Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2005 Topspin Communications. All rights reserved. |
| 3 | * |
| 4 | * This software is available to you under a choice of one of two |
| 5 | * licenses. You may choose to be licensed under the terms of the GNU |
| 6 | * General Public License (GPL) Version 2, available from the file |
| 7 | * COPYING in the main directory of this source tree, or the |
| 8 | * OpenIB.org BSD license below: |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or |
| 11 | * without modification, are permitted provided that the following |
| 12 | * conditions are met: |
| 13 | * |
| 14 | * - Redistributions of source code must retain the above |
| 15 | * copyright notice, this list of conditions and the following |
| 16 | * disclaimer. |
| 17 | * |
| 18 | * - Redistributions in binary form must reproduce the above |
| 19 | * copyright notice, this list of conditions and the following |
| 20 | * disclaimer in the documentation and/or other materials |
| 21 | * 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 OF |
| 25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 30 | * SOFTWARE. |
| 31 | * |
| 32 | * $Id$ |
| 33 | */ |
| 34 | |
Tim Schmielau | 4e57b68 | 2005-10-30 15:03:48 -0800 | [diff] [blame] | 35 | #include <asm/page.h> /* PAGE_SHIFT */ |
| 36 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | #include "mthca_dev.h" |
| 38 | #include "mthca_memfree.h" |
| 39 | |
| 40 | int mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar) |
| 41 | { |
| 42 | uar->index = mthca_alloc(&dev->uar_table.alloc); |
| 43 | if (uar->index == -1) |
| 44 | return -ENOMEM; |
| 45 | |
| 46 | uar->pfn = (pci_resource_start(dev->pdev, 2) >> PAGE_SHIFT) + uar->index; |
| 47 | |
| 48 | return 0; |
| 49 | } |
| 50 | |
| 51 | void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar) |
| 52 | { |
| 53 | mthca_free(&dev->uar_table.alloc, uar->index); |
| 54 | } |
| 55 | |
| 56 | int mthca_init_uar_table(struct mthca_dev *dev) |
| 57 | { |
| 58 | int ret; |
| 59 | |
| 60 | ret = mthca_alloc_init(&dev->uar_table.alloc, |
| 61 | dev->limits.num_uars, |
| 62 | dev->limits.num_uars - 1, |
| 63 | dev->limits.reserved_uars); |
| 64 | if (ret) |
| 65 | return ret; |
| 66 | |
| 67 | ret = mthca_init_db_tab(dev); |
| 68 | if (ret) |
| 69 | mthca_alloc_cleanup(&dev->uar_table.alloc); |
| 70 | |
| 71 | return ret; |
| 72 | } |
| 73 | |
| 74 | void mthca_cleanup_uar_table(struct mthca_dev *dev) |
| 75 | { |
| 76 | mthca_cleanup_db_tab(dev); |
| 77 | |
| 78 | /* XXX check if any UARs are still allocated? */ |
| 79 | mthca_alloc_cleanup(&dev->uar_table.alloc); |
| 80 | } |