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authorDean Nelson <dcn@sgi.com>2008-07-29 22:34:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-30 09:41:50 -0700
commit5b8669dfd110a62a74eea525a009342f73987ea0 (patch)
tree04572d8508f450131298b6ec072e97aa9fdba539 /drivers/misc/sgi-xp/xpc_channel.c
parent83469b5525b4a35be40b17cb41d64118d84d9f80 (diff)
sgi-xp: setup the activate GRU message queue
Setup the activate GRU message queue that is used for partition activation and channel connection on UV systems. Signed-off-by: Dean Nelson <dcn@sgi.com> Cc: Jack Steiner <steiner@sgi.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc/sgi-xp/xpc_channel.c')
-rw-r--r--drivers/misc/sgi-xp/xpc_channel.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/misc/sgi-xp/xpc_channel.c b/drivers/misc/sgi-xp/xpc_channel.c
index 17ab75d69e8..73df9fb5ee6 100644
--- a/drivers/misc/sgi-xp/xpc_channel.c
+++ b/drivers/misc/sgi-xp/xpc_channel.c
@@ -39,7 +39,7 @@ xpc_process_connect(struct xpc_channel *ch, unsigned long *irq_flags)
if (!(ch->flags & XPC_C_SETUP)) {
spin_unlock_irqrestore(&ch->lock, *irq_flags);
- ret = xpc_allocate_msgqueues(ch);
+ ret = xpc_setup_msg_structures(ch);
spin_lock_irqsave(&ch->lock, *irq_flags);
if (ret != xpSuccess)
@@ -62,8 +62,6 @@ xpc_process_connect(struct xpc_channel *ch, unsigned long *irq_flags)
if (!(ch->flags & XPC_C_ROPENREPLY))
return;
- DBUG_ON(ch->remote_msgqueue_pa == 0);
-
ch->flags = (XPC_C_CONNECTED | XPC_C_SETUP); /* clear all else */
dev_info(xpc_chan, "channel %d to partition %d connected\n",
@@ -134,13 +132,23 @@ xpc_process_disconnect(struct xpc_channel *ch, unsigned long *irq_flags)
spin_lock_irqsave(&ch->lock, *irq_flags);
}
+ DBUG_ON(atomic_read(&ch->n_to_notify) != 0);
+
/* it's now safe to free the channel's message queues */
- xpc_free_msgqueues(ch);
+ xpc_teardown_msg_structures(ch);
+
+ ch->func = NULL;
+ ch->key = NULL;
+ ch->msg_size = 0;
+ ch->local_nentries = 0;
+ ch->remote_nentries = 0;
+ ch->kthreads_assigned_limit = 0;
+ ch->kthreads_idle_limit = 0;
/*
* Mark the channel disconnected and clear all other flags, including
- * XPC_C_SETUP (because of call to xpc_free_msgqueues()) but not
- * including XPC_C_WDISCONNECT (if it was set).
+ * XPC_C_SETUP (because of call to xpc_teardown_msg_structures()) but
+ * not including XPC_C_WDISCONNECT (if it was set).
*/
ch->flags = (XPC_C_DISCONNECTED | (ch->flags & XPC_C_WDISCONNECT));
@@ -395,7 +403,7 @@ again:
DBUG_ON(args->remote_nentries == 0);
ch->flags |= XPC_C_ROPENREPLY;
- ch->remote_msgqueue_pa = args->local_msgqueue_pa;
+ xpc_save_remote_msgqueue_pa(ch, args->local_msgqueue_pa);
if (args->local_nentries < ch->remote_nentries) {
dev_dbg(xpc_chan, "XPC_CHCTL_OPENREPLY: new "