drivers/block/cpqarray.h

   1 /*
   2  *    Disk Array driver for Compaq SMART2 Controllers
   3  *    Copyright 1998 Compaq Computer Corporation
   4  *
   5  *    This program is free software; you can redistribute it and/or modify
   6  *    it under the terms of the GNU General Public License as published by
   7  *    the Free Software Foundation; either version 2 of the License, or
   8  *    (at your option) any later version.
   9  *
  10  *    This program is distributed in the hope that it will be useful,
  11  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  13  *    NON INFRINGEMENT.  See the GNU General Public License for more details.
  14  *
  15  *    You should have received a copy of the GNU General Public License
  16  *    along with this program; if not, write to the Free Software
  17  *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  *
  19  *    Questions/Comments/Bugfixes to arrays@compaq.com
  20  *
  21  *    If you want to make changes, improve or add functionality to this
  22  *    driver, you'll probably need the Compaq Array Controller Interface
  23  *    Specificiation (Document number ECG086/1198)
  24  */
  25 #ifndef CPQARRAY_H
  26 #define CPQARRAY_H
  27
  28 #ifdef __KERNEL__
  29 #include <linux/blkdev.h>
  30 #include <linux/locks.h>
  31 #include <linux/malloc.h>
  32 #include <linux/proc_fs.h>
  33 #include <linux/md.h>
  34 #include <linux/timer.h>
  35 #endif
  36
  37 #include "ida_cmd.h"
  38
  39 #define IO_OK           0
  40 #define IO_ERROR        1
  41 #define NWD             16
  42 #define NWD_SHIFT       4
  43
  44 #define IDA_TIMER       (5*HZ)
  45 #define IDA_TIMEOUT     (10*HZ)
  46
  47 #define MISC_NONFATAL_WARN      0x01
  48
  49 typedef struct {
  50         unsigned blk_size;
  51         unsigned nr_blks;
  52         unsigned cylinders;
  53         unsigned heads;
  54         unsigned sectors;
  55         int usage_count;
  56 } drv_info_t;
  57
  58 #ifdef __KERNEL__
  59
  60 struct ctlr_info;
  61 typedef struct ctlr_info ctlr_info_t;
  62
  63 struct access_method {
  64         void (*submit_command)(ctlr_info_t *h, cmdlist_t *c);
  65         void (*set_intr_mask)(ctlr_info_t *h, unsigned long val);
  66         unsigned long (*fifo_full)(ctlr_info_t *h);
  67         unsigned long (*intr_pending)(ctlr_info_t *h);
  68         unsigned long (*command_completed)(ctlr_info_t *h);
  69 };
  70
  71 struct board_type {
  72         __u32   board_id;
  73         char    *product_name;
  74         struct access_method *access;
  75 };
  76
  77 struct ctlr_info {
  78         int     ctlr;
  79         char    devname[8];
  80         __u32   log_drv_map;
  81         __u32   drv_assign_map;
  82         __u32   drv_spare_map;
  83         __u32   mp_failed_drv_map;
  84
  85         char    firm_rev[4];
  86         int     ctlr_sig;
  87
  88         int     log_drives;
  89         int     phys_drives;
  90
  91         __u32   board_id;
  92         char    *product_name;
  93
  94         __u32   vaddr;
  95         __u32   paddr;
  96         __u32   ioaddr;
  97         int     intr;
  98         int     usage_count;
  99         drv_info_t      drv[NWD];
 100         struct proc_dir_entry *proc;
 101
 102         struct access_method access;
 103
 104         cmdlist_t *reqQ;
 105         cmdlist_t *cmpQ;
 106         cmdlist_t *cmd_pool;
 107         __u32   *cmd_pool_bits;
 108
 109         unsigned int Qdepth;
 110         unsigned int maxQsinceinit;
 111
 112         unsigned int nr_requests;
 113         unsigned int nr_allocs;
 114         unsigned int nr_frees;
 115         struct timer_list timer;
 116         unsigned int misc_tflags;
 117 };
 118 #endif
 119
 120 #endif /* CPQARRAY_H */