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 MPT3_IOCTL_INTERFACE_SAS35      (0x07)
 147 #define MPT2_IOCTL_VERSION_LENGTH       (32)
 148
 149 /**
 150  * struct mpt3_ioctl_iocinfo - generic controller info
 151  * @hdr - generic header
 152  * @adapter_type - type of adapter (spi, fc, sas)
 153  * @port_number - port number
 154  * @pci_id - PCI Id
 155  * @hw_rev - hardware revision
 156  * @sub_system_device - PCI subsystem Device ID
 157  * @sub_system_vendor - PCI subsystem Vendor ID
 158  * @rsvd0 - reserved
 159  * @firmware_version - firmware version
 160  * @bios_version - BIOS version
 161  * @driver_version - driver version - 32 ASCII characters
 162  * @rsvd1 - reserved
 163  * @scsi_id - scsi id of adapter 0
 164  * @rsvd2 - reserved
 165  * @pci_information - pci info (2nd revision)
 166  */
 167 struct mpt3_ioctl_iocinfo {
 168         struct mpt3_ioctl_header hdr;
 169         uint32_t adapter_type;
 170         uint32_t port_number;
 171         uint32_t pci_id;
 172         uint32_t hw_rev;
 173         uint32_t subsystem_device;
 174         uint32_t subsystem_vendor;
 175         uint32_t rsvd0;
 176         uint32_t firmware_version;
 177         uint32_t bios_version;
 178         uint8_t driver_version[MPT2_IOCTL_VERSION_LENGTH];
 179         uint8_t rsvd1;
 180         uint8_t scsi_id;
 181         uint16_t rsvd2;
 182         struct mpt3_ioctl_pci_info pci_information;
 183 };
 184
 185
 186 /* number of event log entries */
 187 #define MPT3SAS_CTL_EVENT_LOG_SIZE (50)
 188
 189 /**
 190  * struct mpt3_ioctl_eventquery - query event count and type
 191  * @hdr - generic header
 192  * @event_entries - number of events returned by get_event_report
 193  * @rsvd - reserved
 194  * @event_types - type of events currently being captured
 195  */
 196 struct mpt3_ioctl_eventquery {
 197         struct mpt3_ioctl_header hdr;
 198         uint16_t event_entries;
 199         uint16_t rsvd;
 200         uint32_t event_types[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
 201 };
 202
 203 /**
 204  * struct mpt3_ioctl_eventenable - enable/disable event capturing
 205  * @hdr - generic header
 206  * @event_types - toggle off/on type of events to be captured
 207  */
 208 struct mpt3_ioctl_eventenable {
 209         struct mpt3_ioctl_header hdr;
 210         uint32_t event_types[4];
 211 };
 212
 213 #define MPT3_EVENT_DATA_SIZE (192)
 214 /**
 215  * struct MPT3_IOCTL_EVENTS -
 216  * @event - the event that was reported
 217  * @context - unique value for each event assigned by driver
 218  * @data - event data returned in fw reply message
 219  */
 220 struct MPT3_IOCTL_EVENTS {
 221         uint32_t event;
 222         uint32_t context;
 223         uint8_t data[MPT3_EVENT_DATA_SIZE];
 224 };
 225
 226 /**
 227  * struct mpt3_ioctl_eventreport - returing event log
 228  * @hdr - generic header
 229  * @event_data - (see struct MPT3_IOCTL_EVENTS)
 230  */
 231 struct mpt3_ioctl_eventreport {
 232         struct mpt3_ioctl_header hdr;
 233         struct MPT3_IOCTL_EVENTS event_data[1];
 234 };
 235
 236 /**
 237  * struct mpt3_ioctl_command - generic mpt firmware passthru ioctl
 238  * @hdr - generic header
 239  * @timeout - command timeout in seconds. (if zero then use driver default
 240  *  value).
 241  * @reply_frame_buf_ptr - reply location
 242  * @data_in_buf_ptr - destination for read
 243  * @data_out_buf_ptr - data source for write
 244  * @sense_data_ptr - sense data location
 245  * @max_reply_bytes - maximum number of reply bytes to be sent to app.
 246  * @data_in_size - number bytes for data transfer in (read)
 247  * @data_out_size - number bytes for data transfer out (write)
 248  * @max_sense_bytes - maximum number of bytes for auto sense buffers
 249  * @data_sge_offset - offset in words from the start of the request message to
 250  * the first SGL
 251  * @mf[1];
 252  */
 253 struct mpt3_ioctl_command {
 254         struct mpt3_ioctl_header hdr;
 255         uint32_t timeout;
 256         void __user *reply_frame_buf_ptr;
 257         void __user *data_in_buf_ptr;
 258         void __user *data_out_buf_ptr;
 259         void __user *sense_data_ptr;
 260         uint32_t max_reply_bytes;
 261         uint32_t data_in_size;
 262         uint32_t data_out_size;
 263         uint32_t max_sense_bytes;
 264         uint32_t data_sge_offset;
 265         uint8_t mf[1];
 266 };
 267
 268 #ifdef CONFIG_COMPAT
 269 struct mpt3_ioctl_command32 {
 270         struct mpt3_ioctl_header hdr;
 271         uint32_t timeout;
 272         uint32_t reply_frame_buf_ptr;
 273         uint32_t data_in_buf_ptr;
 274         uint32_t data_out_buf_ptr;
 275         uint32_t sense_data_ptr;
 276         uint32_t max_reply_bytes;
 277         uint32_t data_in_size;
 278         uint32_t data_out_size;
 279         uint32_t max_sense_bytes;
 280         uint32_t data_sge_offset;
 281         uint8_t mf[1];
 282 };
 283 #endif
 284
 285 /**
 286  * struct mpt3_ioctl_btdh_mapping - mapping info
 287  * @hdr - generic header
 288  * @id - target device identification number
 289  * @bus - SCSI bus number that the target device exists on
 290  * @handle - device handle for the target device
 291  * @rsvd - reserved
 292  *
 293  * To obtain a bus/id the application sets
 294  * handle to valid handle, and bus/id to 0xFFFF.
 295  *
 296  * To obtain the device handle the application sets
 297  * bus/id valid value, and the handle to 0xFFFF.
 298  */
 299 struct mpt3_ioctl_btdh_mapping {
 300         struct mpt3_ioctl_header hdr;
 301         uint32_t id;
 302         uint32_t bus;
 303         uint16_t handle;
 304         uint16_t rsvd;
 305 };
 306
 307
 308
 309 /* application flags for mpt3_diag_register, mpt3_diag_query */
 310 #define MPT3_APP_FLAGS_APP_OWNED        (0x0001)
 311 #define MPT3_APP_FLAGS_BUFFER_VALID     (0x0002)
 312 #define MPT3_APP_FLAGS_FW_BUFFER_ACCESS (0x0004)
 313
 314 /* flags for mpt3_diag_read_buffer */
 315 #define MPT3_FLAGS_REREGISTER           (0x0001)
 316
 317 #define MPT3_PRODUCT_SPECIFIC_DWORDS            23
 318
 319 /**
 320  * struct mpt3_diag_register - application register with driver
 321  * @hdr - generic header
 322  * @reserved -
 323  * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
 324  * @application_flags - misc flags
 325  * @diagnostic_flags - specifies flags affecting command processing
 326  * @product_specific - product specific information
 327  * @requested_buffer_size - buffers size in bytes
 328  * @unique_id - tag specified by application that is used to signal ownership
 329  *  of the buffer.
 330  *
 331  * This will allow the driver to setup any required buffers that will be
 332  * needed by firmware to communicate with the driver.
 333  */
 334 struct mpt3_diag_register {
 335         struct mpt3_ioctl_header hdr;
 336         uint8_t reserved;
 337         uint8_t buffer_type;
 338         uint16_t application_flags;
 339         uint32_t diagnostic_flags;
 340         uint32_t product_specific[MPT3_PRODUCT_SPECIFIC_DWORDS];
 341         uint32_t requested_buffer_size;
 342         uint32_t unique_id;
 343 };
 344
 345 /**
 346  * struct mpt3_diag_unregister - application unregister with driver
 347  * @hdr - generic header
 348  * @unique_id - tag uniquely identifies the buffer to be unregistered
 349  *
 350  * This will allow the driver to cleanup any memory allocated for diag
 351  * messages and to free up any resources.
 352  */
 353 struct mpt3_diag_unregister {
 354         struct mpt3_ioctl_header hdr;
 355         uint32_t unique_id;
 356 };
 357
 358 /**
 359  * struct mpt3_diag_query - query relevant info associated with diag buffers
 360  * @hdr - generic header
 361  * @reserved -
 362  * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
 363  * @application_flags - misc flags
 364  * @diagnostic_flags - specifies flags affecting command processing
 365  * @product_specific - product specific information
 366  * @total_buffer_size - diag buffer size in bytes
 367  * @driver_added_buffer_size - size of extra space appended to end of buffer
 368  * @unique_id - unique id associated with this buffer.
 369  *
 370  * The application will send only buffer_type and unique_id.  Driver will
 371  * inspect unique_id first, if valid, fill in all the info.  If unique_id is
 372  * 0x00, the driver will return info specified by Buffer Type.
 373  */
 374 struct mpt3_diag_query {
 375         struct mpt3_ioctl_header hdr;
 376         uint8_t reserved;
 377         uint8_t buffer_type;
 378         uint16_t application_flags;
 379         uint32_t diagnostic_flags;
 380         uint32_t product_specific[MPT3_PRODUCT_SPECIFIC_DWORDS];
 381         uint32_t total_buffer_size;
 382         uint32_t driver_added_buffer_size;
 383         uint32_t unique_id;
 384 };
 385
 386 /**
 387  * struct mpt3_diag_release -  request to send Diag Release Message to firmware
 388  * @hdr - generic header
 389  * @unique_id - tag uniquely identifies the buffer to be released
 390  *
 391  * This allows ownership of the specified buffer to returned to the driver,
 392  * allowing an application to read the buffer without fear that firmware is
 393  * overwriting information in the buffer.
 394  */
 395 struct mpt3_diag_release {
 396         struct mpt3_ioctl_header hdr;
 397         uint32_t unique_id;
 398 };
 399
 400 /**
 401  * struct mpt3_diag_read_buffer - request for copy of the diag buffer
 402  * @hdr - generic header
 403  * @status -
 404  * @reserved -
 405  * @flags - misc flags
 406  * @starting_offset - starting offset within drivers buffer where to start
 407  *  reading data at into the specified application buffer
 408  * @bytes_to_read - number of bytes to copy from the drivers buffer into the
 409  *  application buffer starting at starting_offset.
 410  * @unique_id - unique id associated with this buffer.
 411  * @diagnostic_data - data payload
 412  */
 413 struct mpt3_diag_read_buffer {
 414         struct mpt3_ioctl_header hdr;
 415         uint8_t status;
 416         uint8_t reserved;
 417         uint16_t flags;
 418         uint32_t starting_offset;
 419         uint32_t bytes_to_read;
 420         uint32_t unique_id;
 421         uint32_t diagnostic_data[1];
 422 };
 423
 424 #endif /* MPT3SAS_CTL_H_INCLUDED */