+* ZUC EEA3/EIA3 is not supported by dh895xcc devices
+* Maximum additional authenticated data (AAD) for GCM is 240 bytes long.
+* Queue pairs are not thread-safe (that is, within a single queue pair, RX and TX from different lcores is not supported).
+
+
+Extra notes on KASUMI F9
+------------------------
+
+When using KASUMI F9 authentication algorithm, the input buffer must be
+constructed according to the 3GPP KASUMI specifications (section 4.4, page 13):
+`<http://cryptome.org/3gpp/35201-900.pdf>`_.
+Input buffer has to have COUNT (4 bytes), FRESH (4 bytes), MESSAGE and DIRECTION (1 bit)
+concatenated. After the DIRECTION bit, a single '1' bit is appended, followed by
+between 0 and 7 '0' bits, so that the total length of the buffer is multiple of 8 bits.
+Note that the actual message can be any length, specified in bits.
+
+Once this buffer is passed this way, when creating the crypto operation,
+length of data to authenticate (op.sym.auth.data.length) must be the length
+of all the items described above, including the padding at the end.
+Also, offset of data to authenticate (op.sym.auth.data.offset)
+must be such that points at the start of the COUNT bytes.
+
+
+Building the DPDK QAT cryptodev PMD
+-----------------------------------
+
+
+To enable QAT crypto in DPDK, follow the instructions for modifying the compile-time
+configuration file as described `here <http://dpdk.org/doc/guides/linux_gsg/build_dpdk.html>`_.
+
+
+Quick instructions are as follows:
+
+.. code-block:: console
+
+ cd to the top-level DPDK directory
+ make config T=x86_64-native-linuxapp-gcc
+ sed -i 's,\(CONFIG_RTE_LIBRTE_PMD_QAT\)=n,\1=y,' build/.config
+ sed -i 's,\(CONFIG_RTE_LIBRTE_PMD_QAT_SYM\)=n,\1=y,' build/.config
+ make
+
+
+.. _qat_kernel_installation:
+
+Dependency on the QAT kernel driver
+-----------------------------------
+
+To use the QAT PMD an SRIOV-enabled QAT kernel driver is required. The VF
+devices created and initialised by this driver will be used by the QAT PMD.
+
+Instructions for installation are below, but first an explanation of the
+relationships between the PF/VF devices and the PMDs visible to
+DPDK applications.
+
+
+Acceleration services - cryptography and compression - are provided to DPDK
+applications via PMDs which register to implement the corresponding
+cryptodev and compressdev APIs.
+
+Each QuickAssist VF device can expose one cryptodev PMD and/or one compressdev PMD.
+These QAT PMDs share the same underlying device and pci-mgmt code, but are
+enumerated independently on their respective APIs and appear as independent
+devices to applications.
+
+.. Note::
+
+ Each VF can only be used by one DPDK process. It is not possible to share
+ the same VF across multiple processes, even if these processes are using
+ different acceleration services.
+
+ Conversely one DPDK process can use one or more QAT VFs and can expose both
+ cryptodev and compressdev instances on each of those VFs.
+
+
+
+Device and driver naming
+------------------------
+
+* The qat cryptodev driver name is "crypto_qat".
+ The rte_cryptodev_devices_get() returns the devices exposed by this driver.
+
+* Each qat crypto device has a unique name, in format
+ <pci bdf>_<service>, e.g. "0000:41:01.0_qat_sym".
+ This name can be passed to rte_cryptodev_get_dev_id() to get the device_id.
+
+.. Note::
+
+ The qat crypto driver name is passed to the dpdk-test-crypto-perf tool in the -devtype parameter.
+
+ The qat crypto device name is in the format of the slave parameter passed to the crypto scheduler.
+
+* The qat compressdev driver name is "comp_qat".
+ The rte_compressdev_devices_get() returns the devices exposed by this driver.
+
+* Each qat compression device has a unique name, in format
+ <pci bdf>_<service>, e.g. "0000:41:01.0_qat_comp".
+ This name can be passed to rte_compressdev_get_dev_id() to get the device_id.
+
+
+Available kernel drivers
+------------------------
+
+Kernel drivers for each device are listed in the following table. Scroll right
+to check that the driver and device supports the servic you require.
+
+
+.. _table_qat_pmds_drivers:
+
+.. table:: QAT device generations, devices and drivers
+
+ +-----+----------+---------------+---------------+------------+--------+------+--------+--------+-----------+-------------+
+ | Gen | Device | Driver/ver | Kernel Module | Pci Driver | PF Did | #PFs | VF Did | VFs/PF | cryptodev | compressdev |
+ +=====+==========+===============+===============+============+========+======+========+========+===========+=============+
+ | 1 | DH895xCC | linux/4.4+ | qat_dh895xcc | dh895xcc | 435 | 1 | 443 | 32 | Yes | No |
+ +-----+----------+---------------+---------------+------------+--------+------+--------+--------+-----------+-------------+
+ | " | " | 01.org/4.2.0+ | " | " | " | " | " | " | Yes | No |
+ +-----+----------+---------------+---------------+------------+--------+------+--------+--------+-----------+-------------+
+ | 2 | C62x | linux/4.5+ | qat_c62x | c6xx | 37c8 | 3 | 37c9 | 16 | Yes | No |
+ +-----+----------+---------------+---------------+------------+--------+------+--------+--------+-----------+-------------+
+ | " | " | 01.org/4.2.0+ | " | " | " | " | " | " | Yes | Yes |
+ +-----+----------+---------------+---------------+------------+--------+------+--------+--------+-----------+-------------+
+ | 2 | C3xxx | linux/4.5+ | qat_c3xxx | c3xxx | 19e2 | 1 | 19e3 | 16 | Yes | No |
+ +-----+----------+---------------+---------------+------------+--------+------+--------+--------+-----------+-------------+
+ | " | " | 01.org/4.2.0+ | " | " | " | " | " | " | Yes | Yes |
+ +-----+----------+---------------+---------------+------------+--------+------+--------+--------+-----------+-------------+
+ | 2 | D15xx | p | qat_d15xx | d15xx | 6f54 | 1 | 6f55 | 16 | Yes | No |
+ +-----+----------+---------------+---------------+------------+--------+------+--------+--------+-----------+-------------+
+