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0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  *  Adaptec AAC series RAID controller driver
0004  *  (c) Copyright 2001 Red Hat Inc.
0005  *
0006  * based on the old aacraid driver that is..
0007  * Adaptec aacraid device driver for Linux.
0008  *
0009  * Copyright (c) 2000-2010 Adaptec, Inc.
0010  *               2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
0011  *       2016-2017 Microsemi Corp. (aacraid@microsemi.com)
0012  *
0013  * Module Name:
0014  *   linit.c
0015  *
0016  * Abstract: Linux Driver entry module for Adaptec RAID Array Controller
0017  */
0018 
0019 
0020 #include <linux/compat.h>
0021 #include <linux/blkdev.h>
0022 #include <linux/completion.h>
0023 #include <linux/init.h>
0024 #include <linux/interrupt.h>
0025 #include <linux/kernel.h>
0026 #include <linux/module.h>
0027 #include <linux/moduleparam.h>
0028 #include <linux/pci.h>
0029 #include <linux/aer.h>
0030 #include <linux/slab.h>
0031 #include <linux/mutex.h>
0032 #include <linux/spinlock.h>
0033 #include <linux/syscalls.h>
0034 #include <linux/delay.h>
0035 #include <linux/kthread.h>
0036 #include <linux/msdos_partition.h>
0037 
0038 #include <scsi/scsi.h>
0039 #include <scsi/scsi_cmnd.h>
0040 #include <scsi/scsi_device.h>
0041 #include <scsi/scsi_host.h>
0042 #include <scsi/scsi_tcq.h>
0043 #include <scsi/scsicam.h>
0044 #include <scsi/scsi_eh.h>
0045 
0046 #include "aacraid.h"
0047 
0048 #define AAC_DRIVER_VERSION      "1.2.1"
0049 #ifndef AAC_DRIVER_BRANCH
0050 #define AAC_DRIVER_BRANCH       ""
0051 #endif
0052 #define AAC_DRIVERNAME          "aacraid"
0053 
0054 #ifdef AAC_DRIVER_BUILD
0055 #define _str(x) #x
0056 #define str(x) _str(x)
0057 #define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION "[" str(AAC_DRIVER_BUILD) "]" AAC_DRIVER_BRANCH
0058 #else
0059 #define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION AAC_DRIVER_BRANCH
0060 #endif
0061 
0062 MODULE_AUTHOR("Red Hat Inc and Adaptec");
0063 MODULE_DESCRIPTION("Dell PERC2, 2/Si, 3/Si, 3/Di, "
0064            "Adaptec Advanced Raid Products, "
0065            "HP NetRAID-4M, IBM ServeRAID & ICP SCSI driver");
0066 MODULE_LICENSE("GPL");
0067 MODULE_VERSION(AAC_DRIVER_FULL_VERSION);
0068 
0069 static DEFINE_MUTEX(aac_mutex);
0070 static LIST_HEAD(aac_devices);
0071 static int aac_cfg_major = AAC_CHARDEV_UNREGISTERED;
0072 char aac_driver_version[] = AAC_DRIVER_FULL_VERSION;
0073 
0074 /*
0075  * Because of the way Linux names scsi devices, the order in this table has
0076  * become important.  Check for on-board Raid first, add-in cards second.
0077  *
0078  * Note: The last field is used to index into aac_drivers below.
0079  */
0080 static const struct pci_device_id aac_pci_tbl[] = {
0081     { 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */
0082     { 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */
0083     { 0x1028, 0x0003, 0x1028, 0x0003, 0, 0, 2 }, /* PERC 3/Si (SlimFast/PERC3Si */
0084     { 0x1028, 0x0004, 0x1028, 0x00d0, 0, 0, 3 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
0085     { 0x1028, 0x0002, 0x1028, 0x00d1, 0, 0, 4 }, /* PERC 3/Di (Viper/PERC3DiV) */
0086     { 0x1028, 0x0002, 0x1028, 0x00d9, 0, 0, 5 }, /* PERC 3/Di (Lexus/PERC3DiL) */
0087     { 0x1028, 0x000a, 0x1028, 0x0106, 0, 0, 6 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
0088     { 0x1028, 0x000a, 0x1028, 0x011b, 0, 0, 7 }, /* PERC 3/Di (Dagger/PERC3DiD) */
0089     { 0x1028, 0x000a, 0x1028, 0x0121, 0, 0, 8 }, /* PERC 3/Di (Boxster/PERC3DiB) */
0090     { 0x9005, 0x0283, 0x9005, 0x0283, 0, 0, 9 }, /* catapult */
0091     { 0x9005, 0x0284, 0x9005, 0x0284, 0, 0, 10 }, /* tomcat */
0092     { 0x9005, 0x0285, 0x9005, 0x0286, 0, 0, 11 }, /* Adaptec 2120S (Crusader) */
0093     { 0x9005, 0x0285, 0x9005, 0x0285, 0, 0, 12 }, /* Adaptec 2200S (Vulcan) */
0094     { 0x9005, 0x0285, 0x9005, 0x0287, 0, 0, 13 }, /* Adaptec 2200S (Vulcan-2m) */
0095     { 0x9005, 0x0285, 0x17aa, 0x0286, 0, 0, 14 }, /* Legend S220 (Legend Crusader) */
0096     { 0x9005, 0x0285, 0x17aa, 0x0287, 0, 0, 15 }, /* Legend S230 (Legend Vulcan) */
0097 
0098     { 0x9005, 0x0285, 0x9005, 0x0288, 0, 0, 16 }, /* Adaptec 3230S (Harrier) */
0099     { 0x9005, 0x0285, 0x9005, 0x0289, 0, 0, 17 }, /* Adaptec 3240S (Tornado) */
0100     { 0x9005, 0x0285, 0x9005, 0x028a, 0, 0, 18 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
0101     { 0x9005, 0x0285, 0x9005, 0x028b, 0, 0, 19 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
0102     { 0x9005, 0x0286, 0x9005, 0x028c, 0, 0, 20 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
0103     { 0x9005, 0x0286, 0x9005, 0x028d, 0, 0, 21 }, /* ASR-2130S (Lancer) */
0104     { 0x9005, 0x0286, 0x9005, 0x029b, 0, 0, 22 }, /* AAR-2820SA (Intruder) */
0105     { 0x9005, 0x0286, 0x9005, 0x029c, 0, 0, 23 }, /* AAR-2620SA (Intruder) */
0106     { 0x9005, 0x0286, 0x9005, 0x029d, 0, 0, 24 }, /* AAR-2420SA (Intruder) */
0107     { 0x9005, 0x0286, 0x9005, 0x029e, 0, 0, 25 }, /* ICP9024RO (Lancer) */
0108     { 0x9005, 0x0286, 0x9005, 0x029f, 0, 0, 26 }, /* ICP9014RO (Lancer) */
0109     { 0x9005, 0x0286, 0x9005, 0x02a0, 0, 0, 27 }, /* ICP9047MA (Lancer) */
0110     { 0x9005, 0x0286, 0x9005, 0x02a1, 0, 0, 28 }, /* ICP9087MA (Lancer) */
0111     { 0x9005, 0x0286, 0x9005, 0x02a3, 0, 0, 29 }, /* ICP5445AU (Hurricane44) */
0112     { 0x9005, 0x0285, 0x9005, 0x02a4, 0, 0, 30 }, /* ICP9085LI (Marauder-X) */
0113     { 0x9005, 0x0285, 0x9005, 0x02a5, 0, 0, 31 }, /* ICP5085BR (Marauder-E) */
0114     { 0x9005, 0x0286, 0x9005, 0x02a6, 0, 0, 32 }, /* ICP9067MA (Intruder-6) */
0115     { 0x9005, 0x0287, 0x9005, 0x0800, 0, 0, 33 }, /* Themisto Jupiter Platform */
0116     { 0x9005, 0x0200, 0x9005, 0x0200, 0, 0, 33 }, /* Themisto Jupiter Platform */
0117     { 0x9005, 0x0286, 0x9005, 0x0800, 0, 0, 34 }, /* Callisto Jupiter Platform */
0118     { 0x9005, 0x0285, 0x9005, 0x028e, 0, 0, 35 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
0119     { 0x9005, 0x0285, 0x9005, 0x028f, 0, 0, 36 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
0120     { 0x9005, 0x0285, 0x9005, 0x0290, 0, 0, 37 }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
0121     { 0x9005, 0x0285, 0x1028, 0x0291, 0, 0, 38 }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
0122     { 0x9005, 0x0285, 0x9005, 0x0292, 0, 0, 39 }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
0123     { 0x9005, 0x0285, 0x9005, 0x0293, 0, 0, 40 }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
0124     { 0x9005, 0x0285, 0x9005, 0x0294, 0, 0, 41 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
0125     { 0x9005, 0x0285, 0x103C, 0x3227, 0, 0, 42 }, /* AAR-2610SA PCI SATA 6ch */
0126     { 0x9005, 0x0285, 0x9005, 0x0296, 0, 0, 43 }, /* ASR-2240S (SabreExpress) */
0127     { 0x9005, 0x0285, 0x9005, 0x0297, 0, 0, 44 }, /* ASR-4005 */
0128     { 0x9005, 0x0285, 0x1014, 0x02F2, 0, 0, 45 }, /* IBM 8i (AvonPark) */
0129     { 0x9005, 0x0285, 0x1014, 0x0312, 0, 0, 45 }, /* IBM 8i (AvonPark Lite) */
0130     { 0x9005, 0x0286, 0x1014, 0x9580, 0, 0, 46 }, /* IBM 8k/8k-l8 (Aurora) */
0131     { 0x9005, 0x0286, 0x1014, 0x9540, 0, 0, 47 }, /* IBM 8k/8k-l4 (Aurora Lite) */
0132     { 0x9005, 0x0285, 0x9005, 0x0298, 0, 0, 48 }, /* ASR-4000 (BlackBird) */
0133     { 0x9005, 0x0285, 0x9005, 0x0299, 0, 0, 49 }, /* ASR-4800SAS (Marauder-X) */
0134     { 0x9005, 0x0285, 0x9005, 0x029a, 0, 0, 50 }, /* ASR-4805SAS (Marauder-E) */
0135     { 0x9005, 0x0286, 0x9005, 0x02a2, 0, 0, 51 }, /* ASR-3800 (Hurricane44) */
0136 
0137     { 0x9005, 0x0285, 0x1028, 0x0287, 0, 0, 52 }, /* Perc 320/DC*/
0138     { 0x1011, 0x0046, 0x9005, 0x0365, 0, 0, 53 }, /* Adaptec 5400S (Mustang)*/
0139     { 0x1011, 0x0046, 0x9005, 0x0364, 0, 0, 54 }, /* Adaptec 5400S (Mustang)*/
0140     { 0x1011, 0x0046, 0x9005, 0x1364, 0, 0, 55 }, /* Dell PERC2/QC */
0141     { 0x1011, 0x0046, 0x103c, 0x10c2, 0, 0, 56 }, /* HP NetRAID-4M */
0142 
0143     { 0x9005, 0x0285, 0x1028, PCI_ANY_ID, 0, 0, 57 }, /* Dell Catchall */
0144     { 0x9005, 0x0285, 0x17aa, PCI_ANY_ID, 0, 0, 58 }, /* Legend Catchall */
0145     { 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */
0146     { 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */
0147     { 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */
0148     { 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Series 6 (Tupelo) */
0149     { 0x9005, 0x028c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 63 }, /* Adaptec PMC Series 7 (Denali) */
0150     { 0x9005, 0x028d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 64 }, /* Adaptec PMC Series 8 */
0151     { 0,}
0152 };
0153 MODULE_DEVICE_TABLE(pci, aac_pci_tbl);
0154 
0155 /*
0156  * dmb - For now we add the number of channels to this structure.
0157  * In the future we should add a fib that reports the number of channels
0158  * for the card.  At that time we can remove the channels from here
0159  */
0160 static struct aac_driver_ident aac_drivers[] = {
0161     { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 2/Si (Iguana/PERC2Si) */
0162     { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Opal/PERC3Di) */
0163     { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Si (SlimFast/PERC3Si */
0164     { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
0165     { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Viper/PERC3DiV) */
0166     { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Lexus/PERC3DiL) */
0167     { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
0168     { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Dagger/PERC3DiD) */
0169     { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Boxster/PERC3DiB) */
0170     { aac_rx_init, "aacraid",  "ADAPTEC ", "catapult        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* catapult */
0171     { aac_rx_init, "aacraid",  "ADAPTEC ", "tomcat          ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* tomcat */
0172     { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2120S   ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG },             /* Adaptec 2120S (Crusader) */
0173     { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG },             /* Adaptec 2200S (Vulcan) */
0174     { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2200S (Vulcan-2m) */
0175     { aac_rx_init, "aacraid",  "Legend  ", "Legend S220     ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S220 (Legend Crusader) */
0176     { aac_rx_init, "aacraid",  "Legend  ", "Legend S230     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S230 (Legend Vulcan) */
0177 
0178     { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 3230S   ", 2 }, /* Adaptec 3230S (Harrier) */
0179     { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 3240S   ", 2 }, /* Adaptec 3240S (Tornado) */
0180     { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2020ZCR     ", 2 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
0181     { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2025ZCR     ", 2 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
0182     { aac_rkt_init, "aacraid",  "ADAPTEC ", "ASR-2230S PCI-X ", 2 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
0183     { aac_rkt_init, "aacraid",  "ADAPTEC ", "ASR-2130S PCI-X ", 1 }, /* ASR-2130S (Lancer) */
0184     { aac_rkt_init, "aacraid",  "ADAPTEC ", "AAR-2820SA      ", 1 }, /* AAR-2820SA (Intruder) */
0185     { aac_rkt_init, "aacraid",  "ADAPTEC ", "AAR-2620SA      ", 1 }, /* AAR-2620SA (Intruder) */
0186     { aac_rkt_init, "aacraid",  "ADAPTEC ", "AAR-2420SA      ", 1 }, /* AAR-2420SA (Intruder) */
0187     { aac_rkt_init, "aacraid",  "ICP     ", "ICP9024RO       ", 2 }, /* ICP9024RO (Lancer) */
0188     { aac_rkt_init, "aacraid",  "ICP     ", "ICP9014RO       ", 1 }, /* ICP9014RO (Lancer) */
0189     { aac_rkt_init, "aacraid",  "ICP     ", "ICP9047MA       ", 1 }, /* ICP9047MA (Lancer) */
0190     { aac_rkt_init, "aacraid",  "ICP     ", "ICP9087MA       ", 1 }, /* ICP9087MA (Lancer) */
0191     { aac_rkt_init, "aacraid",  "ICP     ", "ICP5445AU       ", 1 }, /* ICP5445AU (Hurricane44) */
0192     { aac_rx_init, "aacraid",  "ICP     ", "ICP9085LI       ", 1 }, /* ICP9085LI (Marauder-X) */
0193     { aac_rx_init, "aacraid",  "ICP     ", "ICP5085BR       ", 1 }, /* ICP5085BR (Marauder-E) */
0194     { aac_rkt_init, "aacraid",  "ICP     ", "ICP9067MA       ", 1 }, /* ICP9067MA (Intruder-6) */
0195     { NULL        , "aacraid",  "ADAPTEC ", "Themisto        ", 0, AAC_QUIRK_SLAVE }, /* Jupiter Platform */
0196     { aac_rkt_init, "aacraid",  "ADAPTEC ", "Callisto        ", 2, AAC_QUIRK_MASTER }, /* Jupiter Platform */
0197     { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2020SA       ", 1 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
0198     { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2025SA       ", 1 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
0199     { aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2410SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
0200     { aac_rx_init, "aacraid",  "DELL    ", "CERC SR2        ", 1, AAC_QUIRK_17SG }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
0201     { aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2810SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
0202     { aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-21610SA SATA", 1, AAC_QUIRK_17SG }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
0203     { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2026ZCR     ", 1 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
0204     { aac_rx_init, "aacraid",  "ADAPTEC ", "AAR-2610SA      ", 1 }, /* SATA 6Ch (Bearcat) */
0205     { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-2240S       ", 1 }, /* ASR-2240S (SabreExpress) */
0206     { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4005        ", 1 }, /* ASR-4005 */
0207     { aac_rx_init, "ServeRAID","IBM     ", "ServeRAID 8i    ", 1 }, /* IBM 8i (AvonPark) */
0208     { aac_rkt_init, "ServeRAID","IBM     ", "ServeRAID 8k-l8 ", 1 }, /* IBM 8k/8k-l8 (Aurora) */
0209     { aac_rkt_init, "ServeRAID","IBM     ", "ServeRAID 8k-l4 ", 1 }, /* IBM 8k/8k-l4 (Aurora Lite) */
0210     { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4000        ", 1 }, /* ASR-4000 (BlackBird & AvonPark) */
0211     { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4800SAS     ", 1 }, /* ASR-4800SAS (Marauder-X) */
0212     { aac_rx_init, "aacraid",  "ADAPTEC ", "ASR-4805SAS     ", 1 }, /* ASR-4805SAS (Marauder-E) */
0213     { aac_rkt_init, "aacraid",  "ADAPTEC ", "ASR-3800        ", 1 }, /* ASR-3800 (Hurricane44) */
0214 
0215     { aac_rx_init, "percraid", "DELL    ", "PERC 320/DC     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Perc 320/DC*/
0216     { aac_sa_init, "aacraid",  "ADAPTEC ", "Adaptec 5400S   ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
0217     { aac_sa_init, "aacraid",  "ADAPTEC ", "AAC-364         ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
0218     { aac_sa_init, "percraid", "DELL    ", "PERCRAID        ", 4, AAC_QUIRK_34SG }, /* Dell PERC2/QC */
0219     { aac_sa_init, "hpnraid",  "HP      ", "NetRAID         ", 4, AAC_QUIRK_34SG }, /* HP NetRAID-4M */
0220 
0221     { aac_rx_init, "aacraid",  "DELL    ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Dell Catchall */
0222     { aac_rx_init, "aacraid",  "Legend  ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend Catchall */
0223     { aac_rx_init, "aacraid",  "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Catch All */
0224     { aac_rkt_init, "aacraid", "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Rocket Catch All */
0225     { aac_nark_init, "aacraid", "ADAPTEC ", "RAID           ", 2 }, /* Adaptec NEMER/ARK Catch All */
0226     { aac_src_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 6 (Tupelo) */
0227     { aac_srcv_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 7 (Denali) */
0228     { aac_srcv_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 8 */
0229 };
0230 
0231 /**
0232  *  aac_queuecommand    -   queue a SCSI command
0233  *  @shost:     Scsi host to queue command on
0234  *  @cmd:       SCSI command to queue
0235  *
0236  *  Queues a command for execution by the associated Host Adapter.
0237  *
0238  *  TODO: unify with aac_scsi_cmd().
0239  */
0240 
0241 static int aac_queuecommand(struct Scsi_Host *shost,
0242                 struct scsi_cmnd *cmd)
0243 {
0244     aac_priv(cmd)->owner = AAC_OWNER_LOWLEVEL;
0245 
0246     return aac_scsi_cmd(cmd) ? FAILED : 0;
0247 }
0248 
0249 /**
0250  *  aac_info        -   Returns the host adapter name
0251  *  @shost:     Scsi host to report on
0252  *
0253  *  Returns a static string describing the device in question
0254  */
0255 
0256 static const char *aac_info(struct Scsi_Host *shost)
0257 {
0258     struct aac_dev *dev = (struct aac_dev *)shost->hostdata;
0259     return aac_drivers[dev->cardtype].name;
0260 }
0261 
0262 /**
0263  *  aac_get_driver_ident
0264  *  @devtype: index into lookup table
0265  *
0266  *  Returns a pointer to the entry in the driver lookup table.
0267  */
0268 
0269 struct aac_driver_ident* aac_get_driver_ident(int devtype)
0270 {
0271     return &aac_drivers[devtype];
0272 }
0273 
0274 /**
0275  *  aac_biosparm    -   return BIOS parameters for disk
0276  *  @sdev: The scsi device corresponding to the disk
0277  *  @bdev: the block device corresponding to the disk
0278  *  @capacity: the sector capacity of the disk
0279  *  @geom: geometry block to fill in
0280  *
0281  *  Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk.
0282  *  The default disk geometry is 64 heads, 32 sectors, and the appropriate
0283  *  number of cylinders so as not to exceed drive capacity.  In order for
0284  *  disks equal to or larger than 1 GB to be addressable by the BIOS
0285  *  without exceeding the BIOS limitation of 1024 cylinders, Extended
0286  *  Translation should be enabled.   With Extended Translation enabled,
0287  *  drives between 1 GB inclusive and 2 GB exclusive are given a disk
0288  *  geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive
0289  *  are given a disk geometry of 255 heads and 63 sectors.  However, if
0290  *  the BIOS detects that the Extended Translation setting does not match
0291  *  the geometry in the partition table, then the translation inferred
0292  *  from the partition table will be used by the BIOS, and a warning may
0293  *  be displayed.
0294  */
0295 
0296 static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
0297             sector_t capacity, int *geom)
0298 {
0299     struct diskparm *param = (struct diskparm *)geom;
0300     unsigned char *buf;
0301 
0302     dprintk((KERN_DEBUG "aac_biosparm.\n"));
0303 
0304     /*
0305      *  Assuming extended translation is enabled - #REVISIT#
0306      */
0307     if (capacity >= 2 * 1024 * 1024) { /* 1 GB in 512 byte sectors */
0308         if(capacity >= 4 * 1024 * 1024) { /* 2 GB in 512 byte sectors */
0309             param->heads = 255;
0310             param->sectors = 63;
0311         } else {
0312             param->heads = 128;
0313             param->sectors = 32;
0314         }
0315     } else {
0316         param->heads = 64;
0317         param->sectors = 32;
0318     }
0319 
0320     param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
0321 
0322     /*
0323      *  Read the first 1024 bytes from the disk device, if the boot
0324      *  sector partition table is valid, search for a partition table
0325      *  entry whose end_head matches one of the standard geometry
0326      *  translations ( 64/32, 128/32, 255/63 ).
0327      */
0328     buf = scsi_bios_ptable(bdev);
0329     if (!buf)
0330         return 0;
0331     if (*(__le16 *)(buf + 0x40) == cpu_to_le16(MSDOS_LABEL_MAGIC)) {
0332         struct msdos_partition *first = (struct msdos_partition *)buf;
0333         struct msdos_partition *entry = first;
0334         int saved_cylinders = param->cylinders;
0335         int num;
0336         unsigned char end_head, end_sec;
0337 
0338         for(num = 0; num < 4; num++) {
0339             end_head = entry->end_head;
0340             end_sec = entry->end_sector & 0x3f;
0341 
0342             if(end_head == 63) {
0343                 param->heads = 64;
0344                 param->sectors = 32;
0345                 break;
0346             } else if(end_head == 127) {
0347                 param->heads = 128;
0348                 param->sectors = 32;
0349                 break;
0350             } else if(end_head == 254) {
0351                 param->heads = 255;
0352                 param->sectors = 63;
0353                 break;
0354             }
0355             entry++;
0356         }
0357 
0358         if (num == 4) {
0359             end_head = first->end_head;
0360             end_sec = first->end_sector & 0x3f;
0361         }
0362 
0363         param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
0364         if (num < 4 && end_sec == param->sectors) {
0365             if (param->cylinders != saved_cylinders) {
0366                 dprintk((KERN_DEBUG "Adopting geometry: heads=%d, sectors=%d from partition table %d.\n",
0367                     param->heads, param->sectors, num));
0368             }
0369         } else if (end_head > 0 || end_sec > 0) {
0370             dprintk((KERN_DEBUG "Strange geometry: heads=%d, sectors=%d in partition table %d.\n",
0371                 end_head + 1, end_sec, num));
0372             dprintk((KERN_DEBUG "Using geometry: heads=%d, sectors=%d.\n",
0373                     param->heads, param->sectors));
0374         }
0375     }
0376     kfree(buf);
0377     return 0;
0378 }
0379 
0380 /**
0381  *  aac_slave_configure     -   compute queue depths
0382  *  @sdev:  SCSI device we are considering
0383  *
0384  *  Selects queue depths for each target device based on the host adapter's
0385  *  total capacity and the queue depth supported by the target device.
0386  *  A queue depth of one automatically disables tagged queueing.
0387  */
0388 
0389 static int aac_slave_configure(struct scsi_device *sdev)
0390 {
0391     struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
0392     int chn, tid;
0393     unsigned int depth = 0;
0394     unsigned int set_timeout = 0;
0395     int timeout = 0;
0396     bool set_qd_dev_type = false;
0397     u8 devtype = 0;
0398 
0399     chn = aac_logical_to_phys(sdev_channel(sdev));
0400     tid = sdev_id(sdev);
0401     if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS && aac->sa_firmware) {
0402         devtype = aac->hba_map[chn][tid].devtype;
0403 
0404         if (devtype == AAC_DEVTYPE_NATIVE_RAW) {
0405             depth = aac->hba_map[chn][tid].qd_limit;
0406             set_timeout = 1;
0407             goto common_config;
0408         }
0409         if (devtype == AAC_DEVTYPE_ARC_RAW) {
0410             set_qd_dev_type = true;
0411             set_timeout = 1;
0412             goto common_config;
0413         }
0414     }
0415 
0416     if (aac->jbod && (sdev->type == TYPE_DISK))
0417         sdev->removable = 1;
0418 
0419     if (sdev->type == TYPE_DISK
0420      && sdev_channel(sdev) != CONTAINER_CHANNEL
0421      && (!aac->jbod || sdev->inq_periph_qual)
0422      && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))) {
0423 
0424         if (expose_physicals == 0)
0425             return -ENXIO;
0426 
0427         if (expose_physicals < 0)
0428             sdev->no_uld_attach = 1;
0429     }
0430 
0431     if (sdev->tagged_supported
0432      &&  sdev->type == TYPE_DISK
0433      &&  (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
0434      && !sdev->no_uld_attach) {
0435 
0436         struct scsi_device * dev;
0437         struct Scsi_Host *host = sdev->host;
0438         unsigned num_lsu = 0;
0439         unsigned num_one = 0;
0440         unsigned cid;
0441 
0442         set_timeout = 1;
0443 
0444         for (cid = 0; cid < aac->maximum_num_containers; ++cid)
0445             if (aac->fsa_dev[cid].valid)
0446                 ++num_lsu;
0447 
0448         __shost_for_each_device(dev, host) {
0449             if (dev->tagged_supported
0450              && dev->type == TYPE_DISK
0451              && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
0452              && !dev->no_uld_attach) {
0453                 if ((sdev_channel(dev) != CONTAINER_CHANNEL)
0454                  || !aac->fsa_dev[sdev_id(dev)].valid) {
0455                     ++num_lsu;
0456                 }
0457             } else {
0458                 ++num_one;
0459             }
0460         }
0461 
0462         if (num_lsu == 0)
0463             ++num_lsu;
0464 
0465         depth = (host->can_queue - num_one) / num_lsu;
0466 
0467         if (sdev_channel(sdev) != NATIVE_CHANNEL)
0468             goto common_config;
0469 
0470         set_qd_dev_type = true;
0471 
0472     }
0473 
0474 common_config:
0475 
0476     /*
0477      * Check if SATA drive
0478      */
0479     if (set_qd_dev_type) {
0480         if (strncmp(sdev->vendor, "ATA", 3) == 0)
0481             depth = 32;
0482         else
0483             depth = 64;
0484     }
0485 
0486     /*
0487      * Firmware has an individual device recovery time typically
0488      * of 35 seconds, give us a margin. Thor devices can take longer in
0489      * error recovery, hence different value.
0490      */
0491     if (set_timeout) {
0492         timeout = aac->sa_firmware ? AAC_SA_TIMEOUT : AAC_ARC_TIMEOUT;
0493         blk_queue_rq_timeout(sdev->request_queue, timeout * HZ);
0494     }
0495 
0496     if (depth > 256)
0497         depth = 256;
0498     else if (depth < 1)
0499         depth = 1;
0500 
0501     scsi_change_queue_depth(sdev, depth);
0502 
0503     sdev->tagged_supported = 1;
0504 
0505     return 0;
0506 }
0507 
0508 /**
0509  *  aac_change_queue_depth      -   alter queue depths
0510  *  @sdev:  SCSI device we are considering
0511  *  @depth: desired queue depth
0512  *
0513  *  Alters queue depths for target device based on the host adapter's
0514  *  total capacity and the queue depth supported by the target device.
0515  */
0516 
0517 static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
0518 {
0519     struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
0520     int chn, tid, is_native_device = 0;
0521 
0522     chn = aac_logical_to_phys(sdev_channel(sdev));
0523     tid = sdev_id(sdev);
0524     if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS &&
0525         aac->hba_map[chn][tid].devtype == AAC_DEVTYPE_NATIVE_RAW)
0526         is_native_device = 1;
0527 
0528     if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
0529         (sdev_channel(sdev) == CONTAINER_CHANNEL)) {
0530         struct scsi_device * dev;
0531         struct Scsi_Host *host = sdev->host;
0532         unsigned num = 0;
0533 
0534         __shost_for_each_device(dev, host) {
0535             if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
0536                 (sdev_channel(dev) == CONTAINER_CHANNEL))
0537                 ++num;
0538             ++num;
0539         }
0540         if (num >= host->can_queue)
0541             num = host->can_queue - 1;
0542         if (depth > (host->can_queue - num))
0543             depth = host->can_queue - num;
0544         if (depth > 256)
0545             depth = 256;
0546         else if (depth < 2)
0547             depth = 2;
0548         return scsi_change_queue_depth(sdev, depth);
0549     } else if (is_native_device) {
0550         scsi_change_queue_depth(sdev, aac->hba_map[chn][tid].qd_limit);
0551     } else {
0552         scsi_change_queue_depth(sdev, 1);
0553     }
0554     return sdev->queue_depth;
0555 }
0556 
0557 static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf)
0558 {
0559     struct scsi_device *sdev = to_scsi_device(dev);
0560     struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
0561     if (sdev_channel(sdev) != CONTAINER_CHANNEL)
0562         return snprintf(buf, PAGE_SIZE, sdev->no_uld_attach
0563           ? "Hidden\n" :
0564           ((aac->jbod && (sdev->type == TYPE_DISK)) ? "JBOD\n" : ""));
0565     return snprintf(buf, PAGE_SIZE, "%s\n",
0566       get_container_type(aac->fsa_dev[sdev_id(sdev)].type));
0567 }
0568 
0569 static struct device_attribute aac_raid_level_attr = {
0570     .attr = {
0571         .name = "level",
0572         .mode = S_IRUGO,
0573     },
0574     .show = aac_show_raid_level
0575 };
0576 
0577 static ssize_t aac_show_unique_id(struct device *dev,
0578          struct device_attribute *attr, char *buf)
0579 {
0580     struct scsi_device *sdev = to_scsi_device(dev);
0581     struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
0582     unsigned char sn[16];
0583 
0584     memset(sn, 0, sizeof(sn));
0585 
0586     if (sdev_channel(sdev) == CONTAINER_CHANNEL)
0587         memcpy(sn, aac->fsa_dev[sdev_id(sdev)].identifier, sizeof(sn));
0588 
0589     return snprintf(buf, 16 * 2 + 2,
0590         "%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X\n",
0591         sn[0], sn[1], sn[2], sn[3],
0592         sn[4], sn[5], sn[6], sn[7],
0593         sn[8], sn[9], sn[10], sn[11],
0594         sn[12], sn[13], sn[14], sn[15]);
0595 }
0596 
0597 static struct device_attribute aac_unique_id_attr = {
0598     .attr = {
0599         .name = "unique_id",
0600         .mode = 0444,
0601     },
0602     .show = aac_show_unique_id
0603 };
0604 
0605 
0606 
0607 static struct attribute *aac_dev_attrs[] = {
0608     &aac_raid_level_attr.attr,
0609     &aac_unique_id_attr.attr,
0610     NULL,
0611 };
0612 
0613 ATTRIBUTE_GROUPS(aac_dev);
0614 
0615 static int aac_ioctl(struct scsi_device *sdev, unsigned int cmd,
0616              void __user *arg)
0617 {
0618     int retval;
0619     struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
0620     if (!capable(CAP_SYS_RAWIO))
0621         return -EPERM;
0622     retval = aac_adapter_check_health(dev);
0623     if (retval)
0624         return -EBUSY;
0625     return aac_do_ioctl(dev, cmd, arg);
0626 }
0627 
0628 struct fib_count_data {
0629     int mlcnt;
0630     int llcnt;
0631     int ehcnt;
0632     int fwcnt;
0633     int krlcnt;
0634 };
0635 
0636 static bool fib_count_iter(struct scsi_cmnd *scmnd, void *data)
0637 {
0638     struct fib_count_data *fib_count = data;
0639 
0640     switch (aac_priv(scmnd)->owner) {
0641     case AAC_OWNER_FIRMWARE:
0642         fib_count->fwcnt++;
0643         break;
0644     case AAC_OWNER_ERROR_HANDLER:
0645         fib_count->ehcnt++;
0646         break;
0647     case AAC_OWNER_LOWLEVEL:
0648         fib_count->llcnt++;
0649         break;
0650     case AAC_OWNER_MIDLEVEL:
0651         fib_count->mlcnt++;
0652         break;
0653     default:
0654         fib_count->krlcnt++;
0655         break;
0656     }
0657     return true;
0658 }
0659 
0660 /* Called during SCSI EH, so we don't need to block requests */
0661 static int get_num_of_incomplete_fibs(struct aac_dev *aac)
0662 {
0663     struct Scsi_Host *shost = aac->scsi_host_ptr;
0664     struct device *ctrl_dev;
0665     struct fib_count_data fcnt = { };
0666 
0667     scsi_host_busy_iter(shost, fib_count_iter, &fcnt);
0668 
0669     ctrl_dev = &aac->pdev->dev;
0670 
0671     dev_info(ctrl_dev, "outstanding cmd: midlevel-%d\n", fcnt.mlcnt);
0672     dev_info(ctrl_dev, "outstanding cmd: lowlevel-%d\n", fcnt.llcnt);
0673     dev_info(ctrl_dev, "outstanding cmd: error handler-%d\n", fcnt.ehcnt);
0674     dev_info(ctrl_dev, "outstanding cmd: firmware-%d\n", fcnt.fwcnt);
0675     dev_info(ctrl_dev, "outstanding cmd: kernel-%d\n", fcnt.krlcnt);
0676 
0677     return fcnt.mlcnt + fcnt.llcnt + fcnt.ehcnt + fcnt.fwcnt;
0678 }
0679 
0680 static int aac_eh_abort(struct scsi_cmnd* cmd)
0681 {
0682     struct aac_cmd_priv *cmd_priv = aac_priv(cmd);
0683     struct scsi_device * dev = cmd->device;
0684     struct Scsi_Host * host = dev->host;
0685     struct aac_dev * aac = (struct aac_dev *)host->hostdata;
0686     int count, found;
0687     u32 bus, cid;
0688     int ret = FAILED;
0689 
0690     if (aac_adapter_check_health(aac))
0691         return ret;
0692 
0693     bus = aac_logical_to_phys(scmd_channel(cmd));
0694     cid = scmd_id(cmd);
0695     if (aac->hba_map[bus][cid].devtype == AAC_DEVTYPE_NATIVE_RAW) {
0696         struct fib *fib;
0697         struct aac_hba_tm_req *tmf;
0698         int status;
0699         u64 address;
0700 
0701         pr_err("%s: Host adapter abort request (%d,%d,%d,%d)\n",
0702          AAC_DRIVERNAME,
0703          host->host_no, sdev_channel(dev), sdev_id(dev), (int)dev->lun);
0704 
0705         found = 0;
0706         for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
0707             fib = &aac->fibs[count];
0708             if (*(u8 *)fib->hw_fib_va != 0 &&
0709                 (fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) &&
0710                 (fib->callback_data == cmd)) {
0711                 found = 1;
0712                 break;
0713             }
0714         }
0715         if (!found)
0716             return ret;
0717 
0718         /* start a HBA_TMF_ABORT_TASK TMF request */
0719         fib = aac_fib_alloc(aac);
0720         if (!fib)
0721             return ret;
0722 
0723         tmf = (struct aac_hba_tm_req *)fib->hw_fib_va;
0724         memset(tmf, 0, sizeof(*tmf));
0725         tmf->tmf = HBA_TMF_ABORT_TASK;
0726         tmf->it_nexus = aac->hba_map[bus][cid].rmw_nexus;
0727         tmf->lun[1] = cmd->device->lun;
0728 
0729         address = (u64)fib->hw_error_pa;
0730         tmf->error_ptr_hi = cpu_to_le32((u32)(address >> 32));
0731         tmf->error_ptr_lo = cpu_to_le32((u32)(address & 0xffffffff));
0732         tmf->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
0733 
0734         fib->hbacmd_size = sizeof(*tmf);
0735         cmd_priv->sent_command = 0;
0736 
0737         status = aac_hba_send(HBA_IU_TYPE_SCSI_TM_REQ, fib,
0738                   (fib_callback) aac_hba_callback,
0739                   (void *) cmd);
0740         if (status != -EINPROGRESS) {
0741             aac_fib_complete(fib);
0742             aac_fib_free(fib);
0743             return ret;
0744         }
0745         /* Wait up to 15 secs for completion */
0746         for (count = 0; count < 15; ++count) {
0747             if (cmd_priv->sent_command) {
0748                 ret = SUCCESS;
0749                 break;
0750             }
0751             msleep(1000);
0752         }
0753 
0754         if (ret != SUCCESS)
0755             pr_err("%s: Host adapter abort request timed out\n",
0756             AAC_DRIVERNAME);
0757     } else {
0758         pr_err(
0759             "%s: Host adapter abort request.\n"
0760             "%s: Outstanding commands on (%d,%d,%d,%d):\n",
0761             AAC_DRIVERNAME, AAC_DRIVERNAME,
0762             host->host_no, sdev_channel(dev), sdev_id(dev),
0763             (int)dev->lun);
0764         switch (cmd->cmnd[0]) {
0765         case SERVICE_ACTION_IN_16:
0766             if (!(aac->raw_io_interface) ||
0767                 !(aac->raw_io_64) ||
0768                 ((cmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
0769                 break;
0770             fallthrough;
0771         case INQUIRY:
0772         case READ_CAPACITY:
0773             /*
0774              * Mark associated FIB to not complete,
0775              * eh handler does this
0776              */
0777             for (count = 0;
0778                 count < (host->can_queue + AAC_NUM_MGT_FIB);
0779                 ++count) {
0780                 struct fib *fib = &aac->fibs[count];
0781 
0782                 if (fib->hw_fib_va->header.XferState &&
0783                 (fib->flags & FIB_CONTEXT_FLAG) &&
0784                 (fib->callback_data == cmd)) {
0785                     fib->flags |=
0786                         FIB_CONTEXT_FLAG_TIMED_OUT;
0787                     cmd_priv->owner =
0788                         AAC_OWNER_ERROR_HANDLER;
0789                     ret = SUCCESS;
0790                 }
0791             }
0792             break;
0793         case TEST_UNIT_READY:
0794             /*
0795              * Mark associated FIB to not complete,
0796              * eh handler does this
0797              */
0798             for (count = 0;
0799                 count < (host->can_queue + AAC_NUM_MGT_FIB);
0800                 ++count) {
0801                 struct scsi_cmnd *command;
0802                 struct fib *fib = &aac->fibs[count];
0803 
0804                 command = fib->callback_data;
0805 
0806                 if ((fib->hw_fib_va->header.XferState &
0807                     cpu_to_le32
0808                     (Async | NoResponseExpected)) &&
0809                     (fib->flags & FIB_CONTEXT_FLAG) &&
0810                     ((command)) &&
0811                     (command->device == cmd->device)) {
0812                     fib->flags |=
0813                         FIB_CONTEXT_FLAG_TIMED_OUT;
0814                     aac_priv(command)->owner =
0815                         AAC_OWNER_ERROR_HANDLER;
0816                     if (command == cmd)
0817                         ret = SUCCESS;
0818                 }
0819             }
0820             break;
0821         }
0822     }
0823     return ret;
0824 }
0825 
0826 static u8 aac_eh_tmf_lun_reset_fib(struct aac_hba_map_info *info,
0827                    struct fib *fib, u64 tmf_lun)
0828 {
0829     struct aac_hba_tm_req *tmf;
0830     u64 address;
0831 
0832     /* start a HBA_TMF_LUN_RESET TMF request */
0833     tmf = (struct aac_hba_tm_req *)fib->hw_fib_va;
0834     memset(tmf, 0, sizeof(*tmf));
0835     tmf->tmf = HBA_TMF_LUN_RESET;
0836     tmf->it_nexus = info->rmw_nexus;
0837     int_to_scsilun(tmf_lun, (struct scsi_lun *)tmf->lun);
0838 
0839     address = (u64)fib->hw_error_pa;
0840     tmf->error_ptr_hi = cpu_to_le32
0841         ((u32)(address >> 32));
0842     tmf->error_ptr_lo = cpu_to_le32
0843         ((u32)(address & 0xffffffff));
0844     tmf->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
0845     fib->hbacmd_size = sizeof(*tmf);
0846 
0847     return HBA_IU_TYPE_SCSI_TM_REQ;
0848 }
0849 
0850 static u8 aac_eh_tmf_hard_reset_fib(struct aac_hba_map_info *info,
0851                     struct fib *fib)
0852 {
0853     struct aac_hba_reset_req *rst;
0854     u64 address;
0855 
0856     /* already tried, start a hard reset now */
0857     rst = (struct aac_hba_reset_req *)fib->hw_fib_va;
0858     memset(rst, 0, sizeof(*rst));
0859     rst->it_nexus = info->rmw_nexus;
0860 
0861     address = (u64)fib->hw_error_pa;
0862     rst->error_ptr_hi = cpu_to_le32((u32)(address >> 32));
0863     rst->error_ptr_lo = cpu_to_le32((u32)(address & 0xffffffff));
0864     rst->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
0865     fib->hbacmd_size = sizeof(*rst);
0866 
0867     return HBA_IU_TYPE_SATA_REQ;
0868 }
0869 
0870 static void aac_tmf_callback(void *context, struct fib *fibptr)
0871 {
0872     struct aac_hba_resp *err =
0873         &((struct aac_native_hba *)fibptr->hw_fib_va)->resp.err;
0874     struct aac_hba_map_info *info = context;
0875     int res;
0876 
0877     switch (err->service_response) {
0878     case HBA_RESP_SVCRES_TMF_REJECTED:
0879         res = -1;
0880         break;
0881     case HBA_RESP_SVCRES_TMF_LUN_INVALID:
0882         res = 0;
0883         break;
0884     case HBA_RESP_SVCRES_TMF_COMPLETE:
0885     case HBA_RESP_SVCRES_TMF_SUCCEEDED:
0886         res = 0;
0887         break;
0888     default:
0889         res = -2;
0890         break;
0891     }
0892     aac_fib_complete(fibptr);
0893 
0894     info->reset_state = res;
0895 }
0896 
0897 /*
0898  *  aac_eh_dev_reset    - Device reset command handling
0899  *  @scsi_cmd:  SCSI command block causing the reset
0900  *
0901  */
0902 static int aac_eh_dev_reset(struct scsi_cmnd *cmd)
0903 {
0904     struct scsi_device * dev = cmd->device;
0905     struct Scsi_Host * host = dev->host;
0906     struct aac_dev * aac = (struct aac_dev *)host->hostdata;
0907     struct aac_hba_map_info *info;
0908     int count;
0909     u32 bus, cid;
0910     struct fib *fib;
0911     int ret = FAILED;
0912     int status;
0913     u8 command;
0914 
0915     bus = aac_logical_to_phys(scmd_channel(cmd));
0916     cid = scmd_id(cmd);
0917 
0918     if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS)
0919         return FAILED;
0920 
0921     info = &aac->hba_map[bus][cid];
0922 
0923     if (!(info->devtype == AAC_DEVTYPE_NATIVE_RAW &&
0924      !(info->reset_state > 0)))
0925         return FAILED;
0926 
0927     pr_err("%s: Host device reset request. SCSI hang ?\n",
0928            AAC_DRIVERNAME);
0929 
0930     fib = aac_fib_alloc(aac);
0931     if (!fib)
0932         return ret;
0933 
0934     /* start a HBA_TMF_LUN_RESET TMF request */
0935     command = aac_eh_tmf_lun_reset_fib(info, fib, dev->lun);
0936 
0937     info->reset_state = 1;
0938 
0939     status = aac_hba_send(command, fib,
0940                   (fib_callback) aac_tmf_callback,
0941                   (void *) info);
0942     if (status != -EINPROGRESS) {
0943         info->reset_state = 0;
0944         aac_fib_complete(fib);
0945         aac_fib_free(fib);
0946         return ret;
0947     }
0948     /* Wait up to 15 seconds for completion */
0949     for (count = 0; count < 15; ++count) {
0950         if (info->reset_state == 0) {
0951             ret = info->reset_state == 0 ? SUCCESS : FAILED;
0952             break;
0953         }
0954         msleep(1000);
0955     }
0956 
0957     return ret;
0958 }
0959 
0960 /*
0961  *  aac_eh_target_reset - Target reset command handling
0962  *  @scsi_cmd:  SCSI command block causing the reset
0963  *
0964  */
0965 static int aac_eh_target_reset(struct scsi_cmnd *cmd)
0966 {
0967     struct scsi_device * dev = cmd->device;
0968     struct Scsi_Host * host = dev->host;
0969     struct aac_dev * aac = (struct aac_dev *)host->hostdata;
0970     struct aac_hba_map_info *info;
0971     int count;
0972     u32 bus, cid;
0973     int ret = FAILED;
0974     struct fib *fib;
0975     int status;
0976     u8 command;
0977 
0978     bus = aac_logical_to_phys(scmd_channel(cmd));
0979     cid = scmd_id(cmd);
0980 
0981     if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS)
0982         return FAILED;
0983 
0984     info = &aac->hba_map[bus][cid];
0985 
0986     if (!(info->devtype == AAC_DEVTYPE_NATIVE_RAW &&
0987      !(info->reset_state > 0)))
0988         return FAILED;
0989 
0990     pr_err("%s: Host target reset request. SCSI hang ?\n",
0991            AAC_DRIVERNAME);
0992 
0993     fib = aac_fib_alloc(aac);
0994     if (!fib)
0995         return ret;
0996 
0997 
0998     /* already tried, start a hard reset now */
0999     command = aac_eh_tmf_hard_reset_fib(info, fib);
1000 
1001     info->reset_state = 2;
1002 
1003     status = aac_hba_send(command, fib,
1004                   (fib_callback) aac_tmf_callback,
1005                   (void *) info);
1006 
1007     if (status != -EINPROGRESS) {
1008         info->reset_state = 0;
1009         aac_fib_complete(fib);
1010         aac_fib_free(fib);
1011         return ret;
1012     }
1013 
1014     /* Wait up to 15 seconds for completion */
1015     for (count = 0; count < 15; ++count) {
1016         if (info->reset_state <= 0) {
1017             ret = info->reset_state == 0 ? SUCCESS : FAILED;
1018             break;
1019         }
1020         msleep(1000);
1021     }
1022 
1023     return ret;
1024 }
1025 
1026 /*
1027  *  aac_eh_bus_reset    - Bus reset command handling
1028  *  @scsi_cmd:  SCSI command block causing the reset
1029  *
1030  */
1031 static int aac_eh_bus_reset(struct scsi_cmnd* cmd)
1032 {
1033     struct scsi_device * dev = cmd->device;
1034     struct Scsi_Host * host = dev->host;
1035     struct aac_dev * aac = (struct aac_dev *)host->hostdata;
1036     int count;
1037     u32 cmd_bus;
1038     int status = 0;
1039 
1040 
1041     cmd_bus = aac_logical_to_phys(scmd_channel(cmd));
1042     /* Mark the assoc. FIB to not complete, eh handler does this */
1043     for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
1044         struct fib *fib = &aac->fibs[count];
1045 
1046         if (fib->hw_fib_va->header.XferState &&
1047             (fib->flags & FIB_CONTEXT_FLAG) &&
1048             (fib->flags & FIB_CONTEXT_FLAG_SCSI_CMD)) {
1049             struct aac_hba_map_info *info;
1050             u32 bus, cid;
1051 
1052             cmd = (struct scsi_cmnd *)fib->callback_data;
1053             bus = aac_logical_to_phys(scmd_channel(cmd));
1054             if (bus != cmd_bus)
1055                 continue;
1056             cid = scmd_id(cmd);
1057             info = &aac->hba_map[bus][cid];
1058             if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS ||
1059                 info->devtype != AAC_DEVTYPE_NATIVE_RAW) {
1060                 fib->flags |= FIB_CONTEXT_FLAG_EH_RESET;
1061                 aac_priv(cmd)->owner = AAC_OWNER_ERROR_HANDLER;
1062             }
1063         }
1064     }
1065 
1066     pr_err("%s: Host bus reset request. SCSI hang ?\n", AAC_DRIVERNAME);
1067 
1068     /*
1069      * Check the health of the controller
1070      */
1071     status = aac_adapter_check_health(aac);
1072     if (status)
1073         dev_err(&aac->pdev->dev, "Adapter health - %d\n", status);
1074 
1075     count = get_num_of_incomplete_fibs(aac);
1076     return (count == 0) ? SUCCESS : FAILED;
1077 }
1078 
1079 /*
1080  *  aac_eh_host_reset   - Host reset command handling
1081  *  @scsi_cmd:  SCSI command block causing the reset
1082  *
1083  */
1084 static int aac_eh_host_reset(struct scsi_cmnd *cmd)
1085 {
1086     struct scsi_device * dev = cmd->device;
1087     struct Scsi_Host * host = dev->host;
1088     struct aac_dev * aac = (struct aac_dev *)host->hostdata;
1089     int ret = FAILED;
1090     __le32 supported_options2 = 0;
1091     bool is_mu_reset;
1092     bool is_ignore_reset;
1093     bool is_doorbell_reset;
1094 
1095     /*
1096      * Check if reset is supported by the firmware
1097      */
1098     supported_options2 = aac->supplement_adapter_info.supported_options2;
1099     is_mu_reset = supported_options2 & AAC_OPTION_MU_RESET;
1100     is_doorbell_reset = supported_options2 & AAC_OPTION_DOORBELL_RESET;
1101     is_ignore_reset = supported_options2 & AAC_OPTION_IGNORE_RESET;
1102     /*
1103      * This adapter needs a blind reset, only do so for
1104      * Adapters that support a register, instead of a commanded,
1105      * reset.
1106      */
1107     if ((is_mu_reset || is_doorbell_reset)
1108      && aac_check_reset
1109      && (aac_check_reset != -1 || !is_ignore_reset)) {
1110         /* Bypass wait for command quiesce */
1111         if (aac_reset_adapter(aac, 2, IOP_HWSOFT_RESET) == 0)
1112             ret = SUCCESS;
1113     }
1114     /*
1115      * Reset EH state
1116      */
1117     if (ret == SUCCESS) {
1118         int bus, cid;
1119         struct aac_hba_map_info *info;
1120 
1121         for (bus = 0; bus < AAC_MAX_BUSES; bus++) {
1122             for (cid = 0; cid < AAC_MAX_TARGETS; cid++) {
1123                 info = &aac->hba_map[bus][cid];
1124                 if (info->devtype == AAC_DEVTYPE_NATIVE_RAW)
1125                     info->reset_state = 0;
1126             }
1127         }
1128     }
1129     return ret;
1130 }
1131 
1132 /**
1133  *  aac_cfg_open        -   open a configuration file
1134  *  @inode: inode being opened
1135  *  @file: file handle attached
1136  *
1137  *  Called when the configuration device is opened. Does the needed
1138  *  set up on the handle and then returns
1139  *
1140  *  Bugs: This needs extending to check a given adapter is present
1141  *  so we can support hot plugging, and to ref count adapters.
1142  */
1143 
1144 static int aac_cfg_open(struct inode *inode, struct file *file)
1145 {
1146     struct aac_dev *aac;
1147     unsigned minor_number = iminor(inode);
1148     int err = -ENODEV;
1149 
1150     mutex_lock(&aac_mutex);  /* BKL pushdown: nothing else protects this list */
1151     list_for_each_entry(aac, &aac_devices, entry) {
1152         if (aac->id == minor_number) {
1153             file->private_data = aac;
1154             err = 0;
1155             break;
1156         }
1157     }
1158     mutex_unlock(&aac_mutex);
1159 
1160     return err;
1161 }
1162 
1163 /**
1164  *  aac_cfg_ioctl       -   AAC configuration request
1165  *  @file: file handle
1166  *  @cmd: ioctl command code
1167  *  @arg: argument
1168  *
1169  *  Handles a configuration ioctl. Currently this involves wrapping it
1170  *  up and feeding it into the nasty windowsalike glue layer.
1171  *
1172  *  Bugs: Needs locking against parallel ioctls lower down
1173  *  Bugs: Needs to handle hot plugging
1174  */
1175 
1176 static long aac_cfg_ioctl(struct file *file,
1177         unsigned int cmd, unsigned long arg)
1178 {
1179     struct aac_dev *aac = (struct aac_dev *)file->private_data;
1180 
1181     if (!capable(CAP_SYS_RAWIO))
1182         return -EPERM;
1183 
1184     return aac_do_ioctl(aac, cmd, (void __user *)arg);
1185 }
1186 
1187 static ssize_t aac_show_model(struct device *device,
1188                   struct device_attribute *attr, char *buf)
1189 {
1190     struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1191     int len;
1192 
1193     if (dev->supplement_adapter_info.adapter_type_text[0]) {
1194         char *cp = dev->supplement_adapter_info.adapter_type_text;
1195         while (*cp && *cp != ' ')
1196             ++cp;
1197         while (*cp == ' ')
1198             ++cp;
1199         len = snprintf(buf, PAGE_SIZE, "%s\n", cp);
1200     } else
1201         len = snprintf(buf, PAGE_SIZE, "%s\n",
1202           aac_drivers[dev->cardtype].model);
1203     return len;
1204 }
1205 
1206 static ssize_t aac_show_vendor(struct device *device,
1207                    struct device_attribute *attr, char *buf)
1208 {
1209     struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1210     struct aac_supplement_adapter_info *sup_adap_info;
1211     int len;
1212 
1213     sup_adap_info = &dev->supplement_adapter_info;
1214     if (sup_adap_info->adapter_type_text[0]) {
1215         char *cp = sup_adap_info->adapter_type_text;
1216         while (*cp && *cp != ' ')
1217             ++cp;
1218         len = snprintf(buf, PAGE_SIZE, "%.*s\n",
1219             (int)(cp - (char *)sup_adap_info->adapter_type_text),
1220                     sup_adap_info->adapter_type_text);
1221     } else
1222         len = snprintf(buf, PAGE_SIZE, "%s\n",
1223             aac_drivers[dev->cardtype].vname);
1224     return len;
1225 }
1226 
1227 static ssize_t aac_show_flags(struct device *cdev,
1228                   struct device_attribute *attr, char *buf)
1229 {
1230     int len = 0;
1231     struct aac_dev *dev = (struct aac_dev*)class_to_shost(cdev)->hostdata;
1232 
1233     if (nblank(dprintk(x)))
1234         len = snprintf(buf, PAGE_SIZE, "dprintk\n");
1235 #ifdef AAC_DETAILED_STATUS_INFO
1236     len += scnprintf(buf + len, PAGE_SIZE - len,
1237              "AAC_DETAILED_STATUS_INFO\n");
1238 #endif
1239     if (dev->raw_io_interface && dev->raw_io_64)
1240         len += scnprintf(buf + len, PAGE_SIZE - len,
1241                  "SAI_READ_CAPACITY_16\n");
1242     if (dev->jbod)
1243         len += scnprintf(buf + len, PAGE_SIZE - len,
1244                  "SUPPORTED_JBOD\n");
1245     if (dev->supplement_adapter_info.supported_options2 &
1246         AAC_OPTION_POWER_MANAGEMENT)
1247         len += scnprintf(buf + len, PAGE_SIZE - len,
1248                  "SUPPORTED_POWER_MANAGEMENT\n");
1249     if (dev->msi)
1250         len += scnprintf(buf + len, PAGE_SIZE - len, "PCI_HAS_MSI\n");
1251     return len;
1252 }
1253 
1254 static ssize_t aac_show_kernel_version(struct device *device,
1255                        struct device_attribute *attr,
1256                        char *buf)
1257 {
1258     struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1259     int len, tmp;
1260 
1261     tmp = le32_to_cpu(dev->adapter_info.kernelrev);
1262     len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
1263       tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
1264       le32_to_cpu(dev->adapter_info.kernelbuild));
1265     return len;
1266 }
1267 
1268 static ssize_t aac_show_monitor_version(struct device *device,
1269                     struct device_attribute *attr,
1270                     char *buf)
1271 {
1272     struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1273     int len, tmp;
1274 
1275     tmp = le32_to_cpu(dev->adapter_info.monitorrev);
1276     len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
1277       tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
1278       le32_to_cpu(dev->adapter_info.monitorbuild));
1279     return len;
1280 }
1281 
1282 static ssize_t aac_show_bios_version(struct device *device,
1283                      struct device_attribute *attr,
1284                      char *buf)
1285 {
1286     struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1287     int len, tmp;
1288 
1289     tmp = le32_to_cpu(dev->adapter_info.biosrev);
1290     len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
1291       tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
1292       le32_to_cpu(dev->adapter_info.biosbuild));
1293     return len;
1294 }
1295 
1296 static ssize_t aac_show_driver_version(struct device *device,
1297                     struct device_attribute *attr,
1298                     char *buf)
1299 {
1300     return snprintf(buf, PAGE_SIZE, "%s\n", aac_driver_version);
1301 }
1302 
1303 static ssize_t aac_show_serial_number(struct device *device,
1304                    struct device_attribute *attr, char *buf)
1305 {
1306     struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1307     int len = 0;
1308 
1309     if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
1310         len = snprintf(buf, 16, "%06X\n",
1311           le32_to_cpu(dev->adapter_info.serial[0]));
1312     if (len &&
1313       !memcmp(&dev->supplement_adapter_info.mfg_pcba_serial_no[
1314         sizeof(dev->supplement_adapter_info.mfg_pcba_serial_no)-len],
1315       buf, len-1))
1316         len = snprintf(buf, 16, "%.*s\n",
1317           (int)sizeof(dev->supplement_adapter_info.mfg_pcba_serial_no),
1318           dev->supplement_adapter_info.mfg_pcba_serial_no);
1319 
1320     return min(len, 16);
1321 }
1322 
1323 static ssize_t aac_show_max_channel(struct device *device,
1324                     struct device_attribute *attr, char *buf)
1325 {
1326     return snprintf(buf, PAGE_SIZE, "%d\n",
1327       class_to_shost(device)->max_channel);
1328 }
1329 
1330 static ssize_t aac_show_max_id(struct device *device,
1331                    struct device_attribute *attr, char *buf)
1332 {
1333     return snprintf(buf, PAGE_SIZE, "%d\n",
1334       class_to_shost(device)->max_id);
1335 }
1336 
1337 static ssize_t aac_store_reset_adapter(struct device *device,
1338                        struct device_attribute *attr,
1339                        const char *buf, size_t count)
1340 {
1341     int retval = -EACCES;
1342 
1343     if (!capable(CAP_SYS_ADMIN))
1344         return retval;
1345 
1346     retval = aac_reset_adapter(shost_priv(class_to_shost(device)),
1347                     buf[0] == '!', IOP_HWSOFT_RESET);
1348     if (retval >= 0)
1349         retval = count;
1350 
1351     return retval;
1352 }
1353 
1354 static ssize_t aac_show_reset_adapter(struct device *device,
1355                       struct device_attribute *attr,
1356                       char *buf)
1357 {
1358     struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
1359     int len, tmp;
1360 
1361     tmp = aac_adapter_check_health(dev);
1362     if ((tmp == 0) && dev->in_reset)
1363         tmp = -EBUSY;
1364     len = snprintf(buf, PAGE_SIZE, "0x%x\n", tmp);
1365     return len;
1366 }
1367 
1368 static struct device_attribute aac_model = {
1369     .attr = {
1370         .name = "model",
1371         .mode = S_IRUGO,
1372     },
1373     .show = aac_show_model,
1374 };
1375 static struct device_attribute aac_vendor = {
1376     .attr = {
1377         .name = "vendor",
1378         .mode = S_IRUGO,
1379     },
1380     .show = aac_show_vendor,
1381 };
1382 static struct device_attribute aac_flags = {
1383     .attr = {
1384         .name = "flags",
1385         .mode = S_IRUGO,
1386     },
1387     .show = aac_show_flags,
1388 };
1389 static struct device_attribute aac_kernel_version = {
1390     .attr = {
1391         .name = "hba_kernel_version",
1392         .mode = S_IRUGO,
1393     },
1394     .show = aac_show_kernel_version,
1395 };
1396 static struct device_attribute aac_monitor_version = {
1397     .attr = {
1398         .name = "hba_monitor_version",
1399         .mode = S_IRUGO,
1400     },
1401     .show = aac_show_monitor_version,
1402 };
1403 static struct device_attribute aac_bios_version = {
1404     .attr = {
1405         .name = "hba_bios_version",
1406         .mode = S_IRUGO,
1407     },
1408     .show = aac_show_bios_version,
1409 };
1410 static struct device_attribute aac_lld_version = {
1411     .attr = {
1412         .name = "driver_version",
1413         .mode = 0444,
1414     },
1415     .show = aac_show_driver_version,
1416 };
1417 static struct device_attribute aac_serial_number = {
1418     .attr = {
1419         .name = "serial_number",
1420         .mode = S_IRUGO,
1421     },
1422     .show = aac_show_serial_number,
1423 };
1424 static struct device_attribute aac_max_channel = {
1425     .attr = {
1426         .name = "max_channel",
1427         .mode = S_IRUGO,
1428     },
1429     .show = aac_show_max_channel,
1430 };
1431 static struct device_attribute aac_max_id = {
1432     .attr = {
1433         .name = "max_id",
1434         .mode = S_IRUGO,
1435     },
1436     .show = aac_show_max_id,
1437 };
1438 static struct device_attribute aac_reset = {
1439     .attr = {
1440         .name = "reset_host",
1441         .mode = S_IWUSR|S_IRUGO,
1442     },
1443     .store = aac_store_reset_adapter,
1444     .show = aac_show_reset_adapter,
1445 };
1446 
1447 static struct attribute *aac_host_attrs[] = {
1448     &aac_model.attr,
1449     &aac_vendor.attr,
1450     &aac_flags.attr,
1451     &aac_kernel_version.attr,
1452     &aac_monitor_version.attr,
1453     &aac_bios_version.attr,
1454     &aac_lld_version.attr,
1455     &aac_serial_number.attr,
1456     &aac_max_channel.attr,
1457     &aac_max_id.attr,
1458     &aac_reset.attr,
1459     NULL
1460 };
1461 
1462 ATTRIBUTE_GROUPS(aac_host);
1463 
1464 ssize_t aac_get_serial_number(struct device *device, char *buf)
1465 {
1466     return aac_show_serial_number(device, &aac_serial_number, buf);
1467 }
1468 
1469 static const struct file_operations aac_cfg_fops = {
1470     .owner      = THIS_MODULE,
1471     .unlocked_ioctl = aac_cfg_ioctl,
1472 #ifdef CONFIG_COMPAT
1473     .compat_ioctl   = aac_cfg_ioctl,
1474 #endif
1475     .open       = aac_cfg_open,
1476     .llseek     = noop_llseek,
1477 };
1478 
1479 static struct scsi_host_template aac_driver_template = {
1480     .module             = THIS_MODULE,
1481     .name               = "AAC",
1482     .proc_name          = AAC_DRIVERNAME,
1483     .info               = aac_info,
1484     .ioctl              = aac_ioctl,
1485 #ifdef CONFIG_COMPAT
1486     .compat_ioctl           = aac_ioctl,
1487 #endif
1488     .queuecommand           = aac_queuecommand,
1489     .bios_param         = aac_biosparm,
1490     .shost_groups           = aac_host_groups,
1491     .slave_configure        = aac_slave_configure,
1492     .change_queue_depth     = aac_change_queue_depth,
1493     .sdev_groups            = aac_dev_groups,
1494     .eh_abort_handler       = aac_eh_abort,
1495     .eh_device_reset_handler    = aac_eh_dev_reset,
1496     .eh_target_reset_handler    = aac_eh_target_reset,
1497     .eh_bus_reset_handler       = aac_eh_bus_reset,
1498     .eh_host_reset_handler      = aac_eh_host_reset,
1499     .can_queue          = AAC_NUM_IO_FIB,
1500     .this_id            = MAXIMUM_NUM_CONTAINERS,
1501     .sg_tablesize           = 16,
1502     .max_sectors            = 128,
1503 #if (AAC_NUM_IO_FIB > 256)
1504     .cmd_per_lun            = 256,
1505 #else
1506     .cmd_per_lun            = AAC_NUM_IO_FIB,
1507 #endif
1508     .emulated           = 1,
1509     .no_write_same          = 1,
1510     .cmd_size           = sizeof(struct aac_cmd_priv),
1511 };
1512 
1513 static void __aac_shutdown(struct aac_dev * aac)
1514 {
1515     int i;
1516 
1517     mutex_lock(&aac->ioctl_mutex);
1518     aac->adapter_shutdown = 1;
1519     mutex_unlock(&aac->ioctl_mutex);
1520 
1521     if (aac->aif_thread) {
1522         int i;
1523         /* Clear out events first */
1524         for (i = 0; i < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); i++) {
1525             struct fib *fib = &aac->fibs[i];
1526             if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) &&
1527                 (fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected)))
1528                 complete(&fib->event_wait);
1529         }
1530         kthread_stop(aac->thread);
1531         aac->thread = NULL;
1532     }
1533 
1534     aac_send_shutdown(aac);
1535 
1536     aac_adapter_disable_int(aac);
1537 
1538     if (aac_is_src(aac)) {
1539         if (aac->max_msix > 1) {
1540             for (i = 0; i < aac->max_msix; i++) {
1541                 free_irq(pci_irq_vector(aac->pdev, i),
1542                      &(aac->aac_msix[i]));
1543             }
1544         } else {
1545             free_irq(aac->pdev->irq,
1546                  &(aac->aac_msix[0]));
1547         }
1548     } else {
1549         free_irq(aac->pdev->irq, aac);
1550     }
1551     if (aac->msi)
1552         pci_disable_msi(aac->pdev);
1553     else if (aac->max_msix > 1)
1554         pci_disable_msix(aac->pdev);
1555 }
1556 static void aac_init_char(void)
1557 {
1558     aac_cfg_major = register_chrdev(0, "aac", &aac_cfg_fops);
1559     if (aac_cfg_major < 0) {
1560         pr_err("aacraid: unable to register \"aac\" device.\n");
1561     }
1562 }
1563 
1564 void aac_reinit_aif(struct aac_dev *aac, unsigned int index)
1565 {
1566     /*
1567      * Firmware may send a AIF messages very early and the Driver may have
1568      * ignored as it is not fully ready to process the messages. Send
1569      * AIF to firmware so that if there are any unprocessed events they
1570      * can be processed now.
1571      */
1572     if (aac_drivers[index].quirks & AAC_QUIRK_SRC)
1573         aac_intr_normal(aac, 0, 2, 0, NULL);
1574 
1575 }
1576 
1577 static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1578 {
1579     unsigned index = id->driver_data;
1580     struct Scsi_Host *shost;
1581     struct aac_dev *aac;
1582     struct list_head *insert = &aac_devices;
1583     int error;
1584     int unique_id = 0;
1585     u64 dmamask;
1586     int mask_bits = 0;
1587     extern int aac_sync_mode;
1588 
1589     /*
1590      * Only series 7 needs freset.
1591      */
1592     if (pdev->device == PMC_DEVICE_S7)
1593         pdev->needs_freset = 1;
1594 
1595     list_for_each_entry(aac, &aac_devices, entry) {
1596         if (aac->id > unique_id)
1597             break;
1598         insert = &aac->entry;
1599         unique_id++;
1600     }
1601 
1602     pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
1603                    PCIE_LINK_STATE_CLKPM);
1604 
1605     error = pci_enable_device(pdev);
1606     if (error)
1607         goto out;
1608 
1609     if (!(aac_drivers[index].quirks & AAC_QUIRK_SRC)) {
1610         error = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
1611         if (error) {
1612             dev_err(&pdev->dev, "PCI 32 BIT dma mask set failed");
1613             goto out_disable_pdev;
1614         }
1615     }
1616 
1617     /*
1618      * If the quirk31 bit is set, the adapter needs adapter
1619      * to driver communication memory to be allocated below 2gig
1620      */
1621     if (aac_drivers[index].quirks & AAC_QUIRK_31BIT) {
1622         dmamask = DMA_BIT_MASK(31);
1623         mask_bits = 31;
1624     } else {
1625         dmamask = DMA_BIT_MASK(32);
1626         mask_bits = 32;
1627     }
1628 
1629     error = dma_set_coherent_mask(&pdev->dev, dmamask);
1630     if (error) {
1631         dev_err(&pdev->dev, "PCI %d B consistent dma mask set failed\n"
1632                 , mask_bits);
1633         goto out_disable_pdev;
1634     }
1635 
1636     pci_set_master(pdev);
1637 
1638     shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
1639     if (!shost) {
1640         error = -ENOMEM;
1641         goto out_disable_pdev;
1642     }
1643 
1644     shost->irq = pdev->irq;
1645     shost->unique_id = unique_id;
1646     shost->max_cmd_len = 16;
1647 
1648     if (aac_cfg_major == AAC_CHARDEV_NEEDS_REINIT)
1649         aac_init_char();
1650 
1651     aac = (struct aac_dev *)shost->hostdata;
1652     aac->base_start = pci_resource_start(pdev, 0);
1653     aac->scsi_host_ptr = shost;
1654     aac->pdev = pdev;
1655     aac->name = aac_driver_template.name;
1656     aac->id = shost->unique_id;
1657     aac->cardtype = index;
1658     INIT_LIST_HEAD(&aac->entry);
1659 
1660     if (aac_reset_devices || reset_devices)
1661         aac->init_reset = true;
1662 
1663     aac->fibs = kcalloc(shost->can_queue + AAC_NUM_MGT_FIB,
1664                 sizeof(struct fib),
1665                 GFP_KERNEL);
1666     if (!aac->fibs) {
1667         error = -ENOMEM;
1668         goto out_free_host;
1669     }
1670 
1671     spin_lock_init(&aac->fib_lock);
1672 
1673     mutex_init(&aac->ioctl_mutex);
1674     mutex_init(&aac->scan_mutex);
1675 
1676     INIT_DELAYED_WORK(&aac->safw_rescan_work, aac_safw_rescan_worker);
1677     INIT_DELAYED_WORK(&aac->src_reinit_aif_worker,
1678                 aac_src_reinit_aif_worker);
1679     /*
1680      *  Map in the registers from the adapter.
1681      */
1682     aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
1683     if ((*aac_drivers[index].init)(aac)) {
1684         error = -ENODEV;
1685         goto out_unmap;
1686     }
1687 
1688     if (aac->sync_mode) {
1689         if (aac_sync_mode)
1690             printk(KERN_INFO "%s%d: Sync. mode enforced "
1691                 "by driver parameter. This will cause "
1692                 "a significant performance decrease!\n",
1693                 aac->name,
1694                 aac->id);
1695         else
1696             printk(KERN_INFO "%s%d: Async. mode not supported "
1697                 "by current driver, sync. mode enforced."
1698                 "\nPlease update driver to get full performance.\n",
1699                 aac->name,
1700                 aac->id);
1701     }
1702 
1703     /*
1704      *  Start any kernel threads needed
1705      */
1706     aac->thread = kthread_run(aac_command_thread, aac, AAC_DRIVERNAME);
1707     if (IS_ERR(aac->thread)) {
1708         printk(KERN_ERR "aacraid: Unable to create command thread.\n");
1709         error = PTR_ERR(aac->thread);
1710         aac->thread = NULL;
1711         goto out_deinit;
1712     }
1713 
1714     aac->maximum_num_channels = aac_drivers[index].channels;
1715     error = aac_get_adapter_info(aac);
1716     if (error < 0)
1717         goto out_deinit;
1718 
1719     /*
1720      * Lets override negotiations and drop the maximum SG limit to 34
1721      */
1722     if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) &&
1723             (shost->sg_tablesize > 34)) {
1724         shost->sg_tablesize = 34;
1725         shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1726     }
1727 
1728     if ((aac_drivers[index].quirks & AAC_QUIRK_17SG) &&
1729             (shost->sg_tablesize > 17)) {
1730         shost->sg_tablesize = 17;
1731         shost->max_sectors = (shost->sg_tablesize * 8) + 112;
1732     }
1733 
1734     if (aac->adapter_info.options & AAC_OPT_NEW_COMM)
1735         shost->max_segment_size = shost->max_sectors << 9;
1736     else
1737         shost->max_segment_size = 65536;
1738 
1739     /*
1740      * Firmware printf works only with older firmware.
1741      */
1742     if (aac_drivers[index].quirks & AAC_QUIRK_34SG)
1743         aac->printf_enabled = 1;
1744     else
1745         aac->printf_enabled = 0;
1746 
1747     /*
1748      * max channel will be the physical channels plus 1 virtual channel
1749      * all containers are on the virtual channel 0 (CONTAINER_CHANNEL)
1750      * physical channels are address by their actual physical number+1
1751      */
1752     if (aac->nondasd_support || expose_physicals || aac->jbod)
1753         shost->max_channel = aac->maximum_num_channels;
1754     else
1755         shost->max_channel = 0;
1756 
1757     aac_get_config_status(aac, 0);
1758     aac_get_containers(aac);
1759     list_add(&aac->entry, insert);
1760 
1761     shost->max_id = aac->maximum_num_containers;
1762     if (shost->max_id < aac->maximum_num_physicals)
1763         shost->max_id = aac->maximum_num_physicals;
1764     if (shost->max_id < MAXIMUM_NUM_CONTAINERS)
1765         shost->max_id = MAXIMUM_NUM_CONTAINERS;
1766     else
1767         shost->this_id = shost->max_id;
1768 
1769     if (!aac->sa_firmware && aac_drivers[index].quirks & AAC_QUIRK_SRC)
1770         aac_intr_normal(aac, 0, 2, 0, NULL);
1771 
1772     /*
1773      * dmb - we may need to move the setting of these parms somewhere else once
1774      * we get a fib that can report the actual numbers
1775      */
1776     shost->max_lun = AAC_MAX_LUN;
1777 
1778     pci_set_drvdata(pdev, shost);
1779 
1780     error = scsi_add_host(shost, &pdev->dev);
1781     if (error)
1782         goto out_deinit;
1783 
1784     aac_scan_host(aac);
1785 
1786     pci_enable_pcie_error_reporting(pdev);
1787     pci_save_state(pdev);
1788 
1789     return 0;
1790 
1791  out_deinit:
1792     __aac_shutdown(aac);
1793  out_unmap:
1794     aac_fib_map_free(aac);
1795     if (aac->comm_addr)
1796         dma_free_coherent(&aac->pdev->dev, aac->comm_size,
1797                   aac->comm_addr, aac->comm_phys);
1798     kfree(aac->queues);
1799     aac_adapter_ioremap(aac, 0);
1800     kfree(aac->fibs);
1801     kfree(aac->fsa_dev);
1802  out_free_host:
1803     scsi_host_put(shost);
1804  out_disable_pdev:
1805     pci_disable_device(pdev);
1806  out:
1807     return error;
1808 }
1809 
1810 static void aac_release_resources(struct aac_dev *aac)
1811 {
1812     aac_adapter_disable_int(aac);
1813     aac_free_irq(aac);
1814 }
1815 
1816 static int aac_acquire_resources(struct aac_dev *dev)
1817 {
1818     unsigned long status;
1819     /*
1820      *  First clear out all interrupts.  Then enable the one's that we
1821      *  can handle.
1822      */
1823     while (!((status = src_readl(dev, MUnit.OMR)) & KERNEL_UP_AND_RUNNING)
1824         || status == 0xffffffff)
1825             msleep(20);
1826 
1827     aac_adapter_disable_int(dev);
1828     aac_adapter_enable_int(dev);
1829 
1830 
1831     if (aac_is_src(dev))
1832         aac_define_int_mode(dev);
1833 
1834     if (dev->msi_enabled)
1835         aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
1836 
1837     if (aac_acquire_irq(dev))
1838         goto error_iounmap;
1839 
1840     aac_adapter_enable_int(dev);
1841 
1842     /*max msix may change  after EEH
1843      * Re-assign vectors to fibs
1844      */
1845     aac_fib_vector_assign(dev);
1846 
1847     if (!dev->sync_mode) {
1848         /* After EEH recovery or suspend resume, max_msix count
1849          * may change, therefore updating in init as well.
1850          */
1851         dev->init->r7.no_of_msix_vectors = cpu_to_le32(dev->max_msix);
1852         aac_adapter_start(dev);
1853     }
1854     return 0;
1855 
1856 error_iounmap:
1857     return -1;
1858 
1859 }
1860 
1861 static int __maybe_unused aac_suspend(struct device *dev)
1862 {
1863     struct Scsi_Host *shost = dev_get_drvdata(dev);
1864     struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1865 
1866     scsi_host_block(shost);
1867     aac_cancel_rescan_worker(aac);
1868     aac_send_shutdown(aac);
1869 
1870     aac_release_resources(aac);
1871 
1872     return 0;
1873 }
1874 
1875 static int __maybe_unused aac_resume(struct device *dev)
1876 {
1877     struct Scsi_Host *shost = dev_get_drvdata(dev);
1878     struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1879 
1880     if (aac_acquire_resources(aac))
1881         goto fail_device;
1882     /*
1883     * reset this flag to unblock ioctl() as it was set at
1884     * aac_send_shutdown() to block ioctls from upperlayer
1885     */
1886     aac->adapter_shutdown = 0;
1887     scsi_host_unblock(shost, SDEV_RUNNING);
1888 
1889     return 0;
1890 
1891 fail_device:
1892     printk(KERN_INFO "%s%d: resume failed.\n", aac->name, aac->id);
1893     scsi_host_put(shost);
1894     return -ENODEV;
1895 }
1896 
1897 static void aac_shutdown(struct pci_dev *dev)
1898 {
1899     struct Scsi_Host *shost = pci_get_drvdata(dev);
1900 
1901     scsi_host_block(shost);
1902     __aac_shutdown((struct aac_dev *)shost->hostdata);
1903 }
1904 
1905 static void aac_remove_one(struct pci_dev *pdev)
1906 {
1907     struct Scsi_Host *shost = pci_get_drvdata(pdev);
1908     struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
1909 
1910     aac_cancel_rescan_worker(aac);
1911     scsi_remove_host(shost);
1912 
1913     __aac_shutdown(aac);
1914     aac_fib_map_free(aac);
1915     dma_free_coherent(&aac->pdev->dev, aac->comm_size, aac->comm_addr,
1916               aac->comm_phys);
1917     kfree(aac->queues);
1918 
1919     aac_adapter_ioremap(aac, 0);
1920 
1921     kfree(aac->fibs);
1922     kfree(aac->fsa_dev);
1923 
1924     list_del(&aac->entry);
1925     scsi_host_put(shost);
1926     pci_disable_device(pdev);
1927     if (list_empty(&aac_devices)) {
1928         unregister_chrdev(aac_cfg_major, "aac");
1929         aac_cfg_major = AAC_CHARDEV_NEEDS_REINIT;
1930     }
1931 }
1932 
1933 static pci_ers_result_t aac_pci_error_detected(struct pci_dev *pdev,
1934                     pci_channel_state_t error)
1935 {
1936     struct Scsi_Host *shost = pci_get_drvdata(pdev);
1937     struct aac_dev *aac = shost_priv(shost);
1938 
1939     dev_err(&pdev->dev, "aacraid: PCI error detected %x\n", error);
1940 
1941     switch (error) {
1942     case pci_channel_io_normal:
1943         return PCI_ERS_RESULT_CAN_RECOVER;
1944     case pci_channel_io_frozen:
1945         aac->handle_pci_error = 1;
1946 
1947         scsi_host_block(shost);
1948         aac_cancel_rescan_worker(aac);
1949         scsi_host_complete_all_commands(shost, DID_NO_CONNECT);
1950         aac_release_resources(aac);
1951 
1952         pci_disable_pcie_error_reporting(pdev);
1953         aac_adapter_ioremap(aac, 0);
1954 
1955         return PCI_ERS_RESULT_NEED_RESET;
1956     case pci_channel_io_perm_failure:
1957         aac->handle_pci_error = 1;
1958 
1959         scsi_host_complete_all_commands(shost, DID_NO_CONNECT);
1960         return PCI_ERS_RESULT_DISCONNECT;
1961     }
1962 
1963     return PCI_ERS_RESULT_NEED_RESET;
1964 }
1965 
1966 static pci_ers_result_t aac_pci_mmio_enabled(struct pci_dev *pdev)
1967 {
1968     dev_err(&pdev->dev, "aacraid: PCI error - mmio enabled\n");
1969     return PCI_ERS_RESULT_NEED_RESET;
1970 }
1971 
1972 static pci_ers_result_t aac_pci_slot_reset(struct pci_dev *pdev)
1973 {
1974     dev_err(&pdev->dev, "aacraid: PCI error - slot reset\n");
1975     pci_restore_state(pdev);
1976     if (pci_enable_device(pdev)) {
1977         dev_warn(&pdev->dev,
1978             "aacraid: failed to enable slave\n");
1979         goto fail_device;
1980     }
1981 
1982     pci_set_master(pdev);
1983 
1984     if (pci_enable_device_mem(pdev)) {
1985         dev_err(&pdev->dev, "pci_enable_device_mem failed\n");
1986         goto fail_device;
1987     }
1988 
1989     return PCI_ERS_RESULT_RECOVERED;
1990 
1991 fail_device:
1992     dev_err(&pdev->dev, "aacraid: PCI error - slot reset failed\n");
1993     return PCI_ERS_RESULT_DISCONNECT;
1994 }
1995 
1996 
1997 static void aac_pci_resume(struct pci_dev *pdev)
1998 {
1999     struct Scsi_Host *shost = pci_get_drvdata(pdev);
2000     struct aac_dev *aac = (struct aac_dev *)shost_priv(shost);
2001 
2002     if (aac_adapter_ioremap(aac, aac->base_size)) {
2003 
2004         dev_err(&pdev->dev, "aacraid: ioremap failed\n");
2005         /* remap failed, go back ... */
2006         aac->comm_interface = AAC_COMM_PRODUCER;
2007         if (aac_adapter_ioremap(aac, AAC_MIN_FOOTPRINT_SIZE)) {
2008             dev_warn(&pdev->dev,
2009                 "aacraid: unable to map adapter.\n");
2010 
2011             return;
2012         }
2013     }
2014 
2015     msleep(10000);
2016 
2017     aac_acquire_resources(aac);
2018 
2019     /*
2020      * reset this flag to unblock ioctl() as it was set
2021      * at aac_send_shutdown() to block ioctls from upperlayer
2022      */
2023     aac->adapter_shutdown = 0;
2024     aac->handle_pci_error = 0;
2025 
2026     scsi_host_unblock(shost, SDEV_RUNNING);
2027     aac_scan_host(aac);
2028     pci_save_state(pdev);
2029 
2030     dev_err(&pdev->dev, "aacraid: PCI error - resume\n");
2031 }
2032 
2033 static struct pci_error_handlers aac_pci_err_handler = {
2034     .error_detected     = aac_pci_error_detected,
2035     .mmio_enabled       = aac_pci_mmio_enabled,
2036     .slot_reset     = aac_pci_slot_reset,
2037     .resume         = aac_pci_resume,
2038 };
2039 
2040 static SIMPLE_DEV_PM_OPS(aac_pm_ops, aac_suspend, aac_resume);
2041 
2042 static struct pci_driver aac_pci_driver = {
2043     .name       = AAC_DRIVERNAME,
2044     .id_table   = aac_pci_tbl,
2045     .probe      = aac_probe_one,
2046     .remove     = aac_remove_one,
2047     .driver.pm      = &aac_pm_ops,
2048     .shutdown   = aac_shutdown,
2049     .err_handler    = &aac_pci_err_handler,
2050 };
2051 
2052 static int __init aac_init(void)
2053 {
2054     int error;
2055 
2056     printk(KERN_INFO "Adaptec %s driver %s\n",
2057       AAC_DRIVERNAME, aac_driver_version);
2058 
2059     error = pci_register_driver(&aac_pci_driver);
2060     if (error < 0)
2061         return error;
2062 
2063     aac_init_char();
2064 
2065 
2066     return 0;
2067 }
2068 
2069 static void __exit aac_exit(void)
2070 {
2071     if (aac_cfg_major > -1)
2072         unregister_chrdev(aac_cfg_major, "aac");
2073     pci_unregister_driver(&aac_pci_driver);
2074 }
2075 
2076 module_init(aac_init);
2077 module_exit(aac_exit);
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