56f65ed838
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
100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
/** @file
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Virtio SCSI Host Device specific type and macro definitions corresponding to
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the virtio-0.9.5 specification.
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Copyright (C) 2012, Red Hat, Inc.
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This program and the accompanying materials are licensed and made available
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under the terms and conditions of the BSD License which accompanies this
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distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
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WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _VIRTIO_SCSI_H_
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#define _VIRTIO_SCSI_H_
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#include <IndustryStandard/Virtio.h>
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//
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// virtio-0.9.5, Appendix I: SCSI Host Device
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//
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#pragma pack(1)
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typedef struct {
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UINT32 NumQueues;
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UINT32 SegMax;
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UINT32 MaxSectors;
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UINT32 CmdPerLun;
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UINT32 EventInfoSize;
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UINT32 SenseSize;
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UINT32 CdbSize;
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UINT16 MaxChannel;
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UINT16 MaxTarget;
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UINT32 MaxLun;
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} VIRTIO_SCSI_CONFIG;
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#pragma pack()
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#define OFFSET_OF_VSCSI(Field) OFFSET_OF (VIRTIO_SCSI_CONFIG, Field)
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#define SIZE_OF_VSCSI(Field) (sizeof ((VIRTIO_SCSI_CONFIG *) 0)->Field)
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#define VIRTIO_SCSI_F_INOUT BIT0
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#define VIRTIO_SCSI_F_HOTPLUG BIT1
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//
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// We expect these maximum sizes from the host. Also we force the CdbLength and
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// SenseDataLength parameters of EFI_EXT_SCSI_PASS_THRU_PROTOCOL.PassThru() not
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// to exceed these limits. See UEFI 2.3.1 errata C 14.7.
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//
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#define VIRTIO_SCSI_CDB_SIZE 32
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#define VIRTIO_SCSI_SENSE_SIZE 96
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//
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// We pass the dynamically sized buffers ("dataout", "datain") in separate ring
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// descriptors.
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//
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#pragma pack(1)
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typedef struct {
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UINT8 Lun[8];
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UINT64 Id;
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UINT8 TaskAttr;
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UINT8 Prio;
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UINT8 Crn;
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UINT8 Cdb[VIRTIO_SCSI_CDB_SIZE];
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} VIRTIO_SCSI_REQ;
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typedef struct {
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UINT32 SenseLen;
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UINT32 Residual;
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UINT16 StatusQualifier;
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UINT8 Status;
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UINT8 Response;
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UINT8 Sense[VIRTIO_SCSI_SENSE_SIZE];
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} VIRTIO_SCSI_RESP;
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#pragma pack()
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//
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// selector of first virtio queue usable for request transfer
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//
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#define VIRTIO_SCSI_REQUEST_QUEUE 2
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//
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// host response codes
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//
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#define VIRTIO_SCSI_S_OK 0
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#define VIRTIO_SCSI_S_OVERRUN 1
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#define VIRTIO_SCSI_S_ABORTED 2
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#define VIRTIO_SCSI_S_BAD_TARGET 3
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#define VIRTIO_SCSI_S_RESET 4
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#define VIRTIO_SCSI_S_BUSY 5
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#define VIRTIO_SCSI_S_TRANSPORT_FAILURE 6
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#define VIRTIO_SCSI_S_TARGET_FAILURE 7
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#define VIRTIO_SCSI_S_NEXUS_FAILURE 8
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#define VIRTIO_SCSI_S_FAILURE 9
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#endif // _VIRTIO_SCSI_H_
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