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
|
/***********************license start***************
* Author: Cavium Networks
*
* Contact: support@caviumnetworks.com
* This file is part of the OCTEON SDK
*
* Copyright (c) 2003-2008 Cavium Networks
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 2, as
* published by the Free Software Foundation.
*
* This file is distributed in the hope that it will be useful, but
* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
* NONINFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this file; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* or visit http://www.gnu.org/licenses/.
*
* This file may also be available under a different license from Cavium.
* Contact Cavium Networks for more information
***********************license end**************************************/
/*
* File defining checks for different Octeon features.
*/
#ifndef __OCTEON_FEATURE_H__
#define __OCTEON_FEATURE_H__
enum octeon_feature {
/*
* Octeon models in the CN5XXX family and higher support
* atomic add instructions to memory (saa/saad).
*/
OCTEON_FEATURE_SAAD,
/* Does this Octeon support the ZIP offload engine? */
OCTEON_FEATURE_ZIP,
/* Does this Octeon support crypto acceleration using COP2? */
OCTEON_FEATURE_CRYPTO,
/* Does this Octeon support PCI express? */
OCTEON_FEATURE_PCIE,
/* Some Octeon models support internal memory for storing
* cryptographic keys */
OCTEON_FEATURE_KEY_MEMORY,
/* Octeon has a LED controller for banks of external LEDs */
OCTEON_FEATURE_LED_CONTROLLER,
/* Octeon has a trace buffer */
OCTEON_FEATURE_TRA,
/* Octeon has a management port */
OCTEON_FEATURE_MGMT_PORT,
/* Octeon has a raid unit */
OCTEON_FEATURE_RAID,
/* Octeon has a builtin USB */
OCTEON_FEATURE_USB,
/* Octeon IPD can run without using work queue entries */
OCTEON_FEATURE_NO_WPTR,
/* Octeon has DFA state machines */
OCTEON_FEATURE_DFA,
/* Octeon MDIO block supports clause 45 transactions for 10
* Gig support */
OCTEON_FEATURE_MDIO_CLAUSE_45,
};
static inline int cvmx_fuse_read(int fuse);
/**
* Determine if the current Octeon supports a specific feature. These
* checks have been optimized to be fairly quick, but they should still
* be kept out of fast path code.
*
* @feature: Feature to check for. This should always be a constant so the
* compiler can remove the switch statement through optimization.
*
* Returns Non zero if the feature exists. Zero if the feature does not
* exist.
*/
static inline int octeon_has_feature(enum octeon_feature feature)
{
switch (feature) {
case OCTEON_FEATURE_SAAD:
return !OCTEON_IS_MODEL(OCTEON_CN3XXX);
case OCTEON_FEATURE_ZIP:
if (OCTEON_IS_MODEL(OCTEON_CN30XX)
|| OCTEON_IS_MODEL(OCTEON_CN50XX)
|| OCTEON_IS_MODEL(OCTEON_CN52XX))
return 0;
else if (OCTEON_IS_MODEL(OCTEON_CN38XX_PASS1))
return 1;
else
return !cvmx_fuse_read(121);
case OCTEON_FEATURE_CRYPTO:
return !cvmx_fuse_read(90);
case OCTEON_FEATURE_PCIE:
return OCTEON_IS_MODEL(OCTEON_CN56XX)
|| OCTEON_IS_MODEL(OCTEON_CN52XX);
case OCTEON_FEATURE_KEY_MEMORY:
case OCTEON_FEATURE_LED_CONTROLLER:
return OCTEON_IS_MODEL(OCTEON_CN38XX)
|| OCTEON_IS_MODEL(OCTEON_CN58XX)
|| OCTEON_IS_MODEL(OCTEON_CN56XX);
case OCTEON_FEATURE_TRA:
return !(OCTEON_IS_MODEL(OCTEON_CN30XX)
|| OCTEON_IS_MODEL(OCTEON_CN50XX));
case OCTEON_FEATURE_MGMT_PORT:
return OCTEON_IS_MODEL(OCTEON_CN56XX)
|| OCTEON_IS_MODEL(OCTEON_CN52XX);
case OCTEON_FEATURE_RAID:
return OCTEON_IS_MODEL(OCTEON_CN56XX)
|| OCTEON_IS_MODEL(OCTEON_CN52XX);
case OCTEON_FEATURE_USB:
return !(OCTEON_IS_MODEL(OCTEON_CN38XX)
|| OCTEON_IS_MODEL(OCTEON_CN58XX));
case OCTEON_FEATURE_NO_WPTR:
return (OCTEON_IS_MODEL(OCTEON_CN56XX)
|| OCTEON_IS_MODEL(OCTEON_CN52XX))
&& !OCTEON_IS_MODEL(OCTEON_CN56XX_PASS1_X)
&& !OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_X);
case OCTEON_FEATURE_DFA:
if (!OCTEON_IS_MODEL(OCTEON_CN38XX)
&& !OCTEON_IS_MODEL(OCTEON_CN31XX)
&& !OCTEON_IS_MODEL(OCTEON_CN58XX))
return 0;
else if (OCTEON_IS_MODEL(OCTEON_CN3020))
return 0;
else if (OCTEON_IS_MODEL(OCTEON_CN38XX_PASS1))
return 1;
else
return !cvmx_fuse_read(120);
case OCTEON_FEATURE_MDIO_CLAUSE_45:
return !(OCTEON_IS_MODEL(OCTEON_CN3XXX)
|| OCTEON_IS_MODEL(OCTEON_CN58XX)
|| OCTEON_IS_MODEL(OCTEON_CN50XX));
}
return 0;
}
#endif /* __OCTEON_FEATURE_H__ */
|
