cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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usnic_abi.h (2575B)

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