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b8b69433 HW |
1 | /** @file\r |
2 | The NvmExpressPei driver is used to manage non-volatile memory subsystem\r | |
3 | which follows NVM Express specification at PEI phase.\r | |
4 | \r | |
ba3aa1c4 | 5 | Copyright (c) 2018 - 2019, Intel Corporation. All rights reserved.<BR>\r |
b8b69433 | 6 | \r |
9d510e61 | 7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
b8b69433 HW |
8 | \r |
9 | **/\r | |
10 | \r | |
11 | #ifndef _NVM_EXPRESS_PEI_PASSTHRU_H_\r | |
12 | #define _NVM_EXPRESS_PEI_PASSTHRU_H_\r | |
13 | \r | |
b8b69433 HW |
14 | /**\r |
15 | Sends an NVM Express Command Packet to an NVM Express controller or namespace. This function only\r | |
16 | supports blocking execution of the command.\r | |
17 | \r | |
18 | @param[in] Private The pointer to the NVME_CONTEXT Data structure.\r | |
19 | @param[in] NamespaceId Is a 32 bit Namespace ID to which the Express HCI command packet will\r | |
20 | be sent.\r | |
21 | A Value of 0 denotes the NVM Express controller, a Value of all 0FFh in\r | |
22 | the namespace ID specifies that the command packet should be sent to all\r | |
23 | valid namespaces.\r | |
24 | @param[in,out] Packet A pointer to the EDKII PEI NVM Express PassThru Command Packet to send\r | |
25 | to the NVMe namespace specified by NamespaceId.\r | |
26 | \r | |
27 | @retval EFI_SUCCESS The EDKII PEI NVM Express Command Packet was sent by the host.\r | |
28 | TransferLength bytes were transferred to, or from DataBuffer.\r | |
29 | @retval EFI_NOT_READY The EDKII PEI NVM Express Command Packet could not be sent because\r | |
30 | the controller is not ready. The caller may retry again later.\r | |
31 | @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the EDKII PEI NVM\r | |
32 | Express Command Packet.\r | |
33 | @retval EFI_INVALID_PARAMETER Namespace, or the contents of EDKII_PEI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET\r | |
34 | are invalid.\r | |
35 | The EDKII PEI NVM Express Command Packet was not sent, so no\r | |
36 | additional status information is available.\r | |
37 | @retval EFI_UNSUPPORTED The command described by the EDKII PEI NVM Express Command Packet\r | |
38 | is not supported by the host adapter.\r | |
39 | The EDKII PEI NVM Express Command Packet was not sent, so no\r | |
40 | additional status information is available.\r | |
41 | @retval EFI_TIMEOUT A timeout occurred while waiting for the EDKII PEI NVM Express Command\r | |
42 | Packet to execute.\r | |
43 | \r | |
44 | **/\r | |
45 | EFI_STATUS\r | |
ba3aa1c4 | 46 | NvmePassThruExecute (\r |
1436aea4 MK |
47 | IN PEI_NVME_CONTROLLER_PRIVATE_DATA *Private,\r |
48 | IN UINT32 NamespaceId,\r | |
49 | IN OUT EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET *Packet\r | |
ba3aa1c4 MC |
50 | );\r |
51 | \r | |
52 | /**\r | |
53 | Gets the device path information of the underlying NVM Express host controller.\r | |
54 | \r | |
55 | @param[in] This The PPI instance pointer.\r | |
56 | @param[out] DevicePathLength The length of the device path in bytes specified\r | |
57 | by DevicePath.\r | |
58 | @param[out] DevicePath The device path of the underlying NVM Express\r | |
59 | host controller.\r | |
60 | This field re-uses EFI Device Path Protocol as\r | |
61 | defined by Section 10.2 EFI Device Path Protocol\r | |
62 | of UEFI 2.7 Specification.\r | |
63 | \r | |
64 | @retval EFI_SUCCESS The operation succeeds.\r | |
65 | @retval EFI_INVALID_PARAMETER DevicePathLength or DevicePath is NULL.\r | |
66 | @retval EFI_OUT_OF_RESOURCES The operation fails due to lack of resources.\r | |
67 | \r | |
68 | **/\r | |
69 | EFI_STATUS\r | |
70 | EFIAPI\r | |
71 | NvmePassThruGetDevicePath (\r | |
1436aea4 MK |
72 | IN EDKII_PEI_NVM_EXPRESS_PASS_THRU_PPI *This,\r |
73 | OUT UINTN *DevicePathLength,\r | |
74 | OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r | |
ba3aa1c4 MC |
75 | );\r |
76 | \r | |
77 | /**\r | |
78 | Used to retrieve the next namespace ID for this NVM Express controller.\r | |
79 | \r | |
80 | If on input the value pointed to by NamespaceId is 0xFFFFFFFF, then the first\r | |
81 | valid namespace ID defined on the NVM Express controller is returned in the\r | |
82 | location pointed to by NamespaceId and a status of EFI_SUCCESS is returned.\r | |
83 | \r | |
84 | If on input the value pointed to by NamespaceId is an invalid namespace ID\r | |
85 | other than 0xFFFFFFFF, then EFI_INVALID_PARAMETER is returned.\r | |
86 | \r | |
87 | If on input the value pointed to by NamespaceId is a valid namespace ID, then\r | |
88 | the next valid namespace ID on the NVM Express controller is returned in the\r | |
89 | location pointed to by NamespaceId, and EFI_SUCCESS is returned.\r | |
90 | \r | |
91 | If the value pointed to by NamespaceId is the namespace ID of the last\r | |
92 | namespace on the NVM Express controller, then EFI_NOT_FOUND is returned.\r | |
93 | \r | |
94 | @param[in] This The PPI instance pointer.\r | |
95 | @param[in,out] NamespaceId On input, a pointer to a legal NamespaceId\r | |
96 | for an NVM Express namespace present on the\r | |
97 | NVM Express controller. On output, a pointer\r | |
98 | to the next NamespaceId of an NVM Express\r | |
99 | namespace on an NVM Express controller. An\r | |
100 | input value of 0xFFFFFFFF retrieves the\r | |
101 | first NamespaceId for an NVM Express\r | |
102 | namespace present on an NVM Express\r | |
103 | controller.\r | |
104 | \r | |
105 | @retval EFI_SUCCESS The Namespace ID of the next Namespace was\r | |
106 | returned.\r | |
107 | @retval EFI_NOT_FOUND There are no more namespaces defined on this\r | |
108 | controller.\r | |
109 | @retval EFI_INVALID_PARAMETER NamespaceId is an invalid value other than\r | |
110 | 0xFFFFFFFF.\r | |
111 | \r | |
112 | **/\r | |
113 | EFI_STATUS\r | |
114 | EFIAPI\r | |
115 | NvmePassThruGetNextNameSpace (\r | |
1436aea4 MK |
116 | IN EDKII_PEI_NVM_EXPRESS_PASS_THRU_PPI *This,\r |
117 | IN OUT UINT32 *NamespaceId\r | |
ba3aa1c4 MC |
118 | );\r |
119 | \r | |
120 | /**\r | |
121 | Sends an NVM Express Command Packet to an NVM Express controller or namespace. This function only\r | |
122 | supports blocking execution of the command.\r | |
123 | \r | |
124 | @param[in] This The PPI instance pointer.\r | |
125 | @param[in] NamespaceId Is a 32 bit Namespace ID to which the Nvm Express command packet will\r | |
126 | be sent.\r | |
127 | A Value of 0 denotes the NVM Express controller, a Value of all 0FFh in\r | |
128 | the namespace ID specifies that the command packet should be sent to all\r | |
129 | valid namespaces.\r | |
130 | @param[in,out] Packet A pointer to the EDKII PEI NVM Express PassThru Command Packet to send\r | |
131 | to the NVMe namespace specified by NamespaceId.\r | |
132 | \r | |
133 | @retval EFI_SUCCESS The EDKII PEI NVM Express Command Packet was sent by the host.\r | |
134 | TransferLength bytes were transferred to, or from DataBuffer.\r | |
135 | @retval EFI_NOT_READY The EDKII PEI NVM Express Command Packet could not be sent because\r | |
136 | the controller is not ready. The caller may retry again later.\r | |
137 | @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the EDKII PEI NVM\r | |
138 | Express Command Packet.\r | |
139 | @retval EFI_INVALID_PARAMETER Namespace, or the contents of EDKII_PEI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET\r | |
140 | are invalid.\r | |
141 | The EDKII PEI NVM Express Command Packet was not sent, so no\r | |
142 | additional status information is available.\r | |
143 | @retval EFI_UNSUPPORTED The command described by the EDKII PEI NVM Express Command Packet\r | |
144 | is not supported by the host adapter.\r | |
145 | The EDKII PEI NVM Express Command Packet was not sent, so no\r | |
146 | additional status information is available.\r | |
147 | @retval EFI_TIMEOUT A timeout occurred while waiting for the EDKII PEI NVM Express Command\r | |
148 | Packet to execute.\r | |
149 | \r | |
150 | **/\r | |
151 | EFI_STATUS\r | |
152 | EFIAPI\r | |
153 | NvmePassThru (\r | |
1436aea4 MK |
154 | IN EDKII_PEI_NVM_EXPRESS_PASS_THRU_PPI *This,\r |
155 | IN UINT32 NamespaceId,\r | |
156 | IN OUT EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET *Packet\r | |
b8b69433 HW |
157 | );\r |
158 | \r | |
159 | #endif\r |