1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * This software is available to you under a choice of one of two 5*4882a593Smuzhiyun * licenses. You may choose to be licensed under the terms of the GNU 6*4882a593Smuzhiyun * General Public License (GPL) Version 2, available from the file 7*4882a593Smuzhiyun * COPYING in the main directory of this source tree, or the 8*4882a593Smuzhiyun * BSD license below: 9*4882a593Smuzhiyun * 10*4882a593Smuzhiyun * Redistribution and use in source and binary forms, with or 11*4882a593Smuzhiyun * without modification, are permitted provided that the following 12*4882a593Smuzhiyun * conditions are met: 13*4882a593Smuzhiyun * 14*4882a593Smuzhiyun * - Redistributions of source code must retain the above 15*4882a593Smuzhiyun * copyright notice, this list of conditions and the following 16*4882a593Smuzhiyun * disclaimer. 17*4882a593Smuzhiyun * 18*4882a593Smuzhiyun * - Redistributions in binary form must reproduce the above 19*4882a593Smuzhiyun * copyright notice, this list of conditions and the following 20*4882a593Smuzhiyun * disclaimer in the documentation and/or other materials 21*4882a593Smuzhiyun * provided with the distribution. 22*4882a593Smuzhiyun * 23*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24*4882a593Smuzhiyun * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25*4882a593Smuzhiyun * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26*4882a593Smuzhiyun * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27*4882a593Smuzhiyun * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28*4882a593Smuzhiyun * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29*4882a593Smuzhiyun * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30*4882a593Smuzhiyun * SOFTWARE. 31*4882a593Smuzhiyun * 32*4882a593Smuzhiyun */ 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun #ifndef USNIC_ABI_H 36*4882a593Smuzhiyun #define USNIC_ABI_H 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun /* ABI between userspace and kernel */ 39*4882a593Smuzhiyun #define USNIC_UVERBS_ABI_VERSION 4 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun #define USNIC_QP_GRP_MAX_WQS 8 42*4882a593Smuzhiyun #define USNIC_QP_GRP_MAX_RQS 8 43*4882a593Smuzhiyun #define USNIC_QP_GRP_MAX_CQS 16 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun enum usnic_transport_type { 46*4882a593Smuzhiyun USNIC_TRANSPORT_UNKNOWN = 0, 47*4882a593Smuzhiyun USNIC_TRANSPORT_ROCE_CUSTOM = 1, 48*4882a593Smuzhiyun USNIC_TRANSPORT_IPV4_UDP = 2, 49*4882a593Smuzhiyun USNIC_TRANSPORT_MAX = 3, 50*4882a593Smuzhiyun }; 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun struct usnic_transport_spec { 53*4882a593Smuzhiyun enum usnic_transport_type trans_type; 54*4882a593Smuzhiyun union { 55*4882a593Smuzhiyun struct { 56*4882a593Smuzhiyun uint16_t port_num; 57*4882a593Smuzhiyun } usnic_roce; 58*4882a593Smuzhiyun struct { 59*4882a593Smuzhiyun uint32_t sock_fd; 60*4882a593Smuzhiyun } udp; 61*4882a593Smuzhiyun }; 62*4882a593Smuzhiyun }; 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun struct usnic_ib_create_qp_cmd { 65*4882a593Smuzhiyun struct usnic_transport_spec spec; 66*4882a593Smuzhiyun }; 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun /*TODO: Future - usnic_modify_qp needs to pass in generic filters */ 69*4882a593Smuzhiyun struct usnic_ib_create_qp_resp { 70*4882a593Smuzhiyun u32 vfid; 71*4882a593Smuzhiyun u32 qp_grp_id; 72*4882a593Smuzhiyun u64 bar_bus_addr; 73*4882a593Smuzhiyun u32 bar_len; 74*4882a593Smuzhiyun /* 75*4882a593Smuzhiyun * WQ, RQ, CQ are explicity specified bc exposing a generic resources inteface 76*4882a593Smuzhiyun * expands the scope of ABI to many files. 77*4882a593Smuzhiyun */ 78*4882a593Smuzhiyun u32 wq_cnt; 79*4882a593Smuzhiyun u32 rq_cnt; 80*4882a593Smuzhiyun u32 cq_cnt; 81*4882a593Smuzhiyun u32 wq_idx[USNIC_QP_GRP_MAX_WQS]; 82*4882a593Smuzhiyun u32 rq_idx[USNIC_QP_GRP_MAX_RQS]; 83*4882a593Smuzhiyun u32 cq_idx[USNIC_QP_GRP_MAX_CQS]; 84*4882a593Smuzhiyun u32 transport; 85*4882a593Smuzhiyun u32 reserved[9]; 86*4882a593Smuzhiyun }; 87*4882a593Smuzhiyun 88*4882a593Smuzhiyun #endif /* USNIC_ABI_H */ 89