[dpdk-dev] [PATCH v2] compress/isal: ISA-L compression PMD
Lee Daly
lee.daly at intel.com
Fri Apr 6 20:13:08 CEST 2018
Compression PMD, which utilizes Intel’s ISA-L compression library.
The driver written under the DPDK compression API, compressdev,
and therefore has dependencies on it, as well as the Intel's ISA-L library.
V2:
- Changes to keep in compliance with compressdev API,
- Enable meson build system.
- General rework & fixes.
- Documentation.
Future V3 for this release:
- Split into patchset
Signed-off-by: Lee Daly <lee.daly at intel.com>
---
MAINTAINERS | 11 +
config/common_base | 5 +
devtools/test-build.sh | 4 +
doc/guides/compressdevs/features/default.ini | 43 ++
doc/guides/compressdevs/features/isal.ini | 41 ++
doc/guides/compressdevs/index.rst | 13 +
doc/guides/compressdevs/isal.rst | 95 ++++
doc/guides/compressdevs/overview.rst | 13 +
doc/guides/compressdevs/overview_feature_table.txt | 81 ++++
doc/guides/index.rst | 1 +
drivers/Makefile | 2 +
drivers/compress/Makefile | 9 +
drivers/compress/isal/Makefile | 31 ++
drivers/compress/isal/isa-l_compress_pmd.c | 509 +++++++++++++++++++++
drivers/compress/isal/isa-l_compress_pmd_ops.c | 337 ++++++++++++++
drivers/compress/isal/isa-l_compress_pmd_private.h | 56 +++
drivers/compress/isal/meson.build | 15 +
drivers/compress/isal/rte_pmd_isal_version.map | 3 +
drivers/compress/meson.build | 8 +
drivers/meson.build | 1 +
mk/rte.app.mk | 5 +
21 files changed, 1283 insertions(+)
create mode 100644 doc/guides/compressdevs/features/default.ini
create mode 100644 doc/guides/compressdevs/features/isal.ini
create mode 100644 doc/guides/compressdevs/index.rst
create mode 100644 doc/guides/compressdevs/isal.rst
create mode 100644 doc/guides/compressdevs/overview.rst
create mode 100644 doc/guides/compressdevs/overview_feature_table.txt
create mode 100644 drivers/compress/Makefile
create mode 100644 drivers/compress/isal/Makefile
create mode 100644 drivers/compress/isal/isa-l_compress_pmd.c
create mode 100644 drivers/compress/isal/isa-l_compress_pmd_ops.c
create mode 100644 drivers/compress/isal/isa-l_compress_pmd_private.h
create mode 100644 drivers/compress/isal/meson.build
create mode 100644 drivers/compress/isal/rte_pmd_isal_version.map
create mode 100644 drivers/compress/meson.build
diff --git a/MAINTAINERS b/MAINTAINERS
index ed3251d..dc28288 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -725,6 +725,17 @@ F: drivers/crypto/zuc/
F: doc/guides/cryptodevs/zuc.rst
F: doc/guides/cryptodevs/features/zuc.ini
+Compression Drivers
+-------------------
+M: Pablo de Lara <pablo.de.lara.guarch at intel.com>
+T: git://dpdk.org/next/dpdk-next-crypto
+F: doc/guides/compressdevs/features/default.ini
+
+ISA-L
+M: Lee Daly <lee.daly at intel.com>
+F: drivers/compress/isal/
+F: doc/guides/compressdevs/isal.rst
+F: doc/guides/compressdevs/features/isal.ini
Eventdev Drivers
----------------
diff --git a/config/common_base b/config/common_base
index c09c7cf..1def0d3 100644
--- a/config/common_base
+++ b/config/common_base
@@ -533,6 +533,11 @@ CONFIG_RTE_LIBRTE_PMD_MRVL_CRYPTO=n
CONFIG_RTE_LIBRTE_PMD_MRVL_CRYPTO_DEBUG=n
#
+# Compile PMD for ISA-L device
+#
+CONFIG_RTE_LIBRTE_PMD_ISAL=n
+
+#
# Compile generic security library
#
CONFIG_RTE_LIBRTE_SECURITY=y
diff --git a/devtools/test-build.sh b/devtools/test-build.sh
index 3362edc..66f3ece 100755
--- a/devtools/test-build.sh
+++ b/devtools/test-build.sh
@@ -45,6 +45,7 @@ default_path=$PATH
# - DPDK_DEP_SSL (y/[n])
# - DPDK_DEP_SZE (y/[n])
# - DPDK_DEP_ZLIB (y/[n])
+# - DPDK_DEP_ISAL (y/[n])
# - DPDK_MAKE_JOBS (int)
# - DPDK_NOTIFY (notify-send)
# - FLEXRAN_SDK
@@ -129,6 +130,7 @@ reset_env ()
unset DPDK_DEP_SSL
unset DPDK_DEP_SZE
unset DPDK_DEP_ZLIB
+ unset DPDK_DEP_ISAL
unset AESNI_MULTI_BUFFER_LIB_PATH
unset ARMV8_CRYPTO_LIB_PATH
unset FLEXRAN_SDK
@@ -178,6 +180,8 @@ config () # <directory> <target> <options>
test "$DPDK_DEP_ZLIB" != y || \
sed -ri 's,(BNX2X_PMD=)n,\1y,' $1/.config
sed -ri 's,(NFP_PMD=)n,\1y,' $1/.config
+ test "$DPDK_DEP_ISAL" != y || \
+ sed -ri 's,(ISAL_PMD=)n,\1y,' $1/.config
test "$DPDK_DEP_PCAP" != y || \
sed -ri 's,(PCAP=)n,\1y,' $1/.config
test -z "$ARMV8_CRYPTO_LIB_PATH" || \
diff --git a/doc/guides/compressdevs/features/default.ini b/doc/guides/compressdevs/features/default.ini
new file mode 100644
index 0000000..a24409a
--- /dev/null
+++ b/doc/guides/compressdevs/features/default.ini
@@ -0,0 +1,43 @@
+;
+; Features of a default compression driver.
+;
+; This file defines the features that are valid for inclusion in
+; the other driver files and also the order that they appear in
+; the features table in the documentation.
+;
+[FEATURES]
+HW Accelerated =
+CPU SSE =
+CPU AVX =
+CPU AVX2 =
+CPU AVX512 =
+CPU NEON =
+Stateful =
+By-Pass =
+Chained mbufs =
+;
+; Supported algorithims of the 'ISA-L' compression driver.
+;
+[ALGORITHIM]
+Deflate =
+LZS =
+;
+; Supported checksums of the 'ISA-L' compression driver.
+;
+[CHECKSUMS]
+Adler32 =
+Crc32 =
+Adler32&Crc32 =
+;
+; Supported huffman codes of the 'ISA-L' compression driver.
+;
+[HUFFMAN CODES]
+Default =
+Fixed =
+Dynamic =
+Semi-Dynamic =
+;
+; Supported others of the 'ISA-L' compression driver.
+;
+[OTHERS]
+
diff --git a/doc/guides/compressdevs/features/isal.ini b/doc/guides/compressdevs/features/isal.ini
new file mode 100644
index 0000000..1be801f
--- /dev/null
+++ b/doc/guides/compressdevs/features/isal.ini
@@ -0,0 +1,41 @@
+;
+; Refer to default.ini for the full list of available PMD features.
+;
+; Supported features of 'ISA-L' compression driver.
+;
+[FEATURES]
+HW Accelerated = N
+CPU SSE = Y
+CPU AVX = Y
+CPU AVX2 = Y
+CPU AVX512 = Y
+CPU NEON = N
+Stateful = N
+By-Pass = N
+Chained mbufs = N
+;
+; Supported algorithims of the 'ISA-L' compression driver.
+;
+[ALGORITHIM]
+Deflate = Y
+LZS = N
+;
+; Supported checksums of the 'ISA-L' compression driver.
+;
+[CHECKSUMS]
+Adler32 = Y
+Crc32 = Y
+Adler32&Crc32 = N
+;
+; Supported huffman codes of the 'ISA-L' compression driver.
+;
+[HUFFMAN CODES]
+Default = Y
+Fixed = Y
+Dynamic = N
+Semi-Dynamic = Y
+;
+; Supported others of the 'ISA-L' compression driver.
+;
+[OTHERS]
+
diff --git a/doc/guides/compressdevs/index.rst b/doc/guides/compressdevs/index.rst
new file mode 100644
index 0000000..bc59ce8
--- /dev/null
+++ b/doc/guides/compressdevs/index.rst
@@ -0,0 +1,13 @@
+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright(c) 2018 Intel Corporation.
+
+Compression Device Drivers
+==========================
+
+
+.. toctree::
+ :maxdepth: 2
+ :numbered:
+
+ overview
+ isal
diff --git a/doc/guides/compressdevs/isal.rst b/doc/guides/compressdevs/isal.rst
new file mode 100644
index 0000000..ea36219
--- /dev/null
+++ b/doc/guides/compressdevs/isal.rst
@@ -0,0 +1,95 @@
+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright(c) 2018 Intel Corporation.
+
+ISA-L Compression Poll Mode Driver
+==================================
+
+The ISA-L PMD (**librte_pmd_isal_comp**) provides poll mode compression &
+decompression driver support for utilizing Intel ISA-L library,
+which implements the deflate algorithim for both compression and decompression
+
+Features
+--------
+
+ISA-L PMD has support for:
+
+Compression/Decompression algorithm:
+
+* DEFLATE
+
+Huffman code type:
+
+* DEFAULT
+* FIXED
+* DYNAMIC
+
+Checksum support:
+
+* Adler32
+* CRC32
+
+Window size support:
+
+* 32K
+
+Limitations
+-----------
+
+* Chained mbufs are not supported.
+
+* Compressdev level 0, no compression, is not supported. ISA-L level 0 used for
+
+fixed huffman codes.
+
+* Out of order operations are not supported
+
+Installation
+------------
+
+* To build DPDK with Intel's ISA-L library, the user is required to download
+
+the library from
+
+`<https://github.com/01org/isa-l>`_.
+
+* Once downloaded, the user needs to build the library, the ISA-L autotools
+
+are usualy sufficient::
+
+ ./autogen.sh
+ ./configure
+
+make can be used to install the library on their system, before building DPDK::
+
+ make
+ sudo make install
+
+* To build with meson, the "libisal.pc" file, must be copied into "pkgconfig",
+
+e.g. /usr/lib/pkgconfig or /usr/lib64/pkgconfig depending on your system,
+
+for meson to find the ISA-L library. "libisal.pc" is located in library sources,::
+
+ cp isal/libisal.pc /usr/lib/pkgconfig/
+
+instructions on how to download below.
+
+
+Initialization
+--------------
+
+In order to enable this virtual compression PMD, user must:
+
+* Set CONFIG_RTE_LIBRTE_PMD_ISAL=y in config/common_base.
+
+To use the PMD in an application, user must:
+
+* Call rte_vdev_init("compress_isal") within the application.
+
+* Use --vdev="compress_isal" in the EAL options, which will call rte_vdev_init() internally.
+
+The following parameters (all optional) can be provided in the previous two calls:
+
+* socket_id: Specify the socket where the memory for the device is going to be allocated
+ (by default, socket_id will be the socket where the core that is creating the PMD is running on).
+
diff --git a/doc/guides/compressdevs/overview.rst b/doc/guides/compressdevs/overview.rst
new file mode 100644
index 0000000..b656af4
--- /dev/null
+++ b/doc/guides/compressdevs/overview.rst
@@ -0,0 +1,13 @@
+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright(c) 2018 Intel Corporation.
+
+Compression Device Supported Functionality Matrices
+===================================================
+
+Supported Feature Flags
+-----------------------
+
+.. _table_compression_pmd_features:
+
+.. include:: overview_feature_table.txt
+
diff --git a/doc/guides/compressdevs/overview_feature_table.txt b/doc/guides/compressdevs/overview_feature_table.txt
new file mode 100644
index 0000000..b775124
--- /dev/null
+++ b/doc/guides/compressdevs/overview_feature_table.txt
@@ -0,0 +1,81 @@
+
+.. raw:: html
+
+ <style>
+ .wy-nav-content {
+ opacity: .99;
+ }
+ table#id1 {
+ cursor: default;
+ overflow: hidden;
+ }
+ table#id1 th, table#id1 td {
+ text-align: center;
+ }
+ table#id1 th {
+ font-size: 80%;
+ white-space: pre-wrap;
+ vertical-align: top;
+ padding: 0.5em 0;
+ min-width: 0.9em;
+ width: 2em;
+ }
+ table#id1 col:first-child {
+ width: 0;
+ }
+ table#id1 th:first-child {
+ vertical-align: bottom;
+ }
+ table#id1 td {
+ font-size: 70%;
+ padding: 1px;
+ }
+ table#id1 td:first-child {
+ padding-left: 1em;
+ text-align: left;
+ }
+ table#id1 tr:nth-child(2n-1) td {
+ background-color: rgba(210, 210, 210, 0.2);
+ }
+ table#id1 th:not(:first-child):hover,
+ table#id1 td:not(:first-child):hover {
+ position: relative;
+ }
+ table#id1 th:not(:first-child):hover::after,
+ table#id1 td:not(:first-child):hover::after {
+ content: '';
+ height: 6000px;
+ top: -3000px;
+ width: 100%;
+ left: 0;
+ position: absolute;
+ z-index: -1;
+ background-color: #ffb;
+ }
+ table#id1 tr:hover td {
+ background-color: #ffb;
+ }
+ </style>
+
+.. table:: Features availability in compress drivers
+
+ ========================= =
+ Feature i
+ s
+ a
+ -
+ l
+
+ ========================= =
+ Symmetric compression Y
+ Sym operation chaining
+ HW Accelerated
+ Protocol offload
+ CPU SSE Y
+ CPU AVX Y
+ CPU AVX2 Y
+ CPU AVX512 Y
+ CPU NEON
+ CPU ARM CE
+ Mbuf scatter gather
+ ========================= =
diff --git a/doc/guides/index.rst b/doc/guides/index.rst
index d60529d..18fe0ec 100644
--- a/doc/guides/index.rst
+++ b/doc/guides/index.rst
@@ -17,6 +17,7 @@ DPDK documentation
nics/index
bbdevs/index
cryptodevs/index
+ compressdevs/index
eventdevs/index
mempool/index
platform/index
diff --git a/drivers/Makefile b/drivers/Makefile
index 3d9f86b..c88638c 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -13,6 +13,8 @@ DIRS-$(CONFIG_RTE_LIBRTE_BBDEV) += baseband
DEPDIRS-baseband := common bus mempool
DIRS-$(CONFIG_RTE_LIBRTE_CRYPTODEV) += crypto
DEPDIRS-crypto := common bus mempool
+DIRS-$(CONFIG_RTE_LIBRTE_COMPRESSDEV) += compress
+DEPDIRS-compress := bus mempool
DIRS-$(CONFIG_RTE_LIBRTE_EVENTDEV) += event
DEPDIRS-event := common bus mempool net
DIRS-$(CONFIG_RTE_LIBRTE_RAWDEV) += raw
diff --git a/drivers/compress/Makefile b/drivers/compress/Makefile
new file mode 100644
index 0000000..4fff2c7
--- /dev/null
+++ b/drivers/compress/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Intel Corporation
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+DIRS-$(CONFIG_RTE_LIBRTE_PMD_ISAL) += isal
+
+include $(RTE_SDK)/mk/rte.subdir.mk
+
diff --git a/drivers/compress/isal/Makefile b/drivers/compress/isal/Makefile
new file mode 100644
index 0000000..7673429
--- /dev/null
+++ b/drivers/compress/isal/Makefile
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Intel Corporation
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+# library name
+LIB = librte_pmd_isal_comp.a
+
+# build flags
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+CFLAGS += -DALLOW_EXPERIMENTAL_API
+
+# external library dependencies
+LDLIBS += -lisal
+LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
+LDLIBS += -lrte_compressdev
+LDLIBS += -lrte_bus_vdev
+
+# library version
+LIBABIVER := 1
+
+# versioning export map
+EXPORT_MAP := rte_pmd_isal_version.map
+
+# library source files
+SRCS-$(CONFIG_RTE_LIBRTE_PMD_ISAL) += isa-l_compress_pmd.c
+SRCS-$(CONFIG_RTE_LIBRTE_PMD_ISAL) += isa-l_compress_pmd_ops.c
+
+# export include files
+include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/compress/isal/isa-l_compress_pmd.c b/drivers/compress/isal/isa-l_compress_pmd.c
new file mode 100644
index 0000000..708c204
--- /dev/null
+++ b/drivers/compress/isal/isa-l_compress_pmd.c
@@ -0,0 +1,509 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+#include <isa-l.h>
+#include <math.h>
+
+#include <rte_common.h>
+#include <rte_eal.h>
+#include <rte_compressdev_pmd.h>
+#include <rte_bus_vdev.h>
+#include <rte_malloc.h>
+
+#include "isa-l_compress_pmd_private.h"
+
+#define RTE_COMP_ISAL_WINDOW_SIZE 15
+#define RTE_COMP_ISAL_LEVEL_ZERO 0 /* ISA-L Level 0 used for fixed Huffman */
+#define RTE_COMP_ISAL_LEVEL_ONE 1
+#define RTE_COMP_ISAL_LEVEL_TWO 2
+#define RTE_COMP_ISAL_LEVEL_THREE 3 /* Optimised for AVX512 only */
+
+static uint8_t compdev_driver_id;
+int isal_logtype_driver;
+
+/* Verify and set private xform parameters */
+int
+isal_comp_set_priv_xform_parameters(struct isal_priv_xform *priv_xform,
+ const struct rte_comp_xform *xform)
+{
+ if (xform == NULL)
+ return -EINVAL;
+
+ /* Check for chained xforms */
+ if (xform->next != NULL) {
+ ISAL_PMD_LOG(ERR, "Chained xforms not supported\n");
+ return -ENOTSUP;
+ }
+
+ /* Set compression private xform variables */
+ if (xform->type == RTE_COMP_COMPRESS) {
+ /* Set private xform type - COMPRESS/DECOMPRESS */
+ priv_xform->type = RTE_COMP_COMPRESS;
+
+ /* Set private xform algorithm */
+ if (xform->compress.algo != RTE_COMP_ALGO_DEFLATE) {
+ if (xform->compress.algo == RTE_COMP_ALGO_NULL) {
+ ISAL_PMD_LOG(ERR, "By-pass not supported\n");
+ return -ENOTSUP;
+ }
+ ISAL_PMD_LOG(ERR, "Algorithm not supported\n");
+ return -ENOTSUP;
+ }
+ priv_xform->compress.algo = RTE_COMP_ALGO_DEFLATE;
+
+ /* Set private xform checksum */
+ switch (xform->compress.chksum) {
+ case(RTE_COMP_CHECKSUM_NONE):
+ priv_xform->compress.chksum = RTE_COMP_CHECKSUM_NONE;
+ break;
+ case(RTE_COMP_CHECKSUM_ADLER32):
+ priv_xform->compress.chksum = RTE_COMP_CHECKSUM_ADLER32;
+ break;
+ case(RTE_COMP_CHECKSUM_CRC32):
+ priv_xform->compress.chksum = RTE_COMP_CHECKSUM_CRC32;
+ break;
+ default:
+ ISAL_PMD_LOG(ERR, "Checksum not supported\n");
+ return -ENOTSUP;
+ }
+
+ /* Set private xform window size, 32K supported */
+ if (xform->compress.window_size == RTE_COMP_ISAL_WINDOW_SIZE)
+ priv_xform->compress.window_size =
+ RTE_COMP_ISAL_WINDOW_SIZE;
+ else {
+ ISAL_PMD_LOG(ERR, "Window size not supported\n");
+ return -ENOTSUP;
+ }
+
+ /* Set private xform huffman type */
+ switch (xform->compress.deflate.huffman) {
+ case(RTE_COMP_HUFFMAN_DEFAULT):
+ priv_xform->compress.deflate.huffman =
+ RTE_COMP_HUFFMAN_DEFAULT;
+ break;
+ case(RTE_COMP_HUFFMAN_FIXED):
+ priv_xform->compress.deflate.huffman =
+ RTE_COMP_HUFFMAN_FIXED;
+ break;
+ case(RTE_COMP_HUFFMAN_DYNAMIC):
+ priv_xform->compress.deflate.huffman =
+ RTE_COMP_HUFFMAN_DYNAMIC;
+ break;
+ default:
+ ISAL_PMD_LOG(ERR, "Huffman code not supported\n");
+ return -ENOTSUP;
+ }
+
+ /* Set private xform level.
+ * Checking compliance with compressdev API, -1 <= level => 9
+ */
+ if (xform->compress.level < RTE_COMP_LEVEL_PMD_DEFAULT ||
+ xform->compress.level > RTE_COMP_LEVEL_MAX) {
+ ISAL_PMD_LOG(ERR, "Compression level out of range\n");
+ return -EINVAL;
+ }
+ /* Check for Compressdev API level 0, No compression
+ * not supported in ISA-L
+ */
+ else if (xform->compress.level == RTE_COMP_LEVEL_NONE) {
+ ISAL_PMD_LOG(ERR, "No Compression not supported\n");
+ return -ENOTSUP;
+ }
+ /* If using fixed huffman code, level must be 0 */
+ else if (priv_xform->compress.deflate.huffman ==
+ RTE_COMP_HUFFMAN_FIXED) {
+ ISAL_PMD_LOG(DEBUG, "ISA-L level 0 used due to a"
+ " fixed huffman code\n");
+ priv_xform->compress.level = RTE_COMP_ISAL_LEVEL_ZERO;
+ } else {
+ /* Mapping API levels to ISA-L levels 1,2 & 3 */
+ switch (xform->compress.level) {
+ case RTE_COMP_LEVEL_PMD_DEFAULT:
+ /* Default is 1 if not using fixed huffman */
+ priv_xform->compress.level =
+ RTE_COMP_ISAL_LEVEL_ONE;
+ break;
+ case RTE_COMP_LEVEL_MIN:
+ priv_xform->compress.level =
+ RTE_COMP_ISAL_LEVEL_ONE;
+ break;
+ case RTE_COMP_ISAL_LEVEL_TWO:
+ priv_xform->compress.level =
+ RTE_COMP_ISAL_LEVEL_TWO;
+ break;
+ /* Level 3 or higher requested */
+ default:
+ /* Check for AVX512, to use ISA-L level 3 */
+ if (rte_cpu_get_flag_enabled(
+ RTE_CPUFLAG_AVX512F))
+ priv_xform->compress.level =
+ RTE_COMP_ISAL_LEVEL_THREE;
+ /* Check for AVX2, to use ISA-L level 3 */
+ else if (rte_cpu_get_flag_enabled(
+ RTE_CPUFLAG_AVX2))
+ priv_xform->compress.level =
+ RTE_COMP_ISAL_LEVEL_THREE;
+ else{
+ ISAL_PMD_LOG(DEBUG, "Requested ISA-L level"
+ " 3 or above; Level 3 optimized"
+ " for AVX512 & AVX2 only."
+ " level changed to 2.\n");
+ priv_xform->compress.level =
+ RTE_COMP_ISAL_LEVEL_TWO;
+ }
+ }
+ }
+ }
+
+ /* Set decompression private xform variables */
+ else if (xform->type == RTE_COMP_DECOMPRESS) {
+
+ /* Set private xform type - COMPRESS/DECOMPRESS */
+ priv_xform->type = RTE_COMP_DECOMPRESS;
+
+ /* Set private xform algorithm */
+ if (xform->decompress.algo != RTE_COMP_ALGO_DEFLATE) {
+ if (xform->decompress.algo == RTE_COMP_ALGO_NULL) {
+ ISAL_PMD_LOG(ERR, "By pass not supported\n");
+ return -ENOTSUP;
+ }
+ ISAL_PMD_LOG(ERR, "Algorithm not supported\n");
+ return -ENOTSUP;
+ }
+ priv_xform->decompress.algo = RTE_COMP_ALGO_DEFLATE;
+
+ /* Set private xform checksum */
+ switch (xform->decompress.chksum) {
+ case(RTE_COMP_CHECKSUM_NONE):
+ priv_xform->decompress.chksum = RTE_COMP_CHECKSUM_NONE;
+ break;
+ case(RTE_COMP_CHECKSUM_ADLER32):
+ priv_xform->decompress.chksum =
+ RTE_COMP_CHECKSUM_ADLER32;
+ break;
+ case(RTE_COMP_CHECKSUM_CRC32):
+ priv_xform->decompress.chksum = RTE_COMP_CHECKSUM_CRC32;
+ break;
+ default:
+ ISAL_PMD_LOG(ERR, "Checksum not supported\n");
+ return -ENOTSUP;
+ }
+
+ /* Set private xform window size, 32K supported */
+ if (xform->decompress.window_size == RTE_COMP_ISAL_WINDOW_SIZE)
+ priv_xform->decompress.window_size =
+ RTE_COMP_ISAL_WINDOW_SIZE;
+ else {
+ ISAL_PMD_LOG(ERR, "Window size not supported\n");
+ return -ENOTSUP;
+ }
+ }
+ return 0;
+}
+
+/* Stateless Compression Function */
+static int
+process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
+ struct isal_priv_xform *priv_xform)
+{
+ int ret = 0;
+ op->status = RTE_COMP_OP_STATUS_SUCCESS;
+
+ /* Required due to init clearing level_buf */
+ uint8_t *temp_level_buf = qp->stream->level_buf;
+
+ /* Initialize compression stream */
+ isal_deflate_stateless_init(qp->stream);
+
+ qp->stream->level_buf = temp_level_buf;
+
+ qp->stream->flush = NO_FLUSH;
+
+ /* Set op checksum, none by default */
+ if (priv_xform->compress.chksum == RTE_COMP_CHECKSUM_CRC32)
+ qp->stream->gzip_flag = IGZIP_GZIP;
+ else if (priv_xform->compress.chksum == RTE_COMP_CHECKSUM_ADLER32)
+ qp->stream->gzip_flag = IGZIP_ZLIB;
+
+ /* set op level & intermediate level buffer */
+ if (priv_xform->compress.level == RTE_COMP_ISAL_LEVEL_ZERO) {
+ qp->stream->level = ISAL_DEF_MIN_LEVEL;
+ qp->stream->level_buf_size = ISAL_DEF_LVL0_DEFAULT;
+ } else if (priv_xform->compress.level == RTE_COMP_ISAL_LEVEL_ONE) {
+ qp->stream->level = RTE_COMP_ISAL_LEVEL_ONE;
+ qp->stream->level_buf_size = ISAL_DEF_LVL1_DEFAULT;
+ } else if (priv_xform->compress.level == RTE_COMP_ISAL_LEVEL_TWO) {
+ qp->stream->level = RTE_COMP_ISAL_LEVEL_TWO;
+ qp->stream->level_buf_size = ISAL_DEF_LVL2_DEFAULT;
+ } else {
+ qp->stream->level = ISAL_DEF_MAX_LEVEL;
+ qp->stream->level_buf_size = ISAL_DEF_LVL3_DEFAULT;
+ }
+
+ /* Point compression stream structure to input/output buffers */
+ qp->stream->avail_in = op->src.length;
+ qp->stream->next_in = rte_pktmbuf_mtod(op->m_src, uint8_t *);
+ qp->stream->avail_out = op->m_dst->data_len;
+ qp->stream->next_out = rte_pktmbuf_mtod(op->m_dst, uint8_t *);
+ qp->stream->end_of_stream = 1; /* All input consumed in one go */
+
+ if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
+ ISAL_PMD_LOG(ERR, "Invalid source or destination buffers\n");
+ op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+ return -1;
+ }
+
+ /* Set op huffman code */
+ if (priv_xform->compress.deflate.huffman == RTE_COMP_HUFFMAN_FIXED)
+ isal_deflate_set_hufftables(qp->stream, NULL,
+ IGZIP_HUFFTABLE_STATIC);
+ else if (priv_xform->compress.deflate.huffman ==
+ RTE_COMP_HUFFMAN_DEFAULT)
+ isal_deflate_set_hufftables(qp->stream, NULL,
+ IGZIP_HUFFTABLE_DEFAULT);
+ /* Dynamically change the huffman code to suit the input data */
+ else if (priv_xform->compress.deflate.huffman ==
+ RTE_COMP_HUFFMAN_DYNAMIC) {
+ struct isal_hufftables hufftable;
+ struct isal_huff_histogram histogram;
+ memset(&histogram, 0, sizeof(struct isal_huff_histogram));
+
+ isal_update_histogram(qp->stream->next_in, qp->stream->avail_in,
+ &histogram);
+ isal_create_hufftables(&hufftable, &histogram);
+ isal_deflate_set_hufftables(qp->stream, &hufftable,
+ IGZIP_HUFFTABLE_CUSTOM);
+ }
+
+ /* Execute compression operation */
+ ret = isal_deflate_stateless(qp->stream);
+
+ /* Check that input buffer has been fully consumed */
+ if (qp->stream->avail_in != (uint32_t)0) {
+ ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
+ op->status = RTE_COMP_OP_STATUS_ERROR;
+ return -1;
+ }
+
+ if (ret != COMP_OK) {
+ op->status = RTE_COMP_OP_STATUS_ERROR;
+ return ret;
+ }
+
+ op->consumed = op->src.length - qp->stream->avail_in;
+ op->produced = qp->stream->total_out;
+
+ return ret;
+}
+
+/* Stateless Decompression Function */
+static int
+process_isal_inflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
+ struct isal_priv_xform *priv_xform)
+{
+ int ret = 0;
+
+ op->status = RTE_COMP_OP_STATUS_SUCCESS;
+
+ /* Initialize decompression state */
+ isal_inflate_init(qp->state);
+
+ /* Set op checksum, none by default */
+ if (priv_xform->decompress.chksum == RTE_COMP_CHECKSUM_CRC32)
+ qp->state->crc_flag = ISAL_GZIP;
+ else if (priv_xform->decompress.chksum == RTE_COMP_CHECKSUM_ADLER32)
+ qp->state->crc_flag = ISAL_ZLIB;
+
+ /* Point decompression state structure to input/output buffers */
+ qp->state->avail_in = op->src.length;
+ qp->state->next_in = rte_pktmbuf_mtod(op->m_src, uint8_t *);
+ qp->state->avail_out = op->m_dst->data_len;
+ qp->state->next_out = rte_pktmbuf_mtod(op->m_dst, uint8_t *);
+
+ if (unlikely(!qp->state->next_in || !qp->state->next_out)) {
+ ISAL_PMD_LOG(ERR, "Invalid source or destination buffers\n");
+ op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+ return -1;
+ }
+
+ /* Execute decompression operation */
+ ret = isal_inflate_stateless(qp->state);
+
+ /* Check that input buffer has been fully consumed */
+ if (qp->state->avail_in != (uint32_t)0) {
+ ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
+ op->status = RTE_COMP_OP_STATUS_ERROR;
+ return -1;
+ }
+
+ if (ret != ISAL_DECOMP_OK) {
+ op->status = RTE_COMP_OP_STATUS_ERROR;
+ return ret;
+ }
+
+ op->consumed = op->src.length - qp->state->avail_in;
+ op->produced = qp->state->total_out;
+
+ return ret;
+}
+
+/* Process compression operation */
+static int
+process_op(struct isal_comp_qp *qp, struct rte_comp_op *op,
+ struct isal_priv_xform *priv_xform)
+{
+ switch (priv_xform->type) {
+ case RTE_COMP_COMPRESS:
+ process_isal_deflate(op, qp, priv_xform);
+ break;
+ case RTE_COMP_DECOMPRESS:
+ process_isal_inflate(op, qp, priv_xform);
+ break;
+ default:
+ ISAL_PMD_LOG(ERR, "Operation Not Supported\n");
+ return -ENOTSUP;
+ }
+ return 0;
+}
+
+/* Enqueue burst */
+static uint16_t
+isal_comp_pmd_enqueue_burst(void *queue_pair, struct rte_comp_op **ops,
+ uint16_t nb_ops)
+{
+ struct isal_comp_qp *qp = queue_pair;
+ uint16_t i;
+ int retval;
+ uint16_t num_enq = RTE_MIN(qp->num_free_elements, nb_ops);
+
+ for (i = 0; i < num_enq; i++) {
+ retval = process_op(qp, ops[i], ops[i]->private_xform);
+ if (unlikely(retval < 0) ||
+ ops[i]->status != RTE_COMP_OP_STATUS_SUCCESS) {
+ qp->qp_stats.enqueue_err_count++;
+ }
+ }
+
+ retval = rte_ring_enqueue_burst(qp->processed_pkts, (void *)ops,
+ num_enq,
+ NULL);
+ qp->num_free_elements -= retval;
+ qp->qp_stats.enqueued_count += retval;
+
+ return retval;
+}
+
+/* Dequeue burst */
+static uint16_t
+isal_comp_pmd_dequeue_burst(void *queue_pair, struct rte_comp_op **ops,
+ uint16_t nb_ops)
+{
+ struct isal_comp_qp *qp = queue_pair;
+ uint16_t nb_dequeued;
+
+ nb_dequeued = rte_ring_dequeue_burst(qp->processed_pkts, (void **)ops,
+ nb_ops, NULL);
+ qp->num_free_elements += nb_dequeued;
+ qp->qp_stats.dequeued_count += nb_dequeued;
+
+ return nb_dequeued;
+}
+
+/* Create ISA-L compression device */
+static int
+compdev_isal_create(const char *name, struct rte_vdev_device *vdev,
+ struct rte_compressdev_pmd_init_params *init_params)
+{
+ struct rte_compressdev *dev;
+
+ dev = rte_compressdev_pmd_create(name, &vdev->device, init_params);
+ if (dev == NULL) {
+ ISAL_PMD_LOG(ERR, "failed to create compressdev vdev");
+ return -EFAULT;
+ }
+
+ dev->driver_id = compdev_driver_id;
+ dev->dev_ops = isal_compress_pmd_ops;
+
+ /* register rx/tx burst functions for data path */
+ dev->dequeue_burst = isal_comp_pmd_dequeue_burst;
+ dev->enqueue_burst = isal_comp_pmd_enqueue_burst;
+
+ dev->feature_flags = RTE_COMPDEV_FF_CPU_AVX512 |
+ RTE_COMPDEV_FF_CPU_AVX2 |
+ RTE_COMPDEV_FF_CPU_AVX |
+ RTE_COMPDEV_FF_CPU_SSE;
+
+ return 0;
+}
+
+
+/* Initialise ISA-L compression device */
+static int
+compdev_isal_probe(struct rte_vdev_device *dev)
+{
+ struct rte_compressdev_pmd_init_params init_params = {
+ "",
+ sizeof(struct isal_comp_private),
+ rte_socket_id(),
+ };
+ const char *name, *args;
+ int retval;
+
+ name = rte_vdev_device_name(dev);
+ if (name == NULL)
+ return -EINVAL;
+
+ args = rte_vdev_device_args(dev);
+
+ retval = rte_compressdev_pmd_parse_input_args(&init_params, args);
+ if (retval) {
+ ISAL_PMD_LOG(ERR,
+ "Failed to parse initialisation arguments[%s]\n", args);
+ return -EINVAL;
+ }
+
+ return compdev_isal_create(name, dev, &init_params);
+}
+
+static int
+compdev_isal_remove_dev(struct rte_vdev_device *vdev)
+{
+ struct rte_compressdev *compdev;
+ const char *name;
+
+ name = rte_vdev_device_name(vdev);
+ if (name == NULL)
+ return -EINVAL;
+
+ compdev = rte_compressdev_pmd_get_named_dev(name);
+ if (compdev == NULL)
+ return -ENODEV;
+
+ return rte_compressdev_pmd_destroy(compdev);
+}
+
+static struct rte_vdev_driver compdev_isal_pmd_drv = {
+ .probe = compdev_isal_probe,
+ .remove = compdev_isal_remove_dev,
+};
+
+static struct compressdev_driver isal_comp_drv;
+
+RTE_PMD_REGISTER_VDEV(COMPDEV_NAME_ISAL_PMD, compdev_isal_pmd_drv);
+RTE_PMD_REGISTER_PARAM_STRING(COMPDEV_NAME_ISAL_PMD,
+ "socket_id=<int>");
+RTE_PMD_REGISTER_COMPRESSDEV_DRIVER(isal_comp_drv, compdev_isal_pmd_drv,
+ compdev_driver_id);
+
+RTE_INIT(isal_init_log);
+
+static void
+isal_init_log(void)
+{
+ isal_logtype_driver = rte_log_register("comp_isal");
+ if (isal_logtype_driver >= 0)
+ rte_log_set_level(isal_logtype_driver, RTE_LOG_INFO);
+}
diff --git a/drivers/compress/isal/isa-l_compress_pmd_ops.c b/drivers/compress/isal/isa-l_compress_pmd_ops.c
new file mode 100644
index 0000000..40733b1
--- /dev/null
+++ b/drivers/compress/isal/isa-l_compress_pmd_ops.c
@@ -0,0 +1,337 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+#include <rte_common.h>
+#include <rte_malloc.h>
+#include <rte_compressdev_pmd.h>
+
+#include "isa-l_compress_pmd_private.h"
+
+static const struct rte_compressdev_capabilities isal_pmd_capabilities[] = {
+ {
+ .algo = RTE_COMP_ALGO_DEFLATE,
+ .comp_feature_flags = RTE_COMP_FF_ADLER32_CHECKSUM |
+ RTE_COMP_FF_CRC32_CHECKSUM |
+ RTE_COMP_FF_SHAREABLE_PRIV_XFORM,
+ .window_size = {
+ .min = 15,
+ .max = 15,
+ .increment = 0
+ },
+ },
+ RTE_COMP_END_OF_CAPABILITIES_LIST()
+};
+
+/** Configure device */
+static int
+isal_comp_pmd_config(struct rte_compressdev *dev,
+ struct rte_compressdev_config *config)
+{
+ int ret = 0;
+ unsigned int n;
+ char mp_name[RTE_COMPRESSDEV_NAME_MAX_LEN];
+ unsigned int elt_size = sizeof(struct isal_priv_xform);
+ struct isal_comp_private *internals = dev->data->dev_private;
+
+ n = snprintf(mp_name, sizeof(mp_name), "compdev_%d_xform_mp",
+ dev->data->dev_id);
+ if (n > sizeof(mp_name)) {
+ ISAL_PMD_LOG(ERR,
+ "Unable to create unique name for xform mempool");
+ return -ENOMEM;
+ }
+
+ internals->priv_xform_mp = rte_mempool_lookup(mp_name);
+
+ if (internals->priv_xform_mp != NULL) {
+ if (((internals->priv_xform_mp)->elt_size != elt_size) ||
+ ((internals->priv_xform_mp)->size <
+ config->max_nb_priv_xforms)) {
+
+ ISAL_PMD_LOG(ERR, "%s mempool already exists with different"
+ " initialization parameters", mp_name);
+ internals->priv_xform_mp = NULL;
+ return -ENOMEM;
+ }
+ } else { /* First time configuration */
+ internals->priv_xform_mp = rte_mempool_create(
+ mp_name, /* mempool name */
+ /* number of elements*/
+ config->max_nb_priv_xforms,
+ elt_size, /* element size*/
+ 0, /* Cache size*/
+ 0, /* private data size */
+ NULL, /* obj initialization constructor */
+ NULL, /* obj initialization constructor arg */
+ NULL, /**< obj constructor*/
+ NULL, /* obj constructor arg */
+ config->socket_id, /* socket id */
+ 0); /* flags */
+ }
+
+ if (internals->priv_xform_mp == NULL) {
+ ISAL_PMD_LOG(ERR, "%s mempool allocation failed", mp_name);
+ return -ENOMEM;
+ }
+
+ dev->data->dev_private = internals;
+
+ return ret;
+}
+
+/** Start device */
+static int
+isal_comp_pmd_start(__rte_unused struct rte_compressdev *dev)
+{
+ return 0;
+}
+
+/** Stop device */
+static void
+isal_comp_pmd_stop(__rte_unused struct rte_compressdev *dev)
+{
+}
+
+/** Close device */
+static int
+isal_comp_pmd_close(__rte_unused struct rte_compressdev *dev)
+{
+ return 0;
+}
+
+/** Get device statistics */
+static void
+isal_comp_pmd_stats_get(struct rte_compressdev *dev,
+ struct rte_compressdev_stats *stats)
+{
+ uint16_t qp_id;
+
+ for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
+ struct isal_comp_qp *qp = dev->data->queue_pairs[qp_id];
+
+ stats->enqueued_count += qp->qp_stats.enqueued_count;
+ stats->dequeued_count += qp->qp_stats.dequeued_count;
+
+ stats->enqueue_err_count += qp->qp_stats.enqueue_err_count;
+ stats->dequeue_err_count += qp->qp_stats.dequeue_err_count;
+ }
+}
+
+/** Reset device statistics */
+static void
+isal_comp_pmd_stats_reset(struct rte_compressdev *dev)
+{
+ uint16_t qp_id;
+
+ for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
+ struct isal_comp_qp *qp = dev->data->queue_pairs[qp_id];
+
+ memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
+ }
+}
+
+
+/** Get device info */
+static void
+isal_comp_pmd_info_get(struct rte_compressdev *dev,
+ struct rte_compressdev_info *dev_info)
+{
+ if (dev_info != NULL) {
+ dev_info->driver_id = dev->driver_id;
+ dev_info->feature_flags = dev->feature_flags;
+ dev_info->capabilities = isal_pmd_capabilities;
+ }
+}
+
+/** Release queue pair */
+static int
+isal_comp_pmd_qp_release(struct rte_compressdev *dev, uint16_t qp_id)
+{
+ struct isal_comp_qp *qp = dev->data->queue_pairs[qp_id];
+
+ if (qp == NULL)
+ return -EINVAL;
+
+ if (qp->stream != NULL)
+ rte_free(qp->stream);
+
+ if (qp->state != NULL)
+ rte_free(qp->state);
+
+ if (dev->data->queue_pairs[qp_id] != NULL)
+ rte_free(dev->data->queue_pairs[qp_id]);
+
+ return 0;
+}
+
+/** set a unique name for the queue pair based on it's name, dev_id and qp_id */
+static int
+isal_comp_pmd_qp_set_unique_name(struct rte_compressdev *dev,
+ struct isal_comp_qp *qp)
+{
+ unsigned int n = snprintf(qp->name, sizeof(qp->name),
+ "isal_compression_pmd_%u_qp_%u",
+ dev->data->dev_id, qp->id);
+
+ if (n >= sizeof(qp->name))
+ return -1;
+
+ return 0;
+}
+
+/** Create a ring to place process packets on */
+static struct rte_ring *
+isal_comp_pmd_qp_create_processed_pkts_ring(struct isal_comp_qp *qp,
+ unsigned int ring_size, int socket_id)
+{
+ struct rte_ring *r;
+
+ r = rte_ring_lookup(qp->name);
+ if (r) {
+ if (rte_ring_get_size(r) >= ring_size) {
+ ISAL_PMD_LOG(DEBUG,
+ "Reusing existing ring %s for processed packets",
+ qp->name);
+ return r;
+ }
+
+ ISAL_PMD_LOG(ERR,
+ "Unable to reuse existing ring %s for processed packets",
+ qp->name);
+ return NULL;
+ }
+
+ return rte_ring_create(qp->name, ring_size, socket_id,
+ RING_F_SP_ENQ | RING_F_SC_DEQ);
+}
+
+/* Setup a queue pair */
+static int
+isal_comp_pmd_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
+ uint32_t max_inflight_ops, int socket_id)
+{
+ struct isal_comp_qp *qp = NULL;
+ int retval;
+
+ /* Free memory prior to re-allocation if needed. */
+ if (dev->data->queue_pairs[qp_id] != NULL)
+ isal_comp_pmd_qp_release(dev, qp_id);
+
+ /* Allocate the queue pair data structure. */
+ qp = rte_zmalloc_socket("Isa-l compression PMD Queue Pair", sizeof(*qp),
+ RTE_CACHE_LINE_SIZE, socket_id);
+ if (qp == NULL) {
+ ISAL_PMD_LOG(ERR, "Failed to allocate queue pair memory");
+ return (-ENOMEM);
+ }
+
+ /* Initialize memory for compression stream structure */
+ qp->stream = rte_zmalloc_socket("Isa-l compression stream ",
+ sizeof(struct isal_zstream), RTE_CACHE_LINE_SIZE,
+ socket_id);
+
+ /* Initialize memory for compression level buffer */
+ qp->stream->level_buf = rte_zmalloc_socket("Isa-l compression lev_buf",
+ ISAL_DEF_LVL3_DEFAULT, RTE_CACHE_LINE_SIZE,
+ socket_id);
+
+ /* Initialize memory for decompression state structure */
+ qp->state = rte_zmalloc_socket("Isa-l decompression state",
+ sizeof(struct inflate_state), RTE_CACHE_LINE_SIZE,
+ socket_id);
+
+ qp->id = qp_id;
+ dev->data->queue_pairs[qp_id] = qp;
+
+ retval = isal_comp_pmd_qp_set_unique_name(dev, qp);
+ if (retval) {
+ ISAL_PMD_LOG(ERR, "Failed to create unique name for isal "
+ "compression device");
+ goto qp_setup_cleanup;
+ }
+
+ qp->processed_pkts = isal_comp_pmd_qp_create_processed_pkts_ring(qp,
+ max_inflight_ops, socket_id);
+ if (qp->processed_pkts == NULL) {
+ ISAL_PMD_LOG(ERR, "Failed to create unique name for isal "
+ "compression device");
+ goto qp_setup_cleanup;
+ }
+
+ qp->num_free_elements = rte_ring_free_count(qp->processed_pkts);
+
+ memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
+ return 0;
+
+qp_setup_cleanup:
+ if (qp)
+ rte_free(qp);
+
+ return -1;
+}
+
+/** Set private xform data*/
+static int
+isal_comp_pmd_priv_xform_create(struct rte_compressdev *dev,
+ const struct rte_comp_xform *xform,
+ void **priv_xform)
+{
+ int ret;
+ struct isal_comp_private *internals = dev->data->dev_private;
+
+ if (xform == NULL) {
+ ISAL_PMD_LOG(ERR, "Invalid Xform struct");
+ return -EINVAL;
+ }
+
+ if (rte_mempool_get(internals->priv_xform_mp, priv_xform)) {
+ ISAL_PMD_LOG(ERR,
+ "Couldn't get object from private xform mempool");
+ return -ENOMEM;
+ }
+
+ ret = isal_comp_set_priv_xform_parameters(*priv_xform, xform);
+ if (ret != 0) {
+ ISAL_PMD_LOG(ERR, "Failed to configure private xform parameters");
+
+ /* Return private xform to mempool */
+ rte_mempool_put(internals->priv_xform_mp, priv_xform);
+ return ret;
+ }
+ return 0;
+}
+
+/** Clear memory of the private xform so it doesn't leave key material behind */
+static int
+isal_comp_pmd_priv_xform_free(struct rte_compressdev *dev, void *priv_xform)
+{
+ struct isal_comp_private *internals = dev->data->dev_private;
+
+ /* Zero out the whole structure */
+ if (priv_xform) {
+ memset(priv_xform, 0, sizeof(struct isal_priv_xform));
+ rte_mempool_put(internals->priv_xform_mp, priv_xform);
+ }
+ return 0;
+}
+
+struct rte_compressdev_ops isal_pmd_ops = {
+ .dev_configure = isal_comp_pmd_config,
+ .dev_start = isal_comp_pmd_start,
+ .dev_stop = isal_comp_pmd_stop,
+ .dev_close = isal_comp_pmd_close,
+
+ .stats_get = isal_comp_pmd_stats_get,
+ .stats_reset = isal_comp_pmd_stats_reset,
+
+ .dev_infos_get = isal_comp_pmd_info_get,
+
+ .queue_pair_setup = isal_comp_pmd_qp_setup,
+ .queue_pair_release = isal_comp_pmd_qp_release,
+
+ .private_xform_create = isal_comp_pmd_priv_xform_create,
+ .private_xform_free = isal_comp_pmd_priv_xform_free
+};
+
+struct rte_compressdev_ops *isal_compress_pmd_ops = &isal_pmd_ops;
diff --git a/drivers/compress/isal/isa-l_compress_pmd_private.h b/drivers/compress/isal/isa-l_compress_pmd_private.h
new file mode 100644
index 0000000..7af4be1
--- /dev/null
+++ b/drivers/compress/isal/isa-l_compress_pmd_private.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+#include <isa-l.h>
+
+#ifndef _ISAL_COMP_PMD_PRIVATE_H_
+#define _ISAL_COMP_PMD_PRIVATE_H_
+
+#define COMPDEV_NAME_ISAL_PMD compress_isal
+/**< ISA-L comp PMD device name */
+
+extern int isal_logtype_driver;
+#define ISAL_PMD_LOG(level, fmt, args...) \
+ rte_log(RTE_LOG_ ## level, isal_logtype_driver, "%s(): "fmt "\n", \
+ __func__, ##args)
+
+/** private data structure for each isa-l comp device */
+struct isal_comp_private {
+ struct rte_mempool *priv_xform_mp;
+};
+
+/** ISA-L queue pair */
+struct isal_comp_qp {
+ /* Queue Pair Identifier */
+ uint16_t id;
+ /* Unique Queue Pair Name */
+ char name[RTE_COMPRESSDEV_NAME_MAX_LEN];
+ /* Ring for placing process packets */
+ struct rte_ring *processed_pkts;
+ /* Queue pair statistics */
+ struct rte_compressdev_stats qp_stats;
+ /* Compression stream information*/
+ struct isal_zstream *stream;
+ /* Decompression state information*/
+ struct inflate_state *state;
+ /* Number of free elements on ring */
+ uint16_t num_free_elements;
+} __rte_cache_aligned;
+
+/** ISA-L private xform structure */
+struct isal_priv_xform {
+ enum rte_comp_xform_type type;
+ struct rte_comp_compress_xform compress;
+ struct rte_comp_decompress_xform decompress;
+} __rte_cache_aligned;
+
+/** Set and validate NULL comp private xform parameters */
+extern int
+isal_comp_set_priv_xform_parameters(struct isal_priv_xform *priv_xform,
+ const struct rte_comp_xform *xform);
+
+/** device specific operations function pointer structure */
+extern struct rte_compressdev_ops *isal_compress_pmd_ops;
+
+#endif /* _ISAL_COMP_PMD_PRIVATE_H_ */
diff --git a/drivers/compress/isal/meson.build b/drivers/compress/isal/meson.build
new file mode 100644
index 0000000..87a5608
--- /dev/null
+++ b/drivers/compress/isal/meson.build
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2018 Intel Corporation
+
+dep = dependency('libisal', required: false)
+if not dep.found()
+ build =false
+endif
+
+deps += 'bus_vdev'
+sources = files('isa-l_compress_pmd.c', 'isa-l_compress_pmd_ops.c')
+ext_deps += dep
+pkgconfig_extra_libs += '-lisal'
+
+allow_experimental_apis = true
+
diff --git a/drivers/compress/isal/rte_pmd_isal_version.map b/drivers/compress/isal/rte_pmd_isal_version.map
new file mode 100644
index 0000000..de8e412
--- /dev/null
+++ b/drivers/compress/isal/rte_pmd_isal_version.map
@@ -0,0 +1,3 @@
+DPDK_18.05 {
+ local: *;
+};
diff --git a/drivers/compress/meson.build b/drivers/compress/meson.build
new file mode 100644
index 0000000..fb136e1
--- /dev/null
+++ b/drivers/compress/meson.build
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Intel Corporation
+
+drivers = ['isal']
+
+std_deps = ['compressdev'] # compressdev pulls in all other needed deps
+config_flag_fmt = 'RTE_LIBRTE_ at 0@_PMD'
+driver_name_fmt = 'rte_pmd_ at 0@'
diff --git a/drivers/meson.build b/drivers/meson.build
index b146f09..fd42292 100644
--- a/drivers/meson.build
+++ b/drivers/meson.build
@@ -7,6 +7,7 @@ driver_classes = ['common',
'mempool', # depends on common and bus.
'net', # depends on common, bus and mempool.
'crypto', # depends on common, bus and mempool (net in future).
+ 'compress', # depends on common, bus.
'event'] # depends on common, bus, mempool and net.
foreach class:driver_classes
diff --git a/mk/rte.app.mk b/mk/rte.app.mk
index 2585908..9cfb6c1 100644
--- a/mk/rte.app.mk
+++ b/mk/rte.app.mk
@@ -227,6 +227,11 @@ endif # CONFIG_RTE_LIBRTE_DPAA_BUS
endif # CONFIG_RTE_LIBRTE_CRYPTODEV
+ifeq ($(CONFIG_RTE_LIBRTE_COMPRESSDEV),y)
+_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_ISAL) += -lrte_pmd_isal_comp
+_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_ISAL) += -lisal
+endif # CONFIG_RTE_LIBRTE_COMPRESSDEV
+
ifeq ($(CONFIG_RTE_LIBRTE_EVENTDEV),y)
_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_SKELETON_EVENTDEV) += -lrte_pmd_skeleton_event
_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_SW_EVENTDEV) += -lrte_pmd_sw_event
--
2.7.4
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