| Dennis Dalessandro | cf16335 | 2016-01-06 10:00:42 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright(c) 2015 Intel Corporation. |
| 3 | * |
| 4 | * This file is provided under a dual BSD/GPLv2 license. When using or |
| 5 | * redistributing this file, you may do so under either license. |
| 6 | * |
| 7 | * GPL LICENSE SUMMARY |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of version 2 of the GNU General Public License as |
| 11 | * published by the Free Software Foundation. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | * |
| 18 | * BSD LICENSE |
| 19 | * |
| 20 | * Redistribution and use in source and binary forms, with or without |
| 21 | * modification, are permitted provided that the following conditions |
| 22 | * are met: |
| 23 | * |
| 24 | * - Redistributions of source code must retain the above copyright |
| 25 | * notice, this list of conditions and the following disclaimer. |
| 26 | * - Redistributions in binary form must reproduce the above copyright |
| 27 | * notice, this list of conditions and the following disclaimer in |
| 28 | * the documentation and/or other materials provided with the |
| 29 | * distribution. |
| 30 | * - Neither the name of Intel Corporation nor the names of its |
| 31 | * contributors may be used to endorse or promote products derived |
| 32 | * from this software without specific prior written permission. |
| 33 | * |
| 34 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 35 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 36 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 37 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 38 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 39 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 40 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 41 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 42 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 43 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 44 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 45 | * |
| 46 | */ |
| 47 | |
| 48 | #include "cq.h" |
| 49 | |
| 50 | /** |
| 51 | * rvt_create_cq - create a completion queue |
| 52 | * @ibdev: the device this completion queue is attached to |
| 53 | * @attr: creation attributes |
| 54 | * @context: unused by the QLogic_IB driver |
| 55 | * @udata: user data for libibverbs.so |
| 56 | * |
| 57 | * Returns a pointer to the completion queue or negative errno values |
| 58 | * for failure. |
| 59 | * |
| 60 | * Called by ib_create_cq() in the generic verbs code. |
| 61 | */ |
| 62 | struct ib_cq *rvt_create_cq(struct ib_device *ibdev, |
| 63 | const struct ib_cq_init_attr *attr, |
| 64 | struct ib_ucontext *context, |
| 65 | struct ib_udata *udata) |
| 66 | { |
| 67 | return ERR_PTR(-EOPNOTSUPP); |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * rvt_destroy_cq - destroy a completion queue |
| 72 | * @ibcq: the completion queue to destroy. |
| 73 | * |
| 74 | * Returns 0 for success. |
| 75 | * |
| 76 | * Called by ib_destroy_cq() in the generic verbs code. |
| 77 | */ |
| 78 | int rvt_destroy_cq(struct ib_cq *ibcq) |
| 79 | { |
| 80 | return -EOPNOTSUPP; |
| 81 | } |
| 82 | |
| 83 | int rvt_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags) |
| 84 | { |
| 85 | return -EOPNOTSUPP; |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * rvt_resize_cq - change the size of the CQ |
| 90 | * @ibcq: the completion queue |
| 91 | * |
| 92 | * Returns 0 for success. |
| 93 | */ |
| 94 | int rvt_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata) |
| 95 | { |
| 96 | return -EOPNOTSUPP; |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * rvt_poll_cq - poll for work completion entries |
| 101 | * @ibcq: the completion queue to poll |
| 102 | * @num_entries: the maximum number of entries to return |
| 103 | * @entry: pointer to array where work completions are placed |
| 104 | * |
| 105 | * Returns the number of completion entries polled. |
| 106 | * |
| 107 | * This may be called from interrupt context. Also called by ib_poll_cq() |
| 108 | * in the generic verbs code. |
| 109 | */ |
| 110 | int rvt_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry) |
| 111 | { |
| 112 | return -EOPNOTSUPP; |
| 113 | } |