1 | /* |
2 | * This file is part of the Chelsio T6 Ethernet driver for Linux. |
3 | * |
4 | * Copyright (c) 2017-2018 Chelsio Communications, Inc. All rights reserved. |
5 | * |
6 | * This software is available to you under a choice of one of two |
7 | * licenses. You may choose to be licensed under the terms of the GNU |
8 | * General Public License (GPL) Version 2, available from the file |
9 | * COPYING in the main directory of this source tree, or the |
10 | * OpenIB.org BSD license below: |
11 | * |
12 | * Redistribution and use in source and binary forms, with or |
13 | * without modification, are permitted provided that the following |
14 | * conditions are met: |
15 | * |
16 | * - Redistributions of source code must retain the above |
17 | * copyright notice, this list of conditions and the following |
18 | * disclaimer. |
19 | * |
20 | * - Redistributions in binary form must reproduce the above |
21 | * copyright notice, this list of conditions and the following |
22 | * disclaimer in the documentation and/or other materials |
23 | * provided with the distribution. |
24 | * |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
32 | * SOFTWARE. |
33 | */ |
34 | |
35 | #ifndef __CXGB4_SRQ_H |
36 | #define __CXGB4_SRQ_H |
37 | |
38 | struct adapter; |
39 | struct cpl_srq_table_rpl; |
40 | |
41 | #define SRQ_WAIT_TO (HZ * 5) |
42 | |
43 | struct srq_entry { |
44 | u8 valid; |
45 | u8 idx; |
46 | u8 qlen; |
47 | u16 pdid; |
48 | u16 cur_msn; |
49 | u16 max_msn; |
50 | u32 qbase; |
51 | }; |
52 | |
53 | struct srq_data { |
54 | unsigned int srq_size; |
55 | struct srq_entry *entryp; |
56 | struct completion comp; |
57 | struct mutex lock; /* generic mutex for srq data */ |
58 | }; |
59 | |
60 | struct srq_data *t4_init_srq(int srq_size); |
61 | int cxgb4_get_srq_entry(struct net_device *dev, |
62 | int srq_idx, struct srq_entry *entryp); |
63 | void do_srq_table_rpl(struct adapter *adap, |
64 | const struct cpl_srq_table_rpl *rpl); |
65 | #endif /* __CXGB4_SRQ_H */ |
66 | |