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Diffstat (limited to 'doc/guides/compressdevs/octeontx.rst')
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diff --git a/doc/guides/compressdevs/octeontx.rst b/doc/guides/compressdevs/octeontx.rst new file mode 100644 index 00000000..5a32d5d1 --- /dev/null +++ b/doc/guides/compressdevs/octeontx.rst @@ -0,0 +1,105 @@ +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2018 Cavium Networks. + +Octeontx ZIP Compression Poll Mode Driver +========================================= + +The Octeontx ZIP PMD (**librte_pmd_octeontx_zip**) provides poll mode +compression & decompression driver for ZIP HW offload device, found in +**Cavium OCTEONTX** SoC family. + +More information can be found at `Cavium, Inc Official Website +<http://www.cavium.com/OCTEON-TX_ARM_Processors.html>`_. + +Features +-------- + +Octeontx ZIP PMD has support for: + +Compression/Decompression algorithm: + +* DEFLATE + +Huffman code type: + +* FIXED +* DYNAMIC + +Window size support: + +* 2 to 2^14 + +Limitations +----------- + +* Chained mbufs are not supported. + +Supported OCTEONTX SoCs +----------------------- + +- CN83xx + +Steps To Setup Platform +----------------------- + + Octeontx SDK includes kernel image which provides Octeontx ZIP PF + driver to manage configuration of ZIPVF device + Required version of SDK is "OCTEONTX-SDK-6.2.0-build35" or above. + + SDK can be install by using below command. + #rpm -ivh CTEONTX-SDK-6.2.0-build35.x86_64.rpm --force --nodeps + It will install OCTEONTX-SDK at following default location + /usr/local/Cavium_Networks/OCTEONTX-SDK/ + + For more information on building and booting linux kernel on OCTEONTX + please refer /usr/local/Cavium_Networks/OCTEONTX-SDK/docs/OcteonTX-SDK-UG_6.2.0.pdf. + + SDK and related information can be obtained from: `Cavium support site <https://support.cavium.com/>`_. + +Installation +------------ + +Driver Compilation +~~~~~~~~~~~~~~~~~~ + +To compile the OCTEONTX ZIP PMD for Linux arm64 gcc target, run the +following ``make`` command: + + .. code-block:: console + + cd <DPDK-source-directory> + make config T=arm64-thunderx-linuxapp-gcc install + + +Initialization +-------------- + +The octeontx zip is exposed as pci device which consists of a set of +PCIe VF devices. On EAL initialization, ZIP PCIe VF devices will be +probed. To use the PMD in an application, user must: + +* run dev_bind script to bind eight ZIP PCIe VFs to the ``vfio-pci`` driver: + + .. code-block:: console + + ./usertools/dpdk-devbind.py -b vfio-pci 0001:04:00.1 + ./usertools/dpdk-devbind.py -b vfio-pci 0001:04:00.2 + ./usertools/dpdk-devbind.py -b vfio-pci 0001:04:00.3 + ./usertools/dpdk-devbind.py -b vfio-pci 0001:04:00.4 + ./usertools/dpdk-devbind.py -b vfio-pci 0001:04:00.5 + ./usertools/dpdk-devbind.py -b vfio-pci 0001:04:00.6 + ./usertools/dpdk-devbind.py -b vfio-pci 0001:04:00.7 + ./usertools/dpdk-devbind.py -b vfio-pci 0001:04:01.0 + +* The unit test cases can be tested as below: + + .. code-block:: console + + reserve enough huge pages + cd to the top-level DPDK directory + export RTE_TARGET=arm64-thunderx-linuxapp-gcc + export RTE_SDK=`pwd` + cd to test/test + type the command "make" to compile + run the tests with "./test" + type the command "compressdev_autotest" to test |