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 54 #ifndef MPT3SAS_MINOR 55 #define MPT3SAS_MINOR (MPT_MINOR + 2) 56 #endif 57 #define MPT3SAS_DEV_NAME "mpt3ctl" 58 #define MPT3_MAGIC_NUMBER 'L' 59 #define MPT3_IOCTL_DEFAULT_TIMEOUT (10) /* in seconds */ 60 61 /** 62 * IOCTL opcodes 63 */ 64 #define MPT3IOCINFO _IOWR(MPT3_MAGIC_NUMBER, 17, \ 65 struct mpt3_ioctl_iocinfo) 66 #define MPT3COMMAND _IOWR(MPT3_MAGIC_NUMBER, 20, \ 67 struct mpt3_ioctl_command) 68 #ifdef CONFIG_COMPAT 69 #define MPT3COMMAND32 _IOWR(MPT3_MAGIC_NUMBER, 20, \ 70 struct mpt3_ioctl_command32) 71 #endif 72 #define MPT3EVENTQUERY _IOWR(MPT3_MAGIC_NUMBER, 21, \ 73 struct mpt3_ioctl_eventquery) 74 #define MPT3EVENTENABLE _IOWR(MPT3_MAGIC_NUMBER, 22, \ 75 struct mpt3_ioctl_eventenable) 76 #define MPT3EVENTREPORT _IOWR(MPT3_MAGIC_NUMBER, 23, \ 77 struct mpt3_ioctl_eventreport) 78 #define MPT3HARDRESET _IOWR(MPT3_MAGIC_NUMBER, 24, \ 79 struct mpt3_ioctl_diag_reset) 80 #define MPT3BTDHMAPPING _IOWR(MPT3_MAGIC_NUMBER, 31, \ 81 struct mpt3_ioctl_btdh_mapping) 82 83 /* diag buffer support */ 84 #define MPT3DIAGREGISTER _IOWR(MPT3_MAGIC_NUMBER, 26, \ 85 struct mpt3_diag_register) 86 #define MPT3DIAGRELEASE _IOWR(MPT3_MAGIC_NUMBER, 27, \ 87 struct mpt3_diag_release) 88 #define MPT3DIAGUNREGISTER _IOWR(MPT3_MAGIC_NUMBER, 28, \ 89 struct mpt3_diag_unregister) 90 #define MPT3DIAGQUERY _IOWR(MPT3_MAGIC_NUMBER, 29, \ 91 struct mpt3_diag_query) 92 #define MPT3DIAGREADBUFFER _IOWR(MPT3_MAGIC_NUMBER, 30, \ 93 struct mpt3_diag_read_buffer) 94 95 /** 96 * struct mpt3_ioctl_header - main header structure 97 * @ioc_number - IOC unit number 98 * @port_number - IOC port number 99 * @max_data_size - maximum number bytes to transfer on read 100 */ 101 struct mpt3_ioctl_header { 102 uint32_t ioc_number; 103 uint32_t port_number; 104 uint32_t max_data_size; 105 }; 106 107 /** 108 * struct mpt3_ioctl_diag_reset - diagnostic reset 109 * @hdr - generic header 110 */ 111 struct mpt3_ioctl_diag_reset { 112 struct mpt3_ioctl_header hdr; 113 }; 114 115 116 /** 117 * struct mpt3_ioctl_pci_info - pci device info 118 * @device - pci device id 119 * @function - pci function id 120 * @bus - pci bus id 121 * @segment_id - pci segment id 122 */ 123 struct mpt3_ioctl_pci_info { 124 union { 125 struct { 126 uint32_t device:5; 127 uint32_t function:3; 128 uint32_t bus:24; 129 } bits; 130 uint32_t word; 131 } u; 132 uint32_t segment_id; 133 }; 134 135 136 #define MPT2_IOCTL_INTERFACE_SCSI (0x00) 137 #define MPT2_IOCTL_INTERFACE_FC (0x01) 138 #define MPT2_IOCTL_INTERFACE_FC_IP (0x02) 139 #define MPT2_IOCTL_INTERFACE_SAS (0x03) 140 #define MPT2_IOCTL_INTERFACE_SAS2 (0x04) 141 #define MPT3_IOCTL_INTERFACE_SAS3 (0x06) 142 #define MPT2_IOCTL_VERSION_LENGTH (32) 143 144 /** 145 * struct mpt3_ioctl_iocinfo - generic controller info 146 * @hdr - generic header 147 * @adapter_type - type of adapter (spi, fc, sas) 148 * @port_number - port number 149 * @pci_id - PCI Id 150 * @hw_rev - hardware revision 151 * @sub_system_device - PCI subsystem Device ID 152 * @sub_system_vendor - PCI subsystem Vendor ID 153 * @rsvd0 - reserved 154 * @firmware_version - firmware version 155 * @bios_version - BIOS version 156 * @driver_version - driver version - 32 ASCII characters 157 * @rsvd1 - reserved 158 * @scsi_id - scsi id of adapter 0 159 * @rsvd2 - reserved 160 * @pci_information - pci info (2nd revision) 161 */ 162 struct mpt3_ioctl_iocinfo { 163 struct mpt3_ioctl_header hdr; 164 uint32_t adapter_type; 165 uint32_t port_number; 166 uint32_t pci_id; 167 uint32_t hw_rev; 168 uint32_t subsystem_device; 169 uint32_t subsystem_vendor; 170 uint32_t rsvd0; 171 uint32_t firmware_version; 172 uint32_t bios_version; 173 uint8_t driver_version[MPT2_IOCTL_VERSION_LENGTH]; 174 uint8_t rsvd1; 175 uint8_t scsi_id; 176 uint16_t rsvd2; 177 struct mpt3_ioctl_pci_info pci_information; 178 }; 179 180 181 /* number of event log entries */ 182 #define MPT3SAS_CTL_EVENT_LOG_SIZE (50) 183 184 /** 185 * struct mpt3_ioctl_eventquery - query event count and type 186 * @hdr - generic header 187 * @event_entries - number of events returned by get_event_report 188 * @rsvd - reserved 189 * @event_types - type of events currently being captured 190 */ 191 struct mpt3_ioctl_eventquery { 192 struct mpt3_ioctl_header hdr; 193 uint16_t event_entries; 194 uint16_t rsvd; 195 uint32_t event_types[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS]; 196 }; 197 198 /** 199 * struct mpt3_ioctl_eventenable - enable/disable event capturing 200 * @hdr - generic header 201 * @event_types - toggle off/on type of events to be captured 202 */ 203 struct mpt3_ioctl_eventenable { 204 struct mpt3_ioctl_header hdr; 205 uint32_t event_types[4]; 206 }; 207 208 #define MPT3_EVENT_DATA_SIZE (192) 209 /** 210 * struct MPT3_IOCTL_EVENTS - 211 * @event - the event that was reported 212 * @context - unique value for each event assigned by driver 213 * @data - event data returned in fw reply message 214 */ 215 struct MPT3_IOCTL_EVENTS { 216 uint32_t event; 217 uint32_t context; 218 uint8_t data[MPT3_EVENT_DATA_SIZE]; 219 }; 220 221 /** 222 * struct mpt3_ioctl_eventreport - returing event log 223 * @hdr - generic header 224 * @event_data - (see struct MPT3_IOCTL_EVENTS) 225 */ 226 struct mpt3_ioctl_eventreport { 227 struct mpt3_ioctl_header hdr; 228 struct MPT3_IOCTL_EVENTS event_data[1]; 229 }; 230 231 /** 232 * struct mpt3_ioctl_command - generic mpt firmware passthru ioctl 233 * @hdr - generic header 234 * @timeout - command timeout in seconds. (if zero then use driver default 235 * value). 236 * @reply_frame_buf_ptr - reply location 237 * @data_in_buf_ptr - destination for read 238 * @data_out_buf_ptr - data source for write 239 * @sense_data_ptr - sense data location 240 * @max_reply_bytes - maximum number of reply bytes to be sent to app. 241 * @data_in_size - number bytes for data transfer in (read) 242 * @data_out_size - number bytes for data transfer out (write) 243 * @max_sense_bytes - maximum number of bytes for auto sense buffers 244 * @data_sge_offset - offset in words from the start of the request message to 245 * the first SGL 246 * @mf[1]; 247 */ 248 struct mpt3_ioctl_command { 249 struct mpt3_ioctl_header hdr; 250 uint32_t timeout; 251 void __user *reply_frame_buf_ptr; 252 void __user *data_in_buf_ptr; 253 void __user *data_out_buf_ptr; 254 void __user *sense_data_ptr; 255 uint32_t max_reply_bytes; 256 uint32_t data_in_size; 257 uint32_t data_out_size; 258 uint32_t max_sense_bytes; 259 uint32_t data_sge_offset; 260 uint8_t mf[1]; 261 }; 262 263 #ifdef CONFIG_COMPAT 264 struct mpt3_ioctl_command32 { 265 struct mpt3_ioctl_header hdr; 266 uint32_t timeout; 267 uint32_t reply_frame_buf_ptr; 268 uint32_t data_in_buf_ptr; 269 uint32_t data_out_buf_ptr; 270 uint32_t sense_data_ptr; 271 uint32_t max_reply_bytes; 272 uint32_t data_in_size; 273 uint32_t data_out_size; 274 uint32_t max_sense_bytes; 275 uint32_t data_sge_offset; 276 uint8_t mf[1]; 277 }; 278 #endif 279 280 /** 281 * struct mpt3_ioctl_btdh_mapping - mapping info 282 * @hdr - generic header 283 * @id - target device identification number 284 * @bus - SCSI bus number that the target device exists on 285 * @handle - device handle for the target device 286 * @rsvd - reserved 287 * 288 * To obtain a bus/id the application sets 289 * handle to valid handle, and bus/id to 0xFFFF. 290 * 291 * To obtain the device handle the application sets 292 * bus/id valid value, and the handle to 0xFFFF. 293 */ 294 struct mpt3_ioctl_btdh_mapping { 295 struct mpt3_ioctl_header hdr; 296 uint32_t id; 297 uint32_t bus; 298 uint16_t handle; 299 uint16_t rsvd; 300 }; 301 302 303 304 /* application flags for mpt3_diag_register, mpt3_diag_query */ 305 #define MPT3_APP_FLAGS_APP_OWNED (0x0001) 306 #define MPT3_APP_FLAGS_BUFFER_VALID (0x0002) 307 #define MPT3_APP_FLAGS_FW_BUFFER_ACCESS (0x0004) 308 309 /* flags for mpt3_diag_read_buffer */ 310 #define MPT3_FLAGS_REREGISTER (0x0001) 311 312 #define MPT3_PRODUCT_SPECIFIC_DWORDS 23 313 314 /** 315 * struct mpt3_diag_register - application register with driver 316 * @hdr - generic header 317 * @reserved - 318 * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED 319 * @application_flags - misc flags 320 * @diagnostic_flags - specifies flags affecting command processing 321 * @product_specific - product specific information 322 * @requested_buffer_size - buffers size in bytes 323 * @unique_id - tag specified by application that is used to signal ownership 324 * of the buffer. 325 * 326 * This will allow the driver to setup any required buffers that will be 327 * needed by firmware to communicate with the driver. 328 */ 329 struct mpt3_diag_register { 330 struct mpt3_ioctl_header hdr; 331 uint8_t reserved; 332 uint8_t buffer_type; 333 uint16_t application_flags; 334 uint32_t diagnostic_flags; 335 uint32_t product_specific[MPT3_PRODUCT_SPECIFIC_DWORDS]; 336 uint32_t requested_buffer_size; 337 uint32_t unique_id; 338 }; 339 340 /** 341 * struct mpt3_diag_unregister - application unregister with driver 342 * @hdr - generic header 343 * @unique_id - tag uniquely identifies the buffer to be unregistered 344 * 345 * This will allow the driver to cleanup any memory allocated for diag 346 * messages and to free up any resources. 347 */ 348 struct mpt3_diag_unregister { 349 struct mpt3_ioctl_header hdr; 350 uint32_t unique_id; 351 }; 352 353 /** 354 * struct mpt3_diag_query - query relevant info associated with diag buffers 355 * @hdr - generic header 356 * @reserved - 357 * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED 358 * @application_flags - misc flags 359 * @diagnostic_flags - specifies flags affecting command processing 360 * @product_specific - product specific information 361 * @total_buffer_size - diag buffer size in bytes 362 * @driver_added_buffer_size - size of extra space appended to end of buffer 363 * @unique_id - unique id associated with this buffer. 364 * 365 * The application will send only buffer_type and unique_id. Driver will 366 * inspect unique_id first, if valid, fill in all the info. If unique_id is 367 * 0x00, the driver will return info specified by Buffer Type. 368 */ 369 struct mpt3_diag_query { 370 struct mpt3_ioctl_header hdr; 371 uint8_t reserved; 372 uint8_t buffer_type; 373 uint16_t application_flags; 374 uint32_t diagnostic_flags; 375 uint32_t product_specific[MPT3_PRODUCT_SPECIFIC_DWORDS]; 376 uint32_t total_buffer_size; 377 uint32_t driver_added_buffer_size; 378 uint32_t unique_id; 379 }; 380 381 /** 382 * struct mpt3_diag_release - request to send Diag Release Message to firmware 383 * @hdr - generic header 384 * @unique_id - tag uniquely identifies the buffer to be released 385 * 386 * This allows ownership of the specified buffer to returned to the driver, 387 * allowing an application to read the buffer without fear that firmware is 388 * overwritting information in the buffer. 389 */ 390 struct mpt3_diag_release { 391 struct mpt3_ioctl_header hdr; 392 uint32_t unique_id; 393 }; 394 395 /** 396 * struct mpt3_diag_read_buffer - request for copy of the diag buffer 397 * @hdr - generic header 398 * @status - 399 * @reserved - 400 * @flags - misc flags 401 * @starting_offset - starting offset within drivers buffer where to start 402 * reading data at into the specified application buffer 403 * @bytes_to_read - number of bytes to copy from the drivers buffer into the 404 * application buffer starting at starting_offset. 405 * @unique_id - unique id associated with this buffer. 406 * @diagnostic_data - data payload 407 */ 408 struct mpt3_diag_read_buffer { 409 struct mpt3_ioctl_header hdr; 410 uint8_t status; 411 uint8_t reserved; 412 uint16_t flags; 413 uint32_t starting_offset; 414 uint32_t bytes_to_read; 415 uint32_t unique_id; 416 uint32_t diagnostic_data[1]; 417 }; 418 419 #endif /* MPT3SAS_CTL_H_INCLUDED */ 420