Hi Daniel:
On 12/21/17 4:58 PM, Daniel Golle wrote:
Hi Bob,
On Thu, Dec 21, 2017 at 03:29:51PM -0600, Bob Haddleton wrote:
Does anyone have LiMe working on a Raspberry Pi
3? I can boot up
the latest
RPI-3 image and get the eth0 port connected to my WAN uplink, but
the mesh
doesn't work and the AP is not broadcasting any SSIDs. The SSIDs
all show
"//Wireless is disabled or not associated" //and the wlan0-mesh_13
interface
shows DOWN on the BMX6 Status page.
I get two errors during init:
[ 10.862080] brcmfmac: brcmf_cfg80211_add_iface: iface validation
failed:
err=-16
[ 12.117179] brcmfmac: brcmf_cfg80211_get_channel: chanspec failed
(-1)
The brcmf_cfg80211_add_iface error traces back to this code in
cfg80211_change_iface() in net/wireless/util.c:
> /* if it's part of a bridge, reject changing type to
> station/ibss */
> if ((dev->priv_flags & IFF_BRIDGE_PORT) &&
> (ntype == NL80211_IFTYPE_ADHOC ||
> ntype == NL80211_IFTYPE_STATION ||
> ntype == NL80211_IFTYPE_P2P_CLIENT))
> return -EBUSY;
which seems to imply that this can't work (bridging an AdHoc
interface). Or
maybe the AdHoc mode has to be set before the bridge is added?
We do not directly
add the Ad-Hoc (or 11s mesh) interface to the bridge
but rather run batman-adv and bmx6 on top of it in order to provide
local layer-2 routing (batman-adv) as well as a layer-3 routed backbone
(bmx6). That should work as long as the wifi chip supports running an
Ad-Hoc or 11s mesh interface along with an access point interface.
More modern fullmac hardware (like brmcfmac) is more likely to work
with 11s than Ad-Hoc because the vendors stopped putting any effort
into Ad-Hoc mode long ago... Hence the question:
Are you trying Ad-Hoc or 802.11s mesh mode?
I tried the stock RPI3 image from the
Downloads page, and I also tried
a Chef-built 11s image, and they both have the same symptoms.
I'll try using an external wifi adapter as suggested by Mark and see
if that works.
Meshing with a non well supported WiFi device can be painful, even if
the driver is able to load a 802.11s WiFi device, it might end up in a
very low performance mesh network. So before using it I'd recommend to
check on the Internet how good or bad is the support for this chip in
802.11s or Ad-Hoc modes.
Actually I'm not aware of any well supported USB WiFi dongle for
meshing, but I'm not very updated nowadays. @Daniel can talk better
about which chips are good for meshing.
Cheers.
Thanks
Bob
Cheers
Daniel
Any suggestions or pointers would be greatly
appreciated.
Thanks
Bob
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