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From: Johannes Berg <johannes@sipsolutions.net>
To: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>,
	ath11k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Subject: Re: [PATCH v2 1/9] cfg80211: Add new channel flag to identify 6GHz PSC channel
Date: Fri, 22 May 2020 22:38:54 +0200
Message-ID: <fa1879bf357c091277972b2a370799fdf6192ae3.camel@sipsolutions.net> (raw)
In-Reply-To: <20200522072431.27601-2-pradeepc@codeaurora.org>

On Fri, 2020-05-22 at 00:24 -0700, Pradeep Kumar Chitrapu wrote:
> 6GHz channels are divided into preferred scanning channels(PSC)
> and non-PSC channels. One in every four 20MHz channels is a PSC.
> Spec mandates to use only PSC channels as primary channels for
> setting up BSS on 6GHz only AP.
> 
> The set of 20 MHz channels in the 6 GHz band, with channel center
> frequency, ch_a = Channel starting frequency – 55 + 80 × n (MHz)
> are referred to as preferred scanning channels (PSCs) where,
> n = 1, …, 15 as per IEEE P802.11ax/D6.0.
> 
> This flag also will be used when making scanning decision on
> 6GHz channels.

Is there much value in exposing this as a *flag*?

We have a similar patch, but it just adds the function and everyone who
cares can call it. Do we really need to precalculate that?

johannes



  reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-22  7:24 [PATCH v2 0/9] add 6GHz radio support in ath11k driver Pradeep Kumar Chitrapu
2020-05-22  7:24 ` [PATCH v2 1/9] cfg80211: Add new channel flag to identify 6GHz PSC channel Pradeep Kumar Chitrapu
2020-05-22 20:38   ` Johannes Berg [this message]
2020-05-22 23:46     ` Pradeep Kumar Chitrapu
2020-05-25  8:57       ` Johannes Berg
2020-05-22  7:24 ` [PATCH v2 2/9] ath11k: add 6G frequency list supported by driver Pradeep Kumar Chitrapu
2020-05-22  7:24 ` [PATCH v2 3/9] ath11k: add support for 6GHz radio in driver Pradeep Kumar Chitrapu
2020-05-22  7:24 ` [PATCH v2 4/9] ath11k: Use freq instead of channel number in rx path Pradeep Kumar Chitrapu
2020-05-22  7:24 ` [PATCH v2 5/9] ath11k: extend peer_assoc_cmd for 6GHz band Pradeep Kumar Chitrapu
2020-05-22  7:24 ` [PATCH v2 6/9] ath11k: set psc channel flag when sending channel list to firmware Pradeep Kumar Chitrapu
2020-05-22  7:24 ` [PATCH v2 7/9] ath11k: Add 6G scan dwell time parameter in scan request command Pradeep Kumar Chitrapu
2020-05-22  7:24 ` [PATCH v2 8/9] ath11k: Send multiple scan_chan_list messages if required Pradeep Kumar Chitrapu
2020-05-22  7:24 ` [PATCH v2 9/9] ath11k: Add support for 6g scan hint Pradeep Kumar Chitrapu

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