[dpdk-dev] [dpdk-dev v7 6/9] compress/qat: add gen specific implementation

[Kai Ji <kai.ji@intel.com>]

From: Fan Zhang <roy.fan.zhang@intel.com>

This patch replaces the mixed QAT compression support
implementation by separate files with shared or individual
implementation for specific QAT generation.

Signed-off-by: Adam Dybkowski <adamx.dybkowski@intel.com>
Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Signed-off-by: Kai Ji <kai.ji@intel.com>
Acked-by: Ciara Power <ciara.power@intel.com>
---
 drivers/common/qat/meson.build               |   4 +-
 drivers/compress/qat/dev/qat_comp_pmd_gen1.c | 176 +++++++++++++++
 drivers/compress/qat/dev/qat_comp_pmd_gen2.c |  30 +++
 drivers/compress/qat/dev/qat_comp_pmd_gen3.c |  30 +++
 drivers/compress/qat/dev/qat_comp_pmd_gen4.c | 213 +++++++++++++++++++
 drivers/compress/qat/dev/qat_comp_pmd_gens.h |  30 +++
 6 files changed, 482 insertions(+), 1 deletion(-)
 create mode 100644 drivers/compress/qat/dev/qat_comp_pmd_gen1.c
 create mode 100644 drivers/compress/qat/dev/qat_comp_pmd_gen2.c
 create mode 100644 drivers/compress/qat/dev/qat_comp_pmd_gen3.c
 create mode 100644 drivers/compress/qat/dev/qat_comp_pmd_gen4.c
 create mode 100644 drivers/compress/qat/dev/qat_comp_pmd_gens.h

diff --git a/drivers/common/qat/meson.build b/drivers/common/qat/meson.build
index 532e0fabb3..8a1c6d64e8 100644
--- a/drivers/common/qat/meson.build
+++ b/drivers/common/qat/meson.build
@@ -62,7 +62,9 @@ includes += include_directories(
 )

 if qat_compress
-    foreach f: ['qat_comp_pmd.c', 'qat_comp.c']
+    foreach f: ['qat_comp_pmd.c', 'qat_comp.c',
+            'dev/qat_comp_pmd_gen1.c', 'dev/qat_comp_pmd_gen2.c',
+            'dev/qat_comp_pmd_gen3.c', 'dev/qat_comp_pmd_gen4.c']
         sources += files(join_paths(qat_compress_relpath, f))
     endforeach
 endif
diff --git a/drivers/compress/qat/dev/qat_comp_pmd_gen1.c b/drivers/compress/qat/dev/qat_comp_pmd_gen1.c
new file mode 100644
index 0000000000..e3e75c8289
--- /dev/null
+++ b/drivers/compress/qat/dev/qat_comp_pmd_gen1.c
@@ -0,0 +1,176 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Intel Corporation
+ */
+
+#include <rte_compressdev.h>
+#include <rte_compressdev_pmd.h>
+
+#include "qat_comp_pmd.h"
+#include "qat_comp.h"
+#include "qat_comp_pmd_gens.h"
+
+#define QAT_NUM_INTERM_BUFS_GEN1 12
+
+const struct rte_compressdev_capabilities qat_gen1_comp_capabilities[] = {
+	{/* COMPRESSION - deflate */
+	 .algo = RTE_COMP_ALGO_DEFLATE,
+	 .comp_feature_flags = RTE_COMP_FF_MULTI_PKT_CHECKSUM |
+				RTE_COMP_FF_CRC32_CHECKSUM |
+				RTE_COMP_FF_ADLER32_CHECKSUM |
+				RTE_COMP_FF_CRC32_ADLER32_CHECKSUM |
+				RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
+				RTE_COMP_FF_HUFFMAN_FIXED |
+				RTE_COMP_FF_HUFFMAN_DYNAMIC |
+				RTE_COMP_FF_OOP_SGL_IN_SGL_OUT |
+				RTE_COMP_FF_OOP_SGL_IN_LB_OUT |
+				RTE_COMP_FF_OOP_LB_IN_SGL_OUT |
+				RTE_COMP_FF_STATEFUL_DECOMPRESSION,
+	 .window_size = {.min = 15, .max = 15, .increment = 0} },
+	{RTE_COMP_ALGO_LIST_END, 0, {0, 0, 0} } };
+
+static int
+qat_comp_dev_config_gen1(struct rte_compressdev *dev,
+		struct rte_compressdev_config *config)
+{
+	struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
+
+	if (RTE_PMD_QAT_COMP_IM_BUFFER_SIZE == 0) {
+		QAT_LOG(WARNING,
+			"RTE_PMD_QAT_COMP_IM_BUFFER_SIZE = 0 in config file, so"
+			"QAT device can't be used for Dynamic Deflate.");
+	} else {
+		comp_dev->interm_buff_mz =
+				qat_comp_setup_inter_buffers(comp_dev,
+					RTE_PMD_QAT_COMP_IM_BUFFER_SIZE);
+		if (comp_dev->interm_buff_mz == NULL)
+			return -ENOMEM;
+	}
+
+	return qat_comp_dev_config(dev, config);
+}
+
+struct rte_compressdev_ops qat_comp_ops_gen1 = {
+
+	/* Device related operations */
+	.dev_configure		= qat_comp_dev_config_gen1,
+	.dev_start		= qat_comp_dev_start,
+	.dev_stop		= qat_comp_dev_stop,
+	.dev_close		= qat_comp_dev_close,
+	.dev_infos_get		= qat_comp_dev_info_get,
+
+	.stats_get		= qat_comp_stats_get,
+	.stats_reset		= qat_comp_stats_reset,
+	.queue_pair_setup	= qat_comp_qp_setup,
+	.queue_pair_release	= qat_comp_qp_release,
+
+	/* Compression related operations */
+	.private_xform_create	= qat_comp_private_xform_create,
+	.private_xform_free	= qat_comp_private_xform_free,
+	.stream_create		= qat_comp_stream_create,
+	.stream_free		= qat_comp_stream_free
+};
+
+struct qat_comp_capabilities_info
+qat_comp_cap_get_gen1(struct qat_pci_device *qat_dev __rte_unused)
+{
+	struct qat_comp_capabilities_info capa_info = {
+		.data = qat_gen1_comp_capabilities,
+		.size = sizeof(qat_gen1_comp_capabilities)
+	};
+	return capa_info;
+}
+
+uint16_t
+qat_comp_get_ram_bank_flags_gen1(void)
+{
+	/* Enable A, B, C, D, and E (CAMs). */
+	return ICP_QAT_FW_COMP_RAM_FLAGS_BUILD(
+			ICP_QAT_FW_COMP_BANK_DISABLED, /* Bank I */
+			ICP_QAT_FW_COMP_BANK_DISABLED, /* Bank H */
+			ICP_QAT_FW_COMP_BANK_DISABLED, /* Bank G */
+			ICP_QAT_FW_COMP_BANK_DISABLED, /* Bank F */
+			ICP_QAT_FW_COMP_BANK_ENABLED,  /* Bank E */
+			ICP_QAT_FW_COMP_BANK_ENABLED,  /* Bank D */
+			ICP_QAT_FW_COMP_BANK_ENABLED,  /* Bank C */
+			ICP_QAT_FW_COMP_BANK_ENABLED,  /* Bank B */
+			ICP_QAT_FW_COMP_BANK_ENABLED); /* Bank A */
+}
+
+int
+qat_comp_set_slice_cfg_word_gen1(struct qat_comp_xform *qat_xform,
+		const struct rte_comp_xform *xform,
+		__rte_unused enum rte_comp_op_type op_type,
+		uint32_t *comp_slice_cfg_word)
+{
+	unsigned int algo, comp_level, direction;
+
+	if (xform->compress.algo == RTE_COMP_ALGO_DEFLATE)
+		algo = ICP_QAT_HW_COMPRESSION_ALGO_DEFLATE;
+	else {
+		QAT_LOG(ERR, "compression algorithm not supported");
+		return -EINVAL;
+	}
+
+	if (qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS) {
+		direction = ICP_QAT_HW_COMPRESSION_DIR_DECOMPRESS;
+		comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_8;
+	} else {
+		direction = ICP_QAT_HW_COMPRESSION_DIR_COMPRESS;
+
+		if (xform->compress.level == RTE_COMP_LEVEL_PMD_DEFAULT)
+			comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_8;
+		else if (xform->compress.level == 1)
+			comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_1;
+		else if (xform->compress.level == 2)
+			comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_4;
+		else if (xform->compress.level == 3)
+			comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_8;
+		else if (xform->compress.level >= 4 &&
+			 xform->compress.level <= 9)
+			comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_16;
+		else {
+			QAT_LOG(ERR, "compression level not supported");
+			return -EINVAL;
+		}
+	}
+
+	comp_slice_cfg_word[0] =
+			ICP_QAT_HW_COMPRESSION_CONFIG_BUILD(
+				direction,
+				/* In CPM 1.6 only valid mode ! */
+				ICP_QAT_HW_COMPRESSION_DELAYED_MATCH_ENABLED,
+				algo,
+				/* Translate level to depth */
+				comp_level,
+				ICP_QAT_HW_COMPRESSION_FILE_TYPE_0);
+
+	return 0;
+}
+
+static unsigned int
+qat_comp_get_num_im_bufs_required_gen1(void)
+{
+	return QAT_NUM_INTERM_BUFS_GEN1;
+}
+
+uint64_t
+qat_comp_get_features_gen1(void)
+{
+	return RTE_COMPDEV_FF_HW_ACCELERATED;
+}
+
+RTE_INIT(qat_comp_pmd_gen1_init)
+{
+	qat_comp_gen_dev_ops[QAT_GEN1].compressdev_ops =
+			&qat_comp_ops_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN1].qat_comp_get_capabilities =
+			qat_comp_cap_get_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN1].qat_comp_get_num_im_bufs_required =
+			qat_comp_get_num_im_bufs_required_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN1].qat_comp_get_ram_bank_flags =
+			qat_comp_get_ram_bank_flags_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN1].qat_comp_set_slice_cfg_word =
+			qat_comp_set_slice_cfg_word_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN1].qat_comp_get_feature_flags =
+			qat_comp_get_features_gen1;
+}
diff --git a/drivers/compress/qat/dev/qat_comp_pmd_gen2.c b/drivers/compress/qat/dev/qat_comp_pmd_gen2.c
new file mode 100644
index 0000000000..fd6c966f26
--- /dev/null
+++ b/drivers/compress/qat/dev/qat_comp_pmd_gen2.c
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Intel Corporation
+ */
+
+#include "qat_comp_pmd.h"
+#include "qat_comp_pmd_gens.h"
+
+#define QAT_NUM_INTERM_BUFS_GEN2 20
+
+static unsigned int
+qat_comp_get_num_im_bufs_required_gen2(void)
+{
+	return QAT_NUM_INTERM_BUFS_GEN2;
+}
+
+RTE_INIT(qat_comp_pmd_gen2_init)
+{
+	qat_comp_gen_dev_ops[QAT_GEN2].compressdev_ops =
+			&qat_comp_ops_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN2].qat_comp_get_capabilities =
+			qat_comp_cap_get_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN2].qat_comp_get_num_im_bufs_required =
+			qat_comp_get_num_im_bufs_required_gen2;
+	qat_comp_gen_dev_ops[QAT_GEN2].qat_comp_get_ram_bank_flags =
+			qat_comp_get_ram_bank_flags_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN2].qat_comp_set_slice_cfg_word =
+			qat_comp_set_slice_cfg_word_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN2].qat_comp_get_feature_flags =
+			qat_comp_get_features_gen1;
+}
diff --git a/drivers/compress/qat/dev/qat_comp_pmd_gen3.c b/drivers/compress/qat/dev/qat_comp_pmd_gen3.c
new file mode 100644
index 0000000000..fccb0941f1
--- /dev/null
+++ b/drivers/compress/qat/dev/qat_comp_pmd_gen3.c
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Intel Corporation
+ */
+
+#include "qat_comp_pmd.h"
+#include "qat_comp_pmd_gens.h"
+
+#define QAT_NUM_INTERM_BUFS_GEN3 64
+
+static unsigned int
+qat_comp_get_num_im_bufs_required_gen3(void)
+{
+	return QAT_NUM_INTERM_BUFS_GEN3;
+}
+
+RTE_INIT(qat_comp_pmd_gen3_init)
+{
+	qat_comp_gen_dev_ops[QAT_GEN3].compressdev_ops =
+			&qat_comp_ops_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN3].qat_comp_get_capabilities =
+			qat_comp_cap_get_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN3].qat_comp_get_num_im_bufs_required =
+			qat_comp_get_num_im_bufs_required_gen3;
+	qat_comp_gen_dev_ops[QAT_GEN3].qat_comp_get_ram_bank_flags =
+			qat_comp_get_ram_bank_flags_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN3].qat_comp_set_slice_cfg_word =
+			qat_comp_set_slice_cfg_word_gen1;
+	qat_comp_gen_dev_ops[QAT_GEN3].qat_comp_get_feature_flags =
+			qat_comp_get_features_gen1;
+}
diff --git a/drivers/compress/qat/dev/qat_comp_pmd_gen4.c b/drivers/compress/qat/dev/qat_comp_pmd_gen4.c
new file mode 100644
index 0000000000..79b2ceb414
--- /dev/null
+++ b/drivers/compress/qat/dev/qat_comp_pmd_gen4.c
@@ -0,0 +1,213 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Intel Corporation
+ */
+
+#include "qat_comp.h"
+#include "qat_comp_pmd.h"
+#include "qat_comp_pmd_gens.h"
+#include "icp_qat_hw_gen4_comp.h"
+#include "icp_qat_hw_gen4_comp_defs.h"
+
+#define QAT_NUM_INTERM_BUFS_GEN4 0
+
+static const struct rte_compressdev_capabilities
+qat_gen4_comp_capabilities[] = {
+	{/* COMPRESSION - deflate */
+	 .algo = RTE_COMP_ALGO_DEFLATE,
+	 .comp_feature_flags = RTE_COMP_FF_MULTI_PKT_CHECKSUM |
+				RTE_COMP_FF_CRC32_CHECKSUM |
+				RTE_COMP_FF_ADLER32_CHECKSUM |
+				RTE_COMP_FF_CRC32_ADLER32_CHECKSUM |
+				RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
+				RTE_COMP_FF_HUFFMAN_FIXED |
+				RTE_COMP_FF_HUFFMAN_DYNAMIC |
+				RTE_COMP_FF_OOP_SGL_IN_SGL_OUT |
+				RTE_COMP_FF_OOP_SGL_IN_LB_OUT |
+				RTE_COMP_FF_OOP_LB_IN_SGL_OUT,
+	 .window_size = {.min = 15, .max = 15, .increment = 0} },
+	{RTE_COMP_ALGO_LIST_END, 0, {0, 0, 0} } };
+
+static int
+qat_comp_dev_config_gen4(struct rte_compressdev *dev,
+		struct rte_compressdev_config *config)
+{
+	/* QAT GEN4 doesn't need preallocated intermediate buffers */
+
+	return qat_comp_dev_config(dev, config);
+}
+
+static struct rte_compressdev_ops qat_comp_ops_gen4 = {
+
+	/* Device related operations */
+	.dev_configure		= qat_comp_dev_config_gen4,
+	.dev_start		= qat_comp_dev_start,
+	.dev_stop		= qat_comp_dev_stop,
+	.dev_close		= qat_comp_dev_close,
+	.dev_infos_get		= qat_comp_dev_info_get,
+
+	.stats_get		= qat_comp_stats_get,
+	.stats_reset		= qat_comp_stats_reset,
+	.queue_pair_setup	= qat_comp_qp_setup,
+	.queue_pair_release	= qat_comp_qp_release,
+
+	/* Compression related operations */
+	.private_xform_create	= qat_comp_private_xform_create,
+	.private_xform_free	= qat_comp_private_xform_free,
+	.stream_create		= qat_comp_stream_create,
+	.stream_free		= qat_comp_stream_free
+};
+
+static struct qat_comp_capabilities_info
+qat_comp_cap_get_gen4(struct qat_pci_device *qat_dev __rte_unused)
+{
+	struct qat_comp_capabilities_info capa_info = {
+		.data = qat_gen4_comp_capabilities,
+		.size = sizeof(qat_gen4_comp_capabilities)
+	};
+	return capa_info;
+}
+
+static uint16_t
+qat_comp_get_ram_bank_flags_gen4(void)
+{
+	return 0;
+}
+
+static int
+qat_comp_set_slice_cfg_word_gen4(struct qat_comp_xform *qat_xform,
+		const struct rte_comp_xform *xform,
+		enum rte_comp_op_type op_type, uint32_t *comp_slice_cfg_word)
+{
+	if (qat_xform->qat_comp_request_type ==
+			QAT_COMP_REQUEST_FIXED_COMP_STATELESS ||
+	    qat_xform->qat_comp_request_type ==
+			QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS) {
+		/* Compression */
+		struct icp_qat_hw_comp_20_config_csr_upper hw_comp_upper_csr;
+		struct icp_qat_hw_comp_20_config_csr_lower hw_comp_lower_csr;
+
+		memset(&hw_comp_upper_csr, 0, sizeof(hw_comp_upper_csr));
+		memset(&hw_comp_lower_csr, 0, sizeof(hw_comp_lower_csr));
+
+		hw_comp_lower_csr.lllbd =
+			ICP_QAT_HW_COMP_20_LLLBD_CTRL_LLLBD_DISABLED;
+
+		if (xform->compress.algo == RTE_COMP_ALGO_DEFLATE) {
+			hw_comp_lower_csr.skip_ctrl =
+				ICP_QAT_HW_COMP_20_BYTE_SKIP_3BYTE_LITERAL;
+
+			if (qat_xform->qat_comp_request_type ==
+				QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS) {
+				hw_comp_lower_csr.algo =
+					ICP_QAT_HW_COMP_20_HW_COMP_FORMAT_ILZ77;
+				hw_comp_lower_csr.lllbd =
+				    ICP_QAT_HW_COMP_20_LLLBD_CTRL_LLLBD_ENABLED;
+			} else {
+				hw_comp_lower_csr.algo =
+				      ICP_QAT_HW_COMP_20_HW_COMP_FORMAT_DEFLATE;
+				hw_comp_upper_csr.scb_ctrl =
+					ICP_QAT_HW_COMP_20_SCB_CONTROL_DISABLE;
+			}
+
+			if (op_type == RTE_COMP_OP_STATEFUL) {
+				hw_comp_upper_csr.som_ctrl =
+				     ICP_QAT_HW_COMP_20_SOM_CONTROL_REPLAY_MODE;
+			}
+		} else {
+			QAT_LOG(ERR, "Compression algorithm not supported");
+			return -EINVAL;
+		}
+
+		switch (xform->compress.level) {
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+		case 5:
+			hw_comp_lower_csr.sd =
+					ICP_QAT_HW_COMP_20_SEARCH_DEPTH_LEVEL_1;
+			hw_comp_lower_csr.hash_col =
+			      ICP_QAT_HW_COMP_20_SKIP_HASH_COLLISION_DONT_ALLOW;
+			break;
+		case 6:
+		case 7:
+		case 8:
+		case RTE_COMP_LEVEL_PMD_DEFAULT:
+			hw_comp_lower_csr.sd =
+					ICP_QAT_HW_COMP_20_SEARCH_DEPTH_LEVEL_6;
+			break;
+		case 9:
+		case 10:
+		case 11:
+		case 12:
+			hw_comp_lower_csr.sd =
+					ICP_QAT_HW_COMP_20_SEARCH_DEPTH_LEVEL_9;
+			break;
+		default:
+			QAT_LOG(ERR, "Compression level not supported");
+			return -EINVAL;
+		}
+
+		hw_comp_lower_csr.abd = ICP_QAT_HW_COMP_20_ABD_ABD_DISABLED;
+		hw_comp_lower_csr.hash_update =
+			ICP_QAT_HW_COMP_20_SKIP_HASH_UPDATE_DONT_ALLOW;
+		hw_comp_lower_csr.edmm =
+		      ICP_QAT_HW_COMP_20_EXTENDED_DELAY_MATCH_MODE_EDMM_ENABLED;
+
+		hw_comp_upper_csr.nice =
+			ICP_QAT_HW_COMP_20_CONFIG_CSR_NICE_PARAM_DEFAULT_VAL;
+		hw_comp_upper_csr.lazy =
+			ICP_QAT_HW_COMP_20_CONFIG_CSR_LAZY_PARAM_DEFAULT_VAL;
+
+		comp_slice_cfg_word[0] =
+				ICP_QAT_FW_COMP_20_BUILD_CONFIG_LOWER(
+					hw_comp_lower_csr);
+		comp_slice_cfg_word[1] =
+				ICP_QAT_FW_COMP_20_BUILD_CONFIG_UPPER(
+					hw_comp_upper_csr);
+	} else {
+		/* Decompression */
+		struct icp_qat_hw_decomp_20_config_csr_lower
+				hw_decomp_lower_csr;
+
+		memset(&hw_decomp_lower_csr, 0, sizeof(hw_decomp_lower_csr));
+
+		if (xform->compress.algo == RTE_COMP_ALGO_DEFLATE)
+			hw_decomp_lower_csr.algo =
+				ICP_QAT_HW_DECOMP_20_HW_DECOMP_FORMAT_DEFLATE;
+		else {
+			QAT_LOG(ERR, "Compression algorithm not supported");
+			return -EINVAL;
+		}
+
+		comp_slice_cfg_word[0] =
+				ICP_QAT_FW_DECOMP_20_BUILD_CONFIG_LOWER(
+					hw_decomp_lower_csr);
+		comp_slice_cfg_word[1] = 0;
+	}
+
+	return 0;
+}
+
+static unsigned int
+qat_comp_get_num_im_bufs_required_gen4(void)
+{
+	return QAT_NUM_INTERM_BUFS_GEN4;
+}
+
+
+RTE_INIT(qat_comp_pmd_gen4_init)
+{
+	qat_comp_gen_dev_ops[QAT_GEN4].compressdev_ops =
+			&qat_comp_ops_gen4;
+	qat_comp_gen_dev_ops[QAT_GEN4].qat_comp_get_capabilities =
+			qat_comp_cap_get_gen4;
+	qat_comp_gen_dev_ops[QAT_GEN4].qat_comp_get_num_im_bufs_required =
+			qat_comp_get_num_im_bufs_required_gen4;
+	qat_comp_gen_dev_ops[QAT_GEN4].qat_comp_get_ram_bank_flags =
+			qat_comp_get_ram_bank_flags_gen4;
+	qat_comp_gen_dev_ops[QAT_GEN4].qat_comp_set_slice_cfg_word =
+			qat_comp_set_slice_cfg_word_gen4;
+	qat_comp_gen_dev_ops[QAT_GEN4].qat_comp_get_feature_flags =
+			qat_comp_get_features_gen1;
+}
diff --git a/drivers/compress/qat/dev/qat_comp_pmd_gens.h b/drivers/compress/qat/dev/qat_comp_pmd_gens.h
new file mode 100644
index 0000000000..67293092ea
--- /dev/null
+++ b/drivers/compress/qat/dev/qat_comp_pmd_gens.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Intel Corporation
+ */
+
+#ifndef _QAT_COMP_PMD_GENS_H_
+#define _QAT_COMP_PMD_GENS_H_
+
+#include <rte_compressdev.h>
+#include <rte_compressdev_pmd.h>
+#include <stdint.h>
+
+#include "qat_comp_pmd.h"
+
+extern const struct rte_compressdev_capabilities qat_gen1_comp_capabilities[];
+
+struct qat_comp_capabilities_info
+qat_comp_cap_get_gen1(struct qat_pci_device *qat_dev);
+
+uint16_t qat_comp_get_ram_bank_flags_gen1(void);
+
+int qat_comp_set_slice_cfg_word_gen1(struct qat_comp_xform *qat_xform,
+		const struct rte_comp_xform *xform,
+		enum rte_comp_op_type op_type,
+		uint32_t *comp_slice_cfg_word);
+
+uint64_t qat_comp_get_features_gen1(void);
+
+extern struct rte_compressdev_ops qat_comp_ops_gen1;
+
+#endif /* _QAT_COMP_PMD_GENS_H_ */
--
2.17.1