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
52 #define LNET_GENL_NAME "lnet"
53 #define LNET_GENL_VERSION 0x05
55 /* enum lnet_commands - Supported core LNet Netlink commands
57 * @LNET_CMD_UNSPEC: unspecified command to catch errors
59 * @LNET_CMD_NETS: command to manage the LNet networks
60 * @LNET_CMD_PING: command to send pings to LNet connections
65 LNET_CMD_CONFIGURE = 1,
72 __LNET_CMD_MAX_PLUS_ONE
75 #define LNET_CMD_MAX (__LNET_CMD_MAX_PLUS_ONE - 1)
78 * To allow for future enhancements to extend the tunables
79 * add a hdr to this structure, so that the version can be set
80 * and checked for backwards compatibility. Newer versions of LNet
81 * can still work with older versions of lnetctl. The restriction is
82 * that the structure can be added to and not removed from in order
83 * to not invalidate older lnetctl utilities. Moreover, the order of
84 * fields must remain the same, and new fields appended to the structure
86 * That said all existing LND tunables will be added in this structure
87 * to avoid future changes.
89 struct lnet_ioctl_config_lnd_cmn_tunables {
91 __s32 lct_peer_timeout;
92 __s32 lct_peer_tx_credits;
93 __s32 lct_peer_rtr_credits;
94 __s32 lct_max_tx_credits;
97 struct lnet_ioctl_config_o2iblnd_tunables {
99 __u32 lnd_peercredits_hiw;
100 __u32 lnd_map_on_demand;
101 __u32 lnd_concurrent_sends;
102 __u32 lnd_fmr_pool_size;
103 __u32 lnd_fmr_flush_trigger;
105 __u16 lnd_conns_per_peer;
109 struct lnet_ioctl_config_kfilnd_tunables {
111 __u32 lnd_prov_major_version;
112 __u32 lnd_prov_minor_version;
116 struct lnet_ioctl_config_socklnd_tunables {
118 __u16 lnd_conns_per_peer;
122 struct lnet_lnd_tunables {
124 struct lnet_ioctl_config_o2iblnd_tunables lnd_o2ib;
125 struct lnet_ioctl_config_socklnd_tunables lnd_sock;
126 struct lnet_ioctl_config_kfilnd_tunables lnd_kfi;
130 struct lnet_ioctl_config_lnd_tunables {
131 struct lnet_ioctl_config_lnd_cmn_tunables lt_cmn;
132 struct lnet_lnd_tunables lt_tun;
135 struct lnet_ioctl_net_config {
136 char ni_interface[LNET_MAX_STR_LEN];
138 __u32 ni_cpts[LNET_MAX_SHOW_NUM_CPT];
142 #define LNET_TINY_BUF_IDX 0
143 #define LNET_SMALL_BUF_IDX 1
144 #define LNET_LARGE_BUF_IDX 2
146 /* # different router buffer pools */
147 #define LNET_NRBPOOLS (LNET_LARGE_BUF_IDX + 1)
149 struct lnet_ioctl_pool_cfg {
155 } pl_pools[LNET_NRBPOOLS];
159 struct lnet_ioctl_ping_data {
160 struct libcfs_ioctl_hdr ping_hdr;
166 struct lnet_process_id ping_id;
167 struct lnet_process_id __user *ping_buf;
171 struct lnet_ioctl_config_data {
172 struct libcfs_ioctl_hdr cfg_hdr;
184 __u32 rtr_sensitivity;
187 char net_intf[LNET_MAX_STR_LEN];
188 __s32 net_peer_timeout;
189 __s32 net_peer_tx_credits;
190 __s32 net_peer_rtr_credits;
191 __s32 net_max_tx_credits;
192 __u32 net_cksum_algo;
193 __u32 net_interface_count;
206 struct lnet_ioctl_comm_count {
209 __u32 ico_reply_count;
211 __u32 ico_hello_count;
214 struct lnet_ioctl_element_stats {
215 __u32 iel_send_count;
216 __u32 iel_recv_count;
217 __u32 iel_drop_count;
220 enum lnet_health_type {
221 LNET_HEALTH_TYPE_LOCAL_NI = 0,
222 LNET_HEALTH_TYPE_PEER_NI,
225 struct lnet_ioctl_local_ni_hstats {
226 struct libcfs_ioctl_hdr hlni_hdr;
228 __u32 hlni_local_interrupt;
229 __u32 hlni_local_dropped;
230 __u32 hlni_local_aborted;
231 __u32 hlni_local_no_route;
232 __u32 hlni_local_timeout;
233 __u32 hlni_local_error;
234 __s32 hlni_fatal_error;
235 __s32 hlni_health_value;
236 __u32 hlni_ping_count;
237 __u64 hlni_next_ping;
240 struct lnet_ioctl_peer_ni_hstats {
241 __u32 hlpni_remote_dropped;
242 __u32 hlpni_remote_timeout;
243 __u32 hlpni_remote_error;
244 __u32 hlpni_network_timeout;
245 __s32 hlpni_health_value;
246 __u32 hlpni_ping_count;
247 __u64 hlpni_next_ping;
250 struct lnet_ioctl_element_msg_stats {
251 struct libcfs_ioctl_hdr im_hdr;
253 struct lnet_ioctl_comm_count im_send_stats;
254 struct lnet_ioctl_comm_count im_recv_stats;
255 struct lnet_ioctl_comm_count im_drop_stats;
259 * lnet_ioctl_config_ni
260 * This structure describes an NI configuration. There are multiple components
261 * when configuring an NI: Net, Interfaces, CPT list and LND tunables
262 * A network is passed as a string to the DLC and translated using
264 * An interface is the name of the system configured interface
266 * CPT is the list of CPTS LND tunables are passed in the lic_bulk area
268 struct lnet_ioctl_config_ni {
269 struct libcfs_ioctl_hdr lic_cfg_hdr;
271 char lic_ni_intf[LNET_MAX_STR_LEN];
272 char lic_legacy_ip2nets[LNET_MAX_STR_LEN];
273 __u32 lic_cpts[LNET_MAX_SHOW_NUM_CPT];
282 struct lnet_peer_ni_credit_info {
283 char cr_aliveness[LNET_MAX_STR_LEN];
285 __s32 cr_ni_peer_tx_credits;
286 __s32 cr_peer_tx_credits;
287 __s32 cr_peer_min_tx_credits;
288 __u32 cr_peer_tx_qnob;
289 __s32 cr_peer_rtr_credits;
290 __s32 cr_peer_min_rtr_credits;
294 struct lnet_ioctl_peer {
295 struct libcfs_ioctl_hdr pr_hdr;
301 struct lnet_peer_ni_credit_info pr_peer_credits;
305 struct lnet_ioctl_peer_cfg {
306 struct libcfs_ioctl_hdr prcfg_hdr;
307 lnet_nid_t prcfg_prim_nid;
308 lnet_nid_t prcfg_cfg_nid;
313 void __user *prcfg_bulk;
316 struct lnet_ioctl_reset_health_cfg {
317 struct libcfs_ioctl_hdr rh_hdr;
318 enum lnet_health_type rh_type:32;
324 struct lnet_ioctl_reset_conns_per_peer_cfg {
325 struct libcfs_ioctl_hdr rcpp_hdr;
331 struct lnet_ioctl_recovery_list {
332 struct libcfs_ioctl_hdr rlst_hdr;
333 enum lnet_health_type rlst_type:32;
335 lnet_nid_t rlst_nid_array[LNET_MAX_SHOW_NUM_NID];
338 struct lnet_ioctl_set_value {
339 struct libcfs_ioctl_hdr sv_hdr;
343 struct lnet_ioctl_lnet_stats {
344 struct libcfs_ioctl_hdr st_hdr;
345 struct lnet_counters st_cntrs;
348 /* An IP, numeric NID or a Net number is composed of 1 or more of these
349 * descriptor structures.
351 struct lnet_range_expr {
357 /* le_count identifies the number of lnet_range_expr in the bulk
360 struct lnet_expressions {
364 /* A net descriptor has the net type, IE: O2IBLND, SOCKLND, etc and an
365 * expression describing a net number range.
367 struct lnet_ioctl_udsp_net_descr {
369 struct lnet_expressions ud_net_num_expr;
372 /* The UDSP descriptor header contains the type of matching criteria, SRC,
373 * DST, RTE, etc and how many lnet_expressions compose the LNet portion of
374 * the LNet NID. For example an IP can be
375 * composed of 4 lnet_expressions , a gni can be composed of 1
377 struct lnet_ioctl_udsp_descr_hdr {
378 /* The literals SRC, DST and RTE are encoded
382 __u32 ud_descr_count;
385 /* each matching expression in the UDSP is described with this.
386 * The bulk format is as follows:
387 * 1. 1x struct lnet_ioctl_udsp_net_descr
388 * -> the net part of the NID
389 * 2. >=0 struct lnet_expressions
390 * -> the address part of the NID
392 struct lnet_ioctl_udsp_descr {
393 struct lnet_ioctl_udsp_descr_hdr iud_src_hdr;
394 struct lnet_ioctl_udsp_net_descr iud_net;
397 /* The cumulative UDSP descriptor
398 * The bulk format is as follows:
399 * 1. >=1 struct lnet_ioctl_udsp_descr
401 * The size indicated in iou_hdr is the total size of the UDSP.
404 struct lnet_ioctl_udsp {
405 struct libcfs_ioctl_hdr iou_hdr;
407 __u32 iou_action_type;
412 void __user *iou_bulk;
415 /* structure used to request udsp instantiation information on the
416 * specified construct.
417 * cud_nid: the NID of the local or remote NI to pull info on.
418 * cud_nid_priority: NID prio of the requested NID.
419 * cud_net_priority: net prio of network of the requested NID.
420 * cud_pref_nid: array of preferred NIDs if it exists.
422 struct lnet_ioctl_construct_udsp_info {
423 struct libcfs_ioctl_hdr cud_hdr;
426 __u32 cud_nid_priority;
427 __u32 cud_net_priority;
428 lnet_nid_t cud_pref_nid[LNET_MAX_SHOW_NUM_NID];
429 lnet_nid_t cud_pref_rtr_nid[LNET_MAX_SHOW_NUM_NID];
432 #endif /* _LNET_DLC_H_ */