From: Jason Gunthorpe <jgg@nvidia.com>
To: Wenpeng Liang <liangwenpeng@huawei.com>
Cc: leon@kernel.org, linux-rdma@vger.kernel.org, linuxarm@huawei.com
Subject: Re: [PATCH for-next 2/2] RDMA/hns: Add NOP operation for sending WR
Date: Thu, 7 Apr 2022 10:20:12 -0300 [thread overview]
Message-ID: <20220407132012.GL2120790@nvidia.com> (raw)
In-Reply-To: <20220407131403.26040-3-liangwenpeng@huawei.com>
On Thu, Apr 07, 2022 at 09:14:03PM +0800, Wenpeng Liang wrote:
> From: Yangyang Li <liyangyang20@huawei.com>
>
> The NOP operation is a no-op, mainly used in scenarios where SQWQE requires
> page alignment or WQE size alignment. Each NOP WR consumes one SQWQE, but
> the hardware does not operate and directly generates a CQE. The IB
> specification does not specify this type of WR.
>
> Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
> Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
> ---
> drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 9 +++++++++
> drivers/infiniband/hw/hns/hns_roce_hw_v2.h | 9 +++++++++
> 2 files changed, 18 insertions(+)
Where is it used?
Jason
next prev parent reply other threads:[~2022-04-07 13:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-07 13:14 [PATCH for-next 0/2] RDMA/hns: Add NOP operation for sending WR Wenpeng Liang
2022-04-07 13:14 ` [PATCH for-next 1/2] RDMA/hns: Modify the name of the macro used to map opcodes Wenpeng Liang
2022-04-07 13:14 ` [PATCH for-next 2/2] RDMA/hns: Add NOP operation for sending WR Wenpeng Liang
2022-04-07 13:20 ` Jason Gunthorpe [this message]
2022-04-16 2:11 ` Wenpeng Liang
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