/* SPDX-License-Identifier: GPL-2.0 */
|
/*
|
* Copyright (c) 2015 Mellanox Technologies. All rights reserved.
|
*/
|
|
#ifndef _LINUX_NVME_RDMA_H
|
#define _LINUX_NVME_RDMA_H
|
|
enum nvme_rdma_cm_fmt {
|
NVME_RDMA_CM_FMT_1_0 = 0x0,
|
};
|
|
enum nvme_rdma_cm_status {
|
NVME_RDMA_CM_INVALID_LEN = 0x01,
|
NVME_RDMA_CM_INVALID_RECFMT = 0x02,
|
NVME_RDMA_CM_INVALID_QID = 0x03,
|
NVME_RDMA_CM_INVALID_HSQSIZE = 0x04,
|
NVME_RDMA_CM_INVALID_HRQSIZE = 0x05,
|
NVME_RDMA_CM_NO_RSC = 0x06,
|
NVME_RDMA_CM_INVALID_IRD = 0x07,
|
NVME_RDMA_CM_INVALID_ORD = 0x08,
|
};
|
|
static inline const char *nvme_rdma_cm_msg(enum nvme_rdma_cm_status status)
|
{
|
switch (status) {
|
case NVME_RDMA_CM_INVALID_LEN:
|
return "invalid length";
|
case NVME_RDMA_CM_INVALID_RECFMT:
|
return "invalid record format";
|
case NVME_RDMA_CM_INVALID_QID:
|
return "invalid queue ID";
|
case NVME_RDMA_CM_INVALID_HSQSIZE:
|
return "invalid host SQ size";
|
case NVME_RDMA_CM_INVALID_HRQSIZE:
|
return "invalid host RQ size";
|
case NVME_RDMA_CM_NO_RSC:
|
return "resource not found";
|
case NVME_RDMA_CM_INVALID_IRD:
|
return "invalid IRD";
|
case NVME_RDMA_CM_INVALID_ORD:
|
return "Invalid ORD";
|
default:
|
return "unrecognized reason";
|
}
|
}
|
|
/**
|
* struct nvme_rdma_cm_req - rdma connect request
|
*
|
* @recfmt: format of the RDMA Private Data
|
* @qid: queue Identifier for the Admin or I/O Queue
|
* @hrqsize: host receive queue size to be created
|
* @hsqsize: host send queue size to be created
|
*/
|
struct nvme_rdma_cm_req {
|
__le16 recfmt;
|
__le16 qid;
|
__le16 hrqsize;
|
__le16 hsqsize;
|
u8 rsvd[24];
|
};
|
|
/**
|
* struct nvme_rdma_cm_rep - rdma connect reply
|
*
|
* @recfmt: format of the RDMA Private Data
|
* @crqsize: controller receive queue size
|
*/
|
struct nvme_rdma_cm_rep {
|
__le16 recfmt;
|
__le16 crqsize;
|
u8 rsvd[28];
|
};
|
|
/**
|
* struct nvme_rdma_cm_rej - rdma connect reject
|
*
|
* @recfmt: format of the RDMA Private Data
|
* @sts: error status for the associated connect request
|
*/
|
struct nvme_rdma_cm_rej {
|
__le16 recfmt;
|
__le16 sts;
|
};
|
|
#endif /* _LINUX_NVME_RDMA_H */
|
