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Frédéric LECAILLE frednews78 at free.frI will give you hex dumps of the concerned structures asap if you want… when I will have an access to the machine again… 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? > >> 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.