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
|
/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2021 Oxide Computer Company
*/
#include "ena_hw.h"
#include "ena.h"
uint32_t
ena_hw_bar_read32(const ena_t *ena, const uint16_t offset)
{
caddr_t addr = ena->ena_reg_base + offset;
return (ena_hw_abs_read32(ena, (uint32_t *)addr));
}
uint32_t
ena_hw_abs_read32(const ena_t *ena, uint32_t *addr)
{
VERIFY3U(addr, >=, ena->ena_reg_base);
VERIFY3U(addr, <, ena->ena_reg_base + (ena->ena_reg_size - 4));
return (ddi_get32(ena->ena_reg_hdl, addr));
}
void
ena_hw_bar_write32(const ena_t *ena, const uint16_t offset, const uint32_t val)
{
caddr_t addr = ena->ena_reg_base + offset;
ena_hw_abs_write32(ena, (uint32_t *)addr, val);
}
void
ena_hw_abs_write32(const ena_t *ena, uint32_t *addr, const uint32_t val)
{
VERIFY3P(ena, !=, NULL);
VERIFY3P(addr, !=, NULL);
VERIFY3U(addr, >=, ena->ena_reg_base);
VERIFY3U(addr, <, ena->ena_reg_base + (ena->ena_reg_size - 4));
ddi_put32(ena->ena_reg_hdl, addr, val);
}
int
enahw_resp_status_to_errno(ena_t *ena, enahw_resp_status_t status)
{
int ret = 0;
switch (status) {
case ENAHW_RESP_SUCCESS:
break;
case ENAHW_RESP_RESOURCE_ALLOCATION_FAILURE:
ret = ENOMEM;
break;
case ENAHW_RESP_UNSUPPORTED_OPCODE:
ret = ENOTSUP;
break;
case ENAHW_RESP_BAD_OPCODE:
case ENAHW_RESP_MALFORMED_REQUEST:
case ENAHW_RESP_ILLEGAL_PARAMETER:
ret = EINVAL;
break;
case ENAHW_RESP_RESOURCE_BUSY:
ret = EAGAIN;
break;
case ENAHW_RESP_UNKNOWN_ERROR:
default:
/*
* If the device presents us with an "unknwon error"
* code, or the status code is undefined, then we log
* an error and convert it to EIO.
*/
ena_err(ena, "unexpected status code: %d", status);
ret = EIO;
break;
}
return (ret);
}
|
