1 /*
2 * Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved.
3 * Copyright (c) 2002-2005,2008 Mellanox Technologies LTD. All rights reserved.
4 * Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
5 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
6 *
7 * This software is available to you under a choice of one of two
8 * licenses. You may choose to be licensed under the terms of the GNU
9 * General Public License (GPL) Version 2, available from the file
10 * COPYING in the main directory of this source tree, or the
11 * OpenIB.org BSD license below:
12 *
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
15 * conditions are met:
16 *
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer.
20 *
21 * - Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimer in the documentation and/or other materials
24 * provided with the distribution.
25 *
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 * SOFTWARE.
34 *
35 */
36
37 /*
38 * Abstract:
39 * Implementation of osm_lftr_rcv_t.
40 * This object represents the LinearForwardingTable Receiver object.
41 * This object is part of the opensm family of objects.
42 */
43
44 #if HAVE_CONFIG_H
45 # include <config.h>
46 #endif /* HAVE_CONFIG_H */
47
48 #include <string.h>
49 #include <iba/ib_types.h>
50 #include <complib/cl_debug.h>
51 #include <complib/cl_qlist.h>
52 #include <opensm/osm_file_ids.h>
53 #define FILE_ID OSM_FILE_SA_LFT_RECORD_C
54 #include <vendor/osm_vendor_api.h>
55 #include <opensm/osm_switch.h>
56 #include <opensm/osm_helper.h>
57 #include <opensm/osm_pkey.h>
58 #include <opensm/osm_sa.h>
59
60 #define SA_LFTR_RESP_SIZE SA_ITEM_RESP_SIZE(lft_rec)
61
62 typedef struct osm_lftr_search_ctxt {
63 const ib_lft_record_t *p_rcvd_rec;
64 ib_net64_t comp_mask;
65 cl_qlist_t *p_list;
66 osm_sa_t *sa;
67 const osm_physp_t *p_req_physp;
68 } osm_lftr_search_ctxt_t;
69
lftr_rcv_new_lftr(IN osm_sa_t * sa,IN const osm_switch_t * p_sw,IN cl_qlist_t * p_list,IN ib_net16_t lid,IN uint16_t block)70 static ib_api_status_t lftr_rcv_new_lftr(IN osm_sa_t * sa,
71 IN const osm_switch_t * p_sw,
72 IN cl_qlist_t * p_list,
73 IN ib_net16_t lid, IN uint16_t block)
74 {
75 osm_sa_item_t *p_rec_item;
76 ib_api_status_t status = IB_SUCCESS;
77
78 OSM_LOG_ENTER(sa->p_log);
79
80 p_rec_item = malloc(SA_LFTR_RESP_SIZE);
81 if (p_rec_item == NULL) {
82 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4402: "
83 "rec_item alloc failed\n");
84 status = IB_INSUFFICIENT_RESOURCES;
85 goto Exit;
86 }
87
88 OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
89 "New LinearForwardingTable: sw 0x%016" PRIx64
90 "\n\t\t\t\tblock 0x%02X lid %u\n",
91 cl_ntoh64(osm_node_get_node_guid(p_sw->p_node)),
92 block, cl_ntoh16(lid));
93
94 memset(p_rec_item, 0, SA_LFTR_RESP_SIZE);
95
96 p_rec_item->resp.lft_rec.lid = lid;
97 p_rec_item->resp.lft_rec.block_num = cl_hton16(block);
98
99 /* copy the lft block */
100 osm_switch_get_lft_block(p_sw, block, p_rec_item->resp.lft_rec.lft);
101
102 cl_qlist_insert_tail(p_list, &p_rec_item->list_item);
103
104 Exit:
105 OSM_LOG_EXIT(sa->p_log);
106 return status;
107 }
108
lftr_rcv_by_comp_mask(IN cl_map_item_t * p_map_item,IN void * cxt)109 static void lftr_rcv_by_comp_mask(IN cl_map_item_t * p_map_item, IN void *cxt)
110 {
111 const osm_lftr_search_ctxt_t *p_ctxt = cxt;
112 const osm_switch_t *p_sw = (osm_switch_t *) p_map_item;
113 const ib_lft_record_t *const p_rcvd_rec = p_ctxt->p_rcvd_rec;
114 osm_sa_t *sa = p_ctxt->sa;
115 ib_net64_t const comp_mask = p_ctxt->comp_mask;
116 const osm_physp_t *const p_req_physp = p_ctxt->p_req_physp;
117 osm_port_t *p_port;
118 uint16_t min_lid_ho, max_lid_ho;
119 uint16_t min_block, max_block, block;
120 const osm_physp_t *p_physp;
121
122 /* In switches, the port guid is the node guid. */
123 p_port = osm_get_port_by_guid(sa->p_subn,
124 p_sw->p_node->node_info.port_guid);
125 if (!p_port) {
126 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4405: "
127 "Failed to find Port by Node Guid:0x%016" PRIx64
128 "\n", cl_ntoh64(p_sw->p_node->node_info.node_guid));
129 return;
130 }
131
132 /* check that the requester physp and the current physp are under
133 the same partition. */
134 p_physp = p_port->p_physp;
135 if (!p_physp) {
136 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4406: "
137 "Failed to find default physical Port by Node Guid:0x%016"
138 PRIx64 "\n",
139 cl_ntoh64(p_sw->p_node->node_info.node_guid));
140 return;
141 }
142 if (!osm_physp_share_pkey(sa->p_log, p_req_physp,
143 p_physp, sa->p_subn->opt.allow_both_pkeys))
144 return;
145
146 /* get the port 0 of the switch */
147 osm_port_get_lid_range_ho(p_port, &min_lid_ho, &max_lid_ho);
148
149 /* compare the lids - if required */
150 if (comp_mask & IB_LFTR_COMPMASK_LID) {
151 OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
152 "Comparing lid:%u to port lid range: %u .. %u\n",
153 cl_ntoh16(p_rcvd_rec->lid), min_lid_ho, max_lid_ho);
154 /* ok we are ready for range check */
155 if (min_lid_ho > cl_ntoh16(p_rcvd_rec->lid) ||
156 max_lid_ho < cl_ntoh16(p_rcvd_rec->lid))
157 return;
158 }
159
160 /* now we need to decide which blocks to output */
161 max_block = osm_switch_get_max_block_id_in_use(p_sw);
162 if (comp_mask & IB_LFTR_COMPMASK_BLOCK) {
163 min_block = cl_ntoh16(p_rcvd_rec->block_num);
164 if (min_block > max_block)
165 return;
166 max_block = min_block;
167 } else /* use as many blocks as "in use" */
168 min_block = 0;
169
170 /* so we can add these blocks one by one ... */
171 for (block = min_block; block <= max_block; block++)
172 lftr_rcv_new_lftr(sa, p_sw, p_ctxt->p_list,
173 osm_port_get_base_lid(p_port), block);
174 }
175
osm_lftr_rcv_process(IN void * ctx,IN void * data)176 void osm_lftr_rcv_process(IN void *ctx, IN void *data)
177 {
178 osm_sa_t *sa = ctx;
179 osm_madw_t *p_madw = data;
180 const ib_sa_mad_t *p_rcvd_mad;
181 const ib_lft_record_t *p_rcvd_rec;
182 cl_qlist_t rec_list;
183 osm_lftr_search_ctxt_t context;
184 osm_physp_t *p_req_physp;
185
186 CL_ASSERT(sa);
187
188 OSM_LOG_ENTER(sa->p_log);
189
190 CL_ASSERT(p_madw);
191
192 p_rcvd_mad = osm_madw_get_sa_mad_ptr(p_madw);
193 p_rcvd_rec = (ib_lft_record_t *) ib_sa_mad_get_payload_ptr(p_rcvd_mad);
194
195 CL_ASSERT(p_rcvd_mad->attr_id == IB_MAD_ATTR_LFT_RECORD);
196
197 /* we only support SubnAdmGet and SubnAdmGetTable methods */
198 if (p_rcvd_mad->method != IB_MAD_METHOD_GET &&
199 p_rcvd_mad->method != IB_MAD_METHOD_GETTABLE) {
200 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4408: "
201 "Unsupported Method (%s) for LFTRecord request\n",
202 ib_get_sa_method_str(p_rcvd_mad->method));
203 osm_sa_send_error(sa, p_madw, IB_MAD_STATUS_UNSUP_METHOD_ATTR);
204 goto Exit;
205 }
206
207 cl_plock_acquire(sa->p_lock);
208
209 /* update the requester physical port */
210 p_req_physp = osm_get_physp_by_mad_addr(sa->p_log, sa->p_subn,
211 osm_madw_get_mad_addr_ptr
212 (p_madw));
213 if (p_req_physp == NULL) {
214 cl_plock_release(sa->p_lock);
215 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4407: "
216 "Cannot find requester physical port\n");
217 goto Exit;
218 }
219
220 OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
221 "Requester port GUID 0x%" PRIx64 "\n",
222 cl_ntoh64(osm_physp_get_port_guid(p_req_physp)));
223
224 cl_qlist_init(&rec_list);
225
226 context.p_rcvd_rec = p_rcvd_rec;
227 context.p_list = &rec_list;
228 context.comp_mask = p_rcvd_mad->comp_mask;
229 context.sa = sa;
230 context.p_req_physp = p_req_physp;
231
232 /* Go over all switches */
233 cl_qmap_apply_func(&sa->p_subn->sw_guid_tbl, lftr_rcv_by_comp_mask,
234 &context);
235
236 cl_plock_release(sa->p_lock);
237
238 osm_sa_respond(sa, p_madw, sizeof(ib_lft_record_t), &rec_list);
239
240 Exit:
241 OSM_LOG_EXIT(sa->p_log);
242 }
243