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[SCSI] aacraid: add user initiated reset
[mirror_ubuntu-zesty-kernel.git] / drivers / scsi / aacraid / linit.c
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 }, /* PERC 2/Si (Iguana/PERC2Si) */
168 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Opal/PERC3Di) */
169 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Si (SlimFast/PERC3Si */
170 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
171 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Viper/PERC3DiV) */
172 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Lexus/PERC3DiL) */
173 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
174 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Dagger/PERC3DiD) */
175 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Boxster/PERC3DiB) */
176 { aac_rx_init, "aacraid", "ADAPTEC ", "catapult ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* catapult */
177 { aac_rx_init, "aacraid", "ADAPTEC ", "tomcat ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* tomcat */
178 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2120S ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2120S (Crusader) */
179 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2200S ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2200S (Vulcan) */
180 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2200S ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2200S (Vulcan-2m) */
181 { aac_rx_init, "aacraid", "Legend ", "Legend S220 ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Legend S220 (Legend Crusader) */
182 { aac_rx_init, "aacraid", "Legend ", "Legend S230 ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* 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_31BIT | 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 }, /* Dell Catchall */
228 { aac_rx_init, "aacraid", "Legend ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Legend Catchall */
229 { aac_rx_init, "aacraid", "ADAPTEC ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* 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 __shost_for_each_device(dev, host) {
424 if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
425 (sdev_channel(dev) == CONTAINER_CHANNEL))
426 ++num_lsu;
427 else
428 ++num_one;
429 }
430 if (num_lsu == 0)
431 ++num_lsu;
432 depth = (host->can_queue - num_one) / num_lsu;
433 if (depth > 256)
434 depth = 256;
435 else if (depth < 2)
436 depth = 2;
437 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth);
438 if (!(((struct aac_dev *)host->hostdata)->adapter_info.options &
439 AAC_OPT_NEW_COMM))
440 blk_queue_max_segment_size(sdev->request_queue, 65536);
441 } else
442 scsi_adjust_queue_depth(sdev, 0, 1);
443
444 return 0;
445 }
446
447 /**
448 * aac_change_queue_depth - alter queue depths
449 * @sdev: SCSI device we are considering
450 * @depth: desired queue depth
451 *
452 * Alters queue depths for target device based on the host adapter's
453 * total capacity and the queue depth supported by the target device.
454 */
455
456 static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
457 {
458 if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
459 (sdev_channel(sdev) == CONTAINER_CHANNEL)) {
460 struct scsi_device * dev;
461 struct Scsi_Host *host = sdev->host;
462 unsigned num = 0;
463
464 __shost_for_each_device(dev, host) {
465 if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
466 (sdev_channel(dev) == CONTAINER_CHANNEL))
467 ++num;
468 ++num;
469 }
470 if (num >= host->can_queue)
471 num = host->can_queue - 1;
472 if (depth > (host->can_queue - num))
473 depth = host->can_queue - num;
474 if (depth > 256)
475 depth = 256;
476 else if (depth < 2)
477 depth = 2;
478 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth);
479 } else
480 scsi_adjust_queue_depth(sdev, 0, 1);
481 return sdev->queue_depth;
482 }
483
484 static int aac_ioctl(struct scsi_device *sdev, int cmd, void __user * arg)
485 {
486 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
487 return aac_do_ioctl(dev, cmd, arg);
488 }
489
490 static int aac_eh_abort(struct scsi_cmnd* cmd)
491 {
492 struct scsi_device * dev = cmd->device;
493 struct Scsi_Host * host = dev->host;
494 struct aac_dev * aac = (struct aac_dev *)host->hostdata;
495 int count;
496 int ret = FAILED;
497
498 printk(KERN_ERR "%s: Host adapter abort request (%d,%d,%d,%d)\n",
499 AAC_DRIVERNAME,
500 host->host_no, sdev_channel(dev), sdev_id(dev), dev->lun);
501 switch (cmd->cmnd[0]) {
502 case SERVICE_ACTION_IN:
503 if (!(aac->raw_io_interface) ||
504 !(aac->raw_io_64) ||
505 ((cmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
506 break;
507 case INQUIRY:
508 case READ_CAPACITY:
509 case TEST_UNIT_READY:
510 /* Mark associated FIB to not complete, eh handler does this */
511 for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
512 struct fib * fib = &aac->fibs[count];
513 if (fib->hw_fib_va->header.XferState &&
514 (fib->callback_data == cmd)) {
515 fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
516 cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
517 ret = SUCCESS;
518 }
519 }
520 }
521 return ret;
522 }
523
524 /*
525 * aac_eh_reset - Reset command handling
526 * @scsi_cmd: SCSI command block causing the reset
527 *
528 */
529 static int aac_eh_reset(struct scsi_cmnd* cmd)
530 {
531 struct scsi_device * dev = cmd->device;
532 struct Scsi_Host * host = dev->host;
533 struct scsi_cmnd * command;
534 int count;
535 struct aac_dev * aac = (struct aac_dev *)host->hostdata;
536 unsigned long flags;
537
538 /* Mark the associated FIB to not complete, eh handler does this */
539 for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
540 struct fib * fib = &aac->fibs[count];
541 if (fib->hw_fib_va->header.XferState &&
542 (fib->callback_data == cmd)) {
543 fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
544 cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
545 }
546 }
547 printk(KERN_ERR "%s: Host adapter reset request. SCSI hang ?\n",
548 AAC_DRIVERNAME);
549
550 if ((count = aac_check_health(aac)))
551 return count;
552 /*
553 * Wait for all commands to complete to this specific
554 * target (block maximum 60 seconds).
555 */
556 for (count = 60; count; --count) {
557 int active = aac->in_reset;
558
559 if (active == 0)
560 __shost_for_each_device(dev, host) {
561 spin_lock_irqsave(&dev->list_lock, flags);
562 list_for_each_entry(command, &dev->cmd_list, list) {
563 if ((command != cmd) &&
564 (command->SCp.phase == AAC_OWNER_FIRMWARE)) {
565 active++;
566 break;
567 }
568 }
569 spin_unlock_irqrestore(&dev->list_lock, flags);
570 if (active)
571 break;
572
573 }
574 /*
575 * We can exit If all the commands are complete
576 */
577 if (active == 0)
578 return SUCCESS;
579 ssleep(1);
580 }
581 printk(KERN_ERR "%s: SCSI bus appears hung\n", AAC_DRIVERNAME);
582 /*
583 * This adapter needs a blind reset, only do so for Adapters that
584 * support a register, instead of a commanded, reset.
585 */
586 if ((aac->supplement_adapter_info.SupportedOptions2 &
587 le32_to_cpu(AAC_OPTION_MU_RESET|AAC_OPTION_IGNORE_RESET)) ==
588 le32_to_cpu(AAC_OPTION_MU_RESET))
589 aac_reset_adapter(aac, 2); /* Bypass wait for command quiesce */
590 return SUCCESS; /* Cause an immediate retry of the command with a ten second delay after successful tur */
591 }
592
593 /**
594 * aac_cfg_open - open a configuration file
595 * @inode: inode being opened
596 * @file: file handle attached
597 *
598 * Called when the configuration device is opened. Does the needed
599 * set up on the handle and then returns
600 *
601 * Bugs: This needs extending to check a given adapter is present
602 * so we can support hot plugging, and to ref count adapters.
603 */
604
605 static int aac_cfg_open(struct inode *inode, struct file *file)
606 {
607 struct aac_dev *aac;
608 unsigned minor_number = iminor(inode);
609 int err = -ENODEV;
610
611 list_for_each_entry(aac, &aac_devices, entry) {
612 if (aac->id == minor_number) {
613 file->private_data = aac;
614 err = 0;
615 break;
616 }
617 }
618
619 return err;
620 }
621
622 /**
623 * aac_cfg_ioctl - AAC configuration request
624 * @inode: inode of device
625 * @file: file handle
626 * @cmd: ioctl command code
627 * @arg: argument
628 *
629 * Handles a configuration ioctl. Currently this involves wrapping it
630 * up and feeding it into the nasty windowsalike glue layer.
631 *
632 * Bugs: Needs locking against parallel ioctls lower down
633 * Bugs: Needs to handle hot plugging
634 */
635
636 static int aac_cfg_ioctl(struct inode *inode, struct file *file,
637 unsigned int cmd, unsigned long arg)
638 {
639 return aac_do_ioctl(file->private_data, cmd, (void __user *)arg);
640 }
641
642 #ifdef CONFIG_COMPAT
643 static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long arg)
644 {
645 long ret;
646 lock_kernel();
647 switch (cmd) {
648 case FSACTL_MINIPORT_REV_CHECK:
649 case FSACTL_SENDFIB:
650 case FSACTL_OPEN_GET_ADAPTER_FIB:
651 case FSACTL_CLOSE_GET_ADAPTER_FIB:
652 case FSACTL_SEND_RAW_SRB:
653 case FSACTL_GET_PCI_INFO:
654 case FSACTL_QUERY_DISK:
655 case FSACTL_DELETE_DISK:
656 case FSACTL_FORCE_DELETE_DISK:
657 case FSACTL_GET_CONTAINERS:
658 case FSACTL_SEND_LARGE_FIB:
659 ret = aac_do_ioctl(dev, cmd, (void __user *)arg);
660 break;
661
662 case FSACTL_GET_NEXT_ADAPTER_FIB: {
663 struct fib_ioctl __user *f;
664
665 f = compat_alloc_user_space(sizeof(*f));
666 ret = 0;
667 if (clear_user(f, sizeof(*f)))
668 ret = -EFAULT;
669 if (copy_in_user(f, (void __user *)arg, sizeof(struct fib_ioctl) - sizeof(u32)))
670 ret = -EFAULT;
671 if (!ret)
672 ret = aac_do_ioctl(dev, cmd, f);
673 break;
674 }
675
676 default:
677 ret = -ENOIOCTLCMD;
678 break;
679 }
680 unlock_kernel();
681 return ret;
682 }
683
684 static int aac_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
685 {
686 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
687 return aac_compat_do_ioctl(dev, cmd, (unsigned long)arg);
688 }
689
690 static long aac_compat_cfg_ioctl(struct file *file, unsigned cmd, unsigned long arg)
691 {
692 return aac_compat_do_ioctl((struct aac_dev *)file->private_data, cmd, arg);
693 }
694 #endif
695
696 static ssize_t aac_show_model(struct class_device *class_dev,
697 char *buf)
698 {
699 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
700 int len;
701
702 if (dev->supplement_adapter_info.AdapterTypeText[0]) {
703 char * cp = dev->supplement_adapter_info.AdapterTypeText;
704 while (*cp && *cp != ' ')
705 ++cp;
706 while (*cp == ' ')
707 ++cp;
708 len = snprintf(buf, PAGE_SIZE, "%s\n", cp);
709 } else
710 len = snprintf(buf, PAGE_SIZE, "%s\n",
711 aac_drivers[dev->cardtype].model);
712 return len;
713 }
714
715 static ssize_t aac_show_vendor(struct class_device *class_dev,
716 char *buf)
717 {
718 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
719 int len;
720
721 if (dev->supplement_adapter_info.AdapterTypeText[0]) {
722 char * cp = dev->supplement_adapter_info.AdapterTypeText;
723 while (*cp && *cp != ' ')
724 ++cp;
725 len = snprintf(buf, PAGE_SIZE, "%.*s\n",
726 (int)(cp - (char *)dev->supplement_adapter_info.AdapterTypeText),
727 dev->supplement_adapter_info.AdapterTypeText);
728 } else
729 len = snprintf(buf, PAGE_SIZE, "%s\n",
730 aac_drivers[dev->cardtype].vname);
731 return len;
732 }
733
734 static ssize_t aac_show_kernel_version(struct class_device *class_dev,
735 char *buf)
736 {
737 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
738 int len, tmp;
739
740 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
741 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
742 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
743 le32_to_cpu(dev->adapter_info.kernelbuild));
744 return len;
745 }
746
747 static ssize_t aac_show_monitor_version(struct class_device *class_dev,
748 char *buf)
749 {
750 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
751 int len, tmp;
752
753 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
754 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
755 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
756 le32_to_cpu(dev->adapter_info.monitorbuild));
757 return len;
758 }
759
760 static ssize_t aac_show_bios_version(struct class_device *class_dev,
761 char *buf)
762 {
763 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
764 int len, tmp;
765
766 tmp = le32_to_cpu(dev->adapter_info.biosrev);
767 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
768 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
769 le32_to_cpu(dev->adapter_info.biosbuild));
770 return len;
771 }
772
773 static ssize_t aac_show_serial_number(struct class_device *class_dev,
774 char *buf)
775 {
776 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
777 int len = 0;
778
779 if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
780 len = snprintf(buf, PAGE_SIZE, "%x\n",
781 le32_to_cpu(dev->adapter_info.serial[0]));
782 return len;
783 }
784
785 static ssize_t aac_show_max_channel(struct class_device *class_dev, char *buf)
786 {
787 return snprintf(buf, PAGE_SIZE, "%d\n",
788 class_to_shost(class_dev)->max_channel);
789 }
790
791 static ssize_t aac_show_max_id(struct class_device *class_dev, char *buf)
792 {
793 return snprintf(buf, PAGE_SIZE, "%d\n",
794 class_to_shost(class_dev)->max_id);
795 }
796
797 static ssize_t aac_store_reset_adapter(struct class_device *class_dev,
798 const char *buf, size_t count)
799 {
800 int retval = -EACCES;
801
802 if (!capable(CAP_SYS_ADMIN))
803 return retval;
804 retval = aac_reset_adapter((struct aac_dev*)class_to_shost(class_dev)->hostdata, buf[0] == '!');
805 if (retval >= 0)
806 retval = count;
807 return retval;
808 }
809
810 static ssize_t aac_show_reset_adapter(struct class_device *class_dev,
811 char *buf)
812 {
813 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
814 int len, tmp;
815
816 tmp = aac_adapter_check_health(dev);
817 if ((tmp == 0) && dev->in_reset)
818 tmp = -EBUSY;
819 len = snprintf(buf, PAGE_SIZE, "0x%x", tmp);
820 return len;
821 }
822
823 static struct class_device_attribute aac_model = {
824 .attr = {
825 .name = "model",
826 .mode = S_IRUGO,
827 },
828 .show = aac_show_model,
829 };
830 static struct class_device_attribute aac_vendor = {
831 .attr = {
832 .name = "vendor",
833 .mode = S_IRUGO,
834 },
835 .show = aac_show_vendor,
836 };
837 static struct class_device_attribute aac_kernel_version = {
838 .attr = {
839 .name = "hba_kernel_version",
840 .mode = S_IRUGO,
841 },
842 .show = aac_show_kernel_version,
843 };
844 static struct class_device_attribute aac_monitor_version = {
845 .attr = {
846 .name = "hba_monitor_version",
847 .mode = S_IRUGO,
848 },
849 .show = aac_show_monitor_version,
850 };
851 static struct class_device_attribute aac_bios_version = {
852 .attr = {
853 .name = "hba_bios_version",
854 .mode = S_IRUGO,
855 },
856 .show = aac_show_bios_version,
857 };
858 static struct class_device_attribute aac_serial_number = {
859 .attr = {
860 .name = "serial_number",
861 .mode = S_IRUGO,
862 },
863 .show = aac_show_serial_number,
864 };
865 static struct class_device_attribute aac_max_channel = {
866 .attr = {
867 .name = "max_channel",
868 .mode = S_IRUGO,
869 },
870 .show = aac_show_max_channel,
871 };
872 static struct class_device_attribute aac_max_id = {
873 .attr = {
874 .name = "max_id",
875 .mode = S_IRUGO,
876 },
877 .show = aac_show_max_id,
878 };
879 static struct class_device_attribute aac_reset = {
880 .attr = {
881 .name = "reset_host",
882 .mode = S_IWUSR|S_IRUGO,
883 },
884 .store = aac_store_reset_adapter,
885 .show = aac_show_reset_adapter,
886 };
887
888 static struct class_device_attribute *aac_attrs[] = {
889 &aac_model,
890 &aac_vendor,
891 &aac_kernel_version,
892 &aac_monitor_version,
893 &aac_bios_version,
894 &aac_serial_number,
895 &aac_max_channel,
896 &aac_max_id,
897 &aac_reset,
898 NULL
899 };
900
901
902 static const struct file_operations aac_cfg_fops = {
903 .owner = THIS_MODULE,
904 .ioctl = aac_cfg_ioctl,
905 #ifdef CONFIG_COMPAT
906 .compat_ioctl = aac_compat_cfg_ioctl,
907 #endif
908 .open = aac_cfg_open,
909 };
910
911 static struct scsi_host_template aac_driver_template = {
912 .module = THIS_MODULE,
913 .name = "AAC",
914 .proc_name = AAC_DRIVERNAME,
915 .info = aac_info,
916 .ioctl = aac_ioctl,
917 #ifdef CONFIG_COMPAT
918 .compat_ioctl = aac_compat_ioctl,
919 #endif
920 .queuecommand = aac_queuecommand,
921 .bios_param = aac_biosparm,
922 .shost_attrs = aac_attrs,
923 .slave_configure = aac_slave_configure,
924 .change_queue_depth = aac_change_queue_depth,
925 .eh_abort_handler = aac_eh_abort,
926 .eh_host_reset_handler = aac_eh_reset,
927 .can_queue = AAC_NUM_IO_FIB,
928 .this_id = MAXIMUM_NUM_CONTAINERS,
929 .sg_tablesize = 16,
930 .max_sectors = 128,
931 #if (AAC_NUM_IO_FIB > 256)
932 .cmd_per_lun = 256,
933 #else
934 .cmd_per_lun = AAC_NUM_IO_FIB,
935 #endif
936 .use_clustering = ENABLE_CLUSTERING,
937 .emulated = 1,
938 };
939
940 static int __devinit aac_probe_one(struct pci_dev *pdev,
941 const struct pci_device_id *id)
942 {
943 unsigned index = id->driver_data;
944 struct Scsi_Host *shost;
945 struct aac_dev *aac;
946 struct list_head *insert = &aac_devices;
947 int error = -ENODEV;
948 int unique_id = 0;
949
950 list_for_each_entry(aac, &aac_devices, entry) {
951 if (aac->id > unique_id)
952 break;
953 insert = &aac->entry;
954 unique_id++;
955 }
956
957 error = pci_enable_device(pdev);
958 if (error)
959 goto out;
960 error = -ENODEV;
961
962 if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) ||
963 pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))
964 goto out_disable_pdev;
965 /*
966 * If the quirk31 bit is set, the adapter needs adapter
967 * to driver communication memory to be allocated below 2gig
968 */
969 if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
970 if (pci_set_dma_mask(pdev, DMA_31BIT_MASK) ||
971 pci_set_consistent_dma_mask(pdev, DMA_31BIT_MASK))
972 goto out_disable_pdev;
973
974 pci_set_master(pdev);
975
976 shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
977 if (!shost)
978 goto out_disable_pdev;
979
980 shost->irq = pdev->irq;
981 shost->base = pci_resource_start(pdev, 0);
982 shost->unique_id = unique_id;
983 shost->max_cmd_len = 16;
984
985 aac = (struct aac_dev *)shost->hostdata;
986 aac->scsi_host_ptr = shost;
987 aac->pdev = pdev;
988 aac->name = aac_driver_template.name;
989 aac->id = shost->unique_id;
990 aac->cardtype = index;
991 INIT_LIST_HEAD(&aac->entry);
992
993 aac->fibs = kmalloc(sizeof(struct fib) * (shost->can_queue + AAC_NUM_MGT_FIB), GFP_KERNEL);
994 if (!aac->fibs)
995 goto out_free_host;
996 spin_lock_init(&aac->fib_lock);
997
998 /*
999 * Map in the registers from the adapter.
1000 */
1001 aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
1002 if ((*aac_drivers[index].init)(aac))
1003 goto out_unmap;
1004
1005 /*
1006 * Start any kernel threads needed
1007 */
1008 aac->thread = kthread_run(aac_command_thread, aac, AAC_DRIVERNAME);
1009 if (IS_ERR(aac->thread)) {
1010 printk(KERN_ERR "aacraid: Unable to create command thread.\n");
1011 error = PTR_ERR(aac->thread);
1012 goto out_deinit;
1013 }
1014
1015 /*
1016 * If we had set a smaller DMA mask earlier, set it to 4gig
1017 * now since the adapter can dma data to at least a 4gig
1018 * address space.
1019 */
1020 if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
1021 if (pci_set_dma_mask(pdev, DMA_32BIT_MASK))
1022 goto out_deinit;
1023
1024 aac->maximum_num_channels = aac_drivers[index].channels;
1025 error = aac_get_adapter_info(aac);
1026 if (error < 0)
1027 goto out_deinit;
1028
1029 /*
1030 * Lets override negotiations and drop the maximum SG limit to 34
1031 */
1032 if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) &&
1033 (aac->scsi_host_ptr->sg_tablesize > 34)) {
1034 aac->scsi_host_ptr->sg_tablesize = 34;
1035 aac->scsi_host_ptr->max_sectors
1036 = (aac->scsi_host_ptr->sg_tablesize * 8) + 112;
1037 }
1038
1039 if ((aac_drivers[index].quirks & AAC_QUIRK_17SG) &&
1040 (aac->scsi_host_ptr->sg_tablesize > 17)) {
1041 aac->scsi_host_ptr->sg_tablesize = 17;
1042 aac->scsi_host_ptr->max_sectors
1043 = (aac->scsi_host_ptr->sg_tablesize * 8) + 112;
1044 }
1045
1046 /*
1047 * Firware printf works only with older firmware.
1048 */
1049 if (aac_drivers[index].quirks & AAC_QUIRK_34SG)
1050 aac->printf_enabled = 1;
1051 else
1052 aac->printf_enabled = 0;
1053
1054 /*
1055 * max channel will be the physical channels plus 1 virtual channel
1056 * all containers are on the virtual channel 0 (CONTAINER_CHANNEL)
1057 * physical channels are address by their actual physical number+1
1058 */
1059 if ((aac->nondasd_support == 1) || expose_physicals)
1060 shost->max_channel = aac->maximum_num_channels;
1061 else
1062 shost->max_channel = 0;
1063
1064 aac_get_config_status(aac, 0);
1065 aac_get_containers(aac);
1066 list_add(&aac->entry, insert);
1067
1068 shost->max_id = aac->maximum_num_containers;
1069 if (shost->max_id < aac->maximum_num_physicals)
1070 shost->max_id = aac->maximum_num_physicals;
1071 if (shost->max_id < MAXIMUM_NUM_CONTAINERS)
1072 shost->max_id = MAXIMUM_NUM_CONTAINERS;
1073 else
1074 shost->this_id = shost->max_id;
1075
1076 /*
1077 * dmb - we may need to move the setting of these parms somewhere else once
1078 * we get a fib that can report the actual numbers
1079 */
1080 shost->max_lun = AAC_MAX_LUN;
1081
1082 pci_set_drvdata(pdev, shost);
1083
1084 error = scsi_add_host(shost, &pdev->dev);
1085 if (error)
1086 goto out_deinit;
1087 scsi_scan_host(shost);
1088
1089 return 0;
1090
1091 out_deinit:
1092 kthread_stop(aac->thread);
1093 aac_send_shutdown(aac);
1094 aac_adapter_disable_int(aac);
1095 free_irq(pdev->irq, aac);
1096 out_unmap:
1097 aac_fib_map_free(aac);
1098 pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr, aac->comm_phys);
1099 kfree(aac->queues);
1100 aac_adapter_ioremap(aac, 0);
1101 kfree(aac->fibs);
1102 kfree(aac->fsa_dev);
1103 out_free_host:
1104 scsi_host_put(shost);
1105 out_disable_pdev:
1106 pci_disable_device(pdev);
1107 out:
1108 return error;
1109 }
1110
1111 static void aac_shutdown(struct pci_dev *dev)
1112 {
1113 struct Scsi_Host *shost = pci_get_drvdata(dev);
1114 struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1115 aac_send_shutdown(aac);
1116 }
1117
1118 static void __devexit aac_remove_one(struct pci_dev *pdev)
1119 {
1120 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1121 struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1122
1123 scsi_remove_host(shost);
1124
1125 kthread_stop(aac->thread);
1126
1127 aac_send_shutdown(aac);
1128 aac_adapter_disable_int(aac);
1129 aac_fib_map_free(aac);
1130 pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
1131 aac->comm_phys);
1132 kfree(aac->queues);
1133
1134 free_irq(pdev->irq, aac);
1135 aac_adapter_ioremap(aac, 0);
1136
1137 kfree(aac->fibs);
1138 kfree(aac->fsa_dev);
1139
1140 list_del(&aac->entry);
1141 scsi_host_put(shost);
1142 pci_disable_device(pdev);
1143 if (list_empty(&aac_devices)) {
1144 unregister_chrdev(aac_cfg_major, "aac");
1145 aac_cfg_major = -1;
1146 }
1147 }
1148
1149 static struct pci_driver aac_pci_driver = {
1150 .name = AAC_DRIVERNAME,
1151 .id_table = aac_pci_tbl,
1152 .probe = aac_probe_one,
1153 .remove = __devexit_p(aac_remove_one),
1154 .shutdown = aac_shutdown,
1155 };
1156
1157 static int __init aac_init(void)
1158 {
1159 int error;
1160
1161 printk(KERN_INFO "Adaptec %s driver %s\n",
1162 AAC_DRIVERNAME, aac_driver_version);
1163
1164 error = pci_register_driver(&aac_pci_driver);
1165 if (error < 0)
1166 return error;
1167
1168 aac_cfg_major = register_chrdev( 0, "aac", &aac_cfg_fops);
1169 if (aac_cfg_major < 0) {
1170 printk(KERN_WARNING
1171 "aacraid: unable to register \"aac\" device.\n");
1172 }
1173
1174 return 0;
1175 }
1176
1177 static void __exit aac_exit(void)
1178 {
1179 if (aac_cfg_major > -1)
1180 unregister_chrdev(aac_cfg_major, "aac");
1181 pci_unregister_driver(&aac_pci_driver);
1182 }
1183
1184 module_init(aac_init);
1185 module_exit(aac_exit);
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