Hi,
cc mailinglist because somehow it was dropped...
could be also interested for other people.
On Sat, Jul 01, 2017 at 04:43:32PM +0200, Alexander Aring wrote:
> Hi,
>
> On Fri, Jun 30, 2017 at 10:46:25AM +0530, JANARDHANACHARI KELLA wrote:
> > Hi Alex,
> >
> > I found a structure link_status in cotiki/core/net/link status.c
> >
> > /* All statistics of a given link */
> > struct link_stats {
> > uint16_t etx; /* ETX using ETX_DIVISOR as fixed point divisor */
> > int16_t rssi; /* RSSI (received signal strength) */
> > uint8_t freshness; /* Freshness of the statistics */
> > clock_time_t last_tx_time; /* Last Tx timestamp */
> > };
> >
> > are we have, any kind of structures/functions to obtain
> > etx,rssi,freshness,last_tx_time?
> >
>
> As per peer/link/neighbor information? No not yet. But such idea is on
> the List [0]. Such information makes for me sense only if you know the
> peer according to the statistics. If you don't need that, you could
> maybe readout regmap registers on at86rf2xx/mrf24j40.
>
> For my final exam I "hacked" it into the kernel [1]. What I needed was
> per link info for LQI/ACK (TX_SUCCESS)/NO_ACK.
>
> It's actually a hack because... I was not sure about several things
> (which I don't remember anymore). Thesis made me lazy and it was stupid
> to hack everything because deadline...
>
> Nevertheless, the _architecture_ idea is to handle it like "wireless
> (802.11) e.g. station dump" (I am sure 802.11 mesh functionality has
> also such stuff for per peer statistics).
>
> I would suggest you to look into wireless subsystem and maybe [1] if you
> want to add support for it. For HardMAC drivers... let us figure the
> HardMAC API out when I ever see _real_ support for HardMAC or I get such
> HardMAC transceiver (I don't own an HardMAC transceiver).
>
> - Alex
>
> [0] https://github.com/linux-wpan/wpan-tools/issues/6
> [1] https://github.com/linux-wpan/linux-wpan-next/blob/for-mcr/net/mac802154/node_info.c
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