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