Re: [PATCH] IB/core: Restore I/O MMU, s390 and powerpc support

[Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]

On Sun, 2017-03-19 at 11:26 +0200, Leon Romanovsky wrote:
> On Tue, Mar 07, 2017 at 10:56:53PM +0000, Bart Van Assche wrote:
> > 
> > Avoid that the following error message is reported on the console
> > while loading an RDMA driver with I/O MMU support enabled:
> > 
> > DMAR: Allocating domain for mlx5_0 failed
> > 
> > Ensure that DMA mapping operations that use to_pci_dev() to
> > access to struct pci_dev see the correct PCI device. E.g. the s390
> > and powerpc DMA mapping operations use to_pci_dev() even with I/O
> > MMU support disabled.
> > 
> > This patch preserves the following changes of the DMA mapping
> > updates
> > patch series:
> > - Introduction of dma_virt_ops.
> > - Removal of ib_device.dma_ops.
> > - Removal of struct ib_dma_mapping_ops.
> > - Removal of an if-statement from each ib_dma_*() operation.
> > - IB HW drivers no longer set dma_device directly.
> > 
> > Reported-by: Sebastian Ott <sebott-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
> > Reported-by: Parav Pandit <parav-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
> > Fixes: commit 99db9494035f ("IB/core: Remove ib_device.dma_device")
> > Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
> > ---
> >  drivers/infiniband/core/device.c | 26 ++++++++++++++++++++------
> >  include/rdma/ib_verbs.h          | 30 +++++++++++++++++-----------
> > --
> >  2 files changed, 37 insertions(+), 19 deletions(-)
> > 
> 
> Hi Doug,
> 
> Can you please forward this patch to Linus? The IB/core is broken
> without this patch.
> 

It's been applied, thanks.

-- 
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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