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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 ADAPTER_RESET,
720};
721
722
723static void qla1280_mailbox_timeout(struct timer_list *t)
724{
725 struct scsi_qla_host *ha = from_timer(ha, t, mailbox_timer);
726 struct device_reg __iomem *reg;
727 reg = ha->iobase;
728
729 ha->mailbox_out[0] = RD_REG_WORD(®->mailbox0);
730 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
731 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
732 RD_REG_WORD(®->ictrl), RD_REG_WORD(®->istatus));
733 complete(ha->mailbox_wait);
734}
735
736static int
737_qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp,
738 struct completion *wait)
739{
740 int status = FAILED;
741 struct scsi_cmnd *cmd = sp->cmd;
742
743 spin_unlock_irq(ha->host->host_lock);
744 wait_for_completion_timeout(wait, 4*HZ);
745 spin_lock_irq(ha->host->host_lock);
746 sp->wait = NULL;
747 if(CMD_HANDLE(cmd) == COMPLETED_HANDLE) {
748 status = SUCCESS;
749 scsi_done(cmd);
750 }
751 return status;
752}
753
754static int
755qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp)
756{
757 DECLARE_COMPLETION_ONSTACK(wait);
758
759 sp->wait = &wait;
760 return _qla1280_wait_for_single_command(ha, sp, &wait);
761}
762
763static int
764qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target)
765{
766 int cnt;
767 int status;
768 struct srb *sp;
769 struct scsi_cmnd *cmd;
770
771 status = SUCCESS;
772
773 /*
774 * Wait for all commands with the designated bus/target
775 * to be completed by the firmware
776 */
777 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
778 sp = ha->outstanding_cmds[cnt];
779 if (sp) {
780 cmd = sp->cmd;
781
782 if (bus >= 0 && SCSI_BUS_32(cmd) != bus)
783 continue;
784 if (target >= 0 && SCSI_TCN_32(cmd) != target)
785 continue;
786
787 status = qla1280_wait_for_single_command(ha, sp);
788 if (status == FAILED)
789 break;
790 }
791 }
792 return status;
793}
794
795/**************************************************************************
796 * qla1280_error_action
797 * The function will attempt to perform a specified error action and
798 * wait for the results (or time out).
799 *
800 * Input:
801 * cmd = Linux SCSI command packet of the command that cause the
802 * bus reset.
803 * action = error action to take (see action_t)
804 *
805 * Returns:
806 * SUCCESS or FAILED
807 *
808 **************************************************************************/
809static int
810qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
811{
812 struct scsi_qla_host *ha;
813 int bus, target, lun;
814 struct srb *sp;
815 int i, found;
816 int result=FAILED;
817 int wait_for_bus=-1;
818 int wait_for_target = -1;
819 DECLARE_COMPLETION_ONSTACK(wait);
820
821 ENTER("qla1280_error_action");
822
823 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
824 sp = scsi_cmd_priv(cmd);
825 bus = SCSI_BUS_32(cmd);
826 target = SCSI_TCN_32(cmd);
827 lun = SCSI_LUN_32(cmd);
828
829 dprintk(4, "error_action %i, istatus 0x%04x\n", action,
830 RD_REG_WORD(&ha->iobase->istatus));
831
832 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
833 RD_REG_WORD(&ha->iobase->host_cmd),
834 RD_REG_WORD(&ha->iobase->ictrl), jiffies);
835
836 if (qla1280_verbose)
837 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
838 "Handle=0x%p, action=0x%x\n",
839 ha->host_no, cmd, CMD_HANDLE(cmd), action);
840
841 /*
842 * Check to see if we have the command in the outstanding_cmds[]
843 * array. If not then it must have completed before this error
844 * action was initiated. If the error_action isn't ABORT_COMMAND
845 * then the driver must proceed with the requested action.
846 */
847 found = -1;
848 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
849 if (sp == ha->outstanding_cmds[i]) {
850 found = i;
851 sp->wait = &wait; /* we'll wait for it to complete */
852 break;
853 }
854 }
855
856 if (found < 0) { /* driver doesn't have command */
857 result = SUCCESS;
858 if (qla1280_verbose) {
859 printk(KERN_INFO
860 "scsi(%ld:%d:%d:%d): specified command has "
861 "already completed.\n", ha->host_no, bus,
862 target, lun);
863 }
864 }
865
866 switch (action) {
867
868 case ABORT_COMMAND:
869 dprintk(1, "qla1280: RISC aborting command\n");
870 /*
871 * The abort might fail due to race when the host_lock
872 * is released to issue the abort. As such, we
873 * don't bother to check the return status.
874 */
875 if (found >= 0)
876 qla1280_abort_command(ha, sp, found);
877 break;
878
879 case DEVICE_RESET:
880 if (qla1280_verbose)
881 printk(KERN_INFO
882 "scsi(%ld:%d:%d:%d): Queueing device reset "
883 "command.\n", ha->host_no, bus, target, lun);
884 if (qla1280_device_reset(ha, bus, target) == 0) {
885 /* issued device reset, set wait conditions */
886 wait_for_bus = bus;
887 wait_for_target = target;
888 }
889 break;
890
891 case BUS_RESET:
892 if (qla1280_verbose)
893 printk(KERN_INFO "qla1280(%ld:%d): Issued bus "
894 "reset.\n", ha->host_no, bus);
895 if (qla1280_bus_reset(ha, bus) == 0) {
896 /* issued bus reset, set wait conditions */
897 wait_for_bus = bus;
898 }
899 break;
900
901 case ADAPTER_RESET:
902 default:
903 if (qla1280_verbose) {
904 printk(KERN_INFO
905 "scsi(%ld): Issued ADAPTER RESET\n",
906 ha->host_no);
907 printk(KERN_INFO "scsi(%ld): I/O processing will "
908 "continue automatically\n", ha->host_no);
909 }
910 ha->flags.reset_active = 1;
911
912 if (qla1280_abort_isp(ha) != 0) { /* it's dead */
913 result = FAILED;
914 }
915
916 ha->flags.reset_active = 0;
917 }
918
919 /*
920 * At this point, the host_lock has been released and retaken
921 * by the issuance of the mailbox command.
922 * Wait for the command passed in by the mid-layer if it
923 * was found by the driver. It might have been returned
924 * between eh recovery steps, hence the check of the "found"
925 * variable.
926 */
927
928 if (found >= 0)
929 result = _qla1280_wait_for_single_command(ha, sp, &wait);
930
931 if (action == ABORT_COMMAND && result != SUCCESS) {
932 printk(KERN_WARNING
933 "scsi(%li:%i:%i:%i): "
934 "Unable to abort command!\n",
935 ha->host_no, bus, target, lun);
936 }
937
938 /*
939 * If the command passed in by the mid-layer has been
940 * returned by the board, then wait for any additional
941 * commands which are supposed to complete based upon
942 * the error action.
943 *
944 * All commands are unconditionally returned during a
945 * call to qla1280_abort_isp(), ADAPTER_RESET. No need
946 * to wait for them.
947 */
948 if (result == SUCCESS && wait_for_bus >= 0) {
949 result = qla1280_wait_for_pending_commands(ha,
950 wait_for_bus, wait_for_target);
951 }
952
953 dprintk(1, "RESET returning %d\n", result);
954
955 LEAVE("qla1280_error_action");
956 return result;
957}
958
959/**************************************************************************
960 * qla1280_abort
961 * Abort the specified SCSI command(s).
962 **************************************************************************/
963static int
964qla1280_eh_abort(struct scsi_cmnd * cmd)
965{
966 int rc;
967
968 spin_lock_irq(cmd->device->host->host_lock);
969 rc = qla1280_error_action(cmd, ABORT_COMMAND);
970 spin_unlock_irq(cmd->device->host->host_lock);
971
972 return rc;
973}
974
975/**************************************************************************
976 * qla1280_device_reset
977 * Reset the specified SCSI device
978 **************************************************************************/
979static int
980qla1280_eh_device_reset(struct scsi_cmnd *cmd)
981{
982 int rc;
983
984 spin_lock_irq(cmd->device->host->host_lock);
985 rc = qla1280_error_action(cmd, DEVICE_RESET);
986 spin_unlock_irq(cmd->device->host->host_lock);
987
988 return rc;
989}
990
991/**************************************************************************
992 * qla1280_bus_reset
993 * Reset the specified bus.
994 **************************************************************************/
995static int
996qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
997{
998 int rc;
999
1000 spin_lock_irq(cmd->device->host->host_lock);
1001 rc = qla1280_error_action(cmd, BUS_RESET);
1002 spin_unlock_irq(cmd->device->host->host_lock);
1003
1004 return rc;
1005}
1006
1007/**************************************************************************
1008 * qla1280_adapter_reset
1009 * Reset the specified adapter (both channels)
1010 **************************************************************************/
1011static int
1012qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
1013{
1014 int rc;
1015
1016 spin_lock_irq(cmd->device->host->host_lock);
1017 rc = qla1280_error_action(cmd, ADAPTER_RESET);
1018 spin_unlock_irq(cmd->device->host->host_lock);
1019
1020 return rc;
1021}
1022
1023static int
1024qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1025 sector_t capacity, int geom[])
1026{
1027 int heads, sectors, cylinders;
1028
1029 heads = 64;
1030 sectors = 32;
1031 cylinders = (unsigned long)capacity / (heads * sectors);
1032 if (cylinders > 1024) {
1033 heads = 255;
1034 sectors = 63;
1035 cylinders = (unsigned long)capacity / (heads * sectors);
1036 /* if (cylinders > 1023)
1037 cylinders = 1023; */
1038 }
1039
1040 geom[0] = heads;
1041 geom[1] = sectors;
1042 geom[2] = cylinders;
1043
1044 return 0;
1045}
1046
1047
1048/* disable risc and host interrupts */
1049static inline void
1050qla1280_disable_intrs(struct scsi_qla_host *ha)
1051{
1052 WRT_REG_WORD(&ha->iobase->ictrl, 0);
1053 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1054}
1055
1056/* enable risc and host interrupts */
1057static inline void
1058qla1280_enable_intrs(struct scsi_qla_host *ha)
1059{
1060 WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC));
1061 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1062}
1063
1064/**************************************************************************
1065 * qla1280_intr_handler
1066 * Handles the H/W interrupt
1067 **************************************************************************/
1068static irqreturn_t
1069qla1280_intr_handler(int irq, void *dev_id)
1070{
1071 struct scsi_qla_host *ha;
1072 struct device_reg __iomem *reg;
1073 u16 data;
1074 int handled = 0;
1075
1076 ENTER_INTR ("qla1280_intr_handler");
1077 ha = (struct scsi_qla_host *)dev_id;
1078
1079 spin_lock(ha->host->host_lock);
1080
1081 ha->isr_count++;
1082 reg = ha->iobase;
1083
1084 qla1280_disable_intrs(ha);
1085
1086 data = qla1280_debounce_register(®->istatus);
1087 /* Check for pending interrupts. */
1088 if (data & RISC_INT) {
1089 qla1280_isr(ha, &ha->done_q);
1090 handled = 1;
1091 }
1092 if (!list_empty(&ha->done_q))
1093 qla1280_done(ha);
1094
1095 spin_unlock(ha->host->host_lock);
1096
1097 qla1280_enable_intrs(ha);
1098
1099 LEAVE_INTR("qla1280_intr_handler");
1100 return IRQ_RETVAL(handled);
1101}
1102
1103
1104static int
1105qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
1106{
1107 uint8_t mr;
1108 uint16_t mb[MAILBOX_REGISTER_COUNT];
1109 struct nvram *nv;
1110 int status, lun;
1111
1112 nv = &ha->nvram;
1113
1114 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
1115
1116 /* Set Target Parameters. */
1117 mb[0] = MBC_SET_TARGET_PARAMETERS;
1118 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1119 mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8;
1120 mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9;
1121 mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10;
1122 mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11;
1123 mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12;
1124 mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13;
1125 mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14;
1126 mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15;
1127
1128 if (IS_ISP1x160(ha)) {
1129 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
1130 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8);
1131 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
1132 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
1133 mr |= BIT_6;
1134 } else {
1135 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8);
1136 }
1137 mb[3] |= nv->bus[bus].target[target].sync_period;
1138
1139 status = qla1280_mailbox_command(ha, mr, mb);
1140
1141 /* Set Device Queue Parameters. */
1142 for (lun = 0; lun < MAX_LUNS; lun++) {
1143 mb[0] = MBC_SET_DEVICE_QUEUE;
1144 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1145 mb[1] |= lun;
1146 mb[2] = nv->bus[bus].max_queue_depth;
1147 mb[3] = nv->bus[bus].target[target].execution_throttle;
1148 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1149 }
1150
1151 if (status)
1152 printk(KERN_WARNING "scsi(%ld:%i:%i): "
1153 "qla1280_set_target_parameters() failed\n",
1154 ha->host_no, bus, target);
1155 return status;
1156}
1157
1158
1159/**************************************************************************
1160 * qla1280_slave_configure
1161 *
1162 * Description:
1163 * Determines the queue depth for a given device. There are two ways
1164 * a queue depth can be obtained for a tagged queueing device. One
1165 * way is the default queue depth which is determined by whether
1166 * If it is defined, then it is used
1167 * as the default queue depth. Otherwise, we use either 4 or 8 as the
1168 * default queue depth (dependent on the number of hardware SCBs).
1169 **************************************************************************/
1170static int
1171qla1280_slave_configure(struct scsi_device *device)
1172{
1173 struct scsi_qla_host *ha;
1174 int default_depth = 3;
1175 int bus = device->channel;
1176 int target = device->id;
1177 int status = 0;
1178 struct nvram *nv;
1179 unsigned long flags;
1180
1181 ha = (struct scsi_qla_host *)device->host->hostdata;
1182 nv = &ha->nvram;
1183
1184 if (qla1280_check_for_dead_scsi_bus(ha, bus))
1185 return 1;
1186
1187 if (device->tagged_supported &&
1188 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
1189 scsi_change_queue_depth(device, ha->bus_settings[bus].hiwat);
1190 } else {
1191 scsi_change_queue_depth(device, default_depth);
1192 }
1193
1194 nv->bus[bus].target[target].parameter.enable_sync = device->sdtr;
1195 nv->bus[bus].target[target].parameter.enable_wide = device->wdtr;
1196 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
1197
1198 if (driver_setup.no_sync ||
1199 (driver_setup.sync_mask &&
1200 (~driver_setup.sync_mask & (1 << target))))
1201 nv->bus[bus].target[target].parameter.enable_sync = 0;
1202 if (driver_setup.no_wide ||
1203 (driver_setup.wide_mask &&
1204 (~driver_setup.wide_mask & (1 << target))))
1205 nv->bus[bus].target[target].parameter.enable_wide = 0;
1206 if (IS_ISP1x160(ha)) {
1207 if (driver_setup.no_ppr ||
1208 (driver_setup.ppr_mask &&
1209 (~driver_setup.ppr_mask & (1 << target))))
1210 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
1211 }
1212
1213 spin_lock_irqsave(ha->host->host_lock, flags);
1214 if (nv->bus[bus].target[target].parameter.enable_sync)
1215 status = qla1280_set_target_parameters(ha, bus, target);
1216 qla1280_get_target_parameters(ha, device);
1217 spin_unlock_irqrestore(ha->host->host_lock, flags);
1218 return status;
1219}
1220
1221
1222/*
1223 * qla1280_done
1224 * Process completed commands.
1225 *
1226 * Input:
1227 * ha = adapter block pointer.
1228 */
1229static void
1230qla1280_done(struct scsi_qla_host *ha)
1231{
1232 struct srb *sp;
1233 struct list_head *done_q;
1234 int bus, target;
1235 struct scsi_cmnd *cmd;
1236
1237 ENTER("qla1280_done");
1238
1239 done_q = &ha->done_q;
1240
1241 while (!list_empty(done_q)) {
1242 sp = list_entry(done_q->next, struct srb, list);
1243
1244 list_del(&sp->list);
1245
1246 cmd = sp->cmd;
1247 bus = SCSI_BUS_32(cmd);
1248 target = SCSI_TCN_32(cmd);
1249
1250 switch ((CMD_RESULT(cmd) >> 16)) {
1251 case DID_RESET:
1252 /* Issue marker command. */
1253 if (!ha->flags.abort_isp_active)
1254 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
1255 break;
1256 case DID_ABORT:
1257 sp->flags &= ~SRB_ABORT_PENDING;
1258 sp->flags |= SRB_ABORTED;
1259 break;
1260 default:
1261 break;
1262 }
1263
1264 /* Release memory used for this I/O */
1265 scsi_dma_unmap(cmd);
1266
1267 /* Call the mid-level driver interrupt handler */
1268 ha->actthreads--;
1269
1270 if (sp->wait == NULL)
1271 scsi_done(cmd);
1272 else
1273 complete(sp->wait);
1274 }
1275 LEAVE("qla1280_done");
1276}
1277
1278/*
1279 * Translates a ISP error to a Linux SCSI error
1280 */
1281static int
1282qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
1283{
1284 int host_status = DID_ERROR;
1285 uint16_t comp_status = le16_to_cpu(sts->comp_status);
1286 uint16_t state_flags = le16_to_cpu(sts->state_flags);
1287 uint32_t residual_length = le32_to_cpu(sts->residual_length);
1288 uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
1289#if DEBUG_QLA1280_INTR
1290 static char *reason[] = {
1291 "DID_OK",
1292 "DID_NO_CONNECT",
1293 "DID_BUS_BUSY",
1294 "DID_TIME_OUT",
1295 "DID_BAD_TARGET",
1296 "DID_ABORT",
1297 "DID_PARITY",
1298 "DID_ERROR",
1299 "DID_RESET",
1300 "DID_BAD_INTR"
1301 };
1302#endif /* DEBUG_QLA1280_INTR */
1303
1304 ENTER("qla1280_return_status");
1305
1306#if DEBUG_QLA1280_INTR
1307 /*
1308 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
1309 comp_status);
1310 */
1311#endif
1312
1313 switch (comp_status) {
1314 case CS_COMPLETE:
1315 host_status = DID_OK;
1316 break;
1317
1318 case CS_INCOMPLETE:
1319 if (!(state_flags & SF_GOT_BUS))
1320 host_status = DID_NO_CONNECT;
1321 else if (!(state_flags & SF_GOT_TARGET))
1322 host_status = DID_BAD_TARGET;
1323 else if (!(state_flags & SF_SENT_CDB))
1324 host_status = DID_ERROR;
1325 else if (!(state_flags & SF_TRANSFERRED_DATA))
1326 host_status = DID_ERROR;
1327 else if (!(state_flags & SF_GOT_STATUS))
1328 host_status = DID_ERROR;
1329 else if (!(state_flags & SF_GOT_SENSE))
1330 host_status = DID_ERROR;
1331 break;
1332
1333 case CS_RESET:
1334 host_status = DID_RESET;
1335 break;
1336
1337 case CS_ABORTED:
1338 host_status = DID_ABORT;
1339 break;
1340
1341 case CS_TIMEOUT:
1342 host_status = DID_TIME_OUT;
1343 break;
1344
1345 case CS_DATA_OVERRUN:
1346 dprintk(2, "Data overrun 0x%x\n", residual_length);
1347 dprintk(2, "qla1280_return_status: response packet data\n");
1348 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
1349 host_status = DID_ERROR;
1350 break;
1351
1352 case CS_DATA_UNDERRUN:
1353 if ((scsi_bufflen(cp) - residual_length) <
1354 cp->underflow) {
1355 printk(KERN_WARNING
1356 "scsi: Underflow detected - retrying "
1357 "command.\n");
1358 host_status = DID_ERROR;
1359 } else {
1360 scsi_set_resid(cp, residual_length);
1361 host_status = DID_OK;
1362 }
1363 break;
1364
1365 default:
1366 host_status = DID_ERROR;
1367 break;
1368 }
1369
1370#if DEBUG_QLA1280_INTR
1371 dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
1372 reason[host_status], scsi_status);
1373#endif
1374
1375 LEAVE("qla1280_return_status");
1376
1377 return (scsi_status & 0xff) | (host_status << 16);
1378}
1379
1380/****************************************************************************/
1381/* QLogic ISP1280 Hardware Support Functions. */
1382/****************************************************************************/
1383
1384/*
1385 * qla1280_initialize_adapter
1386 * Initialize board.
1387 *
1388 * Input:
1389 * ha = adapter block pointer.
1390 *
1391 * Returns:
1392 * 0 = success
1393 */
1394static int
1395qla1280_initialize_adapter(struct scsi_qla_host *ha)
1396{
1397 struct device_reg __iomem *reg;
1398 int status;
1399 int bus;
1400 unsigned long flags;
1401
1402 ENTER("qla1280_initialize_adapter");
1403
1404 /* Clear adapter flags. */
1405 ha->flags.online = 0;
1406 ha->flags.disable_host_adapter = 0;
1407 ha->flags.reset_active = 0;
1408 ha->flags.abort_isp_active = 0;
1409
1410 /* TODO: implement support for the 1040 nvram format */
1411 if (IS_ISP1040(ha))
1412 driver_setup.no_nvram = 1;
1413
1414 dprintk(1, "Configure PCI space for adapter...\n");
1415
1416 reg = ha->iobase;
1417
1418 /* Insure mailbox registers are free. */
1419 WRT_REG_WORD(®->semaphore, 0);
1420 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
1421 WRT_REG_WORD(®->host_cmd, HC_CLR_HOST_INT);
1422 RD_REG_WORD(®->host_cmd);
1423
1424 if (qla1280_read_nvram(ha)) {
1425 dprintk(2, "qla1280_initialize_adapter: failed to read "
1426 "NVRAM\n");
1427 }
1428
1429 /*
1430 * It's necessary to grab the spin here as qla1280_mailbox_command
1431 * needs to be able to drop the lock unconditionally to wait
1432 * for completion.
1433 */
1434 spin_lock_irqsave(ha->host->host_lock, flags);
1435
1436 status = qla1280_load_firmware(ha);
1437 if (status) {
1438 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
1439 ha->host_no);
1440 goto out;
1441 }
1442
1443 /* Setup adapter based on NVRAM parameters. */
1444 dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
1445 qla1280_nvram_config(ha);
1446
1447 if (ha->flags.disable_host_adapter) {
1448 status = 1;
1449 goto out;
1450 }
1451
1452 status = qla1280_init_rings(ha);
1453 if (status)
1454 goto out;
1455
1456 /* Issue SCSI reset, if we can't reset twice then bus is dead */
1457 for (bus = 0; bus < ha->ports; bus++) {
1458 if (!ha->bus_settings[bus].disable_scsi_reset &&
1459 qla1280_bus_reset(ha, bus) &&
1460 qla1280_bus_reset(ha, bus))
1461 ha->bus_settings[bus].scsi_bus_dead = 1;
1462 }
1463
1464 ha->flags.online = 1;
1465 out:
1466 spin_unlock_irqrestore(ha->host->host_lock, flags);
1467
1468 if (status)
1469 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
1470
1471 LEAVE("qla1280_initialize_adapter");
1472 return status;
1473}
1474
1475/*
1476 * qla1280_request_firmware
1477 * Acquire firmware for chip. Retain in memory
1478 * for error recovery.
1479 *
1480 * Input:
1481 * ha = adapter block pointer.
1482 *
1483 * Returns:
1484 * Pointer to firmware image or an error code
1485 * cast to pointer via ERR_PTR().
1486 */
1487static const struct firmware *
1488qla1280_request_firmware(struct scsi_qla_host *ha)
1489{
1490 const struct firmware *fw;
1491 int err;
1492 int index;
1493 char *fwname;
1494
1495 spin_unlock_irq(ha->host->host_lock);
1496 mutex_lock(&qla1280_firmware_mutex);
1497
1498 index = ql1280_board_tbl[ha->devnum].fw_index;
1499 fw = qla1280_fw_tbl[index].fw;
1500 if (fw)
1501 goto out;
1502
1503 fwname = qla1280_fw_tbl[index].fwname;
1504 err = request_firmware(&fw, fwname, &ha->pdev->dev);
1505
1506 if (err) {
1507 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
1508 fwname, err);
1509 fw = ERR_PTR(err);
1510 goto unlock;
1511 }
1512 if ((fw->size % 2) || (fw->size < 6)) {
1513 printk(KERN_ERR "Invalid firmware length %zu in image \"%s\"\n",
1514 fw->size, fwname);
1515 release_firmware(fw);
1516 fw = ERR_PTR(-EINVAL);
1517 goto unlock;
1518 }
1519
1520 qla1280_fw_tbl[index].fw = fw;
1521
1522 out:
1523 ha->fwver1 = fw->data[0];
1524 ha->fwver2 = fw->data[1];
1525 ha->fwver3 = fw->data[2];
1526 unlock:
1527 mutex_unlock(&qla1280_firmware_mutex);
1528 spin_lock_irq(ha->host->host_lock);
1529 return fw;
1530}
1531
1532/*
1533 * Chip diagnostics
1534 * Test chip for proper operation.
1535 *
1536 * Input:
1537 * ha = adapter block pointer.
1538 *
1539 * Returns:
1540 * 0 = success.
1541 */
1542static int
1543qla1280_chip_diag(struct scsi_qla_host *ha)
1544{
1545 uint16_t mb[MAILBOX_REGISTER_COUNT];
1546 struct device_reg __iomem *reg = ha->iobase;
1547 int status = 0;
1548 int cnt;
1549 uint16_t data;
1550 dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", ®->id_l);
1551
1552 dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
1553
1554 /* Soft reset chip and wait for it to finish. */
1555 WRT_REG_WORD(®->ictrl, ISP_RESET);
1556
1557 /*
1558 * We can't do a traditional PCI write flush here by reading
1559 * back the register. The card will not respond once the reset
1560 * is in action and we end up with a machine check exception
1561 * instead. Nothing to do but wait and hope for the best.
1562 * A portable pci_write_flush(pdev) call would be very useful here.
1563 */
1564 udelay(20);
1565 data = qla1280_debounce_register(®->ictrl);
1566 /*
1567 * Yet another QLogic gem ;-(
1568 */
1569 for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
1570 udelay(5);
1571 data = RD_REG_WORD(®->ictrl);
1572 }
1573
1574 if (!cnt)
1575 goto fail;
1576
1577 /* Reset register cleared by chip reset. */
1578 dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
1579
1580 WRT_REG_WORD(®->cfg_1, 0);
1581
1582 /* Reset RISC and disable BIOS which
1583 allows RISC to execute out of RAM. */
1584 WRT_REG_WORD(®->host_cmd, HC_RESET_RISC |
1585 HC_RELEASE_RISC | HC_DISABLE_BIOS);
1586
1587 RD_REG_WORD(®->id_l); /* Flush PCI write */
1588 data = qla1280_debounce_register(®->mailbox0);
1589
1590 /*
1591 * I *LOVE* this code!
1592 */
1593 for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
1594 udelay(5);
1595 data = RD_REG_WORD(®->mailbox0);
1596 }
1597
1598 if (!cnt)
1599 goto fail;
1600
1601 /* Check product ID of chip */
1602 dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
1603
1604 if (RD_REG_WORD(®->mailbox1) != PROD_ID_1 ||
1605 (RD_REG_WORD(®->mailbox2) != PROD_ID_2 &&
1606 RD_REG_WORD(®->mailbox2) != PROD_ID_2a) ||
1607 RD_REG_WORD(®->mailbox3) != PROD_ID_3 ||
1608 RD_REG_WORD(®->mailbox4) != PROD_ID_4) {
1609 printk(KERN_INFO "qla1280: Wrong product ID = "
1610 "0x%x,0x%x,0x%x,0x%x\n",
1611 RD_REG_WORD(®->mailbox1),
1612 RD_REG_WORD(®->mailbox2),
1613 RD_REG_WORD(®->mailbox3),
1614 RD_REG_WORD(®->mailbox4));
1615 goto fail;
1616 }
1617
1618 /*
1619 * Enable ints early!!!
1620 */
1621 qla1280_enable_intrs(ha);
1622
1623 dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
1624 /* Wrap Incoming Mailboxes Test. */
1625 mb[0] = MBC_MAILBOX_REGISTER_TEST;
1626 mb[1] = 0xAAAA;
1627 mb[2] = 0x5555;
1628 mb[3] = 0xAA55;
1629 mb[4] = 0x55AA;
1630 mb[5] = 0xA5A5;
1631 mb[6] = 0x5A5A;
1632 mb[7] = 0x2525;
1633
1634 status = qla1280_mailbox_command(ha, 0xff, mb);
1635 if (status)
1636 goto fail;
1637
1638 if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
1639 mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
1640 mb[7] != 0x2525) {
1641 printk(KERN_INFO "qla1280: Failed mbox check\n");
1642 goto fail;
1643 }
1644
1645 dprintk(3, "qla1280_chip_diag: exiting normally\n");
1646 return 0;
1647 fail:
1648 dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
1649 return status;
1650}
1651
1652static int
1653qla1280_load_firmware_pio(struct scsi_qla_host *ha)
1654{
1655 /* enter with host_lock acquired */
1656
1657 const struct firmware *fw;
1658 const __le16 *fw_data;
1659 uint16_t risc_address, risc_code_size;
1660 uint16_t mb[MAILBOX_REGISTER_COUNT], i;
1661 int err = 0;
1662
1663 fw = qla1280_request_firmware(ha);
1664 if (IS_ERR(fw))
1665 return PTR_ERR(fw);
1666
1667 fw_data = (const __le16 *)&fw->data[0];
1668 ha->fwstart = __le16_to_cpu(fw_data[2]);
1669
1670 /* Load RISC code. */
1671 risc_address = ha->fwstart;
1672 fw_data = (const __le16 *)&fw->data[6];
1673 risc_code_size = (fw->size - 6) / 2;
1674
1675 for (i = 0; i < risc_code_size; i++) {
1676 mb[0] = MBC_WRITE_RAM_WORD;
1677 mb[1] = risc_address + i;
1678 mb[2] = __le16_to_cpu(fw_data[i]);
1679
1680 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
1681 if (err) {
1682 printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
1683 ha->host_no);
1684 break;
1685 }
1686 }
1687
1688 return err;
1689}
1690
1691#ifdef QLA_64BIT_PTR
1692#define LOAD_CMD MBC_LOAD_RAM_A64_ROM
1693#define DUMP_CMD MBC_DUMP_RAM_A64_ROM
1694#define CMD_ARGS (BIT_7 | BIT_6 | BIT_4 | BIT_3 | BIT_2 | BIT_1 | BIT_0)
1695#else
1696#define LOAD_CMD MBC_LOAD_RAM
1697#define DUMP_CMD MBC_DUMP_RAM
1698#define CMD_ARGS (BIT_4 | BIT_3 | BIT_2 | BIT_1 | BIT_0)
1699#endif
1700
1701#define DUMP_IT_BACK 0 /* for debug of RISC loading */
1702static int
1703qla1280_load_firmware_dma(struct scsi_qla_host *ha)
1704{
1705 /* enter with host_lock acquired */
1706 const struct firmware *fw;
1707 const __le16 *fw_data;
1708 uint16_t risc_address, risc_code_size;
1709 uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
1710 int err = 0, num, i;
1711#if DUMP_IT_BACK
1712 uint8_t *sp, *tbuf;
1713 dma_addr_t p_tbuf;
1714
1715 tbuf = dma_alloc_coherent(&ha->pdev->dev, 8000, &p_tbuf, GFP_KERNEL);
1716 if (!tbuf)
1717 return -ENOMEM;
1718#endif
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 dprintk(1, "%s: DMA RISC code (%i) words\n",
1733 __func__, risc_code_size);
1734
1735 num = 0;
1736 while (risc_code_size > 0) {
1737 int warn __attribute__((unused)) = 0;
1738
1739 cnt = 2000 >> 1;
1740
1741 if (cnt > risc_code_size)
1742 cnt = risc_code_size;
1743
1744 dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p),"
1745 "%d,%d(0x%x)\n",
1746 fw_data, cnt, num, risc_address);
1747 for(i = 0; i < cnt; i++)
1748 ((__le16 *)ha->request_ring)[i] = fw_data[i];
1749
1750 mb[0] = LOAD_CMD;
1751 mb[1] = risc_address;
1752 mb[4] = cnt;
1753 mb[3] = ha->request_dma & 0xffff;
1754 mb[2] = (ha->request_dma >> 16) & 0xffff;
1755 mb[7] = upper_32_bits(ha->request_dma) & 0xffff;
1756 mb[6] = upper_32_bits(ha->request_dma) >> 16;
1757 dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
1758 __func__, mb[0],
1759 (void *)(long)ha->request_dma,
1760 mb[6], mb[7], mb[2], mb[3]);
1761 err = qla1280_mailbox_command(ha, CMD_ARGS, mb);
1762 if (err) {
1763 printk(KERN_ERR "scsi(%li): Failed to load partial "
1764 "segment of f\n", ha->host_no);
1765 goto out;
1766 }
1767
1768#if DUMP_IT_BACK
1769 mb[0] = DUMP_CMD;
1770 mb[1] = risc_address;
1771 mb[4] = cnt;
1772 mb[3] = p_tbuf & 0xffff;
1773 mb[2] = (p_tbuf >> 16) & 0xffff;
1774 mb[7] = upper_32_bits(p_tbuf) & 0xffff;
1775 mb[6] = upper_32_bits(p_tbuf) >> 16;
1776
1777 err = qla1280_mailbox_command(ha, CMD_ARGS, mb);
1778 if (err) {
1779 printk(KERN_ERR
1780 "Failed to dump partial segment of f/w\n");
1781 goto out;
1782 }
1783 sp = (uint8_t *)ha->request_ring;
1784 for (i = 0; i < (cnt << 1); i++) {
1785 if (tbuf[i] != sp[i] && warn++ < 10) {
1786 printk(KERN_ERR "%s: FW compare error @ "
1787 "byte(0x%x) loop#=%x\n",
1788 __func__, i, num);
1789 printk(KERN_ERR "%s: FWbyte=%x "
1790 "FWfromChip=%x\n",
1791 __func__, sp[i], tbuf[i]);
1792 /*break; */
1793 }
1794 }
1795#endif
1796 risc_address += cnt;
1797 risc_code_size = risc_code_size - cnt;
1798 fw_data = fw_data + cnt;
1799 num++;
1800 }
1801
1802 out:
1803#if DUMP_IT_BACK
1804 dma_free_coherent(&ha->pdev->dev, 8000, tbuf, p_tbuf);
1805#endif
1806 return err;
1807}
1808
1809static int
1810qla1280_start_firmware(struct scsi_qla_host *ha)
1811{
1812 uint16_t mb[MAILBOX_REGISTER_COUNT];
1813 int err;
1814
1815 dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
1816 __func__);
1817
1818 /* Verify checksum of loaded RISC code. */
1819 mb[0] = MBC_VERIFY_CHECKSUM;
1820 /* mb[1] = ql12_risc_code_addr01; */
1821 mb[1] = ha->fwstart;
1822 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1823 if (err) {
1824 printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no);
1825 return err;
1826 }
1827
1828 /* Start firmware execution. */
1829 dprintk(1, "%s: start firmware running.\n", __func__);
1830 mb[0] = MBC_EXECUTE_FIRMWARE;
1831 mb[1] = ha->fwstart;
1832 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
1833 if (err) {
1834 printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
1835 ha->host_no);
1836 }
1837
1838 return err;
1839}
1840
1841static int
1842qla1280_load_firmware(struct scsi_qla_host *ha)
1843{
1844 /* enter with host_lock taken */
1845 int err;
1846
1847 err = qla1280_chip_diag(ha);
1848 if (err)
1849 goto out;
1850 if (IS_ISP1040(ha))
1851 err = qla1280_load_firmware_pio(ha);
1852 else
1853 err = qla1280_load_firmware_dma(ha);
1854 if (err)
1855 goto out;
1856 err = qla1280_start_firmware(ha);
1857 out:
1858 return err;
1859}
1860
1861/*
1862 * Initialize rings
1863 *
1864 * Input:
1865 * ha = adapter block pointer.
1866 * ha->request_ring = request ring virtual address
1867 * ha->response_ring = response ring virtual address
1868 * ha->request_dma = request ring physical address
1869 * ha->response_dma = response ring physical address
1870 *
1871 * Returns:
1872 * 0 = success.
1873 */
1874static int
1875qla1280_init_rings(struct scsi_qla_host *ha)
1876{
1877 uint16_t mb[MAILBOX_REGISTER_COUNT];
1878 int status = 0;
1879
1880 ENTER("qla1280_init_rings");
1881
1882 /* Clear outstanding commands array. */
1883 memset(ha->outstanding_cmds, 0,
1884 sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
1885
1886 /* Initialize request queue. */
1887 ha->request_ring_ptr = ha->request_ring;
1888 ha->req_ring_index = 0;
1889 ha->req_q_cnt = REQUEST_ENTRY_CNT;
1890 /* mb[0] = MBC_INIT_REQUEST_QUEUE; */
1891 mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
1892 mb[1] = REQUEST_ENTRY_CNT;
1893 mb[3] = ha->request_dma & 0xffff;
1894 mb[2] = (ha->request_dma >> 16) & 0xffff;
1895 mb[4] = 0;
1896 mb[7] = upper_32_bits(ha->request_dma) & 0xffff;
1897 mb[6] = upper_32_bits(ha->request_dma) >> 16;
1898 if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
1899 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1900 &mb[0]))) {
1901 /* Initialize response queue. */
1902 ha->response_ring_ptr = ha->response_ring;
1903 ha->rsp_ring_index = 0;
1904 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
1905 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
1906 mb[1] = RESPONSE_ENTRY_CNT;
1907 mb[3] = ha->response_dma & 0xffff;
1908 mb[2] = (ha->response_dma >> 16) & 0xffff;
1909 mb[5] = 0;
1910 mb[7] = upper_32_bits(ha->response_dma) & 0xffff;
1911 mb[6] = upper_32_bits(ha->response_dma) >> 16;
1912 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
1913 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1914 &mb[0]);
1915 }
1916
1917 if (status)
1918 dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
1919
1920 LEAVE("qla1280_init_rings");
1921 return status;
1922}
1923
1924static void
1925qla1280_print_settings(struct nvram *nv)
1926{
1927 dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
1928 nv->bus[0].config_1.initiator_id);
1929 dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
1930 nv->bus[1].config_1.initiator_id);
1931
1932 dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
1933 nv->bus[0].bus_reset_delay);
1934 dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
1935 nv->bus[1].bus_reset_delay);
1936
1937 dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
1938 dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
1939 dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
1940 dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
1941
1942 dprintk(1, "qla1280 : async data setup time[0]=%d\n",
1943 nv->bus[0].config_2.async_data_setup_time);
1944 dprintk(1, "qla1280 : async data setup time[1]=%d\n",
1945 nv->bus[1].config_2.async_data_setup_time);
1946
1947 dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
1948 nv->bus[0].config_2.req_ack_active_negation);
1949 dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
1950 nv->bus[1].config_2.req_ack_active_negation);
1951
1952 dprintk(1, "qla1280 : data line active negation[0]=%d\n",
1953 nv->bus[0].config_2.data_line_active_negation);
1954 dprintk(1, "qla1280 : data line active negation[1]=%d\n",
1955 nv->bus[1].config_2.data_line_active_negation);
1956
1957 dprintk(1, "qla1280 : disable loading risc code=%d\n",
1958 nv->cntr_flags_1.disable_loading_risc_code);
1959
1960 dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
1961 nv->cntr_flags_1.enable_64bit_addressing);
1962
1963 dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
1964 nv->bus[0].selection_timeout);
1965 dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
1966 nv->bus[1].selection_timeout);
1967
1968 dprintk(1, "qla1280 : max queue depth[0]=%d\n",
1969 nv->bus[0].max_queue_depth);
1970 dprintk(1, "qla1280 : max queue depth[1]=%d\n",
1971 nv->bus[1].max_queue_depth);
1972}
1973
1974static void
1975qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
1976{
1977 struct nvram *nv = &ha->nvram;
1978
1979 nv->bus[bus].target[target].parameter.renegotiate_on_error = 1;
1980 nv->bus[bus].target[target].parameter.auto_request_sense = 1;
1981 nv->bus[bus].target[target].parameter.tag_queuing = 1;
1982 nv->bus[bus].target[target].parameter.enable_sync = 1;
1983#if 1 /* Some SCSI Processors do not seem to like this */
1984 nv->bus[bus].target[target].parameter.enable_wide = 1;
1985#endif
1986 nv->bus[bus].target[target].execution_throttle =
1987 nv->bus[bus].max_queue_depth - 1;
1988 nv->bus[bus].target[target].parameter.parity_checking = 1;
1989 nv->bus[bus].target[target].parameter.disconnect_allowed = 1;
1990
1991 if (IS_ISP1x160(ha)) {
1992 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
1993 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
1994 nv->bus[bus].target[target].sync_period = 9;
1995 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
1996 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
1997 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
1998 } else {
1999 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
2000 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
2001 nv->bus[bus].target[target].sync_period = 10;
2002 }
2003}
2004
2005static void
2006qla1280_set_defaults(struct scsi_qla_host *ha)
2007{
2008 struct nvram *nv = &ha->nvram;
2009 int bus, target;
2010
2011 dprintk(1, "Using defaults for NVRAM: \n");
2012 memset(nv, 0, sizeof(struct nvram));
2013
2014 /* nv->cntr_flags_1.disable_loading_risc_code = 1; */
2015 nv->firmware_feature.f.enable_fast_posting = 1;
2016 nv->firmware_feature.f.disable_synchronous_backoff = 1;
2017 nv->termination.scsi_bus_0_control = 3;
2018 nv->termination.scsi_bus_1_control = 3;
2019 nv->termination.auto_term_support = 1;
2020
2021 /*
2022 * Set default FIFO magic - What appropriate values would be here
2023 * is unknown. This is what I have found testing with 12160s.
2024 *
2025 * Now, I would love the magic decoder ring for this one, the
2026 * header file provided by QLogic seems to be bogus or incomplete
2027 * at best.
2028 */
2029 nv->isp_config.burst_enable = 1;
2030 if (IS_ISP1040(ha))
2031 nv->isp_config.fifo_threshold |= 3;
2032 else
2033 nv->isp_config.fifo_threshold |= 4;
2034
2035 if (IS_ISP1x160(ha))
2036 nv->isp_parameter = 0x01; /* fast memory enable */
2037
2038 for (bus = 0; bus < MAX_BUSES; bus++) {
2039 nv->bus[bus].config_1.initiator_id = 7;
2040 nv->bus[bus].config_2.req_ack_active_negation = 1;
2041 nv->bus[bus].config_2.data_line_active_negation = 1;
2042 nv->bus[bus].selection_timeout = 250;
2043 nv->bus[bus].max_queue_depth = 32;
2044
2045 if (IS_ISP1040(ha)) {
2046 nv->bus[bus].bus_reset_delay = 3;
2047 nv->bus[bus].config_2.async_data_setup_time = 6;
2048 nv->bus[bus].retry_delay = 1;
2049 } else {
2050 nv->bus[bus].bus_reset_delay = 5;
2051 nv->bus[bus].config_2.async_data_setup_time = 8;
2052 }
2053
2054 for (target = 0; target < MAX_TARGETS; target++)
2055 qla1280_set_target_defaults(ha, bus, target);
2056 }
2057}
2058
2059static int
2060qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
2061{
2062 struct nvram *nv = &ha->nvram;
2063 uint16_t mb[MAILBOX_REGISTER_COUNT];
2064 int status, lun;
2065 uint16_t flag;
2066
2067 /* Set Target Parameters. */
2068 mb[0] = MBC_SET_TARGET_PARAMETERS;
2069 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2070
2071 /*
2072 * Do not enable sync and ppr for the initial INQUIRY run. We
2073 * enable this later if we determine the target actually
2074 * supports it.
2075 */
2076 mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE
2077 | TP_WIDE | TP_PARITY | TP_DISCONNECT);
2078
2079 if (IS_ISP1x160(ha))
2080 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
2081 else
2082 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
2083 mb[3] |= nv->bus[bus].target[target].sync_period;
2084 status = qla1280_mailbox_command(ha, 0x0f, mb);
2085
2086 /* Save Tag queuing enable flag. */
2087 flag = (BIT_0 << target);
2088 if (nv->bus[bus].target[target].parameter.tag_queuing)
2089 ha->bus_settings[bus].qtag_enables |= flag;
2090
2091 /* Save Device enable flag. */
2092 if (IS_ISP1x160(ha)) {
2093 if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
2094 ha->bus_settings[bus].device_enables |= flag;
2095 ha->bus_settings[bus].lun_disables |= 0;
2096 } else {
2097 if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
2098 ha->bus_settings[bus].device_enables |= flag;
2099 /* Save LUN disable flag. */
2100 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
2101 ha->bus_settings[bus].lun_disables |= flag;
2102 }
2103
2104 /* Set Device Queue Parameters. */
2105 for (lun = 0; lun < MAX_LUNS; lun++) {
2106 mb[0] = MBC_SET_DEVICE_QUEUE;
2107 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2108 mb[1] |= lun;
2109 mb[2] = nv->bus[bus].max_queue_depth;
2110 mb[3] = nv->bus[bus].target[target].execution_throttle;
2111 status |= qla1280_mailbox_command(ha, 0x0f, mb);
2112 }
2113
2114 return status;
2115}
2116
2117static int
2118qla1280_config_bus(struct scsi_qla_host *ha, int bus)
2119{
2120 struct nvram *nv = &ha->nvram;
2121 uint16_t mb[MAILBOX_REGISTER_COUNT];
2122 int target, status;
2123
2124 /* SCSI Reset Disable. */
2125 ha->bus_settings[bus].disable_scsi_reset =
2126 nv->bus[bus].config_1.scsi_reset_disable;
2127
2128 /* Initiator ID. */
2129 ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
2130 mb[0] = MBC_SET_INITIATOR_ID;
2131 mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
2132 ha->bus_settings[bus].id;
2133 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2134
2135 /* Reset Delay. */
2136 ha->bus_settings[bus].bus_reset_delay =
2137 nv->bus[bus].bus_reset_delay;
2138
2139 /* Command queue depth per device. */
2140 ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
2141
2142 /* Set target parameters. */
2143 for (target = 0; target < MAX_TARGETS; target++)
2144 status |= qla1280_config_target(ha, bus, target);
2145
2146 return status;
2147}
2148
2149static int
2150qla1280_nvram_config(struct scsi_qla_host *ha)
2151{
2152 struct device_reg __iomem *reg = ha->iobase;
2153 struct nvram *nv = &ha->nvram;
2154 int bus, target, status = 0;
2155 uint16_t mb[MAILBOX_REGISTER_COUNT];
2156
2157 ENTER("qla1280_nvram_config");
2158
2159 if (ha->nvram_valid) {
2160 /* Always force AUTO sense for LINUX SCSI */
2161 for (bus = 0; bus < MAX_BUSES; bus++)
2162 for (target = 0; target < MAX_TARGETS; target++) {
2163 nv->bus[bus].target[target].parameter.
2164 auto_request_sense = 1;
2165 }
2166 } else {
2167 qla1280_set_defaults(ha);
2168 }
2169
2170 qla1280_print_settings(nv);
2171
2172 /* Disable RISC load of firmware. */
2173 ha->flags.disable_risc_code_load =
2174 nv->cntr_flags_1.disable_loading_risc_code;
2175
2176 if (IS_ISP1040(ha)) {
2177 uint16_t hwrev, cfg1, cdma_conf;
2178
2179 hwrev = RD_REG_WORD(®->cfg_0) & ISP_CFG0_HWMSK;
2180
2181 cfg1 = RD_REG_WORD(®->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6);
2182 cdma_conf = RD_REG_WORD(®->cdma_cfg);
2183
2184 /* Busted fifo, says mjacob. */
2185 if (hwrev != ISP_CFG0_1040A)
2186 cfg1 |= nv->isp_config.fifo_threshold << 4;
2187
2188 cfg1 |= nv->isp_config.burst_enable << 2;
2189 WRT_REG_WORD(®->cfg_1, cfg1);
2190
2191 WRT_REG_WORD(®->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
2192 WRT_REG_WORD(®->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
2193 } else {
2194 uint16_t cfg1, term;
2195
2196 /* Set ISP hardware DMA burst */
2197 cfg1 = nv->isp_config.fifo_threshold << 4;
2198 cfg1 |= nv->isp_config.burst_enable << 2;
2199 /* Enable DMA arbitration on dual channel controllers */
2200 if (ha->ports > 1)
2201 cfg1 |= BIT_13;
2202 WRT_REG_WORD(®->cfg_1, cfg1);
2203
2204 /* Set SCSI termination. */
2205 WRT_REG_WORD(®->gpio_enable,
2206 BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0);
2207 term = nv->termination.scsi_bus_1_control;
2208 term |= nv->termination.scsi_bus_0_control << 2;
2209 term |= nv->termination.auto_term_support << 7;
2210 RD_REG_WORD(®->id_l); /* Flush PCI write */
2211 WRT_REG_WORD(®->gpio_data, term);
2212 }
2213 RD_REG_WORD(®->id_l); /* Flush PCI write */
2214
2215 /* ISP parameter word. */
2216 mb[0] = MBC_SET_SYSTEM_PARAMETER;
2217 mb[1] = nv->isp_parameter;
2218 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2219
2220 if (IS_ISP1x40(ha)) {
2221 /* clock rate - for qla1240 and older, only */
2222 mb[0] = MBC_SET_CLOCK_RATE;
2223 mb[1] = 40;
2224 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2225 }
2226
2227 /* Firmware feature word. */
2228 mb[0] = MBC_SET_FIRMWARE_FEATURES;
2229 mb[1] = nv->firmware_feature.f.enable_fast_posting;
2230 mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1;
2231 mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5;
2232 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2233
2234 /* Retry count and delay. */
2235 mb[0] = MBC_SET_RETRY_COUNT;
2236 mb[1] = nv->bus[0].retry_count;
2237 mb[2] = nv->bus[0].retry_delay;
2238 mb[6] = nv->bus[1].retry_count;
2239 mb[7] = nv->bus[1].retry_delay;
2240 status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
2241 BIT_1 | BIT_0, &mb[0]);
2242
2243 /* ASYNC data setup time. */
2244 mb[0] = MBC_SET_ASYNC_DATA_SETUP;
2245 mb[1] = nv->bus[0].config_2.async_data_setup_time;
2246 mb[2] = nv->bus[1].config_2.async_data_setup_time;
2247 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2248
2249 /* Active negation states. */
2250 mb[0] = MBC_SET_ACTIVE_NEGATION;
2251 mb[1] = 0;
2252 if (nv->bus[0].config_2.req_ack_active_negation)
2253 mb[1] |= BIT_5;
2254 if (nv->bus[0].config_2.data_line_active_negation)
2255 mb[1] |= BIT_4;
2256 mb[2] = 0;
2257 if (nv->bus[1].config_2.req_ack_active_negation)
2258 mb[2] |= BIT_5;
2259 if (nv->bus[1].config_2.data_line_active_negation)
2260 mb[2] |= BIT_4;
2261 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2262
2263 mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
2264 mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */
2265 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2266
2267 /* thingy */
2268 mb[0] = MBC_SET_PCI_CONTROL;
2269 mb[1] = BIT_1; /* Data DMA Channel Burst Enable */
2270 mb[2] = BIT_1; /* Command DMA Channel Burst Enable */
2271 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2272
2273 mb[0] = MBC_SET_TAG_AGE_LIMIT;
2274 mb[1] = 8;
2275 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2276
2277 /* Selection timeout. */
2278 mb[0] = MBC_SET_SELECTION_TIMEOUT;
2279 mb[1] = nv->bus[0].selection_timeout;
2280 mb[2] = nv->bus[1].selection_timeout;
2281 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2282
2283 for (bus = 0; bus < ha->ports; bus++)
2284 status |= qla1280_config_bus(ha, bus);
2285
2286 if (status)
2287 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
2288
2289 LEAVE("qla1280_nvram_config");
2290 return status;
2291}
2292
2293/*
2294 * Get NVRAM data word
2295 * Calculates word position in NVRAM and calls request routine to
2296 * get the word from NVRAM.
2297 *
2298 * Input:
2299 * ha = adapter block pointer.
2300 * address = NVRAM word address.
2301 *
2302 * Returns:
2303 * data word.
2304 */
2305static uint16_t
2306qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
2307{
2308 uint32_t nv_cmd;
2309 uint16_t data;
2310
2311 nv_cmd = address << 16;
2312 nv_cmd |= NV_READ_OP;
2313
2314 data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
2315
2316 dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
2317 "0x%x", data);
2318
2319 return data;
2320}
2321
2322/*
2323 * NVRAM request
2324 * Sends read command to NVRAM and gets data from NVRAM.
2325 *
2326 * Input:
2327 * ha = adapter block pointer.
2328 * nv_cmd = Bit 26 = start bit
2329 * Bit 25, 24 = opcode
2330 * Bit 23-16 = address
2331 * Bit 15-0 = write data
2332 *
2333 * Returns:
2334 * data word.
2335 */
2336static uint16_t
2337qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
2338{
2339 struct device_reg __iomem *reg = ha->iobase;
2340 int cnt;
2341 uint16_t data = 0;
2342 uint16_t reg_data;
2343
2344 /* Send command to NVRAM. */
2345
2346 nv_cmd <<= 5;
2347 for (cnt = 0; cnt < 11; cnt++) {
2348 if (nv_cmd & BIT_31)
2349 qla1280_nv_write(ha, NV_DATA_OUT);
2350 else
2351 qla1280_nv_write(ha, 0);
2352 nv_cmd <<= 1;
2353 }
2354
2355 /* Read data from NVRAM. */
2356
2357 for (cnt = 0; cnt < 16; cnt++) {
2358 WRT_REG_WORD(®->nvram, (NV_SELECT | NV_CLOCK));
2359 RD_REG_WORD(®->id_l); /* Flush PCI write */
2360 NVRAM_DELAY();
2361 data <<= 1;
2362 reg_data = RD_REG_WORD(®->nvram);
2363 if (reg_data & NV_DATA_IN)
2364 data |= BIT_0;
2365 WRT_REG_WORD(®->nvram, NV_SELECT);
2366 RD_REG_WORD(®->id_l); /* Flush PCI write */
2367 NVRAM_DELAY();
2368 }
2369
2370 /* Deselect chip. */
2371
2372 WRT_REG_WORD(®->nvram, NV_DESELECT);
2373 RD_REG_WORD(®->id_l); /* Flush PCI write */
2374 NVRAM_DELAY();
2375
2376 return data;
2377}
2378
2379static void
2380qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
2381{
2382 struct device_reg __iomem *reg = ha->iobase;
2383
2384 WRT_REG_WORD(®->nvram, data | NV_SELECT);
2385 RD_REG_WORD(®->id_l); /* Flush PCI write */
2386 NVRAM_DELAY();
2387 WRT_REG_WORD(®->nvram, data | NV_SELECT | NV_CLOCK);
2388 RD_REG_WORD(®->id_l); /* Flush PCI write */
2389 NVRAM_DELAY();
2390 WRT_REG_WORD(®->nvram, data | NV_SELECT);
2391 RD_REG_WORD(®->id_l); /* Flush PCI write */
2392 NVRAM_DELAY();
2393}
2394
2395/*
2396 * Mailbox Command
2397 * Issue mailbox command and waits for completion.
2398 *
2399 * Input:
2400 * ha = adapter block pointer.
2401 * mr = mailbox registers to load.
2402 * mb = data pointer for mailbox registers.
2403 *
2404 * Output:
2405 * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
2406 *
2407 * Returns:
2408 * 0 = success
2409 */
2410static int
2411qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
2412{
2413 struct device_reg __iomem *reg = ha->iobase;
2414 int status = 0;
2415 int cnt;
2416 uint16_t *optr, *iptr;
2417 uint16_t __iomem *mptr;
2418 DECLARE_COMPLETION_ONSTACK(wait);
2419
2420 ENTER("qla1280_mailbox_command");
2421
2422 if (ha->mailbox_wait) {
2423 printk(KERN_ERR "Warning mailbox wait already in use!\n");
2424 }
2425 ha->mailbox_wait = &wait;
2426
2427 /*
2428 * We really should start out by verifying that the mailbox is
2429 * available before starting sending the command data
2430 */
2431 /* Load mailbox registers. */
2432 mptr = (uint16_t __iomem *) ®->mailbox0;
2433 iptr = mb;
2434 for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
2435 if (mr & BIT_0) {
2436 WRT_REG_WORD(mptr, (*iptr));
2437 }
2438
2439 mr >>= 1;
2440 mptr++;
2441 iptr++;
2442 }
2443
2444 /* Issue set host interrupt command. */
2445
2446 /* set up a timer just in case we're really jammed */
2447 timer_setup(&ha->mailbox_timer, qla1280_mailbox_timeout, 0);
2448 mod_timer(&ha->mailbox_timer, jiffies + 20 * HZ);
2449
2450 spin_unlock_irq(ha->host->host_lock);
2451 WRT_REG_WORD(®->host_cmd, HC_SET_HOST_INT);
2452 qla1280_debounce_register(®->istatus);
2453
2454 wait_for_completion(&wait);
2455 del_timer_sync(&ha->mailbox_timer);
2456
2457 spin_lock_irq(ha->host->host_lock);
2458
2459 ha->mailbox_wait = NULL;
2460
2461 /* Check for mailbox command timeout. */
2462 if (ha->mailbox_out[0] != MBS_CMD_CMP) {
2463 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
2464 "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
2465 "0x%04x\n",
2466 mb[0], ha->mailbox_out[0], RD_REG_WORD(®->istatus));
2467 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
2468 RD_REG_WORD(®->mailbox0), RD_REG_WORD(®->mailbox1),
2469 RD_REG_WORD(®->mailbox2), RD_REG_WORD(®->mailbox3));
2470 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
2471 RD_REG_WORD(®->mailbox4), RD_REG_WORD(®->mailbox5),
2472 RD_REG_WORD(®->mailbox6), RD_REG_WORD(®->mailbox7));
2473 status = 1;
2474 }
2475
2476 /* Load return mailbox registers. */
2477 optr = mb;
2478 iptr = (uint16_t *) &ha->mailbox_out[0];
2479 mr = MAILBOX_REGISTER_COUNT;
2480 memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
2481
2482 if (ha->flags.reset_marker)
2483 qla1280_rst_aen(ha);
2484
2485 if (status)
2486 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
2487 "0x%x ****\n", mb[0]);
2488
2489 LEAVE("qla1280_mailbox_command");
2490 return status;
2491}
2492
2493/*
2494 * qla1280_poll
2495 * Polls ISP for interrupts.
2496 *
2497 * Input:
2498 * ha = adapter block pointer.
2499 */
2500static void
2501qla1280_poll(struct scsi_qla_host *ha)
2502{
2503 struct device_reg __iomem *reg = ha->iobase;
2504 uint16_t data;
2505 LIST_HEAD(done_q);
2506
2507 /* ENTER("qla1280_poll"); */
2508
2509 /* Check for pending interrupts. */
2510 data = RD_REG_WORD(®->istatus);
2511 if (data & RISC_INT)
2512 qla1280_isr(ha, &done_q);
2513
2514 if (!ha->mailbox_wait) {
2515 if (ha->flags.reset_marker)
2516 qla1280_rst_aen(ha);
2517 }
2518
2519 if (!list_empty(&done_q))
2520 qla1280_done(ha);
2521
2522 /* LEAVE("qla1280_poll"); */
2523}
2524
2525/*
2526 * qla1280_bus_reset
2527 * Issue SCSI bus reset.
2528 *
2529 * Input:
2530 * ha = adapter block pointer.
2531 * bus = SCSI bus number.
2532 *
2533 * Returns:
2534 * 0 = success
2535 */
2536static int
2537qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
2538{
2539 uint16_t mb[MAILBOX_REGISTER_COUNT];
2540 uint16_t reset_delay;
2541 int status;
2542
2543 dprintk(3, "qla1280_bus_reset: entered\n");
2544
2545 if (qla1280_verbose)
2546 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
2547 ha->host_no, bus);
2548
2549 reset_delay = ha->bus_settings[bus].bus_reset_delay;
2550 mb[0] = MBC_BUS_RESET;
2551 mb[1] = reset_delay;
2552 mb[2] = (uint16_t) bus;
2553 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2554
2555 if (status) {
2556 if (ha->bus_settings[bus].failed_reset_count > 2)
2557 ha->bus_settings[bus].scsi_bus_dead = 1;
2558 ha->bus_settings[bus].failed_reset_count++;
2559 } else {
2560 spin_unlock_irq(ha->host->host_lock);
2561 ssleep(reset_delay);
2562 spin_lock_irq(ha->host->host_lock);
2563
2564 ha->bus_settings[bus].scsi_bus_dead = 0;
2565 ha->bus_settings[bus].failed_reset_count = 0;
2566 ha->bus_settings[bus].reset_marker = 0;
2567 /* Issue marker command. */
2568 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
2569 }
2570
2571 /*
2572 * We should probably call qla1280_set_target_parameters()
2573 * here as well for all devices on the bus.
2574 */
2575
2576 if (status)
2577 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
2578 else
2579 dprintk(3, "qla1280_bus_reset: exiting normally\n");
2580
2581 return status;
2582}
2583
2584/*
2585 * qla1280_device_reset
2586 * Issue bus device reset message to the target.
2587 *
2588 * Input:
2589 * ha = adapter block pointer.
2590 * bus = SCSI BUS number.
2591 * target = SCSI ID.
2592 *
2593 * Returns:
2594 * 0 = success
2595 */
2596static int
2597qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
2598{
2599 uint16_t mb[MAILBOX_REGISTER_COUNT];
2600 int status;
2601
2602 ENTER("qla1280_device_reset");
2603
2604 mb[0] = MBC_ABORT_TARGET;
2605 mb[1] = (bus ? (target | BIT_7) : target) << 8;
2606 mb[2] = 1;
2607 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2608
2609 /* Issue marker command. */
2610 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
2611
2612 if (status)
2613 dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
2614
2615 LEAVE("qla1280_device_reset");
2616 return status;
2617}
2618
2619/*
2620 * qla1280_abort_command
2621 * Abort command aborts a specified IOCB.
2622 *
2623 * Input:
2624 * ha = adapter block pointer.
2625 * sp = SB structure pointer.
2626 *
2627 * Returns:
2628 * 0 = success
2629 */
2630static int
2631qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
2632{
2633 uint16_t mb[MAILBOX_REGISTER_COUNT];
2634 unsigned int bus, target, lun;
2635 int status;
2636
2637 ENTER("qla1280_abort_command");
2638
2639 bus = SCSI_BUS_32(sp->cmd);
2640 target = SCSI_TCN_32(sp->cmd);
2641 lun = SCSI_LUN_32(sp->cmd);
2642
2643 sp->flags |= SRB_ABORT_PENDING;
2644
2645 mb[0] = MBC_ABORT_COMMAND;
2646 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2647 mb[2] = handle >> 16;
2648 mb[3] = handle & 0xffff;
2649 status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
2650
2651 if (status) {
2652 dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
2653 sp->flags &= ~SRB_ABORT_PENDING;
2654 }
2655
2656
2657 LEAVE("qla1280_abort_command");
2658 return status;
2659}
2660
2661/*
2662 * qla1280_reset_adapter
2663 * Reset adapter.
2664 *
2665 * Input:
2666 * ha = adapter block pointer.
2667 */
2668static void
2669qla1280_reset_adapter(struct scsi_qla_host *ha)
2670{
2671 struct device_reg __iomem *reg = ha->iobase;
2672
2673 ENTER("qla1280_reset_adapter");
2674
2675 /* Disable ISP chip */
2676 ha->flags.online = 0;
2677 WRT_REG_WORD(®->ictrl, ISP_RESET);
2678 WRT_REG_WORD(®->host_cmd,
2679 HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
2680 RD_REG_WORD(®->id_l); /* Flush PCI write */
2681
2682 LEAVE("qla1280_reset_adapter");
2683}
2684
2685/*
2686 * Issue marker command.
2687 * Function issues marker IOCB.
2688 *
2689 * Input:
2690 * ha = adapter block pointer.
2691 * bus = SCSI BUS number
2692 * id = SCSI ID
2693 * lun = SCSI LUN
2694 * type = marker modifier
2695 */
2696static void
2697qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
2698{
2699 struct mrk_entry *pkt;
2700
2701 ENTER("qla1280_marker");
2702
2703 /* Get request packet. */
2704 if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
2705 pkt->entry_type = MARKER_TYPE;
2706 pkt->lun = (uint8_t) lun;
2707 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
2708 pkt->modifier = type;
2709 pkt->entry_status = 0;
2710
2711 /* Issue command to ISP */
2712 qla1280_isp_cmd(ha);
2713 }
2714
2715 LEAVE("qla1280_marker");
2716}
2717
2718
2719/*
2720 * qla1280_64bit_start_scsi
2721 * The start SCSI is responsible for building request packets on
2722 * request ring and modifying ISP input pointer.
2723 *
2724 * Input:
2725 * ha = adapter block pointer.
2726 * sp = SB structure pointer.
2727 *
2728 * Returns:
2729 * 0 = success, was able to issue command.
2730 */
2731#ifdef QLA_64BIT_PTR
2732static int
2733qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2734{
2735 struct device_reg __iomem *reg = ha->iobase;
2736 struct scsi_cmnd *cmd = sp->cmd;
2737 cmd_a64_entry_t *pkt;
2738 __le32 *dword_ptr;
2739 dma_addr_t dma_handle;
2740 int status = 0;
2741 int cnt;
2742 int req_cnt;
2743 int seg_cnt;
2744 u8 dir;
2745
2746 ENTER("qla1280_64bit_start_scsi:");
2747
2748 /* Calculate number of entries and segments required. */
2749 req_cnt = 1;
2750 seg_cnt = scsi_dma_map(cmd);
2751 if (seg_cnt > 0) {
2752 if (seg_cnt > 2) {
2753 req_cnt += (seg_cnt - 2) / 5;
2754 if ((seg_cnt - 2) % 5)
2755 req_cnt++;
2756 }
2757 } else if (seg_cnt < 0) {
2758 status = 1;
2759 goto out;
2760 }
2761
2762 if ((req_cnt + 2) >= ha->req_q_cnt) {
2763 /* Calculate number of free request entries. */
2764 cnt = RD_REG_WORD(®->mailbox4);
2765 if (ha->req_ring_index < cnt)
2766 ha->req_q_cnt = cnt - ha->req_ring_index;
2767 else
2768 ha->req_q_cnt =
2769 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
2770 }
2771
2772 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
2773 ha->req_q_cnt, seg_cnt);
2774
2775 /* If room for request in request ring. */
2776 if ((req_cnt + 2) >= ha->req_q_cnt) {
2777 status = SCSI_MLQUEUE_HOST_BUSY;
2778 dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt="
2779 "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
2780 req_cnt);
2781 goto out;
2782 }
2783
2784 /* Check for room in outstanding command list. */
2785 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
2786 ha->outstanding_cmds[cnt] != NULL; cnt++);
2787
2788 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
2789 status = SCSI_MLQUEUE_HOST_BUSY;
2790 dprintk(2, "qla1280_start_scsi: NO ROOM IN "
2791 "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
2792 goto out;
2793 }
2794
2795 ha->outstanding_cmds[cnt] = sp;
2796 ha->req_q_cnt -= req_cnt;
2797 CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
2798
2799 dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
2800 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
2801 dprintk(2, " bus %i, target %i, lun %i\n",
2802 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2803 qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
2804
2805 /*
2806 * Build command packet.
2807 */
2808 pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
2809
2810 pkt->entry_type = COMMAND_A64_TYPE;
2811 pkt->entry_count = (uint8_t) req_cnt;
2812 pkt->sys_define = (uint8_t) ha->req_ring_index;
2813 pkt->entry_status = 0;
2814 pkt->handle = cpu_to_le32(cnt);
2815
2816 /* Zero out remaining portion of packet. */
2817 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
2818
2819 /* Set ISP command timeout. */
2820 pkt->timeout = cpu_to_le16(scsi_cmd_to_rq(cmd)->timeout / HZ);
2821
2822 /* Set device target ID and LUN */
2823 pkt->lun = SCSI_LUN_32(cmd);
2824 pkt->target = SCSI_BUS_32(cmd) ?
2825 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
2826
2827 /* Enable simple tag queuing if device supports it. */
2828 if (cmd->device->simple_tags)
2829 pkt->control_flags |= cpu_to_le16(BIT_3);
2830
2831 /* Load SCSI command packet. */
2832 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
2833 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
2834 /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
2835
2836 /* Set transfer direction. */
2837 dir = qla1280_data_direction(cmd);
2838 pkt->control_flags |= cpu_to_le16(dir);
2839
2840 /* Set total data segment count. */
2841 pkt->dseg_count = cpu_to_le16(seg_cnt);
2842
2843 /*
2844 * Load data segments.
2845 */
2846 if (seg_cnt) { /* If data transfer. */
2847 struct scatterlist *sg, *s;
2848 int remseg = seg_cnt;
2849
2850 sg = scsi_sglist(cmd);
2851
2852 /* Setup packet address segment pointer. */
2853 dword_ptr = (u32 *)&pkt->dseg_0_address;
2854
2855 /* Load command entry data segments. */
2856 for_each_sg(sg, s, seg_cnt, cnt) {
2857 if (cnt == 2)
2858 break;
2859
2860 dma_handle = sg_dma_address(s);
2861 *dword_ptr++ =
2862 cpu_to_le32(lower_32_bits(dma_handle));
2863 *dword_ptr++ =
2864 cpu_to_le32(upper_32_bits(dma_handle));
2865 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
2866 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
2867 cpu_to_le32(upper_32_bits(dma_handle)),
2868 cpu_to_le32(lower_32_bits(dma_handle)),
2869 cpu_to_le32(sg_dma_len(sg_next(s))));
2870 remseg--;
2871 }
2872 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
2873 "command packet data - b %i, t %i, l %i \n",
2874 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
2875 SCSI_LUN_32(cmd));
2876 qla1280_dump_buffer(5, (char *)pkt,
2877 REQUEST_ENTRY_SIZE);
2878
2879 /*
2880 * Build continuation packets.
2881 */
2882 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
2883 "remains\n", seg_cnt);
2884
2885 while (remseg > 0) {
2886 /* Update sg start */
2887 sg = s;
2888 /* Adjust ring index. */
2889 ha->req_ring_index++;
2890 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2891 ha->req_ring_index = 0;
2892 ha->request_ring_ptr =
2893 ha->request_ring;
2894 } else
2895 ha->request_ring_ptr++;
2896
2897 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
2898
2899 /* Zero out packet. */
2900 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2901
2902 /* Load packet defaults. */
2903 ((struct cont_a64_entry *) pkt)->entry_type =
2904 CONTINUE_A64_TYPE;
2905 ((struct cont_a64_entry *) pkt)->entry_count = 1;
2906 ((struct cont_a64_entry *) pkt)->sys_define =
2907 (uint8_t)ha->req_ring_index;
2908 /* Setup packet address segment pointer. */
2909 dword_ptr =
2910 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
2911
2912 /* Load continuation entry data segments. */
2913 for_each_sg(sg, s, remseg, cnt) {
2914 if (cnt == 5)
2915 break;
2916 dma_handle = sg_dma_address(s);
2917 *dword_ptr++ =
2918 cpu_to_le32(lower_32_bits(dma_handle));
2919 *dword_ptr++ =
2920 cpu_to_le32(upper_32_bits(dma_handle));
2921 *dword_ptr++ =
2922 cpu_to_le32(sg_dma_len(s));
2923 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
2924 cpu_to_le32(upper_32_bits(dma_handle)),
2925 cpu_to_le32(lower_32_bits(dma_handle)),
2926 cpu_to_le32(sg_dma_len(s)));
2927 }
2928 remseg -= cnt;
2929 dprintk(5, "qla1280_64bit_start_scsi: "
2930 "continuation packet data - b %i, t "
2931 "%i, l %i \n", SCSI_BUS_32(cmd),
2932 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2933 qla1280_dump_buffer(5, (char *)pkt,
2934 REQUEST_ENTRY_SIZE);
2935 }
2936 } else { /* No data transfer */
2937 dprintk(5, "qla1280_64bit_start_scsi: No data, command "
2938 "packet data - b %i, t %i, l %i \n",
2939 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2940 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
2941 }
2942 /* Adjust ring index. */
2943 ha->req_ring_index++;
2944 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2945 ha->req_ring_index = 0;
2946 ha->request_ring_ptr = ha->request_ring;
2947 } else
2948 ha->request_ring_ptr++;
2949
2950 /* Set chip new ring index. */
2951 dprintk(2,
2952 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
2953 sp->flags |= SRB_SENT;
2954 ha->actthreads++;
2955 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
2956
2957 out:
2958 if (status)
2959 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
2960 else
2961 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
2962
2963 return status;
2964}
2965#else /* !QLA_64BIT_PTR */
2966
2967/*
2968 * qla1280_32bit_start_scsi
2969 * The start SCSI is responsible for building request packets on
2970 * request ring and modifying ISP input pointer.
2971 *
2972 * The Qlogic firmware interface allows every queue slot to have a SCSI
2973 * command and up to 4 scatter/gather (SG) entries. If we need more
2974 * than 4 SG entries, then continuation entries are used that can
2975 * hold another 7 entries each. The start routine determines if there
2976 * is eought empty slots then build the combination of requests to
2977 * fulfill the OS request.
2978 *
2979 * Input:
2980 * ha = adapter block pointer.
2981 * sp = SCSI Request Block structure pointer.
2982 *
2983 * Returns:
2984 * 0 = success, was able to issue command.
2985 */
2986static int
2987qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2988{
2989 struct device_reg __iomem *reg = ha->iobase;
2990 struct scsi_cmnd *cmd = sp->cmd;
2991 struct cmd_entry *pkt;
2992 __le32 *dword_ptr;
2993 int status = 0;
2994 int cnt;
2995 int req_cnt;
2996 int seg_cnt;
2997 u8 dir;
2998
2999 ENTER("qla1280_32bit_start_scsi");
3000
3001 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
3002 cmd->cmnd[0]);
3003
3004 /* Calculate number of entries and segments required. */
3005 req_cnt = 1;
3006 seg_cnt = scsi_dma_map(cmd);
3007 if (seg_cnt) {
3008 /*
3009 * if greater than four sg entries then we need to allocate
3010 * continuation entries
3011 */
3012 if (seg_cnt > 4) {
3013 req_cnt += (seg_cnt - 4) / 7;
3014 if ((seg_cnt - 4) % 7)
3015 req_cnt++;
3016 }
3017 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
3018 cmd, seg_cnt, req_cnt);
3019 } else if (seg_cnt < 0) {
3020 status = 1;
3021 goto out;
3022 }
3023
3024 if ((req_cnt + 2) >= ha->req_q_cnt) {
3025 /* Calculate number of free request entries. */
3026 cnt = RD_REG_WORD(®->mailbox4);
3027 if (ha->req_ring_index < cnt)
3028 ha->req_q_cnt = cnt - ha->req_ring_index;
3029 else
3030 ha->req_q_cnt =
3031 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3032 }
3033
3034 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
3035 ha->req_q_cnt, seg_cnt);
3036 /* If room for request in request ring. */
3037 if ((req_cnt + 2) >= ha->req_q_cnt) {
3038 status = SCSI_MLQUEUE_HOST_BUSY;
3039 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
3040 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
3041 ha->req_q_cnt, req_cnt);
3042 goto out;
3043 }
3044
3045 /* Check for empty slot in outstanding command list. */
3046 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3047 ha->outstanding_cmds[cnt]; cnt++);
3048
3049 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
3050 status = SCSI_MLQUEUE_HOST_BUSY;
3051 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
3052 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
3053 goto out;
3054 }
3055
3056 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
3057 ha->outstanding_cmds[cnt] = sp;
3058 ha->req_q_cnt -= req_cnt;
3059
3060 /*
3061 * Build command packet.
3062 */
3063 pkt = (struct cmd_entry *) ha->request_ring_ptr;
3064
3065 pkt->entry_type = COMMAND_TYPE;
3066 pkt->entry_count = (uint8_t) req_cnt;
3067 pkt->sys_define = (uint8_t) ha->req_ring_index;
3068 pkt->entry_status = 0;
3069 pkt->handle = cpu_to_le32(cnt);
3070
3071 /* Zero out remaining portion of packet. */
3072 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3073
3074 /* Set ISP command timeout. */
3075 pkt->timeout = cpu_to_le16(scsi_cmd_to_rq(cmd)->timeout / HZ);
3076
3077 /* Set device target ID and LUN */
3078 pkt->lun = SCSI_LUN_32(cmd);
3079 pkt->target = SCSI_BUS_32(cmd) ?
3080 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3081
3082 /* Enable simple tag queuing if device supports it. */
3083 if (cmd->device->simple_tags)
3084 pkt->control_flags |= cpu_to_le16(BIT_3);
3085
3086 /* Load SCSI command packet. */
3087 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
3088 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
3089
3090 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3091 /* Set transfer direction. */
3092 dir = qla1280_data_direction(cmd);
3093 pkt->control_flags |= cpu_to_le16(dir);
3094
3095 /* Set total data segment count. */
3096 pkt->dseg_count = cpu_to_le16(seg_cnt);
3097
3098 /*
3099 * Load data segments.
3100 */
3101 if (seg_cnt) {
3102 struct scatterlist *sg, *s;
3103 int remseg = seg_cnt;
3104
3105 sg = scsi_sglist(cmd);
3106
3107 /* Setup packet address segment pointer. */
3108 dword_ptr = &pkt->dseg_0_address;
3109
3110 dprintk(3, "Building S/G data segments..\n");
3111 qla1280_dump_buffer(1, (char *)sg, 4 * 16);
3112
3113 /* Load command entry data segments. */
3114 for_each_sg(sg, s, seg_cnt, cnt) {
3115 if (cnt == 4)
3116 break;
3117 *dword_ptr++ =
3118 cpu_to_le32(lower_32_bits(sg_dma_address(s)));
3119 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
3120 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
3121 (lower_32_bits(sg_dma_address(s))),
3122 (sg_dma_len(s)));
3123 remseg--;
3124 }
3125 /*
3126 * Build continuation packets.
3127 */
3128 dprintk(3, "S/G Building Continuation"
3129 "...seg_cnt=0x%x remains\n", seg_cnt);
3130 while (remseg > 0) {
3131 /* Continue from end point */
3132 sg = s;
3133 /* Adjust ring index. */
3134 ha->req_ring_index++;
3135 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3136 ha->req_ring_index = 0;
3137 ha->request_ring_ptr =
3138 ha->request_ring;
3139 } else
3140 ha->request_ring_ptr++;
3141
3142 pkt = (struct cmd_entry *)ha->request_ring_ptr;
3143
3144 /* Zero out packet. */
3145 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3146
3147 /* Load packet defaults. */
3148 ((struct cont_entry *) pkt)->
3149 entry_type = CONTINUE_TYPE;
3150 ((struct cont_entry *) pkt)->entry_count = 1;
3151
3152 ((struct cont_entry *) pkt)->sys_define =
3153 (uint8_t) ha->req_ring_index;
3154
3155 /* Setup packet address segment pointer. */
3156 dword_ptr =
3157 &((struct cont_entry *) pkt)->dseg_0_address;
3158
3159 /* Load continuation entry data segments. */
3160 for_each_sg(sg, s, remseg, cnt) {
3161 if (cnt == 7)
3162 break;
3163 *dword_ptr++ =
3164 cpu_to_le32(lower_32_bits(sg_dma_address(s)));
3165 *dword_ptr++ =
3166 cpu_to_le32(sg_dma_len(s));
3167 dprintk(1,
3168 "S/G Segment Cont. phys_addr=0x%x, "
3169 "len=0x%x\n",
3170 cpu_to_le32(lower_32_bits(sg_dma_address(s))),
3171 cpu_to_le32(sg_dma_len(s)));
3172 }
3173 remseg -= cnt;
3174 dprintk(5, "qla1280_32bit_start_scsi: "
3175 "continuation packet data - "
3176 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
3177 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3178 qla1280_dump_buffer(5, (char *)pkt,
3179 REQUEST_ENTRY_SIZE);
3180 }
3181 } else { /* No data transfer at all */
3182 dprintk(5, "qla1280_32bit_start_scsi: No data, command "
3183 "packet data - \n");
3184 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3185 }
3186 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
3187 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3188 REQUEST_ENTRY_SIZE);
3189
3190 /* Adjust ring index. */
3191 ha->req_ring_index++;
3192 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3193 ha->req_ring_index = 0;
3194 ha->request_ring_ptr = ha->request_ring;
3195 } else
3196 ha->request_ring_ptr++;
3197
3198 /* Set chip new ring index. */
3199 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
3200 "for pending command\n");
3201 sp->flags |= SRB_SENT;
3202 ha->actthreads++;
3203 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
3204
3205out:
3206 if (status)
3207 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
3208
3209 LEAVE("qla1280_32bit_start_scsi");
3210
3211 return status;
3212}
3213#endif
3214
3215/*
3216 * qla1280_req_pkt
3217 * Function is responsible for locking ring and
3218 * getting a zeroed out request packet.
3219 *
3220 * Input:
3221 * ha = adapter block pointer.
3222 *
3223 * Returns:
3224 * 0 = failed to get slot.
3225 */
3226static request_t *
3227qla1280_req_pkt(struct scsi_qla_host *ha)
3228{
3229 struct device_reg __iomem *reg = ha->iobase;
3230 request_t *pkt = NULL;
3231 int cnt;
3232 uint32_t timer;
3233
3234 ENTER("qla1280_req_pkt");
3235
3236 /*
3237 * This can be called from interrupt context, damn it!!!
3238 */
3239 /* Wait for 30 seconds for slot. */
3240 for (timer = 15000000; timer; timer--) {
3241 if (ha->req_q_cnt > 0) {
3242 /* Calculate number of free request entries. */
3243 cnt = RD_REG_WORD(®->mailbox4);
3244 if (ha->req_ring_index < cnt)
3245 ha->req_q_cnt = cnt - ha->req_ring_index;
3246 else
3247 ha->req_q_cnt =
3248 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3249 }
3250
3251 /* Found empty request ring slot? */
3252 if (ha->req_q_cnt > 0) {
3253 ha->req_q_cnt--;
3254 pkt = ha->request_ring_ptr;
3255
3256 /* Zero out packet. */
3257 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3258
3259 /*
3260 * How can this be right when we have a ring
3261 * size of 512???
3262 */
3263 /* Set system defined field. */
3264 pkt->sys_define = (uint8_t) ha->req_ring_index;
3265
3266 /* Set entry count. */
3267 pkt->entry_count = 1;
3268
3269 break;
3270 }
3271
3272 udelay(2); /* 10 */
3273
3274 /* Check for pending interrupts. */
3275 qla1280_poll(ha);
3276 }
3277
3278 if (!pkt)
3279 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
3280 else
3281 dprintk(3, "qla1280_req_pkt: exiting normally\n");
3282
3283 return pkt;
3284}
3285
3286/*
3287 * qla1280_isp_cmd
3288 * Function is responsible for modifying ISP input pointer.
3289 * Releases ring lock.
3290 *
3291 * Input:
3292 * ha = adapter block pointer.
3293 */
3294static void
3295qla1280_isp_cmd(struct scsi_qla_host *ha)
3296{
3297 struct device_reg __iomem *reg = ha->iobase;
3298
3299 ENTER("qla1280_isp_cmd");
3300
3301 dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
3302 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3303 REQUEST_ENTRY_SIZE);
3304
3305 /* Adjust ring index. */
3306 ha->req_ring_index++;
3307 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3308 ha->req_ring_index = 0;
3309 ha->request_ring_ptr = ha->request_ring;
3310 } else
3311 ha->request_ring_ptr++;
3312
3313 /*
3314 * Update request index to mailbox4 (Request Queue In).
3315 */
3316 WRT_REG_WORD(®->mailbox4, ha->req_ring_index);
3317
3318 LEAVE("qla1280_isp_cmd");
3319}
3320
3321/****************************************************************************/
3322/* Interrupt Service Routine. */
3323/****************************************************************************/
3324
3325/****************************************************************************
3326 * qla1280_isr
3327 * Calls I/O done on command completion.
3328 *
3329 * Input:
3330 * ha = adapter block pointer.
3331 * done_q = done queue.
3332 ****************************************************************************/
3333static void
3334qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
3335{
3336 struct device_reg __iomem *reg = ha->iobase;
3337 struct response *pkt;
3338 struct srb *sp = NULL;
3339 uint16_t mailbox[MAILBOX_REGISTER_COUNT];
3340 uint16_t *wptr;
3341 uint32_t index;
3342 u16 istatus;
3343
3344 ENTER("qla1280_isr");
3345
3346 istatus = RD_REG_WORD(®->istatus);
3347 if (!(istatus & (RISC_INT | PCI_INT)))
3348 return;
3349
3350 /* Save mailbox register 5 */
3351 mailbox[5] = RD_REG_WORD(®->mailbox5);
3352
3353 /* Check for mailbox interrupt. */
3354
3355 mailbox[0] = RD_REG_WORD_dmasync(®->semaphore);
3356
3357 if (mailbox[0] & BIT_0) {
3358 /* Get mailbox data. */
3359 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
3360
3361 wptr = &mailbox[0];
3362 *wptr++ = RD_REG_WORD(®->mailbox0);
3363 *wptr++ = RD_REG_WORD(®->mailbox1);
3364 *wptr = RD_REG_WORD(®->mailbox2);
3365 if (mailbox[0] != MBA_SCSI_COMPLETION) {
3366 wptr++;
3367 *wptr++ = RD_REG_WORD(®->mailbox3);
3368 *wptr++ = RD_REG_WORD(®->mailbox4);
3369 wptr++;
3370 *wptr++ = RD_REG_WORD(®->mailbox6);
3371 *wptr = RD_REG_WORD(®->mailbox7);
3372 }
3373
3374 /* Release mailbox registers. */
3375
3376 WRT_REG_WORD(®->semaphore, 0);
3377 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
3378
3379 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
3380 mailbox[0]);
3381
3382 /* Handle asynchronous event */
3383 switch (mailbox[0]) {
3384 case MBA_SCSI_COMPLETION: /* Response completion */
3385 dprintk(5, "qla1280_isr: mailbox SCSI response "
3386 "completion\n");
3387
3388 if (ha->flags.online) {
3389 /* Get outstanding command index. */
3390 index = mailbox[2] << 16 | mailbox[1];
3391
3392 /* Validate handle. */
3393 if (index < MAX_OUTSTANDING_COMMANDS)
3394 sp = ha->outstanding_cmds[index];
3395 else
3396 sp = NULL;
3397
3398 if (sp) {
3399 /* Free outstanding command slot. */
3400 ha->outstanding_cmds[index] = NULL;
3401
3402 /* Save ISP completion status */
3403 CMD_RESULT(sp->cmd) = 0;
3404 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3405
3406 /* Place block on done queue */
3407 list_add_tail(&sp->list, done_q);
3408 } else {
3409 /*
3410 * If we get here we have a real problem!
3411 */
3412 printk(KERN_WARNING
3413 "qla1280: ISP invalid handle\n");
3414 }
3415 }
3416 break;
3417
3418 case MBA_BUS_RESET: /* SCSI Bus Reset */
3419 ha->flags.reset_marker = 1;
3420 index = mailbox[6] & BIT_0;
3421 ha->bus_settings[index].reset_marker = 1;
3422
3423 printk(KERN_DEBUG "qla1280_isr(): index %i "
3424 "asynchronous BUS_RESET\n", index);
3425 break;
3426
3427 case MBA_SYSTEM_ERR: /* System Error */
3428 printk(KERN_WARNING
3429 "qla1280: ISP System Error - mbx1=%xh, mbx2="
3430 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
3431 mailbox[3]);
3432 break;
3433
3434 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
3435 printk(KERN_WARNING
3436 "qla1280: ISP Request Transfer Error\n");
3437 break;
3438
3439 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
3440 printk(KERN_WARNING
3441 "qla1280: ISP Response Transfer Error\n");
3442 break;
3443
3444 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
3445 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
3446 break;
3447
3448 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */
3449 dprintk(2,
3450 "qla1280_isr: asynchronous TIMEOUT_RESET\n");
3451 break;
3452
3453 case MBA_DEVICE_RESET: /* Bus Device Reset */
3454 printk(KERN_INFO "qla1280_isr(): asynchronous "
3455 "BUS_DEVICE_RESET\n");
3456
3457 ha->flags.reset_marker = 1;
3458 index = mailbox[6] & BIT_0;
3459 ha->bus_settings[index].reset_marker = 1;
3460 break;
3461
3462 case MBA_BUS_MODE_CHANGE:
3463 dprintk(2,
3464 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
3465 break;
3466
3467 default:
3468 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
3469 if (mailbox[0] < MBA_ASYNC_EVENT) {
3470 wptr = &mailbox[0];
3471 memcpy((uint16_t *) ha->mailbox_out, wptr,
3472 MAILBOX_REGISTER_COUNT *
3473 sizeof(uint16_t));
3474
3475 if(ha->mailbox_wait != NULL)
3476 complete(ha->mailbox_wait);
3477 }
3478 break;
3479 }
3480 } else {
3481 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT);
3482 }
3483
3484 /*
3485 * We will receive interrupts during mailbox testing prior to
3486 * the card being marked online, hence the double check.
3487 */
3488 if (!(ha->flags.online && !ha->mailbox_wait)) {
3489 dprintk(2, "qla1280_isr: Response pointer Error\n");
3490 goto out;
3491 }
3492
3493 if (mailbox[5] >= RESPONSE_ENTRY_CNT)
3494 goto out;
3495
3496 while (ha->rsp_ring_index != mailbox[5]) {
3497 pkt = ha->response_ring_ptr;
3498
3499 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
3500 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
3501 dprintk(5,"qla1280_isr: response packet data\n");
3502 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
3503
3504 if (pkt->entry_type == STATUS_TYPE) {
3505 if ((le16_to_cpu(pkt->scsi_status) & 0xff)
3506 || pkt->comp_status || pkt->entry_status) {
3507 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3508 "0x%x mailbox[5] = 0x%x, comp_status "
3509 "= 0x%x, scsi_status = 0x%x\n",
3510 ha->rsp_ring_index, mailbox[5],
3511 le16_to_cpu(pkt->comp_status),
3512 le16_to_cpu(pkt->scsi_status));
3513 }
3514 } else {
3515 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3516 "0x%x, mailbox[5] = 0x%x\n",
3517 ha->rsp_ring_index, mailbox[5]);
3518 dprintk(2, "qla1280_isr: response packet data\n");
3519 qla1280_dump_buffer(2, (char *)pkt,
3520 RESPONSE_ENTRY_SIZE);
3521 }
3522
3523 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
3524 dprintk(2, "status: Cmd %p, handle %i\n",
3525 ha->outstanding_cmds[pkt->handle]->cmd,
3526 pkt->handle);
3527 if (pkt->entry_type == STATUS_TYPE)
3528 qla1280_status_entry(ha, pkt, done_q);
3529 else
3530 qla1280_error_entry(ha, pkt, done_q);
3531 /* Adjust ring index. */
3532 ha->rsp_ring_index++;
3533 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
3534 ha->rsp_ring_index = 0;
3535 ha->response_ring_ptr = ha->response_ring;
3536 } else
3537 ha->response_ring_ptr++;
3538 WRT_REG_WORD(®->mailbox5, ha->rsp_ring_index);
3539 }
3540 }
3541
3542 out:
3543 LEAVE("qla1280_isr");
3544}
3545
3546/*
3547 * qla1280_rst_aen
3548 * Processes asynchronous reset.
3549 *
3550 * Input:
3551 * ha = adapter block pointer.
3552 */
3553static void
3554qla1280_rst_aen(struct scsi_qla_host *ha)
3555{
3556 uint8_t bus;
3557
3558 ENTER("qla1280_rst_aen");
3559
3560 if (ha->flags.online && !ha->flags.reset_active &&
3561 !ha->flags.abort_isp_active) {
3562 ha->flags.reset_active = 1;
3563 while (ha->flags.reset_marker) {
3564 /* Issue marker command. */
3565 ha->flags.reset_marker = 0;
3566 for (bus = 0; bus < ha->ports &&
3567 !ha->flags.reset_marker; bus++) {
3568 if (ha->bus_settings[bus].reset_marker) {
3569 ha->bus_settings[bus].reset_marker = 0;
3570 qla1280_marker(ha, bus, 0, 0,
3571 MK_SYNC_ALL);
3572 }
3573 }
3574 }
3575 }
3576
3577 LEAVE("qla1280_rst_aen");
3578}
3579
3580
3581/*
3582 * qla1280_status_entry
3583 * Processes received ISP status entry.
3584 *
3585 * Input:
3586 * ha = adapter block pointer.
3587 * pkt = entry pointer.
3588 * done_q = done queue.
3589 */
3590static void
3591qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
3592 struct list_head *done_q)
3593{
3594 int sense_sz;
3595 struct srb *sp;
3596 struct scsi_cmnd *cmd;
3597 uint32_t handle = le32_to_cpu(pkt->handle);
3598 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
3599 uint16_t comp_status = le16_to_cpu(pkt->comp_status);
3600
3601 ENTER("qla1280_status_entry");
3602
3603 /* Validate handle. */
3604 if (handle < MAX_OUTSTANDING_COMMANDS)
3605 sp = ha->outstanding_cmds[handle];
3606 else
3607 sp = NULL;
3608
3609 if (!sp) {
3610 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
3611 goto out;
3612 }
3613
3614 /* Free outstanding command slot. */
3615 ha->outstanding_cmds[handle] = NULL;
3616
3617 cmd = sp->cmd;
3618
3619 if (comp_status || scsi_status) {
3620 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
3621 "0x%x, handle = 0x%x\n", comp_status,
3622 scsi_status, handle);
3623 }
3624
3625 /* Target busy or queue full */
3626 if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL ||
3627 (scsi_status & 0xFF) == SAM_STAT_BUSY) {
3628 CMD_RESULT(cmd) = scsi_status & 0xff;
3629 } else {
3630
3631 /* Save ISP completion status */
3632 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
3633
3634 if (scsi_status & SAM_STAT_CHECK_CONDITION) {
3635 if (comp_status != CS_ARS_FAILED) {
3636 uint16_t req_sense_length =
3637 le16_to_cpu(pkt->req_sense_length);
3638 if (req_sense_length < CMD_SNSLEN(cmd))
3639 sense_sz = req_sense_length;
3640 else
3641 /*
3642 * scsi_cmnd->sense_buffer is
3643 * 64 bytes, why only copy 63?
3644 * This looks wrong! /Jes
3645 */
3646 sense_sz = CMD_SNSLEN(cmd) - 1;
3647
3648 memcpy(cmd->sense_buffer,
3649 &pkt->req_sense_data, sense_sz);
3650 } else
3651 sense_sz = 0;
3652 memset(cmd->sense_buffer + sense_sz, 0,
3653 SCSI_SENSE_BUFFERSIZE - sense_sz);
3654
3655 dprintk(2, "qla1280_status_entry: Check "
3656 "condition Sense data, b %i, t %i, "
3657 "l %i\n", SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
3658 SCSI_LUN_32(cmd));
3659 if (sense_sz)
3660 qla1280_dump_buffer(2,
3661 (char *)cmd->sense_buffer,
3662 sense_sz);
3663 }
3664 }
3665
3666 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3667
3668 /* Place command on done queue. */
3669 list_add_tail(&sp->list, done_q);
3670 out:
3671 LEAVE("qla1280_status_entry");
3672}
3673
3674/*
3675 * qla1280_error_entry
3676 * Processes error entry.
3677 *
3678 * Input:
3679 * ha = adapter block pointer.
3680 * pkt = entry pointer.
3681 * done_q = done queue.
3682 */
3683static void
3684qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
3685 struct list_head *done_q)
3686{
3687 struct srb *sp;
3688 uint32_t handle = le32_to_cpu(pkt->handle);
3689
3690 ENTER("qla1280_error_entry");
3691
3692 if (pkt->entry_status & BIT_3)
3693 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
3694 else if (pkt->entry_status & BIT_2)
3695 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
3696 else if (pkt->entry_status & BIT_1)
3697 dprintk(2, "qla1280_error_entry: FULL flag error\n");
3698 else
3699 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
3700
3701 /* Validate handle. */
3702 if (handle < MAX_OUTSTANDING_COMMANDS)
3703 sp = ha->outstanding_cmds[handle];
3704 else
3705 sp = NULL;
3706
3707 if (sp) {
3708 /* Free outstanding command slot. */
3709 ha->outstanding_cmds[handle] = NULL;
3710
3711 /* Bad payload or header */
3712 if (pkt->entry_status & (BIT_3 + BIT_2)) {
3713 /* Bad payload or header, set error status. */
3714 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
3715 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3716 } else if (pkt->entry_status & BIT_1) { /* FULL flag */
3717 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
3718 } else {
3719 /* Set error status. */
3720 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3721 }
3722
3723 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3724
3725 /* Place command on done queue. */
3726 list_add_tail(&sp->list, done_q);
3727 }
3728#ifdef QLA_64BIT_PTR
3729 else if (pkt->entry_type == COMMAND_A64_TYPE) {
3730 printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
3731 }
3732#endif
3733
3734 LEAVE("qla1280_error_entry");
3735}
3736
3737/*
3738 * qla1280_abort_isp
3739 * Resets ISP and aborts all outstanding commands.
3740 *
3741 * Input:
3742 * ha = adapter block pointer.
3743 *
3744 * Returns:
3745 * 0 = success
3746 */
3747static int
3748qla1280_abort_isp(struct scsi_qla_host *ha)
3749{
3750 struct device_reg __iomem *reg = ha->iobase;
3751 struct srb *sp;
3752 int status = 0;
3753 int cnt;
3754 int bus;
3755
3756 ENTER("qla1280_abort_isp");
3757
3758 if (ha->flags.abort_isp_active || !ha->flags.online)
3759 goto out;
3760
3761 ha->flags.abort_isp_active = 1;
3762
3763 /* Disable ISP interrupts. */
3764 qla1280_disable_intrs(ha);
3765 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC);
3766 RD_REG_WORD(®->id_l);
3767
3768 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
3769 ha->host_no);
3770 /* Dequeue all commands in outstanding command list. */
3771 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3772 struct scsi_cmnd *cmd;
3773 sp = ha->outstanding_cmds[cnt];
3774 if (sp) {
3775 cmd = sp->cmd;
3776 CMD_RESULT(cmd) = DID_RESET << 16;
3777 CMD_HANDLE(cmd) = COMPLETED_HANDLE;
3778 ha->outstanding_cmds[cnt] = NULL;
3779 list_add_tail(&sp->list, &ha->done_q);
3780 }
3781 }
3782
3783 qla1280_done(ha);
3784
3785 status = qla1280_load_firmware(ha);
3786 if (status)
3787 goto out;
3788
3789 /* Setup adapter based on NVRAM parameters. */
3790 qla1280_nvram_config (ha);
3791
3792 status = qla1280_init_rings(ha);
3793 if (status)
3794 goto out;
3795
3796 /* Issue SCSI reset. */
3797 for (bus = 0; bus < ha->ports; bus++)
3798 qla1280_bus_reset(ha, bus);
3799
3800 ha->flags.abort_isp_active = 0;
3801 out:
3802 if (status) {
3803 printk(KERN_WARNING
3804 "qla1280: ISP error recovery failed, board disabled");
3805 qla1280_reset_adapter(ha);
3806 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
3807 }
3808
3809 LEAVE("qla1280_abort_isp");
3810 return status;
3811}
3812
3813
3814/*
3815 * qla1280_debounce_register
3816 * Debounce register.
3817 *
3818 * Input:
3819 * port = register address.
3820 *
3821 * Returns:
3822 * register value.
3823 */
3824static u16
3825qla1280_debounce_register(volatile u16 __iomem * addr)
3826{
3827 volatile u16 ret;
3828 volatile u16 ret2;
3829
3830 ret = RD_REG_WORD(addr);
3831 ret2 = RD_REG_WORD(addr);
3832
3833 if (ret == ret2)
3834 return ret;
3835
3836 do {
3837 cpu_relax();
3838 ret = RD_REG_WORD(addr);
3839 ret2 = RD_REG_WORD(addr);
3840 } while (ret != ret2);
3841
3842 return ret;
3843}
3844
3845
3846/************************************************************************
3847 * qla1280_check_for_dead_scsi_bus *
3848 * *
3849 * This routine checks for a dead SCSI bus *
3850 ************************************************************************/
3851#define SET_SXP_BANK 0x0100
3852#define SCSI_PHASE_INVALID 0x87FF
3853static int
3854qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
3855{
3856 uint16_t config_reg, scsi_control;
3857 struct device_reg __iomem *reg = ha->iobase;
3858
3859 if (ha->bus_settings[bus].scsi_bus_dead) {
3860 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC);
3861 config_reg = RD_REG_WORD(®->cfg_1);
3862 WRT_REG_WORD(®->cfg_1, SET_SXP_BANK);
3863 scsi_control = RD_REG_WORD(®->scsiControlPins);
3864 WRT_REG_WORD(®->cfg_1, config_reg);
3865 WRT_REG_WORD(®->host_cmd, HC_RELEASE_RISC);
3866
3867 if (scsi_control == SCSI_PHASE_INVALID) {
3868 ha->bus_settings[bus].scsi_bus_dead = 1;
3869 return 1; /* bus is dead */
3870 } else {
3871 ha->bus_settings[bus].scsi_bus_dead = 0;
3872 ha->bus_settings[bus].failed_reset_count = 0;
3873 }
3874 }
3875 return 0; /* bus is not dead */
3876}
3877
3878static void
3879qla1280_get_target_parameters(struct scsi_qla_host *ha,
3880 struct scsi_device *device)
3881{
3882 uint16_t mb[MAILBOX_REGISTER_COUNT];
3883 int bus, target, lun;
3884
3885 bus = device->channel;
3886 target = device->id;
3887 lun = device->lun;
3888
3889
3890 mb[0] = MBC_GET_TARGET_PARAMETERS;
3891 mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
3892 mb[1] <<= 8;
3893 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
3894 &mb[0]);
3895
3896 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
3897
3898 if (mb[3] != 0) {
3899 printk(KERN_CONT " Sync: period %d, offset %d",
3900 (mb[3] & 0xff), (mb[3] >> 8));
3901 if (mb[2] & BIT_13)
3902 printk(KERN_CONT ", Wide");
3903 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
3904 printk(KERN_CONT ", DT");
3905 } else
3906 printk(KERN_CONT " Async");
3907
3908 if (device->simple_tags)
3909 printk(KERN_CONT ", Tagged queuing: depth %d", device->queue_depth);
3910 printk(KERN_CONT "\n");
3911}
3912
3913
3914#if DEBUG_QLA1280
3915static void
3916__qla1280_dump_buffer(char *b, int size)
3917{
3918 int cnt;
3919 u8 c;
3920
3921 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah "
3922 "Bh Ch Dh Eh Fh\n");
3923 printk(KERN_DEBUG "---------------------------------------------"
3924 "------------------\n");
3925
3926 for (cnt = 0; cnt < size;) {
3927 c = *b++;
3928
3929 printk("0x%02x", c);
3930 cnt++;
3931 if (!(cnt % 16))
3932 printk("\n");
3933 else
3934 printk(" ");
3935 }
3936 if (cnt % 16)
3937 printk("\n");
3938}
3939
3940/**************************************************************************
3941 * ql1280_print_scsi_cmd
3942 *
3943 **************************************************************************/
3944static void
3945__qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
3946{
3947 struct scsi_qla_host *ha;
3948 struct Scsi_Host *host = CMD_HOST(cmd);
3949 struct srb *sp;
3950 /* struct scatterlist *sg; */
3951
3952 int i;
3953 ha = (struct scsi_qla_host *)host->hostdata;
3954
3955 sp = scsi_cmd_priv(cmd);
3956 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
3957 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
3958 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
3959 CMD_CDBLEN(cmd));
3960 printk(" CDB = ");
3961 for (i = 0; i < cmd->cmd_len; i++) {
3962 printk("0x%02x ", cmd->cmnd[i]);
3963 }
3964 printk(" seg_cnt =%d\n", scsi_sg_count(cmd));
3965 printk(" request buffer=0x%p, request buffer len=0x%x\n",
3966 scsi_sglist(cmd), scsi_bufflen(cmd));
3967 /* if (cmd->use_sg)
3968 {
3969 sg = (struct scatterlist *) cmd->request_buffer;
3970 printk(" SG buffer: \n");
3971 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
3972 } */
3973 printk(" tag=%d, transfersize=0x%x \n",
3974 scsi_cmd_to_rq(cmd)->tag, cmd->transfersize);
3975 printk(" underflow size = 0x%x, direction=0x%x\n",
3976 cmd->underflow, cmd->sc_data_direction);
3977}
3978
3979/**************************************************************************
3980 * ql1280_dump_device
3981 *
3982 **************************************************************************/
3983static void
3984ql1280_dump_device(struct scsi_qla_host *ha)
3985{
3986
3987 struct scsi_cmnd *cp;
3988 struct srb *sp;
3989 int i;
3990
3991 printk(KERN_DEBUG "Outstanding Commands on controller:\n");
3992
3993 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
3994 if ((sp = ha->outstanding_cmds[i]) == NULL)
3995 continue;
3996 if ((cp = sp->cmd) == NULL)
3997 continue;
3998 qla1280_print_scsi_cmd(1, cp);
3999 }
4000}
4001#endif
4002
4003
4004enum tokens {
4005 TOKEN_NVRAM,
4006 TOKEN_SYNC,
4007 TOKEN_WIDE,
4008 TOKEN_PPR,
4009 TOKEN_VERBOSE,
4010 TOKEN_DEBUG,
4011};
4012
4013struct setup_tokens {
4014 char *token;
4015 int val;
4016};
4017
4018static struct setup_tokens setup_token[] __initdata =
4019{
4020 { "nvram", TOKEN_NVRAM },
4021 { "sync", TOKEN_SYNC },
4022 { "wide", TOKEN_WIDE },
4023 { "ppr", TOKEN_PPR },
4024 { "verbose", TOKEN_VERBOSE },
4025 { "debug", TOKEN_DEBUG },
4026};
4027
4028
4029/**************************************************************************
4030 * qla1280_setup
4031 *
4032 * Handle boot parameters. This really needs to be changed so one
4033 * can specify per adapter parameters.
4034 **************************************************************************/
4035static int __init
4036qla1280_setup(char *s)
4037{
4038 char *cp, *ptr;
4039 unsigned long val;
4040
4041 cp = s;
4042
4043 while (cp && (ptr = strchr(cp, ':'))) {
4044 ptr++;
4045 if (!strcmp(ptr, "yes")) {
4046 val = 0x10000;
4047 ptr += 3;
4048 } else if (!strcmp(ptr, "no")) {
4049 val = 0;
4050 ptr += 2;
4051 } else
4052 val = simple_strtoul(ptr, &ptr, 0);
4053
4054 switch (qla1280_get_token(cp)) {
4055 case TOKEN_NVRAM:
4056 if (!val)
4057 driver_setup.no_nvram = 1;
4058 break;
4059 case TOKEN_SYNC:
4060 if (!val)
4061 driver_setup.no_sync = 1;
4062 else if (val != 0x10000)
4063 driver_setup.sync_mask = val;
4064 break;
4065 case TOKEN_WIDE:
4066 if (!val)
4067 driver_setup.no_wide = 1;
4068 else if (val != 0x10000)
4069 driver_setup.wide_mask = val;
4070 break;
4071 case TOKEN_PPR:
4072 if (!val)
4073 driver_setup.no_ppr = 1;
4074 else if (val != 0x10000)
4075 driver_setup.ppr_mask = val;
4076 break;
4077 case TOKEN_VERBOSE:
4078 qla1280_verbose = val;
4079 break;
4080 default:
4081 printk(KERN_INFO "qla1280: unknown boot option %s\n",
4082 cp);
4083 }
4084
4085 cp = strchr(ptr, ';');
4086 if (cp)
4087 cp++;
4088 else {
4089 break;
4090 }
4091 }
4092 return 1;
4093}
4094
4095
4096static int __init
4097qla1280_get_token(char *str)
4098{
4099 char *sep;
4100 long ret = -1;
4101 int i;
4102
4103 sep = strchr(str, ':');
4104
4105 if (sep) {
4106 for (i = 0; i < ARRAY_SIZE(setup_token); i++) {
4107 if (!strncmp(setup_token[i].token, str, (sep - str))) {
4108 ret = setup_token[i].val;
4109 break;
4110 }
4111 }
4112 }
4113
4114 return ret;
4115}
4116
4117
4118static struct scsi_host_template qla1280_driver_template = {
4119 .module = THIS_MODULE,
4120 .proc_name = "qla1280",
4121 .name = "Qlogic ISP 1280/12160",
4122 .info = qla1280_info,
4123 .slave_configure = qla1280_slave_configure,
4124 .queuecommand = qla1280_queuecommand,
4125 .eh_abort_handler = qla1280_eh_abort,
4126 .eh_device_reset_handler= qla1280_eh_device_reset,
4127 .eh_bus_reset_handler = qla1280_eh_bus_reset,
4128 .eh_host_reset_handler = qla1280_eh_adapter_reset,
4129 .bios_param = qla1280_biosparam,
4130 .can_queue = MAX_OUTSTANDING_COMMANDS,
4131 .this_id = -1,
4132 .sg_tablesize = SG_ALL,
4133 .cmd_size = sizeof(struct srb),
4134};
4135
4136
4137static int
4138qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4139{
4140 int devnum = id->driver_data;
4141 struct qla_boards *bdp = &ql1280_board_tbl[devnum];
4142 struct Scsi_Host *host;
4143 struct scsi_qla_host *ha;
4144 int error = -ENODEV;
4145
4146 /* Bypass all AMI SUBSYS VENDOR IDs */
4147 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
4148 printk(KERN_INFO
4149 "qla1280: Skipping AMI SubSys Vendor ID Chip\n");
4150 goto error;
4151 }
4152
4153 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
4154 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
4155
4156 if (pci_enable_device(pdev)) {
4157 printk(KERN_WARNING
4158 "qla1280: Failed to enabled pci device, aborting.\n");
4159 goto error;
4160 }
4161
4162 pci_set_master(pdev);
4163
4164 error = -ENOMEM;
4165 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
4166 if (!host) {
4167 printk(KERN_WARNING
4168 "qla1280: Failed to register host, aborting.\n");
4169 goto error_disable_device;
4170 }
4171
4172 ha = (struct scsi_qla_host *)host->hostdata;
4173 memset(ha, 0, sizeof(struct scsi_qla_host));
4174
4175 ha->pdev = pdev;
4176 ha->devnum = devnum; /* specifies microcode load address */
4177
4178#ifdef QLA_64BIT_PTR
4179 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) {
4180 if (dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32))) {
4181 printk(KERN_WARNING "scsi(%li): Unable to set a "
4182 "suitable DMA mask - aborting\n", ha->host_no);
4183 error = -ENODEV;
4184 goto error_put_host;
4185 }
4186 } else
4187 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
4188 ha->host_no);
4189#else
4190 if (dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32))) {
4191 printk(KERN_WARNING "scsi(%li): Unable to set a "
4192 "suitable DMA mask - aborting\n", ha->host_no);
4193 error = -ENODEV;
4194 goto error_put_host;
4195 }
4196#endif
4197
4198 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
4199 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
4200 &ha->request_dma, GFP_KERNEL);
4201 if (!ha->request_ring) {
4202 printk(KERN_INFO "qla1280: Failed to get request memory\n");
4203 goto error_put_host;
4204 }
4205
4206 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
4207 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
4208 &ha->response_dma, GFP_KERNEL);
4209 if (!ha->response_ring) {
4210 printk(KERN_INFO "qla1280: Failed to get response memory\n");
4211 goto error_free_request_ring;
4212 }
4213
4214 ha->ports = bdp->numPorts;
4215
4216 ha->host = host;
4217 ha->host_no = host->host_no;
4218
4219 host->irq = pdev->irq;
4220 host->max_channel = bdp->numPorts - 1;
4221 host->max_lun = MAX_LUNS - 1;
4222 host->max_id = MAX_TARGETS;
4223 host->max_sectors = 1024;
4224 host->unique_id = host->host_no;
4225
4226 error = -ENODEV;
4227
4228#if MEMORY_MAPPED_IO
4229 ha->mmpbase = pci_ioremap_bar(ha->pdev, 1);
4230 if (!ha->mmpbase) {
4231 printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
4232 goto error_free_response_ring;
4233 }
4234
4235 host->base = (unsigned long)ha->mmpbase;
4236 ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
4237#else
4238 host->io_port = pci_resource_start(ha->pdev, 0);
4239 if (!request_region(host->io_port, 0xff, "qla1280")) {
4240 printk(KERN_INFO "qla1280: Failed to reserve i/o region "
4241 "0x%04lx-0x%04lx - already in use\n",
4242 host->io_port, host->io_port + 0xff);
4243 goto error_free_response_ring;
4244 }
4245
4246 ha->iobase = (struct device_reg *)host->io_port;
4247#endif
4248
4249 INIT_LIST_HEAD(&ha->done_q);
4250
4251 /* Disable ISP interrupts. */
4252 qla1280_disable_intrs(ha);
4253
4254 if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED,
4255 "qla1280", ha)) {
4256 printk("qla1280 : Failed to reserve interrupt %d already "
4257 "in use\n", pdev->irq);
4258 goto error_release_region;
4259 }
4260
4261 /* load the F/W, read paramaters, and init the H/W */
4262 if (qla1280_initialize_adapter(ha)) {
4263 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
4264 goto error_free_irq;
4265 }
4266
4267 /* set our host ID (need to do something about our two IDs) */
4268 host->this_id = ha->bus_settings[0].id;
4269
4270 pci_set_drvdata(pdev, host);
4271
4272 error = scsi_add_host(host, &pdev->dev);
4273 if (error)
4274 goto error_disable_adapter;
4275 scsi_scan_host(host);
4276
4277 return 0;
4278
4279 error_disable_adapter:
4280 qla1280_disable_intrs(ha);
4281 error_free_irq:
4282 free_irq(pdev->irq, ha);
4283 error_release_region:
4284#if MEMORY_MAPPED_IO
4285 iounmap(ha->mmpbase);
4286#else
4287 release_region(host->io_port, 0xff);
4288#endif
4289 error_free_response_ring:
4290 dma_free_coherent(&ha->pdev->dev,
4291 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
4292 ha->response_ring, ha->response_dma);
4293 error_free_request_ring:
4294 dma_free_coherent(&ha->pdev->dev,
4295 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
4296 ha->request_ring, ha->request_dma);
4297 error_put_host:
4298 scsi_host_put(host);
4299 error_disable_device:
4300 pci_disable_device(pdev);
4301 error:
4302 return error;
4303}
4304
4305
4306static void
4307qla1280_remove_one(struct pci_dev *pdev)
4308{
4309 struct Scsi_Host *host = pci_get_drvdata(pdev);
4310 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
4311
4312 scsi_remove_host(host);
4313
4314 qla1280_disable_intrs(ha);
4315
4316 free_irq(pdev->irq, ha);
4317
4318#if MEMORY_MAPPED_IO
4319 iounmap(ha->mmpbase);
4320#else
4321 release_region(host->io_port, 0xff);
4322#endif
4323
4324 dma_free_coherent(&ha->pdev->dev,
4325 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4326 ha->request_ring, ha->request_dma);
4327 dma_free_coherent(&ha->pdev->dev,
4328 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4329 ha->response_ring, ha->response_dma);
4330
4331 pci_disable_device(pdev);
4332
4333 scsi_host_put(host);
4334}
4335
4336static struct pci_driver qla1280_pci_driver = {
4337 .name = "qla1280",
4338 .id_table = qla1280_pci_tbl,
4339 .probe = qla1280_probe_one,
4340 .remove = qla1280_remove_one,
4341};
4342
4343static int __init
4344qla1280_init(void)
4345{
4346#ifdef MODULE
4347 /*
4348 * If we are called as a module, the qla1280 pointer may not be null
4349 * and it would point to our bootup string, just like on the lilo
4350 * command line. IF not NULL, then process this config string with
4351 * qla1280_setup
4352 *
4353 * Boot time Options
4354 * To add options at boot time add a line to your lilo.conf file like:
4355 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
4356 * which will result in the first four devices on the first two
4357 * controllers being set to a tagged queue depth of 32.
4358 */
4359 if (qla1280)
4360 qla1280_setup(qla1280);
4361#endif
4362
4363 return pci_register_driver(&qla1280_pci_driver);
4364}
4365
4366static void __exit
4367qla1280_exit(void)
4368{
4369 int i;
4370
4371 pci_unregister_driver(&qla1280_pci_driver);
4372 /* release any allocated firmware images */
4373 for (i = 0; i < QL_NUM_FW_IMAGES; i++) {
4374 release_firmware(qla1280_fw_tbl[i].fw);
4375 qla1280_fw_tbl[i].fw = NULL;
4376 }
4377}
4378
4379module_init(qla1280_init);
4380module_exit(qla1280_exit);
4381
4382MODULE_AUTHOR("Qlogic & Jes Sorensen");
4383MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
4384MODULE_LICENSE("GPL");
4385MODULE_FIRMWARE("qlogic/1040.bin");
4386MODULE_FIRMWARE("qlogic/1280.bin");
4387MODULE_FIRMWARE("qlogic/12160.bin");
4388MODULE_VERSION(QLA1280_VERSION);