*/
#define DEBUG_SUBSYSTEM S_CLASS
+#include <linux/obd_support.h>
+#include <linux/obd.h>
#include <linux/lprocfs_status.h>
+#include <linux/lustre_idl.h>
+#include <linux/lustre_net.h>
+#include <linux/obd_class.h>
+#include <linux/seq_file.h>
+#include "ptlrpc_internal.h"
-#ifndef LPROCFS
-struct lprocfs_vars lprocfs_obd_vars[] = { {0} };
-struct lprocfs_vars lprocfs_module_vars[] = { {0} };
-#else
-struct lprocfs_vars lprocfs_obd_vars[] = {
- { "uuid", lprocfs_rd_uuid, 0, 0},
- { 0 }
+
+struct ll_rpc_opcode {
+ __u32 opcode;
+ const char *opname;
+} ll_rpc_opcode_table[LUSTRE_MAX_OPCODES] = {
+ { OST_REPLY, "ost_reply" },
+ { OST_GETATTR, "ost_getattr" },
+ { OST_SETATTR, "ost_setattr" },
+ { OST_READ, "ost_read" },
+ { OST_WRITE, "ost_write" },
+ { OST_CREATE , "ost_create" },
+ { OST_DESTROY, "ost_destroy" },
+ { OST_GET_INFO, "ost_get_info" },
+ { OST_CONNECT, "ost_connect" },
+ { OST_DISCONNECT, "ost_disconnect" },
+ { OST_PUNCH, "ost_punch" },
+ { OST_OPEN, "ost_open" },
+ { OST_CLOSE, "ost_close" },
+ { OST_STATFS, "ost_statfs" },
+ { OST_SAN_READ, "ost_san_read" },
+ { OST_SAN_WRITE, "ost_san_write" },
+ { OST_SYNC, "ost_sync" },
+ { OST_SET_INFO, "ost_set_info" },
+ { OST_QUOTACHECK, "ost_quotacheck" },
+ { OST_QUOTACTL, "ost_quotactl" },
+ { MDS_GETATTR, "mds_getattr" },
+ { MDS_GETATTR_NAME, "mds_getattr_name" },
+ { MDS_CLOSE, "mds_close" },
+ { MDS_REINT, "mds_reint" },
+ { MDS_READPAGE, "mds_readpage" },
+ { MDS_CONNECT, "mds_connect" },
+ { MDS_DISCONNECT, "mds_disconnect" },
+ { MDS_GETSTATUS, "mds_getstatus" },
+ { MDS_STATFS, "mds_statfs" },
+ { MDS_PIN, "mds_pin" },
+ { MDS_UNPIN, "mds_unpin" },
+ { MDS_SYNC, "mds_sync" },
+ { MDS_DONE_WRITING, "mds_done_writing" },
+ { MDS_SET_INFO, "mds_set_info" },
+ { MDS_QUOTACHECK, "mds_quotacheck" },
+ { MDS_QUOTACTL, "mds_quotactl" },
+ { LDLM_ENQUEUE, "ldlm_enqueue" },
+ { LDLM_CONVERT, "ldlm_convert" },
+ { LDLM_CANCEL, "ldlm_cancel" },
+ { LDLM_BL_CALLBACK, "ldlm_bl_callback" },
+ { LDLM_CP_CALLBACK, "ldlm_cp_callback" },
+ { LDLM_GL_CALLBACK, "ldlm_gl_callback" },
+ { PTLBD_QUERY, "ptlbd_query" },
+ { PTLBD_READ, "ptlbd_read" },
+ { PTLBD_WRITE, "ptlbd_write" },
+ { PTLBD_FLUSH, "ptlbd_flush" },
+ { PTLBD_CONNECT, "ptlbd_connect" },
+ { PTLBD_DISCONNECT, "ptlbd_disconnect" },
+ { OBD_PING, "obd_ping" },
+ { OBD_LOG_CANCEL, "llog_origin_handle_cancel"},
};
-struct lprocfs_vars lprocfs_module_vars[] = {
- { "num_refs", lprocfs_rd_numrefs, 0, 0},
- { 0 }
+const char* ll_opcode2str(__u32 opcode)
+{
+ /* When one of the assertions below fail, chances are that:
+ * 1) A new opcode was added in lustre_idl.h, but was
+ * is missing from the table above.
+ * or 2) The opcode space was renumbered or rearranged,
+ * and the opcode_offset() function in
+ * ptlrpc_internals.h needs to be modified.
+ */
+ __u32 offset = opcode_offset(opcode);
+ LASSERT(offset < LUSTRE_MAX_OPCODES);
+ LASSERT(ll_rpc_opcode_table[offset].opcode == opcode);
+ return ll_rpc_opcode_table[offset].opname;
+}
+
+#ifdef LPROCFS
+void ptlrpc_lprocfs_register(struct proc_dir_entry *root, char *dir,
+ char *name, struct proc_dir_entry **procroot_ret,
+ struct lprocfs_stats **stats_ret)
+{
+ struct proc_dir_entry *svc_procroot;
+ struct lprocfs_stats *svc_stats;
+ int i, rc;
+ unsigned int svc_counter_config = LPROCFS_CNTR_AVGMINMAX |
+ LPROCFS_CNTR_STDDEV;
+
+ LASSERT(*procroot_ret == NULL);
+ LASSERT(*stats_ret == NULL);
+
+ svc_stats = lprocfs_alloc_stats(PTLRPC_LAST_CNTR + LUSTRE_MAX_OPCODES);
+ if (svc_stats == NULL)
+ return;
+
+ if (dir) {
+ svc_procroot = lprocfs_register(dir, root, NULL, NULL);
+ if (IS_ERR(svc_procroot)) {
+ lprocfs_free_stats(svc_stats);
+ return;
+ }
+ } else {
+ svc_procroot = root;
+ }
+
+ lprocfs_counter_init(svc_stats, PTLRPC_REQWAIT_CNTR,
+ svc_counter_config, "req_waittime", "usec");
+ lprocfs_counter_init(svc_stats, PTLRPC_REQQDEPTH_CNTR,
+ svc_counter_config, "req_qdepth", "reqs");
+ lprocfs_counter_init(svc_stats, PTLRPC_REQACTIVE_CNTR,
+ svc_counter_config, "req_active", "reqs");
+ lprocfs_counter_init(svc_stats, PTLRPC_REQBUF_AVAIL_CNTR,
+ svc_counter_config, "reqbuf_avail", "bufs");
+ for (i = 0; i < LUSTRE_MAX_OPCODES; i++) {
+ __u32 opcode = ll_rpc_opcode_table[i].opcode;
+ lprocfs_counter_init(svc_stats, PTLRPC_LAST_CNTR + i,
+ svc_counter_config, ll_opcode2str(opcode),
+ "usec");
+ }
+
+ rc = lprocfs_register_stats(svc_procroot, name, svc_stats);
+ if (rc < 0) {
+ if (dir)
+ lprocfs_remove(svc_procroot);
+ lprocfs_free_stats(svc_stats);
+ } else {
+ if (dir)
+ *procroot_ret = svc_procroot;
+ *stats_ret = svc_stats;
+ }
+}
+
+static int
+ptlrpc_lprocfs_read_req_history_len(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct ptlrpc_service *svc = data;
+
+ *eof = 1;
+ return snprintf(page, count, "%d\n", svc->srv_n_history_rqbds);
+}
+
+static int
+ptlrpc_lprocfs_read_req_history_max(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct ptlrpc_service *svc = data;
+
+ *eof = 1;
+ return snprintf(page, count, "%d\n", svc->srv_max_history_rqbds);
+}
+
+static int
+ptlrpc_lprocfs_write_req_history_max(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct ptlrpc_service *svc = data;
+ int bufpages;
+ unsigned long flags;
+ int val;
+ int rc = lprocfs_write_helper(buffer, count, &val);
+
+ if (rc < 0)
+ return rc;
+
+ if (val < 0)
+ return -ERANGE;
+
+ /* This sanity check is more of an insanity check; we can still
+ * hose a kernel by allowing the request history to grow too
+ * far. */
+ bufpages = (svc->srv_buf_size + PAGE_SIZE - 1)/PAGE_SIZE;
+ if (val > num_physpages/(2*bufpages))
+ return -ERANGE;
+
+ spin_lock_irqsave(&svc->srv_lock, flags);
+ svc->srv_max_history_rqbds = val;
+ spin_unlock_irqrestore(&svc->srv_lock, flags);
+
+ return count;
+}
+
+struct ptlrpc_srh_iterator {
+ __u64 srhi_seq;
+ struct ptlrpc_request *srhi_req;
};
+int
+ptlrpc_lprocfs_svc_req_history_seek(struct ptlrpc_service *svc,
+ struct ptlrpc_srh_iterator *srhi,
+ __u64 seq)
+{
+ struct list_head *e;
+ struct ptlrpc_request *req;
+
+ if (srhi->srhi_req != NULL &&
+ srhi->srhi_seq > svc->srv_request_max_cull_seq &&
+ srhi->srhi_seq <= seq) {
+ /* If srhi_req was set previously, hasn't been culled and
+ * we're searching for a seq on or after it (i.e. more
+ * recent), search from it onwards.
+ * Since the service history is LRU (i.e. culled reqs will
+ * be near the head), we shouldn't have to do long
+ * re-scans */
+ LASSERT (srhi->srhi_seq == srhi->srhi_req->rq_history_seq);
+ LASSERT (!list_empty(&svc->srv_request_history));
+ e = &srhi->srhi_req->rq_history_list;
+ } else {
+ /* search from start */
+ e = svc->srv_request_history.next;
+ }
+
+ while (e != &svc->srv_request_history) {
+ req = list_entry(e, struct ptlrpc_request, rq_history_list);
+
+ if (req->rq_history_seq >= seq) {
+ srhi->srhi_seq = req->rq_history_seq;
+ srhi->srhi_req = req;
+ return 0;
+ }
+ e = e->next;
+ }
+
+ return -ENOENT;
+}
+
+static void *
+ptlrpc_lprocfs_svc_req_history_start(struct seq_file *s, loff_t *pos)
+{
+ struct ptlrpc_service *svc = s->private;
+ struct ptlrpc_srh_iterator *srhi;
+ unsigned long flags;
+ int rc;
+
+ OBD_ALLOC(srhi, sizeof(*srhi));
+ if (srhi == NULL)
+ return NULL;
+
+ srhi->srhi_seq = 0;
+ srhi->srhi_req = NULL;
+
+ spin_lock_irqsave(&svc->srv_lock, flags);
+ rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, *pos);
+ spin_unlock_irqrestore(&svc->srv_lock, flags);
+
+ if (rc == 0) {
+ *pos = srhi->srhi_seq;
+ return srhi;
+ }
+
+ OBD_FREE(srhi, sizeof(*srhi));
+ return NULL;
+}
+
+static void
+ptlrpc_lprocfs_svc_req_history_stop(struct seq_file *s, void *iter)
+{
+ struct ptlrpc_srh_iterator *srhi = iter;
+
+ if (srhi != NULL)
+ OBD_FREE(srhi, sizeof(*srhi));
+}
+
+static void *
+ptlrpc_lprocfs_svc_req_history_next(struct seq_file *s,
+ void *iter, loff_t *pos)
+{
+ struct ptlrpc_service *svc = s->private;
+ struct ptlrpc_srh_iterator *srhi = iter;
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(&svc->srv_lock, flags);
+ rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, *pos + 1);
+ spin_unlock_irqrestore(&svc->srv_lock, flags);
+
+ if (rc != 0) {
+ OBD_FREE(srhi, sizeof(*srhi));
+ return NULL;
+ }
+
+ *pos = srhi->srhi_seq;
+ return srhi;
+}
+
+static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
+{
+ struct ptlrpc_service *svc = s->private;
+ struct ptlrpc_srh_iterator *srhi = iter;
+ struct ptlrpc_request *req;
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(&svc->srv_lock, flags);
+
+ rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, srhi->srhi_seq);
+
+ if (rc == 0) {
+ req = srhi->srhi_req;
+
+ /* Print common req fields.
+ * CAVEAT EMPTOR: we're racing with the service handler
+ * here. The request could contain any old crap, so you
+ * must be just as careful as the service's request
+ * parser. Currently I only print stuff here I know is OK
+ * to look at coz it was set up in request_in_callback()!!! */
+ seq_printf(s, LPD64":%s:"LPD64":%d:%s ",
+ req->rq_history_seq, libcfs_id2str(req->rq_peer),
+ req->rq_xid, req->rq_reqlen,ptlrpc_rqphase2str(req));
+
+ if (svc->srv_request_history_print_fn == NULL)
+ seq_printf(s, "\n");
+ else
+ svc->srv_request_history_print_fn(s, srhi->srhi_req);
+ }
+
+ spin_unlock_irqrestore(&svc->srv_lock, flags);
+
+ return rc;
+}
+
+static int
+ptlrpc_lprocfs_svc_req_history_open(struct inode *inode, struct file *file)
+{
+ static struct seq_operations sops = {
+ .start = ptlrpc_lprocfs_svc_req_history_start,
+ .stop = ptlrpc_lprocfs_svc_req_history_stop,
+ .next = ptlrpc_lprocfs_svc_req_history_next,
+ .show = ptlrpc_lprocfs_svc_req_history_show,
+ };
+ struct proc_dir_entry *dp = PDE(inode);
+ struct seq_file *seqf;
+ int rc;
+
+ rc = seq_open(file, &sops);
+
+ if (rc == 0) {
+ seqf = file->private_data;
+ seqf->private = dp->data;
+ }
+
+ return rc;
+}
+
+void ptlrpc_lprocfs_register_service(struct proc_dir_entry *entry,
+ struct ptlrpc_service *svc)
+{
+ struct lprocfs_vars lproc_vars[] = {
+ {.name = "req_buffer_history_len",
+ .write_fptr = NULL,
+ .read_fptr = ptlrpc_lprocfs_read_req_history_len,
+ .data = svc},
+ {.name = "req_buffer_history_max",
+ .write_fptr = ptlrpc_lprocfs_write_req_history_max,
+ .read_fptr = ptlrpc_lprocfs_read_req_history_max,
+ .data = svc},
+ {NULL}
+ };
+ static struct file_operations req_history_fops = {
+ .owner = THIS_MODULE,
+ .open = ptlrpc_lprocfs_svc_req_history_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+ };
+ struct proc_dir_entry *req_history;
+
+ ptlrpc_lprocfs_register(entry, svc->srv_name,
+ "stats", &svc->srv_procroot,
+ &svc->srv_stats);
+
+ if (svc->srv_procroot == NULL)
+ return;
+
+ lprocfs_add_vars(svc->srv_procroot, lproc_vars, NULL);
+
+ req_history = create_proc_entry("req_history", 0400,
+ svc->srv_procroot);
+ if (req_history != NULL) {
+ req_history->data = svc;
+ req_history->proc_fops = &req_history_fops;
+ }
+}
+
+void ptlrpc_lprocfs_register_obd(struct obd_device *obddev)
+{
+ ptlrpc_lprocfs_register(obddev->obd_proc_entry, NULL, "stats",
+ &obddev->obd_svc_procroot,
+ &obddev->obd_svc_stats);
+}
+EXPORT_SYMBOL(ptlrpc_lprocfs_register_obd);
+
+void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req)
+{
+ struct lprocfs_stats *svc_stats;
+ int opc = opcode_offset(req->rq_reqmsg->opc);
+
+ svc_stats = req->rq_import->imp_obd->obd_svc_stats;
+ if (svc_stats == NULL || opc <= 0)
+ return;
+ LASSERT(opc < LUSTRE_MAX_OPCODES);
+ lprocfs_counter_add(svc_stats, opc + PTLRPC_LAST_CNTR, 0);
+}
+
+void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc)
+{
+ if (svc->srv_procroot != NULL) {
+ lprocfs_remove(svc->srv_procroot);
+ svc->srv_procroot = NULL;
+ }
+ if (svc->srv_stats) {
+ lprocfs_free_stats(svc->srv_stats);
+ svc->srv_stats = NULL;
+ }
+}
+
+void ptlrpc_lprocfs_unregister_obd(struct obd_device *obd)
+{
+ if (obd->obd_svc_procroot) {
+ lprocfs_remove(obd->obd_svc_procroot);
+ obd->obd_svc_procroot = NULL;
+ }
+ if (obd->obd_svc_stats) {
+ lprocfs_free_stats(obd->obd_svc_stats);
+ obd->obd_svc_stats = NULL;
+ }
+}
+EXPORT_SYMBOL(ptlrpc_lprocfs_unregister_obd);
+
+
+int lprocfs_wr_evict_client(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct obd_device *obd = data;
+ struct obd_export *doomed_exp = NULL;
+ struct obd_uuid doomed;
+ struct list_head *p;
+ char tmpbuf[sizeof(doomed)];
+
+ sscanf(buffer, "%40s", tmpbuf);
+ obd_str2uuid(&doomed, tmpbuf);
+
+ spin_lock(&obd->obd_dev_lock);
+ list_for_each(p, &obd->obd_exports) {
+ doomed_exp = list_entry(p, struct obd_export, exp_obd_chain);
+ if (obd_uuid_equals(&doomed, &doomed_exp->exp_client_uuid)) {
+ class_export_get(doomed_exp);
+ break;
+ }
+ doomed_exp = NULL;
+ }
+ spin_unlock(&obd->obd_dev_lock);
+
+ if (doomed_exp == NULL) {
+ CERROR("can't disconnect %s: no export found\n", doomed.uuid);
+ } else {
+ CERROR("evicting %s at adminstrative request\n", doomed.uuid);
+ class_fail_export(doomed_exp);
+ class_export_put(doomed_exp);
+ }
+ return count;
+}
+EXPORT_SYMBOL(lprocfs_wr_evict_client);
+
+int lprocfs_wr_ping(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct obd_device *obd = data;
+ struct ptlrpc_request *req;
+ int rc;
+ ENTRY;
+
+ req = ptlrpc_prep_req(obd->u.cli.cl_import, OBD_PING, 0, NULL, NULL);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ req->rq_replen = lustre_msg_size(0, NULL);
+ req->rq_send_state = LUSTRE_IMP_FULL;
+ req->rq_no_resend = 1;
+
+ rc = ptlrpc_queue_wait(req);
+
+ ptlrpc_req_finished(req);
+ if (rc >= 0)
+ RETURN(count);
+ RETURN(rc);
+}
+EXPORT_SYMBOL(lprocfs_wr_ping);
+
#endif /* LPROCFS */
-LPROCFS_INIT_VARS(lprocfs_module_vars, lprocfs_obd_vars)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff