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audk/OvmfPkg/PvScsiDxe/PvScsiDxe.inf

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OvmfPkg/PvScsiDxe: Create empty driver In preparation for support booting from PvScsi devices, create a basic scaffolding for a driver. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-2-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:44 +01:00
## @file
#
# This driver produces Extended SCSI Pass Thru Protocol instances for
# pvscsi devices.
#
# Copyright (C) 2020, Oracle and/or its affiliates.
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
##
[Defines]
INF_VERSION = 1.29
BASE_NAME = PvScsiDxe
FILE_GUID = 30346B14-1580-4781-879D-BA0C55AE9BB2
MODULE_TYPE = UEFI_DRIVER
VERSION_STRING = 1.0
ENTRY_POINT = PvScsiEntryPoint
[Sources]
PvScsi.c
OvmfPkg/PvScsiDxe: Install stubbed EXT_SCSI_PASS_THRU Support dynamic insertion and removal of the protocol. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-6-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:48 +01:00
PvScsi.h
OvmfPkg/PvScsiDxe: Create empty driver In preparation for support booting from PvScsi devices, create a basic scaffolding for a driver. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-2-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:44 +01:00
[Packages]
MdePkg/MdePkg.dec
OvmfPkg/PvScsiDxe: Probe PCI devices and look for PvScsi PvScsiControllerSupported() is called on handles passed in by the ConnectController() boot service and if the handle is the PVSCSI controller, the function would return success. A success return value will attach our driver to the device. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-5-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:47 +01:00
OvmfPkg/OvmfPkg.dec
OvmfPkg/PvScsiDxe: Create empty driver In preparation for support booting from PvScsi devices, create a basic scaffolding for a driver. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-2-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:44 +01:00
[LibraryClasses]
OvmfPkg/PvScsiDxe: Setup requests and completions rings These rings are shared memory buffers between host and device in which a cyclic buffer is managed to send request descriptors from host to device and receive completion descriptors from device to host. Note that because device may be constrained by IOMMU or guest may be run under AMD SEV, we make sure to map these rings to device by using PciIo->Map(). Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-14-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2020-03-28 21:00:56 +01:00
BaseLib
OvmfPkg/PvScsiDxe: Report the number of targets and LUNs Implement EXT_SCSI_PASS_THRU.GetNextTarget() and EXT_SCSI_PASS_THRU.GetNextTargetLun(). ScsiBusDxe scans all MaxTarget * MaxLun possible devices. This can take unnecessarily long for large number of targets. To deal with this, VirtioScsiDxe has defined PCDs to limit the MaxTarget & MaxLun to desired values which gives sufficient performance. It is very important in virtio-scsi as it can have very big MaxTarget & MaxLun. Even though a common PVSCSI device has a default MaxTarget=64 and MaxLun=0, we implement similar mechanism as virtio-scsi for completeness. This may be useful in the future when PVSCSI will have bigger values for MaxTarget and MaxLun. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-7-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:49 +01:00
BaseMemoryLib
OvmfPkg/PvScsiDxe: Install stubbed EXT_SCSI_PASS_THRU Support dynamic insertion and removal of the protocol. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-6-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:48 +01:00
DebugLib
MemoryAllocationLib
OvmfPkg/PvScsiDxe: Probe PCI devices and look for PvScsi PvScsiControllerSupported() is called on handles passed in by the ConnectController() boot service and if the handle is the PVSCSI controller, the function would return success. A success return value will attach our driver to the device. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-5-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:47 +01:00
UefiBootServicesTableLib
OvmfPkg/PvScsiDxe: Create empty driver In preparation for support booting from PvScsi devices, create a basic scaffolding for a driver. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-2-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:44 +01:00
UefiDriverEntryPoint
OvmfPkg/PvScsiDxe: Install DriverBinding protocol In order to probe and connect to the PvScsi device we need this protocol. Currently it does nothing. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-3-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:45 +01:00
UefiLib
OvmfPkg/PvScsiDxe: Probe PCI devices and look for PvScsi PvScsiControllerSupported() is called on handles passed in by the ConnectController() boot service and if the handle is the PVSCSI controller, the function would return success. A success return value will attach our driver to the device. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-5-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:47 +01:00
[Protocols]
OvmfPkg/PvScsiDxe: Install stubbed EXT_SCSI_PASS_THRU Support dynamic insertion and removal of the protocol. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-6-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:48 +01:00
gEfiExtScsiPassThruProtocolGuid ## BY_START
gEfiPciIoProtocolGuid ## TO_START
OvmfPkg/PvScsiDxe: Report the number of targets and LUNs Implement EXT_SCSI_PASS_THRU.GetNextTarget() and EXT_SCSI_PASS_THRU.GetNextTargetLun(). ScsiBusDxe scans all MaxTarget * MaxLun possible devices. This can take unnecessarily long for large number of targets. To deal with this, VirtioScsiDxe has defined PCDs to limit the MaxTarget & MaxLun to desired values which gives sufficient performance. It is very important in virtio-scsi as it can have very big MaxTarget & MaxLun. Even though a common PVSCSI device has a default MaxTarget=64 and MaxLun=0, we implement similar mechanism as virtio-scsi for completeness. This may be useful in the future when PVSCSI will have bigger values for MaxTarget and MaxLun. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-7-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
2020-03-28 21:00:49 +01:00
[Pcd]
OvmfPkg/PvScsiDxe: Support sending SCSI request and receive response Implement EXT_SCSI_PASS_THRU.PassThru(). Machines should be able to boot after this commit. Tested with Ubuntu 16.04 guest. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-16-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2020-03-28 21:00:58 +01:00
gUefiOvmfPkgTokenSpaceGuid.PcdPvScsiMaxLunLimit ## CONSUMES
gUefiOvmfPkgTokenSpaceGuid.PcdPvScsiMaxTargetLimit ## CONSUMES
gUefiOvmfPkgTokenSpaceGuid.PcdPvScsiWaitForCmpStallInUsecs ## CONSUMES