/*      $NetBSD: config.c,v 1.5 2008/04/28 20:24:17 martin Exp $        */

/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Doran.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

/*-
* Copyright (c) 1999 Michael Smith
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from FreeBSD: config.c,v 1.2 2000/04/11 23:04:17 msmith Exp
*/

#ifndef lint
#include <sys/cdefs.h>
__RCSID("$NetBSD: config.c,v 1.5 2008/04/28 20:24:17 martin Exp $");
#endif /* not lint */

#include <sys/types.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/queue.h>

#include <dev/ic/mlxreg.h>
#include <dev/ic/mlxio.h>

#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "extern.h"

struct conf_phys_drv {
       TAILQ_ENTRY(conf_phys_drv)      pd_link;
       int                             pd_bus;
       int                             pd_target;
       struct mlx_phys_drv             pd_drv;
};

struct conf_span {
       TAILQ_ENTRY(conf_span)          s_link;
       struct conf_phys_drv            *s_drvs[8];
       struct mlx_sys_drv_span         s_span;
};

struct conf_sys_drv {
       TAILQ_ENTRY(conf_sys_drv)       sd_link;
       struct conf_span                *sd_spans[4];
       struct mlx_sys_drv              sd_drv;
};

struct conf_config {
       TAILQ_HEAD(,conf_phys_drv)      cc_phys_drvs;
       TAILQ_HEAD(,conf_span)          cc_spans;
       TAILQ_HEAD(,conf_sys_drv)       cc_sys_drvs;
       struct conf_sys_drv             *cc_drives[32];
       struct mlx_core_cfg             cc_cfg;
};

static void     print_span(struct mlx_sys_drv_span *, int);
static void     print_sys_drive(struct conf_config *, int);
static void     print_phys_drive(struct conf_config *, int, int);

/*
* Get the configuration from the selected controller.
*
* config <controller>
*              Print the configuration for <controller>
*
* XXX update to support adding/deleting drives.
*/
int
cmd_config(char **argv)
{
       char hostname[MAXHOSTNAMELEN];
       struct conf_config conf;
       int i, j;

       if (ci.ci_firmware_id[0] < 3) {
               warnx("action not supported by this firmware version");
               return (1);
       }

       memset(&conf.cc_cfg, 0, sizeof(conf.cc_cfg));
       mlx_configuration(&conf.cc_cfg, 0);

       gethostname(hostname, sizeof(hostname));
       printf("# controller %s on %s\n", mlxname, hostname);

       printf("#\n# physical devices connected:\n");
       for (i = 0; i < 5; i++)
               for (j = 0; j < 16; j++)
                       print_phys_drive(&conf, i, j);

       printf("#\n# system drives defined:\n");
       for (i = 0; i < conf.cc_cfg.cc_num_sys_drives; i++)
               print_sys_drive(&conf, i);

       return(0);
}

/*
* Print details for the system drive (drvno) in a format that we will be
* able to parse later.
*
* drive?? <raidlevel> <writemode>
*   span? 0x????????-0x???????? ????blks on <disk> [...]
*   ...
*/
static void
print_span(struct mlx_sys_drv_span *span, int arms)
{
       int i;

       printf("0x%08x-0x%08x %u blks on", span->sp_start_lba,
           span->sp_start_lba + span->sp_nblks, span->sp_nblks);

       for (i = 0; i < arms; i++)
               printf(" disk%02d%02d", span->sp_arm[i] >> 4,
                   span->sp_arm[i] & 0x0f);

       printf("\n");
}

static void
print_sys_drive(struct conf_config *conf, int drvno)
{
       struct mlx_sys_drv *drv;
       int i;

       drv = &conf->cc_cfg.cc_sys_drives[drvno];

       printf("drive%02d ", drvno);

       switch(drv->sd_raidlevel & 0xf) {
       case MLX_SYS_DRV_RAID0:
               printf("RAID0");
               break;
        case MLX_SYS_DRV_RAID1:
               printf("RAID1");
               break;
       case MLX_SYS_DRV_RAID3:
               printf("RAID3");
               break;
       case MLX_SYS_DRV_RAID5:
               printf("RAID5");
               break;
       case MLX_SYS_DRV_RAID6:
               printf("RAID6");
               break;
       case MLX_SYS_DRV_JBOD:
               printf("JBOD");
               break;
       default:
               printf("RAID?");
               break;
       }

       printf(" write%s\n",
           drv->sd_raidlevel & MLX_SYS_DRV_WRITEBACK ? "back" : "through");

       for (i = 0; i < drv->sd_valid_spans; i++) {
               printf("  span%d ", i);
               print_span(&drv->sd_span[i], drv->sd_valid_arms);
       }
}

/*
* Print details for the physical drive at chn/targ in a format suitable for
* human consumption.
*/
static void
print_phys_drive(struct conf_config *conf, int chn, int targ)
{
       struct mlx_phys_drv *pd;

       pd = &conf->cc_cfg.cc_phys_drives[chn * 16 + targ];

       /* If the drive isn't present, don't print it. */
       if ((pd->pd_flags1 & MLX_PHYS_DRV_PRESENT) == 0)
               return;

       mlx_print_phys_drv(pd, chn, targ, "# ");
}

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