Lines Matching +full:functional +full:- +full:system +full:- +full:alpine
1 // SPDX-License-Identifier: GPL-2.0
3 * Thunderbolt driver - switch/port utility functions
12 #include <linux/nvmem-provider.h>
42 if (uuid_equal(&st->uuid, sw->uuid)) in __nvm_get_auth_status()
57 *status = st ? st->status : 0; in nvm_get_auth_status()
64 if (WARN_ON(!sw->uuid)) in nvm_set_auth_status()
75 memcpy(&st->uuid, sw->uuid, sizeof(st->uuid)); in nvm_set_auth_status()
76 INIT_LIST_HEAD(&st->list); in nvm_set_auth_status()
77 list_add_tail(&st->list, &nvm_auth_status_cache); in nvm_set_auth_status()
80 st->status = status; in nvm_set_auth_status()
92 list_del(&st->list); in nvm_clear_auth_status()
104 ret = tb_nvm_validate(sw->nvm); in nvm_validate_and_write()
108 ret = tb_nvm_write_headers(sw->nvm); in nvm_validate_and_write()
112 buf = sw->nvm->buf_data_start; in nvm_validate_and_write()
113 image_size = sw->nvm->buf_data_size; in nvm_validate_and_write()
118 ret = dma_port_flash_write(sw->dma_port, 0, buf, image_size); in nvm_validate_and_write()
122 sw->nvm->flushed = true; in nvm_validate_and_write()
135 if (!sw->safe_mode) { in nvm_authenticate_host_dma_port()
138 ret = tb_domain_disconnect_all_paths(sw->tb); in nvm_authenticate_host_dma_port()
145 ret = dma_port_flash_update_auth(sw->dma_port); in nvm_authenticate_host_dma_port()
146 if (!ret || ret == -ETIMEDOUT) in nvm_authenticate_host_dma_port()
154 if (dma_port_flash_update_auth_status(sw->dma_port, &status) > 0) in nvm_authenticate_host_dma_port()
162 dma_port_power_cycle(sw->dma_port); in nvm_authenticate_host_dma_port()
170 ret = dma_port_flash_update_auth(sw->dma_port); in nvm_authenticate_device_dma_port()
173 case -ETIMEDOUT: in nvm_authenticate_device_dma_port()
174 case -EACCES: in nvm_authenticate_device_dma_port()
175 case -EINVAL: in nvm_authenticate_device_dma_port()
191 ret = dma_port_flash_update_auth_status(sw->dma_port, &status); in nvm_authenticate_device_dma_port()
192 if (ret < 0 && ret != -ETIMEDOUT) in nvm_authenticate_device_dma_port()
201 dma_port_power_cycle(sw->dma_port); in nvm_authenticate_device_dma_port()
206 } while (--retries); in nvm_authenticate_device_dma_port()
208 return -ETIMEDOUT; in nvm_authenticate_device_dma_port()
221 root_port = pcie_find_root_port(sw->tb->nhi->pdev); in nvm_authenticate_start_dma_port()
223 pm_runtime_get_noresume(&root_port->dev); in nvm_authenticate_start_dma_port()
230 root_port = pcie_find_root_port(sw->tb->nhi->pdev); in nvm_authenticate_complete_dma_port()
232 pm_runtime_put(&root_port->dev); in nvm_authenticate_complete_dma_port()
248 return !!sw->dma_port; in nvm_readable()
253 if (sw->no_nvm_upgrade) in nvm_upgradeable()
268 sw->nvm->authenticating = true; in nvm_authenticate()
272 return -EOPNOTSUPP; in nvm_authenticate()
274 sw->nvm->authenticating = true; in nvm_authenticate()
286 * tb_switch_nvm_read() - Read router NVM
301 return dma_port_flash_read(sw->dma_port, address, buf, size); in tb_switch_nvm_read()
307 struct tb_switch *sw = tb_to_switch(nvm->dev); in nvm_read()
310 pm_runtime_get_sync(&sw->dev); in nvm_read()
312 if (!mutex_trylock(&sw->tb->lock)) { in nvm_read()
318 mutex_unlock(&sw->tb->lock); in nvm_read()
321 pm_runtime_mark_last_busy(&sw->dev); in nvm_read()
322 pm_runtime_put_autosuspend(&sw->dev); in nvm_read()
330 struct tb_switch *sw = tb_to_switch(nvm->dev); in nvm_write()
333 if (!mutex_trylock(&sw->tb->lock)) in nvm_write()
343 mutex_unlock(&sw->tb->lock); in nvm_write()
356 nvm = tb_nvm_alloc(&sw->dev); in tb_switch_nvm_add()
358 ret = PTR_ERR(nvm) == -EOPNOTSUPP ? 0 : PTR_ERR(nvm); in tb_switch_nvm_add()
367 * If the switch is in safe-mode the only accessible portion of in tb_switch_nvm_add()
368 * the NVM is the non-active one where userspace is expected to in tb_switch_nvm_add()
369 * write new functional NVM. in tb_switch_nvm_add()
371 if (!sw->safe_mode) { in tb_switch_nvm_add()
377 if (!sw->no_nvm_upgrade) { in tb_switch_nvm_add()
383 sw->nvm = nvm; in tb_switch_nvm_add()
388 sw->no_nvm_upgrade = true; in tb_switch_nvm_add()
399 nvm = sw->nvm; in tb_switch_nvm_remove()
400 sw->nvm = NULL; in tb_switch_nvm_remove()
406 if (!nvm->authenticating) in tb_switch_nvm_remove()
416 switch (port->type >> 16) { in tb_port_type()
418 switch ((u8) port->type) { in tb_port_type()
445 const struct tb_regs_port_header *regs = &port->config; in tb_dump_port()
449 regs->port_number, regs->vendor_id, regs->device_id, in tb_dump_port()
450 regs->revision, regs->thunderbolt_version, tb_port_type(regs), in tb_dump_port()
451 regs->type); in tb_dump_port()
453 regs->max_in_hop_id, regs->max_out_hop_id); in tb_dump_port()
454 tb_dbg(tb, " Max counters: %d\n", regs->max_counters); in tb_dump_port()
455 tb_dbg(tb, " NFC Credits: %#x\n", regs->nfc_credits); in tb_dump_port()
456 tb_dbg(tb, " Credits (total/control): %u/%u\n", port->total_credits, in tb_dump_port()
457 port->ctl_credits); in tb_dump_port()
461 * tb_port_state() - get connectedness state of a port
472 if (port->cap_phy == 0) { in tb_port_state()
474 return -EINVAL; in tb_port_state()
476 res = tb_port_read(port, &phy, TB_CFG_PORT, port->cap_phy, 2); in tb_port_state()
483 * tb_wait_for_port() - wait for a port to become ready
501 if (!port->cap_phy) { in tb_wait_for_port()
503 return -EINVAL; in tb_wait_for_port()
507 return -EINVAL; in tb_wait_for_port()
510 while (retries--) { in tb_wait_for_port()
541 * After plug-in the state is TB_PORT_CONNECTING. Give it some in tb_wait_for_port()
557 * tb_port_add_nfc_credits() - add/remove non flow controlled credits to port
570 if (credits == 0 || port->sw->is_unplugged) in tb_port_add_nfc_credits()
577 if (tb_switch_is_usb4(port->sw) && !tb_port_is_null(port)) in tb_port_add_nfc_credits()
580 nfc_credits = port->config.nfc_credits & ADP_CS_4_NFC_BUFFERS_MASK; in tb_port_add_nfc_credits()
582 credits = max_t(int, -nfc_credits, credits); in tb_port_add_nfc_credits()
587 port->config.nfc_credits & ADP_CS_4_NFC_BUFFERS_MASK); in tb_port_add_nfc_credits()
589 port->config.nfc_credits &= ~ADP_CS_4_NFC_BUFFERS_MASK; in tb_port_add_nfc_credits()
590 port->config.nfc_credits |= nfc_credits; in tb_port_add_nfc_credits()
592 return tb_port_write(port, &port->config.nfc_credits, in tb_port_add_nfc_credits()
597 * tb_port_clear_counter() - clear a counter in TB_CFG_COUNTER
611 * tb_port_unlock() - Unlock downstream port
619 if (tb_switch_is_icm(port->sw)) in tb_port_unlock()
622 return -EINVAL; in tb_port_unlock()
623 if (tb_switch_is_usb4(port->sw)) in tb_port_unlock()
634 return -EINVAL; in __tb_port_enable()
637 port->cap_phy + LANE_ADP_CS_1, 1); in __tb_port_enable()
648 port->cap_phy + LANE_ADP_CS_1, 1); in __tb_port_enable()
657 * tb_port_enable() - Enable lane adapter
668 * tb_port_disable() - Disable lane adapter
680 if (tb_switch_is_usb4(port->sw)) in tb_port_reset()
681 return port->cap_usb4 ? usb4_port_reset(port) : 0; in tb_port_reset()
686 * tb_init_port() - initialize a port
698 INIT_LIST_HEAD(&port->list); in tb_init_port()
701 if (!port->port) in tb_init_port()
704 res = tb_port_read(port, &port->config, TB_CFG_PORT, 0, 8); in tb_init_port()
706 if (res == -ENODEV) { in tb_init_port()
707 tb_dbg(port->sw->tb, " Port %d: not implemented\n", in tb_init_port()
708 port->port); in tb_init_port()
709 port->disabled = true; in tb_init_port()
716 if (port->config.type == TB_TYPE_PORT) { in tb_init_port()
720 port->cap_phy = cap; in tb_init_port()
726 port->cap_usb4 = cap; in tb_init_port()
731 * devices we use hard-coded value. in tb_init_port()
733 if (port->cap_usb4) { in tb_init_port()
737 port->ctl_credits = hop.initial_credits; in tb_init_port()
739 if (!port->ctl_credits) in tb_init_port()
740 port->ctl_credits = 2; in tb_init_port()
745 port->cap_adap = cap; in tb_init_port()
748 port->total_credits = in tb_init_port()
749 (port->config.nfc_credits & ADP_CS_4_TOTAL_BUFFERS_MASK) >> in tb_init_port()
752 tb_dump_port(port->sw->tb, port); in tb_init_port()
763 port_max_hopid = port->config.max_in_hop_id; in tb_port_alloc_hopid()
764 ida = &port->in_hopids; in tb_port_alloc_hopid()
766 port_max_hopid = port->config.max_out_hop_id; in tb_port_alloc_hopid()
767 ida = &port->out_hopids; in tb_port_alloc_hopid()
771 * NHI can use HopIDs 1-max for other adapters HopIDs 0-7 are in tb_port_alloc_hopid()
784 * tb_port_alloc_in_hopid() - Allocate input HopID from port
798 * tb_port_alloc_out_hopid() - Allocate output HopID from port
812 * tb_port_release_in_hopid() - Release allocated input HopID from port
818 ida_simple_remove(&port->in_hopids, hopid); in tb_port_release_in_hopid()
822 * tb_port_release_out_hopid() - Release allocated output HopID from port
828 ida_simple_remove(&port->out_hopids, hopid); in tb_port_release_out_hopid()
834 u64 mask = (1ULL << parent->config.depth * 8) - 1; in tb_switch_is_reachable()
839 * tb_next_port_on_path() - Return next port for given port on a path
851 * Domain tb->lock must be held when this function is called.
861 if (prev->sw == end->sw) { in tb_next_port_on_path()
867 if (tb_switch_is_reachable(prev->sw, end->sw)) { in tb_next_port_on_path()
868 next = tb_port_at(tb_route(end->sw), prev->sw); in tb_next_port_on_path()
870 if (prev->remote && in tb_next_port_on_path()
871 (next == prev || next->dual_link_port == prev)) in tb_next_port_on_path()
872 next = prev->remote; in tb_next_port_on_path()
875 next = prev->remote; in tb_next_port_on_path()
877 next = tb_upstream_port(prev->sw); in tb_next_port_on_path()
882 if (next->dual_link_port && in tb_next_port_on_path()
883 next->link_nr != prev->link_nr) { in tb_next_port_on_path()
884 next = next->dual_link_port; in tb_next_port_on_path()
893 * tb_port_get_link_speed() - Get current link speed
903 if (!port->cap_phy) in tb_port_get_link_speed()
904 return -EINVAL; in tb_port_get_link_speed()
907 port->cap_phy + LANE_ADP_CS_1, 1); in tb_port_get_link_speed()
925 * tb_port_get_link_generation() - Returns link generation
967 * tb_port_get_link_width() - Get current link width
978 if (!port->cap_phy) in tb_port_get_link_width()
979 return -EINVAL; in tb_port_get_link_width()
982 port->cap_phy + LANE_ADP_CS_1, 1); in tb_port_get_link_width()
992 * tb_port_width_supported() - Is the given link width supported
1004 if (!port->cap_phy) in tb_port_width_supported()
1014 port->cap_phy + LANE_ADP_CS_0, 1); in tb_port_width_supported()
1027 * tb_port_set_link_width() - Set target link width of the lane adapter
1041 if (!port->cap_phy) in tb_port_set_link_width()
1042 return -EINVAL; in tb_port_set_link_width()
1045 port->cap_phy + LANE_ADP_CS_1, 1); in tb_port_set_link_width()
1054 return -EOPNOTSUPP; in tb_port_set_link_width()
1071 return -EINVAL; in tb_port_set_link_width()
1075 port->cap_phy + LANE_ADP_CS_1, 1); in tb_port_set_link_width()
1079 * tb_port_set_lane_bonding() - Enable/disable lane bonding
1095 if (!port->cap_phy) in tb_port_set_lane_bonding()
1096 return -EINVAL; in tb_port_set_lane_bonding()
1099 port->cap_phy + LANE_ADP_CS_1, 1); in tb_port_set_lane_bonding()
1109 port->cap_phy + LANE_ADP_CS_1, 1); in tb_port_set_lane_bonding()
1113 * tb_port_lane_bonding_enable() - Enable bonding on port
1140 width = tb_port_get_link_width(port->dual_link_port); in tb_port_lane_bonding_enable()
1142 ret = tb_port_set_link_width(port->dual_link_port, in tb_port_lane_bonding_enable()
1150 * avoids the lane adapter to re-enter bonding state. in tb_port_lane_bonding_enable()
1162 port->bonded = true; in tb_port_lane_bonding_enable()
1163 port->dual_link_port->bonded = true; in tb_port_lane_bonding_enable()
1168 tb_port_set_link_width(port->dual_link_port, TB_LINK_WIDTH_SINGLE); in tb_port_lane_bonding_enable()
1176 * tb_port_lane_bonding_disable() - Disable bonding on port
1185 tb_port_set_link_width(port->dual_link_port, TB_LINK_WIDTH_SINGLE); in tb_port_lane_bonding_disable()
1187 port->dual_link_port->bonded = false; in tb_port_lane_bonding_disable()
1188 port->bonded = false; in tb_port_lane_bonding_disable()
1192 * tb_port_wait_for_link_width() - Wait until link reaches specific width
1199 * the expected state. Returns %-ETIMEDOUT if the width was not reached
1212 return -EOPNOTSUPP; in tb_port_wait_for_link_width()
1222 if (ret != -EACCES) in tb_port_wait_for_link_width()
1231 return -ETIMEDOUT; in tb_port_wait_for_link_width()
1243 if (nfc_credits != port->config.nfc_credits) { in tb_port_do_update_credits()
1249 tb_port_dbg(port, "total credits changed %u -> %u\n", in tb_port_do_update_credits()
1250 port->total_credits, total); in tb_port_do_update_credits()
1252 port->config.nfc_credits = nfc_credits; in tb_port_do_update_credits()
1253 port->total_credits = total; in tb_port_do_update_credits()
1260 * tb_port_update_credits() - Re-read port total credits
1264 * credits may change, so this function needs to be called to re-read
1275 if (!port->dual_link_port) in tb_port_update_credits()
1277 return tb_port_do_update_credits(port->dual_link_port); in tb_port_update_credits()
1284 if (tb_switch_is_usb4(port->sw)) in tb_port_start_lane_initialization()
1288 return ret == -EINVAL ? 0 : ret; in tb_port_start_lane_initialization()
1299 if (port->usb4) { in tb_port_resume()
1300 usb4_port_device_resume(port->usb4); in tb_port_resume()
1307 * link gets re-established. in tb_port_resume()
1309 * This is only needed for non-USB4 ports. in tb_port_resume()
1311 if (!tb_is_upstream_port(port) || port->xdomain) in tb_port_resume()
1315 return has_remote || port->xdomain; in tb_port_resume()
1319 * tb_port_is_enabled() - Is the adapter port enabled
1324 switch (port->config.type) { in tb_port_is_enabled()
1343 * tb_usb3_port_is_enabled() - Is the USB3 adapter port enabled
1351 port->cap_adap + ADP_USB3_CS_0, 1)) in tb_usb3_port_is_enabled()
1358 * tb_usb3_port_enable() - Enable USB3 adapter port
1367 if (!port->cap_adap) in tb_usb3_port_enable()
1368 return -ENXIO; in tb_usb3_port_enable()
1370 port->cap_adap + ADP_USB3_CS_0, 1); in tb_usb3_port_enable()
1374 * tb_pci_port_is_enabled() - Is the PCIe adapter port enabled
1382 port->cap_adap + ADP_PCIE_CS_0, 1)) in tb_pci_port_is_enabled()
1389 * tb_pci_port_enable() - Enable PCIe adapter port
1396 if (!port->cap_adap) in tb_pci_port_enable()
1397 return -ENXIO; in tb_pci_port_enable()
1399 port->cap_adap + ADP_PCIE_CS_0, 1); in tb_pci_port_enable()
1403 * tb_dp_port_hpd_is_active() - Is HPD already active
1414 port->cap_adap + ADP_DP_CS_2, 1); in tb_dp_port_hpd_is_active()
1422 * tb_dp_port_hpd_clear() - Clear HPD from DP IN port
1433 port->cap_adap + ADP_DP_CS_3, 1); in tb_dp_port_hpd_clear()
1439 port->cap_adap + ADP_DP_CS_3, 1); in tb_dp_port_hpd_clear()
1443 * tb_dp_port_set_hops() - Set video/aux Hop IDs for DP port
1451 * are read-only.
1459 if (tb_switch_is_usb4(port->sw)) in tb_dp_port_set_hops()
1463 port->cap_adap + ADP_DP_CS_0, ARRAY_SIZE(data)); in tb_dp_port_set_hops()
1478 port->cap_adap + ADP_DP_CS_0, ARRAY_SIZE(data)); in tb_dp_port_set_hops()
1482 * tb_dp_port_is_enabled() - Is DP adapter port enabled
1489 if (tb_port_read(port, data, TB_CFG_PORT, port->cap_adap + ADP_DP_CS_0, in tb_dp_port_is_enabled()
1497 * tb_dp_port_enable() - Enables/disables DP paths of a port
1510 port->cap_adap + ADP_DP_CS_0, ARRAY_SIZE(data)); in tb_dp_port_enable()
1520 port->cap_adap + ADP_DP_CS_0, ARRAY_SIZE(data)); in tb_dp_port_enable()
1527 switch (sw->generation) { in tb_switch_generation_name()
1543 const struct tb_regs_switch_header *regs = &sw->config; in tb_dump_switch()
1546 tb_switch_generation_name(sw), regs->vendor_id, regs->device_id, in tb_dump_switch()
1547 regs->revision, regs->thunderbolt_version); in tb_dump_switch()
1548 tb_dbg(tb, " Max Port Number: %d\n", regs->max_port_number); in tb_dump_switch()
1552 regs->upstream_port_number, regs->depth, in tb_dump_switch()
1553 (((u64) regs->route_hi) << 32) | regs->route_lo, in tb_dump_switch()
1554 regs->enabled, regs->plug_events_delay); in tb_dump_switch()
1556 regs->__unknown1, regs->__unknown4); in tb_dump_switch()
1561 if (sw->generation > 1) { in tb_switch_reset_host()
1594 i <= port->config.max_in_hop_id; i++) { in tb_switch_reset_host()
1604 res.err = tb_sw_write(sw, ((u32 *) &sw->config) + 2, in tb_switch_reset_host()
1608 res = tb_cfg_reset(sw->tb->ctl, tb_route(sw)); in tb_switch_reset_host()
1610 return -EIO; in tb_switch_reset_host()
1630 * during system sleep where sw->config.enabled is already set in tb_switch_enumerated()
1641 * tb_switch_reset() - Perform reset to the router
1680 * tb_switch_wait_for_bit() - Wait for specified value of bits in offset
1688 * Returns %0 in case of success, %-ETIMEDOUT if the @value was not reached
1710 return -ETIMEDOUT; in tb_switch_wait_for_bit()
1714 * tb_plug_events_active() - enable/disable plug events on a switch
1728 sw->config.plug_events_delay = 0xff; in tb_plug_events_active()
1729 res = tb_sw_write(sw, ((u32 *) &sw->config) + 4, TB_CFG_SWITCH, 4, 1); in tb_plug_events_active()
1733 res = tb_sw_read(sw, &data, TB_CFG_SWITCH, sw->cap_plug_events + 1, 1); in tb_plug_events_active()
1739 switch (sw->config.device_id) { in tb_plug_events_active()
1746 * Skip Alpine Ridge, it needs to have vendor in tb_plug_events_active()
1757 sw->cap_plug_events + 1, 1); in tb_plug_events_active()
1766 return sysfs_emit(buf, "%u\n", sw->authorized); in authorized_show()
1775 if (sw && sw->authorized) { in disapprove_switch()
1779 ret = device_for_each_child_reverse(&sw->dev, NULL, disapprove_switch); in disapprove_switch()
1783 ret = tb_domain_disapprove_switch(sw->tb, sw); in disapprove_switch()
1787 sw->authorized = 0; in disapprove_switch()
1788 kobject_uevent_env(&sw->dev.kobj, KOBJ_CHANGE, envp); in disapprove_switch()
1797 int ret = -EINVAL; in tb_switch_set_authorized()
1800 if (!mutex_trylock(&sw->tb->lock)) in tb_switch_set_authorized()
1803 if (!!sw->authorized == !!val) in tb_switch_set_authorized()
1810 ret = disapprove_switch(&sw->dev, NULL); in tb_switch_set_authorized()
1817 if (sw->key) in tb_switch_set_authorized()
1818 ret = tb_domain_approve_switch_key(sw->tb, sw); in tb_switch_set_authorized()
1820 ret = tb_domain_approve_switch(sw->tb, sw); in tb_switch_set_authorized()
1825 if (sw->key) in tb_switch_set_authorized()
1826 ret = tb_domain_challenge_switch_key(sw->tb, sw); in tb_switch_set_authorized()
1834 sw->authorized = val; in tb_switch_set_authorized()
1839 sprintf(envp_string, "AUTHORIZED=%u", sw->authorized); in tb_switch_set_authorized()
1840 kobject_uevent_env(&sw->dev.kobj, KOBJ_CHANGE, envp); in tb_switch_set_authorized()
1844 mutex_unlock(&sw->tb->lock); in tb_switch_set_authorized()
1860 return -EINVAL; in authorized_store()
1862 pm_runtime_get_sync(&sw->dev); in authorized_store()
1864 pm_runtime_mark_last_busy(&sw->dev); in authorized_store()
1865 pm_runtime_put_autosuspend(&sw->dev); in authorized_store()
1876 return sysfs_emit(buf, "%u\n", sw->boot); in boot_show()
1885 return sysfs_emit(buf, "%#x\n", sw->device); in device_show()
1894 return sysfs_emit(buf, "%s\n", sw->device_name ?: ""); in device_name_show()
1903 return sysfs_emit(buf, "%u\n", sw->generation); in generation_show()
1913 if (!mutex_trylock(&sw->tb->lock)) in key_show()
1916 if (sw->key) in key_show()
1917 ret = sysfs_emit(buf, "%*phN\n", TB_SWITCH_KEY_SIZE, sw->key); in key_show()
1921 mutex_unlock(&sw->tb->lock); in key_show()
1936 return -EINVAL; in key_store()
1938 if (!mutex_trylock(&sw->tb->lock)) in key_store()
1941 if (sw->authorized) { in key_store()
1942 ret = -EBUSY; in key_store()
1944 kfree(sw->key); in key_store()
1946 sw->key = NULL; in key_store()
1948 sw->key = kmemdup(key, sizeof(key), GFP_KERNEL); in key_store()
1949 if (!sw->key) in key_store()
1950 ret = -ENOMEM; in key_store()
1954 mutex_unlock(&sw->tb->lock); in key_store()
1964 return sysfs_emit(buf, "%u.0 Gb/s\n", sw->link_speed); in speed_show()
1980 switch (sw->link_width) { in rx_lanes_show()
1993 return -EINVAL; in rx_lanes_show()
2006 switch (sw->link_width) { in tx_lanes_show()
2019 return -EINVAL; in tx_lanes_show()
2042 pm_runtime_get_sync(&sw->dev); in nvm_authenticate_sysfs()
2044 if (!mutex_trylock(&sw->tb->lock)) { in nvm_authenticate_sysfs()
2049 if (sw->no_nvm_upgrade) { in nvm_authenticate_sysfs()
2050 ret = -EOPNOTSUPP; in nvm_authenticate_sysfs()
2055 if (!sw->nvm) { in nvm_authenticate_sysfs()
2056 ret = -EAGAIN; in nvm_authenticate_sysfs()
2070 ret = -EINVAL; in nvm_authenticate_sysfs()
2074 if (!sw->nvm->flushed) { in nvm_authenticate_sysfs()
2075 if (!sw->nvm->buf) { in nvm_authenticate_sysfs()
2076 ret = -EINVAL; in nvm_authenticate_sysfs()
2094 mutex_unlock(&sw->tb->lock); in nvm_authenticate_sysfs()
2096 pm_runtime_mark_last_busy(&sw->dev); in nvm_authenticate_sysfs()
2097 pm_runtime_put_autosuspend(&sw->dev); in nvm_authenticate_sysfs()
2134 if (!mutex_trylock(&sw->tb->lock)) in nvm_version_show()
2137 if (sw->safe_mode) in nvm_version_show()
2138 ret = -ENODATA; in nvm_version_show()
2139 else if (!sw->nvm) in nvm_version_show()
2140 ret = -EAGAIN; in nvm_version_show()
2142 ret = sysfs_emit(buf, "%x.%x\n", sw->nvm->major, sw->nvm->minor); in nvm_version_show()
2144 mutex_unlock(&sw->tb->lock); in nvm_version_show()
2155 return sysfs_emit(buf, "%#x\n", sw->vendor); in vendor_show()
2164 return sysfs_emit(buf, "%s\n", sw->vendor_name ?: ""); in vendor_name_show()
2173 return sysfs_emit(buf, "%pUb\n", sw->uuid); in unique_id_show()
2204 if (sw->tb->security_level == TB_SECURITY_NOPCIE || in switch_attr_is_visible()
2205 sw->tb->security_level == TB_SECURITY_DPONLY) in switch_attr_is_visible()
2208 if (!sw->device) in switch_attr_is_visible()
2211 if (!sw->device_name) in switch_attr_is_visible()
2214 if (!sw->vendor) in switch_attr_is_visible()
2217 if (!sw->vendor_name) in switch_attr_is_visible()
2221 sw->tb->security_level == TB_SECURITY_SECURE && in switch_attr_is_visible()
2222 sw->security_level == TB_SECURITY_SECURE) in switch_attr_is_visible()
2223 return attr->mode; in switch_attr_is_visible()
2230 return attr->mode; in switch_attr_is_visible()
2234 return attr->mode; in switch_attr_is_visible()
2238 return attr->mode; in switch_attr_is_visible()
2242 return attr->mode; in switch_attr_is_visible()
2245 if (sw->quirks & QUIRK_FORCE_POWER_LINK_CONTROLLER) in switch_attr_is_visible()
2246 return attr->mode; in switch_attr_is_visible()
2250 return sw->safe_mode ? 0 : attr->mode; in switch_attr_is_visible()
2268 dma_port_free(sw->dma_port); in tb_switch_release()
2271 ida_destroy(&port->in_hopids); in tb_switch_release()
2272 ida_destroy(&port->out_hopids); in tb_switch_release()
2275 kfree(sw->uuid); in tb_switch_release()
2276 kfree(sw->device_name); in tb_switch_release()
2277 kfree(sw->vendor_name); in tb_switch_release()
2278 kfree(sw->ports); in tb_switch_release()
2279 kfree(sw->drom); in tb_switch_release()
2280 kfree(sw->key); in tb_switch_release()
2292 return -ENOMEM; in tb_switch_uevent()
2303 if (!port->disabled && !tb_is_upstream_port(port) && in tb_switch_uevent()
2314 return -ENOMEM; in tb_switch_uevent()
2325 const struct tb_cm_ops *cm_ops = sw->tb->cm_ops; in tb_switch_runtime_suspend()
2327 if (cm_ops->runtime_suspend_switch) in tb_switch_runtime_suspend()
2328 return cm_ops->runtime_suspend_switch(sw); in tb_switch_runtime_suspend()
2336 const struct tb_cm_ops *cm_ops = sw->tb->cm_ops; in tb_switch_runtime_resume()
2338 if (cm_ops->runtime_resume_switch) in tb_switch_runtime_resume()
2339 return cm_ops->runtime_resume_switch(sw); in tb_switch_runtime_resume()
2360 if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) { in tb_switch_get_generation()
2361 switch (sw->config.device_id) { in tb_switch_get_generation()
2396 sw->config.device_id); in tb_switch_get_generation()
2405 (sw->tb->root_switch && tb_switch_is_usb4(sw->tb->root_switch))) in tb_switch_exceeds_max_depth()
2414 * tb_switch_alloc() - allocate a switch
2445 upstream_port = tb_cfg_get_upstream_port(tb->ctl, route); in tb_switch_alloc()
2451 return ERR_PTR(-ENOMEM); in tb_switch_alloc()
2453 sw->tb = tb; in tb_switch_alloc()
2454 ret = tb_cfg_read(tb->ctl, &sw->config, route, 0, TB_CFG_SWITCH, 0, 5); in tb_switch_alloc()
2458 sw->generation = tb_switch_get_generation(sw); in tb_switch_alloc()
2464 sw->config.upstream_port_number = upstream_port; in tb_switch_alloc()
2465 sw->config.depth = depth; in tb_switch_alloc()
2466 sw->config.route_hi = upper_32_bits(route); in tb_switch_alloc()
2467 sw->config.route_lo = lower_32_bits(route); in tb_switch_alloc()
2468 sw->config.enabled = 0; in tb_switch_alloc()
2472 ret = -EADDRNOTAVAIL; in tb_switch_alloc()
2477 sw->ports = kcalloc(sw->config.max_port_number + 1, sizeof(*sw->ports), in tb_switch_alloc()
2479 if (!sw->ports) { in tb_switch_alloc()
2480 ret = -ENOMEM; in tb_switch_alloc()
2484 for (i = 0; i <= sw->config.max_port_number; i++) { in tb_switch_alloc()
2486 sw->ports[i].sw = sw; in tb_switch_alloc()
2487 sw->ports[i].port = i; in tb_switch_alloc()
2491 ida_init(&sw->ports[i].in_hopids); in tb_switch_alloc()
2492 ida_init(&sw->ports[i].out_hopids); in tb_switch_alloc()
2498 sw->cap_plug_events = ret; in tb_switch_alloc()
2502 sw->cap_vsec_tmu = ret; in tb_switch_alloc()
2506 sw->cap_lc = ret; in tb_switch_alloc()
2510 sw->cap_lp = ret; in tb_switch_alloc()
2514 sw->authorized = true; in tb_switch_alloc()
2516 device_initialize(&sw->dev); in tb_switch_alloc()
2517 sw->dev.parent = parent; in tb_switch_alloc()
2518 sw->dev.bus = &tb_bus_type; in tb_switch_alloc()
2519 sw->dev.type = &tb_switch_type; in tb_switch_alloc()
2520 sw->dev.groups = switch_groups; in tb_switch_alloc()
2521 dev_set_name(&sw->dev, "%u-%llx", tb->index, tb_route(sw)); in tb_switch_alloc()
2526 kfree(sw->ports); in tb_switch_alloc()
2533 * tb_switch_alloc_safe_mode() - allocate a switch that is in safe mode
2553 return ERR_PTR(-ENOMEM); in tb_switch_alloc_safe_mode()
2555 sw->tb = tb; in tb_switch_alloc_safe_mode()
2556 sw->config.depth = tb_route_length(route); in tb_switch_alloc_safe_mode()
2557 sw->config.route_hi = upper_32_bits(route); in tb_switch_alloc_safe_mode()
2558 sw->config.route_lo = lower_32_bits(route); in tb_switch_alloc_safe_mode()
2559 sw->safe_mode = true; in tb_switch_alloc_safe_mode()
2561 device_initialize(&sw->dev); in tb_switch_alloc_safe_mode()
2562 sw->dev.parent = parent; in tb_switch_alloc_safe_mode()
2563 sw->dev.bus = &tb_bus_type; in tb_switch_alloc_safe_mode()
2564 sw->dev.type = &tb_switch_type; in tb_switch_alloc_safe_mode()
2565 sw->dev.groups = switch_groups; in tb_switch_alloc_safe_mode()
2566 dev_set_name(&sw->dev, "%u-%llx", tb->index, tb_route(sw)); in tb_switch_alloc_safe_mode()
2572 * tb_switch_configure() - Uploads configuration to the switch
2575 * Call this function before the switch is added to the system. It will
2578 * resume from low power states to re-initialize it.
2584 struct tb *tb = sw->tb; in tb_switch_configure()
2591 sw->config.enabled ? "restoring" : "initializing", route, in tb_switch_configure()
2592 tb_route_length(route), sw->config.upstream_port_number); in tb_switch_configure()
2594 sw->config.enabled = 1; in tb_switch_configure()
2604 sw->config.cmuv = ROUTER_CS_4_CMUV_V1; in tb_switch_configure()
2606 sw->config.cmuv = ROUTER_CS_4_CMUV_V2; in tb_switch_configure()
2607 sw->config.plug_events_delay = 0xa; in tb_switch_configure()
2610 ret = tb_sw_write(sw, (u32 *)&sw->config + 1, TB_CFG_SWITCH, in tb_switch_configure()
2617 if (sw->config.vendor_id != PCI_VENDOR_ID_INTEL) in tb_switch_configure()
2619 sw->config.vendor_id); in tb_switch_configure()
2621 if (!sw->cap_plug_events) { in tb_switch_configure()
2623 return -ENODEV; in tb_switch_configure()
2627 ret = tb_sw_write(sw, (u32 *)&sw->config + 1, TB_CFG_SWITCH, in tb_switch_configure()
2637 * tb_switch_configuration_valid() - Set the tunneling configuration to be valid
2658 if (sw->uuid) in tb_switch_set_uuid()
2662 ret = usb4_switch_read_uid(sw, &sw->uid); in tb_switch_set_uuid()
2673 if (ret != -EINVAL) in tb_switch_set_uuid()
2686 uuid[0] = sw->uid & 0xffffffff; in tb_switch_set_uuid()
2687 uuid[1] = (sw->uid >> 32) & 0xffffffff; in tb_switch_set_uuid()
2692 sw->uuid = kmemdup(uuid, sizeof(uuid), GFP_KERNEL); in tb_switch_set_uuid()
2693 if (!sw->uuid) in tb_switch_set_uuid()
2694 return -ENOMEM; in tb_switch_set_uuid()
2703 switch (sw->generation) { in tb_switch_add_dma_port()
2722 if (!sw->safe_mode) in tb_switch_add_dma_port()
2727 if (sw->no_nvm_upgrade) in tb_switch_add_dma_port()
2747 sw->dma_port = dma_port_alloc(sw); in tb_switch_add_dma_port()
2748 if (!sw->dma_port) in tb_switch_add_dma_port()
2767 * it functional again. in tb_switch_add_dma_port()
2769 ret = dma_port_flash_update_auth_status(sw->dma_port, &status); in tb_switch_add_dma_port()
2783 dma_port_power_cycle(sw->dma_port); in tb_switch_add_dma_port()
2789 return -ESHUTDOWN; in tb_switch_add_dma_port()
2796 for (i = 1; i <= sw->config.max_port_number; i++) { in tb_switch_default_link_ports()
2797 struct tb_port *port = &sw->ports[i]; in tb_switch_default_link_ports()
2804 if (i == sw->config.max_port_number || in tb_switch_default_link_ports()
2805 !tb_port_is_null(&sw->ports[i + 1])) in tb_switch_default_link_ports()
2809 subordinate = &sw->ports[i + 1]; in tb_switch_default_link_ports()
2810 if (!port->dual_link_port && !subordinate->dual_link_port) { in tb_switch_default_link_ports()
2811 port->link_nr = 0; in tb_switch_default_link_ports()
2812 port->dual_link_port = subordinate; in tb_switch_default_link_ports()
2813 subordinate->link_nr = 1; in tb_switch_default_link_ports()
2814 subordinate->dual_link_port = port; in tb_switch_default_link_ports()
2816 tb_sw_dbg(sw, "linked ports %d <-> %d\n", in tb_switch_default_link_ports()
2817 port->port, subordinate->port); in tb_switch_default_link_ports()
2826 if (!up->dual_link_port || !up->dual_link_port->remote) in tb_switch_lane_bonding_possible()
2848 if (sw->link_speed != ret) in tb_switch_update_link_attributes()
2850 sw->link_speed = ret; in tb_switch_update_link_attributes()
2855 if (sw->link_width != ret) in tb_switch_update_link_attributes()
2857 sw->link_width = ret; in tb_switch_update_link_attributes()
2860 if (device_is_registered(&sw->dev) && change) in tb_switch_update_link_attributes()
2861 kobject_uevent(&sw->dev.kobj, KOBJ_CHANGE); in tb_switch_update_link_attributes()
2875 tb_sw_dbg(sw, "current link speed %u.0 Gb/s\n", sw->link_speed); in tb_switch_link_init()
2876 tb_sw_dbg(sw, "current link width %s\n", width_name(sw->link_width)); in tb_switch_link_init()
2878 bonded = sw->link_width >= TB_LINK_WIDTH_DUAL; in tb_switch_link_init()
2887 up->bonded = bonded; in tb_switch_link_init()
2888 if (up->dual_link_port) in tb_switch_link_init()
2889 up->dual_link_port->bonded = bonded; in tb_switch_link_init()
2892 down->bonded = bonded; in tb_switch_link_init()
2893 if (down->dual_link_port) in tb_switch_link_init()
2894 down->dual_link_port->bonded = bonded; in tb_switch_link_init()
2899 * tb_switch_lane_bonding_enable() - Enable lane bonding
2926 if (tb_wait_for_port(down->dual_link_port, false) <= 0) in tb_switch_lane_bonding_enable()
2927 return -ENOTCONN; in tb_switch_lane_bonding_enable()
2950 * tb_switch_lane_bonding_disable() - Disable lane bonding
2962 if (!up->bonded) in tb_switch_lane_bonding_disable()
2974 return -EOPNOTSUPP; in tb_switch_lane_bonding_disable()
2987 /* Note updating sw->link_width done in tb_switch_update_link_attributes() */
3017 if (sw->link_width != width) { in tb_switch_asym_enable()
3030 /* Note updating sw->link_width done in tb_switch_update_link_attributes() */
3052 if (sw->link_width > TB_LINK_WIDTH_DUAL) { in tb_switch_asym_disable()
3053 if (sw->link_width == TB_LINK_WIDTH_ASYM_TX) in tb_switch_asym_disable()
3069 * tb_switch_set_link_width() - Configure router link width
3098 if (sw->link_width == TB_LINK_WIDTH_ASYM_TX || in tb_switch_set_link_width()
3099 sw->link_width == TB_LINK_WIDTH_ASYM_RX) { in tb_switch_set_link_width()
3117 case -ETIMEDOUT: in tb_switch_set_link_width()
3121 case -ENOTCONN: in tb_switch_set_link_width()
3122 case -EOPNOTSUPP: in tb_switch_set_link_width()
3123 case -ENODEV: in tb_switch_set_link_width()
3141 * tb_switch_configure_link() - Set link configured
3161 if (tb_switch_is_usb4(up->sw)) in tb_switch_configure_link()
3168 down = up->remote; in tb_switch_configure_link()
3169 if (tb_switch_is_usb4(down->sw)) in tb_switch_configure_link()
3175 * tb_switch_unconfigure_link() - Unconfigure link
3189 * Unconfigure downstream port so that wake-on-connect can be in tb_switch_unconfigure_link()
3194 down = up->remote; in tb_switch_unconfigure_link()
3195 if (tb_switch_is_usb4(down->sw)) in tb_switch_unconfigure_link()
3200 if (sw->is_unplugged) in tb_switch_unconfigure_link()
3204 if (tb_switch_is_usb4(up->sw)) in tb_switch_unconfigure_link()
3230 if (!port->cap_usb4) in tb_switch_port_hotplug_enable()
3241 * tb_switch_add() - Add a switch to the domain
3265 dev_err(&sw->dev, "failed to add DMA port\n"); in tb_switch_add()
3269 if (!sw->safe_mode) { in tb_switch_add()
3275 dev_warn(&sw->dev, "reading DROM failed: %d\n", ret); in tb_switch_add()
3276 tb_sw_dbg(sw, "uid: %#llx\n", sw->uid); in tb_switch_add()
3280 dev_err(&sw->dev, "failed to set UUID\n"); in tb_switch_add()
3284 for (i = 0; i <= sw->config.max_port_number; i++) { in tb_switch_add()
3285 if (sw->ports[i].disabled) { in tb_switch_add()
3286 tb_port_dbg(&sw->ports[i], "disabled by eeprom\n"); in tb_switch_add()
3289 ret = tb_init_port(&sw->ports[i]); in tb_switch_add()
3291 dev_err(&sw->dev, "failed to initialize port %d\n", i); in tb_switch_add()
3319 ret = device_add(&sw->dev); in tb_switch_add()
3321 dev_err(&sw->dev, "failed to add device: %d\n", ret); in tb_switch_add()
3326 dev_info(&sw->dev, "new device found, vendor=%#x device=%#x\n", in tb_switch_add()
3327 sw->vendor, sw->device); in tb_switch_add()
3328 if (sw->vendor_name && sw->device_name) in tb_switch_add()
3329 dev_info(&sw->dev, "%s %s\n", sw->vendor_name, in tb_switch_add()
3330 sw->device_name); in tb_switch_add()
3335 dev_err(&sw->dev, "failed to add USB4 ports\n"); in tb_switch_add()
3341 dev_err(&sw->dev, "failed to add NVM devices\n"); in tb_switch_add()
3350 device_init_wakeup(&sw->dev, true); in tb_switch_add()
3352 pm_runtime_set_active(&sw->dev); in tb_switch_add()
3353 if (sw->rpm) { in tb_switch_add()
3354 pm_runtime_set_autosuspend_delay(&sw->dev, TB_AUTOSUSPEND_DELAY); in tb_switch_add()
3355 pm_runtime_use_autosuspend(&sw->dev); in tb_switch_add()
3356 pm_runtime_mark_last_busy(&sw->dev); in tb_switch_add()
3357 pm_runtime_enable(&sw->dev); in tb_switch_add()
3358 pm_request_autosuspend(&sw->dev); in tb_switch_add()
3367 device_del(&sw->dev); in tb_switch_add()
3373 * tb_switch_remove() - Remove and release a switch
3386 if (sw->rpm) { in tb_switch_remove()
3387 pm_runtime_get_sync(&sw->dev); in tb_switch_remove()
3388 pm_runtime_disable(&sw->dev); in tb_switch_remove()
3394 tb_switch_remove(port->remote->sw); in tb_switch_remove()
3395 port->remote = NULL; in tb_switch_remove()
3396 } else if (port->xdomain) { in tb_switch_remove()
3397 port->xdomain->is_unplugged = true; in tb_switch_remove()
3398 tb_xdomain_remove(port->xdomain); in tb_switch_remove()
3399 port->xdomain = NULL; in tb_switch_remove()
3406 if (!sw->is_unplugged) in tb_switch_remove()
3413 dev_info(&sw->dev, "device disconnected\n"); in tb_switch_remove()
3414 device_unregister(&sw->dev); in tb_switch_remove()
3418 * tb_sw_set_unplugged() - set is_unplugged on switch and downstream switches
3425 if (sw == sw->tb->root_switch) { in tb_sw_set_unplugged()
3429 if (sw->is_unplugged) { in tb_sw_set_unplugged()
3433 sw->is_unplugged = true; in tb_sw_set_unplugged()
3436 tb_sw_set_unplugged(port->remote->sw); in tb_sw_set_unplugged()
3437 else if (port->xdomain) in tb_sw_set_unplugged()
3438 port->xdomain->is_unplugged = true; in tb_sw_set_unplugged()
3456 if (device_may_wakeup(&sw->dev)) { in tb_switch_check_wakes()
3463 * tb_switch_resume() - Resume a switch after sleep
3465 * @runtime: Is this resume from runtime suspend or system sleep
3467 * Resumes and re-enumerates router (and all its children), if still plugged
3469 * suspend. If this is resume from system sleep, notifies PM core about the
3492 err = tb_cfg_get_upstream_port(sw->tb->ctl, tb_route(sw)); in tb_switch_resume()
3499 if (!sw->uid) in tb_switch_resume()
3500 return -ENODEV; in tb_switch_resume()
3510 if (sw->uid != uid) { in tb_switch_resume()
3512 "changed while suspended (uid %#llx -> %#llx)\n", in tb_switch_resume()
3513 sw->uid, uid); in tb_switch_resume()
3514 return -ENODEV; in tb_switch_resume()
3544 tb_sw_set_unplugged(port->remote->sw); in tb_switch_resume()
3545 else if (port->xdomain) in tb_switch_resume()
3546 port->xdomain->is_unplugged = true; in tb_switch_resume()
3554 if (port->remote && in tb_switch_resume()
3555 tb_switch_resume(port->remote->sw, runtime)) { in tb_switch_resume()
3558 tb_sw_set_unplugged(port->remote->sw); in tb_switch_resume()
3566 * tb_switch_suspend() - Put a switch to sleep
3568 * @runtime: Is this runtime suspend or system sleep
3585 * done for USB4 device too as CLx is re-enabled at resume. in tb_switch_suspend()
3595 tb_switch_suspend(port->remote->sw, runtime); in tb_switch_suspend()
3603 } else if (device_may_wakeup(&sw->dev)) { in tb_switch_suspend()
3616 * tb_switch_query_dp_resource() - Query availability of DP resource
3631 * tb_switch_alloc_dp_resource() - Allocate available DP resource
3650 in->port); in tb_switch_alloc_dp_resource()
3652 tb_sw_dbg(sw, "allocated DP resource for port %d\n", in->port); in tb_switch_alloc_dp_resource()
3658 * tb_switch_dealloc_dp_resource() - De-allocate DP resource
3659 * @sw: Switch whose DP resource is de-allocated
3662 * De-allocates DP resource that was previously allocated for DP
3675 tb_sw_warn(sw, "failed to de-allocate DP resource for port %d\n", in tb_switch_dealloc_dp_resource()
3676 in->port); in tb_switch_dealloc_dp_resource()
3678 tb_sw_dbg(sw, "released DP resource for port %d\n", in->port); in tb_switch_dealloc_dp_resource()
3696 if (sw->tb != lookup->tb) in tb_switch_match()
3699 if (lookup->uuid) in tb_switch_match()
3700 return !memcmp(sw->uuid, lookup->uuid, sizeof(*lookup->uuid)); in tb_switch_match()
3702 if (lookup->route) { in tb_switch_match()
3703 return sw->config.route_lo == lower_32_bits(lookup->route) && in tb_switch_match()
3704 sw->config.route_hi == upper_32_bits(lookup->route); in tb_switch_match()
3708 if (!lookup->depth) in tb_switch_match()
3709 return !sw->depth; in tb_switch_match()
3711 return sw->link == lookup->link && sw->depth == lookup->depth; in tb_switch_match()
3715 * tb_switch_find_by_link_depth() - Find switch by link and depth
3741 * tb_switch_find_by_uuid() - Find switch by UUID
3765 * tb_switch_find_by_route() - Find switch by route string
3778 return tb_switch_get(tb->root_switch); in tb_switch_find_by_route()
3792 * tb_switch_find_port() - return the first port of @type on @sw or NULL
3802 if (port->config.type == type) in tb_switch_find_port()
3819 if (sw->generation != 3) in tb_switch_pcie_bridge_write()
3820 return -EOPNOTSUPP; in tb_switch_pcie_bridge_write()
3822 offset = sw->cap_plug_events + TB_PLUG_EVENTS_PCIE_WR_DATA; in tb_switch_pcie_bridge_write()
3834 offset = sw->cap_plug_events + TB_PLUG_EVENTS_PCIE_CMD; in tb_switch_pcie_bridge_write()
3850 return -ETIMEDOUT; in tb_switch_pcie_bridge_write()
3856 * tb_switch_pcie_l1_enable() - Enable PCIe link to enter L1 state
3889 * tb_switch_xhci_connect() - Connect internal xHCI
3892 * Can be called to any router. For Alpine Ridge and Titan Ridge
3893 * performs special flows that bring the xHCI functional for any device
3894 * connected to the type-C port. Call only after PCIe tunnel has been
3903 if (sw->generation != 3) in tb_switch_xhci_connect()
3906 port1 = &sw->ports[1]; in tb_switch_xhci_connect()
3907 port3 = &sw->ports[3]; in tb_switch_xhci_connect()
3936 * tb_switch_xhci_disconnect() - Disconnect internal xHCI
3944 if (sw->generation == 3) { in tb_switch_xhci_disconnect()
3945 struct tb_port *port1 = &sw->ports[1]; in tb_switch_xhci_disconnect()
3946 struct tb_port *port3 = &sw->ports[3]; in tb_switch_xhci_disconnect()