diff options
Diffstat (limited to 'drivers/rapidio/rio-scan.c')
| -rw-r--r-- | drivers/rapidio/rio-scan.c | 56 |
1 files changed, 23 insertions, 33 deletions
diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c index d09c359844f3..d2ea01872d6a 100644 --- a/drivers/rapidio/rio-scan.c +++ b/drivers/rapidio/rio-scan.c @@ -444,7 +444,10 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net, /* If a PE has both switch and other functions, show it as a switch */ if (rio_is_switch(rdev)) { - rswitch = kzalloc(sizeof(struct rio_switch), GFP_KERNEL); + rswitch = kzalloc(sizeof(*rswitch) + + RIO_GET_TOTAL_PORTS(rdev->swpinfo) * + sizeof(rswitch->nextdev[0]), + GFP_KERNEL); if (!rswitch) goto cleanup; rswitch->switchid = next_switchid; @@ -723,25 +726,6 @@ static u16 rio_get_host_deviceid_lock(struct rio_mport *port, u8 hopcount) } /** - * rio_get_swpinfo_tports- Gets total number of ports on the switch - * @mport: Master port to send transaction - * @destid: Destination ID associated with the switch - * @hopcount: Number of hops to the device - * - * Returns total numbers of ports implemented by the switch device. - */ -static u8 rio_get_swpinfo_tports(struct rio_mport *mport, u16 destid, - u8 hopcount) -{ - u32 result; - - rio_mport_read_config_32(mport, destid, hopcount, RIO_SWP_INFO_CAR, - &result); - - return RIO_GET_TOTAL_PORTS(result); -} - -/** * rio_net_add_mport- Add a master port to a RIO network * @net: RIO network * @port: Master port to add @@ -761,15 +745,16 @@ static void rio_net_add_mport(struct rio_net *net, struct rio_mport *port) * @net: RIO network being enumerated * @port: Master port to send transactions * @hopcount: Number of hops into the network + * @prev: Previous RIO device connected to the enumerated one + * @prev_port: Port on previous RIO device * * Recursively enumerates a RIO network. Transactions are sent via the * master port passed in @port. */ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port, - u8 hopcount) + u8 hopcount, struct rio_dev *prev, int prev_port) { int port_num; - int num_ports; int cur_destid; int sw_destid; int sw_inport; @@ -814,6 +799,9 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port, if (rdev) { /* 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; @@ -832,14 +820,14 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port, rdev->rswitch->route_table[destid] = sw_inport; } - num_ports = - rio_get_swpinfo_tports(port, RIO_ANY_DESTID(port->sys_size), - hopcount); pr_debug( "RIO: found %s (vid %4.4x did %4.4x) with %d ports\n", - rio_name(rdev), rdev->vid, rdev->did, num_ports); + rio_name(rdev), rdev->vid, rdev->did, + RIO_GET_TOTAL_PORTS(rdev->swpinfo)); sw_destid = next_destid; - for (port_num = 0; port_num < num_ports; port_num++) { + for (port_num = 0; + port_num < RIO_GET_TOTAL_PORTS(rdev->swpinfo); + port_num++) { /*Enable Input Output Port (transmitter reviever)*/ rio_enable_rx_tx_port(port, 0, RIO_ANY_DESTID(port->sys_size), @@ -864,7 +852,8 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port, RIO_ANY_DESTID(port->sys_size), port_num, 0); - if (rio_enum_peer(net, port, hopcount + 1) < 0) + if (rio_enum_peer(net, port, hopcount + 1, + rdev, port_num) < 0) return -1; /* Update routing tables */ @@ -951,7 +940,6 @@ rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid, u8 hopcount) { u8 port_num, route_port; - int num_ports; struct rio_dev *rdev; u16 ndestid; @@ -968,11 +956,13 @@ rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid, /* Associated destid is how we accessed this switch */ rdev->rswitch->destid = destid; - num_ports = rio_get_swpinfo_tports(port, destid, hopcount); pr_debug( "RIO: found %s (vid %4.4x did %4.4x) with %d ports\n", - rio_name(rdev), rdev->vid, rdev->did, num_ports); - for (port_num = 0; port_num < num_ports; port_num++) { + rio_name(rdev), rdev->vid, rdev->did, + RIO_GET_TOTAL_PORTS(rdev->swpinfo)); + for (port_num = 0; + port_num < RIO_GET_TOTAL_PORTS(rdev->swpinfo); + port_num++) { if (RIO_GET_PORT_NUM(rdev->swpinfo) == port_num) continue; @@ -1167,7 +1157,7 @@ int __devinit rio_enum_mport(struct rio_mport *mport) /* Enable Input Output Port (transmitter reviever) */ rio_enable_rx_tx_port(mport, 1, 0, 0, 0); - if (rio_enum_peer(net, mport, 0) < 0) { + if (rio_enum_peer(net, mport, 0, NULL, 0) < 0) { /* A higher priority host won enumeration, bail. */ printk(KERN_INFO "RIO: master port %d device has lost enumeration to a remote host\n", |