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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 two6 * licenses. You may choose to be licensed under the terms of the GNU7 * General Public License (GPL) Version 2, available from the file8 * COPYING in the main directory of this source tree, or the9 * OpenIB.org BSD license below:10 *11 * Redistribution and use in source and binary forms, with or12 * without modification, are permitted provided that the following13 * conditions are met:14 *15 * - Redistributions of source code must retain the above16 * copyright notice, this list of conditions and the following17 * disclaimer.18 *19 * - Redistributions in binary form must reproduce the above20 * copyright notice, this list of conditions and the following21 * disclaimer in the documentation and/or other materials22 * 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 OF26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE31 * SOFTWARE.32 */33/* QSFP support common definitions, for ib_qib driver */34 35#define QSFP_DEV 0xA036#define QSFP_PWR_LAG_MSEC 200037#define QSFP_MODPRS_LAG_MSEC 2038 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 low43 */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 550 51#define QSFP_PAGESIZE 12852/* 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 select58 * 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 12862/*63 * Byte 129 is "Extended Identifier". We only care about D7,D6: Power class64 * 0:1.5W, 1:2.0W, 2:2.5W, 3:3.5W65 */66#define QSFP_MOD_PWR_OFFS 12967/* 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 14675/*76 * Byte 147 is Device technology. D0..3 not Qlogc req'd77 * D4..7 select from 15 choices, translated by table:78 */79#define QSFP_MOD_TECH_OFFS 14780extern 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 990 91#define QSFP_OUI(oui) (((unsigned)oui[0] << 16) | ((unsigned)oui[1] << 8) | \92 oui[2])93#define QSFP_OUI_AMPHENOL 0x41504894#define QSFP_OUI_FINISAR 0x00906595#define QSFP_OUI_GORE 0x00217796 97/* Bytes 148..163 are Vendor Name, Left-justified Blank-filled */98#define QSFP_VEND_OFFS 14899#define QSFP_VEND_LEN 16100/* Byte 164 is IB Extended tranceiver codes Bits D0..3 are SDR,DDR,QDR,EDR */101#define QSFP_IBXCV_OFFS 164102/* Bytes 165..167 are Vendor OUI number */103#define QSFP_VOUI_OFFS 165104#define QSFP_VOUI_LEN 3105/* Bytes 168..183 are Vendor Part Number, string */106#define QSFP_PN_OFFS 168107#define QSFP_PN_LEN 16108/* Bytes 184,185 are Vendor Rev. Left Justified, Blank-filled */109#define QSFP_REV_OFFS 184110#define QSFP_REV_LEN 2111/*112 * Bytes 186,187 are Wavelength, if Optical. Not Qlogic req'd113 * 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 186117#define QSFP_ATTEN_LEN 2118/* 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 191122/* 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 196125#define QSFP_SN_LEN 16126/* Bytes 212..219 are date-code YYMMDD (MM==1 for Jan) */127#define QSFP_DATE_OFFS 212128#define QSFP_DATE_LEN 6129/* Bytes 218,219 are optional lot-code, string */130#define QSFP_LOT_OFFS 218131#define QSFP_LOT_LEN 2132/* 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 223135 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 structs141 * 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 arbitrate145 * access to common resources.146 *147 */148 149/*150 * Hold the parts of the onboard EEPROM that we care about, so we aren't151 * coonstantly bit-boffing152 */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