From: Alexander Aring <aahringo@redhat.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Alexander Aring <alex.aring@gmail.com>,
Stefan Schmidt <stefan@datenfreihafen.org>,
linux-wpan - ML <linux-wpan@vger.kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Eric Dumazet <edumazet@google.com>,
Network Development <netdev@vger.kernel.org>,
David Girault <david.girault@qorvo.com>,
Romuald Despres <romuald.despres@qorvo.com>,
Frederic Blain <frederic.blain@qorvo.com>,
Nicolas Schodet <nico@ni.fr.eu.org>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: Re: [PATCH wpan-next 01/20] net: mac802154: Allow the creation of coordinator interfaces
Date: Sat, 3 Sep 2022 14:29:05 -0400 [thread overview]
Message-ID: <CAK-6q+hyKFS0kPRkG=AKV7z5E1OdGEbjPSKZ0uFEgcK_8WC=Ow@mail.gmail.com> (raw)
In-Reply-To: <CAK-6q+guC=eYQtUX=2wvhUTyNC+iNWSVuiBHC94soVUrLoBYGg@mail.gmail.com>
Hi,
On Sat, Sep 3, 2022 at 2:21 PM Alexander Aring <aahringo@redhat.com> wrote:
...
>
> Assume you always get an ack back until somebody implements this
> feature in their driver (It's already implemented so as they return
> TX_SUCCESS). We cannot do much more I think... it is not robust but
> then somebody needs to update the driver/firmware.
>
> It's more weird if the otherside does not support AACK, because ARET
> will send them 3 times (by default) the same frame. That's why we have
> the policy to not set the ackreq bit if it's not required.
>
> > What is your "less worse" choice?
> >
> > > Btw: I can imagine that hwsim "fakes" such
> > > offload behaviours.
> >
> > My current implementation actually did handle all the acks (waiting for
> > them and sending them) from the MAC. I'm currently migrating the ack
> > sending part to the hw. For the reception, that's the big question.
> >
>
> In my opinion we should never deal with ack frames on mac802154 level,
> neither on hwsim, this is an offloaded functionality. What I have in
* except of course in cases of monitors, but monitors really aren't
part of the network and they are sniffers... A monitor can indeed send
frames out, which could cause a lot of trouble in the network if you
want to. It's a playground thing to do experiments... Here we never
analyze any payload received and forward it directly to the user, it's
also a kind of kernel bypass. I know people run some user space stacks
with it (including myself) but they get problems until it gets into
e.g. ackknowledge handling.
- Alex
next prev parent reply other threads:[~2022-09-03 18:29 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-01 14:30 [PATCH wpan-next 00/20] net: ieee802154: Support scanning/beaconing Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 01/20] net: mac802154: Allow the creation of coordinator interfaces Miquel Raynal
2022-07-06 1:51 ` Alexander Aring
2022-08-19 17:11 ` Miquel Raynal
2022-08-23 12:33 ` Alexander Aring
2022-08-23 16:29 ` Miquel Raynal
2022-08-23 21:44 ` Alexander Aring
2022-08-24 7:35 ` Miquel Raynal
2022-08-24 21:43 ` Alexander Aring
2022-08-25 8:40 ` Miquel Raynal
2022-08-26 0:51 ` Alexander Aring
2022-08-26 1:35 ` Alexander Aring
2022-08-26 8:08 ` Miquel Raynal
2022-08-29 2:31 ` Alexander Aring
2022-08-29 8:05 ` Miquel Raynal
2022-08-26 7:30 ` Miquel Raynal
2022-08-24 10:20 ` Miquel Raynal
2022-08-24 12:43 ` Alexander Aring
2022-08-24 13:26 ` Miquel Raynal
2022-08-24 21:53 ` Alexander Aring
2022-08-25 1:02 ` Alexander Aring
2022-08-25 8:46 ` Miquel Raynal
2022-08-25 12:58 ` Miquel Raynal
2022-08-26 1:05 ` Alexander Aring
2022-08-26 7:54 ` Miquel Raynal
2022-08-29 2:52 ` Alexander Aring
2022-08-29 8:02 ` Miquel Raynal
2022-08-30 2:23 ` Alexander Aring
2022-08-31 15:39 ` Miquel Raynal
2022-09-01 0:09 ` Miquel Raynal
2022-09-01 13:09 ` Miquel Raynal
2022-09-02 2:38 ` Alexander Aring
2022-09-03 0:08 ` Miquel Raynal
2022-09-03 14:20 ` Alexander Aring
2022-09-03 14:31 ` Alexander Aring
2022-09-03 16:05 ` Miquel Raynal
2022-09-03 18:21 ` Alexander Aring
2022-09-03 18:29 ` Alexander Aring [this message]
2022-09-03 19:07 ` Alexander Aring
2022-09-03 19:10 ` Alexander Aring
2022-09-03 19:40 ` Alexander Aring
2022-09-05 3:16 ` Miquel Raynal
2022-09-05 22:35 ` Alexander Aring
2022-09-02 2:23 ` Alexander Aring
2022-09-02 2:39 ` Alexander Aring
2022-09-02 2:09 ` Alexander Aring
2022-07-01 14:30 ` [PATCH wpan-next 02/20] net: ieee802154: Advertize coordinators discovery Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 03/20] net: ieee802154: Handle " Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 04/20] net: ieee802154: Trace the registration of new PANs Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 05/20] net: ieee802154: Define frame types Miquel Raynal
2022-07-11 2:06 ` Alexander Aring
2022-08-19 17:13 ` Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 06/20] net: ieee802154: Add support for user scanning requests Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 07/20] net: ieee802154: Define a beacon frame header Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 08/20] net: mac802154: Prepare forcing specific symbol duration Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 09/20] net: mac802154: Introduce a global device lock Miquel Raynal
2022-07-04 1:12 ` Alexander Aring
2022-08-19 17:06 ` Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 10/20] net: mac802154: Handle passive scanning Miquel Raynal
2022-07-15 3:33 ` Alexander Aring
2022-07-15 3:42 ` Alexander Aring
2022-08-19 17:22 ` Miquel Raynal
2022-08-01 23:42 ` Alexander Aring
2022-08-01 23:54 ` Alexander Aring
2022-07-01 14:30 ` [PATCH wpan-next 11/20] net: ieee802154: Add support for user beaconing requests Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 12/20] net: mac802154: Handle basic beaconing Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 13/20] net: ieee802154: Add support for user active scan requests Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 14/20] net: mac802154: Handle active scanning Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 15/20] net: ieee802154: Add support for allowing to answer BEACON_REQ Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 16/20] net: mac802154: Handle received BEACON_REQ Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 17/20] net: ieee802154: Handle limited devices with only datagram support Miquel Raynal
2022-07-15 3:16 ` Alexander Aring
2022-08-19 17:13 ` Miquel Raynal
2022-08-23 12:43 ` Alexander Aring
2022-07-01 14:30 ` [PATCH wpan-next 18/20] ieee802154: ca8210: Flag the driver as being limited Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 19/20] ieee802154: hwsim: Do not check the rtnl Miquel Raynal
2022-07-06 1:23 ` Alexander Aring
2022-08-01 23:58 ` Alexander Aring
2022-08-19 17:09 ` Miquel Raynal
2022-08-25 22:41 ` Miquel Raynal
2022-07-01 14:30 ` [PATCH wpan-next 20/20] ieee802154: hwsim: Allow devices to be coordinators Miquel Raynal
2022-07-11 2:01 ` Alexander Aring
2022-08-19 17:12 ` Miquel Raynal
2022-07-04 1:17 ` [PATCH wpan-next 00/20] net: ieee802154: Support scanning/beaconing Alexander Aring
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