Re: [PATCH for-next 3/4] IB/hfi1: Move receive work queue struct into uapi directory

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On Wed, Nov 28, 2018 at 12:27:49PM -0700, Jason Gunthorpe wrote:
> On Wed, Nov 28, 2018 at 09:01:45PM +0200, Leon Romanovsky wrote:
> > On Wed, Nov 28, 2018 at 10:35:55AM -0800, Dennis Dalessandro wrote:
> > > From: Kamenee Arumugam <kamenee.arumugam@xxxxxxxxx>
> > >
> > > The rvt_rwqe and rvt_rwq struct elements are shared between
> > > rdmavt and the providers but not in uapi directory.
> > > As per the comment in
> > > https://marc.info/?l=linux-rdma&m=152296522708522&w=2,
> > > The hfi1 driver and the rdma core driver are not using
> > > shared structures in the uapi directory.
> > >
> > > Move rvt_rwqe and rvt_rwq struct into rvt-abi.h header in uapi
> > > directory. Create rvt_krwq kernel struct to separate
> > > it from the user version.
> > >
> > > Reviewed-by: Mike Marciniszyn <mike.marciniszyn@xxxxxxxxx>
> > > Reviewed-by: Michael J. Ruhl <michael.j.ruhl@xxxxxxxxx>
> > > Signed-off-by: Kamenee Arumugam <kamenee.arumugam@xxxxxxxxx>
> > > Signed-off-by: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>
> > >  include/rdma/rdmavt_qp.h    |   26 +-------------------------
> > >  include/uapi/rdma/rvt-abi.h |   27 +++++++++++++++++++++++++++
> > >  2 files changed, 28 insertions(+), 25 deletions(-)
> > >
> > > diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h
> > > index cbafb18..1ef17a6 100644
> > > +++ b/include/rdma/rdmavt_qp.h
> > > @@ -52,6 +52,7 @@
> > >  #include <rdma/ib_pack.h>
> > >  #include <rdma/ib_verbs.h>
> > >  #include <rdma/rdmavt_cq.h>
> > > +#include <rdma/rvt-abi.h>
> > >  /*
> > >   * Atomic bit definitions for r_aflags.
> > >   */
> > > @@ -177,31 +178,6 @@ struct rvt_swqe {
> > >  	struct rvt_sge sg_list[0];
> > >  };
> > >
> > > -/*
> > > - * Receive work request queue entry.
> > > - * The size of the sg_list is determined when the QP (or SRQ) is created
> > > - * and stored in qp->r_rq.max_sge (or srq->rq.max_sge).
> > > - */
> > > -struct rvt_rwqe {
> > > -	u64 wr_id;
> > > -	u8 num_sge;
> > > -	struct ib_sge sg_list[0];
> > > -};
> > > -
> > > -/*
> > > - * This structure is used to contain the head pointer, tail pointer,
> > > - * and receive work queue entries as a single memory allocation so
> > > - * it can be mmap'ed into user space.
> > > - * Note that the wq array elements are variable size so you can't
> > > - * just index into the array to get the N'th element;
> > > - * use get_rwqe_ptr() instead.
> > > - */
> > > -struct rvt_rwq {
> > > -	u32 head;               /* new work requests posted to the head */
> > > -	u32 tail;               /* receives pull requests from here. */
> > > -	struct rvt_rwqe wq[0];
> > > -};
> > > -
> > >  struct rvt_rq {
> > >  	struct rvt_rwq *wq;
> > >  	u32 size;               /* size of RWQE array */
> > > diff --git a/include/uapi/rdma/rvt-abi.h b/include/uapi/rdma/rvt-abi.h
> > > index 9c3c7de..b8ec20f 100644
> > > +++ b/include/uapi/rdma/rvt-abi.h
> > > @@ -27,4 +27,31 @@ struct rvt_cq_wc {
> > >  	struct ib_uverbs_wc uqueue[0];
> > >  };
> > >
> > > +/*
> > > + * Receive work request queue entry.
> > > + * The size of the sg_list is determined when the QP (or SRQ) is created
> > > + * and stored in qp->r_rq.max_sge (or srq->rq.max_sge).
> > > + */
> > > +struct rvt_rwqe {
> > > +	__u64 wr_id;
> > > +	__u8 num_sge;
> > > +	__u8 padding[7];
> > > +	struct ib_sge sg_list[0];
> >
> > The same comment as for previous patch.
>
> I thought rdma-core's travis build checks for this kind of stuff.. Did
> you put this in rdma-core and run buildlib/cbuild pkg travis?

Are you asking me? I don't.

>
> Jason

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