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1da177e4 LT |
1 | /* |
2 | * u14-34f.c - Low-level driver for UltraStor 14F/34F SCSI host adapters. | |
3 | * | |
4 | * 03 Jun 2003 Rev. 8.10 for linux-2.5.70 | |
5 | * + Update for new IRQ API. | |
6 | * + Use "goto" when appropriate. | |
7 | * + Drop u14-34f.h. | |
8 | * + Update for new module_param API. | |
9 | * + Module parameters can now be specified only in the | |
10 | * same format as the kernel boot options. | |
11 | * | |
12 | * boot option old module param | |
13 | * ----------- ------------------ | |
14 | * addr,... io_port=addr,... | |
15 | * lc:[y|n] linked_comm=[1|0] | |
16 | * mq:xx max_queue_depth=xx | |
17 | * tm:[0|1|2] tag_mode=[0|1|2] | |
18 | * et:[y|n] ext_tran=[1|0] | |
19 | * of:[y|n] have_old_firmware=[1|0] | |
20 | * | |
21 | * A valid example using the new parameter format is: | |
22 | * modprobe u14-34f "u14-34f=0x340,0x330,lc:y,tm:0,mq:4" | |
23 | * | |
24 | * which is equivalent to the old format: | |
25 | * modprobe u14-34f io_port=0x340,0x330 linked_comm=1 tag_mode=0 \ | |
26 | * max_queue_depth=4 | |
27 | * | |
28 | * With actual module code, u14-34f and u14_34f are equivalent | |
29 | * as module parameter names. | |
30 | * | |
31 | * 12 Feb 2003 Rev. 8.04 for linux 2.5.60 | |
32 | * + Release irq before calling scsi_register. | |
33 | * | |
34 | * 12 Nov 2002 Rev. 8.02 for linux 2.5.47 | |
35 | * + Release driver_lock before calling scsi_register. | |
36 | * | |
37 | * 11 Nov 2002 Rev. 8.01 for linux 2.5.47 | |
38 | * + Fixed bios_param and scsicam_bios_param calling parameters. | |
39 | * | |
40 | * 28 Oct 2002 Rev. 8.00 for linux 2.5.44-ac4 | |
41 | * + Use new tcq and adjust_queue_depth api. | |
42 | * + New command line option (tm:[0-2]) to choose the type of tags: | |
43 | * 0 -> disable tagging ; 1 -> simple tags ; 2 -> ordered tags. | |
44 | * Default is tm:0 (tagged commands disabled). | |
45 | * For compatibility the "tc:" option is an alias of the "tm:" | |
46 | * option; tc:n is equivalent to tm:0 and tc:y is equivalent to | |
47 | * tm:1. | |
48 | * | |
49 | * 10 Oct 2002 Rev. 7.70 for linux 2.5.42 | |
50 | * + Foreport from revision 6.70. | |
51 | * | |
52 | * 25 Jun 2002 Rev. 6.70 for linux 2.4.19 | |
53 | * + Fixed endian-ness problem due to bitfields. | |
54 | * | |
55 | * 21 Feb 2002 Rev. 6.52 for linux 2.4.18 | |
56 | * + Backport from rev. 7.22 (use io_request_lock). | |
57 | * | |
58 | * 20 Feb 2002 Rev. 7.22 for linux 2.5.5 | |
59 | * + Remove any reference to virt_to_bus(). | |
60 | * + Fix pio hang while detecting multiple HBAs. | |
61 | * | |
62 | * 01 Jan 2002 Rev. 7.20 for linux 2.5.1 | |
63 | * + Use the dynamic DMA mapping API. | |
64 | * | |
65 | * 19 Dec 2001 Rev. 7.02 for linux 2.5.1 | |
66 | * + Use SCpnt->sc_data_direction if set. | |
67 | * + Use sglist.page instead of sglist.address. | |
68 | * | |
69 | * 11 Dec 2001 Rev. 7.00 for linux 2.5.1 | |
70 | * + Use host->host_lock instead of io_request_lock. | |
71 | * | |
72 | * 1 May 2001 Rev. 6.05 for linux 2.4.4 | |
73 | * + Fix data transfer direction for opcode SEND_CUE_SHEET (0x5d) | |
74 | * | |
75 | * 25 Jan 2001 Rev. 6.03 for linux 2.4.0 | |
76 | * + "check_region" call replaced by "request_region". | |
77 | * | |
78 | * 22 Nov 2000 Rev. 6.02 for linux 2.4.0-test11 | |
79 | * + Removed old scsi error handling support. | |
80 | * + The obsolete boot option flag eh:n is silently ignored. | |
81 | * + Removed error messages while a disk drive is powered up at | |
82 | * boot time. | |
83 | * + Improved boot messages: all tagged capable device are | |
84 | * indicated as "tagged". | |
85 | * | |
86 | * 16 Sep 1999 Rev. 5.11 for linux 2.2.12 and 2.3.18 | |
87 | * + Updated to the new __setup interface for boot command line options. | |
88 | * + When loaded as a module, accepts the new parameter boot_options | |
89 | * which value is a string with the same format of the kernel boot | |
90 | * command line options. A valid example is: | |
91 | * modprobe u14-34f 'boot_options="0x230,0x340,lc:y,mq:4"' | |
92 | * | |
93 | * 22 Jul 1999 Rev. 5.00 for linux 2.2.10 and 2.3.11 | |
94 | * + Removed pre-2.2 source code compatibility. | |
95 | * | |
96 | * 26 Jul 1998 Rev. 4.33 for linux 2.0.35 and 2.1.111 | |
97 | * Added command line option (et:[y|n]) to use the existing | |
98 | * translation (returned by scsicam_bios_param) as disk geometry. | |
99 | * The default is et:n, which uses the disk geometry jumpered | |
100 | * on the board. | |
101 | * The default value et:n is compatible with all previous revisions | |
102 | * of this driver. | |
103 | * | |
104 | * 28 May 1998 Rev. 4.32 for linux 2.0.33 and 2.1.104 | |
105 | * Increased busy timeout from 10 msec. to 200 msec. while | |
106 | * processing interrupts. | |
107 | * | |
108 | * 18 May 1998 Rev. 4.31 for linux 2.0.33 and 2.1.102 | |
109 | * Improved abort handling during the eh recovery process. | |
110 | * | |
111 | * 13 May 1998 Rev. 4.30 for linux 2.0.33 and 2.1.101 | |
112 | * The driver is now fully SMP safe, including the | |
113 | * abort and reset routines. | |
114 | * Added command line options (eh:[y|n]) to choose between | |
115 | * new_eh_code and the old scsi code. | |
116 | * If linux version >= 2.1.101 the default is eh:y, while the eh | |
117 | * option is ignored for previous releases and the old scsi code | |
118 | * is used. | |
119 | * | |
120 | * 18 Apr 1998 Rev. 4.20 for linux 2.0.33 and 2.1.97 | |
121 | * Reworked interrupt handler. | |
122 | * | |
123 | * 11 Apr 1998 rev. 4.05 for linux 2.0.33 and 2.1.95 | |
124 | * Major reliability improvement: when a batch with overlapping | |
125 | * requests is detected, requests are queued one at a time | |
126 | * eliminating any possible board or drive reordering. | |
127 | * | |
128 | * 10 Apr 1998 rev. 4.04 for linux 2.0.33 and 2.1.95 | |
129 | * Improved SMP support (if linux version >= 2.1.95). | |
130 | * | |
131 | * 9 Apr 1998 rev. 4.03 for linux 2.0.33 and 2.1.94 | |
132 | * Performance improvement: when sequential i/o is detected, | |
133 | * always use direct sort instead of reverse sort. | |
134 | * | |
135 | * 4 Apr 1998 rev. 4.02 for linux 2.0.33 and 2.1.92 | |
136 | * io_port is now unsigned long. | |
137 | * | |
138 | * 17 Mar 1998 rev. 4.01 for linux 2.0.33 and 2.1.88 | |
139 | * Use new scsi error handling code (if linux version >= 2.1.88). | |
140 | * Use new interrupt code. | |
141 | * | |
142 | * 12 Sep 1997 rev. 3.11 for linux 2.0.30 and 2.1.55 | |
143 | * Use of udelay inside the wait loops to avoid timeout | |
144 | * problems with fast cpus. | |
145 | * Removed check about useless calls to the interrupt service | |
146 | * routine (reported on SMP systems only). | |
147 | * At initialization time "sorted/unsorted" is displayed instead | |
148 | * of "linked/unlinked" to reinforce the fact that "linking" is | |
149 | * nothing but "elevator sorting" in the actual implementation. | |
150 | * | |
151 | * 17 May 1997 rev. 3.10 for linux 2.0.30 and 2.1.38 | |
152 | * Use of serial_number_at_timeout in abort and reset processing. | |
153 | * Use of the __initfunc and __initdata macro in setup code. | |
154 | * Minor cleanups in the list_statistics code. | |
155 | * | |
156 | * 24 Feb 1997 rev. 3.00 for linux 2.0.29 and 2.1.26 | |
157 | * When loading as a module, parameter passing is now supported | |
158 | * both in 2.0 and in 2.1 style. | |
159 | * Fixed data transfer direction for some SCSI opcodes. | |
160 | * Immediate acknowledge to request sense commands. | |
161 | * Linked commands to each disk device are now reordered by elevator | |
162 | * sorting. Rare cases in which reordering of write requests could | |
163 | * cause wrong results are managed. | |
164 | * | |
165 | * 18 Jan 1997 rev. 2.60 for linux 2.1.21 and 2.0.28 | |
166 | * Added command line options to enable/disable linked commands | |
167 | * (lc:[y|n]), old firmware support (of:[y|n]) and to set the max | |
168 | * queue depth (mq:xx). Default is "u14-34f=lc:n,of:n,mq:8". | |
169 | * Improved command linking. | |
170 | * | |
171 | * 8 Jan 1997 rev. 2.50 for linux 2.1.20 and 2.0.27 | |
172 | * Added linked command support. | |
173 | * | |
174 | * 3 Dec 1996 rev. 2.40 for linux 2.1.14 and 2.0.27 | |
175 | * Added queue depth adjustment. | |
176 | * | |
177 | * 22 Nov 1996 rev. 2.30 for linux 2.1.12 and 2.0.26 | |
178 | * The list of i/o ports to be probed can be overwritten by the | |
179 | * "u14-34f=port0,port1,...." boot command line option. | |
180 | * Scatter/gather lists are now allocated by a number of kmalloc | |
181 | * calls, in order to avoid the previous size limit of 64Kb. | |
182 | * | |
183 | * 16 Nov 1996 rev. 2.20 for linux 2.1.10 and 2.0.25 | |
184 | * Added multichannel support. | |
185 | * | |
186 | * 27 Sep 1996 rev. 2.12 for linux 2.1.0 | |
187 | * Portability cleanups (virtual/bus addressing, little/big endian | |
188 | * support). | |
189 | * | |
190 | * 09 Jul 1996 rev. 2.11 for linux 2.0.4 | |
191 | * "Data over/under-run" no longer implies a redo on all targets. | |
192 | * Number of internal retries is now limited. | |
193 | * | |
194 | * 16 Apr 1996 rev. 2.10 for linux 1.3.90 | |
195 | * New argument "reset_flags" to the reset routine. | |
196 | * | |
197 | * 21 Jul 1995 rev. 2.02 for linux 1.3.11 | |
198 | * Fixed Data Transfer Direction for some SCSI commands. | |
199 | * | |
200 | * 13 Jun 1995 rev. 2.01 for linux 1.2.10 | |
201 | * HAVE_OLD_UX4F_FIRMWARE should be defined for U34F boards when | |
202 | * the firmware prom is not the latest one (28008-006). | |
203 | * | |
204 | * 11 Mar 1995 rev. 2.00 for linux 1.2.0 | |
205 | * Fixed a bug which prevented media change detection for removable | |
206 | * disk drives. | |
207 | * | |
208 | * 23 Feb 1995 rev. 1.18 for linux 1.1.94 | |
209 | * Added a check for scsi_register returning NULL. | |
210 | * | |
211 | * 11 Feb 1995 rev. 1.17 for linux 1.1.91 | |
212 | * U14F qualified to run with 32 sglists. | |
213 | * Now DEBUG_RESET is disabled by default. | |
214 | * | |
215 | * 9 Feb 1995 rev. 1.16 for linux 1.1.90 | |
216 | * Use host->wish_block instead of host->block. | |
217 | * | |
218 | * 8 Feb 1995 rev. 1.15 for linux 1.1.89 | |
219 | * Cleared target_time_out counter while performing a reset. | |
220 | * | |
221 | * 28 Jan 1995 rev. 1.14 for linux 1.1.86 | |
222 | * Added module support. | |
223 | * Log and do a retry when a disk drive returns a target status | |
224 | * different from zero on a recovered error. | |
225 | * Auto detects if U14F boards have an old firmware revision. | |
226 | * Max number of scatter/gather lists set to 16 for all boards | |
227 | * (most installation run fine using 33 sglists, while other | |
228 | * has problems when using more than 16). | |
229 | * | |
230 | * 16 Jan 1995 rev. 1.13 for linux 1.1.81 | |
231 | * Display a message if check_region detects a port address | |
232 | * already in use. | |
233 | * | |
234 | * 15 Dec 1994 rev. 1.12 for linux 1.1.74 | |
235 | * The host->block flag is set for all the detected ISA boards. | |
236 | * | |
237 | * 30 Nov 1994 rev. 1.11 for linux 1.1.68 | |
238 | * Redo i/o on target status CHECK_CONDITION for TYPE_DISK only. | |
239 | * Added optional support for using a single board at a time. | |
240 | * | |
241 | * 14 Nov 1994 rev. 1.10 for linux 1.1.63 | |
242 | * | |
243 | * 28 Oct 1994 rev. 1.09 for linux 1.1.58 Final BETA release. | |
244 | * 16 Jul 1994 rev. 1.00 for linux 1.1.29 Initial ALPHA release. | |
245 | * | |
246 | * This driver is a total replacement of the original UltraStor | |
247 | * scsi driver, but it supports ONLY the 14F and 34F boards. | |
248 | * It can be configured in the same kernel in which the original | |
249 | * ultrastor driver is configured to allow the original U24F | |
250 | * support. | |
251 | * | |
252 | * Multiple U14F and/or U34F host adapters are supported. | |
253 | * | |
254 | * Copyright (C) 1994-2003 Dario Ballabio (ballabio_dario@emc.com) | |
255 | * | |
256 | * Alternate email: dario.ballabio@inwind.it, dario.ballabio@tiscalinet.it | |
257 | * | |
258 | * Redistribution and use in source and binary forms, with or without | |
259 | * modification, are permitted provided that redistributions of source | |
260 | * code retain the above copyright notice and this comment without | |
261 | * modification. | |
262 | * | |
263 | * WARNING: if your 14/34F board has an old firmware revision (see below) | |
264 | * you must change "#undef" into "#define" in the following | |
265 | * statement. | |
266 | */ | |
267 | #undef HAVE_OLD_UX4F_FIRMWARE | |
268 | /* | |
269 | * The UltraStor 14F, 24F, and 34F are a family of intelligent, high | |
270 | * performance SCSI-2 host adapters. | |
271 | * Here is the scoop on the various models: | |
272 | * | |
273 | * 14F - ISA first-party DMA HA with floppy support and WD1003 emulation. | |
274 | * 24F - EISA Bus Master HA with floppy support and WD1003 emulation. | |
275 | * 34F - VESA Local-Bus Bus Master HA (no WD1003 emulation). | |
276 | * | |
277 | * This code has been tested with up to two U14F boards, using both | |
278 | * firmware 28004-005/38004-004 (BIOS rev. 2.00) and the latest firmware | |
279 | * 28004-006/38004-005 (BIOS rev. 2.01). | |
280 | * | |
281 | * The latest firmware is required in order to get reliable operations when | |
282 | * clustering is enabled. ENABLE_CLUSTERING provides a performance increase | |
283 | * up to 50% on sequential access. | |
284 | * | |
d0be4a7d | 285 | * Since the struct scsi_host_template structure is shared among all 14F and 34F, |
1da177e4 LT |
286 | * the last setting of use_clustering is in effect for all of these boards. |
287 | * | |
288 | * Here a sample configuration using two U14F boards: | |
289 | * | |
290 | U14F0: ISA 0x330, BIOS 0xc8000, IRQ 11, DMA 5, SG 32, MB 16, of:n, lc:y, mq:8. | |
291 | U14F1: ISA 0x340, BIOS 0x00000, IRQ 10, DMA 6, SG 32, MB 16, of:n, lc:y, mq:8. | |
292 | * | |
293 | * The boot controller must have its BIOS enabled, while other boards can | |
294 | * have their BIOS disabled, or enabled to an higher address. | |
295 | * Boards are named Ux4F0, Ux4F1..., according to the port address order in | |
296 | * the io_port[] array. | |
297 | * | |
298 | * The following facts are based on real testing results (not on | |
299 | * documentation) on the above U14F board. | |
300 | * | |
301 | * - The U14F board should be jumpered for bus on time less or equal to 7 | |
302 | * microseconds, while the default is 11 microseconds. This is order to | |
303 | * get acceptable performance while using floppy drive and hard disk | |
304 | * together. The jumpering for 7 microseconds is: JP13 pin 15-16, | |
305 | * JP14 pin 7-8 and pin 9-10. | |
306 | * The reduction has a little impact on scsi performance. | |
307 | * | |
308 | * - If scsi bus length exceeds 3m., the scsi bus speed needs to be reduced | |
309 | * from 10Mhz to 5Mhz (do this by inserting a jumper on JP13 pin 7-8). | |
310 | * | |
311 | * - If U14F on board firmware is older than 28004-006/38004-005, | |
312 | * the U14F board is unable to provide reliable operations if the scsi | |
313 | * request length exceeds 16Kbyte. When this length is exceeded the | |
314 | * behavior is: | |
315 | * - adapter_status equal 0x96 or 0xa3 or 0x93 or 0x94; | |
316 | * - adapter_status equal 0 and target_status equal 2 on for all targets | |
317 | * in the next operation following the reset. | |
318 | * This sequence takes a long time (>3 seconds), so in the meantime | |
319 | * the SD_TIMEOUT in sd.c could expire giving rise to scsi aborts | |
320 | * (SD_TIMEOUT has been increased from 3 to 6 seconds in 1.1.31). | |
321 | * Because of this I had to DISABLE_CLUSTERING and to work around the | |
322 | * bus reset in the interrupt service routine, returning DID_BUS_BUSY | |
323 | * so that the operations are retried without complains from the scsi.c | |
324 | * code. | |
325 | * Any reset of the scsi bus is going to kill tape operations, since | |
326 | * no retry is allowed for tapes. Bus resets are more likely when the | |
327 | * scsi bus is under heavy load. | |
328 | * Requests using scatter/gather have a maximum length of 16 x 1024 bytes | |
329 | * when DISABLE_CLUSTERING is in effect, but unscattered requests could be | |
330 | * larger than 16Kbyte. | |
331 | * | |
332 | * The new firmware has fixed all the above problems. | |
333 | * | |
334 | * For U34F boards the latest bios prom is 38008-002 (BIOS rev. 2.01), | |
335 | * the latest firmware prom is 28008-006. Older firmware 28008-005 has | |
336 | * problems when using more than 16 scatter/gather lists. | |
337 | * | |
338 | * The list of i/o ports to be probed can be totally replaced by the | |
339 | * boot command line option: "u14-34f=port0,port1,port2,...", where the | |
340 | * port0, port1... arguments are ISA/VESA addresses to be probed. | |
341 | * For example using "u14-34f=0x230,0x340", the driver probes only the two | |
342 | * addresses 0x230 and 0x340 in this order; "u14-34f=0" totally disables | |
343 | * this driver. | |
344 | * | |
345 | * After the optional list of detection probes, other possible command line | |
346 | * options are: | |
347 | * | |
348 | * et:y use disk geometry returned by scsicam_bios_param; | |
349 | * et:n use disk geometry jumpered on the board; | |
350 | * lc:y enables linked commands; | |
351 | * lc:n disables linked commands; | |
352 | * tm:0 disables tagged commands (same as tc:n); | |
353 | * tm:1 use simple queue tags (same as tc:y); | |
354 | * tm:2 use ordered queue tags (same as tc:2); | |
355 | * of:y enables old firmware support; | |
356 | * of:n disables old firmware support; | |
357 | * mq:xx set the max queue depth to the value xx (2 <= xx <= 8). | |
358 | * | |
359 | * The default value is: "u14-34f=lc:n,of:n,mq:8,tm:0,et:n". | |
360 | * An example using the list of detection probes could be: | |
361 | * "u14-34f=0x230,0x340,lc:y,tm:2,of:n,mq:4,et:n". | |
362 | * | |
363 | * When loading as a module, parameters can be specified as well. | |
364 | * The above example would be (use 1 in place of y and 0 in place of n): | |
365 | * | |
366 | * modprobe u14-34f io_port=0x230,0x340 linked_comm=1 have_old_firmware=0 \ | |
367 | * max_queue_depth=4 ext_tran=0 tag_mode=2 | |
368 | * | |
369 | * ---------------------------------------------------------------------------- | |
370 | * In this implementation, linked commands are designed to work with any DISK | |
371 | * or CD-ROM, since this linking has only the intent of clustering (time-wise) | |
372 | * and reordering by elevator sorting commands directed to each device, | |
373 | * without any relation with the actual SCSI protocol between the controller | |
374 | * and the device. | |
375 | * If Q is the queue depth reported at boot time for each device (also named | |
376 | * cmds/lun) and Q > 2, whenever there is already an active command to the | |
377 | * device all other commands to the same device (up to Q-1) are kept waiting | |
378 | * in the elevator sorting queue. When the active command completes, the | |
379 | * commands in this queue are sorted by sector address. The sort is chosen | |
380 | * between increasing or decreasing by minimizing the seek distance between | |
381 | * the sector of the commands just completed and the sector of the first | |
382 | * command in the list to be sorted. | |
383 | * Trivial math assures that the unsorted average seek distance when doing | |
384 | * random seeks over S sectors is S/3. | |
385 | * When (Q-1) requests are uniformly distributed over S sectors, the average | |
386 | * distance between two adjacent requests is S/((Q-1) + 1), so the sorted | |
387 | * average seek distance for (Q-1) random requests over S sectors is S/Q. | |
388 | * The elevator sorting hence divides the seek distance by a factor Q/3. | |
389 | * The above pure geometric remarks are valid in all cases and the | |
390 | * driver effectively reduces the seek distance by the predicted factor | |
391 | * when there are Q concurrent read i/o operations on the device, but this | |
392 | * does not necessarily results in a noticeable performance improvement: | |
393 | * your mileage may vary.... | |
394 | * | |
395 | * Note: command reordering inside a batch of queued commands could cause | |
396 | * wrong results only if there is at least one write request and the | |
397 | * intersection (sector-wise) of all requests is not empty. | |
398 | * When the driver detects a batch including overlapping requests | |
399 | * (a really rare event) strict serial (pid) order is enforced. | |
400 | * ---------------------------------------------------------------------------- | |
401 | * | |
402 | * The boards are named Ux4F0, Ux4F1,... according to the detection order. | |
403 | * | |
404 | * In order to support multiple ISA boards in a reliable way, | |
405 | * the driver sets host->wish_block = TRUE for all ISA boards. | |
406 | */ | |
407 | ||
1da177e4 LT |
408 | #include <linux/string.h> |
409 | #include <linux/kernel.h> | |
410 | #include <linux/ioport.h> | |
411 | #include <linux/delay.h> | |
412 | #include <asm/io.h> | |
413 | #include <asm/system.h> | |
414 | #include <asm/byteorder.h> | |
415 | #include <linux/proc_fs.h> | |
416 | #include <linux/blkdev.h> | |
417 | #include <linux/interrupt.h> | |
418 | #include <linux/stat.h> | |
419 | #include <linux/pci.h> | |
420 | #include <linux/init.h> | |
421 | #include <linux/ctype.h> | |
422 | #include <linux/spinlock.h> | |
423 | #include <asm/dma.h> | |
424 | #include <asm/irq.h> | |
425 | ||
426 | #include <scsi/scsi.h> | |
427 | #include <scsi/scsi_cmnd.h> | |
428 | #include <scsi/scsi_device.h> | |
429 | #include <scsi/scsi_host.h> | |
430 | #include <scsi/scsi_tcq.h> | |
431 | #include <scsi/scsicam.h> | |
432 | ||
433 | static int u14_34f_detect(struct scsi_host_template *); | |
434 | static int u14_34f_release(struct Scsi_Host *); | |
435 | static int u14_34f_queuecommand(struct scsi_cmnd *, void (*done)(struct scsi_cmnd *)); | |
436 | static int u14_34f_eh_abort(struct scsi_cmnd *); | |
437 | static int u14_34f_eh_host_reset(struct scsi_cmnd *); | |
438 | static int u14_34f_bios_param(struct scsi_device *, struct block_device *, | |
439 | sector_t, int *); | |
440 | static int u14_34f_slave_configure(struct scsi_device *); | |
441 | ||
442 | static struct scsi_host_template driver_template = { | |
443 | .name = "UltraStor 14F/34F rev. 8.10.00 ", | |
444 | .detect = u14_34f_detect, | |
445 | .release = u14_34f_release, | |
446 | .queuecommand = u14_34f_queuecommand, | |
447 | .eh_abort_handler = u14_34f_eh_abort, | |
1da177e4 LT |
448 | .eh_host_reset_handler = u14_34f_eh_host_reset, |
449 | .bios_param = u14_34f_bios_param, | |
450 | .slave_configure = u14_34f_slave_configure, | |
451 | .this_id = 7, | |
452 | .unchecked_isa_dma = 1, | |
7530c20f | 453 | .use_clustering = ENABLE_CLUSTERING, |
1da177e4 LT |
454 | }; |
455 | ||
456 | #if !defined(__BIG_ENDIAN_BITFIELD) && !defined(__LITTLE_ENDIAN_BITFIELD) | |
457 | #error "Adjust your <asm/byteorder.h> defines" | |
458 | #endif | |
459 | ||
460 | /* Values for the PRODUCT_ID ports for the 14/34F */ | |
461 | #define PRODUCT_ID1 0x56 | |
462 | #define PRODUCT_ID2 0x40 /* NOTE: Only upper nibble is used */ | |
463 | ||
464 | /* Subversion values */ | |
465 | #define ISA 0 | |
466 | #define ESA 1 | |
467 | ||
468 | #define OP_HOST_ADAPTER 0x1 | |
469 | #define OP_SCSI 0x2 | |
470 | #define OP_RESET 0x4 | |
471 | #define DTD_SCSI 0x0 | |
472 | #define DTD_IN 0x1 | |
473 | #define DTD_OUT 0x2 | |
474 | #define DTD_NONE 0x3 | |
475 | #define HA_CMD_INQUIRY 0x1 | |
476 | #define HA_CMD_SELF_DIAG 0x2 | |
477 | #define HA_CMD_READ_BUFF 0x3 | |
478 | #define HA_CMD_WRITE_BUFF 0x4 | |
479 | ||
480 | #undef DEBUG_LINKED_COMMANDS | |
481 | #undef DEBUG_DETECT | |
482 | #undef DEBUG_INTERRUPT | |
483 | #undef DEBUG_RESET | |
484 | #undef DEBUG_GENERATE_ERRORS | |
485 | #undef DEBUG_GENERATE_ABORTS | |
486 | #undef DEBUG_GEOMETRY | |
487 | ||
488 | #define MAX_ISA 3 | |
489 | #define MAX_VESA 1 | |
490 | #define MAX_EISA 0 | |
491 | #define MAX_PCI 0 | |
492 | #define MAX_BOARDS (MAX_ISA + MAX_VESA + MAX_EISA + MAX_PCI) | |
493 | #define MAX_CHANNEL 1 | |
494 | #define MAX_LUN 8 | |
495 | #define MAX_TARGET 8 | |
496 | #define MAX_MAILBOXES 16 | |
497 | #define MAX_SGLIST 32 | |
498 | #define MAX_SAFE_SGLIST 16 | |
499 | #define MAX_INTERNAL_RETRIES 64 | |
500 | #define MAX_CMD_PER_LUN 2 | |
501 | #define MAX_TAGGED_CMD_PER_LUN (MAX_MAILBOXES - MAX_CMD_PER_LUN) | |
502 | ||
503 | #define SKIP ULONG_MAX | |
504 | #define FALSE 0 | |
505 | #define TRUE 1 | |
506 | #define FREE 0 | |
507 | #define IN_USE 1 | |
508 | #define LOCKED 2 | |
509 | #define IN_RESET 3 | |
510 | #define IGNORE 4 | |
511 | #define READY 5 | |
512 | #define ABORTING 6 | |
513 | #define NO_DMA 0xff | |
514 | #define MAXLOOP 10000 | |
515 | #define TAG_DISABLED 0 | |
516 | #define TAG_SIMPLE 1 | |
517 | #define TAG_ORDERED 2 | |
518 | ||
519 | #define REG_LCL_MASK 0 | |
520 | #define REG_LCL_INTR 1 | |
521 | #define REG_SYS_MASK 2 | |
522 | #define REG_SYS_INTR 3 | |
523 | #define REG_PRODUCT_ID1 4 | |
524 | #define REG_PRODUCT_ID2 5 | |
525 | #define REG_CONFIG1 6 | |
526 | #define REG_CONFIG2 7 | |
527 | #define REG_OGM 8 | |
528 | #define REG_ICM 12 | |
529 | #define REGION_SIZE 13UL | |
530 | #define BSY_ASSERTED 0x01 | |
531 | #define IRQ_ASSERTED 0x01 | |
532 | #define CMD_RESET 0xc0 | |
533 | #define CMD_OGM_INTR 0x01 | |
534 | #define CMD_CLR_INTR 0x01 | |
535 | #define CMD_ENA_INTR 0x81 | |
536 | #define ASOK 0x00 | |
537 | #define ASST 0x91 | |
538 | ||
539 | #define YESNO(a) ((a) ? 'y' : 'n') | |
540 | #define TLDEV(type) ((type) == TYPE_DISK || (type) == TYPE_ROM) | |
541 | ||
542 | #define PACKED __attribute__((packed)) | |
543 | ||
544 | struct sg_list { | |
545 | unsigned int address; /* Segment Address */ | |
546 | unsigned int num_bytes; /* Segment Length */ | |
547 | }; | |
548 | ||
549 | /* MailBox SCSI Command Packet */ | |
550 | struct mscp { | |
551 | ||
552 | #if defined(__BIG_ENDIAN_BITFIELD) | |
553 | unsigned char sg:1, ca:1, dcn:1, xdir:2, opcode:3; | |
554 | unsigned char lun: 3, channel:2, target:3; | |
555 | #else | |
556 | unsigned char opcode: 3, /* type of command */ | |
557 | xdir: 2, /* data transfer direction */ | |
558 | dcn: 1, /* disable disconnect */ | |
559 | ca: 1, /* use cache (if available) */ | |
560 | sg: 1; /* scatter/gather operation */ | |
561 | unsigned char target: 3, /* SCSI target id */ | |
562 | channel: 2, /* SCSI channel number */ | |
563 | lun: 3; /* SCSI logical unit number */ | |
564 | #endif | |
565 | ||
566 | unsigned int data_address PACKED; /* transfer data pointer */ | |
567 | unsigned int data_len PACKED; /* length in bytes */ | |
568 | unsigned int link_address PACKED; /* for linking command chains */ | |
569 | unsigned char clink_id; /* identifies command in chain */ | |
570 | unsigned char use_sg; /* (if sg is set) 8 bytes per list */ | |
571 | unsigned char sense_len; | |
572 | unsigned char cdb_len; /* 6, 10, or 12 */ | |
573 | unsigned char cdb[12]; /* SCSI Command Descriptor Block */ | |
574 | unsigned char adapter_status; /* non-zero indicates HA error */ | |
575 | unsigned char target_status; /* non-zero indicates target error */ | |
576 | unsigned int sense_addr PACKED; | |
577 | ||
578 | /* Additional fields begin here. */ | |
579 | struct scsi_cmnd *SCpnt; | |
580 | unsigned int cpp_index; /* cp index */ | |
581 | ||
582 | /* All the cp structure is zero filled by queuecommand except the | |
583 | following CP_TAIL_SIZE bytes, initialized by detect */ | |
584 | dma_addr_t cp_dma_addr; /* dma handle for this cp structure */ | |
585 | struct sg_list *sglist; /* pointer to the allocated SG list */ | |
586 | }; | |
587 | ||
588 | #define CP_TAIL_SIZE (sizeof(struct sglist *) + sizeof(dma_addr_t)) | |
589 | ||
590 | struct hostdata { | |
591 | struct mscp cp[MAX_MAILBOXES]; /* Mailboxes for this board */ | |
592 | unsigned int cp_stat[MAX_MAILBOXES]; /* FREE, IN_USE, LOCKED, IN_RESET */ | |
593 | unsigned int last_cp_used; /* Index of last mailbox used */ | |
594 | unsigned int iocount; /* Total i/o done for this board */ | |
595 | int board_number; /* Number of this board */ | |
596 | char board_name[16]; /* Name of this board */ | |
597 | int in_reset; /* True if board is doing a reset */ | |
598 | int target_to[MAX_TARGET][MAX_CHANNEL]; /* N. of timeout errors on target */ | |
599 | int target_redo[MAX_TARGET][MAX_CHANNEL]; /* If TRUE redo i/o on target */ | |
600 | unsigned int retries; /* Number of internal retries */ | |
601 | unsigned long last_retried_pid; /* Pid of last retried command */ | |
602 | unsigned char subversion; /* Bus type, either ISA or ESA */ | |
603 | struct pci_dev *pdev; /* Always NULL */ | |
604 | unsigned char heads; | |
605 | unsigned char sectors; | |
606 | char board_id[256]; /* data from INQUIRY on this board */ | |
607 | }; | |
608 | ||
609 | static struct Scsi_Host *sh[MAX_BOARDS + 1]; | |
610 | static const char *driver_name = "Ux4F"; | |
611 | static char sha[MAX_BOARDS]; | |
612 | static DEFINE_SPINLOCK(driver_lock); | |
613 | ||
614 | /* Initialize num_boards so that ihdlr can work while detect is in progress */ | |
615 | static unsigned int num_boards = MAX_BOARDS; | |
616 | ||
617 | static unsigned long io_port[] = { | |
618 | ||
619 | /* Space for MAX_INT_PARAM ports usable while loading as a module */ | |
620 | SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, | |
621 | SKIP, SKIP, | |
622 | ||
623 | /* Possible ISA/VESA ports */ | |
624 | 0x330, 0x340, 0x230, 0x240, 0x210, 0x130, 0x140, | |
625 | ||
626 | /* End of list */ | |
627 | 0x0 | |
628 | }; | |
629 | ||
630 | #define HD(board) ((struct hostdata *) &sh[board]->hostdata) | |
631 | #define BN(board) (HD(board)->board_name) | |
632 | ||
633 | /* Device is Little Endian */ | |
634 | #define H2DEV(x) cpu_to_le32(x) | |
635 | #define DEV2H(x) le32_to_cpu(x) | |
636 | ||
7d12e780 | 637 | static irqreturn_t do_interrupt_handler(int, void *); |
1da177e4 LT |
638 | static void flush_dev(struct scsi_device *, unsigned long, unsigned int, unsigned int); |
639 | static int do_trace = FALSE; | |
640 | static int setup_done = FALSE; | |
641 | static int link_statistics; | |
642 | static int ext_tran = FALSE; | |
643 | ||
644 | #if defined(HAVE_OLD_UX4F_FIRMWARE) | |
645 | static int have_old_firmware = TRUE; | |
646 | #else | |
647 | static int have_old_firmware = FALSE; | |
648 | #endif | |
649 | ||
650 | #if defined(CONFIG_SCSI_U14_34F_TAGGED_QUEUE) | |
651 | static int tag_mode = TAG_SIMPLE; | |
652 | #else | |
653 | static int tag_mode = TAG_DISABLED; | |
654 | #endif | |
655 | ||
656 | #if defined(CONFIG_SCSI_U14_34F_LINKED_COMMANDS) | |
657 | static int linked_comm = TRUE; | |
658 | #else | |
659 | static int linked_comm = FALSE; | |
660 | #endif | |
661 | ||
662 | #if defined(CONFIG_SCSI_U14_34F_MAX_TAGS) | |
663 | static int max_queue_depth = CONFIG_SCSI_U14_34F_MAX_TAGS; | |
664 | #else | |
665 | static int max_queue_depth = MAX_CMD_PER_LUN; | |
666 | #endif | |
667 | ||
668 | #define MAX_INT_PARAM 10 | |
669 | #define MAX_BOOT_OPTIONS_SIZE 256 | |
670 | static char boot_options[MAX_BOOT_OPTIONS_SIZE]; | |
671 | ||
672 | #if defined(MODULE) | |
673 | #include <linux/module.h> | |
674 | #include <linux/moduleparam.h> | |
675 | ||
676 | module_param_string(u14_34f, boot_options, MAX_BOOT_OPTIONS_SIZE, 0); | |
677 | MODULE_PARM_DESC(u14_34f, " equivalent to the \"u14-34f=...\" kernel boot " \ | |
678 | "option." \ | |
679 | " Example: modprobe u14-34f \"u14_34f=0x340,0x330,lc:y,tm:0,mq:4\""); | |
680 | MODULE_AUTHOR("Dario Ballabio"); | |
681 | MODULE_LICENSE("GPL"); | |
682 | MODULE_DESCRIPTION("UltraStor 14F/34F SCSI Driver"); | |
683 | ||
684 | #endif | |
685 | ||
686 | static int u14_34f_slave_configure(struct scsi_device *dev) { | |
687 | int j, tqd, utqd; | |
688 | char *tag_suffix, *link_suffix; | |
689 | struct Scsi_Host *host = dev->host; | |
690 | ||
691 | j = ((struct hostdata *) host->hostdata)->board_number; | |
692 | ||
693 | utqd = MAX_CMD_PER_LUN; | |
694 | tqd = max_queue_depth; | |
695 | ||
696 | if (TLDEV(dev->type) && dev->tagged_supported) | |
697 | ||
698 | if (tag_mode == TAG_SIMPLE) { | |
699 | scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, tqd); | |
700 | tag_suffix = ", simple tags"; | |
701 | } | |
702 | else if (tag_mode == TAG_ORDERED) { | |
703 | scsi_adjust_queue_depth(dev, MSG_ORDERED_TAG, tqd); | |
704 | tag_suffix = ", ordered tags"; | |
705 | } | |
706 | else { | |
707 | scsi_adjust_queue_depth(dev, 0, tqd); | |
708 | tag_suffix = ", no tags"; | |
709 | } | |
710 | ||
711 | else if (TLDEV(dev->type) && linked_comm) { | |
712 | scsi_adjust_queue_depth(dev, 0, tqd); | |
713 | tag_suffix = ", untagged"; | |
714 | } | |
715 | ||
716 | else { | |
717 | scsi_adjust_queue_depth(dev, 0, utqd); | |
718 | tag_suffix = ""; | |
719 | } | |
720 | ||
721 | if (TLDEV(dev->type) && linked_comm && dev->queue_depth > 2) | |
722 | link_suffix = ", sorted"; | |
723 | else if (TLDEV(dev->type)) | |
724 | link_suffix = ", unsorted"; | |
725 | else | |
726 | link_suffix = ""; | |
727 | ||
017560fc | 728 | sdev_printk(KERN_INFO, dev, "cmds/lun %d%s%s.\n", |
1da177e4 LT |
729 | dev->queue_depth, link_suffix, tag_suffix); |
730 | ||
731 | return FALSE; | |
732 | } | |
733 | ||
734 | static int wait_on_busy(unsigned long iobase, unsigned int loop) { | |
735 | ||
736 | while (inb(iobase + REG_LCL_INTR) & BSY_ASSERTED) { | |
737 | udelay(1L); | |
738 | if (--loop == 0) return TRUE; | |
739 | } | |
740 | ||
741 | return FALSE; | |
742 | } | |
743 | ||
744 | static int board_inquiry(unsigned int j) { | |
745 | struct mscp *cpp; | |
746 | dma_addr_t id_dma_addr; | |
747 | unsigned int time, limit = 0; | |
748 | ||
749 | id_dma_addr = pci_map_single(HD(j)->pdev, HD(j)->board_id, | |
750 | sizeof(HD(j)->board_id), PCI_DMA_BIDIRECTIONAL); | |
751 | cpp = &HD(j)->cp[0]; | |
752 | cpp->cp_dma_addr = pci_map_single(HD(j)->pdev, cpp, sizeof(struct mscp), | |
753 | PCI_DMA_BIDIRECTIONAL); | |
754 | memset(cpp, 0, sizeof(struct mscp) - CP_TAIL_SIZE); | |
755 | cpp->opcode = OP_HOST_ADAPTER; | |
756 | cpp->xdir = DTD_IN; | |
757 | cpp->data_address = H2DEV(id_dma_addr); | |
758 | cpp->data_len = H2DEV(sizeof(HD(j)->board_id)); | |
759 | cpp->cdb_len = 6; | |
760 | cpp->cdb[0] = HA_CMD_INQUIRY; | |
761 | ||
762 | if (wait_on_busy(sh[j]->io_port, MAXLOOP)) { | |
763 | printk("%s: board_inquiry, adapter busy.\n", BN(j)); | |
764 | return TRUE; | |
765 | } | |
766 | ||
767 | HD(j)->cp_stat[0] = IGNORE; | |
768 | ||
769 | /* Clear the interrupt indication */ | |
770 | outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR); | |
771 | ||
772 | /* Store pointer in OGM address bytes */ | |
773 | outl(H2DEV(cpp->cp_dma_addr), sh[j]->io_port + REG_OGM); | |
774 | ||
775 | /* Issue OGM interrupt */ | |
776 | outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR); | |
777 | ||
778 | spin_unlock_irq(&driver_lock); | |
779 | time = jiffies; | |
780 | while ((jiffies - time) < HZ && limit++ < 20000) udelay(100L); | |
781 | spin_lock_irq(&driver_lock); | |
782 | ||
783 | if (cpp->adapter_status || HD(j)->cp_stat[0] != FREE) { | |
784 | HD(j)->cp_stat[0] = FREE; | |
785 | printk("%s: board_inquiry, err 0x%x.\n", BN(j), cpp->adapter_status); | |
786 | return TRUE; | |
787 | } | |
788 | ||
789 | pci_unmap_single(HD(j)->pdev, cpp->cp_dma_addr, sizeof(struct mscp), | |
790 | PCI_DMA_BIDIRECTIONAL); | |
791 | pci_unmap_single(HD(j)->pdev, id_dma_addr, sizeof(HD(j)->board_id), | |
792 | PCI_DMA_BIDIRECTIONAL); | |
793 | return FALSE; | |
794 | } | |
795 | ||
796 | static int port_detect \ | |
797 | (unsigned long port_base, unsigned int j, struct scsi_host_template *tpnt) { | |
798 | unsigned char irq, dma_channel, subversion, i; | |
799 | unsigned char in_byte; | |
800 | char *bus_type, dma_name[16]; | |
801 | ||
802 | /* Allowed BIOS base addresses (NULL indicates reserved) */ | |
803 | unsigned long bios_segment_table[8] = { | |
804 | 0, | |
805 | 0xc4000, 0xc8000, 0xcc000, 0xd0000, | |
806 | 0xd4000, 0xd8000, 0xdc000 | |
807 | }; | |
808 | ||
809 | /* Allowed IRQs */ | |
810 | unsigned char interrupt_table[4] = { 15, 14, 11, 10 }; | |
811 | ||
812 | /* Allowed DMA channels for ISA (0 indicates reserved) */ | |
813 | unsigned char dma_channel_table[4] = { 5, 6, 7, 0 }; | |
814 | ||
815 | /* Head/sector mappings */ | |
816 | struct { | |
817 | unsigned char heads; | |
818 | unsigned char sectors; | |
819 | } mapping_table[4] = { | |
820 | { 16, 63 }, { 64, 32 }, { 64, 63 }, { 64, 32 } | |
821 | }; | |
822 | ||
823 | struct config_1 { | |
824 | ||
825 | #if defined(__BIG_ENDIAN_BITFIELD) | |
826 | unsigned char dma_channel: 2, interrupt:2, | |
827 | removable_disks_as_fixed:1, bios_segment: 3; | |
828 | #else | |
829 | unsigned char bios_segment: 3, removable_disks_as_fixed: 1, | |
830 | interrupt: 2, dma_channel: 2; | |
831 | #endif | |
832 | ||
833 | } config_1; | |
834 | ||
835 | struct config_2 { | |
836 | ||
837 | #if defined(__BIG_ENDIAN_BITFIELD) | |
838 | unsigned char tfr_port: 2, bios_drive_number: 1, | |
839 | mapping_mode: 2, ha_scsi_id: 3; | |
840 | #else | |
841 | unsigned char ha_scsi_id: 3, mapping_mode: 2, | |
842 | bios_drive_number: 1, tfr_port: 2; | |
843 | #endif | |
844 | ||
845 | } config_2; | |
846 | ||
847 | char name[16]; | |
848 | ||
849 | sprintf(name, "%s%d", driver_name, j); | |
850 | ||
851 | if (!request_region(port_base, REGION_SIZE, driver_name)) { | |
852 | #if defined(DEBUG_DETECT) | |
853 | printk("%s: address 0x%03lx in use, skipping probe.\n", name, port_base); | |
854 | #endif | |
855 | goto fail; | |
856 | } | |
857 | ||
858 | spin_lock_irq(&driver_lock); | |
859 | ||
860 | if (inb(port_base + REG_PRODUCT_ID1) != PRODUCT_ID1) goto freelock; | |
861 | ||
862 | in_byte = inb(port_base + REG_PRODUCT_ID2); | |
863 | ||
864 | if ((in_byte & 0xf0) != PRODUCT_ID2) goto freelock; | |
865 | ||
866 | *(char *)&config_1 = inb(port_base + REG_CONFIG1); | |
867 | *(char *)&config_2 = inb(port_base + REG_CONFIG2); | |
868 | ||
869 | irq = interrupt_table[config_1.interrupt]; | |
870 | dma_channel = dma_channel_table[config_1.dma_channel]; | |
871 | subversion = (in_byte & 0x0f); | |
872 | ||
873 | /* Board detected, allocate its IRQ */ | |
874 | if (request_irq(irq, do_interrupt_handler, | |
1d6f359a | 875 | IRQF_DISABLED | ((subversion == ESA) ? IRQF_SHARED : 0), |
1da177e4 LT |
876 | driver_name, (void *) &sha[j])) { |
877 | printk("%s: unable to allocate IRQ %u, detaching.\n", name, irq); | |
878 | goto freelock; | |
879 | } | |
880 | ||
881 | if (subversion == ISA && request_dma(dma_channel, driver_name)) { | |
882 | printk("%s: unable to allocate DMA channel %u, detaching.\n", | |
883 | name, dma_channel); | |
884 | goto freeirq; | |
885 | } | |
886 | ||
887 | if (have_old_firmware) tpnt->use_clustering = DISABLE_CLUSTERING; | |
888 | ||
889 | spin_unlock_irq(&driver_lock); | |
890 | sh[j] = scsi_register(tpnt, sizeof(struct hostdata)); | |
891 | spin_lock_irq(&driver_lock); | |
892 | ||
893 | if (sh[j] == NULL) { | |
894 | printk("%s: unable to register host, detaching.\n", name); | |
895 | goto freedma; | |
896 | } | |
897 | ||
898 | sh[j]->io_port = port_base; | |
899 | sh[j]->unique_id = port_base; | |
900 | sh[j]->n_io_port = REGION_SIZE; | |
901 | sh[j]->base = bios_segment_table[config_1.bios_segment]; | |
902 | sh[j]->irq = irq; | |
903 | sh[j]->sg_tablesize = MAX_SGLIST; | |
904 | sh[j]->this_id = config_2.ha_scsi_id; | |
905 | sh[j]->can_queue = MAX_MAILBOXES; | |
906 | sh[j]->cmd_per_lun = MAX_CMD_PER_LUN; | |
907 | ||
908 | #if defined(DEBUG_DETECT) | |
909 | { | |
910 | unsigned char sys_mask, lcl_mask; | |
911 | ||
912 | sys_mask = inb(sh[j]->io_port + REG_SYS_MASK); | |
913 | lcl_mask = inb(sh[j]->io_port + REG_LCL_MASK); | |
914 | printk("SYS_MASK 0x%x, LCL_MASK 0x%x.\n", sys_mask, lcl_mask); | |
915 | } | |
916 | #endif | |
917 | ||
918 | /* Probably a bogus host scsi id, set it to the dummy value */ | |
919 | if (sh[j]->this_id == 0) sh[j]->this_id = -1; | |
920 | ||
921 | /* If BIOS is disabled, force enable interrupts */ | |
922 | if (sh[j]->base == 0) outb(CMD_ENA_INTR, sh[j]->io_port + REG_SYS_MASK); | |
923 | ||
924 | memset(HD(j), 0, sizeof(struct hostdata)); | |
925 | HD(j)->heads = mapping_table[config_2.mapping_mode].heads; | |
926 | HD(j)->sectors = mapping_table[config_2.mapping_mode].sectors; | |
927 | HD(j)->subversion = subversion; | |
928 | HD(j)->pdev = NULL; | |
929 | HD(j)->board_number = j; | |
930 | ||
931 | if (have_old_firmware) sh[j]->sg_tablesize = MAX_SAFE_SGLIST; | |
932 | ||
933 | if (HD(j)->subversion == ESA) { | |
934 | sh[j]->unchecked_isa_dma = FALSE; | |
935 | sh[j]->dma_channel = NO_DMA; | |
936 | sprintf(BN(j), "U34F%d", j); | |
937 | bus_type = "VESA"; | |
938 | } | |
939 | else { | |
940 | unsigned long flags; | |
941 | sh[j]->unchecked_isa_dma = TRUE; | |
942 | ||
943 | flags=claim_dma_lock(); | |
944 | disable_dma(dma_channel); | |
945 | clear_dma_ff(dma_channel); | |
946 | set_dma_mode(dma_channel, DMA_MODE_CASCADE); | |
947 | enable_dma(dma_channel); | |
948 | release_dma_lock(flags); | |
949 | ||
950 | sh[j]->dma_channel = dma_channel; | |
951 | sprintf(BN(j), "U14F%d", j); | |
952 | bus_type = "ISA"; | |
953 | } | |
954 | ||
955 | sh[j]->max_channel = MAX_CHANNEL - 1; | |
956 | sh[j]->max_id = MAX_TARGET; | |
957 | sh[j]->max_lun = MAX_LUN; | |
958 | ||
959 | if (HD(j)->subversion == ISA && !board_inquiry(j)) { | |
960 | HD(j)->board_id[40] = 0; | |
961 | ||
962 | if (strcmp(&HD(j)->board_id[32], "06000600")) { | |
963 | printk("%s: %s.\n", BN(j), &HD(j)->board_id[8]); | |
964 | printk("%s: firmware %s is outdated, FW PROM should be 28004-006.\n", | |
965 | BN(j), &HD(j)->board_id[32]); | |
966 | sh[j]->hostt->use_clustering = DISABLE_CLUSTERING; | |
967 | sh[j]->sg_tablesize = MAX_SAFE_SGLIST; | |
968 | } | |
969 | } | |
970 | ||
971 | if (dma_channel == NO_DMA) sprintf(dma_name, "%s", "BMST"); | |
972 | else sprintf(dma_name, "DMA %u", dma_channel); | |
973 | ||
974 | spin_unlock_irq(&driver_lock); | |
975 | ||
976 | for (i = 0; i < sh[j]->can_queue; i++) | |
977 | HD(j)->cp[i].cp_dma_addr = pci_map_single(HD(j)->pdev, | |
978 | &HD(j)->cp[i], sizeof(struct mscp), PCI_DMA_BIDIRECTIONAL); | |
979 | ||
980 | for (i = 0; i < sh[j]->can_queue; i++) | |
981 | if (! ((&HD(j)->cp[i])->sglist = kmalloc( | |
982 | sh[j]->sg_tablesize * sizeof(struct sg_list), | |
983 | (sh[j]->unchecked_isa_dma ? GFP_DMA : 0) | GFP_ATOMIC))) { | |
984 | printk("%s: kmalloc SGlist failed, mbox %d, detaching.\n", BN(j), i); | |
985 | goto release; | |
986 | } | |
987 | ||
988 | if (max_queue_depth > MAX_TAGGED_CMD_PER_LUN) | |
989 | max_queue_depth = MAX_TAGGED_CMD_PER_LUN; | |
990 | ||
991 | if (max_queue_depth < MAX_CMD_PER_LUN) max_queue_depth = MAX_CMD_PER_LUN; | |
992 | ||
993 | if (tag_mode != TAG_DISABLED && tag_mode != TAG_SIMPLE) | |
994 | tag_mode = TAG_ORDERED; | |
995 | ||
996 | if (j == 0) { | |
997 | printk("UltraStor 14F/34F: Copyright (C) 1994-2003 Dario Ballabio.\n"); | |
998 | printk("%s config options -> of:%c, tm:%d, lc:%c, mq:%d, et:%c.\n", | |
999 | driver_name, YESNO(have_old_firmware), tag_mode, | |
1000 | YESNO(linked_comm), max_queue_depth, YESNO(ext_tran)); | |
1001 | } | |
1002 | ||
1003 | printk("%s: %s 0x%03lx, BIOS 0x%05x, IRQ %u, %s, SG %d, MB %d.\n", | |
1004 | BN(j), bus_type, (unsigned long)sh[j]->io_port, (int)sh[j]->base, | |
1005 | sh[j]->irq, dma_name, sh[j]->sg_tablesize, sh[j]->can_queue); | |
1006 | ||
1007 | if (sh[j]->max_id > 8 || sh[j]->max_lun > 8) | |
1008 | printk("%s: wide SCSI support enabled, max_id %u, max_lun %u.\n", | |
1009 | BN(j), sh[j]->max_id, sh[j]->max_lun); | |
1010 | ||
1011 | for (i = 0; i <= sh[j]->max_channel; i++) | |
1012 | printk("%s: SCSI channel %u enabled, host target ID %d.\n", | |
1013 | BN(j), i, sh[j]->this_id); | |
1014 | ||
1015 | return TRUE; | |
1016 | ||
1017 | freedma: | |
1018 | if (subversion == ISA) free_dma(dma_channel); | |
1019 | freeirq: | |
1020 | free_irq(irq, &sha[j]); | |
1021 | freelock: | |
1022 | spin_unlock_irq(&driver_lock); | |
1023 | release_region(port_base, REGION_SIZE); | |
1024 | fail: | |
1025 | return FALSE; | |
1026 | ||
1027 | release: | |
1028 | u14_34f_release(sh[j]); | |
1029 | return FALSE; | |
1030 | } | |
1031 | ||
1032 | static void internal_setup(char *str, int *ints) { | |
1033 | int i, argc = ints[0]; | |
1034 | char *cur = str, *pc; | |
1035 | ||
1036 | if (argc > 0) { | |
1037 | ||
1038 | if (argc > MAX_INT_PARAM) argc = MAX_INT_PARAM; | |
1039 | ||
1040 | for (i = 0; i < argc; i++) io_port[i] = ints[i + 1]; | |
1041 | ||
1042 | io_port[i] = 0; | |
1043 | setup_done = TRUE; | |
1044 | } | |
1045 | ||
1046 | while (cur && (pc = strchr(cur, ':'))) { | |
1047 | int val = 0, c = *++pc; | |
1048 | ||
1049 | if (c == 'n' || c == 'N') val = FALSE; | |
1050 | else if (c == 'y' || c == 'Y') val = TRUE; | |
1051 | else val = (int) simple_strtoul(pc, NULL, 0); | |
1052 | ||
1053 | if (!strncmp(cur, "lc:", 3)) linked_comm = val; | |
1054 | else if (!strncmp(cur, "of:", 3)) have_old_firmware = val; | |
1055 | else if (!strncmp(cur, "tm:", 3)) tag_mode = val; | |
1056 | else if (!strncmp(cur, "tc:", 3)) tag_mode = val; | |
1057 | else if (!strncmp(cur, "mq:", 3)) max_queue_depth = val; | |
1058 | else if (!strncmp(cur, "ls:", 3)) link_statistics = val; | |
1059 | else if (!strncmp(cur, "et:", 3)) ext_tran = val; | |
1060 | ||
1061 | if ((cur = strchr(cur, ','))) ++cur; | |
1062 | } | |
1063 | ||
1064 | return; | |
1065 | } | |
1066 | ||
1067 | static int option_setup(char *str) { | |
1068 | int ints[MAX_INT_PARAM]; | |
1069 | char *cur = str; | |
1070 | int i = 1; | |
1071 | ||
1072 | while (cur && isdigit(*cur) && i <= MAX_INT_PARAM) { | |
1073 | ints[i++] = simple_strtoul(cur, NULL, 0); | |
1074 | ||
1075 | if ((cur = strchr(cur, ',')) != NULL) cur++; | |
1076 | } | |
1077 | ||
1078 | ints[0] = i - 1; | |
1079 | internal_setup(cur, ints); | |
1080 | return 1; | |
1081 | } | |
1082 | ||
1083 | static int u14_34f_detect(struct scsi_host_template *tpnt) { | |
1084 | unsigned int j = 0, k; | |
1085 | ||
1086 | tpnt->proc_name = "u14-34f"; | |
1087 | ||
1088 | if(strlen(boot_options)) option_setup(boot_options); | |
1089 | ||
1090 | #if defined(MODULE) | |
1091 | /* io_port could have been modified when loading as a module */ | |
1092 | if(io_port[0] != SKIP) { | |
1093 | setup_done = TRUE; | |
1094 | io_port[MAX_INT_PARAM] = 0; | |
1095 | } | |
1096 | #endif | |
1097 | ||
1098 | for (k = 0; k < MAX_BOARDS + 1; k++) sh[k] = NULL; | |
1099 | ||
1100 | for (k = 0; io_port[k]; k++) { | |
1101 | ||
1102 | if (io_port[k] == SKIP) continue; | |
1103 | ||
1104 | if (j < MAX_BOARDS && port_detect(io_port[k], j, tpnt)) j++; | |
1105 | } | |
1106 | ||
1107 | num_boards = j; | |
1108 | return j; | |
1109 | } | |
1110 | ||
1111 | static void map_dma(unsigned int i, unsigned int j) { | |
1112 | unsigned int data_len = 0; | |
1113 | unsigned int k, count, pci_dir; | |
fea97f9a | 1114 | struct scatterlist *sg; |
1da177e4 LT |
1115 | struct mscp *cpp; |
1116 | struct scsi_cmnd *SCpnt; | |
1117 | ||
1118 | cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt; | |
1119 | pci_dir = SCpnt->sc_data_direction; | |
1120 | ||
1121 | if (SCpnt->sense_buffer) | |
1122 | cpp->sense_addr = H2DEV(pci_map_single(HD(j)->pdev, SCpnt->sense_buffer, | |
b80ca4f7 | 1123 | SCSI_SENSE_BUFFERSIZE, PCI_DMA_FROMDEVICE)); |
1da177e4 | 1124 | |
b80ca4f7 | 1125 | cpp->sense_len = SCSI_SENSE_BUFFERSIZE; |
1da177e4 | 1126 | |
fea97f9a FT |
1127 | if (scsi_bufflen(SCpnt)) { |
1128 | count = scsi_dma_map(SCpnt); | |
1129 | BUG_ON(count < 0); | |
1130 | ||
1131 | scsi_for_each_sg(SCpnt, sg, count, k) { | |
1132 | cpp->sglist[k].address = H2DEV(sg_dma_address(sg)); | |
1133 | cpp->sglist[k].num_bytes = H2DEV(sg_dma_len(sg)); | |
1134 | data_len += sg->length; | |
1135 | } | |
1136 | ||
1137 | cpp->sg = TRUE; | |
1138 | cpp->use_sg = scsi_sg_count(SCpnt); | |
1139 | cpp->data_address = | |
1140 | H2DEV(pci_map_single(HD(j)->pdev, cpp->sglist, | |
1141 | cpp->use_sg * sizeof(struct sg_list), | |
1142 | pci_dir)); | |
1143 | cpp->data_len = H2DEV(data_len); | |
1144 | ||
1145 | } else { | |
1146 | pci_dir = PCI_DMA_BIDIRECTIONAL; | |
1147 | cpp->data_len = H2DEV(scsi_bufflen(SCpnt)); | |
1148 | } | |
1da177e4 LT |
1149 | } |
1150 | ||
1151 | static void unmap_dma(unsigned int i, unsigned int j) { | |
1152 | unsigned int pci_dir; | |
1153 | struct mscp *cpp; | |
1154 | struct scsi_cmnd *SCpnt; | |
1155 | ||
1156 | cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt; | |
1157 | pci_dir = SCpnt->sc_data_direction; | |
1158 | ||
1159 | if (DEV2H(cpp->sense_addr)) | |
1160 | pci_unmap_single(HD(j)->pdev, DEV2H(cpp->sense_addr), | |
1161 | DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE); | |
1162 | ||
fea97f9a | 1163 | scsi_dma_unmap(SCpnt); |
1da177e4 LT |
1164 | |
1165 | if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL; | |
1166 | ||
1167 | if (DEV2H(cpp->data_address)) | |
1168 | pci_unmap_single(HD(j)->pdev, DEV2H(cpp->data_address), | |
1169 | DEV2H(cpp->data_len), pci_dir); | |
1170 | } | |
1171 | ||
1172 | static void sync_dma(unsigned int i, unsigned int j) { | |
1173 | unsigned int pci_dir; | |
1174 | struct mscp *cpp; | |
1175 | struct scsi_cmnd *SCpnt; | |
1176 | ||
1177 | cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt; | |
1178 | pci_dir = SCpnt->sc_data_direction; | |
1179 | ||
1180 | if (DEV2H(cpp->sense_addr)) | |
1181 | pci_dma_sync_single_for_cpu(HD(j)->pdev, DEV2H(cpp->sense_addr), | |
1182 | DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE); | |
1183 | ||
fea97f9a FT |
1184 | if (scsi_sg_count(SCpnt)) |
1185 | pci_dma_sync_sg_for_cpu(HD(j)->pdev, scsi_sglist(SCpnt), | |
1186 | scsi_sg_count(SCpnt), pci_dir); | |
1da177e4 LT |
1187 | |
1188 | if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL; | |
1189 | ||
1190 | if (DEV2H(cpp->data_address)) | |
1191 | pci_dma_sync_single_for_cpu(HD(j)->pdev, DEV2H(cpp->data_address), | |
1192 | DEV2H(cpp->data_len), pci_dir); | |
1193 | } | |
1194 | ||
1195 | static void scsi_to_dev_dir(unsigned int i, unsigned int j) { | |
1196 | unsigned int k; | |
1197 | ||
1198 | static const unsigned char data_out_cmds[] = { | |
1199 | 0x0a, 0x2a, 0x15, 0x55, 0x04, 0x07, 0x18, 0x1d, 0x24, 0x2e, | |
1200 | 0x30, 0x31, 0x32, 0x38, 0x39, 0x3a, 0x3b, 0x3d, 0x3f, 0x40, | |
1201 | 0x41, 0x4c, 0xaa, 0xae, 0xb0, 0xb1, 0xb2, 0xb6, 0xea, 0x1b, 0x5d | |
1202 | }; | |
1203 | ||
1204 | static const unsigned char data_none_cmds[] = { | |
1205 | 0x01, 0x0b, 0x10, 0x11, 0x13, 0x16, 0x17, 0x19, 0x2b, 0x1e, | |
1206 | 0x2c, 0xac, 0x2f, 0xaf, 0x33, 0xb3, 0x35, 0x36, 0x45, 0x47, | |
1207 | 0x48, 0x49, 0xa9, 0x4b, 0xa5, 0xa6, 0xb5, 0x00 | |
1208 | }; | |
1209 | ||
1210 | struct mscp *cpp; | |
1211 | struct scsi_cmnd *SCpnt; | |
1212 | ||
1213 | cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt; | |
1214 | ||
1215 | if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) { | |
1216 | cpp->xdir = DTD_IN; | |
1217 | return; | |
1218 | } | |
d6a451dd | 1219 | else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) { |
1da177e4 LT |
1220 | cpp->xdir = DTD_OUT; |
1221 | return; | |
1222 | } | |
1223 | else if (SCpnt->sc_data_direction == DMA_NONE) { | |
1224 | cpp->xdir = DTD_NONE; | |
1225 | return; | |
1226 | } | |
1227 | ||
1228 | if (SCpnt->sc_data_direction != DMA_BIDIRECTIONAL) | |
1229 | panic("%s: qcomm, invalid SCpnt->sc_data_direction.\n", BN(j)); | |
1230 | ||
1231 | cpp->xdir = DTD_IN; | |
1232 | ||
1233 | for (k = 0; k < ARRAY_SIZE(data_out_cmds); k++) | |
1234 | if (SCpnt->cmnd[0] == data_out_cmds[k]) { | |
1235 | cpp->xdir = DTD_OUT; | |
1236 | break; | |
1237 | } | |
1238 | ||
1239 | if (cpp->xdir == DTD_IN) | |
1240 | for (k = 0; k < ARRAY_SIZE(data_none_cmds); k++) | |
1241 | if (SCpnt->cmnd[0] == data_none_cmds[k]) { | |
1242 | cpp->xdir = DTD_NONE; | |
1243 | break; | |
1244 | } | |
1245 | ||
1246 | } | |
1247 | ||
1248 | static int u14_34f_queuecommand(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) { | |
1249 | unsigned int i, j, k; | |
1250 | struct mscp *cpp; | |
1251 | ||
1252 | /* j is the board number */ | |
1253 | j = ((struct hostdata *) SCpnt->device->host->hostdata)->board_number; | |
1254 | ||
1255 | if (SCpnt->host_scribble) | |
1256 | panic("%s: qcomm, pid %ld, SCpnt %p already active.\n", | |
12a44162 | 1257 | BN(j), SCpnt->serial_number, SCpnt); |
1da177e4 LT |
1258 | |
1259 | /* i is the mailbox number, look for the first free mailbox | |
1260 | starting from last_cp_used */ | |
1261 | i = HD(j)->last_cp_used + 1; | |
1262 | ||
1263 | for (k = 0; k < sh[j]->can_queue; k++, i++) { | |
1264 | ||
1265 | if (i >= sh[j]->can_queue) i = 0; | |
1266 | ||
1267 | if (HD(j)->cp_stat[i] == FREE) { | |
1268 | HD(j)->last_cp_used = i; | |
1269 | break; | |
1270 | } | |
1271 | } | |
1272 | ||
1273 | if (k == sh[j]->can_queue) { | |
1274 | printk("%s: qcomm, no free mailbox.\n", BN(j)); | |
1275 | return 1; | |
1276 | } | |
1277 | ||
1278 | /* Set pointer to control packet structure */ | |
1279 | cpp = &HD(j)->cp[i]; | |
1280 | ||
1281 | memset(cpp, 0, sizeof(struct mscp) - CP_TAIL_SIZE); | |
1282 | SCpnt->scsi_done = done; | |
1283 | cpp->cpp_index = i; | |
1284 | SCpnt->host_scribble = (unsigned char *) &cpp->cpp_index; | |
1285 | ||
1286 | if (do_trace) printk("%s: qcomm, mbox %d, target %d.%d:%d, pid %ld.\n", | |
1287 | BN(j), i, SCpnt->device->channel, SCpnt->device->id, | |
12a44162 | 1288 | SCpnt->device->lun, SCpnt->serial_number); |
1da177e4 LT |
1289 | |
1290 | cpp->opcode = OP_SCSI; | |
1291 | cpp->channel = SCpnt->device->channel; | |
1292 | cpp->target = SCpnt->device->id; | |
1293 | cpp->lun = SCpnt->device->lun; | |
1294 | cpp->SCpnt = SCpnt; | |
1295 | cpp->cdb_len = SCpnt->cmd_len; | |
1296 | memcpy(cpp->cdb, SCpnt->cmnd, SCpnt->cmd_len); | |
1297 | ||
1298 | /* Use data transfer direction SCpnt->sc_data_direction */ | |
1299 | scsi_to_dev_dir(i, j); | |
1300 | ||
1301 | /* Map DMA buffers and SG list */ | |
1302 | map_dma(i, j); | |
1303 | ||
1304 | if (linked_comm && SCpnt->device->queue_depth > 2 | |
1305 | && TLDEV(SCpnt->device->type)) { | |
1306 | HD(j)->cp_stat[i] = READY; | |
1307 | flush_dev(SCpnt->device, SCpnt->request->sector, j, FALSE); | |
1308 | return 0; | |
1309 | } | |
1310 | ||
1311 | if (wait_on_busy(sh[j]->io_port, MAXLOOP)) { | |
1312 | unmap_dma(i, j); | |
1313 | SCpnt->host_scribble = NULL; | |
017560fc | 1314 | scmd_printk(KERN_INFO, SCpnt, |
12a44162 | 1315 | "qcomm, pid %ld, adapter busy.\n", SCpnt->serial_number); |
1da177e4 LT |
1316 | return 1; |
1317 | } | |
1318 | ||
1319 | /* Store pointer in OGM address bytes */ | |
1320 | outl(H2DEV(cpp->cp_dma_addr), sh[j]->io_port + REG_OGM); | |
1321 | ||
1322 | /* Issue OGM interrupt */ | |
1323 | outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR); | |
1324 | ||
1325 | HD(j)->cp_stat[i] = IN_USE; | |
1326 | return 0; | |
1327 | } | |
1328 | ||
1329 | static int u14_34f_eh_abort(struct scsi_cmnd *SCarg) { | |
1330 | unsigned int i, j; | |
1331 | ||
1332 | j = ((struct hostdata *) SCarg->device->host->hostdata)->board_number; | |
1333 | ||
1334 | if (SCarg->host_scribble == NULL) { | |
017560fc | 1335 | scmd_printk(KERN_INFO, SCarg, "abort, pid %ld inactive.\n", |
12a44162 | 1336 | SCarg->serial_number); |
1da177e4 LT |
1337 | return SUCCESS; |
1338 | } | |
1339 | ||
1340 | i = *(unsigned int *)SCarg->host_scribble; | |
017560fc | 1341 | scmd_printk(KERN_INFO, SCarg, "abort, mbox %d, pid %ld.\n", |
12a44162 | 1342 | i, SCarg->serial_number); |
1da177e4 LT |
1343 | |
1344 | if (i >= sh[j]->can_queue) | |
1345 | panic("%s: abort, invalid SCarg->host_scribble.\n", BN(j)); | |
1346 | ||
1347 | if (wait_on_busy(sh[j]->io_port, MAXLOOP)) { | |
1348 | printk("%s: abort, timeout error.\n", BN(j)); | |
1349 | return FAILED; | |
1350 | } | |
1351 | ||
1352 | if (HD(j)->cp_stat[i] == FREE) { | |
1353 | printk("%s: abort, mbox %d is free.\n", BN(j), i); | |
1354 | return SUCCESS; | |
1355 | } | |
1356 | ||
1357 | if (HD(j)->cp_stat[i] == IN_USE) { | |
1358 | printk("%s: abort, mbox %d is in use.\n", BN(j), i); | |
1359 | ||
1360 | if (SCarg != HD(j)->cp[i].SCpnt) | |
1361 | panic("%s: abort, mbox %d, SCarg %p, cp SCpnt %p.\n", | |
1362 | BN(j), i, SCarg, HD(j)->cp[i].SCpnt); | |
1363 | ||
1364 | if (inb(sh[j]->io_port + REG_SYS_INTR) & IRQ_ASSERTED) | |
1365 | printk("%s: abort, mbox %d, interrupt pending.\n", BN(j), i); | |
1366 | ||
1da177e4 LT |
1367 | return FAILED; |
1368 | } | |
1369 | ||
1370 | if (HD(j)->cp_stat[i] == IN_RESET) { | |
1371 | printk("%s: abort, mbox %d is in reset.\n", BN(j), i); | |
1372 | return FAILED; | |
1373 | } | |
1374 | ||
1375 | if (HD(j)->cp_stat[i] == LOCKED) { | |
1376 | printk("%s: abort, mbox %d is locked.\n", BN(j), i); | |
1377 | return SUCCESS; | |
1378 | } | |
1379 | ||
1380 | if (HD(j)->cp_stat[i] == READY || HD(j)->cp_stat[i] == ABORTING) { | |
1381 | unmap_dma(i, j); | |
1382 | SCarg->result = DID_ABORT << 16; | |
1383 | SCarg->host_scribble = NULL; | |
1384 | HD(j)->cp_stat[i] = FREE; | |
1385 | printk("%s, abort, mbox %d ready, DID_ABORT, pid %ld done.\n", | |
12a44162 | 1386 | BN(j), i, SCarg->serial_number); |
1da177e4 LT |
1387 | SCarg->scsi_done(SCarg); |
1388 | return SUCCESS; | |
1389 | } | |
1390 | ||
1391 | panic("%s: abort, mbox %d, invalid cp_stat.\n", BN(j), i); | |
1392 | } | |
1393 | ||
1394 | static int u14_34f_eh_host_reset(struct scsi_cmnd *SCarg) { | |
1395 | unsigned int i, j, time, k, c, limit = 0; | |
1396 | int arg_done = FALSE; | |
1397 | struct scsi_cmnd *SCpnt; | |
1398 | ||
1399 | j = ((struct hostdata *) SCarg->device->host->hostdata)->board_number; | |
12a44162 | 1400 | scmd_printk(KERN_INFO, SCarg, "reset, enter, pid %ld.\n", SCarg->serial_number); |
1da177e4 | 1401 | |
df0ae249 JG |
1402 | spin_lock_irq(sh[j]->host_lock); |
1403 | ||
1da177e4 | 1404 | if (SCarg->host_scribble == NULL) |
12a44162 | 1405 | printk("%s: reset, pid %ld inactive.\n", BN(j), SCarg->serial_number); |
1da177e4 LT |
1406 | |
1407 | if (HD(j)->in_reset) { | |
1408 | printk("%s: reset, exit, already in reset.\n", BN(j)); | |
df0ae249 | 1409 | spin_unlock_irq(sh[j]->host_lock); |
1da177e4 LT |
1410 | return FAILED; |
1411 | } | |
1412 | ||
1413 | if (wait_on_busy(sh[j]->io_port, MAXLOOP)) { | |
1414 | printk("%s: reset, exit, timeout error.\n", BN(j)); | |
df0ae249 | 1415 | spin_unlock_irq(sh[j]->host_lock); |
1da177e4 LT |
1416 | return FAILED; |
1417 | } | |
1418 | ||
1419 | HD(j)->retries = 0; | |
1420 | ||
1421 | for (c = 0; c <= sh[j]->max_channel; c++) | |
1422 | for (k = 0; k < sh[j]->max_id; k++) { | |
1423 | HD(j)->target_redo[k][c] = TRUE; | |
1424 | HD(j)->target_to[k][c] = 0; | |
1425 | } | |
1426 | ||
1427 | for (i = 0; i < sh[j]->can_queue; i++) { | |
1428 | ||
1429 | if (HD(j)->cp_stat[i] == FREE) continue; | |
1430 | ||
1431 | if (HD(j)->cp_stat[i] == LOCKED) { | |
1432 | HD(j)->cp_stat[i] = FREE; | |
1433 | printk("%s: reset, locked mbox %d forced free.\n", BN(j), i); | |
1434 | continue; | |
1435 | } | |
1436 | ||
1437 | if (!(SCpnt = HD(j)->cp[i].SCpnt)) | |
1438 | panic("%s: reset, mbox %d, SCpnt == NULL.\n", BN(j), i); | |
1439 | ||
1440 | if (HD(j)->cp_stat[i] == READY || HD(j)->cp_stat[i] == ABORTING) { | |
1441 | HD(j)->cp_stat[i] = ABORTING; | |
1442 | printk("%s: reset, mbox %d aborting, pid %ld.\n", | |
12a44162 | 1443 | BN(j), i, SCpnt->serial_number); |
1da177e4 LT |
1444 | } |
1445 | ||
1446 | else { | |
1447 | HD(j)->cp_stat[i] = IN_RESET; | |
1448 | printk("%s: reset, mbox %d in reset, pid %ld.\n", | |
12a44162 | 1449 | BN(j), i, SCpnt->serial_number); |
1da177e4 LT |
1450 | } |
1451 | ||
1452 | if (SCpnt->host_scribble == NULL) | |
1453 | panic("%s: reset, mbox %d, garbled SCpnt.\n", BN(j), i); | |
1454 | ||
1455 | if (*(unsigned int *)SCpnt->host_scribble != i) | |
1456 | panic("%s: reset, mbox %d, index mismatch.\n", BN(j), i); | |
1457 | ||
1458 | if (SCpnt->scsi_done == NULL) | |
1459 | panic("%s: reset, mbox %d, SCpnt->scsi_done == NULL.\n", BN(j), i); | |
1460 | ||
1461 | if (SCpnt == SCarg) arg_done = TRUE; | |
1462 | } | |
1463 | ||
1464 | if (wait_on_busy(sh[j]->io_port, MAXLOOP)) { | |
1465 | printk("%s: reset, cannot reset, timeout error.\n", BN(j)); | |
df0ae249 | 1466 | spin_unlock_irq(sh[j]->host_lock); |
1da177e4 LT |
1467 | return FAILED; |
1468 | } | |
1469 | ||
1470 | outb(CMD_RESET, sh[j]->io_port + REG_LCL_INTR); | |
1471 | printk("%s: reset, board reset done, enabling interrupts.\n", BN(j)); | |
1472 | ||
1473 | #if defined(DEBUG_RESET) | |
1474 | do_trace = TRUE; | |
1475 | #endif | |
1476 | ||
1477 | HD(j)->in_reset = TRUE; | |
1478 | ||
1479 | spin_unlock_irq(sh[j]->host_lock); | |
1480 | time = jiffies; | |
1481 | while ((jiffies - time) < (10 * HZ) && limit++ < 200000) udelay(100L); | |
1482 | spin_lock_irq(sh[j]->host_lock); | |
1483 | ||
1484 | printk("%s: reset, interrupts disabled, loops %d.\n", BN(j), limit); | |
1485 | ||
1486 | for (i = 0; i < sh[j]->can_queue; i++) { | |
1487 | ||
1488 | if (HD(j)->cp_stat[i] == IN_RESET) { | |
1489 | SCpnt = HD(j)->cp[i].SCpnt; | |
1490 | unmap_dma(i, j); | |
1491 | SCpnt->result = DID_RESET << 16; | |
1492 | SCpnt->host_scribble = NULL; | |
1493 | ||
1494 | /* This mailbox is still waiting for its interrupt */ | |
1495 | HD(j)->cp_stat[i] = LOCKED; | |
1496 | ||
1497 | printk("%s, reset, mbox %d locked, DID_RESET, pid %ld done.\n", | |
12a44162 | 1498 | BN(j), i, SCpnt->serial_number); |
1da177e4 LT |
1499 | } |
1500 | ||
1501 | else if (HD(j)->cp_stat[i] == ABORTING) { | |
1502 | SCpnt = HD(j)->cp[i].SCpnt; | |
1503 | unmap_dma(i, j); | |
1504 | SCpnt->result = DID_RESET << 16; | |
1505 | SCpnt->host_scribble = NULL; | |
1506 | ||
1507 | /* This mailbox was never queued to the adapter */ | |
1508 | HD(j)->cp_stat[i] = FREE; | |
1509 | ||
1510 | printk("%s, reset, mbox %d aborting, DID_RESET, pid %ld done.\n", | |
12a44162 | 1511 | BN(j), i, SCpnt->serial_number); |
1da177e4 LT |
1512 | } |
1513 | ||
1514 | else | |
1515 | ||
1516 | /* Any other mailbox has already been set free by interrupt */ | |
1517 | continue; | |
1518 | ||
1519 | SCpnt->scsi_done(SCpnt); | |
1520 | } | |
1521 | ||
1522 | HD(j)->in_reset = FALSE; | |
1523 | do_trace = FALSE; | |
1524 | ||
12a44162 | 1525 | if (arg_done) printk("%s: reset, exit, pid %ld done.\n", BN(j), SCarg->serial_number); |
1da177e4 LT |
1526 | else printk("%s: reset, exit.\n", BN(j)); |
1527 | ||
df0ae249 | 1528 | spin_unlock_irq(sh[j]->host_lock); |
1da177e4 LT |
1529 | return SUCCESS; |
1530 | } | |
1531 | ||
1532 | static int u14_34f_bios_param(struct scsi_device *disk, | |
1533 | struct block_device *bdev, sector_t capacity, int *dkinfo) { | |
1534 | unsigned int j = 0; | |
1535 | unsigned int size = capacity; | |
1536 | ||
1537 | dkinfo[0] = HD(j)->heads; | |
1538 | dkinfo[1] = HD(j)->sectors; | |
1539 | dkinfo[2] = size / (HD(j)->heads * HD(j)->sectors); | |
1540 | ||
1541 | if (ext_tran && (scsicam_bios_param(bdev, capacity, dkinfo) < 0)) { | |
1542 | dkinfo[0] = 255; | |
1543 | dkinfo[1] = 63; | |
1544 | dkinfo[2] = size / (dkinfo[0] * dkinfo[1]); | |
1545 | } | |
1546 | ||
1547 | #if defined (DEBUG_GEOMETRY) | |
1548 | printk ("%s: bios_param, head=%d, sec=%d, cyl=%d.\n", driver_name, | |
1549 | dkinfo[0], dkinfo[1], dkinfo[2]); | |
1550 | #endif | |
1551 | ||
1552 | return FALSE; | |
1553 | } | |
1554 | ||
1555 | static void sort(unsigned long sk[], unsigned int da[], unsigned int n, | |
1556 | unsigned int rev) { | |
1557 | unsigned int i, j, k, y; | |
1558 | unsigned long x; | |
1559 | ||
1560 | for (i = 0; i < n - 1; i++) { | |
1561 | k = i; | |
1562 | ||
1563 | for (j = k + 1; j < n; j++) | |
1564 | if (rev) { | |
1565 | if (sk[j] > sk[k]) k = j; | |
1566 | } | |
1567 | else { | |
1568 | if (sk[j] < sk[k]) k = j; | |
1569 | } | |
1570 | ||
1571 | if (k != i) { | |
1572 | x = sk[k]; sk[k] = sk[i]; sk[i] = x; | |
1573 | y = da[k]; da[k] = da[i]; da[i] = y; | |
1574 | } | |
1575 | } | |
1576 | ||
1577 | return; | |
1578 | } | |
1579 | ||
1580 | static int reorder(unsigned int j, unsigned long cursec, | |
1581 | unsigned int ihdlr, unsigned int il[], unsigned int n_ready) { | |
1582 | struct scsi_cmnd *SCpnt; | |
1583 | struct mscp *cpp; | |
1584 | unsigned int k, n; | |
1585 | unsigned int rev = FALSE, s = TRUE, r = TRUE; | |
1586 | unsigned int input_only = TRUE, overlap = FALSE; | |
1587 | unsigned long sl[n_ready], pl[n_ready], ll[n_ready]; | |
1588 | unsigned long maxsec = 0, minsec = ULONG_MAX, seek = 0, iseek = 0; | |
1589 | unsigned long ioseek = 0; | |
1590 | ||
1591 | static unsigned int flushcount = 0, batchcount = 0, sortcount = 0; | |
1592 | static unsigned int readycount = 0, ovlcount = 0, inputcount = 0; | |
1593 | static unsigned int readysorted = 0, revcount = 0; | |
1594 | static unsigned long seeksorted = 0, seeknosort = 0; | |
1595 | ||
1596 | if (link_statistics && !(++flushcount % link_statistics)) | |
1597 | printk("fc %d bc %d ic %d oc %d rc %d rs %d sc %d re %d"\ | |
1598 | " av %ldK as %ldK.\n", flushcount, batchcount, inputcount, | |
1599 | ovlcount, readycount, readysorted, sortcount, revcount, | |
1600 | seeknosort / (readycount + 1), | |
1601 | seeksorted / (readycount + 1)); | |
1602 | ||
1603 | if (n_ready <= 1) return FALSE; | |
1604 | ||
1605 | for (n = 0; n < n_ready; n++) { | |
1606 | k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt; | |
1607 | ||
1608 | if (!(cpp->xdir == DTD_IN)) input_only = FALSE; | |
1609 | ||
1610 | if (SCpnt->request->sector < minsec) minsec = SCpnt->request->sector; | |
1611 | if (SCpnt->request->sector > maxsec) maxsec = SCpnt->request->sector; | |
1612 | ||
1613 | sl[n] = SCpnt->request->sector; | |
1614 | ioseek += SCpnt->request->nr_sectors; | |
1615 | ||
1616 | if (!n) continue; | |
1617 | ||
1618 | if (sl[n] < sl[n - 1]) s = FALSE; | |
1619 | if (sl[n] > sl[n - 1]) r = FALSE; | |
1620 | ||
1621 | if (link_statistics) { | |
1622 | if (sl[n] > sl[n - 1]) | |
1623 | seek += sl[n] - sl[n - 1]; | |
1624 | else | |
1625 | seek += sl[n - 1] - sl[n]; | |
1626 | } | |
1627 | ||
1628 | } | |
1629 | ||
1630 | if (link_statistics) { | |
1631 | if (cursec > sl[0]) seek += cursec - sl[0]; else seek += sl[0] - cursec; | |
1632 | } | |
1633 | ||
1634 | if (cursec > ((maxsec + minsec) / 2)) rev = TRUE; | |
1635 | ||
1636 | if (ioseek > ((maxsec - minsec) / 2)) rev = FALSE; | |
1637 | ||
1638 | if (!((rev && r) || (!rev && s))) sort(sl, il, n_ready, rev); | |
1639 | ||
1640 | if (!input_only) for (n = 0; n < n_ready; n++) { | |
1641 | k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt; | |
12a44162 | 1642 | ll[n] = SCpnt->request->nr_sectors; pl[n] = SCpnt->serial_number; |
1da177e4 LT |
1643 | |
1644 | if (!n) continue; | |
1645 | ||
1646 | if ((sl[n] == sl[n - 1]) || (!rev && ((sl[n - 1] + ll[n - 1]) > sl[n])) | |
1647 | || (rev && ((sl[n] + ll[n]) > sl[n - 1]))) overlap = TRUE; | |
1648 | } | |
1649 | ||
1650 | if (overlap) sort(pl, il, n_ready, FALSE); | |
1651 | ||
1652 | if (link_statistics) { | |
1653 | if (cursec > sl[0]) iseek = cursec - sl[0]; else iseek = sl[0] - cursec; | |
1654 | batchcount++; readycount += n_ready; seeknosort += seek / 1024; | |
1655 | if (input_only) inputcount++; | |
1656 | if (overlap) { ovlcount++; seeksorted += iseek / 1024; } | |
1657 | else seeksorted += (iseek + maxsec - minsec) / 1024; | |
1658 | if (rev && !r) { revcount++; readysorted += n_ready; } | |
1659 | if (!rev && !s) { sortcount++; readysorted += n_ready; } | |
1660 | } | |
1661 | ||
1662 | #if defined(DEBUG_LINKED_COMMANDS) | |
1663 | if (link_statistics && (overlap || !(flushcount % link_statistics))) | |
1664 | for (n = 0; n < n_ready; n++) { | |
1665 | k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt; | |
1666 | printk("%s %d.%d:%d pid %ld mb %d fc %d nr %d sec %ld ns %ld"\ | |
1667 | " cur %ld s:%c r:%c rev:%c in:%c ov:%c xd %d.\n", | |
1668 | (ihdlr ? "ihdlr" : "qcomm"), SCpnt->channel, SCpnt->target, | |
12a44162 | 1669 | SCpnt->lun, SCpnt->serial_number, k, flushcount, n_ready, |
1da177e4 LT |
1670 | SCpnt->request->sector, SCpnt->request->nr_sectors, cursec, |
1671 | YESNO(s), YESNO(r), YESNO(rev), YESNO(input_only), | |
1672 | YESNO(overlap), cpp->xdir); | |
1673 | } | |
1674 | #endif | |
1675 | return overlap; | |
1676 | } | |
1677 | ||
1678 | static void flush_dev(struct scsi_device *dev, unsigned long cursec, unsigned int j, | |
1679 | unsigned int ihdlr) { | |
1680 | struct scsi_cmnd *SCpnt; | |
1681 | struct mscp *cpp; | |
1682 | unsigned int k, n, n_ready = 0, il[MAX_MAILBOXES]; | |
1683 | ||
1684 | for (k = 0; k < sh[j]->can_queue; k++) { | |
1685 | ||
1686 | if (HD(j)->cp_stat[k] != READY && HD(j)->cp_stat[k] != IN_USE) continue; | |
1687 | ||
1688 | cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt; | |
1689 | ||
1690 | if (SCpnt->device != dev) continue; | |
1691 | ||
1692 | if (HD(j)->cp_stat[k] == IN_USE) return; | |
1693 | ||
1694 | il[n_ready++] = k; | |
1695 | } | |
1696 | ||
1697 | if (reorder(j, cursec, ihdlr, il, n_ready)) n_ready = 1; | |
1698 | ||
1699 | for (n = 0; n < n_ready; n++) { | |
1700 | k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt; | |
1701 | ||
1702 | if (wait_on_busy(sh[j]->io_port, MAXLOOP)) { | |
017560fc JG |
1703 | scmd_printk(KERN_INFO, SCpnt, |
1704 | "%s, pid %ld, mbox %d, adapter" | |
1705 | " busy, will abort.\n", (ihdlr ? "ihdlr" : "qcomm"), | |
12a44162 | 1706 | SCpnt->serial_number, k); |
1da177e4 LT |
1707 | HD(j)->cp_stat[k] = ABORTING; |
1708 | continue; | |
1709 | } | |
1710 | ||
1711 | outl(H2DEV(cpp->cp_dma_addr), sh[j]->io_port + REG_OGM); | |
1712 | outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR); | |
1713 | HD(j)->cp_stat[k] = IN_USE; | |
1714 | } | |
1715 | ||
1716 | } | |
1717 | ||
1718 | static irqreturn_t ihdlr(int irq, unsigned int j) { | |
1719 | struct scsi_cmnd *SCpnt; | |
1720 | unsigned int i, k, c, status, tstatus, reg, ret; | |
1721 | struct mscp *spp, *cpp; | |
1722 | ||
1723 | if (sh[j]->irq != irq) | |
1724 | panic("%s: ihdlr, irq %d, sh[j]->irq %d.\n", BN(j), irq, sh[j]->irq); | |
1725 | ||
1726 | /* Check if this board need to be serviced */ | |
1727 | if (!((reg = inb(sh[j]->io_port + REG_SYS_INTR)) & IRQ_ASSERTED)) goto none; | |
1728 | ||
1729 | HD(j)->iocount++; | |
1730 | ||
1731 | if (do_trace) printk("%s: ihdlr, enter, irq %d, count %d.\n", BN(j), irq, | |
1732 | HD(j)->iocount); | |
1733 | ||
1734 | /* Check if this board is still busy */ | |
1735 | if (wait_on_busy(sh[j]->io_port, 20 * MAXLOOP)) { | |
1736 | outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR); | |
1737 | printk("%s: ihdlr, busy timeout error, irq %d, reg 0x%x, count %d.\n", | |
1738 | BN(j), irq, reg, HD(j)->iocount); | |
1739 | goto none; | |
1740 | } | |
1741 | ||
1742 | ret = inl(sh[j]->io_port + REG_ICM); | |
1743 | ||
1744 | /* Clear interrupt pending flag */ | |
1745 | outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR); | |
1746 | ||
1747 | /* Find the mailbox to be serviced on this board */ | |
1748 | for (i = 0; i < sh[j]->can_queue; i++) | |
1749 | if (H2DEV(HD(j)->cp[i].cp_dma_addr) == ret) break; | |
1750 | ||
1751 | if (i >= sh[j]->can_queue) | |
1752 | panic("%s: ihdlr, invalid mscp bus address %p, cp0 %p.\n", BN(j), | |
1753 | (void *)ret, (void *)H2DEV(HD(j)->cp[0].cp_dma_addr)); | |
1754 | ||
1755 | cpp = &(HD(j)->cp[i]); | |
1756 | spp = cpp; | |
1757 | ||
1758 | #if defined(DEBUG_GENERATE_ABORTS) | |
1759 | if ((HD(j)->iocount > 500) && ((HD(j)->iocount % 500) < 3)) goto handled; | |
1760 | #endif | |
1761 | ||
1762 | if (HD(j)->cp_stat[i] == IGNORE) { | |
1763 | HD(j)->cp_stat[i] = FREE; | |
1764 | goto handled; | |
1765 | } | |
1766 | else if (HD(j)->cp_stat[i] == LOCKED) { | |
1767 | HD(j)->cp_stat[i] = FREE; | |
1768 | printk("%s: ihdlr, mbox %d unlocked, count %d.\n", BN(j), i, | |
1769 | HD(j)->iocount); | |
1770 | goto handled; | |
1771 | } | |
1772 | else if (HD(j)->cp_stat[i] == FREE) { | |
1773 | printk("%s: ihdlr, mbox %d is free, count %d.\n", BN(j), i, | |
1774 | HD(j)->iocount); | |
1775 | goto handled; | |
1776 | } | |
1777 | else if (HD(j)->cp_stat[i] == IN_RESET) | |
1778 | printk("%s: ihdlr, mbox %d is in reset.\n", BN(j), i); | |
1779 | else if (HD(j)->cp_stat[i] != IN_USE) | |
1780 | panic("%s: ihdlr, mbox %d, invalid cp_stat: %d.\n", | |
1781 | BN(j), i, HD(j)->cp_stat[i]); | |
1782 | ||
1783 | HD(j)->cp_stat[i] = FREE; | |
1784 | SCpnt = cpp->SCpnt; | |
1785 | ||
1786 | if (SCpnt == NULL) panic("%s: ihdlr, mbox %d, SCpnt == NULL.\n", BN(j), i); | |
1787 | ||
1788 | if (SCpnt->host_scribble == NULL) | |
1789 | panic("%s: ihdlr, mbox %d, pid %ld, SCpnt %p garbled.\n", BN(j), i, | |
12a44162 | 1790 | SCpnt->serial_number, SCpnt); |
1da177e4 LT |
1791 | |
1792 | if (*(unsigned int *)SCpnt->host_scribble != i) | |
1793 | panic("%s: ihdlr, mbox %d, pid %ld, index mismatch %d.\n", | |
12a44162 | 1794 | BN(j), i, SCpnt->serial_number, *(unsigned int *)SCpnt->host_scribble); |
1da177e4 LT |
1795 | |
1796 | sync_dma(i, j); | |
1797 | ||
1798 | if (linked_comm && SCpnt->device->queue_depth > 2 | |
1799 | && TLDEV(SCpnt->device->type)) | |
1800 | flush_dev(SCpnt->device, SCpnt->request->sector, j, TRUE); | |
1801 | ||
1802 | tstatus = status_byte(spp->target_status); | |
1803 | ||
1804 | #if defined(DEBUG_GENERATE_ERRORS) | |
1805 | if ((HD(j)->iocount > 500) && ((HD(j)->iocount % 200) < 2)) | |
1806 | spp->adapter_status = 0x01; | |
1807 | #endif | |
1808 | ||
1809 | switch (spp->adapter_status) { | |
1810 | case ASOK: /* status OK */ | |
1811 | ||
1812 | /* Forces a reset if a disk drive keeps returning BUSY */ | |
1813 | if (tstatus == BUSY && SCpnt->device->type != TYPE_TAPE) | |
1814 | status = DID_ERROR << 16; | |
1815 | ||
1816 | /* If there was a bus reset, redo operation on each target */ | |
1817 | else if (tstatus != GOOD && SCpnt->device->type == TYPE_DISK | |
422c0d61 | 1818 | && HD(j)->target_redo[scmd_id(SCpnt)][scmd_channel(SCpnt)]) |
1da177e4 LT |
1819 | status = DID_BUS_BUSY << 16; |
1820 | ||
1821 | /* Works around a flaw in scsi.c */ | |
1822 | else if (tstatus == CHECK_CONDITION | |
1823 | && SCpnt->device->type == TYPE_DISK | |
1824 | && (SCpnt->sense_buffer[2] & 0xf) == RECOVERED_ERROR) | |
1825 | status = DID_BUS_BUSY << 16; | |
1826 | ||
1827 | else | |
1828 | status = DID_OK << 16; | |
1829 | ||
1830 | if (tstatus == GOOD) | |
422c0d61 | 1831 | HD(j)->target_redo[scmd_id(SCpnt)][scmd_channel(SCpnt)] = FALSE; |
1da177e4 LT |
1832 | |
1833 | if (spp->target_status && SCpnt->device->type == TYPE_DISK && | |
1834 | (!(tstatus == CHECK_CONDITION && HD(j)->iocount <= 1000 && | |
1835 | (SCpnt->sense_buffer[2] & 0xf) == NOT_READY))) | |
422c0d61 JG |
1836 | scmd_printk(KERN_INFO, SCpnt, |
1837 | "ihdlr, pid %ld, target_status 0x%x, sense key 0x%x.\n", | |
12a44162 | 1838 | SCpnt->serial_number, spp->target_status, |
1da177e4 LT |
1839 | SCpnt->sense_buffer[2]); |
1840 | ||
422c0d61 | 1841 | HD(j)->target_to[scmd_id(SCpnt)][scmd_channel(SCpnt)] = 0; |
1da177e4 | 1842 | |
12a44162 | 1843 | if (HD(j)->last_retried_pid == SCpnt->serial_number) HD(j)->retries = 0; |
1da177e4 LT |
1844 | |
1845 | break; | |
1846 | case ASST: /* Selection Time Out */ | |
1847 | ||
422c0d61 | 1848 | if (HD(j)->target_to[scmd_id(SCpnt)][scmd_channel(SCpnt)] > 1) |
1da177e4 LT |
1849 | status = DID_ERROR << 16; |
1850 | else { | |
1851 | status = DID_TIME_OUT << 16; | |
422c0d61 | 1852 | HD(j)->target_to[scmd_id(SCpnt)][scmd_channel(SCpnt)]++; |
1da177e4 LT |
1853 | } |
1854 | ||
1855 | break; | |
1856 | ||
1857 | /* Perform a limited number of internal retries */ | |
1858 | case 0x93: /* Unexpected bus free */ | |
1859 | case 0x94: /* Target bus phase sequence failure */ | |
1860 | case 0x96: /* Illegal SCSI command */ | |
1861 | case 0xa3: /* SCSI bus reset error */ | |
1862 | ||
1863 | for (c = 0; c <= sh[j]->max_channel; c++) | |
1864 | for (k = 0; k < sh[j]->max_id; k++) | |
1865 | HD(j)->target_redo[k][c] = TRUE; | |
1866 | ||
1867 | ||
1868 | case 0x92: /* Data over/under-run */ | |
1869 | ||
1870 | if (SCpnt->device->type != TYPE_TAPE | |
1871 | && HD(j)->retries < MAX_INTERNAL_RETRIES) { | |
1872 | ||
1873 | #if defined(DID_SOFT_ERROR) | |
1874 | status = DID_SOFT_ERROR << 16; | |
1875 | #else | |
1876 | status = DID_BUS_BUSY << 16; | |
1877 | #endif | |
1878 | ||
1879 | HD(j)->retries++; | |
12a44162 | 1880 | HD(j)->last_retried_pid = SCpnt->serial_number; |
1da177e4 LT |
1881 | } |
1882 | else | |
1883 | status = DID_ERROR << 16; | |
1884 | ||
1885 | break; | |
1886 | case 0x01: /* Invalid command */ | |
1887 | case 0x02: /* Invalid parameters */ | |
1888 | case 0x03: /* Invalid data list */ | |
1889 | case 0x84: /* SCSI bus abort error */ | |
1890 | case 0x9b: /* Auto request sense error */ | |
1891 | case 0x9f: /* Unexpected command complete message error */ | |
1892 | case 0xff: /* Invalid parameter in the S/G list */ | |
1893 | default: | |
1894 | status = DID_ERROR << 16; | |
1895 | break; | |
1896 | } | |
1897 | ||
1898 | SCpnt->result = status | spp->target_status; | |
1899 | ||
1900 | #if defined(DEBUG_INTERRUPT) | |
1901 | if (SCpnt->result || do_trace) | |
1902 | #else | |
1903 | if ((spp->adapter_status != ASOK && HD(j)->iocount > 1000) || | |
1904 | (spp->adapter_status != ASOK && | |
1905 | spp->adapter_status != ASST && HD(j)->iocount <= 1000) || | |
1906 | do_trace || msg_byte(spp->target_status)) | |
1907 | #endif | |
017560fc JG |
1908 | scmd_printk(KERN_INFO, SCpnt, "ihdlr, mbox %2d, err 0x%x:%x,"\ |
1909 | " pid %ld, reg 0x%x, count %d.\n", | |
12a44162 | 1910 | i, spp->adapter_status, spp->target_status, SCpnt->serial_number, |
1da177e4 LT |
1911 | reg, HD(j)->iocount); |
1912 | ||
1913 | unmap_dma(i, j); | |
1914 | ||
1915 | /* Set the command state to inactive */ | |
1916 | SCpnt->host_scribble = NULL; | |
1917 | ||
1918 | SCpnt->scsi_done(SCpnt); | |
1919 | ||
1920 | if (do_trace) printk("%s: ihdlr, exit, irq %d, count %d.\n", BN(j), irq, | |
1921 | HD(j)->iocount); | |
1922 | ||
1923 | handled: | |
1924 | return IRQ_HANDLED; | |
1925 | none: | |
1926 | return IRQ_NONE; | |
1927 | } | |
1928 | ||
7d12e780 | 1929 | static irqreturn_t do_interrupt_handler(int irq, void *shap) { |
1da177e4 LT |
1930 | unsigned int j; |
1931 | unsigned long spin_flags; | |
1932 | irqreturn_t ret; | |
1933 | ||
1934 | /* Check if the interrupt must be processed by this handler */ | |
1935 | if ((j = (unsigned int)((char *)shap - sha)) >= num_boards) return IRQ_NONE; | |
1936 | ||
1937 | spin_lock_irqsave(sh[j]->host_lock, spin_flags); | |
1938 | ret = ihdlr(irq, j); | |
1939 | spin_unlock_irqrestore(sh[j]->host_lock, spin_flags); | |
1940 | return ret; | |
1941 | } | |
1942 | ||
1943 | static int u14_34f_release(struct Scsi_Host *shpnt) { | |
1944 | unsigned int i, j; | |
1945 | ||
1946 | for (j = 0; sh[j] != NULL && sh[j] != shpnt; j++); | |
1947 | ||
c9475cb0 JJ |
1948 | if (sh[j] == NULL) |
1949 | panic("%s: release, invalid Scsi_Host pointer.\n", driver_name); | |
1da177e4 LT |
1950 | |
1951 | for (i = 0; i < sh[j]->can_queue; i++) | |
c9475cb0 | 1952 | kfree((&HD(j)->cp[i])->sglist); |
1da177e4 LT |
1953 | |
1954 | for (i = 0; i < sh[j]->can_queue; i++) | |
1955 | pci_unmap_single(HD(j)->pdev, HD(j)->cp[i].cp_dma_addr, | |
1956 | sizeof(struct mscp), PCI_DMA_BIDIRECTIONAL); | |
1957 | ||
1958 | free_irq(sh[j]->irq, &sha[j]); | |
1959 | ||
c9475cb0 JJ |
1960 | if (sh[j]->dma_channel != NO_DMA) |
1961 | free_dma(sh[j]->dma_channel); | |
1da177e4 LT |
1962 | |
1963 | release_region(sh[j]->io_port, sh[j]->n_io_port); | |
1964 | scsi_unregister(sh[j]); | |
1965 | return FALSE; | |
1966 | } | |
1967 | ||
1968 | #include "scsi_module.c" | |
1969 | ||
1970 | #ifndef MODULE | |
1971 | __setup("u14-34f=", option_setup); | |
1972 | #endif /* end MODULE */ |