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Diffstat (limited to 'include/ufs/ufshci.h')
| -rw-r--r-- | include/ufs/ufshci.h | 612 |
1 files changed, 612 insertions, 0 deletions
diff --git a/include/ufs/ufshci.h b/include/ufs/ufshci.h new file mode 100644 index 0000000000..d5accacae6 --- /dev/null +++ b/include/ufs/ufshci.h @@ -0,0 +1,612 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Universal Flash Storage Host controller driver + * Copyright (C) 2011-2013 Samsung India Software Operations + * + * Authors: + * Santosh Yaraganavi <santosh.sy@samsung.com> + * Vinayak Holikatti <h.vinayak@samsung.com> + */ + +#ifndef _UFSHCI_H +#define _UFSHCI_H + +#include <linux/types.h> +#include <ufs/ufs.h> + +enum { + TASK_REQ_UPIU_SIZE_DWORDS = 8, + TASK_RSP_UPIU_SIZE_DWORDS = 8, + ALIGNED_UPIU_SIZE = 512, +}; + +/* UFSHCI Registers */ +enum { + REG_CONTROLLER_CAPABILITIES = 0x00, + REG_MCQCAP = 0x04, + REG_UFS_VERSION = 0x08, + REG_CONTROLLER_DEV_ID = 0x10, + REG_CONTROLLER_PROD_ID = 0x14, + REG_AUTO_HIBERNATE_IDLE_TIMER = 0x18, + REG_INTERRUPT_STATUS = 0x20, + REG_INTERRUPT_ENABLE = 0x24, + REG_CONTROLLER_STATUS = 0x30, + REG_CONTROLLER_ENABLE = 0x34, + REG_UIC_ERROR_CODE_PHY_ADAPTER_LAYER = 0x38, + REG_UIC_ERROR_CODE_DATA_LINK_LAYER = 0x3C, + REG_UIC_ERROR_CODE_NETWORK_LAYER = 0x40, + REG_UIC_ERROR_CODE_TRANSPORT_LAYER = 0x44, + REG_UIC_ERROR_CODE_DME = 0x48, + REG_UTP_TRANSFER_REQ_INT_AGG_CONTROL = 0x4C, + REG_UTP_TRANSFER_REQ_LIST_BASE_L = 0x50, + REG_UTP_TRANSFER_REQ_LIST_BASE_H = 0x54, + REG_UTP_TRANSFER_REQ_DOOR_BELL = 0x58, + REG_UTP_TRANSFER_REQ_LIST_CLEAR = 0x5C, + REG_UTP_TRANSFER_REQ_LIST_RUN_STOP = 0x60, + REG_UTP_TASK_REQ_LIST_BASE_L = 0x70, + REG_UTP_TASK_REQ_LIST_BASE_H = 0x74, + REG_UTP_TASK_REQ_DOOR_BELL = 0x78, + REG_UTP_TASK_REQ_LIST_CLEAR = 0x7C, + REG_UTP_TASK_REQ_LIST_RUN_STOP = 0x80, + REG_UIC_COMMAND = 0x90, + REG_UIC_COMMAND_ARG_1 = 0x94, + REG_UIC_COMMAND_ARG_2 = 0x98, + REG_UIC_COMMAND_ARG_3 = 0x9C, + + UFSHCI_REG_SPACE_SIZE = 0xA0, + + REG_UFS_CCAP = 0x100, + REG_UFS_CRYPTOCAP = 0x104, + + REG_UFS_MEM_CFG = 0x300, + REG_UFS_MCQ_CFG = 0x380, + REG_UFS_ESILBA = 0x384, + REG_UFS_ESIUBA = 0x388, + UFSHCI_CRYPTO_REG_SPACE_SIZE = 0x400, +}; + +/* Controller capability masks */ +enum { + MASK_TRANSFER_REQUESTS_SLOTS = 0x0000001F, + MASK_TASK_MANAGEMENT_REQUEST_SLOTS = 0x00070000, + MASK_EHSLUTRD_SUPPORTED = 0x00400000, + MASK_AUTO_HIBERN8_SUPPORT = 0x00800000, + MASK_64_ADDRESSING_SUPPORT = 0x01000000, + MASK_OUT_OF_ORDER_DATA_DELIVERY_SUPPORT = 0x02000000, + MASK_UIC_DME_TEST_MODE_SUPPORT = 0x04000000, + MASK_CRYPTO_SUPPORT = 0x10000000, + MASK_MCQ_SUPPORT = 0x40000000, +}; + +/* MCQ capability mask */ +enum { + MASK_EXT_IID_SUPPORT = 0x00000400, +}; + +enum { + REG_SQATTR = 0x0, + REG_SQLBA = 0x4, + REG_SQUBA = 0x8, + REG_SQDAO = 0xC, + REG_SQISAO = 0x10, + + REG_CQATTR = 0x20, + REG_CQLBA = 0x24, + REG_CQUBA = 0x28, + REG_CQDAO = 0x2C, + REG_CQISAO = 0x30, +}; + +enum { + REG_SQHP = 0x0, + REG_SQTP = 0x4, + REG_SQRTC = 0x8, + REG_SQCTI = 0xC, + REG_SQRTS = 0x10, +}; + +enum { + REG_CQHP = 0x0, + REG_CQTP = 0x4, +}; + +enum { + REG_CQIS = 0x0, + REG_CQIE = 0x4, +}; + +enum { + SQ_START = 0x0, + SQ_STOP = 0x1, + SQ_ICU = 0x2, +}; + +enum { + SQ_STS = 0x1, + SQ_CUS = 0x2, +}; + +#define SQ_ICU_ERR_CODE_MASK GENMASK(7, 4) +#define UFS_MASK(mask, offset) ((mask) << (offset)) + +/* UFS Version 08h */ +#define MINOR_VERSION_NUM_MASK UFS_MASK(0xFFFF, 0) +#define MAJOR_VERSION_NUM_MASK UFS_MASK(0xFFFF, 16) + +#define UFSHCD_NUM_RESERVED 1 +/* + * Controller UFSHCI version + * - 2.x and newer use the following scheme: + * major << 8 + minor << 4 + * - 1.x has been converted to match this in + * ufshcd_get_ufs_version() + */ +static inline u32 ufshci_version(u32 major, u32 minor) +{ + return (major << 8) + (minor << 4); +} + +/* + * HCDDID - Host Controller Identification Descriptor + * - Device ID and Device Class 10h + */ +#define DEVICE_CLASS UFS_MASK(0xFFFF, 0) +#define DEVICE_ID UFS_MASK(0xFF, 24) + +/* + * HCPMID - Host Controller Identification Descriptor + * - Product/Manufacturer ID 14h + */ +#define MANUFACTURE_ID_MASK UFS_MASK(0xFFFF, 0) +#define PRODUCT_ID_MASK UFS_MASK(0xFFFF, 16) + +/* AHIT - Auto-Hibernate Idle Timer */ +#define UFSHCI_AHIBERN8_TIMER_MASK GENMASK(9, 0) +#define UFSHCI_AHIBERN8_SCALE_MASK GENMASK(12, 10) +#define UFSHCI_AHIBERN8_SCALE_FACTOR 10 +#define UFSHCI_AHIBERN8_MAX (1023 * 100000) + +/* + * IS - Interrupt Status - 20h + */ +#define UTP_TRANSFER_REQ_COMPL 0x1 +#define UIC_DME_END_PT_RESET 0x2 +#define UIC_ERROR 0x4 +#define UIC_TEST_MODE 0x8 +#define UIC_POWER_MODE 0x10 +#define UIC_HIBERNATE_EXIT 0x20 +#define UIC_HIBERNATE_ENTER 0x40 +#define UIC_LINK_LOST 0x80 +#define UIC_LINK_STARTUP 0x100 +#define UTP_TASK_REQ_COMPL 0x200 +#define UIC_COMMAND_COMPL 0x400 +#define DEVICE_FATAL_ERROR 0x800 +#define CONTROLLER_FATAL_ERROR 0x10000 +#define SYSTEM_BUS_FATAL_ERROR 0x20000 +#define CRYPTO_ENGINE_FATAL_ERROR 0x40000 +#define MCQ_CQ_EVENT_STATUS 0x100000 + +#define UFSHCD_UIC_HIBERN8_MASK (UIC_HIBERNATE_ENTER |\ + UIC_HIBERNATE_EXIT) + +#define UFSHCD_UIC_PWR_MASK (UFSHCD_UIC_HIBERN8_MASK |\ + UIC_POWER_MODE) + +#define UFSHCD_UIC_MASK (UIC_COMMAND_COMPL | UFSHCD_UIC_PWR_MASK) + +#define UFSHCD_ERROR_MASK (UIC_ERROR | INT_FATAL_ERRORS) + +#define INT_FATAL_ERRORS (DEVICE_FATAL_ERROR |\ + CONTROLLER_FATAL_ERROR |\ + SYSTEM_BUS_FATAL_ERROR |\ + CRYPTO_ENGINE_FATAL_ERROR |\ + UIC_LINK_LOST) + +/* HCS - Host Controller Status 30h */ +#define DEVICE_PRESENT 0x1 +#define UTP_TRANSFER_REQ_LIST_READY 0x2 +#define UTP_TASK_REQ_LIST_READY 0x4 +#define UIC_COMMAND_READY 0x8 +#define HOST_ERROR_INDICATOR 0x10 +#define DEVICE_ERROR_INDICATOR 0x20 +#define UIC_POWER_MODE_CHANGE_REQ_STATUS_MASK UFS_MASK(0x7, 8) + +#define UFSHCD_STATUS_READY (UTP_TRANSFER_REQ_LIST_READY |\ + UTP_TASK_REQ_LIST_READY |\ + UIC_COMMAND_READY) + +enum { + PWR_OK = 0x0, + PWR_LOCAL = 0x01, + PWR_REMOTE = 0x02, + PWR_BUSY = 0x03, + PWR_ERROR_CAP = 0x04, + PWR_FATAL_ERROR = 0x05, +}; + +/* HCE - Host Controller Enable 34h */ +#define CONTROLLER_ENABLE 0x1 +#define CONTROLLER_DISABLE 0x0 +#define CRYPTO_GENERAL_ENABLE 0x2 + +/* UECPA - Host UIC Error Code PHY Adapter Layer 38h */ +#define UIC_PHY_ADAPTER_LAYER_ERROR 0x80000000 +#define UIC_PHY_ADAPTER_LAYER_ERROR_CODE_MASK 0x1F +#define UIC_PHY_ADAPTER_LAYER_LANE_ERR_MASK 0xF +#define UIC_PHY_ADAPTER_LAYER_GENERIC_ERROR 0x10 + +/* UECDL - Host UIC Error Code Data Link Layer 3Ch */ +#define UIC_DATA_LINK_LAYER_ERROR 0x80000000 +#define UIC_DATA_LINK_LAYER_ERROR_CODE_MASK 0xFFFF +#define UIC_DATA_LINK_LAYER_ERROR_TCX_REP_TIMER_EXP 0x2 +#define UIC_DATA_LINK_LAYER_ERROR_AFCX_REQ_TIMER_EXP 0x4 +#define UIC_DATA_LINK_LAYER_ERROR_FCX_PRO_TIMER_EXP 0x8 +#define UIC_DATA_LINK_LAYER_ERROR_RX_BUF_OF 0x20 +#define UIC_DATA_LINK_LAYER_ERROR_PA_INIT 0x2000 +#define UIC_DATA_LINK_LAYER_ERROR_NAC_RECEIVED 0x0001 +#define UIC_DATA_LINK_LAYER_ERROR_TCx_REPLAY_TIMEOUT 0x0002 + +/* UECN - Host UIC Error Code Network Layer 40h */ +#define UIC_NETWORK_LAYER_ERROR 0x80000000 +#define UIC_NETWORK_LAYER_ERROR_CODE_MASK 0x7 +#define UIC_NETWORK_UNSUPPORTED_HEADER_TYPE 0x1 +#define UIC_NETWORK_BAD_DEVICEID_ENC 0x2 +#define UIC_NETWORK_LHDR_TRAP_PACKET_DROPPING 0x4 + +/* UECT - Host UIC Error Code Transport Layer 44h */ +#define UIC_TRANSPORT_LAYER_ERROR 0x80000000 +#define UIC_TRANSPORT_LAYER_ERROR_CODE_MASK 0x7F +#define UIC_TRANSPORT_UNSUPPORTED_HEADER_TYPE 0x1 +#define UIC_TRANSPORT_UNKNOWN_CPORTID 0x2 +#define UIC_TRANSPORT_NO_CONNECTION_RX 0x4 +#define UIC_TRANSPORT_CONTROLLED_SEGMENT_DROPPING 0x8 +#define UIC_TRANSPORT_BAD_TC 0x10 +#define UIC_TRANSPORT_E2E_CREDIT_OVERFOW 0x20 +#define UIC_TRANSPORT_SAFETY_VALUE_DROPPING 0x40 + +/* UECDME - Host UIC Error Code DME 48h */ +#define UIC_DME_ERROR 0x80000000 +#define UIC_DME_ERROR_CODE_MASK 0x1 + +/* UTRIACR - Interrupt Aggregation control register - 0x4Ch */ +#define INT_AGGR_TIMEOUT_VAL_MASK 0xFF +#define INT_AGGR_COUNTER_THRESHOLD_MASK UFS_MASK(0x1F, 8) +#define INT_AGGR_COUNTER_AND_TIMER_RESET 0x10000 +#define INT_AGGR_STATUS_BIT 0x100000 +#define INT_AGGR_PARAM_WRITE 0x1000000 +#define INT_AGGR_ENABLE 0x80000000 + +/* UTRLRSR - UTP Transfer Request Run-Stop Register 60h */ +#define UTP_TRANSFER_REQ_LIST_RUN_STOP_BIT 0x1 + +/* UTMRLRSR - UTP Task Management Request Run-Stop Register 80h */ +#define UTP_TASK_REQ_LIST_RUN_STOP_BIT 0x1 + +/* CQISy - CQ y Interrupt Status Register */ +#define UFSHCD_MCQ_CQIS_TAIL_ENT_PUSH_STS 0x1 + +/* UICCMD - UIC Command */ +#define COMMAND_OPCODE_MASK 0xFF +#define GEN_SELECTOR_INDEX_MASK 0xFFFF + +#define MIB_ATTRIBUTE_MASK UFS_MASK(0xFFFF, 16) +#define RESET_LEVEL 0xFF + +#define ATTR_SET_TYPE_MASK UFS_MASK(0xFF, 16) +#define CONFIG_RESULT_CODE_MASK 0xFF +#define GENERIC_ERROR_CODE_MASK 0xFF + +/* GenSelectorIndex calculation macros for M-PHY attributes */ +#define UIC_ARG_MPHY_TX_GEN_SEL_INDEX(lane) (lane) +#define UIC_ARG_MPHY_RX_GEN_SEL_INDEX(lane) (PA_MAXDATALANES + (lane)) + +#define UIC_ARG_MIB_SEL(attr, sel) ((((attr) & 0xFFFF) << 16) |\ + ((sel) & 0xFFFF)) +#define UIC_ARG_MIB(attr) UIC_ARG_MIB_SEL(attr, 0) +#define UIC_ARG_ATTR_TYPE(t) (((t) & 0xFF) << 16) +#define UIC_GET_ATTR_ID(v) (((v) >> 16) & 0xFFFF) + +/* Link Status*/ +enum link_status { + UFSHCD_LINK_IS_DOWN = 1, + UFSHCD_LINK_IS_UP = 2, +}; + +/* UIC Commands */ +enum uic_cmd_dme { + UIC_CMD_DME_GET = 0x01, + UIC_CMD_DME_SET = 0x02, + UIC_CMD_DME_PEER_GET = 0x03, + UIC_CMD_DME_PEER_SET = 0x04, + UIC_CMD_DME_POWERON = 0x10, + UIC_CMD_DME_POWEROFF = 0x11, + UIC_CMD_DME_ENABLE = 0x12, + UIC_CMD_DME_RESET = 0x14, + UIC_CMD_DME_END_PT_RST = 0x15, + UIC_CMD_DME_LINK_STARTUP = 0x16, + UIC_CMD_DME_HIBER_ENTER = 0x17, + UIC_CMD_DME_HIBER_EXIT = 0x18, + UIC_CMD_DME_TEST_MODE = 0x1A, +}; + +/* UIC Config result code / Generic error code */ +enum { + UIC_CMD_RESULT_SUCCESS = 0x00, + UIC_CMD_RESULT_INVALID_ATTR = 0x01, + UIC_CMD_RESULT_FAILURE = 0x01, + UIC_CMD_RESULT_INVALID_ATTR_VALUE = 0x02, + UIC_CMD_RESULT_READ_ONLY_ATTR = 0x03, + UIC_CMD_RESULT_WRITE_ONLY_ATTR = 0x04, + UIC_CMD_RESULT_BAD_INDEX = 0x05, + UIC_CMD_RESULT_LOCKED_ATTR = 0x06, + UIC_CMD_RESULT_BAD_TEST_FEATURE_INDEX = 0x07, + UIC_CMD_RESULT_PEER_COMM_FAILURE = 0x08, + UIC_CMD_RESULT_BUSY = 0x09, + UIC_CMD_RESULT_DME_FAILURE = 0x0A, +}; + +#define MASK_UIC_COMMAND_RESULT 0xFF + +#define INT_AGGR_COUNTER_THLD_VAL(c) (((c) & 0x1F) << 8) +#define INT_AGGR_TIMEOUT_VAL(t) (((t) & 0xFF) << 0) + +/* Interrupt disable masks */ +enum { + /* Interrupt disable mask for UFSHCI v1.0 */ + INTERRUPT_MASK_ALL_VER_10 = 0x30FFF, + INTERRUPT_MASK_RW_VER_10 = 0x30000, + + /* Interrupt disable mask for UFSHCI v1.1 */ + INTERRUPT_MASK_ALL_VER_11 = 0x31FFF, + + /* Interrupt disable mask for UFSHCI v2.1 */ + INTERRUPT_MASK_ALL_VER_21 = 0x71FFF, +}; + +/* CCAP - Crypto Capability 100h */ +union ufs_crypto_capabilities { + __le32 reg_val; + struct { + u8 num_crypto_cap; + u8 config_count; + u8 reserved; + u8 config_array_ptr; + }; +}; + +enum ufs_crypto_key_size { + UFS_CRYPTO_KEY_SIZE_INVALID = 0x0, + UFS_CRYPTO_KEY_SIZE_128 = 0x1, + UFS_CRYPTO_KEY_SIZE_192 = 0x2, + UFS_CRYPTO_KEY_SIZE_256 = 0x3, + UFS_CRYPTO_KEY_SIZE_512 = 0x4, +}; + +enum ufs_crypto_alg { + UFS_CRYPTO_ALG_AES_XTS = 0x0, + UFS_CRYPTO_ALG_BITLOCKER_AES_CBC = 0x1, + UFS_CRYPTO_ALG_AES_ECB = 0x2, + UFS_CRYPTO_ALG_ESSIV_AES_CBC = 0x3, +}; + +/* x-CRYPTOCAP - Crypto Capability X */ +union ufs_crypto_cap_entry { + __le32 reg_val; + struct { + u8 algorithm_id; + u8 sdus_mask; /* Supported data unit size mask */ + u8 key_size; + u8 reserved; + }; +}; + +#define UFS_CRYPTO_CONFIGURATION_ENABLE (1 << 7) +#define UFS_CRYPTO_KEY_MAX_SIZE 64 +/* x-CRYPTOCFG - Crypto Configuration X */ +union ufs_crypto_cfg_entry { + __le32 reg_val[32]; + struct { + u8 crypto_key[UFS_CRYPTO_KEY_MAX_SIZE]; + u8 data_unit_size; + u8 crypto_cap_idx; + u8 reserved_1; + u8 config_enable; + u8 reserved_multi_host; + u8 reserved_2; + u8 vsb[2]; + u8 reserved_3[56]; + }; +}; + +/* + * Request Descriptor Definitions + */ + +/* Transfer request command type */ +enum { + UTP_CMD_TYPE_SCSI = 0x0, + UTP_CMD_TYPE_UFS = 0x1, + UTP_CMD_TYPE_DEV_MANAGE = 0x2, +}; + +/* To accommodate UFS2.0 required Command type */ +enum { + UTP_CMD_TYPE_UFS_STORAGE = 0x1, +}; + +enum { + UTP_SCSI_COMMAND = 0x00000000, + UTP_NATIVE_UFS_COMMAND = 0x10000000, + UTP_DEVICE_MANAGEMENT_FUNCTION = 0x20000000, +}; + +/* UTP Transfer Request Data Direction (DD) */ +enum utp_data_direction { + UTP_NO_DATA_TRANSFER = 0, + UTP_HOST_TO_DEVICE = 1, + UTP_DEVICE_TO_HOST = 2, +}; + +/* Overall command status values */ +enum utp_ocs { + OCS_SUCCESS = 0x0, + OCS_INVALID_CMD_TABLE_ATTR = 0x1, + OCS_INVALID_PRDT_ATTR = 0x2, + OCS_MISMATCH_DATA_BUF_SIZE = 0x3, + OCS_MISMATCH_RESP_UPIU_SIZE = 0x4, + OCS_PEER_COMM_FAILURE = 0x5, + OCS_ABORTED = 0x6, + OCS_FATAL_ERROR = 0x7, + OCS_DEVICE_FATAL_ERROR = 0x8, + OCS_INVALID_CRYPTO_CONFIG = 0x9, + OCS_GENERAL_CRYPTO_ERROR = 0xA, + OCS_INVALID_COMMAND_STATUS = 0x0F, +}; + +enum { + MASK_OCS = 0x0F, +}; + +/* The maximum length of the data byte count field in the PRDT is 256KB */ +#define PRDT_DATA_BYTE_COUNT_MAX SZ_256K +/* The granularity of the data byte count field in the PRDT is 32-bit */ +#define PRDT_DATA_BYTE_COUNT_PAD 4 + +/** + * struct ufshcd_sg_entry - UFSHCI PRD Entry + * @addr: Physical address; DW-0 and DW-1. + * @reserved: Reserved for future use DW-2 + * @size: size of physical segment DW-3 + */ +struct ufshcd_sg_entry { + __le64 addr; + __le32 reserved; + __le32 size; + /* + * followed by variant-specific fields if + * CONFIG_SCSI_UFS_VARIABLE_SG_ENTRY_SIZE has been defined. + */ +}; + +/** + * struct utp_transfer_cmd_desc - UTP Command Descriptor (UCD) + * @command_upiu: Command UPIU Frame address + * @response_upiu: Response UPIU Frame address + * @prd_table: Physical Region Descriptor: an array of SG_ALL struct + * ufshcd_sg_entry's. Variant-specific fields may be present after each. + */ +struct utp_transfer_cmd_desc { + u8 command_upiu[ALIGNED_UPIU_SIZE]; + u8 response_upiu[ALIGNED_UPIU_SIZE]; + u8 prd_table[]; +}; + +/** + * struct request_desc_header - Descriptor Header common to both UTRD and UTMRD + */ +struct request_desc_header { + u8 cci; + u8 ehs_length; +#if defined(__BIG_ENDIAN) + u8 enable_crypto:1; + u8 reserved2:7; + + u8 command_type:4; + u8 reserved1:1; + u8 data_direction:2; + u8 interrupt:1; +#elif defined(__LITTLE_ENDIAN) + u8 reserved2:7; + u8 enable_crypto:1; + + u8 interrupt:1; + u8 data_direction:2; + u8 reserved1:1; + u8 command_type:4; +#else +#error +#endif + + __le32 dunl; + u8 ocs; + u8 cds; + __le16 ldbc; + __le32 dunu; +}; + +static_assert(sizeof(struct request_desc_header) == 16); + +/** + * struct utp_transfer_req_desc - UTP Transfer Request Descriptor (UTRD) + * @header: UTRD header DW-0 to DW-3 + * @command_desc_base_addr: UCD base address DW 4-5 + * @response_upiu_length: response UPIU length DW-6 + * @response_upiu_offset: response UPIU offset DW-6 + * @prd_table_length: Physical region descriptor length DW-7 + * @prd_table_offset: Physical region descriptor offset DW-7 + */ +struct utp_transfer_req_desc { + + /* DW 0-3 */ + struct request_desc_header header; + + /* DW 4-5*/ + __le64 command_desc_base_addr; + + /* DW 6 */ + __le16 response_upiu_length; + __le16 response_upiu_offset; + + /* DW 7 */ + __le16 prd_table_length; + __le16 prd_table_offset; +}; + +/* MCQ Completion Queue Entry */ +struct cq_entry { + /* DW 0-1 */ + __le64 command_desc_base_addr; + + /* DW 2 */ + __le16 response_upiu_length; + __le16 response_upiu_offset; + + /* DW 3 */ + __le16 prd_table_length; + __le16 prd_table_offset; + + /* DW 4 */ + __le32 status; + + /* DW 5-7 */ + __le32 reserved[3]; +}; + +static_assert(sizeof(struct cq_entry) == 32); + +/* + * UTMRD structure. + */ +struct utp_task_req_desc { + /* DW 0-3 */ + struct request_desc_header header; + + /* DW 4-11 - Task request UPIU structure */ + struct { + struct utp_upiu_header req_header; + __be32 input_param1; + __be32 input_param2; + __be32 input_param3; + __be32 __reserved1[2]; + } upiu_req; + + /* DW 12-19 - Task Management Response UPIU structure */ + struct { + struct utp_upiu_header rsp_header; + __be32 output_param1; + __be32 output_param2; + __be32 __reserved2[3]; + } upiu_rsp; +}; + +#endif /* End of Header */ |