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 two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenIB.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * 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 OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 */ 34 35 #include <linux/errno.h> 36 37 #include "mthca_dev.h" 38 39 int 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 62 void 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 69 int 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 77 void 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