1329222Shselasky/* 2329222Shselasky * Copyright (c) 2005 Topspin Communications. All rights reserved. 3329222Shselasky * 4329222Shselasky * This software is available to you under a choice of one of two 5329222Shselasky * licenses. You may choose to be licensed under the terms of the GNU 6329222Shselasky * General Public License (GPL) Version 2, available from the file 7329222Shselasky * COPYING in the main directory of this source tree, or the 8329222Shselasky * OpenIB.org BSD license below: 9329222Shselasky * 10329222Shselasky * Redistribution and use in source and binary forms, with or 11329222Shselasky * without modification, are permitted provided that the following 12329222Shselasky * conditions are met: 13329222Shselasky * 14329222Shselasky * - Redistributions of source code must retain the above 15329222Shselasky * copyright notice, this list of conditions and the following 16329222Shselasky * disclaimer. 17329222Shselasky * 18329222Shselasky * - Redistributions in binary form must reproduce the above 19329222Shselasky * copyright notice, this list of conditions and the following 20329222Shselasky * disclaimer in the documentation and/or other materials 21329222Shselasky * provided with the distribution. 22329222Shselasky * 23329222Shselasky * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24329222Shselasky * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25329222Shselasky * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26329222Shselasky * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27329222Shselasky * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28329222Shselasky * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29329222Shselasky * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30329222Shselasky * SOFTWARE. 31329222Shselasky */ 32329222Shselasky 33329222Shselasky#include "mthca_dev.h" 34329222Shselasky#include "mthca_memfree.h" 35329222Shselasky 36329222Shselaskyint mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar) 37329222Shselasky{ 38329222Shselasky uar->index = mthca_alloc(&dev->uar_table.alloc); 39329222Shselasky if (uar->index == -1) 40329222Shselasky return -ENOMEM; 41329222Shselasky 42329222Shselasky uar->pfn = (pci_resource_start(dev->pdev, 2) >> PAGE_SHIFT) + uar->index; 43329222Shselasky 44329222Shselasky return 0; 45329222Shselasky} 46329222Shselasky 47329222Shselaskyvoid mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar) 48329222Shselasky{ 49329222Shselasky mthca_free(&dev->uar_table.alloc, uar->index); 50329222Shselasky} 51329222Shselasky 52329222Shselaskyint mthca_init_uar_table(struct mthca_dev *dev) 53329222Shselasky{ 54329222Shselasky int ret; 55329222Shselasky 56329222Shselasky ret = mthca_alloc_init(&dev->uar_table.alloc, 57329222Shselasky dev->limits.num_uars, 58329222Shselasky dev->limits.num_uars - 1, 59329222Shselasky dev->limits.reserved_uars + 1); 60329222Shselasky if (ret) 61329222Shselasky return ret; 62329222Shselasky 63329222Shselasky ret = mthca_init_db_tab(dev); 64329222Shselasky if (ret) 65329222Shselasky mthca_alloc_cleanup(&dev->uar_table.alloc); 66329222Shselasky 67329222Shselasky return ret; 68329222Shselasky} 69329222Shselasky 70329222Shselaskyvoid mthca_cleanup_uar_table(struct mthca_dev *dev) 71329222Shselasky{ 72329222Shselasky mthca_cleanup_db_tab(dev); 73329222Shselasky 74329222Shselasky /* XXX check if any UARs are still allocated? */ 75329222Shselasky mthca_alloc_cleanup(&dev->uar_table.alloc); 76329222Shselasky} 77