71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
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/*
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* Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2007 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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#include <linux/init.h>
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#include <linux/errno.h>
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#include "mlx4.h"
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int mlx4_xrcd_alloc(struct mlx4_dev *dev, u32 *xrcdn)
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{
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struct mlx4_priv *priv = mlx4_priv(dev);
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*xrcdn = mlx4_bitmap_alloc(&priv->xrcd_bitmap);
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if (*xrcdn == -1)
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return -ENOMEM;
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return 0;
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}
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EXPORT_SYMBOL_GPL(mlx4_xrcd_alloc);
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void mlx4_xrcd_free(struct mlx4_dev *dev, u32 xrcdn)
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{
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mlx4_bitmap_free(&mlx4_priv(dev)->xrcd_bitmap, xrcdn);
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}
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EXPORT_SYMBOL_GPL(mlx4_xrcd_free);
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int __devinit mlx4_init_xrcd_table(struct mlx4_dev *dev)
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{
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struct mlx4_priv *priv = mlx4_priv(dev);
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return mlx4_bitmap_init(&priv->xrcd_bitmap, (1 << 16),
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(1 << 16) - 1, dev->caps.reserved_xrcds + 1, 0);
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}
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void mlx4_cleanup_xrcd_table(struct mlx4_dev *dev)
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{
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mlx4_bitmap_cleanup(&mlx4_priv(dev)->xrcd_bitmap);
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}
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