[ovs-discuss] hardware offloading in ovs-2.8

[Flavio Leitner]

On Thu, 9 Nov 2017 18:07:05 +0800 (CST)
王嵘 <rong.wang at easystack.cn> wrote:

> hi,
> I rpmbuild  the ovs-dpdk by myself, and the "config/common_base" :
> CONFIG_RTE_LIBRTE_BNX2X_PMD=y
> CONFIG_RTE_LIBRTE_BNX2X_DEBUG=y
> CONFIG_RTE_LIBRTE_BNX2X_DEBUG_INIT=y
> CONFIG_RTE_LIBRTE_BNX2X_DEBUG_RX=y
> CONFIG_RTE_LIBRTE_BNX2X_DEBUG_TX=y
> CONFIG_RTE_LIBRTE_BNX2X_MF_SUPPORT=y
> CONFIG_RTE_LIBRTE_BNX2X_DEBUG_PERIODIC=y
> 
> then ,I build the rpm of dpdk/dpdk-devel，and installed the 2 rpms to rpmbuild  the ovs-dpdk。
> when I used the ovs-dpdk with the bcm-NIC, there comes the error：
> 
> here is the error in "/var/log/openvswitch/ovs-vswitchd.log"
> 2017-11-09T09:28:30.038Z|16773336|dpdk|INFO|EAL: PCI device 0000:20:00.1 on NUMA socket 0
> 2017-11-09T09:28:30.038Z|16773337|dpdk|INFO|EAL:   probe driver: 14e4:168e net_bnx2x
> 2017-11-09T09:28:30.038Z|16773338|dpdk|WARN|EAL: Requested device 0000:20:00.1 cannot be used
> 2017-11-09T09:28:30.038Z|16773339|dpdk|ERR|EAL: Driver cannot attach the device (0000:20:00.1)
> 2017-11-09T09:28:30.038Z|16773340|netdev_dpdk|WARN|Error attaching device '0000:20:00.1' to DPDK
> 2017-11-09T09:28:30.038Z|16773341|netdev|WARN|dpdk-eth2: could not set configuration (Invalid argument)


Looks like DPDK has the pmd enabled and has identified the device.
Did you bind the NIC to the VFIO driver before start OVS?


> And, my NIC firmware is :
> [root at node-4 ~]# ethtool -i eth2
> driver: bnx2x
> version: 1.712.30-0
> firmware-version: bc 7.0.49
> expansion-rom-version:
> bus-info: 0000:20:00.1
> supports-statistics: yes
> supports-test: yes
> supports-eeprom-access: yes
> supports-register-dump: yes
> supports-priv-flags: yes
> 
> 
> Does the fm version not satisfies ? or some other reasons ?

I don't know about FW versions.
fbl


> 
> 
> 
> 
> 
> 
> 在 2017-11-08 21:28:01，"Flavio Leitner" <fbl at sysclose.org> 写道：
> >On Wed, 8 Nov 2017 11:15:00 +0800 (CST)
> >王嵘 <rong.wang at easystack.cn> wrote:
> >  
> >> For now, I 'm using the "NetXtreme II BCM57810 10 Gigabit Ethernet 168e".
> >> Another question,  I found  ovs-dpdk can't bind this NIC. But I find there is the support code for 57810 in the DPDK Bnx2x.
> >> I'm puzzled.
> >> Can you tell me whether  ovs-dpdk support this NIC?
> >> 
> >> Thanks very much!  
> >
> >You need to check that with your software provider. If you compiled
> >manually, then you need to check the options/config used to build DPDK.
> >
> >fbl
> >
> >  
> >> 在 2017-11-08 09:11:25，"Ben Pfaff" <blp at ovn.org> 写道：  
> >> >On Tue, Nov 07, 2017 at 03:49:06PM +0800, 王嵘 wrote:    
> >> >> Hi,
> >> >> I'm using ovs-dpdk（ovs2.8/dpdk17.05.2), and I want to use the offload feature. But I dont know how to enable it?
> >> >> As is represented in the release note 2.8:
> >> >> 
> >> >>    - Addexperimental support for hardware offloading
> >> >>      * HW offloading is disabled by default.
> >> >> 
> >> >>      * HW offloading is done through the TC interface.    
> >> >
> >> >Do you have a supported NIC?  This feature is currently for a particular
> >> >model of Mellanox NICs.    
> >
> >
> >
> >-- 
> >Flavio
> >  



-- 
Flavio