2 * QLogic ISP2x00 SCSI-FCP
3 * Written by Erik H. Moe, ehm@cris.com
4 * Copyright 1995, Erik H. Moe
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
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.
17 /* Renamed and updated to 1.3.x by Michael Griffith <grif@cs.ucr.edu> */
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
22 * Big endian support and dynamic DMA mapping added
23 * by Jakub Jelinek <jakub@redhat.com>.
25 * Conversion to final pci64 DMA interfaces
26 * by David S. Miller <davem@redhat.com>.
30 * $Date: 1995/09/22 02:23:15 $
34 * Revision 0.5 1995/09/22 02:23:15 root
35 * do auto request sense
37 * Revision 0.4 1995/08/07 04:44:33 root
38 * supply firmware with driver.
39 * numerous bug fixes/general cleanup of code.
41 * Revision 0.3 1995/07/16 16:15:39 root
42 * added reset/abort code.
44 * Revision 0.2 1995/06/29 03:14:19 root
46 * added queue protocol.
48 * Revision 0.1 1995/06/25 01:55:45 root
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>
67 #include <scsi/scsi_host.h>
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)))
76 /* Configuration section **************************************************** */
78 /* Set the following macro to 1 to reload the ISP2x00's firmware. This is
79 version 1.17.30 of the isp2100's firmware and version 2.00.40 of the
83 #define USE_NVRAM_DEFAULTS 1
85 #define ISP2x00_PORTDB 1
87 /* Set the following to 1 to include fabric support, fabric support is
88 * currently not as well tested as the other aspects of the driver */
90 #define ISP2x00_FABRIC 1
92 /* Macros used for debugging */
93 #define DEBUG_ISP2x00 0
94 #define DEBUG_ISP2x00_INT 0
95 #define DEBUG_ISP2x00_INTR 0
96 #define DEBUG_ISP2x00_SETUP 0
97 #define DEBUG_ISP2x00_FABRIC 0
101 #define DEFAULT_LOOP_COUNT 1000000000
103 #define ISP_TIMEOUT (2*HZ)
104 /* End Configuration section ************************************************ */
106 #include <linux/module.h>
110 #define TRACE_BUF_LEN (32*1024)
119 } buf[TRACE_BUF_LEN];
122 #define TRACE(w, i, a) \
124 unsigned long flags; \
128 trace.buf[trace.next].name = (w); \
129 trace.buf[trace.next].time = jiffies; \
130 trace.buf[trace.next].index = (i); \
131 trace.buf[trace.next].addr = (long) (a); \
132 trace.next = (trace.next + 1) & (TRACE_BUF_LEN - 1); \
133 restore_flags(flags); \
137 #define TRACE(w, i, a)
140 #if DEBUG_ISP2x00_FABRIC
141 #define DEBUG_FABRIC(x) x
143 #define DEBUG_FABRIC(x)
144 #endif /* DEBUG_ISP2x00_FABRIC */
148 #define ENTER(x) printk("isp2x00 : entering %s()\n", x);
149 #define LEAVE(x) printk("isp2x00 : leaving %s()\n", x);
155 #endif /* DEBUG_ISP2x00 */
157 #if DEBUG_ISP2x00_INTR
158 #define ENTER_INTR(x) printk("isp2x00 : entering %s()\n", x);
159 #define LEAVE_INTR(x) printk("isp2x00 : leaving %s()\n", x);
160 #define DEBUG_INTR(x) x
162 #define ENTER_INTR(x)
163 #define LEAVE_INTR(x)
164 #define DEBUG_INTR(x)
165 #endif /* DEBUG ISP2x00_INTR */
168 #define ISP2100_REV_ID1 1
169 #define ISP2100_REV_ID3 3
170 #define ISP2200_REV_ID5 5
172 /* host configuration and control registers */
173 #define HOST_HCCR 0xc0 /* host command and control */
175 /* pci bus interface registers */
176 #define FLASH_BIOS_ADDR 0x00
177 #define FLASH_BIOS_DATA 0x02
178 #define ISP_CTRL_STATUS 0x06 /* configuration register #1 */
179 #define PCI_INTER_CTL 0x08 /* pci interrupt control */
180 #define PCI_INTER_STS 0x0a /* pci interrupt status */
181 #define PCI_SEMAPHORE 0x0c /* pci semaphore */
182 #define PCI_NVRAM 0x0e /* pci nvram interface */
184 /* mailbox registers */
185 #define MBOX0 0x10 /* mailbox 0 */
186 #define MBOX1 0x12 /* mailbox 1 */
187 #define MBOX2 0x14 /* mailbox 2 */
188 #define MBOX3 0x16 /* mailbox 3 */
189 #define MBOX4 0x18 /* mailbox 4 */
190 #define MBOX5 0x1a /* mailbox 5 */
191 #define MBOX6 0x1c /* mailbox 6 */
192 #define MBOX7 0x1e /* mailbox 7 */
194 /* mailbox command complete status codes */
195 #define MBOX_COMMAND_COMPLETE 0x4000
196 #define INVALID_COMMAND 0x4001
197 #define HOST_INTERFACE_ERROR 0x4002
198 #define TEST_FAILED 0x4003
199 #define COMMAND_ERROR 0x4005
200 #define COMMAND_PARAM_ERROR 0x4006
201 #define PORT_ID_USED 0x4007
202 #define LOOP_ID_USED 0x4008
203 #define ALL_IDS_USED 0x4009
205 /* async event status codes */
206 #define RESET_DETECTED 0x8001
207 #define SYSTEM_ERROR 0x8002
208 #define REQUEST_TRANSFER_ERROR 0x8003
209 #define RESPONSE_TRANSFER_ERROR 0x8004
210 #define REQUEST_QUEUE_WAKEUP 0x8005
211 #define LIP_OCCURRED 0x8010
212 #define LOOP_UP 0x8011
213 #define LOOP_DOWN 0x8012
214 #define LIP_RECEIVED 0x8013
215 #define PORT_DB_CHANGED 0x8014
216 #define CHANGE_NOTIFICATION 0x8015
217 #define SCSI_COMMAND_COMPLETE 0x8020
218 #define POINT_TO_POINT_UP 0x8030
219 #define CONNECTION_MODE 0x8036
221 struct Entry_header {
228 /* entry header type commands */
229 #define ENTRY_COMMAND 0x19
230 #define ENTRY_CONTINUATION 0x0a
232 #define ENTRY_STATUS 0x03
233 #define ENTRY_MARKER 0x04
236 /* entry header flag definitions */
238 #define EFLAG_BAD_HEADER 4
239 #define EFLAG_BAD_PAYLOAD 8
247 struct Command_Entry {
248 struct Entry_header hdr;
252 u_short expanded_lun;
253 u_short control_flags;
258 u_int total_byte_cnt;
259 struct dataseg dataseg[DATASEGS_PER_COMMAND];
262 /* command entry control flag definitions */
263 #define CFLAG_NODISC 0x01
264 #define CFLAG_HEAD_TAG 0x02
265 #define CFLAG_ORDERED_TAG 0x04
266 #define CFLAG_SIMPLE_TAG 0x08
267 #define CFLAG_TAR_RTN 0x10
268 #define CFLAG_READ 0x20
269 #define CFLAG_WRITE 0x40
271 struct Continuation_Entry {
272 struct Entry_header hdr;
273 struct dataseg dataseg[DATASEGS_PER_CONT];
276 struct Marker_Entry {
277 struct Entry_header hdr;
286 /* marker entry modifier definitions */
287 #define SYNC_DEVICE 0
288 #define SYNC_TARGET 1
291 struct Status_Entry {
292 struct Entry_header hdr;
295 u_short completion_status;
297 u_short status_flags;
298 u_short res_info_len;
299 u_short req_sense_len;
302 u_char req_sense_data[32];
305 /* status entry completion status definitions */
306 #define CS_COMPLETE 0x0000
307 #define CS_DMA_ERROR 0x0002
308 #define CS_RESET_OCCURRED 0x0004
309 #define CS_ABORTED 0x0005
310 #define CS_TIMEOUT 0x0006
311 #define CS_DATA_OVERRUN 0x0007
312 #define CS_DATA_UNDERRUN 0x0015
313 #define CS_QUEUE_FULL 0x001c
314 #define CS_PORT_UNAVAILABLE 0x0028
315 #define CS_PORT_LOGGED_OUT 0x0029
316 #define CS_PORT_CONFIG_CHANGED 0x002a
318 /* status entry state flag definitions */
319 #define SF_SENT_CDB 0x0400
320 #define SF_TRANSFERRED_DATA 0x0800
321 #define SF_GOT_STATUS 0x1000
323 /* status entry status flag definitions */
324 #define STF_BUS_RESET 0x0008
325 #define STF_DEVICE_RESET 0x0010
326 #define STF_ABORTED 0x0020
327 #define STF_TIMEOUT 0x0040
329 /* interrupt control commands */
330 #define ISP_EN_INT 0x8000
331 #define ISP_EN_RISC 0x0008
333 /* host control commands */
334 #define HCCR_NOP 0x0000
335 #define HCCR_RESET 0x1000
336 #define HCCR_PAUSE 0x2000
337 #define HCCR_RELEASE 0x3000
338 #define HCCR_SINGLE_STEP 0x4000
339 #define HCCR_SET_HOST_INTR 0x5000
340 #define HCCR_CLEAR_HOST_INTR 0x6000
341 #define HCCR_CLEAR_RISC_INTR 0x7000
342 #define HCCR_BP_ENABLE 0x8000
343 #define HCCR_BIOS_DISABLE 0x9000
344 #define HCCR_TEST_MODE 0xf000
346 #define RISC_BUSY 0x0004
348 /* mailbox commands */
349 #define MBOX_NO_OP 0x0000
350 #define MBOX_LOAD_RAM 0x0001
351 #define MBOX_EXEC_FIRMWARE 0x0002
352 #define MBOX_DUMP_RAM 0x0003
353 #define MBOX_WRITE_RAM_WORD 0x0004
354 #define MBOX_READ_RAM_WORD 0x0005
355 #define MBOX_MAILBOX_REG_TEST 0x0006
356 #define MBOX_VERIFY_CHECKSUM 0x0007
357 #define MBOX_ABOUT_FIRMWARE 0x0008
358 #define MBOX_LOAD_RISC_RAM 0x0009
359 #define MBOX_DUMP_RISC_RAM 0x000a
360 #define MBOX_CHECK_FIRMWARE 0x000e
361 #define MBOX_INIT_REQ_QUEUE 0x0010
362 #define MBOX_INIT_RES_QUEUE 0x0011
363 #define MBOX_EXECUTE_IOCB 0x0012
364 #define MBOX_WAKE_UP 0x0013
365 #define MBOX_STOP_FIRMWARE 0x0014
366 #define MBOX_ABORT_IOCB 0x0015
367 #define MBOX_ABORT_DEVICE 0x0016
368 #define MBOX_ABORT_TARGET 0x0017
369 #define MBOX_BUS_RESET 0x0018
370 #define MBOX_STOP_QUEUE 0x0019
371 #define MBOX_START_QUEUE 0x001a
372 #define MBOX_SINGLE_STEP_QUEUE 0x001b
373 #define MBOX_ABORT_QUEUE 0x001c
374 #define MBOX_GET_DEV_QUEUE_STATUS 0x001d
375 #define MBOX_GET_FIRMWARE_STATUS 0x001f
376 #define MBOX_GET_INIT_SCSI_ID 0x0020
377 #define MBOX_GET_RETRY_COUNT 0x0022
378 #define MBOX_GET_TARGET_PARAMS 0x0028
379 #define MBOX_GET_DEV_QUEUE_PARAMS 0x0029
380 #define MBOX_SET_RETRY_COUNT 0x0032
381 #define MBOX_SET_TARGET_PARAMS 0x0038
382 #define MBOX_SET_DEV_QUEUE_PARAMS 0x0039
383 #define MBOX_EXECUTE_IOCB64 0x0054
384 #define MBOX_INIT_FIRMWARE 0x0060
385 #define MBOX_GET_INIT_CB 0x0061
386 #define MBOX_INIT_LIP 0x0062
387 #define MBOX_GET_POS_MAP 0x0063
388 #define MBOX_GET_PORT_DB 0x0064
389 #define MBOX_CLEAR_ACA 0x0065
390 #define MBOX_TARGET_RESET 0x0066
391 #define MBOX_CLEAR_TASK_SET 0x0067
392 #define MBOX_ABORT_TASK_SET 0x0068
393 #define MBOX_GET_FIRMWARE_STATE 0x0069
394 #define MBOX_GET_PORT_NAME 0x006a
395 #define MBOX_SEND_SNS 0x006e
396 #define MBOX_PORT_LOGIN 0x006f
397 #define MBOX_SEND_CHANGE_REQUEST 0x0070
398 #define MBOX_PORT_LOGOUT 0x0071
401 * Firmware if needed (note this is a hack, it belongs in a separate
405 #ifdef CONFIG_SCSI_QLOGIC_FC_FIRMWARE
406 #include "qlogicfc_asm.c"
408 static unsigned short risc_code_addr01 = 0x1000 ;
411 /* Each element in mbox_param is an 8 bit bitmap where each bit indicates
412 if that mbox should be copied as input. For example 0x2 would mean
415 static const u_char mbox_param[] =
417 0x01, /* MBOX_NO_OP */
418 0x1f, /* MBOX_LOAD_RAM */
419 0x03, /* MBOX_EXEC_FIRMWARE */
420 0x1f, /* MBOX_DUMP_RAM */
421 0x07, /* MBOX_WRITE_RAM_WORD */
422 0x03, /* MBOX_READ_RAM_WORD */
423 0xff, /* MBOX_MAILBOX_REG_TEST */
424 0x03, /* MBOX_VERIFY_CHECKSUM */
425 0x01, /* MBOX_ABOUT_FIRMWARE */
426 0xff, /* MBOX_LOAD_RISC_RAM */
427 0xff, /* MBOX_DUMP_RISC_RAM */
431 0x01, /* MBOX_CHECK_FIRMWARE */
433 0x1f, /* MBOX_INIT_REQ_QUEUE */
434 0x2f, /* MBOX_INIT_RES_QUEUE */
435 0x0f, /* MBOX_EXECUTE_IOCB */
436 0x03, /* MBOX_WAKE_UP */
437 0x01, /* MBOX_STOP_FIRMWARE */
438 0x0f, /* MBOX_ABORT_IOCB */
439 0x03, /* MBOX_ABORT_DEVICE */
440 0x07, /* MBOX_ABORT_TARGET */
441 0x03, /* MBOX_BUS_RESET */
442 0x03, /* MBOX_STOP_QUEUE */
443 0x03, /* MBOX_START_QUEUE */
444 0x03, /* MBOX_SINGLE_STEP_QUEUE */
445 0x03, /* MBOX_ABORT_QUEUE */
446 0x03, /* MBOX_GET_DEV_QUEUE_STATUS */
448 0x01, /* MBOX_GET_FIRMWARE_STATUS */
449 0x01, /* MBOX_GET_INIT_SCSI_ID */
451 0x01, /* MBOX_GET_RETRY_COUNT */
457 0x03, /* MBOX_GET_TARGET_PARAMS */
458 0x03, /* MBOX_GET_DEV_QUEUE_PARAMS */
467 0x07, /* MBOX_SET_RETRY_COUNT */
473 0x0f, /* MBOX_SET_TARGET_PARAMS */
474 0x0f, /* MBOX_SET_DEV_QUEUE_PARAMS */
501 0xcf, /* MBOX_EXECUTE_IOCB64 */
513 0xff, /* MBOX_INIT_FIRMWARE */
514 0xcd, /* MBOX_GET_INIT_CB */
515 0x01, /* MBOX_INIT_LIP */
516 0xcd, /* MBOX_GET_POS_MAP */
517 0xcf, /* MBOX_GET_PORT_DB */
518 0x03, /* MBOX_CLEAR_ACA */
519 0x03, /* MBOX_TARGET_RESET */
520 0x03, /* MBOX_CLEAR_TASK_SET */
521 0x03, /* MBOX_ABORT_TASK_SET */
522 0x01, /* MBOX_GET_FIRMWARE_STATE */
523 0x03, /* MBOX_GET_PORT_NAME */
527 0xcf, /* MBOX_SEND_SNS */
528 0x0f, /* MBOX_PORT_LOGIN */
529 0x03, /* MBOX_SEND_CHANGE_REQUEST */
530 0x03, /* MBOX_PORT_LOGOUT */
533 #define MAX_MBOX_COMMAND (sizeof(mbox_param)/sizeof(u_short))
551 /* address of instance of this struct is passed to adapter to initialize things
557 u_short max_frame_len;
559 u_short exec_throttle;
562 u_short node_name[4];
564 u_char reserved2[10];
565 u_short req_queue_out;
566 u_short res_queue_in;
567 u_short req_queue_len;
568 u_short res_queue_len;
569 u_int req_queue_addr_lo;
570 u_int req_queue_addr_high;
571 u_int res_queue_addr_lo;
572 u_int res_queue_addr_high;
573 /* the rest of this structure only applies to the isp2200 */
575 u_char cmd_resource_cnt;
576 u_char notify_resource_cnt;
579 u_short add_firm_opts;
580 u_char res_accum_timer;
581 u_char irq_delay_timer;
582 u_short special_options;
583 u_short reserved4[13];
587 * The result queue can be quite a bit smaller since continuation entries
588 * do not show up there:
590 #define RES_QUEUE_LEN ((QLOGICFC_REQ_QUEUE_LEN + 1) / 8 - 1)
591 #define QUEUE_ENTRY_LEN 64
594 #define QLOGICFC_MAX_ID 0xff
596 #define QLOGICFC_MAX_ID 0x7d
599 #define QLOGICFC_MAX_LUN 128
600 #define QLOGICFC_MAX_LOOP_ID 0x7d
602 /* the following connection options only apply to the 2200. i have only
603 * had success with LOOP_ONLY and P2P_ONLY.
608 #define LOOP_PREFERED 2
609 #define P2P_PREFERED 3
611 #define CONNECTION_PREFERENCE LOOP_ONLY
613 /* adapter_state values */
614 #define AS_FIRMWARE_DEAD -1
615 #define AS_LOOP_DOWN 0
616 #define AS_LOOP_GOOD 1
617 #define AS_REDO_FABRIC_PORTDB 2
618 #define AS_REDO_LOOP_PORTDB 4
620 #define RES_SIZE ((RES_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN)
621 #define REQ_SIZE ((QLOGICFC_REQ_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN)
623 struct isp2x00_hostdata {
625 struct pci_dev *pci_dev;
626 /* result and request queues (shared with isp2x00): */
627 u_int req_in_ptr; /* index of next request slot */
628 u_int res_out_ptr; /* index of next result slot */
630 /* this is here so the queues are nicely aligned */
631 long send_marker; /* do we need to send a marker? */
635 struct init_cb control_block;
637 unsigned long int tag_ages[QLOGICFC_MAX_ID + 1];
638 Scsi_Cmnd *handle_ptrs[QLOGICFC_REQ_QUEUE_LEN + 1];
639 unsigned long handle_serials[QLOGICFC_REQ_QUEUE_LEN + 1];
640 struct id_name_map port_db[QLOGICFC_MAX_ID + 1];
646 struct timer_list explore_timer;
647 struct id_name_map tempmap[QLOGICFC_MAX_ID + 1];
651 /* queue length's _must_ be power of two: */
652 #define QUEUE_DEPTH(in, out, ql) ((in - out) & (ql))
653 #define REQ_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, \
654 QLOGICFC_REQ_QUEUE_LEN)
655 #define RES_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, RES_QUEUE_LEN)
657 static void isp2x00_enable_irqs(struct Scsi_Host *);
658 static void isp2x00_disable_irqs(struct Scsi_Host *);
659 static int isp2x00_init(struct Scsi_Host *);
660 static int isp2x00_reset_hardware(struct Scsi_Host *);
661 static int isp2x00_mbox_command(struct Scsi_Host *, u_short[]);
662 static int isp2x00_return_status(Scsi_Cmnd *, struct Status_Entry *);
663 static void isp2x00_intr_handler(int, void *, struct pt_regs *);
664 static irqreturn_t do_isp2x00_intr_handler(int, void *, struct pt_regs *);
665 static int isp2x00_make_portdb(struct Scsi_Host *);
668 static int isp2x00_init_fabric(struct Scsi_Host *, struct id_name_map *, int);
671 #if USE_NVRAM_DEFAULTS
672 static int isp2x00_get_nvram_defaults(struct Scsi_Host *, struct init_cb *);
673 static u_short isp2x00_read_nvram_word(struct Scsi_Host *, u_short);
677 static void isp2x00_print_scsi_cmd(Scsi_Cmnd *);
680 #if DEBUG_ISP2x00_INTR
681 static void isp2x00_print_status_entry(struct Status_Entry *);
684 static inline void isp2x00_enable_irqs(struct Scsi_Host *host)
686 outw(ISP_EN_INT | ISP_EN_RISC, host->io_port + PCI_INTER_CTL);
690 static inline void isp2x00_disable_irqs(struct Scsi_Host *host)
692 outw(0x0, host->io_port + PCI_INTER_CTL);
696 int isp2x00_detect(Scsi_Host_Template * tmpt)
699 unsigned long wait_time;
700 struct Scsi_Host *host = NULL;
701 struct isp2x00_hostdata *hostdata;
702 struct pci_dev *pdev;
703 unsigned short device_ids[2];
708 ENTER("isp2x00_detect");
710 device_ids[0] = PCI_DEVICE_ID_QLOGIC_ISP2100;
711 device_ids[1] = PCI_DEVICE_ID_QLOGIC_ISP2200;
713 tmpt->proc_name = "isp2x00";
717 while ((pdev = pci_find_device(PCI_VENDOR_ID_QLOGIC, device_ids[i], pdev))) {
718 if (pci_enable_device(pdev))
721 /* Try to configure DMA attributes. */
722 if (pci_set_dma_mask(pdev, 0xffffffffffffffffULL) &&
723 pci_set_dma_mask(pdev, 0xffffffffULL))
726 host = scsi_register(tmpt, sizeof(struct isp2x00_hostdata));
728 printk("qlogicfc%d : could not register host.\n", hosts);
731 scsi_set_device(host, &pdev->dev);
732 host->max_id = QLOGICFC_MAX_ID + 1;
733 host->max_lun = QLOGICFC_MAX_LUN;
734 hostdata = (struct isp2x00_hostdata *) host->hostdata;
736 memset(hostdata, 0, sizeof(struct isp2x00_hostdata));
737 hostdata->pci_dev = pdev;
738 hostdata->res = pci_alloc_consistent(pdev, RES_SIZE + REQ_SIZE, &busaddr);
741 printk("qlogicfc%d : could not allocate memory for request and response queue.\n", hosts);
742 scsi_unregister(host);
745 hostdata->req = hostdata->res + (RES_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN;
746 hostdata->queued = 0;
747 /* set up the control block */
748 hostdata->control_block.version = 0x1;
749 hostdata->control_block.firm_opts = cpu_to_le16(0x800e);
750 hostdata->control_block.max_frame_len = cpu_to_le16(2048);
751 hostdata->control_block.max_iocb = cpu_to_le16(QLOGICFC_REQ_QUEUE_LEN);
752 hostdata->control_block.exec_throttle = cpu_to_le16(QLOGICFC_CMD_PER_LUN);
753 hostdata->control_block.retry_delay = 5;
754 hostdata->control_block.retry_cnt = 1;
755 hostdata->control_block.node_name[0] = cpu_to_le16(0x0020);
756 hostdata->control_block.node_name[1] = cpu_to_le16(0xE000);
757 hostdata->control_block.node_name[2] = cpu_to_le16(0x008B);
758 hostdata->control_block.node_name[3] = cpu_to_le16(0x0000);
759 hostdata->control_block.hard_addr = cpu_to_le16(0x0003);
760 hostdata->control_block.req_queue_len = cpu_to_le16(QLOGICFC_REQ_QUEUE_LEN + 1);
761 hostdata->control_block.res_queue_len = cpu_to_le16(RES_QUEUE_LEN + 1);
762 hostdata->control_block.res_queue_addr_lo = cpu_to_le32(pci64_dma_lo32(busaddr));
763 hostdata->control_block.res_queue_addr_high = cpu_to_le32(pci64_dma_hi32(busaddr));
764 hostdata->control_block.req_queue_addr_lo = cpu_to_le32(pci64_dma_lo32(busaddr + RES_SIZE));
765 hostdata->control_block.req_queue_addr_high = cpu_to_le32(pci64_dma_hi32(busaddr + RES_SIZE));
768 hostdata->control_block.add_firm_opts |= cpu_to_le16(CONNECTION_PREFERENCE<<4);
769 hostdata->adapter_state = AS_LOOP_DOWN;
770 hostdata->explore_timer.data = 1;
771 hostdata->host_id = hosts;
773 if (isp2x00_init(host) || isp2x00_reset_hardware(host)) {
774 pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
775 scsi_unregister(host);
780 if (request_irq(host->irq, do_isp2x00_intr_handler, SA_INTERRUPT | SA_SHIRQ, "qlogicfc", host)) {
781 printk("qlogicfc%d : interrupt %d already in use\n",
782 hostdata->host_id, host->irq);
783 pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
784 scsi_unregister(host);
787 if (!request_region(host->io_port, 0xff, "qlogicfc")) {
788 printk("qlogicfc%d : i/o region 0x%lx-0x%lx already "
790 hostdata->host_id, host->io_port, host->io_port + 0xff);
791 free_irq(host->irq, host);
792 pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
793 scsi_unregister(host);
797 outw(0x0, host->io_port + PCI_SEMAPHORE);
798 outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
799 isp2x00_enable_irqs(host);
800 /* wait for the loop to come up */
801 for (wait_time = jiffies + 10 * HZ; time_before(jiffies, wait_time) && hostdata->adapter_state == AS_LOOP_DOWN;) {
805 if (hostdata->adapter_state == AS_LOOP_DOWN) {
806 printk("qlogicfc%d : link is not up\n", hostdata->host_id);
809 hostdata->explore_timer.data = 0;
814 /* this busy loop should not be needed but the isp2x00 seems to need
815 some time before recognizing it is attached to a fabric */
818 for (wait_time = jiffies + 5 * HZ; time_before(jiffies, wait_time);) {
824 LEAVE("isp2x00_detect");
830 static int isp2x00_make_portdb(struct Scsi_Host *host)
835 struct isp2x00_hostdata *hostdata;
837 isp2x00_disable_irqs(host);
839 hostdata = (struct isp2x00_hostdata *) host->hostdata;
840 memset(hostdata->tempmap, 0, sizeof(hostdata->tempmap));
843 for (i = 0x81; i < QLOGICFC_MAX_ID; i++) {
844 param[0] = MBOX_PORT_LOGOUT;
849 isp2x00_mbox_command(host, param);
851 if (param[0] != MBOX_COMMAND_COMPLETE) {
853 DEBUG_FABRIC(printk("qlogicfc%d : logout failed %x %x\n", hostdata->host_id, i, param[0]));
859 param[0] = MBOX_GET_INIT_SCSI_ID;
861 isp2x00_mbox_command(host, param);
863 if (param[0] == MBOX_COMMAND_COMPLETE) {
864 hostdata->port_id = ((u_int) param[3]) << 16;
865 hostdata->port_id |= param[2];
866 hostdata->tempmap[0].loop_id = param[1];
867 hostdata->tempmap[0].wwn = hostdata->wwn;
870 printk("qlogicfc%d : error getting scsi id.\n", hostdata->host_id);
873 for (i = 0; i <=QLOGICFC_MAX_ID; i++)
874 hostdata->tempmap[i].loop_id = hostdata->tempmap[0].loop_id;
876 for (i = 0, j = 1; i <= QLOGICFC_MAX_LOOP_ID; i++) {
877 param[0] = MBOX_GET_PORT_NAME;
878 param[1] = (i << 8) & 0xff00;
880 isp2x00_mbox_command(host, param);
882 if (param[0] == MBOX_COMMAND_COMPLETE) {
883 hostdata->tempmap[j].loop_id = i;
884 hostdata->tempmap[j].wwn = ((u64) (param[2] & 0xff)) << 56;
885 hostdata->tempmap[j].wwn |= ((u64) ((param[2] >> 8) & 0xff)) << 48;
886 hostdata->tempmap[j].wwn |= ((u64) (param[3] & 0xff)) << 40;
887 hostdata->tempmap[j].wwn |= ((u64) ((param[3] >> 8) & 0xff)) << 32;
888 hostdata->tempmap[j].wwn |= ((u64) (param[6] & 0xff)) << 24;
889 hostdata->tempmap[j].wwn |= ((u64) ((param[6] >> 8) & 0xff)) << 16;
890 hostdata->tempmap[j].wwn |= ((u64) (param[7] & 0xff)) << 8;
891 hostdata->tempmap[j].wwn |= ((u64) ((param[7] >> 8) & 0xff));
900 isp2x00_init_fabric(host, hostdata->tempmap, j);
903 for (i = 0; i <= QLOGICFC_MAX_ID; i++) {
904 if (hostdata->tempmap[i].wwn != hostdata->port_db[i].wwn) {
905 for (j = 0; j <= QLOGICFC_MAX_ID; j++) {
906 if (hostdata->tempmap[j].wwn == hostdata->port_db[i].wwn) {
907 hostdata->port_db[i].loop_id = hostdata->tempmap[j].loop_id;
911 if (j == QLOGICFC_MAX_ID + 1)
912 hostdata->port_db[i].loop_id = hostdata->tempmap[0].loop_id;
914 for (j = 0; j <= QLOGICFC_MAX_ID; j++) {
915 if (hostdata->port_db[j].wwn == hostdata->tempmap[i].wwn || !hostdata->port_db[j].wwn) {
919 if (j == QLOGICFC_MAX_ID + 1)
920 printk("qlogicfc%d : Too many scsi devices, no more room in port map.\n", hostdata->host_id);
921 if (!hostdata->port_db[j].wwn) {
922 hostdata->port_db[j].loop_id = hostdata->tempmap[i].loop_id;
923 hostdata->port_db[j].wwn = hostdata->tempmap[i].wwn;
926 hostdata->port_db[i].loop_id = hostdata->tempmap[i].loop_id;
930 isp2x00_enable_irqs(host);
938 #define FABRIC_PORT 0x7e
939 #define FABRIC_CONTROLLER 0x7f
940 #define FABRIC_SNS 0x80
942 int isp2x00_init_fabric(struct Scsi_Host *host, struct id_name_map *port_db, int cur_scsi_id)
948 u_short loop_id = 0x81;
949 u_short scsi_id = cur_scsi_id;
952 u_char *sns_response;
954 struct isp2x00_hostdata *hostdata;
956 hostdata = (struct isp2x00_hostdata *) host->hostdata;
958 DEBUG_FABRIC(printk("qlogicfc%d : Checking for a fabric.\n", hostdata->host_id));
959 param[0] = MBOX_GET_PORT_NAME;
960 param[1] = (u16)FABRIC_PORT << 8;
962 isp2x00_mbox_command(host, param);
964 if (param[0] != MBOX_COMMAND_COMPLETE) {
965 DEBUG_FABRIC(printk("qlogicfc%d : fabric check result %x\n", hostdata->host_id, param[0]));
968 printk("qlogicfc%d : Fabric found.\n", hostdata->host_id);
970 req = (struct sns_cb *)pci_alloc_consistent(hostdata->pci_dev, sizeof(*req) + 608, &busaddr);
973 printk("qlogicfc%d : Could not allocate DMA resources for fabric initialization\n", hostdata->host_id);
976 sns_response = (u_char *)(req + 1);
978 if (hostdata->adapter_state & AS_REDO_LOOP_PORTDB){
979 memset(req, 0, sizeof(*req));
981 req->len = cpu_to_le16(8);
982 req->response_low = cpu_to_le32(pci64_dma_lo32(busaddr + sizeof(*req)));
983 req->response_high = cpu_to_le32(pci64_dma_hi32(busaddr + sizeof(*req)));
984 req->sub_len = cpu_to_le16(22);
987 req->data[8] = (u_char) (hostdata->port_id & 0xff);
988 req->data[9] = (u_char) (hostdata->port_id >> 8 & 0xff);
989 req->data[10] = (u_char) (hostdata->port_id >> 16 & 0xff);
990 req->data[13] = 0x01;
991 param[0] = MBOX_SEND_SNS;
993 param[2] = pci64_dma_lo32(busaddr) >> 16;
994 param[3] = pci64_dma_lo32(busaddr);
995 param[6] = pci64_dma_hi32(busaddr) >> 16;
996 param[7] = pci64_dma_hi32(busaddr);
998 isp2x00_mbox_command(host, param);
1000 if (param[0] != MBOX_COMMAND_COMPLETE)
1001 printk("qlogicfc%d : error sending RFC-4\n", hostdata->host_id);
1004 port_id = hostdata->port_id;
1006 memset(req, 0, sizeof(*req));
1008 req->len = cpu_to_le16(304);
1009 req->response_low = cpu_to_le32(pci64_dma_lo32(busaddr + sizeof(*req)));
1010 req->response_high = cpu_to_le32(pci64_dma_hi32(busaddr + sizeof(*req)));
1011 req->sub_len = cpu_to_le16(6);
1012 req->data[0] = 0x00;
1013 req->data[1] = 0x01;
1014 req->data[8] = (u_char) (port_id & 0xff);
1015 req->data[9] = (u_char) (port_id >> 8 & 0xff);
1016 req->data[10] = (u_char) (port_id >> 16 & 0xff);
1018 param[0] = MBOX_SEND_SNS;
1020 param[2] = pci64_dma_lo32(busaddr) >> 16;
1021 param[3] = pci64_dma_lo32(busaddr);
1022 param[6] = pci64_dma_hi32(busaddr) >> 16;
1023 param[7] = pci64_dma_hi32(busaddr);
1025 isp2x00_mbox_command(host, param);
1027 if (param[0] == MBOX_COMMAND_COMPLETE) {
1028 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]));
1029 DEBUG_FABRIC(printk(" port id: %02x%02x%02x\n", sns_response[17], sns_response[18], sns_response[19]));
1030 port_id = ((u_int) sns_response[17]) << 16;
1031 port_id |= ((u_int) sns_response[18]) << 8;
1032 port_id |= ((u_int) sns_response[19]);
1033 wwn = ((u64) sns_response[20]) << 56;
1034 wwn |= ((u64) sns_response[21]) << 48;
1035 wwn |= ((u64) sns_response[22]) << 40;
1036 wwn |= ((u64) sns_response[23]) << 32;
1037 wwn |= ((u64) sns_response[24]) << 24;
1038 wwn |= ((u64) sns_response[25]) << 16;
1039 wwn |= ((u64) sns_response[26]) << 8;
1040 wwn |= ((u64) sns_response[27]);
1041 if (hostdata->port_id >> 8 != port_id >> 8) {
1042 DEBUG_FABRIC(printk("qlogicfc%d : adding a fabric port: %x\n", hostdata->host_id, port_id));
1043 param[0] = MBOX_PORT_LOGIN;
1044 param[1] = loop_id << 8;
1045 param[2] = (u_short) (port_id >> 16);
1046 param[3] = (u_short) (port_id);
1048 isp2x00_mbox_command(host, param);
1050 if (param[0] == MBOX_COMMAND_COMPLETE) {
1051 port_db[scsi_id].wwn = wwn;
1052 port_db[scsi_id].loop_id = loop_id;
1056 printk("qlogicfc%d : Error performing port login %x\n", hostdata->host_id, param[0]);
1057 DEBUG_FABRIC(printk("qlogicfc%d : loop_id: %x\n", hostdata->host_id, loop_id));
1058 param[0] = MBOX_PORT_LOGOUT;
1059 param[1] = loop_id << 8;
1063 isp2x00_mbox_command(host, param);
1068 if (hostdata->port_id == port_id)
1071 printk("qlogicfc%d : Get All Next failed %x.\n", hostdata->host_id, param[0]);
1072 pci_free_consistent(hostdata->pci_dev, sizeof(*req) + 608, req, busaddr);
1077 pci_free_consistent(hostdata->pci_dev, sizeof(*req) + 608, req, busaddr);
1081 #endif /* ISP2x00_FABRIC */
1084 int isp2x00_release(struct Scsi_Host *host)
1086 struct isp2x00_hostdata *hostdata;
1089 ENTER("isp2x00_release");
1091 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1093 outw(0x0, host->io_port + PCI_INTER_CTL);
1094 free_irq(host->irq, host);
1096 release_region(host->io_port, 0xff);
1098 busaddr = pci64_dma_build(le32_to_cpu(hostdata->control_block.res_queue_addr_high),
1099 le32_to_cpu(hostdata->control_block.res_queue_addr_lo));
1100 pci_free_consistent(hostdata->pci_dev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
1102 LEAVE("isp2x00_release");
1108 const char *isp2x00_info(struct Scsi_Host *host)
1110 static char buf[80];
1111 struct isp2x00_hostdata *hostdata;
1112 ENTER("isp2x00_info");
1114 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1116 "QLogic ISP%04x SCSI on PCI bus %02x device %02x irq %d base 0x%lx",
1117 hostdata->pci_dev->device, hostdata->pci_dev->bus->number, hostdata->pci_dev->devfn, host->irq,
1121 LEAVE("isp2x00_info");
1128 * The middle SCSI layer ensures that queuecommand never gets invoked
1129 * concurrently with itself or the interrupt handler (though the
1130 * interrupt handler may call this routine as part of
1131 * request-completion handling).
1133 int isp2x00_queuecommand(Scsi_Cmnd * Cmnd, void (*done) (Scsi_Cmnd *))
1135 int i, sg_count, n, num_free;
1136 u_int in_ptr, out_ptr;
1138 struct scatterlist *sg;
1139 struct Command_Entry *cmd;
1140 struct Continuation_Entry *cont;
1141 struct Scsi_Host *host;
1142 struct isp2x00_hostdata *hostdata;
1144 ENTER("isp2x00_queuecommand");
1146 host = Cmnd->device->host;
1147 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1148 Cmnd->scsi_done = done;
1150 DEBUG(isp2x00_print_scsi_cmd(Cmnd));
1152 if (hostdata->adapter_state & AS_REDO_FABRIC_PORTDB || hostdata->adapter_state & AS_REDO_LOOP_PORTDB) {
1153 isp2x00_make_portdb(host);
1154 hostdata->adapter_state = AS_LOOP_GOOD;
1155 printk("qlogicfc%d : Port Database\n", hostdata->host_id);
1156 for (i = 0; hostdata->port_db[i].wwn != 0; i++) {
1157 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);
1158 if (hostdata->port_db[i].loop_id != hostdata->port_db[0].loop_id || i == 0)
1159 printk("%x", hostdata->port_db[i].loop_id);
1161 printk("Not Available");
1165 if (hostdata->adapter_state == AS_FIRMWARE_DEAD) {
1166 printk("qlogicfc%d : The firmware is dead, just return.\n", hostdata->host_id);
1171 out_ptr = inw(host->io_port + MBOX4);
1172 in_ptr = hostdata->req_in_ptr;
1174 DEBUG(printk("qlogicfc%d : request queue depth %d\n", hostdata->host_id,
1175 REQ_QUEUE_DEPTH(in_ptr, out_ptr)));
1177 cmd = (struct Command_Entry *) &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
1178 in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
1179 if (in_ptr == out_ptr) {
1180 DEBUG(printk("qlogicfc%d : request queue overflow\n", hostdata->host_id));
1183 if (hostdata->send_marker) {
1184 struct Marker_Entry *marker;
1186 TRACE("queue marker", in_ptr, 0);
1188 DEBUG(printk("qlogicfc%d : adding marker entry\n", hostdata->host_id));
1189 marker = (struct Marker_Entry *) cmd;
1190 memset(marker, 0, sizeof(struct Marker_Entry));
1192 marker->hdr.entry_type = ENTRY_MARKER;
1193 marker->hdr.entry_cnt = 1;
1194 marker->modifier = SYNC_ALL;
1196 hostdata->send_marker = 0;
1198 if (((in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN) == out_ptr) {
1199 outw(in_ptr, host->io_port + MBOX4);
1200 hostdata->req_in_ptr = in_ptr;
1201 DEBUG(printk("qlogicfc%d : request queue overflow\n", hostdata->host_id));
1204 cmd = (struct Command_Entry *) &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
1205 in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
1207 TRACE("queue command", in_ptr, Cmnd);
1209 memset(cmd, 0, sizeof(struct Command_Entry));
1211 /* find a free handle mapping slot */
1212 for (i = in_ptr; i != (in_ptr - 1) && hostdata->handle_ptrs[i]; i = ((i + 1) % (QLOGICFC_REQ_QUEUE_LEN + 1)));
1214 if (!hostdata->handle_ptrs[i]) {
1215 cmd->handle = cpu_to_le32(i);
1216 hostdata->handle_ptrs[i] = Cmnd;
1217 hostdata->handle_serials[i] = Cmnd->serial_number;
1219 printk("qlogicfc%d : no handle slots, this should not happen.\n", hostdata->host_id);
1220 printk("hostdata->queued is %x, in_ptr: %x\n", hostdata->queued, in_ptr);
1221 for (i = 0; i <= QLOGICFC_REQ_QUEUE_LEN; i++){
1222 if (!hostdata->handle_ptrs[i]){
1223 printk("slot %d has %p\n", i, hostdata->handle_ptrs[i]);
1229 cmd->hdr.entry_type = ENTRY_COMMAND;
1230 cmd->hdr.entry_cnt = 1;
1231 cmd->target_lun = Cmnd->device->lun;
1232 cmd->expanded_lun = cpu_to_le16(Cmnd->device->lun);
1234 cmd->target_id = hostdata->port_db[Cmnd->device->id].loop_id;
1236 cmd->target_id = Cmnd->target;
1238 cmd->total_byte_cnt = cpu_to_le32(Cmnd->request_bufflen);
1240 memcpy(cmd->cdb, Cmnd->cmnd, Cmnd->cmd_len);
1243 sg = (struct scatterlist *) Cmnd->request_buffer;
1244 sg_count = pci_map_sg(hostdata->pci_dev, sg, Cmnd->use_sg, scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1245 cmd->segment_cnt = cpu_to_le16(sg_count);
1247 /* fill in first two sg entries: */
1249 if (n > DATASEGS_PER_COMMAND)
1250 n = DATASEGS_PER_COMMAND;
1252 for (i = 0; i < n; i++) {
1253 ds[i].d_base = cpu_to_le32(pci64_dma_lo32(sg_dma_address(sg)));
1254 ds[i].d_base_hi = cpu_to_le32(pci64_dma_hi32(sg_dma_address(sg)));
1255 ds[i].d_count = cpu_to_le32(sg_dma_len(sg));
1258 sg_count -= DATASEGS_PER_COMMAND;
1260 while (sg_count > 0) {
1261 ++cmd->hdr.entry_cnt;
1262 cont = (struct Continuation_Entry *)
1263 &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
1264 memset(cont, 0, sizeof(struct Continuation_Entry));
1265 in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
1266 if (in_ptr == out_ptr) {
1267 DEBUG(printk("qlogicfc%d : unexpected request queue overflow\n", hostdata->host_id));
1270 TRACE("queue continuation", in_ptr, 0);
1271 cont->hdr.entry_type = ENTRY_CONTINUATION;
1274 if (n > DATASEGS_PER_CONT)
1275 n = DATASEGS_PER_CONT;
1276 for (i = 0; i < n; ++i) {
1277 ds[i].d_base = cpu_to_le32(pci64_dma_lo32(sg_dma_address(sg)));
1278 ds[i].d_base_hi = cpu_to_le32(pci64_dma_hi32(sg_dma_address(sg)));
1279 ds[i].d_count = cpu_to_le32(sg_dma_len(sg));
1284 } else if (Cmnd->request_bufflen && Cmnd->sc_data_direction != PCI_DMA_NONE) {
1285 struct page *page = virt_to_page(Cmnd->request_buffer);
1286 unsigned long offset = offset_in_page(Cmnd->request_buffer);
1287 dma_addr_t busaddr = pci_map_page(hostdata->pci_dev,
1289 Cmnd->request_bufflen,
1290 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1291 Cmnd->SCp.dma_handle = busaddr;
1293 cmd->dataseg[0].d_base = cpu_to_le32(pci64_dma_lo32(busaddr));
1294 cmd->dataseg[0].d_base_hi = cpu_to_le32(pci64_dma_hi32(busaddr));
1295 cmd->dataseg[0].d_count = cpu_to_le32(Cmnd->request_bufflen);
1296 cmd->segment_cnt = cpu_to_le16(1);
1298 cmd->dataseg[0].d_base = 0;
1299 cmd->dataseg[0].d_base_hi = 0;
1300 cmd->segment_cnt = cpu_to_le16(1); /* Shouldn't this be 0? */
1303 if (Cmnd->sc_data_direction == SCSI_DATA_WRITE)
1304 cmd->control_flags = cpu_to_le16(CFLAG_WRITE);
1306 cmd->control_flags = cpu_to_le16(CFLAG_READ);
1308 if (Cmnd->device->tagged_supported) {
1309 if ((jiffies - hostdata->tag_ages[Cmnd->device->id]) > (2 * ISP_TIMEOUT)) {
1310 cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG);
1311 hostdata->tag_ages[Cmnd->device->id] = jiffies;
1313 switch (Cmnd->tag) {
1314 case HEAD_OF_QUEUE_TAG:
1315 cmd->control_flags |= cpu_to_le16(CFLAG_HEAD_TAG);
1317 case ORDERED_QUEUE_TAG:
1318 cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG);
1321 cmd->control_flags |= cpu_to_le16(CFLAG_SIMPLE_TAG);
1326 * TEST_UNIT_READY commands from scsi_scan will fail due to "overlapped
1327 * commands attempted" unless we setup at least a simple queue (midlayer
1328 * will embelish this once it can do an INQUIRY command to the device)
1331 cmd->control_flags |= cpu_to_le16(CFLAG_SIMPLE_TAG);
1332 outw(in_ptr, host->io_port + MBOX4);
1333 hostdata->req_in_ptr = in_ptr;
1337 num_free = QLOGICFC_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr);
1338 num_free = (num_free > 2) ? num_free - 2 : 0;
1339 host->can_queue = host->host_busy + num_free;
1340 if (host->can_queue > QLOGICFC_REQ_QUEUE_LEN)
1341 host->can_queue = QLOGICFC_REQ_QUEUE_LEN;
1342 host->sg_tablesize = QLOGICFC_MAX_SG(num_free);
1344 LEAVE("isp2x00_queuecommand");
1350 /* we have received an event, such as a lip or an RSCN, which may mean that
1351 * our port database is incorrect so the port database must be recreated.
1353 static void redo_port_db(unsigned long arg)
1356 struct Scsi_Host * host = (struct Scsi_Host *) arg;
1357 struct isp2x00_hostdata * hostdata;
1358 unsigned long flags;
1361 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1362 hostdata->explore_timer.data = 0;
1363 del_timer(&hostdata->explore_timer);
1365 spin_lock_irqsave(host->host_lock, flags);
1367 if (hostdata->adapter_state & AS_REDO_FABRIC_PORTDB || hostdata->adapter_state & AS_REDO_LOOP_PORTDB) {
1368 isp2x00_make_portdb(host);
1369 printk("qlogicfc%d : Port Database\n", hostdata->host_id);
1370 for (i = 0; hostdata->port_db[i].wwn != 0; i++) {
1371 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);
1372 if (hostdata->port_db[i].loop_id != hostdata->port_db[0].loop_id || i == 0)
1373 printk("%x", hostdata->port_db[i].loop_id);
1375 printk("Not Available");
1379 for (i = 0; i < QLOGICFC_REQ_QUEUE_LEN; i++){
1380 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)){
1381 if (hostdata->port_db[hostdata->handle_ptrs[i]->device->id].loop_id != hostdata->port_db[0].loop_id){
1382 Scsi_Cmnd *Cmnd = hostdata->handle_ptrs[i];
1385 pci_unmap_sg(hostdata->pci_dev,
1386 (struct scatterlist *)Cmnd->buffer,
1388 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1389 else if (Cmnd->request_bufflen &&
1390 Cmnd->sc_data_direction != PCI_DMA_NONE) {
1391 pci_unmap_page(hostdata->pci_dev,
1392 Cmnd->SCp.dma_handle,
1393 Cmnd->request_bufflen,
1394 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1397 hostdata->handle_ptrs[i]->result = DID_SOFT_ERROR << 16;
1399 if (hostdata->handle_ptrs[i]->scsi_done){
1400 (*hostdata->handle_ptrs[i]->scsi_done) (hostdata->handle_ptrs[i]);
1402 else printk("qlogicfc%d : done is null?\n", hostdata->host_id);
1403 hostdata->handle_ptrs[i] = NULL;
1404 hostdata->handle_serials[i] = 0;
1409 hostdata->adapter_state = AS_LOOP_GOOD;
1412 spin_unlock_irqrestore(host->host_lock, flags);
1416 #define ASYNC_EVENT_INTERRUPT 0x01
1418 irqreturn_t do_isp2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
1420 struct Scsi_Host *host = dev_id;
1421 unsigned long flags;
1423 spin_lock_irqsave(host->host_lock, flags);
1424 isp2x00_intr_handler(irq, dev_id, regs);
1425 spin_unlock_irqrestore(host->host_lock, flags);
1430 void isp2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
1433 struct Status_Entry *sts;
1434 struct Scsi_Host *host = dev_id;
1435 struct isp2x00_hostdata *hostdata;
1436 u_int in_ptr, out_ptr, handle, num_free;
1439 ENTER_INTR("isp2x00_intr_handler");
1441 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1443 DEBUG_INTR(printk("qlogicfc%d : interrupt on line %d\n", hostdata->host_id, irq));
1445 if (!(inw(host->io_port + PCI_INTER_STS) & 0x08)) {
1446 /* spurious interrupts can happen legally */
1447 DEBUG_INTR(printk("qlogicfc%d : got spurious interrupt\n", hostdata->host_id));
1450 in_ptr = inw(host->io_port + MBOX5);
1451 out_ptr = hostdata->res_out_ptr;
1453 if ((inw(host->io_port + PCI_SEMAPHORE) & ASYNC_EVENT_INTERRUPT)) {
1454 status = inw(host->io_port + MBOX0);
1456 DEBUG_INTR(printk("qlogicfc%d : mbox completion status: %x\n",
1457 hostdata->host_id, status));
1461 case POINT_TO_POINT_UP:
1462 printk("qlogicfc%d : Link is Up\n", hostdata->host_id);
1463 hostdata->adapter_state = AS_REDO_FABRIC_PORTDB | AS_REDO_LOOP_PORTDB;
1466 printk("qlogicfc%d : Link is Down\n", hostdata->host_id);
1467 hostdata->adapter_state = AS_LOOP_DOWN;
1469 case CONNECTION_MODE:
1470 printk("received CONNECTION_MODE irq %x\n", inw(host->io_port + MBOX1));
1472 case CHANGE_NOTIFICATION:
1473 printk("qlogicfc%d : RSCN Received\n", hostdata->host_id);
1474 if (hostdata->adapter_state == AS_LOOP_GOOD)
1475 hostdata->adapter_state = AS_REDO_FABRIC_PORTDB;
1479 printk("qlogicfc%d : Loop Reinitialized\n", hostdata->host_id);
1480 if (hostdata->adapter_state == AS_LOOP_GOOD)
1481 hostdata->adapter_state = AS_REDO_LOOP_PORTDB;
1484 printk("qlogicfc%d : The firmware just choked.\n", hostdata->host_id);
1485 hostdata->adapter_state = AS_FIRMWARE_DEAD;
1487 case SCSI_COMMAND_COMPLETE:
1488 handle = inw(host->io_port + MBOX1) | (inw(host->io_port + MBOX2) << 16);
1489 Cmnd = hostdata->handle_ptrs[handle];
1490 hostdata->handle_ptrs[handle] = NULL;
1491 hostdata->handle_serials[handle] = 0;
1495 pci_unmap_sg(hostdata->pci_dev,
1496 (struct scatterlist *)Cmnd->buffer,
1498 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1499 else if (Cmnd->request_bufflen &&
1500 Cmnd->sc_data_direction != PCI_DMA_NONE)
1501 pci_unmap_page(hostdata->pci_dev,
1502 Cmnd->SCp.dma_handle,
1503 Cmnd->request_bufflen,
1504 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1506 (*Cmnd->scsi_done) (Cmnd);
1508 printk("qlogicfc%d.c : got a null value out of handle_ptrs, this sucks\n", hostdata->host_id);
1510 case MBOX_COMMAND_COMPLETE:
1511 case INVALID_COMMAND:
1512 case HOST_INTERFACE_ERROR:
1515 case COMMAND_PARAM_ERROR:
1519 hostdata->mbox_done = 1;
1520 outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
1523 printk("qlogicfc%d : got an unknown status? %x\n", hostdata->host_id, status);
1525 if ((hostdata->adapter_state & AS_REDO_LOOP_PORTDB || hostdata->adapter_state & AS_REDO_FABRIC_PORTDB) && hostdata->explore_timer.data == 0){
1526 hostdata->explore_timer.function = redo_port_db;
1527 hostdata->explore_timer.data = (unsigned long)host;
1528 hostdata->explore_timer.expires = jiffies + (HZ/4);
1529 init_timer(&hostdata->explore_timer);
1530 add_timer(&hostdata->explore_timer);
1532 outw(0x0, host->io_port + PCI_SEMAPHORE);
1534 DEBUG_INTR(printk("qlogicfc%d : response queue update\n", hostdata->host_id));
1535 DEBUG_INTR(printk("qlogicfc%d : response queue depth %d\n", hostdata->host_id, RES_QUEUE_DEPTH(in_ptr, out_ptr)));
1537 while (out_ptr != in_ptr) {
1539 sts = (struct Status_Entry *) &hostdata->res[out_ptr*QUEUE_ENTRY_LEN];
1540 out_ptr = (out_ptr + 1) & RES_QUEUE_LEN;
1542 TRACE("done", out_ptr, Cmnd);
1543 DEBUG_INTR(isp2x00_print_status_entry(sts));
1544 le_hand = le32_to_cpu(sts->handle);
1545 if (sts->hdr.entry_type == ENTRY_STATUS && (Cmnd = hostdata->handle_ptrs[le_hand])) {
1546 Cmnd->result = isp2x00_return_status(Cmnd, sts);
1550 pci_unmap_sg(hostdata->pci_dev,
1551 (struct scatterlist *)Cmnd->buffer, Cmnd->use_sg,
1552 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1553 else if (Cmnd->request_bufflen && Cmnd->sc_data_direction != PCI_DMA_NONE)
1554 pci_unmap_page(hostdata->pci_dev,
1555 Cmnd->SCp.dma_handle,
1556 Cmnd->request_bufflen,
1557 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1560 * if any of the following are true we do not
1561 * call scsi_done. if the status is CS_ABORTED
1562 * we don't have to call done because the upper
1563 * level should already know its aborted.
1565 if (hostdata->handle_serials[le_hand] != Cmnd->serial_number
1566 || le16_to_cpu(sts->completion_status) == CS_ABORTED){
1567 hostdata->handle_serials[le_hand] = 0;
1568 hostdata->handle_ptrs[le_hand] = NULL;
1569 outw(out_ptr, host->io_port + MBOX5);
1573 * if we get back an error indicating the port
1574 * is not there or if the link is down and
1575 * this is a device that used to be there
1576 * allow the command to timeout.
1577 * the device may well be back in a couple of
1580 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){
1581 outw(out_ptr, host->io_port + MBOX5);
1585 outw(out_ptr, host->io_port + MBOX5);
1589 hostdata->handle_ptrs[le_hand] = NULL;
1591 if (sts->completion_status == cpu_to_le16(CS_RESET_OCCURRED)
1592 || (sts->status_flags & cpu_to_le16(STF_BUS_RESET)))
1593 hostdata->send_marker = 1;
1595 if (le16_to_cpu(sts->scsi_status) & 0x0200)
1596 memcpy(Cmnd->sense_buffer, sts->req_sense_data,
1597 sizeof(Cmnd->sense_buffer));
1599 outw(out_ptr, host->io_port + MBOX5);
1601 if (Cmnd->scsi_done != NULL) {
1602 (*Cmnd->scsi_done) (Cmnd);
1604 printk("qlogicfc%d : Ouch, scsi done is NULL\n", hostdata->host_id);
1606 hostdata->res_out_ptr = out_ptr;
1610 out_ptr = inw(host->io_port + MBOX4);
1611 in_ptr = hostdata->req_in_ptr;
1613 num_free = QLOGICFC_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr);
1614 num_free = (num_free > 2) ? num_free - 2 : 0;
1615 host->can_queue = host->host_busy + num_free;
1616 if (host->can_queue > QLOGICFC_REQ_QUEUE_LEN)
1617 host->can_queue = QLOGICFC_REQ_QUEUE_LEN;
1618 host->sg_tablesize = QLOGICFC_MAX_SG(num_free);
1620 outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
1621 LEAVE_INTR("isp2x00_intr_handler");
1625 static int isp2x00_return_status(Scsi_Cmnd *Cmnd, struct Status_Entry *sts)
1627 int host_status = DID_ERROR;
1628 #if DEBUG_ISP2x00_INTR
1629 static char *reason[] =
1642 #endif /* DEBUG_ISP2x00_INTR */
1644 ENTER("isp2x00_return_status");
1646 DEBUG(printk("qlogicfc : completion status = 0x%04x\n",
1647 le16_to_cpu(sts->completion_status)));
1649 switch (le16_to_cpu(sts->completion_status)) {
1651 host_status = DID_OK;
1654 host_status = DID_ERROR;
1656 case CS_RESET_OCCURRED:
1657 host_status = DID_RESET;
1660 host_status = DID_ABORT;
1663 host_status = DID_TIME_OUT;
1665 case CS_DATA_OVERRUN:
1666 host_status = DID_ERROR;
1668 case CS_DATA_UNDERRUN:
1669 if (Cmnd->underflow <= (Cmnd->request_bufflen - le32_to_cpu(sts->residual)))
1670 host_status = DID_OK;
1672 host_status = DID_ERROR;
1674 case CS_PORT_UNAVAILABLE:
1675 case CS_PORT_LOGGED_OUT:
1676 case CS_PORT_CONFIG_CHANGED:
1677 host_status = DID_BAD_TARGET;
1680 host_status = DID_ERROR;
1683 printk("qlogicfc : unknown completion status 0x%04x\n",
1684 le16_to_cpu(sts->completion_status));
1685 host_status = DID_ERROR;
1689 DEBUG_INTR(printk("qlogicfc : host status (%s) scsi status %x\n",
1690 reason[host_status], le16_to_cpu(sts->scsi_status)));
1692 LEAVE("isp2x00_return_status");
1694 return (le16_to_cpu(sts->scsi_status) & STATUS_MASK) | (host_status << 16);
1698 int isp2x00_abort(Scsi_Cmnd * Cmnd)
1702 struct Scsi_Host *host;
1703 struct isp2x00_hostdata *hostdata;
1704 int return_status = SUCCESS;
1706 ENTER("isp2x00_abort");
1708 host = Cmnd->device->host;
1709 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1711 for (i = 0; i < QLOGICFC_REQ_QUEUE_LEN; i++)
1712 if (hostdata->handle_ptrs[i] == Cmnd)
1715 if (i == QLOGICFC_REQ_QUEUE_LEN){
1719 isp2x00_disable_irqs(host);
1721 param[0] = MBOX_ABORT_IOCB;
1723 param[1] = (((u_short) hostdata->port_db[Cmnd->device->id].loop_id) << 8) | Cmnd->device->lun;
1725 param[1] = (((u_short) Cmnd->target) << 8) | Cmnd->lun;
1727 param[2] = i & 0xffff;
1730 isp2x00_mbox_command(host, param);
1732 if (param[0] != MBOX_COMMAND_COMPLETE) {
1733 printk("qlogicfc%d : scsi abort failure: %x\n", hostdata->host_id, param[0]);
1734 if (param[0] == 0x4005)
1735 Cmnd->result = DID_ERROR << 16;
1736 if (param[0] == 0x4006)
1737 Cmnd->result = DID_BAD_TARGET << 16;
1738 return_status = FAILED;
1741 if (return_status != SUCCESS){
1742 param[0] = MBOX_GET_FIRMWARE_STATE;
1743 isp2x00_mbox_command(host, param);
1744 printk("qlogicfc%d : abort failed\n", hostdata->host_id);
1745 printk("qlogicfc%d : firmware status is %x %x\n", hostdata->host_id, param[0], param[1]);
1748 isp2x00_enable_irqs(host);
1750 LEAVE("isp2x00_abort");
1752 return return_status;
1756 int isp2x00_reset(Scsi_Cmnd * Cmnd, unsigned int reset_flags)
1759 struct Scsi_Host *host;
1760 struct isp2x00_hostdata *hostdata;
1761 int return_status = SCSI_RESET_SUCCESS;
1763 ENTER("isp2x00_reset");
1765 host = Cmnd->device->host;
1766 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1767 param[0] = MBOX_BUS_RESET;
1770 isp2x00_disable_irqs(host);
1772 isp2x00_mbox_command(host, param);
1774 if (param[0] != MBOX_COMMAND_COMPLETE) {
1775 printk("qlogicfc%d : scsi bus reset failure: %x\n", hostdata->host_id, param[0]);
1776 return_status = SCSI_RESET_ERROR;
1778 isp2x00_enable_irqs(host);
1780 LEAVE("isp2x00_reset");
1782 return return_status;
1786 int isp2x00_biosparam(struct scsi_device *sdev, struct block_device *n,
1787 sector_t capacity, int ip[])
1789 int size = capacity;
1791 ENTER("isp2x00_biosparam");
1799 ip[2] = size / (ip[0] * ip[1]);
1801 LEAVE("isp2x00_biosparam");
1806 static int isp2x00_reset_hardware(struct Scsi_Host *host)
1809 struct isp2x00_hostdata *hostdata;
1813 ENTER("isp2x00_reset_hardware");
1815 hostdata = (struct isp2x00_hostdata *) host->hostdata;
1818 * This cannot be right - PCI writes are posted
1819 * (apparently this is hardware design flaw not software ?)
1822 outw(0x01, host->io_port + ISP_CTRL_STATUS);
1824 outw(HCCR_RESET, host->io_port + HOST_HCCR);
1826 outw(HCCR_RELEASE, host->io_port + HOST_HCCR);
1827 outw(HCCR_BIOS_DISABLE, host->io_port + HOST_HCCR);
1829 loop_count = DEFAULT_LOOP_COUNT;
1830 while (--loop_count && inw(host->io_port + HOST_HCCR) == RISC_BUSY) {
1835 printk("qlogicfc%d : reset_hardware loop timeout\n", hostdata->host_id);
1840 printk("qlogicfc%d : mbox 0 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX0));
1841 printk("qlogicfc%d : mbox 1 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX1));
1842 printk("qlogicfc%d : mbox 2 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX2));
1843 printk("qlogicfc%d : mbox 3 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX3));
1844 printk("qlogicfc%d : mbox 4 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX4));
1845 printk("qlogicfc%d : mbox 5 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX5));
1846 printk("qlogicfc%d : mbox 6 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX6));
1847 printk("qlogicfc%d : mbox 7 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX7));
1848 #endif /* DEBUG_ISP2x00 */
1850 DEBUG(printk("qlogicfc%d : verifying checksum\n", hostdata->host_id));
1852 #if defined(CONFIG_SCSI_QLOGIC_FC_FIRMWARE)
1855 unsigned short * risc_code = NULL;
1856 unsigned short risc_code_len = 0;
1857 if (hostdata->pci_dev->device == PCI_DEVICE_ID_QLOGIC_ISP2100){
1858 risc_code = risc_code2100;
1859 risc_code_len = risc_code_length2100;
1861 else if (hostdata->pci_dev->device == PCI_DEVICE_ID_QLOGIC_ISP2200){
1862 risc_code = risc_code2200;
1863 risc_code_len = risc_code_length2200;
1866 for (i = 0; i < risc_code_len; i++) {
1867 param[0] = MBOX_WRITE_RAM_WORD;
1868 param[1] = risc_code_addr01 + i;
1869 param[2] = risc_code[i];
1871 isp2x00_mbox_command(host, param);
1873 if (param[0] != MBOX_COMMAND_COMPLETE) {
1874 printk("qlogicfc%d : firmware load failure\n", hostdata->host_id);
1879 #endif /* RELOAD_FIRMWARE */
1881 param[0] = MBOX_VERIFY_CHECKSUM;
1882 param[1] = risc_code_addr01;
1884 isp2x00_mbox_command(host, param);
1886 if (param[0] != MBOX_COMMAND_COMPLETE) {
1887 printk("qlogicfc%d : ram checksum failure\n", hostdata->host_id);
1890 DEBUG(printk("qlogicfc%d : executing firmware\n", hostdata->host_id));
1892 param[0] = MBOX_EXEC_FIRMWARE;
1893 param[1] = risc_code_addr01;
1895 isp2x00_mbox_command(host, param);
1897 param[0] = MBOX_ABOUT_FIRMWARE;
1899 isp2x00_mbox_command(host, param);
1901 if (param[0] != MBOX_COMMAND_COMPLETE) {
1902 printk("qlogicfc%d : about firmware failure\n", hostdata->host_id);
1905 DEBUG(printk("qlogicfc%d : firmware major revision %d\n", hostdata->host_id, param[1]));
1906 DEBUG(printk("qlogicfc%d : firmware minor revision %d\n", hostdata->host_id, param[2]));
1908 #ifdef USE_NVRAM_DEFAULTS
1910 if (isp2x00_get_nvram_defaults(host, &hostdata->control_block) != 0) {
1911 printk("qlogicfc%d : Could not read from NVRAM\n", hostdata->host_id);
1915 hostdata->wwn = (u64) (cpu_to_le16(hostdata->control_block.node_name[0])) << 56;
1916 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[0]) & 0xff00) << 48;
1917 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[1]) & 0xff00) << 24;
1918 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[1]) & 0x00ff) << 48;
1919 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[2]) & 0x00ff) << 24;
1920 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[2]) & 0xff00) << 8;
1921 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[3]) & 0x00ff) << 8;
1922 hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[3]) & 0xff00) >> 8;
1924 /* FIXME: If the DMA transfer goes one way only, this should use
1925 * PCI_DMA_TODEVICE and below as well.
1927 busaddr = pci_map_page(hostdata->pci_dev,
1928 virt_to_page(&hostdata->control_block),
1929 offset_in_page(&hostdata->control_block),
1930 sizeof(hostdata->control_block),
1931 PCI_DMA_BIDIRECTIONAL);
1933 param[0] = MBOX_INIT_FIRMWARE;
1934 param[2] = (u_short) (pci64_dma_lo32(busaddr) >> 16);
1935 param[3] = (u_short) (pci64_dma_lo32(busaddr) & 0xffff);
1938 param[6] = (u_short) (pci64_dma_hi32(busaddr) >> 16);
1939 param[7] = (u_short) (pci64_dma_hi32(busaddr) & 0xffff);
1940 isp2x00_mbox_command(host, param);
1941 if (param[0] != MBOX_COMMAND_COMPLETE) {
1942 printk("qlogicfc%d.c: Ouch 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);
1948 param[0] = MBOX_GET_FIRMWARE_STATE;
1949 isp2x00_mbox_command(host, param);
1950 if (param[0] != MBOX_COMMAND_COMPLETE) {
1951 printk("qlogicfc%d.c: 0x%04x\n", hostdata->host_id, param[0]);
1952 pci_unmap_page(hostdata->pci_dev, busaddr,
1953 sizeof(hostdata->control_block),
1954 PCI_DMA_BIDIRECTIONAL);
1958 pci_unmap_page(hostdata->pci_dev, busaddr,
1959 sizeof(hostdata->control_block),
1960 PCI_DMA_BIDIRECTIONAL);
1961 LEAVE("isp2x00_reset_hardware");
1966 #ifdef USE_NVRAM_DEFAULTS
1968 static int isp2x00_get_nvram_defaults(struct Scsi_Host *host, struct init_cb *control_block)
1972 if (isp2x00_read_nvram_word(host, 0) != 0x5349)
1975 value = isp2x00_read_nvram_word(host, 8);
1976 control_block->node_name[0] = cpu_to_le16(isp2x00_read_nvram_word(host, 9));
1977 control_block->node_name[1] = cpu_to_le16(isp2x00_read_nvram_word(host, 10));
1978 control_block->node_name[2] = cpu_to_le16(isp2x00_read_nvram_word(host, 11));
1979 control_block->node_name[3] = cpu_to_le16(isp2x00_read_nvram_word(host, 12));
1980 control_block->hard_addr = cpu_to_le16(isp2x00_read_nvram_word(host, 13));
1988 static int isp2x00_init(struct Scsi_Host *sh)
1991 struct isp2x00_hostdata *hostdata;
1995 struct pci_dev *pdev;
1998 ENTER("isp2x00_init");
2000 hostdata = (struct isp2x00_hostdata *) sh->hostdata;
2001 pdev = hostdata->pci_dev;
2003 if (pci_read_config_word(pdev, PCI_COMMAND, &command)
2004 || pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision)) {
2005 printk("qlogicfc%d : error reading PCI configuration\n", hostdata->host_id);
2008 io_base = pci_resource_start(pdev, 0);
2012 if (pdev->vendor != PCI_VENDOR_ID_QLOGIC) {
2013 printk("qlogicfc%d : 0x%04x is not QLogic vendor ID\n", hostdata->host_id,
2017 if (pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2100 && pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2200) {
2018 printk("qlogicfc%d : 0x%04x does not match ISP2100 or ISP2200 device id\n", hostdata->host_id,
2022 if (!(command & PCI_COMMAND_IO) ||
2023 !(pdev->resource[0].flags & IORESOURCE_IO)) {
2024 printk("qlogicfc%d : i/o mapping is disabled\n", hostdata->host_id);
2028 pci_set_master(pdev);
2029 if (revision != ISP2100_REV_ID1 && revision != ISP2100_REV_ID3 && revision != ISP2200_REV_ID5)
2030 printk("qlogicfc%d : new isp2x00 revision ID (%d)\n", hostdata->host_id, revision);
2033 hostdata->revision = revision;
2036 sh->io_port = io_base;
2038 LEAVE("isp2x00_init");
2043 #if USE_NVRAM_DEFAULTS
2045 #define NVRAM_DELAY() udelay(10) /* 10 microsecond delay */
2048 u_short isp2x00_read_nvram_word(struct Scsi_Host * host, u_short byte)
2051 u_short value, output, input;
2053 outw(0x2, host->io_port + PCI_NVRAM);
2055 outw(0x3, host->io_port + PCI_NVRAM);
2060 for (i = 10; i >= 0; i--) {
2061 output = ((byte >> i) & 0x1) ? 0x4 : 0x0;
2062 outw(output | 0x2, host->io_port + PCI_NVRAM);
2064 outw(output | 0x3, host->io_port + PCI_NVRAM);
2066 outw(output | 0x2, host->io_port + PCI_NVRAM);
2070 for (i = 0xf, value = 0; i >= 0; i--) {
2072 outw(0x3, host->io_port + PCI_NVRAM);
2074 input = inw(host->io_port + PCI_NVRAM);
2076 outw(0x2, host->io_port + PCI_NVRAM);
2082 outw(0x0, host->io_port + PCI_NVRAM);
2089 #endif /* USE_NVRAM_DEFAULTS */
2094 * currently, this is only called during initialization or abort/reset,
2095 * at which times interrupts are disabled, so polling is OK, I guess...
2097 static int isp2x00_mbox_command(struct Scsi_Host *host, u_short param[])
2100 struct isp2x00_hostdata *hostdata = (struct isp2x00_hostdata *) host->hostdata;
2102 if (mbox_param[param[0]] == 0 || hostdata->adapter_state == AS_FIRMWARE_DEAD)
2105 loop_count = DEFAULT_LOOP_COUNT;
2106 while (--loop_count && inw(host->io_port + HOST_HCCR) & 0x0080) {
2111 printk("qlogicfc%d : mbox_command loop timeout #1\n", hostdata->host_id);
2113 hostdata->adapter_state = AS_FIRMWARE_DEAD;
2116 hostdata->mbox_done = 0;
2118 if (mbox_param[param[0]] == 0)
2119 printk("qlogicfc%d : invalid mbox command\n", hostdata->host_id);
2121 if (mbox_param[param[0]] & 0x80)
2122 outw(param[7], host->io_port + MBOX7);
2123 if (mbox_param[param[0]] & 0x40)
2124 outw(param[6], host->io_port + MBOX6);
2125 if (mbox_param[param[0]] & 0x20)
2126 outw(param[5], host->io_port + MBOX5);
2127 if (mbox_param[param[0]] & 0x10)
2128 outw(param[4], host->io_port + MBOX4);
2129 if (mbox_param[param[0]] & 0x08)
2130 outw(param[3], host->io_port + MBOX3);
2131 if (mbox_param[param[0]] & 0x04)
2132 outw(param[2], host->io_port + MBOX2);
2133 if (mbox_param[param[0]] & 0x02)
2134 outw(param[1], host->io_port + MBOX1);
2135 if (mbox_param[param[0]] & 0x01)
2136 outw(param[0], host->io_port + MBOX0);
2139 outw(HCCR_SET_HOST_INTR, host->io_port + HOST_HCCR);
2142 loop_count = DEFAULT_LOOP_COUNT;
2143 while (--loop_count && !(inw(host->io_port + PCI_INTER_STS) & 0x08)) {
2149 hostdata->adapter_state = AS_FIRMWARE_DEAD;
2150 printk("qlogicfc%d : mbox_command loop timeout #2\n", hostdata->host_id);
2153 isp2x00_intr_handler(host->irq, host, NULL);
2155 if (hostdata->mbox_done == 1)
2160 loop_count = DEFAULT_LOOP_COUNT;
2161 while (--loop_count && inw(host->io_port + MBOX0) == 0x04) {
2166 printk("qlogicfc%d : mbox_command loop timeout #3\n", hostdata->host_id);
2168 param[7] = inw(host->io_port + MBOX7);
2169 param[6] = inw(host->io_port + MBOX6);
2170 param[5] = inw(host->io_port + MBOX5);
2171 param[4] = inw(host->io_port + MBOX4);
2172 param[3] = inw(host->io_port + MBOX3);
2173 param[2] = inw(host->io_port + MBOX2);
2174 param[1] = inw(host->io_port + MBOX1);
2175 param[0] = inw(host->io_port + MBOX0);
2178 outw(0x0, host->io_port + PCI_SEMAPHORE);
2180 if (inw(host->io_port + HOST_HCCR) & 0x0080) {
2181 hostdata->adapter_state = AS_FIRMWARE_DEAD;
2182 printk("qlogicfc%d : mbox op is still pending\n", hostdata->host_id);
2187 #if DEBUG_ISP2x00_INTR
2189 void isp2x00_print_status_entry(struct Status_Entry *status)
2191 printk("qlogicfc : entry count = 0x%02x, type = 0x%02x, flags = 0x%02x\n",
2192 status->hdr.entry_cnt, status->hdr.entry_type, status->hdr.flags);
2193 printk("qlogicfc : scsi status = 0x%04x, completion status = 0x%04x\n",
2194 le16_to_cpu(status->scsi_status), le16_to_cpu(status->completion_status));
2195 printk("qlogicfc : state flags = 0x%04x, status flags = 0x%04x\n",
2196 le16_to_cpu(status->state_flags), le16_to_cpu(status->status_flags));
2197 printk("qlogicfc : response info length = 0x%04x, request sense length = 0x%04x\n",
2198 le16_to_cpu(status->res_info_len), le16_to_cpu(status->req_sense_len));
2199 printk("qlogicfc : residual transfer length = 0x%08x, response = 0x%02x\n", le32_to_cpu(status->residual), status->res_info[3]);
2203 #endif /* DEBUG_ISP2x00_INTR */
2208 void isp2x00_print_scsi_cmd(Scsi_Cmnd * cmd)
2212 printk("qlogicfc : target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
2213 cmd->target, cmd->lun, cmd->cmd_len);
2214 printk("qlogicfc : command = ");
2215 for (i = 0; i < cmd->cmd_len; i++)
2216 printk("0x%02x ", cmd->cmnd[i]);
2220 #endif /* DEBUG_ISP2x00 */
2222 MODULE_LICENSE("GPL");
2224 static Scsi_Host_Template driver_template = {
2225 .detect = isp2x00_detect,
2226 .release = isp2x00_release,
2227 .info = isp2x00_info,
2228 .queuecommand = isp2x00_queuecommand,
2229 .eh_abort_handler = isp2x00_abort,
2230 .bios_param = isp2x00_biosparam,
2231 .can_queue = QLOGICFC_REQ_QUEUE_LEN,
2233 .sg_tablesize = QLOGICFC_MAX_SG(QLOGICFC_REQ_QUEUE_LEN),
2234 .cmd_per_lun = QLOGICFC_CMD_PER_LUN,
2235 .use_clustering = ENABLE_CLUSTERING,
2237 #include "scsi_module.c"