From: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH rdma-next 0/5] Dropples RQ
Date: Fri, 28 Jul 2017 14:18:51 -0400 [thread overview]
Message-ID: <1501265931.2593.38.camel@redhat.com> (raw)
In-Reply-To: <20170530072914.9709-1-leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
On Tue, 2017-05-30 at 10:29 +0300, Leon Romanovsky wrote:
> Hi Doug,
>
> From Maor:
> ---
> This series adding support to avoid RAW ethernet packet drops.
>
> When packets received and there are no receive WQEs, then
> the packets are dropped. In certain scenarios it may be preferred
> to configure the device to avoid such packet drops, assuming
> the posting of WQEs will resume shortly.
>
> Under such configuration, when a packet is received for a
> WQ with no receive WQEs, the packet processing is delayed
> until receive WQEs are posted.
>
> If receive WQEs are still not posted after a device configured
> time, the packet is dropped.
>
> To enable this delay drop feature on a WQ, the user should
> set the IB_WQ_FLAGS_DELAY_DROP flag on creation.
The series changes core code API, but only on the raw ethernet QP type,
which is essentially a Mellanox only thing, so I have no issues with
the API change as it is. Series applied.
--
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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prev parent reply other threads:[~2017-07-28 18:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-30 7:29 [PATCH rdma-next 0/5] Dropples RQ Leon Romanovsky
[not found] ` <20170530072914.9709-1-leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2017-05-30 7:29 ` [PATCH rdma-next 1/5] IB/core: Introduce delay drop for a WQ Leon Romanovsky
2017-05-30 7:29 ` [PATCH rdma-next 2/5] net/mlx5: Introduce set delay drop command Leon Romanovsky
2017-05-30 7:29 ` [PATCH rdma-next 3/5] net/mlx5: Introduce general notification event Leon Romanovsky
2017-05-30 7:29 ` [PATCH rdma-next 4/5] IB/mlx5: Add support to dropless RQ Leon Romanovsky
2017-05-30 7:29 ` [PATCH rdma-next 5/5] IB/mlx5: Add delay drop configuration and statistics Leon Romanovsky
2017-07-28 18:18 ` Doug Ledford [this message]
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