Common functions for Multi ASIC CLIs #4973

arlakshm · 2020-07-15T01:21:34Z

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan arlakshm@microsoft.com

- Why I did it
The PR implements few common functions needed for CLI and other modules.
- How I did it

The following common APIs are added for multi ASIC

an API to check if a given port is a internal or external port
an API to check if a given port-channel is internal or external
an API to check if a bgp-session is internal or external
an API to connect to the config and other dbs in the a given namespace
added common APIs to the sonic_py_common library.
update the sample port-config.ini with role column and add corresponding test to verify the ports configuration is - generated properly.

- Description for the changelog

- A picture of a cute animal (not mandatory but encouraged)

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

smaheshm · 2020-07-16T16:25:51Z

src/sonic-config-engine/sonic_device_util.py

+    if namespace is None:
+        ns_list  = get_namespaces()
+    else:
+        ns_list = [namespace]


check of valid namepsace it not already checked. Raise exception if invalid namespace.

IMO, the namespace validation should be done by the caller ( CLI handler)

smaheshm · 2020-07-16T16:41:31Z

src/sonic-config-engine/sonic_device_util.py

+        members = port_channels[port_channel]['members']
+        for member in members:
+            if is_port_internal(member):
+                return True


This logic will be intensive for 'external' ports. It'll call 'get_port_config_from_all_asics()' for all member ports. Any reason why you are checking all members for 'external' role and only one member for 'internal' role.

will this work:

return is_port_internal(members[0])

Fixed in the latest commit

smaheshm · 2020-07-16T16:44:19Z

src/sonic-config-engine/sonic_device_util.py

+    if namespace is None:
+        ns_list  = get_namespaces()
+    else:
+        ns_list = [namespace]


validate namespace.

IMO, the namespace validation should be done by the caller ( CLI handler)

smaheshm · 2020-07-16T16:46:22Z

src/sonic-config-engine/sonic_device_util.py

+        bgp_neigh_name = bgp_sessions[bgp_neigh_ip]['name']
+        neighbor_metadata = config_db.get_table(NEIGH_DEVICE_METADATA_CFG_DB_TABLE)
+        if neighbor_metadata[bgp_neigh_name]['type'].lower() == 'asic':
+            return True


else:
return False?

Fixed in latest commit

smaheshm

Minor comments.

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

arlakshm · 2020-07-20T14:38:15Z

retest vsimage please

judyjoseph · 2020-07-20T17:34:52Z

src/sonic-config-engine/tests/multi_npu_data/sample_port_config-0.ini

+# name          lanes          alias           asic_port_name    role 
+Ethernet0     33,34,35,36      Ethernet1/1      Eth0-ASIC0         E


I talked to Joe, as per him it would be good to add the "index" field also in port_config.ini files. There could be API's which use that.

What is the usage or significance of index here? There is a way an index is computed based on interface name, which is used in SNMP mainly.
https://github.com/Azure/sonic-py-swsssdk/blob/master/src/swsssdk/port_util.py#L26
Is the interface index compute in port_util same as index here?

@judyjoseph, @SuvarnaMeenakshi.
I have added port_index in the port_config.ini in the latest commit. The port index is a running number, there is no significance to it.

Thanks ! To mention the significance of "index" .. there are some places where the code check for presence of "index" in the port_config.ini eg: https://github.com/Azure/sonic-platform-common/blob/be1cc2475e65b764f7aab44785a779cc3d011ee9/sonic_platform_base/sonic_sfp/sfputilbase.py#L458

So it would be safer to have the index field.... as there are logic below which checks for len(line.split()) >= 4: etc. This will change for us as we add more columns now.

Also we would need to have separate index numbering for front-panel and back panel interfaces ...

Ethernet0 33,34,35,36 Ethernet1/1 0 Eth0-ASIC0 E
Ethernet4 29,30,31,32 Ethernet1/2 1 Eth1-ASIC0 E
...
Ethernet-BP0 13,14,15,16 Ethernet-BP0 0 Eth4-ASIC0 I
Ethernet-BP4 17,18,19,20 Ethernet-BP4 1 Eth5-ASIC0 I
....

Also we would need to have separate index numbering for front-panel and back panel interfaces ...

@judyjoseph, can you elaborate why we need separate index numbering for front-panel and back panel interface ?

In the platform code ( could be other places as well ) we are making a logical list of all the interfaces, and we are looking for only front panel interfaces which is significant. Currently when there is no "index" field in port_config.ini, the way it calculates the index is from the name "Ethernet0"(here it is 0/4 ==> 0), "Ethernet4" (here it is 4/4 ==> 1) etc.

So It would be ok to start the index from 0 separately per interface type and it will follow the interface naming/numbering convention also. Do you think there could be an issue ?

@judyjoseph, Changed the port_config.ini in the latest commit

jleveque · 2020-07-22T20:19:35Z

@arlakshm: Would it be possible to wait until #5003 merges, then add this functionality to that package instead?

arlakshm · 2020-07-22T20:49:46Z

@arlakshm: Would it be possible to wait until #5003 merges, then add this functionality to that package instead?

@jleveque : Sure, I will add them to sonic-py-common

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

arlakshm · 2020-07-30T19:14:23Z

@arlakshm: Would it be possible to wait until #5003 merges, then add this functionality to that package instead?

@jleveque : Sure, I will add them to sonic-py-common

@jleveque: I moved the common functions to sonic-py-common. Please review and provide feedback

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

abdosi · 2020-08-07T18:41:32Z

src/sonic-py-common/sonic_py_common/multi_asic.py

+        neighbor_metadata = config_db.get_table(
+            NEIGH_DEVICE_METADATA_CFG_DB_TABLE)
+
+        if neighbor_metadata[bgp_neigh_name]['type'].lower() == 'asic':


do we need to check if neighbor_metadata exist ?

added a check in latest commit

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

arlakshm · 2020-08-11T17:44:17Z

@abdosi, @lguohan , @jleveque . All review comments are addressed. Please approve if there are no other comments

src/sonic-config-engine/tests/test_multinpu_cfggen.py

src/sonic-py-common/sonic_py_common/multi_asic.py

signoff

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

src/sonic-py-common/sonic_py_common/multi_asic.py

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

src/sonic-py-common/sonic_py_common/multi_asic.py

signoff

arlakshm · 2020-08-14T04:12:01Z

retest vsimage please

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan arlakshm@microsoft.com The following common APIs are added for multi ASIC - an API to check if a given port is a internal or external port - an API to check if a given port-channel is internal or external - an API to check if a bgp-session is internal or external - an API to connect to the config and other dbs in the a given namespace - added common APIs to the sonic_py_common library. - update the sample port-config.ini with role column and add corresponding test to verify the ports configuration is - generated properly.

Changes for identifing the cli object's role

0c7d22f

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

arlakshm requested review from SuvarnaMeenakshi, abdosi, lguohan and judyjoseph July 15, 2020 01:21

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Fix lgtm warning

0620982

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

smaheshm reviewed Jul 16, 2020

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arlakshm added 2 commits July 16, 2020 14:46

address review comment

00e34d0

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

Fixed review comments

b133dc1

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

judyjoseph reviewed Jul 20, 2020

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Add index to port_config and minor fixes

3c671c1

arlakshm mentioned this pull request Jul 20, 2020

Common functions for show CLI support on multi ASIC sonic-net/sonic-utilities#999

Merged

This was referenced Jul 24, 2020

show interface portchannel support for Multi ASIC sonic-net/sonic-utilities#1005

Merged

support show interface commands for multi ASIC platforms sonic-net/sonic-utilities#1006

Merged

arlakshm added 2 commits July 27, 2020 11:17

Merge remote-tracking branch 'arlakshm/master' into masic_port_role

51adf86

move common functions to sonic_py_common package

4985d2d

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

arlakshm requested a review from jleveque July 30, 2020 19:14

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fix compilation issue

525b6b4

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

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arlakshm mentioned this pull request Jul 30, 2020

show interface counters for multi ASIC devices sonic-net/sonic-utilities#1013

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abdosi reviewed Aug 7, 2020

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arlakshm added 4 commits August 7, 2020 15:30

address review commit

6a3009c

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

change the port in port_config to Ext\Int

7628bbd

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

Merge remote-tracking branch 'arlakshm/master' into masic_port_role

b4837ff

revert the changes in device_info.py

cabc2f3

Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

judyjoseph previously approved these changes Aug 11, 2020

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arlakshm mentioned this pull request Aug 12, 2020

Support "show cli" for Multi Npu platforms. sonic-net/sonic-utilities#889

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address review comments

789a548

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arlakshm dismissed stale reviews from abdosi and judyjoseph via 789a548 August 12, 2020 17:25

arlakshm added 2 commits August 12, 2020 12:17

For cli get the namespace list from linux

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Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>

Merge remote-tracking branch 'arlakshm/master' into masic_port_role

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arlakshm requested review from jleveque and abdosi August 13, 2020 20:32

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fix import spacing

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address review comments

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arlakshm added Multi-ASIC Request for 201911 Branch labels Aug 14, 2020

arlakshm merged commit 6c89551 into sonic-net:master Aug 14, 2020

abdosi added the Included in 201911 Branch label Aug 19, 2020

gechiang mentioned this pull request Aug 21, 2020

Multi-ASIC support for show ip route sonic-net/sonic-utilities#1060

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gechiang mentioned this pull request Sep 2, 2020

Multi-ASIC support for show ip route sonic-net/sonic-utilities#1089

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Common functions for Multi ASIC CLIs #4973

Common functions for Multi ASIC CLIs #4973

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arlakshm commented Aug 14, 2020

		# name lanes alias asic_port_name role
		Ethernet0 33,34,35,36 Ethernet1/1 Eth0-ASIC0 E

Common functions for Multi ASIC CLIs #4973

Common functions for Multi ASIC CLIs #4973

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