issue: 4213201 Nullify all WQEBB on special WQEs #323
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XLIO does a prefetch with zeroing the next WQEBB after a doorbell. It also presets inline_hdr_sz as a legacy behavior. However, in a corner case when the producer fills the tail WQE and the consumer is still processing the head WQE, the prefetch code corrupts the head WQE. Remove the prefetch to avoid the SQ corruption. Clear each WQE before filling it. Signed-off-by: Dmytro Podgornyi <[email protected]>
Nullify all WQEBB size even if the special WQE is less then 64B. Signed-off-by: Alexander Grissik <[email protected]>
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Description
Based on PR 321.
Correct special WQEs cleanup.
What
Fix possible issues and syndroms do to incorrect WQEBB cleanup.
Why ?
Functionality.
How ?
Always nullify the whole first WQEBB
Change type
What kind of change does this PR introduce?
Check list