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thunderbolt: Introduce tb_tunnel_direction_downstream()
This helper takes tunnel as parameter. Convert existing code to call this where possible. No functional changes. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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@ -1387,7 +1387,7 @@ tb_recalc_estimated_bandwidth_for_group(struct tb_bandwidth_group *group)
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* - available bandwidth along the path
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* - bandwidth allocated for USB 3.x but not used.
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*/
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if (tb_port_path_direction_downstream(in, out))
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if (tb_tunnel_direction_downstream(tunnel))
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estimated_bw = estimated_down;
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else
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estimated_bw = estimated_up;
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@ -2388,11 +2388,11 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work)
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{
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struct tb_hotplug_event *ev = container_of(work, typeof(*ev), work);
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int requested_bw, requested_up, requested_down, ret;
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struct tb_port *in, *out;
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struct tb_tunnel *tunnel;
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struct tb *tb = ev->tb;
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struct tb_cm *tcm = tb_priv(tb);
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struct tb_switch *sw;
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struct tb_port *in;
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pm_runtime_get_sync(&tb->dev);
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@ -2456,10 +2456,7 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work)
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tb_port_dbg(in, "requested bandwidth %d Mb/s\n", requested_bw);
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out = tunnel->dst_port;
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if (tb_port_path_direction_downstream(in, out)) {
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if (tb_tunnel_direction_downstream(tunnel)) {
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requested_up = -1;
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requested_down = requested_bw;
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} else {
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@ -706,7 +706,7 @@ static int tb_dp_xchg_caps(struct tb_tunnel *tunnel)
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"DP OUT maximum supported bandwidth %u Mb/s x%u = %u Mb/s\n",
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out_rate, out_lanes, bw);
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if (tb_port_path_direction_downstream(in, out))
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if (tb_tunnel_direction_downstream(tunnel))
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max_bw = tunnel->max_down;
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else
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max_bw = tunnel->max_up;
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@ -831,7 +831,7 @@ static int tb_dp_bandwidth_alloc_mode_enable(struct tb_tunnel *tunnel)
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* max_up/down fields. For discovery we just read what the
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* estimation was set to.
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*/
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if (tb_port_path_direction_downstream(in, out))
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if (tb_tunnel_direction_downstream(tunnel))
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estimated_bw = tunnel->max_down;
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else
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estimated_bw = tunnel->max_up;
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@ -971,7 +971,6 @@ static int tb_dp_bandwidth_mode_consumed_bandwidth(struct tb_tunnel *tunnel,
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int *consumed_up,
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int *consumed_down)
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{
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struct tb_port *out = tunnel->dst_port;
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struct tb_port *in = tunnel->src_port;
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int ret, allocated_bw, max_bw_rounded;
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@ -993,7 +992,7 @@ static int tb_dp_bandwidth_mode_consumed_bandwidth(struct tb_tunnel *tunnel,
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if (allocated_bw == max_bw_rounded)
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allocated_bw = ret;
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if (tb_port_path_direction_downstream(in, out)) {
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if (tb_tunnel_direction_downstream(tunnel)) {
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*consumed_up = 0;
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*consumed_down = allocated_bw;
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} else {
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@ -1007,7 +1006,6 @@ static int tb_dp_bandwidth_mode_consumed_bandwidth(struct tb_tunnel *tunnel,
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static int tb_dp_allocated_bandwidth(struct tb_tunnel *tunnel, int *allocated_up,
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int *allocated_down)
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{
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struct tb_port *out = tunnel->dst_port;
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struct tb_port *in = tunnel->src_port;
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/*
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@ -1029,7 +1027,7 @@ static int tb_dp_allocated_bandwidth(struct tb_tunnel *tunnel, int *allocated_up
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if (allocated_bw == max_bw_rounded)
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allocated_bw = ret;
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if (tb_port_path_direction_downstream(in, out)) {
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if (tb_tunnel_direction_downstream(tunnel)) {
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*allocated_up = 0;
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*allocated_down = allocated_bw;
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} else {
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@ -1046,7 +1044,6 @@ static int tb_dp_allocated_bandwidth(struct tb_tunnel *tunnel, int *allocated_up
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static int tb_dp_alloc_bandwidth(struct tb_tunnel *tunnel, int *alloc_up,
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int *alloc_down)
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{
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struct tb_port *out = tunnel->dst_port;
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struct tb_port *in = tunnel->src_port;
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int max_bw_rounded, ret, tmp;
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@ -1057,7 +1054,7 @@ static int tb_dp_alloc_bandwidth(struct tb_tunnel *tunnel, int *alloc_up,
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if (ret < 0)
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return ret;
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if (tb_port_path_direction_downstream(in, out)) {
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if (tb_tunnel_direction_downstream(tunnel)) {
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tmp = min(*alloc_down, max_bw_rounded);
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ret = usb4_dp_port_allocate_bandwidth(in, tmp);
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if (ret)
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@ -1143,17 +1140,16 @@ static int tb_dp_read_cap(struct tb_tunnel *tunnel, unsigned int cap, u32 *rate,
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static int tb_dp_maximum_bandwidth(struct tb_tunnel *tunnel, int *max_up,
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int *max_down)
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{
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struct tb_port *in = tunnel->src_port;
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int ret;
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if (!usb4_dp_port_bandwidth_mode_enabled(in))
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if (!usb4_dp_port_bandwidth_mode_enabled(tunnel->src_port))
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return -EOPNOTSUPP;
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ret = tb_dp_bandwidth_mode_maximum_bandwidth(tunnel, NULL);
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if (ret < 0)
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return ret;
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if (tb_port_path_direction_downstream(in, tunnel->dst_port)) {
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if (tb_tunnel_direction_downstream(tunnel)) {
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*max_up = 0;
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*max_down = ret;
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} else {
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@ -1167,8 +1163,7 @@ static int tb_dp_maximum_bandwidth(struct tb_tunnel *tunnel, int *max_up,
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static int tb_dp_consumed_bandwidth(struct tb_tunnel *tunnel, int *consumed_up,
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int *consumed_down)
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{
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struct tb_port *in = tunnel->src_port;
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const struct tb_switch *sw = in->sw;
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const struct tb_switch *sw = tunnel->src_port->sw;
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u32 rate = 0, lanes = 0;
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int ret;
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@ -1214,7 +1209,7 @@ static int tb_dp_consumed_bandwidth(struct tb_tunnel *tunnel, int *consumed_up,
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return 0;
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}
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if (tb_port_path_direction_downstream(in, tunnel->dst_port)) {
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if (tb_tunnel_direction_downstream(tunnel)) {
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*consumed_up = 0;
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*consumed_down = tb_dp_bandwidth(rate, lanes);
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} else {
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@ -139,6 +139,12 @@ static inline bool tb_tunnel_is_usb3(const struct tb_tunnel *tunnel)
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return tunnel->type == TB_TUNNEL_USB3;
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}
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static inline bool tb_tunnel_direction_downstream(const struct tb_tunnel *tunnel)
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{
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return tb_port_path_direction_downstream(tunnel->src_port,
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tunnel->dst_port);
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}
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const char *tb_tunnel_type_name(const struct tb_tunnel *tunnel);
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#define __TB_TUNNEL_PRINT(level, tunnel, fmt, arg...) \
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