2 * This file is part of the Chelsio T4 Ethernet driver for Linux.
4 * Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved.
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:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
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.
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
35 #ifndef __CXGB4_SCHED_H
36 #define __CXGB4_SCHED_H
38 #include <linux/spinlock.h>
39 #include <linux/atomic.h>
41 #define SCHED_CLS_NONE 0xff
55 struct ch_sched_params info;
56 spinlock_t lock; /* Per class lock */
60 struct sched_table { /* per port scheduling table */
62 rwlock_t rw_lock; /* Table lock */
63 struct sched_class tab[0];
66 static inline bool can_sched(struct net_device *dev)
68 struct port_info *pi = netdev2pinfo(dev);
70 return !pi->sched_tbl ? false : true;
73 static inline bool valid_class_id(struct net_device *dev, u8 class_id)
75 struct port_info *pi = netdev2pinfo(dev);
77 if ((class_id > pi->sched_tbl->sched_size - 1) &&
78 (class_id != SCHED_CLS_NONE))
84 struct sched_class *cxgb4_sched_class_alloc(struct net_device *dev,
85 struct ch_sched_params *p);
87 struct sched_table *t4_init_sched(unsigned int size);
88 void t4_cleanup_sched(struct adapter *adap);
89 #endif /* __CXGB4_SCHED_H */