Re: [PATCH v4 0/6] virtio core DMA API conversion
From: Christian Borntraeger
Date: Fri Oct 30 2015 - 05:57:54 EST
Am 30.10.2015 um 02:09 schrieb Andy Lutomirski:
> 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.
> This appears to work on native and Xen x86_64 using both modern and
> legacy virtio-pci. It also appears to work on arm and arm64.
> It definitely won't work as-is on s390x, and I haven't been able to
> test Christian's patches because I can't get virtio-ccw to work in
> QEMU at all. I don't know what I'm doing wrong.
> virtio-net: Stop doing DMA from the stack
> drivers/net/virtio_net.c | 34 ++--
> drivers/virtio/Kconfig | 2 +-
> drivers/virtio/virtio_mmio.c | 67 ++-----
> drivers/virtio/virtio_pci_common.h | 6 -
> drivers/virtio/virtio_pci_legacy.c | 42 ++---
> drivers/virtio/virtio_pci_modern.c | 61 ++-----
> drivers/virtio/virtio_ring.c | 348 ++++++++++++++++++++++++++++++-------
do you also have an untested patch for drivers/s390/virtio/* ?
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