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[linux.git] / drivers / scsi / qlogicfc.c
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1da177e4
LT		 1/*
2 * QLogic ISP2x00 SCSI-FCP
3 * Written by Erik H. Moe, [email protected]
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 <[email protected]> */
18
19/* This is a version of the isp1020 driver which was modified by
20 * Chris Loveland <[email protected]> to support the isp2100 and isp2200
21 *
22 * Big endian support and dynamic DMA mapping added
23 * by Jakub Jelinek <[email protected]>.
24 *
25 * Conversion to final pci64 DMA interfaces
26 * by David S. Miller <[email protected]>.
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
130struct {
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
239struct 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
259struct dataseg {
260 u_int d_base;
261 u_int d_base_hi;
262 u_int d_count;
263};
264
265struct 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
289struct Continuation_Entry {
290 struct Entry_header hdr;
291 struct dataseg dataseg[DATASEGS_PER_CONT];
292};
293
294struct 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
309struct 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
426static 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
433static 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
554struct id_name_map {
555 u64 wwn;
556 u_char loop_id;
557};
558
559struct 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 */
571struct 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
641struct 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
675static void isp2x00_enable_irqs(struct Scsi_Host *);
676static void isp2x00_disable_irqs(struct Scsi_Host *);
677static int isp2x00_init(struct Scsi_Host *);
678static int isp2x00_reset_hardware(struct Scsi_Host *);
679static int isp2x00_mbox_command(struct Scsi_Host *, u_short[]);
680static int isp2x00_return_status(Scsi_Cmnd *, struct Status_Entry *);
681static void isp2x00_intr_handler(int, void *, struct pt_regs *);
682static irqreturn_t do_isp2x00_intr_handler(int, void *, struct pt_regs *);
683static int isp2x00_make_portdb(struct Scsi_Host *);
684
685#if ISP2x00_FABRIC
686static int isp2x00_init_fabric(struct Scsi_Host *, struct id_name_map *, int);
687#endif
688
689#if USE_NVRAM_DEFAULTS
690static int isp2x00_get_nvram_defaults(struct Scsi_Host *, struct init_cb *);
691static u_short isp2x00_read_nvram_word(struct Scsi_Host *, u_short);
692#endif
693
694#if DEBUG_ISP2x00
695static void isp2x00_print_scsi_cmd(Scsi_Cmnd *);
696#endif
697
698#if DEBUG_ISP2x00_INTR
699static void isp2x00_print_status_entry(struct Status_Entry *);
700#endif
701
702static 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
708static inline void isp2x00_disable_irqs(struct Scsi_Host *host)
709{
710 outw(0x0, host->io_port + PCI_INTER_CTL);
711}
712
713
d0be4a7d 714static int isp2x00_detect(struct scsi_host_template * tmpt)
1da177e4
LT		 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 }
1da177e4
LT		 749 host->max_id = QLOGICFC_MAX_ID + 1;
750 host->max_lun = QLOGICFC_MAX_LUN;
751 hostdata = (struct isp2x00_hostdata *) host->hostdata;
752
753 memset(hostdata, 0, sizeof(struct isp2x00_hostdata));
754 hostdata->pci_dev = pdev;
755 hostdata->res = pci_alloc_consistent(pdev, RES_SIZE + REQ_SIZE, &busaddr);
756
757 if (!hostdata->res){
758 printk("qlogicfc%d : could not allocate memory for request and response queue.\n", hosts);
759 scsi_unregister(host);
760 continue;
761 }
762 hostdata->req = hostdata->res + (RES_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN;
763 hostdata->queued = 0;
764 /* set up the control block */
765 hostdata->control_block.version = 0x1;
766 hostdata->control_block.firm_opts = cpu_to_le16(0x800e);
767 hostdata->control_block.max_frame_len = cpu_to_le16(2048);
768 hostdata->control_block.max_iocb = cpu_to_le16(QLOGICFC_REQ_QUEUE_LEN);
769 hostdata->control_block.exec_throttle = cpu_to_le16(QLOGICFC_CMD_PER_LUN);
770 hostdata->control_block.retry_delay = 5;
771 hostdata->control_block.retry_cnt = 1;
772 hostdata->control_block.node_name[0] = cpu_to_le16(0x0020);
773 hostdata->control_block.node_name[1] = cpu_to_le16(0xE000);
774 hostdata->control_block.node_name[2] = cpu_to_le16(0x008B);
775 hostdata->control_block.node_name[3] = cpu_to_le16(0x0000);
776 hostdata->control_block.hard_addr = cpu_to_le16(0x0003);
777 hostdata->control_block.req_queue_len = cpu_to_le16(QLOGICFC_REQ_QUEUE_LEN + 1);
778 hostdata->control_block.res_queue_len = cpu_to_le16(RES_QUEUE_LEN + 1);
779 hostdata->control_block.res_queue_addr_lo = cpu_to_le32(pci64_dma_lo32(busaddr));
780 hostdata->control_block.res_queue_addr_high = cpu_to_le32(pci64_dma_hi32(busaddr));
781 hostdata->control_block.req_queue_addr_lo = cpu_to_le32(pci64_dma_lo32(busaddr + RES_SIZE));
782 hostdata->control_block.req_queue_addr_high = cpu_to_le32(pci64_dma_hi32(busaddr + RES_SIZE));
783
784
785 hostdata->control_block.add_firm_opts |= cpu_to_le16(CONNECTION_PREFERENCE<<4);
786 hostdata->adapter_state = AS_LOOP_DOWN;
787 hostdata->explore_timer.data = 1;
788 hostdata->host_id = hosts;
789
790 if (isp2x00_init(host) || isp2x00_reset_hardware(host)) {
791 pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
792 scsi_unregister(host);
793 continue;
794 }
795 host->this_id = 0;
796
797 if (request_irq(host->irq, do_isp2x00_intr_handler, SA_INTERRUPT | SA_SHIRQ, "qlogicfc", host)) {
798 printk("qlogicfc%d : interrupt %d already in use\n",
799 hostdata->host_id, host->irq);
800 pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
801 scsi_unregister(host);
802 continue;
803 }
804 if (!request_region(host->io_port, 0xff, "qlogicfc")) {
805 printk("qlogicfc%d : i/o region 0x%lx-0x%lx already "
806 "in use\n",
807 hostdata->host_id, host->io_port, host->io_port + 0xff);
808 free_irq(host->irq, host);
809 pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
810 scsi_unregister(host);
811 continue;
812 }
813
814 outw(0x0, host->io_port + PCI_SEMAPHORE);
815 outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
816 isp2x00_enable_irqs(host);
817 /* wait for the loop to come up */
818 for (wait_time = jiffies + 10 * HZ; time_before(jiffies, wait_time) && hostdata->adapter_state == AS_LOOP_DOWN;) {
819 barrier();
820 cpu_relax();
821 }
822 if (hostdata->adapter_state == AS_LOOP_DOWN) {
823 printk("qlogicfc%d : link is not up\n", hostdata->host_id);
824 }
825 hosts++;
826 hostdata->explore_timer.data = 0;
827 }
828 }
829
830
831 /* this busy loop should not be needed but the isp2x00 seems to need
832 some time before recognizing it is attached to a fabric */
833
834#if ISP2x00_FABRIC
835 if (hosts) {
836 for (wait_time = jiffies + 5 * HZ; time_before(jiffies, wait_time);) {
837 barrier();
838 cpu_relax();
839 }
840 }
841#endif
842
843 LEAVE("isp2x00_detect");
844
845 return hosts;
846}
847
848
849static int isp2x00_make_portdb(struct Scsi_Host *host)
850{
851
852 short param[8];
853 int i, j;
854 struct isp2x00_hostdata *hostdata;
855
856 isp2x00_disable_irqs(host);
857
858 hostdata = (struct isp2x00_hostdata *) host->hostdata;
859 memset(hostdata->tempmap, 0, sizeof(hostdata->tempmap));
860
861#if ISP2x00_FABRIC
862 for (i = 0x81; i < QLOGICFC_MAX_ID; i++) {
863 param[0] = MBOX_PORT_LOGOUT;
864 param[1] = i << 8;
865 param[2] = 0;
866 param[3] = 0;
867
868 isp2x00_mbox_command(host, param);
869
870 if (param[0] != MBOX_COMMAND_COMPLETE) {
871
872 DEBUG_FABRIC(printk("qlogicfc%d : logout failed %x %x\n", hostdata->host_id, i, param[0]));
873 }
874 }
875#endif
876
877
878 param[0] = MBOX_GET_INIT_SCSI_ID;
879
880 isp2x00_mbox_command(host, param);
881
882 if (param[0] == MBOX_COMMAND_COMPLETE) {
883 hostdata->port_id = ((u_int) param[3]) << 16;
884 hostdata->port_id |= param[2];
885 hostdata->tempmap[0].loop_id = param[1];
886 hostdata->tempmap[0].wwn = hostdata->wwn;
887 }
888 else {
889 printk("qlogicfc%d : error getting scsi id.\n", hostdata->host_id);
890 }
891
892 for (i = 0; i <=QLOGICFC_MAX_ID; i++)
893 hostdata->tempmap[i].loop_id = hostdata->tempmap[0].loop_id;
894
895 for (i = 0, j = 1; i <= QLOGICFC_MAX_LOOP_ID; i++) {
896 param[0] = MBOX_GET_PORT_NAME;
897 param[1] = (i << 8) & 0xff00;
898
899 isp2x00_mbox_command(host, param);
900
901 if (param[0] == MBOX_COMMAND_COMPLETE) {
902 hostdata->tempmap[j].loop_id = i;
903 hostdata->tempmap[j].wwn = ((u64) (param[2] & 0xff)) << 56;
904 hostdata->tempmap[j].wwn |= ((u64) ((param[2] >> 8) & 0xff)) << 48;
905 hostdata->tempmap[j].wwn |= ((u64) (param[3] & 0xff)) << 40;
906 hostdata->tempmap[j].wwn |= ((u64) ((param[3] >> 8) & 0xff)) << 32;
907 hostdata->tempmap[j].wwn |= ((u64) (param[6] & 0xff)) << 24;
908 hostdata->tempmap[j].wwn |= ((u64) ((param[6] >> 8) & 0xff)) << 16;
909 hostdata->tempmap[j].wwn |= ((u64) (param[7] & 0xff)) << 8;
910 hostdata->tempmap[j].wwn |= ((u64) ((param[7] >> 8) & 0xff));
911
912 j++;
913
914 }
915 }
916
917
918#if ISP2x00_FABRIC
919 isp2x00_init_fabric(host, hostdata->tempmap, j);
920#endif
921
922 for (i = 0; i <= QLOGICFC_MAX_ID; i++) {
923 if (hostdata->tempmap[i].wwn != hostdata->port_db[i].wwn) {
924 for (j = 0; j <= QLOGICFC_MAX_ID; j++) {
925 if (hostdata->tempmap[j].wwn == hostdata->port_db[i].wwn) {
926 hostdata->port_db[i].loop_id = hostdata->tempmap[j].loop_id;
927 break;
928 }
929 }
930 if (j == QLOGICFC_MAX_ID + 1)
931 hostdata->port_db[i].loop_id = hostdata->tempmap[0].loop_id;
932
933 for (j = 0; j <= QLOGICFC_MAX_ID; j++) {
934 if (hostdata->port_db[j].wwn == hostdata->tempmap[i].wwn || !hostdata->port_db[j].wwn) {
935 break;
936 }
937 }
938 if (j == QLOGICFC_MAX_ID + 1)
939 printk("qlogicfc%d : Too many scsi devices, no more room in port map.\n", hostdata->host_id);
940 if (!hostdata->port_db[j].wwn) {
941 hostdata->port_db[j].loop_id = hostdata->tempmap[i].loop_id;
942 hostdata->port_db[j].wwn = hostdata->tempmap[i].wwn;
943 }
944 } else
945 hostdata->port_db[i].loop_id = hostdata->tempmap[i].loop_id;
946
947 }
948
949 isp2x00_enable_irqs(host);
950
951 return 0;
952}
953
954
955#if ISP2x00_FABRIC
956
957#define FABRIC_PORT 0x7e
958#define FABRIC_CONTROLLER 0x7f
959#define FABRIC_SNS 0x80
960
961int isp2x00_init_fabric(struct Scsi_Host *host, struct id_name_map *port_db, int cur_scsi_id)
962{
963
964 u_short param[8];
965 u64 wwn;
966 int done = 0;
967 u_short loop_id = 0x81;
968 u_short scsi_id = cur_scsi_id;
969 u_int port_id;
970 struct sns_cb *req;
971 u_char *sns_response;
972 dma_addr_t busaddr;
973 struct isp2x00_hostdata *hostdata;
974
975 hostdata = (struct isp2x00_hostdata *) host->hostdata;
976
977 DEBUG_FABRIC(printk("qlogicfc%d : Checking for a fabric.\n", hostdata->host_id));
978 param[0] = MBOX_GET_PORT_NAME;
979 param[1] = (u16)FABRIC_PORT << 8;
980
981 isp2x00_mbox_command(host, param);
982
983 if (param[0] != MBOX_COMMAND_COMPLETE) {
984 DEBUG_FABRIC(printk("qlogicfc%d : fabric check result %x\n", hostdata->host_id, param[0]));
985 return 0;
986 }
987 printk("qlogicfc%d : Fabric found.\n", hostdata->host_id);
988
989 req = (struct sns_cb *)pci_alloc_consistent(hostdata->pci_dev, sizeof(*req) + 608, &busaddr);
990
991 if (!req){
992 printk("qlogicfc%d : Could not allocate DMA resources for fabric initialization\n", hostdata->host_id);
993 return 0;
994 }
995 sns_response = (u_char *)(req + 1);
996
997 if (hostdata->adapter_state & AS_REDO_LOOP_PORTDB){
998 memset(req, 0, sizeof(*req));
999
1000 req->len = cpu_to_le16(8);
1001 req->response_low = cpu_to_le32(pci64_dma_lo32(busaddr + sizeof(*req)));
1002 req->response_high = cpu_to_le32(pci64_dma_hi32(busaddr + sizeof(*req)));
1003 req->sub_len = cpu_to_le16(22);
1004 req->data[0] = 0x17;
1005 req->data[1] = 0x02;
1006 req->data[8] = (u_char) (hostdata->port_id & 0xff);
1007 req->data[9] = (u_char) (hostdata->port_id >> 8 & 0xff);
1008 req->data[10] = (u_char) (hostdata->port_id >> 16 & 0xff);
1009 req->data[13] = 0x01;
1010 param[0] = MBOX_SEND_SNS;
1011 param[1] = 30;
1012 param[2] = pci64_dma_lo32(busaddr) >> 16;
1013 param[3] = pci64_dma_lo32(busaddr);
1014 param[6] = pci64_dma_hi32(busaddr) >> 16;
1015 param[7] = pci64_dma_hi32(busaddr);
1016
1017 isp2x00_mbox_command(host, param);
1018
1019 if (param[0] != MBOX_COMMAND_COMPLETE)
1020 printk("qlogicfc%d : error sending RFC-4\n", hostdata->host_id);
1021 }
1022
1023 port_id = hostdata->port_id;
1024 while (!done) {
1025 memset(req, 0, sizeof(*req));
1026
1027 req->len = cpu_to_le16(304);
1028 req->response_low = cpu_to_le32(pci64_dma_lo32(busaddr + sizeof(*req)));
1029 req->response_high = cpu_to_le32(pci64_dma_hi32(busaddr + sizeof(*req)));
1030 req->sub_len = cpu_to_le16(6);
1031 req->data[0] = 0x00;
1032 req->data[1] = 0x01;
1033 req->data[8] = (u_char) (port_id & 0xff);
1034 req->data[9] = (u_char) (port_id >> 8 & 0xff);
1035 req->data[10] = (u_char) (port_id >> 16 & 0xff);
1036
1037 param[0] = MBOX_SEND_SNS;
1038 param[1] = 14;
1039 param[2] = pci64_dma_lo32(busaddr) >> 16;
1040 param[3] = pci64_dma_lo32(busaddr);
1041 param[6] = pci64_dma_hi32(busaddr) >> 16;
1042 param[7] = pci64_dma_hi32(busaddr);
1043
1044 isp2x00_mbox_command(host, param);
1045
1046 if (param[0] == MBOX_COMMAND_COMPLETE) {
1047 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]));
1048 DEBUG_FABRIC(printk(" port id: %02x%02x%02x\n", sns_response[17], sns_response[18], sns_response[19]));
1049 port_id = ((u_int) sns_response[17]) << 16;
1050 port_id |= ((u_int) sns_response[18]) << 8;
1051 port_id |= ((u_int) sns_response[19]);
1052 wwn = ((u64) sns_response[20]) << 56;
1053 wwn |= ((u64) sns_response[21]) << 48;
1054 wwn |= ((u64) sns_response[22]) << 40;
1055 wwn |= ((u64) sns_response[23]) << 32;
1056 wwn |= ((u64) sns_response[24]) << 24;
1057 wwn |= ((u64) sns_response[25]) << 16;
1058 wwn |= ((u64) sns_response[26]) << 8;
1059 wwn |= ((u64) sns_response[27]);
1060 if (hostdata->port_id >> 8 != port_id >> 8) {
1061 DEBUG_FABRIC(printk("qlogicfc%d : adding a fabric port: %x\n", hostdata->host_id, port_id));
1062 param[0] = MBOX_PORT_LOGIN;
1063 param[1] = loop_id << 8;
1064 param[2] = (u_short) (port_id >> 16);
1065 param[3] = (u_short) (port_id);
1066
1067 isp2x00_mbox_command(host, param);
1068
1069 if (param[0] == MBOX_COMMAND_COMPLETE) {
1070 port_db[scsi_id].wwn = wwn;
1071 port_db[scsi_id].loop_id = loop_id;
1072 loop_id++;
1073 scsi_id++;
1074 } else {
1075 printk("qlogicfc%d : Error performing port login %x\n", hostdata->host_id, param[0]);
1076 DEBUG_FABRIC(printk("qlogicfc%d : loop_id: %x\n", hostdata->host_id, loop_id));
1077 param[0] = MBOX_PORT_LOGOUT;
1078 param[1] = loop_id << 8;
1079 param[2] = 0;
1080 param[3] = 0;
1081
1082 isp2x00_mbox_command(host, param);
1083
1084 }
1085
1086 }
1087 if (hostdata->port_id == port_id)
1088 done = 1;
1089 } else {
1090 printk("qlogicfc%d : Get All Next failed %x.\n", hostdata->host_id, param[0]);
1091 pci_free_consistent(hostdata->pci_dev, sizeof(*req) + 608, req, busaddr);
1092 return 0;
1093 }
1094 }
1095
1096 pci_free_consistent(hostdata->pci_dev, sizeof(*req) + 608, req, busaddr);
1097 return 1;
1098}
1099
1100#endif /* ISP2x00_FABRIC */
1101
1102
1103static int isp2x00_release(struct Scsi_Host *host)
1104{
1105 struct isp2x00_hostdata *hostdata;
1106 dma_addr_t busaddr;
1107
1108 ENTER("isp2x00_release");
1109
1110 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1111
1112 outw(0x0, host->io_port + PCI_INTER_CTL);
1113 free_irq(host->irq, host);
1114
1115 release_region(host->io_port, 0xff);
1116
1117 busaddr = pci64_dma_build(le32_to_cpu(hostdata->control_block.res_queue_addr_high),
1118 le32_to_cpu(hostdata->control_block.res_queue_addr_lo));
1119 pci_free_consistent(hostdata->pci_dev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
1120
1121 LEAVE("isp2x00_release");
1122
1123 return 0;
1124}
1125
1126
1127static const char *isp2x00_info(struct Scsi_Host *host)
1128{
1129 static char buf[80];
1130 struct isp2x00_hostdata *hostdata;
1131 ENTER("isp2x00_info");
1132
1133 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1134 sprintf(buf,
1135 "QLogic ISP%04x SCSI on PCI bus %02x device %02x irq %d base 0x%lx",
1136 hostdata->pci_dev->device, hostdata->pci_dev->bus->number, hostdata->pci_dev->devfn, host->irq,
1137 host->io_port);
1138
1139
1140 LEAVE("isp2x00_info");
1141
1142 return buf;
1143}
1144
1145
1146/*
1147 * The middle SCSI layer ensures that queuecommand never gets invoked
1148 * concurrently with itself or the interrupt handler (though the
1149 * interrupt handler may call this routine as part of
1150 * request-completion handling).
1151 */
1152static int isp2x00_queuecommand(Scsi_Cmnd * Cmnd, void (*done) (Scsi_Cmnd *))
1153{
1154 int i, sg_count, n, num_free;
1155 u_int in_ptr, out_ptr;
1156 struct dataseg *ds;
1157 struct scatterlist *sg;
1158 struct Command_Entry *cmd;
1159 struct Continuation_Entry *cont;
1160 struct Scsi_Host *host;
1161 struct isp2x00_hostdata *hostdata;
1162
1163 ENTER("isp2x00_queuecommand");
1164
1165 host = Cmnd->device->host;
1166 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1167 Cmnd->scsi_done = done;
1168
1169 DEBUG(isp2x00_print_scsi_cmd(Cmnd));
1170
1171 if (hostdata->adapter_state & AS_REDO_FABRIC_PORTDB || hostdata->adapter_state & AS_REDO_LOOP_PORTDB) {
1172 isp2x00_make_portdb(host);
1173 hostdata->adapter_state = AS_LOOP_GOOD;
1174 printk("qlogicfc%d : Port Database\n", hostdata->host_id);
1175 for (i = 0; hostdata->port_db[i].wwn != 0; i++) {
1176 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);
1177 if (hostdata->port_db[i].loop_id != hostdata->port_db[0].loop_id || i == 0)
1178 printk("%x", hostdata->port_db[i].loop_id);
1179 else
1180 printk("Not Available");
1181 printk("\n");
1182 }
1183 }
1184 if (hostdata->adapter_state == AS_FIRMWARE_DEAD) {
1185 printk("qlogicfc%d : The firmware is dead, just return.\n", hostdata->host_id);
1186 host->max_id = 0;
1187 return 0;
1188 }
1189
1190 out_ptr = inw(host->io_port + MBOX4);
1191 in_ptr = hostdata->req_in_ptr;
1192
1193 DEBUG(printk("qlogicfc%d : request queue depth %d\n", hostdata->host_id,
1194 REQ_QUEUE_DEPTH(in_ptr, out_ptr)));
1195
1196 cmd = (struct Command_Entry *) &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
1197 in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
1198 if (in_ptr == out_ptr) {
1199 DEBUG(printk("qlogicfc%d : request queue overflow\n", hostdata->host_id));
1200 return 1;
1201 }
1202 if (hostdata->send_marker) {
1203 struct Marker_Entry *marker;
1204
1205 TRACE("queue marker", in_ptr, 0);
1206
1207 DEBUG(printk("qlogicfc%d : adding marker entry\n", hostdata->host_id));
1208 marker = (struct Marker_Entry *) cmd;
1209 memset(marker, 0, sizeof(struct Marker_Entry));
1210
1211 marker->hdr.entry_type = ENTRY_MARKER;
1212 marker->hdr.entry_cnt = 1;
1213 marker->modifier = SYNC_ALL;
1214
1215 hostdata->send_marker = 0;
1216
1217 if (((in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN) == out_ptr) {
1218 outw(in_ptr, host->io_port + MBOX4);
1219 hostdata->req_in_ptr = in_ptr;
1220 DEBUG(printk("qlogicfc%d : request queue overflow\n", hostdata->host_id));
1221 return 1;
1222 }
1223 cmd = (struct Command_Entry *) &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
1224 in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
1225 }
1226 TRACE("queue command", in_ptr, Cmnd);
1227
1228 memset(cmd, 0, sizeof(struct Command_Entry));
1229
1230 /* find a free handle mapping slot */
1231 for (i = in_ptr; i != (in_ptr - 1) && hostdata->handle_ptrs[i]; i = ((i + 1) % (QLOGICFC_REQ_QUEUE_LEN + 1)));
1232
1233 if (!hostdata->handle_ptrs[i]) {
1234 cmd->handle = cpu_to_le32(i);
1235 hostdata->handle_ptrs[i] = Cmnd;
1236 hostdata->handle_serials[i] = Cmnd->serial_number;
1237 } else {
1238 printk("qlogicfc%d : no handle slots, this should not happen.\n", hostdata->host_id);
1239 printk("hostdata->queued is %x, in_ptr: %x\n", hostdata->queued, in_ptr);
1240 for (i = 0; i <= QLOGICFC_REQ_QUEUE_LEN; i++){
1241 if (!hostdata->handle_ptrs[i]){
1242 printk("slot %d has %p\n", i, hostdata->handle_ptrs[i]);
1243 }
1244 }
1245 return 1;
1246 }
1247
1248 cmd->hdr.entry_type = ENTRY_COMMAND;
1249 cmd->hdr.entry_cnt = 1;
1250 cmd->target_lun = Cmnd->device->lun;
1251 cmd->expanded_lun = cpu_to_le16(Cmnd->device->lun);
1252#if ISP2x00_PORTDB
1253 cmd->target_id = hostdata->port_db[Cmnd->device->id].loop_id;
1254#else
1255 cmd->target_id = Cmnd->target;
1256#endif
1257 cmd->total_byte_cnt = cpu_to_le32(Cmnd->request_bufflen);
1258 cmd->time_out = 0;
1259 memcpy(cmd->cdb, Cmnd->cmnd, Cmnd->cmd_len);
1260
1261 if (Cmnd->use_sg) {
1262 sg = (struct scatterlist *) Cmnd->request_buffer;
be7db055 1263 sg_count = pci_map_sg(hostdata->pci_dev, sg, Cmnd->use_sg, Cmnd->sc_data_direction);
1da177e4
LT		 1264 cmd->segment_cnt = cpu_to_le16(sg_count);
1265 ds = cmd->dataseg;
1266 /* fill in first two sg entries: */
1267 n = sg_count;
1268 if (n > DATASEGS_PER_COMMAND)
1269 n = DATASEGS_PER_COMMAND;
1270
1271 for (i = 0; i < n; i++) {
1272 ds[i].d_base = cpu_to_le32(pci64_dma_lo32(sg_dma_address(sg)));
1273 ds[i].d_base_hi = cpu_to_le32(pci64_dma_hi32(sg_dma_address(sg)));
1274 ds[i].d_count = cpu_to_le32(sg_dma_len(sg));
1275 ++sg;
1276 }
1277 sg_count -= DATASEGS_PER_COMMAND;
1278
1279 while (sg_count > 0) {
1280 ++cmd->hdr.entry_cnt;
1281 cont = (struct Continuation_Entry *)
1282 &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
1283 memset(cont, 0, sizeof(struct Continuation_Entry));
1284 in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
1285 if (in_ptr == out_ptr) {
1286 DEBUG(printk("qlogicfc%d : unexpected request queue overflow\n", hostdata->host_id));
1287 return 1;
1288 }
1289 TRACE("queue continuation", in_ptr, 0);
1290 cont->hdr.entry_type = ENTRY_CONTINUATION;
1291 ds = cont->dataseg;
1292 n = sg_count;
1293 if (n > DATASEGS_PER_CONT)
1294 n = DATASEGS_PER_CONT;
1295 for (i = 0; i < n; ++i) {
1296 ds[i].d_base = cpu_to_le32(pci64_dma_lo32(sg_dma_address(sg)));
1297 ds[i].d_base_hi = cpu_to_le32(pci64_dma_hi32(sg_dma_address(sg)));
1298 ds[i].d_count = cpu_to_le32(sg_dma_len(sg));
1299 ++sg;
1300 }
1301 sg_count -= n;
1302 }
1303 } else if (Cmnd->request_bufflen && Cmnd->sc_data_direction != PCI_DMA_NONE) {
1304 struct page *page = virt_to_page(Cmnd->request_buffer);
1305 unsigned long offset = offset_in_page(Cmnd->request_buffer);
1306 dma_addr_t busaddr = pci_map_page(hostdata->pci_dev,
1307 page, offset,
1308 Cmnd->request_bufflen,
be7db055 1309 Cmnd->sc_data_direction);
1da177e4
LT		 1310 Cmnd->SCp.dma_handle = busaddr;
1311
1312 cmd->dataseg[0].d_base = cpu_to_le32(pci64_dma_lo32(busaddr));
1313 cmd->dataseg[0].d_base_hi = cpu_to_le32(pci64_dma_hi32(busaddr));
1314 cmd->dataseg[0].d_count = cpu_to_le32(Cmnd->request_bufflen);
1315 cmd->segment_cnt = cpu_to_le16(1);
1316 } else {
1317 cmd->dataseg[0].d_base = 0;
1318 cmd->dataseg[0].d_base_hi = 0;
1319 cmd->segment_cnt = cpu_to_le16(1); /* Shouldn't this be 0? */
1320 }
1321
be7db055 1322 if (Cmnd->sc_data_direction == DMA_TO_DEVICE)
1da177e4
LT		 1323 cmd->control_flags = cpu_to_le16(CFLAG_WRITE);
1324 else
1325 cmd->control_flags = cpu_to_le16(CFLAG_READ);
1326
1327 if (Cmnd->device->tagged_supported) {
1328 if ((jiffies - hostdata->tag_ages[Cmnd->device->id]) > (2 * ISP_TIMEOUT)) {
1329 cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG);
1330 hostdata->tag_ages[Cmnd->device->id] = jiffies;
1331 } else
1332 switch (Cmnd->tag) {
1333 case HEAD_OF_QUEUE_TAG:
1334 cmd->control_flags |= cpu_to_le16(CFLAG_HEAD_TAG);
1335 break;
1336 case ORDERED_QUEUE_TAG:
1337 cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG);
1338 break;
1339 default:
1340 cmd->control_flags |= cpu_to_le16(CFLAG_SIMPLE_TAG);
1341 break;
1342 }
1343 }
1344 /*
1345 * TEST_UNIT_READY commands from scsi_scan will fail due to "overlapped
1346 * commands attempted" unless we setup at least a simple queue (midlayer
1347 * will embelish this once it can do an INQUIRY command to the device)
1348 */
1349 else
1350 cmd->control_flags |= cpu_to_le16(CFLAG_SIMPLE_TAG);
1351 outw(in_ptr, host->io_port + MBOX4);
1352 hostdata->req_in_ptr = in_ptr;
1353
1354 hostdata->queued++;
1355
1356 num_free = QLOGICFC_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr);
1357 num_free = (num_free > 2) ? num_free - 2 : 0;
1358 host->can_queue = host->host_busy + num_free;
1359 if (host->can_queue > QLOGICFC_REQ_QUEUE_LEN)
1360 host->can_queue = QLOGICFC_REQ_QUEUE_LEN;
1361 host->sg_tablesize = QLOGICFC_MAX_SG(num_free);
1362
1363 LEAVE("isp2x00_queuecommand");
1364
1365 return 0;
1366}
1367
1368
1369/* we have received an event, such as a lip or an RSCN, which may mean that
1370 * our port database is incorrect so the port database must be recreated.
1371 */
1372static void redo_port_db(unsigned long arg)
1373{
1374
1375 struct Scsi_Host * host = (struct Scsi_Host *) arg;
1376 struct isp2x00_hostdata * hostdata;
1377 unsigned long flags;
1378 int i;
1379
1380 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1381 hostdata->explore_timer.data = 0;
1382 del_timer(&hostdata->explore_timer);
1383
1384 spin_lock_irqsave(host->host_lock, flags);
1385
1386 if (hostdata->adapter_state & AS_REDO_FABRIC_PORTDB || hostdata->adapter_state & AS_REDO_LOOP_PORTDB) {
1387 isp2x00_make_portdb(host);
1388 printk("qlogicfc%d : Port Database\n", hostdata->host_id);
1389 for (i = 0; hostdata->port_db[i].wwn != 0; i++) {
1390 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);
1391 if (hostdata->port_db[i].loop_id != hostdata->port_db[0].loop_id || i == 0)
1392 printk("%x", hostdata->port_db[i].loop_id);
1393 else
1394 printk("Not Available");
1395 printk("\n");
1396 }
1397
1398 for (i = 0; i < QLOGICFC_REQ_QUEUE_LEN; i++){
1399 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)){
1400 if (hostdata->port_db[hostdata->handle_ptrs[i]->device->id].loop_id != hostdata->port_db[0].loop_id){
1401 Scsi_Cmnd *Cmnd = hostdata->handle_ptrs[i];
1402
1403 if (Cmnd->use_sg)
1404 pci_unmap_sg(hostdata->pci_dev,
1405 (struct scatterlist *)Cmnd->buffer,
1406 Cmnd->use_sg,
be7db055 1407 Cmnd->sc_data_direction);
1da177e4
LT		 1408 else if (Cmnd->request_bufflen &&
1409 Cmnd->sc_data_direction != PCI_DMA_NONE) {
1410 pci_unmap_page(hostdata->pci_dev,
1411 Cmnd->SCp.dma_handle,
1412 Cmnd->request_bufflen,
be7db055 1413 Cmnd->sc_data_direction);
1da177e4
LT		 1414 }
1415
1416 hostdata->handle_ptrs[i]->result = DID_SOFT_ERROR << 16;
1417
1418 if (hostdata->handle_ptrs[i]->scsi_done){
1419 (*hostdata->handle_ptrs[i]->scsi_done) (hostdata->handle_ptrs[i]);
1420 }
1421 else printk("qlogicfc%d : done is null?\n", hostdata->host_id);
1422 hostdata->handle_ptrs[i] = NULL;
1423 hostdata->handle_serials[i] = 0;
1424 }
1425 }
1426 }
1427
1428 hostdata->adapter_state = AS_LOOP_GOOD;
1429 }
1430
1431 spin_unlock_irqrestore(host->host_lock, flags);
1432
1433}
1434
1435#define ASYNC_EVENT_INTERRUPT 0x01
1436
1437irqreturn_t do_isp2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
1438{
1439 struct Scsi_Host *host = dev_id;
1440 unsigned long flags;
1441
1442 spin_lock_irqsave(host->host_lock, flags);
1443 isp2x00_intr_handler(irq, dev_id, regs);
1444 spin_unlock_irqrestore(host->host_lock, flags);
1445
1446 return IRQ_HANDLED;
1447}
1448
1449void isp2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
1450{
1451 Scsi_Cmnd *Cmnd;
1452 struct Status_Entry *sts;
1453 struct Scsi_Host *host = dev_id;
1454 struct isp2x00_hostdata *hostdata;
1455 u_int in_ptr, out_ptr, handle, num_free;
1456 u_short status;
1457
1458 ENTER_INTR("isp2x00_intr_handler");
1459
1460 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1461
1462 DEBUG_INTR(printk("qlogicfc%d : interrupt on line %d\n", hostdata->host_id, irq));
1463
1464 if (!(inw(host->io_port + PCI_INTER_STS) & 0x08)) {
1465 /* spurious interrupts can happen legally */
1466 DEBUG_INTR(printk("qlogicfc%d : got spurious interrupt\n", hostdata->host_id));
1467 return;
1468 }
1469 in_ptr = inw(host->io_port + MBOX5);
1470 out_ptr = hostdata->res_out_ptr;
1471
1472 if ((inw(host->io_port + PCI_SEMAPHORE) & ASYNC_EVENT_INTERRUPT)) {
1473 status = inw(host->io_port + MBOX0);
1474
1475 DEBUG_INTR(printk("qlogicfc%d : mbox completion status: %x\n",
1476 hostdata->host_id, status));
1477
1478 switch (status) {
1479 case LOOP_UP:
1480 case POINT_TO_POINT_UP:
1481 printk("qlogicfc%d : Link is Up\n", hostdata->host_id);
1482 hostdata->adapter_state = AS_REDO_FABRIC_PORTDB | AS_REDO_LOOP_PORTDB;
1483 break;
1484 case LOOP_DOWN:
1485 printk("qlogicfc%d : Link is Down\n", hostdata->host_id);
1486 hostdata->adapter_state = AS_LOOP_DOWN;
1487 break;
1488 case CONNECTION_MODE:
1489 printk("received CONNECTION_MODE irq %x\n", inw(host->io_port + MBOX1));
1490 break;
1491 case CHANGE_NOTIFICATION:
1492 printk("qlogicfc%d : RSCN Received\n", hostdata->host_id);
1493 if (hostdata->adapter_state == AS_LOOP_GOOD)
1494 hostdata->adapter_state = AS_REDO_FABRIC_PORTDB;
1495 break;
1496 case LIP_OCCURRED:
1497 case LIP_RECEIVED:
1498 printk("qlogicfc%d : Loop Reinitialized\n", hostdata->host_id);
1499 if (hostdata->adapter_state == AS_LOOP_GOOD)
1500 hostdata->adapter_state = AS_REDO_LOOP_PORTDB;
1501 break;
1502 case SYSTEM_ERROR:
1503 printk("qlogicfc%d : The firmware just choked.\n", hostdata->host_id);
1504 hostdata->adapter_state = AS_FIRMWARE_DEAD;
1505 break;
1506 case SCSI_COMMAND_COMPLETE:
1507 handle = inw(host->io_port + MBOX1) | (inw(host->io_port + MBOX2) << 16);
1508 Cmnd = hostdata->handle_ptrs[handle];
1509 hostdata->handle_ptrs[handle] = NULL;
1510 hostdata->handle_serials[handle] = 0;
1511 hostdata->queued--;
1512 if (Cmnd != NULL) {
1513 if (Cmnd->use_sg)
1514 pci_unmap_sg(hostdata->pci_dev,
1515 (struct scatterlist *)Cmnd->buffer,
1516 Cmnd->use_sg,
be7db055 1517 Cmnd->sc_data_direction);
1da177e4
LT		 1518 else if (Cmnd->request_bufflen &&
1519 Cmnd->sc_data_direction != PCI_DMA_NONE)
1520 pci_unmap_page(hostdata->pci_dev,
1521 Cmnd->SCp.dma_handle,
1522 Cmnd->request_bufflen,
be7db055 1523 Cmnd->sc_data_direction);
1da177e4
LT		 1524 Cmnd->result = 0x0;
1525 (*Cmnd->scsi_done) (Cmnd);
1526 } else
1527 printk("qlogicfc%d.c : got a null value out of handle_ptrs, this sucks\n", hostdata->host_id);
1528 break;
1529 case MBOX_COMMAND_COMPLETE:
1530 case INVALID_COMMAND:
1531 case HOST_INTERFACE_ERROR:
1532 case TEST_FAILED:
1533 case COMMAND_ERROR:
1534 case COMMAND_PARAM_ERROR:
1535 case PORT_ID_USED:
1536 case LOOP_ID_USED:
1537 case ALL_IDS_USED:
1538 hostdata->mbox_done = 1;
1539 outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
1540 return;
1541 default:
1542 printk("qlogicfc%d : got an unknown status? %x\n", hostdata->host_id, status);
1543 }
1544 if ((hostdata->adapter_state & AS_REDO_LOOP_PORTDB || hostdata->adapter_state & AS_REDO_FABRIC_PORTDB) && hostdata->explore_timer.data == 0){
1545 hostdata->explore_timer.function = redo_port_db;
1546 hostdata->explore_timer.data = (unsigned long)host;
1547 hostdata->explore_timer.expires = jiffies + (HZ/4);
1548 init_timer(&hostdata->explore_timer);
1549 add_timer(&hostdata->explore_timer);
1550 }
1551 outw(0x0, host->io_port + PCI_SEMAPHORE);
1552 } else {
1553 DEBUG_INTR(printk("qlogicfc%d : response queue update\n", hostdata->host_id));
1554 DEBUG_INTR(printk("qlogicfc%d : response queue depth %d\n", hostdata->host_id, RES_QUEUE_DEPTH(in_ptr, out_ptr)));
1555
1556 while (out_ptr != in_ptr) {
1557 unsigned le_hand;
1558 sts = (struct Status_Entry *) &hostdata->res[out_ptr*QUEUE_ENTRY_LEN];
1559 out_ptr = (out_ptr + 1) & RES_QUEUE_LEN;
1560
1561 TRACE("done", out_ptr, Cmnd);
1562 DEBUG_INTR(isp2x00_print_status_entry(sts));
1563 le_hand = le32_to_cpu(sts->handle);
1564 if (sts->hdr.entry_type == ENTRY_STATUS && (Cmnd = hostdata->handle_ptrs[le_hand])) {
1565 Cmnd->result = isp2x00_return_status(Cmnd, sts);
1566 hostdata->queued--;
1567
1568 if (Cmnd->use_sg)
1569 pci_unmap_sg(hostdata->pci_dev,
1570 (struct scatterlist *)Cmnd->buffer, Cmnd->use_sg,
be7db055 1571 Cmnd->sc_data_direction);
1da177e4
LT		 1572 else if (Cmnd->request_bufflen && Cmnd->sc_data_direction != PCI_DMA_NONE)
1573 pci_unmap_page(hostdata->pci_dev,
1574 Cmnd->SCp.dma_handle,
1575 Cmnd->request_bufflen,
be7db055 1576 Cmnd->sc_data_direction);
1da177e4
LT		 1577
1578 /*
1579 * if any of the following are true we do not
1580 * call scsi_done. if the status is CS_ABORTED
1581 * we don't have to call done because the upper
1582 * level should already know its aborted.
1583 */
1584 if (hostdata->handle_serials[le_hand] != Cmnd->serial_number
1585 || le16_to_cpu(sts->completion_status) == CS_ABORTED){
1586 hostdata->handle_serials[le_hand] = 0;
1587 hostdata->handle_ptrs[le_hand] = NULL;
1588 outw(out_ptr, host->io_port + MBOX5);
1589 continue;
1590 }
1591 /*
1592 * if we get back an error indicating the port
1593 * is not there or if the link is down and
1594 * this is a device that used to be there
1595 * allow the command to timeout.
1596 * the device may well be back in a couple of
1597 * seconds.
1598 */
1599 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){
1600 outw(out_ptr, host->io_port + MBOX5);
1601 continue;
1602 }
1603 } else {
1604 outw(out_ptr, host->io_port + MBOX5);
1605 continue;
1606 }
1607
1608 hostdata->handle_ptrs[le_hand] = NULL;
1609
1610 if (sts->completion_status == cpu_to_le16(CS_RESET_OCCURRED)
1611 || (sts->status_flags & cpu_to_le16(STF_BUS_RESET)))
1612 hostdata->send_marker = 1;
1613
1614 if (le16_to_cpu(sts->scsi_status) & 0x0200)
1615 memcpy(Cmnd->sense_buffer, sts->req_sense_data,
1616 sizeof(Cmnd->sense_buffer));
1617
1618 outw(out_ptr, host->io_port + MBOX5);
1619
1620 if (Cmnd->scsi_done != NULL) {
1621 (*Cmnd->scsi_done) (Cmnd);
1622 } else
1623 printk("qlogicfc%d : Ouch, scsi done is NULL\n", hostdata->host_id);
1624 }
1625 hostdata->res_out_ptr = out_ptr;
1626 }
1627
1628
1629 out_ptr = inw(host->io_port + MBOX4);
1630 in_ptr = hostdata->req_in_ptr;
1631
1632 num_free = QLOGICFC_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr);
1633 num_free = (num_free > 2) ? num_free - 2 : 0;
1634 host->can_queue = host->host_busy + num_free;
1635 if (host->can_queue > QLOGICFC_REQ_QUEUE_LEN)
1636 host->can_queue = QLOGICFC_REQ_QUEUE_LEN;
1637 host->sg_tablesize = QLOGICFC_MAX_SG(num_free);
1638
1639 outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
1640 LEAVE_INTR("isp2x00_intr_handler");
1641}
1642
1643
1644static int isp2x00_return_status(Scsi_Cmnd *Cmnd, struct Status_Entry *sts)
1645{
1646 int host_status = DID_ERROR;
1647#if DEBUG_ISP2x00_INTR
1648 static char *reason[] =
1649 {
1650 "DID_OK",
1651 "DID_NO_CONNECT",
1652 "DID_BUS_BUSY",
1653 "DID_TIME_OUT",
1654 "DID_BAD_TARGET",
1655 "DID_ABORT",
1656 "DID_PARITY",
1657 "DID_ERROR",
1658 "DID_RESET",
1659 "DID_BAD_INTR"
1660 };
1661#endif /* DEBUG_ISP2x00_INTR */
1662
1663 ENTER("isp2x00_return_status");
1664
1665 DEBUG(printk("qlogicfc : completion status = 0x%04x\n",
1666 le16_to_cpu(sts->completion_status)));
1667
1668 switch (le16_to_cpu(sts->completion_status)) {
1669 case CS_COMPLETE:
1670 host_status = DID_OK;
1671 break;
1672 case CS_DMA_ERROR:
1673 host_status = DID_ERROR;
1674 break;
1675 case CS_RESET_OCCURRED:
1676 host_status = DID_RESET;
1677 break;
1678 case CS_ABORTED:
1679 host_status = DID_ABORT;
1680 break;
1681 case CS_TIMEOUT:
1682 host_status = DID_TIME_OUT;
1683 break;
1684 case CS_DATA_OVERRUN:
1685 host_status = DID_ERROR;
1686 break;
1687 case CS_DATA_UNDERRUN:
1688 if (Cmnd->underflow <= (Cmnd->request_bufflen - le32_to_cpu(sts->residual)))
1689 host_status = DID_OK;
1690 else
1691 host_status = DID_ERROR;
1692 break;
1693 case CS_PORT_UNAVAILABLE:
1694 case CS_PORT_LOGGED_OUT:
1695 case CS_PORT_CONFIG_CHANGED:
1696 host_status = DID_BAD_TARGET;
1697 break;
1698 case CS_QUEUE_FULL:
1699 host_status = DID_ERROR;
1700 break;
1701 default:
1702 printk("qlogicfc : unknown completion status 0x%04x\n",
1703 le16_to_cpu(sts->completion_status));
1704 host_status = DID_ERROR;
1705 break;
1706 }
1707
1708 DEBUG_INTR(printk("qlogicfc : host status (%s) scsi status %x\n",
1709 reason[host_status], le16_to_cpu(sts->scsi_status)));
1710
1711 LEAVE("isp2x00_return_status");
1712
1713 return (le16_to_cpu(sts->scsi_status) & STATUS_MASK) | (host_status << 16);
1714}
1715
1716
1717static int isp2x00_abort(Scsi_Cmnd * Cmnd)
1718{
1719 u_short param[8];
1720 int i;
1721 struct Scsi_Host *host;
1722 struct isp2x00_hostdata *hostdata;
1723 int return_status = SUCCESS;
1724
1725 ENTER("isp2x00_abort");
1726
1727 host = Cmnd->device->host;
1728 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1729
1730 for (i = 0; i < QLOGICFC_REQ_QUEUE_LEN; i++)
1731 if (hostdata->handle_ptrs[i] == Cmnd)
1732 break;
1733
1734 if (i == QLOGICFC_REQ_QUEUE_LEN){
1735 return SUCCESS;
1736 }
1737
1738 isp2x00_disable_irqs(host);
1739
1740 param[0] = MBOX_ABORT_IOCB;
1741#if ISP2x00_PORTDB
1742 param[1] = (((u_short) hostdata->port_db[Cmnd->device->id].loop_id) << 8) | Cmnd->device->lun;
1743#else
1744 param[1] = (((u_short) Cmnd->target) << 8) | Cmnd->lun;
1745#endif
1746 param[2] = i & 0xffff;
1747 param[3] = i >> 16;
1748
1749 isp2x00_mbox_command(host, param);
1750
1751 if (param[0] != MBOX_COMMAND_COMPLETE) {
1752 printk("qlogicfc%d : scsi abort failure: %x\n", hostdata->host_id, param[0]);
1753 if (param[0] == 0x4005)
1754 Cmnd->result = DID_ERROR << 16;
1755 if (param[0] == 0x4006)
1756 Cmnd->result = DID_BAD_TARGET << 16;
1757 return_status = FAILED;
1758 }
1759
1760 if (return_status != SUCCESS){
1761 param[0] = MBOX_GET_FIRMWARE_STATE;
1762 isp2x00_mbox_command(host, param);
1763 printk("qlogicfc%d : abort failed\n", hostdata->host_id);
1764 printk("qlogicfc%d : firmware status is %x %x\n", hostdata->host_id, param[0], param[1]);
1765 }
1766
1767 isp2x00_enable_irqs(host);
1768
1769 LEAVE("isp2x00_abort");
1770
1771 return return_status;
1772}
1773
1774
1775static int isp2x00_biosparam(struct scsi_device *sdev, struct block_device *n,
1776 sector_t capacity, int ip[])
1777{
1778 int size = capacity;
1779
1780 ENTER("isp2x00_biosparam");
1781
1782 ip[0] = 64;
1783 ip[1] = 32;
1784 ip[2] = size >> 11;
1785 if (ip[2] > 1024) {
1786 ip[0] = 255;
1787 ip[1] = 63;
1788 ip[2] = size / (ip[0] * ip[1]);
1789 }
1790 LEAVE("isp2x00_biosparam");
1791
1792 return 0;
1793}
1794
1795static int isp2x00_reset_hardware(struct Scsi_Host *host)
1796{
1797 u_short param[8];
1798 struct isp2x00_hostdata *hostdata;
1799 int loop_count;
1800 dma_addr_t busaddr;
1801
1802 ENTER("isp2x00_reset_hardware");
1803
1804 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1805
1806 /*
1807 * This cannot be right - PCI writes are posted
1808 * (apparently this is hardware design flaw not software ?)
1809 */
1810
1811 outw(0x01, host->io_port + ISP_CTRL_STATUS);
1812 udelay(100);
1813 outw(HCCR_RESET, host->io_port + HOST_HCCR);
1814 udelay(100);
1815 outw(HCCR_RELEASE, host->io_port + HOST_HCCR);
1816 outw(HCCR_BIOS_DISABLE, host->io_port + HOST_HCCR);
1817
1818 loop_count = DEFAULT_LOOP_COUNT;
1819 while (--loop_count && inw(host->io_port + HOST_HCCR) == RISC_BUSY) {
1820 barrier();
1821 cpu_relax();
1822 }
1823 if (!loop_count)
1824 printk("qlogicfc%d : reset_hardware loop timeout\n", hostdata->host_id);
1825
1826
1827
1828#if DEBUG_ISP2x00
1829 printk("qlogicfc%d : mbox 0 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX0));
1830 printk("qlogicfc%d : mbox 1 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX1));
1831 printk("qlogicfc%d : mbox 2 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX2));
1832 printk("qlogicfc%d : mbox 3 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX3));
1833 printk("qlogicfc%d : mbox 4 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX4));
1834 printk("qlogicfc%d : mbox 5 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX5));
1835 printk("qlogicfc%d : mbox 6 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX6));
1836 printk("qlogicfc%d : mbox 7 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX7));
1837#endif /* DEBUG_ISP2x00 */
1838
1839 DEBUG(printk("qlogicfc%d : verifying checksum\n", hostdata->host_id));
1840
1841#if defined(CONFIG_SCSI_QLOGIC_FC_FIRMWARE)
1842 {
1843 int i;
1844 unsigned short * risc_code = NULL;
1845 unsigned short risc_code_len = 0;
1846 if (hostdata->pci_dev->device == PCI_DEVICE_ID_QLOGIC_ISP2100){
1847 risc_code = risc_code2100;
1848 risc_code_len = risc_code_length2100;
1849 }
1850 else if (hostdata->pci_dev->device == PCI_DEVICE_ID_QLOGIC_ISP2200){
1851 risc_code = risc_code2200;
1852 risc_code_len = risc_code_length2200;
1853 }
1854
1855 for (i = 0; i < risc_code_len; i++) {
1856 param[0] = MBOX_WRITE_RAM_WORD;
1857 param[1] = risc_code_addr01 + i;
1858 param[2] = risc_code[i];
1859
1860 isp2x00_mbox_command(host, param);
1861
1862 if (param[0] != MBOX_COMMAND_COMPLETE) {
1863 printk("qlogicfc%d : firmware load failure\n", hostdata->host_id);
1864 return 1;
1865 }
1866 }
1867 }
1868#endif /* RELOAD_FIRMWARE */
1869
1870 param[0] = MBOX_VERIFY_CHECKSUM;
1871 param[1] = risc_code_addr01;
1872
1873 isp2x00_mbox_command(host, param);
1874
1875 if (param[0] != MBOX_COMMAND_COMPLETE) {
1876 printk("qlogicfc%d : ram checksum failure\n", hostdata->host_id);
1877 return 1;
1878 }
1879 DEBUG(printk("qlogicfc%d : executing firmware\n", hostdata->host_id));
1880
1881 param[0] = MBOX_EXEC_FIRMWARE;
1882 param[1] = risc_code_addr01;
1883
1884 isp2x00_mbox_command(host, param);
1885
1886 param[0] = MBOX_ABOUT_FIRMWARE;
1887
1888 isp2x00_mbox_command(host, param);
1889
1890 if (param[0] != MBOX_COMMAND_COMPLETE) {
1891 printk("qlogicfc%d : about firmware failure\n", hostdata->host_id);
1892 return 1;
1893 }
1894 DEBUG(printk("qlogicfc%d : firmware major revision %d\n", hostdata->host_id, param[1]));
1895 DEBUG(printk("qlogicfc%d : firmware minor revision %d\n", hostdata->host_id, param[2]));
1896
1897#ifdef USE_NVRAM_DEFAULTS
1898
1899 if (isp2x00_get_nvram_defaults(host, &hostdata->control_block) != 0) {
1900 printk("qlogicfc%d : Could not read from NVRAM\n", hostdata->host_id);
1901 }
1902#endif
1903
1904 hostdata->wwn = (u64) (cpu_to_le16(hostdata->control_block.node_name[0])) << 56;
1905 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[0]) & 0xff00) << 48;
1906 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[1]) & 0xff00) << 24;
1907 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[1]) & 0x00ff) << 48;
1908 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[2]) & 0x00ff) << 24;
1909 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[2]) & 0xff00) << 8;
1910 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[3]) & 0x00ff) << 8;
1911 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[3]) & 0xff00) >> 8;
1912
1913 /* FIXME: If the DMA transfer goes one way only, this should use
1914 * PCI_DMA_TODEVICE and below as well.
1915 */
1916 busaddr = pci_map_page(hostdata->pci_dev,
1917 virt_to_page(&hostdata->control_block),
1918 offset_in_page(&hostdata->control_block),
1919 sizeof(hostdata->control_block),
1920 PCI_DMA_BIDIRECTIONAL);
1921
1922 param[0] = MBOX_INIT_FIRMWARE;
1923 param[2] = (u_short) (pci64_dma_lo32(busaddr) >> 16);
1924 param[3] = (u_short) (pci64_dma_lo32(busaddr) & 0xffff);
1925 param[4] = 0;
1926 param[5] = 0;
1927 param[6] = (u_short) (pci64_dma_hi32(busaddr) >> 16);
1928 param[7] = (u_short) (pci64_dma_hi32(busaddr) & 0xffff);
1929 isp2x00_mbox_command(host, param);
1930 if (param[0] != MBOX_COMMAND_COMPLETE) {
1931 printk("qlogicfc%d.c: Ouch 0x%04x\n", hostdata->host_id, param[0]);
1932 pci_unmap_page(hostdata->pci_dev, busaddr,
1933 sizeof(hostdata->control_block),
1934 PCI_DMA_BIDIRECTIONAL);
1935 return 1;
1936 }
1937 param[0] = MBOX_GET_FIRMWARE_STATE;
1938 isp2x00_mbox_command(host, param);
1939 if (param[0] != MBOX_COMMAND_COMPLETE) {
1940 printk("qlogicfc%d.c: 0x%04x\n", hostdata->host_id, param[0]);
1941 pci_unmap_page(hostdata->pci_dev, busaddr,
1942 sizeof(hostdata->control_block),
1943 PCI_DMA_BIDIRECTIONAL);
1944 return 1;
1945 }
1946
1947 pci_unmap_page(hostdata->pci_dev, busaddr,
1948 sizeof(hostdata->control_block),
1949 PCI_DMA_BIDIRECTIONAL);
1950 LEAVE("isp2x00_reset_hardware");
1951
1952 return 0;
1953}
1954
1955#ifdef USE_NVRAM_DEFAULTS
1956
1957static int isp2x00_get_nvram_defaults(struct Scsi_Host *host, struct init_cb *control_block)
1958{
1959
1960 u_short value;
1961 if (isp2x00_read_nvram_word(host, 0) != 0x5349)
1962 return 1;
1963
1964 value = isp2x00_read_nvram_word(host, 8);
1965 control_block->node_name[0] = cpu_to_le16(isp2x00_read_nvram_word(host, 9));
1966 control_block->node_name[1] = cpu_to_le16(isp2x00_read_nvram_word(host, 10));
1967 control_block->node_name[2] = cpu_to_le16(isp2x00_read_nvram_word(host, 11));
1968 control_block->node_name[3] = cpu_to_le16(isp2x00_read_nvram_word(host, 12));
1969 control_block->hard_addr = cpu_to_le16(isp2x00_read_nvram_word(host, 13));
1970
1971 return 0;
1972
1973}
1974
1975#endif
1976
1977static int isp2x00_init(struct Scsi_Host *sh)
1978{
1979 u_long io_base;
1980 struct isp2x00_hostdata *hostdata;
1981 u_char revision;
1982 u_int irq;
1983 u_short command;
1984 struct pci_dev *pdev;
1985
1986
1987 ENTER("isp2x00_init");
1988
1989 hostdata = (struct isp2x00_hostdata *) sh->hostdata;
1990 pdev = hostdata->pci_dev;
1991
1992 if (pci_read_config_word(pdev, PCI_COMMAND, &command)
1993 || pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision)) {
1994 printk("qlogicfc%d : error reading PCI configuration\n", hostdata->host_id);
1995 return 1;
1996 }
1997 io_base = pci_resource_start(pdev, 0);
1998 irq = pdev->irq;
1999
2000
2001 if (pdev->vendor != PCI_VENDOR_ID_QLOGIC) {
2002 printk("qlogicfc%d : 0x%04x is not QLogic vendor ID\n", hostdata->host_id,
2003 pdev->vendor);
2004 return 1;
2005 }
2006 if (pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2100 && pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2200) {
2007 printk("qlogicfc%d : 0x%04x does not match ISP2100 or ISP2200 device id\n", hostdata->host_id,
2008 pdev->device);
2009 return 1;
2010 }
2011 if (!(command & PCI_COMMAND_IO) ||
2012 !(pdev->resource[0].flags & IORESOURCE_IO)) {
2013 printk("qlogicfc%d : i/o mapping is disabled\n", hostdata->host_id);
2014 return 1;
2015 }
2016
2017 pci_set_master(pdev);
2018 if (revision != ISP2100_REV_ID1 && revision != ISP2100_REV_ID3 && revision != ISP2200_REV_ID5)
2019 printk("qlogicfc%d : new isp2x00 revision ID (%d)\n", hostdata->host_id, revision);
2020
2021
2022 hostdata->revision = revision;
2023
2024 sh->irq = irq;
2025 sh->io_port = io_base;
2026
2027 LEAVE("isp2x00_init");
2028
2029 return 0;
2030}
2031
2032#if USE_NVRAM_DEFAULTS
2033
2034#define NVRAM_DELAY() udelay(10) /* 10 microsecond delay */
2035
2036
2037u_short isp2x00_read_nvram_word(struct Scsi_Host * host, u_short byte)
2038{
2039 int i;
2040 u_short value, output, input;
2041
2042 outw(0x2, host->io_port + PCI_NVRAM);
2043 NVRAM_DELAY();
2044 outw(0x3, host->io_port + PCI_NVRAM);
2045 NVRAM_DELAY();
2046
2047 byte &= 0xff;
2048 byte |= 0x0600;
2049 for (i = 10; i >= 0; i--) {
2050 output = ((byte >> i) & 0x1) ? 0x4 : 0x0;
2051 outw(output | 0x2, host->io_port + PCI_NVRAM);
2052 NVRAM_DELAY();
2053 outw(output | 0x3, host->io_port + PCI_NVRAM);
2054 NVRAM_DELAY();
2055 outw(output | 0x2, host->io_port + PCI_NVRAM);
2056 NVRAM_DELAY();
2057 }
2058
2059 for (i = 0xf, value = 0; i >= 0; i--) {
2060 value <<= 1;
2061 outw(0x3, host->io_port + PCI_NVRAM);
2062 NVRAM_DELAY();
2063 input = inw(host->io_port + PCI_NVRAM);
2064 NVRAM_DELAY();
2065 outw(0x2, host->io_port + PCI_NVRAM);
2066 NVRAM_DELAY();
2067 if (input & 0x8)
2068 value |= 1;
2069 }
2070
2071 outw(0x0, host->io_port + PCI_NVRAM);
2072 NVRAM_DELAY();
2073
2074 return value;
2075}
2076
2077
2078#endif /* USE_NVRAM_DEFAULTS */
2079
2080
2081
2082/*
2083 * currently, this is only called during initialization or abort/reset,
2084 * at which times interrupts are disabled, so polling is OK, I guess...
2085 */
2086static int isp2x00_mbox_command(struct Scsi_Host *host, u_short param[])
2087{
2088 int loop_count;
2089 struct isp2x00_hostdata *hostdata = (struct isp2x00_hostdata *) host->hostdata;
2090
2091 if (mbox_param[param[0]] == 0 || hostdata->adapter_state == AS_FIRMWARE_DEAD)
2092 return 1;
2093
2094 loop_count = DEFAULT_LOOP_COUNT;
2095 while (--loop_count && inw(host->io_port + HOST_HCCR) & 0x0080) {
2096 barrier();
2097 cpu_relax();
2098 }
2099 if (!loop_count) {
2100 printk("qlogicfc%d : mbox_command loop timeout #1\n", hostdata->host_id);
2101 param[0] = 0x4006;
2102 hostdata->adapter_state = AS_FIRMWARE_DEAD;
2103 return 1;
2104 }
2105 hostdata->mbox_done = 0;
2106
2107 if (mbox_param[param[0]] == 0)
2108 printk("qlogicfc%d : invalid mbox command\n", hostdata->host_id);
2109
2110 if (mbox_param[param[0]] & 0x80)
2111 outw(param[7], host->io_port + MBOX7);
2112 if (mbox_param[param[0]] & 0x40)
2113 outw(param[6], host->io_port + MBOX6);
2114 if (mbox_param[param[0]] & 0x20)
2115 outw(param[5], host->io_port + MBOX5);
2116 if (mbox_param[param[0]] & 0x10)
2117 outw(param[4], host->io_port + MBOX4);
2118 if (mbox_param[param[0]] & 0x08)
2119 outw(param[3], host->io_port + MBOX3);
2120 if (mbox_param[param[0]] & 0x04)
2121 outw(param[2], host->io_port + MBOX2);
2122 if (mbox_param[param[0]] & 0x02)
2123 outw(param[1], host->io_port + MBOX1);
2124 if (mbox_param[param[0]] & 0x01)
2125 outw(param[0], host->io_port + MBOX0);
2126
2127
2128 outw(HCCR_SET_HOST_INTR, host->io_port + HOST_HCCR);
2129
2130 while (1) {
2131 loop_count = DEFAULT_LOOP_COUNT;
2132 while (--loop_count && !(inw(host->io_port + PCI_INTER_STS) & 0x08)) {
2133 barrier();
2134 cpu_relax();
2135 }
2136
2137 if (!loop_count) {
2138 hostdata->adapter_state = AS_FIRMWARE_DEAD;
2139 printk("qlogicfc%d : mbox_command loop timeout #2\n", hostdata->host_id);
2140 break;
2141 }
2142 isp2x00_intr_handler(host->irq, host, NULL);
2143
2144 if (hostdata->mbox_done == 1)
2145 break;
2146
2147 }
2148
2149 loop_count = DEFAULT_LOOP_COUNT;
2150 while (--loop_count && inw(host->io_port + MBOX0) == 0x04) {
2151 barrier();
2152 cpu_relax();
2153 }
2154 if (!loop_count)
2155 printk("qlogicfc%d : mbox_command loop timeout #3\n", hostdata->host_id);
2156
2157 param[7] = inw(host->io_port + MBOX7);
2158 param[6] = inw(host->io_port + MBOX6);
2159 param[5] = inw(host->io_port + MBOX5);
2160 param[4] = inw(host->io_port + MBOX4);
2161 param[3] = inw(host->io_port + MBOX3);
2162 param[2] = inw(host->io_port + MBOX2);
2163 param[1] = inw(host->io_port + MBOX1);
2164 param[0] = inw(host->io_port + MBOX0);
2165
2166
2167 outw(0x0, host->io_port + PCI_SEMAPHORE);
2168
2169 if (inw(host->io_port + HOST_HCCR) & 0x0080) {
2170 hostdata->adapter_state = AS_FIRMWARE_DEAD;
2171 printk("qlogicfc%d : mbox op is still pending\n", hostdata->host_id);
2172 }
2173 return 0;
2174}
2175
2176#if DEBUG_ISP2x00_INTR
2177
2178void isp2x00_print_status_entry(struct Status_Entry *status)
2179{
2180 printk("qlogicfc : entry count = 0x%02x, type = 0x%02x, flags = 0x%02x\n",
2181 status->hdr.entry_cnt, status->hdr.entry_type, status->hdr.flags);
2182 printk("qlogicfc : scsi status = 0x%04x, completion status = 0x%04x\n",
2183 le16_to_cpu(status->scsi_status), le16_to_cpu(status->completion_status));
2184 printk("qlogicfc : state flags = 0x%04x, status flags = 0x%04x\n",
2185 le16_to_cpu(status->state_flags), le16_to_cpu(status->status_flags));
2186 printk("qlogicfc : response info length = 0x%04x, request sense length = 0x%04x\n",
2187 le16_to_cpu(status->res_info_len), le16_to_cpu(status->req_sense_len));
2188 printk("qlogicfc : residual transfer length = 0x%08x, response = 0x%02x\n", le32_to_cpu(status->residual), status->res_info[3]);
2189
2190}
2191
2192#endif /* DEBUG_ISP2x00_INTR */
2193
2194
2195#if DEBUG_ISP2x00
2196
2197void isp2x00_print_scsi_cmd(Scsi_Cmnd * cmd)
2198{
2199 int i;
2200
2201 printk("qlogicfc : target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
2202 cmd->target, cmd->lun, cmd->cmd_len);
2203 printk("qlogicfc : command = ");
2204 for (i = 0; i < cmd->cmd_len; i++)
2205 printk("0x%02x ", cmd->cmnd[i]);
2206 printk("\n");
2207}
2208
2209#endif /* DEBUG_ISP2x00 */
2210
2211MODULE_LICENSE("GPL");
2212
d0be4a7d 2213static struct scsi_host_template driver_template = {
1da177e4
LT		 2214 .detect = isp2x00_detect,
2215 .release = isp2x00_release,
2216 .info = isp2x00_info,
2217 .queuecommand = isp2x00_queuecommand,
2218 .eh_abort_handler = isp2x00_abort,
2219 .bios_param = isp2x00_biosparam,
2220 .can_queue = QLOGICFC_REQ_QUEUE_LEN,
2221 .this_id = -1,
2222 .sg_tablesize = QLOGICFC_MAX_SG(QLOGICFC_REQ_QUEUE_LEN),
2223 .cmd_per_lun = QLOGICFC_CMD_PER_LUN,
2224 .use_clustering = ENABLE_CLUSTERING,
2225};
2226#include "scsi_module.c"
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