PF driver supports counting VF adminQ messages. If any VF driver
sends much more adminQ messages to its PF driver in a period of
time, it will trigger the PF's message limitation, then in the
next certain amount of seconds the PF driver will ignore any new
adminQ message from that VF.
Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Reviewed-by: Xiaolong Ye <xiaolong.ye@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
add recommended DPDK/kernel driver/firmware version matching list for
i40e for 19.05
Signed-off-by: Lijuan Tu <lijuan.tu@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
1. Fix the lldp stop condition check - for firmware
versions 6.01(for X710)/3.33(for X722) or later we need stop the lldp
2. deferred stats reset in dev_init to avoid some noise be counted.
3. Document known issue for tx bytes decreasing due to link status change
Fixes: 044846f071cc ("net/i40e: stop LLDP before setting local LLDP MIB")
Cc: stable@dpdk.org
Signed-off-by: Chenmin Sun <chenmin.sun@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
Updated the doc and release notes on the support for requesting more
queues.
Signed-off-by: Zhirun Yan <zhirun.yan@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
Previously, there is instability during vector Rx if descriptor
number is not power of 2, e.g. process hang and some Rx packets
are unexpectedly empty. That's because vector Rx mode assumes Rx
descriptor number is power of 2 when doing bit mask.
This patch allows vector mode only when the number of Rx descriptor
is power of 2.
Fixes: 8e109464c022 ("i40e: allow vector Rx and Tx usage")
Fixes: a3c83a2527e1 ("net/i40e: enable runtime queue setup")
Cc: stable@dpdk.org
Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
For IA, the AVX2 vector path is only recommended to be used on later
platforms (identified by AVX512 support, like SKL etc.) This is because
performance benchmark shows downgrade when running AVX2 vector path on
early platform (BDW/HSW) in some cases. But we still observe perf gain
with some real work loading.
So this patch introduced the new devarg use-latest-supported-vec to
force the driver always selecting the latest supported vec path. Then
apps are able to take AVX2 path on early platforms. And this logic can
be re-used if we will have AVX512 vec path in future.
This patch only affects IA platforms. The selected vec path would be
like the following:
Without devarg/devarg = 0:
Machine vPMD
AVX512F AVX2
AVX2 SSE4.2
SSE4.2 SSE4.2
<SSE4.2 Not Supported
With devarg = 1
Machine vPMD
AVX512F AVX2
AVX2 AVX2
SSE4.2 SSE4.2
<SSE4.2 Not Supported
Other platforms can also apply the same logic if necessary in future.
Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
Add suggested DPDK/kernel driver/firmware version matching list for i40e.
Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
For i40evf, internal rx interrupt and adminq interrupt share the same
source, that cause a lot cpu cycles be wasted on interrupt handler
on rx path. This is complained by customers which require low latency
(when set I40E_ITR_INTERVAL to small value), but have to be sufferred by
tremendous interrupts handling that eat significant CPU resources.
The patch disable pci interrupt and remove the interrupt handler,
replace it with a low frequency (50ms) interrupt polling daemon
which is implemented by registering a alarm callback periodly, this
save CPU time significently: On a typical x86 server with 2.1GHz CPU,
with low latency configure (32us) we saw CPU usage from top commmand
reduced from 20% to 0% on management core in testpmd).
Also with the new method we can remove compile option: I40E_ITR_INTERVAL
which is used to balance between low latency and low CPU usage previously.
Now we don't need it since we can reach both at same time.
Suggested-by: Jingjing Wu <jingjing.wu@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
This patch corrects some spelling issues in i40e.rst and clarifies
which controllers and connections are part of the 700 Series.
Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>
Add support for virtual function representor ports to the i40e PF
driver. When SR-IOV virtual functions devices are enabled a
corresponding representor port for each VF can be enabled, in the
process in which the i40e PMD is running, by specifying the
representor devargs with the list of VF ports that representors
are to be created for.
An example of the devargs which would create VF representor for virtual
functions 0,2,4,5,6 and 7 is:
-w DBDF,representor=[0,2,4-7]
and to just specify a single representor on virtual function 3 (switch
port id):
-w DBDF,representor=3
Signed-off-by: Declan Doherty <declan.doherty@intel.com>
Signed-off-by: Mohammad Abdul Awal <mohammad.abdul.awal@intel.com>
Signed-off-by: Remy Horton <remy.horton@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
This patch updates the i40e guide with new device parameter of
'support-multi-driver'.
Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Documentation and help string more clear describe meaning of
arguments for DDP add del function.
Fixes: 856ceb331b0a ("app/testpmd: enable DDP remove profile feature")
Cc: stable@dpdk.org
Signed-off-by: Kirill Rybalchenko <kirill.rybalchenko@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
This patch adds information about i40e queue region related to
the release notes.
Cc: stable@dpdk.org
Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Update i40e.rst to declare DDP support and input set configuration,
as implemented in DPDK 17.11.
Cc: stable@dpdk.org
Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Without this patch, the number of queues per i40e VF is set to 4
by CONFIG_RTE_LIBRTE_I40E_QUEUE_NUM_PER_VF=4 in config/common_base.
It is a fixed value determined at compile time and can't be changed
at run time.
With this patch, the number of queues per i40e VF can be determined
at run time. For example, if the PCI address of an i40e PF is
aaaa:bb.cc, with the EAL parameter -w aaaa:bb.cc,queue-num-per-vf=8,
the number of queues per VF created from this PF is set to 8.
If there is no "queue-num-per-vf" setting in EAL parameters, it uses
the default value of 4. And if the value after the "queue-num-per-vf"
is invalid, it will also use the default value. The valid values can
be 1, 2, 4, 8, or 16.
Signed-off-by: Wei Dai <wei.dai@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
The description of i40e 16 byte descriptor is not clear
enough. Add more details.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
This patch adds link to the DPDK i40e doc,
which is how to upgrade firmware guide for users.
Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
The Linux Getting Started Guide contains
parts which are specific for i40e PMD. This results
in confusion for users which read the guide at their
first try with DPDK.
Moving those parts to the i40e NIC manual.
Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Enable the functions set link down and set link up in i40e by check
phy_type, and fix the issue of auto negotiation failed in XXV710 when
bind kernel driver after unbind from DPDK driver by modify the speed
setting distinguish from set link up and down. With this fix, if unbind
DPDK to bind kernel driver, no need to set auto negotiation and ifconfig
up anymore, remove the part from doc.
Fixes: ca7e599d4506 ("net/i40e: fix link management")
Fixes: 2f1e22817420 ("i40e: skip link control as firmware workaround")
Fixes: 6e145fcc754b ("i40e: support autoneg or force link speed")
Cc: stable@dpdk.org
Signed-off-by: Jeff Guo <jia.guo@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
VF performance is limited by the kernel PCI extended tag setting.
Update the document to explain the known issue and the workaround.
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Refer the section which explains driver compilation and running of
testpmd in Linux, instead of describing it in driver documentation.
Signed-off-by: Shijith Thotton <shijith.thotton@caviumnetworks.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Having packets received without any offload flags given in the mbuf is not
very useful, and performance tests with testpmd indicates little to no
benefit is got with the current code by turning off the flags. This makes
the build-time option pointless, so we can remove it.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Jianbo Liu <jianbo.liu@linaro.org>
This patch fixes a trivial typo in i40e documentation;
The comment about the behavior upon DPDK application quit was wrongly
titled as "after DPDK application exist" instead of "after DPDK
application exit", and this trivial patch fixes it.
Fixes: edf1b618313a ("doc: add limitations for i40e PMD")
Cc: stable@dpdk.org
Signed-off-by: Rami Rosen <rami.rosen@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Set some TCs to strict priority mode.
It's a global setting on a physical port.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
Set a specific TC's max bandwidth on a VF.
User can call the API to set VF TC's max bandwidth
from PF.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
The coremask option in DPDK is difficult to use and we should be
promoting the use of the corelist (-l) option. The patch
adjusts the docs to use -l EAL option instead of the -c option.
The patch only changes the docs and not the code as the -c option
will continue to exist unless it is removed in the future. The -c
option should be kept to maintain backward compatibility.
Signed-off-by: Keith Wiles <keith.wiles@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Rx statistic is incorrect when packet is oversize.
Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Update the doc and release note.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Acked-by: Vincent Jardin <vincent.jardin@6wind.com>
Rename tools/ into usertools/ to differentiate from buildtools/
and devtools/ while making clear these scripts are part of
DPDK runtime.
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Tested-by: Ferruh Yigit <ferruh.yigit@intel.com>
Turning off S-TAG identification will impact floating VEB,
VFs can't communicate with each other.
This patch fixes this issue by judging whether floating
VEB is enabled, S-TAG identification will be turned off
only when floating VEB is disabled.
Fixes: 4d61120d5ce7 ("net/i40e: fix dropping packets with ethertype 0x88A8")
Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
This patch adds "Limitations or Known issues" section for
i40e PMD, including two items:
1. MPLS packet classification on X710/XL710
2. 16 Byte Descriptor cannot be used on DPDK VF
3. Link down with i40e kernel driver after DPDK application exist
Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
The following tools may be installed system-wide.
It may be cleaner and more convenient to find them with the same
dpdk- prefix (especially for autocompletion).
Moreover, the script dpdk_nic_bind.py deserves a new name because it is
not restricted to NICs and can be used for e.g. crypto.
These files are renamed:
pmdinfogen -> dpdk-pmdinfogen
pmdinfo.py -> dpdk-pmdinfo.py
dpdk_pdump -> dpdk-pdump
dpdk_proc_info -> dpdk-procinfo
dpdk_nic_bind.py -> dpdk-devbind.py
setup.sh -> dpdk-setup.sh
The tools pmdinfogen, pmdinfo.py and dpdk_pdump are new in 16.07.
The scripts dpdk_nic_bind.py and setup.sh may have been used with
previous releases by end users. That's why a symbolic link still
provide the old name in the installed tools directory.
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
The standard Virtual Ethernet Bridge(VEB) definition in 1Qbg is a bridge
which has an uplink port to the outside world (maybe another bridge), but
a "floating" VEB is a special VEB without an uplink port to the outside.
Instead, traffic can be sent from one VF to another using the floating
VEB - even when the physical link on the NIC port is down.
This patch adds floating VEB options in the devargs for i40e driver.
Using these parameters, applications can decide whether to use legacy
VEB/VEPA or a floating VEB.
To enable this feature, the user should pass a devargs parameter to the
EAL, for example "-w 84:00.0,enable_floating_veb=1", to control whether
the PMD will to use the floating VEB feature or not.
Once the floating VEB feature is enabled, all the VFs created by
this PF device are connected to the floating VEB.
NOTE: The floating VEB functionality requires a NIC firmware version
of 5.0 or greater.
Signed-off-by: Zhe Tao <zhe.tao@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
