xref: /linux/drivers/scsi/aacraid/linit.c (revision 06d07429858317ded2db7986113a9e0129cd599b)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *	Adaptec AAC series RAID controller driver
4  *	(c) Copyright 2001 Red Hat Inc.
5  *
6  * based on the old aacraid driver that is..
7  * Adaptec aacraid device driver for Linux.
8  *
9  * Copyright (c) 2000-2010 Adaptec, Inc.
10  *               2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
11  *		 2016-2017 Microsemi Corp. (aacraid@microsemi.com)
12  *
13  * Module Name:
14  *   linit.c
15  *
16  * Abstract: Linux Driver entry module for Adaptec RAID Array Controller
17  */
18 
19 
20 #include <linux/compat.h>
21 #include <linux/blkdev.h>
22 #include <linux/completion.h>
23 #include <linux/init.h>
24 #include <linux/interrupt.h>
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/moduleparam.h>
28 #include <linux/pci.h>
29 #include <linux/slab.h>
30 #include <linux/mutex.h>
31 #include <linux/spinlock.h>
32 #include <linux/syscalls.h>
33 #include <linux/delay.h>
34 #include <linux/kthread.h>
35 #include <linux/msdos_partition.h>
36 
37 #include <scsi/scsi.h>
38 #include <scsi/scsi_cmnd.h>
39 #include <scsi/scsi_device.h>
40 #include <scsi/scsi_host.h>
41 #include <scsi/scsi_tcq.h>
42 #include <scsi/scsicam.h>
43 #include <scsi/scsi_eh.h>
44 
45 #include "aacraid.h"
46 
47 #define AAC_DRIVER_VERSION		"1.2.1"
48 #ifndef AAC_DRIVER_BRANCH
49 #define AAC_DRIVER_BRANCH		""
50 #endif
51 #define AAC_DRIVERNAME			"aacraid"
52 
53 #ifdef AAC_DRIVER_BUILD
54 #define _str(x) #x
55 #define str(x) _str(x)
56 #define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION "[" str(AAC_DRIVER_BUILD) "]" AAC_DRIVER_BRANCH
57 #else
58 #define AAC_DRIVER_FULL_VERSION	AAC_DRIVER_VERSION AAC_DRIVER_BRANCH
59 #endif
60 
61 MODULE_AUTHOR("Red Hat Inc and Adaptec");
62 MODULE_DESCRIPTION("Dell PERC2, 2/Si, 3/Si, 3/Di, "
63 		   "Adaptec Advanced Raid Products, "
64 		   "HP NetRAID-4M, IBM ServeRAID & ICP SCSI driver");
65 MODULE_LICENSE("GPL");
66 MODULE_VERSION(AAC_DRIVER_FULL_VERSION);
67 
68 static DEFINE_MUTEX(aac_mutex);
69 static LIST_HEAD(aac_devices);
70 static int aac_cfg_major = AAC_CHARDEV_UNREGISTERED;
71 char aac_driver_version[] = AAC_DRIVER_FULL_VERSION;
72 
73 /*
74  * Because of the way Linux names scsi devices, the order in this table has
75  * become important.  Check for on-board Raid first, add-in cards second.
76  *
77  * Note: The last field is used to index into aac_drivers below.
78  */
79 static const struct pci_device_id aac_pci_tbl[] = {
80 	{ 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */
81 	{ 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */
82 	{ 0x1028, 0x0003, 0x1028, 0x0003, 0, 0, 2 }, /* PERC 3/Si (SlimFast/PERC3Si */
83 	{ 0x1028, 0x0004, 0x1028, 0x00d0, 0, 0, 3 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
84 	{ 0x1028, 0x0002, 0x1028, 0x00d1, 0, 0, 4 }, /* PERC 3/Di (Viper/PERC3DiV) */
85 	{ 0x1028, 0x0002, 0x1028, 0x00d9, 0, 0, 5 }, /* PERC 3/Di (Lexus/PERC3DiL) */
86 	{ 0x1028, 0x000a, 0x1028, 0x0106, 0, 0, 6 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
87 	{ 0x1028, 0x000a, 0x1028, 0x011b, 0, 0, 7 }, /* PERC 3/Di (Dagger/PERC3DiD) */
88 	{ 0x1028, 0x000a, 0x1028, 0x0121, 0, 0, 8 }, /* PERC 3/Di (Boxster/PERC3DiB) */
89 	{ 0x9005, 0x0283, 0x9005, 0x0283, 0, 0, 9 }, /* catapult */
90 	{ 0x9005, 0x0284, 0x9005, 0x0284, 0, 0, 10 }, /* tomcat */
91 	{ 0x9005, 0x0285, 0x9005, 0x0286, 0, 0, 11 }, /* Adaptec 2120S (Crusader) */
92 	{ 0x9005, 0x0285, 0x9005, 0x0285, 0, 0, 12 }, /* Adaptec 2200S (Vulcan) */
93 	{ 0x9005, 0x0285, 0x9005, 0x0287, 0, 0, 13 }, /* Adaptec 2200S (Vulcan-2m) */
94 	{ 0x9005, 0x0285, 0x17aa, 0x0286, 0, 0, 14 }, /* Legend S220 (Legend Crusader) */
95 	{ 0x9005, 0x0285, 0x17aa, 0x0287, 0, 0, 15 }, /* Legend S230 (Legend Vulcan) */
96 
97 	{ 0x9005, 0x0285, 0x9005, 0x0288, 0, 0, 16 }, /* Adaptec 3230S (Harrier) */
98 	{ 0x9005, 0x0285, 0x9005, 0x0289, 0, 0, 17 }, /* Adaptec 3240S (Tornado) */
99 	{ 0x9005, 0x0285, 0x9005, 0x028a, 0, 0, 18 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
100 	{ 0x9005, 0x0285, 0x9005, 0x028b, 0, 0, 19 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
101 	{ 0x9005, 0x0286, 0x9005, 0x028c, 0, 0, 20 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
102 	{ 0x9005, 0x0286, 0x9005, 0x028d, 0, 0, 21 }, /* ASR-2130S (Lancer) */
103 	{ 0x9005, 0x0286, 0x9005, 0x029b, 0, 0, 22 }, /* AAR-2820SA (Intruder) */
104 	{ 0x9005, 0x0286, 0x9005, 0x029c, 0, 0, 23 }, /* AAR-2620SA (Intruder) */
105 	{ 0x9005, 0x0286, 0x9005, 0x029d, 0, 0, 24 }, /* AAR-2420SA (Intruder) */
106 	{ 0x9005, 0x0286, 0x9005, 0x029e, 0, 0, 25 }, /* ICP9024RO (Lancer) */
107 	{ 0x9005, 0x0286, 0x9005, 0x029f, 0, 0, 26 }, /* ICP9014RO (Lancer) */
108 	{ 0x9005, 0x0286, 0x9005, 0x02a0, 0, 0, 27 }, /* ICP9047MA (Lancer) */
109 	{ 0x9005, 0x0286, 0x9005, 0x02a1, 0, 0, 28 }, /* ICP9087MA (Lancer) */
110 	{ 0x9005, 0x0286, 0x9005, 0x02a3, 0, 0, 29 }, /* ICP5445AU (Hurricane44) */
111 	{ 0x9005, 0x0285, 0x9005, 0x02a4, 0, 0, 30 }, /* ICP9085LI (Marauder-X) */
112 	{ 0x9005, 0x0285, 0x9005, 0x02a5, 0, 0, 31 }, /* ICP5085BR (Marauder-E) */
113 	{ 0x9005, 0x0286, 0x9005, 0x02a6, 0, 0, 32 }, /* ICP9067MA (Intruder-6) */
114 	{ 0x9005, 0x0287, 0x9005, 0x0800, 0, 0, 33 }, /* Themisto Jupiter Platform */
115 	{ 0x9005, 0x0200, 0x9005, 0x0200, 0, 0, 33 }, /* Themisto Jupiter Platform */
116 	{ 0x9005, 0x0286, 0x9005, 0x0800, 0, 0, 34 }, /* Callisto Jupiter Platform */
117 	{ 0x9005, 0x0285, 0x9005, 0x028e, 0, 0, 35 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
118 	{ 0x9005, 0x0285, 0x9005, 0x028f, 0, 0, 36 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
119 	{ 0x9005, 0x0285, 0x9005, 0x0290, 0, 0, 37 }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
120 	{ 0x9005, 0x0285, 0x1028, 0x0291, 0, 0, 38 }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
121 	{ 0x9005, 0x0285, 0x9005, 0x0292, 0, 0, 39 }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
122 	{ 0x9005, 0x0285, 0x9005, 0x0293, 0, 0, 40 }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
123 	{ 0x9005, 0x0285, 0x9005, 0x0294, 0, 0, 41 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
124 	{ 0x9005, 0x0285, 0x103C, 0x3227, 0, 0, 42 }, /* AAR-2610SA PCI SATA 6ch */
125 	{ 0x9005, 0x0285, 0x9005, 0x0296, 0, 0, 43 }, /* ASR-2240S (SabreExpress) */
126 	{ 0x9005, 0x0285, 0x9005, 0x0297, 0, 0, 44 }, /* ASR-4005 */
127 	{ 0x9005, 0x0285, 0x1014, 0x02F2, 0, 0, 45 }, /* IBM 8i (AvonPark) */
128 	{ 0x9005, 0x0285, 0x1014, 0x0312, 0, 0, 45 }, /* IBM 8i (AvonPark Lite) */
129 	{ 0x9005, 0x0286, 0x1014, 0x9580, 0, 0, 46 }, /* IBM 8k/8k-l8 (Aurora) */
130 	{ 0x9005, 0x0286, 0x1014, 0x9540, 0, 0, 47 }, /* IBM 8k/8k-l4 (Aurora Lite) */
131 	{ 0x9005, 0x0285, 0x9005, 0x0298, 0, 0, 48 }, /* ASR-4000 (BlackBird) */
132 	{ 0x9005, 0x0285, 0x9005, 0x0299, 0, 0, 49 }, /* ASR-4800SAS (Marauder-X) */
133 	{ 0x9005, 0x0285, 0x9005, 0x029a, 0, 0, 50 }, /* ASR-4805SAS (Marauder-E) */
134 	{ 0x9005, 0x0286, 0x9005, 0x02a2, 0, 0, 51 }, /* ASR-3800 (Hurricane44) */
135 
136 	{ 0x9005, 0x0285, 0x1028, 0x0287, 0, 0, 52 }, /* Perc 320/DC*/
137 	{ 0x1011, 0x0046, 0x9005, 0x0365, 0, 0, 53 }, /* Adaptec 5400S (Mustang)*/
138 	{ 0x1011, 0x0046, 0x9005, 0x0364, 0, 0, 54 }, /* Adaptec 5400S (Mustang)*/
139 	{ 0x1011, 0x0046, 0x9005, 0x1364, 0, 0, 55 }, /* Dell PERC2/QC */
140 	{ 0x1011, 0x0046, 0x103c, 0x10c2, 0, 0, 56 }, /* HP NetRAID-4M */
141 
142 	{ 0x9005, 0x0285, 0x1028, PCI_ANY_ID, 0, 0, 57 }, /* Dell Catchall */
143 	{ 0x9005, 0x0285, 0x17aa, PCI_ANY_ID, 0, 0, 58 }, /* Legend Catchall */
144 	{ 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */
145 	{ 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */
146 	{ 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */
147 	{ 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Series 6 (Tupelo) */
148 	{ 0x9005, 0x028c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 63 }, /* Adaptec PMC Series 7 (Denali) */
149 	{ 0x9005, 0x028d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 64 }, /* Adaptec PMC Series 8 */
150 	{ 0,}
151 };
152 MODULE_DEVICE_TABLE(pci, aac_pci_tbl);
153 
154 /*
155  * dmb - For now we add the number of channels to this structure.
156  * In the future we should add a fib that reports the number of channels
157  * for the card.  At that time we can remove the channels from here
158  */
159 static struct aac_driver_ident aac_drivers[] = {
160 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 2/Si (Iguana/PERC2Si) */
161 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Opal/PERC3Di) */
162 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Si (SlimFast/PERC3Si */
163 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
164 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Viper/PERC3DiV) */
165 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Lexus/PERC3DiL) */
166 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
167 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Dagger/PERC3DiD) */
168 	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Boxster/PERC3DiB) */
169 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "catapult        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* catapult */
170 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "tomcat          ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* tomcat */
171 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2120S   ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG },		      /* Adaptec 2120S (Crusader) */
172 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG },		      /* Adaptec 2200S (Vulcan) */
173 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2200S (Vulcan-2m) */
174 	{ aac_rx_init, "aacraid",  "Legend  ", "Legend S220     ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S220 (Legend Crusader) */
175 	{ aac_rx_init, "aacraid",  "Legend  ", "Legend S230     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S230 (Legend Vulcan) */
176 
177 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 3230S   ", 2 }, /* Adaptec 3230S (Harrier) */
178 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 3240S   ", 2 }, /* Adaptec 3240S (Tornado) */
179 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2020ZCR     ", 2 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
180 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2025ZCR     ", 2 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
181 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "ASR-2230S PCI-X ", 2 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
182 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "ASR-2130S PCI-X ", 1 }, /* ASR-2130S (Lancer) */
183 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "AAR-2820SA      ", 1 }, /* AAR-2820SA (Intruder) */
184 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "AAR-2620SA      ", 1 }, /* AAR-2620SA (Intruder) */
185 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "AAR-2420SA      ", 1 }, /* AAR-2420SA (Intruder) */
186 	{ aac_rkt_init, "aacraid",  "ICP     ", "ICP9024RO       ", 2 }, /* ICP9024RO (Lancer) */
187 	{ aac_rkt_init, "aacraid",  "ICP     ", "ICP9014RO       ", 1 }, /* ICP9014RO (Lancer) */
188 	{ aac_rkt_init, "aacraid",  "ICP     ", "ICP9047MA       ", 1 }, /* ICP9047MA (Lancer) */
189 	{ aac_rkt_init, "aacraid",  "ICP     ", "ICP9087MA       ", 1 }, /* ICP9087MA (Lancer) */
190 	{ aac_rkt_init, "aacraid",  "ICP     ", "ICP5445AU       ", 1 }, /* ICP5445AU (Hurricane44) */
191 	{ aac_rx_init, "aacraid",  "ICP     ", "ICP9085LI       ", 1 }, /* ICP9085LI (Marauder-X) */
192 	{ aac_rx_init, "aacraid",  "ICP     ", "ICP5085BR       ", 1 }, /* ICP5085BR (Marauder-E) */
193 	{ aac_rkt_init, "aacraid",  "ICP     ", "ICP9067MA       ", 1 }, /* ICP9067MA (Intruder-6) */
194 	{ NULL        , "aacraid",  "ADAPTEC ", "Themisto        ", 0, AAC_QUIRK_SLAVE }, /* Jupiter Platform */
195 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "Callisto        ", 2, AAC_QUIRK_MASTER }, /* Jupiter Platform */
196 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2020SA       ", 1 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
197 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2025SA       ", 1 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
198 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2410SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
199 	{ aac_rx_init, "aacraid",  "DELL    ", "CERC SR2        ", 1, AAC_QUIRK_17SG }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
200 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2810SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
201 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-21610SA SATA", 1, AAC_QUIRK_17SG }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
202 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2026ZCR     ", 1 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
203 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2610SA      ", 1 }, /* SATA 6Ch (Bearcat) */
204 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2240S       ", 1 }, /* ASR-2240S (SabreExpress) */
205 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4005        ", 1 }, /* ASR-4005 */
206 	{ aac_rx_init, "ServeRAID","IBM     ", "ServeRAID 8i    ", 1 }, /* IBM 8i (AvonPark) */
207 	{ aac_rkt_init, "ServeRAID","IBM     ", "ServeRAID 8k-l8 ", 1 }, /* IBM 8k/8k-l8 (Aurora) */
208 	{ aac_rkt_init, "ServeRAID","IBM     ", "ServeRAID 8k-l4 ", 1 }, /* IBM 8k/8k-l4 (Aurora Lite) */
209 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4000        ", 1 }, /* ASR-4000 (BlackBird & AvonPark) */
210 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4800SAS     ", 1 }, /* ASR-4800SAS (Marauder-X) */
211 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4805SAS     ", 1 }, /* ASR-4805SAS (Marauder-E) */
212 	{ aac_rkt_init, "aacraid",  "ADAPTEC ", "ASR-3800        ", 1 }, /* ASR-3800 (Hurricane44) */
213 
214 	{ aac_rx_init, "percraid", "DELL    ", "PERC 320/DC     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Perc 320/DC*/
215 	{ aac_sa_init, "aacraid",  "ADAPTEC ", "Adaptec 5400S   ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
216 	{ aac_sa_init, "aacraid",  "ADAPTEC ", "AAC-364         ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
217 	{ aac_sa_init, "percraid", "DELL    ", "PERCRAID        ", 4, AAC_QUIRK_34SG }, /* Dell PERC2/QC */
218 	{ aac_sa_init, "hpnraid",  "HP      ", "NetRAID         ", 4, AAC_QUIRK_34SG }, /* HP NetRAID-4M */
219 
220 	{ aac_rx_init, "aacraid",  "DELL    ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Dell Catchall */
221 	{ aac_rx_init, "aacraid",  "Legend  ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend Catchall */
222 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Catch All */
223 	{ aac_rkt_init, "aacraid", "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Rocket Catch All */
224 	{ aac_nark_init, "aacraid", "ADAPTEC ", "RAID           ", 2 }, /* Adaptec NEMER/ARK Catch All */
225 	{ aac_src_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 6 (Tupelo) */
226 	{ aac_srcv_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 7 (Denali) */
227 	{ aac_srcv_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 8 */
228 };
229 
230 /**
231  *	aac_queuecommand	-	queue a SCSI command
232  *	@shost:		Scsi host to queue command on
233  *	@cmd:		SCSI command to queue
234  *
235  *	Queues a command for execution by the associated Host Adapter.
236  *
237  *	TODO: unify with aac_scsi_cmd().
238  */
239 
aac_queuecommand(struct Scsi_Host * shost,struct scsi_cmnd * cmd)240 static int aac_queuecommand(struct Scsi_Host *shost,
241 			    struct scsi_cmnd *cmd)
242 {
243 	aac_priv(cmd)->owner = AAC_OWNER_LOWLEVEL;
244 
245 	return aac_scsi_cmd(cmd) ? FAILED : 0;
246 }
247 
248 /**
249  *	aac_info		-	Returns the host adapter name
250  *	@shost:		Scsi host to report on
251  *
252  *	Returns a static string describing the device in question
253  */
254 
aac_info(struct Scsi_Host * shost)255 static const char *aac_info(struct Scsi_Host *shost)
256 {
257 	struct aac_dev *dev = (struct aac_dev *)shost->hostdata;
258 	return aac_drivers[dev->cardtype].name;
259 }
260 
261 /**
262  *	aac_get_driver_ident
263  *	@devtype: index into lookup table
264  *
265  *	Returns a pointer to the entry in the driver lookup table.
266  */
267 
aac_get_driver_ident(int devtype)268 struct aac_driver_ident* aac_get_driver_ident(int devtype)
269 {
270 	return &aac_drivers[devtype];
271 }
272 
273 /**
274  *	aac_biosparm	-	return BIOS parameters for disk
275  *	@sdev: The scsi device corresponding to the disk
276  *	@bdev: the block device corresponding to the disk
277  *	@capacity: the sector capacity of the disk
278  *	@geom: geometry block to fill in
279  *
280  *	Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk.
281  *	The default disk geometry is 64 heads, 32 sectors, and the appropriate
282  *	number of cylinders so as not to exceed drive capacity.  In order for
283  *	disks equal to or larger than 1 GB to be addressable by the BIOS
284  *	without exceeding the BIOS limitation of 1024 cylinders, Extended
285  *	Translation should be enabled.   With Extended Translation enabled,
286  *	drives between 1 GB inclusive and 2 GB exclusive are given a disk
287  *	geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive
288  *	are given a disk geometry of 255 heads and 63 sectors.  However, if
289  *	the BIOS detects that the Extended Translation setting does not match
290  *	the geometry in the partition table, then the translation inferred
291  *	from the partition table will be used by the BIOS, and a warning may
292  *	be displayed.
293  */
294 
aac_biosparm(struct scsi_device * sdev,struct block_device * bdev,sector_t capacity,int * geom)295 static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
296 			sector_t capacity, int *geom)
297 {
298 	struct diskparm *param = (struct diskparm *)geom;
299 	unsigned char *buf;
300 
301 	dprintk((KERN_DEBUG "aac_biosparm.\n"));
302 
303 	/*
304 	 *	Assuming extended translation is enabled - #REVISIT#
305 	 */
306 	if (capacity >= 2 * 1024 * 1024) { /* 1 GB in 512 byte sectors */
307 		if(capacity >= 4 * 1024 * 1024) { /* 2 GB in 512 byte sectors */
308 			param->heads = 255;
309 			param->sectors = 63;
310 		} else {
311 			param->heads = 128;
312 			param->sectors = 32;
313 		}
314 	} else {
315 		param->heads = 64;
316 		param->sectors = 32;
317 	}
318 
319 	param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
320 
321 	/*
322 	 *	Read the first 1024 bytes from the disk device, if the boot
323 	 *	sector partition table is valid, search for a partition table
324 	 *	entry whose end_head matches one of the standard geometry
325 	 *	translations ( 64/32, 128/32, 255/63 ).
326 	 */
327 	buf = scsi_bios_ptable(bdev);
328 	if (!buf)
329 		return 0;
330 	if (*(__le16 *)(buf + 0x40) == cpu_to_le16(MSDOS_LABEL_MAGIC)) {
331 		struct msdos_partition *first = (struct msdos_partition *)buf;
332 		struct msdos_partition *entry = first;
333 		int saved_cylinders = param->cylinders;
334 		int num;
335 		unsigned char end_head, end_sec;
336 
337 		for(num = 0; num < 4; num++) {
338 			end_head = entry->end_head;
339 			end_sec = entry->end_sector & 0x3f;
340 
341 			if(end_head == 63) {
342 				param->heads = 64;
343 				param->sectors = 32;
344 				break;
345 			} else if(end_head == 127) {
346 				param->heads = 128;
347 				param->sectors = 32;
348 				break;
349 			} else if(end_head == 254) {
350 				param->heads = 255;
351 				param->sectors = 63;
352 				break;
353 			}
354 			entry++;
355 		}
356 
357 		if (num == 4) {
358 			end_head = first->end_head;
359 			end_sec = first->end_sector & 0x3f;
360 		}
361 
362 		param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
363 		if (num < 4 && end_sec == param->sectors) {
364 			if (param->cylinders != saved_cylinders) {
365 				dprintk((KERN_DEBUG "Adopting geometry: heads=%d, sectors=%d from partition table %d.\n",
366 					param->heads, param->sectors, num));
367 			}
368 		} else if (end_head > 0 || end_sec > 0) {
369 			dprintk((KERN_DEBUG "Strange geometry: heads=%d, sectors=%d in partition table %d.\n",
370 				end_head + 1, end_sec, num));
371 			dprintk((KERN_DEBUG "Using geometry: heads=%d, sectors=%d.\n",
372 					param->heads, param->sectors));
373 		}
374 	}
375 	kfree(buf);
376 	return 0;
377 }
378 
379 /**
380  *	aac_slave_configure		-	compute queue depths
381  *	@sdev:	SCSI device we are considering
382  *
383  *	Selects queue depths for each target device based on the host adapter's
384  *	total capacity and the queue depth supported by the target device.
385  *	A queue depth of one automatically disables tagged queueing.
386  */
387 
aac_slave_configure(struct scsi_device * sdev)388 static int aac_slave_configure(struct scsi_device *sdev)
389 {
390 	struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
391 	int chn, tid;
392 	unsigned int depth = 0;
393 	unsigned int set_timeout = 0;
394 	int timeout = 0;
395 	bool set_qd_dev_type = false;
396 	u8 devtype = 0;
397 
398 	chn = aac_logical_to_phys(sdev_channel(sdev));
399 	tid = sdev_id(sdev);
400 	if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS && aac->sa_firmware) {
401 		devtype = aac->hba_map[chn][tid].devtype;
402 
403 		if (devtype == AAC_DEVTYPE_NATIVE_RAW) {
404 			depth = aac->hba_map[chn][tid].qd_limit;
405 			set_timeout = 1;
406 			goto common_config;
407 		}
408 		if (devtype == AAC_DEVTYPE_ARC_RAW) {
409 			set_qd_dev_type = true;
410 			set_timeout = 1;
411 			goto common_config;
412 		}
413 	}
414 
415 	if (aac->jbod && (sdev->type == TYPE_DISK))
416 		sdev->removable = 1;
417 
418 	if (sdev->type == TYPE_DISK
419 	 && sdev_channel(sdev) != CONTAINER_CHANNEL
420 	 && (!aac->jbod || sdev->inq_periph_qual)
421 	 && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))) {
422 
423 		if (expose_physicals == 0)
424 			return -ENXIO;
425 
426 		if (expose_physicals < 0)
427 			sdev->no_uld_attach = 1;
428 	}
429 
430 	if (sdev->tagged_supported
431 	 &&  sdev->type == TYPE_DISK
432 	 &&  (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
433 	 && !sdev->no_uld_attach) {
434 
435 		struct scsi_device * dev;
436 		struct Scsi_Host *host = sdev->host;
437 		unsigned num_lsu = 0;
438 		unsigned num_one = 0;
439 		unsigned cid;
440 
441 		set_timeout = 1;
442 
443 		for (cid = 0; cid < aac->maximum_num_containers; ++cid)
444 			if (aac->fsa_dev[cid].valid)
445 				++num_lsu;
446 
447 		__shost_for_each_device(dev, host) {
448 			if (dev->tagged_supported
449 			 && dev->type == TYPE_DISK
450 			 && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
451 			 && !dev->no_uld_attach) {
452 				if ((sdev_channel(dev) != CONTAINER_CHANNEL)
453 				 || !aac->fsa_dev[sdev_id(dev)].valid) {
454 					++num_lsu;
455 				}
456 			} else {
457 				++num_one;
458 			}
459 		}
460 
461 		if (num_lsu == 0)
462 			++num_lsu;
463 
464 		depth = (host->can_queue - num_one) / num_lsu;
465 
466 		if (sdev_channel(sdev) != NATIVE_CHANNEL)
467 			goto common_config;
468 
469 		set_qd_dev_type = true;
470 
471 	}
472 
473 common_config:
474 
475 	/*
476 	 * Check if SATA drive
477 	 */
478 	if (set_qd_dev_type) {
479 		if (strncmp(sdev->vendor, "ATA", 3) == 0)
480 			depth = 32;
481 		else
482 			depth = 64;
483 	}
484 
485 	/*
486 	 * Firmware has an individual device recovery time typically
487 	 * of 35 seconds, give us a margin. Thor devices can take longer in
488 	 * error recovery, hence different value.
489 	 */
490 	if (set_timeout) {
491 		timeout = aac->sa_firmware ? AAC_SA_TIMEOUT : AAC_ARC_TIMEOUT;
492 		blk_queue_rq_timeout(sdev->request_queue, timeout * HZ);
493 	}
494 
495 	if (depth > 256)
496 		depth = 256;
497 	else if (depth < 1)
498 		depth = 1;
499 
500 	scsi_change_queue_depth(sdev, depth);
501 
502 	sdev->tagged_supported = 1;
503 
504 	return 0;
505 }
506 
507 /**
508  *	aac_change_queue_depth		-	alter queue depths
509  *	@sdev:	SCSI device we are considering
510  *	@depth:	desired queue depth
511  *
512  *	Alters queue depths for target device based on the host adapter's
513  *	total capacity and the queue depth supported by the target device.
514  */
515 
aac_change_queue_depth(struct scsi_device * sdev,int depth)516 static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
517 {
518 	struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
519 	int chn, tid, is_native_device = 0;
520 
521 	chn = aac_logical_to_phys(sdev_channel(sdev));
522 	tid = sdev_id(sdev);
523 	if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS &&
524 		aac->hba_map[chn][tid].devtype == AAC_DEVTYPE_NATIVE_RAW)
525 		is_native_device = 1;
526 
527 	if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
528 	    (sdev_channel(sdev) == CONTAINER_CHANNEL)) {
529 		struct scsi_device * dev;
530 		struct Scsi_Host *host = sdev->host;
531 		unsigned num = 0;
532 
533 		__shost_for_each_device(dev, host) {
534 			if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
535 			    (sdev_channel(dev) == CONTAINER_CHANNEL))
536 				++num;
537 			++num;
538 		}
539 		if (num >= host->can_queue)
540 			num = host->can_queue - 1;
541 		if (depth > (host->can_queue - num))
542 			depth = host->can_queue - num;
543 		if (depth > 256)
544 			depth = 256;
545 		else if (depth < 2)
546 			depth = 2;
547 		return scsi_change_queue_depth(sdev, depth);
548 	} else if (is_native_device) {
549 		scsi_change_queue_depth(sdev, aac->hba_map[chn][tid].qd_limit);
550 	} else {
551 		scsi_change_queue_depth(sdev, 1);
552 	}
553 	return sdev->queue_depth;
554 }
555 
aac_show_raid_level(struct device * dev,struct device_attribute * attr,char * buf)556 static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf)
557 {
558 	struct scsi_device *sdev = to_scsi_device(dev);
559 	struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
560 	if (sdev_channel(sdev) != CONTAINER_CHANNEL)
561 		return snprintf(buf, PAGE_SIZE, sdev->no_uld_attach
562 		  ? "Hidden\n" :
563 		  ((aac->jbod && (sdev->type == TYPE_DISK)) ? "JBOD\n" : ""));
564 	return snprintf(buf, PAGE_SIZE, "%s\n",
565 	  get_container_type(aac->fsa_dev[sdev_id(sdev)].type));
566 }
567 
568 static struct device_attribute aac_raid_level_attr = {
569 	.attr = {
570 		.name = "level",
571 		.mode = S_IRUGO,
572 	},
573 	.show = aac_show_raid_level
574 };
575 
aac_show_unique_id(struct device * dev,struct device_attribute * attr,char * buf)576 static ssize_t aac_show_unique_id(struct device *dev,
577 	     struct device_attribute *attr, char *buf)
578 {
579 	struct scsi_device *sdev = to_scsi_device(dev);
580 	struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
581 	unsigned char sn[16];
582 
583 	memset(sn, 0, sizeof(sn));
584 
585 	if (sdev_channel(sdev) == CONTAINER_CHANNEL)
586 		memcpy(sn, aac->fsa_dev[sdev_id(sdev)].identifier, sizeof(sn));
587 
588 	return snprintf(buf, 16 * 2 + 2,
589 		"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X\n",
590 		sn[0], sn[1], sn[2], sn[3],
591 		sn[4], sn[5], sn[6], sn[7],
592 		sn[8], sn[9], sn[10], sn[11],
593 		sn[12], sn[13], sn[14], sn[15]);
594 }
595 
596 static struct device_attribute aac_unique_id_attr = {
597 	.attr = {
598 		.name = "unique_id",
599 		.mode = 0444,
600 	},
601 	.show = aac_show_unique_id
602 };
603 
604 
605 
606 static struct attribute *aac_dev_attrs[] = {
607 	&aac_raid_level_attr.attr,
608 	&aac_unique_id_attr.attr,
609 	NULL,
610 };
611 
612 ATTRIBUTE_GROUPS(aac_dev);
613 
aac_ioctl(struct scsi_device * sdev,unsigned int cmd,void __user * arg)614 static int aac_ioctl(struct scsi_device *sdev, unsigned int cmd,
615 		     void __user *arg)
616 {
617 	int retval;
618 	struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
619 	if (!capable(CAP_SYS_RAWIO))
620 		return -EPERM;
621 	retval = aac_adapter_check_health(dev);
622 	if (retval)
623 		return -EBUSY;
624 	return aac_do_ioctl(dev, cmd, arg);
625 }
626 
627 struct fib_count_data {
628 	int mlcnt;
629 	int llcnt;
630 	int ehcnt;
631 	int fwcnt;
632 	int krlcnt;
633 };
634 
fib_count_iter(struct scsi_cmnd * scmnd,void * data)635 static bool fib_count_iter(struct scsi_cmnd *scmnd, void *data)
636 {
637 	struct fib_count_data *fib_count = data;
638 
639 	switch (aac_priv(scmnd)->owner) {
640 	case AAC_OWNER_FIRMWARE:
641 		fib_count->fwcnt++;
642 		break;
643 	case AAC_OWNER_ERROR_HANDLER:
644 		fib_count->ehcnt++;
645 		break;
646 	case AAC_OWNER_LOWLEVEL:
647 		fib_count->llcnt++;
648 		break;
649 	case AAC_OWNER_MIDLEVEL:
650 		fib_count->mlcnt++;
651 		break;
652 	default:
653 		fib_count->krlcnt++;
654 		break;
655 	}
656 	return true;
657 }
658 
659 /* Called during SCSI EH, so we don't need to block requests */
get_num_of_incomplete_fibs(struct aac_dev * aac)660 static int get_num_of_incomplete_fibs(struct aac_dev *aac)
661 {
662 	struct Scsi_Host *shost = aac->scsi_host_ptr;
663 	struct device *ctrl_dev;
664 	struct fib_count_data fcnt = { };
665 
666 	scsi_host_busy_iter(shost, fib_count_iter, &fcnt);
667 
668 	ctrl_dev = &aac->pdev->dev;
669 
670 	dev_info(ctrl_dev, "outstanding cmd: midlevel-%d\n", fcnt.mlcnt);
671 	dev_info(ctrl_dev, "outstanding cmd: lowlevel-%d\n", fcnt.llcnt);
672 	dev_info(ctrl_dev, "outstanding cmd: error handler-%d\n", fcnt.ehcnt);
673 	dev_info(ctrl_dev, "outstanding cmd: firmware-%d\n", fcnt.fwcnt);
674 	dev_info(ctrl_dev, "outstanding cmd: kernel-%d\n", fcnt.krlcnt);
675 
676 	return fcnt.mlcnt + fcnt.llcnt + fcnt.ehcnt + fcnt.fwcnt;
677 }
678 
aac_eh_abort(struct scsi_cmnd * cmd)679 static int aac_eh_abort(struct scsi_cmnd* cmd)
680 {
681 	struct aac_cmd_priv *cmd_priv = aac_priv(cmd);
682 	struct scsi_device * dev = cmd->device;
683 	struct Scsi_Host * host = dev->host;
684 	struct aac_dev * aac = (struct aac_dev *)host->hostdata;
685 	int count, found;
686 	u32 bus, cid;
687 	int ret = FAILED;
688 
689 	if (aac_adapter_check_health(aac))
690 		return ret;
691 
692 	bus = aac_logical_to_phys(scmd_channel(cmd));
693 	cid = scmd_id(cmd);
694 	if (aac->hba_map[bus][cid].devtype == AAC_DEVTYPE_NATIVE_RAW) {
695 		struct fib *fib;
696 		struct aac_hba_tm_req *tmf;
697 		int status;
698 		u64 address;
699 
700 		pr_err("%s: Host adapter abort request (%d,%d,%d,%d)\n",
701 		 AAC_DRIVERNAME,
702 		 host->host_no, sdev_channel(dev), sdev_id(dev), (int)dev->lun);
703 
704 		found = 0;
705 		for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
706 			fib = &aac->fibs[count];
707 			if (*(u8 *)fib->hw_fib_va != 0 &&
708 				(fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) &&
709 				(fib->callback_data == cmd)) {
710 				found = 1;
711 				break;
712 			}
713 		}
714 		if (!found)
715 			return ret;
716 
717 		/* start a HBA_TMF_ABORT_TASK TMF request */
718 		fib = aac_fib_alloc(aac);
719 		if (!fib)
720 			return ret;
721 
722 		tmf = (struct aac_hba_tm_req *)fib->hw_fib_va;
723 		memset(tmf, 0, sizeof(*tmf));
724 		tmf->tmf = HBA_TMF_ABORT_TASK;
725 		tmf->it_nexus = aac->hba_map[bus][cid].rmw_nexus;
726 		tmf->lun[1] = cmd->device->lun;
727 
728 		address = (u64)fib->hw_error_pa;
729 		tmf->error_ptr_hi = cpu_to_le32((u32)(address >> 32));
730 		tmf->error_ptr_lo = cpu_to_le32((u32)(address & 0xffffffff));
731 		tmf->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
732 
733 		fib->hbacmd_size = sizeof(*tmf);
734 		cmd_priv->sent_command = 0;
735 
736 		status = aac_hba_send(HBA_IU_TYPE_SCSI_TM_REQ, fib,
737 				  (fib_callback) aac_hba_callback,
738 				  (void *) cmd);
739 		if (status != -EINPROGRESS) {
740 			aac_fib_complete(fib);
741 			aac_fib_free(fib);
742 			return ret;
743 		}
744 		/* Wait up to 15 secs for completion */
745 		for (count = 0; count < 15; ++count) {
746 			if (cmd_priv->sent_command) {
747 				ret = SUCCESS;
748 				break;
749 			}
750 			msleep(1000);
751 		}
752 
753 		if (ret != SUCCESS)
754 			pr_err("%s: Host adapter abort request timed out\n",
755 			AAC_DRIVERNAME);
756 	} else {
757 		pr_err(
758 			"%s: Host adapter abort request.\n"
759 			"%s: Outstanding commands on (%d,%d,%d,%d):\n",
760 			AAC_DRIVERNAME, AAC_DRIVERNAME,
761 			host->host_no, sdev_channel(dev), sdev_id(dev),
762 			(int)dev->lun);
763 		switch (cmd->cmnd[0]) {
764 		case SERVICE_ACTION_IN_16:
765 			if (!(aac->raw_io_interface) ||
766 			    !(aac->raw_io_64) ||
767 			    ((cmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
768 				break;
769 			fallthrough;
770 		case INQUIRY:
771 		case READ_CAPACITY:
772 			/*
773 			 * Mark associated FIB to not complete,
774 			 * eh handler does this
775 			 */
776 			for (count = 0;
777 				count < (host->can_queue + AAC_NUM_MGT_FIB);
778 				++count) {
779 				struct fib *fib = &aac->fibs[count];
780 
781 				if (fib->hw_fib_va->header.XferState &&
782 				(fib->flags & FIB_CONTEXT_FLAG) &&
783 				(fib->callback_data == cmd)) {
784 					fib->flags |=
785 						FIB_CONTEXT_FLAG_TIMED_OUT;
786 					cmd_priv->owner =
787 						AAC_OWNER_ERROR_HANDLER;
788 					ret = SUCCESS;
789 				}
790 			}
791 			break;
792 		case TEST_UNIT_READY:
793 			/*
794 			 * Mark associated FIB to not complete,
795 			 * eh handler does this
796 			 */
797 			for (count = 0;
798 				count < (host->can_queue + AAC_NUM_MGT_FIB);
799 				++count) {
800 				struct scsi_cmnd *command;
801 				struct fib *fib = &aac->fibs[count];
802 
803 				command = fib->callback_data;
804 
805 				if ((fib->hw_fib_va->header.XferState &
806 					cpu_to_le32
807 					(Async | NoResponseExpected)) &&
808 					(fib->flags & FIB_CONTEXT_FLAG) &&
809 					((command)) &&
810 					(command->device == cmd->device)) {
811 					fib->flags |=
812 						FIB_CONTEXT_FLAG_TIMED_OUT;
813 					aac_priv(command)->owner =
814 						AAC_OWNER_ERROR_HANDLER;
815 					if (command == cmd)
816 						ret = SUCCESS;
817 				}
818 			}
819 			break;
820 		}
821 	}
822 	return ret;
823 }
824 
aac_eh_tmf_lun_reset_fib(struct aac_hba_map_info * info,struct fib * fib,u64 tmf_lun)825 static u8 aac_eh_tmf_lun_reset_fib(struct aac_hba_map_info *info,
826 				   struct fib *fib, u64 tmf_lun)
827 {
828 	struct aac_hba_tm_req *tmf;
829 	u64 address;
830 
831 	/* start a HBA_TMF_LUN_RESET TMF request */
832 	tmf = (struct aac_hba_tm_req *)fib->hw_fib_va;
833 	memset(tmf, 0, sizeof(*tmf));
834 	tmf->tmf = HBA_TMF_LUN_RESET;
835 	tmf->it_nexus = info->rmw_nexus;
836 	int_to_scsilun(tmf_lun, (struct scsi_lun *)tmf->lun);
837 
838 	address = (u64)fib->hw_error_pa;
839 	tmf->error_ptr_hi = cpu_to_le32
840 		((u32)(address >> 32));
841 	tmf->error_ptr_lo = cpu_to_le32
842 		((u32)(address & 0xffffffff));
843 	tmf->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
844 	fib->hbacmd_size = sizeof(*tmf);
845 
846 	return HBA_IU_TYPE_SCSI_TM_REQ;
847 }
848 
aac_eh_tmf_hard_reset_fib(struct aac_hba_map_info * info,struct fib * fib)849 static u8 aac_eh_tmf_hard_reset_fib(struct aac_hba_map_info *info,
850 				    struct fib *fib)
851 {
852 	struct aac_hba_reset_req *rst;
853 	u64 address;
854 
855 	/* already tried, start a hard reset now */
856 	rst = (struct aac_hba_reset_req *)fib->hw_fib_va;
857 	memset(rst, 0, sizeof(*rst));
858 	rst->it_nexus = info->rmw_nexus;
859 
860 	address = (u64)fib->hw_error_pa;
861 	rst->error_ptr_hi = cpu_to_le32((u32)(address >> 32));
862 	rst->error_ptr_lo = cpu_to_le32((u32)(address & 0xffffffff));
863 	rst->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
864 	fib->hbacmd_size = sizeof(*rst);
865 
866 	return HBA_IU_TYPE_SATA_REQ;
867 }
868 
aac_tmf_callback(void * context,struct fib * fibptr)869 static void aac_tmf_callback(void *context, struct fib *fibptr)
870 {
871 	struct aac_hba_resp *err =
872 		&((struct aac_native_hba *)fibptr->hw_fib_va)->resp.err;
873 	struct aac_hba_map_info *info = context;
874 	int res;
875 
876 	switch (err->service_response) {
877 	case HBA_RESP_SVCRES_TMF_REJECTED:
878 		res = -1;
879 		break;
880 	case HBA_RESP_SVCRES_TMF_LUN_INVALID:
881 		res = 0;
882 		break;
883 	case HBA_RESP_SVCRES_TMF_COMPLETE:
884 	case HBA_RESP_SVCRES_TMF_SUCCEEDED:
885 		res = 0;
886 		break;
887 	default:
888 		res = -2;
889 		break;
890 	}
891 	aac_fib_complete(fibptr);
892 
893 	info->reset_state = res;
894 }
895 
896 /*
897  *	aac_eh_dev_reset	- Device reset command handling
898  *	@scsi_cmd:	SCSI command block causing the reset
899  *
900  */
aac_eh_dev_reset(struct scsi_cmnd * cmd)901 static int aac_eh_dev_reset(struct scsi_cmnd *cmd)
902 {
903 	struct scsi_device * dev = cmd->device;
904 	struct Scsi_Host * host = dev->host;
905 	struct aac_dev * aac = (struct aac_dev *)host->hostdata;
906 	struct aac_hba_map_info *info;
907 	int count;
908 	u32 bus, cid;
909 	struct fib *fib;
910 	int ret = FAILED;
911 	int status;
912 	u8 command;
913 
914 	bus = aac_logical_to_phys(scmd_channel(cmd));
915 	cid = scmd_id(cmd);
916 
917 	if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS)
918 		return FAILED;
919 
920 	info = &aac->hba_map[bus][cid];
921 
922 	if (!(info->devtype == AAC_DEVTYPE_NATIVE_RAW &&
923 	 !(info->reset_state > 0)))
924 		return FAILED;
925 
926 	pr_err("%s: Host device reset request. SCSI hang ?\n",
927 	       AAC_DRIVERNAME);
928 
929 	fib = aac_fib_alloc(aac);
930 	if (!fib)
931 		return ret;
932 
933 	/* start a HBA_TMF_LUN_RESET TMF request */
934 	command = aac_eh_tmf_lun_reset_fib(info, fib, dev->lun);
935 
936 	info->reset_state = 1;
937 
938 	status = aac_hba_send(command, fib,
939 			      (fib_callback) aac_tmf_callback,
940 			      (void *) info);
941 	if (status != -EINPROGRESS) {
942 		info->reset_state = 0;
943 		aac_fib_complete(fib);
944 		aac_fib_free(fib);
945 		return ret;
946 	}
947 	/* Wait up to 15 seconds for completion */
948 	for (count = 0; count < 15; ++count) {
949 		if (info->reset_state == 0) {
950 			ret = info->reset_state == 0 ? SUCCESS : FAILED;
951 			break;
952 		}
953 		msleep(1000);
954 	}
955 
956 	return ret;
957 }
958 
959 /*
960  *	aac_eh_target_reset	- Target reset command handling
961  *	@scsi_cmd:	SCSI command block causing the reset
962  *
963  */
aac_eh_target_reset(struct scsi_cmnd * cmd)964 static int aac_eh_target_reset(struct scsi_cmnd *cmd)
965 {
966 	struct scsi_device * dev = cmd->device;
967 	struct Scsi_Host * host = dev->host;
968 	struct aac_dev * aac = (struct aac_dev *)host->hostdata;
969 	struct aac_hba_map_info *info;
970 	int count;
971 	u32 bus, cid;
972 	int ret = FAILED;
973 	struct fib *fib;
974 	int status;
975 	u8 command;
976 
977 	bus = aac_logical_to_phys(scmd_channel(cmd));
978 	cid = scmd_id(cmd);
979 
980 	if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS)
981 		return FAILED;
982 
983 	info = &aac->hba_map[bus][cid];
984 
985 	if (!(info->devtype == AAC_DEVTYPE_NATIVE_RAW &&
986 	 !(info->reset_state > 0)))
987 		return FAILED;
988 
989 	pr_err("%s: Host target reset request. SCSI hang ?\n",
990 	       AAC_DRIVERNAME);
991 
992 	fib = aac_fib_alloc(aac);
993 	if (!fib)
994 		return ret;
995 
996 
997 	/* already tried, start a hard reset now */
998 	command = aac_eh_tmf_hard_reset_fib(info, fib);
999 
1000 	info->reset_state = 2;
1001 
1002 	status = aac_hba_send(command, fib,
1003 			      (fib_callback) aac_tmf_callback,
1004 			      (void *) info);
1005 
1006 	if (status != -EINPROGRESS) {
1007 		info->reset_state = 0;
1008 		aac_fib_complete(fib);
1009 		aac_fib_free(fib);
1010 		return ret;
1011 	}
1012 
1013 	/* Wait up to 15 seconds for completion */
1014 	for (count = 0; count < 15; ++count) {
1015 		if (info->reset_state <= 0) {
1016 			ret = info->reset_state == 0 ? SUCCESS : FAILED;
1017 			break;
1018 		}
1019 		msleep(1000);
1020 	}
1021 
1022 	return ret;
1023 }
1024 
1025 /*
1026  *	aac_eh_bus_reset	- Bus reset command handling
1027  *	@scsi_cmd:	SCSI command block causing the reset
1028  *
1029  */
aac_eh_bus_reset(struct scsi_cmnd * cmd)1030 static int aac_eh_bus_reset(struct scsi_cmnd* cmd)
1031 {
1032 	struct scsi_device * dev = cmd->device;
1033 	struct Scsi_Host * host = dev->host;
1034 	struct aac_dev * aac = (struct aac_dev *)host->hostdata;
1035 	int count;
1036 	u32 cmd_bus;
1037 	int status = 0;
1038 
1039 
1040 	cmd_bus = aac_logical_to_phys(scmd_channel(cmd));
1041 	/* Mark the assoc. FIB to not complete, eh handler does this */
1042 	for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
1043 		struct fib *fib = &aac->fibs[count];
1044 
1045 		if (fib->hw_fib_va->header.XferState &&
1046 		    (fib->flags & FIB_CONTEXT_FLAG) &&
1047 		    (fib->flags & FIB_CONTEXT_FLAG_SCSI_CMD)) {
1048 			struct aac_hba_map_info *info;
1049 			u32 bus, cid;
1050 
1051 			cmd = (struct scsi_cmnd *)fib->callback_data;
1052 			bus = aac_logical_to_phys(scmd_channel(cmd));
1053 			if (bus != cmd_bus)
1054 				continue;
1055 			cid = scmd_id(cmd);
1056 			info = &aac->hba_map[bus][cid];
1057 			if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS ||
1058 			    info->devtype != AAC_DEVTYPE_NATIVE_RAW) {
1059 				fib->flags |= FIB_CONTEXT_FLAG_EH_RESET;
1060 				aac_priv(cmd)->owner = AAC_OWNER_ERROR_HANDLER;
1061 			}
1062 		}
1063 	}
1064 
1065 	pr_err("%s: Host bus reset request. SCSI hang ?\n", AAC_DRIVERNAME);
1066 
1067 	/*
1068 	 * Check the health of the controller
1069 	 */
1070 	status = aac_adapter_check_health(aac);
1071 	if (status)
1072 		dev_err(&aac->pdev->dev, "Adapter health - %d\n", status);
1073 
1074 	count = get_num_of_incomplete_fibs(aac);
1075 	return (count == 0) ? SUCCESS : FAILED;
1076 }
1077 
1078 /*
1079  *	aac_eh_host_reset	- Host reset command handling
1080  *	@scsi_cmd:	SCSI command block causing the reset
1081  *
1082  */
aac_eh_host_reset(struct scsi_cmnd * cmd)1083 static int aac_eh_host_reset(struct scsi_cmnd *cmd)
1084 {
1085 	struct scsi_device * dev = cmd->device;
1086 	struct Scsi_Host * host = dev->host;
1087 	struct aac_dev * aac = (struct aac_dev *)host->hostdata;
1088 	int ret = FAILED;
1089 	__le32 supported_options2 = 0;
1090 	bool is_mu_reset;
1091 	bool is_ignore_reset;
1092 	bool is_doorbell_reset;
1093 
1094 	/*
1095 	 * Check if reset is supported by the firmware
1096 	 */
1097 	supported_options2 = aac->supplement_adapter_info.supported_options2;
1098 	is_mu_reset = supported_options2 & AAC_OPTION_MU_RESET;
1099 	is_doorbell_reset = supported_options2 & AAC_OPTION_DOORBELL_RESET;
1100 	is_ignore_reset = supported_options2 & AAC_OPTION_IGNORE_RESET;
1101 	/*
1102 	 * This adapter needs a blind reset, only do so for
1103 	 * Adapters that support a register, instead of a commanded,
1104 	 * reset.
1105 	 */
1106 	if ((is_mu_reset || is_doorbell_reset)
1107 	 && aac_check_reset
1108 	 && (aac_check_reset != -1 || !is_ignore_reset)) {
1109 		/* Bypass wait for command quiesce */
1110 		if (aac_reset_adapter(aac, 2, IOP_HWSOFT_RESET) == 0)
1111 			ret = SUCCESS;
1112 	}
1113 	/*
1114 	 * Reset EH state
1115 	 */
1116 	if (ret == SUCCESS) {
1117 		int bus, cid;
1118 		struct aac_hba_map_info *info;
1119 
1120 		for (bus = 0; bus < AAC_MAX_BUSES; bus++) {
1121 			for (cid = 0; cid < AAC_MAX_TARGETS; cid++) {
1122 				info = &aac->hba_map[bus][cid];
1123 				if (info->devtype == AAC_DEVTYPE_NATIVE_RAW)
1124 					info->reset_state = 0;
1125 			}
1126 		}
1127 	}
1128 	return ret;
1129 }
1130 
1131 /**
1132  *	aac_cfg_open		-	open a configuration file
1133  *	@inode: inode being opened
1134  *	@file: file handle attached
1135  *
1136  *	Called when the configuration device is opened. Does the needed
1137  *	set up on the handle and then returns
1138  *
1139  *	Bugs: This needs extending to check a given adapter is present
1140  *	so we can support hot plugging, and to ref count adapters.
1141  */
1142 
aac_cfg_open(struct inode * inode,struct file * file)1143 static int aac_cfg_open(struct inode *inode, struct file *file)
1144 {
1145 	struct aac_dev *aac;
1146 	unsigned minor_number = iminor(inode);
1147 	int err = -ENODEV;
1148 
1149 	mutex_lock(&aac_mutex);  /* BKL pushdown: nothing else protects this list */
1150 	list_for_each_entry(aac, &aac_devices, entry) {
1151 		if (aac->id == minor_number) {
1152 			file->private_data = aac;
1153 			err = 0;
1154 			break;
1155 		}
1156 	}
1157 	mutex_unlock(&aac_mutex);
1158 
1159 	return err;
1160 }
1161 
1162 /**
1163  *	aac_cfg_ioctl		-	AAC configuration request
1164  *	@file: file handle
1165  *	@cmd: ioctl command code
1166  *	@arg: argument
1167  *
1168  *	Handles a configuration ioctl. Currently this involves wrapping it
1169  *	up and feeding it into the nasty windowsalike glue layer.
1170  *
1171  *	Bugs: Needs locking against parallel ioctls lower down
1172  *	Bugs: Needs to handle hot plugging
1173  */
1174 
aac_cfg_ioctl(struct file * file,unsigned int cmd,unsigned long arg)1175 static long aac_cfg_ioctl(struct file *file,
1176 		unsigned int cmd, unsigned long arg)
1177 {
1178 	struct aac_dev *aac = (struct aac_dev *)file->private_data;
1179 
1180 	if (!capable(CAP_SYS_RAWIO))
1181 		return -EPERM;
1182 
1183 	return aac_do_ioctl(aac, cmd, (void __user *)arg);
1184 }
1185 
aac_show_model(struct device * device,struct device_attribute * attr,char * buf)1186 static ssize_t aac_show_model(struct device *device,
1187 			      struct device_attribute *attr, char *buf)
1188 {
1189 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1190 	int len;
1191 
1192 	if (dev->supplement_adapter_info.adapter_type_text[0]) {
1193 		char *cp = dev->supplement_adapter_info.adapter_type_text;
1194 		while (*cp && *cp != ' ')
1195 			++cp;
1196 		while (*cp == ' ')
1197 			++cp;
1198 		len = snprintf(buf, PAGE_SIZE, "%s\n", cp);
1199 	} else
1200 		len = snprintf(buf, PAGE_SIZE, "%s\n",
1201 		  aac_drivers[dev->cardtype].model);
1202 	return len;
1203 }
1204 
aac_show_vendor(struct device * device,struct device_attribute * attr,char * buf)1205 static ssize_t aac_show_vendor(struct device *device,
1206 			       struct device_attribute *attr, char *buf)
1207 {
1208 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1209 	struct aac_supplement_adapter_info *sup_adap_info;
1210 	int len;
1211 
1212 	sup_adap_info = &dev->supplement_adapter_info;
1213 	if (sup_adap_info->adapter_type_text[0]) {
1214 		char *cp = sup_adap_info->adapter_type_text;
1215 		while (*cp && *cp != ' ')
1216 			++cp;
1217 		len = snprintf(buf, PAGE_SIZE, "%.*s\n",
1218 			(int)(cp - (char *)sup_adap_info->adapter_type_text),
1219 					sup_adap_info->adapter_type_text);
1220 	} else
1221 		len = snprintf(buf, PAGE_SIZE, "%s\n",
1222 			aac_drivers[dev->cardtype].vname);
1223 	return len;
1224 }
1225 
aac_show_flags(struct device * cdev,struct device_attribute * attr,char * buf)1226 static ssize_t aac_show_flags(struct device *cdev,
1227 			      struct device_attribute *attr, char *buf)
1228 {
1229 	int len = 0;
1230 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(cdev)->hostdata;
1231 
1232 	if (nblank(dprintk(x)))
1233 		len = snprintf(buf, PAGE_SIZE, "dprintk\n");
1234 #ifdef AAC_DETAILED_STATUS_INFO
1235 	len += scnprintf(buf + len, PAGE_SIZE - len,
1236 			 "AAC_DETAILED_STATUS_INFO\n");
1237 #endif
1238 	if (dev->raw_io_interface && dev->raw_io_64)
1239 		len += scnprintf(buf + len, PAGE_SIZE - len,
1240 				 "SAI_READ_CAPACITY_16\n");
1241 	if (dev->jbod)
1242 		len += scnprintf(buf + len, PAGE_SIZE - len,
1243 				 "SUPPORTED_JBOD\n");
1244 	if (dev->supplement_adapter_info.supported_options2 &
1245 		AAC_OPTION_POWER_MANAGEMENT)
1246 		len += scnprintf(buf + len, PAGE_SIZE - len,
1247 				 "SUPPORTED_POWER_MANAGEMENT\n");
1248 	if (dev->msi)
1249 		len += scnprintf(buf + len, PAGE_SIZE - len, "PCI_HAS_MSI\n");
1250 	return len;
1251 }
1252 
aac_show_kernel_version(struct device * device,struct device_attribute * attr,char * buf)1253 static ssize_t aac_show_kernel_version(struct device *device,
1254 				       struct device_attribute *attr,
1255 				       char *buf)
1256 {
1257 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1258 	int len, tmp;
1259 
1260 	tmp = le32_to_cpu(dev->adapter_info.kernelrev);
1261 	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
1262 	  tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
1263 	  le32_to_cpu(dev->adapter_info.kernelbuild));
1264 	return len;
1265 }
1266 
aac_show_monitor_version(struct device * device,struct device_attribute * attr,char * buf)1267 static ssize_t aac_show_monitor_version(struct device *device,
1268 					struct device_attribute *attr,
1269 					char *buf)
1270 {
1271 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1272 	int len, tmp;
1273 
1274 	tmp = le32_to_cpu(dev->adapter_info.monitorrev);
1275 	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
1276 	  tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
1277 	  le32_to_cpu(dev->adapter_info.monitorbuild));
1278 	return len;
1279 }
1280 
aac_show_bios_version(struct device * device,struct device_attribute * attr,char * buf)1281 static ssize_t aac_show_bios_version(struct device *device,
1282 				     struct device_attribute *attr,
1283 				     char *buf)
1284 {
1285 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1286 	int len, tmp;
1287 
1288 	tmp = le32_to_cpu(dev->adapter_info.biosrev);
1289 	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
1290 	  tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
1291 	  le32_to_cpu(dev->adapter_info.biosbuild));
1292 	return len;
1293 }
1294 
aac_show_driver_version(struct device * device,struct device_attribute * attr,char * buf)1295 static ssize_t aac_show_driver_version(struct device *device,
1296 					struct device_attribute *attr,
1297 					char *buf)
1298 {
1299 	return snprintf(buf, PAGE_SIZE, "%s\n", aac_driver_version);
1300 }
1301 
aac_show_serial_number(struct device * device,struct device_attribute * attr,char * buf)1302 static ssize_t aac_show_serial_number(struct device *device,
1303 			       struct device_attribute *attr, char *buf)
1304 {
1305 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1306 	int len = 0;
1307 
1308 	if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
1309 		len = snprintf(buf, 16, "%06X\n",
1310 		  le32_to_cpu(dev->adapter_info.serial[0]));
1311 	if (len &&
1312 	  !memcmp(&dev->supplement_adapter_info.mfg_pcba_serial_no[
1313 	    sizeof(dev->supplement_adapter_info.mfg_pcba_serial_no)-len],
1314 	  buf, len-1))
1315 		len = snprintf(buf, 16, "%.*s\n",
1316 		  (int)sizeof(dev->supplement_adapter_info.mfg_pcba_serial_no),
1317 		  dev->supplement_adapter_info.mfg_pcba_serial_no);
1318 
1319 	return min(len, 16);
1320 }
1321 
aac_show_max_channel(struct device * device,struct device_attribute * attr,char * buf)1322 static ssize_t aac_show_max_channel(struct device *device,
1323 				    struct device_attribute *attr, char *buf)
1324 {
1325 	return snprintf(buf, PAGE_SIZE, "%d\n",
1326 	  class_to_shost(device)->max_channel);
1327 }
1328 
aac_show_max_id(struct device * device,struct device_attribute * attr,char * buf)1329 static ssize_t aac_show_max_id(struct device *device,
1330 			       struct device_attribute *attr, char *buf)
1331 {
1332 	return snprintf(buf, PAGE_SIZE, "%d\n",
1333 	  class_to_shost(device)->max_id);
1334 }
1335 
aac_store_reset_adapter(struct device * device,struct device_attribute * attr,const char * buf,size_t count)1336 static ssize_t aac_store_reset_adapter(struct device *device,
1337 				       struct device_attribute *attr,
1338 				       const char *buf, size_t count)
1339 {
1340 	int retval = -EACCES;
1341 
1342 	if (!capable(CAP_SYS_ADMIN))
1343 		return retval;
1344 
1345 	retval = aac_reset_adapter(shost_priv(class_to_shost(device)),
1346 					buf[0] == '!', IOP_HWSOFT_RESET);
1347 	if (retval >= 0)
1348 		retval = count;
1349 
1350 	return retval;
1351 }
1352 
aac_show_reset_adapter(struct device * device,struct device_attribute * attr,char * buf)1353 static ssize_t aac_show_reset_adapter(struct device *device,
1354 				      struct device_attribute *attr,
1355 				      char *buf)
1356 {
1357 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1358 	int len, tmp;
1359 
1360 	tmp = aac_adapter_check_health(dev);
1361 	if ((tmp == 0) && dev->in_reset)
1362 		tmp = -EBUSY;
1363 	len = snprintf(buf, PAGE_SIZE, "0x%x\n", tmp);
1364 	return len;
1365 }
1366 
1367 static struct device_attribute aac_model = {
1368 	.attr = {
1369 		.name = "model",
1370 		.mode = S_IRUGO,
1371 	},
1372 	.show = aac_show_model,
1373 };
1374 static struct device_attribute aac_vendor = {
1375 	.attr = {
1376 		.name = "vendor",
1377 		.mode = S_IRUGO,
1378 	},
1379 	.show = aac_show_vendor,
1380 };
1381 static struct device_attribute aac_flags = {
1382 	.attr = {
1383 		.name = "flags",
1384 		.mode = S_IRUGO,
1385 	},
1386 	.show = aac_show_flags,
1387 };
1388 static struct device_attribute aac_kernel_version = {
1389 	.attr = {
1390 		.name = "hba_kernel_version",
1391 		.mode = S_IRUGO,
1392 	},
1393 	.show = aac_show_kernel_version,
1394 };
1395 static struct device_attribute aac_monitor_version = {
1396 	.attr = {
1397 		.name = "hba_monitor_version",
1398 		.mode = S_IRUGO,
1399 	},
1400 	.show = aac_show_monitor_version,
1401 };
1402 static struct device_attribute aac_bios_version = {
1403 	.attr = {
1404 		.name = "hba_bios_version",
1405 		.mode = S_IRUGO,
1406 	},
1407 	.show = aac_show_bios_version,
1408 };
1409 static struct device_attribute aac_lld_version = {
1410 	.attr = {
1411 		.name = "driver_version",
1412 		.mode = 0444,
1413 	},
1414 	.show = aac_show_driver_version,
1415 };
1416 static struct device_attribute aac_serial_number = {
1417 	.attr = {
1418 		.name = "serial_number",
1419 		.mode = S_IRUGO,
1420 	},
1421 	.show = aac_show_serial_number,
1422 };
1423 static struct device_attribute aac_max_channel = {
1424 	.attr = {
1425 		.name = "max_channel",
1426 		.mode = S_IRUGO,
1427 	},
1428 	.show = aac_show_max_channel,
1429 };
1430 static struct device_attribute aac_max_id = {
1431 	.attr = {
1432 		.name = "max_id",
1433 		.mode = S_IRUGO,
1434 	},
1435 	.show = aac_show_max_id,
1436 };
1437 static struct device_attribute aac_reset = {
1438 	.attr = {
1439 		.name = "reset_host",
1440 		.mode = S_IWUSR|S_IRUGO,
1441 	},
1442 	.store = aac_store_reset_adapter,
1443 	.show = aac_show_reset_adapter,
1444 };
1445 
1446 static struct attribute *aac_host_attrs[] = {
1447 	&aac_model.attr,
1448 	&aac_vendor.attr,
1449 	&aac_flags.attr,
1450 	&aac_kernel_version.attr,
1451 	&aac_monitor_version.attr,
1452 	&aac_bios_version.attr,
1453 	&aac_lld_version.attr,
1454 	&aac_serial_number.attr,
1455 	&aac_max_channel.attr,
1456 	&aac_max_id.attr,
1457 	&aac_reset.attr,
1458 	NULL
1459 };
1460 
1461 ATTRIBUTE_GROUPS(aac_host);
1462 
aac_get_serial_number(struct device * device,char * buf)1463 ssize_t aac_get_serial_number(struct device *device, char *buf)
1464 {
1465 	return aac_show_serial_number(device, &aac_serial_number, buf);
1466 }
1467 
1468 static const struct file_operations aac_cfg_fops = {
1469 	.owner		= THIS_MODULE,
1470 	.unlocked_ioctl	= aac_cfg_ioctl,
1471 #ifdef CONFIG_COMPAT
1472 	.compat_ioctl   = aac_cfg_ioctl,
1473 #endif
1474 	.open		= aac_cfg_open,
1475 	.llseek		= noop_llseek,
1476 };
1477 
1478 static const struct scsi_host_template aac_driver_template = {
1479 	.module				= THIS_MODULE,
1480 	.name				= "AAC",
1481 	.proc_name			= AAC_DRIVERNAME,
1482 	.info				= aac_info,
1483 	.ioctl				= aac_ioctl,
1484 #ifdef CONFIG_COMPAT
1485 	.compat_ioctl			= aac_ioctl,
1486 #endif
1487 	.queuecommand			= aac_queuecommand,
1488 	.bios_param			= aac_biosparm,
1489 	.shost_groups			= aac_host_groups,
1490 	.slave_configure		= aac_slave_configure,
1491 	.change_queue_depth		= aac_change_queue_depth,
1492 	.sdev_groups			= aac_dev_groups,
1493 	.eh_abort_handler		= aac_eh_abort,
1494 	.eh_device_reset_handler	= aac_eh_dev_reset,
1495 	.eh_target_reset_handler	= aac_eh_target_reset,
1496 	.eh_bus_reset_handler		= aac_eh_bus_reset,
1497 	.eh_host_reset_handler		= aac_eh_host_reset,
1498 	.can_queue			= AAC_NUM_IO_FIB,
1499 	.this_id			= MAXIMUM_NUM_CONTAINERS,
1500 	.sg_tablesize			= 16,
1501 	.max_sectors			= 128,
1502 #if (AAC_NUM_IO_FIB > 256)
1503 	.cmd_per_lun			= 256,
1504 #else
1505 	.cmd_per_lun			= AAC_NUM_IO_FIB,
1506 #endif
1507 	.emulated			= 1,
1508 	.no_write_same			= 1,
1509 	.cmd_size			= sizeof(struct aac_cmd_priv),
1510 };
1511 
__aac_shutdown(struct aac_dev * aac)1512 static void __aac_shutdown(struct aac_dev * aac)
1513 {
1514 	int i;
1515 
1516 	mutex_lock(&aac->ioctl_mutex);
1517 	aac->adapter_shutdown = 1;
1518 	mutex_unlock(&aac->ioctl_mutex);
1519 
1520 	if (aac->aif_thread) {
1521 		int i;
1522 		/* Clear out events first */
1523 		for (i = 0; i < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); i++) {
1524 			struct fib *fib = &aac->fibs[i];
1525 			if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) &&
1526 			    (fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected)))
1527 				complete(&fib->event_wait);
1528 		}
1529 		kthread_stop(aac->thread);
1530 		aac->thread = NULL;
1531 	}
1532 
1533 	aac_send_shutdown(aac);
1534 
1535 	aac_adapter_disable_int(aac);
1536 
1537 	if (aac_is_src(aac)) {
1538 		if (aac->max_msix > 1) {
1539 			for (i = 0; i < aac->max_msix; i++) {
1540 				free_irq(pci_irq_vector(aac->pdev, i),
1541 					 &(aac->aac_msix[i]));
1542 			}
1543 		} else {
1544 			free_irq(aac->pdev->irq,
1545 				 &(aac->aac_msix[0]));
1546 		}
1547 	} else {
1548 		free_irq(aac->pdev->irq, aac);
1549 	}
1550 	if (aac->msi)
1551 		pci_disable_msi(aac->pdev);
1552 	else if (aac->max_msix > 1)
1553 		pci_disable_msix(aac->pdev);
1554 }
aac_init_char(void)1555 static void aac_init_char(void)
1556 {
1557 	aac_cfg_major = register_chrdev(0, "aac", &aac_cfg_fops);
1558 	if (aac_cfg_major < 0) {
1559 		pr_err("aacraid: unable to register \"aac\" device.\n");
1560 	}
1561 }
1562 
aac_reinit_aif(struct aac_dev * aac,unsigned int index)1563 void aac_reinit_aif(struct aac_dev *aac, unsigned int index)
1564 {
1565 	/*
1566 	 * Firmware may send a AIF messages very early and the Driver may have
1567 	 * ignored as it is not fully ready to process the messages. Send
1568 	 * AIF to firmware so that if there are any unprocessed events they
1569 	 * can be processed now.
1570 	 */
1571 	if (aac_drivers[index].quirks & AAC_QUIRK_SRC)
1572 		aac_intr_normal(aac, 0, 2, 0, NULL);
1573 
1574 }
1575 
aac_probe_one(struct pci_dev * pdev,const struct pci_device_id * id)1576 static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1577 {
1578 	unsigned index = id->driver_data;
1579 	struct Scsi_Host *shost;
1580 	struct aac_dev *aac;
1581 	struct list_head *insert = &aac_devices;
1582 	int error;
1583 	int unique_id = 0;
1584 	u64 dmamask;
1585 	int mask_bits = 0;
1586 	extern int aac_sync_mode;
1587 
1588 	/*
1589 	 * Only series 7 needs freset.
1590 	 */
1591 	if (pdev->device == PMC_DEVICE_S7)
1592 		pdev->needs_freset = 1;
1593 
1594 	list_for_each_entry(aac, &aac_devices, entry) {
1595 		if (aac->id > unique_id)
1596 			break;
1597 		insert = &aac->entry;
1598 		unique_id++;
1599 	}
1600 
1601 	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
1602 			       PCIE_LINK_STATE_CLKPM);
1603 
1604 	error = pci_enable_device(pdev);
1605 	if (error)
1606 		goto out;
1607 
1608 	if (!(aac_drivers[index].quirks & AAC_QUIRK_SRC)) {
1609 		error = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
1610 		if (error) {
1611 			dev_err(&pdev->dev, "PCI 32 BIT dma mask set failed");
1612 			goto out_disable_pdev;
1613 		}
1614 	}
1615 
1616 	/*
1617 	 * If the quirk31 bit is set, the adapter needs adapter
1618 	 * to driver communication memory to be allocated below 2gig
1619 	 */
1620 	if (aac_drivers[index].quirks & AAC_QUIRK_31BIT) {
1621 		dmamask = DMA_BIT_MASK(31);
1622 		mask_bits = 31;
1623 	} else {
1624 		dmamask = DMA_BIT_MASK(32);
1625 		mask_bits = 32;
1626 	}
1627 
1628 	error = dma_set_coherent_mask(&pdev->dev, dmamask);
1629 	if (error) {
1630 		dev_err(&pdev->dev, "PCI %d B consistent dma mask set failed\n"
1631 				, mask_bits);
1632 		goto out_disable_pdev;
1633 	}
1634 
1635 	pci_set_master(pdev);
1636 
1637 	shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
1638 	if (!shost) {
1639 		error = -ENOMEM;
1640 		goto out_disable_pdev;
1641 	}
1642 
1643 	shost->irq = pdev->irq;
1644 	shost->unique_id = unique_id;
1645 	shost->max_cmd_len = 16;
1646 
1647 	if (aac_cfg_major == AAC_CHARDEV_NEEDS_REINIT)
1648 		aac_init_char();
1649 
1650 	aac = (struct aac_dev *)shost->hostdata;
1651 	aac->base_start = pci_resource_start(pdev, 0);
1652 	aac->scsi_host_ptr = shost;
1653 	aac->pdev = pdev;
1654 	aac->name = aac_driver_template.name;
1655 	aac->id = shost->unique_id;
1656 	aac->cardtype = index;
1657 	INIT_LIST_HEAD(&aac->entry);
1658 
1659 	if (aac_reset_devices || reset_devices)
1660 		aac->init_reset = true;
1661 
1662 	aac->fibs = kcalloc(shost->can_queue + AAC_NUM_MGT_FIB,
1663 			    sizeof(struct fib),
1664 			    GFP_KERNEL);
1665 	if (!aac->fibs) {
1666 		error = -ENOMEM;
1667 		goto out_free_host;
1668 	}
1669 
1670 	spin_lock_init(&aac->fib_lock);
1671 
1672 	mutex_init(&aac->ioctl_mutex);
1673 	mutex_init(&aac->scan_mutex);
1674 
1675 	INIT_DELAYED_WORK(&aac->safw_rescan_work, aac_safw_rescan_worker);
1676 	INIT_DELAYED_WORK(&aac->src_reinit_aif_worker,
1677 				aac_src_reinit_aif_worker);
1678 	/*
1679 	 *	Map in the registers from the adapter.
1680 	 */
1681 	aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
1682 	if ((*aac_drivers[index].init)(aac)) {
1683 		error = -ENODEV;
1684 		goto out_unmap;
1685 	}
1686 
1687 	if (aac->sync_mode) {
1688 		if (aac_sync_mode)
1689 			printk(KERN_INFO "%s%d: Sync. mode enforced "
1690 				"by driver parameter. This will cause "
1691 				"a significant performance decrease!\n",
1692 				aac->name,
1693 				aac->id);
1694 		else
1695 			printk(KERN_INFO "%s%d: Async. mode not supported "
1696 				"by current driver, sync. mode enforced."
1697 				"\nPlease update driver to get full performance.\n",
1698 				aac->name,
1699 				aac->id);
1700 	}
1701 
1702 	/*
1703 	 *	Start any kernel threads needed
1704 	 */
1705 	aac->thread = kthread_run(aac_command_thread, aac, AAC_DRIVERNAME);
1706 	if (IS_ERR(aac->thread)) {
1707 		printk(KERN_ERR "aacraid: Unable to create command thread.\n");
1708 		error = PTR_ERR(aac->thread);
1709 		aac->thread = NULL;
1710 		goto out_deinit;
1711 	}
1712 
1713 	aac->maximum_num_channels = aac_drivers[index].channels;
1714 	error = aac_get_adapter_info(aac);
1715 	if (error < 0)
1716 		goto out_deinit;
1717 
1718 	/*
1719 	 * Lets override negotiations and drop the maximum SG limit to 34
1720 	 */
1721 	if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) &&
1722 			(shost->sg_tablesize > 34)) {
1723 		shost->sg_tablesize = 34;
1724 		shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1725 	}
1726 
1727 	if ((aac_drivers[index].quirks & AAC_QUIRK_17SG) &&
1728 			(shost->sg_tablesize > 17)) {
1729 		shost->sg_tablesize = 17;
1730 		shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1731 	}
1732 
1733 	if (aac->adapter_info.options & AAC_OPT_NEW_COMM)
1734 		shost->max_segment_size = shost->max_sectors << 9;
1735 	else
1736 		shost->max_segment_size = 65536;
1737 
1738 	/*
1739 	 * Firmware printf works only with older firmware.
1740 	 */
1741 	if (aac_drivers[index].quirks & AAC_QUIRK_34SG)
1742 		aac->printf_enabled = 1;
1743 	else
1744 		aac->printf_enabled = 0;
1745 
1746 	/*
1747 	 * max channel will be the physical channels plus 1 virtual channel
1748 	 * all containers are on the virtual channel 0 (CONTAINER_CHANNEL)
1749 	 * physical channels are address by their actual physical number+1
1750 	 */
1751 	if (aac->nondasd_support || expose_physicals || aac->jbod)
1752 		shost->max_channel = aac->maximum_num_channels;
1753 	else
1754 		shost->max_channel = 0;
1755 
1756 	aac_get_config_status(aac, 0);
1757 	aac_get_containers(aac);
1758 	list_add(&aac->entry, insert);
1759 
1760 	shost->max_id = aac->maximum_num_containers;
1761 	if (shost->max_id < aac->maximum_num_physicals)
1762 		shost->max_id = aac->maximum_num_physicals;
1763 	if (shost->max_id < MAXIMUM_NUM_CONTAINERS)
1764 		shost->max_id = MAXIMUM_NUM_CONTAINERS;
1765 	else
1766 		shost->this_id = shost->max_id;
1767 
1768 	if (!aac->sa_firmware && aac_drivers[index].quirks & AAC_QUIRK_SRC)
1769 		aac_intr_normal(aac, 0, 2, 0, NULL);
1770 
1771 	/*
1772 	 * dmb - we may need to move the setting of these parms somewhere else once
1773 	 * we get a fib that can report the actual numbers
1774 	 */
1775 	shost->max_lun = AAC_MAX_LUN;
1776 
1777 	pci_set_drvdata(pdev, shost);
1778 
1779 	error = scsi_add_host(shost, &pdev->dev);
1780 	if (error)
1781 		goto out_deinit;
1782 
1783 	aac_scan_host(aac);
1784 
1785 	pci_save_state(pdev);
1786 
1787 	return 0;
1788 
1789  out_deinit:
1790 	__aac_shutdown(aac);
1791  out_unmap:
1792 	aac_fib_map_free(aac);
1793 	if (aac->comm_addr)
1794 		dma_free_coherent(&aac->pdev->dev, aac->comm_size,
1795 				  aac->comm_addr, aac->comm_phys);
1796 	kfree(aac->queues);
1797 	aac_adapter_ioremap(aac, 0);
1798 	kfree(aac->fibs);
1799 	kfree(aac->fsa_dev);
1800  out_free_host:
1801 	scsi_host_put(shost);
1802  out_disable_pdev:
1803 	pci_disable_device(pdev);
1804  out:
1805 	return error;
1806 }
1807 
aac_release_resources(struct aac_dev * aac)1808 static void aac_release_resources(struct aac_dev *aac)
1809 {
1810 	aac_adapter_disable_int(aac);
1811 	aac_free_irq(aac);
1812 }
1813 
aac_acquire_resources(struct aac_dev * dev)1814 static int aac_acquire_resources(struct aac_dev *dev)
1815 {
1816 	unsigned long status;
1817 	/*
1818 	 *	First clear out all interrupts.  Then enable the one's that we
1819 	 *	can handle.
1820 	 */
1821 	while (!((status = src_readl(dev, MUnit.OMR)) & KERNEL_UP_AND_RUNNING)
1822 		|| status == 0xffffffff)
1823 			msleep(20);
1824 
1825 	aac_adapter_disable_int(dev);
1826 	aac_adapter_enable_int(dev);
1827 
1828 
1829 	if (aac_is_src(dev))
1830 		aac_define_int_mode(dev);
1831 
1832 	if (dev->msi_enabled)
1833 		aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
1834 
1835 	if (aac_acquire_irq(dev))
1836 		goto error_iounmap;
1837 
1838 	aac_adapter_enable_int(dev);
1839 
1840 	/*max msix may change  after EEH
1841 	 * Re-assign vectors to fibs
1842 	 */
1843 	aac_fib_vector_assign(dev);
1844 
1845 	if (!dev->sync_mode) {
1846 		/* After EEH recovery or suspend resume, max_msix count
1847 		 * may change, therefore updating in init as well.
1848 		 */
1849 		dev->init->r7.no_of_msix_vectors = cpu_to_le32(dev->max_msix);
1850 		aac_adapter_start(dev);
1851 	}
1852 	return 0;
1853 
1854 error_iounmap:
1855 	return -1;
1856 
1857 }
1858 
aac_suspend(struct device * dev)1859 static int __maybe_unused aac_suspend(struct device *dev)
1860 {
1861 	struct Scsi_Host *shost = dev_get_drvdata(dev);
1862 	struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1863 
1864 	scsi_host_block(shost);
1865 	aac_cancel_rescan_worker(aac);
1866 	aac_send_shutdown(aac);
1867 
1868 	aac_release_resources(aac);
1869 
1870 	return 0;
1871 }
1872 
aac_resume(struct device * dev)1873 static int __maybe_unused aac_resume(struct device *dev)
1874 {
1875 	struct Scsi_Host *shost = dev_get_drvdata(dev);
1876 	struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1877 
1878 	if (aac_acquire_resources(aac))
1879 		goto fail_device;
1880 	/*
1881 	* reset this flag to unblock ioctl() as it was set at
1882 	* aac_send_shutdown() to block ioctls from upperlayer
1883 	*/
1884 	aac->adapter_shutdown = 0;
1885 	scsi_host_unblock(shost, SDEV_RUNNING);
1886 
1887 	return 0;
1888 
1889 fail_device:
1890 	printk(KERN_INFO "%s%d: resume failed.\n", aac->name, aac->id);
1891 	scsi_host_put(shost);
1892 	return -ENODEV;
1893 }
1894 
aac_shutdown(struct pci_dev * dev)1895 static void aac_shutdown(struct pci_dev *dev)
1896 {
1897 	struct Scsi_Host *shost = pci_get_drvdata(dev);
1898 
1899 	scsi_host_block(shost);
1900 	__aac_shutdown((struct aac_dev *)shost->hostdata);
1901 }
1902 
aac_remove_one(struct pci_dev * pdev)1903 static void aac_remove_one(struct pci_dev *pdev)
1904 {
1905 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
1906 	struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1907 
1908 	aac_cancel_rescan_worker(aac);
1909 	scsi_remove_host(shost);
1910 
1911 	__aac_shutdown(aac);
1912 	aac_fib_map_free(aac);
1913 	dma_free_coherent(&aac->pdev->dev, aac->comm_size, aac->comm_addr,
1914 			  aac->comm_phys);
1915 	kfree(aac->queues);
1916 
1917 	aac_adapter_ioremap(aac, 0);
1918 
1919 	kfree(aac->fibs);
1920 	kfree(aac->fsa_dev);
1921 
1922 	list_del(&aac->entry);
1923 	scsi_host_put(shost);
1924 	pci_disable_device(pdev);
1925 	if (list_empty(&aac_devices)) {
1926 		unregister_chrdev(aac_cfg_major, "aac");
1927 		aac_cfg_major = AAC_CHARDEV_NEEDS_REINIT;
1928 	}
1929 }
1930 
aac_pci_error_detected(struct pci_dev * pdev,pci_channel_state_t error)1931 static pci_ers_result_t aac_pci_error_detected(struct pci_dev *pdev,
1932 					pci_channel_state_t error)
1933 {
1934 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
1935 	struct aac_dev *aac = shost_priv(shost);
1936 
1937 	dev_err(&pdev->dev, "aacraid: PCI error detected %x\n", error);
1938 
1939 	switch (error) {
1940 	case pci_channel_io_normal:
1941 		return PCI_ERS_RESULT_CAN_RECOVER;
1942 	case pci_channel_io_frozen:
1943 		aac->handle_pci_error = 1;
1944 
1945 		scsi_host_block(shost);
1946 		aac_cancel_rescan_worker(aac);
1947 		scsi_host_complete_all_commands(shost, DID_NO_CONNECT);
1948 		aac_release_resources(aac);
1949 
1950 		aac_adapter_ioremap(aac, 0);
1951 
1952 		return PCI_ERS_RESULT_NEED_RESET;
1953 	case pci_channel_io_perm_failure:
1954 		aac->handle_pci_error = 1;
1955 
1956 		scsi_host_complete_all_commands(shost, DID_NO_CONNECT);
1957 		return PCI_ERS_RESULT_DISCONNECT;
1958 	}
1959 
1960 	return PCI_ERS_RESULT_NEED_RESET;
1961 }
1962 
aac_pci_mmio_enabled(struct pci_dev * pdev)1963 static pci_ers_result_t aac_pci_mmio_enabled(struct pci_dev *pdev)
1964 {
1965 	dev_err(&pdev->dev, "aacraid: PCI error - mmio enabled\n");
1966 	return PCI_ERS_RESULT_NEED_RESET;
1967 }
1968 
aac_pci_slot_reset(struct pci_dev * pdev)1969 static pci_ers_result_t aac_pci_slot_reset(struct pci_dev *pdev)
1970 {
1971 	dev_err(&pdev->dev, "aacraid: PCI error - slot reset\n");
1972 	pci_restore_state(pdev);
1973 	if (pci_enable_device(pdev)) {
1974 		dev_warn(&pdev->dev,
1975 			"aacraid: failed to enable slave\n");
1976 		goto fail_device;
1977 	}
1978 
1979 	pci_set_master(pdev);
1980 
1981 	if (pci_enable_device_mem(pdev)) {
1982 		dev_err(&pdev->dev, "pci_enable_device_mem failed\n");
1983 		goto fail_device;
1984 	}
1985 
1986 	return PCI_ERS_RESULT_RECOVERED;
1987 
1988 fail_device:
1989 	dev_err(&pdev->dev, "aacraid: PCI error - slot reset failed\n");
1990 	return PCI_ERS_RESULT_DISCONNECT;
1991 }
1992 
1993 
aac_pci_resume(struct pci_dev * pdev)1994 static void aac_pci_resume(struct pci_dev *pdev)
1995 {
1996 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
1997 	struct aac_dev *aac = (struct aac_dev *)shost_priv(shost);
1998 
1999 	if (aac_adapter_ioremap(aac, aac->base_size)) {
2000 
2001 		dev_err(&pdev->dev, "aacraid: ioremap failed\n");
2002 		/* remap failed, go back ... */
2003 		aac->comm_interface = AAC_COMM_PRODUCER;
2004 		if (aac_adapter_ioremap(aac, AAC_MIN_FOOTPRINT_SIZE)) {
2005 			dev_warn(&pdev->dev,
2006 				"aacraid: unable to map adapter.\n");
2007 
2008 			return;
2009 		}
2010 	}
2011 
2012 	msleep(10000);
2013 
2014 	aac_acquire_resources(aac);
2015 
2016 	/*
2017 	 * reset this flag to unblock ioctl() as it was set
2018 	 * at aac_send_shutdown() to block ioctls from upperlayer
2019 	 */
2020 	aac->adapter_shutdown = 0;
2021 	aac->handle_pci_error = 0;
2022 
2023 	scsi_host_unblock(shost, SDEV_RUNNING);
2024 	aac_scan_host(aac);
2025 	pci_save_state(pdev);
2026 
2027 	dev_err(&pdev->dev, "aacraid: PCI error - resume\n");
2028 }
2029 
2030 static struct pci_error_handlers aac_pci_err_handler = {
2031 	.error_detected		= aac_pci_error_detected,
2032 	.mmio_enabled		= aac_pci_mmio_enabled,
2033 	.slot_reset		= aac_pci_slot_reset,
2034 	.resume			= aac_pci_resume,
2035 };
2036 
2037 static SIMPLE_DEV_PM_OPS(aac_pm_ops, aac_suspend, aac_resume);
2038 
2039 static struct pci_driver aac_pci_driver = {
2040 	.name		= AAC_DRIVERNAME,
2041 	.id_table	= aac_pci_tbl,
2042 	.probe		= aac_probe_one,
2043 	.remove		= aac_remove_one,
2044 	.driver.pm      = &aac_pm_ops,
2045 	.shutdown	= aac_shutdown,
2046 	.err_handler    = &aac_pci_err_handler,
2047 };
2048 
aac_init(void)2049 static int __init aac_init(void)
2050 {
2051 	int error;
2052 
2053 	printk(KERN_INFO "Adaptec %s driver %s\n",
2054 	  AAC_DRIVERNAME, aac_driver_version);
2055 
2056 	error = pci_register_driver(&aac_pci_driver);
2057 	if (error < 0)
2058 		return error;
2059 
2060 	aac_init_char();
2061 
2062 
2063 	return 0;
2064 }
2065 
aac_exit(void)2066 static void __exit aac_exit(void)
2067 {
2068 	if (aac_cfg_major > -1)
2069 		unregister_chrdev(aac_cfg_major, "aac");
2070 	pci_unregister_driver(&aac_pci_driver);
2071 }
2072 
2073 module_init(aac_init);
2074 module_exit(aac_exit);
2075