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f931551b RC |
1 | /* |
2 | * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved. | |
3 | * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. | |
4 | * | |
5 | * This software is available to you under a choice of one of two | |
6 | * licenses. You may choose to be licensed under the terms of the GNU | |
7 | * General Public License (GPL) Version 2, available from the file | |
8 | * COPYING in the main directory of this source tree, or the | |
9 | * OpenIB.org BSD license below: | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or | |
12 | * without modification, are permitted provided that the following | |
13 | * conditions are met: | |
14 | * | |
15 | * - Redistributions of source code must retain the above | |
16 | * copyright notice, this list of conditions and the following | |
17 | * disclaimer. | |
18 | * | |
19 | * - Redistributions in binary form must reproduce the above | |
20 | * copyright notice, this list of conditions and the following | |
21 | * disclaimer in the documentation and/or other materials | |
22 | * provided with the distribution. | |
23 | * | |
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
25 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
26 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
27 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
28 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
29 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
30 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
31 | * SOFTWARE. | |
32 | */ | |
33 | /* QSFP support common definitions, for ib_qib driver */ | |
34 | ||
35 | #define QSFP_DEV 0xA0 | |
36 | #define QSFP_PWR_LAG_MSEC 2000 | |
dde05cbd | 37 | #define QSFP_MODPRS_LAG_MSEC 20 |
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38 | |
39 | /* | |
40 | * Below are masks for various QSFP signals, for Port 1. | |
41 | * Port2 equivalents are shifted by QSFP_GPIO_PORT2_SHIFT. | |
42 | * _N means asserted low | |
43 | */ | |
44 | #define QSFP_GPIO_MOD_SEL_N (4) | |
45 | #define QSFP_GPIO_MOD_PRS_N (8) | |
46 | #define QSFP_GPIO_INT_N (0x10) | |
47 | #define QSFP_GPIO_MOD_RST_N (0x20) | |
48 | #define QSFP_GPIO_LP_MODE (0x40) | |
49 | #define QSFP_GPIO_PORT2_SHIFT 5 | |
50 | ||
51 | #define QSFP_PAGESIZE 128 | |
52 | /* Defined fields that QLogic requires of qualified cables */ | |
53 | /* Byte 0 is Identifier, not checked */ | |
54 | /* Byte 1 is reserved "status MSB" */ | |
55 | /* Byte 2 is "status LSB" We only care that D2 "Flat Mem" is set. */ | |
56 | /* | |
57 | * Rest of first 128 not used, although 127 is reserved for page select | |
58 | * if module is not "Flat memory". | |
59 | */ | |
60 | /* Byte 128 is Identifier: must be 0x0c for QSFP, or 0x0d for QSFP+ */ | |
61 | #define QSFP_MOD_ID_OFFS 128 | |
62 | /* | |
63 | * Byte 129 is "Extended Identifier". We only care about D7,D6: Power class | |
64 | * 0:1.5W, 1:2.0W, 2:2.5W, 3:3.5W | |
65 | */ | |
66 | #define QSFP_MOD_PWR_OFFS 129 | |
67 | /* Byte 130 is Connector type. Not QLogic req'd */ | |
68 | /* Bytes 131..138 are Transceiver types, bit maps for various tech, none IB */ | |
69 | /* Byte 139 is encoding. code 0x01 is 8b10b. Not QLogic req'd */ | |
70 | /* byte 140 is nominal bit-rate, in units of 100Mbits/sec Not QLogic req'd */ | |
71 | /* Byte 141 is Extended Rate Select. Not QLogic req'd */ | |
72 | /* Bytes 142..145 are lengths for various fiber types. Not QLogic req'd */ | |
73 | /* Byte 146 is length for Copper. Units of 1 meter */ | |
74 | #define QSFP_MOD_LEN_OFFS 146 | |
75 | /* | |
76 | * Byte 147 is Device technology. D0..3 not Qlogc req'd | |
77 | * D4..7 select from 15 choices, translated by table: | |
78 | */ | |
79 | #define QSFP_MOD_TECH_OFFS 147 | |
80 | extern const char *const qib_qsfp_devtech[16]; | |
81 | /* Active Equalization includes fiber, copper full EQ, and copper near Eq */ | |
82 | #define QSFP_IS_ACTIVE(tech) ((0xA2FF >> ((tech) >> 4)) & 1) | |
4634b794 MH |
83 | /* Active Equalization includes fiber, copper full EQ, and copper far Eq */ |
84 | #define QSFP_IS_ACTIVE_FAR(tech) ((0x32FF >> ((tech) >> 4)) & 1) | |
f931551b RC |
85 | /* Attenuation should be valid for copper other than full/near Eq */ |
86 | #define QSFP_HAS_ATTEN(tech) ((0x4D00 >> ((tech) >> 4)) & 1) | |
87 | /* Length is only valid if technology is "copper" */ | |
88 | #define QSFP_IS_CU(tech) ((0xED00 >> ((tech) >> 4)) & 1) | |
89 | #define QSFP_TECH_1490 9 | |
90 | ||
91 | #define QSFP_OUI(oui) (((unsigned)oui[0] << 16) | ((unsigned)oui[1] << 8) | \ | |
92 | oui[2]) | |
93 | #define QSFP_OUI_AMPHENOL 0x415048 | |
94 | #define QSFP_OUI_FINISAR 0x009065 | |
95 | #define QSFP_OUI_GORE 0x002177 | |
96 | ||
97 | /* Bytes 148..163 are Vendor Name, Left-justified Blank-filled */ | |
98 | #define QSFP_VEND_OFFS 148 | |
99 | #define QSFP_VEND_LEN 16 | |
100 | /* Byte 164 is IB Extended tranceiver codes Bits D0..3 are SDR,DDR,QDR,EDR */ | |
101 | #define QSFP_IBXCV_OFFS 164 | |
102 | /* Bytes 165..167 are Vendor OUI number */ | |
103 | #define QSFP_VOUI_OFFS 165 | |
104 | #define QSFP_VOUI_LEN 3 | |
105 | /* Bytes 168..183 are Vendor Part Number, string */ | |
106 | #define QSFP_PN_OFFS 168 | |
107 | #define QSFP_PN_LEN 16 | |
108 | /* Bytes 184,185 are Vendor Rev. Left Justified, Blank-filled */ | |
109 | #define QSFP_REV_OFFS 184 | |
110 | #define QSFP_REV_LEN 2 | |
111 | /* | |
112 | * Bytes 186,187 are Wavelength, if Optical. Not Qlogic req'd | |
113 | * If copper, they are attenuation in dB: | |
114 | * Byte 186 is at 2.5Gb/sec (SDR), Byte 187 at 5.0Gb/sec (DDR) | |
115 | */ | |
116 | #define QSFP_ATTEN_OFFS 186 | |
117 | #define QSFP_ATTEN_LEN 2 | |
118 | /* Bytes 188,189 are Wavelength tolerance, not QLogic req'd */ | |
119 | /* Byte 190 is Max Case Temp. Not QLogic req'd */ | |
120 | /* Byte 191 is LSB of sum of bytes 128..190. Not QLogic req'd */ | |
121 | #define QSFP_CC_OFFS 191 | |
122 | /* Bytes 192..195 are Options implemented in qsfp. Not Qlogic req'd */ | |
123 | /* Bytes 196..211 are Serial Number, String */ | |
124 | #define QSFP_SN_OFFS 196 | |
125 | #define QSFP_SN_LEN 16 | |
126 | /* Bytes 212..219 are date-code YYMMDD (MM==1 for Jan) */ | |
127 | #define QSFP_DATE_OFFS 212 | |
128 | #define QSFP_DATE_LEN 6 | |
129 | /* Bytes 218,219 are optional lot-code, string */ | |
130 | #define QSFP_LOT_OFFS 218 | |
131 | #define QSFP_LOT_LEN 2 | |
132 | /* Bytes 220, 221 indicate monitoring options, Not QLogic req'd */ | |
133 | /* Byte 223 is LSB of sum of bytes 192..222 */ | |
134 | #define QSFP_CC_EXT_OFFS 223 | |
135 | ||
136 | /* | |
137 | * struct qib_qsfp_data encapsulates state of QSFP device for one port. | |
138 | * it will be part of port-chip-specific data if a board supports QSFP. | |
139 | * | |
140 | * Since multiple board-types use QSFP, and their pport_data structs | |
141 | * differ (in the chip-specific section), we need a pointer to its head. | |
142 | * | |
143 | * Avoiding premature optimization, we will have one work_struct per port, | |
144 | * and let the (increasingly inaccurately named) eep_lock arbitrate | |
145 | * access to common resources. | |
146 | * | |
147 | */ | |
148 | ||
149 | /* | |
150 | * Hold the parts of the onboard EEPROM that we care about, so we aren't | |
151 | * coonstantly bit-boffing | |
152 | */ | |
153 | struct qib_qsfp_cache { | |
154 | u8 id; /* must be 0x0C or 0x0D; 0 indicates invalid EEPROM read */ | |
155 | u8 pwr; /* in D6,7 */ | |
156 | u8 len; /* in meters, Cu only */ | |
157 | u8 tech; | |
158 | char vendor[QSFP_VEND_LEN]; | |
159 | u8 xt_xcv; /* Ext. tranceiver codes, 4 lsbs are IB speed supported */ | |
160 | u8 oui[QSFP_VOUI_LEN]; | |
161 | u8 partnum[QSFP_PN_LEN]; | |
162 | u8 rev[QSFP_REV_LEN]; | |
163 | u8 atten[QSFP_ATTEN_LEN]; | |
164 | u8 cks1; /* Checksum of bytes 128..190 */ | |
165 | u8 serial[QSFP_SN_LEN]; | |
166 | u8 date[QSFP_DATE_LEN]; | |
167 | u8 lot[QSFP_LOT_LEN]; | |
168 | u8 cks2; /* Checsum of bytes 192..222 */ | |
169 | }; | |
170 | ||
171 | #define QSFP_PWR(pbyte) (((pbyte) >> 6) & 3) | |
172 | #define QSFP_ATTEN_SDR(attenarray) (attenarray[0]) | |
173 | #define QSFP_ATTEN_DDR(attenarray) (attenarray[1]) | |
174 | ||
175 | struct qib_qsfp_data { | |
176 | /* Helps to find our way */ | |
177 | struct qib_pportdata *ppd; | |
178 | struct work_struct work; | |
179 | struct qib_qsfp_cache cache; | |
8482d5d1 | 180 | unsigned long t_insert; |
16d99812 | 181 | u8 modpresent; |
f931551b RC |
182 | }; |
183 | ||
184 | extern int qib_refresh_qsfp_cache(struct qib_pportdata *ppd, | |
185 | struct qib_qsfp_cache *cp); | |
dde05cbd | 186 | extern int qib_qsfp_mod_present(struct qib_pportdata *ppd); |
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187 | extern void qib_qsfp_init(struct qib_qsfp_data *qd, |
188 | void (*fevent)(struct work_struct *)); | |
189 | extern void qib_qsfp_deinit(struct qib_qsfp_data *qd); |