Hi All,
Need one quick help here. Can you people suggest me the Wifi
chipsets which runs Mesh code with following
1) SDIO / SPI BUS
2) Having 802.11n standard.
If anybody has tried Mesh using above combination(SDIO/11n), please
suggest the chipset. Its little urgent, appreciate ur quick response in
this regard.
I tried to search, but could not able to get the stable info.
Regards,
Rudresh
On 12 January 2015 at 14:22, Rudresh NB <[email protected]> wrote:
> Thanks Bob for your support. The following lines from
> https://github.com/cozybit/open80211s/wiki/HOWTO made to think of H/W
> independent.
>
> open80211s <http://open80211s.org/>, is an open-source implementation of
> the ratified IEEE 802.11s wireless mesh standard. The goal for the
> open80211s project is to run on any commodity hardware supported by the
> Linux kernel. More specifically, open80211s was born to fulfill the
> following goals:
>
> - To create the first open implementation of 802.11s
> - To let the world use, understand, and contribute to 802.11s and
> open80211s
> - To consolidate the numerous non-interoperable mesh protocols into
> one that is based on a standard specification
>
> Cozybit has used open80211s on multiple devices, ranging from personal
> laptops, embedded linux hardware to Android based devices.
>
>
> I Will check with TI for the same.
>
>
> Regards,
>
> Rudresh
>
>
>
> On 11 January 2015 at 20:03, Bob Copeland <[email protected]> wrote:
>
>> On Sat, Jan 10, 2015 at 09:16:55PM +0530, Rudresh NB via Devel wrote:
>> > Hi Marco.
>> > Thanks for the answer. I agree that listed #3 patch is
>> for
>> > ath9k specific. For wl1271 I need to see the datasheet and make
>> > corresponding change in the driver for powersave. But for basic mesh
>> > support you say that some patch is required? with the default kernel
>> that
>> > support Mesh is not enough?
>>
>> Hi Rudresh,
>>
>> Mobile chipsets like TI wl12xx typically implement some of the MAC in
>> firmware for powersave reasons (increasingly, this is true of desktop
>> chipsets as well). Thus, it's not a forgone conclusion that mesh will
>> work with some specific mac80211 device even though 11s is implemented
>> in the MAC.
>>
>> A mac80211 driver needs to do at least the following:
>>
>> - include mesh IEs in beacons
>> - turn off bssid filtering (FIF_OTHER_BSS)
>> - somehow report TX status or link quality back to the kernel
>> - report neighbor beacons back to the kernel
>> - for encrypted mesh: handle a large number of keys
>> (at least 2 per STA plus one more)
>> - for synchronization: adjust TSF, put timestamps on RXed beacons
>> - for power saving: update TIM elements on every beacon, and have
>> hardware timers to wake up for neighbor beacons
>> - for Mesh AP (on one device): support simultaneous AP and Mesh vifs
>>
>> Some devices may not support some or all of the above due to firmware
>> limitations.
>>
>> Today, none of the TI chips support mesh upstream as far as I can tell.
>> I believe Thomas Pedersen worked on it once upon a time but I do not
>> know the outcome of that attempt.
>>
>> --
>> Bob Copeland %% http://bobcopeland.com/
>>
>
>
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