1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*-
* BSD LICENSE
*
* Copyright (c) 2016-2017 Solarflare Communications Inc.
* All rights reserved.
*
* This software was jointly developed between OKTET Labs (under contract
* for Solarflare) and Solarflare Communications, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SFC_EV_H_
#define _SFC_EV_H_
#include <rte_ethdev.h>
#include "efx.h"
#include "sfc.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Number of entries in the management event queue */
#define SFC_MGMT_EVQ_ENTRIES (EFX_EVQ_MINNEVS)
struct sfc_adapter;
struct sfc_dp_rxq;
struct sfc_dp_txq;
enum sfc_evq_state {
SFC_EVQ_UNINITIALIZED = 0,
SFC_EVQ_INITIALIZED,
SFC_EVQ_STARTING,
SFC_EVQ_STARTED,
SFC_EVQ_NSTATES
};
enum sfc_evq_type {
SFC_EVQ_TYPE_MGMT = 0,
SFC_EVQ_TYPE_RX,
SFC_EVQ_TYPE_TX,
SFC_EVQ_NTYPES
};
struct sfc_evq {
/* Used on datapath */
efx_evq_t *common;
const efx_ev_callbacks_t *callbacks;
unsigned int read_ptr;
boolean_t exception;
efsys_mem_t mem;
struct sfc_dp_rxq *dp_rxq;
struct sfc_dp_txq *dp_txq;
/* Not used on datapath */
struct sfc_adapter *sa;
unsigned int evq_index;
enum sfc_evq_state init_state;
enum sfc_evq_type type;
unsigned int entries;
};
/*
* Functions below define event queue to transmit/receive queue and vice
* versa mapping.
* Own event queue is allocated for management, each Rx and each Tx queue.
* Zero event queue is used for management events.
* Rx event queues from 1 to RxQ number follow management event queue.
* Tx event queues follow Rx event queues.
*/
static inline unsigned int
sfc_evq_index_by_rxq_sw_index(__rte_unused struct sfc_adapter *sa,
unsigned int rxq_sw_index)
{
return 1 + rxq_sw_index;
}
static inline unsigned int
sfc_evq_index_by_txq_sw_index(struct sfc_adapter *sa, unsigned int txq_sw_index)
{
return 1 + sa->eth_dev->data->nb_rx_queues + txq_sw_index;
}
int sfc_ev_attach(struct sfc_adapter *sa);
void sfc_ev_detach(struct sfc_adapter *sa);
int sfc_ev_start(struct sfc_adapter *sa);
void sfc_ev_stop(struct sfc_adapter *sa);
int sfc_ev_qinit(struct sfc_adapter *sa,
enum sfc_evq_type type, unsigned int type_index,
unsigned int entries, int socket_id, struct sfc_evq **evqp);
void sfc_ev_qfini(struct sfc_evq *evq);
int sfc_ev_qstart(struct sfc_evq *evq, unsigned int hw_index);
void sfc_ev_qstop(struct sfc_evq *evq);
int sfc_ev_qprime(struct sfc_evq *evq);
void sfc_ev_qpoll(struct sfc_evq *evq);
void sfc_ev_mgmt_qpoll(struct sfc_adapter *sa);
#ifdef __cplusplus
}
#endif
#endif /* _SFC_EV_H_ */
|
