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
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
* Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved.
* Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/* QSFP support common definitions, for ib_qib driver */
#define QSFP_DEV 0xA0
#define QSFP_PWR_LAG_MSEC 2000
/*
* Below are masks for various QSFP signals, for Port 1.
* Port2 equivalents are shifted by QSFP_GPIO_PORT2_SHIFT.
* _N means asserted low
*/
#define QSFP_GPIO_MOD_SEL_N (4)
#define QSFP_GPIO_MOD_PRS_N (8)
#define QSFP_GPIO_INT_N (0x10)
#define QSFP_GPIO_MOD_RST_N (0x20)
#define QSFP_GPIO_LP_MODE (0x40)
#define QSFP_GPIO_PORT2_SHIFT 5
#define QSFP_PAGESIZE 128
/* Defined fields that QLogic requires of qualified cables */
/* Byte 0 is Identifier, not checked */
/* Byte 1 is reserved "status MSB" */
/* Byte 2 is "status LSB" We only care that D2 "Flat Mem" is set. */
/*
* Rest of first 128 not used, although 127 is reserved for page select
* if module is not "Flat memory".
*/
/* Byte 128 is Identifier: must be 0x0c for QSFP, or 0x0d for QSFP+ */
#define QSFP_MOD_ID_OFFS 128
/*
* Byte 129 is "Extended Identifier". We only care about D7,D6: Power class
* 0:1.5W, 1:2.0W, 2:2.5W, 3:3.5W
*/
#define QSFP_MOD_PWR_OFFS 129
/* Byte 130 is Connector type. Not QLogic req'd */
/* Bytes 131..138 are Transceiver types, bit maps for various tech, none IB */
/* Byte 139 is encoding. code 0x01 is 8b10b. Not QLogic req'd */
/* byte 140 is nominal bit-rate, in units of 100Mbits/sec Not QLogic req'd */
/* Byte 141 is Extended Rate Select. Not QLogic req'd */
/* Bytes 142..145 are lengths for various fiber types. Not QLogic req'd */
/* Byte 146 is length for Copper. Units of 1 meter */
#define QSFP_MOD_LEN_OFFS 146
/*
* Byte 147 is Device technology. D0..3 not Qlogc req'd
* D4..7 select from 15 choices, translated by table:
*/
#define QSFP_MOD_TECH_OFFS 147
extern const char *const qib_qsfp_devtech[16];
/* Active Equalization includes fiber, copper full EQ, and copper near Eq */
#define QSFP_IS_ACTIVE(tech) ((0xA2FF >> ((tech) >> 4)) & 1)
/* Active Equalization includes fiber, copper full EQ, and copper far Eq */
#define QSFP_IS_ACTIVE_FAR(tech) ((0x32FF >> ((tech) >> 4)) & 1)
/* Attenuation should be valid for copper other than full/near Eq */
#define QSFP_HAS_ATTEN(tech) ((0x4D00 >> ((tech) >> 4)) & 1)
/* Length is only valid if technology is "copper" */
#define QSFP_IS_CU(tech) ((0xED00 >> ((tech) >> 4)) & 1)
#define QSFP_TECH_1490 9
#define QSFP_OUI(oui) (((unsigned)oui[0] << 16) | ((unsigned)oui[1] << 8) | \
oui[2])
#define QSFP_OUI_AMPHENOL 0x415048
#define QSFP_OUI_FINISAR 0x009065
#define QSFP_OUI_GORE 0x002177
/* Bytes 148..163 are Vendor Name, Left-justified Blank-filled */
#define QSFP_VEND_OFFS 148
#define QSFP_VEND_LEN 16
/* Byte 164 is IB Extended tranceiver codes Bits D0..3 are SDR,DDR,QDR,EDR */
#define QSFP_IBXCV_OFFS 164
/* Bytes 165..167 are Vendor OUI number */
#define QSFP_VOUI_OFFS 165
#define QSFP_VOUI_LEN 3
/* Bytes 168..183 are Vendor Part Number, string */
#define QSFP_PN_OFFS 168
#define QSFP_PN_LEN 16
/* Bytes 184,185 are Vendor Rev. Left Justified, Blank-filled */
#define QSFP_REV_OFFS 184
#define QSFP_REV_LEN 2
/*
* Bytes 186,187 are Wavelength, if Optical. Not Qlogic req'd
* If copper, they are attenuation in dB:
* Byte 186 is at 2.5Gb/sec (SDR), Byte 187 at 5.0Gb/sec (DDR)
*/
#define QSFP_ATTEN_OFFS 186
#define QSFP_ATTEN_LEN 2
/* Bytes 188,189 are Wavelength tolerance, not QLogic req'd */
/* Byte 190 is Max Case Temp. Not QLogic req'd */
/* Byte 191 is LSB of sum of bytes 128..190. Not QLogic req'd */
#define QSFP_CC_OFFS 191
/* Bytes 192..195 are Options implemented in qsfp. Not Qlogic req'd */
/* Bytes 196..211 are Serial Number, String */
#define QSFP_SN_OFFS 196
#define QSFP_SN_LEN 16
/* Bytes 212..219 are date-code YYMMDD (MM==1 for Jan) */
#define QSFP_DATE_OFFS 212
#define QSFP_DATE_LEN 6
/* Bytes 218,219 are optional lot-code, string */
#define QSFP_LOT_OFFS 218
#define QSFP_LOT_LEN 2
/* Bytes 220, 221 indicate monitoring options, Not QLogic req'd */
/* Byte 223 is LSB of sum of bytes 192..222 */
#define QSFP_CC_EXT_OFFS 223
/*
* struct qib_qsfp_data encapsulates state of QSFP device for one port.
* it will be part of port-chip-specific data if a board supports QSFP.
*
* Since multiple board-types use QSFP, and their pport_data structs
* differ (in the chip-specific section), we need a pointer to its head.
*
* Avoiding premature optimization, we will have one work_struct per port,
* and let the (increasingly inaccurately named) eep_lock arbitrate
* access to common resources.
*
*/
/*
* Hold the parts of the onboard EEPROM that we care about, so we aren't
* coonstantly bit-boffing
*/
struct qib_qsfp_cache {
u8 id; /* must be 0x0C or 0x0D; 0 indicates invalid EEPROM read */
u8 pwr; /* in D6,7 */
u8 len; /* in meters, Cu only */
u8 tech;
char vendor[QSFP_VEND_LEN];
u8 xt_xcv; /* Ext. tranceiver codes, 4 lsbs are IB speed supported */
u8 oui[QSFP_VOUI_LEN];
u8 partnum[QSFP_PN_LEN];
u8 rev[QSFP_REV_LEN];
u8 atten[QSFP_ATTEN_LEN];
u8 cks1; /* Checksum of bytes 128..190 */
u8 serial[QSFP_SN_LEN];
u8 date[QSFP_DATE_LEN];
u8 lot[QSFP_LOT_LEN];
u8 cks2; /* Checsum of bytes 192..222 */
};
#define QSFP_PWR(pbyte) (((pbyte) >> 6) & 3)
#define QSFP_ATTEN_SDR(attenarray) (attenarray[0])
#define QSFP_ATTEN_DDR(attenarray) (attenarray[1])
struct qib_qsfp_data {
/* Helps to find our way */
struct qib_pportdata *ppd;
struct work_struct work;
struct qib_qsfp_cache cache;
u64 t_insert;
};
extern int qib_refresh_qsfp_cache(struct qib_pportdata *ppd,
struct qib_qsfp_cache *cp);
extern void qib_qsfp_init(struct qib_qsfp_data *qd,
void (*fevent)(struct work_struct *));
extern void qib_qsfp_deinit(struct qib_qsfp_data *qd);
|
