1219820Sjeff/* 2219820Sjeff * Copyright (c) 2004 Topspin Communications. All rights reserved. 3219820Sjeff * Copyright (c) 2005 Cisco Systems. All rights reserved. 4219820Sjeff * Copyright (c) 2005 Mellanox Technologies. All rights reserved. 5219820Sjeff * 6219820Sjeff * This software is available to you under a choice of one of two 7219820Sjeff * licenses. You may choose to be licensed under the terms of the GNU 8219820Sjeff * General Public License (GPL) Version 2, available from the file 9219820Sjeff * COPYING in the main directory of this source tree, or the 10219820Sjeff * OpenIB.org BSD license below: 11219820Sjeff * 12219820Sjeff * Redistribution and use in source and binary forms, with or 13219820Sjeff * without modification, are permitted provided that the following 14219820Sjeff * conditions are met: 15219820Sjeff * 16219820Sjeff * - Redistributions of source code must retain the above 17219820Sjeff * copyright notice, this list of conditions and the following 18219820Sjeff * disclaimer. 19219820Sjeff * 20219820Sjeff * - Redistributions in binary form must reproduce the above 21219820Sjeff * copyright notice, this list of conditions and the following 22219820Sjeff * disclaimer in the documentation and/or other materials 23219820Sjeff * provided with the distribution. 24219820Sjeff * 25219820Sjeff * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26219820Sjeff * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27219820Sjeff * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28219820Sjeff * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29219820Sjeff * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30219820Sjeff * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31219820Sjeff * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32219820Sjeff * SOFTWARE. 33219820Sjeff */ 34219820Sjeff 35219820Sjeff#include <linux/errno.h> 36219820Sjeff 37219820Sjeff#include "mthca_dev.h" 38219820Sjeff 39219820Sjeffint mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd) 40219820Sjeff{ 41219820Sjeff int err = 0; 42219820Sjeff 43219820Sjeff pd->privileged = privileged; 44219820Sjeff 45219820Sjeff atomic_set(&pd->sqp_count, 0); 46219820Sjeff pd->pd_num = mthca_alloc(&dev->pd_table.alloc); 47219820Sjeff if (pd->pd_num == -1) 48219820Sjeff return -ENOMEM; 49219820Sjeff 50219820Sjeff if (privileged) { 51219820Sjeff err = mthca_mr_alloc_notrans(dev, pd->pd_num, 52219820Sjeff MTHCA_MPT_FLAG_LOCAL_READ | 53219820Sjeff MTHCA_MPT_FLAG_LOCAL_WRITE, 54219820Sjeff &pd->ntmr); 55219820Sjeff if (err) 56219820Sjeff mthca_free(&dev->pd_table.alloc, pd->pd_num); 57219820Sjeff } 58219820Sjeff 59219820Sjeff return err; 60219820Sjeff} 61219820Sjeff 62219820Sjeffvoid mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd) 63219820Sjeff{ 64219820Sjeff if (pd->privileged) 65219820Sjeff mthca_free_mr(dev, &pd->ntmr); 66219820Sjeff mthca_free(&dev->pd_table.alloc, pd->pd_num); 67219820Sjeff} 68219820Sjeff 69219820Sjeffint mthca_init_pd_table(struct mthca_dev *dev) 70219820Sjeff{ 71219820Sjeff return mthca_alloc_init(&dev->pd_table.alloc, 72219820Sjeff dev->limits.num_pds, 73219820Sjeff (1 << 24) - 1, 74219820Sjeff dev->limits.reserved_pds); 75219820Sjeff} 76219820Sjeff 77219820Sjeffvoid mthca_cleanup_pd_table(struct mthca_dev *dev) 78219820Sjeff{ 79219820Sjeff /* XXX check if any PDs are still allocated? */ 80219820Sjeff mthca_alloc_cleanup(&dev->pd_table.alloc); 81219820Sjeff} 82