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efa: Fix CQ poll after QP destroy #1616

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Merged
merged 1 commit into from
Jul 4, 2025

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mrgolin
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@mrgolin mrgolin commented Jun 19, 2025

After a QP has been destroyed there might still be pending CQEs. As an optimization for some cases, poll functions ignore CQs that are not in use by any QP, preventing completions from being read after destruction of the last QP that uses this CQ. Remove this optimization.

After a QP has been destroyed there might still be pending CQEs. As an
optimization for some cases, poll functions ignore CQs that are not in
use by any QP, preventing completions from being read after destruction
of the last QP that uses this CQ. Remove this optimization.

Reviewed-by: Firas Jahjah <firasj@amazon.com>
Signed-off-by: Michael Margolin <mrgolin@amazon.com>
@mrgolin mrgolin force-pushed the poll-after-qp-destroy branch from 2e8ad62 to 3f02277 Compare June 25, 2025 13:51
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mrgolin commented Jul 4, 2025

@jgunthorpe @rleon Can we please merge this small change?

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/azp run

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Azure Pipelines successfully started running 1 pipeline(s).

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Unbreaking the CI was a Microsoft adventure of "It does not work" errors when clicking a button until it finally worked after restarting web browsers to make the button happy again. Sigh.

@jgunthorpe jgunthorpe merged commit 73b6210 into linux-rdma:master Jul 4, 2025
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2 participants