85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/*
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* Copyright (c) 2004 Topspin Communications. All rights reserved.
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* Copyright (c) 2005 Cisco Systems. All rights reserved.
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* Copyright (c) 2005 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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* $Id: mthca_pd.c 1349 2004-12-16 21:09:43Z roland $
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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 "mthca_dev.h"
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int mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd)
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{
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int err = 0;
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pd->privileged = privileged;
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atomic_set(&pd->sqp_count, 0);
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pd->pd_num = mthca_alloc(&dev->pd_table.alloc);
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if (pd->pd_num == -1)
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return -ENOMEM;
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if (privileged) {
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err = mthca_mr_alloc_notrans(dev, pd->pd_num,
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MTHCA_MPT_FLAG_LOCAL_READ |
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MTHCA_MPT_FLAG_LOCAL_WRITE,
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&pd->ntmr);
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if (err)
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mthca_free(&dev->pd_table.alloc, pd->pd_num);
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}
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return err;
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}
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void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd)
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{
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if (pd->privileged)
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mthca_free_mr(dev, &pd->ntmr);
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mthca_free(&dev->pd_table.alloc, pd->pd_num);
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}
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int __devinit mthca_init_pd_table(struct mthca_dev *dev)
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{
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return mthca_alloc_init(&dev->pd_table.alloc,
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dev->limits.num_pds,
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(1 << 24) - 1,
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dev->limits.reserved_pds);
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}
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void mthca_cleanup_pd_table(struct mthca_dev *dev)
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{
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/* XXX check if any PDs are still allocated? */
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mthca_alloc_cleanup(&dev->pd_table.alloc);
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}
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