From: Fan Zhang <roy.fan.zhang@intel.com>
To: dev@dpdk.org
Cc: declan.doherty@intel.com, pablo.de.lara.guarch@intel.com
Subject: [PATCH v7 11/11] crypto/scheduler: add documentation
Date: Tue, 24 Jan 2017 16:24:01 +0000 [thread overview]
Message-ID: <1485275041-173738-12-git-send-email-roy.fan.zhang@intel.com> (raw)
In-Reply-To: <1485275041-173738-1-git-send-email-roy.fan.zhang@intel.com>
Adds the description of the cryptodev scheduler PMD overview,
limitations, build, instructions, modes, etc.
Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
---
doc/guides/cryptodevs/img/scheduler-overview.svg | 277 +++++++++++++++++++++++
doc/guides/cryptodevs/index.rst | 3 +-
doc/guides/cryptodevs/scheduler.rst | 128 +++++++++++
3 files changed, 407 insertions(+), 1 deletion(-)
create mode 100644 doc/guides/cryptodevs/img/scheduler-overview.svg
create mode 100644 doc/guides/cryptodevs/scheduler.rst
diff --git a/doc/guides/cryptodevs/img/scheduler-overview.svg b/doc/guides/cryptodevs/img/scheduler-overview.svg
new file mode 100644
index 0000000..82bb775
--- /dev/null
+++ b/doc/guides/cryptodevs/img/scheduler-overview.svg
@@ -0,0 +1,277 @@
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diff --git a/doc/guides/cryptodevs/index.rst b/doc/guides/cryptodevs/index.rst
index 06c3f6e..0b50600 100644
--- a/doc/guides/cryptodevs/index.rst
+++ b/doc/guides/cryptodevs/index.rst
@@ -1,5 +1,5 @@
.. BSD LICENSE
- Copyright(c) 2015 - 2016 Intel Corporation. All rights reserved.
+ Copyright(c) 2015 - 2017 Intel Corporation. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@@ -42,6 +42,7 @@ Crypto Device Drivers
kasumi
openssl
null
+ scheduler
snow3g
qat
zuc
diff --git a/doc/guides/cryptodevs/scheduler.rst b/doc/guides/cryptodevs/scheduler.rst
new file mode 100644
index 0000000..70fb62e
--- /dev/null
+++ b/doc/guides/cryptodevs/scheduler.rst
@@ -0,0 +1,128 @@
+.. BSD LICENSE
+ Copyright(c) 2017 Intel Corporation. All rights reserved.
+ 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.
+
+Cryptodev Scheduler Poll Mode Driver Library
+============================================
+
+Scheduler PMD is a software crypto PMD, which has the capabilities of
+attaching hardware and/or software cryptodevs, and distributes ingress
+crypto ops among them in a certain manner.
+
+.. figure:: img/scheduler-overview.*
+
+ Cryptodev Scheduler Overview
+
+
+The Cryptodev Scheduler PMD library (**librte_pmd_crypto_scheduler**) acts as
+a software crypto PMD and shares the same API provided by librte_cryptodev.
+The PMD supports attaching multiple crypto PMDs, software or hardware, as
+slaves, and distributes the crypto workload to them with certain behavior.
+The behaviors are categorizes as different "modes". Basically, a scheduling
+mode defines certain actions for scheduling crypto ops to its slaves.
+
+The librte_pmd_crypto_scheduler library exports a C API which provides an API
+for attaching/detaching slaves, set/get scheduling modes, and enable/disable
+crypto ops reordering.
+
+Limitations
+-----------
+
+* Sessionless crypto operation is not supported
+* OOP crypto operation is not supported when the crypto op reordering feature
+ is enabled.
+
+
+Installation
+------------
+
+To build DPDK with CRYTPO_SCHEDULER_PMD the user is required to set
+CONFIG_RTE_LIBRTE_PMD_CRYPTO_SCHEDULER=y in config/common_base, and
+recompile DPDK
+
+
+Initialization
+--------------
+
+To use the PMD in an application, user must:
+
+* Call rte_eal_vdev_init("crpyto_scheduler") within the application.
+
+* Use --vdev="crpyto_scheduler" in the EAL options, which will call
+ rte_eal_vdev_init() internally.
+
+
+The following parameters (all optional) can be provided in the previous
+two calls:
+
+* socket_id: Specify the socket where the memory for the device is going
+ to be allocated (by default, socket_id will be the socket where the core
+ that is creating the PMD is running on).
+
+* max_nb_sessions: Specify the maximum number of sessions that can be
+ created. This value may be overwritten internally if there are too
+ many devices are attached.
+
+* slave: If a cryptodev has been initialized with specific name, it can be
+ attached to the scheduler using this parameter, simply filling the name
+ here. Multiple cryptodevs can be attached initially by presenting this
+ parameter multiple times.
+
+Example:
+
+.. code-block:: console
+
+ ... --vdev "crypto_aesni_mb_pmd,name=aesni_mb_1" --vdev "crypto_aesni_mb_pmd,name=aesni_mb_2" --vdev "crypto_scheduler_pmd,slave=aesni_mb_1,slave=aesni_mb_2" ...
+
+.. note::
+
+ * The scheduler cryptodev cannot be started unless the scheduling mode
+ is set and at least one slave is attached. Also, to configure the
+ scheduler in the run-time, like attach/detach slave(s), change
+ scheduling mode, or enable/disable crypto op ordering, one should stop
+ the scheduler first, otherwise an error will be returned.
+
+ * The crypto op reordering feature requires using the userdata field of
+ every mbuf to be processed to store temporary data. By the end of
+ processing, the field is set to pointing to NULL, any previously
+ stored value of this field will be lost.
+
+
+Cryptodev Scheduler Modes Overview
+----------------------------------
+
+Currently the Crypto Scheduler PMD library supports following modes of
+operation:
+
+* **CDEV_SCHED_MODE_ROUNDROBIN:**
+
+ Round-robin mode, which distributes the enqueued burst of crypto ops
+ among its slaves in a round-robin manner. This mode may help to fill
+ the throughput gap between the physical core and the existing cryptodevs
+ to increase the overall performance.
--
2.7.4
next prev parent reply other threads:[~2017-01-24 16:23 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-02 14:15 [PATCH] Scheduler: add driver for scheduler crypto pmd Fan Zhang
2016-12-02 14:31 ` Thomas Monjalon
2016-12-02 14:57 ` Bruce Richardson
2016-12-02 16:22 ` Declan Doherty
2016-12-05 15:12 ` Neil Horman
2016-12-07 12:42 ` Declan Doherty
2016-12-07 14:16 ` Neil Horman
2016-12-07 14:46 ` Richardson, Bruce
2016-12-07 16:04 ` Declan Doherty
2016-12-08 14:57 ` Neil Horman
2017-01-03 17:08 ` [PATCH v2] " Fan Zhang
2017-01-03 17:16 ` [PATCH v3] " Fan Zhang
2017-01-17 10:57 ` [PATCH v4] " Fan Zhang
2017-01-17 13:19 ` [PATCH v5] crypto/scheduler: " Fan Zhang
2017-01-17 14:09 ` Declan Doherty
2017-01-17 20:21 ` Thomas Monjalon
2017-01-24 16:06 ` [PATCH v6 00/11] " Fan Zhang
2017-01-24 16:06 ` [PATCH v6 01/11] cryptodev: add scheduler PMD name and type Fan Zhang
2017-01-24 16:06 ` [PATCH v6 02/11] crypto/scheduler: add APIs for scheduler Fan Zhang
2017-01-24 16:06 ` [PATCH v6 03/11] crypto/scheduler: add internal structure declarations Fan Zhang
2017-01-24 16:06 ` [PATCH v6 04/11] crypto/scheduler: add scheduler API implementations Fan Zhang
2017-01-24 16:06 ` [PATCH v6 05/11] crypto/scheduler: add round-robin scheduling mode Fan Zhang
2017-01-24 16:06 ` [PATCH v6 06/11] crypto/scheduler: register scheduler vdev driver Fan Zhang
2017-01-24 16:06 ` [PATCH v6 07/11] crypto/scheduler: register operation function pointer table Fan Zhang
2017-01-24 16:06 ` [PATCH v6 08/11] crypto/scheduler: add scheduler PMD to DPDK compile system Fan Zhang
2017-01-24 16:06 ` [PATCH v6 09/11] crypto/scheduler: add scheduler PMD config options Fan Zhang
2017-01-24 16:06 ` [PATCH v6 10/11] app/test: add unit test for cryptodev scheduler PMD Fan Zhang
2017-01-24 16:06 ` [PATCH v6 11/11] crypto/scheduler: add documentation Fan Zhang
2017-01-24 16:23 ` [PATCH v7 00/11] crypto/scheduler: add driver for scheduler crypto pmd Fan Zhang
2017-01-24 16:23 ` [PATCH v7 01/11] cryptodev: add scheduler PMD name and type Fan Zhang
2017-01-24 16:23 ` [PATCH v7 02/11] crypto/scheduler: add APIs for scheduler Fan Zhang
2017-01-24 16:23 ` [PATCH v7 03/11] crypto/scheduler: add internal structure declarations Fan Zhang
2017-01-24 16:23 ` [PATCH v7 04/11] crypto/scheduler: add scheduler API implementations Fan Zhang
2017-01-24 16:23 ` [PATCH v7 05/11] crypto/scheduler: add round-robin scheduling mode Fan Zhang
2017-01-24 16:23 ` [PATCH v7 06/11] crypto/scheduler: register scheduler vdev driver Fan Zhang
2017-01-24 16:23 ` [PATCH v7 07/11] crypto/scheduler: register operation function pointer table Fan Zhang
2017-01-24 16:23 ` [PATCH v7 08/11] crypto/scheduler: add scheduler PMD to DPDK compile system Fan Zhang
2017-01-24 16:23 ` [PATCH v7 09/11] crypto/scheduler: add scheduler PMD config options Fan Zhang
2017-01-24 16:24 ` [PATCH v7 10/11] app/test: add unit test for cryptodev scheduler PMD Fan Zhang
2017-01-24 16:24 ` Fan Zhang [this message]
2017-01-24 16:29 ` [PATCH v7 00/11] crypto/scheduler: add driver for scheduler crypto pmd De Lara Guarch, Pablo
2017-01-25 14:03 ` De Lara Guarch, Pablo
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