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| author | Hao Wu <hao.a.wu@intel.com> | 2018-05-02 14:12:12 +0800 |
|---|---|---|
| committer | Hao Wu <hao.a.wu@intel.com> | 2018-06-25 09:13:12 +0800 |
| commit | 508acb5f6c29d86b266ea2412b3cfb8fce278a07 (patch) | |
| tree | d16ecc15b48c3183e13045f131ed88c3b569d3f2 /MdeModulePkg/Include | |
| parent | cc0d998b8ba08819f7a7e18219d95ba3b6aba81f (diff) | |
| download | edk2-508acb5f6c29d86b266ea2412b3cfb8fce278a07.zip edk2-508acb5f6c29d86b266ea2412b3cfb8fce278a07.tar.gz edk2-508acb5f6c29d86b266ea2412b3cfb8fce278a07.tar.bz2 | |
MdeModulePkg: Add definitions for EDKII PEI NVME host controller PPI
Introduces the below PPI:
struct EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI {
EDKII_NVM_EXPRESS_HC_GET_MMIO_BAR GetNvmeHcMmioBar;
EDKII_NVM_EXPRESS_HC_GET_DEVICE_PATH GetNvmeHcDevicePath;
};
The GetNvmeHcMmioBar service will provide the caller with the MMIO BAR
address of each NVMe HC within the system;
The GetNvmeHcDevicePath service will provide the caller with the device
path information of each NVMe HC.
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Diffstat (limited to 'MdeModulePkg/Include')
| -rw-r--r-- | MdeModulePkg/Include/Ppi/NvmExpressHostController.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/MdeModulePkg/Include/Ppi/NvmExpressHostController.h b/MdeModulePkg/Include/Ppi/NvmExpressHostController.h new file mode 100644 index 0000000..3e22f50 --- /dev/null +++ b/MdeModulePkg/Include/Ppi/NvmExpressHostController.h @@ -0,0 +1,92 @@ +/** @file
+
+ Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI_H_
+#define _EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI_H_
+
+#include <Protocol/DevicePath.h>
+
+///
+/// Global ID for the EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI.
+///
+#define EDKII_NVME_EXPRESS_HOST_CONTROLLER_PPI_GUID \
+ { \
+ 0xcae3aa63, 0x676f, 0x4da3, { 0xbd, 0x50, 0x6c, 0xc5, 0xed, 0xde, 0x9a, 0xad } \
+ }
+
+//
+// Forward declaration for the EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI.
+//
+typedef struct _EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI;
+
+/**
+ Get the MMIO base address of NVM Express host controller.
+
+ @param[in] This The PPI instance pointer.
+ @param[in] ControllerId The ID of the NVM Express host controller.
+ @param[out] MmioBar The MMIO base address of the controller.
+
+ @retval EFI_SUCCESS The operation succeeds.
+ @retval EFI_INVALID_PARAMETER The parameters are invalid.
+ @retval EFI_NOT_FOUND The specified NVM Express host controller not
+ found.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_NVM_EXPRESS_HC_GET_MMIO_BAR) (
+ IN EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI *This,
+ IN UINT8 ControllerId,
+ OUT UINTN *MmioBar
+ );
+
+/**
+ Get the device path of NVM Express host controller.
+
+ @param[in] This The PPI instance pointer.
+ @param[in] ControllerId The ID of the NVM Express host controller.
+ @param[out] DevicePathLength The length of the device path in bytes specified
+ by DevicePath.
+ @param[out] DevicePath The device path of NVM Express host controller.
+ This field re-uses EFI Device Path Protocol as
+ defined by Section 10.2 EFI Device Path Protocol
+ of UEFI 2.7 Specification.
+
+ @retval EFI_SUCCESS The operation succeeds.
+ @retval EFI_INVALID_PARAMETER The parameters are invalid.
+ @retval EFI_NOT_FOUND The specified NVM Express host controller not
+ found.
+ @retval EFI_OUT_OF_RESOURCES The operation fails due to lack of resources.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_NVM_EXPRESS_HC_GET_DEVICE_PATH) (
+ IN EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI *This,
+ IN UINT8 ControllerId,
+ OUT UINTN *DevicePathLength,
+ OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
+ );
+
+//
+// This PPI contains a set of services to interact with the NVM Express host
+// controller.
+//
+struct _EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI {
+ EDKII_NVM_EXPRESS_HC_GET_MMIO_BAR GetNvmeHcMmioBar;
+ EDKII_NVM_EXPRESS_HC_GET_DEVICE_PATH GetNvmeHcDevicePath;
+};
+
+extern EFI_GUID gEdkiiPeiNvmExpressHostControllerPpiGuid;
+
+#endif
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