forked from Minki/linux
43d781b9fa
Like any other verbs objects, CQ shouldn't fail during destroy, but
mlx5_ib didn't follow this contract with mixed IB verbs objects with
DEVX. Such mix causes to the situation where FW and kernel are fully
interdependent on the reference counting of each side.
Kernel verbs and drivers that don't have DEVX flows shouldn't fail.
Fixes: e39afe3d6d ("RDMA: Convert CQ allocations to be under core responsibility")
Link: https://lore.kernel.org/r/20200907120921.476363-7-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
71 lines
3.0 KiB
C
71 lines
3.0 KiB
C
/*
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* Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
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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
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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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_IB_VERBS_H_
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#define USNIC_IB_VERBS_H_
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#include "usnic_ib.h"
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enum rdma_link_layer usnic_ib_port_link_layer(struct ib_device *device,
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u8 port_num);
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int usnic_ib_query_device(struct ib_device *ibdev,
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struct ib_device_attr *props,
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struct ib_udata *uhw);
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int usnic_ib_query_port(struct ib_device *ibdev, u8 port,
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struct ib_port_attr *props);
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int usnic_ib_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
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int qp_attr_mask,
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struct ib_qp_init_attr *qp_init_attr);
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int usnic_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
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union ib_gid *gid);
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int usnic_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
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int usnic_ib_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata);
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struct ib_qp *usnic_ib_create_qp(struct ib_pd *pd,
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struct ib_qp_init_attr *init_attr,
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struct ib_udata *udata);
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int usnic_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata);
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int usnic_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
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int attr_mask, struct ib_udata *udata);
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int usnic_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
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struct ib_udata *udata);
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int usnic_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata);
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struct ib_mr *usnic_ib_reg_mr(struct ib_pd *pd, u64 start, u64 length,
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u64 virt_addr, int access_flags,
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struct ib_udata *udata);
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int usnic_ib_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
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int usnic_ib_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata);
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void usnic_ib_dealloc_ucontext(struct ib_ucontext *ibcontext);
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int usnic_ib_mmap(struct ib_ucontext *context,
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struct vm_area_struct *vma);
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#endif /* !USNIC_IB_VERBS_H */
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