diff options
Diffstat (limited to 'drivers/thunderbolt/path.c')
| -rw-r--r-- | drivers/thunderbolt/path.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/thunderbolt/path.c b/drivers/thunderbolt/path.c index 03e7b714deab..ca7d738d66de 100644 --- a/drivers/thunderbolt/path.c +++ b/drivers/thunderbolt/path.c @@ -406,10 +406,17 @@ static int __tb_path_deactivate_hop(struct tb_port *port, int hop_index, if (!hop.pending) { if (clear_fc) { - /* Clear flow control */ - hop.ingress_fc = 0; + /* + * Clear flow control. Protocol adapters + * IFC and ISE bits are vendor defined + * in the USB4 spec so we clear them + * only for pre-USB4 adapters. + */ + if (!tb_switch_is_usb4(port->sw)) { + hop.ingress_fc = 0; + hop.ingress_shared_buffer = 0; + } hop.egress_fc = 0; - hop.ingress_shared_buffer = 0; hop.egress_shared_buffer = 0; return tb_port_write(port, &hop, TB_CFG_HOPS, @@ -447,7 +454,7 @@ void tb_path_deactivate(struct tb_path *path) return; } tb_dbg(path->tb, - "deactivating %s path from %llx:%x to %llx:%x\n", + "deactivating %s path from %llx:%u to %llx:%u\n", path->name, tb_route(path->hops[0].in_port->sw), path->hops[0].in_port->port, tb_route(path->hops[path->path_length - 1].out_port->sw), @@ -475,7 +482,7 @@ int tb_path_activate(struct tb_path *path) } tb_dbg(path->tb, - "activating %s path from %llx:%x to %llx:%x\n", + "activating %s path from %llx:%u to %llx:%u\n", path->name, tb_route(path->hops[0].in_port->sw), path->hops[0].in_port->port, tb_route(path->hops[path->path_length - 1].out_port->sw), |