Lines Matching +full:activate +full:- +full:to +full:- +full:activate
1 // SPDX-License-Identifier: GPL-2.0
3 * Thunderbolt driver - Tunneling support
45 level(__tunnel->tb, "%llx:%x <-> %llx:%x (%s): " fmt, \
46 tb_route(__tunnel->src_port->sw), \
47 __tunnel->src_port->port, \
48 tb_route(__tunnel->dst_port->sw), \
49 __tunnel->dst_port->port, \
50 tb_tunnel_names[__tunnel->type], \
72 tunnel->paths = kcalloc(npaths, sizeof(tunnel->paths[0]), GFP_KERNEL); in tb_tunnel_alloc()
73 if (!tunnel->paths) { in tb_tunnel_alloc()
78 INIT_LIST_HEAD(&tunnel->list); in tb_tunnel_alloc()
79 tunnel->tb = tb; in tb_tunnel_alloc()
80 tunnel->npaths = npaths; in tb_tunnel_alloc()
81 tunnel->type = type; in tb_tunnel_alloc()
86 static int tb_pci_activate(struct tb_tunnel *tunnel, bool activate) in tb_pci_activate() argument
90 res = tb_pci_port_enable(tunnel->src_port, activate); in tb_pci_activate()
94 if (tb_port_is_pcie_up(tunnel->dst_port)) in tb_pci_activate()
95 return tb_pci_port_enable(tunnel->dst_port, activate); in tb_pci_activate()
105 switch (sw->link_speed * sw->link_width) { in tb_initial_credits()
118 path->egress_fc_enable = TB_PATH_SOURCE | TB_PATH_INTERNAL; in tb_pci_init_path()
119 path->egress_shared_buffer = TB_PATH_NONE; in tb_pci_init_path()
120 path->ingress_fc_enable = TB_PATH_ALL; in tb_pci_init_path()
121 path->ingress_shared_buffer = TB_PATH_NONE; in tb_pci_init_path()
122 path->priority = 3; in tb_pci_init_path()
123 path->weight = 1; in tb_pci_init_path()
124 path->drop_packages = 0; in tb_pci_init_path()
125 path->nfc_credits = 0; in tb_pci_init_path()
126 path->hops[0].initial_credits = 7; in tb_pci_init_path()
127 if (path->path_length > 1) in tb_pci_init_path()
128 path->hops[1].initial_credits = in tb_pci_init_path()
129 tb_initial_credits(path->hops[1].in_port->sw); in tb_pci_init_path()
133 * tb_tunnel_discover_pci() - Discover existing PCIe tunnels
134 * @tb: Pointer to the domain structure
137 * If @down adapter is active, follows the tunnel to the PCIe upstream
153 tunnel->activate = tb_pci_activate; in tb_tunnel_discover_pci()
154 tunnel->src_port = down; in tb_tunnel_discover_pci()
161 path = tb_path_discover(down, TB_PCI_HOPID, NULL, -1, in tb_tunnel_discover_pci()
162 &tunnel->dst_port, "PCIe Up"); in tb_tunnel_discover_pci()
168 tunnel->paths[TB_PCI_PATH_UP] = path; in tb_tunnel_discover_pci()
169 tb_pci_init_path(tunnel->paths[TB_PCI_PATH_UP]); in tb_tunnel_discover_pci()
171 path = tb_path_discover(tunnel->dst_port, -1, down, TB_PCI_HOPID, NULL, in tb_tunnel_discover_pci()
175 tunnel->paths[TB_PCI_PATH_DOWN] = path; in tb_tunnel_discover_pci()
176 tb_pci_init_path(tunnel->paths[TB_PCI_PATH_DOWN]); in tb_tunnel_discover_pci()
179 if (!tb_port_is_pcie_up(tunnel->dst_port)) { in tb_tunnel_discover_pci()
180 tb_port_warn(tunnel->dst_port, in tb_tunnel_discover_pci()
185 if (down != tunnel->src_port) { in tb_tunnel_discover_pci()
190 if (!tb_pci_port_is_enabled(tunnel->dst_port)) { in tb_tunnel_discover_pci()
208 * tb_tunnel_alloc_pci() - allocate a pci tunnel
209 * @tb: Pointer to the domain structure
228 tunnel->activate = tb_pci_activate; in tb_tunnel_alloc_pci()
229 tunnel->src_port = down; in tb_tunnel_alloc_pci()
230 tunnel->dst_port = up; in tb_tunnel_alloc_pci()
239 tunnel->paths[TB_PCI_PATH_DOWN] = path; in tb_tunnel_alloc_pci()
248 tunnel->paths[TB_PCI_PATH_UP] = path; in tb_tunnel_alloc_pci()
265 /* Both ends need to support this */ in tb_dp_cm_handshake()
266 if (!tb_dp_is_usb4(in->sw) || !tb_dp_is_usb4(out->sw)) in tb_dp_cm_handshake()
270 out->cap_adap + DP_STATUS_CTRL, 1); in tb_dp_cm_handshake()
277 out->cap_adap + DP_STATUS_CTRL, 1); in tb_dp_cm_handshake()
283 out->cap_adap + DP_STATUS_CTRL, 1); in tb_dp_cm_handshake()
289 } while (timeout--); in tb_dp_cm_handshake()
291 return -ETIMEDOUT; in tb_dp_cm_handshake()
317 WARN(1, "invalid rate %u passed, defaulting to 1620 MB/s\n", rate); in tb_dp_cap_set_rate()
356 WARN(1, "invalid number of lanes %u passed, defaulting to 1\n", in tb_dp_cap_set_lanes()
418 return -ENOSR; in tb_dp_reduce_bandwidth()
424 struct tb_port *out = tunnel->dst_port; in tb_dp_xchg_caps()
425 struct tb_port *in = tunnel->src_port; in tb_dp_xchg_caps()
429 * Copy DP_LOCAL_CAP register to DP_REMOTE_CAP register for in tb_dp_xchg_caps()
432 if (in->sw->generation < 2 || out->sw->generation < 2) in tb_dp_xchg_caps()
445 in->cap_adap + DP_LOCAL_CAP, 1); in tb_dp_xchg_caps()
450 out->cap_adap + DP_LOCAL_CAP, 1); in tb_dp_xchg_caps()
454 /* Write IN local caps to OUT remote caps */ in tb_dp_xchg_caps()
456 out->cap_adap + DP_REMOTE_CAP, 1); in tb_dp_xchg_caps()
467 * if we need to reduce bandwidth to fit there. in tb_dp_xchg_caps()
475 if (in->sw->config.depth < out->sw->config.depth) in tb_dp_xchg_caps()
476 max_bw = tunnel->max_down; in tb_dp_xchg_caps()
478 max_bw = tunnel->max_up; in tb_dp_xchg_caps()
492 tb_port_dbg(out, "bandwidth reduced to %u Mb/s x%u = %u Mb/s\n", in tb_dp_xchg_caps()
496 * Set new rate and number of lanes before writing it to in tb_dp_xchg_caps()
504 in->cap_adap + DP_REMOTE_CAP, 1); in tb_dp_xchg_caps()
515 paths = tunnel->paths; in tb_dp_activate()
516 last = paths[TB_DP_VIDEO_PATH_OUT]->path_length - 1; in tb_dp_activate()
518 tb_dp_port_set_hops(tunnel->src_port, in tb_dp_activate()
519 paths[TB_DP_VIDEO_PATH_OUT]->hops[0].in_hop_index, in tb_dp_activate()
520 paths[TB_DP_AUX_PATH_OUT]->hops[0].in_hop_index, in tb_dp_activate()
521 paths[TB_DP_AUX_PATH_IN]->hops[last].next_hop_index); in tb_dp_activate()
523 tb_dp_port_set_hops(tunnel->dst_port, in tb_dp_activate()
524 paths[TB_DP_VIDEO_PATH_OUT]->hops[last].next_hop_index, in tb_dp_activate()
525 paths[TB_DP_AUX_PATH_IN]->hops[0].in_hop_index, in tb_dp_activate()
526 paths[TB_DP_AUX_PATH_OUT]->hops[last].next_hop_index); in tb_dp_activate()
528 tb_dp_port_hpd_clear(tunnel->src_port); in tb_dp_activate()
529 tb_dp_port_set_hops(tunnel->src_port, 0, 0, 0); in tb_dp_activate()
530 if (tb_port_is_dpout(tunnel->dst_port)) in tb_dp_activate()
531 tb_dp_port_set_hops(tunnel->dst_port, 0, 0, 0); in tb_dp_activate()
534 ret = tb_dp_port_enable(tunnel->src_port, active); in tb_dp_activate()
538 if (tb_port_is_dpout(tunnel->dst_port)) in tb_dp_activate()
539 return tb_dp_port_enable(tunnel->dst_port, active); in tb_dp_activate()
547 struct tb_port *in = tunnel->src_port; in tb_dp_consumed_bandwidth()
548 const struct tb_switch *sw = in->sw; in tb_dp_consumed_bandwidth()
561 in->cap_adap + DP_COMMON_CAP, 1); in tb_dp_consumed_bandwidth()
571 } while (timeout--); in tb_dp_consumed_bandwidth()
574 return -ETIMEDOUT; in tb_dp_consumed_bandwidth()
575 } else if (sw->generation >= 2) { in tb_dp_consumed_bandwidth()
581 in->cap_adap + DP_REMOTE_CAP, 1); in tb_dp_consumed_bandwidth()
594 if (in->sw->config.depth < tunnel->dst_port->sw->config.depth) { in tb_dp_consumed_bandwidth()
609 path->egress_fc_enable = TB_PATH_SOURCE | TB_PATH_INTERNAL; in tb_dp_init_aux_path()
610 path->egress_shared_buffer = TB_PATH_NONE; in tb_dp_init_aux_path()
611 path->ingress_fc_enable = TB_PATH_ALL; in tb_dp_init_aux_path()
612 path->ingress_shared_buffer = TB_PATH_NONE; in tb_dp_init_aux_path()
613 path->priority = 2; in tb_dp_init_aux_path()
614 path->weight = 1; in tb_dp_init_aux_path()
616 for (i = 0; i < path->path_length; i++) in tb_dp_init_aux_path()
617 path->hops[i].initial_credits = 1; in tb_dp_init_aux_path()
622 u32 nfc_credits = path->hops[0].in_port->config.nfc_credits; in tb_dp_init_video_path()
624 path->egress_fc_enable = TB_PATH_NONE; in tb_dp_init_video_path()
625 path->egress_shared_buffer = TB_PATH_NONE; in tb_dp_init_video_path()
626 path->ingress_fc_enable = TB_PATH_NONE; in tb_dp_init_video_path()
627 path->ingress_shared_buffer = TB_PATH_NONE; in tb_dp_init_video_path()
628 path->priority = 1; in tb_dp_init_video_path()
629 path->weight = 1; in tb_dp_init_video_path()
632 path->nfc_credits = nfc_credits & ADP_CS_4_NFC_BUFFERS_MASK; in tb_dp_init_video_path()
639 path->nfc_credits = min(max_credits - 2, 12U); in tb_dp_init_video_path()
644 * tb_tunnel_discover_dp() - Discover existing Display Port tunnels
645 * @tb: Pointer to the domain structure
648 * If @in adapter is active, follows the tunnel to the DP out adapter
667 tunnel->init = tb_dp_xchg_caps; in tb_tunnel_discover_dp()
668 tunnel->activate = tb_dp_activate; in tb_tunnel_discover_dp()
669 tunnel->consumed_bandwidth = tb_dp_consumed_bandwidth; in tb_tunnel_discover_dp()
670 tunnel->src_port = in; in tb_tunnel_discover_dp()
672 path = tb_path_discover(in, TB_DP_VIDEO_HOPID, NULL, -1, in tb_tunnel_discover_dp()
673 &tunnel->dst_port, "Video"); in tb_tunnel_discover_dp()
679 tunnel->paths[TB_DP_VIDEO_PATH_OUT] = path; in tb_tunnel_discover_dp()
680 tb_dp_init_video_path(tunnel->paths[TB_DP_VIDEO_PATH_OUT], true); in tb_tunnel_discover_dp()
682 path = tb_path_discover(in, TB_DP_AUX_TX_HOPID, NULL, -1, NULL, "AUX TX"); in tb_tunnel_discover_dp()
685 tunnel->paths[TB_DP_AUX_PATH_OUT] = path; in tb_tunnel_discover_dp()
686 tb_dp_init_aux_path(tunnel->paths[TB_DP_AUX_PATH_OUT]); in tb_tunnel_discover_dp()
688 path = tb_path_discover(tunnel->dst_port, -1, in, TB_DP_AUX_RX_HOPID, in tb_tunnel_discover_dp()
692 tunnel->paths[TB_DP_AUX_PATH_IN] = path; in tb_tunnel_discover_dp()
693 tb_dp_init_aux_path(tunnel->paths[TB_DP_AUX_PATH_IN]); in tb_tunnel_discover_dp()
696 if (!tb_port_is_dpout(tunnel->dst_port)) { in tb_tunnel_discover_dp()
701 if (!tb_dp_port_is_enabled(tunnel->dst_port)) in tb_tunnel_discover_dp()
704 if (!tb_dp_port_hpd_is_active(tunnel->dst_port)) in tb_tunnel_discover_dp()
707 if (port != tunnel->src_port) { in tb_tunnel_discover_dp()
724 * tb_tunnel_alloc_dp() - allocate a Display Port tunnel
725 * @tb: Pointer to the domain structure
746 if (WARN_ON(!in->cap_adap || !out->cap_adap)) in tb_tunnel_alloc_dp()
753 tunnel->init = tb_dp_xchg_caps; in tb_tunnel_alloc_dp()
754 tunnel->activate = tb_dp_activate; in tb_tunnel_alloc_dp()
755 tunnel->consumed_bandwidth = tb_dp_consumed_bandwidth; in tb_tunnel_alloc_dp()
756 tunnel->src_port = in; in tb_tunnel_alloc_dp()
757 tunnel->dst_port = out; in tb_tunnel_alloc_dp()
758 tunnel->max_up = max_up; in tb_tunnel_alloc_dp()
759 tunnel->max_down = max_down; in tb_tunnel_alloc_dp()
761 paths = tunnel->paths; in tb_tunnel_alloc_dp()
795 max_credits = (nhi->config.nfc_credits & ADP_CS_4_TOTAL_BUFFERS_MASK) >> in tb_dma_credits()
802 struct tb_port *nhi = tunnel->src_port; in tb_dma_activate()
814 path->egress_fc_enable = efc; in tb_dma_init_path()
815 path->ingress_fc_enable = TB_PATH_ALL; in tb_dma_init_path()
816 path->egress_shared_buffer = TB_PATH_NONE; in tb_dma_init_path()
817 path->ingress_shared_buffer = isb; in tb_dma_init_path()
818 path->priority = 5; in tb_dma_init_path()
819 path->weight = 1; in tb_dma_init_path()
820 path->clear_fc = true; in tb_dma_init_path()
822 for (i = 0; i < path->path_length; i++) in tb_dma_init_path()
823 path->hops[i].initial_credits = credits; in tb_dma_init_path()
827 * tb_tunnel_alloc_dma() - allocate a DMA tunnel
828 * @tb: Pointer to the domain structure
830 * @dst: Destination null port which the other domain is connected to
831 * @transmit_ring: NHI ring number used to send packets towards the
834 * @receive_ring: NHI ring number used to receive packets from the
853 tunnel->activate = tb_dma_activate; in tb_tunnel_alloc_dma()
854 tunnel->src_port = nhi; in tb_tunnel_alloc_dma()
855 tunnel->dst_port = dst; in tb_tunnel_alloc_dma()
866 tunnel->paths[TB_DMA_PATH_IN] = path; in tb_tunnel_alloc_dma()
874 tunnel->paths[TB_DMA_PATH_OUT] = path; in tb_tunnel_alloc_dma()
899 tunnel->allocated_up, tunnel->allocated_down); in tb_usb3_init()
901 return usb4_usb3_port_allocate_bandwidth(tunnel->src_port, in tb_usb3_init()
902 &tunnel->allocated_up, in tb_usb3_init()
903 &tunnel->allocated_down); in tb_usb3_init()
906 static int tb_usb3_activate(struct tb_tunnel *tunnel, bool activate) in tb_usb3_activate() argument
910 res = tb_usb3_port_enable(tunnel->src_port, activate); in tb_usb3_activate()
914 if (tb_port_is_usb3_up(tunnel->dst_port)) in tb_usb3_activate()
915 return tb_usb3_port_enable(tunnel->dst_port, activate); in tb_usb3_activate()
927 *consumed_up = tunnel->allocated_up * (3 + 1) / 3; in tb_usb3_consumed_bandwidth()
928 *consumed_down = tunnel->allocated_down * (3 + 1) / 3; in tb_usb3_consumed_bandwidth()
936 ret = usb4_usb3_port_release_bandwidth(tunnel->src_port, in tb_usb3_release_unused_bandwidth()
937 &tunnel->allocated_up, in tb_usb3_release_unused_bandwidth()
938 &tunnel->allocated_down); in tb_usb3_release_unused_bandwidth()
942 tb_tunnel_dbg(tunnel, "decreased bandwidth allocation to %d/%d Mb/s\n", in tb_usb3_release_unused_bandwidth()
943 tunnel->allocated_up, tunnel->allocated_down); in tb_usb3_release_unused_bandwidth()
953 ret = usb4_usb3_port_actual_link_rate(tunnel->src_port); in tb_usb3_reclaim_available_bandwidth()
955 tb_tunnel_warn(tunnel, "failed to read actual link rate\n"); in tb_usb3_reclaim_available_bandwidth()
959 ret = usb4_usb3_port_max_link_rate(tunnel->src_port); in tb_usb3_reclaim_available_bandwidth()
961 tb_tunnel_warn(tunnel, "failed to read maximum link rate\n"); in tb_usb3_reclaim_available_bandwidth()
972 /* No need to reclaim if already at maximum */ in tb_usb3_reclaim_available_bandwidth()
973 if (tunnel->allocated_up >= max_rate && in tb_usb3_reclaim_available_bandwidth()
974 tunnel->allocated_down >= max_rate) in tb_usb3_reclaim_available_bandwidth()
979 if (allocate_up < tunnel->allocated_up) in tb_usb3_reclaim_available_bandwidth()
980 allocate_up = tunnel->allocated_up; in tb_usb3_reclaim_available_bandwidth()
983 if (allocate_down < tunnel->allocated_down) in tb_usb3_reclaim_available_bandwidth()
984 allocate_down = tunnel->allocated_down; in tb_usb3_reclaim_available_bandwidth()
986 /* If no changes no need to do more */ in tb_usb3_reclaim_available_bandwidth()
987 if (allocate_up == tunnel->allocated_up && in tb_usb3_reclaim_available_bandwidth()
988 allocate_down == tunnel->allocated_down) in tb_usb3_reclaim_available_bandwidth()
991 ret = usb4_usb3_port_allocate_bandwidth(tunnel->src_port, &allocate_up, in tb_usb3_reclaim_available_bandwidth()
994 tb_tunnel_info(tunnel, "failed to allocate bandwidth\n"); in tb_usb3_reclaim_available_bandwidth()
998 tunnel->allocated_up = allocate_up; in tb_usb3_reclaim_available_bandwidth()
999 *available_up -= tunnel->allocated_up; in tb_usb3_reclaim_available_bandwidth()
1001 tunnel->allocated_down = allocate_down; in tb_usb3_reclaim_available_bandwidth()
1002 *available_down -= tunnel->allocated_down; in tb_usb3_reclaim_available_bandwidth()
1004 tb_tunnel_dbg(tunnel, "increased bandwidth allocation to %d/%d Mb/s\n", in tb_usb3_reclaim_available_bandwidth()
1005 tunnel->allocated_up, tunnel->allocated_down); in tb_usb3_reclaim_available_bandwidth()
1010 path->egress_fc_enable = TB_PATH_SOURCE | TB_PATH_INTERNAL; in tb_usb3_init_path()
1011 path->egress_shared_buffer = TB_PATH_NONE; in tb_usb3_init_path()
1012 path->ingress_fc_enable = TB_PATH_ALL; in tb_usb3_init_path()
1013 path->ingress_shared_buffer = TB_PATH_NONE; in tb_usb3_init_path()
1014 path->priority = 3; in tb_usb3_init_path()
1015 path->weight = 3; in tb_usb3_init_path()
1016 path->drop_packages = 0; in tb_usb3_init_path()
1017 path->nfc_credits = 0; in tb_usb3_init_path()
1018 path->hops[0].initial_credits = 7; in tb_usb3_init_path()
1019 if (path->path_length > 1) in tb_usb3_init_path()
1020 path->hops[1].initial_credits = in tb_usb3_init_path()
1021 tb_initial_credits(path->hops[1].in_port->sw); in tb_usb3_init_path()
1025 * tb_tunnel_discover_usb3() - Discover existing USB3 tunnels
1026 * @tb: Pointer to the domain structure
1029 * If @down adapter is active, follows the tunnel to the USB3 upstream
1045 tunnel->activate = tb_usb3_activate; in tb_tunnel_discover_usb3()
1046 tunnel->src_port = down; in tb_tunnel_discover_usb3()
1053 path = tb_path_discover(down, TB_USB3_HOPID, NULL, -1, in tb_tunnel_discover_usb3()
1054 &tunnel->dst_port, "USB3 Down"); in tb_tunnel_discover_usb3()
1060 tunnel->paths[TB_USB3_PATH_DOWN] = path; in tb_tunnel_discover_usb3()
1061 tb_usb3_init_path(tunnel->paths[TB_USB3_PATH_DOWN]); in tb_tunnel_discover_usb3()
1063 path = tb_path_discover(tunnel->dst_port, -1, down, TB_USB3_HOPID, NULL, in tb_tunnel_discover_usb3()
1067 tunnel->paths[TB_USB3_PATH_UP] = path; in tb_tunnel_discover_usb3()
1068 tb_usb3_init_path(tunnel->paths[TB_USB3_PATH_UP]); in tb_tunnel_discover_usb3()
1071 if (!tb_port_is_usb3_up(tunnel->dst_port)) { in tb_tunnel_discover_usb3()
1072 tb_port_warn(tunnel->dst_port, in tb_tunnel_discover_usb3()
1077 if (down != tunnel->src_port) { in tb_tunnel_discover_usb3()
1082 if (!tb_usb3_port_is_enabled(tunnel->dst_port)) { in tb_tunnel_discover_usb3()
1088 if (!tb_route(down->sw)) { in tb_tunnel_discover_usb3()
1096 &tunnel->allocated_up, &tunnel->allocated_down); in tb_tunnel_discover_usb3()
1101 tunnel->allocated_up, tunnel->allocated_down); in tb_tunnel_discover_usb3()
1103 tunnel->init = tb_usb3_init; in tb_tunnel_discover_usb3()
1104 tunnel->consumed_bandwidth = tb_usb3_consumed_bandwidth; in tb_tunnel_discover_usb3()
1105 tunnel->release_unused_bandwidth = in tb_tunnel_discover_usb3()
1107 tunnel->reclaim_available_bandwidth = in tb_tunnel_discover_usb3()
1123 * tb_tunnel_alloc_usb3() - allocate a USB3 tunnel
1124 * @tb: Pointer to the domain structure
1169 tunnel->activate = tb_usb3_activate; in tb_tunnel_alloc_usb3()
1170 tunnel->src_port = down; in tb_tunnel_alloc_usb3()
1171 tunnel->dst_port = up; in tb_tunnel_alloc_usb3()
1172 tunnel->max_up = max_up; in tb_tunnel_alloc_usb3()
1173 tunnel->max_down = max_down; in tb_tunnel_alloc_usb3()
1182 tunnel->paths[TB_USB3_PATH_DOWN] = path; in tb_tunnel_alloc_usb3()
1191 tunnel->paths[TB_USB3_PATH_UP] = path; in tb_tunnel_alloc_usb3()
1193 if (!tb_route(down->sw)) { in tb_tunnel_alloc_usb3()
1194 tunnel->allocated_up = max_rate; in tb_tunnel_alloc_usb3()
1195 tunnel->allocated_down = max_rate; in tb_tunnel_alloc_usb3()
1197 tunnel->init = tb_usb3_init; in tb_tunnel_alloc_usb3()
1198 tunnel->consumed_bandwidth = tb_usb3_consumed_bandwidth; in tb_tunnel_alloc_usb3()
1199 tunnel->release_unused_bandwidth = in tb_tunnel_alloc_usb3()
1201 tunnel->reclaim_available_bandwidth = in tb_tunnel_alloc_usb3()
1209 * tb_tunnel_free() - free a tunnel
1210 * @tunnel: Tunnel to be freed
1212 * Frees a tunnel. The tunnel does not need to be deactivated.
1221 for (i = 0; i < tunnel->npaths; i++) { in tb_tunnel_free()
1222 if (tunnel->paths[i]) in tb_tunnel_free()
1223 tb_path_free(tunnel->paths[i]); in tb_tunnel_free()
1226 kfree(tunnel->paths); in tb_tunnel_free()
1231 * tb_tunnel_is_invalid - check whether an activated path is still valid
1232 * @tunnel: Tunnel to check
1238 for (i = 0; i < tunnel->npaths; i++) { in tb_tunnel_is_invalid()
1239 WARN_ON(!tunnel->paths[i]->activated); in tb_tunnel_is_invalid()
1240 if (tb_path_is_invalid(tunnel->paths[i])) in tb_tunnel_is_invalid()
1248 * tb_tunnel_restart() - activate a tunnel after a hardware reset
1249 * @tunnel: Tunnel to restart
1263 for (i = 0; i < tunnel->npaths; i++) { in tb_tunnel_restart()
1264 if (tunnel->paths[i]->activated) { in tb_tunnel_restart()
1265 tb_path_deactivate(tunnel->paths[i]); in tb_tunnel_restart()
1266 tunnel->paths[i]->activated = false; in tb_tunnel_restart()
1270 if (tunnel->init) { in tb_tunnel_restart()
1271 res = tunnel->init(tunnel); in tb_tunnel_restart()
1276 for (i = 0; i < tunnel->npaths; i++) { in tb_tunnel_restart()
1277 res = tb_path_activate(tunnel->paths[i]); in tb_tunnel_restart()
1282 if (tunnel->activate) { in tb_tunnel_restart()
1283 res = tunnel->activate(tunnel, true); in tb_tunnel_restart()
1297 * tb_tunnel_activate() - activate a tunnel
1298 * @tunnel: Tunnel to activate
1306 for (i = 0; i < tunnel->npaths; i++) { in tb_tunnel_activate()
1307 if (tunnel->paths[i]->activated) { in tb_tunnel_activate()
1309 "trying to activate an already activated tunnel\n"); in tb_tunnel_activate()
1310 return -EINVAL; in tb_tunnel_activate()
1318 * tb_tunnel_deactivate() - deactivate a tunnel
1319 * @tunnel: Tunnel to deactivate
1327 if (tunnel->activate) in tb_tunnel_deactivate()
1328 tunnel->activate(tunnel, false); in tb_tunnel_deactivate()
1330 for (i = 0; i < tunnel->npaths; i++) { in tb_tunnel_deactivate()
1331 if (tunnel->paths[i] && tunnel->paths[i]->activated) in tb_tunnel_deactivate()
1332 tb_path_deactivate(tunnel->paths[i]); in tb_tunnel_deactivate()
1337 * tb_tunnel_port_on_path() - Does the tunnel go through port
1338 * @tunnel: Tunnel to check
1339 * @port: Port to check
1349 for (i = 0; i < tunnel->npaths; i++) { in tb_tunnel_port_on_path()
1350 if (!tunnel->paths[i]) in tb_tunnel_port_on_path()
1353 if (tb_path_port_on_path(tunnel->paths[i], port)) in tb_tunnel_port_on_path()
1364 for (i = 0; i < tunnel->npaths; i++) { in tb_tunnel_is_active()
1365 if (!tunnel->paths[i]) in tb_tunnel_is_active()
1367 if (!tunnel->paths[i]->activated) in tb_tunnel_is_active()
1375 * tb_tunnel_consumed_bandwidth() - Return bandwidth consumed by the tunnel
1376 * @tunnel: Tunnel to check
1377 * @consumed_up: Consumed bandwidth in Mb/s from @dst_port to @src_port.
1379 * @consumed_down: Consumed bandwidth in Mb/s from @src_port to @dst_port.
1394 if (tunnel->consumed_bandwidth) { in tb_tunnel_consumed_bandwidth()
1397 ret = tunnel->consumed_bandwidth(tunnel, &up_bw, &down_bw); in tb_tunnel_consumed_bandwidth()
1415 * tb_tunnel_release_unused_bandwidth() - Release unused bandwidth
1416 * @tunnel: Tunnel whose unused bandwidth to release
1419 * moment) this function makes it to release all the unused bandwidth.
1428 if (tunnel->release_unused_bandwidth) { in tb_tunnel_release_unused_bandwidth()
1431 ret = tunnel->release_unused_bandwidth(tunnel); in tb_tunnel_release_unused_bandwidth()
1440 * tb_tunnel_reclaim_available_bandwidth() - Reclaim available bandwidth
1446 * the variables accordingly (e.g decreases both according to what was
1457 if (tunnel->reclaim_available_bandwidth) in tb_tunnel_reclaim_available_bandwidth()
1458 tunnel->reclaim_available_bandwidth(tunnel, available_up, in tb_tunnel_reclaim_available_bandwidth()