diff options
Diffstat (limited to 'drivers/staging/rdma/hfi1/qsfp.h')
| -rw-r--r-- | drivers/staging/rdma/hfi1/qsfp.h | 57 |
1 files changed, 38 insertions, 19 deletions
diff --git a/drivers/staging/rdma/hfi1/qsfp.h b/drivers/staging/rdma/hfi1/qsfp.h index d30c2a6ba..831fe4cf1 100644 --- a/drivers/staging/rdma/hfi1/qsfp.h +++ b/drivers/staging/rdma/hfi1/qsfp.h @@ -1,12 +1,11 @@ /* + * Copyright(c) 2015, 2016 Intel Corporation. * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * - * Copyright(c) 2015 Intel Corporation. - * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. @@ -18,8 +17,6 @@ * * BSD LICENSE * - * Copyright(c) 2015 Intel Corporation. - * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -59,23 +56,28 @@ * Below are masks for QSFP pins. Pins are the same for HFI0 and HFI1. * _N means asserted low */ -#define QSFP_HFI0_I2CCLK (1 << 0) -#define QSFP_HFI0_I2CDAT (1 << 1) -#define QSFP_HFI0_RESET_N (1 << 2) -#define QSFP_HFI0_INT_N (1 << 3) -#define QSFP_HFI0_MODPRST_N (1 << 4) +#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" */ -/* 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". - */ +#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 @@ -87,7 +89,8 @@ /* 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 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 */ @@ -135,11 +138,18 @@ extern const char *const hfi1_qsfp_devtech[16]; */ #define QSFP_ATTEN_OFFS 186 #define QSFP_ATTEN_LEN 2 -/* Bytes 188,189 are Wavelength tolerance, not Intel req'd */ +/* + * 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 -/* Bytes 192..195 are Options implemented in qsfp. Not Intel req'd */ +#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 @@ -150,6 +160,8 @@ extern const char *const hfi1_qsfp_devtech[16]; #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 @@ -191,6 +203,7 @@ extern const char *const hfi1_qsfp_devtech[16]; */ #define QSFP_PWR(pbyte) (((pbyte) >> 6) & 3) +#define QSFP_HIGH_PWR(pbyte) (((pbyte) & 3) | 4) #define QSFP_ATTEN_SDR(attenarray) (attenarray[0]) #define QSFP_ATTEN_DDR(attenarray) (attenarray[1]) @@ -198,10 +211,12 @@ struct qsfp_data { /* Helps to find our way */ struct hfi1_pportdata *ppd; struct work_struct qsfp_work; - u8 cache[QSFP_MAX_NUM_PAGES*128]; + u8 cache[QSFP_MAX_NUM_PAGES * 128]; + /* protect qsfp data */ spinlock_t qsfp_lock; u8 check_interrupt_flags; - u8 qsfp_interrupt_functional; + u8 reset_needed; + u8 limiting_active; u8 cache_valid; u8 cache_refresh_required; }; @@ -220,3 +235,7 @@ 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); |