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[SPARC64]: Handle LDC resets properly in domain-services driver.

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Reset the handshake and per-capability state so that when the
link comes back up we'll renegotiate the DS version and then
reregister all of the services.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2007-07-17 23:12:20 -07:00
parent 6160f63518
commit 8a2950cce6
1 changed files with 19 additions and 0 deletions
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19
arch/sparc64/kernel/ds.c
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@ -1013,6 +1013,19 @@ static void ds_up(struct ds_info *dp)
dp->hs_state = DS_HS_START;
}
static void ds_reset(struct ds_info *dp)
{
int i;
dp->hs_state = 0;
for (i = 0; i < ARRAY_SIZE(ds_states); i++) {
struct ds_cap_state *cp = &ds_states[i];
cp->state = CAP_STATE_UNKNOWN;
}
}
static void ds_event(void *arg, int event)
{
struct ds_info *dp = arg;
@ -1028,6 +1041,12 @@ static void ds_event(void *arg, int event)
return;
}
if (event == LDC_EVENT_RESET) {
ds_reset(dp);
spin_unlock_irqrestore(&ds_lock, flags);
return;
}
if (event != LDC_EVENT_DATA_READY) {
printk(KERN_WARNING PFX "Unexpected LDC event %d\n", event);
spin_unlock_irqrestore(&ds_lock, flags);