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From: Jerin Jacob Kollanukkaran <>
To: Mattias Rönnblom <>
Cc: "" <>, "" <>
Subject: Re: [dpdk-stable] [PATCH v2] event/dsw: avoid credit leak on oversized enqueue bursts
Date: Tue, 14 Jan 2020 19:46:04 +0000
Message-ID: <> (raw)

> -----Original Message-----
> From: Mattias Rönnblom <>
> Sent: Tuesday, January 14, 2020 11:34 PM
> To: Jerin Jacob Kollanukkaran <>
> Cc:; Mattias Rönnblom <>;
> Subject: [EXT] [PATCH v2] event/dsw: avoid credit leak on oversized enqueue
> bursts
> If an application issues rte_event_enqueue_new_burst() or
> rte_event_enqueue_forward_burst() call with a burst of events longer than the
> configured max enqueue burst size, DSW allocates credits not only for events
> actually enqueued, but for the complete burst. If this process is repeated,
> enough credits will have leaked to cause the event device to backpressure (i.e.
> disallow) any new enqueue operations.
> In addition, the port-level enqueue xstats will log the wrong number of events
> enqueued for oversized enqueues.
> This patch makes DSW gracefully handle oversized enqueue bursts.
> Fixes: 1c8e3caa3bfb ("event/dsw: add event scheduling and device start/stop")
> Cc:
> Signed-off-by: Mattias Rönnblom <>

Please add the change log when sending the incremental versions.


# Fix the following reported compilation error.

Applied to dpdk-next-eventdev/master. Thanks.

             reply	other threads:[~2020-01-14 19:46 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-14 19:46 Jerin Jacob Kollanukkaran [this message]
  -- strict thread matches above, loose matches on Subject: below --
2020-01-14 17:32 [dpdk-stable] [EXT] [PATCH] " Jerin Jacob Kollanukkaran
2020-01-14 18:03 ` [dpdk-stable] [PATCH v2] " Mattias Rönnblom

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