1/* SPDX-License-Identifier: GPL-2.0-only */
2/* Copyright (C) 2019 Chelsio Communications. All rights reserved. */
3
4#ifndef __CXGB4_TC_MQPRIO_H__
5#define __CXGB4_TC_MQPRIO_H__
6
7#include <net/pkt_sched.h>
8
9#define CXGB4_EOSW_TXQ_DEFAULT_DESC_NUM 128
10
11#define CXGB4_EOHW_TXQ_DEFAULT_DESC_NUM 1024
12
13#define CXGB4_EOHW_RXQ_DEFAULT_DESC_NUM 1024
14#define CXGB4_EOHW_RXQ_DEFAULT_DESC_SIZE 64
15#define CXGB4_EOHW_RXQ_DEFAULT_INTR_USEC 5
16#define CXGB4_EOHW_RXQ_DEFAULT_PKT_CNT 8
17
18#define CXGB4_EOHW_FLQ_DEFAULT_DESC_NUM 72
19
20#define CXGB4_FLOWC_WAIT_TIMEOUT (5 * HZ)
21
22enum cxgb4_mqprio_state {
23 CXGB4_MQPRIO_STATE_DISABLED = 0,
24 CXGB4_MQPRIO_STATE_ACTIVE,
25};
26
27struct cxgb4_tc_port_mqprio {
28 enum cxgb4_mqprio_state state; /* Current MQPRIO offload state */
29 struct tc_mqprio_qopt_offload mqprio; /* MQPRIO offload params */
30 struct sge_eosw_txq *eosw_txq; /* Netdev SW Tx queue array */
31 u8 tc_hwtc_map[TC_QOPT_MAX_QUEUE]; /* MQPRIO tc to hardware tc map */
32};
33
34struct cxgb4_tc_mqprio {
35 refcount_t refcnt; /* Refcount for adapter-wide resources */
36 struct mutex mqprio_mutex; /* Lock for accessing MQPRIO info */
37 struct cxgb4_tc_port_mqprio *port_mqprio; /* Per port MQPRIO info */
38};
39
40int cxgb4_setup_tc_mqprio(struct net_device *dev,
41 struct tc_mqprio_qopt_offload *mqprio);
42void cxgb4_mqprio_stop_offload(struct adapter *adap);
43int cxgb4_init_tc_mqprio(struct adapter *adap);
44void cxgb4_cleanup_tc_mqprio(struct adapter *adap);
45#endif /* __CXGB4_TC_MQPRIO_H__ */
46

source code of linux/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.h