diff options
| author | David S. Miller <davem@sunset.davemloft.net> | 2007-07-17 23:12:20 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-07-18 01:20:09 -0700 |
| commit | 8a2950cce6c8fa29bcbf6a3b33a63e0e68337f0e (patch) | |
| tree | d7692cd45035a78e7968a2fb23865ec4b8c95892 | |
| parent | 6160f63518406485c7009cb0f2e1588ea3abccc1 (diff) | |
[SPARC64]: Handle LDC resets properly in domain-services driver.
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>
| -rw-r--r-- | arch/sparc64/kernel/ds.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/ds.c b/arch/sparc64/kernel/ds.c index ba01533f4e0..fa1f04d756a 100644 --- a/arch/sparc64/kernel/ds.c +++ b/arch/sparc64/kernel/ds.c @@ -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); |