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30 Intel(R) QuickAssist (QAT) Crypto Poll Mode Driver
31 ==================================================
33 The QAT PMD provides poll mode crypto driver support for the following
34 hardware accelerator devices:
36 * ``Intel QuickAssist Technology DH895xCC``
37 * ``Intel QuickAssist Technology C62x``
38 * ``Intel QuickAssist Technology C3xxx``
39 * ``Intel QuickAssist Technology D15xx``
45 The QAT PMD has support for:
49 * ``RTE_CRYPTO_CIPHER_3DES_CBC``
50 * ``RTE_CRYPTO_CIPHER_3DES_CTR``
51 * ``RTE_CRYPTO_CIPHER_AES128_CBC``
52 * ``RTE_CRYPTO_CIPHER_AES192_CBC``
53 * ``RTE_CRYPTO_CIPHER_AES256_CBC``
54 * ``RTE_CRYPTO_CIPHER_AES128_CTR``
55 * ``RTE_CRYPTO_CIPHER_AES192_CTR``
56 * ``RTE_CRYPTO_CIPHER_AES256_CTR``
57 * ``RTE_CRYPTO_CIPHER_SNOW3G_UEA2``
58 * ``RTE_CRYPTO_CIPHER_NULL``
59 * ``RTE_CRYPTO_CIPHER_KASUMI_F8``
60 * ``RTE_CRYPTO_CIPHER_DES_CBC``
61 * ``RTE_CRYPTO_CIPHER_AES_DOCSISBPI``
62 * ``RTE_CRYPTO_CIPHER_DES_DOCSISBPI``
63 * ``RTE_CRYPTO_CIPHER_ZUC_EEA3``
67 * ``RTE_CRYPTO_AUTH_SHA1_HMAC``
68 * ``RTE_CRYPTO_AUTH_SHA224_HMAC``
69 * ``RTE_CRYPTO_AUTH_SHA256_HMAC``
70 * ``RTE_CRYPTO_AUTH_SHA384_HMAC``
71 * ``RTE_CRYPTO_AUTH_SHA512_HMAC``
72 * ``RTE_CRYPTO_AUTH_AES_XCBC_MAC``
73 * ``RTE_CRYPTO_AUTH_SNOW3G_UIA2``
74 * ``RTE_CRYPTO_AUTH_MD5_HMAC``
75 * ``RTE_CRYPTO_AUTH_NULL``
76 * ``RTE_CRYPTO_AUTH_KASUMI_F9``
77 * ``RTE_CRYPTO_AUTH_AES_GMAC``
78 * ``RTE_CRYPTO_AUTH_ZUC_EIA3``
80 Supported AEAD algorithms:
81 * ``RTE_CRYPTO_AEAD_AES_GCM``
87 * Only supports the session-oriented API implementation (session-less APIs are not supported).
88 * SNOW 3G (UEA2), KASUMI (F8) and ZUC (EEA3) supported only if cipher length and offset fields are byte-multiple.
89 * SNOW 3G (UIA2) and ZUC (EIA3) supported only if hash length and offset fields are byte-multiple.
90 * No BSD support as BSD QAT kernel driver not available.
91 * ZUC EEA3/EIA3 is not supported by dh895xcc devices
92 * Maximum additional authenticated data (AAD) for GCM is 240 bytes long.
98 To enable QAT in DPDK, follow the instructions for modifying the compile-time
99 configuration file as described `here <http://dpdk.org/doc/guides/linux_gsg/build_dpdk.html>`_.
101 Quick instructions are as follows:
103 .. code-block:: console
105 cd to the top-level DPDK directory
106 make config T=x86_64-native-linuxapp-gcc
107 sed -i 's,\(CONFIG_RTE_LIBRTE_PMD_QAT\)=n,\1=y,' build/.config
110 To use the DPDK QAT PMD an SRIOV-enabled QAT kernel driver is required. The VF
111 devices exposed by this driver will be used by the QAT PMD. The devices and
112 available kernel drivers and device ids are :
114 .. _table_qat_pmds_drivers:
116 .. table:: QAT device generations, devices and drivers
118 +-----+----------+--------+---------------+------------+--------+------+--------+--------+
119 | Gen | Device | Driver | Kernel Module | Pci Driver | PF Did | #PFs | Vf Did | VFs/PF |
120 +=====+==========+========+===============+============+========+======+========+========+
121 | 1 | DH895xCC | 01.org | icp_qa_al | n/a | 435 | 1 | 443 | 32 |
122 +-----+----------+--------+---------------+------------+--------+------+--------+--------+
123 | 1 | DH895xCC | 4.4+ | qat_dh895xcc | dh895xcc | 435 | 1 | 443 | 32 |
124 +-----+----------+--------+---------------+------------+--------+------+--------+--------+
125 | 2 | C62x | 4.5+ | qat_c62x | c6xx | 37c8 | 3 | 37c9 | 16 |
126 +-----+----------+--------+---------------+------------+--------+------+--------+--------+
127 | 2 | C3xxx | 4.5+ | qat_c3xxx | c3xxx | 19e2 | 1 | 19e3 | 16 |
128 +-----+----------+--------+---------------+------------+--------+------+--------+--------+
129 | 2 | D15xx | p | qat_d15xx | d15xx | 6f54 | 1 | 6f55 | 16 |
130 +-----+----------+--------+---------------+------------+--------+------+--------+--------+
133 The ``Driver`` column indicates either the Linux kernel version in which
134 support for this device was introduced or a driver available on Intel's 01.org
135 website. There are both linux and 01.org kernel drivers available for some
136 devices. p = release pending.
138 If you are running on a kernel which includes a driver for your device, see
139 `Installation using kernel.org driver`_ below. Otherwise see
140 `Installation using 01.org QAT driver`_.
143 Installation using kernel.org driver
144 ------------------------------------
146 The examples below are based on the C62x device, if you have a different device
147 use the corresponding values in the above table.
149 In BIOS ensure that SRIOV is enabled and either:
152 * Enable VT-d and set ``"intel_iommu=on iommu=pt"`` in the grub file.
154 Check that the QAT driver is loaded on your system, by executing::
158 You should see the kernel module for your device listed, e.g.::
161 intel_qat 82336 1 qat_c62x
163 Next, you need to expose the Virtual Functions (VFs) using the sysfs file system.
165 First find the BDFs (Bus-Device-Function) of the physical functions (PFs) of
170 You should see output similar to::
172 1a:00.0 Co-processor: Intel Corporation Device 37c8
173 3d:00.0 Co-processor: Intel Corporation Device 37c8
174 3f:00.0 Co-processor: Intel Corporation Device 37c8
176 Enable the VFs for each PF by echoing the number of VFs per PF to the pci driver::
178 echo 16 > /sys/bus/pci/drivers/c6xx/0000:1a:00.0/sriov_numvfs
179 echo 16 > /sys/bus/pci/drivers/c6xx/0000:3d:00.0/sriov_numvfs
180 echo 16 > /sys/bus/pci/drivers/c6xx/0000:3f:00.0/sriov_numvfs
182 Check that the VFs are available for use. For example ``lspci -d:37c9`` should
183 list 48 VF devices available for a ``C62x`` device.
185 To complete the installation follow the instructions in
186 `Binding the available VFs to the DPDK UIO driver`_.
190 If the QAT kernel modules are not loaded and you see an error like ``Failed
191 to load MMP firmware qat_895xcc_mmp.bin`` in kernel logs, this may be as a
192 result of not using a distribution, but just updating the kernel directly.
194 Download firmware from the `kernel firmware repo
195 <http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/>`_.
197 Copy qat binaries to ``/lib/firmware``::
199 cp qat_895xcc.bin /lib/firmware
200 cp qat_895xcc_mmp.bin /lib/firmware
202 Change to your linux source root directory and start the qat kernel modules::
204 insmod ./drivers/crypto/qat/qat_common/intel_qat.ko
205 insmod ./drivers/crypto/qat/qat_dh895xcc/qat_dh895xcc.ko
210 If you see the following warning in ``/var/log/messages`` it can be ignored:
211 ``IOMMU should be enabled for SR-IOV to work correctly``.
214 Installation using 01.org QAT driver
215 ------------------------------------
217 Download the latest QuickAssist Technology Driver from `01.org
218 <https://01.org/packet-processing/intel%C2%AE-quickassist-technology-drivers-and-patches>`_.
219 Consult the *Getting Started Guide* at the same URL for further information.
221 The steps below assume you are:
223 * Building on a platform with one ``DH895xCC`` device.
224 * Using package ``qatmux.l.2.3.0-34.tgz``.
225 * On Fedora21 kernel ``3.17.4-301.fc21.x86_64``.
227 In the BIOS ensure that SRIOV is enabled and VT-d is disabled.
229 Uninstall any existing QAT driver, for example by running:
231 * ``./installer.sh uninstall`` in the directory where originally installed.
233 * or ``rmmod qat_dh895xcc; rmmod intel_qat``.
235 Build and install the SRIOV-enabled QAT driver::
240 # Copy qatmux.l.2.3.0-34.tgz to this location
241 tar zxof qatmux.l.2.3.0-34.tgz
243 export ICP_WITHOUT_IOMMU=1
244 ./installer.sh install QAT1.6 host
246 You can use ``cat /proc/icp_dh895xcc_dev0/version`` to confirm the driver is correctly installed.
247 You can use ``lspci -d:443`` to confirm the of the 32 VF devices available per ``DH895xCC`` device.
249 To complete the installation - follow instructions in `Binding the available VFs to the DPDK UIO driver`_.
253 If using a later kernel and the build fails with an error relating to
254 ``strict_stroul`` not being available apply the following patch:
258 /QAT/QAT1.6/quickassist/utilities/downloader/Target_CoreLibs/uclo/include/linux/uclo_platform.h
259 + #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,5)
260 + #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; if (kstrtoul((str), (base), (num))) printk("Error strtoull convert %s\n", str); }
262 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)
263 #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; if (strict_strtoull((str), (base), (num))) printk("Error strtoull convert %s\n", str); }
265 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
266 #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; strict_strtoll((str), (base), (num));}
268 #define STR_TO_64(str, base, num, endPtr) \
272 *(num) = -(simple_strtoull((str+1), &(endPtr), (base))); \
274 *(num) = simple_strtoull((str), &(endPtr), (base)); \
284 If the build fails due to missing header files you may need to do following::
286 sudo yum install zlib-devel
287 sudo yum install openssl-devel
291 If the build or install fails due to mismatching kernel sources you may need to do the following::
293 sudo yum install kernel-headers-`uname -r`
294 sudo yum install kernel-src-`uname -r`
295 sudo yum install kernel-devel-`uname -r`
298 Binding the available VFs to the DPDK UIO driver
299 ------------------------------------------------
301 Unbind the VFs from the stock driver so they can be bound to the uio driver.
303 For an Intel(R) QuickAssist Technology DH895xCC device
304 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
306 The unbind command below assumes ``BDFs`` of ``03:01.00-03:04.07``, if your
307 VFs are different adjust the unbind command below::
309 for device in $(seq 1 4); do \
310 for fn in $(seq 0 7); do \
311 echo -n 0000:03:0${device}.${fn} > \
312 /sys/bus/pci/devices/0000\:03\:0${device}.${fn}/driver/unbind; \
316 For an Intel(R) QuickAssist Technology C62x device
317 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
319 The unbind command below assumes ``BDFs`` of ``1a:01.00-1a:02.07``,
320 ``3d:01.00-3d:02.07`` and ``3f:01.00-3f:02.07``, if your VFs are different
321 adjust the unbind command below::
323 for device in $(seq 1 2); do \
324 for fn in $(seq 0 7); do \
325 echo -n 0000:1a:0${device}.${fn} > \
326 /sys/bus/pci/devices/0000\:1a\:0${device}.${fn}/driver/unbind; \
328 echo -n 0000:3d:0${device}.${fn} > \
329 /sys/bus/pci/devices/0000\:3d\:0${device}.${fn}/driver/unbind; \
331 echo -n 0000:3f:0${device}.${fn} > \
332 /sys/bus/pci/devices/0000\:3f\:0${device}.${fn}/driver/unbind; \
336 For Intel(R) QuickAssist Technology C3xxx or D15xx device
337 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
339 The unbind command below assumes ``BDFs`` of ``01:01.00-01:02.07``, if your
340 VFs are different adjust the unbind command below::
342 for device in $(seq 1 2); do \
343 for fn in $(seq 0 7); do \
344 echo -n 0000:01:0${device}.${fn} > \
345 /sys/bus/pci/devices/0000\:01\:0${device}.${fn}/driver/unbind; \
349 Bind to the DPDK uio driver
350 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
352 Install the DPDK igb_uio driver, bind the VF PCI Device id to it and use lspci
353 to confirm the VF devices are now in use by igb_uio kernel driver,
354 e.g. for the C62x device::
356 cd to the top-level DPDK directory
358 insmod ./build/kmod/igb_uio.ko
359 echo "8086 37c9" > /sys/bus/pci/drivers/igb_uio/new_id
363 Another way to bind the VFs to the DPDK UIO driver is by using the
364 ``dpdk-devbind.py`` script::
366 cd to the top-level DPDK directory
367 ./usertools/dpdk-devbind.py -b igb_uio 0000:03:01.1
370 Extra notes on KASUMI F9
371 ------------------------
373 When using KASUMI F9 authentication algorithm, the input buffer must be
374 constructed according to the 3GPP KASUMI specifications (section 4.4, page 13):
375 `<http://cryptome.org/3gpp/35201-900.pdf>`_.
376 Input buffer has to have COUNT (4 bytes), FRESH (4 bytes), MESSAGE and DIRECTION (1 bit)
377 concatenated. After the DIRECTION bit, a single '1' bit is appended, followed by
378 between 0 and 7 '0' bits, so that the total length of the buffer is multiple of 8 bits.
379 Note that the actual message can be any length, specified in bits.
381 Once this buffer is passed this way, when creating the crypto operation,
382 length of data to authenticate (op.sym.auth.data.length) must be the length
383 of all the items described above, including the padding at the end.
384 Also, offset of data to authenticate (op.sym.auth.data.offset)
385 must be such that points at the start of the COUNT bytes.