<div style="font:14px/1.5 'Lucida Grande', '微软雅黑';color:#333;"><p style="font:14px/1.5 'Lucida Grande';margin:0;">Hi, Santosh,</p><p style="font:14px/1.5 'Lucida Grande';margin:0;"><br></p><p style="font:14px/1.5 'Lucida Grande';margin:0;">I tried upstream kernel 4.8.12, the rds-tool with RDMA option <span style="line-height: 1.5;">can work.</span><span style="line-height: 1.5;">(Interface for RDMA over RDS)</span></p><p style="font:14px/1.5 'Lucida Grande';margin:0;"><br></p><p style="font:14px/1.5 'Lucida Grande';margin:0;">If I have socket programming in kernel directly, such RDMA interface over RDS is not necessary, right?</p><p style="font:14px/1.5 'Lucida Grande';margin:0;">Since programming in kernel, there will be no copy between user space and kernel space, RDS socket (with rds-rdma.ko) has the same efficient as RDMA interface over RDS.</p><p style="font:14px/1.5 'Lucida Grande';margin:0;"><br></p><p style="font:14px/1.5 'Lucida Grande';margin:0;">Thanks.</p><br><div><div style="font: 14px/1.5 'Lucida Grande';"><div class="" style="line-height: normal; 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On 12/4/16 6:40 PM, liang_kang wrote:
> Hi, Santosh,
>
>
> I can not work with latest tool, either.
>
[...]
> Is there anything wrong with my test parameter or rds driver?
>
Yes. You are using RHEL with Mellanox OFED. You need to reach out to
mellanox for support for this.
As I said, please try upstream kernel which just work fine.
Regards,
Santosh
</pre></div></div>