d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

doc: fix titles of ixgbe guide

Browse Source 
The framework of the ixgbe doc is not appropriate,
adjust it.

Fixes: 972e365bfe7a ("doc: nics guide")
CC: stable@dpdk.org

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
This commit is contained in:
Wenzhuo Lu 2017-02-09 09:27:59 +08:00 committed by Ferruh Yigit
parent 3a49ffe38a
commit 31214d491b
1 changed files with 11 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
doc/guides/nics/ixgbe.rst
View File

@ -129,7 +129,7 @@ The tx_rs_thresh value must be greater than or equal to RTE_PMD_IXGBE_TX_MAX_BUR
but less or equal to RTE_IXGBE_TX_MAX_FREE_BUF_SZ.
Consequently, by default the tx_rs_thresh value is in the range 32 to 64.
Feature not Supported by RX Vector PMD
Feature not Supported by TX Vector PMD
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TX vPMD only works when txq_flags is set to IXGBE_SIMPLE_FLAGS.
@ -148,16 +148,16 @@ The following MACROs are used for these three features:
* ETH_TXQ_FLAGS_NOXSUMTCP
Application Programming Interface
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
---------------------------------
In DPDK release v16.11 an API for ixgbe specific functions has been added to the ixgbe PMD.
The declarations for the API functions are in the header ``rte_pmd_ixgbe.h``.
Sample Application Notes
~~~~~~~~~~~~~~~~~~~~~~~~
------------------------
testpmd
^^^^^^^
~~~~~~~
By default, using CONFIG_RTE_IXGBE_RX_OLFLAGS_ENABLE=y:
@ -172,21 +172,24 @@ When CONFIG_RTE_IXGBE_RX_OLFLAGS_ENABLE=n, better performance can be achieved:
./x86_64-native-linuxapp-gcc/app/testpmd -c 300 -n 4 -- -i --burst=32 --rxfreet=32 --mbcache=250 --txpt=32 --rxht=8 --rxwt=0 --txfreet=32 --txrst=32 --txqflags=0xf01 --disable-hw-vlan
l3fwd
^^^^^
~~~~~
When running l3fwd with vPMD, there is one thing to note.
In the configuration, ensure that port_conf.rxmode.hw_ip_checksum=0.
Otherwise, by default, RX vPMD is disabled.
load_balancer
^^^^^^^^^^^^^
~~~~~~~~~~~~~
As in the case of l3fwd, set configure port_conf.rxmode.hw_ip_checksum=0 to enable vPMD.
In addition, for improved performance, use -bsz "(32,32),(64,64),(32,32)" in load_balancer to avoid using the default burst size of 144.
Limitations or Known issues
---------------------------
Malicious Driver Detection not Supported
----------------------------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The Intel x550 series NICs support a feature called MDD (Malicious
Driver Detection) which checks the behavior of the VF driver.
@ -207,7 +210,7 @@ it by default.)
Statistics
----------
~~~~~~~~~~
The statistics of ixgbe hardware must be polled regularly in order for it to
remain consistent. Running a DPDK application without polling the statistics will