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 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 #define AAC_DRIVER_VERSION "1.1-4" 31 #ifndef AAC_DRIVER_BRANCH 32 #define AAC_DRIVER_BRANCH "" 33 #endif 34 #define AAC_DRIVER_BUILD_DATE __DATE__ " " __TIME__ 35 #define AAC_DRIVERNAME "aacraid" 36 37 #include <linux/compat.h> 38 #include <linux/blkdev.h> 39 #include <linux/completion.h> 40 #include <linux/init.h> 41 #include <linux/interrupt.h> 42 #include <linux/kernel.h> 43 #include <linux/module.h> 44 #include <linux/moduleparam.h> 45 #include <linux/pci.h> 46 #include <linux/slab.h> 47 #include <linux/spinlock.h> 48 #include <linux/syscalls.h> 49 #include <linux/ioctl32.h> 50 #include <linux/delay.h> 51 #include <linux/smp_lock.h> 52 #include <asm/semaphore.h> 53 54 #include <scsi/scsi.h> 55 #include <scsi/scsi_cmnd.h> 56 #include <scsi/scsi_device.h> 57 #include <scsi/scsi_host.h> 58 #include <scsi/scsi_tcq.h> 59 #include <scsi/scsicam.h> 60 #include <scsi/scsi_eh.h> 61 62 #include "aacraid.h" 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 "and HP NetRAID-4M 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 }, /* ICP9024R0 (Lancer) */ 117 { 0x9005, 0x0286, 0x9005, 0x029f, 0, 0, 26 }, /* ICP9014R0 (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 }, /* ICP5085AU (Hurricane) */ 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-4005SAS */ 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-4000SAS (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-4810SAS (Hurricane */ 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 { 0,} 157 }; 158 MODULE_DEVICE_TABLE(pci, aac_pci_tbl); 159 160 /* 161 * dmb - For now we add the number of channels to this structure. 162 * In the future we should add a fib that reports the number of channels 163 * for the card. At that time we can remove the channels from here 164 */ 165 static struct aac_driver_ident aac_drivers[] = { 166 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 2/Si (Iguana/PERC2Si) */ 167 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Opal/PERC3Di) */ 168 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Si (SlimFast/PERC3Si */ 169 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */ 170 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Viper/PERC3DiV) */ 171 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Lexus/PERC3DiL) */ 172 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Jaguar/PERC3DiJ) */ 173 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Dagger/PERC3DiD) */ 174 { aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Boxster/PERC3DiB) */ 175 { aac_rx_init, "aacraid", "ADAPTEC ", "catapult ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* catapult */ 176 { aac_rx_init, "aacraid", "ADAPTEC ", "tomcat ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* tomcat */ 177 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2120S ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2120S (Crusader) */ 178 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2200S ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2200S (Vulcan) */ 179 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2200S ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2200S (Vulcan-2m) */ 180 { aac_rx_init, "aacraid", "Legend ", "Legend S220 ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Legend S220 (Legend Crusader) */ 181 { aac_rx_init, "aacraid", "Legend ", "Legend S230 ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Legend S230 (Legend Vulcan) */ 182 183 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 3230S ", 2 }, /* Adaptec 3230S (Harrier) */ 184 { aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 3240S ", 2 }, /* Adaptec 3240S (Tornado) */ 185 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2020ZCR ", 2 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */ 186 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2025ZCR ", 2 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */ 187 { aac_rkt_init, "aacraid", "ADAPTEC ", "ASR-2230S PCI-X ", 2 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */ 188 { aac_rkt_init, "aacraid", "ADAPTEC ", "ASR-2130S PCI-X ", 1 }, /* ASR-2130S (Lancer) */ 189 { aac_rkt_init, "aacraid", "ADAPTEC ", "AAR-2820SA ", 1 }, /* AAR-2820SA (Intruder) */ 190 { aac_rkt_init, "aacraid", "ADAPTEC ", "AAR-2620SA ", 1 }, /* AAR-2620SA (Intruder) */ 191 { aac_rkt_init, "aacraid", "ADAPTEC ", "AAR-2420SA ", 1 }, /* AAR-2420SA (Intruder) */ 192 { aac_rkt_init, "aacraid", "ICP ", "ICP9024R0 ", 2 }, /* ICP9024R0 (Lancer) */ 193 { aac_rkt_init, "aacraid", "ICP ", "ICP9014R0 ", 1 }, /* ICP9014R0 (Lancer) */ 194 { aac_rkt_init, "aacraid", "ICP ", "ICP9047MA ", 1 }, /* ICP9047MA (Lancer) */ 195 { aac_rkt_init, "aacraid", "ICP ", "ICP9087MA ", 1 }, /* ICP9087MA (Lancer) */ 196 { aac_rkt_init, "aacraid", "ICP ", "ICP5085AU ", 1 }, /* ICP5085AU (Hurricane) */ 197 { aac_rx_init, "aacraid", "ICP ", "ICP9085LI ", 1 }, /* ICP9085LI (Marauder-X) */ 198 { aac_rx_init, "aacraid", "ICP ", "ICP5085BR ", 1 }, /* ICP5085BR (Marauder-E) */ 199 { aac_rkt_init, "aacraid", "ICP ", "ICP9067MA ", 1 }, /* ICP9067MA (Intruder-6) */ 200 { NULL , "aacraid", "ADAPTEC ", "Themisto ", 0, AAC_QUIRK_SLAVE }, /* Jupiter Platform */ 201 { aac_rkt_init, "aacraid", "ADAPTEC ", "Callisto ", 2, AAC_QUIRK_MASTER }, /* Jupiter Platform */ 202 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2020SA ", 1 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */ 203 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2025SA ", 1 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */ 204 { aac_rx_init, "aacraid", "ADAPTEC ", "AAR-2410SA SATA ", 1 }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */ 205 { aac_rx_init, "aacraid", "DELL ", "CERC SR2 ", 1 }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */ 206 { aac_rx_init, "aacraid", "ADAPTEC ", "AAR-2810SA SATA ", 1 }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */ 207 { aac_rx_init, "aacraid", "ADAPTEC ", "AAR-21610SA SATA", 1 }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */ 208 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2026ZCR ", 1 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */ 209 { aac_rx_init, "aacraid", "ADAPTEC ", "AAR-2610SA ", 1 }, /* SATA 6Ch (Bearcat) */ 210 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2240S ", 1 }, /* ASR-2240S (SabreExpress) */ 211 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4005SAS ", 1 }, /* ASR-4005SAS */ 212 { aac_rx_init, "ServeRAID","IBM ", "ServeRAID 8i ", 1 }, /* IBM 8i (AvonPark) */ 213 { aac_rkt_init, "ServeRAID","IBM ", "ServeRAID 8k-l8 ", 1 }, /* IBM 8k/8k-l8 (Aurora) */ 214 { aac_rkt_init, "ServeRAID","IBM ", "ServeRAID 8k-l4 ", 1 }, /* IBM 8k/8k-l4 (Aurora Lite) */ 215 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4000SAS ", 1 }, /* ASR-4000SAS (BlackBird & AvonPark) */ 216 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4800SAS ", 1 }, /* ASR-4800SAS (Marauder-X) */ 217 { aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4805SAS ", 1 }, /* ASR-4805SAS (Marauder-E) */ 218 { aac_rkt_init, "aacraid", "ADAPTEC ", "ASR-4810SAS ", 1 }, /* ASR-4810SAS (Hurricane) */ 219 220 { aac_rx_init, "percraid", "DELL ", "PERC 320/DC ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Perc 320/DC*/ 221 { aac_sa_init, "aacraid", "ADAPTEC ", "Adaptec 5400S ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/ 222 { aac_sa_init, "aacraid", "ADAPTEC ", "AAC-364 ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/ 223 { aac_sa_init, "percraid", "DELL ", "PERCRAID ", 4, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Dell PERC2/QC */ 224 { aac_sa_init, "hpnraid", "HP ", "NetRAID ", 4, AAC_QUIRK_34SG }, /* HP NetRAID-4M */ 225 226 { aac_rx_init, "aacraid", "DELL ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Dell Catchall */ 227 { aac_rx_init, "aacraid", "Legend ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Legend Catchall */ 228 { aac_rx_init, "aacraid", "ADAPTEC ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec Catch All */ 229 { aac_rkt_init, "aacraid", "ADAPTEC ", "RAID ", 2 } /* Adaptec Rocket Catch All */ 230 }; 231 232 /** 233 * aac_queuecommand - queue a SCSI command 234 * @cmd: SCSI command to queue 235 * @done: Function to call on command completion 236 * 237 * Queues a command for execution by the associated Host Adapter. 238 * 239 * TODO: unify with aac_scsi_cmd(). 240 */ 241 242 static int aac_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) 243 { 244 cmd->scsi_done = done; 245 return (aac_scsi_cmd(cmd) ? FAILED : 0); 246 } 247 248 /** 249 * aac_info - Returns the host adapter name 250 * @shost: Scsi host to report on 251 * 252 * Returns a static string describing the device in question 253 */ 254 255 static const char *aac_info(struct Scsi_Host *shost) 256 { 257 struct aac_dev *dev = (struct aac_dev *)shost->hostdata; 258 return aac_drivers[dev->cardtype].name; 259 } 260 261 /** 262 * aac_get_driver_ident 263 * @devtype: index into lookup table 264 * 265 * Returns a pointer to the entry in the driver lookup table. 266 */ 267 268 struct aac_driver_ident* aac_get_driver_ident(int devtype) 269 { 270 return &aac_drivers[devtype]; 271 } 272 273 /** 274 * aac_biosparm - return BIOS parameters for disk 275 * @sdev: The scsi device corresponding to the disk 276 * @bdev: the block device corresponding to the disk 277 * @capacity: the sector capacity of the disk 278 * @geom: geometry block to fill in 279 * 280 * Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk. 281 * The default disk geometry is 64 heads, 32 sectors, and the appropriate 282 * number of cylinders so as not to exceed drive capacity. In order for 283 * disks equal to or larger than 1 GB to be addressable by the BIOS 284 * without exceeding the BIOS limitation of 1024 cylinders, Extended 285 * Translation should be enabled. With Extended Translation enabled, 286 * drives between 1 GB inclusive and 2 GB exclusive are given a disk 287 * geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive 288 * are given a disk geometry of 255 heads and 63 sectors. However, if 289 * the BIOS detects that the Extended Translation setting does not match 290 * the geometry in the partition table, then the translation inferred 291 * from the partition table will be used by the BIOS, and a warning may 292 * be displayed. 293 */ 294 295 static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev, 296 sector_t capacity, int *geom) 297 { 298 struct diskparm *param = (struct diskparm *)geom; 299 unsigned char *buf; 300 301 dprintk((KERN_DEBUG "aac_biosparm.\n")); 302 303 /* 304 * Assuming extended translation is enabled - #REVISIT# 305 */ 306 if (capacity >= 2 * 1024 * 1024) { /* 1 GB in 512 byte sectors */ 307 if(capacity >= 4 * 1024 * 1024) { /* 2 GB in 512 byte sectors */ 308 param->heads = 255; 309 param->sectors = 63; 310 } else { 311 param->heads = 128; 312 param->sectors = 32; 313 } 314 } else { 315 param->heads = 64; 316 param->sectors = 32; 317 } 318 319 param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors); 320 321 /* 322 * Read the first 1024 bytes from the disk device, if the boot 323 * sector partition table is valid, search for a partition table 324 * entry whose end_head matches one of the standard geometry 325 * translations ( 64/32, 128/32, 255/63 ). 326 */ 327 buf = scsi_bios_ptable(bdev); 328 if(*(__le16 *)(buf + 0x40) == cpu_to_le16(0xaa55)) { 329 struct partition *first = (struct partition * )buf; 330 struct partition *entry = first; 331 int saved_cylinders = param->cylinders; 332 int num; 333 unsigned char end_head, end_sec; 334 335 for(num = 0; num < 4; num++) { 336 end_head = entry->end_head; 337 end_sec = entry->end_sector & 0x3f; 338 339 if(end_head == 63) { 340 param->heads = 64; 341 param->sectors = 32; 342 break; 343 } else if(end_head == 127) { 344 param->heads = 128; 345 param->sectors = 32; 346 break; 347 } else if(end_head == 254) { 348 param->heads = 255; 349 param->sectors = 63; 350 break; 351 } 352 entry++; 353 } 354 355 if (num == 4) { 356 end_head = first->end_head; 357 end_sec = first->end_sector & 0x3f; 358 } 359 360 param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors); 361 if (num < 4 && end_sec == param->sectors) { 362 if (param->cylinders != saved_cylinders) 363 dprintk((KERN_DEBUG "Adopting geometry: heads=%d, sectors=%d from partition table %d.\n", 364 param->heads, param->sectors, num)); 365 } else if (end_head > 0 || end_sec > 0) { 366 dprintk((KERN_DEBUG "Strange geometry: heads=%d, sectors=%d in partition table %d.\n", 367 end_head + 1, end_sec, num)); 368 dprintk((KERN_DEBUG "Using geometry: heads=%d, sectors=%d.\n", 369 param->heads, param->sectors)); 370 } 371 } 372 kfree(buf); 373 return 0; 374 } 375 376 /** 377 * aac_slave_configure - compute queue depths 378 * @sdev: SCSI device we are considering 379 * 380 * Selects queue depths for each target device based on the host adapter's 381 * total capacity and the queue depth supported by the target device. 382 * A queue depth of one automatically disables tagged queueing. 383 */ 384 385 static int aac_slave_configure(struct scsi_device *sdev) 386 { 387 struct Scsi_Host *host = sdev->host; 388 389 if (sdev->tagged_supported) 390 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, 128); 391 else 392 scsi_adjust_queue_depth(sdev, 0, 1); 393 394 if (!(((struct aac_dev *)host->hostdata)->adapter_info.options 395 & AAC_OPT_NEW_COMM)) 396 blk_queue_max_segment_size(sdev->request_queue, 65536); 397 398 return 0; 399 } 400 401 static int aac_ioctl(struct scsi_device *sdev, int cmd, void __user * arg) 402 { 403 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata; 404 return aac_do_ioctl(dev, cmd, arg); 405 } 406 407 /* 408 * aac_eh_reset - Reset command handling 409 * @scsi_cmd: SCSI command block causing the reset 410 * 411 */ 412 static int aac_eh_reset(struct scsi_cmnd* cmd) 413 { 414 struct scsi_device * dev = cmd->device; 415 struct Scsi_Host * host = dev->host; 416 struct scsi_cmnd * command; 417 int count; 418 struct aac_dev * aac; 419 unsigned long flags; 420 421 printk(KERN_ERR "%s: Host adapter reset request. SCSI hang ?\n", 422 AAC_DRIVERNAME); 423 424 425 spin_lock_irq(host->host_lock); 426 427 aac = (struct aac_dev *)host->hostdata; 428 if (aac_adapter_check_health(aac)) { 429 printk(KERN_ERR "%s: Host adapter appears dead\n", 430 AAC_DRIVERNAME); 431 spin_unlock_irq(host->host_lock); 432 return -ENODEV; 433 } 434 /* 435 * Wait for all commands to complete to this specific 436 * target (block maximum 60 seconds). 437 */ 438 for (count = 60; count; --count) { 439 int active = 0; 440 __shost_for_each_device(dev, host) { 441 spin_lock_irqsave(&dev->list_lock, flags); 442 list_for_each_entry(command, &dev->cmd_list, list) { 443 if (command->serial_number) { 444 active++; 445 break; 446 } 447 } 448 spin_unlock_irqrestore(&dev->list_lock, flags); 449 if (active) 450 break; 451 452 } 453 /* 454 * We can exit If all the commands are complete 455 */ 456 if (active == 0) 457 return SUCCESS; 458 spin_unlock_irq(host->host_lock); 459 ssleep(1); 460 spin_lock_irq(host->host_lock); 461 } 462 spin_unlock_irq(host->host_lock); 463 printk(KERN_ERR "%s: SCSI bus appears hung\n", AAC_DRIVERNAME); 464 return -ETIMEDOUT; 465 } 466 467 /** 468 * aac_cfg_open - open a configuration file 469 * @inode: inode being opened 470 * @file: file handle attached 471 * 472 * Called when the configuration device is opened. Does the needed 473 * set up on the handle and then returns 474 * 475 * Bugs: This needs extending to check a given adapter is present 476 * so we can support hot plugging, and to ref count adapters. 477 */ 478 479 static int aac_cfg_open(struct inode *inode, struct file *file) 480 { 481 struct aac_dev *aac; 482 unsigned minor_number = iminor(inode); 483 int err = -ENODEV; 484 485 list_for_each_entry(aac, &aac_devices, entry) { 486 if (aac->id == minor_number) { 487 file->private_data = aac; 488 err = 0; 489 break; 490 } 491 } 492 493 return err; 494 } 495 496 /** 497 * aac_cfg_ioctl - AAC configuration request 498 * @inode: inode of device 499 * @file: file handle 500 * @cmd: ioctl command code 501 * @arg: argument 502 * 503 * Handles a configuration ioctl. Currently this involves wrapping it 504 * up and feeding it into the nasty windowsalike glue layer. 505 * 506 * Bugs: Needs locking against parallel ioctls lower down 507 * Bugs: Needs to handle hot plugging 508 */ 509 510 static int aac_cfg_ioctl(struct inode *inode, struct file *file, 511 unsigned int cmd, unsigned long arg) 512 { 513 return aac_do_ioctl(file->private_data, cmd, (void __user *)arg); 514 } 515 516 #ifdef CONFIG_COMPAT 517 static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long arg) 518 { 519 long ret; 520 lock_kernel(); 521 switch (cmd) { 522 case FSACTL_MINIPORT_REV_CHECK: 523 case FSACTL_SENDFIB: 524 case FSACTL_OPEN_GET_ADAPTER_FIB: 525 case FSACTL_CLOSE_GET_ADAPTER_FIB: 526 case FSACTL_SEND_RAW_SRB: 527 case FSACTL_GET_PCI_INFO: 528 case FSACTL_QUERY_DISK: 529 case FSACTL_DELETE_DISK: 530 case FSACTL_FORCE_DELETE_DISK: 531 case FSACTL_GET_CONTAINERS: 532 case FSACTL_SEND_LARGE_FIB: 533 ret = aac_do_ioctl(dev, cmd, (void __user *)arg); 534 break; 535 536 case FSACTL_GET_NEXT_ADAPTER_FIB: { 537 struct fib_ioctl __user *f; 538 539 f = compat_alloc_user_space(sizeof(*f)); 540 ret = 0; 541 if (clear_user(f, sizeof(*f) != sizeof(*f))) 542 ret = -EFAULT; 543 if (copy_in_user(f, (void __user *)arg, sizeof(struct fib_ioctl) - sizeof(u32))) 544 ret = -EFAULT; 545 if (!ret) 546 ret = aac_do_ioctl(dev, cmd, (void __user *)arg); 547 break; 548 } 549 550 default: 551 ret = -ENOIOCTLCMD; 552 break; 553 } 554 unlock_kernel(); 555 return ret; 556 } 557 558 static int aac_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 559 { 560 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata; 561 return aac_compat_do_ioctl(dev, cmd, (unsigned long)arg); 562 } 563 564 static long aac_compat_cfg_ioctl(struct file *file, unsigned cmd, unsigned long arg) 565 { 566 return aac_compat_do_ioctl((struct aac_dev *)file->private_data, cmd, arg); 567 } 568 #endif 569 570 static ssize_t aac_show_model(struct class_device *class_dev, 571 char *buf) 572 { 573 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata; 574 int len; 575 576 len = snprintf(buf, PAGE_SIZE, "%s\n", 577 aac_drivers[dev->cardtype].model); 578 return len; 579 } 580 581 static ssize_t aac_show_vendor(struct class_device *class_dev, 582 char *buf) 583 { 584 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata; 585 int len; 586 587 len = snprintf(buf, PAGE_SIZE, "%s\n", 588 aac_drivers[dev->cardtype].vname); 589 return len; 590 } 591 592 static ssize_t aac_show_kernel_version(struct class_device *class_dev, 593 char *buf) 594 { 595 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata; 596 int len, tmp; 597 598 tmp = le32_to_cpu(dev->adapter_info.kernelrev); 599 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n", 600 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff, 601 le32_to_cpu(dev->adapter_info.kernelbuild)); 602 return len; 603 } 604 605 static ssize_t aac_show_monitor_version(struct class_device *class_dev, 606 char *buf) 607 { 608 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata; 609 int len, tmp; 610 611 tmp = le32_to_cpu(dev->adapter_info.monitorrev); 612 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n", 613 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff, 614 le32_to_cpu(dev->adapter_info.monitorbuild)); 615 return len; 616 } 617 618 static ssize_t aac_show_bios_version(struct class_device *class_dev, 619 char *buf) 620 { 621 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata; 622 int len, tmp; 623 624 tmp = le32_to_cpu(dev->adapter_info.biosrev); 625 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n", 626 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff, 627 le32_to_cpu(dev->adapter_info.biosbuild)); 628 return len; 629 } 630 631 static ssize_t aac_show_serial_number(struct class_device *class_dev, 632 char *buf) 633 { 634 struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata; 635 int len = 0; 636 637 if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0) 638 len = snprintf(buf, PAGE_SIZE, "%x\n", 639 le32_to_cpu(dev->adapter_info.serial[0])); 640 return len; 641 } 642 643 644 static struct class_device_attribute aac_model = { 645 .attr = { 646 .name = "model", 647 .mode = S_IRUGO, 648 }, 649 .show = aac_show_model, 650 }; 651 static struct class_device_attribute aac_vendor = { 652 .attr = { 653 .name = "vendor", 654 .mode = S_IRUGO, 655 }, 656 .show = aac_show_vendor, 657 }; 658 static struct class_device_attribute aac_kernel_version = { 659 .attr = { 660 .name = "hba_kernel_version", 661 .mode = S_IRUGO, 662 }, 663 .show = aac_show_kernel_version, 664 }; 665 static struct class_device_attribute aac_monitor_version = { 666 .attr = { 667 .name = "hba_monitor_version", 668 .mode = S_IRUGO, 669 }, 670 .show = aac_show_monitor_version, 671 }; 672 static struct class_device_attribute aac_bios_version = { 673 .attr = { 674 .name = "hba_bios_version", 675 .mode = S_IRUGO, 676 }, 677 .show = aac_show_bios_version, 678 }; 679 static struct class_device_attribute aac_serial_number = { 680 .attr = { 681 .name = "serial_number", 682 .mode = S_IRUGO, 683 }, 684 .show = aac_show_serial_number, 685 }; 686 687 static struct class_device_attribute *aac_attrs[] = { 688 &aac_model, 689 &aac_vendor, 690 &aac_kernel_version, 691 &aac_monitor_version, 692 &aac_bios_version, 693 &aac_serial_number, 694 NULL 695 }; 696 697 698 static struct file_operations aac_cfg_fops = { 699 .owner = THIS_MODULE, 700 .ioctl = aac_cfg_ioctl, 701 #ifdef CONFIG_COMPAT 702 .compat_ioctl = aac_compat_cfg_ioctl, 703 #endif 704 .open = aac_cfg_open, 705 }; 706 707 static struct scsi_host_template aac_driver_template = { 708 .module = THIS_MODULE, 709 .name = "AAC", 710 .proc_name = AAC_DRIVERNAME, 711 .info = aac_info, 712 .ioctl = aac_ioctl, 713 #ifdef CONFIG_COMPAT 714 .compat_ioctl = aac_compat_ioctl, 715 #endif 716 .queuecommand = aac_queuecommand, 717 .bios_param = aac_biosparm, 718 .shost_attrs = aac_attrs, 719 .slave_configure = aac_slave_configure, 720 .eh_host_reset_handler = aac_eh_reset, 721 .can_queue = AAC_NUM_IO_FIB, 722 .this_id = MAXIMUM_NUM_CONTAINERS, 723 .sg_tablesize = 16, 724 .max_sectors = 128, 725 #if (AAC_NUM_IO_FIB > 256) 726 .cmd_per_lun = 256, 727 #else 728 .cmd_per_lun = AAC_NUM_IO_FIB, 729 #endif 730 .use_clustering = ENABLE_CLUSTERING, 731 }; 732 733 734 static int __devinit aac_probe_one(struct pci_dev *pdev, 735 const struct pci_device_id *id) 736 { 737 unsigned index = id->driver_data; 738 struct Scsi_Host *shost; 739 struct aac_dev *aac; 740 struct list_head *insert = &aac_devices; 741 int error = -ENODEV; 742 int unique_id = 0; 743 744 list_for_each_entry(aac, &aac_devices, entry) { 745 if (aac->id > unique_id) 746 break; 747 insert = &aac->entry; 748 unique_id++; 749 } 750 751 if (pci_enable_device(pdev)) 752 goto out; 753 754 if (pci_set_dma_mask(pdev, 0xFFFFFFFFULL) || 755 pci_set_consistent_dma_mask(pdev, 0xFFFFFFFFULL)) 756 goto out; 757 /* 758 * If the quirk31 bit is set, the adapter needs adapter 759 * to driver communication memory to be allocated below 2gig 760 */ 761 if (aac_drivers[index].quirks & AAC_QUIRK_31BIT) 762 if (pci_set_dma_mask(pdev, 0x7FFFFFFFULL) || 763 pci_set_consistent_dma_mask(pdev, 0x7FFFFFFFULL)) 764 goto out; 765 766 pci_set_master(pdev); 767 768 shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev)); 769 if (!shost) 770 goto out_disable_pdev; 771 772 shost->irq = pdev->irq; 773 shost->base = pci_resource_start(pdev, 0); 774 shost->unique_id = unique_id; 775 776 aac = (struct aac_dev *)shost->hostdata; 777 aac->scsi_host_ptr = shost; 778 aac->pdev = pdev; 779 aac->name = aac_driver_template.name; 780 aac->id = shost->unique_id; 781 aac->cardtype = index; 782 INIT_LIST_HEAD(&aac->entry); 783 784 aac->fibs = kmalloc(sizeof(struct fib) * (shost->can_queue + AAC_NUM_MGT_FIB), GFP_KERNEL); 785 if (!aac->fibs) 786 goto out_free_host; 787 spin_lock_init(&aac->fib_lock); 788 789 if ((*aac_drivers[index].init)(aac)) 790 goto out_free_fibs; 791 792 /* 793 * If we had set a smaller DMA mask earlier, set it to 4gig 794 * now since the adapter can dma data to at least a 4gig 795 * address space. 796 */ 797 if (aac_drivers[index].quirks & AAC_QUIRK_31BIT) 798 if (pci_set_dma_mask(pdev, 0xFFFFFFFFULL)) 799 goto out_free_fibs; 800 801 aac->maximum_num_channels = aac_drivers[index].channels; 802 aac_get_adapter_info(aac); 803 804 /* 805 * Lets override negotiations and drop the maximum SG limit to 34 806 */ 807 if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) && 808 (aac->scsi_host_ptr->sg_tablesize > 34)) { 809 aac->scsi_host_ptr->sg_tablesize = 34; 810 aac->scsi_host_ptr->max_sectors 811 = (aac->scsi_host_ptr->sg_tablesize * 8) + 112; 812 } 813 814 /* 815 * Firware printf works only with older firmware. 816 */ 817 if (aac_drivers[index].quirks & AAC_QUIRK_34SG) 818 aac->printf_enabled = 1; 819 else 820 aac->printf_enabled = 0; 821 822 /* 823 * max channel will be the physical channels plus 1 virtual channel 824 * all containers are on the virtual channel 0 825 * physical channels are address by their actual physical number+1 826 */ 827 if (aac->nondasd_support == 1) 828 shost->max_channel = aac->maximum_num_channels + 1; 829 else 830 shost->max_channel = 1; 831 832 aac_get_config_status(aac); 833 aac_get_containers(aac); 834 list_add(&aac->entry, insert); 835 836 shost->max_id = aac->maximum_num_containers; 837 if (shost->max_id < aac->maximum_num_physicals) 838 shost->max_id = aac->maximum_num_physicals; 839 if (shost->max_id < MAXIMUM_NUM_CONTAINERS) 840 shost->max_id = MAXIMUM_NUM_CONTAINERS; 841 else 842 shost->this_id = shost->max_id; 843 844 /* 845 * dmb - we may need to move the setting of these parms somewhere else once 846 * we get a fib that can report the actual numbers 847 */ 848 shost->max_lun = AAC_MAX_LUN; 849 850 pci_set_drvdata(pdev, shost); 851 852 error = scsi_add_host(shost, &pdev->dev); 853 if (error) 854 goto out_deinit; 855 scsi_scan_host(shost); 856 857 return 0; 858 859 out_deinit: 860 kill_proc(aac->thread_pid, SIGKILL, 0); 861 wait_for_completion(&aac->aif_completion); 862 863 aac_send_shutdown(aac); 864 aac_adapter_disable_int(aac); 865 fib_map_free(aac); 866 pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr, aac->comm_phys); 867 kfree(aac->queues); 868 free_irq(pdev->irq, aac); 869 iounmap(aac->regs.sa); 870 out_free_fibs: 871 kfree(aac->fibs); 872 kfree(aac->fsa_dev); 873 out_free_host: 874 scsi_host_put(shost); 875 out_disable_pdev: 876 pci_disable_device(pdev); 877 out: 878 return error; 879 } 880 881 static void aac_shutdown(struct pci_dev *dev) 882 { 883 struct Scsi_Host *shost = pci_get_drvdata(dev); 884 struct aac_dev *aac = (struct aac_dev *)shost->hostdata; 885 aac_send_shutdown(aac); 886 } 887 888 static void __devexit aac_remove_one(struct pci_dev *pdev) 889 { 890 struct Scsi_Host *shost = pci_get_drvdata(pdev); 891 struct aac_dev *aac = (struct aac_dev *)shost->hostdata; 892 893 scsi_remove_host(shost); 894 895 kill_proc(aac->thread_pid, SIGKILL, 0); 896 wait_for_completion(&aac->aif_completion); 897 898 aac_send_shutdown(aac); 899 aac_adapter_disable_int(aac); 900 fib_map_free(aac); 901 pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr, 902 aac->comm_phys); 903 kfree(aac->queues); 904 905 free_irq(pdev->irq, aac); 906 iounmap(aac->regs.sa); 907 908 kfree(aac->fibs); 909 910 list_del(&aac->entry); 911 scsi_host_put(shost); 912 pci_disable_device(pdev); 913 } 914 915 static struct pci_driver aac_pci_driver = { 916 .name = AAC_DRIVERNAME, 917 .id_table = aac_pci_tbl, 918 .probe = aac_probe_one, 919 .remove = __devexit_p(aac_remove_one), 920 .shutdown = aac_shutdown, 921 }; 922 923 static int __init aac_init(void) 924 { 925 int error; 926 927 printk(KERN_INFO "Adaptec %s driver (%s)\n", 928 AAC_DRIVERNAME, aac_driver_version); 929 930 error = pci_module_init(&aac_pci_driver); 931 if (error) 932 return error; 933 934 aac_cfg_major = register_chrdev( 0, "aac", &aac_cfg_fops); 935 if (aac_cfg_major < 0) { 936 printk(KERN_WARNING 937 "aacraid: unable to register \"aac\" device.\n"); 938 } 939 940 return 0; 941 } 942 943 static void __exit aac_exit(void) 944 { 945 unregister_chrdev(aac_cfg_major, "aac"); 946 pci_unregister_driver(&aac_pci_driver); 947 } 948 949 module_init(aac_init); 950 module_exit(aac_exit); 951