Dectmon only recording data partially?

Erik Tews e_tews at cdc.informatik.tu-darmstadt.de
Mon Nov 15 15:14:20 UTC 2010


Am Montag, den 15.11.2010, 15:44 +0100 schrieb Patrick McHardy:
> You could try to add to dect_mac_irc_tick, the
> DECT_TRANSCEIVER_UNLOCKED
> case, around the carrier increment:
> 
> if (net_random() > 0x7fffffff) {
> ...
> }
> 
> to have it stay on the same carrier half the time. 

OK, that seems to improve the scanning results:

diff --git a/net/dect/mac_csf.c b/net/dect/mac_csf.c
index a77f19f..9ec7a75 100644
--- a/net/dect/mac_csf.c
+++ b/net/dect/mac_csf.c
@@ -3656,9 +3656,11 @@ void dect_mac_irc_tick(struct dect_transceiver *trx)
 
        switch (trx->state) {
        case DECT_TRANSCEIVER_UNLOCKED:
-               /* maintain scan until clock is running */
-               irc->rx_scn = dect_next_carrier(0x3ff, irc->rx_scn);
-               dect_set_carrier(trx, DECT_SCAN_SLOT, irc->rx_scn);
+               if (net_random() > 0x7fffffff) {
+                       /* maintain scan until clock is running */
+                       irc->rx_scn = dect_next_carrier(0x3ff, irc->rx_scn);
+                       dect_set_carrier(trx, DECT_SCAN_SLOT, irc->rx_scn);
+               }
                break;
        case DECT_TRANSCEIVER_LOCK_PENDING:
                irc->si.ssi.pscn = dect_next_carrier(0x3ff, irc->si.ssi.pscn);


However, I don't get a lock just in PP mode, if I don't use the monitor
flag:

[607158.216667] com_on_air_pci 0000:02:04.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[607158.216679] com_on_air_pci 0000:02:04.0: setting latency timer to 64
[607158.241899] com_on_air_pci 0000:02:04.0: Loading firmware ...
[607158.788708] identities information: e: 0 class: 0 emc: 11d3 fpn: 0f371 rpn: 0
[607192.974449] identities information: e: 0 class: 0 emc: 11d3 fpn: 0f371 rpn: 0
[607219.881092] identities information: e: 0 class: 0 emc: 11d3 fpn: 0f371 rpn: 0
[607232.329542] identities information: e: 0 class: 0 emc: 11d3 fpn: 0f371 rpn: 0
[607263.615645] identities information: e: 0 class: 0 emc: 11d3 fpn: 0f371 rpn: 0
[607283.483168] identities information: e: 0 class: 0 emc: 11d3 fpn: 0f371 rpn: 0
[607287.032726] identities information: e: 0 class: 0 emc: 11d3 fpn: 0f371 rpn: 0
[607298.211337] identities information: e: 0 class: 0 emc: 11d3 fpn: 0f371 rpn: 0
[607307.220212] identities information: e: 0 class: 0 emc: 11d3 fpn: 0f371 rpn: 0
[607370.522330] identities information: e: 0 class: 0 emc: 11d3 fpn: 0f371 rpn: 0
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