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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/* Copyright(c) 2019 Intel Corporation. All rights rsvd. */
#ifndef _USR_IDXD_H_
#define _USR_IDXD_H_
#ifdef __KERNEL__
#include <linux/types.h>
#else
#include <stdint.h>
#endif
/* Descriptor flags */
#define IDXD_OP_FLAG_FENCE 0x0001
#define IDXD_OP_FLAG_BOF 0x0002
#define IDXD_OP_FLAG_CRAV 0x0004
#define IDXD_OP_FLAG_RCR 0x0008
#define IDXD_OP_FLAG_RCI 0x0010
#define IDXD_OP_FLAG_CRSTS 0x0020
#define IDXD_OP_FLAG_CR 0x0080
#define IDXD_OP_FLAG_CC 0x0100
#define IDXD_OP_FLAG_ADDR1_TCS 0x0200
#define IDXD_OP_FLAG_ADDR2_TCS 0x0400
#define IDXD_OP_FLAG_ADDR3_TCS 0x0800
#define IDXD_OP_FLAG_CR_TCS 0x1000
#define IDXD_OP_FLAG_STORD 0x2000
#define IDXD_OP_FLAG_DRDBK 0x4000
#define IDXD_OP_FLAG_DSTS 0x8000
/* Opcode */
enum dsa_opcode {
DSA_OPCODE_NOOP = 0,
DSA_OPCODE_BATCH,
DSA_OPCODE_DRAIN,
DSA_OPCODE_MEMMOVE,
DSA_OPCODE_MEMFILL,
DSA_OPCODE_COMPARE,
DSA_OPCODE_COMPVAL,
DSA_OPCODE_CR_DELTA,
DSA_OPCODE_AP_DELTA,
DSA_OPCODE_DUALCAST,
DSA_OPCODE_CRCGEN = 0x10,
DSA_OPCODE_COPY_CRC,
DSA_OPCODE_DIF_CHECK,
DSA_OPCODE_DIF_INS,
DSA_OPCODE_DIF_STRP,
DSA_OPCODE_DIF_UPDT,
DSA_OPCODE_CFLUSH = 0x20,
};
/* Completion record status */
enum dsa_completion_status {
DSA_COMP_NONE = 0,
DSA_COMP_SUCCESS,
DSA_COMP_SUCCESS_PRED,
DSA_COMP_PAGE_FAULT_NOBOF,
DSA_COMP_PAGE_FAULT_IR,
DSA_COMP_BATCH_FAIL,
DSA_COMP_BATCH_PAGE_FAULT,
DSA_COMP_DR_OFFSET_NOINC,
DSA_COMP_DR_OFFSET_ERANGE,
DSA_COMP_DIF_ERR,
DSA_COMP_BAD_OPCODE = 0x10,
DSA_COMP_INVALID_FLAGS,
DSA_COMP_NOZERO_RESERVE,
DSA_COMP_XFER_ERANGE,
DSA_COMP_DESC_CNT_ERANGE,
DSA_COMP_DR_ERANGE,
DSA_COMP_OVERLAP_BUFFERS,
DSA_COMP_DCAST_ERR,
DSA_COMP_DESCLIST_ALIGN,
DSA_COMP_INT_HANDLE_INVAL,
DSA_COMP_CRA_XLAT,
DSA_COMP_CRA_ALIGN,
DSA_COMP_ADDR_ALIGN,
DSA_COMP_PRIV_BAD,
DSA_COMP_TRAFFIC_CLASS_CONF,
DSA_COMP_PFAULT_RDBA,
DSA_COMP_HW_ERR1,
DSA_COMP_HW_ERR_DRB,
DSA_COMP_TRANSLATION_FAIL,
};
#define DSA_COMP_STATUS_MASK 0x7f
#define DSA_COMP_STATUS_WRITE 0x80
struct dsa_batch_desc {
uint32_t pasid:20;
uint32_t rsvd:11;
uint32_t priv:1;
uint32_t flags:24;
uint32_t opcode:8;
uint64_t completion_addr;
uint64_t desc_list_addr;
uint64_t rsvd1;
uint32_t desc_count;
uint16_t interrupt_handle;
uint16_t rsvd2;
uint8_t rsvd3[24];
} __attribute__((packed));
struct dsa_hw_desc {
uint32_t pasid:20;
uint32_t rsvd:11;
uint32_t priv:1;
uint32_t flags:24;
uint32_t opcode:8;
uint64_t completion_addr;
union {
uint64_t src_addr;
uint64_t rdback_addr;
uint64_t pattern;
};
union {
uint64_t dst_addr;
uint64_t rdback_addr2;
uint64_t src2_addr;
uint64_t comp_pattern;
};
uint32_t xfer_size;
uint16_t int_handle;
uint16_t rsvd1;
union {
uint8_t expected_res;
struct {
uint64_t delta_addr;
uint32_t max_delta_size;
};
uint32_t delta_rec_size;
uint64_t dest2;
/* CRC */
struct {
uint32_t crc_seed;
uint32_t crc_rsvd;
uint64_t seed_addr;
};
/* DIF check or strip */
struct {
uint8_t src_dif_flags;
uint8_t dif_chk_res;
uint8_t dif_chk_flags;
uint8_t dif_chk_res2[5];
uint32_t chk_ref_tag_seed;
uint16_t chk_app_tag_mask;
uint16_t chk_app_tag_seed;
};
/* DIF insert */
struct {
uint8_t dif_ins_res;
uint8_t dest_dif_flag;
uint8_t dif_ins_flags;
uint8_t dif_ins_res2[13];
uint32_t ins_ref_tag_seed;
uint16_t ins_app_tag_mask;
uint16_t ins_app_tag_seed;
};
/* DIF update */
struct {
uint8_t src_upd_flags;
uint8_t upd_dest_flags;
uint8_t dif_upd_flags;
uint8_t dif_upd_res[5];
uint32_t src_ref_tag_seed;
uint16_t src_app_tag_mask;
uint16_t src_app_tag_seed;
uint32_t dest_ref_tag_seed;
uint16_t dest_app_tag_mask;
uint16_t dest_app_tag_seed;
};
uint8_t op_specific[24];
};
} __attribute__((packed));
struct dsa_raw_desc {
uint64_t field[8];
} __attribute__((packed));
/*
* The status field will be modified by hardware, therefore it should be
* volatile and prevent the compiler from optimize the read.
*/
struct dsa_completion_record {
volatile uint8_t status;
union {
uint8_t result;
uint8_t dif_status;
};
uint16_t rsvd;
uint32_t bytes_completed;
uint64_t fault_addr;
union {
uint16_t delta_rec_size;
uint16_t crc_val;
/* DIF check & strip */
struct {
uint32_t dif_chk_ref_tag;
uint16_t dif_chk_app_tag_mask;
uint16_t dif_chk_app_tag;
};
/* DIF insert */
struct {
uint64_t dif_ins_res;
uint32_t dif_ins_ref_tag;
uint16_t dif_ins_app_tag_mask;
uint16_t dif_ins_app_tag;
};
/* DIF update */
struct {
uint32_t dif_upd_src_ref_tag;
uint16_t dif_upd_src_app_tag_mask;
uint16_t dif_upd_src_app_tag;
uint32_t dif_upd_dest_ref_tag;
uint16_t dif_upd_dest_app_tag_mask;
uint16_t dif_upd_dest_app_tag;
};
uint8_t op_specific[16];
};
} __attribute__((packed));
struct dsa_raw_completion_record {
uint64_t field[4];
} __attribute__((packed));
#endif
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