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1/*2 * Copyright (c) 2004 Topspin Communications. All rights reserved.3 * Copyright (c) 2005 Cisco Systems. All rights reserved.4 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.5 *6 * This software is available to you under a choice of one of two7 * licenses. You may choose to be licensed under the terms of the GNU8 * General Public License (GPL) Version 2, available from the file9 * COPYING in the main directory of this source tree, or the10 * OpenIB.org BSD license below:11 *12 * Redistribution and use in source and binary forms, with or13 * without modification, are permitted provided that the following14 * conditions are met:15 *16 * - Redistributions of source code must retain the above17 * copyright notice, this list of conditions and the following18 * disclaimer.19 *20 * - Redistributions in binary form must reproduce the above21 * copyright notice, this list of conditions and the following22 * disclaimer in the documentation and/or other materials23 * provided with the distribution.24 *25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE32 * SOFTWARE.33 */34 35#include <linux/errno.h>36 37#include "mthca_dev.h"38 39int mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd)40{41 int err = 0;42 43 pd->privileged = privileged;44 45 atomic_set(&pd->sqp_count, 0);46 pd->pd_num = mthca_alloc(&dev->pd_table.alloc);47 if (pd->pd_num == -1)48 return -ENOMEM;49 50 if (privileged) {51 err = mthca_mr_alloc_notrans(dev, pd->pd_num,52 MTHCA_MPT_FLAG_LOCAL_READ |53 MTHCA_MPT_FLAG_LOCAL_WRITE,54 &pd->ntmr);55 if (err)56 mthca_free(&dev->pd_table.alloc, pd->pd_num);57 }58 59 return err;60}61 62void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd)63{64 if (pd->privileged)65 mthca_free_mr(dev, &pd->ntmr);66 mthca_free(&dev->pd_table.alloc, pd->pd_num);67}68 69int mthca_init_pd_table(struct mthca_dev *dev)70{71 return mthca_alloc_init(&dev->pd_table.alloc,72 dev->limits.num_pds,73 (1 << 24) - 1,74 dev->limits.reserved_pds);75}76 77void mthca_cleanup_pd_table(struct mthca_dev *dev)78{79 /* XXX check if any PDs are still allocated? */80 mthca_alloc_cleanup(&dev->pd_table.alloc);81}82