From: Jason Gunthorpe <jgg@nvidia.com>
To: Weihang Li <liweihang@huawei.com>
Cc: <dledford@redhat.com>, <leon@kernel.org>,
<linux-rdma@vger.kernel.org>, <linuxarm@openeuler.org>
Subject: Re: [PATCH v2 for-next] RDMA/hns: Add support of direct wqe
Date: Mon, 8 Feb 2021 20:13:36 -0400 [thread overview]
Message-ID: <20210209001336.GA1232306@nvidia.com> (raw)
In-Reply-To: <1611997513-27107-1-git-send-email-liweihang@huawei.com>
On Sat, Jan 30, 2021 at 05:05:13PM +0800, Weihang Li wrote:
> From: Yixing Liu <liuyixing1@huawei.com>
>
> Direct wqe is a mechanism to fill wqe directly into the hardware. In the
> case of light load, the wqe will be filled into pcie bar space of the
> hardware, this will reduce one memory access operation and therefore reduce
> the latency.
>
> Signed-off-by: Yixing Liu <liuyixing1@huawei.com>
> Signed-off-by: Lang Cheng <chenglang@huawei.com>
> Signed-off-by: Weihang Li <liweihang@huawei.com>
> ---
> Changes since v1:
> * Delete an extra blank line.
> * Link: https://patchwork.kernel.org/project/linux-rdma/patch/1611395717-11081-1-git-send-email-liweihang@huawei.com/
>
> drivers/infiniband/hw/hns/hns_roce_device.h | 6 ++++
> drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 44 ++++++++++++++++++++++++++++-
> drivers/infiniband/hw/hns/hns_roce_hw_v2.h | 13 +++++++++
> 3 files changed, 62 insertions(+), 1 deletion(-)
Applied to for-next, thanks
Jason
prev parent reply other threads:[~2021-02-09 0:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-30 9:05 [PATCH v2 for-next] RDMA/hns: Add support of direct wqe Weihang Li
2021-02-09 0:13 ` Jason Gunthorpe [this message]
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