scsi: ufs: Stop using the clock scaling lock in the error handler
[platform/kernel/linux-rpi.git] / drivers / scsi / 3w-9xxx.h
1 /*
2    3w-9xxx.h -- 3ware 9000 Storage Controller device driver for Linux.
3
4    Written By: Adam Radford <aradford@gmail.com>
5    Modifications By: Tom Couch
6
7    Copyright (C) 2004-2009 Applied Micro Circuits Corporation.
8    Copyright (C) 2010 LSI Corporation.
9
10    This program is free software; you can redistribute it and/or modify
11    it under the terms of the GNU General Public License as published by
12    the Free Software Foundation; version 2 of the License.
13
14    This program is distributed in the hope that it will be useful,
15    but WITHOUT ANY WARRANTY; without even the implied warranty of
16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17    GNU General Public License for more details.
18
19    NO WARRANTY
20    THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
21    CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
22    LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
23    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
24    solely responsible for determining the appropriateness of using and
25    distributing the Program and assumes all risks associated with its
26    exercise of rights under this Agreement, including but not limited to
27    the risks and costs of program errors, damage to or loss of data,
28    programs or equipment, and unavailability or interruption of operations.
29
30    DISCLAIMER OF LIABILITY
31    NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
32    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33    DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
34    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
35    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
36    USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
37    HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
38
39    You should have received a copy of the GNU General Public License
40    along with this program; if not, write to the Free Software
41    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
42
43    Bugs/Comments/Suggestions should be mailed to:
44    aradford@gmail.com
45 */
46
47 #ifndef _3W_9XXX_H
48 #define _3W_9XXX_H
49
50 /* AEN string type */
51 typedef struct TAG_twa_message_type {
52         unsigned int   code;
53         char           *text;
54 } twa_message_type;
55
56 /* AEN strings */
57 static twa_message_type twa_aen_table[] = {
58         {0x0000, "AEN queue empty"},
59         {0x0001, "Controller reset occurred"},
60         {0x0002, "Degraded unit detected"},
61         {0x0003, "Controller error occurred"},
62         {0x0004, "Background rebuild failed"},
63         {0x0005, "Background rebuild done"},
64         {0x0006, "Incomplete unit detected"},
65         {0x0007, "Background initialize done"},
66         {0x0008, "Unclean shutdown detected"},
67         {0x0009, "Drive timeout detected"},
68         {0x000A, "Drive error detected"},
69         {0x000B, "Rebuild started"},
70         {0x000C, "Background initialize started"},
71         {0x000D, "Entire logical unit was deleted"},
72         {0x000E, "Background initialize failed"},
73         {0x000F, "SMART attribute exceeded threshold"},
74         {0x0010, "Power supply reported AC under range"},
75         {0x0011, "Power supply reported DC out of range"},
76         {0x0012, "Power supply reported a malfunction"},
77         {0x0013, "Power supply predicted malfunction"},
78         {0x0014, "Battery charge is below threshold"},
79         {0x0015, "Fan speed is below threshold"},
80         {0x0016, "Temperature sensor is above threshold"},
81         {0x0017, "Power supply was removed"},
82         {0x0018, "Power supply was inserted"},
83         {0x0019, "Drive was removed from a bay"},
84         {0x001A, "Drive was inserted into a bay"},
85         {0x001B, "Drive bay cover door was opened"},
86         {0x001C, "Drive bay cover door was closed"},
87         {0x001D, "Product case was opened"},
88         {0x0020, "Prepare for shutdown (power-off)"},
89         {0x0021, "Downgrade UDMA mode to lower speed"},
90         {0x0022, "Upgrade UDMA mode to higher speed"},
91         {0x0023, "Sector repair completed"},
92         {0x0024, "Sbuf memory test failed"},
93         {0x0025, "Error flushing cached write data to array"},
94         {0x0026, "Drive reported data ECC error"},
95         {0x0027, "DCB has checksum error"},
96         {0x0028, "DCB version is unsupported"},
97         {0x0029, "Background verify started"},
98         {0x002A, "Background verify failed"},
99         {0x002B, "Background verify done"},
100         {0x002C, "Bad sector overwritten during rebuild"},
101         {0x002D, "Background rebuild error on source drive"},
102         {0x002E, "Replace failed because replacement drive too small"},
103         {0x002F, "Verify failed because array was never initialized"},
104         {0x0030, "Unsupported ATA drive"},
105         {0x0031, "Synchronize host/controller time"},
106         {0x0032, "Spare capacity is inadequate for some units"},
107         {0x0033, "Background migration started"},
108         {0x0034, "Background migration failed"},
109         {0x0035, "Background migration done"},
110         {0x0036, "Verify detected and fixed data/parity mismatch"},
111         {0x0037, "SO-DIMM incompatible"},
112         {0x0038, "SO-DIMM not detected"},
113         {0x0039, "Corrected Sbuf ECC error"},
114         {0x003A, "Drive power on reset detected"},
115         {0x003B, "Background rebuild paused"},
116         {0x003C, "Background initialize paused"},
117         {0x003D, "Background verify paused"},
118         {0x003E, "Background migration paused"},
119         {0x003F, "Corrupt flash file system detected"},
120         {0x0040, "Flash file system repaired"},
121         {0x0041, "Unit number assignments were lost"},
122         {0x0042, "Error during read of primary DCB"},
123         {0x0043, "Latent error found in backup DCB"},
124         {0x00FC, "Recovered/finished array membership update"},
125         {0x00FD, "Handler lockup"},
126         {0x00FE, "Retrying PCI transfer"},
127         {0x00FF, "AEN queue is full"},
128         {0xFFFFFFFF, (char*) 0}
129 };
130
131 /* AEN severity table */
132 static char *twa_aen_severity_table[] =
133 {
134         "None", "ERROR", "WARNING", "INFO", "DEBUG", (char*) 0
135 };
136
137 /* Error strings */
138 static twa_message_type twa_error_table[] = {
139         {0x0100, "SGL entry contains zero data"},
140         {0x0101, "Invalid command opcode"},
141         {0x0102, "SGL entry has unaligned address"},
142         {0x0103, "SGL size does not match command"},
143         {0x0104, "SGL entry has illegal length"},
144         {0x0105, "Command packet is not aligned"},
145         {0x0106, "Invalid request ID"},
146         {0x0107, "Duplicate request ID"},
147         {0x0108, "ID not locked"},
148         {0x0109, "LBA out of range"},
149         {0x010A, "Logical unit not supported"},
150         {0x010B, "Parameter table does not exist"},
151         {0x010C, "Parameter index does not exist"},
152         {0x010D, "Invalid field in CDB"},
153         {0x010E, "Specified port has invalid drive"},
154         {0x010F, "Parameter item size mismatch"},
155         {0x0110, "Failed memory allocation"},
156         {0x0111, "Memory request too large"},
157         {0x0112, "Out of memory segments"},
158         {0x0113, "Invalid address to deallocate"},
159         {0x0114, "Out of memory"},
160         {0x0115, "Out of heap"},
161         {0x0120, "Double degrade"},
162         {0x0121, "Drive not degraded"},
163         {0x0122, "Reconstruct error"},
164         {0x0123, "Replace not accepted"},
165         {0x0124, "Replace drive capacity too small"},
166         {0x0125, "Sector count not allowed"},
167         {0x0126, "No spares left"},
168         {0x0127, "Reconstruct error"},
169         {0x0128, "Unit is offline"},
170         {0x0129, "Cannot update status to DCB"},
171         {0x0130, "Invalid stripe handle"},
172         {0x0131, "Handle that was not locked"},
173         {0x0132, "Handle that was not empty"},
174         {0x0133, "Handle has different owner"},
175         {0x0140, "IPR has parent"},
176         {0x0150, "Illegal Pbuf address alignment"},
177         {0x0151, "Illegal Pbuf transfer length"},
178         {0x0152, "Illegal Sbuf address alignment"},
179         {0x0153, "Illegal Sbuf transfer length"},
180         {0x0160, "Command packet too large"},
181         {0x0161, "SGL exceeds maximum length"},
182         {0x0162, "SGL has too many entries"},
183         {0x0170, "Insufficient resources for rebuilder"},
184         {0x0171, "Verify error (data != parity)"},
185         {0x0180, "Requested segment not in directory of this DCB"},
186         {0x0181, "DCB segment has unsupported version"},
187         {0x0182, "DCB segment has checksum error"},
188         {0x0183, "DCB support (settings) segment invalid"},
189         {0x0184, "DCB UDB (unit descriptor block) segment invalid"},
190         {0x0185, "DCB GUID (globally unique identifier) segment invalid"},
191         {0x01A0, "Could not clear Sbuf"},
192         {0x01C0, "Flash identify failed"},
193         {0x01C1, "Flash out of bounds"},
194         {0x01C2, "Flash verify error"},
195         {0x01C3, "Flash file object not found"},
196         {0x01C4, "Flash file already present"},
197         {0x01C5, "Flash file system full"},
198         {0x01C6, "Flash file not present"},
199         {0x01C7, "Flash file size error"},
200         {0x01C8, "Bad flash file checksum"},
201         {0x01CA, "Corrupt flash file system detected"},
202         {0x01D0, "Invalid field in parameter list"},
203         {0x01D1, "Parameter list length error"},
204         {0x01D2, "Parameter item is not changeable"},
205         {0x01D3, "Parameter item is not saveable"},
206         {0x0200, "UDMA CRC error"},
207         {0x0201, "Internal CRC error"},
208         {0x0202, "Data ECC error"},
209         {0x0203, "ADP level 1 error"},
210         {0x0204, "Port timeout"},
211         {0x0205, "Drive power on reset"},
212         {0x0206, "ADP level 2 error"},
213         {0x0207, "Soft reset failed"},
214         {0x0208, "Drive not ready"},
215         {0x0209, "Unclassified port error"},
216         {0x020A, "Drive aborted command"},
217         {0x0210, "Internal CRC error"},
218         {0x0211, "PCI abort error"},
219         {0x0212, "PCI parity error"},
220         {0x0213, "Port handler error"},
221         {0x0214, "Token interrupt count error"},
222         {0x0215, "Timeout waiting for PCI transfer"},
223         {0x0216, "Corrected buffer ECC"},
224         {0x0217, "Uncorrected buffer ECC"},
225         {0x0230, "Unsupported command during flash recovery"},
226         {0x0231, "Next image buffer expected"},
227         {0x0232, "Binary image architecture incompatible"},
228         {0x0233, "Binary image has no signature"},
229         {0x0234, "Binary image has bad checksum"},
230         {0x0235, "Image downloaded overflowed buffer"},
231         {0x0240, "I2C device not found"},
232         {0x0241, "I2C transaction aborted"},
233         {0x0242, "SO-DIMM parameter(s) incompatible using defaults"},
234         {0x0243, "SO-DIMM unsupported"},
235         {0x0248, "SPI transfer status error"},
236         {0x0249, "SPI transfer timeout error"},
237         {0x0250, "Invalid unit descriptor size in CreateUnit"},
238         {0x0251, "Unit descriptor size exceeds data buffer in CreateUnit"},
239         {0x0252, "Invalid value in CreateUnit descriptor"},
240         {0x0253, "Inadequate disk space to support descriptor in CreateUnit"},
241         {0x0254, "Unable to create data channel for this unit descriptor"},
242         {0x0255, "CreateUnit descriptor specifies a drive already in use"},
243         {0x0256, "Unable to write configuration to all disks during CreateUnit"},
244         {0x0257, "CreateUnit does not support this descriptor version"},
245         {0x0258, "Invalid subunit for RAID 0 or 5 in CreateUnit"},
246         {0x0259, "Too many descriptors in CreateUnit"},
247         {0x025A, "Invalid configuration specified in CreateUnit descriptor"},
248         {0x025B, "Invalid LBA offset specified in CreateUnit descriptor"},
249         {0x025C, "Invalid stripelet size specified in CreateUnit descriptor"},
250         {0x0260, "SMART attribute exceeded threshold"},
251         {0xFFFFFFFF, (char*) 0}
252 };
253
254 /* Control register bit definitions */
255 #define TW_CONTROL_CLEAR_HOST_INTERRUPT        0x00080000
256 #define TW_CONTROL_CLEAR_ATTENTION_INTERRUPT   0x00040000
257 #define TW_CONTROL_MASK_COMMAND_INTERRUPT      0x00020000
258 #define TW_CONTROL_MASK_RESPONSE_INTERRUPT     0x00010000
259 #define TW_CONTROL_UNMASK_COMMAND_INTERRUPT    0x00008000
260 #define TW_CONTROL_UNMASK_RESPONSE_INTERRUPT   0x00004000
261 #define TW_CONTROL_CLEAR_ERROR_STATUS          0x00000200
262 #define TW_CONTROL_ISSUE_SOFT_RESET            0x00000100
263 #define TW_CONTROL_ENABLE_INTERRUPTS           0x00000080
264 #define TW_CONTROL_DISABLE_INTERRUPTS          0x00000040
265 #define TW_CONTROL_ISSUE_HOST_INTERRUPT        0x00000020
266 #define TW_CONTROL_CLEAR_PARITY_ERROR          0x00800000
267 #define TW_CONTROL_CLEAR_QUEUE_ERROR           0x00400000
268 #define TW_CONTROL_CLEAR_PCI_ABORT             0x00100000
269
270 /* Status register bit definitions */
271 #define TW_STATUS_MAJOR_VERSION_MASK           0xF0000000
272 #define TW_STATUS_MINOR_VERSION_MASK           0x0F000000
273 #define TW_STATUS_PCI_PARITY_ERROR             0x00800000
274 #define TW_STATUS_QUEUE_ERROR                  0x00400000
275 #define TW_STATUS_MICROCONTROLLER_ERROR        0x00200000
276 #define TW_STATUS_PCI_ABORT                    0x00100000
277 #define TW_STATUS_HOST_INTERRUPT               0x00080000
278 #define TW_STATUS_ATTENTION_INTERRUPT          0x00040000
279 #define TW_STATUS_COMMAND_INTERRUPT            0x00020000
280 #define TW_STATUS_RESPONSE_INTERRUPT           0x00010000
281 #define TW_STATUS_COMMAND_QUEUE_FULL           0x00008000
282 #define TW_STATUS_RESPONSE_QUEUE_EMPTY         0x00004000
283 #define TW_STATUS_MICROCONTROLLER_READY        0x00002000
284 #define TW_STATUS_COMMAND_QUEUE_EMPTY          0x00001000
285 #define TW_STATUS_EXPECTED_BITS                0x00002000
286 #define TW_STATUS_UNEXPECTED_BITS              0x00F00000
287 #define TW_STATUS_VALID_INTERRUPT              0x00DF0000
288
289 /* PCI related defines */
290 #define TW_PCI_CLEAR_PARITY_ERRORS 0xc100
291 #define TW_PCI_CLEAR_PCI_ABORT     0x2000
292
293 /* Command packet opcodes used by the driver */
294 #define TW_OP_INIT_CONNECTION   0x1
295 #define TW_OP_GET_PARAM         0x12
296 #define TW_OP_SET_PARAM         0x13
297 #define TW_OP_EXECUTE_SCSI      0x10
298 #define TW_OP_DOWNLOAD_FIRMWARE 0x16
299 #define TW_OP_RESET             0x1C
300
301 /* Asynchronous Event Notification (AEN) codes used by the driver */
302 #define TW_AEN_QUEUE_EMPTY      0x0000
303 #define TW_AEN_SOFT_RESET       0x0001
304 #define TW_AEN_SYNC_TIME_WITH_HOST 0x031
305 #define TW_AEN_SEVERITY_ERROR   0x1
306 #define TW_AEN_SEVERITY_DEBUG    0x4
307 #define TW_AEN_NOT_RETRIEVED 0x1
308 #define TW_AEN_RETRIEVED 0x2
309
310 /* Command state defines */
311 #define TW_S_INITIAL   0x1  /* Initial state */
312 #define TW_S_STARTED   0x2  /* Id in use */
313 #define TW_S_POSTED    0x4  /* Posted to the controller */
314 #define TW_S_PENDING   0x8  /* Waiting to be posted in isr */
315 #define TW_S_COMPLETED 0x10 /* Completed by isr */
316 #define TW_S_FINISHED  0x20 /* I/O completely done */
317
318 /* Compatibility defines */
319 #define TW_9000_ARCH_ID 0x5
320 #define TW_CURRENT_DRIVER_SRL 35
321 #define TW_CURRENT_DRIVER_BUILD 0
322 #define TW_CURRENT_DRIVER_BRANCH 0
323
324 /* Misc defines */
325 #define TW_9550SX_DRAIN_COMPLETED             0xFFFF
326 #define TW_SECTOR_SIZE                        512
327 #define TW_ALIGNMENT_9000                     4  /* 4 bytes */
328 #define TW_ALIGNMENT_9000_SGL                 0x3
329 #define TW_MAX_UNITS                          16
330 #define TW_MAX_UNITS_9650SE                   32
331 #define TW_INIT_MESSAGE_CREDITS               0x100
332 #define TW_INIT_COMMAND_PACKET_SIZE           0x3
333 #define TW_INIT_COMMAND_PACKET_SIZE_EXTENDED  0x6
334 #define TW_EXTENDED_INIT_CONNECT              0x2
335 #define TW_BUNDLED_FW_SAFE_TO_FLASH           0x4
336 #define TW_CTLR_FW_RECOMMENDS_FLASH           0x8
337 #define TW_CTLR_FW_COMPATIBLE                 0x2
338 #define TW_BASE_FW_SRL                        24
339 #define TW_BASE_FW_BRANCH                     0
340 #define TW_BASE_FW_BUILD                      1
341 #define TW_FW_SRL_LUNS_SUPPORTED              28
342 #define TW_Q_LENGTH                           256
343 #define TW_Q_START                            0
344 #define TW_MAX_SLOT                           32
345 #define TW_MAX_RESET_TRIES                    2
346 #define TW_MAX_CMDS_PER_LUN                   254
347 #define TW_MAX_RESPONSE_DRAIN                 256
348 #define TW_MAX_AEN_DRAIN                      255
349 #define TW_IN_RESET                           2
350 #define TW_USING_MSI                          3
351 #define TW_IN_ATTENTION_LOOP                  4
352 #define TW_MAX_SECTORS                        256
353 #define TW_AEN_WAIT_TIME                      1000
354 #define TW_IOCTL_WAIT_TIME                    (1 * HZ) /* 1 second */
355 #define TW_MAX_CDB_LEN                        16
356 #define TW_ISR_DONT_COMPLETE                  2
357 #define TW_ISR_DONT_RESULT                    3
358 #define TW_IOCTL_CHRDEV_TIMEOUT               60 /* 60 seconds */
359 #define TW_IOCTL_CHRDEV_FREE                  -1
360 #define TW_COMMAND_OFFSET                     128 /* 128 bytes */
361 #define TW_VERSION_TABLE                      0x0402
362 #define TW_TIMEKEEP_TABLE                     0x040A
363 #define TW_INFORMATION_TABLE                  0x0403
364 #define TW_PARAM_FWVER                        3
365 #define TW_PARAM_FWVER_LENGTH                 16
366 #define TW_PARAM_BIOSVER                      4
367 #define TW_PARAM_BIOSVER_LENGTH               16
368 #define TW_PARAM_PORTCOUNT                    3
369 #define TW_PARAM_PORTCOUNT_LENGTH             1
370 #define TW_MIN_SGL_LENGTH                     0x200 /* 512 bytes */
371 #define TW_MAX_SENSE_LENGTH                   256
372 #define TW_EVENT_SOURCE_AEN                   0x1000
373 #define TW_EVENT_SOURCE_COMMAND               0x1001
374 #define TW_EVENT_SOURCE_PCHIP                 0x1002
375 #define TW_EVENT_SOURCE_DRIVER                0x1003
376 #define TW_IOCTL_GET_COMPATIBILITY_INFO       0x101
377 #define TW_IOCTL_GET_LAST_EVENT               0x102
378 #define TW_IOCTL_GET_FIRST_EVENT              0x103
379 #define TW_IOCTL_GET_NEXT_EVENT               0x104
380 #define TW_IOCTL_GET_PREVIOUS_EVENT           0x105
381 #define TW_IOCTL_GET_LOCK                     0x106
382 #define TW_IOCTL_RELEASE_LOCK                 0x107
383 #define TW_IOCTL_FIRMWARE_PASS_THROUGH        0x108
384 #define TW_IOCTL_ERROR_STATUS_NOT_LOCKED      0x1001 // Not locked
385 #define TW_IOCTL_ERROR_STATUS_LOCKED          0x1002 // Already locked
386 #define TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS  0x1003 // No more events
387 #define TW_IOCTL_ERROR_STATUS_AEN_CLOBBER     0x1004 // AEN clobber occurred
388 #define TW_IOCTL_ERROR_OS_EFAULT              -EFAULT // Bad address
389 #define TW_IOCTL_ERROR_OS_EINTR               -EINTR  // Interrupted system call
390 #define TW_IOCTL_ERROR_OS_EINVAL              -EINVAL // Invalid argument
391 #define TW_IOCTL_ERROR_OS_ENOMEM              -ENOMEM // Out of memory
392 #define TW_IOCTL_ERROR_OS_ERESTARTSYS         -ERESTARTSYS // Restart system call
393 #define TW_IOCTL_ERROR_OS_EIO                 -EIO // I/O error
394 #define TW_IOCTL_ERROR_OS_ENOTTY              -ENOTTY // Not a typewriter
395 #define TW_IOCTL_ERROR_OS_ENODEV              -ENODEV // No such device
396 #define TW_ALLOCATION_LENGTH                  128
397 #define TW_SENSE_DATA_LENGTH                  18
398 #define TW_STATUS_CHECK_CONDITION             2
399 #define TW_ERROR_LOGICAL_UNIT_NOT_SUPPORTED   0x10a
400 #define TW_ERROR_UNIT_OFFLINE                 0x128
401 #define TW_MESSAGE_SOURCE_CONTROLLER_ERROR    3
402 #define TW_MESSAGE_SOURCE_CONTROLLER_EVENT    4
403 #define TW_MESSAGE_SOURCE_LINUX_DRIVER        6
404 #define TW_DRIVER TW_MESSAGE_SOURCE_LINUX_DRIVER
405 #define TW_MESSAGE_SOURCE_LINUX_OS            9
406 #define TW_OS TW_MESSAGE_SOURCE_LINUX_OS
407 #ifndef PCI_DEVICE_ID_3WARE_9000
408 #define PCI_DEVICE_ID_3WARE_9000 0x1002
409 #endif
410 #ifndef PCI_DEVICE_ID_3WARE_9550SX
411 #define PCI_DEVICE_ID_3WARE_9550SX 0x1003
412 #endif
413 #ifndef PCI_DEVICE_ID_3WARE_9650SE
414 #define PCI_DEVICE_ID_3WARE_9650SE 0x1004
415 #endif
416 #ifndef PCI_DEVICE_ID_3WARE_9690SA
417 #define PCI_DEVICE_ID_3WARE_9690SA 0x1005
418 #endif
419
420 /* Bitmask macros to eliminate bitfields */
421
422 /* opcode: 5, reserved: 3 */
423 #define TW_OPRES_IN(x,y) ((x << 5) | (y & 0x1f))
424 #define TW_OP_OUT(x) (x & 0x1f)
425
426 /* opcode: 5, sgloffset: 3 */
427 #define TW_OPSGL_IN(x,y) ((x << 5) | (y & 0x1f))
428 #define TW_SGL_OUT(x) ((x >> 5) & 0x7)
429
430 /* severity: 3, reserved: 5 */
431 #define TW_SEV_OUT(x) (x & 0x7)
432
433 /* reserved_1: 4, response_id: 8, reserved_2: 20 */
434 #define TW_RESID_OUT(x) ((x >> 4) & 0xff)
435
436 /* request_id: 12, lun: 4 */
437 #define TW_REQ_LUN_IN(lun, request_id)                  \
438         cpu_to_le16(((lun << 12) & 0xf000) | (request_id & 0xfff))
439 #define TW_LUN_OUT(lun) ((le16_to_cpu(lun) >> 12) & 0xf)
440
441 /* Macros */
442 #define TW_CONTROL_REG_ADDR(x) (x->base_addr)
443 #define TW_STATUS_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + 0x4)
444 #define TW_COMMAND_QUEUE_REG_ADDR(x) \
445         (sizeof(dma_addr_t) > 4 ? ((unsigned char __iomem *)x->base_addr + 0x20) : ((unsigned char __iomem *)x->base_addr + 0x8))
446 #define TW_COMMAND_QUEUE_REG_ADDR_LARGE(x) \
447         ((unsigned char __iomem *)x->base_addr + 0x20)
448 #define TW_RESPONSE_QUEUE_REG_ADDR(x) \
449         ((unsigned char __iomem *)x->base_addr + 0xC)
450 #define TW_RESPONSE_QUEUE_REG_ADDR_LARGE(x) \
451         ((unsigned char __iomem *)x->base_addr + 0x30)
452 #define TW_CLEAR_ALL_INTERRUPTS(x) \
453         (writel(TW_STATUS_VALID_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
454 #define TW_CLEAR_ATTENTION_INTERRUPT(x) \
455         (writel(TW_CONTROL_CLEAR_ATTENTION_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
456 #define TW_CLEAR_HOST_INTERRUPT(x) \
457         (writel(TW_CONTROL_CLEAR_HOST_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
458 #define TW_DISABLE_INTERRUPTS(x) \
459         (writel(TW_CONTROL_DISABLE_INTERRUPTS, TW_CONTROL_REG_ADDR(x)))
460 #define TW_ENABLE_AND_CLEAR_INTERRUPTS(x)                               \
461         (writel(TW_CONTROL_CLEAR_ATTENTION_INTERRUPT |                  \
462                 TW_CONTROL_UNMASK_RESPONSE_INTERRUPT |                  \
463                 TW_CONTROL_ENABLE_INTERRUPTS, TW_CONTROL_REG_ADDR(x)))
464 #define TW_MASK_COMMAND_INTERRUPT(x)                                    \
465         (writel(TW_CONTROL_MASK_COMMAND_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
466 #define TW_UNMASK_COMMAND_INTERRUPT(x)                                  \
467         (writel(TW_CONTROL_UNMASK_COMMAND_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
468 #define TW_SOFT_RESET(x) (writel(TW_CONTROL_ISSUE_SOFT_RESET |  \
469                         TW_CONTROL_CLEAR_HOST_INTERRUPT | \
470                         TW_CONTROL_CLEAR_ATTENTION_INTERRUPT | \
471                         TW_CONTROL_MASK_COMMAND_INTERRUPT | \
472                         TW_CONTROL_MASK_RESPONSE_INTERRUPT | \
473                         TW_CONTROL_CLEAR_ERROR_STATUS | \
474                         TW_CONTROL_DISABLE_INTERRUPTS, TW_CONTROL_REG_ADDR(x)))
475 #define TW_PRINTK(h,a,b,c) { \
476 if (h) \
477 printk(KERN_WARNING "3w-9xxx: scsi%d: ERROR: (0x%02X:0x%04X): %s.\n",h->host_no,a,b,c); \
478 else \
479 printk(KERN_WARNING "3w-9xxx: ERROR: (0x%02X:0x%04X): %s.\n",a,b,c); \
480 }
481 #define TW_MAX_LUNS(srl) (srl < TW_FW_SRL_LUNS_SUPPORTED ? 1 : 16)
482 #define TW_COMMAND_SIZE (sizeof(dma_addr_t) > 4 ? 5 : 4)
483 #define TW_APACHE_MAX_SGL_LENGTH (sizeof(dma_addr_t) > 4 ? 72 : 109)
484 #define TW_ESCALADE_MAX_SGL_LENGTH (sizeof(dma_addr_t) > 4 ? 41 : 62)
485 #define TW_PADDING_LENGTH (sizeof(dma_addr_t) > 4 ? 8 : 0)
486
487 #if IS_ENABLED(CONFIG_ARCH_DMA_ADDR_T_64BIT)
488 typedef __le64 twa_addr_t;
489 #define TW_CPU_TO_SGL(x) cpu_to_le64(x)
490 #else
491 typedef __le32 twa_addr_t;
492 #define TW_CPU_TO_SGL(x) cpu_to_le32(x)
493 #endif
494
495 /* Scatter Gather List Entry */
496 typedef struct TAG_TW_SG_Entry {
497         twa_addr_t      address;
498         __le32          length;
499 } __packed TW_SG_Entry;
500
501 /* Command Packet */
502 typedef struct TW_Command {
503         u8      opcode__sgloffset;
504         u8      size;
505         u8      request_id;
506         u8      unit__hostid;
507         /* Second DWORD */
508         u8      status;
509         u8      flags;
510         union {
511                 __le16  block_count;
512                 __le16  parameter_count;
513         } byte6_offset;
514         union {
515                 struct {
516                         __le32          lba;
517                         TW_SG_Entry     sgl[TW_ESCALADE_MAX_SGL_LENGTH];
518                         twa_addr_t      padding;
519                 } io;
520                 struct {
521                         TW_SG_Entry     sgl[TW_ESCALADE_MAX_SGL_LENGTH];
522                         __le32          padding;
523                         twa_addr_t      padding2;
524                 } param;
525         } byte8_offset;
526 } TW_Command;
527
528 /* Command Packet for 9000+ controllers */
529 typedef struct TAG_TW_Command_Apache {
530         u8              opcode__reserved;
531         u8              unit;
532         __le16          request_id__lunl;
533         u8              status;
534         u8              sgl_offset;
535         __le16          sgl_entries__lunh;
536         u8              cdb[16];
537         TW_SG_Entry     sg_list[TW_APACHE_MAX_SGL_LENGTH];
538         u8              padding[TW_PADDING_LENGTH];
539 } TW_Command_Apache;
540
541 /* New command packet header */
542 typedef struct TAG_TW_Command_Apache_Header {
543         unsigned char sense_data[TW_SENSE_DATA_LENGTH];
544         struct {
545                 u8      reserved[4];
546                 __le16  error;
547                 u8      padding;
548                 u8      severity__reserved;
549         } status_block;
550         unsigned char err_specific_desc[98];
551         struct {
552                 u8      size_header;
553                 u8      reserved[2];
554                 u8      size_sense;
555         } header_desc;
556 } TW_Command_Apache_Header;
557
558 /* This struct is a union of the 2 command packets */
559 typedef struct TAG_TW_Command_Full {
560         TW_Command_Apache_Header header;
561         union {
562                 TW_Command oldcommand;
563                 TW_Command_Apache newcommand;
564         } command;
565 } TW_Command_Full;
566
567 /* Initconnection structure */
568 typedef struct TAG_TW_Initconnect {
569         u8      opcode__reserved;
570         u8      size;
571         u8      request_id;
572         u8      res2;
573         u8      status;
574         u8      flags;
575         __le16  message_credits;
576         __le32  features;
577         __le16  fw_srl;
578         __le16  fw_arch_id;
579         __le16  fw_branch;
580         __le16  fw_build;
581         __le32  result;
582 } TW_Initconnect;
583
584 /* Event info structure */
585 typedef struct TAG_TW_Event
586 {
587         unsigned int sequence_id;
588         unsigned int time_stamp_sec;
589         unsigned short aen_code;
590         unsigned char severity;
591         unsigned char retrieved;
592         unsigned char repeat_count;
593         unsigned char parameter_len;
594         unsigned char parameter_data[98];
595 } TW_Event;
596
597 typedef struct TAG_TW_Ioctl_Driver_Command {
598         unsigned int control_code;
599         unsigned int status;
600         unsigned int unique_id;
601         unsigned int sequence_id;
602         unsigned int os_specific;
603         unsigned int buffer_length;
604 } TW_Ioctl_Driver_Command;
605
606 typedef struct TAG_TW_Ioctl_Apache {
607         TW_Ioctl_Driver_Command driver_command;
608         char padding[488];
609         TW_Command_Full firmware_command;
610         char data_buffer[];
611 } TW_Ioctl_Buf_Apache;
612
613 /* Lock structure for ioctl get/release lock */
614 typedef struct TAG_TW_Lock {
615         unsigned long timeout_msec;
616         unsigned long time_remaining_msec;
617         unsigned long force_flag;
618 } TW_Lock;
619
620 /* GetParam descriptor */
621 typedef struct {
622         __le16  table_id;
623         __le16  parameter_id;
624         __le16  parameter_size_bytes;
625         __le16  actual_parameter_size_bytes;
626         u8      data[];
627 } TW_Param_Apache, *PTW_Param_Apache;
628
629 /* Response queue */
630 typedef union TAG_TW_Response_Queue {
631         u32 response_id;
632         u32 value;
633 } TW_Response_Queue;
634
635 /* Compatibility information structure */
636 typedef struct TAG_TW_Compatibility_Info
637 {
638         char driver_version[32];
639         unsigned short working_srl;
640         unsigned short working_branch;
641         unsigned short working_build;
642         unsigned short driver_srl_high;
643         unsigned short driver_branch_high;
644         unsigned short driver_build_high;
645         unsigned short driver_srl_low;
646         unsigned short driver_branch_low;
647         unsigned short driver_build_low;
648         unsigned short fw_on_ctlr_srl;
649         unsigned short fw_on_ctlr_branch;
650         unsigned short fw_on_ctlr_build;
651 } TW_Compatibility_Info;
652
653 typedef struct TAG_TW_Device_Extension {
654         u32                     __iomem *base_addr;
655         unsigned long           *generic_buffer_virt[TW_Q_LENGTH];
656         dma_addr_t              generic_buffer_phys[TW_Q_LENGTH];
657         TW_Command_Full         *command_packet_virt[TW_Q_LENGTH];
658         dma_addr_t              command_packet_phys[TW_Q_LENGTH];
659         struct pci_dev          *tw_pci_dev;
660         struct scsi_cmnd        *srb[TW_Q_LENGTH];
661         unsigned char           free_queue[TW_Q_LENGTH];
662         unsigned char           free_head;
663         unsigned char           free_tail;
664         unsigned char           pending_queue[TW_Q_LENGTH];
665         unsigned char           pending_head;
666         unsigned char           pending_tail;
667         int                     state[TW_Q_LENGTH];
668         unsigned int            posted_request_count;
669         unsigned int            max_posted_request_count;
670         unsigned int            pending_request_count;
671         unsigned int            max_pending_request_count;
672         unsigned int            max_sgl_entries;
673         unsigned int            sgl_entries;
674         unsigned int            num_resets;
675         unsigned int            sector_count;
676         unsigned int            max_sector_count;
677         unsigned int            aen_count;
678         struct Scsi_Host        *host;
679         long                    flags;
680         int                     reset_print;
681         TW_Event                *event_queue[TW_Q_LENGTH];
682         unsigned char           error_index;
683         unsigned char           event_queue_wrapped;
684         unsigned int            error_sequence_id;
685         int                     ioctl_sem_lock;
686         ktime_t                 ioctl_time;
687         int                     chrdev_request_id;
688         wait_queue_head_t       ioctl_wqueue;
689         struct mutex            ioctl_lock;
690         char                    aen_clobber;
691         TW_Compatibility_Info   tw_compat_info;
692 } TW_Device_Extension;
693
694 #endif /* _3W_9XXX_H */
695