| /* |
| * ibmvfc.h -- driver for IBM Power Virtual Fibre Channel Adapter |
| * |
| * Written By: Brian King <brking@linux.vnet.ibm.com>, IBM Corporation |
| * |
| * Copyright (C) IBM Corporation, 2008 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #ifndef _IBMVFC_H |
| #define _IBMVFC_H |
| |
| #include <linux/list.h> |
| #include <linux/types.h> |
| #include "viosrp.h" |
| |
| #define IBMVFC_NAME "ibmvfc" |
| #define IBMVFC_DRIVER_VERSION "1.0.4" |
| #define IBMVFC_DRIVER_DATE "(November 14, 2008)" |
| |
| #define IBMVFC_DEFAULT_TIMEOUT 60 |
| #define IBMVFC_INIT_TIMEOUT 120 |
| #define IBMVFC_MAX_REQUESTS_DEFAULT 100 |
| |
| #define IBMVFC_DEBUG 0 |
| #define IBMVFC_MAX_TARGETS 1024 |
| #define IBMVFC_MAX_LUN 0xffffffff |
| #define IBMVFC_MAX_SECTORS 0xffffu |
| #define IBMVFC_MAX_DISC_THREADS 4 |
| #define IBMVFC_TGT_MEMPOOL_SZ 64 |
| #define IBMVFC_MAX_CMDS_PER_LUN 64 |
| #define IBMVFC_MAX_HOST_INIT_RETRIES 6 |
| #define IBMVFC_MAX_TGT_INIT_RETRIES 3 |
| #define IBMVFC_DEV_LOSS_TMO (5 * 60) |
| #define IBMVFC_DEFAULT_LOG_LEVEL 2 |
| #define IBMVFC_MAX_CDB_LEN 16 |
| |
| /* |
| * Ensure we have resources for ERP and initialization: |
| * 1 for ERP |
| * 1 for initialization |
| * 1 for each discovery thread |
| */ |
| #define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + disc_threads) |
| |
| #define IBMVFC_MAD_SUCCESS 0x00 |
| #define IBMVFC_MAD_NOT_SUPPORTED 0xF1 |
| #define IBMVFC_MAD_FAILED 0xF7 |
| #define IBMVFC_MAD_DRIVER_FAILED 0xEE |
| #define IBMVFC_MAD_CRQ_ERROR 0xEF |
| |
| enum ibmvfc_crq_valid { |
| IBMVFC_CRQ_CMD_RSP = 0x80, |
| IBMVFC_CRQ_INIT_RSP = 0xC0, |
| IBMVFC_CRQ_XPORT_EVENT = 0xFF, |
| }; |
| |
| enum ibmvfc_crq_format { |
| IBMVFC_CRQ_INIT = 0x01, |
| IBMVFC_CRQ_INIT_COMPLETE = 0x02, |
| IBMVFC_PARTITION_MIGRATED = 0x06, |
| }; |
| |
| enum ibmvfc_cmd_status_flags { |
| IBMVFC_FABRIC_MAPPED = 0x0001, |
| IBMVFC_VIOS_FAILURE = 0x0002, |
| IBMVFC_FC_FAILURE = 0x0004, |
| IBMVFC_FC_SCSI_ERROR = 0x0008, |
| IBMVFC_HW_EVENT_LOGGED = 0x0010, |
| IBMVFC_VIOS_LOGGED = 0x0020, |
| }; |
| |
| enum ibmvfc_fabric_mapped_errors { |
| IBMVFC_UNABLE_TO_ESTABLISH = 0x0001, |
| IBMVFC_XPORT_FAULT = 0x0002, |
| IBMVFC_CMD_TIMEOUT = 0x0003, |
| IBMVFC_ENETDOWN = 0x0004, |
| IBMVFC_HW_FAILURE = 0x0005, |
| IBMVFC_LINK_DOWN_ERR = 0x0006, |
| IBMVFC_LINK_DEAD_ERR = 0x0007, |
| IBMVFC_UNABLE_TO_REGISTER = 0x0008, |
| IBMVFC_XPORT_BUSY = 0x000A, |
| IBMVFC_XPORT_DEAD = 0x000B, |
| IBMVFC_CONFIG_ERROR = 0x000C, |
| IBMVFC_NAME_SERVER_FAIL = 0x000D, |
| IBMVFC_LINK_HALTED = 0x000E, |
| IBMVFC_XPORT_GENERAL = 0x8000, |
| }; |
| |
| enum ibmvfc_vios_errors { |
| IBMVFC_CRQ_FAILURE = 0x0001, |
| IBMVFC_SW_FAILURE = 0x0002, |
| IBMVFC_INVALID_PARAMETER = 0x0003, |
| IBMVFC_MISSING_PARAMETER = 0x0004, |
| IBMVFC_HOST_IO_BUS = 0x0005, |
| IBMVFC_TRANS_CANCELLED = 0x0006, |
| IBMVFC_TRANS_CANCELLED_IMPLICIT = 0x0007, |
| IBMVFC_INSUFFICIENT_RESOURCE = 0x0008, |
| IBMVFC_PLOGI_REQUIRED = 0x0010, |
| IBMVFC_COMMAND_FAILED = 0x8000, |
| }; |
| |
| enum ibmvfc_mad_types { |
| IBMVFC_NPIV_LOGIN = 0x0001, |
| IBMVFC_DISC_TARGETS = 0x0002, |
| IBMVFC_PORT_LOGIN = 0x0004, |
| IBMVFC_PROCESS_LOGIN = 0x0008, |
| IBMVFC_QUERY_TARGET = 0x0010, |
| IBMVFC_IMPLICIT_LOGOUT = 0x0040, |
| IBMVFC_PASSTHRU = 0x0200, |
| IBMVFC_TMF_MAD = 0x0100, |
| }; |
| |
| struct ibmvfc_mad_common { |
| u32 version; |
| u32 reserved; |
| u32 opcode; |
| u16 status; |
| u16 length; |
| u64 tag; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_npiv_login_mad { |
| struct ibmvfc_mad_common common; |
| struct srp_direct_buf buffer; |
| }__attribute__((packed, aligned (8))); |
| |
| #define IBMVFC_MAX_NAME 256 |
| |
| struct ibmvfc_npiv_login { |
| u32 ostype; |
| #define IBMVFC_OS_LINUX 0x02 |
| u32 pad; |
| u64 max_dma_len; |
| u32 max_payload; |
| u32 max_response; |
| u32 partition_num; |
| u32 vfc_frame_version; |
| u16 fcp_version; |
| u16 flags; |
| #define IBMVFC_CLIENT_MIGRATED 0x01 |
| #define IBMVFC_FLUSH_ON_HALT 0x02 |
| u32 max_cmds; |
| u64 capabilities; |
| #define IBMVFC_CAN_MIGRATE 0x01 |
| u64 node_name; |
| struct srp_direct_buf async; |
| u8 partition_name[IBMVFC_MAX_NAME]; |
| u8 device_name[IBMVFC_MAX_NAME]; |
| u8 drc_name[IBMVFC_MAX_NAME]; |
| u64 reserved2[2]; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_common_svc_parms { |
| u16 fcph_version; |
| u16 b2b_credit; |
| u16 features; |
| u16 bb_rcv_sz; /* upper nibble is BB_SC_N */ |
| u32 ratov; |
| u32 edtov; |
| }__attribute__((packed, aligned (4))); |
| |
| struct ibmvfc_service_parms { |
| struct ibmvfc_common_svc_parms common; |
| u8 port_name[8]; |
| u8 node_name[8]; |
| u32 class1_parms[4]; |
| u32 class2_parms[4]; |
| u32 class3_parms[4]; |
| u32 obsolete[4]; |
| u32 vendor_version[4]; |
| u32 services_avail[2]; |
| u32 ext_len; |
| u32 reserved[30]; |
| u32 clk_sync_qos[2]; |
| }__attribute__((packed, aligned (4))); |
| |
| struct ibmvfc_npiv_login_resp { |
| u32 version; |
| u16 status; |
| u16 error; |
| u32 flags; |
| #define IBMVFC_NATIVE_FC 0x01 |
| #define IBMVFC_CAN_FLUSH_ON_HALT 0x08 |
| u32 reserved; |
| u64 capabilites; |
| u32 max_cmds; |
| u32 scsi_id_sz; |
| u64 max_dma_len; |
| u64 scsi_id; |
| u64 port_name; |
| u64 node_name; |
| u64 link_speed; |
| u8 partition_name[IBMVFC_MAX_NAME]; |
| u8 device_name[IBMVFC_MAX_NAME]; |
| u8 port_loc_code[IBMVFC_MAX_NAME]; |
| u8 drc_name[IBMVFC_MAX_NAME]; |
| struct ibmvfc_service_parms service_parms; |
| u64 reserved2; |
| }__attribute__((packed, aligned (8))); |
| |
| union ibmvfc_npiv_login_data { |
| struct ibmvfc_npiv_login login; |
| struct ibmvfc_npiv_login_resp resp; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_discover_targets_buf { |
| u32 scsi_id[1]; |
| #define IBMVFC_DISC_TGT_SCSI_ID_MASK 0x00ffffff |
| }; |
| |
| struct ibmvfc_discover_targets { |
| struct ibmvfc_mad_common common; |
| struct srp_direct_buf buffer; |
| u32 flags; |
| u16 status; |
| u16 error; |
| u32 bufflen; |
| u32 num_avail; |
| u32 num_written; |
| u64 reserved[2]; |
| }__attribute__((packed, aligned (8))); |
| |
| enum ibmvfc_fc_reason { |
| IBMVFC_INVALID_ELS_CMD_CODE = 0x01, |
| IBMVFC_INVALID_VERSION = 0x02, |
| IBMVFC_LOGICAL_ERROR = 0x03, |
| IBMVFC_INVALID_CT_IU_SIZE = 0x04, |
| IBMVFC_LOGICAL_BUSY = 0x05, |
| IBMVFC_PROTOCOL_ERROR = 0x07, |
| IBMVFC_UNABLE_TO_PERFORM_REQ = 0x09, |
| IBMVFC_CMD_NOT_SUPPORTED = 0x0B, |
| IBMVFC_SERVER_NOT_AVAIL = 0x0D, |
| IBMVFC_CMD_IN_PROGRESS = 0x0E, |
| IBMVFC_VENDOR_SPECIFIC = 0xFF, |
| }; |
| |
| enum ibmvfc_fc_type { |
| IBMVFC_FABRIC_REJECT = 0x01, |
| IBMVFC_PORT_REJECT = 0x02, |
| IBMVFC_LS_REJECT = 0x03, |
| IBMVFC_FABRIC_BUSY = 0x04, |
| IBMVFC_PORT_BUSY = 0x05, |
| IBMVFC_BASIC_REJECT = 0x06, |
| }; |
| |
| enum ibmvfc_gs_explain { |
| IBMVFC_PORT_NAME_NOT_REG = 0x02, |
| }; |
| |
| struct ibmvfc_port_login { |
| struct ibmvfc_mad_common common; |
| u64 scsi_id; |
| u16 reserved; |
| u16 fc_service_class; |
| u32 blksz; |
| u32 hdr_per_blk; |
| u16 status; |
| u16 error; /* also fc_reason */ |
| u16 fc_explain; |
| u16 fc_type; |
| u32 reserved2; |
| struct ibmvfc_service_parms service_parms; |
| struct ibmvfc_service_parms service_parms_change; |
| u64 reserved3[2]; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_prli_svc_parms { |
| u8 type; |
| #define IBMVFC_SCSI_FCP_TYPE 0x08 |
| u8 type_ext; |
| u16 flags; |
| #define IBMVFC_PRLI_ORIG_PA_VALID 0x8000 |
| #define IBMVFC_PRLI_RESP_PA_VALID 0x4000 |
| #define IBMVFC_PRLI_EST_IMG_PAIR 0x2000 |
| u32 orig_pa; |
| u32 resp_pa; |
| u32 service_parms; |
| #define IBMVFC_PRLI_TASK_RETRY 0x00000200 |
| #define IBMVFC_PRLI_RETRY 0x00000100 |
| #define IBMVFC_PRLI_DATA_OVERLAY 0x00000040 |
| #define IBMVFC_PRLI_INITIATOR_FUNC 0x00000020 |
| #define IBMVFC_PRLI_TARGET_FUNC 0x00000010 |
| #define IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED 0x00000002 |
| #define IBMVFC_PRLI_WR_FCP_XFER_RDY_DISABLED 0x00000001 |
| }__attribute__((packed, aligned (4))); |
| |
| struct ibmvfc_process_login { |
| struct ibmvfc_mad_common common; |
| u64 scsi_id; |
| struct ibmvfc_prli_svc_parms parms; |
| u8 reserved[48]; |
| u16 status; |
| u16 error; /* also fc_reason */ |
| u32 reserved2; |
| u64 reserved3[2]; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_query_tgt { |
| struct ibmvfc_mad_common common; |
| u64 wwpn; |
| u64 scsi_id; |
| u16 status; |
| u16 error; |
| u16 fc_explain; |
| u16 fc_type; |
| u64 reserved[2]; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_implicit_logout { |
| struct ibmvfc_mad_common common; |
| u64 old_scsi_id; |
| u64 reserved[2]; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_tmf { |
| struct ibmvfc_mad_common common; |
| u64 scsi_id; |
| struct scsi_lun lun; |
| u32 flags; |
| #define IBMVFC_TMF_ABORT_TASK 0x02 |
| #define IBMVFC_TMF_ABORT_TASK_SET 0x04 |
| #define IBMVFC_TMF_LUN_RESET 0x10 |
| #define IBMVFC_TMF_TGT_RESET 0x20 |
| #define IBMVFC_TMF_LUA_VALID 0x40 |
| u32 cancel_key; |
| u32 my_cancel_key; |
| u32 pad; |
| u64 reserved[2]; |
| }__attribute__((packed, aligned (8))); |
| |
| enum ibmvfc_fcp_rsp_info_codes { |
| RSP_NO_FAILURE = 0x00, |
| RSP_TMF_REJECTED = 0x04, |
| RSP_TMF_FAILED = 0x05, |
| RSP_TMF_INVALID_LUN = 0x09, |
| }; |
| |
| struct ibmvfc_fcp_rsp_info { |
| u16 reserved; |
| u8 rsp_code; |
| u8 reserved2[4]; |
| }__attribute__((packed, aligned (2))); |
| |
| enum ibmvfc_fcp_rsp_flags { |
| FCP_BIDI_RSP = 0x80, |
| FCP_BIDI_READ_RESID_UNDER = 0x40, |
| FCP_BIDI_READ_RESID_OVER = 0x20, |
| FCP_CONF_REQ = 0x10, |
| FCP_RESID_UNDER = 0x08, |
| FCP_RESID_OVER = 0x04, |
| FCP_SNS_LEN_VALID = 0x02, |
| FCP_RSP_LEN_VALID = 0x01, |
| }; |
| |
| union ibmvfc_fcp_rsp_data { |
| struct ibmvfc_fcp_rsp_info info; |
| u8 sense[SCSI_SENSE_BUFFERSIZE + sizeof(struct ibmvfc_fcp_rsp_info)]; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_fcp_rsp { |
| u64 reserved; |
| u16 retry_delay_timer; |
| u8 flags; |
| u8 scsi_status; |
| u32 fcp_resid; |
| u32 fcp_sense_len; |
| u32 fcp_rsp_len; |
| union ibmvfc_fcp_rsp_data data; |
| }__attribute__((packed, aligned (8))); |
| |
| enum ibmvfc_cmd_flags { |
| IBMVFC_SCATTERLIST = 0x0001, |
| IBMVFC_NO_MEM_DESC = 0x0002, |
| IBMVFC_READ = 0x0004, |
| IBMVFC_WRITE = 0x0008, |
| IBMVFC_TMF = 0x0080, |
| IBMVFC_CLASS_3_ERR = 0x0100, |
| }; |
| |
| enum ibmvfc_fc_task_attr { |
| IBMVFC_SIMPLE_TASK = 0x00, |
| IBMVFC_HEAD_OF_QUEUE = 0x01, |
| IBMVFC_ORDERED_TASK = 0x02, |
| IBMVFC_ACA_TASK = 0x04, |
| }; |
| |
| enum ibmvfc_fc_tmf_flags { |
| IBMVFC_ABORT_TASK_SET = 0x02, |
| IBMVFC_LUN_RESET = 0x10, |
| IBMVFC_TARGET_RESET = 0x20, |
| }; |
| |
| struct ibmvfc_fcp_cmd_iu { |
| struct scsi_lun lun; |
| u8 crn; |
| u8 pri_task_attr; |
| u8 tmf_flags; |
| u8 add_cdb_len; |
| #define IBMVFC_RDDATA 0x02 |
| #define IBMVFC_WRDATA 0x01 |
| u8 cdb[IBMVFC_MAX_CDB_LEN]; |
| u32 xfer_len; |
| }__attribute__((packed, aligned (4))); |
| |
| struct ibmvfc_cmd { |
| u64 task_tag; |
| u32 frame_type; |
| u32 payload_len; |
| u32 resp_len; |
| u32 adapter_resid; |
| u16 status; |
| u16 error; |
| u16 flags; |
| u16 response_flags; |
| #define IBMVFC_ADAPTER_RESID_VALID 0x01 |
| u32 cancel_key; |
| u32 exchange_id; |
| struct srp_direct_buf ext_func; |
| struct srp_direct_buf ioba; |
| struct srp_direct_buf resp; |
| u64 correlation; |
| u64 tgt_scsi_id; |
| u64 tag; |
| u64 reserved3[2]; |
| struct ibmvfc_fcp_cmd_iu iu; |
| struct ibmvfc_fcp_rsp rsp; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_passthru_fc_iu { |
| u32 payload[7]; |
| #define IBMVFC_ADISC 0x52000000 |
| u32 response[7]; |
| }; |
| |
| struct ibmvfc_passthru_iu { |
| u64 task_tag; |
| u32 cmd_len; |
| u32 rsp_len; |
| u16 status; |
| u16 error; |
| u32 flags; |
| #define IBMVFC_FC_ELS 0x01 |
| u32 cancel_key; |
| u32 reserved; |
| struct srp_direct_buf cmd; |
| struct srp_direct_buf rsp; |
| u64 correlation; |
| u64 scsi_id; |
| u64 tag; |
| u64 reserved2[2]; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_passthru_mad { |
| struct ibmvfc_mad_common common; |
| struct srp_direct_buf cmd_ioba; |
| struct ibmvfc_passthru_iu iu; |
| struct ibmvfc_passthru_fc_iu fc_iu; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_trace_start_entry { |
| u32 xfer_len; |
| }__attribute__((packed)); |
| |
| struct ibmvfc_trace_end_entry { |
| u16 status; |
| u16 error; |
| u8 fcp_rsp_flags; |
| u8 rsp_code; |
| u8 scsi_status; |
| u8 reserved; |
| }__attribute__((packed)); |
| |
| struct ibmvfc_trace_entry { |
| struct ibmvfc_event *evt; |
| u32 time; |
| u32 scsi_id; |
| u32 lun; |
| u8 fmt; |
| u8 op_code; |
| u8 tmf_flags; |
| u8 type; |
| #define IBMVFC_TRC_START 0x00 |
| #define IBMVFC_TRC_END 0xff |
| union { |
| struct ibmvfc_trace_start_entry start; |
| struct ibmvfc_trace_end_entry end; |
| } u; |
| }__attribute__((packed, aligned (8))); |
| |
| enum ibmvfc_crq_formats { |
| IBMVFC_CMD_FORMAT = 0x01, |
| IBMVFC_ASYNC_EVENT = 0x02, |
| IBMVFC_MAD_FORMAT = 0x04, |
| }; |
| |
| enum ibmvfc_async_event { |
| IBMVFC_AE_ELS_PLOGI = 0x0001, |
| IBMVFC_AE_ELS_LOGO = 0x0002, |
| IBMVFC_AE_ELS_PRLO = 0x0004, |
| IBMVFC_AE_SCN_NPORT = 0x0008, |
| IBMVFC_AE_SCN_GROUP = 0x0010, |
| IBMVFC_AE_SCN_DOMAIN = 0x0020, |
| IBMVFC_AE_SCN_FABRIC = 0x0040, |
| IBMVFC_AE_LINK_UP = 0x0080, |
| IBMVFC_AE_LINK_DOWN = 0x0100, |
| IBMVFC_AE_LINK_DEAD = 0x0200, |
| IBMVFC_AE_HALT = 0x0400, |
| IBMVFC_AE_RESUME = 0x0800, |
| IBMVFC_AE_ADAPTER_FAILED = 0x1000, |
| }; |
| |
| struct ibmvfc_crq { |
| volatile u8 valid; |
| volatile u8 format; |
| u8 reserved[6]; |
| volatile u64 ioba; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_crq_queue { |
| struct ibmvfc_crq *msgs; |
| int size, cur; |
| dma_addr_t msg_token; |
| }; |
| |
| struct ibmvfc_async_crq { |
| volatile u8 valid; |
| u8 pad[3]; |
| u32 pad2; |
| volatile u64 event; |
| volatile u64 scsi_id; |
| volatile u64 wwpn; |
| volatile u64 node_name; |
| u64 reserved; |
| }__attribute__((packed, aligned (8))); |
| |
| struct ibmvfc_async_crq_queue { |
| struct ibmvfc_async_crq *msgs; |
| int size, cur; |
| dma_addr_t msg_token; |
| }; |
| |
| union ibmvfc_iu { |
| struct ibmvfc_mad_common mad_common; |
| struct ibmvfc_npiv_login_mad npiv_login; |
| struct ibmvfc_discover_targets discover_targets; |
| struct ibmvfc_port_login plogi; |
| struct ibmvfc_process_login prli; |
| struct ibmvfc_query_tgt query_tgt; |
| struct ibmvfc_implicit_logout implicit_logout; |
| struct ibmvfc_tmf tmf; |
| struct ibmvfc_cmd cmd; |
| struct ibmvfc_passthru_mad passthru; |
| }__attribute__((packed, aligned (8))); |
| |
| enum ibmvfc_target_action { |
| IBMVFC_TGT_ACTION_NONE = 0, |
| IBMVFC_TGT_ACTION_INIT, |
| IBMVFC_TGT_ACTION_INIT_WAIT, |
| IBMVFC_TGT_ACTION_ADD_RPORT, |
| IBMVFC_TGT_ACTION_DEL_RPORT, |
| }; |
| |
| struct ibmvfc_target { |
| struct list_head queue; |
| struct ibmvfc_host *vhost; |
| u64 scsi_id; |
| u64 new_scsi_id; |
| struct fc_rport *rport; |
| int target_id; |
| enum ibmvfc_target_action action; |
| int need_login; |
| int init_retries; |
| struct ibmvfc_service_parms service_parms; |
| struct ibmvfc_service_parms service_parms_change; |
| struct fc_rport_identifiers ids; |
| void (*job_step) (struct ibmvfc_target *); |
| struct kref kref; |
| }; |
| |
| /* a unit of work for the hosting partition */ |
| struct ibmvfc_event { |
| struct list_head queue; |
| struct ibmvfc_host *vhost; |
| struct ibmvfc_target *tgt; |
| struct scsi_cmnd *cmnd; |
| atomic_t free; |
| union ibmvfc_iu *xfer_iu; |
| void (*done) (struct ibmvfc_event *); |
| struct ibmvfc_crq crq; |
| union ibmvfc_iu iu; |
| union ibmvfc_iu *sync_iu; |
| struct srp_direct_buf *ext_list; |
| dma_addr_t ext_list_token; |
| struct completion comp; |
| struct completion *eh_comp; |
| struct timer_list timer; |
| }; |
| |
| /* a pool of event structs for use */ |
| struct ibmvfc_event_pool { |
| struct ibmvfc_event *events; |
| u32 size; |
| union ibmvfc_iu *iu_storage; |
| dma_addr_t iu_token; |
| }; |
| |
| enum ibmvfc_host_action { |
| IBMVFC_HOST_ACTION_NONE = 0, |
| IBMVFC_HOST_ACTION_INIT, |
| IBMVFC_HOST_ACTION_INIT_WAIT, |
| IBMVFC_HOST_ACTION_QUERY, |
| IBMVFC_HOST_ACTION_QUERY_TGTS, |
| IBMVFC_HOST_ACTION_TGT_DEL, |
| IBMVFC_HOST_ACTION_ALLOC_TGTS, |
| IBMVFC_HOST_ACTION_TGT_INIT, |
| IBMVFC_HOST_ACTION_TGT_DEL_FAILED, |
| IBMVFC_HOST_ACTION_TGT_ADD, |
| }; |
| |
| enum ibmvfc_host_state { |
| IBMVFC_NO_CRQ = 0, |
| IBMVFC_INITIALIZING, |
| IBMVFC_ACTIVE, |
| IBMVFC_HALTED, |
| IBMVFC_LINK_DOWN, |
| IBMVFC_LINK_DEAD, |
| IBMVFC_HOST_OFFLINE, |
| }; |
| |
| struct ibmvfc_host { |
| char name[8]; |
| struct list_head queue; |
| struct Scsi_Host *host; |
| enum ibmvfc_host_state state; |
| enum ibmvfc_host_action action; |
| #define IBMVFC_NUM_TRACE_INDEX_BITS 8 |
| #define IBMVFC_NUM_TRACE_ENTRIES (1 << IBMVFC_NUM_TRACE_INDEX_BITS) |
| #define IBMVFC_TRACE_SIZE (sizeof(struct ibmvfc_trace_entry) * IBMVFC_NUM_TRACE_ENTRIES) |
| struct ibmvfc_trace_entry *trace; |
| u32 trace_index:IBMVFC_NUM_TRACE_INDEX_BITS; |
| int num_targets; |
| struct list_head targets; |
| struct list_head sent; |
| struct list_head free; |
| struct device *dev; |
| struct ibmvfc_event_pool pool; |
| struct dma_pool *sg_pool; |
| mempool_t *tgt_pool; |
| struct ibmvfc_crq_queue crq; |
| struct ibmvfc_async_crq_queue async_crq; |
| struct ibmvfc_npiv_login login_info; |
| union ibmvfc_npiv_login_data *login_buf; |
| dma_addr_t login_buf_dma; |
| int disc_buf_sz; |
| int log_level; |
| struct ibmvfc_discover_targets_buf *disc_buf; |
| int task_set; |
| int init_retries; |
| int discovery_threads; |
| int client_migrated; |
| int reinit; |
| int delay_init; |
| int events_to_log; |
| #define IBMVFC_AE_LINKUP 0x0001 |
| #define IBMVFC_AE_LINKDOWN 0x0002 |
| #define IBMVFC_AE_RSCN 0x0004 |
| dma_addr_t disc_buf_dma; |
| unsigned int partition_number; |
| char partition_name[97]; |
| void (*job_step) (struct ibmvfc_host *); |
| struct task_struct *work_thread; |
| wait_queue_head_t init_wait_q; |
| wait_queue_head_t work_wait_q; |
| }; |
| |
| #define DBG_CMD(CMD) do { if (ibmvfc_debug) CMD; } while (0) |
| |
| #define tgt_dbg(t, fmt, ...) \ |
| DBG_CMD(dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)) |
| |
| #define tgt_info(t, fmt, ...) \ |
| dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__) |
| |
| #define tgt_err(t, fmt, ...) \ |
| dev_err((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__) |
| |
| #define ibmvfc_dbg(vhost, ...) \ |
| DBG_CMD(dev_info((vhost)->dev, ##__VA_ARGS__)) |
| |
| #define ibmvfc_log(vhost, level, ...) \ |
| do { \ |
| if ((vhost)->log_level >= level) \ |
| dev_err((vhost)->dev, ##__VA_ARGS__); \ |
| } while (0) |
| |
| #define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __func__)) |
| #define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __func__)) |
| |
| #ifdef CONFIG_SCSI_IBMVFC_TRACE |
| #define ibmvfc_create_trace_file(kobj, attr) sysfs_create_bin_file(kobj, attr) |
| #define ibmvfc_remove_trace_file(kobj, attr) sysfs_remove_bin_file(kobj, attr) |
| #else |
| #define ibmvfc_create_trace_file(kobj, attr) 0 |
| #define ibmvfc_remove_trace_file(kobj, attr) do { } while (0) |
| #endif |
| |
| #endif |