diff options
Diffstat (limited to 'doc/guides/cryptodevs/octeontx.rst')
-rw-r--r-- | doc/guides/cryptodevs/octeontx.rst | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/doc/guides/cryptodevs/octeontx.rst b/doc/guides/cryptodevs/octeontx.rst new file mode 100644 index 00000000..660e980c --- /dev/null +++ b/doc/guides/cryptodevs/octeontx.rst @@ -0,0 +1,127 @@ +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2018 Cavium, Inc + +Cavium OCTEON TX Crypto Poll Mode Driver +======================================== + +The OCTEON TX crypto poll mode driver provides support for offloading +cryptographic operations to cryptographic accelerator units on +**OCTEON TX** :sup:`®` family of processors (CN8XXX). The OCTEON TX crypto +poll mode driver enqueues the crypto request to this accelerator and dequeues +the response once the operation is completed. + +Supported Algorithms +-------------------- + +Cipher Algorithms +~~~~~~~~~~~~~~~~~ + +* ``RTE_CRYPTO_CIPHER_NULL`` +* ``RTE_CRYPTO_CIPHER_3DES_CBC`` +* ``RTE_CRYPTO_CIPHER_3DES_ECB`` +* ``RTE_CRYPTO_CIPHER_AES_CBC`` +* ``RTE_CRYPTO_CIPHER_AES_CTR`` +* ``RTE_CRYPTO_CIPHER_AES_XTS`` +* ``RTE_CRYPTO_CIPHER_DES_CBC`` +* ``RTE_CRYPTO_CIPHER_KASUMI_F8`` +* ``RTE_CRYPTO_CIPHER_SNOW3G_UEA2`` +* ``RTE_CRYPTO_CIPHER_ZUC_EEA3`` + +Hash Algorithms +~~~~~~~~~~~~~~~ + +* ``RTE_CRYPTO_AUTH_NULL`` +* ``RTE_CRYPTO_AUTH_AES_GMAC`` +* ``RTE_CRYPTO_AUTH_KASUMI_F9`` +* ``RTE_CRYPTO_AUTH_MD5`` +* ``RTE_CRYPTO_AUTH_MD5_HMAC`` +* ``RTE_CRYPTO_AUTH_SHA1`` +* ``RTE_CRYPTO_AUTH_SHA1_HMAC`` +* ``RTE_CRYPTO_AUTH_SHA224`` +* ``RTE_CRYPTO_AUTH_SHA224_HMAC`` +* ``RTE_CRYPTO_AUTH_SHA256`` +* ``RTE_CRYPTO_AUTH_SHA256_HMAC`` +* ``RTE_CRYPTO_AUTH_SHA384`` +* ``RTE_CRYPTO_AUTH_SHA384_HMAC`` +* ``RTE_CRYPTO_AUTH_SHA512`` +* ``RTE_CRYPTO_AUTH_SHA512_HMAC`` +* ``RTE_CRYPTO_AUTH_SNOW3G_UIA2`` +* ``RTE_CRYPTO_AUTH_ZUC_EIA3`` + +AEAD Algorithms +~~~~~~~~~~~~~~~ + +* ``RTE_CRYPTO_AEAD_AES_GCM`` + +Compilation +----------- + +The **OCTEON TX** :sup:`®` board must be running the linux kernel based on +sdk-6.2.0 patch 3. In this, the OCTEON TX crypto PF driver is already built in. + +For compiling the OCTEON TX crypto poll mode driver, please check if the +CONFIG_RTE_LIBRTE_PMD_OCTEONTX_CRYPTO setting is set to `y` in +config/common_base file. + +* ``CONFIG_RTE_LIBRTE_PMD_OCTEONTX_CRYPTO=y`` + +The following are the steps to compile the OCTEON TX crypto poll mode driver: + +.. code-block:: console + + cd <dpdk directory> + make config T=arm64-thunderx-linuxapp-gcc + make + +The example applications can be compiled using the following: + +.. code-block:: console + + cd <dpdk directory> + export RTE_SDK=$PWD + export RTE_TARGET=build + cd examples/<application> + make + +Execution +--------- + +The number of crypto VFs to be enabled can be controlled by setting sysfs entry, +`sriov_numvfs`, for the corresponding PF driver. + +.. code-block:: console + + echo <num_vfs> > /sys/bus/pci/devices/<dev_bus_id>/sriov_numvfs + +The device bus ID, `dev_bus_id`, to be used in the above step can be found out +by using dpdk-devbind.py script. The OCTEON TX crypto PF device need to be +identified and the corresponding device number can be used to tune various PF +properties. + + +Once the required VFs are enabled, dpdk-devbind.py script can be used to +identify the VFs. To be accessible from DPDK, VFs need to be bound to vfio-pci +driver: + +.. code-block:: console + + cd <dpdk directory> + ./usertools/dpdk-devbind.py -u <vf device no> + ./usertools/dpdk-devbind.py -b vfio-pci <vf device no> + +Appropriate huge page need to be setup in order to run the DPDK example +applications. + +.. code-block:: console + + echo 8 > /sys/kernel/mm/hugepages/hugepages-524288kB/nr_hugepages + mkdir /mnt/huge + mount -t hugetlbfs nodev /mnt/huge + +Example applications can now be executed with crypto operations offloaded to +OCTEON TX crypto PMD. + +.. code-block:: console + + ./build/ipsec-secgw --log-level=8 -c 0xff -- -P -p 0x3 -u 0x2 --config + "(1,0,0),(0,0,0)" -f ep1.cfg |