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/xpnet.c b/drivers/misc/sgi-xp/xpnet.c
index 4f5d622..71513b3a 100644
--- a/drivers/misc/sgi-xp/xpnet.c
+++ b/drivers/misc/sgi-xp/xpnet.c
@@ -57,11 +57,10 @@
*
* XPC expects each message to exist in an individual cacheline.
*/
-#define XPNET_MSG_SIZE (L1_CACHE_BYTES - XPC_MSG_PAYLOAD_OFFSET)
+#define XPNET_MSG_SIZE XPC_MSG_PAYLOAD_MAX_SIZE
#define XPNET_MSG_DATA_MAX \
- (XPNET_MSG_SIZE - (u64)(&((struct xpnet_message *)0)->data))
-#define XPNET_MSG_ALIGNED_SIZE (L1_CACHE_ALIGN(XPNET_MSG_SIZE))
-#define XPNET_MSG_NENTRIES (PAGE_SIZE / XPNET_MSG_ALIGNED_SIZE)
+ (XPNET_MSG_SIZE - offsetof(struct xpnet_message, data))
+#define XPNET_MSG_NENTRIES (PAGE_SIZE / XPC_MSG_MAX_SIZE)
#define XPNET_MAX_KTHREADS (XPNET_MSG_NENTRIES + 1)
#define XPNET_MAX_IDLE_KTHREADS (XPNET_MSG_NENTRIES + 1)
@@ -408,6 +407,7 @@
{
u8 msg_buffer[XPNET_MSG_SIZE];
struct xpnet_message *msg = (struct xpnet_message *)&msg_buffer;
+ u16 msg_size = sizeof(struct xpnet_message);
enum xp_retval ret;
msg->embedded_bytes = embedded_bytes;
@@ -417,6 +417,7 @@
&msg->data, skb->data, (size_t)embedded_bytes);
skb_copy_from_linear_data(skb, &msg->data,
(size_t)embedded_bytes);
+ msg_size += embedded_bytes - 1;
} else {
msg->version = XPNET_VERSION;
}
@@ -435,7 +436,7 @@
atomic_inc(&queued_msg->use_count);
ret = xpc_send_notify(dest_partid, XPC_NET_CHANNEL, XPC_NOWAIT, msg,
- XPNET_MSG_SIZE, xpnet_send_completed, queued_msg);
+ msg_size, xpnet_send_completed, queued_msg);
if (unlikely(ret != xpSuccess))
atomic_dec(&queued_msg->use_count);
}