lnet/utils/lnetconfig/liblnetconfig_lnd.c

   1 /*
   2  * LGPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU Lesser General Public License as
   8  * published by the Free Software Foundation; either version 2.1 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful, but
  12  * 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. If not, see <http://www.gnu.org/licenses/>.
  18  *
  19  * LGPL HEADER END
  20  *
  21  * Copyright (c) 2015, James Simmons
  22  *
  23  * Author:
  24  *   James Simmons <jsimmons@infradead.org>
  25  */
  26 #include <stdio.h>
  27 #include <string.h>
  28 #include <libcfs/util/ioctl.h>
  29 #include "liblnetconfig.h"
  30 #include "cyaml.h"
  31
  32 static int
  33 lustre_ko2iblnd_show_net(struct cYAML *lndparams,
  34                          struct lnet_ioctl_config_lnd_tunables *tunables)
  35 {
  36         struct lnet_ioctl_config_o2iblnd_tunables *lnd_cfg;
  37
  38         lnd_cfg = &tunables->lt_tun_u.lt_o2ib;
  39
  40         if (cYAML_create_number(lndparams, "peercredits_hiw",
  41                                 lnd_cfg->lnd_peercredits_hiw) == NULL)
  42                 return -1;
  43
  44         if (cYAML_create_number(lndparams, "map_on_demand",
  45                                 lnd_cfg->lnd_map_on_demand) == NULL)
  46                 return -1;
  47
  48         if (cYAML_create_number(lndparams, "concurrent_sends",
  49                                 lnd_cfg->lnd_concurrent_sends) == NULL)
  50                 return -1;
  51
  52         if (cYAML_create_number(lndparams, "fmr_pool_size",
  53                                 lnd_cfg->lnd_fmr_pool_size) == NULL)
  54                 return -1;
  55
  56         if (cYAML_create_number(lndparams, "fmr_flush_trigger",
  57                                 lnd_cfg->lnd_fmr_flush_trigger) == NULL)
  58                 return -1;
  59
  60         if (cYAML_create_number(lndparams, "fmr_cache",
  61                                 lnd_cfg->lnd_fmr_cache) == NULL)
  62                 return -1;
  63         return 0;
  64 }
  65
  66 int
  67 lustre_interface_show_net(struct cYAML *interfaces, unsigned int index,
  68                           bool detail, struct lnet_ioctl_config_data *data,
  69                           struct lnet_ioctl_net_config *net_config)
  70 {
  71         char ni_index[2]; /* LNET_MAX_INTERFACES is only 16 */
  72
  73         if (strlen(net_config->ni_interfaces[index]) == 0)
  74                 return 0;
  75
  76         snprintf(ni_index, sizeof(ni_index), "%d", index);
  77         if (cYAML_create_string(interfaces, ni_index,
  78                                 net_config->ni_interfaces[index]) == NULL)
  79                 return -1;
  80
  81         if (detail) {
  82                 __u32 net = LNET_NETTYP(LNET_NIDNET(data->cfg_nid));
  83                 struct lnet_ioctl_config_lnd_tunables *lnd_cfg;
  84                 struct cYAML *lndparams;
  85
  86                 if (data->cfg_config_u.cfg_net.net_interface_count == 0 ||
  87                     net != O2IBLND)
  88                         return 0;
  89
  90                 lndparams = cYAML_create_object(interfaces, "lnd tunables");
  91                 if (lndparams == NULL)
  92                         return -1;
  93
  94                 lnd_cfg = (struct lnet_ioctl_config_lnd_tunables *)net_config->cfg_bulk;
  95                 if (lustre_ko2iblnd_show_net(lndparams, lnd_cfg) < 0)
  96                         return -1;
  97         }
  98         return 0;
  99 }
 100
 101 static void
 102 lustre_ko2iblnd_parse_net(struct cYAML *lndparams,
 103                           struct lnet_ioctl_config_lnd_tunables *lnd_cfg)
 104 {
 105         struct cYAML *map_on_demand = NULL, *concurrent_sends = NULL;
 106         struct cYAML *fmr_pool_size = NULL, *fmr_cache = NULL;
 107         struct cYAML *fmr_flush_trigger = NULL;
 108
 109         map_on_demand = cYAML_get_object_item(lndparams, "map_on_demand");
 110         lnd_cfg->lt_tun_u.lt_o2ib.lnd_map_on_demand =
 111                 (map_on_demand) ? map_on_demand->cy_valueint : 0;
 112
 113         concurrent_sends = cYAML_get_object_item(lndparams, "concurrent_sends");
 114         lnd_cfg->lt_tun_u.lt_o2ib.lnd_concurrent_sends =
 115                 (concurrent_sends) ? concurrent_sends->cy_valueint : 0;
 116
 117         fmr_pool_size = cYAML_get_object_item(lndparams, "fmr_pool_size");
 118         lnd_cfg->lt_tun_u.lt_o2ib.lnd_fmr_pool_size =
 119                 (fmr_pool_size) ? fmr_pool_size->cy_valueint : 0;
 120
 121         fmr_flush_trigger = cYAML_get_object_item(lndparams,
 122                                                   "fmr_flush_trigger");
 123         lnd_cfg->lt_tun_u.lt_o2ib.lnd_fmr_flush_trigger =
 124                 (fmr_flush_trigger) ? fmr_flush_trigger->cy_valueint : 0;
 125
 126         fmr_cache = cYAML_get_object_item(lndparams, "fmr_cache");
 127         lnd_cfg->lt_tun_u.lt_o2ib.lnd_fmr_cache =
 128                 (fmr_cache) ? fmr_cache->cy_valueint : 0;
 129 }
 130
 131 void
 132 lustre_interface_parse(struct cYAML *lndparams, const char *dev_name,
 133                        struct lnet_ioctl_config_lnd_tunables *lnd_cfg)
 134 {
 135         if (dev_name != NULL && strstr(dev_name, "ib"))
 136                 lustre_ko2iblnd_parse_net(lndparams, lnd_cfg);
 137 }