drivers/staging/lustre/include/linux/lnet/lib-dlc.h

   1 /*
   2  * LGPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   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.
  10  *
  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.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library.
  18  *
  19  * LGPL HEADER END
  20  *
  21  */
  22 /*
  23  * Copyright (c) 2014, Intel Corporation.
  24  */
  25 /*
  26  * Author: Amir Shehata <amir.shehata@intel.com>
  27  */
  28
  29 #ifndef LNET_DLC_H
  30 #define LNET_DLC_H
  31
  32 #include "../libcfs/libcfs_ioctl.h"
  33 #include "types.h"
  34
  35 #define MAX_NUM_SHOW_ENTRIES    32
  36 #define LNET_MAX_STR_LEN        128
  37 #define LNET_MAX_SHOW_NUM_CPT   128
  38 #define LNET_UNDEFINED_HOPS     ((__u32) -1)
  39
  40 struct lnet_ioctl_config_lnd_cmn_tunables {
  41         __u32 lct_version;
  42         __u32 lct_peer_timeout;
  43         __u32 lct_peer_tx_credits;
  44         __u32 lct_peer_rtr_credits;
  45         __u32 lct_max_tx_credits;
  46 };
  47
  48 struct lnet_ioctl_config_o2iblnd_tunables {
  49         __u32 lnd_version;
  50         __u32 lnd_peercredits_hiw;
  51         __u32 lnd_map_on_demand;
  52         __u32 lnd_concurrent_sends;
  53         __u32 lnd_fmr_pool_size;
  54         __u32 lnd_fmr_flush_trigger;
  55         __u32 lnd_fmr_cache;
  56         __u32 pad;
  57 };
  58
  59 struct lnet_ioctl_config_lnd_tunables {
  60         struct lnet_ioctl_config_lnd_cmn_tunables lt_cmn;
  61         union {
  62                 struct lnet_ioctl_config_o2iblnd_tunables lt_o2ib;
  63         } lt_tun_u;
  64 };
  65
  66 struct lnet_ioctl_net_config {
  67         char ni_interfaces[LNET_MAX_INTERFACES][LNET_MAX_STR_LEN];
  68         __u32 ni_status;
  69         __u32 ni_cpts[LNET_MAX_SHOW_NUM_CPT];
  70         char cfg_bulk[0];
  71 };
  72
  73 #define LNET_TINY_BUF_IDX       0
  74 #define LNET_SMALL_BUF_IDX      1
  75 #define LNET_LARGE_BUF_IDX      2
  76
  77 /* # different router buffer pools */
  78 #define LNET_NRBPOOLS           (LNET_LARGE_BUF_IDX + 1)
  79
  80 struct lnet_ioctl_pool_cfg {
  81         struct {
  82                 __u32 pl_npages;
  83                 __u32 pl_nbuffers;
  84                 __u32 pl_credits;
  85                 __u32 pl_mincredits;
  86         } pl_pools[LNET_NRBPOOLS];
  87         __u32 pl_routing;
  88 };
  89
  90 struct lnet_ioctl_config_data {
  91         struct libcfs_ioctl_hdr cfg_hdr;
  92
  93         __u32 cfg_net;
  94         __u32 cfg_count;
  95         __u64 cfg_nid;
  96         __u32 cfg_ncpts;
  97
  98         union {
  99                 struct {
 100                         __u32 rtr_hop;
 101                         __u32 rtr_priority;
 102                         __u32 rtr_flags;
 103                 } cfg_route;
 104                 struct {
 105                         char net_intf[LNET_MAX_STR_LEN];
 106                         __s32 net_peer_timeout;
 107                         __s32 net_peer_tx_credits;
 108                         __s32 net_peer_rtr_credits;
 109                         __s32 net_max_tx_credits;
 110                         __u32 net_cksum_algo;
 111                         __u32 net_interface_count;
 112                 } cfg_net;
 113                 struct {
 114                         __u32 buf_enable;
 115                         __s32 buf_tiny;
 116                         __s32 buf_small;
 117                         __s32 buf_large;
 118                 } cfg_buffers;
 119         } cfg_config_u;
 120
 121         char cfg_bulk[0];
 122 };
 123
 124 struct lnet_ioctl_peer {
 125         struct libcfs_ioctl_hdr pr_hdr;
 126         __u32 pr_count;
 127         __u32 pr_pad;
 128         __u64 pr_nid;
 129
 130         union {
 131                 struct {
 132                         char cr_aliveness[LNET_MAX_STR_LEN];
 133                         __u32 cr_refcount;
 134                         __u32 cr_ni_peer_tx_credits;
 135                         __u32 cr_peer_tx_credits;
 136                         __u32 cr_peer_rtr_credits;
 137                         __u32 cr_peer_min_rtr_credits;
 138                         __u32 cr_peer_tx_qnob;
 139                         __u32 cr_ncpt;
 140                 } pr_peer_credits;
 141         } pr_lnd_u;
 142 };
 143
 144 struct lnet_ioctl_lnet_stats {
 145         struct libcfs_ioctl_hdr st_hdr;
 146         struct lnet_counters st_cntrs;
 147 };
 148
 149 #endif /* LNET_DLC_H */