Get asic PCI ID from CHASSIS_STATE_DB and update asic_id in CONFIG_DB #7649
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Signed-off-by: ngocdo <ngocdo@arista.com>
arlakshm
reviewed
Nov 15, 2021
| @@ -24,4 +24,21 @@ if [ "$VLAN" != "" ]; then | |||
| cp /usr/share/sonic/templates/ndppd.conf /etc/supervisor/conf.d/ | |||
| fi | |||
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| USE_PCI_ID_IN_CHASSIS_STATE_DB=/usr/share/sonic/platform/use_pci_id_chassis | |||
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The asic_id in the DEVICE_METADATA is updated here on load_minigraph
https://github.com/Azure/sonic-buildimage/blob/07de6a39c083b2cbce19cfddffd32df4cb95f923/src/sonic-config-engine/sonic-cfggen#L389-L395
Can we add the USE_PCI_ID_IN_CHASSIS_STATE_DB check here
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Are you suggesting that we move all the logic from this PR in sonic-cfggen? I think this would basically block config-setup until chassisd publishes the PCI address of all ASICs to CHASSIS_STATE_DB.
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Asic PCI ID (PCI address) is collected by
chassisd(insidepmon- sonic-net/sonic-platform-daemons#175) and saved inCHASSIS_STATE_DB(in redis_chassis).CHASSIS_STATE_DBis accessible byswsscontainers.At
docker-init.sh(script is called afterswsscontainer is created and before anything that could run inswsslike orchagent...), we wait until asic PCI ID of the corresponding asic is populated by chassisd. We then updateasic_idinCONFIG_DBof asic's database.A system supporting dynamic asic PCI ID identification requires to have a file (empty)
use_pci_id_chassisin itsplatformdir.When
orchagentruns, it has correct asic PCI ID in its CONFIG_DB.Together with this PR:
sonic-net/sonic-platform-daemons#175
sonic-net/sonic-platform-common#185
Signed-off-by: ngocdo ngocdo@arista.com