cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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nvme-rdma.h (2123B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
      4 */
      5
      6#ifndef _LINUX_NVME_RDMA_H
      7#define _LINUX_NVME_RDMA_H
      8
      9#define NVME_RDMA_MAX_QUEUE_SIZE	128
     10
     11enum nvme_rdma_cm_fmt {
     12	NVME_RDMA_CM_FMT_1_0 = 0x0,
     13};
     14
     15enum nvme_rdma_cm_status {
     16	NVME_RDMA_CM_INVALID_LEN	= 0x01,
     17	NVME_RDMA_CM_INVALID_RECFMT	= 0x02,
     18	NVME_RDMA_CM_INVALID_QID	= 0x03,
     19	NVME_RDMA_CM_INVALID_HSQSIZE	= 0x04,
     20	NVME_RDMA_CM_INVALID_HRQSIZE	= 0x05,
     21	NVME_RDMA_CM_NO_RSC		= 0x06,
     22	NVME_RDMA_CM_INVALID_IRD	= 0x07,
     23	NVME_RDMA_CM_INVALID_ORD	= 0x08,
     24};
     25
     26static inline const char *nvme_rdma_cm_msg(enum nvme_rdma_cm_status status)
     27{
     28	switch (status) {
     29	case NVME_RDMA_CM_INVALID_LEN:
     30		return "invalid length";
     31	case NVME_RDMA_CM_INVALID_RECFMT:
     32		return "invalid record format";
     33	case NVME_RDMA_CM_INVALID_QID:
     34		return "invalid queue ID";
     35	case NVME_RDMA_CM_INVALID_HSQSIZE:
     36		return "invalid host SQ size";
     37	case NVME_RDMA_CM_INVALID_HRQSIZE:
     38		return "invalid host RQ size";
     39	case NVME_RDMA_CM_NO_RSC:
     40		return "resource not found";
     41	case NVME_RDMA_CM_INVALID_IRD:
     42		return "invalid IRD";
     43	case NVME_RDMA_CM_INVALID_ORD:
     44		return "Invalid ORD";
     45	default:
     46		return "unrecognized reason";
     47	}
     48}
     49
     50/**
     51 * struct nvme_rdma_cm_req - rdma connect request
     52 *
     53 * @recfmt:        format of the RDMA Private Data
     54 * @qid:           queue Identifier for the Admin or I/O Queue
     55 * @hrqsize:       host receive queue size to be created
     56 * @hsqsize:       host send queue size to be created
     57 */
     58struct nvme_rdma_cm_req {
     59	__le16		recfmt;
     60	__le16		qid;
     61	__le16		hrqsize;
     62	__le16		hsqsize;
     63	u8		rsvd[24];
     64};
     65
     66/**
     67 * struct nvme_rdma_cm_rep - rdma connect reply
     68 *
     69 * @recfmt:        format of the RDMA Private Data
     70 * @crqsize:       controller receive queue size
     71 */
     72struct nvme_rdma_cm_rep {
     73	__le16		recfmt;
     74	__le16		crqsize;
     75	u8		rsvd[28];
     76};
     77
     78/**
     79 * struct nvme_rdma_cm_rej - rdma connect reject
     80 *
     81 * @recfmt:        format of the RDMA Private Data
     82 * @sts:           error status for the associated connect request
     83 */
     84struct nvme_rdma_cm_rej {
     85	__le16		recfmt;
     86	__le16		sts;
     87};
     88
     89#endif /* _LINUX_NVME_RDMA_H */