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/slab.h>
  31 #include <linux/proc_fs.h>
  32 #include <linux/timer.h>
  33 #endif
  34
  35 #include "ida_cmd.h"
  36
  37 #define IO_OK           0
  38 #define IO_ERROR        1
  39 #define NWD             16
  40 #define NWD_SHIFT       4
  41
  42 #define IDA_TIMER       (5*HZ)
  43 #define IDA_TIMEOUT     (10*HZ)
  44
  45 #define MISC_NONFATAL_WARN      0x01
  46
  47 typedef struct {
  48         unsigned blk_size;
  49         unsigned nr_blks;
  50         unsigned cylinders;
  51         unsigned heads;
  52         unsigned sectors;
  53         int usage_count;
  54 } drv_info_t;
  55
  56 #ifdef __KERNEL__
  57
  58 struct ctlr_info;
  59 typedef struct ctlr_info ctlr_info_t;
  60
  61 struct access_method {
  62         void (*submit_command)(ctlr_info_t *h, cmdlist_t *c);
  63         void (*set_intr_mask)(ctlr_info_t *h, unsigned long val);
  64         unsigned long (*fifo_full)(ctlr_info_t *h);
  65         unsigned long (*intr_pending)(ctlr_info_t *h);
  66         unsigned long (*command_completed)(ctlr_info_t *h);
  67 };
  68
  69 struct board_type {
  70         __u32   board_id;
  71         char    *product_name;
  72         struct access_method *access;
  73 };
  74
  75 struct ctlr_info {
  76         int     ctlr;
  77         char    devname[8];
  78         __u32   log_drv_map;
  79         __u32   drv_assign_map;
  80         __u32   drv_spare_map;
  81         __u32   mp_failed_drv_map;
  82
  83         char    firm_rev[4];
  84         int     ctlr_sig;
  85
  86         int     log_drives;
  87         int     phys_drives;
  88
  89         struct pci_dev *pci_dev;    /* NULL if EISA */
  90         __u32   board_id;
  91         char    *product_name;
  92
  93         void __iomem *vaddr;
  94         unsigned long paddr;
  95         unsigned long io_mem_addr;
  96         unsigned long io_mem_length;
  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         dma_addr_t cmd_pool_dhandle;
 108         unsigned long *cmd_pool_bits;
 109         struct request_queue *queue;
 110         spinlock_t lock;
 111
 112         unsigned int Qdepth;
 113         unsigned int maxQsinceinit;
 114
 115         unsigned int nr_requests;
 116         unsigned int nr_allocs;
 117         unsigned int nr_frees;
 118         struct timer_list timer;
 119         unsigned int misc_tflags;
 120 };
 121
 122 #define IDA_LOCK(i)     (&hba[i]->lock)
 123
 124 #endif
 125
 126 #endif /* CPQARRAY_H */