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authorAlexandre Bounine <alexandre.bounine@idt.com>2011-01-13 04:00:41 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-13 19:03:18 +0300
commit17e9620563e25e759e677508068305e5d6ce44ff (patch)
tree3b5ec7329e643418e358598384c563902e168c5b /drivers/rapidio
parente6536927e64a2511864f2141d3e5b198b3f25ba6 (diff)
downloadlinux-17e9620563e25e759e677508068305e5d6ce44ff.tar.xz
rapidio: add device object linking into discovery
Add setting links between rio_dev objects into the discovery process. This needed to report device connections on agent (non-host) processors that perform RIO discovery. Originally, these links have been introduced for enumerating host only to support error management. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Micha Nelissen <micha@neli.hopto.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rapidio')
-rw-r--r--drivers/rapidio/rio-scan.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
index 45d14cd6b356..e655756e1185 100644
--- a/drivers/rapidio/rio-scan.c
+++ b/drivers/rapidio/rio-scan.c
@@ -947,7 +947,7 @@ static int rio_enum_complete(struct rio_mport *port)
*/
static int __devinit
rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid,
- u8 hopcount)
+ u8 hopcount, struct rio_dev *prev, int prev_port)
{
u8 port_num, route_port;
struct rio_dev *rdev;
@@ -957,6 +957,9 @@ rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid,
if ((rdev = rio_setup_device(net, port, destid, hopcount, 0))) {
/* Add device to the global and bus/net specific list. */
list_add_tail(&rdev->net_list, &net->devices);
+ rdev->prev = prev;
+ if (prev && rio_is_switch(prev))
+ prev->rswitch->nextdev[prev_port] = rdev;
} else
return -1;
@@ -998,8 +1001,8 @@ rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid,
if (ndestid == RIO_ANY_DESTID(port->sys_size))
continue;
rio_unlock_device(port, destid, hopcount);
- if (rio_disc_peer
- (net, port, ndestid, hopcount + 1) < 0)
+ if (rio_disc_peer(net, port, ndestid,
+ hopcount + 1, rdev, port_num) < 0)
return -1;
}
}
@@ -1291,7 +1294,7 @@ int __devinit rio_disc_mport(struct rio_mport *mport)
mport->host_deviceid);
if (rio_disc_peer(net, mport, RIO_ANY_DESTID(mport->sys_size),
- 0) < 0) {
+ 0, NULL, 0) < 0) {
printk(KERN_INFO
"RIO: master port %d device has failed discovery\n",
mport->id);