sgi-xp: setup the notify GRU message queue
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>
diff --git a/drivers/misc/sgi-xp/xpc_channel.c b/drivers/misc/sgi-xp/xpc_channel.c
index 73df9fb..9cd2ebe 100644
--- a/drivers/misc/sgi-xp/xpc_channel.c
+++ b/drivers/misc/sgi-xp/xpc_channel.c
@@ -139,7 +139,7 @@
ch->func = NULL;
ch->key = NULL;
- ch->msg_size = 0;
+ ch->entry_size = 0;
ch->local_nentries = 0;
ch->remote_nentries = 0;
ch->kthreads_assigned_limit = 0;
@@ -315,9 +315,9 @@
if (chctl_flags & XPC_CHCTL_OPENREQUEST) {
- dev_dbg(xpc_chan, "XPC_CHCTL_OPENREQUEST (msg_size=%d, "
+ dev_dbg(xpc_chan, "XPC_CHCTL_OPENREQUEST (entry_size=%d, "
"local_nentries=%d) received from partid=%d, "
- "channel=%d\n", args->msg_size, args->local_nentries,
+ "channel=%d\n", args->entry_size, args->local_nentries,
ch->partid, ch->number);
if (part->act_state == XPC_P_AS_DEACTIVATING ||
@@ -338,10 +338,10 @@
/*
* The meaningful OPENREQUEST connection state fields are:
- * msg_size = size of channel's messages in bytes
+ * entry_size = size of channel's messages in bytes
* local_nentries = remote partition's local_nentries
*/
- if (args->msg_size == 0 || args->local_nentries == 0) {
+ if (args->entry_size == 0 || args->local_nentries == 0) {
/* assume OPENREQUEST was delayed by mistake */
spin_unlock_irqrestore(&ch->lock, irq_flags);
return;
@@ -351,14 +351,14 @@
ch->remote_nentries = args->local_nentries;
if (ch->flags & XPC_C_OPENREQUEST) {
- if (args->msg_size != ch->msg_size) {
+ if (args->entry_size != ch->entry_size) {
XPC_DISCONNECT_CHANNEL(ch, xpUnequalMsgSizes,
&irq_flags);
spin_unlock_irqrestore(&ch->lock, irq_flags);
return;
}
} else {
- ch->msg_size = args->msg_size;
+ ch->entry_size = args->entry_size;
XPC_SET_REASON(ch, 0, 0);
ch->flags &= ~XPC_C_DISCONNECTED;
@@ -473,7 +473,7 @@
ch->local_nentries = registration->nentries;
if (ch->flags & XPC_C_ROPENREQUEST) {
- if (registration->msg_size != ch->msg_size) {
+ if (registration->entry_size != ch->entry_size) {
/* the local and remote sides aren't the same */
/*
@@ -492,7 +492,7 @@
return xpUnequalMsgSizes;
}
} else {
- ch->msg_size = registration->msg_size;
+ ch->entry_size = registration->entry_size;
XPC_SET_REASON(ch, 0, 0);
ch->flags &= ~XPC_C_DISCONNECTED;
@@ -859,8 +859,8 @@
DBUG_ON(payload == NULL);
if (xpc_part_ref(part)) {
- ret = xpc_send_msg(&part->channels[ch_number], flags, payload,
- payload_size, 0, NULL, NULL);
+ ret = xpc_send_payload(&part->channels[ch_number], flags,
+ payload, payload_size, 0, NULL, NULL);
xpc_part_deref(part);
}
@@ -911,23 +911,24 @@
DBUG_ON(func == NULL);
if (xpc_part_ref(part)) {
- ret = xpc_send_msg(&part->channels[ch_number], flags, payload,
- payload_size, XPC_N_CALL, func, key);
+ ret = xpc_send_payload(&part->channels[ch_number], flags,
+ payload, payload_size, XPC_N_CALL, func,
+ key);
xpc_part_deref(part);
}
return ret;
}
/*
- * Deliver a message to its intended recipient.
+ * Deliver a message's payload to its intended recipient.
*/
void
-xpc_deliver_msg(struct xpc_channel *ch)
+xpc_deliver_payload(struct xpc_channel *ch)
{
- struct xpc_msg *msg;
+ void *payload;
- msg = xpc_get_deliverable_msg(ch);
- if (msg != NULL) {
+ payload = xpc_get_deliverable_payload(ch);
+ if (payload != NULL) {
/*
* This ref is taken to protect the payload itself from being
@@ -939,18 +940,16 @@
atomic_inc(&ch->kthreads_active);
if (ch->func != NULL) {
- dev_dbg(xpc_chan, "ch->func() called, msg=0x%p, "
- "msg_number=%ld, partid=%d, channel=%d\n",
- msg, (signed long)msg->number, ch->partid,
+ dev_dbg(xpc_chan, "ch->func() called, payload=0x%p "
+ "partid=%d channel=%d\n", payload, ch->partid,
ch->number);
/* deliver the message to its intended recipient */
- ch->func(xpMsgReceived, ch->partid, ch->number,
- &msg->payload, ch->key);
+ ch->func(xpMsgReceived, ch->partid, ch->number, payload,
+ ch->key);
- dev_dbg(xpc_chan, "ch->func() returned, msg=0x%p, "
- "msg_number=%ld, partid=%d, channel=%d\n",
- msg, (signed long)msg->number, ch->partid,
+ dev_dbg(xpc_chan, "ch->func() returned, payload=0x%p "
+ "partid=%d channel=%d\n", payload, ch->partid,
ch->number);
}
@@ -959,14 +958,11 @@
}
/*
- * Acknowledge receipt of a delivered message.
- *
- * If a message has XPC_M_INTERRUPT set, send an interrupt to the partition
- * that sent the message.
+ * Acknowledge receipt of a delivered message's payload.
*
* This function, although called by users, does not call xpc_part_ref() to
* ensure that the partition infrastructure is in place. It relies on the
- * fact that we called xpc_msgqueue_ref() in xpc_deliver_msg().
+ * fact that we called xpc_msgqueue_ref() in xpc_deliver_payload().
*
* Arguments:
*
@@ -980,14 +976,13 @@
{
struct xpc_partition *part = &xpc_partitions[partid];
struct xpc_channel *ch;
- struct xpc_msg *msg = XPC_MSG_ADDRESS(payload);
DBUG_ON(partid < 0 || partid >= xp_max_npartitions);
DBUG_ON(ch_number < 0 || ch_number >= part->nchannels);
ch = &part->channels[ch_number];
- xpc_received_msg(ch, msg);
+ xpc_received_payload(ch, payload);
- /* the call to xpc_msgqueue_ref() was done by xpc_deliver_msg() */
+ /* the call to xpc_msgqueue_ref() was done by xpc_deliver_payload() */
xpc_msgqueue_deref(ch);
}