projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 5d8762d5 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 931a6de4 SG |
2 | /* |
| 3 | * Copyright (c) 2015 Mellanox Technologies. All rights reserved. | |
| 931a6de4 SG |
4 | */ |
| 5 | ||
| 6 | #ifndef _LINUX_NVME_RDMA_H | |
| 7 | #define _LINUX_NVME_RDMA_H | |
| 8 | ||
| 9 | enum nvme_rdma_cm_fmt { | |
| 10 | NVME_RDMA_CM_FMT_1_0 = 0x0, | |
| 11 | }; | |
| 12 | ||
| 13 | enum nvme_rdma_cm_status { | |
| 14 | NVME_RDMA_CM_INVALID_LEN = 0x01, | |
| 15 | NVME_RDMA_CM_INVALID_RECFMT = 0x02, | |
| 16 | NVME_RDMA_CM_INVALID_QID = 0x03, | |
| 17 | NVME_RDMA_CM_INVALID_HSQSIZE = 0x04, | |
| 18 | NVME_RDMA_CM_INVALID_HRQSIZE = 0x05, | |
| 19 | NVME_RDMA_CM_NO_RSC = 0x06, | |
| 20 | NVME_RDMA_CM_INVALID_IRD = 0x07, | |
| 21 | NVME_RDMA_CM_INVALID_ORD = 0x08, | |
| 22 | }; | |
| 23 | ||
| 3ee80c3d MG |
24 | static inline const char *nvme_rdma_cm_msg(enum nvme_rdma_cm_status status) |
| 25 | { | |
| 26 | switch (status) { | |
| 27 | case NVME_RDMA_CM_INVALID_LEN: | |
| 28 | return "invalid length"; | |
| 29 | case NVME_RDMA_CM_INVALID_RECFMT: | |
| 30 | return "invalid record format"; | |
| 31 | case NVME_RDMA_CM_INVALID_QID: | |
| 32 | return "invalid queue ID"; | |
| 33 | case NVME_RDMA_CM_INVALID_HSQSIZE: | |
| 34 | return "invalid host SQ size"; | |
| 35 | case NVME_RDMA_CM_INVALID_HRQSIZE: | |
| 36 | return "invalid host RQ size"; | |
| 37 | case NVME_RDMA_CM_NO_RSC: | |
| 38 | return "resource not found"; | |
| 39 | case NVME_RDMA_CM_INVALID_IRD: | |
| 40 | return "invalid IRD"; | |
| 41 | case NVME_RDMA_CM_INVALID_ORD: | |
| 42 | return "Invalid ORD"; | |
| 43 | default: | |
| 44 | return "unrecognized reason"; | |
| 45 | } | |
| 46 | } | |
| 47 | ||
| 931a6de4 SG |
48 | /** |
| 49 | * struct nvme_rdma_cm_req - rdma connect request | |
| 50 | * | |
| 51 | * @recfmt: format of the RDMA Private Data | |
| 52 | * @qid: queue Identifier for the Admin or I/O Queue | |
| 53 | * @hrqsize: host receive queue size to be created | |
| 54 | * @hsqsize: host send queue size to be created | |
| 55 | */ | |
| 56 | struct nvme_rdma_cm_req { | |
| 57 | __le16 recfmt; | |
| 58 | __le16 qid; | |
| 59 | __le16 hrqsize; | |
| 60 | __le16 hsqsize; | |
| 61 | u8 rsvd[24]; | |
| 62 | }; | |
| 63 | ||
| 64 | /** | |
| 65 | * struct nvme_rdma_cm_rep - rdma connect reply | |
| 66 | * | |
| 67 | * @recfmt: format of the RDMA Private Data | |
| 68 | * @crqsize: controller receive queue size | |
| 69 | */ | |
| 70 | struct nvme_rdma_cm_rep { | |
| 71 | __le16 recfmt; | |
| 72 | __le16 crqsize; | |
| 73 | u8 rsvd[28]; | |
| 74 | }; | |
| 75 | ||
| 76 | /** | |
| 77 | * struct nvme_rdma_cm_rej - rdma connect reject | |
| 78 | * | |
| 79 | * @recfmt: format of the RDMA Private Data | |
| 80 | * @fsts: error status for the associated connect request | |
| 81 | */ | |
| 82 | struct nvme_rdma_cm_rej { | |
| 83 | __le16 recfmt; | |
| 84 | __le16 sts; | |
| 85 | }; | |
| 86 | ||
| 87 | #endif /* _LINUX_NVME_RDMA_H */ |