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938 lines
23 KiB
938 lines
23 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* ibmvfc.h -- driver for IBM Power Virtual Fibre Channel Adapter |
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* |
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* Written By: Brian King <[email protected]>, IBM Corporation |
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* |
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* Copyright (C) IBM Corporation, 2008 |
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*/ |
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#ifndef _IBMVFC_H |
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#define _IBMVFC_H |
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#include <linux/list.h> |
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#include <linux/types.h> |
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#include <scsi/viosrp.h> |
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#define IBMVFC_NAME "ibmvfc" |
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#define IBMVFC_DRIVER_VERSION "1.0.11" |
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#define IBMVFC_DRIVER_DATE "(April 12, 2013)" |
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#define IBMVFC_DEFAULT_TIMEOUT 60 |
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#define IBMVFC_ADISC_CANCEL_TIMEOUT 45 |
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#define IBMVFC_ADISC_TIMEOUT 15 |
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#define IBMVFC_ADISC_PLUS_CANCEL_TIMEOUT \ |
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(IBMVFC_ADISC_TIMEOUT + IBMVFC_ADISC_CANCEL_TIMEOUT) |
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#define IBMVFC_INIT_TIMEOUT 120 |
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#define IBMVFC_ABORT_TIMEOUT 8 |
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#define IBMVFC_ABORT_WAIT_TIMEOUT 40 |
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#define IBMVFC_MAX_REQUESTS_DEFAULT 100 |
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#define IBMVFC_DEBUG 0 |
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#define IBMVFC_MAX_TARGETS 1024 |
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#define IBMVFC_MAX_LUN 0xffffffff |
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#define IBMVFC_MAX_SECTORS 0xffffu |
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#define IBMVFC_MAX_DISC_THREADS 4 |
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#define IBMVFC_TGT_MEMPOOL_SZ 64 |
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#define IBMVFC_MAX_CMDS_PER_LUN 64 |
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#define IBMVFC_MAX_HOST_INIT_RETRIES 6 |
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#define IBMVFC_MAX_TGT_INIT_RETRIES 3 |
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#define IBMVFC_DEV_LOSS_TMO (5 * 60) |
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#define IBMVFC_DEFAULT_LOG_LEVEL 2 |
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#define IBMVFC_MAX_CDB_LEN 16 |
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#define IBMVFC_CLS3_ERROR 0 |
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#define IBMVFC_MQ 1 |
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#define IBMVFC_SCSI_CHANNELS 8 |
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#define IBMVFC_MAX_SCSI_QUEUES 16 |
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#define IBMVFC_SCSI_HW_QUEUES 8 |
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#define IBMVFC_MIG_NO_SUB_TO_CRQ 0 |
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#define IBMVFC_MIG_NO_N_TO_M 0 |
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/* |
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* Ensure we have resources for ERP and initialization: |
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* 1 for ERP |
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* 1 for initialization |
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* 1 for NPIV Logout |
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* 2 for BSG passthru |
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* 2 for each discovery thread |
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*/ |
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#define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + 1 + 2 + (disc_threads * 2)) |
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#define IBMVFC_MAD_SUCCESS 0x00 |
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#define IBMVFC_MAD_NOT_SUPPORTED 0xF1 |
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#define IBMVFC_MAD_VERSION_NOT_SUPP 0xF2 |
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#define IBMVFC_MAD_FAILED 0xF7 |
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#define IBMVFC_MAD_DRIVER_FAILED 0xEE |
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#define IBMVFC_MAD_CRQ_ERROR 0xEF |
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enum ibmvfc_crq_valid { |
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IBMVFC_CRQ_CMD_RSP = 0x80, |
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IBMVFC_CRQ_INIT_RSP = 0xC0, |
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IBMVFC_CRQ_XPORT_EVENT = 0xFF, |
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}; |
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enum ibmvfc_crq_init_msg { |
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IBMVFC_CRQ_INIT = 0x01, |
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IBMVFC_CRQ_INIT_COMPLETE = 0x02, |
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}; |
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enum ibmvfc_crq_xport_evts { |
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IBMVFC_PARTNER_FAILED = 0x01, |
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IBMVFC_PARTNER_DEREGISTER = 0x02, |
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IBMVFC_PARTITION_MIGRATED = 0x06, |
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}; |
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enum ibmvfc_cmd_status_flags { |
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IBMVFC_FABRIC_MAPPED = 0x0001, |
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IBMVFC_VIOS_FAILURE = 0x0002, |
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IBMVFC_FC_FAILURE = 0x0004, |
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IBMVFC_FC_SCSI_ERROR = 0x0008, |
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IBMVFC_HW_EVENT_LOGGED = 0x0010, |
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IBMVFC_VIOS_LOGGED = 0x0020, |
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}; |
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enum ibmvfc_fabric_mapped_errors { |
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IBMVFC_UNABLE_TO_ESTABLISH = 0x0001, |
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IBMVFC_XPORT_FAULT = 0x0002, |
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IBMVFC_CMD_TIMEOUT = 0x0003, |
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IBMVFC_ENETDOWN = 0x0004, |
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IBMVFC_HW_FAILURE = 0x0005, |
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IBMVFC_LINK_DOWN_ERR = 0x0006, |
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IBMVFC_LINK_DEAD_ERR = 0x0007, |
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IBMVFC_UNABLE_TO_REGISTER = 0x0008, |
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IBMVFC_XPORT_BUSY = 0x000A, |
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IBMVFC_XPORT_DEAD = 0x000B, |
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IBMVFC_CONFIG_ERROR = 0x000C, |
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IBMVFC_NAME_SERVER_FAIL = 0x000D, |
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IBMVFC_LINK_HALTED = 0x000E, |
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IBMVFC_XPORT_GENERAL = 0x8000, |
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}; |
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enum ibmvfc_vios_errors { |
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IBMVFC_CRQ_FAILURE = 0x0001, |
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IBMVFC_SW_FAILURE = 0x0002, |
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IBMVFC_INVALID_PARAMETER = 0x0003, |
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IBMVFC_MISSING_PARAMETER = 0x0004, |
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IBMVFC_HOST_IO_BUS = 0x0005, |
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IBMVFC_TRANS_CANCELLED = 0x0006, |
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IBMVFC_TRANS_CANCELLED_IMPLICIT = 0x0007, |
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IBMVFC_INSUFFICIENT_RESOURCE = 0x0008, |
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IBMVFC_PLOGI_REQUIRED = 0x0010, |
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IBMVFC_COMMAND_FAILED = 0x8000, |
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}; |
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enum ibmvfc_mad_types { |
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IBMVFC_NPIV_LOGIN = 0x0001, |
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IBMVFC_DISC_TARGETS = 0x0002, |
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IBMVFC_PORT_LOGIN = 0x0004, |
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IBMVFC_PROCESS_LOGIN = 0x0008, |
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IBMVFC_QUERY_TARGET = 0x0010, |
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IBMVFC_MOVE_LOGIN = 0x0020, |
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IBMVFC_IMPLICIT_LOGOUT = 0x0040, |
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IBMVFC_PASSTHRU = 0x0200, |
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IBMVFC_TMF_MAD = 0x0100, |
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IBMVFC_NPIV_LOGOUT = 0x0800, |
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IBMVFC_CHANNEL_ENQUIRY = 0x1000, |
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IBMVFC_CHANNEL_SETUP = 0x2000, |
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IBMVFC_CONNECTION_INFO = 0x4000, |
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}; |
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struct ibmvfc_mad_common { |
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__be32 version; |
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__be32 reserved; |
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__be32 opcode; |
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__be16 status; |
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__be16 length; |
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__be64 tag; |
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} __packed __aligned(8); |
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struct ibmvfc_npiv_login_mad { |
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struct ibmvfc_mad_common common; |
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struct srp_direct_buf buffer; |
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} __packed __aligned(8); |
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struct ibmvfc_npiv_logout_mad { |
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struct ibmvfc_mad_common common; |
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} __packed __aligned(8); |
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#define IBMVFC_MAX_NAME 256 |
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struct ibmvfc_npiv_login { |
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__be32 ostype; |
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#define IBMVFC_OS_LINUX 0x02 |
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__be32 pad; |
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__be64 max_dma_len; |
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__be32 max_payload; |
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__be32 max_response; |
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__be32 partition_num; |
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__be32 vfc_frame_version; |
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__be16 fcp_version; |
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__be16 flags; |
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#define IBMVFC_CLIENT_MIGRATED 0x01 |
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#define IBMVFC_FLUSH_ON_HALT 0x02 |
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__be32 max_cmds; |
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__be64 capabilities; |
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#define IBMVFC_CAN_MIGRATE 0x01 |
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#define IBMVFC_CAN_USE_CHANNELS 0x02 |
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#define IBMVFC_CAN_HANDLE_FPIN 0x04 |
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#define IBMVFC_CAN_USE_MAD_VERSION 0x08 |
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#define IBMVFC_CAN_SEND_VF_WWPN 0x10 |
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__be64 node_name; |
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struct srp_direct_buf async; |
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u8 partition_name[IBMVFC_MAX_NAME]; |
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u8 device_name[IBMVFC_MAX_NAME]; |
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u8 drc_name[IBMVFC_MAX_NAME]; |
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__be64 reserved2[2]; |
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} __packed __aligned(8); |
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struct ibmvfc_common_svc_parms { |
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__be16 fcph_version; |
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__be16 b2b_credit; |
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__be16 features; |
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__be16 bb_rcv_sz; /* upper nibble is BB_SC_N */ |
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__be32 ratov; |
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__be32 edtov; |
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} __packed __aligned(4); |
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struct ibmvfc_service_parms { |
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struct ibmvfc_common_svc_parms common; |
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u8 port_name[8]; |
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u8 node_name[8]; |
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__be32 class1_parms[4]; |
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__be32 class2_parms[4]; |
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__be32 class3_parms[4]; |
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__be32 obsolete[4]; |
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__be32 vendor_version[4]; |
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__be32 services_avail[2]; |
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__be32 ext_len; |
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__be32 reserved[30]; |
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__be32 clk_sync_qos[2]; |
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__be32 reserved2; |
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} __packed __aligned(4); |
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struct ibmvfc_npiv_login_resp { |
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__be32 version; |
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__be16 status; |
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__be16 error; |
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__be32 flags; |
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#define IBMVFC_NATIVE_FC 0x01 |
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__be32 reserved; |
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__be64 capabilities; |
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#define IBMVFC_CAN_FLUSH_ON_HALT 0x08 |
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#define IBMVFC_CAN_SUPPRESS_ABTS 0x10 |
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#define IBMVFC_MAD_VERSION_CAP 0x20 |
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#define IBMVFC_HANDLE_VF_WWPN 0x40 |
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#define IBMVFC_CAN_SUPPORT_CHANNELS 0x80 |
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__be32 max_cmds; |
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__be32 scsi_id_sz; |
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__be64 max_dma_len; |
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__be64 scsi_id; |
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__be64 port_name; |
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__be64 node_name; |
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__be64 link_speed; |
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u8 partition_name[IBMVFC_MAX_NAME]; |
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u8 device_name[IBMVFC_MAX_NAME]; |
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u8 port_loc_code[IBMVFC_MAX_NAME]; |
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u8 drc_name[IBMVFC_MAX_NAME]; |
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struct ibmvfc_service_parms service_parms; |
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__be64 reserved2; |
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} __packed __aligned(8); |
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union ibmvfc_npiv_login_data { |
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struct ibmvfc_npiv_login login; |
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struct ibmvfc_npiv_login_resp resp; |
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} __packed __aligned(8); |
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struct ibmvfc_discover_targets_entry { |
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__be32 scsi_id; |
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__be32 pad; |
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__be64 wwpn; |
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#define IBMVFC_DISC_TGT_SCSI_ID_MASK 0x00ffffff |
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} __packed __aligned(8); |
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struct ibmvfc_discover_targets { |
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struct ibmvfc_mad_common common; |
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struct srp_direct_buf buffer; |
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__be32 flags; |
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#define IBMVFC_DISC_TGT_PORT_ID_WWPN_LIST 0x02 |
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__be16 status; |
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__be16 error; |
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__be32 bufflen; |
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__be32 num_avail; |
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__be32 num_written; |
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__be64 reserved[2]; |
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} __packed __aligned(8); |
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enum ibmvfc_fc_reason { |
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IBMVFC_INVALID_ELS_CMD_CODE = 0x01, |
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IBMVFC_INVALID_VERSION = 0x02, |
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IBMVFC_LOGICAL_ERROR = 0x03, |
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IBMVFC_INVALID_CT_IU_SIZE = 0x04, |
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IBMVFC_LOGICAL_BUSY = 0x05, |
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IBMVFC_PROTOCOL_ERROR = 0x07, |
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IBMVFC_UNABLE_TO_PERFORM_REQ = 0x09, |
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IBMVFC_CMD_NOT_SUPPORTED = 0x0B, |
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IBMVFC_SERVER_NOT_AVAIL = 0x0D, |
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IBMVFC_CMD_IN_PROGRESS = 0x0E, |
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IBMVFC_VENDOR_SPECIFIC = 0xFF, |
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}; |
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enum ibmvfc_fc_type { |
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IBMVFC_FABRIC_REJECT = 0x01, |
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IBMVFC_PORT_REJECT = 0x02, |
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IBMVFC_LS_REJECT = 0x03, |
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IBMVFC_FABRIC_BUSY = 0x04, |
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IBMVFC_PORT_BUSY = 0x05, |
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IBMVFC_BASIC_REJECT = 0x06, |
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}; |
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enum ibmvfc_gs_explain { |
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IBMVFC_PORT_NAME_NOT_REG = 0x02, |
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}; |
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struct ibmvfc_port_login { |
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struct ibmvfc_mad_common common; |
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__be64 scsi_id; |
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__be16 reserved; |
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__be16 fc_service_class; |
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__be32 blksz; |
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__be32 hdr_per_blk; |
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__be16 status; |
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__be16 error; /* also fc_reason */ |
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__be16 fc_explain; |
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__be16 fc_type; |
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__be32 reserved2; |
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struct ibmvfc_service_parms service_parms; |
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struct ibmvfc_service_parms service_parms_change; |
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__be64 target_wwpn; |
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__be64 reserved3[2]; |
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} __packed __aligned(8); |
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struct ibmvfc_move_login { |
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struct ibmvfc_mad_common common; |
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__be64 old_scsi_id; |
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__be64 new_scsi_id; |
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__be64 wwpn; |
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__be64 node_name; |
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__be32 flags; |
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#define IBMVFC_MOVE_LOGIN_IMPLICIT_OLD_FAILED 0x01 |
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#define IBMVFC_MOVE_LOGIN_IMPLICIT_NEW_FAILED 0x02 |
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#define IBMVFC_MOVE_LOGIN_PORT_LOGIN_FAILED 0x04 |
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__be32 reserved; |
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struct ibmvfc_service_parms service_parms; |
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struct ibmvfc_service_parms service_parms_change; |
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__be32 reserved2; |
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__be16 service_class; |
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__be16 vios_flags; |
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#define IBMVFC_MOVE_LOGIN_VF_NOT_SENT_ADAPTER 0x01 |
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__be64 reserved3; |
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} __packed __aligned(8); |
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struct ibmvfc_prli_svc_parms { |
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u8 type; |
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#define IBMVFC_SCSI_FCP_TYPE 0x08 |
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u8 type_ext; |
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__be16 flags; |
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#define IBMVFC_PRLI_ORIG_PA_VALID 0x8000 |
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#define IBMVFC_PRLI_RESP_PA_VALID 0x4000 |
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#define IBMVFC_PRLI_EST_IMG_PAIR 0x2000 |
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__be32 orig_pa; |
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__be32 resp_pa; |
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__be32 service_parms; |
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#define IBMVFC_PRLI_TASK_RETRY 0x00000200 |
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#define IBMVFC_PRLI_RETRY 0x00000100 |
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#define IBMVFC_PRLI_DATA_OVERLAY 0x00000040 |
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#define IBMVFC_PRLI_INITIATOR_FUNC 0x00000020 |
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#define IBMVFC_PRLI_TARGET_FUNC 0x00000010 |
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#define IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED 0x00000002 |
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#define IBMVFC_PRLI_WR_FCP_XFER_RDY_DISABLED 0x00000001 |
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} __packed __aligned(4); |
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struct ibmvfc_process_login { |
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struct ibmvfc_mad_common common; |
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__be64 scsi_id; |
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struct ibmvfc_prli_svc_parms parms; |
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u8 reserved[48]; |
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__be16 status; |
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__be16 error; /* also fc_reason */ |
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__be32 reserved2; |
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__be64 target_wwpn; |
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__be64 reserved3[2]; |
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} __packed __aligned(8); |
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struct ibmvfc_query_tgt { |
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struct ibmvfc_mad_common common; |
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__be64 wwpn; |
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__be64 scsi_id; |
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__be16 status; |
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__be16 error; |
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__be16 fc_explain; |
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__be16 fc_type; |
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__be64 reserved[2]; |
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} __packed __aligned(8); |
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struct ibmvfc_implicit_logout { |
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struct ibmvfc_mad_common common; |
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__be64 old_scsi_id; |
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__be64 reserved[2]; |
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} __packed __aligned(8); |
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struct ibmvfc_tmf { |
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struct ibmvfc_mad_common common; |
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__be64 scsi_id; |
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struct scsi_lun lun; |
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__be32 flags; |
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#define IBMVFC_TMF_ABORT_TASK 0x02 |
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#define IBMVFC_TMF_ABORT_TASK_SET 0x04 |
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#define IBMVFC_TMF_LUN_RESET 0x10 |
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#define IBMVFC_TMF_TGT_RESET 0x20 |
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#define IBMVFC_TMF_LUA_VALID 0x40 |
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#define IBMVFC_TMF_SUPPRESS_ABTS 0x80 |
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__be32 cancel_key; |
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__be32 my_cancel_key; |
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__be32 pad; |
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__be64 target_wwpn; |
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__be64 task_tag; |
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__be64 reserved[2]; |
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} __packed __aligned(8); |
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|
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enum ibmvfc_fcp_rsp_info_codes { |
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RSP_NO_FAILURE = 0x00, |
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RSP_TMF_REJECTED = 0x04, |
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RSP_TMF_FAILED = 0x05, |
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RSP_TMF_INVALID_LUN = 0x09, |
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}; |
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|
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struct ibmvfc_fcp_rsp_info { |
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u8 reserved[3]; |
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u8 rsp_code; |
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u8 reserved2[4]; |
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} __packed __aligned(2); |
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|
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enum ibmvfc_fcp_rsp_flags { |
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FCP_BIDI_RSP = 0x80, |
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FCP_BIDI_READ_RESID_UNDER = 0x40, |
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FCP_BIDI_READ_RESID_OVER = 0x20, |
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FCP_CONF_REQ = 0x10, |
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FCP_RESID_UNDER = 0x08, |
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FCP_RESID_OVER = 0x04, |
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FCP_SNS_LEN_VALID = 0x02, |
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FCP_RSP_LEN_VALID = 0x01, |
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}; |
|
|
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union ibmvfc_fcp_rsp_data { |
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struct ibmvfc_fcp_rsp_info info; |
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u8 sense[SCSI_SENSE_BUFFERSIZE + sizeof(struct ibmvfc_fcp_rsp_info)]; |
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} __packed __aligned(8); |
|
|
|
struct ibmvfc_fcp_rsp { |
|
__be64 reserved; |
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__be16 retry_delay_timer; |
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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_event_pool evt_pool; |
|
struct list_head sent; |
|
struct list_head free; |
|
spinlock_t l_lock; |
|
|
|
union ibmvfc_iu cancel_rsp; |
|
|
|
/* Sub-CRQ fields */ |
|
struct ibmvfc_host *vhost; |
|
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
|
|
|