diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/MdeModulePkg/Bus/Pci/NvmExpressPei/NvmExpressPeiPassThru.h | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/MdeModulePkg/Bus/Pci/NvmExpressPei/NvmExpressPeiPassThru.h')
| -rw-r--r-- | roms/edk2/MdeModulePkg/Bus/Pci/NvmExpressPei/NvmExpressPeiPassThru.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/roms/edk2/MdeModulePkg/Bus/Pci/NvmExpressPei/NvmExpressPeiPassThru.h b/roms/edk2/MdeModulePkg/Bus/Pci/NvmExpressPei/NvmExpressPeiPassThru.h new file mode 100644 index 000000000..00e8f0abd --- /dev/null +++ b/roms/edk2/MdeModulePkg/Bus/Pci/NvmExpressPei/NvmExpressPeiPassThru.h @@ -0,0 +1,161 @@ +/** @file
+ The NvmExpressPei driver is used to manage non-volatile memory subsystem
+ which follows NVM Express specification at PEI phase.
+
+ Copyright (c) 2018 - 2019, Intel Corporation. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _NVM_EXPRESS_PEI_PASSTHRU_H_
+#define _NVM_EXPRESS_PEI_PASSTHRU_H_
+
+
+
+/**
+ Sends an NVM Express Command Packet to an NVM Express controller or namespace. This function only
+ supports blocking execution of the command.
+
+ @param[in] Private The pointer to the NVME_CONTEXT Data structure.
+ @param[in] NamespaceId Is a 32 bit Namespace ID to which the Express HCI command packet will
+ be sent.
+ A Value of 0 denotes the NVM Express controller, a Value of all 0FFh in
+ the namespace ID specifies that the command packet should be sent to all
+ valid namespaces.
+ @param[in,out] Packet A pointer to the EDKII PEI NVM Express PassThru Command Packet to send
+ to the NVMe namespace specified by NamespaceId.
+
+ @retval EFI_SUCCESS The EDKII PEI NVM Express Command Packet was sent by the host.
+ TransferLength bytes were transferred to, or from DataBuffer.
+ @retval EFI_NOT_READY The EDKII PEI NVM Express Command Packet could not be sent because
+ the controller is not ready. The caller may retry again later.
+ @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the EDKII PEI NVM
+ Express Command Packet.
+ @retval EFI_INVALID_PARAMETER Namespace, or the contents of EDKII_PEI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET
+ are invalid.
+ The EDKII PEI NVM Express Command Packet was not sent, so no
+ additional status information is available.
+ @retval EFI_UNSUPPORTED The command described by the EDKII PEI NVM Express Command Packet
+ is not supported by the host adapter.
+ The EDKII PEI NVM Express Command Packet was not sent, so no
+ additional status information is available.
+ @retval EFI_TIMEOUT A timeout occurred while waiting for the EDKII PEI NVM Express Command
+ Packet to execute.
+
+**/
+EFI_STATUS
+NvmePassThruExecute (
+ IN PEI_NVME_CONTROLLER_PRIVATE_DATA *Private,
+ IN UINT32 NamespaceId,
+ IN OUT EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET *Packet
+ );
+
+/**
+ Gets the device path information of the underlying NVM Express host controller.
+
+ @param[in] This The PPI instance pointer.
+ @param[out] DevicePathLength The length of the device path in bytes specified
+ by DevicePath.
+ @param[out] DevicePath The device path of the underlying 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 DevicePathLength or DevicePath is NULL.
+ @retval EFI_OUT_OF_RESOURCES The operation fails due to lack of resources.
+
+**/
+EFI_STATUS
+EFIAPI
+NvmePassThruGetDevicePath (
+ IN EDKII_PEI_NVM_EXPRESS_PASS_THRU_PPI *This,
+ OUT UINTN *DevicePathLength,
+ OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
+ );
+
+/**
+ Used to retrieve the next namespace ID for this NVM Express controller.
+
+ If on input the value pointed to by NamespaceId is 0xFFFFFFFF, then the first
+ valid namespace ID defined on the NVM Express controller is returned in the
+ location pointed to by NamespaceId and a status of EFI_SUCCESS is returned.
+
+ If on input the value pointed to by NamespaceId is an invalid namespace ID
+ other than 0xFFFFFFFF, then EFI_INVALID_PARAMETER is returned.
+
+ If on input the value pointed to by NamespaceId is a valid namespace ID, then
+ the next valid namespace ID on the NVM Express controller is returned in the
+ location pointed to by NamespaceId, and EFI_SUCCESS is returned.
+
+ If the value pointed to by NamespaceId is the namespace ID of the last
+ namespace on the NVM Express controller, then EFI_NOT_FOUND is returned.
+
+ @param[in] This The PPI instance pointer.
+ @param[in,out] NamespaceId On input, a pointer to a legal NamespaceId
+ for an NVM Express namespace present on the
+ NVM Express controller. On output, a pointer
+ to the next NamespaceId of an NVM Express
+ namespace on an NVM Express controller. An
+ input value of 0xFFFFFFFF retrieves the
+ first NamespaceId for an NVM Express
+ namespace present on an NVM Express
+ controller.
+
+ @retval EFI_SUCCESS The Namespace ID of the next Namespace was
+ returned.
+ @retval EFI_NOT_FOUND There are no more namespaces defined on this
+ controller.
+ @retval EFI_INVALID_PARAMETER NamespaceId is an invalid value other than
+ 0xFFFFFFFF.
+
+**/
+EFI_STATUS
+EFIAPI
+NvmePassThruGetNextNameSpace (
+ IN EDKII_PEI_NVM_EXPRESS_PASS_THRU_PPI *This,
+ IN OUT UINT32 *NamespaceId
+ );
+
+/**
+ Sends an NVM Express Command Packet to an NVM Express controller or namespace. This function only
+ supports blocking execution of the command.
+
+ @param[in] This The PPI instance pointer.
+ @param[in] NamespaceId Is a 32 bit Namespace ID to which the Nvm Express command packet will
+ be sent.
+ A Value of 0 denotes the NVM Express controller, a Value of all 0FFh in
+ the namespace ID specifies that the command packet should be sent to all
+ valid namespaces.
+ @param[in,out] Packet A pointer to the EDKII PEI NVM Express PassThru Command Packet to send
+ to the NVMe namespace specified by NamespaceId.
+
+ @retval EFI_SUCCESS The EDKII PEI NVM Express Command Packet was sent by the host.
+ TransferLength bytes were transferred to, or from DataBuffer.
+ @retval EFI_NOT_READY The EDKII PEI NVM Express Command Packet could not be sent because
+ the controller is not ready. The caller may retry again later.
+ @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the EDKII PEI NVM
+ Express Command Packet.
+ @retval EFI_INVALID_PARAMETER Namespace, or the contents of EDKII_PEI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET
+ are invalid.
+ The EDKII PEI NVM Express Command Packet was not sent, so no
+ additional status information is available.
+ @retval EFI_UNSUPPORTED The command described by the EDKII PEI NVM Express Command Packet
+ is not supported by the host adapter.
+ The EDKII PEI NVM Express Command Packet was not sent, so no
+ additional status information is available.
+ @retval EFI_TIMEOUT A timeout occurred while waiting for the EDKII PEI NVM Express Command
+ Packet to execute.
+
+**/
+EFI_STATUS
+EFIAPI
+NvmePassThru (
+ IN EDKII_PEI_NVM_EXPRESS_PASS_THRU_PPI *This,
+ IN UINT32 NamespaceId,
+ IN OUT EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET *Packet
+ );
+
+#endif
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