From: Ira Weiny <[email protected]>
Date: Wed, 29 Apr 2009 10:15:55 -0700
Subject: [PATCH] Add combined routing support to libibnetdisc

   Also allow a scan to start at a switch.

Signed-off-by: Ira Weiny <[email protected]>
---
 infiniband-diags/libibnetdisc/src/ibnetdisc.c |   28 ++++++++++++++++++------
 1 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/infiniband-diags/libibnetdisc/src/ibnetdisc.c 
b/infiniband-diags/libibnetdisc/src/ibnetdisc.c
index 0ff5134..fc19633 100644
--- a/infiniband-diags/libibnetdisc/src/ibnetdisc.c
+++ b/infiniband-diags/libibnetdisc/src/ibnetdisc.c
@@ -177,11 +177,26 @@ add_port_to_dpath(ib_dr_path_t *path, int nextport)
 }
 
 static int
-extend_dpath(struct ibnd_fabric *f, ib_dr_path_t *path, int nextport)
+extend_dpath(struct ibnd_fabric *f, ib_portid_t *portid, int nextport)
 {
-       int rc = add_port_to_dpath(path, nextport);
-       if ((rc != -1) && (path->cnt > f->fabric.maxhops_discovered))
-               f->fabric.maxhops_discovered = path->cnt;
+       int rc = 0;
+
+       if (portid->lid && !portid->drpath.drslid) {
+               /* If we were LID routed
+                * AND have not done so already
+                * we need to set up the drslid
+                */
+               ib_portid_t selfportid = { 0 };
+               if (ib_resolve_self_via(&selfportid, NULL, NULL, 
f->fabric.ibmad_port) < 0)
+                       return -1;
+               portid->drpath.drslid = selfportid.lid;
+               portid->drpath.drdlid = 0xFFFF;
+       }
+
+       rc = add_port_to_dpath(&portid->drpath, nextport);
+
+       if ((rc != -1) && (portid->drpath.cnt > f->fabric.maxhops_discovered))
+               f->fabric.maxhops_discovered = portid->drpath.cnt;
        return (rc);
 }
 
@@ -447,7 +462,7 @@ get_remote_node(struct ibnd_fabric *fabric, struct 
ibnd_node *node, struct ibnd_
                        != IB_PORT_PHYS_STATE_LINKUP)
                return -1;
 
-       if (extend_dpath(fabric, &path->drpath, portnum) < 0)
+       if (extend_dpath(fabric, path, portnum) < 0)
                return -1;
 
        if (query_node(fabric, &node_buf, &port_buf, path)) {
@@ -546,8 +561,7 @@ ibnd_discover_fabric(struct ibmad_port *ibmad_port, int 
timeout_ms,
        if (!port)
                IBPANIC("out of memory");
 
-       if (node->node.type != IB_NODE_SWITCH &&
-           get_remote_node(fabric, node, port, from,
+       if(get_remote_node(fabric, node, port, from,
                                mad_get_field(node->node.info, 0, 
IB_NODE_LOCAL_PORT_F),
                                0) < 0)
                return ((ibnd_fabric_t *)fabric);
-- 
1.5.4.5

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