OSCL-LXR linux-6.0.1/​drivers/​infiniband/​hw/​qib/​qib_qsfp.h	Source navigation Diff markup Identifier search General search
	Version: linux-6.0.1 spark-3.0.0 hadoop-3.2.0-src hadoop-3.3.0-src spark-2.4.7 linux-4.15.13 hadoop-2.7.4-src Revert   Change

 /*
  * 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
 #define QSFP_MODPRS_LAG_MSEC 20
 
 /*
  * 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;
     unsigned long t_insert;
     u8 modpresent;
 };
 
 extern int qib_refresh_qsfp_cache(struct qib_pportdata *ppd,
                   struct qib_qsfp_cache *cp);
 extern int qib_qsfp_mod_present(struct qib_pportdata *ppd);
 extern void qib_qsfp_init(struct qib_qsfp_data *qd,
               void (*fevent)(struct work_struct *));

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