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[virtio] Add virtio 1.0 PCI support

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This commit adds support for driving virtio 1.0 PCI devices.  In
addition to various helpers, a number of vpm_ functions are introduced
to be used instead of their legacy vp_ counterparts when accessing
virtio 1.0 (aka modern) devices.

Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Modified-by: Michael Brown <mcb30@ipxe.org>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Ladi Prosek
2016-04-11 11:26:58 +02:00
committed by Michael Brown
parent 7b499f849e
commit 8a055a2a70
6 changed files with 517 additions and 12 deletions
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src/drivers/net/virtio-net.c
+3 -2
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@@ -24,14 +24,15 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <ipxe/list.h>
#include <ipxe/iobuf.h>
#include <ipxe/netdevice.h>
#include <ipxe/pci.h>
#include <ipxe/if_ether.h>
#include <ipxe/ethernet.h>
#include <ipxe/virtio-ring.h>
#include <ipxe/virtio-pci.h>
#include <ipxe/virtio-ring.h>
#include "virtio-net.h"
/*
@@ -135,7 +136,7 @@ static void virtnet_enqueue_iob ( struct net_device *netdev,
virtnet, iobuf, vq_idx );
vring_add_buf ( vq, list, out, in, iobuf, 0 );
vring_kick ( virtnet->ioaddr, vq, 1 );
vring_kick ( NULL, virtnet->ioaddr, vq, 1 );
}
/** Try to keep rx virtqueue filled with iobufs