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thunderbolt: Introduce tb_tunnel_direction_downstream()

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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>
This commit is contained in:
Mika Westerberg 2024-01-09 17:48:34 +02:00
parent fca0f40ac7
commit 769da9708a
3 changed files with 18 additions and 20 deletions
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9
drivers/thunderbolt/tb.c
View File

@ -1387,7 +1387,7 @@ tb_recalc_estimated_bandwidth_for_group(struct tb_bandwidth_group *group)
* - available bandwidth along the path
* - bandwidth allocated for USB 3.x but not used.
*/
if (tb_port_path_direction_downstream(in, out))
if (tb_tunnel_direction_downstream(tunnel))
estimated_bw = estimated_down;
else
estimated_bw = estimated_up;
@ -2388,11 +2388,11 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work)
{
struct tb_hotplug_event *ev = container_of(work, typeof(*ev), work);
int requested_bw, requested_up, requested_down, ret;
struct tb_port *in, *out;
struct tb_tunnel *tunnel;
struct tb *tb = ev->tb;
struct tb_cm *tcm = tb_priv(tb);
struct tb_switch *sw;
struct tb_port *in;
pm_runtime_get_sync(&tb->dev);
@ -2456,10 +2456,7 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work)
tb_port_dbg(in, "requested bandwidth %d Mb/s\n", requested_bw);
out = tunnel->dst_port;
if (tb_port_path_direction_downstream(in, out)) {
if (tb_tunnel_direction_downstream(tunnel)) {
requested_up = -1;
requested_down = requested_bw;
} else {

23
drivers/thunderbolt/tunnel.c
View File

@ -706,7 +706,7 @@ static int tb_dp_xchg_caps(struct tb_tunnel *tunnel)
"DP OUT maximum supported bandwidth %u Mb/s x%u = %u Mb/s\n",
out_rate, out_lanes, bw);
if (tb_port_path_direction_downstream(in, out))
if (tb_tunnel_direction_downstream(tunnel))
max_bw = tunnel->max_down;
else
max_bw = tunnel->max_up;
@ -831,7 +831,7 @@ static int tb_dp_bandwidth_alloc_mode_enable(struct tb_tunnel *tunnel)
* max_up/down fields. For discovery we just read what the
* estimation was set to.
*/
if (tb_port_path_direction_downstream(in, out))
if (tb_tunnel_direction_downstream(tunnel))
estimated_bw = tunnel->max_down;
else
estimated_bw = tunnel->max_up;
@ -971,7 +971,6 @@ static int tb_dp_bandwidth_mode_consumed_bandwidth(struct tb_tunnel *tunnel,
int *consumed_up,
int *consumed_down)
{
struct tb_port *out = tunnel->dst_port;
struct tb_port *in = tunnel->src_port;
int ret, allocated_bw, max_bw_rounded;
@ -993,7 +992,7 @@ static int tb_dp_bandwidth_mode_consumed_bandwidth(struct tb_tunnel *tunnel,
if (allocated_bw == max_bw_rounded)
allocated_bw = ret;
if (tb_port_path_direction_downstream(in, out)) {
if (tb_tunnel_direction_downstream(tunnel)) {
*consumed_up = 0;
*consumed_down = allocated_bw;
} else {
@ -1007,7 +1006,6 @@ static int tb_dp_bandwidth_mode_consumed_bandwidth(struct tb_tunnel *tunnel,
static int tb_dp_allocated_bandwidth(struct tb_tunnel *tunnel, int *allocated_up,
int *allocated_down)
{
struct tb_port *out = tunnel->dst_port;
struct tb_port *in = tunnel->src_port;
/*
@ -1029,7 +1027,7 @@ static int tb_dp_allocated_bandwidth(struct tb_tunnel *tunnel, int *allocated_up
if (allocated_bw == max_bw_rounded)
allocated_bw = ret;
if (tb_port_path_direction_downstream(in, out)) {
if (tb_tunnel_direction_downstream(tunnel)) {
*allocated_up = 0;
*allocated_down = allocated_bw;
} else {
@ -1046,7 +1044,6 @@ static int tb_dp_allocated_bandwidth(struct tb_tunnel *tunnel, int *allocated_up
static int tb_dp_alloc_bandwidth(struct tb_tunnel *tunnel, int *alloc_up,
int *alloc_down)
{
struct tb_port *out = tunnel->dst_port;
struct tb_port *in = tunnel->src_port;
int max_bw_rounded, ret, tmp;
@ -1057,7 +1054,7 @@ static int tb_dp_alloc_bandwidth(struct tb_tunnel *tunnel, int *alloc_up,
if (ret < 0)
return ret;
if (tb_port_path_direction_downstream(in, out)) {
if (tb_tunnel_direction_downstream(tunnel)) {
tmp = min(*alloc_down, max_bw_rounded);
ret = usb4_dp_port_allocate_bandwidth(in, tmp);
if (ret)
@ -1143,17 +1140,16 @@ static int tb_dp_read_cap(struct tb_tunnel *tunnel, unsigned int cap, u32 *rate,
static int tb_dp_maximum_bandwidth(struct tb_tunnel *tunnel, int *max_up,
int *max_down)
{
struct tb_port *in = tunnel->src_port;
int ret;
if (!usb4_dp_port_bandwidth_mode_enabled(in))
if (!usb4_dp_port_bandwidth_mode_enabled(tunnel->src_port))
return -EOPNOTSUPP;
ret = tb_dp_bandwidth_mode_maximum_bandwidth(tunnel, NULL);
if (ret < 0)
return ret;
if (tb_port_path_direction_downstream(in, tunnel->dst_port)) {
if (tb_tunnel_direction_downstream(tunnel)) {
*max_up = 0;
*max_down = ret;
} else {
@ -1167,8 +1163,7 @@ static int tb_dp_maximum_bandwidth(struct tb_tunnel *tunnel, int *max_up,
static int tb_dp_consumed_bandwidth(struct tb_tunnel *tunnel, int *consumed_up,
int *consumed_down)
{
struct tb_port *in = tunnel->src_port;
const struct tb_switch *sw = in->sw;
const struct tb_switch *sw = tunnel->src_port->sw;
u32 rate = 0, lanes = 0;
int ret;
@ -1214,7 +1209,7 @@ static int tb_dp_consumed_bandwidth(struct tb_tunnel *tunnel, int *consumed_up,
return 0;
}
if (tb_port_path_direction_downstream(in, tunnel->dst_port)) {
if (tb_tunnel_direction_downstream(tunnel)) {
*consumed_up = 0;
*consumed_down = tb_dp_bandwidth(rate, lanes);
} else {

6
drivers/thunderbolt/tunnel.h
View File

@ -139,6 +139,12 @@ static inline bool tb_tunnel_is_usb3(const struct tb_tunnel *tunnel)
return tunnel->type == TB_TUNNEL_USB3;
}
static inline bool tb_tunnel_direction_downstream(const struct tb_tunnel *tunnel)
{
return tb_port_path_direction_downstream(tunnel->src_port,
tunnel->dst_port);
}
const char *tb_tunnel_type_name(const struct tb_tunnel *tunnel);
#define __TB_TUNNEL_PRINT(level, tunnel, fmt, arg...) \