forked from mirrors/linux
d3cf81f9c8
The iser RDMA_CM negotiation protocol is shared by the initiator and the target, so have a shared header for the defines and structure. Move relevant items from the initiator and target headers. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Jenny Derzhavetz <jennyf@mellanox.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Doug Ledford <dledford@redhat.com>
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/*
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* Copyright (c) 2015 Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ISCSI_ISER_H
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#define ISCSI_ISER_H
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#define ISER_ZBVA_NOT_SUP 0x80
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#define ISER_SEND_W_INV_NOT_SUP 0x40
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#define ISERT_ZBVA_NOT_USED 0x80
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#define ISERT_SEND_W_INV_NOT_USED 0x40
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#define ISCSI_CTRL 0x10
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#define ISER_HELLO 0x20
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#define ISER_HELLORPLY 0x30
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#define ISER_VER 0x10
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#define ISER_WSV 0x08
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#define ISER_RSV 0x04
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/**
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* struct iser_cm_hdr - iSER CM header (from iSER Annex A12)
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*
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* @flags: flags support (zbva, send_w_inv)
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* @rsvd: reserved
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*/
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struct iser_cm_hdr {
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u8 flags;
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u8 rsvd[3];
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} __packed;
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/**
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* struct iser_ctrl - iSER header of iSCSI control PDU
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*
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* @flags: opcode and read/write valid bits
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* @rsvd: reserved
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* @write_stag: write rkey
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* @write_va: write virtual address
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* @reaf_stag: read rkey
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* @read_va: read virtual address
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*/
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struct iser_ctrl {
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u8 flags;
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u8 rsvd[3];
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__be32 write_stag;
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__be64 write_va;
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__be32 read_stag;
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__be64 read_va;
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} __packed;
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#endif /* ISCSI_ISER_H */
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