linux-kernel - Re: [PATCH] mac80211_hwsim: set the maximum EIRP output power for 5GHz

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Message-ID: <7d43bbc0dfeb040d3e0468155858c4cbe50c0de2.camel@sipsolutions.net>
Date:   Fri, 22 Nov 2019 14:02:37 +0100
From:   Johannes Berg <johannes@...solutions.net>
To:     Ramon Fontes <ramonreisfontes@...il.com>
Cc:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-wireless <linux-wireless@...r.kernel.org>,
        kvalo@...eaurora.org, davem@...emloft.net
Subject: Re: [PATCH] mac80211_hwsim: set the maximum EIRP output power for
 5GHz

On Fri, 2019-11-22 at 09:52 -0300, Ramon Fontes wrote:
> > How is hwsim related to ETSI? What does it matter?
> 
> It's well known that the frequency bands 2,4 GHz and 5 GHz are mainly
> used by Radio LANs and in many cases, the deployed technology is based
> on the IEEE 802.11 standards family. However, other technologies such
> as LTE-LAA are deployed in those frequency bands as well. That said,
> considering that hwsim is an excellent module that can be used in
> different network simulation scenarios; that it is not only used in
> North America; and also considering that some regulatory power limits
> are taken from the ETSI standards, why not set a maximum value
> supported by a renowned Institute? Without this new value, regdomain
> will not work as expected for some countries.

Right, so the commit log should say that it should be incremented to
allow regdb to work, rather than worry about ETSI specifics?

Or maybe this limit should just be removed entirely?

johannes