xref: /linux/drivers/scsi/aacraid/linit.c (revision b85d45947951d23cb22d90caecf4c1eb81342c96)
1 /*
2  *	Adaptec AAC series RAID controller driver
3  *	(c) Copyright 2001 Red Hat Inc.
4  *
5  * based on the old aacraid driver that is..
6  * Adaptec aacraid device driver for Linux.
7  *
8  * Copyright (c) 2000-2010 Adaptec, Inc.
9  *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation; either version 2, or (at your option)
14  * any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; see the file COPYING.  If not, write to
23  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24  *
25  * Module Name:
26  *   linit.c
27  *
28  * Abstract: Linux Driver entry module for Adaptec RAID Array Controller
29  */
30 
31 
32 #include <linux/compat.h>
33 #include <linux/blkdev.h>
34 #include <linux/completion.h>
35 #include <linux/init.h>
36 #include <linux/interrupt.h>
37 #include <linux/kernel.h>
38 #include <linux/module.h>
39 #include <linux/moduleparam.h>
40 #include <linux/pci.h>
41 #include <linux/pci-aspm.h>
42 #include <linux/slab.h>
43 #include <linux/mutex.h>
44 #include <linux/spinlock.h>
45 #include <linux/syscalls.h>
46 #include <linux/delay.h>
47 #include <linux/kthread.h>
48 
49 #include <scsi/scsi.h>
50 #include <scsi/scsi_cmnd.h>
51 #include <scsi/scsi_device.h>
52 #include <scsi/scsi_host.h>
53 #include <scsi/scsi_tcq.h>
54 #include <scsi/scsicam.h>
55 #include <scsi/scsi_eh.h>
56 
57 #include "aacraid.h"
58 
59 #define AAC_DRIVER_VERSION		"1.2-1"
60 #ifndef AAC_DRIVER_BRANCH
61 #define AAC_DRIVER_BRANCH		""
62 #endif
63 #define AAC_DRIVERNAME			"aacraid"
64 
65 #ifdef AAC_DRIVER_BUILD
66 #define _str(x) #x
67 #define str(x) _str(x)
68 #define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION "[" str(AAC_DRIVER_BUILD) "]" AAC_DRIVER_BRANCH
69 #else
70 #define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION AAC_DRIVER_BRANCH
71 #endif
72 
73 MODULE_AUTHOR("Red Hat Inc and Adaptec");
74 MODULE_DESCRIPTION("Dell PERC2, 2/Si, 3/Si, 3/Di, "
75 		   "Adaptec Advanced Raid Products, "
76 		   "HP NetRAID-4M, IBM ServeRAID & ICP SCSI driver");
77 MODULE_LICENSE("GPL");
78 MODULE_VERSION(AAC_DRIVER_FULL_VERSION);
79 
80 static DEFINE_MUTEX(aac_mutex);
81 static LIST_HEAD(aac_devices);
82 static int aac_cfg_major = -1;
83 char aac_driver_version[] = AAC_DRIVER_FULL_VERSION;
84 
85 /*
86  * Because of the way Linux names scsi devices, the order in this table has
87  * become important.  Check for on-board Raid first, add-in cards second.
88  *
89  * Note: The last field is used to index into aac_drivers below.
90  */
91 static const struct pci_device_id aac_pci_tbl[] = {
92 	{ 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */
93 	{ 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */
94 	{ 0x1028, 0x0003, 0x1028, 0x0003, 0, 0, 2 }, /* PERC 3/Si (SlimFast/PERC3Si */
95 	{ 0x1028, 0x0004, 0x1028, 0x00d0, 0, 0, 3 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
96 	{ 0x1028, 0x0002, 0x1028, 0x00d1, 0, 0, 4 }, /* PERC 3/Di (Viper/PERC3DiV) */
97 	{ 0x1028, 0x0002, 0x1028, 0x00d9, 0, 0, 5 }, /* PERC 3/Di (Lexus/PERC3DiL) */
98 	{ 0x1028, 0x000a, 0x1028, 0x0106, 0, 0, 6 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
99 	{ 0x1028, 0x000a, 0x1028, 0x011b, 0, 0, 7 }, /* PERC 3/Di (Dagger/PERC3DiD) */
100 	{ 0x1028, 0x000a, 0x1028, 0x0121, 0, 0, 8 }, /* PERC 3/Di (Boxster/PERC3DiB) */
101 	{ 0x9005, 0x0283, 0x9005, 0x0283, 0, 0, 9 }, /* catapult */
102 	{ 0x9005, 0x0284, 0x9005, 0x0284, 0, 0, 10 }, /* tomcat */
103 	{ 0x9005, 0x0285, 0x9005, 0x0286, 0, 0, 11 }, /* Adaptec 2120S (Crusader) */
104 	{ 0x9005, 0x0285, 0x9005, 0x0285, 0, 0, 12 }, /* Adaptec 2200S (Vulcan) */
105 	{ 0x9005, 0x0285, 0x9005, 0x0287, 0, 0, 13 }, /* Adaptec 2200S (Vulcan-2m) */
106 	{ 0x9005, 0x0285, 0x17aa, 0x0286, 0, 0, 14 }, /* Legend S220 (Legend Crusader) */
107 	{ 0x9005, 0x0285, 0x17aa, 0x0287, 0, 0, 15 }, /* Legend S230 (Legend Vulcan) */
108 
109 	{ 0x9005, 0x0285, 0x9005, 0x0288, 0, 0, 16 }, /* Adaptec 3230S (Harrier) */
110 	{ 0x9005, 0x0285, 0x9005, 0x0289, 0, 0, 17 }, /* Adaptec 3240S (Tornado) */
111 	{ 0x9005, 0x0285, 0x9005, 0x028a, 0, 0, 18 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
112 	{ 0x9005, 0x0285, 0x9005, 0x028b, 0, 0, 19 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
113 	{ 0x9005, 0x0286, 0x9005, 0x028c, 0, 0, 20 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
114 	{ 0x9005, 0x0286, 0x9005, 0x028d, 0, 0, 21 }, /* ASR-2130S (Lancer) */
115 	{ 0x9005, 0x0286, 0x9005, 0x029b, 0, 0, 22 }, /* AAR-2820SA (Intruder) */
116 	{ 0x9005, 0x0286, 0x9005, 0x029c, 0, 0, 23 }, /* AAR-2620SA (Intruder) */
117 	{ 0x9005, 0x0286, 0x9005, 0x029d, 0, 0, 24 }, /* AAR-2420SA (Intruder) */
118 	{ 0x9005, 0x0286, 0x9005, 0x029e, 0, 0, 25 }, /* ICP9024RO (Lancer) */
119 	{ 0x9005, 0x0286, 0x9005, 0x029f, 0, 0, 26 }, /* ICP9014RO (Lancer) */
120 	{ 0x9005, 0x0286, 0x9005, 0x02a0, 0, 0, 27 }, /* ICP9047MA (Lancer) */
121 	{ 0x9005, 0x0286, 0x9005, 0x02a1, 0, 0, 28 }, /* ICP9087MA (Lancer) */
122 	{ 0x9005, 0x0286, 0x9005, 0x02a3, 0, 0, 29 }, /* ICP5445AU (Hurricane44) */
123 	{ 0x9005, 0x0285, 0x9005, 0x02a4, 0, 0, 30 }, /* ICP9085LI (Marauder-X) */
124 	{ 0x9005, 0x0285, 0x9005, 0x02a5, 0, 0, 31 }, /* ICP5085BR (Marauder-E) */
125 	{ 0x9005, 0x0286, 0x9005, 0x02a6, 0, 0, 32 }, /* ICP9067MA (Intruder-6) */
126 	{ 0x9005, 0x0287, 0x9005, 0x0800, 0, 0, 33 }, /* Themisto Jupiter Platform */
127 	{ 0x9005, 0x0200, 0x9005, 0x0200, 0, 0, 33 }, /* Themisto Jupiter Platform */
128 	{ 0x9005, 0x0286, 0x9005, 0x0800, 0, 0, 34 }, /* Callisto Jupiter Platform */
129 	{ 0x9005, 0x0285, 0x9005, 0x028e, 0, 0, 35 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
130 	{ 0x9005, 0x0285, 0x9005, 0x028f, 0, 0, 36 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
131 	{ 0x9005, 0x0285, 0x9005, 0x0290, 0, 0, 37 }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
132 	{ 0x9005, 0x0285, 0x1028, 0x0291, 0, 0, 38 }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
133 	{ 0x9005, 0x0285, 0x9005, 0x0292, 0, 0, 39 }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
134 	{ 0x9005, 0x0285, 0x9005, 0x0293, 0, 0, 40 }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
135 	{ 0x9005, 0x0285, 0x9005, 0x0294, 0, 0, 41 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
136 	{ 0x9005, 0x0285, 0x103C, 0x3227, 0, 0, 42 }, /* AAR-2610SA PCI SATA 6ch */
137 	{ 0x9005, 0x0285, 0x9005, 0x0296, 0, 0, 43 }, /* ASR-2240S (SabreExpress) */
138 	{ 0x9005, 0x0285, 0x9005, 0x0297, 0, 0, 44 }, /* ASR-4005 */
139 	{ 0x9005, 0x0285, 0x1014, 0x02F2, 0, 0, 45 }, /* IBM 8i (AvonPark) */
140 	{ 0x9005, 0x0285, 0x1014, 0x0312, 0, 0, 45 }, /* IBM 8i (AvonPark Lite) */
141 	{ 0x9005, 0x0286, 0x1014, 0x9580, 0, 0, 46 }, /* IBM 8k/8k-l8 (Aurora) */
142 	{ 0x9005, 0x0286, 0x1014, 0x9540, 0, 0, 47 }, /* IBM 8k/8k-l4 (Aurora Lite) */
143 	{ 0x9005, 0x0285, 0x9005, 0x0298, 0, 0, 48 }, /* ASR-4000 (BlackBird) */
144 	{ 0x9005, 0x0285, 0x9005, 0x0299, 0, 0, 49 }, /* ASR-4800SAS (Marauder-X) */
145 	{ 0x9005, 0x0285, 0x9005, 0x029a, 0, 0, 50 }, /* ASR-4805SAS (Marauder-E) */
146 	{ 0x9005, 0x0286, 0x9005, 0x02a2, 0, 0, 51 }, /* ASR-3800 (Hurricane44) */
147 
148 	{ 0x9005, 0x0285, 0x1028, 0x0287, 0, 0, 52 }, /* Perc 320/DC*/
149 	{ 0x1011, 0x0046, 0x9005, 0x0365, 0, 0, 53 }, /* Adaptec 5400S (Mustang)*/
150 	{ 0x1011, 0x0046, 0x9005, 0x0364, 0, 0, 54 }, /* Adaptec 5400S (Mustang)*/
151 	{ 0x1011, 0x0046, 0x9005, 0x1364, 0, 0, 55 }, /* Dell PERC2/QC */
152 	{ 0x1011, 0x0046, 0x103c, 0x10c2, 0, 0, 56 }, /* HP NetRAID-4M */
153 
154 	{ 0x9005, 0x0285, 0x1028, PCI_ANY_ID, 0, 0, 57 }, /* Dell Catchall */
155 	{ 0x9005, 0x0285, 0x17aa, PCI_ANY_ID, 0, 0, 58 }, /* Legend Catchall */
156 	{ 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */
157 	{ 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */
158 	{ 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */
159 	{ 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Series 6 (Tupelo) */
160 	{ 0x9005, 0x028c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 63 }, /* Adaptec PMC Series 7 (Denali) */
161 	{ 0x9005, 0x028d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 64 }, /* Adaptec PMC Series 8 */
162 	{ 0x9005, 0x028f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 65 }, /* Adaptec PMC Series 9 */
163 	{ 0,}
164 };
165 MODULE_DEVICE_TABLE(pci, aac_pci_tbl);
166 
167 /*
168  * dmb - For now we add the number of channels to this structure.
169  * In the future we should add a fib that reports the number of channels
170  * for the card.  At that time we can remove the channels from here
171  */
172 static struct aac_driver_ident aac_drivers[] = {
173 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 2/Si (Iguana/PERC2Si) */
174 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Opal/PERC3Di) */
175 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Si (SlimFast/PERC3Si */
176 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
177 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Viper/PERC3DiV) */
178 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Lexus/PERC3DiL) */
179 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
180 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Dagger/PERC3DiD) */
181 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Boxster/PERC3DiB) */
182 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "catapult        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* catapult */
183 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "tomcat          ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* tomcat */
184 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2120S   ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG },		      /* Adaptec 2120S (Crusader) */
185 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG },		      /* Adaptec 2200S (Vulcan) */
186 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2200S (Vulcan-2m) */
187 	{ aac_rx_init, "aacraid",  "Legend  ", "Legend S220     ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S220 (Legend Crusader) */
188 	{ aac_rx_init, "aacraid",  "Legend  ", "Legend S230     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S230 (Legend Vulcan) */
189 
190 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 3230S   ", 2 }, /* Adaptec 3230S (Harrier) */
191 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 3240S   ", 2 }, /* Adaptec 3240S (Tornado) */
192 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2020ZCR     ", 2 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
193 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2025ZCR     ", 2 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
194 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "ASR-2230S PCI-X ", 2 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
195 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "ASR-2130S PCI-X ", 1 }, /* ASR-2130S (Lancer) */
196 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "AAR-2820SA      ", 1 }, /* AAR-2820SA (Intruder) */
197 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "AAR-2620SA      ", 1 }, /* AAR-2620SA (Intruder) */
198 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "AAR-2420SA      ", 1 }, /* AAR-2420SA (Intruder) */
199 	{ aac_rkt_init, "aacraid",  "ICP     ", "ICP9024RO       ", 2 }, /* ICP9024RO (Lancer) */
200 	{ aac_rkt_init, "aacraid",  "ICP     ", "ICP9014RO       ", 1 }, /* ICP9014RO (Lancer) */
201 	{ aac_rkt_init, "aacraid",  "ICP     ", "ICP9047MA       ", 1 }, /* ICP9047MA (Lancer) */
202 	{ aac_rkt_init, "aacraid",  "ICP     ", "ICP9087MA       ", 1 }, /* ICP9087MA (Lancer) */
203 	{ aac_rkt_init, "aacraid",  "ICP     ", "ICP5445AU       ", 1 }, /* ICP5445AU (Hurricane44) */
204 	{ aac_rx_init, "aacraid",  "ICP     ", "ICP9085LI       ", 1 }, /* ICP9085LI (Marauder-X) */
205 	{ aac_rx_init, "aacraid",  "ICP     ", "ICP5085BR       ", 1 }, /* ICP5085BR (Marauder-E) */
206 	{ aac_rkt_init, "aacraid",  "ICP     ", "ICP9067MA       ", 1 }, /* ICP9067MA (Intruder-6) */
207 	{ NULL        , "aacraid",  "ADAPTEC ", "Themisto        ", 0, AAC_QUIRK_SLAVE }, /* Jupiter Platform */
208 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "Callisto        ", 2, AAC_QUIRK_MASTER }, /* Jupiter Platform */
209 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2020SA       ", 1 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
210 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2025SA       ", 1 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
211 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2410SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
212 	{ aac_rx_init, "aacraid",  "DELL    ", "CERC SR2        ", 1, AAC_QUIRK_17SG }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
213 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2810SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
214 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-21610SA SATA", 1, AAC_QUIRK_17SG }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
215 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2026ZCR     ", 1 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
216 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2610SA      ", 1 }, /* SATA 6Ch (Bearcat) */
217 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2240S       ", 1 }, /* ASR-2240S (SabreExpress) */
218 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4005        ", 1 }, /* ASR-4005 */
219 	{ aac_rx_init, "ServeRAID","IBM     ", "ServeRAID 8i    ", 1 }, /* IBM 8i (AvonPark) */
220 	{ aac_rkt_init, "ServeRAID","IBM     ", "ServeRAID 8k-l8 ", 1 }, /* IBM 8k/8k-l8 (Aurora) */
221 	{ aac_rkt_init, "ServeRAID","IBM     ", "ServeRAID 8k-l4 ", 1 }, /* IBM 8k/8k-l4 (Aurora Lite) */
222 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4000        ", 1 }, /* ASR-4000 (BlackBird & AvonPark) */
223 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4800SAS     ", 1 }, /* ASR-4800SAS (Marauder-X) */
224 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4805SAS     ", 1 }, /* ASR-4805SAS (Marauder-E) */
225 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "ASR-3800        ", 1 }, /* ASR-3800 (Hurricane44) */
226 
227 	{ aac_rx_init, "percraid", "DELL    ", "PERC 320/DC     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Perc 320/DC*/
228 	{ aac_sa_init, "aacraid",  "ADAPTEC ", "Adaptec 5400S   ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
229 	{ aac_sa_init, "aacraid",  "ADAPTEC ", "AAC-364         ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
230 	{ aac_sa_init, "percraid", "DELL    ", "PERCRAID        ", 4, AAC_QUIRK_34SG }, /* Dell PERC2/QC */
231 	{ aac_sa_init, "hpnraid",  "HP      ", "NetRAID         ", 4, AAC_QUIRK_34SG }, /* HP NetRAID-4M */
232 
233 	{ aac_rx_init, "aacraid",  "DELL    ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Dell Catchall */
234 	{ aac_rx_init, "aacraid",  "Legend  ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend Catchall */
235 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Catch All */
236 	{ aac_rkt_init, "aacraid", "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Rocket Catch All */
237 	{ aac_nark_init, "aacraid", "ADAPTEC ", "RAID           ", 2 }, /* Adaptec NEMER/ARK Catch All */
238 	{ aac_src_init, "aacraid", "ADAPTEC ", "RAID            ", 2 }, /* Adaptec PMC Series 6 (Tupelo) */
239 	{ aac_srcv_init, "aacraid", "ADAPTEC ", "RAID            ", 2 }, /* Adaptec PMC Series 7 (Denali) */
240 	{ aac_srcv_init, "aacraid", "ADAPTEC ", "RAID            ", 2 }, /* Adaptec PMC Series 8 */
241 	{ aac_srcv_init, "aacraid", "ADAPTEC ", "RAID            ", 2 } /* Adaptec PMC Series 9 */
242 };
243 
244 /**
245  *	aac_queuecommand	-	queue a SCSI command
246  *	@cmd:		SCSI command to queue
247  *	@done:		Function to call on command completion
248  *
249  *	Queues a command for execution by the associated Host Adapter.
250  *
251  *	TODO: unify with aac_scsi_cmd().
252  */
253 
254 static int aac_queuecommand(struct Scsi_Host *shost,
255 			    struct scsi_cmnd *cmd)
256 {
257 	int r = 0;
258 	cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
259 	r = (aac_scsi_cmd(cmd) ? FAILED : 0);
260 	return r;
261 }
262 
263 /**
264  *	aac_info		-	Returns the host adapter name
265  *	@shost:		Scsi host to report on
266  *
267  *	Returns a static string describing the device in question
268  */
269 
270 static const char *aac_info(struct Scsi_Host *shost)
271 {
272 	struct aac_dev *dev = (struct aac_dev *)shost->hostdata;
273 	return aac_drivers[dev->cardtype].name;
274 }
275 
276 /**
277  *	aac_get_driver_ident
278  *	@devtype: index into lookup table
279  *
280  *	Returns a pointer to the entry in the driver lookup table.
281  */
282 
283 struct aac_driver_ident* aac_get_driver_ident(int devtype)
284 {
285 	return &aac_drivers[devtype];
286 }
287 
288 /**
289  *	aac_biosparm	-	return BIOS parameters for disk
290  *	@sdev: The scsi device corresponding to the disk
291  *	@bdev: the block device corresponding to the disk
292  *	@capacity: the sector capacity of the disk
293  *	@geom: geometry block to fill in
294  *
295  *	Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk.
296  *	The default disk geometry is 64 heads, 32 sectors, and the appropriate
297  *	number of cylinders so as not to exceed drive capacity.  In order for
298  *	disks equal to or larger than 1 GB to be addressable by the BIOS
299  *	without exceeding the BIOS limitation of 1024 cylinders, Extended
300  *	Translation should be enabled.   With Extended Translation enabled,
301  *	drives between 1 GB inclusive and 2 GB exclusive are given a disk
302  *	geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive
303  *	are given a disk geometry of 255 heads and 63 sectors.  However, if
304  *	the BIOS detects that the Extended Translation setting does not match
305  *	the geometry in the partition table, then the translation inferred
306  *	from the partition table will be used by the BIOS, and a warning may
307  *	be displayed.
308  */
309 
310 static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
311 			sector_t capacity, int *geom)
312 {
313 	struct diskparm *param = (struct diskparm *)geom;
314 	unsigned char *buf;
315 
316 	dprintk((KERN_DEBUG "aac_biosparm.\n"));
317 
318 	/*
319 	 *	Assuming extended translation is enabled - #REVISIT#
320 	 */
321 	if (capacity >= 2 * 1024 * 1024) { /* 1 GB in 512 byte sectors */
322 		if(capacity >= 4 * 1024 * 1024) { /* 2 GB in 512 byte sectors */
323 			param->heads = 255;
324 			param->sectors = 63;
325 		} else {
326 			param->heads = 128;
327 			param->sectors = 32;
328 		}
329 	} else {
330 		param->heads = 64;
331 		param->sectors = 32;
332 	}
333 
334 	param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
335 
336 	/*
337 	 *	Read the first 1024 bytes from the disk device, if the boot
338 	 *	sector partition table is valid, search for a partition table
339 	 *	entry whose end_head matches one of the standard geometry
340 	 *	translations ( 64/32, 128/32, 255/63 ).
341 	 */
342 	buf = scsi_bios_ptable(bdev);
343 	if (!buf)
344 		return 0;
345 	if(*(__le16 *)(buf + 0x40) == cpu_to_le16(0xaa55)) {
346 		struct partition *first = (struct partition * )buf;
347 		struct partition *entry = first;
348 		int saved_cylinders = param->cylinders;
349 		int num;
350 		unsigned char end_head, end_sec;
351 
352 		for(num = 0; num < 4; num++) {
353 			end_head = entry->end_head;
354 			end_sec = entry->end_sector & 0x3f;
355 
356 			if(end_head == 63) {
357 				param->heads = 64;
358 				param->sectors = 32;
359 				break;
360 			} else if(end_head == 127) {
361 				param->heads = 128;
362 				param->sectors = 32;
363 				break;
364 			} else if(end_head == 254) {
365 				param->heads = 255;
366 				param->sectors = 63;
367 				break;
368 			}
369 			entry++;
370 		}
371 
372 		if (num == 4) {
373 			end_head = first->end_head;
374 			end_sec = first->end_sector & 0x3f;
375 		}
376 
377 		param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
378 		if (num < 4 && end_sec == param->sectors) {
379 			if (param->cylinders != saved_cylinders)
380 				dprintk((KERN_DEBUG "Adopting geometry: heads=%d, sectors=%d from partition table %d.\n",
381 					param->heads, param->sectors, num));
382 		} else if (end_head > 0 || end_sec > 0) {
383 			dprintk((KERN_DEBUG "Strange geometry: heads=%d, sectors=%d in partition table %d.\n",
384 				end_head + 1, end_sec, num));
385 			dprintk((KERN_DEBUG "Using geometry: heads=%d, sectors=%d.\n",
386 					param->heads, param->sectors));
387 		}
388 	}
389 	kfree(buf);
390 	return 0;
391 }
392 
393 /**
394  *	aac_slave_configure		-	compute queue depths
395  *	@sdev:	SCSI device we are considering
396  *
397  *	Selects queue depths for each target device based on the host adapter's
398  *	total capacity and the queue depth supported by the target device.
399  *	A queue depth of one automatically disables tagged queueing.
400  */
401 
402 static int aac_slave_configure(struct scsi_device *sdev)
403 {
404 	struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
405 	if (aac->jbod && (sdev->type == TYPE_DISK))
406 		sdev->removable = 1;
407 	if ((sdev->type == TYPE_DISK) &&
408 			(sdev_channel(sdev) != CONTAINER_CHANNEL) &&
409 			(!aac->jbod || sdev->inq_periph_qual) &&
410 			(!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))) {
411 		if (expose_physicals == 0)
412 			return -ENXIO;
413 		if (expose_physicals < 0)
414 			sdev->no_uld_attach = 1;
415 	}
416 	if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
417 			(!aac->raid_scsi_mode || (sdev_channel(sdev) != 2)) &&
418 			!sdev->no_uld_attach) {
419 		struct scsi_device * dev;
420 		struct Scsi_Host *host = sdev->host;
421 		unsigned num_lsu = 0;
422 		unsigned num_one = 0;
423 		unsigned depth;
424 		unsigned cid;
425 
426 		/*
427 		 * Firmware has an individual device recovery time typically
428 		 * of 35 seconds, give us a margin.
429 		 */
430 		if (sdev->request_queue->rq_timeout < (45 * HZ))
431 			blk_queue_rq_timeout(sdev->request_queue, 45*HZ);
432 		for (cid = 0; cid < aac->maximum_num_containers; ++cid)
433 			if (aac->fsa_dev[cid].valid)
434 				++num_lsu;
435 		__shost_for_each_device(dev, host) {
436 			if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
437 					(!aac->raid_scsi_mode ||
438 						(sdev_channel(sdev) != 2)) &&
439 					!dev->no_uld_attach) {
440 				if ((sdev_channel(dev) != CONTAINER_CHANNEL)
441 				 || !aac->fsa_dev[sdev_id(dev)].valid)
442 					++num_lsu;
443 			} else
444 				++num_one;
445 		}
446 		if (num_lsu == 0)
447 			++num_lsu;
448 		depth = (host->can_queue - num_one) / num_lsu;
449 		if (depth > 256)
450 			depth = 256;
451 		else if (depth < 2)
452 			depth = 2;
453 		scsi_change_queue_depth(sdev, depth);
454 	} else
455 		scsi_change_queue_depth(sdev, 1);
456 
457 	return 0;
458 }
459 
460 /**
461  *	aac_change_queue_depth		-	alter queue depths
462  *	@sdev:	SCSI device we are considering
463  *	@depth:	desired queue depth
464  *
465  *	Alters queue depths for target device based on the host adapter's
466  *	total capacity and the queue depth supported by the target device.
467  */
468 
469 static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
470 {
471 	if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
472 	    (sdev_channel(sdev) == CONTAINER_CHANNEL)) {
473 		struct scsi_device * dev;
474 		struct Scsi_Host *host = sdev->host;
475 		unsigned num = 0;
476 
477 		__shost_for_each_device(dev, host) {
478 			if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
479 			    (sdev_channel(dev) == CONTAINER_CHANNEL))
480 				++num;
481 			++num;
482 		}
483 		if (num >= host->can_queue)
484 			num = host->can_queue - 1;
485 		if (depth > (host->can_queue - num))
486 			depth = host->can_queue - num;
487 		if (depth > 256)
488 			depth = 256;
489 		else if (depth < 2)
490 			depth = 2;
491 		return scsi_change_queue_depth(sdev, depth);
492 	}
493 
494 	return scsi_change_queue_depth(sdev, 1);
495 }
496 
497 static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf)
498 {
499 	struct scsi_device *sdev = to_scsi_device(dev);
500 	struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
501 	if (sdev_channel(sdev) != CONTAINER_CHANNEL)
502 		return snprintf(buf, PAGE_SIZE, sdev->no_uld_attach
503 		  ? "Hidden\n" :
504 		  ((aac->jbod && (sdev->type == TYPE_DISK)) ? "JBOD\n" : ""));
505 	return snprintf(buf, PAGE_SIZE, "%s\n",
506 	  get_container_type(aac->fsa_dev[sdev_id(sdev)].type));
507 }
508 
509 static struct device_attribute aac_raid_level_attr = {
510 	.attr = {
511 		.name = "level",
512 		.mode = S_IRUGO,
513 	},
514 	.show = aac_show_raid_level
515 };
516 
517 static struct device_attribute *aac_dev_attrs[] = {
518 	&aac_raid_level_attr,
519 	NULL,
520 };
521 
522 static int aac_ioctl(struct scsi_device *sdev, int cmd, void __user * arg)
523 {
524 	struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
525 	if (!capable(CAP_SYS_RAWIO))
526 		return -EPERM;
527 	return aac_do_ioctl(dev, cmd, arg);
528 }
529 
530 static int aac_eh_abort(struct scsi_cmnd* cmd)
531 {
532 	struct scsi_device * dev = cmd->device;
533 	struct Scsi_Host * host = dev->host;
534 	struct aac_dev * aac = (struct aac_dev *)host->hostdata;
535 	int count;
536 	int ret = FAILED;
537 
538 	printk(KERN_ERR "%s: Host adapter abort request (%d,%d,%d,%llu)\n",
539 		AAC_DRIVERNAME,
540 		host->host_no, sdev_channel(dev), sdev_id(dev), dev->lun);
541 	switch (cmd->cmnd[0]) {
542 	case SERVICE_ACTION_IN_16:
543 		if (!(aac->raw_io_interface) ||
544 		    !(aac->raw_io_64) ||
545 		    ((cmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
546 			break;
547 	case INQUIRY:
548 	case READ_CAPACITY:
549 		/* Mark associated FIB to not complete, eh handler does this */
550 		for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
551 			struct fib * fib = &aac->fibs[count];
552 			if (fib->hw_fib_va->header.XferState &&
553 			  (fib->flags & FIB_CONTEXT_FLAG) &&
554 			  (fib->callback_data == cmd)) {
555 				fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
556 				cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
557 				ret = SUCCESS;
558 			}
559 		}
560 		break;
561 	case TEST_UNIT_READY:
562 		/* Mark associated FIB to not complete, eh handler does this */
563 		for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
564 			struct scsi_cmnd * command;
565 			struct fib * fib = &aac->fibs[count];
566 			if ((fib->hw_fib_va->header.XferState & cpu_to_le32(Async | NoResponseExpected)) &&
567 			  (fib->flags & FIB_CONTEXT_FLAG) &&
568 			  ((command = fib->callback_data)) &&
569 			  (command->device == cmd->device)) {
570 				fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
571 				command->SCp.phase = AAC_OWNER_ERROR_HANDLER;
572 				if (command == cmd)
573 					ret = SUCCESS;
574 			}
575 		}
576 	}
577 	return ret;
578 }
579 
580 /*
581  *	aac_eh_reset	- Reset command handling
582  *	@scsi_cmd:	SCSI command block causing the reset
583  *
584  */
585 static int aac_eh_reset(struct scsi_cmnd* cmd)
586 {
587 	struct scsi_device * dev = cmd->device;
588 	struct Scsi_Host * host = dev->host;
589 	struct scsi_cmnd * command;
590 	int count;
591 	struct aac_dev * aac = (struct aac_dev *)host->hostdata;
592 	unsigned long flags;
593 
594 	/* Mark the associated FIB to not complete, eh handler does this */
595 	for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
596 		struct fib * fib = &aac->fibs[count];
597 		if (fib->hw_fib_va->header.XferState &&
598 		  (fib->flags & FIB_CONTEXT_FLAG) &&
599 		  (fib->callback_data == cmd)) {
600 			fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
601 			cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
602 		}
603 	}
604 	printk(KERN_ERR "%s: Host adapter reset request. SCSI hang ?\n",
605 					AAC_DRIVERNAME);
606 
607 	if ((count = aac_check_health(aac)))
608 		return count;
609 	/*
610 	 * Wait for all commands to complete to this specific
611 	 * target (block maximum 60 seconds).
612 	 */
613 	for (count = 60; count; --count) {
614 		int active = aac->in_reset;
615 
616 		if (active == 0)
617 		__shost_for_each_device(dev, host) {
618 			spin_lock_irqsave(&dev->list_lock, flags);
619 			list_for_each_entry(command, &dev->cmd_list, list) {
620 				if ((command != cmd) &&
621 				    (command->SCp.phase == AAC_OWNER_FIRMWARE)) {
622 					active++;
623 					break;
624 				}
625 			}
626 			spin_unlock_irqrestore(&dev->list_lock, flags);
627 			if (active)
628 				break;
629 
630 		}
631 		/*
632 		 * We can exit If all the commands are complete
633 		 */
634 		if (active == 0)
635 			return SUCCESS;
636 		ssleep(1);
637 	}
638 	printk(KERN_ERR "%s: SCSI bus appears hung\n", AAC_DRIVERNAME);
639 	/*
640 	 * This adapter needs a blind reset, only do so for Adapters that
641 	 * support a register, instead of a commanded, reset.
642 	 */
643 	if (((aac->supplement_adapter_info.SupportedOptions2 &
644 	  AAC_OPTION_MU_RESET) ||
645 	  (aac->supplement_adapter_info.SupportedOptions2 &
646 	  AAC_OPTION_DOORBELL_RESET)) &&
647 	  aac_check_reset &&
648 	  ((aac_check_reset != 1) ||
649 	   !(aac->supplement_adapter_info.SupportedOptions2 &
650 	    AAC_OPTION_IGNORE_RESET)))
651 		aac_reset_adapter(aac, 2); /* Bypass wait for command quiesce */
652 	return SUCCESS; /* Cause an immediate retry of the command with a ten second delay after successful tur */
653 }
654 
655 /**
656  *	aac_cfg_open		-	open a configuration file
657  *	@inode: inode being opened
658  *	@file: file handle attached
659  *
660  *	Called when the configuration device is opened. Does the needed
661  *	set up on the handle and then returns
662  *
663  *	Bugs: This needs extending to check a given adapter is present
664  *	so we can support hot plugging, and to ref count adapters.
665  */
666 
667 static int aac_cfg_open(struct inode *inode, struct file *file)
668 {
669 	struct aac_dev *aac;
670 	unsigned minor_number = iminor(inode);
671 	int err = -ENODEV;
672 
673 	mutex_lock(&aac_mutex);  /* BKL pushdown: nothing else protects this list */
674 	list_for_each_entry(aac, &aac_devices, entry) {
675 		if (aac->id == minor_number) {
676 			file->private_data = aac;
677 			err = 0;
678 			break;
679 		}
680 	}
681 	mutex_unlock(&aac_mutex);
682 
683 	return err;
684 }
685 
686 /**
687  *	aac_cfg_ioctl		-	AAC configuration request
688  *	@inode: inode of device
689  *	@file: file handle
690  *	@cmd: ioctl command code
691  *	@arg: argument
692  *
693  *	Handles a configuration ioctl. Currently this involves wrapping it
694  *	up and feeding it into the nasty windowsalike glue layer.
695  *
696  *	Bugs: Needs locking against parallel ioctls lower down
697  *	Bugs: Needs to handle hot plugging
698  */
699 
700 static long aac_cfg_ioctl(struct file *file,
701 		unsigned int cmd, unsigned long arg)
702 {
703 	int ret;
704 	struct aac_dev *aac;
705 	aac = (struct aac_dev *)file->private_data;
706 	if (!capable(CAP_SYS_RAWIO) || aac->adapter_shutdown)
707 		return -EPERM;
708 	mutex_lock(&aac_mutex);
709 	ret = aac_do_ioctl(file->private_data, cmd, (void __user *)arg);
710 	mutex_unlock(&aac_mutex);
711 
712 	return ret;
713 }
714 
715 #ifdef CONFIG_COMPAT
716 static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long arg)
717 {
718 	long ret;
719 	mutex_lock(&aac_mutex);
720 	switch (cmd) {
721 	case FSACTL_MINIPORT_REV_CHECK:
722 	case FSACTL_SENDFIB:
723 	case FSACTL_OPEN_GET_ADAPTER_FIB:
724 	case FSACTL_CLOSE_GET_ADAPTER_FIB:
725 	case FSACTL_SEND_RAW_SRB:
726 	case FSACTL_GET_PCI_INFO:
727 	case FSACTL_QUERY_DISK:
728 	case FSACTL_DELETE_DISK:
729 	case FSACTL_FORCE_DELETE_DISK:
730 	case FSACTL_GET_CONTAINERS:
731 	case FSACTL_SEND_LARGE_FIB:
732 		ret = aac_do_ioctl(dev, cmd, (void __user *)arg);
733 		break;
734 
735 	case FSACTL_GET_NEXT_ADAPTER_FIB: {
736 		struct fib_ioctl __user *f;
737 
738 		f = compat_alloc_user_space(sizeof(*f));
739 		ret = 0;
740 		if (clear_user(f, sizeof(*f)))
741 			ret = -EFAULT;
742 		if (copy_in_user(f, (void __user *)arg, sizeof(struct fib_ioctl) - sizeof(u32)))
743 			ret = -EFAULT;
744 		if (!ret)
745 			ret = aac_do_ioctl(dev, cmd, f);
746 		break;
747 	}
748 
749 	default:
750 		ret = -ENOIOCTLCMD;
751 		break;
752 	}
753 	mutex_unlock(&aac_mutex);
754 	return ret;
755 }
756 
757 static int aac_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
758 {
759 	struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
760 	if (!capable(CAP_SYS_RAWIO))
761 		return -EPERM;
762 	return aac_compat_do_ioctl(dev, cmd, (unsigned long)arg);
763 }
764 
765 static long aac_compat_cfg_ioctl(struct file *file, unsigned cmd, unsigned long arg)
766 {
767 	if (!capable(CAP_SYS_RAWIO))
768 		return -EPERM;
769 	return aac_compat_do_ioctl(file->private_data, cmd, arg);
770 }
771 #endif
772 
773 static ssize_t aac_show_model(struct device *device,
774 			      struct device_attribute *attr, char *buf)
775 {
776 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
777 	int len;
778 
779 	if (dev->supplement_adapter_info.AdapterTypeText[0]) {
780 		char * cp = dev->supplement_adapter_info.AdapterTypeText;
781 		while (*cp && *cp != ' ')
782 			++cp;
783 		while (*cp == ' ')
784 			++cp;
785 		len = snprintf(buf, PAGE_SIZE, "%s\n", cp);
786 	} else
787 		len = snprintf(buf, PAGE_SIZE, "%s\n",
788 		  aac_drivers[dev->cardtype].model);
789 	return len;
790 }
791 
792 static ssize_t aac_show_vendor(struct device *device,
793 			       struct device_attribute *attr, char *buf)
794 {
795 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
796 	int len;
797 
798 	if (dev->supplement_adapter_info.AdapterTypeText[0]) {
799 		char * cp = dev->supplement_adapter_info.AdapterTypeText;
800 		while (*cp && *cp != ' ')
801 			++cp;
802 		len = snprintf(buf, PAGE_SIZE, "%.*s\n",
803 		  (int)(cp - (char *)dev->supplement_adapter_info.AdapterTypeText),
804 		  dev->supplement_adapter_info.AdapterTypeText);
805 	} else
806 		len = snprintf(buf, PAGE_SIZE, "%s\n",
807 		  aac_drivers[dev->cardtype].vname);
808 	return len;
809 }
810 
811 static ssize_t aac_show_flags(struct device *cdev,
812 			      struct device_attribute *attr, char *buf)
813 {
814 	int len = 0;
815 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(cdev)->hostdata;
816 
817 	if (nblank(dprintk(x)))
818 		len = snprintf(buf, PAGE_SIZE, "dprintk\n");
819 #ifdef AAC_DETAILED_STATUS_INFO
820 	len += snprintf(buf + len, PAGE_SIZE - len,
821 			"AAC_DETAILED_STATUS_INFO\n");
822 #endif
823 	if (dev->raw_io_interface && dev->raw_io_64)
824 		len += snprintf(buf + len, PAGE_SIZE - len,
825 				"SAI_READ_CAPACITY_16\n");
826 	if (dev->jbod)
827 		len += snprintf(buf + len, PAGE_SIZE - len, "SUPPORTED_JBOD\n");
828 	if (dev->supplement_adapter_info.SupportedOptions2 &
829 		AAC_OPTION_POWER_MANAGEMENT)
830 		len += snprintf(buf + len, PAGE_SIZE - len,
831 				"SUPPORTED_POWER_MANAGEMENT\n");
832 	if (dev->msi)
833 		len += snprintf(buf + len, PAGE_SIZE - len, "PCI_HAS_MSI\n");
834 	return len;
835 }
836 
837 static ssize_t aac_show_kernel_version(struct device *device,
838 				       struct device_attribute *attr,
839 				       char *buf)
840 {
841 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
842 	int len, tmp;
843 
844 	tmp = le32_to_cpu(dev->adapter_info.kernelrev);
845 	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
846 	  tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
847 	  le32_to_cpu(dev->adapter_info.kernelbuild));
848 	return len;
849 }
850 
851 static ssize_t aac_show_monitor_version(struct device *device,
852 					struct device_attribute *attr,
853 					char *buf)
854 {
855 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
856 	int len, tmp;
857 
858 	tmp = le32_to_cpu(dev->adapter_info.monitorrev);
859 	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
860 	  tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
861 	  le32_to_cpu(dev->adapter_info.monitorbuild));
862 	return len;
863 }
864 
865 static ssize_t aac_show_bios_version(struct device *device,
866 				     struct device_attribute *attr,
867 				     char *buf)
868 {
869 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
870 	int len, tmp;
871 
872 	tmp = le32_to_cpu(dev->adapter_info.biosrev);
873 	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
874 	  tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
875 	  le32_to_cpu(dev->adapter_info.biosbuild));
876 	return len;
877 }
878 
879 static ssize_t aac_show_serial_number(struct device *device,
880 			       struct device_attribute *attr, char *buf)
881 {
882 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
883 	int len = 0;
884 
885 	if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
886 		len = snprintf(buf, 16, "%06X\n",
887 		  le32_to_cpu(dev->adapter_info.serial[0]));
888 	if (len &&
889 	  !memcmp(&dev->supplement_adapter_info.MfgPcbaSerialNo[
890 	    sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo)-len],
891 	  buf, len-1))
892 		len = snprintf(buf, 16, "%.*s\n",
893 		  (int)sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo),
894 		  dev->supplement_adapter_info.MfgPcbaSerialNo);
895 
896 	return min(len, 16);
897 }
898 
899 static ssize_t aac_show_max_channel(struct device *device,
900 				    struct device_attribute *attr, char *buf)
901 {
902 	return snprintf(buf, PAGE_SIZE, "%d\n",
903 	  class_to_shost(device)->max_channel);
904 }
905 
906 static ssize_t aac_show_max_id(struct device *device,
907 			       struct device_attribute *attr, char *buf)
908 {
909 	return snprintf(buf, PAGE_SIZE, "%d\n",
910 	  class_to_shost(device)->max_id);
911 }
912 
913 static ssize_t aac_store_reset_adapter(struct device *device,
914 				       struct device_attribute *attr,
915 				       const char *buf, size_t count)
916 {
917 	int retval = -EACCES;
918 
919 	if (!capable(CAP_SYS_ADMIN))
920 		return retval;
921 	retval = aac_reset_adapter((struct aac_dev*)class_to_shost(device)->hostdata, buf[0] == '!');
922 	if (retval >= 0)
923 		retval = count;
924 	return retval;
925 }
926 
927 static ssize_t aac_show_reset_adapter(struct device *device,
928 				      struct device_attribute *attr,
929 				      char *buf)
930 {
931 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
932 	int len, tmp;
933 
934 	tmp = aac_adapter_check_health(dev);
935 	if ((tmp == 0) && dev->in_reset)
936 		tmp = -EBUSY;
937 	len = snprintf(buf, PAGE_SIZE, "0x%x\n", tmp);
938 	return len;
939 }
940 
941 static struct device_attribute aac_model = {
942 	.attr = {
943 		.name = "model",
944 		.mode = S_IRUGO,
945 	},
946 	.show = aac_show_model,
947 };
948 static struct device_attribute aac_vendor = {
949 	.attr = {
950 		.name = "vendor",
951 		.mode = S_IRUGO,
952 	},
953 	.show = aac_show_vendor,
954 };
955 static struct device_attribute aac_flags = {
956 	.attr = {
957 		.name = "flags",
958 		.mode = S_IRUGO,
959 	},
960 	.show = aac_show_flags,
961 };
962 static struct device_attribute aac_kernel_version = {
963 	.attr = {
964 		.name = "hba_kernel_version",
965 		.mode = S_IRUGO,
966 	},
967 	.show = aac_show_kernel_version,
968 };
969 static struct device_attribute aac_monitor_version = {
970 	.attr = {
971 		.name = "hba_monitor_version",
972 		.mode = S_IRUGO,
973 	},
974 	.show = aac_show_monitor_version,
975 };
976 static struct device_attribute aac_bios_version = {
977 	.attr = {
978 		.name = "hba_bios_version",
979 		.mode = S_IRUGO,
980 	},
981 	.show = aac_show_bios_version,
982 };
983 static struct device_attribute aac_serial_number = {
984 	.attr = {
985 		.name = "serial_number",
986 		.mode = S_IRUGO,
987 	},
988 	.show = aac_show_serial_number,
989 };
990 static struct device_attribute aac_max_channel = {
991 	.attr = {
992 		.name = "max_channel",
993 		.mode = S_IRUGO,
994 	},
995 	.show = aac_show_max_channel,
996 };
997 static struct device_attribute aac_max_id = {
998 	.attr = {
999 		.name = "max_id",
1000 		.mode = S_IRUGO,
1001 	},
1002 	.show = aac_show_max_id,
1003 };
1004 static struct device_attribute aac_reset = {
1005 	.attr = {
1006 		.name = "reset_host",
1007 		.mode = S_IWUSR|S_IRUGO,
1008 	},
1009 	.store = aac_store_reset_adapter,
1010 	.show = aac_show_reset_adapter,
1011 };
1012 
1013 static struct device_attribute *aac_attrs[] = {
1014 	&aac_model,
1015 	&aac_vendor,
1016 	&aac_flags,
1017 	&aac_kernel_version,
1018 	&aac_monitor_version,
1019 	&aac_bios_version,
1020 	&aac_serial_number,
1021 	&aac_max_channel,
1022 	&aac_max_id,
1023 	&aac_reset,
1024 	NULL
1025 };
1026 
1027 ssize_t aac_get_serial_number(struct device *device, char *buf)
1028 {
1029 	return aac_show_serial_number(device, &aac_serial_number, buf);
1030 }
1031 
1032 static const struct file_operations aac_cfg_fops = {
1033 	.owner		= THIS_MODULE,
1034 	.unlocked_ioctl	= aac_cfg_ioctl,
1035 #ifdef CONFIG_COMPAT
1036 	.compat_ioctl   = aac_compat_cfg_ioctl,
1037 #endif
1038 	.open		= aac_cfg_open,
1039 	.llseek		= noop_llseek,
1040 };
1041 
1042 static struct scsi_host_template aac_driver_template = {
1043 	.module				= THIS_MODULE,
1044 	.name				= "AAC",
1045 	.proc_name			= AAC_DRIVERNAME,
1046 	.info				= aac_info,
1047 	.ioctl				= aac_ioctl,
1048 #ifdef CONFIG_COMPAT
1049 	.compat_ioctl			= aac_compat_ioctl,
1050 #endif
1051 	.queuecommand			= aac_queuecommand,
1052 	.bios_param			= aac_biosparm,
1053 	.shost_attrs			= aac_attrs,
1054 	.slave_configure		= aac_slave_configure,
1055 	.change_queue_depth		= aac_change_queue_depth,
1056 	.sdev_attrs			= aac_dev_attrs,
1057 	.eh_abort_handler		= aac_eh_abort,
1058 	.eh_host_reset_handler		= aac_eh_reset,
1059 	.can_queue			= AAC_NUM_IO_FIB,
1060 	.this_id			= MAXIMUM_NUM_CONTAINERS,
1061 	.sg_tablesize			= 16,
1062 	.max_sectors			= 128,
1063 #if (AAC_NUM_IO_FIB > 256)
1064 	.cmd_per_lun			= 256,
1065 #else
1066 	.cmd_per_lun			= AAC_NUM_IO_FIB,
1067 #endif
1068 	.use_clustering			= ENABLE_CLUSTERING,
1069 	.emulated			= 1,
1070 	.no_write_same			= 1,
1071 };
1072 
1073 static void __aac_shutdown(struct aac_dev * aac)
1074 {
1075 	int i;
1076 	int cpu;
1077 
1078 	if (aac->aif_thread) {
1079 		int i;
1080 		/* Clear out events first */
1081 		for (i = 0; i < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); i++) {
1082 			struct fib *fib = &aac->fibs[i];
1083 			if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) &&
1084 			    (fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected)))
1085 				up(&fib->event_wait);
1086 		}
1087 		kthread_stop(aac->thread);
1088 	}
1089 	aac_send_shutdown(aac);
1090 	aac_adapter_disable_int(aac);
1091 	cpu = cpumask_first(cpu_online_mask);
1092 	if (aac->pdev->device == PMC_DEVICE_S6 ||
1093 	    aac->pdev->device == PMC_DEVICE_S7 ||
1094 	    aac->pdev->device == PMC_DEVICE_S8 ||
1095 	    aac->pdev->device == PMC_DEVICE_S9) {
1096 		if (aac->max_msix > 1) {
1097 			for (i = 0; i < aac->max_msix; i++) {
1098 				if (irq_set_affinity_hint(
1099 				    aac->msixentry[i].vector,
1100 				    NULL)) {
1101 					printk(KERN_ERR "%s%d: Failed to reset IRQ affinity for cpu %d\n",
1102 						aac->name,
1103 						aac->id,
1104 						cpu);
1105 				}
1106 				cpu = cpumask_next(cpu,
1107 						cpu_online_mask);
1108 				free_irq(aac->msixentry[i].vector,
1109 					 &(aac->aac_msix[i]));
1110 			}
1111 		} else {
1112 			free_irq(aac->pdev->irq,
1113 				 &(aac->aac_msix[0]));
1114 		}
1115 	} else {
1116 		free_irq(aac->pdev->irq, aac);
1117 	}
1118 	if (aac->msi)
1119 		pci_disable_msi(aac->pdev);
1120 	else if (aac->max_msix > 1)
1121 		pci_disable_msix(aac->pdev);
1122 }
1123 
1124 static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1125 {
1126 	unsigned index = id->driver_data;
1127 	struct Scsi_Host *shost;
1128 	struct aac_dev *aac;
1129 	struct list_head *insert = &aac_devices;
1130 	int error = -ENODEV;
1131 	int unique_id = 0;
1132 	u64 dmamask;
1133 	extern int aac_sync_mode;
1134 
1135 	list_for_each_entry(aac, &aac_devices, entry) {
1136 		if (aac->id > unique_id)
1137 			break;
1138 		insert = &aac->entry;
1139 		unique_id++;
1140 	}
1141 
1142 	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
1143 			       PCIE_LINK_STATE_CLKPM);
1144 
1145 	error = pci_enable_device(pdev);
1146 	if (error)
1147 		goto out;
1148 	error = -ENODEV;
1149 
1150 	/*
1151 	 * If the quirk31 bit is set, the adapter needs adapter
1152 	 * to driver communication memory to be allocated below 2gig
1153 	 */
1154 	if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
1155 		dmamask = DMA_BIT_MASK(31);
1156 	else
1157 		dmamask = DMA_BIT_MASK(32);
1158 
1159 	if (pci_set_dma_mask(pdev, dmamask) ||
1160 			pci_set_consistent_dma_mask(pdev, dmamask))
1161 		goto out_disable_pdev;
1162 
1163 	pci_set_master(pdev);
1164 
1165 	shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
1166 	if (!shost)
1167 		goto out_disable_pdev;
1168 
1169 	shost->irq = pdev->irq;
1170 	shost->unique_id = unique_id;
1171 	shost->max_cmd_len = 16;
1172 	shost->use_cmd_list = 1;
1173 
1174 	aac = (struct aac_dev *)shost->hostdata;
1175 	aac->base_start = pci_resource_start(pdev, 0);
1176 	aac->scsi_host_ptr = shost;
1177 	aac->pdev = pdev;
1178 	aac->name = aac_driver_template.name;
1179 	aac->id = shost->unique_id;
1180 	aac->cardtype = index;
1181 	INIT_LIST_HEAD(&aac->entry);
1182 
1183 	aac->fibs = kzalloc(sizeof(struct fib) * (shost->can_queue + AAC_NUM_MGT_FIB), GFP_KERNEL);
1184 	if (!aac->fibs)
1185 		goto out_free_host;
1186 	spin_lock_init(&aac->fib_lock);
1187 
1188 	/*
1189 	 *	Map in the registers from the adapter.
1190 	 */
1191 	aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
1192 	if ((*aac_drivers[index].init)(aac))
1193 		goto out_unmap;
1194 
1195 	if (aac->sync_mode) {
1196 		if (aac_sync_mode)
1197 			printk(KERN_INFO "%s%d: Sync. mode enforced "
1198 				"by driver parameter. This will cause "
1199 				"a significant performance decrease!\n",
1200 				aac->name,
1201 				aac->id);
1202 		else
1203 			printk(KERN_INFO "%s%d: Async. mode not supported "
1204 				"by current driver, sync. mode enforced."
1205 				"\nPlease update driver to get full performance.\n",
1206 				aac->name,
1207 				aac->id);
1208 	}
1209 
1210 	/*
1211 	 *	Start any kernel threads needed
1212 	 */
1213 	aac->thread = kthread_run(aac_command_thread, aac, AAC_DRIVERNAME);
1214 	if (IS_ERR(aac->thread)) {
1215 		printk(KERN_ERR "aacraid: Unable to create command thread.\n");
1216 		error = PTR_ERR(aac->thread);
1217 		aac->thread = NULL;
1218 		goto out_deinit;
1219 	}
1220 
1221 	/*
1222 	 * If we had set a smaller DMA mask earlier, set it to 4gig
1223 	 * now since the adapter can dma data to at least a 4gig
1224 	 * address space.
1225 	 */
1226 	if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
1227 		if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
1228 			goto out_deinit;
1229 
1230 	aac->maximum_num_channels = aac_drivers[index].channels;
1231 	error = aac_get_adapter_info(aac);
1232 	if (error < 0)
1233 		goto out_deinit;
1234 
1235 	/*
1236 	 * Lets override negotiations and drop the maximum SG limit to 34
1237 	 */
1238 	if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) &&
1239 			(shost->sg_tablesize > 34)) {
1240 		shost->sg_tablesize = 34;
1241 		shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1242 	}
1243 
1244 	if ((aac_drivers[index].quirks & AAC_QUIRK_17SG) &&
1245 			(shost->sg_tablesize > 17)) {
1246 		shost->sg_tablesize = 17;
1247 		shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1248 	}
1249 
1250 	error = pci_set_dma_max_seg_size(pdev,
1251 		(aac->adapter_info.options & AAC_OPT_NEW_COMM) ?
1252 			(shost->max_sectors << 9) : 65536);
1253 	if (error)
1254 		goto out_deinit;
1255 
1256 	/*
1257 	 * Firmware printf works only with older firmware.
1258 	 */
1259 	if (aac_drivers[index].quirks & AAC_QUIRK_34SG)
1260 		aac->printf_enabled = 1;
1261 	else
1262 		aac->printf_enabled = 0;
1263 
1264 	/*
1265 	 * max channel will be the physical channels plus 1 virtual channel
1266 	 * all containers are on the virtual channel 0 (CONTAINER_CHANNEL)
1267 	 * physical channels are address by their actual physical number+1
1268 	 */
1269 	if (aac->nondasd_support || expose_physicals || aac->jbod)
1270 		shost->max_channel = aac->maximum_num_channels;
1271 	else
1272 		shost->max_channel = 0;
1273 
1274 	aac_get_config_status(aac, 0);
1275 	aac_get_containers(aac);
1276 	list_add(&aac->entry, insert);
1277 
1278 	shost->max_id = aac->maximum_num_containers;
1279 	if (shost->max_id < aac->maximum_num_physicals)
1280 		shost->max_id = aac->maximum_num_physicals;
1281 	if (shost->max_id < MAXIMUM_NUM_CONTAINERS)
1282 		shost->max_id = MAXIMUM_NUM_CONTAINERS;
1283 	else
1284 		shost->this_id = shost->max_id;
1285 
1286 	/*
1287 	 * dmb - we may need to move the setting of these parms somewhere else once
1288 	 * we get a fib that can report the actual numbers
1289 	 */
1290 	shost->max_lun = AAC_MAX_LUN;
1291 
1292 	pci_set_drvdata(pdev, shost);
1293 
1294 	error = scsi_add_host(shost, &pdev->dev);
1295 	if (error)
1296 		goto out_deinit;
1297 	scsi_scan_host(shost);
1298 
1299 	return 0;
1300 
1301  out_deinit:
1302 	__aac_shutdown(aac);
1303  out_unmap:
1304 	aac_fib_map_free(aac);
1305 	if (aac->comm_addr)
1306 		pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
1307 		  aac->comm_phys);
1308 	kfree(aac->queues);
1309 	aac_adapter_ioremap(aac, 0);
1310 	kfree(aac->fibs);
1311 	kfree(aac->fsa_dev);
1312  out_free_host:
1313 	scsi_host_put(shost);
1314  out_disable_pdev:
1315 	pci_disable_device(pdev);
1316  out:
1317 	return error;
1318 }
1319 
1320 static void aac_shutdown(struct pci_dev *dev)
1321 {
1322 	struct Scsi_Host *shost = pci_get_drvdata(dev);
1323 	scsi_block_requests(shost);
1324 	__aac_shutdown((struct aac_dev *)shost->hostdata);
1325 }
1326 
1327 static void aac_remove_one(struct pci_dev *pdev)
1328 {
1329 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
1330 	struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1331 
1332 	scsi_remove_host(shost);
1333 
1334 	__aac_shutdown(aac);
1335 	aac_fib_map_free(aac);
1336 	pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
1337 			aac->comm_phys);
1338 	kfree(aac->queues);
1339 
1340 	aac_adapter_ioremap(aac, 0);
1341 
1342 	kfree(aac->fibs);
1343 	kfree(aac->fsa_dev);
1344 
1345 	list_del(&aac->entry);
1346 	scsi_host_put(shost);
1347 	pci_disable_device(pdev);
1348 	if (list_empty(&aac_devices)) {
1349 		unregister_chrdev(aac_cfg_major, "aac");
1350 		aac_cfg_major = -1;
1351 	}
1352 }
1353 
1354 static struct pci_driver aac_pci_driver = {
1355 	.name		= AAC_DRIVERNAME,
1356 	.id_table	= aac_pci_tbl,
1357 	.probe		= aac_probe_one,
1358 	.remove		= aac_remove_one,
1359 	.shutdown	= aac_shutdown,
1360 };
1361 
1362 static int __init aac_init(void)
1363 {
1364 	int error;
1365 
1366 	printk(KERN_INFO "Adaptec %s driver %s\n",
1367 	  AAC_DRIVERNAME, aac_driver_version);
1368 
1369 	error = pci_register_driver(&aac_pci_driver);
1370 	if (error < 0)
1371 		return error;
1372 
1373 	aac_cfg_major = register_chrdev( 0, "aac", &aac_cfg_fops);
1374 	if (aac_cfg_major < 0) {
1375 		printk(KERN_WARNING
1376 			"aacraid: unable to register \"aac\" device.\n");
1377 	}
1378 
1379 	return 0;
1380 }
1381 
1382 static void __exit aac_exit(void)
1383 {
1384 	if (aac_cfg_major > -1)
1385 		unregister_chrdev(aac_cfg_major, "aac");
1386 	pci_unregister_driver(&aac_pci_driver);
1387 }
1388 
1389 module_init(aac_init);
1390 module_exit(aac_exit);
1391