939 lines
23 KiB
C
939 lines
23 KiB
C
/* 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
|