[openib-general] ibv_cmd_create_qp() question

[Heiko J Schick]

Hello Steven,

we had this problem, too. For ibv_cmd_create_qp we pass via our cmd  
struct
the address of the response block to the kernel.The kernel can copies  
then
all values into the response block (from kernel space to user space).

The provider library can then the provider specific information which  
are
passed from the kernel.

See ehcau_create_qp in ehca_umain.c for more information.

Regards,
	Heiko

On Feb 15, 2006, at 8:00 PM, Steve Wise wrote:

> I have a provider in the works that needs provider-specific  
> information
> passed from the kernel create_qp verb back to the provider  
> library.  It
> seems that ibv_cmd_create_qp() doesn't allow for provider-specific  
> data
> to be passed out of the kernel back to the provider lib.
>
> ibv_cmd_create_cq() does support this.
>
> I can come up with a patch to the code to support this, but I  
> wanted to
> query the group to make sure I'm not missing something.
>
> Is it a reasonable extension to add this to create_qp()?
>
> Thanks,
>
> Steve.
>
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