/*
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* Copyright (c) 2013, Cisco Systems, Inc. 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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* 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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*/
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#ifndef USNIC_ABI_H
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#define USNIC_ABI_H
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/* ABI between userspace and kernel */
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#define USNIC_UVERBS_ABI_VERSION 4
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#define USNIC_QP_GRP_MAX_WQS 8
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#define USNIC_QP_GRP_MAX_RQS 8
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#define USNIC_QP_GRP_MAX_CQS 16
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enum usnic_transport_type {
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USNIC_TRANSPORT_UNKNOWN = 0,
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USNIC_TRANSPORT_ROCE_CUSTOM = 1,
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USNIC_TRANSPORT_IPV4_UDP = 2,
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USNIC_TRANSPORT_MAX = 3,
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};
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struct usnic_transport_spec {
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enum usnic_transport_type trans_type;
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union {
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struct {
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uint16_t port_num;
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} usnic_roce;
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struct {
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uint32_t sock_fd;
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} udp;
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};
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};
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struct usnic_ib_create_qp_cmd {
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struct usnic_transport_spec spec;
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};
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/*TODO: Future - usnic_modify_qp needs to pass in generic filters */
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struct usnic_ib_create_qp_resp {
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u32 vfid;
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u32 qp_grp_id;
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u64 bar_bus_addr;
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u32 bar_len;
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/*
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* WQ, RQ, CQ are explicity specified bc exposing a generic resources inteface
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* expands the scope of ABI to many files.
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*/
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u32 wq_cnt;
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u32 rq_cnt;
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u32 cq_cnt;
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u32 wq_idx[USNIC_QP_GRP_MAX_WQS];
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u32 rq_idx[USNIC_QP_GRP_MAX_RQS];
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u32 cq_idx[USNIC_QP_GRP_MAX_CQS];
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u32 transport;
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u32 reserved[9];
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};
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#endif /* USNIC_ABI_H */
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