[PATCH] vhost: reduce memory footprint when IOMMU is disabled

[Xia, Chenbo]

> -----Original Message-----
> From: Xia, Chenbo <chenbo.xia at intel.com>
> Sent: Thursday, September 22, 2022 9:09 PM
> To: David Marchand <david.marchand at redhat.com>; dev at dpdk.org
> Cc: Maxime Coquelin <maxime.coquelin at redhat.com>
> Subject: RE: [PATCH] vhost: reduce memory footprint when IOMMU is disabled
> 
> > -----Original Message-----
> > From: David Marchand <david.marchand at redhat.com>
> > Sent: Friday, September 16, 2022 5:02 PM
> > To: dev at dpdk.org
> > Cc: Maxime Coquelin <maxime.coquelin at redhat.com>; Xia, Chenbo
> > <chenbo.xia at intel.com>
> > Subject: [PATCH] vhost: reduce memory footprint when IOMMU is disabled
> >
> > If an application does not request IOMMU support, we can avoid
> > allocating a IOMMU pool.
> >
> > This saves 112kB (IOTLB_CACHE_SIZE * sizeof(struct vhost_iotlb_entry))
> > per vq.
> >
> > Signed-off-by: David Marchand <david.marchand at redhat.com>
> > ---
> >  lib/vhost/iotlb.c  | 20 +++++++++++---------
> >  lib/vhost/socket.c |  4 +++-
> >  lib/vhost/vhost.c  |  7 ++++++-
> >  lib/vhost/vhost.h  |  5 ++++-
> >  4 files changed, 24 insertions(+), 12 deletions(-)
> 
> The compilation issue seems not related to this patch.
> 
> Reviewed-by: Chenbo Xia <chenbo.xia at intel.com>

Applied to next-virtio/main, thanks