[dpdk-dev] [PATCH 0/2] lib: move Netlink wrapper to lib

Stephen Hemminger stephen at networkplumber.org
Thu Mar 15 17:26:56 CET 2018


On Thu, 15 Mar 2018 17:19:05 +0100
Nélio Laranjeiro <nelio.laranjeiro at 6wind.com> wrote:

> On Thu, Mar 15, 2018 at 04:39:46PM +0100, Thomas Monjalon wrote:
> > 14/03/2018 16:17, Stephen Hemminger:  
> > > On Wed, 14 Mar 2018 13:08:55 +0100
> > > Nélio Laranjeiro <nelio.laranjeiro at 6wind.com> wrote:  
> > > > On Tue, Mar 13, 2018 at 02:20:31PM -0700, Stephen Hemminger wrote:  
> > > > > On Tue, 13 Mar 2018 13:28:25 +0100
> > > > > Nelio Laranjeiro <nelio.laranjeiro at 6wind.com> wrote:  
> > > > > >  drivers/net/tap/Makefile                           |   3 +-
> > > > > >  drivers/net/tap/rte_eth_tap.c                      |  16 +--
> > > > > >  drivers/net/tap/tap_flow.c                         | 118 ++++++++++-----------
> > > > > >  drivers/net/tap/tap_netlink.h                      |  42 --------
> > > > > >  drivers/net/tap/tap_tcmsgs.c                       |  28 ++---
> > > > > >  drivers/net/tap/tap_tcmsgs.h                       |   2 +-
> > > > > >  lib/Makefile                                       |   2 +
> > > > > >  lib/librte_netlink/Makefile                        |  26 +++++
> > > > > >  lib/librte_netlink/meson.build                     |  13 +++
> > > > > >  .../librte_netlink/rte_netlink.c                   |  87 +++++++++++----
> > > > > >  lib/librte_netlink/rte_netlink.h                   |  43 ++++++++
> > > > > >  lib/librte_netlink/rte_netlink_version.map         |  18 ++++  
> > > > > 
> > > > > I might have raised this before; but having yet another netlink library is
> > > > > not a great advantage. It would be much better to use a common external library
> > > > > libmnl which is already available on every distribution.    
> > > > 
> > > > The question is more do we really want to have a dependency on a so
> > > > small wrapper for a socket interface?  
> > > 
> > > Lots of drivers already have dependencies.
> > > And I trust libmnl rather than a reinvented library.  
> > 
> > Are we sure it is commonly installed in distributions?
> > 

iproute2 now mostly requires libmnl. It is used for several networking types
and extended error reporting.


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