d6b92ffa99
kernel APIs. List of sources used: 1) rdma-core was cloned from "https://github.com/linux-rdma/rdma-core.git" Top commit d65138ef93af30b3ea249f3a84aa6a24ba7f8a75 2) OpenSM was cloned from git://git.openfabrics.org/~halr/opensm.git Top commit 85f841cf209f791c89a075048a907020e924528d 3) libibmad was cloned from "git://git.openfabrics.org/~iraweiny/libibmad.git" Tag 1.3.13 with some additional patches from Mellanox. 4) infiniband-diags was cloned from "git://git.openfabrics.org/~iraweiny/infiniband-diags.git" Tag 1.6.7 with some additional patches from Mellanox. Added the required Makefiles for building and installing. Sponsored by: Mellanox Technologies
71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/*
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* Copyright (c) 2007 Cisco, 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 DOORBELL_H
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#define DOORBELL_H
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#include <stdint.h>
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#include <pthread.h>
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#include "mlx4.h"
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#include "mmio.h"
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struct mlx4_context;
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#if SIZEOF_LONG == 8
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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# define MLX4_PAIR_TO_64(val) ((uint64_t) val[1] << 32 | val[0])
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#elif __BYTE_ORDER == __BIG_ENDIAN
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# define MLX4_PAIR_TO_64(val) ((uint64_t) val[0] << 32 | val[1])
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#else
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# error __BYTE_ORDER not defined
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#endif
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static inline void mlx4_write64(uint32_t val[2], struct mlx4_context *ctx, int offset)
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{
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mmio_writeq((unsigned long)(ctx->uar + offset), MLX4_PAIR_TO_64(val));
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}
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#else
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static inline void mlx4_write64(uint32_t val[2], struct mlx4_context *ctx, int offset)
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{
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pthread_spin_lock(&ctx->uar_lock);
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mmio_writel((unsigned long)(ctx->uar + offset), val[0]);
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mmio_writel((unsigned long)(ctx->uar + offset + 4), val[1]);
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pthread_spin_unlock(&ctx->uar_lock);
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}
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#endif
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#endif /* DOORBELL_H */
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