| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Brian King | 2460 | 78.32% | 29 | 53.70% |
| Tyrel Datwyler | 670 | 21.33% | 20 | 37.04% |
| Hannes Reinecke | 3 | 0.10% | 1 | 1.85% |
| Stephen Rothwell | 3 | 0.10% | 1 | 1.85% |
| Thomas Gleixner | 2 | 0.06% | 1 | 1.85% |
| Harvey Harrison | 2 | 0.06% | 1 | 1.85% |
| Bryant G. Ly | 1 | 0.03% | 1 | 1.85% |
| Total | 3141 | 54 |
/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * 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 */ #ifndef _IBMVFC_H #define _IBMVFC_H #include <linux/list.h> #include <linux/types.h> #include <scsi/viosrp.h> #define IBMVFC_NAME "ibmvfc" #define IBMVFC_DRIVER_VERSION "1.0.11" #define IBMVFC_DRIVER_DATE "(April 12, 2013)" #define IBMVFC_DEFAULT_TIMEOUT 60 #define IBMVFC_ADISC_CANCEL_TIMEOUT 45 #define IBMVFC_ADISC_TIMEOUT 15 #define IBMVFC_ADISC_PLUS_CANCEL_TIMEOUT \ (IBMVFC_ADISC_TIMEOUT + IBMVFC_ADISC_CANCEL_TIMEOUT) #define IBMVFC_INIT_TIMEOUT 120 #define IBMVFC_ABORT_TIMEOUT 8 #define IBMVFC_ABORT_WAIT_TIMEOUT 40 #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 #define IBMVFC_CLS3_ERROR 0 #define IBMVFC_MQ 1 #define IBMVFC_SCSI_CHANNELS 8 #define IBMVFC_MAX_SCSI_QUEUES 16 #define IBMVFC_SCSI_HW_QUEUES 8 #define IBMVFC_MIG_NO_SUB_TO_CRQ 0 #define IBMVFC_MIG_NO_N_TO_M 0 /* * Ensure we have resources for ERP and initialization: * 1 for ERP * 1 for initialization * 1 for NPIV Logout * 2 for BSG passthru * 2 for each discovery thread */ #define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + 1 + 2 + (disc_threads * 2)) #define IBMVFC_MAD_SUCCESS 0x00 #define IBMVFC_MAD_NOT_SUPPORTED 0xF1 #define IBMVFC_MAD_VERSION_NOT_SUPP 0xF2 #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_init_msg { IBMVFC_CRQ_INIT = 0x01, IBMVFC_CRQ_INIT_COMPLETE = 0x02, }; enum ibmvfc_crq_xport_evts { IBMVFC_PARTNER_FAILED = 0x01, IBMVFC_PARTNER_DEREGISTER = 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_MOVE_LOGIN = 0x0020, IBMVFC_IMPLICIT_LOGOUT = 0x0040, IBMVFC_PASSTHRU = 0x0200, IBMVFC_TMF_MAD = 0x0100, IBMVFC_NPIV_LOGOUT = 0x0800, IBMVFC_CHANNEL_ENQUIRY = 0x1000, IBMVFC_CHANNEL_SETUP = 0x2000, IBMVFC_CONNECTION_INFO = 0x4000, }; struct ibmvfc_mad_common { __be32 version; __be32 reserved; __be32 opcode; __be16 status; __be16 length; __be64 tag; } __packed __aligned(8); struct ibmvfc_npiv_login_mad { struct ibmvfc_mad_common common; struct srp_direct_buf buffer; } __packed __aligned(8); struct ibmvfc_npiv_logout_mad { struct ibmvfc_mad_common common; } __packed __aligned(8); #define IBMVFC_MAX_NAME 256 struct ibmvfc_npiv_login { __be32 ostype; #define IBMVFC_OS_LINUX 0x02 __be32 pad; __be64 max_dma_len; __be32 max_payload; __be32 max_response; __be32 partition_num; __be32 vfc_frame_version; __be16 fcp_version; __be16 flags; #define IBMVFC_CLIENT_MIGRATED 0x01 #define IBMVFC_FLUSH_ON_HALT 0x02 __be32 max_cmds; __be64 capabilities; #define IBMVFC_CAN_MIGRATE 0x01 #define IBMVFC_CAN_USE_CHANNELS 0x02 #define IBMVFC_CAN_HANDLE_FPIN 0x04 #define IBMVFC_CAN_USE_MAD_VERSION 0x08 #define IBMVFC_CAN_SEND_VF_WWPN 0x10 __be64 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]; __be64 reserved2[2]; } __packed __aligned(8); struct ibmvfc_common_svc_parms { __be16 fcph_version; __be16 b2b_credit; __be16 features; __be16 bb_rcv_sz; /* upper nibble is BB_SC_N */ __be32 ratov; __be32 edtov; } __packed __aligned(4); struct ibmvfc_service_parms { struct ibmvfc_common_svc_parms common; u8 port_name[8]; u8 node_name[8]; __be32 class1_parms[4]; __be32 class2_parms[4]; __be32 class3_parms[4]; __be32 obsolete[4]; __be32 vendor_version[4]; __be32 services_avail[2]; __be32 ext_len; __be32 reserved[30]; __be32 clk_sync_qos[2]; __be32 reserved2; } __packed __aligned(4); struct ibmvfc_npiv_login_resp { __be32 version; __be16 status; __be16 error; __be32 flags; #define IBMVFC_NATIVE_FC 0x01 __be32 reserved; __be64 capabilities; #define IBMVFC_CAN_FLUSH_ON_HALT 0x08 #define IBMVFC_CAN_SUPPRESS_ABTS 0x10 #define IBMVFC_MAD_VERSION_CAP 0x20 #define IBMVFC_HANDLE_VF_WWPN 0x40 #define IBMVFC_CAN_SUPPORT_CHANNELS 0x80 __be32 max_cmds; __be32 scsi_id_sz; __be64 max_dma_len; __be64 scsi_id; __be64 port_name; __be64 node_name; __be64 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; __be64 reserved2; } __packed __aligned(8); union ibmvfc_npiv_login_data { struct ibmvfc_npiv_login login; struct ibmvfc_npiv_login_resp resp; } __packed __aligned(8); struct ibmvfc_discover_targets_entry { __be32 scsi_id; __be32 pad; __be64 wwpn; #define IBMVFC_DISC_TGT_SCSI_ID_MASK 0x00ffffff } __packed __aligned(8); struct ibmvfc_discover_targets { struct ibmvfc_mad_common common; struct srp_direct_buf buffer; __be32 flags; #define IBMVFC_DISC_TGT_PORT_ID_WWPN_LIST 0x02 __be16 status; __be16 error; __be32 bufflen; __be32 num_avail; __be32 num_written; __be64 reserved[2]; } __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; __be64 scsi_id; __be16 reserved; __be16 fc_service_class; __be32 blksz; __be32 hdr_per_blk; __be16 status; __be16 error; /* also fc_reason */ __be16 fc_explain; __be16 fc_type; __be32 reserved2; struct ibmvfc_service_parms service_parms; struct ibmvfc_service_parms service_parms_change; __be64 target_wwpn; __be64 reserved3[2]; } __packed __aligned(8); struct ibmvfc_move_login { struct ibmvfc_mad_common common; __be64 old_scsi_id; __be64 new_scsi_id; __be64 wwpn; __be64 node_name; __be32 flags; #define IBMVFC_MOVE_LOGIN_IMPLICIT_OLD_FAILED 0x01 #define IBMVFC_MOVE_LOGIN_IMPLICIT_NEW_FAILED 0x02 #define IBMVFC_MOVE_LOGIN_PORT_LOGIN_FAILED 0x04 __be32 reserved; struct ibmvfc_service_parms service_parms; struct ibmvfc_service_parms service_parms_change; __be32 reserved2; __be16 service_class; __be16 vios_flags; #define IBMVFC_MOVE_LOGIN_VF_NOT_SENT_ADAPTER 0x01 __be64 reserved3; } __packed __aligned(8); struct ibmvfc_prli_svc_parms { u8 type; #define IBMVFC_SCSI_FCP_TYPE 0x08 u8 type_ext; __be16 flags; #define IBMVFC_PRLI_ORIG_PA_VALID 0x8000 #define IBMVFC_PRLI_RESP_PA_VALID 0x4000 #define IBMVFC_PRLI_EST_IMG_PAIR 0x2000 __be32 orig_pa; __be32 resp_pa; __be32 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 } __packed __aligned(4); struct ibmvfc_process_login { struct ibmvfc_mad_common common; __be64 scsi_id; struct ibmvfc_prli_svc_parms parms; u8 reserved[48]; __be16 status; __be16 error; /* also fc_reason */ __be32 reserved2; __be64 target_wwpn; __be64 reserved3[2]; } __packed __aligned(8); struct ibmvfc_query_tgt { struct ibmvfc_mad_common common; __be64 wwpn; __be64 scsi_id; __be16 status; __be16 error; __be16 fc_explain; __be16 fc_type; __be64 reserved[2]; } __packed __aligned(8); struct ibmvfc_implicit_logout { struct ibmvfc_mad_common common; __be64 old_scsi_id; __be64 reserved[2]; } __packed __aligned(8); struct ibmvfc_tmf { struct ibmvfc_mad_common common; __be64 scsi_id; struct scsi_lun lun; __be32 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 #define IBMVFC_TMF_SUPPRESS_ABTS 0x80 __be32 cancel_key; __be32 my_cancel_key; __be32 pad; __be64 target_wwpn; __be64 task_tag; __be64 reserved[2]; } __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 { u8 reserved[3]; u8 rsp_code; u8 reserved2[4]; } __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)]; } __packed __aligned(8); struct ibmvfc_fcp_rsp { __be64 reserved; __be16 retry_delay_timer; u8 flags; u8 scsi_status; __be32 fcp_resid; __be32 fcp_sense_len; __be32 fcp_rsp_len; union ibmvfc_fcp_rsp_data data; } __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]; __be32 xfer_len; } __packed __aligned(4); struct ibmvfc_cmd { __be64 task_tag; __be32 frame_type; __be32 payload_len; __be32 resp_len; __be32 adapter_resid; __be16 status; __be16 error; __be16 flags; __be16 response_flags; #define IBMVFC_ADAPTER_RESID_VALID 0x01 __be32 cancel_key; __be32 exchange_id; struct srp_direct_buf ext_func; struct srp_direct_buf ioba; struct srp_direct_buf resp; __be64 correlation; __be64 tgt_scsi_id; __be64 tag; __be64 target_wwpn; __be64 reserved3; union { struct { struct ibmvfc_fcp_cmd_iu iu; struct ibmvfc_fcp_rsp rsp; } v1; struct { __be64 reserved4; struct ibmvfc_fcp_cmd_iu iu; struct ibmvfc_fcp_rsp rsp; } v2; }; } __packed __aligned(8); struct ibmvfc_passthru_fc_iu { __be32 payload[7]; #define IBMVFC_ADISC 0x52000000 __be32 response[7]; }; struct ibmvfc_passthru_iu { __be64 task_tag; __be32 cmd_len; __be32 rsp_len; __be16 status; __be16 error; __be32 flags; #define IBMVFC_FC_ELS 0x01 #define IBMVFC_FC_CT_IU 0x02 __be32 cancel_key; #define IBMVFC_PASSTHRU_CANCEL_KEY 0x80000000 #define IBMVFC_INTERNAL_CANCEL_KEY 0x80000001 __be32 reserved; struct srp_direct_buf cmd; struct srp_direct_buf rsp; __be64 correlation; __be64 scsi_id; __be64 tag; __be64 target_wwpn; __be64 reserved2[2]; } __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; } __packed __aligned(8); struct ibmvfc_channel_enquiry { struct ibmvfc_mad_common common; __be32 flags; #define IBMVFC_NO_CHANNELS_TO_CRQ_SUPPORT 0x01 #define IBMVFC_SUPPORT_VARIABLE_SUBQ_MSG 0x02 #define IBMVFC_NO_N_TO_M_CHANNELS_SUPPORT 0x04 __be32 num_scsi_subq_channels; __be32 num_nvmeof_subq_channels; __be32 num_scsi_vas_channels; __be32 num_nvmeof_vas_channels; } __packed __aligned(8); struct ibmvfc_channel_setup_mad { struct ibmvfc_mad_common common; struct srp_direct_buf buffer; } __packed __aligned(8); #define IBMVFC_MAX_CHANNELS 502 struct ibmvfc_channel_setup { __be32 flags; #define IBMVFC_CANCEL_CHANNELS 0x01 #define IBMVFC_USE_BUFFER 0x02 #define IBMVFC_CHANNELS_CANCELED 0x04 __be32 reserved; __be32 num_scsi_subq_channels; __be32 num_nvmeof_subq_channels; __be32 num_scsi_vas_channels; __be32 num_nvmeof_vas_channels; struct srp_direct_buf buffer; __be64 reserved2[5]; __be64 channel_handles[IBMVFC_MAX_CHANNELS]; } __packed __aligned(8); struct ibmvfc_connection_info { struct ibmvfc_mad_common common; __be64 information_bits; #define IBMVFC_NO_FC_IO_CHANNEL 0x01 #define IBMVFC_NO_PHYP_VAS 0x02 #define IBMVFC_NO_PHYP_SUBQ 0x04 #define IBMVFC_PHYP_DEPRECATED_SUBQ 0x08 #define IBMVFC_PHYP_PRESERVED_SUBQ 0x10 #define IBMVFC_PHYP_FULL_SUBQ 0x20 __be64 reserved[16]; } __packed __aligned(8); struct ibmvfc_trace_start_entry { u32 xfer_len; } __packed; struct ibmvfc_trace_end_entry { u16 status; u16 error; u8 fcp_rsp_flags; u8 rsp_code; u8 scsi_status; u8 reserved; } __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; } __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, IBMVFC_AE_FPIN = 0x2000, }; struct ibmvfc_async_desc { const char *desc; enum ibmvfc_async_event ae; int log_level; }; struct ibmvfc_crq { volatile u8 valid; volatile u8 format; u8 reserved[6]; volatile __be64 ioba; } __packed __aligned(8); struct ibmvfc_sub_crq { struct ibmvfc_crq crq; __be64 reserved[2]; } __packed __aligned(8); enum ibmvfc_ae_link_state { IBMVFC_AE_LS_LINK_UP = 0x01, IBMVFC_AE_LS_LINK_BOUNCED = 0x02, IBMVFC_AE_LS_LINK_DOWN = 0x04, IBMVFC_AE_LS_LINK_DEAD = 0x08, }; enum ibmvfc_ae_fpin_status { IBMVFC_AE_FPIN_LINK_CONGESTED = 0x1, IBMVFC_AE_FPIN_PORT_CONGESTED = 0x2, IBMVFC_AE_FPIN_PORT_CLEARED = 0x3, IBMVFC_AE_FPIN_PORT_DEGRADED = 0x4, }; struct ibmvfc_async_crq { volatile u8 valid; u8 link_state; u8 fpin_status; u8 pad; __be32 pad2; volatile __be64 event; volatile __be64 scsi_id; volatile __be64 wwpn; volatile __be64 node_name; __be64 reserved; } __packed __aligned(8); union ibmvfc_iu { struct ibmvfc_mad_common mad_common; struct ibmvfc_npiv_login_mad npiv_login; struct ibmvfc_npiv_logout_mad npiv_logout; struct ibmvfc_discover_targets discover_targets; struct ibmvfc_port_login plogi; struct ibmvfc_process_login prli; struct ibmvfc_move_login move_login; 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; struct ibmvfc_channel_enquiry channel_enquiry; struct ibmvfc_channel_setup_mad channel_setup; struct ibmvfc_connection_info connection_info; } __packed __aligned(8); enum ibmvfc_target_action { IBMVFC_TGT_ACTION_NONE = 0, IBMVFC_TGT_ACTION_INIT, IBMVFC_TGT_ACTION_INIT_WAIT, IBMVFC_TGT_ACTION_LOGOUT_RPORT, IBMVFC_TGT_ACTION_LOGOUT_RPORT_WAIT, IBMVFC_TGT_ACTION_DEL_RPORT, IBMVFC_TGT_ACTION_DELETED_RPORT, IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT, IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT, }; struct ibmvfc_target { struct list_head queue; struct ibmvfc_host *vhost; u64 scsi_id; u64 wwpn; u64 new_scsi_id; struct fc_rport *rport; int target_id; enum ibmvfc_target_action action; int need_login; int add_rport; int init_retries; int logo_rcvd; int move_login; u32 cancel_key; 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 timer_list timer; struct kref kref; }; /* a unit of work for the hosting partition */ struct ibmvfc_event { struct list_head queue_list; struct list_head cancel; struct ibmvfc_host *vhost; struct ibmvfc_queue *queue; struct ibmvfc_target *tgt; struct scsi_cmnd *cmnd; atomic_t free; atomic_t active; union ibmvfc_iu *xfer_iu; void (*done)(struct ibmvfc_event *evt); void (*_done)(struct ibmvfc_event *evt); 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; u16 hwq; }; /* 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_msg_fmt { IBMVFC_CRQ_FMT = 0, IBMVFC_ASYNC_FMT, IBMVFC_SUB_CRQ_FMT, }; union ibmvfc_msgs { void *handle; struct ibmvfc_crq *crq; struct ibmvfc_async_crq *async; struct ibmvfc_sub_crq *scrq; }; struct ibmvfc_queue { union ibmvfc_msgs msgs; dma_addr_t msg_token; enum ibmvfc_msg_fmt fmt; int size, cur; spinlock_t _lock; spinlock_t *q_lock; struct ibmvfc_host *vhost; struct ibmvfc_event_pool evt_pool; struct list_head sent; struct list_head free; spinlock_t l_lock; union ibmvfc_iu cancel_rsp; /* Sub-CRQ fields */ unsigned long cookie; unsigned long vios_cookie; unsigned long hw_irq; unsigned long irq; unsigned long hwq_id; char name[32]; }; struct ibmvfc_scsi_channels { struct ibmvfc_queue *scrqs; unsigned int active_queues; }; enum ibmvfc_host_action { IBMVFC_HOST_ACTION_NONE = 0, IBMVFC_HOST_ACTION_RESET, IBMVFC_HOST_ACTION_REENABLE, IBMVFC_HOST_ACTION_LOGO, IBMVFC_HOST_ACTION_LOGO_WAIT, 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, }; 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_INDEX_MASK (IBMVFC_NUM_TRACE_ENTRIES - 1) #define IBMVFC_TRACE_SIZE (sizeof(struct ibmvfc_trace_entry) * IBMVFC_NUM_TRACE_ENTRIES) struct ibmvfc_trace_entry *trace; atomic_t trace_index; int num_targets; struct list_head targets; struct list_head purge; struct device *dev; struct dma_pool *sg_pool; mempool_t *tgt_pool; struct ibmvfc_queue crq; struct ibmvfc_queue async_crq; struct ibmvfc_scsi_channels scsi_scrqs; struct ibmvfc_npiv_login login_info; union ibmvfc_npiv_login_data *login_buf; dma_addr_t login_buf_dma; struct ibmvfc_channel_setup *channel_setup_buf; dma_addr_t channel_setup_dma; int disc_buf_sz; int log_level; struct ibmvfc_discover_targets_entry *disc_buf; struct mutex passthru_mutex; int max_vios_scsi_channels; int task_set; int init_retries; int discovery_threads; int abort_threads; int client_migrated; int reinit; int delay_init; int scan_complete; int scan_timeout; int logged_in; int mq_enabled; int using_channels; int do_enquiry; int client_scsi_channels; int aborting_passthru; 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; struct tasklet_struct tasklet; struct work_struct rport_add_work_q; 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 tgt_log(t, level, fmt, ...) \ do { \ if ((t)->vhost->log_level >= level) \ tgt_err(t, fmt, ##__VA_ARGS__); \ } while (0) #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
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