/*
* Copyright (c) 2004-2009 Voltaire Inc. All rights reserved.
* Copyright (c) 2009 HNR Consulting. All rights reserved.
* Copyright (c) 2010,2011 Mellanox Technologies LTD. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <netinet/in.h>
#include <inttypes.h>
#include <infiniband/umad.h>
#include <infiniband/mad.h>
#include <complib/cl_nodenamemap.h>
#include "ibdiag_common.h"
static struct ibmad_port *srcport;
#define MAXHOPS 63
static const char * const node_type_str[] = {
"???",
"ca",
"switch",
"router",
"iwarp rnic"
};
static int timeout = 0; /* ms */
static int force;
static FILE *f;
static FILE *ports_fd;
static char *node_name_map_file = NULL;
static char *ports_file = NULL;
static nn_map_t *node_name_map = NULL;
typedef struct Port Port;
typedef struct Switch Switch;
typedef struct Node Node;
struct Port {
Port *next;
Port *remoteport;
uint64_t portguid;
int portnum;
int lid;
int lmc;
int state;
int physstate;
char portinfo[64];
};
struct Switch {
int linearcap;
int mccap;
int linearFDBtop;
int fdb_base;
int enhsp0;
int8_t fdb[64];
char switchinfo[64];
};
struct Node {
Node *htnext;
Node *dnext;
Port *ports;
ib_portid_t path;
int type;
int dist;
int numports;
int upport;
Node *upnode;
uint64_t nodeguid; /* also portguid */
char nodedesc[64];
char nodeinfo[64];
};
static Node *nodesdist[MAXHOPS];
static uint64_t target_portguid;
/*
* is_port_inactive
* Checks whether or not the port state is other than active.
* The "sw" argument is only relevant when the port is on a
* switch; for HCAs and routers, this argument is ignored.
* Returns 1 when port is not active and 0 when active.
* Base switch port 0 is considered always active.
*/
static int is_port_inactive(Node * node, Port * port, Switch * sw)
{
int res = 0;
if (port->state != 4 &&
(node->type != IB_NODE_SWITCH ||
(node->type == IB_NODE_SWITCH && sw->enhsp0)))
res = 1;
return res;
}
static int get_node(Node * node, Port * port, ib_portid_t * portid)
{
void *pi = port->portinfo, *ni = node->nodeinfo, *nd = node->nodedesc;
char *s, *e;
memset(ni, 0, sizeof(node->nodeinfo));
if (!smp_query_via(ni, portid, IB_ATTR_NODE_INFO, 0, timeout, srcport))
return -1;
memset(nd, 0, sizeof(node->nodedesc));
if (!smp_query_via(nd, portid, IB_ATTR_NODE_DESC, 0, timeout, srcport))
return -1;
for (s = nd, e = s + 64; s < e; s++) {
if (!*s)
break;
if (!isprint(*s))
*s = ' ';
}
memset(pi, 0, sizeof(port->portinfo));
if (!smp_query_via(pi, portid, IB_ATTR_PORT_INFO, 0, timeout, srcport))
return -1;
mad_decode_field(ni, IB_NODE_GUID_F, &node->nodeguid);
mad_decode_field(ni, IB_NODE_TYPE_F, &node->type);
mad_decode_field(ni, IB_NODE_NPORTS_F, &node->numports);
mad_decode_field(ni, IB_NODE_PORT_GUID_F, &port->portguid);
mad_decode_field(ni, IB_NODE_LOCAL_PORT_F, &port->portnum);
mad_decode_field(pi, IB_PORT_LID_F, &port->lid);
mad_decode_field(pi, IB_PORT_LMC_F, &port->lmc);
mad_decode_field(pi, IB_PORT_STATE_F, &port->state);
DEBUG("portid %s: got node %" PRIx64 " '%s'", portid2str(portid),
node->nodeguid, node->nodedesc);
return 0;
}
static int switch_lookup(Switch * sw, ib_portid_t * portid, int lid)
{
void *si = sw->switchinfo, *fdb = sw->fdb;
memset(si, 0, sizeof(sw->switchinfo));
if (!smp_query_via(si, portid, IB_ATTR_SWITCH_INFO, 0, timeout,
srcport))
return -1;
mad_decode_field(si, IB_SW_LINEAR_FDB_CAP_F, &sw->linearcap);
mad_decode_field(si, IB_SW_LINEAR_FDB_TOP_F, &sw->linearFDBtop);
mad_decode_field(si, IB_SW_ENHANCED_PORT0_F, &sw->enhsp0);
if (lid >= sw->linearcap && lid > sw->linearFDBtop)
return -1;
memset(fdb, 0, sizeof(sw->fdb));
if (!smp_query_via(fdb, portid, IB_ATTR_LINEARFORWTBL, lid / 64,
timeout, srcport))
return -1;
DEBUG("portid %s: forward lid %d to port %d",
portid2str(portid), lid, sw->fdb[lid % 64]);
return sw->fdb[lid % 64];
}
static int sameport(Port * a, Port * b)
{
return a->portguid == b->portguid || (force && a->lid == b->lid);
}
static int extend_dpath(ib_dr_path_t * path, int nextport)
{
if (path->cnt + 2 >= sizeof(path->p))
return -1;
++path->cnt;
path->p[path->cnt] = (uint8_t) nextport;
return path->cnt;
}
static void dump_endnode(int dump, const char *prompt, Node *node, Port *port)
{
char *nodename = NULL;
if (!dump)
return;
if (dump == 1) {
fprintf(f, "%s {0x%016" PRIx64 "}[%d]\n",
prompt, node->nodeguid,
node->type == IB_NODE_SWITCH ? 0 : port->portnum);
return;
}
nodename =
remap_node_name(node_name_map, node->nodeguid, node->nodedesc);
fprintf(f, "%s %s {0x%016" PRIx64 "} portnum %d lid %u-%u \"%s\"\n",
prompt,
(node->type <= IB_NODE_MAX ? node_type_str[node->type] : "???"),
node->nodeguid,
node->type == IB_NODE_SWITCH ? 0 : port->portnum, port->lid,
port->lid + (1 << port->lmc) - 1, nodename);
free(nodename);
}
static void dump_route(int dump, Node * node, int outport, Port * port)
{
char *nodename = NULL;
if (!dump && !ibverbose)
return;
nodename =
remap_node_name(node_name_map, node->nodeguid, node->nodedesc);
if (dump == 1)
fprintf(f, "[%d] -> {0x%016" PRIx64 "}[%d]\n",
outport, port->portguid, port->portnum);
else
fprintf(f, "[%d] -> %s port {0x%016" PRIx64
"}[%d] lid %u-%u \"%s\"\n", outport,
(node->type <=
IB_NODE_MAX ? node_type_str[node->type] : "???"),
port->portguid, port->portnum, port->lid,
port->lid + (1 << port->lmc) - 1, nodename);
free(nodename);
}
static int find_route(ib_portid_t * from, ib_portid_t * to, int dump)
{
Node *node, fromnode, tonode, nextnode;
Port *port, fromport, toport, nextport;
Switch sw;
int maxhops = MAXHOPS;
int portnum, outport = 255, next_sw_outport = 255;
memset(&fromnode,0,sizeof(Node));
memset(&tonode,0,sizeof(Node));
memset(&nextnode,0,sizeof(Node));
memset(&fromport,0,sizeof(Port));
memset(&toport,0,sizeof(Port));
memset(&nextport,0,sizeof(Port));
DEBUG("from %s", portid2str(from));
if (get_node(&fromnode, &fromport, from) < 0 ||
get_node(&tonode, &toport, to) < 0) {
IBWARN("can't reach to/from ports");
if (!force)
return -1;
if (to->lid > 0)
toport.lid = to->lid;
IBWARN("Force: look for lid %d", to->lid);
}
node = &fromnode;
port = &fromport;
portnum = port->portnum;
dump_endnode(dump, "From", node, port);
if (node->type == IB_NODE_SWITCH) {
next_sw_outport = switch_lookup(&sw, from, to->lid);
if (next_sw_outport < 0 || next_sw_outport > node->numports) {
/* needed to print the port in badtbl */
outport = next_sw_outport;
goto badtbl;
}
}
while (maxhops--) {
if (is_port_inactive(node, port, &sw))
goto badport;
if (sameport(port, &toport))
break; /* found */
if (node->type == IB_NODE_SWITCH) {
DEBUG("switch node");
outport = next_sw_outport;
if (extend_dpath(&from->drpath, outport) < 0)
goto badpath;
if (get_node(&nextnode, &nextport, from) < 0) {
IBWARN("can't reach port at %s",
portid2str(from));
return -1;
}
if (outport == 0) {
if (!sameport(&nextport, &toport))
goto badtbl;
else
break; /* found SMA port */
}
} else if ((node->type == IB_NODE_CA) ||
(node->type == IB_NODE_ROUTER)) {
int ca_src = 0;
outport = portnum;
DEBUG("ca or router node");
if (!sameport(port, &fromport)) {
IBWARN
("can't continue: reached CA or router port %"
PRIx64 ", lid %d", port->portguid,
port->lid);
return -1;
}
/* we are at CA or router "from" - go one hop back to (hopefully) a switch */
if (from->drpath.cnt > 0) {
DEBUG("ca or router node - return back 1 hop");
from->drpath.cnt--;
} else {
ca_src = 1;
if (portnum
&& extend_dpath(&from->drpath, portnum) < 0)
goto badpath;
}
if (get_node(&nextnode, &nextport, from) < 0) {
IBWARN("can't reach port at %s",
portid2str(from));
return -1;
}
/* fix port num to be seen from the CA or router side */
if (!ca_src)
nextport.portnum =
from->drpath.p[from->drpath.cnt + 1];
}
/* only if the next node is a switch, get switch info */
if (nextnode.type == IB_NODE_SWITCH) {
next_sw_outport = switch_lookup(&sw, from, to->lid);
if (next_sw_outport < 0 ||
next_sw_outport > nextnode.numports) {
/* needed to print the port in badtbl */
outport = next_sw_outport;
goto badtbl;
}
}
port = &nextport;
if (is_port_inactive(&nextnode, port, &sw))
goto badoutport;
node = &nextnode;
portnum = port->portnum;
dump_route(dump, node, outport, port);
}
if (maxhops <= 0) {
IBWARN("no route found after %d hops", MAXHOPS);
return -1;
}
dump_endnode(dump, "To", node, port);
return 0;
badport:
IBWARN("Bad port state found: node \"%s\" port %d state %d",
clean_nodedesc(node->nodedesc), portnum, port->state);
return -1;
badoutport:
IBWARN("Bad out port state found: node \"%s\" outport %d state %d",
clean_nodedesc(node->nodedesc), outport, port->state);
return -1;
badtbl:
IBWARN
("Bad forwarding table entry found at: node \"%s\" lid entry %d is %d (top %d)",
clean_nodedesc(node->nodedesc), to->lid, outport, sw.linearFDBtop);
return -1;
badpath:
IBWARN("Direct path too long!");
return -1;
}
/**************************
* MC span part
*/
#define HASHGUID(guid) ((uint32_t)(((uint32_t)(guid) * 101) ^ ((uint32_t)((guid) >> 32) * 103)))
#define HTSZ 137
static int insert_node(Node * new)
{
static Node *nodestbl[HTSZ];
int hash = HASHGUID(new->nodeguid) % HTSZ;
Node *node;
for (node = nodestbl[hash]; node; node = node->htnext)
if (node->nodeguid == new->nodeguid) {
DEBUG("node %" PRIx64 " already exists", new->nodeguid);
return -1;
}
new->htnext = nodestbl[hash];
nodestbl[hash] = new;
return 0;
}
static int get_port(Port * port, int portnum, ib_portid_t * portid)
{
char portinfo[64] = { 0 };
void *pi = portinfo;
port->portnum = portnum;
if (!smp_query_via(pi, portid, IB_ATTR_PORT_INFO, portnum, timeout,
srcport))
return -1;
mad_decode_field(pi, IB_PORT_LID_F, &port->lid);
mad_decode_field(pi, IB_PORT_LMC_F, &port->lmc);
mad_decode_field(pi, IB_PORT_STATE_F, &port->state);
mad_decode_field(pi, IB_PORT_PHYS_STATE_F, &port->physstate);
VERBOSE("portid %s portnum %d: lid %d state %d physstate %d",
portid2str(portid), portnum, port->lid, port->state,
port->physstate);
return 1;
}
static void link_port(Port * port, Node * node)
{
port->next = node->ports;
node->ports = port;
}
static int new_node(Node * node, Port * port, ib_portid_t * path, int dist)
{
if (port->portguid == target_portguid) {
node->dist = -1; /* tag as target */
link_port(port, node);
dump_endnode(ibverbose, "found target", node, port);
return 1; /* found; */
}
/* BFS search start with my self */
if (insert_node(node) < 0)
return -1; /* known switch */
VERBOSE("insert dist %d node %p port %d lid %d", dist, node,
port->portnum, port->lid);
link_port(port, node);
node->dist = dist;
node->path = *path;
node->dnext = nodesdist[dist];
nodesdist[dist] = node;
return 0;
}
static int switch_mclookup(Node * node, ib_portid_t * portid, int mlid,
char *map)
{
Switch sw;
char mdb[64];
void *si = sw.switchinfo;
__be16 *msets = (__be16 *) mdb;
int maxsets, block, i, set;
memset(map, 0, 256);
memset(si, 0, sizeof(sw.switchinfo));
if (!smp_query_via(si, portid, IB_ATTR_SWITCH_INFO, 0, timeout,
srcport))
return -1;
mlid -= 0xc000;
mad_decode_field(si, IB_SW_MCAST_FDB_CAP_F, &sw.mccap);
if (mlid >= sw.mccap)
return -1;
block = mlid / 32;
maxsets = (node->numports + 15) / 16; /* round up */
for (set = 0; set < maxsets; set++) {
memset(mdb, 0, sizeof(mdb));
if (!smp_query_via(mdb, portid, IB_ATTR_MULTICASTFORWTBL,
block | (set << 28), timeout, srcport))
return -1;
for (i = 0; i < 16; i++, map++) {
uint16_t mask = ntohs(msets[mlid % 32]);
if (mask & (1 << i))
*map = 1;
else
continue;
VERBOSE("Switch guid 0x%" PRIx64
": mlid 0x%x is forwarded to port %d",
node->nodeguid, mlid + 0xc000, i + set * 16);
}
}
return 0;
}
/*
* Return 1 if found, 0 if not, -1 on errors.
*/
static Node *find_mcpath(ib_portid_t * from, int mlid)
{
Node *node, *remotenode;
Port *port, *remoteport;
char map[256];
int r, i;
int dist = 0, leafport = 0;
ib_portid_t *path;
DEBUG("from %s", portid2str(from));
if (!(node = calloc(1, sizeof(Node))))
IBEXIT("out of memory");
if (!(port = calloc(1, sizeof(Port))))
IBEXIT("out of memory");
if (get_node(node, port, from) < 0) {
IBWARN("can't reach node %s", portid2str(from));
return NULL;
}
node->upnode = NULL; /* root */
if ((r = new_node(node, port, from, 0)) > 0) {
if (node->type != IB_NODE_SWITCH) {
IBWARN("ibtracert from CA to CA is unsupported");
return NULL; /* ibtracert from host to itself is unsupported */
}
if (switch_mclookup(node, from, mlid, map) < 0 || !map[0])
return NULL;
return node;
}
for (dist = 0; dist < MAXHOPS; dist++) {
for (node = nodesdist[dist]; node; node = node->dnext) {
path = &node->path;
VERBOSE("dist %d node %p", dist, node);
dump_endnode(ibverbose, "processing", node,
node->ports);
memset(map, 0, sizeof(map));
if (node->type != IB_NODE_SWITCH) {
if (dist)
continue;
leafport = path->drpath.p[path->drpath.cnt];
map[port->portnum] = 1;
node->upport = 0; /* starting here */
DEBUG("Starting from CA 0x%" PRIx64
" lid %d port %d (leafport %d)",
node->nodeguid, port->lid, port->portnum,
leafport);
} else { /* switch */
/* if starting from a leaf port fix up port (up port) */
if (dist == 1 && leafport)
node->upport = leafport;
if (switch_mclookup(node, path, mlid, map) < 0) {
IBWARN("skipping bad Switch 0x%" PRIx64
"", node->nodeguid);
continue;
}
}
for (i = 1; i <= node->numports; i++) {
if (!map[i] || i == node->upport)
continue;
if (dist == 0 && leafport) {
if (from->drpath.cnt > 0)
path->drpath.cnt--;
} else {
if (!(port = calloc(1, sizeof(Port))))
IBEXIT("out of memory");
if (get_port(port, i, path) < 0) {
IBWARN
("can't reach node %s port %d",
portid2str(path), i);
free(port);
return NULL;
}
if (port->physstate != 5) { /* LinkUP */
free(port);
continue;
}
#if 0
link_port(port, node);
#endif
if (extend_dpath(&path->drpath, i) < 0) {
free(port);
return NULL;
}
}
if (!(remotenode = calloc(1, sizeof(Node))))
IBEXIT("out of memory");
if (!(remoteport = calloc(1, sizeof(Port))))
IBEXIT("out of memory");
if (get_node(remotenode, remoteport, path) < 0) {
IBWARN
("NodeInfo on %s port %d failed, skipping port",
portid2str(path), i);
path->drpath.cnt--; /* restore path */
free(remotenode);
free(remoteport);
continue;
}
remotenode->upnode = node;
remotenode->upport = remoteport->portnum;
remoteport->remoteport = port;
if ((r = new_node(remotenode, remoteport, path,
dist + 1)) > 0)
return remotenode;
if (r == 0)
dump_endnode(ibverbose, "new remote",
remotenode, remoteport);
else if (remotenode->type == IB_NODE_SWITCH)
dump_endnode(2,
"ERR: circle discovered at",
remotenode, remoteport);
path->drpath.cnt--; /* restore path */
}
}
}
return NULL; /* not found */
}
static uint64_t find_target_portguid(ib_portid_t * to)
{
Node tonode;
Port toport;
if (get_node(&tonode, &toport, to) < 0) {
IBWARN("can't find to port\n");
return -1;
}
return toport.portguid;
}
static void dump_mcpath(Node * node, int dumplevel)
{
char *nodename = NULL;
if (node->upnode)
dump_mcpath(node->upnode, dumplevel);
nodename =
remap_node_name(node_name_map, node->nodeguid, node->nodedesc);
if (!node->dist) {
printf("From %s 0x%" PRIx64 " port %d lid %u-%u \"%s\"\n",
(node->type <=
IB_NODE_MAX ? node_type_str[node->type] : "???"),
node->nodeguid, node->ports->portnum, node->ports->lid,
node->ports->lid + (1 << node->ports->lmc) - 1,
nodename);
goto free_name;
}
if (node->dist) {
if (dumplevel == 1)
printf("[%d] -> %s {0x%016" PRIx64 "}[%d]\n",
node->ports->remoteport->portnum,
(node->type <=
IB_NODE_MAX ? node_type_str[node->type] :
"???"), node->nodeguid, node->upport);
else
printf("[%d] -> %s 0x%" PRIx64 "[%d] lid %u \"%s\"\n",
node->ports->remoteport->portnum,
(node->type <=
IB_NODE_MAX ? node_type_str[node->type] :
"???"), node->nodeguid, node->upport,
node->ports->lid, nodename);
}
if (node->dist < 0)
/* target node */
printf("To %s 0x%" PRIx64 " port %d lid %u-%u \"%s\"\n",
(node->type <=
IB_NODE_MAX ? node_type_str[node->type] : "???"),
node->nodeguid, node->ports->portnum, node->ports->lid,
node->ports->lid + (1 << node->ports->lmc) - 1,
nodename);
free_name:
free(nodename);
}
static int resolve_lid(ib_portid_t *portid)
{
uint8_t portinfo[64] = { 0 };
uint16_t lid;
if (!smp_query_via(portinfo, portid, IB_ATTR_PORT_INFO, 0, 0, NULL))
return -1;
mad_decode_field(portinfo, IB_PORT_LID_F, &lid);
ib_portid_set(portid, lid, 0, 0);
return 0;
}
static int dumplevel = 2, multicast, mlid;
static int process_opt(void *context, int ch)
{
switch (ch) {
case 1:
node_name_map_file = strdup(optarg);
if (node_name_map_file == NULL)
IBEXIT("out of memory, strdup for node_name_map_file name failed");
break;
case 2:
ports_file = strdup(optarg);
if (ports_file == NULL)
IBEXIT("out of memory, strdup for ports_file name failed");
break;
case 'm':
multicast++;
mlid = strtoul(optarg, NULL, 0);
break;
case 'f':
force++;
break;
case 'n':
dumplevel = 1;
break;
default:
return -1;
}
return 0;
}
static int get_route(char *srcid, char *dstid) {
ib_portid_t my_portid = { 0 };
ib_portid_t src_portid = { 0 };
ib_portid_t dest_portid = { 0 };
Node *endnode;
if (resolve_portid_str(ibd_ca, ibd_ca_port, &src_portid, srcid,
ibd_dest_type, ibd_sm_id, srcport) < 0) {
IBWARN("can't resolve source port %s", srcid);
return -1;
}
if (resolve_portid_str(ibd_ca, ibd_ca_port, &dest_portid, dstid,
ibd_dest_type, ibd_sm_id, srcport) < 0) {
IBWARN("can't resolve destination port %s", dstid);
return -1;
}
if (ibd_dest_type == IB_DEST_DRPATH) {
if (resolve_lid(&src_portid) < 0) {
IBWARN("cannot resolve lid for port \'%s\'",
portid2str(&src_portid));
return -1;
}
if (resolve_lid(&dest_portid) < 0) {
IBWARN("cannot resolve lid for port \'%s\'",
portid2str(&dest_portid));
return -1;
}
}
if (dest_portid.lid == 0 || src_portid.lid == 0) {
IBWARN("bad src/dest lid");
ibdiag_show_usage();
}
if (ibd_dest_type != IB_DEST_DRPATH) {
/* first find a direct path to the src port */
if (find_route(&my_portid, &src_portid, 0) < 0) {
IBWARN("can't find a route to the src port");
return -1;
}
src_portid = my_portid;
}
if (!multicast) {
if (find_route(&src_portid, &dest_portid, dumplevel) < 0) {
IBWARN("can't find a route from src to dest");
return -1;
}
return 0;
} else {
if (mlid < 0xc000)
IBWARN("invalid MLID; must be 0xc000 or larger");
}
if (!(target_portguid = find_target_portguid(&dest_portid))) {
IBWARN("can't reach target lid %d", dest_portid.lid);
return -1;
}
if (!(endnode = find_mcpath(&src_portid, mlid))) {
IBWARN("can't find a multicast route from src to dest");
return -1;
}
/* dump multicast path */
dump_mcpath(endnode, dumplevel);
return 0;
}
int main(int argc, char **argv)
{
char dstbuf[20];
char srcbuf[20];
char portsbuf[80];
char *p_first;
int len, i;
int line_count = 0;
int num_port_pairs = 0;
int mgmt_classes[3] =
{ IB_SMI_CLASS, IB_SMI_DIRECT_CLASS, IB_SA_CLASS };
const struct ibdiag_opt opts[] = {
{"force", 'f', 0, NULL, "force"},
{"no_info", 'n', 0, NULL, "simple format"},
{"mlid", 'm', 1, "<mlid>", "multicast trace of the mlid"},
{"node-name-map", 1, 1, "<file>", "node name map file"},
{"ports-file", 2, 1, "<file>", "port pairs file"},
{}
};
char usage_args[] = "<src-addr> <dest-addr>";
const char *usage_examples[] = {
"- Unicast examples:",
"4 16\t\t\t# show path between lids 4 and 16",
"-n 4 16\t\t# same, but using simple output format",
"-G 0x8f1040396522d 0x002c9000100d051\t# use guid addresses",
" - Multicast examples:",
"-m 0xc000 4 16\t# show multicast path of mlid 0xc000 between lids 4 and 16",
NULL,
};
ibdiag_process_opts(argc, argv, NULL, "DK", opts, process_opt,
usage_args, usage_examples);
f = stdout;
argc -= optind;
argv += optind;
if (argc < 2 && ports_file == NULL)
ibdiag_show_usage();
if (ibd_timeout)
timeout = ibd_timeout;
srcport = mad_rpc_open_port(ibd_ca, ibd_ca_port, mgmt_classes, 3);
if (!srcport)
IBEXIT("Failed to open '%s' port '%d'", ibd_ca, ibd_ca_port);
smp_mkey_set(srcport, ibd_mkey);
node_name_map = open_node_name_map(node_name_map_file);
if (ports_file == NULL) {
/* single get_route call when lids/guids on command line */
if (get_route(argv[0], argv[1]) != 0)
IBEXIT("Failed to get route information");
} else {
/* multiple get_route calls when reading lids/guids from a file */
ports_fd = fopen(ports_file, "r");
if (!ports_fd)
IBEXIT("cannot open ports-file %s", ports_file);
while (fgets(portsbuf, sizeof(portsbuf), ports_fd) != NULL) {
line_count++;
p_first = strtok(portsbuf, "\n");
if (!p_first)
continue; /* ignore blank lines */
len = (int) strlen(p_first);
for (i = 0; i < len; i++) {
if (!isspace(p_first[i]))
break;
}
if (i == len) /* ignore all spaces */
continue;
if (p_first[i] == '#')
continue; /* ignore comment lines */
if (sscanf(portsbuf, "%20s %20s", srcbuf, dstbuf) != 2)
IBEXIT("ports-file, %s, at line %i contains bad data",
ports_file, line_count);
num_port_pairs++;
if (get_route(srcbuf, dstbuf) != 0)
IBEXIT("Failed to get route information at line %i",
line_count);
}
printf("%i lid/guid pairs processed from %s\n",
num_port_pairs, ports_file);
}
close_node_name_map(node_name_map);
mad_rpc_close_port(srcport);
exit(0);
}