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/*
* Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#ifndef USNIC_ABI_H
#define USNIC_ABI_H
/* ABI between userspace and kernel */
#define USNIC_UVERBS_ABI_VERSION 4
#define USNIC_QP_GRP_MAX_WQS 8
#define USNIC_QP_GRP_MAX_RQS 8
#define USNIC_QP_GRP_MAX_CQS 16
enum usnic_transport_type {
USNIC_TRANSPORT_UNKNOWN = 0,
USNIC_TRANSPORT_ROCE_CUSTOM = 1,
USNIC_TRANSPORT_IPV4_UDP = 2,
USNIC_TRANSPORT_MAX = 3,
};
struct usnic_transport_spec {
enum usnic_transport_type trans_type;
union {
struct {
uint16_t port_num;
} usnic_roce;
struct {
uint32_t sock_fd;
} udp;
};
};
struct usnic_ib_create_qp_cmd {
struct usnic_transport_spec spec;
};
/*TODO: Future - usnic_modify_qp needs to pass in generic filters */
struct usnic_ib_create_qp_resp {
u32 vfid;
u32 qp_grp_id;
u64 bar_bus_addr;
u32 bar_len;
/*
* WQ, RQ, CQ are explicity specified bc exposing a generic resources inteface
* expands the scope of ABI to many files.
*/
u32 wq_cnt;
u32 rq_cnt;
u32 cq_cnt;
u32 wq_idx[USNIC_QP_GRP_MAX_WQS];
u32 rq_idx[USNIC_QP_GRP_MAX_RQS];
u32 cq_idx[USNIC_QP_GRP_MAX_CQS];
u32 transport;
u32 reserved[9];
};
#endif /* USNIC_ABI_H */
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