lproc_mdc.c revision 73bb1da692d0dc3e93b9c9e29084d6a5dcbc37a6
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/version.h> 39#include <linux/vfs.h> 40#include <obd_class.h> 41#include <lprocfs_status.h> 42 43#ifdef LPROCFS 44 45static int mdc_max_rpcs_in_flight_seq_show(struct seq_file *m, void *v) 46{ 47 struct obd_device *dev = m->private; 48 struct client_obd *cli = &dev->u.cli; 49 int rc; 50 51 client_obd_list_lock(&cli->cl_loi_list_lock); 52 rc = seq_printf(m, "%u\n", cli->cl_max_rpcs_in_flight); 53 client_obd_list_unlock(&cli->cl_loi_list_lock); 54 return rc; 55} 56 57static ssize_t mdc_max_rpcs_in_flight_seq_write(struct file *file, 58 const char *buffer, 59 size_t count, 60 loff_t *off) 61{ 62 struct obd_device *dev = ((struct seq_file *)file->private_data)->private; 63 struct client_obd *cli = &dev->u.cli; 64 int val, rc; 65 66 rc = lprocfs_write_helper(buffer, count, &val); 67 if (rc) 68 return rc; 69 70 if (val < 1 || val > MDC_MAX_RIF_MAX) 71 return -ERANGE; 72 73 client_obd_list_lock(&cli->cl_loi_list_lock); 74 cli->cl_max_rpcs_in_flight = val; 75 client_obd_list_unlock(&cli->cl_loi_list_lock); 76 77 return count; 78} 79LPROC_SEQ_FOPS(mdc_max_rpcs_in_flight); 80 81/* temporary for testing */ 82static ssize_t mdc_wr_kuc(struct file *file, const char *buffer, 83 size_t count, loff_t *off) 84{ 85 struct obd_device *obd = ((struct seq_file *)file->private_data)->private; 86 struct kuc_hdr *lh; 87 struct hsm_action_list *hal; 88 struct hsm_action_item *hai; 89 int len; 90 int fd, rc; 91 ENTRY; 92 93 rc = lprocfs_write_helper(buffer, count, &fd); 94 if (rc) 95 RETURN(rc); 96 97 if (fd < 0) 98 RETURN(-ERANGE); 99 CWARN("message to fd %d\n", fd); 100 101 len = sizeof(*lh) + sizeof(*hal) + MTI_NAME_MAXLEN + 102 /* for mockup below */ 2 * cfs_size_round(sizeof(*hai)); 103 104 OBD_ALLOC(lh, len); 105 106 lh->kuc_magic = KUC_MAGIC; 107 lh->kuc_transport = KUC_TRANSPORT_HSM; 108 lh->kuc_msgtype = HMT_ACTION_LIST; 109 lh->kuc_msglen = len; 110 111 hal = (struct hsm_action_list *)(lh + 1); 112 hal->hal_version = HAL_VERSION; 113 hal->hal_archive_id = 1; 114 hal->hal_flags = 0; 115 obd_uuid2fsname(hal->hal_fsname, obd->obd_name, MTI_NAME_MAXLEN); 116 117 /* mock up an action list */ 118 hal->hal_count = 2; 119 hai = hai_zero(hal); 120 hai->hai_action = HSMA_ARCHIVE; 121 hai->hai_fid.f_oid = 5; 122 hai->hai_len = sizeof(*hai); 123 hai = hai_next(hai); 124 hai->hai_action = HSMA_RESTORE; 125 hai->hai_fid.f_oid = 10; 126 hai->hai_len = sizeof(*hai); 127 128 /* This works for either broadcast or unicast to a single fd */ 129 if (fd == 0) { 130 rc = libcfs_kkuc_group_put(KUC_GRP_HSM, lh); 131 } else { 132 struct file *fp = fget(fd); 133 134 rc = libcfs_kkuc_msg_put(fp, lh); 135 fput(fp); 136 } 137 OBD_FREE(lh, len); 138 if (rc < 0) 139 RETURN(rc); 140 RETURN(count); 141} 142struct file_operations mdc_kuc_fops = { 143 .write = mdc_wr_kuc, 144}; 145 146LPROC_SEQ_FOPS_WR_ONLY(mdc, ping); 147 148LPROC_SEQ_FOPS_RO_TYPE(mdc, uuid); 149LPROC_SEQ_FOPS_RO_TYPE(mdc, connect_flags); 150LPROC_SEQ_FOPS_RO_TYPE(mdc, blksize); 151LPROC_SEQ_FOPS_RO_TYPE(mdc, kbytestotal); 152LPROC_SEQ_FOPS_RO_TYPE(mdc, kbytesfree); 153LPROC_SEQ_FOPS_RO_TYPE(mdc, kbytesavail); 154LPROC_SEQ_FOPS_RO_TYPE(mdc, filestotal); 155LPROC_SEQ_FOPS_RO_TYPE(mdc, filesfree); 156LPROC_SEQ_FOPS_RO_TYPE(mdc, server_uuid); 157LPROC_SEQ_FOPS_RO_TYPE(mdc, conn_uuid); 158LPROC_SEQ_FOPS_RO_TYPE(mdc, timeouts); 159LPROC_SEQ_FOPS_RO_TYPE(mdc, state); 160 161static int mdc_obd_max_pages_per_rpc_seq_show(struct seq_file *m, void *v) 162{ 163 return lprocfs_obd_rd_max_pages_per_rpc(m, m->private); 164} 165LPROC_SEQ_FOPS_RO(mdc_obd_max_pages_per_rpc); 166 167LPROC_SEQ_FOPS_RW_TYPE(mdc, import); 168LPROC_SEQ_FOPS_RW_TYPE(mdc, pinger_recov); 169 170static struct lprocfs_vars lprocfs_mdc_obd_vars[] = { 171 { "uuid", &mdc_uuid_fops, 0, 0 }, 172 { "ping", &mdc_ping_fops, 0, 0222 }, 173 { "connect_flags", &mdc_connect_flags_fops, 0, 0 }, 174 { "blocksize", &mdc_blksize_fops, 0, 0 }, 175 { "kbytestotal", &mdc_kbytestotal_fops, 0, 0 }, 176 { "kbytesfree", &mdc_kbytesfree_fops, 0, 0 }, 177 { "kbytesavail", &mdc_kbytesavail_fops, 0, 0 }, 178 { "filestotal", &mdc_filestotal_fops, 0, 0 }, 179 { "filesfree", &mdc_filesfree_fops, 0, 0 }, 180 /*{ "filegroups", lprocfs_rd_filegroups, 0, 0 },*/ 181 { "mds_server_uuid", &mdc_server_uuid_fops, 0, 0 }, 182 { "mds_conn_uuid", &mdc_conn_uuid_fops, 0, 0 }, 183 /* 184 * FIXME: below proc entry is provided, but not in used, instead 185 * sbi->sb_md_brw_size is used, the per obd variable should be used 186 * when CMD is enabled, and dir pages are managed in MDC layer. 187 * Remember to enable proc write function. 188 */ 189 { "max_pages_per_rpc", &mdc_obd_max_pages_per_rpc_fops, 0, 0 }, 190 { "max_rpcs_in_flight", &mdc_max_rpcs_in_flight_fops, 0, 0 }, 191 { "timeouts", &mdc_timeouts_fops, 0, 0 }, 192 { "import", &mdc_import_fops, 0 }, 193 { "state", &mdc_state_fops, 0, 0 }, 194 { "hsm_nl", &mdc_kuc_fops, 0, 0200 }, 195 { "pinger_recov", &mdc_pinger_recov_fops, 0, 0 }, 196 { 0 } 197}; 198 199LPROC_SEQ_FOPS_RO_TYPE(mdc, numrefs); 200 201static struct lprocfs_vars lprocfs_mdc_module_vars[] = { 202 { "num_refs", &mdc_numrefs_fops, 0, 0 }, 203 { 0 } 204}; 205 206void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars) 207{ 208 lvars->module_vars = lprocfs_mdc_module_vars; 209 lvars->obd_vars = lprocfs_mdc_obd_vars; 210} 211#endif /* LPROCFS */ 212