On May 30, 2018, at 1:55 AM, Tiwei Bie <tiwei.bie@xxxxxxxxx> wrote:
There is a new feature bit allocated in virtio spec to support SR-IOV (Single Root I/O Virtualization): https://github.com/oasis-tcs/virtio-spec/issues/11 This patch enables the support for this feature bit in virtio driver. Signed-off-by: Tiwei Bie <tiwei.bie@xxxxxxxxx> --- This patch depends on below proposal: https://lists.oasis-open.org/archives/virtio-dev/201805/msg00154.html This patch depends on below patch: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/commit/?h=pci/virtualization&id=8effc395c2097e258fcedfc02ed4a66d45fb4238 drivers/virtio/virtio_pci_common.c | 20 ++++++++++++++++++++ drivers/virtio/virtio_pci_modern.c | 14 ++++++++++++++ include/uapi/linux/virtio_config.h | 7 ++++++- 3 files changed, 40 insertions(+), 1 deletion(-)
<snip>
diff --git a/include/uapi/linux/virtio_config.h b/include/uapi/linux/virtio_config.hindex 308e2096291f..b7c1f4e7d59e 100644 --- a/include/uapi/linux/virtio_config.h +++ b/include/uapi/linux/virtio_config.h @@ -49,7 +49,7 @@
There is a value in the comment directly before this that should be updated as well to be consistent with the new value for VIRTIO_TRANSPORT_F_END below.
* transport being used (eg. virtio_ring), the rest are per-device feature * bits. */ #define VIRTIO_TRANSPORT_F_START 28 -#define VIRTIO_TRANSPORT_F_END 34 +#define VIRTIO_TRANSPORT_F_END 38 #ifndef VIRTIO_CONFIG_NO_LEGACY /* Do we get callbacks when the ring is completely used, even if we've
<snip> -- Mark Rustad, Networking Division, Intel Corporation
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