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Shared receive queue (SRQ) is defined as a pool of receive buffers shared among multiple QPs which belong to same protection domain in a given process context. Use of SRQ reduces the memory foot print of IB applications. Broadcom adapters support SRQ, adding code-changes to enable shared receive queue. Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
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/*
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* Broadcom NetXtreme-E RoCE driver.
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*
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* Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term
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* Broadcom refers to Broadcom Limited and/or its subsidiaries.
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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 without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Description: Uverbs ABI header file
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*/
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#ifndef __BNXT_RE_UVERBS_ABI_H__
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#define __BNXT_RE_UVERBS_ABI_H__
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#include <linux/types.h>
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#define BNXT_RE_ABI_VERSION 1
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struct bnxt_re_uctx_resp {
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__u32 dev_id;
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__u32 max_qp;
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__u32 pg_size;
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__u32 cqe_sz;
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__u32 max_cqd;
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__u32 rsvd;
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};
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struct bnxt_re_pd_resp {
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__u32 pdid;
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__u32 dpi;
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__u64 dbr;
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};
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struct bnxt_re_cq_req {
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__u64 cq_va;
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__u64 cq_handle;
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};
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struct bnxt_re_cq_resp {
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__u32 cqid;
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__u32 tail;
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__u32 phase;
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__u32 rsvd;
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};
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struct bnxt_re_qp_req {
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__u64 qpsva;
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__u64 qprva;
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__u64 qp_handle;
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};
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struct bnxt_re_qp_resp {
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__u32 qpid;
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__u32 rsvd;
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};
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struct bnxt_re_srq_req {
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__u64 srqva;
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__u64 srq_handle;
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};
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struct bnxt_re_srq_resp {
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__u32 srqid;
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};
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enum bnxt_re_shpg_offt {
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BNXT_RE_BEG_RESV_OFFT = 0x00,
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BNXT_RE_AVID_OFFT = 0x10,
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BNXT_RE_AVID_SIZE = 0x04,
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BNXT_RE_END_RESV_OFFT = 0xFF0
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};
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#endif /* __BNXT_RE_UVERBS_ABI_H__*/
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