Sasha,

This and the subsequent patch clean up the port info query code to be more
straight forward.

First off I got rid of the "decode_port_info" function as it does very little
and combined the smp_query_via call into a "query_port_info"

The second patch removes the "get_port_info" function as it became nearly
redundant with query_port_info.

Ira

From: Ira Weiny <[email protected]>
Date: Tue, 10 Nov 2009 11:22:03 -0800
Subject: [PATCH] infiniband-diags/libibnetdisc: clean up PortInfo queries

        remove old "decode_port_info" and replace with new "query_port_info"

Signed-off-by: Ira Weiny <[email protected]>
---
 infiniband-diags/libibnetdisc/src/ibnetdisc.c |   32 +++++++++++++-----------
 1 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/infiniband-diags/libibnetdisc/src/ibnetdisc.c 
b/infiniband-diags/libibnetdisc/src/ibnetdisc.c
index 62dff93..3f62f3f 100644
--- a/infiniband-diags/libibnetdisc/src/ibnetdisc.c
+++ b/infiniband-diags/libibnetdisc/src/ibnetdisc.c
@@ -57,16 +57,24 @@
 static int show_progress = 0;
 int ibdebug;
 
-void decode_port_info(ibnd_port_t * port)
+int query_port_info(struct ibmad_port *ibmad_port, ib_portid_t * portid,
+                   int portnum, ibnd_port_t * port)
 {
+       if (!smp_query_via(port->info, portid, IB_ATTR_PORT_INFO,
+                          portnum, 0, ibmad_port))
+               return -1;
+
        port->base_lid = (uint16_t) mad_get_field(port->info, 0, IB_PORT_LID_F);
        port->lmc = (uint8_t) mad_get_field(port->info, 0, IB_PORT_LMC_F);
+
+       return 0;
 }
 
 static int get_port_info(struct ibmad_port *ibmad_port,
                         ibnd_fabric_t * fabric, ibnd_port_t * port,
                         int portnum, ib_portid_t * portid)
 {
+       int rc = 0;
        char width[64], speed[64];
        int iwidth;
        int ispeed;
@@ -75,11 +83,8 @@ static int get_port_info(struct ibmad_port *ibmad_port,
        iwidth = mad_get_field(port->info, 0, IB_PORT_LINK_WIDTH_ACTIVE_F);
        ispeed = mad_get_field(port->info, 0, IB_PORT_LINK_SPEED_ACTIVE_F);
 
-       if (!smp_query_via(port->info, portid, IB_ATTR_PORT_INFO,
-                          portnum, 0, ibmad_port))
-               return -1;
-
-       decode_port_info(port);
+       if ((rc = query_port_info(ibmad_port, portid, portnum, port)) != 0)
+               return rc;
 
        IBND_DEBUG
            ("portid %s portnum %d: base lid %d state %d physstate %d %s %s\n",
@@ -123,10 +128,8 @@ static int query_node(struct ibmad_port *ibmad_port, 
ibnd_fabric_t * fabric,
        if (!smp_query_via(nd, portid, IB_ATTR_NODE_DESC, 0, 0, ibmad_port))
                return -1;
 
-       if (!smp_query_via(port->info, portid, IB_ATTR_PORT_INFO, 0, 0,
-                          ibmad_port))
-               return -1;
-       decode_port_info(port);
+       if ((rc = query_port_info(ibmad_port, portid, 0, port)) != 0)
+               return rc;
 
        if (node->type != IB_NODE_SWITCH)
                return 0;
@@ -134,11 +137,10 @@ static int query_node(struct ibmad_port *ibmad_port, 
ibnd_fabric_t * fabric,
        node->smalid = port->base_lid;
        node->smalmc = port->lmc;
 
-       /* after we have the sma information find out the real PortInfo for 
this port */
-       if (!smp_query_via(port->info, portid, IB_ATTR_PORT_INFO,
-                          port->portnum, 0, ibmad_port))
-               return -1;
-       decode_port_info(port);
+       /* after we have the sma information find out the "real" PortInfo for
+        * the external port */
+       if ((rc = query_port_info(ibmad_port, portid, port->portnum, port)) != 
0)
+               return rc;
 
        port->base_lid = (uint16_t) node->smalid;       /* LID is still defined 
by port 0 */
        port->lmc = (uint8_t) node->smalmc;
-- 
1.5.4.5

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