git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 89a36810 AR |
1 | /* |
| 2 | * pmcraid.h -- PMC Sierra MaxRAID controller driver header file | |
| 3 | * | |
| 729c8456 AR |
4 | * Written By: Anil Ravindranath<anil_ravindranath@pmc-sierra.com> |
| 5 | * PMC-Sierra Inc | |
| 6 | * | |
| 89a36810 AR |
7 | * Copyright (C) 2008, 2009 PMC Sierra Inc. |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or modify | |
| 10 | * it under the terms of the GNU General Public License as published by | |
| 11 | * the Free Software Foundation; either version 2 of the License, or | |
| 12 | * (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 | * You should have received a copy of the GNU General Public License | |
| 20 | * along with this program; if not, write to the Free Software | |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 22 | */ | |
| 23 | ||
| 24 | #ifndef _PMCRAID_H | |
| 25 | #define _PMCRAID_H | |
| 26 | ||
| 27 | #include <linux/version.h> | |
| 28 | #include <linux/types.h> | |
| 29 | #include <linux/completion.h> | |
| 30 | #include <linux/list.h> | |
| 31 | #include <scsi/scsi.h> | |
| 89a36810 AR |
32 | #include <scsi/scsi_cmnd.h> |
| 33 | #include <linux/cdev.h> | |
| 34 | #include <net/netlink.h> | |
| 35 | #include <net/genetlink.h> | |
| 36 | #include <linux/connector.h> | |
| 37 | /* | |
| 38 | * Driver name : string representing the driver name | |
| 39 | * Device file : /dev file to be used for management interfaces | |
| 40 | * Driver version: version string in major_version.minor_version.patch format | |
| 41 | * Driver date : date information in "Mon dd yyyy" format | |
| 42 | */ | |
| c20c4267 | 43 | #define PMCRAID_DRIVER_NAME "PMC MaxRAID" |
| 89a36810 | 44 | #define PMCRAID_DEVFILE "pmcsas" |
| c20c4267 AR |
45 | #define PMCRAID_DRIVER_VERSION "2.0.2" |
| 46 | #define PMCRAID_DRIVER_DATE __DATE__ | |
| 47 | ||
| 48 | #define PMCRAID_FW_VERSION_1 0x002 | |
| 89a36810 AR |
49 | |
| 50 | /* Maximum number of adapters supported by current version of the driver */ | |
| 51 | #define PMCRAID_MAX_ADAPTERS 1024 | |
| 52 | ||
| 53 | /* Bit definitions as per firmware, bit position [0][1][2].....[31] */ | |
| 54 | #define PMC_BIT8(n) (1 << (7-n)) | |
| 55 | #define PMC_BIT16(n) (1 << (15-n)) | |
| 56 | #define PMC_BIT32(n) (1 << (31-n)) | |
| 57 | ||
| 58 | /* PMC PCI vendor ID and device ID values */ | |
| 59 | #define PCI_VENDOR_ID_PMC 0x11F8 | |
| 60 | #define PCI_DEVICE_ID_PMC_MAXRAID 0x5220 | |
| 61 | ||
| 62 | /* | |
| 63 | * MAX_CMD : maximum commands that can be outstanding with IOA | |
| 64 | * MAX_IO_CMD : command blocks available for IO commands | |
| 65 | * MAX_HCAM_CMD : command blocks avaibale for HCAMS | |
| 66 | * MAX_INTERNAL_CMD : command blocks avaible for internal commands like reset | |
| 67 | */ | |
| 68 | #define PMCRAID_MAX_CMD 1024 | |
| 69 | #define PMCRAID_MAX_IO_CMD 1020 | |
| 70 | #define PMCRAID_MAX_HCAM_CMD 2 | |
| 71 | #define PMCRAID_MAX_INTERNAL_CMD 2 | |
| 72 | ||
| 73 | /* MAX_IOADLS : max number of scatter-gather lists supported by IOA | |
| 74 | * IOADLS_INTERNAL : number of ioadls included as part of IOARCB. | |
| 75 | * IOADLS_EXTERNAL : number of ioadls allocated external to IOARCB | |
| 76 | */ | |
| 77 | #define PMCRAID_IOADLS_INTERNAL 27 | |
| 78 | #define PMCRAID_IOADLS_EXTERNAL 37 | |
| 79 | #define PMCRAID_MAX_IOADLS PMCRAID_IOADLS_INTERNAL | |
| 80 | ||
| 81 | /* HRRQ_ENTRY_SIZE : size of hrrq buffer | |
| 82 | * IOARCB_ALIGNMENT : alignment required for IOARCB | |
| 83 | * IOADL_ALIGNMENT : alignment requirement for IOADLs | |
| 84 | * MSIX_VECTORS : number of MSIX vectors supported | |
| 85 | */ | |
| 86 | #define HRRQ_ENTRY_SIZE sizeof(__le32) | |
| 87 | #define PMCRAID_IOARCB_ALIGNMENT 32 | |
| 88 | #define PMCRAID_IOADL_ALIGNMENT 16 | |
| 89 | #define PMCRAID_IOASA_ALIGNMENT 4 | |
| c20c4267 | 90 | #define PMCRAID_NUM_MSIX_VECTORS 16 |
| 89a36810 AR |
91 | |
| 92 | /* various other limits */ | |
| c20c4267 AR |
93 | #define PMCRAID_VENDOR_ID_LEN 8 |
| 94 | #define PMCRAID_PRODUCT_ID_LEN 16 | |
| 95 | #define PMCRAID_SERIAL_NUM_LEN 8 | |
| 96 | #define PMCRAID_LUN_LEN 8 | |
| 97 | #define PMCRAID_MAX_CDB_LEN 16 | |
| 98 | #define PMCRAID_DEVICE_ID_LEN 8 | |
| 99 | #define PMCRAID_SENSE_DATA_LEN 256 | |
| 100 | #define PMCRAID_ADD_CMD_PARAM_LEN 48 | |
| 89a36810 AR |
101 | |
| 102 | #define PMCRAID_MAX_BUS_TO_SCAN 1 | |
| 103 | #define PMCRAID_MAX_NUM_TARGETS_PER_BUS 256 | |
| 104 | #define PMCRAID_MAX_NUM_LUNS_PER_TARGET 8 | |
| 105 | ||
| 106 | /* IOA bus/target/lun number of IOA resources */ | |
| 107 | #define PMCRAID_IOA_BUS_ID 0xfe | |
| 108 | #define PMCRAID_IOA_TARGET_ID 0xff | |
| 109 | #define PMCRAID_IOA_LUN_ID 0xff | |
| 110 | #define PMCRAID_VSET_BUS_ID 0x1 | |
| 111 | #define PMCRAID_VSET_LUN_ID 0x0 | |
| 112 | #define PMCRAID_PHYS_BUS_ID 0x0 | |
| 113 | #define PMCRAID_VIRTUAL_ENCL_BUS_ID 0x8 | |
| 729c8456 | 114 | #define PMCRAID_MAX_VSET_TARGETS 0x7F |
| 89a36810 AR |
115 | #define PMCRAID_MAX_VSET_LUNS_PER_TARGET 8 |
| 116 | ||
| 117 | #define PMCRAID_IOA_MAX_SECTORS 32767 | |
| 118 | #define PMCRAID_VSET_MAX_SECTORS 512 | |
| 119 | #define PMCRAID_MAX_CMD_PER_LUN 254 | |
| 120 | ||
| c20c4267 AR |
121 | /* Number of configuration table entries (resources), includes 1 FP, |
| 122 | * 1 Enclosure device | |
| 123 | */ | |
| 124 | #define PMCRAID_MAX_RESOURCES 256 | |
| 89a36810 AR |
125 | |
| 126 | /* Adapter Commands used by driver */ | |
| 127 | #define PMCRAID_QUERY_RESOURCE_STATE 0xC2 | |
| 128 | #define PMCRAID_RESET_DEVICE 0xC3 | |
| 129 | /* options to select reset target */ | |
| 130 | #define ENABLE_RESET_MODIFIER 0x80 | |
| 131 | #define RESET_DEVICE_LUN 0x40 | |
| 132 | #define RESET_DEVICE_TARGET 0x20 | |
| 133 | #define RESET_DEVICE_BUS 0x10 | |
| 134 | ||
| 135 | #define PMCRAID_IDENTIFY_HRRQ 0xC4 | |
| 136 | #define PMCRAID_QUERY_IOA_CONFIG 0xC5 | |
| 137 | #define PMCRAID_QUERY_CMD_STATUS 0xCB | |
| 138 | #define PMCRAID_ABORT_CMD 0xC7 | |
| 139 | ||
| 140 | /* CANCEL ALL command, provides option for setting SYNC_COMPLETE | |
| 141 | * on the target resources for which commands got cancelled | |
| 142 | */ | |
| 143 | #define PMCRAID_CANCEL_ALL_REQUESTS 0xCE | |
| 144 | #define PMCRAID_SYNC_COMPLETE_AFTER_CANCEL PMC_BIT8(0) | |
| 145 | ||
| 146 | /* HCAM command and types of HCAM supported by IOA */ | |
| 147 | #define PMCRAID_HOST_CONTROLLED_ASYNC 0xCF | |
| 148 | #define PMCRAID_HCAM_CODE_CONFIG_CHANGE 0x01 | |
| 149 | #define PMCRAID_HCAM_CODE_LOG_DATA 0x02 | |
| 150 | ||
| 151 | /* IOA shutdown command and various shutdown types */ | |
| 152 | #define PMCRAID_IOA_SHUTDOWN 0xF7 | |
| 153 | #define PMCRAID_SHUTDOWN_NORMAL 0x00 | |
| 154 | #define PMCRAID_SHUTDOWN_PREPARE_FOR_NORMAL 0x40 | |
| 155 | #define PMCRAID_SHUTDOWN_NONE 0x100 | |
| 156 | #define PMCRAID_SHUTDOWN_ABBREV 0x80 | |
| 157 | ||
| 158 | /* SET SUPPORTED DEVICES command and the option to select all the | |
| 159 | * devices to be supported | |
| 160 | */ | |
| 161 | #define PMCRAID_SET_SUPPORTED_DEVICES 0xFB | |
| 162 | #define ALL_DEVICES_SUPPORTED PMC_BIT8(0) | |
| 163 | ||
| 164 | /* This option is used with SCSI WRITE_BUFFER command */ | |
| 165 | #define PMCRAID_WR_BUF_DOWNLOAD_AND_SAVE 0x05 | |
| 166 | ||
| 167 | /* IOASC Codes used by driver */ | |
| 168 | #define PMCRAID_IOASC_SENSE_MASK 0xFFFFFF00 | |
| 169 | #define PMCRAID_IOASC_SENSE_KEY(ioasc) ((ioasc) >> 24) | |
| 170 | #define PMCRAID_IOASC_SENSE_CODE(ioasc) (((ioasc) & 0x00ff0000) >> 16) | |
| 171 | #define PMCRAID_IOASC_SENSE_QUAL(ioasc) (((ioasc) & 0x0000ff00) >> 8) | |
| 172 | #define PMCRAID_IOASC_SENSE_STATUS(ioasc) ((ioasc) & 0x000000ff) | |
| 173 | ||
| 174 | #define PMCRAID_IOASC_GOOD_COMPLETION 0x00000000 | |
| c20c4267 | 175 | #define PMCRAID_IOASC_GC_IOARCB_NOTFOUND 0x005A0000 |
| 89a36810 AR |
176 | #define PMCRAID_IOASC_NR_INIT_CMD_REQUIRED 0x02040200 |
| 177 | #define PMCRAID_IOASC_NR_IOA_RESET_REQUIRED 0x02048000 | |
| 178 | #define PMCRAID_IOASC_NR_SYNC_REQUIRED 0x023F0000 | |
| 179 | #define PMCRAID_IOASC_ME_READ_ERROR_NO_REALLOC 0x03110C00 | |
| 180 | #define PMCRAID_IOASC_HW_CANNOT_COMMUNICATE 0x04050000 | |
| 181 | #define PMCRAID_IOASC_HW_DEVICE_TIMEOUT 0x04080100 | |
| 182 | #define PMCRAID_IOASC_HW_DEVICE_BUS_STATUS_ERROR 0x04448500 | |
| 183 | #define PMCRAID_IOASC_HW_IOA_RESET_REQUIRED 0x04448600 | |
| 184 | #define PMCRAID_IOASC_IR_INVALID_RESOURCE_HANDLE 0x05250000 | |
| 185 | #define PMCRAID_IOASC_AC_TERMINATED_BY_HOST 0x0B5A0000 | |
| c20c4267 AR |
186 | #define PMCRAID_IOASC_UA_BUS_WAS_RESET 0x06290000 |
| 187 | #define PMCRAID_IOASC_UA_BUS_WAS_RESET_BY_OTHER 0x06298000 | |
| 89a36810 AR |
188 | |
| 189 | /* Driver defined IOASCs */ | |
| c20c4267 AR |
190 | #define PMCRAID_IOASC_IOA_WAS_RESET 0x10000001 |
| 191 | #define PMCRAID_IOASC_PCI_ACCESS_ERROR 0x10000002 | |
| 89a36810 AR |
192 | |
| 193 | /* Various timeout values (in milliseconds) used. If any of these are chip | |
| 194 | * specific, move them to pmcraid_chip_details structure. | |
| 195 | */ | |
| 196 | #define PMCRAID_PCI_DEASSERT_TIMEOUT 2000 | |
| 197 | #define PMCRAID_BIST_TIMEOUT 2000 | |
| 198 | #define PMCRAID_AENWAIT_TIMEOUT 5000 | |
| 199 | #define PMCRAID_TRANSOP_TIMEOUT 60000 | |
| 200 | ||
| 201 | #define PMCRAID_RESET_TIMEOUT (2 * HZ) | |
| 202 | #define PMCRAID_CHECK_FOR_RESET_TIMEOUT ((HZ / 10)) | |
| 203 | #define PMCRAID_VSET_IO_TIMEOUT (60 * HZ) | |
| 204 | #define PMCRAID_INTERNAL_TIMEOUT (60 * HZ) | |
| 205 | #define PMCRAID_SHUTDOWN_TIMEOUT (150 * HZ) | |
| 206 | #define PMCRAID_RESET_BUS_TIMEOUT (60 * HZ) | |
| 207 | #define PMCRAID_RESET_HOST_TIMEOUT (150 * HZ) | |
| 208 | #define PMCRAID_REQUEST_SENSE_TIMEOUT (30 * HZ) | |
| 209 | #define PMCRAID_SET_SUP_DEV_TIMEOUT (2 * 60 * HZ) | |
| 210 | ||
| 211 | /* structure to represent a scatter-gather element (IOADL descriptor) */ | |
| 212 | struct pmcraid_ioadl_desc { | |
| 213 | __le64 address; | |
| 214 | __le32 data_len; | |
| 215 | __u8 reserved[3]; | |
| 216 | __u8 flags; | |
| 217 | } __attribute__((packed, aligned(PMCRAID_IOADL_ALIGNMENT))); | |
| 218 | ||
| 219 | /* pmcraid_ioadl_desc.flags values */ | |
| 220 | #define IOADL_FLAGS_CHAINED PMC_BIT8(0) | |
| 221 | #define IOADL_FLAGS_LAST_DESC PMC_BIT8(1) | |
| 222 | #define IOADL_FLAGS_READ_LAST PMC_BIT8(1) | |
| 223 | #define IOADL_FLAGS_WRITE_LAST PMC_BIT8(1) | |
| 224 | ||
| 225 | ||
| 226 | /* additional IOARCB data which can be CDB or additional request parameters | |
| 227 | * or list of IOADLs. Firmware supports max of 512 bytes for IOARCB, hence then | |
| 228 | * number of IOADLs are limted to 27. In case they are more than 27, they will | |
| 229 | * be used in chained form | |
| 230 | */ | |
| 231 | struct pmcraid_ioarcb_add_data { | |
| 232 | union { | |
| 233 | struct pmcraid_ioadl_desc ioadl[PMCRAID_IOADLS_INTERNAL]; | |
| 234 | __u8 add_cmd_params[PMCRAID_ADD_CMD_PARAM_LEN]; | |
| 235 | } u; | |
| 236 | }; | |
| 237 | ||
| 238 | /* | |
| 239 | * IOA Request Control Block | |
| 240 | */ | |
| 241 | struct pmcraid_ioarcb { | |
| 242 | __le64 ioarcb_bus_addr; | |
| 243 | __le32 resource_handle; | |
| 244 | __le32 response_handle; | |
| 245 | __le64 ioadl_bus_addr; | |
| 246 | __le32 ioadl_length; | |
| 247 | __le32 data_transfer_length; | |
| 248 | __le64 ioasa_bus_addr; | |
| 249 | __le16 ioasa_len; | |
| 250 | __le16 cmd_timeout; | |
| 251 | __le16 add_cmd_param_offset; | |
| 252 | __le16 add_cmd_param_length; | |
| 253 | __le32 reserved1[2]; | |
| 254 | __le32 reserved2; | |
| 255 | __u8 request_type; | |
| 256 | __u8 request_flags0; | |
| 257 | __u8 request_flags1; | |
| 258 | __u8 hrrq_id; | |
| 259 | __u8 cdb[PMCRAID_MAX_CDB_LEN]; | |
| 260 | struct pmcraid_ioarcb_add_data add_data; | |
| 261 | } __attribute__((packed, aligned(PMCRAID_IOARCB_ALIGNMENT))); | |
| 262 | ||
| 263 | /* well known resource handle values */ | |
| 264 | #define PMCRAID_IOA_RES_HANDLE 0xffffffff | |
| 265 | #define PMCRAID_INVALID_RES_HANDLE 0 | |
| 266 | ||
| 267 | /* pmcraid_ioarcb.request_type values */ | |
| 268 | #define REQ_TYPE_SCSI 0x00 | |
| 269 | #define REQ_TYPE_IOACMD 0x01 | |
| 270 | #define REQ_TYPE_HCAM 0x02 | |
| 271 | ||
| 272 | /* pmcraid_ioarcb.flags0 values */ | |
| 273 | #define TRANSFER_DIR_WRITE PMC_BIT8(0) | |
| 274 | #define INHIBIT_UL_CHECK PMC_BIT8(2) | |
| 275 | #define SYNC_OVERRIDE PMC_BIT8(3) | |
| 276 | #define SYNC_COMPLETE PMC_BIT8(4) | |
| 277 | #define NO_LINK_DESCS PMC_BIT8(5) | |
| 278 | ||
| 279 | /* pmcraid_ioarcb.flags1 values */ | |
| 280 | #define DELAY_AFTER_RESET PMC_BIT8(0) | |
| 281 | #define TASK_TAG_SIMPLE 0x10 | |
| 282 | #define TASK_TAG_ORDERED 0x20 | |
| 283 | #define TASK_TAG_QUEUE_HEAD 0x30 | |
| 284 | ||
| 285 | /* toggle bit offset in response handle */ | |
| 286 | #define HRRQ_TOGGLE_BIT 0x01 | |
| 287 | #define HRRQ_RESPONSE_BIT 0x02 | |
| 288 | ||
| 289 | /* IOA Status Area */ | |
| 290 | struct pmcraid_ioasa_vset { | |
| 291 | __le32 failing_lba_hi; | |
| 292 | __le32 failing_lba_lo; | |
| 293 | __le32 reserved; | |
| 294 | } __attribute__((packed, aligned(4))); | |
| 295 | ||
| 296 | struct pmcraid_ioasa { | |
| 297 | __le32 ioasc; | |
| 298 | __le16 returned_status_length; | |
| 299 | __le16 available_status_length; | |
| 300 | __le32 residual_data_length; | |
| 301 | __le32 ilid; | |
| 302 | __le32 fd_ioasc; | |
| 303 | __le32 fd_res_address; | |
| 304 | __le32 fd_res_handle; | |
| 305 | __le32 reserved; | |
| 306 | ||
| 307 | /* resource specific sense information */ | |
| 308 | union { | |
| 309 | struct pmcraid_ioasa_vset vset; | |
| 310 | } u; | |
| 311 | ||
| 312 | /* IOA autosense data */ | |
| 313 | __le16 auto_sense_length; | |
| 314 | __le16 error_data_length; | |
| 315 | __u8 sense_data[PMCRAID_SENSE_DATA_LEN]; | |
| 316 | } __attribute__((packed, aligned(4))); | |
| 317 | ||
| 318 | #define PMCRAID_DRIVER_ILID 0xffffffff | |
| 319 | ||
| 320 | /* Config Table Entry per Resource */ | |
| 321 | struct pmcraid_config_table_entry { | |
| 322 | __u8 resource_type; | |
| 323 | __u8 bus_protocol; | |
| 324 | __le16 array_id; | |
| 325 | __u8 common_flags0; | |
| 326 | __u8 common_flags1; | |
| 327 | __u8 unique_flags0; | |
| 328 | __u8 unique_flags1; /*also used as vset target_id */ | |
| 329 | __le32 resource_handle; | |
| 330 | __le32 resource_address; | |
| 331 | __u8 device_id[PMCRAID_DEVICE_ID_LEN]; | |
| 332 | __u8 lun[PMCRAID_LUN_LEN]; | |
| 333 | } __attribute__((packed, aligned(4))); | |
| 334 | ||
| c20c4267 AR |
335 | /* extended configuration table sizes are of 64 bytes in size */ |
| 336 | #define PMCRAID_CFGTE_EXT_SIZE 32 | |
| 337 | struct pmcraid_config_table_entry_ext { | |
| 338 | struct pmcraid_config_table_entry cfgte; | |
| 339 | __u8 cfgte_ext[PMCRAID_CFGTE_EXT_SIZE]; | |
| 340 | }; | |
| 341 | ||
| 89a36810 AR |
342 | /* resource types (config_table_entry.resource_type values) */ |
| 343 | #define RES_TYPE_AF_DASD 0x00 | |
| 344 | #define RES_TYPE_GSCSI 0x01 | |
| 345 | #define RES_TYPE_VSET 0x02 | |
| 346 | #define RES_TYPE_IOA_FP 0xFF | |
| 347 | ||
| 348 | #define RES_IS_IOA(res) ((res).resource_type == RES_TYPE_IOA_FP) | |
| 349 | #define RES_IS_GSCSI(res) ((res).resource_type == RES_TYPE_GSCSI) | |
| 350 | #define RES_IS_VSET(res) ((res).resource_type == RES_TYPE_VSET) | |
| 351 | #define RES_IS_AFDASD(res) ((res).resource_type == RES_TYPE_AF_DASD) | |
| 352 | ||
| 353 | /* bus_protocol values used by driver */ | |
| 354 | #define RES_TYPE_VENCLOSURE 0x8 | |
| 355 | ||
| 356 | /* config_table_entry.common_flags0 */ | |
| 357 | #define MULTIPATH_RESOURCE PMC_BIT32(0) | |
| 358 | ||
| 359 | /* unique_flags1 */ | |
| 360 | #define IMPORT_MODE_MANUAL PMC_BIT8(0) | |
| 361 | ||
| 362 | /* well known resource handle values */ | |
| 363 | #define RES_HANDLE_IOA 0xFFFFFFFF | |
| 364 | #define RES_HANDLE_NONE 0x00000000 | |
| 365 | ||
| 366 | /* well known resource address values */ | |
| 367 | #define RES_ADDRESS_IOAFP 0xFEFFFFFF | |
| 368 | #define RES_ADDRESS_INVALID 0xFFFFFFFF | |
| 369 | ||
| 370 | /* BUS/TARGET/LUN values from resource_addrr */ | |
| 371 | #define RES_BUS(res_addr) (le32_to_cpu(res_addr) & 0xFF) | |
| 372 | #define RES_TARGET(res_addr) ((le32_to_cpu(res_addr) >> 16) & 0xFF) | |
| 373 | #define RES_LUN(res_addr) 0x0 | |
| 374 | ||
| 375 | /* configuration table structure */ | |
| 376 | struct pmcraid_config_table { | |
| 377 | __le16 num_entries; | |
| 378 | __u8 table_format; | |
| 379 | __u8 reserved1; | |
| 380 | __u8 flags; | |
| 381 | __u8 reserved2[11]; | |
| c20c4267 AR |
382 | union { |
| 383 | struct pmcraid_config_table_entry | |
| 384 | entries[PMCRAID_MAX_RESOURCES]; | |
| 385 | struct pmcraid_config_table_entry_ext | |
| 386 | entries_ext[PMCRAID_MAX_RESOURCES]; | |
| 387 | }; | |
| 89a36810 AR |
388 | } __attribute__((packed, aligned(4))); |
| 389 | ||
| 390 | /* config_table.flags value */ | |
| 391 | #define MICROCODE_UPDATE_REQUIRED PMC_BIT32(0) | |
| 392 | ||
| 393 | /* | |
| 394 | * HCAM format | |
| 395 | */ | |
| c20c4267 | 396 | #define PMCRAID_HOSTRCB_LDNSIZE 4056 |
| 89a36810 AR |
397 | |
| 398 | /* Error log notification format */ | |
| 399 | struct pmcraid_hostrcb_error { | |
| 400 | __le32 fd_ioasc; | |
| 401 | __le32 fd_ra; | |
| 402 | __le32 fd_rh; | |
| 403 | __le32 prc; | |
| 404 | union { | |
| 405 | __u8 data[PMCRAID_HOSTRCB_LDNSIZE]; | |
| 406 | } u; | |
| 407 | } __attribute__ ((packed, aligned(4))); | |
| 408 | ||
| 409 | struct pmcraid_hcam_hdr { | |
| 410 | __u8 op_code; | |
| 411 | __u8 notification_type; | |
| 412 | __u8 notification_lost; | |
| 413 | __u8 flags; | |
| 414 | __u8 overlay_id; | |
| 415 | __u8 reserved1[3]; | |
| 416 | __le32 ilid; | |
| 417 | __le32 timestamp1; | |
| 418 | __le32 timestamp2; | |
| 419 | __le32 data_len; | |
| 420 | } __attribute__((packed, aligned(4))); | |
| 421 | ||
| 422 | #define PMCRAID_AEN_GROUP 0x3 | |
| 423 | ||
| 424 | struct pmcraid_hcam_ccn { | |
| 425 | struct pmcraid_hcam_hdr header; | |
| 426 | struct pmcraid_config_table_entry cfg_entry; | |
| c20c4267 AR |
427 | struct pmcraid_config_table_entry cfg_entry_old; |
| 428 | } __attribute__((packed, aligned(4))); | |
| 429 | ||
| 430 | #define PMCRAID_CCN_EXT_SIZE 3944 | |
| 431 | struct pmcraid_hcam_ccn_ext { | |
| 432 | struct pmcraid_hcam_hdr header; | |
| 433 | struct pmcraid_config_table_entry_ext cfg_entry; | |
| 434 | struct pmcraid_config_table_entry_ext cfg_entry_old; | |
| 435 | __u8 reserved[PMCRAID_CCN_EXT_SIZE]; | |
| 89a36810 AR |
436 | } __attribute__((packed, aligned(4))); |
| 437 | ||
| 438 | struct pmcraid_hcam_ldn { | |
| 439 | struct pmcraid_hcam_hdr header; | |
| 440 | struct pmcraid_hostrcb_error error_log; | |
| 441 | } __attribute__((packed, aligned(4))); | |
| 442 | ||
| 443 | /* pmcraid_hcam.op_code values */ | |
| 444 | #define HOSTRCB_TYPE_CCN 0xE1 | |
| 445 | #define HOSTRCB_TYPE_LDN 0xE2 | |
| 446 | ||
| 447 | /* pmcraid_hcam.notification_type values */ | |
| 448 | #define NOTIFICATION_TYPE_ENTRY_CHANGED 0x0 | |
| 449 | #define NOTIFICATION_TYPE_ENTRY_NEW 0x1 | |
| 450 | #define NOTIFICATION_TYPE_ENTRY_DELETED 0x2 | |
| c20c4267 AR |
451 | #define NOTIFICATION_TYPE_STATE_CHANGE 0x3 |
| 452 | #define NOTIFICATION_TYPE_ENTRY_STATECHANGED 0x4 | |
| 89a36810 AR |
453 | #define NOTIFICATION_TYPE_ERROR_LOG 0x10 |
| 454 | #define NOTIFICATION_TYPE_INFORMATION_LOG 0x11 | |
| 455 | ||
| 456 | #define HOSTRCB_NOTIFICATIONS_LOST PMC_BIT8(0) | |
| 457 | ||
| 458 | /* pmcraid_hcam.flags values */ | |
| 459 | #define HOSTRCB_INTERNAL_OP_ERROR PMC_BIT8(0) | |
| 460 | #define HOSTRCB_ERROR_RESPONSE_SENT PMC_BIT8(1) | |
| 461 | ||
| 462 | /* pmcraid_hcam.overlay_id values */ | |
| 463 | #define HOSTRCB_OVERLAY_ID_08 0x08 | |
| 464 | #define HOSTRCB_OVERLAY_ID_09 0x09 | |
| 465 | #define HOSTRCB_OVERLAY_ID_11 0x11 | |
| 466 | #define HOSTRCB_OVERLAY_ID_12 0x12 | |
| 467 | #define HOSTRCB_OVERLAY_ID_13 0x13 | |
| 468 | #define HOSTRCB_OVERLAY_ID_14 0x14 | |
| 469 | #define HOSTRCB_OVERLAY_ID_16 0x16 | |
| 470 | #define HOSTRCB_OVERLAY_ID_17 0x17 | |
| 471 | #define HOSTRCB_OVERLAY_ID_20 0x20 | |
| 472 | #define HOSTRCB_OVERLAY_ID_FF 0xFF | |
| 473 | ||
| 474 | /* Implementation specific card details */ | |
| 475 | struct pmcraid_chip_details { | |
| 476 | /* hardware register offsets */ | |
| 477 | unsigned long ioastatus; | |
| 478 | unsigned long ioarrin; | |
| 479 | unsigned long mailbox; | |
| 480 | unsigned long global_intr_mask; | |
| 481 | unsigned long ioa_host_intr; | |
| c20c4267 | 482 | unsigned long ioa_host_msix_intr; |
| 89a36810 AR |
483 | unsigned long ioa_host_intr_clr; |
| 484 | unsigned long ioa_host_mask; | |
| 485 | unsigned long ioa_host_mask_clr; | |
| 486 | unsigned long host_ioa_intr; | |
| 487 | unsigned long host_ioa_intr_clr; | |
| 488 | ||
| 489 | /* timeout used during transitional to operational state */ | |
| 490 | unsigned long transop_timeout; | |
| 491 | }; | |
| 492 | ||
| 493 | /* IOA to HOST doorbells (interrupts) */ | |
| 494 | #define INTRS_TRANSITION_TO_OPERATIONAL PMC_BIT32(0) | |
| 495 | #define INTRS_IOARCB_TRANSFER_FAILED PMC_BIT32(3) | |
| 496 | #define INTRS_IOA_UNIT_CHECK PMC_BIT32(4) | |
| 497 | #define INTRS_NO_HRRQ_FOR_CMD_RESPONSE PMC_BIT32(5) | |
| 498 | #define INTRS_CRITICAL_OP_IN_PROGRESS PMC_BIT32(6) | |
| 499 | #define INTRS_IO_DEBUG_ACK PMC_BIT32(7) | |
| 500 | #define INTRS_IOARRIN_LOST PMC_BIT32(27) | |
| 501 | #define INTRS_SYSTEM_BUS_MMIO_ERROR PMC_BIT32(28) | |
| 502 | #define INTRS_IOA_PROCESSOR_ERROR PMC_BIT32(29) | |
| 503 | #define INTRS_HRRQ_VALID PMC_BIT32(30) | |
| 504 | #define INTRS_OPERATIONAL_STATUS PMC_BIT32(0) | |
| c20c4267 | 505 | #define INTRS_ALLOW_MSIX_VECTOR0 PMC_BIT32(31) |
| 89a36810 AR |
506 | |
| 507 | /* Host to IOA Doorbells */ | |
| 508 | #define DOORBELL_RUNTIME_RESET PMC_BIT32(1) | |
| 509 | #define DOORBELL_IOA_RESET_ALERT PMC_BIT32(7) | |
| 510 | #define DOORBELL_IOA_DEBUG_ALERT PMC_BIT32(9) | |
| 511 | #define DOORBELL_ENABLE_DESTRUCTIVE_DIAGS PMC_BIT32(8) | |
| 512 | #define DOORBELL_IOA_START_BIST PMC_BIT32(23) | |
| c20c4267 AR |
513 | #define DOORBELL_INTR_MODE_MSIX PMC_BIT32(25) |
| 514 | #define DOORBELL_INTR_MSIX_CLR PMC_BIT32(26) | |
| 89a36810 AR |
515 | #define DOORBELL_RESET_IOA PMC_BIT32(31) |
| 516 | ||
| 517 | /* Global interrupt mask register value */ | |
| c20c4267 | 518 | #define GLOBAL_INTERRUPT_MASK 0x5ULL |
| 89a36810 AR |
519 | |
| 520 | #define PMCRAID_ERROR_INTERRUPTS (INTRS_IOARCB_TRANSFER_FAILED | \ | |
| 521 | INTRS_IOA_UNIT_CHECK | \ | |
| 522 | INTRS_NO_HRRQ_FOR_CMD_RESPONSE | \ | |
| 523 | INTRS_IOARRIN_LOST | \ | |
| 524 | INTRS_SYSTEM_BUS_MMIO_ERROR | \ | |
| 525 | INTRS_IOA_PROCESSOR_ERROR) | |
| 526 | ||
| 527 | #define PMCRAID_PCI_INTERRUPTS (PMCRAID_ERROR_INTERRUPTS | \ | |
| 528 | INTRS_HRRQ_VALID | \ | |
| c20c4267 AR |
529 | INTRS_TRANSITION_TO_OPERATIONAL |\ |
| 530 | INTRS_ALLOW_MSIX_VECTOR0) | |
| 89a36810 AR |
531 | |
| 532 | /* control_block, associated with each of the commands contains IOARCB, IOADLs | |
| 533 | * memory for IOASA. Additional 3 * 16 bytes are allocated in order to support | |
| 534 | * additional request parameters (of max size 48) any command. | |
| 535 | */ | |
| 536 | struct pmcraid_control_block { | |
| 537 | struct pmcraid_ioarcb ioarcb; | |
| 538 | struct pmcraid_ioadl_desc ioadl[PMCRAID_IOADLS_EXTERNAL + 3]; | |
| 539 | struct pmcraid_ioasa ioasa; | |
| 540 | } __attribute__ ((packed, aligned(PMCRAID_IOARCB_ALIGNMENT))); | |
| 541 | ||
| 542 | /* pmcraid_sglist - Scatter-gather list allocated for passthrough ioctls | |
| 543 | */ | |
| 544 | struct pmcraid_sglist { | |
| 545 | u32 order; | |
| 546 | u32 num_sg; | |
| 547 | u32 num_dma_sg; | |
| 548 | u32 buffer_len; | |
| 549 | struct scatterlist scatterlist[1]; | |
| 550 | }; | |
| 551 | ||
| c20c4267 AR |
552 | /* page D0 inquiry data of focal point resource */ |
| 553 | struct pmcraid_inquiry_data { | |
| 554 | __u8 ph_dev_type; | |
| 555 | __u8 page_code; | |
| 556 | __u8 reserved1; | |
| 557 | __u8 add_page_len; | |
| 558 | __u8 length; | |
| 559 | __u8 reserved2; | |
| 560 | __le16 fw_version; | |
| 561 | __u8 reserved3[16]; | |
| 562 | }; | |
| 563 | ||
| 89a36810 AR |
564 | /* pmcraid_cmd - LLD representation of SCSI command */ |
| 565 | struct pmcraid_cmd { | |
| 566 | ||
| 567 | /* Ptr and bus address of DMA.able control block for this command */ | |
| 568 | struct pmcraid_control_block *ioa_cb; | |
| 569 | dma_addr_t ioa_cb_bus_addr; | |
| 89a36810 AR |
570 | dma_addr_t dma_handle; |
| 571 | u8 *sense_buffer; | |
| 572 | ||
| 573 | /* pointer to mid layer structure of SCSI commands */ | |
| 574 | struct scsi_cmnd *scsi_cmd; | |
| 575 | ||
| 576 | struct list_head free_list; | |
| 577 | struct completion wait_for_completion; | |
| 578 | struct timer_list timer; /* needed for internal commands */ | |
| 579 | u32 timeout; /* current timeout value */ | |
| 580 | u32 index; /* index into the command list */ | |
| 581 | u8 completion_req; /* for handling internal commands */ | |
| 582 | u8 release; /* for handling completions */ | |
| 583 | ||
| 584 | void (*cmd_done) (struct pmcraid_cmd *); | |
| 585 | struct pmcraid_instance *drv_inst; | |
| 586 | ||
| 587 | struct pmcraid_sglist *sglist; /* used for passthrough IOCTLs */ | |
| 588 | ||
| c20c4267 | 589 | /* scratch used */ |
| 89a36810 | 590 | union { |
| c20c4267 | 591 | /* during reset sequence */ |
| 89a36810 AR |
592 | unsigned long time_left; |
| 593 | struct pmcraid_resource_entry *res; | |
| c20c4267 AR |
594 | int hrrq_index; |
| 595 | ||
| 596 | /* used during IO command error handling. Sense buffer | |
| 597 | * for REQUEST SENSE command if firmware is not sending | |
| 598 | * auto sense data | |
| 599 | */ | |
| 600 | struct { | |
| 601 | u8 *sense_buffer; | |
| 602 | dma_addr_t sense_buffer_dma; | |
| 603 | }; | |
| 604 | }; | |
| 89a36810 AR |
605 | }; |
| 606 | ||
| 607 | /* | |
| 608 | * Interrupt registers of IOA | |
| 609 | */ | |
| 610 | struct pmcraid_interrupts { | |
| 611 | void __iomem *ioa_host_interrupt_reg; | |
| c20c4267 | 612 | void __iomem *ioa_host_msix_interrupt_reg; |
| 89a36810 AR |
613 | void __iomem *ioa_host_interrupt_clr_reg; |
| 614 | void __iomem *ioa_host_interrupt_mask_reg; | |
| 615 | void __iomem *ioa_host_interrupt_mask_clr_reg; | |
| 616 | void __iomem *global_interrupt_mask_reg; | |
| 617 | void __iomem *host_ioa_interrupt_reg; | |
| 618 | void __iomem *host_ioa_interrupt_clr_reg; | |
| 619 | }; | |
| 620 | ||
| 621 | /* ISR parameters LLD allocates (one for each MSI-X if enabled) vectors */ | |
| 622 | struct pmcraid_isr_param { | |
| 89a36810 | 623 | struct pmcraid_instance *drv_inst; |
| c20c4267 AR |
624 | u16 vector; /* allocated msi-x vector */ |
| 625 | u8 hrrq_id; /* hrrq entry index */ | |
| 89a36810 AR |
626 | }; |
| 627 | ||
| c20c4267 | 628 | |
| 89a36810 AR |
629 | /* AEN message header sent as part of event data to applications */ |
| 630 | struct pmcraid_aen_msg { | |
| 631 | u32 hostno; | |
| 632 | u32 length; | |
| 633 | u8 reserved[8]; | |
| 634 | u8 data[0]; | |
| 635 | }; | |
| 636 | ||
| c20c4267 AR |
637 | /* Controller state event message type */ |
| 638 | struct pmcraid_state_msg { | |
| 639 | struct pmcraid_aen_msg msg; | |
| 640 | u32 ioa_state; | |
| 641 | }; | |
| 642 | ||
| 643 | #define PMC_DEVICE_EVENT_RESET_START 0x11000000 | |
| 644 | #define PMC_DEVICE_EVENT_RESET_SUCCESS 0x11000001 | |
| 645 | #define PMC_DEVICE_EVENT_RESET_FAILED 0x11000002 | |
| 646 | #define PMC_DEVICE_EVENT_SHUTDOWN_START 0x11000003 | |
| 647 | #define PMC_DEVICE_EVENT_SHUTDOWN_SUCCESS 0x11000004 | |
| 648 | #define PMC_DEVICE_EVENT_SHUTDOWN_FAILED 0x11000005 | |
| 649 | ||
| 89a36810 AR |
650 | struct pmcraid_hostrcb { |
| 651 | struct pmcraid_instance *drv_inst; | |
| 652 | struct pmcraid_aen_msg *msg; | |
| 653 | struct pmcraid_hcam_hdr *hcam; /* pointer to hcam buffer */ | |
| 654 | struct pmcraid_cmd *cmd; /* pointer to command block used */ | |
| 655 | dma_addr_t baddr; /* system address of hcam buffer */ | |
| 656 | atomic_t ignore; /* process HCAM response ? */ | |
| 657 | }; | |
| 658 | ||
| 659 | #define PMCRAID_AEN_HDR_SIZE sizeof(struct pmcraid_aen_msg) | |
| 660 | ||
| 661 | ||
| 662 | ||
| 663 | /* | |
| 664 | * Per adapter structure maintained by LLD | |
| 665 | */ | |
| 666 | struct pmcraid_instance { | |
| 667 | /* Array of allowed-to-be-exposed resources, initialized from | |
| 668 | * Configutation Table, later updated with CCNs | |
| 669 | */ | |
| 670 | struct pmcraid_resource_entry *res_entries; | |
| 671 | ||
| 672 | struct list_head free_res_q; /* res_entries lists for easy lookup */ | |
| 673 | struct list_head used_res_q; /* List of to be exposed resources */ | |
| 674 | spinlock_t resource_lock; /* spinlock to protect resource list */ | |
| 675 | ||
| 676 | void __iomem *mapped_dma_addr; | |
| 677 | void __iomem *ioa_status; /* Iomapped IOA status register */ | |
| 678 | void __iomem *mailbox; /* Iomapped mailbox register */ | |
| 679 | void __iomem *ioarrin; /* IOmapped IOARR IN register */ | |
| 680 | ||
| 681 | struct pmcraid_interrupts int_regs; | |
| 682 | struct pmcraid_chip_details *chip_cfg; | |
| 683 | ||
| 684 | /* HostRCBs needed for HCAM */ | |
| 685 | struct pmcraid_hostrcb ldn; | |
| 686 | struct pmcraid_hostrcb ccn; | |
| c20c4267 | 687 | struct pmcraid_state_msg scn; /* controller state change msg */ |
| 89a36810 AR |
688 | |
| 689 | ||
| 690 | /* Bus address of start of HRRQ */ | |
| 691 | dma_addr_t hrrq_start_bus_addr[PMCRAID_NUM_MSIX_VECTORS]; | |
| 692 | ||
| 693 | /* Pointer to 1st entry of HRRQ */ | |
| 694 | __be32 *hrrq_start[PMCRAID_NUM_MSIX_VECTORS]; | |
| 695 | ||
| 696 | /* Pointer to last entry of HRRQ */ | |
| 697 | __be32 *hrrq_end[PMCRAID_NUM_MSIX_VECTORS]; | |
| 698 | ||
| 699 | /* Pointer to current pointer of hrrq */ | |
| 700 | __be32 *hrrq_curr[PMCRAID_NUM_MSIX_VECTORS]; | |
| 701 | ||
| 702 | /* Lock for HRRQ access */ | |
| 703 | spinlock_t hrrq_lock[PMCRAID_NUM_MSIX_VECTORS]; | |
| 704 | ||
| c20c4267 AR |
705 | struct pmcraid_inquiry_data *inq_data; |
| 706 | dma_addr_t inq_data_baddr; | |
| 707 | ||
| 708 | /* size of configuration table entry, varies based on the firmware */ | |
| 709 | u32 config_table_entry_size; | |
| 710 | ||
| 89a36810 AR |
711 | /* Expected toggle bit at host */ |
| 712 | u8 host_toggle_bit[PMCRAID_NUM_MSIX_VECTORS]; | |
| 713 | ||
| 89a36810 AR |
714 | |
| 715 | /* Wait Q for threads to wait for Reset IOA completion */ | |
| 716 | wait_queue_head_t reset_wait_q; | |
| 717 | struct pmcraid_cmd *reset_cmd; | |
| 718 | ||
| 719 | /* structures for supporting SIGIO based AEN. */ | |
| 720 | struct fasync_struct *aen_queue; | |
| 721 | struct mutex aen_queue_lock; /* lock for aen subscribers list */ | |
| 722 | struct cdev cdev; | |
| 723 | ||
| 724 | struct Scsi_Host *host; /* mid layer interface structure handle */ | |
| 725 | struct pci_dev *pdev; /* PCI device structure handle */ | |
| 726 | ||
| c20c4267 AR |
727 | /* No of Reset IOA retries . IOA marked dead if threshold exceeds */ |
| 728 | u8 ioa_reset_attempts; | |
| 729 | #define PMCRAID_RESET_ATTEMPTS 3 | |
| 730 | ||
| 89a36810 AR |
731 | u8 current_log_level; /* default level for logging IOASC errors */ |
| 732 | ||
| 733 | u8 num_hrrq; /* Number of interrupt vectors allocated */ | |
| c20c4267 | 734 | u8 interrupt_mode; /* current interrupt mode legacy or msix */ |
| 89a36810 AR |
735 | dev_t dev; /* Major-Minor numbers for Char device */ |
| 736 | ||
| 737 | /* Used as ISR handler argument */ | |
| 738 | struct pmcraid_isr_param hrrq_vector[PMCRAID_NUM_MSIX_VECTORS]; | |
| 739 | ||
| c20c4267 AR |
740 | /* Message id as filled in last fired IOARCB, used to identify HRRQ */ |
| 741 | atomic_t last_message_id; | |
| 742 | ||
| 89a36810 AR |
743 | /* configuration table */ |
| 744 | struct pmcraid_config_table *cfg_table; | |
| 745 | dma_addr_t cfg_table_bus_addr; | |
| 746 | ||
| 747 | /* structures related to command blocks */ | |
| 748 | struct kmem_cache *cmd_cachep; /* cache for cmd blocks */ | |
| 749 | struct pci_pool *control_pool; /* pool for control blocks */ | |
| 750 | char cmd_pool_name[64]; /* name of cmd cache */ | |
| 751 | char ctl_pool_name[64]; /* name of control cache */ | |
| 752 | ||
| 753 | struct pmcraid_cmd *cmd_list[PMCRAID_MAX_CMD]; | |
| 754 | ||
| 755 | struct list_head free_cmd_pool; | |
| 756 | struct list_head pending_cmd_pool; | |
| c20c4267 AR |
757 | spinlock_t free_pool_lock; /* free pool lock */ |
| 758 | spinlock_t pending_pool_lock; /* pending pool lock */ | |
| 759 | ||
| 760 | /* Tasklet to handle deferred processing */ | |
| 761 | struct tasklet_struct isr_tasklet[PMCRAID_NUM_MSIX_VECTORS]; | |
| 762 | ||
| 763 | /* Work-queue (Shared) for deferred reset processing */ | |
| 764 | struct work_struct worker_q; | |
| 89a36810 AR |
765 | |
| 766 | /* No of IO commands pending with FW */ | |
| 767 | atomic_t outstanding_cmds; | |
| 768 | ||
| 769 | /* should add/delete resources to mid-layer now ?*/ | |
| 770 | atomic_t expose_resources; | |
| 771 | ||
| 89a36810 AR |
772 | |
| 773 | ||
| 774 | u32 ioa_state:4; /* For IOA Reset sequence FSM */ | |
| 775 | #define IOA_STATE_OPERATIONAL 0x0 | |
| 776 | #define IOA_STATE_UNKNOWN 0x1 | |
| 777 | #define IOA_STATE_DEAD 0x2 | |
| 778 | #define IOA_STATE_IN_SOFT_RESET 0x3 | |
| 779 | #define IOA_STATE_IN_HARD_RESET 0x4 | |
| 780 | #define IOA_STATE_IN_RESET_ALERT 0x5 | |
| 781 | #define IOA_STATE_IN_BRINGDOWN 0x6 | |
| 782 | #define IOA_STATE_IN_BRINGUP 0x7 | |
| 783 | ||
| 784 | u32 ioa_reset_in_progress:1; /* true if IOA reset is in progress */ | |
| 785 | u32 ioa_hard_reset:1; /* TRUE if Hard Reset is needed */ | |
| 786 | u32 ioa_unit_check:1; /* Indicates Unit Check condition */ | |
| 787 | u32 ioa_bringdown:1; /* whether IOA needs to be brought down */ | |
| 788 | u32 force_ioa_reset:1; /* force adapter reset ? */ | |
| 789 | u32 reinit_cfg_table:1; /* reinit config table due to lost CCN */ | |
| 790 | u32 ioa_shutdown_type:2;/* shutdown type used during reset */ | |
| 791 | #define SHUTDOWN_NONE 0x0 | |
| 792 | #define SHUTDOWN_NORMAL 0x1 | |
| 793 | #define SHUTDOWN_ABBREV 0x2 | |
| 794 | ||
| 795 | }; | |
| 796 | ||
| 797 | /* LLD maintained resource entry structure */ | |
| 798 | struct pmcraid_resource_entry { | |
| 799 | struct list_head queue; /* link to "to be exposed" resources */ | |
| c20c4267 AR |
800 | union { |
| 801 | struct pmcraid_config_table_entry cfg_entry; | |
| 802 | struct pmcraid_config_table_entry_ext cfg_entry_ext; | |
| 803 | }; | |
| 89a36810 AR |
804 | struct scsi_device *scsi_dev; /* Link scsi_device structure */ |
| 805 | atomic_t read_failures; /* count of failed READ commands */ | |
| 806 | atomic_t write_failures; /* count of failed WRITE commands */ | |
| 807 | ||
| 808 | /* To indicate add/delete/modify during CCN */ | |
| 809 | u8 change_detected; | |
| 810 | #define RES_CHANGE_ADD 0x1 /* add this to mid-layer */ | |
| 811 | #define RES_CHANGE_DEL 0x2 /* remove this from mid-layer */ | |
| 812 | ||
| 813 | u8 reset_progress; /* Device is resetting */ | |
| 814 | ||
| 815 | /* | |
| 816 | * When IOA asks for sync (i.e. IOASC = Not Ready, Sync Required), this | |
| 817 | * flag will be set, mid layer will be asked to retry. In the next | |
| 818 | * attempt, this flag will be checked in queuecommand() to set | |
| 819 | * SYNC_COMPLETE flag in IOARCB (flag_0). | |
| 820 | */ | |
| 821 | u8 sync_reqd; | |
| 822 | ||
| 823 | /* target indicates the mapped target_id assigned to this resource if | |
| 824 | * this is VSET resource. For non-VSET resources this will be un-used | |
| 825 | * or zero | |
| 826 | */ | |
| 827 | u8 target; | |
| 828 | }; | |
| 829 | ||
| 830 | /* Data structures used in IOASC error code logging */ | |
| 831 | struct pmcraid_ioasc_error { | |
| 832 | u32 ioasc_code; /* IOASC code */ | |
| 833 | u8 log_level; /* default log level assignment. */ | |
| 834 | char *error_string; | |
| 835 | }; | |
| 836 | ||
| 837 | /* Initial log_level assignments for various IOASCs */ | |
| 838 | #define IOASC_LOG_LEVEL_NONE 0x0 /* no logging */ | |
| 839 | #define IOASC_LOG_LEVEL_MUST 0x1 /* must log: all high-severity errors */ | |
| 840 | #define IOASC_LOG_LEVEL_HARD 0x2 /* optional – low severity errors */ | |
| 841 | ||
| 842 | /* Error information maintained by LLD. LLD initializes the pmcraid_error_table | |
| 843 | * statically. | |
| 844 | */ | |
| 845 | static struct pmcraid_ioasc_error pmcraid_ioasc_error_table[] = { | |
| c20c4267 | 846 | {0x01180600, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 847 | "Recovered Error, soft media error, sector reassignment suggested"}, |
| c20c4267 AR |
848 | {0x015D0000, IOASC_LOG_LEVEL_HARD, |
| 849 | "Recovered Error, failure prediction thresold exceeded"}, | |
| 850 | {0x015D9200, IOASC_LOG_LEVEL_HARD, | |
| 851 | "Recovered Error, soft Cache Card Battery error thresold"}, | |
| 852 | {0x015D9200, IOASC_LOG_LEVEL_HARD, | |
| 853 | "Recovered Error, soft Cache Card Battery error thresold"}, | |
| 854 | {0x02048000, IOASC_LOG_LEVEL_HARD, | |
| 89a36810 | 855 | "Not Ready, IOA Reset Required"}, |
| c20c4267 | 856 | {0x02408500, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 857 | "Not Ready, IOA microcode download required"}, |
| c20c4267 | 858 | {0x03110B00, IOASC_LOG_LEVEL_HARD, |
| 89a36810 AR |
859 | "Medium Error, data unreadable, reassignment suggested"}, |
| 860 | {0x03110C00, IOASC_LOG_LEVEL_MUST, | |
| 861 | "Medium Error, data unreadable do not reassign"}, | |
| c20c4267 | 862 | {0x03310000, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 863 | "Medium Error, media corrupted"}, |
| c20c4267 | 864 | {0x04050000, IOASC_LOG_LEVEL_HARD, |
| 89a36810 AR |
865 | "Hardware Error, IOA can't communicate with device"}, |
| 866 | {0x04080000, IOASC_LOG_LEVEL_MUST, | |
| 867 | "Hardware Error, device bus error"}, | |
| c20c4267 | 868 | {0x04088000, IOASC_LOG_LEVEL_MUST, |
| 89a36810 | 869 | "Hardware Error, device bus is not functioning"}, |
| c20c4267 | 870 | {0x04118000, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 871 | "Hardware Error, IOA reserved area data check"}, |
| c20c4267 | 872 | {0x04118100, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 873 | "Hardware Error, IOA reserved area invalid data pattern"}, |
| c20c4267 | 874 | {0x04118200, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 875 | "Hardware Error, IOA reserved area LRC error"}, |
| c20c4267 | 876 | {0x04320000, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 877 | "Hardware Error, reassignment space exhausted"}, |
| c20c4267 | 878 | {0x04330000, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 879 | "Hardware Error, data transfer underlength error"}, |
| c20c4267 | 880 | {0x04330000, IOASC_LOG_LEVEL_HARD, |
| 89a36810 AR |
881 | "Hardware Error, data transfer overlength error"}, |
| 882 | {0x04418000, IOASC_LOG_LEVEL_MUST, | |
| 883 | "Hardware Error, PCI bus error"}, | |
| c20c4267 | 884 | {0x04440000, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 885 | "Hardware Error, device error"}, |
| c20c4267 AR |
886 | {0x04448200, IOASC_LOG_LEVEL_MUST, |
| 887 | "Hardware Error, IOA error"}, | |
| 888 | {0x04448300, IOASC_LOG_LEVEL_HARD, | |
| 89a36810 | 889 | "Hardware Error, undefined device response"}, |
| c20c4267 | 890 | {0x04448400, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 891 | "Hardware Error, IOA microcode error"}, |
| c20c4267 | 892 | {0x04448600, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 893 | "Hardware Error, IOA reset required"}, |
| c20c4267 | 894 | {0x04449200, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 895 | "Hardware Error, hard Cache Fearuee Card Battery error"}, |
| c20c4267 | 896 | {0x0444A000, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 897 | "Hardware Error, failed device altered"}, |
| c20c4267 | 898 | {0x0444A200, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 899 | "Hardware Error, data check after reassignment"}, |
| c20c4267 | 900 | {0x0444A300, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 901 | "Hardware Error, LRC error after reassignment"}, |
| c20c4267 | 902 | {0x044A0000, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 903 | "Hardware Error, device bus error (msg/cmd phase)"}, |
| c20c4267 | 904 | {0x04670400, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 905 | "Hardware Error, new device can't be used"}, |
| c20c4267 | 906 | {0x04678000, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 907 | "Hardware Error, invalid multiadapter configuration"}, |
| c20c4267 | 908 | {0x04678100, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 909 | "Hardware Error, incorrect connection between enclosures"}, |
| c20c4267 | 910 | {0x04678200, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 911 | "Hardware Error, connections exceed IOA design limits"}, |
| c20c4267 | 912 | {0x04678300, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 913 | "Hardware Error, incorrect multipath connection"}, |
| c20c4267 | 914 | {0x04679000, IOASC_LOG_LEVEL_HARD, |
| 89a36810 AR |
915 | "Hardware Error, command to LUN failed"}, |
| 916 | {0x064C8000, IOASC_LOG_LEVEL_HARD, | |
| 917 | "Unit Attention, cache exists for missing/failed device"}, | |
| 918 | {0x06670100, IOASC_LOG_LEVEL_HARD, | |
| 919 | "Unit Attention, incompatible exposed mode device"}, | |
| 920 | {0x06670600, IOASC_LOG_LEVEL_HARD, | |
| 921 | "Unit Attention, attachment of logical unit failed"}, | |
| c20c4267 | 922 | {0x06678000, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 923 | "Unit Attention, cables exceed connective design limit"}, |
| c20c4267 | 924 | {0x06678300, IOASC_LOG_LEVEL_HARD, |
| 89a36810 AR |
925 | "Unit Attention, incomplete multipath connection between" \ |
| 926 | "IOA and enclosure"}, | |
| c20c4267 | 927 | {0x06678400, IOASC_LOG_LEVEL_HARD, |
| 89a36810 AR |
928 | "Unit Attention, incomplete multipath connection between" \ |
| 929 | "device and enclosure"}, | |
| c20c4267 | 930 | {0x06678500, IOASC_LOG_LEVEL_HARD, |
| 89a36810 AR |
931 | "Unit Attention, incomplete multipath connection between" \ |
| 932 | "IOA and remote IOA"}, | |
| 933 | {0x06678600, IOASC_LOG_LEVEL_HARD, | |
| 934 | "Unit Attention, missing remote IOA"}, | |
| 935 | {0x06679100, IOASC_LOG_LEVEL_HARD, | |
| 936 | "Unit Attention, enclosure doesn't support required multipath" \ | |
| 937 | "function"}, | |
| 938 | {0x06698200, IOASC_LOG_LEVEL_HARD, | |
| 939 | "Unit Attention, corrupt array parity detected on device"}, | |
| c20c4267 | 940 | {0x066B0200, IOASC_LOG_LEVEL_HARD, |
| 89a36810 AR |
941 | "Unit Attention, array exposed"}, |
| 942 | {0x066B8200, IOASC_LOG_LEVEL_HARD, | |
| 943 | "Unit Attention, exposed array is still protected"}, | |
| c20c4267 | 944 | {0x066B9200, IOASC_LOG_LEVEL_HARD, |
| 89a36810 AR |
945 | "Unit Attention, Multipath redundancy level got worse"}, |
| 946 | {0x07270000, IOASC_LOG_LEVEL_HARD, | |
| 947 | "Data Protect, device is read/write protected by IOA"}, | |
| 948 | {0x07278000, IOASC_LOG_LEVEL_HARD, | |
| 949 | "Data Protect, IOA doesn't support device attribute"}, | |
| 950 | {0x07278100, IOASC_LOG_LEVEL_HARD, | |
| 951 | "Data Protect, NVRAM mirroring prohibited"}, | |
| c20c4267 | 952 | {0x07278400, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 953 | "Data Protect, array is short 2 or more devices"}, |
| c20c4267 | 954 | {0x07278600, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 955 | "Data Protect, exposed array is short a required device"}, |
| c20c4267 | 956 | {0x07278700, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 957 | "Data Protect, array members not at required addresses"}, |
| c20c4267 | 958 | {0x07278800, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 959 | "Data Protect, exposed mode device resource address conflict"}, |
| c20c4267 | 960 | {0x07278900, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 961 | "Data Protect, incorrect resource address of exposed mode device"}, |
| c20c4267 | 962 | {0x07278A00, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 963 | "Data Protect, Array is missing a device and parity is out of sync"}, |
| c20c4267 | 964 | {0x07278B00, IOASC_LOG_LEVEL_HARD, |
| 89a36810 AR |
965 | "Data Protect, maximum number of arrays already exist"}, |
| 966 | {0x07278C00, IOASC_LOG_LEVEL_HARD, | |
| 967 | "Data Protect, cannot locate cache data for device"}, | |
| 968 | {0x07278D00, IOASC_LOG_LEVEL_HARD, | |
| 969 | "Data Protect, cache data exits for a changed device"}, | |
| c20c4267 | 970 | {0x07279100, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 971 | "Data Protect, detection of a device requiring format"}, |
| c20c4267 | 972 | {0x07279200, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 973 | "Data Protect, IOA exceeds maximum number of devices"}, |
| c20c4267 | 974 | {0x07279600, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 975 | "Data Protect, missing array, volume set is not functional"}, |
| c20c4267 | 976 | {0x07279700, IOASC_LOG_LEVEL_HARD, |
| 89a36810 | 977 | "Data Protect, single device for a volume set"}, |
| c20c4267 | 978 | {0x07279800, IOASC_LOG_LEVEL_HARD, |
| 89a36810 AR |
979 | "Data Protect, missing multiple devices for a volume set"}, |
| 980 | {0x07279900, IOASC_LOG_LEVEL_HARD, | |
| 981 | "Data Protect, maximum number of volument sets already exists"}, | |
| c20c4267 | 982 | {0x07279A00, IOASC_LOG_LEVEL_HARD, |
| 89a36810 AR |
983 | "Data Protect, other volume set problem"}, |
| 984 | }; | |
| 985 | ||
| 986 | /* macros to help in debugging */ | |
| 987 | #define pmcraid_err(...) \ | |
| 988 | printk(KERN_ERR "MaxRAID: "__VA_ARGS__) | |
| 989 | ||
| 990 | #define pmcraid_info(...) \ | |
| 991 | if (pmcraid_debug_log) \ | |
| 992 | printk(KERN_INFO "MaxRAID: "__VA_ARGS__) | |
| 993 | ||
| 994 | /* check if given command is a SCSI READ or SCSI WRITE command */ | |
| 995 | #define SCSI_READ_CMD 0x1 /* any of SCSI READ commands */ | |
| 996 | #define SCSI_WRITE_CMD 0x2 /* any of SCSI WRITE commands */ | |
| 997 | #define SCSI_CMD_TYPE(opcode) \ | |
| 998 | ({ u8 op = opcode; u8 __type = 0;\ | |
| 999 | if (op == READ_6 || op == READ_10 || op == READ_12 || op == READ_16)\ | |
| 1000 | __type = SCSI_READ_CMD;\ | |
| 1001 | else if (op == WRITE_6 || op == WRITE_10 || op == WRITE_12 || \ | |
| 1002 | op == WRITE_16)\ | |
| 1003 | __type = SCSI_WRITE_CMD;\ | |
| 1004 | __type;\ | |
| 1005 | }) | |
| 1006 | ||
| 1007 | #define IS_SCSI_READ_WRITE(opcode) \ | |
| 1008 | ({ u8 __type = SCSI_CMD_TYPE(opcode); \ | |
| 1009 | (__type == SCSI_READ_CMD || __type == SCSI_WRITE_CMD) ? 1 : 0;\ | |
| 1010 | }) | |
| 1011 | ||
| 1012 | ||
| 1013 | /* | |
| 1014 | * pmcraid_ioctl_header - definition of header structure that preceeds all the | |
| 3ad2f3fb | 1015 | * buffers given as ioctl arguments. |
| 89a36810 AR |
1016 | * |
| 1017 | * .signature : always ASCII string, "PMCRAID" | |
| 1018 | * .reserved : not used | |
| 1019 | * .buffer_length : length of the buffer following the header | |
| 1020 | */ | |
| 1021 | struct pmcraid_ioctl_header { | |
| 1022 | u8 signature[8]; | |
| 1023 | u32 reserved; | |
| 1024 | u32 buffer_length; | |
| 1025 | }; | |
| 1026 | ||
| 1027 | #define PMCRAID_IOCTL_SIGNATURE "PMCRAID" | |
| 1028 | ||
| 89a36810 AR |
1029 | /* |
| 1030 | * pmcraid_passthrough_ioctl_buffer - structure given as argument to | |
| 1031 | * passthrough(or firmware handled) IOCTL commands. Note that ioarcb requires | |
| 1032 | * 32-byte alignment so, it is necessary to pack this structure to avoid any | |
| 1033 | * holes between ioctl_header and passthrough buffer | |
| 1034 | * | |
| 1035 | * .ioactl_header : ioctl header | |
| 1036 | * .ioarcb : filled-up ioarcb buffer, driver always reads this buffer | |
| 1037 | * .ioasa : buffer for ioasa, driver fills this with IOASA from firmware | |
| 1038 | * .request_buffer: The I/O buffer (flat), driver reads/writes to this based on | |
| 1039 | * the transfer directions passed in ioarcb.flags0. Contents | |
| 1040 | * of this buffer are valid only when ioarcb.data_transfer_len | |
| 1041 | * is not zero. | |
| 1042 | */ | |
| 1043 | struct pmcraid_passthrough_ioctl_buffer { | |
| 1044 | struct pmcraid_ioctl_header ioctl_header; | |
| 1045 | struct pmcraid_ioarcb ioarcb; | |
| 1046 | struct pmcraid_ioasa ioasa; | |
| 1047 | u8 request_buffer[1]; | |
| 1048 | } __attribute__ ((packed)); | |
| 1049 | ||
| 1050 | /* | |
| 1051 | * keys to differentiate between driver handled IOCTLs and passthrough | |
| 1052 | * IOCTLs passed to IOA. driver determines the ioctl type using macro | |
| 1053 | * _IOC_TYPE | |
| 1054 | */ | |
| 1055 | #define PMCRAID_DRIVER_IOCTL 'D' | |
| 1056 | #define PMCRAID_PASSTHROUGH_IOCTL 'F' | |
| 1057 | ||
| 1058 | #define DRV_IOCTL(n, size) \ | |
| 1059 | _IOC(_IOC_READ|_IOC_WRITE, PMCRAID_DRIVER_IOCTL, (n), (size)) | |
| 1060 | ||
| 1061 | #define FMW_IOCTL(n, size) \ | |
| 1062 | _IOC(_IOC_READ|_IOC_WRITE, PMCRAID_PASSTHROUGH_IOCTL, (n), (size)) | |
| 1063 | ||
| 1064 | /* | |
| 1065 | * _ARGSIZE: macro that gives size of the argument type passed to an IOCTL cmd. | |
| 1066 | * This is to facilitate applications avoiding un-necessary memory allocations. | |
| 1067 | * For example, most of driver handled ioctls do not require ioarcb, ioasa. | |
| 1068 | */ | |
| 1069 | #define _ARGSIZE(arg) (sizeof(struct pmcraid_ioctl_header) + sizeof(arg)) | |
| 1070 | ||
| 1071 | /* Driver handled IOCTL command definitions */ | |
| 1072 | ||
| 1073 | #define PMCRAID_IOCTL_RESET_ADAPTER \ | |
| 1074 | DRV_IOCTL(5, sizeof(struct pmcraid_ioctl_header)) | |
| 1075 | ||
| 1076 | /* passthrough/firmware handled commands */ | |
| 1077 | #define PMCRAID_IOCTL_PASSTHROUGH_COMMAND \ | |
| 1078 | FMW_IOCTL(1, sizeof(struct pmcraid_passthrough_ioctl_buffer)) | |
| 1079 | ||
| 1080 | #define PMCRAID_IOCTL_DOWNLOAD_MICROCODE \ | |
| 1081 | FMW_IOCTL(2, sizeof(struct pmcraid_passthrough_ioctl_buffer)) | |
| 1082 | ||
| 1083 | ||
| 1084 | #endif /* _PMCRAID_H */ |