[v3,1/3] compress/uadk: Introduce UADK compression driver

diff --git a/MAINTAINERS b/MAINTAINERS
index c9adff9846..8e541d23e5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1213,6 +1213,12 @@  F: drivers/compress/octeontx/
 F: doc/guides/compressdevs/octeontx.rst
 F: doc/guides/compressdevs/features/octeontx.ini
 
+HiSilicon UADK compress
+M: Zhangfei Gao <zhangfei.gao@linaro.org>
+F: drivers/compress/uadk/
+F: doc/guides/compressdevs/uadk.rst
+F: doc/guides/compressdevs/features/uadk.ini
+
 Intel QuickAssist
 M: Kai Ji <kai.ji@intel.com>
 F: drivers/compress/qat/
diff --git a/doc/guides/compressdevs/features/uadk.ini b/doc/guides/compressdevs/features/uadk.ini
new file mode 100644
index 0000000000..0bbdb6c5cf
--- /dev/null
+++ b/doc/guides/compressdevs/features/uadk.ini
@@ -0,0 +1,11 @@ 
+;
+; Refer to default.ini for the full list of available PMD features.
+;
+; Supported features of 'uadk' compression driver.
+;
+[Features]
+HW Accelerated = Y
+Deflate        = Y
+Crc32          = N
+Fixed          = Y
+Dynamic        = Y
diff --git a/doc/guides/compressdevs/index.rst b/doc/guides/compressdevs/index.rst
index 849f211688..87ed4f72a4 100644
--- a/doc/guides/compressdevs/index.rst
+++ b/doc/guides/compressdevs/index.rst
@@ -15,4 +15,5 @@  Compression Device Drivers
     nitrox
     octeontx
     qat_comp
+    uadk
     zlib
diff --git a/doc/guides/compressdevs/uadk.rst b/doc/guides/compressdevs/uadk.rst
new file mode 100644
index 0000000000..02fa3c7667
--- /dev/null
+++ b/doc/guides/compressdevs/uadk.rst
@@ -0,0 +1,79 @@ 
+.. SPDX-License-Identifier: BSD-3-Clause
+   Copyright 2024-2025 Huawei Technologies Co.,Ltd. All rights reserved.
+   Copyright 2024-2025 Linaro ltd.
+
+UADK Compression Poll Mode Driver
+=================================
+
+UADK compression PMD provides poll mode compression & decompression driver
+All compression operations are using UADK library compression API, which is
+algorithm-level API, abstracting accelerators' low-level implementations.
+
+UADK compression PMD relies on `UADK library <https://github.com/Linaro/uadk>`_.
+
+UADK is a framework for user applications to access hardware accelerators.
+UADK relies on IOMMU SVA (Shared Virtual Address) feature,
+which shares the same page table between IOMMU and MMU.
+As a result, the user application can directly use the virtual address for
+device DMA, which enhances performance as well as easy usability.
+
+
+Features
+--------
+
+UADK compression PMD has support for:
+
+Compression/Decompression algorithm:
+
+    * DEFLATE - using Fixed and Dynamic Huffman encoding
+
+Window size support:
+
+    * 32K
+
+
+Test steps
+----------
+
+#. Build UADK
+
+   .. code-block:: console
+
+      git clone https://github.com/Linaro/uadk.git
+      cd uadk
+      mkdir build
+      ./autogen.sh
+      ./configure --prefix=$PWD/build
+      make
+      make install
+
+   .. note::
+
+      Without ``--prefix``, UADK will be installed to ``/usr/local/lib`` by default.
+
+   .. note::
+
+      If get error: "cannot find -lnuma", please install the libnuma-dev.
+
+#. Run pkg-config libwd to ensure env is setup correctly
+
+   .. code-block:: console
+
+      export PKG_CONFIG_PATH=$PWD/build/lib/pkgconfig
+      pkg-config libwd --cflags --libs -I/usr/local/include -L/usr/local/lib -lwd
+
+   .. note::
+
+      export ``PKG_CONFIG_PATH`` is required on demand,
+      not needed if UADK is installed to ``/usr/local/lib``.
+
+#. Build DPDK
+
+   .. code-block:: console
+
+      cd dpdk
+      mkdir build
+      meson setup build (--reconfigure)
+      cd build
+      ninja
+      sudo ninja install
diff --git a/drivers/compress/meson.build b/drivers/compress/meson.build
index b91195b27d..91d7800a4a 100644
--- a/drivers/compress/meson.build
+++ b/drivers/compress/meson.build
@@ -10,6 +10,7 @@  drivers = [
         'mlx5',
         'nitrox',
         'octeontx',
+        'uadk',
         'zlib',
 ]
 
diff --git a/drivers/compress/uadk/meson.build b/drivers/compress/uadk/meson.build
new file mode 100644
index 0000000000..704833bbcf
--- /dev/null
+++ b/drivers/compress/uadk/meson.build
@@ -0,0 +1,30 @@ 
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2024-2025 Huawei Technologies Co.,Ltd. All rights reserved.
+# Copyright 2024-2025 Linaro ltd.
+
+if not is_linux
+    build = false
+    reason = 'only supported on Linux'
+    subdir_done()
+endif
+
+sources = files(
+        'uadk_compress_pmd.c',
+)
+
+deps += 'bus_vdev'
+dep = dependency('libwd_comp', required: false, method: 'pkg-config')
+if not dep.found()
+	build = false
+	reason = 'missing dependency, "libwd_comp"'
+else
+	ext_deps += dep
+endif
+
+dep = dependency('libwd', required: false, method: 'pkg-config')
+if not dep.found()
+    build = false
+    reason = 'missing dependency, "libwd"'
+else
+    ext_deps += dep
+endif
diff --git a/drivers/compress/uadk/uadk_compress_pmd.c b/drivers/compress/uadk/uadk_compress_pmd.c
new file mode 100644
index 0000000000..6ffc22a0d2
--- /dev/null
+++ b/drivers/compress/uadk/uadk_compress_pmd.c
@@ -0,0 +1,75 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2024-2025 Huawei Technologies Co.,Ltd. All rights reserved.
+ * Copyright 2024-2025 Linaro ltd.
+ */
+
+#include <bus_vdev_driver.h>
+#include <rte_compressdev_pmd.h>
+#include <rte_malloc.h>
+
+#include <uadk/wd_comp.h>
+#include <uadk/wd_sched.h>
+
+#include "uadk_compress_pmd_private.h"
+
+static struct rte_compressdev_ops uadk_compress_pmd_ops;
+
+static int
+uadk_compress_probe(struct rte_vdev_device *vdev)
+{
+	struct rte_compressdev_pmd_init_params init_params = {
+		"",
+		rte_socket_id(),
+	};
+	struct rte_compressdev *compressdev;
+	struct uacce_dev *udev;
+	const char *name;
+
+	udev = wd_get_accel_dev("deflate");
+	if (!udev)
+		return -ENODEV;
+
+	name = rte_vdev_device_name(vdev);
+	if (name == NULL)
+		return -EINVAL;
+
+	compressdev = rte_compressdev_pmd_create(name, &vdev->device,
+			sizeof(struct uadk_compress_priv), &init_params);
+	if (compressdev == NULL) {
+		UADK_LOG(ERR, "driver %s: create failed", init_params.name);
+		return -ENODEV;
+	}
+
+	compressdev->dev_ops = &uadk_compress_pmd_ops;
+	compressdev->dequeue_burst = NULL;
+	compressdev->enqueue_burst = NULL;
+	compressdev->feature_flags = RTE_COMPDEV_FF_HW_ACCELERATED;
+
+	return 0;
+}
+
+static int
+uadk_compress_remove(struct rte_vdev_device *vdev)
+{
+	struct rte_compressdev *compressdev;
+	const char *name;
+
+	name = rte_vdev_device_name(vdev);
+	if (name == NULL)
+		return -EINVAL;
+
+	compressdev = rte_compressdev_pmd_get_named_dev(name);
+	if (compressdev == NULL)
+		return -ENODEV;
+
+	return rte_compressdev_pmd_destroy(compressdev);
+}
+
+static struct rte_vdev_driver uadk_compress_pmd = {
+	.probe = uadk_compress_probe,
+	.remove = uadk_compress_remove,
+};
+
+#define UADK_COMPRESS_DRIVER_NAME compress_uadk
+RTE_PMD_REGISTER_VDEV(UADK_COMPRESS_DRIVER_NAME, uadk_compress_pmd);
+RTE_LOG_REGISTER_DEFAULT(uadk_compress_logtype, INFO);
diff --git a/drivers/compress/uadk/uadk_compress_pmd_private.h b/drivers/compress/uadk/uadk_compress_pmd_private.h
new file mode 100644
index 0000000000..88e9075619
--- /dev/null
+++ b/drivers/compress/uadk/uadk_compress_pmd_private.h
@@ -0,0 +1,20 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2024-2025 Huawei Technologies Co.,Ltd. All rights reserved.
+ * Copyright 2024-2025 Linaro ltd.
+ */
+
+#ifndef _UADK_COMPRESS_PMD_PRIVATE_H_
+#define _UADK_COMPRESS_PMD_PRIVATE_H_
+
+struct uadk_compress_priv {
+	bool env_init;
+};
+
+extern int uadk_compress_logtype;
+
+#define UADK_LOG(level, fmt, ...)  \
+	rte_log(RTE_LOG_ ## level, uadk_compress_logtype,  \
+		"%s() line %u: " fmt "\n", __func__, __LINE__,  \
+		## __VA_ARGS__)
+
+#endif /* _UADK_COMPRESS_PMD_PRIVATE_H_ */