From: Stephen Hemminger <stephen@networkplumber.org>
To: Dan Gora <dg@adax.com>
Cc: Ferruh Yigit <ferruh.yigit@intel.com>, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2 10/10] kni: add API to set link status on kernel interface
Date: Wed, 29 Aug 2018 15:00:14 -0700 [thread overview]
Message-ID: <20180829150014.0ae59128@xeon-e3> (raw)
In-Reply-To: <CAGyogRaVWeCdEqL_-PqhMvd784axgn2ntm9ZHwBv7CNfUX0adQ@mail.gmail.com>
On Wed, 29 Aug 2018 18:02:06 -0300
Dan Gora <dg@adax.com> wrote:
> On Wed, Aug 29, 2018 at 12:54 PM, Stephen Hemminger
> <stephen@networkplumber.org> wrote:
> > On Thu, 28 Jun 2018 18:55:08 -0700
> > Dan Gora <dg@adax.com> wrote:
> >
> >> Add a new API function to KNI, rte_kni_update_link() to allow DPDK
> >> applications to update the link state for the KNI network interfaces
> >> in the linux kernel.
> >>
> >> Note that the default carrier state is set to off when the interface
> >> is opened.
> >>
> >> Signed-off-by: Dan Gora <dg@adax.com>
> >
> > Do you really need a special ioctl for this?
> > There is already ability to set link state via sysfs or netlink.
>
> I think yes.. AFAIK sysfs does not constitute a stable API;
It is a stable API on Linux.
> it's only
> available for Linux (yes, I know KNI is linux-only currently, but
> there's not really any technical reason why it can't work on BSD) and
> there are already callbacks to change the MTU and MAC addresses which
> could also be done via netlink. IMHO having the kernel have an
> accurate view of the link state is more important than the ability to
> change the MAC address of the interface...
The device model on BSD is significantly different than Linux.
Doing KNI on BSD is going to be a full rewrite of the driver anyway;
I won't worry about sysfs, dependency.
The important part is that if KNI is ever going to be supportable
it needs to be upstream in Linux, not a bolt on out of tree driver.
Most Enterprise distributions will not support out of tree drivers
for good reasons.
next prev parent reply other threads:[~2018-08-29 22:00 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-28 22:45 [dpdk-dev] [PATCH 00/10] kni: Interface detach and link status fixes Dan Gora
2018-06-29 1:54 ` Dan Gora
2018-06-29 1:54 ` [dpdk-dev] [PATCH v2 01/10] kni: remove unused variables from struct kni_dev Dan Gora
2018-08-29 10:29 ` Ferruh Yigit
2018-06-29 1:55 ` [dpdk-dev] [PATCH v2 02/10] kni: separate releasing netdev from freeing KNI interface Dan Gora
2018-08-29 10:59 ` Ferruh Yigit
2018-09-04 0:20 ` Dan Gora
2018-09-04 0:36 ` Dan Gora
2018-10-10 17:24 ` Ferruh Yigit
2018-10-10 18:18 ` Dan Gora
2018-10-10 22:51 ` Ferruh Yigit
2018-10-10 23:38 ` Dan Gora
2018-06-29 1:55 ` [dpdk-dev] [PATCH v2 03/10] kni: don't touch struct kni_dev after freeing Dan Gora
2018-06-29 1:55 ` [dpdk-dev] [PATCH v2 04/10] kni: add rte_kni_free to KNI library Dan Gora
2018-06-29 1:55 ` [dpdk-dev] [PATCH v2 05/10] kni: don't run rte_kni_handle_request after interface release Dan Gora
2018-06-29 1:55 ` [dpdk-dev] [PATCH v2 06/10] kni: increase length of timeout for KNI responses Dan Gora
2018-06-29 1:55 ` [dpdk-dev] [PATCH v2 07/10] kni: update kni test for rte_kni_free Dan Gora
2018-06-29 1:55 ` [dpdk-dev] [PATCH v2 08/10] kni: add rte_kni_free to KNI example app Dan Gora
2018-06-29 1:55 ` [dpdk-dev] [PATCH v2 09/10] kni: add rte_kni_free to KNI vdev driver Dan Gora
2018-06-29 1:55 ` [dpdk-dev] [PATCH v2 10/10] kni: add API to set link status on kernel interface Dan Gora
2018-08-29 11:48 ` Ferruh Yigit
2018-08-29 21:10 ` Dan Gora
2018-08-29 22:01 ` Stephen Hemminger
2018-08-29 15:54 ` Stephen Hemminger
2018-08-29 21:02 ` Dan Gora
2018-08-29 22:00 ` Stephen Hemminger [this message]
2018-08-29 22:12 ` Dan Gora
2018-08-29 22:41 ` Dan Gora
2018-08-29 23:10 ` Stephen Hemminger
2018-08-30 9:49 ` Igor Ryzhov
2018-08-30 10:32 ` Igor Ryzhov
2018-08-30 21:41 ` Dan Gora
2018-08-30 22:09 ` Stephen Hemminger
2018-08-30 22:11 ` Dan Gora
2018-09-04 0:47 ` Dan Gora
2018-09-05 12:57 ` Stephen Hemminger
2018-09-11 21:45 ` Dan Gora
2018-09-11 21:52 ` Stephen Hemminger
2018-09-11 22:07 ` Dan Gora
2018-09-11 23:14 ` Stephen Hemminger
2018-09-12 4:02 ` Jason Wang
2018-09-11 23:14 ` [dpdk-dev] [PATCH 0/2] " Dan Gora
2018-09-11 23:14 ` [dpdk-dev] [PATCH 1/2] " Dan Gora
2018-09-11 23:18 ` Dan Gora
2018-07-20 11:36 ` [dpdk-dev] [PATCH 00/10] kni: Interface detach and link status fixes Ferruh Yigit
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