2013-03-04 20:44:17

by Johannes Berg

Subject: [PATCH v3] regulatory: enable channels 52-64 and 100-144 for world roaming

From: Johannes Berg <[email protected]>

If allowed in a country, these channels typically require DFS
so mark them as such. Channel 144 is a bit special, it's coming
into use now to allow more VHT 80 channels, but world roaming
with passive scanning is acceptable anyway. It seems fairly
unlikely that it'll be used as the control channel for a VHT
AP, but it needs to be present to allow a full VHT connection
to an AP that uses it as one of the secondary channels.

Also enable VHT 160 on these channels, and also for channels
36-48 to be able to use VHT 160 there.

Signed-off-by: Johannes Berg <[email protected]>
---
net/wireless/reg.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index dee9ab4..618da84 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -184,11 +184,21 @@ static const struct ieee80211_regdomain world_regdom = {
NL80211_RRF_NO_IBSS |
NL80211_RRF_NO_OFDM),
/* IEEE 802.11a, channel 36..48 */
- REG_RULE(5180-10, 5240+10, 80, 6, 20,
+ REG_RULE(5180-10, 5240+10, 160, 6, 20,
NL80211_RRF_PASSIVE_SCAN |
NL80211_RRF_NO_IBSS),

- /* NB: 5260 MHz - 5700 MHz requires DFS */
+ /* IEEE 802.11a, channel 52..64 - DFS required */
+ REG_RULE(5260-10, 5320+10, 160, 6, 20,
+ NL80211_RRF_PASSIVE_SCAN |
+ NL80211_RRF_NO_IBSS |
+ NL80211_RRF_DFS),
+
+ /* IEEE 802.11a, channel 100..144 - DFS required */
+ REG_RULE(5500-10, 5320+10, 160, 6, 20,
+ NL80211_RRF_PASSIVE_SCAN |
+ NL80211_RRF_NO_IBSS |
+ NL80211_RRF_DFS),

/* IEEE 802.11a, channel 149..165 */
REG_RULE(5745-10, 5825+10, 80, 6, 20,
--
1.8.0

2013-03-04 20:55:58

by Bing Zhao

Subject: RE: [PATCH v3] regulatory: enable channels 52-64 and 100-144 for world roaming

[...]

> + /* IEEE 802.11a, channel 100..144 - DFS required */
> + REG_RULE(5500-10, 5320+10, 160, 6, 20,

5720+10

> + NL80211_RRF_PASSIVE_SCAN |
> + NL80211_RRF_NO_IBSS |
> + NL80211_RRF_DFS),
>
> /* IEEE 802.11a, channel 149..165 */
> REG_RULE(5745-10, 5825+10, 80, 6, 20,
> --

Regards,
Bing

2013-03-04 20:59:18

by Johannes Berg

Subject: Re: [PATCH v3] regulatory: enable channels 52-64 and 100-144 for world roaming

On Mon, 2013-03-04 at 12:49 -0800, Bing Zhao wrote:
> [...]
>
> > + /* IEEE 802.11a, channel 100..144 - DFS required */
> > + REG_RULE(5500-10, 5320+10, 160, 6, 20,
>
> 5720+10

Meh, thanks. I'm just going to get some sleep and try again tomorrow.

johannes