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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``
55 * ``RTE_CRYPTO_AUTH_SHA1_HMAC``
56 * ``RTE_CRYPTO_AUTH_SHA256_HMAC``
57 * ``RTE_CRYPTO_AUTH_SHA512_HMAC``
58 * ``RTE_CRYPTO_AUTH_AES_XCBC_MAC``
59 * ``RTE_CRYPTO_AUTH_SNOW3G_UIA2``
65 * Chained mbufs are not supported.
66 * Hash only is not supported except Snow3G UIA2.
67 * Cipher only is not supported except Snow3G UEA2.
68 * Only supports the session-oriented API implementation (session-less APIs are not supported).
69 * Not performance tuned.
70 * Snow3g(UEA2) supported only if cipher length, cipher offset fields are byte-aligned.
71 * Snow3g(UIA2) supported only if hash length, hash offset fields are byte-aligned.
72 * No BSD support as BSD QAT kernel driver not available.
78 To use the DPDK QAT PMD an SRIOV-enabled QAT kernel driver is required. The
79 VF devices exposed by this driver will be used by QAT PMD.
81 If you are running on kernel 4.4 or greater, see instructions for
82 `Installation using kernel.org driver`_ below. If you are on a kernel earlier
83 than 4.4, see `Installation using 01.org QAT driver`_.
86 Installation using 01.org QAT driver
87 ------------------------------------
89 Download the latest QuickAssist Technology Driver from `01.org
90 <https://01.org/packet-processing/intel%C2%AE-quickassist-technology-drivers-and-patches>`_
91 Consult the *Getting Started Guide* at the same URL for further information.
93 The steps below assume you are:
95 * Building on a platform with one ``DH895xCC`` device.
96 * Using package ``qatmux.l.2.3.0-34.tgz``.
97 * On Fedora21 kernel ``3.17.4-301.fc21.x86_64``.
99 In the BIOS ensure that SRIOV is enabled and VT-d is disabled.
101 Uninstall any existing QAT driver, for example by running:
103 * ``./installer.sh uninstall`` in the directory where originally installed.
105 * or ``rmmod qat_dh895xcc; rmmod intel_qat``.
107 Build and install the SRIOV-enabled QAT driver::
111 # copy qatmux.l.2.3.0-34.tgz to this location
112 tar zxof qatmux.l.2.3.0-34.tgz
114 export ICP_WITHOUT_IOMMU=1
115 ./installer.sh install QAT1.6 host
117 You can use ``cat /proc/icp_dh895xcc_dev0/version`` to confirm the driver is correctly installed.
118 You can use ``lspci -d:443`` to confirm the bdf of the 32 VF devices are available per ``DH895xCC`` device.
120 To complete the installation - follow instructions in `Binding the available VFs to the DPDK UIO driver`_.
122 **Note**: If using a later kernel and the build fails with an error relating to ``strict_stroul`` not being available apply the following patch:
126 /QAT/QAT1.6/quickassist/utilities/downloader/Target_CoreLibs/uclo/include/linux/uclo_platform.h
127 + #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,5)
128 + #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; if (kstrtoul((str), (base), (num))) printk("Error strtoull convert %s\n", str); }
130 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)
131 #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; if (strict_strtoull((str), (base), (num))) printk("Error strtoull convert %s\n", str); }
133 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
134 #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; strict_strtoll((str), (base), (num));}
136 #define STR_TO_64(str, base, num, endPtr) \
140 *(num) = -(simple_strtoull((str+1), &(endPtr), (base))); \
142 *(num) = simple_strtoull((str), &(endPtr), (base)); \
150 If the build fails due to missing header files you may need to do following:
152 * ``sudo yum install zlib-devel``
153 * ``sudo yum install openssl-devel``
155 If the build or install fails due to mismatching kernel sources you may need to do the following:
157 * ``sudo yum install kernel-headers-`uname -r```
158 * ``sudo yum install kernel-src-`uname -r```
159 * ``sudo yum install kernel-devel-`uname -r```
162 Installation using kernel.org driver
163 ------------------------------------
165 Assuming you are running on at least a 4.4 kernel, you can use the stock kernel.org QAT
166 driver to start the QAT hardware.
168 The steps below assume you are:
170 * Running DPDK on a platform with one ``DH895xCC`` device.
171 * On a kernel at least version 4.4.
173 In BIOS ensure that SRIOV is enabled and VT-d is disabled.
175 Ensure the QAT driver is loaded on your system, by executing::
179 You should see the following output::
182 intel_qat 82336 1 qat_dh895xcc
184 Next, you need to expose the VFs using the sysfs file system.
186 First find the bdf of the DH895xCC device::
190 You should see output similar to::
192 03:00.0 Co-processor: Intel Corporation Coleto Creek PCIe Endpoint
194 Using the sysfs, enable the VFs::
196 echo 32 > /sys/bus/pci/drivers/dh895xcc/0000\:03\:00.0/sriov_numvfs
198 If you get an error, it's likely you're using a QAT kernel driver earlier than kernel 4.4.
200 To verify that the VFs are available for use - use ``lspci -d:443`` to confirm
201 the bdf of the 32 VF devices are available per ``DH895xCC`` device.
203 To complete the installation - follow instructions in `Binding the available VFs to the DPDK UIO driver`_.
205 **Note**: If the QAT kernel modules are not loaded and you see an error like
206 ``Failed to load MMP firmware qat_895xcc_mmp.bin`` this may be as a
207 result of not using a distribution, but just updating the kernel directly.
209 Download firmware from the kernel firmware repo at:
210 http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/
212 Copy qat binaries to /lib/firmware:
213 * ``cp qat_895xcc.bin /lib/firmware``
214 * ``cp qat_895xcc_mmp.bin /lib/firmware``
216 cd to your linux source root directory and start the qat kernel modules:
217 * ``insmod ./drivers/crypto/qat/qat_common/intel_qat.ko``
218 * ``insmod ./drivers/crypto/qat/qat_dh895xcc/qat_dh895xcc.ko``
220 **Note**:The following warning in /var/log/messages can be ignored:
221 ``IOMMU should be enabled for SR-IOV to work correctly``
225 Binding the available VFs to the DPDK UIO driver
226 ------------------------------------------------
228 The unbind command below assumes ``bdfs`` of ``03:01.00-03:04.07``, if yours are different adjust the unbind command below::
232 insmod ./build/kmod/igb_uio.ko
234 for device in $(seq 1 4); do \
235 for fn in $(seq 0 7); do \
236 echo -n 0000:03:0${device}.${fn} > \
237 /sys/bus/pci/devices/0000\:03\:0${device}.${fn}/driver/unbind; \
241 echo "8086 0443" > /sys/bus/pci/drivers/igb_uio/new_id
243 You can use ``lspci -vvd:443`` to confirm that all devices are now in use by igb_uio kernel driver.