Re: [PATCH for-next] RDMA/vmw_pvrdma: Add shared receive queue support

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On Thu, Nov 02, 2017 at 08:29:32PM +0200, Leon Romanovsky wrote:
> On Thu, Nov 02, 2017 at 11:23:25AM -0700, Bryan Tan wrote:
> > On Thu, Nov 02, 2017 at 08:02:47PM +0200, Leon Romanovsky wrote:
> > > > Here we assumed that the verbs layer will only call down to us to
> > > > destroy a valid SRQ. If an SRQ has been created, then the srq_tbl
> > > > should exist. I can add a check here if that's not behaviour we
> > > > should rely on.
> > >
> > > By saying "verbs layer", are you referring to libibverbs or IB/core?
> > >
> >
> > IB/core. Looking at core/verbs.c, it seems like the parameters are
> > assumed to be good. I'm unclear on who is responsible for ensuring
> > or checking for good inputs, kernel clients, IB/core, or the driver.
> 
> The first one who can recognize the wrong parameters - fail early.
> So if IB/core provides to you clean input, there is no need to check it
> again.
> 

I'll add the check then, given that IB/core doesn't make any guarantees.

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