Version:  2.0.40 2.2.26 2.4.37 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10

Linux/drivers/scsi/aacraid/linit.c

  1 /*
  2  *      Adaptec AAC series RAID controller driver
  3  *      (c) Copyright 2001 Red Hat Inc.
  4  *
  5  * based on the old aacraid driver that is..
  6  * Adaptec aacraid device driver for Linux.
  7  *
  8  * Copyright (c) 2000-2010 Adaptec, Inc.
  9  *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
 10  *
 11  * This program is free software; you can redistribute it and/or modify
 12  * it under the terms of the GNU General Public License as published by
 13  * the Free Software Foundation; either version 2, or (at your option)
 14  * any later version.
 15  *
 16  * This program is distributed in the hope that it will be useful,
 17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 19  * GNU General Public License for more details.
 20  *
 21  * You should have received a copy of the GNU General Public License
 22  * along with this program; see the file COPYING.  If not, write to
 23  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 24  *
 25  * Module Name:
 26  *   linit.c
 27  *
 28  * Abstract: Linux Driver entry module for Adaptec RAID Array Controller
 29  */
 30 
 31 
 32 #include <linux/compat.h>
 33 #include <linux/blkdev.h>
 34 #include <linux/completion.h>
 35 #include <linux/init.h>
 36 #include <linux/interrupt.h>
 37 #include <linux/kernel.h>
 38 #include <linux/module.h>
 39 #include <linux/moduleparam.h>
 40 #include <linux/pci.h>
 41 #include <linux/aer.h>
 42 #include <linux/pci-aspm.h>
 43 #include <linux/slab.h>
 44 #include <linux/mutex.h>
 45 #include <linux/spinlock.h>
 46 #include <linux/syscalls.h>
 47 #include <linux/delay.h>
 48 #include <linux/kthread.h>
 49 
 50 #include <scsi/scsi.h>
 51 #include <scsi/scsi_cmnd.h>
 52 #include <scsi/scsi_device.h>
 53 #include <scsi/scsi_host.h>
 54 #include <scsi/scsi_tcq.h>
 55 #include <scsi/scsicam.h>
 56 #include <scsi/scsi_eh.h>
 57 
 58 #include "aacraid.h"
 59 
 60 #define AAC_DRIVER_VERSION              "1.2-1"
 61 #ifndef AAC_DRIVER_BRANCH
 62 #define AAC_DRIVER_BRANCH               ""
 63 #endif
 64 #define AAC_DRIVERNAME                  "aacraid"
 65 
 66 #ifdef AAC_DRIVER_BUILD
 67 #define _str(x) #x
 68 #define str(x) _str(x)
 69 #define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION "[" str(AAC_DRIVER_BUILD) "]" AAC_DRIVER_BRANCH
 70 #else
 71 #define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION AAC_DRIVER_BRANCH
 72 #endif
 73 
 74 MODULE_AUTHOR("Red Hat Inc and Adaptec");
 75 MODULE_DESCRIPTION("Dell PERC2, 2/Si, 3/Si, 3/Di, "
 76                    "Adaptec Advanced Raid Products, "
 77                    "HP NetRAID-4M, IBM ServeRAID & ICP SCSI driver");
 78 MODULE_LICENSE("GPL");
 79 MODULE_VERSION(AAC_DRIVER_FULL_VERSION);
 80 
 81 static DEFINE_MUTEX(aac_mutex);
 82 static LIST_HEAD(aac_devices);
 83 static int aac_cfg_major = AAC_CHARDEV_UNREGISTERED;
 84 char aac_driver_version[] = AAC_DRIVER_FULL_VERSION;
 85 
 86 /*
 87  * Because of the way Linux names scsi devices, the order in this table has
 88  * become important.  Check for on-board Raid first, add-in cards second.
 89  *
 90  * Note: The last field is used to index into aac_drivers below.
 91  */
 92 static const struct pci_device_id aac_pci_tbl[] = {
 93         { 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */
 94         { 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */
 95         { 0x1028, 0x0003, 0x1028, 0x0003, 0, 0, 2 }, /* PERC 3/Si (SlimFast/PERC3Si */
 96         { 0x1028, 0x0004, 0x1028, 0x00d0, 0, 0, 3 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
 97         { 0x1028, 0x0002, 0x1028, 0x00d1, 0, 0, 4 }, /* PERC 3/Di (Viper/PERC3DiV) */
 98         { 0x1028, 0x0002, 0x1028, 0x00d9, 0, 0, 5 }, /* PERC 3/Di (Lexus/PERC3DiL) */
 99         { 0x1028, 0x000a, 0x1028, 0x0106, 0, 0, 6 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
100         { 0x1028, 0x000a, 0x1028, 0x011b, 0, 0, 7 }, /* PERC 3/Di (Dagger/PERC3DiD) */
101         { 0x1028, 0x000a, 0x1028, 0x0121, 0, 0, 8 }, /* PERC 3/Di (Boxster/PERC3DiB) */
102         { 0x9005, 0x0283, 0x9005, 0x0283, 0, 0, 9 }, /* catapult */
103         { 0x9005, 0x0284, 0x9005, 0x0284, 0, 0, 10 }, /* tomcat */
104         { 0x9005, 0x0285, 0x9005, 0x0286, 0, 0, 11 }, /* Adaptec 2120S (Crusader) */
105         { 0x9005, 0x0285, 0x9005, 0x0285, 0, 0, 12 }, /* Adaptec 2200S (Vulcan) */
106         { 0x9005, 0x0285, 0x9005, 0x0287, 0, 0, 13 }, /* Adaptec 2200S (Vulcan-2m) */
107         { 0x9005, 0x0285, 0x17aa, 0x0286, 0, 0, 14 }, /* Legend S220 (Legend Crusader) */
108         { 0x9005, 0x0285, 0x17aa, 0x0287, 0, 0, 15 }, /* Legend S230 (Legend Vulcan) */
109 
110         { 0x9005, 0x0285, 0x9005, 0x0288, 0, 0, 16 }, /* Adaptec 3230S (Harrier) */
111         { 0x9005, 0x0285, 0x9005, 0x0289, 0, 0, 17 }, /* Adaptec 3240S (Tornado) */
112         { 0x9005, 0x0285, 0x9005, 0x028a, 0, 0, 18 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
113         { 0x9005, 0x0285, 0x9005, 0x028b, 0, 0, 19 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
114         { 0x9005, 0x0286, 0x9005, 0x028c, 0, 0, 20 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
115         { 0x9005, 0x0286, 0x9005, 0x028d, 0, 0, 21 }, /* ASR-2130S (Lancer) */
116         { 0x9005, 0x0286, 0x9005, 0x029b, 0, 0, 22 }, /* AAR-2820SA (Intruder) */
117         { 0x9005, 0x0286, 0x9005, 0x029c, 0, 0, 23 }, /* AAR-2620SA (Intruder) */
118         { 0x9005, 0x0286, 0x9005, 0x029d, 0, 0, 24 }, /* AAR-2420SA (Intruder) */
119         { 0x9005, 0x0286, 0x9005, 0x029e, 0, 0, 25 }, /* ICP9024RO (Lancer) */
120         { 0x9005, 0x0286, 0x9005, 0x029f, 0, 0, 26 }, /* ICP9014RO (Lancer) */
121         { 0x9005, 0x0286, 0x9005, 0x02a0, 0, 0, 27 }, /* ICP9047MA (Lancer) */
122         { 0x9005, 0x0286, 0x9005, 0x02a1, 0, 0, 28 }, /* ICP9087MA (Lancer) */
123         { 0x9005, 0x0286, 0x9005, 0x02a3, 0, 0, 29 }, /* ICP5445AU (Hurricane44) */
124         { 0x9005, 0x0285, 0x9005, 0x02a4, 0, 0, 30 }, /* ICP9085LI (Marauder-X) */
125         { 0x9005, 0x0285, 0x9005, 0x02a5, 0, 0, 31 }, /* ICP5085BR (Marauder-E) */
126         { 0x9005, 0x0286, 0x9005, 0x02a6, 0, 0, 32 }, /* ICP9067MA (Intruder-6) */
127         { 0x9005, 0x0287, 0x9005, 0x0800, 0, 0, 33 }, /* Themisto Jupiter Platform */
128         { 0x9005, 0x0200, 0x9005, 0x0200, 0, 0, 33 }, /* Themisto Jupiter Platform */
129         { 0x9005, 0x0286, 0x9005, 0x0800, 0, 0, 34 }, /* Callisto Jupiter Platform */
130         { 0x9005, 0x0285, 0x9005, 0x028e, 0, 0, 35 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
131         { 0x9005, 0x0285, 0x9005, 0x028f, 0, 0, 36 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
132         { 0x9005, 0x0285, 0x9005, 0x0290, 0, 0, 37 }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
133         { 0x9005, 0x0285, 0x1028, 0x0291, 0, 0, 38 }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
134         { 0x9005, 0x0285, 0x9005, 0x0292, 0, 0, 39 }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
135         { 0x9005, 0x0285, 0x9005, 0x0293, 0, 0, 40 }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
136         { 0x9005, 0x0285, 0x9005, 0x0294, 0, 0, 41 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
137         { 0x9005, 0x0285, 0x103C, 0x3227, 0, 0, 42 }, /* AAR-2610SA PCI SATA 6ch */
138         { 0x9005, 0x0285, 0x9005, 0x0296, 0, 0, 43 }, /* ASR-2240S (SabreExpress) */
139         { 0x9005, 0x0285, 0x9005, 0x0297, 0, 0, 44 }, /* ASR-4005 */
140         { 0x9005, 0x0285, 0x1014, 0x02F2, 0, 0, 45 }, /* IBM 8i (AvonPark) */
141         { 0x9005, 0x0285, 0x1014, 0x0312, 0, 0, 45 }, /* IBM 8i (AvonPark Lite) */
142         { 0x9005, 0x0286, 0x1014, 0x9580, 0, 0, 46 }, /* IBM 8k/8k-l8 (Aurora) */
143         { 0x9005, 0x0286, 0x1014, 0x9540, 0, 0, 47 }, /* IBM 8k/8k-l4 (Aurora Lite) */
144         { 0x9005, 0x0285, 0x9005, 0x0298, 0, 0, 48 }, /* ASR-4000 (BlackBird) */
145         { 0x9005, 0x0285, 0x9005, 0x0299, 0, 0, 49 }, /* ASR-4800SAS (Marauder-X) */
146         { 0x9005, 0x0285, 0x9005, 0x029a, 0, 0, 50 }, /* ASR-4805SAS (Marauder-E) */
147         { 0x9005, 0x0286, 0x9005, 0x02a2, 0, 0, 51 }, /* ASR-3800 (Hurricane44) */
148 
149         { 0x9005, 0x0285, 0x1028, 0x0287, 0, 0, 52 }, /* Perc 320/DC*/
150         { 0x1011, 0x0046, 0x9005, 0x0365, 0, 0, 53 }, /* Adaptec 5400S (Mustang)*/
151         { 0x1011, 0x0046, 0x9005, 0x0364, 0, 0, 54 }, /* Adaptec 5400S (Mustang)*/
152         { 0x1011, 0x0046, 0x9005, 0x1364, 0, 0, 55 }, /* Dell PERC2/QC */
153         { 0x1011, 0x0046, 0x103c, 0x10c2, 0, 0, 56 }, /* HP NetRAID-4M */
154 
155         { 0x9005, 0x0285, 0x1028, PCI_ANY_ID, 0, 0, 57 }, /* Dell Catchall */
156         { 0x9005, 0x0285, 0x17aa, PCI_ANY_ID, 0, 0, 58 }, /* Legend Catchall */
157         { 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */
158         { 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */
159         { 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */
160         { 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Series 6 (Tupelo) */
161         { 0x9005, 0x028c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 63 }, /* Adaptec PMC Series 7 (Denali) */
162         { 0x9005, 0x028d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 64 }, /* Adaptec PMC Series 8 */
163         { 0,}
164 };
165 MODULE_DEVICE_TABLE(pci, aac_pci_tbl);
166 
167 /*
168  * dmb - For now we add the number of channels to this structure.
169  * In the future we should add a fib that reports the number of channels
170  * for the card.  At that time we can remove the channels from here
171  */
172 static struct aac_driver_ident aac_drivers[] = {
173         { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 2/Si (Iguana/PERC2Si) */
174         { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Opal/PERC3Di) */
175         { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Si (SlimFast/PERC3Si */
176         { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
177         { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Viper/PERC3DiV) */
178         { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Lexus/PERC3DiL) */
179         { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
180         { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Dagger/PERC3DiD) */
181         { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Boxster/PERC3DiB) */
182         { aac_rx_init, "aacraid",  "ADAPTEC ", "catapult        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* catapult */
183         { aac_rx_init, "aacraid",  "ADAPTEC ", "tomcat          ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* tomcat */
184         { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2120S   ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG },                     /* Adaptec 2120S (Crusader) */
185         { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG },                     /* Adaptec 2200S (Vulcan) */
186         { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2200S (Vulcan-2m) */
187         { aac_rx_init, "aacraid",  "Legend  ", "Legend S220     ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S220 (Legend Crusader) */
188         { aac_rx_init, "aacraid",  "Legend  ", "Legend S230     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S230 (Legend Vulcan) */
189 
190         { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 3230S   ", 2 }, /* Adaptec 3230S (Harrier) */
191         { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 3240S   ", 2 }, /* Adaptec 3240S (Tornado) */
192         { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2020ZCR     ", 2 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
193         { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2025ZCR     ", 2 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
194         { aac_rkt_init, "aacraid",  "ADAPTEC ", "ASR-2230S PCI-X ", 2 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
195         { aac_rkt_init, "aacraid",  "ADAPTEC ", "ASR-2130S PCI-X ", 1 }, /* ASR-2130S (Lancer) */
196         { aac_rkt_init, "aacraid",  "ADAPTEC ", "AAR-2820SA      ", 1 }, /* AAR-2820SA (Intruder) */
197         { aac_rkt_init, "aacraid",  "ADAPTEC ", "AAR-2620SA      ", 1 }, /* AAR-2620SA (Intruder) */
198         { aac_rkt_init, "aacraid",  "ADAPTEC ", "AAR-2420SA      ", 1 }, /* AAR-2420SA (Intruder) */
199         { aac_rkt_init, "aacraid",  "ICP     ", "ICP9024RO       ", 2 }, /* ICP9024RO (Lancer) */
200         { aac_rkt_init, "aacraid",  "ICP     ", "ICP9014RO       ", 1 }, /* ICP9014RO (Lancer) */
201         { aac_rkt_init, "aacraid",  "ICP     ", "ICP9047MA       ", 1 }, /* ICP9047MA (Lancer) */
202         { aac_rkt_init, "aacraid",  "ICP     ", "ICP9087MA       ", 1 }, /* ICP9087MA (Lancer) */
203         { aac_rkt_init, "aacraid",  "ICP     ", "ICP5445AU       ", 1 }, /* ICP5445AU (Hurricane44) */
204         { aac_rx_init, "aacraid",  "ICP     ", "ICP9085LI       ", 1 }, /* ICP9085LI (Marauder-X) */
205         { aac_rx_init, "aacraid",  "ICP     ", "ICP5085BR       ", 1 }, /* ICP5085BR (Marauder-E) */
206         { aac_rkt_init, "aacraid",  "ICP     ", "ICP9067MA       ", 1 }, /* ICP9067MA (Intruder-6) */
207         { NULL        , "aacraid",  "ADAPTEC ", "Themisto        ", 0, AAC_QUIRK_SLAVE }, /* Jupiter Platform */
208         { aac_rkt_init, "aacraid",  "ADAPTEC ", "Callisto        ", 2, AAC_QUIRK_MASTER }, /* Jupiter Platform */
209         { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2020SA       ", 1 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
210         { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2025SA       ", 1 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
211         { aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2410SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
212         { aac_rx_init, "aacraid",  "DELL    ", "CERC SR2        ", 1, AAC_QUIRK_17SG }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
213         { aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2810SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
214         { aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-21610SA SATA", 1, AAC_QUIRK_17SG }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
215         { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2026ZCR     ", 1 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
216         { aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2610SA      ", 1 }, /* SATA 6Ch (Bearcat) */
217         { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2240S       ", 1 }, /* ASR-2240S (SabreExpress) */
218         { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4005        ", 1 }, /* ASR-4005 */
219         { aac_rx_init, "ServeRAID","IBM     ", "ServeRAID 8i    ", 1 }, /* IBM 8i (AvonPark) */
220         { aac_rkt_init, "ServeRAID","IBM     ", "ServeRAID 8k-l8 ", 1 }, /* IBM 8k/8k-l8 (Aurora) */
221         { aac_rkt_init, "ServeRAID","IBM     ", "ServeRAID 8k-l4 ", 1 }, /* IBM 8k/8k-l4 (Aurora Lite) */
222         { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4000        ", 1 }, /* ASR-4000 (BlackBird & AvonPark) */
223         { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4800SAS     ", 1 }, /* ASR-4800SAS (Marauder-X) */
224         { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4805SAS     ", 1 }, /* ASR-4805SAS (Marauder-E) */
225         { aac_rkt_init, "aacraid",  "ADAPTEC ", "ASR-3800        ", 1 }, /* ASR-3800 (Hurricane44) */
226 
227         { aac_rx_init, "percraid", "DELL    ", "PERC 320/DC     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Perc 320/DC*/
228         { aac_sa_init, "aacraid",  "ADAPTEC ", "Adaptec 5400S   ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
229         { aac_sa_init, "aacraid",  "ADAPTEC ", "AAC-364         ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
230         { aac_sa_init, "percraid", "DELL    ", "PERCRAID        ", 4, AAC_QUIRK_34SG }, /* Dell PERC2/QC */
231         { aac_sa_init, "hpnraid",  "HP      ", "NetRAID         ", 4, AAC_QUIRK_34SG }, /* HP NetRAID-4M */
232 
233         { aac_rx_init, "aacraid",  "DELL    ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Dell Catchall */
234         { aac_rx_init, "aacraid",  "Legend  ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend Catchall */
235         { aac_rx_init, "aacraid",  "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Catch All */
236         { aac_rkt_init, "aacraid", "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Rocket Catch All */
237         { aac_nark_init, "aacraid", "ADAPTEC ", "RAID           ", 2 }, /* Adaptec NEMER/ARK Catch All */
238         { aac_src_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 6 (Tupelo) */
239         { aac_srcv_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 7 (Denali) */
240         { aac_srcv_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 8 */
241 };
242 
243 /**
244  *      aac_queuecommand        -       queue a SCSI command
245  *      @cmd:           SCSI command to queue
246  *      @done:          Function to call on command completion
247  *
248  *      Queues a command for execution by the associated Host Adapter.
249  *
250  *      TODO: unify with aac_scsi_cmd().
251  */
252 
253 static int aac_queuecommand(struct Scsi_Host *shost,
254                             struct scsi_cmnd *cmd)
255 {
256         int r = 0;
257         cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
258         r = (aac_scsi_cmd(cmd) ? FAILED : 0);
259         return r;
260 }
261 
262 /**
263  *      aac_info                -       Returns the host adapter name
264  *      @shost:         Scsi host to report on
265  *
266  *      Returns a static string describing the device in question
267  */
268 
269 static const char *aac_info(struct Scsi_Host *shost)
270 {
271         struct aac_dev *dev = (struct aac_dev *)shost->hostdata;
272         return aac_drivers[dev->cardtype].name;
273 }
274 
275 /**
276  *      aac_get_driver_ident
277  *      @devtype: index into lookup table
278  *
279  *      Returns a pointer to the entry in the driver lookup table.
280  */
281 
282 struct aac_driver_ident* aac_get_driver_ident(int devtype)
283 {
284         return &aac_drivers[devtype];
285 }
286 
287 /**
288  *      aac_biosparm    -       return BIOS parameters for disk
289  *      @sdev: The scsi device corresponding to the disk
290  *      @bdev: the block device corresponding to the disk
291  *      @capacity: the sector capacity of the disk
292  *      @geom: geometry block to fill in
293  *
294  *      Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk.
295  *      The default disk geometry is 64 heads, 32 sectors, and the appropriate
296  *      number of cylinders so as not to exceed drive capacity.  In order for
297  *      disks equal to or larger than 1 GB to be addressable by the BIOS
298  *      without exceeding the BIOS limitation of 1024 cylinders, Extended
299  *      Translation should be enabled.   With Extended Translation enabled,
300  *      drives between 1 GB inclusive and 2 GB exclusive are given a disk
301  *      geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive
302  *      are given a disk geometry of 255 heads and 63 sectors.  However, if
303  *      the BIOS detects that the Extended Translation setting does not match
304  *      the geometry in the partition table, then the translation inferred
305  *      from the partition table will be used by the BIOS, and a warning may
306  *      be displayed.
307  */
308 
309 static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
310                         sector_t capacity, int *geom)
311 {
312         struct diskparm *param = (struct diskparm *)geom;
313         unsigned char *buf;
314 
315         dprintk((KERN_DEBUG "aac_biosparm.\n"));
316 
317         /*
318          *      Assuming extended translation is enabled - #REVISIT#
319          */
320         if (capacity >= 2 * 1024 * 1024) { /* 1 GB in 512 byte sectors */
321                 if(capacity >= 4 * 1024 * 1024) { /* 2 GB in 512 byte sectors */
322                         param->heads = 255;
323                         param->sectors = 63;
324                 } else {
325                         param->heads = 128;
326                         param->sectors = 32;
327                 }
328         } else {
329                 param->heads = 64;
330                 param->sectors = 32;
331         }
332 
333         param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
334 
335         /*
336          *      Read the first 1024 bytes from the disk device, if the boot
337          *      sector partition table is valid, search for a partition table
338          *      entry whose end_head matches one of the standard geometry
339          *      translations ( 64/32, 128/32, 255/63 ).
340          */
341         buf = scsi_bios_ptable(bdev);
342         if (!buf)
343                 return 0;
344         if(*(__le16 *)(buf + 0x40) == cpu_to_le16(0xaa55)) {
345                 struct partition *first = (struct partition * )buf;
346                 struct partition *entry = first;
347                 int saved_cylinders = param->cylinders;
348                 int num;
349                 unsigned char end_head, end_sec;
350 
351                 for(num = 0; num < 4; num++) {
352                         end_head = entry->end_head;
353                         end_sec = entry->end_sector & 0x3f;
354 
355                         if(end_head == 63) {
356                                 param->heads = 64;
357                                 param->sectors = 32;
358                                 break;
359                         } else if(end_head == 127) {
360                                 param->heads = 128;
361                                 param->sectors = 32;
362                                 break;
363                         } else if(end_head == 254) {
364                                 param->heads = 255;
365                                 param->sectors = 63;
366                                 break;
367                         }
368                         entry++;
369                 }
370 
371                 if (num == 4) {
372                         end_head = first->end_head;
373                         end_sec = first->end_sector & 0x3f;
374                 }
375 
376                 param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
377                 if (num < 4 && end_sec == param->sectors) {
378                         if (param->cylinders != saved_cylinders)
379                                 dprintk((KERN_DEBUG "Adopting geometry: heads=%d, sectors=%d from partition table %d.\n",
380                                         param->heads, param->sectors, num));
381                 } else if (end_head > 0 || end_sec > 0) {
382                         dprintk((KERN_DEBUG "Strange geometry: heads=%d, sectors=%d in partition table %d.\n",
383                                 end_head + 1, end_sec, num));
384                         dprintk((KERN_DEBUG "Using geometry: heads=%d, sectors=%d.\n",
385                                         param->heads, param->sectors));
386                 }
387         }
388         kfree(buf);
389         return 0;
390 }
391 
392 /**
393  *      aac_slave_configure             -       compute queue depths
394  *      @sdev:  SCSI device we are considering
395  *
396  *      Selects queue depths for each target device based on the host adapter's
397  *      total capacity and the queue depth supported by the target device.
398  *      A queue depth of one automatically disables tagged queueing.
399  */
400 
401 static int aac_slave_configure(struct scsi_device *sdev)
402 {
403         struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
404         if (aac->jbod && (sdev->type == TYPE_DISK))
405                 sdev->removable = 1;
406         if ((sdev->type == TYPE_DISK) &&
407                         (sdev_channel(sdev) != CONTAINER_CHANNEL) &&
408                         (!aac->jbod || sdev->inq_periph_qual) &&
409                         (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))) {
410                 if (expose_physicals == 0)
411                         return -ENXIO;
412                 if (expose_physicals < 0)
413                         sdev->no_uld_attach = 1;
414         }
415         if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
416                         (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2)) &&
417                         !sdev->no_uld_attach) {
418                 struct scsi_device * dev;
419                 struct Scsi_Host *host = sdev->host;
420                 unsigned num_lsu = 0;
421                 unsigned num_one = 0;
422                 unsigned depth;
423                 unsigned cid;
424 
425                 /*
426                  * Firmware has an individual device recovery time typically
427                  * of 35 seconds, give us a margin.
428                  */
429                 if (sdev->request_queue->rq_timeout < (45 * HZ))
430                         blk_queue_rq_timeout(sdev->request_queue, 45*HZ);
431                 for (cid = 0; cid < aac->maximum_num_containers; ++cid)
432                         if (aac->fsa_dev[cid].valid)
433                                 ++num_lsu;
434                 __shost_for_each_device(dev, host) {
435                         if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
436                                         (!aac->raid_scsi_mode ||
437                                                 (sdev_channel(sdev) != 2)) &&
438                                         !dev->no_uld_attach) {
439                                 if ((sdev_channel(dev) != CONTAINER_CHANNEL)
440                                  || !aac->fsa_dev[sdev_id(dev)].valid)
441                                         ++num_lsu;
442                         } else
443                                 ++num_one;
444                 }
445                 if (num_lsu == 0)
446                         ++num_lsu;
447                 depth = (host->can_queue - num_one) / num_lsu;
448                 if (depth > 256)
449                         depth = 256;
450                 else if (depth < 2)
451                         depth = 2;
452                 scsi_change_queue_depth(sdev, depth);
453         } else {
454                 scsi_change_queue_depth(sdev, 1);
455 
456                 sdev->tagged_supported = 1;
457         }
458 
459         return 0;
460 }
461 
462 /**
463  *      aac_change_queue_depth          -       alter queue depths
464  *      @sdev:  SCSI device we are considering
465  *      @depth: desired queue depth
466  *
467  *      Alters queue depths for target device based on the host adapter's
468  *      total capacity and the queue depth supported by the target device.
469  */
470 
471 static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
472 {
473         if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
474             (sdev_channel(sdev) == CONTAINER_CHANNEL)) {
475                 struct scsi_device * dev;
476                 struct Scsi_Host *host = sdev->host;
477                 unsigned num = 0;
478 
479                 __shost_for_each_device(dev, host) {
480                         if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
481                             (sdev_channel(dev) == CONTAINER_CHANNEL))
482                                 ++num;
483                         ++num;
484                 }
485                 if (num >= host->can_queue)
486                         num = host->can_queue - 1;
487                 if (depth > (host->can_queue - num))
488                         depth = host->can_queue - num;
489                 if (depth > 256)
490                         depth = 256;
491                 else if (depth < 2)
492                         depth = 2;
493                 return scsi_change_queue_depth(sdev, depth);
494         }
495 
496         return scsi_change_queue_depth(sdev, 1);
497 }
498 
499 static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf)
500 {
501         struct scsi_device *sdev = to_scsi_device(dev);
502         struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
503         if (sdev_channel(sdev) != CONTAINER_CHANNEL)
504                 return snprintf(buf, PAGE_SIZE, sdev->no_uld_attach
505                   ? "Hidden\n" :
506                   ((aac->jbod && (sdev->type == TYPE_DISK)) ? "JBOD\n" : ""));
507         return snprintf(buf, PAGE_SIZE, "%s\n",
508           get_container_type(aac->fsa_dev[sdev_id(sdev)].type));
509 }
510 
511 static struct device_attribute aac_raid_level_attr = {
512         .attr = {
513                 .name = "level",
514                 .mode = S_IRUGO,
515         },
516         .show = aac_show_raid_level
517 };
518 
519 static struct device_attribute *aac_dev_attrs[] = {
520         &aac_raid_level_attr,
521         NULL,
522 };
523 
524 static int aac_ioctl(struct scsi_device *sdev, int cmd, void __user * arg)
525 {
526         struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
527         if (!capable(CAP_SYS_RAWIO))
528                 return -EPERM;
529         return aac_do_ioctl(dev, cmd, arg);
530 }
531 
532 static int aac_eh_abort(struct scsi_cmnd* cmd)
533 {
534         struct scsi_device * dev = cmd->device;
535         struct Scsi_Host * host = dev->host;
536         struct aac_dev * aac = (struct aac_dev *)host->hostdata;
537         int count;
538         int ret = FAILED;
539 
540         printk(KERN_ERR "%s: Host adapter abort request (%d,%d,%d,%llu)\n",
541                 AAC_DRIVERNAME,
542                 host->host_no, sdev_channel(dev), sdev_id(dev), dev->lun);
543         switch (cmd->cmnd[0]) {
544         case SERVICE_ACTION_IN_16:
545                 if (!(aac->raw_io_interface) ||
546                     !(aac->raw_io_64) ||
547                     ((cmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
548                         break;
549         case INQUIRY:
550         case READ_CAPACITY:
551                 /* Mark associated FIB to not complete, eh handler does this */
552                 for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
553                         struct fib * fib = &aac->fibs[count];
554                         if (fib->hw_fib_va->header.XferState &&
555                           (fib->flags & FIB_CONTEXT_FLAG) &&
556                           (fib->callback_data == cmd)) {
557                                 fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
558                                 cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
559                                 ret = SUCCESS;
560                         }
561                 }
562                 break;
563         case TEST_UNIT_READY:
564                 /* Mark associated FIB to not complete, eh handler does this */
565                 for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
566                         struct scsi_cmnd * command;
567                         struct fib * fib = &aac->fibs[count];
568                         if ((fib->hw_fib_va->header.XferState & cpu_to_le32(Async | NoResponseExpected)) &&
569                           (fib->flags & FIB_CONTEXT_FLAG) &&
570                           ((command = fib->callback_data)) &&
571                           (command->device == cmd->device)) {
572                                 fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
573                                 command->SCp.phase = AAC_OWNER_ERROR_HANDLER;
574                                 if (command == cmd)
575                                         ret = SUCCESS;
576                         }
577                 }
578         }
579         return ret;
580 }
581 
582 /*
583  *      aac_eh_reset    - Reset command handling
584  *      @scsi_cmd:      SCSI command block causing the reset
585  *
586  */
587 static int aac_eh_reset(struct scsi_cmnd* cmd)
588 {
589         struct scsi_device * dev = cmd->device;
590         struct Scsi_Host * host = dev->host;
591         struct scsi_cmnd * command;
592         int count;
593         struct aac_dev * aac = (struct aac_dev *)host->hostdata;
594         unsigned long flags;
595 
596         /* Mark the associated FIB to not complete, eh handler does this */
597         for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
598                 struct fib * fib = &aac->fibs[count];
599                 if (fib->hw_fib_va->header.XferState &&
600                   (fib->flags & FIB_CONTEXT_FLAG) &&
601                   (fib->callback_data == cmd)) {
602                         fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
603                         cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
604                 }
605         }
606         printk(KERN_ERR "%s: Host adapter reset request. SCSI hang ?\n",
607                                         AAC_DRIVERNAME);
608 
609         if ((count = aac_check_health(aac)))
610                 return count;
611         /*
612          * Wait for all commands to complete to this specific
613          * target (block maximum 60 seconds).
614          */
615         for (count = 60; count; --count) {
616                 int active = aac->in_reset;
617 
618                 if (active == 0)
619                 __shost_for_each_device(dev, host) {
620                         spin_lock_irqsave(&dev->list_lock, flags);
621                         list_for_each_entry(command, &dev->cmd_list, list) {
622                                 if ((command != cmd) &&
623                                     (command->SCp.phase == AAC_OWNER_FIRMWARE)) {
624                                         active++;
625                                         break;
626                                 }
627                         }
628                         spin_unlock_irqrestore(&dev->list_lock, flags);
629                         if (active)
630                                 break;
631 
632                 }
633                 /*
634                  * We can exit If all the commands are complete
635                  */
636                 if (active == 0)
637                         return SUCCESS;
638                 ssleep(1);
639         }
640         printk(KERN_ERR "%s: SCSI bus appears hung\n", AAC_DRIVERNAME);
641         /*
642          * This adapter needs a blind reset, only do so for Adapters that
643          * support a register, instead of a commanded, reset.
644          */
645         if (((aac->supplement_adapter_info.SupportedOptions2 &
646           AAC_OPTION_MU_RESET) ||
647           (aac->supplement_adapter_info.SupportedOptions2 &
648           AAC_OPTION_DOORBELL_RESET)) &&
649           aac_check_reset &&
650           ((aac_check_reset != 1) ||
651            !(aac->supplement_adapter_info.SupportedOptions2 &
652             AAC_OPTION_IGNORE_RESET)))
653                 aac_reset_adapter(aac, 2); /* Bypass wait for command quiesce */
654         return SUCCESS; /* Cause an immediate retry of the command with a ten second delay after successful tur */
655 }
656 
657 /**
658  *      aac_cfg_open            -       open a configuration file
659  *      @inode: inode being opened
660  *      @file: file handle attached
661  *
662  *      Called when the configuration device is opened. Does the needed
663  *      set up on the handle and then returns
664  *
665  *      Bugs: This needs extending to check a given adapter is present
666  *      so we can support hot plugging, and to ref count adapters.
667  */
668 
669 static int aac_cfg_open(struct inode *inode, struct file *file)
670 {
671         struct aac_dev *aac;
672         unsigned minor_number = iminor(inode);
673         int err = -ENODEV;
674 
675         mutex_lock(&aac_mutex);  /* BKL pushdown: nothing else protects this list */
676         list_for_each_entry(aac, &aac_devices, entry) {
677                 if (aac->id == minor_number) {
678                         file->private_data = aac;
679                         err = 0;
680                         break;
681                 }
682         }
683         mutex_unlock(&aac_mutex);
684 
685         return err;
686 }
687 
688 /**
689  *      aac_cfg_ioctl           -       AAC configuration request
690  *      @inode: inode of device
691  *      @file: file handle
692  *      @cmd: ioctl command code
693  *      @arg: argument
694  *
695  *      Handles a configuration ioctl. Currently this involves wrapping it
696  *      up and feeding it into the nasty windowsalike glue layer.
697  *
698  *      Bugs: Needs locking against parallel ioctls lower down
699  *      Bugs: Needs to handle hot plugging
700  */
701 
702 static long aac_cfg_ioctl(struct file *file,
703                 unsigned int cmd, unsigned long arg)
704 {
705         struct aac_dev *aac = (struct aac_dev *)file->private_data;
706 
707         if (!capable(CAP_SYS_RAWIO))
708                 return -EPERM;
709 
710         return aac_do_ioctl(aac, cmd, (void __user *)arg);
711 }
712 
713 #ifdef CONFIG_COMPAT
714 static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long arg)
715 {
716         long ret;
717         switch (cmd) {
718         case FSACTL_MINIPORT_REV_CHECK:
719         case FSACTL_SENDFIB:
720         case FSACTL_OPEN_GET_ADAPTER_FIB:
721         case FSACTL_CLOSE_GET_ADAPTER_FIB:
722         case FSACTL_SEND_RAW_SRB:
723         case FSACTL_GET_PCI_INFO:
724         case FSACTL_QUERY_DISK:
725         case FSACTL_DELETE_DISK:
726         case FSACTL_FORCE_DELETE_DISK:
727         case FSACTL_GET_CONTAINERS:
728         case FSACTL_SEND_LARGE_FIB:
729                 ret = aac_do_ioctl(dev, cmd, (void __user *)arg);
730                 break;
731 
732         case FSACTL_GET_NEXT_ADAPTER_FIB: {
733                 struct fib_ioctl __user *f;
734 
735                 f = compat_alloc_user_space(sizeof(*f));
736                 ret = 0;
737                 if (clear_user(f, sizeof(*f)))
738                         ret = -EFAULT;
739                 if (copy_in_user(f, (void __user *)arg, sizeof(struct fib_ioctl) - sizeof(u32)))
740                         ret = -EFAULT;
741                 if (!ret)
742                         ret = aac_do_ioctl(dev, cmd, f);
743                 break;
744         }
745 
746         default:
747                 ret = -ENOIOCTLCMD;
748                 break;
749         }
750         return ret;
751 }
752 
753 static int aac_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
754 {
755         struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
756         if (!capable(CAP_SYS_RAWIO))
757                 return -EPERM;
758         return aac_compat_do_ioctl(dev, cmd, (unsigned long)arg);
759 }
760 
761 static long aac_compat_cfg_ioctl(struct file *file, unsigned cmd, unsigned long arg)
762 {
763         if (!capable(CAP_SYS_RAWIO))
764                 return -EPERM;
765         return aac_compat_do_ioctl(file->private_data, cmd, arg);
766 }
767 #endif
768 
769 static ssize_t aac_show_model(struct device *device,
770                               struct device_attribute *attr, char *buf)
771 {
772         struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
773         int len;
774 
775         if (dev->supplement_adapter_info.AdapterTypeText[0]) {
776                 char * cp = dev->supplement_adapter_info.AdapterTypeText;
777                 while (*cp && *cp != ' ')
778                         ++cp;
779                 while (*cp == ' ')
780                         ++cp;
781                 len = snprintf(buf, PAGE_SIZE, "%s\n", cp);
782         } else
783                 len = snprintf(buf, PAGE_SIZE, "%s\n",
784                   aac_drivers[dev->cardtype].model);
785         return len;
786 }
787 
788 static ssize_t aac_show_vendor(struct device *device,
789                                struct device_attribute *attr, char *buf)
790 {
791         struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
792         int len;
793 
794         if (dev->supplement_adapter_info.AdapterTypeText[0]) {
795                 char * cp = dev->supplement_adapter_info.AdapterTypeText;
796                 while (*cp && *cp != ' ')
797                         ++cp;
798                 len = snprintf(buf, PAGE_SIZE, "%.*s\n",
799                   (int)(cp - (char *)dev->supplement_adapter_info.AdapterTypeText),
800                   dev->supplement_adapter_info.AdapterTypeText);
801         } else
802                 len = snprintf(buf, PAGE_SIZE, "%s\n",
803                   aac_drivers[dev->cardtype].vname);
804         return len;
805 }
806 
807 static ssize_t aac_show_flags(struct device *cdev,
808                               struct device_attribute *attr, char *buf)
809 {
810         int len = 0;
811         struct aac_dev *dev = (struct aac_dev*)class_to_shost(cdev)->hostdata;
812 
813         if (nblank(dprintk(x)))
814                 len = snprintf(buf, PAGE_SIZE, "dprintk\n");
815 #ifdef AAC_DETAILED_STATUS_INFO
816         len += snprintf(buf + len, PAGE_SIZE - len,
817                         "AAC_DETAILED_STATUS_INFO\n");
818 #endif
819         if (dev->raw_io_interface && dev->raw_io_64)
820                 len += snprintf(buf + len, PAGE_SIZE - len,
821                                 "SAI_READ_CAPACITY_16\n");
822         if (dev->jbod)
823                 len += snprintf(buf + len, PAGE_SIZE - len, "SUPPORTED_JBOD\n");
824         if (dev->supplement_adapter_info.SupportedOptions2 &
825                 AAC_OPTION_POWER_MANAGEMENT)
826                 len += snprintf(buf + len, PAGE_SIZE - len,
827                                 "SUPPORTED_POWER_MANAGEMENT\n");
828         if (dev->msi)
829                 len += snprintf(buf + len, PAGE_SIZE - len, "PCI_HAS_MSI\n");
830         return len;
831 }
832 
833 static ssize_t aac_show_kernel_version(struct device *device,
834                                        struct device_attribute *attr,
835                                        char *buf)
836 {
837         struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
838         int len, tmp;
839 
840         tmp = le32_to_cpu(dev->adapter_info.kernelrev);
841         len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
842           tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
843           le32_to_cpu(dev->adapter_info.kernelbuild));
844         return len;
845 }
846 
847 static ssize_t aac_show_monitor_version(struct device *device,
848                                         struct device_attribute *attr,
849                                         char *buf)
850 {
851         struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
852         int len, tmp;
853 
854         tmp = le32_to_cpu(dev->adapter_info.monitorrev);
855         len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
856           tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
857           le32_to_cpu(dev->adapter_info.monitorbuild));
858         return len;
859 }
860 
861 static ssize_t aac_show_bios_version(struct device *device,
862                                      struct device_attribute *attr,
863                                      char *buf)
864 {
865         struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
866         int len, tmp;
867 
868         tmp = le32_to_cpu(dev->adapter_info.biosrev);
869         len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
870           tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
871           le32_to_cpu(dev->adapter_info.biosbuild));
872         return len;
873 }
874 
875 static ssize_t aac_show_serial_number(struct device *device,
876                                struct device_attribute *attr, char *buf)
877 {
878         struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
879         int len = 0;
880 
881         if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
882                 len = snprintf(buf, 16, "%06X\n",
883                   le32_to_cpu(dev->adapter_info.serial[0]));
884         if (len &&
885           !memcmp(&dev->supplement_adapter_info.MfgPcbaSerialNo[
886             sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo)-len],
887           buf, len-1))
888                 len = snprintf(buf, 16, "%.*s\n",
889                   (int)sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo),
890                   dev->supplement_adapter_info.MfgPcbaSerialNo);
891 
892         return min(len, 16);
893 }
894 
895 static ssize_t aac_show_max_channel(struct device *device,
896                                     struct device_attribute *attr, char *buf)
897 {
898         return snprintf(buf, PAGE_SIZE, "%d\n",
899           class_to_shost(device)->max_channel);
900 }
901 
902 static ssize_t aac_show_max_id(struct device *device,
903                                struct device_attribute *attr, char *buf)
904 {
905         return snprintf(buf, PAGE_SIZE, "%d\n",
906           class_to_shost(device)->max_id);
907 }
908 
909 static ssize_t aac_store_reset_adapter(struct device *device,
910                                        struct device_attribute *attr,
911                                        const char *buf, size_t count)
912 {
913         int retval = -EACCES;
914 
915         if (!capable(CAP_SYS_ADMIN))
916                 return retval;
917         retval = aac_reset_adapter((struct aac_dev*)class_to_shost(device)->hostdata, buf[0] == '!');
918         if (retval >= 0)
919                 retval = count;
920         return retval;
921 }
922 
923 static ssize_t aac_show_reset_adapter(struct device *device,
924                                       struct device_attribute *attr,
925                                       char *buf)
926 {
927         struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
928         int len, tmp;
929 
930         tmp = aac_adapter_check_health(dev);
931         if ((tmp == 0) && dev->in_reset)
932                 tmp = -EBUSY;
933         len = snprintf(buf, PAGE_SIZE, "0x%x\n", tmp);
934         return len;
935 }
936 
937 static struct device_attribute aac_model = {
938         .attr = {
939                 .name = "model",
940                 .mode = S_IRUGO,
941         },
942         .show = aac_show_model,
943 };
944 static struct device_attribute aac_vendor = {
945         .attr = {
946                 .name = "vendor",
947                 .mode = S_IRUGO,
948         },
949         .show = aac_show_vendor,
950 };
951 static struct device_attribute aac_flags = {
952         .attr = {
953                 .name = "flags",
954                 .mode = S_IRUGO,
955         },
956         .show = aac_show_flags,
957 };
958 static struct device_attribute aac_kernel_version = {
959         .attr = {
960                 .name = "hba_kernel_version",
961                 .mode = S_IRUGO,
962         },
963         .show = aac_show_kernel_version,
964 };
965 static struct device_attribute aac_monitor_version = {
966         .attr = {
967                 .name = "hba_monitor_version",
968                 .mode = S_IRUGO,
969         },
970         .show = aac_show_monitor_version,
971 };
972 static struct device_attribute aac_bios_version = {
973         .attr = {
974                 .name = "hba_bios_version",
975                 .mode = S_IRUGO,
976         },
977         .show = aac_show_bios_version,
978 };
979 static struct device_attribute aac_serial_number = {
980         .attr = {
981                 .name = "serial_number",
982                 .mode = S_IRUGO,
983         },
984         .show = aac_show_serial_number,
985 };
986 static struct device_attribute aac_max_channel = {
987         .attr = {
988                 .name = "max_channel",
989                 .mode = S_IRUGO,
990         },
991         .show = aac_show_max_channel,
992 };
993 static struct device_attribute aac_max_id = {
994         .attr = {
995                 .name = "max_id",
996                 .mode = S_IRUGO,
997         },
998         .show = aac_show_max_id,
999 };
1000 static struct device_attribute aac_reset = {
1001         .attr = {
1002                 .name = "reset_host",
1003                 .mode = S_IWUSR|S_IRUGO,
1004         },
1005         .store = aac_store_reset_adapter,
1006         .show = aac_show_reset_adapter,
1007 };
1008 
1009 static struct device_attribute *aac_attrs[] = {
1010         &aac_model,
1011         &aac_vendor,
1012         &aac_flags,
1013         &aac_kernel_version,
1014         &aac_monitor_version,
1015         &aac_bios_version,
1016         &aac_serial_number,
1017         &aac_max_channel,
1018         &aac_max_id,
1019         &aac_reset,
1020         NULL
1021 };
1022 
1023 ssize_t aac_get_serial_number(struct device *device, char *buf)
1024 {
1025         return aac_show_serial_number(device, &aac_serial_number, buf);
1026 }
1027 
1028 static const struct file_operations aac_cfg_fops = {
1029         .owner          = THIS_MODULE,
1030         .unlocked_ioctl = aac_cfg_ioctl,
1031 #ifdef CONFIG_COMPAT
1032         .compat_ioctl   = aac_compat_cfg_ioctl,
1033 #endif
1034         .open           = aac_cfg_open,
1035         .llseek         = noop_llseek,
1036 };
1037 
1038 static struct scsi_host_template aac_driver_template = {
1039         .module                         = THIS_MODULE,
1040         .name                           = "AAC",
1041         .proc_name                      = AAC_DRIVERNAME,
1042         .info                           = aac_info,
1043         .ioctl                          = aac_ioctl,
1044 #ifdef CONFIG_COMPAT
1045         .compat_ioctl                   = aac_compat_ioctl,
1046 #endif
1047         .queuecommand                   = aac_queuecommand,
1048         .bios_param                     = aac_biosparm,
1049         .shost_attrs                    = aac_attrs,
1050         .slave_configure                = aac_slave_configure,
1051         .change_queue_depth             = aac_change_queue_depth,
1052         .sdev_attrs                     = aac_dev_attrs,
1053         .eh_abort_handler               = aac_eh_abort,
1054         .eh_host_reset_handler          = aac_eh_reset,
1055         .can_queue                      = AAC_NUM_IO_FIB,
1056         .this_id                        = MAXIMUM_NUM_CONTAINERS,
1057         .sg_tablesize                   = 16,
1058         .max_sectors                    = 128,
1059 #if (AAC_NUM_IO_FIB > 256)
1060         .cmd_per_lun                    = 256,
1061 #else
1062         .cmd_per_lun                    = AAC_NUM_IO_FIB,
1063 #endif
1064         .use_clustering                 = ENABLE_CLUSTERING,
1065         .emulated                       = 1,
1066         .no_write_same                  = 1,
1067 };
1068 
1069 static void __aac_shutdown(struct aac_dev * aac)
1070 {
1071         int i;
1072 
1073         aac_send_shutdown(aac);
1074 
1075         if (aac->aif_thread) {
1076                 int i;
1077                 /* Clear out events first */
1078                 for (i = 0; i < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); i++) {
1079                         struct fib *fib = &aac->fibs[i];
1080                         if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) &&
1081                             (fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected)))
1082                                 up(&fib->event_wait);
1083                 }
1084                 kthread_stop(aac->thread);
1085         }
1086         aac_adapter_disable_int(aac);
1087         if (aac->pdev->device == PMC_DEVICE_S6 ||
1088             aac->pdev->device == PMC_DEVICE_S7 ||
1089             aac->pdev->device == PMC_DEVICE_S8 ||
1090             aac->pdev->device == PMC_DEVICE_S9) {
1091                 if (aac->max_msix > 1) {
1092                         for (i = 0; i < aac->max_msix; i++) {
1093                                 free_irq(pci_irq_vector(aac->pdev, i),
1094                                          &(aac->aac_msix[i]));
1095                         }
1096                 } else {
1097                         free_irq(aac->pdev->irq,
1098                                  &(aac->aac_msix[0]));
1099                 }
1100         } else {
1101                 free_irq(aac->pdev->irq, aac);
1102         }
1103         if (aac->msi)
1104                 pci_disable_msi(aac->pdev);
1105         else if (aac->max_msix > 1)
1106                 pci_disable_msix(aac->pdev);
1107 }
1108 static void aac_init_char(void)
1109 {
1110         aac_cfg_major = register_chrdev(0, "aac", &aac_cfg_fops);
1111         if (aac_cfg_major < 0) {
1112                 pr_err("aacraid: unable to register \"aac\" device.\n");
1113         }
1114 }
1115 
1116 static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1117 {
1118         unsigned index = id->driver_data;
1119         struct Scsi_Host *shost;
1120         struct aac_dev *aac;
1121         struct list_head *insert = &aac_devices;
1122         int error = -ENODEV;
1123         int unique_id = 0;
1124         u64 dmamask;
1125         extern int aac_sync_mode;
1126 
1127         /*
1128          * Only series 7 needs freset.
1129          */
1130          if (pdev->device == PMC_DEVICE_S7)
1131                 pdev->needs_freset = 1;
1132 
1133         list_for_each_entry(aac, &aac_devices, entry) {
1134                 if (aac->id > unique_id)
1135                         break;
1136                 insert = &aac->entry;
1137                 unique_id++;
1138         }
1139 
1140         pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
1141                                PCIE_LINK_STATE_CLKPM);
1142 
1143         error = pci_enable_device(pdev);
1144         if (error)
1145                 goto out;
1146         error = -ENODEV;
1147 
1148         /*
1149          * If the quirk31 bit is set, the adapter needs adapter
1150          * to driver communication memory to be allocated below 2gig
1151          */
1152         if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
1153                 dmamask = DMA_BIT_MASK(31);
1154         else
1155                 dmamask = DMA_BIT_MASK(32);
1156 
1157         if (pci_set_dma_mask(pdev, dmamask) ||
1158                         pci_set_consistent_dma_mask(pdev, dmamask))
1159                 goto out_disable_pdev;
1160 
1161         pci_set_master(pdev);
1162 
1163         shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
1164         if (!shost)
1165                 goto out_disable_pdev;
1166 
1167         shost->irq = pdev->irq;
1168         shost->unique_id = unique_id;
1169         shost->max_cmd_len = 16;
1170         shost->use_cmd_list = 1;
1171 
1172         if (aac_cfg_major == AAC_CHARDEV_NEEDS_REINIT)
1173                 aac_init_char();
1174 
1175         aac = (struct aac_dev *)shost->hostdata;
1176         aac->base_start = pci_resource_start(pdev, 0);
1177         aac->scsi_host_ptr = shost;
1178         aac->pdev = pdev;
1179         aac->name = aac_driver_template.name;
1180         aac->id = shost->unique_id;
1181         aac->cardtype = index;
1182         INIT_LIST_HEAD(&aac->entry);
1183 
1184         aac->fibs = kzalloc(sizeof(struct fib) * (shost->can_queue + AAC_NUM_MGT_FIB), GFP_KERNEL);
1185         if (!aac->fibs)
1186                 goto out_free_host;
1187         spin_lock_init(&aac->fib_lock);
1188 
1189         mutex_init(&aac->ioctl_mutex);
1190         /*
1191          *      Map in the registers from the adapter.
1192          */
1193         aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
1194         if ((*aac_drivers[index].init)(aac))
1195                 goto out_unmap;
1196 
1197         if (aac->sync_mode) {
1198                 if (aac_sync_mode)
1199                         printk(KERN_INFO "%s%d: Sync. mode enforced "
1200                                 "by driver parameter. This will cause "
1201                                 "a significant performance decrease!\n",
1202                                 aac->name,
1203                                 aac->id);
1204                 else
1205                         printk(KERN_INFO "%s%d: Async. mode not supported "
1206                                 "by current driver, sync. mode enforced."
1207                                 "\nPlease update driver to get full performance.\n",
1208                                 aac->name,
1209                                 aac->id);
1210         }
1211 
1212         /*
1213          *      Start any kernel threads needed
1214          */
1215         aac->thread = kthread_run(aac_command_thread, aac, AAC_DRIVERNAME);
1216         if (IS_ERR(aac->thread)) {
1217                 printk(KERN_ERR "aacraid: Unable to create command thread.\n");
1218                 error = PTR_ERR(aac->thread);
1219                 aac->thread = NULL;
1220                 goto out_deinit;
1221         }
1222 
1223         /*
1224          * If we had set a smaller DMA mask earlier, set it to 4gig
1225          * now since the adapter can dma data to at least a 4gig
1226          * address space.
1227          */
1228         if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
1229                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
1230                         goto out_deinit;
1231 
1232         aac->maximum_num_channels = aac_drivers[index].channels;
1233         error = aac_get_adapter_info(aac);
1234         if (error < 0)
1235                 goto out_deinit;
1236 
1237         /*
1238          * Lets override negotiations and drop the maximum SG limit to 34
1239          */
1240         if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) &&
1241                         (shost->sg_tablesize > 34)) {
1242                 shost->sg_tablesize = 34;
1243                 shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1244         }
1245 
1246         if ((aac_drivers[index].quirks & AAC_QUIRK_17SG) &&
1247                         (shost->sg_tablesize > 17)) {
1248                 shost->sg_tablesize = 17;
1249                 shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1250         }
1251 
1252         error = pci_set_dma_max_seg_size(pdev,
1253                 (aac->adapter_info.options & AAC_OPT_NEW_COMM) ?
1254                         (shost->max_sectors << 9) : 65536);
1255         if (error)
1256                 goto out_deinit;
1257 
1258         /*
1259          * Firmware printf works only with older firmware.
1260          */
1261         if (aac_drivers[index].quirks & AAC_QUIRK_34SG)
1262                 aac->printf_enabled = 1;
1263         else
1264                 aac->printf_enabled = 0;
1265 
1266         /*
1267          * max channel will be the physical channels plus 1 virtual channel
1268          * all containers are on the virtual channel 0 (CONTAINER_CHANNEL)
1269          * physical channels are address by their actual physical number+1
1270          */
1271         if (aac->nondasd_support || expose_physicals || aac->jbod)
1272                 shost->max_channel = aac->maximum_num_channels;
1273         else
1274                 shost->max_channel = 0;
1275 
1276         aac_get_config_status(aac, 0);
1277         aac_get_containers(aac);
1278         list_add(&aac->entry, insert);
1279 
1280         shost->max_id = aac->maximum_num_containers;
1281         if (shost->max_id < aac->maximum_num_physicals)
1282                 shost->max_id = aac->maximum_num_physicals;
1283         if (shost->max_id < MAXIMUM_NUM_CONTAINERS)
1284                 shost->max_id = MAXIMUM_NUM_CONTAINERS;
1285         else
1286                 shost->this_id = shost->max_id;
1287 
1288         if (aac_drivers[index].quirks & AAC_QUIRK_SRC)
1289                 aac_intr_normal(aac, 0, 2, 0, NULL);
1290 
1291         /*
1292          * dmb - we may need to move the setting of these parms somewhere else once
1293          * we get a fib that can report the actual numbers
1294          */
1295         shost->max_lun = AAC_MAX_LUN;
1296 
1297         pci_set_drvdata(pdev, shost);
1298 
1299         error = scsi_add_host(shost, &pdev->dev);
1300         if (error)
1301                 goto out_deinit;
1302         scsi_scan_host(shost);
1303 
1304         pci_enable_pcie_error_reporting(pdev);
1305         pci_save_state(pdev);
1306 
1307         return 0;
1308 
1309  out_deinit:
1310         __aac_shutdown(aac);
1311  out_unmap:
1312         aac_fib_map_free(aac);
1313         if (aac->comm_addr)
1314                 pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
1315                   aac->comm_phys);
1316         kfree(aac->queues);
1317         aac_adapter_ioremap(aac, 0);
1318         kfree(aac->fibs);
1319         kfree(aac->fsa_dev);
1320  out_free_host:
1321         scsi_host_put(shost);
1322  out_disable_pdev:
1323         pci_disable_device(pdev);
1324  out:
1325         return error;
1326 }
1327 
1328 static void aac_release_resources(struct aac_dev *aac)
1329 {
1330         int i;
1331 
1332         aac_adapter_disable_int(aac);
1333         if (aac->pdev->device == PMC_DEVICE_S6 ||
1334             aac->pdev->device == PMC_DEVICE_S7 ||
1335             aac->pdev->device == PMC_DEVICE_S8 ||
1336             aac->pdev->device == PMC_DEVICE_S9) {
1337                 if (aac->max_msix > 1) {
1338                         for (i = 0; i < aac->max_msix; i++)
1339                                 free_irq(pci_irq_vector(aac->pdev, i),
1340                                         &(aac->aac_msix[i]));
1341                 } else {
1342                         free_irq(aac->pdev->irq, &(aac->aac_msix[0]));
1343                 }
1344         } else {
1345                 free_irq(aac->pdev->irq, aac);
1346         }
1347         if (aac->msi)
1348                 pci_disable_msi(aac->pdev);
1349         else if (aac->max_msix > 1)
1350                 pci_disable_msix(aac->pdev);
1351 
1352 }
1353 
1354 static int aac_acquire_resources(struct aac_dev *dev)
1355 {
1356         int i, j;
1357         int instance = dev->id;
1358         const char *name = dev->name;
1359         unsigned long status;
1360         /*
1361          *      First clear out all interrupts.  Then enable the one's that we
1362          *      can handle.
1363          */
1364         while (!((status = src_readl(dev, MUnit.OMR)) & KERNEL_UP_AND_RUNNING)
1365                 || status == 0xffffffff)
1366                         msleep(20);
1367 
1368         aac_adapter_disable_int(dev);
1369         aac_adapter_enable_int(dev);
1370 
1371 
1372         if ((dev->pdev->device == PMC_DEVICE_S7 ||
1373              dev->pdev->device == PMC_DEVICE_S8 ||
1374              dev->pdev->device == PMC_DEVICE_S9))
1375                 aac_define_int_mode(dev);
1376 
1377         if (dev->msi_enabled)
1378                 aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
1379 
1380         if (!dev->sync_mode && dev->msi_enabled && dev->max_msix > 1) {
1381                 for (i = 0; i < dev->max_msix; i++) {
1382                         dev->aac_msix[i].vector_no = i;
1383                         dev->aac_msix[i].dev = dev;
1384 
1385                         if (request_irq(pci_irq_vector(dev->pdev, i),
1386                                         dev->a_ops.adapter_intr,
1387                                         0, "aacraid", &(dev->aac_msix[i]))) {
1388                                 printk(KERN_ERR "%s%d: Failed to register IRQ for vector %d.\n",
1389                                                 name, instance, i);
1390                                 for (j = 0 ; j < i ; j++)
1391                                         free_irq(pci_irq_vector(dev->pdev, j),
1392                                                  &(dev->aac_msix[j]));
1393                                 pci_disable_msix(dev->pdev);
1394                                 goto error_iounmap;
1395                         }
1396                 }
1397         } else {
1398                 dev->aac_msix[0].vector_no = 0;
1399                 dev->aac_msix[0].dev = dev;
1400 
1401                 if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
1402                         IRQF_SHARED, "aacraid",
1403                         &(dev->aac_msix[0])) < 0) {
1404                         if (dev->msi)
1405                                 pci_disable_msi(dev->pdev);
1406                         printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
1407                                         name, instance);
1408                         goto error_iounmap;
1409                 }
1410         }
1411 
1412         aac_adapter_enable_int(dev);
1413 
1414         /*max msix may change  after EEH
1415          * Re-assign vectors to fibs
1416          */
1417         aac_fib_vector_assign(dev);
1418 
1419         if (!dev->sync_mode) {
1420                 /* After EEH recovery or suspend resume, max_msix count
1421                  * may change, therfore updating in init as well.
1422                  */
1423                 dev->init->Sa_MSIXVectors = cpu_to_le32(dev->max_msix);
1424                 aac_adapter_start(dev);
1425         }
1426         return 0;
1427 
1428 error_iounmap:
1429         return -1;
1430 
1431 }
1432 
1433 #if (defined(CONFIG_PM))
1434 static int aac_suspend(struct pci_dev *pdev, pm_message_t state)
1435 {
1436 
1437         struct Scsi_Host *shost = pci_get_drvdata(pdev);
1438         struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1439 
1440         scsi_block_requests(shost);
1441         aac_send_shutdown(aac);
1442 
1443         aac_release_resources(aac);
1444 
1445         pci_set_drvdata(pdev, shost);
1446         pci_save_state(pdev);
1447         pci_disable_device(pdev);
1448         pci_set_power_state(pdev, pci_choose_state(pdev, state));
1449 
1450         return 0;
1451 }
1452 
1453 static int aac_resume(struct pci_dev *pdev)
1454 {
1455         struct Scsi_Host *shost = pci_get_drvdata(pdev);
1456         struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1457         int r;
1458 
1459         pci_set_power_state(pdev, PCI_D0);
1460         pci_enable_wake(pdev, PCI_D0, 0);
1461         pci_restore_state(pdev);
1462         r = pci_enable_device(pdev);
1463 
1464         if (r)
1465                 goto fail_device;
1466 
1467         pci_set_master(pdev);
1468         if (aac_acquire_resources(aac))
1469                 goto fail_device;
1470         /*
1471         * reset this flag to unblock ioctl() as it was set at
1472         * aac_send_shutdown() to block ioctls from upperlayer
1473         */
1474         aac->adapter_shutdown = 0;
1475         scsi_unblock_requests(shost);
1476 
1477         return 0;
1478 
1479 fail_device:
1480         printk(KERN_INFO "%s%d: resume failed.\n", aac->name, aac->id);
1481         scsi_host_put(shost);
1482         pci_disable_device(pdev);
1483         return -ENODEV;
1484 }
1485 #endif
1486 
1487 static void aac_shutdown(struct pci_dev *dev)
1488 {
1489         struct Scsi_Host *shost = pci_get_drvdata(dev);
1490         scsi_block_requests(shost);
1491         __aac_shutdown((struct aac_dev *)shost->hostdata);
1492 }
1493 
1494 static void aac_remove_one(struct pci_dev *pdev)
1495 {
1496         struct Scsi_Host *shost = pci_get_drvdata(pdev);
1497         struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1498 
1499         scsi_remove_host(shost);
1500 
1501         __aac_shutdown(aac);
1502         aac_fib_map_free(aac);
1503         pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
1504                         aac->comm_phys);
1505         kfree(aac->queues);
1506 
1507         aac_adapter_ioremap(aac, 0);
1508 
1509         kfree(aac->fibs);
1510         kfree(aac->fsa_dev);
1511 
1512         list_del(&aac->entry);
1513         scsi_host_put(shost);
1514         pci_disable_device(pdev);
1515         if (list_empty(&aac_devices)) {
1516                 unregister_chrdev(aac_cfg_major, "aac");
1517                 aac_cfg_major = AAC_CHARDEV_NEEDS_REINIT;
1518         }
1519 }
1520 
1521 static void aac_flush_ios(struct aac_dev *aac)
1522 {
1523         int i;
1524         struct scsi_cmnd *cmd;
1525 
1526         for (i = 0; i < aac->scsi_host_ptr->can_queue; i++) {
1527                 cmd = (struct scsi_cmnd *)aac->fibs[i].callback_data;
1528                 if (cmd && (cmd->SCp.phase == AAC_OWNER_FIRMWARE)) {
1529                         scsi_dma_unmap(cmd);
1530 
1531                         if (aac->handle_pci_error)
1532                                 cmd->result = DID_NO_CONNECT << 16;
1533                         else
1534                                 cmd->result = DID_RESET << 16;
1535 
1536                         cmd->scsi_done(cmd);
1537                 }
1538         }
1539 }
1540 
1541 static pci_ers_result_t aac_pci_error_detected(struct pci_dev *pdev,
1542                                         enum pci_channel_state error)
1543 {
1544         struct Scsi_Host *shost = pci_get_drvdata(pdev);
1545         struct aac_dev *aac = shost_priv(shost);
1546 
1547         dev_err(&pdev->dev, "aacraid: PCI error detected %x\n", error);
1548 
1549         switch (error) {
1550         case pci_channel_io_normal:
1551                 return PCI_ERS_RESULT_CAN_RECOVER;
1552         case pci_channel_io_frozen:
1553                 aac->handle_pci_error = 1;
1554 
1555                 scsi_block_requests(aac->scsi_host_ptr);
1556                 aac_flush_ios(aac);
1557                 aac_release_resources(aac);
1558 
1559                 pci_disable_pcie_error_reporting(pdev);
1560                 aac_adapter_ioremap(aac, 0);
1561 
1562                 return PCI_ERS_RESULT_NEED_RESET;
1563         case pci_channel_io_perm_failure:
1564                 aac->handle_pci_error = 1;
1565 
1566                 aac_flush_ios(aac);
1567                 return PCI_ERS_RESULT_DISCONNECT;
1568         }
1569 
1570         return PCI_ERS_RESULT_NEED_RESET;
1571 }
1572 
1573 static pci_ers_result_t aac_pci_mmio_enabled(struct pci_dev *pdev)
1574 {
1575         dev_err(&pdev->dev, "aacraid: PCI error - mmio enabled\n");
1576         return PCI_ERS_RESULT_NEED_RESET;
1577 }
1578 
1579 static pci_ers_result_t aac_pci_slot_reset(struct pci_dev *pdev)
1580 {
1581         dev_err(&pdev->dev, "aacraid: PCI error - slot reset\n");
1582         pci_restore_state(pdev);
1583         if (pci_enable_device(pdev)) {
1584                 dev_warn(&pdev->dev,
1585                         "aacraid: failed to enable slave\n");
1586                 goto fail_device;
1587         }
1588 
1589         pci_set_master(pdev);
1590 
1591         if (pci_enable_device_mem(pdev)) {
1592                 dev_err(&pdev->dev, "pci_enable_device_mem failed\n");
1593                 goto fail_device;
1594         }
1595 
1596         return PCI_ERS_RESULT_RECOVERED;
1597 
1598 fail_device:
1599         dev_err(&pdev->dev, "aacraid: PCI error - slot reset failed\n");
1600         return PCI_ERS_RESULT_DISCONNECT;
1601 }
1602 
1603 
1604 static void aac_pci_resume(struct pci_dev *pdev)
1605 {
1606         struct Scsi_Host *shost = pci_get_drvdata(pdev);
1607         struct scsi_device *sdev = NULL;
1608         struct aac_dev *aac = (struct aac_dev *)shost_priv(shost);
1609 
1610         pci_cleanup_aer_uncorrect_error_status(pdev);
1611 
1612         if (aac_adapter_ioremap(aac, aac->base_size)) {
1613 
1614                 dev_err(&pdev->dev, "aacraid: ioremap failed\n");
1615                 /* remap failed, go back ... */
1616                 aac->comm_interface = AAC_COMM_PRODUCER;
1617                 if (aac_adapter_ioremap(aac, AAC_MIN_FOOTPRINT_SIZE)) {
1618                         dev_warn(&pdev->dev,
1619                                 "aacraid: unable to map adapter.\n");
1620 
1621                         return;
1622                 }
1623         }
1624 
1625         msleep(10000);
1626 
1627         aac_acquire_resources(aac);
1628 
1629         /*
1630          * reset this flag to unblock ioctl() as it was set
1631          * at aac_send_shutdown() to block ioctls from upperlayer
1632          */
1633         aac->adapter_shutdown = 0;
1634         aac->handle_pci_error = 0;
1635 
1636         shost_for_each_device(sdev, shost)
1637                 if (sdev->sdev_state == SDEV_OFFLINE)
1638                         sdev->sdev_state = SDEV_RUNNING;
1639         scsi_unblock_requests(aac->scsi_host_ptr);
1640         scsi_scan_host(aac->scsi_host_ptr);
1641         pci_save_state(pdev);
1642 
1643         dev_err(&pdev->dev, "aacraid: PCI error - resume\n");
1644 }
1645 
1646 static struct pci_error_handlers aac_pci_err_handler = {
1647         .error_detected         = aac_pci_error_detected,
1648         .mmio_enabled           = aac_pci_mmio_enabled,
1649         .slot_reset             = aac_pci_slot_reset,
1650         .resume                 = aac_pci_resume,
1651 };
1652 
1653 static struct pci_driver aac_pci_driver = {
1654         .name           = AAC_DRIVERNAME,
1655         .id_table       = aac_pci_tbl,
1656         .probe          = aac_probe_one,
1657         .remove         = aac_remove_one,
1658 #if (defined(CONFIG_PM))
1659         .suspend        = aac_suspend,
1660         .resume         = aac_resume,
1661 #endif
1662         .shutdown       = aac_shutdown,
1663         .err_handler    = &aac_pci_err_handler,
1664 };
1665 
1666 static int __init aac_init(void)
1667 {
1668         int error;
1669 
1670         printk(KERN_INFO "Adaptec %s driver %s\n",
1671           AAC_DRIVERNAME, aac_driver_version);
1672 
1673         error = pci_register_driver(&aac_pci_driver);
1674         if (error < 0)
1675                 return error;
1676 
1677         aac_init_char();
1678 
1679 
1680         return 0;
1681 }
1682 
1683 static void __exit aac_exit(void)
1684 {
1685         if (aac_cfg_major > -1)
1686                 unregister_chrdev(aac_cfg_major, "aac");
1687         pci_unregister_driver(&aac_pci_driver);
1688 }
1689 
1690 module_init(aac_init);
1691 module_exit(aac_exit);
1692 

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