938430741f
Host Interface details are described by the SMBIOS Type 42 table. The table is published by the RedfishHostInterfaceDxe driver. That driver supports PCI-E and USB host interface types.The table is consumed by the edfishGetHostInterfaceProtocolData function in the RedfishDiscoverDxe driver. The function only supports PCI-E host interface type. Cc: Abner Chang <abner.chang@amd.com> Cc: Nickle Wang <nickle.wang@hpe.com> Signed-off-by: Igor Kulchytskyy <igork@ami.com> Reviewed-by: Abner Chang <abner.chang@amd.com>
126 lines
4.2 KiB
C
126 lines
4.2 KiB
C
/** @file
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RedfishSmbiosHostInterface.c
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Discover Redfish SMBIOS Host Interface.
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(C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "RedfishDiscoverInternal.h"
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SMBIOS_TABLE_TYPE42 *mType42Record;
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/**
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The function gets information reported in Redfish Host Interface.
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It simply frees the packet.
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@param[in] Smbios SMBIOS protocol.
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@param[out] DeviceDescriptor Pointer to REDFISH_INTERFACE_DATA.
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@param[out] ProtocolData Pointer to REDFISH_OVER_IP_PROTOCOL_DATA.
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@retval EFI_SUCCESS Get host interface succesfully.
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@retval Otherwise Fail to tet host interface.
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**/
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EFI_STATUS
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RedfishGetHostInterfaceProtocolData (
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IN EFI_SMBIOS_PROTOCOL *Smbios,
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OUT REDFISH_INTERFACE_DATA **DeviceDescriptor,
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OUT REDFISH_OVER_IP_PROTOCOL_DATA **ProtocolData
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)
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{
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EFI_STATUS Status;
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EFI_SMBIOS_HANDLE SmbiosHandle;
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EFI_SMBIOS_TABLE_HEADER *Record;
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UINT16 Offset;
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UINT8 *RecordTmp;
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UINT8 ProtocolLength;
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UINT8 SpecificDataLen;
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if ((Smbios == NULL) || (ProtocolData == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
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Status = Smbios->GetNext (Smbios, &SmbiosHandle, NULL, &Record, NULL);
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while (!EFI_ERROR (Status) && SmbiosHandle != SMBIOS_HANDLE_PI_RESERVED) {
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if (Record->Type == SMBIOS_TYPE_MANAGEMENT_CONTROLLER_HOST_INTERFACE) {
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//
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// Check Interface Type, should be Network Host Interface = 40h
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//
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mType42Record = (SMBIOS_TABLE_TYPE42 *)Record;
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if (mType42Record->InterfaceType == MCHostInterfaceTypeNetworkHostInterface) {
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ASSERT (Record->Length >= 9);
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Offset = 5;
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RecordTmp = (UINT8 *)Record + Offset;
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//
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// Get interface specific data length.
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//
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SpecificDataLen = *RecordTmp;
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Offset += 1;
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RecordTmp = (UINT8 *)Record + Offset;
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//
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// Check Device Type, PCI/PCIe and USB Network Interface v2 is supported.
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//
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if ((*RecordTmp == REDFISH_HOST_INTERFACE_DEVICE_TYPE_PCI_PCIE_V2) || (*RecordTmp == REDFISH_HOST_INTERFACE_DEVICE_TYPE_USB_V2)) {
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if (*RecordTmp == REDFISH_HOST_INTERFACE_DEVICE_TYPE_PCI_PCIE_V2) {
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ASSERT (SpecificDataLen == sizeof (PCI_OR_PCIE_INTERFACE_DEVICE_DESCRIPTOR_V2) + 1);
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} else {
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ASSERT (SpecificDataLen > sizeof (REDFISH_HOST_INTERFACE_DEVICE_TYPE_USB_V2) + 1);
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}
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*DeviceDescriptor = (REDFISH_INTERFACE_DATA *)RecordTmp;
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Offset = Offset + SpecificDataLen;
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RecordTmp = (UINT8 *)Record + Offset;
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//
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// Check Protocol count. if > 1, only use the first protocol.
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//
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ASSERT (*RecordTmp == 1);
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Offset += 1;
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RecordTmp = (UINT8 *)Record + Offset;
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//
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// Check protocol identifier.
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//
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if (*RecordTmp == MCHostInterfaceProtocolTypeRedfishOverIP) {
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Offset += 1;
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RecordTmp = (UINT8 *)Record + Offset;
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ProtocolLength = *RecordTmp;
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Offset += 1;
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RecordTmp = (UINT8 *)Record + Offset;
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//
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// This SMBIOS record is invalid, if the length of protocol specific data for
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// Redfish Over IP protocol is wrong.
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//
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if ((*(RecordTmp + 90) + sizeof (REDFISH_OVER_IP_PROTOCOL_DATA) - 1) != ProtocolLength) {
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return EFI_SECURITY_VIOLATION;
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}
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Offset += ProtocolLength;
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//
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// This SMBIOS record is invalid, if the length is smaller than the offset.
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//
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if (Offset > mType42Record->Hdr.Length) {
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return EFI_SECURITY_VIOLATION;
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}
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*ProtocolData = (REDFISH_OVER_IP_PROTOCOL_DATA *)RecordTmp;
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return EFI_SUCCESS;
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}
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}
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}
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}
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Status = Smbios->GetNext (Smbios, &SmbiosHandle, NULL, &Record, NULL);
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}
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*ProtocolData = NULL;
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return EFI_NOT_FOUND;
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}
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