lproc_mdc.c revision 777a9f4aa7dcd2c1c3573a5c0e739286678d509b
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 <obd_class.h> 40#include <lprocfs_status.h> 41 42#ifdef LPROCFS 43 44static int mdc_max_rpcs_in_flight_seq_show(struct seq_file *m, void *v) 45{ 46 struct obd_device *dev = m->private; 47 struct client_obd *cli = &dev->u.cli; 48 int rc; 49 50 client_obd_list_lock(&cli->cl_loi_list_lock); 51 rc = seq_printf(m, "%u\n", cli->cl_max_rpcs_in_flight); 52 client_obd_list_unlock(&cli->cl_loi_list_lock); 53 return rc; 54} 55 56static ssize_t mdc_max_rpcs_in_flight_seq_write(struct file *file, 57 const char *buffer, 58 size_t count, 59 loff_t *off) 60{ 61 struct obd_device *dev = ((struct seq_file *)file->private_data)->private; 62 struct client_obd *cli = &dev->u.cli; 63 int val, rc; 64 65 rc = lprocfs_write_helper(buffer, count, &val); 66 if (rc) 67 return rc; 68 69 if (val < 1 || val > MDC_MAX_RIF_MAX) 70 return -ERANGE; 71 72 client_obd_list_lock(&cli->cl_loi_list_lock); 73 cli->cl_max_rpcs_in_flight = val; 74 client_obd_list_unlock(&cli->cl_loi_list_lock); 75 76 return count; 77} 78LPROC_SEQ_FOPS(mdc_max_rpcs_in_flight); 79 80static int mdc_kuc_open(struct inode *inode, struct file *file) 81{ 82 return single_open(file, NULL, PDE_DATA(inode)); 83} 84 85/* temporary for testing */ 86static ssize_t mdc_kuc_write(struct file *file, const char *buffer, 87 size_t count, loff_t *off) 88{ 89 struct obd_device *obd = ((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 ENTRY; 96 97 rc = lprocfs_write_helper(buffer, count, &fd); 98 if (rc) 99 RETURN(rc); 100 101 if (fd < 0) 102 RETURN(-ERANGE); 103 CWARN("message to fd %d\n", fd); 104 105 len = sizeof(*lh) + sizeof(*hal) + MTI_NAME_MAXLEN + 106 /* for mockup below */ 2 * cfs_size_round(sizeof(*hai)); 107 108 OBD_ALLOC(lh, len); 109 110 lh->kuc_magic = KUC_MAGIC; 111 lh->kuc_transport = KUC_TRANSPORT_HSM; 112 lh->kuc_msgtype = HMT_ACTION_LIST; 113 lh->kuc_msglen = len; 114 115 hal = (struct hsm_action_list *)(lh + 1); 116 hal->hal_version = HAL_VERSION; 117 hal->hal_archive_id = 1; 118 hal->hal_flags = 0; 119 obd_uuid2fsname(hal->hal_fsname, obd->obd_name, MTI_NAME_MAXLEN); 120 121 /* mock up an action list */ 122 hal->hal_count = 2; 123 hai = hai_zero(hal); 124 hai->hai_action = HSMA_ARCHIVE; 125 hai->hai_fid.f_oid = 5; 126 hai->hai_len = sizeof(*hai); 127 hai = hai_next(hai); 128 hai->hai_action = HSMA_RESTORE; 129 hai->hai_fid.f_oid = 10; 130 hai->hai_len = sizeof(*hai); 131 132 /* This works for either broadcast or unicast to a single fd */ 133 if (fd == 0) { 134 rc = libcfs_kkuc_group_put(KUC_GRP_HSM, lh); 135 } else { 136 struct file *fp = fget(fd); 137 138 rc = libcfs_kkuc_msg_put(fp, lh); 139 fput(fp); 140 } 141 OBD_FREE(lh, len); 142 if (rc < 0) 143 RETURN(rc); 144 RETURN(count); 145} 146 147struct file_operations mdc_kuc_fops = { 148 .open = mdc_kuc_open, 149 .write = mdc_kuc_write, 150 .release = single_release, 151}; 152 153LPROC_SEQ_FOPS_WR_ONLY(mdc, ping); 154 155LPROC_SEQ_FOPS_RO_TYPE(mdc, uuid); 156LPROC_SEQ_FOPS_RO_TYPE(mdc, connect_flags); 157LPROC_SEQ_FOPS_RO_TYPE(mdc, blksize); 158LPROC_SEQ_FOPS_RO_TYPE(mdc, kbytestotal); 159LPROC_SEQ_FOPS_RO_TYPE(mdc, kbytesfree); 160LPROC_SEQ_FOPS_RO_TYPE(mdc, kbytesavail); 161LPROC_SEQ_FOPS_RO_TYPE(mdc, filestotal); 162LPROC_SEQ_FOPS_RO_TYPE(mdc, filesfree); 163LPROC_SEQ_FOPS_RO_TYPE(mdc, server_uuid); 164LPROC_SEQ_FOPS_RO_TYPE(mdc, conn_uuid); 165LPROC_SEQ_FOPS_RO_TYPE(mdc, timeouts); 166LPROC_SEQ_FOPS_RO_TYPE(mdc, state); 167 168static int mdc_obd_max_pages_per_rpc_seq_show(struct seq_file *m, void *v) 169{ 170 return lprocfs_obd_rd_max_pages_per_rpc(m, m->private); 171} 172LPROC_SEQ_FOPS_RO(mdc_obd_max_pages_per_rpc); 173 174LPROC_SEQ_FOPS_RW_TYPE(mdc, import); 175LPROC_SEQ_FOPS_RW_TYPE(mdc, pinger_recov); 176 177static struct lprocfs_vars lprocfs_mdc_obd_vars[] = { 178 { "uuid", &mdc_uuid_fops, 0, 0 }, 179 { "ping", &mdc_ping_fops, 0, 0222 }, 180 { "connect_flags", &mdc_connect_flags_fops, 0, 0 }, 181 { "blocksize", &mdc_blksize_fops, 0, 0 }, 182 { "kbytestotal", &mdc_kbytestotal_fops, 0, 0 }, 183 { "kbytesfree", &mdc_kbytesfree_fops, 0, 0 }, 184 { "kbytesavail", &mdc_kbytesavail_fops, 0, 0 }, 185 { "filestotal", &mdc_filestotal_fops, 0, 0 }, 186 { "filesfree", &mdc_filesfree_fops, 0, 0 }, 187 /*{ "filegroups", lprocfs_rd_filegroups, 0, 0 },*/ 188 { "mds_server_uuid", &mdc_server_uuid_fops, 0, 0 }, 189 { "mds_conn_uuid", &mdc_conn_uuid_fops, 0, 0 }, 190 /* 191 * FIXME: below proc entry is provided, but not in used, instead 192 * sbi->sb_md_brw_size is used, the per obd variable should be used 193 * when CMD is enabled, and dir pages are managed in MDC layer. 194 * Remember to enable proc write function. 195 */ 196 { "max_pages_per_rpc", &mdc_obd_max_pages_per_rpc_fops, 0, 0 }, 197 { "max_rpcs_in_flight", &mdc_max_rpcs_in_flight_fops, 0, 0 }, 198 { "timeouts", &mdc_timeouts_fops, 0, 0 }, 199 { "import", &mdc_import_fops, 0 }, 200 { "state", &mdc_state_fops, 0, 0 }, 201 { "hsm_nl", &mdc_kuc_fops, 0, 0200 }, 202 { "pinger_recov", &mdc_pinger_recov_fops, 0, 0 }, 203 { 0 } 204}; 205 206LPROC_SEQ_FOPS_RO_TYPE(mdc, numrefs); 207 208static struct lprocfs_vars lprocfs_mdc_module_vars[] = { 209 { "num_refs", &mdc_numrefs_fops, 0, 0 }, 210 { 0 } 211}; 212 213void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars) 214{ 215 lvars->module_vars = lprocfs_mdc_module_vars; 216 lvars->obd_vars = lprocfs_mdc_obd_vars; 217} 218#endif /* LPROCFS */ 219