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From: Johannes Berg <>
To: Alexander Wetzel <>,
Subject: Re: [PATCH] iwlwifi: Extended Key ID support for mvm and dvm
Date: Mon, 19 Aug 2019 22:09:14 +0200
Message-ID: <> (raw)
In-Reply-To: <> (sfid-20190819_220332_573678_41D0461A)

On Mon, 2019-08-19 at 22:03 +0200, Johannes Berg wrote:
> > While less desirable we still could get that working: The mvm driver 
> > would have to detect the key borders and then tell the firmware to 
> > switch over to the other key. But we would have to make sure to not 
> > re-enable A-MPDU aggregation till the card really has switched.

> So probably you're right, and we'd have to disable A-MPDUs until we have
> no outstanding old-key-retransmits, but that seems manageable.

Actually, we probably have to even delay the key switch until there are
no more frames to retransmit, because the hardware is involved to some
extent and it won't know about two keys or something... Not really sure
how it all works though, off the top of my head.


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Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-19 18:05 Alexander Wetzel
2019-08-19 18:51 ` Johannes Berg
2019-08-19 19:57   ` Alexander Wetzel
2019-08-19 20:03     ` Johannes Berg
2019-08-19 20:09       ` Johannes Berg [this message]
2019-08-19 20:50         ` Alexander Wetzel
2019-08-19 20:42       ` Alexander Wetzel
2019-09-06 20:41 ` Alexander Wetzel

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