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/*
* Copyright (c) 2005 Topspin Communications. 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.
*/
#include <asm/page.h> /* PAGE_SHIFT */
#include "mthca_dev.h"
#include "mthca_memfree.h"
int mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar)
{
uar->index = mthca_alloc(&dev->uar_table.alloc);
if (uar->index == -1)
return -ENOMEM;
uar->pfn = (pci_resource_start(dev->pdev, 2) >> PAGE_SHIFT) + uar->index;
return 0;
}
void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar)
{
mthca_free(&dev->uar_table.alloc, uar->index);
}
int mthca_init_uar_table(struct mthca_dev *dev)
{
int ret;
ret = mthca_alloc_init(&dev->uar_table.alloc,
dev->limits.num_uars,
dev->limits.num_uars - 1,
dev->limits.reserved_uars + 1);
if (ret)
return ret;
ret = mthca_init_db_tab(dev);
if (ret)
mthca_alloc_cleanup(&dev->uar_table.alloc);
return ret;
}
void mthca_cleanup_uar_table(struct mthca_dev *dev)
{
mthca_cleanup_db_tab(dev);
/* XXX check if any UARs are still allocated? */
mthca_alloc_cleanup(&dev->uar_table.alloc);
}
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