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scsi: aacraid: Add task management functionality
[mirror_ubuntu-zesty-kernel.git] / drivers / scsi / aacraid / linit.c
1 /*
2 * Adaptec AAC series RAID controller driver
3 * (c) Copyright 2001 Red Hat Inc.
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 int chn, tid;
405 unsigned int depth = 0;
406 unsigned int set_timeout = 0;
407
408 chn = aac_logical_to_phys(sdev_channel(sdev));
409 tid = sdev_id(sdev);
410 if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS &&
411 aac->hba_map[chn][tid].devtype == AAC_DEVTYPE_NATIVE_RAW) {
412 depth = aac->hba_map[chn][tid].qd_limit;
413 set_timeout = 1;
414 goto common_config;
415 }
416
417
418 if (aac->jbod && (sdev->type == TYPE_DISK))
419 sdev->removable = 1;
420
421 if (sdev->type == TYPE_DISK
422 && sdev_channel(sdev) != CONTAINER_CHANNEL
423 && (!aac->jbod || sdev->inq_periph_qual)
424 && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))) {
425
426 if (expose_physicals == 0)
427 return -ENXIO;
428
429 if (expose_physicals < 0)
430 sdev->no_uld_attach = 1;
431 }
432
433 if (sdev->tagged_supported
434 && sdev->type == TYPE_DISK
435 && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
436 && !sdev->no_uld_attach) {
437
438 struct scsi_device * dev;
439 struct Scsi_Host *host = sdev->host;
440 unsigned num_lsu = 0;
441 unsigned num_one = 0;
442 unsigned cid;
443
444 set_timeout = 1;
445
446 for (cid = 0; cid < aac->maximum_num_containers; ++cid)
447 if (aac->fsa_dev[cid].valid)
448 ++num_lsu;
449
450 __shost_for_each_device(dev, host) {
451 if (dev->tagged_supported
452 && dev->type == TYPE_DISK
453 && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
454 && !dev->no_uld_attach) {
455 if ((sdev_channel(dev) != CONTAINER_CHANNEL)
456 || !aac->fsa_dev[sdev_id(dev)].valid) {
457 ++num_lsu;
458 }
459 } else {
460 ++num_one;
461 }
462 }
463
464 if (num_lsu == 0)
465 ++num_lsu;
466
467 depth = (host->can_queue - num_one) / num_lsu;
468 }
469
470 common_config:
471 /*
472 * Firmware has an individual device recovery time typically
473 * of 35 seconds, give us a margin.
474 */
475 if (set_timeout && sdev->request_queue->rq_timeout < (45 * HZ))
476 blk_queue_rq_timeout(sdev->request_queue, 45*HZ);
477
478 if (depth > 256)
479 depth = 256;
480 else if (depth < 1)
481 depth = 1;
482
483 scsi_change_queue_depth(sdev, depth);
484
485 sdev->tagged_supported = 1;
486
487 return 0;
488 }
489
490 /**
491 * aac_change_queue_depth - alter queue depths
492 * @sdev: SCSI device we are considering
493 * @depth: desired queue depth
494 *
495 * Alters queue depths for target device based on the host adapter's
496 * total capacity and the queue depth supported by the target device.
497 */
498
499 static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
500 {
501 struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
502 int chn, tid, is_native_device = 0;
503
504 chn = aac_logical_to_phys(sdev_channel(sdev));
505 tid = sdev_id(sdev);
506 if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS &&
507 aac->hba_map[chn][tid].devtype == AAC_DEVTYPE_NATIVE_RAW)
508 is_native_device = 1;
509
510 if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
511 (sdev_channel(sdev) == CONTAINER_CHANNEL)) {
512 struct scsi_device * dev;
513 struct Scsi_Host *host = sdev->host;
514 unsigned num = 0;
515
516 __shost_for_each_device(dev, host) {
517 if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
518 (sdev_channel(dev) == CONTAINER_CHANNEL))
519 ++num;
520 ++num;
521 }
522 if (num >= host->can_queue)
523 num = host->can_queue - 1;
524 if (depth > (host->can_queue - num))
525 depth = host->can_queue - num;
526 if (depth > 256)
527 depth = 256;
528 else if (depth < 2)
529 depth = 2;
530 return scsi_change_queue_depth(sdev, depth);
531 } else if (is_native_device) {
532 scsi_change_queue_depth(sdev, aac->hba_map[chn][tid].qd_limit);
533 } else {
534 scsi_change_queue_depth(sdev, 1);
535 }
536 return sdev->queue_depth;
537 }
538
539 static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf)
540 {
541 struct scsi_device *sdev = to_scsi_device(dev);
542 struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
543 if (sdev_channel(sdev) != CONTAINER_CHANNEL)
544 return snprintf(buf, PAGE_SIZE, sdev->no_uld_attach
545 ? "Hidden\n" :
546 ((aac->jbod && (sdev->type == TYPE_DISK)) ? "JBOD\n" : ""));
547 return snprintf(buf, PAGE_SIZE, "%s\n",
548 get_container_type(aac->fsa_dev[sdev_id(sdev)].type));
549 }
550
551 static struct device_attribute aac_raid_level_attr = {
552 .attr = {
553 .name = "level",
554 .mode = S_IRUGO,
555 },
556 .show = aac_show_raid_level
557 };
558
559 static struct device_attribute *aac_dev_attrs[] = {
560 &aac_raid_level_attr,
561 NULL,
562 };
563
564 static int aac_ioctl(struct scsi_device *sdev, int cmd, void __user * arg)
565 {
566 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
567 if (!capable(CAP_SYS_RAWIO))
568 return -EPERM;
569 return aac_do_ioctl(dev, cmd, arg);
570 }
571
572 static int aac_eh_abort(struct scsi_cmnd* cmd)
573 {
574 struct scsi_device * dev = cmd->device;
575 struct Scsi_Host * host = dev->host;
576 struct aac_dev * aac = (struct aac_dev *)host->hostdata;
577 int count;
578 int ret = FAILED;
579
580 printk(KERN_ERR "%s: Host adapter abort request (%d,%d,%d,%llu)\n",
581 AAC_DRIVERNAME,
582 host->host_no, sdev_channel(dev), sdev_id(dev), dev->lun);
583 switch (cmd->cmnd[0]) {
584 case SERVICE_ACTION_IN_16:
585 if (!(aac->raw_io_interface) ||
586 !(aac->raw_io_64) ||
587 ((cmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
588 break;
589 case INQUIRY:
590 case READ_CAPACITY:
591 /* Mark associated FIB to not complete, eh handler does this */
592 for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
593 struct fib * fib = &aac->fibs[count];
594 if (fib->hw_fib_va->header.XferState &&
595 (fib->flags & FIB_CONTEXT_FLAG) &&
596 (fib->callback_data == cmd)) {
597 fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
598 cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
599 ret = SUCCESS;
600 }
601 }
602 break;
603 case TEST_UNIT_READY:
604 /* Mark associated FIB to not complete, eh handler does this */
605 for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
606 struct scsi_cmnd * command;
607 struct fib * fib = &aac->fibs[count];
608 if ((fib->hw_fib_va->header.XferState & cpu_to_le32(Async | NoResponseExpected)) &&
609 (fib->flags & FIB_CONTEXT_FLAG) &&
610 ((command = fib->callback_data)) &&
611 (command->device == cmd->device)) {
612 fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
613 command->SCp.phase = AAC_OWNER_ERROR_HANDLER;
614 if (command == cmd)
615 ret = SUCCESS;
616 }
617 }
618 }
619 return ret;
620 }
621
622 /*
623 * aac_eh_reset - Reset command handling
624 * @scsi_cmd: SCSI command block causing the reset
625 *
626 */
627 static int aac_eh_reset(struct scsi_cmnd* cmd)
628 {
629 struct scsi_device * dev = cmd->device;
630 struct Scsi_Host * host = dev->host;
631 struct scsi_cmnd * command;
632 int count;
633 struct aac_dev * aac = (struct aac_dev *)host->hostdata;
634 unsigned long flags;
635
636 /* Mark the associated FIB to not complete, eh handler does this */
637 for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
638 struct fib * fib = &aac->fibs[count];
639 if (fib->hw_fib_va->header.XferState &&
640 (fib->flags & FIB_CONTEXT_FLAG) &&
641 (fib->callback_data == cmd)) {
642 fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
643 cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
644 }
645 }
646 printk(KERN_ERR "%s: Host adapter reset request. SCSI hang ?\n",
647 AAC_DRIVERNAME);
648
649 if ((count = aac_check_health(aac)))
650 return count;
651 /*
652 * Wait for all commands to complete to this specific
653 * target (block maximum 60 seconds).
654 */
655 for (count = 60; count; --count) {
656 int active = aac->in_reset;
657
658 if (active == 0)
659 __shost_for_each_device(dev, host) {
660 spin_lock_irqsave(&dev->list_lock, flags);
661 list_for_each_entry(command, &dev->cmd_list, list) {
662 if ((command != cmd) &&
663 (command->SCp.phase == AAC_OWNER_FIRMWARE)) {
664 active++;
665 break;
666 }
667 }
668 spin_unlock_irqrestore(&dev->list_lock, flags);
669 if (active)
670 break;
671
672 }
673 /*
674 * We can exit If all the commands are complete
675 */
676 if (active == 0)
677 return SUCCESS;
678 ssleep(1);
679 }
680 printk(KERN_ERR "%s: SCSI bus appears hung\n", AAC_DRIVERNAME);
681 /*
682 * This adapter needs a blind reset, only do so for Adapters that
683 * support a register, instead of a commanded, reset.
684 */
685 if (((aac->supplement_adapter_info.SupportedOptions2 &
686 AAC_OPTION_MU_RESET) ||
687 (aac->supplement_adapter_info.SupportedOptions2 &
688 AAC_OPTION_DOORBELL_RESET)) &&
689 aac_check_reset &&
690 ((aac_check_reset != 1) ||
691 !(aac->supplement_adapter_info.SupportedOptions2 &
692 AAC_OPTION_IGNORE_RESET)))
693 aac_reset_adapter(aac, 2); /* Bypass wait for command quiesce */
694 return SUCCESS; /* Cause an immediate retry of the command with a ten second delay after successful tur */
695 }
696
697 /**
698 * aac_cfg_open - open a configuration file
699 * @inode: inode being opened
700 * @file: file handle attached
701 *
702 * Called when the configuration device is opened. Does the needed
703 * set up on the handle and then returns
704 *
705 * Bugs: This needs extending to check a given adapter is present
706 * so we can support hot plugging, and to ref count adapters.
707 */
708
709 static int aac_cfg_open(struct inode *inode, struct file *file)
710 {
711 struct aac_dev *aac;
712 unsigned minor_number = iminor(inode);
713 int err = -ENODEV;
714
715 mutex_lock(&aac_mutex); /* BKL pushdown: nothing else protects this list */
716 list_for_each_entry(aac, &aac_devices, entry) {
717 if (aac->id == minor_number) {
718 file->private_data = aac;
719 err = 0;
720 break;
721 }
722 }
723 mutex_unlock(&aac_mutex);
724
725 return err;
726 }
727
728 /**
729 * aac_cfg_ioctl - AAC configuration request
730 * @inode: inode of device
731 * @file: file handle
732 * @cmd: ioctl command code
733 * @arg: argument
734 *
735 * Handles a configuration ioctl. Currently this involves wrapping it
736 * up and feeding it into the nasty windowsalike glue layer.
737 *
738 * Bugs: Needs locking against parallel ioctls lower down
739 * Bugs: Needs to handle hot plugging
740 */
741
742 static long aac_cfg_ioctl(struct file *file,
743 unsigned int cmd, unsigned long arg)
744 {
745 struct aac_dev *aac = (struct aac_dev *)file->private_data;
746
747 if (!capable(CAP_SYS_RAWIO))
748 return -EPERM;
749
750 return aac_do_ioctl(aac, cmd, (void __user *)arg);
751 }
752
753 #ifdef CONFIG_COMPAT
754 static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long arg)
755 {
756 long ret;
757 switch (cmd) {
758 case FSACTL_MINIPORT_REV_CHECK:
759 case FSACTL_SENDFIB:
760 case FSACTL_OPEN_GET_ADAPTER_FIB:
761 case FSACTL_CLOSE_GET_ADAPTER_FIB:
762 case FSACTL_SEND_RAW_SRB:
763 case FSACTL_GET_PCI_INFO:
764 case FSACTL_QUERY_DISK:
765 case FSACTL_DELETE_DISK:
766 case FSACTL_FORCE_DELETE_DISK:
767 case FSACTL_GET_CONTAINERS:
768 case FSACTL_SEND_LARGE_FIB:
769 ret = aac_do_ioctl(dev, cmd, (void __user *)arg);
770 break;
771
772 case FSACTL_GET_NEXT_ADAPTER_FIB: {
773 struct fib_ioctl __user *f;
774
775 f = compat_alloc_user_space(sizeof(*f));
776 ret = 0;
777 if (clear_user(f, sizeof(*f)))
778 ret = -EFAULT;
779 if (copy_in_user(f, (void __user *)arg, sizeof(struct fib_ioctl) - sizeof(u32)))
780 ret = -EFAULT;
781 if (!ret)
782 ret = aac_do_ioctl(dev, cmd, f);
783 break;
784 }
785
786 default:
787 ret = -ENOIOCTLCMD;
788 break;
789 }
790 return ret;
791 }
792
793 static int aac_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
794 {
795 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
796 if (!capable(CAP_SYS_RAWIO))
797 return -EPERM;
798 return aac_compat_do_ioctl(dev, cmd, (unsigned long)arg);
799 }
800
801 static long aac_compat_cfg_ioctl(struct file *file, unsigned cmd, unsigned long arg)
802 {
803 if (!capable(CAP_SYS_RAWIO))
804 return -EPERM;
805 return aac_compat_do_ioctl(file->private_data, cmd, arg);
806 }
807 #endif
808
809 static ssize_t aac_show_model(struct device *device,
810 struct device_attribute *attr, char *buf)
811 {
812 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
813 int len;
814
815 if (dev->supplement_adapter_info.AdapterTypeText[0]) {
816 char * cp = dev->supplement_adapter_info.AdapterTypeText;
817 while (*cp && *cp != ' ')
818 ++cp;
819 while (*cp == ' ')
820 ++cp;
821 len = snprintf(buf, PAGE_SIZE, "%s\n", cp);
822 } else
823 len = snprintf(buf, PAGE_SIZE, "%s\n",
824 aac_drivers[dev->cardtype].model);
825 return len;
826 }
827
828 static ssize_t aac_show_vendor(struct device *device,
829 struct device_attribute *attr, char *buf)
830 {
831 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
832 int len;
833
834 if (dev->supplement_adapter_info.AdapterTypeText[0]) {
835 char * cp = dev->supplement_adapter_info.AdapterTypeText;
836 while (*cp && *cp != ' ')
837 ++cp;
838 len = snprintf(buf, PAGE_SIZE, "%.*s\n",
839 (int)(cp - (char *)dev->supplement_adapter_info.AdapterTypeText),
840 dev->supplement_adapter_info.AdapterTypeText);
841 } else
842 len = snprintf(buf, PAGE_SIZE, "%s\n",
843 aac_drivers[dev->cardtype].vname);
844 return len;
845 }
846
847 static ssize_t aac_show_flags(struct device *cdev,
848 struct device_attribute *attr, char *buf)
849 {
850 int len = 0;
851 struct aac_dev *dev = (struct aac_dev*)class_to_shost(cdev)->hostdata;
852
853 if (nblank(dprintk(x)))
854 len = snprintf(buf, PAGE_SIZE, "dprintk\n");
855 #ifdef AAC_DETAILED_STATUS_INFO
856 len += snprintf(buf + len, PAGE_SIZE - len,
857 "AAC_DETAILED_STATUS_INFO\n");
858 #endif
859 if (dev->raw_io_interface && dev->raw_io_64)
860 len += snprintf(buf + len, PAGE_SIZE - len,
861 "SAI_READ_CAPACITY_16\n");
862 if (dev->jbod)
863 len += snprintf(buf + len, PAGE_SIZE - len, "SUPPORTED_JBOD\n");
864 if (dev->supplement_adapter_info.SupportedOptions2 &
865 AAC_OPTION_POWER_MANAGEMENT)
866 len += snprintf(buf + len, PAGE_SIZE - len,
867 "SUPPORTED_POWER_MANAGEMENT\n");
868 if (dev->msi)
869 len += snprintf(buf + len, PAGE_SIZE - len, "PCI_HAS_MSI\n");
870 return len;
871 }
872
873 static ssize_t aac_show_kernel_version(struct device *device,
874 struct device_attribute *attr,
875 char *buf)
876 {
877 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
878 int len, tmp;
879
880 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
881 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
882 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
883 le32_to_cpu(dev->adapter_info.kernelbuild));
884 return len;
885 }
886
887 static ssize_t aac_show_monitor_version(struct device *device,
888 struct device_attribute *attr,
889 char *buf)
890 {
891 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
892 int len, tmp;
893
894 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
895 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
896 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
897 le32_to_cpu(dev->adapter_info.monitorbuild));
898 return len;
899 }
900
901 static ssize_t aac_show_bios_version(struct device *device,
902 struct device_attribute *attr,
903 char *buf)
904 {
905 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
906 int len, tmp;
907
908 tmp = le32_to_cpu(dev->adapter_info.biosrev);
909 len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
910 tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
911 le32_to_cpu(dev->adapter_info.biosbuild));
912 return len;
913 }
914
915 static ssize_t aac_show_serial_number(struct device *device,
916 struct device_attribute *attr, char *buf)
917 {
918 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
919 int len = 0;
920
921 if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
922 len = snprintf(buf, 16, "%06X\n",
923 le32_to_cpu(dev->adapter_info.serial[0]));
924 if (len &&
925 !memcmp(&dev->supplement_adapter_info.MfgPcbaSerialNo[
926 sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo)-len],
927 buf, len-1))
928 len = snprintf(buf, 16, "%.*s\n",
929 (int)sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo),
930 dev->supplement_adapter_info.MfgPcbaSerialNo);
931
932 return min(len, 16);
933 }
934
935 static ssize_t aac_show_max_channel(struct device *device,
936 struct device_attribute *attr, char *buf)
937 {
938 return snprintf(buf, PAGE_SIZE, "%d\n",
939 class_to_shost(device)->max_channel);
940 }
941
942 static ssize_t aac_show_max_id(struct device *device,
943 struct device_attribute *attr, char *buf)
944 {
945 return snprintf(buf, PAGE_SIZE, "%d\n",
946 class_to_shost(device)->max_id);
947 }
948
949 static ssize_t aac_store_reset_adapter(struct device *device,
950 struct device_attribute *attr,
951 const char *buf, size_t count)
952 {
953 int retval = -EACCES;
954
955 if (!capable(CAP_SYS_ADMIN))
956 return retval;
957 retval = aac_reset_adapter((struct aac_dev*)class_to_shost(device)->hostdata, buf[0] == '!');
958 if (retval >= 0)
959 retval = count;
960 return retval;
961 }
962
963 static ssize_t aac_show_reset_adapter(struct device *device,
964 struct device_attribute *attr,
965 char *buf)
966 {
967 struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
968 int len, tmp;
969
970 tmp = aac_adapter_check_health(dev);
971 if ((tmp == 0) && dev->in_reset)
972 tmp = -EBUSY;
973 len = snprintf(buf, PAGE_SIZE, "0x%x\n", tmp);
974 return len;
975 }
976
977 static struct device_attribute aac_model = {
978 .attr = {
979 .name = "model",
980 .mode = S_IRUGO,
981 },
982 .show = aac_show_model,
983 };
984 static struct device_attribute aac_vendor = {
985 .attr = {
986 .name = "vendor",
987 .mode = S_IRUGO,
988 },
989 .show = aac_show_vendor,
990 };
991 static struct device_attribute aac_flags = {
992 .attr = {
993 .name = "flags",
994 .mode = S_IRUGO,
995 },
996 .show = aac_show_flags,
997 };
998 static struct device_attribute aac_kernel_version = {
999 .attr = {
1000 .name = "hba_kernel_version",
1001 .mode = S_IRUGO,
1002 },
1003 .show = aac_show_kernel_version,
1004 };
1005 static struct device_attribute aac_monitor_version = {
1006 .attr = {
1007 .name = "hba_monitor_version",
1008 .mode = S_IRUGO,
1009 },
1010 .show = aac_show_monitor_version,
1011 };
1012 static struct device_attribute aac_bios_version = {
1013 .attr = {
1014 .name = "hba_bios_version",
1015 .mode = S_IRUGO,
1016 },
1017 .show = aac_show_bios_version,
1018 };
1019 static struct device_attribute aac_serial_number = {
1020 .attr = {
1021 .name = "serial_number",
1022 .mode = S_IRUGO,
1023 },
1024 .show = aac_show_serial_number,
1025 };
1026 static struct device_attribute aac_max_channel = {
1027 .attr = {
1028 .name = "max_channel",
1029 .mode = S_IRUGO,
1030 },
1031 .show = aac_show_max_channel,
1032 };
1033 static struct device_attribute aac_max_id = {
1034 .attr = {
1035 .name = "max_id",
1036 .mode = S_IRUGO,
1037 },
1038 .show = aac_show_max_id,
1039 };
1040 static struct device_attribute aac_reset = {
1041 .attr = {
1042 .name = "reset_host",
1043 .mode = S_IWUSR|S_IRUGO,
1044 },
1045 .store = aac_store_reset_adapter,
1046 .show = aac_show_reset_adapter,
1047 };
1048
1049 static struct device_attribute *aac_attrs[] = {
1050 &aac_model,
1051 &aac_vendor,
1052 &aac_flags,
1053 &aac_kernel_version,
1054 &aac_monitor_version,
1055 &aac_bios_version,
1056 &aac_serial_number,
1057 &aac_max_channel,
1058 &aac_max_id,
1059 &aac_reset,
1060 NULL
1061 };
1062
1063 ssize_t aac_get_serial_number(struct device *device, char *buf)
1064 {
1065 return aac_show_serial_number(device, &aac_serial_number, buf);
1066 }
1067
1068 static const struct file_operations aac_cfg_fops = {
1069 .owner = THIS_MODULE,
1070 .unlocked_ioctl = aac_cfg_ioctl,
1071 #ifdef CONFIG_COMPAT
1072 .compat_ioctl = aac_compat_cfg_ioctl,
1073 #endif
1074 .open = aac_cfg_open,
1075 .llseek = noop_llseek,
1076 };
1077
1078 static struct scsi_host_template aac_driver_template = {
1079 .module = THIS_MODULE,
1080 .name = "AAC",
1081 .proc_name = AAC_DRIVERNAME,
1082 .info = aac_info,
1083 .ioctl = aac_ioctl,
1084 #ifdef CONFIG_COMPAT
1085 .compat_ioctl = aac_compat_ioctl,
1086 #endif
1087 .queuecommand = aac_queuecommand,
1088 .bios_param = aac_biosparm,
1089 .shost_attrs = aac_attrs,
1090 .slave_configure = aac_slave_configure,
1091 .change_queue_depth = aac_change_queue_depth,
1092 .sdev_attrs = aac_dev_attrs,
1093 .eh_abort_handler = aac_eh_abort,
1094 .eh_host_reset_handler = aac_eh_reset,
1095 .can_queue = AAC_NUM_IO_FIB,
1096 .this_id = MAXIMUM_NUM_CONTAINERS,
1097 .sg_tablesize = 16,
1098 .max_sectors = 128,
1099 #if (AAC_NUM_IO_FIB > 256)
1100 .cmd_per_lun = 256,
1101 #else
1102 .cmd_per_lun = AAC_NUM_IO_FIB,
1103 #endif
1104 .use_clustering = ENABLE_CLUSTERING,
1105 .emulated = 1,
1106 .no_write_same = 1,
1107 };
1108
1109 static void __aac_shutdown(struct aac_dev * aac)
1110 {
1111 int i;
1112
1113 aac->adapter_shutdown = 1;
1114 aac_send_shutdown(aac);
1115
1116 if (aac->aif_thread) {
1117 int i;
1118 /* Clear out events first */
1119 for (i = 0; i < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); i++) {
1120 struct fib *fib = &aac->fibs[i];
1121 if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) &&
1122 (fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected)))
1123 up(&fib->event_wait);
1124 }
1125 kthread_stop(aac->thread);
1126 }
1127 aac_adapter_disable_int(aac);
1128 if (aac->pdev->device == PMC_DEVICE_S6 ||
1129 aac->pdev->device == PMC_DEVICE_S7 ||
1130 aac->pdev->device == PMC_DEVICE_S8 ||
1131 aac->pdev->device == PMC_DEVICE_S9) {
1132 if (aac->max_msix > 1) {
1133 for (i = 0; i < aac->max_msix; i++) {
1134 free_irq(pci_irq_vector(aac->pdev, i),
1135 &(aac->aac_msix[i]));
1136 }
1137 } else {
1138 free_irq(aac->pdev->irq,
1139 &(aac->aac_msix[0]));
1140 }
1141 } else {
1142 free_irq(aac->pdev->irq, aac);
1143 }
1144 if (aac->msi)
1145 pci_disable_msi(aac->pdev);
1146 else if (aac->max_msix > 1)
1147 pci_disable_msix(aac->pdev);
1148 }
1149 static void aac_init_char(void)
1150 {
1151 aac_cfg_major = register_chrdev(0, "aac", &aac_cfg_fops);
1152 if (aac_cfg_major < 0) {
1153 pr_err("aacraid: unable to register \"aac\" device.\n");
1154 }
1155 }
1156
1157 static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1158 {
1159 unsigned index = id->driver_data;
1160 struct Scsi_Host *shost;
1161 struct aac_dev *aac;
1162 struct list_head *insert = &aac_devices;
1163 int error = -ENODEV;
1164 int unique_id = 0;
1165 u64 dmamask;
1166 extern int aac_sync_mode;
1167
1168 /*
1169 * Only series 7 needs freset.
1170 */
1171 if (pdev->device == PMC_DEVICE_S7)
1172 pdev->needs_freset = 1;
1173
1174 list_for_each_entry(aac, &aac_devices, entry) {
1175 if (aac->id > unique_id)
1176 break;
1177 insert = &aac->entry;
1178 unique_id++;
1179 }
1180
1181 pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
1182 PCIE_LINK_STATE_CLKPM);
1183
1184 error = pci_enable_device(pdev);
1185 if (error)
1186 goto out;
1187 error = -ENODEV;
1188
1189 /*
1190 * If the quirk31 bit is set, the adapter needs adapter
1191 * to driver communication memory to be allocated below 2gig
1192 */
1193 if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
1194 dmamask = DMA_BIT_MASK(31);
1195 else
1196 dmamask = DMA_BIT_MASK(32);
1197
1198 if (pci_set_dma_mask(pdev, dmamask) ||
1199 pci_set_consistent_dma_mask(pdev, dmamask))
1200 goto out_disable_pdev;
1201
1202 pci_set_master(pdev);
1203
1204 shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
1205 if (!shost)
1206 goto out_disable_pdev;
1207
1208 shost->irq = pdev->irq;
1209 shost->unique_id = unique_id;
1210 shost->max_cmd_len = 16;
1211 shost->use_cmd_list = 1;
1212
1213 if (aac_cfg_major == AAC_CHARDEV_NEEDS_REINIT)
1214 aac_init_char();
1215
1216 aac = (struct aac_dev *)shost->hostdata;
1217 aac->base_start = pci_resource_start(pdev, 0);
1218 aac->scsi_host_ptr = shost;
1219 aac->pdev = pdev;
1220 aac->name = aac_driver_template.name;
1221 aac->id = shost->unique_id;
1222 aac->cardtype = index;
1223 INIT_LIST_HEAD(&aac->entry);
1224
1225 aac->fibs = kzalloc(sizeof(struct fib) * (shost->can_queue + AAC_NUM_MGT_FIB), GFP_KERNEL);
1226 if (!aac->fibs)
1227 goto out_free_host;
1228 spin_lock_init(&aac->fib_lock);
1229
1230 mutex_init(&aac->ioctl_mutex);
1231 /*
1232 * Map in the registers from the adapter.
1233 */
1234 aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
1235 if ((*aac_drivers[index].init)(aac))
1236 goto out_unmap;
1237
1238 if (aac->sync_mode) {
1239 if (aac_sync_mode)
1240 printk(KERN_INFO "%s%d: Sync. mode enforced "
1241 "by driver parameter. This will cause "
1242 "a significant performance decrease!\n",
1243 aac->name,
1244 aac->id);
1245 else
1246 printk(KERN_INFO "%s%d: Async. mode not supported "
1247 "by current driver, sync. mode enforced."
1248 "\nPlease update driver to get full performance.\n",
1249 aac->name,
1250 aac->id);
1251 }
1252
1253 /*
1254 * Start any kernel threads needed
1255 */
1256 aac->thread = kthread_run(aac_command_thread, aac, AAC_DRIVERNAME);
1257 if (IS_ERR(aac->thread)) {
1258 printk(KERN_ERR "aacraid: Unable to create command thread.\n");
1259 error = PTR_ERR(aac->thread);
1260 aac->thread = NULL;
1261 goto out_deinit;
1262 }
1263
1264 /*
1265 * If we had set a smaller DMA mask earlier, set it to 4gig
1266 * now since the adapter can dma data to at least a 4gig
1267 * address space.
1268 */
1269 if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
1270 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
1271 goto out_deinit;
1272
1273 aac->maximum_num_channels = aac_drivers[index].channels;
1274 error = aac_get_adapter_info(aac);
1275 if (error < 0)
1276 goto out_deinit;
1277
1278 /*
1279 * Lets override negotiations and drop the maximum SG limit to 34
1280 */
1281 if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) &&
1282 (shost->sg_tablesize > 34)) {
1283 shost->sg_tablesize = 34;
1284 shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1285 }
1286
1287 if ((aac_drivers[index].quirks & AAC_QUIRK_17SG) &&
1288 (shost->sg_tablesize > 17)) {
1289 shost->sg_tablesize = 17;
1290 shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1291 }
1292
1293 error = pci_set_dma_max_seg_size(pdev,
1294 (aac->adapter_info.options & AAC_OPT_NEW_COMM) ?
1295 (shost->max_sectors << 9) : 65536);
1296 if (error)
1297 goto out_deinit;
1298
1299 /*
1300 * Firmware printf works only with older firmware.
1301 */
1302 if (aac_drivers[index].quirks & AAC_QUIRK_34SG)
1303 aac->printf_enabled = 1;
1304 else
1305 aac->printf_enabled = 0;
1306
1307 /*
1308 * max channel will be the physical channels plus 1 virtual channel
1309 * all containers are on the virtual channel 0 (CONTAINER_CHANNEL)
1310 * physical channels are address by their actual physical number+1
1311 */
1312 if (aac->nondasd_support || expose_physicals || aac->jbod)
1313 shost->max_channel = aac->maximum_num_channels;
1314 else
1315 shost->max_channel = 0;
1316
1317 aac_get_config_status(aac, 0);
1318 aac_get_containers(aac);
1319 list_add(&aac->entry, insert);
1320
1321 shost->max_id = aac->maximum_num_containers;
1322 if (shost->max_id < aac->maximum_num_physicals)
1323 shost->max_id = aac->maximum_num_physicals;
1324 if (shost->max_id < MAXIMUM_NUM_CONTAINERS)
1325 shost->max_id = MAXIMUM_NUM_CONTAINERS;
1326 else
1327 shost->this_id = shost->max_id;
1328
1329 if (!aac->sa_firmware && aac_drivers[index].quirks & AAC_QUIRK_SRC)
1330 aac_intr_normal(aac, 0, 2, 0, NULL);
1331
1332 /*
1333 * dmb - we may need to move the setting of these parms somewhere else once
1334 * we get a fib that can report the actual numbers
1335 */
1336 shost->max_lun = AAC_MAX_LUN;
1337
1338 pci_set_drvdata(pdev, shost);
1339
1340 error = scsi_add_host(shost, &pdev->dev);
1341 if (error)
1342 goto out_deinit;
1343 scsi_scan_host(shost);
1344
1345 pci_enable_pcie_error_reporting(pdev);
1346 pci_save_state(pdev);
1347
1348 return 0;
1349
1350 out_deinit:
1351 __aac_shutdown(aac);
1352 out_unmap:
1353 aac_fib_map_free(aac);
1354 if (aac->comm_addr)
1355 pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
1356 aac->comm_phys);
1357 kfree(aac->queues);
1358 aac_adapter_ioremap(aac, 0);
1359 kfree(aac->fibs);
1360 kfree(aac->fsa_dev);
1361 out_free_host:
1362 scsi_host_put(shost);
1363 out_disable_pdev:
1364 pci_disable_device(pdev);
1365 out:
1366 return error;
1367 }
1368
1369 static void aac_release_resources(struct aac_dev *aac)
1370 {
1371 aac_adapter_disable_int(aac);
1372 aac_free_irq(aac);
1373 }
1374
1375 static int aac_acquire_resources(struct aac_dev *dev)
1376 {
1377 unsigned long status;
1378 /*
1379 * First clear out all interrupts. Then enable the one's that we
1380 * can handle.
1381 */
1382 while (!((status = src_readl(dev, MUnit.OMR)) & KERNEL_UP_AND_RUNNING)
1383 || status == 0xffffffff)
1384 msleep(20);
1385
1386 aac_adapter_disable_int(dev);
1387 aac_adapter_enable_int(dev);
1388
1389
1390 if ((dev->pdev->device == PMC_DEVICE_S7 ||
1391 dev->pdev->device == PMC_DEVICE_S8 ||
1392 dev->pdev->device == PMC_DEVICE_S9))
1393 aac_define_int_mode(dev);
1394
1395 if (dev->msi_enabled)
1396 aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
1397
1398 if (aac_acquire_irq(dev))
1399 goto error_iounmap;
1400
1401 aac_adapter_enable_int(dev);
1402
1403 /*max msix may change after EEH
1404 * Re-assign vectors to fibs
1405 */
1406 aac_fib_vector_assign(dev);
1407
1408 if (!dev->sync_mode) {
1409 /* After EEH recovery or suspend resume, max_msix count
1410 * may change, therfore updating in init as well.
1411 */
1412 dev->init->r7.no_of_msix_vectors = cpu_to_le32(dev->max_msix);
1413 aac_adapter_start(dev);
1414 }
1415 return 0;
1416
1417 error_iounmap:
1418 return -1;
1419
1420 }
1421
1422 #if (defined(CONFIG_PM))
1423 static int aac_suspend(struct pci_dev *pdev, pm_message_t state)
1424 {
1425
1426 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1427 struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1428
1429 scsi_block_requests(shost);
1430 aac_send_shutdown(aac);
1431
1432 aac_release_resources(aac);
1433
1434 pci_set_drvdata(pdev, shost);
1435 pci_save_state(pdev);
1436 pci_disable_device(pdev);
1437 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1438
1439 return 0;
1440 }
1441
1442 static int aac_resume(struct pci_dev *pdev)
1443 {
1444 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1445 struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1446 int r;
1447
1448 pci_set_power_state(pdev, PCI_D0);
1449 pci_enable_wake(pdev, PCI_D0, 0);
1450 pci_restore_state(pdev);
1451 r = pci_enable_device(pdev);
1452
1453 if (r)
1454 goto fail_device;
1455
1456 pci_set_master(pdev);
1457 if (aac_acquire_resources(aac))
1458 goto fail_device;
1459 /*
1460 * reset this flag to unblock ioctl() as it was set at
1461 * aac_send_shutdown() to block ioctls from upperlayer
1462 */
1463 aac->adapter_shutdown = 0;
1464 scsi_unblock_requests(shost);
1465
1466 return 0;
1467
1468 fail_device:
1469 printk(KERN_INFO "%s%d: resume failed.\n", aac->name, aac->id);
1470 scsi_host_put(shost);
1471 pci_disable_device(pdev);
1472 return -ENODEV;
1473 }
1474 #endif
1475
1476 static void aac_shutdown(struct pci_dev *dev)
1477 {
1478 struct Scsi_Host *shost = pci_get_drvdata(dev);
1479 scsi_block_requests(shost);
1480 __aac_shutdown((struct aac_dev *)shost->hostdata);
1481 }
1482
1483 static void aac_remove_one(struct pci_dev *pdev)
1484 {
1485 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1486 struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1487
1488 scsi_remove_host(shost);
1489
1490 __aac_shutdown(aac);
1491 aac_fib_map_free(aac);
1492 pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
1493 aac->comm_phys);
1494 kfree(aac->queues);
1495
1496 aac_adapter_ioremap(aac, 0);
1497
1498 kfree(aac->fibs);
1499 kfree(aac->fsa_dev);
1500
1501 list_del(&aac->entry);
1502 scsi_host_put(shost);
1503 pci_disable_device(pdev);
1504 if (list_empty(&aac_devices)) {
1505 unregister_chrdev(aac_cfg_major, "aac");
1506 aac_cfg_major = AAC_CHARDEV_NEEDS_REINIT;
1507 }
1508 }
1509
1510 static void aac_flush_ios(struct aac_dev *aac)
1511 {
1512 int i;
1513 struct scsi_cmnd *cmd;
1514
1515 for (i = 0; i < aac->scsi_host_ptr->can_queue; i++) {
1516 cmd = (struct scsi_cmnd *)aac->fibs[i].callback_data;
1517 if (cmd && (cmd->SCp.phase == AAC_OWNER_FIRMWARE)) {
1518 scsi_dma_unmap(cmd);
1519
1520 if (aac->handle_pci_error)
1521 cmd->result = DID_NO_CONNECT << 16;
1522 else
1523 cmd->result = DID_RESET << 16;
1524
1525 cmd->scsi_done(cmd);
1526 }
1527 }
1528 }
1529
1530 static pci_ers_result_t aac_pci_error_detected(struct pci_dev *pdev,
1531 enum pci_channel_state error)
1532 {
1533 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1534 struct aac_dev *aac = shost_priv(shost);
1535
1536 dev_err(&pdev->dev, "aacraid: PCI error detected %x\n", error);
1537
1538 switch (error) {
1539 case pci_channel_io_normal:
1540 return PCI_ERS_RESULT_CAN_RECOVER;
1541 case pci_channel_io_frozen:
1542 aac->handle_pci_error = 1;
1543
1544 scsi_block_requests(aac->scsi_host_ptr);
1545 aac_flush_ios(aac);
1546 aac_release_resources(aac);
1547
1548 pci_disable_pcie_error_reporting(pdev);
1549 aac_adapter_ioremap(aac, 0);
1550
1551 return PCI_ERS_RESULT_NEED_RESET;
1552 case pci_channel_io_perm_failure:
1553 aac->handle_pci_error = 1;
1554
1555 aac_flush_ios(aac);
1556 return PCI_ERS_RESULT_DISCONNECT;
1557 }
1558
1559 return PCI_ERS_RESULT_NEED_RESET;
1560 }
1561
1562 static pci_ers_result_t aac_pci_mmio_enabled(struct pci_dev *pdev)
1563 {
1564 dev_err(&pdev->dev, "aacraid: PCI error - mmio enabled\n");
1565 return PCI_ERS_RESULT_NEED_RESET;
1566 }
1567
1568 static pci_ers_result_t aac_pci_slot_reset(struct pci_dev *pdev)
1569 {
1570 dev_err(&pdev->dev, "aacraid: PCI error - slot reset\n");
1571 pci_restore_state(pdev);
1572 if (pci_enable_device(pdev)) {
1573 dev_warn(&pdev->dev,
1574 "aacraid: failed to enable slave\n");
1575 goto fail_device;
1576 }
1577
1578 pci_set_master(pdev);
1579
1580 if (pci_enable_device_mem(pdev)) {
1581 dev_err(&pdev->dev, "pci_enable_device_mem failed\n");
1582 goto fail_device;
1583 }
1584
1585 return PCI_ERS_RESULT_RECOVERED;
1586
1587 fail_device:
1588 dev_err(&pdev->dev, "aacraid: PCI error - slot reset failed\n");
1589 return PCI_ERS_RESULT_DISCONNECT;
1590 }
1591
1592
1593 static void aac_pci_resume(struct pci_dev *pdev)
1594 {
1595 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1596 struct scsi_device *sdev = NULL;
1597 struct aac_dev *aac = (struct aac_dev *)shost_priv(shost);
1598
1599 pci_cleanup_aer_uncorrect_error_status(pdev);
1600
1601 if (aac_adapter_ioremap(aac, aac->base_size)) {
1602
1603 dev_err(&pdev->dev, "aacraid: ioremap failed\n");
1604 /* remap failed, go back ... */
1605 aac->comm_interface = AAC_COMM_PRODUCER;
1606 if (aac_adapter_ioremap(aac, AAC_MIN_FOOTPRINT_SIZE)) {
1607 dev_warn(&pdev->dev,
1608 "aacraid: unable to map adapter.\n");
1609
1610 return;
1611 }
1612 }
1613
1614 msleep(10000);
1615
1616 aac_acquire_resources(aac);
1617
1618 /*
1619 * reset this flag to unblock ioctl() as it was set
1620 * at aac_send_shutdown() to block ioctls from upperlayer
1621 */
1622 aac->adapter_shutdown = 0;
1623 aac->handle_pci_error = 0;
1624
1625 shost_for_each_device(sdev, shost)
1626 if (sdev->sdev_state == SDEV_OFFLINE)
1627 sdev->sdev_state = SDEV_RUNNING;
1628 scsi_unblock_requests(aac->scsi_host_ptr);
1629 scsi_scan_host(aac->scsi_host_ptr);
1630 pci_save_state(pdev);
1631
1632 dev_err(&pdev->dev, "aacraid: PCI error - resume\n");
1633 }
1634
1635 static struct pci_error_handlers aac_pci_err_handler = {
1636 .error_detected = aac_pci_error_detected,
1637 .mmio_enabled = aac_pci_mmio_enabled,
1638 .slot_reset = aac_pci_slot_reset,
1639 .resume = aac_pci_resume,
1640 };
1641
1642 static struct pci_driver aac_pci_driver = {
1643 .name = AAC_DRIVERNAME,
1644 .id_table = aac_pci_tbl,
1645 .probe = aac_probe_one,
1646 .remove = aac_remove_one,
1647 #if (defined(CONFIG_PM))
1648 .suspend = aac_suspend,
1649 .resume = aac_resume,
1650 #endif
1651 .shutdown = aac_shutdown,
1652 .err_handler = &aac_pci_err_handler,
1653 };
1654
1655 static int __init aac_init(void)
1656 {
1657 int error;
1658
1659 printk(KERN_INFO "Adaptec %s driver %s\n",
1660 AAC_DRIVERNAME, aac_driver_version);
1661
1662 error = pci_register_driver(&aac_pci_driver);
1663 if (error < 0)
1664 return error;
1665
1666 aac_init_char();
1667
1668
1669 return 0;
1670 }
1671
1672 static void __exit aac_exit(void)
1673 {
1674 if (aac_cfg_major > -1)
1675 unregister_chrdev(aac_cfg_major, "aac");
1676 pci_unregister_driver(&aac_pci_driver);
1677 }
1678
1679 module_init(aac_init);
1680 module_exit(aac_exit);
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