From: Johannes Berg <johannes@sipsolutions.net>
To: Ben Greear <greearb@candelatech.com>
Cc: Felix Fietkau <nbd@openwrt.org>,
"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
netdev <netdev@vger.kernel.org>
Subject: Re: Another try at getting pktgen to work with wifi.
Date: Fri, 31 May 2013 21:14:15 +0200 [thread overview]
Message-ID: <1370027655.14117.17.camel@jlt4.sipsolutions.net> (raw)
In-Reply-To: <51A8F141.5050804@candelatech.com>
On Fri, 2013-05-31 at 11:51 -0700, Ben Greear wrote:
> > What I'm saying though is that I don't see where skb->priority is even
> > _used_ in the wifi stack. I can see it getting set, but not used.
>
> ieee80211_downgrade_queue
> wme_downgrade_ac // sort of
> ieee80211_select_queue_80211 // sort of...seems twiddling skb->priority is more of a by-product here.
>
> cfg80211_classify8021d
None of this actually matters, it's all within the select_queue() call
so doesn't need to store it in the skb.
I found it though -- the only thing that ever looks at it is
ieee80211_set_qos_hdr() to set the QoS header TID, and presumably that's
what ath9k complains about (hwsim is happy to just push packets.)
johannes
next prev parent reply other threads:[~2013-05-31 19:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-30 18:45 Another try at getting pktgen to work with wifi Ben Greear
2013-05-30 20:02 ` Felix Fietkau
2013-05-30 20:45 ` Ben Greear
2013-05-31 7:56 ` Felix Fietkau
2013-05-31 17:21 ` Ben Greear
2013-05-31 17:37 ` Johannes Berg
2013-05-31 18:00 ` Ben Greear
2013-05-31 18:41 ` Johannes Berg
2013-05-31 18:51 ` Ben Greear
2013-05-31 19:14 ` Johannes Berg [this message]
2013-05-31 19:09 ` Arend van Spriel
2013-05-31 20:51 ` Bob Copeland
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