/*
* Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved.
* Copyright (c) 2002-2005,2008 Mellanox Technologies LTD. All rights reserved.
* Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
* Copyright (c) 2009 HNR Consulting. 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.
*
*/
/*
* Abstract:
* Implementation of osm_si_rcv_t.
* This object represents the SwitchInfo Receiver object.
* This object is part of the opensm family of objects.
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#include <string.h>
#include <iba/ib_types.h>
#include <complib/cl_qmap.h>
#include <complib/cl_passivelock.h>
#include <complib/cl_debug.h>
#include <opensm/osm_file_ids.h>
#define FILE_ID OSM_FILE_SW_INFO_RCV_C
#include <opensm/osm_log.h>
#include <opensm/osm_switch.h>
#include <opensm/osm_subnet.h>
#include <opensm/osm_helper.h>
#include <opensm/osm_opensm.h>
#if 0
/**********************************************************************
The plock must be held before calling this function.
**********************************************************************/
static void si_rcv_get_fwd_tbl(IN osm_sm_t * sm, IN osm_switch_t * p_sw)
{
osm_madw_context_t context;
osm_dr_path_t *p_dr_path;
osm_physp_t *p_physp;
osm_node_t *p_node;
uint32_t block_id_ho;
uint32_t max_block_id_ho;
ib_api_status_t status = IB_SUCCESS;
OSM_LOG_ENTER(sm->p_log);
CL_ASSERT(p_sw);
p_node = p_sw->p_node;
CL_ASSERT(osm_node_get_type(p_node) == IB_NODE_TYPE_SWITCH);
context.lft_context.node_guid = osm_node_get_node_guid(p_node);
context.lft_context.set_method = FALSE;
max_block_id_ho = osm_switch_get_max_block_id_in_use(p_sw);
p_physp = osm_node_get_physp_ptr(p_node, 0);
p_dr_path = osm_physp_get_dr_path_ptr(p_physp);
for (block_id_ho = 0; block_id_ho <= max_block_id_ho; block_id_ho++) {
OSM_LOG(sm->p_log, OSM_LOG_DEBUG,
"Retrieving FT block %u\n", block_id_ho);
status = osm_req_get(sm, p_dr_path, IB_MAD_ATTR_LIN_FWD_TBL,
cl_hton32(block_id_ho), TRUE, 0,
0, CL_DISP_MSGID_NONE, &context);
if (status != IB_SUCCESS)
/* continue the loop despite the error */
OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 3603: "
"Failure initiating PortInfo request (%s)\n",
ib_get_err_str(status));
}
OSM_LOG_EXIT(sm->p_log);
}
/**********************************************************************
The plock must be held before calling this function.
**********************************************************************/
static void si_rcv_get_mcast_fwd_tbl(IN osm_sm_t * sm, IN osm_switch_t * p_sw)
{
osm_madw_context_t context;
osm_dr_path_t *p_dr_path;
osm_physp_t *p_physp;
osm_node_t *p_node;
osm_mcast_tbl_t *p_tbl;
uint32_t block_id_ho;
uint32_t max_block_id_ho;
uint32_t position;
uint32_t max_position;
uint32_t attr_mod_ho;
ib_api_status_t status = IB_SUCCESS;
OSM_LOG_ENTER(sm->p_log);
CL_ASSERT(p_sw);
p_node = p_sw->p_node;
CL_ASSERT(osm_node_get_type(p_node) == IB_NODE_TYPE_SWITCH);
if (osm_switch_get_mcast_fwd_tbl_size(p_sw) == 0) {
OSM_LOG(sm->p_log, OSM_LOG_DEBUG,
"Multicast not supported by switch 0x%016" PRIx64 "\n",
cl_ntoh64(osm_node_get_node_guid(p_node)));
goto Exit;
}
context.mft_context.node_guid = osm_node_get_node_guid(p_node);
context.mft_context.set_method = FALSE;
p_tbl = osm_switch_get_mcast_tbl_ptr(p_sw);
max_block_id_ho = osm_mcast_tbl_get_max_block(p_tbl);
if (max_block_id_ho > IB_MCAST_MAX_BLOCK_ID) {
OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 3609: "
"Out-of-range mcast block size = %u on switch 0x%016"
PRIx64 "\n", max_block_id_ho,
cl_ntoh64(osm_node_get_node_guid(p_node)));
goto Exit;
}
max_position = osm_mcast_tbl_get_max_position(p_tbl);
CL_ASSERT(max_position <= IB_MCAST_POSITION_MAX);
OSM_LOG(sm->p_log, OSM_LOG_DEBUG,
"Max MFT block = %u, Max position = %u\n", max_block_id_ho,
max_position);
p_physp = osm_node_get_physp_ptr(p_node, 0);
p_dr_path = osm_physp_get_dr_path_ptr(p_physp);
for (block_id_ho = 0; block_id_ho <= max_block_id_ho; block_id_ho++) {
OSM_LOG(sm->p_log, OSM_LOG_DEBUG,
"Retrieving MFT block %u\n", block_id_ho);
for (position = 0; position <= max_position; position++) {
OSM_LOG(sm->p_log, OSM_LOG_DEBUG,
"Retrieving MFT position %u\n", position);
attr_mod_ho =
block_id_ho | position << IB_MCAST_POSITION_SHIFT;
status =
osm_req_get(sm, p_dr_path,
IB_MAD_ATTR_MCAST_FWD_TBL,
cl_hton32(attr_mod_ho), TRUE, 0,
0, CL_DISP_MSGID_NONE, &context);
if (status != IB_SUCCESS)
/* continue the loop despite the error */
OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 3607: "
"Failure initiating PortInfo request (%s)\n",
ib_get_err_str(status));
}
}
Exit:
OSM_LOG_EXIT(sm->p_log);
}
#endif
/**********************************************************************
Lock must be held on entry to this function.
**********************************************************************/
static void si_rcv_process_new(IN osm_sm_t * sm, IN osm_node_t * p_node,
IN const osm_madw_t * p_madw)
{
osm_switch_t *p_sw;
osm_switch_t *p_check;
ib_switch_info_t *p_si;
ib_smp_t *p_smp;
cl_qmap_t *p_sw_guid_tbl;
CL_ASSERT(sm);
OSM_LOG_ENTER(sm->p_log);
CL_ASSERT(p_madw);
p_sw_guid_tbl = &sm->p_subn->sw_guid_tbl;
p_smp = osm_madw_get_smp_ptr(p_madw);
p_si = ib_smp_get_payload_ptr(p_smp);
osm_dump_switch_info_v2(sm->p_log, p_si, FILE_ID, OSM_LOG_DEBUG);
p_sw = osm_switch_new(p_node, p_madw);
if (p_sw == NULL) {
OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 3608: "
"Unable to allocate new switch object\n");
goto Exit;
}
/* set subnet max mlid to the minimum MulticastFDBCap of all switches */
if (p_si->mcast_cap &&
cl_ntoh16(p_si->mcast_cap) + IB_LID_MCAST_START_HO - 1 <
sm->p_subn->max_mcast_lid_ho) {
sm->p_subn->max_mcast_lid_ho = cl_ntoh16(p_si->mcast_cap) +
IB_LID_MCAST_START_HO - 1;
OSM_LOG(sm->p_log, OSM_LOG_VERBOSE,
"Subnet max multicast lid is 0x%X\n",
sm->p_subn->max_mcast_lid_ho);
}
/* set subnet max unicast lid to the minimum LinearFDBCap of all switches */
if (cl_ntoh16(p_si->lin_cap) < sm->p_subn->max_ucast_lid_ho) {
sm->p_subn->max_ucast_lid_ho = cl_ntoh16(p_si->lin_cap);
OSM_LOG(sm->p_log, OSM_LOG_VERBOSE,
"Subnet max unicast lid is 0x%X\n",
sm->p_subn->max_ucast_lid_ho);
}
p_check = (osm_switch_t *) cl_qmap_insert(p_sw_guid_tbl,
osm_node_get_node_guid
(p_node), &p_sw->map_item);
if (p_check != p_sw) {
/* This shouldn't happen since we hold the lock! */
OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 3605: "
"Unable to add new switch object to database\n");
osm_switch_delete(&p_sw);
goto Exit;
}
p_node->sw = p_sw;
/* Update the switch info according to the info we just received. */
osm_switch_set_switch_info(p_sw, p_si);
#if 0
/* Don't bother retrieving the current unicast and multicast tables
from the switches. The current version of SM does
not support silent take-over of an existing multicast
configuration.
Gathering the multicast tables can also generate large amounts
of extra subnet-init traffic.
The code to retrieve the tables was fully debugged. */
si_rcv_get_fwd_tbl(sm, p_sw);
if (!sm->p_subn->opt.disable_multicast)
si_rcv_get_mcast_fwd_tbl(sm, p_sw);
#endif
Exit:
OSM_LOG_EXIT(sm->p_log);
}
/**********************************************************************
Lock must be held on entry to this function.
Return 1 if the caller is expected to send a change_detected event.
this can not be done internally as the event needs the lock...
**********************************************************************/
static boolean_t si_rcv_process_existing(IN osm_sm_t * sm,
IN osm_node_t * p_node,
IN const osm_madw_t * p_madw)
{
osm_switch_t *p_sw = p_node->sw;
ib_switch_info_t *p_si;
osm_si_context_t *p_si_context;
ib_smp_t *p_smp;
osm_epi_lft_change_event_t lft_change;
boolean_t is_change_detected = FALSE;
OSM_LOG_ENTER(sm->p_log);
CL_ASSERT(p_madw);
p_smp = osm_madw_get_smp_ptr(p_madw);
p_si = ib_smp_get_payload_ptr(p_smp);
p_si_context = osm_madw_get_si_context_ptr(p_madw);
OSM_LOG(sm->p_log, OSM_LOG_DEBUG, "Received logical %cetResp()\n",
p_si_context->set_method ? 'S' : 'G');
osm_switch_set_switch_info(p_sw, p_si);
if (p_si_context->light_sweep == TRUE && !p_si_context->set_method) {
/* If state changed bit is on the mad was returned with an
error - signal a change to the state manager. */
if (ib_smp_get_status(p_smp) != 0) {
OSM_LOG(sm->p_log, OSM_LOG_VERBOSE,
"GetResp() received with error in light sweep. "
"Commencing heavy sweep\n");
is_change_detected = TRUE;
} else if (ib_switch_info_get_state_change(p_si)) {
osm_dump_switch_info_v2(sm->p_log, p_si, FILE_ID, OSM_LOG_DEBUG);
is_change_detected = TRUE;
}
}
if (sm->p_subn->first_time_master_sweep == FALSE &&
p_si_context->set_method && p_si_context->lft_top_change) {
lft_change.p_sw = p_sw;
lft_change.flags = LFT_CHANGED_LFT_TOP;
lft_change.lft_top = cl_ntoh16(p_si->lin_top);
lft_change.block_num = 0;
osm_opensm_report_event(sm->p_subn->p_osm,
OSM_EVENT_ID_LFT_CHANGE,
&lft_change);
}
OSM_LOG_EXIT(sm->p_log);
return is_change_detected;
}
static void si_rcv_get_sp0_info(IN osm_sm_t * sm, IN osm_node_t * node)
{
osm_madw_context_t context;
osm_physp_t *physp;
ib_api_status_t status;
int mlnx_epi_supported = 0;
physp = osm_node_get_physp_ptr(node, 0);
context.pi_context.node_guid = osm_node_get_node_guid(node);
context.pi_context.port_guid = osm_physp_get_port_guid(physp);
context.pi_context.set_method = FALSE;
context.pi_context.light_sweep = FALSE;
context.pi_context.active_transition = FALSE;
context.pi_context.client_rereg = FALSE;
status = osm_req_get(sm, osm_physp_get_dr_path_ptr(physp),
IB_MAD_ATTR_PORT_INFO, 0, TRUE, 0,
0, CL_DISP_MSGID_NONE, &context);
if (status != IB_SUCCESS)
OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 3611: "
"Failure initiating PortInfo request (%s)\n",
ib_get_err_str(status));
if (ib_switch_info_is_enhanced_port0(&node->sw->switch_info) &&
sm->p_subn->opt.fdr10) {
mlnx_epi_supported = is_mlnx_ext_port_info_supported(
ib_node_info_get_vendor_id(&node->node_info),
node->node_info.device_id);
if (mlnx_epi_supported) {
status = osm_req_get(sm,
osm_physp_get_dr_path_ptr(physp),
IB_MAD_ATTR_MLNX_EXTENDED_PORT_INFO,
0, TRUE, 0, 0,
CL_DISP_MSGID_NONE, &context);
if (status != IB_SUCCESS)
OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 3616: "
"Failure initiating MLNX ExtPortInfo request (%s)\n",
ib_get_err_str(status));
}
}
}
void osm_si_rcv_process(IN void *context, IN void *data)
{
osm_sm_t *sm = context;
osm_madw_t *p_madw = data;
ib_switch_info_t *p_si;
ib_smp_t *p_smp;
osm_node_t *p_node;
ib_net64_t node_guid;
osm_si_context_t *p_context;
CL_ASSERT(sm);
OSM_LOG_ENTER(sm->p_log);
CL_ASSERT(p_madw);
p_smp = osm_madw_get_smp_ptr(p_madw);
p_si = ib_smp_get_payload_ptr(p_smp);
p_context = osm_madw_get_si_context_ptr(p_madw);
node_guid = p_context->node_guid;
OSM_LOG(sm->p_log, OSM_LOG_DEBUG,
"Switch GUID 0x%016" PRIx64 ", TID 0x%" PRIx64 "\n",
cl_ntoh64(node_guid), cl_ntoh64(p_smp->trans_id));
if (ib_smp_get_status(p_smp)) {
OSM_LOG(sm->p_log, OSM_LOG_DEBUG,
"MAD status 0x%x received\n",
cl_ntoh16(ib_smp_get_status(p_smp)));
goto Exit2;
}
CL_PLOCK_EXCL_ACQUIRE(sm->p_lock);
p_node = osm_get_node_by_guid(sm->p_subn, node_guid);
if (!p_node) {
CL_PLOCK_RELEASE(sm->p_lock);
OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 3606: "
"SwitchInfo received for nonexistent node "
"with GUID 0x%" PRIx64 "\n", cl_ntoh64(node_guid));
goto Exit;
}
/* Hack for bad value in Mellanox switch */
if (cl_ntoh16(p_si->lin_top) > IB_LID_UCAST_END_HO) {
OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 3610: "
"\n\t\t\t\tBad LinearFDBTop value = 0x%X "
"on switch 0x%" PRIx64
"\n\t\t\t\tForcing internal correction to 0x%X\n",
cl_ntoh16(p_si->lin_top),
cl_ntoh64(osm_node_get_node_guid(p_node)), 0);
p_si->lin_top = 0;
}
/* Acquire the switch object for this switch. */
if (!p_node->sw) {
si_rcv_process_new(sm, p_node, p_madw);
/* A new switch was found during the sweep so we need
to ignore the current LFT settings. */
sm->p_subn->ignore_existing_lfts = TRUE;
} else if (si_rcv_process_existing(sm, p_node, p_madw))
/* we might get back a request for signaling change was detected */
sm->p_subn->force_heavy_sweep = TRUE;
if (p_context->light_sweep || p_context->set_method)
goto Exit;
si_rcv_get_sp0_info(sm, p_node);
Exit:
CL_PLOCK_RELEASE(sm->p_lock);
Exit2:
OSM_LOG_EXIT(sm->p_log);
}