[dpdk-dev] [PATCH v2 2/2] test/compress: im buffer too small - add unit tests

[Adam Dybkowski <adamx.dybkowski@intel.com>]

This patch adds a new test suite for verification of the "internal
QAT IM buffer too small" case handling. These unit tests are
specific to the QAT PMD only - that's why they are contained in
a separate test suite.

Signed-off-by: Adam Dybkowski <adamx.dybkowski@intel.com>
---
 app/test/test_compressdev.c | 1251 ++++++++++++++++++++++++++++++++---
 1 file changed, 1177 insertions(+), 74 deletions(-)

diff --git a/app/test/test_compressdev.c b/app/test/test_compressdev.c
index 7549135c2..40eb74dd3 100644
--- a/app/test/test_compressdev.c
+++ b/app/test/test_compressdev.c
@@ -1,10 +1,11 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  * Copyright(c) 2018 - 2019 Intel Corporation
  */
-#include <string.h>
-#include <zlib.h>
 #include <math.h>
+#include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+#include <zlib.h>
 #include <unistd.h>
 
 #include <rte_cycles.h>
@@ -18,6 +19,8 @@
 #include "test.h"
 
 #define DIV_CEIL(a, b)  ((a) / (b) + ((a) % (b) != 0))
+#define ENDS_WITH(s, suffix) (strlen(s) >= strlen(suffix) && \
+			     !strcmp(suffix, s + strlen(s) - strlen(suffix)))
 
 #define DEFAULT_WINDOW_SIZE 15
 #define DEFAULT_MEM_LEVEL 8
@@ -30,6 +33,7 @@
  * due to the compress block headers
  */
 #define COMPRESS_BUF_SIZE_RATIO 1.3
+#define COMPRESS_BUF_SIZE_RATIO_DISABLED 1.0
 #define COMPRESS_BUF_SIZE_RATIO_OVERFLOW 0.2
 #define NUM_LARGE_MBUFS 16
 #define SMALL_SEG_SIZE 256
@@ -52,6 +56,25 @@
 #define NUM_BIG_MBUFS 4
 #define BIG_DATA_TEST_SIZE (MAX_DATA_MBUF_SIZE * NUM_BIG_MBUFS / 2)
 
+/* constants for "im buffer" tests start here */
+#define IM_NUM_BIG_MBUFS (512 + 1)
+#define IM_BIG_DATA_TEST_SIZE (MAX_DATA_MBUF_SIZE * 2)
+/* number of mbufs lower than number of inflight ops */
+#define IM_BUF_NUM_MBUFS 3
+/* above threshold (QAT_FALLBACK_THLD) and below max mbuf size */
+#define IM_BUF_DATA_TEST_SIZE_LB 59600
+/* data size smaller than the queue capacity */
+#define IM_BUF_DATA_TEST_SIZE_SGL (MAX_DATA_MBUF_SIZE * IM_BUF_NUM_MBUFS)
+/* number of mbufs bigger than number of inflight ops */
+#define IM_BUF_NUM_MBUFS_OVER (NUM_MAX_INFLIGHT_OPS + 1)
+/* data size bigger than the queue capacity */
+#define IM_BUF_DATA_TEST_SIZE_OVER (MAX_DATA_MBUF_SIZE * IM_BUF_NUM_MBUFS_OVER)
+/* number of mid-size mbufs */
+#define IM_BUF_NUM_MBUFS_MID ((NUM_MAX_INFLIGHT_OPS / 3) + 1)
+/* capacity of mid-size mbufs */
+#define IM_BUF_DATA_TEST_SIZE_MID (MAX_DATA_MBUF_SIZE * IM_BUF_NUM_MBUFS_MID)
+
+
 const char *
 huffman_type_strings[] = {
 	[RTE_COMP_HUFFMAN_DEFAULT]	= "PMD default",
@@ -78,6 +101,11 @@ enum overflow_test {
 	OVERFLOW_ENABLED
 };
 
+enum ratio_switch {
+	RATIO_DISABLED,
+	RATIO_ENABLED
+};
+
 enum operation_type {
 	OPERATION_COMPRESSION,
 	OPERATION_DECOMPRESSION
@@ -88,6 +116,7 @@ struct priv_op_data {
 };
 
 struct comp_testsuite_params {
+	const char *suite_name;
 	struct rte_mempool *large_mbuf_pool;
 	struct rte_mempool *small_mbuf_pool;
 	struct rte_mempool *big_mbuf_pool;
@@ -123,6 +152,7 @@ struct test_data_params {
 	const struct rte_memzone *uncompbuf_memzone;
 	/* overflow test activation */
 	enum overflow_test overflow;
+	enum ratio_switch ratio;
 };
 
 struct test_private_arrays {
@@ -141,6 +171,26 @@ struct test_private_arrays {
 
 static struct comp_testsuite_params testsuite_params = { 0 };
 
+
+static uint8_t
+is_qat_specific_testsuite(void)
+{
+	return strstr(testsuite_params.suite_name, "QAT") != NULL;
+}
+
+static unsigned int
+get_num_big_mbufs(void)
+{
+	return is_qat_specific_testsuite() ? IM_NUM_BIG_MBUFS : NUM_BIG_MBUFS;
+}
+
+static unsigned int
+get_big_data_test_size(void)
+{
+	return is_qat_specific_testsuite() ?
+			IM_BIG_DATA_TEST_SIZE : BIG_DATA_TEST_SIZE;
+}
+
 static void
 testsuite_teardown(void)
 {
@@ -212,7 +262,7 @@ testsuite_setup(void)
 
 	/* Create mempool with big buffers for SGL testing */
 	ts_params->big_mbuf_pool = rte_pktmbuf_pool_create("big_mbuf_pool",
-			NUM_BIG_MBUFS + 1,
+			get_num_big_mbufs() + 1,
 			CACHE_SIZE, 0,
 			MAX_MBUF_SEGMENT_SIZE,
 			rte_socket_id());
@@ -316,6 +366,8 @@ test_compressdev_invalid_configuration(void)
 	};
 	struct rte_compressdev_info dev_info;
 
+	RTE_LOG(INFO, USER1, "This is a negative test, errors are expected\n");
+
 	/* Invalid configuration with 0 queue pairs */
 	memcpy(&invalid_config, &valid_config,
 			sizeof(struct rte_compressdev_config));
@@ -691,7 +743,7 @@ prepare_sgl_bufs(const char *test_buf, struct rte_mbuf *head_buf,
 
 	if (data_ptr != NULL) {
 		/* Copy characters without NULL terminator */
-		strncpy(buf_ptr, data_ptr, data_size);
+		memcpy(buf_ptr, data_ptr, data_size);
 		data_ptr += data_size;
 	}
 	remaining_data -= data_size;
@@ -731,7 +783,7 @@ prepare_sgl_bufs(const char *test_buf, struct rte_mbuf *head_buf,
 		}
 		if (data_ptr != NULL) {
 			/* Copy characters without NULL terminator */
-			strncpy(buf_ptr, data_ptr, data_size);
+			memcpy(buf_ptr, data_ptr, data_size);
 			data_ptr += data_size;
 		}
 		remaining_data -= data_size;
@@ -760,17 +812,20 @@ test_run_enqueue_dequeue(struct rte_comp_op **ops,
 {
 	uint16_t num_enqd, num_deqd, num_total_deqd;
 	unsigned int deqd_retries = 0;
+	int res = 0;
 
 	/* Enqueue and dequeue all operations */
 	num_enqd = rte_compressdev_enqueue_burst(0, 0, ops, num_bufs);
 	if (num_enqd < num_bufs) {
 		RTE_LOG(ERR, USER1,
 			"Some operations could not be enqueued\n");
-		return -1;
+		res = -1;
 	}
 
+	/* dequeue ops even on error (same number of ops as was enqueued) */
+
 	num_total_deqd = 0;
-	do {
+	while (num_total_deqd < num_enqd) {
 		/*
 		 * If retrying a dequeue call, wait for 10 ms to allow
 		 * enough time to the driver to process the operations
@@ -783,7 +838,8 @@ test_run_enqueue_dequeue(struct rte_comp_op **ops,
 			if (deqd_retries == MAX_DEQD_RETRIES) {
 				RTE_LOG(ERR, USER1,
 					"Not all operations could be dequeued\n");
-				return -1;
+				res = -1;
+				break;
 			}
 			usleep(DEQUEUE_WAIT_TIME);
 		}
@@ -792,9 +848,9 @@ test_run_enqueue_dequeue(struct rte_comp_op **ops,
 		num_total_deqd += num_deqd;
 		deqd_retries++;
 
-	} while (num_total_deqd < num_enqd);
+	}
 
-	return 0;
+	return res;
 }
 
 /**
@@ -956,7 +1012,9 @@ test_mbufs_calculate_data_size(
 	/* local variables: */
 	uint32_t data_size;
 	struct priv_op_data *priv_data;
-	float ratio;
+	float ratio_val;
+	enum ratio_switch ratio = test_data->ratio;
+
 	uint8_t not_zlib_compr; /* true if zlib isn't current compression dev */
 	enum overflow_test overflow = test_data->overflow;
 
@@ -973,13 +1031,16 @@ test_mbufs_calculate_data_size(
 			not_zlib_compr = (test_data->zlib_dir == ZLIB_DECOMPRESS
 				|| test_data->zlib_dir == ZLIB_NONE);
 
-			ratio = (not_zlib_compr &&
+			ratio_val = (ratio == RATIO_ENABLED) ?
+					COMPRESS_BUF_SIZE_RATIO :
+					COMPRESS_BUF_SIZE_RATIO_DISABLED;
+
+			ratio_val = (not_zlib_compr &&
 				(overflow == OVERFLOW_ENABLED)) ?
 				COMPRESS_BUF_SIZE_RATIO_OVERFLOW :
-				COMPRESS_BUF_SIZE_RATIO;
-
-			data_size = strlen(test_bufs[i]) * ratio;
+				ratio_val;
 
+			data_size = strlen(test_bufs[i]) * ratio_val;
 		} else {
 			priv_data = (struct priv_op_data *)
 					(ops_processed[i] + 1);
@@ -1085,6 +1146,9 @@ test_setup_output_bufs(
 	} else {
 		for (i = 0; i < num_bufs; i++) {
 
+			enum rte_comp_huffman comp_huffman =
+			ts_params->def_comp_xform->compress.deflate.huffman;
+
 			/* data size calculation */
 			data_size = test_mbufs_calculate_data_size(
 					op_type,
@@ -1094,6 +1158,11 @@ test_setup_output_bufs(
 					test_data,
 					i);
 
+			if (comp_huffman != RTE_COMP_HUFFMAN_DYNAMIC) {
+				if (op_type == OPERATION_DECOMPRESSION)
+					data_size *= COMPRESS_BUF_SIZE_RATIO;
+			}
+
 			/* data allocation */
 			if (buff_type == SGL_BOTH || buff_type == LB_TO_SGL) {
 				ret = prepare_sgl_bufs(NULL, current_bufs[i],
@@ -1192,6 +1261,11 @@ test_deflate_comp_run(const struct interim_data_params *int_data,
 		ops[i]->src.length = rte_pktmbuf_pkt_len(uncomp_bufs[i]);
 		ops[i]->dst.offset = 0;
 
+		RTE_LOG(DEBUG, USER1,
+				"Uncompressed buffer length = %u compressed buffer length = %u",
+				rte_pktmbuf_pkt_len(uncomp_bufs[i]),
+				rte_pktmbuf_pkt_len(comp_bufs[i]));
+
 		if (operation_type == RTE_COMP_OP_STATELESS) {
 			ops[i]->flush_flag = RTE_COMP_FLUSH_FINAL;
 		} else {
@@ -1313,6 +1387,7 @@ test_deflate_comp_run(const struct interim_data_params *int_data,
 	if (ret_status < 0)
 		for (i = 0; i < num_bufs; i++) {
 			rte_comp_op_free(ops[i]);
+			ops[i] = NULL;
 			ops_processed[i] = NULL;
 		}
 
@@ -1431,7 +1506,7 @@ test_deflate_comp_finalize(const struct interim_data_params *int_data,
 			}
 
 			RTE_LOG(ERR, USER1,
-				"Some operations were not successful\n");
+				"Comp: Some operations were not successful\n");
 			return -1;
 		}
 		priv_data = (struct priv_op_data *)(ops_processed[i] + 1);
@@ -1490,6 +1565,7 @@ test_deflate_decomp_run(const struct interim_data_params *int_data,
 
 	/* from test_priv_data: */
 	struct rte_mbuf **uncomp_bufs = test_priv_data->uncomp_bufs;
+	struct rte_mbuf **comp_bufs = test_priv_data->comp_bufs;
 	struct rte_comp_op **ops = test_priv_data->ops;
 	struct rte_comp_op **ops_processed = test_priv_data->ops_processed;
 	void **priv_xforms = test_priv_data->priv_xforms;
@@ -1510,7 +1586,7 @@ test_deflate_decomp_run(const struct interim_data_params *int_data,
 
 	/* Source buffer is the compressed data from the previous operations */
 	for (i = 0; i < num_bufs; i++) {
-		ops[i]->m_src = ops_processed[i]->m_dst;
+		ops[i]->m_src = comp_bufs[i];
 		ops[i]->m_dst = uncomp_bufs[i];
 		ops[i]->src.offset = 0;
 		/*
@@ -1740,6 +1816,10 @@ test_deflate_decomp_finalize(const struct interim_data_params *int_data,
 				RTE_COMP_OP_STATUS_OUT_OF_SPACE_RECOVERABLE
 			    || ops_processed[i]->status ==
 				RTE_COMP_OP_STATUS_SUCCESS)) {
+
+			RTE_LOG(DEBUG, USER1,
+					".............RECOVERABLE\n");
+
 			/* collect the output into all_decomp_data */
 			const void *ptr = rte_pktmbuf_read(
 					ops_processed[i]->m_dst,
@@ -1777,7 +1857,6 @@ test_deflate_decomp_finalize(const struct interim_data_params *int_data,
 				ops[i]->src.length -=
 						ops_processed[i]->consumed;
 				/* repeat the operation */
-				//goto next_step;
 				return 2;
 			} else {
 				/* Compare the original stream with the */
@@ -1808,7 +1887,8 @@ test_deflate_decomp_finalize(const struct interim_data_params *int_data,
 		} else if (ops_processed[i]->status !=
 			   RTE_COMP_OP_STATUS_SUCCESS) {
 			RTE_LOG(ERR, USER1,
-				"Some operations were not successful\n");
+					"Decomp: Some operations were not successful, status = %u\n",
+					ops_processed[i]->status);
 			return -1;
 		}
 		priv_data = (struct priv_op_data *)(ops_processed[i] + 1);
@@ -1986,7 +2066,6 @@ test_deflate_comp_decomp(const struct interim_data_params *int_data,
 			"Compress device does not support DEFLATE\n");
 		return -1;
 	}
-	//test_objects_init(&test_priv_data, num_bufs);
 
 	/* Prepare the source mbufs with the data */
 	ret = test_setup_com_bufs(int_data, test_data, &test_priv_data);
@@ -1995,6 +2074,8 @@ test_deflate_comp_decomp(const struct interim_data_params *int_data,
 		goto exit;
 	}
 
+	RTE_LOG(DEBUG, USER1, "<<< COMPRESSION >>>\n");
+
 /* COMPRESSION  */
 
 	/* Prepare output (destination) mbufs for compressed data */
@@ -2031,6 +2112,8 @@ test_deflate_comp_decomp(const struct interim_data_params *int_data,
 
 /* DECOMPRESSION  */
 
+	RTE_LOG(DEBUG, USER1, "<<< DECOMPRESSION >>>\n");
+
 	/* Prepare output (destination) mbufs for decompressed data */
 	ret = test_setup_output_bufs(
 			OPERATION_DECOMPRESSION,
@@ -2096,7 +2179,6 @@ test_deflate_comp_decomp(const struct interim_data_params *int_data,
 			priv_xforms[i] = NULL;
 		}
 	}
-
 	for (i = 0; i < num_bufs; i++) {
 		rte_pktmbuf_free(uncomp_bufs[i]);
 		rte_pktmbuf_free(comp_bufs[i]);
@@ -2152,7 +2234,8 @@ test_compressdev_deflate_stateless_fixed(void)
 		.zlib_dir = ZLIB_DECOMPRESS,
 		.out_of_space = 0,
 		.big_data = 0,
-		.overflow = OVERFLOW_DISABLED
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_ENABLED
 	};
 
 	for (i = 0; i < RTE_DIM(compress_test_bufs); i++) {
@@ -2223,7 +2306,8 @@ test_compressdev_deflate_stateless_dynamic(void)
 		.zlib_dir = ZLIB_DECOMPRESS,
 		.out_of_space = 0,
 		.big_data = 0,
-		.overflow = OVERFLOW_DISABLED
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_ENABLED
 	};
 
 	for (i = 0; i < RTE_DIM(compress_test_bufs); i++) {
@@ -2278,7 +2362,8 @@ test_compressdev_deflate_stateless_multi_op(void)
 		.zlib_dir = ZLIB_DECOMPRESS,
 		.out_of_space = 0,
 		.big_data = 0,
-		.overflow = OVERFLOW_DISABLED
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_ENABLED
 	};
 
 	/* Compress with compressdev, decompress with Zlib */
@@ -2332,7 +2417,8 @@ test_compressdev_deflate_stateless_multi_level(void)
 		.zlib_dir = ZLIB_DECOMPRESS,
 		.out_of_space = 0,
 		.big_data = 0,
-		.overflow = OVERFLOW_DISABLED
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_ENABLED
 	};
 
 	for (i = 0; i < RTE_DIM(compress_test_bufs); i++) {
@@ -2422,7 +2508,8 @@ test_compressdev_deflate_stateless_multi_xform(void)
 		.zlib_dir = ZLIB_DECOMPRESS,
 		.out_of_space = 0,
 		.big_data = 0,
-		.overflow = OVERFLOW_DISABLED
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_ENABLED
 	};
 
 	/* Compress with compressdev, decompress with Zlib */
@@ -2471,7 +2558,8 @@ test_compressdev_deflate_stateless_sgl(void)
 		.zlib_dir = ZLIB_DECOMPRESS,
 		.out_of_space = 0,
 		.big_data = 0,
-		.overflow = OVERFLOW_DISABLED
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_ENABLED
 	};
 
 	for (i = 0; i < RTE_DIM(compress_test_bufs); i++) {
@@ -2582,7 +2670,8 @@ test_compressdev_deflate_stateless_checksum(void)
 		.zlib_dir = ZLIB_DECOMPRESS,
 		.out_of_space = 0,
 		.big_data = 0,
-		.overflow = OVERFLOW_DISABLED
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_ENABLED
 	};
 
 	/* Check if driver supports crc32 checksum and test */
@@ -2700,7 +2789,8 @@ test_compressdev_out_of_space_buffer(void)
 		.zlib_dir = ZLIB_DECOMPRESS,
 		.out_of_space = 1,  /* run out-of-space test */
 		.big_data = 0,
-		.overflow = OVERFLOW_DISABLED
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_ENABLED
 	};
 	/* Compress with compressdev, decompress with Zlib */
 	test_data.zlib_dir = ZLIB_DECOMPRESS;
@@ -2742,7 +2832,7 @@ test_compressdev_deflate_stateless_dynamic_big(void)
 	struct comp_testsuite_params *ts_params = &testsuite_params;
 	uint16_t i = 0;
 	int ret;
-	int j;
+	unsigned int j;
 	const struct rte_compressdev_capabilities *capab;
 	char *test_buffer = NULL;
 
@@ -2755,7 +2845,7 @@ test_compressdev_deflate_stateless_dynamic_big(void)
 	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
 		return -ENOTSUP;
 
-	test_buffer = rte_malloc(NULL, BIG_DATA_TEST_SIZE, 0);
+	test_buffer = rte_malloc(NULL, get_big_data_test_size(), 0);
 	if (test_buffer == NULL) {
 		RTE_LOG(ERR, USER1,
 			"Can't allocate buffer for big-data\n");
@@ -2778,7 +2868,8 @@ test_compressdev_deflate_stateless_dynamic_big(void)
 		.zlib_dir = ZLIB_DECOMPRESS,
 		.out_of_space = 0,
 		.big_data = 1,
-		.overflow = OVERFLOW_DISABLED
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
 	};
 
 	ts_params->def_comp_xform->compress.deflate.huffman =
@@ -2786,9 +2877,9 @@ test_compressdev_deflate_stateless_dynamic_big(void)
 
 	/* fill the buffer with data based on rand. data */
 	srand(BIG_DATA_TEST_SIZE);
-	for (j = 0; j < BIG_DATA_TEST_SIZE - 1; ++j)
+	for (j = 0; j < get_big_data_test_size() - 1; ++j)
 		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
-	test_buffer[BIG_DATA_TEST_SIZE-1] = 0;
+	test_buffer[get_big_data_test_size() - 1] = 0;
 
 	/* Compress with compressdev, decompress with Zlib */
 	test_data.zlib_dir = ZLIB_DECOMPRESS;
@@ -2843,7 +2934,8 @@ test_compressdev_deflate_stateful_decomp(void)
 		.big_data = 0,
 		.decompress_output_block_size = 2000,
 		.decompress_steps_max = 4,
-		.overflow = OVERFLOW_DISABLED
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_ENABLED
 	};
 
 	/* Compress with Zlib, decompress with compressdev */
@@ -2926,7 +3018,8 @@ test_compressdev_deflate_stateful_decomp_checksum(void)
 		.big_data = 0,
 		.decompress_output_block_size = 2000,
 		.decompress_steps_max = 4,
-		.overflow = OVERFLOW_DISABLED
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_ENABLED
 	};
 
 	/* Check if driver supports crc32 checksum and test */
@@ -3139,7 +3232,8 @@ test_compressdev_deflate_stateless_fixed_oos_recoverable(void)
 		.zlib_dir = ZLIB_DECOMPRESS,
 		.out_of_space = 0,
 		.big_data = 0,
-		.overflow = OVERFLOW_ENABLED
+		.overflow = OVERFLOW_ENABLED,
+		.ratio = RATIO_ENABLED
 	};
 
 	for (i = 0; i < RTE_DIM(compress_test_bufs); i++) {
@@ -3176,47 +3270,1056 @@ test_compressdev_deflate_stateless_fixed_oos_recoverable(void)
 	return ret;
 }
 
-static struct unit_test_suite compressdev_testsuite  = {
-	.suite_name = "compressdev unit test suite",
-	.setup = testsuite_setup,
-	.teardown = testsuite_teardown,
-	.unit_test_cases = {
-		TEST_CASE_ST(NULL, NULL,
-			test_compressdev_invalid_configuration),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-			test_compressdev_deflate_stateless_fixed),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-			test_compressdev_deflate_stateless_dynamic),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-			test_compressdev_deflate_stateless_dynamic_big),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-			test_compressdev_deflate_stateless_multi_op),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-			test_compressdev_deflate_stateless_multi_level),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-			test_compressdev_deflate_stateless_multi_xform),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-			test_compressdev_deflate_stateless_sgl),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-			test_compressdev_deflate_stateless_checksum),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-			test_compressdev_out_of_space_buffer),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-			test_compressdev_deflate_stateful_decomp),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-			test_compressdev_deflate_stateful_decomp_checksum),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-			test_compressdev_external_mbufs),
-		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
-		test_compressdev_deflate_stateless_fixed_oos_recoverable),
-		TEST_CASES_END() /**< NULL terminate unit test array */
+static int
+test_compressdev_deflate_im_buffers_LB_1op(void)
+{
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_LB, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for 'im buffer' test\n");
+		return TEST_FAILED;
 	}
-};
+
+	struct interim_data_params int_data = {
+		(const char * const *)&test_buffer,
+		1,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+				/* must be LB to SGL,
+				 * input LB buffer reaches its maximum,
+				 * if ratio 1.3 than another mbuf must be
+				 * created and attached
+				 */
+		.buff_type = LB_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_LB);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_LB - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_FAILED;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+	return ret;
+}
 
 static int
-test_compressdev(void)
+test_compressdev_deflate_im_buffers_LB_2ops_first(void)
 {
-	return unit_test_suite_runner(&compressdev_testsuite);
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+	const char *test_buffers[2];
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_LB, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for 'im buffer' test\n");
+		return TEST_FAILED;
+	}
+
+	test_buffers[0] = test_buffer;
+	test_buffers[1] = compress_test_bufs[0];
+
+	struct interim_data_params int_data = {
+		(const char * const *)test_buffers,
+		2,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+		.buff_type = LB_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_LB);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_LB - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_FAILED;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+	return ret;
+}
+
+static int
+test_compressdev_deflate_im_buffers_LB_2ops_second(void)
+{
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+	const char *test_buffers[2];
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_LB, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for 'im buffer' test\n");
+		return TEST_FAILED;
+	}
+
+	test_buffers[0] = compress_test_bufs[0];
+	test_buffers[1] = test_buffer;
+
+	struct interim_data_params int_data = {
+		(const char * const *)test_buffers,
+		2,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+		.buff_type = LB_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_LB);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_LB - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_FAILED;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+	return ret;
+}
+
+static int
+test_compressdev_deflate_im_buffers_LB_3ops(void)
+{
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+	const char *test_buffers[3];
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_LB, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for 'im buffer' test\n");
+		return TEST_FAILED;
+	}
+
+	test_buffers[0] = compress_test_bufs[0];
+	test_buffers[1] = test_buffer;
+	test_buffers[2] = compress_test_bufs[1];
+
+	struct interim_data_params int_data = {
+		(const char * const *)test_buffers,
+		3,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+		.buff_type = LB_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_LB);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_LB - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_FAILED;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+	return ret;
+}
+
+static int
+test_compressdev_deflate_im_buffers_LB_4ops(void)
+{
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+	const char *test_buffers[4];
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_LB, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for 'im buffer' test\n");
+		return TEST_FAILED;
+	}
+
+	test_buffers[0] = compress_test_bufs[0];
+	test_buffers[1] = test_buffer;
+	test_buffers[2] = compress_test_bufs[1];
+	test_buffers[3] = test_buffer;
+
+	struct interim_data_params int_data = {
+		(const char * const *)test_buffers,
+		4,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+		.buff_type = LB_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_LB);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_LB - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_FAILED;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+	return ret;
+}
+
+
+static int
+test_compressdev_deflate_im_buffers_SGL_1op(void)
+{
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_SGL, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for big-data\n");
+		return TEST_FAILED;
+	}
+
+	struct interim_data_params int_data = {
+		(const char * const *)&test_buffer,
+		1,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+		.buff_type = SGL_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_SGL);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_SGL - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_FAILED;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+	return ret;
+}
+
+static int
+test_compressdev_deflate_im_buffers_SGL_2ops_first(void)
+{
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+	const char *test_buffers[2];
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_SGL, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for big-data\n");
+		return TEST_FAILED;
+	}
+
+	test_buffers[0] = test_buffer;
+	test_buffers[1] = compress_test_bufs[0];
+
+	struct interim_data_params int_data = {
+		(const char * const *)test_buffers,
+		2,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+		.buff_type = SGL_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_SGL);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_SGL - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_FAILED;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+	return ret;
+}
+
+static int
+test_compressdev_deflate_im_buffers_SGL_2ops_second(void)
+{
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+	const char *test_buffers[2];
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_SGL, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for big-data\n");
+		return TEST_FAILED;
+	}
+
+	test_buffers[0] = compress_test_bufs[0];
+	test_buffers[1] = test_buffer;
+
+	struct interim_data_params int_data = {
+		(const char * const *)test_buffers,
+		2,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+		.buff_type = SGL_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_SGL);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_SGL - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_FAILED;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+	return ret;
+}
+
+static int
+test_compressdev_deflate_im_buffers_SGL_3ops(void)
+{
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+	const char *test_buffers[3];
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_SGL, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for big-data\n");
+		return TEST_FAILED;
+	}
+
+	test_buffers[0] = compress_test_bufs[0];
+	test_buffers[1] = test_buffer;
+	test_buffers[2] = compress_test_bufs[1];
+
+	struct interim_data_params int_data = {
+		(const char * const *)test_buffers,
+		3,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+		.buff_type = SGL_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_SGL);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_SGL - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_FAILED;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+	return ret;
+}
+
+
+static int
+test_compressdev_deflate_im_buffers_SGL_4ops(void)
+{
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+	const char *test_buffers[4];
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_SGL, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for big-data\n");
+		return TEST_FAILED;
+	}
+
+	test_buffers[0] = compress_test_bufs[0];
+	test_buffers[1] = test_buffer;
+	test_buffers[2] = compress_test_bufs[1];
+	test_buffers[3] = test_buffer;
+
+	struct interim_data_params int_data = {
+		(const char * const *)test_buffers,
+		4,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+		.buff_type = SGL_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_SGL);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_SGL - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_FAILED;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+	return ret;
+}
+
+static int
+test_compressdev_deflate_im_buffers_SGL_over_1op(void)
+{
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+
+	RTE_LOG(INFO, USER1, "This is a negative test, errors are expected\n");
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_OVER, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for big-data\n");
+		return TEST_FAILED;
+	}
+
+	struct interim_data_params int_data = {
+		(const char * const *)&test_buffer,
+		1,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+		.buff_type = SGL_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_OVER);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_OVER - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_SUCCESS;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+
+	return ret;
+}
+
+
+static int
+test_compressdev_deflate_im_buffers_SGL_over_2ops_first(void)
+{
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+	const char *test_buffers[2];
+
+	RTE_LOG(INFO, USER1, "This is a negative test, errors are expected\n");
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_OVER, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for big-data\n");
+		return TEST_FAILED;
+	}
+
+	test_buffers[0] = test_buffer;
+	test_buffers[1] = compress_test_bufs[0];
+
+	struct interim_data_params int_data = {
+		(const char * const *)test_buffers,
+		2,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+		.buff_type = SGL_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_OVER);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_OVER - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_SUCCESS;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+	return ret;
+}
+
+static int
+test_compressdev_deflate_im_buffers_SGL_over_2ops_second(void)
+{
+	struct comp_testsuite_params *ts_params = &testsuite_params;
+	uint16_t i = 0;
+	int ret = TEST_SUCCESS;
+	int j;
+	const struct rte_compressdev_capabilities *capab;
+	char *test_buffer = NULL;
+	const char *test_buffers[2];
+
+	RTE_LOG(INFO, USER1, "This is a negative test, errors are expected\n");
+
+	capab = rte_compressdev_capability_get(0, RTE_COMP_ALGO_DEFLATE);
+	TEST_ASSERT(capab != NULL, "Failed to retrieve device capabilities");
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_HUFFMAN_DYNAMIC) == 0)
+		return -ENOTSUP;
+
+	if ((capab->comp_feature_flags & RTE_COMP_FF_OOP_SGL_IN_SGL_OUT) == 0)
+		return -ENOTSUP;
+
+	test_buffer = rte_malloc(NULL, IM_BUF_DATA_TEST_SIZE_OVER, 0);
+	if (test_buffer == NULL) {
+		RTE_LOG(ERR, USER1,
+			"Can't allocate buffer for big-data\n");
+		return TEST_FAILED;
+	}
+
+	test_buffers[0] = compress_test_bufs[0];
+	test_buffers[1] = test_buffer;
+
+	struct interim_data_params int_data = {
+		(const char * const *)test_buffers,
+		2,
+		&i,
+		&ts_params->def_comp_xform,
+		&ts_params->def_decomp_xform,
+		1
+	};
+
+	struct test_data_params test_data = {
+		.compress_state = RTE_COMP_OP_STATELESS,
+		.decompress_state = RTE_COMP_OP_STATELESS,
+		.buff_type = SGL_BOTH,
+		.zlib_dir = ZLIB_NONE,
+		.out_of_space = 0,
+		.big_data = 1,
+		.overflow = OVERFLOW_DISABLED,
+		.ratio = RATIO_DISABLED
+	};
+
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DYNAMIC;
+
+	/* fill the buffer with data based on rand. data */
+	srand(IM_BUF_DATA_TEST_SIZE_OVER);
+	for (j = 0; j < IM_BUF_DATA_TEST_SIZE_OVER - 1; ++j)
+		test_buffer[j] = (uint8_t)(rand() % ((uint8_t)-1)) | 1;
+
+	/* Compress with compressdev, decompress with compressdev */
+	if (test_deflate_comp_decomp(&int_data, &test_data) < 0) {
+		ret = TEST_SUCCESS;
+		goto end;
+	}
+
+end:
+	ts_params->def_comp_xform->compress.deflate.huffman =
+			RTE_COMP_HUFFMAN_DEFAULT;
+	rte_free(test_buffer);
+	return ret;
+}
+
+static struct unit_test_suite compressdev_testsuite  = {
+	.suite_name = "compressdev unit test suite",
+	.setup = testsuite_setup,
+	.teardown = testsuite_teardown,
+	.unit_test_cases = {
+		TEST_CASE_ST(NULL, NULL,
+			test_compressdev_invalid_configuration),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_stateless_fixed),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_stateless_dynamic),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_stateless_dynamic_big),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_stateless_multi_op),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_stateless_multi_level),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_stateless_multi_xform),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_stateless_sgl),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_stateless_checksum),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_out_of_space_buffer),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_stateful_decomp),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_stateful_decomp_checksum),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_external_mbufs),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+		test_compressdev_deflate_stateless_fixed_oos_recoverable),
+		TEST_CASES_END() /**< NULL terminate unit test array */
+	}
+};
+
+/**********************************/
+
+static struct unit_test_suite compressdev_testsuite_qat  = {
+	.suite_name = "compressdev unit test suite for QAT PMD",
+	.setup = testsuite_setup,
+	.teardown = testsuite_teardown,
+	.unit_test_cases = {
+		/* Positive test cases for IM buffer handling verification */
+
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_im_buffers_LB_1op),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_im_buffers_LB_2ops_first),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_im_buffers_LB_2ops_second),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_im_buffers_LB_3ops),
+
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_im_buffers_LB_4ops),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_im_buffers_SGL_1op),
+
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_im_buffers_SGL_2ops_first),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_im_buffers_SGL_2ops_second),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_im_buffers_SGL_3ops),
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_im_buffers_SGL_4ops),
+
+		/* Negative test cases for IM buffer handling verification */
+
+		/* For this test huge mempool is necessary.
+		 * It tests one case:
+		 * only one op containing big amount of data, so that
+		 * number of requested descriptors higher than number
+		 * of available descriptors (128)
+		 */
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+			test_compressdev_deflate_im_buffers_SGL_over_1op),
+
+		/* For this test huge mempool is necessary.
+		 * 2 ops. First op contains big amount of data:
+		 * number of requested descriptors higher than number
+		 * of available descriptors (128), the second op is
+		 * relatively small. In this case both ops are rejected
+		 */
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+		       test_compressdev_deflate_im_buffers_SGL_over_2ops_first),
+
+		TEST_CASE_ST(generic_ut_setup, generic_ut_teardown,
+		      test_compressdev_deflate_im_buffers_SGL_over_2ops_second),
+
+		TEST_CASES_END() /**< NULL terminate unit test array */
+	}
+};
+
+static int
+test_compressdev(void)
+{
+	testsuite_params.suite_name = compressdev_testsuite.suite_name;
+	return unit_test_suite_runner(&compressdev_testsuite);
+}
+
+static int
+test_compressdev_qat_specific(void)
+{
+	/* All tests are run on device 0. Check if it's QAT PMD. */
+	if (rte_compressdev_count() == 0 ||
+			!ENDS_WITH(rte_compressdev_name_get(0), "qat_comp")) {
+		RTE_LOG(ERR, USER1, "QAT PMD must be loaded. Check if "
+				"CONFIG_RTE_LIBRTE_PMD_QAT is enabled "
+				"in config file to run this testsuite.\n");
+		return TEST_FAILED;
+	}
+
+	testsuite_params.suite_name = compressdev_testsuite_qat.suite_name;
+	return unit_test_suite_runner(&compressdev_testsuite_qat);
 }
 
 REGISTER_TEST_COMMAND(compressdev_autotest, test_compressdev);
+REGISTER_TEST_COMMAND(compressdev_qat_specific, test_compressdev_qat_specific);
-- 
2.17.1