drivers/scsi/mpt2sas/mpt2sas_ctl.h

   1 /*
   2  * Management Module Support for MPT (Message Passing Technology) based
   3  * controllers
   4  *
   5  * This code is based on drivers/scsi/mpt2sas/mpt2_ctl.h
   6  * Copyright (C) 2007-2009  LSI Corporation
   7  *  (mailto:DL-MPTFusionLinux@lsi.com)
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation; either version 2
  12  * of the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * NO WARRANTY
  20  * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  21  * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  22  * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  23  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  24  * solely responsible for determining the appropriateness of using and
  25  * distributing the Program and assumes all risks associated with its
  26  * exercise of rights under this Agreement, including but not limited to
  27  * the risks and costs of program errors, damage to or loss of data,
  28  * programs or equipment, and unavailability or interruption of operations.
  29
  30  * DISCLAIMER OF LIABILITY
  31  * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  32  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  33  * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  34  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  35  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  36  * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  37  * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  38
  39  * You should have received a copy of the GNU General Public License
  40  * along with this program; if not, write to the Free Software
  41  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  42  * USA.
  43  */
  44
  45 #ifndef MPT2SAS_CTL_H_INCLUDED
  46 #define MPT2SAS_CTL_H_INCLUDED
  47
  48 #ifdef __KERNEL__
  49 #include <linux/miscdevice.h>
  50 #endif
  51
  52 #define MPT2SAS_DEV_NAME        "mpt2ctl"
  53 #define MPT2_MAGIC_NUMBER       'L'
  54 #define MPT2_IOCTL_DEFAULT_TIMEOUT (10) /* in seconds */
  55
  56 /**
  57  * IOCTL opcodes
  58  */
  59 #define MPT2IOCINFO     _IOWR(MPT2_MAGIC_NUMBER, 17, \
  60     struct mpt2_ioctl_iocinfo)
  61 #define MPT2COMMAND     _IOWR(MPT2_MAGIC_NUMBER, 20, \
  62     struct mpt2_ioctl_command)
  63 #ifdef CONFIG_COMPAT
  64 #define MPT2COMMAND32   _IOWR(MPT2_MAGIC_NUMBER, 20, \
  65     struct mpt2_ioctl_command32)
  66 #endif
  67 #define MPT2EVENTQUERY  _IOWR(MPT2_MAGIC_NUMBER, 21, \
  68     struct mpt2_ioctl_eventquery)
  69 #define MPT2EVENTENABLE _IOWR(MPT2_MAGIC_NUMBER, 22, \
  70     struct mpt2_ioctl_eventenable)
  71 #define MPT2EVENTREPORT _IOWR(MPT2_MAGIC_NUMBER, 23, \
  72     struct mpt2_ioctl_eventreport)
  73 #define MPT2HARDRESET   _IOWR(MPT2_MAGIC_NUMBER, 24, \
  74     struct mpt2_ioctl_diag_reset)
  75 #define MPT2BTDHMAPPING _IOWR(MPT2_MAGIC_NUMBER, 31, \
  76     struct mpt2_ioctl_btdh_mapping)
  77
  78 /* diag buffer support */
  79 #define MPT2DIAGREGISTER _IOWR(MPT2_MAGIC_NUMBER, 26, \
  80     struct mpt2_diag_register)
  81 #define MPT2DIAGRELEASE _IOWR(MPT2_MAGIC_NUMBER, 27, \
  82     struct mpt2_diag_release)
  83 #define MPT2DIAGUNREGISTER _IOWR(MPT2_MAGIC_NUMBER, 28, \
  84     struct mpt2_diag_unregister)
  85 #define MPT2DIAGQUERY   _IOWR(MPT2_MAGIC_NUMBER, 29, \
  86     struct mpt2_diag_query)
  87 #define MPT2DIAGREADBUFFER _IOWR(MPT2_MAGIC_NUMBER, 30, \
  88     struct mpt2_diag_read_buffer)
  89
  90 /**
  91  * struct mpt2_ioctl_header - main header structure
  92  * @ioc_number -  IOC unit number
  93  * @port_number - IOC port number
  94  * @max_data_size - maximum number bytes to transfer on read
  95  */
  96 struct mpt2_ioctl_header {
  97         uint32_t ioc_number;
  98         uint32_t port_number;
  99         uint32_t max_data_size;
 100 };
 101
 102 /**
 103  * struct mpt2_ioctl_diag_reset - diagnostic reset
 104  * @hdr - generic header
 105  */
 106 struct mpt2_ioctl_diag_reset {
 107         struct mpt2_ioctl_header hdr;
 108 };
 109
 110
 111 /**
 112  * struct mpt2_ioctl_pci_info - pci device info
 113  * @device - pci device id
 114  * @function - pci function id
 115  * @bus - pci bus id
 116  * @segment_id - pci segment id
 117  */
 118 struct mpt2_ioctl_pci_info {
 119         union {
 120                 struct {
 121                         uint32_t device:5;
 122                         uint32_t function:3;
 123                         uint32_t bus:24;
 124                 } bits;
 125                 uint32_t  word;
 126         } u;
 127         uint32_t segment_id;
 128 };
 129
 130
 131 #define MPT2_IOCTL_INTERFACE_SCSI       (0x00)
 132 #define MPT2_IOCTL_INTERFACE_FC         (0x01)
 133 #define MPT2_IOCTL_INTERFACE_FC_IP      (0x02)
 134 #define MPT2_IOCTL_INTERFACE_SAS        (0x03)
 135 #define MPT2_IOCTL_INTERFACE_SAS2       (0x04)
 136 #define MPT2_IOCTL_VERSION_LENGTH       (32)
 137
 138 /**
 139  * struct mpt2_ioctl_iocinfo - generic controller info
 140  * @hdr - generic header
 141  * @adapter_type - type of adapter (spi, fc, sas)
 142  * @port_number - port number
 143  * @pci_id - PCI Id
 144  * @hw_rev - hardware revision
 145  * @sub_system_device - PCI subsystem Device ID
 146  * @sub_system_vendor - PCI subsystem Vendor ID
 147  * @rsvd0 - reserved
 148  * @firmware_version - firmware version
 149  * @bios_version - BIOS version
 150  * @driver_version - driver version - 32 ASCII characters
 151  * @rsvd1 - reserved
 152  * @scsi_id - scsi id of adapter 0
 153  * @rsvd2 - reserved
 154  * @pci_information - pci info (2nd revision)
 155  */
 156 struct mpt2_ioctl_iocinfo {
 157         struct mpt2_ioctl_header hdr;
 158         uint32_t adapter_type;
 159         uint32_t port_number;
 160         uint32_t pci_id;
 161         uint32_t hw_rev;
 162         uint32_t subsystem_device;
 163         uint32_t subsystem_vendor;
 164         uint32_t rsvd0;
 165         uint32_t firmware_version;
 166         uint32_t bios_version;
 167         uint8_t driver_version[MPT2_IOCTL_VERSION_LENGTH];
 168         uint8_t rsvd1;
 169         uint8_t scsi_id;
 170         uint16_t rsvd2;
 171         struct mpt2_ioctl_pci_info pci_information;
 172 };
 173
 174
 175 /* number of event log entries */
 176 #define MPT2SAS_CTL_EVENT_LOG_SIZE (50)
 177
 178 /**
 179  * struct mpt2_ioctl_eventquery - query event count and type
 180  * @hdr - generic header
 181  * @event_entries - number of events returned by get_event_report
 182  * @rsvd - reserved
 183  * @event_types - type of events currently being captured
 184  */
 185 struct mpt2_ioctl_eventquery {
 186         struct mpt2_ioctl_header hdr;
 187         uint16_t event_entries;
 188         uint16_t rsvd;
 189         uint32_t event_types[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
 190 };
 191
 192 /**
 193  * struct mpt2_ioctl_eventenable - enable/disable event capturing
 194  * @hdr - generic header
 195  * @event_types - toggle off/on type of events to be captured
 196  */
 197 struct mpt2_ioctl_eventenable {
 198         struct mpt2_ioctl_header hdr;
 199         uint32_t event_types[4];
 200 };
 201
 202 #define MPT2_EVENT_DATA_SIZE (192)
 203 /**
 204  * struct MPT2_IOCTL_EVENTS -
 205  * @event - the event that was reported
 206  * @context - unique value for each event assigned by driver
 207  * @data - event data returned in fw reply message
 208  */
 209 struct MPT2_IOCTL_EVENTS {
 210         uint32_t event;
 211         uint32_t context;
 212         uint8_t data[MPT2_EVENT_DATA_SIZE];
 213 };
 214
 215 /**
 216  * struct mpt2_ioctl_eventreport - returing event log
 217  * @hdr - generic header
 218  * @event_data - (see struct MPT2_IOCTL_EVENTS)
 219  */
 220 struct mpt2_ioctl_eventreport {
 221         struct mpt2_ioctl_header hdr;
 222         struct MPT2_IOCTL_EVENTS event_data[1];
 223 };
 224
 225 /**
 226  * struct mpt2_ioctl_command - generic mpt firmware passthru ioclt
 227  * @hdr - generic header
 228  * @timeout - command timeout in seconds. (if zero then use driver default
 229  *  value).
 230  * @reply_frame_buf_ptr - reply location
 231  * @data_in_buf_ptr - destination for read
 232  * @data_out_buf_ptr - data source for write
 233  * @sense_data_ptr - sense data location
 234  * @max_reply_bytes - maximum number of reply bytes to be sent to app.
 235  * @data_in_size - number bytes for data transfer in (read)
 236  * @data_out_size - number bytes for data transfer out (write)
 237  * @max_sense_bytes - maximum number of bytes for auto sense buffers
 238  * @data_sge_offset - offset in words from the start of the request message to
 239  * the first SGL
 240  * @mf[1];
 241  */
 242 struct mpt2_ioctl_command {
 243         struct mpt2_ioctl_header hdr;
 244         uint32_t timeout;
 245         void __user *reply_frame_buf_ptr;
 246         void __user *data_in_buf_ptr;
 247         void __user *data_out_buf_ptr;
 248         void __user *sense_data_ptr;
 249         uint32_t max_reply_bytes;
 250         uint32_t data_in_size;
 251         uint32_t data_out_size;
 252         uint32_t max_sense_bytes;
 253         uint32_t data_sge_offset;
 254         uint8_t mf[1];
 255 };
 256
 257 #ifdef CONFIG_COMPAT
 258 struct mpt2_ioctl_command32 {
 259         struct mpt2_ioctl_header hdr;
 260         uint32_t timeout;
 261         uint32_t reply_frame_buf_ptr;
 262         uint32_t data_in_buf_ptr;
 263         uint32_t data_out_buf_ptr;
 264         uint32_t sense_data_ptr;
 265         uint32_t max_reply_bytes;
 266         uint32_t data_in_size;
 267         uint32_t data_out_size;
 268         uint32_t max_sense_bytes;
 269         uint32_t data_sge_offset;
 270         uint8_t mf[1];
 271 };
 272 #endif
 273
 274 /**
 275  * struct mpt2_ioctl_btdh_mapping - mapping info
 276  * @hdr - generic header
 277  * @id - target device identification number
 278  * @bus - SCSI bus number that the target device exists on
 279  * @handle - device handle for the target device
 280  * @rsvd - reserved
 281  *
 282  * To obtain a bus/id the application sets
 283  * handle to valid handle, and bus/id to 0xFFFF.
 284  *
 285  * To obtain the device handle the application sets
 286  * bus/id valid value, and the handle to 0xFFFF.
 287  */
 288 struct mpt2_ioctl_btdh_mapping {
 289         struct mpt2_ioctl_header hdr;
 290         uint32_t id;
 291         uint32_t bus;
 292         uint16_t handle;
 293         uint16_t rsvd;
 294 };
 295
 296
 297 /* status bits for ioc->diag_buffer_status */
 298 #define MPT2_DIAG_BUFFER_IS_REGISTERED  (0x01)
 299 #define MPT2_DIAG_BUFFER_IS_RELEASED    (0x02)
 300 #define MPT2_DIAG_BUFFER_IS_DIAG_RESET  (0x04)
 301
 302 /* application flags for mpt2_diag_register, mpt2_diag_query */
 303 #define MPT2_APP_FLAGS_APP_OWNED        (0x0001)
 304 #define MPT2_APP_FLAGS_BUFFER_VALID     (0x0002)
 305 #define MPT2_APP_FLAGS_FW_BUFFER_ACCESS (0x0004)
 306
 307 /* flags for mpt2_diag_read_buffer */
 308 #define MPT2_FLAGS_REREGISTER           (0x0001)
 309
 310 #define MPT2_PRODUCT_SPECIFIC_DWORDS            23
 311
 312 /**
 313  * struct mpt2_diag_register - application register with driver
 314  * @hdr - generic header
 315  * @reserved -
 316  * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
 317  * @application_flags - misc flags
 318  * @diagnostic_flags - specifies flags affecting command processing
 319  * @product_specific - product specific information
 320  * @requested_buffer_size - buffers size in bytes
 321  * @unique_id - tag specified by application that is used to signal ownership
 322  *  of the buffer.
 323  *
 324  * This will allow the driver to setup any required buffers that will be
 325  * needed by firmware to communicate with the driver.
 326  */
 327 struct mpt2_diag_register {
 328         struct mpt2_ioctl_header hdr;
 329         uint8_t reserved;
 330         uint8_t buffer_type;
 331         uint16_t application_flags;
 332         uint32_t diagnostic_flags;
 333         uint32_t product_specific[MPT2_PRODUCT_SPECIFIC_DWORDS];
 334         uint32_t requested_buffer_size;
 335         uint32_t unique_id;
 336 };
 337
 338 /**
 339  * struct mpt2_diag_unregister - application unregister with driver
 340  * @hdr - generic header
 341  * @unique_id - tag uniquely identifies the buffer to be unregistered
 342  *
 343  * This will allow the driver to cleanup any memory allocated for diag
 344  * messages and to free up any resources.
 345  */
 346 struct mpt2_diag_unregister {
 347         struct mpt2_ioctl_header hdr;
 348         uint32_t unique_id;
 349 };
 350
 351 /**
 352  * struct mpt2_diag_query - query relevant info associated with diag buffers
 353  * @hdr - generic header
 354  * @reserved -
 355  * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
 356  * @application_flags - misc flags
 357  * @diagnostic_flags - specifies flags affecting command processing
 358  * @product_specific - product specific information
 359  * @total_buffer_size - diag buffer size in bytes
 360  * @driver_added_buffer_size - size of extra space appended to end of buffer
 361  * @unique_id - unique id associated with this buffer.
 362  *
 363  * The application will send only buffer_type and unique_id.  Driver will
 364  * inspect unique_id first, if valid, fill in all the info.  If unique_id is
 365  * 0x00, the driver will return info specified by Buffer Type.
 366  */
 367 struct mpt2_diag_query {
 368         struct mpt2_ioctl_header hdr;
 369         uint8_t reserved;
 370         uint8_t buffer_type;
 371         uint16_t application_flags;
 372         uint32_t diagnostic_flags;
 373         uint32_t product_specific[MPT2_PRODUCT_SPECIFIC_DWORDS];
 374         uint32_t total_buffer_size;
 375         uint32_t driver_added_buffer_size;
 376         uint32_t unique_id;
 377 };
 378
 379 /**
 380  * struct mpt2_diag_release -  request to send Diag Release Message to firmware
 381  * @hdr - generic header
 382  * @unique_id - tag uniquely identifies the buffer to be released
 383  *
 384  * This allows ownership of the specified buffer to returned to the driver,
 385  * allowing an application to read the buffer without fear that firmware is
 386  * overwritting information in the buffer.
 387  */
 388 struct mpt2_diag_release {
 389         struct mpt2_ioctl_header hdr;
 390         uint32_t unique_id;
 391 };
 392
 393 /**
 394  * struct mpt2_diag_read_buffer - request for copy of the diag buffer
 395  * @hdr - generic header
 396  * @status -
 397  * @reserved -
 398  * @flags - misc flags
 399  * @starting_offset - starting offset within drivers buffer where to start
 400  *  reading data at into the specified application buffer
 401  * @bytes_to_read - number of bytes to copy from the drivers buffer into the
 402  *  application buffer starting at starting_offset.
 403  * @unique_id - unique id associated with this buffer.
 404  * @diagnostic_data - data payload
 405  */
 406 struct mpt2_diag_read_buffer {
 407         struct mpt2_ioctl_header hdr;
 408         uint8_t status;
 409         uint8_t reserved;
 410         uint16_t flags;
 411         uint32_t starting_offset;
 412         uint32_t bytes_to_read;
 413         uint32_t unique_id;
 414         uint32_t diagnostic_data[1];
 415 };
 416
 417 #endif /* MPT2SAS_CTL_H_INCLUDED */