-.. BSD LICENSE
- Copyright(c) 2010-2014 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.
+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright(c) 2010-2014 Intel Corporation.
Packet Framework
================
| | | character device. |
| | | |
+---+------------------+---------------------------------------------------------------------------------------+
+ | 9 | Sym_crypto | Output port used to extract DPDK Cryptodev operations from a fixed offset of the |
+ | | | packet and then enqueue to the Cryptodev PMD. Input port used to dequeue the |
+ | | | Cryptodev operations from the Cryptodev PMD and then retrieve the packets from them. |
+ +---+------------------+---------------------------------------------------------------------------------------+
Port Interface
~~~~~~~~~~~~~~
.. _table_qos_23:
-.. table:: Configuration Parameters Specific to Extendible Bucket Hash Table
+.. table:: Configuration Parameters Specific to Extendable Bucket Hash Table
+---+---------------------------+--------------------------------------------------+
| # | Parameter | Details |
| | | | | |
+---+-------------------------+------------------------------+---------------------------+-------------------------------+
| 2 | Bucket extensions array | n_buckets_ext (configurable) | 32 | This array is only created |
- | | | | | for extendible bucket tables. |
+ | | | | | for extendable bucket tables. |
| | | | | |
+---+-------------------------+------------------------------+---------------------------+-------------------------------+
| 3 | Key array | n_keys | key_size (configurable) | Keys added to the hash table. |
| | | | Entry 0 stores the index (0 .. 3) of the MRU key, while entry 3 |
| | | | stores the index of the LRU key. |
| | | | |
- | | | | For extendible bucket tables, this field represents the next |
+ | | | | For extendable bucket tables, this field represents the next |
| | | | pointer (i.e. the pointer to the next group of 4 keys linked to |
| | | | the current bucket). The next pointer is not NULL if the bucket |
| | | | is currently extended or NULL otherwise. |
| | | | | |
+---+-------------------------+------------------------------+----------------------+------------------------------------+
| 2 | Bucket extensions array | n_buckets_ext (configurable) | *8-byte key size:* | This array is only created for |
- | | | | | extendible bucket tables. |
+ | | | | | extendable bucket tables. |
| | | | | |
| | | | 64 + 4 x entry_size | |
| | | | | |
+===+===============+====================+===============================================================================+
| 1 | Valid | 8 | Bit X (X = 0 .. 3) is set to 1 if key X is valid or to 0 otherwise. |
| | | | |
- | | | | Bit 4 is only used for extendible bucket tables to help with the |
+ | | | | Bit 4 is only used for extendable bucket tables to help with the |
| | | | implementation of the branchless logic. In this case, bit 4 is set to 1 if |
| | | | next pointer is valid (not NULL) or to 0 otherwise. |
| | | | |
| | | | stored as array of 4 entries of 2 bytes each. Entry 0 stores the index |
| | | | (0 .. 3) of the MRU key, while entry 3 stores the index of the LRU key. |
| | | | |
- | | | | For extendible bucket tables, this field represents the next pointer (i.e. |
+ | | | | For extendable bucket tables, this field represents the next pointer (i.e. |
| | | | the pointer to the next group of 4 keys linked to the current bucket). The |
| | | | next pointer is not NULL if the bucket is currently extended or NULL |
| | | | otherwise. |
| | | checksum. |
| | | |
+---+-----------------------------------+---------------------------------------------------------------------+
+ | 7 | Sym Crypto | Generate Cryptodev session based on the user-specified algorithm |
+ | | | and key(s), and assemble the cryptodev operation based on the |
+ | | | predefined offsets. |
+ | | | |
+ +---+-----------------------------------+---------------------------------------------------------------------+
Multicore Scaling
-----------------
* Inline accelerators: NICs, switches, FPGAs, etc;
-* Look-aside accelerators: chipsets, FPGAs, etc.
+* Look-aside accelerators: chipsets, FPGAs, Intel QuickAssist, etc.
Usually, to support a specific functional block, specific implementation of Packet Framework tables and/or ports and/or actions has to be provided for each accelerator,
with all the implementations sharing the same API: pure SW implementation (no acceleration), implementation using accelerator A, implementation using accelerator B, etc.
git.droids-corp.org / dpdk.git / blobdiff