tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * HighPoint RR3xxx/4xxx controller driver for Linux
3 * Copyright (C) 2006-2009 HighPoint Technologies, Inc. All Rights Reserved.
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; version 2 of the License.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * Please report bugs/comments/suggestions to linux@highpoint-tech.com
15 *
16 * For more information, visit http://www.highpoint-tech.com
17 */
18#ifndef _HPTIOP_H_
19#define _HPTIOP_H_
20
21struct hpt_iopmu_itl {
22 __le32 resrved0[4];
23 __le32 inbound_msgaddr0;
24 __le32 inbound_msgaddr1;
25 __le32 outbound_msgaddr0;
26 __le32 outbound_msgaddr1;
27 __le32 inbound_doorbell;
28 __le32 inbound_intstatus;
29 __le32 inbound_intmask;
30 __le32 outbound_doorbell;
31 __le32 outbound_intstatus;
32 __le32 outbound_intmask;
33 __le32 reserved1[2];
34 __le32 inbound_queue;
35 __le32 outbound_queue;
36};
37
38#define IOPMU_QUEUE_EMPTY 0xffffffff
39#define IOPMU_QUEUE_MASK_HOST_BITS 0xf0000000
40#define IOPMU_QUEUE_ADDR_HOST_BIT 0x80000000
41#define IOPMU_QUEUE_REQUEST_SIZE_BIT 0x40000000
42#define IOPMU_QUEUE_REQUEST_RESULT_BIT 0x40000000
43
44#define IOPMU_OUTBOUND_INT_MSG0 1
45#define IOPMU_OUTBOUND_INT_MSG1 2
46#define IOPMU_OUTBOUND_INT_DOORBELL 4
47#define IOPMU_OUTBOUND_INT_POSTQUEUE 8
48#define IOPMU_OUTBOUND_INT_PCI 0x10
49
50#define IOPMU_INBOUND_INT_MSG0 1
51#define IOPMU_INBOUND_INT_MSG1 2
52#define IOPMU_INBOUND_INT_DOORBELL 4
53#define IOPMU_INBOUND_INT_ERROR 8
54#define IOPMU_INBOUND_INT_POSTQUEUE 0x10
55
56#define MVIOP_QUEUE_LEN 512
57
58struct hpt_iopmu_mv {
59 __le32 inbound_head;
60 __le32 inbound_tail;
61 __le32 outbound_head;
62 __le32 outbound_tail;
63 __le32 inbound_msg;
64 __le32 outbound_msg;
65 __le32 reserve[10];
66 __le64 inbound_q[MVIOP_QUEUE_LEN];
67 __le64 outbound_q[MVIOP_QUEUE_LEN];
68};
69
70struct hpt_iopmv_regs {
71 __le32 reserved[0x20400 / 4];
72 __le32 inbound_doorbell;
73 __le32 inbound_intmask;
74 __le32 outbound_doorbell;
75 __le32 outbound_intmask;
76};
77
78#define MVIOP_MU_QUEUE_ADDR_HOST_MASK (~(0x1full))
79#define MVIOP_MU_QUEUE_ADDR_HOST_BIT 4
80
81#define MVIOP_MU_QUEUE_ADDR_IOP_HIGH32 0xffffffff
82#define MVIOP_MU_QUEUE_REQUEST_RESULT_BIT 1
83#define MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT 2
84
85#define MVIOP_MU_INBOUND_INT_MSG 1
86#define MVIOP_MU_INBOUND_INT_POSTQUEUE 2
87#define MVIOP_MU_OUTBOUND_INT_MSG 1
88#define MVIOP_MU_OUTBOUND_INT_POSTQUEUE 2
89
90enum hpt_iopmu_message {
91 /* host-to-iop messages */
92 IOPMU_INBOUND_MSG0_NOP = 0,
93 IOPMU_INBOUND_MSG0_RESET,
94 IOPMU_INBOUND_MSG0_FLUSH,
95 IOPMU_INBOUND_MSG0_SHUTDOWN,
96 IOPMU_INBOUND_MSG0_STOP_BACKGROUND_TASK,
97 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK,
98 IOPMU_INBOUND_MSG0_MAX = 0xff,
99 /* iop-to-host messages */
100 IOPMU_OUTBOUND_MSG0_REGISTER_DEVICE_0 = 0x100,
101 IOPMU_OUTBOUND_MSG0_REGISTER_DEVICE_MAX = 0x1ff,
102 IOPMU_OUTBOUND_MSG0_UNREGISTER_DEVICE_0 = 0x200,
103 IOPMU_OUTBOUND_MSG0_UNREGISTER_DEVICE_MAX = 0x2ff,
104 IOPMU_OUTBOUND_MSG0_REVALIDATE_DEVICE_0 = 0x300,
105 IOPMU_OUTBOUND_MSG0_REVALIDATE_DEVICE_MAX = 0x3ff,
106};
107
108struct hpt_iop_request_header {
109 __le32 size;
110 __le32 type;
111 __le32 flags;
112 __le32 result;
113 __le32 context; /* host context */
114 __le32 context_hi32;
115};
116
117#define IOP_REQUEST_FLAG_SYNC_REQUEST 1
118#define IOP_REQUEST_FLAG_BIST_REQUEST 2
119#define IOP_REQUEST_FLAG_REMAPPED 4
120#define IOP_REQUEST_FLAG_OUTPUT_CONTEXT 8
121
122enum hpt_iop_request_type {
123 IOP_REQUEST_TYPE_GET_CONFIG = 0,
124 IOP_REQUEST_TYPE_SET_CONFIG,
125 IOP_REQUEST_TYPE_BLOCK_COMMAND,
126 IOP_REQUEST_TYPE_SCSI_COMMAND,
127 IOP_REQUEST_TYPE_IOCTL_COMMAND,
128 IOP_REQUEST_TYPE_MAX
129};
130
131enum hpt_iop_result_type {
132 IOP_RESULT_PENDING = 0,
133 IOP_RESULT_SUCCESS,
134 IOP_RESULT_FAIL,
135 IOP_RESULT_BUSY,
136 IOP_RESULT_RESET,
137 IOP_RESULT_INVALID_REQUEST,
138 IOP_RESULT_BAD_TARGET,
139 IOP_RESULT_CHECK_CONDITION,
140};
141
142struct hpt_iop_request_get_config {
143 struct hpt_iop_request_header header;
144 __le32 interface_version;
145 __le32 firmware_version;
146 __le32 max_requests;
147 __le32 request_size;
148 __le32 max_sg_count;
149 __le32 data_transfer_length;
150 __le32 alignment_mask;
151 __le32 max_devices;
152 __le32 sdram_size;
153};
154
155struct hpt_iop_request_set_config {
156 struct hpt_iop_request_header header;
157 __le32 iop_id;
158 __le16 vbus_id;
159 __le16 max_host_request_size;
160 __le32 reserve[6];
161};
162
163struct hpt_iopsg {
164 __le32 size;
165 __le32 eot; /* non-zero: end of table */
166 __le64 pci_address;
167};
168
169struct hpt_iop_request_block_command {
170 struct hpt_iop_request_header header;
171 u8 channel;
172 u8 target;
173 u8 lun;
174 u8 pad1;
175 __le16 command; /* IOP_BLOCK_COMMAND_{READ,WRITE} */
176 __le16 sectors;
177 __le64 lba;
178 struct hpt_iopsg sg_list[1];
179};
180
181#define IOP_BLOCK_COMMAND_READ 1
182#define IOP_BLOCK_COMMAND_WRITE 2
183#define IOP_BLOCK_COMMAND_VERIFY 3
184#define IOP_BLOCK_COMMAND_FLUSH 4
185#define IOP_BLOCK_COMMAND_SHUTDOWN 5
186
187struct hpt_iop_request_scsi_command {
188 struct hpt_iop_request_header header;
189 u8 channel;
190 u8 target;
191 u8 lun;
192 u8 pad1;
193 u8 cdb[16];
194 __le32 dataxfer_length;
195 struct hpt_iopsg sg_list[1];
196};
197
198struct hpt_iop_request_ioctl_command {
199 struct hpt_iop_request_header header;
200 __le32 ioctl_code;
201 __le32 inbuf_size;
202 __le32 outbuf_size;
203 __le32 bytes_returned;
204 u8 buf[1];
205 /* out data should be put at buf[(inbuf_size+3)&~3] */
206};
207
208#define HPTIOP_MAX_REQUESTS 256u
209
210struct hptiop_request {
211 struct hptiop_request *next;
212 void *req_virt;
213 u32 req_shifted_phy;
214 struct scsi_cmnd *scp;
215 int index;
216};
217
218struct hpt_scsi_pointer {
219 int mapped;
220 int sgcnt;
221 dma_addr_t dma_handle;
222};
223
224#define HPT_SCP(scp) ((struct hpt_scsi_pointer *)&(scp)->SCp)
225
226struct hptiop_hba {
227 struct hptiop_adapter_ops *ops;
228 union {
229 struct {
230 struct hpt_iopmu_itl __iomem *iop;
231 void __iomem *plx;
232 } itl;
233 struct {
234 struct hpt_iopmv_regs *regs;
235 struct hpt_iopmu_mv __iomem *mu;
236 void *internal_req;
237 dma_addr_t internal_req_phy;
238 } mv;
239 } u;
240
241 struct Scsi_Host *host;
242 struct pci_dev *pcidev;
243
244 /* IOP config info */
245 u32 interface_version;
246 u32 firmware_version;
247 u32 sdram_size;
248 u32 max_devices;
249 u32 max_requests;
250 u32 max_request_size;
251 u32 max_sg_descriptors;
252
253 u32 req_size; /* host-allocated request buffer size */
254
255 u32 iopintf_v2: 1;
256 u32 initialized: 1;
257 u32 msg_done: 1;
258
259 struct hptiop_request * req_list;
260 struct hptiop_request reqs[HPTIOP_MAX_REQUESTS];
261
262 /* used to free allocated dma area */
263 void *dma_coherent;
264 dma_addr_t dma_coherent_handle;
265
266 atomic_t reset_count;
267 atomic_t resetting;
268
269 wait_queue_head_t reset_wq;
270 wait_queue_head_t ioctl_wq;
271};
272
273struct hpt_ioctl_k {
274 struct hptiop_hba * hba;
275 u32 ioctl_code;
276 u32 inbuf_size;
277 u32 outbuf_size;
278 void *inbuf;
279 void *outbuf;
280 u32 *bytes_returned;
281 void (*done)(struct hpt_ioctl_k *);
282 int result; /* HPT_IOCTL_RESULT_ */
283};
284
285struct hptiop_adapter_ops {
286 int (*iop_wait_ready)(struct hptiop_hba *hba, u32 millisec);
287 int (*internal_memalloc)(struct hptiop_hba *hba);
288 int (*internal_memfree)(struct hptiop_hba *hba);
289 int (*map_pci_bar)(struct hptiop_hba *hba);
290 void (*unmap_pci_bar)(struct hptiop_hba *hba);
291 void (*enable_intr)(struct hptiop_hba *hba);
292 void (*disable_intr)(struct hptiop_hba *hba);
293 int (*get_config)(struct hptiop_hba *hba,
294 struct hpt_iop_request_get_config *config);
295 int (*set_config)(struct hptiop_hba *hba,
296 struct hpt_iop_request_set_config *config);
297 int (*iop_intr)(struct hptiop_hba *hba);
298 void (*post_msg)(struct hptiop_hba *hba, u32 msg);
299 void (*post_req)(struct hptiop_hba *hba, struct hptiop_request *_req);
300};
301
302#define HPT_IOCTL_RESULT_OK 0
303#define HPT_IOCTL_RESULT_FAILED (-1)
304
305#if 0
306#define dprintk(fmt, args...) do { printk(fmt, ##args); } while(0)
307#else
308#define dprintk(fmt, args...)
309#endif
310
311#endif