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/*-
* Copyright (c) 2001-2003
* 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>
*
* ForeHE driver.
*
* Ioctl handler.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/hatm/if_hatm_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/queue.h>
#include <sys/syslog.h>
#include <sys/condvar.h>
#include <sys/sysctl.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 <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/utopia/utopia.h>
#include <dev/hatm/if_hatmconf.h>
#include <dev/hatm/if_hatmreg.h>
#include <dev/hatm/if_hatmvar.h>
static u_int hatm_natm_traffic = ATMIO_TRAFFIC_UBR;
static u_int hatm_natm_pcr = 0;
static int hatm_sysctl_natm_traffic(SYSCTL_HANDLER_ARGS);
SYSCTL_DECL(_hw_atm);
SYSCTL_PROC(_hw_atm, OID_AUTO, natm_traffic, CTLTYPE_UINT | CTLFLAG_RW,
&hatm_natm_traffic, sizeof(hatm_natm_traffic), hatm_sysctl_natm_traffic,
"IU", "traffic type for NATM connections");
SYSCTL_UINT(_hw_atm, OID_AUTO, natm_pcr, CTLFLAG_RW,
&hatm_natm_pcr, 0, "PCR for NATM connections");
/*
* Try to open the given VCC.
*/
static int
hatm_open_vcc(struct hatm_softc *sc, struct atmio_openvcc *arg)
{
u_int cid;
struct hevcc *vcc;
int error = 0;
DBG(sc, VCC, ("Open VCC: %u.%u flags=%#x", arg->param.vpi,
arg->param.vci, arg->param.flags));
if ((arg->param.vpi & ~HE_VPI_MASK) ||
(arg->param.vci & ~HE_VCI_MASK) ||
(arg->param.vci == 0))
return (EINVAL);
cid = HE_CID(arg->param.vpi, arg->param.vci);
if ((arg->param.flags & ATMIO_FLAG_NOTX) &&
(arg->param.flags & ATMIO_FLAG_NORX))
return (EINVAL);
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)) {
error = EIO;
goto done;
}
if (sc->vccs[cid] != NULL) {
error = EBUSY;
goto done;
}
vcc->param = arg->param;
vcc->rxhand = arg->rxhand;
switch (vcc->param.aal) {
case ATMIO_AAL_0:
case ATMIO_AAL_5:
case ATMIO_AAL_RAW:
break;
default:
error = EINVAL;
goto done;
}
switch (vcc->param.traffic) {
case ATMIO_TRAFFIC_UBR:
case ATMIO_TRAFFIC_CBR:
case ATMIO_TRAFFIC_ABR:
break;
default:
error = EINVAL;
goto done;
}
vcc->ntpds = 0;
vcc->chain = vcc->last = NULL;
vcc->ibytes = vcc->ipackets = 0;
vcc->obytes = vcc->opackets = 0;
if (!(vcc->param.flags & ATMIO_FLAG_NOTX) &&
(error = hatm_tx_vcc_can_open(sc, cid, vcc)) != 0)
goto done;
/* ok - go ahead */
sc->vccs[cid] = vcc;
hatm_load_vc(sc, cid, 0);
/* don't free below */
vcc = NULL;
sc->open_vccs++;
done:
mtx_unlock(&sc->mtx);
if (vcc != NULL)
uma_zfree(sc->vcc_zone, vcc);
return (error);
}
void
hatm_load_vc(struct hatm_softc *sc, u_int cid, int reopen)
{
struct hevcc *vcc = sc->vccs[cid];
if (!(vcc->param.flags & ATMIO_FLAG_NOTX))
hatm_tx_vcc_open(sc, cid);
if (!(vcc->param.flags & ATMIO_FLAG_NORX))
hatm_rx_vcc_open(sc, cid);
if (reopen)
return;
/* inform management about non-NG and NG-PVCs */
if (!(vcc->param.flags & ATMIO_FLAG_NG) ||
(vcc->param.flags & ATMIO_FLAG_PVC))
ATMEV_SEND_VCC_CHANGED(IFP2IFATM(sc->ifp), vcc->param.vpi,
vcc->param.vci, 1);
}
/*
* VCC has been finally closed.
*/
void
hatm_vcc_closed(struct hatm_softc *sc, u_int cid)
{
struct hevcc *vcc = sc->vccs[cid];
/* inform management about non-NG and NG-PVCs */
if (!(vcc->param.flags & ATMIO_FLAG_NG) ||
(vcc->param.flags & ATMIO_FLAG_PVC))
ATMEV_SEND_VCC_CHANGED(IFP2IFATM(sc->ifp), HE_VPI(cid), HE_VCI(cid), 0);
sc->open_vccs--;
uma_zfree(sc->vcc_zone, vcc);
sc->vccs[cid] = NULL;
}
/*
* Try to close the given VCC
*/
static int
hatm_close_vcc(struct hatm_softc *sc, struct atmio_closevcc *arg)
{
u_int cid;
struct hevcc *vcc;
int error = 0;
DBG(sc, VCC, ("Close VCC: %u.%u", arg->vpi, arg->vci));
if((arg->vpi & ~HE_VPI_MASK) ||
(arg->vci & ~HE_VCI_MASK) ||
(arg->vci == 0))
return (EINVAL);
cid = HE_CID(arg->vpi, arg->vci);
mtx_lock(&sc->mtx);
vcc = sc->vccs[cid];
if (!(sc->ifp->if_drv_flags & IFF_DRV_RUNNING)) {
error = EIO;
goto done;
}
if (vcc == NULL || !(vcc->vflags & HE_VCC_OPEN)) {
error = ENOENT;
goto done;
}
if (vcc->vflags & HE_VCC_TX_OPEN)
hatm_tx_vcc_close(sc, cid);
if (vcc->vflags & HE_VCC_RX_OPEN)
hatm_rx_vcc_close(sc, cid);
if (vcc->param.flags & ATMIO_FLAG_ASYNC)
goto done;
while ((sc->ifp->if_drv_flags & IFF_DRV_RUNNING) &&
(vcc->vflags & (HE_VCC_TX_CLOSING | HE_VCC_RX_CLOSING)))
cv_wait(&sc->vcc_cv, &sc->mtx);
if (!(sc->ifp->if_drv_flags & IFF_DRV_RUNNING)) {
error = EIO;
goto done;
}
if (!(vcc->vflags & ATMIO_FLAG_NOTX))
hatm_tx_vcc_closed(sc, cid);
hatm_vcc_closed(sc, cid);
done:
mtx_unlock(&sc->mtx);
return (error);
}
/*
* IOCTL handler
*/
int
hatm_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct ifreq *ifr = (struct ifreq *)data;
struct ifaddr *ifa = (struct ifaddr *)data;
struct hatm_softc *sc = ifp->if_softc;
struct atmio_vcctable *vtab;
int error = 0;
switch (cmd) {
case SIOCSIFADDR:
mtx_lock(&sc->mtx);
ifp->if_flags |= IFF_UP;
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
hatm_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)) {
hatm_initialize(sc);
}
} else {
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
hatm_stop(sc);
}
}
mtx_unlock(&sc->mtx);
break;
case SIOCGIFMEDIA:
case SIOCSIFMEDIA:
error = ifmedia_ioctl(ifp, ifr, &sc->media, cmd);
break;
case SIOCSIFMTU:
/*
* Set the interface MTU.
*/
if (ifr->ifr_mtu > ATMMTU)
error = EINVAL;
else
ifp->if_mtu = ifr->ifr_mtu;
break;
case SIOCATMGVCCS:
/* return vcc table */
vtab = atm_getvccs((struct atmio_vcc **)sc->vccs,
HE_MAX_VCCS, sc->open_vccs, &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,
HE_MAX_VCCS, sc->open_vccs, &sc->mtx, 0);
if (vtab == NULL) {
error = ENOMEM;
break;
}
*(void **)data = vtab;
break;
case SIOCATMOPENVCC: /* kernel internal use */
error = hatm_open_vcc(sc, (struct atmio_openvcc *)data);
break;
case SIOCATMCLOSEVCC: /* kernel internal use */
error = hatm_close_vcc(sc, (struct atmio_closevcc *)data);
break;
default:
DBG(sc, IOCTL, ("cmd=%08lx arg=%p", cmd, data));
error = EINVAL;
break;
}
return (error);
}
static int
hatm_sysctl_natm_traffic(SYSCTL_HANDLER_ARGS)
{
int error;
int tmp;
tmp = hatm_natm_traffic;
error = sysctl_handle_int(oidp, &tmp, 0, req);
if (error != 0 || req->newptr == NULL)
return (error);
if (tmp != ATMIO_TRAFFIC_UBR && tmp != ATMIO_TRAFFIC_CBR)
return (EINVAL);
hatm_natm_traffic = tmp;
return (0);
}