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path: root/drivers/rapidio/rio-scan.c
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Diffstat (limited to 'drivers/rapidio/rio-scan.c')
-rw-r--r--drivers/rapidio/rio-scan.c84
1 files changed, 43 insertions, 41 deletions
diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
index 1eb82c4c712e..51f0af241eb7 100644
--- a/drivers/rapidio/rio-scan.c
+++ b/drivers/rapidio/rio-scan.c
@@ -437,9 +437,15 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
next_destid++;
} else
rdev->destid = rio_get_device_id(port, destid, hopcount);
- } else
- /* Switch device has an associated destID */
- rdev->destid = RIO_INVALID_DESTID;
+
+ rdev->hopcount = 0xff;
+ } else {
+ /* Switch device has an associated destID which
+ * will be adjusted later
+ */
+ rdev->destid = destid;
+ rdev->hopcount = hopcount;
+ }
/* If a PE has both switch and other functions, show it as a switch */
if (rio_is_switch(rdev)) {
@@ -450,8 +456,6 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
if (!rswitch)
goto cleanup;
rswitch->switchid = next_switchid;
- rswitch->hopcount = hopcount;
- rswitch->destid = destid;
rswitch->port_ok = 0;
rswitch->route_table = kzalloc(sizeof(u8)*
RIO_MAX_ROUTE_ENTRIES(port->sys_size),
@@ -632,8 +636,7 @@ rio_unlock_device(struct rio_mport *port, u16 destid, u8 hopcount)
/**
* rio_route_add_entry- Add a route entry to a switch routing table
- * @mport: Master port to send transaction
- * @rswitch: Switch device
+ * @rdev: RIO device
* @table: Routing table ID
* @route_destid: Destination ID to be routed
* @route_port: Port number to be routed
@@ -647,31 +650,31 @@ rio_unlock_device(struct rio_mport *port, u16 destid, u8 hopcount)
* on failure.
*/
static int
-rio_route_add_entry(struct rio_mport *mport, struct rio_switch *rswitch,
+rio_route_add_entry(struct rio_dev *rdev,
u16 table, u16 route_destid, u8 route_port, int lock)
{
int rc;
if (lock) {
- rc = rio_lock_device(mport, rswitch->destid,
- rswitch->hopcount, 1000);
+ rc = rio_lock_device(rdev->net->hport, rdev->destid,
+ rdev->hopcount, 1000);
if (rc)
return rc;
}
- rc = rswitch->add_entry(mport, rswitch->destid,
- rswitch->hopcount, table,
- route_destid, route_port);
+ rc = rdev->rswitch->add_entry(rdev->net->hport, rdev->destid,
+ rdev->hopcount, table,
+ route_destid, route_port);
if (lock)
- rio_unlock_device(mport, rswitch->destid, rswitch->hopcount);
+ rio_unlock_device(rdev->net->hport, rdev->destid,
+ rdev->hopcount);
return rc;
}
/**
* rio_route_get_entry- Read a route entry in a switch routing table
- * @mport: Master port to send transaction
- * @rswitch: Switch device
+ * @rdev: RIO device
* @table: Routing table ID
* @route_destid: Destination ID to be routed
* @route_port: Pointer to read port number into
@@ -685,23 +688,24 @@ rio_route_add_entry(struct rio_mport *mport, struct rio_switch *rswitch,
* on failure.
*/
static int
-rio_route_get_entry(struct rio_mport *mport, struct rio_switch *rswitch, u16 table,
+rio_route_get_entry(struct rio_dev *rdev, u16 table,
u16 route_destid, u8 *route_port, int lock)
{
int rc;
if (lock) {
- rc = rio_lock_device(mport, rswitch->destid,
- rswitch->hopcount, 1000);
+ rc = rio_lock_device(rdev->net->hport, rdev->destid,
+ rdev->hopcount, 1000);
if (rc)
return rc;
}
- rc = rswitch->get_entry(mport, rswitch->destid,
- rswitch->hopcount, table,
- route_destid, route_port);
+ rc = rdev->rswitch->get_entry(rdev->net->hport, rdev->destid,
+ rdev->hopcount, table,
+ route_destid, route_port);
if (lock)
- rio_unlock_device(mport, rswitch->destid, rswitch->hopcount);
+ rio_unlock_device(rdev->net->hport, rdev->destid,
+ rdev->hopcount);
return rc;
}
@@ -811,14 +815,14 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
if (rio_is_switch(rdev)) {
next_switchid++;
sw_inport = RIO_GET_PORT_NUM(rdev->swpinfo);
- rio_route_add_entry(port, rdev->rswitch, RIO_GLOBAL_TABLE,
+ rio_route_add_entry(rdev, RIO_GLOBAL_TABLE,
port->host_deviceid, sw_inport, 0);
rdev->rswitch->route_table[port->host_deviceid] = sw_inport;
for (destid = 0; destid < next_destid; destid++) {
if (destid == port->host_deviceid)
continue;
- rio_route_add_entry(port, rdev->rswitch, RIO_GLOBAL_TABLE,
+ rio_route_add_entry(rdev, RIO_GLOBAL_TABLE,
destid, sw_inport, 0);
rdev->rswitch->route_table[destid] = sw_inport;
}
@@ -850,8 +854,7 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
"RIO: scanning device on port %d\n",
port_num);
rdev->rswitch->port_ok |= (1 << port_num);
- rio_route_add_entry(port, rdev->rswitch,
- RIO_GLOBAL_TABLE,
+ rio_route_add_entry(rdev, RIO_GLOBAL_TABLE,
RIO_ANY_DESTID(port->sys_size),
port_num, 0);
@@ -865,7 +868,7 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
destid < next_destid; destid++) {
if (destid == port->host_deviceid)
continue;
- rio_route_add_entry(port, rdev->rswitch,
+ rio_route_add_entry(rdev,
RIO_GLOBAL_TABLE,
destid,
port_num,
@@ -904,7 +907,7 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
next_destid++;
}
- rdev->rswitch->destid = sw_destid;
+ rdev->destid = sw_destid;
} else
pr_debug("RIO: found %s (vid %4.4x did %4.4x)\n",
rio_name(rdev), rdev->vid, rdev->did);
@@ -958,7 +961,7 @@ rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid,
next_switchid++;
/* Associated destid is how we accessed this switch */
- rdev->rswitch->destid = destid;
+ rdev->destid = destid;
pr_debug(
"RIO: found %s (vid %4.4x did %4.4x) with %d ports\n",
@@ -981,7 +984,7 @@ rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid,
for (ndestid = 0;
ndestid < RIO_ANY_DESTID(port->sys_size);
ndestid++) {
- rio_route_get_entry(port, rdev->rswitch,
+ rio_route_get_entry(rdev,
RIO_GLOBAL_TABLE,
ndestid,
&route_port, 0);
@@ -1076,7 +1079,7 @@ static void rio_update_route_tables(struct rio_mport *port)
list_for_each_entry(rdev, &rio_devices, global_list) {
- destid = (rio_is_switch(rdev))?rdev->rswitch->destid:rdev->destid;
+ destid = rdev->destid;
list_for_each_entry(rswitch, &rio_switches, node) {
@@ -1085,13 +1088,13 @@ static void rio_update_route_tables(struct rio_mport *port)
if (RIO_INVALID_ROUTE == rswitch->route_table[destid]) {
/* Skip if destid ends in empty switch*/
- if (rswitch->destid == destid)
+ if (rswitch->rdev->destid == destid)
continue;
sport = RIO_GET_PORT_NUM(rswitch->rdev->swpinfo);
if (rswitch->add_entry) {
- rio_route_add_entry(port, rswitch,
+ rio_route_add_entry(rswitch->rdev,
RIO_GLOBAL_TABLE, destid,
sport, 0);
rswitch->route_table[destid] = sport;
@@ -1203,21 +1206,20 @@ static void rio_build_route_tables(void)
list_for_each_entry(rdev, &rio_devices, global_list)
if (rio_is_switch(rdev)) {
- rio_lock_device(rdev->net->hport, rdev->rswitch->destid,
- rdev->rswitch->hopcount, 1000);
+ rio_lock_device(rdev->net->hport, rdev->destid,
+ rdev->hopcount, 1000);
for (i = 0;
i < RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size);
i++) {
- if (rio_route_get_entry
- (rdev->net->hport, rdev->rswitch,
- RIO_GLOBAL_TABLE, i, &sport, 0) < 0)
+ if (rio_route_get_entry(rdev,
+ RIO_GLOBAL_TABLE, i, &sport, 0) < 0)
continue;
rdev->rswitch->route_table[i] = sport;
}
rio_unlock_device(rdev->net->hport,
- rdev->rswitch->destid,
- rdev->rswitch->hopcount);
+ rdev->destid,
+ rdev->hopcount);
}
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.