| /* 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 <scsi/scsi_host.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, |
| }; |
| |
| enum { |
| REG_CQHP = 0x0, |
| REG_CQTP = 0x4, |
| }; |
| |
| enum { |
| REG_CQIS = 0x0, |
| REG_CQIE = 0x4, |
| }; |
| |
| #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) |
| |
| /* |
| * 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_REQ_DESC_INT_CMD = 0x01000000, |
| UTP_REQ_DESC_CRYPTO_ENABLE_CMD = 0x00800000, |
| }; |
| |
| /* UTP Transfer Request Data Direction (DD) */ |
| enum { |
| UTP_NO_DATA_TRANSFER = 0x00000000, |
| UTP_HOST_TO_DEVICE = 0x02000000, |
| UTP_DEVICE_TO_HOST = 0x04000000, |
| }; |
| |
| /* 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 (256 * 1024) |
| /* 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 |
| * @dword0: Descriptor Header DW0 |
| * @dword1: Descriptor Header DW1 |
| * @dword2: Descriptor Header DW2 |
| * @dword3: Descriptor Header DW3 |
| */ |
| struct request_desc_header { |
| __le32 dword_0; |
| __le32 dword_1; |
| __le32 dword_2; |
| __le32 dword_3; |
| }; |
| |
| /** |
| * struct utp_transfer_req_desc - UTP Transfer Request Descriptor (UTRD) |
| * @header: UTRD header DW-0 to DW-3 |
| * @command_desc_base_addr_lo: UCD base address low DW-4 |
| * @command_desc_base_addr_hi: UCD base address high DW-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*/ |
| __le32 command_desc_base_addr_lo; |
| __le32 command_desc_base_addr_hi; |
| |
| /* 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 */ |