void
sctp_update_dce(sctp_t *sctp)
{
sctp_faddr_t *fp;
sctp_stack_t *sctps = sctp->sctp_sctps;
iulp_t uinfo;
ip_stack_t *ipst = sctps->sctps_netstack->netstack_ip;
uint_t ifindex;
for (fp = sctp->sctp_faddrs; fp != NULL; fp = fp->next) {
bzero(&uinfo, sizeof (uinfo));
/*
* Only record the PMTU for this faddr if we actually have
* done discovery. This prevents initialized default from
* clobbering any real info that IP may have.
*/
if (fp->pmtu_discovered) {
if (fp->isv4) {
uinfo.iulp_mtu = fp->sfa_pmss +
sctp->sctp_hdr_len;
} else {
uinfo.iulp_mtu = fp->sfa_pmss +
sctp->sctp_hdr6_len;
}
}
if (sctps->sctps_rtt_updates != 0 &&
fp->rtt_updates >= sctps->sctps_rtt_updates) {
/*
* dce_update_uinfo() merges these values with the
* old values.
*/
uinfo.iulp_rtt = TICK_TO_MSEC(fp->srtt);
uinfo.iulp_rtt_sd = TICK_TO_MSEC(fp->rttvar);
fp->rtt_updates = 0;
}
ifindex = 0;
if (IN6_IS_ADDR_LINKSCOPE(&fp->faddr)) {
/*
* If we are going to create a DCE we'd better have
* an ifindex
*/
if (fp->ixa->ixa_nce != NULL) {
ifindex = fp->ixa->ixa_nce->nce_common->
ncec_ill->ill_phyint->phyint_ifindex;
} else {
continue;
}
}
(void) dce_update_uinfo(&fp->faddr, ifindex, &uinfo, ipst);
}
}
//------------------------------------------------------------------------------
//
// Function: OEMGetTickCount
//
// This returns the number of milliseconds that have elapsed since Windows
// CE was started. If the system timer period is 1ms the function simply
// returns the value of CurMSec. If the system timer period is greater then
// 1 ms, the HiRes offset is added to the value of CurMSec.
//
UINT32
OEMGetTickCount(
)
{
UINT64 baseCounts;
UINT32 offset;
// This code adjusts the accuracy of the returned value to the nearest
// MSec when the system tick exceeds 1 ms. The following code checks if
// a system timer interrupt occurred between reading the CurMSec value
// and the call to fetch the HiResTicksSinceSysTick. If so, the value of
// CurMSec and Offset is re-read, with the certainty that a system timer
// interrupt will not occur again.
do
{
baseCounts = g_oalTimerContext.curCounts;
offset = OALTimerGetCount() - g_oalTimerContext.base;
}
while (baseCounts != g_oalTimerContext.curCounts);
// Update CurMSec (kernel uses both CurMSec and GetTickCount() at different places) and return msec tick count
CurMSec = (UINT32)TICK_TO_MSEC(baseCounts + offset);
return CurMSec;
}
//------------------------------------------------------------------------------
//
// Function: OALGetTickCount
//
// This function returns number of 1 ms ticks which elapsed since system boot
// or reset (absolute value isn't important). The counter can overflow but
// overflow period should not be shorter then approx 30 seconds. Function
// is used in system boot so it must work before interrupt subsystem
// is active.
//
UINT32
OALGetTickCount(
)
{
UINT64 tickCount = OALTimerGetReg(&g_pTimerRegs->TCRR);
// Returns number of 1 msec ticks
return (UINT32) TICK_TO_MSEC(tickCount);
}
/*
* Poll for an input event.
*
* timo is measured in ticks
*/
int
t_kspoll(TIUSER *tiptr, int timo, int waitflg, int *events)
{
file_t *fp;
vnode_t *vp;
klwp_t *lwp = ttolwp(curthread);
clock_t timout; /* milliseconds */
int error;
u_char pri;
int pflag;
rval_t rval;
fp = tiptr->fp;
vp = fp->f_vnode;
if (events == NULL || ((waitflg & READWAIT) == 0))
return (EINVAL);
/* Convert from ticks to milliseconds */
if (timo < 0)
timout = -1;
else
timout = TICK_TO_MSEC(timo);
/*
* Indicate that the lwp is not to be stopped while doing
* this network traffic. This is to avoid deadlock while
* debugging a process via /proc.
*/
if (lwp != NULL)
lwp->lwp_nostop++;
if (waitflg & NOINTR)
pflag = MSG_ANY | MSG_HOLDSIG;
else
pflag = MSG_ANY;
pri = 0;
error = kstrgetmsg(vp, NULL, NULL, &pri, &pflag, timout, &rval);
if (lwp != NULL)
lwp->lwp_nostop--;
/* Set the return *events. */
if (error != 0) {
if (error == ETIME) {
*events = 0;
error = 0;
}
return (error);
}
*events = 1;
return (0);
}
/*
* Send failure event. Message is expected to have message header still
* in place, data follows in subsequent mblk's.
*/
static void
sctp_sendfail(sctp_t *sctp, mblk_t *msghdr, uint16_t flags, int error)
{
struct sctp_send_failed *sfp;
mblk_t *mp;
sctp_msg_hdr_t *smh;
/* Allocate a mblk for the notification header */
if ((mp = allocb(sizeof (*sfp), BPRI_MED)) == NULL) {
/* give up */
freemsg(msghdr);
return;
}
smh = (sctp_msg_hdr_t *)msghdr->b_rptr;
sfp = (struct sctp_send_failed *)mp->b_rptr;
sfp->ssf_type = SCTP_SEND_FAILED;
sfp->ssf_flags = flags;
sfp->ssf_length = smh->smh_msglen + sizeof (*sfp);
sfp->ssf_error = error;
sfp->ssf_assoc_id = 0;
bzero(&sfp->ssf_info, sizeof (sfp->ssf_info));
sfp->ssf_info.sinfo_stream = smh->smh_sid;
sfp->ssf_info.sinfo_flags = smh->smh_flags;
sfp->ssf_info.sinfo_ppid = smh->smh_ppid;
sfp->ssf_info.sinfo_context = smh->smh_context;
sfp->ssf_info.sinfo_timetolive = TICK_TO_MSEC(smh->smh_ttl);
mp->b_wptr = (uchar_t *)(sfp + 1);
mp->b_cont = msghdr->b_cont;
freeb(msghdr);
sctp_notify(sctp, mp, sfp->ssf_length);
}
static uint_t
ntwdt_cyclic_softint(caddr_t arg)
{
/*LINTED E_BAD_PTR_CAST_ALIGN*/
ntwdt_state_t *ntwdt_ptr = (ntwdt_state_t *)arg;
ntwdt_runstate_t *ntwdt_state;
ntwdt_state = ntwdt_ptr->ntwdt_run_state;
mutex_enter(&ntwdt_state->ntwdt_runstate_mutex);
if ((ntwdt_state->ntwdt_watchdog_flags & NTWDT_FLAG_SKIP_CYCLIC) != 0) {
ntwdt_state->ntwdt_watchdog_flags &= ~NTWDT_FLAG_SKIP_CYCLIC;
goto end;
}
if ((ntwdt_state->ntwdt_timer_running == 0) ||
(ntwdt_ptr->ntwdt_cycl_id == CYCLIC_NONE) ||
(ntwdt_state->ntwdt_watchdog_enabled == 0)) {
goto end;
}
NTWDT_DBG(NTWDT_DBG_IOCTL, ("cyclic_softint: %d"
"ddi_get_lbolt64(): %d\n", ntwdt_state->ntwdt_watchdog_timeout,
(int)TICK_TO_MSEC(ddi_get_lbolt64())));
/*
* Decrement the virtual watchdog timer and check if it has expired.
*/
ntwdt_state->ntwdt_time_remaining -= NTWDT_DECREMENT_INTERVAL;
if (ntwdt_state->ntwdt_time_remaining == 0) {
cmn_err(CE_WARN, "application-watchdog expired");
ntwdt_state->ntwdt_watchdog_expired = 1;
if (ntwdt_state->ntwdt_reset_enabled != 0) {
/*
* The user wants to reset the system.
*/
mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
NTWDT_DBG(NTWDT_DBG_NTWDT, ("recovery being done"));
ntwdt_enforce_timeout();
} else {
NTWDT_DBG(NTWDT_DBG_NTWDT, ("no recovery being done"));
ntwdt_state->ntwdt_watchdog_enabled = 0;
}
/*
* Schedule Callout to stop the cyclic.
*/
(void) timeout(ntwdt_stop_timer_lock, ntwdt_ptr, 0);
} else {
_NOTE(EMPTY)
NTWDT_DBG(NTWDT_DBG_NTWDT, ("time remaining in AWDT: %d secs",
(int)TICK_TO_MSEC(ntwdt_state->ntwdt_time_remaining)));
}
end:
mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
return (DDI_INTR_CLAIMED);
}
/*ARGSUSED*/
static int
ntwdt_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp,
int *rvalp)
{
int instance = getminor(dev);
int retval = 0;
ntwdt_state_t *ntwdt_ptr = NULL;
ntwdt_runstate_t *ntwdt_state;
lom_dogstate_t lom_dogstate;
lom_dogctl_t lom_dogctl;
uint32_t lom_dogtime;
if ((ntwdt_ptr = getstate(instance)) == NULL) {
return (ENXIO);
}
ntwdt_state = ntwdt_ptr->ntwdt_run_state;
switch (cmd) {
case LOMIOCDOGSTATE:
mutex_enter(&ntwdt_state->ntwdt_runstate_mutex);
lom_dogstate.reset_enable = ntwdt_state->ntwdt_reset_enabled;
lom_dogstate.dog_enable = ntwdt_state->ntwdt_watchdog_enabled;
lom_dogstate.dog_timeout = ntwdt_state->ntwdt_watchdog_timeout;
mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
if (ddi_copyout((caddr_t)&lom_dogstate, (caddr_t)arg,
sizeof (lom_dogstate_t), mode) != 0) {
retval = EFAULT;
}
break;
case LOMIOCDOGCTL:
if (ddi_copyin((caddr_t)arg, (caddr_t)&lom_dogctl,
sizeof (lom_dogctl_t), mode) != 0) {
retval = EFAULT;
break;
}
NTWDT_DBG(NTWDT_DBG_IOCTL, ("reset_enable: %d, and dog_enable: "
"%d, watchdog_timeout %d", lom_dogctl.reset_enable,
lom_dogctl.dog_enable,
ntwdt_state->ntwdt_watchdog_timeout));
/*
* ignore request to enable reset while disabling watchdog.
*/
if (!lom_dogctl.dog_enable && lom_dogctl.reset_enable) {
NTWDT_DBG(NTWDT_DBG_IOCTL, ("invalid combination of "
"reset_enable: %d, and dog_enable: %d",
lom_dogctl.reset_enable,
lom_dogctl.dog_enable));
retval = EINVAL;
break;
}
mutex_enter(&ntwdt_state->ntwdt_runstate_mutex);
if (ntwdt_state->ntwdt_watchdog_timeout == 0) {
/*
* the LOMIOCDOGTIME has never been used to setup
* a valid timeout.
*/
NTWDT_DBG(NTWDT_DBG_IOCTL, ("timeout has not been set"
"watchdog_timeout: %d",
ntwdt_state->ntwdt_watchdog_timeout));
retval = EINVAL;
goto end;
}
/*
* Store the user specified state in the softstate.
*/
ntwdt_state->ntwdt_reset_enabled = lom_dogctl.reset_enable;
ntwdt_state->ntwdt_watchdog_enabled = lom_dogctl.dog_enable;
if (ntwdt_state->ntwdt_watchdog_enabled != 0) {
/*
* The user wants to enable the watchdog.
* Arm the watchdog and start the cyclic.
*/
ntwdt_arm_watchdog(ntwdt_state);
if (ntwdt_state->ntwdt_timer_running == 0) {
ntwdt_start_timer(ntwdt_ptr);
}
NTWDT_DBG(NTWDT_DBG_IOCTL, ("AWDT is enabled"));
} else {
/*
* The user wants to disable the watchdog.
*/
if (ntwdt_state->ntwdt_timer_running != 0) {
ntwdt_stop_timer(ntwdt_ptr);
}
NTWDT_DBG(NTWDT_DBG_IOCTL, ("AWDT is disabled"));
}
mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
break;
case LOMIOCDOGTIME:
if (ddi_copyin((caddr_t)arg, (caddr_t)&lom_dogtime,
sizeof (uint32_t), mode) != 0) {
retval = EFAULT;
break;
}
NTWDT_DBG(NTWDT_DBG_IOCTL, ("user set timeout: %d",
lom_dogtime));
/*
* Ensure specified timeout is valid.
*/
if ((lom_dogtime == 0) ||
(lom_dogtime > (uint32_t)NTWDT_MAX_TIMEOUT)) {
retval = EINVAL;
NTWDT_DBG(NTWDT_DBG_IOCTL, ("user set invalid "
"timeout: %d", (int)TICK_TO_MSEC(lom_dogtime)));
break;
}
mutex_enter(&ntwdt_state->ntwdt_runstate_mutex);
ntwdt_state->ntwdt_watchdog_timeout = lom_dogtime;
/*
* If awdt is currently running, re-arm it with the
* newly-specified timeout value.
*/
if (ntwdt_state->ntwdt_timer_running != 0) {
ntwdt_arm_watchdog(ntwdt_state);
}
mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
break;
case LOMIOCDOGPAT:
/*
* Allow user to pat the watchdog timer.
*/
NTWDT_DBG(NTWDT_DBG_IOCTL, ("DOGPAT is invoked"));
mutex_enter(&ntwdt_state->ntwdt_runstate_mutex);
/*
* If awdt is not enabled or underlying cyclic is not
* running, exit.
*/
if (!(ntwdt_state->ntwdt_watchdog_enabled &&
ntwdt_state->ntwdt_timer_running)) {
NTWDT_DBG(NTWDT_DBG_IOCTL, ("PAT: AWDT not enabled"));
goto end;
}
if (ntwdt_state->ntwdt_watchdog_expired == 0) {
/*
* re-arm the awdt.
*/
ntwdt_arm_watchdog(ntwdt_state);
NTWDT_DBG(NTWDT_DBG_IOCTL, ("AWDT patted, "
"remainning seconds: %d",
ntwdt_state->ntwdt_time_remaining));
}
mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
break;
default:
retval = EINVAL;
break;
}
return (retval);
end:
mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
return (retval);
}
//------------------------------------------------------------------------------
//
// Function: OALTimerIntrHandler
//
// This function implement timer interrupt handler. It is called from common
// ARM interrupt handler.
//
UINT32 OALTimerIntrHandler()
{
UINT32 count;
INT32 period, delta;
UINT32 sysIntr = SYSINTR_NOP;
// allow bsp to process timer interrupt first
sysIntr = OALTickTimerIntr();
if (sysIntr != SYSINTR_NOP) return sysIntr;
// Clear interrupt
OALTimerSetReg(&g_pTimerRegs->TISR, GPTIMER_TIER_MATCH);
// How far from interrupt we are?
count = OALTimerGetCount();
delta = count - g_oalTimerContext.match;
// If delta is negative, timer fired for some reason
// To be safe, reprogram the timer for minimum delta
if (delta < 0)
{
delta = 0;
goto cleanUp;
}
#ifdef OAL_ILTIMING
if (g_oalILT.active)
{
g_oalILT.isrTime1 = delta;
}
#endif
// Find how long period was
period = count - g_oalTimerContext.base;
g_oalTimerContext.curCounts += period;
g_oalTimerContext.base += period;
// Calculate actual CurMSec
CurMSec = (UINT32) TICK_TO_MSEC(g_oalTimerContext.curCounts);
OALLED(LED_IDX_TIMER, CurMSec >> 10);
// Reschedule?
delta = dwReschedTime - CurMSec;
if (delta <= 0)
{
sysIntr = SYSINTR_RESCHED;
delta = g_oalTimerContext.maxPeriodMSec;
}
cleanUp:
// Set new period
UpdatePeriod(delta);
#ifdef OAL_ILTIMING
if (g_oalILT.active) {
if (--g_oalILT.counter == 0) {
sysIntr = SYSINTR_TIMING;
g_oalILT.counter = g_oalILT.counterSet;
g_oalILT.isrTime2 = 0;
}
}
#endif
return sysIntr;
}
