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119 lines
3.3 KiB
119 lines
3.3 KiB
/* |
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* This file is part of the Chelsio T4 Ethernet driver for Linux. |
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* |
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* Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the |
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* OpenIB.org BSD license below: |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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#ifndef __CXGB4_SCHED_H |
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#define __CXGB4_SCHED_H |
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#include <linux/spinlock.h> |
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#include <linux/atomic.h> |
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#define SCHED_CLS_NONE 0xff |
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#define FW_SCHED_CLS_NONE 0xffffffff |
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/* Max rate that can be set to a scheduling class is 100 Gbps */ |
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#define SCHED_MAX_RATE_KBPS 100000000U |
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enum { |
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SCHED_STATE_ACTIVE, |
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SCHED_STATE_UNUSED, |
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}; |
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enum sched_fw_ops { |
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SCHED_FW_OP_ADD, |
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SCHED_FW_OP_DEL, |
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}; |
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enum sched_bind_type { |
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SCHED_QUEUE, |
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SCHED_FLOWC, |
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}; |
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struct sched_queue_entry { |
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struct list_head list; |
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unsigned int cntxt_id; |
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struct ch_sched_queue param; |
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}; |
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struct sched_flowc_entry { |
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struct list_head list; |
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struct ch_sched_flowc param; |
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}; |
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struct sched_class { |
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u8 state; |
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u8 idx; |
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struct ch_sched_params info; |
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enum sched_bind_type bind_type; |
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struct list_head entry_list; |
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atomic_t refcnt; |
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}; |
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struct sched_table { /* per port scheduling table */ |
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u8 sched_size; |
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struct sched_class tab[]; |
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}; |
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static inline bool can_sched(struct net_device *dev) |
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{ |
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struct port_info *pi = netdev2pinfo(dev); |
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return !pi->sched_tbl ? false : true; |
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} |
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static inline bool valid_class_id(struct net_device *dev, u8 class_id) |
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{ |
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struct port_info *pi = netdev2pinfo(dev); |
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if ((class_id > pi->sched_tbl->sched_size - 1) && |
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(class_id != SCHED_CLS_NONE)) |
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return false; |
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return true; |
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} |
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struct sched_class *cxgb4_sched_queue_lookup(struct net_device *dev, |
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struct ch_sched_queue *p); |
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int cxgb4_sched_class_bind(struct net_device *dev, void *arg, |
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enum sched_bind_type type); |
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int cxgb4_sched_class_unbind(struct net_device *dev, void *arg, |
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enum sched_bind_type type); |
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struct sched_class *cxgb4_sched_class_alloc(struct net_device *dev, |
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struct ch_sched_params *p); |
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void cxgb4_sched_class_free(struct net_device *dev, u8 classid); |
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struct sched_table *t4_init_sched(unsigned int size); |
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void t4_cleanup_sched(struct adapter *adap); |
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#endif /* __CXGB4_SCHED_H */
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