US DECT 6.0

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Patrick McHardy kaber at trash.net
Thu Aug 16 17:23:56 UTC 2012


On Thu, 16 Aug 2012, Frédéric LECAILLE wrote:

>
> On Aug 16, 2012, at 1:22 AM, Patrick McHardy wrote:
>
>> On Wed, 15 Aug 2012, Frédéric LECAILLE wrote:
>>
>>> Hello Patrick,
>>>
>>> I had a look at the net/dect/mac_csf.c file source code. dect_bc_si_cycle_complete() often returns false with "incomplete: SSI" kernel logs:
>>>
>>> Aug 15 15:33:25 amanda kernel: [18609.133852] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:25 amanda kernel: [18609.143816] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:25 amanda kernel: [18609.153819] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:25 amanda kernel: [18609.163822] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:25 amanda kernel: [18609.173820] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:25 amanda kernel: [18609.183821] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.193820] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.203820] page: RFPI: d7ce8 bearer description: bt: 50000000 sn: 2 sp: 0 cn: 23
>>> Aug 15 15:33:26 amanda kernel: [18609.213817] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.233819] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.243822] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.253821] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.263822] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.273818] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.283820] extended fixed part capabilities: fpc: 01000 hlc: 000000
>>> Aug 15 15:33:26 amanda kernel: [18609.283826] incomplete: SSI
>>> Aug 15 15:33:26 amanda kernel: [18609.293831] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.303818] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.323822] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.333823] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.343819] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.353817] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.363819] page: RFPI: d7ce8 blind full slots: 8aa
>>> Aug 15 15:33:26 amanda kernel: [18609.373820] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.383816] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.393842] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.403823] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.413822] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.433816] identities information: e: 0 class: 0 emc: 2284 fpn: 1af9d rpn: 0
>>> Aug 15 15:33:26 amanda kernel: [18609.443818] multi-frame number: 4282678
>>> Aug 15 15:33:26 amanda kernel: [18609.443825] incomplete: SSI
>>
>> so how exactly was this test performed? I assume you used a real US-DECT FP and configured the cell to PP mode?
>
>
> Yes, this was exactly the case:
>
> dect-cluster-add --name cluster0 --emc 0x2284 --fpn 0x1af9d --mode PP
> dect-cell-add --name cell0 --cluster cluster0 --flags monitor
> dect-transceiver-bind --transceiver trx0 --cell cell0
> dect-transceiver-bind --transceiver trx1 --cell cell0
> dect-transceiver-bind --transceiver trx2 --cell cell0

Please send me the full mac layer debugging output.


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