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
66 LNET_CMD_CONFIGURE = 1,
73 __LNET_CMD_MAX_PLUS_ONE
76 #define LNET_CMD_MAX (__LNET_CMD_MAX_PLUS_ONE - 1)
79 * To allow for future enhancements to extend the tunables
80 * add a hdr to this structure, so that the version can be set
81 * and checked for backwards compatibility. Newer versions of LNet
82 * can still work with older versions of lnetctl. The restriction is
83 * that the structure can be added to and not removed from in order
84 * to not invalidate older lnetctl utilities. Moreover, the order of
85 * fields must remain the same, and new fields appended to the structure
87 * That said all existing LND tunables will be added in this structure
88 * to avoid future changes.
90 struct lnet_ioctl_config_lnd_cmn_tunables {
92 __s32 lct_peer_timeout;
93 __s32 lct_peer_tx_credits;
94 __s32 lct_peer_rtr_credits;
95 __s32 lct_max_tx_credits;
98 struct lnet_ioctl_config_o2iblnd_tunables {
100 __u32 lnd_peercredits_hiw;
101 __u32 lnd_map_on_demand;
102 __u32 lnd_concurrent_sends;
103 __u32 lnd_fmr_pool_size;
104 __u32 lnd_fmr_flush_trigger;
106 __u16 lnd_conns_per_peer;
111 struct lnet_ioctl_config_kfilnd_tunables {
113 __u32 lnd_prov_major_version;
114 __u32 lnd_prov_minor_version;
116 char lnd_traffic_class_str[LNET_MAX_STR_LEN];
117 __u32 lnd_traffic_class;
120 struct lnet_ioctl_config_socklnd_tunables {
122 __u16 lnd_conns_per_peer;
127 struct lnet_ioctl_config_gnilnd_tunables {
132 struct lnet_lnd_tunables {
134 struct lnet_ioctl_config_o2iblnd_tunables lnd_o2ib;
135 struct lnet_ioctl_config_socklnd_tunables lnd_sock;
136 struct lnet_ioctl_config_kfilnd_tunables lnd_kfi;
137 struct lnet_ioctl_config_gnilnd_tunables lnd_gni;
141 struct lnet_ioctl_config_lnd_tunables {
142 struct lnet_ioctl_config_lnd_cmn_tunables lt_cmn;
143 struct lnet_lnd_tunables lt_tun;
146 struct lnet_ioctl_net_config {
147 char ni_interface[LNET_MAX_STR_LEN];
149 __u32 ni_cpts[LNET_MAX_SHOW_NUM_CPT];
153 #define LNET_TINY_BUF_IDX 0
154 #define LNET_SMALL_BUF_IDX 1
155 #define LNET_LARGE_BUF_IDX 2
157 /* # different router buffer pools */
158 #define LNET_NRBPOOLS (LNET_LARGE_BUF_IDX + 1)
160 struct lnet_ioctl_pool_cfg {
166 } pl_pools[LNET_NRBPOOLS];
170 struct lnet_ioctl_ping_data {
171 struct libcfs_ioctl_hdr ping_hdr;
177 struct lnet_process_id ping_id;
178 struct lnet_process_id __user *ping_buf;
182 struct lnet_ioctl_config_data {
183 struct libcfs_ioctl_hdr cfg_hdr;
195 __u32 rtr_sensitivity;
198 char net_intf[LNET_MAX_STR_LEN];
199 __s32 net_peer_timeout;
200 __s32 net_peer_tx_credits;
201 __s32 net_peer_rtr_credits;
202 __s32 net_max_tx_credits;
203 __u32 net_cksum_algo;
204 __u32 net_interface_count;
217 struct lnet_ioctl_comm_count {
220 __u32 ico_reply_count;
222 __u32 ico_hello_count;
225 struct lnet_ioctl_element_stats {
226 __u32 iel_send_count;
227 __u32 iel_recv_count;
228 __u32 iel_drop_count;
231 enum lnet_health_type {
232 LNET_HEALTH_TYPE_LOCAL_NI = 0,
233 LNET_HEALTH_TYPE_PEER_NI,
236 struct lnet_ioctl_local_ni_hstats {
237 struct libcfs_ioctl_hdr hlni_hdr;
239 __u32 hlni_local_interrupt;
240 __u32 hlni_local_dropped;
241 __u32 hlni_local_aborted;
242 __u32 hlni_local_no_route;
243 __u32 hlni_local_timeout;
244 __u32 hlni_local_error;
245 __s32 hlni_fatal_error;
246 __s32 hlni_health_value;
247 __u32 hlni_ping_count;
248 __u64 hlni_next_ping;
251 struct lnet_ioctl_peer_ni_hstats {
252 __u32 hlpni_remote_dropped;
253 __u32 hlpni_remote_timeout;
254 __u32 hlpni_remote_error;
255 __u32 hlpni_network_timeout;
256 __s32 hlpni_health_value;
257 __u32 hlpni_ping_count;
258 __u64 hlpni_next_ping;
261 struct lnet_ioctl_element_msg_stats {
262 struct libcfs_ioctl_hdr im_hdr;
264 struct lnet_ioctl_comm_count im_send_stats;
265 struct lnet_ioctl_comm_count im_recv_stats;
266 struct lnet_ioctl_comm_count im_drop_stats;
270 * lnet_ioctl_config_ni
271 * This structure describes an NI configuration. There are multiple components
272 * when configuring an NI: Net, Interfaces, CPT list and LND tunables
273 * A network is passed as a string to the DLC and translated using
275 * An interface is the name of the system configured interface
277 * CPT is the list of CPTS LND tunables are passed in the lic_bulk area
279 struct lnet_ioctl_config_ni {
280 struct libcfs_ioctl_hdr lic_cfg_hdr;
282 char lic_ni_intf[LNET_MAX_STR_LEN];
283 char lic_legacy_ip2nets[LNET_MAX_STR_LEN];
284 __u32 lic_cpts[LNET_MAX_SHOW_NUM_CPT];
293 struct lnet_peer_ni_credit_info {
294 char cr_aliveness[LNET_MAX_STR_LEN];
296 __s32 cr_ni_peer_tx_credits;
297 __s32 cr_peer_tx_credits;
298 __s32 cr_peer_min_tx_credits;
299 __u32 cr_peer_tx_qnob;
300 __s32 cr_peer_rtr_credits;
301 __s32 cr_peer_min_rtr_credits;
305 struct lnet_ioctl_peer {
306 struct libcfs_ioctl_hdr pr_hdr;
312 struct lnet_peer_ni_credit_info pr_peer_credits;
316 struct lnet_ioctl_peer_cfg {
317 struct libcfs_ioctl_hdr prcfg_hdr;
318 lnet_nid_t prcfg_prim_nid;
319 lnet_nid_t prcfg_cfg_nid;
320 __u32 prcfg_count; /* ADD_PEER_NI: used for 'lock_prim' option
321 * DEL_PEER_NI: used for 'force' option
326 void __user *prcfg_bulk;
329 struct lnet_ioctl_reset_health_cfg {
330 struct libcfs_ioctl_hdr rh_hdr;
331 enum lnet_health_type rh_type:32;
337 struct lnet_ioctl_reset_conns_per_peer_cfg {
338 struct libcfs_ioctl_hdr rcpp_hdr;
344 struct lnet_ioctl_recovery_list {
345 struct libcfs_ioctl_hdr rlst_hdr;
346 enum lnet_health_type rlst_type:32;
348 lnet_nid_t rlst_nid_array[LNET_MAX_SHOW_NUM_NID];
351 struct lnet_ioctl_set_value {
352 struct libcfs_ioctl_hdr sv_hdr;
356 struct lnet_ioctl_lnet_stats {
357 struct libcfs_ioctl_hdr st_hdr;
358 struct lnet_counters st_cntrs;
361 /* An IP, numeric NID or a Net number is composed of 1 or more of these
362 * descriptor structures.
364 struct lnet_range_expr {
370 /* le_count identifies the number of lnet_range_expr in the bulk
373 struct lnet_expressions {
377 /* A net descriptor has the net type, IE: O2IBLND, SOCKLND, etc and an
378 * expression describing a net number range.
380 struct lnet_ioctl_udsp_net_descr {
382 struct lnet_expressions ud_net_num_expr;
385 /* The UDSP descriptor header contains the type of matching criteria, SRC,
386 * DST, RTE, etc and how many lnet_expressions compose the LNet portion of
387 * the LNet NID. For example an IP can be
388 * composed of 4 lnet_expressions , a gni can be composed of 1
390 struct lnet_ioctl_udsp_descr_hdr {
391 /* The literals SRC, DST and RTE are encoded
395 __u32 ud_descr_count;
398 /* each matching expression in the UDSP is described with this.
399 * The bulk format is as follows:
400 * 1. 1x struct lnet_ioctl_udsp_net_descr
401 * -> the net part of the NID
402 * 2. >=0 struct lnet_expressions
403 * -> the address part of the NID
405 struct lnet_ioctl_udsp_descr {
406 struct lnet_ioctl_udsp_descr_hdr iud_src_hdr;
407 struct lnet_ioctl_udsp_net_descr iud_net;
410 /* The cumulative UDSP descriptor
411 * The bulk format is as follows:
412 * 1. >=1 struct lnet_ioctl_udsp_descr
414 * The size indicated in iou_hdr is the total size of the UDSP.
417 struct lnet_ioctl_udsp {
418 struct libcfs_ioctl_hdr iou_hdr;
420 __u32 iou_action_type;
425 void __user *iou_bulk;
428 /* structure used to request udsp instantiation information on the
429 * specified construct.
430 * cud_nid: the NID of the local or remote NI to pull info on.
431 * cud_nid_priority: NID prio of the requested NID.
432 * cud_net_priority: net prio of network of the requested NID.
433 * cud_pref_nid: array of preferred NIDs if it exists.
435 struct lnet_ioctl_construct_udsp_info {
436 struct libcfs_ioctl_hdr cud_hdr;
439 __u32 cud_nid_priority;
440 __u32 cud_net_priority;
441 lnet_nid_t cud_pref_nid[LNET_MAX_SHOW_NUM_NID];
442 lnet_nid_t cud_pref_rtr_nid[LNET_MAX_SHOW_NUM_NID];
445 #endif /* _LNET_DLC_H_ */