16 Aug
2012
16 Aug
'12
6:47 p.m.
On Aug 16, 2012, at 1:22 AM, Patrick McHardy wrote:
On Wed, 15 Aug 2012, Frédéric LECAILLE wrote:
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
then I run the dectmon tool..
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? As far as I understand the code, in this case,
the driver never locks, this would be the reason why dectmon never displays any message…
Correct, we need a full set of system information messages for locking.
The driver never logs any DBC message. This was
the case before patching for US DECT. It seems there are EU DECT stations where I am
testing this driver.
[ 1112.263021] DBC slot 4 carrier 8: quality control: confirm quality
[ 1112.267631] DBC slot 4 carrier 8: RSSI: selection: 60 now: 64
[ 1112.272821] DBC slot 4 carrier 8: quality control: wait
[ 1112.272884] TX 17.00.04: FT T-MUX: N-channel
... these are messages from FP mode. In PP mode you won't see them.