feat(dsc): Add the 100G link down/up cycle test
bcm_100g_dsc_cycle.sh tunes once - gbsyncd paused, serdes-tx-set on sys 0..7, tx_taps per lane - then repeats: port 268 en=0, wait, en=1, wait, phydiag 268 dsc on both units, and the retimer read back with serdes-tx-get / serdes-rx-get for sys 0..7. One log per run under ~/dsc_log, split by "### TEST CYCLE n/N", ending in "### DSC_CYCLE_DONE rc=<n>" for a TTL wait to key on. Waiting for a link state polls "bcmcmd ps <port>" rather than reading "show interfaces status". "port en=" changes the SDK, and the SONiC table only follows once gbsyncd and orchagent have synced it - and this test pauses gbsyncd, so the SONiC table was the wrong thing to wait on. The state is read from the row whose first field ends in "(<port>)", and "down" is tested as "not up" so !ena counts. All output is ASCII English on purpose: the DUT serial console mangles UTF-8, and a Chinese error message came back as "ERROR: -c ? 1" - an error you cannot read is worse than none. -d echoes every command as a grey [CMD] line, CMD_DELAY paces them, and -n is a dry run that touches nothing and sleeps not at all. The cycle count may be given as a bare argument, which is what people type first. Not verified on hardware. gbsyncd is unpaused again on exit, Ctrl-C included. tools/100G_dsc_cycle.txt is the hand-typed bench version of the same commands, kept the way BER_Test.txt and TR518.txt are, so the script can be checked against what a person would actually run. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014RetWKFZFG1ZHcitQAyhwM
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Claude Opus 5
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cd /usr/sbin
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sudo docker pause gbsyncd1
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sudo docker pause gbsyncd0
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-get sys 0
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//Tuning
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-set sys 0 pre=-10 main=87 post=0
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-set sys 1 pre=-10 main=87 post=0
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-set sys 2 pre=-10 main=87 post=0
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-set sys 3 pre=-10 main=87 post=0
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-set sys 4 pre=-10 main=87 post=0
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-set sys 5 pre=-10 main=87 post=0
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-set sys 6 pre=-10 main=87 post=0
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-set sys 7 pre=-10 main=87 post=0
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bcmcmd -n 0 -c " dsh -c 'phydiag 268 tx_taps set lane=0 main=31 pre1=4 post1=13' "
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bcmcmd -n 0 -c " dsh -c 'phydiag 268 tx_taps set lane=1 main=31 pre1=4 post1=13' "
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bcmcmd -n 0 -c " dsh -c 'phydiag 268 tx_taps set lane=2 main=27 pre1=4 post1=13' "
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bcmcmd -n 0 -c " dsh -c 'phydiag 268 tx_taps set lane=3 main=29 pre1=4 post1=13' "
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bcmcmd -n 1 -c " dsh -c 'phydiag 268 tx_taps set lane=0 main=29 pre1=4 post1=13' "
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bcmcmd -n 1 -c " dsh -c 'phydiag 268 tx_taps set lane=1 main=30 pre1=4 post1=13' "
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bcmcmd -n 1 -c " dsh -c 'phydiag 268 tx_taps set lane=2 main=31 pre1=4 post1=13' "
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bcmcmd -n 1 -c " dsh -c 'phydiag 268 tx_taps set lane=3 main=30 pre1=4 post1=13' "
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以下Test Cycle 目標200次
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//Disable Port
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bcmcmd -n 0 -c "port 268 en=0"
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bcmcmd -n 1 -c "port 268 en=0"
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//Wait Link Down
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bcmcmd -n 0 -c "ps 268"
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bcmcmd -n 1 -c "ps 268"
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root@sonic:~# bcmcmd -n 0 -c "ps 268"
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ps 268
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ena/ speed/ link auto STP lrn max cut loop
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port link Lns duplex scan neg? state pause discrd ops medium frame thru FEC back
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ce0(268) !ena 4 100G FD SW No Forward Untag FA Backplane 9122 No RS528
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drivshell>
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root@sonic:~# bcmcmd -n 1 -c "ps 268"
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ps 268
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ena/ speed/ link auto STP lrn max cut loop
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port link Lns duplex scan neg? state pause discrd ops medium frame thru FEC back
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ce0(268) !ena 4 100G FD SW No Forward Untag FA Backplane 9122 No RS528
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drivshell>
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root@sonic:~#
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//Enable Port
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bcmcmd -n 0 -c "port 268 en=1"
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bcmcmd -n 1 -c "port 268 en=1"
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//Wait Link Up
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bcmcmd -n 0 -c "ps 268"
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bcmcmd -n 1 -c "ps 268"
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root@sonic:~# bcmcmd -n 0 -c "ps 268"
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ps 268
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ena/ speed/ link auto STP lrn max cut loop
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port link Lns duplex scan neg? state pause discrd ops medium frame thru FEC back
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ce0(268) up 4 100G FD SW No Forward Untag FA Backplane 9122 No RS528
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drivshell>
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root@sonic:~# bcmcmd -n 1 -c "ps 268"
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ps 268
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ena/ speed/ link auto STP lrn max cut loop
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port link Lns duplex scan neg? state pause discrd ops medium frame thru FEC back
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ce0(268) up 4 100G FD SW No Forward Untag FA Backplane 9122 No RS528
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drivshell>
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root@sonic:~#
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//Collect DSC Data
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bcmcmd -n 0 -c "dsh -c 'phydiag 268 dsc'"
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bcmcmd -n 1 -c "dsh -c 'phydiag 268 dsc'"
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//讀Retimer TX/RX
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-get sys 0
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-get sys 1
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-get sys 2
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-get sys 3
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-get sys 4
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-get sys 5
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-get sys 6
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sudo /usr/sbin/blanton_barchetta_tool --serdes-tx-get sys 7
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sudo /usr/sbin/blanton_barchetta_tool --serdes-rx-get sys 0
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sudo /usr/sbin/blanton_barchetta_tool --serdes-rx-get sys 1
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sudo /usr/sbin/blanton_barchetta_tool --serdes-rx-get sys 2
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sudo /usr/sbin/blanton_barchetta_tool --serdes-rx-get sys 3
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sudo /usr/sbin/blanton_barchetta_tool --serdes-rx-get sys 4
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sudo /usr/sbin/blanton_barchetta_tool --serdes-rx-get sys 5
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sudo /usr/sbin/blanton_barchetta_tool --serdes-rx-get sys 6
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sudo /usr/sbin/blanton_barchetta_tool --serdes-rx-get sys 7
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