]> git.ipfire.org Git - thirdparty/kernel/stable.git/blob - drivers/scsi/qlogicfc.c
projects / thirdparty / kernel / stable.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Linux-2.6.12-rc2
[thirdparty/kernel/stable.git] / drivers / scsi / qlogicfc.c
1 /*
2 * QLogic ISP2x00 SCSI-FCP
3 * Written by Erik H. Moe, ehm@cris.com
4 * Copyright 1995, Erik H. Moe
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
9 * later version.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 */
16
17 /* Renamed and updated to 1.3.x by Michael Griffith <grif@cs.ucr.edu> */
18
19 /* This is a version of the isp1020 driver which was modified by
20 * Chris Loveland <cwl@iol.unh.edu> to support the isp2100 and isp2200
21 *
22 * Big endian support and dynamic DMA mapping added
23 * by Jakub Jelinek <jakub@redhat.com>.
24 *
25 * Conversion to final pci64 DMA interfaces
26 * by David S. Miller <davem@redhat.com>.
27 */
28
29 /*
30 * $Date: 1995/09/22 02:23:15 $
31 * $Revision: 0.5 $
32 *
33 * $Log: isp1020.c,v $
34 * Revision 0.5 1995/09/22 02:23:15 root
35 * do auto request sense
36 *
37 * Revision 0.4 1995/08/07 04:44:33 root
38 * supply firmware with driver.
39 * numerous bug fixes/general cleanup of code.
40 *
41 * Revision 0.3 1995/07/16 16:15:39 root
42 * added reset/abort code.
43 *
44 * Revision 0.2 1995/06/29 03:14:19 root
45 * fixed biosparam.
46 * added queue protocol.
47 *
48 * Revision 0.1 1995/06/25 01:55:45 root
49 * Initial release.
50 *
51 */
52
53 #include <linux/blkdev.h>
54 #include <linux/kernel.h>
55 #include <linux/string.h>
56 #include <linux/ioport.h>
57 #include <linux/sched.h>
58 #include <linux/types.h>
59 #include <linux/pci.h>
60 #include <linux/delay.h>
61 #include <linux/unistd.h>
62 #include <linux/spinlock.h>
63 #include <linux/interrupt.h>
64 #include <asm/io.h>
65 #include <asm/irq.h>
66 #include "scsi.h"
67 #include <scsi/scsi_host.h>
68
69 #define pci64_dma_hi32(a) ((u32) (0xffffffff & (((u64)(a))>>32)))
70 #define pci64_dma_lo32(a) ((u32) (0xffffffff & (((u64)(a)))))
71 #define pci64_dma_build(hi,lo) \
72 ((dma_addr_t)(((u64)(lo))|(((u64)(hi))<<32)))
73
74 /*
75 * With the qlogic interface, every queue slot can hold a SCSI
76 * command with up to 2 scatter/gather entries. If we need more
77 * than 2 entries, continuation entries can be used that hold
78 * another 5 entries each. Unlike for other drivers, this means
79 * that the maximum number of scatter/gather entries we can
80 * support at any given time is a function of the number of queue
81 * slots available. That is, host->can_queue and host->sg_tablesize
82 * are dynamic and _not_ independent. This all works fine because
83 * requests are queued serially and the scatter/gather limit is
84 * determined for each queue request anew.
85 */
86
87 #define DATASEGS_PER_COMMAND 2
88 #define DATASEGS_PER_CONT 5
89
90 #define QLOGICFC_REQ_QUEUE_LEN 255 /* must be power of two - 1 */
91 #define QLOGICFC_MAX_SG(ql) (DATASEGS_PER_COMMAND + (((ql) > 0) ? DATASEGS_PER_CONT*((ql) - 1) : 0))
92 #define QLOGICFC_CMD_PER_LUN 8
93
94 /* Configuration section **************************************************** */
95
96 /* Set the following macro to 1 to reload the ISP2x00's firmware. This is
97 version 1.17.30 of the isp2100's firmware and version 2.00.40 of the
98 isp2200's firmware.
99 */
100
101 #define USE_NVRAM_DEFAULTS 1
102
103 #define ISP2x00_PORTDB 1
104
105 /* Set the following to 1 to include fabric support, fabric support is
106 * currently not as well tested as the other aspects of the driver */
107
108 #define ISP2x00_FABRIC 1
109
110 /* Macros used for debugging */
111 #define DEBUG_ISP2x00 0
112 #define DEBUG_ISP2x00_INT 0
113 #define DEBUG_ISP2x00_INTR 0
114 #define DEBUG_ISP2x00_SETUP 0
115 #define DEBUG_ISP2x00_FABRIC 0
116 #define TRACE_ISP 0
117
118
119 #define DEFAULT_LOOP_COUNT 1000000000
120
121 #define ISP_TIMEOUT (2*HZ)
122 /* End Configuration section ************************************************ */
123
124 #include <linux/module.h>
125
126 #if TRACE_ISP
127
128 #define TRACE_BUF_LEN (32*1024)
129
130 struct {
131 u_long next;
132 struct {
133 u_long time;
134 u_int index;
135 u_int addr;
136 u_char *name;
137 } buf[TRACE_BUF_LEN];
138 } trace;
139
140 #define TRACE(w, i, a) \
141 { \
142 unsigned long flags; \
143 \
144 save_flags(flags); \
145 cli(); \
146 trace.buf[trace.next].name = (w); \
147 trace.buf[trace.next].time = jiffies; \
148 trace.buf[trace.next].index = (i); \
149 trace.buf[trace.next].addr = (long) (a); \
150 trace.next = (trace.next + 1) & (TRACE_BUF_LEN - 1); \
151 restore_flags(flags); \
152 }
153
154 #else
155 #define TRACE(w, i, a)
156 #endif
157
158 #if DEBUG_ISP2x00_FABRIC
159 #define DEBUG_FABRIC(x) x
160 #else
161 #define DEBUG_FABRIC(x)
162 #endif /* DEBUG_ISP2x00_FABRIC */
163
164
165 #if DEBUG_ISP2x00
166 #define ENTER(x) printk("isp2x00 : entering %s()\n", x);
167 #define LEAVE(x) printk("isp2x00 : leaving %s()\n", x);
168 #define DEBUG(x) x
169 #else
170 #define ENTER(x)
171 #define LEAVE(x)
172 #define DEBUG(x)
173 #endif /* DEBUG_ISP2x00 */
174
175 #if DEBUG_ISP2x00_INTR
176 #define ENTER_INTR(x) printk("isp2x00 : entering %s()\n", x);
177 #define LEAVE_INTR(x) printk("isp2x00 : leaving %s()\n", x);
178 #define DEBUG_INTR(x) x
179 #else
180 #define ENTER_INTR(x)
181 #define LEAVE_INTR(x)
182 #define DEBUG_INTR(x)
183 #endif /* DEBUG ISP2x00_INTR */
184
185
186 #define ISP2100_REV_ID1 1
187 #define ISP2100_REV_ID3 3
188 #define ISP2200_REV_ID5 5
189
190 /* host configuration and control registers */
191 #define HOST_HCCR 0xc0 /* host command and control */
192
193 /* pci bus interface registers */
194 #define FLASH_BIOS_ADDR 0x00
195 #define FLASH_BIOS_DATA 0x02
196 #define ISP_CTRL_STATUS 0x06 /* configuration register #1 */
197 #define PCI_INTER_CTL 0x08 /* pci interrupt control */
198 #define PCI_INTER_STS 0x0a /* pci interrupt status */
199 #define PCI_SEMAPHORE 0x0c /* pci semaphore */
200 #define PCI_NVRAM 0x0e /* pci nvram interface */
201
202 /* mailbox registers */
203 #define MBOX0 0x10 /* mailbox 0 */
204 #define MBOX1 0x12 /* mailbox 1 */
205 #define MBOX2 0x14 /* mailbox 2 */
206 #define MBOX3 0x16 /* mailbox 3 */
207 #define MBOX4 0x18 /* mailbox 4 */
208 #define MBOX5 0x1a /* mailbox 5 */
209 #define MBOX6 0x1c /* mailbox 6 */
210 #define MBOX7 0x1e /* mailbox 7 */
211
212 /* mailbox command complete status codes */
213 #define MBOX_COMMAND_COMPLETE 0x4000
214 #define INVALID_COMMAND 0x4001
215 #define HOST_INTERFACE_ERROR 0x4002
216 #define TEST_FAILED 0x4003
217 #define COMMAND_ERROR 0x4005
218 #define COMMAND_PARAM_ERROR 0x4006
219 #define PORT_ID_USED 0x4007
220 #define LOOP_ID_USED 0x4008
221 #define ALL_IDS_USED 0x4009
222
223 /* async event status codes */
224 #define RESET_DETECTED 0x8001
225 #define SYSTEM_ERROR 0x8002
226 #define REQUEST_TRANSFER_ERROR 0x8003
227 #define RESPONSE_TRANSFER_ERROR 0x8004
228 #define REQUEST_QUEUE_WAKEUP 0x8005
229 #define LIP_OCCURRED 0x8010
230 #define LOOP_UP 0x8011
231 #define LOOP_DOWN 0x8012
232 #define LIP_RECEIVED 0x8013
233 #define PORT_DB_CHANGED 0x8014
234 #define CHANGE_NOTIFICATION 0x8015
235 #define SCSI_COMMAND_COMPLETE 0x8020
236 #define POINT_TO_POINT_UP 0x8030
237 #define CONNECTION_MODE 0x8036
238
239 struct Entry_header {
240 u_char entry_type;
241 u_char entry_cnt;
242 u_char sys_def_1;
243 u_char flags;
244 };
245
246 /* entry header type commands */
247 #define ENTRY_COMMAND 0x19
248 #define ENTRY_CONTINUATION 0x0a
249
250 #define ENTRY_STATUS 0x03
251 #define ENTRY_MARKER 0x04
252
253
254 /* entry header flag definitions */
255 #define EFLAG_BUSY 2
256 #define EFLAG_BAD_HEADER 4
257 #define EFLAG_BAD_PAYLOAD 8
258
259 struct dataseg {
260 u_int d_base;
261 u_int d_base_hi;
262 u_int d_count;
263 };
264
265 struct Command_Entry {
266 struct Entry_header hdr;
267 u_int handle;
268 u_char target_lun;
269 u_char target_id;
270 u_short expanded_lun;
271 u_short control_flags;
272 u_short rsvd2;
273 u_short time_out;
274 u_short segment_cnt;
275 u_char cdb[16];
276 u_int total_byte_cnt;
277 struct dataseg dataseg[DATASEGS_PER_COMMAND];
278 };
279
280 /* command entry control flag definitions */
281 #define CFLAG_NODISC 0x01
282 #define CFLAG_HEAD_TAG 0x02
283 #define CFLAG_ORDERED_TAG 0x04
284 #define CFLAG_SIMPLE_TAG 0x08
285 #define CFLAG_TAR_RTN 0x10
286 #define CFLAG_READ 0x20
287 #define CFLAG_WRITE 0x40
288
289 struct Continuation_Entry {
290 struct Entry_header hdr;
291 struct dataseg dataseg[DATASEGS_PER_CONT];
292 };
293
294 struct Marker_Entry {
295 struct Entry_header hdr;
296 u_int reserved;
297 u_char target_lun;
298 u_char target_id;
299 u_char modifier;
300 u_char expanded_lun;
301 u_char rsvds[52];
302 };
303
304 /* marker entry modifier definitions */
305 #define SYNC_DEVICE 0
306 #define SYNC_TARGET 1
307 #define SYNC_ALL 2
308
309 struct Status_Entry {
310 struct Entry_header hdr;
311 u_int handle;
312 u_short scsi_status;
313 u_short completion_status;
314 u_short state_flags;
315 u_short status_flags;
316 u_short res_info_len;
317 u_short req_sense_len;
318 u_int residual;
319 u_char res_info[8];
320 u_char req_sense_data[32];
321 };
322
323 /* status entry completion status definitions */
324 #define CS_COMPLETE 0x0000
325 #define CS_DMA_ERROR 0x0002
326 #define CS_RESET_OCCURRED 0x0004
327 #define CS_ABORTED 0x0005
328 #define CS_TIMEOUT 0x0006
329 #define CS_DATA_OVERRUN 0x0007
330 #define CS_DATA_UNDERRUN 0x0015
331 #define CS_QUEUE_FULL 0x001c
332 #define CS_PORT_UNAVAILABLE 0x0028
333 #define CS_PORT_LOGGED_OUT 0x0029
334 #define CS_PORT_CONFIG_CHANGED 0x002a
335
336 /* status entry state flag definitions */
337 #define SF_SENT_CDB 0x0400
338 #define SF_TRANSFERRED_DATA 0x0800
339 #define SF_GOT_STATUS 0x1000
340
341 /* status entry status flag definitions */
342 #define STF_BUS_RESET 0x0008
343 #define STF_DEVICE_RESET 0x0010
344 #define STF_ABORTED 0x0020
345 #define STF_TIMEOUT 0x0040
346
347 /* interrupt control commands */
348 #define ISP_EN_INT 0x8000
349 #define ISP_EN_RISC 0x0008
350
351 /* host control commands */
352 #define HCCR_NOP 0x0000
353 #define HCCR_RESET 0x1000
354 #define HCCR_PAUSE 0x2000
355 #define HCCR_RELEASE 0x3000
356 #define HCCR_SINGLE_STEP 0x4000
357 #define HCCR_SET_HOST_INTR 0x5000
358 #define HCCR_CLEAR_HOST_INTR 0x6000
359 #define HCCR_CLEAR_RISC_INTR 0x7000
360 #define HCCR_BP_ENABLE 0x8000
361 #define HCCR_BIOS_DISABLE 0x9000
362 #define HCCR_TEST_MODE 0xf000
363
364 #define RISC_BUSY 0x0004
365
366 /* mailbox commands */
367 #define MBOX_NO_OP 0x0000
368 #define MBOX_LOAD_RAM 0x0001
369 #define MBOX_EXEC_FIRMWARE 0x0002
370 #define MBOX_DUMP_RAM 0x0003
371 #define MBOX_WRITE_RAM_WORD 0x0004
372 #define MBOX_READ_RAM_WORD 0x0005
373 #define MBOX_MAILBOX_REG_TEST 0x0006
374 #define MBOX_VERIFY_CHECKSUM 0x0007
375 #define MBOX_ABOUT_FIRMWARE 0x0008
376 #define MBOX_LOAD_RISC_RAM 0x0009
377 #define MBOX_DUMP_RISC_RAM 0x000a
378 #define MBOX_CHECK_FIRMWARE 0x000e
379 #define MBOX_INIT_REQ_QUEUE 0x0010
380 #define MBOX_INIT_RES_QUEUE 0x0011
381 #define MBOX_EXECUTE_IOCB 0x0012
382 #define MBOX_WAKE_UP 0x0013
383 #define MBOX_STOP_FIRMWARE 0x0014
384 #define MBOX_ABORT_IOCB 0x0015
385 #define MBOX_ABORT_DEVICE 0x0016
386 #define MBOX_ABORT_TARGET 0x0017
387 #define MBOX_BUS_RESET 0x0018
388 #define MBOX_STOP_QUEUE 0x0019
389 #define MBOX_START_QUEUE 0x001a
390 #define MBOX_SINGLE_STEP_QUEUE 0x001b
391 #define MBOX_ABORT_QUEUE 0x001c
392 #define MBOX_GET_DEV_QUEUE_STATUS 0x001d
393 #define MBOX_GET_FIRMWARE_STATUS 0x001f
394 #define MBOX_GET_INIT_SCSI_ID 0x0020
395 #define MBOX_GET_RETRY_COUNT 0x0022
396 #define MBOX_GET_TARGET_PARAMS 0x0028
397 #define MBOX_GET_DEV_QUEUE_PARAMS 0x0029
398 #define MBOX_SET_RETRY_COUNT 0x0032
399 #define MBOX_SET_TARGET_PARAMS 0x0038
400 #define MBOX_SET_DEV_QUEUE_PARAMS 0x0039
401 #define MBOX_EXECUTE_IOCB64 0x0054
402 #define MBOX_INIT_FIRMWARE 0x0060
403 #define MBOX_GET_INIT_CB 0x0061
404 #define MBOX_INIT_LIP 0x0062
405 #define MBOX_GET_POS_MAP 0x0063
406 #define MBOX_GET_PORT_DB 0x0064
407 #define MBOX_CLEAR_ACA 0x0065
408 #define MBOX_TARGET_RESET 0x0066
409 #define MBOX_CLEAR_TASK_SET 0x0067
410 #define MBOX_ABORT_TASK_SET 0x0068
411 #define MBOX_GET_FIRMWARE_STATE 0x0069
412 #define MBOX_GET_PORT_NAME 0x006a
413 #define MBOX_SEND_SNS 0x006e
414 #define MBOX_PORT_LOGIN 0x006f
415 #define MBOX_SEND_CHANGE_REQUEST 0x0070
416 #define MBOX_PORT_LOGOUT 0x0071
417
418 /*
419 * Firmware if needed (note this is a hack, it belongs in a separate
420 * module.
421 */
422
423 #ifdef CONFIG_SCSI_QLOGIC_FC_FIRMWARE
424 #include "qlogicfc_asm.c"
425 #else
426 static unsigned short risc_code_addr01 = 0x1000 ;
427 #endif
428
429 /* Each element in mbox_param is an 8 bit bitmap where each bit indicates
430 if that mbox should be copied as input. For example 0x2 would mean
431 only copy mbox1. */
432
433 static const u_char mbox_param[] =
434 {
435 0x01, /* MBOX_NO_OP */
436 0x1f, /* MBOX_LOAD_RAM */
437 0x03, /* MBOX_EXEC_FIRMWARE */
438 0x1f, /* MBOX_DUMP_RAM */
439 0x07, /* MBOX_WRITE_RAM_WORD */
440 0x03, /* MBOX_READ_RAM_WORD */
441 0xff, /* MBOX_MAILBOX_REG_TEST */
442 0x03, /* MBOX_VERIFY_CHECKSUM */
443 0x01, /* MBOX_ABOUT_FIRMWARE */
444 0xff, /* MBOX_LOAD_RISC_RAM */
445 0xff, /* MBOX_DUMP_RISC_RAM */
446 0x00, /* 0x000b */
447 0x00, /* 0x000c */
448 0x00, /* 0x000d */
449 0x01, /* MBOX_CHECK_FIRMWARE */
450 0x00, /* 0x000f */
451 0x1f, /* MBOX_INIT_REQ_QUEUE */
452 0x2f, /* MBOX_INIT_RES_QUEUE */
453 0x0f, /* MBOX_EXECUTE_IOCB */
454 0x03, /* MBOX_WAKE_UP */
455 0x01, /* MBOX_STOP_FIRMWARE */
456 0x0f, /* MBOX_ABORT_IOCB */
457 0x03, /* MBOX_ABORT_DEVICE */
458 0x07, /* MBOX_ABORT_TARGET */
459 0x03, /* MBOX_BUS_RESET */
460 0x03, /* MBOX_STOP_QUEUE */
461 0x03, /* MBOX_START_QUEUE */
462 0x03, /* MBOX_SINGLE_STEP_QUEUE */
463 0x03, /* MBOX_ABORT_QUEUE */
464 0x03, /* MBOX_GET_DEV_QUEUE_STATUS */
465 0x00, /* 0x001e */
466 0x01, /* MBOX_GET_FIRMWARE_STATUS */
467 0x01, /* MBOX_GET_INIT_SCSI_ID */
468 0x00, /* 0x0021 */
469 0x01, /* MBOX_GET_RETRY_COUNT */
470 0x00, /* 0x0023 */
471 0x00, /* 0x0024 */
472 0x00, /* 0x0025 */
473 0x00, /* 0x0026 */
474 0x00, /* 0x0027 */
475 0x03, /* MBOX_GET_TARGET_PARAMS */
476 0x03, /* MBOX_GET_DEV_QUEUE_PARAMS */
477 0x00, /* 0x002a */
478 0x00, /* 0x002b */
479 0x00, /* 0x002c */
480 0x00, /* 0x002d */
481 0x00, /* 0x002e */
482 0x00, /* 0x002f */
483 0x00, /* 0x0030 */
484 0x00, /* 0x0031 */
485 0x07, /* MBOX_SET_RETRY_COUNT */
486 0x00, /* 0x0033 */
487 0x00, /* 0x0034 */
488 0x00, /* 0x0035 */
489 0x00, /* 0x0036 */
490 0x00, /* 0x0037 */
491 0x0f, /* MBOX_SET_TARGET_PARAMS */
492 0x0f, /* MBOX_SET_DEV_QUEUE_PARAMS */
493 0x00, /* 0x003a */
494 0x00, /* 0x003b */
495 0x00, /* 0x003c */
496 0x00, /* 0x003d */
497 0x00, /* 0x003e */
498 0x00, /* 0x003f */
499 0x00, /* 0x0040 */
500 0x00, /* 0x0041 */
501 0x00, /* 0x0042 */
502 0x00, /* 0x0043 */
503 0x00, /* 0x0044 */
504 0x00, /* 0x0045 */
505 0x00, /* 0x0046 */
506 0x00, /* 0x0047 */
507 0x00, /* 0x0048 */
508 0x00, /* 0x0049 */
509 0x00, /* 0x004a */
510 0x00, /* 0x004b */
511 0x00, /* 0x004c */
512 0x00, /* 0x004d */
513 0x00, /* 0x004e */
514 0x00, /* 0x004f */
515 0x00, /* 0x0050 */
516 0x00, /* 0x0051 */
517 0x00, /* 0x0052 */
518 0x00, /* 0x0053 */
519 0xcf, /* MBOX_EXECUTE_IOCB64 */
520 0x00, /* 0x0055 */
521 0x00, /* 0x0056 */
522 0x00, /* 0x0057 */
523 0x00, /* 0x0058 */
524 0x00, /* 0x0059 */
525 0x00, /* 0x005a */
526 0x00, /* 0x005b */
527 0x00, /* 0x005c */
528 0x00, /* 0x005d */
529 0x00, /* 0x005e */
530 0x00, /* 0x005f */
531 0xff, /* MBOX_INIT_FIRMWARE */
532 0xcd, /* MBOX_GET_INIT_CB */
533 0x01, /* MBOX_INIT_LIP */
534 0xcd, /* MBOX_GET_POS_MAP */
535 0xcf, /* MBOX_GET_PORT_DB */
536 0x03, /* MBOX_CLEAR_ACA */
537 0x03, /* MBOX_TARGET_RESET */
538 0x03, /* MBOX_CLEAR_TASK_SET */
539 0x03, /* MBOX_ABORT_TASK_SET */
540 0x01, /* MBOX_GET_FIRMWARE_STATE */
541 0x03, /* MBOX_GET_PORT_NAME */
542 0x00, /* 0x006b */
543 0x00, /* 0x006c */
544 0x00, /* 0x006d */
545 0xcf, /* MBOX_SEND_SNS */
546 0x0f, /* MBOX_PORT_LOGIN */
547 0x03, /* MBOX_SEND_CHANGE_REQUEST */
548 0x03, /* MBOX_PORT_LOGOUT */
549 };
550
551 #define MAX_MBOX_COMMAND (sizeof(mbox_param)/sizeof(u_short))
552
553
554 struct id_name_map {
555 u64 wwn;
556 u_char loop_id;
557 };
558
559 struct sns_cb {
560 u_short len;
561 u_short res1;
562 u_int response_low;
563 u_int response_high;
564 u_short sub_len;
565 u_short res2;
566 u_char data[44];
567 };
568
569 /* address of instance of this struct is passed to adapter to initialize things
570 */
571 struct init_cb {
572 u_char version;
573 u_char reseverd1[1];
574 u_short firm_opts;
575 u_short max_frame_len;
576 u_short max_iocb;
577 u_short exec_throttle;
578 u_char retry_cnt;
579 u_char retry_delay;
580 u_short node_name[4];
581 u_short hard_addr;
582 u_char reserved2[10];
583 u_short req_queue_out;
584 u_short res_queue_in;
585 u_short req_queue_len;
586 u_short res_queue_len;
587 u_int req_queue_addr_lo;
588 u_int req_queue_addr_high;
589 u_int res_queue_addr_lo;
590 u_int res_queue_addr_high;
591 /* the rest of this structure only applies to the isp2200 */
592 u_short lun_enables;
593 u_char cmd_resource_cnt;
594 u_char notify_resource_cnt;
595 u_short timeout;
596 u_short reserved3;
597 u_short add_firm_opts;
598 u_char res_accum_timer;
599 u_char irq_delay_timer;
600 u_short special_options;
601 u_short reserved4[13];
602 };
603
604 /*
605 * The result queue can be quite a bit smaller since continuation entries
606 * do not show up there:
607 */
608 #define RES_QUEUE_LEN ((QLOGICFC_REQ_QUEUE_LEN + 1) / 8 - 1)
609 #define QUEUE_ENTRY_LEN 64
610
611 #if ISP2x00_FABRIC
612 #define QLOGICFC_MAX_ID 0xff
613 #else
614 #define QLOGICFC_MAX_ID 0x7d
615 #endif
616
617 #define QLOGICFC_MAX_LUN 128
618 #define QLOGICFC_MAX_LOOP_ID 0x7d
619
620 /* the following connection options only apply to the 2200. i have only
621 * had success with LOOP_ONLY and P2P_ONLY.
622 */
623
624 #define LOOP_ONLY 0
625 #define P2P_ONLY 1
626 #define LOOP_PREFERED 2
627 #define P2P_PREFERED 3
628
629 #define CONNECTION_PREFERENCE LOOP_ONLY
630
631 /* adapter_state values */
632 #define AS_FIRMWARE_DEAD -1
633 #define AS_LOOP_DOWN 0
634 #define AS_LOOP_GOOD 1
635 #define AS_REDO_FABRIC_PORTDB 2
636 #define AS_REDO_LOOP_PORTDB 4
637
638 #define RES_SIZE ((RES_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN)
639 #define REQ_SIZE ((QLOGICFC_REQ_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN)
640
641 struct isp2x00_hostdata {
642 u_char revision;
643 struct pci_dev *pci_dev;
644 /* result and request queues (shared with isp2x00): */
645 u_int req_in_ptr; /* index of next request slot */
646 u_int res_out_ptr; /* index of next result slot */
647
648 /* this is here so the queues are nicely aligned */
649 long send_marker; /* do we need to send a marker? */
650
651 char * res;
652 char * req;
653 struct init_cb control_block;
654 int adapter_state;
655 unsigned long int tag_ages[QLOGICFC_MAX_ID + 1];
656 Scsi_Cmnd *handle_ptrs[QLOGICFC_REQ_QUEUE_LEN + 1];
657 unsigned long handle_serials[QLOGICFC_REQ_QUEUE_LEN + 1];
658 struct id_name_map port_db[QLOGICFC_MAX_ID + 1];
659 u_char mbox_done;
660 u64 wwn;
661 u_int port_id;
662 u_char queued;
663 u_char host_id;
664 struct timer_list explore_timer;
665 struct id_name_map tempmap[QLOGICFC_MAX_ID + 1];
666 };
667
668
669 /* queue length's _must_ be power of two: */
670 #define QUEUE_DEPTH(in, out, ql) ((in - out) & (ql))
671 #define REQ_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, \
672 QLOGICFC_REQ_QUEUE_LEN)
673 #define RES_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, RES_QUEUE_LEN)
674
675 static void isp2x00_enable_irqs(struct Scsi_Host *);
676 static void isp2x00_disable_irqs(struct Scsi_Host *);
677 static int isp2x00_init(struct Scsi_Host *);
678 static int isp2x00_reset_hardware(struct Scsi_Host *);
679 static int isp2x00_mbox_command(struct Scsi_Host *, u_short[]);
680 static int isp2x00_return_status(Scsi_Cmnd *, struct Status_Entry *);
681 static void isp2x00_intr_handler(int, void *, struct pt_regs *);
682 static irqreturn_t do_isp2x00_intr_handler(int, void *, struct pt_regs *);
683 static int isp2x00_make_portdb(struct Scsi_Host *);
684
685 #if ISP2x00_FABRIC
686 static int isp2x00_init_fabric(struct Scsi_Host *, struct id_name_map *, int);
687 #endif
688
689 #if USE_NVRAM_DEFAULTS
690 static int isp2x00_get_nvram_defaults(struct Scsi_Host *, struct init_cb *);
691 static u_short isp2x00_read_nvram_word(struct Scsi_Host *, u_short);
692 #endif
693
694 #if DEBUG_ISP2x00
695 static void isp2x00_print_scsi_cmd(Scsi_Cmnd *);
696 #endif
697
698 #if DEBUG_ISP2x00_INTR
699 static void isp2x00_print_status_entry(struct Status_Entry *);
700 #endif
701
702 static inline void isp2x00_enable_irqs(struct Scsi_Host *host)
703 {
704 outw(ISP_EN_INT | ISP_EN_RISC, host->io_port + PCI_INTER_CTL);
705 }
706
707
708 static inline void isp2x00_disable_irqs(struct Scsi_Host *host)
709 {
710 outw(0x0, host->io_port + PCI_INTER_CTL);
711 }
712
713
714 static int isp2x00_detect(Scsi_Host_Template * tmpt)
715 {
716 int hosts = 0;
717 unsigned long wait_time;
718 struct Scsi_Host *host = NULL;
719 struct isp2x00_hostdata *hostdata;
720 struct pci_dev *pdev;
721 unsigned short device_ids[2];
722 dma_addr_t busaddr;
723 int i;
724
725
726 ENTER("isp2x00_detect");
727
728 device_ids[0] = PCI_DEVICE_ID_QLOGIC_ISP2100;
729 device_ids[1] = PCI_DEVICE_ID_QLOGIC_ISP2200;
730
731 tmpt->proc_name = "isp2x00";
732
733 for (i=0; i<2; i++){
734 pdev = NULL;
735 while ((pdev = pci_find_device(PCI_VENDOR_ID_QLOGIC, device_ids[i], pdev))) {
736 if (pci_enable_device(pdev))
737 continue;
738
739 /* Try to configure DMA attributes. */
740 if (pci_set_dma_mask(pdev, 0xffffffffffffffffULL) &&
741 pci_set_dma_mask(pdev, 0xffffffffULL))
742 continue;
743
744 host = scsi_register(tmpt, sizeof(struct isp2x00_hostdata));
745 if (!host) {
746 printk("qlogicfc%d : could not register host.\n", hosts);
747 continue;
748 }
749 scsi_set_device(host, &pdev->dev);
750 host->max_id = QLOGICFC_MAX_ID + 1;
751 host->max_lun = QLOGICFC_MAX_LUN;
752 hostdata = (struct isp2x00_hostdata *) host->hostdata;
753
754 memset(hostdata, 0, sizeof(struct isp2x00_hostdata));
755 hostdata->pci_dev = pdev;
756 hostdata->res = pci_alloc_consistent(pdev, RES_SIZE + REQ_SIZE, &busaddr);
757
758 if (!hostdata->res){
759 printk("qlogicfc%d : could not allocate memory for request and response queue.\n", hosts);
760 scsi_unregister(host);
761 continue;
762 }
763 hostdata->req = hostdata->res + (RES_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN;
764 hostdata->queued = 0;
765 /* set up the control block */
766 hostdata->control_block.version = 0x1;
767 hostdata->control_block.firm_opts = cpu_to_le16(0x800e);
768 hostdata->control_block.max_frame_len = cpu_to_le16(2048);
769 hostdata->control_block.max_iocb = cpu_to_le16(QLOGICFC_REQ_QUEUE_LEN);
770 hostdata->control_block.exec_throttle = cpu_to_le16(QLOGICFC_CMD_PER_LUN);
771 hostdata->control_block.retry_delay = 5;
772 hostdata->control_block.retry_cnt = 1;
773 hostdata->control_block.node_name[0] = cpu_to_le16(0x0020);
774 hostdata->control_block.node_name[1] = cpu_to_le16(0xE000);
775 hostdata->control_block.node_name[2] = cpu_to_le16(0x008B);
776 hostdata->control_block.node_name[3] = cpu_to_le16(0x0000);
777 hostdata->control_block.hard_addr = cpu_to_le16(0x0003);
778 hostdata->control_block.req_queue_len = cpu_to_le16(QLOGICFC_REQ_QUEUE_LEN + 1);
779 hostdata->control_block.res_queue_len = cpu_to_le16(RES_QUEUE_LEN + 1);
780 hostdata->control_block.res_queue_addr_lo = cpu_to_le32(pci64_dma_lo32(busaddr));
781 hostdata->control_block.res_queue_addr_high = cpu_to_le32(pci64_dma_hi32(busaddr));
782 hostdata->control_block.req_queue_addr_lo = cpu_to_le32(pci64_dma_lo32(busaddr + RES_SIZE));
783 hostdata->control_block.req_queue_addr_high = cpu_to_le32(pci64_dma_hi32(busaddr + RES_SIZE));
784
785
786 hostdata->control_block.add_firm_opts |= cpu_to_le16(CONNECTION_PREFERENCE<<4);
787 hostdata->adapter_state = AS_LOOP_DOWN;
788 hostdata->explore_timer.data = 1;
789 hostdata->host_id = hosts;
790
791 if (isp2x00_init(host) || isp2x00_reset_hardware(host)) {
792 pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
793 scsi_unregister(host);
794 continue;
795 }
796 host->this_id = 0;
797
798 if (request_irq(host->irq, do_isp2x00_intr_handler, SA_INTERRUPT | SA_SHIRQ, "qlogicfc", host)) {
799 printk("qlogicfc%d : interrupt %d already in use\n",
800 hostdata->host_id, host->irq);
801 pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
802 scsi_unregister(host);
803 continue;
804 }
805 if (!request_region(host->io_port, 0xff, "qlogicfc")) {
806 printk("qlogicfc%d : i/o region 0x%lx-0x%lx already "
807 "in use\n",
808 hostdata->host_id, host->io_port, host->io_port + 0xff);
809 free_irq(host->irq, host);
810 pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
811 scsi_unregister(host);
812 continue;
813 }
814
815 outw(0x0, host->io_port + PCI_SEMAPHORE);
816 outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
817 isp2x00_enable_irqs(host);
818 /* wait for the loop to come up */
819 for (wait_time = jiffies + 10 * HZ; time_before(jiffies, wait_time) && hostdata->adapter_state == AS_LOOP_DOWN;) {
820 barrier();
821 cpu_relax();
822 }
823 if (hostdata->adapter_state == AS_LOOP_DOWN) {
824 printk("qlogicfc%d : link is not up\n", hostdata->host_id);
825 }
826 hosts++;
827 hostdata->explore_timer.data = 0;
828 }
829 }
830
831
832 /* this busy loop should not be needed but the isp2x00 seems to need
833 some time before recognizing it is attached to a fabric */
834
835 #if ISP2x00_FABRIC
836 if (hosts) {
837 for (wait_time = jiffies + 5 * HZ; time_before(jiffies, wait_time);) {
838 barrier();
839 cpu_relax();
840 }
841 }
842 #endif
843
844 LEAVE("isp2x00_detect");
845
846 return hosts;
847 }
848
849
850 static int isp2x00_make_portdb(struct Scsi_Host *host)
851 {
852
853 short param[8];
854 int i, j;
855 struct isp2x00_hostdata *hostdata;
856
857 isp2x00_disable_irqs(host);
858
859 hostdata = (struct isp2x00_hostdata *) host->hostdata;
860 memset(hostdata->tempmap, 0, sizeof(hostdata->tempmap));
861
862 #if ISP2x00_FABRIC
863 for (i = 0x81; i < QLOGICFC_MAX_ID; i++) {
864 param[0] = MBOX_PORT_LOGOUT;
865 param[1] = i << 8;
866 param[2] = 0;
867 param[3] = 0;
868
869 isp2x00_mbox_command(host, param);
870
871 if (param[0] != MBOX_COMMAND_COMPLETE) {
872
873 DEBUG_FABRIC(printk("qlogicfc%d : logout failed %x %x\n", hostdata->host_id, i, param[0]));
874 }
875 }
876 #endif
877
878
879 param[0] = MBOX_GET_INIT_SCSI_ID;
880
881 isp2x00_mbox_command(host, param);
882
883 if (param[0] == MBOX_COMMAND_COMPLETE) {
884 hostdata->port_id = ((u_int) param[3]) << 16;
885 hostdata->port_id |= param[2];
886 hostdata->tempmap[0].loop_id = param[1];
887 hostdata->tempmap[0].wwn = hostdata->wwn;
888 }
889 else {
890 printk("qlogicfc%d : error getting scsi id.\n", hostdata->host_id);
891 }
892
893 for (i = 0; i <=QLOGICFC_MAX_ID; i++)
894 hostdata->tempmap[i].loop_id = hostdata->tempmap[0].loop_id;
895
896 for (i = 0, j = 1; i <= QLOGICFC_MAX_LOOP_ID; i++) {
897 param[0] = MBOX_GET_PORT_NAME;
898 param[1] = (i << 8) & 0xff00;
899
900 isp2x00_mbox_command(host, param);
901
902 if (param[0] == MBOX_COMMAND_COMPLETE) {
903 hostdata->tempmap[j].loop_id = i;
904 hostdata->tempmap[j].wwn = ((u64) (param[2] & 0xff)) << 56;
905 hostdata->tempmap[j].wwn |= ((u64) ((param[2] >> 8) & 0xff)) << 48;
906 hostdata->tempmap[j].wwn |= ((u64) (param[3] & 0xff)) << 40;
907 hostdata->tempmap[j].wwn |= ((u64) ((param[3] >> 8) & 0xff)) << 32;
908 hostdata->tempmap[j].wwn |= ((u64) (param[6] & 0xff)) << 24;
909 hostdata->tempmap[j].wwn |= ((u64) ((param[6] >> 8) & 0xff)) << 16;
910 hostdata->tempmap[j].wwn |= ((u64) (param[7] & 0xff)) << 8;
911 hostdata->tempmap[j].wwn |= ((u64) ((param[7] >> 8) & 0xff));
912
913 j++;
914
915 }
916 }
917
918
919 #if ISP2x00_FABRIC
920 isp2x00_init_fabric(host, hostdata->tempmap, j);
921 #endif
922
923 for (i = 0; i <= QLOGICFC_MAX_ID; i++) {
924 if (hostdata->tempmap[i].wwn != hostdata->port_db[i].wwn) {
925 for (j = 0; j <= QLOGICFC_MAX_ID; j++) {
926 if (hostdata->tempmap[j].wwn == hostdata->port_db[i].wwn) {
927 hostdata->port_db[i].loop_id = hostdata->tempmap[j].loop_id;
928 break;
929 }
930 }
931 if (j == QLOGICFC_MAX_ID + 1)
932 hostdata->port_db[i].loop_id = hostdata->tempmap[0].loop_id;
933
934 for (j = 0; j <= QLOGICFC_MAX_ID; j++) {
935 if (hostdata->port_db[j].wwn == hostdata->tempmap[i].wwn || !hostdata->port_db[j].wwn) {
936 break;
937 }
938 }
939 if (j == QLOGICFC_MAX_ID + 1)
940 printk("qlogicfc%d : Too many scsi devices, no more room in port map.\n", hostdata->host_id);
941 if (!hostdata->port_db[j].wwn) {
942 hostdata->port_db[j].loop_id = hostdata->tempmap[i].loop_id;
943 hostdata->port_db[j].wwn = hostdata->tempmap[i].wwn;
944 }
945 } else
946 hostdata->port_db[i].loop_id = hostdata->tempmap[i].loop_id;
947
948 }
949
950 isp2x00_enable_irqs(host);
951
952 return 0;
953 }
954
955
956 #if ISP2x00_FABRIC
957
958 #define FABRIC_PORT 0x7e
959 #define FABRIC_CONTROLLER 0x7f
960 #define FABRIC_SNS 0x80
961
962 int isp2x00_init_fabric(struct Scsi_Host *host, struct id_name_map *port_db, int cur_scsi_id)
963 {
964
965 u_short param[8];
966 u64 wwn;
967 int done = 0;
968 u_short loop_id = 0x81;
969 u_short scsi_id = cur_scsi_id;
970 u_int port_id;
971 struct sns_cb *req;
972 u_char *sns_response;
973 dma_addr_t busaddr;
974 struct isp2x00_hostdata *hostdata;
975
976 hostdata = (struct isp2x00_hostdata *) host->hostdata;
977
978 DEBUG_FABRIC(printk("qlogicfc%d : Checking for a fabric.\n", hostdata->host_id));
979 param[0] = MBOX_GET_PORT_NAME;
980 param[1] = (u16)FABRIC_PORT << 8;
981
982 isp2x00_mbox_command(host, param);
983
984 if (param[0] != MBOX_COMMAND_COMPLETE) {
985 DEBUG_FABRIC(printk("qlogicfc%d : fabric check result %x\n", hostdata->host_id, param[0]));
986 return 0;
987 }
988 printk("qlogicfc%d : Fabric found.\n", hostdata->host_id);
989
990 req = (struct sns_cb *)pci_alloc_consistent(hostdata->pci_dev, sizeof(*req) + 608, &busaddr);
991
992 if (!req){
993 printk("qlogicfc%d : Could not allocate DMA resources for fabric initialization\n", hostdata->host_id);
994 return 0;
995 }
996 sns_response = (u_char *)(req + 1);
997
998 if (hostdata->adapter_state & AS_REDO_LOOP_PORTDB){
999 memset(req, 0, sizeof(*req));
1000
1001 req->len = cpu_to_le16(8);
1002 req->response_low = cpu_to_le32(pci64_dma_lo32(busaddr + sizeof(*req)));
1003 req->response_high = cpu_to_le32(pci64_dma_hi32(busaddr + sizeof(*req)));
1004 req->sub_len = cpu_to_le16(22);
1005 req->data[0] = 0x17;
1006 req->data[1] = 0x02;
1007 req->data[8] = (u_char) (hostdata->port_id & 0xff);
1008 req->data[9] = (u_char) (hostdata->port_id >> 8 & 0xff);
1009 req->data[10] = (u_char) (hostdata->port_id >> 16 & 0xff);
1010 req->data[13] = 0x01;
1011 param[0] = MBOX_SEND_SNS;
1012 param[1] = 30;
1013 param[2] = pci64_dma_lo32(busaddr) >> 16;
1014 param[3] = pci64_dma_lo32(busaddr);
1015 param[6] = pci64_dma_hi32(busaddr) >> 16;
1016 param[7] = pci64_dma_hi32(busaddr);
1017
1018 isp2x00_mbox_command(host, param);
1019
1020 if (param[0] != MBOX_COMMAND_COMPLETE)
1021 printk("qlogicfc%d : error sending RFC-4\n", hostdata->host_id);
1022 }
1023
1024 port_id = hostdata->port_id;
1025 while (!done) {
1026 memset(req, 0, sizeof(*req));
1027
1028 req->len = cpu_to_le16(304);
1029 req->response_low = cpu_to_le32(pci64_dma_lo32(busaddr + sizeof(*req)));
1030 req->response_high = cpu_to_le32(pci64_dma_hi32(busaddr + sizeof(*req)));
1031 req->sub_len = cpu_to_le16(6);
1032 req->data[0] = 0x00;
1033 req->data[1] = 0x01;
1034 req->data[8] = (u_char) (port_id & 0xff);
1035 req->data[9] = (u_char) (port_id >> 8 & 0xff);
1036 req->data[10] = (u_char) (port_id >> 16 & 0xff);
1037
1038 param[0] = MBOX_SEND_SNS;
1039 param[1] = 14;
1040 param[2] = pci64_dma_lo32(busaddr) >> 16;
1041 param[3] = pci64_dma_lo32(busaddr);
1042 param[6] = pci64_dma_hi32(busaddr) >> 16;
1043 param[7] = pci64_dma_hi32(busaddr);
1044
1045 isp2x00_mbox_command(host, param);
1046
1047 if (param[0] == MBOX_COMMAND_COMPLETE) {
1048 DEBUG_FABRIC(printk("qlogicfc%d : found node %02x%02x%02x%02x%02x%02x%02x%02x ", hostdata->host_id, sns_response[20], sns_response[21], sns_response[22], sns_response[23], sns_response[24], sns_response[25], sns_response[26], sns_response[27]));
1049 DEBUG_FABRIC(printk(" port id: %02x%02x%02x\n", sns_response[17], sns_response[18], sns_response[19]));
1050 port_id = ((u_int) sns_response[17]) << 16;
1051 port_id |= ((u_int) sns_response[18]) << 8;
1052 port_id |= ((u_int) sns_response[19]);
1053 wwn = ((u64) sns_response[20]) << 56;
1054 wwn |= ((u64) sns_response[21]) << 48;
1055 wwn |= ((u64) sns_response[22]) << 40;
1056 wwn |= ((u64) sns_response[23]) << 32;
1057 wwn |= ((u64) sns_response[24]) << 24;
1058 wwn |= ((u64) sns_response[25]) << 16;
1059 wwn |= ((u64) sns_response[26]) << 8;
1060 wwn |= ((u64) sns_response[27]);
1061 if (hostdata->port_id >> 8 != port_id >> 8) {
1062 DEBUG_FABRIC(printk("qlogicfc%d : adding a fabric port: %x\n", hostdata->host_id, port_id));
1063 param[0] = MBOX_PORT_LOGIN;
1064 param[1] = loop_id << 8;
1065 param[2] = (u_short) (port_id >> 16);
1066 param[3] = (u_short) (port_id);
1067
1068 isp2x00_mbox_command(host, param);
1069
1070 if (param[0] == MBOX_COMMAND_COMPLETE) {
1071 port_db[scsi_id].wwn = wwn;
1072 port_db[scsi_id].loop_id = loop_id;
1073 loop_id++;
1074 scsi_id++;
1075 } else {
1076 printk("qlogicfc%d : Error performing port login %x\n", hostdata->host_id, param[0]);
1077 DEBUG_FABRIC(printk("qlogicfc%d : loop_id: %x\n", hostdata->host_id, loop_id));
1078 param[0] = MBOX_PORT_LOGOUT;
1079 param[1] = loop_id << 8;
1080 param[2] = 0;
1081 param[3] = 0;
1082
1083 isp2x00_mbox_command(host, param);
1084
1085 }
1086
1087 }
1088 if (hostdata->port_id == port_id)
1089 done = 1;
1090 } else {
1091 printk("qlogicfc%d : Get All Next failed %x.\n", hostdata->host_id, param[0]);
1092 pci_free_consistent(hostdata->pci_dev, sizeof(*req) + 608, req, busaddr);
1093 return 0;
1094 }
1095 }
1096
1097 pci_free_consistent(hostdata->pci_dev, sizeof(*req) + 608, req, busaddr);
1098 return 1;
1099 }
1100
1101 #endif /* ISP2x00_FABRIC */
1102
1103
1104 static int isp2x00_release(struct Scsi_Host *host)
1105 {
1106 struct isp2x00_hostdata *hostdata;
1107 dma_addr_t busaddr;
1108
1109 ENTER("isp2x00_release");
1110
1111 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1112
1113 outw(0x0, host->io_port + PCI_INTER_CTL);
1114 free_irq(host->irq, host);
1115
1116 release_region(host->io_port, 0xff);
1117
1118 busaddr = pci64_dma_build(le32_to_cpu(hostdata->control_block.res_queue_addr_high),
1119 le32_to_cpu(hostdata->control_block.res_queue_addr_lo));
1120 pci_free_consistent(hostdata->pci_dev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
1121
1122 LEAVE("isp2x00_release");
1123
1124 return 0;
1125 }
1126
1127
1128 static const char *isp2x00_info(struct Scsi_Host *host)
1129 {
1130 static char buf[80];
1131 struct isp2x00_hostdata *hostdata;
1132 ENTER("isp2x00_info");
1133
1134 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1135 sprintf(buf,
1136 "QLogic ISP%04x SCSI on PCI bus %02x device %02x irq %d base 0x%lx",
1137 hostdata->pci_dev->device, hostdata->pci_dev->bus->number, hostdata->pci_dev->devfn, host->irq,
1138 host->io_port);
1139
1140
1141 LEAVE("isp2x00_info");
1142
1143 return buf;
1144 }
1145
1146
1147 /*
1148 * The middle SCSI layer ensures that queuecommand never gets invoked
1149 * concurrently with itself or the interrupt handler (though the
1150 * interrupt handler may call this routine as part of
1151 * request-completion handling).
1152 */
1153 static int isp2x00_queuecommand(Scsi_Cmnd * Cmnd, void (*done) (Scsi_Cmnd *))
1154 {
1155 int i, sg_count, n, num_free;
1156 u_int in_ptr, out_ptr;
1157 struct dataseg *ds;
1158 struct scatterlist *sg;
1159 struct Command_Entry *cmd;
1160 struct Continuation_Entry *cont;
1161 struct Scsi_Host *host;
1162 struct isp2x00_hostdata *hostdata;
1163
1164 ENTER("isp2x00_queuecommand");
1165
1166 host = Cmnd->device->host;
1167 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1168 Cmnd->scsi_done = done;
1169
1170 DEBUG(isp2x00_print_scsi_cmd(Cmnd));
1171
1172 if (hostdata->adapter_state & AS_REDO_FABRIC_PORTDB || hostdata->adapter_state & AS_REDO_LOOP_PORTDB) {
1173 isp2x00_make_portdb(host);
1174 hostdata->adapter_state = AS_LOOP_GOOD;
1175 printk("qlogicfc%d : Port Database\n", hostdata->host_id);
1176 for (i = 0; hostdata->port_db[i].wwn != 0; i++) {
1177 printk("wwn: %08x%08x scsi_id: %x loop_id: ", (u_int) (hostdata->port_db[i].wwn >> 32), (u_int) hostdata->port_db[i].wwn, i);
1178 if (hostdata->port_db[i].loop_id != hostdata->port_db[0].loop_id || i == 0)
1179 printk("%x", hostdata->port_db[i].loop_id);
1180 else
1181 printk("Not Available");
1182 printk("\n");
1183 }
1184 }
1185 if (hostdata->adapter_state == AS_FIRMWARE_DEAD) {
1186 printk("qlogicfc%d : The firmware is dead, just return.\n", hostdata->host_id);
1187 host->max_id = 0;
1188 return 0;
1189 }
1190
1191 out_ptr = inw(host->io_port + MBOX4);
1192 in_ptr = hostdata->req_in_ptr;
1193
1194 DEBUG(printk("qlogicfc%d : request queue depth %d\n", hostdata->host_id,
1195 REQ_QUEUE_DEPTH(in_ptr, out_ptr)));
1196
1197 cmd = (struct Command_Entry *) &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
1198 in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
1199 if (in_ptr == out_ptr) {
1200 DEBUG(printk("qlogicfc%d : request queue overflow\n", hostdata->host_id));
1201 return 1;
1202 }
1203 if (hostdata->send_marker) {
1204 struct Marker_Entry *marker;
1205
1206 TRACE("queue marker", in_ptr, 0);
1207
1208 DEBUG(printk("qlogicfc%d : adding marker entry\n", hostdata->host_id));
1209 marker = (struct Marker_Entry *) cmd;
1210 memset(marker, 0, sizeof(struct Marker_Entry));
1211
1212 marker->hdr.entry_type = ENTRY_MARKER;
1213 marker->hdr.entry_cnt = 1;
1214 marker->modifier = SYNC_ALL;
1215
1216 hostdata->send_marker = 0;
1217
1218 if (((in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN) == out_ptr) {
1219 outw(in_ptr, host->io_port + MBOX4);
1220 hostdata->req_in_ptr = in_ptr;
1221 DEBUG(printk("qlogicfc%d : request queue overflow\n", hostdata->host_id));
1222 return 1;
1223 }
1224 cmd = (struct Command_Entry *) &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
1225 in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
1226 }
1227 TRACE("queue command", in_ptr, Cmnd);
1228
1229 memset(cmd, 0, sizeof(struct Command_Entry));
1230
1231 /* find a free handle mapping slot */
1232 for (i = in_ptr; i != (in_ptr - 1) && hostdata->handle_ptrs[i]; i = ((i + 1) % (QLOGICFC_REQ_QUEUE_LEN + 1)));
1233
1234 if (!hostdata->handle_ptrs[i]) {
1235 cmd->handle = cpu_to_le32(i);
1236 hostdata->handle_ptrs[i] = Cmnd;
1237 hostdata->handle_serials[i] = Cmnd->serial_number;
1238 } else {
1239 printk("qlogicfc%d : no handle slots, this should not happen.\n", hostdata->host_id);
1240 printk("hostdata->queued is %x, in_ptr: %x\n", hostdata->queued, in_ptr);
1241 for (i = 0; i <= QLOGICFC_REQ_QUEUE_LEN; i++){
1242 if (!hostdata->handle_ptrs[i]){
1243 printk("slot %d has %p\n", i, hostdata->handle_ptrs[i]);
1244 }
1245 }
1246 return 1;
1247 }
1248
1249 cmd->hdr.entry_type = ENTRY_COMMAND;
1250 cmd->hdr.entry_cnt = 1;
1251 cmd->target_lun = Cmnd->device->lun;
1252 cmd->expanded_lun = cpu_to_le16(Cmnd->device->lun);
1253 #if ISP2x00_PORTDB
1254 cmd->target_id = hostdata->port_db[Cmnd->device->id].loop_id;
1255 #else
1256 cmd->target_id = Cmnd->target;
1257 #endif
1258 cmd->total_byte_cnt = cpu_to_le32(Cmnd->request_bufflen);
1259 cmd->time_out = 0;
1260 memcpy(cmd->cdb, Cmnd->cmnd, Cmnd->cmd_len);
1261
1262 if (Cmnd->use_sg) {
1263 sg = (struct scatterlist *) Cmnd->request_buffer;
1264 sg_count = pci_map_sg(hostdata->pci_dev, sg, Cmnd->use_sg, scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1265 cmd->segment_cnt = cpu_to_le16(sg_count);
1266 ds = cmd->dataseg;
1267 /* fill in first two sg entries: */
1268 n = sg_count;
1269 if (n > DATASEGS_PER_COMMAND)
1270 n = DATASEGS_PER_COMMAND;
1271
1272 for (i = 0; i < n; i++) {
1273 ds[i].d_base = cpu_to_le32(pci64_dma_lo32(sg_dma_address(sg)));
1274 ds[i].d_base_hi = cpu_to_le32(pci64_dma_hi32(sg_dma_address(sg)));
1275 ds[i].d_count = cpu_to_le32(sg_dma_len(sg));
1276 ++sg;
1277 }
1278 sg_count -= DATASEGS_PER_COMMAND;
1279
1280 while (sg_count > 0) {
1281 ++cmd->hdr.entry_cnt;
1282 cont = (struct Continuation_Entry *)
1283 &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
1284 memset(cont, 0, sizeof(struct Continuation_Entry));
1285 in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
1286 if (in_ptr == out_ptr) {
1287 DEBUG(printk("qlogicfc%d : unexpected request queue overflow\n", hostdata->host_id));
1288 return 1;
1289 }
1290 TRACE("queue continuation", in_ptr, 0);
1291 cont->hdr.entry_type = ENTRY_CONTINUATION;
1292 ds = cont->dataseg;
1293 n = sg_count;
1294 if (n > DATASEGS_PER_CONT)
1295 n = DATASEGS_PER_CONT;
1296 for (i = 0; i < n; ++i) {
1297 ds[i].d_base = cpu_to_le32(pci64_dma_lo32(sg_dma_address(sg)));
1298 ds[i].d_base_hi = cpu_to_le32(pci64_dma_hi32(sg_dma_address(sg)));
1299 ds[i].d_count = cpu_to_le32(sg_dma_len(sg));
1300 ++sg;
1301 }
1302 sg_count -= n;
1303 }
1304 } else if (Cmnd->request_bufflen && Cmnd->sc_data_direction != PCI_DMA_NONE) {
1305 struct page *page = virt_to_page(Cmnd->request_buffer);
1306 unsigned long offset = offset_in_page(Cmnd->request_buffer);
1307 dma_addr_t busaddr = pci_map_page(hostdata->pci_dev,
1308 page, offset,
1309 Cmnd->request_bufflen,
1310 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1311 Cmnd->SCp.dma_handle = busaddr;
1312
1313 cmd->dataseg[0].d_base = cpu_to_le32(pci64_dma_lo32(busaddr));
1314 cmd->dataseg[0].d_base_hi = cpu_to_le32(pci64_dma_hi32(busaddr));
1315 cmd->dataseg[0].d_count = cpu_to_le32(Cmnd->request_bufflen);
1316 cmd->segment_cnt = cpu_to_le16(1);
1317 } else {
1318 cmd->dataseg[0].d_base = 0;
1319 cmd->dataseg[0].d_base_hi = 0;
1320 cmd->segment_cnt = cpu_to_le16(1); /* Shouldn't this be 0? */
1321 }
1322
1323 if (Cmnd->sc_data_direction == SCSI_DATA_WRITE)
1324 cmd->control_flags = cpu_to_le16(CFLAG_WRITE);
1325 else
1326 cmd->control_flags = cpu_to_le16(CFLAG_READ);
1327
1328 if (Cmnd->device->tagged_supported) {
1329 if ((jiffies - hostdata->tag_ages[Cmnd->device->id]) > (2 * ISP_TIMEOUT)) {
1330 cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG);
1331 hostdata->tag_ages[Cmnd->device->id] = jiffies;
1332 } else
1333 switch (Cmnd->tag) {
1334 case HEAD_OF_QUEUE_TAG:
1335 cmd->control_flags |= cpu_to_le16(CFLAG_HEAD_TAG);
1336 break;
1337 case ORDERED_QUEUE_TAG:
1338 cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG);
1339 break;
1340 default:
1341 cmd->control_flags |= cpu_to_le16(CFLAG_SIMPLE_TAG);
1342 break;
1343 }
1344 }
1345 /*
1346 * TEST_UNIT_READY commands from scsi_scan will fail due to "overlapped
1347 * commands attempted" unless we setup at least a simple queue (midlayer
1348 * will embelish this once it can do an INQUIRY command to the device)
1349 */
1350 else
1351 cmd->control_flags |= cpu_to_le16(CFLAG_SIMPLE_TAG);
1352 outw(in_ptr, host->io_port + MBOX4);
1353 hostdata->req_in_ptr = in_ptr;
1354
1355 hostdata->queued++;
1356
1357 num_free = QLOGICFC_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr);
1358 num_free = (num_free > 2) ? num_free - 2 : 0;
1359 host->can_queue = host->host_busy + num_free;
1360 if (host->can_queue > QLOGICFC_REQ_QUEUE_LEN)
1361 host->can_queue = QLOGICFC_REQ_QUEUE_LEN;
1362 host->sg_tablesize = QLOGICFC_MAX_SG(num_free);
1363
1364 LEAVE("isp2x00_queuecommand");
1365
1366 return 0;
1367 }
1368
1369
1370 /* we have received an event, such as a lip or an RSCN, which may mean that
1371 * our port database is incorrect so the port database must be recreated.
1372 */
1373 static void redo_port_db(unsigned long arg)
1374 {
1375
1376 struct Scsi_Host * host = (struct Scsi_Host *) arg;
1377 struct isp2x00_hostdata * hostdata;
1378 unsigned long flags;
1379 int i;
1380
1381 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1382 hostdata->explore_timer.data = 0;
1383 del_timer(&hostdata->explore_timer);
1384
1385 spin_lock_irqsave(host->host_lock, flags);
1386
1387 if (hostdata->adapter_state & AS_REDO_FABRIC_PORTDB || hostdata->adapter_state & AS_REDO_LOOP_PORTDB) {
1388 isp2x00_make_portdb(host);
1389 printk("qlogicfc%d : Port Database\n", hostdata->host_id);
1390 for (i = 0; hostdata->port_db[i].wwn != 0; i++) {
1391 printk("wwn: %08x%08x scsi_id: %x loop_id: ", (u_int) (hostdata->port_db[i].wwn >> 32), (u_int) hostdata->port_db[i].wwn, i);
1392 if (hostdata->port_db[i].loop_id != hostdata->port_db[0].loop_id || i == 0)
1393 printk("%x", hostdata->port_db[i].loop_id);
1394 else
1395 printk("Not Available");
1396 printk("\n");
1397 }
1398
1399 for (i = 0; i < QLOGICFC_REQ_QUEUE_LEN; i++){
1400 if (hostdata->handle_ptrs[i] && (hostdata->port_db[hostdata->handle_ptrs[i]->device->id].loop_id > QLOGICFC_MAX_LOOP_ID || hostdata->adapter_state & AS_REDO_LOOP_PORTDB)){
1401 if (hostdata->port_db[hostdata->handle_ptrs[i]->device->id].loop_id != hostdata->port_db[0].loop_id){
1402 Scsi_Cmnd *Cmnd = hostdata->handle_ptrs[i];
1403
1404 if (Cmnd->use_sg)
1405 pci_unmap_sg(hostdata->pci_dev,
1406 (struct scatterlist *)Cmnd->buffer,
1407 Cmnd->use_sg,
1408 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1409 else if (Cmnd->request_bufflen &&
1410 Cmnd->sc_data_direction != PCI_DMA_NONE) {
1411 pci_unmap_page(hostdata->pci_dev,
1412 Cmnd->SCp.dma_handle,
1413 Cmnd->request_bufflen,
1414 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1415 }
1416
1417 hostdata->handle_ptrs[i]->result = DID_SOFT_ERROR << 16;
1418
1419 if (hostdata->handle_ptrs[i]->scsi_done){
1420 (*hostdata->handle_ptrs[i]->scsi_done) (hostdata->handle_ptrs[i]);
1421 }
1422 else printk("qlogicfc%d : done is null?\n", hostdata->host_id);
1423 hostdata->handle_ptrs[i] = NULL;
1424 hostdata->handle_serials[i] = 0;
1425 }
1426 }
1427 }
1428
1429 hostdata->adapter_state = AS_LOOP_GOOD;
1430 }
1431
1432 spin_unlock_irqrestore(host->host_lock, flags);
1433
1434 }
1435
1436 #define ASYNC_EVENT_INTERRUPT 0x01
1437
1438 irqreturn_t do_isp2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
1439 {
1440 struct Scsi_Host *host = dev_id;
1441 unsigned long flags;
1442
1443 spin_lock_irqsave(host->host_lock, flags);
1444 isp2x00_intr_handler(irq, dev_id, regs);
1445 spin_unlock_irqrestore(host->host_lock, flags);
1446
1447 return IRQ_HANDLED;
1448 }
1449
1450 void isp2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
1451 {
1452 Scsi_Cmnd *Cmnd;
1453 struct Status_Entry *sts;
1454 struct Scsi_Host *host = dev_id;
1455 struct isp2x00_hostdata *hostdata;
1456 u_int in_ptr, out_ptr, handle, num_free;
1457 u_short status;
1458
1459 ENTER_INTR("isp2x00_intr_handler");
1460
1461 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1462
1463 DEBUG_INTR(printk("qlogicfc%d : interrupt on line %d\n", hostdata->host_id, irq));
1464
1465 if (!(inw(host->io_port + PCI_INTER_STS) & 0x08)) {
1466 /* spurious interrupts can happen legally */
1467 DEBUG_INTR(printk("qlogicfc%d : got spurious interrupt\n", hostdata->host_id));
1468 return;
1469 }
1470 in_ptr = inw(host->io_port + MBOX5);
1471 out_ptr = hostdata->res_out_ptr;
1472
1473 if ((inw(host->io_port + PCI_SEMAPHORE) & ASYNC_EVENT_INTERRUPT)) {
1474 status = inw(host->io_port + MBOX0);
1475
1476 DEBUG_INTR(printk("qlogicfc%d : mbox completion status: %x\n",
1477 hostdata->host_id, status));
1478
1479 switch (status) {
1480 case LOOP_UP:
1481 case POINT_TO_POINT_UP:
1482 printk("qlogicfc%d : Link is Up\n", hostdata->host_id);
1483 hostdata->adapter_state = AS_REDO_FABRIC_PORTDB | AS_REDO_LOOP_PORTDB;
1484 break;
1485 case LOOP_DOWN:
1486 printk("qlogicfc%d : Link is Down\n", hostdata->host_id);
1487 hostdata->adapter_state = AS_LOOP_DOWN;
1488 break;
1489 case CONNECTION_MODE:
1490 printk("received CONNECTION_MODE irq %x\n", inw(host->io_port + MBOX1));
1491 break;
1492 case CHANGE_NOTIFICATION:
1493 printk("qlogicfc%d : RSCN Received\n", hostdata->host_id);
1494 if (hostdata->adapter_state == AS_LOOP_GOOD)
1495 hostdata->adapter_state = AS_REDO_FABRIC_PORTDB;
1496 break;
1497 case LIP_OCCURRED:
1498 case LIP_RECEIVED:
1499 printk("qlogicfc%d : Loop Reinitialized\n", hostdata->host_id);
1500 if (hostdata->adapter_state == AS_LOOP_GOOD)
1501 hostdata->adapter_state = AS_REDO_LOOP_PORTDB;
1502 break;
1503 case SYSTEM_ERROR:
1504 printk("qlogicfc%d : The firmware just choked.\n", hostdata->host_id);
1505 hostdata->adapter_state = AS_FIRMWARE_DEAD;
1506 break;
1507 case SCSI_COMMAND_COMPLETE:
1508 handle = inw(host->io_port + MBOX1) | (inw(host->io_port + MBOX2) << 16);
1509 Cmnd = hostdata->handle_ptrs[handle];
1510 hostdata->handle_ptrs[handle] = NULL;
1511 hostdata->handle_serials[handle] = 0;
1512 hostdata->queued--;
1513 if (Cmnd != NULL) {
1514 if (Cmnd->use_sg)
1515 pci_unmap_sg(hostdata->pci_dev,
1516 (struct scatterlist *)Cmnd->buffer,
1517 Cmnd->use_sg,
1518 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1519 else if (Cmnd->request_bufflen &&
1520 Cmnd->sc_data_direction != PCI_DMA_NONE)
1521 pci_unmap_page(hostdata->pci_dev,
1522 Cmnd->SCp.dma_handle,
1523 Cmnd->request_bufflen,
1524 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1525 Cmnd->result = 0x0;
1526 (*Cmnd->scsi_done) (Cmnd);
1527 } else
1528 printk("qlogicfc%d.c : got a null value out of handle_ptrs, this sucks\n", hostdata->host_id);
1529 break;
1530 case MBOX_COMMAND_COMPLETE:
1531 case INVALID_COMMAND:
1532 case HOST_INTERFACE_ERROR:
1533 case TEST_FAILED:
1534 case COMMAND_ERROR:
1535 case COMMAND_PARAM_ERROR:
1536 case PORT_ID_USED:
1537 case LOOP_ID_USED:
1538 case ALL_IDS_USED:
1539 hostdata->mbox_done = 1;
1540 outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
1541 return;
1542 default:
1543 printk("qlogicfc%d : got an unknown status? %x\n", hostdata->host_id, status);
1544 }
1545 if ((hostdata->adapter_state & AS_REDO_LOOP_PORTDB || hostdata->adapter_state & AS_REDO_FABRIC_PORTDB) && hostdata->explore_timer.data == 0){
1546 hostdata->explore_timer.function = redo_port_db;
1547 hostdata->explore_timer.data = (unsigned long)host;
1548 hostdata->explore_timer.expires = jiffies + (HZ/4);
1549 init_timer(&hostdata->explore_timer);
1550 add_timer(&hostdata->explore_timer);
1551 }
1552 outw(0x0, host->io_port + PCI_SEMAPHORE);
1553 } else {
1554 DEBUG_INTR(printk("qlogicfc%d : response queue update\n", hostdata->host_id));
1555 DEBUG_INTR(printk("qlogicfc%d : response queue depth %d\n", hostdata->host_id, RES_QUEUE_DEPTH(in_ptr, out_ptr)));
1556
1557 while (out_ptr != in_ptr) {
1558 unsigned le_hand;
1559 sts = (struct Status_Entry *) &hostdata->res[out_ptr*QUEUE_ENTRY_LEN];
1560 out_ptr = (out_ptr + 1) & RES_QUEUE_LEN;
1561
1562 TRACE("done", out_ptr, Cmnd);
1563 DEBUG_INTR(isp2x00_print_status_entry(sts));
1564 le_hand = le32_to_cpu(sts->handle);
1565 if (sts->hdr.entry_type == ENTRY_STATUS && (Cmnd = hostdata->handle_ptrs[le_hand])) {
1566 Cmnd->result = isp2x00_return_status(Cmnd, sts);
1567 hostdata->queued--;
1568
1569 if (Cmnd->use_sg)
1570 pci_unmap_sg(hostdata->pci_dev,
1571 (struct scatterlist *)Cmnd->buffer, Cmnd->use_sg,
1572 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1573 else if (Cmnd->request_bufflen && Cmnd->sc_data_direction != PCI_DMA_NONE)
1574 pci_unmap_page(hostdata->pci_dev,
1575 Cmnd->SCp.dma_handle,
1576 Cmnd->request_bufflen,
1577 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1578
1579 /*
1580 * if any of the following are true we do not
1581 * call scsi_done. if the status is CS_ABORTED
1582 * we don't have to call done because the upper
1583 * level should already know its aborted.
1584 */
1585 if (hostdata->handle_serials[le_hand] != Cmnd->serial_number
1586 || le16_to_cpu(sts->completion_status) == CS_ABORTED){
1587 hostdata->handle_serials[le_hand] = 0;
1588 hostdata->handle_ptrs[le_hand] = NULL;
1589 outw(out_ptr, host->io_port + MBOX5);
1590 continue;
1591 }
1592 /*
1593 * if we get back an error indicating the port
1594 * is not there or if the link is down and
1595 * this is a device that used to be there
1596 * allow the command to timeout.
1597 * the device may well be back in a couple of
1598 * seconds.
1599 */
1600 if ((hostdata->adapter_state == AS_LOOP_DOWN || sts->completion_status == cpu_to_le16(CS_PORT_UNAVAILABLE) || sts->completion_status == cpu_to_le16(CS_PORT_LOGGED_OUT) || sts->completion_status == cpu_to_le16(CS_PORT_CONFIG_CHANGED)) && hostdata->port_db[Cmnd->device->id].wwn){
1601 outw(out_ptr, host->io_port + MBOX5);
1602 continue;
1603 }
1604 } else {
1605 outw(out_ptr, host->io_port + MBOX5);
1606 continue;
1607 }
1608
1609 hostdata->handle_ptrs[le_hand] = NULL;
1610
1611 if (sts->completion_status == cpu_to_le16(CS_RESET_OCCURRED)
1612 || (sts->status_flags & cpu_to_le16(STF_BUS_RESET)))
1613 hostdata->send_marker = 1;
1614
1615 if (le16_to_cpu(sts->scsi_status) & 0x0200)
1616 memcpy(Cmnd->sense_buffer, sts->req_sense_data,
1617 sizeof(Cmnd->sense_buffer));
1618
1619 outw(out_ptr, host->io_port + MBOX5);
1620
1621 if (Cmnd->scsi_done != NULL) {
1622 (*Cmnd->scsi_done) (Cmnd);
1623 } else
1624 printk("qlogicfc%d : Ouch, scsi done is NULL\n", hostdata->host_id);
1625 }
1626 hostdata->res_out_ptr = out_ptr;
1627 }
1628
1629
1630 out_ptr = inw(host->io_port + MBOX4);
1631 in_ptr = hostdata->req_in_ptr;
1632
1633 num_free = QLOGICFC_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr);
1634 num_free = (num_free > 2) ? num_free - 2 : 0;
1635 host->can_queue = host->host_busy + num_free;
1636 if (host->can_queue > QLOGICFC_REQ_QUEUE_LEN)
1637 host->can_queue = QLOGICFC_REQ_QUEUE_LEN;
1638 host->sg_tablesize = QLOGICFC_MAX_SG(num_free);
1639
1640 outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
1641 LEAVE_INTR("isp2x00_intr_handler");
1642 }
1643
1644
1645 static int isp2x00_return_status(Scsi_Cmnd *Cmnd, struct Status_Entry *sts)
1646 {
1647 int host_status = DID_ERROR;
1648 #if DEBUG_ISP2x00_INTR
1649 static char *reason[] =
1650 {
1651 "DID_OK",
1652 "DID_NO_CONNECT",
1653 "DID_BUS_BUSY",
1654 "DID_TIME_OUT",
1655 "DID_BAD_TARGET",
1656 "DID_ABORT",
1657 "DID_PARITY",
1658 "DID_ERROR",
1659 "DID_RESET",
1660 "DID_BAD_INTR"
1661 };
1662 #endif /* DEBUG_ISP2x00_INTR */
1663
1664 ENTER("isp2x00_return_status");
1665
1666 DEBUG(printk("qlogicfc : completion status = 0x%04x\n",
1667 le16_to_cpu(sts->completion_status)));
1668
1669 switch (le16_to_cpu(sts->completion_status)) {
1670 case CS_COMPLETE:
1671 host_status = DID_OK;
1672 break;
1673 case CS_DMA_ERROR:
1674 host_status = DID_ERROR;
1675 break;
1676 case CS_RESET_OCCURRED:
1677 host_status = DID_RESET;
1678 break;
1679 case CS_ABORTED:
1680 host_status = DID_ABORT;
1681 break;
1682 case CS_TIMEOUT:
1683 host_status = DID_TIME_OUT;
1684 break;
1685 case CS_DATA_OVERRUN:
1686 host_status = DID_ERROR;
1687 break;
1688 case CS_DATA_UNDERRUN:
1689 if (Cmnd->underflow <= (Cmnd->request_bufflen - le32_to_cpu(sts->residual)))
1690 host_status = DID_OK;
1691 else
1692 host_status = DID_ERROR;
1693 break;
1694 case CS_PORT_UNAVAILABLE:
1695 case CS_PORT_LOGGED_OUT:
1696 case CS_PORT_CONFIG_CHANGED:
1697 host_status = DID_BAD_TARGET;
1698 break;
1699 case CS_QUEUE_FULL:
1700 host_status = DID_ERROR;
1701 break;
1702 default:
1703 printk("qlogicfc : unknown completion status 0x%04x\n",
1704 le16_to_cpu(sts->completion_status));
1705 host_status = DID_ERROR;
1706 break;
1707 }
1708
1709 DEBUG_INTR(printk("qlogicfc : host status (%s) scsi status %x\n",
1710 reason[host_status], le16_to_cpu(sts->scsi_status)));
1711
1712 LEAVE("isp2x00_return_status");
1713
1714 return (le16_to_cpu(sts->scsi_status) & STATUS_MASK) | (host_status << 16);
1715 }
1716
1717
1718 static int isp2x00_abort(Scsi_Cmnd * Cmnd)
1719 {
1720 u_short param[8];
1721 int i;
1722 struct Scsi_Host *host;
1723 struct isp2x00_hostdata *hostdata;
1724 int return_status = SUCCESS;
1725
1726 ENTER("isp2x00_abort");
1727
1728 host = Cmnd->device->host;
1729 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1730
1731 for (i = 0; i < QLOGICFC_REQ_QUEUE_LEN; i++)
1732 if (hostdata->handle_ptrs[i] == Cmnd)
1733 break;
1734
1735 if (i == QLOGICFC_REQ_QUEUE_LEN){
1736 return SUCCESS;
1737 }
1738
1739 isp2x00_disable_irqs(host);
1740
1741 param[0] = MBOX_ABORT_IOCB;
1742 #if ISP2x00_PORTDB
1743 param[1] = (((u_short) hostdata->port_db[Cmnd->device->id].loop_id) << 8) | Cmnd->device->lun;
1744 #else
1745 param[1] = (((u_short) Cmnd->target) << 8) | Cmnd->lun;
1746 #endif
1747 param[2] = i & 0xffff;
1748 param[3] = i >> 16;
1749
1750 isp2x00_mbox_command(host, param);
1751
1752 if (param[0] != MBOX_COMMAND_COMPLETE) {
1753 printk("qlogicfc%d : scsi abort failure: %x\n", hostdata->host_id, param[0]);
1754 if (param[0] == 0x4005)
1755 Cmnd->result = DID_ERROR << 16;
1756 if (param[0] == 0x4006)
1757 Cmnd->result = DID_BAD_TARGET << 16;
1758 return_status = FAILED;
1759 }
1760
1761 if (return_status != SUCCESS){
1762 param[0] = MBOX_GET_FIRMWARE_STATE;
1763 isp2x00_mbox_command(host, param);
1764 printk("qlogicfc%d : abort failed\n", hostdata->host_id);
1765 printk("qlogicfc%d : firmware status is %x %x\n", hostdata->host_id, param[0], param[1]);
1766 }
1767
1768 isp2x00_enable_irqs(host);
1769
1770 LEAVE("isp2x00_abort");
1771
1772 return return_status;
1773 }
1774
1775
1776 static int isp2x00_biosparam(struct scsi_device *sdev, struct block_device *n,
1777 sector_t capacity, int ip[])
1778 {
1779 int size = capacity;
1780
1781 ENTER("isp2x00_biosparam");
1782
1783 ip[0] = 64;
1784 ip[1] = 32;
1785 ip[2] = size >> 11;
1786 if (ip[2] > 1024) {
1787 ip[0] = 255;
1788 ip[1] = 63;
1789 ip[2] = size / (ip[0] * ip[1]);
1790 }
1791 LEAVE("isp2x00_biosparam");
1792
1793 return 0;
1794 }
1795
1796 static int isp2x00_reset_hardware(struct Scsi_Host *host)
1797 {
1798 u_short param[8];
1799 struct isp2x00_hostdata *hostdata;
1800 int loop_count;
1801 dma_addr_t busaddr;
1802
1803 ENTER("isp2x00_reset_hardware");
1804
1805 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1806
1807 /*
1808 * This cannot be right - PCI writes are posted
1809 * (apparently this is hardware design flaw not software ?)
1810 */
1811
1812 outw(0x01, host->io_port + ISP_CTRL_STATUS);
1813 udelay(100);
1814 outw(HCCR_RESET, host->io_port + HOST_HCCR);
1815 udelay(100);
1816 outw(HCCR_RELEASE, host->io_port + HOST_HCCR);
1817 outw(HCCR_BIOS_DISABLE, host->io_port + HOST_HCCR);
1818
1819 loop_count = DEFAULT_LOOP_COUNT;
1820 while (--loop_count && inw(host->io_port + HOST_HCCR) == RISC_BUSY) {
1821 barrier();
1822 cpu_relax();
1823 }
1824 if (!loop_count)
1825 printk("qlogicfc%d : reset_hardware loop timeout\n", hostdata->host_id);
1826
1827
1828
1829 #if DEBUG_ISP2x00
1830 printk("qlogicfc%d : mbox 0 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX0));
1831 printk("qlogicfc%d : mbox 1 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX1));
1832 printk("qlogicfc%d : mbox 2 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX2));
1833 printk("qlogicfc%d : mbox 3 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX3));
1834 printk("qlogicfc%d : mbox 4 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX4));
1835 printk("qlogicfc%d : mbox 5 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX5));
1836 printk("qlogicfc%d : mbox 6 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX6));
1837 printk("qlogicfc%d : mbox 7 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX7));
1838 #endif /* DEBUG_ISP2x00 */
1839
1840 DEBUG(printk("qlogicfc%d : verifying checksum\n", hostdata->host_id));
1841
1842 #if defined(CONFIG_SCSI_QLOGIC_FC_FIRMWARE)
1843 {
1844 int i;
1845 unsigned short * risc_code = NULL;
1846 unsigned short risc_code_len = 0;
1847 if (hostdata->pci_dev->device == PCI_DEVICE_ID_QLOGIC_ISP2100){
1848 risc_code = risc_code2100;
1849 risc_code_len = risc_code_length2100;
1850 }
1851 else if (hostdata->pci_dev->device == PCI_DEVICE_ID_QLOGIC_ISP2200){
1852 risc_code = risc_code2200;
1853 risc_code_len = risc_code_length2200;
1854 }
1855
1856 for (i = 0; i < risc_code_len; i++) {
1857 param[0] = MBOX_WRITE_RAM_WORD;
1858 param[1] = risc_code_addr01 + i;
1859 param[2] = risc_code[i];
1860
1861 isp2x00_mbox_command(host, param);
1862
1863 if (param[0] != MBOX_COMMAND_COMPLETE) {
1864 printk("qlogicfc%d : firmware load failure\n", hostdata->host_id);
1865 return 1;
1866 }
1867 }
1868 }
1869 #endif /* RELOAD_FIRMWARE */
1870
1871 param[0] = MBOX_VERIFY_CHECKSUM;
1872 param[1] = risc_code_addr01;
1873
1874 isp2x00_mbox_command(host, param);
1875
1876 if (param[0] != MBOX_COMMAND_COMPLETE) {
1877 printk("qlogicfc%d : ram checksum failure\n", hostdata->host_id);
1878 return 1;
1879 }
1880 DEBUG(printk("qlogicfc%d : executing firmware\n", hostdata->host_id));
1881
1882 param[0] = MBOX_EXEC_FIRMWARE;
1883 param[1] = risc_code_addr01;
1884
1885 isp2x00_mbox_command(host, param);
1886
1887 param[0] = MBOX_ABOUT_FIRMWARE;
1888
1889 isp2x00_mbox_command(host, param);
1890
1891 if (param[0] != MBOX_COMMAND_COMPLETE) {
1892 printk("qlogicfc%d : about firmware failure\n", hostdata->host_id);
1893 return 1;
1894 }
1895 DEBUG(printk("qlogicfc%d : firmware major revision %d\n", hostdata->host_id, param[1]));
1896 DEBUG(printk("qlogicfc%d : firmware minor revision %d\n", hostdata->host_id, param[2]));
1897
1898 #ifdef USE_NVRAM_DEFAULTS
1899
1900 if (isp2x00_get_nvram_defaults(host, &hostdata->control_block) != 0) {
1901 printk("qlogicfc%d : Could not read from NVRAM\n", hostdata->host_id);
1902 }
1903 #endif
1904
1905 hostdata->wwn = (u64) (cpu_to_le16(hostdata->control_block.node_name[0])) << 56;
1906 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[0]) & 0xff00) << 48;
1907 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[1]) & 0xff00) << 24;
1908 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[1]) & 0x00ff) << 48;
1909 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[2]) & 0x00ff) << 24;
1910 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[2]) & 0xff00) << 8;
1911 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[3]) & 0x00ff) << 8;
1912 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[3]) & 0xff00) >> 8;
1913
1914 /* FIXME: If the DMA transfer goes one way only, this should use
1915 * PCI_DMA_TODEVICE and below as well.
1916 */
1917 busaddr = pci_map_page(hostdata->pci_dev,
1918 virt_to_page(&hostdata->control_block),
1919 offset_in_page(&hostdata->control_block),
1920 sizeof(hostdata->control_block),
1921 PCI_DMA_BIDIRECTIONAL);
1922
1923 param[0] = MBOX_INIT_FIRMWARE;
1924 param[2] = (u_short) (pci64_dma_lo32(busaddr) >> 16);
1925 param[3] = (u_short) (pci64_dma_lo32(busaddr) & 0xffff);
1926 param[4] = 0;
1927 param[5] = 0;
1928 param[6] = (u_short) (pci64_dma_hi32(busaddr) >> 16);
1929 param[7] = (u_short) (pci64_dma_hi32(busaddr) & 0xffff);
1930 isp2x00_mbox_command(host, param);
1931 if (param[0] != MBOX_COMMAND_COMPLETE) {
1932 printk("qlogicfc%d.c: Ouch 0x%04x\n", hostdata->host_id, param[0]);
1933 pci_unmap_page(hostdata->pci_dev, busaddr,
1934 sizeof(hostdata->control_block),
1935 PCI_DMA_BIDIRECTIONAL);
1936 return 1;
1937 }
1938 param[0] = MBOX_GET_FIRMWARE_STATE;
1939 isp2x00_mbox_command(host, param);
1940 if (param[0] != MBOX_COMMAND_COMPLETE) {
1941 printk("qlogicfc%d.c: 0x%04x\n", hostdata->host_id, param[0]);
1942 pci_unmap_page(hostdata->pci_dev, busaddr,
1943 sizeof(hostdata->control_block),
1944 PCI_DMA_BIDIRECTIONAL);
1945 return 1;
1946 }
1947
1948 pci_unmap_page(hostdata->pci_dev, busaddr,
1949 sizeof(hostdata->control_block),
1950 PCI_DMA_BIDIRECTIONAL);
1951 LEAVE("isp2x00_reset_hardware");
1952
1953 return 0;
1954 }
1955
1956 #ifdef USE_NVRAM_DEFAULTS
1957
1958 static int isp2x00_get_nvram_defaults(struct Scsi_Host *host, struct init_cb *control_block)
1959 {
1960
1961 u_short value;
1962 if (isp2x00_read_nvram_word(host, 0) != 0x5349)
1963 return 1;
1964
1965 value = isp2x00_read_nvram_word(host, 8);
1966 control_block->node_name[0] = cpu_to_le16(isp2x00_read_nvram_word(host, 9));
1967 control_block->node_name[1] = cpu_to_le16(isp2x00_read_nvram_word(host, 10));
1968 control_block->node_name[2] = cpu_to_le16(isp2x00_read_nvram_word(host, 11));
1969 control_block->node_name[3] = cpu_to_le16(isp2x00_read_nvram_word(host, 12));
1970 control_block->hard_addr = cpu_to_le16(isp2x00_read_nvram_word(host, 13));
1971
1972 return 0;
1973
1974 }
1975
1976 #endif
1977
1978 static int isp2x00_init(struct Scsi_Host *sh)
1979 {
1980 u_long io_base;
1981 struct isp2x00_hostdata *hostdata;
1982 u_char revision;
1983 u_int irq;
1984 u_short command;
1985 struct pci_dev *pdev;
1986
1987
1988 ENTER("isp2x00_init");
1989
1990 hostdata = (struct isp2x00_hostdata *) sh->hostdata;
1991 pdev = hostdata->pci_dev;
1992
1993 if (pci_read_config_word(pdev, PCI_COMMAND, &command)
1994 || pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision)) {
1995 printk("qlogicfc%d : error reading PCI configuration\n", hostdata->host_id);
1996 return 1;
1997 }
1998 io_base = pci_resource_start(pdev, 0);
1999 irq = pdev->irq;
2000
2001
2002 if (pdev->vendor != PCI_VENDOR_ID_QLOGIC) {
2003 printk("qlogicfc%d : 0x%04x is not QLogic vendor ID\n", hostdata->host_id,
2004 pdev->vendor);
2005 return 1;
2006 }
2007 if (pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2100 && pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2200) {
2008 printk("qlogicfc%d : 0x%04x does not match ISP2100 or ISP2200 device id\n", hostdata->host_id,
2009 pdev->device);
2010 return 1;
2011 }
2012 if (!(command & PCI_COMMAND_IO) ||
2013 !(pdev->resource[0].flags & IORESOURCE_IO)) {
2014 printk("qlogicfc%d : i/o mapping is disabled\n", hostdata->host_id);
2015 return 1;
2016 }
2017
2018 pci_set_master(pdev);
2019 if (revision != ISP2100_REV_ID1 && revision != ISP2100_REV_ID3 && revision != ISP2200_REV_ID5)
2020 printk("qlogicfc%d : new isp2x00 revision ID (%d)\n", hostdata->host_id, revision);
2021
2022
2023 hostdata->revision = revision;
2024
2025 sh->irq = irq;
2026 sh->io_port = io_base;
2027
2028 LEAVE("isp2x00_init");
2029
2030 return 0;
2031 }
2032
2033 #if USE_NVRAM_DEFAULTS
2034
2035 #define NVRAM_DELAY() udelay(10) /* 10 microsecond delay */
2036
2037
2038 u_short isp2x00_read_nvram_word(struct Scsi_Host * host, u_short byte)
2039 {
2040 int i;
2041 u_short value, output, input;
2042
2043 outw(0x2, host->io_port + PCI_NVRAM);
2044 NVRAM_DELAY();
2045 outw(0x3, host->io_port + PCI_NVRAM);
2046 NVRAM_DELAY();
2047
2048 byte &= 0xff;
2049 byte |= 0x0600;
2050 for (i = 10; i >= 0; i--) {
2051 output = ((byte >> i) & 0x1) ? 0x4 : 0x0;
2052 outw(output | 0x2, host->io_port + PCI_NVRAM);
2053 NVRAM_DELAY();
2054 outw(output | 0x3, host->io_port + PCI_NVRAM);
2055 NVRAM_DELAY();
2056 outw(output | 0x2, host->io_port + PCI_NVRAM);
2057 NVRAM_DELAY();
2058 }
2059
2060 for (i = 0xf, value = 0; i >= 0; i--) {
2061 value <<= 1;
2062 outw(0x3, host->io_port + PCI_NVRAM);
2063 NVRAM_DELAY();
2064 input = inw(host->io_port + PCI_NVRAM);
2065 NVRAM_DELAY();
2066 outw(0x2, host->io_port + PCI_NVRAM);
2067 NVRAM_DELAY();
2068 if (input & 0x8)
2069 value |= 1;
2070 }
2071
2072 outw(0x0, host->io_port + PCI_NVRAM);
2073 NVRAM_DELAY();
2074
2075 return value;
2076 }
2077
2078
2079 #endif /* USE_NVRAM_DEFAULTS */
2080
2081
2082
2083 /*
2084 * currently, this is only called during initialization or abort/reset,
2085 * at which times interrupts are disabled, so polling is OK, I guess...
2086 */
2087 static int isp2x00_mbox_command(struct Scsi_Host *host, u_short param[])
2088 {
2089 int loop_count;
2090 struct isp2x00_hostdata *hostdata = (struct isp2x00_hostdata *) host->hostdata;
2091
2092 if (mbox_param[param[0]] == 0 || hostdata->adapter_state == AS_FIRMWARE_DEAD)
2093 return 1;
2094
2095 loop_count = DEFAULT_LOOP_COUNT;
2096 while (--loop_count && inw(host->io_port + HOST_HCCR) & 0x0080) {
2097 barrier();
2098 cpu_relax();
2099 }
2100 if (!loop_count) {
2101 printk("qlogicfc%d : mbox_command loop timeout #1\n", hostdata->host_id);
2102 param[0] = 0x4006;
2103 hostdata->adapter_state = AS_FIRMWARE_DEAD;
2104 return 1;
2105 }
2106 hostdata->mbox_done = 0;
2107
2108 if (mbox_param[param[0]] == 0)
2109 printk("qlogicfc%d : invalid mbox command\n", hostdata->host_id);
2110
2111 if (mbox_param[param[0]] & 0x80)
2112 outw(param[7], host->io_port + MBOX7);
2113 if (mbox_param[param[0]] & 0x40)
2114 outw(param[6], host->io_port + MBOX6);
2115 if (mbox_param[param[0]] & 0x20)
2116 outw(param[5], host->io_port + MBOX5);
2117 if (mbox_param[param[0]] & 0x10)
2118 outw(param[4], host->io_port + MBOX4);
2119 if (mbox_param[param[0]] & 0x08)
2120 outw(param[3], host->io_port + MBOX3);
2121 if (mbox_param[param[0]] & 0x04)
2122 outw(param[2], host->io_port + MBOX2);
2123 if (mbox_param[param[0]] & 0x02)
2124 outw(param[1], host->io_port + MBOX1);
2125 if (mbox_param[param[0]] & 0x01)
2126 outw(param[0], host->io_port + MBOX0);
2127
2128
2129 outw(HCCR_SET_HOST_INTR, host->io_port + HOST_HCCR);
2130
2131 while (1) {
2132 loop_count = DEFAULT_LOOP_COUNT;
2133 while (--loop_count && !(inw(host->io_port + PCI_INTER_STS) & 0x08)) {
2134 barrier();
2135 cpu_relax();
2136 }
2137
2138 if (!loop_count) {
2139 hostdata->adapter_state = AS_FIRMWARE_DEAD;
2140 printk("qlogicfc%d : mbox_command loop timeout #2\n", hostdata->host_id);
2141 break;
2142 }
2143 isp2x00_intr_handler(host->irq, host, NULL);
2144
2145 if (hostdata->mbox_done == 1)
2146 break;
2147
2148 }
2149
2150 loop_count = DEFAULT_LOOP_COUNT;
2151 while (--loop_count && inw(host->io_port + MBOX0) == 0x04) {
2152 barrier();
2153 cpu_relax();
2154 }
2155 if (!loop_count)
2156 printk("qlogicfc%d : mbox_command loop timeout #3\n", hostdata->host_id);
2157
2158 param[7] = inw(host->io_port + MBOX7);
2159 param[6] = inw(host->io_port + MBOX6);
2160 param[5] = inw(host->io_port + MBOX5);
2161 param[4] = inw(host->io_port + MBOX4);
2162 param[3] = inw(host->io_port + MBOX3);
2163 param[2] = inw(host->io_port + MBOX2);
2164 param[1] = inw(host->io_port + MBOX1);
2165 param[0] = inw(host->io_port + MBOX0);
2166
2167
2168 outw(0x0, host->io_port + PCI_SEMAPHORE);
2169
2170 if (inw(host->io_port + HOST_HCCR) & 0x0080) {
2171 hostdata->adapter_state = AS_FIRMWARE_DEAD;
2172 printk("qlogicfc%d : mbox op is still pending\n", hostdata->host_id);
2173 }
2174 return 0;
2175 }
2176
2177 #if DEBUG_ISP2x00_INTR
2178
2179 void isp2x00_print_status_entry(struct Status_Entry *status)
2180 {
2181 printk("qlogicfc : entry count = 0x%02x, type = 0x%02x, flags = 0x%02x\n",
2182 status->hdr.entry_cnt, status->hdr.entry_type, status->hdr.flags);
2183 printk("qlogicfc : scsi status = 0x%04x, completion status = 0x%04x\n",
2184 le16_to_cpu(status->scsi_status), le16_to_cpu(status->completion_status));
2185 printk("qlogicfc : state flags = 0x%04x, status flags = 0x%04x\n",
2186 le16_to_cpu(status->state_flags), le16_to_cpu(status->status_flags));
2187 printk("qlogicfc : response info length = 0x%04x, request sense length = 0x%04x\n",
2188 le16_to_cpu(status->res_info_len), le16_to_cpu(status->req_sense_len));
2189 printk("qlogicfc : residual transfer length = 0x%08x, response = 0x%02x\n", le32_to_cpu(status->residual), status->res_info[3]);
2190
2191 }
2192
2193 #endif /* DEBUG_ISP2x00_INTR */
2194
2195
2196 #if DEBUG_ISP2x00
2197
2198 void isp2x00_print_scsi_cmd(Scsi_Cmnd * cmd)
2199 {
2200 int i;
2201
2202 printk("qlogicfc : target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
2203 cmd->target, cmd->lun, cmd->cmd_len);
2204 printk("qlogicfc : command = ");
2205 for (i = 0; i < cmd->cmd_len; i++)
2206 printk("0x%02x ", cmd->cmnd[i]);
2207 printk("\n");
2208 }
2209
2210 #endif /* DEBUG_ISP2x00 */
2211
2212 MODULE_LICENSE("GPL");
2213
2214 static Scsi_Host_Template driver_template = {
2215 .detect = isp2x00_detect,
2216 .release = isp2x00_release,
2217 .info = isp2x00_info,
2218 .queuecommand = isp2x00_queuecommand,
2219 .eh_abort_handler = isp2x00_abort,
2220 .bios_param = isp2x00_biosparam,
2221 .can_queue = QLOGICFC_REQ_QUEUE_LEN,
2222 .this_id = -1,
2223 .sg_tablesize = QLOGICFC_MAX_SG(QLOGICFC_REQ_QUEUE_LEN),
2224 .cmd_per_lun = QLOGICFC_CMD_PER_LUN,
2225 .use_clustering = ENABLE_CLUSTERING,
2226 };
2227 #include "scsi_module.c"
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git