Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-04 18:13:04 +00:00
Code Issues Packages Projects Releases Wiki Activity
104d9c7f94
linux/drivers/infiniband/hw/hfi1/platform.h
Bart Van Assche 66431b0e86 IB/hfi1: Define platform_config_table_limits once 
Defining static data structures in a header file is wrong because
this causes the data structure to be instantiated once in every .c
file it is included in. Hence move the definition of a static
array from a header file into the only .c file in which it is used.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Dennis Dalessandro <dennis.dalessandro@intel.com>
Cc: Dean Luick <dean.luick@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11 15:29:42 -05:00

413 lines
12 KiB
C
Raw Blame History

/*
* 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
*
* 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.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* BSD LICENSE
*
* 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.
* - Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef __PLATFORM_H
#define __PLATFORM_H
#define METADATA_TABLE_FIELD_START_SHIFT 0
#define METADATA_TABLE_FIELD_START_LEN_BITS 15
#define METADATA_TABLE_FIELD_LEN_SHIFT 16
#define METADATA_TABLE_FIELD_LEN_LEN_BITS 16
/* Header structure */
#define PLATFORM_CONFIG_HEADER_RECORD_IDX_SHIFT 0
#define PLATFORM_CONFIG_HEADER_RECORD_IDX_LEN_BITS 6
#define PLATFORM_CONFIG_HEADER_TABLE_LENGTH_SHIFT 16
#define PLATFORM_CONFIG_HEADER_TABLE_LENGTH_LEN_BITS 12
#define PLATFORM_CONFIG_HEADER_TABLE_TYPE_SHIFT 28
#define PLATFORM_CONFIG_HEADER_TABLE_TYPE_LEN_BITS 4
enum platform_config_table_type_encoding {
PLATFORM_CONFIG_TABLE_RESERVED,
PLATFORM_CONFIG_SYSTEM_TABLE,
PLATFORM_CONFIG_PORT_TABLE,
PLATFORM_CONFIG_RX_PRESET_TABLE,
PLATFORM_CONFIG_TX_PRESET_TABLE,
PLATFORM_CONFIG_QSFP_ATTEN_TABLE,
PLATFORM_CONFIG_VARIABLE_SETTINGS_TABLE,
PLATFORM_CONFIG_TABLE_MAX
};
enum platform_config_system_table_fields {
SYSTEM_TABLE_RESERVED,
SYSTEM_TABLE_NODE_STRING,
SYSTEM_TABLE_SYSTEM_IMAGE_GUID,
SYSTEM_TABLE_NODE_GUID,
SYSTEM_TABLE_REVISION,
SYSTEM_TABLE_VENDOR_OUI,
SYSTEM_TABLE_META_VERSION,
SYSTEM_TABLE_DEVICE_ID,
SYSTEM_TABLE_PARTITION_ENFORCEMENT_CAP,
SYSTEM_TABLE_QSFP_POWER_CLASS_MAX,
SYSTEM_TABLE_QSFP_ATTENUATION_DEFAULT_12G,
SYSTEM_TABLE_QSFP_ATTENUATION_DEFAULT_25G,
SYSTEM_TABLE_VARIABLE_TABLE_ENTRIES_PER_PORT,
SYSTEM_TABLE_MAX
};
enum platform_config_port_table_fields {
PORT_TABLE_RESERVED,
PORT_TABLE_PORT_TYPE,
PORT_TABLE_LOCAL_ATTEN_12G,
PORT_TABLE_LOCAL_ATTEN_25G,
PORT_TABLE_LINK_SPEED_SUPPORTED,
PORT_TABLE_LINK_WIDTH_SUPPORTED,
PORT_TABLE_AUTO_LANE_SHEDDING_ENABLED,
PORT_TABLE_EXTERNAL_LOOPBACK_ALLOWED,
PORT_TABLE_VL_CAP,
PORT_TABLE_MTU_CAP,
PORT_TABLE_TX_LANE_ENABLE_MASK,
PORT_TABLE_LOCAL_MAX_TIMEOUT,
PORT_TABLE_REMOTE_ATTEN_12G,
PORT_TABLE_REMOTE_ATTEN_25G,
PORT_TABLE_TX_PRESET_IDX_ACTIVE_NO_EQ,
PORT_TABLE_TX_PRESET_IDX_ACTIVE_EQ,
PORT_TABLE_RX_PRESET_IDX,
PORT_TABLE_CABLE_REACH_CLASS,
PORT_TABLE_MAX
};
enum platform_config_rx_preset_table_fields {
RX_PRESET_TABLE_RESERVED,
RX_PRESET_TABLE_QSFP_RX_CDR_APPLY,
RX_PRESET_TABLE_QSFP_RX_EMP_APPLY,
RX_PRESET_TABLE_QSFP_RX_AMP_APPLY,
RX_PRESET_TABLE_QSFP_RX_CDR,
RX_PRESET_TABLE_QSFP_RX_EMP,
RX_PRESET_TABLE_QSFP_RX_AMP,
RX_PRESET_TABLE_MAX
};
enum platform_config_tx_preset_table_fields {
TX_PRESET_TABLE_RESERVED,
TX_PRESET_TABLE_PRECUR,
TX_PRESET_TABLE_ATTN,
TX_PRESET_TABLE_POSTCUR,
TX_PRESET_TABLE_QSFP_TX_CDR_APPLY,
TX_PRESET_TABLE_QSFP_TX_EQ_APPLY,
TX_PRESET_TABLE_QSFP_TX_CDR,
TX_PRESET_TABLE_QSFP_TX_EQ,
TX_PRESET_TABLE_MAX
};
enum platform_config_qsfp_attn_table_fields {
QSFP_ATTEN_TABLE_RESERVED,
QSFP_ATTEN_TABLE_TX_PRESET_IDX,
QSFP_ATTEN_TABLE_RX_PRESET_IDX,
QSFP_ATTEN_TABLE_MAX
};
enum platform_config_variable_settings_table_fields {
VARIABLE_SETTINGS_TABLE_RESERVED,
VARIABLE_SETTINGS_TABLE_TX_PRESET_IDX,
VARIABLE_SETTINGS_TABLE_RX_PRESET_IDX,
VARIABLE_SETTINGS_TABLE_MAX
};
struct platform_config {
size_t size;
const u8 *data;
};
struct platform_config_data {
u32 *table;
u32 *table_metadata;
u32 num_table;
};
/*
* This struct acts as a quick reference into the platform_data binary image
* and is populated by parse_platform_config(...) depending on the specific
* META_VERSION
*/
struct platform_config_cache {
u8 cache_valid;
struct platform_config_data config_tables[PLATFORM_CONFIG_TABLE_MAX];
};
/* This section defines default values and encodings for the
* fields defined for each table above
*/
/*
* =====================================================
* System table encodings
* =====================================================
*/
#define PLATFORM_CONFIG_MAGIC_NUM 0x3d4f5041
#define PLATFORM_CONFIG_MAGIC_NUMBER_LEN 4
/*
* These power classes are the same as defined in SFF 8636 spec rev 2.4
* describing byte 129 in table 6-16, except enumerated in a different order
*/
enum platform_config_qsfp_power_class_encoding {
QSFP_POWER_CLASS_1 = 1,
QSFP_POWER_CLASS_2,
QSFP_POWER_CLASS_3,
QSFP_POWER_CLASS_4,
QSFP_POWER_CLASS_5,
QSFP_POWER_CLASS_6,
QSFP_POWER_CLASS_7
};
/*
* ====================================================
* Port table encodings
* ====================================================
*/
enum platform_config_port_type_encoding {
PORT_TYPE_UNKNOWN,
PORT_TYPE_DISCONNECTED,
PORT_TYPE_FIXED,
PORT_TYPE_VARIABLE,
PORT_TYPE_QSFP,
PORT_TYPE_MAX
};
enum platform_config_link_speed_supported_encoding {
LINK_SPEED_SUPP_12G = 1,
LINK_SPEED_SUPP_25G,
LINK_SPEED_SUPP_12G_25G,
LINK_SPEED_SUPP_MAX
};
/*
* This is a subset (not strict) of the link downgrades
* supported. The link downgrades supported are expected
* to be supplied to the driver by another entity such as
* the fabric manager
*/
enum platform_config_link_width_supported_encoding {
LINK_WIDTH_SUPP_1X = 1,
LINK_WIDTH_SUPP_2X,
LINK_WIDTH_SUPP_2X_1X,
LINK_WIDTH_SUPP_3X,
LINK_WIDTH_SUPP_3X_1X,
LINK_WIDTH_SUPP_3X_2X,
LINK_WIDTH_SUPP_3X_2X_1X,
LINK_WIDTH_SUPP_4X,
LINK_WIDTH_SUPP_4X_1X,
LINK_WIDTH_SUPP_4X_2X,
LINK_WIDTH_SUPP_4X_2X_1X,
LINK_WIDTH_SUPP_4X_3X,
LINK_WIDTH_SUPP_4X_3X_1X,
LINK_WIDTH_SUPP_4X_3X_2X,
LINK_WIDTH_SUPP_4X_3X_2X_1X,
LINK_WIDTH_SUPP_MAX
};
enum platform_config_virtual_lane_capability_encoding {
VL_CAP_VL0 = 1,
VL_CAP_VL0_1,
VL_CAP_VL0_2,
VL_CAP_VL0_3,
VL_CAP_VL0_4,
VL_CAP_VL0_5,
VL_CAP_VL0_6,
VL_CAP_VL0_7,
VL_CAP_VL0_8,
VL_CAP_VL0_9,
VL_CAP_VL0_10,
VL_CAP_VL0_11,
VL_CAP_VL0_12,
VL_CAP_VL0_13,
VL_CAP_VL0_14,
VL_CAP_MAX
};
/* Max MTU */
enum platform_config_mtu_capability_encoding {
MTU_CAP_256 = 1,
MTU_CAP_512 = 2,
MTU_CAP_1024 = 3,
MTU_CAP_2048 = 4,
MTU_CAP_4096 = 5,
MTU_CAP_8192 = 6,
MTU_CAP_10240 = 7
};
enum platform_config_local_max_timeout_encoding {
LOCAL_MAX_TIMEOUT_10_MS = 1,
LOCAL_MAX_TIMEOUT_100_MS,
LOCAL_MAX_TIMEOUT_1_S,
LOCAL_MAX_TIMEOUT_10_S,
LOCAL_MAX_TIMEOUT_100_S,
LOCAL_MAX_TIMEOUT_1000_S
};
enum link_tuning_encoding {
OPA_PASSIVE_TUNING,
OPA_ACTIVE_TUNING,
OPA_UNKNOWN_TUNING
};
/*
* Shifts and masks for the link SI tuning values stuffed into the ASIC scratch
* registers for integrated platforms
*/
#define PORT0_PORT_TYPE_SHIFT 0
#define PORT0_LOCAL_ATTEN_SHIFT 4
#define PORT0_REMOTE_ATTEN_SHIFT 10
#define PORT0_DEFAULT_ATTEN_SHIFT 32
#define PORT1_PORT_TYPE_SHIFT 16
#define PORT1_LOCAL_ATTEN_SHIFT 20
#define PORT1_REMOTE_ATTEN_SHIFT 26
#define PORT1_DEFAULT_ATTEN_SHIFT 40
#define PORT0_PORT_TYPE_MASK 0xFUL
#define PORT0_LOCAL_ATTEN_MASK 0x3FUL
#define PORT0_REMOTE_ATTEN_MASK 0x3FUL
#define PORT0_DEFAULT_ATTEN_MASK 0xFFUL
#define PORT1_PORT_TYPE_MASK 0xFUL
#define PORT1_LOCAL_ATTEN_MASK 0x3FUL
#define PORT1_REMOTE_ATTEN_MASK 0x3FUL
#define PORT1_DEFAULT_ATTEN_MASK 0xFFUL
#define PORT0_PORT_TYPE_SMASK (PORT0_PORT_TYPE_MASK << \
PORT0_PORT_TYPE_SHIFT)
#define PORT0_LOCAL_ATTEN_SMASK (PORT0_LOCAL_ATTEN_MASK << \
PORT0_LOCAL_ATTEN_SHIFT)
#define PORT0_REMOTE_ATTEN_SMASK (PORT0_REMOTE_ATTEN_MASK << \
PORT0_REMOTE_ATTEN_SHIFT)
#define PORT0_DEFAULT_ATTEN_SMASK (PORT0_DEFAULT_ATTEN_MASK << \
PORT0_DEFAULT_ATTEN_SHIFT)
#define PORT1_PORT_TYPE_SMASK (PORT1_PORT_TYPE_MASK << \
PORT1_PORT_TYPE_SHIFT)
#define PORT1_LOCAL_ATTEN_SMASK (PORT1_LOCAL_ATTEN_MASK << \
PORT1_LOCAL_ATTEN_SHIFT)
#define PORT1_REMOTE_ATTEN_SMASK (PORT1_REMOTE_ATTEN_MASK << \
PORT1_REMOTE_ATTEN_SHIFT)
#define PORT1_DEFAULT_ATTEN_SMASK (PORT1_DEFAULT_ATTEN_MASK << \
PORT1_DEFAULT_ATTEN_SHIFT)
#define QSFP_MAX_POWER_SHIFT 0
#define TX_NO_EQ_SHIFT 4
#define TX_EQ_SHIFT 25
#define RX_SHIFT 46
#define QSFP_MAX_POWER_MASK 0xFUL
#define TX_NO_EQ_MASK 0x1FFFFFUL
#define TX_EQ_MASK 0x1FFFFFUL
#define RX_MASK 0xFFFFUL
#define QSFP_MAX_POWER_SMASK (QSFP_MAX_POWER_MASK << \
QSFP_MAX_POWER_SHIFT)
#define TX_NO_EQ_SMASK (TX_NO_EQ_MASK << TX_NO_EQ_SHIFT)
#define TX_EQ_SMASK (TX_EQ_MASK << TX_EQ_SHIFT)
#define RX_SMASK (RX_MASK << RX_SHIFT)
#define TX_PRECUR_SHIFT 0
#define TX_ATTN_SHIFT 4
#define QSFP_TX_CDR_APPLY_SHIFT 9
#define QSFP_TX_EQ_APPLY_SHIFT 10
#define QSFP_TX_CDR_SHIFT 11
#define QSFP_TX_EQ_SHIFT 12
#define TX_POSTCUR_SHIFT 16
#define TX_PRECUR_MASK 0xFUL
#define TX_ATTN_MASK 0x1FUL
#define QSFP_TX_CDR_APPLY_MASK 0x1UL
#define QSFP_TX_EQ_APPLY_MASK 0x1UL
#define QSFP_TX_CDR_MASK 0x1UL
#define QSFP_TX_EQ_MASK 0xFUL
#define TX_POSTCUR_MASK 0x1FUL
#define TX_PRECUR_SMASK (TX_PRECUR_MASK << TX_PRECUR_SHIFT)
#define TX_ATTN_SMASK (TX_ATTN_MASK << TX_ATTN_SHIFT)
#define QSFP_TX_CDR_APPLY_SMASK (QSFP_TX_CDR_APPLY_MASK << \
QSFP_TX_CDR_APPLY_SHIFT)
#define QSFP_TX_EQ_APPLY_SMASK (QSFP_TX_EQ_APPLY_MASK << \
QSFP_TX_EQ_APPLY_SHIFT)
#define QSFP_TX_CDR_SMASK (QSFP_TX_CDR_MASK << QSFP_TX_CDR_SHIFT)
#define QSFP_TX_EQ_SMASK (QSFP_TX_EQ_MASK << QSFP_TX_EQ_SHIFT)
#define TX_POSTCUR_SMASK (TX_POSTCUR_MASK << TX_POSTCUR_SHIFT)
#define QSFP_RX_CDR_APPLY_SHIFT 0
#define QSFP_RX_EMP_APPLY_SHIFT 1
#define QSFP_RX_AMP_APPLY_SHIFT 2
#define QSFP_RX_CDR_SHIFT 3
#define QSFP_RX_EMP_SHIFT 4
#define QSFP_RX_AMP_SHIFT 8
#define QSFP_RX_CDR_APPLY_MASK 0x1UL
#define QSFP_RX_EMP_APPLY_MASK 0x1UL
#define QSFP_RX_AMP_APPLY_MASK 0x1UL
#define QSFP_RX_CDR_MASK 0x1UL
#define QSFP_RX_EMP_MASK 0xFUL
#define QSFP_RX_AMP_MASK 0x3UL
#define QSFP_RX_CDR_APPLY_SMASK (QSFP_RX_CDR_APPLY_MASK << \
QSFP_RX_CDR_APPLY_SHIFT)
#define QSFP_RX_EMP_APPLY_SMASK (QSFP_RX_EMP_APPLY_MASK << \
QSFP_RX_EMP_APPLY_SHIFT)
#define QSFP_RX_AMP_APPLY_SMASK (QSFP_RX_AMP_APPLY_MASK << \
QSFP_RX_AMP_APPLY_SHIFT)
#define QSFP_RX_CDR_SMASK (QSFP_RX_CDR_MASK << QSFP_RX_CDR_SHIFT)
#define QSFP_RX_EMP_SMASK (QSFP_RX_EMP_MASK << QSFP_RX_EMP_SHIFT)
#define QSFP_RX_AMP_SMASK (QSFP_RX_AMP_MASK << QSFP_RX_AMP_SHIFT)
#define BITMAP_VERSION 1
#define BITMAP_VERSION_SHIFT 44
#define BITMAP_VERSION_MASK 0xFUL
#define BITMAP_VERSION_SMASK (BITMAP_VERSION_MASK << \
BITMAP_VERSION_SHIFT)
#define CHECKSUM_SHIFT 48
#define CHECKSUM_MASK 0xFFFFUL
#define CHECKSUM_SMASK (CHECKSUM_MASK << CHECKSUM_SHIFT)
/* platform.c */
void get_platform_config(struct hfi1_devdata *dd);
void free_platform_config(struct hfi1_devdata *dd);
void get_port_type(struct hfi1_pportdata *ppd);
int set_qsfp_tx(struct hfi1_pportdata *ppd, int on);
void tune_serdes(struct hfi1_pportdata *ppd);
#endif /*__PLATFORM_H*/
Reference in New Issue View Git Blame Copy Permalink