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[action] [PR:9262] [drop_packets]: Fix to support testbed with different hwsku with different asic count #9669

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merged 1 commit into from
Aug 28, 2023

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mssonicbld
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Description of PR

Summary:
Fixes # (issue)

Type of change

  • Bug fix
  • Testbed and Framework(new/improvement)
  • Test case(new/improvement)

Back port request

  • 201911
  • 202012
  • 202205

Approach

What is the motivation for this PR?

Seeing failures on testbed with different hwsku's with different asic count.
In Chassis testbed, with different LC hwSKU , if one of the selected LCs have 3 asics and another LC has 2 asics, we see the below failure:

drop_packets/test_drop_counters.py::test_src_ip_is_loopback_addr[rif_members] 
-------------------------------- live log call ---------------------------------
02:08:08 utilities.wait_until L0118 ERROR | Exception caught while checking <lambda>:Traceback (most recent call last):
 File "/./tests/common/utilities.py", line 112, in wait_until
 check_result = condition(*args, **kwargs)
 File "/./tests/common/helpers/drop_counters/drop_counters.py", line 101, in <lambda>
 check_drops_on_dut = lambda: packets_count in get_drops_across_all_duthosts()
 File "/./tests/common/helpers/drop_counters/drop_counters.py", line 94, in get_drops_across_all_duthosts
 pkt_drops = get_pkt_drops(duthost, get_cnt_cli_cmd, asic_index)
 File "/./tests/common/helpers/drop_counters/drop_counters.py", line 34, in get_pkt_drops
 namespace = duthost.get_namespace_from_asic_id(asic_index)
 File "/./tests/common/devices/multi_asic.py", line 230, in get_namespace_from_asic_id
 raise ValueError("Invalid asic_id '{}' passed as input".format(asic_id))
ValueError: Invalid asic_id '2' passed as input
, error:Invalid asic_id '2' passed as input

Issue is because the get_pkt_drop function takes the asic_index of the selected HwSKU or selected LC.
If the random asic_index selected is 2, and if get_pkt_drops() is called with asic_index 2 for a different LC in the testbed with 2 asics, the test fails as asic_index 2 is not present in the different LC.

How did you do it?

Fixed get_pkt_drops to go through all asic namespaces and get drop count.
This way get_pkt_drops will return packet drops for all interfaces from all namespaces.

How did you verify/test it?

Verified on packet chassis, voq chassis and single asic DUT testbed.

Any platform specific information?

Supported testbed topology if it's a new test case?

Documentation

What is the motivation for this PR?
Seeing failures on testbed with different hwsku's with different asic count.
In Chassis testbed, with different LC hwSKU , if one of the selected LCs have 3 asics and another LC has 2 asics, we see the below failure:

drop_packets/test_drop_counters.py::test_src_ip_is_loopback_addr[rif_members] 
-------------------------------- live log call ---------------------------------
02:08:08 utilities.wait_until                     L0118 ERROR  | Exception caught while checking <lambda>:Traceback (most recent call last):
  File "/./tests/common/utilities.py", line 112, in wait_until
    check_result = condition(*args, **kwargs)
  File "/./tests/common/helpers/drop_counters/drop_counters.py", line 101, in <lambda>
    check_drops_on_dut = lambda: packets_count in get_drops_across_all_duthosts()
  File "/./tests/common/helpers/drop_counters/drop_counters.py", line 94, in get_drops_across_all_duthosts
    pkt_drops = get_pkt_drops(duthost, get_cnt_cli_cmd, asic_index)
  File "/./tests/common/helpers/drop_counters/drop_counters.py", line 34, in get_pkt_drops
    namespace = duthost.get_namespace_from_asic_id(asic_index)
  File "/./tests/common/devices/multi_asic.py", line 230, in get_namespace_from_asic_id
    raise ValueError("Invalid asic_id '{}' passed as input".format(asic_id))
ValueError: Invalid asic_id '2' passed as input
, error:Invalid asic_id '2' passed as input
Issue is because the get_pkt_drop function takes the asic_index of the selected HwSKU or selected LC.
If the random asic_index selected is 2, and if get_pkt_drops() is called with asic_index 2 for a different LC in the testbed with 2 asics, the test fails as asic_index 2 is not present in the different LC.

How did you do it?
Fixed get_pkt_drops to go through all asic namespaces and get drop count.
This way get_pkt_drops will return packet drops for all interfaces from all namespaces.

How did you verify/test it?
Verified on packet chassis, voq chassis and single asic DUT testbed.
@mssonicbld
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Original PR: #9262

@mssonicbld mssonicbld merged commit 5ed5418 into sonic-net:202205 Aug 28, 2023
9 checks passed
@mssonicbld mssonicbld deleted the cherry/202205/9262 branch February 4, 2024 08:32
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2 participants