linux/drivers/message/fusion/mptsas.h
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   1/*
   2 *  linux/drivers/message/fusion/mptsas.h
   3 *      High performance SCSI + LAN / Fibre Channel device drivers.
   4 *      For use with PCI chip/adapter(s):
   5 *          LSIFC9xx/LSI409xx Fibre Channel
   6 *      running LSI MPT (Message Passing Technology) firmware.
   7 *
   8 *  Copyright (c) 1999-2008 LSI Corporation
   9 *  (mailto:DL-MPTFusionLinux@lsi.com)
  10 *
  11 */
  12/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  13/*
  14    This program is free software; you can redistribute it and/or modify
  15    it under the terms of the GNU General Public License as published by
  16    the Free Software Foundation; version 2 of the License.
  17
  18    This program is distributed in the hope that it will be useful,
  19    but WITHOUT ANY WARRANTY; without even the implied warranty of
  20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21    GNU General Public License for more details.
  22
  23    NO WARRANTY
  24    THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  25    CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  26    LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  27    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  28    solely responsible for determining the appropriateness of using and
  29    distributing the Program and assumes all risks associated with its
  30    exercise of rights under this Agreement, including but not limited to
  31    the risks and costs of program errors, damage to or loss of data,
  32    programs or equipment, and unavailability or interruption of operations.
  33
  34    DISCLAIMER OF LIABILITY
  35    NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  36    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  37    DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  38    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  39    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  40    USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  41    HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  42
  43    You should have received a copy of the GNU General Public License
  44    along with this program; if not, write to the Free Software
  45    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  46*/
  47
  48#ifndef MPTSAS_H_INCLUDED
  49#define MPTSAS_H_INCLUDED
  50/*{-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  51
  52struct mptsas_target_reset_event {
  53        struct list_head        list;
  54        EVENT_DATA_SAS_DEVICE_STATUS_CHANGE sas_event_data;
  55        u8      target_reset_issued;
  56        unsigned long    time_count;
  57};
  58
  59enum mptsas_hotplug_action {
  60        MPTSAS_ADD_DEVICE,
  61        MPTSAS_DEL_DEVICE,
  62        MPTSAS_ADD_RAID,
  63        MPTSAS_DEL_RAID,
  64        MPTSAS_ADD_PHYSDISK,
  65        MPTSAS_ADD_PHYSDISK_REPROBE,
  66        MPTSAS_DEL_PHYSDISK,
  67        MPTSAS_DEL_PHYSDISK_REPROBE,
  68        MPTSAS_ADD_INACTIVE_VOLUME,
  69        MPTSAS_IGNORE_EVENT,
  70};
  71
  72struct mptsas_mapping{
  73        u8                      id;
  74        u8                      channel;
  75};
  76
  77struct mptsas_device_info {
  78        struct list_head        list;
  79        struct mptsas_mapping   os;     /* operating system mapping*/
  80        struct mptsas_mapping   fw;     /* firmware mapping */
  81        u64                     sas_address;
  82        u32                     device_info; /* specific bits for devices */
  83        u16                     slot;           /* enclosure slot id */
  84        u64                     enclosure_logical_id; /*enclosure address */
  85        u8                      is_logical_volume; /* is this logical volume */
  86        /* this belongs to volume */
  87        u8                      is_hidden_raid_component;
  88        /* this valid when is_hidden_raid_component set */
  89        u8                      volume_id;
  90        /* cached data for a removed device */
  91        u8                      is_cached;
  92};
  93
  94struct mptsas_hotplug_event {
  95        MPT_ADAPTER             *ioc;
  96        enum mptsas_hotplug_action event_type;
  97        u64                     sas_address;
  98        u8                      channel;
  99        u8                      id;
 100        u32                     device_info;
 101        u16                     handle;
 102        u8                      phy_id;
 103        u8                      phys_disk_num;          /* hrc - unique index*/
 104        struct scsi_device      *sdev;
 105};
 106
 107struct fw_event_work {
 108        struct list_head        list;
 109        struct delayed_work      work;
 110        int                     users;
 111        MPT_ADAPTER     *ioc;
 112        u32                     event;
 113        u8                      retries;
 114        char                    event_data[] __aligned(4);
 115};
 116
 117struct mptsas_discovery_event {
 118        struct work_struct      work;
 119        MPT_ADAPTER             *ioc;
 120};
 121
 122/*
 123 * SAS topology structures
 124 *
 125 * The MPT Fusion firmware interface spreads information about the
 126 * SAS topology over many manufacture pages, thus we need some data
 127 * structure to collect it and process it for the SAS transport class.
 128 */
 129
 130struct mptsas_devinfo {
 131        u16     handle;         /* unique id to address this device */
 132        u16     handle_parent;  /* unique id to address parent device */
 133        u16     handle_enclosure; /* enclosure identifier of the enclosure */
 134        u16     slot;           /* physical slot in enclosure */
 135        u8      phy_id;         /* phy number of parent device */
 136        u8      port_id;        /* sas physical port this device
 137                                   is assoc'd with */
 138        u8      id;             /* logical target id of this device */
 139        u32     phys_disk_num;  /* phys disk id, for csmi-ioctls */
 140        u8      channel;        /* logical bus number of this device */
 141        u64     sas_address;    /* WWN of this device,
 142                                   SATA is assigned by HBA,expander */
 143        u32     device_info;    /* bitfield detailed info about this device */
 144        u16     flags;          /* sas device pg0 flags */
 145};
 146
 147/*
 148 * Specific details on ports, wide/narrow
 149 */
 150struct mptsas_portinfo_details{
 151        u16     num_phys;       /* number of phys belong to this port */
 152        u64     phy_bitmask;    /* TODO, extend support for 255 phys */
 153        struct sas_rphy *rphy;  /* transport layer rphy object */
 154        struct sas_port *port;  /* transport layer port object */
 155        struct scsi_target *starget;
 156        struct mptsas_portinfo *port_info;
 157};
 158
 159struct mptsas_phyinfo {
 160        u16     handle;                 /* unique id to address this */
 161        u8      phy_id;                 /* phy index */
 162        u8      port_id;                /* firmware port identifier */
 163        u8      negotiated_link_rate;   /* nego'd link rate for this phy */
 164        u8      hw_link_rate;           /* hardware max/min phys link rate */
 165        u8      programmed_link_rate;   /* programmed max/min phy link rate */
 166        u8      sas_port_add_phy;       /* flag to request sas_port_add_phy*/
 167        struct mptsas_devinfo identify; /* point to phy device info */
 168        struct mptsas_devinfo attached; /* point to attached device info */
 169        struct sas_phy *phy;            /* transport layer phy object */
 170        struct mptsas_portinfo *portinfo;
 171        struct mptsas_portinfo_details * port_details;
 172};
 173
 174struct mptsas_portinfo {
 175        struct list_head list;
 176        u16             num_phys;       /* number of phys */
 177        struct mptsas_phyinfo *phy_info;
 178};
 179
 180struct mptsas_enclosure {
 181        u64     enclosure_logical_id;   /* The WWN for the enclosure */
 182        u16     enclosure_handle;       /* unique id to address this */
 183        u16     flags;                  /* details enclosure management */
 184        u16     num_slot;               /* num slots */
 185        u16     start_slot;             /* first slot */
 186        u8      start_id;               /* starting logical target id */
 187        u8      start_channel;          /* starting logical channel id */
 188        u8      sep_id;                 /* SEP device logical target id */
 189        u8      sep_channel;            /* SEP channel logical channel id */
 190};
 191
 192/*}-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 193#endif
 194