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Add support to new XRQ(eXtended shared Receive Queue) hardware object. It supports SRQ semantics with addition of extended receive buffers topologies and offloads. Currently supports tag matching topology and rendezvouz offload. Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com> Reviewed-by: Yossi Itigin <yosefe@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
71 lines
2 KiB
C
71 lines
2 KiB
C
/*
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* Copyright (c) 2013-2015, Mellanox Technologies. 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 MLX5_SRQ_H
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#define MLX5_SRQ_H
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#include <linux/mlx5/driver.h>
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enum {
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MLX5_SRQ_FLAG_ERR = (1 << 0),
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MLX5_SRQ_FLAG_WQ_SIG = (1 << 1),
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MLX5_SRQ_FLAG_RNDV = (1 << 2),
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};
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struct mlx5_srq_attr {
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u32 type;
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u32 flags;
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u32 log_size;
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u32 wqe_shift;
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u32 log_page_size;
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u32 wqe_cnt;
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u32 srqn;
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u32 xrcd;
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u32 page_offset;
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u32 cqn;
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u32 pd;
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u32 lwm;
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u32 user_index;
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u64 db_record;
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__be64 *pas;
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u32 tm_log_list_size;
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u32 tm_next_tag;
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u32 tm_hw_phase_cnt;
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u32 tm_sw_phase_cnt;
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};
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struct mlx5_core_dev;
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void mlx5_init_srq_table(struct mlx5_core_dev *dev);
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void mlx5_cleanup_srq_table(struct mlx5_core_dev *dev);
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#endif /* MLX5_SRQ_H */
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