/* * This file is part of the Chelsio T4 Ethernet driver for Linux. * * Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef __CXGB4_SCHED_H #define __CXGB4_SCHED_H #include #include #define SCHED_CLS_NONE 0xff enum { SCHED_STATE_ACTIVE, SCHED_STATE_UNUSED, }; enum sched_fw_ops { SCHED_FW_OP_ADD, }; struct sched_class { u8 state; u8 idx; struct ch_sched_params info; spinlock_t lock; /* Per class lock */ atomic_t refcnt; }; struct sched_table { /* per port scheduling table */ u8 sched_size; rwlock_t rw_lock; /* Table lock */ struct sched_class tab[0]; }; static inline bool can_sched(struct net_device *dev) { struct port_info *pi = netdev2pinfo(dev); return !pi->sched_tbl ? false : true; } static inline bool valid_class_id(struct net_device *dev, u8 class_id) { struct port_info *pi = netdev2pinfo(dev); if ((class_id > pi->sched_tbl->sched_size - 1) && (class_id != SCHED_CLS_NONE)) return false; return true; } struct sched_class *cxgb4_sched_class_alloc(struct net_device *dev, struct ch_sched_params *p); struct sched_table *t4_init_sched(unsigned int size); void t4_cleanup_sched(struct adapter *adap); #endif /* __CXGB4_SCHED_H */