/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* *Copyright(c)2015,2016IntelCorporation.
*/ /* QSFP support common definitions, for hfi driver */
/* number of bytes in i2c offset for QSFP devices */ #define __QSFP_OFFSET_SIZE 1/* num address bytes */ #define QSFP_OFFSET_SIZE (__QSFP_OFFSET_SIZE << 8) /* shifted value */
/* Defined fields that Intel requires of qualified cables */ /* Byte 0 is Identifier, not checked */ /* Byte 1 is reserved "status MSB" */ #define QSFP_MONITOR_VAL_START 22 #define QSFP_MONITOR_VAL_END 81 #define QSFP_MONITOR_RANGE (QSFP_MONITOR_VAL_END - QSFP_MONITOR_VAL_START + 1) #define QSFP_TX_CTRL_BYTE_OFFS 86 #define QSFP_PWR_CTRL_BYTE_OFFS 93 #define QSFP_CDR_CTRL_BYTE_OFFS 98
#define QSFP_PAGE_SELECT_BYTE_OFFS 127 /* Byte 128 is Identifier: must be 0x0c for QSFP, or 0x0d for QSFP+ */ #define QSFP_MOD_ID_OFFS 128 /* *Byte129is"ExtendedIdentifier". *Forbits[7:6]:0:1.5W,1:2.0W,2:2.5W,3:3.5W *Forbits[1:0]:0:Unused,1:4W,2:4.5W,3:5W
*/ #define QSFP_MOD_PWR_OFFS 129 /* Byte 130 is Connector type. Not Intel req'd */ /* Bytes 131..138 are Transceiver types, bit maps for various tech, none IB */ /* Byte 139 is encoding. code 0x01 is 8b10b. Not Intel req'd */ /* byte 140 is nominal bit-rate, in units of 100Mbits/sec */ #define QSFP_NOM_BIT_RATE_100_OFFS 140 /* Byte 141 is Extended Rate Select. Not Intel req'd */ /* Bytes 142..145 are lengths for various fiber types. Not Intel req'd */ /* Byte 146 is length for Copper. Units of 1 meter */ #define QSFP_MOD_LEN_OFFS 146 /* *Byte147isDevicetechnology.D0..3notIntelreq'd *D4..7selectfrom15choices,translatedbytable:
*/ #define QSFP_MOD_TECH_OFFS 147 externconstchar *const hfi1_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
int refresh_qsfp_cache(struct hfi1_pportdata *ppd, struct qsfp_data *cp); int get_qsfp_power_class(u8 power_byte); int qsfp_mod_present(struct hfi1_pportdata *ppd); int get_cable_info(struct hfi1_devdata *dd, u32 port_num, u32 addr,
u32 len, u8 *data);
int i2c_write(struct hfi1_pportdata *ppd, u32 target, int i2c_addr, int offset, void *bp, int len); int i2c_read(struct hfi1_pportdata *ppd, u32 target, int i2c_addr, int offset, void *bp, int len); int qsfp_write(struct hfi1_pportdata *ppd, u32 target, int addr, void *bp, int len); int qsfp_read(struct hfi1_pportdata *ppd, u32 target, int addr, void *bp, int len); int one_qsfp_read(struct hfi1_pportdata *ppd, u32 target, int addr, void *bp, int len); struct hfi1_asic_data; int set_up_i2c(struct hfi1_devdata *dd, struct hfi1_asic_data *ad); void clean_up_i2c(struct hfi1_devdata *dd, struct hfi1_asic_data *ad);
Messung V0.5 in Prozent
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(vorverarbeitet am 2026-10-12)
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