+ return rc;
+}
+
+static int
+lustre_lnet_ioctl_config_ni(struct list_head *intf_list,
+ struct lnet_ioctl_config_lnd_tunables *tunables,
+ struct cfs_expr_list *global_cpts,
+ lnet_nid_t *nids, char *err_str)
+{
+ char *data;
+ struct lnet_ioctl_config_ni *conf;
+ struct lnet_ioctl_config_lnd_tunables *tun = NULL;
+ int rc = LUSTRE_CFG_RC_NO_ERR, i = 0;
+ size_t len;
+ int count;
+ struct lnet_dlc_intf_descr *intf_descr;
+ __u32 *cpt_array;
+ struct cfs_expr_list *cpt_expr;
+
+ list_for_each_entry(intf_descr, intf_list,
+ intf_on_network) {
+ if (tunables != NULL)
+ len = sizeof(struct lnet_ioctl_config_ni) +
+ sizeof(struct lnet_ioctl_config_lnd_tunables);
+ else
+ len = sizeof(struct lnet_ioctl_config_ni);
+
+ data = calloc(1, len);
+ if (!data)
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+ conf = (struct lnet_ioctl_config_ni*) data;
+ if (tunables != NULL)
+ tun = (struct lnet_ioctl_config_lnd_tunables*)
+ conf->lic_bulk;
+
+ LIBCFS_IOC_INIT_V2(*conf, lic_cfg_hdr);
+ conf->lic_cfg_hdr.ioc_len = len;
+ conf->lic_nid = nids[i];
+ strncpy(conf->lic_ni_intf, intf_descr->intf_name,
+ LNET_MAX_STR_LEN);
+
+ if (intf_descr->cpt_expr != NULL)
+ cpt_expr = intf_descr->cpt_expr;
+ else if (global_cpts != NULL)
+ cpt_expr = global_cpts;
+ else
+ cpt_expr = NULL;
+
+ if (cpt_expr != NULL) {
+ count = cfs_expr_list_values(cpt_expr,
+ LNET_MAX_SHOW_NUM_CPT,
+ &cpt_array);
+ if (count > 0) {
+ memcpy(conf->lic_cpts, cpt_array,
+ sizeof(cpt_array[0]) * LNET_MAX_STR_LEN);
+ free(cpt_array);
+ } else {
+ count = 0;
+ }
+ } else {
+ count = 0;
+ }
+
+ conf->lic_ncpts = count;
+
+ if (tunables != NULL)
+ memcpy(tun, tunables, sizeof(*tunables));
+
+ rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_ADD_LOCAL_NI, data);
+ if (rc < 0) {
+ rc = -errno;
+ snprintf(err_str,
+ LNET_MAX_STR_LEN,
+ "\"cannot add network: %s\"", strerror(errno));
+ free(data);
+ return rc;
+ }
+ free(data);
+ i++;
+ }
+
+ return LUSTRE_CFG_RC_NO_ERR;
+}
+
+int
+lustre_lnet_config_ip2nets(struct lustre_lnet_ip2nets *ip2nets,
+ struct lnet_ioctl_config_lnd_tunables *tunables,
+ struct cfs_expr_list *global_cpts,
+ int seq_no, struct cYAML **err_rc)
+{
+ lnet_nid_t *nids = NULL;
+ __u32 nnids = 0;
+ int rc;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+
+ if (!ip2nets) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"incomplete ip2nets information\"");
+ rc = LUSTRE_CFG_RC_BAD_PARAM;
+ goto out;
+ }
+
+ /*
+ * call below function to resolve the rules into a list of nids.
+ * The memory is allocated in that function then freed here when
+ * it's no longer needed.
+ */
+ rc = lustre_lnet_resolve_ip2nets_rule(ip2nets, &nids, &nnids, err_str,
+ sizeof(err_str));
+ if (rc != LUSTRE_CFG_RC_NO_ERR && rc != LUSTRE_CFG_RC_MATCH)
+ goto out;
+
+ if (list_empty(&ip2nets->ip2nets_net.nw_intflist)) {
+ snprintf(err_str, sizeof(err_str),
+ "\"no interfaces match ip2nets rules\"");
+ goto free_nids_out;
+ }
+
+ rc = lustre_lnet_ioctl_config_ni(&ip2nets->ip2nets_net.nw_intflist,
+ tunables, global_cpts, nids,
+ err_str);
+
+free_nids_out:
+ free(nids);
+
+out:
+ cYAML_build_error(rc, seq_no, ADD_CMD, "ip2nets", err_str, err_rc);
+ return rc;
+}
+
+int lustre_lnet_config_ni(struct lnet_dlc_network_descr *nw_descr,
+ struct cfs_expr_list *global_cpts,
+ char *ip2net,
+ struct lnet_ioctl_config_lnd_tunables *tunables,
+ int seq_no, struct cYAML **err_rc)
+{
+ char *data = NULL;
+ struct lnet_ioctl_config_ni *conf;
+ struct lnet_ioctl_config_lnd_tunables *tun = NULL;
+ char buf[LNET_MAX_STR_LEN];
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+ lnet_nid_t *nids = NULL;
+ __u32 nnids = 0;
+ size_t len;
+ int count;
+ struct lnet_dlc_intf_descr *intf_descr, *tmp;
+ __u32 *cpt_array;
+
+ if (ip2net == NULL && (nw_descr == NULL || nw_descr->nw_id == 0 ||
+ (list_empty(&nw_descr->nw_intflist) &&
+ LNET_NETTYP(nw_descr->nw_id) != GNILND))) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"missing mandatory parameters in NI config: '%s'\"",
+ (nw_descr == NULL) ? "network , interface" :
+ (nw_descr->nw_id == 0) ? "network" : "interface");
+ rc = LUSTRE_CFG_RC_MISSING_PARAM;
+ goto out;
+ }
+
+ if (ip2net != NULL && strlen(ip2net) >= sizeof(buf)) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"ip2net string too long %d\"",
+ (int)strlen(ip2net));
+ rc = LUSTRE_CFG_RC_OUT_OF_RANGE_PARAM;
+ goto out;
+ }
+
+ if (ip2net != NULL) {
+ if (tunables != NULL)
+ len = sizeof(struct lnet_ioctl_config_ni) +
+ sizeof(struct lnet_ioctl_config_lnd_tunables);
+ else
+ len = sizeof(struct lnet_ioctl_config_ni);
+ data = calloc(1, len);
+ if (!data) {
+ rc = LUSTRE_CFG_RC_OUT_OF_MEM;
+ goto out;
+ }
+ conf = (struct lnet_ioctl_config_ni*) data;
+ if (tunables != NULL)
+ tun = (struct lnet_ioctl_config_lnd_tunables*)
+ (data + sizeof(*conf));
+
+ LIBCFS_IOC_INIT_V2(*conf, lic_cfg_hdr);
+ conf->lic_cfg_hdr.ioc_len = len;
+ strncpy(conf->lic_legacy_ip2nets, ip2net,
+ LNET_MAX_STR_LEN);
+
+ if (global_cpts != NULL) {
+ count = cfs_expr_list_values(global_cpts,
+ LNET_MAX_SHOW_NUM_CPT,
+ &cpt_array);
+ if (count > 0) {
+ memcpy(conf->lic_cpts, cpt_array,
+ sizeof(cpt_array[0]) * LNET_MAX_STR_LEN);
+ free(cpt_array);
+ } else {
+ count = 0;
+ }
+ } else {
+ count = 0;
+ }
+
+ conf->lic_ncpts = count;
+
+ if (tunables != NULL)
+ memcpy(tun, tunables, sizeof(*tunables));
+
+ rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_ADD_LOCAL_NI, data);
+ if (rc < 0) {
+ rc = -errno;
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"cannot add network: %s\"", strerror(errno));
+ goto out;
+ }
+
+ goto out;
+ }
+
+ if (LNET_NETTYP(nw_descr->nw_id) == LOLND) {
+ rc = LUSTRE_CFG_RC_NO_ERR;
+ goto out;
+ }
+
+ if (nw_descr->nw_id == LNET_NET_ANY) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"cannot parse net '%s'\"",
+ libcfs_net2str(nw_descr->nw_id));
+ rc = LUSTRE_CFG_RC_BAD_PARAM;
+ goto out;
+ }
+
+ /*
+ * special case the GNI since no interface name is expected
+ */
+ if (list_empty(&nw_descr->nw_intflist) &&
+ (LNET_NETTYP(nw_descr->nw_id) != GNILND)) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"no interface name provided\"");
+ rc = LUSTRE_CFG_RC_BAD_PARAM;
+ goto out;
+ }
+
+ rc = lustre_lnet_intf2nids(nw_descr, &nids, &nnids,
+ err_str, sizeof(err_str));
+ if (rc != 0) {
+ rc = LUSTRE_CFG_RC_BAD_PARAM;
+ goto out;
+ }
+
+ rc = lustre_lnet_ioctl_config_ni(&nw_descr->nw_intflist,
+ tunables, global_cpts, nids,
+ err_str);
+
+out:
+ if (nw_descr != NULL) {
+ list_for_each_entry_safe(intf_descr, tmp,
+ &nw_descr->nw_intflist,
+ intf_on_network) {
+ list_del(&intf_descr->intf_on_network);
+ free_intf_descr(intf_descr);
+ }
+ }
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, "net", err_str, err_rc);
+
+ if (nids)
+ free(nids);
+
+ if (data)
+ free(data);
+
+ return rc;
+}
+
+int lustre_lnet_del_ni(struct lnet_dlc_network_descr *nw_descr,
+ int seq_no, struct cYAML **err_rc)
+{
+ struct lnet_ioctl_config_ni data;
+ int rc = LUSTRE_CFG_RC_NO_ERR, i;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+ lnet_nid_t *nids = NULL;
+ __u32 nnids = 0;
+ struct lnet_dlc_intf_descr *intf_descr, *tmp;
+
+ if (nw_descr == NULL || nw_descr->nw_id == 0) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"missing mandatory parameter in deleting NI: '%s'\"",
+ (nw_descr == NULL) ? "network , interface" :
+ (nw_descr->nw_id == 0) ? "network" : "interface");
+ rc = LUSTRE_CFG_RC_MISSING_PARAM;
+ goto out;
+ }
+
+ if (LNET_NETTYP(nw_descr->nw_id) == LOLND)
+ return LUSTRE_CFG_RC_NO_ERR;
+
+ if (nw_descr->nw_id == LNET_NET_ANY) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"cannot parse net '%s'\"",
+ libcfs_net2str(nw_descr->nw_id));
+ rc = LUSTRE_CFG_RC_BAD_PARAM;
+ goto out;
+ }
+
+ rc = lustre_lnet_intf2nids(nw_descr, &nids, &nnids,
+ err_str, sizeof(err_str));
+ if (rc != 0) {
+ rc = LUSTRE_CFG_RC_BAD_PARAM;
+ goto out;
+ }
+
+ /*
+ * no interfaces just the nw_id is specified
+ */
+ if (nnids == 0) {
+ nids = calloc(1, sizeof(*nids));
+ if (nids == NULL) {
+ snprintf(err_str, sizeof(err_str),
+ "\"out of memory\"");
+ rc = LUSTRE_CFG_RC_OUT_OF_MEM;
+ goto out;
+ }
+ nids[0] = LNET_MKNID(nw_descr->nw_id, 0);
+ nnids = 1;
+ }
+
+ for (i = 0; i < nnids; i++) {
+ LIBCFS_IOC_INIT_V2(data, lic_cfg_hdr);
+ data.lic_nid = nids[i];
+
+ rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_DEL_LOCAL_NI, &data);
+ if (rc < 0) {
+ rc = -errno;
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"cannot del network: %s\"", strerror(errno));
+ }
+ }
+
+ list_for_each_entry_safe(intf_descr, tmp, &nw_descr->nw_intflist,
+ intf_on_network) {
+ list_del(&intf_descr->intf_on_network);
+ free_intf_descr(intf_descr);
+ }
+
+out:
+ cYAML_build_error(rc, seq_no, DEL_CMD, "net", err_str, err_rc);
+
+ if (nids != NULL)
+ free(nids);
+
+ return rc;
+}
+
+static int
+lustre_lnet_config_healthv(int value, bool all, lnet_nid_t nid,
+ enum lnet_health_type type, char *name,
+ int seq_no, struct cYAML **err_rc)
+{
+ struct lnet_ioctl_reset_health_cfg data;
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+
+ LIBCFS_IOC_INIT_V2(data, rh_hdr);
+ data.rh_type = type;
+ data.rh_all = all;
+ data.rh_value = value;
+ data.rh_nid = nid;
+
+ rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_SET_HEALHV, &data);
+ if (rc != 0) {
+ rc = -errno;
+ snprintf(err_str,
+ sizeof(err_str), "Can not configure health value: %s",
+ strerror(errno));
+ }
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, name, err_str, err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_config_ni_healthv(int value, bool all, char *ni_nid, int seq_no,
+ struct cYAML **err_rc)
+{
+ lnet_nid_t nid;
+ if (ni_nid)
+ nid = libcfs_str2nid(ni_nid);
+ else
+ nid = LNET_NID_ANY;
+ return lustre_lnet_config_healthv(value, all, nid,
+ LNET_HEALTH_TYPE_LOCAL_NI,
+ "ni healthv", seq_no, err_rc);
+}
+
+int lustre_lnet_config_peer_ni_healthv(int value, bool all, char *lpni_nid,
+ int seq_no, struct cYAML **err_rc)
+{
+ lnet_nid_t nid;
+ if (lpni_nid)
+ nid = libcfs_str2nid(lpni_nid);
+ else
+ nid = LNET_NID_ANY;
+ return lustre_lnet_config_healthv(value, all, nid,
+ LNET_HEALTH_TYPE_PEER_NI,
+ "peer_ni healthv", seq_no, err_rc);
+}
+
+static bool
+add_msg_stats_to_yaml_blk(struct cYAML *yaml,
+ struct lnet_ioctl_comm_count *counts)
+{
+ if (cYAML_create_number(yaml, "put",
+ counts->ico_put_count)
+ == NULL)
+ return false;
+ if (cYAML_create_number(yaml, "get",
+ counts->ico_get_count)
+ == NULL)
+ return false;
+ if (cYAML_create_number(yaml, "reply",
+ counts->ico_reply_count)
+ == NULL)
+ return false;
+ if (cYAML_create_number(yaml, "ack",
+ counts->ico_ack_count)
+ == NULL)
+ return false;
+ if (cYAML_create_number(yaml, "hello",
+ counts->ico_hello_count)
+ == NULL)
+ return false;
+
+ return true;
+}
+
+static struct lnet_ioctl_comm_count *
+get_counts(struct lnet_ioctl_element_msg_stats *msg_stats, int idx)
+{
+ if (idx == 0)
+ return &msg_stats->im_send_stats;
+ if (idx == 1)
+ return &msg_stats->im_recv_stats;
+ if (idx == 2)
+ return &msg_stats->im_drop_stats;
+
+ return NULL;
+}
+
+static int
+create_local_udsp_info(struct lnet_ioctl_construct_udsp_info *udsp_info,
+ struct cYAML *net_node)
+{
+ char tmp[LNET_MAX_STR_LEN];
+ struct cYAML *udsp_net;
+ bool created = false;
+ struct cYAML *pref;
+ int i;
+
+ /* add the UDSP info */
+ udsp_net = cYAML_create_object(net_node, "udsp info");
+ if (!udsp_net)
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+
+ if (!cYAML_create_number(udsp_net, "net priority",
+ (int) udsp_info->cud_net_priority))
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+
+ if (!cYAML_create_number(udsp_net, "nid priority",
+ (int)udsp_info->cud_nid_priority))
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+
+ pref = udsp_net;
+
+ for (i = 0; i < LNET_MAX_SHOW_NUM_NID; i++) {
+ memset(tmp, 0, LNET_MAX_STR_LEN);
+ if (udsp_info->cud_pref_rtr_nid[i] == 0)
+ break;
+ if (!created) {
+ pref = cYAML_create_object(udsp_net,
+ "Preferred gateway NIDs");
+ if (!pref)
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+ created = true;
+ }
+ snprintf(tmp, sizeof(tmp), "NID-%d", i);
+ if (!cYAML_create_string(pref, tmp,
+ libcfs_nid2str(udsp_info->cud_pref_rtr_nid[i])))
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+ }
+
+ return LUSTRE_CFG_RC_NO_ERR;
+}
+
+static int
+create_remote_udsp_info(struct lnet_ioctl_construct_udsp_info *udsp_info,
+ struct cYAML *nid_node)
+{
+ char tmp[LNET_MAX_STR_LEN];
+ struct cYAML *udsp_nid;
+ bool created = false;
+ struct cYAML *pref;
+ int i;
+
+ /* add the UDSP info */
+ udsp_nid = cYAML_create_object(nid_node, "udsp info");
+ if (!udsp_nid)
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+
+ if (!cYAML_create_number(udsp_nid, "net priority",
+ (int) udsp_info->cud_net_priority))
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+
+ if (!cYAML_create_number(udsp_nid, "nid priority",
+ (int) udsp_info->cud_nid_priority))
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+
+ pref = udsp_nid;
+ for (i = 0; i < LNET_MAX_SHOW_NUM_NID; i++) {
+ memset(tmp, 0, LNET_MAX_STR_LEN);
+ if (udsp_info->cud_pref_rtr_nid[i] == 0)
+ break;
+ if (!created) {
+ pref = cYAML_create_object(udsp_nid,
+ "Preferred gateway NIDs");
+ if (!pref)
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+ created = true;
+ }
+ snprintf(tmp, sizeof(tmp), "NID-%d", i);
+ if (!cYAML_create_string(pref, tmp,
+ libcfs_nid2str(udsp_info->cud_pref_rtr_nid[i])))
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+ }
+
+ pref = udsp_nid;
+ created = false;
+ for (i = 0; i < LNET_MAX_SHOW_NUM_NID; i++) {
+ memset(tmp, 0, LNET_MAX_STR_LEN);
+ if (udsp_info->cud_pref_nid[i] == 0)
+ break;
+ if (!created) {
+ pref = cYAML_create_object(udsp_nid,
+ "Preferred source NIDs");
+ if (!pref)
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+ created = true;
+ }
+ snprintf(tmp, sizeof(tmp), "NID-%d", i);
+ if (!cYAML_create_string(pref, tmp,
+ libcfs_nid2str(udsp_info->cud_pref_nid[i])))
+ return LUSTRE_CFG_RC_OUT_OF_MEM;
+ }
+
+ return LUSTRE_CFG_RC_NO_ERR;
+}
+
+int lustre_lnet_show_net(char *nw, int detail, int seq_no,
+ struct cYAML **show_rc, struct cYAML **err_rc,
+ bool backup)
+{
+ char *buf;
+ struct lnet_ioctl_config_ni *ni_data;
+ struct lnet_ioctl_config_lnd_tunables *lnd;
+ struct lnet_ioctl_element_stats *stats;
+ struct lnet_ioctl_element_msg_stats msg_stats;
+ struct lnet_ioctl_local_ni_hstats hstats;
+ struct lnet_ioctl_construct_udsp_info udsp_info;
+ __u32 net = LNET_NET_ANY;
+ __u32 prev_net = LNET_NET_ANY;
+ int rc = LUSTRE_CFG_RC_OUT_OF_MEM, i, j;
+ int l_errno = 0;
+ struct cYAML *root = NULL, *tunables = NULL,
+ *net_node = NULL, *interfaces = NULL,
+ *item = NULL, *first_seq = NULL,
+ *tmp = NULL, *statistics = NULL,
+ *yhstats = NULL;
+ int str_buf_len = LNET_MAX_SHOW_NUM_CPT * 2;
+ char str_buf[str_buf_len];
+ char *pos;
+ char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
+ bool exist = false, new_net = true;
+ int net_num = 0;
+ size_t buf_size = sizeof(*ni_data) + sizeof(*lnd) + sizeof(*stats);
+
+ buf = calloc(1, buf_size);
+ if (buf == NULL)
+ goto out;
+
+ ni_data = (struct lnet_ioctl_config_ni *)buf;
+
+ if (nw != NULL) {
+ net = libcfs_str2net(nw);
+ if (net == LNET_NET_ANY) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"cannot parse net '%s'\"", nw);
+ rc = LUSTRE_CFG_RC_BAD_PARAM;
+ goto out;
+ }
+ }
+
+ root = cYAML_create_object(NULL, NULL);
+ if (root == NULL)
+ goto out;
+
+ net_node = cYAML_create_seq(root, "net");
+ if (net_node == NULL)
+ goto out;
+
+ for (i = 0;; i++) {
+ __u32 rc_net;
+
+ memset(buf, 0, buf_size);
+
+ LIBCFS_IOC_INIT_V2(*ni_data, lic_cfg_hdr);
+ /*
+ * set the ioc_len to the proper value since INIT assumes
+ * size of data
+ */
+ ni_data->lic_cfg_hdr.ioc_len = buf_size;
+ ni_data->lic_idx = i;
+
+ rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_LOCAL_NI, ni_data);
+ if (rc != 0) {
+ l_errno = errno;
+ break;
+ }
+
+ rc_net = LNET_NIDNET(ni_data->lic_nid);
+
+ /* filter on provided data */
+ if (net != LNET_NET_ANY &&
+ net != rc_net)
+ continue;
+
+ /* if we're backing up don't store lo */
+ if (backup && LNET_NETTYP(rc_net) == LOLND)
+ continue;
+
+ /* default rc to -1 in case we hit the goto */
+ rc = -1;
+ exist = true;
+
+ stats = (struct lnet_ioctl_element_stats *)ni_data->lic_bulk;
+ lnd = (struct lnet_ioctl_config_lnd_tunables *)
+ (ni_data->lic_bulk + sizeof(*stats));
+
+ if (rc_net != prev_net) {
+ prev_net = rc_net;
+ new_net = true;
+ net_num++;
+ }
+
+ if (new_net) {
+ if (!cYAML_create_string(net_node, "net type",
+ libcfs_net2str(rc_net)))
+ goto out;
+
+ tmp = cYAML_create_seq(net_node, "local NI(s)");
+ if (tmp == NULL)
+ goto out;
+ new_net = false;
+ }
+
+ /* create the tree to be printed. */
+ item = cYAML_create_seq_item(tmp);
+ if (item == NULL)
+ goto out;
+
+ if (first_seq == NULL)
+ first_seq = item;
+
+ if (!backup &&
+ cYAML_create_string(item, "nid",
+ libcfs_nid2str(ni_data->lic_nid)) == NULL)
+ goto out;
+
+ if (!backup &&
+ cYAML_create_string(item,
+ "status",
+ (ni_data->lic_status ==
+ LNET_NI_STATUS_UP) ?
+ "up" : "down") == NULL)
+ goto out;
+
+ /* don't add interfaces unless there is at least one
+ * interface */
+ if (strlen(ni_data->lic_ni_intf) > 0) {
+ interfaces = cYAML_create_object(item, "interfaces");
+ if (interfaces == NULL)
+ goto out;
+
+ snprintf(str_buf, sizeof(str_buf), "%d", 0);
+ if (cYAML_create_string(interfaces, str_buf,
+ ni_data->lic_ni_intf) == NULL)
+ goto out;
+ }
+
+ if (detail) {
+ char *limit;
+ int k;
+
+ if (backup)
+ goto continue_without_msg_stats;
+
+ statistics = cYAML_create_object(item, "statistics");
+ if (statistics == NULL)
+ goto out;
+
+ if (cYAML_create_number(statistics, "send_count",
+ stats->iel_send_count)
+ == NULL)
+ goto out;
+
+ if (cYAML_create_number(statistics, "recv_count",
+ stats->iel_recv_count)
+ == NULL)
+ goto out;
+
+ if (cYAML_create_number(statistics, "drop_count",
+ stats->iel_drop_count)
+ == NULL)
+ goto out;
+
+ if (detail < 4)
+ goto continue_without_udsp_info;
+
+ LIBCFS_IOC_INIT_V2(udsp_info, cud_hdr);
+ udsp_info.cud_nid = ni_data->lic_nid;
+ udsp_info.cud_peer = false;
+ rc = l_ioctl(LNET_DEV_ID,
+ IOC_LIBCFS_GET_CONST_UDSP_INFO,
+ &udsp_info);
+ if (rc != 0) {
+ l_errno = errno;
+ goto continue_without_udsp_info;
+ }
+
+ rc = create_local_udsp_info(&udsp_info, item);
+ if (rc) {
+ l_errno = errno;
+ goto out;
+ }
+
+continue_without_udsp_info:
+ if (detail < 2)
+ goto continue_without_msg_stats;
+
+ LIBCFS_IOC_INIT_V2(msg_stats, im_hdr);
+ msg_stats.im_hdr.ioc_len = sizeof(msg_stats);
+ msg_stats.im_idx = i;
+
+ rc = l_ioctl(LNET_DEV_ID,
+ IOC_LIBCFS_GET_LOCAL_NI_MSG_STATS,
+ &msg_stats);
+ if (rc != 0) {
+ l_errno = errno;
+ goto continue_without_msg_stats;
+ }
+
+ for (k = 0; k < 3; k++) {
+ struct lnet_ioctl_comm_count *counts;
+ struct cYAML *msg_statistics = NULL;
+
+ msg_statistics = cYAML_create_object(item,
+ (char *)gmsg_stat_names[k]);
+ if (msg_statistics == NULL)
+ goto out;
+
+ counts = get_counts(&msg_stats, k);
+ if (counts == NULL)
+ goto out;
+
+ if (!add_msg_stats_to_yaml_blk(msg_statistics,
+ counts))
+ goto out;
+ }
+
+ LIBCFS_IOC_INIT_V2(hstats, hlni_hdr);
+ hstats.hlni_nid = ni_data->lic_nid;
+ /* grab health stats */
+ rc = l_ioctl(LNET_DEV_ID,
+ IOC_LIBCFS_GET_LOCAL_HSTATS,
+ &hstats);
+ if (rc != 0) {
+ l_errno = errno;
+ goto continue_without_msg_stats;
+ }
+ yhstats = cYAML_create_object(item, "health stats");
+ if (!yhstats)
+ goto out;
+ if (cYAML_create_number(yhstats, "health value",
+ hstats.hlni_health_value)
+ == NULL)
+ goto out;
+ if (cYAML_create_number(yhstats, "interrupts",
+ hstats.hlni_local_interrupt)
+ == NULL)
+ goto out;
+ if (cYAML_create_number(yhstats, "dropped",
+ hstats.hlni_local_dropped)
+ == NULL)
+ goto out;
+ if (cYAML_create_number(yhstats, "aborted",
+ hstats.hlni_local_aborted)
+ == NULL)
+ goto out;
+ if (cYAML_create_number(yhstats, "no route",
+ hstats.hlni_local_no_route)
+ == NULL)
+ goto out;
+ if (cYAML_create_number(yhstats, "timeouts",
+ hstats.hlni_local_timeout)
+ == NULL)
+ goto out;
+ if (cYAML_create_number(yhstats, "error",
+ hstats.hlni_local_error)
+ == NULL)
+ goto out;
+
+continue_without_msg_stats:
+ tunables = cYAML_create_object(item, "tunables");
+ if (!tunables)
+ goto out;
+
+ rc = lustre_net_show_tunables(tunables, &lnd->lt_cmn);
+ if (rc != LUSTRE_CFG_RC_NO_ERR)
+ goto out;
+
+ rc = lustre_ni_show_tunables(tunables, LNET_NETTYP(rc_net),
+ &lnd->lt_tun);
+ if (rc != LUSTRE_CFG_RC_NO_ERR &&
+ rc != LUSTRE_CFG_RC_NO_MATCH)
+ goto out;
+
+ if (rc != LUSTRE_CFG_RC_NO_MATCH) {
+ tunables = cYAML_create_object(item,
+ "lnd tunables");
+ if (tunables == NULL)
+ goto out;
+ }
+
+ if (!backup &&
+ cYAML_create_number(item, "dev cpt",
+ ni_data->lic_dev_cpt) == NULL)
+ goto out;
+
+ /* out put the CPTs in the format: "[x,x,x,...]" */
+ pos = str_buf;
+ limit = str_buf + str_buf_len - 3;
+ pos += scnprintf(pos, limit - pos, "\"[");
+ for (j = 0 ; ni_data->lic_ncpts >= 1 &&
+ j < ni_data->lic_ncpts &&
+ pos < limit; j++) {
+ pos += scnprintf(pos, limit - pos,
+ "%d", ni_data->lic_cpts[j]);
+ if ((j + 1) < ni_data->lic_ncpts)
+ pos += scnprintf(pos, limit - pos, ",");
+ }
+ snprintf(pos, 3, "]\"");
+
+ if (ni_data->lic_ncpts >= 1 &&
+ cYAML_create_string(item, "CPT",
+ str_buf) == NULL)
+ goto out;
+ }
+ }
+
+ /* Print out the net information only if show_rc is not provided */
+ if (show_rc == NULL)
+ cYAML_print_tree(root);
+
+ if (l_errno != ENOENT) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"cannot get networks: %s\"",
+ strerror(l_errno));
+ rc = -l_errno;
+ goto out;
+ } else
+ rc = LUSTRE_CFG_RC_NO_ERR;
+
+ snprintf(err_str, sizeof(err_str), "\"success\"");
+out:
+ if (show_rc == NULL || rc != LUSTRE_CFG_RC_NO_ERR || !exist) {
+ cYAML_free_tree(root);
+ } else if (show_rc != NULL && *show_rc != NULL) {
+ struct cYAML *show_node;
+ /* find the net node, if one doesn't exist
+ * then insert one. Otherwise add to the one there
+ */
+ show_node = cYAML_get_object_item(*show_rc, "net");
+ if (show_node != NULL && cYAML_is_sequence(show_node)) {
+ cYAML_insert_child(show_node, first_seq);
+ free(net_node);
+ free(root);
+ } else if (show_node == NULL) {
+ cYAML_insert_sibling((*show_rc)->cy_child,
+ net_node);
+ free(root);
+ } else {
+ cYAML_free_tree(root);
+ }
+ } else {
+ *show_rc = root;
+ }
+
+ cYAML_build_error(rc, seq_no, SHOW_CMD, "net", err_str, err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_enable_routing(int enable, int seq_no, struct cYAML **err_rc)
+{
+ struct lnet_ioctl_config_data data;
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+
+ LIBCFS_IOC_INIT_V2(data, cfg_hdr);
+ data.cfg_config_u.cfg_buffers.buf_enable = (enable) ? 1 : 0;
+
+ rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_CONFIG_RTR, &data);
+ if (rc != 0) {
+ rc = -errno;
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"cannot %s routing %s\"",
+ (enable) ? "enable" : "disable", strerror(errno));
+ goto out;
+ }
+
+out:
+ cYAML_build_error(rc, seq_no,
+ (enable) ? ADD_CMD : DEL_CMD,
+ "routing", err_str, err_rc);
+
+ return rc;
+}
+
+int ioctl_set_value(__u32 val, int ioc, char *name,
+ int seq_no, struct cYAML **err_rc)
+{
+ struct lnet_ioctl_set_value data;
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+
+ LIBCFS_IOC_INIT_V2(data, sv_hdr);
+ data.sv_value = val;
+
+ rc = l_ioctl(LNET_DEV_ID, ioc , &data);
+ if (rc != 0) {
+ rc = -errno;
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"cannot configure %s to %d: %s\"", name,
+ val, strerror(errno));
+ }
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, name, err_str, err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_config_recov_intrv(int intrv, int seq_no, struct cYAML **err_rc)
+{
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+ char val[LNET_MAX_STR_LEN];
+
+ snprintf(val, sizeof(val), "%d", intrv);
+
+ rc = write_sysfs_file(modparam_path, "lnet_recovery_interval", val,
+ 1, strlen(val) + 1);
+ if (rc)
+ snprintf(err_str, sizeof(err_str),
+ "\"cannot configure recovery interval: %s\"",
+ strerror(errno));
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, "recovery_interval", err_str, err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_config_rtr_sensitivity(int sen, int seq_no, struct cYAML **err_rc)
+{
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+ char val[LNET_MAX_STR_LEN];
+
+ snprintf(val, sizeof(val), "%d", sen);
+
+ rc = write_sysfs_file(modparam_path, "router_sensitivity_percentage", val,
+ 1, strlen(val) + 1);
+ if (rc)
+ snprintf(err_str, sizeof(err_str),
+ "\"cannot configure router health sensitivity: %s\"",
+ strerror(errno));
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, "router_sensitivity", err_str, err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_config_hsensitivity(int sen, int seq_no, struct cYAML **err_rc)
+{
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+ char val[LNET_MAX_STR_LEN];
+
+ snprintf(val, sizeof(val), "%d", sen);
+
+ rc = write_sysfs_file(modparam_path, "lnet_health_sensitivity", val,
+ 1, strlen(val) + 1);
+ if (rc)
+ snprintf(err_str, sizeof(err_str),
+ "\"cannot configure health sensitivity: %s\"",
+ strerror(errno));
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, "health_sensitivity", err_str, err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_config_transaction_to(int timeout, int seq_no, struct cYAML **err_rc)
+{
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+ char val[LNET_MAX_STR_LEN];
+
+ snprintf(val, sizeof(val), "%d", timeout);
+
+ rc = write_sysfs_file(modparam_path, "lnet_transaction_timeout", val,
+ 1, strlen(val) + 1);
+ if (rc)
+ snprintf(err_str, sizeof(err_str),
+ "\"cannot configure transaction timeout: %s\"",
+ strerror(errno));
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, "transaction_timeout", err_str, err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_config_retry_count(int count, int seq_no, struct cYAML **err_rc)
+{
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+ char val[LNET_MAX_STR_LEN];
+
+ snprintf(val, sizeof(val), "%d", count);
+
+ rc = write_sysfs_file(modparam_path, "lnet_retry_count", val,
+ 1, strlen(val) + 1);
+ if (rc)
+ snprintf(err_str, sizeof(err_str),
+ "\"cannot configure retry count: %s\"",
+ strerror(errno));
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, "retry_count", err_str, err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_config_response_tracking(int val, int seq_no,
+ struct cYAML **err_rc)
+{
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN];
+ char val_str[LNET_MAX_STR_LEN];
+
+ if (val < 0 || val > 3) {
+ rc = LUSTRE_CFG_RC_BAD_PARAM;
+ snprintf(err_str, sizeof(err_str),
+ "\"Valid values are: 0, 1, 2, or 3\"");
+ } else {
+ snprintf(err_str, sizeof(err_str), "\"success\"");
+
+ snprintf(val_str, sizeof(val_str), "%d", val);
+
+ rc = write_sysfs_file(modparam_path, "lnet_response_tracking",
+ val_str, 1, strlen(val_str) + 1);
+ if (rc)
+ snprintf(err_str, sizeof(err_str),
+ "\"cannot configure response tracking: %s\"",
+ strerror(errno));
+ }
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, "response_tracking", err_str,
+ err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_config_recovery_limit(int val, int seq_no,
+ struct cYAML **err_rc)
+{
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN];
+ char val_str[LNET_MAX_STR_LEN];
+
+ if (val < 0) {
+ rc = LUSTRE_CFG_RC_BAD_PARAM;
+ snprintf(err_str, sizeof(err_str),
+ "\"Must be greater than or equal to 0\"");
+ } else {
+ snprintf(err_str, sizeof(err_str), "\"success\"");
+
+ snprintf(val_str, sizeof(val_str), "%d", val);
+
+ rc = write_sysfs_file(modparam_path, "lnet_recovery_limit",
+ val_str, 1, strlen(val_str) + 1);
+ if (rc)
+ snprintf(err_str, sizeof(err_str),
+ "\"cannot configure recovery limit: %s\"",
+ strerror(errno));
+ }
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, "recovery_limit", err_str,
+ err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_config_max_intf(int max, int seq_no, struct cYAML **err_rc)
+{
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+ char val[LNET_MAX_STR_LEN];
+
+ snprintf(val, sizeof(val), "%d", max);
+
+ rc = write_sysfs_file(modparam_path, "lnet_interfaces_max", val,
+ 1, strlen(val) + 1);
+ if (rc)
+ snprintf(err_str, sizeof(err_str),
+ "\"cannot configure max interfaces: %s\"",
+ strerror(errno));
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, "max_interfaces", err_str, err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_config_discovery(int enable, int seq_no, struct cYAML **err_rc)
+{
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+ char val[LNET_MAX_STR_LEN];
+
+ snprintf(val, sizeof(val), "%u", (enable) ? 0 : 1);
+
+ rc = write_sysfs_file(modparam_path, "lnet_peer_discovery_disabled", val,
+ 1, strlen(val) + 1);
+ if (rc)
+ snprintf(err_str, sizeof(err_str),
+ "\"cannot configure discovery: %s\"",
+ strerror(errno));
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, "discovery", err_str, err_rc);
+
+ return rc;
+
+}
+
+int lustre_lnet_config_drop_asym_route(int drop, int seq_no,
+ struct cYAML **err_rc)
+{
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+ char val[LNET_MAX_STR_LEN];
+
+ snprintf(val, sizeof(val), "%u", (drop) ? 1 : 0);
+
+ rc = write_sysfs_file(modparam_path, "lnet_drop_asym_route", val,
+ 1, strlen(val) + 1);
+ if (rc)
+ snprintf(err_str, sizeof(err_str),
+ "\"cannot configure drop asym route: %s\"",
+ strerror(errno));
+
+ cYAML_build_error(rc, seq_no, ADD_CMD, "drop_asym_route",
+ err_str, err_rc);
+
+ return rc;
+
+}
+
+int lustre_lnet_config_numa_range(int range, int seq_no, struct cYAML **err_rc)
+{
+ return ioctl_set_value(range, IOC_LIBCFS_SET_NUMA_RANGE,
+ "numa_range", seq_no, err_rc);
+}
+
+int lustre_lnet_config_buffers(int tiny, int small, int large, int seq_no,
+ struct cYAML **err_rc)
+{
+ struct lnet_ioctl_config_data data;
+ int rc = LUSTRE_CFG_RC_NO_ERR;
+ char err_str[LNET_MAX_STR_LEN] = "\"success\"";
+
+ /* -1 indicates to ignore changes to this field */
+ if (tiny < -1 || small < -1 || large < -1) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"tiny, small and large must be >= 0\"");
+ rc = LUSTRE_CFG_RC_OUT_OF_RANGE_PARAM;
+ goto out;
+ }
+
+ LIBCFS_IOC_INIT_V2(data, cfg_hdr);
+ data.cfg_config_u.cfg_buffers.buf_tiny = tiny;
+ data.cfg_config_u.cfg_buffers.buf_small = small;
+ data.cfg_config_u.cfg_buffers.buf_large = large;
+
+ rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_ADD_BUF, &data);
+ if (rc != 0) {
+ rc = -errno;
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"cannot configure buffers: %s\"", strerror(errno));
+ goto out;
+ }
+
+out:
+ cYAML_build_error(rc, seq_no, ADD_CMD, "buf", err_str, err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_show_routing(int seq_no, struct cYAML **show_rc,
+ struct cYAML **err_rc, bool backup)
+{
+ struct lnet_ioctl_config_data *data;
+ struct lnet_ioctl_pool_cfg *pool_cfg = NULL;
+ int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
+ int l_errno = 0;
+ char *buf;
+ char *pools[LNET_NRBPOOLS] = {"tiny", "small", "large"};
+ int buf_count[LNET_NRBPOOLS] = {0};
+ struct cYAML *root = NULL, *pools_node = NULL,
+ *type_node = NULL, *item = NULL, *cpt = NULL,
+ *first_seq = NULL, *buffers = NULL;
+ int i, j;
+ char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
+ char node_name[LNET_MAX_STR_LEN];
+ bool exist = false;
+
+ buf = calloc(1, sizeof(*data) + sizeof(*pool_cfg));
+ if (buf == NULL)
+ goto out;
+
+ data = (struct lnet_ioctl_config_data *)buf;
+
+ root = cYAML_create_object(NULL, NULL);
+ if (root == NULL)
+ goto out;
+
+ if (backup)
+ pools_node = cYAML_create_object(root, "routing");
+ else
+ pools_node = cYAML_create_seq(root, "routing");
+ if (pools_node == NULL)
+ goto out;
+
+ for (i = 0;; i++) {
+ LIBCFS_IOC_INIT_V2(*data, cfg_hdr);
+ data->cfg_hdr.ioc_len = sizeof(struct lnet_ioctl_config_data) +
+ sizeof(struct lnet_ioctl_pool_cfg);
+ data->cfg_count = i;
+
+ rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_BUF, data);
+ if (rc != 0) {
+ l_errno = errno;
+ break;
+ }
+
+ exist = true;
+
+ pool_cfg = (struct lnet_ioctl_pool_cfg *)data->cfg_bulk;
+
+ if (backup)
+ goto calculate_buffers;
+
+ snprintf(node_name, sizeof(node_name), "cpt[%d]", i);
+ item = cYAML_create_seq_item(pools_node);
+ if (item == NULL)
+ goto out;
+
+ if (first_seq == NULL)
+ first_seq = item;
+
+ cpt = cYAML_create_object(item, node_name);
+ if (cpt == NULL)
+ goto out;
+
+calculate_buffers:
+ /* create the tree and print */
+ for (j = 0; j < LNET_NRBPOOLS; j++) {
+ if (!backup) {
+ type_node = cYAML_create_object(cpt, pools[j]);
+ if (type_node == NULL)
+ goto out;
+ }
+ if (!backup &&
+ cYAML_create_number(type_node, "npages",
+ pool_cfg->pl_pools[j].pl_npages)
+ == NULL)
+ goto out;
+ if (!backup &&
+ cYAML_create_number(type_node, "nbuffers",
+ pool_cfg->pl_pools[j].
+ pl_nbuffers) == NULL)
+ goto out;
+ if (!backup &&
+ cYAML_create_number(type_node, "credits",
+ pool_cfg->pl_pools[j].
+ pl_credits) == NULL)
+ goto out;
+ if (!backup &&
+ cYAML_create_number(type_node, "mincredits",
+ pool_cfg->pl_pools[j].
+ pl_mincredits) == NULL)
+ goto out;
+ /* keep track of the total count for each of the
+ * tiny, small and large buffers */
+ buf_count[j] += pool_cfg->pl_pools[j].pl_nbuffers;
+ }
+ }
+
+ if (pool_cfg != NULL) {
+ if (backup) {
+ if (cYAML_create_number(pools_node, "enable",
+ pool_cfg->pl_routing) ==
+ NULL)
+ goto out;
+
+ goto add_buffer_section;
+ }
+
+ item = cYAML_create_seq_item(pools_node);
+ if (item == NULL)
+ goto out;
+
+ if (cYAML_create_number(item, "enable", pool_cfg->pl_routing) ==
+ NULL)
+ goto out;
+ }
+
+add_buffer_section:
+ /* create a buffers entry in the show. This is necessary so that
+ * if the YAML output is used to configure a node, the buffer
+ * configuration takes hold */
+ buffers = cYAML_create_object(root, "buffers");
+ if (buffers == NULL)
+ goto out;
+
+ for (i = 0; i < LNET_NRBPOOLS; i++) {
+ if (cYAML_create_number(buffers, pools[i], buf_count[i]) == NULL)
+ goto out;
+ }
+
+ if (show_rc == NULL)
+ cYAML_print_tree(root);
+
+ if (l_errno != ENOENT) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"cannot get routing information: %s\"",
+ strerror(l_errno));
+ rc = -l_errno;
+ goto out;
+ } else
+ rc = LUSTRE_CFG_RC_NO_ERR;
+
+ snprintf(err_str, sizeof(err_str), "\"success\"");
+ rc = LUSTRE_CFG_RC_NO_ERR;
+
+out:
+ free(buf);
+ if (show_rc == NULL || rc != LUSTRE_CFG_RC_NO_ERR || !exist) {
+ cYAML_free_tree(root);
+ } else if (show_rc != NULL && *show_rc != NULL) {
+ struct cYAML *routing_node;
+ /* there should exist only one routing block and one
+ * buffers block. If there already exists a previous one
+ * then don't add another */
+ routing_node = cYAML_get_object_item(*show_rc, "routing");
+ if (routing_node == NULL) {
+ cYAML_insert_sibling((*show_rc)->cy_child,
+ root->cy_child);
+ free(root);
+ } else {
+ cYAML_free_tree(root);
+ }
+ } else {
+ *show_rc = root;
+ }
+
+ cYAML_build_error(rc, seq_no, SHOW_CMD, "routing", err_str, err_rc);
+
+ return rc;
+}
+
+int lustre_lnet_show_peer(char *knid, int detail, int seq_no,
+ struct cYAML **show_rc, struct cYAML **err_rc,
+ bool backup)
+{
+ /*
+ * TODO: This function is changing in a future patch to accommodate
+ * PEER_LIST and proper filtering on any nid of the peer
+ */
+ struct lnet_ioctl_peer_cfg peer_info;
+ struct lnet_peer_ni_credit_info *lpni_cri;
+ struct lnet_ioctl_element_stats *lpni_stats;
+ struct lnet_ioctl_element_msg_stats *msg_stats;
+ struct lnet_ioctl_peer_ni_hstats *hstats;
+ struct lnet_ioctl_construct_udsp_info udsp_info;
+ lnet_nid_t *nidp;
+ int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
+ int i, j, k;
+ int l_errno = 0;
+ __u32 count;
+ __u32 size;
+ struct cYAML *root = NULL, *peer = NULL, *peer_ni = NULL,
+ *first_seq = NULL, *peer_root = NULL, *tmp = NULL,
+ *msg_statistics = NULL, *statistics = NULL,
+ *yhstats;
+ char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
+ struct lnet_process_id *list = NULL;
+ void *data = NULL;
+ void *lpni_data;
+ bool exist = false;
+
+ /* create struct cYAML root object */
+ root = cYAML_create_object(NULL, NULL);
+ if (root == NULL)
+ goto out;
+
+ peer_root = cYAML_create_seq(root, "peer");
+ if (peer_root == NULL)
+ goto out;
+
+ count = 1000;
+ size = count * sizeof(struct lnet_process_id);
+ list = malloc(size);
+ if (list == NULL) {
+ l_errno = ENOMEM;
+ goto out;
+ }
+ if (knid != NULL) {
+ list[0].nid = libcfs_str2nid(knid);
+ count = 1;
+ } else {
+ for (;;) {
+ memset(&peer_info, 0, sizeof(peer_info));
+ LIBCFS_IOC_INIT_V2(peer_info, prcfg_hdr);
+ peer_info.prcfg_hdr.ioc_len = sizeof(peer_info);
+ peer_info.prcfg_size = size;
+ peer_info.prcfg_bulk = list;
+
+ l_errno = 0;
+ rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_PEER_LIST,
+ &peer_info);
+ count = peer_info.prcfg_count;
+ if (rc == 0)
+ break;
+ l_errno = errno;
+ if (l_errno != E2BIG) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"cannot get peer list: %s\"",
+ strerror(l_errno));
+ rc = -l_errno;
+ goto out;
+ }
+ free(list);
+ size = peer_info.prcfg_size;
+ list = malloc(size);
+ if (list == NULL) {
+ l_errno = ENOMEM;
+ goto out;
+ }
+ }
+ }
+
+ size = 4096;
+ data = malloc(size);
+ if (data == NULL) {
+ l_errno = ENOMEM;
+ goto out;
+ }
+
+ for (i = 0; i < count; i++) {
+ for (;;) {
+ memset(&peer_info, 0, sizeof(peer_info));
+ LIBCFS_IOC_INIT_V2(peer_info, prcfg_hdr);
+ peer_info.prcfg_hdr.ioc_len = sizeof(peer_info);
+ peer_info.prcfg_prim_nid = list[i].nid;
+ peer_info.prcfg_size = size;
+ peer_info.prcfg_bulk = data;
+
+ l_errno = 0;
+ rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_PEER_NI,
+ &peer_info);
+ if (rc == 0)
+ break;
+ l_errno = errno;
+ if (l_errno != E2BIG) {
+ snprintf(err_str,
+ sizeof(err_str),
+ "\"cannot get peer information: %s\"",
+ strerror(l_errno));
+ rc = -l_errno;
+ goto out;
+ }
+ free(data);
+ size = peer_info.prcfg_size;
+ data = malloc(size);
+ if (data == NULL) {
+ l_errno = ENOMEM;
+ goto out;
+ }
+ }
+ exist = true;
+
+ peer = cYAML_create_seq_item(peer_root);
+ if (peer == NULL)
+ goto out;
+
+ if (first_seq == NULL)
+ first_seq = peer;
+
+ lnet_nid_t pnid = peer_info.prcfg_prim_nid;
+ if (cYAML_create_string(peer, "primary nid",
+ libcfs_nid2str(pnid))
+ == NULL)
+ goto out;
+ if (cYAML_create_string(peer, "Multi-Rail",
+ peer_info.prcfg_mr ? "True" : "False")
+ == NULL)
+ goto out;
+ /*
+ * print out the state of the peer only if details are
+ * requested
+ */
+ if (detail >= 3) {
+ if (!backup &&
+ cYAML_create_number(peer, "peer state",
+ peer_info.prcfg_state)
+ == NULL)
+ goto out;
+ }
+
+ tmp = cYAML_create_seq(peer, "peer ni");
+ if (tmp == NULL)
+ goto out;
+
+ lpni_data = data;
+ for (j = 0; j < peer_info.prcfg_count; j++) {
+ nidp = lpni_data;
+ lpni_cri = (void*)nidp + sizeof(nidp);
+ lpni_stats = (void *)lpni_cri + sizeof(*lpni_cri);
+ msg_stats = (void *)lpni_stats + sizeof(*lpni_stats);
+ hstats = (void *)msg_stats + sizeof(*msg_stats);
+ lpni_data = (void *)hstats + sizeof(*hstats);
+
+ peer_ni = cYAML_create_seq_item(tmp);
+ if (peer_ni == NULL)
+ goto out;
+
+ if (cYAML_create_string(peer_ni, "nid",
+ libcfs_nid2str(*nidp))
+ == NULL)
+ goto out;
+
+ if (backup)
+ continue;
+
+ if (detail < 4)
+ goto continue_without_udsp_info;
+
+ LIBCFS_IOC_INIT_V2(udsp_info, cud_hdr);
+ udsp_info.cud_nid = *nidp;
+ udsp_info.cud_peer = true;
+ rc = l_ioctl(LNET_DEV_ID,
+ IOC_LIBCFS_GET_CONST_UDSP_INFO,
+ &udsp_info);
+ if (rc != 0) {
+ l_errno = errno;
+ goto continue_without_udsp_info;
+ }
+
+ rc = create_remote_udsp_info(&udsp_info, peer_ni);
+ if (rc) {
+ l_errno = errno;
+ goto out;
+ }
+
+continue_without_udsp_info:
+ if (cYAML_create_string(peer_ni, "state",
+ lpni_cri->cr_aliveness)
+ == NULL)
+ goto out;
+
+ if (!detail)
+ continue;
+
+ if (cYAML_create_number(peer_ni, "max_ni_tx_credits",
+ lpni_cri->cr_ni_peer_tx_credits)
+ == NULL)
+ goto out;
+
+ if (cYAML_create_number(peer_ni, "available_tx_credits",
+ lpni_cri->cr_peer_tx_credits)
+ == NULL)
+ goto out;
+
+ if (cYAML_create_number(peer_ni, "min_tx_credits",
+ lpni_cri->cr_peer_min_tx_credits)
+ == NULL)
+ goto out;
+
+ if (cYAML_create_number(peer_ni, "tx_q_num_of_buf",
+ lpni_cri->cr_peer_tx_qnob)
+ == NULL)
+ goto out;
+
+ if (cYAML_create_number(peer_ni, "available_rtr_credits",
+ lpni_cri->cr_peer_rtr_credits)
+ == NULL)
+ goto out;
+
+ if (cYAML_create_number(peer_ni, "min_rtr_credits",
+ lpni_cri->cr_peer_min_rtr_credits)
+ == NULL)
+ goto out;
+
+ if (cYAML_create_number(peer_ni, "refcount",
+ lpni_cri->cr_refcount) == NULL)
+ goto out;
+
+ statistics = cYAML_create_object(peer_ni, "statistics");
+ if (statistics == NULL)
+ goto out;
+
+ if (cYAML_create_number(statistics, "send_count",
+ lpni_stats->iel_send_count)
+ == NULL)
+ goto out;
+
+ if (cYAML_create_number(statistics, "recv_count",
+ lpni_stats->iel_recv_count)
+ == NULL)
+ goto out;
+
+ if (cYAML_create_number(statistics, "drop_count",
+ lpni_stats->iel_drop_count)
+ == NULL)
+ goto out;
+
+ if (detail < 2)
+ continue;
+
+ for (k = 0; k < 3; k++) {
+ struct lnet_ioctl_comm_count *counts;
+
+ msg_statistics = cYAML_create_object(peer_ni,
+ (char *) gmsg_stat_names[k]);
+ if (msg_statistics == NULL)
+ goto out;
+
+ counts = get_counts(msg_stats, k);
+ if (counts == NULL)
+ goto out;
+
+ if (!add_msg_stats_to_yaml_blk(msg_statistics,
+ counts))
+ goto out;
+ }
+
+ yhstats = cYAML_create_object(peer_ni, "health stats");
+ if (!yhstats)
+ goto out;
+ if (cYAML_create_number(yhstats, "health value",
+ hstats->hlpni_health_value)
+ == NULL)
+ goto out;
+ if (cYAML_create_number(yhstats, "dropped",
+ hstats->hlpni_remote_dropped)
+ == NULL)
+ goto out;
+ if (cYAML_create_number(yhstats, "timeout",
+ hstats->hlpni_remote_timeout)
+ == NULL)
+ goto out;
+ if (cYAML_create_number(yhstats, "error",
+ hstats->hlpni_remote_error)
+ == NULL)
+ goto out;
+ if (cYAML_create_number(yhstats, "network timeout",
+ hstats->hlpni_network_timeout)
+ == NULL)
+ goto out;
+ }
+ }
+
+ /* print output iff show_rc is not provided */
+ if (show_rc == NULL)
+ cYAML_print_tree(root);
+
+ snprintf(err_str, sizeof(err_str), "\"success\"");
+ rc = LUSTRE_CFG_RC_NO_ERR;
+
+out:
+ free(list);
+ free(data);