[dpdk-dev] [PATCH] net/nfp: add CPP bridge as service

Thomas Monjalon thomas at monjalon.net
Sun Jan 13 22:41:36 CET 2019


11/01/2019 17:42, Ferruh Yigit:
> On 1/11/2019 1:25 PM, Alejandro Lucero wrote:
> > The Netronome's Network Flow Processor chip is highly programmable
> > with the goal of processing packets at high speed. Processing units
> > and other chip components are available from the host through the
> > PCIe CPP(Command Push Pull bus) interface. The NFP PF PMD configures
> > a CPP handler for setting up and working with vNICs, perform actions
> > like link up or down, or accessing extended stats from the MAC component.
> > 
> > There exist NFP host tools which access the NFP components for
> > programming and debugging but they require the CPP interface. When the
> > PMD is bound to the PF, the DPDK app owns the CPP interface, so these
> > host tools can not access the NFP through other means like NFP kernel
> > drivers.
> > 
> > This patch adds a CPP bridge using the rte_service API which can be
> > enabled by a DPDK app. Interestingly, DPDK clients like OVS will not
> > enable specific service cores, but this can be performed with a
> > secondary process specifically enabling this CPP bridge service and
> > therefore giving access to the NFP to those host tools.
> > 
> > v2:
> >  - Avoid printfs for debugging
> >  - fix compilation problems for powerpc
> > 
> > Signed-off-by: Alejandro Lucero <alejandro.lucero at netronome.com>
> 
> Applied to dpdk-next-net/master, thanks.

It does not compile with 32-bit toolchain.

Please check the occurences of %lu, thanks.




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