drivers/scsi/mpt3sas/mpt3sas_ctl.h

   1 /*
   2  * Management Module Support for MPT (Message Passing Technology) based
   3  * controllers
   4  *
   5  * This code is based on drivers/scsi/mpt3sas/mpt3sas_ctl.h
   6  * Copyright (C) 2012-2014  LSI Corporation
   7  * Copyright (C) 2013-2014 Avago Technologies
   8  *  (mailto: MPT-FusionLinux.pdl@avagotech.com)
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * NO WARRANTY
  21  * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  22  * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  23  * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  24  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  25  * solely responsible for determining the appropriateness of using and
  26  * distributing the Program and assumes all risks associated with its
  27  * exercise of rights under this Agreement, including but not limited to
  28  * the risks and costs of program errors, damage to or loss of data,
  29  * programs or equipment, and unavailability or interruption of operations.
  30
  31  * DISCLAIMER OF LIABILITY
  32  * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  33  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  34  * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  35  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  36  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  37  * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  38  * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  39
  40  * You should have received a copy of the GNU General Public License
  41  * along with this program; if not, write to the Free Software
  42  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  43  * USA.
  44  */
  45
  46 #ifndef MPT3SAS_CTL_H_INCLUDED
  47 #define MPT3SAS_CTL_H_INCLUDED
  48
  49 #ifdef __KERNEL__
  50 #include <linux/miscdevice.h>
  51 #endif
  52
  53 #ifndef MPT2SAS_MINOR
  54 #define MPT2SAS_MINOR           (MPT_MINOR + 1)
  55 #endif
  56 #ifndef MPT3SAS_MINOR
  57 #define MPT3SAS_MINOR           (MPT_MINOR + 2)
  58 #endif
  59 #define MPT2SAS_DEV_NAME        "mpt2ctl"
  60 #define MPT3SAS_DEV_NAME        "mpt3ctl"
  61 #define MPT3_MAGIC_NUMBER       'L'
  62 #define MPT3_IOCTL_DEFAULT_TIMEOUT (10) /* in seconds */
  63
  64 /**
  65  * IOCTL opcodes
  66  */
  67 #define MPT3IOCINFO     _IOWR(MPT3_MAGIC_NUMBER, 17, \
  68         struct mpt3_ioctl_iocinfo)
  69 #define MPT3COMMAND     _IOWR(MPT3_MAGIC_NUMBER, 20, \
  70         struct mpt3_ioctl_command)
  71 #ifdef CONFIG_COMPAT
  72 #define MPT3COMMAND32   _IOWR(MPT3_MAGIC_NUMBER, 20, \
  73         struct mpt3_ioctl_command32)
  74 #endif
  75 #define MPT3EVENTQUERY  _IOWR(MPT3_MAGIC_NUMBER, 21, \
  76         struct mpt3_ioctl_eventquery)
  77 #define MPT3EVENTENABLE _IOWR(MPT3_MAGIC_NUMBER, 22, \
  78         struct mpt3_ioctl_eventenable)
  79 #define MPT3EVENTREPORT _IOWR(MPT3_MAGIC_NUMBER, 23, \
  80         struct mpt3_ioctl_eventreport)
  81 #define MPT3HARDRESET   _IOWR(MPT3_MAGIC_NUMBER, 24, \
  82         struct mpt3_ioctl_diag_reset)
  83 #define MPT3BTDHMAPPING _IOWR(MPT3_MAGIC_NUMBER, 31, \
  84         struct mpt3_ioctl_btdh_mapping)
  85
  86 /* diag buffer support */
  87 #define MPT3DIAGREGISTER _IOWR(MPT3_MAGIC_NUMBER, 26, \
  88         struct mpt3_diag_register)
  89 #define MPT3DIAGRELEASE _IOWR(MPT3_MAGIC_NUMBER, 27, \
  90         struct mpt3_diag_release)
  91 #define MPT3DIAGUNREGISTER _IOWR(MPT3_MAGIC_NUMBER, 28, \
  92         struct mpt3_diag_unregister)
  93 #define MPT3DIAGQUERY   _IOWR(MPT3_MAGIC_NUMBER, 29, \
  94         struct mpt3_diag_query)
  95 #define MPT3DIAGREADBUFFER _IOWR(MPT3_MAGIC_NUMBER, 30, \
  96         struct mpt3_diag_read_buffer)
  97
  98 /**
  99  * struct mpt3_ioctl_header - main header structure
 100  * @ioc_number -  IOC unit number
 101  * @port_number - IOC port number
 102  * @max_data_size - maximum number bytes to transfer on read
 103  */
 104 struct mpt3_ioctl_header {
 105         uint32_t ioc_number;
 106         uint32_t port_number;
 107         uint32_t max_data_size;
 108 };
 109
 110 /**
 111  * struct mpt3_ioctl_diag_reset - diagnostic reset
 112  * @hdr - generic header
 113  */
 114 struct mpt3_ioctl_diag_reset {
 115         struct mpt3_ioctl_header hdr;
 116 };
 117
 118
 119 /**
 120  * struct mpt3_ioctl_pci_info - pci device info
 121  * @device - pci device id
 122  * @function - pci function id
 123  * @bus - pci bus id
 124  * @segment_id - pci segment id
 125  */
 126 struct mpt3_ioctl_pci_info {
 127         union {
 128                 struct {
 129                         uint32_t device:5;
 130                         uint32_t function:3;
 131                         uint32_t bus:24;
 132                 } bits;
 133                 uint32_t  word;
 134         } u;
 135         uint32_t segment_id;
 136 };
 137
 138
 139 #define MPT2_IOCTL_INTERFACE_SCSI       (0x00)
 140 #define MPT2_IOCTL_INTERFACE_FC         (0x01)
 141 #define MPT2_IOCTL_INTERFACE_FC_IP      (0x02)
 142 #define MPT2_IOCTL_INTERFACE_SAS        (0x03)
 143 #define MPT2_IOCTL_INTERFACE_SAS2       (0x04)
 144 #define MPT2_IOCTL_INTERFACE_SAS2_SSS6200       (0x05)
 145 #define MPT3_IOCTL_INTERFACE_SAS3       (0x06)
 146 #define MPT2_IOCTL_VERSION_LENGTH       (32)
 147
 148 /**
 149  * struct mpt3_ioctl_iocinfo - generic controller info
 150  * @hdr - generic header
 151  * @adapter_type - type of adapter (spi, fc, sas)
 152  * @port_number - port number
 153  * @pci_id - PCI Id
 154  * @hw_rev - hardware revision
 155  * @sub_system_device - PCI subsystem Device ID
 156  * @sub_system_vendor - PCI subsystem Vendor ID
 157  * @rsvd0 - reserved
 158  * @firmware_version - firmware version
 159  * @bios_version - BIOS version
 160  * @driver_version - driver version - 32 ASCII characters
 161  * @rsvd1 - reserved
 162  * @scsi_id - scsi id of adapter 0
 163  * @rsvd2 - reserved
 164  * @pci_information - pci info (2nd revision)
 165  */
 166 struct mpt3_ioctl_iocinfo {
 167         struct mpt3_ioctl_header hdr;
 168         uint32_t adapter_type;
 169         uint32_t port_number;
 170         uint32_t pci_id;
 171         uint32_t hw_rev;
 172         uint32_t subsystem_device;
 173         uint32_t subsystem_vendor;
 174         uint32_t rsvd0;
 175         uint32_t firmware_version;
 176         uint32_t bios_version;
 177         uint8_t driver_version[MPT2_IOCTL_VERSION_LENGTH];
 178         uint8_t rsvd1;
 179         uint8_t scsi_id;
 180         uint16_t rsvd2;
 181         struct mpt3_ioctl_pci_info pci_information;
 182 };
 183
 184
 185 /* number of event log entries */
 186 #define MPT3SAS_CTL_EVENT_LOG_SIZE (50)
 187
 188 /**
 189  * struct mpt3_ioctl_eventquery - query event count and type
 190  * @hdr - generic header
 191  * @event_entries - number of events returned by get_event_report
 192  * @rsvd - reserved
 193  * @event_types - type of events currently being captured
 194  */
 195 struct mpt3_ioctl_eventquery {
 196         struct mpt3_ioctl_header hdr;
 197         uint16_t event_entries;
 198         uint16_t rsvd;
 199         uint32_t event_types[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
 200 };
 201
 202 /**
 203  * struct mpt3_ioctl_eventenable - enable/disable event capturing
 204  * @hdr - generic header
 205  * @event_types - toggle off/on type of events to be captured
 206  */
 207 struct mpt3_ioctl_eventenable {
 208         struct mpt3_ioctl_header hdr;
 209         uint32_t event_types[4];
 210 };
 211
 212 #define MPT3_EVENT_DATA_SIZE (192)
 213 /**
 214  * struct MPT3_IOCTL_EVENTS -
 215  * @event - the event that was reported
 216  * @context - unique value for each event assigned by driver
 217  * @data - event data returned in fw reply message
 218  */
 219 struct MPT3_IOCTL_EVENTS {
 220         uint32_t event;
 221         uint32_t context;
 222         uint8_t data[MPT3_EVENT_DATA_SIZE];
 223 };
 224
 225 /**
 226  * struct mpt3_ioctl_eventreport - returing event log
 227  * @hdr - generic header
 228  * @event_data - (see struct MPT3_IOCTL_EVENTS)
 229  */
 230 struct mpt3_ioctl_eventreport {
 231         struct mpt3_ioctl_header hdr;
 232         struct MPT3_IOCTL_EVENTS event_data[1];
 233 };
 234
 235 /**
 236  * struct mpt3_ioctl_command - generic mpt firmware passthru ioctl
 237  * @hdr - generic header
 238  * @timeout - command timeout in seconds. (if zero then use driver default
 239  *  value).
 240  * @reply_frame_buf_ptr - reply location
 241  * @data_in_buf_ptr - destination for read
 242  * @data_out_buf_ptr - data source for write
 243  * @sense_data_ptr - sense data location
 244  * @max_reply_bytes - maximum number of reply bytes to be sent to app.
 245  * @data_in_size - number bytes for data transfer in (read)
 246  * @data_out_size - number bytes for data transfer out (write)
 247  * @max_sense_bytes - maximum number of bytes for auto sense buffers
 248  * @data_sge_offset - offset in words from the start of the request message to
 249  * the first SGL
 250  * @mf[1];
 251  */
 252 struct mpt3_ioctl_command {
 253         struct mpt3_ioctl_header hdr;
 254         uint32_t timeout;
 255         void __user *reply_frame_buf_ptr;
 256         void __user *data_in_buf_ptr;
 257         void __user *data_out_buf_ptr;
 258         void __user *sense_data_ptr;
 259         uint32_t max_reply_bytes;
 260         uint32_t data_in_size;
 261         uint32_t data_out_size;
 262         uint32_t max_sense_bytes;
 263         uint32_t data_sge_offset;
 264         uint8_t mf[1];
 265 };
 266
 267 #ifdef CONFIG_COMPAT
 268 struct mpt3_ioctl_command32 {
 269         struct mpt3_ioctl_header hdr;
 270         uint32_t timeout;
 271         uint32_t reply_frame_buf_ptr;
 272         uint32_t data_in_buf_ptr;
 273         uint32_t data_out_buf_ptr;
 274         uint32_t sense_data_ptr;
 275         uint32_t max_reply_bytes;
 276         uint32_t data_in_size;
 277         uint32_t data_out_size;
 278         uint32_t max_sense_bytes;
 279         uint32_t data_sge_offset;
 280         uint8_t mf[1];
 281 };
 282 #endif
 283
 284 /**
 285  * struct mpt3_ioctl_btdh_mapping - mapping info
 286  * @hdr - generic header
 287  * @id - target device identification number
 288  * @bus - SCSI bus number that the target device exists on
 289  * @handle - device handle for the target device
 290  * @rsvd - reserved
 291  *
 292  * To obtain a bus/id the application sets
 293  * handle to valid handle, and bus/id to 0xFFFF.
 294  *
 295  * To obtain the device handle the application sets
 296  * bus/id valid value, and the handle to 0xFFFF.
 297  */
 298 struct mpt3_ioctl_btdh_mapping {
 299         struct mpt3_ioctl_header hdr;
 300         uint32_t id;
 301         uint32_t bus;
 302         uint16_t handle;
 303         uint16_t rsvd;
 304 };
 305
 306
 307
 308 /* application flags for mpt3_diag_register, mpt3_diag_query */
 309 #define MPT3_APP_FLAGS_APP_OWNED        (0x0001)
 310 #define MPT3_APP_FLAGS_BUFFER_VALID     (0x0002)
 311 #define MPT3_APP_FLAGS_FW_BUFFER_ACCESS (0x0004)
 312
 313 /* flags for mpt3_diag_read_buffer */
 314 #define MPT3_FLAGS_REREGISTER           (0x0001)
 315
 316 #define MPT3_PRODUCT_SPECIFIC_DWORDS            23
 317
 318 /**
 319  * struct mpt3_diag_register - application register with driver
 320  * @hdr - generic header
 321  * @reserved -
 322  * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
 323  * @application_flags - misc flags
 324  * @diagnostic_flags - specifies flags affecting command processing
 325  * @product_specific - product specific information
 326  * @requested_buffer_size - buffers size in bytes
 327  * @unique_id - tag specified by application that is used to signal ownership
 328  *  of the buffer.
 329  *
 330  * This will allow the driver to setup any required buffers that will be
 331  * needed by firmware to communicate with the driver.
 332  */
 333 struct mpt3_diag_register {
 334         struct mpt3_ioctl_header hdr;
 335         uint8_t reserved;
 336         uint8_t buffer_type;
 337         uint16_t application_flags;
 338         uint32_t diagnostic_flags;
 339         uint32_t product_specific[MPT3_PRODUCT_SPECIFIC_DWORDS];
 340         uint32_t requested_buffer_size;
 341         uint32_t unique_id;
 342 };
 343
 344 /**
 345  * struct mpt3_diag_unregister - application unregister with driver
 346  * @hdr - generic header
 347  * @unique_id - tag uniquely identifies the buffer to be unregistered
 348  *
 349  * This will allow the driver to cleanup any memory allocated for diag
 350  * messages and to free up any resources.
 351  */
 352 struct mpt3_diag_unregister {
 353         struct mpt3_ioctl_header hdr;
 354         uint32_t unique_id;
 355 };
 356
 357 /**
 358  * struct mpt3_diag_query - query relevant info associated with diag buffers
 359  * @hdr - generic header
 360  * @reserved -
 361  * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
 362  * @application_flags - misc flags
 363  * @diagnostic_flags - specifies flags affecting command processing
 364  * @product_specific - product specific information
 365  * @total_buffer_size - diag buffer size in bytes
 366  * @driver_added_buffer_size - size of extra space appended to end of buffer
 367  * @unique_id - unique id associated with this buffer.
 368  *
 369  * The application will send only buffer_type and unique_id.  Driver will
 370  * inspect unique_id first, if valid, fill in all the info.  If unique_id is
 371  * 0x00, the driver will return info specified by Buffer Type.
 372  */
 373 struct mpt3_diag_query {
 374         struct mpt3_ioctl_header hdr;
 375         uint8_t reserved;
 376         uint8_t buffer_type;
 377         uint16_t application_flags;
 378         uint32_t diagnostic_flags;
 379         uint32_t product_specific[MPT3_PRODUCT_SPECIFIC_DWORDS];
 380         uint32_t total_buffer_size;
 381         uint32_t driver_added_buffer_size;
 382         uint32_t unique_id;
 383 };
 384
 385 /**
 386  * struct mpt3_diag_release -  request to send Diag Release Message to firmware
 387  * @hdr - generic header
 388  * @unique_id - tag uniquely identifies the buffer to be released
 389  *
 390  * This allows ownership of the specified buffer to returned to the driver,
 391  * allowing an application to read the buffer without fear that firmware is
 392  * overwritting information in the buffer.
 393  */
 394 struct mpt3_diag_release {
 395         struct mpt3_ioctl_header hdr;
 396         uint32_t unique_id;
 397 };
 398
 399 /**
 400  * struct mpt3_diag_read_buffer - request for copy of the diag buffer
 401  * @hdr - generic header
 402  * @status -
 403  * @reserved -
 404  * @flags - misc flags
 405  * @starting_offset - starting offset within drivers buffer where to start
 406  *  reading data at into the specified application buffer
 407  * @bytes_to_read - number of bytes to copy from the drivers buffer into the
 408  *  application buffer starting at starting_offset.
 409  * @unique_id - unique id associated with this buffer.
 410  * @diagnostic_data - data payload
 411  */
 412 struct mpt3_diag_read_buffer {
 413         struct mpt3_ioctl_header hdr;
 414         uint8_t status;
 415         uint8_t reserved;
 416         uint16_t flags;
 417         uint32_t starting_offset;
 418         uint32_t bytes_to_read;
 419         uint32_t unique_id;
 420         uint32_t diagnostic_data[1];
 421 };
 422
 423 #endif /* MPT3SAS_CTL_H_INCLUDED */