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 iss_storagedev@hp.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
 47typedef 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
 58struct ctlr_info;
 59typedef struct ctlr_info ctlr_info_t;
 60
 61struct 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
 69struct board_type {
 70	__u32	board_id;
 71	char	*product_name;
 72	struct access_method *access;
 73};
 74
 75struct 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 */