#ifndef _VIRTIO_LIB_H_\r
#define _VIRTIO_LIB_H_\r
\r
-#include <Protocol/PciIo.h>\r
-#include <IndustryStandard/Virtio.h>\r
-\r
-/**\r
-\r
- Write a word into Region 0 of the device specified by PciIo.\r
-\r
- Region 0 must be an iomem region. This is an internal function for the\r
- driver-specific VIRTIO_CFG_WRITE() macros.\r
-\r
- @param[in] PciIo Target PCI device.\r
-\r
- @param[in] FieldOffset Destination offset.\r
-\r
- @param[in] FieldSize Destination field size, must be in { 1, 2, 4, 8 }.\r
-\r
- @param[in] Value Little endian value to write, converted to UINT64.\r
- The least significant FieldSize bytes will be used.\r
+#include <Protocol/VirtioDevice.h>\r
\r
-\r
- @return Status code returned by PciIo->Io.Write().\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-VirtioWrite (\r
- IN EFI_PCI_IO_PROTOCOL *PciIo,\r
- IN UINTN FieldOffset,\r
- IN UINTN FieldSize,\r
- IN UINT64 Value\r
- );\r
-\r
-\r
-/**\r
-\r
- Read a word from Region 0 of the device specified by PciIo.\r
-\r
- Region 0 must be an iomem region. This is an internal function for the\r
- driver-specific VIRTIO_CFG_READ() macros.\r
-\r
- @param[in] PciIo Source PCI device.\r
-\r
- @param[in] FieldOffset Source offset.\r
-\r
- @param[in] FieldSize Source field size, must be in { 1, 2, 4, 8 }.\r
-\r
- @param[in] BufferSize Number of bytes available in the target buffer. Must\r
- equal FieldSize.\r
-\r
- @param[out] Buffer Target buffer.\r
-\r
-\r
- @return Status code returned by PciIo->Io.Read().\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-VirtioRead (\r
- IN EFI_PCI_IO_PROTOCOL *PciIo,\r
- IN UINTN FieldOffset,\r
- IN UINTN FieldSize,\r
- IN UINTN BufferSize,\r
- OUT VOID *Buffer\r
- );\r
+#include <IndustryStandard/Virtio.h>\r
\r
\r
/**\r
The caller is responsible for initializing *Indices with VirtioPrepare()\r
first.\r
\r
- @param[in out] Ring The virtio ring to append the buffer to, as a\r
- descriptor.\r
+ @param[in,out] Ring The virtio ring to append the buffer to, as a\r
+ descriptor.\r
\r
- @param [in] BufferPhysAddr (Guest pseudo-physical) start address of the\r
- transmit / receive buffer.\r
+ @param[in] BufferPhysAddr (Guest pseudo-physical) start address of the\r
+ transmit / receive buffer.\r
\r
- @param [in] BufferSize Number of bytes to transmit or receive.\r
+ @param[in] BufferSize Number of bytes to transmit or receive.\r
\r
- @param [in] Flags A bitmask of VRING_DESC_F_* flags. The caller\r
- computes this mask dependent on further buffers\r
- to append and transfer direction.\r
- VRING_DESC_F_INDIRECT is unsupported. The\r
- VRING_DESC.Next field is always set, but the\r
- host only interprets it dependent on\r
- VRING_DESC_F_NEXT.\r
+ @param[in] Flags A bitmask of VRING_DESC_F_* flags. The caller\r
+ computes this mask dependent on further buffers to\r
+ append and transfer direction.\r
+ VRING_DESC_F_INDIRECT is unsupported. The\r
+ VRING_DESC.Next field is always set, but the host\r
+ only interprets it dependent on VRING_DESC_F_NEXT.\r
\r
- In *Indices:\r
-\r
- @param [in out] NextDescIdx On input, the index identifying the next\r
- descriptor to carry the buffer. On output,\r
- incremented by one, modulo 2^16.\r
+ @param[in,out] Indices Indices->HeadDescIdx is not accessed.\r
+ On input, Indices->NextDescIdx identifies the next\r
+ descriptor to carry the buffer. On output,\r
+ Indices->NextDescIdx is incremented by one, modulo\r
+ 2^16.\r
\r
**/\r
VOID\r
Notify the host about the descriptor chain just built, and wait until the\r
host processes it.\r
\r
- @param[in] PciIo The target virtio PCI device to notify.\r
+ @param[in] VirtIo The target virtio device to notify.\r
\r
@param[in] VirtQueueId Identifies the queue for the target device.\r
\r
- @param[in out] Ring The virtio ring with descriptors to submit.\r
-\r
- In *Indices:\r
+ @param[in,out] Ring The virtio ring with descriptors to submit.\r
\r
- @param[in] HeadDescIdx Identifies the head descriptor of the descriptor\r
- chain.\r
+ @param[in] Indices Indices->NextDescIdx is not accessed.\r
+ Indices->HeadDescIdx identifies the head descriptor\r
+ of the descriptor chain.\r
\r
\r
- @return Error code from VirtioWrite() if it fails.\r
+ @return Error code from VirtIo->SetQueueNotify() if it fails.\r
\r
@retval EFI_SUCCESS Otherwise, the host processed all descriptors.\r
\r
EFI_STATUS\r
EFIAPI\r
VirtioFlush (\r
- IN EFI_PCI_IO_PROTOCOL *PciIo,\r
- IN UINT16 VirtQueueId,\r
- IN OUT VRING *Ring,\r
- IN DESC_INDICES *Indices\r
+ IN VIRTIO_DEVICE_PROTOCOL *VirtIo,\r
+ IN UINT16 VirtQueueId,\r
+ IN OUT VRING *Ring,\r
+ IN DESC_INDICES *Indices\r
);\r
\r
#endif // _VIRTIO_LIB_H_\r
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