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_dmamem_alloc(dd->dd_dmat, (void**) &dd->dd_desc,
500 BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &dd->dd_dmamap);
502 if_printf(ifp, "unable to alloc memory for %u %s descriptors, "
503 "error %u\n", nbuf * ndesc, dd->dd_name, error);
507 error = bus_dmamap_load(dd->dd_dmat, dd->dd_dmamap,
508 dd->dd_desc, dd->dd_desc_len,
509 malo_load_cb, &dd->dd_desc_paddr, BUS_DMA_NOWAIT);
511 if_printf(ifp, "unable to map %s descriptors, error %u\n",
517 memset(ds, 0, dd->dd_desc_len);
518 DPRINTF(sc, MALO_DEBUG_RESET, "%s: %s DMA map: %p (%lu) -> %p (%lu)\n",
519 __func__, dd->dd_name, ds, (u_long) dd->dd_desc_len,
520 (caddr_t) dd->dd_desc_paddr, /*XXX*/ (u_long) dd->dd_desc_len);
524 bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap);
526 bus_dma_tag_destroy(dd->dd_dmat);
527 memset(dd, 0, sizeof(*dd));
531 #define DS2PHYS(_dd, _ds) \
532 ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
535 malo_rxdma_setup(struct malo_softc *sc)
537 struct ifnet *ifp = sc->malo_ifp;
539 struct malo_rxbuf *bf;
540 struct malo_rxdesc *ds;
542 error = malo_desc_setup(sc, "rx", &sc->malo_rxdma,
543 malo_rxbuf, sizeof(struct malo_rxbuf),
544 1, sizeof(struct malo_rxdesc));
549 * Allocate rx buffers and set them up.
551 bsize = malo_rxbuf * sizeof(struct malo_rxbuf);
552 bf = malloc(bsize, M_MALODEV, M_NOWAIT | M_ZERO);
554 if_printf(ifp, "malloc of %u rx buffers failed\n", bsize);
557 sc->malo_rxdma.dd_bufptr = bf;
559 STAILQ_INIT(&sc->malo_rxbuf);
560 ds = sc->malo_rxdma.dd_desc;
561 for (i = 0; i < malo_rxbuf; i++, bf++, ds++) {
563 bf->bf_daddr = DS2PHYS(&sc->malo_rxdma, ds);
564 error = bus_dmamap_create(sc->malo_dmat, BUS_DMA_NOWAIT,
567 if_printf(ifp, "%s: unable to dmamap for rx buffer, "
568 "error %d\n", __func__, error);
571 /* NB: tail is intentional to preserve descriptor order */
572 STAILQ_INSERT_TAIL(&sc->malo_rxbuf, bf, bf_list);
578 malo_txdma_setup(struct malo_softc *sc, struct malo_txq *txq)
580 struct ifnet *ifp = sc->malo_ifp;
582 struct malo_txbuf *bf;
583 struct malo_txdesc *ds;
585 error = malo_desc_setup(sc, "tx", &txq->dma,
586 malo_txbuf, sizeof(struct malo_txbuf),
587 MALO_TXDESC, sizeof(struct malo_txdesc));
591 /* allocate and setup tx buffers */
592 bsize = malo_txbuf * sizeof(struct malo_txbuf);
593 bf = malloc(bsize, M_MALODEV, M_NOWAIT | M_ZERO);
595 if_printf(ifp, "malloc of %u tx buffers failed\n",
599 txq->dma.dd_bufptr = bf;
601 STAILQ_INIT(&txq->free);
603 ds = txq->dma.dd_desc;
604 for (i = 0; i < malo_txbuf; i++, bf++, ds += MALO_TXDESC) {
606 bf->bf_daddr = DS2PHYS(&txq->dma, ds);
607 error = bus_dmamap_create(sc->malo_dmat, BUS_DMA_NOWAIT,
610 if_printf(ifp, "unable to create dmamap for tx "
611 "buffer %u, error %u\n", i, error);
614 STAILQ_INSERT_TAIL(&txq->free, bf, bf_list);
622 malo_desc_cleanup(struct malo_softc *sc, struct malo_descdma *dd)
624 bus_dmamap_unload(dd->dd_dmat, dd->dd_dmamap);
625 bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap);
626 bus_dma_tag_destroy(dd->dd_dmat);
628 memset(dd, 0, sizeof(*dd));
632 malo_rxdma_cleanup(struct malo_softc *sc)
634 struct malo_rxbuf *bf;
636 STAILQ_FOREACH(bf, &sc->malo_rxbuf, bf_list) {
637 if (bf->bf_m != NULL) {
641 if (bf->bf_dmamap != NULL) {
642 bus_dmamap_destroy(sc->malo_dmat, bf->bf_dmamap);
643 bf->bf_dmamap = NULL;
646 STAILQ_INIT(&sc->malo_rxbuf);
647 if (sc->malo_rxdma.dd_bufptr != NULL) {
648 free(sc->malo_rxdma.dd_bufptr, M_MALODEV);
649 sc->malo_rxdma.dd_bufptr = NULL;
651 if (sc->malo_rxdma.dd_desc_len != 0)
652 malo_desc_cleanup(sc, &sc->malo_rxdma);
656 malo_txdma_cleanup(struct malo_softc *sc, struct malo_txq *txq)
658 struct malo_txbuf *bf;
659 struct ieee80211_node *ni;
661 STAILQ_FOREACH(bf, &txq->free, bf_list) {
662 if (bf->bf_m != NULL) {
670 * Reclaim node reference.
672 ieee80211_free_node(ni);
674 if (bf->bf_dmamap != NULL) {
675 bus_dmamap_destroy(sc->malo_dmat, bf->bf_dmamap);
676 bf->bf_dmamap = NULL;
679 STAILQ_INIT(&txq->free);
681 if (txq->dma.dd_bufptr != NULL) {
682 free(txq->dma.dd_bufptr, M_MALODEV);
683 txq->dma.dd_bufptr = NULL;
685 if (txq->dma.dd_desc_len != 0)
686 malo_desc_cleanup(sc, &txq->dma);
690 malo_dma_cleanup(struct malo_softc *sc)
694 for (i = 0; i < MALO_NUM_TX_QUEUES; i++)
695 malo_txdma_cleanup(sc, &sc->malo_txq[i]);
697 malo_rxdma_cleanup(sc);
701 malo_dma_setup(struct malo_softc *sc)
705 /* rxdma initializing. */
706 error = malo_rxdma_setup(sc);
710 /* NB: we just have 1 tx queue now. */
711 for (i = 0; i < MALO_NUM_TX_QUEUES; i++) {
712 error = malo_txdma_setup(sc, &sc->malo_txq[i]);
714 malo_dma_cleanup(sc);
719 malo_txq_init(sc, &sc->malo_txq[i], i);
726 malo_hal_set_rxtxdma(struct malo_softc *sc)
730 malo_bar0_write4(sc, sc->malo_hwspecs.rxdesc_read,
731 sc->malo_hwdma.rxdesc_read);
732 malo_bar0_write4(sc, sc->malo_hwspecs.rxdesc_write,
733 sc->malo_hwdma.rxdesc_read);
735 for (i = 0; i < MALO_NUM_TX_QUEUES; i++) {
737 sc->malo_hwspecs.wcbbase[i], sc->malo_hwdma.wcbbase[i]);
742 * Inform firmware of our tx/rx dma setup. The BAR 0 writes below are
743 * for compatibility with older firmware. For current firmware we send
744 * this information with a cmd block via malo_hal_sethwdma.
747 malo_setup_hwdma(struct malo_softc *sc)
750 struct malo_txq *txq;
752 sc->malo_hwdma.rxdesc_read = sc->malo_rxdma.dd_desc_paddr;
754 for (i = 0; i < MALO_NUM_TX_QUEUES; i++) {
755 txq = &sc->malo_txq[i];
756 sc->malo_hwdma.wcbbase[i] = txq->dma.dd_desc_paddr;
758 sc->malo_hwdma.maxnum_txwcb = malo_txbuf;
759 sc->malo_hwdma.maxnum_wcb = MALO_NUM_TX_QUEUES;
761 malo_hal_set_rxtxdma(sc);
767 malo_txq_init(struct malo_softc *sc, struct malo_txq *txq, int qnum)
769 struct malo_txbuf *bf, *bn;
770 struct malo_txdesc *ds;
772 MALO_TXQ_LOCK_INIT(sc, txq);
774 txq->txpri = 0; /* XXX */
776 STAILQ_FOREACH(bf, &txq->free, bf_list) {
780 bn = STAILQ_NEXT(bf, bf_list);
782 bn = STAILQ_FIRST(&txq->free);
783 ds->physnext = htole32(bn->bf_daddr);
785 STAILQ_INIT(&txq->active);
789 * Reclaim resources for a setup queue.
792 malo_tx_cleanupq(struct malo_softc *sc, struct malo_txq *txq)
795 MALO_TXQ_LOCK_DESTROY(txq);
799 * Allocate a tx buffer for sending a frame.
801 static struct malo_txbuf *
802 malo_getbuf(struct malo_softc *sc, struct malo_txq *txq)
804 struct malo_txbuf *bf;
807 bf = STAILQ_FIRST(&txq->free);
809 STAILQ_REMOVE_HEAD(&txq->free, bf_list);
812 MALO_TXQ_UNLOCK(txq);
814 DPRINTF(sc, MALO_DEBUG_XMIT,
815 "%s: out of xmit buffers on q %d\n", __func__, txq->qnum);
816 sc->malo_stats.mst_tx_qstop++;
822 malo_tx_dmasetup(struct malo_softc *sc, struct malo_txbuf *bf, struct mbuf *m0)
828 * Load the DMA map so any coalescing is done. This also calculates
829 * the number of descriptors we need.
831 error = bus_dmamap_load_mbuf_sg(sc->malo_dmat, bf->bf_dmamap, m0,
832 bf->bf_segs, &bf->bf_nseg,
834 if (error == EFBIG) {
835 /* XXX packet requires too many descriptors */
836 bf->bf_nseg = MALO_TXDESC + 1;
837 } else if (error != 0) {
838 sc->malo_stats.mst_tx_busdma++;
843 * Discard null packets and check for packets that require too many
844 * TX descriptors. We try to convert the latter to a cluster.
846 if (error == EFBIG) { /* too many desc's, linearize */
847 sc->malo_stats.mst_tx_linear++;
848 m = m_defrag(m0, M_NOWAIT);
851 sc->malo_stats.mst_tx_nombuf++;
855 error = bus_dmamap_load_mbuf_sg(sc->malo_dmat, bf->bf_dmamap, m0,
856 bf->bf_segs, &bf->bf_nseg,
859 sc->malo_stats.mst_tx_busdma++;
863 KASSERT(bf->bf_nseg <= MALO_TXDESC,
864 ("too many segments after defrag; nseg %u", bf->bf_nseg));
865 } else if (bf->bf_nseg == 0) { /* null packet, discard */
866 sc->malo_stats.mst_tx_nodata++;
870 DPRINTF(sc, MALO_DEBUG_XMIT, "%s: m %p len %u\n",
871 __func__, m0, m0->m_pkthdr.len);
872 bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE);
880 malo_printrxbuf(const struct malo_rxbuf *bf, u_int ix)
882 const struct malo_rxdesc *ds = bf->bf_desc;
883 uint32_t status = le32toh(ds->status);
885 printf("R[%2u] (DS.V:%p DS.P:%p) NEXT:%08x DATA:%08x RC:%02x%s\n"
886 " STAT:%02x LEN:%04x SNR:%02x NF:%02x CHAN:%02x"
887 " RATE:%02x QOS:%04x\n",
888 ix, ds, (const struct malo_desc *)bf->bf_daddr,
889 le32toh(ds->physnext), le32toh(ds->physbuffdata),
891 ds->rxcontrol != MALO_RXD_CTRL_DRIVER_OWN ?
892 "" : (status & MALO_RXD_STATUS_OK) ? " *" : " !",
893 ds->status, le16toh(ds->pktlen), ds->snr, ds->nf, ds->channel,
894 ds->rate, le16toh(ds->qosctrl));
898 malo_printtxbuf(const struct malo_txbuf *bf, u_int qnum, u_int ix)
900 const struct malo_txdesc *ds = bf->bf_desc;
901 uint32_t status = le32toh(ds->status);
903 printf("Q%u[%3u]", qnum, ix);
904 printf(" (DS.V:%p DS.P:%p)\n",
905 ds, (const struct malo_txdesc *)bf->bf_daddr);
906 printf(" NEXT:%08x DATA:%08x LEN:%04x STAT:%08x%s\n",
907 le32toh(ds->physnext),
908 le32toh(ds->pktptr), le16toh(ds->pktlen), status,
909 status & MALO_TXD_STATUS_USED ?
910 "" : (status & 3) != 0 ? " *" : " !");
911 printf(" RATE:%02x PRI:%x QOS:%04x SAP:%08x FORMAT:%04x\n",
912 ds->datarate, ds->txpriority, le16toh(ds->qosctrl),
913 le32toh(ds->sap_pktinfo), le16toh(ds->format));
916 const uint8_t *cp = (const uint8_t *) ds;
918 for (i = 0; i < sizeof(struct malo_txdesc); i++) {
919 printf("%02x ", cp[i]);
920 if (((i+1) % 16) == 0)
927 #endif /* MALO_DEBUG */
930 malo_updatetxrate(struct ieee80211_node *ni, int rix)
932 #define N(x) (sizeof(x)/sizeof(x[0]))
933 static const int ieeerates[] =
934 { 2, 4, 11, 22, 44, 12, 18, 24, 36, 48, 96, 108 };
935 if (rix < N(ieeerates))
936 ni->ni_txrate = ieeerates[rix];
941 malo_fix2rate(int fix_rate)
943 #define N(x) (sizeof(x)/sizeof(x[0]))
944 static const int rates[] =
945 { 2, 4, 11, 22, 12, 18, 24, 36, 48, 96, 108 };
946 return (fix_rate < N(rates) ? rates[fix_rate] : 0);
950 /* idiomatic shorthands: MS = mask+shift, SM = shift+mask */
951 #define MS(v,x) (((v) & x) >> x##_S)
952 #define SM(v,x) (((v) << x##_S) & x)
955 * Process completed xmit descriptors from the specified queue.
958 malo_tx_processq(struct malo_softc *sc, struct malo_txq *txq)
960 struct malo_txbuf *bf;
961 struct malo_txdesc *ds;
962 struct ieee80211_node *ni;
966 DPRINTF(sc, MALO_DEBUG_TX_PROC, "%s: tx queue %u\n",
967 __func__, txq->qnum);
968 for (nreaped = 0;; nreaped++) {
970 bf = STAILQ_FIRST(&txq->active);
972 MALO_TXQ_UNLOCK(txq);
976 MALO_TXDESC_SYNC(txq, ds,
977 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
978 if (ds->status & htole32(MALO_TXD_STATUS_FW_OWNED)) {
979 MALO_TXQ_UNLOCK(txq);
982 STAILQ_REMOVE_HEAD(&txq->active, bf_list);
983 MALO_TXQ_UNLOCK(txq);
986 if (sc->malo_debug & MALO_DEBUG_XMIT_DESC)
987 malo_printtxbuf(bf, txq->qnum, nreaped);
991 status = le32toh(ds->status);
992 if (status & MALO_TXD_STATUS_OK) {
993 uint16_t format = le16toh(ds->format);
994 uint8_t txant = MS(format, MALO_TXD_ANTENNA);
996 sc->malo_stats.mst_ant_tx[txant]++;
997 if (status & MALO_TXD_STATUS_OK_RETRY)
998 sc->malo_stats.mst_tx_retries++;
999 if (status & MALO_TXD_STATUS_OK_MORE_RETRY)
1000 sc->malo_stats.mst_tx_mretries++;
1001 malo_updatetxrate(ni, ds->datarate);
1002 sc->malo_stats.mst_tx_rate = ds->datarate;
1004 if (status & MALO_TXD_STATUS_FAILED_LINK_ERROR)
1005 sc->malo_stats.mst_tx_linkerror++;
1006 if (status & MALO_TXD_STATUS_FAILED_XRETRY)
1007 sc->malo_stats.mst_tx_xretries++;
1008 if (status & MALO_TXD_STATUS_FAILED_AGING)
1009 sc->malo_stats.mst_tx_aging++;
1012 * Do any tx complete callback. Note this must
1013 * be done before releasing the node reference.
1014 * XXX no way to figure out if frame was ACK'd
1016 if (bf->bf_m->m_flags & M_TXCB) {
1017 /* XXX strip fw len in case header inspected */
1018 m_adj(bf->bf_m, sizeof(uint16_t));
1019 ieee80211_process_callback(ni, bf->bf_m,
1020 (status & MALO_TXD_STATUS_OK) == 0);
1023 * Reclaim reference to node.
1025 * NB: the node may be reclaimed here if, for example
1026 * this is a DEAUTH message that was sent and the
1027 * node was timed out due to inactivity.
1029 ieee80211_free_node(ni);
1031 ds->status = htole32(MALO_TXD_STATUS_IDLE);
1032 ds->pktlen = htole32(0);
1034 bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap,
1035 BUS_DMASYNC_POSTWRITE);
1036 bus_dmamap_unload(sc->malo_dmat, bf->bf_dmamap);
1042 STAILQ_INSERT_TAIL(&txq->free, bf, bf_list);
1044 MALO_TXQ_UNLOCK(txq);
1050 * Deferred processing of transmit interrupt.
1053 malo_tx_proc(void *arg, int npending)
1055 struct malo_softc *sc = arg;
1056 struct ifnet *ifp = sc->malo_ifp;
1060 * Process each active queue.
1063 for (i = 0; i < MALO_NUM_TX_QUEUES; i++) {
1064 if (!STAILQ_EMPTY(&sc->malo_txq[i].active))
1065 nreaped += malo_tx_processq(sc, &sc->malo_txq[i]);
1069 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1076 malo_tx_start(struct malo_softc *sc, struct ieee80211_node *ni,
1077 struct malo_txbuf *bf, struct mbuf *m0)
1079 #define IEEE80211_DIR_DSTODS(wh) \
1080 ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS)
1081 #define IS_DATA_FRAME(wh) \
1082 ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK)) == IEEE80211_FC0_TYPE_DATA)
1083 int error, ismcast, iswep;
1084 int copyhdrlen, hdrlen, pktlen;
1085 struct ieee80211_frame *wh;
1086 struct ifnet *ifp = sc->malo_ifp;
1087 struct ieee80211com *ic = ifp->if_l2com;
1088 struct ieee80211vap *vap = ni->ni_vap;
1089 struct malo_txdesc *ds;
1090 struct malo_txrec *tr;
1091 struct malo_txq *txq;
1094 wh = mtod(m0, struct ieee80211_frame *);
1095 iswep = wh->i_fc[1] & IEEE80211_FC1_PROTECTED;
1096 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
1097 copyhdrlen = hdrlen = ieee80211_anyhdrsize(wh);
1098 pktlen = m0->m_pkthdr.len;
1099 if (IEEE80211_QOS_HAS_SEQ(wh)) {
1100 if (IEEE80211_DIR_DSTODS(wh)) {
1102 (((struct ieee80211_qosframe_addr4 *) wh)->i_qos);
1103 copyhdrlen -= sizeof(qos);
1106 (((struct ieee80211_qosframe *) wh)->i_qos);
1111 struct ieee80211_key *k;
1114 * Construct the 802.11 header+trailer for an encrypted
1115 * frame. The only reason this can fail is because of an
1116 * unknown or unsupported cipher/key type.
1118 * NB: we do this even though the firmware will ignore
1119 * what we've done for WEP and TKIP as we need the
1120 * ExtIV filled in for CCMP and this also adjusts
1121 * the headers which simplifies our work below.
1123 k = ieee80211_crypto_encap(ni, m0);
1126 * This can happen when the key is yanked after the
1127 * frame was queued. Just discard the frame; the
1128 * 802.11 layer counts failures and provides
1129 * debugging/diagnostics.
1136 * Adjust the packet length for the crypto additions
1137 * done during encap and any other bits that the f/w
1138 * will add later on.
1140 pktlen = m0->m_pkthdr.len;
1142 /* packet header may have moved, reset our local pointer */
1143 wh = mtod(m0, struct ieee80211_frame *);
1146 if (ieee80211_radiotap_active_vap(vap)) {
1147 sc->malo_tx_th.wt_flags = 0; /* XXX */
1149 sc->malo_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_WEP;
1150 sc->malo_tx_th.wt_txpower = ni->ni_txpower;
1151 sc->malo_tx_th.wt_antenna = sc->malo_txantenna;
1153 ieee80211_radiotap_tx(vap, m0);
1157 * Copy up/down the 802.11 header; the firmware requires
1158 * we present a 2-byte payload length followed by a
1159 * 4-address header (w/o QoS), followed (optionally) by
1160 * any WEP/ExtIV header (but only filled in for CCMP).
1161 * We are assured the mbuf has sufficient headroom to
1162 * prepend in-place by the setup of ic_headroom in
1165 if (hdrlen < sizeof(struct malo_txrec)) {
1166 const int space = sizeof(struct malo_txrec) - hdrlen;
1167 if (M_LEADINGSPACE(m0) < space) {
1168 /* NB: should never happen */
1169 device_printf(sc->malo_dev,
1170 "not enough headroom, need %d found %zd, "
1171 "m_flags 0x%x m_len %d\n",
1172 space, M_LEADINGSPACE(m0), m0->m_flags, m0->m_len);
1173 ieee80211_dump_pkt(ic,
1174 mtod(m0, const uint8_t *), m0->m_len, 0, -1);
1179 M_PREPEND(m0, space, M_NOWAIT);
1181 tr = mtod(m0, struct malo_txrec *);
1182 if (wh != (struct ieee80211_frame *) &tr->wh)
1183 ovbcopy(wh, &tr->wh, hdrlen);
1185 * Note: the "firmware length" is actually the length of the fully
1186 * formed "802.11 payload". That is, it's everything except for
1187 * the 802.11 header. In particular this includes all crypto
1188 * material including the MIC!
1190 tr->fwlen = htole16(pktlen - hdrlen);
1193 * Load the DMA map so any coalescing is done. This
1194 * also calculates the number of descriptors we need.
1196 error = malo_tx_dmasetup(sc, bf, m0);
1199 bf->bf_node = ni; /* NB: held reference */
1200 m0 = bf->bf_m; /* NB: may have changed */
1201 tr = mtod(m0, struct malo_txrec *);
1202 wh = (struct ieee80211_frame *)&tr->wh;
1205 * Formulate tx descriptor.
1210 ds->qosctrl = qos; /* NB: already little-endian */
1211 ds->pktptr = htole32(bf->bf_segs[0].ds_addr);
1212 ds->pktlen = htole16(bf->bf_segs[0].ds_len);
1213 /* NB: pPhysNext setup once, don't touch */
1214 ds->datarate = IS_DATA_FRAME(wh) ? 1 : 0;
1215 ds->sap_pktinfo = 0;
1219 * Select transmit rate.
1221 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
1222 case IEEE80211_FC0_TYPE_MGT:
1223 sc->malo_stats.mst_tx_mgmt++;
1225 case IEEE80211_FC0_TYPE_CTL:
1228 case IEEE80211_FC0_TYPE_DATA:
1229 ds->txpriority = txq->qnum;
1232 if_printf(ifp, "bogus frame type 0x%x (%s)\n",
1233 wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK, __func__);
1240 if (IFF_DUMPPKTS_XMIT(sc))
1241 ieee80211_dump_pkt(ic,
1242 mtod(m0, const uint8_t *)+sizeof(uint16_t),
1243 m0->m_len - sizeof(uint16_t), ds->datarate, -1);
1247 if (!IS_DATA_FRAME(wh))
1248 ds->status |= htole32(1);
1249 ds->status |= htole32(MALO_TXD_STATUS_FW_OWNED);
1250 STAILQ_INSERT_TAIL(&txq->active, bf, bf_list);
1251 MALO_TXDESC_SYNC(txq, ds, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
1255 MALO_TXQ_UNLOCK(txq);
1257 #undef IEEE80211_DIR_DSTODS
1261 malo_start(struct ifnet *ifp)
1263 struct malo_softc *sc = ifp->if_softc;
1264 struct ieee80211_node *ni;
1265 struct malo_txq *txq = &sc->malo_txq[0];
1266 struct malo_txbuf *bf = NULL;
1270 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || sc->malo_invalid)
1274 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1277 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1278 bf = malo_getbuf(sc, txq);
1280 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1282 /* XXX blocks other traffic */
1283 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1284 sc->malo_stats.mst_tx_qstop++;
1288 * Pass the frame to the h/w for transmission.
1290 if (malo_tx_start(sc, ni, bf, m)) {
1296 STAILQ_INSERT_HEAD(&txq->free, bf, bf_list);
1297 MALO_TXQ_UNLOCK(txq);
1299 ieee80211_free_node(ni);
1304 if (nqueued >= malo_txcoalesce) {
1306 * Poke the firmware to process queued frames;
1307 * see below about (lack of) locking.
1310 malo_hal_txstart(sc->malo_mh, 0/*XXX*/);
1316 * NB: We don't need to lock against tx done because
1317 * this just prods the firmware to check the transmit
1318 * descriptors. The firmware will also start fetching
1319 * descriptors by itself if it notices new ones are
1320 * present when it goes to deliver a tx done interrupt
1321 * to the host. So if we race with tx done processing
1322 * it's ok. Delivering the kick here rather than in
1323 * malo_tx_start is an optimization to avoid poking the
1324 * firmware for each packet.
1326 * NB: the queue id isn't used so 0 is ok.
1328 malo_hal_txstart(sc->malo_mh, 0/*XXX*/);
1333 malo_watchdog(void *arg)
1335 struct malo_softc *sc;
1339 callout_reset(&sc->malo_watchdog_timer, hz, malo_watchdog, sc);
1340 if (sc->malo_timer == 0 || --sc->malo_timer > 0)
1344 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) && !sc->malo_invalid) {
1345 if_printf(ifp, "watchdog timeout\n");
1347 /* XXX no way to reset h/w. now */
1350 sc->malo_stats.mst_watchdog++;
1355 malo_hal_reset(struct malo_softc *sc)
1357 static int first = 0;
1358 struct ifnet *ifp = sc->malo_ifp;
1359 struct ieee80211com *ic = ifp->if_l2com;
1360 struct malo_hal *mh = sc->malo_mh;
1364 * NB: when the device firstly is initialized, sometimes
1365 * firmware could override rx/tx dma registers so we re-set
1366 * these values once.
1368 malo_hal_set_rxtxdma(sc);
1372 malo_hal_setantenna(mh, MHA_ANTENNATYPE_RX, sc->malo_rxantenna);
1373 malo_hal_setantenna(mh, MHA_ANTENNATYPE_TX, sc->malo_txantenna);
1374 malo_hal_setradio(mh, 1, MHP_AUTO_PREAMBLE);
1375 malo_chan_set(sc, ic->ic_curchan);
1377 /* XXX needs other stuffs? */
1382 static __inline struct mbuf *
1383 malo_getrxmbuf(struct malo_softc *sc, struct malo_rxbuf *bf)
1389 /* XXX don't need mbuf, just dma buffer */
1390 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1392 sc->malo_stats.mst_rx_nombuf++; /* XXX */
1395 error = bus_dmamap_load(sc->malo_dmat, bf->bf_dmamap,
1396 mtod(m, caddr_t), MJUMPAGESIZE,
1397 malo_load_cb, &paddr, BUS_DMA_NOWAIT);
1399 if_printf(sc->malo_ifp,
1400 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1404 bf->bf_data = paddr;
1405 bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE);
1411 malo_rxbuf_init(struct malo_softc *sc, struct malo_rxbuf *bf)
1413 struct malo_rxdesc *ds;
1416 if (bf->bf_m == NULL) {
1417 bf->bf_m = malo_getrxmbuf(sc, bf);
1418 if (bf->bf_m == NULL) {
1419 /* mark descriptor to be skipped */
1420 ds->rxcontrol = MALO_RXD_CTRL_OS_OWN;
1421 /* NB: don't need PREREAD */
1422 MALO_RXDESC_SYNC(sc, ds, BUS_DMASYNC_PREWRITE);
1432 ds->status = MALO_RXD_STATUS_IDLE;
1434 ds->pktlen = htole16(MALO_RXSIZE);
1436 ds->physbuffdata = htole32(bf->bf_data);
1437 /* NB: don't touch pPhysNext, set once */
1438 ds->rxcontrol = MALO_RXD_CTRL_DRIVER_OWN;
1439 MALO_RXDESC_SYNC(sc, ds, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
1445 * Setup the rx data structures. This should only be done once or we may get
1446 * out of sync with the firmware.
1449 malo_startrecv(struct malo_softc *sc)
1451 struct malo_rxbuf *bf, *prev;
1452 struct malo_rxdesc *ds;
1454 if (sc->malo_recvsetup == 1) {
1455 malo_mode_init(sc); /* set filters, etc. */
1460 STAILQ_FOREACH(bf, &sc->malo_rxbuf, bf_list) {
1461 int error = malo_rxbuf_init(sc, bf);
1463 DPRINTF(sc, MALO_DEBUG_RECV,
1464 "%s: malo_rxbuf_init failed %d\n",
1470 ds->physnext = htole32(bf->bf_daddr);
1477 htole32(STAILQ_FIRST(&sc->malo_rxbuf)->bf_daddr);
1480 sc->malo_recvsetup = 1;
1482 malo_mode_init(sc); /* set filters, etc. */
1488 malo_init_locked(struct malo_softc *sc)
1490 struct ifnet *ifp = sc->malo_ifp;
1491 struct malo_hal *mh = sc->malo_mh;
1494 DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags 0x%x\n",
1495 __func__, ifp->if_flags);
1497 MALO_LOCK_ASSERT(sc);
1500 * Stop anything previously setup. This is safe whether this is
1501 * the first time through or not.
1503 malo_stop_locked(ifp, 0);
1506 * Push state to the firmware.
1508 if (!malo_hal_reset(sc)) {
1509 if_printf(ifp, "%s: unable to reset hardware\n", __func__);
1514 * Setup recv (once); transmit is already good to go.
1516 error = malo_startrecv(sc);
1518 if_printf(ifp, "%s: unable to start recv logic, error %d\n",
1524 * Enable interrupts.
1526 sc->malo_imask = MALO_A2HRIC_BIT_RX_RDY
1527 | MALO_A2HRIC_BIT_TX_DONE
1528 | MALO_A2HRIC_BIT_OPC_DONE
1529 | MALO_A2HRIC_BIT_MAC_EVENT
1530 | MALO_A2HRIC_BIT_RX_PROBLEM
1531 | MALO_A2HRIC_BIT_ICV_ERROR
1532 | MALO_A2HRIC_BIT_RADAR_DETECT
1533 | MALO_A2HRIC_BIT_CHAN_SWITCH;
1535 ifp->if_drv_flags |= IFF_DRV_RUNNING;
1536 malo_hal_intrset(mh, sc->malo_imask);
1537 callout_reset(&sc->malo_watchdog_timer, hz, malo_watchdog, sc);
1541 malo_init(void *arg)
1543 struct malo_softc *sc = (struct malo_softc *) arg;
1544 struct ifnet *ifp = sc->malo_ifp;
1545 struct ieee80211com *ic = ifp->if_l2com;
1547 DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags 0x%x\n",
1548 __func__, ifp->if_flags);
1551 malo_init_locked(sc);
1555 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1556 ieee80211_start_all(ic); /* start all vap's */
1560 * Set the multicast filter contents into the hardware.
1563 malo_setmcastfilter(struct malo_softc *sc)
1565 struct ifnet *ifp = sc->malo_ifp;
1566 struct ieee80211com *ic = ifp->if_l2com;
1567 struct ifmultiaddr *ifma;
1568 uint8_t macs[IEEE80211_ADDR_LEN * MALO_HAL_MCAST_MAX];
1575 if (ic->ic_opmode == IEEE80211_M_MONITOR ||
1576 (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)))
1579 if_maddr_rlock(ifp);
1580 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1581 if (ifma->ifma_addr->sa_family != AF_LINK)
1584 if (nmc == MALO_HAL_MCAST_MAX) {
1585 ifp->if_flags |= IFF_ALLMULTI;
1586 if_maddr_runlock(ifp);
1589 IEEE80211_ADDR_COPY(mp,
1590 LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
1592 mp += IEEE80211_ADDR_LEN, nmc++;
1594 if_maddr_runlock(ifp);
1596 malo_hal_setmcast(sc->malo_mh, nmc, macs);
1600 * XXX we don't know how to set the f/w for supporting
1601 * IFF_ALLMULTI | IFF_PROMISC cases
1607 malo_mode_init(struct malo_softc *sc)
1609 struct ifnet *ifp = sc->malo_ifp;
1610 struct ieee80211com *ic = ifp->if_l2com;
1611 struct malo_hal *mh = sc->malo_mh;
1614 * NB: Ignore promisc in hostap mode; it's set by the
1615 * bridge. This is wrong but we have no way to
1616 * identify internal requests (from the bridge)
1617 * versus external requests such as for tcpdump.
1619 malo_hal_setpromisc(mh, (ifp->if_flags & IFF_PROMISC) &&
1620 ic->ic_opmode != IEEE80211_M_HOSTAP);
1621 malo_setmcastfilter(sc);
1627 malo_tx_draintxq(struct malo_softc *sc, struct malo_txq *txq)
1629 struct ieee80211_node *ni;
1630 struct malo_txbuf *bf;
1634 * NB: this assumes output has been stopped and
1635 * we do not need to block malo_tx_tasklet
1637 for (ix = 0;; ix++) {
1639 bf = STAILQ_FIRST(&txq->active);
1641 MALO_TXQ_UNLOCK(txq);
1644 STAILQ_REMOVE_HEAD(&txq->active, bf_list);
1645 MALO_TXQ_UNLOCK(txq);
1647 if (sc->malo_debug & MALO_DEBUG_RESET) {
1648 struct ifnet *ifp = sc->malo_ifp;
1649 struct ieee80211com *ic = ifp->if_l2com;
1650 const struct malo_txrec *tr =
1651 mtod(bf->bf_m, const struct malo_txrec *);
1652 malo_printtxbuf(bf, txq->qnum, ix);
1653 ieee80211_dump_pkt(ic, (const uint8_t *)&tr->wh,
1654 bf->bf_m->m_len - sizeof(tr->fwlen), 0, -1);
1656 #endif /* MALO_DEBUG */
1657 bus_dmamap_unload(sc->malo_dmat, bf->bf_dmamap);
1662 * Reclaim node reference.
1664 ieee80211_free_node(ni);
1670 STAILQ_INSERT_TAIL(&txq->free, bf, bf_list);
1672 MALO_TXQ_UNLOCK(txq);
1677 malo_stop_locked(struct ifnet *ifp, int disable)
1679 struct malo_softc *sc = ifp->if_softc;
1680 struct malo_hal *mh = sc->malo_mh;
1683 DPRINTF(sc, MALO_DEBUG_ANY, "%s: invalid %u if_flags 0x%x\n",
1684 __func__, sc->malo_invalid, ifp->if_flags);
1686 MALO_LOCK_ASSERT(sc);
1688 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
1692 * Shutdown the hardware and driver:
1693 * disable interrupts
1694 * turn off the radio
1695 * drain and release tx queues
1697 * Note that some of this work is not possible if the hardware
1698 * is gone (invalid).
1700 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1701 callout_stop(&sc->malo_watchdog_timer);
1703 /* diable interrupt. */
1704 malo_hal_intrset(mh, 0);
1705 /* turn off the radio. */
1706 malo_hal_setradio(mh, 0, MHP_AUTO_PREAMBLE);
1708 /* drain and release tx queues. */
1709 for (i = 0; i < MALO_NUM_TX_QUEUES; i++)
1710 malo_tx_draintxq(sc, &sc->malo_txq[i]);
1714 malo_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1716 #define MALO_IS_RUNNING(ifp) \
1717 ((ifp->if_flags & IFF_UP) && (ifp->if_drv_flags & IFF_DRV_RUNNING))
1718 struct malo_softc *sc = ifp->if_softc;
1719 struct ieee80211com *ic = ifp->if_l2com;
1720 struct ifreq *ifr = (struct ifreq *) data;
1721 int error = 0, startall = 0;
1726 if (MALO_IS_RUNNING(ifp)) {
1728 * To avoid rescanning another access point,
1729 * do not call malo_init() here. Instead,
1730 * only reflect promisc mode settings.
1733 } else if (ifp->if_flags & IFF_UP) {
1735 * Beware of being called during attach/detach
1736 * to reset promiscuous mode. In that case we
1737 * will still be marked UP but not RUNNING.
1738 * However trying to re-init the interface
1739 * is the wrong thing to do as we've already
1740 * torn down much of our state. There's
1741 * probably a better way to deal with this.
1743 if (!sc->malo_invalid) {
1744 malo_init_locked(sc);
1748 malo_stop_locked(ifp, 1);
1752 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1755 error = ether_ioctl(ifp, cmd, data);
1761 ieee80211_start_all(ic);
1763 #undef MALO_IS_RUNNING
1767 * Callback from the 802.11 layer to update the slot time
1768 * based on the current setting. We use it to notify the
1769 * firmware of ERP changes and the f/w takes care of things
1770 * like slot time and preamble.
1773 malo_updateslot(struct ifnet *ifp)
1775 struct malo_softc *sc = ifp->if_softc;
1776 struct ieee80211com *ic = ifp->if_l2com;
1777 struct malo_hal *mh = sc->malo_mh;
1780 /* NB: can be called early; suppress needless cmds */
1781 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
1784 DPRINTF(sc, MALO_DEBUG_RESET,
1785 "%s: chan %u MHz/flags 0x%x %s slot, (ic_flags 0x%x)\n",
1786 __func__, ic->ic_curchan->ic_freq, ic->ic_curchan->ic_flags,
1787 ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long", ic->ic_flags);
1789 if (ic->ic_flags & IEEE80211_F_SHSLOT)
1790 error = malo_hal_set_slot(mh, 1);
1792 error = malo_hal_set_slot(mh, 0);
1795 device_printf(sc->malo_dev, "setting %s slot failed\n",
1796 ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long");
1800 malo_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1802 struct ieee80211com *ic = vap->iv_ic;
1803 struct malo_softc *sc = ic->ic_ifp->if_softc;
1804 struct malo_hal *mh = sc->malo_mh;
1807 DPRINTF(sc, MALO_DEBUG_STATE, "%s: %s -> %s\n", __func__,
1808 ieee80211_state_name[vap->iv_state],
1809 ieee80211_state_name[nstate]);
1812 * Invoke the net80211 layer first so iv_bss is setup.
1814 error = MALO_VAP(vap)->malo_newstate(vap, nstate, arg);
1818 if (nstate == IEEE80211_S_RUN && vap->iv_state != IEEE80211_S_RUN) {
1819 struct ieee80211_node *ni = vap->iv_bss;
1820 enum ieee80211_phymode mode = ieee80211_chan2mode(ni->ni_chan);
1821 const struct ieee80211_txparam *tp = &vap->iv_txparms[mode];
1823 DPRINTF(sc, MALO_DEBUG_STATE,
1824 "%s: %s(RUN): iv_flags 0x%08x bintvl %d bssid %s "
1825 "capinfo 0x%04x chan %d associd 0x%x mode %d rate %d\n",
1826 vap->iv_ifp->if_xname, __func__, vap->iv_flags,
1827 ni->ni_intval, ether_sprintf(ni->ni_bssid), ni->ni_capinfo,
1828 ieee80211_chan2ieee(ic, ic->ic_curchan),
1829 ni->ni_associd, mode, tp->ucastrate);
1831 malo_hal_setradio(mh, 1,
1832 (ic->ic_flags & IEEE80211_F_SHPREAMBLE) ?
1833 MHP_SHORT_PREAMBLE : MHP_LONG_PREAMBLE);
1834 malo_hal_setassocid(sc->malo_mh, ni->ni_bssid, ni->ni_associd);
1835 malo_hal_set_rate(mh, mode,
1836 tp->ucastrate == IEEE80211_FIXED_RATE_NONE ?
1837 0 : malo_fix2rate(tp->ucastrate));
1843 malo_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1844 const struct ieee80211_bpf_params *params)
1846 struct ieee80211com *ic = ni->ni_ic;
1847 struct ifnet *ifp = ic->ic_ifp;
1848 struct malo_softc *sc = ifp->if_softc;
1849 struct malo_txbuf *bf;
1850 struct malo_txq *txq;
1852 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || sc->malo_invalid) {
1853 ieee80211_free_node(ni);
1859 * Grab a TX buffer and associated resources. Note that we depend
1860 * on the classification by the 802.11 layer to get to the right h/w
1861 * queue. Management frames must ALWAYS go on queue 1 but we
1862 * cannot just force that here because we may receive non-mgt frames.
1864 txq = &sc->malo_txq[0];
1865 bf = malo_getbuf(sc, txq);
1867 /* XXX blocks other traffic */
1868 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1869 ieee80211_free_node(ni);
1875 * Pass the frame to the h/w for transmission.
1877 if (malo_tx_start(sc, ni, bf, m) != 0) {
1882 STAILQ_INSERT_HEAD(&txq->free, bf, bf_list);
1884 MALO_TXQ_UNLOCK(txq);
1886 ieee80211_free_node(ni);
1887 return EIO; /* XXX */
1891 * NB: We don't need to lock against tx done because this just
1892 * prods the firmware to check the transmit descriptors. The firmware
1893 * will also start fetching descriptors by itself if it notices
1894 * new ones are present when it goes to deliver a tx done interrupt
1895 * to the host. So if we race with tx done processing it's ok.
1896 * Delivering the kick here rather than in malo_tx_start is
1897 * an optimization to avoid poking the firmware for each packet.
1899 * NB: the queue id isn't used so 0 is ok.
1901 malo_hal_txstart(sc->malo_mh, 0/*XXX*/);
1907 malo_sysctlattach(struct malo_softc *sc)
1910 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->malo_dev);
1911 struct sysctl_oid *tree = device_get_sysctl_tree(sc->malo_dev);
1913 sc->malo_debug = malo_debug;
1914 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1915 "debug", CTLFLAG_RW, &sc->malo_debug, 0,
1916 "control debugging printfs");
1921 malo_announce(struct malo_softc *sc)
1923 struct ifnet *ifp = sc->malo_ifp;
1925 if_printf(ifp, "versions [hw %d fw %d.%d.%d.%d] (regioncode %d)\n",
1926 sc->malo_hwspecs.hwversion,
1927 (sc->malo_hwspecs.fw_releasenum >> 24) & 0xff,
1928 (sc->malo_hwspecs.fw_releasenum >> 16) & 0xff,
1929 (sc->malo_hwspecs.fw_releasenum >> 8) & 0xff,
1930 (sc->malo_hwspecs.fw_releasenum >> 0) & 0xff,
1931 sc->malo_hwspecs.regioncode);
1933 if (bootverbose || malo_rxbuf != MALO_RXBUF)
1934 if_printf(ifp, "using %u rx buffers\n", malo_rxbuf);
1935 if (bootverbose || malo_txbuf != MALO_TXBUF)
1936 if_printf(ifp, "using %u tx buffers\n", malo_txbuf);
1940 * Convert net80211 channel to a HAL channel.
1943 malo_mapchan(struct malo_hal_channel *hc, const struct ieee80211_channel *chan)
1945 hc->channel = chan->ic_ieee;
1947 *(uint32_t *)&hc->flags = 0;
1948 if (IEEE80211_IS_CHAN_2GHZ(chan))
1949 hc->flags.freqband = MALO_FREQ_BAND_2DOT4GHZ;
1953 * Set/change channels. If the channel is really being changed,
1954 * it's done by reseting the chip. To accomplish this we must
1955 * first cleanup any pending DMA, then restart stuff after a la
1959 malo_chan_set(struct malo_softc *sc, struct ieee80211_channel *chan)
1961 struct malo_hal *mh = sc->malo_mh;
1962 struct malo_hal_channel hchan;
1964 DPRINTF(sc, MALO_DEBUG_RESET, "%s: chan %u MHz/flags 0x%x\n",
1965 __func__, chan->ic_freq, chan->ic_flags);
1968 * Convert to a HAL channel description with the flags constrained
1969 * to reflect the current operating mode.
1971 malo_mapchan(&hchan, chan);
1972 malo_hal_intrset(mh, 0); /* disable interrupts */
1973 malo_hal_setchannel(mh, &hchan);
1974 malo_hal_settxpower(mh, &hchan);
1977 * Update internal state.
1979 sc->malo_tx_th.wt_chan_freq = htole16(chan->ic_freq);
1980 sc->malo_rx_th.wr_chan_freq = htole16(chan->ic_freq);
1981 if (IEEE80211_IS_CHAN_ANYG(chan)) {
1982 sc->malo_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_G);
1983 sc->malo_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_G);
1985 sc->malo_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_B);
1986 sc->malo_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_B);
1988 sc->malo_curchan = hchan;
1989 malo_hal_intrset(mh, sc->malo_imask);
1995 malo_scan_start(struct ieee80211com *ic)
1997 struct ifnet *ifp = ic->ic_ifp;
1998 struct malo_softc *sc = ifp->if_softc;
2000 DPRINTF(sc, MALO_DEBUG_STATE, "%s\n", __func__);
2004 malo_scan_end(struct ieee80211com *ic)
2006 struct ifnet *ifp = ic->ic_ifp;
2007 struct malo_softc *sc = ifp->if_softc;
2009 DPRINTF(sc, MALO_DEBUG_STATE, "%s\n", __func__);
2013 malo_set_channel(struct ieee80211com *ic)
2015 struct ifnet *ifp = ic->ic_ifp;
2016 struct malo_softc *sc = ifp->if_softc;
2018 (void) malo_chan_set(sc, ic->ic_curchan);
2022 malo_rx_proc(void *arg, int npending)
2024 #define IEEE80211_DIR_DSTODS(wh) \
2025 ((((const struct ieee80211_frame *)wh)->i_fc[1] & \
2026 IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS)
2027 struct malo_softc *sc = arg;
2028 struct ifnet *ifp = sc->malo_ifp;
2029 struct ieee80211com *ic = ifp->if_l2com;
2030 struct malo_rxbuf *bf;
2031 struct malo_rxdesc *ds;
2032 struct mbuf *m, *mnew;
2033 struct ieee80211_qosframe *wh;
2034 struct ieee80211_qosframe_addr4 *wh4;
2035 struct ieee80211_node *ni;
2036 int off, len, hdrlen, pktlen, rssi, ntodo;
2037 uint8_t *data, status;
2038 uint32_t readptr, writeptr;
2040 DPRINTF(sc, MALO_DEBUG_RX_PROC,
2041 "%s: pending %u rdptr(0x%x) 0x%x wrptr(0x%x) 0x%x\n",
2043 sc->malo_hwspecs.rxdesc_read,
2044 malo_bar0_read4(sc, sc->malo_hwspecs.rxdesc_read),
2045 sc->malo_hwspecs.rxdesc_write,
2046 malo_bar0_read4(sc, sc->malo_hwspecs.rxdesc_write));
2048 readptr = malo_bar0_read4(sc, sc->malo_hwspecs.rxdesc_read);
2049 writeptr = malo_bar0_read4(sc, sc->malo_hwspecs.rxdesc_write);
2050 if (readptr == writeptr)
2053 bf = sc->malo_rxnext;
2054 for (ntodo = malo_rxquota; ntodo > 0 && readptr != writeptr; ntodo--) {
2056 bf = STAILQ_FIRST(&sc->malo_rxbuf);
2060 if (bf->bf_m == NULL) {
2062 * If data allocation failed previously there
2063 * will be no buffer; try again to re-populate it.
2064 * Note the firmware will not advance to the next
2065 * descriptor with a dma buffer so we must mimic
2066 * this or we'll get out of sync.
2068 DPRINTF(sc, MALO_DEBUG_ANY,
2069 "%s: rx buf w/o dma memory\n", __func__);
2070 (void)malo_rxbuf_init(sc, bf);
2073 MALO_RXDESC_SYNC(sc, ds,
2074 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
2075 if (ds->rxcontrol != MALO_RXD_CTRL_DMA_OWN)
2078 readptr = le32toh(ds->physnext);
2081 if (sc->malo_debug & MALO_DEBUG_RECV_DESC)
2082 malo_printrxbuf(bf, 0);
2084 status = ds->status;
2085 if (status & MALO_RXD_STATUS_DECRYPT_ERR_MASK) {
2090 * Sync the data buffer.
2092 len = le16toh(ds->pktlen);
2093 bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap,
2094 BUS_DMASYNC_POSTREAD);
2096 * The 802.11 header is provided all or in part at the front;
2097 * use it to calculate the true size of the header that we'll
2098 * construct below. We use this to figure out where to copy
2099 * payload prior to constructing the header.
2102 data = mtod(m, uint8_t *);
2103 hdrlen = ieee80211_anyhdrsize(data + sizeof(uint16_t));
2104 off = sizeof(uint16_t) + sizeof(struct ieee80211_frame_addr4);
2107 * Calculate RSSI. XXX wrong
2109 rssi = 2 * ((int) ds->snr - ds->nf); /* NB: .5 dBm */
2113 pktlen = hdrlen + (len - off);
2115 * NB: we know our frame is at least as large as
2116 * IEEE80211_MIN_LEN because there is a 4-address frame at
2117 * the front. Hence there's no need to vet the packet length.
2118 * If the frame in fact is too small it should be discarded
2119 * at the net80211 layer.
2122 /* XXX don't need mbuf, just dma buffer */
2123 mnew = malo_getrxmbuf(sc, bf);
2129 * Attach the dma buffer to the mbuf; malo_rxbuf_init will
2130 * re-setup the rx descriptor using the replacement dma
2131 * buffer we just installed above.
2134 m->m_data += off - hdrlen;
2135 m->m_pkthdr.len = m->m_len = pktlen;
2136 m->m_pkthdr.rcvif = ifp;
2139 * Piece 802.11 header together.
2141 wh = mtod(m, struct ieee80211_qosframe *);
2142 /* NB: don't need to do this sometimes but ... */
2143 /* XXX special case so we can memcpy after m_devget? */
2144 ovbcopy(data + sizeof(uint16_t), wh, hdrlen);
2145 if (IEEE80211_QOS_HAS_SEQ(wh)) {
2146 if (IEEE80211_DIR_DSTODS(wh)) {
2148 struct ieee80211_qosframe_addr4*);
2149 *(uint16_t *)wh4->i_qos = ds->qosctrl;
2151 *(uint16_t *)wh->i_qos = ds->qosctrl;
2154 if (ieee80211_radiotap_active(ic)) {
2155 sc->malo_rx_th.wr_flags = 0;
2156 sc->malo_rx_th.wr_rate = ds->rate;
2157 sc->malo_rx_th.wr_antsignal = rssi;
2158 sc->malo_rx_th.wr_antnoise = ds->nf;
2161 if (IFF_DUMPPKTS_RECV(sc, wh)) {
2162 ieee80211_dump_pkt(ic, mtod(m, caddr_t),
2163 len, ds->rate, rssi);
2169 ni = ieee80211_find_rxnode(ic,
2170 (struct ieee80211_frame_min *)wh);
2172 (void) ieee80211_input(ni, m, rssi, ds->nf);
2173 ieee80211_free_node(ni);
2175 (void) ieee80211_input_all(ic, m, rssi, ds->nf);
2177 /* NB: ignore ENOMEM so we process more descriptors */
2178 (void) malo_rxbuf_init(sc, bf);
2179 bf = STAILQ_NEXT(bf, bf_list);
2182 malo_bar0_write4(sc, sc->malo_hwspecs.rxdesc_read, readptr);
2183 sc->malo_rxnext = bf;
2185 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
2186 !IFQ_IS_EMPTY(&ifp->if_snd))
2188 #undef IEEE80211_DIR_DSTODS
2192 malo_stop(struct ifnet *ifp, int disable)
2194 struct malo_softc *sc = ifp->if_softc;
2197 malo_stop_locked(ifp, disable);
2202 * Reclaim all tx queue resources.
2205 malo_tx_cleanup(struct malo_softc *sc)
2209 for (i = 0; i < MALO_NUM_TX_QUEUES; i++)
2210 malo_tx_cleanupq(sc, &sc->malo_txq[i]);
2214 malo_detach(struct malo_softc *sc)
2216 struct ifnet *ifp = sc->malo_ifp;
2217 struct ieee80211com *ic = ifp->if_l2com;
2219 DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags %x\n",
2220 __func__, ifp->if_flags);
2224 if (sc->malo_tq != NULL) {
2225 taskqueue_drain(sc->malo_tq, &sc->malo_rxtask);
2226 taskqueue_drain(sc->malo_tq, &sc->malo_txtask);
2227 taskqueue_free(sc->malo_tq);
2232 * NB: the order of these is important:
2233 * o call the 802.11 layer before detaching the hal to
2234 * insure callbacks into the driver to delete global
2235 * key cache entries can be handled
2236 * o reclaim the tx queue data structures after calling
2237 * the 802.11 layer as we'll get called back to reclaim
2238 * node state and potentially want to use them
2239 * o to cleanup the tx queues the hal is called, so detach
2241 * Other than that, it's straightforward...
2243 ieee80211_ifdetach(ic);
2244 callout_drain(&sc->malo_watchdog_timer);
2245 malo_dma_cleanup(sc);
2246 malo_tx_cleanup(sc);
2247 malo_hal_detach(sc->malo_mh);
2250 MALO_LOCK_DESTROY(sc);
2256 malo_shutdown(struct malo_softc *sc)
2258 malo_stop(sc->malo_ifp, 1);
2262 malo_suspend(struct malo_softc *sc)
2264 struct ifnet *ifp = sc->malo_ifp;
2266 DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags %x\n",
2267 __func__, ifp->if_flags);
2273 malo_resume(struct malo_softc *sc)
2275 struct ifnet *ifp = sc->malo_ifp;
2277 DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags %x\n",
2278 __func__, ifp->if_flags);
2280 if (ifp->if_flags & IFF_UP)