projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 982388ea ZZ |
2 | /* |
| 3 | * Copyright (C) 2017 NXP Semiconductors | |
| 4 | * Copyright (C) 2017 Bin Meng <[email protected]> | |
| 982388ea ZZ |
5 | */ |
| 6 | ||
| 7 | #ifndef __NVME_H__ | |
| 8 | #define __NVME_H__ | |
| 9 | ||
| 10 | struct nvme_dev; | |
| 11 | ||
| 12 | /** | |
| 13 | * nvme_identify - identify controller or namespace capabilities and status | |
| 14 | * | |
| 15 | * This issues an identify command to the NVMe controller to return a data | |
| 16 | * buffer that describes the controller or namespace capabilities and status. | |
| 17 | * | |
| 18 | * @dev: NVMe controller device | |
| 19 | * @nsid: 0 for controller, namespace id for namespace to identify | |
| 20 | * @cns: 1 for controller, 0 for namespace | |
| 21 | * @dma_addr: dma buffer address to store the identify result | |
| 22 | * @return: 0 on success, -ETIMEDOUT on command execution timeout, | |
| 23 | * -EIO on command execution fails | |
| 24 | */ | |
| 25 | int nvme_identify(struct nvme_dev *dev, unsigned nsid, | |
| 26 | unsigned cns, dma_addr_t dma_addr); | |
| 27 | ||
| 28 | /** | |
| 29 | * nvme_get_features - retrieve the attributes of the feature specified | |
| 30 | * | |
| 31 | * This retrieves the attributes of the feature specified. | |
| 32 | * | |
| 33 | * @dev: NVMe controller device | |
| 34 | * @fid: feature id to provide data | |
| 35 | * @nsid: namespace id the command applies to | |
| 36 | * @dma_addr: data structure used as part of the specified feature | |
| 37 | * @result: command-specific result in the completion queue entry | |
| 38 | * @return: 0 on success, -ETIMEDOUT on command execution timeout, | |
| 39 | * -EIO on command execution fails | |
| 40 | */ | |
| 41 | int nvme_get_features(struct nvme_dev *dev, unsigned fid, unsigned nsid, | |
| 42 | dma_addr_t dma_addr, u32 *result); | |
| 43 | ||
| 44 | /** | |
| 45 | * nvme_set_features - specify the attributes of the feature indicated | |
| 46 | * | |
| 47 | * This specifies the attributes of the feature indicated. | |
| 48 | * | |
| 49 | * @dev: NVMe controller device | |
| 50 | * @fid: feature id to provide data | |
| 51 | * @dword11: command-specific input parameter | |
| 52 | * @dma_addr: data structure used as part of the specified feature | |
| 53 | * @result: command-specific result in the completion queue entry | |
| 54 | * @return: 0 on success, -ETIMEDOUT on command execution timeout, | |
| 55 | * -EIO on command execution fails | |
| 56 | */ | |
| 57 | int nvme_set_features(struct nvme_dev *dev, unsigned fid, unsigned dword11, | |
| 58 | dma_addr_t dma_addr, u32 *result); | |
| 59 | ||
| 60 | /** | |
| 61 | * nvme_scan_namespace - scan all namespaces attached to NVMe controllers | |
| 62 | * | |
| 63 | * This probes all registered NVMe uclass device drivers in the system, | |
| 64 | * and tries to find all namespaces attached to the NVMe controllers. | |
| 65 | * | |
| 66 | * @return: 0 on success, -ve on error | |
| 67 | */ | |
| 68 | int nvme_scan_namespace(void); | |
| 69 | ||
| f6aa61d5 ZZ |
70 | /** |
| 71 | * nvme_print_info - print detailed NVMe controller and namespace information | |
| 72 | * | |
| 73 | * This prints out detailed human readable NVMe controller and namespace | |
| 74 | * information which is very useful for debugging. | |
| 75 | * | |
| 76 | * @udev: NVMe controller device | |
| 77 | * @return: 0 on success, -EIO if NVMe identify command fails | |
| 78 | */ | |
| 79 | int nvme_print_info(struct udevice *udev); | |
| 80 | ||
| c50b2883 PW |
81 | /** |
| 82 | * nvme_get_namespace_id - return namespace identifier | |
| 83 | * | |
| 84 | * This returns the namespace identifier. | |
| 85 | * | |
| 86 | * @udev: NVMe controller device | |
| 87 | * @ns_id: Place where to put the name space identifier | |
| 88 | * @eui64: Place where to put the IEEE Extended Unique Identifier | |
| 89 | * @return: 0 on success, -ve on error | |
| 90 | */ | |
| 91 | int nvme_get_namespace_id(struct udevice *udev, u32 *ns_id, u8 *eui64); | |
| 92 | ||
| 982388ea | 93 | #endif /* __NVME_H__ */ |