Whamcloud - gitweb
LU-56 ptlrpc: svc thread starting/stopping cleanup
[fs/lustre-release.git] / lustre / ptlrpc / ptlrpc_internal.h
index cc1bf80..ff5be4e 100644 (file)
@@ -1,26 +1,37 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
  *
- *  Copyright (C) 2003 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
- *   This file is part of the Lustre file system, http://www.lustre.org
- *   Lustre is a trademark of Cluster File Systems, Inc.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
  *
- *   You may have signed or agreed to another license before downloading
- *   this software.  If so, you are bound by the terms and conditions
- *   of that agreement, and the following does not apply to you.  See the
- *   LICENSE file included with this distribution for more information.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
  *
- *   If you did not agree to a different license, then this copy of Lustre
- *   is open source software; you can redistribute it and/or modify it
- *   under the terms of version 2 of the GNU General Public License as
- *   published by the Free Software Foundation.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  *
- *   In either case, Lustre is distributed in the hope that it will be
- *   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- *   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   license text for more details.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
  *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
  */
 
 /* Intramodule declarations for ptlrpc. */
@@ -36,6 +47,18 @@ struct ldlm_res_id;
 struct ptlrpc_request_set;
 extern int test_req_buffer_pressure;
 
+int ptlrpc_start_thread(struct ptlrpc_service_part *svcpt, int wait);
+/* ptlrpcd.c */
+int ptlrpcd_start(int index, int max, const char *name, struct ptlrpcd_ctl *pc);
+
+/* client.c */
+struct ptlrpc_bulk_desc *new_bulk(int npages, int type, int portal);
+void ptlrpc_init_xid(void);
+
+/* events.c */
+int ptlrpc_init_portals(void);
+void ptlrpc_exit_portals(void);
+
 void ptlrpc_request_handle_notconn(struct ptlrpc_request *);
 void lustre_assert_wire_constants(void);
 int ptlrpc_import_in_recovery(struct obd_import *imp);
@@ -47,12 +70,11 @@ void ptlrpc_initiate_recovery(struct obd_import *imp);
 int lustre_unpack_req_ptlrpc_body(struct ptlrpc_request *req, int offset);
 int lustre_unpack_rep_ptlrpc_body(struct ptlrpc_request *req, int offset);
 
-
 #ifdef LPROCFS
 void ptlrpc_lprocfs_register_service(struct proc_dir_entry *proc_entry,
                                      struct ptlrpc_service *svc);
 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc);
-void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req);
+void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req, long amount);
 void ptlrpc_lprocfs_do_request_stat (struct ptlrpc_request *req,
                                      long q_usec, long work_usec);
 #else
@@ -63,112 +85,24 @@ void ptlrpc_lprocfs_do_request_stat (struct ptlrpc_request *req,
 #endif /* LPROCFS */
 
 /* recovd_thread.c */
-int llog_init_commit_master(void);
-int llog_cleanup_commit_master(int force);
-
-static inline int opcode_offset(__u32 opc) {
-        if (opc < OST_LAST_OPC) {
-                 /* OST opcode */
-                return (opc - OST_FIRST_OPC);
-        } else if (opc < MDS_LAST_OPC) {
-                /* MDS opcode */
-                return (opc - MDS_FIRST_OPC +
-                        (OST_LAST_OPC - OST_FIRST_OPC));
-        } else if (opc < LDLM_LAST_OPC) {
-                /* LDLM Opcode */
-                return (opc - LDLM_FIRST_OPC +
-                        (MDS_LAST_OPC - MDS_FIRST_OPC) +
-                        (OST_LAST_OPC - OST_FIRST_OPC));
-        } else if (opc < MGS_LAST_OPC) {
-                /* MGS Opcode */
-                return (opc - MGS_FIRST_OPC +
-                        (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
-                        (MDS_LAST_OPC - MDS_FIRST_OPC) +
-                        (OST_LAST_OPC - OST_FIRST_OPC));
-        } else if (opc < OBD_LAST_OPC) {
-                /* OBD Ping */
-                return (opc - OBD_FIRST_OPC +
-                        (MGS_LAST_OPC - MGS_FIRST_OPC) +
-                        (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
-                        (MDS_LAST_OPC - MDS_FIRST_OPC) +
-                        (OST_LAST_OPC - OST_FIRST_OPC));
-        } else if (opc < LLOG_LAST_OPC) {
-                /* LLOG opcode */
-                return (opc - LLOG_FIRST_OPC +
-                        (OBD_LAST_OPC - OBD_FIRST_OPC) +
-                        (MGS_LAST_OPC - MGS_FIRST_OPC) +
-                        (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
-                        (MDS_LAST_OPC - MDS_FIRST_OPC) +
-                        (OST_LAST_OPC - OST_FIRST_OPC));
-        } else if (opc < FLD_LAST_OPC) {
-                /* FLD opcode */
-                return (opc - FLD_FIRST_OPC +
-                        (LLOG_LAST_OPC - LLOG_FIRST_OPC) +
-                        (OBD_LAST_OPC - OBD_FIRST_OPC) +
-                        (MGS_LAST_OPC - MGS_FIRST_OPC) +
-                        (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
-                        (MDS_LAST_OPC - MDS_FIRST_OPC) +
-                        (OST_LAST_OPC - OST_FIRST_OPC));
-        } else if (opc < SEQ_LAST_OPC) {
-                /* SEQ opcode */
-                return (opc - SEQ_FIRST_OPC +
-                        (FLD_LAST_OPC - FLD_FIRST_OPC) +
-                        (LLOG_LAST_OPC - LLOG_FIRST_OPC) +
-                        (OBD_LAST_OPC - OBD_FIRST_OPC) +
-                        (MGS_LAST_OPC - MGS_FIRST_OPC) +
-                        (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
-                        (MDS_LAST_OPC - MDS_FIRST_OPC) +
-                        (OST_LAST_OPC - OST_FIRST_OPC));
-        } else if (opc < SEC_LAST_OPC) {
-                /* SEC opcode */
-                return (opc - SEC_FIRST_OPC +
-                        (SEQ_LAST_OPC - SEQ_FIRST_OPC) +
-                        (FLD_LAST_OPC - FLD_FIRST_OPC) +
-                        (LLOG_LAST_OPC - LLOG_FIRST_OPC) +
-                        (OBD_LAST_OPC - OBD_FIRST_OPC) +
-                        (MGS_LAST_OPC - MGS_FIRST_OPC) +
-                        (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
-                        (MDS_LAST_OPC - MDS_FIRST_OPC) +
-                        (OST_LAST_OPC - OST_FIRST_OPC));
-        } else {
-                /* Unknown Opcode */
-                return -1;
-        }
-}
 
-#define LUSTRE_MAX_OPCODES ((LDLM_LAST_OPC - LDLM_FIRST_OPC)   + \
-                            (MDS_LAST_OPC - MDS_FIRST_OPC)     + \
-                            (OST_LAST_OPC - OST_FIRST_OPC)     + \
-                            (OBD_LAST_OPC - OBD_FIRST_OPC)     + \
-                            (FLD_LAST_OPC - FLD_FIRST_OPC)     + \
-                            (SEQ_LAST_OPC - SEQ_FIRST_OPC)     + \
-                            (MGS_LAST_OPC - MGS_FIRST_OPC)     + \
-                            (LLOG_LAST_OPC - LLOG_FIRST_OPC)   + \
-                            (SEC_LAST_OPC - SEC_FIRST_OPC))
-enum {
-        PTLRPC_REQWAIT_CNTR = 0,
-        PTLRPC_REQQDEPTH_CNTR,
-        PTLRPC_REQACTIVE_CNTR,
-        PTLRPC_REQBUF_AVAIL_CNTR,
-        PTLRPC_LAST_CNTR
-};
-
-int ptlrpc_expire_one_request(struct ptlrpc_request *req);
+int ptlrpc_expire_one_request(struct ptlrpc_request *req, int async_unlink);
 
 /* pers.c */
 void ptlrpc_fill_bulk_md(lnet_md_t *md, struct ptlrpc_bulk_desc *desc);
-void ptlrpc_add_bulk_page(struct ptlrpc_bulk_desc *desc, cfs_page_t *page, 
+void ptlrpc_add_bulk_page(struct ptlrpc_bulk_desc *desc, cfs_page_t *page,
                           int pageoffset, int len);
-void ptl_rpc_wipe_bulk_pages(struct ptlrpc_bulk_desc *desc);
 
 /* pack_generic.c */
-struct ptlrpc_reply_state *lustre_get_emerg_rs(struct ptlrpc_service *svc);
+struct ptlrpc_reply_state *
+lustre_get_emerg_rs(struct ptlrpc_service_part *svcpt);
 void lustre_put_emerg_rs(struct ptlrpc_reply_state *rs);
 
 /* pinger.c */
 int ptlrpc_start_pinger(void);
 int ptlrpc_stop_pinger(void);
 void ptlrpc_pinger_sending_on_import(struct obd_import *imp);
+void ptlrpc_pinger_commit_expected(struct obd_import *imp);
 void ptlrpc_pinger_wake_up(void);
 void ptlrpc_ping_import_soon(struct obd_import *imp);
 #ifdef __KERNEL__
@@ -190,18 +124,56 @@ int  sptlrpc_enc_pool_init(void);
 void sptlrpc_enc_pool_fini(void);
 int sptlrpc_proc_read_enc_pool(char *page, char **start, off_t off, int count,
                                int *eof, void *data);
-const char * sptlrpc_bulk_csum_alg2name(__u32 csum_alg);
 
 /* sec_lproc.c */
 int  sptlrpc_lproc_init(void);
 void sptlrpc_lproc_fini(void);
 
 /* sec_gc.c */
-int sptlrpc_gc_start_thread(void);
-void sptlrpc_gc_stop_thread(void);
+int sptlrpc_gc_init(void);
+void sptlrpc_gc_fini(void);
+
+/* sec_config.c */
+void sptlrpc_conf_choose_flavor(enum lustre_sec_part from,
+                                enum lustre_sec_part to,
+                                struct obd_uuid *target,
+                                lnet_nid_t nid,
+                                struct sptlrpc_flavor *sf);
+int  sptlrpc_conf_init(void);
+void sptlrpc_conf_fini(void);
 
 /* sec.c */
-int  __init sptlrpc_init(void);
-void __exit sptlrpc_fini(void);
+int  sptlrpc_init(void);
+void sptlrpc_fini(void);
+
+/* recov_thread.c */
+int llog_recov_init(void);
+void llog_recov_fini(void);
 
+static inline int ll_rpc_recoverable_error(int rc)
+{
+        return (rc == -ENOTCONN || rc == -ENODEV);
+}
+
+#ifdef HAVE_SERVER_SUPPORT
+/* target.c */
+int lut_mod_init(void);
+void lut_mod_exit(void);
+#else
+static inline int lut_mod_init(void)
+{
+       return 0;
+}
+
+static inline void lut_mod_exit(void)
+{
+       return;
+}
+#endif
+
+static inline void ptlrpc_reqset_put(struct ptlrpc_request_set *set)
+{
+        if (cfs_atomic_dec_and_test(&set->set_refcount))
+                OBD_FREE_PTR(set);
+}
 #endif /* PTLRPC_INTERNAL_H */