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30 Quick Assist Crypto Poll Mode Driver
31 ====================================
33 The QAT PMD provides poll mode crypto driver support for **Intel QuickAssist
34 Technology DH895xxC** hardware accelerator.
40 The QAT PMD has support for:
44 * ``RTE_CRYPTO_SYM_CIPHER_AES128_CBC``
45 * ``RTE_CRYPTO_SYM_CIPHER_AES192_CBC``
46 * ``RTE_CRYPTO_SYM_CIPHER_AES256_CBC``
47 * ``RTE_CRYPTO_SYM_CIPHER_AES128_CTR``
48 * ``RTE_CRYPTO_SYM_CIPHER_AES192_CTR``
49 * ``RTE_CRYPTO_SYM_CIPHER_AES256_CTR``
50 * ``RTE_CRYPTO_SYM_CIPHER_SNOW3G_UEA2``
51 * ``RTE_CRYPTO_CIPHER_AES_GCM``
52 * ``RTE_CRYPTO_CIPHER_NULL``
56 * ``RTE_CRYPTO_AUTH_SHA1_HMAC``
57 * ``RTE_CRYPTO_AUTH_SHA224_HMAC``
58 * ``RTE_CRYPTO_AUTH_SHA256_HMAC``
59 * ``RTE_CRYPTO_AUTH_SHA384_HMAC``
60 * ``RTE_CRYPTO_AUTH_SHA512_HMAC``
61 * ``RTE_CRYPTO_AUTH_AES_XCBC_MAC``
62 * ``RTE_CRYPTO_AUTH_SNOW3G_UIA2``
63 * ``RTE_CRYPTO_AUTH_MD5_HMAC``
64 * ``RTE_CRYPTO_AUTH_NULL``
70 * Chained mbufs are not supported.
71 * Hash only is not supported except Snow3G UIA2.
72 * Cipher only is not supported except Snow3G UEA2.
73 * Only supports the session-oriented API implementation (session-less APIs are not supported).
74 * Not performance tuned.
75 * Snow3g(UEA2) supported only if cipher length, cipher offset fields are byte-aligned.
76 * Snow3g(UIA2) supported only if hash length, hash offset fields are byte-aligned.
77 * No BSD support as BSD QAT kernel driver not available.
83 To use the DPDK QAT PMD an SRIOV-enabled QAT kernel driver is required. The
84 VF devices exposed by this driver will be used by QAT PMD.
86 To enable QAT in DPDK, follow the instructions mentioned in
87 http://dpdk.org/doc/guides/linux_gsg/build_dpdk.html
89 Quick instructions as follows:
91 .. code-block:: console
93 make config T=x86_64-native-linuxapp-gcc
94 sed -i 's,\(CONFIG_RTE_LIBRTE_PMD_QAT\)=n,\1=y,' build/.config
97 If you are running on kernel 4.4 or greater, see instructions for
98 `Installation using kernel.org driver`_ below. If you are on a kernel earlier
99 than 4.4, see `Installation using 01.org QAT driver`_.
102 Installation using 01.org QAT driver
103 ------------------------------------
105 Download the latest QuickAssist Technology Driver from `01.org
106 <https://01.org/packet-processing/intel%C2%AE-quickassist-technology-drivers-and-patches>`_
107 Consult the *Getting Started Guide* at the same URL for further information.
109 The steps below assume you are:
111 * Building on a platform with one ``DH895xCC`` device.
112 * Using package ``qatmux.l.2.3.0-34.tgz``.
113 * On Fedora21 kernel ``3.17.4-301.fc21.x86_64``.
115 In the BIOS ensure that SRIOV is enabled and VT-d is disabled.
117 Uninstall any existing QAT driver, for example by running:
119 * ``./installer.sh uninstall`` in the directory where originally installed.
121 * or ``rmmod qat_dh895xcc; rmmod intel_qat``.
123 Build and install the SRIOV-enabled QAT driver::
127 # copy qatmux.l.2.3.0-34.tgz to this location
128 tar zxof qatmux.l.2.3.0-34.tgz
130 export ICP_WITHOUT_IOMMU=1
131 ./installer.sh install QAT1.6 host
133 You can use ``cat /proc/icp_dh895xcc_dev0/version`` to confirm the driver is correctly installed.
134 You can use ``lspci -d:443`` to confirm the bdf of the 32 VF devices are available per ``DH895xCC`` device.
136 To complete the installation - follow instructions in `Binding the available VFs to the DPDK UIO driver`_.
138 **Note**: If using a later kernel and the build fails with an error relating to ``strict_stroul`` not being available apply the following patch:
142 /QAT/QAT1.6/quickassist/utilities/downloader/Target_CoreLibs/uclo/include/linux/uclo_platform.h
143 + #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,5)
144 + #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; if (kstrtoul((str), (base), (num))) printk("Error strtoull convert %s\n", str); }
146 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)
147 #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; if (strict_strtoull((str), (base), (num))) printk("Error strtoull convert %s\n", str); }
149 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
150 #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; strict_strtoll((str), (base), (num));}
152 #define STR_TO_64(str, base, num, endPtr) \
156 *(num) = -(simple_strtoull((str+1), &(endPtr), (base))); \
158 *(num) = simple_strtoull((str), &(endPtr), (base)); \
166 If the build fails due to missing header files you may need to do following:
168 * ``sudo yum install zlib-devel``
169 * ``sudo yum install openssl-devel``
171 If the build or install fails due to mismatching kernel sources you may need to do the following:
173 * ``sudo yum install kernel-headers-`uname -r```
174 * ``sudo yum install kernel-src-`uname -r```
175 * ``sudo yum install kernel-devel-`uname -r```
178 Installation using kernel.org driver
179 ------------------------------------
181 Assuming you are running on at least a 4.4 kernel, you can use the stock kernel.org QAT
182 driver to start the QAT hardware.
184 The steps below assume you are:
186 * Running DPDK on a platform with one ``DH895xCC`` device.
187 * On a kernel at least version 4.4.
189 In BIOS ensure that SRIOV is enabled and VT-d is disabled.
191 Ensure the QAT driver is loaded on your system, by executing::
195 You should see the following output::
198 intel_qat 82336 1 qat_dh895xcc
200 Next, you need to expose the VFs using the sysfs file system.
202 First find the bdf of the DH895xCC device::
206 You should see output similar to::
208 03:00.0 Co-processor: Intel Corporation Coleto Creek PCIe Endpoint
210 Using the sysfs, enable the VFs::
212 echo 32 > /sys/bus/pci/drivers/dh895xcc/0000\:03\:00.0/sriov_numvfs
214 If you get an error, it's likely you're using a QAT kernel driver earlier than kernel 4.4.
216 To verify that the VFs are available for use - use ``lspci -d:443`` to confirm
217 the bdf of the 32 VF devices are available per ``DH895xCC`` device.
219 To complete the installation - follow instructions in `Binding the available VFs to the DPDK UIO driver`_.
221 **Note**: If the QAT kernel modules are not loaded and you see an error like
222 ``Failed to load MMP firmware qat_895xcc_mmp.bin`` this may be as a
223 result of not using a distribution, but just updating the kernel directly.
225 Download firmware from the kernel firmware repo at:
226 http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/
228 Copy qat binaries to /lib/firmware:
229 * ``cp qat_895xcc.bin /lib/firmware``
230 * ``cp qat_895xcc_mmp.bin /lib/firmware``
232 cd to your linux source root directory and start the qat kernel modules:
233 * ``insmod ./drivers/crypto/qat/qat_common/intel_qat.ko``
234 * ``insmod ./drivers/crypto/qat/qat_dh895xcc/qat_dh895xcc.ko``
236 **Note**:The following warning in /var/log/messages can be ignored:
237 ``IOMMU should be enabled for SR-IOV to work correctly``
241 Binding the available VFs to the DPDK UIO driver
242 ------------------------------------------------
244 The unbind command below assumes ``bdfs`` of ``03:01.00-03:04.07``, if yours are different adjust the unbind command below::
248 insmod ./build/kmod/igb_uio.ko
250 for device in $(seq 1 4); do \
251 for fn in $(seq 0 7); do \
252 echo -n 0000:03:0${device}.${fn} > \
253 /sys/bus/pci/devices/0000\:03\:0${device}.${fn}/driver/unbind; \
257 echo "8086 0443" > /sys/bus/pci/drivers/igb_uio/new_id
259 You can use ``lspci -vvd:443`` to confirm that all devices are now in use by igb_uio kernel driver.