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242 lines
12 KiB
C
242 lines
12 KiB
C
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/** @file
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EFI Driver Health Protocol definitions.
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When installed, the Driver Health Protocol produces a collection of services that allow
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the health status for a controller to be retrieved. If a controller is not in a usable
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state, status messages may be reported to the user, repair operations can be invoked,
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and the user may be asked to make software and/or hardware configuration changes.
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The Driver Health Protocol is optionally produced by a driver that follows the
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EFI Driver Model. If an EFI Driver needs to report health status to the platform,
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provide warning or error messages to the user, perform length repair operations,
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or request the user to make hardware or software configuration changes, then the
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Driver Health Protocol must be produced.
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A controller that is managed by driver that follows the EFI Driver Model and
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produces the Driver Health Protocol must report the current health of the
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controllers that the driver is currently managing. The controller can initially
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be healthy, failed, require repair, or require configuration. If a controller
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requires configuration, and the user make configuration changes, the controller
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may then need to be reconnected or the system may need to be rebooted for the
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configuration changes to take affect.
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Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2014, Hewlett-Packard Development Company, L.P.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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@par Revision Reference:
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This Protocol is defined in UEFI Specification 2.3d
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**/
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#ifndef __EFI_DRIVER_HEALTH_H__
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#define __EFI_DRIVER_HEALTH_H__
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#define EFI_DRIVER_HEALTH_PROTOCOL_GUID \
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{ \
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0x2a534210, 0x9280, 0x41d8, { 0xae, 0x79, 0xca, 0xda, 0x1, 0xa2, 0xb1, 0x27 } \
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}
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typedef struct _EFI_DRIVER_HEALTH_PROTOCOL EFI_DRIVER_HEALTH_PROTOCOL;
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///
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/// EFI_DRIVER_HEALTH_HEALTH_STATUS
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///
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typedef enum {
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EfiDriverHealthStatusHealthy,
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EfiDriverHealthStatusRepairRequired,
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EfiDriverHealthStatusConfigurationRequired,
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EfiDriverHealthStatusFailed,
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EfiDriverHealthStatusReconnectRequired,
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EfiDriverHealthStatusRebootRequired
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} EFI_DRIVER_HEALTH_STATUS;
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///
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/// EFI_DRIVER_HEALTH_HII_MESSAGE
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///
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typedef struct {
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EFI_HII_HANDLE HiiHandle;
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EFI_STRING_ID StringId;
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///
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/// 64-bit numeric value of the warning/error specified by this message.
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/// A value of 0x0000000000000000 is used to indicate that MessageCode is not specified.
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/// The values 0x0000000000000001 to 0x0fffffffffffffff are reserved for allocation by the UEFI Specification.
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/// The values 0x1000000000000000 to 0x1fffffffffffffff are reserved for IHV-developed drivers.
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/// The values 0x8000000000000000 to 0x8fffffffffffffff is reserved for platform/OEM drivers.
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/// All other values are reserved and should not be used.
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///
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UINT64 MessageCode;
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} EFI_DRIVER_HEALTH_HII_MESSAGE;
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/**
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Reports the progress of a repair operation
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@param[in] Value A value between 0 and Limit that identifies the current
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progress of the repair operation.
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@param[in] Limit The maximum value of Value for the current repair operation.
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For example, a driver that wants to specify progress in
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percent would use a Limit value of 100.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_DRIVER_HEALTH_REPAIR_NOTIFY)(
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IN UINTN Value,
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IN UINTN Limit
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);
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/**
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Retrieves the health status of a controller in the platform. This function can also
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optionally return warning messages, error messages, and a set of HII Forms that may
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be repair a controller that is not proper configured.
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@param[in] This A pointer to the EFI_DRIVER_HEALTH_PROTOCOL instance.
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@param[in] ControllerHandle The handle of the controller to retrieve the health status
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on. This is an optional parameter that may be NULL. If
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this parameter is NULL, then the value of ChildHandle is
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ignored, and the combined health status of all the devices
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that the driver is managing is returned.
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@param[in] ChildHandle The handle of the child controller to retrieve the health
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status on. This is an optional parameter that may be NULL.
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This parameter is ignored of ControllerHandle is NULL. It
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will be NULL for device drivers. It will also be NULL for
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bus drivers when an attempt is made to collect the health
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status of the bus controller. If will not be NULL when an
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attempt is made to collect the health status for a child
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controller produced by the driver.
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@param[out] HealthStatus A pointer to the health status that is returned by this
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function. This is an optional parameter that may be NULL.
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This parameter is ignored of ControllerHandle is NULL.
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The health status for the controller specified by
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ControllerHandle and ChildHandle is returned.
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@param[out] MessageList A pointer to an array of warning or error messages associated
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with the controller specified by ControllerHandle and
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ChildHandle. This is an optional parameter that may be NULL.
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MessageList is allocated by this function with the EFI Boot
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Service AllocatePool(), and it is the caller's responsibility
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to free MessageList with the EFI Boot Service FreePool().
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Each message is specified by tuple of an EFI_HII_HANDLE and
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an EFI_STRING_ID. The array of messages is terminated by tuple
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containing a EFI_HII_HANDLE with a value of NULL. The
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EFI_HII_STRING_PROTOCOL.GetString() function can be used to
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retrieve the warning or error message as a Null-terminated
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string in a specific language. Messages may be
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returned for any of the HealthStatus values except
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EfiDriverHealthStatusReconnectRequired and
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EfiDriverHealthStatusRebootRequired.
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@param[out] FormHiiHandle A pointer to the HII handle containing the HII form used when
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configuration is required. The HII handle is associated with
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the controller specified by ControllerHandle and ChildHandle.
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If this is NULL, then no HII form is available. An HII handle
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will only be returned with a HealthStatus value of
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EfiDriverHealthStatusConfigurationRequired.
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@retval EFI_SUCCESS ControllerHandle is NULL, and all the controllers
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managed by this driver specified by This have a health
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status of EfiDriverHealthStatusHealthy with no warning
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messages to be returned. The ChildHandle, HealthStatus,
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MessageList, and FormList parameters are ignored.
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@retval EFI_DEVICE_ERROR ControllerHandle is NULL, and one or more of the
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controllers managed by this driver specified by This
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do not have a health status of EfiDriverHealthStatusHealthy.
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The ChildHandle, HealthStatus, MessageList, and
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FormList parameters are ignored.
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@retval EFI_DEVICE_ERROR ControllerHandle is NULL, and one or more of the
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controllers managed by this driver specified by This
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have one or more warning and/or error messages.
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The ChildHandle, HealthStatus, MessageList, and
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FormList parameters are ignored.
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@retval EFI_SUCCESS ControllerHandle is not NULL and the health status
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of the controller specified by ControllerHandle and
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ChildHandle was returned in HealthStatus. A list
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of warning and error messages may be optionally
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returned in MessageList, and a list of HII Forms
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may be optionally returned in FormList.
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@retval EFI_UNSUPPORTED ControllerHandle is not NULL, and the controller
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specified by ControllerHandle and ChildHandle is not
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currently being managed by the driver specified by This.
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@retval EFI_INVALID_PARAMETER HealthStatus is NULL.
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@retval EFI_OUT_OF_RESOURCES MessageList is not NULL, and there are not enough
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resource available to allocate memory for MessageList.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_DRIVER_HEALTH_GET_HEALTH_STATUS)(
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IN EFI_DRIVER_HEALTH_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle OPTIONAL,
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IN EFI_HANDLE ChildHandle OPTIONAL,
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OUT EFI_DRIVER_HEALTH_STATUS *HealthStatus,
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OUT EFI_DRIVER_HEALTH_HII_MESSAGE **MessageList OPTIONAL,
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OUT EFI_HII_HANDLE *FormHiiHandle OPTIONAL
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);
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/**
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Performs a repair operation on a controller in the platform. This function can
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optionally report repair progress information back to the platform.
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@param[in] This A pointer to the EFI_DRIVER_HEALTH_PROTOCOL instance.
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@param[in] ControllerHandle The handle of the controller to repair.
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@param[in] ChildHandle The handle of the child controller to repair. This is
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an optional parameter that may be NULL. It will be NULL
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for device drivers. It will also be NULL for bus
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drivers when an attempt is made to repair a bus controller.
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If will not be NULL when an attempt is made to repair a
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child controller produced by the driver.
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@param[in] RepairNotify A notification function that may be used by a driver to
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report the progress of the repair operation. This is
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an optional parameter that may be NULL.
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@retval EFI_SUCCESS An attempt to repair the controller specified by
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ControllerHandle and ChildHandle was performed.
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The result of the repair operation can bet
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determined by calling GetHealthStatus().
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@retval EFI_UNSUPPORTED The driver specified by This is not currently
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managing the controller specified by ControllerHandle
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and ChildHandle.
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@retval EFI_OUT_OF_RESOURCES There are not enough resources to perform the
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repair operation.
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*/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_DRIVER_HEALTH_REPAIR)(
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IN EFI_DRIVER_HEALTH_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_HANDLE ChildHandle OPTIONAL,
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IN EFI_DRIVER_HEALTH_REPAIR_NOTIFY RepairNotify OPTIONAL
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);
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///
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/// When installed, the Driver Health Protocol produces a collection of services
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/// that allow the health status for a controller to be retrieved. If a controller
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/// is not in a usable state, status messages may be reported to the user, repair
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/// operations can be invoked, and the user may be asked to make software and/or
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/// hardware configuration changes.
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///
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struct _EFI_DRIVER_HEALTH_PROTOCOL {
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EFI_DRIVER_HEALTH_GET_HEALTH_STATUS GetHealthStatus;
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EFI_DRIVER_HEALTH_REPAIR Repair;
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};
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extern EFI_GUID gEfiDriverHealthProtocolGuid;
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#endif
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