
955 { 2, 4, 11, 22, 12, 18, 24, 36, 48, 96, 108 };
956 return (fix_rate < N(rates) ? rates[fix_rate] : 0);
960 /* idiomatic shorthands: MS = mask+shift, SM = shift+mask */
961 #define MS(v,x) (((v) & x) >> x##_S)
962 #define SM(v,x) (((v) << x##_S) & x)
965 * Process completed xmit descriptors from the specified queue.
968 malo_tx_processq(struct malo_softc *sc, struct malo_txq *txq)
970 struct malo_txbuf *bf;
971 struct malo_txdesc *ds;
972 struct ieee80211_node *ni;
976 DPRINTF(sc, MALO_DEBUG_TX_PROC, "%s: tx queue %u\n",
977 __func__, txq->qnum);
978 for (nreaped = 0;; nreaped++) {
980 bf = STAILQ_FIRST(&txq->active);
982 MALO_TXQ_UNLOCK(txq);
986 MALO_TXDESC_SYNC(txq, ds,
987 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
988 if (ds->status & htole32(MALO_TXD_STATUS_FW_OWNED)) {
989 MALO_TXQ_UNLOCK(txq);
992 STAILQ_REMOVE_HEAD(&txq->active, bf_list);
993 MALO_TXQ_UNLOCK(txq);
996 if (sc->malo_debug & MALO_DEBUG_XMIT_DESC)
997 malo_printtxbuf(bf, txq->qnum, nreaped);
1001 status = le32toh(ds->status);
1002 if (status & MALO_TXD_STATUS_OK) {
1003 uint16_t format = le16toh(ds->format);
1004 uint8_t txant = MS(format, MALO_TXD_ANTENNA);
1006 sc->malo_stats.mst_ant_tx[txant]++;
1007 if (status & MALO_TXD_STATUS_OK_RETRY)
1008 sc->malo_stats.mst_tx_retries++;
1009 if (status & MALO_TXD_STATUS_OK_MORE_RETRY)
1010 sc->malo_stats.mst_tx_mretries++;
1011 malo_updatetxrate(ni, ds->datarate);
1012 sc->malo_stats.mst_tx_rate = ds->datarate;
1014 if (status & MALO_TXD_STATUS_FAILED_LINK_ERROR)
1015 sc->malo_stats.mst_tx_linkerror++;
1016 if (status & MALO_TXD_STATUS_FAILED_XRETRY)
1017 sc->malo_stats.mst_tx_xretries++;
1018 if (status & MALO_TXD_STATUS_FAILED_AGING)
1019 sc->malo_stats.mst_tx_aging++;
1022 * Do any tx complete callback. Note this must
1023 * be done before releasing the node reference.
1024 * XXX no way to figure out if frame was ACK'd
1026 if (bf->bf_m->m_flags & M_TXCB) {
1027 /* XXX strip fw len in case header inspected */
1028 m_adj(bf->bf_m, sizeof(uint16_t));
1029 ieee80211_process_callback(ni, bf->bf_m,
1030 (status & MALO_TXD_STATUS_OK) == 0);
1033 * Reclaim reference to node.
1035 * NB: the node may be reclaimed here if, for example
1036 * this is a DEAUTH message that was sent and the
1037 * node was timed out due to inactivity.
1039 ieee80211_free_node(ni);
1041 ds->status = htole32(MALO_TXD_STATUS_IDLE);
1042 ds->pktlen = htole32(0);
1044 bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap,
1045 BUS_DMASYNC_POSTWRITE);
1046 bus_dmamap_unload(sc->malo_dmat, bf->bf_dmamap);
1052 STAILQ_INSERT_TAIL(&txq->free, bf, bf_list);
1054 MALO_TXQ_UNLOCK(txq);
1060 * Deferred processing of transmit interrupt.
1063 malo_tx_proc(void *arg, int npending)
1065 struct malo_softc *sc = arg;
1066 struct ifnet *ifp = sc->malo_ifp;
1070 * Process each active queue.
1073 for (i = 0; i < MALO_NUM_TX_QUEUES; i++) {
1074 if (!STAILQ_EMPTY(&sc->malo_txq[i].active))
1075 nreaped += malo_tx_processq(sc, &sc->malo_txq[i]);
1079 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1086 malo_tx_start(struct malo_softc *sc, struct ieee80211_node *ni,
1087 struct malo_txbuf *bf, struct mbuf *m0)
1089 #define IEEE80211_DIR_DSTODS(wh) \
1090 ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS)
1091 #define IS_DATA_FRAME(wh) \
1092 ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK)) == IEEE80211_FC0_TYPE_DATA)
1093 int error, ismcast, iswep;
1094 int copyhdrlen, hdrlen, pktlen;
1095 struct ieee80211_frame *wh;
1096 struct ifnet *ifp = sc->malo_ifp;
1097 struct ieee80211com *ic = ifp->if_l2com;
1098 struct ieee80211vap *vap = ni->ni_vap;
1099 struct malo_txdesc *ds;
1100 struct malo_txrec *tr;
1101 struct malo_txq *txq;
1104 wh = mtod(m0, struct ieee80211_frame *);
1105 iswep = wh->i_fc[1] & IEEE80211_FC1_PROTECTED;
1106 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
1107 copyhdrlen = hdrlen = ieee80211_anyhdrsize(wh);
1108 pktlen = m0->m_pkthdr.len;
1109 if (IEEE80211_QOS_HAS_SEQ(wh)) {
1110 if (IEEE80211_DIR_DSTODS(wh)) {
1112 (((struct ieee80211_qosframe_addr4 *) wh)->i_qos);
1113 copyhdrlen -= sizeof(qos);
1116 (((struct ieee80211_qosframe *) wh)->i_qos);
1121 struct ieee80211_key *k;
1124 * Construct the 802.11 header+trailer for an encrypted
1125 * frame. The only reason this can fail is because of an
1126 * unknown or unsupported cipher/key type.
1128 * NB: we do this even though the firmware will ignore
1129 * what we've done for WEP and TKIP as we need the
1130 * ExtIV filled in for CCMP and this also adjusts
1131 * the headers which simplifies our work below.
1133 k = ieee80211_crypto_encap(ni, m0);
1136 * This can happen when the key is yanked after the
1137 * frame was queued. Just discard the frame; the
1138 * 802.11 layer counts failures and provides
1139 * debugging/diagnostics.
1146 * Adjust the packet length for the crypto additions
1147 * done during encap and any other bits that the f/w
1148 * will add later on.
1150 pktlen = m0->m_pkthdr.len;
1152 /* packet header may have moved, reset our local pointer */
1153 wh = mtod(m0, struct ieee80211_frame *);
1156 if (ieee80211_radiotap_active_vap(vap)) {
1157 sc->malo_tx_th.wt_flags = 0; /* XXX */
1159 sc->malo_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_WEP;
1160 sc->malo_tx_th.wt_txpower = ni->ni_txpower;
1161 sc->malo_tx_th.wt_antenna = sc->malo_txantenna;
1163 ieee80211_radiotap_tx(vap, m0);
1167 * Copy up/down the 802.11 header; the firmware requires
1168 * we present a 2-byte payload length followed by a
1169 * 4-address header (w/o QoS), followed (optionally) by
1170 * any WEP/ExtIV header (but only filled in for CCMP).
1171 * We are assured the mbuf has sufficient headroom to
1172 * prepend in-place by the setup of ic_headroom in
1175 if (hdrlen < sizeof(struct malo_txrec)) {
1176 const int space = sizeof(struct malo_txrec) - hdrlen;
1177 if (M_LEADINGSPACE(m0) < space) {
1178 /* NB: should never happen */
1179 device_printf(sc->malo_dev,
1180 "not enough headroom, need %d found %zd, "
1181 "m_flags 0x%x m_len %d\n",
1182 space, M_LEADINGSPACE(m0), m0->m_flags, m0->m_len);
1183 ieee80211_dump_pkt(ic,
1184 mtod(m0, const uint8_t *), m0->m_len, 0, -1);
1189 M_PREPEND(m0, space, M_NOWAIT);
1191 tr = mtod(m0, struct malo_txrec *);
1192 if (wh != (struct ieee80211_frame *) &tr->wh)
1193 ovbcopy(wh, &tr->wh, hdrlen);
1195 * Note: the "firmware length" is actually the length of the fully
1196 * formed "802.11 payload". That is, it's everything except for
1197 * the 802.11 header. In particular this includes all crypto
1198 * material including the MIC!
1200 tr->fwlen = htole16(pktlen - hdrlen);
1203 * Load the DMA map so any coalescing is done. This
1204 * also calculates the number of descriptors we need.
1206 error = malo_tx_dmasetup(sc, bf, m0);
1209 bf->bf_node = ni; /* NB: held reference */
1210 m0 = bf->bf_m; /* NB: may have changed */
1211 tr = mtod(m0, struct malo_txrec *);
1212 wh = (struct ieee80211_frame *)&tr->wh;
1215 * Formulate tx descriptor.
1220 ds->qosctrl = qos; /* NB: already little-endian */
1221 ds->pktptr = htole32(bf->bf_segs[0].ds_addr);
1222 ds->pktlen = htole16(bf->bf_segs[0].ds_len);
1223 /* NB: pPhysNext setup once, don't touch */
1224 ds->datarate = IS_DATA_FRAME(wh) ? 1 : 0;
1225 ds->sap_pktinfo = 0;
1229 * Select transmit rate.
1231 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
1232 case IEEE80211_FC0_TYPE_MGT:
1233 sc->malo_stats.mst_tx_mgmt++;
1235 case IEEE80211_FC0_TYPE_CTL:
1238 case IEEE80211_FC0_TYPE_DATA:
1239 ds->txpriority = txq->qnum;
1242 if_printf(ifp, "bogus frame type 0x%x (%s)\n",
1243 wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK, __func__);
1250 if (IFF_DUMPPKTS_XMIT(sc))
1251 ieee80211_dump_pkt(ic,
1252 mtod(m0, const uint8_t *)+sizeof(uint16_t),
1253 m0->m_len - sizeof(uint16_t), ds->datarate, -1);
1257 if (!IS_DATA_FRAME(wh))
1258 ds->status |= htole32(1);
1259 ds->status |= htole32(MALO_TXD_STATUS_FW_OWNED);
1260 STAILQ_INSERT_TAIL(&txq->active, bf, bf_list);
1261 MALO_TXDESC_SYNC(txq, ds, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
1265 MALO_TXQ_UNLOCK(txq);
1267 #undef IEEE80211_DIR_DSTODS
1271 malo_start(struct ifnet *ifp)
1273 struct malo_softc *sc = ifp->if_softc;
1274 struct ieee80211_node *ni;
1275 struct malo_txq *txq = &sc->malo_txq[0];
1276 struct malo_txbuf *bf = NULL;
1280 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || sc->malo_invalid)
1284 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1287 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1288 bf = malo_getbuf(sc, txq);
1290 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1292 /* XXX blocks other traffic */
1293 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1294 sc->malo_stats.mst_tx_qstop++;
1298 * Pass the frame to the h/w for transmission.
1300 if (malo_tx_start(sc, ni, bf, m)) {
1306 STAILQ_INSERT_HEAD(&txq->free, bf, bf_list);
1307 MALO_TXQ_UNLOCK(txq);
1309 ieee80211_free_node(ni);
1314 if (nqueued >= malo_txcoalesce) {
1316 * Poke the firmware to process queued frames;
1317 * see below about (lack of) locking.
1320 malo_hal_txstart(sc->malo_mh, 0/*XXX*/);
1326 * NB: We don't need to lock against tx done because
1327 * this just prods the firmware to check the transmit
1328 * descriptors. The firmware will also start fetching
1329 * descriptors by itself if it notices new ones are
1330 * present when it goes to deliver a tx done interrupt
1331 * to the host. So if we race with tx done processing
1332 * it's ok. Delivering the kick here rather than in
1333 * malo_tx_start is an optimization to avoid poking the
1334 * firmware for each packet.
1336 * NB: the queue id isn't used so 0 is ok.
1338 malo_hal_txstart(sc->malo_mh, 0/*XXX*/);
1343 malo_watchdog(void *arg)
1345 struct malo_softc *sc;
1349 callout_reset(&sc->malo_watchdog_timer, hz, malo_watchdog, sc);
1350 if (sc->malo_timer == 0 || --sc->malo_timer > 0)
1354 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) && !sc->malo_invalid) {
1355 if_printf(ifp, "watchdog timeout\n");
1357 /* XXX no way to reset h/w. now */
1360 sc->malo_stats.mst_watchdog++;
1365 malo_hal_reset(struct malo_softc *sc)
1367 static int first = 0;
1368 struct ifnet *ifp = sc->malo_ifp;
1369 struct ieee80211com *ic = ifp->if_l2com;
1370 struct malo_hal *mh = sc->malo_mh;
1374 * NB: when the device firstly is initialized, sometimes
1375 * firmware could override rx/tx dma registers so we re-set
1376 * these values once.
1378 malo_hal_set_rxtxdma(sc);
1382 malo_hal_setantenna(mh, MHA_ANTENNATYPE_RX, sc->malo_rxantenna);
1383 malo_hal_setantenna(mh, MHA_ANTENNATYPE_TX, sc->malo_txantenna);
1384 malo_hal_setradio(mh, 1, MHP_AUTO_PREAMBLE);
1385 malo_chan_set(sc, ic->ic_curchan);
1387 /* XXX needs other stuffs? */
1392 static __inline struct mbuf *
1393 malo_getrxmbuf(struct malo_softc *sc, struct malo_rxbuf *bf)
1399 /* XXX don't need mbuf, just dma buffer */
1400 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1402 sc->malo_stats.mst_rx_nombuf++; /* XXX */
1405 error = bus_dmamap_load(sc->malo_dmat, bf->bf_dmamap,
1406 mtod(m, caddr_t), MJUMPAGESIZE,
1407 malo_load_cb, &paddr, BUS_DMA_NOWAIT);
1409 if_printf(sc->malo_ifp,
1410 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1414 bf->bf_data = paddr;
1415 bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE);
1421 malo_rxbuf_init(struct malo_softc *sc, struct malo_rxbuf *bf)
1423 struct malo_rxdesc *ds;
1426 if (bf->bf_m == NULL) {
1427 bf->bf_m = malo_getrxmbuf(sc, bf);
1428 if (bf->bf_m == NULL) {
1429 /* mark descriptor to be skipped */
1430 ds->rxcontrol = MALO_RXD_CTRL_OS_OWN;
1431 /* NB: don't need PREREAD */
1432 MALO_RXDESC_SYNC(sc, ds, BUS_DMASYNC_PREWRITE);
1442 ds->status = MALO_RXD_STATUS_IDLE;
1444 ds->pktlen = htole16(MALO_RXSIZE);
1446 ds->physbuffdata = htole32(bf->bf_data);
1447 /* NB: don't touch pPhysNext, set once */
1448 ds->rxcontrol = MALO_RXD_CTRL_DRIVER_OWN;
1449 MALO_RXDESC_SYNC(sc, ds, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
1455 * Setup the rx data structures. This should only be done once or we may get
1456 * out of sync with the firmware.
1459 malo_startrecv(struct malo_softc *sc)
1461 struct malo_rxbuf *bf, *prev;
1462 struct malo_rxdesc *ds;
1464 if (sc->malo_recvsetup == 1) {
1465 malo_mode_init(sc); /* set filters, etc. */
1470 STAILQ_FOREACH(bf, &sc->malo_rxbuf, bf_list) {
1471 int error = malo_rxbuf_init(sc, bf);
1473 DPRINTF(sc, MALO_DEBUG_RECV,
1474 "%s: malo_rxbuf_init failed %d\n",
1480 ds->physnext = htole32(bf->bf_daddr);
1487 htole32(STAILQ_FIRST(&sc->malo_rxbuf)->bf_daddr);
1490 sc->malo_recvsetup = 1;
1492 malo_mode_init(sc); /* set filters, etc. */
1498 malo_init_locked(struct malo_softc *sc)
1500 struct ifnet *ifp = sc->malo_ifp;
1501 struct malo_hal *mh = sc->malo_mh;
1504 DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags 0x%x\n",
1505 __func__, ifp->if_flags);
1507 MALO_LOCK_ASSERT(sc);
1510 * Stop anything previously setup. This is safe whether this is
1511 * the first time through or not.
1513 malo_stop_locked(ifp, 0);
1516 * Push state to the firmware.
1518 if (!malo_hal_reset(sc)) {
1519 if_printf(ifp, "%s: unable to reset hardware\n", __func__);
1524 * Setup recv (once); transmit is already good to go.
1526 error = malo_startrecv(sc);
1528 if_printf(ifp, "%s: unable to start recv logic, error %d\n",
1534 * Enable interrupts.
1536 sc->malo_imask = MALO_A2HRIC_BIT_RX_RDY
1537 | MALO_A2HRIC_BIT_TX_DONE
1538 | MALO_A2HRIC_BIT_OPC_DONE
1539 | MALO_A2HRIC_BIT_MAC_EVENT
1540 | MALO_A2HRIC_BIT_RX_PROBLEM
1541 | MALO_A2HRIC_BIT_ICV_ERROR
1542 | MALO_A2HRIC_BIT_RADAR_DETECT
1543 | MALO_A2HRIC_BIT_CHAN_SWITCH;
1545 ifp->if_drv_flags |= IFF_DRV_RUNNING;
1546 malo_hal_intrset(mh, sc->malo_imask);
1547 callout_reset(&sc->malo_watchdog_timer, hz, malo_watchdog, sc);
1551 malo_init(void *arg)
1553 struct malo_softc *sc = (struct malo_softc *) arg;
1554 struct ifnet *ifp = sc->malo_ifp;
1555 struct ieee80211com *ic = ifp->if_l2com;
1557 DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags 0x%x\n",
1558 __func__, ifp->if_flags);
1561 malo_init_locked(sc);
1565 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1566 ieee80211_start_all(ic); /* start all vap's */
1570 * Set the multicast filter contents into the hardware.
1573 malo_setmcastfilter(struct malo_softc *sc)
1575 struct ifnet *ifp = sc->malo_ifp;
1576 struct ieee80211com *ic = ifp->if_l2com;
1577 struct ifmultiaddr *ifma;
1578 uint8_t macs[IEEE80211_ADDR_LEN * MALO_HAL_MCAST_MAX];
1585 if (ic->ic_opmode == IEEE80211_M_MONITOR ||
1586 (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)))
1589 if_maddr_rlock(ifp);
1590 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1591 if (ifma->ifma_addr->sa_family != AF_LINK)
1594 if (nmc == MALO_HAL_MCAST_MAX) {
1595 ifp->if_flags |= IFF_ALLMULTI;
1596 if_maddr_runlock(ifp);
1599 IEEE80211_ADDR_COPY(mp,
1600 LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
1602 mp += IEEE80211_ADDR_LEN, nmc++;
1604 if_maddr_runlock(ifp);
1606 malo_hal_setmcast(sc->malo_mh, nmc, macs);
1610 * XXX we don't know how to set the f/w for supporting
1611 * IFF_ALLMULTI | IFF_PROMISC cases
1617 malo_mode_init(struct malo_softc *sc)
1619 struct ifnet *ifp = sc->malo_ifp;
1620 struct ieee80211com *ic = ifp->if_l2com;
1621 struct malo_hal *mh = sc->malo_mh;
1624 * NB: Ignore promisc in hostap mode; it's set by the
1625 * bridge. This is wrong but we have no way to
1626 * identify internal requests (from the bridge)
1627 * versus external requests such as for tcpdump.
1629 malo_hal_setpromisc(mh, (ifp->if_flags & IFF_PROMISC) &&
1630 ic->ic_opmode != IEEE80211_M_HOSTAP);
1631 malo_setmcastfilter(sc);
1637 malo_tx_draintxq(struct malo_softc *sc, struct malo_txq *txq)
1639 struct ieee80211_node *ni;
1640 struct malo_txbuf *bf;
1644 * NB: this assumes output has been stopped and
1645 * we do not need to block malo_tx_tasklet
1647 for (ix = 0;; ix++) {
1649 bf = STAILQ_FIRST(&txq->active);
1651 MALO_TXQ_UNLOCK(txq);
1654 STAILQ_REMOVE_HEAD(&txq->active, bf_list);
1655 MALO_TXQ_UNLOCK(txq);
1657 if (sc->malo_debug & MALO_DEBUG_RESET) {
1658 struct ifnet *ifp = sc->malo_ifp;
1659 struct ieee80211com *ic = ifp->if_l2com;
1660 const struct malo_txrec *tr =
1661 mtod(bf->bf_m, const struct malo_txrec *);
1662 malo_printtxbuf(bf, txq->qnum, ix);
1663 ieee80211_dump_pkt(ic, (const uint8_t *)&tr->wh,
1664 bf->bf_m->m_len - sizeof(tr->fwlen), 0, -1);
1666 #endif /* MALO_DEBUG */
1667 bus_dmamap_unload(sc->malo_dmat, bf->bf_dmamap);
1672 * Reclaim node reference.
1674 ieee80211_free_node(ni);
1680 STAILQ_INSERT_TAIL(&txq->free, bf, bf_list);
1682 MALO_TXQ_UNLOCK(txq);
1687 malo_stop_locked(struct ifnet *ifp, int disable)
1689 struct malo_softc *sc = ifp->if_softc;
1690 struct malo_hal *mh = sc->malo_mh;
1693 DPRINTF(sc, MALO_DEBUG_ANY, "%s: invalid %u if_flags 0x%x\n",
1694 __func__, sc->malo_invalid, ifp->if_flags);
1696 MALO_LOCK_ASSERT(sc);
1698 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
1702 * Shutdown the hardware and driver:
1703 * disable interrupts
1704 * turn off the radio
1705 * drain and release tx queues
1707 * Note that some of this work is not possible if the hardware
1708 * is gone (invalid).
1710 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1711 callout_stop(&sc->malo_watchdog_timer);
1713 /* diable interrupt. */
1714 malo_hal_intrset(mh, 0);
1715 /* turn off the radio. */
1716 malo_hal_setradio(mh, 0, MHP_AUTO_PREAMBLE);
1718 /* drain and release tx queues. */
1719 for (i = 0; i < MALO_NUM_TX_QUEUES; i++)
1720 malo_tx_draintxq(sc, &sc->malo_txq[i]);
1724 malo_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1726 #define MALO_IS_RUNNING(ifp) \
1727 ((ifp->if_flags & IFF_UP) && (ifp->if_drv_flags & IFF_DRV_RUNNING))
1728 struct malo_softc *sc = ifp->if_softc;
1729 struct ieee80211com *ic = ifp->if_l2com;
1730 struct ifreq *ifr = (struct ifreq *) data;
1731 int error = 0, startall = 0;
1736 if (MALO_IS_RUNNING(ifp)) {
1738 * To avoid rescanning another access point,
1739 * do not call malo_init() here. Instead,
1740 * only reflect promisc mode settings.
1743 } else if (ifp->if_flags & IFF_UP) {
1745 * Beware of being called during attach/detach
1746 * to reset promiscuous mode. In that case we
1747 * will still be marked UP but not RUNNING.
1748 * However trying to re-init the interface
1749 * is the wrong thing to do as we've already
1750 * torn down much of our state. There's
1751 * probably a better way to deal with this.
1753 if (!sc->malo_invalid) {
1754 malo_init_locked(sc);
1758 malo_stop_locked(ifp, 1);
1762 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1765 error = ether_ioctl(ifp, cmd, data);
1771 ieee80211_start_all(ic);
1773 #undef MALO_IS_RUNNING
1777 * Callback from the 802.11 layer to update the slot time
1778 * based on the current setting. We use it to notify the
1779 * firmware of ERP changes and the f/w takes care of things
1780 * like slot time and preamble.
1783 malo_updateslot(struct ifnet *ifp)
1785 struct malo_softc *sc = ifp->if_softc;
1786 struct ieee80211com *ic = ifp->if_l2com;
1787 struct malo_hal *mh = sc->malo_mh;
1790 /* NB: can be called early; suppress needless cmds */
1791 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
1794 DPRINTF(sc, MALO_DEBUG_RESET,
1795 "%s: chan %u MHz/flags 0x%x %s slot, (ic_flags 0x%x)\n",
1796 __func__, ic->ic_curchan->ic_freq, ic->ic_curchan->ic_flags,
1797 ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long", ic->ic_flags);
1799 if (ic->ic_flags & IEEE80211_F_SHSLOT)
1800 error = malo_hal_set_slot(mh, 1);
1802 error = malo_hal_set_slot(mh, 0);
1805 device_printf(sc->malo_dev, "setting %s slot failed\n",
1806 ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long");
1810 malo_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1812 struct ieee80211com *ic = vap->iv_ic;
1813 struct malo_softc *sc = ic->ic_ifp->if_softc;
1814 struct malo_hal *mh = sc->malo_mh;
1817 DPRINTF(sc, MALO_DEBUG_STATE, "%s: %s -> %s\n", __func__,
1818 ieee80211_state_name[vap->iv_state],
1819 ieee80211_state_name[nstate]);
1822 * Invoke the net80211 layer first so iv_bss is setup.
1824 error = MALO_VAP(vap)->malo_newstate(vap, nstate, arg);
1828 if (nstate == IEEE80211_S_RUN && vap->iv_state != IEEE80211_S_RUN) {
1829 struct ieee80211_node *ni = vap->iv_bss;
1830 enum ieee80211_phymode mode = ieee80211_chan2mode(ni->ni_chan);
1831 const struct ieee80211_txparam *tp = &vap->iv_txparms[mode];
1833 DPRINTF(sc, MALO_DEBUG_STATE,
1834 "%s: %s(RUN): iv_flags 0x%08x bintvl %d bssid %s "
1835 "capinfo 0x%04x chan %d associd 0x%x mode %d rate %d\n",
1836 vap->iv_ifp->if_xname, __func__, vap->iv_flags,
1837 ni->ni_intval, ether_sprintf(ni->ni_bssid), ni->ni_capinfo,
1838 ieee80211_chan2ieee(ic, ic->ic_curchan),
1839 ni->ni_associd, mode, tp->ucastrate);
1841 malo_hal_setradio(mh, 1,
1842 (ic->ic_flags & IEEE80211_F_SHPREAMBLE) ?
1843 MHP_SHORT_PREAMBLE : MHP_LONG_PREAMBLE);
1844 malo_hal_setassocid(sc->malo_mh, ni->ni_bssid, ni->ni_associd);
1845 malo_hal_set_rate(mh, mode,
1846 tp->ucastrate == IEEE80211_FIXED_RATE_NONE ?
1847 0 : malo_fix2rate(tp->ucastrate));
1853 malo_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1854 const struct ieee80211_bpf_params *params)
1856 struct ieee80211com *ic = ni->ni_ic;
1857 struct ifnet *ifp = ic->ic_ifp;
1858 struct malo_softc *sc = ifp->if_softc;
1859 struct malo_txbuf *bf;
1860 struct malo_txq *txq;
1862 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || sc->malo_invalid) {
1863 ieee80211_free_node(ni);
1869 * Grab a TX buffer and associated resources. Note that we depend
1870 * on the classification by the 802.11 layer to get to the right h/w
1871 * queue. Management frames must ALWAYS go on queue 1 but we
1872 * cannot just force that here because we may receive non-mgt frames.
1874 txq = &sc->malo_txq[0];
1875 bf = malo_getbuf(sc, txq);
1877 /* XXX blocks other traffic */
1878 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1879 ieee80211_free_node(ni);
1885 * Pass the frame to the h/w for transmission.
1887 if (malo_tx_start(sc, ni, bf, m) != 0) {
1892 STAILQ_INSERT_HEAD(&txq->free, bf, bf_list);
1894 MALO_TXQ_UNLOCK(txq);
1896 ieee80211_free_node(ni);
1897 return EIO; /* XXX */
1901 * NB: We don't need to lock against tx done because this just
1902 * prods the firmware to check the transmit descriptors. The firmware
1903 * will also start fetching descriptors by itself if it notices
1904 * new ones are present when it goes to deliver a tx done interrupt
1905 * to the host. So if we race with tx done processing it's ok.
1906 * Delivering the kick here rather than in malo_tx_start is
1907 * an optimization to avoid poking the firmware for each packet.
1909 * NB: the queue id isn't used so 0 is ok.
1911 malo_hal_txstart(sc->malo_mh, 0/*XXX*/);
1917 malo_sysctlattach(struct malo_softc *sc)
1920 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->malo_dev);
1921 struct sysctl_oid *tree = device_get_sysctl_tree(sc->malo_dev);
1923 sc->malo_debug = malo_debug;
1924 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1925 "debug", CTLFLAG_RW, &sc->malo_debug, 0,
1926 "control debugging printfs");
1931 malo_announce(struct malo_softc *sc)
1933 struct ifnet *ifp = sc->malo_ifp;
1935 if_printf(ifp, "versions [hw %d fw %d.%d.%d.%d] (regioncode %d)\n",
1936 sc->malo_hwspecs.hwversion,
1937 (sc->malo_hwspecs.fw_releasenum >> 24) & 0xff,
1938 (sc->malo_hwspecs.fw_releasenum >> 16) & 0xff,
1939 (sc->malo_hwspecs.fw_releasenum >> 8) & 0xff,
1940 (sc->malo_hwspecs.fw_releasenum >> 0) & 0xff,
1941 sc->malo_hwspecs.regioncode);
1943 if (bootverbose || malo_rxbuf != MALO_RXBUF)
1944 if_printf(ifp, "using %u rx buffers\n", malo_rxbuf);
1945 if (bootverbose || malo_txbuf != MALO_TXBUF)
1946 if_printf(ifp, "using %u tx buffers\n", malo_txbuf);
1950 * Convert net80211 channel to a HAL channel.
1953 malo_mapchan(struct malo_hal_channel *hc, const struct ieee80211_channel *chan)
1955 hc->channel = chan->ic_ieee;
1957 *(uint32_t *)&hc->flags = 0;
1958 if (IEEE80211_IS_CHAN_2GHZ(chan))
1959 hc->flags.freqband = MALO_FREQ_BAND_2DOT4GHZ;
1963 * Set/change channels. If the channel is really being changed,
1964 * it's done by reseting the chip. To accomplish this we must
1965 * first cleanup any pending DMA, then restart stuff after a la
1969 malo_chan_set(struct malo_softc *sc, struct ieee80211_channel *chan)
1971 struct malo_hal *mh = sc->malo_mh;
1972 struct malo_hal_channel hchan;
1974 DPRINTF(sc, MALO_DEBUG_RESET, "%s: chan %u MHz/flags 0x%x\n",
1975 __func__, chan->ic_freq, chan->ic_flags);
1978 * Convert to a HAL channel description with the flags constrained
1979 * to reflect the current operating mode.
1981 malo_mapchan(&hchan, chan);
1982 malo_hal_intrset(mh, 0); /* disable interrupts */
1983 malo_hal_setchannel(mh, &hchan);
1984 malo_hal_settxpower(mh, &hchan);
1987 * Update internal state.
1989 sc->malo_tx_th.wt_chan_freq = htole16(chan->ic_freq);
1990 sc->malo_rx_th.wr_chan_freq = htole16(chan->ic_freq);
1991 if (IEEE80211_IS_CHAN_ANYG(chan)) {
1992 sc->malo_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_G);
1993 sc->malo_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_G);
1995 sc->malo_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_B);
1996 sc->malo_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_B);
1998 sc->malo_curchan = hchan;
1999 malo_hal_intrset(mh, sc->malo_imask);
2005 malo_scan_start(struct ieee80211com *ic)
2007 struct ifnet *ifp = ic->ic_ifp;
2008 struct malo_softc *sc = ifp->if_softc;
2010 DPRINTF(sc, MALO_DEBUG_STATE, "%s\n", __func__);
2014 malo_scan_end(struct ieee80211com *ic)
2016 struct ifnet *ifp = ic->ic_ifp;
2017 struct malo_softc *sc = ifp->if_softc;
2019 DPRINTF(sc, MALO_DEBUG_STATE, "%s\n", __func__);
2023 malo_set_channel(struct ieee80211com *ic)
2025 struct ifnet *ifp = ic->ic_ifp;
2026 struct malo_softc *sc = ifp->if_softc;
2028 (void) malo_chan_set(sc, ic->ic_curchan);
2032 malo_rx_proc(void *arg, int npending)
2034 #define IEEE80211_DIR_DSTODS(wh) \
2035 ((((const struct ieee80211_frame *)wh)->i_fc[1] & \
2036 IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS)
2037 struct malo_softc *sc = arg;
2038 struct ifnet *ifp = sc->malo_ifp;
2039 struct ieee80211com *ic = ifp->if_l2com;
2040 struct malo_rxbuf *bf;
2041 struct malo_rxdesc *ds;
2042 struct mbuf *m, *mnew;
2043 struct ieee80211_qosframe *wh;
2044 struct ieee80211_qosframe_addr4 *wh4;
2045 struct ieee80211_node *ni;
2046 int off, len, hdrlen, pktlen, rssi, ntodo;
2047 uint8_t *data, status;
2048 uint32_t readptr, writeptr;
2050 DPRINTF(sc, MALO_DEBUG_RX_PROC,
2051 "%s: pending %u rdptr(0x%x) 0x%x wrptr(0x%x) 0x%x\n",
2053 sc->malo_hwspecs.rxdesc_read,
2054 malo_bar0_read4(sc, sc->malo_hwspecs.rxdesc_read),
2055 sc->malo_hwspecs.rxdesc_write,
2056 malo_bar0_read4(sc, sc->malo_hwspecs.rxdesc_write));
2058 readptr = malo_bar0_read4(sc, sc->malo_hwspecs.rxdesc_read);
2059 writeptr = malo_bar0_read4(sc, sc->malo_hwspecs.rxdesc_write);
2060 if (readptr == writeptr)
2063 bf = sc->malo_rxnext;
2064 for (ntodo = malo_rxquota; ntodo > 0 && readptr != writeptr; ntodo--) {
2066 bf = STAILQ_FIRST(&sc->malo_rxbuf);
2070 if (bf->bf_m == NULL) {
2072 * If data allocation failed previously there
2073 * will be no buffer; try again to re-populate it.
2074 * Note the firmware will not advance to the next
2075 * descriptor with a dma buffer so we must mimic
2076 * this or we'll get out of sync.
2078 DPRINTF(sc, MALO_DEBUG_ANY,
2079 "%s: rx buf w/o dma memory\n", __func__);
2080 (void)malo_rxbuf_init(sc, bf);
2083 MALO_RXDESC_SYNC(sc, ds,
2084 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2085 if (ds->rxcontrol != MALO_RXD_CTRL_DMA_OWN)
2088 readptr = le32toh(ds->physnext);
2091 if (sc->malo_debug & MALO_DEBUG_RECV_DESC)
2092 malo_printrxbuf(bf, 0);
2094 status = ds->status;
2095 if (status & MALO_RXD_STATUS_DECRYPT_ERR_MASK) {
2100 * Sync the data buffer.
2102 len = le16toh(ds->pktlen);
2103 bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap,
2104 BUS_DMASYNC_POSTREAD);
2106 * The 802.11 header is provided all or in part at the front;
2107 * use it to calculate the true size of the header that we'll
2108 * construct below. We use this to figure out where to copy
2109 * payload prior to constructing the header.
2112 data = mtod(m, uint8_t *);
2113 hdrlen = ieee80211_anyhdrsize(data + sizeof(uint16_t));
2114 off = sizeof(uint16_t) + sizeof(struct ieee80211_frame_addr4);
2117 * Calculate RSSI. XXX wrong
2119 rssi = 2 * ((int) ds->snr - ds->nf); /* NB: .5 dBm */
2123 pktlen = hdrlen + (len - off);
2125 * NB: we know our frame is at least as large as
2126 * IEEE80211_MIN_LEN because there is a 4-address frame at
2127 * the front. Hence there's no need to vet the packet length.
2128 * If the frame in fact is too small it should be discarded
2129 * at the net80211 layer.
2132 /* XXX don't need mbuf, just dma buffer */
2133 mnew = malo_getrxmbuf(sc, bf);
2139 * Attach the dma buffer to the mbuf; malo_rxbuf_init will
2140 * re-setup the rx descriptor using the replacement dma
2141 * buffer we just installed above.
2144 m->m_data += off - hdrlen;
2145 m->m_pkthdr.len = m->m_len = pktlen;
2146 m->m_pkthdr.rcvif = ifp;
2149 * Piece 802.11 header together.
2151 wh = mtod(m, struct ieee80211_qosframe *);
2152 /* NB: don't need to do this sometimes but ... */
2153 /* XXX special case so we can memcpy after m_devget? */
2154 ovbcopy(data + sizeof(uint16_t), wh, hdrlen);
2155 if (IEEE80211_QOS_HAS_SEQ(wh)) {
2156 if (IEEE80211_DIR_DSTODS(wh)) {
2158 struct ieee80211_qosframe_addr4*);
2159 *(uint16_t *)wh4->i_qos = ds->qosctrl;
2161 *(uint16_t *)wh->i_qos = ds->qosctrl;
2164 if (ieee80211_radiotap_active(ic)) {
2165 sc->malo_rx_th.wr_flags = 0;
2166 sc->malo_rx_th.wr_rate = ds->rate;
2167 sc->malo_rx_th.wr_antsignal = rssi;
2168 sc->malo_rx_th.wr_antnoise = ds->nf;
2171 if (IFF_DUMPPKTS_RECV(sc, wh)) {
2172 ieee80211_dump_pkt(ic, mtod(m, caddr_t),
2173 len, ds->rate, rssi);
2179 ni = ieee80211_find_rxnode(ic,
2180 (struct ieee80211_frame_min *)wh);
2182 (void) ieee80211_input(ni, m, rssi, ds->nf);
2183 ieee80211_free_node(ni);
2185 (void) ieee80211_input_all(ic, m, rssi, ds->nf);
2187 /* NB: ignore ENOMEM so we process more descriptors */
2188 (void) malo_rxbuf_init(sc, bf);
2189 bf = STAILQ_NEXT(bf, bf_list);
2192 malo_bar0_write4(sc, sc->malo_hwspecs.rxdesc_read, readptr);
2193 sc->malo_rxnext = bf;
2195 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
2196 !IFQ_IS_EMPTY(&ifp->if_snd))
2198 #undef IEEE80211_DIR_DSTODS
2202 malo_stop(struct ifnet *ifp, int disable)
2204 struct malo_softc *sc = ifp->if_softc;
2207 malo_stop_locked(ifp, disable);
2212 * Reclaim all tx queue resources.
2215 malo_tx_cleanup(struct malo_softc *sc)
2219 for (i = 0; i < MALO_NUM_TX_QUEUES; i++)
2220 malo_tx_cleanupq(sc, &sc->malo_txq[i]);
2224 malo_detach(struct malo_softc *sc)
2226 struct ifnet *ifp = sc->malo_ifp;
2227 struct ieee80211com *ic = ifp->if_l2com;
2229 DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags %x\n",
2230 __func__, ifp->if_flags);
2234 if (sc->malo_tq != NULL) {
2235 taskqueue_drain(sc->malo_tq, &sc->malo_rxtask);
2236 taskqueue_drain(sc->malo_tq, &sc->malo_txtask);
2237 taskqueue_free(sc->malo_tq);
2242 * NB: the order of these is important:
2243 * o call the 802.11 layer before detaching the hal to
2244 * insure callbacks into the driver to delete global
2245 * key cache entries can be handled
2246 * o reclaim the tx queue data structures after calling
2247 * the 802.11 layer as we'll get called back to reclaim
2248 * node state and potentially want to use them
2249 * o to cleanup the tx queues the hal is called, so detach
2251 * Other than that, it's straightforward...
2253 ieee80211_ifdetach(ic);
2254 callout_drain(&sc->malo_watchdog_timer);
2255 malo_dma_cleanup(sc);
2256 malo_tx_cleanup(sc);
2257 malo_hal_detach(sc->malo_mh);
2260 MALO_LOCK_DESTROY(sc);
2266 malo_shutdown(struct malo_softc *sc)
2268 malo_stop(sc->malo_ifp, 1);
2272 malo_suspend(struct malo_softc *sc)
2274 struct ifnet *ifp = sc->malo_ifp;
2276 DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags %x\n",
2277 __func__, ifp->if_flags);
2283 malo_resume(struct malo_softc *sc)
2285 struct ifnet *ifp = sc->malo_ifp;
2287 DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags %x\n",
2288 __func__, ifp->if_flags);
2290 if (ifp->if_flags & IFF_UP)