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Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6-block.git] / drivers / scsi / qla1280.c
CommitLineData
1da177e4
LT		 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******************************************************************************/
421e33d0 20#define QLA1280_VERSION "3.27.1"
1da177e4
LT		 21/*****************************************************************************
22 Revision History:
421e33d0
MR		 23 Rev 3.27.1, February 8, 2010, Michael Reed
24 - Retain firmware image for error recovery.
413e6e18
MR		 25 Rev 3.27, February 10, 2009, Michael Reed
26 - General code cleanup.
27 - Improve error recovery.
2dbb04c6
JS		 28 Rev 3.26, January 16, 2006 Jes Sorensen
29 - Ditch all < 2.6 support
1da177e4
LT		 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.
25985edc 81 This just happened to work out on ia64 but not elsewhere.
1da177e4
LT		 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
c3af1715 136 sent to the card - this command pauses the firmware!!!
1da177e4
LT		 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
1d6f359a 200 - Don't use IRQF_DISABLED, it's use is deprecated for this kinda driver
1da177e4
LT		 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
1da177e4
LT		 339#include <linux/module.h>
340
1da177e4
LT		 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>
1da177e4
LT		 348#include <linux/pci.h>
349#include <linux/proc_fs.h>
350#include <linux/stat.h>
1da177e4
LT		 351#include <linux/pci_ids.h>
352#include <linux/interrupt.h>
353#include <linux/init.h>
910638ae 354#include <linux/dma-mapping.h>
1bfa11db 355#include <linux/firmware.h>
1da177e4
LT		 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>
1da177e4 362
1da177e4
LT		 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>
1da177e4
LT		 368
369#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
370#include <asm/sn/io.h>
371#endif
372
1da177e4
LT		 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
1da177e4 382#define MEMORY_MAPPED_IO 1
1da177e4 383
1da177e4 384#include "qla1280.h"
1da177e4 385
ac4b1657 386#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
1da177e4
LT		 387#define QLA_64BIT_PTR 1
388#endif
389
1da177e4
LT		 390#define NVRAM_DELAY() udelay(500) /* 2 microseconds */
391
1da177e4
LT		 392#if defined(__ia64__) && !defined(ia64_platform_is)
393#define ia64_platform_is(foo) (!strcmp(x, platform_name))
394#endif
395
396
397#define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020)
398#define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \
399 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240)
400#define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \
401 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160)
402
403
404static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *);
405static void qla1280_remove_one(struct pci_dev *);
406
407/*
408 * QLogic Driver Support Function Prototypes.
409 */
410static void qla1280_done(struct scsi_qla_host *);
1da177e4
LT		 411static int qla1280_get_token(char *);
412static int qla1280_setup(char *s) __init;
413
414/*
415 * QLogic ISP1280 Hardware Support Function Prototypes.
416 */
417static int qla1280_load_firmware(struct scsi_qla_host *);
418static int qla1280_init_rings(struct scsi_qla_host *);
419static int qla1280_nvram_config(struct scsi_qla_host *);
420static int qla1280_mailbox_command(struct scsi_qla_host *,
421 uint8_t, uint16_t *);
422static int qla1280_bus_reset(struct scsi_qla_host *, int);
423static int qla1280_device_reset(struct scsi_qla_host *, int, int);
1da177e4
LT		 424static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int);
425static int qla1280_abort_isp(struct scsi_qla_host *);
426#ifdef QLA_64BIT_PTR
427static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *);
428#else
429static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *);
430#endif
431static void qla1280_nv_write(struct scsi_qla_host *, uint16_t);
432static void qla1280_poll(struct scsi_qla_host *);
433static void qla1280_reset_adapter(struct scsi_qla_host *);
434static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8);
435static void qla1280_isp_cmd(struct scsi_qla_host *);
436static void qla1280_isr(struct scsi_qla_host *, struct list_head *);
437static void qla1280_rst_aen(struct scsi_qla_host *);
438static void qla1280_status_entry(struct scsi_qla_host *, struct response *,
439 struct list_head *);
440static void qla1280_error_entry(struct scsi_qla_host *, struct response *,
441 struct list_head *);
442static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t);
443static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t);
444static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *);
445static request_t *qla1280_req_pkt(struct scsi_qla_host *);
446static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *,
447 unsigned int);
448static void qla1280_get_target_parameters(struct scsi_qla_host *,
449 struct scsi_device *);
450static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int);
451
452
453static struct qla_driver_setup driver_setup;
454
455/*
456 * convert scsi data direction to request_t control flags
457 */
458static inline uint16_t
459qla1280_data_direction(struct scsi_cmnd *cmnd)
460{
461 switch(cmnd->sc_data_direction) {
462 case DMA_FROM_DEVICE:
463 return BIT_5;
464 case DMA_TO_DEVICE:
465 return BIT_6;
466 case DMA_BIDIRECTIONAL:
467 return BIT_5 | BIT_6;
468 /*
469 * We could BUG() on default here if one of the four cases aren't
470 * met, but then again if we receive something like that from the
471 * SCSI layer we have more serious problems. This shuts up GCC.
472 */
473 case DMA_NONE:
474 default:
475 return 0;
476 }
477}
478
479#if DEBUG_QLA1280
480static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd);
481static void __qla1280_dump_buffer(char *, int);
482#endif
483
484
485/*
486 * insmod needs to find the variable and make it point to something
487 */
488#ifdef MODULE
489static char *qla1280;
490
491/* insmod qla1280 options=verbose" */
492module_param(qla1280, charp, 0);
493#else
494__setup("qla1280=", qla1280_setup);
495#endif
496
497
498/*
499 * We use the scsi_pointer structure that's included with each scsi_command
500 * to overlay our struct srb over it. qla1280_init() checks that a srb is not
501 * bigger than a scsi_pointer.
502 */
503
504#define CMD_SP(Cmnd) &Cmnd->SCp
505#define CMD_CDBLEN(Cmnd) Cmnd->cmd_len
506#define CMD_CDBP(Cmnd) Cmnd->cmnd
507#define CMD_SNSP(Cmnd) Cmnd->sense_buffer
b80ca4f7 508#define CMD_SNSLEN(Cmnd) SCSI_SENSE_BUFFERSIZE
1da177e4
LT		 509#define CMD_RESULT(Cmnd) Cmnd->result
510#define CMD_HANDLE(Cmnd) Cmnd->host_scribble
1da177e4 511#define CMD_REQUEST(Cmnd) Cmnd->request->cmd
1da177e4
LT		 512
513#define CMD_HOST(Cmnd) Cmnd->device->host
514#define SCSI_BUS_32(Cmnd) Cmnd->device->channel
515#define SCSI_TCN_32(Cmnd) Cmnd->device->id
516#define SCSI_LUN_32(Cmnd) Cmnd->device->lun
517
518
519/*****************************************/
520/* ISP Boards supported by this driver */
521/*****************************************/
522
523struct qla_boards {
421e33d0 524 char *name; /* Board ID String */
1da177e4 525 int numPorts; /* Number of SCSI ports */
421e33d0 526 int fw_index; /* index into qla1280_fw_tbl for firmware */
1da177e4
LT		 527};
528
529/* NOTE: the last argument in each entry is used to index ql1280_board_tbl */
530static struct pci_device_id qla1280_pci_tbl[] = {
531 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160,
532 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1da177e4
LT		 533 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
534 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
1da177e4
LT		 535 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080,
536 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
537 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240,
538 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
539 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280,
540 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
541 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160,
542 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
543 {0,}
544};
545MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl);
546
421e33d0
MR		 547DEFINE_MUTEX(qla1280_firmware_mutex);
548
549struct qla_fw {
550 char *fwname;
551 const struct firmware *fw;
552};
553
554#define QL_NUM_FW_IMAGES 3
555
556struct qla_fw qla1280_fw_tbl[QL_NUM_FW_IMAGES] = {
557 {"qlogic/1040.bin", NULL}, /* image 0 */
558 {"qlogic/1280.bin", NULL}, /* image 1 */
559 {"qlogic/12160.bin", NULL}, /* image 2 */
560};
561
562/* NOTE: Order of boards in this table must match order in qla1280_pci_tbl */
1da177e4 563static struct qla_boards ql1280_board_tbl[] = {
421e33d0
MR		 564 {.name = "QLA12160", .numPorts = 2, .fw_index = 2},
565 {.name = "QLA1040" , .numPorts = 1, .fw_index = 0},
566 {.name = "QLA1080" , .numPorts = 1, .fw_index = 1},
567 {.name = "QLA1240" , .numPorts = 2, .fw_index = 1},
568 {.name = "QLA1280" , .numPorts = 2, .fw_index = 1},
569 {.name = "QLA10160", .numPorts = 1, .fw_index = 2},
570 {.name = " ", .numPorts = 0, .fw_index = -1},
1da177e4
LT		 571};
572
573static int qla1280_verbose = 1;
574
575#if DEBUG_QLA1280
576static int ql_debug_level = 1;
577#define dprintk(level, format, a...) \
578 do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0)
579#define qla1280_dump_buffer(level, buf, size) \
580 if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size)
581#define qla1280_print_scsi_cmd(level, cmd) \
582 if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd)
583#else
584#define ql_debug_level 0
585#define dprintk(level, format, a...) do{}while(0)
586#define qla1280_dump_buffer(a, b, c) do{}while(0)
587#define qla1280_print_scsi_cmd(a, b) do{}while(0)
588#endif
589
590#define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x);
591#define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x);
592#define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x);
593#define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x);
594
595
596static int qla1280_read_nvram(struct scsi_qla_host *ha)
597{
598 uint16_t *wptr;
599 uint8_t chksum;
600 int cnt, i;
601 struct nvram *nv;
602
603 ENTER("qla1280_read_nvram");
604
605 if (driver_setup.no_nvram)
606 return 1;
607
608 printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no);
609
610 wptr = (uint16_t *)&ha->nvram;
611 nv = &ha->nvram;
612 chksum = 0;
613 for (cnt = 0; cnt < 3; cnt++) {
614 *wptr = qla1280_get_nvram_word(ha, cnt);
615 chksum += *wptr & 0xff;
616 chksum += (*wptr >> 8) & 0xff;
617 wptr++;
618 }
619
620 if (nv->id0 != 'I' || nv->id1 != 'S' ||
621 nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) {
622 dprintk(2, "Invalid nvram ID or version!\n");
623 chksum = 1;
624 } else {
625 for (; cnt < sizeof(struct nvram); cnt++) {
626 *wptr = qla1280_get_nvram_word(ha, cnt);
627 chksum += *wptr & 0xff;
628 chksum += (*wptr >> 8) & 0xff;
629 wptr++;
630 }
631 }
632
633 dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x"
634 " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3,
635 nv->version);
636
637
638 if (chksum) {
639 if (!driver_setup.no_nvram)
640 printk(KERN_WARNING "scsi(%ld): Unable to identify or "
641 "validate NVRAM checksum, using default "
642 "settings\n", ha->host_no);
643 ha->nvram_valid = 0;
644 } else
645 ha->nvram_valid = 1;
646
647 /* The firmware interface is, um, interesting, in that the
648 * actual firmware image on the chip is little endian, thus,
649 * the process of taking that image to the CPU would end up
c3af1715 650 * little endian. However, the firmware interface requires it
1da177e4
LT		 651 * to be read a word (two bytes) at a time.
652 *
653 * The net result of this would be that the word (and
654 * doubleword) quantites in the firmware would be correct, but
655 * the bytes would be pairwise reversed. Since most of the
656 * firmware quantites are, in fact, bytes, we do an extra
657 * le16_to_cpu() in the firmware read routine.
658 *
659 * The upshot of all this is that the bytes in the firmware
660 * are in the correct places, but the 16 and 32 bit quantites
661 * are still in little endian format. We fix that up below by
662 * doing extra reverses on them */
663 nv->isp_parameter = cpu_to_le16(nv->isp_parameter);
664 nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w);
665 for(i = 0; i < MAX_BUSES; i++) {
666 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout);
667 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth);
668 }
669 dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n");
670 LEAVE("qla1280_read_nvram");
671
672 return chksum;
673}
674
675/**************************************************************************
676 * qla1280_info
677 * Return a string describing the driver.
678 **************************************************************************/
679static const char *
680qla1280_info(struct Scsi_Host *host)
681{
682 static char qla1280_scsi_name_buffer[125];
683 char *bp;
684 struct scsi_qla_host *ha;
685 struct qla_boards *bdp;
686
687 bp = &qla1280_scsi_name_buffer[0];
688 ha = (struct scsi_qla_host *)host->hostdata;
689 bdp = &ql1280_board_tbl[ha->devnum];
690 memset(bp, 0, sizeof(qla1280_scsi_name_buffer));
691
692 sprintf (bp,
693 "QLogic %s PCI to SCSI Host Adapter\n"
694 " Firmware version: %2d.%02d.%02d, Driver version %s",
1bfa11db 695 &bdp->name[0], ha->fwver1, ha->fwver2, ha->fwver3,
1da177e4
LT		 696 QLA1280_VERSION);
697 return bp;
698}
699
700/**************************************************************************
fd65e5e9 701 * qla1280_queuecommand
1da177e4
LT		 702 * Queue a command to the controller.
703 *
704 * Note:
705 * The mid-level driver tries to ensures that queuecommand never gets invoked
706 * concurrently with itself or the interrupt handler (although the
707 * interrupt handler may call this routine as part of request-completion
708 * handling). Unfortunely, it sometimes calls the scheduler in interrupt
709 * context which is a big NO! NO!.
710 **************************************************************************/
711static int
f281233d 712qla1280_queuecommand_lck(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
1da177e4
LT		 713{
714 struct Scsi_Host *host = cmd->device->host;
715 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
fd65e5e9 716 struct srb *sp = (struct srb *)CMD_SP(cmd);
1da177e4
LT		 717 int status;
718
719 cmd->scsi_done = fn;
720 sp->cmd = cmd;
721 sp->flags = 0;
413e6e18
MR		 722 sp->wait = NULL;
723 CMD_HANDLE(cmd) = (unsigned char *)NULL;
1da177e4
LT		 724
725 qla1280_print_scsi_cmd(5, cmd);
726
727#ifdef QLA_64BIT_PTR
728 /*
729 * Using 64 bit commands if the PCI bridge doesn't support it is a
730 * bit wasteful, however this should really only happen if one's
731 * PCI controller is completely broken, like the BCM1250. For
732 * sane hardware this is not an issue.
733 */
734 status = qla1280_64bit_start_scsi(ha, sp);
735#else
736 status = qla1280_32bit_start_scsi(ha, sp);
737#endif
738 return status;
739}
740
f281233d
JG		 741static DEF_SCSI_QCMD(qla1280_queuecommand)
742
1da177e4
LT		 743enum action {
744 ABORT_COMMAND,
1da177e4
LT		 745 DEVICE_RESET,
746 BUS_RESET,
747 ADAPTER_RESET,
1da177e4
LT		 748};
749
1da177e4 750
9c6c273a 751static void qla1280_mailbox_timeout(struct timer_list *t)
1da177e4 752{
9c6c273a 753 struct scsi_qla_host *ha = from_timer(ha, t, mailbox_timer);
1da177e4
LT		 754 struct device_reg __iomem *reg;
755 reg = ha->iobase;
756
757 ha->mailbox_out[0] = RD_REG_WORD(&reg->mailbox0);
758 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
759 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
760 RD_REG_WORD(&reg->ictrl), RD_REG_WORD(&reg->istatus));
761 complete(ha->mailbox_wait);
762}
763
413e6e18
MR		 764static int
765_qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp,
766 struct completion *wait)
767{
768 int status = FAILED;
769 struct scsi_cmnd *cmd = sp->cmd;
770
771 spin_unlock_irq(ha->host->host_lock);
772 wait_for_completion_timeout(wait, 4*HZ);
773 spin_lock_irq(ha->host->host_lock);
774 sp->wait = NULL;
775 if(CMD_HANDLE(cmd) == COMPLETED_HANDLE) {
776 status = SUCCESS;
777 (*cmd->scsi_done)(cmd);
778 }
779 return status;
780}
781
782static int
783qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp)
784{
785 DECLARE_COMPLETION_ONSTACK(wait);
786
787 sp->wait = &wait;
788 return _qla1280_wait_for_single_command(ha, sp, &wait);
789}
790
791static int
792qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target)
793{
794 int cnt;
795 int status;
796 struct srb *sp;
797 struct scsi_cmnd *cmd;
798
799 status = SUCCESS;
800
801 /*
802 * Wait for all commands with the designated bus/target
803 * to be completed by the firmware
804 */
805 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
806 sp = ha->outstanding_cmds[cnt];
807 if (sp) {
808 cmd = sp->cmd;
809
810 if (bus >= 0 && SCSI_BUS_32(cmd) != bus)
811 continue;
812 if (target >= 0 && SCSI_TCN_32(cmd) != target)
813 continue;
814
815 status = qla1280_wait_for_single_command(ha, sp);
816 if (status == FAILED)
817 break;
818 }
819 }
820 return status;
821}
822
1da177e4 823/**************************************************************************
fd65e5e9 824 * qla1280_error_action
1da177e4
LT		 825 * The function will attempt to perform a specified error action and
826 * wait for the results (or time out).
827 *
828 * Input:
829 * cmd = Linux SCSI command packet of the command that cause the
830 * bus reset.
831 * action = error action to take (see action_t)
832 *
833 * Returns:
834 * SUCCESS or FAILED
835 *
1da177e4
LT		 836 **************************************************************************/
837static int
838qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
839{
840 struct scsi_qla_host *ha;
841 int bus, target, lun;
842 struct srb *sp;
413e6e18
MR		 843 int i, found;
844 int result=FAILED;
845 int wait_for_bus=-1;
846 int wait_for_target = -1;
6e9a4738 847 DECLARE_COMPLETION_ONSTACK(wait);
1da177e4 848
fd65e5e9
MR		 849 ENTER("qla1280_error_action");
850
1da177e4 851 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
413e6e18
MR		 852 sp = (struct srb *)CMD_SP(cmd);
853 bus = SCSI_BUS_32(cmd);
854 target = SCSI_TCN_32(cmd);
855 lun = SCSI_LUN_32(cmd);
1da177e4
LT		 856
857 dprintk(4, "error_action %i, istatus 0x%04x\n", action,
858 RD_REG_WORD(&ha->iobase->istatus));
859
860 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
861 RD_REG_WORD(&ha->iobase->host_cmd),
862 RD_REG_WORD(&ha->iobase->ictrl), jiffies);
863
1da177e4
LT		 864 if (qla1280_verbose)
865 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
866 "Handle=0x%p, action=0x%x\n",
867 ha->host_no, cmd, CMD_HANDLE(cmd), action);
868
1da177e4 869 /*
413e6e18
MR		 870 * Check to see if we have the command in the outstanding_cmds[]
871 * array. If not then it must have completed before this error
872 * action was initiated. If the error_action isn't ABORT_COMMAND
873 * then the driver must proceed with the requested action.
1da177e4 874 */
413e6e18
MR		 875 found = -1;
876 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
877 if (sp == ha->outstanding_cmds[i]) {
878 found = i;
879 sp->wait = &wait; /* we'll wait for it to complete */
880 break;
1da177e4 881 }
1da177e4
LT		 882 }
883
413e6e18
MR		 884 if (found < 0) { /* driver doesn't have command */
885 result = SUCCESS;
886 if (qla1280_verbose) {
887 printk(KERN_INFO
888 "scsi(%ld:%d:%d:%d): specified command has "
889 "already completed.\n", ha->host_no, bus,
890 target, lun);
891 }
892 }
1da177e4 893
1da177e4 894 switch (action) {
1da177e4 895
413e6e18
MR		 896 case ABORT_COMMAND:
897 dprintk(1, "qla1280: RISC aborting command\n");
898 /*
899 * The abort might fail due to race when the host_lock
900 * is released to issue the abort. As such, we
901 * don't bother to check the return status.
902 */
903 if (found >= 0)
904 qla1280_abort_command(ha, sp, found);
1da177e4
LT		 905 break;
906
1da177e4
LT		 907 case DEVICE_RESET:
908 if (qla1280_verbose)
909 printk(KERN_INFO
910 "scsi(%ld:%d:%d:%d): Queueing device reset "
911 "command.\n", ha->host_no, bus, target, lun);
413e6e18
MR		 912 if (qla1280_device_reset(ha, bus, target) == 0) {
913 /* issued device reset, set wait conditions */
914 wait_for_bus = bus;
915 wait_for_target = target;
916 }
1da177e4
LT		 917 break;
918
919 case BUS_RESET:
920 if (qla1280_verbose)
cd00b7f5
JS		 921 printk(KERN_INFO "qla1280(%ld:%d): Issued bus "
922 "reset.\n", ha->host_no, bus);
413e6e18
MR		 923 if (qla1280_bus_reset(ha, bus) == 0) {
924 /* issued bus reset, set wait conditions */
925 wait_for_bus = bus;
926 }
1da177e4
LT		 927 break;
928
929 case ADAPTER_RESET:
930 default:
931 if (qla1280_verbose) {
932 printk(KERN_INFO
933 "scsi(%ld): Issued ADAPTER RESET\n",
934 ha->host_no);
935 printk(KERN_INFO "scsi(%ld): I/O processing will "
936 "continue automatically\n", ha->host_no);
937 }
938 ha->flags.reset_active = 1;
413e6e18
MR		 939
940 if (qla1280_abort_isp(ha) != 0) { /* it's dead */
941 result = FAILED;
942 }
1da177e4
LT		 943
944 ha->flags.reset_active = 0;
945 }
946
413e6e18
MR		 947 /*
948 * At this point, the host_lock has been released and retaken
949 * by the issuance of the mailbox command.
950 * Wait for the command passed in by the mid-layer if it
951 * was found by the driver. It might have been returned
952 * between eh recovery steps, hence the check of the "found"
953 * variable.
954 */
1da177e4 955
413e6e18
MR		 956 if (found >= 0)
957 result = _qla1280_wait_for_single_command(ha, sp, &wait);
1da177e4 958
413e6e18
MR		 959 if (action == ABORT_COMMAND && result != SUCCESS) {
960 printk(KERN_WARNING
961 "scsi(%li:%i:%i:%i): "
962 "Unable to abort command!\n",
963 ha->host_no, bus, target, lun);
964 }
1da177e4 965
413e6e18
MR		 966 /*
967 * If the command passed in by the mid-layer has been
968 * returned by the board, then wait for any additional
969 * commands which are supposed to complete based upon
970 * the error action.
971 *
972 * All commands are unconditionally returned during a
973 * call to qla1280_abort_isp(), ADAPTER_RESET. No need
974 * to wait for them.
975 */
976 if (result == SUCCESS && wait_for_bus >= 0) {
977 result = qla1280_wait_for_pending_commands(ha,
978 wait_for_bus, wait_for_target);
1da177e4
LT		 979 }
980
1da177e4
LT		 981 dprintk(1, "RESET returning %d\n", result);
982
983 LEAVE("qla1280_error_action");
984 return result;
985}
986
987/**************************************************************************
988 * qla1280_abort
989 * Abort the specified SCSI command(s).
990 **************************************************************************/
991static int
992qla1280_eh_abort(struct scsi_cmnd * cmd)
993{
8fa728a2
JG		 994 int rc;
995
996 spin_lock_irq(cmd->device->host->host_lock);
997 rc = qla1280_error_action(cmd, ABORT_COMMAND);
998 spin_unlock_irq(cmd->device->host->host_lock);
999
1000 return rc;
1da177e4
LT		 1001}
1002
1003/**************************************************************************
1004 * qla1280_device_reset
1005 * Reset the specified SCSI device
1006 **************************************************************************/
1007static int
1008qla1280_eh_device_reset(struct scsi_cmnd *cmd)
1009{
94d0e7b8
JG		 1010 int rc;
1011
1012 spin_lock_irq(cmd->device->host->host_lock);
1013 rc = qla1280_error_action(cmd, DEVICE_RESET);
1014 spin_unlock_irq(cmd->device->host->host_lock);
1015
1016 return rc;
1da177e4
LT		 1017}
1018
1019/**************************************************************************
1020 * qla1280_bus_reset
1021 * Reset the specified bus.
1022 **************************************************************************/
1023static int
1024qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
1025{
68b3aa7c
JG		 1026 int rc;
1027
1028 spin_lock_irq(cmd->device->host->host_lock);
1029 rc = qla1280_error_action(cmd, BUS_RESET);
1030 spin_unlock_irq(cmd->device->host->host_lock);
1031
1032 return rc;
1da177e4
LT		 1033}
1034
1035/**************************************************************************
1036 * qla1280_adapter_reset
1037 * Reset the specified adapter (both channels)
1038 **************************************************************************/
1039static int
1040qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
1041{
df0ae249
JG		 1042 int rc;
1043
1044 spin_lock_irq(cmd->device->host->host_lock);
1045 rc = qla1280_error_action(cmd, ADAPTER_RESET);
1046 spin_unlock_irq(cmd->device->host->host_lock);
1047
1048 return rc;
1da177e4
LT		 1049}
1050
1051static int
1052qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1053 sector_t capacity, int geom[])
1054{
1055 int heads, sectors, cylinders;
1056
1057 heads = 64;
1058 sectors = 32;
1059 cylinders = (unsigned long)capacity / (heads * sectors);
1060 if (cylinders > 1024) {
1061 heads = 255;
1062 sectors = 63;
1063 cylinders = (unsigned long)capacity / (heads * sectors);
1064 /* if (cylinders > 1023)
1065 cylinders = 1023; */
1066 }
1067
1068 geom[0] = heads;
1069 geom[1] = sectors;
1070 geom[2] = cylinders;
1071
1072 return 0;
1073}
1074
8af50dcd
CH		 1075
1076/* disable risc and host interrupts */
1077static inline void
1078qla1280_disable_intrs(struct scsi_qla_host *ha)
1079{
1080 WRT_REG_WORD(&ha->iobase->ictrl, 0);
1081 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1082}
1083
1084/* enable risc and host interrupts */
1085static inline void
1086qla1280_enable_intrs(struct scsi_qla_host *ha)
1087{
1088 WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC));
1089 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1090}
1da177e4
LT		 1091
1092/**************************************************************************
1093 * qla1280_intr_handler
1094 * Handles the H/W interrupt
1095 **************************************************************************/
1096static irqreturn_t
7d12e780 1097qla1280_intr_handler(int irq, void *dev_id)
1da177e4
LT		 1098{
1099 struct scsi_qla_host *ha;
1100 struct device_reg __iomem *reg;
1101 u16 data;
1102 int handled = 0;
1103
1104 ENTER_INTR ("qla1280_intr_handler");
1105 ha = (struct scsi_qla_host *)dev_id;
1106
2dbb04c6 1107 spin_lock(ha->host->host_lock);
1da177e4
LT		 1108
1109 ha->isr_count++;
1110 reg = ha->iobase;
1111
8af50dcd 1112 qla1280_disable_intrs(ha);
1da177e4
LT		 1113
1114 data = qla1280_debounce_register(&reg->istatus);
1115 /* Check for pending interrupts. */
1116 if (data & RISC_INT) {
1117 qla1280_isr(ha, &ha->done_q);
1118 handled = 1;
1119 }
1120 if (!list_empty(&ha->done_q))
1121 qla1280_done(ha);
1122
2dbb04c6 1123 spin_unlock(ha->host->host_lock);
1da177e4 1124
8af50dcd 1125 qla1280_enable_intrs(ha);
1da177e4
LT		 1126
1127 LEAVE_INTR("qla1280_intr_handler");
1128 return IRQ_RETVAL(handled);
1129}
1130
1131
1132static int
1133qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
1134{
1135 uint8_t mr;
1136 uint16_t mb[MAILBOX_REGISTER_COUNT];
1137 struct nvram *nv;
7a34766f 1138 int status, lun;
1da177e4
LT		 1139
1140 nv = &ha->nvram;
1141
1142 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
1143
1144 /* Set Target Parameters. */
1145 mb[0] = MBC_SET_TARGET_PARAMETERS;
7a34766f
CH		 1146 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1147 mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8;
1148 mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9;
1149 mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10;
1150 mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11;
1151 mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12;
1152 mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13;
1153 mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14;
1154 mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15;
1da177e4
LT		 1155
1156 if (IS_ISP1x160(ha)) {
1157 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
7a34766f 1158 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8);
1da177e4
LT		 1159 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
1160 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
1161 mr |= BIT_6;
1162 } else {
7a34766f 1163 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8);
1da177e4 1164 }
7a34766f
CH		 1165 mb[3] |= nv->bus[bus].target[target].sync_period;
1166
1167 status = qla1280_mailbox_command(ha, mr, mb);
1da177e4 1168
7a34766f
CH		 1169 /* Set Device Queue Parameters. */
1170 for (lun = 0; lun < MAX_LUNS; lun++) {
1171 mb[0] = MBC_SET_DEVICE_QUEUE;
1172 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1173 mb[1] |= lun;
1174 mb[2] = nv->bus[bus].max_queue_depth;
1175 mb[3] = nv->bus[bus].target[target].execution_throttle;
1176 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1177 }
1da177e4
LT		 1178
1179 if (status)
1180 printk(KERN_WARNING "scsi(%ld:%i:%i): "
1181 "qla1280_set_target_parameters() failed\n",
1182 ha->host_no, bus, target);
1183 return status;
1184}
1185
1186
1187/**************************************************************************
1188 * qla1280_slave_configure
1189 *
1190 * Description:
1191 * Determines the queue depth for a given device. There are two ways
1192 * a queue depth can be obtained for a tagged queueing device. One
1193 * way is the default queue depth which is determined by whether
1194 * If it is defined, then it is used
1195 * as the default queue depth. Otherwise, we use either 4 or 8 as the
1196 * default queue depth (dependent on the number of hardware SCBs).
1197 **************************************************************************/
1198static int
1199qla1280_slave_configure(struct scsi_device *device)
1200{
1201 struct scsi_qla_host *ha;
1202 int default_depth = 3;
1203 int bus = device->channel;
1204 int target = device->id;
1205 int status = 0;
1206 struct nvram *nv;
1207 unsigned long flags;
1208
1209 ha = (struct scsi_qla_host *)device->host->hostdata;
1210 nv = &ha->nvram;
1211
1212 if (qla1280_check_for_dead_scsi_bus(ha, bus))
1213 return 1;
1214
1215 if (device->tagged_supported &&
1216 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
db5ed4df 1217 scsi_change_queue_depth(device, ha->bus_settings[bus].hiwat);
1da177e4 1218 } else {
db5ed4df 1219 scsi_change_queue_depth(device, default_depth);
1da177e4
LT		 1220 }
1221
7a34766f
CH		 1222 nv->bus[bus].target[target].parameter.enable_sync = device->sdtr;
1223 nv->bus[bus].target[target].parameter.enable_wide = device->wdtr;
1da177e4 1224 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
1da177e4
LT		 1225
1226 if (driver_setup.no_sync ||
1227 (driver_setup.sync_mask &&
1228 (~driver_setup.sync_mask & (1 << target))))
7a34766f 1229 nv->bus[bus].target[target].parameter.enable_sync = 0;
1da177e4
LT		 1230 if (driver_setup.no_wide ||
1231 (driver_setup.wide_mask &&
1232 (~driver_setup.wide_mask & (1 << target))))
7a34766f 1233 nv->bus[bus].target[target].parameter.enable_wide = 0;
1da177e4
LT		 1234 if (IS_ISP1x160(ha)) {
1235 if (driver_setup.no_ppr ||
1236 (driver_setup.ppr_mask &&
1237 (~driver_setup.ppr_mask & (1 << target))))
1238 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
1239 }
1240
2dbb04c6 1241 spin_lock_irqsave(ha->host->host_lock, flags);
7a34766f 1242 if (nv->bus[bus].target[target].parameter.enable_sync)
1da177e4
LT		 1243 status = qla1280_set_target_parameters(ha, bus, target);
1244 qla1280_get_target_parameters(ha, device);
2dbb04c6 1245 spin_unlock_irqrestore(ha->host->host_lock, flags);
1da177e4
LT		 1246 return status;
1247}
1248
1da177e4
LT		 1249
1250/*
1251 * qla1280_done
1252 * Process completed commands.
1253 *
1254 * Input:
1255 * ha = adapter block pointer.
1da177e4
LT		 1256 */
1257static void
1258qla1280_done(struct scsi_qla_host *ha)
1259{
1260 struct srb *sp;
1261 struct list_head *done_q;
1262 int bus, target, lun;
1263 struct scsi_cmnd *cmd;
1264
1265 ENTER("qla1280_done");
1266
1267 done_q = &ha->done_q;
1268
1269 while (!list_empty(done_q)) {
1270 sp = list_entry(done_q->next, struct srb, list);
1271
1272 list_del(&sp->list);
1273
1274 cmd = sp->cmd;
1275 bus = SCSI_BUS_32(cmd);
1276 target = SCSI_TCN_32(cmd);
1277 lun = SCSI_LUN_32(cmd);
1278
1279 switch ((CMD_RESULT(cmd) >> 16)) {
1280 case DID_RESET:
1281 /* Issue marker command. */
413e6e18
MR		 1282 if (!ha->flags.abort_isp_active)
1283 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
1da177e4
LT		 1284 break;
1285 case DID_ABORT:
1286 sp->flags &= ~SRB_ABORT_PENDING;
1287 sp->flags |= SRB_ABORTED;
1da177e4
LT		 1288 break;
1289 default:
1290 break;
1291 }
1292
1293 /* Release memory used for this I/O */
5c1da582 1294 scsi_dma_unmap(cmd);
1da177e4
LT		 1295
1296 /* Call the mid-level driver interrupt handler */
1da177e4
LT		 1297 ha->actthreads--;
1298
413e6e18
MR		 1299 if (sp->wait == NULL)
1300 (*(cmd)->scsi_done)(cmd);
1301 else
1da177e4
LT		 1302 complete(sp->wait);
1303 }
1304 LEAVE("qla1280_done");
1305}
1306
1307/*
1308 * Translates a ISP error to a Linux SCSI error
1309 */
1310static int
1311qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
1312{
1313 int host_status = DID_ERROR;
1314 uint16_t comp_status = le16_to_cpu(sts->comp_status);
1315 uint16_t state_flags = le16_to_cpu(sts->state_flags);
3ef49a3b 1316 uint32_t residual_length = le32_to_cpu(sts->residual_length);
1da177e4
LT		 1317 uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
1318#if DEBUG_QLA1280_INTR
1319 static char *reason[] = {
1320 "DID_OK",
1321 "DID_NO_CONNECT",
1322 "DID_BUS_BUSY",
1323 "DID_TIME_OUT",
1324 "DID_BAD_TARGET",
1325 "DID_ABORT",
1326 "DID_PARITY",
1327 "DID_ERROR",
1328 "DID_RESET",
1329 "DID_BAD_INTR"
1330 };
1331#endif /* DEBUG_QLA1280_INTR */
1332
1333 ENTER("qla1280_return_status");
1334
1335#if DEBUG_QLA1280_INTR
1336 /*
1337 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
1338 comp_status);
1339 */
1340#endif
1341
1342 switch (comp_status) {
1343 case CS_COMPLETE:
1344 host_status = DID_OK;
1345 break;
1346
1347 case CS_INCOMPLETE:
1348 if (!(state_flags & SF_GOT_BUS))
1349 host_status = DID_NO_CONNECT;
1350 else if (!(state_flags & SF_GOT_TARGET))
1351 host_status = DID_BAD_TARGET;
1352 else if (!(state_flags & SF_SENT_CDB))
1353 host_status = DID_ERROR;
1354 else if (!(state_flags & SF_TRANSFERRED_DATA))
1355 host_status = DID_ERROR;
1356 else if (!(state_flags & SF_GOT_STATUS))
1357 host_status = DID_ERROR;
1358 else if (!(state_flags & SF_GOT_SENSE))
1359 host_status = DID_ERROR;
1360 break;
1361
1362 case CS_RESET:
1363 host_status = DID_RESET;
1364 break;
1365
1366 case CS_ABORTED:
1367 host_status = DID_ABORT;
1368 break;
1369
1370 case CS_TIMEOUT:
1371 host_status = DID_TIME_OUT;
1372 break;
1373
1374 case CS_DATA_OVERRUN:
1375 dprintk(2, "Data overrun 0x%x\n", residual_length);
2b55cac3 1376 dprintk(2, "qla1280_return_status: response packet data\n");
1da177e4
LT		 1377 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
1378 host_status = DID_ERROR;
1379 break;
1380
1381 case CS_DATA_UNDERRUN:
5c1da582 1382 if ((scsi_bufflen(cp) - residual_length) <
1da177e4
LT		 1383 cp->underflow) {
1384 printk(KERN_WARNING
1385 "scsi: Underflow detected - retrying "
1386 "command.\n");
1387 host_status = DID_ERROR;
3ef49a3b 1388 } else {
5c1da582 1389 scsi_set_resid(cp, residual_length);
1da177e4 1390 host_status = DID_OK;
3ef49a3b 1391 }
1da177e4
LT		 1392 break;
1393
1394 default:
1395 host_status = DID_ERROR;
1396 break;
1397 }
1398
1399#if DEBUG_QLA1280_INTR
1400 dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
1401 reason[host_status], scsi_status);
1402#endif
1403
1404 LEAVE("qla1280_return_status");
1405
1406 return (scsi_status & 0xff) | (host_status << 16);
1407}
1408
1409/****************************************************************************/
1410/* QLogic ISP1280 Hardware Support Functions. */
1411/****************************************************************************/
1412
1da177e4
LT		 1413/*
1414 * qla1280_initialize_adapter
1415 * Initialize board.
1416 *
1417 * Input:
1418 * ha = adapter block pointer.
1419 *
1420 * Returns:
1421 * 0 = success
1422 */
6f039790 1423static int
1da177e4
LT		 1424qla1280_initialize_adapter(struct scsi_qla_host *ha)
1425{
1426 struct device_reg __iomem *reg;
1427 int status;
1428 int bus;
1da177e4 1429 unsigned long flags;
1da177e4
LT		 1430
1431 ENTER("qla1280_initialize_adapter");
1432
1433 /* Clear adapter flags. */
1434 ha->flags.online = 0;
1435 ha->flags.disable_host_adapter = 0;
1436 ha->flags.reset_active = 0;
1437 ha->flags.abort_isp_active = 0;
1438
1da177e4
LT		 1439#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1440 if (ia64_platform_is("sn2")) {
1441 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
1442 "dual channel lockup workaround\n", ha->host_no);
1443 ha->flags.use_pci_vchannel = 1;
1444 driver_setup.no_nvram = 1;
1445 }
1446#endif
1447
1448 /* TODO: implement support for the 1040 nvram format */
1449 if (IS_ISP1040(ha))
1450 driver_setup.no_nvram = 1;
1451
1452 dprintk(1, "Configure PCI space for adapter...\n");
1453
1454 reg = ha->iobase;
1455
1456 /* Insure mailbox registers are free. */
1457 WRT_REG_WORD(&reg->semaphore, 0);
1458 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
1459 WRT_REG_WORD(&reg->host_cmd, HC_CLR_HOST_INT);
1460 RD_REG_WORD(&reg->host_cmd);
1461
1462 if (qla1280_read_nvram(ha)) {
1463 dprintk(2, "qla1280_initialize_adapter: failed to read "
1464 "NVRAM\n");
1465 }
1466
1da177e4
LT		 1467 /*
1468 * It's necessary to grab the spin here as qla1280_mailbox_command
1469 * needs to be able to drop the lock unconditionally to wait
1470 * for completion.
1da177e4 1471 */
2dbb04c6 1472 spin_lock_irqsave(ha->host->host_lock, flags);
1da177e4
LT		 1473
1474 status = qla1280_load_firmware(ha);
1475 if (status) {
1476 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
1477 ha->host_no);
1478 goto out;
1479 }
1480
1481 /* Setup adapter based on NVRAM parameters. */
1482 dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
1483 qla1280_nvram_config(ha);
1484
1485 if (ha->flags.disable_host_adapter) {
1486 status = 1;
1487 goto out;
1488 }
1489
1490 status = qla1280_init_rings(ha);
1491 if (status)
1492 goto out;
1493
1494 /* Issue SCSI reset, if we can't reset twice then bus is dead */
1495 for (bus = 0; bus < ha->ports; bus++) {
1496 if (!ha->bus_settings[bus].disable_scsi_reset &&
1497 qla1280_bus_reset(ha, bus) &&
1498 qla1280_bus_reset(ha, bus))
1499 ha->bus_settings[bus].scsi_bus_dead = 1;
1500 }
1501
1502 ha->flags.online = 1;
1503 out:
2dbb04c6
JS		 1504 spin_unlock_irqrestore(ha->host->host_lock, flags);
1505
1da177e4
LT		 1506 if (status)
1507 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
1508
1509 LEAVE("qla1280_initialize_adapter");
1510 return status;
1511}
1512
421e33d0
MR		 1513/*
1514 * qla1280_request_firmware
1515 * Acquire firmware for chip. Retain in memory
1516 * for error recovery.
1517 *
1518 * Input:
1519 * ha = adapter block pointer.
1520 *
1521 * Returns:
1522 * Pointer to firmware image or an error code
1523 * cast to pointer via ERR_PTR().
1524 */
1525static const struct firmware *
1526qla1280_request_firmware(struct scsi_qla_host *ha)
1527{
1528 const struct firmware *fw;
1529 int err;
1530 int index;
1531 char *fwname;
1532
1533 spin_unlock_irq(ha->host->host_lock);
1534 mutex_lock(&qla1280_firmware_mutex);
1535
1536 index = ql1280_board_tbl[ha->devnum].fw_index;
1537 fw = qla1280_fw_tbl[index].fw;
1538 if (fw)
1539 goto out;
1540
1541 fwname = qla1280_fw_tbl[index].fwname;
1542 err = request_firmware(&fw, fwname, &ha->pdev->dev);
1543
1544 if (err) {
1545 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
1546 fwname, err);
1547 fw = ERR_PTR(err);
1548 goto unlock;
1549 }
1550 if ((fw->size % 2) || (fw->size < 6)) {
1551 printk(KERN_ERR "Invalid firmware length %zu in image \"%s\"\n",
1552 fw->size, fwname);
1553 release_firmware(fw);
1554 fw = ERR_PTR(-EINVAL);
1555 goto unlock;
1556 }
1557
1558 qla1280_fw_tbl[index].fw = fw;
1559
1560 out:
1561 ha->fwver1 = fw->data[0];
1562 ha->fwver2 = fw->data[1];
1563 ha->fwver3 = fw->data[2];
1564 unlock:
1565 mutex_unlock(&qla1280_firmware_mutex);
1566 spin_lock_irq(ha->host->host_lock);
1567 return fw;
1568}
1569
1da177e4
LT		 1570/*
1571 * Chip diagnostics
1572 * Test chip for proper operation.
1573 *
1574 * Input:
1575 * ha = adapter block pointer.
1576 *
1577 * Returns:
1578 * 0 = success.
1579 */
1580static int
1581qla1280_chip_diag(struct scsi_qla_host *ha)
1582{
1583 uint16_t mb[MAILBOX_REGISTER_COUNT];
1584 struct device_reg __iomem *reg = ha->iobase;
1585 int status = 0;
1586 int cnt;
1587 uint16_t data;
1588 dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", &reg->id_l);
1589
1590 dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
1591
1592 /* Soft reset chip and wait for it to finish. */
1593 WRT_REG_WORD(&reg->ictrl, ISP_RESET);
1594
1595 /*
1596 * We can't do a traditional PCI write flush here by reading
1597 * back the register. The card will not respond once the reset
1598 * is in action and we end up with a machine check exception
1599 * instead. Nothing to do but wait and hope for the best.
1600 * A portable pci_write_flush(pdev) call would be very useful here.
1601 */
1602 udelay(20);
1603 data = qla1280_debounce_register(&reg->ictrl);
1604 /*
1605 * Yet another QLogic gem ;-(
1606 */
1607 for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
1608 udelay(5);
1609 data = RD_REG_WORD(&reg->ictrl);
1610 }
1611
1612 if (!cnt)
1613 goto fail;
1614
1615 /* Reset register cleared by chip reset. */
1616 dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
1617
1618 WRT_REG_WORD(&reg->cfg_1, 0);
1619
1620 /* Reset RISC and disable BIOS which
1621 allows RISC to execute out of RAM. */
1622 WRT_REG_WORD(&reg->host_cmd, HC_RESET_RISC |
1623 HC_RELEASE_RISC | HC_DISABLE_BIOS);
1624
1625 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
1626 data = qla1280_debounce_register(&reg->mailbox0);
1627
1628 /*
1629 * I *LOVE* this code!
1630 */
1631 for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
1632 udelay(5);
1633 data = RD_REG_WORD(&reg->mailbox0);
1634 }
1635
1636 if (!cnt)
1637 goto fail;
1638
1639 /* Check product ID of chip */
1640 dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
1641
1642 if (RD_REG_WORD(&reg->mailbox1) != PROD_ID_1 ||
1643 (RD_REG_WORD(&reg->mailbox2) != PROD_ID_2 &&
1644 RD_REG_WORD(&reg->mailbox2) != PROD_ID_2a) ||
1645 RD_REG_WORD(&reg->mailbox3) != PROD_ID_3 ||
1646 RD_REG_WORD(&reg->mailbox4) != PROD_ID_4) {
1647 printk(KERN_INFO "qla1280: Wrong product ID = "
1648 "0x%x,0x%x,0x%x,0x%x\n",
1649 RD_REG_WORD(&reg->mailbox1),
1650 RD_REG_WORD(&reg->mailbox2),
1651 RD_REG_WORD(&reg->mailbox3),
1652 RD_REG_WORD(&reg->mailbox4));
1653 goto fail;
1654 }
1655
1656 /*
1657 * Enable ints early!!!
1658 */
1659 qla1280_enable_intrs(ha);
1660
1661 dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
1662 /* Wrap Incoming Mailboxes Test. */
1663 mb[0] = MBC_MAILBOX_REGISTER_TEST;
1664 mb[1] = 0xAAAA;
1665 mb[2] = 0x5555;
1666 mb[3] = 0xAA55;
1667 mb[4] = 0x55AA;
1668 mb[5] = 0xA5A5;
1669 mb[6] = 0x5A5A;
1670 mb[7] = 0x2525;
1671
1672 status = qla1280_mailbox_command(ha, 0xff, mb);
1673 if (status)
1674 goto fail;
1675
1676 if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
1677 mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
1678 mb[7] != 0x2525) {
1679 printk(KERN_INFO "qla1280: Failed mbox check\n");
1680 goto fail;
1681 }
1682
1683 dprintk(3, "qla1280_chip_diag: exiting normally\n");
1684 return 0;
1685 fail:
1686 dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
1687 return status;
1688}
1689
1690static int
1691qla1280_load_firmware_pio(struct scsi_qla_host *ha)
1692{
421e33d0
MR		 1693 /* enter with host_lock acquired */
1694
1bfa11db
JSR		 1695 const struct firmware *fw;
1696 const __le16 *fw_data;
1697 uint16_t risc_address, risc_code_size;
1da177e4 1698 uint16_t mb[MAILBOX_REGISTER_COUNT], i;
421e33d0
MR		 1699 int err = 0;
1700
1701 fw = qla1280_request_firmware(ha);
1702 if (IS_ERR(fw))
1703 return PTR_ERR(fw);
1da177e4 1704
1bfa11db
JSR		 1705 fw_data = (const __le16 *)&fw->data[0];
1706 ha->fwstart = __le16_to_cpu(fw_data[2]);
1707
1da177e4 1708 /* Load RISC code. */
1bfa11db 1709 risc_address = ha->fwstart;
0ce49d6d 1710 fw_data = (const __le16 *)&fw->data[6];
1bfa11db 1711 risc_code_size = (fw->size - 6) / 2;
1da177e4
LT		 1712
1713 for (i = 0; i < risc_code_size; i++) {
1714 mb[0] = MBC_WRITE_RAM_WORD;
1715 mb[1] = risc_address + i;
1bfa11db 1716 mb[2] = __le16_to_cpu(fw_data[i]);
1da177e4
LT		 1717
1718 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
1719 if (err) {
1720 printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
1721 ha->host_no);
421e33d0 1722 break;
1da177e4
LT		 1723 }
1724 }
421e33d0 1725
1bfa11db 1726 return err;
1da177e4
LT		 1727}
1728
1729#define DUMP_IT_BACK 0 /* for debug of RISC loading */
1730static int
1731qla1280_load_firmware_dma(struct scsi_qla_host *ha)
1732{
421e33d0 1733 /* enter with host_lock acquired */
1bfa11db
JSR		 1734 const struct firmware *fw;
1735 const __le16 *fw_data;
1736 uint16_t risc_address, risc_code_size;
1da177e4
LT		 1737 uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
1738 int err = 0, num, i;
1739#if DUMP_IT_BACK
1740 uint8_t *sp, *tbuf;
1741 dma_addr_t p_tbuf;
1742
60ea4fb1 1743 tbuf = dma_alloc_coherent(&ha->pdev->dev, 8000, &p_tbuf, GFP_KERNEL);
1da177e4
LT		 1744 if (!tbuf)
1745 return -ENOMEM;
1746#endif
1747
421e33d0
MR		 1748 fw = qla1280_request_firmware(ha);
1749 if (IS_ERR(fw))
1750 return PTR_ERR(fw);
1751
1bfa11db
JSR		 1752 fw_data = (const __le16 *)&fw->data[0];
1753 ha->fwstart = __le16_to_cpu(fw_data[2]);
1754
1da177e4 1755 /* Load RISC code. */
1bfa11db 1756 risc_address = ha->fwstart;
0ce49d6d 1757 fw_data = (const __le16 *)&fw->data[6];
1bfa11db 1758 risc_code_size = (fw->size - 6) / 2;
1da177e4
LT		 1759
1760 dprintk(1, "%s: DMA RISC code (%i) words\n",
cadbd4a5 1761 __func__, risc_code_size);
1da177e4
LT		 1762
1763 num = 0;
1764 while (risc_code_size > 0) {
1765 int warn __attribute__((unused)) = 0;
1766
1767 cnt = 2000 >> 1;
1768
1769 if (cnt > risc_code_size)
1770 cnt = risc_code_size;
1771
1772 dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p),"
1773 "%d,%d(0x%x)\n",
1bfa11db 1774 fw_data, cnt, num, risc_address);
1da177e4 1775 for(i = 0; i < cnt; i++)
1bfa11db 1776 ((__le16 *)ha->request_ring)[i] = fw_data[i];
1da177e4
LT		 1777
1778 mb[0] = MBC_LOAD_RAM;
1779 mb[1] = risc_address;
1780 mb[4] = cnt;
1781 mb[3] = ha->request_dma & 0xffff;
1782 mb[2] = (ha->request_dma >> 16) & 0xffff;
f20f43c3
CH		 1783 mb[7] = upper_32_bits(ha->request_dma) & 0xffff;
1784 mb[6] = upper_32_bits(ha->request_dma) >> 16;
1da177e4 1785 dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
cadbd4a5 1786 __func__, mb[0],
1da177e4
LT		 1787 (void *)(long)ha->request_dma,
1788 mb[6], mb[7], mb[2], mb[3]);
1789 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1790 BIT_1 | BIT_0, mb);
1791 if (err) {
1792 printk(KERN_ERR "scsi(%li): Failed to load partial "
1793 "segment of f\n", ha->host_no);
1794 goto out;
1795 }
1796
1797#if DUMP_IT_BACK
1798 mb[0] = MBC_DUMP_RAM;
1799 mb[1] = risc_address;
1800 mb[4] = cnt;
1801 mb[3] = p_tbuf & 0xffff;
1802 mb[2] = (p_tbuf >> 16) & 0xffff;
f20f43c3
CH		 1803 mb[7] = upper_32_bits(p_tbuf) & 0xffff;
1804 mb[6] = upper_32_bits(p_tbuf) >> 16;
1da177e4
LT		 1805
1806 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1807 BIT_1 | BIT_0, mb);
1808 if (err) {
1809 printk(KERN_ERR
1810 "Failed to dump partial segment of f/w\n");
1811 goto out;
1812 }
1813 sp = (uint8_t *)ha->request_ring;
1814 for (i = 0; i < (cnt << 1); i++) {
1815 if (tbuf[i] != sp[i] && warn++ < 10) {
1816 printk(KERN_ERR "%s: FW compare error @ "
1817 "byte(0x%x) loop#=%x\n",
cadbd4a5 1818 __func__, i, num);
1da177e4
LT		 1819 printk(KERN_ERR "%s: FWbyte=%x "
1820 "FWfromChip=%x\n",
cadbd4a5 1821 __func__, sp[i], tbuf[i]);
1da177e4
LT		 1822 /*break; */
1823 }
1824 }
1825#endif
1826 risc_address += cnt;
1827 risc_code_size = risc_code_size - cnt;
1bfa11db 1828 fw_data = fw_data + cnt;
1da177e4
LT		 1829 num++;
1830 }
1831
1832 out:
1833#if DUMP_IT_BACK
60ea4fb1 1834 dma_free_coherent(&ha->pdev->dev, 8000, tbuf, p_tbuf);
1da177e4
LT		 1835#endif
1836 return err;
1837}
1838
1839static int
1840qla1280_start_firmware(struct scsi_qla_host *ha)
1841{
1842 uint16_t mb[MAILBOX_REGISTER_COUNT];
1843 int err;
1844
1845 dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
cadbd4a5 1846 __func__);
1da177e4
LT		 1847
1848 /* Verify checksum of loaded RISC code. */
1849 mb[0] = MBC_VERIFY_CHECKSUM;
1850 /* mb[1] = ql12_risc_code_addr01; */
1bfa11db 1851 mb[1] = ha->fwstart;
1da177e4
LT		 1852 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1853 if (err) {
2b55cac3 1854 printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no);
1da177e4
LT		 1855 return err;
1856 }
1857
1858 /* Start firmware execution. */
cadbd4a5 1859 dprintk(1, "%s: start firmware running.\n", __func__);
1da177e4 1860 mb[0] = MBC_EXECUTE_FIRMWARE;
1bfa11db 1861 mb[1] = ha->fwstart;
1da177e4
LT		 1862 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
1863 if (err) {
1864 printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
1865 ha->host_no);
1866 }
1867
1868 return err;
1869}
1870
1871static int
1872qla1280_load_firmware(struct scsi_qla_host *ha)
1873{
421e33d0 1874 /* enter with host_lock taken */
5c79d615 1875 int err;
1da177e4
LT		 1876
1877 err = qla1280_chip_diag(ha);
1878 if (err)
1879 goto out;
1880 if (IS_ISP1040(ha))
1881 err = qla1280_load_firmware_pio(ha);
1882 else
1883 err = qla1280_load_firmware_dma(ha);
1884 if (err)
1885 goto out;
1886 err = qla1280_start_firmware(ha);
1887 out:
1888 return err;
1889}
1890
1891/*
1892 * Initialize rings
1893 *
1894 * Input:
1895 * ha = adapter block pointer.
1896 * ha->request_ring = request ring virtual address
1897 * ha->response_ring = response ring virtual address
1898 * ha->request_dma = request ring physical address
1899 * ha->response_dma = response ring physical address
1900 *
1901 * Returns:
1902 * 0 = success.
1903 */
1904static int
1905qla1280_init_rings(struct scsi_qla_host *ha)
1906{
1907 uint16_t mb[MAILBOX_REGISTER_COUNT];
1908 int status = 0;
1909
1910 ENTER("qla1280_init_rings");
1911
1912 /* Clear outstanding commands array. */
1913 memset(ha->outstanding_cmds, 0,
1914 sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
1915
1916 /* Initialize request queue. */
1917 ha->request_ring_ptr = ha->request_ring;
1918 ha->req_ring_index = 0;
1919 ha->req_q_cnt = REQUEST_ENTRY_CNT;
1920 /* mb[0] = MBC_INIT_REQUEST_QUEUE; */
1921 mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
1922 mb[1] = REQUEST_ENTRY_CNT;
1923 mb[3] = ha->request_dma & 0xffff;
1924 mb[2] = (ha->request_dma >> 16) & 0xffff;
1925 mb[4] = 0;
f20f43c3
CH		 1926 mb[7] = upper_32_bits(ha->request_dma) & 0xffff;
1927 mb[6] = upper_32_bits(ha->request_dma) >> 16;
1da177e4
LT		 1928 if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
1929 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1930 &mb[0]))) {
1931 /* Initialize response queue. */
1932 ha->response_ring_ptr = ha->response_ring;
1933 ha->rsp_ring_index = 0;
1934 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
1935 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
1936 mb[1] = RESPONSE_ENTRY_CNT;
1937 mb[3] = ha->response_dma & 0xffff;
1938 mb[2] = (ha->response_dma >> 16) & 0xffff;
1939 mb[5] = 0;
f20f43c3
CH		 1940 mb[7] = upper_32_bits(ha->response_dma) & 0xffff;
1941 mb[6] = upper_32_bits(ha->response_dma) >> 16;
1da177e4
LT		 1942 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
1943 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1944 &mb[0]);
1945 }
1946
1947 if (status)
1948 dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
1949
1950 LEAVE("qla1280_init_rings");
1951 return status;
1952}
1953
1954static void
1955qla1280_print_settings(struct nvram *nv)
1956{
1957 dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
1958 nv->bus[0].config_1.initiator_id);
1959 dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
1960 nv->bus[1].config_1.initiator_id);
1961
1962 dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
1963 nv->bus[0].bus_reset_delay);
1964 dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
1965 nv->bus[1].bus_reset_delay);
1966
1967 dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
1968 dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
1969 dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
1970 dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
1971
1972 dprintk(1, "qla1280 : async data setup time[0]=%d\n",
1973 nv->bus[0].config_2.async_data_setup_time);
1974 dprintk(1, "qla1280 : async data setup time[1]=%d\n",
1975 nv->bus[1].config_2.async_data_setup_time);
1976
1977 dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
1978 nv->bus[0].config_2.req_ack_active_negation);
1979 dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
1980 nv->bus[1].config_2.req_ack_active_negation);
1981
1982 dprintk(1, "qla1280 : data line active negation[0]=%d\n",
1983 nv->bus[0].config_2.data_line_active_negation);
1984 dprintk(1, "qla1280 : data line active negation[1]=%d\n",
1985 nv->bus[1].config_2.data_line_active_negation);
1986
1987 dprintk(1, "qla1280 : disable loading risc code=%d\n",
1988 nv->cntr_flags_1.disable_loading_risc_code);
1989
1990 dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
1991 nv->cntr_flags_1.enable_64bit_addressing);
1992
1993 dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
1994 nv->bus[0].selection_timeout);
1995 dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
1996 nv->bus[1].selection_timeout);
1997
1998 dprintk(1, "qla1280 : max queue depth[0]=%d\n",
1999 nv->bus[0].max_queue_depth);
2000 dprintk(1, "qla1280 : max queue depth[1]=%d\n",
2001 nv->bus[1].max_queue_depth);
2002}
2003
2004static void
2005qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
2006{
2007 struct nvram *nv = &ha->nvram;
2008
7a34766f
CH		 2009 nv->bus[bus].target[target].parameter.renegotiate_on_error = 1;
2010 nv->bus[bus].target[target].parameter.auto_request_sense = 1;
2011 nv->bus[bus].target[target].parameter.tag_queuing = 1;
2012 nv->bus[bus].target[target].parameter.enable_sync = 1;
1da177e4 2013#if 1 /* Some SCSI Processors do not seem to like this */
7a34766f 2014 nv->bus[bus].target[target].parameter.enable_wide = 1;
1da177e4 2015#endif
1da177e4
LT		 2016 nv->bus[bus].target[target].execution_throttle =
2017 nv->bus[bus].max_queue_depth - 1;
7a34766f
CH		 2018 nv->bus[bus].target[target].parameter.parity_checking = 1;
2019 nv->bus[bus].target[target].parameter.disconnect_allowed = 1;
1da177e4
LT		 2020
2021 if (IS_ISP1x160(ha)) {
2022 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
2023 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
2024 nv->bus[bus].target[target].sync_period = 9;
2025 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
2026 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
2027 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
2028 } else {
2029 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
2030 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
2031 nv->bus[bus].target[target].sync_period = 10;
2032 }
2033}
2034
2035static void
2036qla1280_set_defaults(struct scsi_qla_host *ha)
2037{
2038 struct nvram *nv = &ha->nvram;
2039 int bus, target;
2040
2041 dprintk(1, "Using defaults for NVRAM: \n");
2042 memset(nv, 0, sizeof(struct nvram));
2043
2044 /* nv->cntr_flags_1.disable_loading_risc_code = 1; */
2045 nv->firmware_feature.f.enable_fast_posting = 1;
2046 nv->firmware_feature.f.disable_synchronous_backoff = 1;
0888f4c3
CH		 2047 nv->termination.scsi_bus_0_control = 3;
2048 nv->termination.scsi_bus_1_control = 3;
2049 nv->termination.auto_term_support = 1;
1da177e4
LT		 2050
2051 /*
2052 * Set default FIFO magic - What appropriate values would be here
2053 * is unknown. This is what I have found testing with 12160s.
2054 *
2055 * Now, I would love the magic decoder ring for this one, the
2056 * header file provided by QLogic seems to be bogus or incomplete
2057 * at best.
2058 */
0888f4c3
CH		 2059 nv->isp_config.burst_enable = 1;
2060 if (IS_ISP1040(ha))
2061 nv->isp_config.fifo_threshold |= 3;
2062 else
2063 nv->isp_config.fifo_threshold |= 4;
2064
1da177e4
LT		 2065 if (IS_ISP1x160(ha))
2066 nv->isp_parameter = 0x01; /* fast memory enable */
2067
2068 for (bus = 0; bus < MAX_BUSES; bus++) {
2069 nv->bus[bus].config_1.initiator_id = 7;
2070 nv->bus[bus].config_2.req_ack_active_negation = 1;
2071 nv->bus[bus].config_2.data_line_active_negation = 1;
2072 nv->bus[bus].selection_timeout = 250;
af5741c6 2073 nv->bus[bus].max_queue_depth = 32;
1da177e4
LT		 2074
2075 if (IS_ISP1040(ha)) {
2076 nv->bus[bus].bus_reset_delay = 3;
2077 nv->bus[bus].config_2.async_data_setup_time = 6;
2078 nv->bus[bus].retry_delay = 1;
2079 } else {
2080 nv->bus[bus].bus_reset_delay = 5;
2081 nv->bus[bus].config_2.async_data_setup_time = 8;
2082 }
2083
2084 for (target = 0; target < MAX_TARGETS; target++)
2085 qla1280_set_target_defaults(ha, bus, target);
2086 }
2087}
2088
2089static int
2090qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
2091{
2092 struct nvram *nv = &ha->nvram;
2093 uint16_t mb[MAILBOX_REGISTER_COUNT];
2094 int status, lun;
7a34766f 2095 uint16_t flag;
1da177e4
LT		 2096
2097 /* Set Target Parameters. */
2098 mb[0] = MBC_SET_TARGET_PARAMETERS;
7a34766f 2099 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1da177e4
LT		 2100
2101 /*
7a34766f
CH		 2102 * Do not enable sync and ppr for the initial INQUIRY run. We
2103 * enable this later if we determine the target actually
2104 * supports it.
1da177e4 2105 */
7a34766f
CH		 2106 mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE
2107 | TP_WIDE | TP_PARITY | TP_DISCONNECT);
1da177e4
LT		 2108
2109 if (IS_ISP1x160(ha))
2110 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
2111 else
2112 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
2113 mb[3] |= nv->bus[bus].target[target].sync_period;
7a34766f 2114 status = qla1280_mailbox_command(ha, 0x0f, mb);
1da177e4
LT		 2115
2116 /* Save Tag queuing enable flag. */
af5741c6 2117 flag = (BIT_0 << target);
7a34766f
CH		 2118 if (nv->bus[bus].target[target].parameter.tag_queuing)
2119 ha->bus_settings[bus].qtag_enables |= flag;
1da177e4
LT		 2120
2121 /* Save Device enable flag. */
2122 if (IS_ISP1x160(ha)) {
2123 if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
7a34766f 2124 ha->bus_settings[bus].device_enables |= flag;
1da177e4
LT		 2125 ha->bus_settings[bus].lun_disables |= 0;
2126 } else {
2127 if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
7a34766f 2128 ha->bus_settings[bus].device_enables |= flag;
1da177e4
LT		 2129 /* Save LUN disable flag. */
2130 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
7a34766f 2131 ha->bus_settings[bus].lun_disables |= flag;
1da177e4
LT		 2132 }
2133
2134 /* Set Device Queue Parameters. */
2135 for (lun = 0; lun < MAX_LUNS; lun++) {
2136 mb[0] = MBC_SET_DEVICE_QUEUE;
7a34766f
CH		 2137 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2138 mb[1] |= lun;
1da177e4
LT		 2139 mb[2] = nv->bus[bus].max_queue_depth;
2140 mb[3] = nv->bus[bus].target[target].execution_throttle;
7a34766f 2141 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1da177e4
LT		 2142 }
2143
2144 return status;
2145}
2146
2147static int
2148qla1280_config_bus(struct scsi_qla_host *ha, int bus)
2149{
2150 struct nvram *nv = &ha->nvram;
2151 uint16_t mb[MAILBOX_REGISTER_COUNT];
2152 int target, status;
2153
2154 /* SCSI Reset Disable. */
2155 ha->bus_settings[bus].disable_scsi_reset =
2156 nv->bus[bus].config_1.scsi_reset_disable;
2157
2158 /* Initiator ID. */
2159 ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
2160 mb[0] = MBC_SET_INITIATOR_ID;
2161 mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
2162 ha->bus_settings[bus].id;
2163 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2164
2165 /* Reset Delay. */
2166 ha->bus_settings[bus].bus_reset_delay =
2167 nv->bus[bus].bus_reset_delay;
2168
2169 /* Command queue depth per device. */
2170 ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
2171
2172 /* Set target parameters. */
2173 for (target = 0; target < MAX_TARGETS; target++)
2174 status |= qla1280_config_target(ha, bus, target);
2175
2176 return status;
2177}
2178
2179static int
2180qla1280_nvram_config(struct scsi_qla_host *ha)
2181{
2182 struct device_reg __iomem *reg = ha->iobase;
2183 struct nvram *nv = &ha->nvram;
2184 int bus, target, status = 0;
2185 uint16_t mb[MAILBOX_REGISTER_COUNT];
1da177e4
LT		 2186
2187 ENTER("qla1280_nvram_config");
2188
2189 if (ha->nvram_valid) {
2190 /* Always force AUTO sense for LINUX SCSI */
2191 for (bus = 0; bus < MAX_BUSES; bus++)
2192 for (target = 0; target < MAX_TARGETS; target++) {
7a34766f 2193 nv->bus[bus].target[target].parameter.
1da177e4
LT		 2194 auto_request_sense = 1;
2195 }
2196 } else {
2197 qla1280_set_defaults(ha);
2198 }
2199
2200 qla1280_print_settings(nv);
2201
2202 /* Disable RISC load of firmware. */
2203 ha->flags.disable_risc_code_load =
2204 nv->cntr_flags_1.disable_loading_risc_code;
2205
2206 if (IS_ISP1040(ha)) {
2207 uint16_t hwrev, cfg1, cdma_conf, ddma_conf;
2208
2209 hwrev = RD_REG_WORD(&reg->cfg_0) & ISP_CFG0_HWMSK;
2210
0888f4c3 2211 cfg1 = RD_REG_WORD(&reg->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6);
1da177e4
LT		 2212 cdma_conf = RD_REG_WORD(&reg->cdma_cfg);
2213 ddma_conf = RD_REG_WORD(&reg->ddma_cfg);
2214
2215 /* Busted fifo, says mjacob. */
0888f4c3
CH		 2216 if (hwrev != ISP_CFG0_1040A)
2217 cfg1 |= nv->isp_config.fifo_threshold << 4;
2218
2219 cfg1 |= nv->isp_config.burst_enable << 2;
2220 WRT_REG_WORD(&reg->cfg_1, cfg1);
1da177e4
LT		 2221
2222 WRT_REG_WORD(&reg->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
2223 WRT_REG_WORD(&reg->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
2224 } else {
0888f4c3
CH		 2225 uint16_t cfg1, term;
2226
1da177e4 2227 /* Set ISP hardware DMA burst */
0888f4c3
CH		 2228 cfg1 = nv->isp_config.fifo_threshold << 4;
2229 cfg1 |= nv->isp_config.burst_enable << 2;
1da177e4
LT		 2230 /* Enable DMA arbitration on dual channel controllers */
2231 if (ha->ports > 1)
0888f4c3
CH		 2232 cfg1 |= BIT_13;
2233 WRT_REG_WORD(&reg->cfg_1, cfg1);
1da177e4
LT		 2234
2235 /* Set SCSI termination. */
0888f4c3
CH		 2236 WRT_REG_WORD(&reg->gpio_enable,
2237 BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0);
2238 term = nv->termination.scsi_bus_1_control;
2239 term |= nv->termination.scsi_bus_0_control << 2;
2240 term |= nv->termination.auto_term_support << 7;
2241 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2242 WRT_REG_WORD(&reg->gpio_data, term);
1da177e4 2243 }
0888f4c3 2244 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
1da177e4
LT		 2245
2246 /* ISP parameter word. */
2247 mb[0] = MBC_SET_SYSTEM_PARAMETER;
2248 mb[1] = nv->isp_parameter;
2249 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2250
2251 if (IS_ISP1x40(ha)) {
2252 /* clock rate - for qla1240 and older, only */
2253 mb[0] = MBC_SET_CLOCK_RATE;
2254 mb[1] = 40;
2255 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2256 }
2257
2258 /* Firmware feature word. */
2259 mb[0] = MBC_SET_FIRMWARE_FEATURES;
7a34766f
CH		 2260 mb[1] = nv->firmware_feature.f.enable_fast_posting;
2261 mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1;
2262 mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5;
1da177e4
LT		 2263#if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2)
2264 if (ia64_platform_is("sn2")) {
2265 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
2266 "workaround\n", ha->host_no);
7a34766f 2267 mb[1] |= nv->firmware_feature.f.unused_9 << 9; /* XXX */
1da177e4
LT		 2268 }
2269#endif
7a34766f 2270 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1da177e4
LT		 2271
2272 /* Retry count and delay. */
2273 mb[0] = MBC_SET_RETRY_COUNT;
2274 mb[1] = nv->bus[0].retry_count;
2275 mb[2] = nv->bus[0].retry_delay;
2276 mb[6] = nv->bus[1].retry_count;
2277 mb[7] = nv->bus[1].retry_delay;
2278 status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
2279 BIT_1 | BIT_0, &mb[0]);
2280
2281 /* ASYNC data setup time. */
2282 mb[0] = MBC_SET_ASYNC_DATA_SETUP;
2283 mb[1] = nv->bus[0].config_2.async_data_setup_time;
2284 mb[2] = nv->bus[1].config_2.async_data_setup_time;
2285 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2286
2287 /* Active negation states. */
2288 mb[0] = MBC_SET_ACTIVE_NEGATION;
2289 mb[1] = 0;
2290 if (nv->bus[0].config_2.req_ack_active_negation)
2291 mb[1] |= BIT_5;
2292 if (nv->bus[0].config_2.data_line_active_negation)
2293 mb[1] |= BIT_4;
2294 mb[2] = 0;
2295 if (nv->bus[1].config_2.req_ack_active_negation)
2296 mb[2] |= BIT_5;
2297 if (nv->bus[1].config_2.data_line_active_negation)
2298 mb[2] |= BIT_4;
7a34766f 2299 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
1da177e4
LT		 2300
2301 mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
2302 mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */
7a34766f 2303 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1da177e4
LT		 2304
2305 /* thingy */
2306 mb[0] = MBC_SET_PCI_CONTROL;
7a34766f
CH		 2307 mb[1] = BIT_1; /* Data DMA Channel Burst Enable */
2308 mb[2] = BIT_1; /* Command DMA Channel Burst Enable */
2309 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
1da177e4
LT		 2310
2311 mb[0] = MBC_SET_TAG_AGE_LIMIT;
2312 mb[1] = 8;
7a34766f 2313 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1da177e4
LT		 2314
2315 /* Selection timeout. */
2316 mb[0] = MBC_SET_SELECTION_TIMEOUT;
2317 mb[1] = nv->bus[0].selection_timeout;
2318 mb[2] = nv->bus[1].selection_timeout;
7a34766f 2319 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
1da177e4
LT		 2320
2321 for (bus = 0; bus < ha->ports; bus++)
2322 status |= qla1280_config_bus(ha, bus);
2323
2324 if (status)
2325 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
2326
2327 LEAVE("qla1280_nvram_config");
2328 return status;
2329}
2330
2331/*
2332 * Get NVRAM data word
2333 * Calculates word position in NVRAM and calls request routine to
2334 * get the word from NVRAM.
2335 *
2336 * Input:
2337 * ha = adapter block pointer.
2338 * address = NVRAM word address.
2339 *
2340 * Returns:
2341 * data word.
2342 */
2343static uint16_t
2344qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
2345{
2346 uint32_t nv_cmd;
2347 uint16_t data;
2348
2349 nv_cmd = address << 16;
2350 nv_cmd |= NV_READ_OP;
2351
2352 data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
2353
2354 dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
2355 "0x%x", data);
2356
2357 return data;
2358}
2359
2360/*
2361 * NVRAM request
2362 * Sends read command to NVRAM and gets data from NVRAM.
2363 *
2364 * Input:
2365 * ha = adapter block pointer.
2366 * nv_cmd = Bit 26 = start bit
2367 * Bit 25, 24 = opcode
2368 * Bit 23-16 = address
2369 * Bit 15-0 = write data
2370 *
2371 * Returns:
2372 * data word.
2373 */
2374static uint16_t
2375qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
2376{
2377 struct device_reg __iomem *reg = ha->iobase;
2378 int cnt;
2379 uint16_t data = 0;
2380 uint16_t reg_data;
2381
2382 /* Send command to NVRAM. */
2383
2384 nv_cmd <<= 5;
2385 for (cnt = 0; cnt < 11; cnt++) {
2386 if (nv_cmd & BIT_31)
2387 qla1280_nv_write(ha, NV_DATA_OUT);
2388 else
2389 qla1280_nv_write(ha, 0);
2390 nv_cmd <<= 1;
2391 }
2392
2393 /* Read data from NVRAM. */
2394
2395 for (cnt = 0; cnt < 16; cnt++) {
2396 WRT_REG_WORD(&reg->nvram, (NV_SELECT | NV_CLOCK));
2397 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2398 NVRAM_DELAY();
2399 data <<= 1;
2400 reg_data = RD_REG_WORD(&reg->nvram);
2401 if (reg_data & NV_DATA_IN)
2402 data |= BIT_0;
2403 WRT_REG_WORD(&reg->nvram, NV_SELECT);
2404 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2405 NVRAM_DELAY();
2406 }
2407
2408 /* Deselect chip. */
2409
2410 WRT_REG_WORD(&reg->nvram, NV_DESELECT);
2411 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2412 NVRAM_DELAY();
2413
2414 return data;
2415}
2416
2417static void
2418qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
2419{
2420 struct device_reg __iomem *reg = ha->iobase;
2421
2422 WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
2423 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2424 NVRAM_DELAY();
2425 WRT_REG_WORD(&reg->nvram, data | NV_SELECT | NV_CLOCK);
2426 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2427 NVRAM_DELAY();
2428 WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
2429 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2430 NVRAM_DELAY();
2431}
2432
2433/*
2434 * Mailbox Command
2435 * Issue mailbox command and waits for completion.
2436 *
2437 * Input:
2438 * ha = adapter block pointer.
2439 * mr = mailbox registers to load.
2440 * mb = data pointer for mailbox registers.
2441 *
2442 * Output:
2443 * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
2444 *
2445 * Returns:
2446 * 0 = success
2447 */
2448static int
2449qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
2450{
2451 struct device_reg __iomem *reg = ha->iobase;
1da177e4
LT		 2452 int status = 0;
2453 int cnt;
2454 uint16_t *optr, *iptr;
2455 uint16_t __iomem *mptr;
2456 uint16_t data;
6e9a4738 2457 DECLARE_COMPLETION_ONSTACK(wait);
1da177e4
LT		 2458
2459 ENTER("qla1280_mailbox_command");
2460
2461 if (ha->mailbox_wait) {
2462 printk(KERN_ERR "Warning mailbox wait already in use!\n");
2463 }
2464 ha->mailbox_wait = &wait;
2465
2466 /*
2467 * We really should start out by verifying that the mailbox is
2468 * available before starting sending the command data
2469 */
2470 /* Load mailbox registers. */
2471 mptr = (uint16_t __iomem *) &reg->mailbox0;
2472 iptr = mb;
2473 for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
2474 if (mr & BIT_0) {
2475 WRT_REG_WORD(mptr, (*iptr));
2476 }
2477
2478 mr >>= 1;
2479 mptr++;
2480 iptr++;
2481 }
2482
2483 /* Issue set host interrupt command. */
2484
2485 /* set up a timer just in case we're really jammed */
9c6c273a
KC		 2486 timer_setup(&ha->mailbox_timer, qla1280_mailbox_timeout, 0);
2487 mod_timer(&ha->mailbox_timer, jiffies + 20 * HZ);
1da177e4 2488
2dbb04c6 2489 spin_unlock_irq(ha->host->host_lock);
1da177e4
LT		 2490 WRT_REG_WORD(&reg->host_cmd, HC_SET_HOST_INT);
2491 data = qla1280_debounce_register(&reg->istatus);
2492
2493 wait_for_completion(&wait);
9c6c273a 2494 del_timer_sync(&ha->mailbox_timer);
1da177e4 2495
2dbb04c6 2496 spin_lock_irq(ha->host->host_lock);
1da177e4
LT		 2497
2498 ha->mailbox_wait = NULL;
2499
2500 /* Check for mailbox command timeout. */
2501 if (ha->mailbox_out[0] != MBS_CMD_CMP) {
2502 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
2503 "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
2504 "0x%04x\n",
2505 mb[0], ha->mailbox_out[0], RD_REG_WORD(&reg->istatus));
2506 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
2507 RD_REG_WORD(&reg->mailbox0), RD_REG_WORD(&reg->mailbox1),
2508 RD_REG_WORD(&reg->mailbox2), RD_REG_WORD(&reg->mailbox3));
2509 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
2510 RD_REG_WORD(&reg->mailbox4), RD_REG_WORD(&reg->mailbox5),
2511 RD_REG_WORD(&reg->mailbox6), RD_REG_WORD(&reg->mailbox7));
2512 status = 1;
2513 }
2514
2515 /* Load return mailbox registers. */
2516 optr = mb;
2517 iptr = (uint16_t *) &ha->mailbox_out[0];
2518 mr = MAILBOX_REGISTER_COUNT;
2519 memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
2520
1da177e4
LT		 2521 if (ha->flags.reset_marker)
2522 qla1280_rst_aen(ha);
2523
1da177e4
LT		 2524 if (status)
2525 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
2526 "0x%x ****\n", mb[0]);
2527
2528 LEAVE("qla1280_mailbox_command");
2529 return status;
2530}
2531
2532/*
2533 * qla1280_poll
2534 * Polls ISP for interrupts.
2535 *
2536 * Input:
2537 * ha = adapter block pointer.
2538 */
2539static void
2540qla1280_poll(struct scsi_qla_host *ha)
2541{
2542 struct device_reg __iomem *reg = ha->iobase;
2543 uint16_t data;
2544 LIST_HEAD(done_q);
2545
2546 /* ENTER("qla1280_poll"); */
2547
2548 /* Check for pending interrupts. */
2549 data = RD_REG_WORD(&reg->istatus);
2550 if (data & RISC_INT)
2551 qla1280_isr(ha, &done_q);
2552
2553 if (!ha->mailbox_wait) {
2554 if (ha->flags.reset_marker)
2555 qla1280_rst_aen(ha);
2556 }
2557
2558 if (!list_empty(&done_q))
2559 qla1280_done(ha);
2560
2561 /* LEAVE("qla1280_poll"); */
2562}
2563
2564/*
2565 * qla1280_bus_reset
2566 * Issue SCSI bus reset.
2567 *
2568 * Input:
2569 * ha = adapter block pointer.
2570 * bus = SCSI bus number.
2571 *
2572 * Returns:
2573 * 0 = success
2574 */
2575static int
2576qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
2577{
2578 uint16_t mb[MAILBOX_REGISTER_COUNT];
2579 uint16_t reset_delay;
2580 int status;
2581
2582 dprintk(3, "qla1280_bus_reset: entered\n");
2583
2584 if (qla1280_verbose)
2585 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
2586 ha->host_no, bus);
2587
2588 reset_delay = ha->bus_settings[bus].bus_reset_delay;
2589 mb[0] = MBC_BUS_RESET;
2590 mb[1] = reset_delay;
2591 mb[2] = (uint16_t) bus;
2592 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2593
2594 if (status) {
2595 if (ha->bus_settings[bus].failed_reset_count > 2)
2596 ha->bus_settings[bus].scsi_bus_dead = 1;
2597 ha->bus_settings[bus].failed_reset_count++;
2598 } else {
2dbb04c6 2599 spin_unlock_irq(ha->host->host_lock);
117e4b27 2600 ssleep(reset_delay);
2dbb04c6 2601 spin_lock_irq(ha->host->host_lock);
1da177e4
LT		 2602
2603 ha->bus_settings[bus].scsi_bus_dead = 0;
2604 ha->bus_settings[bus].failed_reset_count = 0;
2605 ha->bus_settings[bus].reset_marker = 0;
2606 /* Issue marker command. */
2607 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
2608 }
2609
2610 /*
2611 * We should probably call qla1280_set_target_parameters()
2612 * here as well for all devices on the bus.
2613 */
2614
2615 if (status)
2616 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
2617 else
2618 dprintk(3, "qla1280_bus_reset: exiting normally\n");
2619
2620 return status;
2621}
2622
2623/*
2624 * qla1280_device_reset
2625 * Issue bus device reset message to the target.
2626 *
2627 * Input:
2628 * ha = adapter block pointer.
2629 * bus = SCSI BUS number.
2630 * target = SCSI ID.
2631 *
2632 * Returns:
2633 * 0 = success
2634 */
2635static int
2636qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
2637{
2638 uint16_t mb[MAILBOX_REGISTER_COUNT];
2639 int status;
2640
2641 ENTER("qla1280_device_reset");
2642
2643 mb[0] = MBC_ABORT_TARGET;
2644 mb[1] = (bus ? (target | BIT_7) : target) << 8;
2645 mb[2] = 1;
2646 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2647
2648 /* Issue marker command. */
2649 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
2650
2651 if (status)
2652 dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
2653
2654 LEAVE("qla1280_device_reset");
2655 return status;
2656}
2657
1da177e4
LT		 2658/*
2659 * qla1280_abort_command
2660 * Abort command aborts a specified IOCB.
2661 *
2662 * Input:
2663 * ha = adapter block pointer.
2664 * sp = SB structure pointer.
2665 *
2666 * Returns:
2667 * 0 = success
2668 */
2669static int
2670qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
2671{
2672 uint16_t mb[MAILBOX_REGISTER_COUNT];
2673 unsigned int bus, target, lun;
2674 int status;
2675
2676 ENTER("qla1280_abort_command");
2677
2678 bus = SCSI_BUS_32(sp->cmd);
2679 target = SCSI_TCN_32(sp->cmd);
2680 lun = SCSI_LUN_32(sp->cmd);
2681
2682 sp->flags |= SRB_ABORT_PENDING;
2683
2684 mb[0] = MBC_ABORT_COMMAND;
2685 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2686 mb[2] = handle >> 16;
2687 mb[3] = handle & 0xffff;
2688 status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
2689
2690 if (status) {
2691 dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
2692 sp->flags &= ~SRB_ABORT_PENDING;
2693 }
2694
2695
2696 LEAVE("qla1280_abort_command");
2697 return status;
2698}
2699
2700/*
2701 * qla1280_reset_adapter
2702 * Reset adapter.
2703 *
2704 * Input:
2705 * ha = adapter block pointer.
2706 */
2707static void
2708qla1280_reset_adapter(struct scsi_qla_host *ha)
2709{
2710 struct device_reg __iomem *reg = ha->iobase;
2711
2712 ENTER("qla1280_reset_adapter");
2713
2714 /* Disable ISP chip */
2715 ha->flags.online = 0;
2716 WRT_REG_WORD(&reg->ictrl, ISP_RESET);
2717 WRT_REG_WORD(&reg->host_cmd,
2718 HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
2719 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2720
2721 LEAVE("qla1280_reset_adapter");
2722}
2723
2724/*
2725 * Issue marker command.
2726 * Function issues marker IOCB.
2727 *
2728 * Input:
2729 * ha = adapter block pointer.
2730 * bus = SCSI BUS number
2731 * id = SCSI ID
2732 * lun = SCSI LUN
2733 * type = marker modifier
2734 */
2735static void
2736qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
2737{
2738 struct mrk_entry *pkt;
2739
2740 ENTER("qla1280_marker");
2741
2742 /* Get request packet. */
2743 if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
2744 pkt->entry_type = MARKER_TYPE;
2745 pkt->lun = (uint8_t) lun;
2746 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
2747 pkt->modifier = type;
2748 pkt->entry_status = 0;
2749
2750 /* Issue command to ISP */
2751 qla1280_isp_cmd(ha);
2752 }
2753
2754 LEAVE("qla1280_marker");
2755}
2756
2757
2758/*
2759 * qla1280_64bit_start_scsi
2760 * The start SCSI is responsible for building request packets on
2761 * request ring and modifying ISP input pointer.
2762 *
2763 * Input:
2764 * ha = adapter block pointer.
2765 * sp = SB structure pointer.
2766 *
2767 * Returns:
2768 * 0 = success, was able to issue command.
2769 */
2770#ifdef QLA_64BIT_PTR
2771static int
2772qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2773{
2774 struct device_reg __iomem *reg = ha->iobase;
2775 struct scsi_cmnd *cmd = sp->cmd;
2776 cmd_a64_entry_t *pkt;
8d6810d3 2777 __le32 *dword_ptr;
1da177e4
LT		 2778 dma_addr_t dma_handle;
2779 int status = 0;
2780 int cnt;
2781 int req_cnt;
5c1da582 2782 int seg_cnt;
1da177e4
LT		 2783 u8 dir;
2784
2785 ENTER("qla1280_64bit_start_scsi:");
2786
2787 /* Calculate number of entries and segments required. */
2788 req_cnt = 1;
5c1da582
JS		 2789 seg_cnt = scsi_dma_map(cmd);
2790 if (seg_cnt > 0) {
1da177e4
LT		 2791 if (seg_cnt > 2) {
2792 req_cnt += (seg_cnt - 2) / 5;
2793 if ((seg_cnt - 2) % 5)
2794 req_cnt++;
2795 }
5c1da582
JS		 2796 } else if (seg_cnt < 0) {
2797 status = 1;
2798 goto out;
1da177e4
LT		 2799 }
2800
2801 if ((req_cnt + 2) >= ha->req_q_cnt) {
2802 /* Calculate number of free request entries. */
2803 cnt = RD_REG_WORD(&reg->mailbox4);
2804 if (ha->req_ring_index < cnt)
2805 ha->req_q_cnt = cnt - ha->req_ring_index;
2806 else
2807 ha->req_q_cnt =
2808 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
2809 }
2810
2b55cac3
CH		 2811 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
2812 ha->req_q_cnt, seg_cnt);
2813
1da177e4
LT		 2814 /* If room for request in request ring. */
2815 if ((req_cnt + 2) >= ha->req_q_cnt) {
fd65e5e9 2816 status = SCSI_MLQUEUE_HOST_BUSY;
2b55cac3 2817 dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt="
1da177e4
LT		 2818 "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
2819 req_cnt);
2820 goto out;
2821 }
2822
2823 /* Check for room in outstanding command list. */
2824 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
9bcf0910 2825 ha->outstanding_cmds[cnt] != NULL; cnt++);
1da177e4
LT		 2826
2827 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
fd65e5e9 2828 status = SCSI_MLQUEUE_HOST_BUSY;
2b55cac3 2829 dprintk(2, "qla1280_start_scsi: NO ROOM IN "
1da177e4
LT		 2830 "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
2831 goto out;
2832 }
2833
2834 ha->outstanding_cmds[cnt] = sp;
2835 ha->req_q_cnt -= req_cnt;
2836 CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
2837
2b55cac3 2838 dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
1da177e4
LT		 2839 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
2840 dprintk(2, " bus %i, target %i, lun %i\n",
2841 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2842 qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
2843
2844 /*
2845 * Build command packet.
2846 */
2847 pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
2848
2849 pkt->entry_type = COMMAND_A64_TYPE;
2850 pkt->entry_count = (uint8_t) req_cnt;
2851 pkt->sys_define = (uint8_t) ha->req_ring_index;
2852 pkt->entry_status = 0;
2853 pkt->handle = cpu_to_le32(cnt);
2854
2855 /* Zero out remaining portion of packet. */
2856 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
2857
2858 /* Set ISP command timeout. */
242f9dcb 2859 pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ);
1da177e4
LT		 2860
2861 /* Set device target ID and LUN */
2862 pkt->lun = SCSI_LUN_32(cmd);
2863 pkt->target = SCSI_BUS_32(cmd) ?
2864 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
2865
2866 /* Enable simple tag queuing if device supports it. */
2dbb04c6 2867 if (cmd->device->simple_tags)
1da177e4
LT		 2868 pkt->control_flags |= cpu_to_le16(BIT_3);
2869
2870 /* Load SCSI command packet. */
2871 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
64a87b24 2872 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
1da177e4
LT		 2873 /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
2874
2875 /* Set transfer direction. */
2876 dir = qla1280_data_direction(cmd);
2877 pkt->control_flags |= cpu_to_le16(dir);
2878
2879 /* Set total data segment count. */
2880 pkt->dseg_count = cpu_to_le16(seg_cnt);
2881
2882 /*
2883 * Load data segments.
2884 */
2885 if (seg_cnt) { /* If data transfer. */
5c1da582 2886 struct scatterlist *sg, *s;
a0441891 2887 int remseg = seg_cnt;
5c1da582
JS		 2888
2889 sg = scsi_sglist(cmd);
2890
1da177e4
LT		 2891 /* Setup packet address segment pointer. */
2892 dword_ptr = (u32 *)&pkt->dseg_0_address;
2893
5c1da582
JS		 2894 /* Load command entry data segments. */
2895 for_each_sg(sg, s, seg_cnt, cnt) {
2896 if (cnt == 2)
2897 break;
2898
2899 dma_handle = sg_dma_address(s);
2900#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2901 if (ha->flags.use_pci_vchannel)
2902 sn_pci_set_vchan(ha->pdev,
2903 (unsigned long *)&dma_handle,
2904 SCSI_BUS_32(cmd));
2905#endif
2906 *dword_ptr++ =
f20f43c3 2907 cpu_to_le32(lower_32_bits(dma_handle));
5c1da582 2908 *dword_ptr++ =
f20f43c3 2909 cpu_to_le32(upper_32_bits(dma_handle));
5c1da582
JS		 2910 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
2911 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
f20f43c3
CH		 2912 cpu_to_le32(upper_32_bits(dma_handle)),
2913 cpu_to_le32(lower_32_bits(dma_handle)),
5c1da582
JS		 2914 cpu_to_le32(sg_dma_len(sg_next(s))));
2915 remseg--;
2916 }
2917 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
2918 "command packet data - b %i, t %i, l %i \n",
2919 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
2920 SCSI_LUN_32(cmd));
2921 qla1280_dump_buffer(5, (char *)pkt,
2922 REQUEST_ENTRY_SIZE);
2923
2924 /*
2925 * Build continuation packets.
2926 */
2927 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
2928 "remains\n", seg_cnt);
2929
2930 while (remseg > 0) {
2931 /* Update sg start */
2932 sg = s;
2933 /* Adjust ring index. */
2934 ha->req_ring_index++;
2935 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2936 ha->req_ring_index = 0;
2937 ha->request_ring_ptr =
2938 ha->request_ring;
2939 } else
2940 ha->request_ring_ptr++;
2941
2942 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
2943
2944 /* Zero out packet. */
2945 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2946
2947 /* Load packet defaults. */
2948 ((struct cont_a64_entry *) pkt)->entry_type =
2949 CONTINUE_A64_TYPE;
2950 ((struct cont_a64_entry *) pkt)->entry_count = 1;
2951 ((struct cont_a64_entry *) pkt)->sys_define =
2952 (uint8_t)ha->req_ring_index;
2953 /* Setup packet address segment pointer. */
2954 dword_ptr =
2955 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
2956
2957 /* Load continuation entry data segments. */
2958 for_each_sg(sg, s, remseg, cnt) {
2959 if (cnt == 5)
a0441891
JA		 2960 break;
2961 dma_handle = sg_dma_address(s);
1da177e4
LT		 2962#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2963 if (ha->flags.use_pci_vchannel)
2964 sn_pci_set_vchan(ha->pdev,
5c1da582 2965 (unsigned long *)&dma_handle,
1da177e4
LT		 2966 SCSI_BUS_32(cmd));
2967#endif
2968 *dword_ptr++ =
f20f43c3 2969 cpu_to_le32(lower_32_bits(dma_handle));
1da177e4 2970 *dword_ptr++ =
f20f43c3 2971 cpu_to_le32(upper_32_bits(dma_handle));
5c1da582
JS		 2972 *dword_ptr++ =
2973 cpu_to_le32(sg_dma_len(s));
2974 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
f20f43c3
CH		 2975 cpu_to_le32(upper_32_bits(dma_handle)),
2976 cpu_to_le32(lower_32_bits(dma_handle)),
5c1da582 2977 cpu_to_le32(sg_dma_len(s)));
1da177e4 2978 }
5c1da582
JS		 2979 remseg -= cnt;
2980 dprintk(5, "qla1280_64bit_start_scsi: "
2981 "continuation packet data - b %i, t "
2982 "%i, l %i \n", SCSI_BUS_32(cmd),
2983 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
1da177e4
LT		 2984 qla1280_dump_buffer(5, (char *)pkt,
2985 REQUEST_ENTRY_SIZE);
2986 }
2987 } else { /* No data transfer */
2988 dprintk(5, "qla1280_64bit_start_scsi: No data, command "
2989 "packet data - b %i, t %i, l %i \n",
2990 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2991 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
2992 }
2993 /* Adjust ring index. */
2994 ha->req_ring_index++;
2995 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2996 ha->req_ring_index = 0;
2997 ha->request_ring_ptr = ha->request_ring;
2998 } else
2999 ha->request_ring_ptr++;
3000
3001 /* Set chip new ring index. */
3002 dprintk(2,
3003 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
3004 sp->flags |= SRB_SENT;
3005 ha->actthreads++;
3006 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3007 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3008 mmiowb();
3009
3010 out:
3011 if (status)
3012 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
3013 else
3014 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
3015
3016 return status;
3017}
3018#else /* !QLA_64BIT_PTR */
3019
3020/*
3021 * qla1280_32bit_start_scsi
3022 * The start SCSI is responsible for building request packets on
3023 * request ring and modifying ISP input pointer.
3024 *
3025 * The Qlogic firmware interface allows every queue slot to have a SCSI
3026 * command and up to 4 scatter/gather (SG) entries. If we need more
3027 * than 4 SG entries, then continuation entries are used that can
3028 * hold another 7 entries each. The start routine determines if there
3029 * is eought empty slots then build the combination of requests to
3030 * fulfill the OS request.
3031 *
3032 * Input:
3033 * ha = adapter block pointer.
3034 * sp = SCSI Request Block structure pointer.
3035 *
3036 * Returns:
3037 * 0 = success, was able to issue command.
3038 */
3039static int
3040qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
3041{
3042 struct device_reg __iomem *reg = ha->iobase;
3043 struct scsi_cmnd *cmd = sp->cmd;
3044 struct cmd_entry *pkt;
8d6810d3 3045 __le32 *dword_ptr;
1da177e4
LT		 3046 int status = 0;
3047 int cnt;
3048 int req_cnt;
5c1da582 3049 int seg_cnt;
1da177e4
LT		 3050 u8 dir;
3051
3052 ENTER("qla1280_32bit_start_scsi");
3053
3054 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
3055 cmd->cmnd[0]);
3056
3057 /* Calculate number of entries and segments required. */
3a43e69c 3058 req_cnt = 1;
5c1da582
JS		 3059 seg_cnt = scsi_dma_map(cmd);
3060 if (seg_cnt) {
1da177e4
LT		 3061 /*
3062 * if greater than four sg entries then we need to allocate
3063 * continuation entries
3064 */
3065 if (seg_cnt > 4) {
3066 req_cnt += (seg_cnt - 4) / 7;
3067 if ((seg_cnt - 4) % 7)
3068 req_cnt++;
3069 }
3070 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
3071 cmd, seg_cnt, req_cnt);
5c1da582
JS		 3072 } else if (seg_cnt < 0) {
3073 status = 1;
3074 goto out;
1da177e4
LT		 3075 }
3076
3077 if ((req_cnt + 2) >= ha->req_q_cnt) {
3078 /* Calculate number of free request entries. */
3079 cnt = RD_REG_WORD(&reg->mailbox4);
3080 if (ha->req_ring_index < cnt)
3081 ha->req_q_cnt = cnt - ha->req_ring_index;
3082 else
3083 ha->req_q_cnt =
3084 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3085 }
3086
3087 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
3088 ha->req_q_cnt, seg_cnt);
3089 /* If room for request in request ring. */
3090 if ((req_cnt + 2) >= ha->req_q_cnt) {
fd65e5e9 3091 status = SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 3092 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
3093 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
3094 ha->req_q_cnt, req_cnt);
3095 goto out;
3096 }
3097
3098 /* Check for empty slot in outstanding command list. */
3099 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3100 (ha->outstanding_cmds[cnt] != 0); cnt++) ;
3101
3102 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
fd65e5e9 3103 status = SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 3104 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
3105 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
3106 goto out;
3107 }
3108
3109 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
3110 ha->outstanding_cmds[cnt] = sp;
3111 ha->req_q_cnt -= req_cnt;
3112
3113 /*
3114 * Build command packet.
3115 */
3116 pkt = (struct cmd_entry *) ha->request_ring_ptr;
3117
3118 pkt->entry_type = COMMAND_TYPE;
3119 pkt->entry_count = (uint8_t) req_cnt;
3120 pkt->sys_define = (uint8_t) ha->req_ring_index;
3121 pkt->entry_status = 0;
3122 pkt->handle = cpu_to_le32(cnt);
3123
3124 /* Zero out remaining portion of packet. */
3125 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3126
3127 /* Set ISP command timeout. */
242f9dcb 3128 pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ);
1da177e4
LT		 3129
3130 /* Set device target ID and LUN */
3131 pkt->lun = SCSI_LUN_32(cmd);
3132 pkt->target = SCSI_BUS_32(cmd) ?
3133 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3134
3135 /* Enable simple tag queuing if device supports it. */
2dbb04c6 3136 if (cmd->device->simple_tags)
1da177e4
LT		 3137 pkt->control_flags |= cpu_to_le16(BIT_3);
3138
3139 /* Load SCSI command packet. */
3140 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
64a87b24 3141 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
1da177e4
LT		 3142
3143 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3144 /* Set transfer direction. */
3145 dir = qla1280_data_direction(cmd);
3146 pkt->control_flags |= cpu_to_le16(dir);
3147
3148 /* Set total data segment count. */
3149 pkt->dseg_count = cpu_to_le16(seg_cnt);
3150
3151 /*
3152 * Load data segments.
3153 */
3154 if (seg_cnt) {
5c1da582 3155 struct scatterlist *sg, *s;
a0441891 3156 int remseg = seg_cnt;
5c1da582
JS		 3157
3158 sg = scsi_sglist(cmd);
3159
1da177e4
LT		 3160 /* Setup packet address segment pointer. */
3161 dword_ptr = &pkt->dseg_0_address;
3162
5c1da582
JS		 3163 dprintk(3, "Building S/G data segments..\n");
3164 qla1280_dump_buffer(1, (char *)sg, 4 * 16);
3165
3166 /* Load command entry data segments. */
3167 for_each_sg(sg, s, seg_cnt, cnt) {
3168 if (cnt == 4)
3169 break;
3170 *dword_ptr++ =
f20f43c3 3171 cpu_to_le32(lower_32_bits(sg_dma_address(s)));
5c1da582
JS		 3172 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
3173 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
f20f43c3 3174 (lower_32_bits(sg_dma_address(s))),
5c1da582
JS		 3175 (sg_dma_len(s)));
3176 remseg--;
3177 }
3178 /*
3179 * Build continuation packets.
3180 */
3181 dprintk(3, "S/G Building Continuation"
3182 "...seg_cnt=0x%x remains\n", seg_cnt);
3183 while (remseg > 0) {
3184 /* Continue from end point */
3185 sg = s;
3186 /* Adjust ring index. */
3187 ha->req_ring_index++;
3188 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3189 ha->req_ring_index = 0;
3190 ha->request_ring_ptr =
3191 ha->request_ring;
3192 } else
3193 ha->request_ring_ptr++;
3194
3195 pkt = (struct cmd_entry *)ha->request_ring_ptr;
3196
3197 /* Zero out packet. */
3198 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3199
3200 /* Load packet defaults. */
3201 ((struct cont_entry *) pkt)->
3202 entry_type = CONTINUE_TYPE;
3203 ((struct cont_entry *) pkt)->entry_count = 1;
3204
3205 ((struct cont_entry *) pkt)->sys_define =
3206 (uint8_t) ha->req_ring_index;
1da177e4 3207
5c1da582
JS		 3208 /* Setup packet address segment pointer. */
3209 dword_ptr =
3210 &((struct cont_entry *) pkt)->dseg_0_address;
3211
3212 /* Load continuation entry data segments. */
3213 for_each_sg(sg, s, remseg, cnt) {
3214 if (cnt == 7)
a0441891 3215 break;
1da177e4 3216 *dword_ptr++ =
f20f43c3 3217 cpu_to_le32(lower_32_bits(sg_dma_address(s)));
5c1da582
JS		 3218 *dword_ptr++ =
3219 cpu_to_le32(sg_dma_len(s));
3220 dprintk(1,
3221 "S/G Segment Cont. phys_addr=0x%x, "
3222 "len=0x%x\n",
f20f43c3 3223 cpu_to_le32(lower_32_bits(sg_dma_address(s))),
5c1da582 3224 cpu_to_le32(sg_dma_len(s)));
1da177e4 3225 }
5c1da582
JS		 3226 remseg -= cnt;
3227 dprintk(5, "qla1280_32bit_start_scsi: "
3228 "continuation packet data - "
3229 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
3230 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3231 qla1280_dump_buffer(5, (char *)pkt,
3232 REQUEST_ENTRY_SIZE);
1da177e4
LT		 3233 }
3234 } else { /* No data transfer at all */
3235 dprintk(5, "qla1280_32bit_start_scsi: No data, command "
3236 "packet data - \n");
3237 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3238 }
3239 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
3240 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3241 REQUEST_ENTRY_SIZE);
3242
3243 /* Adjust ring index. */
3244 ha->req_ring_index++;
3245 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3246 ha->req_ring_index = 0;
3247 ha->request_ring_ptr = ha->request_ring;
3248 } else
3249 ha->request_ring_ptr++;
3250
3251 /* Set chip new ring index. */
3252 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
3253 "for pending command\n");
3254 sp->flags |= SRB_SENT;
3255 ha->actthreads++;
3256 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3257 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3258 mmiowb();
3259
3260out:
3261 if (status)
3262 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
3263
3264 LEAVE("qla1280_32bit_start_scsi");
3265
3266 return status;
3267}
3268#endif
3269
3270/*
3271 * qla1280_req_pkt
3272 * Function is responsible for locking ring and
3273 * getting a zeroed out request packet.
3274 *
3275 * Input:
3276 * ha = adapter block pointer.
3277 *
3278 * Returns:
3279 * 0 = failed to get slot.
3280 */
3281static request_t *
3282qla1280_req_pkt(struct scsi_qla_host *ha)
3283{
3284 struct device_reg __iomem *reg = ha->iobase;
3285 request_t *pkt = NULL;
3286 int cnt;
3287 uint32_t timer;
3288
3289 ENTER("qla1280_req_pkt");
3290
3291 /*
3292 * This can be called from interrupt context, damn it!!!
3293 */
3294 /* Wait for 30 seconds for slot. */
3295 for (timer = 15000000; timer; timer--) {
3296 if (ha->req_q_cnt > 0) {
3297 /* Calculate number of free request entries. */
3298 cnt = RD_REG_WORD(&reg->mailbox4);
3299 if (ha->req_ring_index < cnt)
3300 ha->req_q_cnt = cnt - ha->req_ring_index;
3301 else
3302 ha->req_q_cnt =
3303 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3304 }
3305
3306 /* Found empty request ring slot? */
3307 if (ha->req_q_cnt > 0) {
3308 ha->req_q_cnt--;
3309 pkt = ha->request_ring_ptr;
3310
3311 /* Zero out packet. */
3312 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3313
3314 /*
3315 * How can this be right when we have a ring
3316 * size of 512???
3317 */
3318 /* Set system defined field. */
3319 pkt->sys_define = (uint8_t) ha->req_ring_index;
3320
3321 /* Set entry count. */
3322 pkt->entry_count = 1;
3323
3324 break;
3325 }
3326
3327 udelay(2); /* 10 */
3328
3329 /* Check for pending interrupts. */
3330 qla1280_poll(ha);
3331 }
3332
3333 if (!pkt)
3334 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
3335 else
3336 dprintk(3, "qla1280_req_pkt: exiting normally\n");
3337
3338 return pkt;
3339}
3340
3341/*
3342 * qla1280_isp_cmd
3343 * Function is responsible for modifying ISP input pointer.
3344 * Releases ring lock.
3345 *
3346 * Input:
3347 * ha = adapter block pointer.
3348 */
3349static void
3350qla1280_isp_cmd(struct scsi_qla_host *ha)
3351{
3352 struct device_reg __iomem *reg = ha->iobase;
3353
3354 ENTER("qla1280_isp_cmd");
3355
3356 dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
3357 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3358 REQUEST_ENTRY_SIZE);
3359
3360 /* Adjust ring index. */
3361 ha->req_ring_index++;
3362 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3363 ha->req_ring_index = 0;
3364 ha->request_ring_ptr = ha->request_ring;
3365 } else
3366 ha->request_ring_ptr++;
3367
3368 /*
3369 * Update request index to mailbox4 (Request Queue In).
3370 * The mmiowb() ensures that this write is ordered with writes by other
3371 * CPUs. Without the mmiowb(), it is possible for the following:
3372 * CPUA posts write of index 5 to mailbox4
3373 * CPUA releases host lock
3374 * CPUB acquires host lock
3375 * CPUB posts write of index 6 to mailbox4
3376 * On PCI bus, order reverses and write of 6 posts, then index 5,
3377 * causing chip to issue full queue of stale commands
3378 * The mmiowb() prevents future writes from crossing the barrier.
2a762130 3379 * See Documentation/driver-api/device-io.rst for more information.
1da177e4
LT		 3380 */
3381 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3382 mmiowb();
3383
3384 LEAVE("qla1280_isp_cmd");
3385}
3386
3387/****************************************************************************/
3388/* Interrupt Service Routine. */
3389/****************************************************************************/
3390
3391/****************************************************************************
3392 * qla1280_isr
3393 * Calls I/O done on command completion.
3394 *
3395 * Input:
3396 * ha = adapter block pointer.
3397 * done_q = done queue.
3398 ****************************************************************************/
3399static void
3400qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
3401{
3402 struct device_reg __iomem *reg = ha->iobase;
3403 struct response *pkt;
3404 struct srb *sp = NULL;
3405 uint16_t mailbox[MAILBOX_REGISTER_COUNT];
3406 uint16_t *wptr;
3407 uint32_t index;
3408 u16 istatus;
3409
3410 ENTER("qla1280_isr");
3411
3412 istatus = RD_REG_WORD(&reg->istatus);
3413 if (!(istatus & (RISC_INT | PCI_INT)))
3414 return;
3415
3416 /* Save mailbox register 5 */
3417 mailbox[5] = RD_REG_WORD(&reg->mailbox5);
3418
3419 /* Check for mailbox interrupt. */
3420
3421 mailbox[0] = RD_REG_WORD_dmasync(&reg->semaphore);
3422
3423 if (mailbox[0] & BIT_0) {
3424 /* Get mailbox data. */
3425 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
3426
3427 wptr = &mailbox[0];
3428 *wptr++ = RD_REG_WORD(&reg->mailbox0);
3429 *wptr++ = RD_REG_WORD(&reg->mailbox1);
3430 *wptr = RD_REG_WORD(&reg->mailbox2);
3431 if (mailbox[0] != MBA_SCSI_COMPLETION) {
3432 wptr++;
3433 *wptr++ = RD_REG_WORD(&reg->mailbox3);
3434 *wptr++ = RD_REG_WORD(&reg->mailbox4);
3435 wptr++;
3436 *wptr++ = RD_REG_WORD(&reg->mailbox6);
3437 *wptr = RD_REG_WORD(&reg->mailbox7);
3438 }
3439
3440 /* Release mailbox registers. */
3441
3442 WRT_REG_WORD(&reg->semaphore, 0);
3443 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
3444
3445 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
3446 mailbox[0]);
3447
3448 /* Handle asynchronous event */
3449 switch (mailbox[0]) {
3450 case MBA_SCSI_COMPLETION: /* Response completion */
3451 dprintk(5, "qla1280_isr: mailbox SCSI response "
3452 "completion\n");
3453
3454 if (ha->flags.online) {
3455 /* Get outstanding command index. */
3456 index = mailbox[2] << 16 | mailbox[1];
3457
3458 /* Validate handle. */
3459 if (index < MAX_OUTSTANDING_COMMANDS)
3460 sp = ha->outstanding_cmds[index];
3461 else
3462 sp = NULL;
3463
3464 if (sp) {
3465 /* Free outstanding command slot. */
3466 ha->outstanding_cmds[index] = NULL;
3467
3468 /* Save ISP completion status */
3469 CMD_RESULT(sp->cmd) = 0;
413e6e18 3470 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
1da177e4
LT		 3471
3472 /* Place block on done queue */
3473 list_add_tail(&sp->list, done_q);
3474 } else {
3475 /*
3476 * If we get here we have a real problem!
3477 */
3478 printk(KERN_WARNING
fd65e5e9 3479 "qla1280: ISP invalid handle\n");
1da177e4
LT		 3480 }
3481 }
3482 break;
3483
3484 case MBA_BUS_RESET: /* SCSI Bus Reset */
3485 ha->flags.reset_marker = 1;
3486 index = mailbox[6] & BIT_0;
3487 ha->bus_settings[index].reset_marker = 1;
3488
3489 printk(KERN_DEBUG "qla1280_isr(): index %i "
3490 "asynchronous BUS_RESET\n", index);
3491 break;
3492
3493 case MBA_SYSTEM_ERR: /* System Error */
3494 printk(KERN_WARNING
3495 "qla1280: ISP System Error - mbx1=%xh, mbx2="
3496 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
3497 mailbox[3]);
3498 break;
3499
3500 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
3501 printk(KERN_WARNING
3502 "qla1280: ISP Request Transfer Error\n");
3503 break;
3504
3505 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
3506 printk(KERN_WARNING
3507 "qla1280: ISP Response Transfer Error\n");
3508 break;
3509
3510 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
3511 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
3512 break;
3513
3514 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */
3515 dprintk(2,
3516 "qla1280_isr: asynchronous TIMEOUT_RESET\n");
3517 break;
3518
3519 case MBA_DEVICE_RESET: /* Bus Device Reset */
3520 printk(KERN_INFO "qla1280_isr(): asynchronous "
3521 "BUS_DEVICE_RESET\n");
3522
3523 ha->flags.reset_marker = 1;
3524 index = mailbox[6] & BIT_0;
3525 ha->bus_settings[index].reset_marker = 1;
3526 break;
3527
3528 case MBA_BUS_MODE_CHANGE:
3529 dprintk(2,
3530 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
3531 break;
3532
3533 default:
3534 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
3535 if (mailbox[0] < MBA_ASYNC_EVENT) {
3536 wptr = &mailbox[0];
3537 memcpy((uint16_t *) ha->mailbox_out, wptr,
3538 MAILBOX_REGISTER_COUNT *
3539 sizeof(uint16_t));
3540
3541 if(ha->mailbox_wait != NULL)
3542 complete(ha->mailbox_wait);
3543 }
3544 break;
3545 }
3546 } else {
3547 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
3548 }
3549
3550 /*
3551 * We will receive interrupts during mailbox testing prior to
3552 * the card being marked online, hence the double check.
3553 */
3554 if (!(ha->flags.online && !ha->mailbox_wait)) {
3555 dprintk(2, "qla1280_isr: Response pointer Error\n");
3556 goto out;
3557 }
3558
3559 if (mailbox[5] >= RESPONSE_ENTRY_CNT)
3560 goto out;
3561
3562 while (ha->rsp_ring_index != mailbox[5]) {
3563 pkt = ha->response_ring_ptr;
3564
3565 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
3566 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
3567 dprintk(5,"qla1280_isr: response packet data\n");
3568 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
3569
3570 if (pkt->entry_type == STATUS_TYPE) {
3571 if ((le16_to_cpu(pkt->scsi_status) & 0xff)
3572 || pkt->comp_status || pkt->entry_status) {
3573 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3574 "0x%x mailbox[5] = 0x%x, comp_status "
3575 "= 0x%x, scsi_status = 0x%x\n",
3576 ha->rsp_ring_index, mailbox[5],
3577 le16_to_cpu(pkt->comp_status),
3578 le16_to_cpu(pkt->scsi_status));
3579 }
3580 } else {
3581 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3582 "0x%x, mailbox[5] = 0x%x\n",
3583 ha->rsp_ring_index, mailbox[5]);
3584 dprintk(2, "qla1280_isr: response packet data\n");
3585 qla1280_dump_buffer(2, (char *)pkt,
3586 RESPONSE_ENTRY_SIZE);
3587 }
3588
3589 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
3590 dprintk(2, "status: Cmd %p, handle %i\n",
3591 ha->outstanding_cmds[pkt->handle]->cmd,
3592 pkt->handle);
3593 if (pkt->entry_type == STATUS_TYPE)
3594 qla1280_status_entry(ha, pkt, done_q);
3595 else
3596 qla1280_error_entry(ha, pkt, done_q);
3597 /* Adjust ring index. */
3598 ha->rsp_ring_index++;
3599 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
3600 ha->rsp_ring_index = 0;
3601 ha->response_ring_ptr = ha->response_ring;
3602 } else
3603 ha->response_ring_ptr++;
3604 WRT_REG_WORD(&reg->mailbox5, ha->rsp_ring_index);
3605 }
3606 }
3607
3608 out:
3609 LEAVE("qla1280_isr");
3610}
3611
3612/*
3613 * qla1280_rst_aen
3614 * Processes asynchronous reset.
3615 *
3616 * Input:
3617 * ha = adapter block pointer.
3618 */
3619static void
3620qla1280_rst_aen(struct scsi_qla_host *ha)
3621{
3622 uint8_t bus;
3623
3624 ENTER("qla1280_rst_aen");
3625
3626 if (ha->flags.online && !ha->flags.reset_active &&
3627 !ha->flags.abort_isp_active) {
3628 ha->flags.reset_active = 1;
3629 while (ha->flags.reset_marker) {
3630 /* Issue marker command. */
3631 ha->flags.reset_marker = 0;
3632 for (bus = 0; bus < ha->ports &&
3633 !ha->flags.reset_marker; bus++) {
3634 if (ha->bus_settings[bus].reset_marker) {
3635 ha->bus_settings[bus].reset_marker = 0;
3636 qla1280_marker(ha, bus, 0, 0,
3637 MK_SYNC_ALL);
3638 }
3639 }
3640 }
3641 }
3642
3643 LEAVE("qla1280_rst_aen");
3644}
3645
3646
1da177e4
LT		 3647/*
3648 * qla1280_status_entry
3649 * Processes received ISP status entry.
3650 *
3651 * Input:
3652 * ha = adapter block pointer.
3653 * pkt = entry pointer.
3654 * done_q = done queue.
3655 */
3656static void
3657qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
3658 struct list_head *done_q)
3659{
3660 unsigned int bus, target, lun;
3661 int sense_sz;
3662 struct srb *sp;
3663 struct scsi_cmnd *cmd;
3664 uint32_t handle = le32_to_cpu(pkt->handle);
3665 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
3666 uint16_t comp_status = le16_to_cpu(pkt->comp_status);
3667
3668 ENTER("qla1280_status_entry");
3669
3670 /* Validate handle. */
3671 if (handle < MAX_OUTSTANDING_COMMANDS)
3672 sp = ha->outstanding_cmds[handle];
3673 else
3674 sp = NULL;
3675
3676 if (!sp) {
3677 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
3678 goto out;
3679 }
3680
3681 /* Free outstanding command slot. */
3682 ha->outstanding_cmds[handle] = NULL;
3683
3684 cmd = sp->cmd;
3685
3686 /* Generate LU queue on cntrl, target, LUN */
3687 bus = SCSI_BUS_32(cmd);
3688 target = SCSI_TCN_32(cmd);
3689 lun = SCSI_LUN_32(cmd);
3690
3691 if (comp_status || scsi_status) {
3692 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
3693 "0x%x, handle = 0x%x\n", comp_status,
3694 scsi_status, handle);
3695 }
3696
7d0e11fb
JH		 3697 /* Target busy or queue full */
3698 if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL ||
3699 (scsi_status & 0xFF) == SAM_STAT_BUSY) {
3700 CMD_RESULT(cmd) = scsi_status & 0xff;
1da177e4
LT		 3701 } else {
3702
3703 /* Save ISP completion status */
3704 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
3705
d6db3e8d 3706 if (scsi_status & SAM_STAT_CHECK_CONDITION) {
1da177e4
LT		 3707 if (comp_status != CS_ARS_FAILED) {
3708 uint16_t req_sense_length =
3709 le16_to_cpu(pkt->req_sense_length);
3710 if (req_sense_length < CMD_SNSLEN(cmd))
3711 sense_sz = req_sense_length;
3712 else
3713 /*
3714 * scsi_cmnd->sense_buffer is
3715 * 64 bytes, why only copy 63?
3716 * This looks wrong! /Jes
3717 */
3718 sense_sz = CMD_SNSLEN(cmd) - 1;
3719
3720 memcpy(cmd->sense_buffer,
3721 &pkt->req_sense_data, sense_sz);
3722 } else
3723 sense_sz = 0;
3724 memset(cmd->sense_buffer + sense_sz, 0,
b80ca4f7 3725 SCSI_SENSE_BUFFERSIZE - sense_sz);
1da177e4
LT		 3726
3727 dprintk(2, "qla1280_status_entry: Check "
3728 "condition Sense data, b %i, t %i, "
3729 "l %i\n", bus, target, lun);
3730 if (sense_sz)
3731 qla1280_dump_buffer(2,
3732 (char *)cmd->sense_buffer,
3733 sense_sz);
3734 }
3735 }
3736
413e6e18
MR		 3737 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3738
1da177e4
LT		 3739 /* Place command on done queue. */
3740 list_add_tail(&sp->list, done_q);
3741 out:
3742 LEAVE("qla1280_status_entry");
3743}
3744
3745/*
3746 * qla1280_error_entry
3747 * Processes error entry.
3748 *
3749 * Input:
3750 * ha = adapter block pointer.
3751 * pkt = entry pointer.
3752 * done_q = done queue.
3753 */
3754static void
3755qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
3756 struct list_head *done_q)
3757{
3758 struct srb *sp;
3759 uint32_t handle = le32_to_cpu(pkt->handle);
3760
3761 ENTER("qla1280_error_entry");
3762
3763 if (pkt->entry_status & BIT_3)
3764 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
3765 else if (pkt->entry_status & BIT_2)
3766 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
3767 else if (pkt->entry_status & BIT_1)
3768 dprintk(2, "qla1280_error_entry: FULL flag error\n");
3769 else
3770 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
3771
3772 /* Validate handle. */
3773 if (handle < MAX_OUTSTANDING_COMMANDS)
3774 sp = ha->outstanding_cmds[handle];
3775 else
3776 sp = NULL;
3777
3778 if (sp) {
3779 /* Free outstanding command slot. */
3780 ha->outstanding_cmds[handle] = NULL;
3781
3782 /* Bad payload or header */
3783 if (pkt->entry_status & (BIT_3 + BIT_2)) {
3784 /* Bad payload or header, set error status. */
3785 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
3786 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3787 } else if (pkt->entry_status & BIT_1) { /* FULL flag */
3788 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
3789 } else {
3790 /* Set error status. */
3791 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3792 }
3793
413e6e18
MR		 3794 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3795
1da177e4
LT		 3796 /* Place command on done queue. */
3797 list_add_tail(&sp->list, done_q);
3798 }
3799#ifdef QLA_64BIT_PTR
3800 else if (pkt->entry_type == COMMAND_A64_TYPE) {
3801 printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
3802 }
3803#endif
3804
3805 LEAVE("qla1280_error_entry");
3806}
3807
3808/*
3809 * qla1280_abort_isp
3810 * Resets ISP and aborts all outstanding commands.
3811 *
3812 * Input:
3813 * ha = adapter block pointer.
3814 *
3815 * Returns:
3816 * 0 = success
3817 */
3818static int
3819qla1280_abort_isp(struct scsi_qla_host *ha)
3820{
3821 struct device_reg __iomem *reg = ha->iobase;
3822 struct srb *sp;
3823 int status = 0;
3824 int cnt;
3825 int bus;
3826
3827 ENTER("qla1280_abort_isp");
3828
3829 if (ha->flags.abort_isp_active || !ha->flags.online)
3830 goto out;
3831
3832 ha->flags.abort_isp_active = 1;
3833
3834 /* Disable ISP interrupts. */
3835 qla1280_disable_intrs(ha);
3836 WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
3837 RD_REG_WORD(&reg->id_l);
3838
3839 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
3840 ha->host_no);
3841 /* Dequeue all commands in outstanding command list. */
3842 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3843 struct scsi_cmnd *cmd;
3844 sp = ha->outstanding_cmds[cnt];
3845 if (sp) {
1da177e4
LT		 3846 cmd = sp->cmd;
3847 CMD_RESULT(cmd) = DID_RESET << 16;
413e6e18 3848 CMD_HANDLE(cmd) = COMPLETED_HANDLE;
1da177e4 3849 ha->outstanding_cmds[cnt] = NULL;
413e6e18 3850 list_add_tail(&sp->list, &ha->done_q);
1da177e4
LT		 3851 }
3852 }
3853
413e6e18
MR		 3854 qla1280_done(ha);
3855
1da177e4
LT		 3856 status = qla1280_load_firmware(ha);
3857 if (status)
3858 goto out;
3859
3860 /* Setup adapter based on NVRAM parameters. */
3861 qla1280_nvram_config (ha);
3862
3863 status = qla1280_init_rings(ha);
3864 if (status)
3865 goto out;
3866
3867 /* Issue SCSI reset. */
3868 for (bus = 0; bus < ha->ports; bus++)
3869 qla1280_bus_reset(ha, bus);
3870
3871 ha->flags.abort_isp_active = 0;
3872 out:
3873 if (status) {
3874 printk(KERN_WARNING
3875 "qla1280: ISP error recovery failed, board disabled");
3876 qla1280_reset_adapter(ha);
3877 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
3878 }
3879
3880 LEAVE("qla1280_abort_isp");
3881 return status;
3882}
3883
3884
3885/*
3886 * qla1280_debounce_register
3887 * Debounce register.
3888 *
3889 * Input:
3890 * port = register address.
3891 *
3892 * Returns:
3893 * register value.
3894 */
3895static u16
3896qla1280_debounce_register(volatile u16 __iomem * addr)
3897{
3898 volatile u16 ret;
3899 volatile u16 ret2;
3900
3901 ret = RD_REG_WORD(addr);
3902 ret2 = RD_REG_WORD(addr);
3903
3904 if (ret == ret2)
3905 return ret;
3906
3907 do {
3908 cpu_relax();
3909 ret = RD_REG_WORD(addr);
3910 ret2 = RD_REG_WORD(addr);
3911 } while (ret != ret2);
3912
3913 return ret;
3914}
3915
3916
3917/************************************************************************
3918 * qla1280_check_for_dead_scsi_bus *
3919 * *
3920 * This routine checks for a dead SCSI bus *
3921 ************************************************************************/
3922#define SET_SXP_BANK 0x0100
3923#define SCSI_PHASE_INVALID 0x87FF
3924static int
3925qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
3926{
3927 uint16_t config_reg, scsi_control;
3928 struct device_reg __iomem *reg = ha->iobase;
3929
3930 if (ha->bus_settings[bus].scsi_bus_dead) {
3931 WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
3932 config_reg = RD_REG_WORD(&reg->cfg_1);
3933 WRT_REG_WORD(&reg->cfg_1, SET_SXP_BANK);
3934 scsi_control = RD_REG_WORD(&reg->scsiControlPins);
3935 WRT_REG_WORD(&reg->cfg_1, config_reg);
3936 WRT_REG_WORD(&reg->host_cmd, HC_RELEASE_RISC);
3937
3938 if (scsi_control == SCSI_PHASE_INVALID) {
3939 ha->bus_settings[bus].scsi_bus_dead = 1;
1da177e4
LT		 3940 return 1; /* bus is dead */
3941 } else {
3942 ha->bus_settings[bus].scsi_bus_dead = 0;
3943 ha->bus_settings[bus].failed_reset_count = 0;
3944 }
3945 }
3946 return 0; /* bus is not dead */
3947}
3948
3949static void
3950qla1280_get_target_parameters(struct scsi_qla_host *ha,
3951 struct scsi_device *device)
3952{
3953 uint16_t mb[MAILBOX_REGISTER_COUNT];
3954 int bus, target, lun;
3955
3956 bus = device->channel;
3957 target = device->id;
3958 lun = device->lun;
3959
3960
3961 mb[0] = MBC_GET_TARGET_PARAMETERS;
3962 mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
3963 mb[1] <<= 8;
3964 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
3965 &mb[0]);
3966
3967 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
3968
3969 if (mb[3] != 0) {
3970 printk(" Sync: period %d, offset %d",
3971 (mb[3] & 0xff), (mb[3] >> 8));
3972 if (mb[2] & BIT_13)
3973 printk(", Wide");
3974 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
3975 printk(", DT");
3976 } else
3977 printk(" Async");
3978
2dbb04c6 3979 if (device->simple_tags)
1da177e4
LT		 3980 printk(", Tagged queuing: depth %d", device->queue_depth);
3981 printk("\n");
3982}
3983
3984
3985#if DEBUG_QLA1280
3986static void
3987__qla1280_dump_buffer(char *b, int size)
3988{
3989 int cnt;
3990 u8 c;
3991
3992 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah "
3993 "Bh Ch Dh Eh Fh\n");
3994 printk(KERN_DEBUG "---------------------------------------------"
3995 "------------------\n");
3996
3997 for (cnt = 0; cnt < size;) {
3998 c = *b++;
3999
4000 printk("0x%02x", c);
4001 cnt++;
4002 if (!(cnt % 16))
4003 printk("\n");
4004 else
4005 printk(" ");
4006 }
4007 if (cnt % 16)
4008 printk("\n");
4009}
4010
4011/**************************************************************************
4012 * ql1280_print_scsi_cmd
4013 *
4014 **************************************************************************/
4015static void
4016__qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
4017{
4018 struct scsi_qla_host *ha;
4019 struct Scsi_Host *host = CMD_HOST(cmd);
4020 struct srb *sp;
4021 /* struct scatterlist *sg; */
4022
4023 int i;
4024 ha = (struct scsi_qla_host *)host->hostdata;
4025
4026 sp = (struct srb *)CMD_SP(cmd);
4027 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
4028 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
4029 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
4030 CMD_CDBLEN(cmd));
4031 printk(" CDB = ");
4032 for (i = 0; i < cmd->cmd_len; i++) {
4033 printk("0x%02x ", cmd->cmnd[i]);
4034 }
5c1da582 4035 printk(" seg_cnt =%d\n", scsi_sg_count(cmd));
1da177e4 4036 printk(" request buffer=0x%p, request buffer len=0x%x\n",
5c1da582 4037 scsi_sglist(cmd), scsi_bufflen(cmd));
1da177e4
LT		 4038 /* if (cmd->use_sg)
4039 {
4040 sg = (struct scatterlist *) cmd->request_buffer;
4041 printk(" SG buffer: \n");
4042 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
4043 } */
4044 printk(" tag=%d, transfersize=0x%x \n",
4045 cmd->tag, cmd->transfersize);
5cd049a5 4046 printk(" SP=0x%p\n", CMD_SP(cmd));
1da177e4
LT		 4047 printk(" underflow size = 0x%x, direction=0x%x\n",
4048 cmd->underflow, cmd->sc_data_direction);
4049}
4050
4051/**************************************************************************
4052 * ql1280_dump_device
4053 *
4054 **************************************************************************/
4055static void
4056ql1280_dump_device(struct scsi_qla_host *ha)
4057{
4058
4059 struct scsi_cmnd *cp;
4060 struct srb *sp;
4061 int i;
4062
4063 printk(KERN_DEBUG "Outstanding Commands on controller:\n");
4064
4065 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
4066 if ((sp = ha->outstanding_cmds[i]) == NULL)
4067 continue;
4068 if ((cp = sp->cmd) == NULL)
4069 continue;
4070 qla1280_print_scsi_cmd(1, cp);
4071 }
4072}
4073#endif
4074
4075
4076enum tokens {
4077 TOKEN_NVRAM,
4078 TOKEN_SYNC,
4079 TOKEN_WIDE,
4080 TOKEN_PPR,
4081 TOKEN_VERBOSE,
4082 TOKEN_DEBUG,
4083};
4084
4085struct setup_tokens {
4086 char *token;
4087 int val;
4088};
4089
4090static struct setup_tokens setup_token[] __initdata =
4091{
4092 { "nvram", TOKEN_NVRAM },
4093 { "sync", TOKEN_SYNC },
4094 { "wide", TOKEN_WIDE },
4095 { "ppr", TOKEN_PPR },
4096 { "verbose", TOKEN_VERBOSE },
4097 { "debug", TOKEN_DEBUG },
4098};
4099
4100
4101/**************************************************************************
4102 * qla1280_setup
4103 *
4104 * Handle boot parameters. This really needs to be changed so one
4105 * can specify per adapter parameters.
4106 **************************************************************************/
4107static int __init
4108qla1280_setup(char *s)
4109{
4110 char *cp, *ptr;
4111 unsigned long val;
4112 int toke;
4113
4114 cp = s;
4115
4116 while (cp && (ptr = strchr(cp, ':'))) {
4117 ptr++;
4118 if (!strcmp(ptr, "yes")) {
4119 val = 0x10000;
4120 ptr += 3;
4121 } else if (!strcmp(ptr, "no")) {
4122 val = 0;
4123 ptr += 2;
4124 } else
4125 val = simple_strtoul(ptr, &ptr, 0);
4126
4127 switch ((toke = qla1280_get_token(cp))) {
4128 case TOKEN_NVRAM:
4129 if (!val)
4130 driver_setup.no_nvram = 1;
4131 break;
4132 case TOKEN_SYNC:
4133 if (!val)
4134 driver_setup.no_sync = 1;
4135 else if (val != 0x10000)
4136 driver_setup.sync_mask = val;
4137 break;
4138 case TOKEN_WIDE:
4139 if (!val)
4140 driver_setup.no_wide = 1;
4141 else if (val != 0x10000)
4142 driver_setup.wide_mask = val;
4143 break;
4144 case TOKEN_PPR:
4145 if (!val)
4146 driver_setup.no_ppr = 1;
4147 else if (val != 0x10000)
4148 driver_setup.ppr_mask = val;
4149 break;
4150 case TOKEN_VERBOSE:
4151 qla1280_verbose = val;
4152 break;
4153 default:
4154 printk(KERN_INFO "qla1280: unknown boot option %s\n",
4155 cp);
4156 }
4157
4158 cp = strchr(ptr, ';');
4159 if (cp)
4160 cp++;
4161 else {
4162 break;
4163 }
4164 }
4165 return 1;
4166}
4167
4168
f58f8313 4169static int __init
1da177e4
LT		 4170qla1280_get_token(char *str)
4171{
4172 char *sep;
4173 long ret = -1;
6391a113 4174 int i;
1da177e4
LT		 4175
4176 sep = strchr(str, ':');
4177
4178 if (sep) {
6391a113 4179 for (i = 0; i < ARRAY_SIZE(setup_token); i++) {
1da177e4
LT		 4180 if (!strncmp(setup_token[i].token, str, (sep - str))) {
4181 ret = setup_token[i].val;
4182 break;
4183 }
4184 }
4185 }
4186
4187 return ret;
4188}
4189
2dbb04c6 4190
1da177e4
LT		 4191static struct scsi_host_template qla1280_driver_template = {
4192 .module = THIS_MODULE,
4193 .proc_name = "qla1280",
4194 .name = "Qlogic ISP 1280/12160",
4195 .info = qla1280_info,
4196 .slave_configure = qla1280_slave_configure,
4197 .queuecommand = qla1280_queuecommand,
4198 .eh_abort_handler = qla1280_eh_abort,
4199 .eh_device_reset_handler= qla1280_eh_device_reset,
4200 .eh_bus_reset_handler = qla1280_eh_bus_reset,
4201 .eh_host_reset_handler = qla1280_eh_adapter_reset,
4202 .bios_param = qla1280_biosparam,
2bcbc814 4203 .can_queue = MAX_OUTSTANDING_COMMANDS,
1da177e4
LT		 4204 .this_id = -1,
4205 .sg_tablesize = SG_ALL,
1da177e4 4206};
2dbb04c6 4207
1da177e4 4208
6f039790 4209static int
1da177e4
LT		 4210qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4211{
4212 int devnum = id->driver_data;
4213 struct qla_boards *bdp = &ql1280_board_tbl[devnum];
4214 struct Scsi_Host *host;
4215 struct scsi_qla_host *ha;
4216 int error = -ENODEV;
4217
4218 /* Bypass all AMI SUBSYS VENDOR IDs */
4219 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
4220 printk(KERN_INFO
4221 "qla1280: Skipping AMI SubSys Vendor ID Chip\n");
4222 goto error;
4223 }
4224
4225 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
4226 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
4227
4228 if (pci_enable_device(pdev)) {
4229 printk(KERN_WARNING
4230 "qla1280: Failed to enabled pci device, aborting.\n");
4231 goto error;
4232 }
4233
4234 pci_set_master(pdev);
4235
4236 error = -ENOMEM;
4237 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
4238 if (!host) {
4239 printk(KERN_WARNING
4240 "qla1280: Failed to register host, aborting.\n");
4241 goto error_disable_device;
4242 }
4243
4244 ha = (struct scsi_qla_host *)host->hostdata;
4245 memset(ha, 0, sizeof(struct scsi_qla_host));
4246
4247 ha->pdev = pdev;
4248 ha->devnum = devnum; /* specifies microcode load address */
4249
4250#ifdef QLA_64BIT_PTR
4a01ab60 4251 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) {
60ea4fb1 4252 if (dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32))) {
1da177e4 4253 printk(KERN_WARNING "scsi(%li): Unable to set a "
2b55cac3 4254 "suitable DMA mask - aborting\n", ha->host_no);
1da177e4 4255 error = -ENODEV;
eb7a1698 4256 goto error_put_host;
1da177e4
LT		 4257 }
4258 } else
4259 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
4260 ha->host_no);
4261#else
60ea4fb1 4262 if (dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32))) {
1da177e4 4263 printk(KERN_WARNING "scsi(%li): Unable to set a "
2b55cac3 4264 "suitable DMA mask - aborting\n", ha->host_no);
1da177e4 4265 error = -ENODEV;
eb7a1698 4266 goto error_put_host;
1da177e4
LT		 4267 }
4268#endif
4269
60ea4fb1 4270 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
2b55cac3 4271 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
60ea4fb1 4272 &ha->request_dma, GFP_KERNEL);
1da177e4
LT		 4273 if (!ha->request_ring) {
4274 printk(KERN_INFO "qla1280: Failed to get request memory\n");
4275 goto error_put_host;
4276 }
4277
60ea4fb1 4278 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
2b55cac3 4279 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
60ea4fb1 4280 &ha->response_dma, GFP_KERNEL);
1da177e4
LT		 4281 if (!ha->response_ring) {
4282 printk(KERN_INFO "qla1280: Failed to get response memory\n");
4283 goto error_free_request_ring;
4284 }
4285
4286 ha->ports = bdp->numPorts;
4287
4288 ha->host = host;
4289 ha->host_no = host->host_no;
4290
4291 host->irq = pdev->irq;
4292 host->max_channel = bdp->numPorts - 1;
4293 host->max_lun = MAX_LUNS - 1;
4294 host->max_id = MAX_TARGETS;
4295 host->max_sectors = 1024;
4296 host->unique_id = host->host_no;
4297
1da177e4
LT		 4298 error = -ENODEV;
4299
4300#if MEMORY_MAPPED_IO
25729a7f 4301 ha->mmpbase = pci_ioremap_bar(ha->pdev, 1);
1da177e4
LT		 4302 if (!ha->mmpbase) {
4303 printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
4304 goto error_free_response_ring;
4305 }
4306
4307 host->base = (unsigned long)ha->mmpbase;
4308 ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
4309#else
4310 host->io_port = pci_resource_start(ha->pdev, 0);
4311 if (!request_region(host->io_port, 0xff, "qla1280")) {
4312 printk(KERN_INFO "qla1280: Failed to reserve i/o region "
4313 "0x%04lx-0x%04lx - already in use\n",
4314 host->io_port, host->io_port + 0xff);
4315 goto error_free_response_ring;
4316 }
4317
4318 ha->iobase = (struct device_reg *)host->io_port;
4319#endif
4320
4321 INIT_LIST_HEAD(&ha->done_q);
4322
4323 /* Disable ISP interrupts. */
4324 qla1280_disable_intrs(ha);
4325
1d6f359a 4326 if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED,
1da177e4
LT		 4327 "qla1280", ha)) {
4328 printk("qla1280 : Failed to reserve interrupt %d already "
4329 "in use\n", pdev->irq);
4330 goto error_release_region;
4331 }
4332
4333 /* load the F/W, read paramaters, and init the H/W */
4334 if (qla1280_initialize_adapter(ha)) {
4335 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
4336 goto error_free_irq;
4337 }
4338
4339 /* set our host ID (need to do something about our two IDs) */
4340 host->this_id = ha->bus_settings[0].id;
4341
4342 pci_set_drvdata(pdev, host);
4343
1da177e4
LT		 4344 error = scsi_add_host(host, &pdev->dev);
4345 if (error)
4346 goto error_disable_adapter;
4347 scsi_scan_host(host);
1da177e4
LT		 4348
4349 return 0;
4350
1da177e4 4351 error_disable_adapter:
8af50dcd 4352 qla1280_disable_intrs(ha);
1da177e4
LT		 4353 error_free_irq:
4354 free_irq(pdev->irq, ha);
4355 error_release_region:
4356#if MEMORY_MAPPED_IO
4357 iounmap(ha->mmpbase);
4358#else
4359 release_region(host->io_port, 0xff);
4360#endif
4361 error_free_response_ring:
60ea4fb1 4362 dma_free_coherent(&ha->pdev->dev,
2b55cac3 4363 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
1da177e4
LT		 4364 ha->response_ring, ha->response_dma);
4365 error_free_request_ring:
60ea4fb1 4366 dma_free_coherent(&ha->pdev->dev,
2b55cac3 4367 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
1da177e4
LT		 4368 ha->request_ring, ha->request_dma);
4369 error_put_host:
4370 scsi_host_put(host);
4371 error_disable_device:
4372 pci_disable_device(pdev);
4373 error:
4374 return error;
4375}
4376
4377
6f039790 4378static void
1da177e4
LT		 4379qla1280_remove_one(struct pci_dev *pdev)
4380{
4381 struct Scsi_Host *host = pci_get_drvdata(pdev);
4382 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
4383
1da177e4 4384 scsi_remove_host(host);
1da177e4 4385
8af50dcd 4386 qla1280_disable_intrs(ha);
1da177e4
LT		 4387
4388 free_irq(pdev->irq, ha);
4389
4390#if MEMORY_MAPPED_IO
4391 iounmap(ha->mmpbase);
4392#else
4393 release_region(host->io_port, 0xff);
4394#endif
4395
60ea4fb1 4396 dma_free_coherent(&ha->pdev->dev,
1da177e4
LT		 4397 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4398 ha->request_ring, ha->request_dma);
60ea4fb1 4399 dma_free_coherent(&ha->pdev->dev,
1da177e4
LT		 4400 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4401 ha->response_ring, ha->response_dma);
4402
4403 pci_disable_device(pdev);
4404
4405 scsi_host_put(host);
4406}
4407
1da177e4
LT		 4408static struct pci_driver qla1280_pci_driver = {
4409 .name = "qla1280",
4410 .id_table = qla1280_pci_tbl,
4411 .probe = qla1280_probe_one,
6f039790 4412 .remove = qla1280_remove_one,
1da177e4
LT		 4413};
4414
4415static int __init
4416qla1280_init(void)
4417{
4418 if (sizeof(struct srb) > sizeof(struct scsi_pointer)) {
4419 printk(KERN_WARNING
4420 "qla1280: struct srb too big, aborting\n");
4421 return -EINVAL;
4422 }
4423
4424#ifdef MODULE
4425 /*
4426 * If we are called as a module, the qla1280 pointer may not be null
4427 * and it would point to our bootup string, just like on the lilo
4428 * command line. IF not NULL, then process this config string with
4429 * qla1280_setup
4430 *
4431 * Boot time Options
4432 * To add options at boot time add a line to your lilo.conf file like:
4433 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
4434 * which will result in the first four devices on the first two
4435 * controllers being set to a tagged queue depth of 32.
4436 */
4437 if (qla1280)
4438 qla1280_setup(qla1280);
4439#endif
4440
dcbccbde 4441 return pci_register_driver(&qla1280_pci_driver);
1da177e4
LT		 4442}
4443
4444static void __exit
4445qla1280_exit(void)
4446{
421e33d0
MR		 4447 int i;
4448
1da177e4 4449 pci_unregister_driver(&qla1280_pci_driver);
421e33d0
MR		 4450 /* release any allocated firmware images */
4451 for (i = 0; i < QL_NUM_FW_IMAGES; i++) {
90449e5d
JJ		 4452 release_firmware(qla1280_fw_tbl[i].fw);
4453 qla1280_fw_tbl[i].fw = NULL;
421e33d0 4454 }
1da177e4
LT		 4455}
4456
4457module_init(qla1280_init);
4458module_exit(qla1280_exit);
4459
1da177e4
LT		 4460MODULE_AUTHOR("Qlogic & Jes Sorensen");
4461MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
4462MODULE_LICENSE("GPL");
1bfa11db
JSR		 4463MODULE_FIRMWARE("qlogic/1040.bin");
4464MODULE_FIRMWARE("qlogic/1280.bin");
4465MODULE_FIRMWARE("qlogic/12160.bin");
1da177e4
LT		 4466MODULE_VERSION(QLA1280_VERSION);
4467
4468/*
4469 * Overrides for Emacs so that we almost follow Linus's tabbing style.
4470 * Emacs will notice this stuff at the end of the file and automatically
4471 * adjust the settings for this buffer only. This must remain at the end
4472 * of the file.
4473 * ---------------------------------------------------------------------------
4474 * Local variables:
4475 * c-basic-offset: 8
4476 * tab-width: 8
4477 * End:
4478 */
Linux 6.x block layer and io_uring tree(s)