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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/*-
* BSD LICENSE
*
* Copyright(c) 2014-2015 Broadcom Corporation.
* All rights reserved.
*
* 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.
* * Neither the name of Broadcom Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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.
*/
#include <inttypes.h>
#include <rte_malloc.h>
#include "bnxt.h"
#include "bnxt_cpr.h"
#include "bnxt_irq.h"
#include "bnxt_ring.h"
#include "hsi_struct_def_dpdk.h"
/*
* Interrupts
*/
static void bnxt_int_handler(void *param)
{
struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)param;
struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
struct cmpl_base *cmp;
uint32_t raw_cons;
uint32_t cons;
if (cpr == NULL)
return;
raw_cons = cpr->cp_raw_cons;
while (1) {
if (!cpr || !cpr->cp_ring_struct)
return;
cons = RING_CMP(cpr->cp_ring_struct, raw_cons);
cmp = &cpr->cp_desc_ring[cons];
if (!CMP_VALID(cmp, raw_cons, cpr->cp_ring_struct))
break;
switch (CMP_TYPE(cmp)) {
case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
/* Handle any async event */
bnxt_handle_async_event(bp, cmp);
break;
case CMPL_BASE_TYPE_HWRM_FWD_REQ:
/* Handle HWRM forwarded responses */
bnxt_handle_fwd_req(bp, cmp);
break;
default:
/* Ignore any other events */
if (cmp->type & rte_cpu_to_le_16(0x01)) {
if (!CMP_VALID(cmp, raw_cons,
cpr->cp_ring_struct))
goto no_more;
}
PMD_DRV_LOG(INFO,
"Ignoring %02x completion\n", CMP_TYPE(cmp));
break;
}
raw_cons = NEXT_RAW_CMP(raw_cons);
};
no_more:
cpr->cp_raw_cons = raw_cons;
B_CP_DB_REARM(cpr, cpr->cp_raw_cons);
}
void bnxt_free_int(struct bnxt *bp)
{
struct bnxt_irq *irq;
irq = bp->irq_tbl;
if (irq) {
if (irq->requested) {
rte_intr_disable(&bp->pdev->intr_handle);
rte_intr_callback_unregister(&bp->pdev->intr_handle,
irq->handler,
(void *)bp->eth_dev);
irq->requested = 0;
}
rte_free((void *)bp->irq_tbl);
bp->irq_tbl = NULL;
}
}
void bnxt_disable_int(struct bnxt *bp)
{
struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
/* Only the default completion ring */
if (cpr != NULL && cpr->cp_doorbell != NULL)
B_CP_DB_DISARM(cpr);
}
void bnxt_enable_int(struct bnxt *bp)
{
struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
B_CP_DB_ARM(cpr);
}
int bnxt_setup_int(struct bnxt *bp)
{
uint16_t total_vecs;
const int len = sizeof(bp->irq_tbl[0].name);
int i, rc = 0;
/* DPDK host only supports 1 MSI-X vector */
total_vecs = 1;
bp->irq_tbl = rte_calloc("bnxt_irq_tbl", total_vecs,
sizeof(struct bnxt_irq), 0);
if (bp->irq_tbl) {
for (i = 0; i < total_vecs; i++) {
bp->irq_tbl[i].vector = i;
snprintf(bp->irq_tbl[i].name, len,
"%s-%d", bp->eth_dev->device->name, i);
bp->irq_tbl[i].handler = bnxt_int_handler;
}
} else {
rc = -ENOMEM;
goto setup_exit;
}
return 0;
setup_exit:
PMD_DRV_LOG(ERR, "bnxt_irq_tbl setup failed\n");
return rc;
}
int bnxt_request_int(struct bnxt *bp)
{
int rc = 0;
struct bnxt_irq *irq = bp->irq_tbl;
rte_intr_callback_register(&bp->pdev->intr_handle, irq->handler,
(void *)bp->eth_dev);
rte_intr_enable(&bp->pdev->intr_handle);
irq->requested = 1;
return rc;
}
|
