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0010 #ifndef _IBMVFC_H
0011 #define _IBMVFC_H
0012
0013 #include <linux/list.h>
0014 #include <linux/types.h>
0015 #include <scsi/viosrp.h>
0016
0017 #define IBMVFC_NAME "ibmvfc"
0018 #define IBMVFC_DRIVER_VERSION "1.0.11"
0019 #define IBMVFC_DRIVER_DATE "(April 12, 2013)"
0020
0021 #define IBMVFC_DEFAULT_TIMEOUT 60
0022 #define IBMVFC_ADISC_CANCEL_TIMEOUT 45
0023 #define IBMVFC_ADISC_TIMEOUT 15
0024 #define IBMVFC_ADISC_PLUS_CANCEL_TIMEOUT \
0025 (IBMVFC_ADISC_TIMEOUT + IBMVFC_ADISC_CANCEL_TIMEOUT)
0026 #define IBMVFC_INIT_TIMEOUT 120
0027 #define IBMVFC_ABORT_TIMEOUT 8
0028 #define IBMVFC_ABORT_WAIT_TIMEOUT 40
0029 #define IBMVFC_MAX_REQUESTS_DEFAULT 100
0030
0031 #define IBMVFC_DEBUG 0
0032 #define IBMVFC_MAX_TARGETS 1024
0033 #define IBMVFC_MAX_LUN 0xffffffff
0034 #define IBMVFC_MAX_SECTORS 0xffffu
0035 #define IBMVFC_MAX_DISC_THREADS 4
0036 #define IBMVFC_TGT_MEMPOOL_SZ 64
0037 #define IBMVFC_MAX_CMDS_PER_LUN 64
0038 #define IBMVFC_MAX_HOST_INIT_RETRIES 6
0039 #define IBMVFC_MAX_TGT_INIT_RETRIES 3
0040 #define IBMVFC_DEV_LOSS_TMO (5 * 60)
0041 #define IBMVFC_DEFAULT_LOG_LEVEL 2
0042 #define IBMVFC_MAX_CDB_LEN 16
0043 #define IBMVFC_CLS3_ERROR 0
0044 #define IBMVFC_MQ 1
0045 #define IBMVFC_SCSI_CHANNELS 8
0046 #define IBMVFC_MAX_SCSI_QUEUES 16
0047 #define IBMVFC_SCSI_HW_QUEUES 8
0048 #define IBMVFC_MIG_NO_SUB_TO_CRQ 0
0049 #define IBMVFC_MIG_NO_N_TO_M 0
0050
0051
0052
0053
0054
0055
0056
0057
0058
0059 #define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + 1 + 2 + (disc_threads * 2))
0060
0061 #define IBMVFC_MAD_SUCCESS 0x00
0062 #define IBMVFC_MAD_NOT_SUPPORTED 0xF1
0063 #define IBMVFC_MAD_VERSION_NOT_SUPP 0xF2
0064 #define IBMVFC_MAD_FAILED 0xF7
0065 #define IBMVFC_MAD_DRIVER_FAILED 0xEE
0066 #define IBMVFC_MAD_CRQ_ERROR 0xEF
0067
0068 enum ibmvfc_crq_valid {
0069 IBMVFC_CRQ_CMD_RSP = 0x80,
0070 IBMVFC_CRQ_INIT_RSP = 0xC0,
0071 IBMVFC_CRQ_XPORT_EVENT = 0xFF,
0072 };
0073
0074 enum ibmvfc_crq_init_msg {
0075 IBMVFC_CRQ_INIT = 0x01,
0076 IBMVFC_CRQ_INIT_COMPLETE = 0x02,
0077 };
0078
0079 enum ibmvfc_crq_xport_evts {
0080 IBMVFC_PARTNER_FAILED = 0x01,
0081 IBMVFC_PARTNER_DEREGISTER = 0x02,
0082 IBMVFC_PARTITION_MIGRATED = 0x06,
0083 };
0084
0085 enum ibmvfc_cmd_status_flags {
0086 IBMVFC_FABRIC_MAPPED = 0x0001,
0087 IBMVFC_VIOS_FAILURE = 0x0002,
0088 IBMVFC_FC_FAILURE = 0x0004,
0089 IBMVFC_FC_SCSI_ERROR = 0x0008,
0090 IBMVFC_HW_EVENT_LOGGED = 0x0010,
0091 IBMVFC_VIOS_LOGGED = 0x0020,
0092 };
0093
0094 enum ibmvfc_fabric_mapped_errors {
0095 IBMVFC_UNABLE_TO_ESTABLISH = 0x0001,
0096 IBMVFC_XPORT_FAULT = 0x0002,
0097 IBMVFC_CMD_TIMEOUT = 0x0003,
0098 IBMVFC_ENETDOWN = 0x0004,
0099 IBMVFC_HW_FAILURE = 0x0005,
0100 IBMVFC_LINK_DOWN_ERR = 0x0006,
0101 IBMVFC_LINK_DEAD_ERR = 0x0007,
0102 IBMVFC_UNABLE_TO_REGISTER = 0x0008,
0103 IBMVFC_XPORT_BUSY = 0x000A,
0104 IBMVFC_XPORT_DEAD = 0x000B,
0105 IBMVFC_CONFIG_ERROR = 0x000C,
0106 IBMVFC_NAME_SERVER_FAIL = 0x000D,
0107 IBMVFC_LINK_HALTED = 0x000E,
0108 IBMVFC_XPORT_GENERAL = 0x8000,
0109 };
0110
0111 enum ibmvfc_vios_errors {
0112 IBMVFC_CRQ_FAILURE = 0x0001,
0113 IBMVFC_SW_FAILURE = 0x0002,
0114 IBMVFC_INVALID_PARAMETER = 0x0003,
0115 IBMVFC_MISSING_PARAMETER = 0x0004,
0116 IBMVFC_HOST_IO_BUS = 0x0005,
0117 IBMVFC_TRANS_CANCELLED = 0x0006,
0118 IBMVFC_TRANS_CANCELLED_IMPLICIT = 0x0007,
0119 IBMVFC_INSUFFICIENT_RESOURCE = 0x0008,
0120 IBMVFC_PLOGI_REQUIRED = 0x0010,
0121 IBMVFC_COMMAND_FAILED = 0x8000,
0122 };
0123
0124 enum ibmvfc_mad_types {
0125 IBMVFC_NPIV_LOGIN = 0x0001,
0126 IBMVFC_DISC_TARGETS = 0x0002,
0127 IBMVFC_PORT_LOGIN = 0x0004,
0128 IBMVFC_PROCESS_LOGIN = 0x0008,
0129 IBMVFC_QUERY_TARGET = 0x0010,
0130 IBMVFC_MOVE_LOGIN = 0x0020,
0131 IBMVFC_IMPLICIT_LOGOUT = 0x0040,
0132 IBMVFC_PASSTHRU = 0x0200,
0133 IBMVFC_TMF_MAD = 0x0100,
0134 IBMVFC_NPIV_LOGOUT = 0x0800,
0135 IBMVFC_CHANNEL_ENQUIRY = 0x1000,
0136 IBMVFC_CHANNEL_SETUP = 0x2000,
0137 IBMVFC_CONNECTION_INFO = 0x4000,
0138 };
0139
0140 struct ibmvfc_mad_common {
0141 __be32 version;
0142 __be32 reserved;
0143 __be32 opcode;
0144 __be16 status;
0145 __be16 length;
0146 __be64 tag;
0147 } __packed __aligned(8);
0148
0149 struct ibmvfc_npiv_login_mad {
0150 struct ibmvfc_mad_common common;
0151 struct srp_direct_buf buffer;
0152 } __packed __aligned(8);
0153
0154 struct ibmvfc_npiv_logout_mad {
0155 struct ibmvfc_mad_common common;
0156 } __packed __aligned(8);
0157
0158 #define IBMVFC_MAX_NAME 256
0159
0160 struct ibmvfc_npiv_login {
0161 __be32 ostype;
0162 #define IBMVFC_OS_LINUX 0x02
0163 __be32 pad;
0164 __be64 max_dma_len;
0165 __be32 max_payload;
0166 __be32 max_response;
0167 __be32 partition_num;
0168 __be32 vfc_frame_version;
0169 __be16 fcp_version;
0170 __be16 flags;
0171 #define IBMVFC_CLIENT_MIGRATED 0x01
0172 #define IBMVFC_FLUSH_ON_HALT 0x02
0173 __be32 max_cmds;
0174 __be64 capabilities;
0175 #define IBMVFC_CAN_MIGRATE 0x01
0176 #define IBMVFC_CAN_USE_CHANNELS 0x02
0177 #define IBMVFC_CAN_HANDLE_FPIN 0x04
0178 #define IBMVFC_CAN_USE_MAD_VERSION 0x08
0179 #define IBMVFC_CAN_SEND_VF_WWPN 0x10
0180 __be64 node_name;
0181 struct srp_direct_buf async;
0182 u8 partition_name[IBMVFC_MAX_NAME];
0183 u8 device_name[IBMVFC_MAX_NAME];
0184 u8 drc_name[IBMVFC_MAX_NAME];
0185 __be64 reserved2[2];
0186 } __packed __aligned(8);
0187
0188 struct ibmvfc_common_svc_parms {
0189 __be16 fcph_version;
0190 __be16 b2b_credit;
0191 __be16 features;
0192 __be16 bb_rcv_sz;
0193 __be32 ratov;
0194 __be32 edtov;
0195 } __packed __aligned(4);
0196
0197 struct ibmvfc_service_parms {
0198 struct ibmvfc_common_svc_parms common;
0199 u8 port_name[8];
0200 u8 node_name[8];
0201 __be32 class1_parms[4];
0202 __be32 class2_parms[4];
0203 __be32 class3_parms[4];
0204 __be32 obsolete[4];
0205 __be32 vendor_version[4];
0206 __be32 services_avail[2];
0207 __be32 ext_len;
0208 __be32 reserved[30];
0209 __be32 clk_sync_qos[2];
0210 __be32 reserved2;
0211 } __packed __aligned(4);
0212
0213 struct ibmvfc_npiv_login_resp {
0214 __be32 version;
0215 __be16 status;
0216 __be16 error;
0217 __be32 flags;
0218 #define IBMVFC_NATIVE_FC 0x01
0219 __be32 reserved;
0220 __be64 capabilities;
0221 #define IBMVFC_CAN_FLUSH_ON_HALT 0x08
0222 #define IBMVFC_CAN_SUPPRESS_ABTS 0x10
0223 #define IBMVFC_MAD_VERSION_CAP 0x20
0224 #define IBMVFC_HANDLE_VF_WWPN 0x40
0225 #define IBMVFC_CAN_SUPPORT_CHANNELS 0x80
0226 __be32 max_cmds;
0227 __be32 scsi_id_sz;
0228 __be64 max_dma_len;
0229 __be64 scsi_id;
0230 __be64 port_name;
0231 __be64 node_name;
0232 __be64 link_speed;
0233 u8 partition_name[IBMVFC_MAX_NAME];
0234 u8 device_name[IBMVFC_MAX_NAME];
0235 u8 port_loc_code[IBMVFC_MAX_NAME];
0236 u8 drc_name[IBMVFC_MAX_NAME];
0237 struct ibmvfc_service_parms service_parms;
0238 __be64 reserved2;
0239 } __packed __aligned(8);
0240
0241 union ibmvfc_npiv_login_data {
0242 struct ibmvfc_npiv_login login;
0243 struct ibmvfc_npiv_login_resp resp;
0244 } __packed __aligned(8);
0245
0246 struct ibmvfc_discover_targets_entry {
0247 __be32 scsi_id;
0248 __be32 pad;
0249 __be64 wwpn;
0250 #define IBMVFC_DISC_TGT_SCSI_ID_MASK 0x00ffffff
0251 } __packed __aligned(8);
0252
0253 struct ibmvfc_discover_targets {
0254 struct ibmvfc_mad_common common;
0255 struct srp_direct_buf buffer;
0256 __be32 flags;
0257 #define IBMVFC_DISC_TGT_PORT_ID_WWPN_LIST 0x02
0258 __be16 status;
0259 __be16 error;
0260 __be32 bufflen;
0261 __be32 num_avail;
0262 __be32 num_written;
0263 __be64 reserved[2];
0264 } __packed __aligned(8);
0265
0266 enum ibmvfc_fc_reason {
0267 IBMVFC_INVALID_ELS_CMD_CODE = 0x01,
0268 IBMVFC_INVALID_VERSION = 0x02,
0269 IBMVFC_LOGICAL_ERROR = 0x03,
0270 IBMVFC_INVALID_CT_IU_SIZE = 0x04,
0271 IBMVFC_LOGICAL_BUSY = 0x05,
0272 IBMVFC_PROTOCOL_ERROR = 0x07,
0273 IBMVFC_UNABLE_TO_PERFORM_REQ = 0x09,
0274 IBMVFC_CMD_NOT_SUPPORTED = 0x0B,
0275 IBMVFC_SERVER_NOT_AVAIL = 0x0D,
0276 IBMVFC_CMD_IN_PROGRESS = 0x0E,
0277 IBMVFC_VENDOR_SPECIFIC = 0xFF,
0278 };
0279
0280 enum ibmvfc_fc_type {
0281 IBMVFC_FABRIC_REJECT = 0x01,
0282 IBMVFC_PORT_REJECT = 0x02,
0283 IBMVFC_LS_REJECT = 0x03,
0284 IBMVFC_FABRIC_BUSY = 0x04,
0285 IBMVFC_PORT_BUSY = 0x05,
0286 IBMVFC_BASIC_REJECT = 0x06,
0287 };
0288
0289 enum ibmvfc_gs_explain {
0290 IBMVFC_PORT_NAME_NOT_REG = 0x02,
0291 };
0292
0293 struct ibmvfc_port_login {
0294 struct ibmvfc_mad_common common;
0295 __be64 scsi_id;
0296 __be16 reserved;
0297 __be16 fc_service_class;
0298 __be32 blksz;
0299 __be32 hdr_per_blk;
0300 __be16 status;
0301 __be16 error;
0302 __be16 fc_explain;
0303 __be16 fc_type;
0304 __be32 reserved2;
0305 struct ibmvfc_service_parms service_parms;
0306 struct ibmvfc_service_parms service_parms_change;
0307 __be64 target_wwpn;
0308 __be64 reserved3[2];
0309 } __packed __aligned(8);
0310
0311 struct ibmvfc_move_login {
0312 struct ibmvfc_mad_common common;
0313 __be64 old_scsi_id;
0314 __be64 new_scsi_id;
0315 __be64 wwpn;
0316 __be64 node_name;
0317 __be32 flags;
0318 #define IBMVFC_MOVE_LOGIN_IMPLICIT_OLD_FAILED 0x01
0319 #define IBMVFC_MOVE_LOGIN_IMPLICIT_NEW_FAILED 0x02
0320 #define IBMVFC_MOVE_LOGIN_PORT_LOGIN_FAILED 0x04
0321 __be32 reserved;
0322 struct ibmvfc_service_parms service_parms;
0323 struct ibmvfc_service_parms service_parms_change;
0324 __be32 reserved2;
0325 __be16 service_class;
0326 __be16 vios_flags;
0327 #define IBMVFC_MOVE_LOGIN_VF_NOT_SENT_ADAPTER 0x01
0328 __be64 reserved3;
0329 } __packed __aligned(8);
0330
0331 struct ibmvfc_prli_svc_parms {
0332 u8 type;
0333 #define IBMVFC_SCSI_FCP_TYPE 0x08
0334 u8 type_ext;
0335 __be16 flags;
0336 #define IBMVFC_PRLI_ORIG_PA_VALID 0x8000
0337 #define IBMVFC_PRLI_RESP_PA_VALID 0x4000
0338 #define IBMVFC_PRLI_EST_IMG_PAIR 0x2000
0339 __be32 orig_pa;
0340 __be32 resp_pa;
0341 __be32 service_parms;
0342 #define IBMVFC_PRLI_TASK_RETRY 0x00000200
0343 #define IBMVFC_PRLI_RETRY 0x00000100
0344 #define IBMVFC_PRLI_DATA_OVERLAY 0x00000040
0345 #define IBMVFC_PRLI_INITIATOR_FUNC 0x00000020
0346 #define IBMVFC_PRLI_TARGET_FUNC 0x00000010
0347 #define IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED 0x00000002
0348 #define IBMVFC_PRLI_WR_FCP_XFER_RDY_DISABLED 0x00000001
0349 } __packed __aligned(4);
0350
0351 struct ibmvfc_process_login {
0352 struct ibmvfc_mad_common common;
0353 __be64 scsi_id;
0354 struct ibmvfc_prli_svc_parms parms;
0355 u8 reserved[48];
0356 __be16 status;
0357 __be16 error;
0358 __be32 reserved2;
0359 __be64 target_wwpn;
0360 __be64 reserved3[2];
0361 } __packed __aligned(8);
0362
0363 struct ibmvfc_query_tgt {
0364 struct ibmvfc_mad_common common;
0365 __be64 wwpn;
0366 __be64 scsi_id;
0367 __be16 status;
0368 __be16 error;
0369 __be16 fc_explain;
0370 __be16 fc_type;
0371 __be64 reserved[2];
0372 } __packed __aligned(8);
0373
0374 struct ibmvfc_implicit_logout {
0375 struct ibmvfc_mad_common common;
0376 __be64 old_scsi_id;
0377 __be64 reserved[2];
0378 } __packed __aligned(8);
0379
0380 struct ibmvfc_tmf {
0381 struct ibmvfc_mad_common common;
0382 __be64 scsi_id;
0383 struct scsi_lun lun;
0384 __be32 flags;
0385 #define IBMVFC_TMF_ABORT_TASK 0x02
0386 #define IBMVFC_TMF_ABORT_TASK_SET 0x04
0387 #define IBMVFC_TMF_LUN_RESET 0x10
0388 #define IBMVFC_TMF_TGT_RESET 0x20
0389 #define IBMVFC_TMF_LUA_VALID 0x40
0390 #define IBMVFC_TMF_SUPPRESS_ABTS 0x80
0391 __be32 cancel_key;
0392 __be32 my_cancel_key;
0393 __be32 pad;
0394 __be64 target_wwpn;
0395 __be64 task_tag;
0396 __be64 reserved[2];
0397 } __packed __aligned(8);
0398
0399 enum ibmvfc_fcp_rsp_info_codes {
0400 RSP_NO_FAILURE = 0x00,
0401 RSP_TMF_REJECTED = 0x04,
0402 RSP_TMF_FAILED = 0x05,
0403 RSP_TMF_INVALID_LUN = 0x09,
0404 };
0405
0406 struct ibmvfc_fcp_rsp_info {
0407 u8 reserved[3];
0408 u8 rsp_code;
0409 u8 reserved2[4];
0410 } __packed __aligned(2);
0411
0412 enum ibmvfc_fcp_rsp_flags {
0413 FCP_BIDI_RSP = 0x80,
0414 FCP_BIDI_READ_RESID_UNDER = 0x40,
0415 FCP_BIDI_READ_RESID_OVER = 0x20,
0416 FCP_CONF_REQ = 0x10,
0417 FCP_RESID_UNDER = 0x08,
0418 FCP_RESID_OVER = 0x04,
0419 FCP_SNS_LEN_VALID = 0x02,
0420 FCP_RSP_LEN_VALID = 0x01,
0421 };
0422
0423 union ibmvfc_fcp_rsp_data {
0424 struct ibmvfc_fcp_rsp_info info;
0425 u8 sense[SCSI_SENSE_BUFFERSIZE + sizeof(struct ibmvfc_fcp_rsp_info)];
0426 } __packed __aligned(8);
0427
0428 struct ibmvfc_fcp_rsp {
0429 __be64 reserved;
0430 __be16 retry_delay_timer;
0431 u8 flags;
0432 u8 scsi_status;
0433 __be32 fcp_resid;
0434 __be32 fcp_sense_len;
0435 __be32 fcp_rsp_len;
0436 union ibmvfc_fcp_rsp_data data;
0437 } __packed __aligned(8);
0438
0439 enum ibmvfc_cmd_flags {
0440 IBMVFC_SCATTERLIST = 0x0001,
0441 IBMVFC_NO_MEM_DESC = 0x0002,
0442 IBMVFC_READ = 0x0004,
0443 IBMVFC_WRITE = 0x0008,
0444 IBMVFC_TMF = 0x0080,
0445 IBMVFC_CLASS_3_ERR = 0x0100,
0446 };
0447
0448 enum ibmvfc_fc_task_attr {
0449 IBMVFC_SIMPLE_TASK = 0x00,
0450 IBMVFC_HEAD_OF_QUEUE = 0x01,
0451 IBMVFC_ORDERED_TASK = 0x02,
0452 IBMVFC_ACA_TASK = 0x04,
0453 };
0454
0455 enum ibmvfc_fc_tmf_flags {
0456 IBMVFC_ABORT_TASK_SET = 0x02,
0457 IBMVFC_LUN_RESET = 0x10,
0458 IBMVFC_TARGET_RESET = 0x20,
0459 };
0460
0461 struct ibmvfc_fcp_cmd_iu {
0462 struct scsi_lun lun;
0463 u8 crn;
0464 u8 pri_task_attr;
0465 u8 tmf_flags;
0466 u8 add_cdb_len;
0467 #define IBMVFC_RDDATA 0x02
0468 #define IBMVFC_WRDATA 0x01
0469 u8 cdb[IBMVFC_MAX_CDB_LEN];
0470 __be32 xfer_len;
0471 } __packed __aligned(4);
0472
0473 struct ibmvfc_cmd {
0474 __be64 task_tag;
0475 __be32 frame_type;
0476 __be32 payload_len;
0477 __be32 resp_len;
0478 __be32 adapter_resid;
0479 __be16 status;
0480 __be16 error;
0481 __be16 flags;
0482 __be16 response_flags;
0483 #define IBMVFC_ADAPTER_RESID_VALID 0x01
0484 __be32 cancel_key;
0485 __be32 exchange_id;
0486 struct srp_direct_buf ext_func;
0487 struct srp_direct_buf ioba;
0488 struct srp_direct_buf resp;
0489 __be64 correlation;
0490 __be64 tgt_scsi_id;
0491 __be64 tag;
0492 __be64 target_wwpn;
0493 __be64 reserved3;
0494 union {
0495 struct {
0496 struct ibmvfc_fcp_cmd_iu iu;
0497 struct ibmvfc_fcp_rsp rsp;
0498 } v1;
0499 struct {
0500 __be64 reserved4;
0501 struct ibmvfc_fcp_cmd_iu iu;
0502 struct ibmvfc_fcp_rsp rsp;
0503 } v2;
0504 };
0505 } __packed __aligned(8);
0506
0507 struct ibmvfc_passthru_fc_iu {
0508 __be32 payload[7];
0509 #define IBMVFC_ADISC 0x52000000
0510 __be32 response[7];
0511 };
0512
0513 struct ibmvfc_passthru_iu {
0514 __be64 task_tag;
0515 __be32 cmd_len;
0516 __be32 rsp_len;
0517 __be16 status;
0518 __be16 error;
0519 __be32 flags;
0520 #define IBMVFC_FC_ELS 0x01
0521 #define IBMVFC_FC_CT_IU 0x02
0522 __be32 cancel_key;
0523 #define IBMVFC_PASSTHRU_CANCEL_KEY 0x80000000
0524 #define IBMVFC_INTERNAL_CANCEL_KEY 0x80000001
0525 __be32 reserved;
0526 struct srp_direct_buf cmd;
0527 struct srp_direct_buf rsp;
0528 __be64 correlation;
0529 __be64 scsi_id;
0530 __be64 tag;
0531 __be64 target_wwpn;
0532 __be64 reserved2[2];
0533 } __packed __aligned(8);
0534
0535 struct ibmvfc_passthru_mad {
0536 struct ibmvfc_mad_common common;
0537 struct srp_direct_buf cmd_ioba;
0538 struct ibmvfc_passthru_iu iu;
0539 struct ibmvfc_passthru_fc_iu fc_iu;
0540 } __packed __aligned(8);
0541
0542 struct ibmvfc_channel_enquiry {
0543 struct ibmvfc_mad_common common;
0544 __be32 flags;
0545 #define IBMVFC_NO_CHANNELS_TO_CRQ_SUPPORT 0x01
0546 #define IBMVFC_SUPPORT_VARIABLE_SUBQ_MSG 0x02
0547 #define IBMVFC_NO_N_TO_M_CHANNELS_SUPPORT 0x04
0548 __be32 num_scsi_subq_channels;
0549 __be32 num_nvmeof_subq_channels;
0550 __be32 num_scsi_vas_channels;
0551 __be32 num_nvmeof_vas_channels;
0552 } __packed __aligned(8);
0553
0554 struct ibmvfc_channel_setup_mad {
0555 struct ibmvfc_mad_common common;
0556 struct srp_direct_buf buffer;
0557 } __packed __aligned(8);
0558
0559 #define IBMVFC_MAX_CHANNELS 502
0560
0561 struct ibmvfc_channel_setup {
0562 __be32 flags;
0563 #define IBMVFC_CANCEL_CHANNELS 0x01
0564 #define IBMVFC_USE_BUFFER 0x02
0565 #define IBMVFC_CHANNELS_CANCELED 0x04
0566 __be32 reserved;
0567 __be32 num_scsi_subq_channels;
0568 __be32 num_nvmeof_subq_channels;
0569 __be32 num_scsi_vas_channels;
0570 __be32 num_nvmeof_vas_channels;
0571 struct srp_direct_buf buffer;
0572 __be64 reserved2[5];
0573 __be64 channel_handles[IBMVFC_MAX_CHANNELS];
0574 } __packed __aligned(8);
0575
0576 struct ibmvfc_connection_info {
0577 struct ibmvfc_mad_common common;
0578 __be64 information_bits;
0579 #define IBMVFC_NO_FC_IO_CHANNEL 0x01
0580 #define IBMVFC_NO_PHYP_VAS 0x02
0581 #define IBMVFC_NO_PHYP_SUBQ 0x04
0582 #define IBMVFC_PHYP_DEPRECATED_SUBQ 0x08
0583 #define IBMVFC_PHYP_PRESERVED_SUBQ 0x10
0584 #define IBMVFC_PHYP_FULL_SUBQ 0x20
0585 __be64 reserved[16];
0586 } __packed __aligned(8);
0587
0588 struct ibmvfc_trace_start_entry {
0589 u32 xfer_len;
0590 } __packed;
0591
0592 struct ibmvfc_trace_end_entry {
0593 u16 status;
0594 u16 error;
0595 u8 fcp_rsp_flags;
0596 u8 rsp_code;
0597 u8 scsi_status;
0598 u8 reserved;
0599 } __packed;
0600
0601 struct ibmvfc_trace_entry {
0602 struct ibmvfc_event *evt;
0603 u32 time;
0604 u32 scsi_id;
0605 u32 lun;
0606 u8 fmt;
0607 u8 op_code;
0608 u8 tmf_flags;
0609 u8 type;
0610 #define IBMVFC_TRC_START 0x00
0611 #define IBMVFC_TRC_END 0xff
0612 union {
0613 struct ibmvfc_trace_start_entry start;
0614 struct ibmvfc_trace_end_entry end;
0615 } u;
0616 } __packed __aligned(8);
0617
0618 enum ibmvfc_crq_formats {
0619 IBMVFC_CMD_FORMAT = 0x01,
0620 IBMVFC_ASYNC_EVENT = 0x02,
0621 IBMVFC_MAD_FORMAT = 0x04,
0622 };
0623
0624 enum ibmvfc_async_event {
0625 IBMVFC_AE_ELS_PLOGI = 0x0001,
0626 IBMVFC_AE_ELS_LOGO = 0x0002,
0627 IBMVFC_AE_ELS_PRLO = 0x0004,
0628 IBMVFC_AE_SCN_NPORT = 0x0008,
0629 IBMVFC_AE_SCN_GROUP = 0x0010,
0630 IBMVFC_AE_SCN_DOMAIN = 0x0020,
0631 IBMVFC_AE_SCN_FABRIC = 0x0040,
0632 IBMVFC_AE_LINK_UP = 0x0080,
0633 IBMVFC_AE_LINK_DOWN = 0x0100,
0634 IBMVFC_AE_LINK_DEAD = 0x0200,
0635 IBMVFC_AE_HALT = 0x0400,
0636 IBMVFC_AE_RESUME = 0x0800,
0637 IBMVFC_AE_ADAPTER_FAILED = 0x1000,
0638 IBMVFC_AE_FPIN = 0x2000,
0639 };
0640
0641 struct ibmvfc_async_desc {
0642 const char *desc;
0643 enum ibmvfc_async_event ae;
0644 int log_level;
0645 };
0646
0647 struct ibmvfc_crq {
0648 volatile u8 valid;
0649 volatile u8 format;
0650 u8 reserved[6];
0651 volatile __be64 ioba;
0652 } __packed __aligned(8);
0653
0654 struct ibmvfc_sub_crq {
0655 struct ibmvfc_crq crq;
0656 __be64 reserved[2];
0657 } __packed __aligned(8);
0658
0659 enum ibmvfc_ae_link_state {
0660 IBMVFC_AE_LS_LINK_UP = 0x01,
0661 IBMVFC_AE_LS_LINK_BOUNCED = 0x02,
0662 IBMVFC_AE_LS_LINK_DOWN = 0x04,
0663 IBMVFC_AE_LS_LINK_DEAD = 0x08,
0664 };
0665
0666 enum ibmvfc_ae_fpin_status {
0667 IBMVFC_AE_FPIN_LINK_CONGESTED = 0x1,
0668 IBMVFC_AE_FPIN_PORT_CONGESTED = 0x2,
0669 IBMVFC_AE_FPIN_PORT_CLEARED = 0x3,
0670 IBMVFC_AE_FPIN_PORT_DEGRADED = 0x4,
0671 };
0672
0673 struct ibmvfc_async_crq {
0674 volatile u8 valid;
0675 u8 link_state;
0676 u8 fpin_status;
0677 u8 pad;
0678 __be32 pad2;
0679 volatile __be64 event;
0680 volatile __be64 scsi_id;
0681 volatile __be64 wwpn;
0682 volatile __be64 node_name;
0683 __be64 reserved;
0684 } __packed __aligned(8);
0685
0686 union ibmvfc_iu {
0687 struct ibmvfc_mad_common mad_common;
0688 struct ibmvfc_npiv_login_mad npiv_login;
0689 struct ibmvfc_npiv_logout_mad npiv_logout;
0690 struct ibmvfc_discover_targets discover_targets;
0691 struct ibmvfc_port_login plogi;
0692 struct ibmvfc_process_login prli;
0693 struct ibmvfc_move_login move_login;
0694 struct ibmvfc_query_tgt query_tgt;
0695 struct ibmvfc_implicit_logout implicit_logout;
0696 struct ibmvfc_tmf tmf;
0697 struct ibmvfc_cmd cmd;
0698 struct ibmvfc_passthru_mad passthru;
0699 struct ibmvfc_channel_enquiry channel_enquiry;
0700 struct ibmvfc_channel_setup_mad channel_setup;
0701 struct ibmvfc_connection_info connection_info;
0702 } __packed __aligned(8);
0703
0704 enum ibmvfc_target_action {
0705 IBMVFC_TGT_ACTION_NONE = 0,
0706 IBMVFC_TGT_ACTION_INIT,
0707 IBMVFC_TGT_ACTION_INIT_WAIT,
0708 IBMVFC_TGT_ACTION_LOGOUT_RPORT,
0709 IBMVFC_TGT_ACTION_LOGOUT_RPORT_WAIT,
0710 IBMVFC_TGT_ACTION_DEL_RPORT,
0711 IBMVFC_TGT_ACTION_DELETED_RPORT,
0712 IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT,
0713 IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT,
0714 };
0715
0716 struct ibmvfc_target {
0717 struct list_head queue;
0718 struct ibmvfc_host *vhost;
0719 u64 scsi_id;
0720 u64 wwpn;
0721 u64 new_scsi_id;
0722 struct fc_rport *rport;
0723 int target_id;
0724 enum ibmvfc_target_action action;
0725 int need_login;
0726 int add_rport;
0727 int init_retries;
0728 int logo_rcvd;
0729 int move_login;
0730 u32 cancel_key;
0731 struct ibmvfc_service_parms service_parms;
0732 struct ibmvfc_service_parms service_parms_change;
0733 struct fc_rport_identifiers ids;
0734 void (*job_step) (struct ibmvfc_target *);
0735 struct timer_list timer;
0736 struct kref kref;
0737 };
0738
0739
0740 struct ibmvfc_event {
0741 struct list_head queue_list;
0742 struct list_head cancel;
0743 struct ibmvfc_host *vhost;
0744 struct ibmvfc_queue *queue;
0745 struct ibmvfc_target *tgt;
0746 struct scsi_cmnd *cmnd;
0747 atomic_t free;
0748 atomic_t active;
0749 union ibmvfc_iu *xfer_iu;
0750 void (*done)(struct ibmvfc_event *evt);
0751 void (*_done)(struct ibmvfc_event *evt);
0752 struct ibmvfc_crq crq;
0753 union ibmvfc_iu iu;
0754 union ibmvfc_iu *sync_iu;
0755 struct srp_direct_buf *ext_list;
0756 dma_addr_t ext_list_token;
0757 struct completion comp;
0758 struct completion *eh_comp;
0759 struct timer_list timer;
0760 u16 hwq;
0761 };
0762
0763
0764 struct ibmvfc_event_pool {
0765 struct ibmvfc_event *events;
0766 u32 size;
0767 union ibmvfc_iu *iu_storage;
0768 dma_addr_t iu_token;
0769 };
0770
0771 enum ibmvfc_msg_fmt {
0772 IBMVFC_CRQ_FMT = 0,
0773 IBMVFC_ASYNC_FMT,
0774 IBMVFC_SUB_CRQ_FMT,
0775 };
0776
0777 union ibmvfc_msgs {
0778 void *handle;
0779 struct ibmvfc_crq *crq;
0780 struct ibmvfc_async_crq *async;
0781 struct ibmvfc_sub_crq *scrq;
0782 };
0783
0784 struct ibmvfc_queue {
0785 union ibmvfc_msgs msgs;
0786 dma_addr_t msg_token;
0787 enum ibmvfc_msg_fmt fmt;
0788 int size, cur;
0789 spinlock_t _lock;
0790 spinlock_t *q_lock;
0791
0792 struct ibmvfc_host *vhost;
0793 struct ibmvfc_event_pool evt_pool;
0794 struct list_head sent;
0795 struct list_head free;
0796 spinlock_t l_lock;
0797
0798 union ibmvfc_iu cancel_rsp;
0799
0800
0801 unsigned long cookie;
0802 unsigned long vios_cookie;
0803 unsigned long hw_irq;
0804 unsigned long irq;
0805 unsigned long hwq_id;
0806 char name[32];
0807 };
0808
0809 struct ibmvfc_scsi_channels {
0810 struct ibmvfc_queue *scrqs;
0811 unsigned int active_queues;
0812 };
0813
0814 enum ibmvfc_host_action {
0815 IBMVFC_HOST_ACTION_NONE = 0,
0816 IBMVFC_HOST_ACTION_RESET,
0817 IBMVFC_HOST_ACTION_REENABLE,
0818 IBMVFC_HOST_ACTION_LOGO,
0819 IBMVFC_HOST_ACTION_LOGO_WAIT,
0820 IBMVFC_HOST_ACTION_INIT,
0821 IBMVFC_HOST_ACTION_INIT_WAIT,
0822 IBMVFC_HOST_ACTION_QUERY,
0823 IBMVFC_HOST_ACTION_QUERY_TGTS,
0824 IBMVFC_HOST_ACTION_TGT_DEL,
0825 IBMVFC_HOST_ACTION_ALLOC_TGTS,
0826 IBMVFC_HOST_ACTION_TGT_INIT,
0827 IBMVFC_HOST_ACTION_TGT_DEL_FAILED,
0828 };
0829
0830 enum ibmvfc_host_state {
0831 IBMVFC_NO_CRQ = 0,
0832 IBMVFC_INITIALIZING,
0833 IBMVFC_ACTIVE,
0834 IBMVFC_HALTED,
0835 IBMVFC_LINK_DOWN,
0836 IBMVFC_LINK_DEAD,
0837 IBMVFC_HOST_OFFLINE,
0838 };
0839
0840 struct ibmvfc_host {
0841 char name[8];
0842 struct list_head queue;
0843 struct Scsi_Host *host;
0844 enum ibmvfc_host_state state;
0845 enum ibmvfc_host_action action;
0846 #define IBMVFC_NUM_TRACE_INDEX_BITS 8
0847 #define IBMVFC_NUM_TRACE_ENTRIES (1 << IBMVFC_NUM_TRACE_INDEX_BITS)
0848 #define IBMVFC_TRACE_INDEX_MASK (IBMVFC_NUM_TRACE_ENTRIES - 1)
0849 #define IBMVFC_TRACE_SIZE (sizeof(struct ibmvfc_trace_entry) * IBMVFC_NUM_TRACE_ENTRIES)
0850 struct ibmvfc_trace_entry *trace;
0851 atomic_t trace_index;
0852 int num_targets;
0853 struct list_head targets;
0854 struct list_head purge;
0855 struct device *dev;
0856 struct dma_pool *sg_pool;
0857 mempool_t *tgt_pool;
0858 struct ibmvfc_queue crq;
0859 struct ibmvfc_queue async_crq;
0860 struct ibmvfc_scsi_channels scsi_scrqs;
0861 struct ibmvfc_npiv_login login_info;
0862 union ibmvfc_npiv_login_data *login_buf;
0863 dma_addr_t login_buf_dma;
0864 struct ibmvfc_channel_setup *channel_setup_buf;
0865 dma_addr_t channel_setup_dma;
0866 int disc_buf_sz;
0867 int log_level;
0868 struct ibmvfc_discover_targets_entry *disc_buf;
0869 struct mutex passthru_mutex;
0870 int max_vios_scsi_channels;
0871 int task_set;
0872 int init_retries;
0873 int discovery_threads;
0874 int abort_threads;
0875 int client_migrated;
0876 int reinit;
0877 int delay_init;
0878 int scan_complete;
0879 int scan_timeout;
0880 int logged_in;
0881 int mq_enabled;
0882 int using_channels;
0883 int do_enquiry;
0884 int client_scsi_channels;
0885 int aborting_passthru;
0886 int events_to_log;
0887 #define IBMVFC_AE_LINKUP 0x0001
0888 #define IBMVFC_AE_LINKDOWN 0x0002
0889 #define IBMVFC_AE_RSCN 0x0004
0890 dma_addr_t disc_buf_dma;
0891 unsigned int partition_number;
0892 char partition_name[97];
0893 void (*job_step) (struct ibmvfc_host *);
0894 struct task_struct *work_thread;
0895 struct tasklet_struct tasklet;
0896 struct work_struct rport_add_work_q;
0897 wait_queue_head_t init_wait_q;
0898 wait_queue_head_t work_wait_q;
0899 };
0900
0901 #define DBG_CMD(CMD) do { if (ibmvfc_debug) CMD; } while (0)
0902
0903 #define tgt_dbg(t, fmt, ...) \
0904 DBG_CMD(dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__))
0905
0906 #define tgt_info(t, fmt, ...) \
0907 dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)
0908
0909 #define tgt_err(t, fmt, ...) \
0910 dev_err((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)
0911
0912 #define tgt_log(t, level, fmt, ...) \
0913 do { \
0914 if ((t)->vhost->log_level >= level) \
0915 tgt_err(t, fmt, ##__VA_ARGS__); \
0916 } while (0)
0917
0918 #define ibmvfc_dbg(vhost, ...) \
0919 DBG_CMD(dev_info((vhost)->dev, ##__VA_ARGS__))
0920
0921 #define ibmvfc_log(vhost, level, ...) \
0922 do { \
0923 if ((vhost)->log_level >= level) \
0924 dev_err((vhost)->dev, ##__VA_ARGS__); \
0925 } while (0)
0926
0927 #define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __func__))
0928 #define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __func__))
0929
0930 #ifdef CONFIG_SCSI_IBMVFC_TRACE
0931 #define ibmvfc_create_trace_file(kobj, attr) sysfs_create_bin_file(kobj, attr)
0932 #define ibmvfc_remove_trace_file(kobj, attr) sysfs_remove_bin_file(kobj, attr)
0933 #else
0934 #define ibmvfc_create_trace_file(kobj, attr) 0
0935 #define ibmvfc_remove_trace_file(kobj, attr) do { } while (0)
0936 #endif
0937
0938 #endif
