[PATCH v3 0/3] virtio DMA API core stuff

From: Andy Lutomirski <luto@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: linux-s390 <linux-s390@vger.kernel.org>,
	Joerg Roedel <jroedel@suse.de>, KVM <kvm@vger.kernel.org>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	benh@kernel.crashing.org,
	Sebastian Ott <sebott@linux.vnet.ibm.com>,
	virtualization@lists.linux-foundation.org,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Andy Lutomirski <luto@kernel.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	dwmw2@infradead.org, Christoph Hellwig <hch@lst.de>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>
Subject: [PATCH v3 0/3] virtio DMA API core stuff
Date: Tue, 27 Oct 2015 23:38:57 -0700	[thread overview]
Message-ID: <cover.1446014204.git.luto__40218.2430764244$1446420901$gmane$org@kernel.org> (raw)

This switches virtio to use the DMA API unconditionally.  I'm sure
it breaks things, but it seems to work on x86 using virtio-pci, with
and without Xen, and using both the modern 1.0 variant and the
legacy variant.

Changes from v2:
 - Fix really embarrassing bug.  This version actually works.

Changes from v1:
 - Fix an endian conversion error causing a BUG to hit.
 - Fix a DMA ordering issue (swiotlb=force works now).
 - Minor cleanups.

Andy Lutomirski (3):
  virtio_net: Stop doing DMA from the stack
  virtio_ring: Support DMA APIs
  virtio_pci: Use the DMA API

 drivers/net/virtio_net.c           |  53 +++++++----
 drivers/virtio/Kconfig             |   2 +-
 drivers/virtio/virtio_pci_common.h |   3 +-
 drivers/virtio/virtio_pci_legacy.c |  19 +++-
 drivers/virtio/virtio_pci_modern.c |  34 +++++--
 drivers/virtio/virtio_ring.c       | 187 ++++++++++++++++++++++++++++++-------
 tools/virtio/linux/dma-mapping.h   |  17 ++++
 7 files changed, 246 insertions(+), 69 deletions(-)
 create mode 100644 tools/virtio/linux/dma-mapping.h

-- 
2.4.3