mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 08:15:19 +07:00
931a6de4d7
NVMe over Fabrics RDMA transport defines a connection establishment protocol over the RDMA connection manager. This header will be used by both the host and target drivers to negotiate the connection establishment parameters. Signed-off-by: Jay Freyensee <james.p.freyensee@intel.com> Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Tested-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Jens Axboe <axboe@fb.com>
72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
/*
|
|
* Copyright (c) 2015 Mellanox Technologies. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*/
|
|
|
|
#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,
|
|
};
|
|
|
|
/**
|
|
* 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
|
|
* @fsts: error status for the associated connect request
|
|
*/
|
|
struct nvme_rdma_cm_rej {
|
|
__le16 recfmt;
|
|
__le16 sts;
|
|
};
|
|
|
|
#endif /* _LINUX_NVME_RDMA_H */
|