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 * 2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
10 * 2016-2017 Microsemi Corp. (aacraid@microsemi.com)
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2, or (at your option)
15 * any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; see the file COPYING. If not, write to
24 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
25 *
26 * Module Name:
27 * linit.c
28 *
29 * Abstract: Linux Driver entry module for Adaptec RAID Array Controller
30 */
31
32
33 #include <linux/compat.h>
34 #include <linux/blkdev.h>
35 #include <linux/completion.h>
36 #include <linux/init.h>
37 #include <linux/interrupt.h>
38 #include <linux/kernel.h>
39 #include <linux/module.h>
40 #include <linux/moduleparam.h>
41 #include <linux/pci.h>
42 #include <linux/aer.h>
43 #include <linux/pci-aspm.h>
44 #include <linux/slab.h>
45 #include <linux/mutex.h>
46 #include <linux/spinlock.h>
47 #include <linux/syscalls.h>
48 #include <linux/delay.h>
49 #include <linux/kthread.h>
50
51 #include <scsi/scsi.h>
52 #include <scsi/scsi_cmnd.h>
53 #include <scsi/scsi_device.h>
54 #include <scsi/scsi_host.h>
55 #include <scsi/scsi_tcq.h>
56 #include <scsi/scsicam.h>
57 #include <scsi/scsi_eh.h>
58
59 #include "aacraid.h"
60
61 #define AAC_DRIVER_VERSION "1.2.1"
62 #ifndef AAC_DRIVER_BRANCH
63 #define AAC_DRIVER_BRANCH ""
64 #endif
65 #define AAC_DRIVERNAME "aacraid"
66
67 #ifdef AAC_DRIVER_BUILD
68 #define _str(x) #x
69 #define str(x) _str(x)
70 #define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION "[" str(AAC_DRIVER_BUILD) "]" AAC_DRIVER_BRANCH
71 #else
72 #define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION AAC_DRIVER_BRANCH
73 #endif
74
75 MODULE_AUTHOR("Red Hat Inc and Adaptec");
76 MODULE_DESCRIPTION("Dell PERC2, 2/Si, 3/Si, 3/Di, "
77 "Adaptec Advanced Raid Products, "
78 "HP NetRAID-4M, IBM ServeRAID & ICP SCSI driver");
79 MODULE_LICENSE("GPL");
80 MODULE_VERSION(AAC_DRIVER_FULL_VERSION);
81
82 static DEFINE_MUTEX(aac_mutex);
83 static LIST_HEAD(aac_devices);
84 static int aac_cfg_major = AAC_CHARDEV_UNREGISTERED;
85 char aac_driver_version[] = AAC_DRIVER_FULL_VERSION;
86
87 /*
88 * Because of the way Linux names scsi devices, the order in this table has
89 * become important. Check for on-board Raid first, add-in cards second.
90 *
91 * Note: The last field is used to index into aac_drivers below.
92 */
93 static const struct pci_device_id aac_pci_tbl[] = {
94 { 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */
95 { 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */
96 { 0x1028, 0x0003, 0x1028, 0x0003, 0, 0, 2 }, /* PERC 3/Si (SlimFast/PERC3Si */
97 { 0x1028, 0x0004, 0x1028, 0x00d0, 0, 0, 3 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
98 { 0x1028, 0x0002, 0x1028, 0x00d1, 0, 0, 4 }, /* PERC 3/Di (Viper/PERC3DiV) */
99 { 0x1028, 0x0002, 0x1028, 0x00d9, 0, 0, 5 }, /* PERC 3/Di (Lexus/PERC3DiL) */
100 { 0x1028, 0x000a, 0x1028, 0x0106, 0, 0, 6 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
101 { 0x1028, 0x000a, 0x1028, 0x011b, 0, 0, 7 }, /* PERC 3/Di (Dagger/PERC3DiD) */
102 { 0x1028, 0x000a, 0x1028, 0x0121, 0, 0, 8 }, /* PERC 3/Di (Boxster/PERC3DiB) */
103 { 0x9005, 0x0283, 0x9005, 0x0283, 0, 0, 9 }, /* catapult */
104 { 0x9005, 0x0284, 0x9005, 0x0284, 0, 0, 10 }, /* tomcat */
105 { 0x9005, 0x0285, 0x9005, 0x0286, 0, 0, 11 }, /* Adaptec 2120S (Crusader) */
106 { 0x9005, 0x0285, 0x9005, 0x0285, 0, 0, 12 }, /* Adaptec 2200S (Vulcan) */
107 { 0x9005, 0x0285, 0x9005, 0x0287, 0, 0, 13 }, /* Adaptec 2200S (Vulcan-2m) */
108 { 0x9005, 0x0285, 0x17aa, 0x0286, 0, 0, 14 }, /* Legend S220 (Legend Crusader) */
109 { 0x9005, 0x0285, 0x17aa, 0x0287, 0, 0, 15 }, /* Legend S230 (Legend Vulcan) */
110
111 { 0x9005, 0x0285, 0x9005, 0x0288, 0, 0, 16 }, /* Adaptec 3230S (Harrier) */
112 { 0x9005, 0x0285, 0x9005, 0x0289, 0, 0, 17 }, /* Adaptec 3240S (Tornado) */
113 { 0x9005, 0x0285, 0x9005, 0x028a, 0, 0, 18 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
114 { 0x9005, 0x0285, 0x9005, 0x028b, 0, 0, 19 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
115 { 0x9005, 0x0286, 0x9005, 0x028c, 0, 0, 20 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
116 { 0x9005, 0x0286, 0x9005, 0x028d, 0, 0, 21 }, /* ASR-2130S (Lancer) */
117 { 0x9005, 0x0286, 0x9005, 0x029b, 0, 0, 22 }, /* AAR-2820SA (Intruder) */
118 { 0x9005, 0x0286, 0x9005, 0x029c, 0, 0, 23 }, /* AAR-2620SA (Intruder) */
119 { 0x9005, 0x0286, 0x9005, 0x029d, 0, 0, 24 }, /* AAR-2420SA (Intruder) */
120 { 0x9005, 0x0286, 0x9005, 0x029e, 0, 0, 25 }, /* ICP9024RO (Lancer) */
121 { 0x9005, 0x0286, 0x9005, 0x029f, 0, 0, 26 }, /* ICP9014RO (Lancer) */
122 { 0x9005, 0x0286, 0x9005, 0x02a0, 0, 0, 27 }, /* ICP9047MA (Lancer) */
123 { 0x9005, 0x0286, 0x9005, 0x02a1, 0, 0, 28 }, /* ICP9087MA (Lancer) */
124 { 0x9005, 0x0286, 0x9005, 0x02a3, 0, 0, 29 }, /* ICP5445AU (Hurricane44) */
125 { 0x9005, 0x0285, 0x9005, 0x02a4, 0, 0, 30 }, /* ICP9085LI (Marauder-X) */
126 { 0x9005, 0x0285, 0x9005, 0x02a5, 0, 0, 31 }, /* ICP5085BR (Marauder-E) */
127 { 0x9005, 0x0286, 0x9005, 0x02a6, 0, 0, 32 }, /* ICP9067MA (Intruder-6) */
128 { 0x9005, 0x0287, 0x9005, 0x0800, 0, 0, 33 }, /* Themisto Jupiter Platform */
129 { 0x9005, 0x0200, 0x9005, 0x0200, 0, 0, 33 }, /* Themisto Jupiter Platform */
130 { 0x9005, 0x0286, 0x9005, 0x0800, 0, 0, 34 }, /* Callisto Jupiter Platform */
131 { 0x9005, 0x0285, 0x9005, 0x028e, 0, 0, 35 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
132 { 0x9005, 0x0285, 0x9005, 0x028f, 0, 0, 36 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
133 { 0x9005, 0x0285, 0x9005, 0x0290, 0, 0, 37 }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
134 { 0x9005, 0x0285, 0x1028, 0x0291, 0, 0, 38 }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
135 { 0x9005, 0x0285, 0x9005, 0x0292, 0, 0, 39 }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
136 { 0x9005, 0x0285, 0x9005, 0x0293, 0, 0, 40 }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
137 { 0x9005, 0x0285, 0x9005, 0x0294, 0, 0, 41 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
138 { 0x9005, 0x0285, 0x103C, 0x3227, 0, 0, 42 }, /* AAR-2610SA PCI SATA 6ch */
139 { 0x9005, 0x0285, 0x9005, 0x0296, 0, 0, 43 }, /* ASR-2240S (SabreExpress) */
140 { 0x9005, 0x0285, 0x9005, 0x0297, 0, 0, 44 }, /* ASR-4005 */
141 { 0x9005, 0x0285, 0x1014, 0x02F2, 0, 0, 45 }, /* IBM 8i (AvonPark) */
142 { 0x9005, 0x0285, 0x1014, 0x0312, 0, 0, 45 }, /* IBM 8i (AvonPark Lite) */
143 { 0x9005, 0x0286, 0x1014, 0x9580, 0, 0, 46 }, /* IBM 8k/8k-l8 (Aurora) */
144 { 0x9005, 0x0286, 0x1014, 0x9540, 0, 0, 47 }, /* IBM 8k/8k-l4 (Aurora Lite) */
145 { 0x9005, 0x0285, 0x9005, 0x0298, 0, 0, 48 }, /* ASR-4000 (BlackBird) */
146 { 0x9005, 0x0285, 0x9005, 0x0299, 0, 0, 49 }, /* ASR-4800SAS (Marauder-X) */
147 { 0x9005, 0x0285, 0x9005, 0x029a, 0, 0, 50 }, /* ASR-4805SAS (Marauder-E) */
148 { 0x9005, 0x0286, 0x9005, 0x02a2, 0, 0, 51 }, /* ASR-3800 (Hurricane44) */
149
150 { 0x9005, 0x0285, 0x1028, 0x0287, 0, 0, 52 }, /* Perc 320/DC*/
151 { 0x1011, 0x0046, 0x9005, 0x0365, 0, 0, 53 }, /* Adaptec 5400S (Mustang)*/
152 { 0x1011, 0x0046, 0x9005, 0x0364, 0, 0, 54 }, /* Adaptec 5400S (Mustang)*/
153 { 0x1011, 0x0046, 0x9005, 0x1364, 0, 0, 55 }, /* Dell PERC2/QC */
154 { 0x1011, 0x0046, 0x103c, 0x10c2, 0, 0, 56 }, /* HP NetRAID-4M */
155
156 { 0x9005, 0x0285, 0x1028, PCI_ANY_ID, 0, 0, 57 }, /* Dell Catchall */
157 { 0x9005, 0x0285, 0x17aa, PCI_ANY_ID, 0, 0, 58 }, /* Legend Catchall */
158 { 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */
159 { 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */
160 { 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */
161 { 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Series 6 (Tupelo) */
162 { 0x9005, 0x028c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 63 }, /* Adaptec PMC Series 7 (Denali) */
163 { 0x9005, 0x028d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 64 }, /* Adaptec PMC Series 8 */
164 { 0,}
165 };
166 MODULE_DEVICE_TABLE(pci, aac_pci_tbl);
167
168 /*
169 * dmb - For now we add the number of channels to this structure.
170 * In the future we should add a fib that reports the number of channels
171 * for the card. At that time we can remove the channels from here
172 */
173 static struct aac_driver_ident aac_drivers[] = {
174 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 2/Si (Iguana/PERC2Si) */
175 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Opal/PERC3Di) */
176 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Si (SlimFast/PERC3Si */
177 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
178 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Viper/PERC3DiV) */
179 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Lexus/PERC3DiL) */
180 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
181 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Dagger/PERC3DiD) */
182 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Boxster/PERC3DiB) */
183 { aac_rx_init, "aacraid", "ADAPTEC ", "catapult ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* catapult */
184 { aac_rx_init, "aacraid", "ADAPTEC ", "tomcat ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* tomcat */
185 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2120S ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2120S (Crusader) */
186 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2200S ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2200S (Vulcan) */
187 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2200S ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2200S (Vulcan-2m) */
188 { aac_rx_init, "aacraid", "Legend ", "Legend S220 ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S220 (Legend Crusader) */
189 { aac_rx_init, "aacraid", "Legend ", "Legend S230 ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S230 (Legend Vulcan) */
190
191 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 3230S ", 2 }, /* Adaptec 3230S (Harrier) */
192 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 3240S ", 2 }, /* Adaptec 3240S (Tornado) */
193 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2020ZCR ", 2 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
194 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2025ZCR ", 2 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
195 { aac_rkt_init, "aacraid", "ADAPTEC ", "ASR-2230S PCI-X ", 2 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
196 { aac_rkt_init, "aacraid", "ADAPTEC ", "ASR-2130S PCI-X ", 1 }, /* ASR-2130S (Lancer) */
197 { aac_rkt_init, "aacraid", "ADAPTEC ", "AAR-2820SA ", 1 }, /* AAR-2820SA (Intruder) */
198 { aac_rkt_init, "aacraid", "ADAPTEC ", "AAR-2620SA ", 1 }, /* AAR-2620SA (Intruder) */
199 { aac_rkt_init, "aacraid", "ADAPTEC ", "AAR-2420SA ", 1 }, /* AAR-2420SA (Intruder) */
200 { aac_rkt_init, "aacraid", "ICP ", "ICP9024RO ", 2 }, /* ICP9024RO (Lancer) */
201 { aac_rkt_init, "aacraid", "ICP ", "ICP9014RO ", 1 }, /* ICP9014RO (Lancer) */
202 { aac_rkt_init, "aacraid", "ICP ", "ICP9047MA ", 1 }, /* ICP9047MA (Lancer) */
203 { aac_rkt_init, "aacraid", "ICP ", "ICP9087MA ", 1 }, /* ICP9087MA (Lancer) */
204 { aac_rkt_init, "aacraid", "ICP ", "ICP5445AU ", 1 }, /* ICP5445AU (Hurricane44) */
205 { aac_rx_init, "aacraid", "ICP ", "ICP9085LI ", 1 }, /* ICP9085LI (Marauder-X) */
206 { aac_rx_init, "aacraid", "ICP ", "ICP5085BR ", 1 }, /* ICP5085BR (Marauder-E) */
207 { aac_rkt_init, "aacraid", "ICP ", "ICP9067MA ", 1 }, /* ICP9067MA (Intruder-6) */
208 { NULL , "aacraid", "ADAPTEC ", "Themisto ", 0, AAC_QUIRK_SLAVE }, /* Jupiter Platform */
209 { aac_rkt_init, "aacraid", "ADAPTEC ", "Callisto ", 2, AAC_QUIRK_MASTER }, /* Jupiter Platform */
210 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2020SA ", 1 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
211 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2025SA ", 1 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
212 { aac_rx_init, "aacraid", "ADAPTEC ", "AAR-2410SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
213 { aac_rx_init, "aacraid", "DELL ", "CERC SR2 ", 1, AAC_QUIRK_17SG }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
214 { aac_rx_init, "aacraid", "ADAPTEC ", "AAR-2810SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
215 { aac_rx_init, "aacraid", "ADAPTEC ", "AAR-21610SA SATA", 1, AAC_QUIRK_17SG }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
216 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2026ZCR ", 1 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
217 { aac_rx_init, "aacraid", "ADAPTEC ", "AAR-2610SA ", 1 }, /* SATA 6Ch (Bearcat) */
218 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2240S ", 1 }, /* ASR-2240S (SabreExpress) */
219 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4005 ", 1 }, /* ASR-4005 */
220 { aac_rx_init, "ServeRAID","IBM ", "ServeRAID 8i ", 1 }, /* IBM 8i (AvonPark) */
221 { aac_rkt_init, "ServeRAID","IBM ", "ServeRAID 8k-l8 ", 1 }, /* IBM 8k/8k-l8 (Aurora) */
222 { aac_rkt_init, "ServeRAID","IBM ", "ServeRAID 8k-l4 ", 1 }, /* IBM 8k/8k-l4 (Aurora Lite) */
223 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4000 ", 1 }, /* ASR-4000 (BlackBird & AvonPark) */
224 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4800SAS ", 1 }, /* ASR-4800SAS (Marauder-X) */
225 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4805SAS ", 1 }, /* ASR-4805SAS (Marauder-E) */
226 { aac_rkt_init, "aacraid", "ADAPTEC ", "ASR-3800 ", 1 }, /* ASR-3800 (Hurricane44) */
227
228 { aac_rx_init, "percraid", "DELL ", "PERC 320/DC ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Perc 320/DC*/
229 { aac_sa_init, "aacraid", "ADAPTEC ", "Adaptec 5400S ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
230 { aac_sa_init, "aacraid", "ADAPTEC ", "AAC-364 ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
231 { aac_sa_init, "percraid", "DELL ", "PERCRAID ", 4, AAC_QUIRK_34SG }, /* Dell PERC2/QC */
232 { aac_sa_init, "hpnraid", "HP ", "NetRAID ", 4, AAC_QUIRK_34SG }, /* HP NetRAID-4M */
233
234 { aac_rx_init, "aacraid", "DELL ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Dell Catchall */
235 { aac_rx_init, "aacraid", "Legend ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend Catchall */
236 { aac_rx_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec Catch All */
237 { aac_rkt_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec Rocket Catch All */
238 { aac_nark_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec NEMER/ARK Catch All */
239 { aac_src_init, "aacraid", "ADAPTEC ", "RAID ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 6 (Tupelo) */
240 { aac_srcv_init, "aacraid", "ADAPTEC ", "RAID ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 7 (Denali) */
241 { aac_srcv_init, "aacraid", "ADAPTEC ", "RAID ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 8 */
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
aac_queuecommand(struct Scsi_Host * shost,struct scsi_cmnd * cmd)254 static int aac_queuecommand(struct Scsi_Host *shost,
255 struct scsi_cmnd *cmd)
256 {
257 int r = 0;
258 cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
259 r = (aac_scsi_cmd(cmd) ? FAILED : 0);
260 return r;
261 }
262
263 /**
264 * aac_info - Returns the host adapter name
265 * @shost: Scsi host to report on
266 *
267 * Returns a static string describing the device in question
268 */
269
aac_info(struct Scsi_Host * shost)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
aac_get_driver_ident(int devtype)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
aac_biosparm(struct scsi_device * sdev,struct block_device * bdev,sector_t capacity,int * geom)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
aac_slave_configure(struct scsi_device * sdev)402 static int aac_slave_configure(struct scsi_device *sdev)
403 {
404 struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
405 int chn, tid;
406 unsigned int depth = 0;
407 unsigned int set_timeout = 0;
408 bool set_qd_dev_type = false;
409 u8 devtype = 0;
410
411 chn = aac_logical_to_phys(sdev_channel(sdev));
412 tid = sdev_id(sdev);
413 if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS && aac->sa_firmware) {
414 devtype = aac->hba_map[chn][tid].devtype;
415
416 if (devtype == AAC_DEVTYPE_NATIVE_RAW) {
417 depth = aac->hba_map[chn][tid].qd_limit;
418 set_timeout = 1;
419 goto common_config;
420 }
421 if (devtype == AAC_DEVTYPE_ARC_RAW) {
422 set_qd_dev_type = true;
423 set_timeout = 1;
424 goto common_config;
425 }
426 }
427
428 if (aac->jbod && (sdev->type == TYPE_DISK))
429 sdev->removable = 1;
430
431 if (sdev->type == TYPE_DISK
432 && sdev_channel(sdev) != CONTAINER_CHANNEL
433 && (!aac->jbod || sdev->inq_periph_qual)
434 && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))) {
435
436 if (expose_physicals == 0)
437 return -ENXIO;
438
439 if (expose_physicals < 0)
440 sdev->no_uld_attach = 1;
441 }
442
443 if (sdev->tagged_supported
444 && sdev->type == TYPE_DISK
445 && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
446 && !sdev->no_uld_attach) {
447
448 struct scsi_device * dev;
449 struct Scsi_Host *host = sdev->host;
450 unsigned num_lsu = 0;
451 unsigned num_one = 0;
452 unsigned cid;
453
454 set_timeout = 1;
455
456 for (cid = 0; cid < aac->maximum_num_containers; ++cid)
457 if (aac->fsa_dev[cid].valid)
458 ++num_lsu;
459
460 __shost_for_each_device(dev, host) {
461 if (dev->tagged_supported
462 && dev->type == TYPE_DISK
463 && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
464 && !dev->no_uld_attach) {
465 if ((sdev_channel(dev) != CONTAINER_CHANNEL)
466 || !aac->fsa_dev[sdev_id(dev)].valid) {
467 ++num_lsu;
468 }
469 } else {
470 ++num_one;
471 }
472 }
473
474 if (num_lsu == 0)
475 ++num_lsu;
476
477 depth = (host->can_queue - num_one) / num_lsu;
478
479 if (sdev_channel(sdev) != NATIVE_CHANNEL)
480 goto common_config;
481
482 set_qd_dev_type = true;
483
484 }
485
486 common_config:
487
488 /*
489 * Check if SATA drive
490 */
491 if (set_qd_dev_type) {
492 if (strncmp(sdev->vendor, "ATA", 3) == 0)
493 depth = 32;
494 else
495 depth = 64;
496 }
497
498 /*
499 * Firmware has an individual device recovery time typically
500 * of 35 seconds, give us a margin.
501 */
502 if (set_timeout && sdev->request_queue->rq_timeout < (45 * HZ))
503 blk_queue_rq_timeout(sdev->request_queue, 45*HZ);
504
505 if (depth > 256)
506 depth = 256;
507 else if (depth < 1)
508 depth = 1;
509
510 scsi_change_queue_depth(sdev, depth);
511
512 sdev->tagged_supported = 1;
513
514 return 0;
515 }
516
517 /**
518 * aac_change_queue_depth - alter queue depths
519 * @sdev: SCSI device we are considering
520 * @depth: desired queue depth
521 *
522 * Alters queue depths for target device based on the host adapter's
523 * total capacity and the queue depth supported by the target device.
524 */
525
aac_change_queue_depth(struct scsi_device * sdev,int depth)526 static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
527 {
528 struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
529 int chn, tid, is_native_device = 0;
530
531 chn = aac_logical_to_phys(sdev_channel(sdev));
532 tid = sdev_id(sdev);
533 if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS &&
534 aac->hba_map[chn][tid].devtype == AAC_DEVTYPE_NATIVE_RAW)
535 is_native_device = 1;
536
537 if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
538 (sdev_channel(sdev) == CONTAINER_CHANNEL)) {
539 struct scsi_device * dev;
540 struct Scsi_Host *host = sdev->host;
541 unsigned num = 0;
542
543 __shost_for_each_device(dev, host) {
544 if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
545 (sdev_channel(dev) == CONTAINER_CHANNEL))
546 ++num;
547 ++num;
548 }
549 if (num >= host->can_queue)
550 num = host->can_queue - 1;
551 if (depth > (host->can_queue - num))
552 depth = host->can_queue - num;
553 if (depth > 256)
554 depth = 256;
555 else if (depth < 2)
556 depth = 2;
557 return scsi_change_queue_depth(sdev, depth);
558 } else if (is_native_device) {
559 scsi_change_queue_depth(sdev, aac->hba_map[chn][tid].qd_limit);
560 } else {
561 scsi_change_queue_depth(sdev, 1);
562 }
563 return sdev->queue_depth;
564 }
565
aac_show_raid_level(struct device * dev,struct device_attribute * attr,char * buf)566 static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf)
567 {
568 struct scsi_device *sdev = to_scsi_device(dev);
569 struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
570 if (sdev_channel(sdev) != CONTAINER_CHANNEL)
571 return snprintf(buf, PAGE_SIZE, sdev->no_uld_attach
572 ? "Hidden\n" :
573 ((aac->jbod && (sdev->type == TYPE_DISK)) ? "JBOD\n" : ""));
574 return snprintf(buf, PAGE_SIZE, "%s\n",
575 get_container_type(aac->fsa_dev[sdev_id(sdev)].type));
576 }
577
578 static struct device_attribute aac_raid_level_attr = {
579 .attr = {
580 .name = "level",
581 .mode = S_IRUGO,
582 },
583 .show = aac_show_raid_level
584 };
585
aac_show_unique_id(struct device * dev,struct device_attribute * attr,char * buf)586 static ssize_t aac_show_unique_id(struct device *dev,
587 struct device_attribute *attr, char *buf)
588 {
589 struct scsi_device *sdev = to_scsi_device(dev);
590 struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
591 unsigned char sn[16];
592
593 memset(sn, 0, sizeof(sn));
594
595 if (sdev_channel(sdev) == CONTAINER_CHANNEL)
596 memcpy(sn, aac->fsa_dev[sdev_id(sdev)].identifier, sizeof(sn));
597
598 return snprintf(buf, 16 * 2 + 2,
599 "%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X\n",
600 sn[0], sn[1], sn[2], sn[3],
601 sn[4], sn[5], sn[6], sn[7],
602 sn[8], sn[9], sn[10], sn[11],
603 sn[12], sn[13], sn[14], sn[15]);
604 }
605
606 static struct device_attribute aac_unique_id_attr = {
607 .attr = {
608 .name = "unique_id",
609 .mode = 0444,
610 },
611 .show = aac_show_unique_id
612 };
613
614
615
616 static struct device_attribute *aac_dev_attrs[] = {
617 &aac_raid_level_attr,
618 &aac_unique_id_attr,
619 NULL,
620 };
621
aac_ioctl(struct scsi_device * sdev,int cmd,void __user * arg)622 static int aac_ioctl(struct scsi_device *sdev, int cmd, void __user * arg)
623 {
624 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
625 if (!capable(CAP_SYS_RAWIO))
626 return -EPERM;
627 return aac_do_ioctl(dev, cmd, arg);
628 }
629
get_num_of_incomplete_fibs(struct aac_dev * aac)630 static int get_num_of_incomplete_fibs(struct aac_dev *aac)
631 {
632
633 unsigned long flags;
634 struct scsi_device *sdev = NULL;
635 struct Scsi_Host *shost = aac->scsi_host_ptr;
636 struct scsi_cmnd *scmnd = NULL;
637 struct device *ctrl_dev;
638
639 int mlcnt = 0;
640 int llcnt = 0;
641 int ehcnt = 0;
642 int fwcnt = 0;
643 int krlcnt = 0;
644
645 __shost_for_each_device(sdev, shost) {
646 spin_lock_irqsave(&sdev->list_lock, flags);
647 list_for_each_entry(scmnd, &sdev->cmd_list, list) {
648 switch (scmnd->SCp.phase) {
649 case AAC_OWNER_FIRMWARE:
650 fwcnt++;
651 break;
652 case AAC_OWNER_ERROR_HANDLER:
653 ehcnt++;
654 break;
655 case AAC_OWNER_LOWLEVEL:
656 llcnt++;
657 break;
658 case AAC_OWNER_MIDLEVEL:
659 mlcnt++;
660 break;
661 default:
662 krlcnt++;
663 break;
664 }
665 }
666 spin_unlock_irqrestore(&sdev->list_lock, flags);
667 }
668
669 ctrl_dev = &aac->pdev->dev;
670
671 dev_info(ctrl_dev, "outstanding cmd: midlevel-%d\n", mlcnt);
672 dev_info(ctrl_dev, "outstanding cmd: lowlevel-%d\n", llcnt);
673 dev_info(ctrl_dev, "outstanding cmd: error handler-%d\n", ehcnt);
674 dev_info(ctrl_dev, "outstanding cmd: firmware-%d\n", fwcnt);
675 dev_info(ctrl_dev, "outstanding cmd: kernel-%d\n", krlcnt);
676
677 return mlcnt + llcnt + ehcnt + fwcnt;
678 }
679
aac_eh_abort(struct scsi_cmnd * cmd)680 static int aac_eh_abort(struct scsi_cmnd* cmd)
681 {
682 struct scsi_device * dev = cmd->device;
683 struct Scsi_Host * host = dev->host;
684 struct aac_dev * aac = (struct aac_dev *)host->hostdata;
685 int count, found;
686 u32 bus, cid;
687 int ret = FAILED;
688
689 bus = aac_logical_to_phys(scmd_channel(cmd));
690 cid = scmd_id(cmd);
691 if (aac->hba_map[bus][cid].devtype == AAC_DEVTYPE_NATIVE_RAW) {
692 struct fib *fib;
693 struct aac_hba_tm_req *tmf;
694 int status;
695 u64 address;
696 __le32 managed_request_id;
697
698 pr_err("%s: Host adapter abort request (%d,%d,%d,%d)\n",
699 AAC_DRIVERNAME,
700 host->host_no, sdev_channel(dev), sdev_id(dev), (int)dev->lun);
701
702 found = 0;
703 for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
704 fib = &aac->fibs[count];
705 if (*(u8 *)fib->hw_fib_va != 0 &&
706 (fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) &&
707 (fib->callback_data == cmd)) {
708 found = 1;
709 managed_request_id = ((struct aac_hba_cmd_req *)
710 fib->hw_fib_va)->request_id;
711 break;
712 }
713 }
714 if (!found)
715 return ret;
716
717 /* start a HBA_TMF_ABORT_TASK TMF request */
718 fib = aac_fib_alloc(aac);
719 if (!fib)
720 return ret;
721
722 tmf = (struct aac_hba_tm_req *)fib->hw_fib_va;
723 memset(tmf, 0, sizeof(*tmf));
724 tmf->tmf = HBA_TMF_ABORT_TASK;
725 tmf->it_nexus = aac->hba_map[bus][cid].rmw_nexus;
726 tmf->lun[1] = cmd->device->lun;
727
728 address = (u64)fib->hw_error_pa;
729 tmf->error_ptr_hi = cpu_to_le32((u32)(address >> 32));
730 tmf->error_ptr_lo = cpu_to_le32((u32)(address & 0xffffffff));
731 tmf->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
732
733 fib->hbacmd_size = sizeof(*tmf);
734 cmd->SCp.sent_command = 0;
735
736 status = aac_hba_send(HBA_IU_TYPE_SCSI_TM_REQ, fib,
737 (fib_callback) aac_hba_callback,
738 (void *) cmd);
739
740 /* Wait up to 15 secs for completion */
741 for (count = 0; count < 15; ++count) {
742 if (cmd->SCp.sent_command) {
743 ret = SUCCESS;
744 break;
745 }
746 msleep(1000);
747 }
748
749 if (ret != SUCCESS)
750 pr_err("%s: Host adapter abort request timed out\n",
751 AAC_DRIVERNAME);
752 } else {
753 pr_err(
754 "%s: Host adapter abort request.\n"
755 "%s: Outstanding commands on (%d,%d,%d,%d):\n",
756 AAC_DRIVERNAME, AAC_DRIVERNAME,
757 host->host_no, sdev_channel(dev), sdev_id(dev),
758 (int)dev->lun);
759 switch (cmd->cmnd[0]) {
760 case SERVICE_ACTION_IN_16:
761 if (!(aac->raw_io_interface) ||
762 !(aac->raw_io_64) ||
763 ((cmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
764 break;
765 case INQUIRY:
766 case READ_CAPACITY:
767 /*
768 * Mark associated FIB to not complete,
769 * eh handler does this
770 */
771 for (count = 0;
772 count < (host->can_queue + AAC_NUM_MGT_FIB);
773 ++count) {
774 struct fib *fib = &aac->fibs[count];
775
776 if (fib->hw_fib_va->header.XferState &&
777 (fib->flags & FIB_CONTEXT_FLAG) &&
778 (fib->callback_data == cmd)) {
779 fib->flags |=
780 FIB_CONTEXT_FLAG_TIMED_OUT;
781 cmd->SCp.phase =
782 AAC_OWNER_ERROR_HANDLER;
783 ret = SUCCESS;
784 }
785 }
786 break;
787 case TEST_UNIT_READY:
788 /*
789 * Mark associated FIB to not complete,
790 * eh handler does this
791 */
792 for (count = 0;
793 count < (host->can_queue + AAC_NUM_MGT_FIB);
794 ++count) {
795 struct scsi_cmnd *command;
796 struct fib *fib = &aac->fibs[count];
797
798 command = fib->callback_data;
799
800 if ((fib->hw_fib_va->header.XferState &
801 cpu_to_le32
802 (Async | NoResponseExpected)) &&
803 (fib->flags & FIB_CONTEXT_FLAG) &&
804 ((command)) &&
805 (command->device == cmd->device)) {
806 fib->flags |=
807 FIB_CONTEXT_FLAG_TIMED_OUT;
808 command->SCp.phase =
809 AAC_OWNER_ERROR_HANDLER;
810 if (command == cmd)
811 ret = SUCCESS;
812 }
813 }
814 break;
815 }
816 }
817 return ret;
818 }
819
aac_eh_tmf_lun_reset_fib(struct aac_hba_map_info * info,struct fib * fib,u64 tmf_lun)820 static u8 aac_eh_tmf_lun_reset_fib(struct aac_hba_map_info *info,
821 struct fib *fib, u64 tmf_lun)
822 {
823 struct aac_hba_tm_req *tmf;
824 u64 address;
825
826 /* start a HBA_TMF_LUN_RESET TMF request */
827 tmf = (struct aac_hba_tm_req *)fib->hw_fib_va;
828 memset(tmf, 0, sizeof(*tmf));
829 tmf->tmf = HBA_TMF_LUN_RESET;
830 tmf->it_nexus = info->rmw_nexus;
831 int_to_scsilun(tmf_lun, (struct scsi_lun *)tmf->lun);
832
833 address = (u64)fib->hw_error_pa;
834 tmf->error_ptr_hi = cpu_to_le32
835 ((u32)(address >> 32));
836 tmf->error_ptr_lo = cpu_to_le32
837 ((u32)(address & 0xffffffff));
838 tmf->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
839 fib->hbacmd_size = sizeof(*tmf);
840
841 return HBA_IU_TYPE_SCSI_TM_REQ;
842 }
843
aac_eh_tmf_hard_reset_fib(struct aac_hba_map_info * info,struct fib * fib)844 static u8 aac_eh_tmf_hard_reset_fib(struct aac_hba_map_info *info,
845 struct fib *fib)
846 {
847 struct aac_hba_reset_req *rst;
848 u64 address;
849
850 /* already tried, start a hard reset now */
851 rst = (struct aac_hba_reset_req *)fib->hw_fib_va;
852 memset(rst, 0, sizeof(*rst));
853 rst->it_nexus = info->rmw_nexus;
854
855 address = (u64)fib->hw_error_pa;
856 rst->error_ptr_hi = cpu_to_le32((u32)(address >> 32));
857 rst->error_ptr_lo = cpu_to_le32
858 ((u32)(address & 0xffffffff));
859 rst->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
860 fib->hbacmd_size = sizeof(*rst);
861
862 return HBA_IU_TYPE_SATA_REQ;
863 }
864
aac_tmf_callback(void * context,struct fib * fibptr)865 void aac_tmf_callback(void *context, struct fib *fibptr)
866 {
867 struct aac_hba_resp *err =
868 &((struct aac_native_hba *)fibptr->hw_fib_va)->resp.err;
869 struct aac_hba_map_info *info = context;
870 int res;
871
872 switch (err->service_response) {
873 case HBA_RESP_SVCRES_TMF_REJECTED:
874 res = -1;
875 break;
876 case HBA_RESP_SVCRES_TMF_LUN_INVALID:
877 res = 0;
878 break;
879 case HBA_RESP_SVCRES_TMF_COMPLETE:
880 case HBA_RESP_SVCRES_TMF_SUCCEEDED:
881 res = 0;
882 break;
883 default:
884 res = -2;
885 break;
886 }
887 aac_fib_complete(fibptr);
888
889 info->reset_state = res;
890 }
891
892 /*
893 * aac_eh_dev_reset - Device reset command handling
894 * @scsi_cmd: SCSI command block causing the reset
895 *
896 */
aac_eh_dev_reset(struct scsi_cmnd * cmd)897 static int aac_eh_dev_reset(struct scsi_cmnd *cmd)
898 {
899 struct scsi_device * dev = cmd->device;
900 struct Scsi_Host * host = dev->host;
901 struct aac_dev * aac = (struct aac_dev *)host->hostdata;
902 struct aac_hba_map_info *info;
903 int count;
904 u32 bus, cid;
905 struct fib *fib;
906 int ret = FAILED;
907 int status;
908 u8 command;
909
910 bus = aac_logical_to_phys(scmd_channel(cmd));
911 cid = scmd_id(cmd);
912
913 if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS)
914 return FAILED;
915
916 info = &aac->hba_map[bus][cid];
917
918 if (info->devtype != AAC_DEVTYPE_NATIVE_RAW &&
919 info->reset_state > 0)
920 return FAILED;
921
922 pr_err("%s: Host adapter reset request. SCSI hang ?\n",
923 AAC_DRIVERNAME);
924
925 fib = aac_fib_alloc(aac);
926 if (!fib)
927 return ret;
928
929 /* start a HBA_TMF_LUN_RESET TMF request */
930 command = aac_eh_tmf_lun_reset_fib(info, fib, dev->lun);
931
932 info->reset_state = 1;
933
934 status = aac_hba_send(command, fib,
935 (fib_callback) aac_tmf_callback,
936 (void *) info);
937
938 /* Wait up to 15 seconds for completion */
939 for (count = 0; count < 15; ++count) {
940 if (info->reset_state == 0) {
941 ret = info->reset_state == 0 ? SUCCESS : FAILED;
942 break;
943 }
944 msleep(1000);
945 }
946
947 return ret;
948 }
949
950 /*
951 * aac_eh_target_reset - Target reset command handling
952 * @scsi_cmd: SCSI command block causing the reset
953 *
954 */
aac_eh_target_reset(struct scsi_cmnd * cmd)955 static int aac_eh_target_reset(struct scsi_cmnd *cmd)
956 {
957 struct scsi_device * dev = cmd->device;
958 struct Scsi_Host * host = dev->host;
959 struct aac_dev * aac = (struct aac_dev *)host->hostdata;
960 struct aac_hba_map_info *info;
961 int count;
962 u32 bus, cid;
963 int ret = FAILED;
964 struct fib *fib;
965 int status;
966 u8 command;
967
968 bus = aac_logical_to_phys(scmd_channel(cmd));
969 cid = scmd_id(cmd);
970
971 if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS)
972 return FAILED;
973
974 info = &aac->hba_map[bus][cid];
975
976 if (info->devtype != AAC_DEVTYPE_NATIVE_RAW &&
977 info->reset_state > 0)
978 return FAILED;
979
980 pr_err("%s: Host adapter reset request. SCSI hang ?\n",
981 AAC_DRIVERNAME);
982
983 fib = aac_fib_alloc(aac);
984 if (!fib)
985 return ret;
986
987
988 /* already tried, start a hard reset now */
989 command = aac_eh_tmf_hard_reset_fib(info, fib);
990
991 info->reset_state = 2;
992
993 status = aac_hba_send(command, fib,
994 (fib_callback) aac_tmf_callback,
995 (void *) info);
996
997 /* Wait up to 15 seconds for completion */
998 for (count = 0; count < 15; ++count) {
999 if (info->reset_state <= 0) {
1000 ret = info->reset_state == 0 ? SUCCESS : FAILED;
1001 break;
1002 }
1003 msleep(1000);
1004 }
1005
1006 return ret;
1007 }
1008
1009 /*
1010 * aac_eh_bus_reset - Bus reset command handling
1011 * @scsi_cmd: SCSI command block causing the reset
1012 *
1013 */
aac_eh_bus_reset(struct scsi_cmnd * cmd)1014 static int aac_eh_bus_reset(struct scsi_cmnd* cmd)
1015 {
1016 struct scsi_device * dev = cmd->device;
1017 struct Scsi_Host * host = dev->host;
1018 struct aac_dev * aac = (struct aac_dev *)host->hostdata;
1019 int count;
1020 u32 cmd_bus;
1021 int status = 0;
1022
1023
1024 cmd_bus = aac_logical_to_phys(scmd_channel(cmd));
1025 /* Mark the assoc. FIB to not complete, eh handler does this */
1026 for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
1027 struct fib *fib = &aac->fibs[count];
1028
1029 if (fib->hw_fib_va->header.XferState &&
1030 (fib->flags & FIB_CONTEXT_FLAG) &&
1031 (fib->flags & FIB_CONTEXT_FLAG_SCSI_CMD)) {
1032 struct aac_hba_map_info *info;
1033 u32 bus, cid;
1034
1035 cmd = (struct scsi_cmnd *)fib->callback_data;
1036 bus = aac_logical_to_phys(scmd_channel(cmd));
1037 if (bus != cmd_bus)
1038 continue;
1039 cid = scmd_id(cmd);
1040 info = &aac->hba_map[bus][cid];
1041 if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS ||
1042 info->devtype != AAC_DEVTYPE_NATIVE_RAW) {
1043 fib->flags |= FIB_CONTEXT_FLAG_EH_RESET;
1044 cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
1045 }
1046 }
1047 }
1048
1049 pr_err("%s: Host adapter reset request. SCSI hang ?\n", AAC_DRIVERNAME);
1050
1051 /*
1052 * Check the health of the controller
1053 */
1054 status = aac_adapter_check_health(aac);
1055 if (status)
1056 dev_err(&aac->pdev->dev, "Adapter health - %d\n", status);
1057
1058 count = get_num_of_incomplete_fibs(aac);
1059 return (count == 0) ? SUCCESS : FAILED;
1060 }
1061
1062 /*
1063 * aac_eh_host_reset - Host reset command handling
1064 * @scsi_cmd: SCSI command block causing the reset
1065 *
1066 */
aac_eh_host_reset(struct scsi_cmnd * cmd)1067 int aac_eh_host_reset(struct scsi_cmnd *cmd)
1068 {
1069 struct scsi_device * dev = cmd->device;
1070 struct Scsi_Host * host = dev->host;
1071 struct aac_dev * aac = (struct aac_dev *)host->hostdata;
1072 int ret = FAILED;
1073 __le32 supported_options2 = 0;
1074 bool is_mu_reset;
1075 bool is_ignore_reset;
1076 bool is_doorbell_reset;
1077
1078 /*
1079 * Check if reset is supported by the firmware
1080 */
1081 supported_options2 = aac->supplement_adapter_info.supported_options2;
1082 is_mu_reset = supported_options2 & AAC_OPTION_MU_RESET;
1083 is_doorbell_reset = supported_options2 & AAC_OPTION_DOORBELL_RESET;
1084 is_ignore_reset = supported_options2 & AAC_OPTION_IGNORE_RESET;
1085 /*
1086 * This adapter needs a blind reset, only do so for
1087 * Adapters that support a register, instead of a commanded,
1088 * reset.
1089 */
1090 if ((is_mu_reset || is_doorbell_reset)
1091 && aac_check_reset
1092 && (aac_check_reset != -1 || !is_ignore_reset)) {
1093 /* Bypass wait for command quiesce */
1094 if (aac_reset_adapter(aac, 2, IOP_HWSOFT_RESET) == 0)
1095 ret = SUCCESS;
1096 }
1097 /*
1098 * Reset EH state
1099 */
1100 if (ret == SUCCESS) {
1101 int bus, cid;
1102 struct aac_hba_map_info *info;
1103
1104 for (bus = 0; bus < AAC_MAX_BUSES; bus++) {
1105 for (cid = 0; cid < AAC_MAX_TARGETS; cid++) {
1106 info = &aac->hba_map[bus][cid];
1107 if (info->devtype == AAC_DEVTYPE_NATIVE_RAW)
1108 info->reset_state = 0;
1109 }
1110 }
1111 }
1112 return ret;
1113 }
1114
1115 /**
1116 * aac_cfg_open - open a configuration file
1117 * @inode: inode being opened
1118 * @file: file handle attached
1119 *
1120 * Called when the configuration device is opened. Does the needed
1121 * set up on the handle and then returns
1122 *
1123 * Bugs: This needs extending to check a given adapter is present
1124 * so we can support hot plugging, and to ref count adapters.
1125 */
1126
aac_cfg_open(struct inode * inode,struct file * file)1127 static int aac_cfg_open(struct inode *inode, struct file *file)
1128 {
1129 struct aac_dev *aac;
1130 unsigned minor_number = iminor(inode);
1131 int err = -ENODEV;
1132
1133 mutex_lock(&aac_mutex); /* BKL pushdown: nothing else protects this list */
1134 list_for_each_entry(aac, &aac_devices, entry) {
1135 if (aac->id == minor_number) {
1136 file->private_data = aac;
1137 err = 0;
1138 break;
1139 }
1140 }
1141 mutex_unlock(&aac_mutex);
1142
1143 return err;
1144 }
1145
1146 /**
1147 * aac_cfg_ioctl - AAC configuration request
1148 * @inode: inode of device
1149 * @file: file handle
1150 * @cmd: ioctl command code
1151 * @arg: argument
1152 *
1153 * Handles a configuration ioctl. Currently this involves wrapping it
1154 * up and feeding it into the nasty windowsalike glue layer.
1155 *
1156 * Bugs: Needs locking against parallel ioctls lower down
1157 * Bugs: Needs to handle hot plugging
1158 */
1159
aac_cfg_ioctl(struct file * file,unsigned int cmd,unsigned long arg)1160 static long aac_cfg_ioctl(struct file *file,
1161 unsigned int cmd, unsigned long arg)
1162 {
1163 struct aac_dev *aac = (struct aac_dev *)file->private_data;
1164
1165 if (!capable(CAP_SYS_RAWIO))
1166 return -EPERM;
1167
1168 return aac_do_ioctl(aac, cmd, (void __user *)arg);
1169 }
1170
1171 #ifdef CONFIG_COMPAT
aac_compat_do_ioctl(struct aac_dev * dev,unsigned cmd,unsigned long arg)1172 static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long arg)
1173 {
1174 long ret;
1175 switch (cmd) {
1176 case FSACTL_MINIPORT_REV_CHECK:
1177 case FSACTL_SENDFIB:
1178 case FSACTL_OPEN_GET_ADAPTER_FIB:
1179 case FSACTL_CLOSE_GET_ADAPTER_FIB:
1180 case FSACTL_SEND_RAW_SRB:
1181 case FSACTL_GET_PCI_INFO:
1182 case FSACTL_QUERY_DISK:
1183 case FSACTL_DELETE_DISK:
1184 case FSACTL_FORCE_DELETE_DISK:
1185 case FSACTL_GET_CONTAINERS:
1186 case FSACTL_SEND_LARGE_FIB:
1187 ret = aac_do_ioctl(dev, cmd, (void __user *)arg);
1188 break;
1189
1190 case FSACTL_GET_NEXT_ADAPTER_FIB: {
1191 struct fib_ioctl __user *f;
1192
1193 f = compat_alloc_user_space(sizeof(*f));
1194 ret = 0;
1195 if (clear_user(f, sizeof(*f)))
1196 ret = -EFAULT;
1197 if (copy_in_user(f, (void __user *)arg, sizeof(struct fib_ioctl) - sizeof(u32)))
1198 ret = -EFAULT;
1199 if (!ret)
1200 ret = aac_do_ioctl(dev, cmd, f);
1201 break;
1202 }
1203
1204 default:
1205 ret = -ENOIOCTLCMD;
1206 break;
1207 }
1208 return ret;
1209 }
1210
aac_compat_ioctl(struct scsi_device * sdev,int cmd,void __user * arg)1211 static int aac_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
1212 {
1213 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
1214 if (!capable(CAP_SYS_RAWIO))
1215 return -EPERM;
1216 return aac_compat_do_ioctl(dev, cmd, (unsigned long)arg);
1217 }
1218
aac_compat_cfg_ioctl(struct file * file,unsigned cmd,unsigned long arg)1219 static long aac_compat_cfg_ioctl(struct file *file, unsigned cmd, unsigned long arg)
1220 {
1221 if (!capable(CAP_SYS_RAWIO))
1222 return -EPERM;
1223 return aac_compat_do_ioctl(file->private_data, cmd, arg);
1224 }
1225 #endif
1226
aac_show_model(struct device * device,struct device_attribute * attr,char * buf)1227 static ssize_t aac_show_model(struct device *device,
1228 struct device_attribute *attr, char *buf)
1229 {
1230 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1231 int len;
1232
1233 if (dev->supplement_adapter_info.adapter_type_text[0]) {
1234 char *cp = dev->supplement_adapter_info.adapter_type_text;
1235 while (*cp && *cp != ' ')
1236 ++cp;
1237 while (*cp == ' ')
1238 ++cp;
1239 len = snprintf(buf, PAGE_SIZE, "%s\n", cp);
1240 } else
1241 len = snprintf(buf, PAGE_SIZE, "%s\n",
1242 aac_drivers[dev->cardtype].model);
1243 return len;
1244 }
1245
aac_show_vendor(struct device * device,struct device_attribute * attr,char * buf)1246 static ssize_t aac_show_vendor(struct device *device,
1247 struct device_attribute *attr, char *buf)
1248 {
1249 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1250 struct aac_supplement_adapter_info *sup_adap_info;
1251 int len;
1252
1253 sup_adap_info = &dev->supplement_adapter_info;
1254 if (sup_adap_info->adapter_type_text[0]) {
1255 char *cp = sup_adap_info->adapter_type_text;
1256 while (*cp && *cp != ' ')
1257 ++cp;
1258 len = snprintf(buf, PAGE_SIZE, "%.*s\n",
1259 (int)(cp - (char *)sup_adap_info->adapter_type_text),
1260 sup_adap_info->adapter_type_text);
1261 } else
1262 len = snprintf(buf, PAGE_SIZE, "%s\n",
1263 aac_drivers[dev->cardtype].vname);
1264 return len;
1265 }
1266
aac_show_flags(struct device * cdev,struct device_attribute * attr,char * buf)1267 static ssize_t aac_show_flags(struct device *cdev,
1268 struct device_attribute *attr, char *buf)
1269 {
1270 int len = 0;
1271 struct aac_dev *dev = (struct aac_dev*)class_to_shost(cdev)->hostdata;
1272
1273 if (nblank(dprintk(x)))
1274 len = snprintf(buf, PAGE_SIZE, "dprintk\n");
1275 #ifdef AAC_DETAILED_STATUS_INFO
1276 len += snprintf(buf + len, PAGE_SIZE - len,
1277 "AAC_DETAILED_STATUS_INFO\n");
1278 #endif
1279 if (dev->raw_io_interface && dev->raw_io_64)
1280 len += snprintf(buf + len, PAGE_SIZE - len,
1281 "SAI_READ_CAPACITY_16\n");
1282 if (dev->jbod)
1283 len += snprintf(buf + len, PAGE_SIZE - len, "SUPPORTED_JBOD\n");
1284 if (dev->supplement_adapter_info.supported_options2 &
1285 AAC_OPTION_POWER_MANAGEMENT)
1286 len += snprintf(buf + len, PAGE_SIZE - len,
1287 "SUPPORTED_POWER_MANAGEMENT\n");
1288 if (dev->msi)
1289 len += snprintf(buf + len, PAGE_SIZE - len, "PCI_HAS_MSI\n");
1290 return len;
1291 }
1292
aac_show_kernel_version(struct device * device,struct device_attribute * attr,char * buf)1293 static ssize_t aac_show_kernel_version(struct device *device,
1294 struct device_attribute *attr,
1295 char *buf)
1296 {
1297 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1298 int len, tmp;
1299
1300 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
1301 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
1302 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
1303 le32_to_cpu(dev->adapter_info.kernelbuild));
1304 return len;
1305 }
1306
aac_show_monitor_version(struct device * device,struct device_attribute * attr,char * buf)1307 static ssize_t aac_show_monitor_version(struct device *device,
1308 struct device_attribute *attr,
1309 char *buf)
1310 {
1311 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1312 int len, tmp;
1313
1314 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
1315 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
1316 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
1317 le32_to_cpu(dev->adapter_info.monitorbuild));
1318 return len;
1319 }
1320
aac_show_bios_version(struct device * device,struct device_attribute * attr,char * buf)1321 static ssize_t aac_show_bios_version(struct device *device,
1322 struct device_attribute *attr,
1323 char *buf)
1324 {
1325 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1326 int len, tmp;
1327
1328 tmp = le32_to_cpu(dev->adapter_info.biosrev);
1329 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
1330 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
1331 le32_to_cpu(dev->adapter_info.biosbuild));
1332 return len;
1333 }
1334
aac_show_driver_version(struct device * device,struct device_attribute * attr,char * buf)1335 static ssize_t aac_show_driver_version(struct device *device,
1336 struct device_attribute *attr,
1337 char *buf)
1338 {
1339 return snprintf(buf, PAGE_SIZE, "%s\n", aac_driver_version);
1340 }
1341
aac_show_serial_number(struct device * device,struct device_attribute * attr,char * buf)1342 static ssize_t aac_show_serial_number(struct device *device,
1343 struct device_attribute *attr, char *buf)
1344 {
1345 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1346 int len = 0;
1347
1348 if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
1349 len = snprintf(buf, 16, "%06X\n",
1350 le32_to_cpu(dev->adapter_info.serial[0]));
1351 if (len &&
1352 !memcmp(&dev->supplement_adapter_info.mfg_pcba_serial_no[
1353 sizeof(dev->supplement_adapter_info.mfg_pcba_serial_no)-len],
1354 buf, len-1))
1355 len = snprintf(buf, 16, "%.*s\n",
1356 (int)sizeof(dev->supplement_adapter_info.mfg_pcba_serial_no),
1357 dev->supplement_adapter_info.mfg_pcba_serial_no);
1358
1359 return min(len, 16);
1360 }
1361
aac_show_max_channel(struct device * device,struct device_attribute * attr,char * buf)1362 static ssize_t aac_show_max_channel(struct device *device,
1363 struct device_attribute *attr, char *buf)
1364 {
1365 return snprintf(buf, PAGE_SIZE, "%d\n",
1366 class_to_shost(device)->max_channel);
1367 }
1368
aac_show_max_id(struct device * device,struct device_attribute * attr,char * buf)1369 static ssize_t aac_show_max_id(struct device *device,
1370 struct device_attribute *attr, char *buf)
1371 {
1372 return snprintf(buf, PAGE_SIZE, "%d\n",
1373 class_to_shost(device)->max_id);
1374 }
1375
aac_store_reset_adapter(struct device * device,struct device_attribute * attr,const char * buf,size_t count)1376 static ssize_t aac_store_reset_adapter(struct device *device,
1377 struct device_attribute *attr,
1378 const char *buf, size_t count)
1379 {
1380 int retval = -EACCES;
1381 int bled = 0;
1382 struct aac_dev *aac;
1383
1384
1385 if (!capable(CAP_SYS_ADMIN))
1386 return retval;
1387
1388 aac = (struct aac_dev *)class_to_shost(device)->hostdata;
1389 bled = buf[0] == '!' ? 1:0;
1390 retval = aac_reset_adapter(aac, bled, IOP_HWSOFT_RESET);
1391 if (retval >= 0)
1392 retval = count;
1393 return retval;
1394 }
1395
aac_show_reset_adapter(struct device * device,struct device_attribute * attr,char * buf)1396 static ssize_t aac_show_reset_adapter(struct device *device,
1397 struct device_attribute *attr,
1398 char *buf)
1399 {
1400 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1401 int len, tmp;
1402
1403 tmp = aac_adapter_check_health(dev);
1404 if ((tmp == 0) && dev->in_reset)
1405 tmp = -EBUSY;
1406 len = snprintf(buf, PAGE_SIZE, "0x%x\n", tmp);
1407 return len;
1408 }
1409
1410 static struct device_attribute aac_model = {
1411 .attr = {
1412 .name = "model",
1413 .mode = S_IRUGO,
1414 },
1415 .show = aac_show_model,
1416 };
1417 static struct device_attribute aac_vendor = {
1418 .attr = {
1419 .name = "vendor",
1420 .mode = S_IRUGO,
1421 },
1422 .show = aac_show_vendor,
1423 };
1424 static struct device_attribute aac_flags = {
1425 .attr = {
1426 .name = "flags",
1427 .mode = S_IRUGO,
1428 },
1429 .show = aac_show_flags,
1430 };
1431 static struct device_attribute aac_kernel_version = {
1432 .attr = {
1433 .name = "hba_kernel_version",
1434 .mode = S_IRUGO,
1435 },
1436 .show = aac_show_kernel_version,
1437 };
1438 static struct device_attribute aac_monitor_version = {
1439 .attr = {
1440 .name = "hba_monitor_version",
1441 .mode = S_IRUGO,
1442 },
1443 .show = aac_show_monitor_version,
1444 };
1445 static struct device_attribute aac_bios_version = {
1446 .attr = {
1447 .name = "hba_bios_version",
1448 .mode = S_IRUGO,
1449 },
1450 .show = aac_show_bios_version,
1451 };
1452 static struct device_attribute aac_lld_version = {
1453 .attr = {
1454 .name = "driver_version",
1455 .mode = 0444,
1456 },
1457 .show = aac_show_driver_version,
1458 };
1459 static struct device_attribute aac_serial_number = {
1460 .attr = {
1461 .name = "serial_number",
1462 .mode = S_IRUGO,
1463 },
1464 .show = aac_show_serial_number,
1465 };
1466 static struct device_attribute aac_max_channel = {
1467 .attr = {
1468 .name = "max_channel",
1469 .mode = S_IRUGO,
1470 },
1471 .show = aac_show_max_channel,
1472 };
1473 static struct device_attribute aac_max_id = {
1474 .attr = {
1475 .name = "max_id",
1476 .mode = S_IRUGO,
1477 },
1478 .show = aac_show_max_id,
1479 };
1480 static struct device_attribute aac_reset = {
1481 .attr = {
1482 .name = "reset_host",
1483 .mode = S_IWUSR|S_IRUGO,
1484 },
1485 .store = aac_store_reset_adapter,
1486 .show = aac_show_reset_adapter,
1487 };
1488
1489 static struct device_attribute *aac_attrs[] = {
1490 &aac_model,
1491 &aac_vendor,
1492 &aac_flags,
1493 &aac_kernel_version,
1494 &aac_monitor_version,
1495 &aac_bios_version,
1496 &aac_lld_version,
1497 &aac_serial_number,
1498 &aac_max_channel,
1499 &aac_max_id,
1500 &aac_reset,
1501 NULL
1502 };
1503
aac_get_serial_number(struct device * device,char * buf)1504 ssize_t aac_get_serial_number(struct device *device, char *buf)
1505 {
1506 return aac_show_serial_number(device, &aac_serial_number, buf);
1507 }
1508
1509 static const struct file_operations aac_cfg_fops = {
1510 .owner = THIS_MODULE,
1511 .unlocked_ioctl = aac_cfg_ioctl,
1512 #ifdef CONFIG_COMPAT
1513 .compat_ioctl = aac_compat_cfg_ioctl,
1514 #endif
1515 .open = aac_cfg_open,
1516 .llseek = noop_llseek,
1517 };
1518
1519 static struct scsi_host_template aac_driver_template = {
1520 .module = THIS_MODULE,
1521 .name = "AAC",
1522 .proc_name = AAC_DRIVERNAME,
1523 .info = aac_info,
1524 .ioctl = aac_ioctl,
1525 #ifdef CONFIG_COMPAT
1526 .compat_ioctl = aac_compat_ioctl,
1527 #endif
1528 .queuecommand = aac_queuecommand,
1529 .bios_param = aac_biosparm,
1530 .shost_attrs = aac_attrs,
1531 .slave_configure = aac_slave_configure,
1532 .change_queue_depth = aac_change_queue_depth,
1533 .sdev_attrs = aac_dev_attrs,
1534 .eh_abort_handler = aac_eh_abort,
1535 .eh_device_reset_handler = aac_eh_dev_reset,
1536 .eh_target_reset_handler = aac_eh_target_reset,
1537 .eh_bus_reset_handler = aac_eh_bus_reset,
1538 .eh_host_reset_handler = aac_eh_host_reset,
1539 .can_queue = AAC_NUM_IO_FIB,
1540 .this_id = MAXIMUM_NUM_CONTAINERS,
1541 .sg_tablesize = 16,
1542 .max_sectors = 128,
1543 #if (AAC_NUM_IO_FIB > 256)
1544 .cmd_per_lun = 256,
1545 #else
1546 .cmd_per_lun = AAC_NUM_IO_FIB,
1547 #endif
1548 .use_clustering = ENABLE_CLUSTERING,
1549 .emulated = 1,
1550 .no_write_same = 1,
1551 };
1552
__aac_shutdown(struct aac_dev * aac)1553 static void __aac_shutdown(struct aac_dev * aac)
1554 {
1555 int i;
1556
1557 mutex_lock(&aac->ioctl_mutex);
1558 aac->adapter_shutdown = 1;
1559 mutex_unlock(&aac->ioctl_mutex);
1560
1561 if (aac->aif_thread) {
1562 int i;
1563 /* Clear out events first */
1564 for (i = 0; i < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); i++) {
1565 struct fib *fib = &aac->fibs[i];
1566 if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) &&
1567 (fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected)))
1568 up(&fib->event_wait);
1569 }
1570 kthread_stop(aac->thread);
1571 aac->thread = NULL;
1572 }
1573
1574 aac_send_shutdown(aac);
1575
1576 aac_adapter_disable_int(aac);
1577
1578 if (aac_is_src(aac)) {
1579 if (aac->max_msix > 1) {
1580 for (i = 0; i < aac->max_msix; i++) {
1581 free_irq(pci_irq_vector(aac->pdev, i),
1582 &(aac->aac_msix[i]));
1583 }
1584 } else {
1585 free_irq(aac->pdev->irq,
1586 &(aac->aac_msix[0]));
1587 }
1588 } else {
1589 free_irq(aac->pdev->irq, aac);
1590 }
1591 if (aac->msi)
1592 pci_disable_msi(aac->pdev);
1593 else if (aac->max_msix > 1)
1594 pci_disable_msix(aac->pdev);
1595 }
aac_init_char(void)1596 static void aac_init_char(void)
1597 {
1598 aac_cfg_major = register_chrdev(0, "aac", &aac_cfg_fops);
1599 if (aac_cfg_major < 0) {
1600 pr_err("aacraid: unable to register \"aac\" device.\n");
1601 }
1602 }
1603
aac_probe_one(struct pci_dev * pdev,const struct pci_device_id * id)1604 static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1605 {
1606 unsigned index = id->driver_data;
1607 struct Scsi_Host *shost;
1608 struct aac_dev *aac;
1609 struct list_head *insert = &aac_devices;
1610 int error = -ENODEV;
1611 int unique_id = 0;
1612 u64 dmamask;
1613 int mask_bits = 0;
1614 extern int aac_sync_mode;
1615
1616 /*
1617 * Only series 7 needs freset.
1618 */
1619 if (pdev->device == PMC_DEVICE_S7)
1620 pdev->needs_freset = 1;
1621
1622 list_for_each_entry(aac, &aac_devices, entry) {
1623 if (aac->id > unique_id)
1624 break;
1625 insert = &aac->entry;
1626 unique_id++;
1627 }
1628
1629 pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
1630 PCIE_LINK_STATE_CLKPM);
1631
1632 error = pci_enable_device(pdev);
1633 if (error)
1634 goto out;
1635 error = -ENODEV;
1636
1637 if (!(aac_drivers[index].quirks & AAC_QUIRK_SRC)) {
1638 error = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1639 if (error) {
1640 dev_err(&pdev->dev, "PCI 32 BIT dma mask set failed");
1641 goto out_disable_pdev;
1642 }
1643 }
1644
1645 /*
1646 * If the quirk31 bit is set, the adapter needs adapter
1647 * to driver communication memory to be allocated below 2gig
1648 */
1649 if (aac_drivers[index].quirks & AAC_QUIRK_31BIT) {
1650 dmamask = DMA_BIT_MASK(31);
1651 mask_bits = 31;
1652 } else {
1653 dmamask = DMA_BIT_MASK(32);
1654 mask_bits = 32;
1655 }
1656
1657 error = pci_set_consistent_dma_mask(pdev, dmamask);
1658 if (error) {
1659 dev_err(&pdev->dev, "PCI %d B consistent dma mask set failed\n"
1660 , mask_bits);
1661 goto out_disable_pdev;
1662 }
1663
1664 pci_set_master(pdev);
1665
1666 shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
1667 if (!shost)
1668 goto out_disable_pdev;
1669
1670 shost->irq = pdev->irq;
1671 shost->unique_id = unique_id;
1672 shost->max_cmd_len = 16;
1673 shost->use_cmd_list = 1;
1674
1675 if (aac_cfg_major == AAC_CHARDEV_NEEDS_REINIT)
1676 aac_init_char();
1677
1678 aac = (struct aac_dev *)shost->hostdata;
1679 aac->base_start = pci_resource_start(pdev, 0);
1680 aac->scsi_host_ptr = shost;
1681 aac->pdev = pdev;
1682 aac->name = aac_driver_template.name;
1683 aac->id = shost->unique_id;
1684 aac->cardtype = index;
1685 INIT_LIST_HEAD(&aac->entry);
1686
1687 aac->fibs = kzalloc(sizeof(struct fib) * (shost->can_queue + AAC_NUM_MGT_FIB), GFP_KERNEL);
1688 if (!aac->fibs)
1689 goto out_free_host;
1690 spin_lock_init(&aac->fib_lock);
1691
1692 mutex_init(&aac->ioctl_mutex);
1693 /*
1694 * Map in the registers from the adapter.
1695 */
1696 aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
1697 if ((*aac_drivers[index].init)(aac)) {
1698 error = -ENODEV;
1699 goto out_unmap;
1700 }
1701
1702 if (aac->sync_mode) {
1703 if (aac_sync_mode)
1704 printk(KERN_INFO "%s%d: Sync. mode enforced "
1705 "by driver parameter. This will cause "
1706 "a significant performance decrease!\n",
1707 aac->name,
1708 aac->id);
1709 else
1710 printk(KERN_INFO "%s%d: Async. mode not supported "
1711 "by current driver, sync. mode enforced."
1712 "\nPlease update driver to get full performance.\n",
1713 aac->name,
1714 aac->id);
1715 }
1716
1717 /*
1718 * Start any kernel threads needed
1719 */
1720 aac->thread = kthread_run(aac_command_thread, aac, AAC_DRIVERNAME);
1721 if (IS_ERR(aac->thread)) {
1722 printk(KERN_ERR "aacraid: Unable to create command thread.\n");
1723 error = PTR_ERR(aac->thread);
1724 aac->thread = NULL;
1725 goto out_deinit;
1726 }
1727
1728 aac->maximum_num_channels = aac_drivers[index].channels;
1729 error = aac_get_adapter_info(aac);
1730 if (error < 0)
1731 goto out_deinit;
1732
1733 /*
1734 * Lets override negotiations and drop the maximum SG limit to 34
1735 */
1736 if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) &&
1737 (shost->sg_tablesize > 34)) {
1738 shost->sg_tablesize = 34;
1739 shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1740 }
1741
1742 if ((aac_drivers[index].quirks & AAC_QUIRK_17SG) &&
1743 (shost->sg_tablesize > 17)) {
1744 shost->sg_tablesize = 17;
1745 shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1746 }
1747
1748 error = pci_set_dma_max_seg_size(pdev,
1749 (aac->adapter_info.options & AAC_OPT_NEW_COMM) ?
1750 (shost->max_sectors << 9) : 65536);
1751 if (error)
1752 goto out_deinit;
1753
1754 /*
1755 * Firmware printf works only with older firmware.
1756 */
1757 if (aac_drivers[index].quirks & AAC_QUIRK_34SG)
1758 aac->printf_enabled = 1;
1759 else
1760 aac->printf_enabled = 0;
1761
1762 /*
1763 * max channel will be the physical channels plus 1 virtual channel
1764 * all containers are on the virtual channel 0 (CONTAINER_CHANNEL)
1765 * physical channels are address by their actual physical number+1
1766 */
1767 if (aac->nondasd_support || expose_physicals || aac->jbod)
1768 shost->max_channel = aac->maximum_num_channels;
1769 else
1770 shost->max_channel = 0;
1771
1772 aac_get_config_status(aac, 0);
1773 aac_get_containers(aac);
1774 list_add(&aac->entry, insert);
1775
1776 shost->max_id = aac->maximum_num_containers;
1777 if (shost->max_id < aac->maximum_num_physicals)
1778 shost->max_id = aac->maximum_num_physicals;
1779 if (shost->max_id < MAXIMUM_NUM_CONTAINERS)
1780 shost->max_id = MAXIMUM_NUM_CONTAINERS;
1781 else
1782 shost->this_id = shost->max_id;
1783
1784 if (!aac->sa_firmware && aac_drivers[index].quirks & AAC_QUIRK_SRC)
1785 aac_intr_normal(aac, 0, 2, 0, NULL);
1786
1787 /*
1788 * dmb - we may need to move the setting of these parms somewhere else once
1789 * we get a fib that can report the actual numbers
1790 */
1791 shost->max_lun = AAC_MAX_LUN;
1792
1793 pci_set_drvdata(pdev, shost);
1794
1795 error = scsi_add_host(shost, &pdev->dev);
1796 if (error)
1797 goto out_deinit;
1798 scsi_scan_host(shost);
1799
1800 pci_enable_pcie_error_reporting(pdev);
1801 pci_save_state(pdev);
1802
1803 return 0;
1804
1805 out_deinit:
1806 __aac_shutdown(aac);
1807 out_unmap:
1808 aac_fib_map_free(aac);
1809 if (aac->comm_addr)
1810 dma_free_coherent(&aac->pdev->dev, aac->comm_size,
1811 aac->comm_addr, aac->comm_phys);
1812 kfree(aac->queues);
1813 aac_adapter_ioremap(aac, 0);
1814 kfree(aac->fibs);
1815 kfree(aac->fsa_dev);
1816 out_free_host:
1817 scsi_host_put(shost);
1818 out_disable_pdev:
1819 pci_disable_device(pdev);
1820 out:
1821 return error;
1822 }
1823
aac_release_resources(struct aac_dev * aac)1824 static void aac_release_resources(struct aac_dev *aac)
1825 {
1826 aac_adapter_disable_int(aac);
1827 aac_free_irq(aac);
1828 }
1829
aac_acquire_resources(struct aac_dev * dev)1830 static int aac_acquire_resources(struct aac_dev *dev)
1831 {
1832 unsigned long status;
1833 /*
1834 * First clear out all interrupts. Then enable the one's that we
1835 * can handle.
1836 */
1837 while (!((status = src_readl(dev, MUnit.OMR)) & KERNEL_UP_AND_RUNNING)
1838 || status == 0xffffffff)
1839 msleep(20);
1840
1841 aac_adapter_disable_int(dev);
1842 aac_adapter_enable_int(dev);
1843
1844
1845 if (aac_is_src(dev))
1846 aac_define_int_mode(dev);
1847
1848 if (dev->msi_enabled)
1849 aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
1850
1851 if (aac_acquire_irq(dev))
1852 goto error_iounmap;
1853
1854 aac_adapter_enable_int(dev);
1855
1856 /*max msix may change after EEH
1857 * Re-assign vectors to fibs
1858 */
1859 aac_fib_vector_assign(dev);
1860
1861 if (!dev->sync_mode) {
1862 /* After EEH recovery or suspend resume, max_msix count
1863 * may change, therefore updating in init as well.
1864 */
1865 dev->init->r7.no_of_msix_vectors = cpu_to_le32(dev->max_msix);
1866 aac_adapter_start(dev);
1867 }
1868 return 0;
1869
1870 error_iounmap:
1871 return -1;
1872
1873 }
1874
1875 #if (defined(CONFIG_PM))
aac_suspend(struct pci_dev * pdev,pm_message_t state)1876 static int aac_suspend(struct pci_dev *pdev, pm_message_t state)
1877 {
1878
1879 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1880 struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1881
1882 scsi_block_requests(shost);
1883 aac_send_shutdown(aac);
1884
1885 aac_release_resources(aac);
1886
1887 pci_set_drvdata(pdev, shost);
1888 pci_save_state(pdev);
1889 pci_disable_device(pdev);
1890 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1891
1892 return 0;
1893 }
1894
aac_resume(struct pci_dev * pdev)1895 static int aac_resume(struct pci_dev *pdev)
1896 {
1897 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1898 struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1899 int r;
1900
1901 pci_set_power_state(pdev, PCI_D0);
1902 pci_enable_wake(pdev, PCI_D0, 0);
1903 pci_restore_state(pdev);
1904 r = pci_enable_device(pdev);
1905
1906 if (r)
1907 goto fail_device;
1908
1909 pci_set_master(pdev);
1910 if (aac_acquire_resources(aac))
1911 goto fail_device;
1912 /*
1913 * reset this flag to unblock ioctl() as it was set at
1914 * aac_send_shutdown() to block ioctls from upperlayer
1915 */
1916 aac->adapter_shutdown = 0;
1917 scsi_unblock_requests(shost);
1918
1919 return 0;
1920
1921 fail_device:
1922 printk(KERN_INFO "%s%d: resume failed.\n", aac->name, aac->id);
1923 scsi_host_put(shost);
1924 pci_disable_device(pdev);
1925 return -ENODEV;
1926 }
1927 #endif
1928
aac_shutdown(struct pci_dev * dev)1929 static void aac_shutdown(struct pci_dev *dev)
1930 {
1931 struct Scsi_Host *shost = pci_get_drvdata(dev);
1932 scsi_block_requests(shost);
1933 __aac_shutdown((struct aac_dev *)shost->hostdata);
1934 }
1935
aac_remove_one(struct pci_dev * pdev)1936 static void aac_remove_one(struct pci_dev *pdev)
1937 {
1938 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1939 struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1940
1941 scsi_remove_host(shost);
1942
1943 __aac_shutdown(aac);
1944 aac_fib_map_free(aac);
1945 dma_free_coherent(&aac->pdev->dev, aac->comm_size, aac->comm_addr,
1946 aac->comm_phys);
1947 kfree(aac->queues);
1948
1949 aac_adapter_ioremap(aac, 0);
1950
1951 kfree(aac->fibs);
1952 kfree(aac->fsa_dev);
1953
1954 list_del(&aac->entry);
1955 scsi_host_put(shost);
1956 pci_disable_device(pdev);
1957 if (list_empty(&aac_devices)) {
1958 unregister_chrdev(aac_cfg_major, "aac");
1959 aac_cfg_major = AAC_CHARDEV_NEEDS_REINIT;
1960 }
1961 }
1962
aac_flush_ios(struct aac_dev * aac)1963 static void aac_flush_ios(struct aac_dev *aac)
1964 {
1965 int i;
1966 struct scsi_cmnd *cmd;
1967
1968 for (i = 0; i < aac->scsi_host_ptr->can_queue; i++) {
1969 cmd = (struct scsi_cmnd *)aac->fibs[i].callback_data;
1970 if (cmd && (cmd->SCp.phase == AAC_OWNER_FIRMWARE)) {
1971 scsi_dma_unmap(cmd);
1972
1973 if (aac->handle_pci_error)
1974 cmd->result = DID_NO_CONNECT << 16;
1975 else
1976 cmd->result = DID_RESET << 16;
1977
1978 cmd->scsi_done(cmd);
1979 }
1980 }
1981 }
1982
aac_pci_error_detected(struct pci_dev * pdev,enum pci_channel_state error)1983 static pci_ers_result_t aac_pci_error_detected(struct pci_dev *pdev,
1984 enum pci_channel_state error)
1985 {
1986 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1987 struct aac_dev *aac = shost_priv(shost);
1988
1989 dev_err(&pdev->dev, "aacraid: PCI error detected %x\n", error);
1990
1991 switch (error) {
1992 case pci_channel_io_normal:
1993 return PCI_ERS_RESULT_CAN_RECOVER;
1994 case pci_channel_io_frozen:
1995 aac->handle_pci_error = 1;
1996
1997 scsi_block_requests(aac->scsi_host_ptr);
1998 aac_flush_ios(aac);
1999 aac_release_resources(aac);
2000
2001 pci_disable_pcie_error_reporting(pdev);
2002 aac_adapter_ioremap(aac, 0);
2003
2004 return PCI_ERS_RESULT_NEED_RESET;
2005 case pci_channel_io_perm_failure:
2006 aac->handle_pci_error = 1;
2007
2008 aac_flush_ios(aac);
2009 return PCI_ERS_RESULT_DISCONNECT;
2010 }
2011
2012 return PCI_ERS_RESULT_NEED_RESET;
2013 }
2014
aac_pci_mmio_enabled(struct pci_dev * pdev)2015 static pci_ers_result_t aac_pci_mmio_enabled(struct pci_dev *pdev)
2016 {
2017 dev_err(&pdev->dev, "aacraid: PCI error - mmio enabled\n");
2018 return PCI_ERS_RESULT_NEED_RESET;
2019 }
2020
aac_pci_slot_reset(struct pci_dev * pdev)2021 static pci_ers_result_t aac_pci_slot_reset(struct pci_dev *pdev)
2022 {
2023 dev_err(&pdev->dev, "aacraid: PCI error - slot reset\n");
2024 pci_restore_state(pdev);
2025 if (pci_enable_device(pdev)) {
2026 dev_warn(&pdev->dev,
2027 "aacraid: failed to enable slave\n");
2028 goto fail_device;
2029 }
2030
2031 pci_set_master(pdev);
2032
2033 if (pci_enable_device_mem(pdev)) {
2034 dev_err(&pdev->dev, "pci_enable_device_mem failed\n");
2035 goto fail_device;
2036 }
2037
2038 return PCI_ERS_RESULT_RECOVERED;
2039
2040 fail_device:
2041 dev_err(&pdev->dev, "aacraid: PCI error - slot reset failed\n");
2042 return PCI_ERS_RESULT_DISCONNECT;
2043 }
2044
2045
aac_pci_resume(struct pci_dev * pdev)2046 static void aac_pci_resume(struct pci_dev *pdev)
2047 {
2048 struct Scsi_Host *shost = pci_get_drvdata(pdev);
2049 struct scsi_device *sdev = NULL;
2050 struct aac_dev *aac = (struct aac_dev *)shost_priv(shost);
2051
2052 pci_cleanup_aer_uncorrect_error_status(pdev);
2053
2054 if (aac_adapter_ioremap(aac, aac->base_size)) {
2055
2056 dev_err(&pdev->dev, "aacraid: ioremap failed\n");
2057 /* remap failed, go back ... */
2058 aac->comm_interface = AAC_COMM_PRODUCER;
2059 if (aac_adapter_ioremap(aac, AAC_MIN_FOOTPRINT_SIZE)) {
2060 dev_warn(&pdev->dev,
2061 "aacraid: unable to map adapter.\n");
2062
2063 return;
2064 }
2065 }
2066
2067 msleep(10000);
2068
2069 aac_acquire_resources(aac);
2070
2071 /*
2072 * reset this flag to unblock ioctl() as it was set
2073 * at aac_send_shutdown() to block ioctls from upperlayer
2074 */
2075 aac->adapter_shutdown = 0;
2076 aac->handle_pci_error = 0;
2077
2078 shost_for_each_device(sdev, shost)
2079 if (sdev->sdev_state == SDEV_OFFLINE)
2080 sdev->sdev_state = SDEV_RUNNING;
2081 scsi_unblock_requests(aac->scsi_host_ptr);
2082 scsi_scan_host(aac->scsi_host_ptr);
2083 pci_save_state(pdev);
2084
2085 dev_err(&pdev->dev, "aacraid: PCI error - resume\n");
2086 }
2087
2088 static struct pci_error_handlers aac_pci_err_handler = {
2089 .error_detected = aac_pci_error_detected,
2090 .mmio_enabled = aac_pci_mmio_enabled,
2091 .slot_reset = aac_pci_slot_reset,
2092 .resume = aac_pci_resume,
2093 };
2094
2095 static struct pci_driver aac_pci_driver = {
2096 .name = AAC_DRIVERNAME,
2097 .id_table = aac_pci_tbl,
2098 .probe = aac_probe_one,
2099 .remove = aac_remove_one,
2100 #if (defined(CONFIG_PM))
2101 .suspend = aac_suspend,
2102 .resume = aac_resume,
2103 #endif
2104 .shutdown = aac_shutdown,
2105 .err_handler = &aac_pci_err_handler,
2106 };
2107
aac_init(void)2108 static int __init aac_init(void)
2109 {
2110 int error;
2111
2112 printk(KERN_INFO "Adaptec %s driver %s\n",
2113 AAC_DRIVERNAME, aac_driver_version);
2114
2115 error = pci_register_driver(&aac_pci_driver);
2116 if (error < 0)
2117 return error;
2118
2119 aac_init_char();
2120
2121
2122 return 0;
2123 }
2124
aac_exit(void)2125 static void __exit aac_exit(void)
2126 {
2127 if (aac_cfg_major > -1)
2128 unregister_chrdev(aac_cfg_major, "aac");
2129 pci_unregister_driver(&aac_pci_driver);
2130 }
2131
2132 module_init(aac_init);
2133 module_exit(aac_exit);
2134