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 37#define QSFP_MODPRS_LAG_MSEC 20 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 80extern 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) 83/* Active Equalization includes fiber, copper full EQ, and copper far Eq */ 84#define QSFP_IS_ACTIVE_FAR(tech) ((0x32FF >> ((tech) >> 4)) & 1) 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 */ 153struct 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 175struct 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; 180 unsigned long t_insert; 181 u8 modpresent; 182}; 183 184extern int qib_refresh_qsfp_cache(struct qib_pportdata *ppd, 185 struct qib_qsfp_cache *cp); 186extern int qib_qsfp_mod_present(struct qib_pportdata *ppd); 187extern void qib_qsfp_init(struct qib_qsfp_data *qd, 188 void (*fevent)(struct work_struct *)); 189