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_ROUTES: command to manage LNet routes
61 * @LNET_CMD_PING: command to send pings to LNet connections
62 * @LNET_CMD_CPT_OF_NID: command to calculate the CPT of specified NIDs
67 LNET_CMD_CONFIGURE = 1,
73 LNET_CMD_CPT_OF_NID = 7,
75 __LNET_CMD_MAX_PLUS_ONE
78 #define LNET_CMD_MAX (__LNET_CMD_MAX_PLUS_ONE - 1)
81 * To allow for future enhancements to extend the tunables
82 * add a hdr to this structure, so that the version can be set
83 * and checked for backwards compatibility. Newer versions of LNet
84 * can still work with older versions of lnetctl. The restriction is
85 * that the structure can be added to and not removed from in order
86 * to not invalidate older lnetctl utilities. Moreover, the order of
87 * fields must remain the same, and new fields appended to the structure
89 * That said all existing LND tunables will be added in this structure
90 * to avoid future changes.
92 struct lnet_ioctl_config_lnd_cmn_tunables {
94 __s32 lct_peer_timeout;
95 __s32 lct_peer_tx_credits;
96 __s32 lct_peer_rtr_credits;
97 __s32 lct_max_tx_credits;
100 struct lnet_ioctl_config_o2iblnd_tunables {
102 __u32 lnd_peercredits_hiw;
103 __u32 lnd_map_on_demand;
104 __u32 lnd_concurrent_sends;
105 __u32 lnd_fmr_pool_size;
106 __u32 lnd_fmr_flush_trigger;
108 __u16 lnd_conns_per_peer;
113 struct lnet_ioctl_config_kfilnd_tunables {
115 __u32 lnd_prov_major_version;
116 __u32 lnd_prov_minor_version;
118 char lnd_traffic_class_str[LNET_MAX_STR_LEN];
119 __u32 lnd_traffic_class;
122 struct lnet_ioctl_config_socklnd_tunables {
124 __u16 lnd_conns_per_peer;
129 struct lnet_ioctl_config_gnilnd_tunables {
134 struct lnet_lnd_tunables {
136 struct lnet_ioctl_config_o2iblnd_tunables lnd_o2ib;
137 struct lnet_ioctl_config_socklnd_tunables lnd_sock;
138 struct lnet_ioctl_config_kfilnd_tunables lnd_kfi;
139 struct lnet_ioctl_config_gnilnd_tunables lnd_gni;
143 struct lnet_ioctl_config_lnd_tunables {
144 struct lnet_ioctl_config_lnd_cmn_tunables lt_cmn;
145 struct lnet_lnd_tunables lt_tun;
148 struct lnet_ioctl_net_config {
149 char ni_interface[LNET_MAX_STR_LEN];
151 __u32 ni_cpts[LNET_MAX_SHOW_NUM_CPT];
155 #define LNET_TINY_BUF_IDX 0
156 #define LNET_SMALL_BUF_IDX 1
157 #define LNET_LARGE_BUF_IDX 2
159 /* # different router buffer pools */
160 #define LNET_NRBPOOLS (LNET_LARGE_BUF_IDX + 1)
162 struct lnet_ioctl_pool_cfg {
168 } pl_pools[LNET_NRBPOOLS];
172 struct lnet_ioctl_ping_data {
173 struct libcfs_ioctl_hdr ping_hdr;
179 struct lnet_process_id ping_id;
180 struct lnet_process_id __user *ping_buf;
184 struct lnet_ioctl_config_data {
185 struct libcfs_ioctl_hdr cfg_hdr;
197 __u32 rtr_sensitivity;
200 char net_intf[LNET_MAX_STR_LEN];
201 __s32 net_peer_timeout;
202 __s32 net_peer_tx_credits;
203 __s32 net_peer_rtr_credits;
204 __s32 net_max_tx_credits;
205 __u32 net_cksum_algo;
206 __u32 net_interface_count;
219 struct lnet_ioctl_comm_count {
222 __u32 ico_reply_count;
224 __u32 ico_hello_count;
227 struct lnet_ioctl_element_stats {
228 __u32 iel_send_count;
229 __u32 iel_recv_count;
230 __u32 iel_drop_count;
233 enum lnet_health_type {
234 LNET_HEALTH_TYPE_LOCAL_NI = 0,
235 LNET_HEALTH_TYPE_PEER_NI,
238 struct lnet_ioctl_local_ni_hstats {
239 struct libcfs_ioctl_hdr hlni_hdr;
241 __u32 hlni_local_interrupt;
242 __u32 hlni_local_dropped;
243 __u32 hlni_local_aborted;
244 __u32 hlni_local_no_route;
245 __u32 hlni_local_timeout;
246 __u32 hlni_local_error;
247 __s32 hlni_fatal_error;
248 __s32 hlni_health_value;
249 __u32 hlni_ping_count;
250 __u64 hlni_next_ping;
253 struct lnet_ioctl_peer_ni_hstats {
254 __u32 hlpni_remote_dropped;
255 __u32 hlpni_remote_timeout;
256 __u32 hlpni_remote_error;
257 __u32 hlpni_network_timeout;
258 __s32 hlpni_health_value;
259 __u32 hlpni_ping_count;
260 __u64 hlpni_next_ping;
263 struct lnet_ioctl_element_msg_stats {
264 struct libcfs_ioctl_hdr im_hdr;
266 struct lnet_ioctl_comm_count im_send_stats;
267 struct lnet_ioctl_comm_count im_recv_stats;
268 struct lnet_ioctl_comm_count im_drop_stats;
272 * lnet_ioctl_config_ni
273 * This structure describes an NI configuration. There are multiple components
274 * when configuring an NI: Net, Interfaces, CPT list and LND tunables
275 * A network is passed as a string to the DLC and translated using
277 * An interface is the name of the system configured interface
279 * CPT is the list of CPTS LND tunables are passed in the lic_bulk area
281 struct lnet_ioctl_config_ni {
282 struct libcfs_ioctl_hdr lic_cfg_hdr;
284 char lic_ni_intf[LNET_MAX_STR_LEN];
285 char lic_legacy_ip2nets[LNET_MAX_STR_LEN];
286 __u32 lic_cpts[LNET_MAX_SHOW_NUM_CPT];
295 struct lnet_peer_ni_credit_info {
296 char cr_aliveness[LNET_MAX_STR_LEN];
298 __s32 cr_ni_peer_tx_credits;
299 __s32 cr_peer_tx_credits;
300 __s32 cr_peer_min_tx_credits;
301 __u32 cr_peer_tx_qnob;
302 __s32 cr_peer_rtr_credits;
303 __s32 cr_peer_min_rtr_credits;
307 struct lnet_ioctl_peer {
308 struct libcfs_ioctl_hdr pr_hdr;
314 struct lnet_peer_ni_credit_info pr_peer_credits;
318 struct lnet_ioctl_peer_cfg {
319 struct libcfs_ioctl_hdr prcfg_hdr;
320 lnet_nid_t prcfg_prim_nid;
321 lnet_nid_t prcfg_cfg_nid;
322 __u32 prcfg_count; /* ADD_PEER_NI: used for 'lock_prim' option
323 * DEL_PEER_NI: used for 'force' option
328 void __user *prcfg_bulk;
331 struct lnet_ioctl_reset_health_cfg {
332 struct libcfs_ioctl_hdr rh_hdr;
333 enum lnet_health_type rh_type:32;
339 struct lnet_ioctl_reset_conns_per_peer_cfg {
340 struct libcfs_ioctl_hdr rcpp_hdr;
346 struct lnet_ioctl_recovery_list {
347 struct libcfs_ioctl_hdr rlst_hdr;
348 enum lnet_health_type rlst_type:32;
350 lnet_nid_t rlst_nid_array[LNET_MAX_SHOW_NUM_NID];
353 struct lnet_ioctl_set_value {
354 struct libcfs_ioctl_hdr sv_hdr;
358 struct lnet_ioctl_lnet_stats {
359 struct libcfs_ioctl_hdr st_hdr;
360 struct lnet_counters st_cntrs;
363 /* An IP, numeric NID or a Net number is composed of 1 or more of these
364 * descriptor structures.
366 struct lnet_range_expr {
372 /* le_count identifies the number of lnet_range_expr in the bulk
375 struct lnet_expressions {
379 /* A net descriptor has the net type, IE: O2IBLND, SOCKLND, etc and an
380 * expression describing a net number range.
382 struct lnet_ioctl_udsp_net_descr {
384 struct lnet_expressions ud_net_num_expr;
387 /* The UDSP descriptor header contains the type of matching criteria, SRC,
388 * DST, RTE, etc and how many lnet_expressions compose the LNet portion of
389 * the LNet NID. For example an IP can be
390 * composed of 4 lnet_expressions , a gni can be composed of 1
392 struct lnet_ioctl_udsp_descr_hdr {
393 /* The literals SRC, DST and RTE are encoded
397 __u32 ud_descr_count;
400 /* each matching expression in the UDSP is described with this.
401 * The bulk format is as follows:
402 * 1. 1x struct lnet_ioctl_udsp_net_descr
403 * -> the net part of the NID
404 * 2. >=0 struct lnet_expressions
405 * -> the address part of the NID
407 struct lnet_ioctl_udsp_descr {
408 struct lnet_ioctl_udsp_descr_hdr iud_src_hdr;
409 struct lnet_ioctl_udsp_net_descr iud_net;
412 /* The cumulative UDSP descriptor
413 * The bulk format is as follows:
414 * 1. >=1 struct lnet_ioctl_udsp_descr
416 * The size indicated in iou_hdr is the total size of the UDSP.
419 struct lnet_ioctl_udsp {
420 struct libcfs_ioctl_hdr iou_hdr;
422 __u32 iou_action_type;
427 void __user *iou_bulk;
430 /* structure used to request udsp instantiation information on the
431 * specified construct.
432 * cud_nid: the NID of the local or remote NI to pull info on.
433 * cud_nid_priority: NID prio of the requested NID.
434 * cud_net_priority: net prio of network of the requested NID.
435 * cud_pref_nid: array of preferred NIDs if it exists.
437 struct lnet_ioctl_construct_udsp_info {
438 struct libcfs_ioctl_hdr cud_hdr;
441 __u32 cud_nid_priority;
442 __u32 cud_net_priority;
443 lnet_nid_t cud_pref_nid[LNET_MAX_SHOW_NUM_NID];
444 lnet_nid_t cud_pref_rtr_nid[LNET_MAX_SHOW_NUM_NID];
447 #endif /* _LNET_DLC_H_ */