xref: /openbmc/linux/drivers/scsi/aacraid/linit.c (revision 3e7759b94a0fcfdd6771caa64a37dda7ce825874)
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