/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
 * Copyright 2015 Nexenta Systems, Inc.  All rights reserved.
 */

/*
 * Kstat definitions for the SMB server module.
 */
#ifndef _SMBSRV_SMB_KSTAT_H
#define _SMBSRV_SMB_KSTAT_H

#include        <sys/kstat.h>

#ifdef  __cplusplus
extern "C" {
#endif

#define SMBSRV_KSTAT_PROCESS            "smbd"
#define SMBSRV_KSTAT_MODULE             "smbsrv"
#define SMBSRV_KSTAT_CLASS              "net"
#define SMBSRV_KSTAT_NAME               "smbsrv"
#define SMBSRV_KSTAT_NAME_CMDS          "smbsrv_commands"
#define SMBSRV_KSTAT_TXRCACHE           "smb_txreq"
#define SMBSRV_KSTAT_REQUEST_CACHE      "smb_request_cache"
#define SMBSRV_KSTAT_SESSION_CACHE      "smb_session_cache"
#define SMBSRV_KSTAT_USER_CACHE         "smb_user_cache"
#define SMBSRV_KSTAT_TREE_CACHE         "smb_tree_cache"
#define SMBSRV_KSTAT_OFILE_CACHE        "smb_ofile_cache"
#define SMBSRV_KSTAT_ODIR_CACHE         "smb_odir_cache"
#define SMBSRV_KSTAT_NODE_CACHE         "smb_node_cache"
#define SMBSRV_KSTAT_MBC_CACHE          "smb_mbc_cache"
#define SMBSRV_KSTAT_STATISTICS         "smbsrv_statistics"
#define SMBSRV_KSTAT_UNSUPPORTED        "Unsupported"
#define SMBSRV_KSTAT_WORKERS            "smb_workers"

/*
 * We don't want to pull in smb.h or smb2.h here, so we're using
 * local defines corresponding to SMB_COM_NUM, SMB2__NCMDS for
 * the ks_reqs1 and ks_reqs2 arrays, respectively.  These are
 * sanity-checked when smb_server.c is compiled.
 */
#define SMBSRV_KS_NREQS1        256     /* See: SMB_COM_NUM */
#define SMBSRV_KS_NREQS2        20      /* See: SMB2__NCMDS */

#pragma pack(1)

typedef struct smb_kstat_utilization {
        hrtime_t        ku_wtime;
        hrtime_t        ku_wlentime;
        hrtime_t        ku_rtime;
        hrtime_t        ku_rlentime;
} smb_kstat_utilization_t;

typedef struct smb_kstat_req {
        char            kr_name[KSTAT_STRLEN];
        char            kr_pad[(~(KSTAT_STRLEN & 0x07) + 1) & 0x07];
        uint64_t        kr_sum;
        uint64_t        kr_txb;
        uint64_t        kr_rxb;
        uint64_t        kr_nreq;
        uint64_t        kr_a_mean;
        uint64_t        kr_a_stddev;
        uint64_t        kr_d_mean;
        uint64_t        kr_d_stddev;
} smb_kstat_req_t;

typedef struct smbsrv_kstats {
        hrtime_t                ks_start_time;
        uint64_t                ks_txb;         /* Bytes transmitted */
        uint64_t                ks_rxb;         /* Bytes received */
        uint64_t                ks_nreq;        /* Requests treated */
        smb_kstat_utilization_t ks_utilization;
        smb_kstat_req_t         ks_reqs1[SMBSRV_KS_NREQS1];
        smb_kstat_req_t         ks_reqs2[SMBSRV_KS_NREQS2];
        uint32_t                ks_nbt_sess;    /* NBT sessions */
        uint32_t                ks_tcp_sess;    /* TCP sessions */
        uint32_t                ks_users;       /* Users logged in */
        uint32_t                ks_trees;       /* Trees connected */
        uint32_t                ks_files;       /* Open files */
        uint32_t                ks_pipes;       /* Open pipes */
        uint32_t                ks_maxreqs;     /* Max number of reqs */
        uint32_t                ks_padding;
} smbsrv_kstats_t;

#pragma pack()

#ifdef  __cplusplus
}
#endif

#endif /* _SMBSRV_SMB_KSTAT_H */