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-rw-r--r--include/linux/nvme-rdma.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/include/linux/nvme-rdma.h b/include/linux/nvme-rdma.h
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+++ b/include/linux/nvme-rdma.h
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+/*
+ * 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 */