-.. BSD LICENSE
- Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
-
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- modification, are permitted provided that the following conditions
- are met:
-
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+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright(c) 2015-2016 Intel Corporation.
Intel(R) QuickAssist (QAT) Crypto Poll Mode Driver
==================================================
First find the BDFs (Bus-Device-Function) of the physical functions (PFs) of
your device, e.g.::
- lspci -d : 37c8
+ lspci -d:37c8
You should see output similar to::
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.
+
+Device and driver naming
+------------------------
+
+The qat crypto driver name is "crypto_qat".
+This name is passed to the dpdk-test-crypto-perf tool in the -devtype parameter.
+The rte_cryptodev_devices_get() can return the devices exposed by a driver.
+
+Each qat crypto device has a unique name, in format
+<pci bdf>_<service>, e.g. "0000:41:01.0_qat_sym".
+This name can be passed to rte_cryptodev_get_dev_id() to get the device_id.
+This is also the format of the slave parameter passed to the crypto scheduler.
+
+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::
+
+ --log-level="7" --log-level="pmd.qat_general,8"