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sgi-xp: setup the notify GRU message queue

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Setup the notify GRU message queue that is used for sending user messages
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>
This commit is contained in:
Dean Nelson
2008-07-29 22:34:19 -07:00
committed by Linus Torvalds
parent 5b8669dfd1
commit bd3e64c175
8 changed files with 1043 additions and 395 deletions
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21
drivers/misc/sgi-xp/xpc_main.c
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@@ -188,8 +188,8 @@ u64 (*xpc_get_chctl_all_flags) (struct xpc_partition *part);
enum xp_retval (*xpc_setup_msg_structures) (struct xpc_channel *ch);
void (*xpc_teardown_msg_structures) (struct xpc_channel *ch);
void (*xpc_process_msg_chctl_flags) (struct xpc_partition *part, int ch_number);
int (*xpc_n_of_deliverable_msgs) (struct xpc_channel *ch);
struct xpc_msg *(*xpc_get_deliverable_msg) (struct xpc_channel *ch);
int (*xpc_n_of_deliverable_payloads) (struct xpc_channel *ch);
void *(*xpc_get_deliverable_payload) (struct xpc_channel *ch);
void (*xpc_request_partition_activation) (struct xpc_rsvd_page *remote_rp,
unsigned long remote_rp_pa,
@@ -220,10 +220,11 @@ void (*xpc_send_chctl_openreply) (struct xpc_channel *ch,
void (*xpc_save_remote_msgqueue_pa) (struct xpc_channel *ch,
unsigned long msgqueue_pa);
enum xp_retval (*xpc_send_msg) (struct xpc_channel *ch, u32 flags,
void *payload, u16 payload_size, u8 notify_type,
xpc_notify_func func, void *key);
void (*xpc_received_msg) (struct xpc_channel *ch, struct xpc_msg *msg);
enum xp_retval (*xpc_send_payload) (struct xpc_channel *ch, u32 flags,
void *payload, u16 payload_size,
u8 notify_type, xpc_notify_func func,
void *key);
void (*xpc_received_payload) (struct xpc_channel *ch, void *payload);
/*
* Timer function to enforce the timelimit on the partition disengage.
@@ -714,9 +715,9 @@ xpc_kthread_waitmsgs(struct xpc_partition *part, struct xpc_channel *ch)
do {
/* deliver messages to their intended recipients */
while (xpc_n_of_deliverable_msgs(ch) > 0 &&
while (xpc_n_of_deliverable_payloads(ch) > 0 &&
!(ch->flags & XPC_C_DISCONNECTING)) {
xpc_deliver_msg(ch);
xpc_deliver_payload(ch);
}
if (atomic_inc_return(&ch->kthreads_idle) >
@@ -730,7 +731,7 @@ xpc_kthread_waitmsgs(struct xpc_partition *part, struct xpc_channel *ch)
"wait_event_interruptible_exclusive()\n");
(void)wait_event_interruptible_exclusive(ch->idle_wq,
(xpc_n_of_deliverable_msgs(ch) > 0 ||
(xpc_n_of_deliverable_payloads(ch) > 0 ||
(ch->flags & XPC_C_DISCONNECTING)));
atomic_dec(&ch->kthreads_idle);
@@ -775,7 +776,7 @@ xpc_kthread_start(void *args)
* additional kthreads to help deliver them. We only
* need one less than total #of messages to deliver.
*/
n_needed = xpc_n_of_deliverable_msgs(ch) - 1;
n_needed = xpc_n_of_deliverable_payloads(ch) - 1;
if (n_needed > 0 && !(ch->flags & XPC_C_DISCONNECTING))
xpc_activate_kthreads(ch, n_needed);