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/*
* Copyright (c) 2004-2008 Voltaire, Inc. All rights reserved.
* Copyright (c) 2002-2006 Mellanox Technologies LTD. All rights reserved.
* Copyright (c) 1996-2003 Intel Corporation. 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 the P_Key Manager (Partititon Manager).
* This is part of the OpenSM.
*/
#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_debug.h>
#include <opensm/osm_node.h>
#include <opensm/osm_switch.h>
#include <opensm/osm_partition.h>
#include <opensm/osm_opensm.h>
/**********************************************************************
**********************************************************************/
/*
The max number of pkey blocks for a physical port is located in
a different place for switch external ports (SwitchInfo) and the
rest of the ports (NodeInfo).
*/
static uint16_t
pkey_mgr_get_physp_max_blocks(IN const osm_subn_t * p_subn,
IN const osm_physp_t * p_physp)
{
osm_node_t *p_node = osm_physp_get_node_ptr(p_physp);
uint16_t num_pkeys = 0;
if (!p_node->sw || (osm_physp_get_port_num(p_physp) == 0))
num_pkeys = cl_ntoh16(p_node->node_info.partition_cap);
else
num_pkeys = cl_ntoh16(p_node->sw->switch_info.enforce_cap);
return ((num_pkeys + 31) / 32);
}
/**********************************************************************
**********************************************************************/
/*
* Insert new pending pkey entry to the specific port pkey table
* pending pkeys. New entries are inserted at the back.
*/
static void
pkey_mgr_process_physical_port(IN osm_log_t * p_log,
IN osm_sm_t * sm,
IN const ib_net16_t pkey,
IN osm_physp_t * p_physp)
{
osm_node_t *p_node = osm_physp_get_node_ptr(p_physp);
osm_pkey_tbl_t *p_pkey_tbl;
ib_net16_t *p_orig_pkey;
char *stat = NULL;
osm_pending_pkey_t *p_pending;
p_pkey_tbl = &p_physp->pkeys;
p_pending = (osm_pending_pkey_t *) malloc(sizeof(osm_pending_pkey_t));
if (!p_pending) {
OSM_LOG(p_log, OSM_LOG_ERROR, "ERR 0502: "
"Failed to allocate new pending pkey entry for node "
"0x%016" PRIx64 " port %u\n",
cl_ntoh64(osm_node_get_node_guid(p_node)),
osm_physp_get_port_num(p_physp));
return;
}
p_pending->pkey = pkey;
p_orig_pkey = cl_map_get(&p_pkey_tbl->keys, ib_pkey_get_base(pkey));
if (!p_orig_pkey) {
p_pending->is_new = TRUE;
cl_qlist_insert_tail(&p_pkey_tbl->pending,
(cl_list_item_t *) p_pending);
stat = "inserted";
} else {
CL_ASSERT(ib_pkey_get_base(*p_orig_pkey) ==
ib_pkey_get_base(pkey));
p_pending->is_new = FALSE;
if (osm_pkey_tbl_get_block_and_idx(p_pkey_tbl, p_orig_pkey,
&p_pending->block,
&p_pending->index) !=
IB_SUCCESS) {
OSM_LOG(p_log, OSM_LOG_ERROR, "ERR 0503: "
"Failed to obtain P_Key 0x%04x block and index for node "
"0x%016" PRIx64 " port %u\n",
ib_pkey_get_base(pkey),
cl_ntoh64(osm_node_get_node_guid(p_node)),
osm_physp_get_port_num(p_physp));
return;
}
cl_qlist_insert_head(&p_pkey_tbl->pending,
(cl_list_item_t *) p_pending);
stat = "updated";
}
OSM_LOG(p_log, OSM_LOG_DEBUG,
"pkey 0x%04x was %s for node 0x%016" PRIx64 " port %u\n",
cl_ntoh16(pkey), stat,
cl_ntoh64(osm_node_get_node_guid(p_node)),
osm_physp_get_port_num(p_physp));
}
/**********************************************************************
**********************************************************************/
static void
pkey_mgr_process_partition_table(osm_log_t * p_log, osm_sm_t * sm,
const osm_prtn_t * p_prtn,
const boolean_t full)
{
const cl_map_t *p_tbl =
full ? &p_prtn->full_guid_tbl : &p_prtn->part_guid_tbl;
cl_map_iterator_t i, i_next;
ib_net16_t pkey = p_prtn->pkey;
osm_physp_t *p_physp;
if (full)
pkey |= cl_hton16(0x8000);
i_next = cl_map_head(p_tbl);
while (i_next != cl_map_end(p_tbl)) {
i = i_next;
i_next = cl_map_next(i);
p_physp = cl_map_obj(i);
if (p_physp)
pkey_mgr_process_physical_port(p_log, sm, pkey,
p_physp);
}
}
/**********************************************************************
**********************************************************************/
static ib_api_status_t
pkey_mgr_update_pkey_entry(IN osm_sm_t * sm,
IN const osm_physp_t * p_physp,
IN const ib_pkey_table_t * block,
IN const uint16_t block_index)
{
osm_madw_context_t context;
osm_node_t *p_node = osm_physp_get_node_ptr(p_physp);
uint32_t attr_mod;
context.pkey_context.node_guid = osm_node_get_node_guid(p_node);
context.pkey_context.port_guid = osm_physp_get_port_guid(p_physp);
context.pkey_context.set_method = TRUE;
attr_mod = block_index;
if (osm_node_get_type(p_node) == IB_NODE_TYPE_SWITCH)
attr_mod |= osm_physp_get_port_num(p_physp) << 16;
return osm_req_set(sm, osm_physp_get_dr_path_ptr(p_physp),
(uint8_t *) block, sizeof(*block),
IB_MAD_ATTR_P_KEY_TABLE,
cl_hton32(attr_mod), CL_DISP_MSGID_NONE, &context);
}
/**********************************************************************
**********************************************************************/
static boolean_t
pkey_mgr_enforce_partition(IN osm_log_t * p_log, osm_sm_t * sm,
IN osm_physp_t * p_physp, IN const boolean_t enforce)
{
osm_madw_context_t context;
uint8_t payload[IB_SMP_DATA_SIZE];
ib_port_info_t *p_pi;
ib_api_status_t status;
p_pi = &p_physp->port_info;
if ((p_pi->vl_enforce & 0xc) == (0xc) * (enforce == TRUE)) {
OSM_LOG(p_log, OSM_LOG_DEBUG,
"No need to update PortInfo for "
"node 0x%016" PRIx64 " port %u\n",
cl_ntoh64(osm_node_get_node_guid
(osm_physp_get_node_ptr(p_physp))),
osm_physp_get_port_num(p_physp));
return FALSE;
}
memset(payload, 0, IB_SMP_DATA_SIZE);
memcpy(payload, p_pi, sizeof(ib_port_info_t));
p_pi = (ib_port_info_t *) payload;
if (enforce == TRUE)
p_pi->vl_enforce |= 0xc;
else
p_pi->vl_enforce &= ~0xc;
p_pi->state_info2 = 0;
ib_port_info_set_port_state(p_pi, IB_LINK_NO_CHANGE);
context.pi_context.node_guid =
osm_node_get_node_guid(osm_physp_get_node_ptr(p_physp));
context.pi_context.port_guid = osm_physp_get_port_guid(p_physp);
context.pi_context.set_method = TRUE;
context.pi_context.light_sweep = FALSE;
context.pi_context.active_transition = FALSE;
status = osm_req_set(sm, osm_physp_get_dr_path_ptr(p_physp),
payload, sizeof(payload),
IB_MAD_ATTR_PORT_INFO,
cl_hton32(osm_physp_get_port_num(p_physp)),
CL_DISP_MSGID_NONE, &context);
if (status != IB_SUCCESS) {
OSM_LOG(p_log, OSM_LOG_ERROR, "ERR 0511: "
"Failed to set PortInfo for "
"node 0x%016" PRIx64 " port %u\n",
cl_ntoh64(osm_node_get_node_guid
(osm_physp_get_node_ptr(p_physp))),
osm_physp_get_port_num(p_physp));
return FALSE;
} else {
OSM_LOG(p_log, OSM_LOG_DEBUG,
"Set PortInfo for node 0x%016" PRIx64 " port %u\n",
cl_ntoh64(osm_node_get_node_guid
(osm_physp_get_node_ptr(p_physp))),
osm_physp_get_port_num(p_physp));
return TRUE;
}
}
/**********************************************************************
**********************************************************************/
static boolean_t pkey_mgr_update_port(osm_log_t * p_log, osm_sm_t * sm,
const osm_port_t * const p_port)
{
osm_physp_t *p_physp;
osm_node_t *p_node;
ib_pkey_table_t *block, *new_block;
osm_pkey_tbl_t *p_pkey_tbl;
uint16_t block_index;
uint8_t pkey_index;
uint16_t last_free_block_index = 0;
uint8_t last_free_pkey_index = 0;
uint16_t num_of_blocks;
uint16_t max_num_of_blocks;
ib_api_status_t status;
boolean_t ret_val = FALSE;
osm_pending_pkey_t *p_pending;
boolean_t found;
ib_pkey_table_t empty_block;
memset(&empty_block, 0, sizeof(ib_pkey_table_t));
p_physp = p_port->p_physp;
if (!p_physp)
return FALSE;
p_node = osm_physp_get_node_ptr(p_physp);
p_pkey_tbl = &p_physp->pkeys;
num_of_blocks = osm_pkey_tbl_get_num_blocks(p_pkey_tbl);
max_num_of_blocks =
pkey_mgr_get_physp_max_blocks(sm->p_subn, p_physp);
if (p_pkey_tbl->max_blocks > max_num_of_blocks) {
OSM_LOG(p_log, OSM_LOG_INFO,
"Max number of blocks reduced from %u to %u "
"for node 0x%016" PRIx64 " port %u\n",
p_pkey_tbl->max_blocks, max_num_of_blocks,
cl_ntoh64(osm_node_get_node_guid(p_node)),
osm_physp_get_port_num(p_physp));
}
p_pkey_tbl->max_blocks = max_num_of_blocks;
osm_pkey_tbl_init_new_blocks(p_pkey_tbl);
p_pkey_tbl->used_blocks = 0;
/*
process every pending pkey in order -
first must be "updated" last are "new"
*/
p_pending =
(osm_pending_pkey_t *) cl_qlist_remove_head(&p_pkey_tbl->pending);
while (p_pending !=
(osm_pending_pkey_t *) cl_qlist_end(&p_pkey_tbl->pending)) {
if (p_pending->is_new == FALSE) {
block_index = p_pending->block;
pkey_index = p_pending->index;
found = TRUE;
} else {
found = osm_pkey_find_next_free_entry(p_pkey_tbl,
&last_free_block_index,
&last_free_pkey_index);
if (!found) {
OSM_LOG(p_log, OSM_LOG_ERROR, "ERR 0504: "
"Failed to find empty space for new pkey 0x%04x "
"for node 0x%016" PRIx64 " port %u\n",
cl_ntoh16(p_pending->pkey),
cl_ntoh64(osm_node_get_node_guid
(p_node)),
osm_physp_get_port_num(p_physp));
} else {
block_index = last_free_block_index;
pkey_index = last_free_pkey_index++;
}
}
if (found) {
if (IB_SUCCESS !=
osm_pkey_tbl_set_new_entry(p_pkey_tbl, block_index,
pkey_index,
p_pending->pkey)) {
OSM_LOG(p_log, OSM_LOG_ERROR, "ERR 0505: "
"Failed to set PKey 0x%04x in block %u idx %u "
"for node 0x%016" PRIx64 " port %u\n",
cl_ntoh16(p_pending->pkey), block_index,
pkey_index,
cl_ntoh64(osm_node_get_node_guid
(p_node)),
osm_physp_get_port_num(p_physp));
}
}
free(p_pending);
p_pending =
(osm_pending_pkey_t *) cl_qlist_remove_head(&p_pkey_tbl->
pending);
}
/* now look for changes and store */
for (block_index = 0; block_index < num_of_blocks; block_index++) {
block = osm_pkey_tbl_block_get(p_pkey_tbl, block_index);
new_block = osm_pkey_tbl_new_block_get(p_pkey_tbl, block_index);
if (!new_block)
new_block = &empty_block;
if (block && !memcmp(new_block, block, sizeof(*block)))
continue;
status =
pkey_mgr_update_pkey_entry(sm, p_physp, new_block,
block_index);
if (status == IB_SUCCESS) {
OSM_LOG(p_log, OSM_LOG_DEBUG,
"Updated pkey table block %d for node 0x%016"
PRIx64 " port %u\n", block_index,
cl_ntoh64(osm_node_get_node_guid(p_node)),
osm_physp_get_port_num(p_physp));
ret_val = TRUE;
} else {
OSM_LOG(p_log, OSM_LOG_ERROR, "ERR 0506: "
"pkey_mgr_update_pkey_entry() failed to update "
"pkey table block %d for node 0x%016" PRIx64
" port %u\n", block_index,
cl_ntoh64(osm_node_get_node_guid(p_node)),
osm_physp_get_port_num(p_physp));
}
}
return ret_val;
}
/**********************************************************************
**********************************************************************/
static boolean_t
pkey_mgr_update_peer_port(osm_log_t * p_log, osm_sm_t * sm,
const osm_subn_t * p_subn,
const osm_port_t * const p_port, boolean_t enforce)
{
osm_physp_t *p_physp, *peer;
osm_node_t *p_node;
ib_pkey_table_t *block, *peer_block;
const osm_pkey_tbl_t *p_pkey_tbl;
osm_pkey_tbl_t *p_peer_pkey_tbl;
uint16_t block_index;
uint16_t num_of_blocks;
uint16_t peer_max_blocks;
ib_api_status_t status = IB_SUCCESS;
boolean_t ret_val = FALSE;
boolean_t port_info_set = FALSE;
ib_pkey_table_t empty_block;
memset(&empty_block, 0, sizeof(ib_pkey_table_t));
p_physp = p_port->p_physp;
if (!p_physp)
return FALSE;
peer = osm_physp_get_remote(p_physp);
if (!peer)
return FALSE;
p_node = osm_physp_get_node_ptr(peer);
if (!p_node->sw || !p_node->sw->switch_info.enforce_cap)
return FALSE;
p_pkey_tbl = osm_physp_get_pkey_tbl(p_physp);
p_peer_pkey_tbl = &peer->pkeys;
num_of_blocks = osm_pkey_tbl_get_num_blocks(p_pkey_tbl);
peer_max_blocks = pkey_mgr_get_physp_max_blocks(p_subn, peer);
if (peer_max_blocks < p_pkey_tbl->used_blocks) {
OSM_LOG(p_log, OSM_LOG_ERROR, "ERR 0508: "
"Not enough pkey entries (%u < %u) on switch 0x%016"
PRIx64 " port %u. Clearing Enforcement bit\n",
peer_max_blocks, num_of_blocks,
cl_ntoh64(osm_node_get_node_guid(p_node)),
osm_physp_get_port_num(peer));
enforce = FALSE;
}
if (pkey_mgr_enforce_partition(p_log, sm, peer, enforce))
port_info_set = TRUE;
if (enforce == FALSE)
return port_info_set;
p_peer_pkey_tbl->used_blocks = p_pkey_tbl->used_blocks;
for (block_index = 0; block_index < p_pkey_tbl->used_blocks;
block_index++) {
block = osm_pkey_tbl_new_block_get(p_pkey_tbl, block_index);
if (!block)
block = &empty_block;
peer_block =
osm_pkey_tbl_block_get(p_peer_pkey_tbl, block_index);
if (!peer_block
|| memcmp(peer_block, block, sizeof(*peer_block))) {
status =
pkey_mgr_update_pkey_entry(sm, peer, block,
block_index);
if (status == IB_SUCCESS)
ret_val = TRUE;
else
OSM_LOG(p_log, OSM_LOG_ERROR, "ERR 0509: "
"pkey_mgr_update_pkey_entry() failed to update "
"pkey table block %d for node 0x%016"
PRIx64 " port %u\n", block_index,
cl_ntoh64(osm_node_get_node_guid
(p_node)),
osm_physp_get_port_num(peer));
}
}
if (ret_val)
OSM_LOG(p_log, OSM_LOG_DEBUG,
"Pkey table was updated for node 0x%016" PRIx64
" port %u\n",
cl_ntoh64(osm_node_get_node_guid(p_node)),
osm_physp_get_port_num(peer));
if (port_info_set)
return TRUE;
return ret_val;
}
/**********************************************************************
**********************************************************************/
osm_signal_t osm_pkey_mgr_process(IN osm_opensm_t * p_osm)
{
cl_qmap_t *p_tbl;
cl_map_item_t *p_next;
osm_prtn_t *p_prtn;
osm_port_t *p_port;
osm_signal_t signal = OSM_SIGNAL_DONE;
CL_ASSERT(p_osm);
OSM_LOG_ENTER(&p_osm->log);
CL_PLOCK_EXCL_ACQUIRE(&p_osm->lock);
if (osm_prtn_make_partitions(&p_osm->log, &p_osm->subn) != IB_SUCCESS) {
OSM_LOG(&p_osm->log, OSM_LOG_ERROR, "ERR 0510: "
"osm_prtn_make_partitions() failed\n");
goto _err;
}
/* populate the pending pkey entries by scanning all partitions */
p_tbl = &p_osm->subn.prtn_pkey_tbl;
p_next = cl_qmap_head(p_tbl);
while (p_next != cl_qmap_end(p_tbl)) {
p_prtn = (osm_prtn_t *) p_next;
p_next = cl_qmap_next(p_next);
pkey_mgr_process_partition_table(&p_osm->log, &p_osm->sm,
p_prtn, FALSE);
pkey_mgr_process_partition_table(&p_osm->log, &p_osm->sm,
p_prtn, TRUE);
}
/* calculate and set new pkey tables */
p_tbl = &p_osm->subn.port_guid_tbl;
p_next = cl_qmap_head(p_tbl);
while (p_next != cl_qmap_end(p_tbl)) {
p_port = (osm_port_t *) p_next;
p_next = cl_qmap_next(p_next);
if (pkey_mgr_update_port(&p_osm->log, &p_osm->sm, p_port))
signal = OSM_SIGNAL_DONE_PENDING;
if ((osm_node_get_type(p_port->p_node) != IB_NODE_TYPE_SWITCH)
&& pkey_mgr_update_peer_port(&p_osm->log, &p_osm->sm,
&p_osm->subn, p_port,
!p_osm->subn.opt.
no_partition_enforcement))
signal = OSM_SIGNAL_DONE_PENDING;
}
_err:
CL_PLOCK_RELEASE(&p_osm->lock);
OSM_LOG_EXIT(&p_osm->log);
return (signal);
}