Signed-off-by: Abner Chang <abner.chang@hpe.com>

Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Siyuan Fu <siyuan.fu@intel.com>
Cc: Fan Wang <fan.wang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Nickle Wang <nickle.wang@hpe.com>
---
 .../Include/Library/RedfishHostInterfaceLib.h | 52 +++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 RedfishPkg/Include/Library/RedfishHostInterfaceLib.h

diff --git a/RedfishPkg/Include/Library/RedfishHostInterfaceLib.h b/RedfishPkg/Include/Library/RedfishHostInterfaceLib.h
new file mode 100644
index 0000000000..870109e09a
--- /dev/null
+++ b/RedfishPkg/Include/Library/RedfishHostInterfaceLib.h
@@ -0,0 +1,52 @@
+/** @file
+  Definitinos of RedfishHostInterfaceDxe driver.
+
+  (C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#ifndef REDFISH_HOST_INTERFACE_LIB_H_
+#define REDFISH_HOST_INTERFACE_LIB_H_
+
+#include <Uefi.h>
+#include <IndustryStandard/RedfishHostInterface.h>
+#include <IndustryStandard/SmBios.h>
+
+#include <Protocol/Smbios.h>
+
+/**
+  Get platform Redfish host interface device descriptor.
+
+  @param[out] DeviceType        Pointer to retrieve device type.
+  @param[out] DeviceDescriptor  Pointer to retrieve REDFISH_INTERFACE_DATA, caller has to free
+                                this memory using FreePool().
+  @retval EFI_SUCCESS     Device descriptor is returned successfully in DeviceDescriptor.
+  @retval EFI_NOT_FOUND   No Redfish host interface descriptor provided on this platform.
+  @retval Others          Fail to get device descriptor.
+**/
+EFI_STATUS
+RedfishPlatformHostInterfaceDeviceDescriptor (
+  IN UINT8 *DeviceType,
+  IN REDFISH_INTERFACE_DATA  **DeviceDescriptor
+);
+/**
+  Get platform Redfish host interface protocol data.
+  Caller should pass NULL in ProtocolRecord to retrive the first protocol record.
+  Then continuously pass previous ProtocolRecord for retrieving the next ProtocolRecord.
+
+  @param[in, out] ProtocolRecord  Pointer to retrieve the first or the next protocol record.
+                                  caller has to free the new protocol record returned from
+                                  this function using FreePool().
+  param[in] IndexOfProtocolData   The index of protocol data.
+
+  @retval EFI_SUCESS      Protocol records are all returned.
+  @retval EFI_NOT_FOUND   No more protocol records.
+  @retval Others          Fail to get protocol records.
+**/
+EFI_STATUS
+RedfishPlatformHostInterfaceProtocolData (
+  IN MC_HOST_INTERFACE_PROTOCOL_RECORD **ProtocolRecord,
+  IN UINT8  IndexOfProtocolData
+);
+#endif
-- 
2.17.1



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Hi Abner,

I found that the parameter is not defined as it is described in function header. Please check my comment inline below.

Thanks,
Nickle

> -----Original Message-----
> From: Chang, Abner (HPS SW/FW Technologist) <abner.chang@hpe.com>
> Sent: Tuesday, October 13, 2020 12:08 PM
> To: devel@edk2.groups.io
> Cc: Jiaxin Wu <jiaxin.wu@intel.com>; Siyuan Fu <siyuan.fu@intel.com>; Fan
> Wang <fan.wang@intel.com>; Jiewen Yao <jiewen.yao@intel.com>; Wang,
> Nickle (HPS SW) <nickle.wang@hpe.com>
> Subject: [EFI Redfish Host Interface PATCH 2/5] RedfishPkg/Include:
> PlatformHostInterfaceLib header file
> 
> Signed-off-by: Abner Chang <abner.chang@hpe.com>
> 
> Cc: Jiaxin Wu <jiaxin.wu@intel.com>
> Cc: Siyuan Fu <siyuan.fu@intel.com>
> Cc: Fan Wang <fan.wang@intel.com>
> Cc: Jiewen Yao <jiewen.yao@intel.com>
> Cc: Nickle Wang <nickle.wang@hpe.com>
> ---
>  .../Include/Library/RedfishHostInterfaceLib.h | 52 +++++++++++++++++++
>  1 file changed, 52 insertions(+)
>  create mode 100644 RedfishPkg/Include/Library/RedfishHostInterfaceLib.h
> 
> diff --git a/RedfishPkg/Include/Library/RedfishHostInterfaceLib.h
> b/RedfishPkg/Include/Library/RedfishHostInterfaceLib.h
> new file mode 100644
> index 0000000000..870109e09a
> --- /dev/null
> +++ b/RedfishPkg/Include/Library/RedfishHostInterfaceLib.h
> @@ -0,0 +1,52 @@
> +/** @file
> +  Definitinos of RedfishHostInterfaceDxe driver.
> +
> +  (C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
> +
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +#ifndef REDFISH_HOST_INTERFACE_LIB_H_
> +#define REDFISH_HOST_INTERFACE_LIB_H_
> +
> +#include <Uefi.h>
> +#include <IndustryStandard/RedfishHostInterface.h>
> +#include <IndustryStandard/SmBios.h>
> +
> +#include <Protocol/Smbios.h>
> +
> +/**
> +  Get platform Redfish host interface device descriptor.
> +
> +  @param[out] DeviceType        Pointer to retrieve device type.
> +  @param[out] DeviceDescriptor  Pointer to retrieve
> REDFISH_INTERFACE_DATA, caller has to free
> +                                this memory using FreePool().
> +  @retval EFI_SUCCESS     Device descriptor is returned successfully in
> DeviceDescriptor.
> +  @retval EFI_NOT_FOUND   No Redfish host interface descriptor provided
> on this platform.
> +  @retval Others          Fail to get device descriptor.
> +**/
> +EFI_STATUS
> +RedfishPlatformHostInterfaceDeviceDescriptor (
> +  IN UINT8 *DeviceType,
> +  IN REDFISH_INTERFACE_DATA  **DeviceDescriptor
In the function header, they are OUT parameter but they are defined as IN here.

> +);
> +/**
> +  Get platform Redfish host interface protocol data.
> +  Caller should pass NULL in ProtocolRecord to retrive the first protocol
> record.
> +  Then continuously pass previous ProtocolRecord for retrieving the next
> ProtocolRecord.
> +
> +  @param[in, out] ProtocolRecord  Pointer to retrieve the first or the next
> protocol record.
> +                                  caller has to free the new protocol record returned from
> +                                  this function using FreePool().
> +  param[in] IndexOfProtocolData   The index of protocol data.
> +
> +  @retval EFI_SUCESS      Protocol records are all returned.
> +  @retval EFI_NOT_FOUND   No more protocol records.
> +  @retval Others          Fail to get protocol records.
> +**/
> +EFI_STATUS
> +RedfishPlatformHostInterfaceProtocolData (
> +  IN MC_HOST_INTERFACE_PROTOCOL_RECORD **ProtocolRecord,
This is IN and OUT, right? If not, the function header needs modification.

> +  IN UINT8  IndexOfProtocolData
> +);
> +#endif
> --
> 2.17.1



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