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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.
36 The QAT PMD has been tested on Fedora 21 64-bit with gcc and on the 4.4
37 kernel.org Linux kernel.
43 The QAT PMD has support for:
47 * ``RTE_CRYPTO_SYM_CIPHER_AES128_CBC``
48 * ``RTE_CRYPTO_SYM_CIPHER_AES192_CBC``
49 * ``RTE_CRYPTO_SYM_CIPHER_AES256_CBC``
50 * ``RTE_CRYPTO_SYM_CIPHER_SNOW3G_UEA2``
54 * ``RTE_CRYPTO_AUTH_SHA1_HMAC``
55 * ``RTE_CRYPTO_AUTH_SHA256_HMAC``
56 * ``RTE_CRYPTO_AUTH_SHA512_HMAC``
57 * ``RTE_CRYPTO_AUTH_AES_XCBC_MAC``
58 * ``RTE_CRYPTO_AUTH_SNOW3G_UIA2``
64 * Chained mbufs are not supported.
65 * Hash only is not supported except Snow3G UIA2.
66 * Cipher only is not supported except Snow3G UEA2.
67 * Only in-place is currently supported (destination address is the same as source address).
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.
77 To use the DPDK QAT PMD an SRIOV-enabled QAT kernel driver is required. The
78 VF devices exposed by this driver will be used by QAT PMD.
80 If you are running on kernel 4.4 or greater, see instructions for
81 `Installation using kernel.org driver`_ below. If you are on a kernel earlier
82 than 4.4, see `Installation using 01.org QAT driver`_.
85 Installation using 01.org QAT driver
86 ------------------------------------
88 Download the latest QuickAssist Technology Driver from `01.org
89 <https://01.org/packet-processing/intel%C2%AE-quickassist-technology-drivers-and-patches>`_
90 Consult the *Getting Started Guide* at the same URL for further information.
92 The steps below assume you are:
94 * Building on a platform with one ``DH895xCC`` device.
95 * Using package ``qatmux.l.2.3.0-34.tgz``.
96 * On Fedora21 kernel ``3.17.4-301.fc21.x86_64``.
98 In the BIOS ensure that SRIOV is enabled and VT-d is disabled.
100 Uninstall any existing QAT driver, for example by running:
102 * ``./installer.sh uninstall`` in the directory where originally installed.
104 * or ``rmmod qat_dh895xcc; rmmod intel_qat``.
106 Build and install the SRIOV-enabled QAT driver::
110 # copy qatmux.l.2.3.0-34.tgz to this location
111 tar zxof qatmux.l.2.3.0-34.tgz
113 export ICP_WITHOUT_IOMMU=1
114 ./installer.sh install QAT1.6 host
116 You can use ``cat /proc/icp_dh895xcc_dev0/version`` to confirm the driver is correctly installed.
117 You can use ``lspci -d:443`` to confirm the bdf of the 32 VF devices are available per ``DH895xCC`` device.
119 To complete the installation - follow instructions in `Binding the available VFs to the DPDK UIO driver`_.
121 **Note**: If using a later kernel and the build fails with an error relating to ``strict_stroul`` not being available apply the following patch:
125 /QAT/QAT1.6/quickassist/utilities/downloader/Target_CoreLibs/uclo/include/linux/uclo_platform.h
126 + #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,5)
127 + #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; if (kstrtoul((str), (base), (num))) printk("Error strtoull convert %s\n", str); }
129 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)
130 #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; if (strict_strtoull((str), (base), (num))) printk("Error strtoull convert %s\n", str); }
132 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
133 #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; strict_strtoll((str), (base), (num));}
135 #define STR_TO_64(str, base, num, endPtr) \
139 *(num) = -(simple_strtoull((str+1), &(endPtr), (base))); \
141 *(num) = simple_strtoull((str), &(endPtr), (base)); \
149 If the build fails due to missing header files you may need to do following:
151 * ``sudo yum install zlib-devel``
152 * ``sudo yum install openssl-devel``
154 If the build or install fails due to mismatching kernel sources you may need to do the following:
156 * ``sudo yum install kernel-headers-`uname -r```
157 * ``sudo yum install kernel-src-`uname -r```
158 * ``sudo yum install kernel-devel-`uname -r```
161 Installation using kernel.org driver
162 ------------------------------------
164 Assuming you are running on at least a 4.4 kernel, you can use the stock kernel.org QAT
165 driver to start the QAT hardware.
167 The steps below assume you are:
169 * Running DPDK on a platform with one ``DH895xCC`` device.
170 * On a kernel at least version 4.4.
172 In BIOS ensure that SRIOV is enabled and VT-d is disabled.
174 Ensure the QAT driver is loaded on your system, by executing::
178 You should see the following output::
181 intel_qat 82336 1 qat_dh895xcc
183 Next, you need to expose the VFs using the sysfs file system.
185 First find the bdf of the DH895xCC device::
189 You should see output similar to::
191 03:00.0 Co-processor: Intel Corporation Coleto Creek PCIe Endpoint
193 Using the sysfs, enable the VFs::
195 echo 32 > /sys/bus/pci/drivers/dh895xcc/0000\:03\:00.0/sriov_numvfs
197 If you get an error, it's likely you're using a QAT kernel driver earlier than kernel 4.4.
199 To verify that the VFs are available for use - use ``lspci -d:443`` to confirm
200 the bdf of the 32 VF devices are available per ``DH895xCC`` device.
202 To complete the installation - follow instructions in `Binding the available VFs to the DPDK UIO driver`_.
205 Binding the available VFs to the DPDK UIO driver
206 ------------------------------------------------
208 The unbind command below assumes ``bdfs`` of ``03:01.00-03:04.07``, if yours are different adjust the unbind command below::
212 insmod ./build/kmod/igb_uio.ko
214 for device in $(seq 1 4); do \
215 for fn in $(seq 0 7); do \
216 echo -n 0000:03:0${device}.${fn} > \
217 /sys/bus/pci/devices/0000\:03\:0${device}.${fn}/driver/unbind; \
221 echo "8086 0443" > /sys/bus/pci/drivers/igb_uio/new_id
223 You can use ``lspci -vvd:443`` to confirm that all devices are now in use by igb_uio kernel driver.