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