OpenSolaris_b135/uts/common/os/sunndi.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/uio.h>
#include <sys/cred.h>
#include <sys/poll.h>
#include <sys/mman.h>
#include <sys/kmem.h>
#include <sys/model.h>
#include <sys/file.h>
#include <sys/proc.h>
#include <sys/open.h>
#include <sys/user.h>
#include <sys/t_lock.h>
#include <sys/vm.h>
#include <sys/stat.h>
#include <vm/hat.h>
#include <vm/seg.h>
#include <vm/as.h>
#include <sys/cmn_err.h>
#include <sys/debug.h>
#include <sys/avintr.h>
#include <sys/autoconf.h>
#include <sys/sunddi.h>
#include <sys/esunddi.h>
#include <sys/sunndi.h>
#include <sys/ddi.h>
#include <sys/kstat.h>
#include <sys/conf.h>
#include <sys/ddi_impldefs.h> /* include implementation structure defs */
#include <sys/ndi_impldefs.h>
#include <sys/hwconf.h>
#include <sys/pathname.h>
#include <sys/modctl.h>
#include <sys/epm.h>
#include <sys/devctl.h>
#include <sys/callb.h>
#include <sys/bootconf.h>
#include <sys/dacf_impl.h>
#include <sys/nvpair.h>
#include <sys/sunmdi.h>
#include <sys/fs/dv_node.h>
#include <sys/sunldi_impl.h>
#ifdef __sparc
#include <sys/archsystm.h> /* getpil/setpil */
#include <sys/membar.h> /* membar_sync */
#endif
/*
* ndi property handling
*/
int
ndi_prop_update_int(dev_t match_dev, dev_info_t *dip,
char *name, int data)
{
return (ddi_prop_update_common(match_dev, dip,
DDI_PROP_HW_DEF | DDI_PROP_TYPE_INT | DDI_PROP_DONTSLEEP,
name, &data, 1, ddi_prop_fm_encode_ints));
}
int
ndi_prop_update_int64(dev_t match_dev, dev_info_t *dip,
char *name, int64_t data)
{
return (ddi_prop_update_common(match_dev, dip,
DDI_PROP_HW_DEF | DDI_PROP_TYPE_INT64 | DDI_PROP_DONTSLEEP,
name, &data, 1, ddi_prop_fm_encode_int64));
}
int
ndi_prop_create_boolean(dev_t match_dev, dev_info_t *dip,
char *name)
{
return (ddi_prop_update_common(match_dev, dip,
DDI_PROP_HW_DEF | DDI_PROP_TYPE_ANY | DDI_PROP_DONTSLEEP,
name, NULL, 0, ddi_prop_fm_encode_bytes));
}
int
ndi_prop_update_int_array(dev_t match_dev, dev_info_t *dip,
char *name, int *data, uint_t nelements)
{
return (ddi_prop_update_common(match_dev, dip,
DDI_PROP_HW_DEF | DDI_PROP_TYPE_INT | DDI_PROP_DONTSLEEP,
name, data, nelements, ddi_prop_fm_encode_ints));
}
int
ndi_prop_update_int64_array(dev_t match_dev, dev_info_t *dip,
char *name, int64_t *data, uint_t nelements)
{
return (ddi_prop_update_common(match_dev, dip,
DDI_PROP_HW_DEF | DDI_PROP_TYPE_INT64 | DDI_PROP_DONTSLEEP,
name, data, nelements, ddi_prop_fm_encode_int64));
}
int
ndi_prop_update_string(dev_t match_dev, dev_info_t *dip,
char *name, char *data)
{
return (ddi_prop_update_common(match_dev, dip,
DDI_PROP_HW_DEF | DDI_PROP_TYPE_STRING | DDI_PROP_DONTSLEEP,
name, &data, 1, ddi_prop_fm_encode_string));
}
int
ndi_prop_update_string_array(dev_t match_dev, dev_info_t *dip,
char *name, char **data, uint_t nelements)
{
return (ddi_prop_update_common(match_dev, dip,
DDI_PROP_HW_DEF | DDI_PROP_TYPE_STRING | DDI_PROP_DONTSLEEP,
name, data, nelements,
ddi_prop_fm_encode_strings));
}
int
ndi_prop_update_byte_array(dev_t match_dev, dev_info_t *dip,
char *name, uchar_t *data, uint_t nelements)
{
if (nelements == 0)
return (DDI_PROP_INVAL_ARG);
return (ddi_prop_update_common(match_dev, dip,
DDI_PROP_HW_DEF | DDI_PROP_TYPE_BYTE | DDI_PROP_DONTSLEEP,
name, data, nelements, ddi_prop_fm_encode_bytes));
}
int
ndi_prop_remove(dev_t dev, dev_info_t *dip, char *name)
{
return (ddi_prop_remove_common(dev, dip, name, DDI_PROP_HW_DEF));
}
void
ndi_prop_remove_all(dev_info_t *dip)
{
i_ddi_prop_dyn_parent_set(dip, NULL);
ddi_prop_remove_all_common(dip, (int)DDI_PROP_HW_DEF);
}
/*
* Post an event notification to nexus driver responsible for handling
* the event. The responsible nexus is defined in the cookie passed in as
* the third parameter.
* The dip parameter is an artifact of an older implementation in which all
* requests to remove an eventcall would bubble up the tree. Today, this
* parameter is ignored.
* Input Parameters:
* dip - Ignored.
* rdip - device driver posting the event
* cookie - valid ddi_eventcookie_t, obtained by caller prior to
* invocation of this routine
* impl_data - used by framework
*/
/*ARGSUSED*/
int
ndi_post_event(dev_info_t *dip, dev_info_t *rdip,
ddi_eventcookie_t cookie, void *impl_data)
{
dev_info_t *ddip;
ASSERT(cookie);
ddip = NDI_EVENT_DDIP(cookie);
/*
* perform sanity checks. These conditions should never be true.
*/
ASSERT(DEVI(ddip)->devi_ops->devo_bus_ops != NULL);
ASSERT(DEVI(ddip)->devi_ops->devo_bus_ops->busops_rev >= BUSO_REV_6);
ASSERT(DEVI(ddip)->devi_ops->devo_bus_ops->bus_post_event != NULL);
/*
* post the event to the responsible ancestor
*/
return ((*(DEVI(ddip)->devi_ops->devo_bus_ops->bus_post_event))
(ddip, rdip, cookie, impl_data));
}
/*
* Calls the bus nexus driver's implementation of the
* (*bus_remove_eventcall)() interface.
*/
int
ndi_busop_remove_eventcall(dev_info_t *ddip, ddi_callback_id_t id)
{
ASSERT(id);
/* check for a correct revno before calling up the device tree. */
ASSERT(DEVI(ddip)->devi_ops->devo_bus_ops != NULL);
ASSERT(DEVI(ddip)->devi_ops->devo_bus_ops->busops_rev >= BUSO_REV_6);
if (DEVI(ddip)->devi_ops->devo_bus_ops->bus_remove_eventcall == NULL)
return (DDI_FAILURE);
/*
* request responsible nexus to remove the eventcall
*/
return ((*(DEVI(ddip)->devi_ops->devo_bus_ops->bus_remove_eventcall))
(ddip, id));
}
/*
* Calls the bus nexus driver's implementation of the
* (*bus_add_eventcall)() interface. The dip parameter is an
* artifact of an older implementation in which all requests to
* add an eventcall would bubble up the tree. Today, this parameter is
* ignored.
*/
/*ARGSUSED*/
int
ndi_busop_add_eventcall(dev_info_t *dip, dev_info_t *rdip,
ddi_eventcookie_t cookie, void (*callback)(), void *arg,
ddi_callback_id_t *cb_id)
{
dev_info_t *ddip = (dev_info_t *)NDI_EVENT_DDIP(cookie);
/*
* check for a correct revno before calling up the device tree.
*/
ASSERT(DEVI(ddip)->devi_ops->devo_bus_ops != NULL);
ASSERT(DEVI(ddip)->devi_ops->devo_bus_ops->busops_rev >= BUSO_REV_6);
if (DEVI(ddip)->devi_ops->devo_bus_ops->bus_add_eventcall == NULL)
return (DDI_FAILURE);
/*
* request responsible ancestor to add the eventcall
*/
return ((*(DEVI(ddip)->devi_ops->devo_bus_ops->bus_add_eventcall))
(ddip, rdip, cookie, callback, arg, cb_id));
}
/*
* Calls the bus nexus driver's implementation of the
* (*bus_get_eventcookie)() interface up the device tree hierarchy.
*/
int
ndi_busop_get_eventcookie(dev_info_t *dip, dev_info_t *rdip, char *name,
ddi_eventcookie_t *event_cookiep)
{
dev_info_t *pdip = (dev_info_t *)DEVI(dip)->devi_parent;
/* Can not be called from rootnex. */
ASSERT(pdip);
/*
* check for a correct revno before calling up the device tree.
*/
ASSERT(DEVI(pdip)->devi_ops->devo_bus_ops != NULL);
if ((DEVI(pdip)->devi_ops->devo_bus_ops->busops_rev < BUSO_REV_6) ||
(DEVI(pdip)->devi_ops->devo_bus_ops->bus_get_eventcookie == NULL)) {
#ifdef DEBUG
if ((DEVI(pdip)->devi_ops->devo_bus_ops->busops_rev >=
BUSO_REV_3) &&
(DEVI(pdip)->devi_ops->devo_bus_ops->bus_get_eventcookie)) {
cmn_err(CE_WARN,
"Warning: %s%d busops_rev=%d no longer supported"
" by the NDI event framework.\nBUSO_REV_6 or "
"greater must be used.",
DEVI(pdip)->devi_binding_name,
DEVI(pdip)->devi_instance,
DEVI(pdip)->devi_ops->devo_bus_ops->busops_rev);
}
#endif /* DEBUG */
return (ndi_busop_get_eventcookie(pdip, rdip, name,
event_cookiep));
}
return ((*(DEVI(pdip)->devi_ops->devo_bus_ops->bus_get_eventcookie))
(pdip, rdip, name, event_cookiep));
}
/*
* Copy in the devctl IOCTL data and return a handle to
* the data.
*/
int
ndi_dc_allochdl(void *iocarg, struct devctl_iocdata **rdcp)
{
struct devctl_iocdata *dcp;
char *cpybuf;
ASSERT(rdcp != NULL);
dcp = kmem_zalloc(sizeof (*dcp), KM_SLEEP);
if (get_udatamodel() == DATAMODEL_NATIVE) {
if (copyin(iocarg, dcp, sizeof (*dcp)) != 0) {
kmem_free(dcp, sizeof (*dcp));
return (NDI_FAULT);
}
}
#ifdef _SYSCALL32_IMPL
else {
struct devctl_iocdata32 dcp32;
if (copyin(iocarg, &dcp32, sizeof (dcp32)) != 0) {
kmem_free(dcp, sizeof (*dcp));
return (NDI_FAULT);
}
dcp->cmd = (uint_t)dcp32.cmd;
dcp->flags = (uint_t)dcp32.flags;
dcp->cpyout_buf = (uint_t *)(uintptr_t)dcp32.cpyout_buf;
dcp->nvl_user = (nvlist_t *)(uintptr_t)dcp32.nvl_user;
dcp->nvl_usersz = (size_t)dcp32.nvl_usersz;
dcp->c_nodename = (char *)(uintptr_t)dcp32.c_nodename;
dcp->c_unitaddr = (char *)(uintptr_t)dcp32.c_unitaddr;
}
#endif
if (dcp->c_nodename != NULL) {
cpybuf = kmem_alloc(MAXNAMELEN, KM_SLEEP);
if (copyinstr(dcp->c_nodename, cpybuf, MAXNAMELEN, 0) != 0) {
kmem_free(cpybuf, MAXNAMELEN);
kmem_free(dcp, sizeof (*dcp));
return (NDI_FAULT);
}
cpybuf[MAXNAMELEN - 1] = '\0';
dcp->c_nodename = cpybuf;
}
if (dcp->c_unitaddr != NULL) {
cpybuf = kmem_alloc(MAXNAMELEN, KM_SLEEP);
if (copyinstr(dcp->c_unitaddr, cpybuf, MAXNAMELEN, 0) != 0) {
kmem_free(cpybuf, MAXNAMELEN);
if (dcp->c_nodename != NULL)
kmem_free(dcp->c_nodename, MAXNAMELEN);
kmem_free(dcp, sizeof (*dcp));
return (NDI_FAULT);
}
cpybuf[MAXNAMELEN - 1] = '\0';
dcp->c_unitaddr = cpybuf;
}
/*
* copyin and unpack a user defined nvlist if one was passed
*/
if (dcp->nvl_user != NULL) {
if ((dcp->nvl_usersz == 0) ||
(dcp->nvl_usersz > DEVCTL_MAX_NVL_USERSZ)) {
if (dcp->c_nodename != NULL)
kmem_free(dcp->c_nodename, MAXNAMELEN);
if (dcp->c_unitaddr != NULL)
kmem_free(dcp->c_unitaddr, MAXNAMELEN);
kmem_free(dcp, sizeof (*dcp));
return (NDI_FAILURE);
}
cpybuf = kmem_alloc(dcp->nvl_usersz, KM_SLEEP);
if (copyin(dcp->nvl_user, cpybuf, dcp->nvl_usersz) != 0) {
kmem_free(cpybuf, dcp->nvl_usersz);
if (dcp->c_nodename != NULL)
kmem_free(dcp->c_nodename, MAXNAMELEN);
if (dcp->c_unitaddr != NULL)
kmem_free(dcp->c_unitaddr, MAXNAMELEN);
kmem_free(dcp, sizeof (*dcp));
return (NDI_FAULT);
}
if (nvlist_unpack(cpybuf, dcp->nvl_usersz, &dcp->nvl_user,
KM_SLEEP)) {
kmem_free(cpybuf, dcp->nvl_usersz);
if (dcp->c_nodename != NULL)
kmem_free(dcp->c_nodename, MAXNAMELEN);
if (dcp->c_unitaddr != NULL)
kmem_free(dcp->c_unitaddr, MAXNAMELEN);
kmem_free(dcp, sizeof (*dcp));
return (NDI_FAULT);
}
/*
* free the buffer containing the packed nvlist
*/
kmem_free(cpybuf, dcp->nvl_usersz);
}
*rdcp = dcp;
return (NDI_SUCCESS);
}
/*
* free all space allocated to a handle.
*/
void
ndi_dc_freehdl(struct devctl_iocdata *dcp)
{
ASSERT(dcp != NULL);
if (dcp->c_nodename != NULL)
kmem_free(dcp->c_nodename, MAXNAMELEN);
if (dcp->c_unitaddr != NULL)
kmem_free(dcp->c_unitaddr, MAXNAMELEN);
if (dcp->nvl_user != NULL)
nvlist_free(dcp->nvl_user);
kmem_free(dcp, sizeof (*dcp));
}
char *
ndi_dc_getname(struct devctl_iocdata *dcp)
{
ASSERT(dcp != NULL);
return (dcp->c_nodename);
}
char *
ndi_dc_getaddr(struct devctl_iocdata *dcp)
{
ASSERT(dcp != NULL);
return (dcp->c_unitaddr);
}
nvlist_t *
ndi_dc_get_ap_data(struct devctl_iocdata *dcp)
{
ASSERT(dcp != NULL);
return (dcp->nvl_user);
}
/*
* Transition the child named by "devname@devaddr" to the online state.
* For use by a driver's DEVCTL_DEVICE_ONLINE handler.
*/
int
ndi_devctl_device_online(dev_info_t *dip, struct devctl_iocdata *dcp,
uint_t flags)
{
int rval;
char *name;
dev_info_t *rdip;
if (ndi_dc_getname(dcp) == NULL || ndi_dc_getaddr(dcp) == NULL)
return (EINVAL);
name = kmem_alloc(MAXNAMELEN, KM_SLEEP);
(void) snprintf(name, MAXNAMELEN, "%s@%s",
ndi_dc_getname(dcp), ndi_dc_getaddr(dcp));
if ((rval = ndi_devi_config_one(dip, name, &rdip,
flags | NDI_DEVI_ONLINE | NDI_CONFIG)) == NDI_SUCCESS) {
ndi_rele_devi(rdip);
/*
* Invalidate devfs cached directory contents. For the checks
* in the "if" condition see the comment in ndi_devi_online().
*/
if (i_ddi_devi_attached(dip) && !DEVI_BUSY_OWNED(dip))
(void) devfs_clean(dip, NULL, 0);
} else if (rval == NDI_BUSY) {
rval = EBUSY;
} else if (rval == NDI_FAILURE) {
rval = EIO;
}
NDI_DEBUG(flags, (CE_CONT, "%s%d: online: %s: %s\n",
ddi_driver_name(dip), ddi_get_instance(dip), name,
((rval == NDI_SUCCESS) ? "ok" : "failed")));
kmem_free(name, MAXNAMELEN);
return (rval);
}
/*
* Transition the child named by "devname@devaddr" to the offline state.
* For use by a driver's DEVCTL_DEVICE_OFFLINE handler.
*/
int
ndi_devctl_device_offline(dev_info_t *dip, struct devctl_iocdata *dcp,
uint_t flags)
{
int rval;
char *name;
if (ndi_dc_getname(dcp) == NULL || ndi_dc_getaddr(dcp) == NULL)
return (EINVAL);
name = kmem_alloc(MAXNAMELEN, KM_SLEEP);
(void) snprintf(name, MAXNAMELEN, "%s@%s",
ndi_dc_getname(dcp), ndi_dc_getaddr(dcp));
(void) devfs_clean(dip, name, DV_CLEAN_FORCE);
rval = ndi_devi_unconfig_one(dip, name, NULL,
flags | NDI_DEVI_OFFLINE);
if (rval == NDI_BUSY) {
rval = EBUSY;
} else if (rval == NDI_FAILURE) {
rval = EIO;
}
NDI_DEBUG(flags, (CE_CONT, "%s%d: offline: %s: %s\n",
ddi_driver_name(dip), ddi_get_instance(dip), name,
(rval == NDI_SUCCESS) ? "ok" : "failed"));
kmem_free(name, MAXNAMELEN);
return (rval);
}
/*
* Remove the child named by "devname@devaddr".
* For use by a driver's DEVCTL_DEVICE_REMOVE handler.
*/
int
ndi_devctl_device_remove(dev_info_t *dip, struct devctl_iocdata *dcp,
uint_t flags)
{
int rval;
char *name;
if (ndi_dc_getname(dcp) == NULL || ndi_dc_getaddr(dcp) == NULL)
return (EINVAL);
name = kmem_alloc(MAXNAMELEN, KM_SLEEP);
(void) snprintf(name, MAXNAMELEN, "%s@%s",
ndi_dc_getname(dcp), ndi_dc_getaddr(dcp));
(void) devfs_clean(dip, name, DV_CLEAN_FORCE);
rval = ndi_devi_unconfig_one(dip, name, NULL, flags | NDI_DEVI_REMOVE);
if (rval == NDI_BUSY) {
rval = EBUSY;
} else if (rval == NDI_FAILURE) {
rval = EIO;
}
NDI_DEBUG(flags, (CE_CONT, "%s%d: remove: %s: %s\n",
ddi_driver_name(dip), ddi_get_instance(dip), name,
(rval == NDI_SUCCESS) ? "ok" : "failed"));
kmem_free(name, MAXNAMELEN);
return (rval);
}
/*
* Return devctl state of the child named by "name@addr".
* For use by a driver's DEVCTL_DEVICE_GETSTATE handler.
*/
int
ndi_devctl_device_getstate(dev_info_t *parent, struct devctl_iocdata *dcp,
uint_t *state)
{
dev_info_t *dip;
char *name, *addr;
char *devname;
int devnamelen;
int circ;
if (parent == NULL ||
((name = ndi_dc_getname(dcp)) == NULL) ||
((addr = ndi_dc_getaddr(dcp)) == NULL))
return (NDI_FAILURE);
devnamelen = strlen(name) + strlen(addr) + 2;
devname = kmem_alloc(devnamelen, KM_SLEEP);
if (strlen(addr) > 0) {
(void) snprintf(devname, devnamelen, "%s@%s", name, addr);
} else {
(void) snprintf(devname, devnamelen, "%s", name);
}
ndi_devi_enter(parent, &circ);
dip = ndi_devi_findchild(parent, devname);
kmem_free(devname, devnamelen);
if (dip == NULL) {
ndi_devi_exit(parent, circ);
return (NDI_FAILURE);
}
mutex_enter(&(DEVI(dip)->devi_lock));
if (DEVI_IS_DEVICE_OFFLINE(dip)) {
*state = DEVICE_OFFLINE;
} else if (DEVI_IS_DEVICE_DOWN(dip)) {
*state = DEVICE_DOWN;
} else {
*state = DEVICE_ONLINE;
if (devi_stillreferenced(dip) == DEVI_REFERENCED)
*state |= DEVICE_BUSY;
}
mutex_exit(&(DEVI(dip)->devi_lock));
ndi_devi_exit(parent, circ);
return (NDI_SUCCESS);
}
/*
* return the current state of the device "dip"
*
* recommend using ndi_devctl_ioctl() or
* ndi_devctl_device_getstate() instead
*/
int
ndi_dc_return_dev_state(dev_info_t *dip, struct devctl_iocdata *dcp)
{
dev_info_t *pdip;
uint_t devstate = 0;
int circ;
if ((dip == NULL) || (dcp == NULL))
return (NDI_FAILURE);
pdip = ddi_get_parent(dip);
ndi_devi_enter(pdip, &circ);
mutex_enter(&(DEVI(dip)->devi_lock));
if (DEVI_IS_DEVICE_OFFLINE(dip)) {
devstate = DEVICE_OFFLINE;
} else if (DEVI_IS_DEVICE_DOWN(dip)) {
devstate = DEVICE_DOWN;
} else {
devstate = DEVICE_ONLINE;
if (devi_stillreferenced(dip) == DEVI_REFERENCED)
devstate |= DEVICE_BUSY;
}
mutex_exit(&(DEVI(dip)->devi_lock));
ndi_devi_exit(pdip, circ);
if (copyout(&devstate, dcp->cpyout_buf, sizeof (uint_t)) != 0)
return (NDI_FAULT);
return (NDI_SUCCESS);
}
/*
* Return device's bus state
* For use by a driver's DEVCTL_BUS_GETSTATE handler.
*/
int
ndi_devctl_bus_getstate(dev_info_t *dip, struct devctl_iocdata *dcp,
uint_t *state)
{
if ((dip == NULL) || (dcp == NULL))
return (NDI_FAILURE);
return (ndi_get_bus_state(dip, state));
}
/*
* Generic devctl ioctl handler
*/
int
ndi_devctl_ioctl(dev_info_t *dip, int cmd, intptr_t arg, int mode, uint_t flags)
{
_NOTE(ARGUNUSED(mode))
struct devctl_iocdata *dcp;
uint_t state;
int rval = ENOTTY;
/*
* read devctl ioctl data
*/
if (ndi_dc_allochdl((void *)arg, &dcp) != NDI_SUCCESS)
return (EFAULT);
switch (cmd) {
case DEVCTL_BUS_GETSTATE:
rval = ndi_devctl_bus_getstate(dip, dcp, &state);
if (rval == NDI_SUCCESS) {
if (copyout(&state, dcp->cpyout_buf,
sizeof (uint_t)) != 0)
rval = NDI_FAULT;
}
break;
case DEVCTL_DEVICE_ONLINE:
rval = ndi_devctl_device_online(dip, dcp, flags);
break;
case DEVCTL_DEVICE_OFFLINE:
rval = ndi_devctl_device_offline(dip, dcp, flags);
break;
case DEVCTL_DEVICE_GETSTATE:
rval = ndi_devctl_device_getstate(dip, dcp, &state);
if (rval == NDI_SUCCESS) {
if (copyout(&state, dcp->cpyout_buf,
sizeof (uint_t)) != 0)
rval = NDI_FAULT;
}
break;
case DEVCTL_DEVICE_REMOVE:
rval = ndi_devctl_device_remove(dip, dcp, flags);
break;
case DEVCTL_BUS_DEV_CREATE:
rval = ndi_dc_devi_create(dcp, dip, 0, NULL);
break;
/*
* ioctls for which a generic implementation makes no sense
*/
case DEVCTL_BUS_RESET:
case DEVCTL_BUS_RESETALL:
case DEVCTL_DEVICE_RESET:
case DEVCTL_AP_CONNECT:
case DEVCTL_AP_DISCONNECT:
case DEVCTL_AP_INSERT:
case DEVCTL_AP_REMOVE:
case DEVCTL_AP_CONFIGURE:
case DEVCTL_AP_UNCONFIGURE:
case DEVCTL_AP_GETSTATE:
case DEVCTL_AP_CONTROL:
case DEVCTL_BUS_QUIESCE:
case DEVCTL_BUS_UNQUIESCE:
rval = ENOTSUP;
break;
}
ndi_dc_freehdl(dcp);
return (rval);
}
/*
* Copyout the state of the Attachment Point "ap" to the requesting
* user process.
*/
int
ndi_dc_return_ap_state(devctl_ap_state_t *ap, struct devctl_iocdata *dcp)
{
if ((ap == NULL) || (dcp == NULL))
return (NDI_FAILURE);
if (get_udatamodel() == DATAMODEL_NATIVE) {
if (copyout(ap, dcp->cpyout_buf,
sizeof (devctl_ap_state_t)) != 0)
return (NDI_FAULT);
}
#ifdef _SYSCALL32_IMPL
else {
struct devctl_ap_state32 ap_state32;
ap_state32.ap_rstate = ap->ap_rstate;
ap_state32.ap_ostate = ap->ap_ostate;
ap_state32.ap_condition = ap->ap_condition;
ap_state32.ap_error_code = ap->ap_error_code;
ap_state32.ap_in_transition = ap->ap_in_transition;
ap_state32.ap_last_change = (time32_t)ap->ap_last_change;
if (copyout(&ap_state32, dcp->cpyout_buf,
sizeof (devctl_ap_state32_t)) != 0)
return (NDI_FAULT);
}
#endif
return (NDI_SUCCESS);
}
/*
* Copyout the bus state of the bus nexus device "dip" to the requesting
* user process.
*/
int
ndi_dc_return_bus_state(dev_info_t *dip, struct devctl_iocdata *dcp)
{
uint_t devstate = 0;
if ((dip == NULL) || (dcp == NULL))
return (NDI_FAILURE);
if (ndi_get_bus_state(dip, &devstate) != NDI_SUCCESS)
return (NDI_FAILURE);
if (copyout(&devstate, dcp->cpyout_buf, sizeof (uint_t)) != 0)
return (NDI_FAULT);
return (NDI_SUCCESS);
}
static int
i_dc_devi_create(struct devctl_iocdata *, dev_info_t *, dev_info_t **);
/*
* create a child device node given the property definitions
* supplied by the userland process
*/
int
ndi_dc_devi_create(struct devctl_iocdata *dcp, dev_info_t *pdip, int flags,
dev_info_t **rdip)
{
dev_info_t *cdip;
int rv, circular = 0;
char devnm[MAXNAMELEN];
int nmlen;
/*
* The child device may have been pre-constructed by an earlier
* call to this function with the flag DEVCTL_CONSTRUCT set.
*/
if ((cdip = (rdip != NULL) ? *rdip : NULL) == NULL)
if ((rv = i_dc_devi_create(dcp, pdip, &cdip)) != 0)
return (rv);
ASSERT(cdip != NULL);
/*
* Return the device node partially constructed if the
* DEVCTL_CONSTRUCT flag is set.
*/
if (flags & DEVCTL_CONSTRUCT) {
if (rdip == NULL) {
(void) ndi_devi_free(cdip);
return (EINVAL);
}
*rdip = cdip;
return (0);
}
/*
* Bring the node up to a named but OFFLINE state. The calling
* application will need to manage the node from here on.
*/
if (dcp->flags & DEVCTL_OFFLINE) {
/*
* In the unlikely event that the dip was somehow attached by
* the userland process (and device contracts or LDI opens
* were registered against the dip) after it was created by
* a previous DEVCTL_CONSTRUCT call, we start notify
* proceedings on this dip. Note that we don't need to
* return the dip after a failure of the notify since
* for a contract or LDI handle to be created the dip was
* already available to the user.
*/
if (e_ddi_offline_notify(cdip) == DDI_FAILURE) {
return (EBUSY);
}
/*
* hand set the OFFLINE flag to prevent any asynchronous
* autoconfiguration operations from attaching this node.
*/
mutex_enter(&(DEVI(cdip)->devi_lock));
DEVI_SET_DEVICE_OFFLINE(cdip);
mutex_exit(&(DEVI(cdip)->devi_lock));
e_ddi_offline_finalize(cdip, DDI_SUCCESS);
rv = ndi_devi_bind_driver(cdip, flags);
if (rv != NDI_SUCCESS) {
(void) ndi_devi_offline(cdip, NDI_DEVI_REMOVE);
return (ENXIO);
}
/*
* remove the dev_info node if it failed to bind to a
* driver above.
*/
if (i_ddi_node_state(cdip) < DS_BOUND) {
(void) ndi_devi_offline(cdip, NDI_DEVI_REMOVE);
return (ENXIO);
}
/*
* add the node to the per-driver list and INITCHILD it
* to give it a name.
*/
ndi_devi_enter(pdip, &circular);
if ((rv = ddi_initchild(pdip, cdip)) != DDI_SUCCESS) {
(void) ndi_devi_offline(cdip, NDI_DEVI_REMOVE);
ndi_devi_exit(pdip, circular);
return (EINVAL);
}
ndi_devi_exit(pdip, circular);
} else {
/*
* Attempt to bring the device ONLINE. If the request to
* fails, remove the dev_info node.
*/
if (ndi_devi_online(cdip, NDI_ONLINE_ATTACH) != NDI_SUCCESS) {
(void) ndi_devi_offline(cdip, NDI_DEVI_REMOVE);
return (ENXIO);
}
/*
* if the node was successfully added but there was
* no driver available for the device, remove the node
*/
if (i_ddi_node_state(cdip) < DS_BOUND) {
(void) ndi_devi_offline(cdip, NDI_DEVI_REMOVE);
return (ENODEV);
}
}
/*
* return a handle to the child device
* copy out the name of the newly attached child device if
* the IOCTL request has provided a copyout buffer.
*/
if (rdip != NULL)
*rdip = cdip;
if (dcp->cpyout_buf == NULL)
return (0);
ASSERT(ddi_node_name(cdip) != NULL);
ASSERT(ddi_get_name_addr(cdip) != NULL);
nmlen = snprintf(devnm, MAXNAMELEN, "%s@%s",
ddi_node_name(cdip), ddi_get_name_addr(cdip));
if (copyout(&devnm, dcp->cpyout_buf, nmlen) != 0) {
(void) ndi_devi_offline(cdip, NDI_DEVI_REMOVE);
return (EFAULT);
}
return (0);
}
static int
i_dc_devi_create(struct devctl_iocdata *dcp, dev_info_t *pdip,
dev_info_t **rdip)
{
dev_info_t *cdip;
char *cname = NULL;
nvlist_t *nvlp = dcp->nvl_user;
nvpair_t *npp;
char *np;
int rv = 0;
ASSERT(rdip != NULL && *rdip == NULL);
if ((nvlp == NULL) ||
(nvlist_lookup_string(nvlp, DC_DEVI_NODENAME, &cname) != 0))
return (EINVAL);
/*
* construct a new dev_info node with a user-provided nodename
*/
ndi_devi_alloc_sleep(pdip, cname, (pnode_t)DEVI_SID_NODEID, &cdip);
/*
* create hardware properties for each member in the property
* list.
*/
for (npp = nvlist_next_nvpair(nvlp, NULL); (npp != NULL && !rv);
npp = nvlist_next_nvpair(nvlp, npp)) {
np = nvpair_name(npp);
/*
* skip the nodename property
*/
if (strcmp(np, DC_DEVI_NODENAME) == 0)
continue;
switch (nvpair_type(npp)) {
case DATA_TYPE_INT32: {
int32_t prop_val;
if ((rv = nvpair_value_int32(npp, &prop_val)) != 0)
break;
(void) ndi_prop_update_int(DDI_DEV_T_NONE, cdip, np,
(int)prop_val);
break;
}
case DATA_TYPE_STRING: {
char *prop_val;
if ((rv = nvpair_value_string(npp, &prop_val)) != 0)
break;
(void) ndi_prop_update_string(DDI_DEV_T_NONE, cdip,
np, prop_val);
break;
}
case DATA_TYPE_BYTE_ARRAY: {
uchar_t *val;
uint_t nelms;
if ((rv = nvpair_value_byte_array(npp, &val,
&nelms)) != 0)
break;
(void) ndi_prop_update_byte_array(DDI_DEV_T_NONE,
cdip, np, (uchar_t *)val, nelms);
break;
}
case DATA_TYPE_INT32_ARRAY: {
int32_t *val;
uint_t nelms;
if ((rv = nvpair_value_int32_array(npp, &val,
&nelms)) != 0)
break;
(void) ndi_prop_update_int_array(DDI_DEV_T_NONE,
cdip, np, val, nelms);
break;
}
case DATA_TYPE_STRING_ARRAY: {
char **val;
uint_t nelms;
if ((rv = nvpair_value_string_array(npp, &val,
&nelms)) != 0)
break;
(void) ndi_prop_update_string_array(DDI_DEV_T_NONE,
cdip, np, val, nelms);
break;
}
/*
* unsupported property data type
*/
default:
rv = EINVAL;
}
}
/*
* something above failed
* destroy the partially child device and abort the request
*/
if (rv != 0) {
(void) ndi_devi_free(cdip);
return (rv);
}
*rdip = cdip;
return (0);
}
/*
* return current soft bus state of bus nexus "dip"
*/
int
ndi_get_bus_state(dev_info_t *dip, uint_t *rstate)
{
if (dip == NULL || rstate == NULL)
return (NDI_FAILURE);
if (DEVI(dip)->devi_ops->devo_bus_ops == NULL)
return (NDI_FAILURE);
mutex_enter(&(DEVI(dip)->devi_lock));
if (DEVI_IS_BUS_QUIESCED(dip))
*rstate = BUS_QUIESCED;
else if (DEVI_IS_BUS_DOWN(dip))
*rstate = BUS_SHUTDOWN;
else
*rstate = BUS_ACTIVE;
mutex_exit(&(DEVI(dip)->devi_lock));
return (NDI_SUCCESS);
}
/*
* Set the soft state of bus nexus "dip"
*/
int
ndi_set_bus_state(dev_info_t *dip, uint_t state)
{
int rv = NDI_SUCCESS;
if (dip == NULL)
return (NDI_FAILURE);
mutex_enter(&(DEVI(dip)->devi_lock));
switch (state) {
case BUS_QUIESCED:
DEVI_SET_BUS_QUIESCE(dip);
break;
case BUS_ACTIVE:
DEVI_SET_BUS_ACTIVE(dip);
DEVI_SET_BUS_UP(dip);
break;
case BUS_SHUTDOWN:
DEVI_SET_BUS_DOWN(dip);
break;
default:
rv = NDI_FAILURE;
}
mutex_exit(&(DEVI(dip)->devi_lock));
return (rv);
}
/*
* These dummy functions are obsolete and may be removed.
* Retained for existing driver compatibility only.
* Drivers should be fixed not to use these functions.
* Don't write new code using these obsolete interfaces.
*/
/*ARGSUSED*/
void
i_ndi_block_device_tree_changes(uint_t *lkcnt) /* obsolete */
{
/* obsolete dummy function */
}
/*ARGSUSED*/
void
i_ndi_allow_device_tree_changes(uint_t lkcnt) /* obsolete */
{
/* obsolete dummy function */
}
/*
* Single thread entry into per-driver list
*/
/*ARGSUSED*/
void
e_ddi_enter_driver_list(struct devnames *dnp, int *listcnt) /* obsolete */
{
/* obsolete dummy function */
}
/*
* release the per-driver list
*/
/*ARGSUSED*/
void
e_ddi_exit_driver_list(struct devnames *dnp, int listcnt) /* obsolete */
{
/* obsolete dummy function */
}
/*
* Attempt to enter driver list
*/
/*ARGSUSED*/
int
e_ddi_tryenter_driver_list(struct devnames *dnp, int *listcnt) /* obsolete */
{
return (1); /* obsolete dummy function */
}
/*
* ndi event handling support functions:
* The NDI event support model is as follows:
*
* The nexus driver defines a set of events using some static structures (so
* these structures can be shared by all instances of the nexus driver).
* The nexus driver allocates an event handle and binds the event set
* to this handle. The nexus driver's event busop functions can just
* call the appropriate NDI event support function using this handle
* as the first argument.
*
* The reasoning for tying events to the device tree is that the entity
* generating the callback will typically be one of the device driver's
* ancestors in the tree.
*/
static int ndi_event_debug = 0;
#ifdef DEBUG
#define NDI_EVENT_DEBUG ndi_event_debug
#endif /* DEBUG */
/*
* allocate a new ndi event handle
*/
int
ndi_event_alloc_hdl(dev_info_t *dip, ddi_iblock_cookie_t cookie,
ndi_event_hdl_t *handle, uint_t flag)
{
struct ndi_event_hdl *ndi_event_hdl;
ndi_event_hdl = kmem_zalloc(sizeof (struct ndi_event_hdl),
((flag & NDI_NOSLEEP) ? KM_NOSLEEP : KM_SLEEP));
if (!ndi_event_hdl) {
return (NDI_FAILURE);
}
ndi_event_hdl->ndi_evthdl_dip = dip;
ndi_event_hdl->ndi_evthdl_iblock_cookie = cookie;
mutex_init(&ndi_event_hdl->ndi_evthdl_mutex, NULL,
MUTEX_DRIVER, (void *)cookie);
mutex_init(&ndi_event_hdl->ndi_evthdl_cb_mutex, NULL,
MUTEX_DRIVER, (void *)cookie);
*handle = (ndi_event_hdl_t)ndi_event_hdl;
return (NDI_SUCCESS);
}
/*
* free the ndi event handle
*/
int
ndi_event_free_hdl(ndi_event_hdl_t handle)
{
struct ndi_event_hdl *ndi_event_hdl = (struct ndi_event_hdl *)handle;
ndi_event_cookie_t *cookie;
ndi_event_cookie_t *free;
ASSERT(handle);
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
mutex_enter(&ndi_event_hdl->ndi_evthdl_cb_mutex);
cookie = ndi_event_hdl->ndi_evthdl_cookie_list;
/* deallocate all defined cookies */
while (cookie != NULL) {
ASSERT(cookie->callback_list == NULL);
free = cookie;
cookie = cookie->next_cookie;
kmem_free(free, sizeof (ndi_event_cookie_t));
}
mutex_exit(&ndi_event_hdl->ndi_evthdl_cb_mutex);
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
/* destroy mutexes */
mutex_destroy(&ndi_event_hdl->ndi_evthdl_mutex);
mutex_destroy(&ndi_event_hdl->ndi_evthdl_cb_mutex);
/* free event handle */
kmem_free(ndi_event_hdl, sizeof (struct ndi_event_hdl));
return (NDI_SUCCESS);
}
/*
* ndi_event_bind_set() adds a set of events to the NDI event
* handle.
*
* Events generated by high level interrupts should not
* be mixed in the same event set with events generated by
* normal interrupts or kernel events.
*
* This function can be called multiple times to bind
* additional sets to the event handle.
* However, events generated by high level interrupts cannot
* be bound to a handle that already has bound events generated
* by normal interrupts or from kernel context and vice versa.
*/
int
ndi_event_bind_set(ndi_event_hdl_t handle,
ndi_event_set_t *ndi_events,
uint_t flag)
{
struct ndi_event_hdl *ndi_event_hdl;
ndi_event_cookie_t *next, *prev, *new_cookie;
uint_t i, len;
uint_t dup = 0;
uint_t high_plevels, other_plevels;
ndi_event_definition_t *ndi_event_defs;
int km_flag = ((flag & NDI_NOSLEEP) ? KM_NOSLEEP : KM_SLEEP);
ASSERT(handle);
ASSERT(ndi_events);
/*
* binding must be performed during attach/detach
*/
if (!DEVI_IS_ATTACHING(handle->ndi_evthdl_dip) &&
!DEVI_IS_DETACHING(handle->ndi_evthdl_dip)) {
cmn_err(CE_WARN, "ndi_event_bind_set must be called within "
"attach or detach");
return (NDI_FAILURE);
}
/*
* if it is not the correct version or the event set is
* empty, bail out
*/
if (ndi_events->ndi_events_version != NDI_EVENTS_REV1)
return (NDI_FAILURE);
ndi_event_hdl = (struct ndi_event_hdl *)handle;
ndi_event_defs = ndi_events->ndi_event_defs;
high_plevels = other_plevels = 0;
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
/* check for mixing events at high level with the other types */
for (i = 0; i < ndi_events->ndi_n_events; i++) {
if (ndi_event_defs[i].ndi_event_plevel == EPL_HIGHLEVEL) {
high_plevels++;
} else {
other_plevels++;
}
}
/*
* bail out if high level events are mixed with other types in this
* event set or the set is incompatible with the set in the handle
*/
if ((high_plevels && other_plevels) ||
(other_plevels && ndi_event_hdl->ndi_evthdl_high_plevels) ||
(high_plevels && ndi_event_hdl->ndi_evthdl_other_plevels)) {
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NDI_FAILURE);
}
/*
* check for duplicate events in both the existing handle
* and the event set, add events if not duplicates
*/
next = ndi_event_hdl->ndi_evthdl_cookie_list;
for (i = 0; i < ndi_events->ndi_n_events; i++) {
while (next != NULL) {
len = strlen(NDI_EVENT_NAME(next)) + 1;
if (strncmp(NDI_EVENT_NAME(next),
ndi_event_defs[i].ndi_event_name, len) == 0) {
dup = 1;
break;
}
prev = next;
next = next->next_cookie;
}
if (dup == 0) {
new_cookie = kmem_zalloc(sizeof (ndi_event_cookie_t),
km_flag);
if (!new_cookie)
return (NDI_FAILURE);
if (ndi_event_hdl->ndi_evthdl_n_events == 0) {
ndi_event_hdl->ndi_evthdl_cookie_list =
new_cookie;
} else {
prev->next_cookie = new_cookie;
}
ndi_event_hdl->ndi_evthdl_n_events++;
/*
* set up new cookie
*/
new_cookie->definition = &ndi_event_defs[i];
new_cookie->ddip = ndi_event_hdl->ndi_evthdl_dip;
} else {
/*
* event not added, must correct plevel numbers
*/
if (ndi_event_defs[i].ndi_event_plevel ==
EPL_HIGHLEVEL) {
high_plevels--;
} else {
other_plevels--;
}
}
dup = 0;
next = ndi_event_hdl->ndi_evthdl_cookie_list;
prev = NULL;
}
ndi_event_hdl->ndi_evthdl_high_plevels += high_plevels;
ndi_event_hdl->ndi_evthdl_other_plevels += other_plevels;
ASSERT((ndi_event_hdl->ndi_evthdl_high_plevels == 0) ||
(ndi_event_hdl->ndi_evthdl_other_plevels == 0));
#ifdef NDI_EVENT_DEBUG
if (ndi_event_debug) {
ndi_event_dump_hdl(ndi_event_hdl, "ndi_event_bind_set");
}
#endif /* NDI_EVENT_DEBUG */
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NDI_SUCCESS);
}
/*
* ndi_event_unbind_set() unbinds a set of events, previously
* bound using ndi_event_bind_set(), from the NDI event
* handle.
*
* This routine will unbind all events in the event set. If an event,
* specified in the event set, is not found in the handle, this
* routine will proceed onto the next member of the set as if the event
* was never specified.
*
* The event set may be a subset of the set of events that
* was previously bound to the handle. For example, events
* can be individually unbound.
*
* An event cannot be unbound if callbacks are still
* registered against the event.
*/
/*ARGSUSED*/
int
ndi_event_unbind_set(ndi_event_hdl_t handle, ndi_event_set_t *ndi_events,
uint_t flag)
{
ndi_event_definition_t *ndi_event_defs;
int len;
uint_t i;
int rval;
ndi_event_cookie_t *cookie_list;
ndi_event_cookie_t *prev = NULL;
ASSERT(ndi_events);
ASSERT(handle);
/*
* binding must be performed during attach/detac
*/
if (!DEVI_IS_ATTACHING(handle->ndi_evthdl_dip) &&
!DEVI_IS_DETACHING(handle->ndi_evthdl_dip)) {
cmn_err(CE_WARN, "ndi_event_bind_set must be called within "
"attach or detach");
return (NDI_FAILURE);
}
/* bail out if ndi_event_set is outdated */
if (ndi_events->ndi_events_version != NDI_EVENTS_REV1) {
return (NDI_FAILURE);
}
ASSERT(ndi_events->ndi_event_defs);
ndi_event_defs = ndi_events->ndi_event_defs;
mutex_enter(&handle->ndi_evthdl_mutex);
mutex_enter(&handle->ndi_evthdl_cb_mutex);
/*
* Verify that all events in the event set are eligible
* for unbinding(ie. there are no outstanding callbacks).
* If any one of the events are ineligible, fail entire
* operation.
*/
for (i = 0; i < ndi_events->ndi_n_events; i++) {
cookie_list = handle->ndi_evthdl_cookie_list;
while (cookie_list != NULL) {
len = strlen(NDI_EVENT_NAME(cookie_list)) + 1;
if (strncmp(NDI_EVENT_NAME(cookie_list),
ndi_event_defs[i].ndi_event_name, len) == 0) {
ASSERT(cookie_list->callback_list == NULL);
if (cookie_list->callback_list) {
rval = NDI_FAILURE;
goto done;
}
break;
} else {
cookie_list = cookie_list->next_cookie;
}
}
}
/*
* remove all events found within the handle
* If an event is not found, this function will proceed as if the event
* was never specified.
*/
for (i = 0; i < ndi_events->ndi_n_events; i++) {
cookie_list = handle->ndi_evthdl_cookie_list;
prev = NULL;
while (cookie_list != NULL) {
len = strlen(NDI_EVENT_NAME(cookie_list)) + 1;
if (strncmp(NDI_EVENT_NAME(cookie_list),
ndi_event_defs[i].ndi_event_name, len) == 0) {
/*
* can not unbind an event definition with
* outstanding callbacks
*/
if (cookie_list->callback_list) {
rval = NDI_FAILURE;
goto done;
}
/* remove this cookie from the list */
if (prev != NULL) {
prev->next_cookie =
cookie_list->next_cookie;
} else {
handle->ndi_evthdl_cookie_list =
cookie_list->next_cookie;
}
/* adjust plevel counts */
if (NDI_EVENT_PLEVEL(cookie_list) ==
EPL_HIGHLEVEL) {
handle->ndi_evthdl_high_plevels--;
} else {
handle->ndi_evthdl_other_plevels--;
}
/* adjust cookie count */
handle->ndi_evthdl_n_events--;
/* free the cookie */
kmem_free(cookie_list,
sizeof (ndi_event_cookie_t));
cookie_list = handle->ndi_evthdl_cookie_list;
break;
} else {
prev = cookie_list;
cookie_list = cookie_list->next_cookie;
}
}
}
#ifdef NDI_EVENT_DEBUG
if (ndi_event_debug) {
ndi_event_dump_hdl(handle, "ndi_event_unbind_set");
}
#endif /* NDI_EVENT_DEBUG */
rval = NDI_SUCCESS;
done:
mutex_exit(&handle->ndi_evthdl_cb_mutex);
mutex_exit(&handle->ndi_evthdl_mutex);
return (rval);
}
/*
* ndi_event_retrieve_cookie():
* Return an event cookie for eventname if this nexus driver
* has defined the named event. The event cookie returned
* by this function is used to register callback handlers
* for the event.
*
* ndi_event_retrieve_cookie() is intended to be used in the
* nexus driver's bus_get_eventcookie busop routine.
*
* If the event is not defined by this bus nexus driver, and flag
* does not include NDI_EVENT_NOPASS, then ndi_event_retrieve_cookie()
* will pass the request up the device tree hierarchy by calling
* ndi_busop_get_eventcookie(9N).
* If the event is not defined by this bus nexus driver, and flag
* does include NDI_EVENT_NOPASS, ndi_event_retrieve_cookie()
* will return NDI_FAILURE. The caller may then determine what further
* action to take, such as using a different handle, passing the
* request up the device tree using ndi_busop_get_eventcookie(9N),
* or returning the failure to the caller, thus blocking the
* progress of the request up the tree.
*/
int
ndi_event_retrieve_cookie(ndi_event_hdl_t handle,
dev_info_t *rdip,
char *eventname,
ddi_eventcookie_t *cookiep,
uint_t flag)
{
struct ndi_event_hdl *ndi_event_hdl = (struct ndi_event_hdl *)handle;
int len;
ndi_event_cookie_t *cookie_list;
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
cookie_list = ndi_event_hdl->ndi_evthdl_cookie_list;
/*
* search the cookie list for the event name and return
* cookie if found.
*/
while (cookie_list != NULL) {
len = strlen(NDI_EVENT_NAME(cookie_list)) + 1;
if (strncmp(NDI_EVENT_NAME(cookie_list), eventname,
len) == 0) {
*cookiep = (ddi_eventcookie_t)cookie_list;
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NDI_SUCCESS);
}
cookie_list = cookie_list->next_cookie;
}
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
/*
* event was not found, pass up or return failure
*/
if ((flag & NDI_EVENT_NOPASS) == 0) {
return (ndi_busop_get_eventcookie(
ndi_event_hdl->ndi_evthdl_dip, rdip, eventname, cookiep));
} else {
return (NDI_FAILURE);
}
}
/*
* check whether this nexus defined this event and look up attributes
*/
static int
ndi_event_is_defined(ndi_event_hdl_t handle,
ddi_eventcookie_t cookie, int *attributes)
{
struct ndi_event_hdl *ndi_event_hdl = (struct ndi_event_hdl *)handle;
ndi_event_cookie_t *cookie_list;
ASSERT(mutex_owned(&handle->ndi_evthdl_mutex));
cookie_list = ndi_event_hdl->ndi_evthdl_cookie_list;
while (cookie_list != NULL) {
if (cookie_list == NDI_EVENT(cookie)) {
if (attributes)
*attributes =
NDI_EVENT_ATTRIBUTES(cookie_list);
return (NDI_SUCCESS);
}
cookie_list = cookie_list->next_cookie;
}
return (NDI_FAILURE);
}
/*
* ndi_event_add_callback(): adds an event callback registration
* to the event cookie defining this event.
*
* Refer also to bus_add_eventcall(9n) and ndi_busop_add_eventcall(9n).
*
* ndi_event_add_callback(9n) is intended to be used in
* the nexus driver's bus_add_eventcall(9n) busop function.
*
* If the event is not defined by this bus nexus driver,
* ndi_event_add_callback() will return NDI_FAILURE.
*/
int
ndi_event_add_callback(ndi_event_hdl_t handle, dev_info_t *child_dip,
ddi_eventcookie_t cookie,
void (*event_callback)(dev_info_t *,
ddi_eventcookie_t, void *arg, void *impldata),
void *arg,
uint_t flag,
ddi_callback_id_t *cb_id)
{
struct ndi_event_hdl *ndi_event_hdl = (struct ndi_event_hdl *)handle;
int km_flag = ((flag & NDI_NOSLEEP) ? KM_NOSLEEP : KM_SLEEP);
ndi_event_callbacks_t *cb;
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
/*
* if the event was not bound to this handle, return failure
*/
if (ndi_event_is_defined(handle, cookie, NULL) != NDI_SUCCESS) {
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NDI_FAILURE);
}
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
/*
* allocate space for a callback structure
*/
cb = kmem_zalloc(sizeof (ndi_event_callbacks_t), km_flag);
if (cb == NULL) {
return (NDI_FAILURE);
}
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
/* initialize callback structure */
cb->ndi_evtcb_dip = child_dip;
cb->ndi_evtcb_callback = event_callback;
cb->ndi_evtcb_arg = arg;
cb->ndi_evtcb_cookie = cookie;
cb->devname = (char *)ddi_driver_name(child_dip);
*cb_id = (ddi_callback_id_t)cb;
mutex_enter(&ndi_event_hdl->ndi_evthdl_cb_mutex);
/* add this callback structure to the list */
if (NDI_EVENT(cookie)->callback_list) {
cb->ndi_evtcb_next = NDI_EVENT(cookie)->callback_list;
NDI_EVENT(cookie)->callback_list->ndi_evtcb_prev = cb;
NDI_EVENT(cookie)->callback_list = cb;
} else {
NDI_EVENT(cookie)->callback_list = cb;
}
#ifdef NDI_EVENT_DEBUG
if (ndi_event_debug) {
ndi_event_dump_hdl(ndi_event_hdl, "ndi_event_add_callback");
}
#endif /* NDI_EVENT_DEBUG */
mutex_exit(&ndi_event_hdl->ndi_evthdl_cb_mutex);
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NDI_SUCCESS);
}
/*
* ndi_event_remove_callback():
*
* ndi_event_remove_callback() removes a callback that was
* previously registered using ndi_event_add_callback(9N).
* Refer also to bus_remove_eventcall(9n) and
* ndi_busop_remove_eventcall(9n).
* ndi_event_remove_callback(9n) is intended to be used in
* the nexus driver's bus_remove_eventcall (9n) busop function.
* If the event is not defined by this bus nexus driver,
* ndi_event_remove_callback() will return NDI_FAILURE.
*/
static void do_ndi_event_remove_callback(struct ndi_event_hdl *ndi_event_hdl,
ddi_callback_id_t cb_id);
int
ndi_event_remove_callback(ndi_event_hdl_t handle, ddi_callback_id_t cb_id)
{
struct ndi_event_hdl *ndi_event_hdl = (struct ndi_event_hdl *)handle;
ASSERT(cb_id);
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
mutex_enter(&ndi_event_hdl->ndi_evthdl_cb_mutex);
do_ndi_event_remove_callback(ndi_event_hdl, cb_id);
mutex_exit(&ndi_event_hdl->ndi_evthdl_cb_mutex);
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NDI_SUCCESS);
}
/*ARGSUSED*/
static void
do_ndi_event_remove_callback(struct ndi_event_hdl *ndi_event_hdl,
ddi_callback_id_t cb_id)
{
ndi_event_callbacks_t *cb = (ndi_event_callbacks_t *)cb_id;
ASSERT(cb);
ASSERT(mutex_owned(&ndi_event_hdl->ndi_evthdl_mutex));
ASSERT(mutex_owned(&ndi_event_hdl->ndi_evthdl_cb_mutex));
/* remove from callback linked list */
if (cb->ndi_evtcb_prev) {
cb->ndi_evtcb_prev->ndi_evtcb_next = cb->ndi_evtcb_next;
}
if (cb->ndi_evtcb_next) {
cb->ndi_evtcb_next->ndi_evtcb_prev = cb->ndi_evtcb_prev;
}
if (NDI_EVENT(cb->ndi_evtcb_cookie)->callback_list == cb) {
NDI_EVENT(cb->ndi_evtcb_cookie)->callback_list =
cb->ndi_evtcb_next;
}
kmem_free(cb, sizeof (ndi_event_callbacks_t));
}
/*
* ndi_event_run_callbacks() performs event callbacks for the event
* specified by cookie, if this is among those bound to the
* supplied handle.
* If the event is among those bound to the handle, none,
* some, or all of the handlers registered for the event
* will be called, according to the delivery attributes of
* the event.
* If the event attributes include NDI_EVENT_POST_TO_ALL
* (the default), all the handlers for the event will be
* called in an unspecified order.
* If the event attributes include NDI_EVENT_POST_TO_TGT, only
* the handlers (if any) registered by the driver identified by
* rdip will be called.
* If the event identified by cookie is not bound to the handle,
* NDI_FAILURE will be returned.
*/
int
ndi_event_run_callbacks(ndi_event_hdl_t handle, dev_info_t *child_dip,
ddi_eventcookie_t cookie, void *bus_impldata)
{
struct ndi_event_hdl *ndi_event_hdl = (struct ndi_event_hdl *)handle;
ndi_event_callbacks_t *next, *cb;
int attributes;
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
/* if this is not our event, fail */
if (ndi_event_is_defined(handle, cookie, &attributes) !=
NDI_SUCCESS) {
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NDI_FAILURE);
}
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
#ifdef NDI_EVENT_DEBUG
if (ndi_event_debug) {
cmn_err(CE_CONT, "ndi_event_run_callbacks:\n\t"
"producer dip=%p (%s%d): cookie = %p, name = %s\n",
(void *)ndi_event_hdl->ndi_evthdl_dip,
ddi_node_name(ndi_event_hdl->ndi_evthdl_dip),
ddi_get_instance(ndi_event_hdl->ndi_evthdl_dip),
(void *)cookie,
ndi_event_cookie_to_name(handle, cookie));
}
#endif /* #ifdef NDI_EVENT_DEBUG */
/*
* The callback handlers may call conversion functions. The conversion
* functions may hold the ndi_evthdl_mutex during execution. Thus, to
* avoid a recursive mutex problem, only the ndi_evthdl_cb_mutex is
* held. The ndi_evthdl_mutex is not held when running the callbacks.
*/
mutex_enter(&ndi_event_hdl->ndi_evthdl_cb_mutex);
/* perform callbacks */
next = NDI_EVENT(cookie)->callback_list;
while (next != NULL) {
cb = next;
next = next->ndi_evtcb_next;
ASSERT(cb->ndi_evtcb_cookie == cookie);
if (attributes == NDI_EVENT_POST_TO_TGT &&
child_dip != cb->ndi_evtcb_dip) {
continue;
}
cb->ndi_evtcb_callback(cb->ndi_evtcb_dip, cb->ndi_evtcb_cookie,
cb->ndi_evtcb_arg, bus_impldata);
#ifdef NDI_EVENT_DEBUG
if (ndi_event_debug) {
cmn_err(CE_CONT,
"\t\tconsumer dip=%p (%s%d)\n",
(void *)cb->ndi_evtcb_dip,
ddi_node_name(cb->ndi_evtcb_dip),
ddi_get_instance(cb->ndi_evtcb_dip));
}
#endif
}
mutex_exit(&ndi_event_hdl->ndi_evthdl_cb_mutex);
#ifdef NDI_EVENT_DEBUG
if (ndi_event_debug) {
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
ndi_event_dump_hdl(ndi_event_hdl, "ndi_event_run_callbacks");
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
}
#endif /* NDI_EVENT_DEBUG */
return (NDI_SUCCESS);
}
/*
* perform one callback for a specified cookie and just one target
*/
int
ndi_event_do_callback(ndi_event_hdl_t handle, dev_info_t *child_dip,
ddi_eventcookie_t cookie, void *bus_impldata)
{
struct ndi_event_hdl *ndi_event_hdl = (struct ndi_event_hdl *)handle;
ndi_event_callbacks_t *next, *cb;
int attributes;
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
/* if this is not our event, fail */
if (ndi_event_is_defined(handle, cookie, &attributes) !=
NDI_SUCCESS) {
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NDI_FAILURE);
}
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
#ifdef NDI_EVENT_DEBUG
if (ndi_event_debug) {
cmn_err(CE_CONT, "ndi_event_run_callbacks:\n\t"
"producer dip=%p (%s%d): cookie = %p, name = %s\n",
(void *)ndi_event_hdl->ndi_evthdl_dip,
ddi_node_name(ndi_event_hdl->ndi_evthdl_dip),
ddi_get_instance(ndi_event_hdl->ndi_evthdl_dip),
(void *)cookie,
ndi_event_cookie_to_name(handle, cookie));
}
#endif
/*
* we only grab the cb mutex because the callback handlers
* may call the conversion functions which would cause a recursive
* mutex problem
*/
mutex_enter(&ndi_event_hdl->ndi_evthdl_cb_mutex);
/* perform callbacks */
for (next = NDI_EVENT(cookie)->callback_list; next != NULL; ) {
cb = next;
next = next->ndi_evtcb_next;
if (cb->ndi_evtcb_dip == child_dip) {
cb->ndi_evtcb_callback(cb->ndi_evtcb_dip,
cb->ndi_evtcb_cookie, cb->ndi_evtcb_arg,
bus_impldata);
#ifdef NDI_EVENT_DEBUG
if (ndi_event_debug) {
cmn_err(CE_CONT,
"\t\tconsumer dip=%p (%s%d)\n",
(void *)cb->ndi_evtcb_dip,
ddi_node_name(cb->ndi_evtcb_dip),
ddi_get_instance(cb->ndi_evtcb_dip));
}
#endif
break;
}
}
mutex_exit(&ndi_event_hdl->ndi_evthdl_cb_mutex);
#ifdef NDI_EVENT_DEBUG
if (ndi_event_debug) {
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
ndi_event_dump_hdl(ndi_event_hdl, "ndi_event_run_callbacks");
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
}
#endif /* NDI_EVENT_DEBUG */
return (NDI_SUCCESS);
}
/*
* ndi_event_tag_to_cookie: utility function to find an event cookie
* given an event tag
*/
ddi_eventcookie_t
ndi_event_tag_to_cookie(ndi_event_hdl_t handle, int event_tag)
{
struct ndi_event_hdl *ndi_event_hdl = (struct ndi_event_hdl *)handle;
ndi_event_cookie_t *list;
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
list = ndi_event_hdl->ndi_evthdl_cookie_list;
while (list != NULL) {
if (NDI_EVENT_TAG(list) == event_tag) {
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return ((ddi_eventcookie_t)list);
}
list = list->next_cookie;
}
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NULL);
}
/*
* ndi_event_cookie_to_tag: utility function to find a event tag
* given an event_cookie
*/
int
ndi_event_cookie_to_tag(ndi_event_hdl_t handle, ddi_eventcookie_t cookie)
{
struct ndi_event_hdl *ndi_event_hdl = (struct ndi_event_hdl *)handle;
ndi_event_cookie_t *list;
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
list = ndi_event_hdl->ndi_evthdl_cookie_list;
while (list != NULL) {
if ((ddi_eventcookie_t)list == cookie) {
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NDI_EVENT_TAG(list));
}
list = list->next_cookie;
}
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NDI_FAILURE);
}
/*
* ndi_event_cookie_to_name: utility function to find an event name
* given an event_cookie
*/
char *
ndi_event_cookie_to_name(ndi_event_hdl_t handle, ddi_eventcookie_t cookie)
{
struct ndi_event_hdl *ndi_event_hdl = (struct ndi_event_hdl *)handle;
ndi_event_cookie_t *list;
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
list = ndi_event_hdl->ndi_evthdl_cookie_list;
while (list != NULL) {
if (list == NDI_EVENT(cookie)) {
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NDI_EVENT_NAME(list));
}
list = list->next_cookie;
}
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NULL);
}
/*
* ndi_event_tag_to_name: utility function to find an event name
* given an event tag
*/
char *
ndi_event_tag_to_name(ndi_event_hdl_t handle, int event_tag)
{
struct ndi_event_hdl *ndi_event_hdl = (struct ndi_event_hdl *)handle;
ndi_event_cookie_t *list;
mutex_enter(&ndi_event_hdl->ndi_evthdl_mutex);
list = ndi_event_hdl->ndi_evthdl_cookie_list;
while (list) {
if (NDI_EVENT_TAG(list) == event_tag) {
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NDI_EVENT_NAME(list));
}
list = list->next_cookie;
}
mutex_exit(&ndi_event_hdl->ndi_evthdl_mutex);
return (NULL);
}
#ifdef NDI_EVENT_DEBUG
void
ndi_event_dump_hdl(struct ndi_event_hdl *hdl, char *location)
{
ndi_event_callbacks_t *next;
ndi_event_cookie_t *list;
ASSERT(mutex_owned(&hdl->ndi_evthdl_mutex));
list = hdl->ndi_evthdl_cookie_list;
cmn_err(CE_CONT, "%s: event handle (%p): dip = %p (%s%d)\n",
location, (void *)hdl, (void *)hdl->ndi_evthdl_dip,
ddi_node_name(hdl->ndi_evthdl_dip),
ddi_get_instance(hdl->ndi_evthdl_dip));
cmn_err(CE_CONT, "\thigh=%d other=%d n=%d\n",
hdl->ndi_evthdl_high_plevels, hdl->ndi_evthdl_other_plevels,
hdl->ndi_evthdl_n_events);
cmn_err(CE_CONT, "\tevent cookies:\n");
while (list) {
cmn_err(CE_CONT, "\t\ttag=%d name=%s p=%d a=%x dd=%p\n",
NDI_EVENT_TAG(list), NDI_EVENT_NAME(list),
NDI_EVENT_PLEVEL(list), NDI_EVENT_ATTRIBUTES(list),
(void *)NDI_EVENT_DDIP(list));
cmn_err(CE_CONT, "\t\tcallbacks:\n");
for (next = list->callback_list; next != NULL;
next = next->ndi_evtcb_next) {
cmn_err(CE_CONT,
"\t\t dip=%p (%s%d) cookie=%p arg=%p\n",
(void*)next->ndi_evtcb_dip,
ddi_driver_name(next->ndi_evtcb_dip),
ddi_get_instance(next->ndi_evtcb_dip),
(void *)next->ndi_evtcb_cookie,
next->ndi_evtcb_arg);
}
list = list->next_cookie;
}
cmn_err(CE_CONT, "\n");
}
#endif
int
ndi_dev_is_prom_node(dev_info_t *dip)
{
return (DEVI(dip)->devi_node_class == DDI_NC_PROM);
}
int
ndi_dev_is_pseudo_node(dev_info_t *dip)
{
/*
* NOTE: this does NOT mean the pseudo branch of the device tree,
* it means the node was created by software (DEVI_SID_NODEID ||
* DEVI_PSEUDO_NODEID || DEVI_SID_HIDDEN_NODEID) instead of being
* generated from a PROM node.
*/
return (DEVI(dip)->devi_node_class == DDI_NC_PSEUDO);
}
int
ndi_dev_is_persistent_node(dev_info_t *dip)
{
return ((DEVI(dip)->devi_node_attributes & DDI_PERSISTENT) != 0);
}
int
ndi_dev_is_hidden_node(dev_info_t *dip)
{
return ((DEVI(dip)->devi_node_attributes & DDI_HIDDEN_NODE) != 0);
}
int
ndi_dev_is_hotplug_node(dev_info_t *dip)
{
return ((DEVI(dip)->devi_node_attributes & DDI_HOTPLUG_NODE) != 0);
}
void
ndi_devi_set_hidden(dev_info_t *dip)
{
DEVI(dip)->devi_node_attributes |= DDI_HIDDEN_NODE;
}
void
ndi_devi_clr_hidden(dev_info_t *dip)
{
DEVI(dip)->devi_node_attributes &= ~DDI_HIDDEN_NODE;
}
int
i_ndi_dev_is_auto_assigned_node(dev_info_t *dip)
{
return ((DEVI(dip)->devi_node_attributes &
DDI_AUTO_ASSIGNED_NODEID) != 0);
}
void
i_ndi_set_node_class(dev_info_t *dip, ddi_node_class_t c)
{
DEVI(dip)->devi_node_class = c;
}
ddi_node_class_t
i_ndi_get_node_class(dev_info_t *dip)
{
return (DEVI(dip)->devi_node_class);
}
void
i_ndi_set_node_attributes(dev_info_t *dip, int p)
{
DEVI(dip)->devi_node_attributes = p;
}
int
i_ndi_get_node_attributes(dev_info_t *dip)
{
return (DEVI(dip)->devi_node_attributes);
}
void
i_ndi_set_nodeid(dev_info_t *dip, int n)
{
DEVI(dip)->devi_nodeid = n;
}
void
ndi_set_acc_fault(ddi_acc_handle_t ah)
{
i_ddi_acc_set_fault(ah);
}
void
ndi_clr_acc_fault(ddi_acc_handle_t ah)
{
i_ddi_acc_clr_fault(ah);
}
void
ndi_set_dma_fault(ddi_dma_handle_t dh)
{
i_ddi_dma_set_fault(dh);
}
void
ndi_clr_dma_fault(ddi_dma_handle_t dh)
{
i_ddi_dma_clr_fault(dh);
}
/*
* The default fault-handler, called when the event posted by
* ddi_dev_report_fault() reaches rootnex.
*/
static void
i_ddi_fault_handler(dev_info_t *dip, struct ddi_fault_event_data *fedp)
{
ASSERT(fedp);
mutex_enter(&(DEVI(dip)->devi_lock));
if (!DEVI_IS_DEVICE_OFFLINE(dip)) {
switch (fedp->f_impact) {
case DDI_SERVICE_LOST:
DEVI_SET_DEVICE_DOWN(dip);
break;
case DDI_SERVICE_DEGRADED:
DEVI_SET_DEVICE_DEGRADED(dip);
break;
case DDI_SERVICE_UNAFFECTED:
default:
break;
case DDI_SERVICE_RESTORED:
DEVI_SET_DEVICE_UP(dip);
break;
}
}
mutex_exit(&(DEVI(dip)->devi_lock));
}
/*
* The default fault-logger, called when the event posted by
* ddi_dev_report_fault() reaches rootnex.
*/
/*ARGSUSED*/
static void
i_ddi_fault_logger(dev_info_t *rdip, struct ddi_fault_event_data *fedp)
{
ddi_devstate_t newstate;
const char *action;
const char *servstate;
const char *location;
int bad;
int changed;
int level;
int still;
ASSERT(fedp);
bad = 0;
switch (fedp->f_location) {
case DDI_DATAPATH_FAULT:
location = "in datapath to";
break;
case DDI_DEVICE_FAULT:
location = "in";
break;
case DDI_EXTERNAL_FAULT:
location = "external to";
break;
default:
location = "somewhere near";
bad = 1;
break;
}
newstate = ddi_get_devstate(fedp->f_dip);
switch (newstate) {
case DDI_DEVSTATE_OFFLINE:
servstate = "unavailable";
break;
case DDI_DEVSTATE_DOWN:
servstate = "unavailable";
break;
case DDI_DEVSTATE_QUIESCED:
servstate = "suspended";
break;
case DDI_DEVSTATE_DEGRADED:
servstate = "degraded";
break;
default:
servstate = "available";
break;
}
changed = (newstate != fedp->f_oldstate);
level = (newstate < fedp->f_oldstate) ? CE_WARN : CE_NOTE;
switch (fedp->f_impact) {
case DDI_SERVICE_LOST:
case DDI_SERVICE_DEGRADED:
case DDI_SERVICE_UNAFFECTED:
/* fault detected; service [still] <servstate> */
action = "fault detected";
still = !changed;
break;
case DDI_SERVICE_RESTORED:
if (newstate != DDI_DEVSTATE_UP) {
/* fault cleared; service still <servstate> */
action = "fault cleared";
still = 1;
} else if (changed) {
/* fault cleared; service <servstate> */
action = "fault cleared";
still = 0;
} else {
/* no fault; service <servstate> */
action = "no fault";
still = 0;
}
break;
default:
bad = 1;
break;
}
cmn_err(level, "!%s%d: %s %s device; service %s%s"+(bad|changed),
ddi_driver_name(fedp->f_dip), ddi_get_instance(fedp->f_dip),
bad ? "invalid report of fault" : action,
location, still ? "still " : "", servstate);
cmn_err(level, "!%s%d: %s"+(bad|changed),
ddi_driver_name(fedp->f_dip), ddi_get_instance(fedp->f_dip),
fedp->f_message);
}
/*
* Platform-settable pointers to fault handler and logger functions.
* These are called by the default rootnex event-posting code when
* a fault event reaches rootnex.
*/
void (*plat_fault_handler)(dev_info_t *, struct ddi_fault_event_data *) =
i_ddi_fault_handler;
void (*plat_fault_logger)(dev_info_t *, struct ddi_fault_event_data *) =
i_ddi_fault_logger;
/*
* Rootnex event definitions ...
*/
enum rootnex_event_tags {
ROOTNEX_FAULT_EVENT
};
static ndi_event_hdl_t rootnex_event_hdl;
static ndi_event_definition_t rootnex_event_set[] = {
{
ROOTNEX_FAULT_EVENT,
DDI_DEVI_FAULT_EVENT,
EPL_INTERRUPT,
NDI_EVENT_POST_TO_ALL
}
};
static ndi_event_set_t rootnex_events = {
NDI_EVENTS_REV1,
sizeof (rootnex_event_set) / sizeof (rootnex_event_set[0]),
rootnex_event_set
};
/*
* Initialize rootnex event handle
*/
void
i_ddi_rootnex_init_events(dev_info_t *dip)
{
if (ndi_event_alloc_hdl(dip, (ddi_iblock_cookie_t)(LOCK_LEVEL-1),
&rootnex_event_hdl, NDI_SLEEP) == NDI_SUCCESS) {
if (ndi_event_bind_set(rootnex_event_hdl,
&rootnex_events, NDI_SLEEP) != NDI_SUCCESS) {
(void) ndi_event_free_hdl(rootnex_event_hdl);
rootnex_event_hdl = NULL;
}
}
}
/*
* Event-handling functions for rootnex
* These provide the standard implementation of fault handling
*/
/*ARGSUSED*/
int
i_ddi_rootnex_get_eventcookie(dev_info_t *dip, dev_info_t *rdip,
char *eventname, ddi_eventcookie_t *cookiep)
{
if (rootnex_event_hdl == NULL)
return (NDI_FAILURE);
return (ndi_event_retrieve_cookie(rootnex_event_hdl, rdip, eventname,
cookiep, NDI_EVENT_NOPASS));
}
/*ARGSUSED*/
int
i_ddi_rootnex_add_eventcall(dev_info_t *dip, dev_info_t *rdip,
ddi_eventcookie_t eventid, void (*handler)(dev_info_t *dip,
ddi_eventcookie_t event, void *arg, void *impl_data), void *arg,
ddi_callback_id_t *cb_id)
{
if (rootnex_event_hdl == NULL)
return (NDI_FAILURE);
return (ndi_event_add_callback(rootnex_event_hdl, rdip,
eventid, handler, arg, NDI_SLEEP, cb_id));
}
/*ARGSUSED*/
int
i_ddi_rootnex_remove_eventcall(dev_info_t *dip, ddi_callback_id_t cb_id)
{
if (rootnex_event_hdl == NULL)
return (NDI_FAILURE);
return (ndi_event_remove_callback(rootnex_event_hdl, cb_id));
}
/*ARGSUSED*/
int
i_ddi_rootnex_post_event(dev_info_t *dip, dev_info_t *rdip,
ddi_eventcookie_t eventid, void *impl_data)
{
int tag;
if (rootnex_event_hdl == NULL)
return (NDI_FAILURE);
tag = ndi_event_cookie_to_tag(rootnex_event_hdl, eventid);
if (tag == ROOTNEX_FAULT_EVENT) {
(*plat_fault_handler)(rdip, impl_data);
(*plat_fault_logger)(rdip, impl_data);
}
return (ndi_event_run_callbacks(rootnex_event_hdl, rdip,
eventid, impl_data));
}
/*
* ndi_set_bus_private/ndi_get_bus_private:
* Get/set device bus private data in devinfo.
*/
void
ndi_set_bus_private(dev_info_t *dip, boolean_t up, uint32_t port_type,
void *data)
{
if (up) {
DEVI(dip)->devi_bus.port_up.info.port.type = port_type;
DEVI(dip)->devi_bus.port_up.priv_p = data;
} else {
DEVI(dip)->devi_bus.port_down.info.port.type = port_type;
DEVI(dip)->devi_bus.port_down.priv_p = data;
}
}
void *
ndi_get_bus_private(dev_info_t *dip, boolean_t up)
{
if (up)
return (DEVI(dip)->devi_bus.port_up.priv_p);
else
return (DEVI(dip)->devi_bus.port_down.priv_p);
}
boolean_t
ndi_port_type(dev_info_t *dip, boolean_t up, uint32_t port_type)
{
if (up) {
return ((DEVI(dip)->devi_bus.port_up.info.port.type) ==
port_type);
} else {
return ((DEVI(dip)->devi_bus.port_down.info.port.type) ==
port_type);
}
}
/* Interfaces for 'self' to set/get a child's flavor */
void
ndi_flavor_set(dev_info_t *child, ndi_flavor_t child_flavor)
{
DEVI(child)->devi_flavor = child_flavor;
}
ndi_flavor_t
ndi_flavor_get(dev_info_t *child)
{
return (DEVI(child)->devi_flavor);
}
/*
* Interfaces to maintain flavor-specific private data of flavored
* children of self.
*
* The flavor count always includes the default (0) vanilla flavor,
* but storage for the vanilla flavor data pointer is in the same
* place that ddi_[sg]et_driver_private uses, so the flavorv
* storage is just for flavors 1..{nflavors-1}.
*/
void
ndi_flavorv_alloc(dev_info_t *self, int nflavors)
{
ASSERT(nflavors > 0 && (DEVI(self)->devi_flavorv == NULL ||
nflavors == DEVI(self)->devi_flavorv_n));
if (nflavors <= 1 || (DEVI(self)->devi_flavorv)) {
return;
}
DEVI(self)->devi_flavorv =
kmem_zalloc((nflavors - 1) * sizeof (void *), KM_SLEEP);
DEVI(self)->devi_flavorv_n = nflavors;
}
void
ndi_flavorv_set(dev_info_t *self, ndi_flavor_t child_flavor, void *v)
{
if (child_flavor == NDI_FLAVOR_VANILLA) {
ddi_set_driver_private(self, v);
} else {
ASSERT(child_flavor < DEVI(self)->devi_flavorv_n &&
DEVI(self)->devi_flavorv != NULL);
if (child_flavor > DEVI(self)->devi_flavorv_n ||
DEVI(self)->devi_flavorv == NULL) {
return;
}
DEVI(self)->devi_flavorv[child_flavor - 1] = v;
}
}
void *
ndi_flavorv_get(dev_info_t *self, ndi_flavor_t child_flavor)
{
if (child_flavor == NDI_FLAVOR_VANILLA) {
return (ddi_get_driver_private(self));
} else {
ASSERT(child_flavor < DEVI(self)->devi_flavorv_n &&
DEVI(self)->devi_flavorv != NULL);
if (child_flavor > DEVI(self)->devi_flavorv_n ||
DEVI(self)->devi_flavorv == NULL) {
return (NULL);
}
return (DEVI(self)->devi_flavorv[child_flavor - 1]);
}
}