From: Jason Gunthorpe <jgg@nvidia.com>
To: Weihang Li <liweihang@huawei.com>
Cc: <leon@kernel.org>, <dledford@redhat.com>,
<linux-rdma@vger.kernel.org>, <linuxarm@openeuler.org>
Subject: Re: [PATCH RFC rdma-core 0/5] libhns: Add support for Dynamic Context Attachment
Date: Tue, 9 Feb 2021 15:38:49 -0400 [thread overview]
Message-ID: <20210209193849.GR4247@nvidia.com> (raw)
In-Reply-To: <1612667574-56673-1-git-send-email-liweihang@huawei.com>
On Sun, Feb 07, 2021 at 11:12:49AM +0800, Weihang Li wrote:
> The HIP09 introduces the DCA(Dynamic Context Attachment) feature which
> supports many RC QPs to share the WQE buffer in a memory pool. If a QP
> enables DCA feature, the WQE's buffer will not be allocated when creating
> but when the users start to post WRs. This will reduce the memory
> consumption when there are too many QPs are inactive.
>
> Please note that we didn't find the right way to get user's configuration,
> so in #4 we still use environment variable to achieve this. We will be
> appreciated if anyone can provide some sugggestions.
That is definately not going to work.. It should be some dv thing,
dv create qp or a dv customization of the parent domain spring to mind
Jason
next prev parent reply other threads:[~2021-02-09 19:46 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-07 3:12 [PATCH RFC rdma-core 0/5] libhns: Add support for Dynamic Context Attachment Weihang Li
2021-02-07 3:12 ` [PATCH RFC rdma-core 1/5] Update kernel headers Weihang Li
2021-02-07 3:12 ` [PATCH RFC rdma-core 2/5] libhns: Introduce DCA for RC QP Weihang Li
2021-02-09 19:44 ` Jason Gunthorpe
2021-02-20 6:12 ` liweihang
2021-02-07 3:12 ` [PATCH RFC rdma-core 3/5] libhns: Add support for shrinking DCA memory pool Weihang Li
2021-02-07 3:12 ` [PATCH RFC rdma-core 4/5] libhns: Add support for attaching QP's WQE buffer Weihang Li
2021-02-07 3:12 ` [PATCH RFC rdma-core 5/5] libhns: Add support for configuring DCA Weihang Li
2021-02-09 19:38 ` Jason Gunthorpe [this message]
2021-02-20 9:47 ` [PATCH RFC rdma-core 0/5] libhns: Add support for Dynamic Context Attachment liweihang
2021-02-09 19:53 ` Jason Gunthorpe
2021-02-20 8:40 ` liweihang
2021-02-22 16:01 ` Jason Gunthorpe
2021-02-23 8:07 ` liweihang
2021-02-24 9:48 ` liweihang
2021-02-24 18:55 ` Jason Gunthorpe
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