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From: Stephen Hemminger <stephen@networkplumber.org>
To: "Nélio Laranjeiro" <nelio.laranjeiro@6wind.com>
Cc: Pascal Mazon <pascal.mazon@6wind.com>, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 0/2] lib: move Netlink wrapper to lib
Date: Wed, 14 Mar 2018 08:17:36 -0700	[thread overview]
Message-ID: <20180314081736.6b06dd2f@xeon-e3> (raw)
In-Reply-To: <20180314120855.avapkwbwx6hecwmw@laranjeiro-vm.dev.6wind.com>

On Wed, 14 Mar 2018 13:08:55 +0100
Nélio Laranjeiro <nelio.laranjeiro@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@6wind.com> wrote:
> >   
> > > TAP PMD uses a wrapper to communicate with Netlink through a socket.  This
> > > wrapper can be useful for other PMD which may need to communicate also with
> > > the Linux kernel via Netlink.
> > > 
> > > This series moves this wrapper to the lib level to let any PMD implement use
> > > it when necessary.
> > > 
> > > Nelio Laranjeiro (2):
> > >   lib: move Netlink code into a common library
> > >   lib: add request Netlink messages
> > > 
> > >  MAINTAINERS                                        |   3 +
> > >  config/common_base                                 |   6 ++
> > >  config/common_linuxapp                             |   1 +
> > >  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 ++++
> > >  lib/meson.build                                    |   2 +-
> > >  mk/rte.app.mk                                      |   1 +
> > >  17 files changed, 263 insertions(+), 148 deletions(-)
> > >  delete mode 100644 drivers/net/tap/tap_netlink.h
> > >  create mode 100644 lib/librte_netlink/Makefile
> > >  create mode 100644 lib/librte_netlink/meson.build
> > >  rename drivers/net/tap/tap_netlink.c => lib/librte_netlink/rte_netlink.c (77%)
> > >  create mode 100644 lib/librte_netlink/rte_netlink.h
> > >  create mode 100644 lib/librte_netlink/rte_netlink_version.map
> > >   
> > 
> > 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.

  reply	other threads:[~2018-03-14 15:17 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-13 12:28 Nelio Laranjeiro
2018-03-13 12:28 ` [dpdk-dev] [PATCH 1/2] lib: move Netlink code into a common library Nelio Laranjeiro
2018-03-13 13:58   ` Bruce Richardson
2018-03-13 14:58     ` Nélio Laranjeiro
2018-03-13 12:28 ` [dpdk-dev] [PATCH 2/2] lib: add request Netlink messages Nelio Laranjeiro
2018-03-13 21:20 ` [dpdk-dev] [PATCH 0/2] lib: move Netlink wrapper to lib Stephen Hemminger
2018-03-14 12:08   ` Nélio Laranjeiro
2018-03-14 15:17     ` Stephen Hemminger [this message]
2018-03-15 15:39       ` Thomas Monjalon
2018-03-15 16:19         ` Nélio Laranjeiro
2018-03-15 16:26           ` Stephen Hemminger

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