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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/nfsclient/@/dev/patm/if_patm_ioctl.c |
/*-
* Copyright (c) 2003
* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Author: Hartmut Brandt <harti@freebsd.org>
*
* Driver for IDT77252 based cards like ProSum's.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/patm/if_patm_ioctl.c 148887 2005-08-09 10:20:02Z rwatson $");
#include "opt_inet.h"
#include "opt_natm.h"
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/errno.h>
#include <sys/conf.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/sysctl.h>
#include <sys/queue.h>
#include <sys/condvar.h>
#include <vm/uma.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_media.h>
#include <net/if_atm.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/if_atm.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <sys/mbpool.h>
#include <dev/utopia/utopia.h>
#include <dev/patm/idt77252reg.h>
#include <dev/patm/if_patmvar.h>
/*
* Open the VCC with the given parameters
*/
static int
patm_open_vcc(struct patm_softc *sc, struct atmio_openvcc *arg)
{
u_int cid;
struct patm_vcc *vcc;
int error = 0;
patm_debug(sc, VCC, "Open VCC: %u.%u flags=%#x", arg->param.vpi,
arg->param.vci, arg->param.flags);
if (!LEGAL_VPI(sc, arg->param.vpi) || !LEGAL_VCI(sc, arg->param.vci))
return (EINVAL);
if (arg->param.vci == 0 && (arg->param.vpi != 0 ||
!(arg->param.flags & ATMIO_FLAG_NOTX) ||
arg->param.aal != ATMIO_AAL_RAW))
return (EINVAL);
cid = PATM_CID(sc, arg->param.vpi, arg->param.vci);
if ((arg->param.flags & ATMIO_FLAG_NOTX) &&
(arg->param.flags & ATMIO_FLAG_NORX))
return (EINVAL);
if ((arg->param.traffic == ATMIO_TRAFFIC_ABR) &&
(arg->param.flags & (ATMIO_FLAG_NOTX | ATMIO_FLAG_NORX)))
return (EINVAL);
/* allocate vcc */
vcc = uma_zalloc(sc->vcc_zone, M_NOWAIT | M_ZERO);
if (vcc == NULL)
return (ENOMEM);
mtx_lock(&sc->mtx);
if (!(sc->ifp->if_drv_flags & IFF_DRV_RUNNING)) {
/* stopped while we have analyzed the arguments */
error = EIO;
goto done;
}
if (sc->vccs[cid] != NULL) {
/* ups, already open */
error = EBUSY;
goto done;
}
/* check some parameters */
vcc->cid = cid;
vcc->vcc = arg->param;
vcc->vflags = 0;
vcc->rxhand = arg->rxhand;
switch (vcc->vcc.aal) {
case ATMIO_AAL_0:
case ATMIO_AAL_34:
case ATMIO_AAL_5:
break;
case ATMIO_AAL_RAW:
if (arg->param.vci == 0 &&
!(arg->param.flags & ATMIO_FLAG_NOTX)) {
error = EINVAL;
goto done;
}
break;
default:
error = EINVAL;
goto done;
}
switch (vcc->vcc.traffic) {
case ATMIO_TRAFFIC_VBR:
case ATMIO_TRAFFIC_UBR:
case ATMIO_TRAFFIC_CBR:
case ATMIO_TRAFFIC_ABR:
break;
default:
error = EINVAL;
goto done;
}
/* initialize */
vcc->chain = NULL;
vcc->last = NULL;
vcc->ibytes = vcc->ipackets = 0;
vcc->obytes = vcc->opackets = 0;
/* ask the TX and RX sides */
patm_debug(sc, VCC, "Open VCC: asking Rx/Tx");
if (!(vcc->vcc.flags & ATMIO_FLAG_NOTX) &&
(error = patm_tx_vcc_can_open(sc, vcc)) != 0)
goto done;
if (!(vcc->vcc.flags & ATMIO_FLAG_NORX) &&
(error = patm_rx_vcc_can_open(sc, vcc)) != 0)
goto done;
/* ok - go ahead */
sc->vccs[cid] = vcc;
patm_load_vc(sc, vcc, 0);
/* don't free below */
vcc = NULL;
sc->vccs_open++;
/* done */
done:
mtx_unlock(&sc->mtx);
if (vcc != NULL)
uma_zfree(sc->vcc_zone, vcc);
return (error);
}
void
patm_load_vc(struct patm_softc *sc, struct patm_vcc *vcc, int reload)
{
patm_debug(sc, VCC, "Open VCC: opening");
if (!(vcc->vcc.flags & ATMIO_FLAG_NOTX))
patm_tx_vcc_open(sc, vcc);
if (!(vcc->vcc.flags & ATMIO_FLAG_NORX))
patm_rx_vcc_open(sc, vcc);
if (!reload) {
/* inform management about non-NG and NG-PVCs */
if (!(vcc->vcc.flags & ATMIO_FLAG_NG) ||
(vcc->vcc.flags & ATMIO_FLAG_PVC))
ATMEV_SEND_VCC_CHANGED(IFP2IFATM(sc->ifp), vcc->vcc.vpi,
vcc->vcc.vci, 1);
}
patm_debug(sc, VCC, "Open VCC: now open");
}
/*
* Try to close the given VCC
*/
static int
patm_close_vcc(struct patm_softc *sc, struct atmio_closevcc *arg)
{
u_int cid;
struct patm_vcc *vcc;
int error = 0;
patm_debug(sc, VCC, "Close VCC: %u.%u", arg->vpi, arg->vci);
if (!LEGAL_VPI(sc, arg->vpi) || !LEGAL_VCI(sc, arg->vci))
return (EINVAL);
cid = PATM_CID(sc, arg->vpi, arg->vci);
mtx_lock(&sc->mtx);
if (!(sc->ifp->if_drv_flags & IFF_DRV_RUNNING)) {
/* stopped while we have analyzed the arguments */
error = EIO;
goto done;
}
vcc = sc->vccs[cid];
if (vcc == NULL || !(vcc->vflags & PATM_VCC_OPEN)) {
error = ENOENT;
goto done;
}
if (vcc->vflags & PATM_VCC_TX_OPEN)
patm_tx_vcc_close(sc, vcc);
if (vcc->vflags & PATM_VCC_RX_OPEN)
patm_rx_vcc_close(sc, vcc);
if (vcc->vcc.flags & ATMIO_FLAG_ASYNC)
goto done;
while (vcc->vflags & (PATM_VCC_TX_CLOSING | PATM_VCC_RX_CLOSING)) {
cv_wait(&sc->vcc_cv, &sc->mtx);
if (!(sc->ifp->if_drv_flags & IFF_DRV_RUNNING)) {
/* ups, has been stopped */
error = EIO;
goto done;
}
}
if (!(vcc->vcc.flags & ATMIO_FLAG_NOTX))
patm_tx_vcc_closed(sc, vcc);
if (!(vcc->vcc.flags & ATMIO_FLAG_NORX))
patm_rx_vcc_closed(sc, vcc);
patm_vcc_closed(sc, vcc);
done:
mtx_unlock(&sc->mtx);
return (error);
}
/*
* VCC has been finally closed.
*/
void
patm_vcc_closed(struct patm_softc *sc, struct patm_vcc *vcc)
{
/* inform management about non-NG and NG-PVCs */
if (!(vcc->vcc.flags & ATMIO_FLAG_NG) ||
(vcc->vcc.flags & ATMIO_FLAG_PVC))
ATMEV_SEND_VCC_CHANGED(IFP2IFATM(sc->ifp), vcc->vcc.vpi,
vcc->vcc.vci, 0);
sc->vccs_open--;
sc->vccs[vcc->cid] = NULL;
uma_zfree(sc->vcc_zone, vcc);
}
int
patm_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct ifreq *ifr = (struct ifreq *)data;
struct ifaddr *ifa = (struct ifaddr *)data;
struct patm_softc *sc = ifp->if_softc;
int error = 0;
uint32_t cfg;
struct atmio_vcctable *vtab;
switch (cmd) {
case SIOCSIFADDR:
mtx_lock(&sc->mtx);
ifp->if_flags |= IFF_UP;
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
patm_initialize(sc);
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
case AF_INET6:
ifa->ifa_rtrequest = atm_rtrequest;
break;
#endif
default:
break;
}
mtx_unlock(&sc->mtx);
break;
case SIOCSIFFLAGS:
mtx_lock(&sc->mtx);
if (ifp->if_flags & IFF_UP) {
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
patm_initialize(sc);
}
} else {
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
patm_stop(sc);
}
}
mtx_unlock(&sc->mtx);
break;
case SIOCGIFMEDIA:
case SIOCSIFMEDIA:
error = ifmedia_ioctl(ifp, ifr, &sc->media, cmd);
/*
* We need to toggle unassigned/idle cells ourself because
* the 77252 generates null cells for spacing. When switching
* null cells of it gets the timing wrong.
*/
mtx_lock(&sc->mtx);
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
if (sc->utopia.state & UTP_ST_UNASS) {
if (!(sc->flags & PATM_UNASS)) {
cfg = patm_nor_read(sc, IDT_NOR_CFG);
cfg &= ~IDT_CFG_IDLECLP;
patm_nor_write(sc, IDT_NOR_CFG, cfg);
sc->flags |= PATM_UNASS;
}
} else {
if (sc->flags & PATM_UNASS) {
cfg = patm_nor_read(sc, IDT_NOR_CFG);
cfg |= IDT_CFG_IDLECLP;
patm_nor_write(sc, IDT_NOR_CFG, cfg);
sc->flags &= ~PATM_UNASS;
}
}
} else {
if (sc->utopia.state & UTP_ST_UNASS)
sc->flags |= PATM_UNASS;
else
sc->flags &= ~PATM_UNASS;
}
mtx_unlock(&sc->mtx);
break;
case SIOCSIFMTU:
/*
* Set the interface MTU.
*/
if (ifr->ifr_mtu > ATMMTU)
error = EINVAL;
else
ifp->if_mtu = ifr->ifr_mtu;
break;
case SIOCATMOPENVCC: /* kernel internal use */
error = patm_open_vcc(sc, (struct atmio_openvcc *)data);
break;
case SIOCATMCLOSEVCC: /* kernel internal use */
error = patm_close_vcc(sc, (struct atmio_closevcc *)data);
break;
case SIOCATMGVCCS: /* external use */
/* return vcc table */
vtab = atm_getvccs((struct atmio_vcc **)sc->vccs,
sc->mmap->max_conn, sc->vccs_open, &sc->mtx, 1);
error = copyout(vtab, ifr->ifr_data, sizeof(*vtab) +
vtab->count * sizeof(vtab->vccs[0]));
free(vtab, M_DEVBUF);
break;
case SIOCATMGETVCCS: /* netgraph internal use */
vtab = atm_getvccs((struct atmio_vcc **)sc->vccs,
sc->mmap->max_conn, sc->vccs_open, &sc->mtx, 0);
if (vtab == NULL) {
error = ENOMEM;
break;
}
*(void **)data = vtab;
break;
default:
patm_debug(sc, IOCTL, "unknown cmd=%08lx arg=%p", cmd, data);
error = EINVAL;
break;
}
return (error);
}