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.. Copyright (c) <2012>, 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.
==================================================
Support of Whitelist Features by Poll Mode Drivers
==================================================
Support igb_uio and vfio driver, if used vfio, kernel need 3.6+ and enable vt-d in bios.
When used vfio , used "modprobe vfio" and "modprobe vfio-pci" insmod vfiod driver, then used
"./tools/dpdk_nic_bind.py --bind=vfio-pci device_bus_id" to bind vfio driver to test driver.
The support of Whitelist offload features by Poll Mode Drivers consists in:
Prerequisites
=============
Assuming that at least a port is connected to a traffic generator,
launch the ``testpmd`` with the following arguments::
./x86_64-default-linuxapp-gcc/build/app/test-pmd/testpmd -c 0xc3 -n 3 -- -i \
--burst=1 --rxpt=0 --rxht=0 --rxwt=0 --txpt=36 --txht=0 --txwt=0 \
--txfreet=32 --rxfreet=64 --mbcache=250 --portmask=0x3
The -n command is used to select the number of memory channels. It should match the number of memory channels on that setup.
Set the verbose level to 1 to display informations for each received packet::
testpmd> set verbose 1
Show port infos for port 0 and store the default MAC address and the maximum
number of MAC addresses::
testpmd> show port info 0
********************* Infos for port 0 *********************
MAC address: 00:1B:21:4D:D2:24
Link status: up
Link speed: 10000 Mbps
Link duplex: full-duplex
Promiscuous mode: enabled
Allmulticast mode: disabled
Maximum number of MAC addresses: 127
Test Case: add/remove mac addresses
===================================
Initialise first port without ``promiscuous mode``::
testpmd> set promisc 0 off
Read the stats for port 0 before sending the packet::
testpmd> show port stats 8
######################## NIC statistics for port 8 ########################
RX-packets: 0 RX-errors: 0 RX-bytes: 64
TX-packets: 0 TX-errors: 0 TX-bytes: 0
############################################################################
Send a packet with default destination MAC address for port 0::
testpmd> show port stats 0
######################## NIC statistics for port 8 ########################
RX-packets: 1 RX-errors: 0 RX-bytes: 128
TX-packets: 0 TX-errors: 0 TX-bytes: 0
############################################################################
Verify that the packet was received (RX-packets incremented).
Send a packet with destination MAC address different than the port 0 address,
let's call it A.::
testpmd> show port stats 0
######################## NIC statistics for port 8 ########################
RX-packets: 1 RX-errors: 0 RX-bytes: 128
TX-packets: 0 TX-errors: 0 TX-bytes: 0
############################################################################
Verify that the packet was not received (RX-packets not incremented).
Add the MAC address A to the port 0::
testpmd> mac_addr add 0 <A>
testpmd> show port stats 0
######################## NIC statistics for port 8 ########################
RX-packets: 2 RX-errors: 0 RX-bytes: 192
TX-packets: 0 TX-errors: 0 TX-bytes: 0
############################################################################
Verify that the packet was received (RX-packets incremented).
Remove the MAC address A to the port 0::
testpmd> mac_addr remove 0 <A>
testpmd> show port stats 0
######################## NIC statistics for port 8 ########################
RX-packets: 2 RX-errors: 0 RX-bytes: 192
TX-packets: 0 TX-errors: 0 TX-bytes: 0
############################################################################
Verify that the packet was not received (RX-packets not incremented).
Test Case: invalid addresses test
=================================
Add a MAC address of all zeroes to the port 0::
testpmd> mac_addr add 0 00:00:00:00:00:00
Verify that the response is "Invalid argument" (-EINVAL)
Remove the default MAC address::
testpmd> mac_addr remove 0 <default MAC address>
Verify that the response is "Address already in use" (-EADDRINUSE)
Add two times the same address::
testpmd> mac_addr add 0 <A>
testpmd> mac_addr add 0 <A>
Verify that there is no error
Add as many different addresses as maximum MAC addresses (n)::
testpmd> mac_addr add 0 <A>
... n-times
testpmd> mac_addr add 0 <A+n>
Add one more different address::
testpmd> mac_addr add 0 <A+n+1>
Verify that the response is "No space left on device" (-ENOSPC)
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