Home | History | Annotate | Line # | Download | only in ieee1394
if_fwip.c revision 1.22
      1  1.22  kiyohara /*	$NetBSD: if_fwip.c,v 1.22 2010/03/29 03:05:28 kiyohara Exp $	*/
      2   1.1  kiyohara /*-
      3   1.1  kiyohara  * Copyright (c) 2004
      4   1.1  kiyohara  *	Doug Rabson
      5   1.1  kiyohara  * Copyright (c) 2002-2003
      6   1.1  kiyohara  * 	Hidetoshi Shimokawa. All rights reserved.
      7  1.22  kiyohara  *
      8   1.1  kiyohara  * Redistribution and use in source and binary forms, with or without
      9   1.1  kiyohara  * modification, are permitted provided that the following conditions
     10   1.1  kiyohara  * are met:
     11   1.1  kiyohara  * 1. Redistributions of source code must retain the above copyright
     12   1.1  kiyohara  *    notice, this list of conditions and the following disclaimer.
     13   1.1  kiyohara  * 2. Redistributions in binary form must reproduce the above copyright
     14   1.1  kiyohara  *    notice, this list of conditions and the following disclaimer in the
     15   1.1  kiyohara  *    documentation and/or other materials provided with the distribution.
     16   1.1  kiyohara  * 3. All advertising materials mentioning features or use of this software
     17   1.1  kiyohara  *    must display the following acknowledgement:
     18   1.1  kiyohara  *
     19   1.1  kiyohara  *	This product includes software developed by Hidetoshi Shimokawa.
     20   1.1  kiyohara  *
     21   1.1  kiyohara  * 4. Neither the name of the author nor the names of its contributors
     22   1.1  kiyohara  *    may be used to endorse or promote products derived from this software
     23   1.1  kiyohara  *    without specific prior written permission.
     24  1.22  kiyohara  *
     25   1.1  kiyohara  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26   1.1  kiyohara  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27   1.1  kiyohara  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28   1.1  kiyohara  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29   1.1  kiyohara  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30   1.1  kiyohara  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31   1.1  kiyohara  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32   1.1  kiyohara  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33   1.1  kiyohara  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34   1.1  kiyohara  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35   1.1  kiyohara  * SUCH DAMAGE.
     36  1.22  kiyohara  *
     37  1.22  kiyohara  * $FreeBSD: src/sys/dev/firewire/if_fwip.c,v 1.18 2009/02/09 16:58:18 fjoe Exp $
     38   1.1  kiyohara  */
     39   1.1  kiyohara 
     40  1.12     lukem #include <sys/cdefs.h>
     41  1.22  kiyohara __KERNEL_RCSID(0, "$NetBSD: if_fwip.c,v 1.22 2010/03/29 03:05:28 kiyohara Exp $");
     42   1.1  kiyohara 
     43   1.1  kiyohara #include <sys/param.h>
     44   1.1  kiyohara #include <sys/bus.h>
     45   1.1  kiyohara #include <sys/device.h>
     46   1.1  kiyohara #include <sys/errno.h>
     47   1.1  kiyohara #include <sys/malloc.h>
     48   1.1  kiyohara #include <sys/mbuf.h>
     49  1.22  kiyohara #include <sys/mutex.h>
     50   1.1  kiyohara #include <sys/sysctl.h>
     51   1.1  kiyohara 
     52  1.22  kiyohara #include <net/bpf.h>
     53   1.1  kiyohara #include <net/if.h>
     54   1.1  kiyohara #include <net/if_ieee1394.h>
     55   1.8  kiyohara #include <net/if_types.h>
     56   1.1  kiyohara 
     57   1.1  kiyohara #include <dev/ieee1394/firewire.h>
     58   1.1  kiyohara #include <dev/ieee1394/firewirereg.h>
     59   1.1  kiyohara #include <dev/ieee1394/iec13213.h>
     60   1.1  kiyohara #include <dev/ieee1394/if_fwipvar.h>
     61   1.1  kiyohara 
     62   1.1  kiyohara /*
     63   1.1  kiyohara  * We really need a mechanism for allocating regions in the FIFO
     64   1.1  kiyohara  * address space. We pick a address in the OHCI controller's 'middle'
     65   1.1  kiyohara  * address space. This means that the controller will automatically
     66   1.1  kiyohara  * send responses for us, which is fine since we don't have any
     67   1.1  kiyohara  * important information to put in the response anyway.
     68   1.1  kiyohara  */
     69   1.1  kiyohara #define INET_FIFO	0xfffe00000000LL
     70   1.1  kiyohara 
     71  1.15  gmcgarry #define FWIPDEBUG	if (fwipdebug) aprint_debug_ifnet
     72   1.1  kiyohara #define TX_MAX_QUEUE	(FWMAXQUEUE - 1)
     73   1.1  kiyohara 
     74   1.1  kiyohara 
     75  1.22  kiyohara struct fw_hwaddr {
     76  1.22  kiyohara 	uint32_t		sender_unique_ID_hi;
     77  1.22  kiyohara 	uint32_t		sender_unique_ID_lo;
     78  1.22  kiyohara 	uint8_t			sender_max_rec;
     79  1.22  kiyohara 	uint8_t			sspd;
     80  1.22  kiyohara 	uint16_t		sender_unicast_FIFO_hi;
     81  1.22  kiyohara 	uint32_t		sender_unicast_FIFO_lo;
     82  1.22  kiyohara };
     83  1.22  kiyohara 
     84  1.22  kiyohara 
     85  1.22  kiyohara static int fwipmatch(device_t, cfdata_t, void *);
     86  1.22  kiyohara static void fwipattach(device_t, device_t, void *);
     87  1.22  kiyohara static int fwipdetach(device_t, int);
     88  1.22  kiyohara static int fwipactivate(device_t, enum devact);
     89  1.22  kiyohara 
     90   1.1  kiyohara /* network interface */
     91  1.22  kiyohara static void fwip_start(struct ifnet *);
     92  1.22  kiyohara static int fwip_ioctl(struct ifnet *, u_long, void *);
     93  1.10  kiyohara static int fwip_init(struct ifnet *);
     94  1.10  kiyohara static void fwip_stop(struct ifnet *, int);
     95   1.1  kiyohara 
     96  1.22  kiyohara static void fwip_post_busreset(void *);
     97  1.22  kiyohara static void fwip_output_callback(struct fw_xfer *);
     98  1.22  kiyohara static void fwip_async_output(struct fwip_softc *, struct ifnet *);
     99  1.22  kiyohara static void fwip_stream_input(struct fw_xferq *);
    100   1.1  kiyohara static void fwip_unicast_input(struct fw_xfer *);
    101   1.1  kiyohara 
    102   1.1  kiyohara static int fwipdebug = 0;
    103   1.1  kiyohara static int broadcast_channel = 0xc0 | 0x1f; /*  tag | channel(XXX) */
    104   1.1  kiyohara static int tx_speed = 2;
    105   1.1  kiyohara static int rx_queue_len = FWMAXQUEUE;
    106   1.1  kiyohara 
    107   1.1  kiyohara MALLOC_DEFINE(M_FWIP, "if_fwip", "IP over IEEE1394 interface");
    108   1.1  kiyohara /*
    109   1.1  kiyohara  * Setup sysctl(3) MIB, hw.fwip.*
    110   1.1  kiyohara  *
    111  1.17        ad  * TBD condition CTLFLAG_PERMANENT on being a module or not
    112   1.1  kiyohara  */
    113   1.1  kiyohara SYSCTL_SETUP(sysctl_fwip, "sysctl fwip(4) subtree setup")
    114   1.1  kiyohara {
    115   1.1  kiyohara 	int rc, fwip_node_num;
    116   1.1  kiyohara 	const struct sysctlnode *node;
    117   1.1  kiyohara 
    118   1.1  kiyohara 	if ((rc = sysctl_createv(clog, 0, NULL, NULL,
    119   1.1  kiyohara 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL,
    120   1.1  kiyohara 	    NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) {
    121   1.1  kiyohara 		goto err;
    122   1.1  kiyohara 	}
    123   1.1  kiyohara 
    124   1.1  kiyohara 	if ((rc = sysctl_createv(clog, 0, NULL, &node,
    125   1.1  kiyohara 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "fwip",
    126   1.1  kiyohara 	    SYSCTL_DESCR("fwip controls"),
    127   1.1  kiyohara 	    NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) {
    128   1.1  kiyohara 		goto err;
    129   1.1  kiyohara 	}
    130   1.1  kiyohara 	fwip_node_num = node->sysctl_num;
    131   1.1  kiyohara 
    132   1.1  kiyohara 	/* fwip RX queue length */
    133   1.1  kiyohara 	if ((rc = sysctl_createv(clog, 0, NULL, &node,
    134   1.1  kiyohara 	    CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT,
    135   1.1  kiyohara 	    "rx_queue_len", SYSCTL_DESCR("Length of the receive queue"),
    136   1.1  kiyohara 	    NULL, 0, &rx_queue_len,
    137   1.1  kiyohara 	    0, CTL_HW, fwip_node_num, CTL_CREATE, CTL_EOL)) != 0) {
    138   1.1  kiyohara 		goto err;
    139   1.1  kiyohara 	}
    140   1.1  kiyohara 
    141   1.1  kiyohara 	/* fwip RX queue length */
    142   1.1  kiyohara 	if ((rc = sysctl_createv(clog, 0, NULL, &node,
    143   1.1  kiyohara 	    CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT,
    144   1.1  kiyohara 	    "if_fwip_debug", SYSCTL_DESCR("fwip driver debug flag"),
    145   1.1  kiyohara 	    NULL, 0, &fwipdebug,
    146   1.1  kiyohara 	    0, CTL_HW, fwip_node_num, CTL_CREATE, CTL_EOL)) != 0) {
    147   1.1  kiyohara 		goto err;
    148   1.1  kiyohara 	}
    149   1.1  kiyohara 
    150   1.1  kiyohara 	return;
    151   1.1  kiyohara 
    152   1.1  kiyohara err:
    153  1.22  kiyohara 	aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
    154   1.1  kiyohara }
    155   1.1  kiyohara 
    156   1.1  kiyohara 
    157  1.22  kiyohara CFATTACH_DECL_NEW(fwip, sizeof(struct fwip_softc),
    158  1.22  kiyohara     fwipmatch, fwipattach, fwipdetach, fwipactivate);
    159   1.8  kiyohara 
    160   1.1  kiyohara 
    161   1.1  kiyohara static int
    162  1.19    cegger fwipmatch(device_t parent, cfdata_t cf, void *aux)
    163   1.1  kiyohara {
    164   1.1  kiyohara 	struct fw_attach_args *fwa = aux;
    165   1.1  kiyohara 
    166   1.1  kiyohara 	if (strcmp(fwa->name, "fwip") == 0)
    167  1.22  kiyohara 		return 1;
    168  1.22  kiyohara 	return 0;
    169   1.1  kiyohara }
    170   1.1  kiyohara 
    171  1.22  kiyohara static void
    172  1.22  kiyohara fwipattach(device_t parent, device_t self, void *aux)
    173   1.1  kiyohara {
    174  1.22  kiyohara 	struct fwip_softc *sc = device_private(self);
    175  1.22  kiyohara 	struct fw_attach_args *fwa = (struct fw_attach_args *)aux;
    176  1.22  kiyohara 	struct fw_hwaddr *hwaddr;
    177   1.1  kiyohara 	struct ifnet *ifp;
    178   1.1  kiyohara 
    179  1.22  kiyohara 	aprint_naive("\n");
    180  1.22  kiyohara 	aprint_normal(": IP over IEEE1394\n");
    181  1.22  kiyohara 
    182  1.22  kiyohara 	sc->sc_fd.dev = self;
    183  1.22  kiyohara 	sc->sc_eth.fwip_ifp = &sc->sc_eth.fwcom.fc_if;
    184  1.22  kiyohara 	hwaddr = (struct fw_hwaddr *)&sc->sc_eth.fwcom.ic_hwaddr;
    185   1.1  kiyohara 
    186  1.22  kiyohara 	ifp = sc->sc_eth.fwip_ifp;
    187   1.8  kiyohara 
    188  1.22  kiyohara 	mutex_init(&sc->sc_fwb.fwb_mtx, MUTEX_DEFAULT, IPL_NET);
    189  1.22  kiyohara 	mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_NET);
    190  1.21       mrg 
    191   1.1  kiyohara 	/* XXX */
    192  1.22  kiyohara 	sc->sc_dma_ch = -1;
    193   1.1  kiyohara 
    194  1.22  kiyohara 	sc->sc_fd.fc = fwa->fc;
    195   1.1  kiyohara 	if (tx_speed < 0)
    196  1.22  kiyohara 		tx_speed = sc->sc_fd.fc->speed;
    197   1.1  kiyohara 
    198  1.22  kiyohara 	sc->sc_fd.post_explore = NULL;
    199  1.22  kiyohara 	sc->sc_fd.post_busreset = fwip_post_busreset;
    200  1.22  kiyohara 	sc->sc_eth.fwip = sc;
    201   1.1  kiyohara 
    202   1.1  kiyohara 	/*
    203   1.1  kiyohara 	 * Encode our hardware the way that arp likes it.
    204   1.1  kiyohara 	 */
    205  1.22  kiyohara 	hwaddr->sender_unique_ID_hi = htonl(sc->sc_fd.fc->eui.hi);
    206  1.22  kiyohara 	hwaddr->sender_unique_ID_lo = htonl(sc->sc_fd.fc->eui.lo);
    207  1.22  kiyohara 	hwaddr->sender_max_rec = sc->sc_fd.fc->maxrec;
    208  1.22  kiyohara 	hwaddr->sspd = sc->sc_fd.fc->speed;
    209   1.1  kiyohara 	hwaddr->sender_unicast_FIFO_hi = htons((uint16_t)(INET_FIFO >> 32));
    210   1.1  kiyohara 	hwaddr->sender_unicast_FIFO_lo = htonl((uint32_t)INET_FIFO);
    211   1.1  kiyohara 
    212  1.22  kiyohara 	/* fill the rest and attach interface */
    213  1.22  kiyohara 	ifp->if_softc = &sc->sc_eth;
    214   1.1  kiyohara 
    215  1.22  kiyohara 	strlcpy(ifp->if_xname, device_xname(self), IFNAMSIZ);
    216  1.22  kiyohara 	ifp->if_start = fwip_start;
    217  1.22  kiyohara 	ifp->if_ioctl = fwip_ioctl;
    218  1.22  kiyohara 	ifp->if_init = fwip_init;
    219  1.22  kiyohara 	ifp->if_stop = fwip_stop;
    220  1.22  kiyohara 	ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST);
    221   1.1  kiyohara 	IFQ_SET_READY(&ifp->if_snd);
    222  1.22  kiyohara 	IFQ_SET_MAXLEN(&ifp->if_snd, TX_MAX_QUEUE);
    223   1.1  kiyohara 
    224  1.22  kiyohara 	if_attach(ifp);
    225  1.22  kiyohara 	ieee1394_ifattach(ifp, (const struct ieee1394_hwaddr *)hwaddr);
    226   1.1  kiyohara 
    227  1.11  jmcneill 	if (!pmf_device_register(self, NULL, NULL))
    228  1.11  jmcneill 		aprint_error_dev(self, "couldn't establish power handler\n");
    229  1.11  jmcneill 	else
    230  1.11  jmcneill 		pmf_class_network_register(self, ifp);
    231  1.11  jmcneill 
    232   1.1  kiyohara 	FWIPDEBUG(ifp, "interface created\n");
    233  1.22  kiyohara 	return;
    234   1.1  kiyohara }
    235   1.1  kiyohara 
    236  1.22  kiyohara static int
    237  1.22  kiyohara fwipdetach(device_t self, int flags)
    238   1.1  kiyohara {
    239  1.22  kiyohara 	struct fwip_softc *sc = device_private(self);
    240  1.22  kiyohara 	struct ifnet *ifp = sc->sc_eth.fwip_ifp;
    241   1.1  kiyohara 
    242  1.22  kiyohara 	fwip_stop(sc->sc_eth.fwip_ifp, 1);
    243  1.22  kiyohara 	ieee1394_ifdetach(ifp);
    244  1.22  kiyohara 	if_detach(ifp);
    245  1.22  kiyohara 	mutex_destroy(&sc->sc_mtx);
    246  1.22  kiyohara 	mutex_destroy(&sc->sc_fwb.fwb_mtx);
    247  1.22  kiyohara 	return 0;
    248  1.22  kiyohara }
    249   1.1  kiyohara 
    250  1.22  kiyohara static int
    251  1.22  kiyohara fwipactivate(device_t self, enum devact act)
    252  1.22  kiyohara {
    253  1.22  kiyohara 	struct fwip_softc *sc = device_private(self);
    254   1.1  kiyohara 
    255  1.22  kiyohara 	switch (act) {
    256  1.22  kiyohara 	case DVACT_DEACTIVATE:
    257  1.22  kiyohara 		if_deactivate(sc->sc_eth.fwip_ifp);
    258  1.22  kiyohara 		return 0;
    259  1.22  kiyohara 	default:
    260  1.22  kiyohara 		return EOPNOTSUPP;
    261  1.22  kiyohara 	}
    262  1.22  kiyohara }
    263  1.22  kiyohara 
    264  1.22  kiyohara static void
    265  1.22  kiyohara fwip_start(struct ifnet *ifp)
    266  1.22  kiyohara {
    267  1.22  kiyohara 	struct fwip_softc *sc = ((struct fwip_eth_softc *)ifp->if_softc)->fwip;
    268  1.22  kiyohara 
    269  1.22  kiyohara 	FWIPDEBUG(ifp, "starting\n");
    270   1.1  kiyohara 
    271  1.22  kiyohara 	if (sc->sc_dma_ch < 0) {
    272  1.22  kiyohara 		struct mbuf *m = NULL;
    273   1.1  kiyohara 
    274  1.22  kiyohara 		FWIPDEBUG(ifp, "not ready\n");
    275   1.1  kiyohara 
    276  1.22  kiyohara 		do {
    277  1.22  kiyohara 			IF_DEQUEUE(&ifp->if_snd, m);
    278  1.22  kiyohara 			if (m != NULL)
    279  1.22  kiyohara 				m_freem(m);
    280  1.22  kiyohara 			ifp->if_oerrors++;
    281  1.22  kiyohara 		} while (m != NULL);
    282   1.1  kiyohara 
    283  1.22  kiyohara 		return;
    284   1.1  kiyohara 	}
    285   1.1  kiyohara 
    286  1.22  kiyohara 	ifp->if_flags |= IFF_OACTIVE;
    287  1.22  kiyohara 
    288  1.22  kiyohara 	if (ifp->if_snd.ifq_len != 0)
    289  1.22  kiyohara 		fwip_async_output(sc, ifp);
    290  1.22  kiyohara 
    291  1.22  kiyohara 	ifp->if_flags &= ~IFF_OACTIVE;
    292   1.1  kiyohara }
    293   1.1  kiyohara 
    294  1.22  kiyohara static int
    295  1.22  kiyohara fwip_ioctl(struct ifnet *ifp, u_long cmd, void *data)
    296   1.1  kiyohara {
    297  1.22  kiyohara 	int s, error = 0;
    298   1.1  kiyohara 
    299  1.22  kiyohara 	s = splnet();
    300   1.8  kiyohara 
    301  1.22  kiyohara 	switch (cmd) {
    302  1.22  kiyohara 	case SIOCSIFFLAGS:
    303  1.22  kiyohara 		if ((error = ifioctl_common(ifp, cmd, data)) != 0)
    304  1.22  kiyohara 			break;
    305  1.22  kiyohara 		switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) {
    306  1.22  kiyohara 		case IFF_RUNNING:
    307  1.22  kiyohara 			fwip_stop(ifp, 0);
    308  1.22  kiyohara 			break;
    309  1.22  kiyohara 		case IFF_UP:
    310  1.22  kiyohara 			fwip_init(ifp);
    311  1.22  kiyohara 			break;
    312  1.22  kiyohara 		default:
    313  1.22  kiyohara 			break;
    314  1.22  kiyohara 		}
    315  1.22  kiyohara 		break;
    316   1.8  kiyohara 
    317  1.22  kiyohara 	case SIOCADDMULTI:
    318  1.22  kiyohara 	case SIOCDELMULTI:
    319  1.22  kiyohara 		break;
    320   1.1  kiyohara 
    321  1.22  kiyohara 	default:
    322  1.22  kiyohara 		error = ieee1394_ioctl(ifp, cmd, data);
    323  1.22  kiyohara 		if (error == ENETRESET)
    324  1.22  kiyohara 			error = 0;
    325  1.22  kiyohara 		break;
    326  1.22  kiyohara 	}
    327   1.1  kiyohara 
    328   1.1  kiyohara 	splx(s);
    329   1.1  kiyohara 
    330  1.22  kiyohara 	return error;
    331   1.1  kiyohara }
    332   1.1  kiyohara 
    333  1.22  kiyohara static int
    334  1.22  kiyohara fwip_init(struct ifnet *ifp)
    335   1.1  kiyohara {
    336  1.22  kiyohara 	struct fwip_softc *sc = ((struct fwip_eth_softc *)ifp->if_softc)->fwip;
    337   1.1  kiyohara 	struct firewire_comm *fc;
    338   1.1  kiyohara 	struct fw_xferq *xferq;
    339   1.1  kiyohara 	struct fw_xfer *xfer;
    340   1.1  kiyohara 	struct mbuf *m;
    341   1.1  kiyohara 	int i;
    342   1.1  kiyohara 
    343   1.1  kiyohara 	FWIPDEBUG(ifp, "initializing\n");
    344   1.1  kiyohara 
    345  1.22  kiyohara 	fc = sc->sc_fd.fc;
    346  1.22  kiyohara 	if (sc->sc_dma_ch < 0) {
    347  1.22  kiyohara 		sc->sc_dma_ch = fw_open_isodma(fc, /* tx */0);
    348  1.22  kiyohara 		if (sc->sc_dma_ch < 0)
    349  1.22  kiyohara 			return ENXIO;
    350  1.22  kiyohara 		xferq = fc->ir[sc->sc_dma_ch];
    351  1.10  kiyohara 		xferq->flag |=
    352  1.10  kiyohara 		    FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_STREAM;
    353   1.1  kiyohara 		xferq->flag &= ~0xff;
    354   1.1  kiyohara 		xferq->flag |= broadcast_channel & 0xff;
    355   1.1  kiyohara 		/* register fwip_input handler */
    356  1.22  kiyohara 		xferq->sc = (void *) sc;
    357   1.1  kiyohara 		xferq->hand = fwip_stream_input;
    358   1.1  kiyohara 		xferq->bnchunk = rx_queue_len;
    359   1.1  kiyohara 		xferq->bnpacket = 1;
    360   1.1  kiyohara 		xferq->psize = MCLBYTES;
    361   1.1  kiyohara 		xferq->queued = 0;
    362   1.1  kiyohara 		xferq->buf = NULL;
    363   1.1  kiyohara 		xferq->bulkxfer = (struct fw_bulkxfer *) malloc(
    364   1.1  kiyohara 			sizeof(struct fw_bulkxfer) * xferq->bnchunk,
    365   1.1  kiyohara 							M_FWIP, M_WAITOK);
    366   1.1  kiyohara 		if (xferq->bulkxfer == NULL) {
    367  1.22  kiyohara 			aprint_error_ifnet(ifp, "if_fwip: malloc failed\n");
    368  1.22  kiyohara 			return ENOMEM;
    369   1.1  kiyohara 		}
    370   1.1  kiyohara 		STAILQ_INIT(&xferq->stvalid);
    371   1.1  kiyohara 		STAILQ_INIT(&xferq->stfree);
    372   1.1  kiyohara 		STAILQ_INIT(&xferq->stdma);
    373   1.1  kiyohara 		xferq->stproc = NULL;
    374  1.22  kiyohara 		for (i = 0; i < xferq->bnchunk; i++) {
    375  1.22  kiyohara 			m = m_getcl(M_WAITOK, MT_DATA, M_PKTHDR);
    376   1.1  kiyohara 			xferq->bulkxfer[i].mbuf = m;
    377   1.1  kiyohara 			if (m != NULL) {
    378   1.1  kiyohara 				m->m_len = m->m_pkthdr.len = m->m_ext.ext_size;
    379   1.1  kiyohara 				STAILQ_INSERT_TAIL(&xferq->stfree,
    380   1.1  kiyohara 						&xferq->bulkxfer[i], link);
    381   1.1  kiyohara 			} else
    382  1.22  kiyohara 				aprint_error_ifnet(ifp,
    383  1.22  kiyohara 				    "fwip_as_input: m_getcl failed\n");
    384   1.1  kiyohara 		}
    385   1.1  kiyohara 
    386  1.22  kiyohara 		sc->sc_fwb.start = INET_FIFO;
    387  1.22  kiyohara 		sc->sc_fwb.end = INET_FIFO + 16384; /* S3200 packet size */
    388   1.1  kiyohara 
    389   1.1  kiyohara 		/* pre-allocate xfer */
    390  1.22  kiyohara 		STAILQ_INIT(&sc->sc_fwb.xferlist);
    391  1.22  kiyohara 		for (i = 0; i < rx_queue_len; i++) {
    392   1.1  kiyohara 			xfer = fw_xfer_alloc(M_FWIP);
    393   1.1  kiyohara 			if (xfer == NULL)
    394   1.1  kiyohara 				break;
    395  1.22  kiyohara 			m = m_getcl(M_WAITOK, MT_DATA, M_PKTHDR);
    396   1.1  kiyohara 			xfer->recv.payload = mtod(m, uint32_t *);
    397   1.1  kiyohara 			xfer->recv.pay_len = MCLBYTES;
    398   1.1  kiyohara 			xfer->hand = fwip_unicast_input;
    399   1.1  kiyohara 			xfer->fc = fc;
    400  1.22  kiyohara 			xfer->sc = (void *) sc;
    401   1.1  kiyohara 			xfer->mbuf = m;
    402  1.22  kiyohara 			STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link);
    403   1.1  kiyohara 		}
    404  1.22  kiyohara 		fw_bindadd(fc, &sc->sc_fwb);
    405   1.1  kiyohara 
    406  1.22  kiyohara 		STAILQ_INIT(&sc->sc_xferlist);
    407   1.1  kiyohara 		for (i = 0; i < TX_MAX_QUEUE; i++) {
    408   1.1  kiyohara 			xfer = fw_xfer_alloc(M_FWIP);
    409   1.1  kiyohara 			if (xfer == NULL)
    410   1.1  kiyohara 				break;
    411   1.1  kiyohara 			xfer->send.spd = tx_speed;
    412  1.22  kiyohara 			xfer->fc = sc->sc_fd.fc;
    413  1.22  kiyohara 			xfer->sc = (void *)sc;
    414   1.1  kiyohara 			xfer->hand = fwip_output_callback;
    415  1.22  kiyohara 			STAILQ_INSERT_TAIL(&sc->sc_xferlist, xfer, link);
    416   1.1  kiyohara 		}
    417   1.1  kiyohara 	} else
    418  1.22  kiyohara 		xferq = fc->ir[sc->sc_dma_ch];
    419   1.1  kiyohara 
    420  1.22  kiyohara 	sc->sc_last_dest.hi = 0;
    421  1.22  kiyohara 	sc->sc_last_dest.lo = 0;
    422   1.1  kiyohara 
    423   1.1  kiyohara 	/* start dma */
    424   1.1  kiyohara 	if ((xferq->flag & FWXFERQ_RUNNING) == 0)
    425  1.22  kiyohara 		fc->irx_enable(fc, sc->sc_dma_ch);
    426   1.1  kiyohara 
    427   1.1  kiyohara 	ifp->if_flags |= IFF_RUNNING;
    428   1.1  kiyohara 	ifp->if_flags &= ~IFF_OACTIVE;
    429   1.1  kiyohara 
    430   1.1  kiyohara #if 0
    431   1.1  kiyohara 	/* attempt to start output */
    432   1.1  kiyohara 	fwip_start(ifp);
    433   1.1  kiyohara #endif
    434  1.22  kiyohara 	return 0;
    435   1.1  kiyohara }
    436   1.1  kiyohara 
    437  1.22  kiyohara static void
    438  1.22  kiyohara fwip_stop(struct ifnet *ifp, int disable)
    439   1.1  kiyohara {
    440  1.22  kiyohara 	struct fwip_softc *sc = ((struct fwip_eth_softc *)ifp->if_softc)->fwip;
    441  1.22  kiyohara 	struct firewire_comm *fc = sc->sc_fd.fc;
    442  1.22  kiyohara 	struct fw_xferq *xferq;
    443  1.22  kiyohara 	struct fw_xfer *xfer, *next;
    444  1.22  kiyohara 	int i;
    445  1.22  kiyohara 
    446  1.22  kiyohara 	if (sc->sc_dma_ch >= 0) {
    447  1.22  kiyohara 		xferq = fc->ir[sc->sc_dma_ch];
    448  1.22  kiyohara 
    449  1.22  kiyohara 		if (xferq->flag & FWXFERQ_RUNNING)
    450  1.22  kiyohara 			fc->irx_disable(fc, sc->sc_dma_ch);
    451  1.22  kiyohara 		xferq->flag &=
    452  1.22  kiyohara 			~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM |
    453  1.22  kiyohara 			FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK);
    454  1.22  kiyohara 		xferq->hand = NULL;
    455  1.22  kiyohara 
    456  1.22  kiyohara 		for (i = 0; i < xferq->bnchunk; i++)
    457  1.22  kiyohara 			m_freem(xferq->bulkxfer[i].mbuf);
    458  1.22  kiyohara 		free(xferq->bulkxfer, M_FWIP);
    459   1.1  kiyohara 
    460  1.22  kiyohara 		fw_bindremove(fc, &sc->sc_fwb);
    461  1.22  kiyohara 		for (xfer = STAILQ_FIRST(&sc->sc_fwb.xferlist); xfer != NULL;
    462  1.22  kiyohara 		    xfer = next) {
    463  1.22  kiyohara 			next = STAILQ_NEXT(xfer, link);
    464  1.22  kiyohara 			fw_xfer_free(xfer);
    465   1.1  kiyohara 		}
    466   1.8  kiyohara 
    467  1.22  kiyohara 		for (xfer = STAILQ_FIRST(&sc->sc_xferlist); xfer != NULL;
    468  1.22  kiyohara 		    xfer = next) {
    469  1.22  kiyohara 			next = STAILQ_NEXT(xfer, link);
    470  1.22  kiyohara 			fw_xfer_free(xfer);
    471   1.8  kiyohara 		}
    472   1.1  kiyohara 
    473  1.22  kiyohara 		xferq->bulkxfer = NULL;
    474  1.22  kiyohara 		sc->sc_dma_ch = -1;
    475   1.1  kiyohara 	}
    476   1.1  kiyohara 
    477  1.22  kiyohara 	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
    478   1.1  kiyohara }
    479   1.1  kiyohara 
    480   1.1  kiyohara static void
    481   1.1  kiyohara fwip_post_busreset(void *arg)
    482   1.1  kiyohara {
    483  1.22  kiyohara 	struct fwip_softc *sc = arg;
    484   1.1  kiyohara 	struct crom_src *src;
    485   1.1  kiyohara 	struct crom_chunk *root;
    486   1.1  kiyohara 
    487  1.22  kiyohara 	src = sc->sc_fd.fc->crom_src;
    488  1.22  kiyohara 	root = sc->sc_fd.fc->crom_root;
    489   1.1  kiyohara 
    490   1.1  kiyohara 	/* RFC2734 IPv4 over IEEE1394 */
    491  1.22  kiyohara 	memset(&sc->sc_unit4, 0, sizeof(struct crom_chunk));
    492  1.22  kiyohara 	crom_add_chunk(src, root, &sc->sc_unit4, CROM_UDIR);
    493  1.22  kiyohara 	crom_add_entry(&sc->sc_unit4, CSRKEY_SPEC, CSRVAL_IETF);
    494  1.22  kiyohara 	crom_add_simple_text(src, &sc->sc_unit4, &sc->sc_spec4, "IANA");
    495  1.22  kiyohara 	crom_add_entry(&sc->sc_unit4, CSRKEY_VER, 1);
    496  1.22  kiyohara 	crom_add_simple_text(src, &sc->sc_unit4, &sc->sc_ver4, "IPv4");
    497   1.1  kiyohara 
    498   1.1  kiyohara 	/* RFC3146 IPv6 over IEEE1394 */
    499  1.22  kiyohara 	memset(&sc->sc_unit6, 0, sizeof(struct crom_chunk));
    500  1.22  kiyohara 	crom_add_chunk(src, root, &sc->sc_unit6, CROM_UDIR);
    501  1.22  kiyohara 	crom_add_entry(&sc->sc_unit6, CSRKEY_SPEC, CSRVAL_IETF);
    502  1.22  kiyohara 	crom_add_simple_text(src, &sc->sc_unit6, &sc->sc_spec6, "IANA");
    503  1.22  kiyohara 	crom_add_entry(&sc->sc_unit6, CSRKEY_VER, 2);
    504  1.22  kiyohara 	crom_add_simple_text(src, &sc->sc_unit6, &sc->sc_ver6, "IPv6");
    505  1.22  kiyohara 
    506  1.22  kiyohara 	sc->sc_last_dest.hi = 0;
    507  1.22  kiyohara 	sc->sc_last_dest.lo = 0;
    508  1.22  kiyohara 	ieee1394_drain(sc->sc_eth.fwip_ifp);
    509   1.1  kiyohara }
    510   1.1  kiyohara 
    511   1.1  kiyohara static void
    512   1.1  kiyohara fwip_output_callback(struct fw_xfer *xfer)
    513   1.1  kiyohara {
    514  1.22  kiyohara 	struct fwip_softc *sc = (struct fwip_softc *)xfer->sc;
    515   1.1  kiyohara 	struct ifnet *ifp;
    516   1.1  kiyohara 
    517  1.22  kiyohara 	ifp = sc->sc_eth.fwip_ifp;
    518   1.1  kiyohara 	/* XXX error check */
    519   1.1  kiyohara 	FWIPDEBUG(ifp, "resp = %d\n", xfer->resp);
    520   1.1  kiyohara 	if (xfer->resp != 0)
    521  1.22  kiyohara 		ifp->if_oerrors++;
    522  1.22  kiyohara 
    523   1.1  kiyohara 	m_freem(xfer->mbuf);
    524   1.1  kiyohara 	fw_xfer_unload(xfer);
    525   1.1  kiyohara 
    526  1.22  kiyohara 	mutex_enter(&sc->sc_mtx);
    527  1.22  kiyohara 	STAILQ_INSERT_TAIL(&sc->sc_xferlist, xfer, link);
    528  1.22  kiyohara 	mutex_exit(&sc->sc_mtx);
    529   1.1  kiyohara 
    530   1.1  kiyohara 	/* for queue full */
    531  1.22  kiyohara 	if (ifp->if_snd.ifq_head != NULL)
    532   1.1  kiyohara 		fwip_start(ifp);
    533   1.1  kiyohara }
    534   1.1  kiyohara 
    535   1.1  kiyohara /* Async. stream output */
    536   1.1  kiyohara static void
    537  1.22  kiyohara fwip_async_output(struct fwip_softc *sc, struct ifnet *ifp)
    538   1.1  kiyohara {
    539  1.22  kiyohara 	struct firewire_comm *fc = sc->sc_fd.fc;
    540   1.1  kiyohara 	struct mbuf *m;
    541   1.1  kiyohara 	struct m_tag *mtag;
    542   1.1  kiyohara 	struct fw_hwaddr *destfw;
    543   1.1  kiyohara 	struct fw_xfer *xfer;
    544   1.1  kiyohara 	struct fw_xferq *xferq;
    545   1.1  kiyohara 	struct fw_pkt *fp;
    546   1.1  kiyohara 	uint16_t nodeid;
    547   1.1  kiyohara 	int error;
    548   1.1  kiyohara 	int i = 0;
    549   1.1  kiyohara 
    550   1.1  kiyohara 	xfer = NULL;
    551  1.10  kiyohara 	xferq = fc->atq;
    552  1.10  kiyohara 	while ((xferq->queued < xferq->maxq - 1) &&
    553  1.10  kiyohara 	    (ifp->if_snd.ifq_head != NULL)) {
    554  1.22  kiyohara 		mutex_enter(&sc->sc_mtx);
    555  1.22  kiyohara 		if (STAILQ_EMPTY(&sc->sc_xferlist)) {
    556  1.22  kiyohara 			mutex_exit(&sc->sc_mtx);
    557  1.10  kiyohara #if 0
    558  1.22  kiyohara 			aprint_normal("if_fwip: lack of xfer\n");
    559  1.10  kiyohara #endif
    560  1.10  kiyohara 			break;
    561   1.1  kiyohara 		}
    562   1.1  kiyohara 		IF_DEQUEUE(&ifp->if_snd, m);
    563  1.10  kiyohara 		if (m == NULL) {
    564  1.22  kiyohara 			mutex_exit(&sc->sc_mtx);
    565   1.1  kiyohara 			break;
    566  1.10  kiyohara 		}
    567  1.22  kiyohara 		xfer = STAILQ_FIRST(&sc->sc_xferlist);
    568  1.22  kiyohara 		STAILQ_REMOVE_HEAD(&sc->sc_xferlist, link);
    569  1.22  kiyohara 		mutex_exit(&sc->sc_mtx);
    570   1.1  kiyohara 
    571   1.1  kiyohara 		/*
    572   1.1  kiyohara 		 * Dig out the link-level address which
    573   1.1  kiyohara 		 * firewire_output got via arp or neighbour
    574   1.1  kiyohara 		 * discovery. If we don't have a link-level address,
    575   1.1  kiyohara 		 * just stick the thing on the broadcast channel.
    576   1.1  kiyohara 		 */
    577  1.22  kiyohara 		mtag = m_tag_find(m, MTAG_FIREWIRE_HWADDR, 0);
    578   1.1  kiyohara 		if (mtag == NULL)
    579   1.1  kiyohara 			destfw = 0;
    580   1.1  kiyohara 		else
    581   1.1  kiyohara 			destfw = (struct fw_hwaddr *) (mtag + 1);
    582   1.1  kiyohara 
    583   1.1  kiyohara 		/*
    584   1.1  kiyohara 		 * Put the mbuf in the xfer early in case we hit an
    585   1.1  kiyohara 		 * error case below - fwip_output_callback will free
    586   1.1  kiyohara 		 * the mbuf.
    587   1.1  kiyohara 		 */
    588   1.1  kiyohara 		xfer->mbuf = m;
    589   1.1  kiyohara 
    590   1.1  kiyohara 		/*
    591   1.1  kiyohara 		 * We use the arp result (if any) to add a suitable firewire
    592   1.1  kiyohara 		 * packet header before handing off to the bus.
    593   1.1  kiyohara 		 */
    594   1.1  kiyohara 		fp = &xfer->send.hdr;
    595   1.1  kiyohara 		nodeid = FWLOCALBUS | fc->nodeid;
    596   1.1  kiyohara 		if ((m->m_flags & M_BCAST) || !destfw) {
    597   1.1  kiyohara 			/*
    598   1.1  kiyohara 			 * Broadcast packets are sent as GASP packets with
    599   1.1  kiyohara 			 * specifier ID 0x00005e, version 1 on the broadcast
    600   1.1  kiyohara 			 * channel. To be conservative, we send at the
    601   1.1  kiyohara 			 * slowest possible speed.
    602   1.1  kiyohara 			 */
    603   1.1  kiyohara 			uint32_t *p;
    604   1.1  kiyohara 
    605  1.22  kiyohara 			M_PREPEND(m, 2 * sizeof(uint32_t), M_DONTWAIT);
    606   1.1  kiyohara 			p = mtod(m, uint32_t *);
    607   1.1  kiyohara 			fp->mode.stream.len = m->m_pkthdr.len;
    608   1.1  kiyohara 			fp->mode.stream.chtag = broadcast_channel;
    609   1.1  kiyohara 			fp->mode.stream.tcode = FWTCODE_STREAM;
    610   1.1  kiyohara 			fp->mode.stream.sy = 0;
    611   1.1  kiyohara 			xfer->send.spd = 0;
    612   1.1  kiyohara 			p[0] = htonl(nodeid << 16);
    613   1.1  kiyohara 			p[1] = htonl((0x5e << 24) | 1);
    614   1.1  kiyohara 		} else {
    615   1.1  kiyohara 			/*
    616   1.1  kiyohara 			 * Unicast packets are sent as block writes to the
    617   1.1  kiyohara 			 * target's unicast fifo address. If we can't
    618   1.1  kiyohara 			 * find the node address, we just give up. We
    619   1.1  kiyohara 			 * could broadcast it but that might overflow
    620   1.1  kiyohara 			 * the packet size limitations due to the
    621   1.1  kiyohara 			 * extra GASP header. Note: the hardware
    622   1.1  kiyohara 			 * address is stored in network byte order to
    623   1.1  kiyohara 			 * make life easier for ARP.
    624   1.1  kiyohara 			 */
    625   1.1  kiyohara 			struct fw_device *fd;
    626   1.1  kiyohara 			struct fw_eui64 eui;
    627   1.1  kiyohara 
    628   1.1  kiyohara 			eui.hi = ntohl(destfw->sender_unique_ID_hi);
    629   1.1  kiyohara 			eui.lo = ntohl(destfw->sender_unique_ID_lo);
    630  1.22  kiyohara 			if (sc->sc_last_dest.hi != eui.hi ||
    631  1.22  kiyohara 			    sc->sc_last_dest.lo != eui.lo) {
    632   1.1  kiyohara 				fd = fw_noderesolve_eui64(fc, &eui);
    633   1.1  kiyohara 				if (!fd) {
    634   1.1  kiyohara 					/* error */
    635  1.22  kiyohara 					ifp->if_oerrors++;
    636   1.1  kiyohara 					/* XXX set error code */
    637   1.1  kiyohara 					fwip_output_callback(xfer);
    638   1.1  kiyohara 					continue;
    639   1.1  kiyohara 
    640   1.1  kiyohara 				}
    641  1.22  kiyohara 				sc->sc_last_hdr.mode.wreqb.dst =
    642  1.22  kiyohara 				    FWLOCALBUS | fd->dst;
    643  1.22  kiyohara 				sc->sc_last_hdr.mode.wreqb.tlrt = 0;
    644  1.22  kiyohara 				sc->sc_last_hdr.mode.wreqb.tcode =
    645  1.22  kiyohara 				    FWTCODE_WREQB;
    646  1.22  kiyohara 				sc->sc_last_hdr.mode.wreqb.pri = 0;
    647  1.22  kiyohara 				sc->sc_last_hdr.mode.wreqb.src = nodeid;
    648  1.22  kiyohara 				sc->sc_last_hdr.mode.wreqb.dest_hi =
    649   1.1  kiyohara 					ntohs(destfw->sender_unicast_FIFO_hi);
    650  1.22  kiyohara 				sc->sc_last_hdr.mode.wreqb.dest_lo =
    651   1.1  kiyohara 					ntohl(destfw->sender_unicast_FIFO_lo);
    652  1.22  kiyohara 				sc->sc_last_hdr.mode.wreqb.extcode = 0;
    653  1.22  kiyohara 				sc->sc_last_dest = eui;
    654   1.1  kiyohara 			}
    655   1.1  kiyohara 
    656  1.22  kiyohara 			fp->mode.wreqb = sc->sc_last_hdr.mode.wreqb;
    657   1.1  kiyohara 			fp->mode.wreqb.len = m->m_pkthdr.len;
    658   1.1  kiyohara 			xfer->send.spd = min(destfw->sspd, fc->speed);
    659   1.1  kiyohara 		}
    660   1.1  kiyohara 
    661   1.1  kiyohara 		xfer->send.pay_len = m->m_pkthdr.len;
    662   1.1  kiyohara 
    663   1.1  kiyohara 		error = fw_asyreq(fc, -1, xfer);
    664   1.1  kiyohara 		if (error == EAGAIN) {
    665   1.1  kiyohara 			/*
    666   1.1  kiyohara 			 * We ran out of tlabels - requeue the packet
    667   1.1  kiyohara 			 * for later transmission.
    668   1.1  kiyohara 			 */
    669   1.1  kiyohara 			xfer->mbuf = 0;
    670  1.22  kiyohara 			mutex_enter(&sc->sc_mtx);
    671  1.22  kiyohara 			STAILQ_INSERT_TAIL(&sc->sc_xferlist, xfer, link);
    672  1.22  kiyohara 			mutex_exit(&sc->sc_mtx);
    673   1.1  kiyohara 			IF_PREPEND(&ifp->if_snd, m);
    674   1.1  kiyohara 			break;
    675   1.1  kiyohara 		}
    676   1.1  kiyohara 		if (error) {
    677   1.1  kiyohara 			/* error */
    678  1.22  kiyohara 			ifp->if_oerrors++;
    679   1.1  kiyohara 			/* XXX set error code */
    680   1.1  kiyohara 			fwip_output_callback(xfer);
    681   1.1  kiyohara 			continue;
    682   1.1  kiyohara 		} else {
    683  1.22  kiyohara 			ifp->if_opackets++;
    684   1.1  kiyohara 			i++;
    685   1.1  kiyohara 		}
    686   1.1  kiyohara 	}
    687   1.1  kiyohara #if 0
    688   1.1  kiyohara 	if (i > 1)
    689  1.22  kiyohara 		aprint_normal("%d queued\n", i);
    690   1.1  kiyohara #endif
    691  1.10  kiyohara 	if (i > 0)
    692   1.1  kiyohara 		xferq->start(fc);
    693   1.1  kiyohara }
    694   1.1  kiyohara 
    695   1.1  kiyohara /* Async. stream output */
    696   1.1  kiyohara static void
    697   1.1  kiyohara fwip_stream_input(struct fw_xferq *xferq)
    698   1.1  kiyohara {
    699   1.1  kiyohara 	struct mbuf *m, *m0;
    700   1.1  kiyohara 	struct m_tag *mtag;
    701   1.1  kiyohara 	struct ifnet *ifp;
    702  1.22  kiyohara 	struct fwip_softc *sc;
    703   1.1  kiyohara 	struct fw_bulkxfer *sxfer;
    704   1.1  kiyohara 	struct fw_pkt *fp;
    705   1.1  kiyohara 	uint16_t src;
    706   1.1  kiyohara 	uint32_t *p;
    707   1.1  kiyohara 
    708  1.22  kiyohara 	sc = (struct fwip_softc *)xferq->sc;
    709  1.22  kiyohara 	ifp = sc->sc_eth.fwip_ifp;
    710   1.1  kiyohara 	while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) {
    711   1.1  kiyohara 		STAILQ_REMOVE_HEAD(&xferq->stvalid, link);
    712   1.1  kiyohara 		fp = mtod(sxfer->mbuf, struct fw_pkt *);
    713  1.22  kiyohara 		if (sc->sc_fd.fc->irx_post != NULL)
    714  1.22  kiyohara 			sc->sc_fd.fc->irx_post(sc->sc_fd.fc, fp->mode.ld);
    715   1.1  kiyohara 		m = sxfer->mbuf;
    716   1.1  kiyohara 
    717   1.1  kiyohara 		/* insert new rbuf */
    718   1.1  kiyohara 		sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
    719   1.1  kiyohara 		if (m0 != NULL) {
    720   1.1  kiyohara 			m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size;
    721   1.1  kiyohara 			STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link);
    722   1.1  kiyohara 		} else
    723  1.22  kiyohara 			aprint_error_ifnet(ifp,
    724  1.22  kiyohara 			    "fwip_as_input: m_getcl failed\n");
    725   1.1  kiyohara 
    726   1.1  kiyohara 		/*
    727   1.1  kiyohara 		 * We must have a GASP header - leave the
    728   1.1  kiyohara 		 * encapsulation sanity checks to the generic
    729   1.1  kiyohara 		 * code. Remeber that we also have the firewire async
    730   1.1  kiyohara 		 * stream header even though that isn't accounted for
    731   1.1  kiyohara 		 * in mode.stream.len.
    732   1.1  kiyohara 		 */
    733  1.22  kiyohara 		if (sxfer->resp != 0 ||
    734  1.22  kiyohara 		    fp->mode.stream.len < 2 * sizeof(uint32_t)) {
    735   1.1  kiyohara 			m_freem(m);
    736  1.22  kiyohara 			ifp->if_ierrors++;
    737   1.1  kiyohara 			continue;
    738   1.1  kiyohara 		}
    739   1.1  kiyohara 		m->m_len = m->m_pkthdr.len = fp->mode.stream.len
    740   1.1  kiyohara 			+ sizeof(fp->mode.stream);
    741   1.1  kiyohara 
    742   1.1  kiyohara 		/*
    743   1.1  kiyohara 		 * If we received the packet on the broadcast channel,
    744   1.1  kiyohara 		 * mark it as broadcast, otherwise we assume it must
    745   1.1  kiyohara 		 * be multicast.
    746   1.1  kiyohara 		 */
    747   1.1  kiyohara 		if (fp->mode.stream.chtag == broadcast_channel)
    748   1.1  kiyohara 			m->m_flags |= M_BCAST;
    749   1.1  kiyohara 		else
    750   1.1  kiyohara 			m->m_flags |= M_MCAST;
    751   1.1  kiyohara 
    752   1.1  kiyohara 		/*
    753   1.1  kiyohara 		 * Make sure we recognise the GASP specifier and
    754   1.1  kiyohara 		 * version.
    755   1.1  kiyohara 		 */
    756   1.1  kiyohara 		p = mtod(m, uint32_t *);
    757  1.22  kiyohara 		if ((((ntohl(p[1]) & 0xffff) << 8) | ntohl(p[2]) >> 24) !=
    758  1.22  kiyohara 								0x00005e ||
    759  1.22  kiyohara 		    (ntohl(p[2]) & 0xffffff) != 1) {
    760   1.1  kiyohara 			FWIPDEBUG(ifp, "Unrecognised GASP header %#08x %#08x\n",
    761   1.1  kiyohara 			    ntohl(p[1]), ntohl(p[2]));
    762   1.1  kiyohara 			m_freem(m);
    763  1.22  kiyohara 			ifp->if_ierrors++;
    764   1.1  kiyohara 			continue;
    765   1.1  kiyohara 		}
    766   1.1  kiyohara 
    767   1.1  kiyohara 		/*
    768   1.1  kiyohara 		 * Record the sender ID for possible BPF usage.
    769   1.1  kiyohara 		 */
    770   1.1  kiyohara 		src = ntohl(p[1]) >> 16;
    771  1.22  kiyohara 		if (ifp->if_bpf) {
    772  1.22  kiyohara 			mtag = m_tag_get(MTAG_FIREWIRE_SENDER_EUID,
    773  1.22  kiyohara 			    2 * sizeof(uint32_t), M_NOWAIT);
    774   1.1  kiyohara 			if (mtag) {
    775   1.1  kiyohara 				/* bpf wants it in network byte order */
    776   1.1  kiyohara 				struct fw_device *fd;
    777   1.1  kiyohara 				uint32_t *p2 = (uint32_t *) (mtag + 1);
    778  1.22  kiyohara 
    779  1.22  kiyohara 				fd = fw_noderesolve_nodeid(sc->sc_fd.fc,
    780   1.1  kiyohara 				    src & 0x3f);
    781   1.1  kiyohara 				if (fd) {
    782   1.1  kiyohara 					p2[0] = htonl(fd->eui.hi);
    783   1.1  kiyohara 					p2[1] = htonl(fd->eui.lo);
    784   1.1  kiyohara 				} else {
    785   1.1  kiyohara 					p2[0] = 0;
    786   1.1  kiyohara 					p2[1] = 0;
    787   1.1  kiyohara 				}
    788   1.1  kiyohara 				m_tag_prepend(m, mtag);
    789   1.1  kiyohara 			}
    790   1.1  kiyohara 		}
    791   1.1  kiyohara 
    792   1.1  kiyohara 		/*
    793   1.1  kiyohara 		 * Trim off the GASP header
    794   1.1  kiyohara 		 */
    795   1.1  kiyohara 		m_adj(m, 3*sizeof(uint32_t));
    796   1.1  kiyohara 		m->m_pkthdr.rcvif = ifp;
    797  1.22  kiyohara 		ieee1394_input(ifp, m, src);
    798  1.22  kiyohara 		ifp->if_ipackets++;
    799   1.1  kiyohara 	}
    800   1.1  kiyohara 	if (STAILQ_FIRST(&xferq->stfree) != NULL)
    801  1.22  kiyohara 		sc->sc_fd.fc->irx_enable(sc->sc_fd.fc, sc->sc_dma_ch);
    802   1.1  kiyohara }
    803   1.1  kiyohara 
    804   1.4     perry static inline void
    805  1.22  kiyohara fwip_unicast_input_recycle(struct fwip_softc *sc, struct fw_xfer *xfer)
    806   1.1  kiyohara {
    807   1.1  kiyohara 	struct mbuf *m;
    808   1.1  kiyohara 
    809   1.1  kiyohara 	/*
    810   1.1  kiyohara 	 * We have finished with a unicast xfer. Allocate a new
    811   1.1  kiyohara 	 * cluster and stick it on the back of the input queue.
    812   1.1  kiyohara 	 */
    813   1.2  kiyohara 	m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
    814   1.2  kiyohara 	if (m == NULL)
    815  1.22  kiyohara 		aprint_error_dev(sc->sc_fd.dev,
    816  1.22  kiyohara 		    "fwip_unicast_input_recycle: m_getcl failed\n");
    817   1.1  kiyohara 	xfer->recv.payload = mtod(m, uint32_t *);
    818   1.1  kiyohara 	xfer->recv.pay_len = MCLBYTES;
    819   1.1  kiyohara 	xfer->mbuf = m;
    820  1.22  kiyohara 	mutex_enter(&sc->sc_fwb.fwb_mtx);
    821  1.22  kiyohara 	STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link);
    822  1.22  kiyohara 	mutex_exit(&sc->sc_fwb.fwb_mtx);
    823   1.1  kiyohara }
    824   1.1  kiyohara 
    825   1.1  kiyohara static void
    826   1.1  kiyohara fwip_unicast_input(struct fw_xfer *xfer)
    827   1.1  kiyohara {
    828   1.1  kiyohara 	uint64_t address;
    829   1.1  kiyohara 	struct mbuf *m;
    830   1.1  kiyohara 	struct m_tag *mtag;
    831   1.1  kiyohara 	struct ifnet *ifp;
    832  1.22  kiyohara 	struct fwip_softc *sc;
    833   1.1  kiyohara 	struct fw_pkt *fp;
    834   1.1  kiyohara 	int rtcode;
    835   1.1  kiyohara 
    836  1.22  kiyohara 	sc = (struct fwip_softc *)xfer->sc;
    837  1.22  kiyohara 	ifp = sc->sc_eth.fwip_ifp;
    838   1.1  kiyohara 	m = xfer->mbuf;
    839   1.1  kiyohara 	xfer->mbuf = 0;
    840   1.1  kiyohara 	fp = &xfer->recv.hdr;
    841   1.1  kiyohara 
    842   1.1  kiyohara 	/*
    843   1.1  kiyohara 	 * Check the fifo address - we only accept addresses of
    844   1.1  kiyohara 	 * exactly INET_FIFO.
    845   1.1  kiyohara 	 */
    846   1.1  kiyohara 	address = ((uint64_t)fp->mode.wreqb.dest_hi << 32)
    847   1.1  kiyohara 		| fp->mode.wreqb.dest_lo;
    848   1.1  kiyohara 	if (fp->mode.wreqb.tcode != FWTCODE_WREQB) {
    849   1.1  kiyohara 		rtcode = FWRCODE_ER_TYPE;
    850   1.1  kiyohara 	} else if (address != INET_FIFO) {
    851   1.1  kiyohara 		rtcode = FWRCODE_ER_ADDR;
    852   1.1  kiyohara 	} else {
    853   1.1  kiyohara 		rtcode = FWRCODE_COMPLETE;
    854   1.1  kiyohara 	}
    855   1.1  kiyohara 
    856   1.1  kiyohara 	/*
    857   1.1  kiyohara 	 * Pick up a new mbuf and stick it on the back of the receive
    858   1.1  kiyohara 	 * queue.
    859   1.1  kiyohara 	 */
    860  1.22  kiyohara 	fwip_unicast_input_recycle(sc, xfer);
    861   1.1  kiyohara 
    862   1.1  kiyohara 	/*
    863   1.1  kiyohara 	 * If we've already rejected the packet, give up now.
    864   1.1  kiyohara 	 */
    865   1.1  kiyohara 	if (rtcode != FWRCODE_COMPLETE) {
    866   1.1  kiyohara 		m_freem(m);
    867  1.22  kiyohara 		ifp->if_ierrors++;
    868   1.1  kiyohara 		return;
    869   1.1  kiyohara 	}
    870   1.1  kiyohara 
    871  1.22  kiyohara 	if (ifp->if_bpf) {
    872   1.1  kiyohara 		/*
    873   1.1  kiyohara 		 * Record the sender ID for possible BPF usage.
    874   1.1  kiyohara 		 */
    875  1.22  kiyohara 		mtag = m_tag_get(MTAG_FIREWIRE_SENDER_EUID,
    876  1.22  kiyohara 		    2 * sizeof(uint32_t), M_NOWAIT);
    877   1.1  kiyohara 		if (mtag) {
    878   1.1  kiyohara 			/* bpf wants it in network byte order */
    879   1.1  kiyohara 			struct fw_device *fd;
    880   1.1  kiyohara 			uint32_t *p = (uint32_t *) (mtag + 1);
    881  1.22  kiyohara 
    882  1.22  kiyohara 			fd = fw_noderesolve_nodeid(sc->sc_fd.fc,
    883   1.1  kiyohara 			    fp->mode.wreqb.src & 0x3f);
    884   1.1  kiyohara 			if (fd) {
    885   1.1  kiyohara 				p[0] = htonl(fd->eui.hi);
    886   1.1  kiyohara 				p[1] = htonl(fd->eui.lo);
    887   1.1  kiyohara 			} else {
    888   1.1  kiyohara 				p[0] = 0;
    889   1.1  kiyohara 				p[1] = 0;
    890   1.1  kiyohara 			}
    891   1.1  kiyohara 			m_tag_prepend(m, mtag);
    892   1.1  kiyohara 		}
    893   1.1  kiyohara 	}
    894   1.1  kiyohara 
    895   1.1  kiyohara 	/*
    896   1.1  kiyohara 	 * Hand off to the generic encapsulation code. We don't use
    897   1.1  kiyohara 	 * ifp->if_input so that we can pass the source nodeid as an
    898   1.1  kiyohara 	 * argument to facilitate link-level fragment reassembly.
    899   1.1  kiyohara 	 */
    900   1.1  kiyohara 	m->m_len = m->m_pkthdr.len = fp->mode.wreqb.len;
    901   1.1  kiyohara 	m->m_pkthdr.rcvif = ifp;
    902  1.22  kiyohara 	ieee1394_input(ifp, m, fp->mode.wreqb.src);
    903  1.22  kiyohara 	ifp->if_ipackets++;
    904   1.1  kiyohara }
    905