xref: /openbmc/linux/drivers/scsi/aacraid/linit.c (revision c1d45424)
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		"1.2-0"
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_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
255 {
256 	struct Scsi_Host *host = cmd->device->host;
257 	struct aac_dev *dev = (struct aac_dev *)host->hostdata;
258 	u32 count = 0;
259 	cmd->scsi_done = done;
260 	for (; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
261 		struct fib * fib = &dev->fibs[count];
262 		struct scsi_cmnd * command;
263 		if (fib->hw_fib_va->header.XferState &&
264 		    ((command = fib->callback_data)) &&
265 		    (command == cmd) &&
266 		    (cmd->SCp.phase == AAC_OWNER_FIRMWARE))
267 			return 0; /* Already owned by Adapter */
268 	}
269 	cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
270 	return (aac_scsi_cmd(cmd) ? FAILED : 0);
271 }
272 
273 static DEF_SCSI_QCMD(aac_queuecommand)
274 
275 /**
276  *	aac_info		-	Returns the host adapter name
277  *	@shost:		Scsi host to report on
278  *
279  *	Returns a static string describing the device in question
280  */
281 
282 static const char *aac_info(struct Scsi_Host *shost)
283 {
284 	struct aac_dev *dev = (struct aac_dev *)shost->hostdata;
285 	return aac_drivers[dev->cardtype].name;
286 }
287 
288 /**
289  *	aac_get_driver_ident
290  *	@devtype: index into lookup table
291  *
292  *	Returns a pointer to the entry in the driver lookup table.
293  */
294 
295 struct aac_driver_ident* aac_get_driver_ident(int devtype)
296 {
297 	return &aac_drivers[devtype];
298 }
299 
300 /**
301  *	aac_biosparm	-	return BIOS parameters for disk
302  *	@sdev: The scsi device corresponding to the disk
303  *	@bdev: the block device corresponding to the disk
304  *	@capacity: the sector capacity of the disk
305  *	@geom: geometry block to fill in
306  *
307  *	Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk.
308  *	The default disk geometry is 64 heads, 32 sectors, and the appropriate
309  *	number of cylinders so as not to exceed drive capacity.  In order for
310  *	disks equal to or larger than 1 GB to be addressable by the BIOS
311  *	without exceeding the BIOS limitation of 1024 cylinders, Extended
312  *	Translation should be enabled.   With Extended Translation enabled,
313  *	drives between 1 GB inclusive and 2 GB exclusive are given a disk
314  *	geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive
315  *	are given a disk geometry of 255 heads and 63 sectors.  However, if
316  *	the BIOS detects that the Extended Translation setting does not match
317  *	the geometry in the partition table, then the translation inferred
318  *	from the partition table will be used by the BIOS, and a warning may
319  *	be displayed.
320  */
321 
322 static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
323 			sector_t capacity, int *geom)
324 {
325 	struct diskparm *param = (struct diskparm *)geom;
326 	unsigned char *buf;
327 
328 	dprintk((KERN_DEBUG "aac_biosparm.\n"));
329 
330 	/*
331 	 *	Assuming extended translation is enabled - #REVISIT#
332 	 */
333 	if (capacity >= 2 * 1024 * 1024) { /* 1 GB in 512 byte sectors */
334 		if(capacity >= 4 * 1024 * 1024) { /* 2 GB in 512 byte sectors */
335 			param->heads = 255;
336 			param->sectors = 63;
337 		} else {
338 			param->heads = 128;
339 			param->sectors = 32;
340 		}
341 	} else {
342 		param->heads = 64;
343 		param->sectors = 32;
344 	}
345 
346 	param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
347 
348 	/*
349 	 *	Read the first 1024 bytes from the disk device, if the boot
350 	 *	sector partition table is valid, search for a partition table
351 	 *	entry whose end_head matches one of the standard geometry
352 	 *	translations ( 64/32, 128/32, 255/63 ).
353 	 */
354 	buf = scsi_bios_ptable(bdev);
355 	if (!buf)
356 		return 0;
357 	if(*(__le16 *)(buf + 0x40) == cpu_to_le16(0xaa55)) {
358 		struct partition *first = (struct partition * )buf;
359 		struct partition *entry = first;
360 		int saved_cylinders = param->cylinders;
361 		int num;
362 		unsigned char end_head, end_sec;
363 
364 		for(num = 0; num < 4; num++) {
365 			end_head = entry->end_head;
366 			end_sec = entry->end_sector & 0x3f;
367 
368 			if(end_head == 63) {
369 				param->heads = 64;
370 				param->sectors = 32;
371 				break;
372 			} else if(end_head == 127) {
373 				param->heads = 128;
374 				param->sectors = 32;
375 				break;
376 			} else if(end_head == 254) {
377 				param->heads = 255;
378 				param->sectors = 63;
379 				break;
380 			}
381 			entry++;
382 		}
383 
384 		if (num == 4) {
385 			end_head = first->end_head;
386 			end_sec = first->end_sector & 0x3f;
387 		}
388 
389 		param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
390 		if (num < 4 && end_sec == param->sectors) {
391 			if (param->cylinders != saved_cylinders)
392 				dprintk((KERN_DEBUG "Adopting geometry: heads=%d, sectors=%d from partition table %d.\n",
393 					param->heads, param->sectors, num));
394 		} else if (end_head > 0 || end_sec > 0) {
395 			dprintk((KERN_DEBUG "Strange geometry: heads=%d, sectors=%d in partition table %d.\n",
396 				end_head + 1, end_sec, num));
397 			dprintk((KERN_DEBUG "Using geometry: heads=%d, sectors=%d.\n",
398 					param->heads, param->sectors));
399 		}
400 	}
401 	kfree(buf);
402 	return 0;
403 }
404 
405 /**
406  *	aac_slave_configure		-	compute queue depths
407  *	@sdev:	SCSI device we are considering
408  *
409  *	Selects queue depths for each target device based on the host adapter's
410  *	total capacity and the queue depth supported by the target device.
411  *	A queue depth of one automatically disables tagged queueing.
412  */
413 
414 static int aac_slave_configure(struct scsi_device *sdev)
415 {
416 	struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
417 	if (aac->jbod && (sdev->type == TYPE_DISK))
418 		sdev->removable = 1;
419 	if ((sdev->type == TYPE_DISK) &&
420 			(sdev_channel(sdev) != CONTAINER_CHANNEL) &&
421 			(!aac->jbod || sdev->inq_periph_qual) &&
422 			(!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))) {
423 		if (expose_physicals == 0)
424 			return -ENXIO;
425 		if (expose_physicals < 0)
426 			sdev->no_uld_attach = 1;
427 	}
428 	if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
429 			(!aac->raid_scsi_mode || (sdev_channel(sdev) != 2)) &&
430 			!sdev->no_uld_attach) {
431 		struct scsi_device * dev;
432 		struct Scsi_Host *host = sdev->host;
433 		unsigned num_lsu = 0;
434 		unsigned num_one = 0;
435 		unsigned depth;
436 		unsigned cid;
437 
438 		/*
439 		 * Firmware has an individual device recovery time typically
440 		 * of 35 seconds, give us a margin.
441 		 */
442 		if (sdev->request_queue->rq_timeout < (45 * HZ))
443 			blk_queue_rq_timeout(sdev->request_queue, 45*HZ);
444 		for (cid = 0; cid < aac->maximum_num_containers; ++cid)
445 			if (aac->fsa_dev[cid].valid)
446 				++num_lsu;
447 		__shost_for_each_device(dev, host) {
448 			if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
449 					(!aac->raid_scsi_mode ||
450 						(sdev_channel(sdev) != 2)) &&
451 					!dev->no_uld_attach) {
452 				if ((sdev_channel(dev) != CONTAINER_CHANNEL)
453 				 || !aac->fsa_dev[sdev_id(dev)].valid)
454 					++num_lsu;
455 			} else
456 				++num_one;
457 		}
458 		if (num_lsu == 0)
459 			++num_lsu;
460 		depth = (host->can_queue - num_one) / num_lsu;
461 		if (depth > 256)
462 			depth = 256;
463 		else if (depth < 2)
464 			depth = 2;
465 		scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth);
466 	} else
467 		scsi_adjust_queue_depth(sdev, 0, 1);
468 
469 	return 0;
470 }
471 
472 /**
473  *	aac_change_queue_depth		-	alter queue depths
474  *	@sdev:	SCSI device we are considering
475  *	@depth:	desired queue depth
476  *
477  *	Alters queue depths for target device based on the host adapter's
478  *	total capacity and the queue depth supported by the target device.
479  */
480 
481 static int aac_change_queue_depth(struct scsi_device *sdev, int depth,
482 				  int reason)
483 {
484 	if (reason != SCSI_QDEPTH_DEFAULT)
485 		return -EOPNOTSUPP;
486 
487 	if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
488 	    (sdev_channel(sdev) == CONTAINER_CHANNEL)) {
489 		struct scsi_device * dev;
490 		struct Scsi_Host *host = sdev->host;
491 		unsigned num = 0;
492 
493 		__shost_for_each_device(dev, host) {
494 			if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
495 			    (sdev_channel(dev) == CONTAINER_CHANNEL))
496 				++num;
497 			++num;
498 		}
499 		if (num >= host->can_queue)
500 			num = host->can_queue - 1;
501 		if (depth > (host->can_queue - num))
502 			depth = host->can_queue - num;
503 		if (depth > 256)
504 			depth = 256;
505 		else if (depth < 2)
506 			depth = 2;
507 		scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth);
508 	} else
509 		scsi_adjust_queue_depth(sdev, 0, 1);
510 	return sdev->queue_depth;
511 }
512 
513 static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf)
514 {
515 	struct scsi_device *sdev = to_scsi_device(dev);
516 	struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
517 	if (sdev_channel(sdev) != CONTAINER_CHANNEL)
518 		return snprintf(buf, PAGE_SIZE, sdev->no_uld_attach
519 		  ? "Hidden\n" :
520 		  ((aac->jbod && (sdev->type == TYPE_DISK)) ? "JBOD\n" : ""));
521 	return snprintf(buf, PAGE_SIZE, "%s\n",
522 	  get_container_type(aac->fsa_dev[sdev_id(sdev)].type));
523 }
524 
525 static struct device_attribute aac_raid_level_attr = {
526 	.attr = {
527 		.name = "level",
528 		.mode = S_IRUGO,
529 	},
530 	.show = aac_show_raid_level
531 };
532 
533 static struct device_attribute *aac_dev_attrs[] = {
534 	&aac_raid_level_attr,
535 	NULL,
536 };
537 
538 static int aac_ioctl(struct scsi_device *sdev, int cmd, void __user * arg)
539 {
540 	struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
541 	if (!capable(CAP_SYS_RAWIO))
542 		return -EPERM;
543 	return aac_do_ioctl(dev, cmd, arg);
544 }
545 
546 static int aac_eh_abort(struct scsi_cmnd* cmd)
547 {
548 	struct scsi_device * dev = cmd->device;
549 	struct Scsi_Host * host = dev->host;
550 	struct aac_dev * aac = (struct aac_dev *)host->hostdata;
551 	int count;
552 	int ret = FAILED;
553 
554 	printk(KERN_ERR "%s: Host adapter abort request (%d,%d,%d,%d)\n",
555 		AAC_DRIVERNAME,
556 		host->host_no, sdev_channel(dev), sdev_id(dev), dev->lun);
557 	switch (cmd->cmnd[0]) {
558 	case SERVICE_ACTION_IN:
559 		if (!(aac->raw_io_interface) ||
560 		    !(aac->raw_io_64) ||
561 		    ((cmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
562 			break;
563 	case INQUIRY:
564 	case READ_CAPACITY:
565 		/* Mark associated FIB to not complete, eh handler does this */
566 		for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
567 			struct fib * fib = &aac->fibs[count];
568 			if (fib->hw_fib_va->header.XferState &&
569 			  (fib->flags & FIB_CONTEXT_FLAG) &&
570 			  (fib->callback_data == cmd)) {
571 				fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
572 				cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
573 				ret = SUCCESS;
574 			}
575 		}
576 		break;
577 	case TEST_UNIT_READY:
578 		/* Mark associated FIB to not complete, eh handler does this */
579 		for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
580 			struct scsi_cmnd * command;
581 			struct fib * fib = &aac->fibs[count];
582 			if ((fib->hw_fib_va->header.XferState & cpu_to_le32(Async | NoResponseExpected)) &&
583 			  (fib->flags & FIB_CONTEXT_FLAG) &&
584 			  ((command = fib->callback_data)) &&
585 			  (command->device == cmd->device)) {
586 				fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
587 				command->SCp.phase = AAC_OWNER_ERROR_HANDLER;
588 				if (command == cmd)
589 					ret = SUCCESS;
590 			}
591 		}
592 	}
593 	return ret;
594 }
595 
596 /*
597  *	aac_eh_reset	- Reset command handling
598  *	@scsi_cmd:	SCSI command block causing the reset
599  *
600  */
601 static int aac_eh_reset(struct scsi_cmnd* cmd)
602 {
603 	struct scsi_device * dev = cmd->device;
604 	struct Scsi_Host * host = dev->host;
605 	struct scsi_cmnd * command;
606 	int count;
607 	struct aac_dev * aac = (struct aac_dev *)host->hostdata;
608 	unsigned long flags;
609 
610 	/* Mark the associated FIB to not complete, eh handler does this */
611 	for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
612 		struct fib * fib = &aac->fibs[count];
613 		if (fib->hw_fib_va->header.XferState &&
614 		  (fib->flags & FIB_CONTEXT_FLAG) &&
615 		  (fib->callback_data == cmd)) {
616 			fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
617 			cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
618 		}
619 	}
620 	printk(KERN_ERR "%s: Host adapter reset request. SCSI hang ?\n",
621 					AAC_DRIVERNAME);
622 
623 	if ((count = aac_check_health(aac)))
624 		return count;
625 	/*
626 	 * Wait for all commands to complete to this specific
627 	 * target (block maximum 60 seconds).
628 	 */
629 	for (count = 60; count; --count) {
630 		int active = aac->in_reset;
631 
632 		if (active == 0)
633 		__shost_for_each_device(dev, host) {
634 			spin_lock_irqsave(&dev->list_lock, flags);
635 			list_for_each_entry(command, &dev->cmd_list, list) {
636 				if ((command != cmd) &&
637 				    (command->SCp.phase == AAC_OWNER_FIRMWARE)) {
638 					active++;
639 					break;
640 				}
641 			}
642 			spin_unlock_irqrestore(&dev->list_lock, flags);
643 			if (active)
644 				break;
645 
646 		}
647 		/*
648 		 * We can exit If all the commands are complete
649 		 */
650 		if (active == 0)
651 			return SUCCESS;
652 		ssleep(1);
653 	}
654 	printk(KERN_ERR "%s: SCSI bus appears hung\n", AAC_DRIVERNAME);
655 	/*
656 	 * This adapter needs a blind reset, only do so for Adapters that
657 	 * support a register, instead of a commanded, reset.
658 	 */
659 	if (((aac->supplement_adapter_info.SupportedOptions2 &
660 	  AAC_OPTION_MU_RESET) ||
661 	  (aac->supplement_adapter_info.SupportedOptions2 &
662 	  AAC_OPTION_DOORBELL_RESET)) &&
663 	  aac_check_reset &&
664 	  ((aac_check_reset != 1) ||
665 	   !(aac->supplement_adapter_info.SupportedOptions2 &
666 	    AAC_OPTION_IGNORE_RESET)))
667 		aac_reset_adapter(aac, 2); /* Bypass wait for command quiesce */
668 	return SUCCESS; /* Cause an immediate retry of the command with a ten second delay after successful tur */
669 }
670 
671 /**
672  *	aac_cfg_open		-	open a configuration file
673  *	@inode: inode being opened
674  *	@file: file handle attached
675  *
676  *	Called when the configuration device is opened. Does the needed
677  *	set up on the handle and then returns
678  *
679  *	Bugs: This needs extending to check a given adapter is present
680  *	so we can support hot plugging, and to ref count adapters.
681  */
682 
683 static int aac_cfg_open(struct inode *inode, struct file *file)
684 {
685 	struct aac_dev *aac;
686 	unsigned minor_number = iminor(inode);
687 	int err = -ENODEV;
688 
689 	mutex_lock(&aac_mutex);  /* BKL pushdown: nothing else protects this list */
690 	list_for_each_entry(aac, &aac_devices, entry) {
691 		if (aac->id == minor_number) {
692 			file->private_data = aac;
693 			err = 0;
694 			break;
695 		}
696 	}
697 	mutex_unlock(&aac_mutex);
698 
699 	return err;
700 }
701 
702 /**
703  *	aac_cfg_ioctl		-	AAC configuration request
704  *	@inode: inode of device
705  *	@file: file handle
706  *	@cmd: ioctl command code
707  *	@arg: argument
708  *
709  *	Handles a configuration ioctl. Currently this involves wrapping it
710  *	up and feeding it into the nasty windowsalike glue layer.
711  *
712  *	Bugs: Needs locking against parallel ioctls lower down
713  *	Bugs: Needs to handle hot plugging
714  */
715 
716 static long aac_cfg_ioctl(struct file *file,
717 		unsigned int cmd, unsigned long arg)
718 {
719 	int ret;
720 	if (!capable(CAP_SYS_RAWIO))
721 		return -EPERM;
722 	mutex_lock(&aac_mutex);
723 	ret = aac_do_ioctl(file->private_data, cmd, (void __user *)arg);
724 	mutex_unlock(&aac_mutex);
725 
726 	return ret;
727 }
728 
729 #ifdef CONFIG_COMPAT
730 static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long arg)
731 {
732 	long ret;
733 	mutex_lock(&aac_mutex);
734 	switch (cmd) {
735 	case FSACTL_MINIPORT_REV_CHECK:
736 	case FSACTL_SENDFIB:
737 	case FSACTL_OPEN_GET_ADAPTER_FIB:
738 	case FSACTL_CLOSE_GET_ADAPTER_FIB:
739 	case FSACTL_SEND_RAW_SRB:
740 	case FSACTL_GET_PCI_INFO:
741 	case FSACTL_QUERY_DISK:
742 	case FSACTL_DELETE_DISK:
743 	case FSACTL_FORCE_DELETE_DISK:
744 	case FSACTL_GET_CONTAINERS:
745 	case FSACTL_SEND_LARGE_FIB:
746 		ret = aac_do_ioctl(dev, cmd, (void __user *)arg);
747 		break;
748 
749 	case FSACTL_GET_NEXT_ADAPTER_FIB: {
750 		struct fib_ioctl __user *f;
751 
752 		f = compat_alloc_user_space(sizeof(*f));
753 		ret = 0;
754 		if (clear_user(f, sizeof(*f)))
755 			ret = -EFAULT;
756 		if (copy_in_user(f, (void __user *)arg, sizeof(struct fib_ioctl) - sizeof(u32)))
757 			ret = -EFAULT;
758 		if (!ret)
759 			ret = aac_do_ioctl(dev, cmd, f);
760 		break;
761 	}
762 
763 	default:
764 		ret = -ENOIOCTLCMD;
765 		break;
766 	}
767 	mutex_unlock(&aac_mutex);
768 	return ret;
769 }
770 
771 static int aac_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
772 {
773 	struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
774 	return aac_compat_do_ioctl(dev, cmd, (unsigned long)arg);
775 }
776 
777 static long aac_compat_cfg_ioctl(struct file *file, unsigned cmd, unsigned long arg)
778 {
779 	if (!capable(CAP_SYS_RAWIO))
780 		return -EPERM;
781 	return aac_compat_do_ioctl(file->private_data, cmd, arg);
782 }
783 #endif
784 
785 static ssize_t aac_show_model(struct device *device,
786 			      struct device_attribute *attr, char *buf)
787 {
788 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
789 	int len;
790 
791 	if (dev->supplement_adapter_info.AdapterTypeText[0]) {
792 		char * cp = dev->supplement_adapter_info.AdapterTypeText;
793 		while (*cp && *cp != ' ')
794 			++cp;
795 		while (*cp == ' ')
796 			++cp;
797 		len = snprintf(buf, PAGE_SIZE, "%s\n", cp);
798 	} else
799 		len = snprintf(buf, PAGE_SIZE, "%s\n",
800 		  aac_drivers[dev->cardtype].model);
801 	return len;
802 }
803 
804 static ssize_t aac_show_vendor(struct device *device,
805 			       struct device_attribute *attr, char *buf)
806 {
807 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
808 	int len;
809 
810 	if (dev->supplement_adapter_info.AdapterTypeText[0]) {
811 		char * cp = dev->supplement_adapter_info.AdapterTypeText;
812 		while (*cp && *cp != ' ')
813 			++cp;
814 		len = snprintf(buf, PAGE_SIZE, "%.*s\n",
815 		  (int)(cp - (char *)dev->supplement_adapter_info.AdapterTypeText),
816 		  dev->supplement_adapter_info.AdapterTypeText);
817 	} else
818 		len = snprintf(buf, PAGE_SIZE, "%s\n",
819 		  aac_drivers[dev->cardtype].vname);
820 	return len;
821 }
822 
823 static ssize_t aac_show_flags(struct device *cdev,
824 			      struct device_attribute *attr, char *buf)
825 {
826 	int len = 0;
827 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(cdev)->hostdata;
828 
829 	if (nblank(dprintk(x)))
830 		len = snprintf(buf, PAGE_SIZE, "dprintk\n");
831 #ifdef AAC_DETAILED_STATUS_INFO
832 	len += snprintf(buf + len, PAGE_SIZE - len,
833 			"AAC_DETAILED_STATUS_INFO\n");
834 #endif
835 	if (dev->raw_io_interface && dev->raw_io_64)
836 		len += snprintf(buf + len, PAGE_SIZE - len,
837 				"SAI_READ_CAPACITY_16\n");
838 	if (dev->jbod)
839 		len += snprintf(buf + len, PAGE_SIZE - len, "SUPPORTED_JBOD\n");
840 	if (dev->supplement_adapter_info.SupportedOptions2 &
841 		AAC_OPTION_POWER_MANAGEMENT)
842 		len += snprintf(buf + len, PAGE_SIZE - len,
843 				"SUPPORTED_POWER_MANAGEMENT\n");
844 	if (dev->msi)
845 		len += snprintf(buf + len, PAGE_SIZE - len, "PCI_HAS_MSI\n");
846 	return len;
847 }
848 
849 static ssize_t aac_show_kernel_version(struct device *device,
850 				       struct device_attribute *attr,
851 				       char *buf)
852 {
853 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
854 	int len, tmp;
855 
856 	tmp = le32_to_cpu(dev->adapter_info.kernelrev);
857 	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
858 	  tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
859 	  le32_to_cpu(dev->adapter_info.kernelbuild));
860 	return len;
861 }
862 
863 static ssize_t aac_show_monitor_version(struct device *device,
864 					struct device_attribute *attr,
865 					char *buf)
866 {
867 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
868 	int len, tmp;
869 
870 	tmp = le32_to_cpu(dev->adapter_info.monitorrev);
871 	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
872 	  tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
873 	  le32_to_cpu(dev->adapter_info.monitorbuild));
874 	return len;
875 }
876 
877 static ssize_t aac_show_bios_version(struct device *device,
878 				     struct device_attribute *attr,
879 				     char *buf)
880 {
881 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
882 	int len, tmp;
883 
884 	tmp = le32_to_cpu(dev->adapter_info.biosrev);
885 	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
886 	  tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
887 	  le32_to_cpu(dev->adapter_info.biosbuild));
888 	return len;
889 }
890 
891 static ssize_t aac_show_serial_number(struct device *device,
892 			       struct device_attribute *attr, char *buf)
893 {
894 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
895 	int len = 0;
896 
897 	if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
898 		len = snprintf(buf, 16, "%06X\n",
899 		  le32_to_cpu(dev->adapter_info.serial[0]));
900 	if (len &&
901 	  !memcmp(&dev->supplement_adapter_info.MfgPcbaSerialNo[
902 	    sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo)-len],
903 	  buf, len-1))
904 		len = snprintf(buf, 16, "%.*s\n",
905 		  (int)sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo),
906 		  dev->supplement_adapter_info.MfgPcbaSerialNo);
907 
908 	return min(len, 16);
909 }
910 
911 static ssize_t aac_show_max_channel(struct device *device,
912 				    struct device_attribute *attr, char *buf)
913 {
914 	return snprintf(buf, PAGE_SIZE, "%d\n",
915 	  class_to_shost(device)->max_channel);
916 }
917 
918 static ssize_t aac_show_max_id(struct device *device,
919 			       struct device_attribute *attr, char *buf)
920 {
921 	return snprintf(buf, PAGE_SIZE, "%d\n",
922 	  class_to_shost(device)->max_id);
923 }
924 
925 static ssize_t aac_store_reset_adapter(struct device *device,
926 				       struct device_attribute *attr,
927 				       const char *buf, size_t count)
928 {
929 	int retval = -EACCES;
930 
931 	if (!capable(CAP_SYS_ADMIN))
932 		return retval;
933 	retval = aac_reset_adapter((struct aac_dev*)class_to_shost(device)->hostdata, buf[0] == '!');
934 	if (retval >= 0)
935 		retval = count;
936 	return retval;
937 }
938 
939 static ssize_t aac_show_reset_adapter(struct device *device,
940 				      struct device_attribute *attr,
941 				      char *buf)
942 {
943 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
944 	int len, tmp;
945 
946 	tmp = aac_adapter_check_health(dev);
947 	if ((tmp == 0) && dev->in_reset)
948 		tmp = -EBUSY;
949 	len = snprintf(buf, PAGE_SIZE, "0x%x\n", tmp);
950 	return len;
951 }
952 
953 static struct device_attribute aac_model = {
954 	.attr = {
955 		.name = "model",
956 		.mode = S_IRUGO,
957 	},
958 	.show = aac_show_model,
959 };
960 static struct device_attribute aac_vendor = {
961 	.attr = {
962 		.name = "vendor",
963 		.mode = S_IRUGO,
964 	},
965 	.show = aac_show_vendor,
966 };
967 static struct device_attribute aac_flags = {
968 	.attr = {
969 		.name = "flags",
970 		.mode = S_IRUGO,
971 	},
972 	.show = aac_show_flags,
973 };
974 static struct device_attribute aac_kernel_version = {
975 	.attr = {
976 		.name = "hba_kernel_version",
977 		.mode = S_IRUGO,
978 	},
979 	.show = aac_show_kernel_version,
980 };
981 static struct device_attribute aac_monitor_version = {
982 	.attr = {
983 		.name = "hba_monitor_version",
984 		.mode = S_IRUGO,
985 	},
986 	.show = aac_show_monitor_version,
987 };
988 static struct device_attribute aac_bios_version = {
989 	.attr = {
990 		.name = "hba_bios_version",
991 		.mode = S_IRUGO,
992 	},
993 	.show = aac_show_bios_version,
994 };
995 static struct device_attribute aac_serial_number = {
996 	.attr = {
997 		.name = "serial_number",
998 		.mode = S_IRUGO,
999 	},
1000 	.show = aac_show_serial_number,
1001 };
1002 static struct device_attribute aac_max_channel = {
1003 	.attr = {
1004 		.name = "max_channel",
1005 		.mode = S_IRUGO,
1006 	},
1007 	.show = aac_show_max_channel,
1008 };
1009 static struct device_attribute aac_max_id = {
1010 	.attr = {
1011 		.name = "max_id",
1012 		.mode = S_IRUGO,
1013 	},
1014 	.show = aac_show_max_id,
1015 };
1016 static struct device_attribute aac_reset = {
1017 	.attr = {
1018 		.name = "reset_host",
1019 		.mode = S_IWUSR|S_IRUGO,
1020 	},
1021 	.store = aac_store_reset_adapter,
1022 	.show = aac_show_reset_adapter,
1023 };
1024 
1025 static struct device_attribute *aac_attrs[] = {
1026 	&aac_model,
1027 	&aac_vendor,
1028 	&aac_flags,
1029 	&aac_kernel_version,
1030 	&aac_monitor_version,
1031 	&aac_bios_version,
1032 	&aac_serial_number,
1033 	&aac_max_channel,
1034 	&aac_max_id,
1035 	&aac_reset,
1036 	NULL
1037 };
1038 
1039 ssize_t aac_get_serial_number(struct device *device, char *buf)
1040 {
1041 	return aac_show_serial_number(device, &aac_serial_number, buf);
1042 }
1043 
1044 static const struct file_operations aac_cfg_fops = {
1045 	.owner		= THIS_MODULE,
1046 	.unlocked_ioctl	= aac_cfg_ioctl,
1047 #ifdef CONFIG_COMPAT
1048 	.compat_ioctl   = aac_compat_cfg_ioctl,
1049 #endif
1050 	.open		= aac_cfg_open,
1051 	.llseek		= noop_llseek,
1052 };
1053 
1054 static struct scsi_host_template aac_driver_template = {
1055 	.module				= THIS_MODULE,
1056 	.name				= "AAC",
1057 	.proc_name			= AAC_DRIVERNAME,
1058 	.info				= aac_info,
1059 	.ioctl				= aac_ioctl,
1060 #ifdef CONFIG_COMPAT
1061 	.compat_ioctl			= aac_compat_ioctl,
1062 #endif
1063 	.queuecommand			= aac_queuecommand,
1064 	.bios_param			= aac_biosparm,
1065 	.shost_attrs			= aac_attrs,
1066 	.slave_configure		= aac_slave_configure,
1067 	.change_queue_depth		= aac_change_queue_depth,
1068 	.sdev_attrs			= aac_dev_attrs,
1069 	.eh_abort_handler		= aac_eh_abort,
1070 	.eh_host_reset_handler		= aac_eh_reset,
1071 	.can_queue			= AAC_NUM_IO_FIB,
1072 	.this_id			= MAXIMUM_NUM_CONTAINERS,
1073 	.sg_tablesize			= 16,
1074 	.max_sectors			= 128,
1075 #if (AAC_NUM_IO_FIB > 256)
1076 	.cmd_per_lun			= 256,
1077 #else
1078 	.cmd_per_lun			= AAC_NUM_IO_FIB,
1079 #endif
1080 	.use_clustering			= ENABLE_CLUSTERING,
1081 	.emulated			= 1,
1082 };
1083 
1084 static void __aac_shutdown(struct aac_dev * aac)
1085 {
1086 	if (aac->aif_thread) {
1087 		int i;
1088 		/* Clear out events first */
1089 		for (i = 0; i < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); i++) {
1090 			struct fib *fib = &aac->fibs[i];
1091 			if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) &&
1092 			    (fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected)))
1093 				up(&fib->event_wait);
1094 		}
1095 		kthread_stop(aac->thread);
1096 	}
1097 	aac_send_shutdown(aac);
1098 	aac_adapter_disable_int(aac);
1099 	free_irq(aac->pdev->irq, aac);
1100 	if (aac->msi)
1101 		pci_disable_msi(aac->pdev);
1102 }
1103 
1104 static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1105 {
1106 	unsigned index = id->driver_data;
1107 	struct Scsi_Host *shost;
1108 	struct aac_dev *aac;
1109 	struct list_head *insert = &aac_devices;
1110 	int error = -ENODEV;
1111 	int unique_id = 0;
1112 	u64 dmamask;
1113 	extern int aac_sync_mode;
1114 
1115 	list_for_each_entry(aac, &aac_devices, entry) {
1116 		if (aac->id > unique_id)
1117 			break;
1118 		insert = &aac->entry;
1119 		unique_id++;
1120 	}
1121 
1122 	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
1123 			       PCIE_LINK_STATE_CLKPM);
1124 
1125 	error = pci_enable_device(pdev);
1126 	if (error)
1127 		goto out;
1128 	error = -ENODEV;
1129 
1130 	/*
1131 	 * If the quirk31 bit is set, the adapter needs adapter
1132 	 * to driver communication memory to be allocated below 2gig
1133 	 */
1134 	if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
1135 		dmamask = DMA_BIT_MASK(31);
1136 	else
1137 		dmamask = DMA_BIT_MASK(32);
1138 
1139 	if (pci_set_dma_mask(pdev, dmamask) ||
1140 			pci_set_consistent_dma_mask(pdev, dmamask))
1141 		goto out_disable_pdev;
1142 
1143 	pci_set_master(pdev);
1144 
1145 	shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
1146 	if (!shost)
1147 		goto out_disable_pdev;
1148 
1149 	shost->irq = pdev->irq;
1150 	shost->unique_id = unique_id;
1151 	shost->max_cmd_len = 16;
1152 
1153 	aac = (struct aac_dev *)shost->hostdata;
1154 	aac->base_start = pci_resource_start(pdev, 0);
1155 	aac->scsi_host_ptr = shost;
1156 	aac->pdev = pdev;
1157 	aac->name = aac_driver_template.name;
1158 	aac->id = shost->unique_id;
1159 	aac->cardtype = index;
1160 	INIT_LIST_HEAD(&aac->entry);
1161 
1162 	aac->fibs = kzalloc(sizeof(struct fib) * (shost->can_queue + AAC_NUM_MGT_FIB), GFP_KERNEL);
1163 	if (!aac->fibs)
1164 		goto out_free_host;
1165 	spin_lock_init(&aac->fib_lock);
1166 
1167 	/*
1168 	 *	Map in the registers from the adapter.
1169 	 */
1170 	aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
1171 	if ((*aac_drivers[index].init)(aac))
1172 		goto out_unmap;
1173 
1174 	if (aac->sync_mode) {
1175 		if (aac_sync_mode)
1176 			printk(KERN_INFO "%s%d: Sync. mode enforced "
1177 				"by driver parameter. This will cause "
1178 				"a significant performance decrease!\n",
1179 				aac->name,
1180 				aac->id);
1181 		else
1182 			printk(KERN_INFO "%s%d: Async. mode not supported "
1183 				"by current driver, sync. mode enforced."
1184 				"\nPlease update driver to get full performance.\n",
1185 				aac->name,
1186 				aac->id);
1187 	}
1188 
1189 	/*
1190 	 *	Start any kernel threads needed
1191 	 */
1192 	aac->thread = kthread_run(aac_command_thread, aac, AAC_DRIVERNAME);
1193 	if (IS_ERR(aac->thread)) {
1194 		printk(KERN_ERR "aacraid: Unable to create command thread.\n");
1195 		error = PTR_ERR(aac->thread);
1196 		aac->thread = NULL;
1197 		goto out_deinit;
1198 	}
1199 
1200 	/*
1201 	 * If we had set a smaller DMA mask earlier, set it to 4gig
1202 	 * now since the adapter can dma data to at least a 4gig
1203 	 * address space.
1204 	 */
1205 	if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
1206 		if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
1207 			goto out_deinit;
1208 
1209 	aac->maximum_num_channels = aac_drivers[index].channels;
1210 	error = aac_get_adapter_info(aac);
1211 	if (error < 0)
1212 		goto out_deinit;
1213 
1214 	/*
1215 	 * Lets override negotiations and drop the maximum SG limit to 34
1216 	 */
1217 	if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) &&
1218 			(shost->sg_tablesize > 34)) {
1219 		shost->sg_tablesize = 34;
1220 		shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1221 	}
1222 
1223 	if ((aac_drivers[index].quirks & AAC_QUIRK_17SG) &&
1224 			(shost->sg_tablesize > 17)) {
1225 		shost->sg_tablesize = 17;
1226 		shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1227 	}
1228 
1229 	error = pci_set_dma_max_seg_size(pdev,
1230 		(aac->adapter_info.options & AAC_OPT_NEW_COMM) ?
1231 			(shost->max_sectors << 9) : 65536);
1232 	if (error)
1233 		goto out_deinit;
1234 
1235 	/*
1236 	 * Firmware printf works only with older firmware.
1237 	 */
1238 	if (aac_drivers[index].quirks & AAC_QUIRK_34SG)
1239 		aac->printf_enabled = 1;
1240 	else
1241 		aac->printf_enabled = 0;
1242 
1243 	/*
1244 	 * max channel will be the physical channels plus 1 virtual channel
1245 	 * all containers are on the virtual channel 0 (CONTAINER_CHANNEL)
1246 	 * physical channels are address by their actual physical number+1
1247 	 */
1248 	if (aac->nondasd_support || expose_physicals || aac->jbod)
1249 		shost->max_channel = aac->maximum_num_channels;
1250 	else
1251 		shost->max_channel = 0;
1252 
1253 	aac_get_config_status(aac, 0);
1254 	aac_get_containers(aac);
1255 	list_add(&aac->entry, insert);
1256 
1257 	shost->max_id = aac->maximum_num_containers;
1258 	if (shost->max_id < aac->maximum_num_physicals)
1259 		shost->max_id = aac->maximum_num_physicals;
1260 	if (shost->max_id < MAXIMUM_NUM_CONTAINERS)
1261 		shost->max_id = MAXIMUM_NUM_CONTAINERS;
1262 	else
1263 		shost->this_id = shost->max_id;
1264 
1265 	/*
1266 	 * dmb - we may need to move the setting of these parms somewhere else once
1267 	 * we get a fib that can report the actual numbers
1268 	 */
1269 	shost->max_lun = AAC_MAX_LUN;
1270 
1271 	pci_set_drvdata(pdev, shost);
1272 
1273 	error = scsi_add_host(shost, &pdev->dev);
1274 	if (error)
1275 		goto out_deinit;
1276 	scsi_scan_host(shost);
1277 
1278 	return 0;
1279 
1280  out_deinit:
1281 	__aac_shutdown(aac);
1282  out_unmap:
1283 	aac_fib_map_free(aac);
1284 	if (aac->comm_addr)
1285 		pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
1286 		  aac->comm_phys);
1287 	kfree(aac->queues);
1288 	aac_adapter_ioremap(aac, 0);
1289 	kfree(aac->fibs);
1290 	kfree(aac->fsa_dev);
1291  out_free_host:
1292 	scsi_host_put(shost);
1293  out_disable_pdev:
1294 	pci_disable_device(pdev);
1295  out:
1296 	return error;
1297 }
1298 
1299 static void aac_shutdown(struct pci_dev *dev)
1300 {
1301 	struct Scsi_Host *shost = pci_get_drvdata(dev);
1302 	scsi_block_requests(shost);
1303 	__aac_shutdown((struct aac_dev *)shost->hostdata);
1304 }
1305 
1306 static void aac_remove_one(struct pci_dev *pdev)
1307 {
1308 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
1309 	struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1310 
1311 	scsi_remove_host(shost);
1312 
1313 	__aac_shutdown(aac);
1314 	aac_fib_map_free(aac);
1315 	pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
1316 			aac->comm_phys);
1317 	kfree(aac->queues);
1318 
1319 	aac_adapter_ioremap(aac, 0);
1320 
1321 	kfree(aac->fibs);
1322 	kfree(aac->fsa_dev);
1323 
1324 	list_del(&aac->entry);
1325 	scsi_host_put(shost);
1326 	pci_disable_device(pdev);
1327 	if (list_empty(&aac_devices)) {
1328 		unregister_chrdev(aac_cfg_major, "aac");
1329 		aac_cfg_major = -1;
1330 	}
1331 }
1332 
1333 static struct pci_driver aac_pci_driver = {
1334 	.name		= AAC_DRIVERNAME,
1335 	.id_table	= aac_pci_tbl,
1336 	.probe		= aac_probe_one,
1337 	.remove		= aac_remove_one,
1338 	.shutdown	= aac_shutdown,
1339 };
1340 
1341 static int __init aac_init(void)
1342 {
1343 	int error;
1344 
1345 	printk(KERN_INFO "Adaptec %s driver %s\n",
1346 	  AAC_DRIVERNAME, aac_driver_version);
1347 
1348 	error = pci_register_driver(&aac_pci_driver);
1349 	if (error < 0)
1350 		return error;
1351 
1352 	aac_cfg_major = register_chrdev( 0, "aac", &aac_cfg_fops);
1353 	if (aac_cfg_major < 0) {
1354 		printk(KERN_WARNING
1355 			"aacraid: unable to register \"aac\" device.\n");
1356 	}
1357 
1358 	return 0;
1359 }
1360 
1361 static void __exit aac_exit(void)
1362 {
1363 	if (aac_cfg_major > -1)
1364 		unregister_chrdev(aac_cfg_major, "aac");
1365 	pci_unregister_driver(&aac_pci_driver);
1366 }
1367 
1368 module_init(aac_init);
1369 module_exit(aac_exit);
1370