4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library.
23 * Copyright (c) 2014, 2017, Intel Corporation.
26 * Author: Amir Shehata <amir.shehata@intel.com>
29 #ifndef __UAPI_LNET_DLC_H_
30 #define __UAPI_LNET_DLC_H_
32 #include <linux/types.h>
33 #include <linux/lnet/libcfs_ioctl.h>
34 #include <linux/lnet/lnet-types.h>
36 #define MAX_NUM_SHOW_ENTRIES 32
37 #define LNET_MAX_STR_LEN 128
38 #define LNET_MAX_SHOW_NUM_CPT 128
39 #define LNET_MAX_SHOW_NUM_NID 128
40 #define LNET_UNDEFINED_HOPS ((__u32) -1)
42 #define LNET_RT_ALIVE (1 << 0)
43 #define LNET_RT_MULTI_HOP (1 << 1)
46 * sparse kernel source annotations
53 * To allow for future enhancements to extend the tunables
54 * add a hdr to this structure, so that the version can be set
55 * and checked for backwards compatibility. Newer versions of LNet
56 * can still work with older versions of lnetctl. The restriction is
57 * that the structure can be added to and not removed from in order
58 * to not invalidate older lnetctl utilities. Moreover, the order of
59 * fields must remain the same, and new fields appended to the structure
61 * That said all existing LND tunables will be added in this structure
62 * to avoid future changes.
64 struct lnet_ioctl_config_lnd_cmn_tunables {
66 __s32 lct_peer_timeout;
67 __s32 lct_peer_tx_credits;
68 __s32 lct_peer_rtr_credits;
69 __s32 lct_max_tx_credits;
72 struct lnet_ioctl_config_o2iblnd_tunables {
74 __u32 lnd_peercredits_hiw;
75 __u32 lnd_map_on_demand;
76 __u32 lnd_concurrent_sends;
77 __u32 lnd_fmr_pool_size;
78 __u32 lnd_fmr_flush_trigger;
80 __u16 lnd_conns_per_peer;
84 struct lnet_ioctl_config_socklnd_tunables {
86 __u16 lnd_conns_per_peer;
90 struct lnet_lnd_tunables {
92 struct lnet_ioctl_config_o2iblnd_tunables lnd_o2ib;
93 struct lnet_ioctl_config_socklnd_tunables lnd_sock;
97 struct lnet_ioctl_config_lnd_tunables {
98 struct lnet_ioctl_config_lnd_cmn_tunables lt_cmn;
99 struct lnet_lnd_tunables lt_tun;
102 struct lnet_ioctl_net_config {
103 char ni_interface[LNET_MAX_STR_LEN];
105 __u32 ni_cpts[LNET_MAX_SHOW_NUM_CPT];
109 #define LNET_TINY_BUF_IDX 0
110 #define LNET_SMALL_BUF_IDX 1
111 #define LNET_LARGE_BUF_IDX 2
113 /* # different router buffer pools */
114 #define LNET_NRBPOOLS (LNET_LARGE_BUF_IDX + 1)
116 struct lnet_ioctl_pool_cfg {
122 } pl_pools[LNET_NRBPOOLS];
126 struct lnet_ioctl_ping_data {
127 struct libcfs_ioctl_hdr ping_hdr;
133 struct lnet_process_id ping_id;
134 struct lnet_process_id __user *ping_buf;
138 struct lnet_ioctl_config_data {
139 struct libcfs_ioctl_hdr cfg_hdr;
151 __u32 rtr_sensitivity;
154 char net_intf[LNET_MAX_STR_LEN];
155 __s32 net_peer_timeout;
156 __s32 net_peer_tx_credits;
157 __s32 net_peer_rtr_credits;
158 __s32 net_max_tx_credits;
159 __u32 net_cksum_algo;
160 __u32 net_interface_count;
173 struct lnet_ioctl_comm_count {
176 __u32 ico_reply_count;
178 __u32 ico_hello_count;
181 struct lnet_ioctl_element_stats {
182 __u32 iel_send_count;
183 __u32 iel_recv_count;
184 __u32 iel_drop_count;
187 enum lnet_health_type {
188 LNET_HEALTH_TYPE_LOCAL_NI = 0,
189 LNET_HEALTH_TYPE_PEER_NI,
192 struct lnet_ioctl_local_ni_hstats {
193 struct libcfs_ioctl_hdr hlni_hdr;
195 __u32 hlni_local_interrupt;
196 __u32 hlni_local_dropped;
197 __u32 hlni_local_aborted;
198 __u32 hlni_local_no_route;
199 __u32 hlni_local_timeout;
200 __u32 hlni_local_error;
201 __s32 hlni_fatal_error;
202 __s32 hlni_health_value;
203 __u32 hlni_ping_count;
204 __u64 hlni_next_ping;
207 struct lnet_ioctl_peer_ni_hstats {
208 __u32 hlpni_remote_dropped;
209 __u32 hlpni_remote_timeout;
210 __u32 hlpni_remote_error;
211 __u32 hlpni_network_timeout;
212 __s32 hlpni_health_value;
213 __u32 hlpni_ping_count;
214 __u64 hlpni_next_ping;
217 struct lnet_ioctl_element_msg_stats {
218 struct libcfs_ioctl_hdr im_hdr;
220 struct lnet_ioctl_comm_count im_send_stats;
221 struct lnet_ioctl_comm_count im_recv_stats;
222 struct lnet_ioctl_comm_count im_drop_stats;
226 * lnet_ioctl_config_ni
227 * This structure describes an NI configuration. There are multiple components
228 * when configuring an NI: Net, Interfaces, CPT list and LND tunables
229 * A network is passed as a string to the DLC and translated using
231 * An interface is the name of the system configured interface
233 * CPT is the list of CPTS LND tunables are passed in the lic_bulk area
235 struct lnet_ioctl_config_ni {
236 struct libcfs_ioctl_hdr lic_cfg_hdr;
238 char lic_ni_intf[LNET_MAX_STR_LEN];
239 char lic_legacy_ip2nets[LNET_MAX_STR_LEN];
240 __u32 lic_cpts[LNET_MAX_SHOW_NUM_CPT];
249 struct lnet_peer_ni_credit_info {
250 char cr_aliveness[LNET_MAX_STR_LEN];
252 __s32 cr_ni_peer_tx_credits;
253 __s32 cr_peer_tx_credits;
254 __s32 cr_peer_min_tx_credits;
255 __u32 cr_peer_tx_qnob;
256 __s32 cr_peer_rtr_credits;
257 __s32 cr_peer_min_rtr_credits;
261 struct lnet_ioctl_peer {
262 struct libcfs_ioctl_hdr pr_hdr;
268 struct lnet_peer_ni_credit_info pr_peer_credits;
272 struct lnet_ioctl_peer_cfg {
273 struct libcfs_ioctl_hdr prcfg_hdr;
274 lnet_nid_t prcfg_prim_nid;
275 lnet_nid_t prcfg_cfg_nid;
280 void __user *prcfg_bulk;
283 struct lnet_ioctl_reset_health_cfg {
284 struct libcfs_ioctl_hdr rh_hdr;
285 enum lnet_health_type rh_type:32;
291 struct lnet_ioctl_reset_conns_per_peer_cfg {
292 struct libcfs_ioctl_hdr rcpp_hdr;
298 struct lnet_ioctl_recovery_list {
299 struct libcfs_ioctl_hdr rlst_hdr;
300 enum lnet_health_type rlst_type:32;
302 lnet_nid_t rlst_nid_array[LNET_MAX_SHOW_NUM_NID];
305 struct lnet_ioctl_set_value {
306 struct libcfs_ioctl_hdr sv_hdr;
310 struct lnet_ioctl_lnet_stats {
311 struct libcfs_ioctl_hdr st_hdr;
312 struct lnet_counters st_cntrs;
315 /* An IP, numeric NID or a Net number is composed of 1 or more of these
316 * descriptor structures.
318 struct lnet_range_expr {
324 /* le_count identifies the number of lnet_range_expr in the bulk
327 struct lnet_expressions {
331 /* A net descriptor has the net type, IE: O2IBLND, SOCKLND, etc and an
332 * expression describing a net number range.
334 struct lnet_ioctl_udsp_net_descr {
336 struct lnet_expressions ud_net_num_expr;
339 /* The UDSP descriptor header contains the type of matching criteria, SRC,
340 * DST, RTE, etc and how many lnet_expressions compose the LNet portion of
341 * the LNet NID. For example an IP can be
342 * composed of 4 lnet_expressions , a gni can be composed of 1
344 struct lnet_ioctl_udsp_descr_hdr {
345 /* The literals SRC, DST and RTE are encoded
349 __u32 ud_descr_count;
352 /* each matching expression in the UDSP is described with this.
353 * The bulk format is as follows:
354 * 1. 1x struct lnet_ioctl_udsp_net_descr
355 * -> the net part of the NID
356 * 2. >=0 struct lnet_expressions
357 * -> the address part of the NID
359 struct lnet_ioctl_udsp_descr {
360 struct lnet_ioctl_udsp_descr_hdr iud_src_hdr;
361 struct lnet_ioctl_udsp_net_descr iud_net;
364 /* The cumulative UDSP descriptor
365 * The bulk format is as follows:
366 * 1. >=1 struct lnet_ioctl_udsp_descr
368 * The size indicated in iou_hdr is the total size of the UDSP.
371 struct lnet_ioctl_udsp {
372 struct libcfs_ioctl_hdr iou_hdr;
374 __u32 iou_action_type;
379 void __user *iou_bulk;
382 /* structure used to request udsp instantiation information on the
383 * specified construct.
384 * cud_nid: the NID of the local or remote NI to pull info on.
385 * cud_nid_priority: NID prio of the requested NID.
386 * cud_net_priority: net prio of network of the requested NID.
387 * cud_pref_nid: array of preferred NIDs if it exists.
389 struct lnet_ioctl_construct_udsp_info {
390 struct libcfs_ioctl_hdr cud_hdr;
393 __u32 cud_nid_priority;
394 __u32 cud_net_priority;
395 lnet_nid_t cud_pref_nid[LNET_MAX_SHOW_NUM_NID];
396 lnet_nid_t cud_pref_rtr_nid[LNET_MAX_SHOW_NUM_NID];
399 #endif /* _LNET_DLC_H_ */