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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e3cf00d0a8
This adds a driver that allows userspace to use UD-like QPs over a proprietary Cisco transport with Cisco's Virtual Interface Cards (VICs), including VIC 1240 and 1280 cards. Signed-off-by: Upinder Malhi <umalhi@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
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* Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
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*
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* This program is free software; you may redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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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 2
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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_MAX = 2,
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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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