| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Mike Marciniszyn | 583 | 90.25% | 2 | 16.67% |
| Dean Luick | 31 | 4.80% | 3 | 25.00% |
| Easwar Hariharan | 24 | 3.72% | 3 | 25.00% |
| Jubin John | 6 | 0.93% | 2 | 16.67% |
| caihuoqing | 1 | 0.15% | 1 | 8.33% |
| Krzysztof Kozlowski | 1 | 0.15% | 1 | 8.33% |
| Total | 646 | 12 |
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* * Copyright(c) 2015, 2016 Intel Corporation. */ /* QSFP support common definitions, for hfi driver */ #define QSFP_DEV 0xA0 #define QSFP_PWR_LAG_MSEC 2000 #define QSFP_MODPRS_LAG_MSEC 20 /* 128 byte pages, per SFF 8636 rev 2.4 */ #define QSFP_MAX_NUM_PAGES 5 /* * Below are masks for QSFP pins. Pins are the same for HFI0 and HFI1. * _N means asserted low */ #define QSFP_HFI0_I2CCLK BIT(0) #define QSFP_HFI0_I2CDAT BIT(1) #define QSFP_HFI0_RESET_N BIT(2) #define QSFP_HFI0_INT_N BIT(3) #define QSFP_HFI0_MODPRST_N BIT(4) /* QSFP is paged at 256 bytes */ #define QSFP_PAGESIZE 256 /* Reads/writes cannot cross 128 byte boundaries */ #define QSFP_RW_BOUNDARY 128 /* 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 /* * Byte 129 is "Extended Identifier". * For bits [7:6]: 0:1.5W, 1:2.0W, 2:2.5W, 3:3.5W * For bits [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 /* * Byte 147 is Device technology. D0..3 not Intel req'd * D4..7 select from 15 choices, translated by table: */ #define QSFP_MOD_TECH_OFFS 147 extern const char *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 #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 transceiver 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 Intel 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, if optical * If copper, they are attenuation in dB: * Byte 188 is at 12.5 Gb/s, Byte 189 at 25 Gb/s */ #define QSFP_CU_ATTEN_7G_OFFS 188 #define QSFP_CU_ATTEN_12G_OFFS 189 /* Byte 190 is Max Case Temp. Not Intel req'd */ /* Byte 191 is LSB of sum of bytes 128..190. Not Intel req'd */ #define QSFP_CC_OFFS 191 #define QSFP_EQ_INFO_OFFS 193 #define QSFP_CDR_INFO_OFFS 194 /* 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 Intel req'd */ /* Byte 222 indicates nominal bitrate in units of 250Mbits/sec */ #define QSFP_NOM_BIT_RATE_250_OFFS 222 /* Byte 223 is LSB of sum of bytes 192..222 */ #define QSFP_CC_EXT_OFFS 223 /* * Interrupt flag masks */ #define QSFP_DATA_NOT_READY 0x01 #define QSFP_HIGH_TEMP_ALARM 0x80 #define QSFP_LOW_TEMP_ALARM 0x40 #define QSFP_HIGH_TEMP_WARNING 0x20 #define QSFP_LOW_TEMP_WARNING 0x10 #define QSFP_HIGH_VCC_ALARM 0x80 #define QSFP_LOW_VCC_ALARM 0x40 #define QSFP_HIGH_VCC_WARNING 0x20 #define QSFP_LOW_VCC_WARNING 0x10 #define QSFP_HIGH_POWER_ALARM 0x88 #define QSFP_LOW_POWER_ALARM 0x44 #define QSFP_HIGH_POWER_WARNING 0x22 #define QSFP_LOW_POWER_WARNING 0x11 #define QSFP_HIGH_BIAS_ALARM 0x88 #define QSFP_LOW_BIAS_ALARM 0x44 #define QSFP_HIGH_BIAS_WARNING 0x22 #define QSFP_LOW_BIAS_WARNING 0x11 #define QSFP_ATTEN_SDR(attenarray) (attenarray[0]) #define QSFP_ATTEN_DDR(attenarray) (attenarray[1]) /* * struct qsfp_data encapsulates state of QSFP device for one port. * it will be part of port-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 qsfp_lock arbitrate access to common resources. * */ struct qsfp_data { /* Helps to find our way */ struct hfi1_pportdata *ppd; struct work_struct qsfp_work; u8 cache[QSFP_MAX_NUM_PAGES * 128]; /* protect qsfp data */ spinlock_t qsfp_lock; u8 check_interrupt_flags; u8 reset_needed; u8 limiting_active; u8 cache_valid; u8 cache_refresh_required; }; 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_write(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);
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