diff options
| author | Dean Nelson <dcn@sgi.com> | 2008-07-29 22:34:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-30 09:41:50 -0700 |
| commit | bd3e64c1759e4930315ebf022611468ee9621486 (patch) | |
| tree | 314f4f8a80788b181aa03714d952854c8e2a1866 /drivers/misc/sgi-xp/xpnet.c | |
| parent | 5b8669dfd110a62a74eea525a009342f73987ea0 (diff) | |
| download | lwn-bd3e64c1759e4930315ebf022611468ee9621486.tar.gz lwn-bd3e64c1759e4930315ebf022611468ee9621486.zip | |
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>
Diffstat (limited to 'drivers/misc/sgi-xp/xpnet.c')
| -rw-r--r-- | drivers/misc/sgi-xp/xpnet.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/misc/sgi-xp/xpnet.c b/drivers/misc/sgi-xp/xpnet.c index 4f5d62230116..71513b3af708 100644 --- a/drivers/misc/sgi-xp/xpnet.c +++ b/drivers/misc/sgi-xp/xpnet.c @@ -57,11 +57,10 @@ struct xpnet_message { * * 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 @@ xpnet_send(struct sk_buff *skb, struct xpnet_pending_msg *queued_msg, { 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 @@ xpnet_send(struct sk_buff *skb, struct xpnet_pending_msg *queued_msg, &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 @@ xpnet_send(struct sk_buff *skb, struct xpnet_pending_msg *queued_msg, 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); } |