--- /dev/null
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * 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.
+ *
+ * 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).
+ *
+ * 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
+ *
+ * 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, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ */
+
+/* Intramodule declarations for ptlrpc. */
+
+#ifndef PTLRPC_INTERNAL_H
+#define PTLRPC_INTERNAL_H
+
+#include "../ldlm/ldlm_internal.h"
+
+struct ldlm_namespace;
+struct obd_import;
+struct ldlm_res_id;
+struct ptlrpc_request_set;
+extern int test_req_buffer_pressure;
+extern struct mutex ptlrpc_all_services_mutex;
+
+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 *ptlrpc_new_bulk(unsigned npages, unsigned max_brw,
+ unsigned type, unsigned portal);
+int ptlrpc_request_cache_init(void);
+void ptlrpc_request_cache_fini(void);
+struct ptlrpc_request *ptlrpc_request_cache_alloc(gfp_t flags);
+void ptlrpc_request_cache_free(struct ptlrpc_request *req);
+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);
+int ptlrpc_set_import_discon(struct obd_import *imp, __u32 conn_cnt);
+void ptlrpc_handle_failed_import(struct obd_import *imp);
+int ptlrpc_replay_next(struct obd_import *imp, int *inflight);
+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);
+
+#if defined(CONFIG_PROC_FS)
+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, long amount);
+void ptlrpc_lprocfs_do_request_stat(struct ptlrpc_request *req,
+ long q_usec, long work_usec);
+#else
+#define ptlrpc_lprocfs_register_service(params...) do {} while (0)
+#define ptlrpc_lprocfs_unregister_service(params...) do {} while (0)
+#define ptlrpc_lprocfs_rpc_sent(params...) do {} while (0)
+#define ptlrpc_lprocfs_do_request_stat(params...) do {} while (0)
+#endif /* CONFIG_PROC_FS */
+
+/* NRS */
+
+/**
+ * NRS core object.
+ *
+ * Holds NRS core fields.
+ */
+struct nrs_core {
+ /**
+ * Protects nrs_core::nrs_policies, serializes external policy
+ * registration/unregistration, and NRS core lprocfs operations.
+ */
+ struct mutex nrs_mutex;
+ /* XXX: This is just for liblustre. Remove the #if defined directive
+ * when the * "cfs_" prefix is dropped from cfs_list_head. */
+ /**
+ * List of all policy descriptors registered with NRS core; protected
+ * by nrs_core::nrs_mutex.
+ */
+ struct list_head nrs_policies;
+
+};
+
+int ptlrpc_service_nrs_setup(struct ptlrpc_service *svc);
+void ptlrpc_service_nrs_cleanup(struct ptlrpc_service *svc);
+
+void ptlrpc_nrs_req_initialize(struct ptlrpc_service_part *svcpt,
+ struct ptlrpc_request *req, bool hp);
+void ptlrpc_nrs_req_finalize(struct ptlrpc_request *req);
+void ptlrpc_nrs_req_stop_nolock(struct ptlrpc_request *req);
+void ptlrpc_nrs_req_add(struct ptlrpc_service_part *svcpt,
+ struct ptlrpc_request *req, bool hp);
+
+struct ptlrpc_request *
+ptlrpc_nrs_req_get_nolock0(struct ptlrpc_service_part *svcpt, bool hp,
+ bool peek, bool force);
+
+static inline struct ptlrpc_request *
+ptlrpc_nrs_req_get_nolock(struct ptlrpc_service_part *svcpt, bool hp,
+ bool force)
+{
+ return ptlrpc_nrs_req_get_nolock0(svcpt, hp, false, force);
+}
+
+static inline struct ptlrpc_request *
+ptlrpc_nrs_req_peek_nolock(struct ptlrpc_service_part *svcpt, bool hp)
+{
+ return ptlrpc_nrs_req_get_nolock0(svcpt, hp, true, false);
+}
+
+void ptlrpc_nrs_req_del_nolock(struct ptlrpc_request *req);
+bool ptlrpc_nrs_req_pending_nolock(struct ptlrpc_service_part *svcpt, bool hp);
+
+int ptlrpc_nrs_policy_control(const struct ptlrpc_service *svc,
+ enum ptlrpc_nrs_queue_type queue, char *name,
+ enum ptlrpc_nrs_ctl opc, bool single, void *arg);
+
+int ptlrpc_nrs_init(void);
+void ptlrpc_nrs_fini(void);
+
+static inline bool nrs_svcpt_has_hp(const struct ptlrpc_service_part *svcpt)
+{
+ return svcpt->scp_nrs_hp != NULL;
+}
+
+static inline bool nrs_svc_has_hp(const struct ptlrpc_service *svc)
+{
+ /**
+ * If the first service partition has an HP NRS head, all service
+ * partitions will.
+ */
+ return nrs_svcpt_has_hp(svc->srv_parts[0]);
+}
+
+static inline
+struct ptlrpc_nrs *nrs_svcpt2nrs(struct ptlrpc_service_part *svcpt, bool hp)
+{
+ LASSERT(ergo(hp, nrs_svcpt_has_hp(svcpt)));
+ return hp ? svcpt->scp_nrs_hp : &svcpt->scp_nrs_reg;
+}
+
+static inline int nrs_pol2cptid(const struct ptlrpc_nrs_policy *policy)
+{
+ return policy->pol_nrs->nrs_svcpt->scp_cpt;
+}
+
+static inline
+struct ptlrpc_service *nrs_pol2svc(struct ptlrpc_nrs_policy *policy)
+{
+ return policy->pol_nrs->nrs_svcpt->scp_service;
+}
+
+static inline
+struct ptlrpc_service_part *nrs_pol2svcpt(struct ptlrpc_nrs_policy *policy)
+{
+ return policy->pol_nrs->nrs_svcpt;
+}
+
+static inline
+struct cfs_cpt_table *nrs_pol2cptab(struct ptlrpc_nrs_policy *policy)
+{
+ return nrs_pol2svc(policy)->srv_cptable;
+}
+
+static inline struct ptlrpc_nrs_resource *
+nrs_request_resource(struct ptlrpc_nrs_request *nrq)
+{
+ LASSERT(nrq->nr_initialized);
+ LASSERT(!nrq->nr_finalized);
+
+ return nrq->nr_res_ptrs[nrq->nr_res_idx];
+}
+
+static inline
+struct ptlrpc_nrs_policy *nrs_request_policy(struct ptlrpc_nrs_request *nrq)
+{
+ return nrs_request_resource(nrq)->res_policy;
+}
+
+#define NRS_LPROCFS_QUANTUM_NAME_REG "reg_quantum:"
+#define NRS_LPROCFS_QUANTUM_NAME_HP "hp_quantum:"
+
+/**
+ * the maximum size of nrs_crrn_client::cc_quantum and nrs_orr_data::od_quantum.
+ */
+#define LPROCFS_NRS_QUANTUM_MAX 65535
+
+/**
+ * Max valid command string is the size of the labels, plus "65535" twice, plus
+ * a separating space character.
+ */
+#define LPROCFS_NRS_WR_QUANTUM_MAX_CMD \
+ sizeof(NRS_LPROCFS_QUANTUM_NAME_REG __stringify(LPROCFS_NRS_QUANTUM_MAX) " " \
+ NRS_LPROCFS_QUANTUM_NAME_HP __stringify(LPROCFS_NRS_QUANTUM_MAX))
+
+/* recovd_thread.c */
+
+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,
+ int mdcnt);
+void ptlrpc_add_bulk_page(struct ptlrpc_bulk_desc *desc, struct page *page,
+ int pageoffset, int len);
+
+/* pack_generic.c */
+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);
+int ping_evictor_wake(struct obd_export *exp);
+
+/* sec_null.c */
+int sptlrpc_null_init(void);
+void sptlrpc_null_fini(void);
+
+/* sec_plain.c */
+int sptlrpc_plain_init(void);
+void sptlrpc_plain_fini(void);
+
+/* sec_bulk.c */
+int sptlrpc_enc_pool_init(void);
+void sptlrpc_enc_pool_fini(void);
+int sptlrpc_proc_enc_pool_seq_show(struct seq_file *m, void *v);
+
+/* sec_lproc.c */
+#if defined(CONFIG_PROC_FS)
+int sptlrpc_lproc_init(void);
+void sptlrpc_lproc_fini(void);
+#else
+static inline int sptlrpc_lproc_init(void)
+{ return 0; }
+static inline void sptlrpc_lproc_fini(void) {}
+#endif
+
+/* sec_gc.c */
+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 sptlrpc_init(void);
+void sptlrpc_fini(void);
+
+static inline int ll_rpc_recoverable_error(int rc)
+{
+ return (rc == -ENOTCONN || rc == -ENODEV);
+}
+
+static inline int tgt_mod_init(void)
+{
+ return 0;
+}
+
+static inline void tgt_mod_exit(void)
+{
+ return;
+}
+
+static inline void ptlrpc_reqset_put(struct ptlrpc_request_set *set)
+{
+ if (atomic_dec_and_test(&set->set_refcount))
+ OBD_FREE_PTR(set);
+}
+#endif /* PTLRPC_INTERNAL_H */
Code Review / kvmfornfv.git / blobdiff