Commit | Line | Data |
---|---|---|
58751759 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
1da177e4 LT |
2 | |
3 | /* | |
4 | ||
5 | Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters | |
6 | ||
7 | Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com> | |
8 | ||
1da177e4 LT |
9 | |
10 | The author respectfully requests that any modifications to this software be | |
11 | sent directly to him for evaluation and testing. | |
12 | ||
13 | Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose | |
14 | advice has been invaluable, to David Gentzel, for writing the original Linux | |
15 | BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site. | |
16 | ||
17 | Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB | |
18 | Manager available as freely redistributable source code. | |
19 | ||
20 | */ | |
21 | ||
eeceec90 KA |
22 | #define blogic_drvr_version "2.1.17" |
23 | #define blogic_drvr_date "12 September 2013" | |
1da177e4 | 24 | |
1da177e4 LT |
25 | #include <linux/module.h> |
26 | #include <linux/init.h> | |
27 | #include <linux/interrupt.h> | |
28 | #include <linux/types.h> | |
29 | #include <linux/blkdev.h> | |
30 | #include <linux/delay.h> | |
31 | #include <linux/ioport.h> | |
32 | #include <linux/mm.h> | |
33 | #include <linux/stat.h> | |
34 | #include <linux/pci.h> | |
35 | #include <linux/spinlock.h> | |
60c904ae | 36 | #include <linux/jiffies.h> |
910638ae | 37 | #include <linux/dma-mapping.h> |
5a0e3ad6 | 38 | #include <linux/slab.h> |
1442f76d | 39 | #include <linux/msdos_partition.h> |
1da177e4 LT |
40 | #include <scsi/scsicam.h> |
41 | ||
42 | #include <asm/dma.h> | |
43 | #include <asm/io.h> | |
1da177e4 LT |
44 | |
45 | #include <scsi/scsi.h> | |
46 | #include <scsi/scsi_cmnd.h> | |
47 | #include <scsi/scsi_device.h> | |
48 | #include <scsi/scsi_host.h> | |
49 | #include <scsi/scsi_tcq.h> | |
50 | #include "BusLogic.h" | |
51 | #include "FlashPoint.c" | |
52 | ||
53 | #ifndef FAILURE | |
54 | #define FAILURE (-1) | |
55 | #endif | |
56 | ||
839cb99e | 57 | static struct scsi_host_template blogic_template; |
1da177e4 LT |
58 | |
59 | /* | |
839cb99e | 60 | blogic_drvr_options_count is a count of the number of BusLogic Driver |
1da177e4 LT |
61 | Options specifications provided via the Linux Kernel Command Line or via |
62 | the Loadable Kernel Module Installation Facility. | |
63 | */ | |
64 | ||
839cb99e | 65 | static int blogic_drvr_options_count; |
1da177e4 LT |
66 | |
67 | ||
68 | /* | |
839cb99e | 69 | blogic_drvr_options is an array of Driver Options structures representing |
1da177e4 LT |
70 | BusLogic Driver Options specifications provided via the Linux Kernel Command |
71 | Line or via the Loadable Kernel Module Installation Facility. | |
72 | */ | |
73 | ||
839cb99e | 74 | static struct blogic_drvr_options blogic_drvr_options[BLOGIC_MAX_ADAPTERS]; |
1da177e4 LT |
75 | |
76 | ||
77 | /* | |
78 | BusLogic can be assigned a string by insmod. | |
79 | */ | |
80 | ||
81 | MODULE_LICENSE("GPL"); | |
82 | #ifdef MODULE | |
83 | static char *BusLogic; | |
84 | module_param(BusLogic, charp, 0); | |
85 | #endif | |
86 | ||
87 | ||
88 | /* | |
839cb99e | 89 | blogic_probe_options is a set of Probe Options to be applied across |
1da177e4 LT |
90 | all BusLogic Host Adapters. |
91 | */ | |
92 | ||
839cb99e | 93 | static struct blogic_probe_options blogic_probe_options; |
1da177e4 LT |
94 | |
95 | ||
96 | /* | |
839cb99e | 97 | blogic_global_options is a set of Global Options to be applied across |
1da177e4 LT |
98 | all BusLogic Host Adapters. |
99 | */ | |
100 | ||
839cb99e | 101 | static struct blogic_global_options blogic_global_options; |
1da177e4 | 102 | |
839cb99e | 103 | static LIST_HEAD(blogic_host_list); |
1da177e4 LT |
104 | |
105 | /* | |
839cb99e | 106 | blogic_probeinfo_count is the number of entries in blogic_probeinfo_list. |
1da177e4 LT |
107 | */ |
108 | ||
839cb99e | 109 | static int blogic_probeinfo_count; |
1da177e4 LT |
110 | |
111 | ||
112 | /* | |
839cb99e | 113 | blogic_probeinfo_list is the list of I/O Addresses and Bus Probe Information |
1da177e4 LT |
114 | to be checked for potential BusLogic Host Adapters. It is initialized by |
115 | interrogating the PCI Configuration Space on PCI machines as well as from the | |
116 | list of standard BusLogic I/O Addresses. | |
117 | */ | |
118 | ||
839cb99e | 119 | static struct blogic_probeinfo *blogic_probeinfo_list; |
1da177e4 LT |
120 | |
121 | ||
122 | /* | |
839cb99e KA |
123 | blogic_cmd_failure_reason holds a string identifying the reason why a |
124 | call to blogic_cmd failed. It is only non-NULL when blogic_cmd | |
1da177e4 LT |
125 | returns a failure code. |
126 | */ | |
127 | ||
839cb99e | 128 | static char *blogic_cmd_failure_reason; |
1da177e4 LT |
129 | |
130 | /* | |
839cb99e | 131 | blogic_announce_drvr announces the Driver Version and Date, Author's |
1da177e4 LT |
132 | Name, Copyright Notice, and Electronic Mail Address. |
133 | */ | |
134 | ||
839cb99e | 135 | static void blogic_announce_drvr(struct blogic_adapter *adapter) |
1da177e4 | 136 | { |
839cb99e | 137 | blogic_announce("***** BusLogic SCSI Driver Version " blogic_drvr_version " of " blogic_drvr_date " *****\n", adapter); |
43622697 | 138 | blogic_announce("Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>\n", adapter); |
1da177e4 LT |
139 | } |
140 | ||
141 | ||
142 | /* | |
839cb99e | 143 | blogic_drvr_info returns the Host Adapter Name to identify this SCSI |
1da177e4 LT |
144 | Driver and Host Adapter. |
145 | */ | |
146 | ||
839cb99e | 147 | static const char *blogic_drvr_info(struct Scsi_Host *host) |
1da177e4 | 148 | { |
839cb99e KA |
149 | struct blogic_adapter *adapter = |
150 | (struct blogic_adapter *) host->hostdata; | |
151 | return adapter->full_model; | |
1da177e4 LT |
152 | } |
153 | ||
154 | /* | |
839cb99e KA |
155 | blogic_init_ccbs initializes a group of Command Control Blocks (CCBs) |
156 | for Host Adapter from the blk_size bytes located at blk_pointer. The newly | |
1da177e4 LT |
157 | created CCBs are added to Host Adapter's free list. |
158 | */ | |
159 | ||
839cb99e KA |
160 | static void blogic_init_ccbs(struct blogic_adapter *adapter, void *blk_pointer, |
161 | int blk_size, dma_addr_t blkp) | |
1da177e4 | 162 | { |
839cb99e | 163 | struct blogic_ccb *ccb = (struct blogic_ccb *) blk_pointer; |
1da177e4 | 164 | unsigned int offset = 0; |
839cb99e KA |
165 | memset(blk_pointer, 0, blk_size); |
166 | ccb->allocgrp_head = blkp; | |
167 | ccb->allocgrp_size = blk_size; | |
168 | while ((blk_size -= sizeof(struct blogic_ccb)) >= 0) { | |
169 | ccb->status = BLOGIC_CCB_FREE; | |
170 | ccb->adapter = adapter; | |
171 | ccb->dma_handle = (u32) blkp + offset; | |
172 | if (blogic_flashpoint_type(adapter)) { | |
173 | ccb->callback = blogic_qcompleted_ccb; | |
174 | ccb->base_addr = adapter->fpinfo.base_addr; | |
1da177e4 | 175 | } |
839cb99e KA |
176 | ccb->next = adapter->free_ccbs; |
177 | ccb->next_all = adapter->all_ccbs; | |
178 | adapter->free_ccbs = ccb; | |
179 | adapter->all_ccbs = ccb; | |
180 | adapter->alloc_ccbs++; | |
181 | ccb++; | |
182 | offset += sizeof(struct blogic_ccb); | |
1da177e4 LT |
183 | } |
184 | } | |
185 | ||
186 | ||
187 | /* | |
839cb99e | 188 | blogic_create_initccbs allocates the initial CCBs for Host Adapter. |
1da177e4 LT |
189 | */ |
190 | ||
839cb99e | 191 | static bool __init blogic_create_initccbs(struct blogic_adapter *adapter) |
1da177e4 | 192 | { |
839cb99e KA |
193 | int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb); |
194 | void *blk_pointer; | |
195 | dma_addr_t blkp; | |
196 | ||
197 | while (adapter->alloc_ccbs < adapter->initccbs) { | |
17a361b2 CH |
198 | blk_pointer = dma_alloc_coherent(&adapter->pci_device->dev, |
199 | blk_size, &blkp, GFP_KERNEL); | |
839cb99e KA |
200 | if (blk_pointer == NULL) { |
201 | blogic_err("UNABLE TO ALLOCATE CCB GROUP - DETACHING\n", | |
202 | adapter); | |
1da177e4 LT |
203 | return false; |
204 | } | |
839cb99e | 205 | blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp); |
1da177e4 LT |
206 | } |
207 | return true; | |
208 | } | |
209 | ||
210 | ||
211 | /* | |
839cb99e | 212 | blogic_destroy_ccbs deallocates the CCBs for Host Adapter. |
1da177e4 LT |
213 | */ |
214 | ||
839cb99e | 215 | static void blogic_destroy_ccbs(struct blogic_adapter *adapter) |
1da177e4 | 216 | { |
839cb99e KA |
217 | struct blogic_ccb *next_ccb = adapter->all_ccbs, *ccb, *lastccb = NULL; |
218 | adapter->all_ccbs = NULL; | |
219 | adapter->free_ccbs = NULL; | |
220 | while ((ccb = next_ccb) != NULL) { | |
221 | next_ccb = ccb->next_all; | |
222 | if (ccb->allocgrp_head) { | |
223 | if (lastccb) | |
17a361b2 | 224 | dma_free_coherent(&adapter->pci_device->dev, |
839cb99e KA |
225 | lastccb->allocgrp_size, lastccb, |
226 | lastccb->allocgrp_head); | |
227 | lastccb = ccb; | |
1da177e4 LT |
228 | } |
229 | } | |
839cb99e | 230 | if (lastccb) |
17a361b2 CH |
231 | dma_free_coherent(&adapter->pci_device->dev, |
232 | lastccb->allocgrp_size, lastccb, | |
233 | lastccb->allocgrp_head); | |
1da177e4 LT |
234 | } |
235 | ||
236 | ||
237 | /* | |
839cb99e | 238 | blogic_create_addlccbs allocates Additional CCBs for Host Adapter. If |
1da177e4 LT |
239 | allocation fails and there are no remaining CCBs available, the Driver Queue |
240 | Depth is decreased to a known safe value to avoid potential deadlocks when | |
241 | multiple host adapters share the same IRQ Channel. | |
242 | */ | |
243 | ||
839cb99e KA |
244 | static void blogic_create_addlccbs(struct blogic_adapter *adapter, |
245 | int addl_ccbs, bool print_success) | |
1da177e4 | 246 | { |
839cb99e KA |
247 | int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb); |
248 | int prev_alloc = adapter->alloc_ccbs; | |
249 | void *blk_pointer; | |
250 | dma_addr_t blkp; | |
251 | if (addl_ccbs <= 0) | |
1da177e4 | 252 | return; |
839cb99e | 253 | while (adapter->alloc_ccbs - prev_alloc < addl_ccbs) { |
17a361b2 CH |
254 | blk_pointer = dma_alloc_coherent(&adapter->pci_device->dev, |
255 | blk_size, &blkp, GFP_KERNEL); | |
839cb99e | 256 | if (blk_pointer == NULL) |
1da177e4 | 257 | break; |
839cb99e | 258 | blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp); |
1da177e4 | 259 | } |
839cb99e KA |
260 | if (adapter->alloc_ccbs > prev_alloc) { |
261 | if (print_success) | |
262 | blogic_notice("Allocated %d additional CCBs (total now %d)\n", adapter, adapter->alloc_ccbs - prev_alloc, adapter->alloc_ccbs); | |
1da177e4 LT |
263 | return; |
264 | } | |
839cb99e KA |
265 | blogic_notice("Failed to allocate additional CCBs\n", adapter); |
266 | if (adapter->drvr_qdepth > adapter->alloc_ccbs - adapter->tgt_count) { | |
267 | adapter->drvr_qdepth = adapter->alloc_ccbs - adapter->tgt_count; | |
268 | adapter->scsi_host->can_queue = adapter->drvr_qdepth; | |
1da177e4 LT |
269 | } |
270 | } | |
271 | ||
272 | /* | |
839cb99e | 273 | blogic_alloc_ccb allocates a CCB from Host Adapter's free list, |
1da177e4 LT |
274 | allocating more memory from the Kernel if necessary. The Host Adapter's |
275 | Lock should already have been acquired by the caller. | |
276 | */ | |
277 | ||
839cb99e | 278 | static struct blogic_ccb *blogic_alloc_ccb(struct blogic_adapter *adapter) |
1da177e4 | 279 | { |
839cb99e KA |
280 | static unsigned long serial; |
281 | struct blogic_ccb *ccb; | |
282 | ccb = adapter->free_ccbs; | |
283 | if (ccb != NULL) { | |
284 | ccb->serial = ++serial; | |
285 | adapter->free_ccbs = ccb->next; | |
286 | ccb->next = NULL; | |
287 | if (adapter->free_ccbs == NULL) | |
288 | blogic_create_addlccbs(adapter, adapter->inc_ccbs, | |
289 | true); | |
290 | return ccb; | |
291 | } | |
292 | blogic_create_addlccbs(adapter, adapter->inc_ccbs, true); | |
293 | ccb = adapter->free_ccbs; | |
294 | if (ccb == NULL) | |
1da177e4 | 295 | return NULL; |
839cb99e KA |
296 | ccb->serial = ++serial; |
297 | adapter->free_ccbs = ccb->next; | |
298 | ccb->next = NULL; | |
299 | return ccb; | |
1da177e4 LT |
300 | } |
301 | ||
302 | ||
303 | /* | |
839cb99e | 304 | blogic_dealloc_ccb deallocates a CCB, returning it to the Host Adapter's |
1da177e4 LT |
305 | free list. The Host Adapter's Lock should already have been acquired by the |
306 | caller. | |
307 | */ | |
308 | ||
eeceec90 | 309 | static void blogic_dealloc_ccb(struct blogic_ccb *ccb, int dma_unmap) |
1da177e4 | 310 | { |
839cb99e | 311 | struct blogic_adapter *adapter = ccb->adapter; |
1da177e4 | 312 | |
eeceec90 KA |
313 | if (ccb->command != NULL) |
314 | scsi_dma_unmap(ccb->command); | |
315 | if (dma_unmap) | |
17a361b2 CH |
316 | dma_unmap_single(&adapter->pci_device->dev, ccb->sensedata, |
317 | ccb->sense_datalen, DMA_FROM_DEVICE); | |
1da177e4 | 318 | |
839cb99e KA |
319 | ccb->command = NULL; |
320 | ccb->status = BLOGIC_CCB_FREE; | |
321 | ccb->next = adapter->free_ccbs; | |
322 | adapter->free_ccbs = ccb; | |
1da177e4 LT |
323 | } |
324 | ||
325 | ||
326 | /* | |
839cb99e KA |
327 | blogic_cmd sends the command opcode to adapter, optionally |
328 | providing paramlen bytes of param and receiving at most | |
329 | replylen bytes of reply; any excess reply data is received but | |
1da177e4 LT |
330 | discarded. |
331 | ||
332 | On success, this function returns the number of reply bytes read from | |
333 | the Host Adapter (including any discarded data); on failure, it returns | |
334 | -1 if the command was invalid, or -2 if a timeout occurred. | |
335 | ||
839cb99e | 336 | blogic_cmd is called exclusively during host adapter detection and |
1da177e4 LT |
337 | initialization, so performance and latency are not critical, and exclusive |
338 | access to the Host Adapter hardware is assumed. Once the host adapter and | |
339 | driver are initialized, the only Host Adapter command that is issued is the | |
340 | single byte Execute Mailbox Command operation code, which does not require | |
341 | waiting for the Host Adapter Ready bit to be set in the Status Register. | |
342 | */ | |
343 | ||
839cb99e KA |
344 | static int blogic_cmd(struct blogic_adapter *adapter, enum blogic_opcode opcode, |
345 | void *param, int paramlen, void *reply, int replylen) | |
1da177e4 | 346 | { |
839cb99e KA |
347 | unsigned char *param_p = (unsigned char *) param; |
348 | unsigned char *reply_p = (unsigned char *) reply; | |
349 | union blogic_stat_reg statusreg; | |
350 | union blogic_int_reg intreg; | |
351 | unsigned long processor_flag = 0; | |
352 | int reply_b = 0, result; | |
353 | long timeout; | |
1da177e4 LT |
354 | /* |
355 | Clear out the Reply Data if provided. | |
356 | */ | |
839cb99e KA |
357 | if (replylen > 0) |
358 | memset(reply, 0, replylen); | |
1da177e4 | 359 | /* |
839cb99e KA |
360 | If the IRQ Channel has not yet been acquired, then interrupts |
361 | must be disabled while issuing host adapter commands since a | |
362 | Command Complete interrupt could occur if the IRQ Channel was | |
363 | previously enabled by another BusLogic Host Adapter or another | |
364 | driver sharing the same IRQ Channel. | |
1da177e4 | 365 | */ |
839cb99e KA |
366 | if (!adapter->irq_acquired) |
367 | local_irq_save(processor_flag); | |
1da177e4 | 368 | /* |
839cb99e KA |
369 | Wait for the Host Adapter Ready bit to be set and the |
370 | Command/Parameter Register Busy bit to be reset in the Status | |
371 | Register. | |
1da177e4 | 372 | */ |
839cb99e KA |
373 | timeout = 10000; |
374 | while (--timeout >= 0) { | |
375 | statusreg.all = blogic_rdstatus(adapter); | |
376 | if (statusreg.sr.adapter_ready && !statusreg.sr.cmd_param_busy) | |
1da177e4 LT |
377 | break; |
378 | udelay(100); | |
379 | } | |
839cb99e KA |
380 | if (timeout < 0) { |
381 | blogic_cmd_failure_reason = | |
382 | "Timeout waiting for Host Adapter Ready"; | |
383 | result = -2; | |
384 | goto done; | |
1da177e4 LT |
385 | } |
386 | /* | |
839cb99e | 387 | Write the opcode to the Command/Parameter Register. |
1da177e4 | 388 | */ |
839cb99e KA |
389 | adapter->adapter_cmd_complete = false; |
390 | blogic_setcmdparam(adapter, opcode); | |
1da177e4 LT |
391 | /* |
392 | Write any additional Parameter Bytes. | |
393 | */ | |
839cb99e KA |
394 | timeout = 10000; |
395 | while (paramlen > 0 && --timeout >= 0) { | |
1da177e4 | 396 | /* |
839cb99e KA |
397 | Wait 100 microseconds to give the Host Adapter enough |
398 | time to determine whether the last value written to the | |
399 | Command/Parameter Register was valid or not. If the | |
400 | Command Complete bit is set in the Interrupt Register, | |
401 | then the Command Invalid bit in the Status Register will | |
402 | be reset if the Operation Code or Parameter was valid | |
403 | and the command has completed, or set if the Operation | |
404 | Code or Parameter was invalid. If the Data In Register | |
405 | Ready bit is set in the Status Register, then the | |
406 | Operation Code was valid, and data is waiting to be read | |
407 | back from the Host Adapter. Otherwise, wait for the | |
408 | Command/Parameter Register Busy bit in the Status | |
409 | Register to be reset. | |
1da177e4 LT |
410 | */ |
411 | udelay(100); | |
839cb99e KA |
412 | intreg.all = blogic_rdint(adapter); |
413 | statusreg.all = blogic_rdstatus(adapter); | |
414 | if (intreg.ir.cmd_complete) | |
1da177e4 | 415 | break; |
839cb99e | 416 | if (adapter->adapter_cmd_complete) |
1da177e4 | 417 | break; |
839cb99e | 418 | if (statusreg.sr.datain_ready) |
1da177e4 | 419 | break; |
839cb99e | 420 | if (statusreg.sr.cmd_param_busy) |
1da177e4 | 421 | continue; |
839cb99e KA |
422 | blogic_setcmdparam(adapter, *param_p++); |
423 | paramlen--; | |
424 | } | |
425 | if (timeout < 0) { | |
426 | blogic_cmd_failure_reason = | |
427 | "Timeout waiting for Parameter Acceptance"; | |
428 | result = -2; | |
429 | goto done; | |
430 | } | |
431 | /* | |
432 | The Modify I/O Address command does not cause a Command Complete | |
433 | Interrupt. | |
434 | */ | |
435 | if (opcode == BLOGIC_MOD_IOADDR) { | |
436 | statusreg.all = blogic_rdstatus(adapter); | |
437 | if (statusreg.sr.cmd_invalid) { | |
438 | blogic_cmd_failure_reason = | |
439 | "Modify I/O Address Invalid"; | |
440 | result = -1; | |
441 | goto done; | |
1da177e4 | 442 | } |
839cb99e | 443 | if (blogic_global_options.trace_config) |
43622697 | 444 | blogic_notice("blogic_cmd(%02X) Status = %02X: (Modify I/O Address)\n", adapter, opcode, statusreg.all); |
839cb99e KA |
445 | result = 0; |
446 | goto done; | |
1da177e4 LT |
447 | } |
448 | /* | |
449 | Select an appropriate timeout value for awaiting command completion. | |
450 | */ | |
839cb99e KA |
451 | switch (opcode) { |
452 | case BLOGIC_INQ_DEV0TO7: | |
453 | case BLOGIC_INQ_DEV8TO15: | |
454 | case BLOGIC_INQ_DEV: | |
1da177e4 | 455 | /* Approximately 60 seconds. */ |
839cb99e | 456 | timeout = 60 * 10000; |
1da177e4 LT |
457 | break; |
458 | default: | |
459 | /* Approximately 1 second. */ | |
839cb99e | 460 | timeout = 10000; |
1da177e4 LT |
461 | break; |
462 | } | |
463 | /* | |
839cb99e KA |
464 | Receive any Reply Bytes, waiting for either the Command |
465 | Complete bit to be set in the Interrupt Register, or for the | |
466 | Interrupt Handler to set the Host Adapter Command Completed | |
467 | bit in the Host Adapter structure. | |
1da177e4 | 468 | */ |
839cb99e KA |
469 | while (--timeout >= 0) { |
470 | intreg.all = blogic_rdint(adapter); | |
471 | statusreg.all = blogic_rdstatus(adapter); | |
472 | if (intreg.ir.cmd_complete) | |
1da177e4 | 473 | break; |
839cb99e | 474 | if (adapter->adapter_cmd_complete) |
1da177e4 | 475 | break; |
839cb99e KA |
476 | if (statusreg.sr.datain_ready) { |
477 | if (++reply_b <= replylen) | |
478 | *reply_p++ = blogic_rddatain(adapter); | |
1da177e4 | 479 | else |
839cb99e | 480 | blogic_rddatain(adapter); |
1da177e4 | 481 | } |
839cb99e KA |
482 | if (opcode == BLOGIC_FETCH_LOCALRAM && |
483 | statusreg.sr.adapter_ready) | |
1da177e4 LT |
484 | break; |
485 | udelay(100); | |
486 | } | |
839cb99e KA |
487 | if (timeout < 0) { |
488 | blogic_cmd_failure_reason = | |
489 | "Timeout waiting for Command Complete"; | |
490 | result = -2; | |
491 | goto done; | |
1da177e4 LT |
492 | } |
493 | /* | |
494 | Clear any pending Command Complete Interrupt. | |
495 | */ | |
839cb99e | 496 | blogic_intreset(adapter); |
1da177e4 LT |
497 | /* |
498 | Provide tracing information if requested. | |
499 | */ | |
839cb99e | 500 | if (blogic_global_options.trace_config) { |
1da177e4 | 501 | int i; |
839cb99e KA |
502 | blogic_notice("blogic_cmd(%02X) Status = %02X: %2d ==> %2d:", |
503 | adapter, opcode, statusreg.all, replylen, | |
504 | reply_b); | |
505 | if (replylen > reply_b) | |
506 | replylen = reply_b; | |
507 | for (i = 0; i < replylen; i++) | |
508 | blogic_notice(" %02X", adapter, | |
509 | ((unsigned char *) reply)[i]); | |
510 | blogic_notice("\n", adapter); | |
1da177e4 LT |
511 | } |
512 | /* | |
513 | Process Command Invalid conditions. | |
514 | */ | |
839cb99e | 515 | if (statusreg.sr.cmd_invalid) { |
1da177e4 | 516 | /* |
839cb99e KA |
517 | Some early BusLogic Host Adapters may not recover |
518 | properly from a Command Invalid condition, so if this | |
519 | appears to be the case, a Soft Reset is issued to the | |
520 | Host Adapter. Potentially invalid commands are never | |
521 | attempted after Mailbox Initialization is performed, | |
522 | so there should be no Host Adapter state lost by a | |
1da177e4 LT |
523 | Soft Reset in response to a Command Invalid condition. |
524 | */ | |
525 | udelay(1000); | |
839cb99e KA |
526 | statusreg.all = blogic_rdstatus(adapter); |
527 | if (statusreg.sr.cmd_invalid || statusreg.sr.rsvd || | |
528 | statusreg.sr.datain_ready || | |
529 | statusreg.sr.cmd_param_busy || | |
530 | !statusreg.sr.adapter_ready || | |
531 | !statusreg.sr.init_reqd || | |
532 | statusreg.sr.diag_active || | |
533 | statusreg.sr.diag_failed) { | |
534 | blogic_softreset(adapter); | |
1da177e4 LT |
535 | udelay(1000); |
536 | } | |
839cb99e KA |
537 | blogic_cmd_failure_reason = "Command Invalid"; |
538 | result = -1; | |
539 | goto done; | |
1da177e4 LT |
540 | } |
541 | /* | |
542 | Handle Excess Parameters Supplied conditions. | |
543 | */ | |
839cb99e KA |
544 | if (paramlen > 0) { |
545 | blogic_cmd_failure_reason = "Excess Parameters Supplied"; | |
546 | result = -1; | |
547 | goto done; | |
1da177e4 LT |
548 | } |
549 | /* | |
550 | Indicate the command completed successfully. | |
551 | */ | |
839cb99e KA |
552 | blogic_cmd_failure_reason = NULL; |
553 | result = reply_b; | |
1da177e4 LT |
554 | /* |
555 | Restore the interrupt status if necessary and return. | |
556 | */ | |
839cb99e KA |
557 | done: |
558 | if (!adapter->irq_acquired) | |
559 | local_irq_restore(processor_flag); | |
560 | return result; | |
1da177e4 LT |
561 | } |
562 | ||
563 | ||
1da177e4 | 564 | /* |
839cb99e | 565 | blogic_sort_probeinfo sorts a section of blogic_probeinfo_list in order |
1da177e4 LT |
566 | of increasing PCI Bus and Device Number. |
567 | */ | |
568 | ||
839cb99e KA |
569 | static void __init blogic_sort_probeinfo(struct blogic_probeinfo |
570 | *probeinfo_list, int probeinfo_cnt) | |
1da177e4 | 571 | { |
839cb99e KA |
572 | int last_exchange = probeinfo_cnt - 1, bound, j; |
573 | ||
574 | while (last_exchange > 0) { | |
575 | bound = last_exchange; | |
576 | last_exchange = 0; | |
577 | for (j = 0; j < bound; j++) { | |
578 | struct blogic_probeinfo *probeinfo1 = | |
579 | &probeinfo_list[j]; | |
580 | struct blogic_probeinfo *probeinfo2 = | |
581 | &probeinfo_list[j + 1]; | |
582 | if (probeinfo1->bus > probeinfo2->bus || | |
583 | (probeinfo1->bus == probeinfo2->bus && | |
584 | (probeinfo1->dev > probeinfo2->dev))) { | |
585 | struct blogic_probeinfo tmp_probeinfo; | |
586 | ||
587 | memcpy(&tmp_probeinfo, probeinfo1, | |
588 | sizeof(struct blogic_probeinfo)); | |
589 | memcpy(probeinfo1, probeinfo2, | |
590 | sizeof(struct blogic_probeinfo)); | |
591 | memcpy(probeinfo2, &tmp_probeinfo, | |
592 | sizeof(struct blogic_probeinfo)); | |
593 | last_exchange = j; | |
1da177e4 LT |
594 | } |
595 | } | |
596 | } | |
597 | } | |
598 | ||
599 | ||
600 | /* | |
839cb99e | 601 | blogic_init_mm_probeinfo initializes the list of I/O Address |
1da177e4 LT |
602 | and Bus Probe Information to be checked for potential BusLogic MultiMaster |
603 | SCSI Host Adapters by interrogating the PCI Configuration Space on PCI | |
604 | machines as well as from the list of standard BusLogic MultiMaster ISA | |
605 | I/O Addresses. It returns the number of PCI MultiMaster Host Adapters found. | |
606 | */ | |
607 | ||
839cb99e | 608 | static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter) |
1da177e4 | 609 | { |
839cb99e KA |
610 | struct blogic_probeinfo *pr_probeinfo = |
611 | &blogic_probeinfo_list[blogic_probeinfo_count]; | |
612 | int nonpr_mmindex = blogic_probeinfo_count + 1; | |
613 | int nonpr_mmcount = 0, mmcount = 0; | |
614 | bool force_scan_order = false; | |
615 | bool force_scan_order_checked = false; | |
839cb99e | 616 | struct pci_dev *pci_device = NULL; |
1da177e4 | 617 | int i; |
839cb99e | 618 | if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS) |
1da177e4 | 619 | return 0; |
839cb99e | 620 | blogic_probeinfo_count++; |
839cb99e KA |
621 | /* |
622 | Iterate over the MultiMaster PCI Host Adapters. For each | |
623 | enumerated host adapter, determine whether its ISA Compatible | |
624 | I/O Port is enabled and if so, whether it is assigned the | |
625 | Primary I/O Address. A host adapter that is assigned the | |
626 | Primary I/O Address will always be the preferred boot device. | |
627 | The MultiMaster BIOS will first recognize a host adapter at | |
628 | the Primary I/O Address, then any other PCI host adapters, | |
629 | and finally any host adapters located at the remaining | |
630 | standard ISA I/O Addresses. When a PCI host adapter is found | |
631 | with its ISA Compatible I/O Port enabled, a command is issued | |
632 | to disable the ISA Compatible I/O Port, and it is noted that the | |
1da177e4 LT |
633 | particular standard ISA I/O Address need not be probed. |
634 | */ | |
839cb99e KA |
635 | pr_probeinfo->io_addr = 0; |
636 | while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, | |
637 | PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER, | |
638 | pci_device)) != NULL) { | |
6541932e | 639 | struct blogic_adapter *host_adapter = adapter; |
839cb99e KA |
640 | struct blogic_adapter_info adapter_info; |
641 | enum blogic_isa_ioport mod_ioaddr_req; | |
642 | unsigned char bus; | |
643 | unsigned char device; | |
644 | unsigned int irq_ch; | |
645 | unsigned long base_addr0; | |
646 | unsigned long base_addr1; | |
647 | unsigned long io_addr; | |
648 | unsigned long pci_addr; | |
649 | ||
650 | if (pci_enable_device(pci_device)) | |
1da177e4 LT |
651 | continue; |
652 | ||
17a361b2 | 653 | if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32))) |
1da177e4 LT |
654 | continue; |
655 | ||
839cb99e KA |
656 | bus = pci_device->bus->number; |
657 | device = pci_device->devfn >> 3; | |
658 | irq_ch = pci_device->irq; | |
659 | io_addr = base_addr0 = pci_resource_start(pci_device, 0); | |
660 | pci_addr = base_addr1 = pci_resource_start(pci_device, 1); | |
1da177e4 | 661 | |
839cb99e | 662 | if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) { |
43622697 CIK |
663 | blogic_err("BusLogic: Base Address0 0x%lX not I/O for MultiMaster Host Adapter\n", NULL, base_addr0); |
664 | blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr); | |
1da177e4 LT |
665 | continue; |
666 | } | |
839cb99e | 667 | if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) { |
43622697 CIK |
668 | blogic_err("BusLogic: Base Address1 0x%lX not Memory for MultiMaster Host Adapter\n", NULL, base_addr1); |
669 | blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr); | |
1da177e4 LT |
670 | continue; |
671 | } | |
839cb99e | 672 | if (irq_ch == 0) { |
43622697 CIK |
673 | blogic_err("BusLogic: IRQ Channel %d invalid for MultiMaster Host Adapter\n", NULL, irq_ch); |
674 | blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr); | |
1da177e4 LT |
675 | continue; |
676 | } | |
839cb99e | 677 | if (blogic_global_options.trace_probe) { |
43622697 CIK |
678 | blogic_notice("BusLogic: PCI MultiMaster Host Adapter detected at\n", NULL); |
679 | blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX\n", NULL, bus, device, io_addr, pci_addr); | |
1da177e4 LT |
680 | } |
681 | /* | |
682 | Issue the Inquire PCI Host Adapter Information command to determine | |
683 | the ISA Compatible I/O Port. If the ISA Compatible I/O Port is | |
684 | known and enabled, note that the particular Standard ISA I/O | |
685 | Address should not be probed. | |
686 | */ | |
6541932e KA |
687 | host_adapter->io_addr = io_addr; |
688 | blogic_intreset(host_adapter); | |
689 | if (blogic_cmd(host_adapter, BLOGIC_INQ_PCI_INFO, NULL, 0, | |
8cad3b66 CH |
690 | &adapter_info, sizeof(adapter_info)) != |
691 | sizeof(adapter_info)) | |
839cb99e | 692 | adapter_info.isa_port = BLOGIC_IO_DISABLE; |
1da177e4 | 693 | /* |
839cb99e KA |
694 | Issue the Modify I/O Address command to disable the |
695 | ISA Compatible I/O Port. On PCI Host Adapters, the | |
696 | Modify I/O Address command allows modification of the | |
697 | ISA compatible I/O Address that the Host Adapter | |
698 | responds to; it does not affect the PCI compliant | |
699 | I/O Address assigned at system initialization. | |
1da177e4 | 700 | */ |
839cb99e | 701 | mod_ioaddr_req = BLOGIC_IO_DISABLE; |
6541932e | 702 | blogic_cmd(host_adapter, BLOGIC_MOD_IOADDR, &mod_ioaddr_req, |
839cb99e | 703 | sizeof(mod_ioaddr_req), NULL, 0); |
1da177e4 | 704 | /* |
839cb99e KA |
705 | For the first MultiMaster Host Adapter enumerated, |
706 | issue the Fetch Host Adapter Local RAM command to read | |
707 | byte 45 of the AutoSCSI area, for the setting of the | |
708 | "Use Bus And Device # For PCI Scanning Seq." option. | |
709 | Issue the Inquire Board ID command since this option is | |
1da177e4 LT |
710 | only valid for the BT-948/958/958D. |
711 | */ | |
839cb99e KA |
712 | if (!force_scan_order_checked) { |
713 | struct blogic_fetch_localram fetch_localram; | |
714 | struct blogic_autoscsi_byte45 autoscsi_byte45; | |
715 | struct blogic_board_id id; | |
716 | ||
717 | fetch_localram.offset = BLOGIC_AUTOSCSI_BASE + 45; | |
718 | fetch_localram.count = sizeof(autoscsi_byte45); | |
6541932e | 719 | blogic_cmd(host_adapter, BLOGIC_FETCH_LOCALRAM, |
839cb99e KA |
720 | &fetch_localram, sizeof(fetch_localram), |
721 | &autoscsi_byte45, | |
722 | sizeof(autoscsi_byte45)); | |
6541932e KA |
723 | blogic_cmd(host_adapter, BLOGIC_GET_BOARD_ID, NULL, 0, |
724 | &id, sizeof(id)); | |
839cb99e KA |
725 | if (id.fw_ver_digit1 == '5') |
726 | force_scan_order = | |
727 | autoscsi_byte45.force_scan_order; | |
728 | force_scan_order_checked = true; | |
1da177e4 LT |
729 | } |
730 | /* | |
839cb99e KA |
731 | Determine whether this MultiMaster Host Adapter has its |
732 | ISA Compatible I/O Port enabled and is assigned the | |
733 | Primary I/O Address. If it does, then it is the Primary | |
734 | MultiMaster Host Adapter and must be recognized first. | |
735 | If it does not, then it is added to the list for probing | |
736 | after any Primary MultiMaster Host Adapter is probed. | |
1da177e4 | 737 | */ |
839cb99e KA |
738 | if (adapter_info.isa_port == BLOGIC_IO_330) { |
739 | pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER; | |
740 | pr_probeinfo->adapter_bus_type = BLOGIC_PCI_BUS; | |
741 | pr_probeinfo->io_addr = io_addr; | |
742 | pr_probeinfo->pci_addr = pci_addr; | |
743 | pr_probeinfo->bus = bus; | |
744 | pr_probeinfo->dev = device; | |
745 | pr_probeinfo->irq_ch = irq_ch; | |
746 | pr_probeinfo->pci_device = pci_dev_get(pci_device); | |
747 | mmcount++; | |
748 | } else if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) { | |
749 | struct blogic_probeinfo *probeinfo = | |
750 | &blogic_probeinfo_list[blogic_probeinfo_count++]; | |
751 | probeinfo->adapter_type = BLOGIC_MULTIMASTER; | |
752 | probeinfo->adapter_bus_type = BLOGIC_PCI_BUS; | |
753 | probeinfo->io_addr = io_addr; | |
754 | probeinfo->pci_addr = pci_addr; | |
755 | probeinfo->bus = bus; | |
756 | probeinfo->dev = device; | |
757 | probeinfo->irq_ch = irq_ch; | |
758 | probeinfo->pci_device = pci_dev_get(pci_device); | |
759 | nonpr_mmcount++; | |
760 | mmcount++; | |
1da177e4 | 761 | } else |
43622697 | 762 | blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL); |
839cb99e KA |
763 | } |
764 | /* | |
765 | If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq." | |
766 | option is ON for the first enumerated MultiMaster Host Adapter, | |
767 | and if that host adapter is a BT-948/958/958D, then the | |
768 | MultiMaster BIOS will recognize MultiMaster Host Adapters in | |
769 | the order of increasing PCI Bus and Device Number. In that case, | |
770 | sort the probe information into the same order the BIOS uses. | |
771 | If this option is OFF, then the MultiMaster BIOS will recognize | |
772 | MultiMaster Host Adapters in the order they are enumerated by | |
773 | the PCI BIOS, and hence no sorting is necessary. | |
774 | */ | |
775 | if (force_scan_order) | |
776 | blogic_sort_probeinfo(&blogic_probeinfo_list[nonpr_mmindex], | |
777 | nonpr_mmcount); | |
1da177e4 LT |
778 | /* |
779 | Iterate over the older non-compliant MultiMaster PCI Host Adapters, | |
780 | noting the PCI bus location and assigned IRQ Channel. | |
781 | */ | |
839cb99e KA |
782 | pci_device = NULL; |
783 | while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, | |
784 | PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC, | |
785 | pci_device)) != NULL) { | |
786 | unsigned char bus; | |
787 | unsigned char device; | |
788 | unsigned int irq_ch; | |
789 | unsigned long io_addr; | |
1da177e4 | 790 | |
839cb99e | 791 | if (pci_enable_device(pci_device)) |
1da177e4 LT |
792 | continue; |
793 | ||
17a361b2 | 794 | if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32))) |
1da177e4 LT |
795 | continue; |
796 | ||
839cb99e KA |
797 | bus = pci_device->bus->number; |
798 | device = pci_device->devfn >> 3; | |
799 | irq_ch = pci_device->irq; | |
800 | io_addr = pci_resource_start(pci_device, 0); | |
1da177e4 | 801 | |
839cb99e | 802 | if (io_addr == 0 || irq_ch == 0) |
1da177e4 | 803 | continue; |
839cb99e KA |
804 | for (i = 0; i < blogic_probeinfo_count; i++) { |
805 | struct blogic_probeinfo *probeinfo = | |
806 | &blogic_probeinfo_list[i]; | |
807 | if (probeinfo->io_addr == io_addr && | |
808 | probeinfo->adapter_type == BLOGIC_MULTIMASTER) { | |
809 | probeinfo->adapter_bus_type = BLOGIC_PCI_BUS; | |
810 | probeinfo->pci_addr = 0; | |
811 | probeinfo->bus = bus; | |
812 | probeinfo->dev = device; | |
813 | probeinfo->irq_ch = irq_ch; | |
814 | probeinfo->pci_device = pci_dev_get(pci_device); | |
1da177e4 LT |
815 | break; |
816 | } | |
817 | } | |
818 | } | |
839cb99e | 819 | return mmcount; |
1da177e4 LT |
820 | } |
821 | ||
822 | ||
823 | /* | |
839cb99e | 824 | blogic_init_fp_probeinfo initializes the list of I/O Address |
1da177e4 LT |
825 | and Bus Probe Information to be checked for potential BusLogic FlashPoint |
826 | Host Adapters by interrogating the PCI Configuration Space. It returns the | |
827 | number of FlashPoint Host Adapters found. | |
828 | */ | |
829 | ||
839cb99e | 830 | static int __init blogic_init_fp_probeinfo(struct blogic_adapter *adapter) |
1da177e4 | 831 | { |
839cb99e KA |
832 | int fpindex = blogic_probeinfo_count, fpcount = 0; |
833 | struct pci_dev *pci_device = NULL; | |
1da177e4 LT |
834 | /* |
835 | Interrogate PCI Configuration Space for any FlashPoint Host Adapters. | |
836 | */ | |
839cb99e KA |
837 | while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, |
838 | PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT, | |
839 | pci_device)) != NULL) { | |
840 | unsigned char bus; | |
841 | unsigned char device; | |
842 | unsigned int irq_ch; | |
843 | unsigned long base_addr0; | |
844 | unsigned long base_addr1; | |
845 | unsigned long io_addr; | |
846 | unsigned long pci_addr; | |
847 | ||
848 | if (pci_enable_device(pci_device)) | |
1da177e4 LT |
849 | continue; |
850 | ||
17a361b2 | 851 | if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32))) |
1da177e4 LT |
852 | continue; |
853 | ||
839cb99e KA |
854 | bus = pci_device->bus->number; |
855 | device = pci_device->devfn >> 3; | |
856 | irq_ch = pci_device->irq; | |
857 | io_addr = base_addr0 = pci_resource_start(pci_device, 0); | |
858 | pci_addr = base_addr1 = pci_resource_start(pci_device, 1); | |
78b4b05d | 859 | #ifdef CONFIG_SCSI_FLASHPOINT |
839cb99e | 860 | if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) { |
43622697 CIK |
861 | blogic_err("BusLogic: Base Address0 0x%lX not I/O for FlashPoint Host Adapter\n", NULL, base_addr0); |
862 | blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr); | |
1da177e4 LT |
863 | continue; |
864 | } | |
839cb99e | 865 | if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) { |
43622697 CIK |
866 | blogic_err("BusLogic: Base Address1 0x%lX not Memory for FlashPoint Host Adapter\n", NULL, base_addr1); |
867 | blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr); | |
1da177e4 LT |
868 | continue; |
869 | } | |
839cb99e | 870 | if (irq_ch == 0) { |
43622697 CIK |
871 | blogic_err("BusLogic: IRQ Channel %d invalid for FlashPoint Host Adapter\n", NULL, irq_ch); |
872 | blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr); | |
1da177e4 LT |
873 | continue; |
874 | } | |
839cb99e | 875 | if (blogic_global_options.trace_probe) { |
43622697 CIK |
876 | blogic_notice("BusLogic: FlashPoint Host Adapter detected at\n", NULL); |
877 | blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX\n", NULL, bus, device, io_addr, pci_addr); | |
1da177e4 | 878 | } |
839cb99e KA |
879 | if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) { |
880 | struct blogic_probeinfo *probeinfo = | |
881 | &blogic_probeinfo_list[blogic_probeinfo_count++]; | |
882 | probeinfo->adapter_type = BLOGIC_FLASHPOINT; | |
883 | probeinfo->adapter_bus_type = BLOGIC_PCI_BUS; | |
884 | probeinfo->io_addr = io_addr; | |
885 | probeinfo->pci_addr = pci_addr; | |
886 | probeinfo->bus = bus; | |
887 | probeinfo->dev = device; | |
888 | probeinfo->irq_ch = irq_ch; | |
889 | probeinfo->pci_device = pci_dev_get(pci_device); | |
890 | fpcount++; | |
1da177e4 | 891 | } else |
43622697 | 892 | blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL); |
1da177e4 | 893 | #else |
43622697 CIK |
894 | blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", NULL, bus, device); |
895 | blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, irq %d, but FlashPoint\n", NULL, io_addr, pci_addr, irq_ch); | |
896 | blogic_err("BusLogic: support was omitted in this kernel configuration.\n", NULL); | |
1da177e4 LT |
897 | #endif |
898 | } | |
899 | /* | |
900 | The FlashPoint BIOS will scan for FlashPoint Host Adapters in the order of | |
901 | increasing PCI Bus and Device Number, so sort the probe information into | |
902 | the same order the BIOS uses. | |
903 | */ | |
839cb99e KA |
904 | blogic_sort_probeinfo(&blogic_probeinfo_list[fpindex], fpcount); |
905 | return fpcount; | |
1da177e4 LT |
906 | } |
907 | ||
908 | ||
909 | /* | |
839cb99e | 910 | blogic_init_probeinfo_list initializes the list of I/O Address and Bus |
1da177e4 LT |
911 | Probe Information to be checked for potential BusLogic SCSI Host Adapters by |
912 | interrogating the PCI Configuration Space on PCI machines as well as from the | |
913 | list of standard BusLogic MultiMaster ISA I/O Addresses. By default, if both | |
914 | FlashPoint and PCI MultiMaster Host Adapters are present, this driver will | |
915 | probe for FlashPoint Host Adapters first unless the BIOS primary disk is | |
916 | controlled by the first PCI MultiMaster Host Adapter, in which case | |
917 | MultiMaster Host Adapters will be probed first. The BusLogic Driver Options | |
918 | specifications "MultiMasterFirst" and "FlashPointFirst" can be used to force | |
919 | a particular probe order. | |
920 | */ | |
921 | ||
839cb99e | 922 | static void __init blogic_init_probeinfo_list(struct blogic_adapter *adapter) |
1da177e4 LT |
923 | { |
924 | /* | |
839cb99e KA |
925 | If a PCI BIOS is present, interrogate it for MultiMaster and |
926 | FlashPoint Host Adapters; otherwise, default to the standard | |
927 | ISA MultiMaster probe. | |
928 | */ | |
929 | if (!blogic_probe_options.noprobe_pci) { | |
930 | if (blogic_probe_options.multimaster_first) { | |
931 | blogic_init_mm_probeinfo(adapter); | |
932 | blogic_init_fp_probeinfo(adapter); | |
933 | } else if (blogic_probe_options.flashpoint_first) { | |
934 | blogic_init_fp_probeinfo(adapter); | |
935 | blogic_init_mm_probeinfo(adapter); | |
1da177e4 | 936 | } else { |
839cb99e KA |
937 | int fpcount = blogic_init_fp_probeinfo(adapter); |
938 | int mmcount = blogic_init_mm_probeinfo(adapter); | |
939 | if (fpcount > 0 && mmcount > 0) { | |
940 | struct blogic_probeinfo *probeinfo = | |
941 | &blogic_probeinfo_list[fpcount]; | |
942 | struct blogic_adapter *myadapter = adapter; | |
943 | struct blogic_fetch_localram fetch_localram; | |
944 | struct blogic_bios_drvmap d0_mapbyte; | |
945 | ||
946 | while (probeinfo->adapter_bus_type != | |
947 | BLOGIC_PCI_BUS) | |
948 | probeinfo++; | |
949 | myadapter->io_addr = probeinfo->io_addr; | |
950 | fetch_localram.offset = | |
951 | BLOGIC_BIOS_BASE + BLOGIC_BIOS_DRVMAP; | |
952 | fetch_localram.count = sizeof(d0_mapbyte); | |
953 | blogic_cmd(myadapter, BLOGIC_FETCH_LOCALRAM, | |
954 | &fetch_localram, | |
955 | sizeof(fetch_localram), | |
956 | &d0_mapbyte, | |
957 | sizeof(d0_mapbyte)); | |
1da177e4 | 958 | /* |
839cb99e KA |
959 | If the Map Byte for BIOS Drive 0 indicates |
960 | that BIOS Drive 0 is controlled by this | |
961 | PCI MultiMaster Host Adapter, then reverse | |
962 | the probe order so that MultiMaster Host | |
963 | Adapters are probed before FlashPoint Host | |
964 | Adapters. | |
1da177e4 | 965 | */ |
839cb99e KA |
966 | if (d0_mapbyte.diskgeom != BLOGIC_BIOS_NODISK) { |
967 | struct blogic_probeinfo saved_probeinfo[BLOGIC_MAX_ADAPTERS]; | |
968 | int mmcount = blogic_probeinfo_count - fpcount; | |
969 | ||
970 | memcpy(saved_probeinfo, | |
971 | blogic_probeinfo_list, | |
972 | blogic_probeinfo_count * sizeof(struct blogic_probeinfo)); | |
973 | memcpy(&blogic_probeinfo_list[0], | |
974 | &saved_probeinfo[fpcount], | |
975 | mmcount * sizeof(struct blogic_probeinfo)); | |
976 | memcpy(&blogic_probeinfo_list[mmcount], | |
977 | &saved_probeinfo[0], | |
978 | fpcount * sizeof(struct blogic_probeinfo)); | |
1da177e4 LT |
979 | } |
980 | } | |
981 | } | |
839cb99e | 982 | } |
1da177e4 LT |
983 | } |
984 | ||
985 | ||
1da177e4 | 986 | /* |
839cb99e | 987 | blogic_failure prints a standardized error message, and then returns false. |
1da177e4 LT |
988 | */ |
989 | ||
839cb99e | 990 | static bool blogic_failure(struct blogic_adapter *adapter, char *msg) |
1da177e4 | 991 | { |
839cb99e KA |
992 | blogic_announce_drvr(adapter); |
993 | if (adapter->adapter_bus_type == BLOGIC_PCI_BUS) { | |
994 | blogic_err("While configuring BusLogic PCI Host Adapter at\n", | |
995 | adapter); | |
43622697 | 996 | blogic_err("Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX:\n", adapter, adapter->bus, adapter->dev, adapter->io_addr, adapter->pci_addr); |
1da177e4 | 997 | } else |
43622697 | 998 | blogic_err("While configuring BusLogic Host Adapter at I/O Address 0x%lX:\n", adapter, adapter->io_addr); |
839cb99e KA |
999 | blogic_err("%s FAILED - DETACHING\n", adapter, msg); |
1000 | if (blogic_cmd_failure_reason != NULL) | |
1001 | blogic_err("ADDITIONAL FAILURE INFO - %s\n", adapter, | |
1002 | blogic_cmd_failure_reason); | |
1da177e4 LT |
1003 | return false; |
1004 | } | |
1005 | ||
1006 | ||
1007 | /* | |
839cb99e | 1008 | blogic_probe probes for a BusLogic Host Adapter. |
1da177e4 LT |
1009 | */ |
1010 | ||
839cb99e | 1011 | static bool __init blogic_probe(struct blogic_adapter *adapter) |
1da177e4 | 1012 | { |
839cb99e KA |
1013 | union blogic_stat_reg statusreg; |
1014 | union blogic_int_reg intreg; | |
1015 | union blogic_geo_reg georeg; | |
1da177e4 LT |
1016 | /* |
1017 | FlashPoint Host Adapters are Probed by the FlashPoint SCCB Manager. | |
1018 | */ | |
839cb99e KA |
1019 | if (blogic_flashpoint_type(adapter)) { |
1020 | struct fpoint_info *fpinfo = &adapter->fpinfo; | |
1021 | fpinfo->base_addr = (u32) adapter->io_addr; | |
1022 | fpinfo->irq_ch = adapter->irq_ch; | |
1023 | fpinfo->present = false; | |
1024 | if (!(FlashPoint_ProbeHostAdapter(fpinfo) == 0 && | |
1025 | fpinfo->present)) { | |
43622697 CIK |
1026 | blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", adapter, adapter->bus, adapter->dev); |
1027 | blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, but FlashPoint\n", adapter, adapter->io_addr, adapter->pci_addr); | |
839cb99e | 1028 | blogic_err("BusLogic: Probe Function failed to validate it.\n", adapter); |
1da177e4 LT |
1029 | return false; |
1030 | } | |
839cb99e | 1031 | if (blogic_global_options.trace_probe) |
43622697 | 1032 | blogic_notice("BusLogic_Probe(0x%lX): FlashPoint Found\n", adapter, adapter->io_addr); |
1da177e4 LT |
1033 | /* |
1034 | Indicate the Host Adapter Probe completed successfully. | |
1035 | */ | |
1036 | return true; | |
1037 | } | |
1038 | /* | |
1039 | Read the Status, Interrupt, and Geometry Registers to test if there are I/O | |
1040 | ports that respond, and to check the values to determine if they are from a | |
1041 | BusLogic Host Adapter. A nonexistent I/O port will return 0xFF, in which | |
1042 | case there is definitely no BusLogic Host Adapter at this base I/O Address. | |
1043 | The test here is a subset of that used by the BusLogic Host Adapter BIOS. | |
1044 | */ | |
839cb99e KA |
1045 | statusreg.all = blogic_rdstatus(adapter); |
1046 | intreg.all = blogic_rdint(adapter); | |
1047 | georeg.all = blogic_rdgeom(adapter); | |
1048 | if (blogic_global_options.trace_probe) | |
43622697 | 1049 | blogic_notice("BusLogic_Probe(0x%lX): Status 0x%02X, Interrupt 0x%02X, Geometry 0x%02X\n", adapter, adapter->io_addr, statusreg.all, intreg.all, georeg.all); |
839cb99e KA |
1050 | if (statusreg.all == 0 || statusreg.sr.diag_active || |
1051 | statusreg.sr.cmd_param_busy || statusreg.sr.rsvd || | |
1052 | statusreg.sr.cmd_invalid || intreg.ir.rsvd != 0) | |
1da177e4 LT |
1053 | return false; |
1054 | /* | |
839cb99e KA |
1055 | Check the undocumented Geometry Register to test if there is |
1056 | an I/O port that responded. Adaptec Host Adapters do not | |
1057 | implement the Geometry Register, so this test helps serve to | |
1058 | avoid incorrectly recognizing an Adaptec 1542A or 1542B as a | |
1059 | BusLogic. Unfortunately, the Adaptec 1542C series does respond | |
1060 | to the Geometry Register I/O port, but it will be rejected | |
1061 | later when the Inquire Extended Setup Information command is | |
1062 | issued in blogic_checkadapter. The AMI FastDisk Host Adapter | |
1063 | is a BusLogic clone that implements the same interface as | |
1064 | earlier BusLogic Host Adapters, including the undocumented | |
1065 | commands, and is therefore supported by this driver. However, | |
1066 | the AMI FastDisk always returns 0x00 upon reading the Geometry | |
1067 | Register, so the extended translation option should always be | |
1068 | left disabled on the AMI FastDisk. | |
1069 | */ | |
1070 | if (georeg.all == 0xFF) | |
1da177e4 LT |
1071 | return false; |
1072 | /* | |
1073 | Indicate the Host Adapter Probe completed successfully. | |
1074 | */ | |
1075 | return true; | |
1076 | } | |
1077 | ||
1078 | ||
1079 | /* | |
839cb99e KA |
1080 | blogic_hwreset issues a Hardware Reset to the Host Adapter |
1081 | and waits for Host Adapter Diagnostics to complete. If hard_reset is true, a | |
1da177e4 LT |
1082 | Hard Reset is performed which also initiates a SCSI Bus Reset. Otherwise, a |
1083 | Soft Reset is performed which only resets the Host Adapter without forcing a | |
1084 | SCSI Bus Reset. | |
1085 | */ | |
1086 | ||
839cb99e | 1087 | static bool blogic_hwreset(struct blogic_adapter *adapter, bool hard_reset) |
1da177e4 | 1088 | { |
839cb99e KA |
1089 | union blogic_stat_reg statusreg; |
1090 | int timeout; | |
1da177e4 | 1091 | /* |
839cb99e KA |
1092 | FlashPoint Host Adapters are Hard Reset by the FlashPoint |
1093 | SCCB Manager. | |
1da177e4 | 1094 | */ |
839cb99e KA |
1095 | if (blogic_flashpoint_type(adapter)) { |
1096 | struct fpoint_info *fpinfo = &adapter->fpinfo; | |
1097 | fpinfo->softreset = !hard_reset; | |
1098 | fpinfo->report_underrun = true; | |
1099 | adapter->cardhandle = | |
1100 | FlashPoint_HardwareResetHostAdapter(fpinfo); | |
391e2f25 | 1101 | if (adapter->cardhandle == (void *)FPOINT_BADCARD_HANDLE) |
1da177e4 LT |
1102 | return false; |
1103 | /* | |
1104 | Indicate the Host Adapter Hard Reset completed successfully. | |
1105 | */ | |
1106 | return true; | |
1107 | } | |
1108 | /* | |
839cb99e KA |
1109 | Issue a Hard Reset or Soft Reset Command to the Host Adapter. |
1110 | The Host Adapter should respond by setting Diagnostic Active in | |
1111 | the Status Register. | |
1da177e4 | 1112 | */ |
839cb99e KA |
1113 | if (hard_reset) |
1114 | blogic_hardreset(adapter); | |
1da177e4 | 1115 | else |
839cb99e | 1116 | blogic_softreset(adapter); |
1da177e4 LT |
1117 | /* |
1118 | Wait until Diagnostic Active is set in the Status Register. | |
1119 | */ | |
839cb99e KA |
1120 | timeout = 5 * 10000; |
1121 | while (--timeout >= 0) { | |
1122 | statusreg.all = blogic_rdstatus(adapter); | |
1123 | if (statusreg.sr.diag_active) | |
1da177e4 LT |
1124 | break; |
1125 | udelay(100); | |
1126 | } | |
839cb99e | 1127 | if (blogic_global_options.trace_hw_reset) |
43622697 | 1128 | blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Active, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all); |
839cb99e | 1129 | if (timeout < 0) |
1da177e4 LT |
1130 | return false; |
1131 | /* | |
1132 | Wait 100 microseconds to allow completion of any initial diagnostic | |
1133 | activity which might leave the contents of the Status Register | |
1134 | unpredictable. | |
1135 | */ | |
1136 | udelay(100); | |
1137 | /* | |
1138 | Wait until Diagnostic Active is reset in the Status Register. | |
1139 | */ | |
839cb99e KA |
1140 | timeout = 10 * 10000; |
1141 | while (--timeout >= 0) { | |
1142 | statusreg.all = blogic_rdstatus(adapter); | |
1143 | if (!statusreg.sr.diag_active) | |
1da177e4 LT |
1144 | break; |
1145 | udelay(100); | |
1146 | } | |
839cb99e | 1147 | if (blogic_global_options.trace_hw_reset) |
43622697 | 1148 | blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Completed, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all); |
839cb99e | 1149 | if (timeout < 0) |
1da177e4 LT |
1150 | return false; |
1151 | /* | |
839cb99e KA |
1152 | Wait until at least one of the Diagnostic Failure, Host Adapter |
1153 | Ready, or Data In Register Ready bits is set in the Status Register. | |
1da177e4 | 1154 | */ |
839cb99e KA |
1155 | timeout = 10000; |
1156 | while (--timeout >= 0) { | |
1157 | statusreg.all = blogic_rdstatus(adapter); | |
1158 | if (statusreg.sr.diag_failed || statusreg.sr.adapter_ready || | |
1159 | statusreg.sr.datain_ready) | |
1da177e4 LT |
1160 | break; |
1161 | udelay(100); | |
1162 | } | |
839cb99e | 1163 | if (blogic_global_options.trace_hw_reset) |
43622697 | 1164 | blogic_notice("BusLogic_HardwareReset(0x%lX): Host Adapter Ready, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all); |
839cb99e | 1165 | if (timeout < 0) |
1da177e4 LT |
1166 | return false; |
1167 | /* | |
839cb99e KA |
1168 | If Diagnostic Failure is set or Host Adapter Ready is reset, |
1169 | then an error occurred during the Host Adapter diagnostics. | |
1170 | If Data In Register Ready is set, then there is an Error Code | |
1171 | available. | |
1172 | */ | |
1173 | if (statusreg.sr.diag_failed || !statusreg.sr.adapter_ready) { | |
1174 | blogic_cmd_failure_reason = NULL; | |
1175 | blogic_failure(adapter, "HARD RESET DIAGNOSTICS"); | |
1176 | blogic_err("HOST ADAPTER STATUS REGISTER = %02X\n", adapter, | |
1177 | statusreg.all); | |
1178 | if (statusreg.sr.datain_ready) | |
1179 | blogic_err("HOST ADAPTER ERROR CODE = %d\n", adapter, | |
1180 | blogic_rddatain(adapter)); | |
1da177e4 LT |
1181 | return false; |
1182 | } | |
1183 | /* | |
1184 | Indicate the Host Adapter Hard Reset completed successfully. | |
1185 | */ | |
1186 | return true; | |
1187 | } | |
1188 | ||
1189 | ||
1190 | /* | |
839cb99e | 1191 | blogic_checkadapter checks to be sure this really is a BusLogic |
1da177e4 LT |
1192 | Host Adapter. |
1193 | */ | |
1194 | ||
839cb99e | 1195 | static bool __init blogic_checkadapter(struct blogic_adapter *adapter) |
1da177e4 | 1196 | { |
839cb99e KA |
1197 | struct blogic_ext_setup ext_setupinfo; |
1198 | unsigned char req_replylen; | |
1199 | bool result = true; | |
1da177e4 LT |
1200 | /* |
1201 | FlashPoint Host Adapters do not require this protection. | |
1202 | */ | |
839cb99e | 1203 | if (blogic_flashpoint_type(adapter)) |
1da177e4 LT |
1204 | return true; |
1205 | /* | |
839cb99e KA |
1206 | Issue the Inquire Extended Setup Information command. Only genuine |
1207 | BusLogic Host Adapters and true clones support this command. | |
1208 | Adaptec 1542C series Host Adapters that respond to the Geometry | |
1209 | Register I/O port will fail this command. | |
1da177e4 | 1210 | */ |
839cb99e KA |
1211 | req_replylen = sizeof(ext_setupinfo); |
1212 | if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen, | |
1213 | sizeof(req_replylen), &ext_setupinfo, | |
1214 | sizeof(ext_setupinfo)) != sizeof(ext_setupinfo)) | |
1215 | result = false; | |
1da177e4 LT |
1216 | /* |
1217 | Provide tracing information if requested and return. | |
1218 | */ | |
839cb99e | 1219 | if (blogic_global_options.trace_probe) |
43622697 | 1220 | blogic_notice("BusLogic_Check(0x%lX): MultiMaster %s\n", adapter, |
839cb99e KA |
1221 | adapter->io_addr, |
1222 | (result ? "Found" : "Not Found")); | |
1223 | return result; | |
1da177e4 LT |
1224 | } |
1225 | ||
1226 | ||
1227 | /* | |
839cb99e | 1228 | blogic_rdconfig reads the Configuration Information |
1da177e4 LT |
1229 | from Host Adapter and initializes the Host Adapter structure. |
1230 | */ | |
1231 | ||
839cb99e | 1232 | static bool __init blogic_rdconfig(struct blogic_adapter *adapter) |
1da177e4 | 1233 | { |
839cb99e KA |
1234 | struct blogic_board_id id; |
1235 | struct blogic_config config; | |
1236 | struct blogic_setup_info setupinfo; | |
1237 | struct blogic_ext_setup ext_setupinfo; | |
1238 | unsigned char model[5]; | |
1239 | unsigned char fw_ver_digit3; | |
1240 | unsigned char fw_ver_letter; | |
1241 | struct blogic_adapter_info adapter_info; | |
1242 | struct blogic_fetch_localram fetch_localram; | |
1243 | struct blogic_autoscsi autoscsi; | |
1244 | union blogic_geo_reg georeg; | |
1245 | unsigned char req_replylen; | |
1246 | unsigned char *tgt, ch; | |
1247 | int tgt_id, i; | |
1248 | /* | |
1249 | Configuration Information for FlashPoint Host Adapters is | |
1250 | provided in the fpoint_info structure by the FlashPoint | |
1251 | SCCB Manager's Probe Function. Initialize fields in the | |
1252 | Host Adapter structure from the fpoint_info structure. | |
1253 | */ | |
1254 | if (blogic_flashpoint_type(adapter)) { | |
1255 | struct fpoint_info *fpinfo = &adapter->fpinfo; | |
1256 | tgt = adapter->model; | |
1257 | *tgt++ = 'B'; | |
1258 | *tgt++ = 'T'; | |
1259 | *tgt++ = '-'; | |
1260 | for (i = 0; i < sizeof(fpinfo->model); i++) | |
1261 | *tgt++ = fpinfo->model[i]; | |
1262 | *tgt++ = '\0'; | |
1263 | strcpy(adapter->fw_ver, FLASHPOINT_FW_VER); | |
1264 | adapter->scsi_id = fpinfo->scsi_id; | |
1265 | adapter->ext_trans_enable = fpinfo->ext_trans_enable; | |
1266 | adapter->parity = fpinfo->parity; | |
1267 | adapter->reset_enabled = !fpinfo->softreset; | |
1268 | adapter->level_int = true; | |
1269 | adapter->wide = fpinfo->wide; | |
1270 | adapter->differential = false; | |
1271 | adapter->scam = true; | |
1272 | adapter->ultra = true; | |
1273 | adapter->ext_lun = true; | |
1274 | adapter->terminfo_valid = true; | |
1275 | adapter->low_term = fpinfo->low_term; | |
1276 | adapter->high_term = fpinfo->high_term; | |
1277 | adapter->scam_enabled = fpinfo->scam_enabled; | |
1278 | adapter->scam_lev2 = fpinfo->scam_lev2; | |
1279 | adapter->drvr_sglimit = BLOGIC_SG_LIMIT; | |
1280 | adapter->maxdev = (adapter->wide ? 16 : 8); | |
1281 | adapter->maxlun = 32; | |
1282 | adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE; | |
1283 | adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE; | |
1284 | adapter->drvr_qdepth = 255; | |
1285 | adapter->adapter_qdepth = adapter->drvr_qdepth; | |
1286 | adapter->sync_ok = fpinfo->sync_ok; | |
1287 | adapter->fast_ok = fpinfo->fast_ok; | |
1288 | adapter->ultra_ok = fpinfo->ultra_ok; | |
1289 | adapter->wide_ok = fpinfo->wide_ok; | |
1290 | adapter->discon_ok = fpinfo->discon_ok; | |
1291 | adapter->tagq_ok = 0xFFFF; | |
1292 | goto common; | |
1da177e4 LT |
1293 | } |
1294 | /* | |
1295 | Issue the Inquire Board ID command. | |
1296 | */ | |
839cb99e KA |
1297 | if (blogic_cmd(adapter, BLOGIC_GET_BOARD_ID, NULL, 0, &id, |
1298 | sizeof(id)) != sizeof(id)) | |
1299 | return blogic_failure(adapter, "INQUIRE BOARD ID"); | |
1da177e4 LT |
1300 | /* |
1301 | Issue the Inquire Configuration command. | |
1302 | */ | |
839cb99e KA |
1303 | if (blogic_cmd(adapter, BLOGIC_INQ_CONFIG, NULL, 0, &config, |
1304 | sizeof(config)) | |
1305 | != sizeof(config)) | |
1306 | return blogic_failure(adapter, "INQUIRE CONFIGURATION"); | |
1da177e4 LT |
1307 | /* |
1308 | Issue the Inquire Setup Information command. | |
1309 | */ | |
839cb99e KA |
1310 | req_replylen = sizeof(setupinfo); |
1311 | if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen, | |
1312 | sizeof(req_replylen), &setupinfo, | |
1313 | sizeof(setupinfo)) != sizeof(setupinfo)) | |
1314 | return blogic_failure(adapter, "INQUIRE SETUP INFORMATION"); | |
1da177e4 LT |
1315 | /* |
1316 | Issue the Inquire Extended Setup Information command. | |
1317 | */ | |
839cb99e KA |
1318 | req_replylen = sizeof(ext_setupinfo); |
1319 | if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen, | |
1320 | sizeof(req_replylen), &ext_setupinfo, | |
1321 | sizeof(ext_setupinfo)) != sizeof(ext_setupinfo)) | |
1322 | return blogic_failure(adapter, | |
1323 | "INQUIRE EXTENDED SETUP INFORMATION"); | |
1da177e4 LT |
1324 | /* |
1325 | Issue the Inquire Firmware Version 3rd Digit command. | |
1326 | */ | |
839cb99e KA |
1327 | fw_ver_digit3 = '\0'; |
1328 | if (id.fw_ver_digit1 > '0') | |
1329 | if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_D3, NULL, 0, | |
1330 | &fw_ver_digit3, | |
1331 | sizeof(fw_ver_digit3)) != sizeof(fw_ver_digit3)) | |
1332 | return blogic_failure(adapter, | |
1333 | "INQUIRE FIRMWARE 3RD DIGIT"); | |
1da177e4 LT |
1334 | /* |
1335 | Issue the Inquire Host Adapter Model Number command. | |
1336 | */ | |
839cb99e | 1337 | if (ext_setupinfo.bus_type == 'A' && id.fw_ver_digit1 == '2') |
1da177e4 | 1338 | /* BusLogic BT-542B ISA 2.xx */ |
839cb99e KA |
1339 | strcpy(model, "542B"); |
1340 | else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '2' && | |
1341 | (id.fw_ver_digit2 <= '1' || (id.fw_ver_digit2 == '2' && | |
1342 | fw_ver_digit3 == '0'))) | |
1da177e4 | 1343 | /* BusLogic BT-742A EISA 2.1x or 2.20 */ |
839cb99e KA |
1344 | strcpy(model, "742A"); |
1345 | else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '0') | |
1da177e4 | 1346 | /* AMI FastDisk EISA Series 441 0.x */ |
839cb99e | 1347 | strcpy(model, "747A"); |
1da177e4 | 1348 | else { |
839cb99e KA |
1349 | req_replylen = sizeof(model); |
1350 | if (blogic_cmd(adapter, BLOGIC_INQ_MODELNO, &req_replylen, | |
1351 | sizeof(req_replylen), &model, | |
1352 | sizeof(model)) != sizeof(model)) | |
1353 | return blogic_failure(adapter, | |
1354 | "INQUIRE HOST ADAPTER MODEL NUMBER"); | |
1da177e4 LT |
1355 | } |
1356 | /* | |
839cb99e KA |
1357 | BusLogic MultiMaster Host Adapters can be identified by their |
1358 | model number and the major version number of their firmware | |
1359 | as follows: | |
1da177e4 LT |
1360 | |
1361 | 5.xx BusLogic "W" Series Host Adapters: | |
1362 | BT-948/958/958D | |
1363 | 4.xx BusLogic "C" Series Host Adapters: | |
1364 | BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF | |
1365 | 3.xx BusLogic "S" Series Host Adapters: | |
1366 | BT-747S/747D/757S/757D/445S/545S/542D | |
1367 | BT-542B/742A (revision H) | |
1368 | 2.xx BusLogic "A" Series Host Adapters: | |
1369 | BT-542B/742A (revision G and below) | |
1370 | 0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter | |
1371 | */ | |
1372 | /* | |
839cb99e KA |
1373 | Save the Model Name and Host Adapter Name in the Host Adapter |
1374 | structure. | |
1da177e4 | 1375 | */ |
839cb99e KA |
1376 | tgt = adapter->model; |
1377 | *tgt++ = 'B'; | |
1378 | *tgt++ = 'T'; | |
1379 | *tgt++ = '-'; | |
1380 | for (i = 0; i < sizeof(model); i++) { | |
1381 | ch = model[i]; | |
1382 | if (ch == ' ' || ch == '\0') | |
1da177e4 | 1383 | break; |
839cb99e | 1384 | *tgt++ = ch; |
1da177e4 | 1385 | } |
839cb99e | 1386 | *tgt++ = '\0'; |
1da177e4 LT |
1387 | /* |
1388 | Save the Firmware Version in the Host Adapter structure. | |
1389 | */ | |
839cb99e KA |
1390 | tgt = adapter->fw_ver; |
1391 | *tgt++ = id.fw_ver_digit1; | |
1392 | *tgt++ = '.'; | |
1393 | *tgt++ = id.fw_ver_digit2; | |
1394 | if (fw_ver_digit3 != ' ' && fw_ver_digit3 != '\0') | |
1395 | *tgt++ = fw_ver_digit3; | |
1396 | *tgt = '\0'; | |
1da177e4 LT |
1397 | /* |
1398 | Issue the Inquire Firmware Version Letter command. | |
1399 | */ | |
839cb99e KA |
1400 | if (strcmp(adapter->fw_ver, "3.3") >= 0) { |
1401 | if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_LETTER, NULL, 0, | |
1402 | &fw_ver_letter, | |
1403 | sizeof(fw_ver_letter)) != sizeof(fw_ver_letter)) | |
1404 | return blogic_failure(adapter, | |
1405 | "INQUIRE FIRMWARE VERSION LETTER"); | |
1406 | if (fw_ver_letter != ' ' && fw_ver_letter != '\0') | |
1407 | *tgt++ = fw_ver_letter; | |
1408 | *tgt = '\0'; | |
1da177e4 LT |
1409 | } |
1410 | /* | |
1411 | Save the Host Adapter SCSI ID in the Host Adapter structure. | |
1412 | */ | |
839cb99e KA |
1413 | adapter->scsi_id = config.id; |
1414 | /* | |
1415 | Determine the Bus Type and save it in the Host Adapter structure, | |
1416 | determine and save the IRQ Channel if necessary, and determine | |
1417 | and save the DMA Channel for ISA Host Adapters. | |
1418 | */ | |
1419 | adapter->adapter_bus_type = | |
1420 | blogic_adater_bus_types[adapter->model[3] - '4']; | |
1421 | if (adapter->irq_ch == 0) { | |
1422 | if (config.irq_ch9) | |
1423 | adapter->irq_ch = 9; | |
1424 | else if (config.irq_ch10) | |
1425 | adapter->irq_ch = 10; | |
1426 | else if (config.irq_ch11) | |
1427 | adapter->irq_ch = 11; | |
1428 | else if (config.irq_ch12) | |
1429 | adapter->irq_ch = 12; | |
1430 | else if (config.irq_ch14) | |
1431 | adapter->irq_ch = 14; | |
1432 | else if (config.irq_ch15) | |
1433 | adapter->irq_ch = 15; | |
1434 | } | |
1da177e4 LT |
1435 | /* |
1436 | Determine whether Extended Translation is enabled and save it in | |
1437 | the Host Adapter structure. | |
1438 | */ | |
839cb99e KA |
1439 | georeg.all = blogic_rdgeom(adapter); |
1440 | adapter->ext_trans_enable = georeg.gr.ext_trans_enable; | |
1da177e4 LT |
1441 | /* |
1442 | Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide | |
1443 | SCSI flag, Differential SCSI flag, SCAM Supported flag, and | |
1444 | Ultra SCSI flag in the Host Adapter structure. | |
1445 | */ | |
839cb99e KA |
1446 | adapter->adapter_sglimit = ext_setupinfo.sg_limit; |
1447 | adapter->drvr_sglimit = adapter->adapter_sglimit; | |
1448 | if (adapter->adapter_sglimit > BLOGIC_SG_LIMIT) | |
1449 | adapter->drvr_sglimit = BLOGIC_SG_LIMIT; | |
1450 | if (ext_setupinfo.misc.level_int) | |
1451 | adapter->level_int = true; | |
1452 | adapter->wide = ext_setupinfo.wide; | |
1453 | adapter->differential = ext_setupinfo.differential; | |
1454 | adapter->scam = ext_setupinfo.scam; | |
1455 | adapter->ultra = ext_setupinfo.ultra; | |
1da177e4 LT |
1456 | /* |
1457 | Determine whether Extended LUN Format CCBs are supported and save the | |
1458 | information in the Host Adapter structure. | |
1459 | */ | |
839cb99e KA |
1460 | if (adapter->fw_ver[0] == '5' || (adapter->fw_ver[0] == '4' && |
1461 | adapter->wide)) | |
1462 | adapter->ext_lun = true; | |
1da177e4 LT |
1463 | /* |
1464 | Issue the Inquire PCI Host Adapter Information command to read the | |
1465 | Termination Information from "W" series MultiMaster Host Adapters. | |
1466 | */ | |
839cb99e KA |
1467 | if (adapter->fw_ver[0] == '5') { |
1468 | if (blogic_cmd(adapter, BLOGIC_INQ_PCI_INFO, NULL, 0, | |
1469 | &adapter_info, | |
1470 | sizeof(adapter_info)) != sizeof(adapter_info)) | |
1471 | return blogic_failure(adapter, | |
1472 | "INQUIRE PCI HOST ADAPTER INFORMATION"); | |
1da177e4 | 1473 | /* |
839cb99e KA |
1474 | Save the Termination Information in the Host Adapter |
1475 | structure. | |
1da177e4 | 1476 | */ |
839cb99e KA |
1477 | if (adapter_info.genericinfo_valid) { |
1478 | adapter->terminfo_valid = true; | |
1479 | adapter->low_term = adapter_info.low_term; | |
1480 | adapter->high_term = adapter_info.high_term; | |
1da177e4 LT |
1481 | } |
1482 | } | |
1483 | /* | |
839cb99e KA |
1484 | Issue the Fetch Host Adapter Local RAM command to read the |
1485 | AutoSCSI data from "W" and "C" series MultiMaster Host Adapters. | |
1da177e4 | 1486 | */ |
839cb99e KA |
1487 | if (adapter->fw_ver[0] >= '4') { |
1488 | fetch_localram.offset = BLOGIC_AUTOSCSI_BASE; | |
1489 | fetch_localram.count = sizeof(autoscsi); | |
1490 | if (blogic_cmd(adapter, BLOGIC_FETCH_LOCALRAM, &fetch_localram, | |
1491 | sizeof(fetch_localram), &autoscsi, | |
1492 | sizeof(autoscsi)) != sizeof(autoscsi)) | |
1493 | return blogic_failure(adapter, | |
1494 | "FETCH HOST ADAPTER LOCAL RAM"); | |
1da177e4 | 1495 | /* |
839cb99e KA |
1496 | Save the Parity Checking Enabled, Bus Reset Enabled, |
1497 | and Termination Information in the Host Adapter structure. | |
1da177e4 | 1498 | */ |
839cb99e KA |
1499 | adapter->parity = autoscsi.parity; |
1500 | adapter->reset_enabled = autoscsi.reset_enabled; | |
1501 | if (adapter->fw_ver[0] == '4') { | |
1502 | adapter->terminfo_valid = true; | |
1503 | adapter->low_term = autoscsi.low_term; | |
1504 | adapter->high_term = autoscsi.high_term; | |
1da177e4 LT |
1505 | } |
1506 | /* | |
839cb99e KA |
1507 | Save the Wide Permitted, Fast Permitted, Synchronous |
1508 | Permitted, Disconnect Permitted, Ultra Permitted, and | |
1509 | SCAM Information in the Host Adapter structure. | |
1da177e4 | 1510 | */ |
839cb99e KA |
1511 | adapter->wide_ok = autoscsi.wide_ok; |
1512 | adapter->fast_ok = autoscsi.fast_ok; | |
1513 | adapter->sync_ok = autoscsi.sync_ok; | |
1514 | adapter->discon_ok = autoscsi.discon_ok; | |
1515 | if (adapter->ultra) | |
1516 | adapter->ultra_ok = autoscsi.ultra_ok; | |
1517 | if (adapter->scam) { | |
1518 | adapter->scam_enabled = autoscsi.scam_enabled; | |
1519 | adapter->scam_lev2 = autoscsi.scam_lev2; | |
1da177e4 LT |
1520 | } |
1521 | } | |
1522 | /* | |
839cb99e KA |
1523 | Initialize fields in the Host Adapter structure for "S" and "A" |
1524 | series MultiMaster Host Adapters. | |
1da177e4 | 1525 | */ |
839cb99e KA |
1526 | if (adapter->fw_ver[0] < '4') { |
1527 | if (setupinfo.sync) { | |
1528 | adapter->sync_ok = 0xFF; | |
1529 | if (adapter->adapter_bus_type == BLOGIC_EISA_BUS) { | |
1530 | if (ext_setupinfo.misc.fast_on_eisa) | |
1531 | adapter->fast_ok = 0xFF; | |
1532 | if (strcmp(adapter->model, "BT-757") == 0) | |
1533 | adapter->wide_ok = 0xFF; | |
1da177e4 LT |
1534 | } |
1535 | } | |
839cb99e KA |
1536 | adapter->discon_ok = 0xFF; |
1537 | adapter->parity = setupinfo.parity; | |
1538 | adapter->reset_enabled = true; | |
1da177e4 LT |
1539 | } |
1540 | /* | |
839cb99e KA |
1541 | Determine the maximum number of Target IDs and Logical Units |
1542 | supported by this driver for Wide and Narrow Host Adapters. | |
1da177e4 | 1543 | */ |
839cb99e KA |
1544 | adapter->maxdev = (adapter->wide ? 16 : 8); |
1545 | adapter->maxlun = (adapter->ext_lun ? 32 : 8); | |
1da177e4 LT |
1546 | /* |
1547 | Select appropriate values for the Mailbox Count, Driver Queue Depth, | |
839cb99e KA |
1548 | Initial CCBs, and Incremental CCBs variables based on whether |
1549 | or not Strict Round Robin Mode is supported. If Strict Round | |
1550 | Robin Mode is supported, then there is no performance degradation | |
1551 | in using the maximum possible number of Outgoing and Incoming | |
1552 | Mailboxes and allowing the Tagged and Untagged Queue Depths to | |
1553 | determine the actual utilization. If Strict Round Robin Mode is | |
1554 | not supported, then the Host Adapter must scan all the Outgoing | |
1555 | Mailboxes whenever an Outgoing Mailbox entry is made, which can | |
1556 | cause a substantial performance penalty. The host adapters | |
1557 | actually have room to store the following number of CCBs | |
1558 | internally; that is, they can internally queue and manage this | |
1559 | many active commands on the SCSI bus simultaneously. Performance | |
1560 | measurements demonstrate that the Driver Queue Depth should be | |
1561 | set to the Mailbox Count, rather than the Host Adapter Queue | |
1562 | Depth (internal CCB capacity), as it is more efficient to have the | |
1563 | queued commands waiting in Outgoing Mailboxes if necessary than | |
1564 | to block the process in the higher levels of the SCSI Subsystem. | |
1da177e4 LT |
1565 | |
1566 | 192 BT-948/958/958D | |
1567 | 100 BT-946C/956C/956CD/747C/757C/757CD/445C | |
1568 | 50 BT-545C/540CF | |
1569 | 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A | |
1570 | */ | |
839cb99e KA |
1571 | if (adapter->fw_ver[0] == '5') |
1572 | adapter->adapter_qdepth = 192; | |
1573 | else if (adapter->fw_ver[0] == '4') | |
8cad3b66 | 1574 | adapter->adapter_qdepth = 100; |
1da177e4 | 1575 | else |
839cb99e KA |
1576 | adapter->adapter_qdepth = 30; |
1577 | if (strcmp(adapter->fw_ver, "3.31") >= 0) { | |
1578 | adapter->strict_rr = true; | |
1579 | adapter->mbox_count = BLOGIC_MAX_MAILBOX; | |
1da177e4 | 1580 | } else { |
839cb99e KA |
1581 | adapter->strict_rr = false; |
1582 | adapter->mbox_count = 32; | |
1da177e4 | 1583 | } |
839cb99e KA |
1584 | adapter->drvr_qdepth = adapter->mbox_count; |
1585 | adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE; | |
1586 | adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE; | |
1da177e4 | 1587 | /* |
839cb99e KA |
1588 | Tagged Queuing support is available and operates properly on |
1589 | all "W" series MultiMaster Host Adapters, on "C" series | |
1590 | MultiMaster Host Adapters with firmware version 4.22 and above, | |
1591 | and on "S" series MultiMaster Host Adapters with firmware version | |
1592 | 3.35 and above. | |
1da177e4 | 1593 | */ |
839cb99e KA |
1594 | adapter->tagq_ok = 0; |
1595 | switch (adapter->fw_ver[0]) { | |
1da177e4 | 1596 | case '5': |
839cb99e | 1597 | adapter->tagq_ok = 0xFFFF; |
1da177e4 LT |
1598 | break; |
1599 | case '4': | |
839cb99e KA |
1600 | if (strcmp(adapter->fw_ver, "4.22") >= 0) |
1601 | adapter->tagq_ok = 0xFFFF; | |
1da177e4 LT |
1602 | break; |
1603 | case '3': | |
839cb99e KA |
1604 | if (strcmp(adapter->fw_ver, "3.35") >= 0) |
1605 | adapter->tagq_ok = 0xFFFF; | |
1da177e4 LT |
1606 | break; |
1607 | } | |
1608 | /* | |
1609 | Determine the Host Adapter BIOS Address if the BIOS is enabled and | |
1610 | save it in the Host Adapter structure. The BIOS is disabled if the | |
839cb99e | 1611 | bios_addr is 0. |
1da177e4 | 1612 | */ |
839cb99e | 1613 | adapter->bios_addr = ext_setupinfo.bios_addr << 12; |
1da177e4 | 1614 | /* |
839cb99e KA |
1615 | BusLogic BT-445S Host Adapters prior to board revision E have a |
1616 | hardware bug whereby when the BIOS is enabled, transfers to/from | |
1617 | the same address range the BIOS occupies modulo 16MB are handled | |
1618 | incorrectly. Only properly functioning BT-445S Host Adapters | |
a5f7a122 | 1619 | have firmware version 3.37. |
1da177e4 | 1620 | */ |
a5f7a122 CH |
1621 | if (adapter->bios_addr > 0 && |
1622 | strcmp(adapter->model, "BT-445S") == 0 && | |
1623 | strcmp(adapter->fw_ver, "3.37") < 0) | |
1624 | return blogic_failure(adapter, "Too old firmware"); | |
1da177e4 | 1625 | /* |
839cb99e KA |
1626 | Initialize parameters common to MultiMaster and FlashPoint |
1627 | Host Adapters. | |
1da177e4 | 1628 | */ |
839cb99e | 1629 | common: |
1da177e4 LT |
1630 | /* |
1631 | Initialize the Host Adapter Full Model Name from the Model Name. | |
1632 | */ | |
839cb99e KA |
1633 | strcpy(adapter->full_model, "BusLogic "); |
1634 | strcat(adapter->full_model, adapter->model); | |
1da177e4 LT |
1635 | /* |
1636 | Select an appropriate value for the Tagged Queue Depth either from a | |
1637 | BusLogic Driver Options specification, or based on whether this Host | |
839cb99e KA |
1638 | Adapter requires that ISA Bounce Buffers be used. The Tagged Queue |
1639 | Depth is left at 0 for automatic determination in | |
1640 | BusLogic_SelectQueueDepths. Initialize the Untagged Queue Depth. | |
1641 | */ | |
1642 | for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) { | |
1643 | unsigned char qdepth = 0; | |
1644 | if (adapter->drvr_opts != NULL && | |
1645 | adapter->drvr_opts->qdepth[tgt_id] > 0) | |
1646 | qdepth = adapter->drvr_opts->qdepth[tgt_id]; | |
839cb99e KA |
1647 | adapter->qdepth[tgt_id] = qdepth; |
1648 | } | |
a5f7a122 | 1649 | adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH; |
839cb99e KA |
1650 | if (adapter->drvr_opts != NULL) |
1651 | adapter->common_qdepth = adapter->drvr_opts->common_qdepth; | |
1652 | if (adapter->common_qdepth > 0 && | |
1653 | adapter->common_qdepth < adapter->untag_qdepth) | |
1654 | adapter->untag_qdepth = adapter->common_qdepth; | |
1da177e4 LT |
1655 | /* |
1656 | Tagged Queuing is only allowed if Disconnect/Reconnect is permitted. | |
1657 | Therefore, mask the Tagged Queuing Permitted Default bits with the | |
1658 | Disconnect/Reconnect Permitted bits. | |
1659 | */ | |
839cb99e | 1660 | adapter->tagq_ok &= adapter->discon_ok; |
1da177e4 | 1661 | /* |
839cb99e KA |
1662 | Combine the default Tagged Queuing Permitted bits with any |
1663 | BusLogic Driver Options Tagged Queuing specification. | |
1da177e4 | 1664 | */ |
839cb99e KA |
1665 | if (adapter->drvr_opts != NULL) |
1666 | adapter->tagq_ok = (adapter->drvr_opts->tagq_ok & | |
1667 | adapter->drvr_opts->tagq_ok_mask) | | |
1668 | (adapter->tagq_ok & ~adapter->drvr_opts->tagq_ok_mask); | |
1da177e4 LT |
1669 | |
1670 | /* | |
839cb99e KA |
1671 | Select an appropriate value for Bus Settle Time either from a |
1672 | BusLogic Driver Options specification, or from | |
1673 | BLOGIC_BUS_SETTLE_TIME. | |
1da177e4 | 1674 | */ |
839cb99e KA |
1675 | if (adapter->drvr_opts != NULL && |
1676 | adapter->drvr_opts->bus_settle_time > 0) | |
1677 | adapter->bus_settle_time = adapter->drvr_opts->bus_settle_time; | |
1da177e4 | 1678 | else |
839cb99e | 1679 | adapter->bus_settle_time = BLOGIC_BUS_SETTLE_TIME; |
1da177e4 | 1680 | /* |
839cb99e KA |
1681 | Indicate reading the Host Adapter Configuration completed |
1682 | successfully. | |
1da177e4 LT |
1683 | */ |
1684 | return true; | |
1685 | } | |
1686 | ||
1687 | ||
1688 | /* | |
839cb99e | 1689 | blogic_reportconfig reports the configuration of Host Adapter. |
1da177e4 LT |
1690 | */ |
1691 | ||
839cb99e | 1692 | static bool __init blogic_reportconfig(struct blogic_adapter *adapter) |
1da177e4 | 1693 | { |
839cb99e KA |
1694 | unsigned short alltgt_mask = (1 << adapter->maxdev) - 1; |
1695 | unsigned short sync_ok, fast_ok; | |
1696 | unsigned short ultra_ok, wide_ok; | |
1697 | unsigned short discon_ok, tagq_ok; | |
1698 | bool common_syncneg, common_tagq_depth; | |
1699 | char syncstr[BLOGIC_MAXDEV + 1]; | |
1700 | char widestr[BLOGIC_MAXDEV + 1]; | |
1701 | char discon_str[BLOGIC_MAXDEV + 1]; | |
1702 | char tagq_str[BLOGIC_MAXDEV + 1]; | |
1703 | char *syncmsg = syncstr; | |
1704 | char *widemsg = widestr; | |
1705 | char *discon_msg = discon_str; | |
1706 | char *tagq_msg = tagq_str; | |
1707 | int tgt_id; | |
1708 | ||
1709 | blogic_info("Configuring BusLogic Model %s %s%s%s%s SCSI Host Adapter\n", adapter, adapter->model, blogic_adapter_busnames[adapter->adapter_bus_type], (adapter->wide ? " Wide" : ""), (adapter->differential ? " Differential" : ""), (adapter->ultra ? " Ultra" : "")); | |
43622697 | 1710 | blogic_info(" Firmware Version: %s, I/O Address: 0x%lX, IRQ Channel: %d/%s\n", adapter, adapter->fw_ver, adapter->io_addr, adapter->irq_ch, (adapter->level_int ? "Level" : "Edge")); |
839cb99e | 1711 | if (adapter->adapter_bus_type != BLOGIC_PCI_BUS) { |
8cad3b66 | 1712 | blogic_info(" DMA Channel: None, ", adapter); |
839cb99e | 1713 | if (adapter->bios_addr > 0) |
2127cd21 | 1714 | blogic_info("BIOS Address: 0x%X, ", adapter, |
839cb99e | 1715 | adapter->bios_addr); |
1da177e4 | 1716 | else |
839cb99e | 1717 | blogic_info("BIOS Address: None, ", adapter); |
1da177e4 | 1718 | } else { |
839cb99e KA |
1719 | blogic_info(" PCI Bus: %d, Device: %d, Address: ", adapter, |
1720 | adapter->bus, adapter->dev); | |
1721 | if (adapter->pci_addr > 0) | |
43622697 | 1722 | blogic_info("0x%lX, ", adapter, adapter->pci_addr); |
1da177e4 | 1723 | else |
839cb99e KA |
1724 | blogic_info("Unassigned, ", adapter); |
1725 | } | |
1726 | blogic_info("Host Adapter SCSI ID: %d\n", adapter, adapter->scsi_id); | |
1727 | blogic_info(" Parity Checking: %s, Extended Translation: %s\n", | |
1728 | adapter, (adapter->parity ? "Enabled" : "Disabled"), | |
1729 | (adapter->ext_trans_enable ? "Enabled" : "Disabled")); | |
1730 | alltgt_mask &= ~(1 << adapter->scsi_id); | |
1731 | sync_ok = adapter->sync_ok & alltgt_mask; | |
1732 | fast_ok = adapter->fast_ok & alltgt_mask; | |
1733 | ultra_ok = adapter->ultra_ok & alltgt_mask; | |
1734 | if ((blogic_multimaster_type(adapter) && | |
1735 | (adapter->fw_ver[0] >= '4' || | |
1736 | adapter->adapter_bus_type == BLOGIC_EISA_BUS)) || | |
1737 | blogic_flashpoint_type(adapter)) { | |
1738 | common_syncneg = false; | |
1739 | if (sync_ok == 0) { | |
1740 | syncmsg = "Disabled"; | |
1741 | common_syncneg = true; | |
1742 | } else if (sync_ok == alltgt_mask) { | |
1743 | if (fast_ok == 0) { | |
1744 | syncmsg = "Slow"; | |
1745 | common_syncneg = true; | |
1746 | } else if (fast_ok == alltgt_mask) { | |
1747 | if (ultra_ok == 0) { | |
1748 | syncmsg = "Fast"; | |
1749 | common_syncneg = true; | |
1750 | } else if (ultra_ok == alltgt_mask) { | |
1751 | syncmsg = "Ultra"; | |
1752 | common_syncneg = true; | |
1da177e4 LT |
1753 | } |
1754 | } | |
1755 | } | |
839cb99e KA |
1756 | if (!common_syncneg) { |
1757 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) | |
1758 | syncstr[tgt_id] = ((!(sync_ok & (1 << tgt_id))) ? 'N' : (!(fast_ok & (1 << tgt_id)) ? 'S' : (!(ultra_ok & (1 << tgt_id)) ? 'F' : 'U'))); | |
1759 | syncstr[adapter->scsi_id] = '#'; | |
1760 | syncstr[adapter->maxdev] = '\0'; | |
1da177e4 LT |
1761 | } |
1762 | } else | |
839cb99e KA |
1763 | syncmsg = (sync_ok == 0 ? "Disabled" : "Enabled"); |
1764 | wide_ok = adapter->wide_ok & alltgt_mask; | |
1765 | if (wide_ok == 0) | |
1766 | widemsg = "Disabled"; | |
1767 | else if (wide_ok == alltgt_mask) | |
1768 | widemsg = "Enabled"; | |
1da177e4 | 1769 | else { |
839cb99e KA |
1770 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
1771 | widestr[tgt_id] = ((wide_ok & (1 << tgt_id)) ? 'Y' : 'N'); | |
1772 | widestr[adapter->scsi_id] = '#'; | |
1773 | widestr[adapter->maxdev] = '\0'; | |
1774 | } | |
1775 | discon_ok = adapter->discon_ok & alltgt_mask; | |
1776 | if (discon_ok == 0) | |
1777 | discon_msg = "Disabled"; | |
1778 | else if (discon_ok == alltgt_mask) | |
1779 | discon_msg = "Enabled"; | |
1da177e4 | 1780 | else { |
839cb99e KA |
1781 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
1782 | discon_str[tgt_id] = ((discon_ok & (1 << tgt_id)) ? 'Y' : 'N'); | |
1783 | discon_str[adapter->scsi_id] = '#'; | |
1784 | discon_str[adapter->maxdev] = '\0'; | |
1785 | } | |
1786 | tagq_ok = adapter->tagq_ok & alltgt_mask; | |
1787 | if (tagq_ok == 0) | |
1788 | tagq_msg = "Disabled"; | |
1789 | else if (tagq_ok == alltgt_mask) | |
1790 | tagq_msg = "Enabled"; | |
1da177e4 | 1791 | else { |
839cb99e KA |
1792 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
1793 | tagq_str[tgt_id] = ((tagq_ok & (1 << tgt_id)) ? 'Y' : 'N'); | |
1794 | tagq_str[adapter->scsi_id] = '#'; | |
1795 | tagq_str[adapter->maxdev] = '\0'; | |
1796 | } | |
1797 | blogic_info(" Synchronous Negotiation: %s, Wide Negotiation: %s\n", | |
1798 | adapter, syncmsg, widemsg); | |
1799 | blogic_info(" Disconnect/Reconnect: %s, Tagged Queuing: %s\n", adapter, | |
1800 | discon_msg, tagq_msg); | |
1801 | if (blogic_multimaster_type(adapter)) { | |
43622697 CIK |
1802 | blogic_info(" Scatter/Gather Limit: %d of %d segments, Mailboxes: %d\n", adapter, adapter->drvr_sglimit, adapter->adapter_sglimit, adapter->mbox_count); |
1803 | blogic_info(" Driver Queue Depth: %d, Host Adapter Queue Depth: %d\n", adapter, adapter->drvr_qdepth, adapter->adapter_qdepth); | |
1da177e4 | 1804 | } else |
43622697 | 1805 | blogic_info(" Driver Queue Depth: %d, Scatter/Gather Limit: %d segments\n", adapter, adapter->drvr_qdepth, adapter->drvr_sglimit); |
839cb99e KA |
1806 | blogic_info(" Tagged Queue Depth: ", adapter); |
1807 | common_tagq_depth = true; | |
1808 | for (tgt_id = 1; tgt_id < adapter->maxdev; tgt_id++) | |
1809 | if (adapter->qdepth[tgt_id] != adapter->qdepth[0]) { | |
1810 | common_tagq_depth = false; | |
1da177e4 LT |
1811 | break; |
1812 | } | |
839cb99e KA |
1813 | if (common_tagq_depth) { |
1814 | if (adapter->qdepth[0] > 0) | |
1815 | blogic_info("%d", adapter, adapter->qdepth[0]); | |
1da177e4 | 1816 | else |
839cb99e | 1817 | blogic_info("Automatic", adapter); |
1da177e4 | 1818 | } else |
839cb99e KA |
1819 | blogic_info("Individual", adapter); |
1820 | blogic_info(", Untagged Queue Depth: %d\n", adapter, | |
1821 | adapter->untag_qdepth); | |
1822 | if (adapter->terminfo_valid) { | |
1823 | if (adapter->wide) | |
1824 | blogic_info(" SCSI Bus Termination: %s", adapter, | |
1825 | (adapter->low_term ? (adapter->high_term ? "Both Enabled" : "Low Enabled") : (adapter->high_term ? "High Enabled" : "Both Disabled"))); | |
1da177e4 | 1826 | else |
839cb99e KA |
1827 | blogic_info(" SCSI Bus Termination: %s", adapter, |
1828 | (adapter->low_term ? "Enabled" : "Disabled")); | |
1829 | if (adapter->scam) | |
1830 | blogic_info(", SCAM: %s", adapter, | |
1831 | (adapter->scam_enabled ? (adapter->scam_lev2 ? "Enabled, Level 2" : "Enabled, Level 1") : "Disabled")); | |
1832 | blogic_info("\n", adapter); | |
1da177e4 LT |
1833 | } |
1834 | /* | |
839cb99e KA |
1835 | Indicate reporting the Host Adapter configuration completed |
1836 | successfully. | |
1da177e4 LT |
1837 | */ |
1838 | return true; | |
1839 | } | |
1840 | ||
1841 | ||
1842 | /* | |
839cb99e | 1843 | blogic_getres acquires the system resources necessary to use |
1da177e4 LT |
1844 | Host Adapter. |
1845 | */ | |
1846 | ||
839cb99e | 1847 | static bool __init blogic_getres(struct blogic_adapter *adapter) |
1da177e4 | 1848 | { |
839cb99e KA |
1849 | if (adapter->irq_ch == 0) { |
1850 | blogic_err("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n", | |
1851 | adapter); | |
1da177e4 LT |
1852 | return false; |
1853 | } | |
1854 | /* | |
1855 | Acquire shared access to the IRQ Channel. | |
1856 | */ | |
839cb99e KA |
1857 | if (request_irq(adapter->irq_ch, blogic_inthandler, IRQF_SHARED, |
1858 | adapter->full_model, adapter) < 0) { | |
1859 | blogic_err("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n", | |
1860 | adapter, adapter->irq_ch); | |
1da177e4 LT |
1861 | return false; |
1862 | } | |
839cb99e | 1863 | adapter->irq_acquired = true; |
1da177e4 LT |
1864 | /* |
1865 | Indicate the System Resource Acquisition completed successfully, | |
1866 | */ | |
1867 | return true; | |
1868 | } | |
1869 | ||
1870 | ||
1871 | /* | |
839cb99e KA |
1872 | blogic_relres releases any system resources previously acquired |
1873 | by blogic_getres. | |
1da177e4 LT |
1874 | */ |
1875 | ||
839cb99e | 1876 | static void blogic_relres(struct blogic_adapter *adapter) |
1da177e4 LT |
1877 | { |
1878 | /* | |
1879 | Release shared access to the IRQ Channel. | |
1880 | */ | |
839cb99e KA |
1881 | if (adapter->irq_acquired) |
1882 | free_irq(adapter->irq_ch, adapter); | |
1da177e4 LT |
1883 | /* |
1884 | Release any allocated memory structs not released elsewhere | |
1885 | */ | |
839cb99e | 1886 | if (adapter->mbox_space) |
17a361b2 | 1887 | dma_free_coherent(&adapter->pci_device->dev, adapter->mbox_sz, |
839cb99e KA |
1888 | adapter->mbox_space, adapter->mbox_space_handle); |
1889 | pci_dev_put(adapter->pci_device); | |
1890 | adapter->mbox_space = NULL; | |
1891 | adapter->mbox_space_handle = 0; | |
1892 | adapter->mbox_sz = 0; | |
1da177e4 LT |
1893 | } |
1894 | ||
1895 | ||
1896 | /* | |
839cb99e | 1897 | blogic_initadapter initializes Host Adapter. This is the only |
1da177e4 LT |
1898 | function called during SCSI Host Adapter detection which modifies the state |
1899 | of the Host Adapter from its initial power on or hard reset state. | |
1900 | */ | |
1901 | ||
839cb99e | 1902 | static bool blogic_initadapter(struct blogic_adapter *adapter) |
1da177e4 | 1903 | { |
839cb99e KA |
1904 | struct blogic_extmbox_req extmbox_req; |
1905 | enum blogic_rr_req rr_req; | |
1906 | enum blogic_setccb_fmt setccb_fmt; | |
1907 | int tgt_id; | |
1908 | ||
1da177e4 | 1909 | /* |
839cb99e KA |
1910 | Initialize the pointers to the first and last CCBs that are |
1911 | queued for completion processing. | |
1da177e4 | 1912 | */ |
839cb99e KA |
1913 | adapter->firstccb = NULL; |
1914 | adapter->lastccb = NULL; | |
1915 | ||
1da177e4 LT |
1916 | /* |
1917 | Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active, | |
1918 | Command Successful Flag, Active Commands, and Commands Since Reset | |
1919 | for each Target Device. | |
1920 | */ | |
839cb99e KA |
1921 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) { |
1922 | adapter->bdr_pend[tgt_id] = NULL; | |
1923 | adapter->tgt_flags[tgt_id].tagq_active = false; | |
1924 | adapter->tgt_flags[tgt_id].cmd_good = false; | |
1925 | adapter->active_cmds[tgt_id] = 0; | |
1926 | adapter->cmds_since_rst[tgt_id] = 0; | |
1da177e4 | 1927 | } |
839cb99e | 1928 | |
1da177e4 LT |
1929 | /* |
1930 | FlashPoint Host Adapters do not use Outgoing and Incoming Mailboxes. | |
1931 | */ | |
839cb99e KA |
1932 | if (blogic_flashpoint_type(adapter)) |
1933 | goto done; | |
1934 | ||
1da177e4 LT |
1935 | /* |
1936 | Initialize the Outgoing and Incoming Mailbox pointers. | |
1937 | */ | |
839cb99e | 1938 | adapter->mbox_sz = adapter->mbox_count * (sizeof(struct blogic_outbox) + sizeof(struct blogic_inbox)); |
17a361b2 CH |
1939 | adapter->mbox_space = dma_alloc_coherent(&adapter->pci_device->dev, |
1940 | adapter->mbox_sz, &adapter->mbox_space_handle, | |
1941 | GFP_KERNEL); | |
839cb99e KA |
1942 | if (adapter->mbox_space == NULL) |
1943 | return blogic_failure(adapter, "MAILBOX ALLOCATION"); | |
1944 | adapter->first_outbox = (struct blogic_outbox *) adapter->mbox_space; | |
1945 | adapter->last_outbox = adapter->first_outbox + adapter->mbox_count - 1; | |
1946 | adapter->next_outbox = adapter->first_outbox; | |
1947 | adapter->first_inbox = (struct blogic_inbox *) (adapter->last_outbox + 1); | |
1948 | adapter->last_inbox = adapter->first_inbox + adapter->mbox_count - 1; | |
1949 | adapter->next_inbox = adapter->first_inbox; | |
1da177e4 LT |
1950 | |
1951 | /* | |
1952 | Initialize the Outgoing and Incoming Mailbox structures. | |
1953 | */ | |
839cb99e KA |
1954 | memset(adapter->first_outbox, 0, |
1955 | adapter->mbox_count * sizeof(struct blogic_outbox)); | |
1956 | memset(adapter->first_inbox, 0, | |
1957 | adapter->mbox_count * sizeof(struct blogic_inbox)); | |
1958 | ||
1da177e4 | 1959 | /* |
839cb99e KA |
1960 | Initialize the Host Adapter's Pointer to the Outgoing/Incoming |
1961 | Mailboxes. | |
1da177e4 | 1962 | */ |
839cb99e KA |
1963 | extmbox_req.mbox_count = adapter->mbox_count; |
1964 | extmbox_req.base_mbox_addr = (u32) adapter->mbox_space_handle; | |
1965 | if (blogic_cmd(adapter, BLOGIC_INIT_EXT_MBOX, &extmbox_req, | |
1966 | sizeof(extmbox_req), NULL, 0) < 0) | |
1967 | return blogic_failure(adapter, "MAILBOX INITIALIZATION"); | |
1da177e4 | 1968 | /* |
839cb99e KA |
1969 | Enable Strict Round Robin Mode if supported by the Host Adapter. In |
1970 | Strict Round Robin Mode, the Host Adapter only looks at the next | |
1971 | Outgoing Mailbox for each new command, rather than scanning | |
1972 | through all the Outgoing Mailboxes to find any that have new | |
1973 | commands in them. Strict Round Robin Mode is significantly more | |
1974 | efficient. | |
1da177e4 | 1975 | */ |
839cb99e KA |
1976 | if (adapter->strict_rr) { |
1977 | rr_req = BLOGIC_STRICT_RR_MODE; | |
1978 | if (blogic_cmd(adapter, BLOGIC_STRICT_RR, &rr_req, | |
1979 | sizeof(rr_req), NULL, 0) < 0) | |
1980 | return blogic_failure(adapter, | |
1981 | "ENABLE STRICT ROUND ROBIN MODE"); | |
1da177e4 | 1982 | } |
839cb99e | 1983 | |
1da177e4 | 1984 | /* |
839cb99e KA |
1985 | For Host Adapters that support Extended LUN Format CCBs, issue the |
1986 | Set CCB Format command to allow 32 Logical Units per Target Device. | |
1da177e4 | 1987 | */ |
839cb99e KA |
1988 | if (adapter->ext_lun) { |
1989 | setccb_fmt = BLOGIC_EXT_LUN_CCB; | |
1990 | if (blogic_cmd(adapter, BLOGIC_SETCCB_FMT, &setccb_fmt, | |
1991 | sizeof(setccb_fmt), NULL, 0) < 0) | |
1992 | return blogic_failure(adapter, "SET CCB FORMAT"); | |
1da177e4 | 1993 | } |
839cb99e | 1994 | |
1da177e4 LT |
1995 | /* |
1996 | Announce Successful Initialization. | |
1997 | */ | |
839cb99e KA |
1998 | done: |
1999 | if (!adapter->adapter_initd) { | |
2000 | blogic_info("*** %s Initialized Successfully ***\n", adapter, | |
2001 | adapter->full_model); | |
2002 | blogic_info("\n", adapter); | |
1da177e4 | 2003 | } else |
839cb99e KA |
2004 | blogic_warn("*** %s Initialized Successfully ***\n", adapter, |
2005 | adapter->full_model); | |
2006 | adapter->adapter_initd = true; | |
2007 | ||
1da177e4 LT |
2008 | /* |
2009 | Indicate the Host Adapter Initialization completed successfully. | |
2010 | */ | |
2011 | return true; | |
2012 | } | |
2013 | ||
2014 | ||
2015 | /* | |
839cb99e | 2016 | blogic_inquiry inquires about the Target Devices accessible |
1da177e4 LT |
2017 | through Host Adapter. |
2018 | */ | |
2019 | ||
839cb99e | 2020 | static bool __init blogic_inquiry(struct blogic_adapter *adapter) |
1da177e4 | 2021 | { |
839cb99e KA |
2022 | u16 installed_devs; |
2023 | u8 installed_devs0to7[8]; | |
2024 | struct blogic_setup_info setupinfo; | |
2025 | u8 sync_period[BLOGIC_MAXDEV]; | |
2026 | unsigned char req_replylen; | |
2027 | int tgt_id; | |
2028 | ||
1da177e4 | 2029 | /* |
839cb99e KA |
2030 | Wait a few seconds between the Host Adapter Hard Reset which |
2031 | initiates a SCSI Bus Reset and issuing any SCSI Commands. Some | |
2032 | SCSI devices get confused if they receive SCSI Commands too soon | |
2033 | after a SCSI Bus Reset. | |
1da177e4 | 2034 | */ |
839cb99e | 2035 | blogic_delay(adapter->bus_settle_time); |
1da177e4 LT |
2036 | /* |
2037 | FlashPoint Host Adapters do not provide for Target Device Inquiry. | |
2038 | */ | |
839cb99e | 2039 | if (blogic_flashpoint_type(adapter)) |
1da177e4 LT |
2040 | return true; |
2041 | /* | |
2042 | Inhibit the Target Device Inquiry if requested. | |
2043 | */ | |
839cb99e | 2044 | if (adapter->drvr_opts != NULL && adapter->drvr_opts->stop_tgt_inquiry) |
1da177e4 LT |
2045 | return true; |
2046 | /* | |
839cb99e KA |
2047 | Issue the Inquire Target Devices command for host adapters with |
2048 | firmware version 4.25 or later, or the Inquire Installed Devices | |
2049 | ID 0 to 7 command for older host adapters. This is necessary to | |
2050 | force Synchronous Transfer Negotiation so that the Inquire Setup | |
2051 | Information and Inquire Synchronous Period commands will return | |
2052 | valid data. The Inquire Target Devices command is preferable to | |
2053 | Inquire Installed Devices ID 0 to 7 since it only probes Logical | |
2054 | Unit 0 of each Target Device. | |
1da177e4 | 2055 | */ |
839cb99e | 2056 | if (strcmp(adapter->fw_ver, "4.25") >= 0) { |
1da177e4 LT |
2057 | |
2058 | /* | |
839cb99e KA |
2059 | Issue a Inquire Target Devices command. Inquire Target |
2060 | Devices only tests Logical Unit 0 of each Target Device | |
2061 | unlike the Inquire Installed Devices commands which test | |
2062 | Logical Units 0 - 7. Two bytes are returned, where byte | |
2063 | 0 bit 0 set indicates that Target Device 0 exists, and so on. | |
1da177e4 LT |
2064 | */ |
2065 | ||
839cb99e KA |
2066 | if (blogic_cmd(adapter, BLOGIC_INQ_DEV, NULL, 0, |
2067 | &installed_devs, sizeof(installed_devs)) | |
2068 | != sizeof(installed_devs)) | |
2069 | return blogic_failure(adapter, "INQUIRE TARGET DEVICES"); | |
2070 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) | |
2071 | adapter->tgt_flags[tgt_id].tgt_exists = | |
2072 | (installed_devs & (1 << tgt_id) ? true : false); | |
1da177e4 LT |
2073 | } else { |
2074 | ||
2075 | /* | |
839cb99e KA |
2076 | Issue an Inquire Installed Devices command. For each |
2077 | Target Device, a byte is returned where bit 0 set | |
2078 | indicates that Logical Unit 0 * exists, bit 1 set | |
2079 | indicates that Logical Unit 1 exists, and so on. | |
1da177e4 LT |
2080 | */ |
2081 | ||
839cb99e KA |
2082 | if (blogic_cmd(adapter, BLOGIC_INQ_DEV0TO7, NULL, 0, |
2083 | &installed_devs0to7, sizeof(installed_devs0to7)) | |
2084 | != sizeof(installed_devs0to7)) | |
2085 | return blogic_failure(adapter, | |
2086 | "INQUIRE INSTALLED DEVICES ID 0 TO 7"); | |
2087 | for (tgt_id = 0; tgt_id < 8; tgt_id++) | |
2088 | adapter->tgt_flags[tgt_id].tgt_exists = | |
3fa65812 | 2089 | installed_devs0to7[tgt_id] != 0; |
1da177e4 LT |
2090 | } |
2091 | /* | |
2092 | Issue the Inquire Setup Information command. | |
2093 | */ | |
839cb99e KA |
2094 | req_replylen = sizeof(setupinfo); |
2095 | if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen, | |
2096 | sizeof(req_replylen), &setupinfo, sizeof(setupinfo)) | |
2097 | != sizeof(setupinfo)) | |
2098 | return blogic_failure(adapter, "INQUIRE SETUP INFORMATION"); | |
2099 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) | |
2100 | adapter->sync_offset[tgt_id] = (tgt_id < 8 ? setupinfo.sync0to7[tgt_id].offset : setupinfo.sync8to15[tgt_id - 8].offset); | |
2101 | if (strcmp(adapter->fw_ver, "5.06L") >= 0) | |
2102 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) | |
2103 | adapter->tgt_flags[tgt_id].wide_active = (tgt_id < 8 ? (setupinfo.wide_tx_active0to7 & (1 << tgt_id) ? true : false) : (setupinfo.wide_tx_active8to15 & (1 << (tgt_id - 8)) ? true : false)); | |
1da177e4 LT |
2104 | /* |
2105 | Issue the Inquire Synchronous Period command. | |
2106 | */ | |
839cb99e | 2107 | if (adapter->fw_ver[0] >= '3') { |
1da177e4 | 2108 | |
839cb99e KA |
2109 | /* Issue a Inquire Synchronous Period command. For each |
2110 | Target Device, a byte is returned which represents the | |
2111 | Synchronous Transfer Period in units of 10 nanoseconds. | |
1da177e4 LT |
2112 | */ |
2113 | ||
839cb99e KA |
2114 | req_replylen = sizeof(sync_period); |
2115 | if (blogic_cmd(adapter, BLOGIC_INQ_SYNC_PERIOD, &req_replylen, | |
2116 | sizeof(req_replylen), &sync_period, | |
2117 | sizeof(sync_period)) != sizeof(sync_period)) | |
2118 | return blogic_failure(adapter, | |
2119 | "INQUIRE SYNCHRONOUS PERIOD"); | |
2120 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) | |
2121 | adapter->sync_period[tgt_id] = sync_period[tgt_id]; | |
1da177e4 | 2122 | } else |
839cb99e KA |
2123 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
2124 | if (setupinfo.sync0to7[tgt_id].offset > 0) | |
2125 | adapter->sync_period[tgt_id] = 20 + 5 * setupinfo.sync0to7[tgt_id].tx_period; | |
1da177e4 LT |
2126 | /* |
2127 | Indicate the Target Device Inquiry completed successfully. | |
2128 | */ | |
2129 | return true; | |
2130 | } | |
2131 | ||
2132 | /* | |
839cb99e | 2133 | blogic_inithoststruct initializes the fields in the SCSI Host |
1da177e4 LT |
2134 | structure. The base, io_port, n_io_ports, irq, and dma_channel fields in the |
2135 | SCSI Host structure are intentionally left uninitialized, as this driver | |
2136 | handles acquisition and release of these resources explicitly, as well as | |
2137 | ensuring exclusive access to the Host Adapter hardware and data structures | |
2138 | through explicit acquisition and release of the Host Adapter's Lock. | |
2139 | */ | |
2140 | ||
839cb99e KA |
2141 | static void __init blogic_inithoststruct(struct blogic_adapter *adapter, |
2142 | struct Scsi_Host *host) | |
1da177e4 | 2143 | { |
839cb99e KA |
2144 | host->max_id = adapter->maxdev; |
2145 | host->max_lun = adapter->maxlun; | |
2146 | host->max_channel = 0; | |
2147 | host->unique_id = adapter->io_addr; | |
2148 | host->this_id = adapter->scsi_id; | |
2149 | host->can_queue = adapter->drvr_qdepth; | |
2150 | host->sg_tablesize = adapter->drvr_sglimit; | |
839cb99e | 2151 | host->cmd_per_lun = adapter->untag_qdepth; |
1da177e4 LT |
2152 | } |
2153 | ||
2154 | /* | |
839cb99e | 2155 | blogic_slaveconfig will actually set the queue depth on individual |
1da177e4 LT |
2156 | scsi devices as they are permanently added to the device chain. We |
2157 | shamelessly rip off the SelectQueueDepths code to make this work mostly | |
2158 | like it used to. Since we don't get called once at the end of the scan | |
2159 | but instead get called for each device, we have to do things a bit | |
2160 | differently. | |
2161 | */ | |
839cb99e | 2162 | static int blogic_slaveconfig(struct scsi_device *dev) |
1da177e4 | 2163 | { |
839cb99e KA |
2164 | struct blogic_adapter *adapter = |
2165 | (struct blogic_adapter *) dev->host->hostdata; | |
2166 | int tgt_id = dev->id; | |
2167 | int qdepth = adapter->qdepth[tgt_id]; | |
2168 | ||
2169 | if (adapter->tgt_flags[tgt_id].tagq_ok && | |
2170 | (adapter->tagq_ok & (1 << tgt_id))) { | |
2171 | if (qdepth == 0) | |
2172 | qdepth = BLOGIC_MAX_AUTO_TAG_DEPTH; | |
2173 | adapter->qdepth[tgt_id] = qdepth; | |
db5ed4df | 2174 | scsi_change_queue_depth(dev, qdepth); |
1da177e4 | 2175 | } else { |
839cb99e KA |
2176 | adapter->tagq_ok &= ~(1 << tgt_id); |
2177 | qdepth = adapter->untag_qdepth; | |
2178 | adapter->qdepth[tgt_id] = qdepth; | |
db5ed4df | 2179 | scsi_change_queue_depth(dev, qdepth); |
839cb99e KA |
2180 | } |
2181 | qdepth = 0; | |
2182 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) | |
2183 | if (adapter->tgt_flags[tgt_id].tgt_exists) | |
2184 | qdepth += adapter->qdepth[tgt_id]; | |
2185 | if (qdepth > adapter->alloc_ccbs) | |
2186 | blogic_create_addlccbs(adapter, qdepth - adapter->alloc_ccbs, | |
2187 | false); | |
1da177e4 LT |
2188 | return 0; |
2189 | } | |
2190 | ||
2191 | /* | |
839cb99e | 2192 | blogic_init probes for BusLogic Host Adapters at the standard |
1da177e4 LT |
2193 | I/O Addresses where they may be located, initializing, registering, and |
2194 | reporting the configuration of each BusLogic Host Adapter it finds. It | |
2195 | returns the number of BusLogic Host Adapters successfully initialized and | |
2196 | registered. | |
2197 | */ | |
2198 | ||
839cb99e | 2199 | static int __init blogic_init(void) |
1da177e4 | 2200 | { |
81cb3eb6 | 2201 | int drvr_optindex = 0, probeindex; |
839cb99e | 2202 | struct blogic_adapter *adapter; |
d2afb3ae | 2203 | int ret = 0; |
1da177e4 LT |
2204 | |
2205 | #ifdef MODULE | |
2206 | if (BusLogic) | |
839cb99e | 2207 | blogic_setup(BusLogic); |
1da177e4 LT |
2208 | #endif |
2209 | ||
839cb99e | 2210 | if (blogic_probe_options.noprobe) |
1da177e4 | 2211 | return -ENODEV; |
839cb99e | 2212 | blogic_probeinfo_list = |
6396bb22 | 2213 | kcalloc(BLOGIC_MAX_ADAPTERS, sizeof(struct blogic_probeinfo), |
839cb99e KA |
2214 | GFP_KERNEL); |
2215 | if (blogic_probeinfo_list == NULL) { | |
2216 | blogic_err("BusLogic: Unable to allocate Probe Info List\n", | |
2217 | NULL); | |
1da177e4 LT |
2218 | return -ENOMEM; |
2219 | } | |
db3a8815 | 2220 | |
391e2f25 | 2221 | adapter = kzalloc(sizeof(struct blogic_adapter), GFP_KERNEL); |
839cb99e KA |
2222 | if (adapter == NULL) { |
2223 | kfree(blogic_probeinfo_list); | |
2224 | blogic_err("BusLogic: Unable to allocate Prototype Host Adapter\n", NULL); | |
1da177e4 LT |
2225 | return -ENOMEM; |
2226 | } | |
db3a8815 | 2227 | |
1da177e4 LT |
2228 | #ifdef MODULE |
2229 | if (BusLogic != NULL) | |
839cb99e | 2230 | blogic_setup(BusLogic); |
1da177e4 | 2231 | #endif |
839cb99e KA |
2232 | blogic_init_probeinfo_list(adapter); |
2233 | for (probeindex = 0; probeindex < blogic_probeinfo_count; probeindex++) { | |
2234 | struct blogic_probeinfo *probeinfo = | |
2235 | &blogic_probeinfo_list[probeindex]; | |
2236 | struct blogic_adapter *myadapter = adapter; | |
2237 | struct Scsi_Host *host; | |
2238 | ||
2239 | if (probeinfo->io_addr == 0) | |
1da177e4 | 2240 | continue; |
839cb99e KA |
2241 | memset(myadapter, 0, sizeof(struct blogic_adapter)); |
2242 | myadapter->adapter_type = probeinfo->adapter_type; | |
2243 | myadapter->adapter_bus_type = probeinfo->adapter_bus_type; | |
2244 | myadapter->io_addr = probeinfo->io_addr; | |
2245 | myadapter->pci_addr = probeinfo->pci_addr; | |
2246 | myadapter->bus = probeinfo->bus; | |
2247 | myadapter->dev = probeinfo->dev; | |
2248 | myadapter->pci_device = probeinfo->pci_device; | |
2249 | myadapter->irq_ch = probeinfo->irq_ch; | |
2250 | myadapter->addr_count = | |
2251 | blogic_adapter_addr_count[myadapter->adapter_type]; | |
1079a2d2 ZA |
2252 | |
2253 | /* | |
2254 | Make sure region is free prior to probing. | |
2255 | */ | |
839cb99e | 2256 | if (!request_region(myadapter->io_addr, myadapter->addr_count, |
1079a2d2 ZA |
2257 | "BusLogic")) |
2258 | continue; | |
1da177e4 | 2259 | /* |
839cb99e KA |
2260 | Probe the Host Adapter. If unsuccessful, abort further |
2261 | initialization. | |
1da177e4 | 2262 | */ |
839cb99e KA |
2263 | if (!blogic_probe(myadapter)) { |
2264 | release_region(myadapter->io_addr, | |
2265 | myadapter->addr_count); | |
1da177e4 | 2266 | continue; |
1079a2d2 | 2267 | } |
1da177e4 LT |
2268 | /* |
2269 | Hard Reset the Host Adapter. If unsuccessful, abort further | |
2270 | initialization. | |
2271 | */ | |
839cb99e KA |
2272 | if (!blogic_hwreset(myadapter, true)) { |
2273 | release_region(myadapter->io_addr, | |
2274 | myadapter->addr_count); | |
1da177e4 | 2275 | continue; |
1079a2d2 | 2276 | } |
1da177e4 | 2277 | /* |
839cb99e KA |
2278 | Check the Host Adapter. If unsuccessful, abort further |
2279 | initialization. | |
1da177e4 | 2280 | */ |
839cb99e KA |
2281 | if (!blogic_checkadapter(myadapter)) { |
2282 | release_region(myadapter->io_addr, | |
2283 | myadapter->addr_count); | |
1da177e4 | 2284 | continue; |
1079a2d2 | 2285 | } |
1da177e4 LT |
2286 | /* |
2287 | Initialize the Driver Options field if provided. | |
2288 | */ | |
839cb99e KA |
2289 | if (drvr_optindex < blogic_drvr_options_count) |
2290 | myadapter->drvr_opts = | |
2291 | &blogic_drvr_options[drvr_optindex++]; | |
1da177e4 | 2292 | /* |
839cb99e KA |
2293 | Announce the Driver Version and Date, Author's Name, |
2294 | Copyright Notice, and Electronic Mail Address. | |
1da177e4 | 2295 | */ |
839cb99e | 2296 | blogic_announce_drvr(myadapter); |
1da177e4 LT |
2297 | /* |
2298 | Register the SCSI Host structure. | |
2299 | */ | |
2300 | ||
839cb99e KA |
2301 | host = scsi_host_alloc(&blogic_template, |
2302 | sizeof(struct blogic_adapter)); | |
2303 | if (host == NULL) { | |
2304 | release_region(myadapter->io_addr, | |
2305 | myadapter->addr_count); | |
1da177e4 LT |
2306 | continue; |
2307 | } | |
839cb99e KA |
2308 | myadapter = (struct blogic_adapter *) host->hostdata; |
2309 | memcpy(myadapter, adapter, sizeof(struct blogic_adapter)); | |
2310 | myadapter->scsi_host = host; | |
2311 | myadapter->host_no = host->host_no; | |
1da177e4 | 2312 | /* |
839cb99e KA |
2313 | Add Host Adapter to the end of the list of registered |
2314 | BusLogic Host Adapters. | |
1da177e4 | 2315 | */ |
839cb99e | 2316 | list_add_tail(&myadapter->host_list, &blogic_host_list); |
1da177e4 LT |
2317 | |
2318 | /* | |
839cb99e KA |
2319 | Read the Host Adapter Configuration, Configure the Host |
2320 | Adapter, Acquire the System Resources necessary to use | |
2321 | the Host Adapter, then Create the Initial CCBs, Initialize | |
2322 | the Host Adapter, and finally perform Target Device | |
2323 | Inquiry. From this point onward, any failure will be | |
2324 | assumed to be due to a problem with the Host Adapter, | |
2325 | rather than due to having mistakenly identified this port | |
2326 | as belonging to a BusLogic Host Adapter. The I/O Address | |
2327 | range will not be released, thereby preventing it from | |
2328 | being incorrectly identified as any other type of Host | |
2329 | Adapter. | |
1da177e4 | 2330 | */ |
839cb99e KA |
2331 | if (blogic_rdconfig(myadapter) && |
2332 | blogic_reportconfig(myadapter) && | |
2333 | blogic_getres(myadapter) && | |
2334 | blogic_create_initccbs(myadapter) && | |
2335 | blogic_initadapter(myadapter) && | |
2336 | blogic_inquiry(myadapter)) { | |
1da177e4 | 2337 | /* |
839cb99e KA |
2338 | Initialization has been completed successfully. |
2339 | Release and re-register usage of the I/O Address | |
2340 | range so that the Model Name of the Host Adapter | |
2341 | will appear, and initialize the SCSI Host structure. | |
1da177e4 | 2342 | */ |
839cb99e KA |
2343 | release_region(myadapter->io_addr, |
2344 | myadapter->addr_count); | |
2345 | if (!request_region(myadapter->io_addr, | |
2346 | myadapter->addr_count, | |
2347 | myadapter->full_model)) { | |
d2afb3ae DW |
2348 | printk(KERN_WARNING |
2349 | "BusLogic: Release and re-register of " | |
2350 | "port 0x%04lx failed \n", | |
839cb99e KA |
2351 | (unsigned long)myadapter->io_addr); |
2352 | blogic_destroy_ccbs(myadapter); | |
2353 | blogic_relres(myadapter); | |
2354 | list_del(&myadapter->host_list); | |
2355 | scsi_host_put(host); | |
d2afb3ae | 2356 | ret = -ENOMEM; |
1da177e4 | 2357 | } else { |
839cb99e KA |
2358 | blogic_inithoststruct(myadapter, |
2359 | host); | |
2360 | if (scsi_add_host(host, myadapter->pci_device | |
2361 | ? &myadapter->pci_device->dev | |
d2afb3ae DW |
2362 | : NULL)) { |
2363 | printk(KERN_WARNING | |
2364 | "BusLogic: scsi_add_host()" | |
2365 | "failed!\n"); | |
839cb99e KA |
2366 | blogic_destroy_ccbs(myadapter); |
2367 | blogic_relres(myadapter); | |
2368 | list_del(&myadapter->host_list); | |
2369 | scsi_host_put(host); | |
d2afb3ae | 2370 | ret = -ENODEV; |
81cb3eb6 | 2371 | } else |
839cb99e | 2372 | scsi_scan_host(host); |
1da177e4 LT |
2373 | } |
2374 | } else { | |
2375 | /* | |
839cb99e KA |
2376 | An error occurred during Host Adapter Configuration |
2377 | Querying, Host Adapter Configuration, Resource | |
2378 | Acquisition, CCB Creation, Host Adapter | |
2379 | Initialization, or Target Device Inquiry, so | |
2380 | remove Host Adapter from the list of registered | |
2381 | BusLogic Host Adapters, destroy the CCBs, Release | |
2382 | the System Resources, and Unregister the SCSI | |
1da177e4 LT |
2383 | Host. |
2384 | */ | |
839cb99e KA |
2385 | blogic_destroy_ccbs(myadapter); |
2386 | blogic_relres(myadapter); | |
2387 | list_del(&myadapter->host_list); | |
2388 | scsi_host_put(host); | |
d2afb3ae | 2389 | ret = -ENODEV; |
1da177e4 LT |
2390 | } |
2391 | } | |
839cb99e KA |
2392 | kfree(adapter); |
2393 | kfree(blogic_probeinfo_list); | |
2394 | blogic_probeinfo_list = NULL; | |
d2afb3ae | 2395 | return ret; |
1da177e4 LT |
2396 | } |
2397 | ||
2398 | ||
2399 | /* | |
839cb99e | 2400 | blogic_deladapter releases all resources previously acquired to |
1da177e4 LT |
2401 | support a specific Host Adapter, including the I/O Address range, and |
2402 | unregisters the BusLogic Host Adapter. | |
2403 | */ | |
2404 | ||
839cb99e | 2405 | static int __exit blogic_deladapter(struct blogic_adapter *adapter) |
1da177e4 | 2406 | { |
839cb99e | 2407 | struct Scsi_Host *host = adapter->scsi_host; |
1da177e4 | 2408 | |
839cb99e | 2409 | scsi_remove_host(host); |
1da177e4 LT |
2410 | |
2411 | /* | |
2412 | FlashPoint Host Adapters must first be released by the FlashPoint | |
2413 | SCCB Manager. | |
2414 | */ | |
839cb99e KA |
2415 | if (blogic_flashpoint_type(adapter)) |
2416 | FlashPoint_ReleaseHostAdapter(adapter->cardhandle); | |
1da177e4 LT |
2417 | /* |
2418 | Destroy the CCBs and release any system resources acquired to | |
2419 | support Host Adapter. | |
2420 | */ | |
839cb99e KA |
2421 | blogic_destroy_ccbs(adapter); |
2422 | blogic_relres(adapter); | |
1da177e4 LT |
2423 | /* |
2424 | Release usage of the I/O Address range. | |
2425 | */ | |
839cb99e | 2426 | release_region(adapter->io_addr, adapter->addr_count); |
1da177e4 | 2427 | /* |
839cb99e KA |
2428 | Remove Host Adapter from the list of registered BusLogic |
2429 | Host Adapters. | |
1da177e4 | 2430 | */ |
839cb99e | 2431 | list_del(&adapter->host_list); |
1da177e4 | 2432 | |
839cb99e | 2433 | scsi_host_put(host); |
1da177e4 LT |
2434 | return 0; |
2435 | } | |
2436 | ||
2437 | ||
2438 | /* | |
839cb99e | 2439 | blogic_qcompleted_ccb queues CCB for completion processing. |
1da177e4 LT |
2440 | */ |
2441 | ||
839cb99e | 2442 | static void blogic_qcompleted_ccb(struct blogic_ccb *ccb) |
1da177e4 | 2443 | { |
839cb99e KA |
2444 | struct blogic_adapter *adapter = ccb->adapter; |
2445 | ||
2446 | ccb->status = BLOGIC_CCB_COMPLETE; | |
2447 | ccb->next = NULL; | |
2448 | if (adapter->firstccb == NULL) { | |
2449 | adapter->firstccb = ccb; | |
2450 | adapter->lastccb = ccb; | |
1da177e4 | 2451 | } else { |
839cb99e KA |
2452 | adapter->lastccb->next = ccb; |
2453 | adapter->lastccb = ccb; | |
1da177e4 | 2454 | } |
839cb99e | 2455 | adapter->active_cmds[ccb->tgt_id]--; |
1da177e4 LT |
2456 | } |
2457 | ||
2458 | ||
2459 | /* | |
839cb99e | 2460 | blogic_resultcode computes a SCSI Subsystem Result Code from |
1da177e4 LT |
2461 | the Host Adapter Status and Target Device Status. |
2462 | */ | |
2463 | ||
839cb99e KA |
2464 | static int blogic_resultcode(struct blogic_adapter *adapter, |
2465 | enum blogic_adapter_status adapter_status, | |
2466 | enum blogic_tgt_status tgt_status) | |
1da177e4 | 2467 | { |
839cb99e KA |
2468 | int hoststatus; |
2469 | ||
2470 | switch (adapter_status) { | |
2471 | case BLOGIC_CMD_CMPLT_NORMAL: | |
2472 | case BLOGIC_LINK_CMD_CMPLT: | |
2473 | case BLOGIC_LINK_CMD_CMPLT_FLAG: | |
2474 | hoststatus = DID_OK; | |
1da177e4 | 2475 | break; |
839cb99e KA |
2476 | case BLOGIC_SELECT_TIMEOUT: |
2477 | hoststatus = DID_TIME_OUT; | |
1da177e4 | 2478 | break; |
839cb99e KA |
2479 | case BLOGIC_INVALID_OUTBOX_CODE: |
2480 | case BLOGIC_INVALID_CMD_CODE: | |
2481 | case BLOGIC_BAD_CMD_PARAM: | |
2482 | blogic_warn("BusLogic Driver Protocol Error 0x%02X\n", | |
2483 | adapter, adapter_status); | |
df561f66 | 2484 | fallthrough; |
839cb99e KA |
2485 | case BLOGIC_DATA_UNDERRUN: |
2486 | case BLOGIC_DATA_OVERRUN: | |
2487 | case BLOGIC_NOEXPECT_BUSFREE: | |
2488 | case BLOGIC_LINKCCB_BADLUN: | |
2489 | case BLOGIC_AUTOREQSENSE_FAIL: | |
2490 | case BLOGIC_TAGQUEUE_REJECT: | |
2491 | case BLOGIC_BAD_MSG_RCVD: | |
2492 | case BLOGIC_HW_FAIL: | |
2493 | case BLOGIC_BAD_RECONNECT: | |
2494 | case BLOGIC_ABRT_QUEUE: | |
2495 | case BLOGIC_ADAPTER_SW_ERROR: | |
2496 | case BLOGIC_HW_TIMEOUT: | |
2497 | case BLOGIC_PARITY_ERR: | |
2498 | hoststatus = DID_ERROR; | |
1da177e4 | 2499 | break; |
839cb99e KA |
2500 | case BLOGIC_INVALID_BUSPHASE: |
2501 | case BLOGIC_NORESPONSE_TO_ATN: | |
2502 | case BLOGIC_HW_RESET: | |
2503 | case BLOGIC_RST_FROM_OTHERDEV: | |
2504 | case BLOGIC_HW_BDR: | |
2505 | hoststatus = DID_RESET; | |
1da177e4 LT |
2506 | break; |
2507 | default: | |
839cb99e KA |
2508 | blogic_warn("Unknown Host Adapter Status 0x%02X\n", adapter, |
2509 | adapter_status); | |
2510 | hoststatus = DID_ERROR; | |
1da177e4 LT |
2511 | break; |
2512 | } | |
839cb99e | 2513 | return (hoststatus << 16) | tgt_status; |
1da177e4 LT |
2514 | } |
2515 | ||
9f7c2232 AB |
2516 | /* |
2517 | * turn the dma address from an inbox into a ccb pointer | |
2518 | * This is rather inefficient. | |
2519 | */ | |
2520 | static struct blogic_ccb * | |
2521 | blogic_inbox_to_ccb(struct blogic_adapter *adapter, struct blogic_inbox *inbox) | |
2522 | { | |
2523 | struct blogic_ccb *ccb; | |
2524 | ||
2525 | for (ccb = adapter->all_ccbs; ccb; ccb = ccb->next_all) | |
2526 | if (inbox->ccb == ccb->dma_handle) | |
2527 | break; | |
2528 | ||
2529 | return ccb; | |
2530 | } | |
1da177e4 LT |
2531 | |
2532 | /* | |
839cb99e | 2533 | blogic_scan_inbox scans the Incoming Mailboxes saving any |
1da177e4 LT |
2534 | Incoming Mailbox entries for completion processing. |
2535 | */ | |
839cb99e | 2536 | static void blogic_scan_inbox(struct blogic_adapter *adapter) |
1da177e4 LT |
2537 | { |
2538 | /* | |
839cb99e KA |
2539 | Scan through the Incoming Mailboxes in Strict Round Robin |
2540 | fashion, saving any completed CCBs for further processing. It | |
2541 | is essential that for each CCB and SCSI Command issued, command | |
2542 | completion processing is performed exactly once. Therefore, | |
2543 | only Incoming Mailboxes with completion code Command Completed | |
2544 | Without Error, Command Completed With Error, or Command Aborted | |
2545 | At Host Request are saved for completion processing. When an | |
2546 | Incoming Mailbox has a completion code of Aborted Command Not | |
2547 | Found, the CCB had already completed or been aborted before the | |
2548 | current Abort request was processed, and so completion processing | |
2549 | has already occurred and no further action should be taken. | |
2550 | */ | |
2551 | struct blogic_inbox *next_inbox = adapter->next_inbox; | |
2552 | enum blogic_cmplt_code comp_code; | |
2553 | ||
2554 | while ((comp_code = next_inbox->comp_code) != BLOGIC_INBOX_FREE) { | |
9f7c2232 AB |
2555 | struct blogic_ccb *ccb = blogic_inbox_to_ccb(adapter, next_inbox); |
2556 | if (!ccb) { | |
2557 | /* | |
2558 | * This should never happen, unless the CCB list is | |
2559 | * corrupted in memory. | |
2560 | */ | |
2561 | blogic_warn("Could not find CCB for dma address %x\n", adapter, next_inbox->ccb); | |
2562 | } else if (comp_code != BLOGIC_CMD_NOTFOUND) { | |
839cb99e KA |
2563 | if (ccb->status == BLOGIC_CCB_ACTIVE || |
2564 | ccb->status == BLOGIC_CCB_RESET) { | |
1da177e4 | 2565 | /* |
839cb99e KA |
2566 | Save the Completion Code for this CCB and |
2567 | queue the CCB for completion processing. | |
1da177e4 | 2568 | */ |
839cb99e KA |
2569 | ccb->comp_code = comp_code; |
2570 | blogic_qcompleted_ccb(ccb); | |
1da177e4 LT |
2571 | } else { |
2572 | /* | |
839cb99e KA |
2573 | If a CCB ever appears in an Incoming Mailbox |
2574 | and is not marked as status Active or Reset, | |
2575 | then there is most likely a bug in | |
1da177e4 LT |
2576 | the Host Adapter firmware. |
2577 | */ | |
43622697 | 2578 | blogic_warn("Illegal CCB #%ld status %d in Incoming Mailbox\n", adapter, ccb->serial, ccb->status); |
1da177e4 LT |
2579 | } |
2580 | } | |
839cb99e KA |
2581 | next_inbox->comp_code = BLOGIC_INBOX_FREE; |
2582 | if (++next_inbox > adapter->last_inbox) | |
2583 | next_inbox = adapter->first_inbox; | |
1da177e4 | 2584 | } |
839cb99e | 2585 | adapter->next_inbox = next_inbox; |
1da177e4 LT |
2586 | } |
2587 | ||
2588 | ||
2589 | /* | |
839cb99e | 2590 | blogic_process_ccbs iterates over the completed CCBs for Host |
1da177e4 LT |
2591 | Adapter setting the SCSI Command Result Codes, deallocating the CCBs, and |
2592 | calling the SCSI Subsystem Completion Routines. The Host Adapter's Lock | |
2593 | should already have been acquired by the caller. | |
2594 | */ | |
2595 | ||
839cb99e | 2596 | static void blogic_process_ccbs(struct blogic_adapter *adapter) |
1da177e4 | 2597 | { |
839cb99e | 2598 | if (adapter->processing_ccbs) |
1da177e4 | 2599 | return; |
839cb99e KA |
2600 | adapter->processing_ccbs = true; |
2601 | while (adapter->firstccb != NULL) { | |
2602 | struct blogic_ccb *ccb = adapter->firstccb; | |
2603 | struct scsi_cmnd *command = ccb->command; | |
2604 | adapter->firstccb = ccb->next; | |
2605 | if (adapter->firstccb == NULL) | |
2606 | adapter->lastccb = NULL; | |
1da177e4 LT |
2607 | /* |
2608 | Process the Completed CCB. | |
2609 | */ | |
839cb99e KA |
2610 | if (ccb->opcode == BLOGIC_BDR) { |
2611 | int tgt_id = ccb->tgt_id; | |
2612 | ||
43622697 | 2613 | blogic_warn("Bus Device Reset CCB #%ld to Target %d Completed\n", adapter, ccb->serial, tgt_id); |
839cb99e KA |
2614 | blogic_inc_count(&adapter->tgt_stats[tgt_id].bdr_done); |
2615 | adapter->tgt_flags[tgt_id].tagq_active = false; | |
2616 | adapter->cmds_since_rst[tgt_id] = 0; | |
2617 | adapter->last_resetdone[tgt_id] = jiffies; | |
1da177e4 LT |
2618 | /* |
2619 | Place CCB back on the Host Adapter's free list. | |
2620 | */ | |
eeceec90 KA |
2621 | blogic_dealloc_ccb(ccb, 1); |
2622 | #if 0 /* this needs to be redone different for new EH */ | |
1da177e4 | 2623 | /* |
839cb99e KA |
2624 | Bus Device Reset CCBs have the command field |
2625 | non-NULL only when a Bus Device Reset was requested | |
2626 | for a command that did not have a currently active | |
2627 | CCB in the Host Adapter (i.e., a Synchronous Bus | |
2628 | Device Reset), and hence would not have its | |
2629 | Completion Routine called otherwise. | |
1da177e4 | 2630 | */ |
839cb99e KA |
2631 | while (command != NULL) { |
2632 | struct scsi_cmnd *nxt_cmd = | |
2633 | command->reset_chain; | |
2634 | command->reset_chain = NULL; | |
2635 | command->result = DID_RESET << 16; | |
0800a26a | 2636 | scsi_done(command); |
839cb99e | 2637 | command = nxt_cmd; |
1da177e4 LT |
2638 | } |
2639 | #endif | |
2640 | /* | |
839cb99e KA |
2641 | Iterate over the CCBs for this Host Adapter |
2642 | performing completion processing for any CCBs | |
2643 | marked as Reset for this Target. | |
1da177e4 | 2644 | */ |
839cb99e KA |
2645 | for (ccb = adapter->all_ccbs; ccb != NULL; |
2646 | ccb = ccb->next_all) | |
2647 | if (ccb->status == BLOGIC_CCB_RESET && | |
2648 | ccb->tgt_id == tgt_id) { | |
2649 | command = ccb->command; | |
eeceec90 | 2650 | blogic_dealloc_ccb(ccb, 1); |
839cb99e KA |
2651 | adapter->active_cmds[tgt_id]--; |
2652 | command->result = DID_RESET << 16; | |
0800a26a | 2653 | scsi_done(command); |
1da177e4 | 2654 | } |
839cb99e | 2655 | adapter->bdr_pend[tgt_id] = NULL; |
1da177e4 LT |
2656 | } else { |
2657 | /* | |
839cb99e KA |
2658 | Translate the Completion Code, Host Adapter Status, |
2659 | and Target Device Status into a SCSI Subsystem | |
2660 | Result Code. | |
1da177e4 | 2661 | */ |
839cb99e KA |
2662 | switch (ccb->comp_code) { |
2663 | case BLOGIC_INBOX_FREE: | |
2664 | case BLOGIC_CMD_NOTFOUND: | |
2665 | case BLOGIC_INVALID_CCB: | |
2666 | blogic_warn("CCB #%ld to Target %d Impossible State\n", adapter, ccb->serial, ccb->tgt_id); | |
1da177e4 | 2667 | break; |
839cb99e KA |
2668 | case BLOGIC_CMD_COMPLETE_GOOD: |
2669 | adapter->tgt_stats[ccb->tgt_id] | |
2670 | .cmds_complete++; | |
2671 | adapter->tgt_flags[ccb->tgt_id] | |
2672 | .cmd_good = true; | |
2673 | command->result = DID_OK << 16; | |
1da177e4 | 2674 | break; |
839cb99e KA |
2675 | case BLOGIC_CMD_ABORT_BY_HOST: |
2676 | blogic_warn("CCB #%ld to Target %d Aborted\n", | |
2677 | adapter, ccb->serial, ccb->tgt_id); | |
2678 | blogic_inc_count(&adapter->tgt_stats[ccb->tgt_id].aborts_done); | |
2679 | command->result = DID_ABORT << 16; | |
1da177e4 | 2680 | break; |
839cb99e KA |
2681 | case BLOGIC_CMD_COMPLETE_ERROR: |
2682 | command->result = blogic_resultcode(adapter, | |
2683 | ccb->adapter_status, ccb->tgt_status); | |
2684 | if (ccb->adapter_status != BLOGIC_SELECT_TIMEOUT) { | |
2685 | adapter->tgt_stats[ccb->tgt_id] | |
2686 | .cmds_complete++; | |
2687 | if (blogic_global_options.trace_err) { | |
1da177e4 | 2688 | int i; |
839cb99e | 2689 | blogic_notice("CCB #%ld Target %d: Result %X Host " |
43622697 | 2690 | "Adapter Status %02X Target Status %02X\n", adapter, ccb->serial, ccb->tgt_id, command->result, ccb->adapter_status, ccb->tgt_status); |
839cb99e KA |
2691 | blogic_notice("CDB ", adapter); |
2692 | for (i = 0; i < ccb->cdblen; i++) | |
2693 | blogic_notice(" %02X", adapter, ccb->cdb[i]); | |
2694 | blogic_notice("\n", adapter); | |
2695 | blogic_notice("Sense ", adapter); | |
2696 | for (i = 0; i < ccb->sense_datalen; i++) | |
2697 | blogic_notice(" %02X", adapter, command->sense_buffer[i]); | |
2698 | blogic_notice("\n", adapter); | |
1da177e4 LT |
2699 | } |
2700 | } | |
2701 | break; | |
2702 | } | |
2703 | /* | |
2704 | When an INQUIRY command completes normally, save the | |
2705 | CmdQue (Tagged Queuing Supported) and WBus16 (16 Bit | |
2706 | Wide Data Transfers Supported) bits. | |
2707 | */ | |
839cb99e KA |
2708 | if (ccb->cdb[0] == INQUIRY && ccb->cdb[1] == 0 && |
2709 | ccb->adapter_status == BLOGIC_CMD_CMPLT_NORMAL) { | |
2710 | struct blogic_tgt_flags *tgt_flags = | |
2711 | &adapter->tgt_flags[ccb->tgt_id]; | |
2712 | struct scsi_inquiry *inquiry = | |
2713 | (struct scsi_inquiry *) scsi_sglist(command); | |
2714 | tgt_flags->tgt_exists = true; | |
2715 | tgt_flags->tagq_ok = inquiry->CmdQue; | |
2716 | tgt_flags->wide_ok = inquiry->WBus16; | |
1da177e4 LT |
2717 | } |
2718 | /* | |
2719 | Place CCB back on the Host Adapter's free list. | |
2720 | */ | |
eeceec90 | 2721 | blogic_dealloc_ccb(ccb, 1); |
1da177e4 LT |
2722 | /* |
2723 | Call the SCSI Command Completion Routine. | |
2724 | */ | |
0800a26a | 2725 | scsi_done(command); |
1da177e4 LT |
2726 | } |
2727 | } | |
839cb99e | 2728 | adapter->processing_ccbs = false; |
1da177e4 LT |
2729 | } |
2730 | ||
2731 | ||
2732 | /* | |
839cb99e | 2733 | blogic_inthandler handles hardware interrupts from BusLogic Host |
1da177e4 LT |
2734 | Adapters. |
2735 | */ | |
2736 | ||
839cb99e | 2737 | static irqreturn_t blogic_inthandler(int irq_ch, void *devid) |
1da177e4 | 2738 | { |
839cb99e KA |
2739 | struct blogic_adapter *adapter = (struct blogic_adapter *) devid; |
2740 | unsigned long processor_flag; | |
1da177e4 LT |
2741 | /* |
2742 | Acquire exclusive access to Host Adapter. | |
2743 | */ | |
839cb99e | 2744 | spin_lock_irqsave(adapter->scsi_host->host_lock, processor_flag); |
1da177e4 LT |
2745 | /* |
2746 | Handle Interrupts appropriately for each Host Adapter type. | |
2747 | */ | |
839cb99e KA |
2748 | if (blogic_multimaster_type(adapter)) { |
2749 | union blogic_int_reg intreg; | |
1da177e4 LT |
2750 | /* |
2751 | Read the Host Adapter Interrupt Register. | |
2752 | */ | |
839cb99e KA |
2753 | intreg.all = blogic_rdint(adapter); |
2754 | if (intreg.ir.int_valid) { | |
1da177e4 LT |
2755 | /* |
2756 | Acknowledge the interrupt and reset the Host Adapter | |
2757 | Interrupt Register. | |
2758 | */ | |
839cb99e | 2759 | blogic_intreset(adapter); |
1da177e4 | 2760 | /* |
839cb99e KA |
2761 | Process valid External SCSI Bus Reset and Incoming |
2762 | Mailbox Loaded Interrupts. Command Complete | |
2763 | Interrupts are noted, and Outgoing Mailbox Available | |
2764 | Interrupts are ignored, as they are never enabled. | |
1da177e4 | 2765 | */ |
839cb99e KA |
2766 | if (intreg.ir.ext_busreset) |
2767 | adapter->adapter_extreset = true; | |
2768 | else if (intreg.ir.mailin_loaded) | |
2769 | blogic_scan_inbox(adapter); | |
2770 | else if (intreg.ir.cmd_complete) | |
2771 | adapter->adapter_cmd_complete = true; | |
1da177e4 LT |
2772 | } |
2773 | } else { | |
2774 | /* | |
2775 | Check if there is a pending interrupt for this Host Adapter. | |
2776 | */ | |
839cb99e KA |
2777 | if (FlashPoint_InterruptPending(adapter->cardhandle)) |
2778 | switch (FlashPoint_HandleInterrupt(adapter->cardhandle)) { | |
2779 | case FPOINT_NORMAL_INT: | |
1da177e4 | 2780 | break; |
839cb99e KA |
2781 | case FPOINT_EXT_RESET: |
2782 | adapter->adapter_extreset = true; | |
1da177e4 | 2783 | break; |
839cb99e KA |
2784 | case FPOINT_INTERN_ERR: |
2785 | blogic_warn("Internal FlashPoint Error detected - Resetting Host Adapter\n", adapter); | |
2786 | adapter->adapter_intern_err = true; | |
1da177e4 LT |
2787 | break; |
2788 | } | |
2789 | } | |
2790 | /* | |
2791 | Process any completed CCBs. | |
2792 | */ | |
839cb99e KA |
2793 | if (adapter->firstccb != NULL) |
2794 | blogic_process_ccbs(adapter); | |
1da177e4 LT |
2795 | /* |
2796 | Reset the Host Adapter if requested. | |
2797 | */ | |
839cb99e KA |
2798 | if (adapter->adapter_extreset) { |
2799 | blogic_warn("Resetting %s due to External SCSI Bus Reset\n", adapter, adapter->full_model); | |
2800 | blogic_inc_count(&adapter->ext_resets); | |
2801 | blogic_resetadapter(adapter, false); | |
2802 | adapter->adapter_extreset = false; | |
2803 | } else if (adapter->adapter_intern_err) { | |
2804 | blogic_warn("Resetting %s due to Host Adapter Internal Error\n", adapter, adapter->full_model); | |
2805 | blogic_inc_count(&adapter->adapter_intern_errors); | |
2806 | blogic_resetadapter(adapter, true); | |
2807 | adapter->adapter_intern_err = false; | |
1da177e4 LT |
2808 | } |
2809 | /* | |
2810 | Release exclusive access to Host Adapter. | |
2811 | */ | |
839cb99e | 2812 | spin_unlock_irqrestore(adapter->scsi_host->host_lock, processor_flag); |
1da177e4 LT |
2813 | return IRQ_HANDLED; |
2814 | } | |
2815 | ||
2816 | ||
2817 | /* | |
839cb99e | 2818 | blogic_write_outbox places CCB and Action Code into an Outgoing |
1da177e4 LT |
2819 | Mailbox for execution by Host Adapter. The Host Adapter's Lock should |
2820 | already have been acquired by the caller. | |
2821 | */ | |
2822 | ||
839cb99e KA |
2823 | static bool blogic_write_outbox(struct blogic_adapter *adapter, |
2824 | enum blogic_action action, struct blogic_ccb *ccb) | |
1da177e4 | 2825 | { |
839cb99e KA |
2826 | struct blogic_outbox *next_outbox; |
2827 | ||
2828 | next_outbox = adapter->next_outbox; | |
2829 | if (next_outbox->action == BLOGIC_OUTBOX_FREE) { | |
2830 | ccb->status = BLOGIC_CCB_ACTIVE; | |
1da177e4 | 2831 | /* |
839cb99e KA |
2832 | The CCB field must be written before the Action Code field |
2833 | since the Host Adapter is operating asynchronously and the | |
2834 | locking code does not protect against simultaneous access | |
2835 | by the Host Adapter. | |
1da177e4 | 2836 | */ |
839cb99e KA |
2837 | next_outbox->ccb = ccb->dma_handle; |
2838 | next_outbox->action = action; | |
2839 | blogic_execmbox(adapter); | |
2840 | if (++next_outbox > adapter->last_outbox) | |
2841 | next_outbox = adapter->first_outbox; | |
2842 | adapter->next_outbox = next_outbox; | |
2843 | if (action == BLOGIC_MBOX_START) { | |
2844 | adapter->active_cmds[ccb->tgt_id]++; | |
2845 | if (ccb->opcode != BLOGIC_BDR) | |
2846 | adapter->tgt_stats[ccb->tgt_id].cmds_tried++; | |
1da177e4 LT |
2847 | } |
2848 | return true; | |
2849 | } | |
2850 | return false; | |
2851 | } | |
2852 | ||
2853 | /* Error Handling (EH) support */ | |
2854 | ||
839cb99e | 2855 | static int blogic_hostreset(struct scsi_cmnd *SCpnt) |
1da177e4 | 2856 | { |
839cb99e KA |
2857 | struct blogic_adapter *adapter = |
2858 | (struct blogic_adapter *) SCpnt->device->host->hostdata; | |
1da177e4 LT |
2859 | |
2860 | unsigned int id = SCpnt->device->id; | |
839cb99e | 2861 | struct blogic_tgt_stats *stats = &adapter->tgt_stats[id]; |
df0ae249 JG |
2862 | int rc; |
2863 | ||
2864 | spin_lock_irq(SCpnt->device->host->host_lock); | |
2865 | ||
20961065 | 2866 | blogic_inc_count(&stats->adapter_reset_req); |
1da177e4 | 2867 | |
839cb99e | 2868 | rc = blogic_resetadapter(adapter, false); |
df0ae249 JG |
2869 | spin_unlock_irq(SCpnt->device->host->host_lock); |
2870 | return rc; | |
1da177e4 LT |
2871 | } |
2872 | ||
2873 | /* | |
839cb99e | 2874 | blogic_qcmd creates a CCB for Command and places it into an |
1da177e4 LT |
2875 | Outgoing Mailbox for execution by the associated Host Adapter. |
2876 | */ | |
2877 | ||
af049dfd | 2878 | static int blogic_qcmd_lck(struct scsi_cmnd *command) |
1da177e4 | 2879 | { |
af049dfd | 2880 | void (*comp_cb)(struct scsi_cmnd *) = scsi_done; |
839cb99e KA |
2881 | struct blogic_adapter *adapter = |
2882 | (struct blogic_adapter *) command->device->host->hostdata; | |
2883 | struct blogic_tgt_flags *tgt_flags = | |
2884 | &adapter->tgt_flags[command->device->id]; | |
2885 | struct blogic_tgt_stats *tgt_stats = adapter->tgt_stats; | |
2886 | unsigned char *cdb = command->cmnd; | |
2887 | int cdblen = command->cmd_len; | |
2888 | int tgt_id = command->device->id; | |
2889 | int lun = command->device->lun; | |
2890 | int buflen = scsi_bufflen(command); | |
2891 | int count; | |
2892 | struct blogic_ccb *ccb; | |
eeceec90 | 2893 | dma_addr_t sense_buf; |
839cb99e KA |
2894 | |
2895 | /* | |
2896 | SCSI REQUEST_SENSE commands will be executed automatically by the | |
2897 | Host Adapter for any errors, so they should not be executed | |
2898 | explicitly unless the Sense Data is zero indicating that no error | |
2899 | occurred. | |
2900 | */ | |
2901 | if (cdb[0] == REQUEST_SENSE && command->sense_buffer[0] != 0) { | |
2902 | command->result = DID_OK << 16; | |
2903 | comp_cb(command); | |
1da177e4 LT |
2904 | return 0; |
2905 | } | |
2906 | /* | |
839cb99e KA |
2907 | Allocate a CCB from the Host Adapter's free list. In the unlikely |
2908 | event that there are none available and memory allocation fails, | |
2909 | wait 1 second and try again. If that fails, the Host Adapter is | |
2910 | probably hung so signal an error as a Host Adapter Hard Reset | |
2911 | should be initiated soon. | |
2912 | */ | |
2913 | ccb = blogic_alloc_ccb(adapter); | |
2914 | if (ccb == NULL) { | |
2915 | spin_unlock_irq(adapter->scsi_host->host_lock); | |
2916 | blogic_delay(1); | |
2917 | spin_lock_irq(adapter->scsi_host->host_lock); | |
2918 | ccb = blogic_alloc_ccb(adapter); | |
2919 | if (ccb == NULL) { | |
2920 | command->result = DID_ERROR << 16; | |
2921 | comp_cb(command); | |
1da177e4 LT |
2922 | return 0; |
2923 | } | |
2924 | } | |
ddc914c7 | 2925 | |
1da177e4 LT |
2926 | /* |
2927 | Initialize the fields in the BusLogic Command Control Block (CCB). | |
2928 | */ | |
839cb99e KA |
2929 | count = scsi_dma_map(command); |
2930 | BUG_ON(count < 0); | |
2931 | if (count) { | |
ddc914c7 FT |
2932 | struct scatterlist *sg; |
2933 | int i; | |
2934 | ||
839cb99e KA |
2935 | ccb->opcode = BLOGIC_INITIATOR_CCB_SG; |
2936 | ccb->datalen = count * sizeof(struct blogic_sg_seg); | |
2937 | if (blogic_multimaster_type(adapter)) | |
56f39614 | 2938 | ccb->data = (unsigned int) ccb->dma_handle + |
839cb99e | 2939 | ((unsigned long) &ccb->sglist - |
56f39614 | 2940 | (unsigned long) ccb); |
1da177e4 | 2941 | else |
56f39614 | 2942 | ccb->data = virt_to_32bit_virt(ccb->sglist); |
ddc914c7 | 2943 | |
839cb99e KA |
2944 | scsi_for_each_sg(command, sg, count, i) { |
2945 | ccb->sglist[i].segbytes = sg_dma_len(sg); | |
2946 | ccb->sglist[i].segdata = sg_dma_address(sg); | |
1da177e4 | 2947 | } |
839cb99e KA |
2948 | } else if (!count) { |
2949 | ccb->opcode = BLOGIC_INITIATOR_CCB; | |
2950 | ccb->datalen = buflen; | |
2951 | ccb->data = 0; | |
1da177e4 | 2952 | } |
ddc914c7 | 2953 | |
839cb99e | 2954 | switch (cdb[0]) { |
1da177e4 LT |
2955 | case READ_6: |
2956 | case READ_10: | |
839cb99e KA |
2957 | ccb->datadir = BLOGIC_DATAIN_CHECKED; |
2958 | tgt_stats[tgt_id].read_cmds++; | |
2959 | blogic_addcount(&tgt_stats[tgt_id].bytesread, buflen); | |
2960 | blogic_incszbucket(tgt_stats[tgt_id].read_sz_buckets, buflen); | |
1da177e4 LT |
2961 | break; |
2962 | case WRITE_6: | |
2963 | case WRITE_10: | |
839cb99e KA |
2964 | ccb->datadir = BLOGIC_DATAOUT_CHECKED; |
2965 | tgt_stats[tgt_id].write_cmds++; | |
2966 | blogic_addcount(&tgt_stats[tgt_id].byteswritten, buflen); | |
2967 | blogic_incszbucket(tgt_stats[tgt_id].write_sz_buckets, buflen); | |
1da177e4 LT |
2968 | break; |
2969 | default: | |
839cb99e | 2970 | ccb->datadir = BLOGIC_UNCHECKED_TX; |
1da177e4 LT |
2971 | break; |
2972 | } | |
839cb99e KA |
2973 | ccb->cdblen = cdblen; |
2974 | ccb->adapter_status = 0; | |
2975 | ccb->tgt_status = 0; | |
2976 | ccb->tgt_id = tgt_id; | |
2977 | ccb->lun = lun; | |
2978 | ccb->tag_enable = false; | |
2979 | ccb->legacytag_enable = false; | |
2980 | /* | |
2981 | BusLogic recommends that after a Reset the first couple of | |
2982 | commands that are sent to a Target Device be sent in a non | |
2983 | Tagged Queue fashion so that the Host Adapter and Target Device | |
2984 | can establish Synchronous and Wide Transfer before Queue Tag | |
2985 | messages can interfere with the Synchronous and Wide Negotiation | |
2986 | messages. By waiting to enable Tagged Queuing until after the | |
2987 | first BLOGIC_MAX_TAG_DEPTH commands have been queued, it is | |
2988 | assured that after a Reset any pending commands are requeued | |
2989 | before Tagged Queuing is enabled and that the Tagged Queuing | |
2990 | message will not occur while the partition table is being printed. | |
2991 | In addition, some devices do not properly handle the transition | |
2992 | from non-tagged to tagged commands, so it is necessary to wait | |
2993 | until there are no pending commands for a target device | |
1da177e4 LT |
2994 | before queuing tagged commands. |
2995 | */ | |
839cb99e KA |
2996 | if (adapter->cmds_since_rst[tgt_id]++ >= BLOGIC_MAX_TAG_DEPTH && |
2997 | !tgt_flags->tagq_active && | |
2998 | adapter->active_cmds[tgt_id] == 0 | |
2999 | && tgt_flags->tagq_ok && | |
3000 | (adapter->tagq_ok & (1 << tgt_id))) { | |
3001 | tgt_flags->tagq_active = true; | |
3002 | blogic_notice("Tagged Queuing now active for Target %d\n", | |
3003 | adapter, tgt_id); | |
3004 | } | |
3005 | if (tgt_flags->tagq_active) { | |
3006 | enum blogic_queuetag queuetag = BLOGIC_SIMPLETAG; | |
1da177e4 | 3007 | /* |
839cb99e KA |
3008 | When using Tagged Queuing with Simple Queue Tags, it |
3009 | appears that disk drive controllers do not guarantee that | |
3010 | a queued command will not remain in a disconnected state | |
3011 | indefinitely if commands that read or write nearer the | |
3012 | head position continue to arrive without interruption. | |
3013 | Therefore, for each Target Device this driver keeps track | |
3014 | of the last time either the queue was empty or an Ordered | |
3015 | Queue Tag was issued. If more than 4 seconds (one fifth | |
3016 | of the 20 second disk timeout) have elapsed since this | |
3017 | last sequence point, this command will be issued with an | |
3018 | Ordered Queue Tag rather than a Simple Queue Tag, which | |
3019 | forces the Target Device to complete all previously | |
3020 | queued commands before this command may be executed. | |
1da177e4 | 3021 | */ |
839cb99e KA |
3022 | if (adapter->active_cmds[tgt_id] == 0) |
3023 | adapter->last_seqpoint[tgt_id] = jiffies; | |
3024 | else if (time_after(jiffies, | |
3025 | adapter->last_seqpoint[tgt_id] + 4 * HZ)) { | |
3026 | adapter->last_seqpoint[tgt_id] = jiffies; | |
3027 | queuetag = BLOGIC_ORDEREDTAG; | |
1da177e4 | 3028 | } |
839cb99e KA |
3029 | if (adapter->ext_lun) { |
3030 | ccb->tag_enable = true; | |
3031 | ccb->queuetag = queuetag; | |
1da177e4 | 3032 | } else { |
839cb99e KA |
3033 | ccb->legacytag_enable = true; |
3034 | ccb->legacy_tag = queuetag; | |
1da177e4 LT |
3035 | } |
3036 | } | |
839cb99e KA |
3037 | memcpy(ccb->cdb, cdb, cdblen); |
3038 | ccb->sense_datalen = SCSI_SENSE_BUFFERSIZE; | |
eeceec90 | 3039 | ccb->command = command; |
17a361b2 | 3040 | sense_buf = dma_map_single(&adapter->pci_device->dev, |
839cb99e | 3041 | command->sense_buffer, ccb->sense_datalen, |
17a361b2 | 3042 | DMA_FROM_DEVICE); |
eeceec90 KA |
3043 | if (dma_mapping_error(&adapter->pci_device->dev, sense_buf)) { |
3044 | blogic_err("DMA mapping for sense data buffer failed\n", | |
3045 | adapter); | |
3046 | blogic_dealloc_ccb(ccb, 0); | |
3047 | return SCSI_MLQUEUE_HOST_BUSY; | |
3048 | } | |
3049 | ccb->sensedata = sense_buf; | |
839cb99e | 3050 | if (blogic_multimaster_type(adapter)) { |
1da177e4 | 3051 | /* |
839cb99e KA |
3052 | Place the CCB in an Outgoing Mailbox. The higher levels |
3053 | of the SCSI Subsystem should not attempt to queue more | |
3054 | commands than can be placed in Outgoing Mailboxes, so | |
3055 | there should always be one free. In the unlikely event | |
3056 | that there are none available, wait 1 second and try | |
3057 | again. If that fails, the Host Adapter is probably hung | |
3058 | so signal an error as a Host Adapter Hard Reset should | |
3059 | be initiated soon. | |
1da177e4 | 3060 | */ |
839cb99e KA |
3061 | if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START, ccb)) { |
3062 | spin_unlock_irq(adapter->scsi_host->host_lock); | |
43622697 | 3063 | blogic_warn("Unable to write Outgoing Mailbox - Pausing for 1 second\n", adapter); |
839cb99e KA |
3064 | blogic_delay(1); |
3065 | spin_lock_irq(adapter->scsi_host->host_lock); | |
3066 | if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START, | |
3067 | ccb)) { | |
43622697 | 3068 | blogic_warn("Still unable to write Outgoing Mailbox - Host Adapter Dead?\n", adapter); |
eeceec90 | 3069 | blogic_dealloc_ccb(ccb, 1); |
839cb99e | 3070 | command->result = DID_ERROR << 16; |
0800a26a | 3071 | scsi_done(command); |
1da177e4 LT |
3072 | } |
3073 | } | |
3074 | } else { | |
3075 | /* | |
839cb99e KA |
3076 | Call the FlashPoint SCCB Manager to start execution of |
3077 | the CCB. | |
1da177e4 | 3078 | */ |
839cb99e KA |
3079 | ccb->status = BLOGIC_CCB_ACTIVE; |
3080 | adapter->active_cmds[tgt_id]++; | |
3081 | tgt_stats[tgt_id].cmds_tried++; | |
3082 | FlashPoint_StartCCB(adapter->cardhandle, ccb); | |
1da177e4 | 3083 | /* |
839cb99e KA |
3084 | The Command may have already completed and |
3085 | blogic_qcompleted_ccb been called, or it may still be | |
3086 | pending. | |
1da177e4 | 3087 | */ |
839cb99e KA |
3088 | if (ccb->status == BLOGIC_CCB_COMPLETE) |
3089 | blogic_process_ccbs(adapter); | |
1da177e4 LT |
3090 | } |
3091 | return 0; | |
3092 | } | |
3093 | ||
839cb99e | 3094 | static DEF_SCSI_QCMD(blogic_qcmd) |
1da177e4 | 3095 | |
d2afb3ae | 3096 | #if 0 |
1da177e4 | 3097 | /* |
839cb99e | 3098 | blogic_abort aborts Command if possible. |
1da177e4 LT |
3099 | */ |
3100 | ||
839cb99e | 3101 | static int blogic_abort(struct scsi_cmnd *command) |
1da177e4 | 3102 | { |
839cb99e KA |
3103 | struct blogic_adapter *adapter = |
3104 | (struct blogic_adapter *) command->device->host->hostdata; | |
3105 | ||
3106 | int tgt_id = command->device->id; | |
3107 | struct blogic_ccb *ccb; | |
3108 | blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_request); | |
1da177e4 | 3109 | |
1da177e4 | 3110 | /* |
839cb99e KA |
3111 | Attempt to find an Active CCB for this Command. If no Active |
3112 | CCB for this Command is found, then no Abort is necessary. | |
1da177e4 | 3113 | */ |
839cb99e KA |
3114 | for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all) |
3115 | if (ccb->command == command) | |
1da177e4 | 3116 | break; |
839cb99e KA |
3117 | if (ccb == NULL) { |
3118 | blogic_warn("Unable to Abort Command to Target %d - No CCB Found\n", adapter, tgt_id); | |
1da177e4 | 3119 | return SUCCESS; |
839cb99e KA |
3120 | } else if (ccb->status == BLOGIC_CCB_COMPLETE) { |
3121 | blogic_warn("Unable to Abort Command to Target %d - CCB Completed\n", adapter, tgt_id); | |
1da177e4 | 3122 | return SUCCESS; |
839cb99e KA |
3123 | } else if (ccb->status == BLOGIC_CCB_RESET) { |
3124 | blogic_warn("Unable to Abort Command to Target %d - CCB Reset\n", adapter, tgt_id); | |
1da177e4 LT |
3125 | return SUCCESS; |
3126 | } | |
839cb99e | 3127 | if (blogic_multimaster_type(adapter)) { |
1da177e4 | 3128 | /* |
839cb99e KA |
3129 | Attempt to Abort this CCB. MultiMaster Firmware versions |
3130 | prior to 5.xx do not generate Abort Tag messages, but only | |
3131 | generate the non-tagged Abort message. Since non-tagged | |
3132 | commands are not sent by the Host Adapter until the queue | |
3133 | of outstanding tagged commands has completed, and the | |
3134 | Abort message is treated as a non-tagged command, it is | |
3135 | effectively impossible to abort commands when Tagged | |
3136 | Queuing is active. Firmware version 5.xx does generate | |
3137 | Abort Tag messages, so it is possible to abort commands | |
3138 | when Tagged Queuing is active. | |
1da177e4 | 3139 | */ |
839cb99e KA |
3140 | if (adapter->tgt_flags[tgt_id].tagq_active && |
3141 | adapter->fw_ver[0] < '5') { | |
3142 | blogic_warn("Unable to Abort CCB #%ld to Target %d - Abort Tag Not Supported\n", adapter, ccb->serial, tgt_id); | |
1da177e4 | 3143 | return FAILURE; |
839cb99e KA |
3144 | } else if (blogic_write_outbox(adapter, BLOGIC_MBOX_ABORT, |
3145 | ccb)) { | |
3146 | blogic_warn("Aborting CCB #%ld to Target %d\n", | |
3147 | adapter, ccb->serial, tgt_id); | |
3148 | blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried); | |
1da177e4 LT |
3149 | return SUCCESS; |
3150 | } else { | |
839cb99e | 3151 | blogic_warn("Unable to Abort CCB #%ld to Target %d - No Outgoing Mailboxes\n", adapter, ccb->serial, tgt_id); |
1da177e4 LT |
3152 | return FAILURE; |
3153 | } | |
3154 | } else { | |
3155 | /* | |
839cb99e KA |
3156 | Call the FlashPoint SCCB Manager to abort execution of |
3157 | the CCB. | |
1da177e4 | 3158 | */ |
839cb99e KA |
3159 | blogic_warn("Aborting CCB #%ld to Target %d\n", adapter, |
3160 | ccb->serial, tgt_id); | |
3161 | blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried); | |
3162 | FlashPoint_AbortCCB(adapter->cardhandle, ccb); | |
1da177e4 LT |
3163 | /* |
3164 | The Abort may have already been completed and | |
839cb99e | 3165 | blogic_qcompleted_ccb been called, or it |
1da177e4 LT |
3166 | may still be pending. |
3167 | */ | |
839cb99e KA |
3168 | if (ccb->status == BLOGIC_CCB_COMPLETE) |
3169 | blogic_process_ccbs(adapter); | |
1da177e4 LT |
3170 | return SUCCESS; |
3171 | } | |
3172 | return SUCCESS; | |
3173 | } | |
3174 | ||
d2afb3ae | 3175 | #endif |
1da177e4 | 3176 | /* |
839cb99e | 3177 | blogic_resetadapter resets Host Adapter if possible, marking all |
1da177e4 LT |
3178 | currently executing SCSI Commands as having been Reset. |
3179 | */ | |
3180 | ||
839cb99e | 3181 | static int blogic_resetadapter(struct blogic_adapter *adapter, bool hard_reset) |
1da177e4 | 3182 | { |
839cb99e KA |
3183 | struct blogic_ccb *ccb; |
3184 | int tgt_id; | |
1da177e4 LT |
3185 | |
3186 | /* | |
3187 | * Attempt to Reset and Reinitialize the Host Adapter. | |
3188 | */ | |
3189 | ||
839cb99e KA |
3190 | if (!(blogic_hwreset(adapter, hard_reset) && |
3191 | blogic_initadapter(adapter))) { | |
3192 | blogic_err("Resetting %s Failed\n", adapter, | |
3193 | adapter->full_model); | |
1da177e4 LT |
3194 | return FAILURE; |
3195 | } | |
3196 | ||
3197 | /* | |
3198 | * Deallocate all currently executing CCBs. | |
3199 | */ | |
3200 | ||
839cb99e KA |
3201 | for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all) |
3202 | if (ccb->status == BLOGIC_CCB_ACTIVE) | |
eeceec90 | 3203 | blogic_dealloc_ccb(ccb, 1); |
1da177e4 LT |
3204 | /* |
3205 | * Wait a few seconds between the Host Adapter Hard Reset which | |
3206 | * initiates a SCSI Bus Reset and issuing any SCSI Commands. Some | |
3207 | * SCSI devices get confused if they receive SCSI Commands too soon | |
3208 | * after a SCSI Bus Reset. | |
3209 | */ | |
3210 | ||
839cb99e KA |
3211 | if (hard_reset) { |
3212 | spin_unlock_irq(adapter->scsi_host->host_lock); | |
3213 | blogic_delay(adapter->bus_settle_time); | |
3214 | spin_lock_irq(adapter->scsi_host->host_lock); | |
1da177e4 LT |
3215 | } |
3216 | ||
839cb99e KA |
3217 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) { |
3218 | adapter->last_resettried[tgt_id] = jiffies; | |
3219 | adapter->last_resetdone[tgt_id] = jiffies; | |
1da177e4 LT |
3220 | } |
3221 | return SUCCESS; | |
3222 | } | |
3223 | ||
3224 | /* | |
839cb99e | 3225 | blogic_diskparam returns the Heads/Sectors/Cylinders BIOS Disk |
1da177e4 LT |
3226 | Parameters for Disk. The default disk geometry is 64 heads, 32 sectors, and |
3227 | the appropriate number of cylinders so as not to exceed drive capacity. In | |
3228 | order for disks equal to or larger than 1 GB to be addressable by the BIOS | |
3229 | without exceeding the BIOS limitation of 1024 cylinders, Extended Translation | |
3230 | may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C" | |
3231 | series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A" | |
3232 | series MultiMaster Host Adapters. With Extended Translation enabled, drives | |
3233 | between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128 | |
3234 | heads and 32 sectors, and drives above 2 GB inclusive are given a disk | |
3235 | geometry of 255 heads and 63 sectors. However, if the BIOS detects that the | |
3236 | Extended Translation setting does not match the geometry in the partition | |
3237 | table, then the translation inferred from the partition table will be used by | |
3238 | the BIOS, and a warning may be displayed. | |
3239 | */ | |
3240 | ||
839cb99e KA |
3241 | static int blogic_diskparam(struct scsi_device *sdev, struct block_device *dev, |
3242 | sector_t capacity, int *params) | |
1da177e4 | 3243 | { |
839cb99e KA |
3244 | struct blogic_adapter *adapter = |
3245 | (struct blogic_adapter *) sdev->host->hostdata; | |
3246 | struct bios_diskparam *diskparam = (struct bios_diskparam *) params; | |
1da177e4 | 3247 | unsigned char *buf; |
839cb99e KA |
3248 | |
3249 | if (adapter->ext_trans_enable && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */) { | |
3250 | if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */) { | |
3251 | diskparam->heads = 255; | |
3252 | diskparam->sectors = 63; | |
1da177e4 | 3253 | } else { |
839cb99e KA |
3254 | diskparam->heads = 128; |
3255 | diskparam->sectors = 32; | |
1da177e4 LT |
3256 | } |
3257 | } else { | |
839cb99e KA |
3258 | diskparam->heads = 64; |
3259 | diskparam->sectors = 32; | |
1da177e4 | 3260 | } |
839cb99e KA |
3261 | diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors); |
3262 | buf = scsi_bios_ptable(dev); | |
1da177e4 LT |
3263 | if (buf == NULL) |
3264 | return 0; | |
3265 | /* | |
839cb99e KA |
3266 | If the boot sector partition table flag is valid, search for |
3267 | a partition table entry whose end_head matches one of the | |
3268 | standard BusLogic geometry translations (64/32, 128/32, or 255/63). | |
1da177e4 | 3269 | */ |
1442f76d CH |
3270 | if (*(unsigned short *) (buf + 64) == MSDOS_LABEL_MAGIC) { |
3271 | struct msdos_partition *part1_entry = | |
3272 | (struct msdos_partition *)buf; | |
3273 | struct msdos_partition *part_entry = part1_entry; | |
839cb99e KA |
3274 | int saved_cyl = diskparam->cylinders, part_no; |
3275 | unsigned char part_end_head = 0, part_end_sector = 0; | |
3276 | ||
3277 | for (part_no = 0; part_no < 4; part_no++) { | |
3278 | part_end_head = part_entry->end_head; | |
3279 | part_end_sector = part_entry->end_sector & 0x3F; | |
3280 | if (part_end_head == 64 - 1) { | |
3281 | diskparam->heads = 64; | |
3282 | diskparam->sectors = 32; | |
1da177e4 | 3283 | break; |
839cb99e KA |
3284 | } else if (part_end_head == 128 - 1) { |
3285 | diskparam->heads = 128; | |
3286 | diskparam->sectors = 32; | |
1da177e4 | 3287 | break; |
839cb99e KA |
3288 | } else if (part_end_head == 255 - 1) { |
3289 | diskparam->heads = 255; | |
3290 | diskparam->sectors = 63; | |
1da177e4 LT |
3291 | break; |
3292 | } | |
839cb99e | 3293 | part_entry++; |
1da177e4 | 3294 | } |
839cb99e KA |
3295 | if (part_no == 4) { |
3296 | part_end_head = part1_entry->end_head; | |
3297 | part_end_sector = part1_entry->end_sector & 0x3F; | |
1da177e4 | 3298 | } |
839cb99e KA |
3299 | diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors); |
3300 | if (part_no < 4 && part_end_sector == diskparam->sectors) { | |
3301 | if (diskparam->cylinders != saved_cyl) | |
3302 | blogic_warn("Adopting Geometry %d/%d from Partition Table\n", adapter, diskparam->heads, diskparam->sectors); | |
3303 | } else if (part_end_head > 0 || part_end_sector > 0) { | |
43622697 CIK |
3304 | blogic_warn("Warning: Partition Table appears to have Geometry %d/%d which is\n", adapter, part_end_head + 1, part_end_sector); |
3305 | blogic_warn("not compatible with current BusLogic Host Adapter Geometry %d/%d\n", adapter, diskparam->heads, diskparam->sectors); | |
1da177e4 LT |
3306 | } |
3307 | } | |
3308 | kfree(buf); | |
3309 | return 0; | |
3310 | } | |
3311 | ||
3312 | ||
3313 | /* | |
3314 | BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>. | |
3315 | */ | |
3316 | ||
839cb99e KA |
3317 | static int blogic_write_info(struct Scsi_Host *shost, char *procbuf, |
3318 | int bytes_avail) | |
1da177e4 | 3319 | { |
839cb99e KA |
3320 | struct blogic_adapter *adapter = |
3321 | (struct blogic_adapter *) shost->hostdata; | |
3322 | struct blogic_tgt_stats *tgt_stats; | |
3323 | ||
3324 | tgt_stats = adapter->tgt_stats; | |
3325 | adapter->ext_resets = 0; | |
3326 | adapter->adapter_intern_errors = 0; | |
3327 | memset(tgt_stats, 0, BLOGIC_MAXDEV * sizeof(struct blogic_tgt_stats)); | |
25daa96f AV |
3328 | return 0; |
3329 | } | |
3330 | ||
839cb99e | 3331 | static int blogic_show_info(struct seq_file *m, struct Scsi_Host *shost) |
25daa96f | 3332 | { |
839cb99e KA |
3333 | struct blogic_adapter *adapter = (struct blogic_adapter *) shost->hostdata; |
3334 | struct blogic_tgt_stats *tgt_stats; | |
3335 | int tgt; | |
25daa96f | 3336 | |
839cb99e KA |
3337 | tgt_stats = adapter->tgt_stats; |
3338 | seq_write(m, adapter->msgbuf, adapter->msgbuflen); | |
25daa96f | 3339 | seq_printf(m, "\n\ |
1da177e4 | 3340 | Current Driver Queue Depth: %d\n\ |
839cb99e | 3341 | Currently Allocated CCBs: %d\n", adapter->drvr_qdepth, adapter->alloc_ccbs); |
91c40f24 | 3342 | seq_puts(m, "\n\n\ |
1da177e4 LT |
3343 | DATA TRANSFER STATISTICS\n\ |
3344 | \n\ | |
3345 | Target Tagged Queuing Queue Depth Active Attempted Completed\n\ | |
3346 | ====== ============== =========== ====== ========= =========\n"); | |
839cb99e KA |
3347 | for (tgt = 0; tgt < adapter->maxdev; tgt++) { |
3348 | struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt]; | |
3349 | if (!tgt_flags->tgt_exists) | |
1da177e4 | 3350 | continue; |
839cb99e | 3351 | seq_printf(m, " %2d %s", tgt, (tgt_flags->tagq_ok ? (tgt_flags->tagq_active ? " Active" : (adapter->tagq_ok & (1 << tgt) |
1da177e4 LT |
3352 | ? " Permitted" : " Disabled")) |
3353 | : "Not Supported")); | |
25daa96f | 3354 | seq_printf(m, |
839cb99e | 3355 | " %3d %3u %9u %9u\n", adapter->qdepth[tgt], adapter->active_cmds[tgt], tgt_stats[tgt].cmds_tried, tgt_stats[tgt].cmds_complete); |
1da177e4 | 3356 | } |
91c40f24 | 3357 | seq_puts(m, "\n\ |
1da177e4 LT |
3358 | Target Read Commands Write Commands Total Bytes Read Total Bytes Written\n\ |
3359 | ====== ============= ============== =================== ===================\n"); | |
839cb99e KA |
3360 | for (tgt = 0; tgt < adapter->maxdev; tgt++) { |
3361 | struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt]; | |
3362 | if (!tgt_flags->tgt_exists) | |
1da177e4 | 3363 | continue; |
839cb99e KA |
3364 | seq_printf(m, " %2d %9u %9u", tgt, tgt_stats[tgt].read_cmds, tgt_stats[tgt].write_cmds); |
3365 | if (tgt_stats[tgt].bytesread.billions > 0) | |
3366 | seq_printf(m, " %9u%09u", tgt_stats[tgt].bytesread.billions, tgt_stats[tgt].bytesread.units); | |
1da177e4 | 3367 | else |
839cb99e KA |
3368 | seq_printf(m, " %9u", tgt_stats[tgt].bytesread.units); |
3369 | if (tgt_stats[tgt].byteswritten.billions > 0) | |
3370 | seq_printf(m, " %9u%09u\n", tgt_stats[tgt].byteswritten.billions, tgt_stats[tgt].byteswritten.units); | |
1da177e4 | 3371 | else |
839cb99e | 3372 | seq_printf(m, " %9u\n", tgt_stats[tgt].byteswritten.units); |
1da177e4 | 3373 | } |
91c40f24 | 3374 | seq_puts(m, "\n\ |
1da177e4 LT |
3375 | Target Command 0-1KB 1-2KB 2-4KB 4-8KB 8-16KB\n\ |
3376 | ====== ======= ========= ========= ========= ========= =========\n"); | |
839cb99e KA |
3377 | for (tgt = 0; tgt < adapter->maxdev; tgt++) { |
3378 | struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt]; | |
3379 | if (!tgt_flags->tgt_exists) | |
1da177e4 | 3380 | continue; |
25daa96f | 3381 | seq_printf(m, |
839cb99e KA |
3382 | " %2d Read %9u %9u %9u %9u %9u\n", tgt, |
3383 | tgt_stats[tgt].read_sz_buckets[0], | |
3384 | tgt_stats[tgt].read_sz_buckets[1], tgt_stats[tgt].read_sz_buckets[2], tgt_stats[tgt].read_sz_buckets[3], tgt_stats[tgt].read_sz_buckets[4]); | |
25daa96f | 3385 | seq_printf(m, |
839cb99e KA |
3386 | " %2d Write %9u %9u %9u %9u %9u\n", tgt, |
3387 | tgt_stats[tgt].write_sz_buckets[0], | |
3388 | tgt_stats[tgt].write_sz_buckets[1], tgt_stats[tgt].write_sz_buckets[2], tgt_stats[tgt].write_sz_buckets[3], tgt_stats[tgt].write_sz_buckets[4]); | |
1da177e4 | 3389 | } |
91c40f24 | 3390 | seq_puts(m, "\n\ |
1da177e4 LT |
3391 | Target Command 16-32KB 32-64KB 64-128KB 128-256KB 256KB+\n\ |
3392 | ====== ======= ========= ========= ========= ========= =========\n"); | |
839cb99e KA |
3393 | for (tgt = 0; tgt < adapter->maxdev; tgt++) { |
3394 | struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt]; | |
3395 | if (!tgt_flags->tgt_exists) | |
1da177e4 | 3396 | continue; |
25daa96f | 3397 | seq_printf(m, |
839cb99e KA |
3398 | " %2d Read %9u %9u %9u %9u %9u\n", tgt, |
3399 | tgt_stats[tgt].read_sz_buckets[5], | |
3400 | tgt_stats[tgt].read_sz_buckets[6], tgt_stats[tgt].read_sz_buckets[7], tgt_stats[tgt].read_sz_buckets[8], tgt_stats[tgt].read_sz_buckets[9]); | |
25daa96f | 3401 | seq_printf(m, |
839cb99e KA |
3402 | " %2d Write %9u %9u %9u %9u %9u\n", tgt, |
3403 | tgt_stats[tgt].write_sz_buckets[5], | |
3404 | tgt_stats[tgt].write_sz_buckets[6], tgt_stats[tgt].write_sz_buckets[7], tgt_stats[tgt].write_sz_buckets[8], tgt_stats[tgt].write_sz_buckets[9]); | |
1da177e4 | 3405 | } |
91c40f24 | 3406 | seq_puts(m, "\n\n\ |
1da177e4 LT |
3407 | ERROR RECOVERY STATISTICS\n\ |
3408 | \n\ | |
3409 | Command Aborts Bus Device Resets Host Adapter Resets\n\ | |
3410 | Target Requested Completed Requested Completed Requested Completed\n\ | |
3411 | ID \\\\\\\\ Attempted //// \\\\\\\\ Attempted //// \\\\\\\\ Attempted ////\n\ | |
3412 | ====== ===== ===== ===== ===== ===== ===== ===== ===== =====\n"); | |
839cb99e KA |
3413 | for (tgt = 0; tgt < adapter->maxdev; tgt++) { |
3414 | struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt]; | |
3415 | if (!tgt_flags->tgt_exists) | |
1da177e4 | 3416 | continue; |
20961065 CIK |
3417 | seq_printf(m, " %2d %5d %5d %5d %5d %5d %5d %5d %5d %5d\n", |
3418 | tgt, tgt_stats[tgt].aborts_request, | |
3419 | tgt_stats[tgt].aborts_tried, | |
3420 | tgt_stats[tgt].aborts_done, | |
3421 | tgt_stats[tgt].bdr_request, | |
3422 | tgt_stats[tgt].bdr_tried, | |
3423 | tgt_stats[tgt].bdr_done, | |
3424 | tgt_stats[tgt].adapter_reset_req, | |
3425 | tgt_stats[tgt].adapter_reset_attempt, | |
3426 | tgt_stats[tgt].adapter_reset_done); | |
1da177e4 | 3427 | } |
839cb99e KA |
3428 | seq_printf(m, "\nExternal Host Adapter Resets: %d\n", adapter->ext_resets); |
3429 | seq_printf(m, "Host Adapter Internal Errors: %d\n", adapter->adapter_intern_errors); | |
25daa96f | 3430 | return 0; |
1da177e4 LT |
3431 | } |
3432 | ||
3433 | ||
3434 | /* | |
839cb99e | 3435 | blogic_msg prints Driver Messages. |
1da177e4 | 3436 | */ |
5c9e2596 | 3437 | __printf(2, 4) |
839cb99e KA |
3438 | static void blogic_msg(enum blogic_msglevel msglevel, char *fmt, |
3439 | struct blogic_adapter *adapter, ...) | |
1da177e4 | 3440 | { |
839cb99e KA |
3441 | static char buf[BLOGIC_LINEBUF_SIZE]; |
3442 | static bool begin = true; | |
3443 | va_list args; | |
3444 | int len = 0; | |
3445 | ||
3446 | va_start(args, adapter); | |
a40662c9 | 3447 | len = vscnprintf(buf, sizeof(buf), fmt, args); |
839cb99e KA |
3448 | va_end(args); |
3449 | if (msglevel == BLOGIC_ANNOUNCE_LEVEL) { | |
3450 | static int msglines = 0; | |
3451 | strcpy(&adapter->msgbuf[adapter->msgbuflen], buf); | |
3452 | adapter->msgbuflen += len; | |
3453 | if (++msglines <= 2) | |
3454 | printk("%sscsi: %s", blogic_msglevelmap[msglevel], buf); | |
3455 | } else if (msglevel == BLOGIC_INFO_LEVEL) { | |
3456 | strcpy(&adapter->msgbuf[adapter->msgbuflen], buf); | |
3457 | adapter->msgbuflen += len; | |
3458 | if (begin) { | |
3459 | if (buf[0] != '\n' || len > 1) | |
3460 | printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf); | |
1da177e4 | 3461 | } else |
44d01fc8 | 3462 | pr_cont("%s", buf); |
1da177e4 | 3463 | } else { |
839cb99e KA |
3464 | if (begin) { |
3465 | if (adapter != NULL && adapter->adapter_initd) | |
3466 | printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf); | |
1da177e4 | 3467 | else |
839cb99e | 3468 | printk("%s%s", blogic_msglevelmap[msglevel], buf); |
1da177e4 | 3469 | } else |
44d01fc8 | 3470 | pr_cont("%s", buf); |
1da177e4 | 3471 | } |
839cb99e | 3472 | begin = (buf[len - 1] == '\n'); |
1da177e4 LT |
3473 | } |
3474 | ||
3475 | ||
3476 | /* | |
839cb99e | 3477 | blogic_parse parses an individual option keyword. It returns true |
1da177e4 LT |
3478 | and updates the pointer if the keyword is recognized and false otherwise. |
3479 | */ | |
3480 | ||
839cb99e | 3481 | static bool __init blogic_parse(char **str, char *keyword) |
1da177e4 | 3482 | { |
839cb99e KA |
3483 | char *pointer = *str; |
3484 | while (*keyword != '\0') { | |
3485 | char strch = *pointer++; | |
3486 | char keywordch = *keyword++; | |
3487 | if (strch >= 'A' && strch <= 'Z') | |
3488 | strch += 'a' - 'Z'; | |
3489 | if (keywordch >= 'A' && keywordch <= 'Z') | |
3490 | keywordch += 'a' - 'Z'; | |
3491 | if (strch != keywordch) | |
1da177e4 LT |
3492 | return false; |
3493 | } | |
839cb99e | 3494 | *str = pointer; |
1da177e4 LT |
3495 | return true; |
3496 | } | |
3497 | ||
3498 | ||
3499 | /* | |
839cb99e | 3500 | blogic_parseopts handles processing of BusLogic Driver Options |
1da177e4 LT |
3501 | specifications. |
3502 | ||
3503 | BusLogic Driver Options may be specified either via the Linux Kernel Command | |
3504 | Line or via the Loadable Kernel Module Installation Facility. Driver Options | |
3505 | for multiple host adapters may be specified either by separating the option | |
3506 | strings by a semicolon, or by specifying multiple "BusLogic=" strings on the | |
3507 | command line. Individual option specifications for a single host adapter are | |
3508 | separated by commas. The Probing and Debugging Options apply to all host | |
3509 | adapters whereas the remaining options apply individually only to the | |
3510 | selected host adapter. | |
3511 | ||
3512 | The BusLogic Driver Probing Options are described in | |
977b899c | 3513 | <file:Documentation/scsi/BusLogic.rst>. |
1da177e4 LT |
3514 | */ |
3515 | ||
839cb99e | 3516 | static int __init blogic_parseopts(char *options) |
1da177e4 LT |
3517 | { |
3518 | while (true) { | |
839cb99e KA |
3519 | struct blogic_drvr_options *drvr_opts = |
3520 | &blogic_drvr_options[blogic_drvr_options_count++]; | |
3521 | int tgt_id; | |
3522 | ||
3523 | memset(drvr_opts, 0, sizeof(struct blogic_drvr_options)); | |
3524 | while (*options != '\0' && *options != ';') { | |
8cad3b66 | 3525 | if (blogic_parse(&options, "NoProbePCI")) |
839cb99e KA |
3526 | blogic_probe_options.noprobe_pci = true; |
3527 | else if (blogic_parse(&options, "NoProbe")) | |
3528 | blogic_probe_options.noprobe = true; | |
3529 | else if (blogic_parse(&options, "NoSortPCI")) | |
3530 | blogic_probe_options.nosort_pci = true; | |
3531 | else if (blogic_parse(&options, "MultiMasterFirst")) | |
3532 | blogic_probe_options.multimaster_first = true; | |
3533 | else if (blogic_parse(&options, "FlashPointFirst")) | |
3534 | blogic_probe_options.flashpoint_first = true; | |
1da177e4 | 3535 | /* Tagged Queuing Options. */ |
839cb99e KA |
3536 | else if (blogic_parse(&options, "QueueDepth:[") || |
3537 | blogic_parse(&options, "QD:[")) { | |
3538 | for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) { | |
3539 | unsigned short qdepth = simple_strtoul(options, &options, 0); | |
3540 | if (qdepth > BLOGIC_MAX_TAG_DEPTH) { | |
43622697 | 3541 | blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth); |
1da177e4 LT |
3542 | return 0; |
3543 | } | |
839cb99e KA |
3544 | drvr_opts->qdepth[tgt_id] = qdepth; |
3545 | if (*options == ',') | |
3546 | options++; | |
3547 | else if (*options == ']') | |
1da177e4 LT |
3548 | break; |
3549 | else { | |
43622697 | 3550 | blogic_err("BusLogic: Invalid Driver Options (',' or ']' expected at '%s')\n", NULL, options); |
1da177e4 LT |
3551 | return 0; |
3552 | } | |
3553 | } | |
839cb99e | 3554 | if (*options != ']') { |
43622697 | 3555 | blogic_err("BusLogic: Invalid Driver Options (']' expected at '%s')\n", NULL, options); |
1da177e4 LT |
3556 | return 0; |
3557 | } else | |
839cb99e KA |
3558 | options++; |
3559 | } else if (blogic_parse(&options, "QueueDepth:") || blogic_parse(&options, "QD:")) { | |
3560 | unsigned short qdepth = simple_strtoul(options, &options, 0); | |
3561 | if (qdepth == 0 || | |
3562 | qdepth > BLOGIC_MAX_TAG_DEPTH) { | |
43622697 | 3563 | blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth); |
1da177e4 LT |
3564 | return 0; |
3565 | } | |
839cb99e KA |
3566 | drvr_opts->common_qdepth = qdepth; |
3567 | for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) | |
3568 | drvr_opts->qdepth[tgt_id] = qdepth; | |
3569 | } else if (blogic_parse(&options, "TaggedQueuing:") || | |
3570 | blogic_parse(&options, "TQ:")) { | |
3571 | if (blogic_parse(&options, "Default")) { | |
3572 | drvr_opts->tagq_ok = 0x0000; | |
3573 | drvr_opts->tagq_ok_mask = 0x0000; | |
3574 | } else if (blogic_parse(&options, "Enable")) { | |
3575 | drvr_opts->tagq_ok = 0xFFFF; | |
3576 | drvr_opts->tagq_ok_mask = 0xFFFF; | |
3577 | } else if (blogic_parse(&options, "Disable")) { | |
3578 | drvr_opts->tagq_ok = 0x0000; | |
3579 | drvr_opts->tagq_ok_mask = 0xFFFF; | |
1da177e4 | 3580 | } else { |
839cb99e KA |
3581 | unsigned short tgt_bit; |
3582 | for (tgt_id = 0, tgt_bit = 1; | |
3583 | tgt_id < BLOGIC_MAXDEV; | |
3584 | tgt_id++, tgt_bit <<= 1) | |
3585 | switch (*options++) { | |
1da177e4 | 3586 | case 'Y': |
839cb99e KA |
3587 | drvr_opts->tagq_ok |= tgt_bit; |
3588 | drvr_opts->tagq_ok_mask |= tgt_bit; | |
1da177e4 LT |
3589 | break; |
3590 | case 'N': | |
839cb99e KA |
3591 | drvr_opts->tagq_ok &= ~tgt_bit; |
3592 | drvr_opts->tagq_ok_mask |= tgt_bit; | |
1da177e4 LT |
3593 | break; |
3594 | case 'X': | |
3595 | break; | |
3596 | default: | |
839cb99e KA |
3597 | options--; |
3598 | tgt_id = BLOGIC_MAXDEV; | |
1da177e4 LT |
3599 | break; |
3600 | } | |
3601 | } | |
3602 | } | |
3603 | /* Miscellaneous Options. */ | |
839cb99e KA |
3604 | else if (blogic_parse(&options, "BusSettleTime:") || |
3605 | blogic_parse(&options, "BST:")) { | |
3606 | unsigned short bus_settle_time = | |
3607 | simple_strtoul(options, &options, 0); | |
3608 | if (bus_settle_time > 5 * 60) { | |
43622697 | 3609 | blogic_err("BusLogic: Invalid Driver Options (invalid Bus Settle Time %d)\n", NULL, bus_settle_time); |
1da177e4 LT |
3610 | return 0; |
3611 | } | |
839cb99e KA |
3612 | drvr_opts->bus_settle_time = bus_settle_time; |
3613 | } else if (blogic_parse(&options, | |
3614 | "InhibitTargetInquiry")) | |
3615 | drvr_opts->stop_tgt_inquiry = true; | |
1da177e4 | 3616 | /* Debugging Options. */ |
839cb99e KA |
3617 | else if (blogic_parse(&options, "TraceProbe")) |
3618 | blogic_global_options.trace_probe = true; | |
3619 | else if (blogic_parse(&options, "TraceHardwareReset")) | |
3620 | blogic_global_options.trace_hw_reset = true; | |
3621 | else if (blogic_parse(&options, "TraceConfiguration")) | |
3622 | blogic_global_options.trace_config = true; | |
3623 | else if (blogic_parse(&options, "TraceErrors")) | |
3624 | blogic_global_options.trace_err = true; | |
3625 | else if (blogic_parse(&options, "Debug")) { | |
3626 | blogic_global_options.trace_probe = true; | |
3627 | blogic_global_options.trace_hw_reset = true; | |
3628 | blogic_global_options.trace_config = true; | |
3629 | blogic_global_options.trace_err = true; | |
1da177e4 | 3630 | } |
839cb99e KA |
3631 | if (*options == ',') |
3632 | options++; | |
3633 | else if (*options != ';' && *options != '\0') { | |
43622697 | 3634 | blogic_err("BusLogic: Unexpected Driver Option '%s' ignored\n", NULL, options); |
839cb99e | 3635 | *options = '\0'; |
1da177e4 LT |
3636 | } |
3637 | } | |
839cb99e KA |
3638 | if (!(blogic_drvr_options_count == 0 || |
3639 | blogic_probeinfo_count == 0 || | |
3640 | blogic_drvr_options_count == blogic_probeinfo_count)) { | |
43622697 | 3641 | blogic_err("BusLogic: Invalid Driver Options (all or no I/O Addresses must be specified)\n", NULL); |
1da177e4 LT |
3642 | return 0; |
3643 | } | |
3644 | /* | |
3645 | Tagged Queuing is disabled when the Queue Depth is 1 since queuing | |
3646 | multiple commands is not possible. | |
3647 | */ | |
839cb99e KA |
3648 | for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) |
3649 | if (drvr_opts->qdepth[tgt_id] == 1) { | |
3650 | unsigned short tgt_bit = 1 << tgt_id; | |
3651 | drvr_opts->tagq_ok &= ~tgt_bit; | |
3652 | drvr_opts->tagq_ok_mask |= tgt_bit; | |
1da177e4 | 3653 | } |
839cb99e KA |
3654 | if (*options == ';') |
3655 | options++; | |
3656 | if (*options == '\0') | |
1da177e4 LT |
3657 | return 0; |
3658 | } | |
3659 | return 1; | |
3660 | } | |
3661 | ||
3662 | /* | |
3663 | Get it all started | |
3664 | */ | |
3665 | ||
839cb99e | 3666 | static struct scsi_host_template blogic_template = { |
1da177e4 LT |
3667 | .module = THIS_MODULE, |
3668 | .proc_name = "BusLogic", | |
839cb99e KA |
3669 | .write_info = blogic_write_info, |
3670 | .show_info = blogic_show_info, | |
1da177e4 | 3671 | .name = "BusLogic", |
839cb99e KA |
3672 | .info = blogic_drvr_info, |
3673 | .queuecommand = blogic_qcmd, | |
3674 | .slave_configure = blogic_slaveconfig, | |
3675 | .bios_param = blogic_diskparam, | |
3676 | .eh_host_reset_handler = blogic_hostreset, | |
1da177e4 | 3677 | #if 0 |
839cb99e | 3678 | .eh_abort_handler = blogic_abort, |
1da177e4 | 3679 | #endif |
1da177e4 | 3680 | .max_sectors = 128, |
1da177e4 LT |
3681 | }; |
3682 | ||
3683 | /* | |
839cb99e | 3684 | blogic_setup handles processing of Kernel Command Line Arguments. |
1da177e4 LT |
3685 | */ |
3686 | ||
839cb99e | 3687 | static int __init blogic_setup(char *str) |
1da177e4 LT |
3688 | { |
3689 | int ints[3]; | |
3690 | ||
3691 | (void) get_options(str, ARRAY_SIZE(ints), ints); | |
3692 | ||
3693 | if (ints[0] != 0) { | |
43622697 | 3694 | blogic_err("BusLogic: Obsolete Command Line Entry Format Ignored\n", NULL); |
1da177e4 LT |
3695 | return 0; |
3696 | } | |
3697 | if (str == NULL || *str == '\0') | |
3698 | return 0; | |
839cb99e | 3699 | return blogic_parseopts(str); |
1da177e4 LT |
3700 | } |
3701 | ||
3702 | /* | |
3703 | * Exit function. Deletes all hosts associated with this driver. | |
3704 | */ | |
3705 | ||
839cb99e | 3706 | static void __exit blogic_exit(void) |
1da177e4 | 3707 | { |
839cb99e | 3708 | struct blogic_adapter *ha, *next; |
1da177e4 | 3709 | |
839cb99e KA |
3710 | list_for_each_entry_safe(ha, next, &blogic_host_list, host_list) |
3711 | blogic_deladapter(ha); | |
1da177e4 LT |
3712 | } |
3713 | ||
839cb99e | 3714 | __setup("BusLogic=", blogic_setup); |
1da177e4 | 3715 | |
1079a2d2 | 3716 | #ifdef MODULE |
839cb99e | 3717 | /*static struct pci_device_id blogic_pci_tbl[] = { |
745b5715 BC |
3718 | { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER, |
3719 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
3720 | { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC, | |
3721 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
3722 | { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT, | |
3723 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
3724 | { } | |
839cb99e | 3725 | };*/ |
9baa3c34 | 3726 | static const struct pci_device_id blogic_pci_tbl[] = { |
839cb99e KA |
3727 | {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER)}, |
3728 | {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC)}, | |
3729 | {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT)}, | |
3730 | {0, }, | |
745b5715 | 3731 | }; |
1079a2d2 | 3732 | #endif |
839cb99e | 3733 | MODULE_DEVICE_TABLE(pci, blogic_pci_tbl); |
745b5715 | 3734 | |
839cb99e KA |
3735 | module_init(blogic_init); |
3736 | module_exit(blogic_exit); |