/
ibnetdisc.c
1143 lines (966 loc) · 29.7 KB
/
ibnetdisc.c
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/*
* Copyright (c) 2004-2009 Voltaire Inc. All rights reserved.
* Copyright (c) 2007 Xsigo Systems Inc. All rights reserved.
* Copyright (c) 2008 Lawrence Livermore National Laboratory
* 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.
*
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <inttypes.h>
#include <infiniband/umad.h>
#include <infiniband/mad.h>
#include <util/iba_types.h>
#include <infiniband/ibnetdisc.h>
#include "internal.h"
#include "chassis.h"
#define container_of(ptr, type, member) \
((type *)((uint8_t *)(ptr)-offsetof(type, member)))
/* forward declarations */
struct ni_cbdata
{
ibnd_node_t *node;
int port_num;
};
static int query_node_info(smp_engine_t * engine, ib_portid_t * portid,
struct ni_cbdata * cbdata);
static int query_port_info(smp_engine_t * engine, ib_portid_t * portid,
ibnd_node_t * node, int portnum);
static int recv_switch_info(smp_engine_t * engine, ibnd_smp_t * smp,
uint8_t * mad, void *cb_data)
{
uint8_t *switch_info = mad + IB_SMP_DATA_OFFS;
ibnd_node_t *node = cb_data;
memcpy(node->switchinfo, switch_info, sizeof(node->switchinfo));
mad_decode_field(node->switchinfo, IB_SW_ENHANCED_PORT0_F,
&node->smaenhsp0);
return 0;
}
static int query_switch_info(smp_engine_t * engine, ib_portid_t * portid,
ibnd_node_t * node)
{
node->smaenhsp0 = 0; /* assume base SP0 */
return issue_smp(engine, portid, IB_ATTR_SWITCH_INFO, 0,
recv_switch_info, node);
}
static int add_port_to_dpath(ib_dr_path_t * path, int nextport)
{
if (path->cnt > sizeof(path->p) - 2)
return -1;
++path->cnt;
path->p[path->cnt] = (uint8_t) nextport;
return path->cnt;
}
static int retract_dpath(smp_engine_t * engine, ib_portid_t * portid)
{
ibnd_scan_t *scan = engine->user_data;
f_internal_t *f_int = scan->f_int;
if (scan->cfg->max_hops &&
f_int->fabric.maxhops_discovered > scan->cfg->max_hops)
return 0;
/* this may seem wrong but the only time we would retract the path is
* if the user specified a CA for the DR path and we are retracting
* from that to find the node it is connected to. This counts as a
* positive hop discovered
*/
f_int->fabric.maxhops_discovered++;
portid->drpath.p[portid->drpath.cnt] = 0;
portid->drpath.cnt--;
return 1;
}
static int extend_dpath(smp_engine_t * engine, ib_portid_t * portid,
int nextport)
{
ibnd_scan_t *scan = engine->user_data;
f_internal_t *f_int = scan->f_int;
if (scan->cfg->max_hops &&
f_int->fabric.maxhops_discovered > scan->cfg->max_hops)
return 0;
if (portid->lid) {
/* If we were LID routed we need to set up the drslid */
portid->drpath.drslid = (uint16_t) scan->selfportid.lid;
portid->drpath.drdlid = 0xFFFF;
}
if (add_port_to_dpath(&portid->drpath, nextport) < 0) {
IBND_ERROR("add port %d to DR path failed; %s\n", nextport,
portid2str(portid));
return -1;
}
if (((unsigned) portid->drpath.cnt - scan->initial_hops) >
f_int->fabric.maxhops_discovered)
f_int->fabric.maxhops_discovered++;
return 1;
}
static int recv_node_desc(smp_engine_t * engine, ibnd_smp_t * smp,
uint8_t * mad, void *cb_data)
{
uint8_t *node_desc = mad + IB_SMP_DATA_OFFS;
ibnd_node_t *node = cb_data;
memcpy(node->nodedesc, node_desc, sizeof(node->nodedesc));
return 0;
}
static int query_node_desc(smp_engine_t * engine, ib_portid_t * portid,
ibnd_node_t * node)
{
return issue_smp(engine, portid, IB_ATTR_NODE_DESC, 0,
recv_node_desc, node);
}
static void debug_port(ib_portid_t * portid, ibnd_port_t * port)
{
char width[64], speed[64];
int iwidth;
int ispeed, fdr10, espeed;
uint8_t *info;
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);
fdr10 = mad_get_field(port->ext_info, 0,
IB_MLNX_EXT_PORT_LINK_SPEED_ACTIVE_F);
if (port->node->type == IB_NODE_SWITCH)
info = (uint8_t *)&port->node->ports[0]->info;
else
info = (uint8_t *)&port->info;
espeed = ibnd_get_agg_linkspeedext(info, port->info);
IBND_DEBUG
("portid %s portnum %d: base lid %d state %d physstate %d %s %s %s %s\n",
portid2str(portid), port->portnum, port->base_lid,
mad_get_field(port->info, 0, IB_PORT_STATE_F),
mad_get_field(port->info, 0, IB_PORT_PHYS_STATE_F),
mad_dump_val(IB_PORT_LINK_WIDTH_ACTIVE_F, width, 64, &iwidth),
mad_dump_val(IB_PORT_LINK_SPEED_ACTIVE_F, speed, 64, &ispeed),
(fdr10 & FDR10) ? "FDR10" : "",
ibnd_dump_agg_linkspeedext(speed, 64, espeed));
}
static int is_mlnx_ext_port_info_supported(ibnd_port_t * port)
{
uint16_t devid = (uint16_t) mad_get_field(port->node->info, 0, IB_NODE_DEVID_F);
uint32_t vendorid = (uint32_t) mad_get_field(port->node->info, 0, IB_NODE_VENDORID_F);
if ((devid >= 0xc738 && devid <= 0xc73b) ||
devid == 0xc839 || devid == 0xcb20 || devid == 0xcf08 ||
devid == 0xcf09 || devid == 0xd2f0 ||
((vendorid == 0x119f) &&
/* Bull SwitchX */
(devid == 0x1b02 || devid == 0x1b50 ||
/* Bull SwitchIB and SwitchIB2 */
devid == 0x1ba0 ||
(devid >= 0x1bd0 && devid <= 0x1bd5) ||
/* Bull Quantum */
devid == 0x1bf0)))
return 1;
if ((devid >= 0x1003 && devid <= 0x101b) || (devid == 0xa2d2) ||
((vendorid == 0x119f) &&
/* Bull ConnectX3 */
(devid == 0x1b33 || devid == 0x1b73 ||
devid == 0x1b40 || devid == 0x1b41 ||
devid == 0x1b60 || devid == 0x1b61 ||
/* Bull ConnectIB */
devid == 0x1b83 ||
devid == 0x1b93 || devid == 0x1b94 ||
/* Bull ConnectX4, Sequana HDR and HDR100 */
devid == 0x1bb4 || devid == 0x1bb5 ||
(devid >= 0x1bc4 && devid <= 0x1bc6))))
return 1;
return 0;
}
int mlnx_ext_port_info_err(smp_engine_t * engine, ibnd_smp_t * smp,
uint8_t * mad, void *cb_data)
{
f_internal_t *f_int = ((ibnd_scan_t *) engine->user_data)->f_int;
ibnd_node_t *node = cb_data;
ibnd_port_t *port;
uint8_t port_num, local_port;
port_num = (uint8_t) mad_get_field(mad, 0, IB_MAD_ATTRMOD_F);
port = node->ports[port_num];
if (!port) {
IBND_ERROR("Failed to find 0x%" PRIx64 " port %u\n",
node->guid, port_num);
return -1;
}
local_port = (uint8_t) mad_get_field(port->info, 0, IB_PORT_LOCAL_PORT_F);
debug_port(&smp->path, port);
if (port_num && mad_get_field(port->info, 0, IB_PORT_PHYS_STATE_F)
== IB_PORT_PHYS_STATE_LINKUP
&& ((node->type == IB_NODE_SWITCH && port_num != local_port) ||
(node == f_int->fabric.from_node && port_num == f_int->fabric.from_portnum))) {
int rc = 0;
ib_portid_t path = smp->path;
if (node->type != IB_NODE_SWITCH &&
node == f_int->fabric.from_node &&
path.drpath.cnt > 1)
rc = retract_dpath(engine, &path);
else {
/* we can't proceed through an HCA with DR */
if (path.lid == 0 || node->type == IB_NODE_SWITCH)
rc = extend_dpath(engine, &path, port_num);
}
if (rc > 0) {
struct ni_cbdata * cbdata = malloc(sizeof(*cbdata));
cbdata->node = node;
cbdata->port_num = port_num;
query_node_info(engine, &path, cbdata);
}
}
return 0;
}
static int recv_mlnx_ext_port_info(smp_engine_t * engine, ibnd_smp_t * smp,
uint8_t * mad, void *cb_data)
{
f_internal_t *f_int = ((ibnd_scan_t *) engine->user_data)->f_int;
ibnd_node_t *node = cb_data;
ibnd_port_t *port;
uint8_t *ext_port_info = mad + IB_SMP_DATA_OFFS;
uint8_t port_num, local_port;
port_num = (uint8_t) mad_get_field(mad, 0, IB_MAD_ATTRMOD_F);
port = node->ports[port_num];
if (!port) {
IBND_ERROR("Failed to find 0x%" PRIx64 " port %u\n",
node->guid, port_num);
return -1;
}
memcpy(port->ext_info, ext_port_info, sizeof(port->ext_info));
local_port = (uint8_t) mad_get_field(port->info, 0, IB_PORT_LOCAL_PORT_F);
debug_port(&smp->path, port);
if (port_num && mad_get_field(port->info, 0, IB_PORT_PHYS_STATE_F)
== IB_PORT_PHYS_STATE_LINKUP
&& ((node->type == IB_NODE_SWITCH && port_num != local_port) ||
(node == f_int->fabric.from_node && port_num == f_int->fabric.from_portnum))) {
int rc = 0;
ib_portid_t path = smp->path;
if (node->type != IB_NODE_SWITCH &&
node == f_int->fabric.from_node &&
path.drpath.cnt > 1)
rc = retract_dpath(engine, &path);
else {
/* we can't proceed through an HCA with DR */
if (path.lid == 0 || node->type == IB_NODE_SWITCH)
rc = extend_dpath(engine, &path, port_num);
}
if (rc > 0) {
struct ni_cbdata * cbdata = malloc(sizeof(*cbdata));
cbdata->node = node;
cbdata->port_num = port_num;
query_node_info(engine, &path, cbdata);
}
}
return 0;
}
static int query_mlnx_ext_port_info(smp_engine_t * engine, ib_portid_t * portid,
ibnd_node_t * node, int portnum)
{
IBND_DEBUG("Query MLNX Extended Port Info; %s (0x%" PRIx64 "):%d\n",
portid2str(portid), node->guid, portnum);
return issue_smp(engine, portid, IB_ATTR_MLNX_EXT_PORT_INFO, portnum,
recv_mlnx_ext_port_info, node);
}
static int recv_port_info(smp_engine_t * engine, ibnd_smp_t * smp,
uint8_t * mad, void *cb_data)
{
ibnd_scan_t *scan = (ibnd_scan_t *)engine->user_data;
f_internal_t *f_int = scan->f_int;
ibnd_node_t *node = cb_data;
ibnd_port_t *port;
uint8_t *port_info = mad + IB_SMP_DATA_OFFS;
uint8_t port_num, local_port;
int phystate, ispeed, espeed;
uint8_t *info;
port_num = (uint8_t) mad_get_field(mad, 0, IB_MAD_ATTRMOD_F);
local_port = (uint8_t) mad_get_field(port_info, 0, IB_PORT_LOCAL_PORT_F);
/* this may have been created before */
port = node->ports[port_num];
if (!port) {
port = node->ports[port_num] = calloc(1, sizeof(*port));
if (!port) {
IBND_ERROR("Failed to allocate 0x%" PRIx64 " port %u\n",
node->guid, port_num);
return -1;
}
port->guid =
mad_get_field64(node->info, 0, IB_NODE_PORT_GUID_F);
}
memcpy(port->info, port_info, sizeof(port->info));
port->node = node;
port->portnum = port_num;
port->ext_portnum = 0;
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);
if (port_num == 0) {
node->smalid = port->base_lid;
node->smalmc = port->lmc;
} else if (node->type == IB_NODE_SWITCH) {
port->base_lid = node->smalid;
port->lmc = node->smalmc;
}
int rc1 = add_to_portguid_hash(port, f_int->fabric.portstbl);
if (rc1)
IBND_ERROR("Error Occurred when trying"
" to insert new port guid 0x%016" PRIx64 " to DB\n",
port->guid);
add_to_portlid_hash(port, f_int);
if ((scan->cfg->flags & IBND_CONFIG_MLX_EPI)
&& is_mlnx_ext_port_info_supported(port)) {
phystate = mad_get_field(port->info, 0, IB_PORT_PHYS_STATE_F);
ispeed = mad_get_field(port->info, 0, IB_PORT_LINK_SPEED_ACTIVE_F);
if (port->node->type == IB_NODE_SWITCH)
info = (uint8_t *)&port->node->ports[0]->info;
else
info = (uint8_t *)&port->info;
espeed = ibnd_get_agg_linkspeedext(info, port->info);
if (phystate == IB_PORT_PHYS_STATE_LINKUP &&
ispeed == IB_LINK_SPEED_ACTIVE_10 &&
espeed == IB_LINK_SPEED_EXT_ACTIVE_NONE) { /* LinkUp/QDR */
query_mlnx_ext_port_info(engine, &smp->path,
node, port_num);
return 0;
}
}
debug_port(&smp->path, port);
if (port_num && mad_get_field(port->info, 0, IB_PORT_PHYS_STATE_F)
== IB_PORT_PHYS_STATE_LINKUP
&& ((node->type == IB_NODE_SWITCH && port_num != local_port) ||
(node == f_int->fabric.from_node && port_num == f_int->fabric.from_portnum))) {
int rc = 0;
ib_portid_t path = smp->path;
if (node->type != IB_NODE_SWITCH &&
node == f_int->fabric.from_node &&
path.drpath.cnt > 1)
rc = retract_dpath(engine, &path);
else {
/* we can't proceed through an HCA with DR */
if (path.lid == 0 || node->type == IB_NODE_SWITCH)
rc = extend_dpath(engine, &path, port_num);
}
if (rc > 0) {
struct ni_cbdata * cbdata = malloc(sizeof(*cbdata));
cbdata->node = node;
cbdata->port_num = port_num;
query_node_info(engine, &path, cbdata);
}
}
return 0;
}
static int recv_port0_info(smp_engine_t * engine, ibnd_smp_t * smp,
uint8_t * mad, void *cb_data)
{
ibnd_node_t *node = cb_data;
int i, status;
status = recv_port_info(engine, smp, mad, cb_data);
/* Query PortInfo on switch external/physical ports */
for (i = 1; i <= node->numports; i++)
query_port_info(engine, &smp->path, node, i);
return status;
}
static int query_port_info(smp_engine_t * engine, ib_portid_t * portid,
ibnd_node_t * node, int portnum)
{
IBND_DEBUG("Query Port Info; %s (0x%" PRIx64 "):%d\n",
portid2str(portid), node->guid, portnum);
return issue_smp(engine, portid, IB_ATTR_PORT_INFO, portnum,
portnum ? recv_port_info : recv_port0_info, node);
}
static ibnd_node_t *create_node(smp_engine_t * engine, ib_portid_t * path,
uint8_t * node_info)
{
f_internal_t *f_int = ((ibnd_scan_t *) engine->user_data)->f_int;
ibnd_node_t *rc = calloc(1, sizeof(*rc));
if (!rc) {
IBND_ERROR("OOM: node creation failed\n");
return NULL;
}
/* decode just a couple of fields for quicker reference. */
mad_decode_field(node_info, IB_NODE_GUID_F, &rc->guid);
mad_decode_field(node_info, IB_NODE_TYPE_F, &rc->type);
mad_decode_field(node_info, IB_NODE_NPORTS_F, &rc->numports);
rc->ports = calloc(rc->numports + 1, sizeof(*rc->ports));
if (!rc->ports) {
free(rc);
IBND_ERROR("OOM: Failed to allocate the ports array\n");
return NULL;
}
rc->path_portid = *path;
memcpy(rc->info, node_info, sizeof(rc->info));
int rc1 = add_to_nodeguid_hash(rc, f_int->fabric.nodestbl);
if (rc1)
IBND_ERROR("Error Occurred when trying"
" to insert new node guid 0x%016" PRIx64 " to DB\n",
rc->guid);
/* add this to the all nodes list */
rc->next = f_int->fabric.nodes;
f_int->fabric.nodes = rc;
add_to_type_list(rc, f_int);
return rc;
}
static void link_ports(ibnd_node_t * node, ibnd_port_t * port,
ibnd_node_t * remotenode, ibnd_port_t * remoteport)
{
IBND_DEBUG("linking: 0x%" PRIx64 " %p->%p:%u and 0x%" PRIx64
" %p->%p:%u\n", node->guid, node, port, port->portnum,
remotenode->guid, remotenode, remoteport,
remoteport->portnum);
if (port->remoteport)
port->remoteport->remoteport = NULL;
if (remoteport->remoteport)
remoteport->remoteport->remoteport = NULL;
port->remoteport = remoteport;
remoteport->remoteport = port;
}
static void dump_endnode(ib_portid_t *path, const char *prompt,
ibnd_node_t *node, ibnd_port_t *port)
{
char type[64];
mad_dump_node_type(type, sizeof(type), &node->type, sizeof(int));
printf("%s -> %s %s {%016" PRIx64 "} portnum %d lid %d-%d \"%s\"\n",
portid2str(path), prompt, type, node->guid,
node->type == IB_NODE_SWITCH ? 0 : port->portnum,
port->base_lid, port->base_lid + (1 << port->lmc) - 1,
node->nodedesc);
}
static int recv_node_info(smp_engine_t * engine, ibnd_smp_t * smp,
uint8_t * mad, void *cb_data)
{
ibnd_scan_t *scan = engine->user_data;
f_internal_t *f_int = scan->f_int;
uint8_t *node_info = mad + IB_SMP_DATA_OFFS;
struct ni_cbdata *ni_cbdata = (struct ni_cbdata *)cb_data;
ibnd_node_t *rem_node = NULL;
int rem_port_num = 0;
ibnd_node_t *node;
int node_is_new = 0;
uint64_t node_guid = mad_get_field64(node_info, 0, IB_NODE_GUID_F);
uint64_t port_guid = mad_get_field64(node_info, 0, IB_NODE_PORT_GUID_F);
int port_num = mad_get_field(node_info, 0, IB_NODE_LOCAL_PORT_F);
ibnd_port_t *port = NULL;
if (ni_cbdata) {
rem_node = ni_cbdata->node;
rem_port_num = ni_cbdata->port_num;
free(ni_cbdata);
}
node = ibnd_find_node_guid(&f_int->fabric, node_guid);
if (!node) {
node = create_node(engine, &smp->path, node_info);
if (!node)
return -1;
node_is_new = 1;
}
IBND_DEBUG("Found %s node GUID 0x%" PRIx64 " (%s)\n",
node_is_new ? "new" : "old", node->guid,
portid2str(&smp->path));
port = node->ports[port_num];
if (!port) {
/* If we have not see this port before create a shell for it */
port = node->ports[port_num] = calloc(1, sizeof(*port));
if (!port)
return -1;
port->node = node;
port->portnum = port_num;
}
port->guid = port_guid;
if (scan->cfg->show_progress)
dump_endnode(&smp->path, node_is_new ? "new" : "known",
node, port);
if (rem_node == NULL) { /* this is the start node */
f_int->fabric.from_node = node;
f_int->fabric.from_portnum = port_num;
} else {
/* link ports... */
if (!rem_node->ports[rem_port_num]) {
IBND_ERROR("Internal Error; "
"Node(%p) 0x%" PRIx64
" Port %d no port created!?!?!?\n\n",
rem_node, rem_node->guid, rem_port_num);
return -1;
}
link_ports(node, port, rem_node, rem_node->ports[rem_port_num]);
}
if (node_is_new) {
query_node_desc(engine, &smp->path, node);
if (node->type == IB_NODE_SWITCH) {
query_switch_info(engine, &smp->path, node);
/* Query PortInfo on Switch Port 0 first */
query_port_info(engine, &smp->path, node, 0);
}
}
if (node->type != IB_NODE_SWITCH)
query_port_info(engine, &smp->path, node, port_num);
return 0;
}
static int query_node_info(smp_engine_t * engine, ib_portid_t * portid,
struct ni_cbdata * cbdata)
{
IBND_DEBUG("Query Node Info; %s\n", portid2str(portid));
return issue_smp(engine, portid, IB_ATTR_NODE_INFO, 0,
recv_node_info, (void *)cbdata);
}
ibnd_node_t *ibnd_find_node_guid(ibnd_fabric_t * fabric, uint64_t guid)
{
int hash = HASHGUID(guid) % HTSZ;
ibnd_node_t *node;
if (!fabric) {
IBND_DEBUG("fabric parameter NULL\n");
return NULL;
}
for (node = fabric->nodestbl[hash]; node; node = node->htnext)
if (node->guid == guid)
return node;
return NULL;
}
ibnd_node_t *ibnd_find_node_dr(ibnd_fabric_t * fabric, char *dr_str)
{
ibnd_port_t *rc = ibnd_find_port_dr(fabric, dr_str);
return rc->node;
}
int add_to_nodeguid_hash(ibnd_node_t * node, ibnd_node_t * hash[])
{
int rc = 0;
ibnd_node_t *tblnode;
int hash_idx = HASHGUID(node->guid) % HTSZ;
for (tblnode = hash[hash_idx]; tblnode; tblnode = tblnode->htnext) {
if (tblnode == node) {
IBND_ERROR("Duplicate Node: Node with guid 0x%016"
PRIx64 " already exists in nodes DB\n",
node->guid);
return 1;
}
}
node->htnext = hash[hash_idx];
hash[hash_idx] = node;
return rc;
}
int add_to_portguid_hash(ibnd_port_t * port, ibnd_port_t * hash[])
{
int rc = 0;
ibnd_port_t *tblport;
int hash_idx = HASHGUID(port->guid) % HTSZ;
for (tblport = hash[hash_idx]; tblport; tblport = tblport->htnext) {
if (tblport == port) {
IBND_ERROR("Duplicate Port: Port with guid 0x%016"
PRIx64 " already exists in ports DB\n",
port->guid);
return 1;
}
}
port->htnext = hash[hash_idx];
hash[hash_idx] = port;
return rc;
}
struct lid2guid_item {
cl_map_item_t cl_map;
ibnd_port_t *port;
};
void create_lid2guid(f_internal_t *f_int)
{
cl_qmap_init(&f_int->lid2guid);
}
void destroy_lid2guid(f_internal_t *f_int)
{
cl_map_item_t *item;
for (item = cl_qmap_head(&f_int->lid2guid); item != cl_qmap_end(&f_int->lid2guid);
item = cl_qmap_head(&f_int->lid2guid)) {
cl_qmap_remove_item(&f_int->lid2guid, item);
free(container_of(item, struct lid2guid_item, cl_map));
}
}
void add_to_portlid_hash(ibnd_port_t * port, f_internal_t *f_int)
{
uint16_t base_lid = port->base_lid;
uint16_t lid_mask = ((1 << port->lmc) -1);
uint16_t lid = 0;
/* 0 < valid lid <= 0xbfff */
if (base_lid > 0 && base_lid <= 0xbfff) {
/* We add the port for all lids
* so it is easier to find any "random" lid specified */
for (lid = base_lid; lid <= (base_lid + lid_mask); lid++) {
struct lid2guid_item *item;
item = malloc(sizeof(*item));
if (item) {
item->port = port;
if (cl_qmap_insert(&f_int->lid2guid, lid,
&item->cl_map) != &item->cl_map) {
/* Port is already in map, release item */
free(item);
}
}
}
}
}
void add_to_type_list(ibnd_node_t * node, f_internal_t * f_int)
{
ibnd_fabric_t *fabric = &f_int->fabric;
switch (node->type) {
case IB_NODE_CA:
node->type_next = fabric->ch_adapters;
fabric->ch_adapters = node;
break;
case IB_NODE_SWITCH:
node->type_next = fabric->switches;
fabric->switches = node;
break;
case IB_NODE_ROUTER:
node->type_next = fabric->routers;
fabric->routers = node;
break;
}
}
static int set_config(struct ibnd_config *config, struct ibnd_config *cfg)
{
if (!config)
return (-EINVAL);
if (cfg)
memcpy(config, cfg, sizeof(*config));
if (!config->max_smps)
config->max_smps = DEFAULT_MAX_SMP_ON_WIRE;
if (!config->timeout_ms)
config->timeout_ms = DEFAULT_TIMEOUT;
if (!config->retries)
config->retries = DEFAULT_RETRIES;
return (0);
}
f_internal_t *allocate_fabric_internal(void)
{
f_internal_t *f = calloc(1, sizeof(*f));
if (f)
create_lid2guid(f);
return (f);
}
ibnd_fabric_t *ibnd_discover_fabric(char * ca_name, int ca_port,
ib_portid_t * from,
struct ibnd_config *cfg)
{
struct ibnd_config config = { 0 };
f_internal_t *f_int = NULL;
ib_portid_t my_portid = { 0 };
smp_engine_t engine;
ibnd_scan_t scan;
struct ibmad_port *ibmad_port;
int nc = 2;
int mc[2] = { IB_SMI_CLASS, IB_SMI_DIRECT_CLASS };
/* If not specified start from "my" port */
if (!from)
from = &my_portid;
if (set_config(&config, cfg)) {
IBND_ERROR("Invalid ibnd_config\n");
return NULL;
}
f_int = allocate_fabric_internal();
if (!f_int) {
IBND_ERROR("OOM: failed to calloc ibnd_fabric_t\n");
return NULL;
}
memset(&scan.selfportid, 0, sizeof(scan.selfportid));
scan.f_int = f_int;
scan.cfg = &config;
scan.initial_hops = from->drpath.cnt;
ibmad_port = mad_rpc_open_port(ca_name, ca_port, mc, nc);
if (!ibmad_port) {
IBND_ERROR("can't open MAD port (%s:%d)\n", ca_name, ca_port);
goto error_int;
}
mad_rpc_set_timeout(ibmad_port, cfg->timeout_ms);
mad_rpc_set_retries(ibmad_port, cfg->retries);
smp_mkey_set(ibmad_port, cfg->mkey);
if (ib_resolve_self_via(&scan.selfportid,
NULL, NULL, ibmad_port) < 0) {
IBND_ERROR("Failed to resolve self\n");
mad_rpc_close_port(ibmad_port);
goto error_int;
}
mad_rpc_close_port(ibmad_port);
if (smp_engine_init(&engine, ca_name, ca_port, &scan, &config)) {
goto error_int;
}
IBND_DEBUG("from %s\n", portid2str(from));
if (!query_node_info(&engine, from, NULL))
if (process_mads(&engine) != 0)
goto error;
f_int->fabric.total_mads_used = engine.total_smps;
f_int->fabric.maxhops_discovered += scan.initial_hops;
if (group_nodes(&f_int->fabric))
goto error;
smp_engine_destroy(&engine);
return (ibnd_fabric_t *)f_int;
error:
smp_engine_destroy(&engine);
ibnd_destroy_fabric(&f_int->fabric);
error_int:
free(f_int);
return NULL;
}
void destroy_node(ibnd_node_t * node)
{
int p = 0;
if (node->ports) {
for (p = 0; p <= node->numports; p++)
free(node->ports[p]);
free(node->ports);
}
free(node);
}
void ibnd_destroy_fabric(ibnd_fabric_t * fabric)
{
ibnd_node_t *node = NULL;
ibnd_node_t *next = NULL;
ibnd_chassis_t *ch, *ch_next;
if (!fabric)
return;
ch = fabric->chassis;
while (ch) {
ch_next = ch->next;
free(ch);
ch = ch_next;
}
node = fabric->nodes;
while (node) {
next = node->next;
destroy_node(node);
node = next;
}
destroy_lid2guid((f_internal_t *)fabric);
free(fabric);
}
void ibnd_iter_nodes(ibnd_fabric_t * fabric, ibnd_iter_node_func_t func,
void *user_data)
{
ibnd_node_t *cur = NULL;
if (!fabric) {
IBND_DEBUG("fabric parameter NULL\n");
return;
}
if (!func) {
IBND_DEBUG("func parameter NULL\n");
return;
}
for (cur = fabric->nodes; cur; cur = cur->next)
func(cur, user_data);
}
void ibnd_iter_nodes_type(ibnd_fabric_t * fabric, ibnd_iter_node_func_t func,
int node_type, void *user_data)
{
ibnd_node_t *list = NULL;
ibnd_node_t *cur = NULL;
if (!fabric) {
IBND_DEBUG("fabric parameter NULL\n");
return;
}
if (!func) {
IBND_DEBUG("func parameter NULL\n");
return;
}
switch (node_type) {
case IB_NODE_SWITCH:
list = fabric->switches;
break;
case IB_NODE_CA:
list = fabric->ch_adapters;
break;
case IB_NODE_ROUTER:
list = fabric->routers;
break;
default:
IBND_DEBUG("Invalid node_type specified %d\n", node_type);
break;
}
for (cur = list; cur; cur = cur->type_next)
func(cur, user_data);
}
ibnd_port_t *ibnd_find_port_lid(ibnd_fabric_t * fabric,
uint16_t lid)
{
f_internal_t *f = (f_internal_t *)fabric;
cl_map_item_t *p_item = cl_qmap_get(&f->lid2guid, lid);
if (p_item == &f->lid2guid.nil)
return NULL;
return container_of(p_item,
struct lid2guid_item, cl_map)
->port;
}
ibnd_port_t *ibnd_find_port_guid(ibnd_fabric_t * fabric, uint64_t guid)
{
int hash = HASHGUID(guid) % HTSZ;
ibnd_port_t *port;
if (!fabric) {
IBND_DEBUG("fabric parameter NULL\n");
return NULL;
}
for (port = fabric->portstbl[hash]; port; port = port->htnext)
if (port->guid == guid)
return port;
return NULL;
}
ibnd_port_t *ibnd_find_port_dr(ibnd_fabric_t * fabric, char *dr_str)
{
int i = 0;
ibnd_node_t *cur_node;
ibnd_port_t *rc = NULL;
ib_dr_path_t path;
if (!fabric) {
IBND_DEBUG("fabric parameter NULL\n");
return NULL;
}
if (!dr_str) {
IBND_DEBUG("dr_str parameter NULL\n");
return NULL;
}
cur_node = fabric->from_node;
if (str2drpath(&path, dr_str, 0, 0) == -1)
return NULL;
for (i = 0; i <= path.cnt; i++) {
ibnd_port_t *remote_port = NULL;
if (path.p[i] == 0)
continue;
if (!cur_node->ports)
return NULL;
remote_port = cur_node->ports[path.p[i]]->remoteport;
if (!remote_port)
return NULL;
rc = remote_port;
cur_node = remote_port->node;
}
return rc;
}