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1/*2 * Copyright (c) 2005 Topspin Communications. All rights reserved.3 *4 * This software is available to you under a choice of one of two5 * licenses. You may choose to be licensed under the terms of the GNU6 * General Public License (GPL) Version 2, available from the file7 * COPYING in the main directory of this source tree, or the8 * OpenIB.org BSD license below:9 *10 * Redistribution and use in source and binary forms, with or11 * without modification, are permitted provided that the following12 * conditions are met:13 *14 * - Redistributions of source code must retain the above15 * copyright notice, this list of conditions and the following16 * disclaimer.17 *18 * - Redistributions in binary form must reproduce the above19 * copyright notice, this list of conditions and the following20 * disclaimer in the documentation and/or other materials21 * provided with the distribution.22 *23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE30 * SOFTWARE.31 */32 33#include <asm/page.h> /* PAGE_SHIFT */34 35#include "mthca_dev.h"36#include "mthca_memfree.h"37 38int mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar)39{40 uar->index = mthca_alloc(&dev->uar_table.alloc);41 if (uar->index == -1)42 return -ENOMEM;43 44 uar->pfn = (pci_resource_start(dev->pdev, 2) >> PAGE_SHIFT) + uar->index;45 46 return 0;47}48 49void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar)50{51 mthca_free(&dev->uar_table.alloc, uar->index);52}53 54int mthca_init_uar_table(struct mthca_dev *dev)55{56 int ret;57 58 ret = mthca_alloc_init(&dev->uar_table.alloc,59 dev->limits.num_uars,60 dev->limits.num_uars - 1,61 dev->limits.reserved_uars + 1);62 if (ret)63 return ret;64 65 ret = mthca_init_db_tab(dev);66 if (ret)67 mthca_alloc_cleanup(&dev->uar_table.alloc);68 69 return ret;70}71 72void mthca_cleanup_uar_table(struct mthca_dev *dev)73{74 mthca_cleanup_db_tab(dev);75 76 /* XXX check if any UARs are still allocated? */77 mthca_alloc_cleanup(&dev->uar_table.alloc);78}79