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OvmfPkg: Make the VirtIo devices use the new VIRTIO_DEVICE_PROTOCOL

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This change replaces the accesses to the PCI bus from the Block, Scsi and Net drivers by
the use of the new VIRTIO_DEVICE_PROTOCOL protocol that abstracts the transport layer.
It means these drivers can be used on PCI and MMIO transport layer.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>

v5:
- VirtioFlush(): update comment block in VirtioLib.[hc]; error code is
  propagated from VirtIo->SetQueueNotify().
- VirtioBlkInit(): jump to Failed label if SetPageSize() fails
- VirtioBlkInit(): fixup comment, and add error handling, near
  SetQueueNum() call
- VirtioBlkDriverBindingStart(): remove redundant (always false) check for
  a subsystem device ID different from VIRTIO_SUBSYSTEM_BLOCK_DEVICE;
  VirtioBlkDriverBindingSupported() handles it already
- VirtioNetGetFeatures(): update stale comment block
- VirtioNetGetFeatures(): retrieve MAC address byte for byte (open-coded
  loop)
- VirtioNetDriverBindingStart(): remove redundant (always false) check for
  a subsystem device ID different from VIRTIO_SUBSYSTEM_NETWORK_CARD;
  VirtioNetDriverBindingSupported() handles it already
- VirtioNetInitRing(): call SetQueueNum() and SetQueueAlign() for proper
  MMIO operation
- VirtioNetInitialize(): fix destination error label for when
  SetPageSize() fails
- VirtioScsi.c: fix comment block of VIRTIO_CFG_WRITE()/VIRTIO_CFG_READ()
- VirtioScsiInit(): fix destination error label for when SetPageSize()
  fails
- VirtioScsiInit(): call SetQueueNum() and SetQueueAlign() for proper MMIO
  operation

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14966 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin
2013-12-11 16:58:22 +00:00
committed by jljusten
parent 6fb4e772a0
commit 56f65ed838
27 changed files with 388 additions and 532 deletions
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14
OvmfPkg/Include/IndustryStandard/VirtioNet.h
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@@ -1,5 +1,4 @@
/** @file
Virtio Network Device specific type and macro definitions corresponding to
the virtio-0.9.5 specification.
@@ -25,14 +24,13 @@
//
#pragma pack(1)
typedef struct {
VIRTIO_HDR Generic;
UINT8 VhdrMac[6];
UINT16 VhdrLinkStatus;
} VNET_HDR;
UINT8 Mac[6];
UINT16 LinkStatus;
} VIRTIO_NET_CONFIG;
#pragma pack()
#define OFFSET_OF_VNET(Field) OFFSET_OF (VNET_HDR, Field)
#define SIZE_OF_VNET(Field) (sizeof ((VNET_HDR *) 0)->Field)
#define OFFSET_OF_VNET(Field) OFFSET_OF (VIRTIO_NET_CONFIG, Field)
#define SIZE_OF_VNET(Field) (sizeof ((VIRTIO_NET_CONFIG *) 0)->Field)
//
// Queue Identifiers
@@ -91,7 +89,7 @@ typedef struct {
#define VIRTIO_NET_HDR_GSO_ECN BIT7
//
// Link Status Bits in VNET_HDR.VhdrLinkStatus
// Link Status Bits in VIRTIO_NET_CONFIG.LinkStatus
//
#define VIRTIO_NET_S_LINK_UP BIT0
#define VIRTIO_NET_S_ANNOUNCE BIT1