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path: root/drivers/scsi/leapraid/leapraid.h
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-rw-r--r--drivers/scsi/leapraid/leapraid.h2048
1 files changed, 2048 insertions, 0 deletions
diff --git a/drivers/scsi/leapraid/leapraid.h b/drivers/scsi/leapraid/leapraid.h
new file mode 100644
index 000000000..c2d28359b
--- /dev/null
+++ b/drivers/scsi/leapraid/leapraid.h
@@ -0,0 +1,2048 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2026 LeapIO Tech Inc.
+ *
+ * LeapRAID storage and RAID controller driver.
+ */
+#ifndef LEAPRAID_H
+#define LEAPRAID_H
+
+/* Doorbell register definitions. */
+#define LEAPRAID_DB_RESET 0x00000000
+#define LEAPRAID_DB_READY 0x10000000
+#define LEAPRAID_DB_OPERATIONAL 0x20000000
+#define LEAPRAID_DB_FAULT 0x40000000
+
+#define LEAPRAID_DB_MASK 0xF0000000
+
+#define LEAPRAID_DB_OVER_TEMPERATURE 0x2810
+
+#define LEAPRAID_DB_USED 0x08000000
+#define LEAPRAID_DB_DATA_MASK 0x0000FFFF
+#define LEAPRAID_DB_FUNC_SHIFT 24
+#define LEAPRAID_DB_ADD_DWORDS_SHIFT 16
+
+/* Maximum number of retries waiting for doorbell to become ready. */
+#define LEAPRAID_DB_RETRY_COUNT_MAX 10
+/* Maximum number of retries waiting for doorbell to become operational. */
+#define LEAPRAID_DB_WAIT_OP_SHORT 10
+#define LEAPRAID_DB_WAIT_OP_LONG 200
+
+/* Maximum number of retries waiting for host to end recovery. */
+#define LEAPRAID_WAIT_SHOST_RECOVERY 400
+
+/* Diagnostic register definitions. */
+#define LEAPRAID_DIAG_WRITE_ENABLE 0x00000080
+#define LEAPRAID_DIAG_RESET 0x00000004
+
+/* Interrupt status register definitions. */
+#define LEAPRAID_HOST2ADAPTER_DB_STATUS 0x80000000
+#define LEAPRAID_ADAPTER2HOST_DB_STATUS 0x00000001
+
+/* The number of debug register. */
+#define LEAPRAID_DEBUGLOG_SZ_MAX 16
+
+/* Reply post host register definitions. */
+#define REP_POST_HOST_IDX_REG_CNT 16
+#define LEAPRAID_RPHI_MSIX_IDX_SHIFT 24
+
+/* Virtual PHY flags. */
+#define LEAPRAID_SAS_PHYINFO_VPHY 0x00001000
+
+/* Linux driver init firmware. */
+#define LEAPRAID_WHOINIT_LINUX_DRIVER 0x04
+
+/* Reply descriptor post queue array mode. */
+#define LEAPRAID_ADAPTER_INIT_MSGFLG_RDPQ_ARRAY_MODE 0x01
+
+/* Request description flags. */
+#define LEAPRAID_REQ_DESC_FLG_SCSI_IO 0x00
+#define LEAPRAID_REQ_DESC_FLG_HPR 0x06
+#define LEAPRAID_REQ_DESC_FLG_DFLT_TYPE 0x08
+
+/* Reply description flags. */
+#define LEAPRAID_RPY_DESC_FLG_TYPE_MASK 0x0F
+#define LEAPRAID_RPY_DESC_FLG_SCSI_IO_SUCCESS 0x00
+#define LEAPRAID_RPY_DESC_FLG_ADDRESS_REPLY 0x01
+#define LEAPRAID_RPY_DESC_FLG_FP_SCSI_IO_SUCCESS 0x06
+#define LEAPRAID_RPY_DESC_FLG_UNUSED 0x0F
+
+/* Request and reply messages share the same set of function codes.
+ *
+ * Note: SCSIIO (SCSI I/O) represents SCSI I/O operations and is used
+ * consistently throughout the driver for all SCSI command handling.
+ */
+#define LEAPRAID_FUNC_SCSIIO 0x00
+#define LEAPRAID_FUNC_SCSI_TMF 0x01
+#define LEAPRAID_FUNC_ADAPTER_INIT 0x02
+#define LEAPRAID_FUNC_GET_ADAPTER_FEATURES 0x03
+#define LEAPRAID_FUNC_CONFIG_OP 0x04
+#define LEAPRAID_FUNC_SCAN_DEV 0x06
+#define LEAPRAID_FUNC_EVENT_NOTIFY 0x07
+#define LEAPRAID_FUNC_FW_DOWNLOAD 0x09
+#define LEAPRAID_FUNC_FW_UPLOAD 0x12
+#define LEAPRAID_FUNC_SCSIIO_RAID_PASSTHROUGH 0x16
+#define LEAPRAID_FUNC_SCSI_ENC_PROCESSOR 0x18
+#define LEAPRAID_FUNC_SMP_PASSTHROUGH 0x1A
+#define LEAPRAID_FUNC_SAS_IO_UNIT_CTRL 0x1B
+#define LEAPRAID_FUNC_SCSIIO_SATA_PASSTHROUGH 0x1C
+#define LEAPRAID_FUNC_ADAPTER_UNIT_RESET 0x40
+#define LEAPRAID_FUNC_HANDSHAKE 0x42
+#define LEAPRAID_FUNC_LOGBUF_INIT 0x57
+
+/* Adapter status values. */
+#define LEAPRAID_ADAPTER_STATUS_MASK 0x7FFF
+#define LEAPRAID_ADAPTER_STATUS_SUCCESS 0x0000
+#define LEAPRAID_ADAPTER_STATUS_BUSY 0x0002
+#define LEAPRAID_ADAPTER_STATUS_INTERNAL_ERROR 0x0004
+#define LEAPRAID_ADAPTER_STATUS_INSUFFICIENT_RESOURCES 0x0006
+#define LEAPRAID_ADAPTER_STATUS_CONFIG_INVALID_ACTION 0x0020
+#define LEAPRAID_ADAPTER_STATUS_CONFIG_INVALID_TYPE 0x0021
+#define LEAPRAID_ADAPTER_STATUS_CONFIG_INVALID_PAGE 0x0022
+#define LEAPRAID_ADAPTER_STATUS_CONFIG_INVALID_DATA 0x0023
+#define LEAPRAID_ADAPTER_STATUS_CONFIG_NO_DEFAULTS 0x0024
+#define LEAPRAID_ADAPTER_STATUS_CONFIG_CANT_COMMIT 0x0025
+#define LEAPRAID_ADAPTER_STATUS_SCSI_RECOVERED_ERROR 0x0040
+#define LEAPRAID_ADAPTER_STATUS_SCSI_DEVICE_NOT_THERE 0x0043
+#define LEAPRAID_ADAPTER_STATUS_SCSI_DATA_OVERRUN 0x0044
+#define LEAPRAID_ADAPTER_STATUS_SCSI_DATA_UNDERRUN 0x0045
+#define LEAPRAID_ADAPTER_STATUS_SCSI_IO_DATA_ERROR 0x0046
+#define LEAPRAID_ADAPTER_STATUS_SCSI_PROTOCOL_ERROR 0x0047
+#define LEAPRAID_ADAPTER_STATUS_SCSI_TASK_TERMINATED 0x0048
+#define LEAPRAID_ADAPTER_STATUS_SCSI_RESIDUAL_MISMATCH 0x0049
+#define LEAPRAID_ADAPTER_STATUS_SCSI_TASK_MGMT_FAILED 0x004A
+#define LEAPRAID_ADAPTER_STATUS_SCSI_ADAPTER_TERMINATED 0x004B
+#define LEAPRAID_ADAPTER_STATUS_SCSI_EXT_TERMINATED 0x004C
+
+/* SGE flags. */
+#define LEAPRAID_SGE_FLG_LAST_ONE 0x80
+#define LEAPRAID_SGE_FLG_EOB 0x40
+#define LEAPRAID_SGE_FLG_EOL 0x01
+#define LEAPRAID_SGE_FLG_SHIFT 24
+#define LEAPRAID_SGE_FLG_SIMPLE_ONE 0x10
+#define LEAPRAID_SGE_FLG_SYSTEM_ADDR 0x00
+#define LEAPRAID_SGE_FLG_H2C 0x04
+#define LEAPRAID_SGE_FLG_32 0x00
+#define LEAPRAID_SGE_FLG_64 0x02
+
+#define LEAPRAID_IEEE_SGE_FLG_EOL 0x40
+#define LEAPRAID_IEEE_SGE_FLG_SIMPLE_ONE 0x00
+#define LEAPRAID_IEEE_SGE_FLG_CHAIN_ONE 0x80
+#define LEAPRAID_IEEE_SGE_FLG_SYSTEM_ADDR 0x00
+
+#define LEAPRAID_SGE_NO_DATA_ADDR -1
+#define LEAPRAID_SGE_OFFSET_SIZE 4
+
+/* The type of page. */
+#define LEAPRAID_CFG_PT_IO_UNIT 0x00
+#define LEAPRAID_CFG_PT_ADAPTER 0x01
+#define LEAPRAID_CFG_PT_BIOS 0x02
+#define LEAPRAID_CFG_PT_RAID_VOLUME 0x08
+#define LEAPRAID_CFG_PT_MANUFACTURING 0x09
+#define LEAPRAID_CFG_PT_RAID_PHYSDISK 0x0A
+#define LEAPRAID_CFG_PT_EXTENDED 0x0F
+
+/* The type of extended page. */
+#define LEAPRAID_CFG_EXTPT_SAS_IO_UNIT 0x10
+#define LEAPRAID_CFG_EXTPT_SAS_EXP 0x11
+#define LEAPRAID_CFG_EXTPT_SAS_DEV 0x12
+#define LEAPRAID_CFG_EXTPT_SAS_PHY 0x13
+#define LEAPRAID_CFG_EXTPT_ENC 0x15
+#define LEAPRAID_CFG_EXTPT_RAID_CONFIG 0x16
+
+/* Config page address. */
+#define LEAPRAID_SAS_CFG_PGAD_GET_NEXT_LOOP 0x00000000
+#define LEAPRAID_SAS_ENC_CFG_PGAD_HDL 0x10000000
+#define LEAPRAID_SAS_DEV_CFG_PGAD_HDL 0x20000000
+#define LEAPRAID_SAS_EXP_CFG_PGAD_HDL_PHY_NUM 0x10000000
+#define LEAPRAID_SAS_EXP_CFD_PGAD_HDL 0x20000000
+#define LEAPRAID_SAS_EXP_CFG_PGAD_PHYNUM_SHIFT 16
+#define LEAPRAID_RAID_VOL_CFG_PGAD_HDL 0x10000000
+#define LEAPRAID_SAS_PHY_CFG_PGAD_PHY_NUMBER 0x00000000
+#define LEAPRAID_PHYSDISK_CFG_PGAD_PHYSDISKNUM 0x10000000
+
+/* Config page operations. */
+#define LEAPRAID_CFG_ACT_PAGE_HEADER 0x00
+#define LEAPRAID_CFG_ACT_PAGE_READ_CUR 0x01
+#define LEAPRAID_CFG_ACT_PAGE_WRITE_CUR 0x02
+
+/* BIOS page number. */
+#define LEAPRAID_CFG_PAGE_NUM_BIOS2 0x2
+#define LEAPRAID_CFG_PAGE_NUM_BIOS3 0x3
+
+/* Manufacturing page number. */
+#define LEAPRAID_CFG_PAGE_NUM_MANU0 0x0
+
+/* SAS device page number. */
+#define LEAPRAID_CFG_PAGE_NUM_DEV0 0x0
+
+/* SAS device page 0 flags. */
+#define LEAPRAID_SAS_DEV_P0_FLG_ENC_LEVEL_VALID 0x0002
+#define LEAPRAID_SAS_DEV_P0_FLG_DEV_PRESENT 0x0001
+#define LEAPRAID_SAS_DEV_P0_CON_NAME_LEN 4
+
+/* SAS I/O unit page number. */
+#define LEAPRAID_CFG_PAGE_NUM_IOUNIT0 0x0
+#define LEAPRAID_CFG_PAGE_NUM_IOUNIT1 0x1
+
+/* SAS expander page number. */
+#define LEAPRAID_CFG_PAGE_NUM_EXP0 0x0
+#define LEAPRAID_CFG_PAGE_NUM_EXP1 0x1
+
+/* SAS enclosure page number. */
+#define LEAPRAID_CFG_PAGE_NUM_ENC0 0x0
+
+/* SAS PHY page number. */
+#define LEAPRAID_CFG_PAGE_NUM_PHY0 0x0
+
+/* RAID volume page number. */
+#define LEAPRAID_CFG_PAGE_NUM_VOL0 0x0
+#define LEAPRAID_CFG_PAGE_NUM_VOL1 0x1
+
+/* Physical disk page number. */
+#define LEAPRAID_CFG_PAGE_NUM_PD0 0x0
+
+#define LEAPRAID_CFG_UNIT_SIZE 4
+
+/* Raid volume type and state. */
+#define LEAPRAID_VOL_STATE_ONLINE 0x03
+#define LEAPRAID_VOL_STATE_DEGRADED 0x04
+#define LEAPRAID_VOL_STATE_OPTIMAL 0x05
+#define LEAPRAID_VOL_TYPE_RAID0 0x00
+#define LEAPRAID_VOL_TYPE_RAID1E 0x01
+#define LEAPRAID_VOL_TYPE_RAID1 0x02
+#define LEAPRAID_VOL_TYPE_RAID10 0x05
+#define LEAPRAID_VOL_TYPE_UNKNOWN 0xFF
+
+/* Raid volume element flags. */
+#define LEAPRAID_RAIDCFG_P0_EFLG_MASK_ELEMENT_TYPE 0x000F
+#define LEAPRAID_RAIDCFG_P0_EFLG_VOL_PHYS_DISK_ELEMENT 0x0001
+#define LEAPRAID_RAIDCFG_P0_EFLG_HOT_SPARE_ELEMENT 0x0002
+#define LEAPRAID_RAIDCFG_P0_EFLG_OCE_ELEMENT 0x0003
+
+/* SAS negotiated link rates. */
+#define LEAPRAID_SAS_NEG_LINK_RATE_MASK_PHYSICAL 0x0F
+#define LEAPRAID_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE 0x00
+#define LEAPRAID_SAS_NEG_LINK_RATE_PHY_DISABLED 0x01
+#define LEAPRAID_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED 0x02
+#define LEAPRAID_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE 0x03
+#define LEAPRAID_SAS_NEG_LINK_RATE_PORT_SELECTOR 0x04
+#define LEAPRAID_SAS_NEG_LINK_RATE_SMP_RESETTING 0x05
+#define LEAPRAID_SAS_NEG_LINK_RATE_SHIFT 4
+
+#define LEAPRAID_SAS_NEG_LINK_RATE_1_5 0x08
+#define LEAPRAID_SAS_NEG_LINK_RATE_3_0 0x09
+#define LEAPRAID_SAS_NEG_LINK_RATE_6_0 0x0A
+#define LEAPRAID_SAS_NEG_LINK_RATE_12_0 0x0B
+
+#define LEAPRAID_SAS_PRATE_MIN_RATE_MASK 0x0F
+#define LEAPRAID_SAS_HWRATE_MIN_RATE_MASK 0x0F
+
+/*
+ * Control flags for a SCSI I/O Request.
+ */
+#define LEAPRAID_SCSIIO_CTRL_CDB_32BYTE 4
+#define LEAPRAID_SCSIIO_CTRL_CDB_LEN_SHIFT 26
+#define LEAPRAID_SCSIIO_CTRL_NODATATRANSFER 0x00000000
+#define LEAPRAID_SCSIIO_CTRL_WRITE 0x01000000
+#define LEAPRAID_SCSIIO_CTRL_READ 0x02000000
+#define LEAPRAID_SCSIIO_CTRL_BIDIRECTIONAL 0x03000000
+#define LEAPRAID_SCSIIO_CTRL_SIMPLEQ 0x00000000
+#define LEAPRAID_SCSIIO_CTRL_ORDEREDQ 0x00000200
+#define LEAPRAID_SCSIIO_CTRL_CMDPRI 0x00000800
+
+/* SCSI state and status. */
+#define LEAPRAID_SCSI_STATUS_BUSY 0x08
+#define LEAPRAID_SCSI_STATUS_RESERVATION_CONFLICT 0x18
+#define LEAPRAID_SCSI_STATUS_TASK_SET_FULL 0x28
+
+#define LEAPRAID_SCSI_STATE_RESPONSE_INFO_VALID 0x10
+#define LEAPRAID_SCSI_STATE_TERMINATED 0x08
+#define LEAPRAID_SCSI_STATE_NO_SCSI_STATUS 0x04
+#define LEAPRAID_SCSI_STATE_AUTOSENSE_FAILED 0x02
+#define LEAPRAID_SCSI_STATE_AUTOSENSE_VALID 0x01
+
+/* SCSI task management defines. */
+#define LEAPRAID_TM_TASKTYPE_ABORT_TASK 0x01
+#define LEAPRAID_TM_TASKTYPE_ABRT_TASK_SET 0x02
+#define LEAPRAID_TM_TASKTYPE_TARGET_RESET 0x03
+#define LEAPRAID_TM_TASKTYPE_LOGICAL_UNIT_RESET 0x05
+#define LEAPRAID_TM_TASKTYPE_CLEAR_TASK_SET 0x06
+#define LEAPRAID_TM_TASKTYPE_QUERY_TASK 0x07
+#define LEAPRAID_TM_TASKTYPE_CLEAR_ACA 0x08
+#define LEAPRAID_TM_TASKTYPE_QUERY_TASK_SET 0x09
+#define LEAPRAID_TM_TASKTYPE_QUERY_ASYNC_EVENT 0x0A
+
+#define LEAPRAID_TM_MSGFLAGS_LINK_RESET 0x00
+#define LEAPRAID_TM_RSP_INVALID_FRAME 0x02
+
+/* SCSI enclosure processor request defines. */
+#define LEAPRAID_SEP_REQ_ACT_WRITE_STATUS 0x00
+#define LEAPRAID_SEP_REQ_FLG_DEVHDL_ADDRESS 0x00
+#define LEAPRAID_SEP_REQ_FLG_ENCLOSURE_SLOT_ADDRESS 0x01
+#define LEAPRAID_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT 0x00000040
+
+/* The capabilities of the adapter. */
+#define LEAPRAID_ADAPTER_FEATURES_CAP_ATOMIC_REQ 0x00080000
+#define LEAPRAID_ADAPTER_FEATURES_CAP_INTEGRATED_RAID 0x00001000
+
+/* Event code definitions for the firmware. */
+#define LEAPRAID_EVT_SAS_DEV_STATUS_CHANGE 0x000F
+#define LEAPRAID_EVT_SAS_TOPO_CHANGE_LIST 0x001C
+#define LEAPRAID_EVT_SAS_ENCL_DEV_STATUS_CHANGE 0x001D
+#define LEAPRAID_EVT_IR_CHANGE 0x0020
+#define LEAPRAID_EVT_TURN_ON_PFA_LED 0xFFFC
+#define LEAPRAID_EVT_SCAN_DEV_DONE 0xFFFD
+#define LEAPRAID_EVT_REMOVE_DEAD_DEV 0xFFFF
+#define LEAPRAID_MAX_EVENT_NUM 128
+
+#define LEAPRAID_EVT_SAS_DEV_STAT_RC_INTERNAL_DEV_RESET 0x08
+#define LEAPRAID_EVT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET 0x0E
+
+/* RAID configuration change event. */
+#define LEAPRAID_EVT_IR_RC_VOLUME_ADD 0x01
+#define LEAPRAID_EVT_IR_RC_VOLUME_DELETE 0x02
+#define LEAPRAID_EVT_IR_RC_PD_HIDDEN_TO_ADD 0x03
+#define LEAPRAID_EVT_IR_RC_PD_UNHIDDEN_TO_DELETE 0x04
+#define LEAPRAID_EVT_IR_RC_PD_CREATED_TO_HIDE 0x05
+#define LEAPRAID_EVT_IR_RC_PD_DELETED_TO_EXPOSE 0x06
+#define LEAPRAID_EVT_IR_RC_VOLUME_HIDE 0x0A
+#define LEAPRAID_EVT_IR_RC_VOLUME_UNHIDE 0x0B
+
+/* SAS topology change event. */
+#define LEAPRAID_EVT_SAS_TOPO_ES_NO_EXPANDER 0x00
+#define LEAPRAID_EVT_SAS_TOPO_ES_ADDED 0x01
+#define LEAPRAID_EVT_SAS_TOPO_ES_NOT_RESPONDING 0x02
+#define LEAPRAID_EVT_SAS_TOPO_ES_RESPONDING 0x03
+
+#define LEAPRAID_EVT_SAS_TOPO_RC_MASK 0x0F
+#define LEAPRAID_EVT_SAS_TOPO_RC_TARG_ADDED 0x01
+#define LEAPRAID_EVT_SAS_TOPO_RC_TARG_NOT_RESPONDING 0x02
+
+/* Enclosure device status change event. */
+#define LEAPRAID_EVT_SAS_ENCL_RC_ADDED 0x01
+#define LEAPRAID_EVT_SAS_ENCL_RC_NOT_RESPONDING 0x02
+
+/* Device type and identifiers. */
+#define LEAPRAID_DEVTYP_SEP 0x00004000
+#define LEAPRAID_DEVTYP_SSP_TGT 0x00000400
+#define LEAPRAID_DEVTYP_STP_TGT 0x00000200
+#define LEAPRAID_DEVTYP_SMP_TGT 0x00000100
+#define LEAPRAID_DEVTYP_SATA_DEV 0x00000080
+#define LEAPRAID_DEVTYP_SSP_INIT 0x00000040
+#define LEAPRAID_DEVTYP_STP_INIT 0x00000020
+#define LEAPRAID_DEVTYP_SMP_INIT 0x00000010
+#define LEAPRAID_DEVTYP_SATA_HOST 0x00000008
+
+#define LEAPRAID_DEVTYP_MASK_DEV_TYPE 0x00000007
+#define LEAPRAID_DEVTYP_NO_DEV 0x00000000
+#define LEAPRAID_DEVTYP_END_DEV 0x00000001
+#define LEAPRAID_DEVTYP_EDGE_EXPANDER 0x00000002
+#define LEAPRAID_DEVTYP_FANOUT_EXPANDER 0x00000003
+
+/* SAS control operation. */
+#define LEAPRAID_SAS_OP_PHY_LINK_RESET 0x06
+#define LEAPRAID_SAS_OP_PHY_HARD_RESET 0x07
+#define LEAPRAID_SAS_OP_SET_PARAMETER 0x0F
+
+/* Boot device defines */
+#define LEAPRAID_BOOTDEV_FORM_MASK 0x0F
+#define LEAPRAID_BOOTDEV_FORM_NONE 0x00
+#define LEAPRAID_BOOTDEV_FORM_SAS_WWID 0x05
+#define LEAPRAID_BOOTDEV_FORM_ENC_SLOT 0x06
+#define LEAPRAID_BOOTDEV_FORM_DEV_NAME 0x07
+
+/**
+ * struct leapraid_reg_base - Register layout of the LeapRAID controller
+ *
+ * @db: Doorbell register used to signal commands or status to firmware.
+ * @ws: Write sequence register for synchronizing doorbell operations.
+ * @host_diag: Diagnostic register used for status or debug reporting.
+ * @r1: Reserved.
+ * @host_int_status: Interrupt status register reporting active interrupts.
+ * @host_int_mask: Interrupt mask register enabling or disabling sources.
+ * @r2: Reserved.
+ * @rep_msg_host_idx: Reply message index for the next available reply slot.
+ * @r3: Reserved.
+ * @debug_log: DebugLog registers for firmware debug and diagnostic output.
+ * @r4: Reserved.
+ * @atomic_req_desc_post: Atomic register for single descriptor posting.
+ * @adapter_log_buf_pos: Adapter log buffer write position.
+ * @host_log_buf_pos: Host log buffer write position.
+ * @r5: Reserved.
+ * @rep_post_reg_idx: Array of reply post index registers, one per queue.
+ * The number of entries is defined by
+ * REP_POST_HOST_IDX_REG_CNT.
+ */
+struct leapraid_reg_base {
+ __le32 db;
+ __le32 ws;
+ __le32 host_diag;
+ __le32 r1[9];
+ __le32 host_int_status;
+ __le32 host_int_mask;
+ __le32 r2[4];
+ __le32 rep_msg_host_idx;
+ __le32 r3[13];
+ __le32 debug_log[LEAPRAID_DEBUGLOG_SZ_MAX];
+ __le32 r4[2];
+ __le32 atomic_req_desc_post;
+ __le32 adapter_log_buf_pos;
+ __le32 host_log_buf_pos;
+ __le32 r5[142];
+ struct leapraid_rep_post_reg_idx {
+ __le32 idx;
+ __le32 r1;
+ __le32 r2;
+ __le32 r3;
+ } rep_post_reg_idx[REP_POST_HOST_IDX_REG_CNT];
+} __packed;
+
+/**
+ * struct leapraid_atomic_req_desc - Atomic request descriptor
+ *
+ * @flg: Descriptor flag indicating the type of request (e.g. SCSI I/O).
+ * @msix_idx: MSI-X vector index used for interrupt routing.
+ * @taskid: Unique task identifier associated with this request.
+ */
+struct leapraid_atomic_req_desc {
+ u8 flg;
+ u8 msix_idx;
+ __le16 taskid;
+};
+
+/**
+ * union leapraid_rep_desc_union - Unified reply descriptor format
+ *
+ * @dflt_rep: Default reply descriptor containing basic completion info.
+ * @dflt_rep.rep_flg: Reply flag indicating reply type or status.
+ * @dflt_rep.msix_idx: MSI-X index for interrupt routing.
+ * @dflt_rep.taskid: Task identifier matching the submitted request.
+ * @r1: Reserved.
+ *
+ * @addr_rep: Address reply descriptor used when firmware returns a
+ * memory address associated with the reply.
+ * @addr_rep.rep_flg: Reply flag indicating reply type or status.
+ * @addr_rep.msix_idx: MSI-X index for interrupt routing.
+ * @addr_rep.taskid: Task identifier matching the submitted request.
+ * @addr_rep.rep_frame_addr: Physical address of the reply frame.
+ *
+ * @words: Raw 64-bit representation of the reply descriptor.
+ * @u: Alternative access using 32-bit low/high words.
+ * @u.low: Lower 32 bits of the descriptor.
+ * @u.high: Upper 32 bits of the descriptor.
+ */
+union leapraid_rep_desc_union {
+ struct leapraid_rep_desc {
+ u8 rep_flg;
+ u8 msix_idx;
+ __le16 taskid;
+ u8 r1[4];
+ } dflt_rep;
+ struct leapraid_add_rep_desc {
+ u8 rep_flg;
+ u8 msix_idx;
+ __le16 taskid;
+ __le32 rep_frame_addr;
+ } addr_rep;
+ __le64 words;
+ struct {
+ u32 low;
+ u32 high;
+ } u;
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_req - Generic request header
+ *
+ * @func_dep1: Function-dependent parameter (low 16 bits).
+ * @r1: Reserved.
+ * @func: Function code identifying the command type.
+ * @r2: Reserved.
+ */
+struct leapraid_req {
+ __le16 func_dep1;
+ u8 r1;
+ u8 func;
+ u8 r2[8];
+};
+
+/**
+ * struct leapraid_rep - Generic reply header
+ *
+ * @r1: Reserved.
+ * @msg_len: Length of the reply message in bytes.
+ * @function: Function code corresponding to the request.
+ * @r2: Reserved.
+ * @adapter_status: Status code reported by the adapter.
+ * @r3: Reserved.
+ */
+struct leapraid_rep {
+ u8 r1[2];
+ u8 msg_len;
+ u8 function;
+ u8 r2[10];
+ __le16 adapter_status;
+ u8 r3[4];
+};
+
+/**
+ * struct leapraid_sge_simple32 - 32-bit simple scatter-gather entry
+ *
+ * @flg_and_len: Combined field for flags and segment length.
+ * @addr: 32-bit physical address of the data buffer.
+ */
+struct leapraid_sge_simple32 {
+ __le32 flg_and_len;
+ __le32 addr;
+};
+
+/**
+ * struct leapraid_sge_simple64 - 64-bit simple scatter-gather entry
+ *
+ * @flg_and_len: Combined field for flags and segment length.
+ * @addr: 64-bit physical address of the data buffer.
+ */
+struct leapraid_sge_simple64 {
+ __le32 flg_and_len;
+ __le64 addr;
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_sge_simple_union - Unified 32/64-bit SGE representation
+ *
+ * @flg_and_len: Combined field for flags and segment length.
+ * @u.addr32: 32-bit address field.
+ * @u.addr64: 64-bit address field.
+ */
+struct leapraid_sge_simple_union {
+ __le32 flg_and_len;
+ union {
+ __le32 addr32;
+ __le64 addr64;
+ } __packed __aligned(4) u;
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_sge_chain_union - Chained scatter-gather entry
+ *
+ * @len: Length of the chain descriptor.
+ * @next_chain_offset: Offset to the next SGE chain.
+ * @flg: Flags indicating chain or termination properties.
+ * @u.addr32: 32-bit physical address.
+ * @u.addr64: 64-bit physical address.
+ */
+struct leapraid_sge_chain_union {
+ __le16 len;
+ u8 next_chain_offset;
+ u8 flg;
+ union {
+ __le32 addr32;
+ __le64 addr64;
+ } __packed __aligned(4) u;
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_ieee_sge_simple32 - IEEE 32-bit simple SGE format
+ *
+ * @addr: 32-bit physical address of the data buffer.
+ * @flg_and_len: Combined field for flags and data length.
+ */
+struct leapraid_ieee_sge_simple32 {
+ __le32 addr;
+ __le32 flg_and_len;
+};
+
+/**
+ * struct leapraid_ieee_sge_simple64 - IEEE 64-bit simple SGE format
+ *
+ * @addr: 64-bit physical address of the data buffer.
+ * @len: Length of the data segment.
+ * @r1: Reserved.
+ * @flg: Flags indicating transfer properties.
+ */
+struct leapraid_ieee_sge_simple64 {
+ __le64 addr;
+ __le32 len;
+ u8 r1[3];
+ u8 flg;
+} __packed __aligned(4);
+
+/**
+ * union leapraid_ieee_sge_simple_union - Unified IEEE SGE format
+ *
+ * @simple32: IEEE 32-bit simple SGE entry.
+ * @simple64: IEEE 64-bit simple SGE entry.
+ */
+union leapraid_ieee_sge_simple_union {
+ struct leapraid_ieee_sge_simple32 simple32;
+ struct leapraid_ieee_sge_simple64 simple64;
+};
+
+/**
+ * union leapraid_ieee_sge_chain_union - Unified IEEE SGE chain format
+ *
+ * @chain32: IEEE 32-bit chain SGE entry.
+ * @chain64: IEEE 64-bit chain SGE entry.
+ */
+union leapraid_ieee_sge_chain_union {
+ struct leapraid_ieee_sge_simple32 chain32;
+ struct leapraid_ieee_sge_simple64 chain64;
+};
+
+/**
+ * struct leapraid_chain64_ieee_sg - 64-bit IEEE chain SGE descriptor
+ *
+ * @addr: Physical address of the next chain segment.
+ * @len: Length of the current SGE.
+ * @r1: Reserved.
+ * @next_chain_offset: Offset to the next chain element.
+ * @flg: Flags that describe SGE attributes.
+ */
+struct leapraid_chain64_ieee_sg {
+ __le64 addr;
+ __le32 len;
+ u8 r1[2];
+ u8 next_chain_offset;
+ u8 flg;
+} __packed __aligned(4);
+
+/**
+ * union leapraid_ieee_sge_io_union - IEEE-style SGE union for I/O
+ *
+ * @ieee_simple: Simple IEEE SGE descriptor.
+ * @ieee_chain: IEEE chain SGE descriptor.
+ */
+union leapraid_ieee_sge_io_union {
+ struct leapraid_ieee_sge_simple64 ieee_simple;
+ struct leapraid_chain64_ieee_sg ieee_chain;
+};
+
+/**
+ * union leapraid_simple_sge_union - Union of simple SGE descriptors
+ *
+ * @leapraid_simple: LeapRAID simple SGE.
+ * @ieee_simple: IEEE-style simple SGE.
+ */
+union leapraid_simple_sge_union {
+ struct leapraid_sge_simple_union leapraid_simple;
+ union leapraid_ieee_sge_simple_union ieee_simple;
+};
+
+/**
+ * union leapraid_sge_io_union - Combined SGE union for all I/O types
+ *
+ * @leapraid_simple: LeapRAID simple SGE format.
+ * @leapraid_chain: LeapRAID chain SGE format.
+ * @ieee_simple: IEEE simple SGE format.
+ * @ieee_chain: IEEE chain SGE format.
+ */
+union leapraid_sge_io_union {
+ struct leapraid_sge_simple_union leapraid_simple;
+ struct leapraid_sge_chain_union leapraid_chain;
+ union leapraid_ieee_sge_simple_union ieee_simple;
+ union leapraid_ieee_sge_chain_union ieee_chain;
+};
+
+/**
+ * struct leapraid_cfg_pg_header - Standard configuration page header
+ *
+ * @r1: Reserved.
+ * @page_len: Length of the page in 4-byte units.
+ * @page_num: Page number.
+ * @page_type: Page type.
+ */
+struct leapraid_cfg_pg_header {
+ u8 r1;
+ u8 page_len;
+ u8 page_num;
+ u8 page_type;
+};
+
+/**
+ * struct leapraid_cfg_ext_pg_header - Extended configuration page header
+ *
+ * @r1: Reserved.
+ * @r2: Reserved.
+ * @page_num: Page number.
+ * @page_type: Page type.
+ * @ext_page_len: Extended page length.
+ * @ext_page_type: Extended page type.
+ * @r3: Reserved.
+ */
+struct leapraid_cfg_ext_pg_header {
+ u8 r1;
+ u8 r2;
+ u8 page_num;
+ u8 page_type;
+ __le16 ext_page_len;
+ u8 ext_page_type;
+ u8 r3;
+};
+
+/**
+ * struct leapraid_cfg_req - Configuration request message
+ *
+ * @action: Requested action type.
+ * @sgl_flag: SGL flag field.
+ * @chain_offset: Offset to next chain SGE.
+ * @func: Function code.
+ * @ext_page_len: Extended page length.
+ * @ext_page_type: Extended page type.
+ * @msg_flag: Message flags.
+ * @r1: Reserved.
+ * @header: Configuration page header.
+ * @page_addr: Address of the page buffer.
+ * @page_buf_sge: SGE describing the page buffer.
+ */
+struct leapraid_cfg_req {
+ u8 action;
+ u8 sgl_flag;
+ u8 chain_offset;
+ u8 func;
+ __le16 ext_page_len;
+ u8 ext_page_type;
+ u8 msg_flag;
+ u8 r1[12];
+ struct leapraid_cfg_pg_header header;
+ __le32 page_addr;
+ union leapraid_sge_io_union page_buf_sge;
+};
+
+/**
+ * struct leapraid_cfg_rep - Configuration reply message
+ *
+ * @action: Action type from the request.
+ * @r1: Reserved.
+ * @msg_len: Message length in bytes.
+ * @func: Function code.
+ * @ext_page_len: Extended page length.
+ * @ext_page_type: Extended page type.
+ * @msg_flag: Message flags.
+ * @r2: Reserved.
+ * @adapter_status: Adapter status code.
+ * @r3: Reserved.
+ * @header: Configuration page header.
+ */
+struct leapraid_cfg_rep {
+ u8 action;
+ u8 r1;
+ u8 msg_len;
+ u8 func;
+ __le16 ext_page_len;
+ u8 ext_page_type;
+ u8 msg_flag;
+ u8 r2[6];
+ __le16 adapter_status;
+ u8 r3[4];
+ struct leapraid_cfg_pg_header header;
+};
+
+/**
+ * struct leapraid_boot_dev_format_sas_wwid - Boot device identified by wwid
+ *
+ * @sas_addr: SAS address of the device.
+ * @lun: Logical unit number.
+ * @r1: Reserved.
+ */
+struct leapraid_boot_dev_format_sas_wwid {
+ __le64 sas_addr;
+ u8 lun[8];
+ u8 r1[8];
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_boot_dev_format_enc_slot - identified by enclosure
+ *
+ * @enc_lid: Enclosure logical ID.
+ * @r1: Reserved.
+ * @slot_num: Slot number in the enclosure.
+ * @r2: Reserved.
+ */
+struct leapraid_boot_dev_format_enc_slot {
+ __le64 enc_lid;
+ u8 r1[8];
+ __le16 slot_num;
+ u8 r2[6];
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_boot_dev_format_dev_name - Boot device by device name
+ *
+ * @dev_name: Device name identifier.
+ * @lun: Logical unit number.
+ * @r1: Reserved.
+ */
+struct leapraid_boot_dev_format_dev_name {
+ __le64 dev_name;
+ u8 lun[8];
+ u8 r1[8];
+} __packed __aligned(4);
+
+/**
+ * union leapraid_boot_dev_format - Boot device format union
+ *
+ * @sas_wwid: Format using SAS WWID and LUN.
+ * @enc_slot: Format using enclosure slot and ID.
+ * @dev_name: Format using device name and LUN.
+ */
+union leapraid_boot_dev_format {
+ struct leapraid_boot_dev_format_sas_wwid sas_wwid;
+ struct leapraid_boot_dev_format_enc_slot enc_slot;
+ struct leapraid_boot_dev_format_dev_name dev_name;
+};
+
+/**
+ * struct leapraid_manufacturing_p0 - Manufacturing configuration page 0
+ *
+ * @header: Configuration page header.
+ * @chip_name: Chip name as a 16-byte ASCII string.
+ * @chip_revision: Chip revision as an 8-byte ASCII string.
+ * @board_name: Board name as a 16-byte ASCII string.
+ * @board_assembly: Board assembly as a 16-byte ASCII string.
+ * @board_tracer_number: Board tracer number as a 16-byte ASCII string.
+ */
+struct leapraid_manufacturing_p0 {
+ struct leapraid_cfg_pg_header header;
+ u8 chip_name[16];
+ u8 chip_revision[8];
+ u8 board_name[16];
+ u8 board_assembly[16];
+ u8 board_tracer_number[16];
+};
+
+/**
+ * struct leapraid_bios_page2 - BIOS configuration page 2
+ *
+ * @header: Configuration page header.
+ * @r1: Reserved.
+ * @requested_boot_dev_form: Format type of the requested boot device.
+ * @r2: Reserved.
+ * @requested_boot_dev: Boot device requested by BIOS or user.
+ * @requested_alt_boot_dev_form: Format of the alternate boot device.
+ * @r3: Reserved.
+ * @requested_alt_boot_dev: Alternate boot device requested.
+ * @current_boot_dev_form: Format type of the active boot device.
+ * @r4: Reserved.
+ * @current_boot_dev: Currently active boot device in use.
+ */
+struct leapraid_bios_page2 {
+ struct leapraid_cfg_pg_header header;
+ u8 r1[24];
+ u8 requested_boot_dev_form;
+ u8 r2[3];
+ union leapraid_boot_dev_format requested_boot_dev;
+ u8 requested_alt_boot_dev_form;
+ u8 r3[3];
+ union leapraid_boot_dev_format requested_alt_boot_dev;
+ u8 current_boot_dev_form;
+ u8 r4[3];
+ union leapraid_boot_dev_format current_boot_dev;
+};
+
+/**
+ * struct leapraid_bios_page3 - BIOS configuration page 3
+ *
+ * @header: Configuration page header.
+ * @r1: Reserved.
+ * @bios_version: BIOS firmware version number.
+ * @r2: Reserved.
+ */
+struct leapraid_bios_page3 {
+ struct leapraid_cfg_pg_header header;
+ u8 r1[4];
+ __le32 bios_version;
+ u8 r2[84];
+};
+
+/**
+ * struct leapraid_raidvol0_phys_disk - Physical disk in RAID volume
+ *
+ * @r1: Reserved.
+ * @phys_disk_num: Physical disk number within the RAID volume.
+ * @r2: Reserved.
+ */
+struct leapraid_raidvol0_phys_disk {
+ u8 r1[2];
+ u8 phys_disk_num;
+ u8 r2;
+};
+
+/**
+ * struct leapraid_raidvol_p0 - RAID volume configuration page 0
+ *
+ * @header: Configuration page header.
+ * @dev_hdl: Device handle for the RAID volume.
+ * @volume_state: State of the RAID volume.
+ * @volume_type: RAID type.
+ * @r1: Reserved.
+ * @num_phys_disks: Number of physical disks in the volume.
+ * @r2: Reserved.
+ * @phys_disk: Array of physical disks in this volume.
+ */
+struct leapraid_raidvol_p0 {
+ struct leapraid_cfg_pg_header header;
+ __le16 dev_hdl;
+ u8 volume_state;
+ u8 volume_type;
+ u8 r1[28];
+ u8 num_phys_disks;
+ u8 r2[3];
+ struct leapraid_raidvol0_phys_disk phys_disk[];
+};
+
+/**
+ * struct leapraid_raidvol_p1 - RAID volume configuration page 1
+ *
+ * @header: Configuration page header.
+ * @dev_hdl: Device handle of the RAID volume.
+ * @r1: Reserved.
+ * @wwid: World-wide identifier for the volume.
+ * @r2: Reserved.
+ */
+struct leapraid_raidvol_p1 {
+ struct leapraid_cfg_pg_header header;
+ __le16 dev_hdl;
+ u8 r1[42];
+ __le64 wwid;
+ u8 r2[8];
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_raidpd_p0 - Physical disk configuration page 0
+ *
+ * @header: Configuration page header.
+ * @dev_hdl: Device handle of the physical disk.
+ * @r1: Reserved.
+ * @phys_disk_num: Physical disk number.
+ * @r2: Reserved.
+ */
+struct leapraid_raidpd_p0 {
+ struct leapraid_cfg_pg_header header;
+ __le16 dev_hdl;
+ u8 r1;
+ u8 phys_disk_num;
+ u8 r2[112];
+};
+
+/**
+ * struct leapraid_sas_io_unit0_phy_info - PHY info for SAS I/O unit
+ *
+ * @port: Port number the PHY belongs to.
+ * @port_flg: Flags describing port status.
+ * @phy_flg: Flags describing PHY status.
+ * @neg_link_rate: Negotiated link rate of the PHY.
+ * @controller_phy_dev_info: Controller PHY device info.
+ * @attached_dev_hdl: Handle of attached device.
+ * @controller_dev_hdl: Handle of the controller device.
+ * @r1: Reserved.
+ */
+struct leapraid_sas_io_unit0_phy_info {
+ u8 port;
+ u8 port_flg;
+ u8 phy_flg;
+ u8 neg_link_rate;
+ __le32 controller_phy_dev_info;
+ __le16 attached_dev_hdl;
+ __le16 controller_dev_hdl;
+ u8 r1[8];
+};
+
+/**
+ * struct leapraid_sas_io_unit_p0 - SAS I/O unit configuration page 0
+ *
+ * @header: Extended configuration page header.
+ * @r1: Reserved.
+ * @phy_num: Number of PHYs in this unit.
+ * @r2: Reserved.
+ * @phy_info: Array of PHY information.
+ */
+struct leapraid_sas_io_unit_p0 {
+ struct leapraid_cfg_ext_pg_header header;
+ u8 r1[4];
+ u8 phy_num;
+ u8 r2[3];
+ struct leapraid_sas_io_unit0_phy_info phy_info[];
+};
+
+/**
+ * struct leapraid_exp_p0 - SAS expander page 0
+ *
+ * @header: Extended page header.
+ * @physical_port: Physical port number.
+ * @r1: Reserved.
+ * @enc_hdl: Enclosure handle.
+ * @sas_address: SAS address of the expander.
+ * @r2: Reserved.
+ * @dev_hdl: Device handle of this expander.
+ * @parent_dev_hdl: Device handle of parent expander.
+ * @r3: Reserved.
+ * @phy_num: Number of PHYs.
+ * @r4: Reserved.
+ */
+struct leapraid_exp_p0 {
+ struct leapraid_cfg_ext_pg_header header;
+ u8 physical_port;
+ u8 r1;
+ __le16 enc_hdl;
+ __le64 sas_address;
+ u8 r2[4];
+ __le16 dev_hdl;
+ __le16 parent_dev_hdl;
+ u8 r3[4];
+ u8 phy_num;
+ u8 r4[27];
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_exp_p1 - SAS expander page 1
+ *
+ * @header: Extended page header.
+ * @r1: Reserved.
+ * @p_link_rate: PHY link rate.
+ * @hw_link_rate: Hardware supported link rate.
+ * @attached_dev_hdl: Attached device handle.
+ * @r2: Reserved.
+ * @neg_link_rate: Negotiated link rate.
+ * @r3: Reserved.
+ */
+struct leapraid_exp_p1 {
+ struct leapraid_cfg_ext_pg_header header;
+ u8 r1[8];
+ u8 p_link_rate;
+ u8 hw_link_rate;
+ __le16 attached_dev_hdl;
+ u8 r2[11];
+ u8 neg_link_rate;
+ u8 r3[12];
+};
+
+/**
+ * struct leapraid_sas_dev_p0 - SAS device page 0
+ *
+ * @header: Extended configuration page header.
+ * @slot: Slot number.
+ * @enc_hdl: Enclosure handle.
+ * @sas_address: SAS address.
+ * @parent_dev_hdl: Parent device handle.
+ * @phy_num: Number of PHYs.
+ * @r1: Reserved.
+ * @dev_hdl: Device handle.
+ * @r2: Reserved.
+ * @dev_info: Device information.
+ * @flg: Flags.
+ * @physical_port: Physical port number.
+ * @max_port_connections: Maximum port connections.
+ * @dev_name: Device name.
+ * @port_groups: Number of port groups.
+ * @r3: Reserved.
+ * @enc_level: Enclosure level.
+ * @connector_name: Connector identifier.
+ * @r4: Reserved.
+ */
+struct leapraid_sas_dev_p0 {
+ struct leapraid_cfg_ext_pg_header header;
+ __le16 slot;
+ __le16 enc_hdl;
+ __le64 sas_address;
+ __le16 parent_dev_hdl;
+ u8 phy_num;
+ u8 r1;
+ __le16 dev_hdl;
+ u8 r2[2];
+ __le32 dev_info;
+ __le16 flg;
+ u8 physical_port;
+ u8 max_port_connections;
+ __le64 dev_name;
+ u8 port_groups;
+ u8 r3[2];
+ u8 enc_level;
+ u8 connector_name[LEAPRAID_SAS_DEV_P0_CON_NAME_LEN];
+ u8 r4[4];
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_sas_phy_p0 - SAS PHY configuration page 0
+ *
+ * @header: Extended configuration page header.
+ * @r1: Reserved.
+ * @attached_dev_hdl: Handle of attached device.
+ * @r2: Reserved.
+ * @p_link_rate: PHY link rate.
+ * @hw_link_rate: Hardware supported link rate.
+ * @r3: Reserved.
+ * @phy_info: PHY information.
+ * @neg_link_rate: Negotiated link rate.
+ * @r4: Reserved.
+ */
+struct leapraid_sas_phy_p0 {
+ struct leapraid_cfg_ext_pg_header header;
+ u8 r1[4];
+ __le16 attached_dev_hdl;
+ u8 r2[6];
+ u8 p_link_rate;
+ u8 hw_link_rate;
+ u8 r3[2];
+ __le32 phy_info;
+ u8 neg_link_rate;
+ u8 r4[3];
+};
+
+/**
+ * struct leapraid_enc_p0 - SAS enclosure page 0
+ *
+ * @header: Extended configuration page header.
+ * @r1: Reserved.
+ * @enc_lid: Enclosure logical ID.
+ * @r2: Reserved.
+ * @enc_hdl: Enclosure handle.
+ * @r3: Reserved.
+ */
+struct leapraid_enc_p0 {
+ struct leapraid_cfg_ext_pg_header header;
+ u8 r1[4];
+ __le64 enc_lid;
+ u8 r2[2];
+ __le16 enc_hdl;
+ u8 r3[15];
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_raid_cfg_p0_element - RAID configuration element
+ *
+ * @element_flg: Element flags.
+ * @vol_dev_hdl: Volume device handle.
+ * @r1: Reserved.
+ * @phys_disk_dev_hdl: Physical disk device handle.
+ */
+struct leapraid_raid_cfg_p0_element {
+ __le16 element_flg;
+ __le16 vol_dev_hdl;
+ u8 r1[2];
+ __le16 phys_disk_dev_hdl;
+};
+
+/**
+ * struct leapraid_raid_cfg_p0 - RAID configuration page 0
+ *
+ * @header: Extended configuration page header.
+ * @r1: Reserved.
+ * @cfg_num: Configuration number.
+ * @r2: Reserved.
+ * @elements_num: Number of RAID elements.
+ * @r3: Reserved.
+ * @cfg_element: Array of RAID elements.
+ */
+struct leapraid_raid_cfg_p0 {
+ struct leapraid_cfg_ext_pg_header header;
+ u8 r1[3];
+ u8 cfg_num;
+ u8 r2[32];
+ u8 elements_num;
+ u8 r3[3];
+ struct leapraid_raid_cfg_p0_element cfg_element[];
+};
+
+/**
+ * union leapraid_mpi_scsi_io_cdb_union - SCSI I/O CDB or simple SGE
+ *
+ * @cdb32: 32-byte SCSI command descriptor block.
+ * @sge: Simple SGE format.
+ */
+union leapraid_mpi_scsi_io_cdb_union {
+ u8 cdb32[32];
+ struct leapraid_sge_simple_union sge;
+};
+
+/**
+ * struct leapraid_mpi_scsiio_req - MPI SCSI I/O request
+ *
+ * @dev_hdl: Device handle for the target.
+ * @chain_offset: Offset for chained SGE.
+ * @func: Function code.
+ * @r1: Reserved.
+ * @msg_flg: Message flags.
+ * @r2: Reserved.
+ * @sense_buffer_low_add: Lower 32-bit address of sense buffer.
+ * @dma_flag: DMA flags.
+ * @r3: Reserved.
+ * @sense_buffer_len: Sense buffer length.
+ * @r4: Reserved.
+ * @sgl_offset0..3: SGL offsets.
+ * @skip_count: Bytes to skip before transfer.
+ * @data_len: Length of data transfer.
+ * @bi_dir_data_len: Bi-directional transfer length.
+ * @io_flg: I/O flags.
+ * @eedp_flag: End-to-end data protection flags.
+ * @eedp_block_size: End-to-end data protection block size.
+ * @r5: Reserved.
+ * @secondary_ref_tag: Secondary reference tag.
+ * @secondary_app_tag: Secondary application tag.
+ * @app_tag_trans_mask: Application tag mask.
+ * @lun: Logical Unit Number.
+ * @ctrl: Control flags.
+ * @cdb: SCSI Command Descriptor Block or simple SGE.
+ * @sgl: Scatter-gather list.
+ */
+struct leapraid_mpi_scsiio_req {
+ __le16 dev_hdl;
+ u8 chain_offset;
+ u8 func;
+ u8 r1[3];
+ u8 msg_flg;
+ u8 r2[4];
+ __le32 sense_buffer_low_add;
+ u8 dma_flag;
+ u8 r3;
+ u8 sense_buffer_len;
+ u8 r4;
+ u8 sgl_offset0;
+ u8 sgl_offset1;
+ u8 sgl_offset2;
+ u8 sgl_offset3;
+ __le32 skip_count;
+ __le32 data_len;
+ __le32 bi_dir_data_len;
+ __le16 io_flg;
+ __le16 eedp_flag;
+ __le16 eedp_block_size;
+ u8 r5[2];
+ __le32 secondary_ref_tag;
+ __le16 secondary_app_tag;
+ __le16 app_tag_trans_mask;
+ u8 lun[8];
+ __le32 ctrl;
+ union leapraid_mpi_scsi_io_cdb_union cdb;
+ union leapraid_sge_io_union sgl;
+};
+
+/**
+ * union leapraid_scsi_io_cdb_union - SCSI I/O CDB or IEEE simple SGE
+ *
+ * @cdb32: 32-byte SCSI CDB.
+ * @sge: IEEE simple 64-bit SGE.
+ */
+union leapraid_scsi_io_cdb_union {
+ u8 cdb32[32];
+ struct leapraid_ieee_sge_simple64 sge;
+};
+
+/**
+ * struct leapraid_scsiio_req - SCSI I/O request
+ *
+ * @dev_hdl: Device handle.
+ * @chain_offset: Offset for chained SGE.
+ * @func: Function code.
+ * @r1: Reserved.
+ * @msg_flg: Message flags.
+ * @r2: Reserved.
+ * @sense_buffer_low_add: Lower 32-bit address of sense buffer.
+ * @dma_flag: DMA flag.
+ * @r3: Reserved.
+ * @sense_buffer_len: Sense buffer length.
+ * @r4: Reserved.
+ * @sgl_offset0-3: SGL offsets.
+ * @skip_count: Bytes to skip before transfer.
+ * @data_len: Length of data transfer.
+ * @bi_dir_data_len: Bi-directional transfer length.
+ * @io_flg: I/O flags.
+ * @eedp_flag: End-to-end data protection flags.
+ * @eedp_block_size: End-to-end data protection block size.
+ * @r5: Reserved.
+ * @secondary_ref_tag: Secondary reference tag.
+ * @secondary_app_tag: Secondary application tag.
+ * @app_tag_trans_mask: Application tag mask.
+ * @lun: Logical Unit Number.
+ * @ctrl: Control flags.
+ * @cdb: SCSI Command Descriptor Block or simple SGE.
+ * @sgl: Scatter-gather list.
+ */
+struct leapraid_scsiio_req {
+ __le16 dev_hdl;
+ u8 chain_offset;
+ u8 func;
+ u8 r1[3];
+ u8 msg_flg;
+ u8 r2[4];
+ __le32 sense_buffer_low_add;
+ u8 dma_flag;
+ u8 r3;
+ u8 sense_buffer_len;
+ u8 r4;
+ u8 sgl_offset0;
+ u8 sgl_offset1;
+ u8 sgl_offset2;
+ u8 sgl_offset3;
+ __le32 skip_count;
+ __le32 data_len;
+ __le32 bi_dir_data_len;
+ __le16 io_flg;
+ __le16 eedp_flag;
+ __le16 eedp_block_size;
+ u8 r5[2];
+ __le32 secondary_ref_tag;
+ __le16 secondary_app_tag;
+ __le16 app_tag_trans_mask;
+ u8 lun[8];
+ __le32 ctrl;
+ union leapraid_scsi_io_cdb_union cdb;
+ union leapraid_ieee_sge_io_union sgl;
+};
+
+/**
+ * struct leapraid_scsiio_rep - SCSI I/O response
+ *
+ * @dev_hdl: Device handle.
+ * @msg_len: Length of response message.
+ * @func: Function code.
+ * @r1: Reserved.
+ * @msg_flg: Message flags.
+ * @r2: Reserved.
+ * @scsi_status: SCSI status.
+ * @scsi_state: SCSI state.
+ * @adapter_status: Adapter status.
+ * @r3: Reserved.
+ * @transfer_count: Number of bytes transferred.
+ * @sense_count: Number of sense bytes.
+ * @resp_info: Additional response info.
+ * @task_tag: Task identifier.
+ * @scsi_status_qualifier: SCSI status qualifier.
+ * @bi_dir_trans_count: Bi-directional transfer count.
+ * @r4: Reserved.
+ */
+struct leapraid_scsiio_rep {
+ __le16 dev_hdl;
+ u8 msg_len;
+ u8 func;
+ u8 r1[3];
+ u8 msg_flg;
+ u8 r2[4];
+ u8 scsi_status;
+ u8 scsi_state;
+ __le16 adapter_status;
+ u8 r3[4];
+ __le32 transfer_count;
+ __le32 sense_count;
+ __le32 resp_info;
+ __le16 task_tag;
+ __le16 scsi_status_qualifier;
+ __le32 bi_dir_trans_count;
+ __le32 r4[3];
+};
+
+/**
+ * struct leapraid_scsi_tm_req - SCSI Task Management request
+ *
+ * @dev_hdl: Device handle.
+ * @chain_offset: Offset for chained SGE.
+ * @func: Function code.
+ * @r1: Reserved.
+ * @task_type: Task management function type.
+ * @r2: Reserved.
+ * @msg_flg: Message flags.
+ * @r3: Reserved.
+ * @lun: Logical Unit Number.
+ * @r4: Reserved.
+ * @task_mid: Task identifier.
+ * @r5: Reserved.
+ */
+struct leapraid_scsi_tm_req {
+ __le16 dev_hdl;
+ u8 chain_offset;
+ u8 func;
+ u8 r1;
+ u8 task_type;
+ u8 r2;
+ u8 msg_flg;
+ u8 r3[4];
+ u8 lun[8];
+ u8 r4[28];
+ __le16 task_mid;
+ u8 r5[2];
+};
+
+/**
+ * struct leapraid_scsi_tm_rep - SCSI Task Management response
+ *
+ * @dev_hdl: Device handle.
+ * @msg_len: Length of response message.
+ * @func: Function code.
+ * @resp_code: Response code.
+ * @task_type: Task management type.
+ * @r1: Reserved.
+ * @msg_flag: Message flags.
+ * @r2: Reserved.
+ * @adapter_status: Adapter status.
+ * @r3: Reserved.
+ * @termination_count: Count of terminated tasks.
+ * @response_info: Additional response info.
+ */
+struct leapraid_scsi_tm_rep {
+ __le16 dev_hdl;
+ u8 msg_len;
+ u8 func;
+ u8 resp_code;
+ u8 task_type;
+ u8 r1;
+ u8 msg_flag;
+ u8 r2[6];
+ __le16 adapter_status;
+ u8 r3[4];
+ __le32 termination_count;
+ __le32 response_info;
+};
+
+/**
+ * struct leapraid_sep_req - SEP (SCSI Enclosure Processor) request
+ *
+ * @dev_hdl: Device handle.
+ * @chain_offset: Offset for chained SGE.
+ * @func: Function code.
+ * @act: Action to perform.
+ * @flg: Flags.
+ * @r1: Reserved.
+ * @msg_flag: Message flags.
+ * @r2: Reserved.
+ * @slot_status: Slot status.
+ * @r3: Reserved.
+ * @slot: Slot number.
+ * @enc_hdl: Enclosure handle.
+ */
+struct leapraid_sep_req {
+ __le16 dev_hdl;
+ u8 chain_offset;
+ u8 func;
+ u8 act;
+ u8 flg;
+ u8 r1;
+ u8 msg_flag;
+ u8 r2[4];
+ __le32 slot_status;
+ u8 r3[12];
+ __le16 slot;
+ __le16 enc_hdl;
+};
+
+/**
+ * struct leapraid_sep_rep - SEP response
+ *
+ * @dev_hdl: Device handle.
+ * @msg_len: Message length.
+ * @func: Function code.
+ * @act: Action performed.
+ * @flg: Flags.
+ * @msg_flag: Message flags.
+ * @r1: Reserved.
+ * @adapter_status: Adapter status.
+ * @r2: Reserved.
+ * @slot_status: Slot status.
+ * @r3: Reserved.
+ * @slot: Slot number.
+ * @enc_hdl: Enclosure handle.
+ */
+struct leapraid_sep_rep {
+ __le16 dev_hdl;
+ u8 msg_len;
+ u8 func;
+ u8 act;
+ u8 flg;
+ u8 r1;
+ u8 msg_flag;
+ u8 r2[6];
+ __le16 adapter_status;
+ u8 r3[4];
+ __le32 slot_status;
+ u8 r4[4];
+ __le16 slot;
+ __le16 enc_hdl;
+};
+
+/**
+ * struct leapraid_adapter_init_req - Adapter initialization request
+ *
+ * @who_init: Initiator of the initialization.
+ * @r1: Reserved.
+ * @chain_offset: Chain offset.
+ * @func: Function code.
+ * @r2: Reserved.
+ * @msg_flg: Message flags.
+ * @r3: Reserved.
+ * @msg_ver: Message version.
+ * @header_ver: Header version.
+ * @host_buf_addr: Host buffer address (non adapter-ref).
+ * @r4: Reserved.
+ * @host_buf_size: Host buffer size (non adapter-ref).
+ * @host_msix_vectors: Number of host MSI-X vectors.
+ * @r6: Reserved.
+ * @req_frame_size: Request frame size.
+ * @rep_desc_qd: Reply descriptor queue depth.
+ * @rep_msg_qd: Reply message queue depth.
+ * @sense_buffer_add_high: High 32-bit of sense buffer address.
+ * @rep_msg_dma_high: High 32-bit of reply message DMA address.
+ * @task_desc_base_addr: Base address of task descriptors.
+ * @rep_desc_q_arr_addr: Address of reply descriptor queue array.
+ * @rep_msg_addr_dma: Reply message DMA address.
+ * @time_stamp: Timestamp.
+ */
+struct leapraid_adapter_init_req {
+ u8 who_init;
+ u8 r1;
+ u8 chain_offset;
+ u8 func;
+ u8 r2[3];
+ u8 msg_flg;
+ __le32 driver_ver;
+ __le16 msg_ver;
+ __le16 header_ver;
+ __le32 host_buf_addr;
+ u8 r4[2];
+ u8 host_buf_size;
+ u8 host_msix_vectors;
+ u8 r6[2];
+ __le16 req_frame_size;
+ __le16 rep_desc_qd;
+ __le16 rep_msg_qd;
+ __le32 sense_buffer_add_high;
+ __le32 rep_msg_dma_high;
+ __le64 task_desc_base_addr;
+ __le64 rep_desc_q_arr_addr;
+ __le64 rep_msg_addr_dma;
+ __le64 time_stamp;
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_rep_desc_q_arr - Reply descriptor queue array
+ *
+ * @rep_desc_base_addr: Base address of the reply descriptors.
+ * @r1: Reserved.
+ */
+struct leapraid_rep_desc_q_arr {
+ __le64 rep_desc_base_addr;
+ __le64 r1;
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_adapter_init_rep - Adapter initialization reply
+ *
+ * @who_init: Initiator of the initialization.
+ * @r1: Reserved.
+ * @msg_len: Length of reply message.
+ * @func: Function code.
+ * @r2: Reserved.
+ * @msg_flag: Message flags.
+ * @r3: Reserved.
+ * @adapter_status: Adapter status.
+ * @r4: Reserved.
+ */
+struct leapraid_adapter_init_rep {
+ u8 who_init;
+ u8 r1;
+ u8 msg_len;
+ u8 func;
+ u8 r2[3];
+ u8 msg_flag;
+ u8 r3[6];
+ __le16 adapter_status;
+ u8 r4[4];
+};
+
+/**
+ * struct leapraid_adapter_log_req - Adapter log request
+ *
+ * @action: Action code.
+ * @type: Log type.
+ * @chain_offset: Offset for chained SGE.
+ * @func: Function code.
+ * r1: Reserved.
+ * @msg_flag: Message flags.
+ * r2: Reserved.
+ * @mbox: Mailbox for command-specific parameters.
+ * @sge: Scatter-gather entry for data buffer.
+ */
+struct leapraid_adapter_log_req {
+ u8 action;
+ u8 type;
+ u8 chain_offset;
+ u8 func;
+ u8 r1[3];
+ u8 msg_flag;
+ u8 r2[4];
+ union {
+ u8 b[12];
+ __le16 s[6];
+ __le32 w[3];
+ } mbox;
+ struct leapraid_sge_simple64 sge;
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_adapter_log_rep - Adapter log reply
+ *
+ * @action: Action code echoed.
+ * @type: Log type echoed.
+ * @msg_len: Length of message.
+ * @func: Function code.
+ * @r1: Reserved.
+ * @msg_flag: Message flags.
+ * @r2: Reserved.
+ * @adapter_status: Status returned by adapter.
+ */
+struct leapraid_adapter_log_rep {
+ u8 action;
+ u8 type;
+ u8 msg_len;
+ u8 func;
+ u8 r1[3];
+ u8 msg_flag;
+ u8 r2[6];
+ __le16 adapter_status;
+};
+
+/**
+ * struct leapraid_adapter_features_req - Request adapter features
+ *
+ * @r1: Reserved.
+ * @chain_offset: Offset for chained SGE.
+ * @func: Function code.
+ * @r2: Reserved.
+ * @msg_flag: Message flags.
+ * @r3: Reserved.
+ */
+struct leapraid_adapter_features_req {
+ u8 r1[2];
+ u8 chain_offset;
+ u8 func;
+ u8 r2[3];
+ u8 msg_flag;
+ u8 r3[4];
+};
+
+/**
+ * struct leapraid_adapter_features_rep - Adapter features reply
+ *
+ * @msg_ver: Message version.
+ * @msg_len: Length of reply message.
+ * @func: Function code.
+ * @header_ver: Header version.
+ * @r1: Reserved.
+ * @msg_flag: Message flags.
+ * @r2: Reserved.
+ * @adapter_status: Adapter status.
+ * @r3: Reserved.
+ * @who_init: Who initialized the adapter.
+ * @r4: Reserved.
+ * @max_msix_vectors: Max MSI-X vectors supported.
+ * @req_slot: Number of request slots.
+ * @r5: Reserved.
+ * @adapter_caps: Adapter capabilities.
+ * @fw_version: Firmware version.
+ * @sas_wide_max_qdepth: Max wide SAS queue depth.
+ * @sas_narrow_max_qdepth: Max narrow SAS queue depth.
+ * @r6: Reserved.
+ * @hp_slot: Number of high-priority slots.
+ * @r7: Reserved.
+ * @max_volumes: Maximum supported volumes.
+ * @max_dev_hdl: Maximum device handle.
+ * @r8: Reserved.
+ * @min_dev_hdl: Minimum device handle.
+ * @r9: Reserved.
+ */
+struct leapraid_adapter_features_rep {
+ __le16 msg_ver;
+ u8 msg_len;
+ u8 func;
+ u16 header_ver;
+ u8 r1;
+ u8 msg_flag;
+ u8 r2[6];
+ u16 adapter_status;
+ u8 r3[4];
+ u8 sata_max_qdepth;
+ u8 who_init;
+ u8 r4;
+ u8 max_msix_vectors;
+ __le16 req_slot;
+ __le16 product_id;
+ __le32 adapter_caps;
+ __le32 fw_version;
+ __le16 sas_wide_max_qdepth;
+ __le16 sas_narrow_max_qdepth;
+ u8 r6[10];
+ __le16 hp_slot;
+ u8 r7[3];
+ u8 max_volumes;
+ __le16 max_dev_hdl;
+ u8 r8[2];
+ __le16 min_dev_hdl;
+ u8 r9[6];
+};
+
+/**
+ * struct leapraid_scan_dev_req - Request to scan devices
+ *
+ * @r1: Reserved.
+ * @chain_offset: Offset for chained SGE.
+ * @func: Function code.
+ * @r2: Reserved.
+ * @msg_flag: Message flags.
+ * @r3: Reserved.
+ */
+struct leapraid_scan_dev_req {
+ u8 r1[2];
+ u8 chain_offset;
+ u8 func;
+ u8 r2[3];
+ u8 msg_flag;
+ u8 r3[4];
+};
+
+/**
+ * struct leapraid_scan_dev_rep - Scan devices reply
+ *
+ * @r1: Reserved.
+ * @msg_len: Length of message.
+ * @func: Function code.
+ * @r2: Reserved.
+ * @msg_flag: Message flags.
+ * @r3: Reserved.
+ * @adapter_status: Adapter status.
+ * @r4: Reserved.
+ */
+struct leapraid_scan_dev_rep {
+ u8 r1[2];
+ u8 msg_len;
+ u8 func;
+ u8 r2[3];
+ u8 msg_flag;
+ u8 r3[6];
+ __le16 adapter_status;
+ u8 r4[4];
+};
+
+/**
+ * struct leapraid_evt_notify_req - Event notification request
+ *
+ * @r1: Reserved.
+ * @chain_offset: Offset for chained SGE.
+ * @func: Function code.
+ * @r2: Reserved.
+ * @msg_flag: Message flags.
+ * @r3: Reserved.
+ * @evt_masks: Event masks to enable notifications.
+ * @r4: Reserved.
+ */
+struct leapraid_evt_notify_req {
+ u8 r1[2];
+ u8 chain_offset;
+ u8 func;
+ u8 r2[3];
+ u8 msg_flag;
+ u8 r3[12];
+ __le32 evt_masks[4];
+ u8 r4[8];
+};
+
+/**
+ * struct leapraid_evt_notify_rep - Event notification reply
+ *
+ * @evt_data_len: Length of event data.
+ * @msg_len: Length of message.
+ * @func: Function code.
+ * @r1: Reserved.
+ * @r2: Reserved.
+ * @msg_flag: Message flags.
+ * @r3: Reserved.
+ * @adapter_status: Adapter status.
+ * @r4: Reserved.
+ * @evt: Event code.
+ * @r5: Reserved.
+ * @evt_data: Event data array.
+ */
+struct leapraid_evt_notify_rep {
+ __le16 evt_data_len;
+ u8 msg_len;
+ u8 func;
+ u8 r1[2];
+ u8 r2;
+ u8 msg_flag;
+ u8 r3[6];
+ __le16 adapter_status;
+ u8 r4[4];
+ __le16 evt;
+ u8 r5[6];
+ __le32 evt_data[];
+};
+
+/**
+ * struct leapraid_evt_data_sas_dev_status_change - SAS device status change
+ *
+ * @task_tag: Task identifier.
+ * @reason_code: Reason for status change.
+ * @physical_port: Physical port number.
+ * @r1: Reserved.
+ * @dev_hdl: Device handle.
+ * @r2: Reserved.
+ * @sas_address: SAS address of device.
+ * @lun: Logical unit Number.
+ */
+struct leapraid_evt_data_sas_dev_status_change {
+ __le16 task_tag;
+ u8 reason_code;
+ u8 physical_port;
+ u8 r1[2];
+ __le16 dev_hdl;
+ u8 r2[4];
+ __le64 sas_address;
+ u8 lun[8];
+} __packed __aligned(4);
+/**
+ * struct leapraid_evt_data_ir_change - IR (Integrated RAID) change event data
+ *
+ * @r1: Reserved.
+ * @reason_code: Reason for IR change.
+ * @r2: Reserved.
+ * @vol_dev_hdl: Volume device handle.
+ * @phys_disk_dev_hdl: Physical disk device handle.
+ */
+struct leapraid_evt_data_ir_change {
+ u8 r1;
+ u8 reason_code;
+ u8 r2[2];
+ __le16 vol_dev_hdl;
+ __le16 phys_disk_dev_hdl;
+};
+
+/**
+ * struct leapraid_evt_data_sas_disc - SAS discovery event data
+ *
+ * @r1: Reserved.
+ * @reason_code: Reason for discovery event.
+ * @physical_port: Physical port number where event occurred.
+ * @r2: Reserved.
+ */
+struct leapraid_evt_data_sas_disc {
+ u8 r1;
+ u8 reason_code;
+ u8 physical_port;
+ u8 r2[5];
+};
+
+/**
+ * struct leapraid_evt_sas_topo_phy_entry - SAS topology PHY entry
+ *
+ * @attached_dev_hdl: Device handle attached to PHY.
+ * @link_rate: Current link rate.
+ * @phy_status: PHY status flags.
+ */
+struct leapraid_evt_sas_topo_phy_entry {
+ __le16 attached_dev_hdl;
+ u8 link_rate;
+ u8 phy_status;
+};
+
+/**
+ * struct leapraid_evt_data_sas_topo_change_list - SAS topology change list
+ *
+ * @encl_hdl: Enclosure handle.
+ * @exp_dev_hdl: Expander device handle.
+ * @num_phys: Number of PHYs in this entry.
+ * @r1: Reserved.
+ * @entry_num: Number of PHY elements.
+ * @start_phy_num: Start PHY number.
+ * @exp_status: Expander status.
+ * @physical_port: Physical port number.
+ * @phy: Array of SAS PHY entries.
+ */
+struct leapraid_evt_data_sas_topo_change_list {
+ __le16 encl_hdl;
+ __le16 exp_dev_hdl;
+ u8 num_phys;
+ u8 r1[3];
+ u8 entry_num;
+ u8 start_phy_num;
+ u8 exp_status;
+ u8 physical_port;
+ struct leapraid_evt_sas_topo_phy_entry phy[];
+};
+
+/**
+ * struct leapraid_evt_data_sas_enc_dev_status_change -
+ * SAS enclosure device status
+ *
+ * @enc_hdl: Enclosure handle.
+ * @reason_code: Reason code for status change.
+ * @physical_port: Physical port number.
+ * @encl_logical_id: Enclosure logical ID.
+ * @num_slots: Number of slots in enclosure.
+ * @start_slot: First affected slot.
+ * @phy_bits: Bitmap of affected PHYs.
+ */
+struct leapraid_evt_data_sas_enc_dev_status_change {
+ __le16 enc_hdl;
+ u8 reason_code;
+ u8 physical_port;
+ __le64 encl_logical_id;
+ __le16 num_slots;
+ __le16 start_slot;
+ __le32 phy_bits;
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_io_unit_ctrl_req - I/O unit control request
+ *
+ * @op: Operation code.
+ * @r1: Reserved.
+ * @chain_offset: SGE chain offset.
+ * @func: Function code.
+ * @dev_hdl: Device handle.
+ * @adapter_para: Adapter parameter selector.
+ * @msg_flag: Message flags.
+ * @r2: Reserved.
+ * @phy_num: PHY number.
+ * @r3: Reserved.
+ * @adapter_para_value: Value for adapter parameter.
+ * @adapter_para_value2: Optional second parameter value.
+ * @r4: Reserved.
+ */
+struct leapraid_io_unit_ctrl_req {
+ u8 op;
+ u8 r1;
+ u8 chain_offset;
+ u8 func;
+ __le16 dev_hdl;
+ u8 adapter_para;
+ u8 msg_flag;
+ u8 r2[6];
+ u8 phy_num;
+ u8 r3[17];
+ __le32 adapter_para_value;
+ __le32 adapter_para_value2;
+ u8 r4[4];
+};
+
+/**
+ * struct leapraid_io_unit_ctrl_rep - I/O unit control reply
+ *
+ * @op: Operation code echoed.
+ * @r1: Reserved.
+ * @func: Function code.
+ * @dev_hdl: Device handle.
+ * @r2: Reserved.
+ */
+struct leapraid_io_unit_ctrl_rep {
+ u8 op;
+ u8 r1[2];
+ u8 func;
+ __le16 dev_hdl;
+ u8 r2[14];
+};
+
+/**
+ * struct leapraid_raid_act_req - RAID action request
+ *
+ * @act: RAID action code.
+ * @r1: Reserved.
+ * @func: Function code.
+ * @r2: Reserved.
+ * @phys_disk_num: Number of physical disks involved.
+ * @r3: Reserved.
+ * @action_data_sge: SGE describing action-specific data.
+ */
+struct leapraid_raid_act_req {
+ u8 act;
+ u8 r1[2];
+ u8 func;
+ u8 r2[2];
+ u8 phys_disk_num;
+ u8 r3[13];
+ struct leapraid_sge_simple_union action_data_sge;
+};
+
+/**
+ * struct leapraid_raid_act_rep - RAID action reply
+ *
+ * @act: RAID action code echoed.
+ * @r1: Reserved.
+ * @func: Function code.
+ * @vol_dev_hdl: Volume device handle.
+ * @r2: Reserved
+ * @adapter_status: Status returned by adapter.
+ * @r3: Reserved.
+ */
+struct leapraid_raid_act_rep {
+ u8 act;
+ u8 r1[2];
+ u8 func;
+ __le16 vol_dev_hdl;
+ u8 r2[8];
+ __le16 adapter_status;
+ u8 r3[76];
+};
+
+/**
+ * struct leapraid_smp_passthrough_req - SMP passthrough request
+ *
+ * @passthrough_flg: Passthrough flags.
+ * @physical_port: Target PHY port.
+ * @r1: Reserved.
+ * @func: Function code.
+ * @req_data_len: Request data length.
+ * @r2: Reserved.
+ * @sas_address: SAS address of target device.
+ * @r3: Reserved.
+ * @sgl: Scatter-gather list describing request buffer.
+ */
+struct leapraid_smp_passthrough_req {
+ u8 passthrough_flg;
+ u8 physical_port;
+ u8 r1;
+ u8 func;
+ __le16 req_data_len;
+ u8 r2[10];
+ __le64 sas_address;
+ u8 r3[8];
+ union leapraid_simple_sge_union sgl;
+} __packed __aligned(4);
+
+/**
+ * struct leapraid_smp_passthrough_rep - SMP passthrough reply
+ *
+ * @passthrough_flg: Passthrough flags echoed.
+ * @physical_port: Target PHY port.
+ * @r1: Reserved.
+ * @func: Function code.
+ * @resp_data_len: Length of response data.
+ * @r2: Reserved.
+ * @adapter_status: Adapter status.
+ * @r3: Reserved.
+ */
+struct leapraid_smp_passthrough_rep {
+ u8 passthrough_flg;
+ u8 physical_port;
+ u8 r1;
+ u8 func;
+ __le16 resp_data_len;
+ u8 r2[8];
+ __le16 adapter_status;
+ u8 r3[12];
+};
+
+/**
+ * struct leapraid_sas_io_unit_ctrl_req - SAS I/O unit control request
+ *
+ * @op: Operation code.
+ * @r1: Reserved.
+ * @func: Function code.
+ * @dev_hdl: Device handle.
+ * @r2: Reserved.
+ */
+struct leapraid_sas_io_unit_ctrl_req {
+ u8 op;
+ u8 r1[2];
+ u8 func;
+ __le16 dev_hdl;
+ u8 r2[38];
+};
+
+#endif /* LEAPRAID_H */