X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Fcryptodevs%2Fqat.rst;h=e905f6d00238185e09065a398925335688256584;hb=62012a76811ec1344231fee57a056bd1f5ab9dde;hp=70bc2b11edaf4ef606a036cb94ce3ad2bc0b4d64;hpb=e1b7f509e6f274e9fd5996454eee9259546a19d4;p=dpdk.git diff --git a/doc/guides/cryptodevs/qat.rst b/doc/guides/cryptodevs/qat.rst index 70bc2b11ed..e905f6d002 100644 --- a/doc/guides/cryptodevs/qat.rst +++ b/doc/guides/cryptodevs/qat.rst @@ -1,44 +1,35 @@ -.. BSD LICENSE - Copyright(c) 2015-2016 Intel Corporation. All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in - the documentation and/or other materials provided with the - distribution. - * Neither the name of Intel Corporation nor the names of its - contributors may be used to endorse or promote products derived - from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2015-2019 Intel Corporation. Intel(R) QuickAssist (QAT) Crypto Poll Mode Driver ================================================== -The QAT PMD provides poll mode crypto driver support for **Intel QuickAssist -Technology DH895xxC**, **Intel QuickAssist Technology C62x** and -**Intel QuickAssist Technology C3xxx** hardware accelerator. +QAT documentation consists of three parts: + +* Details of the symmetric and asymmetric crypto services below. +* Details of the `compression service `_ + in the compressdev drivers section. +* Details of building the common QAT infrastructure and the PMDs to support the + above services. See :ref:`building_qat` below. + + +Symmetric Crypto Service on QAT +------------------------------- + +The QAT symmetric crypto PMD (hereafter referred to as `QAT SYM [PMD]`) provides +poll mode crypto driver support for the following hardware accelerator devices: + +* ``Intel QuickAssist Technology DH895xCC`` +* ``Intel QuickAssist Technology C62x`` +* ``Intel QuickAssist Technology C3xxx`` +* ``Intel QuickAssist Technology D15xx`` +* ``Intel QuickAssist Technology C4xxx`` Features --------- +~~~~~~~~ -The QAT PMD has support for: +The QAT SYM PMD has support for: Cipher algorithms: @@ -50,10 +41,14 @@ Cipher algorithms: * ``RTE_CRYPTO_CIPHER_AES128_CTR`` * ``RTE_CRYPTO_CIPHER_AES192_CTR`` * ``RTE_CRYPTO_CIPHER_AES256_CTR`` +* ``RTE_CRYPTO_CIPHER_AES_XTS`` * ``RTE_CRYPTO_CIPHER_SNOW3G_UEA2`` -* ``RTE_CRYPTO_CIPHER_AES_GCM`` * ``RTE_CRYPTO_CIPHER_NULL`` * ``RTE_CRYPTO_CIPHER_KASUMI_F8`` +* ``RTE_CRYPTO_CIPHER_DES_CBC`` +* ``RTE_CRYPTO_CIPHER_AES_DOCSISBPI`` +* ``RTE_CRYPTO_CIPHER_DES_DOCSISBPI`` +* ``RTE_CRYPTO_CIPHER_ZUC_EEA3`` Hash algorithms: @@ -68,212 +63,297 @@ Hash algorithms: * ``RTE_CRYPTO_AUTH_NULL`` * ``RTE_CRYPTO_AUTH_KASUMI_F9`` * ``RTE_CRYPTO_AUTH_AES_GMAC`` +* ``RTE_CRYPTO_AUTH_ZUC_EIA3`` +* ``RTE_CRYPTO_AUTH_AES_CMAC`` + +Supported AEAD algorithms: + +* ``RTE_CRYPTO_AEAD_AES_GCM`` +* ``RTE_CRYPTO_AEAD_AES_CCM`` Limitations ------------ +~~~~~~~~~~~ -* Chained mbufs are not supported. -* Hash only is not supported except SNOW 3G UIA2 and KASUMI F9. -* Cipher only is not supported except SNOW 3G UEA2, KASUMI F8 and 3DES. * Only supports the session-oriented API implementation (session-less APIs are not supported). -* Not performance tuned. -* SNOW 3G (UEA2) and KASUMI (F8) supported only if cipher length, cipher offset fields are byte-aligned. -* SNOW 3G (UIA2) and KASUMI (F9) supported only if hash length, hash offset fields are byte-aligned. +* SNOW 3G (UEA2), KASUMI (F8) and ZUC (EEA3) supported only if cipher length and offset fields are byte-multiple. +* SNOW 3G (UIA2) and ZUC (EIA3) supported only if hash length and offset fields are byte-multiple. * No BSD support as BSD QAT kernel driver not available. +* ZUC EEA3/EIA3 is not supported by dh895xcc devices +* Maximum additional authenticated data (AAD) for GCM is 240 bytes long and must be passed to the device in a buffer rounded up to the nearest block-size multiple (x16) and padded with zeros. +* 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 +~~~~~~~~~~~~~~~~~~~~~~~~ -Installation ------------- +When using KASUMI F9 authentication algorithm, the input buffer must be +constructed according to the +`3GPP KASUMI specification `_ +(section 4.4, page 13). The 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. -To use the DPDK QAT PMD an SRIOV-enabled QAT kernel driver is required. The -VF devices exposed by this driver will be used by QAT PMD. +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. -To enable QAT in DPDK, follow the instructions mentioned in -http://dpdk.org/doc/guides/linux_gsg/build_dpdk.html +Asymmetric Crypto Service on QAT +-------------------------------- -Quick instructions as follows: +The QAT asymmetric crypto PMD (hereafter referred to as `QAT ASYM [PMD]`) provides +poll mode crypto driver support for the following hardware accelerator devices: -.. code-block:: console +* ``Intel QuickAssist Technology DH895xCC`` +* ``Intel QuickAssist Technology C62x`` +* ``Intel QuickAssist Technology C3xxx`` +* ``Intel QuickAssist Technology D15xx`` +* ``Intel QuickAssist Technology C4xxx`` - make config T=x86_64-native-linuxapp-gcc - sed -i 's,\(CONFIG_RTE_LIBRTE_PMD_QAT\)=n,\1=y,' build/.config - make +The QAT ASYM PMD has support for: -If you are running on kernel 4.4 or greater, see instructions for -`Installation using kernel.org driver`_ below. If you are on a kernel earlier -than 4.4, see `Installation using 01.org QAT driver`_. +* ``RTE_CRYPTO_ASYM_XFORM_MODEX`` +* ``RTE_CRYPTO_ASYM_XFORM_MODINV`` -For **Intel QuickAssist Technology C62x** and **Intel QuickAssist Technology C3xxx** -device, kernel 4.5 or greater is needed. -See instructions for `Installation using kernel.org driver`_ below. +Limitations +~~~~~~~~~~~ +* Big integers longer than 4096 bits are not supported. +* Queue pairs are not thread-safe (that is, within a single queue pair, RX and TX from different lcores is not supported). -Installation using 01.org QAT driver ------------------------------------- +.. _building_qat: -NOTE: There is no driver available for **Intel QuickAssist Technology C62x** and -**Intel QuickAssist Technology C3xxx** devices on 01.org. +Building PMDs on QAT +-------------------- -Download the latest QuickAssist Technology Driver from `01.org -`_ -Consult the *Getting Started Guide* at the same URL for further information. +A QAT device can host multiple acceleration services: -The steps below assume you are: +* symmetric cryptography +* data compression +* asymmetric cryptography -* Building on a platform with one ``DH895xCC`` device. -* Using package ``qatmux.l.2.3.0-34.tgz``. -* On Fedora21 kernel ``3.17.4-301.fc21.x86_64``. +These services are provided to DPDK applications via PMDs which register to +implement the corresponding cryptodev and compressdev APIs. The PMDs use +common QAT driver code which manages the QAT PCI device. They also depend on a +QAT kernel driver being installed on the platform, see :ref:`qat_kernel` below. -In the BIOS ensure that SRIOV is enabled and VT-d is disabled. -Uninstall any existing QAT driver, for example by running: +Configuring and Building the DPDK QAT PMDs +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -* ``./installer.sh uninstall`` in the directory where originally installed. -* or ``rmmod qat_dh895xcc; rmmod intel_qat``. +Further information on configuring, building and installing DPDK is described +`here `_. -Build and install the SRIOV-enabled QAT driver:: - mkdir /QAT - cd /QAT - # copy qatmux.l.2.3.0-34.tgz to this location - tar zxof qatmux.l.2.3.0-34.tgz +Quick instructions for QAT cryptodev PMD are as follows: - export ICP_WITHOUT_IOMMU=1 - ./installer.sh install QAT1.6 host +.. code-block:: console -You can use ``cat /proc/icp_dh895xcc_dev0/version`` to confirm the driver is correctly installed. -You can use ``lspci -d:443`` to confirm the bdf of the 32 VF devices are available per ``DH895xCC`` device. + cd to the top-level DPDK directory + make defconfig + sed -i 's,\(CONFIG_RTE_LIBRTE_PMD_QAT_SYM\)=n,\1=y,' build/.config + or/and + sed -i 's,\(CONFIG_RTE_LIBRTE_PMD_QAT_ASYM\)=n,\1=y,' build/.config + make -To complete the installation - follow instructions in `Binding the available VFs to the DPDK UIO driver`_. +Quick instructions for QAT compressdev PMD are as follows: -**Note**: If using a later kernel and the build fails with an error relating to ``strict_stroul`` not being available apply the following patch: +.. code-block:: console -.. code-block:: diff + cd to the top-level DPDK directory + make defconfig + make - /QAT/QAT1.6/quickassist/utilities/downloader/Target_CoreLibs/uclo/include/linux/uclo_platform.h - + #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,5) - + #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; if (kstrtoul((str), (base), (num))) printk("Error strtoull convert %s\n", str); } - + #else - #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38) - #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; if (strict_strtoull((str), (base), (num))) printk("Error strtoull convert %s\n", str); } - #else - #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25) - #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; strict_strtoll((str), (base), (num));} - #else - #define STR_TO_64(str, base, num, endPtr) \ - do { \ - if (str[0] == '-') \ - { \ - *(num) = -(simple_strtoull((str+1), &(endPtr), (base))); \ - }else { \ - *(num) = simple_strtoull((str), &(endPtr), (base)); \ - } \ - } while(0) - + #endif - #endif - #endif +.. _building_qat_config: -If the build fails due to missing header files you may need to do following: +Build Configuration +~~~~~~~~~~~~~~~~~~~ -* ``sudo yum install zlib-devel`` -* ``sudo yum install openssl-devel`` +These are the build configuration options affecting QAT, and their default values: -If the build or install fails due to mismatching kernel sources you may need to do the following: +.. code-block:: console -* ``sudo yum install kernel-headers-`uname -r``` -* ``sudo yum install kernel-src-`uname -r``` -* ``sudo yum install kernel-devel-`uname -r``` + CONFIG_RTE_LIBRTE_PMD_QAT=y + CONFIG_RTE_LIBRTE_PMD_QAT_SYM=n + CONFIG_RTE_LIBRTE_PMD_QAT_ASYM=n + CONFIG_RTE_PMD_QAT_MAX_PCI_DEVICES=48 + CONFIG_RTE_PMD_QAT_COMP_IM_BUFFER_SIZE=65536 +CONFIG_RTE_LIBRTE_PMD_QAT must be enabled for any QAT PMD to be built. -Installation using kernel.org driver ------------------------------------- +Both QAT SYM PMD and QAT ASYM PMD have an external dependency on libcrypto, so are not +built by default. CONFIG_RTE_LIBRTE_PMD_QAT_SYM/ASYM should be enabled to build them. -For **Intel QuickAssist Technology DH895xxC**: +The QAT compressdev PMD has no external dependencies, so needs no configuration +options and is built by default. -Assuming you are running on at least a 4.4 kernel, you can use the stock kernel.org QAT -driver to start the QAT hardware. +The number of VFs per PF varies - see table below. If multiple QAT packages are +installed on a platform then CONFIG_RTE_PMD_QAT_MAX_PCI_DEVICES should be +adjusted to the number of VFs which the QAT common code will need to handle. -The steps below assume you are: +.. Note:: -* Running DPDK on a platform with one ``DH895xCC`` device. -* On a kernel at least version 4.4. + There are separate config items (not QAT-specific) for max cryptodevs + CONFIG_RTE_CRYPTO_MAX_DEVS and max compressdevs CONFIG_RTE_COMPRESS_MAX_DEVS, + if necessary these should be adjusted to handle the total of QAT and other + devices which the process will use. In particular for crypto, where each + QAT VF may expose two crypto devices, sym and asym, it may happen that the + number of devices will be bigger than MAX_DEVS and the process will show an error + during PMD initialisation. To avoid this problem CONFIG_RTE_CRYPTO_MAX_DEVS may be + increased or -w, pci-whitelist domain:bus:devid:func option may be used. -In BIOS ensure that SRIOV is enabled and VT-d is disabled. -Ensure the QAT driver is loaded on your system, by executing:: +QAT compression PMD needs intermediate buffers to support Deflate compression +with Dynamic Huffman encoding. CONFIG_RTE_PMD_QAT_COMP_IM_BUFFER_SIZE +specifies the size of a single buffer, the PMD will allocate a multiple of these, +plus some extra space for associated meta-data. For GEN2 devices, 20 buffers are +allocated while for GEN1 devices, 12 buffers are allocated, plus 1472 bytes overhead. - lsmod | grep qat +.. Note:: -You should see the following output:: + If the compressed output of a Deflate operation using Dynamic Huffman + Encoding is too big to fit in an intermediate buffer, then the + operation will fall back to fixed compression rather than failing the operation. + To avoid this less performant case, applications should configure + the intermediate buffer size to be larger than the expected input data size + (compressed output size is usually unknown, so the only option is to make + larger than the input size). - qat_dh895xcc 5626 0 - intel_qat 82336 1 qat_dh895xcc -Next, you need to expose the Virtual Functions (VFs) using the sysfs file system. +Device and driver naming +~~~~~~~~~~~~~~~~~~~~~~~~ -First find the bdf of the physical function (PF) of the DH895xCC device:: +* The qat cryptodev symmetric crypto driver name is "crypto_qat". +* The qat cryptodev asymmetric crypto driver name is "crypto_qat_asym". - lspci -d : 435 +The "rte_cryptodev_devices_get()" returns the devices exposed by either of these drivers. -You should see output similar to:: +* Each qat sym crypto device has a unique name, in format + "_", e.g. "0000:41:01.0_qat_sym". +* Each qat asym crypto device has a unique name, in format + "_", e.g. "0000:41:01.0_qat_asym". + This name can be passed to "rte_cryptodev_get_dev_id()" to get the device_id. - 03:00.0 Co-processor: Intel Corporation Coleto Creek PCIe Endpoint +.. Note:: -Using the sysfs, enable the VFs:: + The cryptodev driver name is passed to the dpdk-test-crypto-perf tool in the "-devtype" parameter. - echo 32 > /sys/bus/pci/drivers/dh895xcc/0000\:03\:00.0/sriov_numvfs + The qat crypto device name is in the format of the slave parameter passed to the crypto scheduler. -If you get an error, it's likely you're using a QAT kernel driver earlier than kernel 4.4. +* The qat compressdev driver name is "compress_qat". + The rte_compressdev_devices_get() returns the devices exposed by this driver. -To verify that the VFs are available for use - use ``lspci -d:443`` to confirm -the bdf of the 32 VF devices are available per ``DH895xCC`` device. +* Each qat compression device has a unique name, in format + _, e.g. "0000:41:01.0_qat_comp". + This name can be passed to rte_compressdev_get_dev_id() to get the device_id. -To complete the installation - follow instructions in `Binding the available VFs to the DPDK UIO driver`_. +.. _qat_kernel: -**Note**: If the QAT kernel modules are not loaded and you see an error like - ``Failed to load MMP firmware qat_895xcc_mmp.bin`` this may be as a - result of not using a distribution, but just updating the kernel directly. +Dependency on the QAT kernel driver +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -Download firmware from the kernel firmware repo at: -http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/ +To use QAT an SRIOV-enabled QAT kernel driver is required. The VF +devices created and initialised by this driver will be used by the QAT PMDs. -Copy qat binaries to /lib/firmware: -* ``cp qat_895xcc.bin /lib/firmware`` -* ``cp qat_895xcc_mmp.bin /lib/firmware`` +Instructions for installation are below, but first an explanation of the +relationships between the PF/VF devices and the PMDs visible to +DPDK applications. -cd to your linux source root directory and start the qat kernel modules: -* ``insmod ./drivers/crypto/qat/qat_common/intel_qat.ko`` -* ``insmod ./drivers/crypto/qat/qat_dh895xcc/qat_dh895xcc.ko`` +Each QuickAssist PF device exposes a number of VF devices. Each VF device can +enable one symmetric cryptodev PMD and/or one asymmetric 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**:The following warning in /var/log/messages can be ignored: - ``IOMMU should be enabled for SR-IOV to work correctly`` +.. Note:: -For **Intel QuickAssist Technology C62x**: -Assuming you are running on at least a 4.5 kernel, you can use the stock kernel.org QAT -driver to start the QAT hardware. + 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. -The steps below assume you are: + Conversely one DPDK process can use one or more QAT VFs and can expose both + cryptodev and compressdev instances on each of those VFs. + + +Available kernel drivers +~~~~~~~~~~~~~~~~~~~~~~~~ + +Kernel drivers for each device for each service are listed in the following table. (Scroll right +to see the full table) + + +.. _table_qat_pmds_drivers: -* Running DPDK on a platform with one ``C62x`` device. -* On a kernel at least version 4.5. +.. table:: QAT device generations, devices and drivers -In BIOS ensure that SRIOV is enabled and VT-d is disabled. + +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+ + | S | A | C | Gen | Device | Driver/ver | Kernel Module | Pci Driver | PF Did | #PFs | VF Did | VFs/PF | + +=====+=====+=====+=====+==========+===============+===============+============+========+======+========+========+ + | Yes | No | No | 1 | DH895xCC | linux/4.4+ | qat_dh895xcc | dh895xcc | 435 | 1 | 443 | 32 | + +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+ + | Yes | Yes | No | " | " | 01.org/4.2.0+ | " | " | " | " | " | " | + +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+ + | Yes | Yes | Yes | " | " | 01.org/4.3.0+ | " | " | " | " | " | " | + +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+ + | Yes | No | No | 2 | C62x | linux/4.5+ | qat_c62x | c6xx | 37c8 | 3 | 37c9 | 16 | + +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+ + | Yes | Yes | Yes | " | " | 01.org/4.2.0+ | " | " | " | " | " | " | + +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+ + | Yes | No | No | 2 | C3xxx | linux/4.5+ | qat_c3xxx | c3xxx | 19e2 | 1 | 19e3 | 16 | + +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+ + | Yes | Yes | Yes | " | " | 01.org/4.2.0+ | " | " | " | " | " | " | + +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+ + | Yes | No | No | 2 | D15xx | p | qat_d15xx | d15xx | 6f54 | 1 | 6f55 | 16 | + +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+ + | Yes | No | No | 3 | C4xxx | p | qat_c4xxx | c4xxx | 18a0 | 1 | 18a1 | 128 | + +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+ -Ensure the QAT driver is loaded on your system, by executing:: +The first 3 columns indicate the service: - lsmod | grep qat +* S = Symmetric crypto service (via cryptodev API) +* A = Asymmetric crypto service (via cryptodev API) +* C = Compression service (via compressdev API) -You should see the following output:: +The ``Driver`` column indicates either the Linux kernel version in which +support for this device was introduced or a driver available on Intel's 01.org +website. There are both linux in-tree and 01.org kernel drivers available for some +devices. p = release pending. - qat_c62x 16384 0 - intel_qat 122880 1 qat_c62x +If you are running on a kernel which includes a driver for your device, see +`Installation using kernel.org driver`_ below. Otherwise see +`Installation using 01.org QAT driver`_. -Next, you need to expose the VFs using the sysfs file system. -First find the bdf of the C62x device:: +Installation using kernel.org driver +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The examples below are based on the C62x device, if you have a different device +use the corresponding values in the above table. + +In BIOS ensure that SRIOV is enabled and either: + +* Disable VT-d or +* Enable VT-d and set ``"intel_iommu=on iommu=pt"`` in the grub file. + +Check that the QAT driver is loaded on your system, by executing:: + + lsmod | grep qa + +You should see the kernel module for your device listed, e.g.:: + + qat_c62x 5626 0 + intel_qat 82336 1 qat_c62x + +Next, you need to expose the Virtual Functions (VFs) using the sysfs file system. + +First find the BDFs (Bus-Device-Function) of the physical functions (PFs) of +your device, e.g.:: lspci -d:37c8 @@ -283,129 +363,260 @@ You should see output similar to:: 3d:00.0 Co-processor: Intel Corporation Device 37c8 3f:00.0 Co-processor: Intel Corporation Device 37c8 -For each c62x device there are 3 PFs. -Using the sysfs, for each PF, enable the 16 VFs:: +Enable the VFs for each PF by echoing the number of VFs per PF to the pci driver:: - echo 16 > /sys/bus/pci/drivers/c6xx/0000\:1a\:00.0/sriov_numvfs + echo 16 > /sys/bus/pci/drivers/c6xx/0000:1a:00.0/sriov_numvfs + echo 16 > /sys/bus/pci/drivers/c6xx/0000:3d:00.0/sriov_numvfs + echo 16 > /sys/bus/pci/drivers/c6xx/0000:3f:00.0/sriov_numvfs -If you get an error, it's likely you're using a QAT kernel driver earlier than kernel 4.5. +Check that the VFs are available for use. For example ``lspci -d:37c9`` should +list 48 VF devices available for a ``C62x`` device. -To verify that the VFs are available for use - use ``lspci -d:37c9`` to confirm -the bdf of the 48 VF devices are available per ``C62x`` device. +To complete the installation follow the instructions in +`Binding the available VFs to the DPDK UIO driver`_. -To complete the installation - follow instructions in `Binding the available VFs to the DPDK UIO driver`_. +.. Note:: -For **Intel QuickAssist Technology C3xxx**: -Assuming you are running on at least a 4.5 kernel, you can use the stock kernel.org QAT -driver to start the QAT hardware. + If the QAT kernel modules are not loaded and you see an error like ``Failed + to load MMP firmware qat_895xcc_mmp.bin`` in kernel logs, this may be as a + result of not using a distribution, but just updating the kernel directly. + + Download firmware from the `kernel firmware repo + `_. + + Copy qat binaries to ``/lib/firmware``:: + + cp qat_895xcc.bin /lib/firmware + cp qat_895xcc_mmp.bin /lib/firmware + + Change to your linux source root directory and start the qat kernel modules:: + + insmod ./drivers/crypto/qat/qat_common/intel_qat.ko + insmod ./drivers/crypto/qat/qat_dh895xcc/qat_dh895xcc.ko + + +.. Note:: + + If you see the following warning in ``/var/log/messages`` it can be ignored: + ``IOMMU should be enabled for SR-IOV to work correctly``. + + +Installation using 01.org QAT driver +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Download the latest QuickAssist Technology Driver from `01.org +`_. +Consult the *Getting Started Guide* at the same URL for further information. The steps below assume you are: -* Running DPDK on a platform with one ``C3xxx`` device. -* On a kernel at least version 4.5. +* Building on a platform with one ``C62x`` device. +* Using package ``qat1.7.l.4.2.0-000xx.tar.gz``. +* On Fedora26 kernel ``4.11.11-300.fc26.x86_64``. -In BIOS ensure that SRIOV is enabled and VT-d is disabled. +In the BIOS ensure that SRIOV is enabled and VT-d is disabled. -Ensure the QAT driver is loaded on your system, by executing:: +Uninstall any existing QAT driver, for example by running: - lsmod | grep qat +* ``./installer.sh uninstall`` in the directory where originally installed. -You should see the following output:: - qat_c3xxx 16384 0 - intel_qat 122880 1 qat_c3xxx +Build and install the SRIOV-enabled QAT driver:: -Next, you need to expose the Virtual Functions (VFs) using the sysfs file system. + mkdir /QAT + cd /QAT -First find the bdf of the physical function (PF) of the C3xxx device + # Copy the package to this location and unpack + tar zxof qat1.7.l.4.2.0-000xx.tar.gz - lspci -d:19e2 + ./configure --enable-icp-sriov=host + make install -You should see output similar to:: +You can use ``cat /sys/kernel/debug/qat/version/fw`` to confirm the driver is correctly installed and is using firmware version 4.2.0. +You can use ``lspci -d:37c9`` to confirm the presence of the 16 VF devices available per ``C62x`` PF. - 01:00.0 Co-processor: Intel Corporation Device 19e2 +Confirm the driver is correctly installed and is using firmware version 4.2.0:: -For c3xxx device there is 1 PFs. -Using the sysfs, enable the 16 VFs:: + cat /sys/kernel/debug/qat/version/fw - echo 16 > /sys/bus/pci/drivers/c3xxx/0000\:01\:00.0/sriov_numvfs -If you get an error, it's likely you're using a QAT kernel driver earlier than kernel 4.5. +Confirm the presence of 48 VF devices - 16 per PF:: + + lspci -d:37c9 + -To verify that the VFs are available for use - use ``lspci -d:19e3`` to confirm -the bdf of the 16 VF devices are available per ``C3xxx`` device. To complete the installation - follow instructions in `Binding the available VFs to the DPDK UIO driver`_. +.. Note:: + + If using a later kernel and the build fails with an error relating to + ``strict_stroul`` not being available apply the following patch: + + .. code-block:: diff + + /QAT/QAT1.6/quickassist/utilities/downloader/Target_CoreLibs/uclo/include/linux/uclo_platform.h + + #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,5) + + #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; if (kstrtoul((str), (base), (num))) printk("Error strtoull convert %s\n", str); } + + #else + #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38) + #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; if (strict_strtoull((str), (base), (num))) printk("Error strtoull convert %s\n", str); } + #else + #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25) + #define STR_TO_64(str, base, num, endPtr) {endPtr=NULL; strict_strtoll((str), (base), (num));} + #else + #define STR_TO_64(str, base, num, endPtr) \ + do { \ + if (str[0] == '-') \ + { \ + *(num) = -(simple_strtoull((str+1), &(endPtr), (base))); \ + }else { \ + *(num) = simple_strtoull((str), &(endPtr), (base)); \ + } \ + } while(0) + + #endif + #endif + #endif + + +.. Note:: + + If the build fails due to missing header files you may need to do following:: + + sudo yum install zlib-devel + sudo yum install openssl-devel + sudo yum install libudev-devel + +.. Note:: + + If the build or install fails due to mismatching kernel sources you may need to do the following:: + + sudo yum install kernel-headers-`uname -r` + sudo yum install kernel-src-`uname -r` + sudo yum install kernel-devel-`uname -r` + + Binding the available VFs to the DPDK UIO driver ------------------------------------------------- +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -For **Intel(R) QuickAssist Technology DH895xcc** device: -The unbind command below assumes ``bdfs`` of ``03:01.00-03:04.07``, if yours are different adjust the unbind command below:: +Unbind the VFs from the stock driver so they can be bound to the uio driver. - cd $RTE_SDK - modprobe uio - insmod ./build/kmod/igb_uio.ko +For an Intel(R) QuickAssist Technology DH895xCC device +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - for device in $(seq 1 4); do \ - for fn in $(seq 0 7); do \ - echo -n 0000:03:0${device}.${fn} > \ - /sys/bus/pci/devices/0000\:03\:0${device}.${fn}/driver/unbind; \ - done; \ - done +The unbind command below assumes ``BDFs`` of ``03:01.00-03:04.07``, if your +VFs are different adjust the unbind command below:: - echo "8086 0443" > /sys/bus/pci/drivers/igb_uio/new_id + for device in $(seq 1 4); do \ + for fn in $(seq 0 7); do \ + echo -n 0000:03:0${device}.${fn} > \ + /sys/bus/pci/devices/0000\:03\:0${device}.${fn}/driver/unbind; \ + done; \ + done -You can use ``lspci -vvd:443`` to confirm that all devices are now in use by igb_uio kernel driver. +For an Intel(R) QuickAssist Technology C62x device +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -For **Intel(R) QuickAssist Technology C62x** device: -The unbind command below assumes ``bdfs`` of ``1a:01.00-1a:02.07``, ``3d:01.00-3d:02.07`` and ``3f:01.00-3f:02.07``, -if yours are different adjust the unbind command below:: +The unbind command below assumes ``BDFs`` of ``1a:01.00-1a:02.07``, +``3d:01.00-3d:02.07`` and ``3f:01.00-3f:02.07``, if your VFs are different +adjust the unbind command below:: - cd $RTE_SDK - modprobe uio - insmod ./build/kmod/igb_uio.ko + for device in $(seq 1 2); do \ + for fn in $(seq 0 7); do \ + echo -n 0000:1a:0${device}.${fn} > \ + /sys/bus/pci/devices/0000\:1a\:0${device}.${fn}/driver/unbind; \ - for device in $(seq 1 2); do \ - for fn in $(seq 0 7); do \ - echo -n 0000:1a:0${device}.${fn} > \ - /sys/bus/pci/devices/0000\:1a\:0${device}.${fn}/driver/unbind; \ + echo -n 0000:3d:0${device}.${fn} > \ + /sys/bus/pci/devices/0000\:3d\:0${device}.${fn}/driver/unbind; \ - echo -n 0000:3d:0${device}.${fn} > \ - /sys/bus/pci/devices/0000\:3d\:0${device}.${fn}/driver/unbind; \ + echo -n 0000:3f:0${device}.${fn} > \ + /sys/bus/pci/devices/0000\:3f\:0${device}.${fn}/driver/unbind; \ + done; \ + done - echo -n 0000:3f:0${device}.${fn} > \ - /sys/bus/pci/devices/0000\:3f\:0${device}.${fn}/driver/unbind; \ - done; \ - done +For Intel(R) QuickAssist Technology C3xxx or D15xx device +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - echo "8086 37c9" > /sys/bus/pci/drivers/igb_uio/new_id +The unbind command below assumes ``BDFs`` of ``01:01.00-01:02.07``, if your +VFs are different adjust the unbind command below:: -You can use ``lspci -vvd:37c9`` to confirm that all devices are now in use by igb_uio kernel driver. + for device in $(seq 1 2); do \ + for fn in $(seq 0 7); do \ + echo -n 0000:01:0${device}.${fn} > \ + /sys/bus/pci/devices/0000\:01\:0${device}.${fn}/driver/unbind; \ + done; \ + done -For **Intel(R) QuickAssist Technology C3xxx** device: -The unbind command below assumes ``bdfs`` of ``01:01.00-01:02.07``, -if yours are different adjust the unbind command below:: +Bind to the DPDK uio driver +^^^^^^^^^^^^^^^^^^^^^^^^^^^ - cd $RTE_SDK - modprobe uio - insmod ./build/kmod/igb_uio.ko +Install the DPDK igb_uio driver, bind the VF PCI Device id to it and use lspci +to confirm the VF devices are now in use by igb_uio kernel driver, +e.g. for the C62x device:: - for device in $(seq 1 2); do \ - for fn in $(seq 0 7); do \ - echo -n 0000:01:0${device}.${fn} > \ - /sys/bus/pci/devices/0000\:01\:0${device}.${fn}/driver/unbind; \ + cd to the top-level DPDK directory + modprobe uio + insmod ./build/kmod/igb_uio.ko + echo "8086 37c9" > /sys/bus/pci/drivers/igb_uio/new_id + lspci -vvd:37c9 - done; \ - done - echo "8086 19e3" > /sys/bus/pci/drivers/igb_uio/new_id +Another way to bind the VFs to the DPDK UIO driver is by using the +``dpdk-devbind.py`` script:: -You can use ``lspci -vvd:19e3`` to confirm that all devices are now in use by igb_uio kernel driver. + cd to the top-level DPDK directory + ./usertools/dpdk-devbind.py -b igb_uio 0000:03:01.1 +Testing +~~~~~~~ -The other way to bind the VFs to the DPDK UIO driver is by using the ``dpdk-devbind.py`` script: +QAT SYM crypto PMD can be tested by running the test application:: -.. code-block:: console + make defconfig + make -j + cd ./build/app + ./test -l1 -n1 -w + RTE>>cryptodev_qat_autotest + +QAT ASYM crypto PMD can be tested by running the test application:: + + make defconfig + make -j + cd ./build/app + ./test -l1 -n1 -w + RTE>>cryptodev_qat_asym_autotest + +QAT compression PMD can be tested by running the test application:: + + make defconfig + sed -i 's,\(CONFIG_RTE_COMPRESSDEV_TEST\)=n,\1=y,' build/.config + make -j + cd ./build/app + ./test -l1 -n1 -w + RTE>>compressdev_autotest + + +Debugging +~~~~~~~~~ + +There are 2 sets of trace available via the dynamic logging feature: + +* pmd.qat_dp exposes trace on the data-path. +* pmd.qat_general exposes all other trace. + +pmd.qat exposes both sets of traces. +They can be enabled using the log-level option (where 8=maximum log level) on +the process cmdline, e.g. using any of the following:: + + --log-level="pmd.qat_general,8" + --log-level="pmd.qat_dp,8" + --log-level="pmd.qat,8" + +.. Note:: + + The global RTE_LOG_DP_LEVEL overrides data-path trace so must be set to + RTE_LOG_DEBUG to see all the trace. This variable is in config/rte_config.h + for meson build and config/common_base for gnu make. + Also the dynamic global log level overrides both sets of trace, so e.g. no + QAT trace would display in this case:: - cd $RTE_SDK - ./tools/dpdk-devbind.py -b igb_uio 0000:03:01.1 + --log-level="7" --log-level="pmd.qat_general,8"