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