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1/******************************************************************************
2* QLOGIC LINUX SOFTWARE
3*
4* QLogic QLA1280 (Ultra2) and QLA12160 (Ultra3) SCSI driver
5* Copyright (C) 2000 Qlogic Corporation (www.qlogic.com)
6* Copyright (C) 2001-2004 Jes Sorensen, Wild Open Source Inc.
7* Copyright (C) 2003-2004 Christoph Hellwig
8*
9* This program is free software; you can redistribute it and/or modify it
10* under the terms of the GNU General Public License as published by the
11* Free Software Foundation; either version 2, or (at your option) any
12* later version.
13*
14* This program is distributed in the hope that it will be useful, but
15* WITHOUT ANY WARRANTY; without even the implied warranty of
16* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17* General Public License for more details.
18*
19******************************************************************************/
20#define QLA1280_VERSION "3.27.1"
21/*****************************************************************************
22 Revision History:
23 Rev 3.27.1, February 8, 2010, Michael Reed
24 - Retain firmware image for error recovery.
25 Rev 3.27, February 10, 2009, Michael Reed
26 - General code cleanup.
27 - Improve error recovery.
28 Rev 3.26, January 16, 2006 Jes Sorensen
29 - Ditch all < 2.6 support
30 Rev 3.25.1, February 10, 2005 Christoph Hellwig
31 - use pci_map_single to map non-S/G requests
32 - remove qla1280_proc_info
33 Rev 3.25, September 28, 2004, Christoph Hellwig
34 - add support for ISP1020/1040
35 - don't include "scsi.h" anymore for 2.6.x
36 Rev 3.24.4 June 7, 2004 Christoph Hellwig
37 - restructure firmware loading, cleanup initialization code
38 - prepare support for ISP1020/1040 chips
39 Rev 3.24.3 January 19, 2004, Jes Sorensen
40 - Handle PCI DMA mask settings correctly
41 - Correct order of error handling in probe_one, free_irq should not
42 be called if request_irq failed
43 Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez
44 - Big endian fixes (James)
45 - Remove bogus IOCB content on zero data transfer commands (Andrew)
46 Rev 3.24.1 January 5, 2004, Jes Sorensen
47 - Initialize completion queue to avoid OOPS on probe
48 - Handle interrupts during mailbox testing
49 Rev 3.24 November 17, 2003, Christoph Hellwig
50 - use struct list_head for completion queue
51 - avoid old Scsi_FOO typedefs
52 - cleanup 2.4 compat glue a bit
53 - use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h"
54 - make initialization for memory mapped vs port I/O more similar
55 - remove broken pci config space manipulation
56 - kill more cruft
57 - this is an almost perfect 2.6 scsi driver now! ;)
58 Rev 3.23.39 December 17, 2003, Jes Sorensen
59 - Delete completion queue from srb if mailbox command failed to
60 to avoid qla1280_done completeting qla1280_error_action's
61 obsolete context
62 - Reduce arguments for qla1280_done
63 Rev 3.23.38 October 18, 2003, Christoph Hellwig
64 - Convert to new-style hotplugable driver for 2.6
65 - Fix missing scsi_unregister/scsi_host_put on HBA removal
66 - Kill some more cruft
67 Rev 3.23.37 October 1, 2003, Jes Sorensen
68 - Make MMIO depend on CONFIG_X86_VISWS instead of yet another
69 random CONFIG option
70 - Clean up locking in probe path
71 Rev 3.23.36 October 1, 2003, Christoph Hellwig
72 - queuecommand only ever receives new commands - clear flags
73 - Reintegrate lost fixes from Linux 2.5
74 Rev 3.23.35 August 14, 2003, Jes Sorensen
75 - Build against 2.6
76 Rev 3.23.34 July 23, 2003, Jes Sorensen
77 - Remove pointless TRUE/FALSE macros
78 - Clean up vchan handling
79 Rev 3.23.33 July 3, 2003, Jes Sorensen
80 - Don't define register access macros before define determining MMIO.
81 This just happened to work out on ia64 but not elsewhere.
82 - Don't try and read from the card while it is in reset as
83 it won't respond and causes an MCA
84 Rev 3.23.32 June 23, 2003, Jes Sorensen
85 - Basic support for boot time arguments
86 Rev 3.23.31 June 8, 2003, Jes Sorensen
87 - Reduce boot time messages
88 Rev 3.23.30 June 6, 2003, Jes Sorensen
89 - Do not enable sync/wide/ppr before it has been determined
90 that the target device actually supports it
91 - Enable DMA arbitration for multi channel controllers
92 Rev 3.23.29 June 3, 2003, Jes Sorensen
93 - Port to 2.5.69
94 Rev 3.23.28 June 3, 2003, Jes Sorensen
95 - Eliminate duplicate marker commands on bus resets
96 - Handle outstanding commands appropriately on bus/device resets
97 Rev 3.23.27 May 28, 2003, Jes Sorensen
98 - Remove bogus input queue code, let the Linux SCSI layer do the work
99 - Clean up NVRAM handling, only read it once from the card
100 - Add a number of missing default nvram parameters
101 Rev 3.23.26 Beta May 28, 2003, Jes Sorensen
102 - Use completion queue for mailbox commands instead of busy wait
103 Rev 3.23.25 Beta May 27, 2003, James Bottomley
104 - Migrate to use new error handling code
105 Rev 3.23.24 Beta May 21, 2003, James Bottomley
106 - Big endian support
107 - Cleanup data direction code
108 Rev 3.23.23 Beta May 12, 2003, Jes Sorensen
109 - Switch to using MMIO instead of PIO
110 Rev 3.23.22 Beta April 15, 2003, Jes Sorensen
111 - Fix PCI parity problem with 12160 during reset.
112 Rev 3.23.21 Beta April 14, 2003, Jes Sorensen
113 - Use pci_map_page()/pci_unmap_page() instead of map_single version.
114 Rev 3.23.20 Beta April 9, 2003, Jes Sorensen
115 - Remove < 2.4.x support
116 - Introduce HOST_LOCK to make the spin lock changes portable.
117 - Remove a bunch of idiotic and unnecessary typedef's
118 - Kill all leftovers of target-mode support which never worked anyway
119 Rev 3.23.19 Beta April 11, 2002, Linus Torvalds
120 - Do qla1280_pci_config() before calling request_irq() and
121 request_region()
122 - Use pci_dma_hi32() to handle upper word of DMA addresses instead
123 of large shifts
124 - Hand correct arguments to free_irq() in case of failure
125 Rev 3.23.18 Beta April 11, 2002, Jes Sorensen
126 - Run source through Lindent and clean up the output
127 Rev 3.23.17 Beta April 11, 2002, Jes Sorensen
128 - Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32
129 Rev 3.23.16 Beta March 19, 2002, Jes Sorensen
130 - Rely on mailbox commands generating interrupts - do not
131 run qla1280_isr() from ql1280_mailbox_command()
132 - Remove device_reg_t
133 - Integrate ql12160_set_target_parameters() with 1280 version
134 - Make qla1280_setup() non static
135 - Do not call qla1280_check_for_dead_scsi_bus() on every I/O request
136 sent to the card - this command pauses the firmware!!!
137 Rev 3.23.15 Beta March 19, 2002, Jes Sorensen
138 - Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions
139 - Remove a pile of pointless and confusing (srb_t **) and
140 (scsi_lu_t *) typecasts
141 - Explicit mark that we do not use the new error handling (for now)
142 - Remove scsi_qla_host_t and use 'struct' instead
143 - Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled,
144 pci_64bit_slot flags which weren't used for anything anyway
145 - Grab host->host_lock while calling qla1280_isr() from abort()
146 - Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we
147 do not need to save/restore flags in the interrupt handler
148 - Enable interrupts early (before any mailbox access) in preparation
149 for cleaning up the mailbox handling
150 Rev 3.23.14 Beta March 14, 2002, Jes Sorensen
151 - Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace
152 it with proper use of dprintk().
153 - Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take
154 a debug level argument to determine if data is to be printed
155 - Add KERN_* info to printk()
156 Rev 3.23.13 Beta March 14, 2002, Jes Sorensen
157 - Significant cosmetic cleanups
158 - Change debug code to use dprintk() and remove #if mess
159 Rev 3.23.12 Beta March 13, 2002, Jes Sorensen
160 - More cosmetic cleanups, fix places treating return as function
161 - use cpu_relax() in qla1280_debounce_register()
162 Rev 3.23.11 Beta March 13, 2002, Jes Sorensen
163 - Make it compile under 2.5.5
164 Rev 3.23.10 Beta October 1, 2001, Jes Sorensen
165 - Do no typecast short * to long * in QL1280BoardTbl, this
166 broke miserably on big endian boxes
167 Rev 3.23.9 Beta September 30, 2001, Jes Sorensen
168 - Remove pre 2.2 hack for checking for reentrance in interrupt handler
169 - Make data types used to receive from SCSI_{BUS,TCN,LUN}_32
170 unsigned int to match the types from struct scsi_cmnd
171 Rev 3.23.8 Beta September 29, 2001, Jes Sorensen
172 - Remove bogus timer_t typedef from qla1280.h
173 - Remove obsolete pre 2.2 PCI setup code, use proper #define's
174 for PCI_ values, call pci_set_master()
175 - Fix memleak of qla1280_buffer on module unload
176 - Only compile module parsing code #ifdef MODULE - should be
177 changed to use individual MODULE_PARM's later
178 - Remove dummy_buffer that was never modified nor printed
179 - ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove
180 #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls
181 - Remove \r from print statements, this is Linux, not DOS
182 - Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK}
183 dummy macros
184 - Remove C++ compile hack in header file as Linux driver are not
185 supposed to be compiled as C++
186 - Kill MS_64BITS macro as it makes the code more readable
187 - Remove unnecessary flags.in_interrupts bit
188 Rev 3.23.7 Beta August 20, 2001, Jes Sorensen
189 - Dont' check for set flags on q->q_flag one by one in qla1280_next()
190 - Check whether the interrupt was generated by the QLA1280 before
191 doing any processing
192 - qla1280_status_entry(): Only zero out part of sense_buffer that
193 is not being copied into
194 - Remove more superflouous typecasts
195 - qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy()
196 Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel
197 - Don't walk the entire list in qla1280_putq_t() just to directly
198 grab the pointer to the last element afterwards
199 Rev 3.23.5 Beta August 9, 2001, Jes Sorensen
200 - Don't use IRQF_DISABLED, it's use is deprecated for this kinda driver
201 Rev 3.23.4 Beta August 8, 2001, Jes Sorensen
202 - Set dev->max_sectors to 1024
203 Rev 3.23.3 Beta August 6, 2001, Jes Sorensen
204 - Provide compat macros for pci_enable_device(), pci_find_subsys()
205 and scsi_set_pci_device()
206 - Call scsi_set_pci_device() for all devices
207 - Reduce size of kernel version dependent device probe code
208 - Move duplicate probe/init code to separate function
209 - Handle error if qla1280_mem_alloc() fails
210 - Kill OFFSET() macro and use Linux's PCI definitions instead
211 - Kill private structure defining PCI config space (struct config_reg)
212 - Only allocate I/O port region if not in MMIO mode
213 - Remove duplicate (unused) sanity check of sife of srb_t
214 Rev 3.23.2 Beta August 6, 2001, Jes Sorensen
215 - Change home-brew memset() implementations to use memset()
216 - Remove all references to COMTRACE() - accessing a PC's COM2 serial
217 port directly is not legal under Linux.
218 Rev 3.23.1 Beta April 24, 2001, Jes Sorensen
219 - Remove pre 2.2 kernel support
220 - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat)
221 - Fix MMIO access to use readl/writel instead of directly
222 dereferencing pointers
223 - Nuke MSDOS debugging code
224 - Change true/false data types to int from uint8_t
225 - Use int for counters instead of uint8_t etc.
226 - Clean up size & byte order conversion macro usage
227 Rev 3.23 Beta January 11, 2001 BN Qlogic
228 - Added check of device_id when handling non
229 QLA12160s during detect().
230 Rev 3.22 Beta January 5, 2001 BN Qlogic
231 - Changed queue_task() to schedule_task()
232 for kernels 2.4.0 and higher.
233 Note: 2.4.0-testxx kernels released prior to
234 the actual 2.4.0 kernel release on January 2001
235 will get compile/link errors with schedule_task().
236 Please update your kernel to released 2.4.0 level,
237 or comment lines in this file flagged with 3.22
238 to resolve compile/link error of schedule_task().
239 - Added -DCONFIG_SMP in addition to -D__SMP__
240 in Makefile for 2.4.0 builds of driver as module.
241 Rev 3.21 Beta January 4, 2001 BN Qlogic
242 - Changed criteria of 64/32 Bit mode of HBA
243 operation according to BITS_PER_LONG rather
244 than HBA's NVRAM setting of >4Gig memory bit;
245 so that the HBA auto-configures without the need
246 to setup each system individually.
247 Rev 3.20 Beta December 5, 2000 BN Qlogic
248 - Added priority handling to IA-64 onboard SCSI
249 ISP12160 chip for kernels greater than 2.3.18.
250 - Added irqrestore for qla1280_intr_handler.
251 - Enabled /proc/scsi/qla1280 interface.
252 - Clear /proc/scsi/qla1280 counters in detect().
253 Rev 3.19 Beta October 13, 2000 BN Qlogic
254 - Declare driver_template for new kernel
255 (2.4.0 and greater) scsi initialization scheme.
256 - Update /proc/scsi entry for 2.3.18 kernels and
257 above as qla1280
258 Rev 3.18 Beta October 10, 2000 BN Qlogic
259 - Changed scan order of adapters to map
260 the QLA12160 followed by the QLA1280.
261 Rev 3.17 Beta September 18, 2000 BN Qlogic
262 - Removed warnings for 32 bit 2.4.x compiles
263 - Corrected declared size for request and response
264 DMA addresses that are kept in each ha
265 Rev. 3.16 Beta August 25, 2000 BN Qlogic
266 - Corrected 64 bit addressing issue on IA-64
267 where the upper 32 bits were not properly
268 passed to the RISC engine.
269 Rev. 3.15 Beta August 22, 2000 BN Qlogic
270 - Modified qla1280_setup_chip to properly load
271 ISP firmware for greater that 4 Gig memory on IA-64
272 Rev. 3.14 Beta August 16, 2000 BN Qlogic
273 - Added setting of dma_mask to full 64 bit
274 if flags.enable_64bit_addressing is set in NVRAM
275 Rev. 3.13 Beta August 16, 2000 BN Qlogic
276 - Use new PCI DMA mapping APIs for 2.4.x kernel
277 Rev. 3.12 July 18, 2000 Redhat & BN Qlogic
278 - Added check of pci_enable_device to detect() for 2.3.x
279 - Use pci_resource_start() instead of
280 pdev->resource[0].start in detect() for 2.3.x
281 - Updated driver version
282 Rev. 3.11 July 14, 2000 BN Qlogic
283 - Updated SCSI Firmware to following versions:
284 qla1x80: 8.13.08
285 qla1x160: 10.04.08
286 - Updated driver version to 3.11
287 Rev. 3.10 June 23, 2000 BN Qlogic
288 - Added filtering of AMI SubSys Vendor ID devices
289 Rev. 3.9
290 - DEBUG_QLA1280 undefined and new version BN Qlogic
291 Rev. 3.08b May 9, 2000 MD Dell
292 - Added logic to check against AMI subsystem vendor ID
293 Rev. 3.08 May 4, 2000 DG Qlogic
294 - Added logic to check for PCI subsystem ID.
295 Rev. 3.07 Apr 24, 2000 DG & BN Qlogic
296 - Updated SCSI Firmware to following versions:
297 qla12160: 10.01.19
298 qla1280: 8.09.00
299 Rev. 3.06 Apr 12, 2000 DG & BN Qlogic
300 - Internal revision; not released
301 Rev. 3.05 Mar 28, 2000 DG & BN Qlogic
302 - Edit correction for virt_to_bus and PROC.
303 Rev. 3.04 Mar 28, 2000 DG & BN Qlogic
304 - Merge changes from ia64 port.
305 Rev. 3.03 Mar 28, 2000 BN Qlogic
306 - Increase version to reflect new code drop with compile fix
307 of issue with inclusion of linux/spinlock for 2.3 kernels
308 Rev. 3.02 Mar 15, 2000 BN Qlogic
309 - Merge qla1280_proc_info from 2.10 code base
310 Rev. 3.01 Feb 10, 2000 BN Qlogic
311 - Corrected code to compile on a 2.2.x kernel.
312 Rev. 3.00 Jan 17, 2000 DG Qlogic
313 - Added 64-bit support.
314 Rev. 2.07 Nov 9, 1999 DG Qlogic
315 - Added new routine to set target parameters for ISP12160.
316 Rev. 2.06 Sept 10, 1999 DG Qlogic
317 - Added support for ISP12160 Ultra 3 chip.
318 Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont
319 - Modified code to remove errors generated when compiling with
320 Cygnus IA64 Compiler.
321 - Changed conversion of pointers to unsigned longs instead of integers.
322 - Changed type of I/O port variables from uint32_t to unsigned long.
323 - Modified OFFSET macro to work with 64-bit as well as 32-bit.
324 - Changed sprintf and printk format specifiers for pointers to %p.
325 - Changed some int to long type casts where needed in sprintf & printk.
326 - Added l modifiers to sprintf and printk format specifiers for longs.
327 - Removed unused local variables.
328 Rev. 1.20 June 8, 1999 DG, Qlogic
329 Changes to support RedHat release 6.0 (kernel 2.2.5).
330 - Added SCSI exclusive access lock (io_request_lock) when accessing
331 the adapter.
332 - Added changes for the new LINUX interface template. Some new error
333 handling routines have been added to the template, but for now we
334 will use the old ones.
335 - Initial Beta Release.
336*****************************************************************************/
337
338
339#include <linux/module.h>
340
341#include <linux/types.h>
342#include <linux/string.h>
343#include <linux/errno.h>
344#include <linux/kernel.h>
345#include <linux/ioport.h>
346#include <linux/delay.h>
347#include <linux/timer.h>
348#include <linux/pci.h>
349#include <linux/proc_fs.h>
350#include <linux/stat.h>
351#include <linux/pci_ids.h>
352#include <linux/interrupt.h>
353#include <linux/init.h>
354#include <linux/dma-mapping.h>
355#include <linux/firmware.h>
356
357#include <asm/io.h>
358#include <asm/irq.h>
359#include <asm/byteorder.h>
360#include <asm/processor.h>
361#include <asm/types.h>
362#include <asm/system.h>
363
364#include <scsi/scsi.h>
365#include <scsi/scsi_cmnd.h>
366#include <scsi/scsi_device.h>
367#include <scsi/scsi_host.h>
368#include <scsi/scsi_tcq.h>
369
370#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
371#include <asm/sn/io.h>
372#endif
373
374
375/*
376 * Compile time Options:
377 * 0 - Disable and 1 - Enable
378 */
379#define DEBUG_QLA1280_INTR 0
380#define DEBUG_PRINT_NVRAM 0
381#define DEBUG_QLA1280 0
382
383/*
384 * The SGI VISWS is broken and doesn't support MMIO ;-(
385 */
386#ifdef CONFIG_X86_VISWS
387#define MEMORY_MAPPED_IO 0
388#else
389#define MEMORY_MAPPED_IO 1
390#endif
391
392#include "qla1280.h"
393
394#ifndef BITS_PER_LONG
395#error "BITS_PER_LONG not defined!"
396#endif
397#if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM
398#define QLA_64BIT_PTR 1
399#endif
400
401#ifdef QLA_64BIT_PTR
402#define pci_dma_hi32(a) ((a >> 16) >> 16)
403#else
404#define pci_dma_hi32(a) 0
405#endif
406#define pci_dma_lo32(a) (a & 0xffffffff)
407
408#define NVRAM_DELAY() udelay(500) /* 2 microseconds */
409
410#if defined(__ia64__) && !defined(ia64_platform_is)
411#define ia64_platform_is(foo) (!strcmp(x, platform_name))
412#endif
413
414
415#define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020)
416#define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \
417 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240)
418#define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \
419 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160)
420
421
422static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *);
423static void qla1280_remove_one(struct pci_dev *);
424
425/*
426 * QLogic Driver Support Function Prototypes.
427 */
428static void qla1280_done(struct scsi_qla_host *);
429static int qla1280_get_token(char *);
430static int qla1280_setup(char *s) __init;
431
432/*
433 * QLogic ISP1280 Hardware Support Function Prototypes.
434 */
435static int qla1280_load_firmware(struct scsi_qla_host *);
436static int qla1280_init_rings(struct scsi_qla_host *);
437static int qla1280_nvram_config(struct scsi_qla_host *);
438static int qla1280_mailbox_command(struct scsi_qla_host *,
439 uint8_t, uint16_t *);
440static int qla1280_bus_reset(struct scsi_qla_host *, int);
441static int qla1280_device_reset(struct scsi_qla_host *, int, int);
442static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int);
443static int qla1280_abort_isp(struct scsi_qla_host *);
444#ifdef QLA_64BIT_PTR
445static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *);
446#else
447static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *);
448#endif
449static void qla1280_nv_write(struct scsi_qla_host *, uint16_t);
450static void qla1280_poll(struct scsi_qla_host *);
451static void qla1280_reset_adapter(struct scsi_qla_host *);
452static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8);
453static void qla1280_isp_cmd(struct scsi_qla_host *);
454static void qla1280_isr(struct scsi_qla_host *, struct list_head *);
455static void qla1280_rst_aen(struct scsi_qla_host *);
456static void qla1280_status_entry(struct scsi_qla_host *, struct response *,
457 struct list_head *);
458static void qla1280_error_entry(struct scsi_qla_host *, struct response *,
459 struct list_head *);
460static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t);
461static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t);
462static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *);
463static request_t *qla1280_req_pkt(struct scsi_qla_host *);
464static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *,
465 unsigned int);
466static void qla1280_get_target_parameters(struct scsi_qla_host *,
467 struct scsi_device *);
468static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int);
469
470
471static struct qla_driver_setup driver_setup;
472
473/*
474 * convert scsi data direction to request_t control flags
475 */
476static inline uint16_t
477qla1280_data_direction(struct scsi_cmnd *cmnd)
478{
479 switch(cmnd->sc_data_direction) {
480 case DMA_FROM_DEVICE:
481 return BIT_5;
482 case DMA_TO_DEVICE:
483 return BIT_6;
484 case DMA_BIDIRECTIONAL:
485 return BIT_5 | BIT_6;
486 /*
487 * We could BUG() on default here if one of the four cases aren't
488 * met, but then again if we receive something like that from the
489 * SCSI layer we have more serious problems. This shuts up GCC.
490 */
491 case DMA_NONE:
492 default:
493 return 0;
494 }
495}
496
497#if DEBUG_QLA1280
498static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd);
499static void __qla1280_dump_buffer(char *, int);
500#endif
501
502
503/*
504 * insmod needs to find the variable and make it point to something
505 */
506#ifdef MODULE
507static char *qla1280;
508
509/* insmod qla1280 options=verbose" */
510module_param(qla1280, charp, 0);
511#else
512__setup("qla1280=", qla1280_setup);
513#endif
514
515
516/*
517 * We use the scsi_pointer structure that's included with each scsi_command
518 * to overlay our struct srb over it. qla1280_init() checks that a srb is not
519 * bigger than a scsi_pointer.
520 */
521
522#define CMD_SP(Cmnd) &Cmnd->SCp
523#define CMD_CDBLEN(Cmnd) Cmnd->cmd_len
524#define CMD_CDBP(Cmnd) Cmnd->cmnd
525#define CMD_SNSP(Cmnd) Cmnd->sense_buffer
526#define CMD_SNSLEN(Cmnd) SCSI_SENSE_BUFFERSIZE
527#define CMD_RESULT(Cmnd) Cmnd->result
528#define CMD_HANDLE(Cmnd) Cmnd->host_scribble
529#define CMD_REQUEST(Cmnd) Cmnd->request->cmd
530
531#define CMD_HOST(Cmnd) Cmnd->device->host
532#define SCSI_BUS_32(Cmnd) Cmnd->device->channel
533#define SCSI_TCN_32(Cmnd) Cmnd->device->id
534#define SCSI_LUN_32(Cmnd) Cmnd->device->lun
535
536
537/*****************************************/
538/* ISP Boards supported by this driver */
539/*****************************************/
540
541struct qla_boards {
542 char *name; /* Board ID String */
543 int numPorts; /* Number of SCSI ports */
544 int fw_index; /* index into qla1280_fw_tbl for firmware */
545};
546
547/* NOTE: the last argument in each entry is used to index ql1280_board_tbl */
548static struct pci_device_id qla1280_pci_tbl[] = {
549 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160,
550 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
551 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
552 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
553 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080,
554 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
555 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240,
556 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
557 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280,
558 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
559 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160,
560 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
561 {0,}
562};
563MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl);
564
565DEFINE_MUTEX(qla1280_firmware_mutex);
566
567struct qla_fw {
568 char *fwname;
569 const struct firmware *fw;
570};
571
572#define QL_NUM_FW_IMAGES 3
573
574struct qla_fw qla1280_fw_tbl[QL_NUM_FW_IMAGES] = {
575 {"qlogic/1040.bin", NULL}, /* image 0 */
576 {"qlogic/1280.bin", NULL}, /* image 1 */
577 {"qlogic/12160.bin", NULL}, /* image 2 */
578};
579
580/* NOTE: Order of boards in this table must match order in qla1280_pci_tbl */
581static struct qla_boards ql1280_board_tbl[] = {
582 {.name = "QLA12160", .numPorts = 2, .fw_index = 2},
583 {.name = "QLA1040" , .numPorts = 1, .fw_index = 0},
584 {.name = "QLA1080" , .numPorts = 1, .fw_index = 1},
585 {.name = "QLA1240" , .numPorts = 2, .fw_index = 1},
586 {.name = "QLA1280" , .numPorts = 2, .fw_index = 1},
587 {.name = "QLA10160", .numPorts = 1, .fw_index = 2},
588 {.name = " ", .numPorts = 0, .fw_index = -1},
589};
590
591static int qla1280_verbose = 1;
592
593#if DEBUG_QLA1280
594static int ql_debug_level = 1;
595#define dprintk(level, format, a...) \
596 do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0)
597#define qla1280_dump_buffer(level, buf, size) \
598 if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size)
599#define qla1280_print_scsi_cmd(level, cmd) \
600 if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd)
601#else
602#define ql_debug_level 0
603#define dprintk(level, format, a...) do{}while(0)
604#define qla1280_dump_buffer(a, b, c) do{}while(0)
605#define qla1280_print_scsi_cmd(a, b) do{}while(0)
606#endif
607
608#define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x);
609#define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x);
610#define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x);
611#define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x);
612
613
614static int qla1280_read_nvram(struct scsi_qla_host *ha)
615{
616 uint16_t *wptr;
617 uint8_t chksum;
618 int cnt, i;
619 struct nvram *nv;
620
621 ENTER("qla1280_read_nvram");
622
623 if (driver_setup.no_nvram)
624 return 1;
625
626 printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no);
627
628 wptr = (uint16_t *)&ha->nvram;
629 nv = &ha->nvram;
630 chksum = 0;
631 for (cnt = 0; cnt < 3; cnt++) {
632 *wptr = qla1280_get_nvram_word(ha, cnt);
633 chksum += *wptr & 0xff;
634 chksum += (*wptr >> 8) & 0xff;
635 wptr++;
636 }
637
638 if (nv->id0 != 'I' || nv->id1 != 'S' ||
639 nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) {
640 dprintk(2, "Invalid nvram ID or version!\n");
641 chksum = 1;
642 } else {
643 for (; cnt < sizeof(struct nvram); cnt++) {
644 *wptr = qla1280_get_nvram_word(ha, cnt);
645 chksum += *wptr & 0xff;
646 chksum += (*wptr >> 8) & 0xff;
647 wptr++;
648 }
649 }
650
651 dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x"
652 " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3,
653 nv->version);
654
655
656 if (chksum) {
657 if (!driver_setup.no_nvram)
658 printk(KERN_WARNING "scsi(%ld): Unable to identify or "
659 "validate NVRAM checksum, using default "
660 "settings\n", ha->host_no);
661 ha->nvram_valid = 0;
662 } else
663 ha->nvram_valid = 1;
664
665 /* The firmware interface is, um, interesting, in that the
666 * actual firmware image on the chip is little endian, thus,
667 * the process of taking that image to the CPU would end up
668 * little endian. However, the firmware interface requires it
669 * to be read a word (two bytes) at a time.
670 *
671 * The net result of this would be that the word (and
672 * doubleword) quantites in the firmware would be correct, but
673 * the bytes would be pairwise reversed. Since most of the
674 * firmware quantites are, in fact, bytes, we do an extra
675 * le16_to_cpu() in the firmware read routine.
676 *
677 * The upshot of all this is that the bytes in the firmware
678 * are in the correct places, but the 16 and 32 bit quantites
679 * are still in little endian format. We fix that up below by
680 * doing extra reverses on them */
681 nv->isp_parameter = cpu_to_le16(nv->isp_parameter);
682 nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w);
683 for(i = 0; i < MAX_BUSES; i++) {
684 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout);
685 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth);
686 }
687 dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n");
688 LEAVE("qla1280_read_nvram");
689
690 return chksum;
691}
692
693/**************************************************************************
694 * qla1280_info
695 * Return a string describing the driver.
696 **************************************************************************/
697static const char *
698qla1280_info(struct Scsi_Host *host)
699{
700 static char qla1280_scsi_name_buffer[125];
701 char *bp;
702 struct scsi_qla_host *ha;
703 struct qla_boards *bdp;
704
705 bp = &qla1280_scsi_name_buffer[0];
706 ha = (struct scsi_qla_host *)host->hostdata;
707 bdp = &ql1280_board_tbl[ha->devnum];
708 memset(bp, 0, sizeof(qla1280_scsi_name_buffer));
709
710 sprintf (bp,
711 "QLogic %s PCI to SCSI Host Adapter\n"
712 " Firmware version: %2d.%02d.%02d, Driver version %s",
713 &bdp->name[0], ha->fwver1, ha->fwver2, ha->fwver3,
714 QLA1280_VERSION);
715 return bp;
716}
717
718/**************************************************************************
719 * qla1280_queuecommand
720 * Queue a command to the controller.
721 *
722 * Note:
723 * The mid-level driver tries to ensures that queuecommand never gets invoked
724 * concurrently with itself or the interrupt handler (although the
725 * interrupt handler may call this routine as part of request-completion
726 * handling). Unfortunely, it sometimes calls the scheduler in interrupt
727 * context which is a big NO! NO!.
728 **************************************************************************/
729static int
730qla1280_queuecommand_lck(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
731{
732 struct Scsi_Host *host = cmd->device->host;
733 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
734 struct srb *sp = (struct srb *)CMD_SP(cmd);
735 int status;
736
737 cmd->scsi_done = fn;
738 sp->cmd = cmd;
739 sp->flags = 0;
740 sp->wait = NULL;
741 CMD_HANDLE(cmd) = (unsigned char *)NULL;
742
743 qla1280_print_scsi_cmd(5, cmd);
744
745#ifdef QLA_64BIT_PTR
746 /*
747 * Using 64 bit commands if the PCI bridge doesn't support it is a
748 * bit wasteful, however this should really only happen if one's
749 * PCI controller is completely broken, like the BCM1250. For
750 * sane hardware this is not an issue.
751 */
752 status = qla1280_64bit_start_scsi(ha, sp);
753#else
754 status = qla1280_32bit_start_scsi(ha, sp);
755#endif
756 return status;
757}
758
759static DEF_SCSI_QCMD(qla1280_queuecommand)
760
761enum action {
762 ABORT_COMMAND,
763 DEVICE_RESET,
764 BUS_RESET,
765 ADAPTER_RESET,
766};
767
768
769static void qla1280_mailbox_timeout(unsigned long __data)
770{
771 struct scsi_qla_host *ha = (struct scsi_qla_host *)__data;
772 struct device_reg __iomem *reg;
773 reg = ha->iobase;
774
775 ha->mailbox_out[0] = RD_REG_WORD(®->mailbox0);
776 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
777 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
778 RD_REG_WORD(®->ictrl), RD_REG_WORD(®->istatus));
779 complete(ha->mailbox_wait);
780}
781
782static int
783_qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp,
784 struct completion *wait)
785{
786 int status = FAILED;
787 struct scsi_cmnd *cmd = sp->cmd;
788
789 spin_unlock_irq(ha->host->host_lock);
790 wait_for_completion_timeout(wait, 4*HZ);
791 spin_lock_irq(ha->host->host_lock);
792 sp->wait = NULL;
793 if(CMD_HANDLE(cmd) == COMPLETED_HANDLE) {
794 status = SUCCESS;
795 (*cmd->scsi_done)(cmd);
796 }
797 return status;
798}
799
800static int
801qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp)
802{
803 DECLARE_COMPLETION_ONSTACK(wait);
804
805 sp->wait = &wait;
806 return _qla1280_wait_for_single_command(ha, sp, &wait);
807}
808
809static int
810qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target)
811{
812 int cnt;
813 int status;
814 struct srb *sp;
815 struct scsi_cmnd *cmd;
816
817 status = SUCCESS;
818
819 /*
820 * Wait for all commands with the designated bus/target
821 * to be completed by the firmware
822 */
823 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
824 sp = ha->outstanding_cmds[cnt];
825 if (sp) {
826 cmd = sp->cmd;
827
828 if (bus >= 0 && SCSI_BUS_32(cmd) != bus)
829 continue;
830 if (target >= 0 && SCSI_TCN_32(cmd) != target)
831 continue;
832
833 status = qla1280_wait_for_single_command(ha, sp);
834 if (status == FAILED)
835 break;
836 }
837 }
838 return status;
839}
840
841/**************************************************************************
842 * qla1280_error_action
843 * The function will attempt to perform a specified error action and
844 * wait for the results (or time out).
845 *
846 * Input:
847 * cmd = Linux SCSI command packet of the command that cause the
848 * bus reset.
849 * action = error action to take (see action_t)
850 *
851 * Returns:
852 * SUCCESS or FAILED
853 *
854 **************************************************************************/
855static int
856qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
857{
858 struct scsi_qla_host *ha;
859 int bus, target, lun;
860 struct srb *sp;
861 int i, found;
862 int result=FAILED;
863 int wait_for_bus=-1;
864 int wait_for_target = -1;
865 DECLARE_COMPLETION_ONSTACK(wait);
866
867 ENTER("qla1280_error_action");
868
869 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
870 sp = (struct srb *)CMD_SP(cmd);
871 bus = SCSI_BUS_32(cmd);
872 target = SCSI_TCN_32(cmd);
873 lun = SCSI_LUN_32(cmd);
874
875 dprintk(4, "error_action %i, istatus 0x%04x\n", action,
876 RD_REG_WORD(&ha->iobase->istatus));
877
878 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
879 RD_REG_WORD(&ha->iobase->host_cmd),
880 RD_REG_WORD(&ha->iobase->ictrl), jiffies);
881
882 if (qla1280_verbose)
883 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
884 "Handle=0x%p, action=0x%x\n",
885 ha->host_no, cmd, CMD_HANDLE(cmd), action);
886
887 /*
888 * Check to see if we have the command in the outstanding_cmds[]
889 * array. If not then it must have completed before this error
890 * action was initiated. If the error_action isn't ABORT_COMMAND
891 * then the driver must proceed with the requested action.
892 */
893 found = -1;
894 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
895 if (sp == ha->outstanding_cmds[i]) {
896 found = i;
897 sp->wait = &wait; /* we'll wait for it to complete */
898 break;
899 }
900 }
901
902 if (found < 0) { /* driver doesn't have command */
903 result = SUCCESS;
904 if (qla1280_verbose) {
905 printk(KERN_INFO
906 "scsi(%ld:%d:%d:%d): specified command has "
907 "already completed.\n", ha->host_no, bus,
908 target, lun);
909 }
910 }
911
912 switch (action) {
913
914 case ABORT_COMMAND:
915 dprintk(1, "qla1280: RISC aborting command\n");
916 /*
917 * The abort might fail due to race when the host_lock
918 * is released to issue the abort. As such, we
919 * don't bother to check the return status.
920 */
921 if (found >= 0)
922 qla1280_abort_command(ha, sp, found);
923 break;
924
925 case DEVICE_RESET:
926 if (qla1280_verbose)
927 printk(KERN_INFO
928 "scsi(%ld:%d:%d:%d): Queueing device reset "
929 "command.\n", ha->host_no, bus, target, lun);
930 if (qla1280_device_reset(ha, bus, target) == 0) {
931 /* issued device reset, set wait conditions */
932 wait_for_bus = bus;
933 wait_for_target = target;
934 }
935 break;
936
937 case BUS_RESET:
938 if (qla1280_verbose)
939 printk(KERN_INFO "qla1280(%ld:%d): Issued bus "
940 "reset.\n", ha->host_no, bus);
941 if (qla1280_bus_reset(ha, bus) == 0) {
942 /* issued bus reset, set wait conditions */
943 wait_for_bus = bus;
944 }
945 break;
946
947 case ADAPTER_RESET:
948 default:
949 if (qla1280_verbose) {
950 printk(KERN_INFO
951 "scsi(%ld): Issued ADAPTER RESET\n",
952 ha->host_no);
953 printk(KERN_INFO "scsi(%ld): I/O processing will "
954 "continue automatically\n", ha->host_no);
955 }
956 ha->flags.reset_active = 1;
957
958 if (qla1280_abort_isp(ha) != 0) { /* it's dead */
959 result = FAILED;
960 }
961
962 ha->flags.reset_active = 0;
963 }
964
965 /*
966 * At this point, the host_lock has been released and retaken
967 * by the issuance of the mailbox command.
968 * Wait for the command passed in by the mid-layer if it
969 * was found by the driver. It might have been returned
970 * between eh recovery steps, hence the check of the "found"
971 * variable.
972 */
973
974 if (found >= 0)
975 result = _qla1280_wait_for_single_command(ha, sp, &wait);
976
977 if (action == ABORT_COMMAND && result != SUCCESS) {
978 printk(KERN_WARNING
979 "scsi(%li:%i:%i:%i): "
980 "Unable to abort command!\n",
981 ha->host_no, bus, target, lun);
982 }
983
984 /*
985 * If the command passed in by the mid-layer has been
986 * returned by the board, then wait for any additional
987 * commands which are supposed to complete based upon
988 * the error action.
989 *
990 * All commands are unconditionally returned during a
991 * call to qla1280_abort_isp(), ADAPTER_RESET. No need
992 * to wait for them.
993 */
994 if (result == SUCCESS && wait_for_bus >= 0) {
995 result = qla1280_wait_for_pending_commands(ha,
996 wait_for_bus, wait_for_target);
997 }
998
999 dprintk(1, "RESET returning %d\n", result);
1000
1001 LEAVE("qla1280_error_action");
1002 return result;
1003}
1004
1005/**************************************************************************
1006 * qla1280_abort
1007 * Abort the specified SCSI command(s).
1008 **************************************************************************/
1009static int
1010qla1280_eh_abort(struct scsi_cmnd * cmd)
1011{
1012 int rc;
1013
1014 spin_lock_irq(cmd->device->host->host_lock);
1015 rc = qla1280_error_action(cmd, ABORT_COMMAND);
1016 spin_unlock_irq(cmd->device->host->host_lock);
1017
1018 return rc;
1019}
1020
1021/**************************************************************************
1022 * qla1280_device_reset
1023 * Reset the specified SCSI device
1024 **************************************************************************/
1025static int
1026qla1280_eh_device_reset(struct scsi_cmnd *cmd)
1027{
1028 int rc;
1029
1030 spin_lock_irq(cmd->device->host->host_lock);
1031 rc = qla1280_error_action(cmd, DEVICE_RESET);
1032 spin_unlock_irq(cmd->device->host->host_lock);
1033
1034 return rc;
1035}
1036
1037/**************************************************************************
1038 * qla1280_bus_reset
1039 * Reset the specified bus.
1040 **************************************************************************/
1041static int
1042qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
1043{
1044 int rc;
1045
1046 spin_lock_irq(cmd->device->host->host_lock);
1047 rc = qla1280_error_action(cmd, BUS_RESET);
1048 spin_unlock_irq(cmd->device->host->host_lock);
1049
1050 return rc;
1051}
1052
1053/**************************************************************************
1054 * qla1280_adapter_reset
1055 * Reset the specified adapter (both channels)
1056 **************************************************************************/
1057static int
1058qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
1059{
1060 int rc;
1061
1062 spin_lock_irq(cmd->device->host->host_lock);
1063 rc = qla1280_error_action(cmd, ADAPTER_RESET);
1064 spin_unlock_irq(cmd->device->host->host_lock);
1065
1066 return rc;
1067}
1068
1069static int
1070qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1071 sector_t capacity, int geom[])
1072{
1073 int heads, sectors, cylinders;
1074
1075 heads = 64;
1076 sectors = 32;
1077 cylinders = (unsigned long)capacity / (heads * sectors);
1078 if (cylinders > 1024) {
1079 heads = 255;
1080 sectors = 63;
1081 cylinders = (unsigned long)capacity / (heads * sectors);
1082 /* if (cylinders > 1023)
1083 cylinders = 1023; */
1084 }
1085
1086 geom[0] = heads;
1087 geom[1] = sectors;
1088 geom[2] = cylinders;
1089
1090 return 0;
1091}
1092
1093
1094/* disable risc and host interrupts */
1095static inline void
1096qla1280_disable_intrs(struct scsi_qla_host *ha)
1097{
1098 WRT_REG_WORD(&ha->iobase->ictrl, 0);
1099 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1100}
1101
1102/* enable risc and host interrupts */
1103static inline void
1104qla1280_enable_intrs(struct scsi_qla_host *ha)
1105{
1106 WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC));
1107 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1108}
1109
1110/**************************************************************************
1111 * qla1280_intr_handler
1112 * Handles the H/W interrupt
1113 **************************************************************************/
1114static irqreturn_t
1115qla1280_intr_handler(int irq, void *dev_id)
1116{
1117 struct scsi_qla_host *ha;
1118 struct device_reg __iomem *reg;
1119 u16 data;
1120 int handled = 0;
1121
1122 ENTER_INTR ("qla1280_intr_handler");
1123 ha = (struct scsi_qla_host *)dev_id;
1124
1125 spin_lock(ha->host->host_lock);
1126
1127 ha->isr_count++;
1128 reg = ha->iobase;
1129
1130 qla1280_disable_intrs(ha);
1131
1132 data = qla1280_debounce_register(®->istatus);
1133 /* Check for pending interrupts. */
1134 if (data & RISC_INT) {
1135 qla1280_isr(ha, &ha->done_q);
1136 handled = 1;
1137 }
1138 if (!list_empty(&ha->done_q))
1139 qla1280_done(ha);
1140
1141 spin_unlock(ha->host->host_lock);
1142
1143 qla1280_enable_intrs(ha);
1144
1145 LEAVE_INTR("qla1280_intr_handler");
1146 return IRQ_RETVAL(handled);
1147}
1148
1149
1150static int
1151qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
1152{
1153 uint8_t mr;
1154 uint16_t mb[MAILBOX_REGISTER_COUNT];
1155 struct nvram *nv;
1156 int status, lun;
1157
1158 nv = &ha->nvram;
1159
1160 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
1161
1162 /* Set Target Parameters. */
1163 mb[0] = MBC_SET_TARGET_PARAMETERS;
1164 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1165 mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8;
1166 mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9;
1167 mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10;
1168 mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11;
1169 mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12;
1170 mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13;
1171 mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14;
1172 mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15;
1173
1174 if (IS_ISP1x160(ha)) {
1175 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
1176 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8);
1177 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
1178 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
1179 mr |= BIT_6;
1180 } else {
1181 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8);
1182 }
1183 mb[3] |= nv->bus[bus].target[target].sync_period;
1184
1185 status = qla1280_mailbox_command(ha, mr, mb);
1186
1187 /* Set Device Queue Parameters. */
1188 for (lun = 0; lun < MAX_LUNS; lun++) {
1189 mb[0] = MBC_SET_DEVICE_QUEUE;
1190 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1191 mb[1] |= lun;
1192 mb[2] = nv->bus[bus].max_queue_depth;
1193 mb[3] = nv->bus[bus].target[target].execution_throttle;
1194 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1195 }
1196
1197 if (status)
1198 printk(KERN_WARNING "scsi(%ld:%i:%i): "
1199 "qla1280_set_target_parameters() failed\n",
1200 ha->host_no, bus, target);
1201 return status;
1202}
1203
1204
1205/**************************************************************************
1206 * qla1280_slave_configure
1207 *
1208 * Description:
1209 * Determines the queue depth for a given device. There are two ways
1210 * a queue depth can be obtained for a tagged queueing device. One
1211 * way is the default queue depth which is determined by whether
1212 * If it is defined, then it is used
1213 * as the default queue depth. Otherwise, we use either 4 or 8 as the
1214 * default queue depth (dependent on the number of hardware SCBs).
1215 **************************************************************************/
1216static int
1217qla1280_slave_configure(struct scsi_device *device)
1218{
1219 struct scsi_qla_host *ha;
1220 int default_depth = 3;
1221 int bus = device->channel;
1222 int target = device->id;
1223 int status = 0;
1224 struct nvram *nv;
1225 unsigned long flags;
1226
1227 ha = (struct scsi_qla_host *)device->host->hostdata;
1228 nv = &ha->nvram;
1229
1230 if (qla1280_check_for_dead_scsi_bus(ha, bus))
1231 return 1;
1232
1233 if (device->tagged_supported &&
1234 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
1235 scsi_adjust_queue_depth(device, MSG_ORDERED_TAG,
1236 ha->bus_settings[bus].hiwat);
1237 } else {
1238 scsi_adjust_queue_depth(device, 0, default_depth);
1239 }
1240
1241 nv->bus[bus].target[target].parameter.enable_sync = device->sdtr;
1242 nv->bus[bus].target[target].parameter.enable_wide = device->wdtr;
1243 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
1244
1245 if (driver_setup.no_sync ||
1246 (driver_setup.sync_mask &&
1247 (~driver_setup.sync_mask & (1 << target))))
1248 nv->bus[bus].target[target].parameter.enable_sync = 0;
1249 if (driver_setup.no_wide ||
1250 (driver_setup.wide_mask &&
1251 (~driver_setup.wide_mask & (1 << target))))
1252 nv->bus[bus].target[target].parameter.enable_wide = 0;
1253 if (IS_ISP1x160(ha)) {
1254 if (driver_setup.no_ppr ||
1255 (driver_setup.ppr_mask &&
1256 (~driver_setup.ppr_mask & (1 << target))))
1257 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
1258 }
1259
1260 spin_lock_irqsave(ha->host->host_lock, flags);
1261 if (nv->bus[bus].target[target].parameter.enable_sync)
1262 status = qla1280_set_target_parameters(ha, bus, target);
1263 qla1280_get_target_parameters(ha, device);
1264 spin_unlock_irqrestore(ha->host->host_lock, flags);
1265 return status;
1266}
1267
1268
1269/*
1270 * qla1280_done
1271 * Process completed commands.
1272 *
1273 * Input:
1274 * ha = adapter block pointer.
1275 */
1276static void
1277qla1280_done(struct scsi_qla_host *ha)
1278{
1279 struct srb *sp;
1280 struct list_head *done_q;
1281 int bus, target, lun;
1282 struct scsi_cmnd *cmd;
1283
1284 ENTER("qla1280_done");
1285
1286 done_q = &ha->done_q;
1287
1288 while (!list_empty(done_q)) {
1289 sp = list_entry(done_q->next, struct srb, list);
1290
1291 list_del(&sp->list);
1292
1293 cmd = sp->cmd;
1294 bus = SCSI_BUS_32(cmd);
1295 target = SCSI_TCN_32(cmd);
1296 lun = SCSI_LUN_32(cmd);
1297
1298 switch ((CMD_RESULT(cmd) >> 16)) {
1299 case DID_RESET:
1300 /* Issue marker command. */
1301 if (!ha->flags.abort_isp_active)
1302 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
1303 break;
1304 case DID_ABORT:
1305 sp->flags &= ~SRB_ABORT_PENDING;
1306 sp->flags |= SRB_ABORTED;
1307 break;
1308 default:
1309 break;
1310 }
1311
1312 /* Release memory used for this I/O */
1313 scsi_dma_unmap(cmd);
1314
1315 /* Call the mid-level driver interrupt handler */
1316 ha->actthreads--;
1317
1318 if (sp->wait == NULL)
1319 (*(cmd)->scsi_done)(cmd);
1320 else
1321 complete(sp->wait);
1322 }
1323 LEAVE("qla1280_done");
1324}
1325
1326/*
1327 * Translates a ISP error to a Linux SCSI error
1328 */
1329static int
1330qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
1331{
1332 int host_status = DID_ERROR;
1333 uint16_t comp_status = le16_to_cpu(sts->comp_status);
1334 uint16_t state_flags = le16_to_cpu(sts->state_flags);
1335 uint32_t residual_length = le32_to_cpu(sts->residual_length);
1336 uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
1337#if DEBUG_QLA1280_INTR
1338 static char *reason[] = {
1339 "DID_OK",
1340 "DID_NO_CONNECT",
1341 "DID_BUS_BUSY",
1342 "DID_TIME_OUT",
1343 "DID_BAD_TARGET",
1344 "DID_ABORT",
1345 "DID_PARITY",
1346 "DID_ERROR",
1347 "DID_RESET",
1348 "DID_BAD_INTR"
1349 };
1350#endif /* DEBUG_QLA1280_INTR */
1351
1352 ENTER("qla1280_return_status");
1353
1354#if DEBUG_QLA1280_INTR
1355 /*
1356 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
1357 comp_status);
1358 */
1359#endif
1360
1361 switch (comp_status) {
1362 case CS_COMPLETE:
1363 host_status = DID_OK;
1364 break;
1365
1366 case CS_INCOMPLETE:
1367 if (!(state_flags & SF_GOT_BUS))
1368 host_status = DID_NO_CONNECT;
1369 else if (!(state_flags & SF_GOT_TARGET))
1370 host_status = DID_BAD_TARGET;
1371 else if (!(state_flags & SF_SENT_CDB))
1372 host_status = DID_ERROR;
1373 else if (!(state_flags & SF_TRANSFERRED_DATA))
1374 host_status = DID_ERROR;
1375 else if (!(state_flags & SF_GOT_STATUS))
1376 host_status = DID_ERROR;
1377 else if (!(state_flags & SF_GOT_SENSE))
1378 host_status = DID_ERROR;
1379 break;
1380
1381 case CS_RESET:
1382 host_status = DID_RESET;
1383 break;
1384
1385 case CS_ABORTED:
1386 host_status = DID_ABORT;
1387 break;
1388
1389 case CS_TIMEOUT:
1390 host_status = DID_TIME_OUT;
1391 break;
1392
1393 case CS_DATA_OVERRUN:
1394 dprintk(2, "Data overrun 0x%x\n", residual_length);
1395 dprintk(2, "qla1280_return_status: response packet data\n");
1396 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
1397 host_status = DID_ERROR;
1398 break;
1399
1400 case CS_DATA_UNDERRUN:
1401 if ((scsi_bufflen(cp) - residual_length) <
1402 cp->underflow) {
1403 printk(KERN_WARNING
1404 "scsi: Underflow detected - retrying "
1405 "command.\n");
1406 host_status = DID_ERROR;
1407 } else {
1408 scsi_set_resid(cp, residual_length);
1409 host_status = DID_OK;
1410 }
1411 break;
1412
1413 default:
1414 host_status = DID_ERROR;
1415 break;
1416 }
1417
1418#if DEBUG_QLA1280_INTR
1419 dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
1420 reason[host_status], scsi_status);
1421#endif
1422
1423 LEAVE("qla1280_return_status");
1424
1425 return (scsi_status & 0xff) | (host_status << 16);
1426}
1427
1428/****************************************************************************/
1429/* QLogic ISP1280 Hardware Support Functions. */
1430/****************************************************************************/
1431
1432/*
1433 * qla1280_initialize_adapter
1434 * Initialize board.
1435 *
1436 * Input:
1437 * ha = adapter block pointer.
1438 *
1439 * Returns:
1440 * 0 = success
1441 */
1442static int __devinit
1443qla1280_initialize_adapter(struct scsi_qla_host *ha)
1444{
1445 struct device_reg __iomem *reg;
1446 int status;
1447 int bus;
1448 unsigned long flags;
1449
1450 ENTER("qla1280_initialize_adapter");
1451
1452 /* Clear adapter flags. */
1453 ha->flags.online = 0;
1454 ha->flags.disable_host_adapter = 0;
1455 ha->flags.reset_active = 0;
1456 ha->flags.abort_isp_active = 0;
1457
1458#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1459 if (ia64_platform_is("sn2")) {
1460 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
1461 "dual channel lockup workaround\n", ha->host_no);
1462 ha->flags.use_pci_vchannel = 1;
1463 driver_setup.no_nvram = 1;
1464 }
1465#endif
1466
1467 /* TODO: implement support for the 1040 nvram format */
1468 if (IS_ISP1040(ha))
1469 driver_setup.no_nvram = 1;
1470
1471 dprintk(1, "Configure PCI space for adapter...\n");
1472
1473 reg = ha->iobase;
1474
1475 /* Insure mailbox registers are free. */
1476 WRT_REG_WORD(®->semaphore, 0);
1477 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
1478 WRT_REG_WORD(®->host_cmd, HC_CLR_HOST_INT);
1479 RD_REG_WORD(®->host_cmd);
1480
1481 if (qla1280_read_nvram(ha)) {
1482 dprintk(2, "qla1280_initialize_adapter: failed to read "
1483 "NVRAM\n");
1484 }
1485
1486 /*
1487 * It's necessary to grab the spin here as qla1280_mailbox_command
1488 * needs to be able to drop the lock unconditionally to wait
1489 * for completion.
1490 */
1491 spin_lock_irqsave(ha->host->host_lock, flags);
1492
1493 status = qla1280_load_firmware(ha);
1494 if (status) {
1495 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
1496 ha->host_no);
1497 goto out;
1498 }
1499
1500 /* Setup adapter based on NVRAM parameters. */
1501 dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
1502 qla1280_nvram_config(ha);
1503
1504 if (ha->flags.disable_host_adapter) {
1505 status = 1;
1506 goto out;
1507 }
1508
1509 status = qla1280_init_rings(ha);
1510 if (status)
1511 goto out;
1512
1513 /* Issue SCSI reset, if we can't reset twice then bus is dead */
1514 for (bus = 0; bus < ha->ports; bus++) {
1515 if (!ha->bus_settings[bus].disable_scsi_reset &&
1516 qla1280_bus_reset(ha, bus) &&
1517 qla1280_bus_reset(ha, bus))
1518 ha->bus_settings[bus].scsi_bus_dead = 1;
1519 }
1520
1521 ha->flags.online = 1;
1522 out:
1523 spin_unlock_irqrestore(ha->host->host_lock, flags);
1524
1525 if (status)
1526 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
1527
1528 LEAVE("qla1280_initialize_adapter");
1529 return status;
1530}
1531
1532/*
1533 * qla1280_request_firmware
1534 * Acquire firmware for chip. Retain in memory
1535 * for error recovery.
1536 *
1537 * Input:
1538 * ha = adapter block pointer.
1539 *
1540 * Returns:
1541 * Pointer to firmware image or an error code
1542 * cast to pointer via ERR_PTR().
1543 */
1544static const struct firmware *
1545qla1280_request_firmware(struct scsi_qla_host *ha)
1546{
1547 const struct firmware *fw;
1548 int err;
1549 int index;
1550 char *fwname;
1551
1552 spin_unlock_irq(ha->host->host_lock);
1553 mutex_lock(&qla1280_firmware_mutex);
1554
1555 index = ql1280_board_tbl[ha->devnum].fw_index;
1556 fw = qla1280_fw_tbl[index].fw;
1557 if (fw)
1558 goto out;
1559
1560 fwname = qla1280_fw_tbl[index].fwname;
1561 err = request_firmware(&fw, fwname, &ha->pdev->dev);
1562
1563 if (err) {
1564 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
1565 fwname, err);
1566 fw = ERR_PTR(err);
1567 goto unlock;
1568 }
1569 if ((fw->size % 2) || (fw->size < 6)) {
1570 printk(KERN_ERR "Invalid firmware length %zu in image \"%s\"\n",
1571 fw->size, fwname);
1572 release_firmware(fw);
1573 fw = ERR_PTR(-EINVAL);
1574 goto unlock;
1575 }
1576
1577 qla1280_fw_tbl[index].fw = fw;
1578
1579 out:
1580 ha->fwver1 = fw->data[0];
1581 ha->fwver2 = fw->data[1];
1582 ha->fwver3 = fw->data[2];
1583 unlock:
1584 mutex_unlock(&qla1280_firmware_mutex);
1585 spin_lock_irq(ha->host->host_lock);
1586 return fw;
1587}
1588
1589/*
1590 * Chip diagnostics
1591 * Test chip for proper operation.
1592 *
1593 * Input:
1594 * ha = adapter block pointer.
1595 *
1596 * Returns:
1597 * 0 = success.
1598 */
1599static int
1600qla1280_chip_diag(struct scsi_qla_host *ha)
1601{
1602 uint16_t mb[MAILBOX_REGISTER_COUNT];
1603 struct device_reg __iomem *reg = ha->iobase;
1604 int status = 0;
1605 int cnt;
1606 uint16_t data;
1607 dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", ®->id_l);
1608
1609 dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
1610
1611 /* Soft reset chip and wait for it to finish. */
1612 WRT_REG_WORD(®->ictrl, ISP_RESET);
1613
1614 /*
1615 * We can't do a traditional PCI write flush here by reading
1616 * back the register. The card will not respond once the reset
1617 * is in action and we end up with a machine check exception
1618 * instead. Nothing to do but wait and hope for the best.
1619 * A portable pci_write_flush(pdev) call would be very useful here.
1620 */
1621 udelay(20);
1622 data = qla1280_debounce_register(®->ictrl);
1623 /*
1624 * Yet another QLogic gem ;-(
1625 */
1626 for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
1627 udelay(5);
1628 data = RD_REG_WORD(®->ictrl);
1629 }
1630
1631 if (!cnt)
1632 goto fail;
1633
1634 /* Reset register cleared by chip reset. */
1635 dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
1636
1637 WRT_REG_WORD(®->cfg_1, 0);
1638
1639 /* Reset RISC and disable BIOS which
1640 allows RISC to execute out of RAM. */
1641 WRT_REG_WORD(®->host_cmd, HC_RESET_RISC |
1642 HC_RELEASE_RISC | HC_DISABLE_BIOS);
1643
1644 RD_REG_WORD(®->id_l); /* Flush PCI write */
1645 data = qla1280_debounce_register(®->mailbox0);
1646
1647 /*
1648 * I *LOVE* this code!
1649 */
1650 for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
1651 udelay(5);
1652 data = RD_REG_WORD(®->mailbox0);
1653 }
1654
1655 if (!cnt)
1656 goto fail;
1657
1658 /* Check product ID of chip */
1659 dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
1660
1661 if (RD_REG_WORD(®->mailbox1) != PROD_ID_1 ||
1662 (RD_REG_WORD(®->mailbox2) != PROD_ID_2 &&
1663 RD_REG_WORD(®->mailbox2) != PROD_ID_2a) ||
1664 RD_REG_WORD(®->mailbox3) != PROD_ID_3 ||
1665 RD_REG_WORD(®->mailbox4) != PROD_ID_4) {
1666 printk(KERN_INFO "qla1280: Wrong product ID = "
1667 "0x%x,0x%x,0x%x,0x%x\n",
1668 RD_REG_WORD(®->mailbox1),
1669 RD_REG_WORD(®->mailbox2),
1670 RD_REG_WORD(®->mailbox3),
1671 RD_REG_WORD(®->mailbox4));
1672 goto fail;
1673 }
1674
1675 /*
1676 * Enable ints early!!!
1677 */
1678 qla1280_enable_intrs(ha);
1679
1680 dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
1681 /* Wrap Incoming Mailboxes Test. */
1682 mb[0] = MBC_MAILBOX_REGISTER_TEST;
1683 mb[1] = 0xAAAA;
1684 mb[2] = 0x5555;
1685 mb[3] = 0xAA55;
1686 mb[4] = 0x55AA;
1687 mb[5] = 0xA5A5;
1688 mb[6] = 0x5A5A;
1689 mb[7] = 0x2525;
1690
1691 status = qla1280_mailbox_command(ha, 0xff, mb);
1692 if (status)
1693 goto fail;
1694
1695 if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
1696 mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
1697 mb[7] != 0x2525) {
1698 printk(KERN_INFO "qla1280: Failed mbox check\n");
1699 goto fail;
1700 }
1701
1702 dprintk(3, "qla1280_chip_diag: exiting normally\n");
1703 return 0;
1704 fail:
1705 dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
1706 return status;
1707}
1708
1709static int
1710qla1280_load_firmware_pio(struct scsi_qla_host *ha)
1711{
1712 /* enter with host_lock acquired */
1713
1714 const struct firmware *fw;
1715 const __le16 *fw_data;
1716 uint16_t risc_address, risc_code_size;
1717 uint16_t mb[MAILBOX_REGISTER_COUNT], i;
1718 int err = 0;
1719
1720 fw = qla1280_request_firmware(ha);
1721 if (IS_ERR(fw))
1722 return PTR_ERR(fw);
1723
1724 fw_data = (const __le16 *)&fw->data[0];
1725 ha->fwstart = __le16_to_cpu(fw_data[2]);
1726
1727 /* Load RISC code. */
1728 risc_address = ha->fwstart;
1729 fw_data = (const __le16 *)&fw->data[6];
1730 risc_code_size = (fw->size - 6) / 2;
1731
1732 for (i = 0; i < risc_code_size; i++) {
1733 mb[0] = MBC_WRITE_RAM_WORD;
1734 mb[1] = risc_address + i;
1735 mb[2] = __le16_to_cpu(fw_data[i]);
1736
1737 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
1738 if (err) {
1739 printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
1740 ha->host_no);
1741 break;
1742 }
1743 }
1744
1745 return err;
1746}
1747
1748#define DUMP_IT_BACK 0 /* for debug of RISC loading */
1749static int
1750qla1280_load_firmware_dma(struct scsi_qla_host *ha)
1751{
1752 /* enter with host_lock acquired */
1753 const struct firmware *fw;
1754 const __le16 *fw_data;
1755 uint16_t risc_address, risc_code_size;
1756 uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
1757 int err = 0, num, i;
1758#if DUMP_IT_BACK
1759 uint8_t *sp, *tbuf;
1760 dma_addr_t p_tbuf;
1761
1762 tbuf = pci_alloc_consistent(ha->pdev, 8000, &p_tbuf);
1763 if (!tbuf)
1764 return -ENOMEM;
1765#endif
1766
1767 fw = qla1280_request_firmware(ha);
1768 if (IS_ERR(fw))
1769 return PTR_ERR(fw);
1770
1771 fw_data = (const __le16 *)&fw->data[0];
1772 ha->fwstart = __le16_to_cpu(fw_data[2]);
1773
1774 /* Load RISC code. */
1775 risc_address = ha->fwstart;
1776 fw_data = (const __le16 *)&fw->data[6];
1777 risc_code_size = (fw->size - 6) / 2;
1778
1779 dprintk(1, "%s: DMA RISC code (%i) words\n",
1780 __func__, risc_code_size);
1781
1782 num = 0;
1783 while (risc_code_size > 0) {
1784 int warn __attribute__((unused)) = 0;
1785
1786 cnt = 2000 >> 1;
1787
1788 if (cnt > risc_code_size)
1789 cnt = risc_code_size;
1790
1791 dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p),"
1792 "%d,%d(0x%x)\n",
1793 fw_data, cnt, num, risc_address);
1794 for(i = 0; i < cnt; i++)
1795 ((__le16 *)ha->request_ring)[i] = fw_data[i];
1796
1797 mb[0] = MBC_LOAD_RAM;
1798 mb[1] = risc_address;
1799 mb[4] = cnt;
1800 mb[3] = ha->request_dma & 0xffff;
1801 mb[2] = (ha->request_dma >> 16) & 0xffff;
1802 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
1803 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
1804 dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
1805 __func__, mb[0],
1806 (void *)(long)ha->request_dma,
1807 mb[6], mb[7], mb[2], mb[3]);
1808 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1809 BIT_1 | BIT_0, mb);
1810 if (err) {
1811 printk(KERN_ERR "scsi(%li): Failed to load partial "
1812 "segment of f\n", ha->host_no);
1813 goto out;
1814 }
1815
1816#if DUMP_IT_BACK
1817 mb[0] = MBC_DUMP_RAM;
1818 mb[1] = risc_address;
1819 mb[4] = cnt;
1820 mb[3] = p_tbuf & 0xffff;
1821 mb[2] = (p_tbuf >> 16) & 0xffff;
1822 mb[7] = pci_dma_hi32(p_tbuf) & 0xffff;
1823 mb[6] = pci_dma_hi32(p_tbuf) >> 16;
1824
1825 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1826 BIT_1 | BIT_0, mb);
1827 if (err) {
1828 printk(KERN_ERR
1829 "Failed to dump partial segment of f/w\n");
1830 goto out;
1831 }
1832 sp = (uint8_t *)ha->request_ring;
1833 for (i = 0; i < (cnt << 1); i++) {
1834 if (tbuf[i] != sp[i] && warn++ < 10) {
1835 printk(KERN_ERR "%s: FW compare error @ "
1836 "byte(0x%x) loop#=%x\n",
1837 __func__, i, num);
1838 printk(KERN_ERR "%s: FWbyte=%x "
1839 "FWfromChip=%x\n",
1840 __func__, sp[i], tbuf[i]);
1841 /*break; */
1842 }
1843 }
1844#endif
1845 risc_address += cnt;
1846 risc_code_size = risc_code_size - cnt;
1847 fw_data = fw_data + cnt;
1848 num++;
1849 }
1850
1851 out:
1852#if DUMP_IT_BACK
1853 pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf);
1854#endif
1855 return err;
1856}
1857
1858static int
1859qla1280_start_firmware(struct scsi_qla_host *ha)
1860{
1861 uint16_t mb[MAILBOX_REGISTER_COUNT];
1862 int err;
1863
1864 dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
1865 __func__);
1866
1867 /* Verify checksum of loaded RISC code. */
1868 mb[0] = MBC_VERIFY_CHECKSUM;
1869 /* mb[1] = ql12_risc_code_addr01; */
1870 mb[1] = ha->fwstart;
1871 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1872 if (err) {
1873 printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no);
1874 return err;
1875 }
1876
1877 /* Start firmware execution. */
1878 dprintk(1, "%s: start firmware running.\n", __func__);
1879 mb[0] = MBC_EXECUTE_FIRMWARE;
1880 mb[1] = ha->fwstart;
1881 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
1882 if (err) {
1883 printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
1884 ha->host_no);
1885 }
1886
1887 return err;
1888}
1889
1890static int
1891qla1280_load_firmware(struct scsi_qla_host *ha)
1892{
1893 /* enter with host_lock taken */
1894 int err;
1895
1896 err = qla1280_chip_diag(ha);
1897 if (err)
1898 goto out;
1899 if (IS_ISP1040(ha))
1900 err = qla1280_load_firmware_pio(ha);
1901 else
1902 err = qla1280_load_firmware_dma(ha);
1903 if (err)
1904 goto out;
1905 err = qla1280_start_firmware(ha);
1906 out:
1907 return err;
1908}
1909
1910/*
1911 * Initialize rings
1912 *
1913 * Input:
1914 * ha = adapter block pointer.
1915 * ha->request_ring = request ring virtual address
1916 * ha->response_ring = response ring virtual address
1917 * ha->request_dma = request ring physical address
1918 * ha->response_dma = response ring physical address
1919 *
1920 * Returns:
1921 * 0 = success.
1922 */
1923static int
1924qla1280_init_rings(struct scsi_qla_host *ha)
1925{
1926 uint16_t mb[MAILBOX_REGISTER_COUNT];
1927 int status = 0;
1928
1929 ENTER("qla1280_init_rings");
1930
1931 /* Clear outstanding commands array. */
1932 memset(ha->outstanding_cmds, 0,
1933 sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
1934
1935 /* Initialize request queue. */
1936 ha->request_ring_ptr = ha->request_ring;
1937 ha->req_ring_index = 0;
1938 ha->req_q_cnt = REQUEST_ENTRY_CNT;
1939 /* mb[0] = MBC_INIT_REQUEST_QUEUE; */
1940 mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
1941 mb[1] = REQUEST_ENTRY_CNT;
1942 mb[3] = ha->request_dma & 0xffff;
1943 mb[2] = (ha->request_dma >> 16) & 0xffff;
1944 mb[4] = 0;
1945 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
1946 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
1947 if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
1948 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1949 &mb[0]))) {
1950 /* Initialize response queue. */
1951 ha->response_ring_ptr = ha->response_ring;
1952 ha->rsp_ring_index = 0;
1953 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
1954 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
1955 mb[1] = RESPONSE_ENTRY_CNT;
1956 mb[3] = ha->response_dma & 0xffff;
1957 mb[2] = (ha->response_dma >> 16) & 0xffff;
1958 mb[5] = 0;
1959 mb[7] = pci_dma_hi32(ha->response_dma) & 0xffff;
1960 mb[6] = pci_dma_hi32(ha->response_dma) >> 16;
1961 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
1962 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1963 &mb[0]);
1964 }
1965
1966 if (status)
1967 dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
1968
1969 LEAVE("qla1280_init_rings");
1970 return status;
1971}
1972
1973static void
1974qla1280_print_settings(struct nvram *nv)
1975{
1976 dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
1977 nv->bus[0].config_1.initiator_id);
1978 dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
1979 nv->bus[1].config_1.initiator_id);
1980
1981 dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
1982 nv->bus[0].bus_reset_delay);
1983 dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
1984 nv->bus[1].bus_reset_delay);
1985
1986 dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
1987 dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
1988 dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
1989 dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
1990
1991 dprintk(1, "qla1280 : async data setup time[0]=%d\n",
1992 nv->bus[0].config_2.async_data_setup_time);
1993 dprintk(1, "qla1280 : async data setup time[1]=%d\n",
1994 nv->bus[1].config_2.async_data_setup_time);
1995
1996 dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
1997 nv->bus[0].config_2.req_ack_active_negation);
1998 dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
1999 nv->bus[1].config_2.req_ack_active_negation);
2000
2001 dprintk(1, "qla1280 : data line active negation[0]=%d\n",
2002 nv->bus[0].config_2.data_line_active_negation);
2003 dprintk(1, "qla1280 : data line active negation[1]=%d\n",
2004 nv->bus[1].config_2.data_line_active_negation);
2005
2006 dprintk(1, "qla1280 : disable loading risc code=%d\n",
2007 nv->cntr_flags_1.disable_loading_risc_code);
2008
2009 dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
2010 nv->cntr_flags_1.enable_64bit_addressing);
2011
2012 dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
2013 nv->bus[0].selection_timeout);
2014 dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
2015 nv->bus[1].selection_timeout);
2016
2017 dprintk(1, "qla1280 : max queue depth[0]=%d\n",
2018 nv->bus[0].max_queue_depth);
2019 dprintk(1, "qla1280 : max queue depth[1]=%d\n",
2020 nv->bus[1].max_queue_depth);
2021}
2022
2023static void
2024qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
2025{
2026 struct nvram *nv = &ha->nvram;
2027
2028 nv->bus[bus].target[target].parameter.renegotiate_on_error = 1;
2029 nv->bus[bus].target[target].parameter.auto_request_sense = 1;
2030 nv->bus[bus].target[target].parameter.tag_queuing = 1;
2031 nv->bus[bus].target[target].parameter.enable_sync = 1;
2032#if 1 /* Some SCSI Processors do not seem to like this */
2033 nv->bus[bus].target[target].parameter.enable_wide = 1;
2034#endif
2035 nv->bus[bus].target[target].execution_throttle =
2036 nv->bus[bus].max_queue_depth - 1;
2037 nv->bus[bus].target[target].parameter.parity_checking = 1;
2038 nv->bus[bus].target[target].parameter.disconnect_allowed = 1;
2039
2040 if (IS_ISP1x160(ha)) {
2041 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
2042 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
2043 nv->bus[bus].target[target].sync_period = 9;
2044 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
2045 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
2046 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
2047 } else {
2048 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
2049 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
2050 nv->bus[bus].target[target].sync_period = 10;
2051 }
2052}
2053
2054static void
2055qla1280_set_defaults(struct scsi_qla_host *ha)
2056{
2057 struct nvram *nv = &ha->nvram;
2058 int bus, target;
2059
2060 dprintk(1, "Using defaults for NVRAM: \n");
2061 memset(nv, 0, sizeof(struct nvram));
2062
2063 /* nv->cntr_flags_1.disable_loading_risc_code = 1; */
2064 nv->firmware_feature.f.enable_fast_posting = 1;
2065 nv->firmware_feature.f.disable_synchronous_backoff = 1;
2066 nv->termination.scsi_bus_0_control = 3;
2067 nv->termination.scsi_bus_1_control = 3;
2068 nv->termination.auto_term_support = 1;
2069
2070 /*
2071 * Set default FIFO magic - What appropriate values would be here
2072 * is unknown. This is what I have found testing with 12160s.
2073 *
2074 * Now, I would love the magic decoder ring for this one, the
2075 * header file provided by QLogic seems to be bogus or incomplete
2076 * at best.
2077 */
2078 nv->isp_config.burst_enable = 1;
2079 if (IS_ISP1040(ha))
2080 nv->isp_config.fifo_threshold |= 3;
2081 else
2082 nv->isp_config.fifo_threshold |= 4;
2083
2084 if (IS_ISP1x160(ha))
2085 nv->isp_parameter = 0x01; /* fast memory enable */
2086
2087 for (bus = 0; bus < MAX_BUSES; bus++) {
2088 nv->bus[bus].config_1.initiator_id = 7;
2089 nv->bus[bus].config_2.req_ack_active_negation = 1;
2090 nv->bus[bus].config_2.data_line_active_negation = 1;
2091 nv->bus[bus].selection_timeout = 250;
2092 nv->bus[bus].max_queue_depth = 32;
2093
2094 if (IS_ISP1040(ha)) {
2095 nv->bus[bus].bus_reset_delay = 3;
2096 nv->bus[bus].config_2.async_data_setup_time = 6;
2097 nv->bus[bus].retry_delay = 1;
2098 } else {
2099 nv->bus[bus].bus_reset_delay = 5;
2100 nv->bus[bus].config_2.async_data_setup_time = 8;
2101 }
2102
2103 for (target = 0; target < MAX_TARGETS; target++)
2104 qla1280_set_target_defaults(ha, bus, target);
2105 }
2106}
2107
2108static int
2109qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
2110{
2111 struct nvram *nv = &ha->nvram;
2112 uint16_t mb[MAILBOX_REGISTER_COUNT];
2113 int status, lun;
2114 uint16_t flag;
2115
2116 /* Set Target Parameters. */
2117 mb[0] = MBC_SET_TARGET_PARAMETERS;
2118 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2119
2120 /*
2121 * Do not enable sync and ppr for the initial INQUIRY run. We
2122 * enable this later if we determine the target actually
2123 * supports it.
2124 */
2125 mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE
2126 | TP_WIDE | TP_PARITY | TP_DISCONNECT);
2127
2128 if (IS_ISP1x160(ha))
2129 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
2130 else
2131 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
2132 mb[3] |= nv->bus[bus].target[target].sync_period;
2133 status = qla1280_mailbox_command(ha, 0x0f, mb);
2134
2135 /* Save Tag queuing enable flag. */
2136 flag = (BIT_0 << target);
2137 if (nv->bus[bus].target[target].parameter.tag_queuing)
2138 ha->bus_settings[bus].qtag_enables |= flag;
2139
2140 /* Save Device enable flag. */
2141 if (IS_ISP1x160(ha)) {
2142 if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
2143 ha->bus_settings[bus].device_enables |= flag;
2144 ha->bus_settings[bus].lun_disables |= 0;
2145 } else {
2146 if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
2147 ha->bus_settings[bus].device_enables |= flag;
2148 /* Save LUN disable flag. */
2149 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
2150 ha->bus_settings[bus].lun_disables |= flag;
2151 }
2152
2153 /* Set Device Queue Parameters. */
2154 for (lun = 0; lun < MAX_LUNS; lun++) {
2155 mb[0] = MBC_SET_DEVICE_QUEUE;
2156 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2157 mb[1] |= lun;
2158 mb[2] = nv->bus[bus].max_queue_depth;
2159 mb[3] = nv->bus[bus].target[target].execution_throttle;
2160 status |= qla1280_mailbox_command(ha, 0x0f, mb);
2161 }
2162
2163 return status;
2164}
2165
2166static int
2167qla1280_config_bus(struct scsi_qla_host *ha, int bus)
2168{
2169 struct nvram *nv = &ha->nvram;
2170 uint16_t mb[MAILBOX_REGISTER_COUNT];
2171 int target, status;
2172
2173 /* SCSI Reset Disable. */
2174 ha->bus_settings[bus].disable_scsi_reset =
2175 nv->bus[bus].config_1.scsi_reset_disable;
2176
2177 /* Initiator ID. */
2178 ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
2179 mb[0] = MBC_SET_INITIATOR_ID;
2180 mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
2181 ha->bus_settings[bus].id;
2182 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2183
2184 /* Reset Delay. */
2185 ha->bus_settings[bus].bus_reset_delay =
2186 nv->bus[bus].bus_reset_delay;
2187
2188 /* Command queue depth per device. */
2189 ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
2190
2191 /* Set target parameters. */
2192 for (target = 0; target < MAX_TARGETS; target++)
2193 status |= qla1280_config_target(ha, bus, target);
2194
2195 return status;
2196}
2197
2198static int
2199qla1280_nvram_config(struct scsi_qla_host *ha)
2200{
2201 struct device_reg __iomem *reg = ha->iobase;
2202 struct nvram *nv = &ha->nvram;
2203 int bus, target, status = 0;
2204 uint16_t mb[MAILBOX_REGISTER_COUNT];
2205
2206 ENTER("qla1280_nvram_config");
2207
2208 if (ha->nvram_valid) {
2209 /* Always force AUTO sense for LINUX SCSI */
2210 for (bus = 0; bus < MAX_BUSES; bus++)
2211 for (target = 0; target < MAX_TARGETS; target++) {
2212 nv->bus[bus].target[target].parameter.
2213 auto_request_sense = 1;
2214 }
2215 } else {
2216 qla1280_set_defaults(ha);
2217 }
2218
2219 qla1280_print_settings(nv);
2220
2221 /* Disable RISC load of firmware. */
2222 ha->flags.disable_risc_code_load =
2223 nv->cntr_flags_1.disable_loading_risc_code;
2224
2225 if (IS_ISP1040(ha)) {
2226 uint16_t hwrev, cfg1, cdma_conf, ddma_conf;
2227
2228 hwrev = RD_REG_WORD(®->cfg_0) & ISP_CFG0_HWMSK;
2229
2230 cfg1 = RD_REG_WORD(®->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6);
2231 cdma_conf = RD_REG_WORD(®->cdma_cfg);
2232 ddma_conf = RD_REG_WORD(®->ddma_cfg);
2233
2234 /* Busted fifo, says mjacob. */
2235 if (hwrev != ISP_CFG0_1040A)
2236 cfg1 |= nv->isp_config.fifo_threshold << 4;
2237
2238 cfg1 |= nv->isp_config.burst_enable << 2;
2239 WRT_REG_WORD(®->cfg_1, cfg1);
2240
2241 WRT_REG_WORD(®->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
2242 WRT_REG_WORD(®->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
2243 } else {
2244 uint16_t cfg1, term;
2245
2246 /* Set ISP hardware DMA burst */
2247 cfg1 = nv->isp_config.fifo_threshold << 4;
2248 cfg1 |= nv->isp_config.burst_enable << 2;
2249 /* Enable DMA arbitration on dual channel controllers */
2250 if (ha->ports > 1)
2251 cfg1 |= BIT_13;
2252 WRT_REG_WORD(®->cfg_1, cfg1);
2253
2254 /* Set SCSI termination. */
2255 WRT_REG_WORD(®->gpio_enable,
2256 BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0);
2257 term = nv->termination.scsi_bus_1_control;
2258 term |= nv->termination.scsi_bus_0_control << 2;
2259 term |= nv->termination.auto_term_support << 7;
2260 RD_REG_WORD(®->id_l); /* Flush PCI write */
2261 WRT_REG_WORD(®->gpio_data, term);
2262 }
2263 RD_REG_WORD(®->id_l); /* Flush PCI write */
2264
2265 /* ISP parameter word. */
2266 mb[0] = MBC_SET_SYSTEM_PARAMETER;
2267 mb[1] = nv->isp_parameter;
2268 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2269
2270 if (IS_ISP1x40(ha)) {
2271 /* clock rate - for qla1240 and older, only */
2272 mb[0] = MBC_SET_CLOCK_RATE;
2273 mb[1] = 40;
2274 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2275 }
2276
2277 /* Firmware feature word. */
2278 mb[0] = MBC_SET_FIRMWARE_FEATURES;
2279 mb[1] = nv->firmware_feature.f.enable_fast_posting;
2280 mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1;
2281 mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5;
2282#if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2)
2283 if (ia64_platform_is("sn2")) {
2284 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
2285 "workaround\n", ha->host_no);
2286 mb[1] |= nv->firmware_feature.f.unused_9 << 9; /* XXX */
2287 }
2288#endif
2289 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2290
2291 /* Retry count and delay. */
2292 mb[0] = MBC_SET_RETRY_COUNT;
2293 mb[1] = nv->bus[0].retry_count;
2294 mb[2] = nv->bus[0].retry_delay;
2295 mb[6] = nv->bus[1].retry_count;
2296 mb[7] = nv->bus[1].retry_delay;
2297 status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
2298 BIT_1 | BIT_0, &mb[0]);
2299
2300 /* ASYNC data setup time. */
2301 mb[0] = MBC_SET_ASYNC_DATA_SETUP;
2302 mb[1] = nv->bus[0].config_2.async_data_setup_time;
2303 mb[2] = nv->bus[1].config_2.async_data_setup_time;
2304 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2305
2306 /* Active negation states. */
2307 mb[0] = MBC_SET_ACTIVE_NEGATION;
2308 mb[1] = 0;
2309 if (nv->bus[0].config_2.req_ack_active_negation)
2310 mb[1] |= BIT_5;
2311 if (nv->bus[0].config_2.data_line_active_negation)
2312 mb[1] |= BIT_4;
2313 mb[2] = 0;
2314 if (nv->bus[1].config_2.req_ack_active_negation)
2315 mb[2] |= BIT_5;
2316 if (nv->bus[1].config_2.data_line_active_negation)
2317 mb[2] |= BIT_4;
2318 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2319
2320 mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
2321 mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */
2322 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2323
2324 /* thingy */
2325 mb[0] = MBC_SET_PCI_CONTROL;
2326 mb[1] = BIT_1; /* Data DMA Channel Burst Enable */
2327 mb[2] = BIT_1; /* Command DMA Channel Burst Enable */
2328 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2329
2330 mb[0] = MBC_SET_TAG_AGE_LIMIT;
2331 mb[1] = 8;
2332 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2333
2334 /* Selection timeout. */
2335 mb[0] = MBC_SET_SELECTION_TIMEOUT;
2336 mb[1] = nv->bus[0].selection_timeout;
2337 mb[2] = nv->bus[1].selection_timeout;
2338 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2339
2340 for (bus = 0; bus < ha->ports; bus++)
2341 status |= qla1280_config_bus(ha, bus);
2342
2343 if (status)
2344 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
2345
2346 LEAVE("qla1280_nvram_config");
2347 return status;
2348}
2349
2350/*
2351 * Get NVRAM data word
2352 * Calculates word position in NVRAM and calls request routine to
2353 * get the word from NVRAM.
2354 *
2355 * Input:
2356 * ha = adapter block pointer.
2357 * address = NVRAM word address.
2358 *
2359 * Returns:
2360 * data word.
2361 */
2362static uint16_t
2363qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
2364{
2365 uint32_t nv_cmd;
2366 uint16_t data;
2367
2368 nv_cmd = address << 16;
2369 nv_cmd |= NV_READ_OP;
2370
2371 data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
2372
2373 dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
2374 "0x%x", data);
2375
2376 return data;
2377}
2378
2379/*
2380 * NVRAM request
2381 * Sends read command to NVRAM and gets data from NVRAM.
2382 *
2383 * Input:
2384 * ha = adapter block pointer.
2385 * nv_cmd = Bit 26 = start bit
2386 * Bit 25, 24 = opcode
2387 * Bit 23-16 = address
2388 * Bit 15-0 = write data
2389 *
2390 * Returns:
2391 * data word.
2392 */
2393static uint16_t
2394qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
2395{
2396 struct device_reg __iomem *reg = ha->iobase;
2397 int cnt;
2398 uint16_t data = 0;
2399 uint16_t reg_data;
2400
2401 /* Send command to NVRAM. */
2402
2403 nv_cmd <<= 5;
2404 for (cnt = 0; cnt < 11; cnt++) {
2405 if (nv_cmd & BIT_31)
2406 qla1280_nv_write(ha, NV_DATA_OUT);
2407 else
2408 qla1280_nv_write(ha, 0);
2409 nv_cmd <<= 1;
2410 }
2411
2412 /* Read data from NVRAM. */
2413
2414 for (cnt = 0; cnt < 16; cnt++) {
2415 WRT_REG_WORD(®->nvram, (NV_SELECT | NV_CLOCK));
2416 RD_REG_WORD(®->id_l); /* Flush PCI write */
2417 NVRAM_DELAY();
2418 data <<= 1;
2419 reg_data = RD_REG_WORD(®->nvram);
2420 if (reg_data & NV_DATA_IN)
2421 data |= BIT_0;
2422 WRT_REG_WORD(®->nvram, NV_SELECT);
2423 RD_REG_WORD(®->id_l); /* Flush PCI write */
2424 NVRAM_DELAY();
2425 }
2426
2427 /* Deselect chip. */
2428
2429 WRT_REG_WORD(®->nvram, NV_DESELECT);
2430 RD_REG_WORD(®->id_l); /* Flush PCI write */
2431 NVRAM_DELAY();
2432
2433 return data;
2434}
2435
2436static void
2437qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
2438{
2439 struct device_reg __iomem *reg = ha->iobase;
2440
2441 WRT_REG_WORD(®->nvram, data | NV_SELECT);
2442 RD_REG_WORD(®->id_l); /* Flush PCI write */
2443 NVRAM_DELAY();
2444 WRT_REG_WORD(®->nvram, data | NV_SELECT | NV_CLOCK);
2445 RD_REG_WORD(®->id_l); /* Flush PCI write */
2446 NVRAM_DELAY();
2447 WRT_REG_WORD(®->nvram, data | NV_SELECT);
2448 RD_REG_WORD(®->id_l); /* Flush PCI write */
2449 NVRAM_DELAY();
2450}
2451
2452/*
2453 * Mailbox Command
2454 * Issue mailbox command and waits for completion.
2455 *
2456 * Input:
2457 * ha = adapter block pointer.
2458 * mr = mailbox registers to load.
2459 * mb = data pointer for mailbox registers.
2460 *
2461 * Output:
2462 * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
2463 *
2464 * Returns:
2465 * 0 = success
2466 */
2467static int
2468qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
2469{
2470 struct device_reg __iomem *reg = ha->iobase;
2471 int status = 0;
2472 int cnt;
2473 uint16_t *optr, *iptr;
2474 uint16_t __iomem *mptr;
2475 uint16_t data;
2476 DECLARE_COMPLETION_ONSTACK(wait);
2477 struct timer_list timer;
2478
2479 ENTER("qla1280_mailbox_command");
2480
2481 if (ha->mailbox_wait) {
2482 printk(KERN_ERR "Warning mailbox wait already in use!\n");
2483 }
2484 ha->mailbox_wait = &wait;
2485
2486 /*
2487 * We really should start out by verifying that the mailbox is
2488 * available before starting sending the command data
2489 */
2490 /* Load mailbox registers. */
2491 mptr = (uint16_t __iomem *) ®->mailbox0;
2492 iptr = mb;
2493 for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
2494 if (mr & BIT_0) {
2495 WRT_REG_WORD(mptr, (*iptr));
2496 }
2497
2498 mr >>= 1;
2499 mptr++;
2500 iptr++;
2501 }
2502
2503 /* Issue set host interrupt command. */
2504
2505 /* set up a timer just in case we're really jammed */
2506 init_timer(&timer);
2507 timer.expires = jiffies + 20*HZ;
2508 timer.data = (unsigned long)ha;
2509 timer.function = qla1280_mailbox_timeout;
2510 add_timer(&timer);
2511
2512 spin_unlock_irq(ha->host->host_lock);
2513 WRT_REG_WORD(®->host_cmd, HC_SET_HOST_INT);
2514 data = qla1280_debounce_register(®->istatus);
2515
2516 wait_for_completion(&wait);
2517 del_timer_sync(&timer);
2518
2519 spin_lock_irq(ha->host->host_lock);
2520
2521 ha->mailbox_wait = NULL;
2522
2523 /* Check for mailbox command timeout. */
2524 if (ha->mailbox_out[0] != MBS_CMD_CMP) {
2525 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
2526 "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
2527 "0x%04x\n",
2528 mb[0], ha->mailbox_out[0], RD_REG_WORD(®->istatus));
2529 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
2530 RD_REG_WORD(®->mailbox0), RD_REG_WORD(®->mailbox1),
2531 RD_REG_WORD(®->mailbox2), RD_REG_WORD(®->mailbox3));
2532 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
2533 RD_REG_WORD(®->mailbox4), RD_REG_WORD(®->mailbox5),
2534 RD_REG_WORD(®->mailbox6), RD_REG_WORD(®->mailbox7));
2535 status = 1;
2536 }
2537
2538 /* Load return mailbox registers. */
2539 optr = mb;
2540 iptr = (uint16_t *) &ha->mailbox_out[0];
2541 mr = MAILBOX_REGISTER_COUNT;
2542 memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
2543
2544 if (ha->flags.reset_marker)
2545 qla1280_rst_aen(ha);
2546
2547 if (status)
2548 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
2549 "0x%x ****\n", mb[0]);
2550
2551 LEAVE("qla1280_mailbox_command");
2552 return status;
2553}
2554
2555/*
2556 * qla1280_poll
2557 * Polls ISP for interrupts.
2558 *
2559 * Input:
2560 * ha = adapter block pointer.
2561 */
2562static void
2563qla1280_poll(struct scsi_qla_host *ha)
2564{
2565 struct device_reg __iomem *reg = ha->iobase;
2566 uint16_t data;
2567 LIST_HEAD(done_q);
2568
2569 /* ENTER("qla1280_poll"); */
2570
2571 /* Check for pending interrupts. */
2572 data = RD_REG_WORD(®->istatus);
2573 if (data & RISC_INT)
2574 qla1280_isr(ha, &done_q);
2575
2576 if (!ha->mailbox_wait) {
2577 if (ha->flags.reset_marker)
2578 qla1280_rst_aen(ha);
2579 }
2580
2581 if (!list_empty(&done_q))
2582 qla1280_done(ha);
2583
2584 /* LEAVE("qla1280_poll"); */
2585}
2586
2587/*
2588 * qla1280_bus_reset
2589 * Issue SCSI bus reset.
2590 *
2591 * Input:
2592 * ha = adapter block pointer.
2593 * bus = SCSI bus number.
2594 *
2595 * Returns:
2596 * 0 = success
2597 */
2598static int
2599qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
2600{
2601 uint16_t mb[MAILBOX_REGISTER_COUNT];
2602 uint16_t reset_delay;
2603 int status;
2604
2605 dprintk(3, "qla1280_bus_reset: entered\n");
2606
2607 if (qla1280_verbose)
2608 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
2609 ha->host_no, bus);
2610
2611 reset_delay = ha->bus_settings[bus].bus_reset_delay;
2612 mb[0] = MBC_BUS_RESET;
2613 mb[1] = reset_delay;
2614 mb[2] = (uint16_t) bus;
2615 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2616
2617 if (status) {
2618 if (ha->bus_settings[bus].failed_reset_count > 2)
2619 ha->bus_settings[bus].scsi_bus_dead = 1;
2620 ha->bus_settings[bus].failed_reset_count++;
2621 } else {
2622 spin_unlock_irq(ha->host->host_lock);
2623 ssleep(reset_delay);
2624 spin_lock_irq(ha->host->host_lock);
2625
2626 ha->bus_settings[bus].scsi_bus_dead = 0;
2627 ha->bus_settings[bus].failed_reset_count = 0;
2628 ha->bus_settings[bus].reset_marker = 0;
2629 /* Issue marker command. */
2630 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
2631 }
2632
2633 /*
2634 * We should probably call qla1280_set_target_parameters()
2635 * here as well for all devices on the bus.
2636 */
2637
2638 if (status)
2639 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
2640 else
2641 dprintk(3, "qla1280_bus_reset: exiting normally\n");
2642
2643 return status;
2644}
2645
2646/*
2647 * qla1280_device_reset
2648 * Issue bus device reset message to the target.
2649 *
2650 * Input:
2651 * ha = adapter block pointer.
2652 * bus = SCSI BUS number.
2653 * target = SCSI ID.
2654 *
2655 * Returns:
2656 * 0 = success
2657 */
2658static int
2659qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
2660{
2661 uint16_t mb[MAILBOX_REGISTER_COUNT];
2662 int status;
2663
2664 ENTER("qla1280_device_reset");
2665
2666 mb[0] = MBC_ABORT_TARGET;
2667 mb[1] = (bus ? (target | BIT_7) : target) << 8;
2668 mb[2] = 1;
2669 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2670
2671 /* Issue marker command. */
2672 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
2673
2674 if (status)
2675 dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
2676
2677 LEAVE("qla1280_device_reset");
2678 return status;
2679}
2680
2681/*
2682 * qla1280_abort_command
2683 * Abort command aborts a specified IOCB.
2684 *
2685 * Input:
2686 * ha = adapter block pointer.
2687 * sp = SB structure pointer.
2688 *
2689 * Returns:
2690 * 0 = success
2691 */
2692static int
2693qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
2694{
2695 uint16_t mb[MAILBOX_REGISTER_COUNT];
2696 unsigned int bus, target, lun;
2697 int status;
2698
2699 ENTER("qla1280_abort_command");
2700
2701 bus = SCSI_BUS_32(sp->cmd);
2702 target = SCSI_TCN_32(sp->cmd);
2703 lun = SCSI_LUN_32(sp->cmd);
2704
2705 sp->flags |= SRB_ABORT_PENDING;
2706
2707 mb[0] = MBC_ABORT_COMMAND;
2708 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2709 mb[2] = handle >> 16;
2710 mb[3] = handle & 0xffff;
2711 status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
2712
2713 if (status) {
2714 dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
2715 sp->flags &= ~SRB_ABORT_PENDING;
2716 }
2717
2718
2719 LEAVE("qla1280_abort_command");
2720 return status;
2721}
2722
2723/*
2724 * qla1280_reset_adapter
2725 * Reset adapter.
2726 *
2727 * Input:
2728 * ha = adapter block pointer.
2729 */
2730static void
2731qla1280_reset_adapter(struct scsi_qla_host *ha)
2732{
2733 struct device_reg __iomem *reg = ha->iobase;
2734
2735 ENTER("qla1280_reset_adapter");
2736
2737 /* Disable ISP chip */
2738 ha->flags.online = 0;
2739 WRT_REG_WORD(®->ictrl, ISP_RESET);
2740 WRT_REG_WORD(®->host_cmd,
2741 HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
2742 RD_REG_WORD(®->id_l); /* Flush PCI write */
2743
2744 LEAVE("qla1280_reset_adapter");
2745}
2746
2747/*
2748 * Issue marker command.
2749 * Function issues marker IOCB.
2750 *
2751 * Input:
2752 * ha = adapter block pointer.
2753 * bus = SCSI BUS number
2754 * id = SCSI ID
2755 * lun = SCSI LUN
2756 * type = marker modifier
2757 */
2758static void
2759qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
2760{
2761 struct mrk_entry *pkt;
2762
2763 ENTER("qla1280_marker");
2764
2765 /* Get request packet. */
2766 if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
2767 pkt->entry_type = MARKER_TYPE;
2768 pkt->lun = (uint8_t) lun;
2769 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
2770 pkt->modifier = type;
2771 pkt->entry_status = 0;
2772
2773 /* Issue command to ISP */
2774 qla1280_isp_cmd(ha);
2775 }
2776
2777 LEAVE("qla1280_marker");
2778}
2779
2780
2781/*
2782 * qla1280_64bit_start_scsi
2783 * The start SCSI is responsible for building request packets on
2784 * request ring and modifying ISP input pointer.
2785 *
2786 * Input:
2787 * ha = adapter block pointer.
2788 * sp = SB structure pointer.
2789 *
2790 * Returns:
2791 * 0 = success, was able to issue command.
2792 */
2793#ifdef QLA_64BIT_PTR
2794static int
2795qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2796{
2797 struct device_reg __iomem *reg = ha->iobase;
2798 struct scsi_cmnd *cmd = sp->cmd;
2799 cmd_a64_entry_t *pkt;
2800 __le32 *dword_ptr;
2801 dma_addr_t dma_handle;
2802 int status = 0;
2803 int cnt;
2804 int req_cnt;
2805 int seg_cnt;
2806 u8 dir;
2807
2808 ENTER("qla1280_64bit_start_scsi:");
2809
2810 /* Calculate number of entries and segments required. */
2811 req_cnt = 1;
2812 seg_cnt = scsi_dma_map(cmd);
2813 if (seg_cnt > 0) {
2814 if (seg_cnt > 2) {
2815 req_cnt += (seg_cnt - 2) / 5;
2816 if ((seg_cnt - 2) % 5)
2817 req_cnt++;
2818 }
2819 } else if (seg_cnt < 0) {
2820 status = 1;
2821 goto out;
2822 }
2823
2824 if ((req_cnt + 2) >= ha->req_q_cnt) {
2825 /* Calculate number of free request entries. */
2826 cnt = RD_REG_WORD(®->mailbox4);
2827 if (ha->req_ring_index < cnt)
2828 ha->req_q_cnt = cnt - ha->req_ring_index;
2829 else
2830 ha->req_q_cnt =
2831 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
2832 }
2833
2834 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
2835 ha->req_q_cnt, seg_cnt);
2836
2837 /* If room for request in request ring. */
2838 if ((req_cnt + 2) >= ha->req_q_cnt) {
2839 status = SCSI_MLQUEUE_HOST_BUSY;
2840 dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt="
2841 "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
2842 req_cnt);
2843 goto out;
2844 }
2845
2846 /* Check for room in outstanding command list. */
2847 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
2848 ha->outstanding_cmds[cnt] != NULL; cnt++);
2849
2850 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
2851 status = SCSI_MLQUEUE_HOST_BUSY;
2852 dprintk(2, "qla1280_start_scsi: NO ROOM IN "
2853 "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
2854 goto out;
2855 }
2856
2857 ha->outstanding_cmds[cnt] = sp;
2858 ha->req_q_cnt -= req_cnt;
2859 CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
2860
2861 dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
2862 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
2863 dprintk(2, " bus %i, target %i, lun %i\n",
2864 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2865 qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
2866
2867 /*
2868 * Build command packet.
2869 */
2870 pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
2871
2872 pkt->entry_type = COMMAND_A64_TYPE;
2873 pkt->entry_count = (uint8_t) req_cnt;
2874 pkt->sys_define = (uint8_t) ha->req_ring_index;
2875 pkt->entry_status = 0;
2876 pkt->handle = cpu_to_le32(cnt);
2877
2878 /* Zero out remaining portion of packet. */
2879 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
2880
2881 /* Set ISP command timeout. */
2882 pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ);
2883
2884 /* Set device target ID and LUN */
2885 pkt->lun = SCSI_LUN_32(cmd);
2886 pkt->target = SCSI_BUS_32(cmd) ?
2887 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
2888
2889 /* Enable simple tag queuing if device supports it. */
2890 if (cmd->device->simple_tags)
2891 pkt->control_flags |= cpu_to_le16(BIT_3);
2892
2893 /* Load SCSI command packet. */
2894 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
2895 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
2896 /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
2897
2898 /* Set transfer direction. */
2899 dir = qla1280_data_direction(cmd);
2900 pkt->control_flags |= cpu_to_le16(dir);
2901
2902 /* Set total data segment count. */
2903 pkt->dseg_count = cpu_to_le16(seg_cnt);
2904
2905 /*
2906 * Load data segments.
2907 */
2908 if (seg_cnt) { /* If data transfer. */
2909 struct scatterlist *sg, *s;
2910 int remseg = seg_cnt;
2911
2912 sg = scsi_sglist(cmd);
2913
2914 /* Setup packet address segment pointer. */
2915 dword_ptr = (u32 *)&pkt->dseg_0_address;
2916
2917 /* Load command entry data segments. */
2918 for_each_sg(sg, s, seg_cnt, cnt) {
2919 if (cnt == 2)
2920 break;
2921
2922 dma_handle = sg_dma_address(s);
2923#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2924 if (ha->flags.use_pci_vchannel)
2925 sn_pci_set_vchan(ha->pdev,
2926 (unsigned long *)&dma_handle,
2927 SCSI_BUS_32(cmd));
2928#endif
2929 *dword_ptr++ =
2930 cpu_to_le32(pci_dma_lo32(dma_handle));
2931 *dword_ptr++ =
2932 cpu_to_le32(pci_dma_hi32(dma_handle));
2933 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
2934 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
2935 cpu_to_le32(pci_dma_hi32(dma_handle)),
2936 cpu_to_le32(pci_dma_lo32(dma_handle)),
2937 cpu_to_le32(sg_dma_len(sg_next(s))));
2938 remseg--;
2939 }
2940 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
2941 "command packet data - b %i, t %i, l %i \n",
2942 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
2943 SCSI_LUN_32(cmd));
2944 qla1280_dump_buffer(5, (char *)pkt,
2945 REQUEST_ENTRY_SIZE);
2946
2947 /*
2948 * Build continuation packets.
2949 */
2950 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
2951 "remains\n", seg_cnt);
2952
2953 while (remseg > 0) {
2954 /* Update sg start */
2955 sg = s;
2956 /* Adjust ring index. */
2957 ha->req_ring_index++;
2958 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2959 ha->req_ring_index = 0;
2960 ha->request_ring_ptr =
2961 ha->request_ring;
2962 } else
2963 ha->request_ring_ptr++;
2964
2965 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
2966
2967 /* Zero out packet. */
2968 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2969
2970 /* Load packet defaults. */
2971 ((struct cont_a64_entry *) pkt)->entry_type =
2972 CONTINUE_A64_TYPE;
2973 ((struct cont_a64_entry *) pkt)->entry_count = 1;
2974 ((struct cont_a64_entry *) pkt)->sys_define =
2975 (uint8_t)ha->req_ring_index;
2976 /* Setup packet address segment pointer. */
2977 dword_ptr =
2978 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
2979
2980 /* Load continuation entry data segments. */
2981 for_each_sg(sg, s, remseg, cnt) {
2982 if (cnt == 5)
2983 break;
2984 dma_handle = sg_dma_address(s);
2985#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2986 if (ha->flags.use_pci_vchannel)
2987 sn_pci_set_vchan(ha->pdev,
2988 (unsigned long *)&dma_handle,
2989 SCSI_BUS_32(cmd));
2990#endif
2991 *dword_ptr++ =
2992 cpu_to_le32(pci_dma_lo32(dma_handle));
2993 *dword_ptr++ =
2994 cpu_to_le32(pci_dma_hi32(dma_handle));
2995 *dword_ptr++ =
2996 cpu_to_le32(sg_dma_len(s));
2997 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
2998 cpu_to_le32(pci_dma_hi32(dma_handle)),
2999 cpu_to_le32(pci_dma_lo32(dma_handle)),
3000 cpu_to_le32(sg_dma_len(s)));
3001 }
3002 remseg -= cnt;
3003 dprintk(5, "qla1280_64bit_start_scsi: "
3004 "continuation packet data - b %i, t "
3005 "%i, l %i \n", SCSI_BUS_32(cmd),
3006 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3007 qla1280_dump_buffer(5, (char *)pkt,
3008 REQUEST_ENTRY_SIZE);
3009 }
3010 } else { /* No data transfer */
3011 dprintk(5, "qla1280_64bit_start_scsi: No data, command "
3012 "packet data - b %i, t %i, l %i \n",
3013 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3014 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3015 }
3016 /* Adjust ring index. */
3017 ha->req_ring_index++;
3018 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3019 ha->req_ring_index = 0;
3020 ha->request_ring_ptr = ha->request_ring;
3021 } else
3022 ha->request_ring_ptr++;
3023
3024 /* Set chip new ring index. */
3025 dprintk(2,
3026 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
3027 sp->flags |= SRB_SENT;
3028 ha->actthreads++;
3029 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
3030 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3031 mmiowb();
3032
3033 out:
3034 if (status)
3035 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
3036 else
3037 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
3038
3039 return status;
3040}
3041#else /* !QLA_64BIT_PTR */
3042
3043/*
3044 * qla1280_32bit_start_scsi
3045 * The start SCSI is responsible for building request packets on
3046 * request ring and modifying ISP input pointer.
3047 *
3048 * The Qlogic firmware interface allows every queue slot to have a SCSI
3049 * command and up to 4 scatter/gather (SG) entries. If we need more
3050 * than 4 SG entries, then continuation entries are used that can
3051 * hold another 7 entries each. The start routine determines if there
3052 * is eought empty slots then build the combination of requests to
3053 * fulfill the OS request.
3054 *
3055 * Input:
3056 * ha = adapter block pointer.
3057 * sp = SCSI Request Block structure pointer.
3058 *
3059 * Returns:
3060 * 0 = success, was able to issue command.
3061 */
3062static int
3063qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
3064{
3065 struct device_reg __iomem *reg = ha->iobase;
3066 struct scsi_cmnd *cmd = sp->cmd;
3067 struct cmd_entry *pkt;
3068 __le32 *dword_ptr;
3069 int status = 0;
3070 int cnt;
3071 int req_cnt;
3072 int seg_cnt;
3073 u8 dir;
3074
3075 ENTER("qla1280_32bit_start_scsi");
3076
3077 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
3078 cmd->cmnd[0]);
3079
3080 /* Calculate number of entries and segments required. */
3081 req_cnt = 1;
3082 seg_cnt = scsi_dma_map(cmd);
3083 if (seg_cnt) {
3084 /*
3085 * if greater than four sg entries then we need to allocate
3086 * continuation entries
3087 */
3088 if (seg_cnt > 4) {
3089 req_cnt += (seg_cnt - 4) / 7;
3090 if ((seg_cnt - 4) % 7)
3091 req_cnt++;
3092 }
3093 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
3094 cmd, seg_cnt, req_cnt);
3095 } else if (seg_cnt < 0) {
3096 status = 1;
3097 goto out;
3098 }
3099
3100 if ((req_cnt + 2) >= ha->req_q_cnt) {
3101 /* Calculate number of free request entries. */
3102 cnt = RD_REG_WORD(®->mailbox4);
3103 if (ha->req_ring_index < cnt)
3104 ha->req_q_cnt = cnt - ha->req_ring_index;
3105 else
3106 ha->req_q_cnt =
3107 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3108 }
3109
3110 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
3111 ha->req_q_cnt, seg_cnt);
3112 /* If room for request in request ring. */
3113 if ((req_cnt + 2) >= ha->req_q_cnt) {
3114 status = SCSI_MLQUEUE_HOST_BUSY;
3115 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
3116 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
3117 ha->req_q_cnt, req_cnt);
3118 goto out;
3119 }
3120
3121 /* Check for empty slot in outstanding command list. */
3122 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3123 (ha->outstanding_cmds[cnt] != 0); cnt++) ;
3124
3125 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
3126 status = SCSI_MLQUEUE_HOST_BUSY;
3127 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
3128 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
3129 goto out;
3130 }
3131
3132 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
3133 ha->outstanding_cmds[cnt] = sp;
3134 ha->req_q_cnt -= req_cnt;
3135
3136 /*
3137 * Build command packet.
3138 */
3139 pkt = (struct cmd_entry *) ha->request_ring_ptr;
3140
3141 pkt->entry_type = COMMAND_TYPE;
3142 pkt->entry_count = (uint8_t) req_cnt;
3143 pkt->sys_define = (uint8_t) ha->req_ring_index;
3144 pkt->entry_status = 0;
3145 pkt->handle = cpu_to_le32(cnt);
3146
3147 /* Zero out remaining portion of packet. */
3148 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3149
3150 /* Set ISP command timeout. */
3151 pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ);
3152
3153 /* Set device target ID and LUN */
3154 pkt->lun = SCSI_LUN_32(cmd);
3155 pkt->target = SCSI_BUS_32(cmd) ?
3156 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3157
3158 /* Enable simple tag queuing if device supports it. */
3159 if (cmd->device->simple_tags)
3160 pkt->control_flags |= cpu_to_le16(BIT_3);
3161
3162 /* Load SCSI command packet. */
3163 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
3164 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
3165
3166 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3167 /* Set transfer direction. */
3168 dir = qla1280_data_direction(cmd);
3169 pkt->control_flags |= cpu_to_le16(dir);
3170
3171 /* Set total data segment count. */
3172 pkt->dseg_count = cpu_to_le16(seg_cnt);
3173
3174 /*
3175 * Load data segments.
3176 */
3177 if (seg_cnt) {
3178 struct scatterlist *sg, *s;
3179 int remseg = seg_cnt;
3180
3181 sg = scsi_sglist(cmd);
3182
3183 /* Setup packet address segment pointer. */
3184 dword_ptr = &pkt->dseg_0_address;
3185
3186 dprintk(3, "Building S/G data segments..\n");
3187 qla1280_dump_buffer(1, (char *)sg, 4 * 16);
3188
3189 /* Load command entry data segments. */
3190 for_each_sg(sg, s, seg_cnt, cnt) {
3191 if (cnt == 4)
3192 break;
3193 *dword_ptr++ =
3194 cpu_to_le32(pci_dma_lo32(sg_dma_address(s)));
3195 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
3196 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
3197 (pci_dma_lo32(sg_dma_address(s))),
3198 (sg_dma_len(s)));
3199 remseg--;
3200 }
3201 /*
3202 * Build continuation packets.
3203 */
3204 dprintk(3, "S/G Building Continuation"
3205 "...seg_cnt=0x%x remains\n", seg_cnt);
3206 while (remseg > 0) {
3207 /* Continue from end point */
3208 sg = s;
3209 /* Adjust ring index. */
3210 ha->req_ring_index++;
3211 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3212 ha->req_ring_index = 0;
3213 ha->request_ring_ptr =
3214 ha->request_ring;
3215 } else
3216 ha->request_ring_ptr++;
3217
3218 pkt = (struct cmd_entry *)ha->request_ring_ptr;
3219
3220 /* Zero out packet. */
3221 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3222
3223 /* Load packet defaults. */
3224 ((struct cont_entry *) pkt)->
3225 entry_type = CONTINUE_TYPE;
3226 ((struct cont_entry *) pkt)->entry_count = 1;
3227
3228 ((struct cont_entry *) pkt)->sys_define =
3229 (uint8_t) ha->req_ring_index;
3230
3231 /* Setup packet address segment pointer. */
3232 dword_ptr =
3233 &((struct cont_entry *) pkt)->dseg_0_address;
3234
3235 /* Load continuation entry data segments. */
3236 for_each_sg(sg, s, remseg, cnt) {
3237 if (cnt == 7)
3238 break;
3239 *dword_ptr++ =
3240 cpu_to_le32(pci_dma_lo32(sg_dma_address(s)));
3241 *dword_ptr++ =
3242 cpu_to_le32(sg_dma_len(s));
3243 dprintk(1,
3244 "S/G Segment Cont. phys_addr=0x%x, "
3245 "len=0x%x\n",
3246 cpu_to_le32(pci_dma_lo32(sg_dma_address(s))),
3247 cpu_to_le32(sg_dma_len(s)));
3248 }
3249 remseg -= cnt;
3250 dprintk(5, "qla1280_32bit_start_scsi: "
3251 "continuation packet data - "
3252 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
3253 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3254 qla1280_dump_buffer(5, (char *)pkt,
3255 REQUEST_ENTRY_SIZE);
3256 }
3257 } else { /* No data transfer at all */
3258 dprintk(5, "qla1280_32bit_start_scsi: No data, command "
3259 "packet data - \n");
3260 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3261 }
3262 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
3263 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3264 REQUEST_ENTRY_SIZE);
3265
3266 /* Adjust ring index. */
3267 ha->req_ring_index++;
3268 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3269 ha->req_ring_index = 0;
3270 ha->request_ring_ptr = ha->request_ring;
3271 } else
3272 ha->request_ring_ptr++;
3273
3274 /* Set chip new ring index. */
3275 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
3276 "for pending command\n");
3277 sp->flags |= SRB_SENT;
3278 ha->actthreads++;
3279 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
3280 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3281 mmiowb();
3282
3283out:
3284 if (status)
3285 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
3286
3287 LEAVE("qla1280_32bit_start_scsi");
3288
3289 return status;
3290}
3291#endif
3292
3293/*
3294 * qla1280_req_pkt
3295 * Function is responsible for locking ring and
3296 * getting a zeroed out request packet.
3297 *
3298 * Input:
3299 * ha = adapter block pointer.
3300 *
3301 * Returns:
3302 * 0 = failed to get slot.
3303 */
3304static request_t *
3305qla1280_req_pkt(struct scsi_qla_host *ha)
3306{
3307 struct device_reg __iomem *reg = ha->iobase;
3308 request_t *pkt = NULL;
3309 int cnt;
3310 uint32_t timer;
3311
3312 ENTER("qla1280_req_pkt");
3313
3314 /*
3315 * This can be called from interrupt context, damn it!!!
3316 */
3317 /* Wait for 30 seconds for slot. */
3318 for (timer = 15000000; timer; timer--) {
3319 if (ha->req_q_cnt > 0) {
3320 /* Calculate number of free request entries. */
3321 cnt = RD_REG_WORD(®->mailbox4);
3322 if (ha->req_ring_index < cnt)
3323 ha->req_q_cnt = cnt - ha->req_ring_index;
3324 else
3325 ha->req_q_cnt =
3326 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3327 }
3328
3329 /* Found empty request ring slot? */
3330 if (ha->req_q_cnt > 0) {
3331 ha->req_q_cnt--;
3332 pkt = ha->request_ring_ptr;
3333
3334 /* Zero out packet. */
3335 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3336
3337 /*
3338 * How can this be right when we have a ring
3339 * size of 512???
3340 */
3341 /* Set system defined field. */
3342 pkt->sys_define = (uint8_t) ha->req_ring_index;
3343
3344 /* Set entry count. */
3345 pkt->entry_count = 1;
3346
3347 break;
3348 }
3349
3350 udelay(2); /* 10 */
3351
3352 /* Check for pending interrupts. */
3353 qla1280_poll(ha);
3354 }
3355
3356 if (!pkt)
3357 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
3358 else
3359 dprintk(3, "qla1280_req_pkt: exiting normally\n");
3360
3361 return pkt;
3362}
3363
3364/*
3365 * qla1280_isp_cmd
3366 * Function is responsible for modifying ISP input pointer.
3367 * Releases ring lock.
3368 *
3369 * Input:
3370 * ha = adapter block pointer.
3371 */
3372static void
3373qla1280_isp_cmd(struct scsi_qla_host *ha)
3374{
3375 struct device_reg __iomem *reg = ha->iobase;
3376
3377 ENTER("qla1280_isp_cmd");
3378
3379 dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
3380 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3381 REQUEST_ENTRY_SIZE);
3382
3383 /* Adjust ring index. */
3384 ha->req_ring_index++;
3385 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3386 ha->req_ring_index = 0;
3387 ha->request_ring_ptr = ha->request_ring;
3388 } else
3389 ha->request_ring_ptr++;
3390
3391 /*
3392 * Update request index to mailbox4 (Request Queue In).
3393 * The mmiowb() ensures that this write is ordered with writes by other
3394 * CPUs. Without the mmiowb(), it is possible for the following:
3395 * CPUA posts write of index 5 to mailbox4
3396 * CPUA releases host lock
3397 * CPUB acquires host lock
3398 * CPUB posts write of index 6 to mailbox4
3399 * On PCI bus, order reverses and write of 6 posts, then index 5,
3400 * causing chip to issue full queue of stale commands
3401 * The mmiowb() prevents future writes from crossing the barrier.
3402 * See Documentation/DocBook/deviceiobook.tmpl for more information.
3403 */
3404 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
3405 mmiowb();
3406
3407 LEAVE("qla1280_isp_cmd");
3408}
3409
3410/****************************************************************************/
3411/* Interrupt Service Routine. */
3412/****************************************************************************/
3413
3414/****************************************************************************
3415 * qla1280_isr
3416 * Calls I/O done on command completion.
3417 *
3418 * Input:
3419 * ha = adapter block pointer.
3420 * done_q = done queue.
3421 ****************************************************************************/
3422static void
3423qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
3424{
3425 struct device_reg __iomem *reg = ha->iobase;
3426 struct response *pkt;
3427 struct srb *sp = NULL;
3428 uint16_t mailbox[MAILBOX_REGISTER_COUNT];
3429 uint16_t *wptr;
3430 uint32_t index;
3431 u16 istatus;
3432
3433 ENTER("qla1280_isr");
3434
3435 istatus = RD_REG_WORD(®->istatus);
3436 if (!(istatus & (RISC_INT | PCI_INT)))
3437 return;
3438
3439 /* Save mailbox register 5 */
3440 mailbox[5] = RD_REG_WORD(®->mailbox5);
3441
3442 /* Check for mailbox interrupt. */
3443
3444 mailbox[0] = RD_REG_WORD_dmasync(®->semaphore);
3445
3446 if (mailbox[0] & BIT_0) {
3447 /* Get mailbox data. */
3448 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
3449
3450 wptr = &mailbox[0];
3451 *wptr++ = RD_REG_WORD(®->mailbox0);
3452 *wptr++ = RD_REG_WORD(®->mailbox1);
3453 *wptr = RD_REG_WORD(®->mailbox2);
3454 if (mailbox[0] != MBA_SCSI_COMPLETION) {
3455 wptr++;
3456 *wptr++ = RD_REG_WORD(®->mailbox3);
3457 *wptr++ = RD_REG_WORD(®->mailbox4);
3458 wptr++;
3459 *wptr++ = RD_REG_WORD(®->mailbox6);
3460 *wptr = RD_REG_WORD(®->mailbox7);
3461 }
3462
3463 /* Release mailbox registers. */
3464
3465 WRT_REG_WORD(®->semaphore, 0);
3466 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
3467
3468 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
3469 mailbox[0]);
3470
3471 /* Handle asynchronous event */
3472 switch (mailbox[0]) {
3473 case MBA_SCSI_COMPLETION: /* Response completion */
3474 dprintk(5, "qla1280_isr: mailbox SCSI response "
3475 "completion\n");
3476
3477 if (ha->flags.online) {
3478 /* Get outstanding command index. */
3479 index = mailbox[2] << 16 | mailbox[1];
3480
3481 /* Validate handle. */
3482 if (index < MAX_OUTSTANDING_COMMANDS)
3483 sp = ha->outstanding_cmds[index];
3484 else
3485 sp = NULL;
3486
3487 if (sp) {
3488 /* Free outstanding command slot. */
3489 ha->outstanding_cmds[index] = NULL;
3490
3491 /* Save ISP completion status */
3492 CMD_RESULT(sp->cmd) = 0;
3493 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3494
3495 /* Place block on done queue */
3496 list_add_tail(&sp->list, done_q);
3497 } else {
3498 /*
3499 * If we get here we have a real problem!
3500 */
3501 printk(KERN_WARNING
3502 "qla1280: ISP invalid handle\n");
3503 }
3504 }
3505 break;
3506
3507 case MBA_BUS_RESET: /* SCSI Bus Reset */
3508 ha->flags.reset_marker = 1;
3509 index = mailbox[6] & BIT_0;
3510 ha->bus_settings[index].reset_marker = 1;
3511
3512 printk(KERN_DEBUG "qla1280_isr(): index %i "
3513 "asynchronous BUS_RESET\n", index);
3514 break;
3515
3516 case MBA_SYSTEM_ERR: /* System Error */
3517 printk(KERN_WARNING
3518 "qla1280: ISP System Error - mbx1=%xh, mbx2="
3519 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
3520 mailbox[3]);
3521 break;
3522
3523 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
3524 printk(KERN_WARNING
3525 "qla1280: ISP Request Transfer Error\n");
3526 break;
3527
3528 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
3529 printk(KERN_WARNING
3530 "qla1280: ISP Response Transfer Error\n");
3531 break;
3532
3533 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
3534 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
3535 break;
3536
3537 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */
3538 dprintk(2,
3539 "qla1280_isr: asynchronous TIMEOUT_RESET\n");
3540 break;
3541
3542 case MBA_DEVICE_RESET: /* Bus Device Reset */
3543 printk(KERN_INFO "qla1280_isr(): asynchronous "
3544 "BUS_DEVICE_RESET\n");
3545
3546 ha->flags.reset_marker = 1;
3547 index = mailbox[6] & BIT_0;
3548 ha->bus_settings[index].reset_marker = 1;
3549 break;
3550
3551 case MBA_BUS_MODE_CHANGE:
3552 dprintk(2,
3553 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
3554 break;
3555
3556 default:
3557 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
3558 if (mailbox[0] < MBA_ASYNC_EVENT) {
3559 wptr = &mailbox[0];
3560 memcpy((uint16_t *) ha->mailbox_out, wptr,
3561 MAILBOX_REGISTER_COUNT *
3562 sizeof(uint16_t));
3563
3564 if(ha->mailbox_wait != NULL)
3565 complete(ha->mailbox_wait);
3566 }
3567 break;
3568 }
3569 } else {
3570 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
3571 }
3572
3573 /*
3574 * We will receive interrupts during mailbox testing prior to
3575 * the card being marked online, hence the double check.
3576 */
3577 if (!(ha->flags.online && !ha->mailbox_wait)) {
3578 dprintk(2, "qla1280_isr: Response pointer Error\n");
3579 goto out;
3580 }
3581
3582 if (mailbox[5] >= RESPONSE_ENTRY_CNT)
3583 goto out;
3584
3585 while (ha->rsp_ring_index != mailbox[5]) {
3586 pkt = ha->response_ring_ptr;
3587
3588 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
3589 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
3590 dprintk(5,"qla1280_isr: response packet data\n");
3591 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
3592
3593 if (pkt->entry_type == STATUS_TYPE) {
3594 if ((le16_to_cpu(pkt->scsi_status) & 0xff)
3595 || pkt->comp_status || pkt->entry_status) {
3596 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3597 "0x%x mailbox[5] = 0x%x, comp_status "
3598 "= 0x%x, scsi_status = 0x%x\n",
3599 ha->rsp_ring_index, mailbox[5],
3600 le16_to_cpu(pkt->comp_status),
3601 le16_to_cpu(pkt->scsi_status));
3602 }
3603 } else {
3604 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3605 "0x%x, mailbox[5] = 0x%x\n",
3606 ha->rsp_ring_index, mailbox[5]);
3607 dprintk(2, "qla1280_isr: response packet data\n");
3608 qla1280_dump_buffer(2, (char *)pkt,
3609 RESPONSE_ENTRY_SIZE);
3610 }
3611
3612 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
3613 dprintk(2, "status: Cmd %p, handle %i\n",
3614 ha->outstanding_cmds[pkt->handle]->cmd,
3615 pkt->handle);
3616 if (pkt->entry_type == STATUS_TYPE)
3617 qla1280_status_entry(ha, pkt, done_q);
3618 else
3619 qla1280_error_entry(ha, pkt, done_q);
3620 /* Adjust ring index. */
3621 ha->rsp_ring_index++;
3622 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
3623 ha->rsp_ring_index = 0;
3624 ha->response_ring_ptr = ha->response_ring;
3625 } else
3626 ha->response_ring_ptr++;
3627 WRT_REG_WORD(®->mailbox5, ha->rsp_ring_index);
3628 }
3629 }
3630
3631 out:
3632 LEAVE("qla1280_isr");
3633}
3634
3635/*
3636 * qla1280_rst_aen
3637 * Processes asynchronous reset.
3638 *
3639 * Input:
3640 * ha = adapter block pointer.
3641 */
3642static void
3643qla1280_rst_aen(struct scsi_qla_host *ha)
3644{
3645 uint8_t bus;
3646
3647 ENTER("qla1280_rst_aen");
3648
3649 if (ha->flags.online && !ha->flags.reset_active &&
3650 !ha->flags.abort_isp_active) {
3651 ha->flags.reset_active = 1;
3652 while (ha->flags.reset_marker) {
3653 /* Issue marker command. */
3654 ha->flags.reset_marker = 0;
3655 for (bus = 0; bus < ha->ports &&
3656 !ha->flags.reset_marker; bus++) {
3657 if (ha->bus_settings[bus].reset_marker) {
3658 ha->bus_settings[bus].reset_marker = 0;
3659 qla1280_marker(ha, bus, 0, 0,
3660 MK_SYNC_ALL);
3661 }
3662 }
3663 }
3664 }
3665
3666 LEAVE("qla1280_rst_aen");
3667}
3668
3669
3670/*
3671 * qla1280_status_entry
3672 * Processes received ISP status entry.
3673 *
3674 * Input:
3675 * ha = adapter block pointer.
3676 * pkt = entry pointer.
3677 * done_q = done queue.
3678 */
3679static void
3680qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
3681 struct list_head *done_q)
3682{
3683 unsigned int bus, target, lun;
3684 int sense_sz;
3685 struct srb *sp;
3686 struct scsi_cmnd *cmd;
3687 uint32_t handle = le32_to_cpu(pkt->handle);
3688 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
3689 uint16_t comp_status = le16_to_cpu(pkt->comp_status);
3690
3691 ENTER("qla1280_status_entry");
3692
3693 /* Validate handle. */
3694 if (handle < MAX_OUTSTANDING_COMMANDS)
3695 sp = ha->outstanding_cmds[handle];
3696 else
3697 sp = NULL;
3698
3699 if (!sp) {
3700 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
3701 goto out;
3702 }
3703
3704 /* Free outstanding command slot. */
3705 ha->outstanding_cmds[handle] = NULL;
3706
3707 cmd = sp->cmd;
3708
3709 /* Generate LU queue on cntrl, target, LUN */
3710 bus = SCSI_BUS_32(cmd);
3711 target = SCSI_TCN_32(cmd);
3712 lun = SCSI_LUN_32(cmd);
3713
3714 if (comp_status || scsi_status) {
3715 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
3716 "0x%x, handle = 0x%x\n", comp_status,
3717 scsi_status, handle);
3718 }
3719
3720 /* Target busy or queue full */
3721 if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL ||
3722 (scsi_status & 0xFF) == SAM_STAT_BUSY) {
3723 CMD_RESULT(cmd) = scsi_status & 0xff;
3724 } else {
3725
3726 /* Save ISP completion status */
3727 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
3728
3729 if (scsi_status & SAM_STAT_CHECK_CONDITION) {
3730 if (comp_status != CS_ARS_FAILED) {
3731 uint16_t req_sense_length =
3732 le16_to_cpu(pkt->req_sense_length);
3733 if (req_sense_length < CMD_SNSLEN(cmd))
3734 sense_sz = req_sense_length;
3735 else
3736 /*
3737 * scsi_cmnd->sense_buffer is
3738 * 64 bytes, why only copy 63?
3739 * This looks wrong! /Jes
3740 */
3741 sense_sz = CMD_SNSLEN(cmd) - 1;
3742
3743 memcpy(cmd->sense_buffer,
3744 &pkt->req_sense_data, sense_sz);
3745 } else
3746 sense_sz = 0;
3747 memset(cmd->sense_buffer + sense_sz, 0,
3748 SCSI_SENSE_BUFFERSIZE - sense_sz);
3749
3750 dprintk(2, "qla1280_status_entry: Check "
3751 "condition Sense data, b %i, t %i, "
3752 "l %i\n", bus, target, lun);
3753 if (sense_sz)
3754 qla1280_dump_buffer(2,
3755 (char *)cmd->sense_buffer,
3756 sense_sz);
3757 }
3758 }
3759
3760 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3761
3762 /* Place command on done queue. */
3763 list_add_tail(&sp->list, done_q);
3764 out:
3765 LEAVE("qla1280_status_entry");
3766}
3767
3768/*
3769 * qla1280_error_entry
3770 * Processes error entry.
3771 *
3772 * Input:
3773 * ha = adapter block pointer.
3774 * pkt = entry pointer.
3775 * done_q = done queue.
3776 */
3777static void
3778qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
3779 struct list_head *done_q)
3780{
3781 struct srb *sp;
3782 uint32_t handle = le32_to_cpu(pkt->handle);
3783
3784 ENTER("qla1280_error_entry");
3785
3786 if (pkt->entry_status & BIT_3)
3787 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
3788 else if (pkt->entry_status & BIT_2)
3789 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
3790 else if (pkt->entry_status & BIT_1)
3791 dprintk(2, "qla1280_error_entry: FULL flag error\n");
3792 else
3793 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
3794
3795 /* Validate handle. */
3796 if (handle < MAX_OUTSTANDING_COMMANDS)
3797 sp = ha->outstanding_cmds[handle];
3798 else
3799 sp = NULL;
3800
3801 if (sp) {
3802 /* Free outstanding command slot. */
3803 ha->outstanding_cmds[handle] = NULL;
3804
3805 /* Bad payload or header */
3806 if (pkt->entry_status & (BIT_3 + BIT_2)) {
3807 /* Bad payload or header, set error status. */
3808 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
3809 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3810 } else if (pkt->entry_status & BIT_1) { /* FULL flag */
3811 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
3812 } else {
3813 /* Set error status. */
3814 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3815 }
3816
3817 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3818
3819 /* Place command on done queue. */
3820 list_add_tail(&sp->list, done_q);
3821 }
3822#ifdef QLA_64BIT_PTR
3823 else if (pkt->entry_type == COMMAND_A64_TYPE) {
3824 printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
3825 }
3826#endif
3827
3828 LEAVE("qla1280_error_entry");
3829}
3830
3831/*
3832 * qla1280_abort_isp
3833 * Resets ISP and aborts all outstanding commands.
3834 *
3835 * Input:
3836 * ha = adapter block pointer.
3837 *
3838 * Returns:
3839 * 0 = success
3840 */
3841static int
3842qla1280_abort_isp(struct scsi_qla_host *ha)
3843{
3844 struct device_reg __iomem *reg = ha->iobase;
3845 struct srb *sp;
3846 int status = 0;
3847 int cnt;
3848 int bus;
3849
3850 ENTER("qla1280_abort_isp");
3851
3852 if (ha->flags.abort_isp_active || !ha->flags.online)
3853 goto out;
3854
3855 ha->flags.abort_isp_active = 1;
3856
3857 /* Disable ISP interrupts. */
3858 qla1280_disable_intrs(ha);
3859 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC);
3860 RD_REG_WORD(®->id_l);
3861
3862 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
3863 ha->host_no);
3864 /* Dequeue all commands in outstanding command list. */
3865 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3866 struct scsi_cmnd *cmd;
3867 sp = ha->outstanding_cmds[cnt];
3868 if (sp) {
3869 cmd = sp->cmd;
3870 CMD_RESULT(cmd) = DID_RESET << 16;
3871 CMD_HANDLE(cmd) = COMPLETED_HANDLE;
3872 ha->outstanding_cmds[cnt] = NULL;
3873 list_add_tail(&sp->list, &ha->done_q);
3874 }
3875 }
3876
3877 qla1280_done(ha);
3878
3879 status = qla1280_load_firmware(ha);
3880 if (status)
3881 goto out;
3882
3883 /* Setup adapter based on NVRAM parameters. */
3884 qla1280_nvram_config (ha);
3885
3886 status = qla1280_init_rings(ha);
3887 if (status)
3888 goto out;
3889
3890 /* Issue SCSI reset. */
3891 for (bus = 0; bus < ha->ports; bus++)
3892 qla1280_bus_reset(ha, bus);
3893
3894 ha->flags.abort_isp_active = 0;
3895 out:
3896 if (status) {
3897 printk(KERN_WARNING
3898 "qla1280: ISP error recovery failed, board disabled");
3899 qla1280_reset_adapter(ha);
3900 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
3901 }
3902
3903 LEAVE("qla1280_abort_isp");
3904 return status;
3905}
3906
3907
3908/*
3909 * qla1280_debounce_register
3910 * Debounce register.
3911 *
3912 * Input:
3913 * port = register address.
3914 *
3915 * Returns:
3916 * register value.
3917 */
3918static u16
3919qla1280_debounce_register(volatile u16 __iomem * addr)
3920{
3921 volatile u16 ret;
3922 volatile u16 ret2;
3923
3924 ret = RD_REG_WORD(addr);
3925 ret2 = RD_REG_WORD(addr);
3926
3927 if (ret == ret2)
3928 return ret;
3929
3930 do {
3931 cpu_relax();
3932 ret = RD_REG_WORD(addr);
3933 ret2 = RD_REG_WORD(addr);
3934 } while (ret != ret2);
3935
3936 return ret;
3937}
3938
3939
3940/************************************************************************
3941 * qla1280_check_for_dead_scsi_bus *
3942 * *
3943 * This routine checks for a dead SCSI bus *
3944 ************************************************************************/
3945#define SET_SXP_BANK 0x0100
3946#define SCSI_PHASE_INVALID 0x87FF
3947static int
3948qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
3949{
3950 uint16_t config_reg, scsi_control;
3951 struct device_reg __iomem *reg = ha->iobase;
3952
3953 if (ha->bus_settings[bus].scsi_bus_dead) {
3954 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC);
3955 config_reg = RD_REG_WORD(®->cfg_1);
3956 WRT_REG_WORD(®->cfg_1, SET_SXP_BANK);
3957 scsi_control = RD_REG_WORD(®->scsiControlPins);
3958 WRT_REG_WORD(®->cfg_1, config_reg);
3959 WRT_REG_WORD(®->host_cmd, HC_RELEASE_RISC);
3960
3961 if (scsi_control == SCSI_PHASE_INVALID) {
3962 ha->bus_settings[bus].scsi_bus_dead = 1;
3963 return 1; /* bus is dead */
3964 } else {
3965 ha->bus_settings[bus].scsi_bus_dead = 0;
3966 ha->bus_settings[bus].failed_reset_count = 0;
3967 }
3968 }
3969 return 0; /* bus is not dead */
3970}
3971
3972static void
3973qla1280_get_target_parameters(struct scsi_qla_host *ha,
3974 struct scsi_device *device)
3975{
3976 uint16_t mb[MAILBOX_REGISTER_COUNT];
3977 int bus, target, lun;
3978
3979 bus = device->channel;
3980 target = device->id;
3981 lun = device->lun;
3982
3983
3984 mb[0] = MBC_GET_TARGET_PARAMETERS;
3985 mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
3986 mb[1] <<= 8;
3987 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
3988 &mb[0]);
3989
3990 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
3991
3992 if (mb[3] != 0) {
3993 printk(" Sync: period %d, offset %d",
3994 (mb[3] & 0xff), (mb[3] >> 8));
3995 if (mb[2] & BIT_13)
3996 printk(", Wide");
3997 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
3998 printk(", DT");
3999 } else
4000 printk(" Async");
4001
4002 if (device->simple_tags)
4003 printk(", Tagged queuing: depth %d", device->queue_depth);
4004 printk("\n");
4005}
4006
4007
4008#if DEBUG_QLA1280
4009static void
4010__qla1280_dump_buffer(char *b, int size)
4011{
4012 int cnt;
4013 u8 c;
4014
4015 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah "
4016 "Bh Ch Dh Eh Fh\n");
4017 printk(KERN_DEBUG "---------------------------------------------"
4018 "------------------\n");
4019
4020 for (cnt = 0; cnt < size;) {
4021 c = *b++;
4022
4023 printk("0x%02x", c);
4024 cnt++;
4025 if (!(cnt % 16))
4026 printk("\n");
4027 else
4028 printk(" ");
4029 }
4030 if (cnt % 16)
4031 printk("\n");
4032}
4033
4034/**************************************************************************
4035 * ql1280_print_scsi_cmd
4036 *
4037 **************************************************************************/
4038static void
4039__qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
4040{
4041 struct scsi_qla_host *ha;
4042 struct Scsi_Host *host = CMD_HOST(cmd);
4043 struct srb *sp;
4044 /* struct scatterlist *sg; */
4045
4046 int i;
4047 ha = (struct scsi_qla_host *)host->hostdata;
4048
4049 sp = (struct srb *)CMD_SP(cmd);
4050 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
4051 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
4052 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
4053 CMD_CDBLEN(cmd));
4054 printk(" CDB = ");
4055 for (i = 0; i < cmd->cmd_len; i++) {
4056 printk("0x%02x ", cmd->cmnd[i]);
4057 }
4058 printk(" seg_cnt =%d\n", scsi_sg_count(cmd));
4059 printk(" request buffer=0x%p, request buffer len=0x%x\n",
4060 scsi_sglist(cmd), scsi_bufflen(cmd));
4061 /* if (cmd->use_sg)
4062 {
4063 sg = (struct scatterlist *) cmd->request_buffer;
4064 printk(" SG buffer: \n");
4065 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
4066 } */
4067 printk(" tag=%d, transfersize=0x%x \n",
4068 cmd->tag, cmd->transfersize);
4069 printk(" SP=0x%p\n", CMD_SP(cmd));
4070 printk(" underflow size = 0x%x, direction=0x%x\n",
4071 cmd->underflow, cmd->sc_data_direction);
4072}
4073
4074/**************************************************************************
4075 * ql1280_dump_device
4076 *
4077 **************************************************************************/
4078static void
4079ql1280_dump_device(struct scsi_qla_host *ha)
4080{
4081
4082 struct scsi_cmnd *cp;
4083 struct srb *sp;
4084 int i;
4085
4086 printk(KERN_DEBUG "Outstanding Commands on controller:\n");
4087
4088 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
4089 if ((sp = ha->outstanding_cmds[i]) == NULL)
4090 continue;
4091 if ((cp = sp->cmd) == NULL)
4092 continue;
4093 qla1280_print_scsi_cmd(1, cp);
4094 }
4095}
4096#endif
4097
4098
4099enum tokens {
4100 TOKEN_NVRAM,
4101 TOKEN_SYNC,
4102 TOKEN_WIDE,
4103 TOKEN_PPR,
4104 TOKEN_VERBOSE,
4105 TOKEN_DEBUG,
4106};
4107
4108struct setup_tokens {
4109 char *token;
4110 int val;
4111};
4112
4113static struct setup_tokens setup_token[] __initdata =
4114{
4115 { "nvram", TOKEN_NVRAM },
4116 { "sync", TOKEN_SYNC },
4117 { "wide", TOKEN_WIDE },
4118 { "ppr", TOKEN_PPR },
4119 { "verbose", TOKEN_VERBOSE },
4120 { "debug", TOKEN_DEBUG },
4121};
4122
4123
4124/**************************************************************************
4125 * qla1280_setup
4126 *
4127 * Handle boot parameters. This really needs to be changed so one
4128 * can specify per adapter parameters.
4129 **************************************************************************/
4130static int __init
4131qla1280_setup(char *s)
4132{
4133 char *cp, *ptr;
4134 unsigned long val;
4135 int toke;
4136
4137 cp = s;
4138
4139 while (cp && (ptr = strchr(cp, ':'))) {
4140 ptr++;
4141 if (!strcmp(ptr, "yes")) {
4142 val = 0x10000;
4143 ptr += 3;
4144 } else if (!strcmp(ptr, "no")) {
4145 val = 0;
4146 ptr += 2;
4147 } else
4148 val = simple_strtoul(ptr, &ptr, 0);
4149
4150 switch ((toke = qla1280_get_token(cp))) {
4151 case TOKEN_NVRAM:
4152 if (!val)
4153 driver_setup.no_nvram = 1;
4154 break;
4155 case TOKEN_SYNC:
4156 if (!val)
4157 driver_setup.no_sync = 1;
4158 else if (val != 0x10000)
4159 driver_setup.sync_mask = val;
4160 break;
4161 case TOKEN_WIDE:
4162 if (!val)
4163 driver_setup.no_wide = 1;
4164 else if (val != 0x10000)
4165 driver_setup.wide_mask = val;
4166 break;
4167 case TOKEN_PPR:
4168 if (!val)
4169 driver_setup.no_ppr = 1;
4170 else if (val != 0x10000)
4171 driver_setup.ppr_mask = val;
4172 break;
4173 case TOKEN_VERBOSE:
4174 qla1280_verbose = val;
4175 break;
4176 default:
4177 printk(KERN_INFO "qla1280: unknown boot option %s\n",
4178 cp);
4179 }
4180
4181 cp = strchr(ptr, ';');
4182 if (cp)
4183 cp++;
4184 else {
4185 break;
4186 }
4187 }
4188 return 1;
4189}
4190
4191
4192static int __init
4193qla1280_get_token(char *str)
4194{
4195 char *sep;
4196 long ret = -1;
4197 int i;
4198
4199 sep = strchr(str, ':');
4200
4201 if (sep) {
4202 for (i = 0; i < ARRAY_SIZE(setup_token); i++) {
4203 if (!strncmp(setup_token[i].token, str, (sep - str))) {
4204 ret = setup_token[i].val;
4205 break;
4206 }
4207 }
4208 }
4209
4210 return ret;
4211}
4212
4213
4214static struct scsi_host_template qla1280_driver_template = {
4215 .module = THIS_MODULE,
4216 .proc_name = "qla1280",
4217 .name = "Qlogic ISP 1280/12160",
4218 .info = qla1280_info,
4219 .slave_configure = qla1280_slave_configure,
4220 .queuecommand = qla1280_queuecommand,
4221 .eh_abort_handler = qla1280_eh_abort,
4222 .eh_device_reset_handler= qla1280_eh_device_reset,
4223 .eh_bus_reset_handler = qla1280_eh_bus_reset,
4224 .eh_host_reset_handler = qla1280_eh_adapter_reset,
4225 .bios_param = qla1280_biosparam,
4226 .can_queue = 0xfffff,
4227 .this_id = -1,
4228 .sg_tablesize = SG_ALL,
4229 .cmd_per_lun = 1,
4230 .use_clustering = ENABLE_CLUSTERING,
4231};
4232
4233
4234static int __devinit
4235qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4236{
4237 int devnum = id->driver_data;
4238 struct qla_boards *bdp = &ql1280_board_tbl[devnum];
4239 struct Scsi_Host *host;
4240 struct scsi_qla_host *ha;
4241 int error = -ENODEV;
4242
4243 /* Bypass all AMI SUBSYS VENDOR IDs */
4244 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
4245 printk(KERN_INFO
4246 "qla1280: Skipping AMI SubSys Vendor ID Chip\n");
4247 goto error;
4248 }
4249
4250 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
4251 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
4252
4253 if (pci_enable_device(pdev)) {
4254 printk(KERN_WARNING
4255 "qla1280: Failed to enabled pci device, aborting.\n");
4256 goto error;
4257 }
4258
4259 pci_set_master(pdev);
4260
4261 error = -ENOMEM;
4262 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
4263 if (!host) {
4264 printk(KERN_WARNING
4265 "qla1280: Failed to register host, aborting.\n");
4266 goto error_disable_device;
4267 }
4268
4269 ha = (struct scsi_qla_host *)host->hostdata;
4270 memset(ha, 0, sizeof(struct scsi_qla_host));
4271
4272 ha->pdev = pdev;
4273 ha->devnum = devnum; /* specifies microcode load address */
4274
4275#ifdef QLA_64BIT_PTR
4276 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
4277 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32))) {
4278 printk(KERN_WARNING "scsi(%li): Unable to set a "
4279 "suitable DMA mask - aborting\n", ha->host_no);
4280 error = -ENODEV;
4281 goto error_put_host;
4282 }
4283 } else
4284 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
4285 ha->host_no);
4286#else
4287 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32))) {
4288 printk(KERN_WARNING "scsi(%li): Unable to set a "
4289 "suitable DMA mask - aborting\n", ha->host_no);
4290 error = -ENODEV;
4291 goto error_put_host;
4292 }
4293#endif
4294
4295 ha->request_ring = pci_alloc_consistent(ha->pdev,
4296 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
4297 &ha->request_dma);
4298 if (!ha->request_ring) {
4299 printk(KERN_INFO "qla1280: Failed to get request memory\n");
4300 goto error_put_host;
4301 }
4302
4303 ha->response_ring = pci_alloc_consistent(ha->pdev,
4304 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
4305 &ha->response_dma);
4306 if (!ha->response_ring) {
4307 printk(KERN_INFO "qla1280: Failed to get response memory\n");
4308 goto error_free_request_ring;
4309 }
4310
4311 ha->ports = bdp->numPorts;
4312
4313 ha->host = host;
4314 ha->host_no = host->host_no;
4315
4316 host->irq = pdev->irq;
4317 host->max_channel = bdp->numPorts - 1;
4318 host->max_lun = MAX_LUNS - 1;
4319 host->max_id = MAX_TARGETS;
4320 host->max_sectors = 1024;
4321 host->unique_id = host->host_no;
4322
4323 error = -ENODEV;
4324
4325#if MEMORY_MAPPED_IO
4326 ha->mmpbase = pci_ioremap_bar(ha->pdev, 1);
4327 if (!ha->mmpbase) {
4328 printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
4329 goto error_free_response_ring;
4330 }
4331
4332 host->base = (unsigned long)ha->mmpbase;
4333 ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
4334#else
4335 host->io_port = pci_resource_start(ha->pdev, 0);
4336 if (!request_region(host->io_port, 0xff, "qla1280")) {
4337 printk(KERN_INFO "qla1280: Failed to reserve i/o region "
4338 "0x%04lx-0x%04lx - already in use\n",
4339 host->io_port, host->io_port + 0xff);
4340 goto error_free_response_ring;
4341 }
4342
4343 ha->iobase = (struct device_reg *)host->io_port;
4344#endif
4345
4346 INIT_LIST_HEAD(&ha->done_q);
4347
4348 /* Disable ISP interrupts. */
4349 qla1280_disable_intrs(ha);
4350
4351 if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED,
4352 "qla1280", ha)) {
4353 printk("qla1280 : Failed to reserve interrupt %d already "
4354 "in use\n", pdev->irq);
4355 goto error_release_region;
4356 }
4357
4358 /* load the F/W, read paramaters, and init the H/W */
4359 if (qla1280_initialize_adapter(ha)) {
4360 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
4361 goto error_free_irq;
4362 }
4363
4364 /* set our host ID (need to do something about our two IDs) */
4365 host->this_id = ha->bus_settings[0].id;
4366
4367 pci_set_drvdata(pdev, host);
4368
4369 error = scsi_add_host(host, &pdev->dev);
4370 if (error)
4371 goto error_disable_adapter;
4372 scsi_scan_host(host);
4373
4374 return 0;
4375
4376 error_disable_adapter:
4377 qla1280_disable_intrs(ha);
4378 error_free_irq:
4379 free_irq(pdev->irq, ha);
4380 error_release_region:
4381#if MEMORY_MAPPED_IO
4382 iounmap(ha->mmpbase);
4383#else
4384 release_region(host->io_port, 0xff);
4385#endif
4386 error_free_response_ring:
4387 pci_free_consistent(ha->pdev,
4388 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
4389 ha->response_ring, ha->response_dma);
4390 error_free_request_ring:
4391 pci_free_consistent(ha->pdev,
4392 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
4393 ha->request_ring, ha->request_dma);
4394 error_put_host:
4395 scsi_host_put(host);
4396 error_disable_device:
4397 pci_disable_device(pdev);
4398 error:
4399 return error;
4400}
4401
4402
4403static void __devexit
4404qla1280_remove_one(struct pci_dev *pdev)
4405{
4406 struct Scsi_Host *host = pci_get_drvdata(pdev);
4407 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
4408
4409 scsi_remove_host(host);
4410
4411 qla1280_disable_intrs(ha);
4412
4413 free_irq(pdev->irq, ha);
4414
4415#if MEMORY_MAPPED_IO
4416 iounmap(ha->mmpbase);
4417#else
4418 release_region(host->io_port, 0xff);
4419#endif
4420
4421 pci_free_consistent(ha->pdev,
4422 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4423 ha->request_ring, ha->request_dma);
4424 pci_free_consistent(ha->pdev,
4425 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4426 ha->response_ring, ha->response_dma);
4427
4428 pci_disable_device(pdev);
4429
4430 scsi_host_put(host);
4431}
4432
4433static struct pci_driver qla1280_pci_driver = {
4434 .name = "qla1280",
4435 .id_table = qla1280_pci_tbl,
4436 .probe = qla1280_probe_one,
4437 .remove = __devexit_p(qla1280_remove_one),
4438};
4439
4440static int __init
4441qla1280_init(void)
4442{
4443 if (sizeof(struct srb) > sizeof(struct scsi_pointer)) {
4444 printk(KERN_WARNING
4445 "qla1280: struct srb too big, aborting\n");
4446 return -EINVAL;
4447 }
4448
4449#ifdef MODULE
4450 /*
4451 * If we are called as a module, the qla1280 pointer may not be null
4452 * and it would point to our bootup string, just like on the lilo
4453 * command line. IF not NULL, then process this config string with
4454 * qla1280_setup
4455 *
4456 * Boot time Options
4457 * To add options at boot time add a line to your lilo.conf file like:
4458 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
4459 * which will result in the first four devices on the first two
4460 * controllers being set to a tagged queue depth of 32.
4461 */
4462 if (qla1280)
4463 qla1280_setup(qla1280);
4464#endif
4465
4466 return pci_register_driver(&qla1280_pci_driver);
4467}
4468
4469static void __exit
4470qla1280_exit(void)
4471{
4472 int i;
4473
4474 pci_unregister_driver(&qla1280_pci_driver);
4475 /* release any allocated firmware images */
4476 for (i = 0; i < QL_NUM_FW_IMAGES; i++) {
4477 if (qla1280_fw_tbl[i].fw) {
4478 release_firmware(qla1280_fw_tbl[i].fw);
4479 qla1280_fw_tbl[i].fw = NULL;
4480 }
4481 }
4482}
4483
4484module_init(qla1280_init);
4485module_exit(qla1280_exit);
4486
4487
4488MODULE_AUTHOR("Qlogic & Jes Sorensen");
4489MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
4490MODULE_LICENSE("GPL");
4491MODULE_FIRMWARE("qlogic/1040.bin");
4492MODULE_FIRMWARE("qlogic/1280.bin");
4493MODULE_FIRMWARE("qlogic/12160.bin");
4494MODULE_VERSION(QLA1280_VERSION);
4495
4496/*
4497 * Overrides for Emacs so that we almost follow Linus's tabbing style.
4498 * Emacs will notice this stuff at the end of the file and automatically
4499 * adjust the settings for this buffer only. This must remain at the end
4500 * of the file.
4501 * ---------------------------------------------------------------------------
4502 * Local variables:
4503 * c-basic-offset: 8
4504 * tab-width: 8
4505 * End:
4506 */
1// SPDX-License-Identifier: GPL-2.0-or-later
2/******************************************************************************
3* QLOGIC LINUX SOFTWARE
4*
5* QLogic QLA1280 (Ultra2) and QLA12160 (Ultra3) SCSI driver
6* Copyright (C) 2000 Qlogic Corporation (www.qlogic.com)
7* Copyright (C) 2001-2004 Jes Sorensen, Wild Open Source Inc.
8* Copyright (C) 2003-2004 Christoph Hellwig
9*
10******************************************************************************/
11#define QLA1280_VERSION "3.27.1"
12/*****************************************************************************
13 Revision History:
14 Rev 3.27.1, February 8, 2010, Michael Reed
15 - Retain firmware image for error recovery.
16 Rev 3.27, February 10, 2009, Michael Reed
17 - General code cleanup.
18 - Improve error recovery.
19 Rev 3.26, January 16, 2006 Jes Sorensen
20 - Ditch all < 2.6 support
21 Rev 3.25.1, February 10, 2005 Christoph Hellwig
22 - use pci_map_single to map non-S/G requests
23 - remove qla1280_proc_info
24 Rev 3.25, September 28, 2004, Christoph Hellwig
25 - add support for ISP1020/1040
26 - don't include "scsi.h" anymore for 2.6.x
27 Rev 3.24.4 June 7, 2004 Christoph Hellwig
28 - restructure firmware loading, cleanup initialization code
29 - prepare support for ISP1020/1040 chips
30 Rev 3.24.3 January 19, 2004, Jes Sorensen
31 - Handle PCI DMA mask settings correctly
32 - Correct order of error handling in probe_one, free_irq should not
33 be called if request_irq failed
34 Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez
35 - Big endian fixes (James)
36 - Remove bogus IOCB content on zero data transfer commands (Andrew)
37 Rev 3.24.1 January 5, 2004, Jes Sorensen
38 - Initialize completion queue to avoid OOPS on probe
39 - Handle interrupts during mailbox testing
40 Rev 3.24 November 17, 2003, Christoph Hellwig
41 - use struct list_head for completion queue
42 - avoid old Scsi_FOO typedefs
43 - cleanup 2.4 compat glue a bit
44 - use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h"
45 - make initialization for memory mapped vs port I/O more similar
46 - remove broken pci config space manipulation
47 - kill more cruft
48 - this is an almost perfect 2.6 scsi driver now! ;)
49 Rev 3.23.39 December 17, 2003, Jes Sorensen
50 - Delete completion queue from srb if mailbox command failed to
51 to avoid qla1280_done completeting qla1280_error_action's
52 obsolete context
53 - Reduce arguments for qla1280_done
54 Rev 3.23.38 October 18, 2003, Christoph Hellwig
55 - Convert to new-style hotplugable driver for 2.6
56 - Fix missing scsi_unregister/scsi_host_put on HBA removal
57 - Kill some more cruft
58 Rev 3.23.37 October 1, 2003, Jes Sorensen
59 - Make MMIO depend on CONFIG_X86_VISWS instead of yet another
60 random CONFIG option
61 - Clean up locking in probe path
62 Rev 3.23.36 October 1, 2003, Christoph Hellwig
63 - queuecommand only ever receives new commands - clear flags
64 - Reintegrate lost fixes from Linux 2.5
65 Rev 3.23.35 August 14, 2003, Jes Sorensen
66 - Build against 2.6
67 Rev 3.23.34 July 23, 2003, Jes Sorensen
68 - Remove pointless TRUE/FALSE macros
69 - Clean up vchan handling
70 Rev 3.23.33 July 3, 2003, Jes Sorensen
71 - Don't define register access macros before define determining MMIO.
72 This just happened to work out on ia64 but not elsewhere.
73 - Don't try and read from the card while it is in reset as
74 it won't respond and causes an MCA
75 Rev 3.23.32 June 23, 2003, Jes Sorensen
76 - Basic support for boot time arguments
77 Rev 3.23.31 June 8, 2003, Jes Sorensen
78 - Reduce boot time messages
79 Rev 3.23.30 June 6, 2003, Jes Sorensen
80 - Do not enable sync/wide/ppr before it has been determined
81 that the target device actually supports it
82 - Enable DMA arbitration for multi channel controllers
83 Rev 3.23.29 June 3, 2003, Jes Sorensen
84 - Port to 2.5.69
85 Rev 3.23.28 June 3, 2003, Jes Sorensen
86 - Eliminate duplicate marker commands on bus resets
87 - Handle outstanding commands appropriately on bus/device resets
88 Rev 3.23.27 May 28, 2003, Jes Sorensen
89 - Remove bogus input queue code, let the Linux SCSI layer do the work
90 - Clean up NVRAM handling, only read it once from the card
91 - Add a number of missing default nvram parameters
92 Rev 3.23.26 Beta May 28, 2003, Jes Sorensen
93 - Use completion queue for mailbox commands instead of busy wait
94 Rev 3.23.25 Beta May 27, 2003, James Bottomley
95 - Migrate to use new error handling code
96 Rev 3.23.24 Beta May 21, 2003, James Bottomley
97 - Big endian support
98 - Cleanup data direction code
99 Rev 3.23.23 Beta May 12, 2003, Jes Sorensen
100 - Switch to using MMIO instead of PIO
101 Rev 3.23.22 Beta April 15, 2003, Jes Sorensen
102 - Fix PCI parity problem with 12160 during reset.
103 Rev 3.23.21 Beta April 14, 2003, Jes Sorensen
104 - Use pci_map_page()/pci_unmap_page() instead of map_single version.
105 Rev 3.23.20 Beta April 9, 2003, Jes Sorensen
106 - Remove < 2.4.x support
107 - Introduce HOST_LOCK to make the spin lock changes portable.
108 - Remove a bunch of idiotic and unnecessary typedef's
109 - Kill all leftovers of target-mode support which never worked anyway
110 Rev 3.23.19 Beta April 11, 2002, Linus Torvalds
111 - Do qla1280_pci_config() before calling request_irq() and
112 request_region()
113 - Use pci_dma_hi32() to handle upper word of DMA addresses instead
114 of large shifts
115 - Hand correct arguments to free_irq() in case of failure
116 Rev 3.23.18 Beta April 11, 2002, Jes Sorensen
117 - Run source through Lindent and clean up the output
118 Rev 3.23.17 Beta April 11, 2002, Jes Sorensen
119 - Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32
120 Rev 3.23.16 Beta March 19, 2002, Jes Sorensen
121 - Rely on mailbox commands generating interrupts - do not
122 run qla1280_isr() from ql1280_mailbox_command()
123 - Remove device_reg_t
124 - Integrate ql12160_set_target_parameters() with 1280 version
125 - Make qla1280_setup() non static
126 - Do not call qla1280_check_for_dead_scsi_bus() on every I/O request
127 sent to the card - this command pauses the firmware!!!
128 Rev 3.23.15 Beta March 19, 2002, Jes Sorensen
129 - Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions
130 - Remove a pile of pointless and confusing (srb_t **) and
131 (scsi_lu_t *) typecasts
132 - Explicit mark that we do not use the new error handling (for now)
133 - Remove scsi_qla_host_t and use 'struct' instead
134 - Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled,
135 pci_64bit_slot flags which weren't used for anything anyway
136 - Grab host->host_lock while calling qla1280_isr() from abort()
137 - Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we
138 do not need to save/restore flags in the interrupt handler
139 - Enable interrupts early (before any mailbox access) in preparation
140 for cleaning up the mailbox handling
141 Rev 3.23.14 Beta March 14, 2002, Jes Sorensen
142 - Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace
143 it with proper use of dprintk().
144 - Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take
145 a debug level argument to determine if data is to be printed
146 - Add KERN_* info to printk()
147 Rev 3.23.13 Beta March 14, 2002, Jes Sorensen
148 - Significant cosmetic cleanups
149 - Change debug code to use dprintk() and remove #if mess
150 Rev 3.23.12 Beta March 13, 2002, Jes Sorensen
151 - More cosmetic cleanups, fix places treating return as function
152 - use cpu_relax() in qla1280_debounce_register()
153 Rev 3.23.11 Beta March 13, 2002, Jes Sorensen
154 - Make it compile under 2.5.5
155 Rev 3.23.10 Beta October 1, 2001, Jes Sorensen
156 - Do no typecast short * to long * in QL1280BoardTbl, this
157 broke miserably on big endian boxes
158 Rev 3.23.9 Beta September 30, 2001, Jes Sorensen
159 - Remove pre 2.2 hack for checking for reentrance in interrupt handler
160 - Make data types used to receive from SCSI_{BUS,TCN,LUN}_32
161 unsigned int to match the types from struct scsi_cmnd
162 Rev 3.23.8 Beta September 29, 2001, Jes Sorensen
163 - Remove bogus timer_t typedef from qla1280.h
164 - Remove obsolete pre 2.2 PCI setup code, use proper #define's
165 for PCI_ values, call pci_set_master()
166 - Fix memleak of qla1280_buffer on module unload
167 - Only compile module parsing code #ifdef MODULE - should be
168 changed to use individual MODULE_PARM's later
169 - Remove dummy_buffer that was never modified nor printed
170 - ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove
171 #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls
172 - Remove \r from print statements, this is Linux, not DOS
173 - Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK}
174 dummy macros
175 - Remove C++ compile hack in header file as Linux driver are not
176 supposed to be compiled as C++
177 - Kill MS_64BITS macro as it makes the code more readable
178 - Remove unnecessary flags.in_interrupts bit
179 Rev 3.23.7 Beta August 20, 2001, Jes Sorensen
180 - Dont' check for set flags on q->q_flag one by one in qla1280_next()
181 - Check whether the interrupt was generated by the QLA1280 before
182 doing any processing
183 - qla1280_status_entry(): Only zero out part of sense_buffer that
184 is not being copied into
185 - Remove more superflouous typecasts
186 - qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy()
187 Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel
188 - Don't walk the entire list in qla1280_putq_t() just to directly
189 grab the pointer to the last element afterwards
190 Rev 3.23.5 Beta August 9, 2001, Jes Sorensen
191 - Don't use IRQF_DISABLED, it's use is deprecated for this kinda driver
192 Rev 3.23.4 Beta August 8, 2001, Jes Sorensen
193 - Set dev->max_sectors to 1024
194 Rev 3.23.3 Beta August 6, 2001, Jes Sorensen
195 - Provide compat macros for pci_enable_device(), pci_find_subsys()
196 and scsi_set_pci_device()
197 - Call scsi_set_pci_device() for all devices
198 - Reduce size of kernel version dependent device probe code
199 - Move duplicate probe/init code to separate function
200 - Handle error if qla1280_mem_alloc() fails
201 - Kill OFFSET() macro and use Linux's PCI definitions instead
202 - Kill private structure defining PCI config space (struct config_reg)
203 - Only allocate I/O port region if not in MMIO mode
204 - Remove duplicate (unused) sanity check of sife of srb_t
205 Rev 3.23.2 Beta August 6, 2001, Jes Sorensen
206 - Change home-brew memset() implementations to use memset()
207 - Remove all references to COMTRACE() - accessing a PC's COM2 serial
208 port directly is not legal under Linux.
209 Rev 3.23.1 Beta April 24, 2001, Jes Sorensen
210 - Remove pre 2.2 kernel support
211 - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat)
212 - Fix MMIO access to use readl/writel instead of directly
213 dereferencing pointers
214 - Nuke MSDOS debugging code
215 - Change true/false data types to int from uint8_t
216 - Use int for counters instead of uint8_t etc.
217 - Clean up size & byte order conversion macro usage
218 Rev 3.23 Beta January 11, 2001 BN Qlogic
219 - Added check of device_id when handling non
220 QLA12160s during detect().
221 Rev 3.22 Beta January 5, 2001 BN Qlogic
222 - Changed queue_task() to schedule_task()
223 for kernels 2.4.0 and higher.
224 Note: 2.4.0-testxx kernels released prior to
225 the actual 2.4.0 kernel release on January 2001
226 will get compile/link errors with schedule_task().
227 Please update your kernel to released 2.4.0 level,
228 or comment lines in this file flagged with 3.22
229 to resolve compile/link error of schedule_task().
230 - Added -DCONFIG_SMP in addition to -D__SMP__
231 in Makefile for 2.4.0 builds of driver as module.
232 Rev 3.21 Beta January 4, 2001 BN Qlogic
233 - Changed criteria of 64/32 Bit mode of HBA
234 operation according to BITS_PER_LONG rather
235 than HBA's NVRAM setting of >4Gig memory bit;
236 so that the HBA auto-configures without the need
237 to setup each system individually.
238 Rev 3.20 Beta December 5, 2000 BN Qlogic
239 - Added priority handling to IA-64 onboard SCSI
240 ISP12160 chip for kernels greater than 2.3.18.
241 - Added irqrestore for qla1280_intr_handler.
242 - Enabled /proc/scsi/qla1280 interface.
243 - Clear /proc/scsi/qla1280 counters in detect().
244 Rev 3.19 Beta October 13, 2000 BN Qlogic
245 - Declare driver_template for new kernel
246 (2.4.0 and greater) scsi initialization scheme.
247 - Update /proc/scsi entry for 2.3.18 kernels and
248 above as qla1280
249 Rev 3.18 Beta October 10, 2000 BN Qlogic
250 - Changed scan order of adapters to map
251 the QLA12160 followed by the QLA1280.
252 Rev 3.17 Beta September 18, 2000 BN Qlogic
253 - Removed warnings for 32 bit 2.4.x compiles
254 - Corrected declared size for request and response
255 DMA addresses that are kept in each ha
256 Rev. 3.16 Beta August 25, 2000 BN Qlogic
257 - Corrected 64 bit addressing issue on IA-64
258 where the upper 32 bits were not properly
259 passed to the RISC engine.
260 Rev. 3.15 Beta August 22, 2000 BN Qlogic
261 - Modified qla1280_setup_chip to properly load
262 ISP firmware for greater that 4 Gig memory on IA-64
263 Rev. 3.14 Beta August 16, 2000 BN Qlogic
264 - Added setting of dma_mask to full 64 bit
265 if flags.enable_64bit_addressing is set in NVRAM
266 Rev. 3.13 Beta August 16, 2000 BN Qlogic
267 - Use new PCI DMA mapping APIs for 2.4.x kernel
268 Rev. 3.12 July 18, 2000 Redhat & BN Qlogic
269 - Added check of pci_enable_device to detect() for 2.3.x
270 - Use pci_resource_start() instead of
271 pdev->resource[0].start in detect() for 2.3.x
272 - Updated driver version
273 Rev. 3.11 July 14, 2000 BN Qlogic
274 - Updated SCSI Firmware to following versions:
275 qla1x80: 8.13.08
276 qla1x160: 10.04.08
277 - Updated driver version to 3.11
278 Rev. 3.10 June 23, 2000 BN Qlogic
279 - Added filtering of AMI SubSys Vendor ID devices
280 Rev. 3.9
281 - DEBUG_QLA1280 undefined and new version BN Qlogic
282 Rev. 3.08b May 9, 2000 MD Dell
283 - Added logic to check against AMI subsystem vendor ID
284 Rev. 3.08 May 4, 2000 DG Qlogic
285 - Added logic to check for PCI subsystem ID.
286 Rev. 3.07 Apr 24, 2000 DG & BN Qlogic
287 - Updated SCSI Firmware to following versions:
288 qla12160: 10.01.19
289 qla1280: 8.09.00
290 Rev. 3.06 Apr 12, 2000 DG & BN Qlogic
291 - Internal revision; not released
292 Rev. 3.05 Mar 28, 2000 DG & BN Qlogic
293 - Edit correction for virt_to_bus and PROC.
294 Rev. 3.04 Mar 28, 2000 DG & BN Qlogic
295 - Merge changes from ia64 port.
296 Rev. 3.03 Mar 28, 2000 BN Qlogic
297 - Increase version to reflect new code drop with compile fix
298 of issue with inclusion of linux/spinlock for 2.3 kernels
299 Rev. 3.02 Mar 15, 2000 BN Qlogic
300 - Merge qla1280_proc_info from 2.10 code base
301 Rev. 3.01 Feb 10, 2000 BN Qlogic
302 - Corrected code to compile on a 2.2.x kernel.
303 Rev. 3.00 Jan 17, 2000 DG Qlogic
304 - Added 64-bit support.
305 Rev. 2.07 Nov 9, 1999 DG Qlogic
306 - Added new routine to set target parameters for ISP12160.
307 Rev. 2.06 Sept 10, 1999 DG Qlogic
308 - Added support for ISP12160 Ultra 3 chip.
309 Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont
310 - Modified code to remove errors generated when compiling with
311 Cygnus IA64 Compiler.
312 - Changed conversion of pointers to unsigned longs instead of integers.
313 - Changed type of I/O port variables from uint32_t to unsigned long.
314 - Modified OFFSET macro to work with 64-bit as well as 32-bit.
315 - Changed sprintf and printk format specifiers for pointers to %p.
316 - Changed some int to long type casts where needed in sprintf & printk.
317 - Added l modifiers to sprintf and printk format specifiers for longs.
318 - Removed unused local variables.
319 Rev. 1.20 June 8, 1999 DG, Qlogic
320 Changes to support RedHat release 6.0 (kernel 2.2.5).
321 - Added SCSI exclusive access lock (io_request_lock) when accessing
322 the adapter.
323 - Added changes for the new LINUX interface template. Some new error
324 handling routines have been added to the template, but for now we
325 will use the old ones.
326 - Initial Beta Release.
327*****************************************************************************/
328
329
330#include <linux/module.h>
331
332#include <linux/types.h>
333#include <linux/string.h>
334#include <linux/errno.h>
335#include <linux/kernel.h>
336#include <linux/ioport.h>
337#include <linux/delay.h>
338#include <linux/timer.h>
339#include <linux/pci.h>
340#include <linux/proc_fs.h>
341#include <linux/stat.h>
342#include <linux/pci_ids.h>
343#include <linux/interrupt.h>
344#include <linux/init.h>
345#include <linux/dma-mapping.h>
346#include <linux/firmware.h>
347
348#include <asm/io.h>
349#include <asm/irq.h>
350#include <asm/byteorder.h>
351#include <asm/processor.h>
352#include <asm/types.h>
353
354#include <scsi/scsi.h>
355#include <scsi/scsi_cmnd.h>
356#include <scsi/scsi_device.h>
357#include <scsi/scsi_host.h>
358#include <scsi/scsi_tcq.h>
359
360
361/*
362 * Compile time Options:
363 * 0 - Disable and 1 - Enable
364 */
365#define DEBUG_QLA1280_INTR 0
366#define DEBUG_PRINT_NVRAM 0
367#define DEBUG_QLA1280 0
368
369#define MEMORY_MAPPED_IO 1
370
371#include "qla1280.h"
372
373#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
374#define QLA_64BIT_PTR 1
375#endif
376
377#define NVRAM_DELAY() udelay(500) /* 2 microseconds */
378
379#define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020)
380#define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \
381 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240)
382#define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \
383 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160)
384
385
386static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *);
387static void qla1280_remove_one(struct pci_dev *);
388
389/*
390 * QLogic Driver Support Function Prototypes.
391 */
392static void qla1280_done(struct scsi_qla_host *);
393static int qla1280_get_token(char *);
394static int qla1280_setup(char *s) __init;
395
396/*
397 * QLogic ISP1280 Hardware Support Function Prototypes.
398 */
399static int qla1280_load_firmware(struct scsi_qla_host *);
400static int qla1280_init_rings(struct scsi_qla_host *);
401static int qla1280_nvram_config(struct scsi_qla_host *);
402static int qla1280_mailbox_command(struct scsi_qla_host *,
403 uint8_t, uint16_t *);
404static int qla1280_bus_reset(struct scsi_qla_host *, int);
405static int qla1280_device_reset(struct scsi_qla_host *, int, int);
406static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int);
407static int qla1280_abort_isp(struct scsi_qla_host *);
408#ifdef QLA_64BIT_PTR
409static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *);
410#else
411static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *);
412#endif
413static void qla1280_nv_write(struct scsi_qla_host *, uint16_t);
414static void qla1280_poll(struct scsi_qla_host *);
415static void qla1280_reset_adapter(struct scsi_qla_host *);
416static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8);
417static void qla1280_isp_cmd(struct scsi_qla_host *);
418static void qla1280_isr(struct scsi_qla_host *, struct list_head *);
419static void qla1280_rst_aen(struct scsi_qla_host *);
420static void qla1280_status_entry(struct scsi_qla_host *, struct response *,
421 struct list_head *);
422static void qla1280_error_entry(struct scsi_qla_host *, struct response *,
423 struct list_head *);
424static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t);
425static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t);
426static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *);
427static request_t *qla1280_req_pkt(struct scsi_qla_host *);
428static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *,
429 unsigned int);
430static void qla1280_get_target_parameters(struct scsi_qla_host *,
431 struct scsi_device *);
432static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int);
433
434
435static struct qla_driver_setup driver_setup;
436
437/*
438 * convert scsi data direction to request_t control flags
439 */
440static inline uint16_t
441qla1280_data_direction(struct scsi_cmnd *cmnd)
442{
443 switch(cmnd->sc_data_direction) {
444 case DMA_FROM_DEVICE:
445 return BIT_5;
446 case DMA_TO_DEVICE:
447 return BIT_6;
448 case DMA_BIDIRECTIONAL:
449 return BIT_5 | BIT_6;
450 /*
451 * We could BUG() on default here if one of the four cases aren't
452 * met, but then again if we receive something like that from the
453 * SCSI layer we have more serious problems. This shuts up GCC.
454 */
455 case DMA_NONE:
456 default:
457 return 0;
458 }
459}
460
461#if DEBUG_QLA1280
462static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd);
463static void __qla1280_dump_buffer(char *, int);
464#endif
465
466
467/*
468 * insmod needs to find the variable and make it point to something
469 */
470#ifdef MODULE
471static char *qla1280;
472
473/* insmod qla1280 options=verbose" */
474module_param(qla1280, charp, 0);
475#else
476__setup("qla1280=", qla1280_setup);
477#endif
478
479
480/*
481 * We use the scsi_pointer structure that's included with each scsi_command
482 * to overlay our struct srb over it. qla1280_init() checks that a srb is not
483 * bigger than a scsi_pointer.
484 */
485
486#define CMD_SP(Cmnd) &Cmnd->SCp
487#define CMD_CDBLEN(Cmnd) Cmnd->cmd_len
488#define CMD_CDBP(Cmnd) Cmnd->cmnd
489#define CMD_SNSP(Cmnd) Cmnd->sense_buffer
490#define CMD_SNSLEN(Cmnd) SCSI_SENSE_BUFFERSIZE
491#define CMD_RESULT(Cmnd) Cmnd->result
492#define CMD_HANDLE(Cmnd) Cmnd->host_scribble
493#define CMD_REQUEST(Cmnd) Cmnd->request->cmd
494
495#define CMD_HOST(Cmnd) Cmnd->device->host
496#define SCSI_BUS_32(Cmnd) Cmnd->device->channel
497#define SCSI_TCN_32(Cmnd) Cmnd->device->id
498#define SCSI_LUN_32(Cmnd) Cmnd->device->lun
499
500
501/*****************************************/
502/* ISP Boards supported by this driver */
503/*****************************************/
504
505struct qla_boards {
506 char *name; /* Board ID String */
507 int numPorts; /* Number of SCSI ports */
508 int fw_index; /* index into qla1280_fw_tbl for firmware */
509};
510
511/* NOTE: the last argument in each entry is used to index ql1280_board_tbl */
512static struct pci_device_id qla1280_pci_tbl[] = {
513 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160,
514 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
515 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
516 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
517 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080,
518 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
519 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240,
520 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
521 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280,
522 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
523 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160,
524 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
525 {0,}
526};
527MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl);
528
529DEFINE_MUTEX(qla1280_firmware_mutex);
530
531struct qla_fw {
532 char *fwname;
533 const struct firmware *fw;
534};
535
536#define QL_NUM_FW_IMAGES 3
537
538struct qla_fw qla1280_fw_tbl[QL_NUM_FW_IMAGES] = {
539 {"qlogic/1040.bin", NULL}, /* image 0 */
540 {"qlogic/1280.bin", NULL}, /* image 1 */
541 {"qlogic/12160.bin", NULL}, /* image 2 */
542};
543
544/* NOTE: Order of boards in this table must match order in qla1280_pci_tbl */
545static struct qla_boards ql1280_board_tbl[] = {
546 {.name = "QLA12160", .numPorts = 2, .fw_index = 2},
547 {.name = "QLA1040" , .numPorts = 1, .fw_index = 0},
548 {.name = "QLA1080" , .numPorts = 1, .fw_index = 1},
549 {.name = "QLA1240" , .numPorts = 2, .fw_index = 1},
550 {.name = "QLA1280" , .numPorts = 2, .fw_index = 1},
551 {.name = "QLA10160", .numPorts = 1, .fw_index = 2},
552 {.name = " ", .numPorts = 0, .fw_index = -1},
553};
554
555static int qla1280_verbose = 1;
556
557#if DEBUG_QLA1280
558static int ql_debug_level = 1;
559#define dprintk(level, format, a...) \
560 do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0)
561#define qla1280_dump_buffer(level, buf, size) \
562 if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size)
563#define qla1280_print_scsi_cmd(level, cmd) \
564 if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd)
565#else
566#define ql_debug_level 0
567#define dprintk(level, format, a...) do{}while(0)
568#define qla1280_dump_buffer(a, b, c) do{}while(0)
569#define qla1280_print_scsi_cmd(a, b) do{}while(0)
570#endif
571
572#define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x);
573#define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x);
574#define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x);
575#define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x);
576
577
578static int qla1280_read_nvram(struct scsi_qla_host *ha)
579{
580 uint16_t *wptr;
581 uint8_t chksum;
582 int cnt, i;
583 struct nvram *nv;
584
585 ENTER("qla1280_read_nvram");
586
587 if (driver_setup.no_nvram)
588 return 1;
589
590 printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no);
591
592 wptr = (uint16_t *)&ha->nvram;
593 nv = &ha->nvram;
594 chksum = 0;
595 for (cnt = 0; cnt < 3; cnt++) {
596 *wptr = qla1280_get_nvram_word(ha, cnt);
597 chksum += *wptr & 0xff;
598 chksum += (*wptr >> 8) & 0xff;
599 wptr++;
600 }
601
602 if (nv->id0 != 'I' || nv->id1 != 'S' ||
603 nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) {
604 dprintk(2, "Invalid nvram ID or version!\n");
605 chksum = 1;
606 } else {
607 for (; cnt < sizeof(struct nvram); cnt++) {
608 *wptr = qla1280_get_nvram_word(ha, cnt);
609 chksum += *wptr & 0xff;
610 chksum += (*wptr >> 8) & 0xff;
611 wptr++;
612 }
613 }
614
615 dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x"
616 " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3,
617 nv->version);
618
619
620 if (chksum) {
621 if (!driver_setup.no_nvram)
622 printk(KERN_WARNING "scsi(%ld): Unable to identify or "
623 "validate NVRAM checksum, using default "
624 "settings\n", ha->host_no);
625 ha->nvram_valid = 0;
626 } else
627 ha->nvram_valid = 1;
628
629 /* The firmware interface is, um, interesting, in that the
630 * actual firmware image on the chip is little endian, thus,
631 * the process of taking that image to the CPU would end up
632 * little endian. However, the firmware interface requires it
633 * to be read a word (two bytes) at a time.
634 *
635 * The net result of this would be that the word (and
636 * doubleword) quantites in the firmware would be correct, but
637 * the bytes would be pairwise reversed. Since most of the
638 * firmware quantites are, in fact, bytes, we do an extra
639 * le16_to_cpu() in the firmware read routine.
640 *
641 * The upshot of all this is that the bytes in the firmware
642 * are in the correct places, but the 16 and 32 bit quantites
643 * are still in little endian format. We fix that up below by
644 * doing extra reverses on them */
645 nv->isp_parameter = cpu_to_le16(nv->isp_parameter);
646 nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w);
647 for(i = 0; i < MAX_BUSES; i++) {
648 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout);
649 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth);
650 }
651 dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n");
652 LEAVE("qla1280_read_nvram");
653
654 return chksum;
655}
656
657/**************************************************************************
658 * qla1280_info
659 * Return a string describing the driver.
660 **************************************************************************/
661static const char *
662qla1280_info(struct Scsi_Host *host)
663{
664 static char qla1280_scsi_name_buffer[125];
665 char *bp;
666 struct scsi_qla_host *ha;
667 struct qla_boards *bdp;
668
669 bp = &qla1280_scsi_name_buffer[0];
670 ha = (struct scsi_qla_host *)host->hostdata;
671 bdp = &ql1280_board_tbl[ha->devnum];
672 memset(bp, 0, sizeof(qla1280_scsi_name_buffer));
673
674 sprintf (bp,
675 "QLogic %s PCI to SCSI Host Adapter\n"
676 " Firmware version: %2d.%02d.%02d, Driver version %s",
677 &bdp->name[0], ha->fwver1, ha->fwver2, ha->fwver3,
678 QLA1280_VERSION);
679 return bp;
680}
681
682/**************************************************************************
683 * qla1280_queuecommand
684 * Queue a command to the controller.
685 *
686 * Note:
687 * The mid-level driver tries to ensures that queuecommand never gets invoked
688 * concurrently with itself or the interrupt handler (although the
689 * interrupt handler may call this routine as part of request-completion
690 * handling). Unfortunely, it sometimes calls the scheduler in interrupt
691 * context which is a big NO! NO!.
692 **************************************************************************/
693static int
694qla1280_queuecommand_lck(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
695{
696 struct Scsi_Host *host = cmd->device->host;
697 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
698 struct srb *sp = (struct srb *)CMD_SP(cmd);
699 int status;
700
701 cmd->scsi_done = fn;
702 sp->cmd = cmd;
703 sp->flags = 0;
704 sp->wait = NULL;
705 CMD_HANDLE(cmd) = (unsigned char *)NULL;
706
707 qla1280_print_scsi_cmd(5, cmd);
708
709#ifdef QLA_64BIT_PTR
710 /*
711 * Using 64 bit commands if the PCI bridge doesn't support it is a
712 * bit wasteful, however this should really only happen if one's
713 * PCI controller is completely broken, like the BCM1250. For
714 * sane hardware this is not an issue.
715 */
716 status = qla1280_64bit_start_scsi(ha, sp);
717#else
718 status = qla1280_32bit_start_scsi(ha, sp);
719#endif
720 return status;
721}
722
723static DEF_SCSI_QCMD(qla1280_queuecommand)
724
725enum action {
726 ABORT_COMMAND,
727 DEVICE_RESET,
728 BUS_RESET,
729 ADAPTER_RESET,
730};
731
732
733static void qla1280_mailbox_timeout(struct timer_list *t)
734{
735 struct scsi_qla_host *ha = from_timer(ha, t, mailbox_timer);
736 struct device_reg __iomem *reg;
737 reg = ha->iobase;
738
739 ha->mailbox_out[0] = RD_REG_WORD(®->mailbox0);
740 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
741 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
742 RD_REG_WORD(®->ictrl), RD_REG_WORD(®->istatus));
743 complete(ha->mailbox_wait);
744}
745
746static int
747_qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp,
748 struct completion *wait)
749{
750 int status = FAILED;
751 struct scsi_cmnd *cmd = sp->cmd;
752
753 spin_unlock_irq(ha->host->host_lock);
754 wait_for_completion_timeout(wait, 4*HZ);
755 spin_lock_irq(ha->host->host_lock);
756 sp->wait = NULL;
757 if(CMD_HANDLE(cmd) == COMPLETED_HANDLE) {
758 status = SUCCESS;
759 (*cmd->scsi_done)(cmd);
760 }
761 return status;
762}
763
764static int
765qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp)
766{
767 DECLARE_COMPLETION_ONSTACK(wait);
768
769 sp->wait = &wait;
770 return _qla1280_wait_for_single_command(ha, sp, &wait);
771}
772
773static int
774qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target)
775{
776 int cnt;
777 int status;
778 struct srb *sp;
779 struct scsi_cmnd *cmd;
780
781 status = SUCCESS;
782
783 /*
784 * Wait for all commands with the designated bus/target
785 * to be completed by the firmware
786 */
787 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
788 sp = ha->outstanding_cmds[cnt];
789 if (sp) {
790 cmd = sp->cmd;
791
792 if (bus >= 0 && SCSI_BUS_32(cmd) != bus)
793 continue;
794 if (target >= 0 && SCSI_TCN_32(cmd) != target)
795 continue;
796
797 status = qla1280_wait_for_single_command(ha, sp);
798 if (status == FAILED)
799 break;
800 }
801 }
802 return status;
803}
804
805/**************************************************************************
806 * qla1280_error_action
807 * The function will attempt to perform a specified error action and
808 * wait for the results (or time out).
809 *
810 * Input:
811 * cmd = Linux SCSI command packet of the command that cause the
812 * bus reset.
813 * action = error action to take (see action_t)
814 *
815 * Returns:
816 * SUCCESS or FAILED
817 *
818 **************************************************************************/
819static int
820qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
821{
822 struct scsi_qla_host *ha;
823 int bus, target, lun;
824 struct srb *sp;
825 int i, found;
826 int result=FAILED;
827 int wait_for_bus=-1;
828 int wait_for_target = -1;
829 DECLARE_COMPLETION_ONSTACK(wait);
830
831 ENTER("qla1280_error_action");
832
833 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
834 sp = (struct srb *)CMD_SP(cmd);
835 bus = SCSI_BUS_32(cmd);
836 target = SCSI_TCN_32(cmd);
837 lun = SCSI_LUN_32(cmd);
838
839 dprintk(4, "error_action %i, istatus 0x%04x\n", action,
840 RD_REG_WORD(&ha->iobase->istatus));
841
842 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
843 RD_REG_WORD(&ha->iobase->host_cmd),
844 RD_REG_WORD(&ha->iobase->ictrl), jiffies);
845
846 if (qla1280_verbose)
847 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
848 "Handle=0x%p, action=0x%x\n",
849 ha->host_no, cmd, CMD_HANDLE(cmd), action);
850
851 /*
852 * Check to see if we have the command in the outstanding_cmds[]
853 * array. If not then it must have completed before this error
854 * action was initiated. If the error_action isn't ABORT_COMMAND
855 * then the driver must proceed with the requested action.
856 */
857 found = -1;
858 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
859 if (sp == ha->outstanding_cmds[i]) {
860 found = i;
861 sp->wait = &wait; /* we'll wait for it to complete */
862 break;
863 }
864 }
865
866 if (found < 0) { /* driver doesn't have command */
867 result = SUCCESS;
868 if (qla1280_verbose) {
869 printk(KERN_INFO
870 "scsi(%ld:%d:%d:%d): specified command has "
871 "already completed.\n", ha->host_no, bus,
872 target, lun);
873 }
874 }
875
876 switch (action) {
877
878 case ABORT_COMMAND:
879 dprintk(1, "qla1280: RISC aborting command\n");
880 /*
881 * The abort might fail due to race when the host_lock
882 * is released to issue the abort. As such, we
883 * don't bother to check the return status.
884 */
885 if (found >= 0)
886 qla1280_abort_command(ha, sp, found);
887 break;
888
889 case DEVICE_RESET:
890 if (qla1280_verbose)
891 printk(KERN_INFO
892 "scsi(%ld:%d:%d:%d): Queueing device reset "
893 "command.\n", ha->host_no, bus, target, lun);
894 if (qla1280_device_reset(ha, bus, target) == 0) {
895 /* issued device reset, set wait conditions */
896 wait_for_bus = bus;
897 wait_for_target = target;
898 }
899 break;
900
901 case BUS_RESET:
902 if (qla1280_verbose)
903 printk(KERN_INFO "qla1280(%ld:%d): Issued bus "
904 "reset.\n", ha->host_no, bus);
905 if (qla1280_bus_reset(ha, bus) == 0) {
906 /* issued bus reset, set wait conditions */
907 wait_for_bus = bus;
908 }
909 break;
910
911 case ADAPTER_RESET:
912 default:
913 if (qla1280_verbose) {
914 printk(KERN_INFO
915 "scsi(%ld): Issued ADAPTER RESET\n",
916 ha->host_no);
917 printk(KERN_INFO "scsi(%ld): I/O processing will "
918 "continue automatically\n", ha->host_no);
919 }
920 ha->flags.reset_active = 1;
921
922 if (qla1280_abort_isp(ha) != 0) { /* it's dead */
923 result = FAILED;
924 }
925
926 ha->flags.reset_active = 0;
927 }
928
929 /*
930 * At this point, the host_lock has been released and retaken
931 * by the issuance of the mailbox command.
932 * Wait for the command passed in by the mid-layer if it
933 * was found by the driver. It might have been returned
934 * between eh recovery steps, hence the check of the "found"
935 * variable.
936 */
937
938 if (found >= 0)
939 result = _qla1280_wait_for_single_command(ha, sp, &wait);
940
941 if (action == ABORT_COMMAND && result != SUCCESS) {
942 printk(KERN_WARNING
943 "scsi(%li:%i:%i:%i): "
944 "Unable to abort command!\n",
945 ha->host_no, bus, target, lun);
946 }
947
948 /*
949 * If the command passed in by the mid-layer has been
950 * returned by the board, then wait for any additional
951 * commands which are supposed to complete based upon
952 * the error action.
953 *
954 * All commands are unconditionally returned during a
955 * call to qla1280_abort_isp(), ADAPTER_RESET. No need
956 * to wait for them.
957 */
958 if (result == SUCCESS && wait_for_bus >= 0) {
959 result = qla1280_wait_for_pending_commands(ha,
960 wait_for_bus, wait_for_target);
961 }
962
963 dprintk(1, "RESET returning %d\n", result);
964
965 LEAVE("qla1280_error_action");
966 return result;
967}
968
969/**************************************************************************
970 * qla1280_abort
971 * Abort the specified SCSI command(s).
972 **************************************************************************/
973static int
974qla1280_eh_abort(struct scsi_cmnd * cmd)
975{
976 int rc;
977
978 spin_lock_irq(cmd->device->host->host_lock);
979 rc = qla1280_error_action(cmd, ABORT_COMMAND);
980 spin_unlock_irq(cmd->device->host->host_lock);
981
982 return rc;
983}
984
985/**************************************************************************
986 * qla1280_device_reset
987 * Reset the specified SCSI device
988 **************************************************************************/
989static int
990qla1280_eh_device_reset(struct scsi_cmnd *cmd)
991{
992 int rc;
993
994 spin_lock_irq(cmd->device->host->host_lock);
995 rc = qla1280_error_action(cmd, DEVICE_RESET);
996 spin_unlock_irq(cmd->device->host->host_lock);
997
998 return rc;
999}
1000
1001/**************************************************************************
1002 * qla1280_bus_reset
1003 * Reset the specified bus.
1004 **************************************************************************/
1005static int
1006qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
1007{
1008 int rc;
1009
1010 spin_lock_irq(cmd->device->host->host_lock);
1011 rc = qla1280_error_action(cmd, BUS_RESET);
1012 spin_unlock_irq(cmd->device->host->host_lock);
1013
1014 return rc;
1015}
1016
1017/**************************************************************************
1018 * qla1280_adapter_reset
1019 * Reset the specified adapter (both channels)
1020 **************************************************************************/
1021static int
1022qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
1023{
1024 int rc;
1025
1026 spin_lock_irq(cmd->device->host->host_lock);
1027 rc = qla1280_error_action(cmd, ADAPTER_RESET);
1028 spin_unlock_irq(cmd->device->host->host_lock);
1029
1030 return rc;
1031}
1032
1033static int
1034qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1035 sector_t capacity, int geom[])
1036{
1037 int heads, sectors, cylinders;
1038
1039 heads = 64;
1040 sectors = 32;
1041 cylinders = (unsigned long)capacity / (heads * sectors);
1042 if (cylinders > 1024) {
1043 heads = 255;
1044 sectors = 63;
1045 cylinders = (unsigned long)capacity / (heads * sectors);
1046 /* if (cylinders > 1023)
1047 cylinders = 1023; */
1048 }
1049
1050 geom[0] = heads;
1051 geom[1] = sectors;
1052 geom[2] = cylinders;
1053
1054 return 0;
1055}
1056
1057
1058/* disable risc and host interrupts */
1059static inline void
1060qla1280_disable_intrs(struct scsi_qla_host *ha)
1061{
1062 WRT_REG_WORD(&ha->iobase->ictrl, 0);
1063 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1064}
1065
1066/* enable risc and host interrupts */
1067static inline void
1068qla1280_enable_intrs(struct scsi_qla_host *ha)
1069{
1070 WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC));
1071 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1072}
1073
1074/**************************************************************************
1075 * qla1280_intr_handler
1076 * Handles the H/W interrupt
1077 **************************************************************************/
1078static irqreturn_t
1079qla1280_intr_handler(int irq, void *dev_id)
1080{
1081 struct scsi_qla_host *ha;
1082 struct device_reg __iomem *reg;
1083 u16 data;
1084 int handled = 0;
1085
1086 ENTER_INTR ("qla1280_intr_handler");
1087 ha = (struct scsi_qla_host *)dev_id;
1088
1089 spin_lock(ha->host->host_lock);
1090
1091 ha->isr_count++;
1092 reg = ha->iobase;
1093
1094 qla1280_disable_intrs(ha);
1095
1096 data = qla1280_debounce_register(®->istatus);
1097 /* Check for pending interrupts. */
1098 if (data & RISC_INT) {
1099 qla1280_isr(ha, &ha->done_q);
1100 handled = 1;
1101 }
1102 if (!list_empty(&ha->done_q))
1103 qla1280_done(ha);
1104
1105 spin_unlock(ha->host->host_lock);
1106
1107 qla1280_enable_intrs(ha);
1108
1109 LEAVE_INTR("qla1280_intr_handler");
1110 return IRQ_RETVAL(handled);
1111}
1112
1113
1114static int
1115qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
1116{
1117 uint8_t mr;
1118 uint16_t mb[MAILBOX_REGISTER_COUNT];
1119 struct nvram *nv;
1120 int status, lun;
1121
1122 nv = &ha->nvram;
1123
1124 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
1125
1126 /* Set Target Parameters. */
1127 mb[0] = MBC_SET_TARGET_PARAMETERS;
1128 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1129 mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8;
1130 mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9;
1131 mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10;
1132 mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11;
1133 mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12;
1134 mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13;
1135 mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14;
1136 mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15;
1137
1138 if (IS_ISP1x160(ha)) {
1139 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
1140 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8);
1141 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
1142 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
1143 mr |= BIT_6;
1144 } else {
1145 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8);
1146 }
1147 mb[3] |= nv->bus[bus].target[target].sync_period;
1148
1149 status = qla1280_mailbox_command(ha, mr, mb);
1150
1151 /* Set Device Queue Parameters. */
1152 for (lun = 0; lun < MAX_LUNS; lun++) {
1153 mb[0] = MBC_SET_DEVICE_QUEUE;
1154 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1155 mb[1] |= lun;
1156 mb[2] = nv->bus[bus].max_queue_depth;
1157 mb[3] = nv->bus[bus].target[target].execution_throttle;
1158 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1159 }
1160
1161 if (status)
1162 printk(KERN_WARNING "scsi(%ld:%i:%i): "
1163 "qla1280_set_target_parameters() failed\n",
1164 ha->host_no, bus, target);
1165 return status;
1166}
1167
1168
1169/**************************************************************************
1170 * qla1280_slave_configure
1171 *
1172 * Description:
1173 * Determines the queue depth for a given device. There are two ways
1174 * a queue depth can be obtained for a tagged queueing device. One
1175 * way is the default queue depth which is determined by whether
1176 * If it is defined, then it is used
1177 * as the default queue depth. Otherwise, we use either 4 or 8 as the
1178 * default queue depth (dependent on the number of hardware SCBs).
1179 **************************************************************************/
1180static int
1181qla1280_slave_configure(struct scsi_device *device)
1182{
1183 struct scsi_qla_host *ha;
1184 int default_depth = 3;
1185 int bus = device->channel;
1186 int target = device->id;
1187 int status = 0;
1188 struct nvram *nv;
1189 unsigned long flags;
1190
1191 ha = (struct scsi_qla_host *)device->host->hostdata;
1192 nv = &ha->nvram;
1193
1194 if (qla1280_check_for_dead_scsi_bus(ha, bus))
1195 return 1;
1196
1197 if (device->tagged_supported &&
1198 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
1199 scsi_change_queue_depth(device, ha->bus_settings[bus].hiwat);
1200 } else {
1201 scsi_change_queue_depth(device, default_depth);
1202 }
1203
1204 nv->bus[bus].target[target].parameter.enable_sync = device->sdtr;
1205 nv->bus[bus].target[target].parameter.enable_wide = device->wdtr;
1206 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
1207
1208 if (driver_setup.no_sync ||
1209 (driver_setup.sync_mask &&
1210 (~driver_setup.sync_mask & (1 << target))))
1211 nv->bus[bus].target[target].parameter.enable_sync = 0;
1212 if (driver_setup.no_wide ||
1213 (driver_setup.wide_mask &&
1214 (~driver_setup.wide_mask & (1 << target))))
1215 nv->bus[bus].target[target].parameter.enable_wide = 0;
1216 if (IS_ISP1x160(ha)) {
1217 if (driver_setup.no_ppr ||
1218 (driver_setup.ppr_mask &&
1219 (~driver_setup.ppr_mask & (1 << target))))
1220 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
1221 }
1222
1223 spin_lock_irqsave(ha->host->host_lock, flags);
1224 if (nv->bus[bus].target[target].parameter.enable_sync)
1225 status = qla1280_set_target_parameters(ha, bus, target);
1226 qla1280_get_target_parameters(ha, device);
1227 spin_unlock_irqrestore(ha->host->host_lock, flags);
1228 return status;
1229}
1230
1231
1232/*
1233 * qla1280_done
1234 * Process completed commands.
1235 *
1236 * Input:
1237 * ha = adapter block pointer.
1238 */
1239static void
1240qla1280_done(struct scsi_qla_host *ha)
1241{
1242 struct srb *sp;
1243 struct list_head *done_q;
1244 int bus, target, lun;
1245 struct scsi_cmnd *cmd;
1246
1247 ENTER("qla1280_done");
1248
1249 done_q = &ha->done_q;
1250
1251 while (!list_empty(done_q)) {
1252 sp = list_entry(done_q->next, struct srb, list);
1253
1254 list_del(&sp->list);
1255
1256 cmd = sp->cmd;
1257 bus = SCSI_BUS_32(cmd);
1258 target = SCSI_TCN_32(cmd);
1259 lun = SCSI_LUN_32(cmd);
1260
1261 switch ((CMD_RESULT(cmd) >> 16)) {
1262 case DID_RESET:
1263 /* Issue marker command. */
1264 if (!ha->flags.abort_isp_active)
1265 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
1266 break;
1267 case DID_ABORT:
1268 sp->flags &= ~SRB_ABORT_PENDING;
1269 sp->flags |= SRB_ABORTED;
1270 break;
1271 default:
1272 break;
1273 }
1274
1275 /* Release memory used for this I/O */
1276 scsi_dma_unmap(cmd);
1277
1278 /* Call the mid-level driver interrupt handler */
1279 ha->actthreads--;
1280
1281 if (sp->wait == NULL)
1282 (*(cmd)->scsi_done)(cmd);
1283 else
1284 complete(sp->wait);
1285 }
1286 LEAVE("qla1280_done");
1287}
1288
1289/*
1290 * Translates a ISP error to a Linux SCSI error
1291 */
1292static int
1293qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
1294{
1295 int host_status = DID_ERROR;
1296 uint16_t comp_status = le16_to_cpu(sts->comp_status);
1297 uint16_t state_flags = le16_to_cpu(sts->state_flags);
1298 uint32_t residual_length = le32_to_cpu(sts->residual_length);
1299 uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
1300#if DEBUG_QLA1280_INTR
1301 static char *reason[] = {
1302 "DID_OK",
1303 "DID_NO_CONNECT",
1304 "DID_BUS_BUSY",
1305 "DID_TIME_OUT",
1306 "DID_BAD_TARGET",
1307 "DID_ABORT",
1308 "DID_PARITY",
1309 "DID_ERROR",
1310 "DID_RESET",
1311 "DID_BAD_INTR"
1312 };
1313#endif /* DEBUG_QLA1280_INTR */
1314
1315 ENTER("qla1280_return_status");
1316
1317#if DEBUG_QLA1280_INTR
1318 /*
1319 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
1320 comp_status);
1321 */
1322#endif
1323
1324 switch (comp_status) {
1325 case CS_COMPLETE:
1326 host_status = DID_OK;
1327 break;
1328
1329 case CS_INCOMPLETE:
1330 if (!(state_flags & SF_GOT_BUS))
1331 host_status = DID_NO_CONNECT;
1332 else if (!(state_flags & SF_GOT_TARGET))
1333 host_status = DID_BAD_TARGET;
1334 else if (!(state_flags & SF_SENT_CDB))
1335 host_status = DID_ERROR;
1336 else if (!(state_flags & SF_TRANSFERRED_DATA))
1337 host_status = DID_ERROR;
1338 else if (!(state_flags & SF_GOT_STATUS))
1339 host_status = DID_ERROR;
1340 else if (!(state_flags & SF_GOT_SENSE))
1341 host_status = DID_ERROR;
1342 break;
1343
1344 case CS_RESET:
1345 host_status = DID_RESET;
1346 break;
1347
1348 case CS_ABORTED:
1349 host_status = DID_ABORT;
1350 break;
1351
1352 case CS_TIMEOUT:
1353 host_status = DID_TIME_OUT;
1354 break;
1355
1356 case CS_DATA_OVERRUN:
1357 dprintk(2, "Data overrun 0x%x\n", residual_length);
1358 dprintk(2, "qla1280_return_status: response packet data\n");
1359 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
1360 host_status = DID_ERROR;
1361 break;
1362
1363 case CS_DATA_UNDERRUN:
1364 if ((scsi_bufflen(cp) - residual_length) <
1365 cp->underflow) {
1366 printk(KERN_WARNING
1367 "scsi: Underflow detected - retrying "
1368 "command.\n");
1369 host_status = DID_ERROR;
1370 } else {
1371 scsi_set_resid(cp, residual_length);
1372 host_status = DID_OK;
1373 }
1374 break;
1375
1376 default:
1377 host_status = DID_ERROR;
1378 break;
1379 }
1380
1381#if DEBUG_QLA1280_INTR
1382 dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
1383 reason[host_status], scsi_status);
1384#endif
1385
1386 LEAVE("qla1280_return_status");
1387
1388 return (scsi_status & 0xff) | (host_status << 16);
1389}
1390
1391/****************************************************************************/
1392/* QLogic ISP1280 Hardware Support Functions. */
1393/****************************************************************************/
1394
1395/*
1396 * qla1280_initialize_adapter
1397 * Initialize board.
1398 *
1399 * Input:
1400 * ha = adapter block pointer.
1401 *
1402 * Returns:
1403 * 0 = success
1404 */
1405static int
1406qla1280_initialize_adapter(struct scsi_qla_host *ha)
1407{
1408 struct device_reg __iomem *reg;
1409 int status;
1410 int bus;
1411 unsigned long flags;
1412
1413 ENTER("qla1280_initialize_adapter");
1414
1415 /* Clear adapter flags. */
1416 ha->flags.online = 0;
1417 ha->flags.disable_host_adapter = 0;
1418 ha->flags.reset_active = 0;
1419 ha->flags.abort_isp_active = 0;
1420
1421 /* TODO: implement support for the 1040 nvram format */
1422 if (IS_ISP1040(ha))
1423 driver_setup.no_nvram = 1;
1424
1425 dprintk(1, "Configure PCI space for adapter...\n");
1426
1427 reg = ha->iobase;
1428
1429 /* Insure mailbox registers are free. */
1430 WRT_REG_WORD(®->semaphore, 0);
1431 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
1432 WRT_REG_WORD(®->host_cmd, HC_CLR_HOST_INT);
1433 RD_REG_WORD(®->host_cmd);
1434
1435 if (qla1280_read_nvram(ha)) {
1436 dprintk(2, "qla1280_initialize_adapter: failed to read "
1437 "NVRAM\n");
1438 }
1439
1440 /*
1441 * It's necessary to grab the spin here as qla1280_mailbox_command
1442 * needs to be able to drop the lock unconditionally to wait
1443 * for completion.
1444 */
1445 spin_lock_irqsave(ha->host->host_lock, flags);
1446
1447 status = qla1280_load_firmware(ha);
1448 if (status) {
1449 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
1450 ha->host_no);
1451 goto out;
1452 }
1453
1454 /* Setup adapter based on NVRAM parameters. */
1455 dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
1456 qla1280_nvram_config(ha);
1457
1458 if (ha->flags.disable_host_adapter) {
1459 status = 1;
1460 goto out;
1461 }
1462
1463 status = qla1280_init_rings(ha);
1464 if (status)
1465 goto out;
1466
1467 /* Issue SCSI reset, if we can't reset twice then bus is dead */
1468 for (bus = 0; bus < ha->ports; bus++) {
1469 if (!ha->bus_settings[bus].disable_scsi_reset &&
1470 qla1280_bus_reset(ha, bus) &&
1471 qla1280_bus_reset(ha, bus))
1472 ha->bus_settings[bus].scsi_bus_dead = 1;
1473 }
1474
1475 ha->flags.online = 1;
1476 out:
1477 spin_unlock_irqrestore(ha->host->host_lock, flags);
1478
1479 if (status)
1480 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
1481
1482 LEAVE("qla1280_initialize_adapter");
1483 return status;
1484}
1485
1486/*
1487 * qla1280_request_firmware
1488 * Acquire firmware for chip. Retain in memory
1489 * for error recovery.
1490 *
1491 * Input:
1492 * ha = adapter block pointer.
1493 *
1494 * Returns:
1495 * Pointer to firmware image or an error code
1496 * cast to pointer via ERR_PTR().
1497 */
1498static const struct firmware *
1499qla1280_request_firmware(struct scsi_qla_host *ha)
1500{
1501 const struct firmware *fw;
1502 int err;
1503 int index;
1504 char *fwname;
1505
1506 spin_unlock_irq(ha->host->host_lock);
1507 mutex_lock(&qla1280_firmware_mutex);
1508
1509 index = ql1280_board_tbl[ha->devnum].fw_index;
1510 fw = qla1280_fw_tbl[index].fw;
1511 if (fw)
1512 goto out;
1513
1514 fwname = qla1280_fw_tbl[index].fwname;
1515 err = request_firmware(&fw, fwname, &ha->pdev->dev);
1516
1517 if (err) {
1518 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
1519 fwname, err);
1520 fw = ERR_PTR(err);
1521 goto unlock;
1522 }
1523 if ((fw->size % 2) || (fw->size < 6)) {
1524 printk(KERN_ERR "Invalid firmware length %zu in image \"%s\"\n",
1525 fw->size, fwname);
1526 release_firmware(fw);
1527 fw = ERR_PTR(-EINVAL);
1528 goto unlock;
1529 }
1530
1531 qla1280_fw_tbl[index].fw = fw;
1532
1533 out:
1534 ha->fwver1 = fw->data[0];
1535 ha->fwver2 = fw->data[1];
1536 ha->fwver3 = fw->data[2];
1537 unlock:
1538 mutex_unlock(&qla1280_firmware_mutex);
1539 spin_lock_irq(ha->host->host_lock);
1540 return fw;
1541}
1542
1543/*
1544 * Chip diagnostics
1545 * Test chip for proper operation.
1546 *
1547 * Input:
1548 * ha = adapter block pointer.
1549 *
1550 * Returns:
1551 * 0 = success.
1552 */
1553static int
1554qla1280_chip_diag(struct scsi_qla_host *ha)
1555{
1556 uint16_t mb[MAILBOX_REGISTER_COUNT];
1557 struct device_reg __iomem *reg = ha->iobase;
1558 int status = 0;
1559 int cnt;
1560 uint16_t data;
1561 dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", ®->id_l);
1562
1563 dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
1564
1565 /* Soft reset chip and wait for it to finish. */
1566 WRT_REG_WORD(®->ictrl, ISP_RESET);
1567
1568 /*
1569 * We can't do a traditional PCI write flush here by reading
1570 * back the register. The card will not respond once the reset
1571 * is in action and we end up with a machine check exception
1572 * instead. Nothing to do but wait and hope for the best.
1573 * A portable pci_write_flush(pdev) call would be very useful here.
1574 */
1575 udelay(20);
1576 data = qla1280_debounce_register(®->ictrl);
1577 /*
1578 * Yet another QLogic gem ;-(
1579 */
1580 for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
1581 udelay(5);
1582 data = RD_REG_WORD(®->ictrl);
1583 }
1584
1585 if (!cnt)
1586 goto fail;
1587
1588 /* Reset register cleared by chip reset. */
1589 dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
1590
1591 WRT_REG_WORD(®->cfg_1, 0);
1592
1593 /* Reset RISC and disable BIOS which
1594 allows RISC to execute out of RAM. */
1595 WRT_REG_WORD(®->host_cmd, HC_RESET_RISC |
1596 HC_RELEASE_RISC | HC_DISABLE_BIOS);
1597
1598 RD_REG_WORD(®->id_l); /* Flush PCI write */
1599 data = qla1280_debounce_register(®->mailbox0);
1600
1601 /*
1602 * I *LOVE* this code!
1603 */
1604 for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
1605 udelay(5);
1606 data = RD_REG_WORD(®->mailbox0);
1607 }
1608
1609 if (!cnt)
1610 goto fail;
1611
1612 /* Check product ID of chip */
1613 dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
1614
1615 if (RD_REG_WORD(®->mailbox1) != PROD_ID_1 ||
1616 (RD_REG_WORD(®->mailbox2) != PROD_ID_2 &&
1617 RD_REG_WORD(®->mailbox2) != PROD_ID_2a) ||
1618 RD_REG_WORD(®->mailbox3) != PROD_ID_3 ||
1619 RD_REG_WORD(®->mailbox4) != PROD_ID_4) {
1620 printk(KERN_INFO "qla1280: Wrong product ID = "
1621 "0x%x,0x%x,0x%x,0x%x\n",
1622 RD_REG_WORD(®->mailbox1),
1623 RD_REG_WORD(®->mailbox2),
1624 RD_REG_WORD(®->mailbox3),
1625 RD_REG_WORD(®->mailbox4));
1626 goto fail;
1627 }
1628
1629 /*
1630 * Enable ints early!!!
1631 */
1632 qla1280_enable_intrs(ha);
1633
1634 dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
1635 /* Wrap Incoming Mailboxes Test. */
1636 mb[0] = MBC_MAILBOX_REGISTER_TEST;
1637 mb[1] = 0xAAAA;
1638 mb[2] = 0x5555;
1639 mb[3] = 0xAA55;
1640 mb[4] = 0x55AA;
1641 mb[5] = 0xA5A5;
1642 mb[6] = 0x5A5A;
1643 mb[7] = 0x2525;
1644
1645 status = qla1280_mailbox_command(ha, 0xff, mb);
1646 if (status)
1647 goto fail;
1648
1649 if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
1650 mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
1651 mb[7] != 0x2525) {
1652 printk(KERN_INFO "qla1280: Failed mbox check\n");
1653 goto fail;
1654 }
1655
1656 dprintk(3, "qla1280_chip_diag: exiting normally\n");
1657 return 0;
1658 fail:
1659 dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
1660 return status;
1661}
1662
1663static int
1664qla1280_load_firmware_pio(struct scsi_qla_host *ha)
1665{
1666 /* enter with host_lock acquired */
1667
1668 const struct firmware *fw;
1669 const __le16 *fw_data;
1670 uint16_t risc_address, risc_code_size;
1671 uint16_t mb[MAILBOX_REGISTER_COUNT], i;
1672 int err = 0;
1673
1674 fw = qla1280_request_firmware(ha);
1675 if (IS_ERR(fw))
1676 return PTR_ERR(fw);
1677
1678 fw_data = (const __le16 *)&fw->data[0];
1679 ha->fwstart = __le16_to_cpu(fw_data[2]);
1680
1681 /* Load RISC code. */
1682 risc_address = ha->fwstart;
1683 fw_data = (const __le16 *)&fw->data[6];
1684 risc_code_size = (fw->size - 6) / 2;
1685
1686 for (i = 0; i < risc_code_size; i++) {
1687 mb[0] = MBC_WRITE_RAM_WORD;
1688 mb[1] = risc_address + i;
1689 mb[2] = __le16_to_cpu(fw_data[i]);
1690
1691 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
1692 if (err) {
1693 printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
1694 ha->host_no);
1695 break;
1696 }
1697 }
1698
1699 return err;
1700}
1701
1702#define DUMP_IT_BACK 0 /* for debug of RISC loading */
1703static int
1704qla1280_load_firmware_dma(struct scsi_qla_host *ha)
1705{
1706 /* enter with host_lock acquired */
1707 const struct firmware *fw;
1708 const __le16 *fw_data;
1709 uint16_t risc_address, risc_code_size;
1710 uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
1711 int err = 0, num, i;
1712#if DUMP_IT_BACK
1713 uint8_t *sp, *tbuf;
1714 dma_addr_t p_tbuf;
1715
1716 tbuf = dma_alloc_coherent(&ha->pdev->dev, 8000, &p_tbuf, GFP_KERNEL);
1717 if (!tbuf)
1718 return -ENOMEM;
1719#endif
1720
1721 fw = qla1280_request_firmware(ha);
1722 if (IS_ERR(fw))
1723 return PTR_ERR(fw);
1724
1725 fw_data = (const __le16 *)&fw->data[0];
1726 ha->fwstart = __le16_to_cpu(fw_data[2]);
1727
1728 /* Load RISC code. */
1729 risc_address = ha->fwstart;
1730 fw_data = (const __le16 *)&fw->data[6];
1731 risc_code_size = (fw->size - 6) / 2;
1732
1733 dprintk(1, "%s: DMA RISC code (%i) words\n",
1734 __func__, risc_code_size);
1735
1736 num = 0;
1737 while (risc_code_size > 0) {
1738 int warn __attribute__((unused)) = 0;
1739
1740 cnt = 2000 >> 1;
1741
1742 if (cnt > risc_code_size)
1743 cnt = risc_code_size;
1744
1745 dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p),"
1746 "%d,%d(0x%x)\n",
1747 fw_data, cnt, num, risc_address);
1748 for(i = 0; i < cnt; i++)
1749 ((__le16 *)ha->request_ring)[i] = fw_data[i];
1750
1751 mb[0] = MBC_LOAD_RAM;
1752 mb[1] = risc_address;
1753 mb[4] = cnt;
1754 mb[3] = ha->request_dma & 0xffff;
1755 mb[2] = (ha->request_dma >> 16) & 0xffff;
1756 mb[7] = upper_32_bits(ha->request_dma) & 0xffff;
1757 mb[6] = upper_32_bits(ha->request_dma) >> 16;
1758 dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
1759 __func__, mb[0],
1760 (void *)(long)ha->request_dma,
1761 mb[6], mb[7], mb[2], mb[3]);
1762 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1763 BIT_1 | BIT_0, mb);
1764 if (err) {
1765 printk(KERN_ERR "scsi(%li): Failed to load partial "
1766 "segment of f\n", ha->host_no);
1767 goto out;
1768 }
1769
1770#if DUMP_IT_BACK
1771 mb[0] = MBC_DUMP_RAM;
1772 mb[1] = risc_address;
1773 mb[4] = cnt;
1774 mb[3] = p_tbuf & 0xffff;
1775 mb[2] = (p_tbuf >> 16) & 0xffff;
1776 mb[7] = upper_32_bits(p_tbuf) & 0xffff;
1777 mb[6] = upper_32_bits(p_tbuf) >> 16;
1778
1779 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1780 BIT_1 | BIT_0, mb);
1781 if (err) {
1782 printk(KERN_ERR
1783 "Failed to dump partial segment of f/w\n");
1784 goto out;
1785 }
1786 sp = (uint8_t *)ha->request_ring;
1787 for (i = 0; i < (cnt << 1); i++) {
1788 if (tbuf[i] != sp[i] && warn++ < 10) {
1789 printk(KERN_ERR "%s: FW compare error @ "
1790 "byte(0x%x) loop#=%x\n",
1791 __func__, i, num);
1792 printk(KERN_ERR "%s: FWbyte=%x "
1793 "FWfromChip=%x\n",
1794 __func__, sp[i], tbuf[i]);
1795 /*break; */
1796 }
1797 }
1798#endif
1799 risc_address += cnt;
1800 risc_code_size = risc_code_size - cnt;
1801 fw_data = fw_data + cnt;
1802 num++;
1803 }
1804
1805 out:
1806#if DUMP_IT_BACK
1807 dma_free_coherent(&ha->pdev->dev, 8000, tbuf, p_tbuf);
1808#endif
1809 return err;
1810}
1811
1812static int
1813qla1280_start_firmware(struct scsi_qla_host *ha)
1814{
1815 uint16_t mb[MAILBOX_REGISTER_COUNT];
1816 int err;
1817
1818 dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
1819 __func__);
1820
1821 /* Verify checksum of loaded RISC code. */
1822 mb[0] = MBC_VERIFY_CHECKSUM;
1823 /* mb[1] = ql12_risc_code_addr01; */
1824 mb[1] = ha->fwstart;
1825 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1826 if (err) {
1827 printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no);
1828 return err;
1829 }
1830
1831 /* Start firmware execution. */
1832 dprintk(1, "%s: start firmware running.\n", __func__);
1833 mb[0] = MBC_EXECUTE_FIRMWARE;
1834 mb[1] = ha->fwstart;
1835 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
1836 if (err) {
1837 printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
1838 ha->host_no);
1839 }
1840
1841 return err;
1842}
1843
1844static int
1845qla1280_load_firmware(struct scsi_qla_host *ha)
1846{
1847 /* enter with host_lock taken */
1848 int err;
1849
1850 err = qla1280_chip_diag(ha);
1851 if (err)
1852 goto out;
1853 if (IS_ISP1040(ha))
1854 err = qla1280_load_firmware_pio(ha);
1855 else
1856 err = qla1280_load_firmware_dma(ha);
1857 if (err)
1858 goto out;
1859 err = qla1280_start_firmware(ha);
1860 out:
1861 return err;
1862}
1863
1864/*
1865 * Initialize rings
1866 *
1867 * Input:
1868 * ha = adapter block pointer.
1869 * ha->request_ring = request ring virtual address
1870 * ha->response_ring = response ring virtual address
1871 * ha->request_dma = request ring physical address
1872 * ha->response_dma = response ring physical address
1873 *
1874 * Returns:
1875 * 0 = success.
1876 */
1877static int
1878qla1280_init_rings(struct scsi_qla_host *ha)
1879{
1880 uint16_t mb[MAILBOX_REGISTER_COUNT];
1881 int status = 0;
1882
1883 ENTER("qla1280_init_rings");
1884
1885 /* Clear outstanding commands array. */
1886 memset(ha->outstanding_cmds, 0,
1887 sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
1888
1889 /* Initialize request queue. */
1890 ha->request_ring_ptr = ha->request_ring;
1891 ha->req_ring_index = 0;
1892 ha->req_q_cnt = REQUEST_ENTRY_CNT;
1893 /* mb[0] = MBC_INIT_REQUEST_QUEUE; */
1894 mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
1895 mb[1] = REQUEST_ENTRY_CNT;
1896 mb[3] = ha->request_dma & 0xffff;
1897 mb[2] = (ha->request_dma >> 16) & 0xffff;
1898 mb[4] = 0;
1899 mb[7] = upper_32_bits(ha->request_dma) & 0xffff;
1900 mb[6] = upper_32_bits(ha->request_dma) >> 16;
1901 if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
1902 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1903 &mb[0]))) {
1904 /* Initialize response queue. */
1905 ha->response_ring_ptr = ha->response_ring;
1906 ha->rsp_ring_index = 0;
1907 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
1908 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
1909 mb[1] = RESPONSE_ENTRY_CNT;
1910 mb[3] = ha->response_dma & 0xffff;
1911 mb[2] = (ha->response_dma >> 16) & 0xffff;
1912 mb[5] = 0;
1913 mb[7] = upper_32_bits(ha->response_dma) & 0xffff;
1914 mb[6] = upper_32_bits(ha->response_dma) >> 16;
1915 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
1916 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1917 &mb[0]);
1918 }
1919
1920 if (status)
1921 dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
1922
1923 LEAVE("qla1280_init_rings");
1924 return status;
1925}
1926
1927static void
1928qla1280_print_settings(struct nvram *nv)
1929{
1930 dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
1931 nv->bus[0].config_1.initiator_id);
1932 dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
1933 nv->bus[1].config_1.initiator_id);
1934
1935 dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
1936 nv->bus[0].bus_reset_delay);
1937 dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
1938 nv->bus[1].bus_reset_delay);
1939
1940 dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
1941 dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
1942 dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
1943 dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
1944
1945 dprintk(1, "qla1280 : async data setup time[0]=%d\n",
1946 nv->bus[0].config_2.async_data_setup_time);
1947 dprintk(1, "qla1280 : async data setup time[1]=%d\n",
1948 nv->bus[1].config_2.async_data_setup_time);
1949
1950 dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
1951 nv->bus[0].config_2.req_ack_active_negation);
1952 dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
1953 nv->bus[1].config_2.req_ack_active_negation);
1954
1955 dprintk(1, "qla1280 : data line active negation[0]=%d\n",
1956 nv->bus[0].config_2.data_line_active_negation);
1957 dprintk(1, "qla1280 : data line active negation[1]=%d\n",
1958 nv->bus[1].config_2.data_line_active_negation);
1959
1960 dprintk(1, "qla1280 : disable loading risc code=%d\n",
1961 nv->cntr_flags_1.disable_loading_risc_code);
1962
1963 dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
1964 nv->cntr_flags_1.enable_64bit_addressing);
1965
1966 dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
1967 nv->bus[0].selection_timeout);
1968 dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
1969 nv->bus[1].selection_timeout);
1970
1971 dprintk(1, "qla1280 : max queue depth[0]=%d\n",
1972 nv->bus[0].max_queue_depth);
1973 dprintk(1, "qla1280 : max queue depth[1]=%d\n",
1974 nv->bus[1].max_queue_depth);
1975}
1976
1977static void
1978qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
1979{
1980 struct nvram *nv = &ha->nvram;
1981
1982 nv->bus[bus].target[target].parameter.renegotiate_on_error = 1;
1983 nv->bus[bus].target[target].parameter.auto_request_sense = 1;
1984 nv->bus[bus].target[target].parameter.tag_queuing = 1;
1985 nv->bus[bus].target[target].parameter.enable_sync = 1;
1986#if 1 /* Some SCSI Processors do not seem to like this */
1987 nv->bus[bus].target[target].parameter.enable_wide = 1;
1988#endif
1989 nv->bus[bus].target[target].execution_throttle =
1990 nv->bus[bus].max_queue_depth - 1;
1991 nv->bus[bus].target[target].parameter.parity_checking = 1;
1992 nv->bus[bus].target[target].parameter.disconnect_allowed = 1;
1993
1994 if (IS_ISP1x160(ha)) {
1995 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
1996 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
1997 nv->bus[bus].target[target].sync_period = 9;
1998 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
1999 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
2000 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
2001 } else {
2002 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
2003 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
2004 nv->bus[bus].target[target].sync_period = 10;
2005 }
2006}
2007
2008static void
2009qla1280_set_defaults(struct scsi_qla_host *ha)
2010{
2011 struct nvram *nv = &ha->nvram;
2012 int bus, target;
2013
2014 dprintk(1, "Using defaults for NVRAM: \n");
2015 memset(nv, 0, sizeof(struct nvram));
2016
2017 /* nv->cntr_flags_1.disable_loading_risc_code = 1; */
2018 nv->firmware_feature.f.enable_fast_posting = 1;
2019 nv->firmware_feature.f.disable_synchronous_backoff = 1;
2020 nv->termination.scsi_bus_0_control = 3;
2021 nv->termination.scsi_bus_1_control = 3;
2022 nv->termination.auto_term_support = 1;
2023
2024 /*
2025 * Set default FIFO magic - What appropriate values would be here
2026 * is unknown. This is what I have found testing with 12160s.
2027 *
2028 * Now, I would love the magic decoder ring for this one, the
2029 * header file provided by QLogic seems to be bogus or incomplete
2030 * at best.
2031 */
2032 nv->isp_config.burst_enable = 1;
2033 if (IS_ISP1040(ha))
2034 nv->isp_config.fifo_threshold |= 3;
2035 else
2036 nv->isp_config.fifo_threshold |= 4;
2037
2038 if (IS_ISP1x160(ha))
2039 nv->isp_parameter = 0x01; /* fast memory enable */
2040
2041 for (bus = 0; bus < MAX_BUSES; bus++) {
2042 nv->bus[bus].config_1.initiator_id = 7;
2043 nv->bus[bus].config_2.req_ack_active_negation = 1;
2044 nv->bus[bus].config_2.data_line_active_negation = 1;
2045 nv->bus[bus].selection_timeout = 250;
2046 nv->bus[bus].max_queue_depth = 32;
2047
2048 if (IS_ISP1040(ha)) {
2049 nv->bus[bus].bus_reset_delay = 3;
2050 nv->bus[bus].config_2.async_data_setup_time = 6;
2051 nv->bus[bus].retry_delay = 1;
2052 } else {
2053 nv->bus[bus].bus_reset_delay = 5;
2054 nv->bus[bus].config_2.async_data_setup_time = 8;
2055 }
2056
2057 for (target = 0; target < MAX_TARGETS; target++)
2058 qla1280_set_target_defaults(ha, bus, target);
2059 }
2060}
2061
2062static int
2063qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
2064{
2065 struct nvram *nv = &ha->nvram;
2066 uint16_t mb[MAILBOX_REGISTER_COUNT];
2067 int status, lun;
2068 uint16_t flag;
2069
2070 /* Set Target Parameters. */
2071 mb[0] = MBC_SET_TARGET_PARAMETERS;
2072 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2073
2074 /*
2075 * Do not enable sync and ppr for the initial INQUIRY run. We
2076 * enable this later if we determine the target actually
2077 * supports it.
2078 */
2079 mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE
2080 | TP_WIDE | TP_PARITY | TP_DISCONNECT);
2081
2082 if (IS_ISP1x160(ha))
2083 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
2084 else
2085 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
2086 mb[3] |= nv->bus[bus].target[target].sync_period;
2087 status = qla1280_mailbox_command(ha, 0x0f, mb);
2088
2089 /* Save Tag queuing enable flag. */
2090 flag = (BIT_0 << target);
2091 if (nv->bus[bus].target[target].parameter.tag_queuing)
2092 ha->bus_settings[bus].qtag_enables |= flag;
2093
2094 /* Save Device enable flag. */
2095 if (IS_ISP1x160(ha)) {
2096 if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
2097 ha->bus_settings[bus].device_enables |= flag;
2098 ha->bus_settings[bus].lun_disables |= 0;
2099 } else {
2100 if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
2101 ha->bus_settings[bus].device_enables |= flag;
2102 /* Save LUN disable flag. */
2103 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
2104 ha->bus_settings[bus].lun_disables |= flag;
2105 }
2106
2107 /* Set Device Queue Parameters. */
2108 for (lun = 0; lun < MAX_LUNS; lun++) {
2109 mb[0] = MBC_SET_DEVICE_QUEUE;
2110 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2111 mb[1] |= lun;
2112 mb[2] = nv->bus[bus].max_queue_depth;
2113 mb[3] = nv->bus[bus].target[target].execution_throttle;
2114 status |= qla1280_mailbox_command(ha, 0x0f, mb);
2115 }
2116
2117 return status;
2118}
2119
2120static int
2121qla1280_config_bus(struct scsi_qla_host *ha, int bus)
2122{
2123 struct nvram *nv = &ha->nvram;
2124 uint16_t mb[MAILBOX_REGISTER_COUNT];
2125 int target, status;
2126
2127 /* SCSI Reset Disable. */
2128 ha->bus_settings[bus].disable_scsi_reset =
2129 nv->bus[bus].config_1.scsi_reset_disable;
2130
2131 /* Initiator ID. */
2132 ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
2133 mb[0] = MBC_SET_INITIATOR_ID;
2134 mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
2135 ha->bus_settings[bus].id;
2136 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2137
2138 /* Reset Delay. */
2139 ha->bus_settings[bus].bus_reset_delay =
2140 nv->bus[bus].bus_reset_delay;
2141
2142 /* Command queue depth per device. */
2143 ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
2144
2145 /* Set target parameters. */
2146 for (target = 0; target < MAX_TARGETS; target++)
2147 status |= qla1280_config_target(ha, bus, target);
2148
2149 return status;
2150}
2151
2152static int
2153qla1280_nvram_config(struct scsi_qla_host *ha)
2154{
2155 struct device_reg __iomem *reg = ha->iobase;
2156 struct nvram *nv = &ha->nvram;
2157 int bus, target, status = 0;
2158 uint16_t mb[MAILBOX_REGISTER_COUNT];
2159
2160 ENTER("qla1280_nvram_config");
2161
2162 if (ha->nvram_valid) {
2163 /* Always force AUTO sense for LINUX SCSI */
2164 for (bus = 0; bus < MAX_BUSES; bus++)
2165 for (target = 0; target < MAX_TARGETS; target++) {
2166 nv->bus[bus].target[target].parameter.
2167 auto_request_sense = 1;
2168 }
2169 } else {
2170 qla1280_set_defaults(ha);
2171 }
2172
2173 qla1280_print_settings(nv);
2174
2175 /* Disable RISC load of firmware. */
2176 ha->flags.disable_risc_code_load =
2177 nv->cntr_flags_1.disable_loading_risc_code;
2178
2179 if (IS_ISP1040(ha)) {
2180 uint16_t hwrev, cfg1, cdma_conf, ddma_conf;
2181
2182 hwrev = RD_REG_WORD(®->cfg_0) & ISP_CFG0_HWMSK;
2183
2184 cfg1 = RD_REG_WORD(®->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6);
2185 cdma_conf = RD_REG_WORD(®->cdma_cfg);
2186 ddma_conf = RD_REG_WORD(®->ddma_cfg);
2187
2188 /* Busted fifo, says mjacob. */
2189 if (hwrev != ISP_CFG0_1040A)
2190 cfg1 |= nv->isp_config.fifo_threshold << 4;
2191
2192 cfg1 |= nv->isp_config.burst_enable << 2;
2193 WRT_REG_WORD(®->cfg_1, cfg1);
2194
2195 WRT_REG_WORD(®->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
2196 WRT_REG_WORD(®->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
2197 } else {
2198 uint16_t cfg1, term;
2199
2200 /* Set ISP hardware DMA burst */
2201 cfg1 = nv->isp_config.fifo_threshold << 4;
2202 cfg1 |= nv->isp_config.burst_enable << 2;
2203 /* Enable DMA arbitration on dual channel controllers */
2204 if (ha->ports > 1)
2205 cfg1 |= BIT_13;
2206 WRT_REG_WORD(®->cfg_1, cfg1);
2207
2208 /* Set SCSI termination. */
2209 WRT_REG_WORD(®->gpio_enable,
2210 BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0);
2211 term = nv->termination.scsi_bus_1_control;
2212 term |= nv->termination.scsi_bus_0_control << 2;
2213 term |= nv->termination.auto_term_support << 7;
2214 RD_REG_WORD(®->id_l); /* Flush PCI write */
2215 WRT_REG_WORD(®->gpio_data, term);
2216 }
2217 RD_REG_WORD(®->id_l); /* Flush PCI write */
2218
2219 /* ISP parameter word. */
2220 mb[0] = MBC_SET_SYSTEM_PARAMETER;
2221 mb[1] = nv->isp_parameter;
2222 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2223
2224 if (IS_ISP1x40(ha)) {
2225 /* clock rate - for qla1240 and older, only */
2226 mb[0] = MBC_SET_CLOCK_RATE;
2227 mb[1] = 40;
2228 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2229 }
2230
2231 /* Firmware feature word. */
2232 mb[0] = MBC_SET_FIRMWARE_FEATURES;
2233 mb[1] = nv->firmware_feature.f.enable_fast_posting;
2234 mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1;
2235 mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5;
2236 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2237
2238 /* Retry count and delay. */
2239 mb[0] = MBC_SET_RETRY_COUNT;
2240 mb[1] = nv->bus[0].retry_count;
2241 mb[2] = nv->bus[0].retry_delay;
2242 mb[6] = nv->bus[1].retry_count;
2243 mb[7] = nv->bus[1].retry_delay;
2244 status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
2245 BIT_1 | BIT_0, &mb[0]);
2246
2247 /* ASYNC data setup time. */
2248 mb[0] = MBC_SET_ASYNC_DATA_SETUP;
2249 mb[1] = nv->bus[0].config_2.async_data_setup_time;
2250 mb[2] = nv->bus[1].config_2.async_data_setup_time;
2251 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2252
2253 /* Active negation states. */
2254 mb[0] = MBC_SET_ACTIVE_NEGATION;
2255 mb[1] = 0;
2256 if (nv->bus[0].config_2.req_ack_active_negation)
2257 mb[1] |= BIT_5;
2258 if (nv->bus[0].config_2.data_line_active_negation)
2259 mb[1] |= BIT_4;
2260 mb[2] = 0;
2261 if (nv->bus[1].config_2.req_ack_active_negation)
2262 mb[2] |= BIT_5;
2263 if (nv->bus[1].config_2.data_line_active_negation)
2264 mb[2] |= BIT_4;
2265 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2266
2267 mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
2268 mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */
2269 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2270
2271 /* thingy */
2272 mb[0] = MBC_SET_PCI_CONTROL;
2273 mb[1] = BIT_1; /* Data DMA Channel Burst Enable */
2274 mb[2] = BIT_1; /* Command DMA Channel Burst Enable */
2275 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2276
2277 mb[0] = MBC_SET_TAG_AGE_LIMIT;
2278 mb[1] = 8;
2279 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2280
2281 /* Selection timeout. */
2282 mb[0] = MBC_SET_SELECTION_TIMEOUT;
2283 mb[1] = nv->bus[0].selection_timeout;
2284 mb[2] = nv->bus[1].selection_timeout;
2285 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2286
2287 for (bus = 0; bus < ha->ports; bus++)
2288 status |= qla1280_config_bus(ha, bus);
2289
2290 if (status)
2291 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
2292
2293 LEAVE("qla1280_nvram_config");
2294 return status;
2295}
2296
2297/*
2298 * Get NVRAM data word
2299 * Calculates word position in NVRAM and calls request routine to
2300 * get the word from NVRAM.
2301 *
2302 * Input:
2303 * ha = adapter block pointer.
2304 * address = NVRAM word address.
2305 *
2306 * Returns:
2307 * data word.
2308 */
2309static uint16_t
2310qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
2311{
2312 uint32_t nv_cmd;
2313 uint16_t data;
2314
2315 nv_cmd = address << 16;
2316 nv_cmd |= NV_READ_OP;
2317
2318 data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
2319
2320 dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
2321 "0x%x", data);
2322
2323 return data;
2324}
2325
2326/*
2327 * NVRAM request
2328 * Sends read command to NVRAM and gets data from NVRAM.
2329 *
2330 * Input:
2331 * ha = adapter block pointer.
2332 * nv_cmd = Bit 26 = start bit
2333 * Bit 25, 24 = opcode
2334 * Bit 23-16 = address
2335 * Bit 15-0 = write data
2336 *
2337 * Returns:
2338 * data word.
2339 */
2340static uint16_t
2341qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
2342{
2343 struct device_reg __iomem *reg = ha->iobase;
2344 int cnt;
2345 uint16_t data = 0;
2346 uint16_t reg_data;
2347
2348 /* Send command to NVRAM. */
2349
2350 nv_cmd <<= 5;
2351 for (cnt = 0; cnt < 11; cnt++) {
2352 if (nv_cmd & BIT_31)
2353 qla1280_nv_write(ha, NV_DATA_OUT);
2354 else
2355 qla1280_nv_write(ha, 0);
2356 nv_cmd <<= 1;
2357 }
2358
2359 /* Read data from NVRAM. */
2360
2361 for (cnt = 0; cnt < 16; cnt++) {
2362 WRT_REG_WORD(®->nvram, (NV_SELECT | NV_CLOCK));
2363 RD_REG_WORD(®->id_l); /* Flush PCI write */
2364 NVRAM_DELAY();
2365 data <<= 1;
2366 reg_data = RD_REG_WORD(®->nvram);
2367 if (reg_data & NV_DATA_IN)
2368 data |= BIT_0;
2369 WRT_REG_WORD(®->nvram, NV_SELECT);
2370 RD_REG_WORD(®->id_l); /* Flush PCI write */
2371 NVRAM_DELAY();
2372 }
2373
2374 /* Deselect chip. */
2375
2376 WRT_REG_WORD(®->nvram, NV_DESELECT);
2377 RD_REG_WORD(®->id_l); /* Flush PCI write */
2378 NVRAM_DELAY();
2379
2380 return data;
2381}
2382
2383static void
2384qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
2385{
2386 struct device_reg __iomem *reg = ha->iobase;
2387
2388 WRT_REG_WORD(®->nvram, data | NV_SELECT);
2389 RD_REG_WORD(®->id_l); /* Flush PCI write */
2390 NVRAM_DELAY();
2391 WRT_REG_WORD(®->nvram, data | NV_SELECT | NV_CLOCK);
2392 RD_REG_WORD(®->id_l); /* Flush PCI write */
2393 NVRAM_DELAY();
2394 WRT_REG_WORD(®->nvram, data | NV_SELECT);
2395 RD_REG_WORD(®->id_l); /* Flush PCI write */
2396 NVRAM_DELAY();
2397}
2398
2399/*
2400 * Mailbox Command
2401 * Issue mailbox command and waits for completion.
2402 *
2403 * Input:
2404 * ha = adapter block pointer.
2405 * mr = mailbox registers to load.
2406 * mb = data pointer for mailbox registers.
2407 *
2408 * Output:
2409 * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
2410 *
2411 * Returns:
2412 * 0 = success
2413 */
2414static int
2415qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
2416{
2417 struct device_reg __iomem *reg = ha->iobase;
2418 int status = 0;
2419 int cnt;
2420 uint16_t *optr, *iptr;
2421 uint16_t __iomem *mptr;
2422 uint16_t data;
2423 DECLARE_COMPLETION_ONSTACK(wait);
2424
2425 ENTER("qla1280_mailbox_command");
2426
2427 if (ha->mailbox_wait) {
2428 printk(KERN_ERR "Warning mailbox wait already in use!\n");
2429 }
2430 ha->mailbox_wait = &wait;
2431
2432 /*
2433 * We really should start out by verifying that the mailbox is
2434 * available before starting sending the command data
2435 */
2436 /* Load mailbox registers. */
2437 mptr = (uint16_t __iomem *) ®->mailbox0;
2438 iptr = mb;
2439 for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
2440 if (mr & BIT_0) {
2441 WRT_REG_WORD(mptr, (*iptr));
2442 }
2443
2444 mr >>= 1;
2445 mptr++;
2446 iptr++;
2447 }
2448
2449 /* Issue set host interrupt command. */
2450
2451 /* set up a timer just in case we're really jammed */
2452 timer_setup(&ha->mailbox_timer, qla1280_mailbox_timeout, 0);
2453 mod_timer(&ha->mailbox_timer, jiffies + 20 * HZ);
2454
2455 spin_unlock_irq(ha->host->host_lock);
2456 WRT_REG_WORD(®->host_cmd, HC_SET_HOST_INT);
2457 data = qla1280_debounce_register(®->istatus);
2458
2459 wait_for_completion(&wait);
2460 del_timer_sync(&ha->mailbox_timer);
2461
2462 spin_lock_irq(ha->host->host_lock);
2463
2464 ha->mailbox_wait = NULL;
2465
2466 /* Check for mailbox command timeout. */
2467 if (ha->mailbox_out[0] != MBS_CMD_CMP) {
2468 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
2469 "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
2470 "0x%04x\n",
2471 mb[0], ha->mailbox_out[0], RD_REG_WORD(®->istatus));
2472 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
2473 RD_REG_WORD(®->mailbox0), RD_REG_WORD(®->mailbox1),
2474 RD_REG_WORD(®->mailbox2), RD_REG_WORD(®->mailbox3));
2475 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
2476 RD_REG_WORD(®->mailbox4), RD_REG_WORD(®->mailbox5),
2477 RD_REG_WORD(®->mailbox6), RD_REG_WORD(®->mailbox7));
2478 status = 1;
2479 }
2480
2481 /* Load return mailbox registers. */
2482 optr = mb;
2483 iptr = (uint16_t *) &ha->mailbox_out[0];
2484 mr = MAILBOX_REGISTER_COUNT;
2485 memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
2486
2487 if (ha->flags.reset_marker)
2488 qla1280_rst_aen(ha);
2489
2490 if (status)
2491 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
2492 "0x%x ****\n", mb[0]);
2493
2494 LEAVE("qla1280_mailbox_command");
2495 return status;
2496}
2497
2498/*
2499 * qla1280_poll
2500 * Polls ISP for interrupts.
2501 *
2502 * Input:
2503 * ha = adapter block pointer.
2504 */
2505static void
2506qla1280_poll(struct scsi_qla_host *ha)
2507{
2508 struct device_reg __iomem *reg = ha->iobase;
2509 uint16_t data;
2510 LIST_HEAD(done_q);
2511
2512 /* ENTER("qla1280_poll"); */
2513
2514 /* Check for pending interrupts. */
2515 data = RD_REG_WORD(®->istatus);
2516 if (data & RISC_INT)
2517 qla1280_isr(ha, &done_q);
2518
2519 if (!ha->mailbox_wait) {
2520 if (ha->flags.reset_marker)
2521 qla1280_rst_aen(ha);
2522 }
2523
2524 if (!list_empty(&done_q))
2525 qla1280_done(ha);
2526
2527 /* LEAVE("qla1280_poll"); */
2528}
2529
2530/*
2531 * qla1280_bus_reset
2532 * Issue SCSI bus reset.
2533 *
2534 * Input:
2535 * ha = adapter block pointer.
2536 * bus = SCSI bus number.
2537 *
2538 * Returns:
2539 * 0 = success
2540 */
2541static int
2542qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
2543{
2544 uint16_t mb[MAILBOX_REGISTER_COUNT];
2545 uint16_t reset_delay;
2546 int status;
2547
2548 dprintk(3, "qla1280_bus_reset: entered\n");
2549
2550 if (qla1280_verbose)
2551 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
2552 ha->host_no, bus);
2553
2554 reset_delay = ha->bus_settings[bus].bus_reset_delay;
2555 mb[0] = MBC_BUS_RESET;
2556 mb[1] = reset_delay;
2557 mb[2] = (uint16_t) bus;
2558 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2559
2560 if (status) {
2561 if (ha->bus_settings[bus].failed_reset_count > 2)
2562 ha->bus_settings[bus].scsi_bus_dead = 1;
2563 ha->bus_settings[bus].failed_reset_count++;
2564 } else {
2565 spin_unlock_irq(ha->host->host_lock);
2566 ssleep(reset_delay);
2567 spin_lock_irq(ha->host->host_lock);
2568
2569 ha->bus_settings[bus].scsi_bus_dead = 0;
2570 ha->bus_settings[bus].failed_reset_count = 0;
2571 ha->bus_settings[bus].reset_marker = 0;
2572 /* Issue marker command. */
2573 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
2574 }
2575
2576 /*
2577 * We should probably call qla1280_set_target_parameters()
2578 * here as well for all devices on the bus.
2579 */
2580
2581 if (status)
2582 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
2583 else
2584 dprintk(3, "qla1280_bus_reset: exiting normally\n");
2585
2586 return status;
2587}
2588
2589/*
2590 * qla1280_device_reset
2591 * Issue bus device reset message to the target.
2592 *
2593 * Input:
2594 * ha = adapter block pointer.
2595 * bus = SCSI BUS number.
2596 * target = SCSI ID.
2597 *
2598 * Returns:
2599 * 0 = success
2600 */
2601static int
2602qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
2603{
2604 uint16_t mb[MAILBOX_REGISTER_COUNT];
2605 int status;
2606
2607 ENTER("qla1280_device_reset");
2608
2609 mb[0] = MBC_ABORT_TARGET;
2610 mb[1] = (bus ? (target | BIT_7) : target) << 8;
2611 mb[2] = 1;
2612 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2613
2614 /* Issue marker command. */
2615 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
2616
2617 if (status)
2618 dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
2619
2620 LEAVE("qla1280_device_reset");
2621 return status;
2622}
2623
2624/*
2625 * qla1280_abort_command
2626 * Abort command aborts a specified IOCB.
2627 *
2628 * Input:
2629 * ha = adapter block pointer.
2630 * sp = SB structure pointer.
2631 *
2632 * Returns:
2633 * 0 = success
2634 */
2635static int
2636qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
2637{
2638 uint16_t mb[MAILBOX_REGISTER_COUNT];
2639 unsigned int bus, target, lun;
2640 int status;
2641
2642 ENTER("qla1280_abort_command");
2643
2644 bus = SCSI_BUS_32(sp->cmd);
2645 target = SCSI_TCN_32(sp->cmd);
2646 lun = SCSI_LUN_32(sp->cmd);
2647
2648 sp->flags |= SRB_ABORT_PENDING;
2649
2650 mb[0] = MBC_ABORT_COMMAND;
2651 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2652 mb[2] = handle >> 16;
2653 mb[3] = handle & 0xffff;
2654 status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
2655
2656 if (status) {
2657 dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
2658 sp->flags &= ~SRB_ABORT_PENDING;
2659 }
2660
2661
2662 LEAVE("qla1280_abort_command");
2663 return status;
2664}
2665
2666/*
2667 * qla1280_reset_adapter
2668 * Reset adapter.
2669 *
2670 * Input:
2671 * ha = adapter block pointer.
2672 */
2673static void
2674qla1280_reset_adapter(struct scsi_qla_host *ha)
2675{
2676 struct device_reg __iomem *reg = ha->iobase;
2677
2678 ENTER("qla1280_reset_adapter");
2679
2680 /* Disable ISP chip */
2681 ha->flags.online = 0;
2682 WRT_REG_WORD(®->ictrl, ISP_RESET);
2683 WRT_REG_WORD(®->host_cmd,
2684 HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
2685 RD_REG_WORD(®->id_l); /* Flush PCI write */
2686
2687 LEAVE("qla1280_reset_adapter");
2688}
2689
2690/*
2691 * Issue marker command.
2692 * Function issues marker IOCB.
2693 *
2694 * Input:
2695 * ha = adapter block pointer.
2696 * bus = SCSI BUS number
2697 * id = SCSI ID
2698 * lun = SCSI LUN
2699 * type = marker modifier
2700 */
2701static void
2702qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
2703{
2704 struct mrk_entry *pkt;
2705
2706 ENTER("qla1280_marker");
2707
2708 /* Get request packet. */
2709 if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
2710 pkt->entry_type = MARKER_TYPE;
2711 pkt->lun = (uint8_t) lun;
2712 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
2713 pkt->modifier = type;
2714 pkt->entry_status = 0;
2715
2716 /* Issue command to ISP */
2717 qla1280_isp_cmd(ha);
2718 }
2719
2720 LEAVE("qla1280_marker");
2721}
2722
2723
2724/*
2725 * qla1280_64bit_start_scsi
2726 * The start SCSI is responsible for building request packets on
2727 * request ring and modifying ISP input pointer.
2728 *
2729 * Input:
2730 * ha = adapter block pointer.
2731 * sp = SB structure pointer.
2732 *
2733 * Returns:
2734 * 0 = success, was able to issue command.
2735 */
2736#ifdef QLA_64BIT_PTR
2737static int
2738qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2739{
2740 struct device_reg __iomem *reg = ha->iobase;
2741 struct scsi_cmnd *cmd = sp->cmd;
2742 cmd_a64_entry_t *pkt;
2743 __le32 *dword_ptr;
2744 dma_addr_t dma_handle;
2745 int status = 0;
2746 int cnt;
2747 int req_cnt;
2748 int seg_cnt;
2749 u8 dir;
2750
2751 ENTER("qla1280_64bit_start_scsi:");
2752
2753 /* Calculate number of entries and segments required. */
2754 req_cnt = 1;
2755 seg_cnt = scsi_dma_map(cmd);
2756 if (seg_cnt > 0) {
2757 if (seg_cnt > 2) {
2758 req_cnt += (seg_cnt - 2) / 5;
2759 if ((seg_cnt - 2) % 5)
2760 req_cnt++;
2761 }
2762 } else if (seg_cnt < 0) {
2763 status = 1;
2764 goto out;
2765 }
2766
2767 if ((req_cnt + 2) >= ha->req_q_cnt) {
2768 /* Calculate number of free request entries. */
2769 cnt = RD_REG_WORD(®->mailbox4);
2770 if (ha->req_ring_index < cnt)
2771 ha->req_q_cnt = cnt - ha->req_ring_index;
2772 else
2773 ha->req_q_cnt =
2774 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
2775 }
2776
2777 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
2778 ha->req_q_cnt, seg_cnt);
2779
2780 /* If room for request in request ring. */
2781 if ((req_cnt + 2) >= ha->req_q_cnt) {
2782 status = SCSI_MLQUEUE_HOST_BUSY;
2783 dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt="
2784 "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
2785 req_cnt);
2786 goto out;
2787 }
2788
2789 /* Check for room in outstanding command list. */
2790 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
2791 ha->outstanding_cmds[cnt] != NULL; cnt++);
2792
2793 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
2794 status = SCSI_MLQUEUE_HOST_BUSY;
2795 dprintk(2, "qla1280_start_scsi: NO ROOM IN "
2796 "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
2797 goto out;
2798 }
2799
2800 ha->outstanding_cmds[cnt] = sp;
2801 ha->req_q_cnt -= req_cnt;
2802 CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
2803
2804 dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
2805 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
2806 dprintk(2, " bus %i, target %i, lun %i\n",
2807 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2808 qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
2809
2810 /*
2811 * Build command packet.
2812 */
2813 pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
2814
2815 pkt->entry_type = COMMAND_A64_TYPE;
2816 pkt->entry_count = (uint8_t) req_cnt;
2817 pkt->sys_define = (uint8_t) ha->req_ring_index;
2818 pkt->entry_status = 0;
2819 pkt->handle = cpu_to_le32(cnt);
2820
2821 /* Zero out remaining portion of packet. */
2822 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
2823
2824 /* Set ISP command timeout. */
2825 pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ);
2826
2827 /* Set device target ID and LUN */
2828 pkt->lun = SCSI_LUN_32(cmd);
2829 pkt->target = SCSI_BUS_32(cmd) ?
2830 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
2831
2832 /* Enable simple tag queuing if device supports it. */
2833 if (cmd->device->simple_tags)
2834 pkt->control_flags |= cpu_to_le16(BIT_3);
2835
2836 /* Load SCSI command packet. */
2837 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
2838 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
2839 /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
2840
2841 /* Set transfer direction. */
2842 dir = qla1280_data_direction(cmd);
2843 pkt->control_flags |= cpu_to_le16(dir);
2844
2845 /* Set total data segment count. */
2846 pkt->dseg_count = cpu_to_le16(seg_cnt);
2847
2848 /*
2849 * Load data segments.
2850 */
2851 if (seg_cnt) { /* If data transfer. */
2852 struct scatterlist *sg, *s;
2853 int remseg = seg_cnt;
2854
2855 sg = scsi_sglist(cmd);
2856
2857 /* Setup packet address segment pointer. */
2858 dword_ptr = (u32 *)&pkt->dseg_0_address;
2859
2860 /* Load command entry data segments. */
2861 for_each_sg(sg, s, seg_cnt, cnt) {
2862 if (cnt == 2)
2863 break;
2864
2865 dma_handle = sg_dma_address(s);
2866 *dword_ptr++ =
2867 cpu_to_le32(lower_32_bits(dma_handle));
2868 *dword_ptr++ =
2869 cpu_to_le32(upper_32_bits(dma_handle));
2870 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
2871 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
2872 cpu_to_le32(upper_32_bits(dma_handle)),
2873 cpu_to_le32(lower_32_bits(dma_handle)),
2874 cpu_to_le32(sg_dma_len(sg_next(s))));
2875 remseg--;
2876 }
2877 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
2878 "command packet data - b %i, t %i, l %i \n",
2879 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
2880 SCSI_LUN_32(cmd));
2881 qla1280_dump_buffer(5, (char *)pkt,
2882 REQUEST_ENTRY_SIZE);
2883
2884 /*
2885 * Build continuation packets.
2886 */
2887 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
2888 "remains\n", seg_cnt);
2889
2890 while (remseg > 0) {
2891 /* Update sg start */
2892 sg = s;
2893 /* Adjust ring index. */
2894 ha->req_ring_index++;
2895 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2896 ha->req_ring_index = 0;
2897 ha->request_ring_ptr =
2898 ha->request_ring;
2899 } else
2900 ha->request_ring_ptr++;
2901
2902 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
2903
2904 /* Zero out packet. */
2905 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2906
2907 /* Load packet defaults. */
2908 ((struct cont_a64_entry *) pkt)->entry_type =
2909 CONTINUE_A64_TYPE;
2910 ((struct cont_a64_entry *) pkt)->entry_count = 1;
2911 ((struct cont_a64_entry *) pkt)->sys_define =
2912 (uint8_t)ha->req_ring_index;
2913 /* Setup packet address segment pointer. */
2914 dword_ptr =
2915 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
2916
2917 /* Load continuation entry data segments. */
2918 for_each_sg(sg, s, remseg, cnt) {
2919 if (cnt == 5)
2920 break;
2921 dma_handle = sg_dma_address(s);
2922 *dword_ptr++ =
2923 cpu_to_le32(lower_32_bits(dma_handle));
2924 *dword_ptr++ =
2925 cpu_to_le32(upper_32_bits(dma_handle));
2926 *dword_ptr++ =
2927 cpu_to_le32(sg_dma_len(s));
2928 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
2929 cpu_to_le32(upper_32_bits(dma_handle)),
2930 cpu_to_le32(lower_32_bits(dma_handle)),
2931 cpu_to_le32(sg_dma_len(s)));
2932 }
2933 remseg -= cnt;
2934 dprintk(5, "qla1280_64bit_start_scsi: "
2935 "continuation packet data - b %i, t "
2936 "%i, l %i \n", SCSI_BUS_32(cmd),
2937 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2938 qla1280_dump_buffer(5, (char *)pkt,
2939 REQUEST_ENTRY_SIZE);
2940 }
2941 } else { /* No data transfer */
2942 dprintk(5, "qla1280_64bit_start_scsi: No data, command "
2943 "packet data - b %i, t %i, l %i \n",
2944 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2945 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
2946 }
2947 /* Adjust ring index. */
2948 ha->req_ring_index++;
2949 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2950 ha->req_ring_index = 0;
2951 ha->request_ring_ptr = ha->request_ring;
2952 } else
2953 ha->request_ring_ptr++;
2954
2955 /* Set chip new ring index. */
2956 dprintk(2,
2957 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
2958 sp->flags |= SRB_SENT;
2959 ha->actthreads++;
2960 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
2961
2962 out:
2963 if (status)
2964 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
2965 else
2966 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
2967
2968 return status;
2969}
2970#else /* !QLA_64BIT_PTR */
2971
2972/*
2973 * qla1280_32bit_start_scsi
2974 * The start SCSI is responsible for building request packets on
2975 * request ring and modifying ISP input pointer.
2976 *
2977 * The Qlogic firmware interface allows every queue slot to have a SCSI
2978 * command and up to 4 scatter/gather (SG) entries. If we need more
2979 * than 4 SG entries, then continuation entries are used that can
2980 * hold another 7 entries each. The start routine determines if there
2981 * is eought empty slots then build the combination of requests to
2982 * fulfill the OS request.
2983 *
2984 * Input:
2985 * ha = adapter block pointer.
2986 * sp = SCSI Request Block structure pointer.
2987 *
2988 * Returns:
2989 * 0 = success, was able to issue command.
2990 */
2991static int
2992qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2993{
2994 struct device_reg __iomem *reg = ha->iobase;
2995 struct scsi_cmnd *cmd = sp->cmd;
2996 struct cmd_entry *pkt;
2997 __le32 *dword_ptr;
2998 int status = 0;
2999 int cnt;
3000 int req_cnt;
3001 int seg_cnt;
3002 u8 dir;
3003
3004 ENTER("qla1280_32bit_start_scsi");
3005
3006 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
3007 cmd->cmnd[0]);
3008
3009 /* Calculate number of entries and segments required. */
3010 req_cnt = 1;
3011 seg_cnt = scsi_dma_map(cmd);
3012 if (seg_cnt) {
3013 /*
3014 * if greater than four sg entries then we need to allocate
3015 * continuation entries
3016 */
3017 if (seg_cnt > 4) {
3018 req_cnt += (seg_cnt - 4) / 7;
3019 if ((seg_cnt - 4) % 7)
3020 req_cnt++;
3021 }
3022 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
3023 cmd, seg_cnt, req_cnt);
3024 } else if (seg_cnt < 0) {
3025 status = 1;
3026 goto out;
3027 }
3028
3029 if ((req_cnt + 2) >= ha->req_q_cnt) {
3030 /* Calculate number of free request entries. */
3031 cnt = RD_REG_WORD(®->mailbox4);
3032 if (ha->req_ring_index < cnt)
3033 ha->req_q_cnt = cnt - ha->req_ring_index;
3034 else
3035 ha->req_q_cnt =
3036 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3037 }
3038
3039 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
3040 ha->req_q_cnt, seg_cnt);
3041 /* If room for request in request ring. */
3042 if ((req_cnt + 2) >= ha->req_q_cnt) {
3043 status = SCSI_MLQUEUE_HOST_BUSY;
3044 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
3045 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
3046 ha->req_q_cnt, req_cnt);
3047 goto out;
3048 }
3049
3050 /* Check for empty slot in outstanding command list. */
3051 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3052 (ha->outstanding_cmds[cnt] != 0); cnt++) ;
3053
3054 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
3055 status = SCSI_MLQUEUE_HOST_BUSY;
3056 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
3057 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
3058 goto out;
3059 }
3060
3061 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
3062 ha->outstanding_cmds[cnt] = sp;
3063 ha->req_q_cnt -= req_cnt;
3064
3065 /*
3066 * Build command packet.
3067 */
3068 pkt = (struct cmd_entry *) ha->request_ring_ptr;
3069
3070 pkt->entry_type = COMMAND_TYPE;
3071 pkt->entry_count = (uint8_t) req_cnt;
3072 pkt->sys_define = (uint8_t) ha->req_ring_index;
3073 pkt->entry_status = 0;
3074 pkt->handle = cpu_to_le32(cnt);
3075
3076 /* Zero out remaining portion of packet. */
3077 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3078
3079 /* Set ISP command timeout. */
3080 pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ);
3081
3082 /* Set device target ID and LUN */
3083 pkt->lun = SCSI_LUN_32(cmd);
3084 pkt->target = SCSI_BUS_32(cmd) ?
3085 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3086
3087 /* Enable simple tag queuing if device supports it. */
3088 if (cmd->device->simple_tags)
3089 pkt->control_flags |= cpu_to_le16(BIT_3);
3090
3091 /* Load SCSI command packet. */
3092 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
3093 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
3094
3095 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3096 /* Set transfer direction. */
3097 dir = qla1280_data_direction(cmd);
3098 pkt->control_flags |= cpu_to_le16(dir);
3099
3100 /* Set total data segment count. */
3101 pkt->dseg_count = cpu_to_le16(seg_cnt);
3102
3103 /*
3104 * Load data segments.
3105 */
3106 if (seg_cnt) {
3107 struct scatterlist *sg, *s;
3108 int remseg = seg_cnt;
3109
3110 sg = scsi_sglist(cmd);
3111
3112 /* Setup packet address segment pointer. */
3113 dword_ptr = &pkt->dseg_0_address;
3114
3115 dprintk(3, "Building S/G data segments..\n");
3116 qla1280_dump_buffer(1, (char *)sg, 4 * 16);
3117
3118 /* Load command entry data segments. */
3119 for_each_sg(sg, s, seg_cnt, cnt) {
3120 if (cnt == 4)
3121 break;
3122 *dword_ptr++ =
3123 cpu_to_le32(lower_32_bits(sg_dma_address(s)));
3124 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
3125 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
3126 (lower_32_bits(sg_dma_address(s))),
3127 (sg_dma_len(s)));
3128 remseg--;
3129 }
3130 /*
3131 * Build continuation packets.
3132 */
3133 dprintk(3, "S/G Building Continuation"
3134 "...seg_cnt=0x%x remains\n", seg_cnt);
3135 while (remseg > 0) {
3136 /* Continue from end point */
3137 sg = s;
3138 /* Adjust ring index. */
3139 ha->req_ring_index++;
3140 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3141 ha->req_ring_index = 0;
3142 ha->request_ring_ptr =
3143 ha->request_ring;
3144 } else
3145 ha->request_ring_ptr++;
3146
3147 pkt = (struct cmd_entry *)ha->request_ring_ptr;
3148
3149 /* Zero out packet. */
3150 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3151
3152 /* Load packet defaults. */
3153 ((struct cont_entry *) pkt)->
3154 entry_type = CONTINUE_TYPE;
3155 ((struct cont_entry *) pkt)->entry_count = 1;
3156
3157 ((struct cont_entry *) pkt)->sys_define =
3158 (uint8_t) ha->req_ring_index;
3159
3160 /* Setup packet address segment pointer. */
3161 dword_ptr =
3162 &((struct cont_entry *) pkt)->dseg_0_address;
3163
3164 /* Load continuation entry data segments. */
3165 for_each_sg(sg, s, remseg, cnt) {
3166 if (cnt == 7)
3167 break;
3168 *dword_ptr++ =
3169 cpu_to_le32(lower_32_bits(sg_dma_address(s)));
3170 *dword_ptr++ =
3171 cpu_to_le32(sg_dma_len(s));
3172 dprintk(1,
3173 "S/G Segment Cont. phys_addr=0x%x, "
3174 "len=0x%x\n",
3175 cpu_to_le32(lower_32_bits(sg_dma_address(s))),
3176 cpu_to_le32(sg_dma_len(s)));
3177 }
3178 remseg -= cnt;
3179 dprintk(5, "qla1280_32bit_start_scsi: "
3180 "continuation packet data - "
3181 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
3182 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3183 qla1280_dump_buffer(5, (char *)pkt,
3184 REQUEST_ENTRY_SIZE);
3185 }
3186 } else { /* No data transfer at all */
3187 dprintk(5, "qla1280_32bit_start_scsi: No data, command "
3188 "packet data - \n");
3189 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3190 }
3191 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
3192 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3193 REQUEST_ENTRY_SIZE);
3194
3195 /* Adjust ring index. */
3196 ha->req_ring_index++;
3197 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3198 ha->req_ring_index = 0;
3199 ha->request_ring_ptr = ha->request_ring;
3200 } else
3201 ha->request_ring_ptr++;
3202
3203 /* Set chip new ring index. */
3204 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
3205 "for pending command\n");
3206 sp->flags |= SRB_SENT;
3207 ha->actthreads++;
3208 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
3209
3210out:
3211 if (status)
3212 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
3213
3214 LEAVE("qla1280_32bit_start_scsi");
3215
3216 return status;
3217}
3218#endif
3219
3220/*
3221 * qla1280_req_pkt
3222 * Function is responsible for locking ring and
3223 * getting a zeroed out request packet.
3224 *
3225 * Input:
3226 * ha = adapter block pointer.
3227 *
3228 * Returns:
3229 * 0 = failed to get slot.
3230 */
3231static request_t *
3232qla1280_req_pkt(struct scsi_qla_host *ha)
3233{
3234 struct device_reg __iomem *reg = ha->iobase;
3235 request_t *pkt = NULL;
3236 int cnt;
3237 uint32_t timer;
3238
3239 ENTER("qla1280_req_pkt");
3240
3241 /*
3242 * This can be called from interrupt context, damn it!!!
3243 */
3244 /* Wait for 30 seconds for slot. */
3245 for (timer = 15000000; timer; timer--) {
3246 if (ha->req_q_cnt > 0) {
3247 /* Calculate number of free request entries. */
3248 cnt = RD_REG_WORD(®->mailbox4);
3249 if (ha->req_ring_index < cnt)
3250 ha->req_q_cnt = cnt - ha->req_ring_index;
3251 else
3252 ha->req_q_cnt =
3253 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3254 }
3255
3256 /* Found empty request ring slot? */
3257 if (ha->req_q_cnt > 0) {
3258 ha->req_q_cnt--;
3259 pkt = ha->request_ring_ptr;
3260
3261 /* Zero out packet. */
3262 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3263
3264 /*
3265 * How can this be right when we have a ring
3266 * size of 512???
3267 */
3268 /* Set system defined field. */
3269 pkt->sys_define = (uint8_t) ha->req_ring_index;
3270
3271 /* Set entry count. */
3272 pkt->entry_count = 1;
3273
3274 break;
3275 }
3276
3277 udelay(2); /* 10 */
3278
3279 /* Check for pending interrupts. */
3280 qla1280_poll(ha);
3281 }
3282
3283 if (!pkt)
3284 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
3285 else
3286 dprintk(3, "qla1280_req_pkt: exiting normally\n");
3287
3288 return pkt;
3289}
3290
3291/*
3292 * qla1280_isp_cmd
3293 * Function is responsible for modifying ISP input pointer.
3294 * Releases ring lock.
3295 *
3296 * Input:
3297 * ha = adapter block pointer.
3298 */
3299static void
3300qla1280_isp_cmd(struct scsi_qla_host *ha)
3301{
3302 struct device_reg __iomem *reg = ha->iobase;
3303
3304 ENTER("qla1280_isp_cmd");
3305
3306 dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
3307 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3308 REQUEST_ENTRY_SIZE);
3309
3310 /* Adjust ring index. */
3311 ha->req_ring_index++;
3312 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3313 ha->req_ring_index = 0;
3314 ha->request_ring_ptr = ha->request_ring;
3315 } else
3316 ha->request_ring_ptr++;
3317
3318 /*
3319 * Update request index to mailbox4 (Request Queue In).
3320 */
3321 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
3322
3323 LEAVE("qla1280_isp_cmd");
3324}
3325
3326/****************************************************************************/
3327/* Interrupt Service Routine. */
3328/****************************************************************************/
3329
3330/****************************************************************************
3331 * qla1280_isr
3332 * Calls I/O done on command completion.
3333 *
3334 * Input:
3335 * ha = adapter block pointer.
3336 * done_q = done queue.
3337 ****************************************************************************/
3338static void
3339qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
3340{
3341 struct device_reg __iomem *reg = ha->iobase;
3342 struct response *pkt;
3343 struct srb *sp = NULL;
3344 uint16_t mailbox[MAILBOX_REGISTER_COUNT];
3345 uint16_t *wptr;
3346 uint32_t index;
3347 u16 istatus;
3348
3349 ENTER("qla1280_isr");
3350
3351 istatus = RD_REG_WORD(®->istatus);
3352 if (!(istatus & (RISC_INT | PCI_INT)))
3353 return;
3354
3355 /* Save mailbox register 5 */
3356 mailbox[5] = RD_REG_WORD(®->mailbox5);
3357
3358 /* Check for mailbox interrupt. */
3359
3360 mailbox[0] = RD_REG_WORD_dmasync(®->semaphore);
3361
3362 if (mailbox[0] & BIT_0) {
3363 /* Get mailbox data. */
3364 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
3365
3366 wptr = &mailbox[0];
3367 *wptr++ = RD_REG_WORD(®->mailbox0);
3368 *wptr++ = RD_REG_WORD(®->mailbox1);
3369 *wptr = RD_REG_WORD(®->mailbox2);
3370 if (mailbox[0] != MBA_SCSI_COMPLETION) {
3371 wptr++;
3372 *wptr++ = RD_REG_WORD(®->mailbox3);
3373 *wptr++ = RD_REG_WORD(®->mailbox4);
3374 wptr++;
3375 *wptr++ = RD_REG_WORD(®->mailbox6);
3376 *wptr = RD_REG_WORD(®->mailbox7);
3377 }
3378
3379 /* Release mailbox registers. */
3380
3381 WRT_REG_WORD(®->semaphore, 0);
3382 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
3383
3384 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
3385 mailbox[0]);
3386
3387 /* Handle asynchronous event */
3388 switch (mailbox[0]) {
3389 case MBA_SCSI_COMPLETION: /* Response completion */
3390 dprintk(5, "qla1280_isr: mailbox SCSI response "
3391 "completion\n");
3392
3393 if (ha->flags.online) {
3394 /* Get outstanding command index. */
3395 index = mailbox[2] << 16 | mailbox[1];
3396
3397 /* Validate handle. */
3398 if (index < MAX_OUTSTANDING_COMMANDS)
3399 sp = ha->outstanding_cmds[index];
3400 else
3401 sp = NULL;
3402
3403 if (sp) {
3404 /* Free outstanding command slot. */
3405 ha->outstanding_cmds[index] = NULL;
3406
3407 /* Save ISP completion status */
3408 CMD_RESULT(sp->cmd) = 0;
3409 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3410
3411 /* Place block on done queue */
3412 list_add_tail(&sp->list, done_q);
3413 } else {
3414 /*
3415 * If we get here we have a real problem!
3416 */
3417 printk(KERN_WARNING
3418 "qla1280: ISP invalid handle\n");
3419 }
3420 }
3421 break;
3422
3423 case MBA_BUS_RESET: /* SCSI Bus Reset */
3424 ha->flags.reset_marker = 1;
3425 index = mailbox[6] & BIT_0;
3426 ha->bus_settings[index].reset_marker = 1;
3427
3428 printk(KERN_DEBUG "qla1280_isr(): index %i "
3429 "asynchronous BUS_RESET\n", index);
3430 break;
3431
3432 case MBA_SYSTEM_ERR: /* System Error */
3433 printk(KERN_WARNING
3434 "qla1280: ISP System Error - mbx1=%xh, mbx2="
3435 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
3436 mailbox[3]);
3437 break;
3438
3439 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
3440 printk(KERN_WARNING
3441 "qla1280: ISP Request Transfer Error\n");
3442 break;
3443
3444 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
3445 printk(KERN_WARNING
3446 "qla1280: ISP Response Transfer Error\n");
3447 break;
3448
3449 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
3450 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
3451 break;
3452
3453 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */
3454 dprintk(2,
3455 "qla1280_isr: asynchronous TIMEOUT_RESET\n");
3456 break;
3457
3458 case MBA_DEVICE_RESET: /* Bus Device Reset */
3459 printk(KERN_INFO "qla1280_isr(): asynchronous "
3460 "BUS_DEVICE_RESET\n");
3461
3462 ha->flags.reset_marker = 1;
3463 index = mailbox[6] & BIT_0;
3464 ha->bus_settings[index].reset_marker = 1;
3465 break;
3466
3467 case MBA_BUS_MODE_CHANGE:
3468 dprintk(2,
3469 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
3470 break;
3471
3472 default:
3473 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
3474 if (mailbox[0] < MBA_ASYNC_EVENT) {
3475 wptr = &mailbox[0];
3476 memcpy((uint16_t *) ha->mailbox_out, wptr,
3477 MAILBOX_REGISTER_COUNT *
3478 sizeof(uint16_t));
3479
3480 if(ha->mailbox_wait != NULL)
3481 complete(ha->mailbox_wait);
3482 }
3483 break;
3484 }
3485 } else {
3486 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
3487 }
3488
3489 /*
3490 * We will receive interrupts during mailbox testing prior to
3491 * the card being marked online, hence the double check.
3492 */
3493 if (!(ha->flags.online && !ha->mailbox_wait)) {
3494 dprintk(2, "qla1280_isr: Response pointer Error\n");
3495 goto out;
3496 }
3497
3498 if (mailbox[5] >= RESPONSE_ENTRY_CNT)
3499 goto out;
3500
3501 while (ha->rsp_ring_index != mailbox[5]) {
3502 pkt = ha->response_ring_ptr;
3503
3504 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
3505 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
3506 dprintk(5,"qla1280_isr: response packet data\n");
3507 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
3508
3509 if (pkt->entry_type == STATUS_TYPE) {
3510 if ((le16_to_cpu(pkt->scsi_status) & 0xff)
3511 || pkt->comp_status || pkt->entry_status) {
3512 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3513 "0x%x mailbox[5] = 0x%x, comp_status "
3514 "= 0x%x, scsi_status = 0x%x\n",
3515 ha->rsp_ring_index, mailbox[5],
3516 le16_to_cpu(pkt->comp_status),
3517 le16_to_cpu(pkt->scsi_status));
3518 }
3519 } else {
3520 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3521 "0x%x, mailbox[5] = 0x%x\n",
3522 ha->rsp_ring_index, mailbox[5]);
3523 dprintk(2, "qla1280_isr: response packet data\n");
3524 qla1280_dump_buffer(2, (char *)pkt,
3525 RESPONSE_ENTRY_SIZE);
3526 }
3527
3528 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
3529 dprintk(2, "status: Cmd %p, handle %i\n",
3530 ha->outstanding_cmds[pkt->handle]->cmd,
3531 pkt->handle);
3532 if (pkt->entry_type == STATUS_TYPE)
3533 qla1280_status_entry(ha, pkt, done_q);
3534 else
3535 qla1280_error_entry(ha, pkt, done_q);
3536 /* Adjust ring index. */
3537 ha->rsp_ring_index++;
3538 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
3539 ha->rsp_ring_index = 0;
3540 ha->response_ring_ptr = ha->response_ring;
3541 } else
3542 ha->response_ring_ptr++;
3543 WRT_REG_WORD(®->mailbox5, ha->rsp_ring_index);
3544 }
3545 }
3546
3547 out:
3548 LEAVE("qla1280_isr");
3549}
3550
3551/*
3552 * qla1280_rst_aen
3553 * Processes asynchronous reset.
3554 *
3555 * Input:
3556 * ha = adapter block pointer.
3557 */
3558static void
3559qla1280_rst_aen(struct scsi_qla_host *ha)
3560{
3561 uint8_t bus;
3562
3563 ENTER("qla1280_rst_aen");
3564
3565 if (ha->flags.online && !ha->flags.reset_active &&
3566 !ha->flags.abort_isp_active) {
3567 ha->flags.reset_active = 1;
3568 while (ha->flags.reset_marker) {
3569 /* Issue marker command. */
3570 ha->flags.reset_marker = 0;
3571 for (bus = 0; bus < ha->ports &&
3572 !ha->flags.reset_marker; bus++) {
3573 if (ha->bus_settings[bus].reset_marker) {
3574 ha->bus_settings[bus].reset_marker = 0;
3575 qla1280_marker(ha, bus, 0, 0,
3576 MK_SYNC_ALL);
3577 }
3578 }
3579 }
3580 }
3581
3582 LEAVE("qla1280_rst_aen");
3583}
3584
3585
3586/*
3587 * qla1280_status_entry
3588 * Processes received ISP status entry.
3589 *
3590 * Input:
3591 * ha = adapter block pointer.
3592 * pkt = entry pointer.
3593 * done_q = done queue.
3594 */
3595static void
3596qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
3597 struct list_head *done_q)
3598{
3599 unsigned int bus, target, lun;
3600 int sense_sz;
3601 struct srb *sp;
3602 struct scsi_cmnd *cmd;
3603 uint32_t handle = le32_to_cpu(pkt->handle);
3604 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
3605 uint16_t comp_status = le16_to_cpu(pkt->comp_status);
3606
3607 ENTER("qla1280_status_entry");
3608
3609 /* Validate handle. */
3610 if (handle < MAX_OUTSTANDING_COMMANDS)
3611 sp = ha->outstanding_cmds[handle];
3612 else
3613 sp = NULL;
3614
3615 if (!sp) {
3616 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
3617 goto out;
3618 }
3619
3620 /* Free outstanding command slot. */
3621 ha->outstanding_cmds[handle] = NULL;
3622
3623 cmd = sp->cmd;
3624
3625 /* Generate LU queue on cntrl, target, LUN */
3626 bus = SCSI_BUS_32(cmd);
3627 target = SCSI_TCN_32(cmd);
3628 lun = SCSI_LUN_32(cmd);
3629
3630 if (comp_status || scsi_status) {
3631 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
3632 "0x%x, handle = 0x%x\n", comp_status,
3633 scsi_status, handle);
3634 }
3635
3636 /* Target busy or queue full */
3637 if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL ||
3638 (scsi_status & 0xFF) == SAM_STAT_BUSY) {
3639 CMD_RESULT(cmd) = scsi_status & 0xff;
3640 } else {
3641
3642 /* Save ISP completion status */
3643 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
3644
3645 if (scsi_status & SAM_STAT_CHECK_CONDITION) {
3646 if (comp_status != CS_ARS_FAILED) {
3647 uint16_t req_sense_length =
3648 le16_to_cpu(pkt->req_sense_length);
3649 if (req_sense_length < CMD_SNSLEN(cmd))
3650 sense_sz = req_sense_length;
3651 else
3652 /*
3653 * scsi_cmnd->sense_buffer is
3654 * 64 bytes, why only copy 63?
3655 * This looks wrong! /Jes
3656 */
3657 sense_sz = CMD_SNSLEN(cmd) - 1;
3658
3659 memcpy(cmd->sense_buffer,
3660 &pkt->req_sense_data, sense_sz);
3661 } else
3662 sense_sz = 0;
3663 memset(cmd->sense_buffer + sense_sz, 0,
3664 SCSI_SENSE_BUFFERSIZE - sense_sz);
3665
3666 dprintk(2, "qla1280_status_entry: Check "
3667 "condition Sense data, b %i, t %i, "
3668 "l %i\n", bus, target, lun);
3669 if (sense_sz)
3670 qla1280_dump_buffer(2,
3671 (char *)cmd->sense_buffer,
3672 sense_sz);
3673 }
3674 }
3675
3676 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3677
3678 /* Place command on done queue. */
3679 list_add_tail(&sp->list, done_q);
3680 out:
3681 LEAVE("qla1280_status_entry");
3682}
3683
3684/*
3685 * qla1280_error_entry
3686 * Processes error entry.
3687 *
3688 * Input:
3689 * ha = adapter block pointer.
3690 * pkt = entry pointer.
3691 * done_q = done queue.
3692 */
3693static void
3694qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
3695 struct list_head *done_q)
3696{
3697 struct srb *sp;
3698 uint32_t handle = le32_to_cpu(pkt->handle);
3699
3700 ENTER("qla1280_error_entry");
3701
3702 if (pkt->entry_status & BIT_3)
3703 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
3704 else if (pkt->entry_status & BIT_2)
3705 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
3706 else if (pkt->entry_status & BIT_1)
3707 dprintk(2, "qla1280_error_entry: FULL flag error\n");
3708 else
3709 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
3710
3711 /* Validate handle. */
3712 if (handle < MAX_OUTSTANDING_COMMANDS)
3713 sp = ha->outstanding_cmds[handle];
3714 else
3715 sp = NULL;
3716
3717 if (sp) {
3718 /* Free outstanding command slot. */
3719 ha->outstanding_cmds[handle] = NULL;
3720
3721 /* Bad payload or header */
3722 if (pkt->entry_status & (BIT_3 + BIT_2)) {
3723 /* Bad payload or header, set error status. */
3724 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
3725 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3726 } else if (pkt->entry_status & BIT_1) { /* FULL flag */
3727 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
3728 } else {
3729 /* Set error status. */
3730 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3731 }
3732
3733 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3734
3735 /* Place command on done queue. */
3736 list_add_tail(&sp->list, done_q);
3737 }
3738#ifdef QLA_64BIT_PTR
3739 else if (pkt->entry_type == COMMAND_A64_TYPE) {
3740 printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
3741 }
3742#endif
3743
3744 LEAVE("qla1280_error_entry");
3745}
3746
3747/*
3748 * qla1280_abort_isp
3749 * Resets ISP and aborts all outstanding commands.
3750 *
3751 * Input:
3752 * ha = adapter block pointer.
3753 *
3754 * Returns:
3755 * 0 = success
3756 */
3757static int
3758qla1280_abort_isp(struct scsi_qla_host *ha)
3759{
3760 struct device_reg __iomem *reg = ha->iobase;
3761 struct srb *sp;
3762 int status = 0;
3763 int cnt;
3764 int bus;
3765
3766 ENTER("qla1280_abort_isp");
3767
3768 if (ha->flags.abort_isp_active || !ha->flags.online)
3769 goto out;
3770
3771 ha->flags.abort_isp_active = 1;
3772
3773 /* Disable ISP interrupts. */
3774 qla1280_disable_intrs(ha);
3775 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC);
3776 RD_REG_WORD(®->id_l);
3777
3778 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
3779 ha->host_no);
3780 /* Dequeue all commands in outstanding command list. */
3781 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3782 struct scsi_cmnd *cmd;
3783 sp = ha->outstanding_cmds[cnt];
3784 if (sp) {
3785 cmd = sp->cmd;
3786 CMD_RESULT(cmd) = DID_RESET << 16;
3787 CMD_HANDLE(cmd) = COMPLETED_HANDLE;
3788 ha->outstanding_cmds[cnt] = NULL;
3789 list_add_tail(&sp->list, &ha->done_q);
3790 }
3791 }
3792
3793 qla1280_done(ha);
3794
3795 status = qla1280_load_firmware(ha);
3796 if (status)
3797 goto out;
3798
3799 /* Setup adapter based on NVRAM parameters. */
3800 qla1280_nvram_config (ha);
3801
3802 status = qla1280_init_rings(ha);
3803 if (status)
3804 goto out;
3805
3806 /* Issue SCSI reset. */
3807 for (bus = 0; bus < ha->ports; bus++)
3808 qla1280_bus_reset(ha, bus);
3809
3810 ha->flags.abort_isp_active = 0;
3811 out:
3812 if (status) {
3813 printk(KERN_WARNING
3814 "qla1280: ISP error recovery failed, board disabled");
3815 qla1280_reset_adapter(ha);
3816 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
3817 }
3818
3819 LEAVE("qla1280_abort_isp");
3820 return status;
3821}
3822
3823
3824/*
3825 * qla1280_debounce_register
3826 * Debounce register.
3827 *
3828 * Input:
3829 * port = register address.
3830 *
3831 * Returns:
3832 * register value.
3833 */
3834static u16
3835qla1280_debounce_register(volatile u16 __iomem * addr)
3836{
3837 volatile u16 ret;
3838 volatile u16 ret2;
3839
3840 ret = RD_REG_WORD(addr);
3841 ret2 = RD_REG_WORD(addr);
3842
3843 if (ret == ret2)
3844 return ret;
3845
3846 do {
3847 cpu_relax();
3848 ret = RD_REG_WORD(addr);
3849 ret2 = RD_REG_WORD(addr);
3850 } while (ret != ret2);
3851
3852 return ret;
3853}
3854
3855
3856/************************************************************************
3857 * qla1280_check_for_dead_scsi_bus *
3858 * *
3859 * This routine checks for a dead SCSI bus *
3860 ************************************************************************/
3861#define SET_SXP_BANK 0x0100
3862#define SCSI_PHASE_INVALID 0x87FF
3863static int
3864qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
3865{
3866 uint16_t config_reg, scsi_control;
3867 struct device_reg __iomem *reg = ha->iobase;
3868
3869 if (ha->bus_settings[bus].scsi_bus_dead) {
3870 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC);
3871 config_reg = RD_REG_WORD(®->cfg_1);
3872 WRT_REG_WORD(®->cfg_1, SET_SXP_BANK);
3873 scsi_control = RD_REG_WORD(®->scsiControlPins);
3874 WRT_REG_WORD(®->cfg_1, config_reg);
3875 WRT_REG_WORD(®->host_cmd, HC_RELEASE_RISC);
3876
3877 if (scsi_control == SCSI_PHASE_INVALID) {
3878 ha->bus_settings[bus].scsi_bus_dead = 1;
3879 return 1; /* bus is dead */
3880 } else {
3881 ha->bus_settings[bus].scsi_bus_dead = 0;
3882 ha->bus_settings[bus].failed_reset_count = 0;
3883 }
3884 }
3885 return 0; /* bus is not dead */
3886}
3887
3888static void
3889qla1280_get_target_parameters(struct scsi_qla_host *ha,
3890 struct scsi_device *device)
3891{
3892 uint16_t mb[MAILBOX_REGISTER_COUNT];
3893 int bus, target, lun;
3894
3895 bus = device->channel;
3896 target = device->id;
3897 lun = device->lun;
3898
3899
3900 mb[0] = MBC_GET_TARGET_PARAMETERS;
3901 mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
3902 mb[1] <<= 8;
3903 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
3904 &mb[0]);
3905
3906 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
3907
3908 if (mb[3] != 0) {
3909 printk(" Sync: period %d, offset %d",
3910 (mb[3] & 0xff), (mb[3] >> 8));
3911 if (mb[2] & BIT_13)
3912 printk(", Wide");
3913 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
3914 printk(", DT");
3915 } else
3916 printk(" Async");
3917
3918 if (device->simple_tags)
3919 printk(", Tagged queuing: depth %d", device->queue_depth);
3920 printk("\n");
3921}
3922
3923
3924#if DEBUG_QLA1280
3925static void
3926__qla1280_dump_buffer(char *b, int size)
3927{
3928 int cnt;
3929 u8 c;
3930
3931 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah "
3932 "Bh Ch Dh Eh Fh\n");
3933 printk(KERN_DEBUG "---------------------------------------------"
3934 "------------------\n");
3935
3936 for (cnt = 0; cnt < size;) {
3937 c = *b++;
3938
3939 printk("0x%02x", c);
3940 cnt++;
3941 if (!(cnt % 16))
3942 printk("\n");
3943 else
3944 printk(" ");
3945 }
3946 if (cnt % 16)
3947 printk("\n");
3948}
3949
3950/**************************************************************************
3951 * ql1280_print_scsi_cmd
3952 *
3953 **************************************************************************/
3954static void
3955__qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
3956{
3957 struct scsi_qla_host *ha;
3958 struct Scsi_Host *host = CMD_HOST(cmd);
3959 struct srb *sp;
3960 /* struct scatterlist *sg; */
3961
3962 int i;
3963 ha = (struct scsi_qla_host *)host->hostdata;
3964
3965 sp = (struct srb *)CMD_SP(cmd);
3966 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
3967 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
3968 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
3969 CMD_CDBLEN(cmd));
3970 printk(" CDB = ");
3971 for (i = 0; i < cmd->cmd_len; i++) {
3972 printk("0x%02x ", cmd->cmnd[i]);
3973 }
3974 printk(" seg_cnt =%d\n", scsi_sg_count(cmd));
3975 printk(" request buffer=0x%p, request buffer len=0x%x\n",
3976 scsi_sglist(cmd), scsi_bufflen(cmd));
3977 /* if (cmd->use_sg)
3978 {
3979 sg = (struct scatterlist *) cmd->request_buffer;
3980 printk(" SG buffer: \n");
3981 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
3982 } */
3983 printk(" tag=%d, transfersize=0x%x \n",
3984 cmd->tag, cmd->transfersize);
3985 printk(" SP=0x%p\n", CMD_SP(cmd));
3986 printk(" underflow size = 0x%x, direction=0x%x\n",
3987 cmd->underflow, cmd->sc_data_direction);
3988}
3989
3990/**************************************************************************
3991 * ql1280_dump_device
3992 *
3993 **************************************************************************/
3994static void
3995ql1280_dump_device(struct scsi_qla_host *ha)
3996{
3997
3998 struct scsi_cmnd *cp;
3999 struct srb *sp;
4000 int i;
4001
4002 printk(KERN_DEBUG "Outstanding Commands on controller:\n");
4003
4004 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
4005 if ((sp = ha->outstanding_cmds[i]) == NULL)
4006 continue;
4007 if ((cp = sp->cmd) == NULL)
4008 continue;
4009 qla1280_print_scsi_cmd(1, cp);
4010 }
4011}
4012#endif
4013
4014
4015enum tokens {
4016 TOKEN_NVRAM,
4017 TOKEN_SYNC,
4018 TOKEN_WIDE,
4019 TOKEN_PPR,
4020 TOKEN_VERBOSE,
4021 TOKEN_DEBUG,
4022};
4023
4024struct setup_tokens {
4025 char *token;
4026 int val;
4027};
4028
4029static struct setup_tokens setup_token[] __initdata =
4030{
4031 { "nvram", TOKEN_NVRAM },
4032 { "sync", TOKEN_SYNC },
4033 { "wide", TOKEN_WIDE },
4034 { "ppr", TOKEN_PPR },
4035 { "verbose", TOKEN_VERBOSE },
4036 { "debug", TOKEN_DEBUG },
4037};
4038
4039
4040/**************************************************************************
4041 * qla1280_setup
4042 *
4043 * Handle boot parameters. This really needs to be changed so one
4044 * can specify per adapter parameters.
4045 **************************************************************************/
4046static int __init
4047qla1280_setup(char *s)
4048{
4049 char *cp, *ptr;
4050 unsigned long val;
4051 int toke;
4052
4053 cp = s;
4054
4055 while (cp && (ptr = strchr(cp, ':'))) {
4056 ptr++;
4057 if (!strcmp(ptr, "yes")) {
4058 val = 0x10000;
4059 ptr += 3;
4060 } else if (!strcmp(ptr, "no")) {
4061 val = 0;
4062 ptr += 2;
4063 } else
4064 val = simple_strtoul(ptr, &ptr, 0);
4065
4066 switch ((toke = qla1280_get_token(cp))) {
4067 case TOKEN_NVRAM:
4068 if (!val)
4069 driver_setup.no_nvram = 1;
4070 break;
4071 case TOKEN_SYNC:
4072 if (!val)
4073 driver_setup.no_sync = 1;
4074 else if (val != 0x10000)
4075 driver_setup.sync_mask = val;
4076 break;
4077 case TOKEN_WIDE:
4078 if (!val)
4079 driver_setup.no_wide = 1;
4080 else if (val != 0x10000)
4081 driver_setup.wide_mask = val;
4082 break;
4083 case TOKEN_PPR:
4084 if (!val)
4085 driver_setup.no_ppr = 1;
4086 else if (val != 0x10000)
4087 driver_setup.ppr_mask = val;
4088 break;
4089 case TOKEN_VERBOSE:
4090 qla1280_verbose = val;
4091 break;
4092 default:
4093 printk(KERN_INFO "qla1280: unknown boot option %s\n",
4094 cp);
4095 }
4096
4097 cp = strchr(ptr, ';');
4098 if (cp)
4099 cp++;
4100 else {
4101 break;
4102 }
4103 }
4104 return 1;
4105}
4106
4107
4108static int __init
4109qla1280_get_token(char *str)
4110{
4111 char *sep;
4112 long ret = -1;
4113 int i;
4114
4115 sep = strchr(str, ':');
4116
4117 if (sep) {
4118 for (i = 0; i < ARRAY_SIZE(setup_token); i++) {
4119 if (!strncmp(setup_token[i].token, str, (sep - str))) {
4120 ret = setup_token[i].val;
4121 break;
4122 }
4123 }
4124 }
4125
4126 return ret;
4127}
4128
4129
4130static struct scsi_host_template qla1280_driver_template = {
4131 .module = THIS_MODULE,
4132 .proc_name = "qla1280",
4133 .name = "Qlogic ISP 1280/12160",
4134 .info = qla1280_info,
4135 .slave_configure = qla1280_slave_configure,
4136 .queuecommand = qla1280_queuecommand,
4137 .eh_abort_handler = qla1280_eh_abort,
4138 .eh_device_reset_handler= qla1280_eh_device_reset,
4139 .eh_bus_reset_handler = qla1280_eh_bus_reset,
4140 .eh_host_reset_handler = qla1280_eh_adapter_reset,
4141 .bios_param = qla1280_biosparam,
4142 .can_queue = MAX_OUTSTANDING_COMMANDS,
4143 .this_id = -1,
4144 .sg_tablesize = SG_ALL,
4145};
4146
4147
4148static int
4149qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4150{
4151 int devnum = id->driver_data;
4152 struct qla_boards *bdp = &ql1280_board_tbl[devnum];
4153 struct Scsi_Host *host;
4154 struct scsi_qla_host *ha;
4155 int error = -ENODEV;
4156
4157 /* Bypass all AMI SUBSYS VENDOR IDs */
4158 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
4159 printk(KERN_INFO
4160 "qla1280: Skipping AMI SubSys Vendor ID Chip\n");
4161 goto error;
4162 }
4163
4164 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
4165 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
4166
4167 if (pci_enable_device(pdev)) {
4168 printk(KERN_WARNING
4169 "qla1280: Failed to enabled pci device, aborting.\n");
4170 goto error;
4171 }
4172
4173 pci_set_master(pdev);
4174
4175 error = -ENOMEM;
4176 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
4177 if (!host) {
4178 printk(KERN_WARNING
4179 "qla1280: Failed to register host, aborting.\n");
4180 goto error_disable_device;
4181 }
4182
4183 ha = (struct scsi_qla_host *)host->hostdata;
4184 memset(ha, 0, sizeof(struct scsi_qla_host));
4185
4186 ha->pdev = pdev;
4187 ha->devnum = devnum; /* specifies microcode load address */
4188
4189#ifdef QLA_64BIT_PTR
4190 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) {
4191 if (dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32))) {
4192 printk(KERN_WARNING "scsi(%li): Unable to set a "
4193 "suitable DMA mask - aborting\n", ha->host_no);
4194 error = -ENODEV;
4195 goto error_put_host;
4196 }
4197 } else
4198 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
4199 ha->host_no);
4200#else
4201 if (dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32))) {
4202 printk(KERN_WARNING "scsi(%li): Unable to set a "
4203 "suitable DMA mask - aborting\n", ha->host_no);
4204 error = -ENODEV;
4205 goto error_put_host;
4206 }
4207#endif
4208
4209 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
4210 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
4211 &ha->request_dma, GFP_KERNEL);
4212 if (!ha->request_ring) {
4213 printk(KERN_INFO "qla1280: Failed to get request memory\n");
4214 goto error_put_host;
4215 }
4216
4217 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
4218 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
4219 &ha->response_dma, GFP_KERNEL);
4220 if (!ha->response_ring) {
4221 printk(KERN_INFO "qla1280: Failed to get response memory\n");
4222 goto error_free_request_ring;
4223 }
4224
4225 ha->ports = bdp->numPorts;
4226
4227 ha->host = host;
4228 ha->host_no = host->host_no;
4229
4230 host->irq = pdev->irq;
4231 host->max_channel = bdp->numPorts - 1;
4232 host->max_lun = MAX_LUNS - 1;
4233 host->max_id = MAX_TARGETS;
4234 host->max_sectors = 1024;
4235 host->unique_id = host->host_no;
4236
4237 error = -ENODEV;
4238
4239#if MEMORY_MAPPED_IO
4240 ha->mmpbase = pci_ioremap_bar(ha->pdev, 1);
4241 if (!ha->mmpbase) {
4242 printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
4243 goto error_free_response_ring;
4244 }
4245
4246 host->base = (unsigned long)ha->mmpbase;
4247 ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
4248#else
4249 host->io_port = pci_resource_start(ha->pdev, 0);
4250 if (!request_region(host->io_port, 0xff, "qla1280")) {
4251 printk(KERN_INFO "qla1280: Failed to reserve i/o region "
4252 "0x%04lx-0x%04lx - already in use\n",
4253 host->io_port, host->io_port + 0xff);
4254 goto error_free_response_ring;
4255 }
4256
4257 ha->iobase = (struct device_reg *)host->io_port;
4258#endif
4259
4260 INIT_LIST_HEAD(&ha->done_q);
4261
4262 /* Disable ISP interrupts. */
4263 qla1280_disable_intrs(ha);
4264
4265 if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED,
4266 "qla1280", ha)) {
4267 printk("qla1280 : Failed to reserve interrupt %d already "
4268 "in use\n", pdev->irq);
4269 goto error_release_region;
4270 }
4271
4272 /* load the F/W, read paramaters, and init the H/W */
4273 if (qla1280_initialize_adapter(ha)) {
4274 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
4275 goto error_free_irq;
4276 }
4277
4278 /* set our host ID (need to do something about our two IDs) */
4279 host->this_id = ha->bus_settings[0].id;
4280
4281 pci_set_drvdata(pdev, host);
4282
4283 error = scsi_add_host(host, &pdev->dev);
4284 if (error)
4285 goto error_disable_adapter;
4286 scsi_scan_host(host);
4287
4288 return 0;
4289
4290 error_disable_adapter:
4291 qla1280_disable_intrs(ha);
4292 error_free_irq:
4293 free_irq(pdev->irq, ha);
4294 error_release_region:
4295#if MEMORY_MAPPED_IO
4296 iounmap(ha->mmpbase);
4297#else
4298 release_region(host->io_port, 0xff);
4299#endif
4300 error_free_response_ring:
4301 dma_free_coherent(&ha->pdev->dev,
4302 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
4303 ha->response_ring, ha->response_dma);
4304 error_free_request_ring:
4305 dma_free_coherent(&ha->pdev->dev,
4306 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
4307 ha->request_ring, ha->request_dma);
4308 error_put_host:
4309 scsi_host_put(host);
4310 error_disable_device:
4311 pci_disable_device(pdev);
4312 error:
4313 return error;
4314}
4315
4316
4317static void
4318qla1280_remove_one(struct pci_dev *pdev)
4319{
4320 struct Scsi_Host *host = pci_get_drvdata(pdev);
4321 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
4322
4323 scsi_remove_host(host);
4324
4325 qla1280_disable_intrs(ha);
4326
4327 free_irq(pdev->irq, ha);
4328
4329#if MEMORY_MAPPED_IO
4330 iounmap(ha->mmpbase);
4331#else
4332 release_region(host->io_port, 0xff);
4333#endif
4334
4335 dma_free_coherent(&ha->pdev->dev,
4336 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4337 ha->request_ring, ha->request_dma);
4338 dma_free_coherent(&ha->pdev->dev,
4339 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4340 ha->response_ring, ha->response_dma);
4341
4342 pci_disable_device(pdev);
4343
4344 scsi_host_put(host);
4345}
4346
4347static struct pci_driver qla1280_pci_driver = {
4348 .name = "qla1280",
4349 .id_table = qla1280_pci_tbl,
4350 .probe = qla1280_probe_one,
4351 .remove = qla1280_remove_one,
4352};
4353
4354static int __init
4355qla1280_init(void)
4356{
4357 if (sizeof(struct srb) > sizeof(struct scsi_pointer)) {
4358 printk(KERN_WARNING
4359 "qla1280: struct srb too big, aborting\n");
4360 return -EINVAL;
4361 }
4362
4363#ifdef MODULE
4364 /*
4365 * If we are called as a module, the qla1280 pointer may not be null
4366 * and it would point to our bootup string, just like on the lilo
4367 * command line. IF not NULL, then process this config string with
4368 * qla1280_setup
4369 *
4370 * Boot time Options
4371 * To add options at boot time add a line to your lilo.conf file like:
4372 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
4373 * which will result in the first four devices on the first two
4374 * controllers being set to a tagged queue depth of 32.
4375 */
4376 if (qla1280)
4377 qla1280_setup(qla1280);
4378#endif
4379
4380 return pci_register_driver(&qla1280_pci_driver);
4381}
4382
4383static void __exit
4384qla1280_exit(void)
4385{
4386 int i;
4387
4388 pci_unregister_driver(&qla1280_pci_driver);
4389 /* release any allocated firmware images */
4390 for (i = 0; i < QL_NUM_FW_IMAGES; i++) {
4391 release_firmware(qla1280_fw_tbl[i].fw);
4392 qla1280_fw_tbl[i].fw = NULL;
4393 }
4394}
4395
4396module_init(qla1280_init);
4397module_exit(qla1280_exit);
4398
4399MODULE_AUTHOR("Qlogic & Jes Sorensen");
4400MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
4401MODULE_LICENSE("GPL");
4402MODULE_FIRMWARE("qlogic/1040.bin");
4403MODULE_FIRMWARE("qlogic/1280.bin");
4404MODULE_FIRMWARE("qlogic/12160.bin");
4405MODULE_VERSION(QLA1280_VERSION);
4406
4407/*
4408 * Overrides for Emacs so that we almost follow Linus's tabbing style.
4409 * Emacs will notice this stuff at the end of the file and automatically
4410 * adjust the settings for this buffer only. This must remain at the end
4411 * of the file.
4412 * ---------------------------------------------------------------------------
4413 * Local variables:
4414 * c-basic-offset: 8
4415 * tab-width: 8
4416 * End:
4417 */