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Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
[linux-2.6/mini2440.git] / drivers / scsi / qlogicfc.c
blob52b224a5d6fd678e8ec1c988d57fea0ff4c890b8
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 <linux/dma-mapping.h>
65 #include <linux/jiffies.h>
66 #include <asm/io.h>
67 #include <asm/irq.h>
68 #include "scsi.h"
69 #include <scsi/scsi_host.h>
70
71 #define pci64_dma_hi32(a) ((u32) (0xffffffff & (((u64)(a))>>32)))
72 #define pci64_dma_lo32(a) ((u32) (0xffffffff & (((u64)(a)))))
73 #define pci64_dma_build(hi,lo) \
74 ((dma_addr_t)(((u64)(lo))|(((u64)(hi))<<32)))
75
76 /*
77 * With the qlogic interface, every queue slot can hold a SCSI
78 * command with up to 2 scatter/gather entries. If we need more
79 * than 2 entries, continuation entries can be used that hold
80 * another 5 entries each. Unlike for other drivers, this means
81 * that the maximum number of scatter/gather entries we can
82 * support at any given time is a function of the number of queue
83 * slots available. That is, host->can_queue and host->sg_tablesize
84 * are dynamic and _not_ independent. This all works fine because
85 * requests are queued serially and the scatter/gather limit is
86 * determined for each queue request anew.
87 */
88
89 #define DATASEGS_PER_COMMAND 2
90 #define DATASEGS_PER_CONT 5
91
92 #define QLOGICFC_REQ_QUEUE_LEN 255 /* must be power of two - 1 */
93 #define QLOGICFC_MAX_SG(ql) (DATASEGS_PER_COMMAND + (((ql) > 0) ? DATASEGS_PER_CONT*((ql) - 1) : 0))
94 #define QLOGICFC_CMD_PER_LUN 8
95
96 /* Configuration section **************************************************** */
97
98 /* Set the following macro to 1 to reload the ISP2x00's firmware. This is
99 version 1.17.30 of the isp2100's firmware and version 2.00.40 of the
100 isp2200's firmware.
101 */
102
103 #define USE_NVRAM_DEFAULTS 1
104
105 #define ISP2x00_PORTDB 1
106
107 /* Set the following to 1 to include fabric support, fabric support is
108 * currently not as well tested as the other aspects of the driver */
109
110 #define ISP2x00_FABRIC 1
111
112 /* Macros used for debugging */
113 #define DEBUG_ISP2x00 0
114 #define DEBUG_ISP2x00_INT 0
115 #define DEBUG_ISP2x00_INTR 0
116 #define DEBUG_ISP2x00_SETUP 0
117 #define DEBUG_ISP2x00_FABRIC 0
118 #define TRACE_ISP 0
119
120
121 #define DEFAULT_LOOP_COUNT 1000000000
122
123 #define ISP_TIMEOUT (2*HZ)
124 /* End Configuration section ************************************************ */
125
126 #include <linux/module.h>
127
128 #if TRACE_ISP
129
130 #define TRACE_BUF_LEN (32*1024)
131
132 struct {
133 u_long next;
134 struct {
135 u_long time;
136 u_int index;
137 u_int addr;
138 u_char *name;
139 } buf[TRACE_BUF_LEN];
140 } trace;
141
142 #define TRACE(w, i, a) \
143 { \
144 unsigned long flags; \
145 \
146 save_flags(flags); \
147 cli(); \
148 trace.buf[trace.next].name = (w); \
149 trace.buf[trace.next].time = jiffies; \
150 trace.buf[trace.next].index = (i); \
151 trace.buf[trace.next].addr = (long) (a); \
152 trace.next = (trace.next + 1) & (TRACE_BUF_LEN - 1); \
153 restore_flags(flags); \
154 }
155
156 #else
157 #define TRACE(w, i, a)
158 #endif
159
160 #if DEBUG_ISP2x00_FABRIC
161 #define DEBUG_FABRIC(x) x
162 #else
163 #define DEBUG_FABRIC(x)
164 #endif /* DEBUG_ISP2x00_FABRIC */
165
166
167 #if DEBUG_ISP2x00
168 #define ENTER(x) printk("isp2x00 : entering %s()\n", x);
169 #define LEAVE(x) printk("isp2x00 : leaving %s()\n", x);
170 #define DEBUG(x) x
171 #else
172 #define ENTER(x)
173 #define LEAVE(x)
174 #define DEBUG(x)
175 #endif /* DEBUG_ISP2x00 */
176
177 #if DEBUG_ISP2x00_INTR
178 #define ENTER_INTR(x) printk("isp2x00 : entering %s()\n", x);
179 #define LEAVE_INTR(x) printk("isp2x00 : leaving %s()\n", x);
180 #define DEBUG_INTR(x) x
181 #else
182 #define ENTER_INTR(x)
183 #define LEAVE_INTR(x)
184 #define DEBUG_INTR(x)
185 #endif /* DEBUG ISP2x00_INTR */
186
187
188 #define ISP2100_REV_ID1 1
189 #define ISP2100_REV_ID3 3
190 #define ISP2200_REV_ID5 5
191
192 /* host configuration and control registers */
193 #define HOST_HCCR 0xc0 /* host command and control */
194
195 /* pci bus interface registers */
196 #define FLASH_BIOS_ADDR 0x00
197 #define FLASH_BIOS_DATA 0x02
198 #define ISP_CTRL_STATUS 0x06 /* configuration register #1 */
199 #define PCI_INTER_CTL 0x08 /* pci interrupt control */
200 #define PCI_INTER_STS 0x0a /* pci interrupt status */
201 #define PCI_SEMAPHORE 0x0c /* pci semaphore */
202 #define PCI_NVRAM 0x0e /* pci nvram interface */
203
204 /* mailbox registers */
205 #define MBOX0 0x10 /* mailbox 0 */
206 #define MBOX1 0x12 /* mailbox 1 */
207 #define MBOX2 0x14 /* mailbox 2 */
208 #define MBOX3 0x16 /* mailbox 3 */
209 #define MBOX4 0x18 /* mailbox 4 */
210 #define MBOX5 0x1a /* mailbox 5 */
211 #define MBOX6 0x1c /* mailbox 6 */
212 #define MBOX7 0x1e /* mailbox 7 */
213
214 /* mailbox command complete status codes */
215 #define MBOX_COMMAND_COMPLETE 0x4000
216 #define INVALID_COMMAND 0x4001
217 #define HOST_INTERFACE_ERROR 0x4002
218 #define TEST_FAILED 0x4003
219 #define COMMAND_ERROR 0x4005
220 #define COMMAND_PARAM_ERROR 0x4006
221 #define PORT_ID_USED 0x4007
222 #define LOOP_ID_USED 0x4008
223 #define ALL_IDS_USED 0x4009
224
225 /* async event status codes */
226 #define RESET_DETECTED 0x8001
227 #define SYSTEM_ERROR 0x8002
228 #define REQUEST_TRANSFER_ERROR 0x8003
229 #define RESPONSE_TRANSFER_ERROR 0x8004
230 #define REQUEST_QUEUE_WAKEUP 0x8005
231 #define LIP_OCCURRED 0x8010
232 #define LOOP_UP 0x8011
233 #define LOOP_DOWN 0x8012
234 #define LIP_RECEIVED 0x8013
235 #define PORT_DB_CHANGED 0x8014
236 #define CHANGE_NOTIFICATION 0x8015
237 #define SCSI_COMMAND_COMPLETE 0x8020
238 #define POINT_TO_POINT_UP 0x8030
239 #define CONNECTION_MODE 0x8036
240
241 struct Entry_header {
242 u_char entry_type;
243 u_char entry_cnt;
244 u_char sys_def_1;
245 u_char flags;
246 };
247
248 /* entry header type commands */
249 #define ENTRY_COMMAND 0x19
250 #define ENTRY_CONTINUATION 0x0a
251
252 #define ENTRY_STATUS 0x03
253 #define ENTRY_MARKER 0x04
254
255
256 /* entry header flag definitions */
257 #define EFLAG_BUSY 2
258 #define EFLAG_BAD_HEADER 4
259 #define EFLAG_BAD_PAYLOAD 8
260
261 struct dataseg {
262 u_int d_base;
263 u_int d_base_hi;
264 u_int d_count;
265 };
266
267 struct Command_Entry {
268 struct Entry_header hdr;
269 u_int handle;
270 u_char target_lun;
271 u_char target_id;
272 u_short expanded_lun;
273 u_short control_flags;
274 u_short rsvd2;
275 u_short time_out;
276 u_short segment_cnt;
277 u_char cdb[16];
278 u_int total_byte_cnt;
279 struct dataseg dataseg[DATASEGS_PER_COMMAND];
280 };
281
282 /* command entry control flag definitions */
283 #define CFLAG_NODISC 0x01
284 #define CFLAG_HEAD_TAG 0x02
285 #define CFLAG_ORDERED_TAG 0x04
286 #define CFLAG_SIMPLE_TAG 0x08
287 #define CFLAG_TAR_RTN 0x10
288 #define CFLAG_READ 0x20
289 #define CFLAG_WRITE 0x40
290
291 struct Continuation_Entry {
292 struct Entry_header hdr;
293 struct dataseg dataseg[DATASEGS_PER_CONT];
294 };
295
296 struct Marker_Entry {
297 struct Entry_header hdr;
298 u_int reserved;
299 u_char target_lun;
300 u_char target_id;
301 u_char modifier;
302 u_char expanded_lun;
303 u_char rsvds[52];
304 };
305
306 /* marker entry modifier definitions */
307 #define SYNC_DEVICE 0
308 #define SYNC_TARGET 1
309 #define SYNC_ALL 2
310
311 struct Status_Entry {
312 struct Entry_header hdr;
313 u_int handle;
314 u_short scsi_status;
315 u_short completion_status;
316 u_short state_flags;
317 u_short status_flags;
318 u_short res_info_len;
319 u_short req_sense_len;
320 u_int residual;
321 u_char res_info[8];
322 u_char req_sense_data[32];
323 };
324
325 /* status entry completion status definitions */
326 #define CS_COMPLETE 0x0000
327 #define CS_DMA_ERROR 0x0002
328 #define CS_RESET_OCCURRED 0x0004
329 #define CS_ABORTED 0x0005
330 #define CS_TIMEOUT 0x0006
331 #define CS_DATA_OVERRUN 0x0007
332 #define CS_DATA_UNDERRUN 0x0015
333 #define CS_QUEUE_FULL 0x001c
334 #define CS_PORT_UNAVAILABLE 0x0028
335 #define CS_PORT_LOGGED_OUT 0x0029
336 #define CS_PORT_CONFIG_CHANGED 0x002a
337
338 /* status entry state flag definitions */
339 #define SF_SENT_CDB 0x0400
340 #define SF_TRANSFERRED_DATA 0x0800
341 #define SF_GOT_STATUS 0x1000
342
343 /* status entry status flag definitions */
344 #define STF_BUS_RESET 0x0008
345 #define STF_DEVICE_RESET 0x0010
346 #define STF_ABORTED 0x0020
347 #define STF_TIMEOUT 0x0040
348
349 /* interrupt control commands */
350 #define ISP_EN_INT 0x8000
351 #define ISP_EN_RISC 0x0008
352
353 /* host control commands */
354 #define HCCR_NOP 0x0000
355 #define HCCR_RESET 0x1000
356 #define HCCR_PAUSE 0x2000
357 #define HCCR_RELEASE 0x3000
358 #define HCCR_SINGLE_STEP 0x4000
359 #define HCCR_SET_HOST_INTR 0x5000
360 #define HCCR_CLEAR_HOST_INTR 0x6000
361 #define HCCR_CLEAR_RISC_INTR 0x7000
362 #define HCCR_BP_ENABLE 0x8000
363 #define HCCR_BIOS_DISABLE 0x9000
364 #define HCCR_TEST_MODE 0xf000
365
366 #define RISC_BUSY 0x0004
367
368 /* mailbox commands */
369 #define MBOX_NO_OP 0x0000
370 #define MBOX_LOAD_RAM 0x0001
371 #define MBOX_EXEC_FIRMWARE 0x0002
372 #define MBOX_DUMP_RAM 0x0003
373 #define MBOX_WRITE_RAM_WORD 0x0004
374 #define MBOX_READ_RAM_WORD 0x0005
375 #define MBOX_MAILBOX_REG_TEST 0x0006
376 #define MBOX_VERIFY_CHECKSUM 0x0007
377 #define MBOX_ABOUT_FIRMWARE 0x0008
378 #define MBOX_LOAD_RISC_RAM 0x0009
379 #define MBOX_DUMP_RISC_RAM 0x000a
380 #define MBOX_CHECK_FIRMWARE 0x000e
381 #define MBOX_INIT_REQ_QUEUE 0x0010
382 #define MBOX_INIT_RES_QUEUE 0x0011
383 #define MBOX_EXECUTE_IOCB 0x0012
384 #define MBOX_WAKE_UP 0x0013
385 #define MBOX_STOP_FIRMWARE 0x0014
386 #define MBOX_ABORT_IOCB 0x0015
387 #define MBOX_ABORT_DEVICE 0x0016
388 #define MBOX_ABORT_TARGET 0x0017
389 #define MBOX_BUS_RESET 0x0018
390 #define MBOX_STOP_QUEUE 0x0019
391 #define MBOX_START_QUEUE 0x001a
392 #define MBOX_SINGLE_STEP_QUEUE 0x001b
393 #define MBOX_ABORT_QUEUE 0x001c
394 #define MBOX_GET_DEV_QUEUE_STATUS 0x001d
395 #define MBOX_GET_FIRMWARE_STATUS 0x001f
396 #define MBOX_GET_INIT_SCSI_ID 0x0020
397 #define MBOX_GET_RETRY_COUNT 0x0022
398 #define MBOX_GET_TARGET_PARAMS 0x0028
399 #define MBOX_GET_DEV_QUEUE_PARAMS 0x0029
400 #define MBOX_SET_RETRY_COUNT 0x0032
401 #define MBOX_SET_TARGET_PARAMS 0x0038
402 #define MBOX_SET_DEV_QUEUE_PARAMS 0x0039
403 #define MBOX_EXECUTE_IOCB64 0x0054
404 #define MBOX_INIT_FIRMWARE 0x0060
405 #define MBOX_GET_INIT_CB 0x0061
406 #define MBOX_INIT_LIP 0x0062
407 #define MBOX_GET_POS_MAP 0x0063
408 #define MBOX_GET_PORT_DB 0x0064
409 #define MBOX_CLEAR_ACA 0x0065
410 #define MBOX_TARGET_RESET 0x0066
411 #define MBOX_CLEAR_TASK_SET 0x0067
412 #define MBOX_ABORT_TASK_SET 0x0068
413 #define MBOX_GET_FIRMWARE_STATE 0x0069
414 #define MBOX_GET_PORT_NAME 0x006a
415 #define MBOX_SEND_SNS 0x006e
416 #define MBOX_PORT_LOGIN 0x006f
417 #define MBOX_SEND_CHANGE_REQUEST 0x0070
418 #define MBOX_PORT_LOGOUT 0x0071
419
420 /*
421 * Firmware if needed (note this is a hack, it belongs in a separate
422 * module.
423 */
424
425 #ifdef CONFIG_SCSI_QLOGIC_FC_FIRMWARE
426 #include "qlogicfc_asm.c"
427 #else
428 static unsigned short risc_code_addr01 = 0x1000 ;
429 #endif
430
431 /* Each element in mbox_param is an 8 bit bitmap where each bit indicates
432 if that mbox should be copied as input. For example 0x2 would mean
433 only copy mbox1. */
434
435 static const u_char mbox_param[] =
436 {
437 0x01, /* MBOX_NO_OP */
438 0x1f, /* MBOX_LOAD_RAM */
439 0x03, /* MBOX_EXEC_FIRMWARE */
440 0x1f, /* MBOX_DUMP_RAM */
441 0x07, /* MBOX_WRITE_RAM_WORD */
442 0x03, /* MBOX_READ_RAM_WORD */
443 0xff, /* MBOX_MAILBOX_REG_TEST */
444 0x03, /* MBOX_VERIFY_CHECKSUM */
445 0x01, /* MBOX_ABOUT_FIRMWARE */
446 0xff, /* MBOX_LOAD_RISC_RAM */
447 0xff, /* MBOX_DUMP_RISC_RAM */
448 0x00, /* 0x000b */
449 0x00, /* 0x000c */
450 0x00, /* 0x000d */
451 0x01, /* MBOX_CHECK_FIRMWARE */
452 0x00, /* 0x000f */
453 0x1f, /* MBOX_INIT_REQ_QUEUE */
454 0x2f, /* MBOX_INIT_RES_QUEUE */
455 0x0f, /* MBOX_EXECUTE_IOCB */
456 0x03, /* MBOX_WAKE_UP */
457 0x01, /* MBOX_STOP_FIRMWARE */
458 0x0f, /* MBOX_ABORT_IOCB */
459 0x03, /* MBOX_ABORT_DEVICE */
460 0x07, /* MBOX_ABORT_TARGET */
461 0x03, /* MBOX_BUS_RESET */
462 0x03, /* MBOX_STOP_QUEUE */
463 0x03, /* MBOX_START_QUEUE */
464 0x03, /* MBOX_SINGLE_STEP_QUEUE */
465 0x03, /* MBOX_ABORT_QUEUE */
466 0x03, /* MBOX_GET_DEV_QUEUE_STATUS */
467 0x00, /* 0x001e */
468 0x01, /* MBOX_GET_FIRMWARE_STATUS */
469 0x01, /* MBOX_GET_INIT_SCSI_ID */
470 0x00, /* 0x0021 */
471 0x01, /* MBOX_GET_RETRY_COUNT */
472 0x00, /* 0x0023 */
473 0x00, /* 0x0024 */
474 0x00, /* 0x0025 */
475 0x00, /* 0x0026 */
476 0x00, /* 0x0027 */
477 0x03, /* MBOX_GET_TARGET_PARAMS */
478 0x03, /* MBOX_GET_DEV_QUEUE_PARAMS */
479 0x00, /* 0x002a */
480 0x00, /* 0x002b */
481 0x00, /* 0x002c */
482 0x00, /* 0x002d */
483 0x00, /* 0x002e */
484 0x00, /* 0x002f */
485 0x00, /* 0x0030 */
486 0x00, /* 0x0031 */
487 0x07, /* MBOX_SET_RETRY_COUNT */
488 0x00, /* 0x0033 */
489 0x00, /* 0x0034 */
490 0x00, /* 0x0035 */
491 0x00, /* 0x0036 */
492 0x00, /* 0x0037 */
493 0x0f, /* MBOX_SET_TARGET_PARAMS */
494 0x0f, /* MBOX_SET_DEV_QUEUE_PARAMS */
495 0x00, /* 0x003a */
496 0x00, /* 0x003b */
497 0x00, /* 0x003c */
498 0x00, /* 0x003d */
499 0x00, /* 0x003e */
500 0x00, /* 0x003f */
501 0x00, /* 0x0040 */
502 0x00, /* 0x0041 */
503 0x00, /* 0x0042 */
504 0x00, /* 0x0043 */
505 0x00, /* 0x0044 */
506 0x00, /* 0x0045 */
507 0x00, /* 0x0046 */
508 0x00, /* 0x0047 */
509 0x00, /* 0x0048 */
510 0x00, /* 0x0049 */
511 0x00, /* 0x004a */
512 0x00, /* 0x004b */
513 0x00, /* 0x004c */
514 0x00, /* 0x004d */
515 0x00, /* 0x004e */
516 0x00, /* 0x004f */
517 0x00, /* 0x0050 */
518 0x00, /* 0x0051 */
519 0x00, /* 0x0052 */
520 0x00, /* 0x0053 */
521 0xcf, /* MBOX_EXECUTE_IOCB64 */
522 0x00, /* 0x0055 */
523 0x00, /* 0x0056 */
524 0x00, /* 0x0057 */
525 0x00, /* 0x0058 */
526 0x00, /* 0x0059 */
527 0x00, /* 0x005a */
528 0x00, /* 0x005b */
529 0x00, /* 0x005c */
530 0x00, /* 0x005d */
531 0x00, /* 0x005e */
532 0x00, /* 0x005f */
533 0xff, /* MBOX_INIT_FIRMWARE */
534 0xcd, /* MBOX_GET_INIT_CB */
535 0x01, /* MBOX_INIT_LIP */
536 0xcd, /* MBOX_GET_POS_MAP */
537 0xcf, /* MBOX_GET_PORT_DB */
538 0x03, /* MBOX_CLEAR_ACA */
539 0x03, /* MBOX_TARGET_RESET */
540 0x03, /* MBOX_CLEAR_TASK_SET */
541 0x03, /* MBOX_ABORT_TASK_SET */
542 0x01, /* MBOX_GET_FIRMWARE_STATE */
543 0x03, /* MBOX_GET_PORT_NAME */
544 0x00, /* 0x006b */
545 0x00, /* 0x006c */
546 0x00, /* 0x006d */
547 0xcf, /* MBOX_SEND_SNS */
548 0x0f, /* MBOX_PORT_LOGIN */
549 0x03, /* MBOX_SEND_CHANGE_REQUEST */
550 0x03, /* MBOX_PORT_LOGOUT */
551 };
552
553 #define MAX_MBOX_COMMAND (sizeof(mbox_param)/sizeof(u_short))
554
555
556 struct id_name_map {
557 u64 wwn;
558 u_char loop_id;
559 };
560
561 struct sns_cb {
562 u_short len;
563 u_short res1;
564 u_int response_low;
565 u_int response_high;
566 u_short sub_len;
567 u_short res2;
568 u_char data[44];
569 };
570
571 /* address of instance of this struct is passed to adapter to initialize things
572 */
573 struct init_cb {
574 u_char version;
575 u_char reseverd1[1];
576 u_short firm_opts;
577 u_short max_frame_len;
578 u_short max_iocb;
579 u_short exec_throttle;
580 u_char retry_cnt;
581 u_char retry_delay;
582 u_short node_name[4];
583 u_short hard_addr;
584 u_char reserved2[10];
585 u_short req_queue_out;
586 u_short res_queue_in;
587 u_short req_queue_len;
588 u_short res_queue_len;
589 u_int req_queue_addr_lo;
590 u_int req_queue_addr_high;
591 u_int res_queue_addr_lo;
592 u_int res_queue_addr_high;
593 /* the rest of this structure only applies to the isp2200 */
594 u_short lun_enables;
595 u_char cmd_resource_cnt;
596 u_char notify_resource_cnt;
597 u_short timeout;
598 u_short reserved3;
599 u_short add_firm_opts;
600 u_char res_accum_timer;
601 u_char irq_delay_timer;
602 u_short special_options;
603 u_short reserved4[13];
604 };
605
606 /*
607 * The result queue can be quite a bit smaller since continuation entries
608 * do not show up there:
609 */
610 #define RES_QUEUE_LEN ((QLOGICFC_REQ_QUEUE_LEN + 1) / 8 - 1)
611 #define QUEUE_ENTRY_LEN 64
612
613 #if ISP2x00_FABRIC
614 #define QLOGICFC_MAX_ID 0xff
615 #else
616 #define QLOGICFC_MAX_ID 0x7d
617 #endif
618
619 #define QLOGICFC_MAX_LUN 128
620 #define QLOGICFC_MAX_LOOP_ID 0x7d
621
622 /* the following connection options only apply to the 2200. i have only
623 * had success with LOOP_ONLY and P2P_ONLY.
624 */
625
626 #define LOOP_ONLY 0
627 #define P2P_ONLY 1
628 #define LOOP_PREFERED 2
629 #define P2P_PREFERED 3
630
631 #define CONNECTION_PREFERENCE LOOP_ONLY
632
633 /* adapter_state values */
634 #define AS_FIRMWARE_DEAD -1
635 #define AS_LOOP_DOWN 0
636 #define AS_LOOP_GOOD 1
637 #define AS_REDO_FABRIC_PORTDB 2
638 #define AS_REDO_LOOP_PORTDB 4
639
640 #define RES_SIZE ((RES_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN)
641 #define REQ_SIZE ((QLOGICFC_REQ_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN)
642
643 struct isp2x00_hostdata {
644 u_char revision;
645 struct pci_dev *pci_dev;
646 /* result and request queues (shared with isp2x00): */
647 u_int req_in_ptr; /* index of next request slot */
648 u_int res_out_ptr; /* index of next result slot */
649
650 /* this is here so the queues are nicely aligned */
651 long send_marker; /* do we need to send a marker? */
652
653 char * res;
654 char * req;
655 struct init_cb control_block;
656 int adapter_state;
657 unsigned long int tag_ages[QLOGICFC_MAX_ID + 1];
658 Scsi_Cmnd *handle_ptrs[QLOGICFC_REQ_QUEUE_LEN + 1];
659 unsigned long handle_serials[QLOGICFC_REQ_QUEUE_LEN + 1];
660 struct id_name_map port_db[QLOGICFC_MAX_ID + 1];
661 u_char mbox_done;
662 u64 wwn;
663 u_int port_id;
664 u_char queued;
665 u_char host_id;
666 struct timer_list explore_timer;
667 struct id_name_map tempmap[QLOGICFC_MAX_ID + 1];
668 };
669
670
671 /* queue length's _must_ be power of two: */
672 #define QUEUE_DEPTH(in, out, ql) ((in - out) & (ql))
673 #define REQ_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, \
674 QLOGICFC_REQ_QUEUE_LEN)
675 #define RES_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, RES_QUEUE_LEN)
676
677 static void isp2x00_enable_irqs(struct Scsi_Host *);
678 static void isp2x00_disable_irqs(struct Scsi_Host *);
679 static int isp2x00_init(struct Scsi_Host *);
680 static int isp2x00_reset_hardware(struct Scsi_Host *);
681 static int isp2x00_mbox_command(struct Scsi_Host *, u_short[]);
682 static int isp2x00_return_status(Scsi_Cmnd *, struct Status_Entry *);
683 static void isp2x00_intr_handler(int, void *, struct pt_regs *);
684 static irqreturn_t do_isp2x00_intr_handler(int, void *, struct pt_regs *);
685 static int isp2x00_make_portdb(struct Scsi_Host *);
686
687 #if ISP2x00_FABRIC
688 static int isp2x00_init_fabric(struct Scsi_Host *, struct id_name_map *, int);
689 #endif
690
691 #if USE_NVRAM_DEFAULTS
692 static int isp2x00_get_nvram_defaults(struct Scsi_Host *, struct init_cb *);
693 static u_short isp2x00_read_nvram_word(struct Scsi_Host *, u_short);
694 #endif
695
696 #if DEBUG_ISP2x00
697 static void isp2x00_print_scsi_cmd(Scsi_Cmnd *);
698 #endif
699
700 #if DEBUG_ISP2x00_INTR
701 static void isp2x00_print_status_entry(struct Status_Entry *);
702 #endif
703
704 static inline void isp2x00_enable_irqs(struct Scsi_Host *host)
705 {
706 outw(ISP_EN_INT | ISP_EN_RISC, host->io_port + PCI_INTER_CTL);
707 }
708
709
710 static inline void isp2x00_disable_irqs(struct Scsi_Host *host)
711 {
712 outw(0x0, host->io_port + PCI_INTER_CTL);
713 }
714
715
716 static int isp2x00_detect(struct scsi_host_template * tmpt)
717 {
718 int hosts = 0;
719 unsigned long wait_time;
720 struct Scsi_Host *host = NULL;
721 struct isp2x00_hostdata *hostdata;
722 struct pci_dev *pdev;
723 unsigned short device_ids[2];
724 dma_addr_t busaddr;
725 int i;
726
727
728 ENTER("isp2x00_detect");
729
730 device_ids[0] = PCI_DEVICE_ID_QLOGIC_ISP2100;
731 device_ids[1] = PCI_DEVICE_ID_QLOGIC_ISP2200;
732
733 tmpt->proc_name = "isp2x00";
734
735 for (i=0; i<2; i++){
736 pdev = NULL;
737 while ((pdev = pci_find_device(PCI_VENDOR_ID_QLOGIC, device_ids[i], pdev))) {
738 if (pci_enable_device(pdev))
739 continue;
740
741 /* Try to configure DMA attributes. */
742 if (pci_set_dma_mask(pdev, DMA_64BIT_MASK) &&
743 pci_set_dma_mask(pdev, DMA_32BIT_MASK))
744 continue;
745
746 host = scsi_register(tmpt, sizeof(struct isp2x00_hostdata));
747 if (!host) {
748 printk("qlogicfc%d : could not register host.\n", hosts);
749 continue;
750 }
751 host->max_id = QLOGICFC_MAX_ID + 1;
752 host->max_lun = QLOGICFC_MAX_LUN;
753 hostdata = (struct isp2x00_hostdata *) host->hostdata;
754
755 memset(hostdata, 0, sizeof(struct isp2x00_hostdata));
756 hostdata->pci_dev = pdev;
757 hostdata->res = pci_alloc_consistent(pdev, RES_SIZE + REQ_SIZE, &busaddr);
758
759 if (!hostdata->res){
760 printk("qlogicfc%d : could not allocate memory for request and response queue.\n", hosts);
761 scsi_unregister(host);
762 continue;
763 }
764 hostdata->req = hostdata->res + (RES_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN;
765 hostdata->queued = 0;
766 /* set up the control block */
767 hostdata->control_block.version = 0x1;
768 hostdata->control_block.firm_opts = cpu_to_le16(0x800e);
769 hostdata->control_block.max_frame_len = cpu_to_le16(2048);
770 hostdata->control_block.max_iocb = cpu_to_le16(QLOGICFC_REQ_QUEUE_LEN);
771 hostdata->control_block.exec_throttle = cpu_to_le16(QLOGICFC_CMD_PER_LUN);
772 hostdata->control_block.retry_delay = 5;
773 hostdata->control_block.retry_cnt = 1;
774 hostdata->control_block.node_name[0] = cpu_to_le16(0x0020);
775 hostdata->control_block.node_name[1] = cpu_to_le16(0xE000);
776 hostdata->control_block.node_name[2] = cpu_to_le16(0x008B);
777 hostdata->control_block.node_name[3] = cpu_to_le16(0x0000);
778 hostdata->control_block.hard_addr = cpu_to_le16(0x0003);
779 hostdata->control_block.req_queue_len = cpu_to_le16(QLOGICFC_REQ_QUEUE_LEN + 1);
780 hostdata->control_block.res_queue_len = cpu_to_le16(RES_QUEUE_LEN + 1);
781 hostdata->control_block.res_queue_addr_lo = cpu_to_le32(pci64_dma_lo32(busaddr));
782 hostdata->control_block.res_queue_addr_high = cpu_to_le32(pci64_dma_hi32(busaddr));
783 hostdata->control_block.req_queue_addr_lo = cpu_to_le32(pci64_dma_lo32(busaddr + RES_SIZE));
784 hostdata->control_block.req_queue_addr_high = cpu_to_le32(pci64_dma_hi32(busaddr + RES_SIZE));
785
786
787 hostdata->control_block.add_firm_opts |= cpu_to_le16(CONNECTION_PREFERENCE<<4);
788 hostdata->adapter_state = AS_LOOP_DOWN;
789 hostdata->explore_timer.data = 1;
790 hostdata->host_id = hosts;
791
792 if (isp2x00_init(host) || isp2x00_reset_hardware(host)) {
793 pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
794 scsi_unregister(host);
795 continue;
796 }
797 host->this_id = 0;
798
799 if (request_irq(host->irq, do_isp2x00_intr_handler, SA_INTERRUPT | SA_SHIRQ, "qlogicfc", host)) {
800 printk("qlogicfc%d : interrupt %d already in use\n",
801 hostdata->host_id, host->irq);
802 pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
803 scsi_unregister(host);
804 continue;
805 }
806 if (!request_region(host->io_port, 0xff, "qlogicfc")) {
807 printk("qlogicfc%d : i/o region 0x%lx-0x%lx already "
808 "in use\n",
809 hostdata->host_id, host->io_port, host->io_port + 0xff);
810 free_irq(host->irq, host);
811 pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
812 scsi_unregister(host);
813 continue;
814 }
815
816 outw(0x0, host->io_port + PCI_SEMAPHORE);
817 outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
818 isp2x00_enable_irqs(host);
819 /* wait for the loop to come up */
820 for (wait_time = jiffies + 10 * HZ; time_before(jiffies, wait_time) && hostdata->adapter_state == AS_LOOP_DOWN;) {
821 barrier();
822 cpu_relax();
823 }
824 if (hostdata->adapter_state == AS_LOOP_DOWN) {
825 printk("qlogicfc%d : link is not up\n", hostdata->host_id);
826 }
827 hosts++;
828 hostdata->explore_timer.data = 0;
829 }
830 }
831
832
833 /* this busy loop should not be needed but the isp2x00 seems to need
834 some time before recognizing it is attached to a fabric */
835
836 #if ISP2x00_FABRIC
837 if (hosts) {
838 for (wait_time = jiffies + 5 * HZ; time_before(jiffies, wait_time);) {
839 barrier();
840 cpu_relax();
841 }
842 }
843 #endif
844
845 LEAVE("isp2x00_detect");
846
847 return hosts;
848 }
849
850
851 static int isp2x00_make_portdb(struct Scsi_Host *host)
852 {
853
854 short param[8];
855 int i, j;
856 struct isp2x00_hostdata *hostdata;
857
858 isp2x00_disable_irqs(host);
859
860 hostdata = (struct isp2x00_hostdata *) host->hostdata;
861 memset(hostdata->tempmap, 0, sizeof(hostdata->tempmap));
862
863 #if ISP2x00_FABRIC
864 for (i = 0x81; i < QLOGICFC_MAX_ID; i++) {
865 param[0] = MBOX_PORT_LOGOUT;
866 param[1] = i << 8;
867 param[2] = 0;
868 param[3] = 0;
869
870 isp2x00_mbox_command(host, param);
871
872 if (param[0] != MBOX_COMMAND_COMPLETE) {
873
874 DEBUG_FABRIC(printk("qlogicfc%d : logout failed %x %x\n", hostdata->host_id, i, param[0]));
875 }
876 }
877 #endif
878
879
880 param[0] = MBOX_GET_INIT_SCSI_ID;
881
882 isp2x00_mbox_command(host, param);
883
884 if (param[0] == MBOX_COMMAND_COMPLETE) {
885 hostdata->port_id = ((u_int) param[3]) << 16;
886 hostdata->port_id |= param[2];
887 hostdata->tempmap[0].loop_id = param[1];
888 hostdata->tempmap[0].wwn = hostdata->wwn;
889 }
890 else {
891 printk("qlogicfc%d : error getting scsi id.\n", hostdata->host_id);
892 }
893
894 for (i = 0; i <=QLOGICFC_MAX_ID; i++)
895 hostdata->tempmap[i].loop_id = hostdata->tempmap[0].loop_id;
896
897 for (i = 0, j = 1; i <= QLOGICFC_MAX_LOOP_ID; i++) {
898 param[0] = MBOX_GET_PORT_NAME;
899 param[1] = (i << 8) & 0xff00;
900
901 isp2x00_mbox_command(host, param);
902
903 if (param[0] == MBOX_COMMAND_COMPLETE) {
904 hostdata->tempmap[j].loop_id = i;
905 hostdata->tempmap[j].wwn = ((u64) (param[2] & 0xff)) << 56;
906 hostdata->tempmap[j].wwn |= ((u64) ((param[2] >> 8) & 0xff)) << 48;
907 hostdata->tempmap[j].wwn |= ((u64) (param[3] & 0xff)) << 40;
908 hostdata->tempmap[j].wwn |= ((u64) ((param[3] >> 8) & 0xff)) << 32;
909 hostdata->tempmap[j].wwn |= ((u64) (param[6] & 0xff)) << 24;
910 hostdata->tempmap[j].wwn |= ((u64) ((param[6] >> 8) & 0xff)) << 16;
911 hostdata->tempmap[j].wwn |= ((u64) (param[7] & 0xff)) << 8;
912 hostdata->tempmap[j].wwn |= ((u64) ((param[7] >> 8) & 0xff));
913
914 j++;
915
916 }
917 }
918
919
920 #if ISP2x00_FABRIC
921 isp2x00_init_fabric(host, hostdata->tempmap, j);
922 #endif
923
924 for (i = 0; i <= QLOGICFC_MAX_ID; i++) {
925 if (hostdata->tempmap[i].wwn != hostdata->port_db[i].wwn) {
926 for (j = 0; j <= QLOGICFC_MAX_ID; j++) {
927 if (hostdata->tempmap[j].wwn == hostdata->port_db[i].wwn) {
928 hostdata->port_db[i].loop_id = hostdata->tempmap[j].loop_id;
929 break;
930 }
931 }
932 if (j == QLOGICFC_MAX_ID + 1)
933 hostdata->port_db[i].loop_id = hostdata->tempmap[0].loop_id;
934
935 for (j = 0; j <= QLOGICFC_MAX_ID; j++) {
936 if (hostdata->port_db[j].wwn == hostdata->tempmap[i].wwn || !hostdata->port_db[j].wwn) {
937 break;
938 }
939 }
940 if (j == QLOGICFC_MAX_ID + 1)
941 printk("qlogicfc%d : Too many scsi devices, no more room in port map.\n", hostdata->host_id);
942 if (!hostdata->port_db[j].wwn) {
943 hostdata->port_db[j].loop_id = hostdata->tempmap[i].loop_id;
944 hostdata->port_db[j].wwn = hostdata->tempmap[i].wwn;
945 }
946 } else
947 hostdata->port_db[i].loop_id = hostdata->tempmap[i].loop_id;
948
949 }
950
951 isp2x00_enable_irqs(host);
952
953 return 0;
954 }
955
956
957 #if ISP2x00_FABRIC
958
959 #define FABRIC_PORT 0x7e
960 #define FABRIC_CONTROLLER 0x7f
961 #define FABRIC_SNS 0x80
962
963 int isp2x00_init_fabric(struct Scsi_Host *host, struct id_name_map *port_db, int cur_scsi_id)
964 {
965
966 u_short param[8];
967 u64 wwn;
968 int done = 0;
969 u_short loop_id = 0x81;
970 u_short scsi_id = cur_scsi_id;
971 u_int port_id;
972 struct sns_cb *req;
973 u_char *sns_response;
974 dma_addr_t busaddr;
975 struct isp2x00_hostdata *hostdata;
976
977 hostdata = (struct isp2x00_hostdata *) host->hostdata;
978
979 DEBUG_FABRIC(printk("qlogicfc%d : Checking for a fabric.\n", hostdata->host_id));
980 param[0] = MBOX_GET_PORT_NAME;
981 param[1] = (u16)FABRIC_PORT << 8;
982
983 isp2x00_mbox_command(host, param);
984
985 if (param[0] != MBOX_COMMAND_COMPLETE) {
986 DEBUG_FABRIC(printk("qlogicfc%d : fabric check result %x\n", hostdata->host_id, param[0]));
987 return 0;
988 }
989 printk("qlogicfc%d : Fabric found.\n", hostdata->host_id);
990
991 req = (struct sns_cb *)pci_alloc_consistent(hostdata->pci_dev, sizeof(*req) + 608, &busaddr);
992
993 if (!req){
994 printk("qlogicfc%d : Could not allocate DMA resources for fabric initialization\n", hostdata->host_id);
995 return 0;
996 }
997 sns_response = (u_char *)(req + 1);
998
999 if (hostdata->adapter_state & AS_REDO_LOOP_PORTDB){
1000 memset(req, 0, sizeof(*req));
1001
1002 req->len = cpu_to_le16(8);
1003 req->response_low = cpu_to_le32(pci64_dma_lo32(busaddr + sizeof(*req)));
1004 req->response_high = cpu_to_le32(pci64_dma_hi32(busaddr + sizeof(*req)));
1005 req->sub_len = cpu_to_le16(22);
1006 req->data[0] = 0x17;
1007 req->data[1] = 0x02;
1008 req->data[8] = (u_char) (hostdata->port_id & 0xff);
1009 req->data[9] = (u_char) (hostdata->port_id >> 8 & 0xff);
1010 req->data[10] = (u_char) (hostdata->port_id >> 16 & 0xff);
1011 req->data[13] = 0x01;
1012 param[0] = MBOX_SEND_SNS;
1013 param[1] = 30;
1014 param[2] = pci64_dma_lo32(busaddr) >> 16;
1015 param[3] = pci64_dma_lo32(busaddr);
1016 param[6] = pci64_dma_hi32(busaddr) >> 16;
1017 param[7] = pci64_dma_hi32(busaddr);
1018
1019 isp2x00_mbox_command(host, param);
1020
1021 if (param[0] != MBOX_COMMAND_COMPLETE)
1022 printk("qlogicfc%d : error sending RFC-4\n", hostdata->host_id);
1023 }
1024
1025 port_id = hostdata->port_id;
1026 while (!done) {
1027 memset(req, 0, sizeof(*req));
1028
1029 req->len = cpu_to_le16(304);
1030 req->response_low = cpu_to_le32(pci64_dma_lo32(busaddr + sizeof(*req)));
1031 req->response_high = cpu_to_le32(pci64_dma_hi32(busaddr + sizeof(*req)));
1032 req->sub_len = cpu_to_le16(6);
1033 req->data[0] = 0x00;
1034 req->data[1] = 0x01;
1035 req->data[8] = (u_char) (port_id & 0xff);
1036 req->data[9] = (u_char) (port_id >> 8 & 0xff);
1037 req->data[10] = (u_char) (port_id >> 16 & 0xff);
1038
1039 param[0] = MBOX_SEND_SNS;
1040 param[1] = 14;
1041 param[2] = pci64_dma_lo32(busaddr) >> 16;
1042 param[3] = pci64_dma_lo32(busaddr);
1043 param[6] = pci64_dma_hi32(busaddr) >> 16;
1044 param[7] = pci64_dma_hi32(busaddr);
1045
1046 isp2x00_mbox_command(host, param);
1047
1048 if (param[0] == MBOX_COMMAND_COMPLETE) {
1049 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]));
1050 DEBUG_FABRIC(printk(" port id: %02x%02x%02x\n", sns_response[17], sns_response[18], sns_response[19]));
1051 port_id = ((u_int) sns_response[17]) << 16;
1052 port_id |= ((u_int) sns_response[18]) << 8;
1053 port_id |= ((u_int) sns_response[19]);
1054 wwn = ((u64) sns_response[20]) << 56;
1055 wwn |= ((u64) sns_response[21]) << 48;
1056 wwn |= ((u64) sns_response[22]) << 40;
1057 wwn |= ((u64) sns_response[23]) << 32;
1058 wwn |= ((u64) sns_response[24]) << 24;
1059 wwn |= ((u64) sns_response[25]) << 16;
1060 wwn |= ((u64) sns_response[26]) << 8;
1061 wwn |= ((u64) sns_response[27]);
1062 if (hostdata->port_id >> 8 != port_id >> 8) {
1063 DEBUG_FABRIC(printk("qlogicfc%d : adding a fabric port: %x\n", hostdata->host_id, port_id));
1064 param[0] = MBOX_PORT_LOGIN;
1065 param[1] = loop_id << 8;
1066 param[2] = (u_short) (port_id >> 16);
1067 param[3] = (u_short) (port_id);
1068
1069 isp2x00_mbox_command(host, param);
1070
1071 if (param[0] == MBOX_COMMAND_COMPLETE) {
1072 port_db[scsi_id].wwn = wwn;
1073 port_db[scsi_id].loop_id = loop_id;
1074 loop_id++;
1075 scsi_id++;
1076 } else {
1077 printk("qlogicfc%d : Error performing port login %x\n", hostdata->host_id, param[0]);
1078 DEBUG_FABRIC(printk("qlogicfc%d : loop_id: %x\n", hostdata->host_id, loop_id));
1079 param[0] = MBOX_PORT_LOGOUT;
1080 param[1] = loop_id << 8;
1081 param[2] = 0;
1082 param[3] = 0;
1083
1084 isp2x00_mbox_command(host, param);
1085
1086 }
1087
1088 }
1089 if (hostdata->port_id == port_id)
1090 done = 1;
1091 } else {
1092 printk("qlogicfc%d : Get All Next failed %x.\n", hostdata->host_id, param[0]);
1093 pci_free_consistent(hostdata->pci_dev, sizeof(*req) + 608, req, busaddr);
1094 return 0;
1095 }
1096 }
1097
1098 pci_free_consistent(hostdata->pci_dev, sizeof(*req) + 608, req, busaddr);
1099 return 1;
1100 }
1101
1102 #endif /* ISP2x00_FABRIC */
1103
1104
1105 static int isp2x00_release(struct Scsi_Host *host)
1106 {
1107 struct isp2x00_hostdata *hostdata;
1108 dma_addr_t busaddr;
1109
1110 ENTER("isp2x00_release");
1111
1112 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1113
1114 outw(0x0, host->io_port + PCI_INTER_CTL);
1115 free_irq(host->irq, host);
1116
1117 release_region(host->io_port, 0xff);
1118
1119 busaddr = pci64_dma_build(le32_to_cpu(hostdata->control_block.res_queue_addr_high),
1120 le32_to_cpu(hostdata->control_block.res_queue_addr_lo));
1121 pci_free_consistent(hostdata->pci_dev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
1122
1123 LEAVE("isp2x00_release");
1124
1125 return 0;
1126 }
1127
1128
1129 static const char *isp2x00_info(struct Scsi_Host *host)
1130 {
1131 static char buf[80];
1132 struct isp2x00_hostdata *hostdata;
1133 ENTER("isp2x00_info");
1134
1135 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1136 sprintf(buf,
1137 "QLogic ISP%04x SCSI on PCI bus %02x device %02x irq %d base 0x%lx",
1138 hostdata->pci_dev->device, hostdata->pci_dev->bus->number, hostdata->pci_dev->devfn, host->irq,
1139 host->io_port);
1140
1141
1142 LEAVE("isp2x00_info");
1143
1144 return buf;
1145 }
1146
1147
1148 /*
1149 * The middle SCSI layer ensures that queuecommand never gets invoked
1150 * concurrently with itself or the interrupt handler (though the
1151 * interrupt handler may call this routine as part of
1152 * request-completion handling).
1153 */
1154 static int isp2x00_queuecommand(Scsi_Cmnd * Cmnd, void (*done) (Scsi_Cmnd *))
1155 {
1156 int i, sg_count, n, num_free;
1157 u_int in_ptr, out_ptr;
1158 struct dataseg *ds;
1159 struct scatterlist *sg;
1160 struct Command_Entry *cmd;
1161 struct Continuation_Entry *cont;
1162 struct Scsi_Host *host;
1163 struct isp2x00_hostdata *hostdata;
1164
1165 ENTER("isp2x00_queuecommand");
1166
1167 host = Cmnd->device->host;
1168 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1169 Cmnd->scsi_done = done;
1170
1171 DEBUG(isp2x00_print_scsi_cmd(Cmnd));
1172
1173 if (hostdata->adapter_state & AS_REDO_FABRIC_PORTDB || hostdata->adapter_state & AS_REDO_LOOP_PORTDB) {
1174 isp2x00_make_portdb(host);
1175 hostdata->adapter_state = AS_LOOP_GOOD;
1176 printk("qlogicfc%d : Port Database\n", hostdata->host_id);
1177 for (i = 0; hostdata->port_db[i].wwn != 0; i++) {
1178 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);
1179 if (hostdata->port_db[i].loop_id != hostdata->port_db[0].loop_id || i == 0)
1180 printk("%x", hostdata->port_db[i].loop_id);
1181 else
1182 printk("Not Available");
1183 printk("\n");
1184 }
1185 }
1186 if (hostdata->adapter_state == AS_FIRMWARE_DEAD) {
1187 printk("qlogicfc%d : The firmware is dead, just return.\n", hostdata->host_id);
1188 host->max_id = 0;
1189 return 0;
1190 }
1191
1192 out_ptr = inw(host->io_port + MBOX4);
1193 in_ptr = hostdata->req_in_ptr;
1194
1195 DEBUG(printk("qlogicfc%d : request queue depth %d\n", hostdata->host_id,
1196 REQ_QUEUE_DEPTH(in_ptr, out_ptr)));
1197
1198 cmd = (struct Command_Entry *) &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
1199 in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
1200 if (in_ptr == out_ptr) {
1201 DEBUG(printk("qlogicfc%d : request queue overflow\n", hostdata->host_id));
1202 return 1;
1203 }
1204 if (hostdata->send_marker) {
1205 struct Marker_Entry *marker;
1206
1207 TRACE("queue marker", in_ptr, 0);
1208
1209 DEBUG(printk("qlogicfc%d : adding marker entry\n", hostdata->host_id));
1210 marker = (struct Marker_Entry *) cmd;
1211 memset(marker, 0, sizeof(struct Marker_Entry));
1212
1213 marker->hdr.entry_type = ENTRY_MARKER;
1214 marker->hdr.entry_cnt = 1;
1215 marker->modifier = SYNC_ALL;
1216
1217 hostdata->send_marker = 0;
1218
1219 if (((in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN) == out_ptr) {
1220 outw(in_ptr, host->io_port + MBOX4);
1221 hostdata->req_in_ptr = in_ptr;
1222 DEBUG(printk("qlogicfc%d : request queue overflow\n", hostdata->host_id));
1223 return 1;
1224 }
1225 cmd = (struct Command_Entry *) &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
1226 in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
1227 }
1228 TRACE("queue command", in_ptr, Cmnd);
1229
1230 memset(cmd, 0, sizeof(struct Command_Entry));
1231
1232 /* find a free handle mapping slot */
1233 for (i = in_ptr; i != (in_ptr - 1) && hostdata->handle_ptrs[i]; i = ((i + 1) % (QLOGICFC_REQ_QUEUE_LEN + 1)));
1234
1235 if (!hostdata->handle_ptrs[i]) {
1236 cmd->handle = cpu_to_le32(i);
1237 hostdata->handle_ptrs[i] = Cmnd;
1238 hostdata->handle_serials[i] = Cmnd->serial_number;
1239 } else {
1240 printk("qlogicfc%d : no handle slots, this should not happen.\n", hostdata->host_id);
1241 printk("hostdata->queued is %x, in_ptr: %x\n", hostdata->queued, in_ptr);
1242 for (i = 0; i <= QLOGICFC_REQ_QUEUE_LEN; i++){
1243 if (!hostdata->handle_ptrs[i]){
1244 printk("slot %d has %p\n", i, hostdata->handle_ptrs[i]);
1245 }
1246 }
1247 return 1;
1248 }
1249
1250 cmd->hdr.entry_type = ENTRY_COMMAND;
1251 cmd->hdr.entry_cnt = 1;
1252 cmd->target_lun = Cmnd->device->lun;
1253 cmd->expanded_lun = cpu_to_le16(Cmnd->device->lun);
1254 #if ISP2x00_PORTDB
1255 cmd->target_id = hostdata->port_db[Cmnd->device->id].loop_id;
1256 #else
1257 cmd->target_id = Cmnd->target;
1258 #endif
1259 cmd->total_byte_cnt = cpu_to_le32(Cmnd->request_bufflen);
1260 cmd->time_out = 0;
1261 memcpy(cmd->cdb, Cmnd->cmnd, Cmnd->cmd_len);
1262
1263 if (Cmnd->use_sg) {
1264 sg = (struct scatterlist *) Cmnd->request_buffer;
1265 sg_count = pci_map_sg(hostdata->pci_dev, sg, Cmnd->use_sg, Cmnd->sc_data_direction);
1266 cmd->segment_cnt = cpu_to_le16(sg_count);
1267 ds = cmd->dataseg;
1268 /* fill in first two sg entries: */
1269 n = sg_count;
1270 if (n > DATASEGS_PER_COMMAND)
1271 n = DATASEGS_PER_COMMAND;
1272
1273 for (i = 0; i < n; i++) {
1274 ds[i].d_base = cpu_to_le32(pci64_dma_lo32(sg_dma_address(sg)));
1275 ds[i].d_base_hi = cpu_to_le32(pci64_dma_hi32(sg_dma_address(sg)));
1276 ds[i].d_count = cpu_to_le32(sg_dma_len(sg));
1277 ++sg;
1278 }
1279 sg_count -= DATASEGS_PER_COMMAND;
1280
1281 while (sg_count > 0) {
1282 ++cmd->hdr.entry_cnt;
1283 cont = (struct Continuation_Entry *)
1284 &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
1285 memset(cont, 0, sizeof(struct Continuation_Entry));
1286 in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
1287 if (in_ptr == out_ptr) {
1288 DEBUG(printk("qlogicfc%d : unexpected request queue overflow\n", hostdata->host_id));
1289 return 1;
1290 }
1291 TRACE("queue continuation", in_ptr, 0);
1292 cont->hdr.entry_type = ENTRY_CONTINUATION;
1293 ds = cont->dataseg;
1294 n = sg_count;
1295 if (n > DATASEGS_PER_CONT)
1296 n = DATASEGS_PER_CONT;
1297 for (i = 0; i < n; ++i) {
1298 ds[i].d_base = cpu_to_le32(pci64_dma_lo32(sg_dma_address(sg)));
1299 ds[i].d_base_hi = cpu_to_le32(pci64_dma_hi32(sg_dma_address(sg)));
1300 ds[i].d_count = cpu_to_le32(sg_dma_len(sg));
1301 ++sg;
1302 }
1303 sg_count -= n;
1304 }
1305 } else if (Cmnd->request_bufflen && Cmnd->sc_data_direction != PCI_DMA_NONE) {
1306 struct page *page = virt_to_page(Cmnd->request_buffer);
1307 unsigned long offset = offset_in_page(Cmnd->request_buffer);
1308 dma_addr_t busaddr = pci_map_page(hostdata->pci_dev,
1309 page, offset,
1310 Cmnd->request_bufflen,
1311 Cmnd->sc_data_direction);
1312 Cmnd->SCp.dma_handle = busaddr;
1313
1314 cmd->dataseg[0].d_base = cpu_to_le32(pci64_dma_lo32(busaddr));
1315 cmd->dataseg[0].d_base_hi = cpu_to_le32(pci64_dma_hi32(busaddr));
1316 cmd->dataseg[0].d_count = cpu_to_le32(Cmnd->request_bufflen);
1317 cmd->segment_cnt = cpu_to_le16(1);
1318 } else {
1319 cmd->dataseg[0].d_base = 0;
1320 cmd->dataseg[0].d_base_hi = 0;
1321 cmd->segment_cnt = cpu_to_le16(1); /* Shouldn't this be 0? */
1322 }
1323
1324 if (Cmnd->sc_data_direction == DMA_TO_DEVICE)
1325 cmd->control_flags = cpu_to_le16(CFLAG_WRITE);
1326 else
1327 cmd->control_flags = cpu_to_le16(CFLAG_READ);
1328
1329 if (Cmnd->device->tagged_supported) {
1330 if (time_after(jiffies, hostdata->tag_ages[Cmnd->device->id] + (2 * ISP_TIMEOUT))) {
1331 cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG);
1332 hostdata->tag_ages[Cmnd->device->id] = jiffies;
1333 } else
1334 switch (Cmnd->tag) {
1335 case HEAD_OF_QUEUE_TAG:
1336 cmd->control_flags |= cpu_to_le16(CFLAG_HEAD_TAG);
1337 break;
1338 case ORDERED_QUEUE_TAG:
1339 cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG);
1340 break;
1341 default:
1342 cmd->control_flags |= cpu_to_le16(CFLAG_SIMPLE_TAG);
1343 break;
1344 }
1345 }
1346 /*
1347 * TEST_UNIT_READY commands from scsi_scan will fail due to "overlapped
1348 * commands attempted" unless we setup at least a simple queue (midlayer
1349 * will embelish this once it can do an INQUIRY command to the device)
1350 */
1351 else
1352 cmd->control_flags |= cpu_to_le16(CFLAG_SIMPLE_TAG);
1353 outw(in_ptr, host->io_port + MBOX4);
1354 hostdata->req_in_ptr = in_ptr;
1355
1356 hostdata->queued++;
1357
1358 num_free = QLOGICFC_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr);
1359 num_free = (num_free > 2) ? num_free - 2 : 0;
1360 host->can_queue = host->host_busy + num_free;
1361 if (host->can_queue > QLOGICFC_REQ_QUEUE_LEN)
1362 host->can_queue = QLOGICFC_REQ_QUEUE_LEN;
1363 host->sg_tablesize = QLOGICFC_MAX_SG(num_free);
1364
1365 LEAVE("isp2x00_queuecommand");
1366
1367 return 0;
1368 }
1369
1370
1371 /* we have received an event, such as a lip or an RSCN, which may mean that
1372 * our port database is incorrect so the port database must be recreated.
1373 */
1374 static void redo_port_db(unsigned long arg)
1375 {
1376
1377 struct Scsi_Host * host = (struct Scsi_Host *) arg;
1378 struct isp2x00_hostdata * hostdata;
1379 unsigned long flags;
1380 int i;
1381
1382 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1383 hostdata->explore_timer.data = 0;
1384 del_timer(&hostdata->explore_timer);
1385
1386 spin_lock_irqsave(host->host_lock, flags);
1387
1388 if (hostdata->adapter_state & AS_REDO_FABRIC_PORTDB || hostdata->adapter_state & AS_REDO_LOOP_PORTDB) {
1389 isp2x00_make_portdb(host);
1390 printk("qlogicfc%d : Port Database\n", hostdata->host_id);
1391 for (i = 0; hostdata->port_db[i].wwn != 0; i++) {
1392 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);
1393 if (hostdata->port_db[i].loop_id != hostdata->port_db[0].loop_id || i == 0)
1394 printk("%x", hostdata->port_db[i].loop_id);
1395 else
1396 printk("Not Available");
1397 printk("\n");
1398 }
1399
1400 for (i = 0; i < QLOGICFC_REQ_QUEUE_LEN; i++){
1401 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)){
1402 if (hostdata->port_db[hostdata->handle_ptrs[i]->device->id].loop_id != hostdata->port_db[0].loop_id){
1403 Scsi_Cmnd *Cmnd = hostdata->handle_ptrs[i];
1404
1405 if (Cmnd->use_sg)
1406 pci_unmap_sg(hostdata->pci_dev,
1407 (struct scatterlist *)Cmnd->buffer,
1408 Cmnd->use_sg,
1409 Cmnd->sc_data_direction);
1410 else if (Cmnd->request_bufflen &&
1411 Cmnd->sc_data_direction != PCI_DMA_NONE) {
1412 pci_unmap_page(hostdata->pci_dev,
1413 Cmnd->SCp.dma_handle,
1414 Cmnd->request_bufflen,
1415 Cmnd->sc_data_direction);
1416 }
1417
1418 hostdata->handle_ptrs[i]->result = DID_SOFT_ERROR << 16;
1419
1420 if (hostdata->handle_ptrs[i]->scsi_done){
1421 (*hostdata->handle_ptrs[i]->scsi_done) (hostdata->handle_ptrs[i]);
1422 }
1423 else printk("qlogicfc%d : done is null?\n", hostdata->host_id);
1424 hostdata->handle_ptrs[i] = NULL;
1425 hostdata->handle_serials[i] = 0;
1426 }
1427 }
1428 }
1429
1430 hostdata->adapter_state = AS_LOOP_GOOD;
1431 }
1432
1433 spin_unlock_irqrestore(host->host_lock, flags);
1434
1435 }
1436
1437 #define ASYNC_EVENT_INTERRUPT 0x01
1438
1439 irqreturn_t do_isp2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
1440 {
1441 struct Scsi_Host *host = dev_id;
1442 unsigned long flags;
1443
1444 spin_lock_irqsave(host->host_lock, flags);
1445 isp2x00_intr_handler(irq, dev_id, regs);
1446 spin_unlock_irqrestore(host->host_lock, flags);
1447
1448 return IRQ_HANDLED;
1449 }
1450
1451 void isp2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
1452 {
1453 Scsi_Cmnd *Cmnd;
1454 struct Status_Entry *sts;
1455 struct Scsi_Host *host = dev_id;
1456 struct isp2x00_hostdata *hostdata;
1457 u_int in_ptr, out_ptr, handle, num_free;
1458 u_short status;
1459
1460 ENTER_INTR("isp2x00_intr_handler");
1461
1462 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1463
1464 DEBUG_INTR(printk("qlogicfc%d : interrupt on line %d\n", hostdata->host_id, irq));
1465
1466 if (!(inw(host->io_port + PCI_INTER_STS) & 0x08)) {
1467 /* spurious interrupts can happen legally */
1468 DEBUG_INTR(printk("qlogicfc%d : got spurious interrupt\n", hostdata->host_id));
1469 return;
1470 }
1471 in_ptr = inw(host->io_port + MBOX5);
1472 out_ptr = hostdata->res_out_ptr;
1473
1474 if ((inw(host->io_port + PCI_SEMAPHORE) & ASYNC_EVENT_INTERRUPT)) {
1475 status = inw(host->io_port + MBOX0);
1476
1477 DEBUG_INTR(printk("qlogicfc%d : mbox completion status: %x\n",
1478 hostdata->host_id, status));
1479
1480 switch (status) {
1481 case LOOP_UP:
1482 case POINT_TO_POINT_UP:
1483 printk("qlogicfc%d : Link is Up\n", hostdata->host_id);
1484 hostdata->adapter_state = AS_REDO_FABRIC_PORTDB | AS_REDO_LOOP_PORTDB;
1485 break;
1486 case LOOP_DOWN:
1487 printk("qlogicfc%d : Link is Down\n", hostdata->host_id);
1488 hostdata->adapter_state = AS_LOOP_DOWN;
1489 break;
1490 case CONNECTION_MODE:
1491 printk("received CONNECTION_MODE irq %x\n", inw(host->io_port + MBOX1));
1492 break;
1493 case CHANGE_NOTIFICATION:
1494 printk("qlogicfc%d : RSCN Received\n", hostdata->host_id);
1495 if (hostdata->adapter_state == AS_LOOP_GOOD)
1496 hostdata->adapter_state = AS_REDO_FABRIC_PORTDB;
1497 break;
1498 case LIP_OCCURRED:
1499 case LIP_RECEIVED:
1500 printk("qlogicfc%d : Loop Reinitialized\n", hostdata->host_id);
1501 if (hostdata->adapter_state == AS_LOOP_GOOD)
1502 hostdata->adapter_state = AS_REDO_LOOP_PORTDB;
1503 break;
1504 case SYSTEM_ERROR:
1505 printk("qlogicfc%d : The firmware just choked.\n", hostdata->host_id);
1506 hostdata->adapter_state = AS_FIRMWARE_DEAD;
1507 break;
1508 case SCSI_COMMAND_COMPLETE:
1509 handle = inw(host->io_port + MBOX1) | (inw(host->io_port + MBOX2) << 16);
1510 Cmnd = hostdata->handle_ptrs[handle];
1511 hostdata->handle_ptrs[handle] = NULL;
1512 hostdata->handle_serials[handle] = 0;
1513 hostdata->queued--;
1514 if (Cmnd != NULL) {
1515 if (Cmnd->use_sg)
1516 pci_unmap_sg(hostdata->pci_dev,
1517 (struct scatterlist *)Cmnd->buffer,
1518 Cmnd->use_sg,
1519 Cmnd->sc_data_direction);
1520 else if (Cmnd->request_bufflen &&
1521 Cmnd->sc_data_direction != PCI_DMA_NONE)
1522 pci_unmap_page(hostdata->pci_dev,
1523 Cmnd->SCp.dma_handle,
1524 Cmnd->request_bufflen,
1525 Cmnd->sc_data_direction);
1526 Cmnd->result = 0x0;
1527 (*Cmnd->scsi_done) (Cmnd);
1528 } else
1529 printk("qlogicfc%d.c : got a null value out of handle_ptrs, this sucks\n", hostdata->host_id);
1530 break;
1531 case MBOX_COMMAND_COMPLETE:
1532 case INVALID_COMMAND:
1533 case HOST_INTERFACE_ERROR:
1534 case TEST_FAILED:
1535 case COMMAND_ERROR:
1536 case COMMAND_PARAM_ERROR:
1537 case PORT_ID_USED:
1538 case LOOP_ID_USED:
1539 case ALL_IDS_USED:
1540 hostdata->mbox_done = 1;
1541 outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
1542 return;
1543 default:
1544 printk("qlogicfc%d : got an unknown status? %x\n", hostdata->host_id, status);
1545 }
1546 if ((hostdata->adapter_state & AS_REDO_LOOP_PORTDB || hostdata->adapter_state & AS_REDO_FABRIC_PORTDB) && hostdata->explore_timer.data == 0){
1547 hostdata->explore_timer.function = redo_port_db;
1548 hostdata->explore_timer.data = (unsigned long)host;
1549 hostdata->explore_timer.expires = jiffies + (HZ/4);
1550 init_timer(&hostdata->explore_timer);
1551 add_timer(&hostdata->explore_timer);
1552 }
1553 outw(0x0, host->io_port + PCI_SEMAPHORE);
1554 } else {
1555 DEBUG_INTR(printk("qlogicfc%d : response queue update\n", hostdata->host_id));
1556 DEBUG_INTR(printk("qlogicfc%d : response queue depth %d\n", hostdata->host_id, RES_QUEUE_DEPTH(in_ptr, out_ptr)));
1557
1558 while (out_ptr != in_ptr) {
1559 unsigned le_hand;
1560 sts = (struct Status_Entry *) &hostdata->res[out_ptr*QUEUE_ENTRY_LEN];
1561 out_ptr = (out_ptr + 1) & RES_QUEUE_LEN;
1562
1563 TRACE("done", out_ptr, Cmnd);
1564 DEBUG_INTR(isp2x00_print_status_entry(sts));
1565 le_hand = le32_to_cpu(sts->handle);
1566 if (sts->hdr.entry_type == ENTRY_STATUS && (Cmnd = hostdata->handle_ptrs[le_hand])) {
1567 Cmnd->result = isp2x00_return_status(Cmnd, sts);
1568 hostdata->queued--;
1569
1570 if (Cmnd->use_sg)
1571 pci_unmap_sg(hostdata->pci_dev,
1572 (struct scatterlist *)Cmnd->buffer, Cmnd->use_sg,
1573 Cmnd->sc_data_direction);
1574 else if (Cmnd->request_bufflen && Cmnd->sc_data_direction != PCI_DMA_NONE)
1575 pci_unmap_page(hostdata->pci_dev,
1576 Cmnd->SCp.dma_handle,
1577 Cmnd->request_bufflen,
1578 Cmnd->sc_data_direction);
1579
1580 /*
1581 * if any of the following are true we do not
1582 * call scsi_done. if the status is CS_ABORTED
1583 * we don't have to call done because the upper
1584 * level should already know its aborted.
1585 */
1586 if (hostdata->handle_serials[le_hand] != Cmnd->serial_number
1587 || le16_to_cpu(sts->completion_status) == CS_ABORTED){
1588 hostdata->handle_serials[le_hand] = 0;
1589 hostdata->handle_ptrs[le_hand] = NULL;
1590 outw(out_ptr, host->io_port + MBOX5);
1591 continue;
1592 }
1593 /*
1594 * if we get back an error indicating the port
1595 * is not there or if the link is down and
1596 * this is a device that used to be there
1597 * allow the command to timeout.
1598 * the device may well be back in a couple of
1599 * seconds.
1600 */
1601 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){
1602 outw(out_ptr, host->io_port + MBOX5);
1603 continue;
1604 }
1605 } else {
1606 outw(out_ptr, host->io_port + MBOX5);
1607 continue;
1608 }
1609
1610 hostdata->handle_ptrs[le_hand] = NULL;
1611
1612 if (sts->completion_status == cpu_to_le16(CS_RESET_OCCURRED)
1613 || (sts->status_flags & cpu_to_le16(STF_BUS_RESET)))
1614 hostdata->send_marker = 1;
1615
1616 if (le16_to_cpu(sts->scsi_status) & 0x0200)
1617 memcpy(Cmnd->sense_buffer, sts->req_sense_data,
1618 sizeof(Cmnd->sense_buffer));
1619
1620 outw(out_ptr, host->io_port + MBOX5);
1621
1622 if (Cmnd->scsi_done != NULL) {
1623 (*Cmnd->scsi_done) (Cmnd);
1624 } else
1625 printk("qlogicfc%d : Ouch, scsi done is NULL\n", hostdata->host_id);
1626 }
1627 hostdata->res_out_ptr = out_ptr;
1628 }
1629
1630
1631 out_ptr = inw(host->io_port + MBOX4);
1632 in_ptr = hostdata->req_in_ptr;
1633
1634 num_free = QLOGICFC_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr);
1635 num_free = (num_free > 2) ? num_free - 2 : 0;
1636 host->can_queue = host->host_busy + num_free;
1637 if (host->can_queue > QLOGICFC_REQ_QUEUE_LEN)
1638 host->can_queue = QLOGICFC_REQ_QUEUE_LEN;
1639 host->sg_tablesize = QLOGICFC_MAX_SG(num_free);
1640
1641 outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
1642 LEAVE_INTR("isp2x00_intr_handler");
1643 }
1644
1645
1646 static int isp2x00_return_status(Scsi_Cmnd *Cmnd, struct Status_Entry *sts)
1647 {
1648 int host_status = DID_ERROR;
1649 #if DEBUG_ISP2x00_INTR
1650 static char *reason[] =
1651 {
1652 "DID_OK",
1653 "DID_NO_CONNECT",
1654 "DID_BUS_BUSY",
1655 "DID_TIME_OUT",
1656 "DID_BAD_TARGET",
1657 "DID_ABORT",
1658 "DID_PARITY",
1659 "DID_ERROR",
1660 "DID_RESET",
1661 "DID_BAD_INTR"
1662 };
1663 #endif /* DEBUG_ISP2x00_INTR */
1664
1665 ENTER("isp2x00_return_status");
1666
1667 DEBUG(printk("qlogicfc : completion status = 0x%04x\n",
1668 le16_to_cpu(sts->completion_status)));
1669
1670 switch (le16_to_cpu(sts->completion_status)) {
1671 case CS_COMPLETE:
1672 host_status = DID_OK;
1673 break;
1674 case CS_DMA_ERROR:
1675 host_status = DID_ERROR;
1676 break;
1677 case CS_RESET_OCCURRED:
1678 host_status = DID_RESET;
1679 break;
1680 case CS_ABORTED:
1681 host_status = DID_ABORT;
1682 break;
1683 case CS_TIMEOUT:
1684 host_status = DID_TIME_OUT;
1685 break;
1686 case CS_DATA_OVERRUN:
1687 host_status = DID_ERROR;
1688 break;
1689 case CS_DATA_UNDERRUN:
1690 if (Cmnd->underflow <= (Cmnd->request_bufflen - le32_to_cpu(sts->residual)))
1691 host_status = DID_OK;
1692 else
1693 host_status = DID_ERROR;
1694 break;
1695 case CS_PORT_UNAVAILABLE:
1696 case CS_PORT_LOGGED_OUT:
1697 case CS_PORT_CONFIG_CHANGED:
1698 host_status = DID_BAD_TARGET;
1699 break;
1700 case CS_QUEUE_FULL:
1701 host_status = DID_ERROR;
1702 break;
1703 default:
1704 printk("qlogicfc : unknown completion status 0x%04x\n",
1705 le16_to_cpu(sts->completion_status));
1706 host_status = DID_ERROR;
1707 break;
1708 }
1709
1710 DEBUG_INTR(printk("qlogicfc : host status (%s) scsi status %x\n",
1711 reason[host_status], le16_to_cpu(sts->scsi_status)));
1712
1713 LEAVE("isp2x00_return_status");
1714
1715 return (le16_to_cpu(sts->scsi_status) & STATUS_MASK) | (host_status << 16);
1716 }
1717
1718
1719 static int isp2x00_abort(Scsi_Cmnd * Cmnd)
1720 {
1721 u_short param[8];
1722 int i;
1723 struct Scsi_Host *host;
1724 struct isp2x00_hostdata *hostdata;
1725 int return_status = SUCCESS;
1726
1727 ENTER("isp2x00_abort");
1728
1729 host = Cmnd->device->host;
1730 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1731
1732 for (i = 0; i < QLOGICFC_REQ_QUEUE_LEN; i++)
1733 if (hostdata->handle_ptrs[i] == Cmnd)
1734 break;
1735
1736 if (i == QLOGICFC_REQ_QUEUE_LEN){
1737 return SUCCESS;
1738 }
1739
1740 isp2x00_disable_irqs(host);
1741
1742 param[0] = MBOX_ABORT_IOCB;
1743 #if ISP2x00_PORTDB
1744 param[1] = (((u_short) hostdata->port_db[Cmnd->device->id].loop_id) << 8) | Cmnd->device->lun;
1745 #else
1746 param[1] = (((u_short) Cmnd->target) << 8) | Cmnd->lun;
1747 #endif
1748 param[2] = i & 0xffff;
1749 param[3] = i >> 16;
1750
1751 isp2x00_mbox_command(host, param);
1752
1753 if (param[0] != MBOX_COMMAND_COMPLETE) {
1754 printk("qlogicfc%d : scsi abort failure: %x\n", hostdata->host_id, param[0]);
1755 if (param[0] == 0x4005)
1756 Cmnd->result = DID_ERROR << 16;
1757 if (param[0] == 0x4006)
1758 Cmnd->result = DID_BAD_TARGET << 16;
1759 return_status = FAILED;
1760 }
1761
1762 if (return_status != SUCCESS){
1763 param[0] = MBOX_GET_FIRMWARE_STATE;
1764 isp2x00_mbox_command(host, param);
1765 printk("qlogicfc%d : abort failed\n", hostdata->host_id);
1766 printk("qlogicfc%d : firmware status is %x %x\n", hostdata->host_id, param[0], param[1]);
1767 }
1768
1769 isp2x00_enable_irqs(host);
1770
1771 LEAVE("isp2x00_abort");
1772
1773 return return_status;
1774 }
1775
1776
1777 static int isp2x00_biosparam(struct scsi_device *sdev, struct block_device *n,
1778 sector_t capacity, int ip[])
1779 {
1780 int size = capacity;
1781
1782 ENTER("isp2x00_biosparam");
1783
1784 ip[0] = 64;
1785 ip[1] = 32;
1786 ip[2] = size >> 11;
1787 if (ip[2] > 1024) {
1788 ip[0] = 255;
1789 ip[1] = 63;
1790 ip[2] = size / (ip[0] * ip[1]);
1791 }
1792 LEAVE("isp2x00_biosparam");
1793
1794 return 0;
1795 }
1796
1797 static int isp2x00_reset_hardware(struct Scsi_Host *host)
1798 {
1799 u_short param[8];
1800 struct isp2x00_hostdata *hostdata;
1801 int loop_count;
1802 dma_addr_t busaddr;
1803
1804 ENTER("isp2x00_reset_hardware");
1805
1806 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1807
1808 /*
1809 * This cannot be right - PCI writes are posted
1810 * (apparently this is hardware design flaw not software ?)
1811 */
1812
1813 outw(0x01, host->io_port + ISP_CTRL_STATUS);
1814 udelay(100);
1815 outw(HCCR_RESET, host->io_port + HOST_HCCR);
1816 udelay(100);
1817 outw(HCCR_RELEASE, host->io_port + HOST_HCCR);
1818 outw(HCCR_BIOS_DISABLE, host->io_port + HOST_HCCR);
1819
1820 loop_count = DEFAULT_LOOP_COUNT;
1821 while (--loop_count && inw(host->io_port + HOST_HCCR) == RISC_BUSY) {
1822 barrier();
1823 cpu_relax();
1824 }
1825 if (!loop_count)
1826 printk("qlogicfc%d : reset_hardware loop timeout\n", hostdata->host_id);
1827
1828
1829
1830 #if DEBUG_ISP2x00
1831 printk("qlogicfc%d : mbox 0 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX0));
1832 printk("qlogicfc%d : mbox 1 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX1));
1833 printk("qlogicfc%d : mbox 2 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX2));
1834 printk("qlogicfc%d : mbox 3 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX3));
1835 printk("qlogicfc%d : mbox 4 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX4));
1836 printk("qlogicfc%d : mbox 5 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX5));
1837 printk("qlogicfc%d : mbox 6 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX6));
1838 printk("qlogicfc%d : mbox 7 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX7));
1839 #endif /* DEBUG_ISP2x00 */
1840
1841 DEBUG(printk("qlogicfc%d : verifying checksum\n", hostdata->host_id));
1842
1843 #if defined(CONFIG_SCSI_QLOGIC_FC_FIRMWARE)
1844 {
1845 int i;
1846 unsigned short * risc_code = NULL;
1847 unsigned short risc_code_len = 0;
1848 if (hostdata->pci_dev->device == PCI_DEVICE_ID_QLOGIC_ISP2100){
1849 risc_code = risc_code2100;
1850 risc_code_len = risc_code_length2100;
1851 }
1852 else if (hostdata->pci_dev->device == PCI_DEVICE_ID_QLOGIC_ISP2200){
1853 risc_code = risc_code2200;
1854 risc_code_len = risc_code_length2200;
1855 }
1856
1857 for (i = 0; i < risc_code_len; i++) {
1858 param[0] = MBOX_WRITE_RAM_WORD;
1859 param[1] = risc_code_addr01 + i;
1860 param[2] = risc_code[i];
1861
1862 isp2x00_mbox_command(host, param);
1863
1864 if (param[0] != MBOX_COMMAND_COMPLETE) {
1865 printk("qlogicfc%d : firmware load failure\n", hostdata->host_id);
1866 return 1;
1867 }
1868 }
1869 }
1870 #endif /* RELOAD_FIRMWARE */
1871
1872 param[0] = MBOX_VERIFY_CHECKSUM;
1873 param[1] = risc_code_addr01;
1874
1875 isp2x00_mbox_command(host, param);
1876
1877 if (param[0] != MBOX_COMMAND_COMPLETE) {
1878 printk("qlogicfc%d : ram checksum failure\n", hostdata->host_id);
1879 return 1;
1880 }
1881 DEBUG(printk("qlogicfc%d : executing firmware\n", hostdata->host_id));
1882
1883 param[0] = MBOX_EXEC_FIRMWARE;
1884 param[1] = risc_code_addr01;
1885
1886 isp2x00_mbox_command(host, param);
1887
1888 param[0] = MBOX_ABOUT_FIRMWARE;
1889
1890 isp2x00_mbox_command(host, param);
1891
1892 if (param[0] != MBOX_COMMAND_COMPLETE) {
1893 printk("qlogicfc%d : about firmware failure\n", hostdata->host_id);
1894 return 1;
1895 }
1896 DEBUG(printk("qlogicfc%d : firmware major revision %d\n", hostdata->host_id, param[1]));
1897 DEBUG(printk("qlogicfc%d : firmware minor revision %d\n", hostdata->host_id, param[2]));
1898
1899 #ifdef USE_NVRAM_DEFAULTS
1900
1901 if (isp2x00_get_nvram_defaults(host, &hostdata->control_block) != 0) {
1902 printk("qlogicfc%d : Could not read from NVRAM\n", hostdata->host_id);
1903 }
1904 #endif
1905
1906 hostdata->wwn = (u64) (cpu_to_le16(hostdata->control_block.node_name[0])) << 56;
1907 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[0]) & 0xff00) << 48;
1908 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[1]) & 0xff00) << 24;
1909 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[1]) & 0x00ff) << 48;
1910 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[2]) & 0x00ff) << 24;
1911 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[2]) & 0xff00) << 8;
1912 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[3]) & 0x00ff) << 8;
1913 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[3]) & 0xff00) >> 8;
1914
1915 /* FIXME: If the DMA transfer goes one way only, this should use
1916 * PCI_DMA_TODEVICE and below as well.
1917 */
1918 busaddr = pci_map_page(hostdata->pci_dev,
1919 virt_to_page(&hostdata->control_block),
1920 offset_in_page(&hostdata->control_block),
1921 sizeof(hostdata->control_block),
1922 PCI_DMA_BIDIRECTIONAL);
1923
1924 param[0] = MBOX_INIT_FIRMWARE;
1925 param[2] = (u_short) (pci64_dma_lo32(busaddr) >> 16);
1926 param[3] = (u_short) (pci64_dma_lo32(busaddr) & 0xffff);
1927 param[4] = 0;
1928 param[5] = 0;
1929 param[6] = (u_short) (pci64_dma_hi32(busaddr) >> 16);
1930 param[7] = (u_short) (pci64_dma_hi32(busaddr) & 0xffff);
1931 isp2x00_mbox_command(host, param);
1932 if (param[0] != MBOX_COMMAND_COMPLETE) {
1933 printk("qlogicfc%d.c: Ouch 0x%04x\n", hostdata->host_id, param[0]);
1934 pci_unmap_page(hostdata->pci_dev, busaddr,
1935 sizeof(hostdata->control_block),
1936 PCI_DMA_BIDIRECTIONAL);
1937 return 1;
1938 }
1939 param[0] = MBOX_GET_FIRMWARE_STATE;
1940 isp2x00_mbox_command(host, param);
1941 if (param[0] != MBOX_COMMAND_COMPLETE) {
1942 printk("qlogicfc%d.c: 0x%04x\n", hostdata->host_id, param[0]);
1943 pci_unmap_page(hostdata->pci_dev, busaddr,
1944 sizeof(hostdata->control_block),
1945 PCI_DMA_BIDIRECTIONAL);
1946 return 1;
1947 }
1948
1949 pci_unmap_page(hostdata->pci_dev, busaddr,
1950 sizeof(hostdata->control_block),
1951 PCI_DMA_BIDIRECTIONAL);
1952 LEAVE("isp2x00_reset_hardware");
1953
1954 return 0;
1955 }
1956
1957 #ifdef USE_NVRAM_DEFAULTS
1958
1959 static int isp2x00_get_nvram_defaults(struct Scsi_Host *host, struct init_cb *control_block)
1960 {
1961
1962 u_short value;
1963 if (isp2x00_read_nvram_word(host, 0) != 0x5349)
1964 return 1;
1965
1966 value = isp2x00_read_nvram_word(host, 8);
1967 control_block->node_name[0] = cpu_to_le16(isp2x00_read_nvram_word(host, 9));
1968 control_block->node_name[1] = cpu_to_le16(isp2x00_read_nvram_word(host, 10));
1969 control_block->node_name[2] = cpu_to_le16(isp2x00_read_nvram_word(host, 11));
1970 control_block->node_name[3] = cpu_to_le16(isp2x00_read_nvram_word(host, 12));
1971 control_block->hard_addr = cpu_to_le16(isp2x00_read_nvram_word(host, 13));
1972
1973 return 0;
1974
1975 }
1976
1977 #endif
1978
1979 static int isp2x00_init(struct Scsi_Host *sh)
1980 {
1981 u_long io_base;
1982 struct isp2x00_hostdata *hostdata;
1983 u_char revision;
1984 u_int irq;
1985 u_short command;
1986 struct pci_dev *pdev;
1987
1988
1989 ENTER("isp2x00_init");
1990
1991 hostdata = (struct isp2x00_hostdata *) sh->hostdata;
1992 pdev = hostdata->pci_dev;
1993
1994 if (pci_read_config_word(pdev, PCI_COMMAND, &command)
1995 || pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision)) {
1996 printk("qlogicfc%d : error reading PCI configuration\n", hostdata->host_id);
1997 return 1;
1998 }
1999 io_base = pci_resource_start(pdev, 0);
2000 irq = pdev->irq;
2001
2002
2003 if (pdev->vendor != PCI_VENDOR_ID_QLOGIC) {
2004 printk("qlogicfc%d : 0x%04x is not QLogic vendor ID\n", hostdata->host_id,
2005 pdev->vendor);
2006 return 1;
2007 }
2008 if (pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2100 && pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2200) {
2009 printk("qlogicfc%d : 0x%04x does not match ISP2100 or ISP2200 device id\n", hostdata->host_id,
2010 pdev->device);
2011 return 1;
2012 }
2013 if (!(command & PCI_COMMAND_IO) ||
2014 !(pdev->resource[0].flags & IORESOURCE_IO)) {
2015 printk("qlogicfc%d : i/o mapping is disabled\n", hostdata->host_id);
2016 return 1;
2017 }
2018
2019 pci_set_master(pdev);
2020 if (revision != ISP2100_REV_ID1 && revision != ISP2100_REV_ID3 && revision != ISP2200_REV_ID5)
2021 printk("qlogicfc%d : new isp2x00 revision ID (%d)\n", hostdata->host_id, revision);
2022
2023
2024 hostdata->revision = revision;
2025
2026 sh->irq = irq;
2027 sh->io_port = io_base;
2028
2029 LEAVE("isp2x00_init");
2030
2031 return 0;
2032 }
2033
2034 #if USE_NVRAM_DEFAULTS
2035
2036 #define NVRAM_DELAY() udelay(10) /* 10 microsecond delay */
2037
2038
2039 u_short isp2x00_read_nvram_word(struct Scsi_Host * host, u_short byte)
2040 {
2041 int i;
2042 u_short value, output, input;
2043
2044 outw(0x2, host->io_port + PCI_NVRAM);
2045 NVRAM_DELAY();
2046 outw(0x3, host->io_port + PCI_NVRAM);
2047 NVRAM_DELAY();
2048
2049 byte &= 0xff;
2050 byte |= 0x0600;
2051 for (i = 10; i >= 0; i--) {
2052 output = ((byte >> i) & 0x1) ? 0x4 : 0x0;
2053 outw(output | 0x2, host->io_port + PCI_NVRAM);
2054 NVRAM_DELAY();
2055 outw(output | 0x3, host->io_port + PCI_NVRAM);
2056 NVRAM_DELAY();
2057 outw(output | 0x2, host->io_port + PCI_NVRAM);
2058 NVRAM_DELAY();
2059 }
2060
2061 for (i = 0xf, value = 0; i >= 0; i--) {
2062 value <<= 1;
2063 outw(0x3, host->io_port + PCI_NVRAM);
2064 NVRAM_DELAY();
2065 input = inw(host->io_port + PCI_NVRAM);
2066 NVRAM_DELAY();
2067 outw(0x2, host->io_port + PCI_NVRAM);
2068 NVRAM_DELAY();
2069 if (input & 0x8)
2070 value |= 1;
2071 }
2072
2073 outw(0x0, host->io_port + PCI_NVRAM);
2074 NVRAM_DELAY();
2075
2076 return value;
2077 }
2078
2079
2080 #endif /* USE_NVRAM_DEFAULTS */
2081
2082
2083
2084 /*
2085 * currently, this is only called during initialization or abort/reset,
2086 * at which times interrupts are disabled, so polling is OK, I guess...
2087 */
2088 static int isp2x00_mbox_command(struct Scsi_Host *host, u_short param[])
2089 {
2090 int loop_count;
2091 struct isp2x00_hostdata *hostdata = (struct isp2x00_hostdata *) host->hostdata;
2092
2093 if (mbox_param[param[0]] == 0 || hostdata->adapter_state == AS_FIRMWARE_DEAD)
2094 return 1;
2095
2096 loop_count = DEFAULT_LOOP_COUNT;
2097 while (--loop_count && inw(host->io_port + HOST_HCCR) & 0x0080) {
2098 barrier();
2099 cpu_relax();
2100 }
2101 if (!loop_count) {
2102 printk("qlogicfc%d : mbox_command loop timeout #1\n", hostdata->host_id);
2103 param[0] = 0x4006;
2104 hostdata->adapter_state = AS_FIRMWARE_DEAD;
2105 return 1;
2106 }
2107 hostdata->mbox_done = 0;
2108
2109 if (mbox_param[param[0]] == 0)
2110 printk("qlogicfc%d : invalid mbox command\n", hostdata->host_id);
2111
2112 if (mbox_param[param[0]] & 0x80)
2113 outw(param[7], host->io_port + MBOX7);
2114 if (mbox_param[param[0]] & 0x40)
2115 outw(param[6], host->io_port + MBOX6);
2116 if (mbox_param[param[0]] & 0x20)
2117 outw(param[5], host->io_port + MBOX5);
2118 if (mbox_param[param[0]] & 0x10)
2119 outw(param[4], host->io_port + MBOX4);
2120 if (mbox_param[param[0]] & 0x08)
2121 outw(param[3], host->io_port + MBOX3);
2122 if (mbox_param[param[0]] & 0x04)
2123 outw(param[2], host->io_port + MBOX2);
2124 if (mbox_param[param[0]] & 0x02)
2125 outw(param[1], host->io_port + MBOX1);
2126 if (mbox_param[param[0]] & 0x01)
2127 outw(param[0], host->io_port + MBOX0);
2128
2129
2130 outw(HCCR_SET_HOST_INTR, host->io_port + HOST_HCCR);
2131
2132 while (1) {
2133 loop_count = DEFAULT_LOOP_COUNT;
2134 while (--loop_count && !(inw(host->io_port + PCI_INTER_STS) & 0x08)) {
2135 barrier();
2136 cpu_relax();
2137 }
2138
2139 if (!loop_count) {
2140 hostdata->adapter_state = AS_FIRMWARE_DEAD;
2141 printk("qlogicfc%d : mbox_command loop timeout #2\n", hostdata->host_id);
2142 break;
2143 }
2144 isp2x00_intr_handler(host->irq, host, NULL);
2145
2146 if (hostdata->mbox_done == 1)
2147 break;
2148
2149 }
2150
2151 loop_count = DEFAULT_LOOP_COUNT;
2152 while (--loop_count && inw(host->io_port + MBOX0) == 0x04) {
2153 barrier();
2154 cpu_relax();
2155 }
2156 if (!loop_count)
2157 printk("qlogicfc%d : mbox_command loop timeout #3\n", hostdata->host_id);
2158
2159 param[7] = inw(host->io_port + MBOX7);
2160 param[6] = inw(host->io_port + MBOX6);
2161 param[5] = inw(host->io_port + MBOX5);
2162 param[4] = inw(host->io_port + MBOX4);
2163 param[3] = inw(host->io_port + MBOX3);
2164 param[2] = inw(host->io_port + MBOX2);
2165 param[1] = inw(host->io_port + MBOX1);
2166 param[0] = inw(host->io_port + MBOX0);
2167
2168
2169 outw(0x0, host->io_port + PCI_SEMAPHORE);
2170
2171 if (inw(host->io_port + HOST_HCCR) & 0x0080) {
2172 hostdata->adapter_state = AS_FIRMWARE_DEAD;
2173 printk("qlogicfc%d : mbox op is still pending\n", hostdata->host_id);
2174 }
2175 return 0;
2176 }
2177
2178 #if DEBUG_ISP2x00_INTR
2179
2180 void isp2x00_print_status_entry(struct Status_Entry *status)
2181 {
2182 printk("qlogicfc : entry count = 0x%02x, type = 0x%02x, flags = 0x%02x\n",
2183 status->hdr.entry_cnt, status->hdr.entry_type, status->hdr.flags);
2184 printk("qlogicfc : scsi status = 0x%04x, completion status = 0x%04x\n",
2185 le16_to_cpu(status->scsi_status), le16_to_cpu(status->completion_status));
2186 printk("qlogicfc : state flags = 0x%04x, status flags = 0x%04x\n",
2187 le16_to_cpu(status->state_flags), le16_to_cpu(status->status_flags));
2188 printk("qlogicfc : response info length = 0x%04x, request sense length = 0x%04x\n",
2189 le16_to_cpu(status->res_info_len), le16_to_cpu(status->req_sense_len));
2190 printk("qlogicfc : residual transfer length = 0x%08x, response = 0x%02x\n", le32_to_cpu(status->residual), status->res_info[3]);
2191
2192 }
2193
2194 #endif /* DEBUG_ISP2x00_INTR */
2195
2196
2197 #if DEBUG_ISP2x00
2198
2199 void isp2x00_print_scsi_cmd(Scsi_Cmnd * cmd)
2200 {
2201 int i;
2202
2203 printk("qlogicfc : target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
2204 cmd->target, cmd->lun, cmd->cmd_len);
2205 printk("qlogicfc : command = ");
2206 for (i = 0; i < cmd->cmd_len; i++)
2207 printk("0x%02x ", cmd->cmnd[i]);
2208 printk("\n");
2209 }
2210
2211 #endif /* DEBUG_ISP2x00 */
2212
2213 MODULE_LICENSE("GPL");
2214
2215 static struct scsi_host_template driver_template = {
2216 .detect = isp2x00_detect,
2217 .release = isp2x00_release,
2218 .info = isp2x00_info,
2219 .queuecommand = isp2x00_queuecommand,
2220 .eh_abort_handler = isp2x00_abort,
2221 .bios_param = isp2x00_biosparam,
2222 .can_queue = QLOGICFC_REQ_QUEUE_LEN,
2223 .this_id = -1,
2224 .sg_tablesize = QLOGICFC_MAX_SG(QLOGICFC_REQ_QUEUE_LEN),
2225 .cmd_per_lun = QLOGICFC_CMD_PER_LUN,
2226 .use_clustering = ENABLE_CLUSTERING,
2227 };
2228 #include "scsi_module.c"
Support for the Chinese Samsung S3C2440 based development boards