linux-kernel - Re: [PATCH rdma-next v4 0/3] SG fix together with update to RDMA umem

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Message-ID: <YSzgT6qTYRIkcMgD@unreal>
Date:   Mon, 30 Aug 2021 16:42:39 +0300
From:   Leon Romanovsky <leonro@...dia.com>
To:     Jason Gunthorpe <jgg@...dia.com>
CC:     Maor Gottlieb <maorg@...dia.com>, <dledford@...hat.com>,
        <hch@...radead.org>, <aelior@...vell.com>, <daniel@...ll.ch>,
        <airlied@...ux.ie>, <dennis.dalessandro@...nelisnetworks.com>,
        <dri-devel@...ts.freedesktop.org>,
        <intel-gfx@...ts.freedesktop.org>, <jani.nikula@...ux.intel.com>,
        <joonas.lahtinen@...ux.intel.com>, <linux-kernel@...r.kernel.org>,
        <linux-rdma@...r.kernel.org>, <maarten.lankhorst@...ux.intel.com>,
        <mripard@...nel.org>, <mkalderon@...vell.com>,
        <mike.marciniszyn@...nelisnetworks.com>,
        <mustafa.ismail@...el.com>, <rodrigo.vivi@...el.com>,
        <sroland@...are.com>, <shiraz.saleem@...el.com>,
        <tzimmermann@...e.de>, <linux-graphics-maintainer@...are.com>,
        <liweihang@...wei.com>, <liangwenpeng@...wei.com>,
        <yishaih@...dia.com>, <zackr@...are.com>, <zyjzyj2000@...il.com>
Subject: Re: [PATCH rdma-next v4 0/3] SG fix together with update to RDMA umem

On Mon, Aug 30, 2021 at 10:31:28AM -0300, Jason Gunthorpe wrote:
> On Mon, Aug 30, 2021 at 11:21:00AM +0300, Leon Romanovsky wrote:
> > On Tue, Aug 24, 2021 at 05:25:28PM +0300, Maor Gottlieb wrote:
> > > From: Maor Gottlieb <maorg@...dia.com>
> > > 
> > > Changelog:
> > > v4:
> > >  * Unify sg_free_table_entries with __sg_free_table
> > > v3: https://lore.kernel.org/lkml/cover.1627551226.git.leonro@nvidia.com/
> > >  * Rewrote to new API suggestion
> > >  * Split for more patches
> > > v2: https://lore.kernel.org/lkml/cover.1626605893.git.leonro@nvidia.com
> > >  * Changed implementation of first patch, based on our discussion with
> > >  * Christoph.
> > >    https://lore.kernel.org/lkml/YNwaVTT0qmQdxaZz@infradead.org/
> > > v1: https://lore.kernel.org/lkml/cover.1624955710.git.leonro@nvidia.com/
> > >  * Fixed sg_page with a _dma_ API in the umem.c
> > > v0: https://lore.kernel.org/lkml/cover.1624361199.git.leonro@nvidia.com
> > > 
> > > Maor Gottlieb (3):
> > >   lib/scatterlist: Provide a dedicated function to support table append
> > >   lib/scatterlist: Fix wrong update of orig_nents
> > >   RDMA: Use the sg_table directly and remove the opencoded version from
> > >     umem
> > > 
> > >  drivers/gpu/drm/drm_prime.c                 |  13 +-
> > >  drivers/gpu/drm/i915/gem/i915_gem_userptr.c |  11 +-
> > >  drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c  |  14 +-
> > >  drivers/infiniband/core/umem.c              |  56 ++++---
> > >  drivers/infiniband/core/umem_dmabuf.c       |   5 +-
> > >  drivers/infiniband/hw/hns/hns_roce_db.c     |   4 +-
> > >  drivers/infiniband/hw/irdma/verbs.c         |   2 +-
> > >  drivers/infiniband/hw/mlx4/doorbell.c       |   3 +-
> > >  drivers/infiniband/hw/mlx4/mr.c             |   4 +-
> > >  drivers/infiniband/hw/mlx5/doorbell.c       |   3 +-
> > >  drivers/infiniband/hw/mlx5/mr.c             |   3 +-
> > >  drivers/infiniband/hw/qedr/verbs.c          |   2 +-
> > >  drivers/infiniband/sw/rdmavt/mr.c           |   2 +-
> > >  drivers/infiniband/sw/rxe/rxe_mr.c          |   2 +-
> > >  include/linux/scatterlist.h                 |  56 +++++--
> > >  include/rdma/ib_umem.h                      |  11 +-
> > >  include/rdma/ib_verbs.h                     |  28 ++++
> > >  lib/scatterlist.c                           | 155 ++++++++++++--------
> > >  lib/sg_pool.c                               |   3 +-
> > >  tools/testing/scatterlist/main.c            |  38 +++--
> > >  20 files changed, 258 insertions(+), 157 deletions(-)
> > 
> > Jason,
> > 
> > Did you add these patches to the -next? I can't find them.
> 
> They sat in linux-next for awhile outside the rdma-next tree
> 
> All synced up now

Thanks

> 
> Jason