diff --git a/drivers/raw/ioat/Makefile b/drivers/raw/ioat/Makefile
index 7726e310a..1e10938f3 100644
--- a/drivers/raw/ioat/Makefile
+++ b/drivers/raw/ioat/Makefile
@@ -24,5 +24,6 @@ SRCS-$(CONFIG_RTE_LIBRTE_PMD_IOAT_RAWDEV) += ioat_rawdev.c
 
 # export include files
 SYMLINK-y-include += rte_ioat_rawdev.h
+SYMLINK-y-include += rte_ioat_spec.h
 
 include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/raw/ioat/meson.build b/drivers/raw/ioat/meson.build
index ba7620a68..ca23e23fc 100644
--- a/drivers/raw/ioat/meson.build
+++ b/drivers/raw/ioat/meson.build
@@ -5,4 +5,5 @@ build = dpdk_conf.has('RTE_ARCH_X86')
 sources = files('ioat_rawdev.c')
 deps += ['rawdev', 'bus_pci']
 
-install_headers('rte_ioat_rawdev.h')
+install_headers('rte_ioat_rawdev.h',
+		'rte_ioat_spec.h')
diff --git a/drivers/raw/ioat/rte_ioat_spec.h b/drivers/raw/ioat/rte_ioat_spec.h
new file mode 100644
index 000000000..305e36ded
--- /dev/null
+++ b/drivers/raw/ioat/rte_ioat_spec.h
@@ -0,0 +1,301 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) Intel Corporation
+ */
+
+/**
+ * \file
+ * I/OAT specification definitions
+ *
+ * Taken from ioat_spec.h from SPDK project, with prefix renames and
+ * other minor changes.
+ */
+
+#ifndef RTE_IOAT_SPEC_H
+#define RTE_IOAT_SPEC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#define RTE_IOAT_PCI_CHANERR_INT_OFFSET	0x180
+
+#define RTE_IOAT_INTRCTRL_MASTER_INT_EN	0x01
+
+#define RTE_IOAT_VER_3_0                0x30
+#define RTE_IOAT_VER_3_3                0x33
+
+/* DMA Channel Registers */
+#define RTE_IOAT_CHANCTRL_CHANNEL_PRIORITY_MASK	0xF000
+#define RTE_IOAT_CHANCTRL_COMPL_DCA_EN		0x0200
+#define RTE_IOAT_CHANCTRL_CHANNEL_IN_USE		0x0100
+#define RTE_IOAT_CHANCTRL_DESCRIPTOR_ADDR_SNOOP_CONTROL	0x0020
+#define RTE_IOAT_CHANCTRL_ERR_INT_EN		0x0010
+#define RTE_IOAT_CHANCTRL_ANY_ERR_ABORT_EN		0x0008
+#define RTE_IOAT_CHANCTRL_ERR_COMPLETION_EN		0x0004
+#define RTE_IOAT_CHANCTRL_INT_REARM			0x0001
+
+/* DMA Channel Capabilities */
+#define	RTE_IOAT_DMACAP_PB		(1 << 0)
+#define	RTE_IOAT_DMACAP_DCA		(1 << 4)
+#define	RTE_IOAT_DMACAP_BFILL		(1 << 6)
+#define	RTE_IOAT_DMACAP_XOR		(1 << 8)
+#define	RTE_IOAT_DMACAP_PQ		(1 << 9)
+#define	RTE_IOAT_DMACAP_DMA_DIF	(1 << 10)
+
+struct rte_ioat_registers {
+	uint8_t		chancnt;
+	uint8_t		xfercap;
+	uint8_t		genctrl;
+	uint8_t		intrctrl;
+	uint32_t	attnstatus;
+	uint8_t		cbver;		/* 0x08 */
+	uint8_t		reserved4[0x3]; /* 0x09 */
+	uint16_t	intrdelay;	/* 0x0C */
+	uint16_t	cs_status;	/* 0x0E */
+	uint32_t	dmacapability;	/* 0x10 */
+	uint8_t		reserved5[0x6C]; /* 0x14 */
+	uint16_t	chanctrl;	/* 0x80 */
+	uint8_t		reserved6[0x2];	/* 0x82 */
+	uint8_t		chancmd;	/* 0x84 */
+	uint8_t		reserved3[1];	/* 0x85 */
+	uint16_t	dmacount;	/* 0x86 */
+	uint64_t	chansts;	/* 0x88 */
+	uint64_t	chainaddr;	/* 0x90 */
+	uint64_t	chancmp;	/* 0x98 */
+	uint8_t		reserved2[0x8];	/* 0xA0 */
+	uint32_t	chanerr;	/* 0xA8 */
+	uint32_t	chanerrmask;	/* 0xAC */
+} __attribute__((packed));
+
+#define RTE_IOAT_CHANCMD_RESET			0x20
+#define RTE_IOAT_CHANCMD_SUSPEND		0x04
+
+#define RTE_IOAT_CHANSTS_STATUS		0x7ULL
+#define RTE_IOAT_CHANSTS_ACTIVE		0x0
+#define RTE_IOAT_CHANSTS_IDLE			0x1
+#define RTE_IOAT_CHANSTS_SUSPENDED		0x2
+#define RTE_IOAT_CHANSTS_HALTED		0x3
+#define RTE_IOAT_CHANSTS_ARMED			0x4
+
+#define RTE_IOAT_CHANSTS_UNAFFILIATED_ERROR	0x8ULL
+#define RTE_IOAT_CHANSTS_SOFT_ERROR		0x10ULL
+
+#define RTE_IOAT_CHANSTS_COMPLETED_DESCRIPTOR_MASK	(~0x3FULL)
+
+#define RTE_IOAT_CHANCMP_ALIGN			8	/* CHANCMP address must be 64-bit aligned */
+
+struct rte_ioat_generic_hw_desc {
+	uint32_t size;
+	union {
+		uint32_t control_raw;
+		struct {
+			uint32_t int_enable: 1;
+			uint32_t src_snoop_disable: 1;
+			uint32_t dest_snoop_disable: 1;
+			uint32_t completion_update: 1;
+			uint32_t fence: 1;
+			uint32_t reserved2: 1;
+			uint32_t src_page_break: 1;
+			uint32_t dest_page_break: 1;
+			uint32_t bundle: 1;
+			uint32_t dest_dca: 1;
+			uint32_t hint: 1;
+			uint32_t reserved: 13;
+			uint32_t op: 8;
+		} control;
+	} u;
+	uint64_t src_addr;
+	uint64_t dest_addr;
+	uint64_t next;
+	uint64_t op_specific[4];
+};
+
+struct rte_ioat_dma_hw_desc {
+	uint32_t size;
+	union {
+		uint32_t control_raw;
+		struct {
+			uint32_t int_enable: 1;
+			uint32_t src_snoop_disable: 1;
+			uint32_t dest_snoop_disable: 1;
+			uint32_t completion_update: 1;
+			uint32_t fence: 1;
+			uint32_t null: 1;
+			uint32_t src_page_break: 1;
+			uint32_t dest_page_break: 1;
+			uint32_t bundle: 1;
+			uint32_t dest_dca: 1;
+			uint32_t hint: 1;
+			uint32_t reserved: 13;
+#define RTE_IOAT_OP_COPY 0x00
+			uint32_t op: 8;
+		} control;
+	} u;
+	uint64_t src_addr;
+	uint64_t dest_addr;
+	uint64_t next;
+	uint64_t reserved;
+	uint64_t reserved2;
+	uint64_t user1;
+	uint64_t user2;
+};
+
+struct rte_ioat_fill_hw_desc {
+	uint32_t size;
+	union {
+		uint32_t control_raw;
+		struct {
+			uint32_t int_enable: 1;
+			uint32_t reserved: 1;
+			uint32_t dest_snoop_disable: 1;
+			uint32_t completion_update: 1;
+			uint32_t fence: 1;
+			uint32_t reserved2: 2;
+			uint32_t dest_page_break: 1;
+			uint32_t bundle: 1;
+			uint32_t reserved3: 15;
+#define RTE_IOAT_OP_FILL 0x01
+			uint32_t op: 8;
+		} control;
+	} u;
+	uint64_t src_data;
+	uint64_t dest_addr;
+	uint64_t next;
+	uint64_t reserved;
+	uint64_t next_dest_addr;
+	uint64_t user1;
+	uint64_t user2;
+};
+
+struct rte_ioat_xor_hw_desc {
+	uint32_t size;
+	union {
+		uint32_t control_raw;
+		struct {
+			uint32_t int_enable: 1;
+			uint32_t src_snoop_disable: 1;
+			uint32_t dest_snoop_disable: 1;
+			uint32_t completion_update: 1;
+			uint32_t fence: 1;
+			uint32_t src_count: 3;
+			uint32_t bundle: 1;
+			uint32_t dest_dca: 1;
+			uint32_t hint: 1;
+			uint32_t reserved: 13;
+#define RTE_IOAT_OP_XOR 0x87
+#define RTE_IOAT_OP_XOR_VAL 0x88
+			uint32_t op: 8;
+		} control;
+	} u;
+	uint64_t src_addr;
+	uint64_t dest_addr;
+	uint64_t next;
+	uint64_t src_addr2;
+	uint64_t src_addr3;
+	uint64_t src_addr4;
+	uint64_t src_addr5;
+};
+
+struct rte_ioat_xor_ext_hw_desc {
+	uint64_t src_addr6;
+	uint64_t src_addr7;
+	uint64_t src_addr8;
+	uint64_t next;
+	uint64_t reserved[4];
+};
+
+struct rte_ioat_pq_hw_desc {
+	uint32_t size;
+	union {
+		uint32_t control_raw;
+		struct {
+			uint32_t int_enable: 1;
+			uint32_t src_snoop_disable: 1;
+			uint32_t dest_snoop_disable: 1;
+			uint32_t completion_update: 1;
+			uint32_t fence: 1;
+			uint32_t src_count: 3;
+			uint32_t bundle: 1;
+			uint32_t dest_dca: 1;
+			uint32_t hint: 1;
+			uint32_t p_disable: 1;
+			uint32_t q_disable: 1;
+			uint32_t reserved: 11;
+#define RTE_IOAT_OP_PQ 0x89
+#define RTE_IOAT_OP_PQ_VAL 0x8a
+			uint32_t op: 8;
+		} control;
+	} u;
+	uint64_t src_addr;
+	uint64_t p_addr;
+	uint64_t next;
+	uint64_t src_addr2;
+	uint64_t src_addr3;
+	uint8_t  coef[8];
+	uint64_t q_addr;
+};
+
+struct rte_ioat_pq_ext_hw_desc {
+	uint64_t src_addr4;
+	uint64_t src_addr5;
+	uint64_t src_addr6;
+	uint64_t next;
+	uint64_t src_addr7;
+	uint64_t src_addr8;
+	uint64_t reserved[2];
+};
+
+struct rte_ioat_pq_update_hw_desc {
+	uint32_t size;
+	union {
+		uint32_t control_raw;
+		struct {
+			uint32_t int_enable: 1;
+			uint32_t src_snoop_disable: 1;
+			uint32_t dest_snoop_disable: 1;
+			uint32_t completion_update: 1;
+			uint32_t fence: 1;
+			uint32_t src_cnt: 3;
+			uint32_t bundle: 1;
+			uint32_t dest_dca: 1;
+			uint32_t hint: 1;
+			uint32_t p_disable: 1;
+			uint32_t q_disable: 1;
+			uint32_t reserved: 3;
+			uint32_t coef: 8;
+#define RTE_IOAT_OP_PQ_UP 0x8b
+			uint32_t op: 8;
+		} control;
+	} u;
+	uint64_t src_addr;
+	uint64_t p_addr;
+	uint64_t next;
+	uint64_t src_addr2;
+	uint64_t p_src;
+	uint64_t q_src;
+	uint64_t q_addr;
+};
+
+struct rte_ioat_raw_hw_desc {
+	uint64_t field[8];
+};
+
+union rte_ioat_hw_desc {
+	struct rte_ioat_raw_hw_desc raw;
+	struct rte_ioat_generic_hw_desc generic;
+	struct rte_ioat_dma_hw_desc dma;
+	struct rte_ioat_fill_hw_desc fill;
+	struct rte_ioat_xor_hw_desc xor_desc;
+	struct rte_ioat_xor_ext_hw_desc xor_ext;
+	struct rte_ioat_pq_hw_desc pq;
+	struct rte_ioat_pq_ext_hw_desc pq_ext;
+	struct rte_ioat_pq_update_hw_desc pq_update;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* RTE_IOAT_SPEC_H */
