1/* 2 * GPL 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 General Public License version 2 only, 8 * as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * General Public License version 2 for more details (a copy is included 14 * in the LICENSE file that accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License 17 * version 2 along with this program; If not, see 18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf 19 * 20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 21 * CA 95054 USA or visit www.sun.com if you need additional information or 22 * have any questions. 23 * 24 * GPL HEADER END 25 */ 26/* 27 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. 28 * Use is subject to license terms. 29 * 30 * Copyright (c) 2011, 2012, Intel Corporation. 31 */ 32/* 33 * This file is part of Lustre, http://www.lustre.org/ 34 * Lustre is a trademark of Sun Microsystems, Inc. 35 */ 36#define DEBUG_SUBSYSTEM S_CLASS 37 38#include <linux/vfs.h> 39#include "../include/obd_class.h" 40#include "../include/lprocfs_status.h" 41 42static int mdc_max_rpcs_in_flight_seq_show(struct seq_file *m, void *v) 43{ 44 struct obd_device *dev = m->private; 45 struct client_obd *cli = &dev->u.cli; 46 int rc; 47 48 client_obd_list_lock(&cli->cl_loi_list_lock); 49 rc = seq_printf(m, "%u\n", cli->cl_max_rpcs_in_flight); 50 client_obd_list_unlock(&cli->cl_loi_list_lock); 51 return rc; 52} 53 54static ssize_t mdc_max_rpcs_in_flight_seq_write(struct file *file, 55 const char *buffer, 56 size_t count, 57 loff_t *off) 58{ 59 struct obd_device *dev = 60 ((struct seq_file *)file->private_data)->private; 61 struct client_obd *cli = &dev->u.cli; 62 int val, rc; 63 64 rc = lprocfs_write_helper(buffer, count, &val); 65 if (rc) 66 return rc; 67 68 if (val < 1 || val > MDC_MAX_RIF_MAX) 69 return -ERANGE; 70 71 client_obd_list_lock(&cli->cl_loi_list_lock); 72 cli->cl_max_rpcs_in_flight = val; 73 client_obd_list_unlock(&cli->cl_loi_list_lock); 74 75 return count; 76} 77LPROC_SEQ_FOPS(mdc_max_rpcs_in_flight); 78 79static int mdc_kuc_open(struct inode *inode, struct file *file) 80{ 81 return single_open(file, NULL, PDE_DATA(inode)); 82} 83 84/* temporary for testing */ 85static ssize_t mdc_kuc_write(struct file *file, const char *buffer, 86 size_t count, loff_t *off) 87{ 88 struct obd_device *obd = 89 ((struct seq_file *)file->private_data)->private; 90 struct kuc_hdr *lh; 91 struct hsm_action_list *hal; 92 struct hsm_action_item *hai; 93 int len; 94 int fd, rc; 95 96 rc = lprocfs_write_helper(buffer, count, &fd); 97 if (rc) 98 return rc; 99 100 if (fd < 0) 101 return -ERANGE; 102 CWARN("message to fd %d\n", fd); 103 104 len = sizeof(*lh) + sizeof(*hal) + MTI_NAME_MAXLEN + 105 /* for mockup below */ 2 * cfs_size_round(sizeof(*hai)); 106 107 OBD_ALLOC(lh, len); 108 109 lh->kuc_magic = KUC_MAGIC; 110 lh->kuc_transport = KUC_TRANSPORT_HSM; 111 lh->kuc_msgtype = HMT_ACTION_LIST; 112 lh->kuc_msglen = len; 113 114 hal = (struct hsm_action_list *)(lh + 1); 115 hal->hal_version = HAL_VERSION; 116 hal->hal_archive_id = 1; 117 hal->hal_flags = 0; 118 obd_uuid2fsname(hal->hal_fsname, obd->obd_name, MTI_NAME_MAXLEN); 119 120 /* mock up an action list */ 121 hal->hal_count = 2; 122 hai = hai_zero(hal); 123 hai->hai_action = HSMA_ARCHIVE; 124 hai->hai_fid.f_oid = 5; 125 hai->hai_len = sizeof(*hai); 126 hai = hai_next(hai); 127 hai->hai_action = HSMA_RESTORE; 128 hai->hai_fid.f_oid = 10; 129 hai->hai_len = sizeof(*hai); 130 131 /* This works for either broadcast or unicast to a single fd */ 132 if (fd == 0) { 133 rc = libcfs_kkuc_group_put(KUC_GRP_HSM, lh); 134 } else { 135 struct file *fp = fget(fd); 136 137 rc = libcfs_kkuc_msg_put(fp, lh); 138 fput(fp); 139 } 140 OBD_FREE(lh, len); 141 if (rc < 0) 142 return rc; 143 return count; 144} 145 146struct file_operations mdc_kuc_fops = { 147 .open = mdc_kuc_open, 148 .write = mdc_kuc_write, 149 .release = single_release, 150}; 151 152LPROC_SEQ_FOPS_WR_ONLY(mdc, ping); 153 154LPROC_SEQ_FOPS_RO_TYPE(mdc, uuid); 155LPROC_SEQ_FOPS_RO_TYPE(mdc, connect_flags); 156LPROC_SEQ_FOPS_RO_TYPE(mdc, blksize); 157LPROC_SEQ_FOPS_RO_TYPE(mdc, kbytestotal); 158LPROC_SEQ_FOPS_RO_TYPE(mdc, kbytesfree); 159LPROC_SEQ_FOPS_RO_TYPE(mdc, kbytesavail); 160LPROC_SEQ_FOPS_RO_TYPE(mdc, filestotal); 161LPROC_SEQ_FOPS_RO_TYPE(mdc, filesfree); 162LPROC_SEQ_FOPS_RO_TYPE(mdc, server_uuid); 163LPROC_SEQ_FOPS_RO_TYPE(mdc, conn_uuid); 164LPROC_SEQ_FOPS_RO_TYPE(mdc, timeouts); 165LPROC_SEQ_FOPS_RO_TYPE(mdc, state); 166 167static int mdc_obd_max_pages_per_rpc_seq_show(struct seq_file *m, void *v) 168{ 169 return lprocfs_obd_rd_max_pages_per_rpc(m, m->private); 170} 171LPROC_SEQ_FOPS_RO(mdc_obd_max_pages_per_rpc); 172 173LPROC_SEQ_FOPS_RW_TYPE(mdc, import); 174LPROC_SEQ_FOPS_RW_TYPE(mdc, pinger_recov); 175 176static struct lprocfs_vars lprocfs_mdc_obd_vars[] = { 177 { "uuid", &mdc_uuid_fops, NULL, 0 }, 178 { "ping", &mdc_ping_fops, NULL, 0222 }, 179 { "connect_flags", &mdc_connect_flags_fops, NULL, 0 }, 180 { "blocksize", &mdc_blksize_fops, NULL, 0 }, 181 { "kbytestotal", &mdc_kbytestotal_fops, NULL, 0 }, 182 { "kbytesfree", &mdc_kbytesfree_fops, NULL, 0 }, 183 { "kbytesavail", &mdc_kbytesavail_fops, NULL, 0 }, 184 { "filestotal", &mdc_filestotal_fops, NULL, 0 }, 185 { "filesfree", &mdc_filesfree_fops, NULL, 0 }, 186 /*{ "filegroups", lprocfs_rd_filegroups, NULL, 0 },*/ 187 { "mds_server_uuid", &mdc_server_uuid_fops, NULL, 0 }, 188 { "mds_conn_uuid", &mdc_conn_uuid_fops, NULL, 0 }, 189 /* 190 * FIXME: below proc entry is provided, but not in used, instead 191 * sbi->sb_md_brw_size is used, the per obd variable should be used 192 * when CMD is enabled, and dir pages are managed in MDC layer. 193 * Remember to enable proc write function. 194 */ 195 { "max_pages_per_rpc", &mdc_obd_max_pages_per_rpc_fops, NULL, 0 }, 196 { "max_rpcs_in_flight", &mdc_max_rpcs_in_flight_fops, NULL, 0 }, 197 { "timeouts", &mdc_timeouts_fops, NULL, 0 }, 198 { "import", &mdc_import_fops, NULL, 0 }, 199 { "state", &mdc_state_fops, NULL, 0 }, 200 { "hsm_nl", &mdc_kuc_fops, NULL, 0200 }, 201 { "pinger_recov", &mdc_pinger_recov_fops, NULL, 0 }, 202 { NULL } 203}; 204 205LPROC_SEQ_FOPS_RO_TYPE(mdc, numrefs); 206 207static struct lprocfs_vars lprocfs_mdc_module_vars[] = { 208 { "num_refs", &mdc_numrefs_fops, NULL, 0 }, 209 { NULL } 210}; 211 212void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars) 213{ 214 lvars->module_vars = lprocfs_mdc_module_vars; 215 lvars->obd_vars = lprocfs_mdc_obd_vars; 216} 217