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
68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/*
|
|
* Copyright (c) 2012 Mellanox Technologies, Inc. All rights reserved.
|
|
*
|
|
* This software is available to you under a choice of one of two
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
|
|
#ifndef DOORBELL_H
|
|
#define DOORBELL_H
|
|
|
|
#include <stdint.h>
|
|
#include "mlx5.h"
|
|
|
|
#if SIZEOF_LONG == 8
|
|
|
|
#if __BYTE_ORDER == __LITTLE_ENDIAN
|
|
# define MLX5_PAIR_TO_64(val) ((uint64_t) val[1] << 32 | val[0])
|
|
#elif __BYTE_ORDER == __BIG_ENDIAN
|
|
# define MLX5_PAIR_TO_64(val) ((uint64_t) val[0] << 32 | val[1])
|
|
#else
|
|
# error __BYTE_ORDER not defined
|
|
#endif
|
|
|
|
static inline void mlx5_write64(uint32_t val[2], void *dest, struct mlx5_spinlock *lock)
|
|
{
|
|
*(volatile uint64_t *)dest = MLX5_PAIR_TO_64(val);
|
|
}
|
|
|
|
#else
|
|
|
|
static inline void mlx5_write64(uint32_t val[2], void *dest, struct mlx5_spinlock *lock)
|
|
{
|
|
mlx5_spin_lock(lock);
|
|
*(volatile uint32_t *)dest = val[0];
|
|
*(volatile uint32_t *)(dest + 4) = val[1];
|
|
mlx5_spin_unlock(lock);
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* DOORBELL_H */
|