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[SCSI] aacraid: OS panic after Adapter panic (hardening).
[linux-2.6/mini2440.git] / drivers / scsi / aacraid / linit.c
blob6a553ea730db7dfee18e42044276cf1db13dfc2f
1 /*
2 * Adaptec AAC series RAID controller driver
3 * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
4 *
5 * based on the old aacraid driver that is..
6 * Adaptec aacraid device driver for Linux.
7 *
8 * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2, or (at your option)
13 * any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; see the file COPYING. If not, write to
22 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
23 *
24 * Module Name:
25 * linit.c
26 *
27 * Abstract: Linux Driver entry module for Adaptec RAID Array Controller
28 */
29
30
31 #include <linux/compat.h>
32 #include <linux/blkdev.h>
33 #include <linux/completion.h>
34 #include <linux/init.h>
35 #include <linux/interrupt.h>
36 #include <linux/kernel.h>
37 #include <linux/module.h>
38 #include <linux/moduleparam.h>
39 #include <linux/pci.h>
40 #include <linux/slab.h>
41 #include <linux/spinlock.h>
42 #include <linux/syscalls.h>
43 #include <linux/delay.h>
44 #include <linux/kthread.h>
45 #include <asm/semaphore.h>
46
47 #include <scsi/scsi.h>
48 #include <scsi/scsi_cmnd.h>
49 #include <scsi/scsi_device.h>
50 #include <scsi/scsi_host.h>
51 #include <scsi/scsi_tcq.h>
52 #include <scsi/scsicam.h>
53 #include <scsi/scsi_eh.h>
54
55 #include "aacraid.h"
56
57 #define AAC_DRIVER_VERSION "1.1-5"
58 #ifndef AAC_DRIVER_BRANCH
59 #define AAC_DRIVER_BRANCH ""
60 #endif
61 #define AAC_DRIVER_BUILD_DATE __DATE__ " " __TIME__
62 #define AAC_DRIVERNAME "aacraid"
63
64 #ifdef AAC_DRIVER_BUILD
65 #define _str(x) #x
66 #define str(x) _str(x)
67 #define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION "[" str(AAC_DRIVER_BUILD) "]" AAC_DRIVER_BRANCH
68 #else
69 #define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION AAC_DRIVER_BRANCH " " AAC_DRIVER_BUILD_DATE
70 #endif
71
72 MODULE_AUTHOR("Red Hat Inc and Adaptec");
73 MODULE_DESCRIPTION("Dell PERC2, 2/Si, 3/Si, 3/Di, "
74 "Adaptec Advanced Raid Products, "
75 "HP NetRAID-4M, IBM ServeRAID & ICP SCSI driver");
76 MODULE_LICENSE("GPL");
77 MODULE_VERSION(AAC_DRIVER_FULL_VERSION);
78
79 static LIST_HEAD(aac_devices);
80 static int aac_cfg_major = -1;
81 char aac_driver_version[] = AAC_DRIVER_FULL_VERSION;
82
83 /*
84 * Because of the way Linux names scsi devices, the order in this table has
85 * become important. Check for on-board Raid first, add-in cards second.
86 *
87 * Note: The last field is used to index into aac_drivers below.
88 */
89 static struct pci_device_id aac_pci_tbl[] = {
90 { 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */
91 { 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */
92 { 0x1028, 0x0003, 0x1028, 0x0003, 0, 0, 2 }, /* PERC 3/Si (SlimFast/PERC3Si */
93 { 0x1028, 0x0004, 0x1028, 0x00d0, 0, 0, 3 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
94 { 0x1028, 0x0002, 0x1028, 0x00d1, 0, 0, 4 }, /* PERC 3/Di (Viper/PERC3DiV) */
95 { 0x1028, 0x0002, 0x1028, 0x00d9, 0, 0, 5 }, /* PERC 3/Di (Lexus/PERC3DiL) */
96 { 0x1028, 0x000a, 0x1028, 0x0106, 0, 0, 6 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
97 { 0x1028, 0x000a, 0x1028, 0x011b, 0, 0, 7 }, /* PERC 3/Di (Dagger/PERC3DiD) */
98 { 0x1028, 0x000a, 0x1028, 0x0121, 0, 0, 8 }, /* PERC 3/Di (Boxster/PERC3DiB) */
99 { 0x9005, 0x0283, 0x9005, 0x0283, 0, 0, 9 }, /* catapult */
100 { 0x9005, 0x0284, 0x9005, 0x0284, 0, 0, 10 }, /* tomcat */
101 { 0x9005, 0x0285, 0x9005, 0x0286, 0, 0, 11 }, /* Adaptec 2120S (Crusader) */
102 { 0x9005, 0x0285, 0x9005, 0x0285, 0, 0, 12 }, /* Adaptec 2200S (Vulcan) */
103 { 0x9005, 0x0285, 0x9005, 0x0287, 0, 0, 13 }, /* Adaptec 2200S (Vulcan-2m) */
104 { 0x9005, 0x0285, 0x17aa, 0x0286, 0, 0, 14 }, /* Legend S220 (Legend Crusader) */
105 { 0x9005, 0x0285, 0x17aa, 0x0287, 0, 0, 15 }, /* Legend S230 (Legend Vulcan) */
106
107 { 0x9005, 0x0285, 0x9005, 0x0288, 0, 0, 16 }, /* Adaptec 3230S (Harrier) */
108 { 0x9005, 0x0285, 0x9005, 0x0289, 0, 0, 17 }, /* Adaptec 3240S (Tornado) */
109 { 0x9005, 0x0285, 0x9005, 0x028a, 0, 0, 18 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
110 { 0x9005, 0x0285, 0x9005, 0x028b, 0, 0, 19 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
111 { 0x9005, 0x0286, 0x9005, 0x028c, 0, 0, 20 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
112 { 0x9005, 0x0286, 0x9005, 0x028d, 0, 0, 21 }, /* ASR-2130S (Lancer) */
113 { 0x9005, 0x0286, 0x9005, 0x029b, 0, 0, 22 }, /* AAR-2820SA (Intruder) */
114 { 0x9005, 0x0286, 0x9005, 0x029c, 0, 0, 23 }, /* AAR-2620SA (Intruder) */
115 { 0x9005, 0x0286, 0x9005, 0x029d, 0, 0, 24 }, /* AAR-2420SA (Intruder) */
116 { 0x9005, 0x0286, 0x9005, 0x029e, 0, 0, 25 }, /* ICP9024RO (Lancer) */
117 { 0x9005, 0x0286, 0x9005, 0x029f, 0, 0, 26 }, /* ICP9014RO (Lancer) */
118 { 0x9005, 0x0286, 0x9005, 0x02a0, 0, 0, 27 }, /* ICP9047MA (Lancer) */
119 { 0x9005, 0x0286, 0x9005, 0x02a1, 0, 0, 28 }, /* ICP9087MA (Lancer) */
120 { 0x9005, 0x0286, 0x9005, 0x02a3, 0, 0, 29 }, /* ICP5445AU (Hurricane44) */
121 { 0x9005, 0x0285, 0x9005, 0x02a4, 0, 0, 30 }, /* ICP9085LI (Marauder-X) */
122 { 0x9005, 0x0285, 0x9005, 0x02a5, 0, 0, 31 }, /* ICP5085BR (Marauder-E) */
123 { 0x9005, 0x0286, 0x9005, 0x02a6, 0, 0, 32 }, /* ICP9067MA (Intruder-6) */
124 { 0x9005, 0x0287, 0x9005, 0x0800, 0, 0, 33 }, /* Themisto Jupiter Platform */
125 { 0x9005, 0x0200, 0x9005, 0x0200, 0, 0, 33 }, /* Themisto Jupiter Platform */
126 { 0x9005, 0x0286, 0x9005, 0x0800, 0, 0, 34 }, /* Callisto Jupiter Platform */
127 { 0x9005, 0x0285, 0x9005, 0x028e, 0, 0, 35 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
128 { 0x9005, 0x0285, 0x9005, 0x028f, 0, 0, 36 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
129 { 0x9005, 0x0285, 0x9005, 0x0290, 0, 0, 37 }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
130 { 0x9005, 0x0285, 0x1028, 0x0291, 0, 0, 38 }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
131 { 0x9005, 0x0285, 0x9005, 0x0292, 0, 0, 39 }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
132 { 0x9005, 0x0285, 0x9005, 0x0293, 0, 0, 40 }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
133 { 0x9005, 0x0285, 0x9005, 0x0294, 0, 0, 41 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
134 { 0x9005, 0x0285, 0x103C, 0x3227, 0, 0, 42 }, /* AAR-2610SA PCI SATA 6ch */
135 { 0x9005, 0x0285, 0x9005, 0x0296, 0, 0, 43 }, /* ASR-2240S (SabreExpress) */
136 { 0x9005, 0x0285, 0x9005, 0x0297, 0, 0, 44 }, /* ASR-4005 */
137 { 0x9005, 0x0285, 0x1014, 0x02F2, 0, 0, 45 }, /* IBM 8i (AvonPark) */
138 { 0x9005, 0x0285, 0x1014, 0x0312, 0, 0, 45 }, /* IBM 8i (AvonPark Lite) */
139 { 0x9005, 0x0286, 0x1014, 0x9580, 0, 0, 46 }, /* IBM 8k/8k-l8 (Aurora) */
140 { 0x9005, 0x0286, 0x1014, 0x9540, 0, 0, 47 }, /* IBM 8k/8k-l4 (Aurora Lite) */
141 { 0x9005, 0x0285, 0x9005, 0x0298, 0, 0, 48 }, /* ASR-4000 (BlackBird) */
142 { 0x9005, 0x0285, 0x9005, 0x0299, 0, 0, 49 }, /* ASR-4800SAS (Marauder-X) */
143 { 0x9005, 0x0285, 0x9005, 0x029a, 0, 0, 50 }, /* ASR-4805SAS (Marauder-E) */
144 { 0x9005, 0x0286, 0x9005, 0x02a2, 0, 0, 51 }, /* ASR-3800 (Hurricane44) */
145
146 { 0x9005, 0x0285, 0x1028, 0x0287, 0, 0, 52 }, /* Perc 320/DC*/
147 { 0x1011, 0x0046, 0x9005, 0x0365, 0, 0, 53 }, /* Adaptec 5400S (Mustang)*/
148 { 0x1011, 0x0046, 0x9005, 0x0364, 0, 0, 54 }, /* Adaptec 5400S (Mustang)*/
149 { 0x1011, 0x0046, 0x9005, 0x1364, 0, 0, 55 }, /* Dell PERC2/QC */
150 { 0x1011, 0x0046, 0x103c, 0x10c2, 0, 0, 56 }, /* HP NetRAID-4M */
151
152 { 0x9005, 0x0285, 0x1028, PCI_ANY_ID, 0, 0, 57 }, /* Dell Catchall */
153 { 0x9005, 0x0285, 0x17aa, PCI_ANY_ID, 0, 0, 58 }, /* Legend Catchall */
154 { 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */
155 { 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */
156 { 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */
157 { 0,}
158 };
159 MODULE_DEVICE_TABLE(pci, aac_pci_tbl);
160
161 /*
162 * dmb - For now we add the number of channels to this structure.
163 * In the future we should add a fib that reports the number of channels
164 * for the card. At that time we can remove the channels from here
165 */
166 static struct aac_driver_ident aac_drivers[] = {
167 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 2/Si (Iguana/PERC2Si) */
168 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Opal/PERC3Di) */
169 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Si (SlimFast/PERC3Si */
170 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
171 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Viper/PERC3DiV) */
172 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Lexus/PERC3DiL) */
173 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
174 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Dagger/PERC3DiD) */
175 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Boxster/PERC3DiB) */
176 { aac_rx_init, "aacraid", "ADAPTEC ", "catapult ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* catapult */
177 { aac_rx_init, "aacraid", "ADAPTEC ", "tomcat ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* tomcat */
178 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2120S ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2120S (Crusader) */
179 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2200S ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2200S (Vulcan) */
180 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2200S ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2200S (Vulcan-2m) */
181 { aac_rx_init, "aacraid", "Legend ", "Legend S220 ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S220 (Legend Crusader) */
182 { aac_rx_init, "aacraid", "Legend ", "Legend S230 ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S230 (Legend Vulcan) */
183
184 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 3230S ", 2 }, /* Adaptec 3230S (Harrier) */
185 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 3240S ", 2 }, /* Adaptec 3240S (Tornado) */
186 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2020ZCR ", 2 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
187 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2025ZCR ", 2 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
188 { aac_rkt_init, "aacraid", "ADAPTEC ", "ASR-2230S PCI-X ", 2 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
189 { aac_rkt_init, "aacraid", "ADAPTEC ", "ASR-2130S PCI-X ", 1 }, /* ASR-2130S (Lancer) */
190 { aac_rkt_init, "aacraid", "ADAPTEC ", "AAR-2820SA ", 1 }, /* AAR-2820SA (Intruder) */
191 { aac_rkt_init, "aacraid", "ADAPTEC ", "AAR-2620SA ", 1 }, /* AAR-2620SA (Intruder) */
192 { aac_rkt_init, "aacraid", "ADAPTEC ", "AAR-2420SA ", 1 }, /* AAR-2420SA (Intruder) */
193 { aac_rkt_init, "aacraid", "ICP ", "ICP9024RO ", 2 }, /* ICP9024RO (Lancer) */
194 { aac_rkt_init, "aacraid", "ICP ", "ICP9014RO ", 1 }, /* ICP9014RO (Lancer) */
195 { aac_rkt_init, "aacraid", "ICP ", "ICP9047MA ", 1 }, /* ICP9047MA (Lancer) */
196 { aac_rkt_init, "aacraid", "ICP ", "ICP9087MA ", 1 }, /* ICP9087MA (Lancer) */
197 { aac_rkt_init, "aacraid", "ICP ", "ICP5445AU ", 1 }, /* ICP5445AU (Hurricane44) */
198 { aac_rx_init, "aacraid", "ICP ", "ICP9085LI ", 1 }, /* ICP9085LI (Marauder-X) */
199 { aac_rx_init, "aacraid", "ICP ", "ICP5085BR ", 1 }, /* ICP5085BR (Marauder-E) */
200 { aac_rkt_init, "aacraid", "ICP ", "ICP9067MA ", 1 }, /* ICP9067MA (Intruder-6) */
201 { NULL , "aacraid", "ADAPTEC ", "Themisto ", 0, AAC_QUIRK_SLAVE }, /* Jupiter Platform */
202 { aac_rkt_init, "aacraid", "ADAPTEC ", "Callisto ", 2, AAC_QUIRK_MASTER }, /* Jupiter Platform */
203 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2020SA ", 1 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
204 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2025SA ", 1 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
205 { aac_rx_init, "aacraid", "ADAPTEC ", "AAR-2410SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
206 { aac_rx_init, "aacraid", "DELL ", "CERC SR2 ", 1, AAC_QUIRK_17SG }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
207 { aac_rx_init, "aacraid", "ADAPTEC ", "AAR-2810SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
208 { aac_rx_init, "aacraid", "ADAPTEC ", "AAR-21610SA SATA", 1, AAC_QUIRK_17SG }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
209 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2026ZCR ", 1 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
210 { aac_rx_init, "aacraid", "ADAPTEC ", "AAR-2610SA ", 1 }, /* SATA 6Ch (Bearcat) */
211 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2240S ", 1 }, /* ASR-2240S (SabreExpress) */
212 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4005 ", 1 }, /* ASR-4005 */
213 { aac_rx_init, "ServeRAID","IBM ", "ServeRAID 8i ", 1 }, /* IBM 8i (AvonPark) */
214 { aac_rkt_init, "ServeRAID","IBM ", "ServeRAID 8k-l8 ", 1 }, /* IBM 8k/8k-l8 (Aurora) */
215 { aac_rkt_init, "ServeRAID","IBM ", "ServeRAID 8k-l4 ", 1 }, /* IBM 8k/8k-l4 (Aurora Lite) */
216 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4000 ", 1 }, /* ASR-4000 (BlackBird & AvonPark) */
217 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4800SAS ", 1 }, /* ASR-4800SAS (Marauder-X) */
218 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4805SAS ", 1 }, /* ASR-4805SAS (Marauder-E) */
219 { aac_rkt_init, "aacraid", "ADAPTEC ", "ASR-3800 ", 1 }, /* ASR-3800 (Hurricane44) */
220
221 { aac_rx_init, "percraid", "DELL ", "PERC 320/DC ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Perc 320/DC*/
222 { aac_sa_init, "aacraid", "ADAPTEC ", "Adaptec 5400S ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
223 { aac_sa_init, "aacraid", "ADAPTEC ", "AAC-364 ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
224 { aac_sa_init, "percraid", "DELL ", "PERCRAID ", 4, AAC_QUIRK_34SG }, /* Dell PERC2/QC */
225 { aac_sa_init, "hpnraid", "HP ", "NetRAID ", 4, AAC_QUIRK_34SG }, /* HP NetRAID-4M */
226
227 { aac_rx_init, "aacraid", "DELL ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Dell Catchall */
228 { aac_rx_init, "aacraid", "Legend ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend Catchall */
229 { aac_rx_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec Catch All */
230 { aac_rkt_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec Rocket Catch All */
231 { aac_nark_init, "aacraid", "ADAPTEC ", "RAID ", 2 } /* Adaptec NEMER/ARK Catch All */
232 };
233
234 /**
235 * aac_queuecommand - queue a SCSI command
236 * @cmd: SCSI command to queue
237 * @done: Function to call on command completion
238 *
239 * Queues a command for execution by the associated Host Adapter.
240 *
241 * TODO: unify with aac_scsi_cmd().
242 */
243
244 static int aac_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
245 {
246 struct Scsi_Host *host = cmd->device->host;
247 struct aac_dev *dev = (struct aac_dev *)host->hostdata;
248 u32 count = 0;
249 cmd->scsi_done = done;
250 for (; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
251 struct fib * fib = &dev->fibs[count];
252 struct scsi_cmnd * command;
253 if (fib->hw_fib_va->header.XferState &&
254 ((command = fib->callback_data)) &&
255 (command == cmd) &&
256 (cmd->SCp.phase == AAC_OWNER_FIRMWARE))
257 return 0; /* Already owned by Adapter */
258 }
259 cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
260 return (aac_scsi_cmd(cmd) ? FAILED : 0);
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 if ((sdev->type == TYPE_DISK) &&
405 (sdev_channel(sdev) != CONTAINER_CHANNEL)) {
406 if (expose_physicals == 0)
407 return -ENXIO;
408 if (expose_physicals < 0) {
409 struct aac_dev *aac =
410 (struct aac_dev *)sdev->host->hostdata;
411 if (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
412 sdev->no_uld_attach = 1;
413 }
414 }
415 if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
416 (sdev_channel(sdev) == CONTAINER_CHANNEL)) {
417 struct scsi_device * dev;
418 struct Scsi_Host *host = sdev->host;
419 unsigned num_lsu = 0;
420 unsigned num_one = 0;
421 unsigned depth;
422
423 /*
424 * Firmware has an individual device recovery time typically
425 * of 35 seconds, give us a margin.
426 */
427 if (sdev->timeout < (45 * HZ))
428 sdev->timeout = 45 * HZ;
429 __shost_for_each_device(dev, host) {
430 if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
431 (sdev_channel(dev) == CONTAINER_CHANNEL))
432 ++num_lsu;
433 else
434 ++num_one;
435 }
436 if (num_lsu == 0)
437 ++num_lsu;
438 depth = (host->can_queue - num_one) / num_lsu;
439 if (depth > 256)
440 depth = 256;
441 else if (depth < 2)
442 depth = 2;
443 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth);
444 if (!(((struct aac_dev *)host->hostdata)->adapter_info.options &
445 AAC_OPT_NEW_COMM))
446 blk_queue_max_segment_size(sdev->request_queue, 65536);
447 } else
448 scsi_adjust_queue_depth(sdev, 0, 1);
449
450 return 0;
451 }
452
453 /**
454 * aac_change_queue_depth - alter queue depths
455 * @sdev: SCSI device we are considering
456 * @depth: desired queue depth
457 *
458 * Alters queue depths for target device based on the host adapter's
459 * total capacity and the queue depth supported by the target device.
460 */
461
462 static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
463 {
464 if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
465 (sdev_channel(sdev) == CONTAINER_CHANNEL)) {
466 struct scsi_device * dev;
467 struct Scsi_Host *host = sdev->host;
468 unsigned num = 0;
469
470 __shost_for_each_device(dev, host) {
471 if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
472 (sdev_channel(dev) == CONTAINER_CHANNEL))
473 ++num;
474 ++num;
475 }
476 if (num >= host->can_queue)
477 num = host->can_queue - 1;
478 if (depth > (host->can_queue - num))
479 depth = host->can_queue - num;
480 if (depth > 256)
481 depth = 256;
482 else if (depth < 2)
483 depth = 2;
484 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth);
485 } else
486 scsi_adjust_queue_depth(sdev, 0, 1);
487 return sdev->queue_depth;
488 }
489
490 static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf)
491 {
492 struct scsi_device * sdev = to_scsi_device(dev);
493 if (sdev_channel(sdev) != CONTAINER_CHANNEL)
494 return snprintf(buf, PAGE_SIZE, sdev->no_uld_attach
495 ? "Hidden\n" : "JBOD");
496 return snprintf(buf, PAGE_SIZE, "%s\n",
497 get_container_type(((struct aac_dev *)(sdev->host->hostdata))
498 ->fsa_dev[sdev_id(sdev)].type));
499 }
500
501 static struct device_attribute aac_raid_level_attr = {
502 .attr = {
503 .name = "level",
504 .mode = S_IRUGO,
505 },
506 .show = aac_show_raid_level
507 };
508
509 static struct device_attribute *aac_dev_attrs[] = {
510 &aac_raid_level_attr,
511 NULL,
512 };
513
514 static int aac_ioctl(struct scsi_device *sdev, int cmd, void __user * arg)
515 {
516 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
517 return aac_do_ioctl(dev, cmd, arg);
518 }
519
520 static int aac_eh_abort(struct scsi_cmnd* cmd)
521 {
522 struct scsi_device * dev = cmd->device;
523 struct Scsi_Host * host = dev->host;
524 struct aac_dev * aac = (struct aac_dev *)host->hostdata;
525 int count;
526 int ret = FAILED;
527
528 printk(KERN_ERR "%s: Host adapter abort request (%d,%d,%d,%d)\n",
529 AAC_DRIVERNAME,
530 host->host_no, sdev_channel(dev), sdev_id(dev), dev->lun);
531 switch (cmd->cmnd[0]) {
532 case SERVICE_ACTION_IN:
533 if (!(aac->raw_io_interface) ||
534 !(aac->raw_io_64) ||
535 ((cmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
536 break;
537 case INQUIRY:
538 case READ_CAPACITY:
539 /* Mark associated FIB to not complete, eh handler does this */
540 for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
541 struct fib * fib = &aac->fibs[count];
542 if (fib->hw_fib_va->header.XferState &&
543 (fib->flags & FIB_CONTEXT_FLAG) &&
544 (fib->callback_data == cmd)) {
545 fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
546 cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
547 ret = SUCCESS;
548 }
549 }
550 break;
551 case TEST_UNIT_READY:
552 /* Mark associated FIB to not complete, eh handler does this */
553 for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
554 struct scsi_cmnd * command;
555 struct fib * fib = &aac->fibs[count];
556 if ((fib->hw_fib_va->header.XferState & cpu_to_le32(Async | NoResponseExpected)) &&
557 (fib->flags & FIB_CONTEXT_FLAG) &&
558 ((command = fib->callback_data)) &&
559 (command->device == cmd->device)) {
560 fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
561 command->SCp.phase = AAC_OWNER_ERROR_HANDLER;
562 if (command == cmd)
563 ret = SUCCESS;
564 }
565 }
566 }
567 return ret;
568 }
569
570 /*
571 * aac_eh_reset - Reset command handling
572 * @scsi_cmd: SCSI command block causing the reset
573 *
574 */
575 static int aac_eh_reset(struct scsi_cmnd* cmd)
576 {
577 struct scsi_device * dev = cmd->device;
578 struct Scsi_Host * host = dev->host;
579 struct scsi_cmnd * command;
580 int count;
581 struct aac_dev * aac = (struct aac_dev *)host->hostdata;
582 unsigned long flags;
583
584 /* Mark the associated FIB to not complete, eh handler does this */
585 for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
586 struct fib * fib = &aac->fibs[count];
587 if (fib->hw_fib_va->header.XferState &&
588 (fib->flags & FIB_CONTEXT_FLAG) &&
589 (fib->callback_data == cmd)) {
590 fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
591 cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
592 }
593 }
594 printk(KERN_ERR "%s: Host adapter reset request. SCSI hang ?\n",
595 AAC_DRIVERNAME);
596
597 if ((count = aac_check_health(aac)))
598 return count;
599 /*
600 * Wait for all commands to complete to this specific
601 * target (block maximum 60 seconds).
602 */
603 for (count = 60; count; --count) {
604 int active = aac->in_reset;
605
606 if (active == 0)
607 __shost_for_each_device(dev, host) {
608 spin_lock_irqsave(&dev->list_lock, flags);
609 list_for_each_entry(command, &dev->cmd_list, list) {
610 if ((command != cmd) &&
611 (command->SCp.phase == AAC_OWNER_FIRMWARE)) {
612 active++;
613 break;
614 }
615 }
616 spin_unlock_irqrestore(&dev->list_lock, flags);
617 if (active)
618 break;
619
620 }
621 /*
622 * We can exit If all the commands are complete
623 */
624 if (active == 0)
625 return SUCCESS;
626 ssleep(1);
627 }
628 printk(KERN_ERR "%s: SCSI bus appears hung\n", AAC_DRIVERNAME);
629 /*
630 * This adapter needs a blind reset, only do so for Adapters that
631 * support a register, instead of a commanded, reset.
632 */
633 if ((aac->supplement_adapter_info.SupportedOptions2 &
634 AAC_OPTION_MU_RESET) &&
635 aac_check_reset &&
636 ((aac_check_reset != 1) ||
637 (aac->supplement_adapter_info.SupportedOptions2 &
638 AAC_OPTION_IGNORE_RESET)))
639 aac_reset_adapter(aac, 2); /* Bypass wait for command quiesce */
640 return SUCCESS; /* Cause an immediate retry of the command with a ten second delay after successful tur */
641 }
642
643 /**
644 * aac_cfg_open - open a configuration file
645 * @inode: inode being opened
646 * @file: file handle attached
647 *
648 * Called when the configuration device is opened. Does the needed
649 * set up on the handle and then returns
650 *
651 * Bugs: This needs extending to check a given adapter is present
652 * so we can support hot plugging, and to ref count adapters.
653 */
654
655 static int aac_cfg_open(struct inode *inode, struct file *file)
656 {
657 struct aac_dev *aac;
658 unsigned minor_number = iminor(inode);
659 int err = -ENODEV;
660
661 list_for_each_entry(aac, &aac_devices, entry) {
662 if (aac->id == minor_number) {
663 file->private_data = aac;
664 err = 0;
665 break;
666 }
667 }
668
669 return err;
670 }
671
672 /**
673 * aac_cfg_ioctl - AAC configuration request
674 * @inode: inode of device
675 * @file: file handle
676 * @cmd: ioctl command code
677 * @arg: argument
678 *
679 * Handles a configuration ioctl. Currently this involves wrapping it
680 * up and feeding it into the nasty windowsalike glue layer.
681 *
682 * Bugs: Needs locking against parallel ioctls lower down
683 * Bugs: Needs to handle hot plugging
684 */
685
686 static int aac_cfg_ioctl(struct inode *inode, struct file *file,
687 unsigned int cmd, unsigned long arg)
688 {
689 if (!capable(CAP_SYS_RAWIO))
690 return -EPERM;
691 return aac_do_ioctl(file->private_data, cmd, (void __user *)arg);
692 }
693
694 #ifdef CONFIG_COMPAT
695 static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long arg)
696 {
697 long ret;
698 lock_kernel();
699 switch (cmd) {
700 case FSACTL_MINIPORT_REV_CHECK:
701 case FSACTL_SENDFIB:
702 case FSACTL_OPEN_GET_ADAPTER_FIB:
703 case FSACTL_CLOSE_GET_ADAPTER_FIB:
704 case FSACTL_SEND_RAW_SRB:
705 case FSACTL_GET_PCI_INFO:
706 case FSACTL_QUERY_DISK:
707 case FSACTL_DELETE_DISK:
708 case FSACTL_FORCE_DELETE_DISK:
709 case FSACTL_GET_CONTAINERS:
710 case FSACTL_SEND_LARGE_FIB:
711 ret = aac_do_ioctl(dev, cmd, (void __user *)arg);
712 break;
713
714 case FSACTL_GET_NEXT_ADAPTER_FIB: {
715 struct fib_ioctl __user *f;
716
717 f = compat_alloc_user_space(sizeof(*f));
718 ret = 0;
719 if (clear_user(f, sizeof(*f)))
720 ret = -EFAULT;
721 if (copy_in_user(f, (void __user *)arg, sizeof(struct fib_ioctl) - sizeof(u32)))
722 ret = -EFAULT;
723 if (!ret)
724 ret = aac_do_ioctl(dev, cmd, f);
725 break;
726 }
727
728 default:
729 ret = -ENOIOCTLCMD;
730 break;
731 }
732 unlock_kernel();
733 return ret;
734 }
735
736 static int aac_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
737 {
738 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
739 return aac_compat_do_ioctl(dev, cmd, (unsigned long)arg);
740 }
741
742 static long aac_compat_cfg_ioctl(struct file *file, unsigned cmd, unsigned long arg)
743 {
744 if (!capable(CAP_SYS_RAWIO))
745 return -EPERM;
746 return aac_compat_do_ioctl((struct aac_dev *)file->private_data, cmd, arg);
747 }
748 #endif
749
750 static ssize_t aac_show_model(struct class_device *class_dev,
751 char *buf)
752 {
753 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
754 int len;
755
756 if (dev->supplement_adapter_info.AdapterTypeText[0]) {
757 char * cp = dev->supplement_adapter_info.AdapterTypeText;
758 while (*cp && *cp != ' ')
759 ++cp;
760 while (*cp == ' ')
761 ++cp;
762 len = snprintf(buf, PAGE_SIZE, "%s\n", cp);
763 } else
764 len = snprintf(buf, PAGE_SIZE, "%s\n",
765 aac_drivers[dev->cardtype].model);
766 return len;
767 }
768
769 static ssize_t aac_show_vendor(struct class_device *class_dev,
770 char *buf)
771 {
772 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
773 int len;
774
775 if (dev->supplement_adapter_info.AdapterTypeText[0]) {
776 char * cp = dev->supplement_adapter_info.AdapterTypeText;
777 while (*cp && *cp != ' ')
778 ++cp;
779 len = snprintf(buf, PAGE_SIZE, "%.*s\n",
780 (int)(cp - (char *)dev->supplement_adapter_info.AdapterTypeText),
781 dev->supplement_adapter_info.AdapterTypeText);
782 } else
783 len = snprintf(buf, PAGE_SIZE, "%s\n",
784 aac_drivers[dev->cardtype].vname);
785 return len;
786 }
787
788 static ssize_t aac_show_kernel_version(struct class_device *class_dev,
789 char *buf)
790 {
791 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
792 int len, tmp;
793
794 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
795 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
796 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
797 le32_to_cpu(dev->adapter_info.kernelbuild));
798 return len;
799 }
800
801 static ssize_t aac_show_monitor_version(struct class_device *class_dev,
802 char *buf)
803 {
804 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
805 int len, tmp;
806
807 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
808 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
809 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
810 le32_to_cpu(dev->adapter_info.monitorbuild));
811 return len;
812 }
813
814 static ssize_t aac_show_bios_version(struct class_device *class_dev,
815 char *buf)
816 {
817 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
818 int len, tmp;
819
820 tmp = le32_to_cpu(dev->adapter_info.biosrev);
821 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
822 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
823 le32_to_cpu(dev->adapter_info.biosbuild));
824 return len;
825 }
826
827 ssize_t aac_show_serial_number(struct class_device *class_dev, char *buf)
828 {
829 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
830 int len = 0;
831
832 if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
833 len = snprintf(buf, PAGE_SIZE, "%06X\n",
834 le32_to_cpu(dev->adapter_info.serial[0]));
835 if (len &&
836 !memcmp(&dev->supplement_adapter_info.MfgPcbaSerialNo[
837 sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo)+2-len],
838 buf, len))
839 len = snprintf(buf, PAGE_SIZE, "%.*s\n",
840 (int)sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo),
841 dev->supplement_adapter_info.MfgPcbaSerialNo);
842 return len;
843 }
844
845 static ssize_t aac_show_max_channel(struct class_device *class_dev, char *buf)
846 {
847 return snprintf(buf, PAGE_SIZE, "%d\n",
848 class_to_shost(class_dev)->max_channel);
849 }
850
851 static ssize_t aac_show_max_id(struct class_device *class_dev, char *buf)
852 {
853 return snprintf(buf, PAGE_SIZE, "%d\n",
854 class_to_shost(class_dev)->max_id);
855 }
856
857 static ssize_t aac_store_reset_adapter(struct class_device *class_dev,
858 const char *buf, size_t count)
859 {
860 int retval = -EACCES;
861
862 if (!capable(CAP_SYS_ADMIN))
863 return retval;
864 retval = aac_reset_adapter((struct aac_dev*)class_to_shost(class_dev)->hostdata, buf[0] == '!');
865 if (retval >= 0)
866 retval = count;
867 return retval;
868 }
869
870 static ssize_t aac_show_reset_adapter(struct class_device *class_dev,
871 char *buf)
872 {
873 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
874 int len, tmp;
875
876 tmp = aac_adapter_check_health(dev);
877 if ((tmp == 0) && dev->in_reset)
878 tmp = -EBUSY;
879 len = snprintf(buf, PAGE_SIZE, "0x%x\n", tmp);
880 return len;
881 }
882
883 static struct class_device_attribute aac_model = {
884 .attr = {
885 .name = "model",
886 .mode = S_IRUGO,
887 },
888 .show = aac_show_model,
889 };
890 static struct class_device_attribute aac_vendor = {
891 .attr = {
892 .name = "vendor",
893 .mode = S_IRUGO,
894 },
895 .show = aac_show_vendor,
896 };
897 static struct class_device_attribute aac_kernel_version = {
898 .attr = {
899 .name = "hba_kernel_version",
900 .mode = S_IRUGO,
901 },
902 .show = aac_show_kernel_version,
903 };
904 static struct class_device_attribute aac_monitor_version = {
905 .attr = {
906 .name = "hba_monitor_version",
907 .mode = S_IRUGO,
908 },
909 .show = aac_show_monitor_version,
910 };
911 static struct class_device_attribute aac_bios_version = {
912 .attr = {
913 .name = "hba_bios_version",
914 .mode = S_IRUGO,
915 },
916 .show = aac_show_bios_version,
917 };
918 static struct class_device_attribute aac_serial_number = {
919 .attr = {
920 .name = "serial_number",
921 .mode = S_IRUGO,
922 },
923 .show = aac_show_serial_number,
924 };
925 static struct class_device_attribute aac_max_channel = {
926 .attr = {
927 .name = "max_channel",
928 .mode = S_IRUGO,
929 },
930 .show = aac_show_max_channel,
931 };
932 static struct class_device_attribute aac_max_id = {
933 .attr = {
934 .name = "max_id",
935 .mode = S_IRUGO,
936 },
937 .show = aac_show_max_id,
938 };
939 static struct class_device_attribute aac_reset = {
940 .attr = {
941 .name = "reset_host",
942 .mode = S_IWUSR|S_IRUGO,
943 },
944 .store = aac_store_reset_adapter,
945 .show = aac_show_reset_adapter,
946 };
947
948 static struct class_device_attribute *aac_attrs[] = {
949 &aac_model,
950 &aac_vendor,
951 &aac_kernel_version,
952 &aac_monitor_version,
953 &aac_bios_version,
954 &aac_serial_number,
955 &aac_max_channel,
956 &aac_max_id,
957 &aac_reset,
958 NULL
959 };
960
961
962 static const struct file_operations aac_cfg_fops = {
963 .owner = THIS_MODULE,
964 .ioctl = aac_cfg_ioctl,
965 #ifdef CONFIG_COMPAT
966 .compat_ioctl = aac_compat_cfg_ioctl,
967 #endif
968 .open = aac_cfg_open,
969 };
970
971 static struct scsi_host_template aac_driver_template = {
972 .module = THIS_MODULE,
973 .name = "AAC",
974 .proc_name = AAC_DRIVERNAME,
975 .info = aac_info,
976 .ioctl = aac_ioctl,
977 #ifdef CONFIG_COMPAT
978 .compat_ioctl = aac_compat_ioctl,
979 #endif
980 .queuecommand = aac_queuecommand,
981 .bios_param = aac_biosparm,
982 .shost_attrs = aac_attrs,
983 .slave_configure = aac_slave_configure,
984 .change_queue_depth = aac_change_queue_depth,
985 .sdev_attrs = aac_dev_attrs,
986 .eh_abort_handler = aac_eh_abort,
987 .eh_host_reset_handler = aac_eh_reset,
988 .can_queue = AAC_NUM_IO_FIB,
989 .this_id = MAXIMUM_NUM_CONTAINERS,
990 .sg_tablesize = 16,
991 .max_sectors = 128,
992 #if (AAC_NUM_IO_FIB > 256)
993 .cmd_per_lun = 256,
994 #else
995 .cmd_per_lun = AAC_NUM_IO_FIB,
996 #endif
997 .use_clustering = ENABLE_CLUSTERING,
998 .use_sg_chaining = ENABLE_SG_CHAINING,
999 .emulated = 1,
1000 };
1001
1002 static void __aac_shutdown(struct aac_dev * aac)
1003 {
1004 if (aac->aif_thread)
1005 kthread_stop(aac->thread);
1006 aac_send_shutdown(aac);
1007 aac_adapter_disable_int(aac);
1008 free_irq(aac->pdev->irq, aac);
1009 }
1010
1011 static int __devinit aac_probe_one(struct pci_dev *pdev,
1012 const struct pci_device_id *id)
1013 {
1014 unsigned index = id->driver_data;
1015 struct Scsi_Host *shost;
1016 struct aac_dev *aac;
1017 struct list_head *insert = &aac_devices;
1018 int error = -ENODEV;
1019 int unique_id = 0;
1020
1021 list_for_each_entry(aac, &aac_devices, entry) {
1022 if (aac->id > unique_id)
1023 break;
1024 insert = &aac->entry;
1025 unique_id++;
1026 }
1027
1028 error = pci_enable_device(pdev);
1029 if (error)
1030 goto out;
1031 error = -ENODEV;
1032
1033 if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) ||
1034 pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))
1035 goto out_disable_pdev;
1036 /*
1037 * If the quirk31 bit is set, the adapter needs adapter
1038 * to driver communication memory to be allocated below 2gig
1039 */
1040 if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
1041 if (pci_set_dma_mask(pdev, DMA_31BIT_MASK) ||
1042 pci_set_consistent_dma_mask(pdev, DMA_31BIT_MASK))
1043 goto out_disable_pdev;
1044
1045 pci_set_master(pdev);
1046
1047 shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
1048 if (!shost)
1049 goto out_disable_pdev;
1050
1051 shost->irq = pdev->irq;
1052 shost->base = pci_resource_start(pdev, 0);
1053 shost->unique_id = unique_id;
1054 shost->max_cmd_len = 16;
1055
1056 aac = (struct aac_dev *)shost->hostdata;
1057 aac->scsi_host_ptr = shost;
1058 aac->pdev = pdev;
1059 aac->name = aac_driver_template.name;
1060 aac->id = shost->unique_id;
1061 aac->cardtype = index;
1062 INIT_LIST_HEAD(&aac->entry);
1063
1064 aac->fibs = kmalloc(sizeof(struct fib) * (shost->can_queue + AAC_NUM_MGT_FIB), GFP_KERNEL);
1065 if (!aac->fibs)
1066 goto out_free_host;
1067 spin_lock_init(&aac->fib_lock);
1068
1069 /*
1070 * Map in the registers from the adapter.
1071 */
1072 aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
1073 if ((*aac_drivers[index].init)(aac))
1074 goto out_unmap;
1075
1076 /*
1077 * Start any kernel threads needed
1078 */
1079 aac->thread = kthread_run(aac_command_thread, aac, AAC_DRIVERNAME);
1080 if (IS_ERR(aac->thread)) {
1081 printk(KERN_ERR "aacraid: Unable to create command thread.\n");
1082 error = PTR_ERR(aac->thread);
1083 goto out_deinit;
1084 }
1085
1086 /*
1087 * If we had set a smaller DMA mask earlier, set it to 4gig
1088 * now since the adapter can dma data to at least a 4gig
1089 * address space.
1090 */
1091 if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
1092 if (pci_set_dma_mask(pdev, DMA_32BIT_MASK))
1093 goto out_deinit;
1094
1095 aac->maximum_num_channels = aac_drivers[index].channels;
1096 error = aac_get_adapter_info(aac);
1097 if (error < 0)
1098 goto out_deinit;
1099
1100 /*
1101 * Lets override negotiations and drop the maximum SG limit to 34
1102 */
1103 if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) &&
1104 (aac->scsi_host_ptr->sg_tablesize > 34)) {
1105 aac->scsi_host_ptr->sg_tablesize = 34;
1106 aac->scsi_host_ptr->max_sectors
1107 = (aac->scsi_host_ptr->sg_tablesize * 8) + 112;
1108 }
1109
1110 if ((aac_drivers[index].quirks & AAC_QUIRK_17SG) &&
1111 (aac->scsi_host_ptr->sg_tablesize > 17)) {
1112 aac->scsi_host_ptr->sg_tablesize = 17;
1113 aac->scsi_host_ptr->max_sectors
1114 = (aac->scsi_host_ptr->sg_tablesize * 8) + 112;
1115 }
1116
1117 /*
1118 * Firware printf works only with older firmware.
1119 */
1120 if (aac_drivers[index].quirks & AAC_QUIRK_34SG)
1121 aac->printf_enabled = 1;
1122 else
1123 aac->printf_enabled = 0;
1124
1125 /*
1126 * max channel will be the physical channels plus 1 virtual channel
1127 * all containers are on the virtual channel 0 (CONTAINER_CHANNEL)
1128 * physical channels are address by their actual physical number+1
1129 */
1130 if ((aac->nondasd_support == 1) || expose_physicals)
1131 shost->max_channel = aac->maximum_num_channels;
1132 else
1133 shost->max_channel = 0;
1134
1135 aac_get_config_status(aac, 0);
1136 aac_get_containers(aac);
1137 list_add(&aac->entry, insert);
1138
1139 shost->max_id = aac->maximum_num_containers;
1140 if (shost->max_id < aac->maximum_num_physicals)
1141 shost->max_id = aac->maximum_num_physicals;
1142 if (shost->max_id < MAXIMUM_NUM_CONTAINERS)
1143 shost->max_id = MAXIMUM_NUM_CONTAINERS;
1144 else
1145 shost->this_id = shost->max_id;
1146
1147 /*
1148 * dmb - we may need to move the setting of these parms somewhere else once
1149 * we get a fib that can report the actual numbers
1150 */
1151 shost->max_lun = AAC_MAX_LUN;
1152
1153 pci_set_drvdata(pdev, shost);
1154
1155 error = scsi_add_host(shost, &pdev->dev);
1156 if (error)
1157 goto out_deinit;
1158 scsi_scan_host(shost);
1159
1160 return 0;
1161
1162 out_deinit:
1163 __aac_shutdown(aac);
1164 out_unmap:
1165 aac_fib_map_free(aac);
1166 if (aac->comm_addr)
1167 pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
1168 aac->comm_phys);
1169 kfree(aac->queues);
1170 aac_adapter_ioremap(aac, 0);
1171 kfree(aac->fibs);
1172 kfree(aac->fsa_dev);
1173 out_free_host:
1174 scsi_host_put(shost);
1175 out_disable_pdev:
1176 pci_disable_device(pdev);
1177 out:
1178 return error;
1179 }
1180
1181 static void aac_shutdown(struct pci_dev *dev)
1182 {
1183 struct Scsi_Host *shost = pci_get_drvdata(dev);
1184 scsi_block_requests(shost);
1185 __aac_shutdown((struct aac_dev *)shost->hostdata);
1186 }
1187
1188 static void __devexit aac_remove_one(struct pci_dev *pdev)
1189 {
1190 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1191 struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1192
1193 scsi_remove_host(shost);
1194
1195 __aac_shutdown(aac);
1196 aac_fib_map_free(aac);
1197 pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
1198 aac->comm_phys);
1199 kfree(aac->queues);
1200
1201 aac_adapter_ioremap(aac, 0);
1202
1203 kfree(aac->fibs);
1204 kfree(aac->fsa_dev);
1205
1206 list_del(&aac->entry);
1207 scsi_host_put(shost);
1208 pci_disable_device(pdev);
1209 if (list_empty(&aac_devices)) {
1210 unregister_chrdev(aac_cfg_major, "aac");
1211 aac_cfg_major = -1;
1212 }
1213 }
1214
1215 static struct pci_driver aac_pci_driver = {
1216 .name = AAC_DRIVERNAME,
1217 .id_table = aac_pci_tbl,
1218 .probe = aac_probe_one,
1219 .remove = __devexit_p(aac_remove_one),
1220 .shutdown = aac_shutdown,
1221 };
1222
1223 static int __init aac_init(void)
1224 {
1225 int error;
1226
1227 printk(KERN_INFO "Adaptec %s driver %s\n",
1228 AAC_DRIVERNAME, aac_driver_version);
1229
1230 error = pci_register_driver(&aac_pci_driver);
1231 if (error < 0)
1232 return error;
1233
1234 aac_cfg_major = register_chrdev( 0, "aac", &aac_cfg_fops);
1235 if (aac_cfg_major < 0) {
1236 printk(KERN_WARNING
1237 "aacraid: unable to register \"aac\" device.\n");
1238 }
1239
1240 return 0;
1241 }
1242
1243 static void __exit aac_exit(void)
1244 {
1245 if (aac_cfg_major > -1)
1246 unregister_chrdev(aac_cfg_major, "aac");
1247 pci_unregister_driver(&aac_pci_driver);
1248 }
1249
1250 module_init(aac_init);
1251 module_exit(aac_exit);
Support for the Chinese Samsung S3C2440 based development boards