From: Johannes Berg <johannes@sipsolutions.net>
To: Luca Coelho <luca@coelho.fi>
Cc: michal.kazior@tieto.com, linux-wireless@vger.kernel.org
Subject: Re: [PATCH 1/2] mac80211: add a single-transaction driver op to switch contexts
Date: Fri, 23 May 2014 15:24:21 +0200 [thread overview]
Message-ID: <1400851461.4358.40.camel@jlt4.sipsolutions.net> (raw)
In-Reply-To: <1400844793-18069-1-git-send-email-luca@coelho.fi>
On Fri, 2014-05-23 at 14:33 +0300, Luca Coelho wrote:
> From: Luciano Coelho <luciano.coelho@intel.com>
>
> In some cases, when the driver is already using all the channel
> contexts it can handle at once, we have to do an in-place switch
> (ie. we cannot afford using an extra context temporarily for the
> transaction). But some drivers may not support switching the channel
> context assigned to a vif on the fly (ie. without unassigning and
> assigning it) while others may only work if the context is changed on
> the fly, without unassigning it first.
>
> To allow these different scenarios, add a new driver operation that
> let's the driver decide how to handle an in-place switch.
Ok, I've applied this. I extended the warning for the new context (to
check that it exists in the reassign case) and changed the tracing
structs slightly (fixing the ifname length and marking the structs
packed to avoid alignment issues)
johannes
next prev parent reply other threads:[~2014-05-23 13:24 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-22 14:07 [PATCH v6 0/6] cfg/mac80211: implement multi-vif csa Michal Kazior
2014-05-22 14:07 ` [PATCH v6 1/6] mac80211: introduce switch_vif_chanctx op Michal Kazior
2014-05-22 14:45 ` Johannes Berg
2014-05-23 2:38 ` [PATCH] mac80211: add a single-transaction driver op to switch contexts Luca Coelho
2014-05-23 2:49 ` Luca Coelho
2014-05-23 7:51 ` Michal Kazior
2014-05-23 8:01 ` Michal Kazior
2014-05-23 8:58 ` Johannes Berg
2014-05-23 9:14 ` Luca Coelho
2014-05-23 9:30 ` Johannes Berg
2014-05-23 9:52 ` Johannes Berg
2014-05-23 11:33 ` [PATCH 1/2] " Luca Coelho
2014-05-23 11:33 ` [PATCH 2/2] mac80211: use switch_vif_chanctx to change a running chanctx Luca Coelho
2014-05-23 11:35 ` Luca Coelho
2014-05-23 13:28 ` Johannes Berg
2014-05-23 13:31 ` Luca Coelho
2014-05-23 13:24 ` Johannes Berg [this message]
2014-05-23 13:30 ` [PATCH 1/2] mac80211: add a single-transaction driver op to switch contexts Luca Coelho
2014-05-23 9:16 ` [PATCH] " Michal Kazior
2014-05-23 9:26 ` Johannes Berg
2014-05-23 6:09 ` [PATCH v6 1/6] mac80211: introduce switch_vif_chanctx op Michal Kazior
2014-05-23 8:51 ` Johannes Berg
2014-05-23 9:10 ` Michal Kazior
2014-05-23 9:31 ` Johannes Berg
2014-05-22 14:07 ` [PATCH v6 2/6] mac80211: implement multi-vif in-place reservations Michal Kazior
2014-05-22 14:51 ` Johannes Berg
2014-05-23 6:16 ` Michal Kazior
2014-05-23 12:23 ` Michal Kazior
2014-05-23 13:14 ` Johannes Berg
2014-05-22 14:07 ` [PATCH v6 3/6] mac80211: make check_combinations() aware of chanctx reservation Michal Kazior
2014-05-22 14:07 ` [PATCH v6 4/6] mac80211: use chanctx reservation for AP CSA Michal Kazior
2014-05-22 14:54 ` Johannes Berg
2014-05-23 6:49 ` Michal Kazior
2014-05-23 8:44 ` Johannes Berg
2014-05-23 8:58 ` Michal Kazior
2014-05-23 9:07 ` Johannes Berg
2014-05-23 9:35 ` Michal Kazior
2014-05-23 9:53 ` Johannes Berg
2014-05-22 14:07 ` [PATCH v6 5/6] mac80211: use chanctx reservation for STA CSA Michal Kazior
2014-05-22 14:07 ` [PATCH v6 6/6] cfg80211: remove channel_switch combination check Michal Kazior
2014-05-22 14:57 ` Johannes Berg
2014-05-23 7:04 ` Michal Kazior
2014-05-23 8:53 ` Johannes Berg
2014-05-23 9:11 ` Michal Kazior
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