summaryrefslogtreecommitdiff
path: root/drivers/scsi/megaraid/megaraid_mbox.h
blob: c1d86d961a92df976c63da2dfa0cbd39d1babc52 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
/*
 *
 *			Linux MegaRAID device driver
 *
 * Copyright (c) 2003-2004  LSI Logic Corporation.
 *
 *	   This program is free software; you can redistribute it and/or
 *	   modify it under the terms of the GNU General Public License
 *	   as published by the Free Software Foundation; either version
 *	   2 of the License, or (at your option) any later version.
 *
 * FILE		: megaraid_mbox.h
 */

#ifndef _MEGARAID_H_
#define _MEGARAID_H_


#include "mega_common.h"
#include "mbox_defs.h"
#include "megaraid_ioctl.h"


#define MEGARAID_VERSION	"2.20.5.1"
#define MEGARAID_EXT_VERSION	"(Release Date: Thu Nov 16 15:32:35 EST 2006)"


/*
 * Define some PCI values here until they are put in the kernel
 */
#define PCI_DEVICE_ID_PERC4_DI_DISCOVERY		0x000E
#define PCI_SUBSYS_ID_PERC4_DI_DISCOVERY		0x0123

#define PCI_DEVICE_ID_PERC4_SC				0x1960
#define PCI_SUBSYS_ID_PERC4_SC				0x0520

#define PCI_DEVICE_ID_PERC4_DC				0x1960
#define PCI_SUBSYS_ID_PERC4_DC				0x0518

#define PCI_DEVICE_ID_VERDE				0x0407

#define PCI_DEVICE_ID_PERC4_DI_EVERGLADES		0x000F
#define PCI_SUBSYS_ID_PERC4_DI_EVERGLADES		0x014A

#define PCI_DEVICE_ID_PERC4E_SI_BIGBEND			0x0013
#define PCI_SUBSYS_ID_PERC4E_SI_BIGBEND			0x016c

#define PCI_DEVICE_ID_PERC4E_DI_KOBUK			0x0013
#define PCI_SUBSYS_ID_PERC4E_DI_KOBUK			0x016d

#define PCI_DEVICE_ID_PERC4E_DI_CORVETTE		0x0013
#define PCI_SUBSYS_ID_PERC4E_DI_CORVETTE		0x016e

#define PCI_DEVICE_ID_PERC4E_DI_EXPEDITION		0x0013
#define PCI_SUBSYS_ID_PERC4E_DI_EXPEDITION		0x016f

#define PCI_DEVICE_ID_PERC4E_DI_GUADALUPE		0x0013
#define PCI_SUBSYS_ID_PERC4E_DI_GUADALUPE		0x0170

#define PCI_DEVICE_ID_DOBSON				0x0408

#define PCI_DEVICE_ID_MEGARAID_SCSI_320_0		0x1960
#define PCI_SUBSYS_ID_MEGARAID_SCSI_320_0		0xA520

#define PCI_DEVICE_ID_MEGARAID_SCSI_320_1		0x1960
#define PCI_SUBSYS_ID_MEGARAID_SCSI_320_1		0x0520

#define PCI_DEVICE_ID_MEGARAID_SCSI_320_2		0x1960
#define PCI_SUBSYS_ID_MEGARAID_SCSI_320_2		0x0518

#define PCI_DEVICE_ID_MEGARAID_I4_133_RAID		0x1960
#define PCI_SUBSYS_ID_MEGARAID_I4_133_RAID		0x0522

#define PCI_DEVICE_ID_MEGARAID_SATA_150_4		0x1960
#define PCI_SUBSYS_ID_MEGARAID_SATA_150_4		0x4523

#define PCI_DEVICE_ID_MEGARAID_SATA_150_6		0x1960
#define PCI_SUBSYS_ID_MEGARAID_SATA_150_6		0x0523

#define PCI_DEVICE_ID_LINDSAY				0x0409

#define PCI_DEVICE_ID_INTEL_RAID_SRCS16			0x1960
#define PCI_SUBSYS_ID_INTEL_RAID_SRCS16			0x0523

#define PCI_DEVICE_ID_INTEL_RAID_SRCU41L_LAKE_SHETEK	0x1960
#define PCI_SUBSYS_ID_INTEL_RAID_SRCU41L_LAKE_SHETEK	0x0520

#define PCI_SUBSYS_ID_PERC3_QC				0x0471
#define PCI_SUBSYS_ID_PERC3_DC				0x0493
#define PCI_SUBSYS_ID_PERC3_SC				0x0475
#define PCI_SUBSYS_ID_CERC_ATA100_4CH			0x0511


#define MBOX_MAX_SCSI_CMDS	128	// number of cmds reserved for kernel
#define MBOX_MAX_USER_CMDS	32	// number of cmds for applications
#define MBOX_DEF_CMD_PER_LUN	64	// default commands per lun
#define MBOX_DEFAULT_SG_SIZE	26	// default sg size supported by all fw
#define MBOX_MAX_SG_SIZE	32	// maximum scatter-gather list size
#define MBOX_MAX_SECTORS	128	// maximum sectors per IO
#define MBOX_TIMEOUT		30	// timeout value for internal cmds
#define MBOX_BUSY_WAIT		10	// max usec to wait for busy mailbox
#define MBOX_RESET_WAIT		180	// wait these many seconds in reset
#define MBOX_RESET_EXT_WAIT	120	// extended wait reset
#define MBOX_SYNC_WAIT_CNT	0xFFFF	// wait loop index for synchronous mode

#define MBOX_SYNC_DELAY_200	200	// 200 micro-seconds

/*
 * maximum transfer that can happen through the firmware commands issued
 * internnaly from the driver.
 */
#define MBOX_IBUF_SIZE		4096


/**
 * mbox_ccb_t - command control block specific to mailbox based controllers
 * @raw_mbox		: raw mailbox pointer
 * @mbox		: mailbox
 * @mbox64		: extended mailbox
 * @mbox_dma_h		: maibox dma address
 * @sgl64		: 64-bit scatter-gather list
 * @sgl32		: 32-bit scatter-gather list
 * @sgl_dma_h		: dma handle for the scatter-gather list
 * @pthru		: passthru structure
 * @pthru_dma_h		: dma handle for the passthru structure
 * @epthru		: extended passthru structure
 * @epthru_dma_h	: dma handle for extended passthru structure
 * @buf_dma_h		: dma handle for buffers w/o sg list
 *
 * command control block specific to the mailbox based controllers
 */
typedef struct {
	uint8_t			*raw_mbox;
	mbox_t			*mbox;
	mbox64_t		*mbox64;
	dma_addr_t		mbox_dma_h;
	mbox_sgl64		*sgl64;
	mbox_sgl32		*sgl32;
	dma_addr_t		sgl_dma_h;
	mraid_passthru_t	*pthru;
	dma_addr_t		pthru_dma_h;
	mraid_epassthru_t	*epthru;
	dma_addr_t		epthru_dma_h;
	dma_addr_t		buf_dma_h;
} mbox_ccb_t;


/**
 * mraid_device_t - adapter soft state structure for mailbox controllers
 * @una_mbox64			: 64-bit mbox - unaligned
 * @una_mbox64_dma		: mbox dma addr - unaligned
 * @mbox			: 32-bit mbox - aligned
 * @mbox64			: 64-bit mbox - aligned
 * @mbox_dma			: mbox dma addr - aligned
 * @mailbox_lock		: exclusion lock for the mailbox
 * @baseport			: base port of hba memory
 * @baseaddr			: mapped addr of hba memory
 * @mbox_pool			: pool of mailboxes
 * @mbox_pool_handle		: handle for the mailbox pool memory
 * @epthru_pool			: a pool for extended passthru commands
 * @epthru_pool_handle		: handle to the pool above
 * @sg_pool			: pool of scatter-gather lists for this driver
 * @sg_pool_handle		: handle to the pool above
 * @ccb_list			: list of our command control blocks
 * @uccb_list			: list of cmd control blocks for mgmt module
 * @umbox64			: array of mailbox for user commands (cmm)
 * @pdrv_state			: array for state of each physical drive.
 * @last_disp			: flag used to show device scanning
 * @hw_error			: set if FW not responding
 * @fast_load			: If set, skip physical device scanning
 * @channel_class		: channel class, RAID or SCSI
 * @sysfs_mtx			: mutex to serialize access to sysfs res.
 * @sysfs_uioc			: management packet to issue FW calls from sysfs
 * @sysfs_mbox64		: mailbox packet to issue FW calls from sysfs
 * @sysfs_buffer		: data buffer for FW commands issued from sysfs
 * @sysfs_buffer_dma		: DMA buffer for FW commands issued from sysfs
 * @sysfs_wait_q		: wait queue for sysfs operations
 * @random_del_supported	: set if the random deletion is supported
 * @curr_ldmap			: current LDID map
 *
 * Initialization structure for mailbox controllers: memory based and IO based
 * All the fields in this structure are LLD specific and may be discovered at
 * init() or start() time.
 *
 * NOTE: The fields of this structures are placed to minimize cache misses
 */
#define MAX_LD_EXTENDED64	64
typedef struct {
	mbox64_t			*una_mbox64;
	dma_addr_t			una_mbox64_dma;
	mbox_t				*mbox;
	mbox64_t			*mbox64;
	dma_addr_t			mbox_dma;
	spinlock_t			mailbox_lock;
	unsigned long			baseport;
	void __iomem *			baseaddr;
	struct mraid_pci_blk		mbox_pool[MBOX_MAX_SCSI_CMDS];
	struct dma_pool			*mbox_pool_handle;
	struct mraid_pci_blk		epthru_pool[MBOX_MAX_SCSI_CMDS];
	struct dma_pool			*epthru_pool_handle;
	struct mraid_pci_blk		sg_pool[MBOX_MAX_SCSI_CMDS];
	struct dma_pool			*sg_pool_handle;
	mbox_ccb_t			ccb_list[MBOX_MAX_SCSI_CMDS];
	mbox_ccb_t			uccb_list[MBOX_MAX_USER_CMDS];
	mbox64_t			umbox64[MBOX_MAX_USER_CMDS];

	uint8_t				pdrv_state[MBOX_MAX_PHYSICAL_DRIVES];
	uint32_t			last_disp;
	int				hw_error;
	int				fast_load;
	uint8_t				channel_class;
	struct mutex			sysfs_mtx;
	uioc_t				*sysfs_uioc;
	mbox64_t			*sysfs_mbox64;
	caddr_t				sysfs_buffer;
	dma_addr_t			sysfs_buffer_dma;
	wait_queue_head_t		sysfs_wait_q;
	int				random_del_supported;
	uint16_t			curr_ldmap[MAX_LD_EXTENDED64];
} mraid_device_t;

// route to raid device from adapter
#define ADAP2RAIDDEV(adp)	((mraid_device_t *)((adp)->raid_device))

#define MAILBOX_LOCK(rdev)	(&(rdev)->mailbox_lock)

// Find out if this channel is a RAID or SCSI
#define IS_RAID_CH(rdev, ch)	(((rdev)->channel_class >> (ch)) & 0x01)


#define RDINDOOR(rdev)		readl((rdev)->baseaddr + 0x20)
#define RDOUTDOOR(rdev)		readl((rdev)->baseaddr + 0x2C)
#define WRINDOOR(rdev, value)	writel(value, (rdev)->baseaddr + 0x20)
#define WROUTDOOR(rdev, value)	writel(value, (rdev)->baseaddr + 0x2C)

#endif // _MEGARAID_H_

// vim: set ts=8 sw=8 tw=78: