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d54bd5abf4
Add resize_cq verb support for user space CQs. Resize operation for kernel CQs are not supported now. Driver should free the current CQ only after user library polls for all the completions and switch to new CQ. So after the resize_cq is returned from the driver, user library polls for existing completions and store it as temporary data. Once library reaps all completions in the current CQ, it invokes the ibv_cmd_poll_cq to inform the driver about the resize_cq completion. Adding a check for user CQs in driver's poll_cq and complete the resize operation for user CQs. Updating uverbs_cmd_mask with poll_cq to support this. Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Link: https://lore.kernel.org/r/1678868215-23626-1-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
130 lines
3.5 KiB
C
130 lines
3.5 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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#define BNXT_RE_CHIP_ID0_CHIP_NUM_SFT 0x00
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#define BNXT_RE_CHIP_ID0_CHIP_REV_SFT 0x10
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#define BNXT_RE_CHIP_ID0_CHIP_MET_SFT 0x18
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enum {
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BNXT_RE_UCNTX_CMASK_HAVE_CCTX = 0x1ULL,
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BNXT_RE_UCNTX_CMASK_HAVE_MODE = 0x02ULL,
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};
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enum bnxt_re_wqe_mode {
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BNXT_QPLIB_WQE_MODE_STATIC = 0x00,
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BNXT_QPLIB_WQE_MODE_VARIABLE = 0x01,
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BNXT_QPLIB_WQE_MODE_INVALID = 0x02,
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};
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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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__aligned_u64 comp_mask;
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__u32 chip_id0;
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__u32 chip_id1;
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__u32 mode;
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__u32 rsvd1; /* padding */
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};
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/*
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* This struct is placed after the ib_uverbs_alloc_pd_resp struct, which is
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* not 8 byted aligned. To avoid undesired padding in various cases we have to
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* set this struct to packed.
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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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} __attribute__((packed, aligned(4)));
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struct bnxt_re_cq_req {
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__aligned_u64 cq_va;
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__aligned_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_resize_cq_req {
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__aligned_u64 cq_va;
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};
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struct bnxt_re_qp_req {
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__aligned_u64 qpsva;
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__aligned_u64 qprva;
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__aligned_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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__aligned_u64 srqva;
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__aligned_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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