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1272 lines
43 KiB
1272 lines
43 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Thunderbolt driver - bus logic (NHI independent) |
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* |
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* Copyright (c) 2014 Andreas Noever <[email protected]> |
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* Copyright (C) 2018, Intel Corporation |
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*/ |
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#ifndef TB_H_ |
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#define TB_H_ |
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#include <linux/nvmem-provider.h> |
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#include <linux/pci.h> |
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#include <linux/thunderbolt.h> |
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#include <linux/uuid.h> |
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#include "tb_regs.h" |
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#include "ctl.h" |
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#include "dma_port.h" |
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#define NVM_MIN_SIZE SZ_32K |
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#define NVM_MAX_SIZE SZ_512K |
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#define NVM_DATA_DWORDS 16 |
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/* Intel specific NVM offsets */ |
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#define NVM_DEVID 0x05 |
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#define NVM_VERSION 0x08 |
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#define NVM_FLASH_SIZE 0x45 |
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/** |
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* struct tb_nvm - Structure holding NVM information |
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* @dev: Owner of the NVM |
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* @major: Major version number of the active NVM portion |
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* @minor: Minor version number of the active NVM portion |
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* @id: Identifier used with both NVM portions |
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* @active: Active portion NVMem device |
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* @non_active: Non-active portion NVMem device |
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* @buf: Buffer where the NVM image is stored before it is written to |
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* the actual NVM flash device |
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* @buf_data_size: Number of bytes actually consumed by the new NVM |
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* image |
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* @authenticating: The device is authenticating the new NVM |
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* @flushed: The image has been flushed to the storage area |
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* |
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* The user of this structure needs to handle serialization of possible |
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* concurrent access. |
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*/ |
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struct tb_nvm { |
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struct device *dev; |
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u8 major; |
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u8 minor; |
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int id; |
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struct nvmem_device *active; |
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struct nvmem_device *non_active; |
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void *buf; |
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size_t buf_data_size; |
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bool authenticating; |
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bool flushed; |
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}; |
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enum tb_nvm_write_ops { |
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WRITE_AND_AUTHENTICATE = 1, |
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WRITE_ONLY = 2, |
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AUTHENTICATE_ONLY = 3, |
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}; |
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#define TB_SWITCH_KEY_SIZE 32 |
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#define TB_SWITCH_MAX_DEPTH 6 |
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#define USB4_SWITCH_MAX_DEPTH 5 |
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/** |
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* enum tb_switch_tmu_rate - TMU refresh rate |
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* @TB_SWITCH_TMU_RATE_OFF: %0 (Disable Time Sync handshake) |
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* @TB_SWITCH_TMU_RATE_HIFI: %16 us time interval between successive |
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* transmission of the Delay Request TSNOS |
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* (Time Sync Notification Ordered Set) on a Link |
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* @TB_SWITCH_TMU_RATE_NORMAL: %1 ms time interval between successive |
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* transmission of the Delay Request TSNOS on |
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* a Link |
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*/ |
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enum tb_switch_tmu_rate { |
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TB_SWITCH_TMU_RATE_OFF = 0, |
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TB_SWITCH_TMU_RATE_HIFI = 16, |
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TB_SWITCH_TMU_RATE_NORMAL = 1000, |
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}; |
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/** |
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* struct tb_switch_tmu - Structure holding switch TMU configuration |
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* @cap: Offset to the TMU capability (%0 if not found) |
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* @has_ucap: Does the switch support uni-directional mode |
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* @rate: TMU refresh rate related to upstream switch. In case of root |
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* switch this holds the domain rate. Reflects the HW setting. |
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* @unidirectional: Is the TMU in uni-directional or bi-directional mode |
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* related to upstream switch. Don't care for root switch. |
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* Reflects the HW setting. |
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* @unidirectional_request: Is the new TMU mode: uni-directional or bi-directional |
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* that is requested to be set. Related to upstream switch. |
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* Don't care for root switch. |
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* @rate_request: TMU new refresh rate related to upstream switch that is |
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* requested to be set. In case of root switch, this holds |
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* the new domain rate that is requested to be set. |
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*/ |
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struct tb_switch_tmu { |
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int cap; |
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bool has_ucap; |
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enum tb_switch_tmu_rate rate; |
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bool unidirectional; |
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bool unidirectional_request; |
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enum tb_switch_tmu_rate rate_request; |
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}; |
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enum tb_clx { |
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TB_CLX_DISABLE, |
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TB_CL0S, |
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TB_CL1, |
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TB_CL2, |
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}; |
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/** |
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* struct tb_switch - a thunderbolt switch |
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* @dev: Device for the switch |
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* @config: Switch configuration |
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* @ports: Ports in this switch |
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* @dma_port: If the switch has port supporting DMA configuration based |
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* mailbox this will hold the pointer to that (%NULL |
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* otherwise). If set it also means the switch has |
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* upgradeable NVM. |
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* @tmu: The switch TMU configuration |
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* @tb: Pointer to the domain the switch belongs to |
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* @uid: Unique ID of the switch |
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* @uuid: UUID of the switch (or %NULL if not supported) |
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* @vendor: Vendor ID of the switch |
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* @device: Device ID of the switch |
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* @vendor_name: Name of the vendor (or %NULL if not known) |
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* @device_name: Name of the device (or %NULL if not known) |
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* @link_speed: Speed of the link in Gb/s |
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* @link_width: Width of the link (1 or 2) |
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* @link_usb4: Upstream link is USB4 |
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* @generation: Switch Thunderbolt generation |
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* @cap_plug_events: Offset to the plug events capability (%0 if not found) |
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* @cap_vsec_tmu: Offset to the TMU vendor specific capability (%0 if not found) |
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* @cap_lc: Offset to the link controller capability (%0 if not found) |
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* @cap_lp: Offset to the low power (CLx for TBT) capability (%0 if not found) |
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* @is_unplugged: The switch is going away |
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* @drom: DROM of the switch (%NULL if not found) |
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* @nvm: Pointer to the NVM if the switch has one (%NULL otherwise) |
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* @no_nvm_upgrade: Prevent NVM upgrade of this switch |
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* @safe_mode: The switch is in safe-mode |
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* @boot: Whether the switch was already authorized on boot or not |
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* @rpm: The switch supports runtime PM |
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* @authorized: Whether the switch is authorized by user or policy |
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* @security_level: Switch supported security level |
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* @debugfs_dir: Pointer to the debugfs structure |
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* @key: Contains the key used to challenge the device or %NULL if not |
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* supported. Size of the key is %TB_SWITCH_KEY_SIZE. |
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* @connection_id: Connection ID used with ICM messaging |
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* @connection_key: Connection key used with ICM messaging |
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* @link: Root switch link this switch is connected (ICM only) |
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* @depth: Depth in the chain this switch is connected (ICM only) |
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* @rpm_complete: Completion used to wait for runtime resume to |
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* complete (ICM only) |
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* @quirks: Quirks used for this Thunderbolt switch |
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* @credit_allocation: Are the below buffer allocation parameters valid |
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* @max_usb3_credits: Router preferred number of buffers for USB 3.x |
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* @min_dp_aux_credits: Router preferred minimum number of buffers for DP AUX |
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* @min_dp_main_credits: Router preferred minimum number of buffers for DP MAIN |
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* @max_pcie_credits: Router preferred number of buffers for PCIe |
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* @max_dma_credits: Router preferred number of buffers for DMA/P2P |
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* @clx: CLx state on the upstream link of the router |
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* |
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* When the switch is being added or removed to the domain (other |
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* switches) you need to have domain lock held. |
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* |
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* In USB4 terminology this structure represents a router. |
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*/ |
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struct tb_switch { |
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struct device dev; |
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struct tb_regs_switch_header config; |
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struct tb_port *ports; |
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struct tb_dma_port *dma_port; |
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struct tb_switch_tmu tmu; |
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struct tb *tb; |
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u64 uid; |
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uuid_t *uuid; |
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u16 vendor; |
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u16 device; |
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const char *vendor_name; |
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const char *device_name; |
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unsigned int link_speed; |
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unsigned int link_width; |
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bool link_usb4; |
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unsigned int generation; |
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int cap_plug_events; |
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int cap_vsec_tmu; |
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int cap_lc; |
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int cap_lp; |
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bool is_unplugged; |
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u8 *drom; |
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struct tb_nvm *nvm; |
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bool no_nvm_upgrade; |
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bool safe_mode; |
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bool boot; |
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bool rpm; |
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unsigned int authorized; |
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enum tb_security_level security_level; |
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struct dentry *debugfs_dir; |
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u8 *key; |
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u8 connection_id; |
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u8 connection_key; |
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u8 link; |
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u8 depth; |
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struct completion rpm_complete; |
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unsigned long quirks; |
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bool credit_allocation; |
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unsigned int max_usb3_credits; |
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unsigned int min_dp_aux_credits; |
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unsigned int min_dp_main_credits; |
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unsigned int max_pcie_credits; |
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unsigned int max_dma_credits; |
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enum tb_clx clx; |
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}; |
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/** |
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* struct tb_port - a thunderbolt port, part of a tb_switch |
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* @config: Cached port configuration read from registers |
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* @sw: Switch the port belongs to |
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* @remote: Remote port (%NULL if not connected) |
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* @xdomain: Remote host (%NULL if not connected) |
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* @cap_phy: Offset, zero if not found |
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* @cap_tmu: Offset of the adapter specific TMU capability (%0 if not present) |
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* @cap_adap: Offset of the adapter specific capability (%0 if not present) |
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* @cap_usb4: Offset to the USB4 port capability (%0 if not present) |
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* @usb4: Pointer to the USB4 port structure (only if @cap_usb4 is != %0) |
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* @port: Port number on switch |
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* @disabled: Disabled by eeprom or enabled but not implemented |
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* @bonded: true if the port is bonded (two lanes combined as one) |
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* @dual_link_port: If the switch is connected using two ports, points |
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* to the other port. |
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* @link_nr: Is this primary or secondary port on the dual_link. |
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* @in_hopids: Currently allocated input HopIDs |
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* @out_hopids: Currently allocated output HopIDs |
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* @list: Used to link ports to DP resources list |
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* @total_credits: Total number of buffers available for this port |
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* @ctl_credits: Buffers reserved for control path |
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* @dma_credits: Number of credits allocated for DMA tunneling for all |
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* DMA paths through this port. |
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* |
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* In USB4 terminology this structure represents an adapter (protocol or |
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* lane adapter). |
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*/ |
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struct tb_port { |
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struct tb_regs_port_header config; |
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struct tb_switch *sw; |
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struct tb_port *remote; |
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struct tb_xdomain *xdomain; |
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int cap_phy; |
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int cap_tmu; |
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int cap_adap; |
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int cap_usb4; |
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struct usb4_port *usb4; |
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u8 port; |
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bool disabled; |
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bool bonded; |
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struct tb_port *dual_link_port; |
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u8 link_nr:1; |
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struct ida in_hopids; |
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struct ida out_hopids; |
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struct list_head list; |
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unsigned int total_credits; |
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unsigned int ctl_credits; |
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unsigned int dma_credits; |
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}; |
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/** |
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* struct usb4_port - USB4 port device |
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* @dev: Device for the port |
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* @port: Pointer to the lane 0 adapter |
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* @can_offline: Does the port have necessary platform support to moved |
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* it into offline mode and back |
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* @offline: The port is currently in offline mode |
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*/ |
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struct usb4_port { |
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struct device dev; |
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struct tb_port *port; |
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bool can_offline; |
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bool offline; |
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}; |
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/** |
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* tb_retimer: Thunderbolt retimer |
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* @dev: Device for the retimer |
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* @tb: Pointer to the domain the retimer belongs to |
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* @index: Retimer index facing the router USB4 port |
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* @vendor: Vendor ID of the retimer |
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* @device: Device ID of the retimer |
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* @port: Pointer to the lane 0 adapter |
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* @nvm: Pointer to the NVM if the retimer has one (%NULL otherwise) |
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* @auth_status: Status of last NVM authentication |
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*/ |
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struct tb_retimer { |
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struct device dev; |
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struct tb *tb; |
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u8 index; |
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u32 vendor; |
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u32 device; |
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struct tb_port *port; |
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struct tb_nvm *nvm; |
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u32 auth_status; |
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}; |
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/** |
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* struct tb_path_hop - routing information for a tb_path |
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* @in_port: Ingress port of a switch |
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* @out_port: Egress port of a switch where the packet is routed out |
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* (must be on the same switch than @in_port) |
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* @in_hop_index: HopID where the path configuration entry is placed in |
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* the path config space of @in_port. |
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* @in_counter_index: Used counter index (not used in the driver |
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* currently, %-1 to disable) |
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* @next_hop_index: HopID of the packet when it is routed out from @out_port |
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* @initial_credits: Number of initial flow control credits allocated for |
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* the path |
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* @nfc_credits: Number of non-flow controlled buffers allocated for the |
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* @in_port. |
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* |
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* Hop configuration is always done on the IN port of a switch. |
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* in_port and out_port have to be on the same switch. Packets arriving on |
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* in_port with "hop" = in_hop_index will get routed to through out_port. The |
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* next hop to take (on out_port->remote) is determined by |
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* next_hop_index. When routing packet to another switch (out->remote is |
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* set) the @next_hop_index must match the @in_hop_index of that next |
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* hop to make routing possible. |
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* |
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* in_counter_index is the index of a counter (in TB_CFG_COUNTERS) on the in |
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* port. |
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*/ |
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struct tb_path_hop { |
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struct tb_port *in_port; |
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struct tb_port *out_port; |
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int in_hop_index; |
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int in_counter_index; |
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int next_hop_index; |
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unsigned int initial_credits; |
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unsigned int nfc_credits; |
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}; |
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/** |
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* enum tb_path_port - path options mask |
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* @TB_PATH_NONE: Do not activate on any hop on path |
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* @TB_PATH_SOURCE: Activate on the first hop (out of src) |
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* @TB_PATH_INTERNAL: Activate on the intermediate hops (not the first/last) |
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* @TB_PATH_DESTINATION: Activate on the last hop (into dst) |
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* @TB_PATH_ALL: Activate on all hops on the path |
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*/ |
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enum tb_path_port { |
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TB_PATH_NONE = 0, |
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TB_PATH_SOURCE = 1, |
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TB_PATH_INTERNAL = 2, |
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TB_PATH_DESTINATION = 4, |
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TB_PATH_ALL = 7, |
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}; |
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/** |
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* struct tb_path - a unidirectional path between two ports |
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* @tb: Pointer to the domain structure |
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* @name: Name of the path (used for debugging) |
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* @ingress_shared_buffer: Shared buffering used for ingress ports on the path |
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* @egress_shared_buffer: Shared buffering used for egress ports on the path |
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* @ingress_fc_enable: Flow control for ingress ports on the path |
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* @egress_fc_enable: Flow control for egress ports on the path |
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* @priority: Priority group if the path |
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* @weight: Weight of the path inside the priority group |
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* @drop_packages: Drop packages from queue tail or head |
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* @activated: Is the path active |
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* @clear_fc: Clear all flow control from the path config space entries |
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* when deactivating this path |
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* @hops: Path hops |
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* @path_length: How many hops the path uses |
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* @alloc_hopid: Does this path consume port HopID |
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* |
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* A path consists of a number of hops (see &struct tb_path_hop). To |
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* establish a PCIe tunnel two paths have to be created between the two |
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* PCIe ports. |
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*/ |
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struct tb_path { |
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struct tb *tb; |
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const char *name; |
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enum tb_path_port ingress_shared_buffer; |
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enum tb_path_port egress_shared_buffer; |
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enum tb_path_port ingress_fc_enable; |
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enum tb_path_port egress_fc_enable; |
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unsigned int priority:3; |
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int weight:4; |
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bool drop_packages; |
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bool activated; |
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bool clear_fc; |
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struct tb_path_hop *hops; |
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int path_length; |
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bool alloc_hopid; |
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}; |
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/* HopIDs 0-7 are reserved by the Thunderbolt protocol */ |
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#define TB_PATH_MIN_HOPID 8 |
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/* |
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* Support paths from the farthest (depth 6) router to the host and back |
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* to the same level (not necessarily to the same router). |
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*/ |
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#define TB_PATH_MAX_HOPS (7 * 2) |
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/* Possible wake types */ |
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#define TB_WAKE_ON_CONNECT BIT(0) |
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#define TB_WAKE_ON_DISCONNECT BIT(1) |
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#define TB_WAKE_ON_USB4 BIT(2) |
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#define TB_WAKE_ON_USB3 BIT(3) |
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#define TB_WAKE_ON_PCIE BIT(4) |
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#define TB_WAKE_ON_DP BIT(5) |
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|
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/** |
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* struct tb_cm_ops - Connection manager specific operations vector |
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* @driver_ready: Called right after control channel is started. Used by |
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* ICM to send driver ready message to the firmware. |
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* @start: Starts the domain |
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* @stop: Stops the domain |
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* @suspend_noirq: Connection manager specific suspend_noirq |
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* @resume_noirq: Connection manager specific resume_noirq |
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* @suspend: Connection manager specific suspend |
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* @freeze_noirq: Connection manager specific freeze_noirq |
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* @thaw_noirq: Connection manager specific thaw_noirq |
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* @complete: Connection manager specific complete |
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* @runtime_suspend: Connection manager specific runtime_suspend |
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* @runtime_resume: Connection manager specific runtime_resume |
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* @runtime_suspend_switch: Runtime suspend a switch |
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* @runtime_resume_switch: Runtime resume a switch |
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* @handle_event: Handle thunderbolt event |
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* @get_boot_acl: Get boot ACL list |
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* @set_boot_acl: Set boot ACL list |
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* @disapprove_switch: Disapprove switch (disconnect PCIe tunnel) |
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* @approve_switch: Approve switch |
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* @add_switch_key: Add key to switch |
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* @challenge_switch_key: Challenge switch using key |
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* @disconnect_pcie_paths: Disconnects PCIe paths before NVM update |
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* @approve_xdomain_paths: Approve (establish) XDomain DMA paths |
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* @disconnect_xdomain_paths: Disconnect XDomain DMA paths |
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* @usb4_switch_op: Optional proxy for USB4 router operations. If set |
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* this will be called whenever USB4 router operation is |
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* performed. If this returns %-EOPNOTSUPP then the |
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* native USB4 router operation is called. |
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* @usb4_switch_nvm_authenticate_status: Optional callback that the CM |
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* implementation can be used to |
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* return status of USB4 NVM_AUTH |
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* router operation. |
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*/ |
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struct tb_cm_ops { |
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int (*driver_ready)(struct tb *tb); |
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int (*start)(struct tb *tb); |
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void (*stop)(struct tb *tb); |
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int (*suspend_noirq)(struct tb *tb); |
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int (*resume_noirq)(struct tb *tb); |
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int (*suspend)(struct tb *tb); |
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int (*freeze_noirq)(struct tb *tb); |
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int (*thaw_noirq)(struct tb *tb); |
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void (*complete)(struct tb *tb); |
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int (*runtime_suspend)(struct tb *tb); |
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int (*runtime_resume)(struct tb *tb); |
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int (*runtime_suspend_switch)(struct tb_switch *sw); |
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int (*runtime_resume_switch)(struct tb_switch *sw); |
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void (*handle_event)(struct tb *tb, enum tb_cfg_pkg_type, |
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const void *buf, size_t size); |
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int (*get_boot_acl)(struct tb *tb, uuid_t *uuids, size_t nuuids); |
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int (*set_boot_acl)(struct tb *tb, const uuid_t *uuids, size_t nuuids); |
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int (*disapprove_switch)(struct tb *tb, struct tb_switch *sw); |
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int (*approve_switch)(struct tb *tb, struct tb_switch *sw); |
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int (*add_switch_key)(struct tb *tb, struct tb_switch *sw); |
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int (*challenge_switch_key)(struct tb *tb, struct tb_switch *sw, |
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const u8 *challenge, u8 *response); |
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int (*disconnect_pcie_paths)(struct tb *tb); |
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int (*approve_xdomain_paths)(struct tb *tb, struct tb_xdomain *xd, |
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int transmit_path, int transmit_ring, |
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int receive_path, int receive_ring); |
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int (*disconnect_xdomain_paths)(struct tb *tb, struct tb_xdomain *xd, |
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int transmit_path, int transmit_ring, |
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int receive_path, int receive_ring); |
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int (*usb4_switch_op)(struct tb_switch *sw, u16 opcode, u32 *metadata, |
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u8 *status, const void *tx_data, size_t tx_data_len, |
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void *rx_data, size_t rx_data_len); |
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int (*usb4_switch_nvm_authenticate_status)(struct tb_switch *sw, |
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u32 *status); |
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}; |
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|
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static inline void *tb_priv(struct tb *tb) |
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{ |
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return (void *)tb->privdata; |
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} |
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|
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#define TB_AUTOSUSPEND_DELAY 15000 /* ms */ |
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|
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/* helper functions & macros */ |
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|
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/** |
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* tb_upstream_port() - return the upstream port of a switch |
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* |
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* Every switch has an upstream port (for the root switch it is the NHI). |
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* |
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* During switch alloc/init tb_upstream_port()->remote may be NULL, even for |
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* non root switches (on the NHI port remote is always NULL). |
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* |
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* Return: Returns the upstream port of the switch. |
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*/ |
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static inline struct tb_port *tb_upstream_port(struct tb_switch *sw) |
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{ |
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return &sw->ports[sw->config.upstream_port_number]; |
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} |
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|
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/** |
|
* tb_is_upstream_port() - Is the port upstream facing |
|
* @port: Port to check |
|
* |
|
* Returns true if @port is upstream facing port. In case of dual link |
|
* ports both return true. |
|
*/ |
|
static inline bool tb_is_upstream_port(const struct tb_port *port) |
|
{ |
|
const struct tb_port *upstream_port = tb_upstream_port(port->sw); |
|
return port == upstream_port || port->dual_link_port == upstream_port; |
|
} |
|
|
|
static inline u64 tb_route(const struct tb_switch *sw) |
|
{ |
|
return ((u64) sw->config.route_hi) << 32 | sw->config.route_lo; |
|
} |
|
|
|
static inline struct tb_port *tb_port_at(u64 route, struct tb_switch *sw) |
|
{ |
|
u8 port; |
|
|
|
port = route >> (sw->config.depth * 8); |
|
if (WARN_ON(port > sw->config.max_port_number)) |
|
return NULL; |
|
return &sw->ports[port]; |
|
} |
|
|
|
/** |
|
* tb_port_has_remote() - Does the port have switch connected downstream |
|
* @port: Port to check |
|
* |
|
* Returns true only when the port is primary port and has remote set. |
|
*/ |
|
static inline bool tb_port_has_remote(const struct tb_port *port) |
|
{ |
|
if (tb_is_upstream_port(port)) |
|
return false; |
|
if (!port->remote) |
|
return false; |
|
if (port->dual_link_port && port->link_nr) |
|
return false; |
|
|
|
return true; |
|
} |
|
|
|
static inline bool tb_port_is_null(const struct tb_port *port) |
|
{ |
|
return port && port->port && port->config.type == TB_TYPE_PORT; |
|
} |
|
|
|
static inline bool tb_port_is_nhi(const struct tb_port *port) |
|
{ |
|
return port && port->config.type == TB_TYPE_NHI; |
|
} |
|
|
|
static inline bool tb_port_is_pcie_down(const struct tb_port *port) |
|
{ |
|
return port && port->config.type == TB_TYPE_PCIE_DOWN; |
|
} |
|
|
|
static inline bool tb_port_is_pcie_up(const struct tb_port *port) |
|
{ |
|
return port && port->config.type == TB_TYPE_PCIE_UP; |
|
} |
|
|
|
static inline bool tb_port_is_dpin(const struct tb_port *port) |
|
{ |
|
return port && port->config.type == TB_TYPE_DP_HDMI_IN; |
|
} |
|
|
|
static inline bool tb_port_is_dpout(const struct tb_port *port) |
|
{ |
|
return port && port->config.type == TB_TYPE_DP_HDMI_OUT; |
|
} |
|
|
|
static inline bool tb_port_is_usb3_down(const struct tb_port *port) |
|
{ |
|
return port && port->config.type == TB_TYPE_USB3_DOWN; |
|
} |
|
|
|
static inline bool tb_port_is_usb3_up(const struct tb_port *port) |
|
{ |
|
return port && port->config.type == TB_TYPE_USB3_UP; |
|
} |
|
|
|
static inline int tb_sw_read(struct tb_switch *sw, void *buffer, |
|
enum tb_cfg_space space, u32 offset, u32 length) |
|
{ |
|
if (sw->is_unplugged) |
|
return -ENODEV; |
|
return tb_cfg_read(sw->tb->ctl, |
|
buffer, |
|
tb_route(sw), |
|
0, |
|
space, |
|
offset, |
|
length); |
|
} |
|
|
|
static inline int tb_sw_write(struct tb_switch *sw, const void *buffer, |
|
enum tb_cfg_space space, u32 offset, u32 length) |
|
{ |
|
if (sw->is_unplugged) |
|
return -ENODEV; |
|
return tb_cfg_write(sw->tb->ctl, |
|
buffer, |
|
tb_route(sw), |
|
0, |
|
space, |
|
offset, |
|
length); |
|
} |
|
|
|
static inline int tb_port_read(struct tb_port *port, void *buffer, |
|
enum tb_cfg_space space, u32 offset, u32 length) |
|
{ |
|
if (port->sw->is_unplugged) |
|
return -ENODEV; |
|
return tb_cfg_read(port->sw->tb->ctl, |
|
buffer, |
|
tb_route(port->sw), |
|
port->port, |
|
space, |
|
offset, |
|
length); |
|
} |
|
|
|
static inline int tb_port_write(struct tb_port *port, const void *buffer, |
|
enum tb_cfg_space space, u32 offset, u32 length) |
|
{ |
|
if (port->sw->is_unplugged) |
|
return -ENODEV; |
|
return tb_cfg_write(port->sw->tb->ctl, |
|
buffer, |
|
tb_route(port->sw), |
|
port->port, |
|
space, |
|
offset, |
|
length); |
|
} |
|
|
|
#define tb_err(tb, fmt, arg...) dev_err(&(tb)->nhi->pdev->dev, fmt, ## arg) |
|
#define tb_WARN(tb, fmt, arg...) dev_WARN(&(tb)->nhi->pdev->dev, fmt, ## arg) |
|
#define tb_warn(tb, fmt, arg...) dev_warn(&(tb)->nhi->pdev->dev, fmt, ## arg) |
|
#define tb_info(tb, fmt, arg...) dev_info(&(tb)->nhi->pdev->dev, fmt, ## arg) |
|
#define tb_dbg(tb, fmt, arg...) dev_dbg(&(tb)->nhi->pdev->dev, fmt, ## arg) |
|
|
|
#define __TB_SW_PRINT(level, sw, fmt, arg...) \ |
|
do { \ |
|
const struct tb_switch *__sw = (sw); \ |
|
level(__sw->tb, "%llx: " fmt, \ |
|
tb_route(__sw), ## arg); \ |
|
} while (0) |
|
#define tb_sw_WARN(sw, fmt, arg...) __TB_SW_PRINT(tb_WARN, sw, fmt, ##arg) |
|
#define tb_sw_warn(sw, fmt, arg...) __TB_SW_PRINT(tb_warn, sw, fmt, ##arg) |
|
#define tb_sw_info(sw, fmt, arg...) __TB_SW_PRINT(tb_info, sw, fmt, ##arg) |
|
#define tb_sw_dbg(sw, fmt, arg...) __TB_SW_PRINT(tb_dbg, sw, fmt, ##arg) |
|
|
|
#define __TB_PORT_PRINT(level, _port, fmt, arg...) \ |
|
do { \ |
|
const struct tb_port *__port = (_port); \ |
|
level(__port->sw->tb, "%llx:%x: " fmt, \ |
|
tb_route(__port->sw), __port->port, ## arg); \ |
|
} while (0) |
|
#define tb_port_WARN(port, fmt, arg...) \ |
|
__TB_PORT_PRINT(tb_WARN, port, fmt, ##arg) |
|
#define tb_port_warn(port, fmt, arg...) \ |
|
__TB_PORT_PRINT(tb_warn, port, fmt, ##arg) |
|
#define tb_port_info(port, fmt, arg...) \ |
|
__TB_PORT_PRINT(tb_info, port, fmt, ##arg) |
|
#define tb_port_dbg(port, fmt, arg...) \ |
|
__TB_PORT_PRINT(tb_dbg, port, fmt, ##arg) |
|
|
|
struct tb *icm_probe(struct tb_nhi *nhi); |
|
struct tb *tb_probe(struct tb_nhi *nhi); |
|
|
|
extern struct device_type tb_domain_type; |
|
extern struct device_type tb_retimer_type; |
|
extern struct device_type tb_switch_type; |
|
extern struct device_type usb4_port_device_type; |
|
|
|
int tb_domain_init(void); |
|
void tb_domain_exit(void); |
|
int tb_xdomain_init(void); |
|
void tb_xdomain_exit(void); |
|
|
|
struct tb *tb_domain_alloc(struct tb_nhi *nhi, int timeout_msec, size_t privsize); |
|
int tb_domain_add(struct tb *tb); |
|
void tb_domain_remove(struct tb *tb); |
|
int tb_domain_suspend_noirq(struct tb *tb); |
|
int tb_domain_resume_noirq(struct tb *tb); |
|
int tb_domain_suspend(struct tb *tb); |
|
int tb_domain_freeze_noirq(struct tb *tb); |
|
int tb_domain_thaw_noirq(struct tb *tb); |
|
void tb_domain_complete(struct tb *tb); |
|
int tb_domain_runtime_suspend(struct tb *tb); |
|
int tb_domain_runtime_resume(struct tb *tb); |
|
int tb_domain_disapprove_switch(struct tb *tb, struct tb_switch *sw); |
|
int tb_domain_approve_switch(struct tb *tb, struct tb_switch *sw); |
|
int tb_domain_approve_switch_key(struct tb *tb, struct tb_switch *sw); |
|
int tb_domain_challenge_switch_key(struct tb *tb, struct tb_switch *sw); |
|
int tb_domain_disconnect_pcie_paths(struct tb *tb); |
|
int tb_domain_approve_xdomain_paths(struct tb *tb, struct tb_xdomain *xd, |
|
int transmit_path, int transmit_ring, |
|
int receive_path, int receive_ring); |
|
int tb_domain_disconnect_xdomain_paths(struct tb *tb, struct tb_xdomain *xd, |
|
int transmit_path, int transmit_ring, |
|
int receive_path, int receive_ring); |
|
int tb_domain_disconnect_all_paths(struct tb *tb); |
|
|
|
static inline struct tb *tb_domain_get(struct tb *tb) |
|
{ |
|
if (tb) |
|
get_device(&tb->dev); |
|
return tb; |
|
} |
|
|
|
static inline void tb_domain_put(struct tb *tb) |
|
{ |
|
put_device(&tb->dev); |
|
} |
|
|
|
struct tb_nvm *tb_nvm_alloc(struct device *dev); |
|
int tb_nvm_add_active(struct tb_nvm *nvm, size_t size, nvmem_reg_read_t reg_read); |
|
int tb_nvm_write_buf(struct tb_nvm *nvm, unsigned int offset, void *val, |
|
size_t bytes); |
|
int tb_nvm_add_non_active(struct tb_nvm *nvm, size_t size, |
|
nvmem_reg_write_t reg_write); |
|
void tb_nvm_free(struct tb_nvm *nvm); |
|
void tb_nvm_exit(void); |
|
|
|
typedef int (*read_block_fn)(void *, unsigned int, void *, size_t); |
|
typedef int (*write_block_fn)(void *, unsigned int, const void *, size_t); |
|
|
|
int tb_nvm_read_data(unsigned int address, void *buf, size_t size, |
|
unsigned int retries, read_block_fn read_block, |
|
void *read_block_data); |
|
int tb_nvm_write_data(unsigned int address, const void *buf, size_t size, |
|
unsigned int retries, write_block_fn write_next_block, |
|
void *write_block_data); |
|
|
|
struct tb_switch *tb_switch_alloc(struct tb *tb, struct device *parent, |
|
u64 route); |
|
struct tb_switch *tb_switch_alloc_safe_mode(struct tb *tb, |
|
struct device *parent, u64 route); |
|
int tb_switch_configure(struct tb_switch *sw); |
|
int tb_switch_add(struct tb_switch *sw); |
|
void tb_switch_remove(struct tb_switch *sw); |
|
void tb_switch_suspend(struct tb_switch *sw, bool runtime); |
|
int tb_switch_resume(struct tb_switch *sw); |
|
int tb_switch_reset(struct tb_switch *sw); |
|
int tb_switch_wait_for_bit(struct tb_switch *sw, u32 offset, u32 bit, |
|
u32 value, int timeout_msec); |
|
void tb_sw_set_unplugged(struct tb_switch *sw); |
|
struct tb_port *tb_switch_find_port(struct tb_switch *sw, |
|
enum tb_port_type type); |
|
struct tb_switch *tb_switch_find_by_link_depth(struct tb *tb, u8 link, |
|
u8 depth); |
|
struct tb_switch *tb_switch_find_by_uuid(struct tb *tb, const uuid_t *uuid); |
|
struct tb_switch *tb_switch_find_by_route(struct tb *tb, u64 route); |
|
|
|
/** |
|
* tb_switch_for_each_port() - Iterate over each switch port |
|
* @sw: Switch whose ports to iterate |
|
* @p: Port used as iterator |
|
* |
|
* Iterates over each switch port skipping the control port (port %0). |
|
*/ |
|
#define tb_switch_for_each_port(sw, p) \ |
|
for ((p) = &(sw)->ports[1]; \ |
|
(p) <= &(sw)->ports[(sw)->config.max_port_number]; (p)++) |
|
|
|
static inline struct tb_switch *tb_switch_get(struct tb_switch *sw) |
|
{ |
|
if (sw) |
|
get_device(&sw->dev); |
|
return sw; |
|
} |
|
|
|
static inline void tb_switch_put(struct tb_switch *sw) |
|
{ |
|
put_device(&sw->dev); |
|
} |
|
|
|
static inline bool tb_is_switch(const struct device *dev) |
|
{ |
|
return dev->type == &tb_switch_type; |
|
} |
|
|
|
static inline struct tb_switch *tb_to_switch(struct device *dev) |
|
{ |
|
if (tb_is_switch(dev)) |
|
return container_of(dev, struct tb_switch, dev); |
|
return NULL; |
|
} |
|
|
|
static inline struct tb_switch *tb_switch_parent(struct tb_switch *sw) |
|
{ |
|
return tb_to_switch(sw->dev.parent); |
|
} |
|
|
|
static inline bool tb_switch_is_light_ridge(const struct tb_switch *sw) |
|
{ |
|
return sw->config.vendor_id == PCI_VENDOR_ID_INTEL && |
|
sw->config.device_id == PCI_DEVICE_ID_INTEL_LIGHT_RIDGE; |
|
} |
|
|
|
static inline bool tb_switch_is_eagle_ridge(const struct tb_switch *sw) |
|
{ |
|
return sw->config.vendor_id == PCI_VENDOR_ID_INTEL && |
|
sw->config.device_id == PCI_DEVICE_ID_INTEL_EAGLE_RIDGE; |
|
} |
|
|
|
static inline bool tb_switch_is_cactus_ridge(const struct tb_switch *sw) |
|
{ |
|
if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) { |
|
switch (sw->config.device_id) { |
|
case PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_2C: |
|
case PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C: |
|
return true; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
static inline bool tb_switch_is_falcon_ridge(const struct tb_switch *sw) |
|
{ |
|
if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) { |
|
switch (sw->config.device_id) { |
|
case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_BRIDGE: |
|
case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_BRIDGE: |
|
return true; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
static inline bool tb_switch_is_alpine_ridge(const struct tb_switch *sw) |
|
{ |
|
if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) { |
|
switch (sw->config.device_id) { |
|
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_BRIDGE: |
|
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_LP_BRIDGE: |
|
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_BRIDGE: |
|
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_2C_BRIDGE: |
|
return true; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
static inline bool tb_switch_is_titan_ridge(const struct tb_switch *sw) |
|
{ |
|
if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) { |
|
switch (sw->config.device_id) { |
|
case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_BRIDGE: |
|
case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_BRIDGE: |
|
case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_BRIDGE: |
|
return true; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
static inline bool tb_switch_is_tiger_lake(const struct tb_switch *sw) |
|
{ |
|
if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) { |
|
switch (sw->config.device_id) { |
|
case PCI_DEVICE_ID_INTEL_TGL_NHI0: |
|
case PCI_DEVICE_ID_INTEL_TGL_NHI1: |
|
case PCI_DEVICE_ID_INTEL_TGL_H_NHI0: |
|
case PCI_DEVICE_ID_INTEL_TGL_H_NHI1: |
|
return true; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
/** |
|
* tb_switch_is_usb4() - Is the switch USB4 compliant |
|
* @sw: Switch to check |
|
* |
|
* Returns true if the @sw is USB4 compliant router, false otherwise. |
|
*/ |
|
static inline bool tb_switch_is_usb4(const struct tb_switch *sw) |
|
{ |
|
return sw->config.thunderbolt_version == USB4_VERSION_1_0; |
|
} |
|
|
|
/** |
|
* tb_switch_is_icm() - Is the switch handled by ICM firmware |
|
* @sw: Switch to check |
|
* |
|
* In case there is a need to differentiate whether ICM firmware or SW CM |
|
* is handling @sw this function can be called. It is valid to call this |
|
* after tb_switch_alloc() and tb_switch_configure() has been called |
|
* (latter only for SW CM case). |
|
*/ |
|
static inline bool tb_switch_is_icm(const struct tb_switch *sw) |
|
{ |
|
return !sw->config.enabled; |
|
} |
|
|
|
int tb_switch_lane_bonding_enable(struct tb_switch *sw); |
|
void tb_switch_lane_bonding_disable(struct tb_switch *sw); |
|
int tb_switch_configure_link(struct tb_switch *sw); |
|
void tb_switch_unconfigure_link(struct tb_switch *sw); |
|
|
|
bool tb_switch_query_dp_resource(struct tb_switch *sw, struct tb_port *in); |
|
int tb_switch_alloc_dp_resource(struct tb_switch *sw, struct tb_port *in); |
|
void tb_switch_dealloc_dp_resource(struct tb_switch *sw, struct tb_port *in); |
|
|
|
int tb_switch_tmu_init(struct tb_switch *sw); |
|
int tb_switch_tmu_post_time(struct tb_switch *sw); |
|
int tb_switch_tmu_disable(struct tb_switch *sw); |
|
int tb_switch_tmu_enable(struct tb_switch *sw); |
|
void tb_switch_tmu_configure(struct tb_switch *sw, |
|
enum tb_switch_tmu_rate rate, |
|
bool unidirectional); |
|
/** |
|
* tb_switch_tmu_hifi_is_enabled() - Checks if the specified TMU mode is enabled |
|
* @sw: Router whose TMU mode to check |
|
* @unidirectional: If uni-directional (bi-directional otherwise) |
|
* |
|
* Return true if hardware TMU configuration matches the one passed in |
|
* as parameter. That is HiFi and either uni-directional or bi-directional. |
|
*/ |
|
static inline bool tb_switch_tmu_hifi_is_enabled(const struct tb_switch *sw, |
|
bool unidirectional) |
|
{ |
|
return sw->tmu.rate == TB_SWITCH_TMU_RATE_HIFI && |
|
sw->tmu.unidirectional == unidirectional; |
|
} |
|
|
|
int tb_switch_enable_clx(struct tb_switch *sw, enum tb_clx clx); |
|
int tb_switch_disable_clx(struct tb_switch *sw, enum tb_clx clx); |
|
|
|
/** |
|
* tb_switch_is_clx_enabled() - Checks if the CLx is enabled |
|
* @sw: Router to check the CLx state for |
|
* |
|
* Checks if the CLx is enabled on the router upstream link. |
|
* Not applicable for a host router. |
|
*/ |
|
static inline bool tb_switch_is_clx_enabled(const struct tb_switch *sw) |
|
{ |
|
return sw->clx != TB_CLX_DISABLE; |
|
} |
|
|
|
/** |
|
* tb_switch_is_cl0s_enabled() - Checks if the CL0s is enabled |
|
* @sw: Router to check for the CL0s |
|
* |
|
* Checks if the CL0s is enabled on the router upstream link. |
|
* Not applicable for a host router. |
|
*/ |
|
static inline bool tb_switch_is_cl0s_enabled(const struct tb_switch *sw) |
|
{ |
|
return sw->clx == TB_CL0S; |
|
} |
|
|
|
/** |
|
* tb_switch_is_clx_supported() - Is CLx supported on this type of router |
|
* @sw: The router to check CLx support for |
|
*/ |
|
static inline bool tb_switch_is_clx_supported(const struct tb_switch *sw) |
|
{ |
|
return tb_switch_is_usb4(sw) || tb_switch_is_titan_ridge(sw); |
|
} |
|
|
|
int tb_switch_mask_clx_objections(struct tb_switch *sw); |
|
|
|
int tb_switch_pcie_l1_enable(struct tb_switch *sw); |
|
|
|
int tb_wait_for_port(struct tb_port *port, bool wait_if_unplugged); |
|
int tb_port_add_nfc_credits(struct tb_port *port, int credits); |
|
int tb_port_clear_counter(struct tb_port *port, int counter); |
|
int tb_port_unlock(struct tb_port *port); |
|
int tb_port_enable(struct tb_port *port); |
|
int tb_port_disable(struct tb_port *port); |
|
int tb_port_alloc_in_hopid(struct tb_port *port, int hopid, int max_hopid); |
|
void tb_port_release_in_hopid(struct tb_port *port, int hopid); |
|
int tb_port_alloc_out_hopid(struct tb_port *port, int hopid, int max_hopid); |
|
void tb_port_release_out_hopid(struct tb_port *port, int hopid); |
|
struct tb_port *tb_next_port_on_path(struct tb_port *start, struct tb_port *end, |
|
struct tb_port *prev); |
|
|
|
static inline bool tb_port_use_credit_allocation(const struct tb_port *port) |
|
{ |
|
return tb_port_is_null(port) && port->sw->credit_allocation; |
|
} |
|
|
|
/** |
|
* tb_for_each_port_on_path() - Iterate over each port on path |
|
* @src: Source port |
|
* @dst: Destination port |
|
* @p: Port used as iterator |
|
* |
|
* Walks over each port on path from @src to @dst. |
|
*/ |
|
#define tb_for_each_port_on_path(src, dst, p) \ |
|
for ((p) = tb_next_port_on_path((src), (dst), NULL); (p); \ |
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(p) = tb_next_port_on_path((src), (dst), (p))) |
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int tb_port_get_link_speed(struct tb_port *port); |
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int tb_port_get_link_width(struct tb_port *port); |
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int tb_port_state(struct tb_port *port); |
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int tb_port_lane_bonding_enable(struct tb_port *port); |
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void tb_port_lane_bonding_disable(struct tb_port *port); |
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int tb_port_wait_for_link_width(struct tb_port *port, int width, |
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int timeout_msec); |
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int tb_port_update_credits(struct tb_port *port); |
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int tb_switch_find_vse_cap(struct tb_switch *sw, enum tb_switch_vse_cap vsec); |
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int tb_switch_find_cap(struct tb_switch *sw, enum tb_switch_cap cap); |
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int tb_switch_next_cap(struct tb_switch *sw, unsigned int offset); |
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int tb_port_find_cap(struct tb_port *port, enum tb_port_cap cap); |
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int tb_port_next_cap(struct tb_port *port, unsigned int offset); |
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bool tb_port_is_enabled(struct tb_port *port); |
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bool tb_usb3_port_is_enabled(struct tb_port *port); |
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int tb_usb3_port_enable(struct tb_port *port, bool enable); |
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bool tb_pci_port_is_enabled(struct tb_port *port); |
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int tb_pci_port_enable(struct tb_port *port, bool enable); |
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int tb_dp_port_hpd_is_active(struct tb_port *port); |
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int tb_dp_port_hpd_clear(struct tb_port *port); |
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int tb_dp_port_set_hops(struct tb_port *port, unsigned int video, |
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unsigned int aux_tx, unsigned int aux_rx); |
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bool tb_dp_port_is_enabled(struct tb_port *port); |
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int tb_dp_port_enable(struct tb_port *port, bool enable); |
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struct tb_path *tb_path_discover(struct tb_port *src, int src_hopid, |
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struct tb_port *dst, int dst_hopid, |
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struct tb_port **last, const char *name, |
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bool alloc_hopid); |
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struct tb_path *tb_path_alloc(struct tb *tb, struct tb_port *src, int src_hopid, |
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struct tb_port *dst, int dst_hopid, int link_nr, |
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const char *name); |
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void tb_path_free(struct tb_path *path); |
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int tb_path_activate(struct tb_path *path); |
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void tb_path_deactivate(struct tb_path *path); |
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bool tb_path_is_invalid(struct tb_path *path); |
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bool tb_path_port_on_path(const struct tb_path *path, |
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const struct tb_port *port); |
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/** |
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* tb_path_for_each_hop() - Iterate over each hop on path |
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* @path: Path whose hops to iterate |
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* @hop: Hop used as iterator |
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* |
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* Iterates over each hop on path. |
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*/ |
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#define tb_path_for_each_hop(path, hop) \ |
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for ((hop) = &(path)->hops[0]; \ |
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(hop) <= &(path)->hops[(path)->path_length - 1]; (hop)++) |
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int tb_drom_read(struct tb_switch *sw); |
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int tb_drom_read_uid_only(struct tb_switch *sw, u64 *uid); |
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int tb_lc_read_uuid(struct tb_switch *sw, u32 *uuid); |
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int tb_lc_configure_port(struct tb_port *port); |
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void tb_lc_unconfigure_port(struct tb_port *port); |
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int tb_lc_configure_xdomain(struct tb_port *port); |
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void tb_lc_unconfigure_xdomain(struct tb_port *port); |
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int tb_lc_start_lane_initialization(struct tb_port *port); |
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bool tb_lc_is_clx_supported(struct tb_port *port); |
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int tb_lc_set_wake(struct tb_switch *sw, unsigned int flags); |
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int tb_lc_set_sleep(struct tb_switch *sw); |
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bool tb_lc_lane_bonding_possible(struct tb_switch *sw); |
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bool tb_lc_dp_sink_query(struct tb_switch *sw, struct tb_port *in); |
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int tb_lc_dp_sink_alloc(struct tb_switch *sw, struct tb_port *in); |
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int tb_lc_dp_sink_dealloc(struct tb_switch *sw, struct tb_port *in); |
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int tb_lc_force_power(struct tb_switch *sw); |
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static inline int tb_route_length(u64 route) |
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{ |
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return (fls64(route) + TB_ROUTE_SHIFT - 1) / TB_ROUTE_SHIFT; |
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} |
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/** |
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* tb_downstream_route() - get route to downstream switch |
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* |
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* Port must not be the upstream port (otherwise a loop is created). |
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* |
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* Return: Returns a route to the switch behind @port. |
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*/ |
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static inline u64 tb_downstream_route(struct tb_port *port) |
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{ |
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return tb_route(port->sw) |
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| ((u64) port->port << (port->sw->config.depth * 8)); |
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} |
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bool tb_is_xdomain_enabled(void); |
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bool tb_xdomain_handle_request(struct tb *tb, enum tb_cfg_pkg_type type, |
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const void *buf, size_t size); |
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struct tb_xdomain *tb_xdomain_alloc(struct tb *tb, struct device *parent, |
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u64 route, const uuid_t *local_uuid, |
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const uuid_t *remote_uuid); |
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void tb_xdomain_add(struct tb_xdomain *xd); |
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void tb_xdomain_remove(struct tb_xdomain *xd); |
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struct tb_xdomain *tb_xdomain_find_by_link_depth(struct tb *tb, u8 link, |
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u8 depth); |
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int tb_retimer_scan(struct tb_port *port, bool add); |
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void tb_retimer_remove_all(struct tb_port *port); |
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static inline bool tb_is_retimer(const struct device *dev) |
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{ |
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return dev->type == &tb_retimer_type; |
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} |
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static inline struct tb_retimer *tb_to_retimer(struct device *dev) |
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{ |
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if (tb_is_retimer(dev)) |
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return container_of(dev, struct tb_retimer, dev); |
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return NULL; |
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} |
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int usb4_switch_setup(struct tb_switch *sw); |
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int usb4_switch_read_uid(struct tb_switch *sw, u64 *uid); |
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int usb4_switch_drom_read(struct tb_switch *sw, unsigned int address, void *buf, |
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size_t size); |
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bool usb4_switch_lane_bonding_possible(struct tb_switch *sw); |
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int usb4_switch_set_wake(struct tb_switch *sw, unsigned int flags); |
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int usb4_switch_set_sleep(struct tb_switch *sw); |
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int usb4_switch_nvm_sector_size(struct tb_switch *sw); |
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int usb4_switch_nvm_read(struct tb_switch *sw, unsigned int address, void *buf, |
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size_t size); |
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int usb4_switch_nvm_set_offset(struct tb_switch *sw, unsigned int address); |
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int usb4_switch_nvm_write(struct tb_switch *sw, unsigned int address, |
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const void *buf, size_t size); |
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int usb4_switch_nvm_authenticate(struct tb_switch *sw); |
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int usb4_switch_nvm_authenticate_status(struct tb_switch *sw, u32 *status); |
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int usb4_switch_credits_init(struct tb_switch *sw); |
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bool usb4_switch_query_dp_resource(struct tb_switch *sw, struct tb_port *in); |
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int usb4_switch_alloc_dp_resource(struct tb_switch *sw, struct tb_port *in); |
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int usb4_switch_dealloc_dp_resource(struct tb_switch *sw, struct tb_port *in); |
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struct tb_port *usb4_switch_map_pcie_down(struct tb_switch *sw, |
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const struct tb_port *port); |
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struct tb_port *usb4_switch_map_usb3_down(struct tb_switch *sw, |
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const struct tb_port *port); |
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int usb4_switch_add_ports(struct tb_switch *sw); |
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void usb4_switch_remove_ports(struct tb_switch *sw); |
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int usb4_port_unlock(struct tb_port *port); |
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int usb4_port_configure(struct tb_port *port); |
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void usb4_port_unconfigure(struct tb_port *port); |
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int usb4_port_configure_xdomain(struct tb_port *port); |
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void usb4_port_unconfigure_xdomain(struct tb_port *port); |
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int usb4_port_router_offline(struct tb_port *port); |
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int usb4_port_router_online(struct tb_port *port); |
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int usb4_port_enumerate_retimers(struct tb_port *port); |
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bool usb4_port_clx_supported(struct tb_port *port); |
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int usb4_port_retimer_set_inbound_sbtx(struct tb_port *port, u8 index); |
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int usb4_port_retimer_read(struct tb_port *port, u8 index, u8 reg, void *buf, |
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u8 size); |
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int usb4_port_retimer_write(struct tb_port *port, u8 index, u8 reg, |
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const void *buf, u8 size); |
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int usb4_port_retimer_is_last(struct tb_port *port, u8 index); |
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int usb4_port_retimer_nvm_sector_size(struct tb_port *port, u8 index); |
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int usb4_port_retimer_nvm_set_offset(struct tb_port *port, u8 index, |
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unsigned int address); |
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int usb4_port_retimer_nvm_write(struct tb_port *port, u8 index, |
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unsigned int address, const void *buf, |
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size_t size); |
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int usb4_port_retimer_nvm_authenticate(struct tb_port *port, u8 index); |
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int usb4_port_retimer_nvm_authenticate_status(struct tb_port *port, u8 index, |
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u32 *status); |
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int usb4_port_retimer_nvm_read(struct tb_port *port, u8 index, |
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unsigned int address, void *buf, size_t size); |
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int usb4_usb3_port_max_link_rate(struct tb_port *port); |
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int usb4_usb3_port_actual_link_rate(struct tb_port *port); |
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int usb4_usb3_port_allocated_bandwidth(struct tb_port *port, int *upstream_bw, |
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int *downstream_bw); |
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int usb4_usb3_port_allocate_bandwidth(struct tb_port *port, int *upstream_bw, |
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int *downstream_bw); |
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int usb4_usb3_port_release_bandwidth(struct tb_port *port, int *upstream_bw, |
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int *downstream_bw); |
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static inline bool tb_is_usb4_port_device(const struct device *dev) |
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{ |
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return dev->type == &usb4_port_device_type; |
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} |
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static inline struct usb4_port *tb_to_usb4_port_device(struct device *dev) |
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{ |
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if (tb_is_usb4_port_device(dev)) |
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return container_of(dev, struct usb4_port, dev); |
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return NULL; |
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} |
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struct usb4_port *usb4_port_device_add(struct tb_port *port); |
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void usb4_port_device_remove(struct usb4_port *usb4); |
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int usb4_port_device_resume(struct usb4_port *usb4); |
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/* Keep link controller awake during update */ |
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#define QUIRK_FORCE_POWER_LINK_CONTROLLER BIT(0) |
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void tb_check_quirks(struct tb_switch *sw); |
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#ifdef CONFIG_ACPI |
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void tb_acpi_add_links(struct tb_nhi *nhi); |
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bool tb_acpi_is_native(void); |
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bool tb_acpi_may_tunnel_usb3(void); |
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bool tb_acpi_may_tunnel_dp(void); |
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bool tb_acpi_may_tunnel_pcie(void); |
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bool tb_acpi_is_xdomain_allowed(void); |
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int tb_acpi_init(void); |
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void tb_acpi_exit(void); |
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int tb_acpi_power_on_retimers(struct tb_port *port); |
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int tb_acpi_power_off_retimers(struct tb_port *port); |
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#else |
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static inline void tb_acpi_add_links(struct tb_nhi *nhi) { } |
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static inline bool tb_acpi_is_native(void) { return true; } |
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static inline bool tb_acpi_may_tunnel_usb3(void) { return true; } |
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static inline bool tb_acpi_may_tunnel_dp(void) { return true; } |
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static inline bool tb_acpi_may_tunnel_pcie(void) { return true; } |
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static inline bool tb_acpi_is_xdomain_allowed(void) { return true; } |
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static inline int tb_acpi_init(void) { return 0; } |
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static inline void tb_acpi_exit(void) { } |
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static inline int tb_acpi_power_on_retimers(struct tb_port *port) { return 0; } |
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static inline int tb_acpi_power_off_retimers(struct tb_port *port) { return 0; } |
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#endif |
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#ifdef CONFIG_DEBUG_FS |
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void tb_debugfs_init(void); |
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void tb_debugfs_exit(void); |
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void tb_switch_debugfs_init(struct tb_switch *sw); |
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void tb_switch_debugfs_remove(struct tb_switch *sw); |
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void tb_service_debugfs_init(struct tb_service *svc); |
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void tb_service_debugfs_remove(struct tb_service *svc); |
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#else |
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static inline void tb_debugfs_init(void) { } |
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static inline void tb_debugfs_exit(void) { } |
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static inline void tb_switch_debugfs_init(struct tb_switch *sw) { } |
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static inline void tb_switch_debugfs_remove(struct tb_switch *sw) { } |
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static inline void tb_service_debugfs_init(struct tb_service *svc) { } |
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static inline void tb_service_debugfs_remove(struct tb_service *svc) { } |
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#endif |
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#ifdef CONFIG_USB4_KUNIT_TEST |
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int tb_test_init(void); |
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void tb_test_exit(void); |
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#else |
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static inline int tb_test_init(void) { return 0; } |
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static inline void tb_test_exit(void) { } |
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#endif |
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#endif
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