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