cp.h

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/* -*- C -*- */
/*
 * Copyright (c) 2013-2020 Seagate Technology LLC and/or its Affiliates
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * For any questions about this software or licensing,
 * please email opensource@seagate.com or cortx-questions@seagate.com.
 *
 */


#pragma once

#ifndef __MOTR_SNS_CM_CP_H__
#define __MOTR_SNS_CM_CP_H__

#include "cm/cp.h"
#include "be/engine.h" /* struct m0_stob_io */
#include "be/extmap.h" /* struct m0_be_emap */

struct m0_sns_cm_cp {
        struct m0_cm_cp        sc_base;

        struct m0_fid          sc_cobfid;

        struct m0_stob_id      sc_stob_id;

        bool                   sc_is_local;

        uint64_t               sc_failed_idx;

        bool                   sc_is_acc;

        m0_bindex_t            sc_index;

        struct m0_stob_io      sc_stio;

        struct m0_stob        *sc_stob;

        bool                   sc_spare_punch;

        bool                   sc_is_hole_eof;

        struct m0_fol_frag     sc_fol_frag;
};

M0_INTERNAL struct m0_sns_cm_cp *cp2snscp(const struct m0_cm_cp *cp);

M0_INTERNAL uint64_t cp_home_loc_helper(const struct m0_cm_cp *cp);
M0_INTERNAL struct m0_cm *cpfom2cm(struct m0_fom *fom);

M0_INTERNAL bool m0_sns_cm_cp_invariant(const struct m0_cm_cp *cp);

extern const struct m0_cm_cp_ops m0_sns_cm_repair_cp_ops;
extern const struct m0_cm_cp_ops m0_sns_cm_rebalance_cp_ops;
extern const struct m0_cm_cp_ops m0_sns_cm_acc_cp_ops;

M0_INTERNAL int m0_sns_cm_cp_init(struct m0_cm_cp *cp);
M0_INTERNAL int m0_sns_cm_cp_fail(struct m0_cm_cp *cp);

M0_INTERNAL int m0_sns_cm_cp_read(struct m0_cm_cp *cp);

M0_INTERNAL int m0_sns_cm_cp_write_pre(struct m0_cm_cp *cp);

M0_INTERNAL int m0_sns_cm_cp_write(struct m0_cm_cp *cp);

M0_INTERNAL int m0_sns_cm_cp_io_wait(struct m0_cm_cp *cp);

M0_INTERNAL int m0_sns_cm_cp_sw_check(struct m0_cm_cp *cp);

M0_INTERNAL int m0_sns_cm_cp_send(struct m0_cm_cp *cp, struct m0_fop_type *ft);

M0_INTERNAL int m0_sns_cm_cp_send_wait(struct m0_cm_cp *cp);

M0_INTERNAL int m0_sns_cm_cp_buf_acquire(struct m0_cm_cp *cp);

M0_INTERNAL int m0_sns_cm_cp_recv_init(struct m0_cm_cp *cp);

M0_INTERNAL int m0_sns_cm_cp_recv_wait(struct m0_cm_cp *cp);

M0_INTERNAL void m0_sns_cm_cp_complete(struct m0_cm_cp *cp);

M0_INTERNAL int m0_sns_cm_cp_phase_next(struct m0_cm_cp *cp);

M0_INTERNAL void m0_sns_cm_cp_free(struct m0_cm_cp *cp);

M0_INTERNAL int m0_sns_cm_cp_fini(struct m0_cm_cp *cp);

M0_INTERNAL int m0_sns_cm_cp_next_phase_get(int phase, struct m0_cm_cp *cp);

M0_INTERNAL void m0_sns_cm_cp_tgt_info_fill(struct m0_sns_cm_cp *scp,
                                            const struct m0_fid *cob_fid,
                                            uint64_t stob_offset,
                                            uint64_t ag_cp_idx);

M0_INTERNAL int m0_sns_cm_cp_setup(struct m0_sns_cm_cp *scp,
                                    const struct m0_fid *cob_fid,
                                    uint64_t stob_offset,
                                    uint64_t data_seg_nr,
                                    uint64_t failed_unit_index,
                                    uint64_t ag_cp_idx);

M0_INTERNAL void m0_sns_cm_cp_buf_release(struct m0_cm_cp *cp);
M0_INTERNAL int m0_sns_cm_cp_dup(struct m0_cm_cp *src, struct m0_cm_cp **dest);
M0_INTERNAL int m0_sns_cm_cp_tx_open(struct m0_cm_cp *cp);
M0_INTERNAL int m0_sns_cm_cp_tx_close(struct m0_cm_cp *cp);
M0_INTERNAL struct m0_cob_domain *m0_sns_cm_cp2cdom(struct m0_cm_cp *cp);

#endif /* __MOTR_SNS_CM_CP_H__ */
/*
 *  Local variables:
 *  c-indentation-style: "K&R"
 *  c-basic-offset: 8
 *  tab-width: 8
 *  fill-column: 80
 *  scroll-step: 1
 *  End:
 */