if_malo.c revision 177595
1177595Sweongyo/*- 2177595Sweongyo * Copyright (c) 2008 Weongyo Jeong <weongyo@freebsd.org> 3177595Sweongyo * Copyright (c) 2007 Marvell Semiconductor, Inc. 4177595Sweongyo * Copyright (c) 2007 Sam Leffler, Errno Consulting 5177595Sweongyo * All rights reserved. 6177595Sweongyo * 7177595Sweongyo * Redistribution and use in source and binary forms, with or without 8177595Sweongyo * modification, are permitted provided that the following conditions 9177595Sweongyo * are met: 10177595Sweongyo * 1. Redistributions of source code must retain the above copyright 11177595Sweongyo * notice, this list of conditions and the following disclaimer, 12177595Sweongyo * without modification. 13177595Sweongyo * 2. Redistributions in binary form must reproduce at minimum a disclaimer 14177595Sweongyo * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 15177595Sweongyo * redistribution must be conditioned upon including a substantially 16177595Sweongyo * similar Disclaimer requirement for further binary redistribution. 17177595Sweongyo * 18177595Sweongyo * NO WARRANTY 19177595Sweongyo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20177595Sweongyo * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21177595Sweongyo * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 22177595Sweongyo * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 23177595Sweongyo * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 24177595Sweongyo * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25177595Sweongyo * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26177595Sweongyo * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 27177595Sweongyo * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28177595Sweongyo * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 29177595Sweongyo * THE POSSIBILITY OF SUCH DAMAGES. 30177595Sweongyo */ 31177595Sweongyo 32177595Sweongyo#include <sys/cdefs.h> 33177595Sweongyo#ifdef __FreeBSD__ 34177595Sweongyo__FBSDID("$FreeBSD: head/sys/dev/malo/if_malo.c 177595 2008-03-25 06:32:33Z weongyo $"); 35177595Sweongyo#endif 36177595Sweongyo 37177595Sweongyo#include <sys/param.h> 38177595Sweongyo#include <sys/endian.h> 39177595Sweongyo#include <sys/kernel.h> 40177595Sweongyo#include <sys/socket.h> 41177595Sweongyo#include <sys/sockio.h> 42177595Sweongyo#include <sys/sysctl.h> 43177595Sweongyo#include <sys/taskqueue.h> 44177595Sweongyo 45177595Sweongyo#include <machine/bus.h> 46177595Sweongyo#include <sys/bus.h> 47177595Sweongyo 48177595Sweongyo#include <net/if.h> 49177595Sweongyo#include <net/if_dl.h> 50177595Sweongyo#include <net/if_media.h> 51177595Sweongyo#include <net/if_types.h> 52177595Sweongyo#include <net/ethernet.h> 53177595Sweongyo 54177595Sweongyo#include <net80211/ieee80211_var.h> 55177595Sweongyo#include <net80211/ieee80211_regdomain.h> 56177595Sweongyo 57177595Sweongyo#include <net/bpf.h> 58177595Sweongyo 59177595Sweongyo#include <dev/malo/if_malo.h> 60177595Sweongyo 61177595SweongyoSYSCTL_NODE(_hw, OID_AUTO, malo, CTLFLAG_RD, 0, 62177595Sweongyo "Marvell 88w8335 driver parameters"); 63177595Sweongyo 64177595Sweongyostatic int malo_txcoalesce = 8; /* # tx pkts to q before poking f/w*/ 65177595SweongyoSYSCTL_INT(_hw_malo, OID_AUTO, txcoalesce, CTLFLAG_RW, &malo_txcoalesce, 66177595Sweongyo 0, "tx buffers to send at once"); 67177595SweongyoTUNABLE_INT("hw.malo.txcoalesce", &malo_txcoalesce); 68177595Sweongyostatic int malo_rxbuf = MALO_RXBUF; /* # rx buffers to allocate */ 69177595SweongyoSYSCTL_INT(_hw_malo, OID_AUTO, rxbuf, CTLFLAG_RW, &malo_rxbuf, 70177595Sweongyo 0, "rx buffers allocated"); 71177595SweongyoTUNABLE_INT("hw.malo.rxbuf", &malo_rxbuf); 72177595Sweongyostatic int malo_rxquota = MALO_RXBUF; /* # max buffers to process */ 73177595SweongyoSYSCTL_INT(_hw_malo, OID_AUTO, rxquota, CTLFLAG_RW, &malo_rxquota, 74177595Sweongyo 0, "max rx buffers to process per interrupt"); 75177595SweongyoTUNABLE_INT("hw.malo.rxquota", &malo_rxquota); 76177595Sweongyostatic int malo_txbuf = MALO_TXBUF; /* # tx buffers to allocate */ 77177595SweongyoSYSCTL_INT(_hw_malo, OID_AUTO, txbuf, CTLFLAG_RW, &malo_txbuf, 78177595Sweongyo 0, "tx buffers allocated"); 79177595SweongyoTUNABLE_INT("hw.malo.txbuf", &malo_txbuf); 80177595Sweongyo 81177595Sweongyo#ifdef MALO_DEBUG 82177595Sweongyostatic int malo_debug = 0; 83177595SweongyoSYSCTL_INT(_hw_malo, OID_AUTO, debug, CTLFLAG_RW, &malo_debug, 84177595Sweongyo 0, "control debugging printfs"); 85177595SweongyoTUNABLE_INT("hw.malo.debug", &malo_debug); 86177595Sweongyoenum { 87177595Sweongyo MALO_DEBUG_XMIT = 0x00000001, /* basic xmit operation */ 88177595Sweongyo MALO_DEBUG_XMIT_DESC = 0x00000002, /* xmit descriptors */ 89177595Sweongyo MALO_DEBUG_RECV = 0x00000004, /* basic recv operation */ 90177595Sweongyo MALO_DEBUG_RECV_DESC = 0x00000008, /* recv descriptors */ 91177595Sweongyo MALO_DEBUG_RESET = 0x00000010, /* reset processing */ 92177595Sweongyo MALO_DEBUG_INTR = 0x00000040, /* ISR */ 93177595Sweongyo MALO_DEBUG_TX_PROC = 0x00000080, /* tx ISR proc */ 94177595Sweongyo MALO_DEBUG_RX_PROC = 0x00000100, /* rx ISR proc */ 95177595Sweongyo MALO_DEBUG_STATE = 0x00000400, /* 802.11 state transitions */ 96177595Sweongyo MALO_DEBUG_NODE = 0x00000800, /* node management */ 97177595Sweongyo MALO_DEBUG_RECV_ALL = 0x00001000, /* trace all frames (beacons) */ 98177595Sweongyo MALO_DEBUG_FW = 0x00008000, /* firmware */ 99177595Sweongyo MALO_DEBUG_ANY = 0xffffffff 100177595Sweongyo}; 101177595Sweongyo#define IS_BEACON(wh) \ 102177595Sweongyo ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK | \ 103177595Sweongyo IEEE80211_FC0_SUBTYPE_MASK)) == \ 104177595Sweongyo (IEEE80211_FC0_TYPE_MGT|IEEE80211_FC0_SUBTYPE_BEACON)) 105177595Sweongyo#define IFF_DUMPPKTS_RECV(sc, wh) \ 106177595Sweongyo (((sc->malo_debug & MALO_DEBUG_RECV) && \ 107177595Sweongyo ((sc->malo_debug & MALO_DEBUG_RECV_ALL) || !IS_BEACON(wh))) || \ 108177595Sweongyo (sc->malo_ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == \ 109177595Sweongyo (IFF_DEBUG|IFF_LINK2)) 110177595Sweongyo#define IFF_DUMPPKTS_XMIT(sc) \ 111177595Sweongyo ((sc->malo_debug & MALO_DEBUG_XMIT) || \ 112177595Sweongyo (sc->malo_ifp->if_flags & (IFF_DEBUG | IFF_LINK2)) == \ 113177595Sweongyo (IFF_DEBUG | IFF_LINK2)) 114177595Sweongyo#define DPRINTF(sc, m, fmt, ...) do { \ 115177595Sweongyo if (sc->malo_debug & (m)) \ 116177595Sweongyo printf(fmt, __VA_ARGS__); \ 117177595Sweongyo} while (0) 118177595Sweongyo#else 119177595Sweongyo#define DPRINTF(sc, m, fmt, ...) do { \ 120177595Sweongyo (void) sc; \ 121177595Sweongyo} while (0) 122177595Sweongyo#endif 123177595Sweongyo 124177595SweongyoMALLOC_DEFINE(M_MALODEV, "malodev", "malo driver dma buffers"); 125177595Sweongyo 126177595Sweongyostatic int malo_dma_setup(struct malo_softc *); 127177595Sweongyostatic int malo_setup_hwdma(struct malo_softc *); 128177595Sweongyostatic void malo_txq_init(struct malo_softc *, struct malo_txq *, int); 129177595Sweongyostatic void malo_tx_cleanupq(struct malo_softc *, struct malo_txq *); 130177595Sweongyostatic void malo_start(struct ifnet *); 131177595Sweongyostatic void malo_watchdog(struct ifnet *); 132177595Sweongyostatic int malo_ioctl(struct ifnet *, u_long, caddr_t); 133177595Sweongyostatic void malo_updateslot(struct ifnet *); 134177595Sweongyostatic int malo_newstate(struct ieee80211com *, enum ieee80211_state, int); 135177595Sweongyostatic void malo_scan_start(struct ieee80211com *); 136177595Sweongyostatic void malo_scan_end(struct ieee80211com *); 137177595Sweongyostatic void malo_set_channel(struct ieee80211com *); 138177595Sweongyostatic int malo_raw_xmit(struct ieee80211_node *, struct mbuf *, 139177595Sweongyo const struct ieee80211_bpf_params *); 140177595Sweongyostatic int malo_media_change(struct ifnet *); 141177595Sweongyostatic void malo_bpfattach(struct malo_softc *); 142177595Sweongyostatic void malo_sysctlattach(struct malo_softc *); 143177595Sweongyostatic void malo_announce(struct malo_softc *); 144177595Sweongyostatic void malo_dma_cleanup(struct malo_softc *); 145177595Sweongyostatic void malo_stop_locked(struct ifnet *, int); 146177595Sweongyostatic int malo_chan_set(struct malo_softc *, struct ieee80211_channel *); 147177595Sweongyostatic int malo_mode_init(struct malo_softc *); 148177595Sweongyostatic void malo_tx_proc(void *, int); 149177595Sweongyostatic void malo_rx_proc(void *, int); 150177595Sweongyostatic void malo_init(void *); 151177595Sweongyo 152177595Sweongyo/* 153177595Sweongyo * Read/Write shorthands for accesses to BAR 0. Note that all BAR 1 154177595Sweongyo * operations are done in the "hal" except getting H/W MAC address at 155177595Sweongyo * malo_attach and there should be no reference to them here. 156177595Sweongyo */ 157177595Sweongyostatic uint32_t 158177595Sweongyomalo_bar0_read4(struct malo_softc *sc, bus_size_t off) 159177595Sweongyo{ 160177595Sweongyo return bus_space_read_4(sc->malo_io0t, sc->malo_io0h, off); 161177595Sweongyo} 162177595Sweongyo 163177595Sweongyostatic void 164177595Sweongyomalo_bar0_write4(struct malo_softc *sc, bus_size_t off, uint32_t val) 165177595Sweongyo{ 166177595Sweongyo DPRINTF(sc, MALO_DEBUG_FW, "%s: off 0x%x val 0x%x\n", 167177595Sweongyo __func__, off, val); 168177595Sweongyo 169177595Sweongyo bus_space_write_4(sc->malo_io0t, sc->malo_io0h, off, val); 170177595Sweongyo} 171177595Sweongyo 172177595Sweongyostatic uint8_t 173177595Sweongyomalo_bar1_read1(struct malo_softc *sc, bus_size_t off) 174177595Sweongyo{ 175177595Sweongyo return bus_space_read_1(sc->malo_io1t, sc->malo_io1h, off); 176177595Sweongyo} 177177595Sweongyo 178177595Sweongyoint 179177595Sweongyomalo_attach(uint16_t devid, struct malo_softc *sc) 180177595Sweongyo{ 181177595Sweongyo int error, i; 182177595Sweongyo struct ieee80211com *ic = &sc->malo_ic; 183177595Sweongyo struct ifnet *ifp; 184177595Sweongyo struct malo_hal *mh; 185177595Sweongyo uint8_t bands; 186177595Sweongyo 187177595Sweongyo ifp = sc->malo_ifp = if_alloc(IFT_ETHER); 188177595Sweongyo if (ifp == NULL) { 189177595Sweongyo device_printf(sc->malo_dev, "can not if_alloc()\n"); 190177595Sweongyo return ENOSPC; 191177595Sweongyo } 192177595Sweongyo 193177595Sweongyo MALO_LOCK_INIT(sc); 194177595Sweongyo 195177595Sweongyo /* set these up early for if_printf use */ 196177595Sweongyo if_initname(ifp, device_get_name(sc->malo_dev), 197177595Sweongyo device_get_unit(sc->malo_dev)); 198177595Sweongyo 199177595Sweongyo /* 200177595Sweongyo * NB: get mac address from hardware directly here before we set DMAs 201177595Sweongyo * for HAL because we don't want to disturb operations of HAL at BAR 1. 202177595Sweongyo */ 203177595Sweongyo for (i = 0; i < IEEE80211_ADDR_LEN; i++) { 204177595Sweongyo /* XXX remove a magic number but we don't have documents. */ 205177595Sweongyo ic->ic_myaddr[i] = malo_bar1_read1(sc, 0xa528 + i); 206177595Sweongyo DELAY(1000); 207177595Sweongyo } 208177595Sweongyo 209177595Sweongyo mh = malo_hal_attach(sc->malo_dev, devid, 210177595Sweongyo sc->malo_io1h, sc->malo_io1t, sc->malo_dmat); 211177595Sweongyo if (mh == NULL) { 212177595Sweongyo if_printf(ifp, "unable to attach HAL\n"); 213177595Sweongyo error = EIO; 214177595Sweongyo goto bad; 215177595Sweongyo } 216177595Sweongyo sc->malo_mh = mh; 217177595Sweongyo 218177595Sweongyo sc->malo_txantenna = 0x2; /* h/w default */ 219177595Sweongyo sc->malo_rxantenna = 0xffff; /* h/w default */ 220177595Sweongyo 221177595Sweongyo /* 222177595Sweongyo * Allocate tx + rx descriptors and populate the lists. 223177595Sweongyo * We immediately push the information to the firmware 224177595Sweongyo * as otherwise it gets upset. 225177595Sweongyo */ 226177595Sweongyo error = malo_dma_setup(sc); 227177595Sweongyo if (error != 0) { 228177595Sweongyo if_printf(ifp, "failed to setup descriptors: %d\n", error); 229177595Sweongyo goto bad1; 230177595Sweongyo } 231177595Sweongyo 232177595Sweongyo sc->malo_tq = taskqueue_create_fast("malo_taskq", M_NOWAIT, 233177595Sweongyo taskqueue_thread_enqueue, &sc->malo_tq); 234177595Sweongyo taskqueue_start_threads(&sc->malo_tq, 1, PI_NET, 235177595Sweongyo "%s taskq", ifp->if_xname); 236177595Sweongyo 237177595Sweongyo TASK_INIT(&sc->malo_rxtask, 0, malo_rx_proc, sc); 238177595Sweongyo TASK_INIT(&sc->malo_txtask, 0, malo_tx_proc, sc); 239177595Sweongyo 240177595Sweongyo ifp->if_softc = sc; 241177595Sweongyo ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST; 242177595Sweongyo ifp->if_start = malo_start; 243177595Sweongyo ifp->if_watchdog = malo_watchdog; 244177595Sweongyo ifp->if_ioctl = malo_ioctl; 245177595Sweongyo ifp->if_init = malo_init; 246177595Sweongyo IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 247177595Sweongyo ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 248177595Sweongyo IFQ_SET_READY(&ifp->if_snd); 249177595Sweongyo 250177595Sweongyo /* NB: firmware looks that it does not export regdomain info API. */ 251177595Sweongyo bands = 0; 252177595Sweongyo setbit(&bands, IEEE80211_MODE_11B); 253177595Sweongyo setbit(&bands, IEEE80211_MODE_11G); 254177595Sweongyo ieee80211_init_channels(ic, 0, CTRY_DEFAULT, bands, 0, 1); 255177595Sweongyo 256177595Sweongyo ic->ic_ifp = ifp; 257177595Sweongyo /* XXX not right but it's not used anywhere important */ 258177595Sweongyo ic->ic_phytype = IEEE80211_T_OFDM; 259177595Sweongyo ic->ic_opmode = IEEE80211_M_STA; 260177595Sweongyo ic->ic_caps = 261177595Sweongyo IEEE80211_C_BGSCAN /* capable of bg scanning */ 262177595Sweongyo | IEEE80211_C_MONITOR /* monitor mode */ 263177595Sweongyo | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 264177595Sweongyo | IEEE80211_C_SHSLOT /* short slot time supported */ 265177595Sweongyo | IEEE80211_C_TXPMGT /* capable of txpow mgt */ 266177595Sweongyo | IEEE80211_C_WPA /* capable of WPA1+WPA2 */ 267177595Sweongyo ; 268177595Sweongyo 269177595Sweongyo /* 270177595Sweongyo * Transmit requires space in the packet for a special format transmit 271177595Sweongyo * record and optional padding between this record and the payload. 272177595Sweongyo * Ask the net80211 layer to arrange this when encapsulating 273177595Sweongyo * packets so we can add it efficiently. 274177595Sweongyo */ 275177595Sweongyo ic->ic_headroom = sizeof(struct malo_txrec) - 276177595Sweongyo sizeof(struct ieee80211_frame); 277177595Sweongyo 278177595Sweongyo /* call MI attach routine. */ 279177595Sweongyo ieee80211_ifattach(ic); 280177595Sweongyo /* override default methods */ 281177595Sweongyo ic->ic_updateslot = malo_updateslot; 282177595Sweongyo ic->ic_raw_xmit = malo_raw_xmit; 283177595Sweongyo 284177595Sweongyo sc->malo_newstate = ic->ic_newstate; 285177595Sweongyo ic->ic_newstate = malo_newstate; 286177595Sweongyo 287177595Sweongyo ic->ic_scan_start = malo_scan_start; 288177595Sweongyo ic->ic_scan_end = malo_scan_end; 289177595Sweongyo ic->ic_set_channel = malo_set_channel; 290177595Sweongyo 291177595Sweongyo /* complete initialization */ 292177595Sweongyo ieee80211_media_init(ic, malo_media_change, ieee80211_media_status); 293177595Sweongyo 294177595Sweongyo sc->malo_invalid = 0; /* ready to go, enable int handling */ 295177595Sweongyo 296177595Sweongyo malo_bpfattach(sc); 297177595Sweongyo 298177595Sweongyo /* 299177595Sweongyo * Setup dynamic sysctl's. 300177595Sweongyo */ 301177595Sweongyo malo_sysctlattach(sc); 302177595Sweongyo 303177595Sweongyo if (bootverbose) 304177595Sweongyo ieee80211_announce(ic); 305177595Sweongyo 306177595Sweongyo return 0; 307177595Sweongyobad1: 308177595Sweongyo malo_hal_detach(mh); 309177595Sweongyobad: 310177595Sweongyo if_free(ifp); 311177595Sweongyo sc->malo_invalid = 1; 312177595Sweongyo 313177595Sweongyo return error; 314177595Sweongyo} 315177595Sweongyo 316177595Sweongyoint 317177595Sweongyomalo_intr(void *arg) 318177595Sweongyo{ 319177595Sweongyo struct malo_softc *sc = arg; 320177595Sweongyo struct malo_hal *mh = sc->malo_mh; 321177595Sweongyo uint32_t status; 322177595Sweongyo 323177595Sweongyo if (sc->malo_invalid) { 324177595Sweongyo /* 325177595Sweongyo * The hardware is not ready/present, don't touch anything. 326177595Sweongyo * Note this can happen early on if the IRQ is shared. 327177595Sweongyo */ 328177595Sweongyo DPRINTF(sc, MALO_DEBUG_ANY, "%s: invalid; ignored\n", __func__); 329177595Sweongyo return (FILTER_STRAY); 330177595Sweongyo } 331177595Sweongyo 332177595Sweongyo /* 333177595Sweongyo * Figure out the reason(s) for the interrupt. 334177595Sweongyo */ 335177595Sweongyo malo_hal_getisr(mh, &status); /* NB: clears ISR too */ 336177595Sweongyo if (status == 0) /* must be a shared irq */ 337177595Sweongyo return (FILTER_STRAY); 338177595Sweongyo 339177595Sweongyo DPRINTF(sc, MALO_DEBUG_INTR, "%s: status 0x%x imask 0x%x\n", 340177595Sweongyo __func__, status, sc->malo_imask); 341177595Sweongyo 342177595Sweongyo if (status & MALO_A2HRIC_BIT_RX_RDY) 343177595Sweongyo taskqueue_enqueue_fast(sc->malo_tq, &sc->malo_rxtask); 344177595Sweongyo if (status & MALO_A2HRIC_BIT_TX_DONE) 345177595Sweongyo taskqueue_enqueue_fast(sc->malo_tq, &sc->malo_txtask); 346177595Sweongyo if (status & MALO_A2HRIC_BIT_OPC_DONE) 347177595Sweongyo malo_hal_cmddone(mh); 348177595Sweongyo if (status & MALO_A2HRIC_BIT_MAC_EVENT) 349177595Sweongyo ; 350177595Sweongyo if (status & MALO_A2HRIC_BIT_RX_PROBLEM) 351177595Sweongyo ; 352177595Sweongyo if (status & MALO_A2HRIC_BIT_ICV_ERROR) { 353177595Sweongyo /* TKIP ICV error */ 354177595Sweongyo sc->malo_stats.mst_rx_badtkipicv++; 355177595Sweongyo } 356177595Sweongyo 357177595Sweongyo#ifdef MALO_DEBUG 358177595Sweongyo if (((status | sc->malo_imask) ^ sc->malo_imask) != 0) 359177595Sweongyo DPRINTF(sc, MALO_DEBUG_INTR, 360177595Sweongyo "%s: can't handle interrupt status 0x%x\n", 361177595Sweongyo __func__, status); 362177595Sweongyo#endif 363177595Sweongyo 364177595Sweongyo return (FILTER_HANDLED); 365177595Sweongyo} 366177595Sweongyo 367177595Sweongyostatic void 368177595Sweongyomalo_load_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 369177595Sweongyo{ 370177595Sweongyo bus_addr_t *paddr = (bus_addr_t*) arg; 371177595Sweongyo 372177595Sweongyo KASSERT(error == 0, ("error %u on bus_dma callback", error)); 373177595Sweongyo 374177595Sweongyo *paddr = segs->ds_addr; 375177595Sweongyo} 376177595Sweongyo 377177595Sweongyostatic int 378177595Sweongyomalo_desc_setup(struct malo_softc *sc, const char *name, 379177595Sweongyo struct malo_descdma *dd, 380177595Sweongyo int nbuf, size_t bufsize, int ndesc, size_t descsize) 381177595Sweongyo{ 382177595Sweongyo int error; 383177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 384177595Sweongyo uint8_t *ds; 385177595Sweongyo 386177595Sweongyo DPRINTF(sc, MALO_DEBUG_RESET, 387177595Sweongyo "%s: %s DMA: %u bufs (%ju) %u desc/buf (%ju)\n", 388177595Sweongyo __func__, name, nbuf, (uintmax_t) bufsize, 389177595Sweongyo ndesc, (uintmax_t) descsize); 390177595Sweongyo 391177595Sweongyo dd->dd_name = name; 392177595Sweongyo dd->dd_desc_len = nbuf * ndesc * descsize; 393177595Sweongyo 394177595Sweongyo /* 395177595Sweongyo * Setup DMA descriptor area. 396177595Sweongyo */ 397177595Sweongyo error = bus_dma_tag_create(bus_get_dma_tag(sc->malo_dev),/* parent */ 398177595Sweongyo PAGE_SIZE, 0, /* alignment, bounds */ 399177595Sweongyo BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 400177595Sweongyo BUS_SPACE_MAXADDR, /* highaddr */ 401177595Sweongyo NULL, NULL, /* filter, filterarg */ 402177595Sweongyo dd->dd_desc_len, /* maxsize */ 403177595Sweongyo 1, /* nsegments */ 404177595Sweongyo dd->dd_desc_len, /* maxsegsize */ 405177595Sweongyo BUS_DMA_ALLOCNOW, /* flags */ 406177595Sweongyo NULL, /* lockfunc */ 407177595Sweongyo NULL, /* lockarg */ 408177595Sweongyo &dd->dd_dmat); 409177595Sweongyo if (error != 0) { 410177595Sweongyo if_printf(ifp, "cannot allocate %s DMA tag\n", dd->dd_name); 411177595Sweongyo return error; 412177595Sweongyo } 413177595Sweongyo 414177595Sweongyo /* allocate descriptors */ 415177595Sweongyo error = bus_dmamap_create(dd->dd_dmat, BUS_DMA_NOWAIT, &dd->dd_dmamap); 416177595Sweongyo if (error != 0) { 417177595Sweongyo if_printf(ifp, "unable to create dmamap for %s descriptors, " 418177595Sweongyo "error %u\n", dd->dd_name, error); 419177595Sweongyo goto fail0; 420177595Sweongyo } 421177595Sweongyo 422177595Sweongyo error = bus_dmamem_alloc(dd->dd_dmat, (void**) &dd->dd_desc, 423177595Sweongyo BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &dd->dd_dmamap); 424177595Sweongyo if (error != 0) { 425177595Sweongyo if_printf(ifp, "unable to alloc memory for %u %s descriptors, " 426177595Sweongyo "error %u\n", nbuf * ndesc, dd->dd_name, error); 427177595Sweongyo goto fail1; 428177595Sweongyo } 429177595Sweongyo 430177595Sweongyo error = bus_dmamap_load(dd->dd_dmat, dd->dd_dmamap, 431177595Sweongyo dd->dd_desc, dd->dd_desc_len, 432177595Sweongyo malo_load_cb, &dd->dd_desc_paddr, BUS_DMA_NOWAIT); 433177595Sweongyo if (error != 0) { 434177595Sweongyo if_printf(ifp, "unable to map %s descriptors, error %u\n", 435177595Sweongyo dd->dd_name, error); 436177595Sweongyo goto fail2; 437177595Sweongyo } 438177595Sweongyo 439177595Sweongyo ds = dd->dd_desc; 440177595Sweongyo memset(ds, 0, dd->dd_desc_len); 441177595Sweongyo DPRINTF(sc, MALO_DEBUG_RESET, "%s: %s DMA map: %p (%lu) -> %p (%lu)\n", 442177595Sweongyo __func__, dd->dd_name, ds, (u_long) dd->dd_desc_len, 443177595Sweongyo (caddr_t) dd->dd_desc_paddr, /*XXX*/ (u_long) dd->dd_desc_len); 444177595Sweongyo 445177595Sweongyo return 0; 446177595Sweongyofail2: 447177595Sweongyo bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap); 448177595Sweongyofail1: 449177595Sweongyo bus_dmamap_destroy(dd->dd_dmat, dd->dd_dmamap); 450177595Sweongyofail0: 451177595Sweongyo bus_dma_tag_destroy(dd->dd_dmat); 452177595Sweongyo memset(dd, 0, sizeof(*dd)); 453177595Sweongyo return error; 454177595Sweongyo} 455177595Sweongyo 456177595Sweongyo#define DS2PHYS(_dd, _ds) \ 457177595Sweongyo ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) 458177595Sweongyo 459177595Sweongyostatic int 460177595Sweongyomalo_rxdma_setup(struct malo_softc *sc) 461177595Sweongyo{ 462177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 463177595Sweongyo int error, bsize, i; 464177595Sweongyo struct malo_rxbuf *bf; 465177595Sweongyo struct malo_rxdesc *ds; 466177595Sweongyo 467177595Sweongyo error = malo_desc_setup(sc, "rx", &sc->malo_rxdma, 468177595Sweongyo malo_rxbuf, sizeof(struct malo_rxbuf), 469177595Sweongyo 1, sizeof(struct malo_rxdesc)); 470177595Sweongyo if (error != 0) 471177595Sweongyo return error; 472177595Sweongyo 473177595Sweongyo /* 474177595Sweongyo * Allocate rx buffers and set them up. 475177595Sweongyo */ 476177595Sweongyo bsize = malo_rxbuf * sizeof(struct malo_rxbuf); 477177595Sweongyo bf = malloc(bsize, M_MALODEV, M_NOWAIT | M_ZERO); 478177595Sweongyo if (bf == NULL) { 479177595Sweongyo if_printf(ifp, "malloc of %u rx buffers failed\n", bsize); 480177595Sweongyo return error; 481177595Sweongyo } 482177595Sweongyo sc->malo_rxdma.dd_bufptr = bf; 483177595Sweongyo 484177595Sweongyo STAILQ_INIT(&sc->malo_rxbuf); 485177595Sweongyo ds = sc->malo_rxdma.dd_desc; 486177595Sweongyo for (i = 0; i < malo_rxbuf; i++, bf++, ds++) { 487177595Sweongyo bf->bf_desc = ds; 488177595Sweongyo bf->bf_daddr = DS2PHYS(&sc->malo_rxdma, ds); 489177595Sweongyo error = bus_dmamap_create(sc->malo_dmat, BUS_DMA_NOWAIT, 490177595Sweongyo &bf->bf_dmamap); 491177595Sweongyo if (error != 0) { 492177595Sweongyo if_printf(ifp, "%s: unable to dmamap for rx buffer, " 493177595Sweongyo "error %d\n", __func__, error); 494177595Sweongyo return error; 495177595Sweongyo } 496177595Sweongyo /* NB: tail is intentional to preserve descriptor order */ 497177595Sweongyo STAILQ_INSERT_TAIL(&sc->malo_rxbuf, bf, bf_list); 498177595Sweongyo } 499177595Sweongyo return 0; 500177595Sweongyo} 501177595Sweongyo 502177595Sweongyostatic int 503177595Sweongyomalo_txdma_setup(struct malo_softc *sc, struct malo_txq *txq) 504177595Sweongyo{ 505177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 506177595Sweongyo int error, bsize, i; 507177595Sweongyo struct malo_txbuf *bf; 508177595Sweongyo struct malo_txdesc *ds; 509177595Sweongyo 510177595Sweongyo error = malo_desc_setup(sc, "tx", &txq->dma, 511177595Sweongyo malo_txbuf, sizeof(struct malo_txbuf), 512177595Sweongyo MALO_TXDESC, sizeof(struct malo_txdesc)); 513177595Sweongyo if (error != 0) 514177595Sweongyo return error; 515177595Sweongyo 516177595Sweongyo /* allocate and setup tx buffers */ 517177595Sweongyo bsize = malo_txbuf * sizeof(struct malo_txbuf); 518177595Sweongyo bf = malloc(bsize, M_MALODEV, M_NOWAIT | M_ZERO); 519177595Sweongyo if (bf == NULL) { 520177595Sweongyo if_printf(ifp, "malloc of %u tx buffers failed\n", 521177595Sweongyo malo_txbuf); 522177595Sweongyo return ENOMEM; 523177595Sweongyo } 524177595Sweongyo txq->dma.dd_bufptr = bf; 525177595Sweongyo 526177595Sweongyo STAILQ_INIT(&txq->free); 527177595Sweongyo txq->nfree = 0; 528177595Sweongyo ds = txq->dma.dd_desc; 529177595Sweongyo for (i = 0; i < malo_txbuf; i++, bf++, ds += MALO_TXDESC) { 530177595Sweongyo bf->bf_desc = ds; 531177595Sweongyo bf->bf_daddr = DS2PHYS(&txq->dma, ds); 532177595Sweongyo error = bus_dmamap_create(sc->malo_dmat, BUS_DMA_NOWAIT, 533177595Sweongyo &bf->bf_dmamap); 534177595Sweongyo if (error != 0) { 535177595Sweongyo if_printf(ifp, "unable to create dmamap for tx " 536177595Sweongyo "buffer %u, error %u\n", i, error); 537177595Sweongyo return error; 538177595Sweongyo } 539177595Sweongyo STAILQ_INSERT_TAIL(&txq->free, bf, bf_list); 540177595Sweongyo txq->nfree++; 541177595Sweongyo } 542177595Sweongyo 543177595Sweongyo return 0; 544177595Sweongyo} 545177595Sweongyo 546177595Sweongyostatic void 547177595Sweongyomalo_desc_cleanup(struct malo_softc *sc, struct malo_descdma *dd) 548177595Sweongyo{ 549177595Sweongyo bus_dmamap_unload(dd->dd_dmat, dd->dd_dmamap); 550177595Sweongyo bus_dmamem_free(dd->dd_dmat, dd->dd_desc, dd->dd_dmamap); 551177595Sweongyo bus_dmamap_destroy(dd->dd_dmat, dd->dd_dmamap); 552177595Sweongyo bus_dma_tag_destroy(dd->dd_dmat); 553177595Sweongyo 554177595Sweongyo memset(dd, 0, sizeof(*dd)); 555177595Sweongyo} 556177595Sweongyo 557177595Sweongyostatic void 558177595Sweongyomalo_rxdma_cleanup(struct malo_softc *sc) 559177595Sweongyo{ 560177595Sweongyo struct malo_rxbuf *bf; 561177595Sweongyo 562177595Sweongyo STAILQ_FOREACH(bf, &sc->malo_rxbuf, bf_list) { 563177595Sweongyo if (bf->bf_m != NULL) { 564177595Sweongyo m_freem(bf->bf_m); 565177595Sweongyo bf->bf_m = NULL; 566177595Sweongyo } 567177595Sweongyo if (bf->bf_dmamap != NULL) { 568177595Sweongyo bus_dmamap_destroy(sc->malo_dmat, bf->bf_dmamap); 569177595Sweongyo bf->bf_dmamap = NULL; 570177595Sweongyo } 571177595Sweongyo } 572177595Sweongyo STAILQ_INIT(&sc->malo_rxbuf); 573177595Sweongyo if (sc->malo_rxdma.dd_bufptr != NULL) { 574177595Sweongyo free(sc->malo_rxdma.dd_bufptr, M_MALODEV); 575177595Sweongyo sc->malo_rxdma.dd_bufptr = NULL; 576177595Sweongyo } 577177595Sweongyo if (sc->malo_rxdma.dd_desc_len != 0) 578177595Sweongyo malo_desc_cleanup(sc, &sc->malo_rxdma); 579177595Sweongyo} 580177595Sweongyo 581177595Sweongyostatic void 582177595Sweongyomalo_txdma_cleanup(struct malo_softc *sc, struct malo_txq *txq) 583177595Sweongyo{ 584177595Sweongyo struct malo_txbuf *bf; 585177595Sweongyo struct ieee80211_node *ni; 586177595Sweongyo 587177595Sweongyo STAILQ_FOREACH(bf, &txq->free, bf_list) { 588177595Sweongyo if (bf->bf_m != NULL) { 589177595Sweongyo m_freem(bf->bf_m); 590177595Sweongyo bf->bf_m = NULL; 591177595Sweongyo } 592177595Sweongyo ni = bf->bf_node; 593177595Sweongyo bf->bf_node = NULL; 594177595Sweongyo if (ni != NULL) { 595177595Sweongyo /* 596177595Sweongyo * Reclaim node reference. 597177595Sweongyo */ 598177595Sweongyo ieee80211_free_node(ni); 599177595Sweongyo } 600177595Sweongyo if (bf->bf_dmamap != NULL) { 601177595Sweongyo bus_dmamap_destroy(sc->malo_dmat, bf->bf_dmamap); 602177595Sweongyo bf->bf_dmamap = NULL; 603177595Sweongyo } 604177595Sweongyo } 605177595Sweongyo STAILQ_INIT(&txq->free); 606177595Sweongyo txq->nfree = 0; 607177595Sweongyo if (txq->dma.dd_bufptr != NULL) { 608177595Sweongyo free(txq->dma.dd_bufptr, M_MALODEV); 609177595Sweongyo txq->dma.dd_bufptr = NULL; 610177595Sweongyo } 611177595Sweongyo if (txq->dma.dd_desc_len != 0) 612177595Sweongyo malo_desc_cleanup(sc, &txq->dma); 613177595Sweongyo} 614177595Sweongyo 615177595Sweongyostatic void 616177595Sweongyomalo_dma_cleanup(struct malo_softc *sc) 617177595Sweongyo{ 618177595Sweongyo int i; 619177595Sweongyo 620177595Sweongyo for (i = 0; i < MALO_NUM_TX_QUEUES; i++) 621177595Sweongyo malo_txdma_cleanup(sc, &sc->malo_txq[i]); 622177595Sweongyo 623177595Sweongyo malo_rxdma_cleanup(sc); 624177595Sweongyo} 625177595Sweongyo 626177595Sweongyostatic int 627177595Sweongyomalo_dma_setup(struct malo_softc *sc) 628177595Sweongyo{ 629177595Sweongyo int error, i; 630177595Sweongyo 631177595Sweongyo /* rxdma initializing. */ 632177595Sweongyo error = malo_rxdma_setup(sc); 633177595Sweongyo if (error != 0) 634177595Sweongyo return error; 635177595Sweongyo 636177595Sweongyo /* NB: we just have 1 tx queue now. */ 637177595Sweongyo for (i = 0; i < MALO_NUM_TX_QUEUES; i++) { 638177595Sweongyo error = malo_txdma_setup(sc, &sc->malo_txq[i]); 639177595Sweongyo if (error != 0) { 640177595Sweongyo malo_dma_cleanup(sc); 641177595Sweongyo 642177595Sweongyo return error; 643177595Sweongyo } 644177595Sweongyo 645177595Sweongyo malo_txq_init(sc, &sc->malo_txq[i], i); 646177595Sweongyo } 647177595Sweongyo 648177595Sweongyo return 0; 649177595Sweongyo} 650177595Sweongyo 651177595Sweongyostatic void 652177595Sweongyomalo_hal_set_rxtxdma(struct malo_softc *sc) 653177595Sweongyo{ 654177595Sweongyo int i; 655177595Sweongyo 656177595Sweongyo malo_bar0_write4(sc, sc->malo_hwspecs.rxdesc_read, 657177595Sweongyo sc->malo_hwdma.rxdesc_read); 658177595Sweongyo malo_bar0_write4(sc, sc->malo_hwspecs.rxdesc_write, 659177595Sweongyo sc->malo_hwdma.rxdesc_read); 660177595Sweongyo 661177595Sweongyo for (i = 0; i < MALO_NUM_TX_QUEUES; i++) { 662177595Sweongyo malo_bar0_write4(sc, 663177595Sweongyo sc->malo_hwspecs.wcbbase[i], sc->malo_hwdma.wcbbase[i]); 664177595Sweongyo } 665177595Sweongyo} 666177595Sweongyo 667177595Sweongyo/* 668177595Sweongyo * Inform firmware of our tx/rx dma setup. The BAR 0 writes below are 669177595Sweongyo * for compatibility with older firmware. For current firmware we send 670177595Sweongyo * this information with a cmd block via malo_hal_sethwdma. 671177595Sweongyo */ 672177595Sweongyostatic int 673177595Sweongyomalo_setup_hwdma(struct malo_softc *sc) 674177595Sweongyo{ 675177595Sweongyo int i; 676177595Sweongyo struct malo_txq *txq; 677177595Sweongyo 678177595Sweongyo sc->malo_hwdma.rxdesc_read = sc->malo_rxdma.dd_desc_paddr; 679177595Sweongyo 680177595Sweongyo for (i = 0; i < MALO_NUM_TX_QUEUES; i++) { 681177595Sweongyo txq = &sc->malo_txq[i]; 682177595Sweongyo sc->malo_hwdma.wcbbase[i] = txq->dma.dd_desc_paddr; 683177595Sweongyo } 684177595Sweongyo sc->malo_hwdma.maxnum_txwcb = malo_txbuf; 685177595Sweongyo sc->malo_hwdma.maxnum_wcb = MALO_NUM_TX_QUEUES; 686177595Sweongyo 687177595Sweongyo malo_hal_set_rxtxdma(sc); 688177595Sweongyo 689177595Sweongyo return 0; 690177595Sweongyo} 691177595Sweongyo 692177595Sweongyostatic void 693177595Sweongyomalo_txq_init(struct malo_softc *sc, struct malo_txq *txq, int qnum) 694177595Sweongyo{ 695177595Sweongyo struct malo_txbuf *bf, *bn; 696177595Sweongyo struct malo_txdesc *ds; 697177595Sweongyo 698177595Sweongyo MALO_TXQ_LOCK_INIT(sc, txq); 699177595Sweongyo txq->qnum = qnum; 700177595Sweongyo txq->txpri = 0; /* XXX */ 701177595Sweongyo 702177595Sweongyo STAILQ_FOREACH(bf, &txq->free, bf_list) { 703177595Sweongyo bf->bf_txq = txq; 704177595Sweongyo 705177595Sweongyo ds = bf->bf_desc; 706177595Sweongyo bn = STAILQ_NEXT(bf, bf_list); 707177595Sweongyo if (bn == NULL) 708177595Sweongyo bn = STAILQ_FIRST(&txq->free); 709177595Sweongyo ds->physnext = htole32(bn->bf_daddr); 710177595Sweongyo } 711177595Sweongyo STAILQ_INIT(&txq->active); 712177595Sweongyo} 713177595Sweongyo 714177595Sweongyo/* 715177595Sweongyo * Reclaim resources for a setup queue. 716177595Sweongyo */ 717177595Sweongyostatic void 718177595Sweongyomalo_tx_cleanupq(struct malo_softc *sc, struct malo_txq *txq) 719177595Sweongyo{ 720177595Sweongyo /* XXX hal work? */ 721177595Sweongyo MALO_TXQ_LOCK_DESTROY(txq); 722177595Sweongyo} 723177595Sweongyo 724177595Sweongyo/* 725177595Sweongyo * Allocate a tx buffer for sending a frame. 726177595Sweongyo */ 727177595Sweongyostatic struct malo_txbuf * 728177595Sweongyomalo_getbuf(struct malo_softc *sc, struct malo_txq *txq) 729177595Sweongyo{ 730177595Sweongyo struct malo_txbuf *bf; 731177595Sweongyo 732177595Sweongyo MALO_TXQ_LOCK(txq); 733177595Sweongyo bf = STAILQ_FIRST(&txq->free); 734177595Sweongyo if (bf != NULL) { 735177595Sweongyo STAILQ_REMOVE_HEAD(&txq->free, bf_list); 736177595Sweongyo txq->nfree--; 737177595Sweongyo } 738177595Sweongyo MALO_TXQ_UNLOCK(txq); 739177595Sweongyo if (bf == NULL) { 740177595Sweongyo DPRINTF(sc, MALO_DEBUG_XMIT, 741177595Sweongyo "%s: out of xmit buffers on q %d\n", __func__, txq->qnum); 742177595Sweongyo sc->malo_stats.mst_tx_qstop++; 743177595Sweongyo } 744177595Sweongyo return bf; 745177595Sweongyo} 746177595Sweongyo 747177595Sweongyostatic int 748177595Sweongyomalo_tx_dmasetup(struct malo_softc *sc, struct malo_txbuf *bf, struct mbuf *m0) 749177595Sweongyo{ 750177595Sweongyo struct mbuf *m; 751177595Sweongyo int error; 752177595Sweongyo 753177595Sweongyo /* 754177595Sweongyo * Load the DMA map so any coalescing is done. This also calculates 755177595Sweongyo * the number of descriptors we need. 756177595Sweongyo */ 757177595Sweongyo error = bus_dmamap_load_mbuf_sg(sc->malo_dmat, bf->bf_dmamap, m0, 758177595Sweongyo bf->bf_segs, &bf->bf_nseg, 759177595Sweongyo BUS_DMA_NOWAIT); 760177595Sweongyo if (error == EFBIG) { 761177595Sweongyo /* XXX packet requires too many descriptors */ 762177595Sweongyo bf->bf_nseg = MALO_TXDESC + 1; 763177595Sweongyo } else if (error != 0) { 764177595Sweongyo sc->malo_stats.mst_tx_busdma++; 765177595Sweongyo m_freem(m0); 766177595Sweongyo return error; 767177595Sweongyo } 768177595Sweongyo /* 769177595Sweongyo * Discard null packets and check for packets that require too many 770177595Sweongyo * TX descriptors. We try to convert the latter to a cluster. 771177595Sweongyo */ 772177595Sweongyo if (error == EFBIG) { /* too many desc's, linearize */ 773177595Sweongyo sc->malo_stats.mst_tx_linear++; 774177595Sweongyo m = m_defrag(m0, M_DONTWAIT); 775177595Sweongyo if (m == NULL) { 776177595Sweongyo m_freem(m0); 777177595Sweongyo sc->malo_stats.mst_tx_nombuf++; 778177595Sweongyo return ENOMEM; 779177595Sweongyo } 780177595Sweongyo m0 = m; 781177595Sweongyo error = bus_dmamap_load_mbuf_sg(sc->malo_dmat, bf->bf_dmamap, m0, 782177595Sweongyo bf->bf_segs, &bf->bf_nseg, 783177595Sweongyo BUS_DMA_NOWAIT); 784177595Sweongyo if (error != 0) { 785177595Sweongyo sc->malo_stats.mst_tx_busdma++; 786177595Sweongyo m_freem(m0); 787177595Sweongyo return error; 788177595Sweongyo } 789177595Sweongyo KASSERT(bf->bf_nseg <= MALO_TXDESC, 790177595Sweongyo ("too many segments after defrag; nseg %u", bf->bf_nseg)); 791177595Sweongyo } else if (bf->bf_nseg == 0) { /* null packet, discard */ 792177595Sweongyo sc->malo_stats.mst_tx_nodata++; 793177595Sweongyo m_freem(m0); 794177595Sweongyo return EIO; 795177595Sweongyo } 796177595Sweongyo DPRINTF(sc, MALO_DEBUG_XMIT, "%s: m %p len %u\n", 797177595Sweongyo __func__, m0, m0->m_pkthdr.len); 798177595Sweongyo bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE); 799177595Sweongyo bf->bf_m = m0; 800177595Sweongyo 801177595Sweongyo return 0; 802177595Sweongyo} 803177595Sweongyo 804177595Sweongyo#ifdef MALO_DEBUG 805177595Sweongyostatic void 806177595Sweongyomalo_printrxbuf(const struct malo_rxbuf *bf, u_int ix) 807177595Sweongyo{ 808177595Sweongyo const struct malo_rxdesc *ds = bf->bf_desc; 809177595Sweongyo uint32_t status = le32toh(ds->status); 810177595Sweongyo 811177595Sweongyo printf("R[%2u] (DS.V:%p DS.P:%p) NEXT:%08x DATA:%08x RC:%02x%s\n" 812177595Sweongyo " STAT:%02x LEN:%04x SNR:%02x NF:%02x CHAN:%02x" 813177595Sweongyo " RATE:%02x QOS:%04x\n", 814177595Sweongyo ix, ds, (const struct malo_desc *)bf->bf_daddr, 815177595Sweongyo le32toh(ds->physnext), le32toh(ds->physbuffdata), 816177595Sweongyo ds->rxcontrol, 817177595Sweongyo ds->rxcontrol != MALO_RXD_CTRL_DRIVER_OWN ? 818177595Sweongyo "" : (status & MALO_RXD_STATUS_OK) ? " *" : " !", 819177595Sweongyo ds->status, le16toh(ds->pktlen), ds->snr, ds->nf, ds->channel, 820177595Sweongyo ds->rate, le16toh(ds->qosctrl)); 821177595Sweongyo} 822177595Sweongyo 823177595Sweongyostatic void 824177595Sweongyomalo_printtxbuf(const struct malo_txbuf *bf, u_int qnum, u_int ix) 825177595Sweongyo{ 826177595Sweongyo const struct malo_txdesc *ds = bf->bf_desc; 827177595Sweongyo uint32_t status = le32toh(ds->status); 828177595Sweongyo 829177595Sweongyo printf("Q%u[%3u]", qnum, ix); 830177595Sweongyo printf(" (DS.V:%p DS.P:%p)\n", 831177595Sweongyo ds, (const struct malo_txdesc *)bf->bf_daddr); 832177595Sweongyo printf(" NEXT:%08x DATA:%08x LEN:%04x STAT:%08x%s\n", 833177595Sweongyo le32toh(ds->physnext), 834177595Sweongyo le32toh(ds->pktptr), le16toh(ds->pktlen), status, 835177595Sweongyo status & MALO_TXD_STATUS_USED ? 836177595Sweongyo "" : (status & 3) != 0 ? " *" : " !"); 837177595Sweongyo printf(" RATE:%02x PRI:%x QOS:%04x SAP:%08x FORMAT:%04x\n", 838177595Sweongyo ds->datarate, ds->txpriority, le16toh(ds->qosctrl), 839177595Sweongyo le32toh(ds->sap_pktinfo), le16toh(ds->format)); 840177595Sweongyo#if 0 841177595Sweongyo { 842177595Sweongyo const uint8_t *cp = (const uint8_t *) ds; 843177595Sweongyo int i; 844177595Sweongyo for (i = 0; i < sizeof(struct malo_txdesc); i++) { 845177595Sweongyo printf("%02x ", cp[i]); 846177595Sweongyo if (((i+1) % 16) == 0) 847177595Sweongyo printf("\n"); 848177595Sweongyo } 849177595Sweongyo printf("\n"); 850177595Sweongyo } 851177595Sweongyo#endif 852177595Sweongyo} 853177595Sweongyo#endif /* MALO_DEBUG */ 854177595Sweongyo 855177595Sweongyostatic __inline void 856177595Sweongyomalo_updatetxrate(struct ieee80211_node *ni, int rix) 857177595Sweongyo{ 858177595Sweongyo#define N(x) (sizeof(x)/sizeof(x[0])) 859177595Sweongyo static const int ieeerates[] = 860177595Sweongyo { 2, 4, 11, 22, 44, 12, 18, 24, 36, 48, 96, 108 }; 861177595Sweongyo if (rix < N(ieeerates)) 862177595Sweongyo ni->ni_txrate = ieeerates[rix]; 863177595Sweongyo#undef N 864177595Sweongyo} 865177595Sweongyo 866177595Sweongyostatic int 867177595Sweongyomalo_fix2rate(int fix_rate) 868177595Sweongyo{ 869177595Sweongyo#define N(x) (sizeof(x)/sizeof(x[0])) 870177595Sweongyo static const int rates[] = 871177595Sweongyo { 2, 4, 11, 22, 12, 18, 24, 36, 48, 96, 108 }; 872177595Sweongyo return (fix_rate < N(rates) ? rates[fix_rate] : 0); 873177595Sweongyo#undef N 874177595Sweongyo} 875177595Sweongyo 876177595Sweongyo/* idiomatic shorthands: MS = mask+shift, SM = shift+mask */ 877177595Sweongyo#define MS(v,x) (((v) & x) >> x##_S) 878177595Sweongyo#define SM(v,x) (((v) << x##_S) & x) 879177595Sweongyo 880177595Sweongyo/* 881177595Sweongyo * Process completed xmit descriptors from the specified queue. 882177595Sweongyo */ 883177595Sweongyostatic int 884177595Sweongyomalo_tx_processq(struct malo_softc *sc, struct malo_txq *txq) 885177595Sweongyo{ 886177595Sweongyo struct malo_txbuf *bf; 887177595Sweongyo struct malo_txdesc *ds; 888177595Sweongyo struct ieee80211_node *ni; 889177595Sweongyo int nreaped; 890177595Sweongyo uint32_t status; 891177595Sweongyo 892177595Sweongyo DPRINTF(sc, MALO_DEBUG_TX_PROC, "%s: tx queue %u\n", 893177595Sweongyo __func__, txq->qnum); 894177595Sweongyo for (nreaped = 0;; nreaped++) { 895177595Sweongyo MALO_TXQ_LOCK(txq); 896177595Sweongyo bf = STAILQ_FIRST(&txq->active); 897177595Sweongyo if (bf == NULL) { 898177595Sweongyo MALO_TXQ_UNLOCK(txq); 899177595Sweongyo break; 900177595Sweongyo } 901177595Sweongyo ds = bf->bf_desc; 902177595Sweongyo MALO_TXDESC_SYNC(txq, ds, 903177595Sweongyo BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 904177595Sweongyo if (ds->status & htole32(MALO_TXD_STATUS_FW_OWNED)) { 905177595Sweongyo MALO_TXQ_UNLOCK(txq); 906177595Sweongyo break; 907177595Sweongyo } 908177595Sweongyo STAILQ_REMOVE_HEAD(&txq->active, bf_list); 909177595Sweongyo MALO_TXQ_UNLOCK(txq); 910177595Sweongyo 911177595Sweongyo#ifdef MALO_DEBUG 912177595Sweongyo if (sc->malo_debug & MALO_DEBUG_XMIT_DESC) 913177595Sweongyo malo_printtxbuf(bf, txq->qnum, nreaped); 914177595Sweongyo#endif 915177595Sweongyo ni = bf->bf_node; 916177595Sweongyo if (ni != NULL) { 917177595Sweongyo status = le32toh(ds->status); 918177595Sweongyo if (status & MALO_TXD_STATUS_OK) { 919177595Sweongyo uint16_t format = le16toh(ds->format); 920177595Sweongyo uint8_t txant = MS(format, MALO_TXD_ANTENNA); 921177595Sweongyo 922177595Sweongyo sc->malo_stats.mst_ant_tx[txant]++; 923177595Sweongyo if (status & MALO_TXD_STATUS_OK_RETRY) 924177595Sweongyo sc->malo_stats.mst_tx_retries++; 925177595Sweongyo if (status & MALO_TXD_STATUS_OK_MORE_RETRY) 926177595Sweongyo sc->malo_stats.mst_tx_mretries++; 927177595Sweongyo malo_updatetxrate(ni, ds->datarate); 928177595Sweongyo sc->malo_stats.mst_tx_rate = ds->datarate; 929177595Sweongyo } else { 930177595Sweongyo if (status & MALO_TXD_STATUS_FAILED_LINK_ERROR) 931177595Sweongyo sc->malo_stats.mst_tx_linkerror++; 932177595Sweongyo if (status & MALO_TXD_STATUS_FAILED_XRETRY) 933177595Sweongyo sc->malo_stats.mst_tx_xretries++; 934177595Sweongyo if (status & MALO_TXD_STATUS_FAILED_AGING) 935177595Sweongyo sc->malo_stats.mst_tx_aging++; 936177595Sweongyo } 937177595Sweongyo /* 938177595Sweongyo * Do any tx complete callback. Note this must 939177595Sweongyo * be done before releasing the node reference. 940177595Sweongyo * XXX no way to figure out if frame was ACK'd 941177595Sweongyo */ 942177595Sweongyo if (bf->bf_m->m_flags & M_TXCB) { 943177595Sweongyo /* XXX strip fw len in case header inspected */ 944177595Sweongyo m_adj(bf->bf_m, sizeof(uint16_t)); 945177595Sweongyo ieee80211_process_callback(ni, bf->bf_m, 946177595Sweongyo (status & MALO_TXD_STATUS_OK) == 0); 947177595Sweongyo } 948177595Sweongyo /* 949177595Sweongyo * Reclaim reference to node. 950177595Sweongyo * 951177595Sweongyo * NB: the node may be reclaimed here if, for example 952177595Sweongyo * this is a DEAUTH message that was sent and the 953177595Sweongyo * node was timed out due to inactivity. 954177595Sweongyo */ 955177595Sweongyo ieee80211_free_node(ni); 956177595Sweongyo } 957177595Sweongyo ds->status = htole32(MALO_TXD_STATUS_IDLE); 958177595Sweongyo ds->pktlen = htole32(0); 959177595Sweongyo 960177595Sweongyo bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap, 961177595Sweongyo BUS_DMASYNC_POSTWRITE); 962177595Sweongyo bus_dmamap_unload(sc->malo_dmat, bf->bf_dmamap); 963177595Sweongyo m_freem(bf->bf_m); 964177595Sweongyo bf->bf_m = NULL; 965177595Sweongyo bf->bf_node = NULL; 966177595Sweongyo 967177595Sweongyo MALO_TXQ_LOCK(txq); 968177595Sweongyo STAILQ_INSERT_TAIL(&txq->free, bf, bf_list); 969177595Sweongyo txq->nfree++; 970177595Sweongyo MALO_TXQ_UNLOCK(txq); 971177595Sweongyo } 972177595Sweongyo return nreaped; 973177595Sweongyo} 974177595Sweongyo 975177595Sweongyo/* 976177595Sweongyo * Deferred processing of transmit interrupt. 977177595Sweongyo */ 978177595Sweongyostatic void 979177595Sweongyomalo_tx_proc(void *arg, int npending) 980177595Sweongyo{ 981177595Sweongyo struct malo_softc *sc = arg; 982177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 983177595Sweongyo int i, nreaped; 984177595Sweongyo 985177595Sweongyo /* 986177595Sweongyo * Process each active queue. 987177595Sweongyo */ 988177595Sweongyo nreaped = 0; 989177595Sweongyo for (i = 0; i < MALO_NUM_TX_QUEUES; i++) { 990177595Sweongyo if (!STAILQ_EMPTY(&sc->malo_txq[i].active)) 991177595Sweongyo nreaped += malo_tx_processq(sc, &sc->malo_txq[i]); 992177595Sweongyo } 993177595Sweongyo 994177595Sweongyo if (nreaped != 0) { 995177595Sweongyo ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 996177595Sweongyo ifp->if_timer = 0; 997177595Sweongyo malo_start(ifp); 998177595Sweongyo } 999177595Sweongyo} 1000177595Sweongyo 1001177595Sweongyostatic int 1002177595Sweongyomalo_tx_start(struct malo_softc *sc, struct ieee80211_node *ni, 1003177595Sweongyo struct malo_txbuf *bf, struct mbuf *m0) 1004177595Sweongyo{ 1005177595Sweongyo#define IEEE80211_DIR_DSTODS(wh) \ 1006177595Sweongyo ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS) 1007177595Sweongyo#define IS_DATA_FRAME(wh) \ 1008177595Sweongyo ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK)) == IEEE80211_FC0_TYPE_DATA) 1009177595Sweongyo int error, ismcast, iswep; 1010177595Sweongyo int copyhdrlen, hdrlen, pktlen; 1011177595Sweongyo struct ieee80211_frame *wh; 1012177595Sweongyo struct ieee80211com *ic = &sc->malo_ic; 1013177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 1014177595Sweongyo struct malo_txdesc *ds; 1015177595Sweongyo struct malo_txrec *tr; 1016177595Sweongyo struct malo_txq *txq; 1017177595Sweongyo uint16_t qos; 1018177595Sweongyo 1019177595Sweongyo wh = mtod(m0, struct ieee80211_frame *); 1020177595Sweongyo iswep = wh->i_fc[1] & IEEE80211_FC1_WEP; 1021177595Sweongyo ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 1022177595Sweongyo copyhdrlen = hdrlen = ieee80211_anyhdrsize(wh); 1023177595Sweongyo pktlen = m0->m_pkthdr.len; 1024177595Sweongyo if (IEEE80211_QOS_HAS_SEQ(wh)) { 1025177595Sweongyo if (IEEE80211_DIR_DSTODS(wh)) { 1026177595Sweongyo qos = *(uint16_t *) 1027177595Sweongyo (((struct ieee80211_qosframe_addr4 *) wh)->i_qos); 1028177595Sweongyo copyhdrlen -= sizeof(qos); 1029177595Sweongyo } else 1030177595Sweongyo qos = *(uint16_t *) 1031177595Sweongyo (((struct ieee80211_qosframe *) wh)->i_qos); 1032177595Sweongyo } else 1033177595Sweongyo qos = 0; 1034177595Sweongyo 1035177595Sweongyo if (iswep) { 1036177595Sweongyo struct ieee80211_key *k; 1037177595Sweongyo 1038177595Sweongyo /* 1039177595Sweongyo * Construct the 802.11 header+trailer for an encrypted 1040177595Sweongyo * frame. The only reason this can fail is because of an 1041177595Sweongyo * unknown or unsupported cipher/key type. 1042177595Sweongyo * 1043177595Sweongyo * NB: we do this even though the firmware will ignore 1044177595Sweongyo * what we've done for WEP and TKIP as we need the 1045177595Sweongyo * ExtIV filled in for CCMP and this also adjusts 1046177595Sweongyo * the headers which simplifies our work below. 1047177595Sweongyo */ 1048177595Sweongyo k = ieee80211_crypto_encap(ic, ni, m0); 1049177595Sweongyo if (k == NULL) { 1050177595Sweongyo /* 1051177595Sweongyo * This can happen when the key is yanked after the 1052177595Sweongyo * frame was queued. Just discard the frame; the 1053177595Sweongyo * 802.11 layer counts failures and provides 1054177595Sweongyo * debugging/diagnostics. 1055177595Sweongyo */ 1056177595Sweongyo m_freem(m0); 1057177595Sweongyo return EIO; 1058177595Sweongyo } 1059177595Sweongyo 1060177595Sweongyo /* 1061177595Sweongyo * Adjust the packet length for the crypto additions 1062177595Sweongyo * done during encap and any other bits that the f/w 1063177595Sweongyo * will add later on. 1064177595Sweongyo */ 1065177595Sweongyo pktlen = m0->m_pkthdr.len; 1066177595Sweongyo 1067177595Sweongyo /* packet header may have moved, reset our local pointer */ 1068177595Sweongyo wh = mtod(m0, struct ieee80211_frame *); 1069177595Sweongyo } 1070177595Sweongyo 1071177595Sweongyo if (bpf_peers_present(sc->malo_drvbpf)) { 1072177595Sweongyo sc->malo_tx_th.wt_flags = 0; /* XXX */ 1073177595Sweongyo if (iswep) 1074177595Sweongyo sc->malo_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_WEP; 1075177595Sweongyo sc->malo_tx_th.wt_txpower = ni->ni_txpower; 1076177595Sweongyo sc->malo_tx_th.wt_antenna = sc->malo_txantenna; 1077177595Sweongyo 1078177595Sweongyo bpf_mtap2(sc->malo_drvbpf, 1079177595Sweongyo &sc->malo_tx_th, sc->malo_tx_th_len, m0); 1080177595Sweongyo } 1081177595Sweongyo 1082177595Sweongyo /* 1083177595Sweongyo * Copy up/down the 802.11 header; the firmware requires 1084177595Sweongyo * we present a 2-byte payload length followed by a 1085177595Sweongyo * 4-address header (w/o QoS), followed (optionally) by 1086177595Sweongyo * any WEP/ExtIV header (but only filled in for CCMP). 1087177595Sweongyo * We are assured the mbuf has sufficient headroom to 1088177595Sweongyo * prepend in-place by the setup of ic_headroom in 1089177595Sweongyo * malo_attach. 1090177595Sweongyo */ 1091177595Sweongyo if (hdrlen < sizeof(struct malo_txrec)) { 1092177595Sweongyo const int space = sizeof(struct malo_txrec) - hdrlen; 1093177595Sweongyo if (M_LEADINGSPACE(m0) < space) { 1094177595Sweongyo /* NB: should never happen */ 1095177595Sweongyo device_printf(sc->malo_dev, 1096177595Sweongyo "not enough headroom, need %d found %zd, " 1097177595Sweongyo "m_flags 0x%x m_len %d\n", 1098177595Sweongyo space, M_LEADINGSPACE(m0), m0->m_flags, m0->m_len); 1099177595Sweongyo ieee80211_dump_pkt(ic, 1100177595Sweongyo mtod(m0, const uint8_t *), m0->m_len, 0, -1); 1101177595Sweongyo m_freem(m0); 1102177595Sweongyo /* XXX stat */ 1103177595Sweongyo return EIO; 1104177595Sweongyo } 1105177595Sweongyo M_PREPEND(m0, space, M_NOWAIT); 1106177595Sweongyo } 1107177595Sweongyo tr = mtod(m0, struct malo_txrec *); 1108177595Sweongyo if (wh != (struct ieee80211_frame *) &tr->wh) 1109177595Sweongyo ovbcopy(wh, &tr->wh, hdrlen); 1110177595Sweongyo /* 1111177595Sweongyo * Note: the "firmware length" is actually the length of the fully 1112177595Sweongyo * formed "802.11 payload". That is, it's everything except for 1113177595Sweongyo * the 802.11 header. In particular this includes all crypto 1114177595Sweongyo * material including the MIC! 1115177595Sweongyo */ 1116177595Sweongyo tr->fwlen = htole16(pktlen - hdrlen); 1117177595Sweongyo 1118177595Sweongyo /* 1119177595Sweongyo * Load the DMA map so any coalescing is done. This 1120177595Sweongyo * also calculates the number of descriptors we need. 1121177595Sweongyo */ 1122177595Sweongyo error = malo_tx_dmasetup(sc, bf, m0); 1123177595Sweongyo if (error != 0) 1124177595Sweongyo return error; 1125177595Sweongyo bf->bf_node = ni; /* NB: held reference */ 1126177595Sweongyo m0 = bf->bf_m; /* NB: may have changed */ 1127177595Sweongyo tr = mtod(m0, struct malo_txrec *); 1128177595Sweongyo wh = (struct ieee80211_frame *)&tr->wh; 1129177595Sweongyo 1130177595Sweongyo /* 1131177595Sweongyo * Formulate tx descriptor. 1132177595Sweongyo */ 1133177595Sweongyo ds = bf->bf_desc; 1134177595Sweongyo txq = bf->bf_txq; 1135177595Sweongyo 1136177595Sweongyo ds->qosctrl = qos; /* NB: already little-endian */ 1137177595Sweongyo ds->pktptr = htole32(bf->bf_segs[0].ds_addr); 1138177595Sweongyo ds->pktlen = htole16(bf->bf_segs[0].ds_len); 1139177595Sweongyo /* NB: pPhysNext setup once, don't touch */ 1140177595Sweongyo ds->datarate = IS_DATA_FRAME(wh) ? 1 : 0; 1141177595Sweongyo ds->sap_pktinfo = 0; 1142177595Sweongyo ds->format = 0; 1143177595Sweongyo 1144177595Sweongyo /* 1145177595Sweongyo * Select transmit rate. 1146177595Sweongyo */ 1147177595Sweongyo switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) { 1148177595Sweongyo case IEEE80211_FC0_TYPE_MGT: 1149177595Sweongyo sc->malo_stats.mst_tx_mgmt++; 1150177595Sweongyo /* fall thru... */ 1151177595Sweongyo case IEEE80211_FC0_TYPE_CTL: 1152177595Sweongyo ds->txpriority = 1; 1153177595Sweongyo break; 1154177595Sweongyo case IEEE80211_FC0_TYPE_DATA: 1155177595Sweongyo ds->txpriority = txq->qnum; 1156177595Sweongyo break; 1157177595Sweongyo default: 1158177595Sweongyo if_printf(ifp, "bogus frame type 0x%x (%s)\n", 1159177595Sweongyo wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK, __func__); 1160177595Sweongyo /* XXX statistic */ 1161177595Sweongyo m_freem(m0); 1162177595Sweongyo return EIO; 1163177595Sweongyo } 1164177595Sweongyo 1165177595Sweongyo#ifdef MALO_DEBUG 1166177595Sweongyo if (IFF_DUMPPKTS_XMIT(sc)) 1167177595Sweongyo ieee80211_dump_pkt(ic, 1168177595Sweongyo mtod(m0, const uint8_t *)+sizeof(uint16_t), 1169177595Sweongyo m0->m_len - sizeof(uint16_t), ds->datarate, -1); 1170177595Sweongyo#endif 1171177595Sweongyo 1172177595Sweongyo MALO_TXQ_LOCK(txq); 1173177595Sweongyo if (!IS_DATA_FRAME(wh)) 1174177595Sweongyo ds->status |= htole32(1); 1175177595Sweongyo ds->status |= htole32(MALO_TXD_STATUS_FW_OWNED); 1176177595Sweongyo STAILQ_INSERT_TAIL(&txq->active, bf, bf_list); 1177177595Sweongyo MALO_TXDESC_SYNC(txq, ds, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1178177595Sweongyo 1179177595Sweongyo ifp->if_opackets++; 1180177595Sweongyo ifp->if_timer = 5; 1181177595Sweongyo MALO_TXQ_UNLOCK(txq); 1182177595Sweongyo return 0; 1183177595Sweongyo#undef IEEE80211_DIR_DSTODS 1184177595Sweongyo} 1185177595Sweongyo 1186177595Sweongyostatic void 1187177595Sweongyomalo_start(struct ifnet *ifp) 1188177595Sweongyo{ 1189177595Sweongyo int nqueued = 0; 1190177595Sweongyo struct ether_header *eh; 1191177595Sweongyo struct malo_softc *sc = ifp->if_softc; 1192177595Sweongyo struct ieee80211_frame *wh; 1193177595Sweongyo struct ieee80211_node *ni; 1194177595Sweongyo struct ieee80211com *ic = &sc->malo_ic; 1195177595Sweongyo struct malo_txbuf *bf = NULL; 1196177595Sweongyo struct malo_txq *txq = NULL; 1197177595Sweongyo struct mbuf *m; 1198177595Sweongyo 1199177595Sweongyo if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || sc->malo_invalid) 1200177595Sweongyo return; 1201177595Sweongyo 1202177595Sweongyo for (;;) { 1203177595Sweongyo /* 1204177595Sweongyo * Poll the management queue for frames; they 1205177595Sweongyo * have priority over normal data frames. 1206177595Sweongyo */ 1207177595Sweongyo IF_DEQUEUE(&ic->ic_mgtq, m); 1208177595Sweongyo if (m == NULL) { 1209177595Sweongyo /* 1210177595Sweongyo * No data frames go out unless we're associated. 1211177595Sweongyo */ 1212177595Sweongyo if (ic->ic_state != IEEE80211_S_RUN) { 1213177595Sweongyo DPRINTF(sc, MALO_DEBUG_XMIT, 1214177595Sweongyo "%s: discard data packet, state %s\n", 1215177595Sweongyo __func__, 1216177595Sweongyo ieee80211_state_name[ic->ic_state]); 1217177595Sweongyo sc->malo_stats.mst_tx_discard++; 1218177595Sweongyo break; 1219177595Sweongyo } 1220177595Sweongyo IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1221177595Sweongyo if (m == NULL) 1222177595Sweongyo break; 1223177595Sweongyo /* 1224177595Sweongyo * Cancel any background scan. 1225177595Sweongyo */ 1226177595Sweongyo if (ic->ic_flags & IEEE80211_F_SCAN) 1227177595Sweongyo ieee80211_cancel_scan(ic); 1228177595Sweongyo 1229177595Sweongyo /* 1230177595Sweongyo * Find the node for the destination so we can do 1231177595Sweongyo * things like power save and fast frames aggregation. 1232177595Sweongyo */ 1233177595Sweongyo if (m->m_len < sizeof(struct ether_header) && 1234177595Sweongyo (m = m_pullup(m, sizeof(struct ether_header))) == 1235177595Sweongyo NULL) { 1236177595Sweongyo ic->ic_stats.is_tx_nobuf++; /* XXX */ 1237177595Sweongyo ni = NULL; 1238177595Sweongyo goto bad; 1239177595Sweongyo } 1240177595Sweongyo eh = mtod(m, struct ether_header *); 1241177595Sweongyo ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1242177595Sweongyo if (ni == NULL) { 1243177595Sweongyo /* NB: ieee80211_find_txnode does stat+msg */ 1244177595Sweongyo m_freem(m); 1245177595Sweongyo goto bad; 1246177595Sweongyo } 1247177595Sweongyo /* calculate priority so we can find the tx queue */ 1248177595Sweongyo if (ieee80211_classify(ic, m, ni)) { 1249177595Sweongyo DPRINTF(sc, MALO_DEBUG_XMIT, 1250177595Sweongyo "%s: discard, classification failure\n", 1251177595Sweongyo __func__); 1252177595Sweongyo m_freem(m); 1253177595Sweongyo goto bad; 1254177595Sweongyo } 1255177595Sweongyo 1256177595Sweongyo txq = &sc->malo_txq[0]; 1257177595Sweongyo 1258177595Sweongyo bf = malo_getbuf(sc, txq); 1259177595Sweongyo if (bf == NULL) { 1260177595Sweongyo IFQ_DRV_PREPEND(&ifp->if_snd, m); 1261177595Sweongyo ieee80211_free_node(ni); 1262177595Sweongyo 1263177595Sweongyo /* XXX blocks other traffic */ 1264177595Sweongyo ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1265177595Sweongyo sc->malo_stats.mst_tx_qstop++; 1266177595Sweongyo break; 1267177595Sweongyo } 1268177595Sweongyo ifp->if_opackets++; 1269177595Sweongyo 1270177595Sweongyo if (bpf_peers_present(ifp->if_bpf)) 1271177595Sweongyo bpf_mtap(ifp->if_bpf, m); 1272177595Sweongyo 1273177595Sweongyo /* 1274177595Sweongyo * Encapsulate the packet in prep for transmission. 1275177595Sweongyo */ 1276177595Sweongyo m = ieee80211_encap(ic, m, ni); 1277177595Sweongyo if (m == NULL) { 1278177595Sweongyo DPRINTF(sc, MALO_DEBUG_XMIT, 1279177595Sweongyo "%s: encapsulation failure\n", __func__); 1280177595Sweongyo sc->malo_stats.mst_tx_encap++; 1281177595Sweongyo goto bad; 1282177595Sweongyo } 1283177595Sweongyo } else { 1284177595Sweongyo /* 1285177595Sweongyo * Grab a TX buffer and associated resources. 1286177595Sweongyo * Note that we depend on the classification 1287177595Sweongyo * by the 802.11 layer to get to the right h/w 1288177595Sweongyo * queue. Management frames must ALWAYS go on 1289177595Sweongyo * queue 1 but we cannot just force that here 1290177595Sweongyo * because we may receive non-mgt frames through 1291177595Sweongyo * the ic_mgtq (e.g. null data frames). 1292177595Sweongyo */ 1293177595Sweongyo txq = &sc->malo_txq[0]; 1294177595Sweongyo bf = malo_getbuf(sc, txq); 1295177595Sweongyo if (bf == NULL) { 1296177595Sweongyo IF_PREPEND(&ic->ic_mgtq, m); 1297177595Sweongyo /* XXX stat */ 1298177595Sweongyo break; 1299177595Sweongyo } 1300177595Sweongyo 1301177595Sweongyo /* 1302177595Sweongyo * Hack! The referenced node pointer is in the 1303177595Sweongyo * rcvif field of the packet header. This is 1304177595Sweongyo * placed there by ieee80211_mgmt_output because 1305177595Sweongyo * we need to hold the reference with the frame 1306177595Sweongyo * and there's no other way (other than packet 1307177595Sweongyo * tags which we consider too expensive to use) 1308177595Sweongyo * to pass it along. 1309177595Sweongyo */ 1310177595Sweongyo ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1311177595Sweongyo m->m_pkthdr.rcvif = NULL; 1312177595Sweongyo 1313177595Sweongyo wh = mtod(m, struct ieee80211_frame *); 1314177595Sweongyo sc->malo_stats.mst_tx_mgmt++; 1315177595Sweongyo 1316177595Sweongyo if (bpf_peers_present(ic->ic_rawbpf)) 1317177595Sweongyo bpf_mtap(ic->ic_rawbpf, m); 1318177595Sweongyo } 1319177595Sweongyo 1320177595Sweongyo /* 1321177595Sweongyo * Pass the frame to the h/w for transmission. 1322177595Sweongyo */ 1323177595Sweongyo if (malo_tx_start(sc, ni, bf, m)) { 1324177595Sweongyo bad: 1325177595Sweongyo ifp->if_oerrors++; 1326177595Sweongyo if (bf != NULL) { 1327177595Sweongyo bf->bf_m = NULL; 1328177595Sweongyo bf->bf_node = NULL; 1329177595Sweongyo MALO_TXQ_LOCK(txq); 1330177595Sweongyo STAILQ_INSERT_HEAD(&txq->free, bf, bf_list); 1331177595Sweongyo MALO_TXQ_UNLOCK(txq); 1332177595Sweongyo } 1333177595Sweongyo ieee80211_free_node(ni); 1334177595Sweongyo continue; 1335177595Sweongyo } 1336177595Sweongyo nqueued++; 1337177595Sweongyo 1338177595Sweongyo if (nqueued >= malo_txcoalesce) { 1339177595Sweongyo /* 1340177595Sweongyo * Poke the firmware to process queued frames; 1341177595Sweongyo * see below about (lack of) locking. 1342177595Sweongyo */ 1343177595Sweongyo nqueued = 0; 1344177595Sweongyo malo_hal_txstart(sc->malo_mh, 0/*XXX*/); 1345177595Sweongyo } 1346177595Sweongyo } 1347177595Sweongyo 1348177595Sweongyo if (nqueued) { 1349177595Sweongyo /* 1350177595Sweongyo * NB: We don't need to lock against tx done because 1351177595Sweongyo * this just prods the firmware to check the transmit 1352177595Sweongyo * descriptors. The firmware will also start fetching 1353177595Sweongyo * descriptors by itself if it notices new ones are 1354177595Sweongyo * present when it goes to deliver a tx done interrupt 1355177595Sweongyo * to the host. So if we race with tx done processing 1356177595Sweongyo * it's ok. Delivering the kick here rather than in 1357177595Sweongyo * malo_tx_start is an optimization to avoid poking the 1358177595Sweongyo * firmware for each packet. 1359177595Sweongyo * 1360177595Sweongyo * NB: the queue id isn't used so 0 is ok. 1361177595Sweongyo */ 1362177595Sweongyo malo_hal_txstart(sc->malo_mh, 0/*XXX*/); 1363177595Sweongyo } 1364177595Sweongyo} 1365177595Sweongyo 1366177595Sweongyostatic void 1367177595Sweongyomalo_watchdog(struct ifnet *ifp) 1368177595Sweongyo{ 1369177595Sweongyo struct malo_softc *sc = ifp->if_softc; 1370177595Sweongyo 1371177595Sweongyo if ((ifp->if_drv_flags & IFF_DRV_RUNNING) && !sc->malo_invalid) { 1372177595Sweongyo if_printf(ifp, "watchdog timeout\n"); 1373177595Sweongyo 1374177595Sweongyo /* XXX no way to reset h/w. now */ 1375177595Sweongyo 1376177595Sweongyo ifp->if_oerrors++; 1377177595Sweongyo sc->malo_stats.mst_watchdog++; 1378177595Sweongyo } 1379177595Sweongyo} 1380177595Sweongyo 1381177595Sweongyostatic int 1382177595Sweongyomalo_hal_reset(struct malo_softc *sc) 1383177595Sweongyo{ 1384177595Sweongyo static int first = 0; 1385177595Sweongyo struct ieee80211com *ic = &sc->malo_ic; 1386177595Sweongyo struct malo_hal *mh = sc->malo_mh; 1387177595Sweongyo 1388177595Sweongyo if (first == 0) { 1389177595Sweongyo /* 1390177595Sweongyo * NB: when the device firstly is initialized, sometimes 1391177595Sweongyo * firmware could override rx/tx dma registers so we re-set 1392177595Sweongyo * these values once. 1393177595Sweongyo */ 1394177595Sweongyo malo_hal_set_rxtxdma(sc); 1395177595Sweongyo first = 1; 1396177595Sweongyo } 1397177595Sweongyo 1398177595Sweongyo malo_hal_setantenna(mh, MHA_ANTENNATYPE_RX, sc->malo_rxantenna); 1399177595Sweongyo malo_hal_setantenna(mh, MHA_ANTENNATYPE_TX, sc->malo_txantenna); 1400177595Sweongyo malo_hal_setradio(mh, 1, MHP_AUTO_PREAMBLE); 1401177595Sweongyo malo_chan_set(sc, ic->ic_curchan); 1402177595Sweongyo 1403177595Sweongyo /* XXX needs other stuffs? */ 1404177595Sweongyo 1405177595Sweongyo return 1; 1406177595Sweongyo} 1407177595Sweongyo 1408177595Sweongyostatic __inline struct mbuf * 1409177595Sweongyomalo_getrxmbuf(struct malo_softc *sc, struct malo_rxbuf *bf) 1410177595Sweongyo{ 1411177595Sweongyo struct mbuf *m; 1412177595Sweongyo bus_addr_t paddr; 1413177595Sweongyo int error; 1414177595Sweongyo 1415177595Sweongyo /* XXX don't need mbuf, just dma buffer */ 1416177595Sweongyo m = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE); 1417177595Sweongyo if (m == NULL) { 1418177595Sweongyo sc->malo_stats.mst_rx_nombuf++; /* XXX */ 1419177595Sweongyo return NULL; 1420177595Sweongyo } 1421177595Sweongyo error = bus_dmamap_load(sc->malo_dmat, bf->bf_dmamap, 1422177595Sweongyo mtod(m, caddr_t), MJUMPAGESIZE, 1423177595Sweongyo malo_load_cb, &paddr, BUS_DMA_NOWAIT); 1424177595Sweongyo if (error != 0) { 1425177595Sweongyo if_printf(sc->malo_ifp, 1426177595Sweongyo "%s: bus_dmamap_load failed, error %d\n", __func__, error); 1427177595Sweongyo m_freem(m); 1428177595Sweongyo return NULL; 1429177595Sweongyo } 1430177595Sweongyo bf->bf_data = paddr; 1431177595Sweongyo bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE); 1432177595Sweongyo 1433177595Sweongyo return m; 1434177595Sweongyo} 1435177595Sweongyo 1436177595Sweongyostatic int 1437177595Sweongyomalo_rxbuf_init(struct malo_softc *sc, struct malo_rxbuf *bf) 1438177595Sweongyo{ 1439177595Sweongyo struct malo_rxdesc *ds; 1440177595Sweongyo 1441177595Sweongyo ds = bf->bf_desc; 1442177595Sweongyo if (bf->bf_m == NULL) { 1443177595Sweongyo bf->bf_m = malo_getrxmbuf(sc, bf); 1444177595Sweongyo if (bf->bf_m == NULL) { 1445177595Sweongyo /* mark descriptor to be skipped */ 1446177595Sweongyo ds->rxcontrol = MALO_RXD_CTRL_OS_OWN; 1447177595Sweongyo /* NB: don't need PREREAD */ 1448177595Sweongyo MALO_RXDESC_SYNC(sc, ds, BUS_DMASYNC_PREWRITE); 1449177595Sweongyo return ENOMEM; 1450177595Sweongyo } 1451177595Sweongyo } 1452177595Sweongyo 1453177595Sweongyo /* 1454177595Sweongyo * Setup descriptor. 1455177595Sweongyo */ 1456177595Sweongyo ds->qosctrl = 0; 1457177595Sweongyo ds->snr = 0; 1458177595Sweongyo ds->status = MALO_RXD_STATUS_IDLE; 1459177595Sweongyo ds->channel = 0; 1460177595Sweongyo ds->pktlen = htole16(MALO_RXSIZE); 1461177595Sweongyo ds->nf = 0; 1462177595Sweongyo ds->physbuffdata = htole32(bf->bf_data); 1463177595Sweongyo /* NB: don't touch pPhysNext, set once */ 1464177595Sweongyo ds->rxcontrol = MALO_RXD_CTRL_DRIVER_OWN; 1465177595Sweongyo MALO_RXDESC_SYNC(sc, ds, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1466177595Sweongyo 1467177595Sweongyo return 0; 1468177595Sweongyo} 1469177595Sweongyo 1470177595Sweongyo/* 1471177595Sweongyo * Setup the rx data structures. This should only be done once or we may get 1472177595Sweongyo * out of sync with the firmware. 1473177595Sweongyo */ 1474177595Sweongyostatic int 1475177595Sweongyomalo_startrecv(struct malo_softc *sc) 1476177595Sweongyo{ 1477177595Sweongyo struct malo_rxbuf *bf, *prev; 1478177595Sweongyo struct malo_rxdesc *ds; 1479177595Sweongyo 1480177595Sweongyo if (sc->malo_recvsetup == 1) { 1481177595Sweongyo malo_mode_init(sc); /* set filters, etc. */ 1482177595Sweongyo return 0; 1483177595Sweongyo } 1484177595Sweongyo 1485177595Sweongyo prev = NULL; 1486177595Sweongyo STAILQ_FOREACH(bf, &sc->malo_rxbuf, bf_list) { 1487177595Sweongyo int error = malo_rxbuf_init(sc, bf); 1488177595Sweongyo if (error != 0) { 1489177595Sweongyo DPRINTF(sc, MALO_DEBUG_RECV, 1490177595Sweongyo "%s: malo_rxbuf_init failed %d\n", 1491177595Sweongyo __func__, error); 1492177595Sweongyo return error; 1493177595Sweongyo } 1494177595Sweongyo if (prev != NULL) { 1495177595Sweongyo ds = prev->bf_desc; 1496177595Sweongyo ds->physnext = htole32(bf->bf_daddr); 1497177595Sweongyo } 1498177595Sweongyo prev = bf; 1499177595Sweongyo } 1500177595Sweongyo if (prev != NULL) { 1501177595Sweongyo ds = prev->bf_desc; 1502177595Sweongyo ds->physnext = 1503177595Sweongyo htole32(STAILQ_FIRST(&sc->malo_rxbuf)->bf_daddr); 1504177595Sweongyo } 1505177595Sweongyo 1506177595Sweongyo sc->malo_recvsetup = 1; 1507177595Sweongyo 1508177595Sweongyo malo_mode_init(sc); /* set filters, etc. */ 1509177595Sweongyo 1510177595Sweongyo return 0; 1511177595Sweongyo} 1512177595Sweongyo 1513177595Sweongyostatic void 1514177595Sweongyomalo_init(void *arg) 1515177595Sweongyo{ 1516177595Sweongyo struct malo_softc *sc = (struct malo_softc *) arg; 1517177595Sweongyo struct ieee80211com *ic = &sc->malo_ic; 1518177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 1519177595Sweongyo struct malo_hal *mh = sc->malo_mh; 1520177595Sweongyo int error; 1521177595Sweongyo 1522177595Sweongyo DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags 0x%x\n", 1523177595Sweongyo __func__, ifp->if_flags); 1524177595Sweongyo 1525177595Sweongyo if (!sc->malo_fw_loaded) { 1526177595Sweongyo /* 1527177595Sweongyo * Load firmware so we can get setup. 1528177595Sweongyo */ 1529177595Sweongyo error = malo_hal_fwload(mh, "malo8335-h", "malo8335-m"); 1530177595Sweongyo if (error != 0) { 1531177595Sweongyo if_printf(ifp, "unable to setup firmware\n"); 1532177595Sweongyo return; 1533177595Sweongyo } 1534177595Sweongyo /* XXX gethwspecs() extracts correct informations? not maybe! */ 1535177595Sweongyo error = malo_hal_gethwspecs(mh, &sc->malo_hwspecs); 1536177595Sweongyo if (error != 0) { 1537177595Sweongyo if_printf(ifp, "unable to fetch h/w specs\n"); 1538177595Sweongyo return; 1539177595Sweongyo } 1540177595Sweongyo 1541177595Sweongyo DPRINTF(sc, MALO_DEBUG_FW, 1542177595Sweongyo "malo_hal_gethwspecs: hwversion 0x%x hostif 0x%x" 1543177595Sweongyo "maxnum_wcb 0x%x maxnum_mcaddr 0x%x maxnum_tx_wcb 0x%x" 1544177595Sweongyo "regioncode 0x%x num_antenna 0x%x fw_releasenum 0x%x" 1545177595Sweongyo "wcbbase0 0x%x rxdesc_read 0x%x rxdesc_write 0x%x" 1546177595Sweongyo "ul_fw_awakecookie 0x%x w[4] = %x %x %x %x", 1547177595Sweongyo sc->malo_hwspecs.hwversion, 1548177595Sweongyo sc->malo_hwspecs.hostinterface, sc->malo_hwspecs.maxnum_wcb, 1549177595Sweongyo sc->malo_hwspecs.maxnum_mcaddr, 1550177595Sweongyo sc->malo_hwspecs.maxnum_tx_wcb, 1551177595Sweongyo sc->malo_hwspecs.regioncode, sc->malo_hwspecs.num_antenna, 1552177595Sweongyo sc->malo_hwspecs.fw_releasenum, sc->malo_hwspecs.wcbbase0, 1553177595Sweongyo sc->malo_hwspecs.rxdesc_read, sc->malo_hwspecs.rxdesc_write, 1554177595Sweongyo sc->malo_hwspecs.ul_fw_awakecookie, 1555177595Sweongyo sc->malo_hwspecs.wcbbase[0], sc->malo_hwspecs.wcbbase[1], 1556177595Sweongyo sc->malo_hwspecs.wcbbase[2], sc->malo_hwspecs.wcbbase[3]); 1557177595Sweongyo 1558177595Sweongyo error = malo_setup_hwdma(sc); /* push to firmware */ 1559177595Sweongyo /* NB: malo_setupdma prints msg */ 1560177595Sweongyo if (error != 0) { 1561177595Sweongyo if_printf(ifp, "%s: failed to set up h/w dma\n", 1562177595Sweongyo __func__); 1563177595Sweongyo return; 1564177595Sweongyo } 1565177595Sweongyo 1566177595Sweongyo /* set reddomain. */ 1567177595Sweongyo ic->ic_regdomain = sc->malo_hwspecs.regioncode; 1568177595Sweongyo 1569177595Sweongyo malo_announce(sc); 1570177595Sweongyo 1571177595Sweongyo sc->malo_fw_loaded = 1; 1572177595Sweongyo } 1573177595Sweongyo 1574177595Sweongyo MALO_LOCK(sc); 1575177595Sweongyo 1576177595Sweongyo /* 1577177595Sweongyo * Stop anything previously setup. This is safe whether this is 1578177595Sweongyo * the first time through or not. 1579177595Sweongyo */ 1580177595Sweongyo malo_stop_locked(ifp, 0); 1581177595Sweongyo 1582177595Sweongyo /* 1583177595Sweongyo * Push state to the firmware. 1584177595Sweongyo */ 1585177595Sweongyo if (!malo_hal_reset(sc)) { 1586177595Sweongyo if_printf(ifp, "%s: unable to reset hardware\n", __func__); 1587177595Sweongyo goto done; 1588177595Sweongyo } 1589177595Sweongyo 1590177595Sweongyo /* 1591177595Sweongyo * Setup recv (once); transmit is already good to go. 1592177595Sweongyo */ 1593177595Sweongyo error = malo_startrecv(sc); 1594177595Sweongyo if (error != 0) { 1595177595Sweongyo if_printf(ifp, "%s: unable to start recv logic, error %d\n", 1596177595Sweongyo __func__, error); 1597177595Sweongyo goto done; 1598177595Sweongyo } 1599177595Sweongyo 1600177595Sweongyo /* 1601177595Sweongyo * Enable interrupts. 1602177595Sweongyo */ 1603177595Sweongyo sc->malo_imask = MALO_A2HRIC_BIT_RX_RDY 1604177595Sweongyo | MALO_A2HRIC_BIT_TX_DONE 1605177595Sweongyo | MALO_A2HRIC_BIT_OPC_DONE 1606177595Sweongyo | MALO_A2HRIC_BIT_MAC_EVENT 1607177595Sweongyo | MALO_A2HRIC_BIT_RX_PROBLEM 1608177595Sweongyo | MALO_A2HRIC_BIT_ICV_ERROR 1609177595Sweongyo | MALO_A2HRIC_BIT_RADAR_DETECT 1610177595Sweongyo | MALO_A2HRIC_BIT_CHAN_SWITCH; 1611177595Sweongyo 1612177595Sweongyo ifp->if_drv_flags |= IFF_DRV_RUNNING; 1613177595Sweongyo ic->ic_state = IEEE80211_S_INIT; 1614177595Sweongyo IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp)); 1615177595Sweongyo 1616177595Sweongyo malo_hal_intrset(mh, sc->malo_imask); 1617177595Sweongyo 1618177595Sweongyo /* 1619177595Sweongyo * The hardware should be ready to go now so it's safe to kick 1620177595Sweongyo * the 802.11 state machine as it's likely to immediately call back 1621177595Sweongyo * to us to send mgmt frames. 1622177595Sweongyo */ 1623177595Sweongyo if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1624177595Sweongyo if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 1625177595Sweongyo ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 1626177595Sweongyo } else 1627177595Sweongyo ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1628177595Sweongyo 1629177595Sweongyodone: 1630177595Sweongyo if (error != 0) 1631177595Sweongyo if_printf(ifp, 1632177595Sweongyo "error(%d) occurred during the initializing.\n", error); 1633177595Sweongyo 1634177595Sweongyo MALO_UNLOCK(sc); 1635177595Sweongyo 1636177595Sweongyo return; 1637177595Sweongyo} 1638177595Sweongyo 1639177595Sweongyo/* 1640177595Sweongyo * Set the multicast filter contents into the hardware. 1641177595Sweongyo */ 1642177595Sweongyostatic void 1643177595Sweongyomalo_setmcastfilter(struct malo_softc *sc) 1644177595Sweongyo{ 1645177595Sweongyo struct ieee80211com *ic = &sc->malo_ic; 1646177595Sweongyo struct ifmultiaddr *ifma; 1647177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 1648177595Sweongyo uint8_t macs[IEEE80211_ADDR_LEN * MALO_HAL_MCAST_MAX]; 1649177595Sweongyo uint8_t *mp; 1650177595Sweongyo int nmc; 1651177595Sweongyo 1652177595Sweongyo mp = macs; 1653177595Sweongyo nmc = 0; 1654177595Sweongyo 1655177595Sweongyo if (ic->ic_opmode == IEEE80211_M_MONITOR || 1656177595Sweongyo (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC))) 1657177595Sweongyo goto all; 1658177595Sweongyo 1659177595Sweongyo IF_ADDR_LOCK(ifp); 1660177595Sweongyo TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1661177595Sweongyo if (ifma->ifma_addr->sa_family != AF_LINK) 1662177595Sweongyo continue; 1663177595Sweongyo 1664177595Sweongyo if (nmc == MALO_HAL_MCAST_MAX) { 1665177595Sweongyo ifp->if_flags |= IFF_ALLMULTI; 1666177595Sweongyo IF_ADDR_UNLOCK(ifp); 1667177595Sweongyo goto all; 1668177595Sweongyo } 1669177595Sweongyo IEEE80211_ADDR_COPY(mp, 1670177595Sweongyo LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); 1671177595Sweongyo 1672177595Sweongyo mp += IEEE80211_ADDR_LEN, nmc++; 1673177595Sweongyo } 1674177595Sweongyo IF_ADDR_UNLOCK(ifp); 1675177595Sweongyo 1676177595Sweongyo malo_hal_setmcast(sc->malo_mh, nmc, macs); 1677177595Sweongyo 1678177595Sweongyoall: 1679177595Sweongyo /* 1680177595Sweongyo * XXX we don't know how to set the f/w for supporting 1681177595Sweongyo * IFF_ALLMULTI | IFF_PROMISC cases 1682177595Sweongyo */ 1683177595Sweongyo return; 1684177595Sweongyo} 1685177595Sweongyo 1686177595Sweongyostatic int 1687177595Sweongyomalo_mode_init(struct malo_softc *sc) 1688177595Sweongyo{ 1689177595Sweongyo struct ieee80211com *ic = &sc->malo_ic; 1690177595Sweongyo struct ifnet *ifp = ic->ic_ifp; 1691177595Sweongyo struct malo_hal *mh = sc->malo_mh; 1692177595Sweongyo 1693177595Sweongyo /* 1694177595Sweongyo * Handle any link-level address change. Note that we only 1695177595Sweongyo * need to force ic_myaddr; any other addresses are handled 1696177595Sweongyo * as a byproduct of the ifnet code marking the interface 1697177595Sweongyo * down then up. 1698177595Sweongyo */ 1699177595Sweongyo IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp)); 1700177595Sweongyo 1701177595Sweongyo /* 1702177595Sweongyo * NB: Ignore promisc in hostap mode; it's set by the 1703177595Sweongyo * bridge. This is wrong but we have no way to 1704177595Sweongyo * identify internal requests (from the bridge) 1705177595Sweongyo * versus external requests such as for tcpdump. 1706177595Sweongyo */ 1707177595Sweongyo malo_hal_setpromisc(mh, (ifp->if_flags & IFF_PROMISC) && 1708177595Sweongyo ic->ic_opmode != IEEE80211_M_HOSTAP); 1709177595Sweongyo malo_setmcastfilter(sc); 1710177595Sweongyo 1711177595Sweongyo return ENXIO; 1712177595Sweongyo} 1713177595Sweongyo 1714177595Sweongyostatic void 1715177595Sweongyomalo_tx_draintxq(struct malo_softc *sc, struct malo_txq *txq) 1716177595Sweongyo{ 1717177595Sweongyo struct ieee80211_node *ni; 1718177595Sweongyo struct malo_txbuf *bf; 1719177595Sweongyo u_int ix; 1720177595Sweongyo 1721177595Sweongyo /* 1722177595Sweongyo * NB: this assumes output has been stopped and 1723177595Sweongyo * we do not need to block malo_tx_tasklet 1724177595Sweongyo */ 1725177595Sweongyo for (ix = 0;; ix++) { 1726177595Sweongyo MALO_TXQ_LOCK(txq); 1727177595Sweongyo bf = STAILQ_FIRST(&txq->active); 1728177595Sweongyo if (bf == NULL) { 1729177595Sweongyo MALO_TXQ_UNLOCK(txq); 1730177595Sweongyo break; 1731177595Sweongyo } 1732177595Sweongyo STAILQ_REMOVE_HEAD(&txq->active, bf_list); 1733177595Sweongyo MALO_TXQ_UNLOCK(txq); 1734177595Sweongyo#ifdef MALO_DEBUG 1735177595Sweongyo if (sc->malo_debug & MALO_DEBUG_RESET) { 1736177595Sweongyo const struct malo_txrec *tr = 1737177595Sweongyo mtod(bf->bf_m, const struct malo_txrec *); 1738177595Sweongyo malo_printtxbuf(bf, txq->qnum, ix); 1739177595Sweongyo ieee80211_dump_pkt(&sc->malo_ic, 1740177595Sweongyo (const uint8_t *)&tr->wh, 1741177595Sweongyo bf->bf_m->m_len - sizeof(tr->fwlen), 0, -1); 1742177595Sweongyo } 1743177595Sweongyo#endif /* MALO_DEBUG */ 1744177595Sweongyo bus_dmamap_unload(sc->malo_dmat, bf->bf_dmamap); 1745177595Sweongyo ni = bf->bf_node; 1746177595Sweongyo bf->bf_node = NULL; 1747177595Sweongyo if (ni != NULL) { 1748177595Sweongyo /* 1749177595Sweongyo * Reclaim node reference. 1750177595Sweongyo */ 1751177595Sweongyo ieee80211_free_node(ni); 1752177595Sweongyo } 1753177595Sweongyo m_freem(bf->bf_m); 1754177595Sweongyo bf->bf_m = NULL; 1755177595Sweongyo 1756177595Sweongyo MALO_TXQ_LOCK(txq); 1757177595Sweongyo STAILQ_INSERT_TAIL(&txq->free, bf, bf_list); 1758177595Sweongyo txq->nfree++; 1759177595Sweongyo MALO_TXQ_UNLOCK(txq); 1760177595Sweongyo } 1761177595Sweongyo} 1762177595Sweongyo 1763177595Sweongyostatic void 1764177595Sweongyomalo_stop_locked(struct ifnet *ifp, int disable) 1765177595Sweongyo{ 1766177595Sweongyo int i; 1767177595Sweongyo struct malo_softc *sc = ifp->if_softc; 1768177595Sweongyo struct ieee80211com *ic = &sc->malo_ic; 1769177595Sweongyo struct malo_hal *mh = sc->malo_mh; 1770177595Sweongyo 1771177595Sweongyo DPRINTF(sc, MALO_DEBUG_ANY, "%s: invalid %u if_flags 0x%x\n", 1772177595Sweongyo __func__, sc->malo_invalid, ifp->if_flags); 1773177595Sweongyo 1774177595Sweongyo MALO_LOCK_ASSERT(sc); 1775177595Sweongyo 1776177595Sweongyo if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 1777177595Sweongyo return; 1778177595Sweongyo 1779177595Sweongyo /* 1780177595Sweongyo * Shutdown the hardware and driver: 1781177595Sweongyo * reset 802.11 state machine 1782177595Sweongyo * turn off timers 1783177595Sweongyo * disable interrupts 1784177595Sweongyo * turn off the radio 1785177595Sweongyo * clear transmit machinery 1786177595Sweongyo * clear receive machinery 1787177595Sweongyo * drain and release tx queues 1788177595Sweongyo * reclaim beacon resources 1789177595Sweongyo * power down hardware 1790177595Sweongyo * 1791177595Sweongyo * Note that some of this work is not possible if the hardware 1792177595Sweongyo * is gone (invalid). 1793177595Sweongyo */ 1794177595Sweongyo ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 1795177595Sweongyo ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1796177595Sweongyo ifp->if_timer = 0; 1797177595Sweongyo if (sc->malo_fw_loaded == 1) { 1798177595Sweongyo /* diable interrupt. */ 1799177595Sweongyo malo_hal_intrset(mh, 0); 1800177595Sweongyo /* turn off the radio. */ 1801177595Sweongyo malo_hal_setradio(mh, 0, MHP_AUTO_PREAMBLE); 1802177595Sweongyo } 1803177595Sweongyo 1804177595Sweongyo /* drain and release tx queues. */ 1805177595Sweongyo for (i = 0; i < MALO_NUM_TX_QUEUES; i++) 1806177595Sweongyo malo_tx_draintxq(sc, &sc->malo_txq[i]); 1807177595Sweongyo} 1808177595Sweongyo 1809177595Sweongyostatic int 1810177595Sweongyomalo_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1811177595Sweongyo{ 1812177595Sweongyo#define MALO_IS_RUNNING(ifp) \ 1813177595Sweongyo ((ifp->if_flags & IFF_UP) && (ifp->if_drv_flags & IFF_DRV_RUNNING)) 1814177595Sweongyo struct malo_softc *sc = ifp->if_softc; 1815177595Sweongyo struct ieee80211com *ic = &sc->malo_ic; 1816177595Sweongyo int error = 0; 1817177595Sweongyo 1818177595Sweongyo MALO_LOCK(sc); 1819177595Sweongyo 1820177595Sweongyo switch (cmd) { 1821177595Sweongyo case SIOCSIFFLAGS: 1822177595Sweongyo if (MALO_IS_RUNNING(ifp)) { 1823177595Sweongyo /* 1824177595Sweongyo * To avoid rescanning another access point, 1825177595Sweongyo * do not call malo_init() here. Instead, 1826177595Sweongyo * only reflect promisc mode settings. 1827177595Sweongyo */ 1828177595Sweongyo malo_mode_init(sc); 1829177595Sweongyo } else if (ifp->if_flags & IFF_UP) { 1830177595Sweongyo /* 1831177595Sweongyo * Beware of being called during attach/detach 1832177595Sweongyo * to reset promiscuous mode. In that case we 1833177595Sweongyo * will still be marked UP but not RUNNING. 1834177595Sweongyo * However trying to re-init the interface 1835177595Sweongyo * is the wrong thing to do as we've already 1836177595Sweongyo * torn down much of our state. There's 1837177595Sweongyo * probably a better way to deal with this. 1838177595Sweongyo */ 1839177595Sweongyo if (!sc->malo_invalid) 1840177595Sweongyo malo_init(sc); 1841177595Sweongyo } else 1842177595Sweongyo malo_stop_locked(ifp, 1); 1843177595Sweongyo break; 1844177595Sweongyo case SIOCADDMULTI: 1845177595Sweongyo case SIOCDELMULTI: 1846177595Sweongyo /* 1847177595Sweongyo * The upper layer has already installed/removed 1848177595Sweongyo * the multicast address(es), just recalculate the 1849177595Sweongyo * multicast filter for the card. 1850177595Sweongyo */ 1851177595Sweongyo if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1852177595Sweongyo malo_mode_init(sc); 1853177595Sweongyo break; 1854177595Sweongyo default: 1855177595Sweongyo error = ieee80211_ioctl(ic, cmd, data); 1856177595Sweongyo if (error == ENETRESET) { 1857177595Sweongyo if (MALO_IS_RUNNING(ifp) && 1858177595Sweongyo ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 1859177595Sweongyo malo_init(sc); 1860177595Sweongyo error = 0; 1861177595Sweongyo } 1862177595Sweongyo if (error == ERESTART) { 1863177595Sweongyo /* XXX we need to reset the device here. */ 1864177595Sweongyo error = 0; 1865177595Sweongyo } 1866177595Sweongyo break; 1867177595Sweongyo } 1868177595Sweongyo 1869177595Sweongyo MALO_UNLOCK(sc); 1870177595Sweongyo 1871177595Sweongyo return error; 1872177595Sweongyo#undef MALO_IS_RUNNING 1873177595Sweongyo} 1874177595Sweongyo 1875177595Sweongyo/* 1876177595Sweongyo * Callback from the 802.11 layer to update the slot time 1877177595Sweongyo * based on the current setting. We use it to notify the 1878177595Sweongyo * firmware of ERP changes and the f/w takes care of things 1879177595Sweongyo * like slot time and preamble. 1880177595Sweongyo */ 1881177595Sweongyostatic void 1882177595Sweongyomalo_updateslot(struct ifnet *ifp) 1883177595Sweongyo{ 1884177595Sweongyo struct malo_softc *sc = ifp->if_softc; 1885177595Sweongyo struct ieee80211com *ic = &sc->malo_ic; 1886177595Sweongyo struct malo_hal *mh = sc->malo_mh; 1887177595Sweongyo int error; 1888177595Sweongyo 1889177595Sweongyo /* NB: can be called early; suppress needless cmds */ 1890177595Sweongyo if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1891177595Sweongyo return; 1892177595Sweongyo 1893177595Sweongyo DPRINTF(sc, MALO_DEBUG_RESET, 1894177595Sweongyo "%s: chan %u MHz/flags 0x%x %s slot, (ic_flags 0x%x)\n", 1895177595Sweongyo __func__, ic->ic_curchan->ic_freq, ic->ic_curchan->ic_flags, 1896177595Sweongyo ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long", ic->ic_flags); 1897177595Sweongyo 1898177595Sweongyo if (ic->ic_flags & IEEE80211_F_SHSLOT) 1899177595Sweongyo error = malo_hal_set_slot(mh, 1); 1900177595Sweongyo else 1901177595Sweongyo error = malo_hal_set_slot(mh, 0); 1902177595Sweongyo 1903177595Sweongyo if (error != 0) 1904177595Sweongyo device_printf(sc->malo_dev, "setting %s slot failed\n", 1905177595Sweongyo ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long"); 1906177595Sweongyo} 1907177595Sweongyo 1908177595Sweongyostatic int 1909177595Sweongyomalo_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1910177595Sweongyo{ 1911177595Sweongyo struct ieee80211_node *ni = ic->ic_bss; 1912177595Sweongyo struct ifnet *ifp = ic->ic_ifp; 1913177595Sweongyo struct malo_softc *sc = ifp->if_softc; 1914177595Sweongyo struct malo_hal *mh = sc->malo_mh; 1915177595Sweongyo int error; 1916177595Sweongyo 1917177595Sweongyo DPRINTF(sc, MALO_DEBUG_STATE, "%s: %s -> %s\n", __func__, 1918177595Sweongyo ieee80211_state_name[ic->ic_state], 1919177595Sweongyo ieee80211_state_name[nstate]); 1920177595Sweongyo 1921177595Sweongyo /* 1922177595Sweongyo * Carry out firmware actions per-state. 1923177595Sweongyo */ 1924177595Sweongyo switch (nstate) { 1925177595Sweongyo case IEEE80211_S_INIT: 1926177595Sweongyo case IEEE80211_S_SCAN: 1927177595Sweongyo case IEEE80211_S_AUTH: 1928177595Sweongyo /* NB: do nothing. */ 1929177595Sweongyo break; 1930177595Sweongyo case IEEE80211_S_ASSOC: 1931177595Sweongyo malo_hal_setradio(mh, 1, 1932177595Sweongyo (ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? 1933177595Sweongyo MHP_SHORT_PREAMBLE : MHP_LONG_PREAMBLE); 1934177595Sweongyo break; 1935177595Sweongyo case IEEE80211_S_RUN: 1936177595Sweongyo DPRINTF(sc, MALO_DEBUG_STATE, 1937177595Sweongyo "%s: %s(RUN): ic_flags 0x%08x bintvl %d bssid %s " 1938177595Sweongyo "capinfo 0x%04x chan %d\n", 1939177595Sweongyo ifp->if_xname, __func__, ic->ic_flags, 1940177595Sweongyo ni->ni_intval, ether_sprintf(ni->ni_bssid), ni->ni_capinfo, 1941177595Sweongyo ieee80211_chan2ieee(ic, ic->ic_curchan)); 1942177595Sweongyo 1943177595Sweongyo switch (ic->ic_opmode) { 1944177595Sweongyo case IEEE80211_M_STA: 1945177595Sweongyo DPRINTF(sc, MALO_DEBUG_STATE, "%s: %s: aid 0x%x\n", 1946177595Sweongyo ic->ic_ifp->if_xname, __func__, ni->ni_associd); 1947177595Sweongyo malo_hal_setassocid(sc->malo_mh, 1948177595Sweongyo ni->ni_bssid, ni->ni_associd); 1949177595Sweongyo 1950177595Sweongyo if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) 1951177595Sweongyo /* automatic rate adaption */ 1952177595Sweongyo malo_hal_set_rate(mh, ic->ic_curmode, 0); 1953177595Sweongyo else 1954177595Sweongyo /* fixed rate */ 1955177595Sweongyo malo_hal_set_rate(mh, ic->ic_curmode, 1956177595Sweongyo malo_fix2rate(ic->ic_fixed_rate)); 1957177595Sweongyo break; 1958177595Sweongyo default: 1959177595Sweongyo break; 1960177595Sweongyo } 1961177595Sweongyo 1962177595Sweongyo break; 1963177595Sweongyo default: 1964177595Sweongyo if_printf(ifp, "%s: can't handle state %s -> %s\n", 1965177595Sweongyo __func__, ieee80211_state_name[ic->ic_state], 1966177595Sweongyo ieee80211_state_name[nstate]); 1967177595Sweongyo } 1968177595Sweongyo 1969177595Sweongyo /* 1970177595Sweongyo * Invoke the parent method to complete the work. 1971177595Sweongyo */ 1972177595Sweongyo error = sc->malo_newstate(ic, nstate, arg); 1973177595Sweongyo 1974177595Sweongyo return error; 1975177595Sweongyo} 1976177595Sweongyo 1977177595Sweongyostatic int 1978177595Sweongyomalo_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1979177595Sweongyo const struct ieee80211_bpf_params *params) 1980177595Sweongyo{ 1981177595Sweongyo struct ieee80211com *ic = ni->ni_ic; 1982177595Sweongyo struct ifnet *ifp = ic->ic_ifp; 1983177595Sweongyo struct malo_softc *sc = ifp->if_softc; 1984177595Sweongyo struct malo_txbuf *bf; 1985177595Sweongyo struct malo_txq *txq; 1986177595Sweongyo 1987177595Sweongyo if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || sc->malo_invalid) { 1988177595Sweongyo ieee80211_free_node(ni); 1989177595Sweongyo m_freem(m); 1990177595Sweongyo return ENETDOWN; 1991177595Sweongyo } 1992177595Sweongyo 1993177595Sweongyo /* 1994177595Sweongyo * Grab a TX buffer and associated resources. Note that we depend 1995177595Sweongyo * on the classification by the 802.11 layer to get to the right h/w 1996177595Sweongyo * queue. Management frames must ALWAYS go on queue 1 but we 1997177595Sweongyo * cannot just force that here because we may receive non-mgt frames. 1998177595Sweongyo */ 1999177595Sweongyo txq = &sc->malo_txq[0]; 2000177595Sweongyo bf = malo_getbuf(sc, txq); 2001177595Sweongyo if (bf == NULL) { 2002177595Sweongyo /* XXX blocks other traffic */ 2003177595Sweongyo ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2004177595Sweongyo ieee80211_free_node(ni); 2005177595Sweongyo m_freem(m); 2006177595Sweongyo return ENOBUFS; 2007177595Sweongyo } 2008177595Sweongyo 2009177595Sweongyo /* 2010177595Sweongyo * Pass the frame to the h/w for transmission. 2011177595Sweongyo */ 2012177595Sweongyo if (malo_tx_start(sc, ni, bf, m) != 0) { 2013177595Sweongyo ifp->if_oerrors++; 2014177595Sweongyo bf->bf_m = NULL; 2015177595Sweongyo bf->bf_node = NULL; 2016177595Sweongyo MALO_TXQ_LOCK(txq); 2017177595Sweongyo STAILQ_INSERT_HEAD(&txq->free, bf, bf_list); 2018177595Sweongyo txq->nfree++; 2019177595Sweongyo MALO_TXQ_UNLOCK(txq); 2020177595Sweongyo 2021177595Sweongyo ieee80211_free_node(ni); 2022177595Sweongyo return EIO; /* XXX */ 2023177595Sweongyo } 2024177595Sweongyo 2025177595Sweongyo /* 2026177595Sweongyo * NB: We don't need to lock against tx done because this just 2027177595Sweongyo * prods the firmware to check the transmit descriptors. The firmware 2028177595Sweongyo * will also start fetching descriptors by itself if it notices 2029177595Sweongyo * new ones are present when it goes to deliver a tx done interrupt 2030177595Sweongyo * to the host. So if we race with tx done processing it's ok. 2031177595Sweongyo * Delivering the kick here rather than in malo_tx_start is 2032177595Sweongyo * an optimization to avoid poking the firmware for each packet. 2033177595Sweongyo * 2034177595Sweongyo * NB: the queue id isn't used so 0 is ok. 2035177595Sweongyo */ 2036177595Sweongyo malo_hal_txstart(sc->malo_mh, 0/*XXX*/); 2037177595Sweongyo 2038177595Sweongyo return 0; 2039177595Sweongyo} 2040177595Sweongyo 2041177595Sweongyostatic int 2042177595Sweongyomalo_media_change(struct ifnet *ifp) 2043177595Sweongyo{ 2044177595Sweongyo#define IS_UP(ifp) \ 2045177595Sweongyo ((ifp->if_flags & IFF_UP) && (ifp->if_drv_flags & IFF_DRV_RUNNING)) 2046177595Sweongyo int error; 2047177595Sweongyo 2048177595Sweongyo error = ieee80211_media_change(ifp); 2049177595Sweongyo if (error == ENETRESET) { 2050177595Sweongyo struct malo_softc *sc = ifp->if_softc; 2051177595Sweongyo 2052177595Sweongyo if (IS_UP(ifp)) 2053177595Sweongyo malo_init(sc); 2054177595Sweongyo error = 0; 2055177595Sweongyo } 2056177595Sweongyo return error; 2057177595Sweongyo#undef IS_UP 2058177595Sweongyo} 2059177595Sweongyo 2060177595Sweongyostatic void 2061177595Sweongyomalo_bpfattach(struct malo_softc *sc) 2062177595Sweongyo{ 2063177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 2064177595Sweongyo 2065177595Sweongyo bpfattach2(ifp, DLT_IEEE802_11_RADIO, 2066177595Sweongyo sizeof(struct ieee80211_frame) + sizeof(sc->malo_tx_th), 2067177595Sweongyo &sc->malo_drvbpf); 2068177595Sweongyo 2069177595Sweongyo /* 2070177595Sweongyo * Initialize constant fields. 2071177595Sweongyo * XXX make header lengths a multiple of 32-bits so subsequent 2072177595Sweongyo * headers are properly aligned; this is a kludge to keep 2073177595Sweongyo * certain applications happy. 2074177595Sweongyo * 2075177595Sweongyo * NB: the channel is setup each time we transition to the 2076177595Sweongyo * RUN state to avoid filling it in for each frame. 2077177595Sweongyo */ 2078177595Sweongyo sc->malo_tx_th_len = roundup(sizeof(sc->malo_tx_th), sizeof(uint32_t)); 2079177595Sweongyo sc->malo_tx_th.wt_ihdr.it_len = htole16(sc->malo_tx_th_len); 2080177595Sweongyo sc->malo_tx_th.wt_ihdr.it_present = htole32(MALO_TX_RADIOTAP_PRESENT); 2081177595Sweongyo 2082177595Sweongyo sc->malo_rx_th_len = roundup(sizeof(sc->malo_rx_th), sizeof(uint32_t)); 2083177595Sweongyo sc->malo_rx_th.wr_ihdr.it_len = htole16(sc->malo_rx_th_len); 2084177595Sweongyo sc->malo_rx_th.wr_ihdr.it_present = htole32(MALO_RX_RADIOTAP_PRESENT); 2085177595Sweongyo} 2086177595Sweongyo 2087177595Sweongyostatic void 2088177595Sweongyomalo_sysctlattach(struct malo_softc *sc) 2089177595Sweongyo{ 2090177595Sweongyo#ifdef MALO_DEBUG 2091177595Sweongyo struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->malo_dev); 2092177595Sweongyo struct sysctl_oid *tree = device_get_sysctl_tree(sc->malo_dev); 2093177595Sweongyo 2094177595Sweongyo sc->malo_debug = malo_debug; 2095177595Sweongyo SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 2096177595Sweongyo "debug", CTLFLAG_RW, &sc->malo_debug, 0, 2097177595Sweongyo "control debugging printfs"); 2098177595Sweongyo#endif 2099177595Sweongyo} 2100177595Sweongyo 2101177595Sweongyostatic void 2102177595Sweongyomalo_announce(struct malo_softc *sc) 2103177595Sweongyo{ 2104177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 2105177595Sweongyo 2106177595Sweongyo if_printf(ifp, "versions [hw %d fw %d.%d.%d.%d] (regioncode %d)\n", 2107177595Sweongyo sc->malo_hwspecs.hwversion, 2108177595Sweongyo (sc->malo_hwspecs.fw_releasenum >> 24) & 0xff, 2109177595Sweongyo (sc->malo_hwspecs.fw_releasenum >> 16) & 0xff, 2110177595Sweongyo (sc->malo_hwspecs.fw_releasenum >> 8) & 0xff, 2111177595Sweongyo (sc->malo_hwspecs.fw_releasenum >> 0) & 0xff, 2112177595Sweongyo sc->malo_hwspecs.regioncode); 2113177595Sweongyo 2114177595Sweongyo if (bootverbose || malo_rxbuf != MALO_RXBUF) 2115177595Sweongyo if_printf(ifp, "using %u rx buffers\n", malo_rxbuf); 2116177595Sweongyo if (bootverbose || malo_txbuf != MALO_TXBUF) 2117177595Sweongyo if_printf(ifp, "using %u tx buffers\n", malo_txbuf); 2118177595Sweongyo} 2119177595Sweongyo 2120177595Sweongyo/* 2121177595Sweongyo * Convert net80211 channel to a HAL channel. 2122177595Sweongyo */ 2123177595Sweongyostatic void 2124177595Sweongyomalo_mapchan(struct malo_hal_channel *hc, const struct ieee80211_channel *chan) 2125177595Sweongyo{ 2126177595Sweongyo hc->channel = chan->ic_ieee; 2127177595Sweongyo 2128177595Sweongyo *(uint32_t *)&hc->flags = 0; 2129177595Sweongyo if (IEEE80211_IS_CHAN_2GHZ(chan)) 2130177595Sweongyo hc->flags.freqband = MALO_FREQ_BAND_2DOT4GHZ; 2131177595Sweongyo} 2132177595Sweongyo 2133177595Sweongyo/* 2134177595Sweongyo * Set/change channels. If the channel is really being changed, 2135177595Sweongyo * it's done by reseting the chip. To accomplish this we must 2136177595Sweongyo * first cleanup any pending DMA, then restart stuff after a la 2137177595Sweongyo * malo_init. 2138177595Sweongyo */ 2139177595Sweongyostatic int 2140177595Sweongyomalo_chan_set(struct malo_softc *sc, struct ieee80211_channel *chan) 2141177595Sweongyo{ 2142177595Sweongyo struct malo_hal *mh = sc->malo_mh; 2143177595Sweongyo struct malo_hal_channel hchan; 2144177595Sweongyo 2145177595Sweongyo DPRINTF(sc, MALO_DEBUG_RESET, "%s: chan %u MHz/flags 0x%x\n", 2146177595Sweongyo __func__, chan->ic_freq, chan->ic_flags); 2147177595Sweongyo 2148177595Sweongyo /* 2149177595Sweongyo * Convert to a HAL channel description with the flags constrained 2150177595Sweongyo * to reflect the current operating mode. 2151177595Sweongyo */ 2152177595Sweongyo malo_mapchan(&hchan, chan); 2153177595Sweongyo malo_hal_intrset(mh, 0); /* disable interrupts */ 2154177595Sweongyo malo_hal_setchannel(mh, &hchan); 2155177595Sweongyo malo_hal_settxpower(mh, &hchan); 2156177595Sweongyo 2157177595Sweongyo /* 2158177595Sweongyo * Update internal state. 2159177595Sweongyo */ 2160177595Sweongyo sc->malo_tx_th.wt_chan_freq = htole16(chan->ic_freq); 2161177595Sweongyo sc->malo_rx_th.wr_chan_freq = htole16(chan->ic_freq); 2162177595Sweongyo if (IEEE80211_IS_CHAN_ANYG(chan)) { 2163177595Sweongyo sc->malo_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_G); 2164177595Sweongyo sc->malo_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_G); 2165177595Sweongyo } else { 2166177595Sweongyo sc->malo_tx_th.wt_chan_flags = htole16(IEEE80211_CHAN_B); 2167177595Sweongyo sc->malo_rx_th.wr_chan_flags = htole16(IEEE80211_CHAN_B); 2168177595Sweongyo } 2169177595Sweongyo sc->malo_curchan = hchan; 2170177595Sweongyo malo_hal_intrset(mh, sc->malo_imask); 2171177595Sweongyo 2172177595Sweongyo return 0; 2173177595Sweongyo} 2174177595Sweongyo 2175177595Sweongyostatic void 2176177595Sweongyomalo_scan_start(struct ieee80211com *ic) 2177177595Sweongyo{ 2178177595Sweongyo struct ifnet *ifp = ic->ic_ifp; 2179177595Sweongyo struct malo_softc *sc = ifp->if_softc; 2180177595Sweongyo 2181177595Sweongyo DPRINTF(sc, MALO_DEBUG_STATE, "%s\n", __func__); 2182177595Sweongyo} 2183177595Sweongyo 2184177595Sweongyostatic void 2185177595Sweongyomalo_scan_end(struct ieee80211com *ic) 2186177595Sweongyo{ 2187177595Sweongyo struct ifnet *ifp = ic->ic_ifp; 2188177595Sweongyo struct malo_softc *sc = ifp->if_softc; 2189177595Sweongyo 2190177595Sweongyo DPRINTF(sc, MALO_DEBUG_STATE, "%s\n", __func__); 2191177595Sweongyo} 2192177595Sweongyo 2193177595Sweongyostatic void 2194177595Sweongyomalo_set_channel(struct ieee80211com *ic) 2195177595Sweongyo{ 2196177595Sweongyo struct ifnet *ifp = ic->ic_ifp; 2197177595Sweongyo struct malo_softc *sc = ifp->if_softc; 2198177595Sweongyo 2199177595Sweongyo (void) malo_chan_set(sc, ic->ic_curchan); 2200177595Sweongyo} 2201177595Sweongyo 2202177595Sweongyostatic void 2203177595Sweongyomalo_rx_proc(void *arg, int npending) 2204177595Sweongyo{ 2205177595Sweongyo#define IEEE80211_DIR_DSTODS(wh) \ 2206177595Sweongyo ((((const struct ieee80211_frame *)wh)->i_fc[1] & \ 2207177595Sweongyo IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS) 2208177595Sweongyo struct malo_softc *sc = arg; 2209177595Sweongyo struct malo_rxbuf *bf; 2210177595Sweongyo struct ieee80211com *ic = &sc->malo_ic; 2211177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 2212177595Sweongyo struct malo_rxdesc *ds; 2213177595Sweongyo struct mbuf *m, *mnew; 2214177595Sweongyo struct ieee80211_qosframe *wh; 2215177595Sweongyo struct ieee80211_qosframe_addr4 *wh4; 2216177595Sweongyo struct ieee80211_node *ni; 2217177595Sweongyo int off, len, hdrlen, pktlen, rssi, ntodo; 2218177595Sweongyo uint8_t *data, status; 2219177595Sweongyo uint32_t readptr, writeptr; 2220177595Sweongyo 2221177595Sweongyo DPRINTF(sc, MALO_DEBUG_RX_PROC, 2222177595Sweongyo "%s: pending %u rdptr(0x%x) 0x%x wrptr(0x%x) 0x%x\n", 2223177595Sweongyo __func__, npending, 2224177595Sweongyo sc->malo_hwspecs.rxdesc_read, 2225177595Sweongyo malo_bar0_read4(sc, sc->malo_hwspecs.rxdesc_read), 2226177595Sweongyo sc->malo_hwspecs.rxdesc_write, 2227177595Sweongyo malo_bar0_read4(sc, sc->malo_hwspecs.rxdesc_write)); 2228177595Sweongyo 2229177595Sweongyo readptr = malo_bar0_read4(sc, sc->malo_hwspecs.rxdesc_read); 2230177595Sweongyo writeptr = malo_bar0_read4(sc, sc->malo_hwspecs.rxdesc_write); 2231177595Sweongyo if (readptr == writeptr) 2232177595Sweongyo return; 2233177595Sweongyo 2234177595Sweongyo bf = sc->malo_rxnext; 2235177595Sweongyo for (ntodo = malo_rxquota; ntodo > 0 && (readptr != writeptr); 2236177595Sweongyo ntodo--) { 2237177595Sweongyo if (bf == NULL) { 2238177595Sweongyo bf = STAILQ_FIRST(&sc->malo_rxbuf); 2239177595Sweongyo break; 2240177595Sweongyo } 2241177595Sweongyo ds = bf->bf_desc; 2242177595Sweongyo if (bf->bf_m == NULL) { 2243177595Sweongyo /* 2244177595Sweongyo * If data allocation failed previously there 2245177595Sweongyo * will be no buffer; try again to re-populate it. 2246177595Sweongyo * Note the firmware will not advance to the next 2247177595Sweongyo * descriptor with a dma buffer so we must mimic 2248177595Sweongyo * this or we'll get out of sync. 2249177595Sweongyo */ 2250177595Sweongyo DPRINTF(sc, MALO_DEBUG_ANY, 2251177595Sweongyo "%s: rx buf w/o dma memory\n", __func__); 2252177595Sweongyo (void)malo_rxbuf_init(sc, bf); 2253177595Sweongyo break; 2254177595Sweongyo } 2255177595Sweongyo MALO_RXDESC_SYNC(sc, ds, 2256177595Sweongyo BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2257177595Sweongyo if (ds->rxcontrol != MALO_RXD_CTRL_DMA_OWN) 2258177595Sweongyo break; 2259177595Sweongyo 2260177595Sweongyo readptr = le32toh(ds->physnext); 2261177595Sweongyo 2262177595Sweongyo#ifdef MALO_DEBUG 2263177595Sweongyo if (sc->malo_debug & MALO_DEBUG_RECV_DESC) 2264177595Sweongyo malo_printrxbuf(bf, 0); 2265177595Sweongyo#endif 2266177595Sweongyo status = ds->status; 2267177595Sweongyo if (status & MALO_RXD_STATUS_DECRYPT_ERR_MASK) { 2268177595Sweongyo ifp->if_ierrors++; 2269177595Sweongyo goto rx_next; 2270177595Sweongyo } 2271177595Sweongyo /* 2272177595Sweongyo * Sync the data buffer. 2273177595Sweongyo */ 2274177595Sweongyo len = le16toh(ds->pktlen); 2275177595Sweongyo bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap, 2276177595Sweongyo BUS_DMASYNC_POSTREAD); 2277177595Sweongyo /* 2278177595Sweongyo * The 802.11 header is provided all or in part at the front; 2279177595Sweongyo * use it to calculate the true size of the header that we'll 2280177595Sweongyo * construct below. We use this to figure out where to copy 2281177595Sweongyo * payload prior to constructing the header. 2282177595Sweongyo */ 2283177595Sweongyo m = bf->bf_m; 2284177595Sweongyo data = mtod(m, uint8_t *); 2285177595Sweongyo hdrlen = ieee80211_anyhdrsize(data + sizeof(uint16_t)); 2286177595Sweongyo off = sizeof(uint16_t) + sizeof(struct ieee80211_frame_addr4); 2287177595Sweongyo 2288177595Sweongyo /* 2289177595Sweongyo * Calculate RSSI. XXX wrong 2290177595Sweongyo */ 2291177595Sweongyo rssi = 2 * ((int) ds->snr - ds->nf); /* NB: .5 dBm */ 2292177595Sweongyo if (rssi > 100) 2293177595Sweongyo rssi = 100; 2294177595Sweongyo 2295177595Sweongyo pktlen = hdrlen + (len - off); 2296177595Sweongyo /* 2297177595Sweongyo * NB: we know our frame is at least as large as 2298177595Sweongyo * IEEE80211_MIN_LEN because there is a 4-address frame at 2299177595Sweongyo * the front. Hence there's no need to vet the packet length. 2300177595Sweongyo * If the frame in fact is too small it should be discarded 2301177595Sweongyo * at the net80211 layer. 2302177595Sweongyo */ 2303177595Sweongyo 2304177595Sweongyo /* XXX don't need mbuf, just dma buffer */ 2305177595Sweongyo mnew = malo_getrxmbuf(sc, bf); 2306177595Sweongyo if (mnew == NULL) { 2307177595Sweongyo ifp->if_ierrors++; 2308177595Sweongyo goto rx_next; 2309177595Sweongyo } 2310177595Sweongyo 2311177595Sweongyo /* 2312177595Sweongyo * Attach the dma buffer to the mbuf; malo_rxbuf_init will 2313177595Sweongyo * re-setup the rx descriptor using the replacement dma 2314177595Sweongyo * buffer we just installed above. 2315177595Sweongyo */ 2316177595Sweongyo bf->bf_m = mnew; 2317177595Sweongyo m->m_data += off - hdrlen; 2318177595Sweongyo m->m_pkthdr.len = m->m_len = pktlen; 2319177595Sweongyo m->m_pkthdr.rcvif = ifp; 2320177595Sweongyo 2321177595Sweongyo /* 2322177595Sweongyo * Piece 802.11 header together. 2323177595Sweongyo */ 2324177595Sweongyo wh = mtod(m, struct ieee80211_qosframe *); 2325177595Sweongyo /* NB: don't need to do this sometimes but ... */ 2326177595Sweongyo /* XXX special case so we can memcpy after m_devget? */ 2327177595Sweongyo ovbcopy(data + sizeof(uint16_t), wh, hdrlen); 2328177595Sweongyo if (IEEE80211_QOS_HAS_SEQ(wh)) { 2329177595Sweongyo if (IEEE80211_DIR_DSTODS(wh)) { 2330177595Sweongyo wh4 = mtod(m, 2331177595Sweongyo struct ieee80211_qosframe_addr4*); 2332177595Sweongyo *(uint16_t *)wh4->i_qos = ds->qosctrl; 2333177595Sweongyo } else { 2334177595Sweongyo *(uint16_t *)wh->i_qos = ds->qosctrl; 2335177595Sweongyo } 2336177595Sweongyo } 2337177595Sweongyo if (sc->malo_drvbpf != NULL) { 2338177595Sweongyo sc->malo_rx_th.wr_flags = 0; 2339177595Sweongyo sc->malo_rx_th.wr_rate = ds->rate; 2340177595Sweongyo sc->malo_rx_th.wr_antsignal = rssi; 2341177595Sweongyo sc->malo_rx_th.wr_antnoise = ds->nf; 2342177595Sweongyo 2343177595Sweongyo bpf_mtap2(sc->malo_drvbpf, 2344177595Sweongyo &sc->malo_rx_th, sc->malo_rx_th_len, m); 2345177595Sweongyo } 2346177595Sweongyo#ifdef MALO_DEBUG 2347177595Sweongyo if (IFF_DUMPPKTS_RECV(sc, wh)) { 2348177595Sweongyo ieee80211_dump_pkt(ic, mtod(m, caddr_t), 2349177595Sweongyo len, ds->rate, rssi); 2350177595Sweongyo } 2351177595Sweongyo#endif 2352177595Sweongyo ifp->if_ipackets++; 2353177595Sweongyo 2354177595Sweongyo /* dispatch */ 2355177595Sweongyo ni = ieee80211_find_rxnode(ic, 2356177595Sweongyo (const struct ieee80211_frame_min *) wh); 2357177595Sweongyo (void) ieee80211_input(ic, m, ni, rssi, ds->nf, 0/*XXX*/); 2358177595Sweongyo ieee80211_free_node(ni); 2359177595Sweongyo 2360177595Sweongyorx_next: 2361177595Sweongyo /* NB: ignore ENOMEM so we process more descriptors */ 2362177595Sweongyo (void) malo_rxbuf_init(sc, bf); 2363177595Sweongyo bf = STAILQ_NEXT(bf, bf_list); 2364177595Sweongyo } 2365177595Sweongyo 2366177595Sweongyo malo_bar0_write4(sc, sc->malo_hwspecs.rxdesc_read, readptr); 2367177595Sweongyo sc->malo_rxnext = bf; 2368177595Sweongyo 2369177595Sweongyo if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 2370177595Sweongyo !IFQ_IS_EMPTY(&ifp->if_snd)) 2371177595Sweongyo malo_start(ifp); 2372177595Sweongyo#undef IEEE80211_DIR_DSTODS 2373177595Sweongyo} 2374177595Sweongyo 2375177595Sweongyostatic void 2376177595Sweongyomalo_stop(struct ifnet *ifp, int disable) 2377177595Sweongyo{ 2378177595Sweongyo struct malo_softc *sc = ifp->if_softc; 2379177595Sweongyo 2380177595Sweongyo MALO_LOCK(sc); 2381177595Sweongyo 2382177595Sweongyo malo_stop_locked(ifp, disable); 2383177595Sweongyo 2384177595Sweongyo MALO_UNLOCK(sc); 2385177595Sweongyo} 2386177595Sweongyo 2387177595Sweongyo/* 2388177595Sweongyo * Reclaim all tx queue resources. 2389177595Sweongyo */ 2390177595Sweongyostatic void 2391177595Sweongyomalo_tx_cleanup(struct malo_softc *sc) 2392177595Sweongyo{ 2393177595Sweongyo int i; 2394177595Sweongyo 2395177595Sweongyo for (i = 0; i < MALO_NUM_TX_QUEUES; i++) 2396177595Sweongyo malo_tx_cleanupq(sc, &sc->malo_txq[i]); 2397177595Sweongyo} 2398177595Sweongyo 2399177595Sweongyoint 2400177595Sweongyomalo_detach(struct malo_softc *sc) 2401177595Sweongyo{ 2402177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 2403177595Sweongyo 2404177595Sweongyo DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags %x\n", 2405177595Sweongyo __func__, ifp->if_flags); 2406177595Sweongyo 2407177595Sweongyo malo_stop(ifp, 1); 2408177595Sweongyo 2409177595Sweongyo if (sc->malo_tq != NULL) { 2410177595Sweongyo taskqueue_drain(sc->malo_tq, &sc->malo_rxtask); 2411177595Sweongyo taskqueue_drain(sc->malo_tq, &sc->malo_txtask); 2412177595Sweongyo taskqueue_free(sc->malo_tq); 2413177595Sweongyo sc->malo_tq = NULL; 2414177595Sweongyo } 2415177595Sweongyo 2416177595Sweongyo bpfdetach(ifp); 2417177595Sweongyo 2418177595Sweongyo /* 2419177595Sweongyo * NB: the order of these is important: 2420177595Sweongyo * o call the 802.11 layer before detaching the hal to 2421177595Sweongyo * insure callbacks into the driver to delete global 2422177595Sweongyo * key cache entries can be handled 2423177595Sweongyo * o reclaim the tx queue data structures after calling 2424177595Sweongyo * the 802.11 layer as we'll get called back to reclaim 2425177595Sweongyo * node state and potentially want to use them 2426177595Sweongyo * o to cleanup the tx queues the hal is called, so detach 2427177595Sweongyo * it last 2428177595Sweongyo * Other than that, it's straightforward... 2429177595Sweongyo */ 2430177595Sweongyo ieee80211_ifdetach(&sc->malo_ic); 2431177595Sweongyo malo_dma_cleanup(sc); 2432177595Sweongyo malo_tx_cleanup(sc); 2433177595Sweongyo malo_hal_detach(sc->malo_mh); 2434177595Sweongyo if_free(ifp); 2435177595Sweongyo 2436177595Sweongyo MALO_LOCK_DESTROY(sc); 2437177595Sweongyo 2438177595Sweongyo return 0; 2439177595Sweongyo} 2440177595Sweongyo 2441177595Sweongyovoid 2442177595Sweongyomalo_shutdown(struct malo_softc *sc) 2443177595Sweongyo{ 2444177595Sweongyo 2445177595Sweongyo malo_stop(sc->malo_ifp, 1); 2446177595Sweongyo} 2447177595Sweongyo 2448177595Sweongyovoid 2449177595Sweongyomalo_suspend(struct malo_softc *sc) 2450177595Sweongyo{ 2451177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 2452177595Sweongyo 2453177595Sweongyo DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags %x\n", 2454177595Sweongyo __func__, ifp->if_flags); 2455177595Sweongyo 2456177595Sweongyo malo_stop(ifp, 1); 2457177595Sweongyo} 2458177595Sweongyo 2459177595Sweongyovoid 2460177595Sweongyomalo_resume(struct malo_softc *sc) 2461177595Sweongyo{ 2462177595Sweongyo struct ifnet *ifp = sc->malo_ifp; 2463177595Sweongyo 2464177595Sweongyo DPRINTF(sc, MALO_DEBUG_ANY, "%s: if_flags %x\n", 2465177595Sweongyo __func__, ifp->if_flags); 2466177595Sweongyo 2467177595Sweongyo if (ifp->if_flags & IFF_UP) { 2468177595Sweongyo malo_init(sc); 2469177595Sweongyo if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2470177595Sweongyo malo_start(ifp); 2471177595Sweongyo } 2472177595Sweongyo} 2473