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9f550553a4
Expose a new API mlx4_srq_lookup() to retrive a SRQ based on its number. This API is needed in the mlx4_ib driver CQ polling logic, when a work completion is associated with a XRC TGT QP. Since a target QP may redirect to more than one XRC SRQ, the srq field in the QP has no usage and the real XRC SRQ need to be retrived using the information from the XRCETH IB header which is placed in the HW CQE. Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/*
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* Copyright (c) 2007 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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* OpenIB.org 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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#ifndef MLX4_SRQ_H
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#define MLX4_SRQ_H
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struct mlx4_wqe_srq_next_seg {
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u16 reserved1;
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__be16 next_wqe_index;
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u32 reserved2[3];
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};
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struct mlx4_srq *mlx4_srq_lookup(struct mlx4_dev *dev, u32 srqn);
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#endif /* MLX4_SRQ_H */
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