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1/******************************************************************************
2* QLOGIC LINUX SOFTWARE
3*
4* QLogic QLA1280 (Ultra2) and QLA12160 (Ultra3) SCSI driver
5* Copyright (C) 2000 Qlogic Corporation (www.qlogic.com)
6* Copyright (C) 2001-2004 Jes Sorensen, Wild Open Source Inc.
7* Copyright (C) 2003-2004 Christoph Hellwig
8*
9* This program is free software; you can redistribute it and/or modify it
10* under the terms of the GNU General Public License as published by the
11* Free Software Foundation; either version 2, or (at your option) any
12* later version.
13*
14* This program is distributed in the hope that it will be useful, but
15* WITHOUT ANY WARRANTY; without even the implied warranty of
16* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17* General Public License for more details.
18*
19******************************************************************************/
20#define QLA1280_VERSION "3.27.1"
21/*****************************************************************************
22 Revision History:
23 Rev 3.27.1, February 8, 2010, Michael Reed
24 - Retain firmware image for error recovery.
25 Rev 3.27, February 10, 2009, Michael Reed
26 - General code cleanup.
27 - Improve error recovery.
28 Rev 3.26, January 16, 2006 Jes Sorensen
29 - Ditch all < 2.6 support
30 Rev 3.25.1, February 10, 2005 Christoph Hellwig
31 - use pci_map_single to map non-S/G requests
32 - remove qla1280_proc_info
33 Rev 3.25, September 28, 2004, Christoph Hellwig
34 - add support for ISP1020/1040
35 - don't include "scsi.h" anymore for 2.6.x
36 Rev 3.24.4 June 7, 2004 Christoph Hellwig
37 - restructure firmware loading, cleanup initialization code
38 - prepare support for ISP1020/1040 chips
39 Rev 3.24.3 January 19, 2004, Jes Sorensen
40 - Handle PCI DMA mask settings correctly
41 - Correct order of error handling in probe_one, free_irq should not
42 be called if request_irq failed
43 Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez
44 - Big endian fixes (James)
45 - Remove bogus IOCB content on zero data transfer commands (Andrew)
46 Rev 3.24.1 January 5, 2004, Jes Sorensen
47 - Initialize completion queue to avoid OOPS on probe
48 - Handle interrupts during mailbox testing
49 Rev 3.24 November 17, 2003, Christoph Hellwig
50 - use struct list_head for completion queue
51 - avoid old Scsi_FOO typedefs
52 - cleanup 2.4 compat glue a bit
53 - use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h"
54 - make initialization for memory mapped vs port I/O more similar
55 - remove broken pci config space manipulation
56 - kill more cruft
57 - this is an almost perfect 2.6 scsi driver now! ;)
58 Rev 3.23.39 December 17, 2003, Jes Sorensen
59 - Delete completion queue from srb if mailbox command failed to
60 to avoid qla1280_done completeting qla1280_error_action's
61 obsolete context
62 - Reduce arguments for qla1280_done
63 Rev 3.23.38 October 18, 2003, Christoph Hellwig
64 - Convert to new-style hotplugable driver for 2.6
65 - Fix missing scsi_unregister/scsi_host_put on HBA removal
66 - Kill some more cruft
67 Rev 3.23.37 October 1, 2003, Jes Sorensen
68 - Make MMIO depend on CONFIG_X86_VISWS instead of yet another
69 random CONFIG option
70 - Clean up locking in probe path
71 Rev 3.23.36 October 1, 2003, Christoph Hellwig
72 - queuecommand only ever receives new commands - clear flags
73 - Reintegrate lost fixes from Linux 2.5
74 Rev 3.23.35 August 14, 2003, Jes Sorensen
75 - Build against 2.6
76 Rev 3.23.34 July 23, 2003, Jes Sorensen
77 - Remove pointless TRUE/FALSE macros
78 - Clean up vchan handling
79 Rev 3.23.33 July 3, 2003, Jes Sorensen
80 - Don't define register access macros before define determining MMIO.
81 This just happened to work out on ia64 but not elsewhere.
82 - Don't try and read from the card while it is in reset as
83 it won't respond and causes an MCA
84 Rev 3.23.32 June 23, 2003, Jes Sorensen
85 - Basic support for boot time arguments
86 Rev 3.23.31 June 8, 2003, Jes Sorensen
87 - Reduce boot time messages
88 Rev 3.23.30 June 6, 2003, Jes Sorensen
89 - Do not enable sync/wide/ppr before it has been determined
90 that the target device actually supports it
91 - Enable DMA arbitration for multi channel controllers
92 Rev 3.23.29 June 3, 2003, Jes Sorensen
93 - Port to 2.5.69
94 Rev 3.23.28 June 3, 2003, Jes Sorensen
95 - Eliminate duplicate marker commands on bus resets
96 - Handle outstanding commands appropriately on bus/device resets
97 Rev 3.23.27 May 28, 2003, Jes Sorensen
98 - Remove bogus input queue code, let the Linux SCSI layer do the work
99 - Clean up NVRAM handling, only read it once from the card
100 - Add a number of missing default nvram parameters
101 Rev 3.23.26 Beta May 28, 2003, Jes Sorensen
102 - Use completion queue for mailbox commands instead of busy wait
103 Rev 3.23.25 Beta May 27, 2003, James Bottomley
104 - Migrate to use new error handling code
105 Rev 3.23.24 Beta May 21, 2003, James Bottomley
106 - Big endian support
107 - Cleanup data direction code
108 Rev 3.23.23 Beta May 12, 2003, Jes Sorensen
109 - Switch to using MMIO instead of PIO
110 Rev 3.23.22 Beta April 15, 2003, Jes Sorensen
111 - Fix PCI parity problem with 12160 during reset.
112 Rev 3.23.21 Beta April 14, 2003, Jes Sorensen
113 - Use pci_map_page()/pci_unmap_page() instead of map_single version.
114 Rev 3.23.20 Beta April 9, 2003, Jes Sorensen
115 - Remove < 2.4.x support
116 - Introduce HOST_LOCK to make the spin lock changes portable.
117 - Remove a bunch of idiotic and unnecessary typedef's
118 - Kill all leftovers of target-mode support which never worked anyway
119 Rev 3.23.19 Beta April 11, 2002, Linus Torvalds
120 - Do qla1280_pci_config() before calling request_irq() and
121 request_region()
122 - Use pci_dma_hi32() to handle upper word of DMA addresses instead
123 of large shifts
124 - Hand correct arguments to free_irq() in case of failure
125 Rev 3.23.18 Beta April 11, 2002, Jes Sorensen
126 - Run source through Lindent and clean up the output
127 Rev 3.23.17 Beta April 11, 2002, Jes Sorensen
128 - Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32
129 Rev 3.23.16 Beta March 19, 2002, Jes Sorensen
130 - Rely on mailbox commands generating interrupts - do not
131 run qla1280_isr() from ql1280_mailbox_command()
132 - Remove device_reg_t
133 - Integrate ql12160_set_target_parameters() with 1280 version
134 - Make qla1280_setup() non static
135 - Do not call qla1280_check_for_dead_scsi_bus() on every I/O request
136 sent to the card - this command pauses the firmware!!!
137 Rev 3.23.15 Beta March 19, 2002, Jes Sorensen
138 - Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions
139 - Remove a pile of pointless and confusing (srb_t **) and
140 (scsi_lu_t *) typecasts
141 - Explicit mark that we do not use the new error handling (for now)
142 - Remove scsi_qla_host_t and use 'struct' instead
143 - Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled,
144 pci_64bit_slot flags which weren't used for anything anyway
145 - Grab host->host_lock while calling qla1280_isr() from abort()
146 - Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we
147 do not need to save/restore flags in the interrupt handler
148 - Enable interrupts early (before any mailbox access) in preparation
149 for cleaning up the mailbox handling
150 Rev 3.23.14 Beta March 14, 2002, Jes Sorensen
151 - Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace
152 it with proper use of dprintk().
153 - Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take
154 a debug level argument to determine if data is to be printed
155 - Add KERN_* info to printk()
156 Rev 3.23.13 Beta March 14, 2002, Jes Sorensen
157 - Significant cosmetic cleanups
158 - Change debug code to use dprintk() and remove #if mess
159 Rev 3.23.12 Beta March 13, 2002, Jes Sorensen
160 - More cosmetic cleanups, fix places treating return as function
161 - use cpu_relax() in qla1280_debounce_register()
162 Rev 3.23.11 Beta March 13, 2002, Jes Sorensen
163 - Make it compile under 2.5.5
164 Rev 3.23.10 Beta October 1, 2001, Jes Sorensen
165 - Do no typecast short * to long * in QL1280BoardTbl, this
166 broke miserably on big endian boxes
167 Rev 3.23.9 Beta September 30, 2001, Jes Sorensen
168 - Remove pre 2.2 hack for checking for reentrance in interrupt handler
169 - Make data types used to receive from SCSI_{BUS,TCN,LUN}_32
170 unsigned int to match the types from struct scsi_cmnd
171 Rev 3.23.8 Beta September 29, 2001, Jes Sorensen
172 - Remove bogus timer_t typedef from qla1280.h
173 - Remove obsolete pre 2.2 PCI setup code, use proper #define's
174 for PCI_ values, call pci_set_master()
175 - Fix memleak of qla1280_buffer on module unload
176 - Only compile module parsing code #ifdef MODULE - should be
177 changed to use individual MODULE_PARM's later
178 - Remove dummy_buffer that was never modified nor printed
179 - ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove
180 #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls
181 - Remove \r from print statements, this is Linux, not DOS
182 - Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK}
183 dummy macros
184 - Remove C++ compile hack in header file as Linux driver are not
185 supposed to be compiled as C++
186 - Kill MS_64BITS macro as it makes the code more readable
187 - Remove unnecessary flags.in_interrupts bit
188 Rev 3.23.7 Beta August 20, 2001, Jes Sorensen
189 - Dont' check for set flags on q->q_flag one by one in qla1280_next()
190 - Check whether the interrupt was generated by the QLA1280 before
191 doing any processing
192 - qla1280_status_entry(): Only zero out part of sense_buffer that
193 is not being copied into
194 - Remove more superflouous typecasts
195 - qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy()
196 Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel
197 - Don't walk the entire list in qla1280_putq_t() just to directly
198 grab the pointer to the last element afterwards
199 Rev 3.23.5 Beta August 9, 2001, Jes Sorensen
200 - Don't use IRQF_DISABLED, it's use is deprecated for this kinda driver
201 Rev 3.23.4 Beta August 8, 2001, Jes Sorensen
202 - Set dev->max_sectors to 1024
203 Rev 3.23.3 Beta August 6, 2001, Jes Sorensen
204 - Provide compat macros for pci_enable_device(), pci_find_subsys()
205 and scsi_set_pci_device()
206 - Call scsi_set_pci_device() for all devices
207 - Reduce size of kernel version dependent device probe code
208 - Move duplicate probe/init code to separate function
209 - Handle error if qla1280_mem_alloc() fails
210 - Kill OFFSET() macro and use Linux's PCI definitions instead
211 - Kill private structure defining PCI config space (struct config_reg)
212 - Only allocate I/O port region if not in MMIO mode
213 - Remove duplicate (unused) sanity check of sife of srb_t
214 Rev 3.23.2 Beta August 6, 2001, Jes Sorensen
215 - Change home-brew memset() implementations to use memset()
216 - Remove all references to COMTRACE() - accessing a PC's COM2 serial
217 port directly is not legal under Linux.
218 Rev 3.23.1 Beta April 24, 2001, Jes Sorensen
219 - Remove pre 2.2 kernel support
220 - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat)
221 - Fix MMIO access to use readl/writel instead of directly
222 dereferencing pointers
223 - Nuke MSDOS debugging code
224 - Change true/false data types to int from uint8_t
225 - Use int for counters instead of uint8_t etc.
226 - Clean up size & byte order conversion macro usage
227 Rev 3.23 Beta January 11, 2001 BN Qlogic
228 - Added check of device_id when handling non
229 QLA12160s during detect().
230 Rev 3.22 Beta January 5, 2001 BN Qlogic
231 - Changed queue_task() to schedule_task()
232 for kernels 2.4.0 and higher.
233 Note: 2.4.0-testxx kernels released prior to
234 the actual 2.4.0 kernel release on January 2001
235 will get compile/link errors with schedule_task().
236 Please update your kernel to released 2.4.0 level,
237 or comment lines in this file flagged with 3.22
238 to resolve compile/link error of schedule_task().
239 - Added -DCONFIG_SMP in addition to -D__SMP__
240 in Makefile for 2.4.0 builds of driver as module.
241 Rev 3.21 Beta January 4, 2001 BN Qlogic
242 - Changed criteria of 64/32 Bit mode of HBA
243 operation according to BITS_PER_LONG rather
244 than HBA's NVRAM setting of >4Gig memory bit;
245 so that the HBA auto-configures without the need
246 to setup each system individually.
247 Rev 3.20 Beta December 5, 2000 BN Qlogic
248 - Added priority handling to IA-64 onboard SCSI
249 ISP12160 chip for kernels greater than 2.3.18.
250 - Added irqrestore for qla1280_intr_handler.
251 - Enabled /proc/scsi/qla1280 interface.
252 - Clear /proc/scsi/qla1280 counters in detect().
253 Rev 3.19 Beta October 13, 2000 BN Qlogic
254 - Declare driver_template for new kernel
255 (2.4.0 and greater) scsi initialization scheme.
256 - Update /proc/scsi entry for 2.3.18 kernels and
257 above as qla1280
258 Rev 3.18 Beta October 10, 2000 BN Qlogic
259 - Changed scan order of adapters to map
260 the QLA12160 followed by the QLA1280.
261 Rev 3.17 Beta September 18, 2000 BN Qlogic
262 - Removed warnings for 32 bit 2.4.x compiles
263 - Corrected declared size for request and response
264 DMA addresses that are kept in each ha
265 Rev. 3.16 Beta August 25, 2000 BN Qlogic
266 - Corrected 64 bit addressing issue on IA-64
267 where the upper 32 bits were not properly
268 passed to the RISC engine.
269 Rev. 3.15 Beta August 22, 2000 BN Qlogic
270 - Modified qla1280_setup_chip to properly load
271 ISP firmware for greater that 4 Gig memory on IA-64
272 Rev. 3.14 Beta August 16, 2000 BN Qlogic
273 - Added setting of dma_mask to full 64 bit
274 if flags.enable_64bit_addressing is set in NVRAM
275 Rev. 3.13 Beta August 16, 2000 BN Qlogic
276 - Use new PCI DMA mapping APIs for 2.4.x kernel
277 Rev. 3.12 July 18, 2000 Redhat & BN Qlogic
278 - Added check of pci_enable_device to detect() for 2.3.x
279 - Use pci_resource_start() instead of
280 pdev->resource[0].start in detect() for 2.3.x
281 - Updated driver version
282 Rev. 3.11 July 14, 2000 BN Qlogic
283 - Updated SCSI Firmware to following versions:
284 qla1x80: 8.13.08
285 qla1x160: 10.04.08
286 - Updated driver version to 3.11
287 Rev. 3.10 June 23, 2000 BN Qlogic
288 - Added filtering of AMI SubSys Vendor ID devices
289 Rev. 3.9
290 - DEBUG_QLA1280 undefined and new version BN Qlogic
291 Rev. 3.08b May 9, 2000 MD Dell
292 - Added logic to check against AMI subsystem vendor ID
293 Rev. 3.08 May 4, 2000 DG Qlogic
294 - Added logic to check for PCI subsystem ID.
295 Rev. 3.07 Apr 24, 2000 DG & BN Qlogic
296 - Updated SCSI Firmware to following versions:
297 qla12160: 10.01.19
298 qla1280: 8.09.00
299 Rev. 3.06 Apr 12, 2000 DG & BN Qlogic
300 - Internal revision; not released
301 Rev. 3.05 Mar 28, 2000 DG & BN Qlogic
302 - Edit correction for virt_to_bus and PROC.
303 Rev. 3.04 Mar 28, 2000 DG & BN Qlogic
304 - Merge changes from ia64 port.
305 Rev. 3.03 Mar 28, 2000 BN Qlogic
306 - Increase version to reflect new code drop with compile fix
307 of issue with inclusion of linux/spinlock for 2.3 kernels
308 Rev. 3.02 Mar 15, 2000 BN Qlogic
309 - Merge qla1280_proc_info from 2.10 code base
310 Rev. 3.01 Feb 10, 2000 BN Qlogic
311 - Corrected code to compile on a 2.2.x kernel.
312 Rev. 3.00 Jan 17, 2000 DG Qlogic
313 - Added 64-bit support.
314 Rev. 2.07 Nov 9, 1999 DG Qlogic
315 - Added new routine to set target parameters for ISP12160.
316 Rev. 2.06 Sept 10, 1999 DG Qlogic
317 - Added support for ISP12160 Ultra 3 chip.
318 Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont
319 - Modified code to remove errors generated when compiling with
320 Cygnus IA64 Compiler.
321 - Changed conversion of pointers to unsigned longs instead of integers.
322 - Changed type of I/O port variables from uint32_t to unsigned long.
323 - Modified OFFSET macro to work with 64-bit as well as 32-bit.
324 - Changed sprintf and printk format specifiers for pointers to %p.
325 - Changed some int to long type casts where needed in sprintf & printk.
326 - Added l modifiers to sprintf and printk format specifiers for longs.
327 - Removed unused local variables.
328 Rev. 1.20 June 8, 1999 DG, Qlogic
329 Changes to support RedHat release 6.0 (kernel 2.2.5).
330 - Added SCSI exclusive access lock (io_request_lock) when accessing
331 the adapter.
332 - Added changes for the new LINUX interface template. Some new error
333 handling routines have been added to the template, but for now we
334 will use the old ones.
335 - Initial Beta Release.
336*****************************************************************************/
337
338
339#include <linux/module.h>
340
341#include <linux/types.h>
342#include <linux/string.h>
343#include <linux/errno.h>
344#include <linux/kernel.h>
345#include <linux/ioport.h>
346#include <linux/delay.h>
347#include <linux/timer.h>
348#include <linux/pci.h>
349#include <linux/proc_fs.h>
350#include <linux/stat.h>
351#include <linux/pci_ids.h>
352#include <linux/interrupt.h>
353#include <linux/init.h>
354#include <linux/dma-mapping.h>
355#include <linux/firmware.h>
356
357#include <asm/io.h>
358#include <asm/irq.h>
359#include <asm/byteorder.h>
360#include <asm/processor.h>
361#include <asm/types.h>
362#include <asm/system.h>
363
364#include <scsi/scsi.h>
365#include <scsi/scsi_cmnd.h>
366#include <scsi/scsi_device.h>
367#include <scsi/scsi_host.h>
368#include <scsi/scsi_tcq.h>
369
370#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
371#include <asm/sn/io.h>
372#endif
373
374
375/*
376 * Compile time Options:
377 * 0 - Disable and 1 - Enable
378 */
379#define DEBUG_QLA1280_INTR 0
380#define DEBUG_PRINT_NVRAM 0
381#define DEBUG_QLA1280 0
382
383/*
384 * The SGI VISWS is broken and doesn't support MMIO ;-(
385 */
386#ifdef CONFIG_X86_VISWS
387#define MEMORY_MAPPED_IO 0
388#else
389#define MEMORY_MAPPED_IO 1
390#endif
391
392#include "qla1280.h"
393
394#ifndef BITS_PER_LONG
395#error "BITS_PER_LONG not defined!"
396#endif
397#if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM
398#define QLA_64BIT_PTR 1
399#endif
400
401#ifdef QLA_64BIT_PTR
402#define pci_dma_hi32(a) ((a >> 16) >> 16)
403#else
404#define pci_dma_hi32(a) 0
405#endif
406#define pci_dma_lo32(a) (a & 0xffffffff)
407
408#define NVRAM_DELAY() udelay(500) /* 2 microseconds */
409
410#if defined(__ia64__) && !defined(ia64_platform_is)
411#define ia64_platform_is(foo) (!strcmp(x, platform_name))
412#endif
413
414
415#define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020)
416#define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \
417 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240)
418#define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \
419 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160)
420
421
422static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *);
423static void qla1280_remove_one(struct pci_dev *);
424
425/*
426 * QLogic Driver Support Function Prototypes.
427 */
428static void qla1280_done(struct scsi_qla_host *);
429static int qla1280_get_token(char *);
430static int qla1280_setup(char *s) __init;
431
432/*
433 * QLogic ISP1280 Hardware Support Function Prototypes.
434 */
435static int qla1280_load_firmware(struct scsi_qla_host *);
436static int qla1280_init_rings(struct scsi_qla_host *);
437static int qla1280_nvram_config(struct scsi_qla_host *);
438static int qla1280_mailbox_command(struct scsi_qla_host *,
439 uint8_t, uint16_t *);
440static int qla1280_bus_reset(struct scsi_qla_host *, int);
441static int qla1280_device_reset(struct scsi_qla_host *, int, int);
442static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int);
443static int qla1280_abort_isp(struct scsi_qla_host *);
444#ifdef QLA_64BIT_PTR
445static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *);
446#else
447static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *);
448#endif
449static void qla1280_nv_write(struct scsi_qla_host *, uint16_t);
450static void qla1280_poll(struct scsi_qla_host *);
451static void qla1280_reset_adapter(struct scsi_qla_host *);
452static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8);
453static void qla1280_isp_cmd(struct scsi_qla_host *);
454static void qla1280_isr(struct scsi_qla_host *, struct list_head *);
455static void qla1280_rst_aen(struct scsi_qla_host *);
456static void qla1280_status_entry(struct scsi_qla_host *, struct response *,
457 struct list_head *);
458static void qla1280_error_entry(struct scsi_qla_host *, struct response *,
459 struct list_head *);
460static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t);
461static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t);
462static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *);
463static request_t *qla1280_req_pkt(struct scsi_qla_host *);
464static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *,
465 unsigned int);
466static void qla1280_get_target_parameters(struct scsi_qla_host *,
467 struct scsi_device *);
468static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int);
469
470
471static struct qla_driver_setup driver_setup;
472
473/*
474 * convert scsi data direction to request_t control flags
475 */
476static inline uint16_t
477qla1280_data_direction(struct scsi_cmnd *cmnd)
478{
479 switch(cmnd->sc_data_direction) {
480 case DMA_FROM_DEVICE:
481 return BIT_5;
482 case DMA_TO_DEVICE:
483 return BIT_6;
484 case DMA_BIDIRECTIONAL:
485 return BIT_5 | BIT_6;
486 /*
487 * We could BUG() on default here if one of the four cases aren't
488 * met, but then again if we receive something like that from the
489 * SCSI layer we have more serious problems. This shuts up GCC.
490 */
491 case DMA_NONE:
492 default:
493 return 0;
494 }
495}
496
497#if DEBUG_QLA1280
498static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd);
499static void __qla1280_dump_buffer(char *, int);
500#endif
501
502
503/*
504 * insmod needs to find the variable and make it point to something
505 */
506#ifdef MODULE
507static char *qla1280;
508
509/* insmod qla1280 options=verbose" */
510module_param(qla1280, charp, 0);
511#else
512__setup("qla1280=", qla1280_setup);
513#endif
514
515
516/*
517 * We use the scsi_pointer structure that's included with each scsi_command
518 * to overlay our struct srb over it. qla1280_init() checks that a srb is not
519 * bigger than a scsi_pointer.
520 */
521
522#define CMD_SP(Cmnd) &Cmnd->SCp
523#define CMD_CDBLEN(Cmnd) Cmnd->cmd_len
524#define CMD_CDBP(Cmnd) Cmnd->cmnd
525#define CMD_SNSP(Cmnd) Cmnd->sense_buffer
526#define CMD_SNSLEN(Cmnd) SCSI_SENSE_BUFFERSIZE
527#define CMD_RESULT(Cmnd) Cmnd->result
528#define CMD_HANDLE(Cmnd) Cmnd->host_scribble
529#define CMD_REQUEST(Cmnd) Cmnd->request->cmd
530
531#define CMD_HOST(Cmnd) Cmnd->device->host
532#define SCSI_BUS_32(Cmnd) Cmnd->device->channel
533#define SCSI_TCN_32(Cmnd) Cmnd->device->id
534#define SCSI_LUN_32(Cmnd) Cmnd->device->lun
535
536
537/*****************************************/
538/* ISP Boards supported by this driver */
539/*****************************************/
540
541struct qla_boards {
542 char *name; /* Board ID String */
543 int numPorts; /* Number of SCSI ports */
544 int fw_index; /* index into qla1280_fw_tbl for firmware */
545};
546
547/* NOTE: the last argument in each entry is used to index ql1280_board_tbl */
548static struct pci_device_id qla1280_pci_tbl[] = {
549 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160,
550 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
551 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
552 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
553 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080,
554 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
555 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240,
556 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
557 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280,
558 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
559 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160,
560 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
561 {0,}
562};
563MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl);
564
565DEFINE_MUTEX(qla1280_firmware_mutex);
566
567struct qla_fw {
568 char *fwname;
569 const struct firmware *fw;
570};
571
572#define QL_NUM_FW_IMAGES 3
573
574struct qla_fw qla1280_fw_tbl[QL_NUM_FW_IMAGES] = {
575 {"qlogic/1040.bin", NULL}, /* image 0 */
576 {"qlogic/1280.bin", NULL}, /* image 1 */
577 {"qlogic/12160.bin", NULL}, /* image 2 */
578};
579
580/* NOTE: Order of boards in this table must match order in qla1280_pci_tbl */
581static struct qla_boards ql1280_board_tbl[] = {
582 {.name = "QLA12160", .numPorts = 2, .fw_index = 2},
583 {.name = "QLA1040" , .numPorts = 1, .fw_index = 0},
584 {.name = "QLA1080" , .numPorts = 1, .fw_index = 1},
585 {.name = "QLA1240" , .numPorts = 2, .fw_index = 1},
586 {.name = "QLA1280" , .numPorts = 2, .fw_index = 1},
587 {.name = "QLA10160", .numPorts = 1, .fw_index = 2},
588 {.name = " ", .numPorts = 0, .fw_index = -1},
589};
590
591static int qla1280_verbose = 1;
592
593#if DEBUG_QLA1280
594static int ql_debug_level = 1;
595#define dprintk(level, format, a...) \
596 do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0)
597#define qla1280_dump_buffer(level, buf, size) \
598 if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size)
599#define qla1280_print_scsi_cmd(level, cmd) \
600 if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd)
601#else
602#define ql_debug_level 0
603#define dprintk(level, format, a...) do{}while(0)
604#define qla1280_dump_buffer(a, b, c) do{}while(0)
605#define qla1280_print_scsi_cmd(a, b) do{}while(0)
606#endif
607
608#define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x);
609#define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x);
610#define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x);
611#define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x);
612
613
614static int qla1280_read_nvram(struct scsi_qla_host *ha)
615{
616 uint16_t *wptr;
617 uint8_t chksum;
618 int cnt, i;
619 struct nvram *nv;
620
621 ENTER("qla1280_read_nvram");
622
623 if (driver_setup.no_nvram)
624 return 1;
625
626 printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no);
627
628 wptr = (uint16_t *)&ha->nvram;
629 nv = &ha->nvram;
630 chksum = 0;
631 for (cnt = 0; cnt < 3; cnt++) {
632 *wptr = qla1280_get_nvram_word(ha, cnt);
633 chksum += *wptr & 0xff;
634 chksum += (*wptr >> 8) & 0xff;
635 wptr++;
636 }
637
638 if (nv->id0 != 'I' || nv->id1 != 'S' ||
639 nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) {
640 dprintk(2, "Invalid nvram ID or version!\n");
641 chksum = 1;
642 } else {
643 for (; cnt < sizeof(struct nvram); cnt++) {
644 *wptr = qla1280_get_nvram_word(ha, cnt);
645 chksum += *wptr & 0xff;
646 chksum += (*wptr >> 8) & 0xff;
647 wptr++;
648 }
649 }
650
651 dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x"
652 " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3,
653 nv->version);
654
655
656 if (chksum) {
657 if (!driver_setup.no_nvram)
658 printk(KERN_WARNING "scsi(%ld): Unable to identify or "
659 "validate NVRAM checksum, using default "
660 "settings\n", ha->host_no);
661 ha->nvram_valid = 0;
662 } else
663 ha->nvram_valid = 1;
664
665 /* The firmware interface is, um, interesting, in that the
666 * actual firmware image on the chip is little endian, thus,
667 * the process of taking that image to the CPU would end up
668 * little endian. However, the firmware interface requires it
669 * to be read a word (two bytes) at a time.
670 *
671 * The net result of this would be that the word (and
672 * doubleword) quantites in the firmware would be correct, but
673 * the bytes would be pairwise reversed. Since most of the
674 * firmware quantites are, in fact, bytes, we do an extra
675 * le16_to_cpu() in the firmware read routine.
676 *
677 * The upshot of all this is that the bytes in the firmware
678 * are in the correct places, but the 16 and 32 bit quantites
679 * are still in little endian format. We fix that up below by
680 * doing extra reverses on them */
681 nv->isp_parameter = cpu_to_le16(nv->isp_parameter);
682 nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w);
683 for(i = 0; i < MAX_BUSES; i++) {
684 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout);
685 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth);
686 }
687 dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n");
688 LEAVE("qla1280_read_nvram");
689
690 return chksum;
691}
692
693/**************************************************************************
694 * qla1280_info
695 * Return a string describing the driver.
696 **************************************************************************/
697static const char *
698qla1280_info(struct Scsi_Host *host)
699{
700 static char qla1280_scsi_name_buffer[125];
701 char *bp;
702 struct scsi_qla_host *ha;
703 struct qla_boards *bdp;
704
705 bp = &qla1280_scsi_name_buffer[0];
706 ha = (struct scsi_qla_host *)host->hostdata;
707 bdp = &ql1280_board_tbl[ha->devnum];
708 memset(bp, 0, sizeof(qla1280_scsi_name_buffer));
709
710 sprintf (bp,
711 "QLogic %s PCI to SCSI Host Adapter\n"
712 " Firmware version: %2d.%02d.%02d, Driver version %s",
713 &bdp->name[0], ha->fwver1, ha->fwver2, ha->fwver3,
714 QLA1280_VERSION);
715 return bp;
716}
717
718/**************************************************************************
719 * qla1280_queuecommand
720 * Queue a command to the controller.
721 *
722 * Note:
723 * The mid-level driver tries to ensures that queuecommand never gets invoked
724 * concurrently with itself or the interrupt handler (although the
725 * interrupt handler may call this routine as part of request-completion
726 * handling). Unfortunely, it sometimes calls the scheduler in interrupt
727 * context which is a big NO! NO!.
728 **************************************************************************/
729static int
730qla1280_queuecommand_lck(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
731{
732 struct Scsi_Host *host = cmd->device->host;
733 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
734 struct srb *sp = (struct srb *)CMD_SP(cmd);
735 int status;
736
737 cmd->scsi_done = fn;
738 sp->cmd = cmd;
739 sp->flags = 0;
740 sp->wait = NULL;
741 CMD_HANDLE(cmd) = (unsigned char *)NULL;
742
743 qla1280_print_scsi_cmd(5, cmd);
744
745#ifdef QLA_64BIT_PTR
746 /*
747 * Using 64 bit commands if the PCI bridge doesn't support it is a
748 * bit wasteful, however this should really only happen if one's
749 * PCI controller is completely broken, like the BCM1250. For
750 * sane hardware this is not an issue.
751 */
752 status = qla1280_64bit_start_scsi(ha, sp);
753#else
754 status = qla1280_32bit_start_scsi(ha, sp);
755#endif
756 return status;
757}
758
759static DEF_SCSI_QCMD(qla1280_queuecommand)
760
761enum action {
762 ABORT_COMMAND,
763 DEVICE_RESET,
764 BUS_RESET,
765 ADAPTER_RESET,
766};
767
768
769static void qla1280_mailbox_timeout(unsigned long __data)
770{
771 struct scsi_qla_host *ha = (struct scsi_qla_host *)__data;
772 struct device_reg __iomem *reg;
773 reg = ha->iobase;
774
775 ha->mailbox_out[0] = RD_REG_WORD(®->mailbox0);
776 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
777 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
778 RD_REG_WORD(®->ictrl), RD_REG_WORD(®->istatus));
779 complete(ha->mailbox_wait);
780}
781
782static int
783_qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp,
784 struct completion *wait)
785{
786 int status = FAILED;
787 struct scsi_cmnd *cmd = sp->cmd;
788
789 spin_unlock_irq(ha->host->host_lock);
790 wait_for_completion_timeout(wait, 4*HZ);
791 spin_lock_irq(ha->host->host_lock);
792 sp->wait = NULL;
793 if(CMD_HANDLE(cmd) == COMPLETED_HANDLE) {
794 status = SUCCESS;
795 (*cmd->scsi_done)(cmd);
796 }
797 return status;
798}
799
800static int
801qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp)
802{
803 DECLARE_COMPLETION_ONSTACK(wait);
804
805 sp->wait = &wait;
806 return _qla1280_wait_for_single_command(ha, sp, &wait);
807}
808
809static int
810qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target)
811{
812 int cnt;
813 int status;
814 struct srb *sp;
815 struct scsi_cmnd *cmd;
816
817 status = SUCCESS;
818
819 /*
820 * Wait for all commands with the designated bus/target
821 * to be completed by the firmware
822 */
823 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
824 sp = ha->outstanding_cmds[cnt];
825 if (sp) {
826 cmd = sp->cmd;
827
828 if (bus >= 0 && SCSI_BUS_32(cmd) != bus)
829 continue;
830 if (target >= 0 && SCSI_TCN_32(cmd) != target)
831 continue;
832
833 status = qla1280_wait_for_single_command(ha, sp);
834 if (status == FAILED)
835 break;
836 }
837 }
838 return status;
839}
840
841/**************************************************************************
842 * qla1280_error_action
843 * The function will attempt to perform a specified error action and
844 * wait for the results (or time out).
845 *
846 * Input:
847 * cmd = Linux SCSI command packet of the command that cause the
848 * bus reset.
849 * action = error action to take (see action_t)
850 *
851 * Returns:
852 * SUCCESS or FAILED
853 *
854 **************************************************************************/
855static int
856qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
857{
858 struct scsi_qla_host *ha;
859 int bus, target, lun;
860 struct srb *sp;
861 int i, found;
862 int result=FAILED;
863 int wait_for_bus=-1;
864 int wait_for_target = -1;
865 DECLARE_COMPLETION_ONSTACK(wait);
866
867 ENTER("qla1280_error_action");
868
869 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
870 sp = (struct srb *)CMD_SP(cmd);
871 bus = SCSI_BUS_32(cmd);
872 target = SCSI_TCN_32(cmd);
873 lun = SCSI_LUN_32(cmd);
874
875 dprintk(4, "error_action %i, istatus 0x%04x\n", action,
876 RD_REG_WORD(&ha->iobase->istatus));
877
878 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
879 RD_REG_WORD(&ha->iobase->host_cmd),
880 RD_REG_WORD(&ha->iobase->ictrl), jiffies);
881
882 if (qla1280_verbose)
883 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
884 "Handle=0x%p, action=0x%x\n",
885 ha->host_no, cmd, CMD_HANDLE(cmd), action);
886
887 /*
888 * Check to see if we have the command in the outstanding_cmds[]
889 * array. If not then it must have completed before this error
890 * action was initiated. If the error_action isn't ABORT_COMMAND
891 * then the driver must proceed with the requested action.
892 */
893 found = -1;
894 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
895 if (sp == ha->outstanding_cmds[i]) {
896 found = i;
897 sp->wait = &wait; /* we'll wait for it to complete */
898 break;
899 }
900 }
901
902 if (found < 0) { /* driver doesn't have command */
903 result = SUCCESS;
904 if (qla1280_verbose) {
905 printk(KERN_INFO
906 "scsi(%ld:%d:%d:%d): specified command has "
907 "already completed.\n", ha->host_no, bus,
908 target, lun);
909 }
910 }
911
912 switch (action) {
913
914 case ABORT_COMMAND:
915 dprintk(1, "qla1280: RISC aborting command\n");
916 /*
917 * The abort might fail due to race when the host_lock
918 * is released to issue the abort. As such, we
919 * don't bother to check the return status.
920 */
921 if (found >= 0)
922 qla1280_abort_command(ha, sp, found);
923 break;
924
925 case DEVICE_RESET:
926 if (qla1280_verbose)
927 printk(KERN_INFO
928 "scsi(%ld:%d:%d:%d): Queueing device reset "
929 "command.\n", ha->host_no, bus, target, lun);
930 if (qla1280_device_reset(ha, bus, target) == 0) {
931 /* issued device reset, set wait conditions */
932 wait_for_bus = bus;
933 wait_for_target = target;
934 }
935 break;
936
937 case BUS_RESET:
938 if (qla1280_verbose)
939 printk(KERN_INFO "qla1280(%ld:%d): Issued bus "
940 "reset.\n", ha->host_no, bus);
941 if (qla1280_bus_reset(ha, bus) == 0) {
942 /* issued bus reset, set wait conditions */
943 wait_for_bus = bus;
944 }
945 break;
946
947 case ADAPTER_RESET:
948 default:
949 if (qla1280_verbose) {
950 printk(KERN_INFO
951 "scsi(%ld): Issued ADAPTER RESET\n",
952 ha->host_no);
953 printk(KERN_INFO "scsi(%ld): I/O processing will "
954 "continue automatically\n", ha->host_no);
955 }
956 ha->flags.reset_active = 1;
957
958 if (qla1280_abort_isp(ha) != 0) { /* it's dead */
959 result = FAILED;
960 }
961
962 ha->flags.reset_active = 0;
963 }
964
965 /*
966 * At this point, the host_lock has been released and retaken
967 * by the issuance of the mailbox command.
968 * Wait for the command passed in by the mid-layer if it
969 * was found by the driver. It might have been returned
970 * between eh recovery steps, hence the check of the "found"
971 * variable.
972 */
973
974 if (found >= 0)
975 result = _qla1280_wait_for_single_command(ha, sp, &wait);
976
977 if (action == ABORT_COMMAND && result != SUCCESS) {
978 printk(KERN_WARNING
979 "scsi(%li:%i:%i:%i): "
980 "Unable to abort command!\n",
981 ha->host_no, bus, target, lun);
982 }
983
984 /*
985 * If the command passed in by the mid-layer has been
986 * returned by the board, then wait for any additional
987 * commands which are supposed to complete based upon
988 * the error action.
989 *
990 * All commands are unconditionally returned during a
991 * call to qla1280_abort_isp(), ADAPTER_RESET. No need
992 * to wait for them.
993 */
994 if (result == SUCCESS && wait_for_bus >= 0) {
995 result = qla1280_wait_for_pending_commands(ha,
996 wait_for_bus, wait_for_target);
997 }
998
999 dprintk(1, "RESET returning %d\n", result);
1000
1001 LEAVE("qla1280_error_action");
1002 return result;
1003}
1004
1005/**************************************************************************
1006 * qla1280_abort
1007 * Abort the specified SCSI command(s).
1008 **************************************************************************/
1009static int
1010qla1280_eh_abort(struct scsi_cmnd * cmd)
1011{
1012 int rc;
1013
1014 spin_lock_irq(cmd->device->host->host_lock);
1015 rc = qla1280_error_action(cmd, ABORT_COMMAND);
1016 spin_unlock_irq(cmd->device->host->host_lock);
1017
1018 return rc;
1019}
1020
1021/**************************************************************************
1022 * qla1280_device_reset
1023 * Reset the specified SCSI device
1024 **************************************************************************/
1025static int
1026qla1280_eh_device_reset(struct scsi_cmnd *cmd)
1027{
1028 int rc;
1029
1030 spin_lock_irq(cmd->device->host->host_lock);
1031 rc = qla1280_error_action(cmd, DEVICE_RESET);
1032 spin_unlock_irq(cmd->device->host->host_lock);
1033
1034 return rc;
1035}
1036
1037/**************************************************************************
1038 * qla1280_bus_reset
1039 * Reset the specified bus.
1040 **************************************************************************/
1041static int
1042qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
1043{
1044 int rc;
1045
1046 spin_lock_irq(cmd->device->host->host_lock);
1047 rc = qla1280_error_action(cmd, BUS_RESET);
1048 spin_unlock_irq(cmd->device->host->host_lock);
1049
1050 return rc;
1051}
1052
1053/**************************************************************************
1054 * qla1280_adapter_reset
1055 * Reset the specified adapter (both channels)
1056 **************************************************************************/
1057static int
1058qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
1059{
1060 int rc;
1061
1062 spin_lock_irq(cmd->device->host->host_lock);
1063 rc = qla1280_error_action(cmd, ADAPTER_RESET);
1064 spin_unlock_irq(cmd->device->host->host_lock);
1065
1066 return rc;
1067}
1068
1069static int
1070qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1071 sector_t capacity, int geom[])
1072{
1073 int heads, sectors, cylinders;
1074
1075 heads = 64;
1076 sectors = 32;
1077 cylinders = (unsigned long)capacity / (heads * sectors);
1078 if (cylinders > 1024) {
1079 heads = 255;
1080 sectors = 63;
1081 cylinders = (unsigned long)capacity / (heads * sectors);
1082 /* if (cylinders > 1023)
1083 cylinders = 1023; */
1084 }
1085
1086 geom[0] = heads;
1087 geom[1] = sectors;
1088 geom[2] = cylinders;
1089
1090 return 0;
1091}
1092
1093
1094/* disable risc and host interrupts */
1095static inline void
1096qla1280_disable_intrs(struct scsi_qla_host *ha)
1097{
1098 WRT_REG_WORD(&ha->iobase->ictrl, 0);
1099 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1100}
1101
1102/* enable risc and host interrupts */
1103static inline void
1104qla1280_enable_intrs(struct scsi_qla_host *ha)
1105{
1106 WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC));
1107 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1108}
1109
1110/**************************************************************************
1111 * qla1280_intr_handler
1112 * Handles the H/W interrupt
1113 **************************************************************************/
1114static irqreturn_t
1115qla1280_intr_handler(int irq, void *dev_id)
1116{
1117 struct scsi_qla_host *ha;
1118 struct device_reg __iomem *reg;
1119 u16 data;
1120 int handled = 0;
1121
1122 ENTER_INTR ("qla1280_intr_handler");
1123 ha = (struct scsi_qla_host *)dev_id;
1124
1125 spin_lock(ha->host->host_lock);
1126
1127 ha->isr_count++;
1128 reg = ha->iobase;
1129
1130 qla1280_disable_intrs(ha);
1131
1132 data = qla1280_debounce_register(®->istatus);
1133 /* Check for pending interrupts. */
1134 if (data & RISC_INT) {
1135 qla1280_isr(ha, &ha->done_q);
1136 handled = 1;
1137 }
1138 if (!list_empty(&ha->done_q))
1139 qla1280_done(ha);
1140
1141 spin_unlock(ha->host->host_lock);
1142
1143 qla1280_enable_intrs(ha);
1144
1145 LEAVE_INTR("qla1280_intr_handler");
1146 return IRQ_RETVAL(handled);
1147}
1148
1149
1150static int
1151qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
1152{
1153 uint8_t mr;
1154 uint16_t mb[MAILBOX_REGISTER_COUNT];
1155 struct nvram *nv;
1156 int status, lun;
1157
1158 nv = &ha->nvram;
1159
1160 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
1161
1162 /* Set Target Parameters. */
1163 mb[0] = MBC_SET_TARGET_PARAMETERS;
1164 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1165 mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8;
1166 mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9;
1167 mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10;
1168 mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11;
1169 mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12;
1170 mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13;
1171 mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14;
1172 mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15;
1173
1174 if (IS_ISP1x160(ha)) {
1175 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
1176 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8);
1177 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
1178 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
1179 mr |= BIT_6;
1180 } else {
1181 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8);
1182 }
1183 mb[3] |= nv->bus[bus].target[target].sync_period;
1184
1185 status = qla1280_mailbox_command(ha, mr, mb);
1186
1187 /* Set Device Queue Parameters. */
1188 for (lun = 0; lun < MAX_LUNS; lun++) {
1189 mb[0] = MBC_SET_DEVICE_QUEUE;
1190 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1191 mb[1] |= lun;
1192 mb[2] = nv->bus[bus].max_queue_depth;
1193 mb[3] = nv->bus[bus].target[target].execution_throttle;
1194 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1195 }
1196
1197 if (status)
1198 printk(KERN_WARNING "scsi(%ld:%i:%i): "
1199 "qla1280_set_target_parameters() failed\n",
1200 ha->host_no, bus, target);
1201 return status;
1202}
1203
1204
1205/**************************************************************************
1206 * qla1280_slave_configure
1207 *
1208 * Description:
1209 * Determines the queue depth for a given device. There are two ways
1210 * a queue depth can be obtained for a tagged queueing device. One
1211 * way is the default queue depth which is determined by whether
1212 * If it is defined, then it is used
1213 * as the default queue depth. Otherwise, we use either 4 or 8 as the
1214 * default queue depth (dependent on the number of hardware SCBs).
1215 **************************************************************************/
1216static int
1217qla1280_slave_configure(struct scsi_device *device)
1218{
1219 struct scsi_qla_host *ha;
1220 int default_depth = 3;
1221 int bus = device->channel;
1222 int target = device->id;
1223 int status = 0;
1224 struct nvram *nv;
1225 unsigned long flags;
1226
1227 ha = (struct scsi_qla_host *)device->host->hostdata;
1228 nv = &ha->nvram;
1229
1230 if (qla1280_check_for_dead_scsi_bus(ha, bus))
1231 return 1;
1232
1233 if (device->tagged_supported &&
1234 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
1235 scsi_adjust_queue_depth(device, MSG_ORDERED_TAG,
1236 ha->bus_settings[bus].hiwat);
1237 } else {
1238 scsi_adjust_queue_depth(device, 0, default_depth);
1239 }
1240
1241 nv->bus[bus].target[target].parameter.enable_sync = device->sdtr;
1242 nv->bus[bus].target[target].parameter.enable_wide = device->wdtr;
1243 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
1244
1245 if (driver_setup.no_sync ||
1246 (driver_setup.sync_mask &&
1247 (~driver_setup.sync_mask & (1 << target))))
1248 nv->bus[bus].target[target].parameter.enable_sync = 0;
1249 if (driver_setup.no_wide ||
1250 (driver_setup.wide_mask &&
1251 (~driver_setup.wide_mask & (1 << target))))
1252 nv->bus[bus].target[target].parameter.enable_wide = 0;
1253 if (IS_ISP1x160(ha)) {
1254 if (driver_setup.no_ppr ||
1255 (driver_setup.ppr_mask &&
1256 (~driver_setup.ppr_mask & (1 << target))))
1257 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
1258 }
1259
1260 spin_lock_irqsave(ha->host->host_lock, flags);
1261 if (nv->bus[bus].target[target].parameter.enable_sync)
1262 status = qla1280_set_target_parameters(ha, bus, target);
1263 qla1280_get_target_parameters(ha, device);
1264 spin_unlock_irqrestore(ha->host->host_lock, flags);
1265 return status;
1266}
1267
1268
1269/*
1270 * qla1280_done
1271 * Process completed commands.
1272 *
1273 * Input:
1274 * ha = adapter block pointer.
1275 */
1276static void
1277qla1280_done(struct scsi_qla_host *ha)
1278{
1279 struct srb *sp;
1280 struct list_head *done_q;
1281 int bus, target, lun;
1282 struct scsi_cmnd *cmd;
1283
1284 ENTER("qla1280_done");
1285
1286 done_q = &ha->done_q;
1287
1288 while (!list_empty(done_q)) {
1289 sp = list_entry(done_q->next, struct srb, list);
1290
1291 list_del(&sp->list);
1292
1293 cmd = sp->cmd;
1294 bus = SCSI_BUS_32(cmd);
1295 target = SCSI_TCN_32(cmd);
1296 lun = SCSI_LUN_32(cmd);
1297
1298 switch ((CMD_RESULT(cmd) >> 16)) {
1299 case DID_RESET:
1300 /* Issue marker command. */
1301 if (!ha->flags.abort_isp_active)
1302 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
1303 break;
1304 case DID_ABORT:
1305 sp->flags &= ~SRB_ABORT_PENDING;
1306 sp->flags |= SRB_ABORTED;
1307 break;
1308 default:
1309 break;
1310 }
1311
1312 /* Release memory used for this I/O */
1313 scsi_dma_unmap(cmd);
1314
1315 /* Call the mid-level driver interrupt handler */
1316 ha->actthreads--;
1317
1318 if (sp->wait == NULL)
1319 (*(cmd)->scsi_done)(cmd);
1320 else
1321 complete(sp->wait);
1322 }
1323 LEAVE("qla1280_done");
1324}
1325
1326/*
1327 * Translates a ISP error to a Linux SCSI error
1328 */
1329static int
1330qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
1331{
1332 int host_status = DID_ERROR;
1333 uint16_t comp_status = le16_to_cpu(sts->comp_status);
1334 uint16_t state_flags = le16_to_cpu(sts->state_flags);
1335 uint32_t residual_length = le32_to_cpu(sts->residual_length);
1336 uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
1337#if DEBUG_QLA1280_INTR
1338 static char *reason[] = {
1339 "DID_OK",
1340 "DID_NO_CONNECT",
1341 "DID_BUS_BUSY",
1342 "DID_TIME_OUT",
1343 "DID_BAD_TARGET",
1344 "DID_ABORT",
1345 "DID_PARITY",
1346 "DID_ERROR",
1347 "DID_RESET",
1348 "DID_BAD_INTR"
1349 };
1350#endif /* DEBUG_QLA1280_INTR */
1351
1352 ENTER("qla1280_return_status");
1353
1354#if DEBUG_QLA1280_INTR
1355 /*
1356 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
1357 comp_status);
1358 */
1359#endif
1360
1361 switch (comp_status) {
1362 case CS_COMPLETE:
1363 host_status = DID_OK;
1364 break;
1365
1366 case CS_INCOMPLETE:
1367 if (!(state_flags & SF_GOT_BUS))
1368 host_status = DID_NO_CONNECT;
1369 else if (!(state_flags & SF_GOT_TARGET))
1370 host_status = DID_BAD_TARGET;
1371 else if (!(state_flags & SF_SENT_CDB))
1372 host_status = DID_ERROR;
1373 else if (!(state_flags & SF_TRANSFERRED_DATA))
1374 host_status = DID_ERROR;
1375 else if (!(state_flags & SF_GOT_STATUS))
1376 host_status = DID_ERROR;
1377 else if (!(state_flags & SF_GOT_SENSE))
1378 host_status = DID_ERROR;
1379 break;
1380
1381 case CS_RESET:
1382 host_status = DID_RESET;
1383 break;
1384
1385 case CS_ABORTED:
1386 host_status = DID_ABORT;
1387 break;
1388
1389 case CS_TIMEOUT:
1390 host_status = DID_TIME_OUT;
1391 break;
1392
1393 case CS_DATA_OVERRUN:
1394 dprintk(2, "Data overrun 0x%x\n", residual_length);
1395 dprintk(2, "qla1280_return_status: response packet data\n");
1396 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
1397 host_status = DID_ERROR;
1398 break;
1399
1400 case CS_DATA_UNDERRUN:
1401 if ((scsi_bufflen(cp) - residual_length) <
1402 cp->underflow) {
1403 printk(KERN_WARNING
1404 "scsi: Underflow detected - retrying "
1405 "command.\n");
1406 host_status = DID_ERROR;
1407 } else {
1408 scsi_set_resid(cp, residual_length);
1409 host_status = DID_OK;
1410 }
1411 break;
1412
1413 default:
1414 host_status = DID_ERROR;
1415 break;
1416 }
1417
1418#if DEBUG_QLA1280_INTR
1419 dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
1420 reason[host_status], scsi_status);
1421#endif
1422
1423 LEAVE("qla1280_return_status");
1424
1425 return (scsi_status & 0xff) | (host_status << 16);
1426}
1427
1428/****************************************************************************/
1429/* QLogic ISP1280 Hardware Support Functions. */
1430/****************************************************************************/
1431
1432/*
1433 * qla1280_initialize_adapter
1434 * Initialize board.
1435 *
1436 * Input:
1437 * ha = adapter block pointer.
1438 *
1439 * Returns:
1440 * 0 = success
1441 */
1442static int __devinit
1443qla1280_initialize_adapter(struct scsi_qla_host *ha)
1444{
1445 struct device_reg __iomem *reg;
1446 int status;
1447 int bus;
1448 unsigned long flags;
1449
1450 ENTER("qla1280_initialize_adapter");
1451
1452 /* Clear adapter flags. */
1453 ha->flags.online = 0;
1454 ha->flags.disable_host_adapter = 0;
1455 ha->flags.reset_active = 0;
1456 ha->flags.abort_isp_active = 0;
1457
1458#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1459 if (ia64_platform_is("sn2")) {
1460 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
1461 "dual channel lockup workaround\n", ha->host_no);
1462 ha->flags.use_pci_vchannel = 1;
1463 driver_setup.no_nvram = 1;
1464 }
1465#endif
1466
1467 /* TODO: implement support for the 1040 nvram format */
1468 if (IS_ISP1040(ha))
1469 driver_setup.no_nvram = 1;
1470
1471 dprintk(1, "Configure PCI space for adapter...\n");
1472
1473 reg = ha->iobase;
1474
1475 /* Insure mailbox registers are free. */
1476 WRT_REG_WORD(®->semaphore, 0);
1477 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
1478 WRT_REG_WORD(®->host_cmd, HC_CLR_HOST_INT);
1479 RD_REG_WORD(®->host_cmd);
1480
1481 if (qla1280_read_nvram(ha)) {
1482 dprintk(2, "qla1280_initialize_adapter: failed to read "
1483 "NVRAM\n");
1484 }
1485
1486 /*
1487 * It's necessary to grab the spin here as qla1280_mailbox_command
1488 * needs to be able to drop the lock unconditionally to wait
1489 * for completion.
1490 */
1491 spin_lock_irqsave(ha->host->host_lock, flags);
1492
1493 status = qla1280_load_firmware(ha);
1494 if (status) {
1495 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
1496 ha->host_no);
1497 goto out;
1498 }
1499
1500 /* Setup adapter based on NVRAM parameters. */
1501 dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
1502 qla1280_nvram_config(ha);
1503
1504 if (ha->flags.disable_host_adapter) {
1505 status = 1;
1506 goto out;
1507 }
1508
1509 status = qla1280_init_rings(ha);
1510 if (status)
1511 goto out;
1512
1513 /* Issue SCSI reset, if we can't reset twice then bus is dead */
1514 for (bus = 0; bus < ha->ports; bus++) {
1515 if (!ha->bus_settings[bus].disable_scsi_reset &&
1516 qla1280_bus_reset(ha, bus) &&
1517 qla1280_bus_reset(ha, bus))
1518 ha->bus_settings[bus].scsi_bus_dead = 1;
1519 }
1520
1521 ha->flags.online = 1;
1522 out:
1523 spin_unlock_irqrestore(ha->host->host_lock, flags);
1524
1525 if (status)
1526 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
1527
1528 LEAVE("qla1280_initialize_adapter");
1529 return status;
1530}
1531
1532/*
1533 * qla1280_request_firmware
1534 * Acquire firmware for chip. Retain in memory
1535 * for error recovery.
1536 *
1537 * Input:
1538 * ha = adapter block pointer.
1539 *
1540 * Returns:
1541 * Pointer to firmware image or an error code
1542 * cast to pointer via ERR_PTR().
1543 */
1544static const struct firmware *
1545qla1280_request_firmware(struct scsi_qla_host *ha)
1546{
1547 const struct firmware *fw;
1548 int err;
1549 int index;
1550 char *fwname;
1551
1552 spin_unlock_irq(ha->host->host_lock);
1553 mutex_lock(&qla1280_firmware_mutex);
1554
1555 index = ql1280_board_tbl[ha->devnum].fw_index;
1556 fw = qla1280_fw_tbl[index].fw;
1557 if (fw)
1558 goto out;
1559
1560 fwname = qla1280_fw_tbl[index].fwname;
1561 err = request_firmware(&fw, fwname, &ha->pdev->dev);
1562
1563 if (err) {
1564 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
1565 fwname, err);
1566 fw = ERR_PTR(err);
1567 goto unlock;
1568 }
1569 if ((fw->size % 2) || (fw->size < 6)) {
1570 printk(KERN_ERR "Invalid firmware length %zu in image \"%s\"\n",
1571 fw->size, fwname);
1572 release_firmware(fw);
1573 fw = ERR_PTR(-EINVAL);
1574 goto unlock;
1575 }
1576
1577 qla1280_fw_tbl[index].fw = fw;
1578
1579 out:
1580 ha->fwver1 = fw->data[0];
1581 ha->fwver2 = fw->data[1];
1582 ha->fwver3 = fw->data[2];
1583 unlock:
1584 mutex_unlock(&qla1280_firmware_mutex);
1585 spin_lock_irq(ha->host->host_lock);
1586 return fw;
1587}
1588
1589/*
1590 * Chip diagnostics
1591 * Test chip for proper operation.
1592 *
1593 * Input:
1594 * ha = adapter block pointer.
1595 *
1596 * Returns:
1597 * 0 = success.
1598 */
1599static int
1600qla1280_chip_diag(struct scsi_qla_host *ha)
1601{
1602 uint16_t mb[MAILBOX_REGISTER_COUNT];
1603 struct device_reg __iomem *reg = ha->iobase;
1604 int status = 0;
1605 int cnt;
1606 uint16_t data;
1607 dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", ®->id_l);
1608
1609 dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
1610
1611 /* Soft reset chip and wait for it to finish. */
1612 WRT_REG_WORD(®->ictrl, ISP_RESET);
1613
1614 /*
1615 * We can't do a traditional PCI write flush here by reading
1616 * back the register. The card will not respond once the reset
1617 * is in action and we end up with a machine check exception
1618 * instead. Nothing to do but wait and hope for the best.
1619 * A portable pci_write_flush(pdev) call would be very useful here.
1620 */
1621 udelay(20);
1622 data = qla1280_debounce_register(®->ictrl);
1623 /*
1624 * Yet another QLogic gem ;-(
1625 */
1626 for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
1627 udelay(5);
1628 data = RD_REG_WORD(®->ictrl);
1629 }
1630
1631 if (!cnt)
1632 goto fail;
1633
1634 /* Reset register cleared by chip reset. */
1635 dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
1636
1637 WRT_REG_WORD(®->cfg_1, 0);
1638
1639 /* Reset RISC and disable BIOS which
1640 allows RISC to execute out of RAM. */
1641 WRT_REG_WORD(®->host_cmd, HC_RESET_RISC |
1642 HC_RELEASE_RISC | HC_DISABLE_BIOS);
1643
1644 RD_REG_WORD(®->id_l); /* Flush PCI write */
1645 data = qla1280_debounce_register(®->mailbox0);
1646
1647 /*
1648 * I *LOVE* this code!
1649 */
1650 for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
1651 udelay(5);
1652 data = RD_REG_WORD(®->mailbox0);
1653 }
1654
1655 if (!cnt)
1656 goto fail;
1657
1658 /* Check product ID of chip */
1659 dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
1660
1661 if (RD_REG_WORD(®->mailbox1) != PROD_ID_1 ||
1662 (RD_REG_WORD(®->mailbox2) != PROD_ID_2 &&
1663 RD_REG_WORD(®->mailbox2) != PROD_ID_2a) ||
1664 RD_REG_WORD(®->mailbox3) != PROD_ID_3 ||
1665 RD_REG_WORD(®->mailbox4) != PROD_ID_4) {
1666 printk(KERN_INFO "qla1280: Wrong product ID = "
1667 "0x%x,0x%x,0x%x,0x%x\n",
1668 RD_REG_WORD(®->mailbox1),
1669 RD_REG_WORD(®->mailbox2),
1670 RD_REG_WORD(®->mailbox3),
1671 RD_REG_WORD(®->mailbox4));
1672 goto fail;
1673 }
1674
1675 /*
1676 * Enable ints early!!!
1677 */
1678 qla1280_enable_intrs(ha);
1679
1680 dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
1681 /* Wrap Incoming Mailboxes Test. */
1682 mb[0] = MBC_MAILBOX_REGISTER_TEST;
1683 mb[1] = 0xAAAA;
1684 mb[2] = 0x5555;
1685 mb[3] = 0xAA55;
1686 mb[4] = 0x55AA;
1687 mb[5] = 0xA5A5;
1688 mb[6] = 0x5A5A;
1689 mb[7] = 0x2525;
1690
1691 status = qla1280_mailbox_command(ha, 0xff, mb);
1692 if (status)
1693 goto fail;
1694
1695 if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
1696 mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
1697 mb[7] != 0x2525) {
1698 printk(KERN_INFO "qla1280: Failed mbox check\n");
1699 goto fail;
1700 }
1701
1702 dprintk(3, "qla1280_chip_diag: exiting normally\n");
1703 return 0;
1704 fail:
1705 dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
1706 return status;
1707}
1708
1709static int
1710qla1280_load_firmware_pio(struct scsi_qla_host *ha)
1711{
1712 /* enter with host_lock acquired */
1713
1714 const struct firmware *fw;
1715 const __le16 *fw_data;
1716 uint16_t risc_address, risc_code_size;
1717 uint16_t mb[MAILBOX_REGISTER_COUNT], i;
1718 int err = 0;
1719
1720 fw = qla1280_request_firmware(ha);
1721 if (IS_ERR(fw))
1722 return PTR_ERR(fw);
1723
1724 fw_data = (const __le16 *)&fw->data[0];
1725 ha->fwstart = __le16_to_cpu(fw_data[2]);
1726
1727 /* Load RISC code. */
1728 risc_address = ha->fwstart;
1729 fw_data = (const __le16 *)&fw->data[6];
1730 risc_code_size = (fw->size - 6) / 2;
1731
1732 for (i = 0; i < risc_code_size; i++) {
1733 mb[0] = MBC_WRITE_RAM_WORD;
1734 mb[1] = risc_address + i;
1735 mb[2] = __le16_to_cpu(fw_data[i]);
1736
1737 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
1738 if (err) {
1739 printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
1740 ha->host_no);
1741 break;
1742 }
1743 }
1744
1745 return err;
1746}
1747
1748#define DUMP_IT_BACK 0 /* for debug of RISC loading */
1749static int
1750qla1280_load_firmware_dma(struct scsi_qla_host *ha)
1751{
1752 /* enter with host_lock acquired */
1753 const struct firmware *fw;
1754 const __le16 *fw_data;
1755 uint16_t risc_address, risc_code_size;
1756 uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
1757 int err = 0, num, i;
1758#if DUMP_IT_BACK
1759 uint8_t *sp, *tbuf;
1760 dma_addr_t p_tbuf;
1761
1762 tbuf = pci_alloc_consistent(ha->pdev, 8000, &p_tbuf);
1763 if (!tbuf)
1764 return -ENOMEM;
1765#endif
1766
1767 fw = qla1280_request_firmware(ha);
1768 if (IS_ERR(fw))
1769 return PTR_ERR(fw);
1770
1771 fw_data = (const __le16 *)&fw->data[0];
1772 ha->fwstart = __le16_to_cpu(fw_data[2]);
1773
1774 /* Load RISC code. */
1775 risc_address = ha->fwstart;
1776 fw_data = (const __le16 *)&fw->data[6];
1777 risc_code_size = (fw->size - 6) / 2;
1778
1779 dprintk(1, "%s: DMA RISC code (%i) words\n",
1780 __func__, risc_code_size);
1781
1782 num = 0;
1783 while (risc_code_size > 0) {
1784 int warn __attribute__((unused)) = 0;
1785
1786 cnt = 2000 >> 1;
1787
1788 if (cnt > risc_code_size)
1789 cnt = risc_code_size;
1790
1791 dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p),"
1792 "%d,%d(0x%x)\n",
1793 fw_data, cnt, num, risc_address);
1794 for(i = 0; i < cnt; i++)
1795 ((__le16 *)ha->request_ring)[i] = fw_data[i];
1796
1797 mb[0] = MBC_LOAD_RAM;
1798 mb[1] = risc_address;
1799 mb[4] = cnt;
1800 mb[3] = ha->request_dma & 0xffff;
1801 mb[2] = (ha->request_dma >> 16) & 0xffff;
1802 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
1803 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
1804 dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
1805 __func__, mb[0],
1806 (void *)(long)ha->request_dma,
1807 mb[6], mb[7], mb[2], mb[3]);
1808 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1809 BIT_1 | BIT_0, mb);
1810 if (err) {
1811 printk(KERN_ERR "scsi(%li): Failed to load partial "
1812 "segment of f\n", ha->host_no);
1813 goto out;
1814 }
1815
1816#if DUMP_IT_BACK
1817 mb[0] = MBC_DUMP_RAM;
1818 mb[1] = risc_address;
1819 mb[4] = cnt;
1820 mb[3] = p_tbuf & 0xffff;
1821 mb[2] = (p_tbuf >> 16) & 0xffff;
1822 mb[7] = pci_dma_hi32(p_tbuf) & 0xffff;
1823 mb[6] = pci_dma_hi32(p_tbuf) >> 16;
1824
1825 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1826 BIT_1 | BIT_0, mb);
1827 if (err) {
1828 printk(KERN_ERR
1829 "Failed to dump partial segment of f/w\n");
1830 goto out;
1831 }
1832 sp = (uint8_t *)ha->request_ring;
1833 for (i = 0; i < (cnt << 1); i++) {
1834 if (tbuf[i] != sp[i] && warn++ < 10) {
1835 printk(KERN_ERR "%s: FW compare error @ "
1836 "byte(0x%x) loop#=%x\n",
1837 __func__, i, num);
1838 printk(KERN_ERR "%s: FWbyte=%x "
1839 "FWfromChip=%x\n",
1840 __func__, sp[i], tbuf[i]);
1841 /*break; */
1842 }
1843 }
1844#endif
1845 risc_address += cnt;
1846 risc_code_size = risc_code_size - cnt;
1847 fw_data = fw_data + cnt;
1848 num++;
1849 }
1850
1851 out:
1852#if DUMP_IT_BACK
1853 pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf);
1854#endif
1855 return err;
1856}
1857
1858static int
1859qla1280_start_firmware(struct scsi_qla_host *ha)
1860{
1861 uint16_t mb[MAILBOX_REGISTER_COUNT];
1862 int err;
1863
1864 dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
1865 __func__);
1866
1867 /* Verify checksum of loaded RISC code. */
1868 mb[0] = MBC_VERIFY_CHECKSUM;
1869 /* mb[1] = ql12_risc_code_addr01; */
1870 mb[1] = ha->fwstart;
1871 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1872 if (err) {
1873 printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no);
1874 return err;
1875 }
1876
1877 /* Start firmware execution. */
1878 dprintk(1, "%s: start firmware running.\n", __func__);
1879 mb[0] = MBC_EXECUTE_FIRMWARE;
1880 mb[1] = ha->fwstart;
1881 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
1882 if (err) {
1883 printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
1884 ha->host_no);
1885 }
1886
1887 return err;
1888}
1889
1890static int
1891qla1280_load_firmware(struct scsi_qla_host *ha)
1892{
1893 /* enter with host_lock taken */
1894 int err;
1895
1896 err = qla1280_chip_diag(ha);
1897 if (err)
1898 goto out;
1899 if (IS_ISP1040(ha))
1900 err = qla1280_load_firmware_pio(ha);
1901 else
1902 err = qla1280_load_firmware_dma(ha);
1903 if (err)
1904 goto out;
1905 err = qla1280_start_firmware(ha);
1906 out:
1907 return err;
1908}
1909
1910/*
1911 * Initialize rings
1912 *
1913 * Input:
1914 * ha = adapter block pointer.
1915 * ha->request_ring = request ring virtual address
1916 * ha->response_ring = response ring virtual address
1917 * ha->request_dma = request ring physical address
1918 * ha->response_dma = response ring physical address
1919 *
1920 * Returns:
1921 * 0 = success.
1922 */
1923static int
1924qla1280_init_rings(struct scsi_qla_host *ha)
1925{
1926 uint16_t mb[MAILBOX_REGISTER_COUNT];
1927 int status = 0;
1928
1929 ENTER("qla1280_init_rings");
1930
1931 /* Clear outstanding commands array. */
1932 memset(ha->outstanding_cmds, 0,
1933 sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
1934
1935 /* Initialize request queue. */
1936 ha->request_ring_ptr = ha->request_ring;
1937 ha->req_ring_index = 0;
1938 ha->req_q_cnt = REQUEST_ENTRY_CNT;
1939 /* mb[0] = MBC_INIT_REQUEST_QUEUE; */
1940 mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
1941 mb[1] = REQUEST_ENTRY_CNT;
1942 mb[3] = ha->request_dma & 0xffff;
1943 mb[2] = (ha->request_dma >> 16) & 0xffff;
1944 mb[4] = 0;
1945 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
1946 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
1947 if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
1948 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1949 &mb[0]))) {
1950 /* Initialize response queue. */
1951 ha->response_ring_ptr = ha->response_ring;
1952 ha->rsp_ring_index = 0;
1953 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
1954 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
1955 mb[1] = RESPONSE_ENTRY_CNT;
1956 mb[3] = ha->response_dma & 0xffff;
1957 mb[2] = (ha->response_dma >> 16) & 0xffff;
1958 mb[5] = 0;
1959 mb[7] = pci_dma_hi32(ha->response_dma) & 0xffff;
1960 mb[6] = pci_dma_hi32(ha->response_dma) >> 16;
1961 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
1962 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1963 &mb[0]);
1964 }
1965
1966 if (status)
1967 dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
1968
1969 LEAVE("qla1280_init_rings");
1970 return status;
1971}
1972
1973static void
1974qla1280_print_settings(struct nvram *nv)
1975{
1976 dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
1977 nv->bus[0].config_1.initiator_id);
1978 dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
1979 nv->bus[1].config_1.initiator_id);
1980
1981 dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
1982 nv->bus[0].bus_reset_delay);
1983 dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
1984 nv->bus[1].bus_reset_delay);
1985
1986 dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
1987 dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
1988 dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
1989 dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
1990
1991 dprintk(1, "qla1280 : async data setup time[0]=%d\n",
1992 nv->bus[0].config_2.async_data_setup_time);
1993 dprintk(1, "qla1280 : async data setup time[1]=%d\n",
1994 nv->bus[1].config_2.async_data_setup_time);
1995
1996 dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
1997 nv->bus[0].config_2.req_ack_active_negation);
1998 dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
1999 nv->bus[1].config_2.req_ack_active_negation);
2000
2001 dprintk(1, "qla1280 : data line active negation[0]=%d\n",
2002 nv->bus[0].config_2.data_line_active_negation);
2003 dprintk(1, "qla1280 : data line active negation[1]=%d\n",
2004 nv->bus[1].config_2.data_line_active_negation);
2005
2006 dprintk(1, "qla1280 : disable loading risc code=%d\n",
2007 nv->cntr_flags_1.disable_loading_risc_code);
2008
2009 dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
2010 nv->cntr_flags_1.enable_64bit_addressing);
2011
2012 dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
2013 nv->bus[0].selection_timeout);
2014 dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
2015 nv->bus[1].selection_timeout);
2016
2017 dprintk(1, "qla1280 : max queue depth[0]=%d\n",
2018 nv->bus[0].max_queue_depth);
2019 dprintk(1, "qla1280 : max queue depth[1]=%d\n",
2020 nv->bus[1].max_queue_depth);
2021}
2022
2023static void
2024qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
2025{
2026 struct nvram *nv = &ha->nvram;
2027
2028 nv->bus[bus].target[target].parameter.renegotiate_on_error = 1;
2029 nv->bus[bus].target[target].parameter.auto_request_sense = 1;
2030 nv->bus[bus].target[target].parameter.tag_queuing = 1;
2031 nv->bus[bus].target[target].parameter.enable_sync = 1;
2032#if 1 /* Some SCSI Processors do not seem to like this */
2033 nv->bus[bus].target[target].parameter.enable_wide = 1;
2034#endif
2035 nv->bus[bus].target[target].execution_throttle =
2036 nv->bus[bus].max_queue_depth - 1;
2037 nv->bus[bus].target[target].parameter.parity_checking = 1;
2038 nv->bus[bus].target[target].parameter.disconnect_allowed = 1;
2039
2040 if (IS_ISP1x160(ha)) {
2041 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
2042 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
2043 nv->bus[bus].target[target].sync_period = 9;
2044 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
2045 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
2046 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
2047 } else {
2048 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
2049 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
2050 nv->bus[bus].target[target].sync_period = 10;
2051 }
2052}
2053
2054static void
2055qla1280_set_defaults(struct scsi_qla_host *ha)
2056{
2057 struct nvram *nv = &ha->nvram;
2058 int bus, target;
2059
2060 dprintk(1, "Using defaults for NVRAM: \n");
2061 memset(nv, 0, sizeof(struct nvram));
2062
2063 /* nv->cntr_flags_1.disable_loading_risc_code = 1; */
2064 nv->firmware_feature.f.enable_fast_posting = 1;
2065 nv->firmware_feature.f.disable_synchronous_backoff = 1;
2066 nv->termination.scsi_bus_0_control = 3;
2067 nv->termination.scsi_bus_1_control = 3;
2068 nv->termination.auto_term_support = 1;
2069
2070 /*
2071 * Set default FIFO magic - What appropriate values would be here
2072 * is unknown. This is what I have found testing with 12160s.
2073 *
2074 * Now, I would love the magic decoder ring for this one, the
2075 * header file provided by QLogic seems to be bogus or incomplete
2076 * at best.
2077 */
2078 nv->isp_config.burst_enable = 1;
2079 if (IS_ISP1040(ha))
2080 nv->isp_config.fifo_threshold |= 3;
2081 else
2082 nv->isp_config.fifo_threshold |= 4;
2083
2084 if (IS_ISP1x160(ha))
2085 nv->isp_parameter = 0x01; /* fast memory enable */
2086
2087 for (bus = 0; bus < MAX_BUSES; bus++) {
2088 nv->bus[bus].config_1.initiator_id = 7;
2089 nv->bus[bus].config_2.req_ack_active_negation = 1;
2090 nv->bus[bus].config_2.data_line_active_negation = 1;
2091 nv->bus[bus].selection_timeout = 250;
2092 nv->bus[bus].max_queue_depth = 32;
2093
2094 if (IS_ISP1040(ha)) {
2095 nv->bus[bus].bus_reset_delay = 3;
2096 nv->bus[bus].config_2.async_data_setup_time = 6;
2097 nv->bus[bus].retry_delay = 1;
2098 } else {
2099 nv->bus[bus].bus_reset_delay = 5;
2100 nv->bus[bus].config_2.async_data_setup_time = 8;
2101 }
2102
2103 for (target = 0; target < MAX_TARGETS; target++)
2104 qla1280_set_target_defaults(ha, bus, target);
2105 }
2106}
2107
2108static int
2109qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
2110{
2111 struct nvram *nv = &ha->nvram;
2112 uint16_t mb[MAILBOX_REGISTER_COUNT];
2113 int status, lun;
2114 uint16_t flag;
2115
2116 /* Set Target Parameters. */
2117 mb[0] = MBC_SET_TARGET_PARAMETERS;
2118 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2119
2120 /*
2121 * Do not enable sync and ppr for the initial INQUIRY run. We
2122 * enable this later if we determine the target actually
2123 * supports it.
2124 */
2125 mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE
2126 | TP_WIDE | TP_PARITY | TP_DISCONNECT);
2127
2128 if (IS_ISP1x160(ha))
2129 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
2130 else
2131 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
2132 mb[3] |= nv->bus[bus].target[target].sync_period;
2133 status = qla1280_mailbox_command(ha, 0x0f, mb);
2134
2135 /* Save Tag queuing enable flag. */
2136 flag = (BIT_0 << target);
2137 if (nv->bus[bus].target[target].parameter.tag_queuing)
2138 ha->bus_settings[bus].qtag_enables |= flag;
2139
2140 /* Save Device enable flag. */
2141 if (IS_ISP1x160(ha)) {
2142 if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
2143 ha->bus_settings[bus].device_enables |= flag;
2144 ha->bus_settings[bus].lun_disables |= 0;
2145 } else {
2146 if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
2147 ha->bus_settings[bus].device_enables |= flag;
2148 /* Save LUN disable flag. */
2149 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
2150 ha->bus_settings[bus].lun_disables |= flag;
2151 }
2152
2153 /* Set Device Queue Parameters. */
2154 for (lun = 0; lun < MAX_LUNS; lun++) {
2155 mb[0] = MBC_SET_DEVICE_QUEUE;
2156 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2157 mb[1] |= lun;
2158 mb[2] = nv->bus[bus].max_queue_depth;
2159 mb[3] = nv->bus[bus].target[target].execution_throttle;
2160 status |= qla1280_mailbox_command(ha, 0x0f, mb);
2161 }
2162
2163 return status;
2164}
2165
2166static int
2167qla1280_config_bus(struct scsi_qla_host *ha, int bus)
2168{
2169 struct nvram *nv = &ha->nvram;
2170 uint16_t mb[MAILBOX_REGISTER_COUNT];
2171 int target, status;
2172
2173 /* SCSI Reset Disable. */
2174 ha->bus_settings[bus].disable_scsi_reset =
2175 nv->bus[bus].config_1.scsi_reset_disable;
2176
2177 /* Initiator ID. */
2178 ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
2179 mb[0] = MBC_SET_INITIATOR_ID;
2180 mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
2181 ha->bus_settings[bus].id;
2182 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2183
2184 /* Reset Delay. */
2185 ha->bus_settings[bus].bus_reset_delay =
2186 nv->bus[bus].bus_reset_delay;
2187
2188 /* Command queue depth per device. */
2189 ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
2190
2191 /* Set target parameters. */
2192 for (target = 0; target < MAX_TARGETS; target++)
2193 status |= qla1280_config_target(ha, bus, target);
2194
2195 return status;
2196}
2197
2198static int
2199qla1280_nvram_config(struct scsi_qla_host *ha)
2200{
2201 struct device_reg __iomem *reg = ha->iobase;
2202 struct nvram *nv = &ha->nvram;
2203 int bus, target, status = 0;
2204 uint16_t mb[MAILBOX_REGISTER_COUNT];
2205
2206 ENTER("qla1280_nvram_config");
2207
2208 if (ha->nvram_valid) {
2209 /* Always force AUTO sense for LINUX SCSI */
2210 for (bus = 0; bus < MAX_BUSES; bus++)
2211 for (target = 0; target < MAX_TARGETS; target++) {
2212 nv->bus[bus].target[target].parameter.
2213 auto_request_sense = 1;
2214 }
2215 } else {
2216 qla1280_set_defaults(ha);
2217 }
2218
2219 qla1280_print_settings(nv);
2220
2221 /* Disable RISC load of firmware. */
2222 ha->flags.disable_risc_code_load =
2223 nv->cntr_flags_1.disable_loading_risc_code;
2224
2225 if (IS_ISP1040(ha)) {
2226 uint16_t hwrev, cfg1, cdma_conf, ddma_conf;
2227
2228 hwrev = RD_REG_WORD(®->cfg_0) & ISP_CFG0_HWMSK;
2229
2230 cfg1 = RD_REG_WORD(®->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6);
2231 cdma_conf = RD_REG_WORD(®->cdma_cfg);
2232 ddma_conf = RD_REG_WORD(®->ddma_cfg);
2233
2234 /* Busted fifo, says mjacob. */
2235 if (hwrev != ISP_CFG0_1040A)
2236 cfg1 |= nv->isp_config.fifo_threshold << 4;
2237
2238 cfg1 |= nv->isp_config.burst_enable << 2;
2239 WRT_REG_WORD(®->cfg_1, cfg1);
2240
2241 WRT_REG_WORD(®->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
2242 WRT_REG_WORD(®->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
2243 } else {
2244 uint16_t cfg1, term;
2245
2246 /* Set ISP hardware DMA burst */
2247 cfg1 = nv->isp_config.fifo_threshold << 4;
2248 cfg1 |= nv->isp_config.burst_enable << 2;
2249 /* Enable DMA arbitration on dual channel controllers */
2250 if (ha->ports > 1)
2251 cfg1 |= BIT_13;
2252 WRT_REG_WORD(®->cfg_1, cfg1);
2253
2254 /* Set SCSI termination. */
2255 WRT_REG_WORD(®->gpio_enable,
2256 BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0);
2257 term = nv->termination.scsi_bus_1_control;
2258 term |= nv->termination.scsi_bus_0_control << 2;
2259 term |= nv->termination.auto_term_support << 7;
2260 RD_REG_WORD(®->id_l); /* Flush PCI write */
2261 WRT_REG_WORD(®->gpio_data, term);
2262 }
2263 RD_REG_WORD(®->id_l); /* Flush PCI write */
2264
2265 /* ISP parameter word. */
2266 mb[0] = MBC_SET_SYSTEM_PARAMETER;
2267 mb[1] = nv->isp_parameter;
2268 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2269
2270 if (IS_ISP1x40(ha)) {
2271 /* clock rate - for qla1240 and older, only */
2272 mb[0] = MBC_SET_CLOCK_RATE;
2273 mb[1] = 40;
2274 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2275 }
2276
2277 /* Firmware feature word. */
2278 mb[0] = MBC_SET_FIRMWARE_FEATURES;
2279 mb[1] = nv->firmware_feature.f.enable_fast_posting;
2280 mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1;
2281 mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5;
2282#if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2)
2283 if (ia64_platform_is("sn2")) {
2284 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
2285 "workaround\n", ha->host_no);
2286 mb[1] |= nv->firmware_feature.f.unused_9 << 9; /* XXX */
2287 }
2288#endif
2289 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2290
2291 /* Retry count and delay. */
2292 mb[0] = MBC_SET_RETRY_COUNT;
2293 mb[1] = nv->bus[0].retry_count;
2294 mb[2] = nv->bus[0].retry_delay;
2295 mb[6] = nv->bus[1].retry_count;
2296 mb[7] = nv->bus[1].retry_delay;
2297 status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
2298 BIT_1 | BIT_0, &mb[0]);
2299
2300 /* ASYNC data setup time. */
2301 mb[0] = MBC_SET_ASYNC_DATA_SETUP;
2302 mb[1] = nv->bus[0].config_2.async_data_setup_time;
2303 mb[2] = nv->bus[1].config_2.async_data_setup_time;
2304 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2305
2306 /* Active negation states. */
2307 mb[0] = MBC_SET_ACTIVE_NEGATION;
2308 mb[1] = 0;
2309 if (nv->bus[0].config_2.req_ack_active_negation)
2310 mb[1] |= BIT_5;
2311 if (nv->bus[0].config_2.data_line_active_negation)
2312 mb[1] |= BIT_4;
2313 mb[2] = 0;
2314 if (nv->bus[1].config_2.req_ack_active_negation)
2315 mb[2] |= BIT_5;
2316 if (nv->bus[1].config_2.data_line_active_negation)
2317 mb[2] |= BIT_4;
2318 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2319
2320 mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
2321 mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */
2322 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2323
2324 /* thingy */
2325 mb[0] = MBC_SET_PCI_CONTROL;
2326 mb[1] = BIT_1; /* Data DMA Channel Burst Enable */
2327 mb[2] = BIT_1; /* Command DMA Channel Burst Enable */
2328 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2329
2330 mb[0] = MBC_SET_TAG_AGE_LIMIT;
2331 mb[1] = 8;
2332 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2333
2334 /* Selection timeout. */
2335 mb[0] = MBC_SET_SELECTION_TIMEOUT;
2336 mb[1] = nv->bus[0].selection_timeout;
2337 mb[2] = nv->bus[1].selection_timeout;
2338 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2339
2340 for (bus = 0; bus < ha->ports; bus++)
2341 status |= qla1280_config_bus(ha, bus);
2342
2343 if (status)
2344 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
2345
2346 LEAVE("qla1280_nvram_config");
2347 return status;
2348}
2349
2350/*
2351 * Get NVRAM data word
2352 * Calculates word position in NVRAM and calls request routine to
2353 * get the word from NVRAM.
2354 *
2355 * Input:
2356 * ha = adapter block pointer.
2357 * address = NVRAM word address.
2358 *
2359 * Returns:
2360 * data word.
2361 */
2362static uint16_t
2363qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
2364{
2365 uint32_t nv_cmd;
2366 uint16_t data;
2367
2368 nv_cmd = address << 16;
2369 nv_cmd |= NV_READ_OP;
2370
2371 data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
2372
2373 dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
2374 "0x%x", data);
2375
2376 return data;
2377}
2378
2379/*
2380 * NVRAM request
2381 * Sends read command to NVRAM and gets data from NVRAM.
2382 *
2383 * Input:
2384 * ha = adapter block pointer.
2385 * nv_cmd = Bit 26 = start bit
2386 * Bit 25, 24 = opcode
2387 * Bit 23-16 = address
2388 * Bit 15-0 = write data
2389 *
2390 * Returns:
2391 * data word.
2392 */
2393static uint16_t
2394qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
2395{
2396 struct device_reg __iomem *reg = ha->iobase;
2397 int cnt;
2398 uint16_t data = 0;
2399 uint16_t reg_data;
2400
2401 /* Send command to NVRAM. */
2402
2403 nv_cmd <<= 5;
2404 for (cnt = 0; cnt < 11; cnt++) {
2405 if (nv_cmd & BIT_31)
2406 qla1280_nv_write(ha, NV_DATA_OUT);
2407 else
2408 qla1280_nv_write(ha, 0);
2409 nv_cmd <<= 1;
2410 }
2411
2412 /* Read data from NVRAM. */
2413
2414 for (cnt = 0; cnt < 16; cnt++) {
2415 WRT_REG_WORD(®->nvram, (NV_SELECT | NV_CLOCK));
2416 RD_REG_WORD(®->id_l); /* Flush PCI write */
2417 NVRAM_DELAY();
2418 data <<= 1;
2419 reg_data = RD_REG_WORD(®->nvram);
2420 if (reg_data & NV_DATA_IN)
2421 data |= BIT_0;
2422 WRT_REG_WORD(®->nvram, NV_SELECT);
2423 RD_REG_WORD(®->id_l); /* Flush PCI write */
2424 NVRAM_DELAY();
2425 }
2426
2427 /* Deselect chip. */
2428
2429 WRT_REG_WORD(®->nvram, NV_DESELECT);
2430 RD_REG_WORD(®->id_l); /* Flush PCI write */
2431 NVRAM_DELAY();
2432
2433 return data;
2434}
2435
2436static void
2437qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
2438{
2439 struct device_reg __iomem *reg = ha->iobase;
2440
2441 WRT_REG_WORD(®->nvram, data | NV_SELECT);
2442 RD_REG_WORD(®->id_l); /* Flush PCI write */
2443 NVRAM_DELAY();
2444 WRT_REG_WORD(®->nvram, data | NV_SELECT | NV_CLOCK);
2445 RD_REG_WORD(®->id_l); /* Flush PCI write */
2446 NVRAM_DELAY();
2447 WRT_REG_WORD(®->nvram, data | NV_SELECT);
2448 RD_REG_WORD(®->id_l); /* Flush PCI write */
2449 NVRAM_DELAY();
2450}
2451
2452/*
2453 * Mailbox Command
2454 * Issue mailbox command and waits for completion.
2455 *
2456 * Input:
2457 * ha = adapter block pointer.
2458 * mr = mailbox registers to load.
2459 * mb = data pointer for mailbox registers.
2460 *
2461 * Output:
2462 * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
2463 *
2464 * Returns:
2465 * 0 = success
2466 */
2467static int
2468qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
2469{
2470 struct device_reg __iomem *reg = ha->iobase;
2471 int status = 0;
2472 int cnt;
2473 uint16_t *optr, *iptr;
2474 uint16_t __iomem *mptr;
2475 uint16_t data;
2476 DECLARE_COMPLETION_ONSTACK(wait);
2477 struct timer_list timer;
2478
2479 ENTER("qla1280_mailbox_command");
2480
2481 if (ha->mailbox_wait) {
2482 printk(KERN_ERR "Warning mailbox wait already in use!\n");
2483 }
2484 ha->mailbox_wait = &wait;
2485
2486 /*
2487 * We really should start out by verifying that the mailbox is
2488 * available before starting sending the command data
2489 */
2490 /* Load mailbox registers. */
2491 mptr = (uint16_t __iomem *) ®->mailbox0;
2492 iptr = mb;
2493 for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
2494 if (mr & BIT_0) {
2495 WRT_REG_WORD(mptr, (*iptr));
2496 }
2497
2498 mr >>= 1;
2499 mptr++;
2500 iptr++;
2501 }
2502
2503 /* Issue set host interrupt command. */
2504
2505 /* set up a timer just in case we're really jammed */
2506 init_timer(&timer);
2507 timer.expires = jiffies + 20*HZ;
2508 timer.data = (unsigned long)ha;
2509 timer.function = qla1280_mailbox_timeout;
2510 add_timer(&timer);
2511
2512 spin_unlock_irq(ha->host->host_lock);
2513 WRT_REG_WORD(®->host_cmd, HC_SET_HOST_INT);
2514 data = qla1280_debounce_register(®->istatus);
2515
2516 wait_for_completion(&wait);
2517 del_timer_sync(&timer);
2518
2519 spin_lock_irq(ha->host->host_lock);
2520
2521 ha->mailbox_wait = NULL;
2522
2523 /* Check for mailbox command timeout. */
2524 if (ha->mailbox_out[0] != MBS_CMD_CMP) {
2525 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
2526 "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
2527 "0x%04x\n",
2528 mb[0], ha->mailbox_out[0], RD_REG_WORD(®->istatus));
2529 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
2530 RD_REG_WORD(®->mailbox0), RD_REG_WORD(®->mailbox1),
2531 RD_REG_WORD(®->mailbox2), RD_REG_WORD(®->mailbox3));
2532 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
2533 RD_REG_WORD(®->mailbox4), RD_REG_WORD(®->mailbox5),
2534 RD_REG_WORD(®->mailbox6), RD_REG_WORD(®->mailbox7));
2535 status = 1;
2536 }
2537
2538 /* Load return mailbox registers. */
2539 optr = mb;
2540 iptr = (uint16_t *) &ha->mailbox_out[0];
2541 mr = MAILBOX_REGISTER_COUNT;
2542 memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
2543
2544 if (ha->flags.reset_marker)
2545 qla1280_rst_aen(ha);
2546
2547 if (status)
2548 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
2549 "0x%x ****\n", mb[0]);
2550
2551 LEAVE("qla1280_mailbox_command");
2552 return status;
2553}
2554
2555/*
2556 * qla1280_poll
2557 * Polls ISP for interrupts.
2558 *
2559 * Input:
2560 * ha = adapter block pointer.
2561 */
2562static void
2563qla1280_poll(struct scsi_qla_host *ha)
2564{
2565 struct device_reg __iomem *reg = ha->iobase;
2566 uint16_t data;
2567 LIST_HEAD(done_q);
2568
2569 /* ENTER("qla1280_poll"); */
2570
2571 /* Check for pending interrupts. */
2572 data = RD_REG_WORD(®->istatus);
2573 if (data & RISC_INT)
2574 qla1280_isr(ha, &done_q);
2575
2576 if (!ha->mailbox_wait) {
2577 if (ha->flags.reset_marker)
2578 qla1280_rst_aen(ha);
2579 }
2580
2581 if (!list_empty(&done_q))
2582 qla1280_done(ha);
2583
2584 /* LEAVE("qla1280_poll"); */
2585}
2586
2587/*
2588 * qla1280_bus_reset
2589 * Issue SCSI bus reset.
2590 *
2591 * Input:
2592 * ha = adapter block pointer.
2593 * bus = SCSI bus number.
2594 *
2595 * Returns:
2596 * 0 = success
2597 */
2598static int
2599qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
2600{
2601 uint16_t mb[MAILBOX_REGISTER_COUNT];
2602 uint16_t reset_delay;
2603 int status;
2604
2605 dprintk(3, "qla1280_bus_reset: entered\n");
2606
2607 if (qla1280_verbose)
2608 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
2609 ha->host_no, bus);
2610
2611 reset_delay = ha->bus_settings[bus].bus_reset_delay;
2612 mb[0] = MBC_BUS_RESET;
2613 mb[1] = reset_delay;
2614 mb[2] = (uint16_t) bus;
2615 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2616
2617 if (status) {
2618 if (ha->bus_settings[bus].failed_reset_count > 2)
2619 ha->bus_settings[bus].scsi_bus_dead = 1;
2620 ha->bus_settings[bus].failed_reset_count++;
2621 } else {
2622 spin_unlock_irq(ha->host->host_lock);
2623 ssleep(reset_delay);
2624 spin_lock_irq(ha->host->host_lock);
2625
2626 ha->bus_settings[bus].scsi_bus_dead = 0;
2627 ha->bus_settings[bus].failed_reset_count = 0;
2628 ha->bus_settings[bus].reset_marker = 0;
2629 /* Issue marker command. */
2630 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
2631 }
2632
2633 /*
2634 * We should probably call qla1280_set_target_parameters()
2635 * here as well for all devices on the bus.
2636 */
2637
2638 if (status)
2639 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
2640 else
2641 dprintk(3, "qla1280_bus_reset: exiting normally\n");
2642
2643 return status;
2644}
2645
2646/*
2647 * qla1280_device_reset
2648 * Issue bus device reset message to the target.
2649 *
2650 * Input:
2651 * ha = adapter block pointer.
2652 * bus = SCSI BUS number.
2653 * target = SCSI ID.
2654 *
2655 * Returns:
2656 * 0 = success
2657 */
2658static int
2659qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
2660{
2661 uint16_t mb[MAILBOX_REGISTER_COUNT];
2662 int status;
2663
2664 ENTER("qla1280_device_reset");
2665
2666 mb[0] = MBC_ABORT_TARGET;
2667 mb[1] = (bus ? (target | BIT_7) : target) << 8;
2668 mb[2] = 1;
2669 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2670
2671 /* Issue marker command. */
2672 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
2673
2674 if (status)
2675 dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
2676
2677 LEAVE("qla1280_device_reset");
2678 return status;
2679}
2680
2681/*
2682 * qla1280_abort_command
2683 * Abort command aborts a specified IOCB.
2684 *
2685 * Input:
2686 * ha = adapter block pointer.
2687 * sp = SB structure pointer.
2688 *
2689 * Returns:
2690 * 0 = success
2691 */
2692static int
2693qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
2694{
2695 uint16_t mb[MAILBOX_REGISTER_COUNT];
2696 unsigned int bus, target, lun;
2697 int status;
2698
2699 ENTER("qla1280_abort_command");
2700
2701 bus = SCSI_BUS_32(sp->cmd);
2702 target = SCSI_TCN_32(sp->cmd);
2703 lun = SCSI_LUN_32(sp->cmd);
2704
2705 sp->flags |= SRB_ABORT_PENDING;
2706
2707 mb[0] = MBC_ABORT_COMMAND;
2708 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2709 mb[2] = handle >> 16;
2710 mb[3] = handle & 0xffff;
2711 status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
2712
2713 if (status) {
2714 dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
2715 sp->flags &= ~SRB_ABORT_PENDING;
2716 }
2717
2718
2719 LEAVE("qla1280_abort_command");
2720 return status;
2721}
2722
2723/*
2724 * qla1280_reset_adapter
2725 * Reset adapter.
2726 *
2727 * Input:
2728 * ha = adapter block pointer.
2729 */
2730static void
2731qla1280_reset_adapter(struct scsi_qla_host *ha)
2732{
2733 struct device_reg __iomem *reg = ha->iobase;
2734
2735 ENTER("qla1280_reset_adapter");
2736
2737 /* Disable ISP chip */
2738 ha->flags.online = 0;
2739 WRT_REG_WORD(®->ictrl, ISP_RESET);
2740 WRT_REG_WORD(®->host_cmd,
2741 HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
2742 RD_REG_WORD(®->id_l); /* Flush PCI write */
2743
2744 LEAVE("qla1280_reset_adapter");
2745}
2746
2747/*
2748 * Issue marker command.
2749 * Function issues marker IOCB.
2750 *
2751 * Input:
2752 * ha = adapter block pointer.
2753 * bus = SCSI BUS number
2754 * id = SCSI ID
2755 * lun = SCSI LUN
2756 * type = marker modifier
2757 */
2758static void
2759qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
2760{
2761 struct mrk_entry *pkt;
2762
2763 ENTER("qla1280_marker");
2764
2765 /* Get request packet. */
2766 if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
2767 pkt->entry_type = MARKER_TYPE;
2768 pkt->lun = (uint8_t) lun;
2769 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
2770 pkt->modifier = type;
2771 pkt->entry_status = 0;
2772
2773 /* Issue command to ISP */
2774 qla1280_isp_cmd(ha);
2775 }
2776
2777 LEAVE("qla1280_marker");
2778}
2779
2780
2781/*
2782 * qla1280_64bit_start_scsi
2783 * The start SCSI is responsible for building request packets on
2784 * request ring and modifying ISP input pointer.
2785 *
2786 * Input:
2787 * ha = adapter block pointer.
2788 * sp = SB structure pointer.
2789 *
2790 * Returns:
2791 * 0 = success, was able to issue command.
2792 */
2793#ifdef QLA_64BIT_PTR
2794static int
2795qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2796{
2797 struct device_reg __iomem *reg = ha->iobase;
2798 struct scsi_cmnd *cmd = sp->cmd;
2799 cmd_a64_entry_t *pkt;
2800 __le32 *dword_ptr;
2801 dma_addr_t dma_handle;
2802 int status = 0;
2803 int cnt;
2804 int req_cnt;
2805 int seg_cnt;
2806 u8 dir;
2807
2808 ENTER("qla1280_64bit_start_scsi:");
2809
2810 /* Calculate number of entries and segments required. */
2811 req_cnt = 1;
2812 seg_cnt = scsi_dma_map(cmd);
2813 if (seg_cnt > 0) {
2814 if (seg_cnt > 2) {
2815 req_cnt += (seg_cnt - 2) / 5;
2816 if ((seg_cnt - 2) % 5)
2817 req_cnt++;
2818 }
2819 } else if (seg_cnt < 0) {
2820 status = 1;
2821 goto out;
2822 }
2823
2824 if ((req_cnt + 2) >= ha->req_q_cnt) {
2825 /* Calculate number of free request entries. */
2826 cnt = RD_REG_WORD(®->mailbox4);
2827 if (ha->req_ring_index < cnt)
2828 ha->req_q_cnt = cnt - ha->req_ring_index;
2829 else
2830 ha->req_q_cnt =
2831 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
2832 }
2833
2834 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
2835 ha->req_q_cnt, seg_cnt);
2836
2837 /* If room for request in request ring. */
2838 if ((req_cnt + 2) >= ha->req_q_cnt) {
2839 status = SCSI_MLQUEUE_HOST_BUSY;
2840 dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt="
2841 "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
2842 req_cnt);
2843 goto out;
2844 }
2845
2846 /* Check for room in outstanding command list. */
2847 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
2848 ha->outstanding_cmds[cnt] != NULL; cnt++);
2849
2850 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
2851 status = SCSI_MLQUEUE_HOST_BUSY;
2852 dprintk(2, "qla1280_start_scsi: NO ROOM IN "
2853 "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
2854 goto out;
2855 }
2856
2857 ha->outstanding_cmds[cnt] = sp;
2858 ha->req_q_cnt -= req_cnt;
2859 CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
2860
2861 dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
2862 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
2863 dprintk(2, " bus %i, target %i, lun %i\n",
2864 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2865 qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
2866
2867 /*
2868 * Build command packet.
2869 */
2870 pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
2871
2872 pkt->entry_type = COMMAND_A64_TYPE;
2873 pkt->entry_count = (uint8_t) req_cnt;
2874 pkt->sys_define = (uint8_t) ha->req_ring_index;
2875 pkt->entry_status = 0;
2876 pkt->handle = cpu_to_le32(cnt);
2877
2878 /* Zero out remaining portion of packet. */
2879 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
2880
2881 /* Set ISP command timeout. */
2882 pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ);
2883
2884 /* Set device target ID and LUN */
2885 pkt->lun = SCSI_LUN_32(cmd);
2886 pkt->target = SCSI_BUS_32(cmd) ?
2887 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
2888
2889 /* Enable simple tag queuing if device supports it. */
2890 if (cmd->device->simple_tags)
2891 pkt->control_flags |= cpu_to_le16(BIT_3);
2892
2893 /* Load SCSI command packet. */
2894 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
2895 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
2896 /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
2897
2898 /* Set transfer direction. */
2899 dir = qla1280_data_direction(cmd);
2900 pkt->control_flags |= cpu_to_le16(dir);
2901
2902 /* Set total data segment count. */
2903 pkt->dseg_count = cpu_to_le16(seg_cnt);
2904
2905 /*
2906 * Load data segments.
2907 */
2908 if (seg_cnt) { /* If data transfer. */
2909 struct scatterlist *sg, *s;
2910 int remseg = seg_cnt;
2911
2912 sg = scsi_sglist(cmd);
2913
2914 /* Setup packet address segment pointer. */
2915 dword_ptr = (u32 *)&pkt->dseg_0_address;
2916
2917 /* Load command entry data segments. */
2918 for_each_sg(sg, s, seg_cnt, cnt) {
2919 if (cnt == 2)
2920 break;
2921
2922 dma_handle = sg_dma_address(s);
2923#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2924 if (ha->flags.use_pci_vchannel)
2925 sn_pci_set_vchan(ha->pdev,
2926 (unsigned long *)&dma_handle,
2927 SCSI_BUS_32(cmd));
2928#endif
2929 *dword_ptr++ =
2930 cpu_to_le32(pci_dma_lo32(dma_handle));
2931 *dword_ptr++ =
2932 cpu_to_le32(pci_dma_hi32(dma_handle));
2933 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
2934 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
2935 cpu_to_le32(pci_dma_hi32(dma_handle)),
2936 cpu_to_le32(pci_dma_lo32(dma_handle)),
2937 cpu_to_le32(sg_dma_len(sg_next(s))));
2938 remseg--;
2939 }
2940 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
2941 "command packet data - b %i, t %i, l %i \n",
2942 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
2943 SCSI_LUN_32(cmd));
2944 qla1280_dump_buffer(5, (char *)pkt,
2945 REQUEST_ENTRY_SIZE);
2946
2947 /*
2948 * Build continuation packets.
2949 */
2950 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
2951 "remains\n", seg_cnt);
2952
2953 while (remseg > 0) {
2954 /* Update sg start */
2955 sg = s;
2956 /* Adjust ring index. */
2957 ha->req_ring_index++;
2958 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2959 ha->req_ring_index = 0;
2960 ha->request_ring_ptr =
2961 ha->request_ring;
2962 } else
2963 ha->request_ring_ptr++;
2964
2965 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
2966
2967 /* Zero out packet. */
2968 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2969
2970 /* Load packet defaults. */
2971 ((struct cont_a64_entry *) pkt)->entry_type =
2972 CONTINUE_A64_TYPE;
2973 ((struct cont_a64_entry *) pkt)->entry_count = 1;
2974 ((struct cont_a64_entry *) pkt)->sys_define =
2975 (uint8_t)ha->req_ring_index;
2976 /* Setup packet address segment pointer. */
2977 dword_ptr =
2978 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
2979
2980 /* Load continuation entry data segments. */
2981 for_each_sg(sg, s, remseg, cnt) {
2982 if (cnt == 5)
2983 break;
2984 dma_handle = sg_dma_address(s);
2985#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2986 if (ha->flags.use_pci_vchannel)
2987 sn_pci_set_vchan(ha->pdev,
2988 (unsigned long *)&dma_handle,
2989 SCSI_BUS_32(cmd));
2990#endif
2991 *dword_ptr++ =
2992 cpu_to_le32(pci_dma_lo32(dma_handle));
2993 *dword_ptr++ =
2994 cpu_to_le32(pci_dma_hi32(dma_handle));
2995 *dword_ptr++ =
2996 cpu_to_le32(sg_dma_len(s));
2997 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
2998 cpu_to_le32(pci_dma_hi32(dma_handle)),
2999 cpu_to_le32(pci_dma_lo32(dma_handle)),
3000 cpu_to_le32(sg_dma_len(s)));
3001 }
3002 remseg -= cnt;
3003 dprintk(5, "qla1280_64bit_start_scsi: "
3004 "continuation packet data - b %i, t "
3005 "%i, l %i \n", SCSI_BUS_32(cmd),
3006 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3007 qla1280_dump_buffer(5, (char *)pkt,
3008 REQUEST_ENTRY_SIZE);
3009 }
3010 } else { /* No data transfer */
3011 dprintk(5, "qla1280_64bit_start_scsi: No data, command "
3012 "packet data - b %i, t %i, l %i \n",
3013 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3014 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3015 }
3016 /* Adjust ring index. */
3017 ha->req_ring_index++;
3018 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3019 ha->req_ring_index = 0;
3020 ha->request_ring_ptr = ha->request_ring;
3021 } else
3022 ha->request_ring_ptr++;
3023
3024 /* Set chip new ring index. */
3025 dprintk(2,
3026 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
3027 sp->flags |= SRB_SENT;
3028 ha->actthreads++;
3029 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
3030 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3031 mmiowb();
3032
3033 out:
3034 if (status)
3035 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
3036 else
3037 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
3038
3039 return status;
3040}
3041#else /* !QLA_64BIT_PTR */
3042
3043/*
3044 * qla1280_32bit_start_scsi
3045 * The start SCSI is responsible for building request packets on
3046 * request ring and modifying ISP input pointer.
3047 *
3048 * The Qlogic firmware interface allows every queue slot to have a SCSI
3049 * command and up to 4 scatter/gather (SG) entries. If we need more
3050 * than 4 SG entries, then continuation entries are used that can
3051 * hold another 7 entries each. The start routine determines if there
3052 * is eought empty slots then build the combination of requests to
3053 * fulfill the OS request.
3054 *
3055 * Input:
3056 * ha = adapter block pointer.
3057 * sp = SCSI Request Block structure pointer.
3058 *
3059 * Returns:
3060 * 0 = success, was able to issue command.
3061 */
3062static int
3063qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
3064{
3065 struct device_reg __iomem *reg = ha->iobase;
3066 struct scsi_cmnd *cmd = sp->cmd;
3067 struct cmd_entry *pkt;
3068 __le32 *dword_ptr;
3069 int status = 0;
3070 int cnt;
3071 int req_cnt;
3072 int seg_cnt;
3073 u8 dir;
3074
3075 ENTER("qla1280_32bit_start_scsi");
3076
3077 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
3078 cmd->cmnd[0]);
3079
3080 /* Calculate number of entries and segments required. */
3081 req_cnt = 1;
3082 seg_cnt = scsi_dma_map(cmd);
3083 if (seg_cnt) {
3084 /*
3085 * if greater than four sg entries then we need to allocate
3086 * continuation entries
3087 */
3088 if (seg_cnt > 4) {
3089 req_cnt += (seg_cnt - 4) / 7;
3090 if ((seg_cnt - 4) % 7)
3091 req_cnt++;
3092 }
3093 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
3094 cmd, seg_cnt, req_cnt);
3095 } else if (seg_cnt < 0) {
3096 status = 1;
3097 goto out;
3098 }
3099
3100 if ((req_cnt + 2) >= ha->req_q_cnt) {
3101 /* Calculate number of free request entries. */
3102 cnt = RD_REG_WORD(®->mailbox4);
3103 if (ha->req_ring_index < cnt)
3104 ha->req_q_cnt = cnt - ha->req_ring_index;
3105 else
3106 ha->req_q_cnt =
3107 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3108 }
3109
3110 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
3111 ha->req_q_cnt, seg_cnt);
3112 /* If room for request in request ring. */
3113 if ((req_cnt + 2) >= ha->req_q_cnt) {
3114 status = SCSI_MLQUEUE_HOST_BUSY;
3115 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
3116 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
3117 ha->req_q_cnt, req_cnt);
3118 goto out;
3119 }
3120
3121 /* Check for empty slot in outstanding command list. */
3122 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3123 (ha->outstanding_cmds[cnt] != 0); cnt++) ;
3124
3125 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
3126 status = SCSI_MLQUEUE_HOST_BUSY;
3127 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
3128 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
3129 goto out;
3130 }
3131
3132 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
3133 ha->outstanding_cmds[cnt] = sp;
3134 ha->req_q_cnt -= req_cnt;
3135
3136 /*
3137 * Build command packet.
3138 */
3139 pkt = (struct cmd_entry *) ha->request_ring_ptr;
3140
3141 pkt->entry_type = COMMAND_TYPE;
3142 pkt->entry_count = (uint8_t) req_cnt;
3143 pkt->sys_define = (uint8_t) ha->req_ring_index;
3144 pkt->entry_status = 0;
3145 pkt->handle = cpu_to_le32(cnt);
3146
3147 /* Zero out remaining portion of packet. */
3148 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3149
3150 /* Set ISP command timeout. */
3151 pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ);
3152
3153 /* Set device target ID and LUN */
3154 pkt->lun = SCSI_LUN_32(cmd);
3155 pkt->target = SCSI_BUS_32(cmd) ?
3156 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3157
3158 /* Enable simple tag queuing if device supports it. */
3159 if (cmd->device->simple_tags)
3160 pkt->control_flags |= cpu_to_le16(BIT_3);
3161
3162 /* Load SCSI command packet. */
3163 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
3164 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
3165
3166 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3167 /* Set transfer direction. */
3168 dir = qla1280_data_direction(cmd);
3169 pkt->control_flags |= cpu_to_le16(dir);
3170
3171 /* Set total data segment count. */
3172 pkt->dseg_count = cpu_to_le16(seg_cnt);
3173
3174 /*
3175 * Load data segments.
3176 */
3177 if (seg_cnt) {
3178 struct scatterlist *sg, *s;
3179 int remseg = seg_cnt;
3180
3181 sg = scsi_sglist(cmd);
3182
3183 /* Setup packet address segment pointer. */
3184 dword_ptr = &pkt->dseg_0_address;
3185
3186 dprintk(3, "Building S/G data segments..\n");
3187 qla1280_dump_buffer(1, (char *)sg, 4 * 16);
3188
3189 /* Load command entry data segments. */
3190 for_each_sg(sg, s, seg_cnt, cnt) {
3191 if (cnt == 4)
3192 break;
3193 *dword_ptr++ =
3194 cpu_to_le32(pci_dma_lo32(sg_dma_address(s)));
3195 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
3196 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
3197 (pci_dma_lo32(sg_dma_address(s))),
3198 (sg_dma_len(s)));
3199 remseg--;
3200 }
3201 /*
3202 * Build continuation packets.
3203 */
3204 dprintk(3, "S/G Building Continuation"
3205 "...seg_cnt=0x%x remains\n", seg_cnt);
3206 while (remseg > 0) {
3207 /* Continue from end point */
3208 sg = s;
3209 /* Adjust ring index. */
3210 ha->req_ring_index++;
3211 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3212 ha->req_ring_index = 0;
3213 ha->request_ring_ptr =
3214 ha->request_ring;
3215 } else
3216 ha->request_ring_ptr++;
3217
3218 pkt = (struct cmd_entry *)ha->request_ring_ptr;
3219
3220 /* Zero out packet. */
3221 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3222
3223 /* Load packet defaults. */
3224 ((struct cont_entry *) pkt)->
3225 entry_type = CONTINUE_TYPE;
3226 ((struct cont_entry *) pkt)->entry_count = 1;
3227
3228 ((struct cont_entry *) pkt)->sys_define =
3229 (uint8_t) ha->req_ring_index;
3230
3231 /* Setup packet address segment pointer. */
3232 dword_ptr =
3233 &((struct cont_entry *) pkt)->dseg_0_address;
3234
3235 /* Load continuation entry data segments. */
3236 for_each_sg(sg, s, remseg, cnt) {
3237 if (cnt == 7)
3238 break;
3239 *dword_ptr++ =
3240 cpu_to_le32(pci_dma_lo32(sg_dma_address(s)));
3241 *dword_ptr++ =
3242 cpu_to_le32(sg_dma_len(s));
3243 dprintk(1,
3244 "S/G Segment Cont. phys_addr=0x%x, "
3245 "len=0x%x\n",
3246 cpu_to_le32(pci_dma_lo32(sg_dma_address(s))),
3247 cpu_to_le32(sg_dma_len(s)));
3248 }
3249 remseg -= cnt;
3250 dprintk(5, "qla1280_32bit_start_scsi: "
3251 "continuation packet data - "
3252 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
3253 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3254 qla1280_dump_buffer(5, (char *)pkt,
3255 REQUEST_ENTRY_SIZE);
3256 }
3257 } else { /* No data transfer at all */
3258 dprintk(5, "qla1280_32bit_start_scsi: No data, command "
3259 "packet data - \n");
3260 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3261 }
3262 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
3263 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3264 REQUEST_ENTRY_SIZE);
3265
3266 /* Adjust ring index. */
3267 ha->req_ring_index++;
3268 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3269 ha->req_ring_index = 0;
3270 ha->request_ring_ptr = ha->request_ring;
3271 } else
3272 ha->request_ring_ptr++;
3273
3274 /* Set chip new ring index. */
3275 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
3276 "for pending command\n");
3277 sp->flags |= SRB_SENT;
3278 ha->actthreads++;
3279 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
3280 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3281 mmiowb();
3282
3283out:
3284 if (status)
3285 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
3286
3287 LEAVE("qla1280_32bit_start_scsi");
3288
3289 return status;
3290}
3291#endif
3292
3293/*
3294 * qla1280_req_pkt
3295 * Function is responsible for locking ring and
3296 * getting a zeroed out request packet.
3297 *
3298 * Input:
3299 * ha = adapter block pointer.
3300 *
3301 * Returns:
3302 * 0 = failed to get slot.
3303 */
3304static request_t *
3305qla1280_req_pkt(struct scsi_qla_host *ha)
3306{
3307 struct device_reg __iomem *reg = ha->iobase;
3308 request_t *pkt = NULL;
3309 int cnt;
3310 uint32_t timer;
3311
3312 ENTER("qla1280_req_pkt");
3313
3314 /*
3315 * This can be called from interrupt context, damn it!!!
3316 */
3317 /* Wait for 30 seconds for slot. */
3318 for (timer = 15000000; timer; timer--) {
3319 if (ha->req_q_cnt > 0) {
3320 /* Calculate number of free request entries. */
3321 cnt = RD_REG_WORD(®->mailbox4);
3322 if (ha->req_ring_index < cnt)
3323 ha->req_q_cnt = cnt - ha->req_ring_index;
3324 else
3325 ha->req_q_cnt =
3326 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3327 }
3328
3329 /* Found empty request ring slot? */
3330 if (ha->req_q_cnt > 0) {
3331 ha->req_q_cnt--;
3332 pkt = ha->request_ring_ptr;
3333
3334 /* Zero out packet. */
3335 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3336
3337 /*
3338 * How can this be right when we have a ring
3339 * size of 512???
3340 */
3341 /* Set system defined field. */
3342 pkt->sys_define = (uint8_t) ha->req_ring_index;
3343
3344 /* Set entry count. */
3345 pkt->entry_count = 1;
3346
3347 break;
3348 }
3349
3350 udelay(2); /* 10 */
3351
3352 /* Check for pending interrupts. */
3353 qla1280_poll(ha);
3354 }
3355
3356 if (!pkt)
3357 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
3358 else
3359 dprintk(3, "qla1280_req_pkt: exiting normally\n");
3360
3361 return pkt;
3362}
3363
3364/*
3365 * qla1280_isp_cmd
3366 * Function is responsible for modifying ISP input pointer.
3367 * Releases ring lock.
3368 *
3369 * Input:
3370 * ha = adapter block pointer.
3371 */
3372static void
3373qla1280_isp_cmd(struct scsi_qla_host *ha)
3374{
3375 struct device_reg __iomem *reg = ha->iobase;
3376
3377 ENTER("qla1280_isp_cmd");
3378
3379 dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
3380 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3381 REQUEST_ENTRY_SIZE);
3382
3383 /* Adjust ring index. */
3384 ha->req_ring_index++;
3385 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3386 ha->req_ring_index = 0;
3387 ha->request_ring_ptr = ha->request_ring;
3388 } else
3389 ha->request_ring_ptr++;
3390
3391 /*
3392 * Update request index to mailbox4 (Request Queue In).
3393 * The mmiowb() ensures that this write is ordered with writes by other
3394 * CPUs. Without the mmiowb(), it is possible for the following:
3395 * CPUA posts write of index 5 to mailbox4
3396 * CPUA releases host lock
3397 * CPUB acquires host lock
3398 * CPUB posts write of index 6 to mailbox4
3399 * On PCI bus, order reverses and write of 6 posts, then index 5,
3400 * causing chip to issue full queue of stale commands
3401 * The mmiowb() prevents future writes from crossing the barrier.
3402 * See Documentation/DocBook/deviceiobook.tmpl for more information.
3403 */
3404 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
3405 mmiowb();
3406
3407 LEAVE("qla1280_isp_cmd");
3408}
3409
3410/****************************************************************************/
3411/* Interrupt Service Routine. */
3412/****************************************************************************/
3413
3414/****************************************************************************
3415 * qla1280_isr
3416 * Calls I/O done on command completion.
3417 *
3418 * Input:
3419 * ha = adapter block pointer.
3420 * done_q = done queue.
3421 ****************************************************************************/
3422static void
3423qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
3424{
3425 struct device_reg __iomem *reg = ha->iobase;
3426 struct response *pkt;
3427 struct srb *sp = NULL;
3428 uint16_t mailbox[MAILBOX_REGISTER_COUNT];
3429 uint16_t *wptr;
3430 uint32_t index;
3431 u16 istatus;
3432
3433 ENTER("qla1280_isr");
3434
3435 istatus = RD_REG_WORD(®->istatus);
3436 if (!(istatus & (RISC_INT | PCI_INT)))
3437 return;
3438
3439 /* Save mailbox register 5 */
3440 mailbox[5] = RD_REG_WORD(®->mailbox5);
3441
3442 /* Check for mailbox interrupt. */
3443
3444 mailbox[0] = RD_REG_WORD_dmasync(®->semaphore);
3445
3446 if (mailbox[0] & BIT_0) {
3447 /* Get mailbox data. */
3448 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
3449
3450 wptr = &mailbox[0];
3451 *wptr++ = RD_REG_WORD(®->mailbox0);
3452 *wptr++ = RD_REG_WORD(®->mailbox1);
3453 *wptr = RD_REG_WORD(®->mailbox2);
3454 if (mailbox[0] != MBA_SCSI_COMPLETION) {
3455 wptr++;
3456 *wptr++ = RD_REG_WORD(®->mailbox3);
3457 *wptr++ = RD_REG_WORD(®->mailbox4);
3458 wptr++;
3459 *wptr++ = RD_REG_WORD(®->mailbox6);
3460 *wptr = RD_REG_WORD(®->mailbox7);
3461 }
3462
3463 /* Release mailbox registers. */
3464
3465 WRT_REG_WORD(®->semaphore, 0);
3466 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
3467
3468 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
3469 mailbox[0]);
3470
3471 /* Handle asynchronous event */
3472 switch (mailbox[0]) {
3473 case MBA_SCSI_COMPLETION: /* Response completion */
3474 dprintk(5, "qla1280_isr: mailbox SCSI response "
3475 "completion\n");
3476
3477 if (ha->flags.online) {
3478 /* Get outstanding command index. */
3479 index = mailbox[2] << 16 | mailbox[1];
3480
3481 /* Validate handle. */
3482 if (index < MAX_OUTSTANDING_COMMANDS)
3483 sp = ha->outstanding_cmds[index];
3484 else
3485 sp = NULL;
3486
3487 if (sp) {
3488 /* Free outstanding command slot. */
3489 ha->outstanding_cmds[index] = NULL;
3490
3491 /* Save ISP completion status */
3492 CMD_RESULT(sp->cmd) = 0;
3493 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3494
3495 /* Place block on done queue */
3496 list_add_tail(&sp->list, done_q);
3497 } else {
3498 /*
3499 * If we get here we have a real problem!
3500 */
3501 printk(KERN_WARNING
3502 "qla1280: ISP invalid handle\n");
3503 }
3504 }
3505 break;
3506
3507 case MBA_BUS_RESET: /* SCSI Bus Reset */
3508 ha->flags.reset_marker = 1;
3509 index = mailbox[6] & BIT_0;
3510 ha->bus_settings[index].reset_marker = 1;
3511
3512 printk(KERN_DEBUG "qla1280_isr(): index %i "
3513 "asynchronous BUS_RESET\n", index);
3514 break;
3515
3516 case MBA_SYSTEM_ERR: /* System Error */
3517 printk(KERN_WARNING
3518 "qla1280: ISP System Error - mbx1=%xh, mbx2="
3519 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
3520 mailbox[3]);
3521 break;
3522
3523 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
3524 printk(KERN_WARNING
3525 "qla1280: ISP Request Transfer Error\n");
3526 break;
3527
3528 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
3529 printk(KERN_WARNING
3530 "qla1280: ISP Response Transfer Error\n");
3531 break;
3532
3533 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
3534 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
3535 break;
3536
3537 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */
3538 dprintk(2,
3539 "qla1280_isr: asynchronous TIMEOUT_RESET\n");
3540 break;
3541
3542 case MBA_DEVICE_RESET: /* Bus Device Reset */
3543 printk(KERN_INFO "qla1280_isr(): asynchronous "
3544 "BUS_DEVICE_RESET\n");
3545
3546 ha->flags.reset_marker = 1;
3547 index = mailbox[6] & BIT_0;
3548 ha->bus_settings[index].reset_marker = 1;
3549 break;
3550
3551 case MBA_BUS_MODE_CHANGE:
3552 dprintk(2,
3553 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
3554 break;
3555
3556 default:
3557 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
3558 if (mailbox[0] < MBA_ASYNC_EVENT) {
3559 wptr = &mailbox[0];
3560 memcpy((uint16_t *) ha->mailbox_out, wptr,
3561 MAILBOX_REGISTER_COUNT *
3562 sizeof(uint16_t));
3563
3564 if(ha->mailbox_wait != NULL)
3565 complete(ha->mailbox_wait);
3566 }
3567 break;
3568 }
3569 } else {
3570 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
3571 }
3572
3573 /*
3574 * We will receive interrupts during mailbox testing prior to
3575 * the card being marked online, hence the double check.
3576 */
3577 if (!(ha->flags.online && !ha->mailbox_wait)) {
3578 dprintk(2, "qla1280_isr: Response pointer Error\n");
3579 goto out;
3580 }
3581
3582 if (mailbox[5] >= RESPONSE_ENTRY_CNT)
3583 goto out;
3584
3585 while (ha->rsp_ring_index != mailbox[5]) {
3586 pkt = ha->response_ring_ptr;
3587
3588 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
3589 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
3590 dprintk(5,"qla1280_isr: response packet data\n");
3591 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
3592
3593 if (pkt->entry_type == STATUS_TYPE) {
3594 if ((le16_to_cpu(pkt->scsi_status) & 0xff)
3595 || pkt->comp_status || pkt->entry_status) {
3596 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3597 "0x%x mailbox[5] = 0x%x, comp_status "
3598 "= 0x%x, scsi_status = 0x%x\n",
3599 ha->rsp_ring_index, mailbox[5],
3600 le16_to_cpu(pkt->comp_status),
3601 le16_to_cpu(pkt->scsi_status));
3602 }
3603 } else {
3604 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3605 "0x%x, mailbox[5] = 0x%x\n",
3606 ha->rsp_ring_index, mailbox[5]);
3607 dprintk(2, "qla1280_isr: response packet data\n");
3608 qla1280_dump_buffer(2, (char *)pkt,
3609 RESPONSE_ENTRY_SIZE);
3610 }
3611
3612 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
3613 dprintk(2, "status: Cmd %p, handle %i\n",
3614 ha->outstanding_cmds[pkt->handle]->cmd,
3615 pkt->handle);
3616 if (pkt->entry_type == STATUS_TYPE)
3617 qla1280_status_entry(ha, pkt, done_q);
3618 else
3619 qla1280_error_entry(ha, pkt, done_q);
3620 /* Adjust ring index. */
3621 ha->rsp_ring_index++;
3622 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
3623 ha->rsp_ring_index = 0;
3624 ha->response_ring_ptr = ha->response_ring;
3625 } else
3626 ha->response_ring_ptr++;
3627 WRT_REG_WORD(®->mailbox5, ha->rsp_ring_index);
3628 }
3629 }
3630
3631 out:
3632 LEAVE("qla1280_isr");
3633}
3634
3635/*
3636 * qla1280_rst_aen
3637 * Processes asynchronous reset.
3638 *
3639 * Input:
3640 * ha = adapter block pointer.
3641 */
3642static void
3643qla1280_rst_aen(struct scsi_qla_host *ha)
3644{
3645 uint8_t bus;
3646
3647 ENTER("qla1280_rst_aen");
3648
3649 if (ha->flags.online && !ha->flags.reset_active &&
3650 !ha->flags.abort_isp_active) {
3651 ha->flags.reset_active = 1;
3652 while (ha->flags.reset_marker) {
3653 /* Issue marker command. */
3654 ha->flags.reset_marker = 0;
3655 for (bus = 0; bus < ha->ports &&
3656 !ha->flags.reset_marker; bus++) {
3657 if (ha->bus_settings[bus].reset_marker) {
3658 ha->bus_settings[bus].reset_marker = 0;
3659 qla1280_marker(ha, bus, 0, 0,
3660 MK_SYNC_ALL);
3661 }
3662 }
3663 }
3664 }
3665
3666 LEAVE("qla1280_rst_aen");
3667}
3668
3669
3670/*
3671 * qla1280_status_entry
3672 * Processes received ISP status entry.
3673 *
3674 * Input:
3675 * ha = adapter block pointer.
3676 * pkt = entry pointer.
3677 * done_q = done queue.
3678 */
3679static void
3680qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
3681 struct list_head *done_q)
3682{
3683 unsigned int bus, target, lun;
3684 int sense_sz;
3685 struct srb *sp;
3686 struct scsi_cmnd *cmd;
3687 uint32_t handle = le32_to_cpu(pkt->handle);
3688 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
3689 uint16_t comp_status = le16_to_cpu(pkt->comp_status);
3690
3691 ENTER("qla1280_status_entry");
3692
3693 /* Validate handle. */
3694 if (handle < MAX_OUTSTANDING_COMMANDS)
3695 sp = ha->outstanding_cmds[handle];
3696 else
3697 sp = NULL;
3698
3699 if (!sp) {
3700 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
3701 goto out;
3702 }
3703
3704 /* Free outstanding command slot. */
3705 ha->outstanding_cmds[handle] = NULL;
3706
3707 cmd = sp->cmd;
3708
3709 /* Generate LU queue on cntrl, target, LUN */
3710 bus = SCSI_BUS_32(cmd);
3711 target = SCSI_TCN_32(cmd);
3712 lun = SCSI_LUN_32(cmd);
3713
3714 if (comp_status || scsi_status) {
3715 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
3716 "0x%x, handle = 0x%x\n", comp_status,
3717 scsi_status, handle);
3718 }
3719
3720 /* Target busy or queue full */
3721 if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL ||
3722 (scsi_status & 0xFF) == SAM_STAT_BUSY) {
3723 CMD_RESULT(cmd) = scsi_status & 0xff;
3724 } else {
3725
3726 /* Save ISP completion status */
3727 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
3728
3729 if (scsi_status & SAM_STAT_CHECK_CONDITION) {
3730 if (comp_status != CS_ARS_FAILED) {
3731 uint16_t req_sense_length =
3732 le16_to_cpu(pkt->req_sense_length);
3733 if (req_sense_length < CMD_SNSLEN(cmd))
3734 sense_sz = req_sense_length;
3735 else
3736 /*
3737 * scsi_cmnd->sense_buffer is
3738 * 64 bytes, why only copy 63?
3739 * This looks wrong! /Jes
3740 */
3741 sense_sz = CMD_SNSLEN(cmd) - 1;
3742
3743 memcpy(cmd->sense_buffer,
3744 &pkt->req_sense_data, sense_sz);
3745 } else
3746 sense_sz = 0;
3747 memset(cmd->sense_buffer + sense_sz, 0,
3748 SCSI_SENSE_BUFFERSIZE - sense_sz);
3749
3750 dprintk(2, "qla1280_status_entry: Check "
3751 "condition Sense data, b %i, t %i, "
3752 "l %i\n", bus, target, lun);
3753 if (sense_sz)
3754 qla1280_dump_buffer(2,
3755 (char *)cmd->sense_buffer,
3756 sense_sz);
3757 }
3758 }
3759
3760 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3761
3762 /* Place command on done queue. */
3763 list_add_tail(&sp->list, done_q);
3764 out:
3765 LEAVE("qla1280_status_entry");
3766}
3767
3768/*
3769 * qla1280_error_entry
3770 * Processes error entry.
3771 *
3772 * Input:
3773 * ha = adapter block pointer.
3774 * pkt = entry pointer.
3775 * done_q = done queue.
3776 */
3777static void
3778qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
3779 struct list_head *done_q)
3780{
3781 struct srb *sp;
3782 uint32_t handle = le32_to_cpu(pkt->handle);
3783
3784 ENTER("qla1280_error_entry");
3785
3786 if (pkt->entry_status & BIT_3)
3787 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
3788 else if (pkt->entry_status & BIT_2)
3789 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
3790 else if (pkt->entry_status & BIT_1)
3791 dprintk(2, "qla1280_error_entry: FULL flag error\n");
3792 else
3793 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
3794
3795 /* Validate handle. */
3796 if (handle < MAX_OUTSTANDING_COMMANDS)
3797 sp = ha->outstanding_cmds[handle];
3798 else
3799 sp = NULL;
3800
3801 if (sp) {
3802 /* Free outstanding command slot. */
3803 ha->outstanding_cmds[handle] = NULL;
3804
3805 /* Bad payload or header */
3806 if (pkt->entry_status & (BIT_3 + BIT_2)) {
3807 /* Bad payload or header, set error status. */
3808 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
3809 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3810 } else if (pkt->entry_status & BIT_1) { /* FULL flag */
3811 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
3812 } else {
3813 /* Set error status. */
3814 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3815 }
3816
3817 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3818
3819 /* Place command on done queue. */
3820 list_add_tail(&sp->list, done_q);
3821 }
3822#ifdef QLA_64BIT_PTR
3823 else if (pkt->entry_type == COMMAND_A64_TYPE) {
3824 printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
3825 }
3826#endif
3827
3828 LEAVE("qla1280_error_entry");
3829}
3830
3831/*
3832 * qla1280_abort_isp
3833 * Resets ISP and aborts all outstanding commands.
3834 *
3835 * Input:
3836 * ha = adapter block pointer.
3837 *
3838 * Returns:
3839 * 0 = success
3840 */
3841static int
3842qla1280_abort_isp(struct scsi_qla_host *ha)
3843{
3844 struct device_reg __iomem *reg = ha->iobase;
3845 struct srb *sp;
3846 int status = 0;
3847 int cnt;
3848 int bus;
3849
3850 ENTER("qla1280_abort_isp");
3851
3852 if (ha->flags.abort_isp_active || !ha->flags.online)
3853 goto out;
3854
3855 ha->flags.abort_isp_active = 1;
3856
3857 /* Disable ISP interrupts. */
3858 qla1280_disable_intrs(ha);
3859 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC);
3860 RD_REG_WORD(®->id_l);
3861
3862 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
3863 ha->host_no);
3864 /* Dequeue all commands in outstanding command list. */
3865 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3866 struct scsi_cmnd *cmd;
3867 sp = ha->outstanding_cmds[cnt];
3868 if (sp) {
3869 cmd = sp->cmd;
3870 CMD_RESULT(cmd) = DID_RESET << 16;
3871 CMD_HANDLE(cmd) = COMPLETED_HANDLE;
3872 ha->outstanding_cmds[cnt] = NULL;
3873 list_add_tail(&sp->list, &ha->done_q);
3874 }
3875 }
3876
3877 qla1280_done(ha);
3878
3879 status = qla1280_load_firmware(ha);
3880 if (status)
3881 goto out;
3882
3883 /* Setup adapter based on NVRAM parameters. */
3884 qla1280_nvram_config (ha);
3885
3886 status = qla1280_init_rings(ha);
3887 if (status)
3888 goto out;
3889
3890 /* Issue SCSI reset. */
3891 for (bus = 0; bus < ha->ports; bus++)
3892 qla1280_bus_reset(ha, bus);
3893
3894 ha->flags.abort_isp_active = 0;
3895 out:
3896 if (status) {
3897 printk(KERN_WARNING
3898 "qla1280: ISP error recovery failed, board disabled");
3899 qla1280_reset_adapter(ha);
3900 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
3901 }
3902
3903 LEAVE("qla1280_abort_isp");
3904 return status;
3905}
3906
3907
3908/*
3909 * qla1280_debounce_register
3910 * Debounce register.
3911 *
3912 * Input:
3913 * port = register address.
3914 *
3915 * Returns:
3916 * register value.
3917 */
3918static u16
3919qla1280_debounce_register(volatile u16 __iomem * addr)
3920{
3921 volatile u16 ret;
3922 volatile u16 ret2;
3923
3924 ret = RD_REG_WORD(addr);
3925 ret2 = RD_REG_WORD(addr);
3926
3927 if (ret == ret2)
3928 return ret;
3929
3930 do {
3931 cpu_relax();
3932 ret = RD_REG_WORD(addr);
3933 ret2 = RD_REG_WORD(addr);
3934 } while (ret != ret2);
3935
3936 return ret;
3937}
3938
3939
3940/************************************************************************
3941 * qla1280_check_for_dead_scsi_bus *
3942 * *
3943 * This routine checks for a dead SCSI bus *
3944 ************************************************************************/
3945#define SET_SXP_BANK 0x0100
3946#define SCSI_PHASE_INVALID 0x87FF
3947static int
3948qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
3949{
3950 uint16_t config_reg, scsi_control;
3951 struct device_reg __iomem *reg = ha->iobase;
3952
3953 if (ha->bus_settings[bus].scsi_bus_dead) {
3954 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC);
3955 config_reg = RD_REG_WORD(®->cfg_1);
3956 WRT_REG_WORD(®->cfg_1, SET_SXP_BANK);
3957 scsi_control = RD_REG_WORD(®->scsiControlPins);
3958 WRT_REG_WORD(®->cfg_1, config_reg);
3959 WRT_REG_WORD(®->host_cmd, HC_RELEASE_RISC);
3960
3961 if (scsi_control == SCSI_PHASE_INVALID) {
3962 ha->bus_settings[bus].scsi_bus_dead = 1;
3963 return 1; /* bus is dead */
3964 } else {
3965 ha->bus_settings[bus].scsi_bus_dead = 0;
3966 ha->bus_settings[bus].failed_reset_count = 0;
3967 }
3968 }
3969 return 0; /* bus is not dead */
3970}
3971
3972static void
3973qla1280_get_target_parameters(struct scsi_qla_host *ha,
3974 struct scsi_device *device)
3975{
3976 uint16_t mb[MAILBOX_REGISTER_COUNT];
3977 int bus, target, lun;
3978
3979 bus = device->channel;
3980 target = device->id;
3981 lun = device->lun;
3982
3983
3984 mb[0] = MBC_GET_TARGET_PARAMETERS;
3985 mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
3986 mb[1] <<= 8;
3987 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
3988 &mb[0]);
3989
3990 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
3991
3992 if (mb[3] != 0) {
3993 printk(" Sync: period %d, offset %d",
3994 (mb[3] & 0xff), (mb[3] >> 8));
3995 if (mb[2] & BIT_13)
3996 printk(", Wide");
3997 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
3998 printk(", DT");
3999 } else
4000 printk(" Async");
4001
4002 if (device->simple_tags)
4003 printk(", Tagged queuing: depth %d", device->queue_depth);
4004 printk("\n");
4005}
4006
4007
4008#if DEBUG_QLA1280
4009static void
4010__qla1280_dump_buffer(char *b, int size)
4011{
4012 int cnt;
4013 u8 c;
4014
4015 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah "
4016 "Bh Ch Dh Eh Fh\n");
4017 printk(KERN_DEBUG "---------------------------------------------"
4018 "------------------\n");
4019
4020 for (cnt = 0; cnt < size;) {
4021 c = *b++;
4022
4023 printk("0x%02x", c);
4024 cnt++;
4025 if (!(cnt % 16))
4026 printk("\n");
4027 else
4028 printk(" ");
4029 }
4030 if (cnt % 16)
4031 printk("\n");
4032}
4033
4034/**************************************************************************
4035 * ql1280_print_scsi_cmd
4036 *
4037 **************************************************************************/
4038static void
4039__qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
4040{
4041 struct scsi_qla_host *ha;
4042 struct Scsi_Host *host = CMD_HOST(cmd);
4043 struct srb *sp;
4044 /* struct scatterlist *sg; */
4045
4046 int i;
4047 ha = (struct scsi_qla_host *)host->hostdata;
4048
4049 sp = (struct srb *)CMD_SP(cmd);
4050 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
4051 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
4052 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
4053 CMD_CDBLEN(cmd));
4054 printk(" CDB = ");
4055 for (i = 0; i < cmd->cmd_len; i++) {
4056 printk("0x%02x ", cmd->cmnd[i]);
4057 }
4058 printk(" seg_cnt =%d\n", scsi_sg_count(cmd));
4059 printk(" request buffer=0x%p, request buffer len=0x%x\n",
4060 scsi_sglist(cmd), scsi_bufflen(cmd));
4061 /* if (cmd->use_sg)
4062 {
4063 sg = (struct scatterlist *) cmd->request_buffer;
4064 printk(" SG buffer: \n");
4065 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
4066 } */
4067 printk(" tag=%d, transfersize=0x%x \n",
4068 cmd->tag, cmd->transfersize);
4069 printk(" SP=0x%p\n", CMD_SP(cmd));
4070 printk(" underflow size = 0x%x, direction=0x%x\n",
4071 cmd->underflow, cmd->sc_data_direction);
4072}
4073
4074/**************************************************************************
4075 * ql1280_dump_device
4076 *
4077 **************************************************************************/
4078static void
4079ql1280_dump_device(struct scsi_qla_host *ha)
4080{
4081
4082 struct scsi_cmnd *cp;
4083 struct srb *sp;
4084 int i;
4085
4086 printk(KERN_DEBUG "Outstanding Commands on controller:\n");
4087
4088 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
4089 if ((sp = ha->outstanding_cmds[i]) == NULL)
4090 continue;
4091 if ((cp = sp->cmd) == NULL)
4092 continue;
4093 qla1280_print_scsi_cmd(1, cp);
4094 }
4095}
4096#endif
4097
4098
4099enum tokens {
4100 TOKEN_NVRAM,
4101 TOKEN_SYNC,
4102 TOKEN_WIDE,
4103 TOKEN_PPR,
4104 TOKEN_VERBOSE,
4105 TOKEN_DEBUG,
4106};
4107
4108struct setup_tokens {
4109 char *token;
4110 int val;
4111};
4112
4113static struct setup_tokens setup_token[] __initdata =
4114{
4115 { "nvram", TOKEN_NVRAM },
4116 { "sync", TOKEN_SYNC },
4117 { "wide", TOKEN_WIDE },
4118 { "ppr", TOKEN_PPR },
4119 { "verbose", TOKEN_VERBOSE },
4120 { "debug", TOKEN_DEBUG },
4121};
4122
4123
4124/**************************************************************************
4125 * qla1280_setup
4126 *
4127 * Handle boot parameters. This really needs to be changed so one
4128 * can specify per adapter parameters.
4129 **************************************************************************/
4130static int __init
4131qla1280_setup(char *s)
4132{
4133 char *cp, *ptr;
4134 unsigned long val;
4135 int toke;
4136
4137 cp = s;
4138
4139 while (cp && (ptr = strchr(cp, ':'))) {
4140 ptr++;
4141 if (!strcmp(ptr, "yes")) {
4142 val = 0x10000;
4143 ptr += 3;
4144 } else if (!strcmp(ptr, "no")) {
4145 val = 0;
4146 ptr += 2;
4147 } else
4148 val = simple_strtoul(ptr, &ptr, 0);
4149
4150 switch ((toke = qla1280_get_token(cp))) {
4151 case TOKEN_NVRAM:
4152 if (!val)
4153 driver_setup.no_nvram = 1;
4154 break;
4155 case TOKEN_SYNC:
4156 if (!val)
4157 driver_setup.no_sync = 1;
4158 else if (val != 0x10000)
4159 driver_setup.sync_mask = val;
4160 break;
4161 case TOKEN_WIDE:
4162 if (!val)
4163 driver_setup.no_wide = 1;
4164 else if (val != 0x10000)
4165 driver_setup.wide_mask = val;
4166 break;
4167 case TOKEN_PPR:
4168 if (!val)
4169 driver_setup.no_ppr = 1;
4170 else if (val != 0x10000)
4171 driver_setup.ppr_mask = val;
4172 break;
4173 case TOKEN_VERBOSE:
4174 qla1280_verbose = val;
4175 break;
4176 default:
4177 printk(KERN_INFO "qla1280: unknown boot option %s\n",
4178 cp);
4179 }
4180
4181 cp = strchr(ptr, ';');
4182 if (cp)
4183 cp++;
4184 else {
4185 break;
4186 }
4187 }
4188 return 1;
4189}
4190
4191
4192static int __init
4193qla1280_get_token(char *str)
4194{
4195 char *sep;
4196 long ret = -1;
4197 int i;
4198
4199 sep = strchr(str, ':');
4200
4201 if (sep) {
4202 for (i = 0; i < ARRAY_SIZE(setup_token); i++) {
4203 if (!strncmp(setup_token[i].token, str, (sep - str))) {
4204 ret = setup_token[i].val;
4205 break;
4206 }
4207 }
4208 }
4209
4210 return ret;
4211}
4212
4213
4214static struct scsi_host_template qla1280_driver_template = {
4215 .module = THIS_MODULE,
4216 .proc_name = "qla1280",
4217 .name = "Qlogic ISP 1280/12160",
4218 .info = qla1280_info,
4219 .slave_configure = qla1280_slave_configure,
4220 .queuecommand = qla1280_queuecommand,
4221 .eh_abort_handler = qla1280_eh_abort,
4222 .eh_device_reset_handler= qla1280_eh_device_reset,
4223 .eh_bus_reset_handler = qla1280_eh_bus_reset,
4224 .eh_host_reset_handler = qla1280_eh_adapter_reset,
4225 .bios_param = qla1280_biosparam,
4226 .can_queue = 0xfffff,
4227 .this_id = -1,
4228 .sg_tablesize = SG_ALL,
4229 .cmd_per_lun = 1,
4230 .use_clustering = ENABLE_CLUSTERING,
4231};
4232
4233
4234static int __devinit
4235qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4236{
4237 int devnum = id->driver_data;
4238 struct qla_boards *bdp = &ql1280_board_tbl[devnum];
4239 struct Scsi_Host *host;
4240 struct scsi_qla_host *ha;
4241 int error = -ENODEV;
4242
4243 /* Bypass all AMI SUBSYS VENDOR IDs */
4244 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
4245 printk(KERN_INFO
4246 "qla1280: Skipping AMI SubSys Vendor ID Chip\n");
4247 goto error;
4248 }
4249
4250 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
4251 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
4252
4253 if (pci_enable_device(pdev)) {
4254 printk(KERN_WARNING
4255 "qla1280: Failed to enabled pci device, aborting.\n");
4256 goto error;
4257 }
4258
4259 pci_set_master(pdev);
4260
4261 error = -ENOMEM;
4262 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
4263 if (!host) {
4264 printk(KERN_WARNING
4265 "qla1280: Failed to register host, aborting.\n");
4266 goto error_disable_device;
4267 }
4268
4269 ha = (struct scsi_qla_host *)host->hostdata;
4270 memset(ha, 0, sizeof(struct scsi_qla_host));
4271
4272 ha->pdev = pdev;
4273 ha->devnum = devnum; /* specifies microcode load address */
4274
4275#ifdef QLA_64BIT_PTR
4276 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
4277 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32))) {
4278 printk(KERN_WARNING "scsi(%li): Unable to set a "
4279 "suitable DMA mask - aborting\n", ha->host_no);
4280 error = -ENODEV;
4281 goto error_put_host;
4282 }
4283 } else
4284 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
4285 ha->host_no);
4286#else
4287 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32))) {
4288 printk(KERN_WARNING "scsi(%li): Unable to set a "
4289 "suitable DMA mask - aborting\n", ha->host_no);
4290 error = -ENODEV;
4291 goto error_put_host;
4292 }
4293#endif
4294
4295 ha->request_ring = pci_alloc_consistent(ha->pdev,
4296 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
4297 &ha->request_dma);
4298 if (!ha->request_ring) {
4299 printk(KERN_INFO "qla1280: Failed to get request memory\n");
4300 goto error_put_host;
4301 }
4302
4303 ha->response_ring = pci_alloc_consistent(ha->pdev,
4304 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
4305 &ha->response_dma);
4306 if (!ha->response_ring) {
4307 printk(KERN_INFO "qla1280: Failed to get response memory\n");
4308 goto error_free_request_ring;
4309 }
4310
4311 ha->ports = bdp->numPorts;
4312
4313 ha->host = host;
4314 ha->host_no = host->host_no;
4315
4316 host->irq = pdev->irq;
4317 host->max_channel = bdp->numPorts - 1;
4318 host->max_lun = MAX_LUNS - 1;
4319 host->max_id = MAX_TARGETS;
4320 host->max_sectors = 1024;
4321 host->unique_id = host->host_no;
4322
4323 error = -ENODEV;
4324
4325#if MEMORY_MAPPED_IO
4326 ha->mmpbase = pci_ioremap_bar(ha->pdev, 1);
4327 if (!ha->mmpbase) {
4328 printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
4329 goto error_free_response_ring;
4330 }
4331
4332 host->base = (unsigned long)ha->mmpbase;
4333 ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
4334#else
4335 host->io_port = pci_resource_start(ha->pdev, 0);
4336 if (!request_region(host->io_port, 0xff, "qla1280")) {
4337 printk(KERN_INFO "qla1280: Failed to reserve i/o region "
4338 "0x%04lx-0x%04lx - already in use\n",
4339 host->io_port, host->io_port + 0xff);
4340 goto error_free_response_ring;
4341 }
4342
4343 ha->iobase = (struct device_reg *)host->io_port;
4344#endif
4345
4346 INIT_LIST_HEAD(&ha->done_q);
4347
4348 /* Disable ISP interrupts. */
4349 qla1280_disable_intrs(ha);
4350
4351 if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED,
4352 "qla1280", ha)) {
4353 printk("qla1280 : Failed to reserve interrupt %d already "
4354 "in use\n", pdev->irq);
4355 goto error_release_region;
4356 }
4357
4358 /* load the F/W, read paramaters, and init the H/W */
4359 if (qla1280_initialize_adapter(ha)) {
4360 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
4361 goto error_free_irq;
4362 }
4363
4364 /* set our host ID (need to do something about our two IDs) */
4365 host->this_id = ha->bus_settings[0].id;
4366
4367 pci_set_drvdata(pdev, host);
4368
4369 error = scsi_add_host(host, &pdev->dev);
4370 if (error)
4371 goto error_disable_adapter;
4372 scsi_scan_host(host);
4373
4374 return 0;
4375
4376 error_disable_adapter:
4377 qla1280_disable_intrs(ha);
4378 error_free_irq:
4379 free_irq(pdev->irq, ha);
4380 error_release_region:
4381#if MEMORY_MAPPED_IO
4382 iounmap(ha->mmpbase);
4383#else
4384 release_region(host->io_port, 0xff);
4385#endif
4386 error_free_response_ring:
4387 pci_free_consistent(ha->pdev,
4388 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
4389 ha->response_ring, ha->response_dma);
4390 error_free_request_ring:
4391 pci_free_consistent(ha->pdev,
4392 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
4393 ha->request_ring, ha->request_dma);
4394 error_put_host:
4395 scsi_host_put(host);
4396 error_disable_device:
4397 pci_disable_device(pdev);
4398 error:
4399 return error;
4400}
4401
4402
4403static void __devexit
4404qla1280_remove_one(struct pci_dev *pdev)
4405{
4406 struct Scsi_Host *host = pci_get_drvdata(pdev);
4407 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
4408
4409 scsi_remove_host(host);
4410
4411 qla1280_disable_intrs(ha);
4412
4413 free_irq(pdev->irq, ha);
4414
4415#if MEMORY_MAPPED_IO
4416 iounmap(ha->mmpbase);
4417#else
4418 release_region(host->io_port, 0xff);
4419#endif
4420
4421 pci_free_consistent(ha->pdev,
4422 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4423 ha->request_ring, ha->request_dma);
4424 pci_free_consistent(ha->pdev,
4425 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4426 ha->response_ring, ha->response_dma);
4427
4428 pci_disable_device(pdev);
4429
4430 scsi_host_put(host);
4431}
4432
4433static struct pci_driver qla1280_pci_driver = {
4434 .name = "qla1280",
4435 .id_table = qla1280_pci_tbl,
4436 .probe = qla1280_probe_one,
4437 .remove = __devexit_p(qla1280_remove_one),
4438};
4439
4440static int __init
4441qla1280_init(void)
4442{
4443 if (sizeof(struct srb) > sizeof(struct scsi_pointer)) {
4444 printk(KERN_WARNING
4445 "qla1280: struct srb too big, aborting\n");
4446 return -EINVAL;
4447 }
4448
4449#ifdef MODULE
4450 /*
4451 * If we are called as a module, the qla1280 pointer may not be null
4452 * and it would point to our bootup string, just like on the lilo
4453 * command line. IF not NULL, then process this config string with
4454 * qla1280_setup
4455 *
4456 * Boot time Options
4457 * To add options at boot time add a line to your lilo.conf file like:
4458 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
4459 * which will result in the first four devices on the first two
4460 * controllers being set to a tagged queue depth of 32.
4461 */
4462 if (qla1280)
4463 qla1280_setup(qla1280);
4464#endif
4465
4466 return pci_register_driver(&qla1280_pci_driver);
4467}
4468
4469static void __exit
4470qla1280_exit(void)
4471{
4472 int i;
4473
4474 pci_unregister_driver(&qla1280_pci_driver);
4475 /* release any allocated firmware images */
4476 for (i = 0; i < QL_NUM_FW_IMAGES; i++) {
4477 if (qla1280_fw_tbl[i].fw) {
4478 release_firmware(qla1280_fw_tbl[i].fw);
4479 qla1280_fw_tbl[i].fw = NULL;
4480 }
4481 }
4482}
4483
4484module_init(qla1280_init);
4485module_exit(qla1280_exit);
4486
4487
4488MODULE_AUTHOR("Qlogic & Jes Sorensen");
4489MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
4490MODULE_LICENSE("GPL");
4491MODULE_FIRMWARE("qlogic/1040.bin");
4492MODULE_FIRMWARE("qlogic/1280.bin");
4493MODULE_FIRMWARE("qlogic/12160.bin");
4494MODULE_VERSION(QLA1280_VERSION);
4495
4496/*
4497 * Overrides for Emacs so that we almost follow Linus's tabbing style.
4498 * Emacs will notice this stuff at the end of the file and automatically
4499 * adjust the settings for this buffer only. This must remain at the end
4500 * of the file.
4501 * ---------------------------------------------------------------------------
4502 * Local variables:
4503 * c-basic-offset: 8
4504 * tab-width: 8
4505 * End:
4506 */
1// SPDX-License-Identifier: GPL-2.0-or-later
2/******************************************************************************
3* QLOGIC LINUX SOFTWARE
4*
5* QLogic QLA1280 (Ultra2) and QLA12160 (Ultra3) SCSI driver
6* Copyright (C) 2000 Qlogic Corporation (www.qlogic.com)
7* Copyright (C) 2001-2004 Jes Sorensen, Wild Open Source Inc.
8* Copyright (C) 2003-2004 Christoph Hellwig
9*
10******************************************************************************/
11#define QLA1280_VERSION "3.27.1"
12/*****************************************************************************
13 Revision History:
14 Rev 3.27.1, February 8, 2010, Michael Reed
15 - Retain firmware image for error recovery.
16 Rev 3.27, February 10, 2009, Michael Reed
17 - General code cleanup.
18 - Improve error recovery.
19 Rev 3.26, January 16, 2006 Jes Sorensen
20 - Ditch all < 2.6 support
21 Rev 3.25.1, February 10, 2005 Christoph Hellwig
22 - use pci_map_single to map non-S/G requests
23 - remove qla1280_proc_info
24 Rev 3.25, September 28, 2004, Christoph Hellwig
25 - add support for ISP1020/1040
26 - don't include "scsi.h" anymore for 2.6.x
27 Rev 3.24.4 June 7, 2004 Christoph Hellwig
28 - restructure firmware loading, cleanup initialization code
29 - prepare support for ISP1020/1040 chips
30 Rev 3.24.3 January 19, 2004, Jes Sorensen
31 - Handle PCI DMA mask settings correctly
32 - Correct order of error handling in probe_one, free_irq should not
33 be called if request_irq failed
34 Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez
35 - Big endian fixes (James)
36 - Remove bogus IOCB content on zero data transfer commands (Andrew)
37 Rev 3.24.1 January 5, 2004, Jes Sorensen
38 - Initialize completion queue to avoid OOPS on probe
39 - Handle interrupts during mailbox testing
40 Rev 3.24 November 17, 2003, Christoph Hellwig
41 - use struct list_head for completion queue
42 - avoid old Scsi_FOO typedefs
43 - cleanup 2.4 compat glue a bit
44 - use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h"
45 - make initialization for memory mapped vs port I/O more similar
46 - remove broken pci config space manipulation
47 - kill more cruft
48 - this is an almost perfect 2.6 scsi driver now! ;)
49 Rev 3.23.39 December 17, 2003, Jes Sorensen
50 - Delete completion queue from srb if mailbox command failed to
51 to avoid qla1280_done completeting qla1280_error_action's
52 obsolete context
53 - Reduce arguments for qla1280_done
54 Rev 3.23.38 October 18, 2003, Christoph Hellwig
55 - Convert to new-style hotplugable driver for 2.6
56 - Fix missing scsi_unregister/scsi_host_put on HBA removal
57 - Kill some more cruft
58 Rev 3.23.37 October 1, 2003, Jes Sorensen
59 - Make MMIO depend on CONFIG_X86_VISWS instead of yet another
60 random CONFIG option
61 - Clean up locking in probe path
62 Rev 3.23.36 October 1, 2003, Christoph Hellwig
63 - queuecommand only ever receives new commands - clear flags
64 - Reintegrate lost fixes from Linux 2.5
65 Rev 3.23.35 August 14, 2003, Jes Sorensen
66 - Build against 2.6
67 Rev 3.23.34 July 23, 2003, Jes Sorensen
68 - Remove pointless TRUE/FALSE macros
69 - Clean up vchan handling
70 Rev 3.23.33 July 3, 2003, Jes Sorensen
71 - Don't define register access macros before define determining MMIO.
72 This just happened to work out on ia64 but not elsewhere.
73 - Don't try and read from the card while it is in reset as
74 it won't respond and causes an MCA
75 Rev 3.23.32 June 23, 2003, Jes Sorensen
76 - Basic support for boot time arguments
77 Rev 3.23.31 June 8, 2003, Jes Sorensen
78 - Reduce boot time messages
79 Rev 3.23.30 June 6, 2003, Jes Sorensen
80 - Do not enable sync/wide/ppr before it has been determined
81 that the target device actually supports it
82 - Enable DMA arbitration for multi channel controllers
83 Rev 3.23.29 June 3, 2003, Jes Sorensen
84 - Port to 2.5.69
85 Rev 3.23.28 June 3, 2003, Jes Sorensen
86 - Eliminate duplicate marker commands on bus resets
87 - Handle outstanding commands appropriately on bus/device resets
88 Rev 3.23.27 May 28, 2003, Jes Sorensen
89 - Remove bogus input queue code, let the Linux SCSI layer do the work
90 - Clean up NVRAM handling, only read it once from the card
91 - Add a number of missing default nvram parameters
92 Rev 3.23.26 Beta May 28, 2003, Jes Sorensen
93 - Use completion queue for mailbox commands instead of busy wait
94 Rev 3.23.25 Beta May 27, 2003, James Bottomley
95 - Migrate to use new error handling code
96 Rev 3.23.24 Beta May 21, 2003, James Bottomley
97 - Big endian support
98 - Cleanup data direction code
99 Rev 3.23.23 Beta May 12, 2003, Jes Sorensen
100 - Switch to using MMIO instead of PIO
101 Rev 3.23.22 Beta April 15, 2003, Jes Sorensen
102 - Fix PCI parity problem with 12160 during reset.
103 Rev 3.23.21 Beta April 14, 2003, Jes Sorensen
104 - Use pci_map_page()/pci_unmap_page() instead of map_single version.
105 Rev 3.23.20 Beta April 9, 2003, Jes Sorensen
106 - Remove < 2.4.x support
107 - Introduce HOST_LOCK to make the spin lock changes portable.
108 - Remove a bunch of idiotic and unnecessary typedef's
109 - Kill all leftovers of target-mode support which never worked anyway
110 Rev 3.23.19 Beta April 11, 2002, Linus Torvalds
111 - Do qla1280_pci_config() before calling request_irq() and
112 request_region()
113 - Use pci_dma_hi32() to handle upper word of DMA addresses instead
114 of large shifts
115 - Hand correct arguments to free_irq() in case of failure
116 Rev 3.23.18 Beta April 11, 2002, Jes Sorensen
117 - Run source through Lindent and clean up the output
118 Rev 3.23.17 Beta April 11, 2002, Jes Sorensen
119 - Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32
120 Rev 3.23.16 Beta March 19, 2002, Jes Sorensen
121 - Rely on mailbox commands generating interrupts - do not
122 run qla1280_isr() from ql1280_mailbox_command()
123 - Remove device_reg_t
124 - Integrate ql12160_set_target_parameters() with 1280 version
125 - Make qla1280_setup() non static
126 - Do not call qla1280_check_for_dead_scsi_bus() on every I/O request
127 sent to the card - this command pauses the firmware!!!
128 Rev 3.23.15 Beta March 19, 2002, Jes Sorensen
129 - Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions
130 - Remove a pile of pointless and confusing (srb_t **) and
131 (scsi_lu_t *) typecasts
132 - Explicit mark that we do not use the new error handling (for now)
133 - Remove scsi_qla_host_t and use 'struct' instead
134 - Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled,
135 pci_64bit_slot flags which weren't used for anything anyway
136 - Grab host->host_lock while calling qla1280_isr() from abort()
137 - Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we
138 do not need to save/restore flags in the interrupt handler
139 - Enable interrupts early (before any mailbox access) in preparation
140 for cleaning up the mailbox handling
141 Rev 3.23.14 Beta March 14, 2002, Jes Sorensen
142 - Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace
143 it with proper use of dprintk().
144 - Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take
145 a debug level argument to determine if data is to be printed
146 - Add KERN_* info to printk()
147 Rev 3.23.13 Beta March 14, 2002, Jes Sorensen
148 - Significant cosmetic cleanups
149 - Change debug code to use dprintk() and remove #if mess
150 Rev 3.23.12 Beta March 13, 2002, Jes Sorensen
151 - More cosmetic cleanups, fix places treating return as function
152 - use cpu_relax() in qla1280_debounce_register()
153 Rev 3.23.11 Beta March 13, 2002, Jes Sorensen
154 - Make it compile under 2.5.5
155 Rev 3.23.10 Beta October 1, 2001, Jes Sorensen
156 - Do no typecast short * to long * in QL1280BoardTbl, this
157 broke miserably on big endian boxes
158 Rev 3.23.9 Beta September 30, 2001, Jes Sorensen
159 - Remove pre 2.2 hack for checking for reentrance in interrupt handler
160 - Make data types used to receive from SCSI_{BUS,TCN,LUN}_32
161 unsigned int to match the types from struct scsi_cmnd
162 Rev 3.23.8 Beta September 29, 2001, Jes Sorensen
163 - Remove bogus timer_t typedef from qla1280.h
164 - Remove obsolete pre 2.2 PCI setup code, use proper #define's
165 for PCI_ values, call pci_set_master()
166 - Fix memleak of qla1280_buffer on module unload
167 - Only compile module parsing code #ifdef MODULE - should be
168 changed to use individual MODULE_PARM's later
169 - Remove dummy_buffer that was never modified nor printed
170 - ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove
171 #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls
172 - Remove \r from print statements, this is Linux, not DOS
173 - Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK}
174 dummy macros
175 - Remove C++ compile hack in header file as Linux driver are not
176 supposed to be compiled as C++
177 - Kill MS_64BITS macro as it makes the code more readable
178 - Remove unnecessary flags.in_interrupts bit
179 Rev 3.23.7 Beta August 20, 2001, Jes Sorensen
180 - Dont' check for set flags on q->q_flag one by one in qla1280_next()
181 - Check whether the interrupt was generated by the QLA1280 before
182 doing any processing
183 - qla1280_status_entry(): Only zero out part of sense_buffer that
184 is not being copied into
185 - Remove more superflouous typecasts
186 - qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy()
187 Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel
188 - Don't walk the entire list in qla1280_putq_t() just to directly
189 grab the pointer to the last element afterwards
190 Rev 3.23.5 Beta August 9, 2001, Jes Sorensen
191 - Don't use IRQF_DISABLED, it's use is deprecated for this kinda driver
192 Rev 3.23.4 Beta August 8, 2001, Jes Sorensen
193 - Set dev->max_sectors to 1024
194 Rev 3.23.3 Beta August 6, 2001, Jes Sorensen
195 - Provide compat macros for pci_enable_device(), pci_find_subsys()
196 and scsi_set_pci_device()
197 - Call scsi_set_pci_device() for all devices
198 - Reduce size of kernel version dependent device probe code
199 - Move duplicate probe/init code to separate function
200 - Handle error if qla1280_mem_alloc() fails
201 - Kill OFFSET() macro and use Linux's PCI definitions instead
202 - Kill private structure defining PCI config space (struct config_reg)
203 - Only allocate I/O port region if not in MMIO mode
204 - Remove duplicate (unused) sanity check of sife of srb_t
205 Rev 3.23.2 Beta August 6, 2001, Jes Sorensen
206 - Change home-brew memset() implementations to use memset()
207 - Remove all references to COMTRACE() - accessing a PC's COM2 serial
208 port directly is not legal under Linux.
209 Rev 3.23.1 Beta April 24, 2001, Jes Sorensen
210 - Remove pre 2.2 kernel support
211 - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat)
212 - Fix MMIO access to use readl/writel instead of directly
213 dereferencing pointers
214 - Nuke MSDOS debugging code
215 - Change true/false data types to int from uint8_t
216 - Use int for counters instead of uint8_t etc.
217 - Clean up size & byte order conversion macro usage
218 Rev 3.23 Beta January 11, 2001 BN Qlogic
219 - Added check of device_id when handling non
220 QLA12160s during detect().
221 Rev 3.22 Beta January 5, 2001 BN Qlogic
222 - Changed queue_task() to schedule_task()
223 for kernels 2.4.0 and higher.
224 Note: 2.4.0-testxx kernels released prior to
225 the actual 2.4.0 kernel release on January 2001
226 will get compile/link errors with schedule_task().
227 Please update your kernel to released 2.4.0 level,
228 or comment lines in this file flagged with 3.22
229 to resolve compile/link error of schedule_task().
230 - Added -DCONFIG_SMP in addition to -D__SMP__
231 in Makefile for 2.4.0 builds of driver as module.
232 Rev 3.21 Beta January 4, 2001 BN Qlogic
233 - Changed criteria of 64/32 Bit mode of HBA
234 operation according to BITS_PER_LONG rather
235 than HBA's NVRAM setting of >4Gig memory bit;
236 so that the HBA auto-configures without the need
237 to setup each system individually.
238 Rev 3.20 Beta December 5, 2000 BN Qlogic
239 - Added priority handling to IA-64 onboard SCSI
240 ISP12160 chip for kernels greater than 2.3.18.
241 - Added irqrestore for qla1280_intr_handler.
242 - Enabled /proc/scsi/qla1280 interface.
243 - Clear /proc/scsi/qla1280 counters in detect().
244 Rev 3.19 Beta October 13, 2000 BN Qlogic
245 - Declare driver_template for new kernel
246 (2.4.0 and greater) scsi initialization scheme.
247 - Update /proc/scsi entry for 2.3.18 kernels and
248 above as qla1280
249 Rev 3.18 Beta October 10, 2000 BN Qlogic
250 - Changed scan order of adapters to map
251 the QLA12160 followed by the QLA1280.
252 Rev 3.17 Beta September 18, 2000 BN Qlogic
253 - Removed warnings for 32 bit 2.4.x compiles
254 - Corrected declared size for request and response
255 DMA addresses that are kept in each ha
256 Rev. 3.16 Beta August 25, 2000 BN Qlogic
257 - Corrected 64 bit addressing issue on IA-64
258 where the upper 32 bits were not properly
259 passed to the RISC engine.
260 Rev. 3.15 Beta August 22, 2000 BN Qlogic
261 - Modified qla1280_setup_chip to properly load
262 ISP firmware for greater that 4 Gig memory on IA-64
263 Rev. 3.14 Beta August 16, 2000 BN Qlogic
264 - Added setting of dma_mask to full 64 bit
265 if flags.enable_64bit_addressing is set in NVRAM
266 Rev. 3.13 Beta August 16, 2000 BN Qlogic
267 - Use new PCI DMA mapping APIs for 2.4.x kernel
268 Rev. 3.12 July 18, 2000 Redhat & BN Qlogic
269 - Added check of pci_enable_device to detect() for 2.3.x
270 - Use pci_resource_start() instead of
271 pdev->resource[0].start in detect() for 2.3.x
272 - Updated driver version
273 Rev. 3.11 July 14, 2000 BN Qlogic
274 - Updated SCSI Firmware to following versions:
275 qla1x80: 8.13.08
276 qla1x160: 10.04.08
277 - Updated driver version to 3.11
278 Rev. 3.10 June 23, 2000 BN Qlogic
279 - Added filtering of AMI SubSys Vendor ID devices
280 Rev. 3.9
281 - DEBUG_QLA1280 undefined and new version BN Qlogic
282 Rev. 3.08b May 9, 2000 MD Dell
283 - Added logic to check against AMI subsystem vendor ID
284 Rev. 3.08 May 4, 2000 DG Qlogic
285 - Added logic to check for PCI subsystem ID.
286 Rev. 3.07 Apr 24, 2000 DG & BN Qlogic
287 - Updated SCSI Firmware to following versions:
288 qla12160: 10.01.19
289 qla1280: 8.09.00
290 Rev. 3.06 Apr 12, 2000 DG & BN Qlogic
291 - Internal revision; not released
292 Rev. 3.05 Mar 28, 2000 DG & BN Qlogic
293 - Edit correction for virt_to_bus and PROC.
294 Rev. 3.04 Mar 28, 2000 DG & BN Qlogic
295 - Merge changes from ia64 port.
296 Rev. 3.03 Mar 28, 2000 BN Qlogic
297 - Increase version to reflect new code drop with compile fix
298 of issue with inclusion of linux/spinlock for 2.3 kernels
299 Rev. 3.02 Mar 15, 2000 BN Qlogic
300 - Merge qla1280_proc_info from 2.10 code base
301 Rev. 3.01 Feb 10, 2000 BN Qlogic
302 - Corrected code to compile on a 2.2.x kernel.
303 Rev. 3.00 Jan 17, 2000 DG Qlogic
304 - Added 64-bit support.
305 Rev. 2.07 Nov 9, 1999 DG Qlogic
306 - Added new routine to set target parameters for ISP12160.
307 Rev. 2.06 Sept 10, 1999 DG Qlogic
308 - Added support for ISP12160 Ultra 3 chip.
309 Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont
310 - Modified code to remove errors generated when compiling with
311 Cygnus IA64 Compiler.
312 - Changed conversion of pointers to unsigned longs instead of integers.
313 - Changed type of I/O port variables from uint32_t to unsigned long.
314 - Modified OFFSET macro to work with 64-bit as well as 32-bit.
315 - Changed sprintf and printk format specifiers for pointers to %p.
316 - Changed some int to long type casts where needed in sprintf & printk.
317 - Added l modifiers to sprintf and printk format specifiers for longs.
318 - Removed unused local variables.
319 Rev. 1.20 June 8, 1999 DG, Qlogic
320 Changes to support RedHat release 6.0 (kernel 2.2.5).
321 - Added SCSI exclusive access lock (io_request_lock) when accessing
322 the adapter.
323 - Added changes for the new LINUX interface template. Some new error
324 handling routines have been added to the template, but for now we
325 will use the old ones.
326 - Initial Beta Release.
327*****************************************************************************/
328
329
330#include <linux/module.h>
331
332#include <linux/types.h>
333#include <linux/string.h>
334#include <linux/errno.h>
335#include <linux/kernel.h>
336#include <linux/ioport.h>
337#include <linux/delay.h>
338#include <linux/timer.h>
339#include <linux/pci.h>
340#include <linux/proc_fs.h>
341#include <linux/stat.h>
342#include <linux/pci_ids.h>
343#include <linux/interrupt.h>
344#include <linux/init.h>
345#include <linux/dma-mapping.h>
346#include <linux/firmware.h>
347
348#include <asm/io.h>
349#include <asm/irq.h>
350#include <asm/byteorder.h>
351#include <asm/processor.h>
352#include <asm/types.h>
353
354#include <scsi/scsi.h>
355#include <scsi/scsi_cmnd.h>
356#include <scsi/scsi_device.h>
357#include <scsi/scsi_host.h>
358#include <scsi/scsi_tcq.h>
359
360
361/*
362 * Compile time Options:
363 * 0 - Disable and 1 - Enable
364 */
365#define DEBUG_QLA1280_INTR 0
366#define DEBUG_PRINT_NVRAM 0
367#define DEBUG_QLA1280 0
368
369#define MEMORY_MAPPED_IO 1
370
371#include "qla1280.h"
372
373#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
374#define QLA_64BIT_PTR 1
375#endif
376
377#define NVRAM_DELAY() udelay(500) /* 2 microseconds */
378
379#define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020)
380#define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \
381 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240)
382#define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \
383 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160)
384
385
386static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *);
387static void qla1280_remove_one(struct pci_dev *);
388
389/*
390 * QLogic Driver Support Function Prototypes.
391 */
392static void qla1280_done(struct scsi_qla_host *);
393static int qla1280_get_token(char *);
394static int qla1280_setup(char *s) __init;
395
396/*
397 * QLogic ISP1280 Hardware Support Function Prototypes.
398 */
399static int qla1280_load_firmware(struct scsi_qla_host *);
400static int qla1280_init_rings(struct scsi_qla_host *);
401static int qla1280_nvram_config(struct scsi_qla_host *);
402static int qla1280_mailbox_command(struct scsi_qla_host *,
403 uint8_t, uint16_t *);
404static int qla1280_bus_reset(struct scsi_qla_host *, int);
405static int qla1280_device_reset(struct scsi_qla_host *, int, int);
406static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int);
407static int qla1280_abort_isp(struct scsi_qla_host *);
408#ifdef QLA_64BIT_PTR
409static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *);
410#else
411static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *);
412#endif
413static void qla1280_nv_write(struct scsi_qla_host *, uint16_t);
414static void qla1280_poll(struct scsi_qla_host *);
415static void qla1280_reset_adapter(struct scsi_qla_host *);
416static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8);
417static void qla1280_isp_cmd(struct scsi_qla_host *);
418static void qla1280_isr(struct scsi_qla_host *, struct list_head *);
419static void qla1280_rst_aen(struct scsi_qla_host *);
420static void qla1280_status_entry(struct scsi_qla_host *, struct response *,
421 struct list_head *);
422static void qla1280_error_entry(struct scsi_qla_host *, struct response *,
423 struct list_head *);
424static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t);
425static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t);
426static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *);
427static request_t *qla1280_req_pkt(struct scsi_qla_host *);
428static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *,
429 unsigned int);
430static void qla1280_get_target_parameters(struct scsi_qla_host *,
431 struct scsi_device *);
432static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int);
433
434
435static struct qla_driver_setup driver_setup;
436
437/*
438 * convert scsi data direction to request_t control flags
439 */
440static inline uint16_t
441qla1280_data_direction(struct scsi_cmnd *cmnd)
442{
443 switch(cmnd->sc_data_direction) {
444 case DMA_FROM_DEVICE:
445 return BIT_5;
446 case DMA_TO_DEVICE:
447 return BIT_6;
448 case DMA_BIDIRECTIONAL:
449 return BIT_5 | BIT_6;
450 /*
451 * We could BUG() on default here if one of the four cases aren't
452 * met, but then again if we receive something like that from the
453 * SCSI layer we have more serious problems. This shuts up GCC.
454 */
455 case DMA_NONE:
456 default:
457 return 0;
458 }
459}
460
461#if DEBUG_QLA1280
462static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd);
463static void __qla1280_dump_buffer(char *, int);
464#endif
465
466
467/*
468 * insmod needs to find the variable and make it point to something
469 */
470#ifdef MODULE
471static char *qla1280;
472
473/* insmod qla1280 options=verbose" */
474module_param(qla1280, charp, 0);
475#else
476__setup("qla1280=", qla1280_setup);
477#endif
478
479
480#define CMD_CDBLEN(Cmnd) Cmnd->cmd_len
481#define CMD_CDBP(Cmnd) Cmnd->cmnd
482#define CMD_SNSP(Cmnd) Cmnd->sense_buffer
483#define CMD_SNSLEN(Cmnd) SCSI_SENSE_BUFFERSIZE
484#define CMD_RESULT(Cmnd) Cmnd->result
485#define CMD_HANDLE(Cmnd) Cmnd->host_scribble
486
487#define CMD_HOST(Cmnd) Cmnd->device->host
488#define SCSI_BUS_32(Cmnd) Cmnd->device->channel
489#define SCSI_TCN_32(Cmnd) Cmnd->device->id
490#define SCSI_LUN_32(Cmnd) Cmnd->device->lun
491
492
493/*****************************************/
494/* ISP Boards supported by this driver */
495/*****************************************/
496
497struct qla_boards {
498 char *name; /* Board ID String */
499 int numPorts; /* Number of SCSI ports */
500 int fw_index; /* index into qla1280_fw_tbl for firmware */
501};
502
503/* NOTE: the last argument in each entry is used to index ql1280_board_tbl */
504static struct pci_device_id qla1280_pci_tbl[] = {
505 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160,
506 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
507 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
508 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
509 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080,
510 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
511 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240,
512 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
513 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280,
514 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
515 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160,
516 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
517 {0,}
518};
519MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl);
520
521static DEFINE_MUTEX(qla1280_firmware_mutex);
522
523struct qla_fw {
524 char *fwname;
525 const struct firmware *fw;
526};
527
528#define QL_NUM_FW_IMAGES 3
529
530static struct qla_fw qla1280_fw_tbl[QL_NUM_FW_IMAGES] = {
531 {"qlogic/1040.bin", NULL}, /* image 0 */
532 {"qlogic/1280.bin", NULL}, /* image 1 */
533 {"qlogic/12160.bin", NULL}, /* image 2 */
534};
535
536/* NOTE: Order of boards in this table must match order in qla1280_pci_tbl */
537static struct qla_boards ql1280_board_tbl[] = {
538 {.name = "QLA12160", .numPorts = 2, .fw_index = 2},
539 {.name = "QLA1040" , .numPorts = 1, .fw_index = 0},
540 {.name = "QLA1080" , .numPorts = 1, .fw_index = 1},
541 {.name = "QLA1240" , .numPorts = 2, .fw_index = 1},
542 {.name = "QLA1280" , .numPorts = 2, .fw_index = 1},
543 {.name = "QLA10160", .numPorts = 1, .fw_index = 2},
544 {.name = " ", .numPorts = 0, .fw_index = -1},
545};
546
547static int qla1280_verbose = 1;
548
549#if DEBUG_QLA1280
550static int ql_debug_level = 1;
551#define dprintk(level, format, a...) \
552 do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0)
553#define qla1280_dump_buffer(level, buf, size) \
554 if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size)
555#define qla1280_print_scsi_cmd(level, cmd) \
556 if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd)
557#else
558#define ql_debug_level 0
559#define dprintk(level, format, a...) do{}while(0)
560#define qla1280_dump_buffer(a, b, c) do{}while(0)
561#define qla1280_print_scsi_cmd(a, b) do{}while(0)
562#endif
563
564#define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x);
565#define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x);
566#define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x);
567#define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x);
568
569
570static int qla1280_read_nvram(struct scsi_qla_host *ha)
571{
572 uint16_t *wptr;
573 uint8_t chksum;
574 int cnt, i;
575 struct nvram *nv;
576
577 ENTER("qla1280_read_nvram");
578
579 if (driver_setup.no_nvram)
580 return 1;
581
582 printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no);
583
584 wptr = (uint16_t *)&ha->nvram;
585 nv = &ha->nvram;
586 chksum = 0;
587 for (cnt = 0; cnt < 3; cnt++) {
588 *wptr = qla1280_get_nvram_word(ha, cnt);
589 chksum += *wptr & 0xff;
590 chksum += (*wptr >> 8) & 0xff;
591 wptr++;
592 }
593
594 if (nv->id0 != 'I' || nv->id1 != 'S' ||
595 nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) {
596 dprintk(2, "Invalid nvram ID or version!\n");
597 chksum = 1;
598 } else {
599 for (; cnt < sizeof(struct nvram); cnt++) {
600 *wptr = qla1280_get_nvram_word(ha, cnt);
601 chksum += *wptr & 0xff;
602 chksum += (*wptr >> 8) & 0xff;
603 wptr++;
604 }
605 }
606
607 dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x"
608 " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3,
609 nv->version);
610
611
612 if (chksum) {
613 if (!driver_setup.no_nvram)
614 printk(KERN_WARNING "scsi(%ld): Unable to identify or "
615 "validate NVRAM checksum, using default "
616 "settings\n", ha->host_no);
617 ha->nvram_valid = 0;
618 } else
619 ha->nvram_valid = 1;
620
621 /* The firmware interface is, um, interesting, in that the
622 * actual firmware image on the chip is little endian, thus,
623 * the process of taking that image to the CPU would end up
624 * little endian. However, the firmware interface requires it
625 * to be read a word (two bytes) at a time.
626 *
627 * The net result of this would be that the word (and
628 * doubleword) quantities in the firmware would be correct, but
629 * the bytes would be pairwise reversed. Since most of the
630 * firmware quantities are, in fact, bytes, we do an extra
631 * le16_to_cpu() in the firmware read routine.
632 *
633 * The upshot of all this is that the bytes in the firmware
634 * are in the correct places, but the 16 and 32 bit quantities
635 * are still in little endian format. We fix that up below by
636 * doing extra reverses on them */
637 nv->isp_parameter = cpu_to_le16(nv->isp_parameter);
638 nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w);
639 for(i = 0; i < MAX_BUSES; i++) {
640 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout);
641 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth);
642 }
643 dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n");
644 LEAVE("qla1280_read_nvram");
645
646 return chksum;
647}
648
649/**************************************************************************
650 * qla1280_info
651 * Return a string describing the driver.
652 **************************************************************************/
653static const char *
654qla1280_info(struct Scsi_Host *host)
655{
656 static char qla1280_scsi_name_buffer[125];
657 char *bp;
658 struct scsi_qla_host *ha;
659 struct qla_boards *bdp;
660
661 bp = &qla1280_scsi_name_buffer[0];
662 ha = (struct scsi_qla_host *)host->hostdata;
663 bdp = &ql1280_board_tbl[ha->devnum];
664 memset(bp, 0, sizeof(qla1280_scsi_name_buffer));
665
666 sprintf (bp,
667 "QLogic %s PCI to SCSI Host Adapter\n"
668 " Firmware version: %2d.%02d.%02d, Driver version %s",
669 &bdp->name[0], ha->fwver1, ha->fwver2, ha->fwver3,
670 QLA1280_VERSION);
671 return bp;
672}
673
674/**************************************************************************
675 * qla1280_queuecommand
676 * Queue a command to the controller.
677 *
678 * Note:
679 * The mid-level driver tries to ensures that queuecommand never gets invoked
680 * concurrently with itself or the interrupt handler (although the
681 * interrupt handler may call this routine as part of request-completion
682 * handling). Unfortunately, it sometimes calls the scheduler in interrupt
683 * context which is a big NO! NO!.
684 **************************************************************************/
685static int qla1280_queuecommand_lck(struct scsi_cmnd *cmd)
686{
687 struct Scsi_Host *host = cmd->device->host;
688 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
689 struct srb *sp = scsi_cmd_priv(cmd);
690 int status;
691
692 sp->cmd = cmd;
693 sp->flags = 0;
694 sp->wait = NULL;
695 CMD_HANDLE(cmd) = (unsigned char *)NULL;
696
697 qla1280_print_scsi_cmd(5, cmd);
698
699#ifdef QLA_64BIT_PTR
700 /*
701 * Using 64 bit commands if the PCI bridge doesn't support it is a
702 * bit wasteful, however this should really only happen if one's
703 * PCI controller is completely broken, like the BCM1250. For
704 * sane hardware this is not an issue.
705 */
706 status = qla1280_64bit_start_scsi(ha, sp);
707#else
708 status = qla1280_32bit_start_scsi(ha, sp);
709#endif
710 return status;
711}
712
713static DEF_SCSI_QCMD(qla1280_queuecommand)
714
715enum action {
716 ABORT_COMMAND,
717 DEVICE_RESET,
718 BUS_RESET,
719};
720
721
722static void qla1280_mailbox_timeout(struct timer_list *t)
723{
724 struct scsi_qla_host *ha = from_timer(ha, t, mailbox_timer);
725 struct device_reg __iomem *reg;
726 reg = ha->iobase;
727
728 ha->mailbox_out[0] = RD_REG_WORD(®->mailbox0);
729 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
730 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
731 RD_REG_WORD(®->ictrl), RD_REG_WORD(®->istatus));
732 complete(ha->mailbox_wait);
733}
734
735static int
736_qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp,
737 struct completion *wait)
738{
739 int status = FAILED;
740 struct scsi_cmnd *cmd = sp->cmd;
741
742 spin_unlock_irq(ha->host->host_lock);
743 wait_for_completion_timeout(wait, 4*HZ);
744 spin_lock_irq(ha->host->host_lock);
745 sp->wait = NULL;
746 if(CMD_HANDLE(cmd) == COMPLETED_HANDLE) {
747 status = SUCCESS;
748 scsi_done(cmd);
749 }
750 return status;
751}
752
753static int
754qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp)
755{
756 DECLARE_COMPLETION_ONSTACK(wait);
757
758 sp->wait = &wait;
759 return _qla1280_wait_for_single_command(ha, sp, &wait);
760}
761
762static int
763qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target)
764{
765 int cnt;
766 int status;
767 struct srb *sp;
768 struct scsi_cmnd *cmd;
769
770 status = SUCCESS;
771
772 /*
773 * Wait for all commands with the designated bus/target
774 * to be completed by the firmware
775 */
776 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
777 sp = ha->outstanding_cmds[cnt];
778 if (sp) {
779 cmd = sp->cmd;
780
781 if (bus >= 0 && SCSI_BUS_32(cmd) != bus)
782 continue;
783 if (target >= 0 && SCSI_TCN_32(cmd) != target)
784 continue;
785
786 status = qla1280_wait_for_single_command(ha, sp);
787 if (status == FAILED)
788 break;
789 }
790 }
791 return status;
792}
793
794/**************************************************************************
795 * qla1280_error_action
796 * The function will attempt to perform a specified error action and
797 * wait for the results (or time out).
798 *
799 * Input:
800 * cmd = Linux SCSI command packet of the command that cause the
801 * bus reset.
802 * action = error action to take (see action_t)
803 *
804 * Returns:
805 * SUCCESS or FAILED
806 *
807 **************************************************************************/
808static int
809qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
810{
811 struct scsi_qla_host *ha;
812 int bus, target, lun;
813 struct srb *sp;
814 int i, found;
815 int result=FAILED;
816 int wait_for_bus=-1;
817 int wait_for_target = -1;
818 DECLARE_COMPLETION_ONSTACK(wait);
819
820 ENTER("qla1280_error_action");
821
822 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
823 sp = scsi_cmd_priv(cmd);
824 bus = SCSI_BUS_32(cmd);
825 target = SCSI_TCN_32(cmd);
826 lun = SCSI_LUN_32(cmd);
827
828 dprintk(4, "error_action %i, istatus 0x%04x\n", action,
829 RD_REG_WORD(&ha->iobase->istatus));
830
831 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
832 RD_REG_WORD(&ha->iobase->host_cmd),
833 RD_REG_WORD(&ha->iobase->ictrl), jiffies);
834
835 if (qla1280_verbose)
836 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
837 "Handle=0x%p, action=0x%x\n",
838 ha->host_no, cmd, CMD_HANDLE(cmd), action);
839
840 /*
841 * Check to see if we have the command in the outstanding_cmds[]
842 * array. If not then it must have completed before this error
843 * action was initiated. If the error_action isn't ABORT_COMMAND
844 * then the driver must proceed with the requested action.
845 */
846 found = -1;
847 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
848 if (sp == ha->outstanding_cmds[i]) {
849 found = i;
850 sp->wait = &wait; /* we'll wait for it to complete */
851 break;
852 }
853 }
854
855 if (found < 0) { /* driver doesn't have command */
856 result = SUCCESS;
857 if (qla1280_verbose) {
858 printk(KERN_INFO
859 "scsi(%ld:%d:%d:%d): specified command has "
860 "already completed.\n", ha->host_no, bus,
861 target, lun);
862 }
863 }
864
865 switch (action) {
866
867 case ABORT_COMMAND:
868 dprintk(1, "qla1280: RISC aborting command\n");
869 /*
870 * The abort might fail due to race when the host_lock
871 * is released to issue the abort. As such, we
872 * don't bother to check the return status.
873 */
874 if (found >= 0)
875 qla1280_abort_command(ha, sp, found);
876 break;
877
878 case DEVICE_RESET:
879 if (qla1280_verbose)
880 printk(KERN_INFO
881 "scsi(%ld:%d:%d:%d): Queueing device reset "
882 "command.\n", ha->host_no, bus, target, lun);
883 if (qla1280_device_reset(ha, bus, target) == 0) {
884 /* issued device reset, set wait conditions */
885 wait_for_bus = bus;
886 wait_for_target = target;
887 }
888 break;
889
890 case BUS_RESET:
891 if (qla1280_verbose)
892 printk(KERN_INFO "qla1280(%ld:%d): Issued bus "
893 "reset.\n", ha->host_no, bus);
894 if (qla1280_bus_reset(ha, bus) == 0) {
895 /* issued bus reset, set wait conditions */
896 wait_for_bus = bus;
897 }
898 break;
899
900 default:
901 dprintk(1, "RESET invalid action %d\n", action);
902 return FAILED;
903 }
904
905 /*
906 * At this point, the host_lock has been released and retaken
907 * by the issuance of the mailbox command.
908 * Wait for the command passed in by the mid-layer if it
909 * was found by the driver. It might have been returned
910 * between eh recovery steps, hence the check of the "found"
911 * variable.
912 */
913
914 if (found >= 0)
915 result = _qla1280_wait_for_single_command(ha, sp, &wait);
916
917 if (action == ABORT_COMMAND && result != SUCCESS) {
918 printk(KERN_WARNING
919 "scsi(%li:%i:%i:%i): "
920 "Unable to abort command!\n",
921 ha->host_no, bus, target, lun);
922 }
923
924 /*
925 * If the command passed in by the mid-layer has been
926 * returned by the board, then wait for any additional
927 * commands which are supposed to complete based upon
928 * the error action.
929 *
930 * All commands are unconditionally returned during a
931 * call to qla1280_abort_isp(), ADAPTER_RESET. No need
932 * to wait for them.
933 */
934 if (result == SUCCESS && wait_for_bus >= 0) {
935 result = qla1280_wait_for_pending_commands(ha,
936 wait_for_bus, wait_for_target);
937 }
938
939 dprintk(1, "RESET returning %d\n", result);
940
941 LEAVE("qla1280_error_action");
942 return result;
943}
944
945/**************************************************************************
946 * qla1280_abort
947 * Abort the specified SCSI command(s).
948 **************************************************************************/
949static int
950qla1280_eh_abort(struct scsi_cmnd * cmd)
951{
952 int rc;
953
954 spin_lock_irq(cmd->device->host->host_lock);
955 rc = qla1280_error_action(cmd, ABORT_COMMAND);
956 spin_unlock_irq(cmd->device->host->host_lock);
957
958 return rc;
959}
960
961/**************************************************************************
962 * qla1280_device_reset
963 * Reset the specified SCSI device
964 **************************************************************************/
965static int
966qla1280_eh_device_reset(struct scsi_cmnd *cmd)
967{
968 int rc;
969
970 spin_lock_irq(cmd->device->host->host_lock);
971 rc = qla1280_error_action(cmd, DEVICE_RESET);
972 spin_unlock_irq(cmd->device->host->host_lock);
973
974 return rc;
975}
976
977/**************************************************************************
978 * qla1280_bus_reset
979 * Reset the specified bus.
980 **************************************************************************/
981static int
982qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
983{
984 int rc;
985
986 spin_lock_irq(cmd->device->host->host_lock);
987 rc = qla1280_error_action(cmd, BUS_RESET);
988 spin_unlock_irq(cmd->device->host->host_lock);
989
990 return rc;
991}
992
993/**************************************************************************
994 * qla1280_adapter_reset
995 * Reset the specified adapter (both channels)
996 **************************************************************************/
997static int
998qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
999{
1000 int rc = SUCCESS;
1001 struct Scsi_Host *shost = cmd->device->host;
1002 struct scsi_qla_host *ha = (struct scsi_qla_host *)shost->hostdata;
1003
1004 spin_lock_irq(shost->host_lock);
1005 if (qla1280_verbose) {
1006 printk(KERN_INFO
1007 "scsi(%ld): Issued ADAPTER RESET\n",
1008 ha->host_no);
1009 printk(KERN_INFO "scsi(%ld): I/O processing will "
1010 "continue automatically\n", ha->host_no);
1011 }
1012 ha->flags.reset_active = 1;
1013
1014 if (qla1280_abort_isp(ha) != 0) { /* it's dead */
1015 rc = FAILED;
1016 }
1017
1018 ha->flags.reset_active = 0;
1019
1020 spin_unlock_irq(shost->host_lock);
1021
1022 return rc;
1023}
1024
1025static int
1026qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1027 sector_t capacity, int geom[])
1028{
1029 int heads, sectors, cylinders;
1030
1031 heads = 64;
1032 sectors = 32;
1033 cylinders = (unsigned long)capacity / (heads * sectors);
1034 if (cylinders > 1024) {
1035 heads = 255;
1036 sectors = 63;
1037 cylinders = (unsigned long)capacity / (heads * sectors);
1038 /* if (cylinders > 1023)
1039 cylinders = 1023; */
1040 }
1041
1042 geom[0] = heads;
1043 geom[1] = sectors;
1044 geom[2] = cylinders;
1045
1046 return 0;
1047}
1048
1049
1050/* disable risc and host interrupts */
1051static inline void
1052qla1280_disable_intrs(struct scsi_qla_host *ha)
1053{
1054 WRT_REG_WORD(&ha->iobase->ictrl, 0);
1055 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1056}
1057
1058/* enable risc and host interrupts */
1059static inline void
1060qla1280_enable_intrs(struct scsi_qla_host *ha)
1061{
1062 WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC));
1063 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1064}
1065
1066/**************************************************************************
1067 * qla1280_intr_handler
1068 * Handles the H/W interrupt
1069 **************************************************************************/
1070static irqreturn_t
1071qla1280_intr_handler(int irq, void *dev_id)
1072{
1073 struct scsi_qla_host *ha;
1074 struct device_reg __iomem *reg;
1075 u16 data;
1076 int handled = 0;
1077
1078 ENTER_INTR ("qla1280_intr_handler");
1079 ha = (struct scsi_qla_host *)dev_id;
1080
1081 spin_lock(ha->host->host_lock);
1082
1083 ha->isr_count++;
1084 reg = ha->iobase;
1085
1086 qla1280_disable_intrs(ha);
1087
1088 data = qla1280_debounce_register(®->istatus);
1089 /* Check for pending interrupts. */
1090 if (data & RISC_INT) {
1091 qla1280_isr(ha, &ha->done_q);
1092 handled = 1;
1093 }
1094 if (!list_empty(&ha->done_q))
1095 qla1280_done(ha);
1096
1097 spin_unlock(ha->host->host_lock);
1098
1099 qla1280_enable_intrs(ha);
1100
1101 LEAVE_INTR("qla1280_intr_handler");
1102 return IRQ_RETVAL(handled);
1103}
1104
1105
1106static int
1107qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
1108{
1109 uint8_t mr;
1110 uint16_t mb[MAILBOX_REGISTER_COUNT];
1111 struct nvram *nv;
1112 int status, lun;
1113
1114 nv = &ha->nvram;
1115
1116 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
1117
1118 /* Set Target Parameters. */
1119 mb[0] = MBC_SET_TARGET_PARAMETERS;
1120 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1121 mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8;
1122 mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9;
1123 mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10;
1124 mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11;
1125 mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12;
1126 mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13;
1127 mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14;
1128 mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15;
1129
1130 if (IS_ISP1x160(ha)) {
1131 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
1132 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8);
1133 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
1134 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
1135 mr |= BIT_6;
1136 } else {
1137 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8);
1138 }
1139 mb[3] |= nv->bus[bus].target[target].sync_period;
1140
1141 status = qla1280_mailbox_command(ha, mr, mb);
1142
1143 /* Set Device Queue Parameters. */
1144 for (lun = 0; lun < MAX_LUNS; lun++) {
1145 mb[0] = MBC_SET_DEVICE_QUEUE;
1146 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1147 mb[1] |= lun;
1148 mb[2] = nv->bus[bus].max_queue_depth;
1149 mb[3] = nv->bus[bus].target[target].execution_throttle;
1150 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1151 }
1152
1153 if (status)
1154 printk(KERN_WARNING "scsi(%ld:%i:%i): "
1155 "qla1280_set_target_parameters() failed\n",
1156 ha->host_no, bus, target);
1157 return status;
1158}
1159
1160
1161/**************************************************************************
1162 * qla1280_slave_configure
1163 *
1164 * Description:
1165 * Determines the queue depth for a given device. There are two ways
1166 * a queue depth can be obtained for a tagged queueing device. One
1167 * way is the default queue depth which is determined by whether
1168 * If it is defined, then it is used
1169 * as the default queue depth. Otherwise, we use either 4 or 8 as the
1170 * default queue depth (dependent on the number of hardware SCBs).
1171 **************************************************************************/
1172static int
1173qla1280_slave_configure(struct scsi_device *device)
1174{
1175 struct scsi_qla_host *ha;
1176 int default_depth = 3;
1177 int bus = device->channel;
1178 int target = device->id;
1179 int status = 0;
1180 struct nvram *nv;
1181 unsigned long flags;
1182
1183 ha = (struct scsi_qla_host *)device->host->hostdata;
1184 nv = &ha->nvram;
1185
1186 if (qla1280_check_for_dead_scsi_bus(ha, bus))
1187 return 1;
1188
1189 if (device->tagged_supported &&
1190 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
1191 scsi_change_queue_depth(device, ha->bus_settings[bus].hiwat);
1192 } else {
1193 scsi_change_queue_depth(device, default_depth);
1194 }
1195
1196 nv->bus[bus].target[target].parameter.enable_sync = device->sdtr;
1197 nv->bus[bus].target[target].parameter.enable_wide = device->wdtr;
1198 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
1199
1200 if (driver_setup.no_sync ||
1201 (driver_setup.sync_mask &&
1202 (~driver_setup.sync_mask & (1 << target))))
1203 nv->bus[bus].target[target].parameter.enable_sync = 0;
1204 if (driver_setup.no_wide ||
1205 (driver_setup.wide_mask &&
1206 (~driver_setup.wide_mask & (1 << target))))
1207 nv->bus[bus].target[target].parameter.enable_wide = 0;
1208 if (IS_ISP1x160(ha)) {
1209 if (driver_setup.no_ppr ||
1210 (driver_setup.ppr_mask &&
1211 (~driver_setup.ppr_mask & (1 << target))))
1212 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
1213 }
1214
1215 spin_lock_irqsave(ha->host->host_lock, flags);
1216 if (nv->bus[bus].target[target].parameter.enable_sync)
1217 status = qla1280_set_target_parameters(ha, bus, target);
1218 qla1280_get_target_parameters(ha, device);
1219 spin_unlock_irqrestore(ha->host->host_lock, flags);
1220 return status;
1221}
1222
1223
1224/*
1225 * qla1280_done
1226 * Process completed commands.
1227 *
1228 * Input:
1229 * ha = adapter block pointer.
1230 */
1231static void
1232qla1280_done(struct scsi_qla_host *ha)
1233{
1234 struct srb *sp;
1235 struct list_head *done_q;
1236 int bus, target;
1237 struct scsi_cmnd *cmd;
1238
1239 ENTER("qla1280_done");
1240
1241 done_q = &ha->done_q;
1242
1243 while (!list_empty(done_q)) {
1244 sp = list_entry(done_q->next, struct srb, list);
1245
1246 list_del(&sp->list);
1247
1248 cmd = sp->cmd;
1249 bus = SCSI_BUS_32(cmd);
1250 target = SCSI_TCN_32(cmd);
1251
1252 switch ((CMD_RESULT(cmd) >> 16)) {
1253 case DID_RESET:
1254 /* Issue marker command. */
1255 if (!ha->flags.abort_isp_active)
1256 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
1257 break;
1258 case DID_ABORT:
1259 sp->flags &= ~SRB_ABORT_PENDING;
1260 sp->flags |= SRB_ABORTED;
1261 break;
1262 default:
1263 break;
1264 }
1265
1266 /* Release memory used for this I/O */
1267 scsi_dma_unmap(cmd);
1268
1269 /* Call the mid-level driver interrupt handler */
1270 ha->actthreads--;
1271
1272 if (sp->wait == NULL)
1273 scsi_done(cmd);
1274 else
1275 complete(sp->wait);
1276 }
1277 LEAVE("qla1280_done");
1278}
1279
1280/*
1281 * Translates a ISP error to a Linux SCSI error
1282 */
1283static int
1284qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
1285{
1286 int host_status = DID_ERROR;
1287 uint16_t comp_status = le16_to_cpu(sts->comp_status);
1288 uint16_t state_flags = le16_to_cpu(sts->state_flags);
1289 uint32_t residual_length = le32_to_cpu(sts->residual_length);
1290 uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
1291#if DEBUG_QLA1280_INTR
1292 static char *reason[] = {
1293 "DID_OK",
1294 "DID_NO_CONNECT",
1295 "DID_BUS_BUSY",
1296 "DID_TIME_OUT",
1297 "DID_BAD_TARGET",
1298 "DID_ABORT",
1299 "DID_PARITY",
1300 "DID_ERROR",
1301 "DID_RESET",
1302 "DID_BAD_INTR"
1303 };
1304#endif /* DEBUG_QLA1280_INTR */
1305
1306 ENTER("qla1280_return_status");
1307
1308#if DEBUG_QLA1280_INTR
1309 /*
1310 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
1311 comp_status);
1312 */
1313#endif
1314
1315 switch (comp_status) {
1316 case CS_COMPLETE:
1317 host_status = DID_OK;
1318 break;
1319
1320 case CS_INCOMPLETE:
1321 if (!(state_flags & SF_GOT_BUS))
1322 host_status = DID_NO_CONNECT;
1323 else if (!(state_flags & SF_GOT_TARGET))
1324 host_status = DID_BAD_TARGET;
1325 else if (!(state_flags & SF_SENT_CDB))
1326 host_status = DID_ERROR;
1327 else if (!(state_flags & SF_TRANSFERRED_DATA))
1328 host_status = DID_ERROR;
1329 else if (!(state_flags & SF_GOT_STATUS))
1330 host_status = DID_ERROR;
1331 else if (!(state_flags & SF_GOT_SENSE))
1332 host_status = DID_ERROR;
1333 break;
1334
1335 case CS_RESET:
1336 host_status = DID_RESET;
1337 break;
1338
1339 case CS_ABORTED:
1340 host_status = DID_ABORT;
1341 break;
1342
1343 case CS_TIMEOUT:
1344 host_status = DID_TIME_OUT;
1345 break;
1346
1347 case CS_DATA_OVERRUN:
1348 dprintk(2, "Data overrun 0x%x\n", residual_length);
1349 dprintk(2, "qla1280_return_status: response packet data\n");
1350 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
1351 host_status = DID_ERROR;
1352 break;
1353
1354 case CS_DATA_UNDERRUN:
1355 if ((scsi_bufflen(cp) - residual_length) <
1356 cp->underflow) {
1357 printk(KERN_WARNING
1358 "scsi: Underflow detected - retrying "
1359 "command.\n");
1360 host_status = DID_ERROR;
1361 } else {
1362 scsi_set_resid(cp, residual_length);
1363 host_status = DID_OK;
1364 }
1365 break;
1366
1367 default:
1368 host_status = DID_ERROR;
1369 break;
1370 }
1371
1372#if DEBUG_QLA1280_INTR
1373 dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
1374 reason[host_status], scsi_status);
1375#endif
1376
1377 LEAVE("qla1280_return_status");
1378
1379 return (scsi_status & 0xff) | (host_status << 16);
1380}
1381
1382/****************************************************************************/
1383/* QLogic ISP1280 Hardware Support Functions. */
1384/****************************************************************************/
1385
1386/*
1387 * qla1280_initialize_adapter
1388 * Initialize board.
1389 *
1390 * Input:
1391 * ha = adapter block pointer.
1392 *
1393 * Returns:
1394 * 0 = success
1395 */
1396static int
1397qla1280_initialize_adapter(struct scsi_qla_host *ha)
1398{
1399 struct device_reg __iomem *reg;
1400 int status;
1401 int bus;
1402 unsigned long flags;
1403
1404 ENTER("qla1280_initialize_adapter");
1405
1406 /* Clear adapter flags. */
1407 ha->flags.online = 0;
1408 ha->flags.disable_host_adapter = 0;
1409 ha->flags.reset_active = 0;
1410 ha->flags.abort_isp_active = 0;
1411
1412 /* TODO: implement support for the 1040 nvram format */
1413 if (IS_ISP1040(ha))
1414 driver_setup.no_nvram = 1;
1415
1416 dprintk(1, "Configure PCI space for adapter...\n");
1417
1418 reg = ha->iobase;
1419
1420 /* Insure mailbox registers are free. */
1421 WRT_REG_WORD(®->semaphore, 0);
1422 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
1423 WRT_REG_WORD(®->host_cmd, HC_CLR_HOST_INT);
1424 RD_REG_WORD(®->host_cmd);
1425
1426 if (qla1280_read_nvram(ha)) {
1427 dprintk(2, "qla1280_initialize_adapter: failed to read "
1428 "NVRAM\n");
1429 }
1430
1431 /*
1432 * It's necessary to grab the spin here as qla1280_mailbox_command
1433 * needs to be able to drop the lock unconditionally to wait
1434 * for completion.
1435 */
1436 spin_lock_irqsave(ha->host->host_lock, flags);
1437
1438 status = qla1280_load_firmware(ha);
1439 if (status) {
1440 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
1441 ha->host_no);
1442 goto out;
1443 }
1444
1445 /* Setup adapter based on NVRAM parameters. */
1446 dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
1447 qla1280_nvram_config(ha);
1448
1449 if (ha->flags.disable_host_adapter) {
1450 status = 1;
1451 goto out;
1452 }
1453
1454 status = qla1280_init_rings(ha);
1455 if (status)
1456 goto out;
1457
1458 /* Issue SCSI reset, if we can't reset twice then bus is dead */
1459 for (bus = 0; bus < ha->ports; bus++) {
1460 if (!ha->bus_settings[bus].disable_scsi_reset &&
1461 qla1280_bus_reset(ha, bus) &&
1462 qla1280_bus_reset(ha, bus))
1463 ha->bus_settings[bus].scsi_bus_dead = 1;
1464 }
1465
1466 ha->flags.online = 1;
1467 out:
1468 spin_unlock_irqrestore(ha->host->host_lock, flags);
1469
1470 if (status)
1471 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
1472
1473 LEAVE("qla1280_initialize_adapter");
1474 return status;
1475}
1476
1477/*
1478 * qla1280_request_firmware
1479 * Acquire firmware for chip. Retain in memory
1480 * for error recovery.
1481 *
1482 * Input:
1483 * ha = adapter block pointer.
1484 *
1485 * Returns:
1486 * Pointer to firmware image or an error code
1487 * cast to pointer via ERR_PTR().
1488 */
1489static const struct firmware *
1490qla1280_request_firmware(struct scsi_qla_host *ha)
1491{
1492 const struct firmware *fw;
1493 int err;
1494 int index;
1495 char *fwname;
1496
1497 spin_unlock_irq(ha->host->host_lock);
1498 mutex_lock(&qla1280_firmware_mutex);
1499
1500 index = ql1280_board_tbl[ha->devnum].fw_index;
1501 fw = qla1280_fw_tbl[index].fw;
1502 if (fw)
1503 goto out;
1504
1505 fwname = qla1280_fw_tbl[index].fwname;
1506 err = request_firmware(&fw, fwname, &ha->pdev->dev);
1507
1508 if (err) {
1509 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
1510 fwname, err);
1511 fw = ERR_PTR(err);
1512 goto unlock;
1513 }
1514 if ((fw->size % 2) || (fw->size < 6)) {
1515 printk(KERN_ERR "Invalid firmware length %zu in image \"%s\"\n",
1516 fw->size, fwname);
1517 release_firmware(fw);
1518 fw = ERR_PTR(-EINVAL);
1519 goto unlock;
1520 }
1521
1522 qla1280_fw_tbl[index].fw = fw;
1523
1524 out:
1525 ha->fwver1 = fw->data[0];
1526 ha->fwver2 = fw->data[1];
1527 ha->fwver3 = fw->data[2];
1528 unlock:
1529 mutex_unlock(&qla1280_firmware_mutex);
1530 spin_lock_irq(ha->host->host_lock);
1531 return fw;
1532}
1533
1534/*
1535 * Chip diagnostics
1536 * Test chip for proper operation.
1537 *
1538 * Input:
1539 * ha = adapter block pointer.
1540 *
1541 * Returns:
1542 * 0 = success.
1543 */
1544static int
1545qla1280_chip_diag(struct scsi_qla_host *ha)
1546{
1547 uint16_t mb[MAILBOX_REGISTER_COUNT];
1548 struct device_reg __iomem *reg = ha->iobase;
1549 int status = 0;
1550 int cnt;
1551 uint16_t data;
1552 dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", ®->id_l);
1553
1554 dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
1555
1556 /* Soft reset chip and wait for it to finish. */
1557 WRT_REG_WORD(®->ictrl, ISP_RESET);
1558
1559 /*
1560 * We can't do a traditional PCI write flush here by reading
1561 * back the register. The card will not respond once the reset
1562 * is in action and we end up with a machine check exception
1563 * instead. Nothing to do but wait and hope for the best.
1564 * A portable pci_write_flush(pdev) call would be very useful here.
1565 */
1566 udelay(20);
1567 data = qla1280_debounce_register(®->ictrl);
1568 /*
1569 * Yet another QLogic gem ;-(
1570 */
1571 for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
1572 udelay(5);
1573 data = RD_REG_WORD(®->ictrl);
1574 }
1575
1576 if (!cnt)
1577 goto fail;
1578
1579 /* Reset register cleared by chip reset. */
1580 dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
1581
1582 WRT_REG_WORD(®->cfg_1, 0);
1583
1584 /* Reset RISC and disable BIOS which
1585 allows RISC to execute out of RAM. */
1586 WRT_REG_WORD(®->host_cmd, HC_RESET_RISC |
1587 HC_RELEASE_RISC | HC_DISABLE_BIOS);
1588
1589 RD_REG_WORD(®->id_l); /* Flush PCI write */
1590 data = qla1280_debounce_register(®->mailbox0);
1591
1592 /*
1593 * I *LOVE* this code!
1594 */
1595 for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
1596 udelay(5);
1597 data = RD_REG_WORD(®->mailbox0);
1598 }
1599
1600 if (!cnt)
1601 goto fail;
1602
1603 /* Check product ID of chip */
1604 dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
1605
1606 if (RD_REG_WORD(®->mailbox1) != PROD_ID_1 ||
1607 (RD_REG_WORD(®->mailbox2) != PROD_ID_2 &&
1608 RD_REG_WORD(®->mailbox2) != PROD_ID_2a) ||
1609 RD_REG_WORD(®->mailbox3) != PROD_ID_3 ||
1610 RD_REG_WORD(®->mailbox4) != PROD_ID_4) {
1611 printk(KERN_INFO "qla1280: Wrong product ID = "
1612 "0x%x,0x%x,0x%x,0x%x\n",
1613 RD_REG_WORD(®->mailbox1),
1614 RD_REG_WORD(®->mailbox2),
1615 RD_REG_WORD(®->mailbox3),
1616 RD_REG_WORD(®->mailbox4));
1617 goto fail;
1618 }
1619
1620 /*
1621 * Enable ints early!!!
1622 */
1623 qla1280_enable_intrs(ha);
1624
1625 dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
1626 /* Wrap Incoming Mailboxes Test. */
1627 mb[0] = MBC_MAILBOX_REGISTER_TEST;
1628 mb[1] = 0xAAAA;
1629 mb[2] = 0x5555;
1630 mb[3] = 0xAA55;
1631 mb[4] = 0x55AA;
1632 mb[5] = 0xA5A5;
1633 mb[6] = 0x5A5A;
1634 mb[7] = 0x2525;
1635
1636 status = qla1280_mailbox_command(ha, 0xff, mb);
1637 if (status)
1638 goto fail;
1639
1640 if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
1641 mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
1642 mb[7] != 0x2525) {
1643 printk(KERN_INFO "qla1280: Failed mbox check\n");
1644 goto fail;
1645 }
1646
1647 dprintk(3, "qla1280_chip_diag: exiting normally\n");
1648 return 0;
1649 fail:
1650 dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
1651 return status;
1652}
1653
1654static int
1655qla1280_load_firmware_pio(struct scsi_qla_host *ha)
1656{
1657 /* enter with host_lock acquired */
1658
1659 const struct firmware *fw;
1660 const __le16 *fw_data;
1661 uint16_t risc_address, risc_code_size;
1662 uint16_t mb[MAILBOX_REGISTER_COUNT], i;
1663 int err = 0;
1664
1665 fw = qla1280_request_firmware(ha);
1666 if (IS_ERR(fw))
1667 return PTR_ERR(fw);
1668
1669 fw_data = (const __le16 *)&fw->data[0];
1670 ha->fwstart = __le16_to_cpu(fw_data[2]);
1671
1672 /* Load RISC code. */
1673 risc_address = ha->fwstart;
1674 fw_data = (const __le16 *)&fw->data[6];
1675 risc_code_size = (fw->size - 6) / 2;
1676
1677 for (i = 0; i < risc_code_size; i++) {
1678 mb[0] = MBC_WRITE_RAM_WORD;
1679 mb[1] = risc_address + i;
1680 mb[2] = __le16_to_cpu(fw_data[i]);
1681
1682 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
1683 if (err) {
1684 printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
1685 ha->host_no);
1686 break;
1687 }
1688 }
1689
1690 return err;
1691}
1692
1693#ifdef QLA_64BIT_PTR
1694#define LOAD_CMD MBC_LOAD_RAM_A64_ROM
1695#define DUMP_CMD MBC_DUMP_RAM_A64_ROM
1696#define CMD_ARGS (BIT_7 | BIT_6 | BIT_4 | BIT_3 | BIT_2 | BIT_1 | BIT_0)
1697#else
1698#define LOAD_CMD MBC_LOAD_RAM
1699#define DUMP_CMD MBC_DUMP_RAM
1700#define CMD_ARGS (BIT_4 | BIT_3 | BIT_2 | BIT_1 | BIT_0)
1701#endif
1702
1703#define DUMP_IT_BACK 0 /* for debug of RISC loading */
1704static int
1705qla1280_load_firmware_dma(struct scsi_qla_host *ha)
1706{
1707 /* enter with host_lock acquired */
1708 const struct firmware *fw;
1709 const __le16 *fw_data;
1710 uint16_t risc_address, risc_code_size;
1711 uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
1712 int err = 0, num, i;
1713#if DUMP_IT_BACK
1714 uint8_t *sp, *tbuf;
1715 dma_addr_t p_tbuf;
1716
1717 tbuf = dma_alloc_coherent(&ha->pdev->dev, 8000, &p_tbuf, GFP_KERNEL);
1718 if (!tbuf)
1719 return -ENOMEM;
1720#endif
1721
1722 fw = qla1280_request_firmware(ha);
1723 if (IS_ERR(fw))
1724 return PTR_ERR(fw);
1725
1726 fw_data = (const __le16 *)&fw->data[0];
1727 ha->fwstart = __le16_to_cpu(fw_data[2]);
1728
1729 /* Load RISC code. */
1730 risc_address = ha->fwstart;
1731 fw_data = (const __le16 *)&fw->data[6];
1732 risc_code_size = (fw->size - 6) / 2;
1733
1734 dprintk(1, "%s: DMA RISC code (%i) words\n",
1735 __func__, risc_code_size);
1736
1737 num = 0;
1738 while (risc_code_size > 0) {
1739 int warn __attribute__((unused)) = 0;
1740
1741 cnt = 2000 >> 1;
1742
1743 if (cnt > risc_code_size)
1744 cnt = risc_code_size;
1745
1746 dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p),"
1747 "%d,%d(0x%x)\n",
1748 fw_data, cnt, num, risc_address);
1749 for(i = 0; i < cnt; i++)
1750 ((__le16 *)ha->request_ring)[i] = fw_data[i];
1751
1752 mb[0] = LOAD_CMD;
1753 mb[1] = risc_address;
1754 mb[4] = cnt;
1755 mb[3] = ha->request_dma & 0xffff;
1756 mb[2] = (ha->request_dma >> 16) & 0xffff;
1757 mb[7] = upper_32_bits(ha->request_dma) & 0xffff;
1758 mb[6] = upper_32_bits(ha->request_dma) >> 16;
1759 dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
1760 __func__, mb[0],
1761 (void *)(long)ha->request_dma,
1762 mb[6], mb[7], mb[2], mb[3]);
1763 err = qla1280_mailbox_command(ha, CMD_ARGS, mb);
1764 if (err) {
1765 printk(KERN_ERR "scsi(%li): Failed to load partial "
1766 "segment of f\n", ha->host_no);
1767 goto out;
1768 }
1769
1770#if DUMP_IT_BACK
1771 mb[0] = DUMP_CMD;
1772 mb[1] = risc_address;
1773 mb[4] = cnt;
1774 mb[3] = p_tbuf & 0xffff;
1775 mb[2] = (p_tbuf >> 16) & 0xffff;
1776 mb[7] = upper_32_bits(p_tbuf) & 0xffff;
1777 mb[6] = upper_32_bits(p_tbuf) >> 16;
1778
1779 err = qla1280_mailbox_command(ha, CMD_ARGS, mb);
1780 if (err) {
1781 printk(KERN_ERR
1782 "Failed to dump partial segment of f/w\n");
1783 goto out;
1784 }
1785 sp = (uint8_t *)ha->request_ring;
1786 for (i = 0; i < (cnt << 1); i++) {
1787 if (tbuf[i] != sp[i] && warn++ < 10) {
1788 printk(KERN_ERR "%s: FW compare error @ "
1789 "byte(0x%x) loop#=%x\n",
1790 __func__, i, num);
1791 printk(KERN_ERR "%s: FWbyte=%x "
1792 "FWfromChip=%x\n",
1793 __func__, sp[i], tbuf[i]);
1794 /*break; */
1795 }
1796 }
1797#endif
1798 risc_address += cnt;
1799 risc_code_size = risc_code_size - cnt;
1800 fw_data = fw_data + cnt;
1801 num++;
1802 }
1803
1804 out:
1805#if DUMP_IT_BACK
1806 dma_free_coherent(&ha->pdev->dev, 8000, tbuf, p_tbuf);
1807#endif
1808 return err;
1809}
1810
1811static int
1812qla1280_start_firmware(struct scsi_qla_host *ha)
1813{
1814 uint16_t mb[MAILBOX_REGISTER_COUNT];
1815 int err;
1816
1817 dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
1818 __func__);
1819
1820 /* Verify checksum of loaded RISC code. */
1821 mb[0] = MBC_VERIFY_CHECKSUM;
1822 /* mb[1] = ql12_risc_code_addr01; */
1823 mb[1] = ha->fwstart;
1824 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1825 if (err) {
1826 printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no);
1827 return err;
1828 }
1829
1830 /* Start firmware execution. */
1831 dprintk(1, "%s: start firmware running.\n", __func__);
1832 mb[0] = MBC_EXECUTE_FIRMWARE;
1833 mb[1] = ha->fwstart;
1834 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
1835 if (err) {
1836 printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
1837 ha->host_no);
1838 }
1839
1840 return err;
1841}
1842
1843static int
1844qla1280_load_firmware(struct scsi_qla_host *ha)
1845{
1846 /* enter with host_lock taken */
1847 int err;
1848
1849 err = qla1280_chip_diag(ha);
1850 if (err)
1851 goto out;
1852 if (IS_ISP1040(ha))
1853 err = qla1280_load_firmware_pio(ha);
1854 else
1855 err = qla1280_load_firmware_dma(ha);
1856 if (err)
1857 goto out;
1858 err = qla1280_start_firmware(ha);
1859 out:
1860 return err;
1861}
1862
1863/*
1864 * Initialize rings
1865 *
1866 * Input:
1867 * ha = adapter block pointer.
1868 * ha->request_ring = request ring virtual address
1869 * ha->response_ring = response ring virtual address
1870 * ha->request_dma = request ring physical address
1871 * ha->response_dma = response ring physical address
1872 *
1873 * Returns:
1874 * 0 = success.
1875 */
1876static int
1877qla1280_init_rings(struct scsi_qla_host *ha)
1878{
1879 uint16_t mb[MAILBOX_REGISTER_COUNT];
1880 int status = 0;
1881
1882 ENTER("qla1280_init_rings");
1883
1884 /* Clear outstanding commands array. */
1885 memset(ha->outstanding_cmds, 0,
1886 sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
1887
1888 /* Initialize request queue. */
1889 ha->request_ring_ptr = ha->request_ring;
1890 ha->req_ring_index = 0;
1891 ha->req_q_cnt = REQUEST_ENTRY_CNT;
1892 /* mb[0] = MBC_INIT_REQUEST_QUEUE; */
1893 mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
1894 mb[1] = REQUEST_ENTRY_CNT;
1895 mb[3] = ha->request_dma & 0xffff;
1896 mb[2] = (ha->request_dma >> 16) & 0xffff;
1897 mb[4] = 0;
1898 mb[7] = upper_32_bits(ha->request_dma) & 0xffff;
1899 mb[6] = upper_32_bits(ha->request_dma) >> 16;
1900 if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
1901 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1902 &mb[0]))) {
1903 /* Initialize response queue. */
1904 ha->response_ring_ptr = ha->response_ring;
1905 ha->rsp_ring_index = 0;
1906 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
1907 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
1908 mb[1] = RESPONSE_ENTRY_CNT;
1909 mb[3] = ha->response_dma & 0xffff;
1910 mb[2] = (ha->response_dma >> 16) & 0xffff;
1911 mb[5] = 0;
1912 mb[7] = upper_32_bits(ha->response_dma) & 0xffff;
1913 mb[6] = upper_32_bits(ha->response_dma) >> 16;
1914 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
1915 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1916 &mb[0]);
1917 }
1918
1919 if (status)
1920 dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
1921
1922 LEAVE("qla1280_init_rings");
1923 return status;
1924}
1925
1926static void
1927qla1280_print_settings(struct nvram *nv)
1928{
1929 dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
1930 nv->bus[0].config_1.initiator_id);
1931 dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
1932 nv->bus[1].config_1.initiator_id);
1933
1934 dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
1935 nv->bus[0].bus_reset_delay);
1936 dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
1937 nv->bus[1].bus_reset_delay);
1938
1939 dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
1940 dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
1941 dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
1942 dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
1943
1944 dprintk(1, "qla1280 : async data setup time[0]=%d\n",
1945 nv->bus[0].config_2.async_data_setup_time);
1946 dprintk(1, "qla1280 : async data setup time[1]=%d\n",
1947 nv->bus[1].config_2.async_data_setup_time);
1948
1949 dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
1950 nv->bus[0].config_2.req_ack_active_negation);
1951 dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
1952 nv->bus[1].config_2.req_ack_active_negation);
1953
1954 dprintk(1, "qla1280 : data line active negation[0]=%d\n",
1955 nv->bus[0].config_2.data_line_active_negation);
1956 dprintk(1, "qla1280 : data line active negation[1]=%d\n",
1957 nv->bus[1].config_2.data_line_active_negation);
1958
1959 dprintk(1, "qla1280 : disable loading risc code=%d\n",
1960 nv->cntr_flags_1.disable_loading_risc_code);
1961
1962 dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
1963 nv->cntr_flags_1.enable_64bit_addressing);
1964
1965 dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
1966 nv->bus[0].selection_timeout);
1967 dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
1968 nv->bus[1].selection_timeout);
1969
1970 dprintk(1, "qla1280 : max queue depth[0]=%d\n",
1971 nv->bus[0].max_queue_depth);
1972 dprintk(1, "qla1280 : max queue depth[1]=%d\n",
1973 nv->bus[1].max_queue_depth);
1974}
1975
1976static void
1977qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
1978{
1979 struct nvram *nv = &ha->nvram;
1980
1981 nv->bus[bus].target[target].parameter.renegotiate_on_error = 1;
1982 nv->bus[bus].target[target].parameter.auto_request_sense = 1;
1983 nv->bus[bus].target[target].parameter.tag_queuing = 1;
1984 nv->bus[bus].target[target].parameter.enable_sync = 1;
1985#if 1 /* Some SCSI Processors do not seem to like this */
1986 nv->bus[bus].target[target].parameter.enable_wide = 1;
1987#endif
1988 nv->bus[bus].target[target].execution_throttle =
1989 nv->bus[bus].max_queue_depth - 1;
1990 nv->bus[bus].target[target].parameter.parity_checking = 1;
1991 nv->bus[bus].target[target].parameter.disconnect_allowed = 1;
1992
1993 if (IS_ISP1x160(ha)) {
1994 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
1995 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
1996 nv->bus[bus].target[target].sync_period = 9;
1997 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
1998 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
1999 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
2000 } else {
2001 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
2002 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
2003 nv->bus[bus].target[target].sync_period = 10;
2004 }
2005}
2006
2007static void
2008qla1280_set_defaults(struct scsi_qla_host *ha)
2009{
2010 struct nvram *nv = &ha->nvram;
2011 int bus, target;
2012
2013 dprintk(1, "Using defaults for NVRAM: \n");
2014 memset(nv, 0, sizeof(struct nvram));
2015
2016 /* nv->cntr_flags_1.disable_loading_risc_code = 1; */
2017 nv->firmware_feature.f.enable_fast_posting = 1;
2018 nv->firmware_feature.f.disable_synchronous_backoff = 1;
2019 nv->termination.scsi_bus_0_control = 3;
2020 nv->termination.scsi_bus_1_control = 3;
2021 nv->termination.auto_term_support = 1;
2022
2023 /*
2024 * Set default FIFO magic - What appropriate values would be here
2025 * is unknown. This is what I have found testing with 12160s.
2026 *
2027 * Now, I would love the magic decoder ring for this one, the
2028 * header file provided by QLogic seems to be bogus or incomplete
2029 * at best.
2030 */
2031 nv->isp_config.burst_enable = 1;
2032 if (IS_ISP1040(ha))
2033 nv->isp_config.fifo_threshold |= 3;
2034 else
2035 nv->isp_config.fifo_threshold |= 4;
2036
2037 if (IS_ISP1x160(ha))
2038 nv->isp_parameter = 0x01; /* fast memory enable */
2039
2040 for (bus = 0; bus < MAX_BUSES; bus++) {
2041 nv->bus[bus].config_1.initiator_id = 7;
2042 nv->bus[bus].config_2.req_ack_active_negation = 1;
2043 nv->bus[bus].config_2.data_line_active_negation = 1;
2044 nv->bus[bus].selection_timeout = 250;
2045 nv->bus[bus].max_queue_depth = 32;
2046
2047 if (IS_ISP1040(ha)) {
2048 nv->bus[bus].bus_reset_delay = 3;
2049 nv->bus[bus].config_2.async_data_setup_time = 6;
2050 nv->bus[bus].retry_delay = 1;
2051 } else {
2052 nv->bus[bus].bus_reset_delay = 5;
2053 nv->bus[bus].config_2.async_data_setup_time = 8;
2054 }
2055
2056 for (target = 0; target < MAX_TARGETS; target++)
2057 qla1280_set_target_defaults(ha, bus, target);
2058 }
2059}
2060
2061static int
2062qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
2063{
2064 struct nvram *nv = &ha->nvram;
2065 uint16_t mb[MAILBOX_REGISTER_COUNT];
2066 int status, lun;
2067 uint16_t flag;
2068
2069 /* Set Target Parameters. */
2070 mb[0] = MBC_SET_TARGET_PARAMETERS;
2071 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2072
2073 /*
2074 * Do not enable sync and ppr for the initial INQUIRY run. We
2075 * enable this later if we determine the target actually
2076 * supports it.
2077 */
2078 mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE
2079 | TP_WIDE | TP_PARITY | TP_DISCONNECT);
2080
2081 if (IS_ISP1x160(ha))
2082 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
2083 else
2084 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
2085 mb[3] |= nv->bus[bus].target[target].sync_period;
2086 status = qla1280_mailbox_command(ha, 0x0f, mb);
2087
2088 /* Save Tag queuing enable flag. */
2089 flag = (BIT_0 << target);
2090 if (nv->bus[bus].target[target].parameter.tag_queuing)
2091 ha->bus_settings[bus].qtag_enables |= flag;
2092
2093 /* Save Device enable flag. */
2094 if (IS_ISP1x160(ha)) {
2095 if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
2096 ha->bus_settings[bus].device_enables |= flag;
2097 ha->bus_settings[bus].lun_disables |= 0;
2098 } else {
2099 if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
2100 ha->bus_settings[bus].device_enables |= flag;
2101 /* Save LUN disable flag. */
2102 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
2103 ha->bus_settings[bus].lun_disables |= flag;
2104 }
2105
2106 /* Set Device Queue Parameters. */
2107 for (lun = 0; lun < MAX_LUNS; lun++) {
2108 mb[0] = MBC_SET_DEVICE_QUEUE;
2109 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2110 mb[1] |= lun;
2111 mb[2] = nv->bus[bus].max_queue_depth;
2112 mb[3] = nv->bus[bus].target[target].execution_throttle;
2113 status |= qla1280_mailbox_command(ha, 0x0f, mb);
2114 }
2115
2116 return status;
2117}
2118
2119static int
2120qla1280_config_bus(struct scsi_qla_host *ha, int bus)
2121{
2122 struct nvram *nv = &ha->nvram;
2123 uint16_t mb[MAILBOX_REGISTER_COUNT];
2124 int target, status;
2125
2126 /* SCSI Reset Disable. */
2127 ha->bus_settings[bus].disable_scsi_reset =
2128 nv->bus[bus].config_1.scsi_reset_disable;
2129
2130 /* Initiator ID. */
2131 ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
2132 mb[0] = MBC_SET_INITIATOR_ID;
2133 mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
2134 ha->bus_settings[bus].id;
2135 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2136
2137 /* Reset Delay. */
2138 ha->bus_settings[bus].bus_reset_delay =
2139 nv->bus[bus].bus_reset_delay;
2140
2141 /* Command queue depth per device. */
2142 ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
2143
2144 /* Set target parameters. */
2145 for (target = 0; target < MAX_TARGETS; target++)
2146 status |= qla1280_config_target(ha, bus, target);
2147
2148 return status;
2149}
2150
2151static int
2152qla1280_nvram_config(struct scsi_qla_host *ha)
2153{
2154 struct device_reg __iomem *reg = ha->iobase;
2155 struct nvram *nv = &ha->nvram;
2156 int bus, target, status = 0;
2157 uint16_t mb[MAILBOX_REGISTER_COUNT];
2158
2159 ENTER("qla1280_nvram_config");
2160
2161 if (ha->nvram_valid) {
2162 /* Always force AUTO sense for LINUX SCSI */
2163 for (bus = 0; bus < MAX_BUSES; bus++)
2164 for (target = 0; target < MAX_TARGETS; target++) {
2165 nv->bus[bus].target[target].parameter.
2166 auto_request_sense = 1;
2167 }
2168 } else {
2169 qla1280_set_defaults(ha);
2170 }
2171
2172 qla1280_print_settings(nv);
2173
2174 /* Disable RISC load of firmware. */
2175 ha->flags.disable_risc_code_load =
2176 nv->cntr_flags_1.disable_loading_risc_code;
2177
2178 if (IS_ISP1040(ha)) {
2179 uint16_t hwrev, cfg1, cdma_conf;
2180
2181 hwrev = RD_REG_WORD(®->cfg_0) & ISP_CFG0_HWMSK;
2182
2183 cfg1 = RD_REG_WORD(®->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6);
2184 cdma_conf = RD_REG_WORD(®->cdma_cfg);
2185
2186 /* Busted fifo, says mjacob. */
2187 if (hwrev != ISP_CFG0_1040A)
2188 cfg1 |= nv->isp_config.fifo_threshold << 4;
2189
2190 cfg1 |= nv->isp_config.burst_enable << 2;
2191 WRT_REG_WORD(®->cfg_1, cfg1);
2192
2193 WRT_REG_WORD(®->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
2194 WRT_REG_WORD(®->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
2195 } else {
2196 uint16_t cfg1, term;
2197
2198 /* Set ISP hardware DMA burst */
2199 cfg1 = nv->isp_config.fifo_threshold << 4;
2200 cfg1 |= nv->isp_config.burst_enable << 2;
2201 /* Enable DMA arbitration on dual channel controllers */
2202 if (ha->ports > 1)
2203 cfg1 |= BIT_13;
2204 WRT_REG_WORD(®->cfg_1, cfg1);
2205
2206 /* Set SCSI termination. */
2207 WRT_REG_WORD(®->gpio_enable,
2208 BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0);
2209 term = nv->termination.scsi_bus_1_control;
2210 term |= nv->termination.scsi_bus_0_control << 2;
2211 term |= nv->termination.auto_term_support << 7;
2212 RD_REG_WORD(®->id_l); /* Flush PCI write */
2213 WRT_REG_WORD(®->gpio_data, term);
2214 }
2215 RD_REG_WORD(®->id_l); /* Flush PCI write */
2216
2217 /* ISP parameter word. */
2218 mb[0] = MBC_SET_SYSTEM_PARAMETER;
2219 mb[1] = nv->isp_parameter;
2220 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2221
2222 if (IS_ISP1x40(ha)) {
2223 /* clock rate - for qla1240 and older, only */
2224 mb[0] = MBC_SET_CLOCK_RATE;
2225 mb[1] = 40;
2226 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2227 }
2228
2229 /* Firmware feature word. */
2230 mb[0] = MBC_SET_FIRMWARE_FEATURES;
2231 mb[1] = nv->firmware_feature.f.enable_fast_posting;
2232 mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1;
2233 mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5;
2234 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2235
2236 /* Retry count and delay. */
2237 mb[0] = MBC_SET_RETRY_COUNT;
2238 mb[1] = nv->bus[0].retry_count;
2239 mb[2] = nv->bus[0].retry_delay;
2240 mb[6] = nv->bus[1].retry_count;
2241 mb[7] = nv->bus[1].retry_delay;
2242 status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
2243 BIT_1 | BIT_0, &mb[0]);
2244
2245 /* ASYNC data setup time. */
2246 mb[0] = MBC_SET_ASYNC_DATA_SETUP;
2247 mb[1] = nv->bus[0].config_2.async_data_setup_time;
2248 mb[2] = nv->bus[1].config_2.async_data_setup_time;
2249 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2250
2251 /* Active negation states. */
2252 mb[0] = MBC_SET_ACTIVE_NEGATION;
2253 mb[1] = 0;
2254 if (nv->bus[0].config_2.req_ack_active_negation)
2255 mb[1] |= BIT_5;
2256 if (nv->bus[0].config_2.data_line_active_negation)
2257 mb[1] |= BIT_4;
2258 mb[2] = 0;
2259 if (nv->bus[1].config_2.req_ack_active_negation)
2260 mb[2] |= BIT_5;
2261 if (nv->bus[1].config_2.data_line_active_negation)
2262 mb[2] |= BIT_4;
2263 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2264
2265 mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
2266 mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */
2267 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2268
2269 /* thingy */
2270 mb[0] = MBC_SET_PCI_CONTROL;
2271 mb[1] = BIT_1; /* Data DMA Channel Burst Enable */
2272 mb[2] = BIT_1; /* Command DMA Channel Burst Enable */
2273 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2274
2275 mb[0] = MBC_SET_TAG_AGE_LIMIT;
2276 mb[1] = 8;
2277 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2278
2279 /* Selection timeout. */
2280 mb[0] = MBC_SET_SELECTION_TIMEOUT;
2281 mb[1] = nv->bus[0].selection_timeout;
2282 mb[2] = nv->bus[1].selection_timeout;
2283 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2284
2285 for (bus = 0; bus < ha->ports; bus++)
2286 status |= qla1280_config_bus(ha, bus);
2287
2288 if (status)
2289 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
2290
2291 LEAVE("qla1280_nvram_config");
2292 return status;
2293}
2294
2295/*
2296 * Get NVRAM data word
2297 * Calculates word position in NVRAM and calls request routine to
2298 * get the word from NVRAM.
2299 *
2300 * Input:
2301 * ha = adapter block pointer.
2302 * address = NVRAM word address.
2303 *
2304 * Returns:
2305 * data word.
2306 */
2307static uint16_t
2308qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
2309{
2310 uint32_t nv_cmd;
2311 uint16_t data;
2312
2313 nv_cmd = address << 16;
2314 nv_cmd |= NV_READ_OP;
2315
2316 data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
2317
2318 dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
2319 "0x%x", data);
2320
2321 return data;
2322}
2323
2324/*
2325 * NVRAM request
2326 * Sends read command to NVRAM and gets data from NVRAM.
2327 *
2328 * Input:
2329 * ha = adapter block pointer.
2330 * nv_cmd = Bit 26 = start bit
2331 * Bit 25, 24 = opcode
2332 * Bit 23-16 = address
2333 * Bit 15-0 = write data
2334 *
2335 * Returns:
2336 * data word.
2337 */
2338static uint16_t
2339qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
2340{
2341 struct device_reg __iomem *reg = ha->iobase;
2342 int cnt;
2343 uint16_t data = 0;
2344 uint16_t reg_data;
2345
2346 /* Send command to NVRAM. */
2347
2348 nv_cmd <<= 5;
2349 for (cnt = 0; cnt < 11; cnt++) {
2350 if (nv_cmd & BIT_31)
2351 qla1280_nv_write(ha, NV_DATA_OUT);
2352 else
2353 qla1280_nv_write(ha, 0);
2354 nv_cmd <<= 1;
2355 }
2356
2357 /* Read data from NVRAM. */
2358
2359 for (cnt = 0; cnt < 16; cnt++) {
2360 WRT_REG_WORD(®->nvram, (NV_SELECT | NV_CLOCK));
2361 RD_REG_WORD(®->id_l); /* Flush PCI write */
2362 NVRAM_DELAY();
2363 data <<= 1;
2364 reg_data = RD_REG_WORD(®->nvram);
2365 if (reg_data & NV_DATA_IN)
2366 data |= BIT_0;
2367 WRT_REG_WORD(®->nvram, NV_SELECT);
2368 RD_REG_WORD(®->id_l); /* Flush PCI write */
2369 NVRAM_DELAY();
2370 }
2371
2372 /* Deselect chip. */
2373
2374 WRT_REG_WORD(®->nvram, NV_DESELECT);
2375 RD_REG_WORD(®->id_l); /* Flush PCI write */
2376 NVRAM_DELAY();
2377
2378 return data;
2379}
2380
2381static void
2382qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
2383{
2384 struct device_reg __iomem *reg = ha->iobase;
2385
2386 WRT_REG_WORD(®->nvram, data | NV_SELECT);
2387 RD_REG_WORD(®->id_l); /* Flush PCI write */
2388 NVRAM_DELAY();
2389 WRT_REG_WORD(®->nvram, data | NV_SELECT | NV_CLOCK);
2390 RD_REG_WORD(®->id_l); /* Flush PCI write */
2391 NVRAM_DELAY();
2392 WRT_REG_WORD(®->nvram, data | NV_SELECT);
2393 RD_REG_WORD(®->id_l); /* Flush PCI write */
2394 NVRAM_DELAY();
2395}
2396
2397/*
2398 * Mailbox Command
2399 * Issue mailbox command and waits for completion.
2400 *
2401 * Input:
2402 * ha = adapter block pointer.
2403 * mr = mailbox registers to load.
2404 * mb = data pointer for mailbox registers.
2405 *
2406 * Output:
2407 * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
2408 *
2409 * Returns:
2410 * 0 = success
2411 */
2412static int
2413qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
2414{
2415 struct device_reg __iomem *reg = ha->iobase;
2416 int status = 0;
2417 int cnt;
2418 uint16_t *optr, *iptr;
2419 uint16_t __iomem *mptr;
2420 DECLARE_COMPLETION_ONSTACK(wait);
2421
2422 ENTER("qla1280_mailbox_command");
2423
2424 if (ha->mailbox_wait) {
2425 printk(KERN_ERR "Warning mailbox wait already in use!\n");
2426 }
2427 ha->mailbox_wait = &wait;
2428
2429 /*
2430 * We really should start out by verifying that the mailbox is
2431 * available before starting sending the command data
2432 */
2433 /* Load mailbox registers. */
2434 mptr = (uint16_t __iomem *) ®->mailbox0;
2435 iptr = mb;
2436 for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
2437 if (mr & BIT_0) {
2438 WRT_REG_WORD(mptr, (*iptr));
2439 }
2440
2441 mr >>= 1;
2442 mptr++;
2443 iptr++;
2444 }
2445
2446 /* Issue set host interrupt command. */
2447
2448 /* set up a timer just in case we're really jammed */
2449 timer_setup(&ha->mailbox_timer, qla1280_mailbox_timeout, 0);
2450 mod_timer(&ha->mailbox_timer, jiffies + 20 * HZ);
2451
2452 spin_unlock_irq(ha->host->host_lock);
2453 WRT_REG_WORD(®->host_cmd, HC_SET_HOST_INT);
2454 qla1280_debounce_register(®->istatus);
2455
2456 wait_for_completion(&wait);
2457 del_timer_sync(&ha->mailbox_timer);
2458
2459 spin_lock_irq(ha->host->host_lock);
2460
2461 ha->mailbox_wait = NULL;
2462
2463 /* Check for mailbox command timeout. */
2464 if (ha->mailbox_out[0] != MBS_CMD_CMP) {
2465 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
2466 "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
2467 "0x%04x\n",
2468 mb[0], ha->mailbox_out[0], RD_REG_WORD(®->istatus));
2469 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
2470 RD_REG_WORD(®->mailbox0), RD_REG_WORD(®->mailbox1),
2471 RD_REG_WORD(®->mailbox2), RD_REG_WORD(®->mailbox3));
2472 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
2473 RD_REG_WORD(®->mailbox4), RD_REG_WORD(®->mailbox5),
2474 RD_REG_WORD(®->mailbox6), RD_REG_WORD(®->mailbox7));
2475 status = 1;
2476 }
2477
2478 /* Load return mailbox registers. */
2479 optr = mb;
2480 iptr = (uint16_t *) &ha->mailbox_out[0];
2481 mr = MAILBOX_REGISTER_COUNT;
2482 memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
2483
2484 if (ha->flags.reset_marker)
2485 qla1280_rst_aen(ha);
2486
2487 if (status)
2488 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
2489 "0x%x ****\n", mb[0]);
2490
2491 LEAVE("qla1280_mailbox_command");
2492 return status;
2493}
2494
2495/*
2496 * qla1280_poll
2497 * Polls ISP for interrupts.
2498 *
2499 * Input:
2500 * ha = adapter block pointer.
2501 */
2502static void
2503qla1280_poll(struct scsi_qla_host *ha)
2504{
2505 struct device_reg __iomem *reg = ha->iobase;
2506 uint16_t data;
2507 LIST_HEAD(done_q);
2508
2509 /* ENTER("qla1280_poll"); */
2510
2511 /* Check for pending interrupts. */
2512 data = RD_REG_WORD(®->istatus);
2513 if (data & RISC_INT)
2514 qla1280_isr(ha, &done_q);
2515
2516 if (!ha->mailbox_wait) {
2517 if (ha->flags.reset_marker)
2518 qla1280_rst_aen(ha);
2519 }
2520
2521 if (!list_empty(&done_q))
2522 qla1280_done(ha);
2523
2524 /* LEAVE("qla1280_poll"); */
2525}
2526
2527/*
2528 * qla1280_bus_reset
2529 * Issue SCSI bus reset.
2530 *
2531 * Input:
2532 * ha = adapter block pointer.
2533 * bus = SCSI bus number.
2534 *
2535 * Returns:
2536 * 0 = success
2537 */
2538static int
2539qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
2540{
2541 uint16_t mb[MAILBOX_REGISTER_COUNT];
2542 uint16_t reset_delay;
2543 int status;
2544
2545 dprintk(3, "qla1280_bus_reset: entered\n");
2546
2547 if (qla1280_verbose)
2548 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
2549 ha->host_no, bus);
2550
2551 reset_delay = ha->bus_settings[bus].bus_reset_delay;
2552 mb[0] = MBC_BUS_RESET;
2553 mb[1] = reset_delay;
2554 mb[2] = (uint16_t) bus;
2555 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2556
2557 if (status) {
2558 if (ha->bus_settings[bus].failed_reset_count > 2)
2559 ha->bus_settings[bus].scsi_bus_dead = 1;
2560 ha->bus_settings[bus].failed_reset_count++;
2561 } else {
2562 spin_unlock_irq(ha->host->host_lock);
2563 ssleep(reset_delay);
2564 spin_lock_irq(ha->host->host_lock);
2565
2566 ha->bus_settings[bus].scsi_bus_dead = 0;
2567 ha->bus_settings[bus].failed_reset_count = 0;
2568 ha->bus_settings[bus].reset_marker = 0;
2569 /* Issue marker command. */
2570 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
2571 }
2572
2573 /*
2574 * We should probably call qla1280_set_target_parameters()
2575 * here as well for all devices on the bus.
2576 */
2577
2578 if (status)
2579 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
2580 else
2581 dprintk(3, "qla1280_bus_reset: exiting normally\n");
2582
2583 return status;
2584}
2585
2586/*
2587 * qla1280_device_reset
2588 * Issue bus device reset message to the target.
2589 *
2590 * Input:
2591 * ha = adapter block pointer.
2592 * bus = SCSI BUS number.
2593 * target = SCSI ID.
2594 *
2595 * Returns:
2596 * 0 = success
2597 */
2598static int
2599qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
2600{
2601 uint16_t mb[MAILBOX_REGISTER_COUNT];
2602 int status;
2603
2604 ENTER("qla1280_device_reset");
2605
2606 mb[0] = MBC_ABORT_TARGET;
2607 mb[1] = (bus ? (target | BIT_7) : target) << 8;
2608 mb[2] = 1;
2609 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2610
2611 /* Issue marker command. */
2612 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
2613
2614 if (status)
2615 dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
2616
2617 LEAVE("qla1280_device_reset");
2618 return status;
2619}
2620
2621/*
2622 * qla1280_abort_command
2623 * Abort command aborts a specified IOCB.
2624 *
2625 * Input:
2626 * ha = adapter block pointer.
2627 * sp = SB structure pointer.
2628 *
2629 * Returns:
2630 * 0 = success
2631 */
2632static int
2633qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
2634{
2635 uint16_t mb[MAILBOX_REGISTER_COUNT];
2636 unsigned int bus, target, lun;
2637 int status;
2638
2639 ENTER("qla1280_abort_command");
2640
2641 bus = SCSI_BUS_32(sp->cmd);
2642 target = SCSI_TCN_32(sp->cmd);
2643 lun = SCSI_LUN_32(sp->cmd);
2644
2645 sp->flags |= SRB_ABORT_PENDING;
2646
2647 mb[0] = MBC_ABORT_COMMAND;
2648 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2649 mb[2] = handle >> 16;
2650 mb[3] = handle & 0xffff;
2651 status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
2652
2653 if (status) {
2654 dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
2655 sp->flags &= ~SRB_ABORT_PENDING;
2656 }
2657
2658
2659 LEAVE("qla1280_abort_command");
2660 return status;
2661}
2662
2663/*
2664 * qla1280_reset_adapter
2665 * Reset adapter.
2666 *
2667 * Input:
2668 * ha = adapter block pointer.
2669 */
2670static void
2671qla1280_reset_adapter(struct scsi_qla_host *ha)
2672{
2673 struct device_reg __iomem *reg = ha->iobase;
2674
2675 ENTER("qla1280_reset_adapter");
2676
2677 /* Disable ISP chip */
2678 ha->flags.online = 0;
2679 WRT_REG_WORD(®->ictrl, ISP_RESET);
2680 WRT_REG_WORD(®->host_cmd,
2681 HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
2682 RD_REG_WORD(®->id_l); /* Flush PCI write */
2683
2684 LEAVE("qla1280_reset_adapter");
2685}
2686
2687/*
2688 * Issue marker command.
2689 * Function issues marker IOCB.
2690 *
2691 * Input:
2692 * ha = adapter block pointer.
2693 * bus = SCSI BUS number
2694 * id = SCSI ID
2695 * lun = SCSI LUN
2696 * type = marker modifier
2697 */
2698static void
2699qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
2700{
2701 struct mrk_entry *pkt;
2702
2703 ENTER("qla1280_marker");
2704
2705 /* Get request packet. */
2706 if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
2707 pkt->entry_type = MARKER_TYPE;
2708 pkt->lun = (uint8_t) lun;
2709 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
2710 pkt->modifier = type;
2711 pkt->entry_status = 0;
2712
2713 /* Issue command to ISP */
2714 qla1280_isp_cmd(ha);
2715 }
2716
2717 LEAVE("qla1280_marker");
2718}
2719
2720
2721/*
2722 * qla1280_64bit_start_scsi
2723 * The start SCSI is responsible for building request packets on
2724 * request ring and modifying ISP input pointer.
2725 *
2726 * Input:
2727 * ha = adapter block pointer.
2728 * sp = SB structure pointer.
2729 *
2730 * Returns:
2731 * 0 = success, was able to issue command.
2732 */
2733#ifdef QLA_64BIT_PTR
2734static int
2735qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2736{
2737 struct device_reg __iomem *reg = ha->iobase;
2738 struct scsi_cmnd *cmd = sp->cmd;
2739 cmd_a64_entry_t *pkt;
2740 __le32 *dword_ptr;
2741 dma_addr_t dma_handle;
2742 int status = 0;
2743 int cnt;
2744 int req_cnt;
2745 int seg_cnt;
2746 u8 dir;
2747
2748 ENTER("qla1280_64bit_start_scsi:");
2749
2750 /* Calculate number of entries and segments required. */
2751 req_cnt = 1;
2752 seg_cnt = scsi_dma_map(cmd);
2753 if (seg_cnt > 0) {
2754 if (seg_cnt > 2) {
2755 req_cnt += (seg_cnt - 2) / 5;
2756 if ((seg_cnt - 2) % 5)
2757 req_cnt++;
2758 }
2759 } else if (seg_cnt < 0) {
2760 status = 1;
2761 goto out;
2762 }
2763
2764 if ((req_cnt + 2) >= ha->req_q_cnt) {
2765 /* Calculate number of free request entries. */
2766 cnt = RD_REG_WORD(®->mailbox4);
2767 if (ha->req_ring_index < cnt)
2768 ha->req_q_cnt = cnt - ha->req_ring_index;
2769 else
2770 ha->req_q_cnt =
2771 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
2772 }
2773
2774 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
2775 ha->req_q_cnt, seg_cnt);
2776
2777 /* If room for request in request ring. */
2778 if ((req_cnt + 2) >= ha->req_q_cnt) {
2779 status = SCSI_MLQUEUE_HOST_BUSY;
2780 dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt="
2781 "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
2782 req_cnt);
2783 goto out;
2784 }
2785
2786 /* Check for room in outstanding command list. */
2787 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
2788 ha->outstanding_cmds[cnt] != NULL; cnt++);
2789
2790 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
2791 status = SCSI_MLQUEUE_HOST_BUSY;
2792 dprintk(2, "qla1280_start_scsi: NO ROOM IN "
2793 "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
2794 goto out;
2795 }
2796
2797 ha->outstanding_cmds[cnt] = sp;
2798 ha->req_q_cnt -= req_cnt;
2799 CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
2800
2801 dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
2802 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
2803 dprintk(2, " bus %i, target %i, lun %i\n",
2804 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2805 qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
2806
2807 /*
2808 * Build command packet.
2809 */
2810 pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
2811
2812 pkt->entry_type = COMMAND_A64_TYPE;
2813 pkt->entry_count = (uint8_t) req_cnt;
2814 pkt->sys_define = (uint8_t) ha->req_ring_index;
2815 pkt->entry_status = 0;
2816 pkt->handle = cpu_to_le32(cnt);
2817
2818 /* Zero out remaining portion of packet. */
2819 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
2820
2821 /* Set ISP command timeout. */
2822 pkt->timeout = cpu_to_le16(scsi_cmd_to_rq(cmd)->timeout / HZ);
2823
2824 /* Set device target ID and LUN */
2825 pkt->lun = SCSI_LUN_32(cmd);
2826 pkt->target = SCSI_BUS_32(cmd) ?
2827 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
2828
2829 /* Enable simple tag queuing if device supports it. */
2830 if (cmd->device->simple_tags)
2831 pkt->control_flags |= cpu_to_le16(BIT_3);
2832
2833 /* Load SCSI command packet. */
2834 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
2835 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
2836 /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
2837
2838 /* Set transfer direction. */
2839 dir = qla1280_data_direction(cmd);
2840 pkt->control_flags |= cpu_to_le16(dir);
2841
2842 /* Set total data segment count. */
2843 pkt->dseg_count = cpu_to_le16(seg_cnt);
2844
2845 /*
2846 * Load data segments.
2847 */
2848 if (seg_cnt) { /* If data transfer. */
2849 struct scatterlist *sg, *s;
2850 int remseg = seg_cnt;
2851
2852 sg = scsi_sglist(cmd);
2853
2854 /* Setup packet address segment pointer. */
2855 dword_ptr = (u32 *)&pkt->dseg_0_address;
2856
2857 /* Load command entry data segments. */
2858 for_each_sg(sg, s, seg_cnt, cnt) {
2859 if (cnt == 2)
2860 break;
2861
2862 dma_handle = sg_dma_address(s);
2863 *dword_ptr++ =
2864 cpu_to_le32(lower_32_bits(dma_handle));
2865 *dword_ptr++ =
2866 cpu_to_le32(upper_32_bits(dma_handle));
2867 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
2868 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
2869 cpu_to_le32(upper_32_bits(dma_handle)),
2870 cpu_to_le32(lower_32_bits(dma_handle)),
2871 cpu_to_le32(sg_dma_len(sg_next(s))));
2872 remseg--;
2873 }
2874 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
2875 "command packet data - b %i, t %i, l %i \n",
2876 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
2877 SCSI_LUN_32(cmd));
2878 qla1280_dump_buffer(5, (char *)pkt,
2879 REQUEST_ENTRY_SIZE);
2880
2881 /*
2882 * Build continuation packets.
2883 */
2884 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
2885 "remains\n", seg_cnt);
2886
2887 while (remseg > 0) {
2888 /* Update sg start */
2889 sg = s;
2890 /* Adjust ring index. */
2891 ha->req_ring_index++;
2892 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2893 ha->req_ring_index = 0;
2894 ha->request_ring_ptr =
2895 ha->request_ring;
2896 } else
2897 ha->request_ring_ptr++;
2898
2899 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
2900
2901 /* Zero out packet. */
2902 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2903
2904 /* Load packet defaults. */
2905 ((struct cont_a64_entry *) pkt)->entry_type =
2906 CONTINUE_A64_TYPE;
2907 ((struct cont_a64_entry *) pkt)->entry_count = 1;
2908 ((struct cont_a64_entry *) pkt)->sys_define =
2909 (uint8_t)ha->req_ring_index;
2910 /* Setup packet address segment pointer. */
2911 dword_ptr =
2912 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
2913
2914 /* Load continuation entry data segments. */
2915 for_each_sg(sg, s, remseg, cnt) {
2916 if (cnt == 5)
2917 break;
2918 dma_handle = sg_dma_address(s);
2919 *dword_ptr++ =
2920 cpu_to_le32(lower_32_bits(dma_handle));
2921 *dword_ptr++ =
2922 cpu_to_le32(upper_32_bits(dma_handle));
2923 *dword_ptr++ =
2924 cpu_to_le32(sg_dma_len(s));
2925 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
2926 cpu_to_le32(upper_32_bits(dma_handle)),
2927 cpu_to_le32(lower_32_bits(dma_handle)),
2928 cpu_to_le32(sg_dma_len(s)));
2929 }
2930 remseg -= cnt;
2931 dprintk(5, "qla1280_64bit_start_scsi: "
2932 "continuation packet data - b %i, t "
2933 "%i, l %i \n", SCSI_BUS_32(cmd),
2934 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2935 qla1280_dump_buffer(5, (char *)pkt,
2936 REQUEST_ENTRY_SIZE);
2937 }
2938 } else { /* No data transfer */
2939 dprintk(5, "qla1280_64bit_start_scsi: No data, command "
2940 "packet data - b %i, t %i, l %i \n",
2941 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2942 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
2943 }
2944 /* Adjust ring index. */
2945 ha->req_ring_index++;
2946 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2947 ha->req_ring_index = 0;
2948 ha->request_ring_ptr = ha->request_ring;
2949 } else
2950 ha->request_ring_ptr++;
2951
2952 /* Set chip new ring index. */
2953 dprintk(2,
2954 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
2955 sp->flags |= SRB_SENT;
2956 ha->actthreads++;
2957 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
2958
2959 out:
2960 if (status)
2961 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
2962 else
2963 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
2964
2965 return status;
2966}
2967#else /* !QLA_64BIT_PTR */
2968
2969/*
2970 * qla1280_32bit_start_scsi
2971 * The start SCSI is responsible for building request packets on
2972 * request ring and modifying ISP input pointer.
2973 *
2974 * The Qlogic firmware interface allows every queue slot to have a SCSI
2975 * command and up to 4 scatter/gather (SG) entries. If we need more
2976 * than 4 SG entries, then continuation entries are used that can
2977 * hold another 7 entries each. The start routine determines if there
2978 * is eought empty slots then build the combination of requests to
2979 * fulfill the OS request.
2980 *
2981 * Input:
2982 * ha = adapter block pointer.
2983 * sp = SCSI Request Block structure pointer.
2984 *
2985 * Returns:
2986 * 0 = success, was able to issue command.
2987 */
2988static int
2989qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2990{
2991 struct device_reg __iomem *reg = ha->iobase;
2992 struct scsi_cmnd *cmd = sp->cmd;
2993 struct cmd_entry *pkt;
2994 __le32 *dword_ptr;
2995 int status = 0;
2996 int cnt;
2997 int req_cnt;
2998 int seg_cnt;
2999 u8 dir;
3000
3001 ENTER("qla1280_32bit_start_scsi");
3002
3003 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
3004 cmd->cmnd[0]);
3005
3006 /* Calculate number of entries and segments required. */
3007 req_cnt = 1;
3008 seg_cnt = scsi_dma_map(cmd);
3009 if (seg_cnt) {
3010 /*
3011 * if greater than four sg entries then we need to allocate
3012 * continuation entries
3013 */
3014 if (seg_cnt > 4) {
3015 req_cnt += (seg_cnt - 4) / 7;
3016 if ((seg_cnt - 4) % 7)
3017 req_cnt++;
3018 }
3019 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
3020 cmd, seg_cnt, req_cnt);
3021 } else if (seg_cnt < 0) {
3022 status = 1;
3023 goto out;
3024 }
3025
3026 if ((req_cnt + 2) >= ha->req_q_cnt) {
3027 /* Calculate number of free request entries. */
3028 cnt = RD_REG_WORD(®->mailbox4);
3029 if (ha->req_ring_index < cnt)
3030 ha->req_q_cnt = cnt - ha->req_ring_index;
3031 else
3032 ha->req_q_cnt =
3033 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3034 }
3035
3036 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
3037 ha->req_q_cnt, seg_cnt);
3038 /* If room for request in request ring. */
3039 if ((req_cnt + 2) >= ha->req_q_cnt) {
3040 status = SCSI_MLQUEUE_HOST_BUSY;
3041 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
3042 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
3043 ha->req_q_cnt, req_cnt);
3044 goto out;
3045 }
3046
3047 /* Check for empty slot in outstanding command list. */
3048 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3049 ha->outstanding_cmds[cnt]; cnt++);
3050
3051 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
3052 status = SCSI_MLQUEUE_HOST_BUSY;
3053 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
3054 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
3055 goto out;
3056 }
3057
3058 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
3059 ha->outstanding_cmds[cnt] = sp;
3060 ha->req_q_cnt -= req_cnt;
3061
3062 /*
3063 * Build command packet.
3064 */
3065 pkt = (struct cmd_entry *) ha->request_ring_ptr;
3066
3067 pkt->entry_type = COMMAND_TYPE;
3068 pkt->entry_count = (uint8_t) req_cnt;
3069 pkt->sys_define = (uint8_t) ha->req_ring_index;
3070 pkt->entry_status = 0;
3071 pkt->handle = cpu_to_le32(cnt);
3072
3073 /* Zero out remaining portion of packet. */
3074 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3075
3076 /* Set ISP command timeout. */
3077 pkt->timeout = cpu_to_le16(scsi_cmd_to_rq(cmd)->timeout / HZ);
3078
3079 /* Set device target ID and LUN */
3080 pkt->lun = SCSI_LUN_32(cmd);
3081 pkt->target = SCSI_BUS_32(cmd) ?
3082 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3083
3084 /* Enable simple tag queuing if device supports it. */
3085 if (cmd->device->simple_tags)
3086 pkt->control_flags |= cpu_to_le16(BIT_3);
3087
3088 /* Load SCSI command packet. */
3089 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
3090 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
3091
3092 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3093 /* Set transfer direction. */
3094 dir = qla1280_data_direction(cmd);
3095 pkt->control_flags |= cpu_to_le16(dir);
3096
3097 /* Set total data segment count. */
3098 pkt->dseg_count = cpu_to_le16(seg_cnt);
3099
3100 /*
3101 * Load data segments.
3102 */
3103 if (seg_cnt) {
3104 struct scatterlist *sg, *s;
3105 int remseg = seg_cnt;
3106
3107 sg = scsi_sglist(cmd);
3108
3109 /* Setup packet address segment pointer. */
3110 dword_ptr = &pkt->dseg_0_address;
3111
3112 dprintk(3, "Building S/G data segments..\n");
3113 qla1280_dump_buffer(1, (char *)sg, 4 * 16);
3114
3115 /* Load command entry data segments. */
3116 for_each_sg(sg, s, seg_cnt, cnt) {
3117 if (cnt == 4)
3118 break;
3119 *dword_ptr++ =
3120 cpu_to_le32(lower_32_bits(sg_dma_address(s)));
3121 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
3122 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
3123 (lower_32_bits(sg_dma_address(s))),
3124 (sg_dma_len(s)));
3125 remseg--;
3126 }
3127 /*
3128 * Build continuation packets.
3129 */
3130 dprintk(3, "S/G Building Continuation"
3131 "...seg_cnt=0x%x remains\n", seg_cnt);
3132 while (remseg > 0) {
3133 /* Continue from end point */
3134 sg = s;
3135 /* Adjust ring index. */
3136 ha->req_ring_index++;
3137 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3138 ha->req_ring_index = 0;
3139 ha->request_ring_ptr =
3140 ha->request_ring;
3141 } else
3142 ha->request_ring_ptr++;
3143
3144 pkt = (struct cmd_entry *)ha->request_ring_ptr;
3145
3146 /* Zero out packet. */
3147 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3148
3149 /* Load packet defaults. */
3150 ((struct cont_entry *) pkt)->
3151 entry_type = CONTINUE_TYPE;
3152 ((struct cont_entry *) pkt)->entry_count = 1;
3153
3154 ((struct cont_entry *) pkt)->sys_define =
3155 (uint8_t) ha->req_ring_index;
3156
3157 /* Setup packet address segment pointer. */
3158 dword_ptr =
3159 &((struct cont_entry *) pkt)->dseg_0_address;
3160
3161 /* Load continuation entry data segments. */
3162 for_each_sg(sg, s, remseg, cnt) {
3163 if (cnt == 7)
3164 break;
3165 *dword_ptr++ =
3166 cpu_to_le32(lower_32_bits(sg_dma_address(s)));
3167 *dword_ptr++ =
3168 cpu_to_le32(sg_dma_len(s));
3169 dprintk(1,
3170 "S/G Segment Cont. phys_addr=0x%x, "
3171 "len=0x%x\n",
3172 cpu_to_le32(lower_32_bits(sg_dma_address(s))),
3173 cpu_to_le32(sg_dma_len(s)));
3174 }
3175 remseg -= cnt;
3176 dprintk(5, "qla1280_32bit_start_scsi: "
3177 "continuation packet data - "
3178 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
3179 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3180 qla1280_dump_buffer(5, (char *)pkt,
3181 REQUEST_ENTRY_SIZE);
3182 }
3183 } else { /* No data transfer at all */
3184 dprintk(5, "qla1280_32bit_start_scsi: No data, command "
3185 "packet data - \n");
3186 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3187 }
3188 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
3189 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3190 REQUEST_ENTRY_SIZE);
3191
3192 /* Adjust ring index. */
3193 ha->req_ring_index++;
3194 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3195 ha->req_ring_index = 0;
3196 ha->request_ring_ptr = ha->request_ring;
3197 } else
3198 ha->request_ring_ptr++;
3199
3200 /* Set chip new ring index. */
3201 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
3202 "for pending command\n");
3203 sp->flags |= SRB_SENT;
3204 ha->actthreads++;
3205 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
3206
3207out:
3208 if (status)
3209 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
3210
3211 LEAVE("qla1280_32bit_start_scsi");
3212
3213 return status;
3214}
3215#endif
3216
3217/*
3218 * qla1280_req_pkt
3219 * Function is responsible for locking ring and
3220 * getting a zeroed out request packet.
3221 *
3222 * Input:
3223 * ha = adapter block pointer.
3224 *
3225 * Returns:
3226 * 0 = failed to get slot.
3227 */
3228static request_t *
3229qla1280_req_pkt(struct scsi_qla_host *ha)
3230{
3231 struct device_reg __iomem *reg = ha->iobase;
3232 request_t *pkt = NULL;
3233 int cnt;
3234 uint32_t timer;
3235
3236 ENTER("qla1280_req_pkt");
3237
3238 /*
3239 * This can be called from interrupt context, damn it!!!
3240 */
3241 /* Wait for 30 seconds for slot. */
3242 for (timer = 15000000; timer; timer--) {
3243 if (ha->req_q_cnt > 0) {
3244 /* Calculate number of free request entries. */
3245 cnt = RD_REG_WORD(®->mailbox4);
3246 if (ha->req_ring_index < cnt)
3247 ha->req_q_cnt = cnt - ha->req_ring_index;
3248 else
3249 ha->req_q_cnt =
3250 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3251 }
3252
3253 /* Found empty request ring slot? */
3254 if (ha->req_q_cnt > 0) {
3255 ha->req_q_cnt--;
3256 pkt = ha->request_ring_ptr;
3257
3258 /* Zero out packet. */
3259 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3260
3261 /*
3262 * How can this be right when we have a ring
3263 * size of 512???
3264 */
3265 /* Set system defined field. */
3266 pkt->sys_define = (uint8_t) ha->req_ring_index;
3267
3268 /* Set entry count. */
3269 pkt->entry_count = 1;
3270
3271 break;
3272 }
3273
3274 udelay(2); /* 10 */
3275
3276 /* Check for pending interrupts. */
3277 qla1280_poll(ha);
3278 }
3279
3280 if (!pkt)
3281 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
3282 else
3283 dprintk(3, "qla1280_req_pkt: exiting normally\n");
3284
3285 return pkt;
3286}
3287
3288/*
3289 * qla1280_isp_cmd
3290 * Function is responsible for modifying ISP input pointer.
3291 * Releases ring lock.
3292 *
3293 * Input:
3294 * ha = adapter block pointer.
3295 */
3296static void
3297qla1280_isp_cmd(struct scsi_qla_host *ha)
3298{
3299 struct device_reg __iomem *reg = ha->iobase;
3300
3301 ENTER("qla1280_isp_cmd");
3302
3303 dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
3304 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3305 REQUEST_ENTRY_SIZE);
3306
3307 /* Adjust ring index. */
3308 ha->req_ring_index++;
3309 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3310 ha->req_ring_index = 0;
3311 ha->request_ring_ptr = ha->request_ring;
3312 } else
3313 ha->request_ring_ptr++;
3314
3315 /*
3316 * Update request index to mailbox4 (Request Queue In).
3317 */
3318 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
3319
3320 LEAVE("qla1280_isp_cmd");
3321}
3322
3323/****************************************************************************/
3324/* Interrupt Service Routine. */
3325/****************************************************************************/
3326
3327/****************************************************************************
3328 * qla1280_isr
3329 * Calls I/O done on command completion.
3330 *
3331 * Input:
3332 * ha = adapter block pointer.
3333 * done_q = done queue.
3334 ****************************************************************************/
3335static void
3336qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
3337{
3338 struct device_reg __iomem *reg = ha->iobase;
3339 struct response *pkt;
3340 struct srb *sp = NULL;
3341 uint16_t mailbox[MAILBOX_REGISTER_COUNT];
3342 uint16_t *wptr;
3343 uint32_t index;
3344 u16 istatus;
3345
3346 ENTER("qla1280_isr");
3347
3348 istatus = RD_REG_WORD(®->istatus);
3349 if (!(istatus & (RISC_INT | PCI_INT)))
3350 return;
3351
3352 /* Save mailbox register 5 */
3353 mailbox[5] = RD_REG_WORD(®->mailbox5);
3354
3355 /* Check for mailbox interrupt. */
3356
3357 mailbox[0] = RD_REG_WORD_dmasync(®->semaphore);
3358
3359 if (mailbox[0] & BIT_0) {
3360 /* Get mailbox data. */
3361 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
3362
3363 wptr = &mailbox[0];
3364 *wptr++ = RD_REG_WORD(®->mailbox0);
3365 *wptr++ = RD_REG_WORD(®->mailbox1);
3366 *wptr = RD_REG_WORD(®->mailbox2);
3367 if (mailbox[0] != MBA_SCSI_COMPLETION) {
3368 wptr++;
3369 *wptr++ = RD_REG_WORD(®->mailbox3);
3370 *wptr++ = RD_REG_WORD(®->mailbox4);
3371 wptr++;
3372 *wptr++ = RD_REG_WORD(®->mailbox6);
3373 *wptr = RD_REG_WORD(®->mailbox7);
3374 }
3375
3376 /* Release mailbox registers. */
3377
3378 WRT_REG_WORD(®->semaphore, 0);
3379 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
3380
3381 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
3382 mailbox[0]);
3383
3384 /* Handle asynchronous event */
3385 switch (mailbox[0]) {
3386 case MBA_SCSI_COMPLETION: /* Response completion */
3387 dprintk(5, "qla1280_isr: mailbox SCSI response "
3388 "completion\n");
3389
3390 if (ha->flags.online) {
3391 /* Get outstanding command index. */
3392 index = mailbox[2] << 16 | mailbox[1];
3393
3394 /* Validate handle. */
3395 if (index < MAX_OUTSTANDING_COMMANDS)
3396 sp = ha->outstanding_cmds[index];
3397 else
3398 sp = NULL;
3399
3400 if (sp) {
3401 /* Free outstanding command slot. */
3402 ha->outstanding_cmds[index] = NULL;
3403
3404 /* Save ISP completion status */
3405 CMD_RESULT(sp->cmd) = 0;
3406 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3407
3408 /* Place block on done queue */
3409 list_add_tail(&sp->list, done_q);
3410 } else {
3411 /*
3412 * If we get here we have a real problem!
3413 */
3414 printk(KERN_WARNING
3415 "qla1280: ISP invalid handle\n");
3416 }
3417 }
3418 break;
3419
3420 case MBA_BUS_RESET: /* SCSI Bus Reset */
3421 ha->flags.reset_marker = 1;
3422 index = mailbox[6] & BIT_0;
3423 ha->bus_settings[index].reset_marker = 1;
3424
3425 printk(KERN_DEBUG "qla1280_isr(): index %i "
3426 "asynchronous BUS_RESET\n", index);
3427 break;
3428
3429 case MBA_SYSTEM_ERR: /* System Error */
3430 printk(KERN_WARNING
3431 "qla1280: ISP System Error - mbx1=%xh, mbx2="
3432 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
3433 mailbox[3]);
3434 break;
3435
3436 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
3437 printk(KERN_WARNING
3438 "qla1280: ISP Request Transfer Error\n");
3439 break;
3440
3441 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
3442 printk(KERN_WARNING
3443 "qla1280: ISP Response Transfer Error\n");
3444 break;
3445
3446 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
3447 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
3448 break;
3449
3450 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */
3451 dprintk(2,
3452 "qla1280_isr: asynchronous TIMEOUT_RESET\n");
3453 break;
3454
3455 case MBA_DEVICE_RESET: /* Bus Device Reset */
3456 printk(KERN_INFO "qla1280_isr(): asynchronous "
3457 "BUS_DEVICE_RESET\n");
3458
3459 ha->flags.reset_marker = 1;
3460 index = mailbox[6] & BIT_0;
3461 ha->bus_settings[index].reset_marker = 1;
3462 break;
3463
3464 case MBA_BUS_MODE_CHANGE:
3465 dprintk(2,
3466 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
3467 break;
3468
3469 default:
3470 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
3471 if (mailbox[0] < MBA_ASYNC_EVENT) {
3472 wptr = &mailbox[0];
3473 memcpy((uint16_t *) ha->mailbox_out, wptr,
3474 MAILBOX_REGISTER_COUNT *
3475 sizeof(uint16_t));
3476
3477 if(ha->mailbox_wait != NULL)
3478 complete(ha->mailbox_wait);
3479 }
3480 break;
3481 }
3482 } else {
3483 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
3484 }
3485
3486 /*
3487 * We will receive interrupts during mailbox testing prior to
3488 * the card being marked online, hence the double check.
3489 */
3490 if (!(ha->flags.online && !ha->mailbox_wait)) {
3491 dprintk(2, "qla1280_isr: Response pointer Error\n");
3492 goto out;
3493 }
3494
3495 if (mailbox[5] >= RESPONSE_ENTRY_CNT)
3496 goto out;
3497
3498 while (ha->rsp_ring_index != mailbox[5]) {
3499 pkt = ha->response_ring_ptr;
3500
3501 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
3502 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
3503 dprintk(5,"qla1280_isr: response packet data\n");
3504 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
3505
3506 if (pkt->entry_type == STATUS_TYPE) {
3507 if ((le16_to_cpu(pkt->scsi_status) & 0xff)
3508 || pkt->comp_status || pkt->entry_status) {
3509 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3510 "0x%x mailbox[5] = 0x%x, comp_status "
3511 "= 0x%x, scsi_status = 0x%x\n",
3512 ha->rsp_ring_index, mailbox[5],
3513 le16_to_cpu(pkt->comp_status),
3514 le16_to_cpu(pkt->scsi_status));
3515 }
3516 } else {
3517 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3518 "0x%x, mailbox[5] = 0x%x\n",
3519 ha->rsp_ring_index, mailbox[5]);
3520 dprintk(2, "qla1280_isr: response packet data\n");
3521 qla1280_dump_buffer(2, (char *)pkt,
3522 RESPONSE_ENTRY_SIZE);
3523 }
3524
3525 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
3526 dprintk(2, "status: Cmd %p, handle %i\n",
3527 ha->outstanding_cmds[pkt->handle]->cmd,
3528 pkt->handle);
3529 if (pkt->entry_type == STATUS_TYPE)
3530 qla1280_status_entry(ha, pkt, done_q);
3531 else
3532 qla1280_error_entry(ha, pkt, done_q);
3533 /* Adjust ring index. */
3534 ha->rsp_ring_index++;
3535 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
3536 ha->rsp_ring_index = 0;
3537 ha->response_ring_ptr = ha->response_ring;
3538 } else
3539 ha->response_ring_ptr++;
3540 WRT_REG_WORD(®->mailbox5, ha->rsp_ring_index);
3541 }
3542 }
3543
3544 out:
3545 LEAVE("qla1280_isr");
3546}
3547
3548/*
3549 * qla1280_rst_aen
3550 * Processes asynchronous reset.
3551 *
3552 * Input:
3553 * ha = adapter block pointer.
3554 */
3555static void
3556qla1280_rst_aen(struct scsi_qla_host *ha)
3557{
3558 uint8_t bus;
3559
3560 ENTER("qla1280_rst_aen");
3561
3562 if (ha->flags.online && !ha->flags.reset_active &&
3563 !ha->flags.abort_isp_active) {
3564 ha->flags.reset_active = 1;
3565 while (ha->flags.reset_marker) {
3566 /* Issue marker command. */
3567 ha->flags.reset_marker = 0;
3568 for (bus = 0; bus < ha->ports &&
3569 !ha->flags.reset_marker; bus++) {
3570 if (ha->bus_settings[bus].reset_marker) {
3571 ha->bus_settings[bus].reset_marker = 0;
3572 qla1280_marker(ha, bus, 0, 0,
3573 MK_SYNC_ALL);
3574 }
3575 }
3576 }
3577 }
3578
3579 LEAVE("qla1280_rst_aen");
3580}
3581
3582
3583/*
3584 * qla1280_status_entry
3585 * Processes received ISP status entry.
3586 *
3587 * Input:
3588 * ha = adapter block pointer.
3589 * pkt = entry pointer.
3590 * done_q = done queue.
3591 */
3592static void
3593qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
3594 struct list_head *done_q)
3595{
3596 int sense_sz;
3597 struct srb *sp;
3598 struct scsi_cmnd *cmd;
3599 uint32_t handle = le32_to_cpu(pkt->handle);
3600 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
3601 uint16_t comp_status = le16_to_cpu(pkt->comp_status);
3602
3603 ENTER("qla1280_status_entry");
3604
3605 /* Validate handle. */
3606 if (handle < MAX_OUTSTANDING_COMMANDS)
3607 sp = ha->outstanding_cmds[handle];
3608 else
3609 sp = NULL;
3610
3611 if (!sp) {
3612 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
3613 goto out;
3614 }
3615
3616 /* Free outstanding command slot. */
3617 ha->outstanding_cmds[handle] = NULL;
3618
3619 cmd = sp->cmd;
3620
3621 if (comp_status || scsi_status) {
3622 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
3623 "0x%x, handle = 0x%x\n", comp_status,
3624 scsi_status, handle);
3625 }
3626
3627 /* Target busy or queue full */
3628 if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL ||
3629 (scsi_status & 0xFF) == SAM_STAT_BUSY) {
3630 CMD_RESULT(cmd) = scsi_status & 0xff;
3631 } else {
3632
3633 /* Save ISP completion status */
3634 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
3635
3636 if (scsi_status & SAM_STAT_CHECK_CONDITION) {
3637 if (comp_status != CS_ARS_FAILED) {
3638 uint16_t req_sense_length =
3639 le16_to_cpu(pkt->req_sense_length);
3640 if (req_sense_length < CMD_SNSLEN(cmd))
3641 sense_sz = req_sense_length;
3642 else
3643 /*
3644 * scsi_cmnd->sense_buffer is
3645 * 64 bytes, why only copy 63?
3646 * This looks wrong! /Jes
3647 */
3648 sense_sz = CMD_SNSLEN(cmd) - 1;
3649
3650 memcpy(cmd->sense_buffer,
3651 &pkt->req_sense_data, sense_sz);
3652 } else
3653 sense_sz = 0;
3654 memset(cmd->sense_buffer + sense_sz, 0,
3655 SCSI_SENSE_BUFFERSIZE - sense_sz);
3656
3657 dprintk(2, "qla1280_status_entry: Check "
3658 "condition Sense data, b %i, t %i, "
3659 "l %i\n", SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
3660 SCSI_LUN_32(cmd));
3661 if (sense_sz)
3662 qla1280_dump_buffer(2,
3663 (char *)cmd->sense_buffer,
3664 sense_sz);
3665 }
3666 }
3667
3668 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3669
3670 /* Place command on done queue. */
3671 list_add_tail(&sp->list, done_q);
3672 out:
3673 LEAVE("qla1280_status_entry");
3674}
3675
3676/*
3677 * qla1280_error_entry
3678 * Processes error entry.
3679 *
3680 * Input:
3681 * ha = adapter block pointer.
3682 * pkt = entry pointer.
3683 * done_q = done queue.
3684 */
3685static void
3686qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
3687 struct list_head *done_q)
3688{
3689 struct srb *sp;
3690 uint32_t handle = le32_to_cpu(pkt->handle);
3691
3692 ENTER("qla1280_error_entry");
3693
3694 if (pkt->entry_status & BIT_3)
3695 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
3696 else if (pkt->entry_status & BIT_2)
3697 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
3698 else if (pkt->entry_status & BIT_1)
3699 dprintk(2, "qla1280_error_entry: FULL flag error\n");
3700 else
3701 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
3702
3703 /* Validate handle. */
3704 if (handle < MAX_OUTSTANDING_COMMANDS)
3705 sp = ha->outstanding_cmds[handle];
3706 else
3707 sp = NULL;
3708
3709 if (sp) {
3710 /* Free outstanding command slot. */
3711 ha->outstanding_cmds[handle] = NULL;
3712
3713 /* Bad payload or header */
3714 if (pkt->entry_status & (BIT_3 + BIT_2)) {
3715 /* Bad payload or header, set error status. */
3716 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
3717 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3718 } else if (pkt->entry_status & BIT_1) { /* FULL flag */
3719 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
3720 } else {
3721 /* Set error status. */
3722 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3723 }
3724
3725 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3726
3727 /* Place command on done queue. */
3728 list_add_tail(&sp->list, done_q);
3729 }
3730#ifdef QLA_64BIT_PTR
3731 else if (pkt->entry_type == COMMAND_A64_TYPE) {
3732 printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
3733 }
3734#endif
3735
3736 LEAVE("qla1280_error_entry");
3737}
3738
3739/*
3740 * qla1280_abort_isp
3741 * Resets ISP and aborts all outstanding commands.
3742 *
3743 * Input:
3744 * ha = adapter block pointer.
3745 *
3746 * Returns:
3747 * 0 = success
3748 */
3749static int
3750qla1280_abort_isp(struct scsi_qla_host *ha)
3751{
3752 struct device_reg __iomem *reg = ha->iobase;
3753 struct srb *sp;
3754 int status = 0;
3755 int cnt;
3756 int bus;
3757
3758 ENTER("qla1280_abort_isp");
3759
3760 if (ha->flags.abort_isp_active || !ha->flags.online)
3761 goto out;
3762
3763 ha->flags.abort_isp_active = 1;
3764
3765 /* Disable ISP interrupts. */
3766 qla1280_disable_intrs(ha);
3767 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC);
3768 RD_REG_WORD(®->id_l);
3769
3770 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
3771 ha->host_no);
3772 /* Dequeue all commands in outstanding command list. */
3773 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3774 struct scsi_cmnd *cmd;
3775 sp = ha->outstanding_cmds[cnt];
3776 if (sp) {
3777 cmd = sp->cmd;
3778 CMD_RESULT(cmd) = DID_RESET << 16;
3779 CMD_HANDLE(cmd) = COMPLETED_HANDLE;
3780 ha->outstanding_cmds[cnt] = NULL;
3781 list_add_tail(&sp->list, &ha->done_q);
3782 }
3783 }
3784
3785 qla1280_done(ha);
3786
3787 status = qla1280_load_firmware(ha);
3788 if (status)
3789 goto out;
3790
3791 /* Setup adapter based on NVRAM parameters. */
3792 qla1280_nvram_config (ha);
3793
3794 status = qla1280_init_rings(ha);
3795 if (status)
3796 goto out;
3797
3798 /* Issue SCSI reset. */
3799 for (bus = 0; bus < ha->ports; bus++)
3800 qla1280_bus_reset(ha, bus);
3801
3802 ha->flags.abort_isp_active = 0;
3803 out:
3804 if (status) {
3805 printk(KERN_WARNING
3806 "qla1280: ISP error recovery failed, board disabled");
3807 qla1280_reset_adapter(ha);
3808 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
3809 }
3810
3811 LEAVE("qla1280_abort_isp");
3812 return status;
3813}
3814
3815
3816/*
3817 * qla1280_debounce_register
3818 * Debounce register.
3819 *
3820 * Input:
3821 * port = register address.
3822 *
3823 * Returns:
3824 * register value.
3825 */
3826static u16
3827qla1280_debounce_register(volatile u16 __iomem * addr)
3828{
3829 volatile u16 ret;
3830 volatile u16 ret2;
3831
3832 ret = RD_REG_WORD(addr);
3833 ret2 = RD_REG_WORD(addr);
3834
3835 if (ret == ret2)
3836 return ret;
3837
3838 do {
3839 cpu_relax();
3840 ret = RD_REG_WORD(addr);
3841 ret2 = RD_REG_WORD(addr);
3842 } while (ret != ret2);
3843
3844 return ret;
3845}
3846
3847
3848/************************************************************************
3849 * qla1280_check_for_dead_scsi_bus *
3850 * *
3851 * This routine checks for a dead SCSI bus *
3852 ************************************************************************/
3853#define SET_SXP_BANK 0x0100
3854#define SCSI_PHASE_INVALID 0x87FF
3855static int
3856qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
3857{
3858 uint16_t config_reg, scsi_control;
3859 struct device_reg __iomem *reg = ha->iobase;
3860
3861 if (ha->bus_settings[bus].scsi_bus_dead) {
3862 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC);
3863 config_reg = RD_REG_WORD(®->cfg_1);
3864 WRT_REG_WORD(®->cfg_1, SET_SXP_BANK);
3865 scsi_control = RD_REG_WORD(®->scsiControlPins);
3866 WRT_REG_WORD(®->cfg_1, config_reg);
3867 WRT_REG_WORD(®->host_cmd, HC_RELEASE_RISC);
3868
3869 if (scsi_control == SCSI_PHASE_INVALID) {
3870 ha->bus_settings[bus].scsi_bus_dead = 1;
3871 return 1; /* bus is dead */
3872 } else {
3873 ha->bus_settings[bus].scsi_bus_dead = 0;
3874 ha->bus_settings[bus].failed_reset_count = 0;
3875 }
3876 }
3877 return 0; /* bus is not dead */
3878}
3879
3880static void
3881qla1280_get_target_parameters(struct scsi_qla_host *ha,
3882 struct scsi_device *device)
3883{
3884 uint16_t mb[MAILBOX_REGISTER_COUNT];
3885 int bus, target, lun;
3886
3887 bus = device->channel;
3888 target = device->id;
3889 lun = device->lun;
3890
3891
3892 mb[0] = MBC_GET_TARGET_PARAMETERS;
3893 mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
3894 mb[1] <<= 8;
3895 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
3896 &mb[0]);
3897
3898 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
3899
3900 if (mb[3] != 0) {
3901 printk(KERN_CONT " Sync: period %d, offset %d",
3902 (mb[3] & 0xff), (mb[3] >> 8));
3903 if (mb[2] & BIT_13)
3904 printk(KERN_CONT ", Wide");
3905 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
3906 printk(KERN_CONT ", DT");
3907 } else
3908 printk(KERN_CONT " Async");
3909
3910 if (device->simple_tags)
3911 printk(KERN_CONT ", Tagged queuing: depth %d", device->queue_depth);
3912 printk(KERN_CONT "\n");
3913}
3914
3915
3916#if DEBUG_QLA1280
3917static void
3918__qla1280_dump_buffer(char *b, int size)
3919{
3920 int cnt;
3921 u8 c;
3922
3923 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah "
3924 "Bh Ch Dh Eh Fh\n");
3925 printk(KERN_DEBUG "---------------------------------------------"
3926 "------------------\n");
3927
3928 for (cnt = 0; cnt < size;) {
3929 c = *b++;
3930
3931 printk("0x%02x", c);
3932 cnt++;
3933 if (!(cnt % 16))
3934 printk("\n");
3935 else
3936 printk(" ");
3937 }
3938 if (cnt % 16)
3939 printk("\n");
3940}
3941
3942/**************************************************************************
3943 * ql1280_print_scsi_cmd
3944 *
3945 **************************************************************************/
3946static void
3947__qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
3948{
3949 struct scsi_qla_host *ha;
3950 struct Scsi_Host *host = CMD_HOST(cmd);
3951 struct srb *sp;
3952 /* struct scatterlist *sg; */
3953
3954 int i;
3955 ha = (struct scsi_qla_host *)host->hostdata;
3956
3957 sp = scsi_cmd_priv(cmd);
3958 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
3959 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
3960 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
3961 CMD_CDBLEN(cmd));
3962 printk(" CDB = ");
3963 for (i = 0; i < cmd->cmd_len; i++) {
3964 printk("0x%02x ", cmd->cmnd[i]);
3965 }
3966 printk(" seg_cnt =%d\n", scsi_sg_count(cmd));
3967 printk(" request buffer=0x%p, request buffer len=0x%x\n",
3968 scsi_sglist(cmd), scsi_bufflen(cmd));
3969 /* if (cmd->use_sg)
3970 {
3971 sg = (struct scatterlist *) cmd->request_buffer;
3972 printk(" SG buffer: \n");
3973 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
3974 } */
3975 printk(" tag=%d, transfersize=0x%x \n",
3976 scsi_cmd_to_rq(cmd)->tag, cmd->transfersize);
3977 printk(" underflow size = 0x%x, direction=0x%x\n",
3978 cmd->underflow, cmd->sc_data_direction);
3979}
3980
3981/**************************************************************************
3982 * ql1280_dump_device
3983 *
3984 **************************************************************************/
3985static void
3986ql1280_dump_device(struct scsi_qla_host *ha)
3987{
3988
3989 struct scsi_cmnd *cp;
3990 struct srb *sp;
3991 int i;
3992
3993 printk(KERN_DEBUG "Outstanding Commands on controller:\n");
3994
3995 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
3996 if ((sp = ha->outstanding_cmds[i]) == NULL)
3997 continue;
3998 if ((cp = sp->cmd) == NULL)
3999 continue;
4000 qla1280_print_scsi_cmd(1, cp);
4001 }
4002}
4003#endif
4004
4005
4006enum tokens {
4007 TOKEN_NVRAM,
4008 TOKEN_SYNC,
4009 TOKEN_WIDE,
4010 TOKEN_PPR,
4011 TOKEN_VERBOSE,
4012 TOKEN_DEBUG,
4013};
4014
4015struct setup_tokens {
4016 char *token;
4017 int val;
4018};
4019
4020static struct setup_tokens setup_token[] __initdata =
4021{
4022 { "nvram", TOKEN_NVRAM },
4023 { "sync", TOKEN_SYNC },
4024 { "wide", TOKEN_WIDE },
4025 { "ppr", TOKEN_PPR },
4026 { "verbose", TOKEN_VERBOSE },
4027 { "debug", TOKEN_DEBUG },
4028};
4029
4030
4031/**************************************************************************
4032 * qla1280_setup
4033 *
4034 * Handle boot parameters. This really needs to be changed so one
4035 * can specify per adapter parameters.
4036 **************************************************************************/
4037static int __init
4038qla1280_setup(char *s)
4039{
4040 char *cp, *ptr;
4041 unsigned long val;
4042
4043 cp = s;
4044
4045 while (cp && (ptr = strchr(cp, ':'))) {
4046 ptr++;
4047 if (!strcmp(ptr, "yes")) {
4048 val = 0x10000;
4049 ptr += 3;
4050 } else if (!strcmp(ptr, "no")) {
4051 val = 0;
4052 ptr += 2;
4053 } else
4054 val = simple_strtoul(ptr, &ptr, 0);
4055
4056 switch (qla1280_get_token(cp)) {
4057 case TOKEN_NVRAM:
4058 if (!val)
4059 driver_setup.no_nvram = 1;
4060 break;
4061 case TOKEN_SYNC:
4062 if (!val)
4063 driver_setup.no_sync = 1;
4064 else if (val != 0x10000)
4065 driver_setup.sync_mask = val;
4066 break;
4067 case TOKEN_WIDE:
4068 if (!val)
4069 driver_setup.no_wide = 1;
4070 else if (val != 0x10000)
4071 driver_setup.wide_mask = val;
4072 break;
4073 case TOKEN_PPR:
4074 if (!val)
4075 driver_setup.no_ppr = 1;
4076 else if (val != 0x10000)
4077 driver_setup.ppr_mask = val;
4078 break;
4079 case TOKEN_VERBOSE:
4080 qla1280_verbose = val;
4081 break;
4082 default:
4083 printk(KERN_INFO "qla1280: unknown boot option %s\n",
4084 cp);
4085 }
4086
4087 cp = strchr(ptr, ';');
4088 if (cp)
4089 cp++;
4090 else {
4091 break;
4092 }
4093 }
4094 return 1;
4095}
4096
4097
4098static int __init
4099qla1280_get_token(char *str)
4100{
4101 char *sep;
4102 long ret = -1;
4103 int i;
4104
4105 sep = strchr(str, ':');
4106
4107 if (sep) {
4108 for (i = 0; i < ARRAY_SIZE(setup_token); i++) {
4109 if (!strncmp(setup_token[i].token, str, (sep - str))) {
4110 ret = setup_token[i].val;
4111 break;
4112 }
4113 }
4114 }
4115
4116 return ret;
4117}
4118
4119
4120static const struct scsi_host_template qla1280_driver_template = {
4121 .module = THIS_MODULE,
4122 .proc_name = "qla1280",
4123 .name = "Qlogic ISP 1280/12160",
4124 .info = qla1280_info,
4125 .slave_configure = qla1280_slave_configure,
4126 .queuecommand = qla1280_queuecommand,
4127 .eh_abort_handler = qla1280_eh_abort,
4128 .eh_device_reset_handler= qla1280_eh_device_reset,
4129 .eh_bus_reset_handler = qla1280_eh_bus_reset,
4130 .eh_host_reset_handler = qla1280_eh_adapter_reset,
4131 .bios_param = qla1280_biosparam,
4132 .can_queue = MAX_OUTSTANDING_COMMANDS,
4133 .this_id = -1,
4134 .sg_tablesize = SG_ALL,
4135 .cmd_size = sizeof(struct srb),
4136};
4137
4138
4139static int
4140qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4141{
4142 int devnum = id->driver_data;
4143 struct qla_boards *bdp = &ql1280_board_tbl[devnum];
4144 struct Scsi_Host *host;
4145 struct scsi_qla_host *ha;
4146 int error = -ENODEV;
4147
4148 /* Bypass all AMI SUBSYS VENDOR IDs */
4149 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
4150 printk(KERN_INFO
4151 "qla1280: Skipping AMI SubSys Vendor ID Chip\n");
4152 goto error;
4153 }
4154
4155 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
4156 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
4157
4158 if (pci_enable_device(pdev)) {
4159 printk(KERN_WARNING
4160 "qla1280: Failed to enabled pci device, aborting.\n");
4161 goto error;
4162 }
4163
4164 pci_set_master(pdev);
4165
4166 error = -ENOMEM;
4167 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
4168 if (!host) {
4169 printk(KERN_WARNING
4170 "qla1280: Failed to register host, aborting.\n");
4171 goto error_disable_device;
4172 }
4173
4174 ha = (struct scsi_qla_host *)host->hostdata;
4175 memset(ha, 0, sizeof(struct scsi_qla_host));
4176
4177 ha->pdev = pdev;
4178 ha->devnum = devnum; /* specifies microcode load address */
4179
4180#ifdef QLA_64BIT_PTR
4181 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) {
4182 if (dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32))) {
4183 printk(KERN_WARNING "scsi(%li): Unable to set a "
4184 "suitable DMA mask - aborting\n", ha->host_no);
4185 error = -ENODEV;
4186 goto error_put_host;
4187 }
4188 } else
4189 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
4190 ha->host_no);
4191#else
4192 if (dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32))) {
4193 printk(KERN_WARNING "scsi(%li): Unable to set a "
4194 "suitable DMA mask - aborting\n", ha->host_no);
4195 error = -ENODEV;
4196 goto error_put_host;
4197 }
4198#endif
4199
4200 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
4201 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
4202 &ha->request_dma, GFP_KERNEL);
4203 if (!ha->request_ring) {
4204 printk(KERN_INFO "qla1280: Failed to get request memory\n");
4205 goto error_put_host;
4206 }
4207
4208 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
4209 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
4210 &ha->response_dma, GFP_KERNEL);
4211 if (!ha->response_ring) {
4212 printk(KERN_INFO "qla1280: Failed to get response memory\n");
4213 goto error_free_request_ring;
4214 }
4215
4216 ha->ports = bdp->numPorts;
4217
4218 ha->host = host;
4219 ha->host_no = host->host_no;
4220
4221 host->irq = pdev->irq;
4222 host->max_channel = bdp->numPorts - 1;
4223 host->max_lun = MAX_LUNS - 1;
4224 host->max_id = MAX_TARGETS;
4225 host->max_sectors = 1024;
4226 host->unique_id = host->host_no;
4227
4228 error = -ENODEV;
4229
4230#if MEMORY_MAPPED_IO
4231 ha->mmpbase = pci_ioremap_bar(ha->pdev, 1);
4232 if (!ha->mmpbase) {
4233 printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
4234 goto error_free_response_ring;
4235 }
4236
4237 host->base = (unsigned long)ha->mmpbase;
4238 ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
4239#else
4240 host->io_port = pci_resource_start(ha->pdev, 0);
4241 if (!request_region(host->io_port, 0xff, "qla1280")) {
4242 printk(KERN_INFO "qla1280: Failed to reserve i/o region "
4243 "0x%04lx-0x%04lx - already in use\n",
4244 host->io_port, host->io_port + 0xff);
4245 goto error_free_response_ring;
4246 }
4247
4248 ha->iobase = (struct device_reg *)host->io_port;
4249#endif
4250
4251 INIT_LIST_HEAD(&ha->done_q);
4252
4253 /* Disable ISP interrupts. */
4254 qla1280_disable_intrs(ha);
4255
4256 if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED,
4257 "qla1280", ha)) {
4258 printk("qla1280 : Failed to reserve interrupt %d already "
4259 "in use\n", pdev->irq);
4260 goto error_release_region;
4261 }
4262
4263 /* load the F/W, read paramaters, and init the H/W */
4264 if (qla1280_initialize_adapter(ha)) {
4265 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
4266 goto error_free_irq;
4267 }
4268
4269 /* set our host ID (need to do something about our two IDs) */
4270 host->this_id = ha->bus_settings[0].id;
4271
4272 pci_set_drvdata(pdev, host);
4273
4274 error = scsi_add_host(host, &pdev->dev);
4275 if (error)
4276 goto error_disable_adapter;
4277 scsi_scan_host(host);
4278
4279 return 0;
4280
4281 error_disable_adapter:
4282 qla1280_disable_intrs(ha);
4283 error_free_irq:
4284 free_irq(pdev->irq, ha);
4285 error_release_region:
4286#if MEMORY_MAPPED_IO
4287 iounmap(ha->mmpbase);
4288#else
4289 release_region(host->io_port, 0xff);
4290#endif
4291 error_free_response_ring:
4292 dma_free_coherent(&ha->pdev->dev,
4293 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
4294 ha->response_ring, ha->response_dma);
4295 error_free_request_ring:
4296 dma_free_coherent(&ha->pdev->dev,
4297 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
4298 ha->request_ring, ha->request_dma);
4299 error_put_host:
4300 scsi_host_put(host);
4301 error_disable_device:
4302 pci_disable_device(pdev);
4303 error:
4304 return error;
4305}
4306
4307
4308static void
4309qla1280_remove_one(struct pci_dev *pdev)
4310{
4311 struct Scsi_Host *host = pci_get_drvdata(pdev);
4312 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
4313
4314 scsi_remove_host(host);
4315
4316 qla1280_disable_intrs(ha);
4317
4318 free_irq(pdev->irq, ha);
4319
4320#if MEMORY_MAPPED_IO
4321 iounmap(ha->mmpbase);
4322#else
4323 release_region(host->io_port, 0xff);
4324#endif
4325
4326 dma_free_coherent(&ha->pdev->dev,
4327 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4328 ha->request_ring, ha->request_dma);
4329 dma_free_coherent(&ha->pdev->dev,
4330 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4331 ha->response_ring, ha->response_dma);
4332
4333 pci_disable_device(pdev);
4334
4335 scsi_host_put(host);
4336}
4337
4338static struct pci_driver qla1280_pci_driver = {
4339 .name = "qla1280",
4340 .id_table = qla1280_pci_tbl,
4341 .probe = qla1280_probe_one,
4342 .remove = qla1280_remove_one,
4343};
4344
4345static int __init
4346qla1280_init(void)
4347{
4348#ifdef MODULE
4349 /*
4350 * If we are called as a module, the qla1280 pointer may not be null
4351 * and it would point to our bootup string, just like on the lilo
4352 * command line. IF not NULL, then process this config string with
4353 * qla1280_setup
4354 *
4355 * Boot time Options
4356 * To add options at boot time add a line to your lilo.conf file like:
4357 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
4358 * which will result in the first four devices on the first two
4359 * controllers being set to a tagged queue depth of 32.
4360 */
4361 if (qla1280)
4362 qla1280_setup(qla1280);
4363#endif
4364
4365 return pci_register_driver(&qla1280_pci_driver);
4366}
4367
4368static void __exit
4369qla1280_exit(void)
4370{
4371 int i;
4372
4373 pci_unregister_driver(&qla1280_pci_driver);
4374 /* release any allocated firmware images */
4375 for (i = 0; i < QL_NUM_FW_IMAGES; i++) {
4376 release_firmware(qla1280_fw_tbl[i].fw);
4377 qla1280_fw_tbl[i].fw = NULL;
4378 }
4379}
4380
4381module_init(qla1280_init);
4382module_exit(qla1280_exit);
4383
4384MODULE_AUTHOR("Qlogic & Jes Sorensen");
4385MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
4386MODULE_LICENSE("GPL");
4387MODULE_FIRMWARE("qlogic/1040.bin");
4388MODULE_FIRMWARE("qlogic/1280.bin");
4389MODULE_FIRMWARE("qlogic/12160.bin");
4390MODULE_VERSION(QLA1280_VERSION);