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sgi-xp: support runtime selection of xp_max_npartitions

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Support runtime selection of the max number of partitions based on the
hardware being run on.

Signed-off-by: Dean Nelson <dcn@sgi.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 22:34:04 -07:00
committed by Linus Torvalds
parent 78ce1bbe44
commit bc63d387e4
10 changed files with 266 additions and 151 deletions
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20
drivers/misc/sgi-xp/xpc_channel.c
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@ -110,14 +110,14 @@ xpc_setup_infrastructure(struct xpc_partition *part)
* Allocate all of the channel structures as a contiguous chunk of
* memory.
*/
part->channels = kzalloc(sizeof(struct xpc_channel) * XPC_NCHANNELS,
part->channels = kzalloc(sizeof(struct xpc_channel) * XPC_MAX_NCHANNELS,
GFP_KERNEL);
if (part->channels == NULL) {
dev_err(xpc_chan, "can't get memory for channels\n");
return xpNoMemory;
}
part->nchannels = XPC_NCHANNELS;
part->nchannels = XPC_MAX_NCHANNELS;
/* allocate all the required GET/PUT values */
@ -1432,9 +1432,9 @@ xpc_initiate_connect(int ch_number)
struct xpc_partition *part;
struct xpc_channel *ch;
DBUG_ON(ch_number < 0 || ch_number >= XPC_NCHANNELS);
DBUG_ON(ch_number < 0 || ch_number >= XPC_MAX_NCHANNELS);
for (partid = 1; partid < XP_MAX_PARTITIONS; partid++) {
for (partid = 0; partid < xp_max_npartitions; partid++) {
part = &xpc_partitions[partid];
if (xpc_part_ref(part)) {
@ -1488,10 +1488,10 @@ xpc_initiate_disconnect(int ch_number)
struct xpc_partition *part;
struct xpc_channel *ch;
DBUG_ON(ch_number < 0 || ch_number >= XPC_NCHANNELS);
DBUG_ON(ch_number < 0 || ch_number >= XPC_MAX_NCHANNELS);
/* initiate the channel disconnect for every active partition */
for (partid = 1; partid < XP_MAX_PARTITIONS; partid++) {
for (partid = 0; partid < xp_max_npartitions; partid++) {
part = &xpc_partitions[partid];
if (xpc_part_ref(part)) {
@ -1734,7 +1734,7 @@ xpc_initiate_allocate(short partid, int ch_number, u32 flags, void **payload)
enum xp_retval ret = xpUnknownReason;
struct xpc_msg *msg = NULL;
DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
DBUG_ON(partid < 0 || partid >= xp_max_npartitions);
DBUG_ON(ch_number < 0 || ch_number >= part->nchannels);
*payload = NULL;
@ -1918,7 +1918,7 @@ xpc_initiate_send(short partid, int ch_number, void *payload)
dev_dbg(xpc_chan, "msg=0x%p, partid=%d, channel=%d\n", (void *)msg,
partid, ch_number);
DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
DBUG_ON(partid < 0 || partid >= xp_max_npartitions);
DBUG_ON(ch_number < 0 || ch_number >= part->nchannels);
DBUG_ON(msg == NULL);
@ -1968,7 +1968,7 @@ xpc_initiate_send_notify(short partid, int ch_number, void *payload,
dev_dbg(xpc_chan, "msg=0x%p, partid=%d, channel=%d\n", (void *)msg,
partid, ch_number);
DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
DBUG_ON(partid < 0 || partid >= xp_max_npartitions);
DBUG_ON(ch_number < 0 || ch_number >= part->nchannels);
DBUG_ON(msg == NULL);
DBUG_ON(func == NULL);
@ -2210,7 +2210,7 @@ xpc_initiate_received(short partid, int ch_number, void *payload)
struct xpc_msg *msg = XPC_MSG_ADDRESS(payload);
s64 get, msg_number = msg->number;
DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
DBUG_ON(partid < 0 || partid >= xp_max_npartitions);
DBUG_ON(ch_number < 0 || ch_number >= part->nchannels);
ch = &part->channels[ch_number];