diff options
Diffstat (limited to 'include/ufs/ufs.h')
| -rw-r--r-- | include/ufs/ufs.h | 90 |
1 files changed, 15 insertions, 75 deletions
diff --git a/include/ufs/ufs.h b/include/ufs/ufs.h index 198cb391f9db..0cced88f4531 100644 --- a/include/ufs/ufs.h +++ b/include/ufs/ufs.h @@ -11,10 +11,16 @@ #ifndef _UFS_H #define _UFS_H -#include <linux/mutex.h> +#include <linux/bitops.h> #include <linux/types.h> #include <uapi/scsi/scsi_bsg_ufs.h> +/* + * Using static_assert() is not allowed in UAPI header files. Hence the check + * in this header file of the size of struct utp_upiu_header. + */ +static_assert(sizeof(struct utp_upiu_header) == 12); + #define GENERAL_UPIU_REQUEST_SIZE (sizeof(struct utp_upiu_req)) #define QUERY_DESC_MAX_SIZE 255 #define QUERY_DESC_MIN_SIZE 2 @@ -23,9 +29,6 @@ (sizeof(struct utp_upiu_header))) #define UFS_SENSE_SIZE 18 -#define UPIU_HEADER_DWORD(byte3, byte2, byte1, byte0)\ - cpu_to_be32((byte3 << 24) | (byte2 << 16) |\ - (byte1 << 8) | (byte0)) /* * UFS device may have standard LUs and LUN id could be from 0x00 to * 0x7F. Standard LUs use "Peripheral Device Addressing Format". @@ -76,7 +79,7 @@ enum { }; /* UTP UPIU Transaction Codes Initiator to Target */ -enum { +enum upiu_request_transaction { UPIU_TRANSACTION_NOP_OUT = 0x00, UPIU_TRANSACTION_COMMAND = 0x01, UPIU_TRANSACTION_DATA_OUT = 0x02, @@ -85,7 +88,7 @@ enum { }; /* UTP UPIU Transaction Codes Target to Initiator */ -enum { +enum upiu_response_transaction { UPIU_TRANSACTION_NOP_IN = 0x20, UPIU_TRANSACTION_RESPONSE = 0x21, UPIU_TRANSACTION_DATA_IN = 0x22, @@ -102,6 +105,12 @@ enum { UPIU_CMD_FLAGS_READ = 0x40, }; +/* UPIU response flags */ +enum { + UPIU_RSP_FLAG_UNDERFLOW = 0x20, + UPIU_RSP_FLAG_OVERFLOW = 0x40, +}; + /* UPIU Task Attributes */ enum { UPIU_TASK_ATTR_SIMPLE = 0x00, @@ -466,21 +475,11 @@ enum { UPIU_COMMAND_SET_TYPE_QUERY = 0x2, }; -/* UTP Transfer Request Command Offset */ -#define UPIU_COMMAND_TYPE_OFFSET 28 - /* Offset of the response code in the UPIU header */ #define UPIU_RSP_CODE_OFFSET 8 enum { - MASK_SCSI_STATUS = 0xFF, - MASK_TASK_RESPONSE = 0xFF00, - MASK_RSP_UPIU_RESULT = 0xFFFF, - MASK_QUERY_DATA_SEG_LEN = 0xFFFF, - MASK_RSP_UPIU_DATA_SEG_LEN = 0xFFFF, - MASK_RSP_EXCEPTION_EVENT = 0x10000, MASK_TM_SERVICE_RESP = 0xFF, - MASK_TM_FUNC = 0xFF, }; /* Task management service response */ @@ -516,41 +515,6 @@ struct utp_cmd_rsp { u8 sense_data[UFS_SENSE_SIZE]; }; -struct ufshpb_active_field { - __be16 active_rgn; - __be16 active_srgn; -}; -#define HPB_ACT_FIELD_SIZE 4 - -/** - * struct utp_hpb_rsp - Response UPIU structure - * @residual_transfer_count: Residual transfer count DW-3 - * @reserved1: Reserved double words DW-4 to DW-7 - * @sense_data_len: Sense data length DW-8 U16 - * @desc_type: Descriptor type of sense data - * @additional_len: Additional length of sense data - * @hpb_op: HPB operation type - * @lun: LUN of response UPIU - * @active_rgn_cnt: Active region count - * @inactive_rgn_cnt: Inactive region count - * @hpb_active_field: Recommended to read HPB region and subregion - * @hpb_inactive_field: To be inactivated HPB region and subregion - */ -struct utp_hpb_rsp { - __be32 residual_transfer_count; - __be32 reserved1[4]; - __be16 sense_data_len; - u8 desc_type; - u8 additional_len; - u8 hpb_op; - u8 lun; - u8 active_rgn_cnt; - u8 inactive_rgn_cnt; - struct ufshpb_active_field hpb_active_field[2]; - __be16 hpb_inactive_field[2]; -}; -#define UTP_HPB_RSP_SIZE 40 - /** * struct utp_upiu_rsp - general upiu response structure * @header: UPIU header structure DW-0 to DW-2 @@ -561,31 +525,10 @@ struct utp_upiu_rsp { struct utp_upiu_header header; union { struct utp_cmd_rsp sr; - struct utp_hpb_rsp hr; struct utp_upiu_query qr; }; }; -/** - * struct ufs_query_req - parameters for building a query request - * @query_func: UPIU header query function - * @upiu_req: the query request data - */ -struct ufs_query_req { - u8 query_func; - struct utp_upiu_query upiu_req; -}; - -/** - * struct ufs_query_resp - UPIU QUERY - * @response: device response code - * @upiu_res: query response data - */ -struct ufs_query_res { - u8 response; - struct utp_upiu_query upiu_res; -}; - /* * VCCQ & VCCQ2 current requirement when UFS device is in sleep state * and link is in Hibern8 state. @@ -621,9 +564,6 @@ struct ufs_dev_info { /* Stores the depth of queue in UFS device */ u8 bqueuedepth; - /* UFS HPB related flag */ - bool hpb_enabled; - /* UFS WB related flags */ bool wb_enabled; bool wb_buf_flush_enabled; |