48624fd96e
Removed redundant references to Intel(R) DPDK in Programmers Guide. Signed-off-by: Siobhan Butler <siobhan.a.butler@intel.com> Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>
200 lines
8.3 KiB
ReStructuredText
200 lines
8.3 KiB
ReStructuredText
.. 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.
|
|
|
|
Glossary
|
|
========
|
|
|
|
=============== =========================================================================================================
|
|
Term Definition
|
|
=============== =========================================================================================================
|
|
ACL Access Control List
|
|
|
|
API Application Programming Interface
|
|
|
|
ASLR Linux* kernel Address-Space Layout Randomization
|
|
|
|
BSD Berkeley Software Distribution
|
|
|
|
Clr Clear
|
|
|
|
CIDR Classless Inter-Domain Routing
|
|
|
|
Control Plane The control plane is concerned with the routing of packets and with providing a start or end point.
|
|
|
|
Core A core may include several lcores or threads if the processor supports hyperthreading.
|
|
|
|
Core Components A set of libraries provided by the DPDK, including eal, ring, mempool, mbuf, timers, and so on.
|
|
|
|
CPU Central Processing Unit
|
|
|
|
CRC Cyclic Redundancy Check
|
|
|
|
ctrlmbuf An *mbuf* carrying control data.
|
|
|
|
Data Plane In contrast to the control plane,
|
|
the data plane in a network architecture are the layers involved when forwarding packets.
|
|
These layers must be highly optimized to achieve good performance.
|
|
|
|
DIMM Dual In-line Memory Module
|
|
|
|
Doxygen A documentation generator used in the DPDK to generate the API reference.
|
|
|
|
DPDK Data Plane Development Kit
|
|
|
|
DRAM Dynamic Random Access Memory
|
|
|
|
EAL The Environment Abstraction Layer (EAL) provides a generic interface that hides the environment specifics
|
|
from the applications and libraries.
|
|
The services expected from the EAL are:
|
|
development kit loading and launching, core affinity/ assignment procedures,
|
|
system memory allocation/description, PCI bus access, inter-partition communication.
|
|
|
|
FIFO First In First Out
|
|
|
|
FPGA Field Programmable Gate Array
|
|
|
|
GbE Gigabit Ethernet
|
|
|
|
HW Hardware
|
|
|
|
HPET High Precision Event Timer;
|
|
a hardware timer that provides a precise time reference on x86 platforms.
|
|
|
|
ID Identifier
|
|
|
|
IOCTL Input/Output Control
|
|
|
|
I/O Input/Output
|
|
|
|
IP Internet Protocol
|
|
|
|
IPv4 Internet Protocol version 4
|
|
|
|
IPv6 Internet Protocol version 6
|
|
|
|
lcore A logical execution unit of the processor, sometimes called a *hardware thread*.
|
|
|
|
KNI Kernel Network Interface
|
|
|
|
L1 Layer 1
|
|
|
|
L2 Layer 2
|
|
|
|
L3 Layer 3
|
|
|
|
L4 Layer 4
|
|
|
|
LAN Local Area Network
|
|
|
|
LPM Longest Prefix Match
|
|
|
|
master lcore The execution unit that executes the main() function and that launches other lcores.
|
|
|
|
mbuf An mbuf is a data structure used internally to carry messages (mainly network packets).
|
|
The name is derived from BSD stacks.
|
|
To understand the concepts of packet buffers or mbuf,
|
|
refer to *TCP/IP Illustrated, Volume 2: The Implementation*.
|
|
|
|
MESI Modified Exclusive Shared Invalid (CPU cache coherency protocol)
|
|
|
|
MTU Maximum Transfer Unit
|
|
|
|
NIC Network Interface Card
|
|
|
|
OOO Out Of Order (execution of instructions within the CPU pipeline)
|
|
|
|
NUMA Non-uniform Memory Access
|
|
|
|
PCI Peripheral Connect Interface
|
|
|
|
PHY An abbreviation for the physical layer of the OSI model.
|
|
|
|
pktmbuf An *mbuf* carrying a network packet.
|
|
|
|
PMD Poll Mode Driver
|
|
|
|
QoS Quality of Service
|
|
|
|
RCU Read-Copy-Update algorithm, an alternative to simple rwlocks.
|
|
|
|
Rd Read
|
|
|
|
RED Random Early Detection
|
|
|
|
RSS Receive Side Scaling
|
|
|
|
RTE Run Time Environment.
|
|
Provides a fast and simple framework for fast packet processing,
|
|
in a lightweight environment as a Linux* application and
|
|
using Poll Mode Drivers (PMDs) to increase speed.
|
|
|
|
Rx Reception
|
|
|
|
Slave lcore Any *lcore* that is not the *master lcore*.
|
|
|
|
Socket A physical CPU, that includes several *cores*.
|
|
|
|
SLA Service Level Agreement
|
|
|
|
srTCM Single Rate Three Color Marking
|
|
|
|
SRTD Scheduler Round Trip Delay
|
|
|
|
SW Software
|
|
|
|
Target In the DPDK, the target is a combination of architecture,
|
|
machine, executive environment and toolchain.
|
|
For example: i686-native-linuxapp-gcc.
|
|
|
|
TCP Transmission Control Protocol
|
|
|
|
TC Traffic Class
|
|
|
|
TLB Translation Lookaside Buffer
|
|
|
|
TLS Thread Local Storage
|
|
|
|
trTCM Two Rate Three Color Marking
|
|
|
|
TSC Time Stamp Counter
|
|
|
|
Tx Transmission
|
|
|
|
TUN/TAP TUN and TAP are virtual network kernel devices.
|
|
|
|
VLAN Virtual Local Area Network
|
|
|
|
Wr Write
|
|
|
|
WRED Weighted Random Early Detection
|
|
|
|
WRR Weighted Round Robin
|
|
=============== =========================================================================================================
|