ACIL FM

Nama	Ukuran	Aksi
cq.h	5.77 MB	View DL Edit
device.h	38.8 MB	View DL Edit
doorbell.h	2.22 MB	View DL Edit
driver.h	35.06 MB	View DL Edit
eq.h	1.72 MB	View DL Edit
eswitch.h	6.41 MB	View DL Edit
fs.h	9.47 MB	View DL Edit
fs_helpers.h	2.91 MB	View DL Edit
mlx5_ifc.h	294 MB	View DL Edit
mlx5_ifc_fpga.h	8.86 MB	View DL Edit
mlx5_ifc_vdpa.h	5.25 MB	View DL Edit
mpfs.h	540 B	View DL Edit
port.h	7.97 MB	View DL Edit
qp.h	12.36 MB	View DL Edit
rsc_dump.h	1.26 MB	View DL Edit
transobj.h	3.48 MB	View DL Edit
vport.h	5.59 MB	View DL Edit

Edit file: /usr/src/kernels/5.14.0-427.31.1.el9_4.x86_64/include/linux/mlx5/doorbell.h

/*
 * Copyright (c) 2013-2015, Mellanox Technologies. 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 MLX5_DOORBELL_H
#define MLX5_DOORBELL_H

#define MLX5_BF_OFFSET	      0x800
#define MLX5_CQ_DOORBELL      0x20

/* Assume that we can just write a 64-bit doorbell atomically.  s390
 * actually doesn't have writeq() but S/390 systems don't even have
 * PCI so we won't worry about it.
 *
 * Note that the write is not atomic on 32-bit systems! In contrast to 64-bit
 * ones, it requires proper locking. mlx5_write64 doesn't do any locking, so use
 * it at your own discretion, protected by some kind of lock on 32 bits.
 *
 * TODO: use write{q,l}_relaxed()
 */

static inline void mlx5_write64(__be32 val[2], void __iomem *dest)
{
#if BITS_PER_LONG == 64
	__raw_writeq(*(u64 *)val, dest);
#else
	__raw_writel((__force u32) val[0], dest);
	__raw_writel((__force u32) val[1], dest + 4);
#endif
}

#endif /* MLX5_DOORBELL_H */

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