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[fix] Use the same storm detection condition for queue occupancy non-zero case as the zero case #1111

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Merged
yxieca merged 3 commits into from
Oct 31, 2019
Merged

[fix] Use the same storm detection condition for queue occupancy non-zero case as the zero case #1111

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c9939c4
Check if pfc is at on state over the polling period for queue occupan…
wendani Oct 29, 2019
0df1292
Use the same condition for queue occupany zero and non-zero cases
wendani Oct 30, 2019
b516998
Remove single line comments that no longer valid
yxieca Oct 31, 2019
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7 changes: 2 additions & 5 deletions orchagent/pfc_detect_broadcom.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -67,11 +67,8 @@ for i = n, 1, -1 do
pfc_on2off_last = tonumber(pfc_on2off_last)

-- Check actual condition of queue being in PFC storm
if (occupancy_bytes > 0 and packets - packets_last == 0 and pfc_rx_packets - pfc_rx_packets_last > 0) or
-- DEBUG CODE START. Uncomment to enable
(debug_storm == "enabled") or
-- DEBUG CODE END.
(occupancy_bytes == 0 and pfc_rx_packets - pfc_rx_packets_last > 0 and pfc_on2off - pfc_on2off_last == 0 and queue_pause_status_last == 'true' and queue_pause_status == 'true') then
if (pfc_rx_packets - pfc_rx_packets_last > 0 and pfc_on2off - pfc_on2off_last == 0 and queue_pause_status_last == 'true' and queue_pause_status == 'true') or
(debug_storm == "enabled") then
if time_left <= poll_time then
redis.call('PUBLISH', 'PFC_WD_ACTION', '["' .. KEYS[i] .. '","storm"]')
is_deadlock = true
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