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Code Issues Releases Wiki Activity

thunderbolt: Make bandwidth allocation mode function names consistent

Browse source 
Make sure the DisplayPort bandwidth allocation mode function names are
consistent with the existing ones, such as USB3.

No functional changes.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Mika Westerberg 2023-02-01 13:21:37 +02:00
parent fd4d58d1fe
commit 8d73f6b8e0
4 changed files with 52 additions and 46 deletions
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10
drivers/thunderbolt/tb.c
View file

@ -131,7 +131,7 @@ tb_attach_bandwidth_group(struct tb_cm *tcm, struct tb_port *in,
static void tb_discover_bandwidth_group(struct tb_cm *tcm, struct tb_port *in, static void tb_discover_bandwidth_group(struct tb_cm *tcm, struct tb_port *in,
struct tb_port *out) struct tb_port *out)
{ {
if (usb4_dp_port_bw_mode_enabled(in)) { if (usb4_dp_port_bandwidth_mode_enabled(in)) {
int index, i; int index, i;
index = usb4_dp_port_group_id(in); index = usb4_dp_port_group_id(in);
@ -1169,7 +1169,7 @@ tb_recalc_estimated_bandwidth_for_group(struct tb_bandwidth_group *group)
struct tb_tunnel *tunnel; struct tb_tunnel *tunnel;
struct tb_port *out; struct tb_port *out;
if (!usb4_dp_port_bw_mode_enabled(in)) if (!usb4_dp_port_bandwidth_mode_enabled(in))
continue; continue;
tunnel = tb_find_tunnel(tb, TB_TUNNEL_DP, in, NULL); tunnel = tb_find_tunnel(tb, TB_TUNNEL_DP, in, NULL);
@ -1217,7 +1217,7 @@ tb_recalc_estimated_bandwidth_for_group(struct tb_bandwidth_group *group)
else else
estimated_bw = estimated_up; estimated_bw = estimated_up;
if (usb4_dp_port_set_estimated_bw(in, estimated_bw)) if (usb4_dp_port_set_estimated_bandwidth(in, estimated_bw))
tb_port_warn(in, "failed to update estimated bandwidth\n"); tb_port_warn(in, "failed to update estimated bandwidth\n");
} }
@ -1912,12 +1912,12 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work)
tb_port_dbg(in, "handling bandwidth allocation request\n"); tb_port_dbg(in, "handling bandwidth allocation request\n");
if (!usb4_dp_port_bw_mode_enabled(in)) { if (!usb4_dp_port_bandwidth_mode_enabled(in)) {
tb_port_warn(in, "bandwidth allocation mode not enabled\n"); tb_port_warn(in, "bandwidth allocation mode not enabled\n");
goto unlock; goto unlock;
} }
ret = usb4_dp_port_requested_bw(in); ret = usb4_dp_port_requested_bandwidth(in);
if (ret < 0) { if (ret < 0) {
if (ret == -ENODATA) if (ret == -ENODATA)
tb_port_dbg(in, "no bandwidth request active\n"); tb_port_dbg(in, "no bandwidth request active\n");

15
drivers/thunderbolt/tb.h
View file

@ -1292,19 +1292,20 @@ int usb4_usb3_port_release_bandwidth(struct tb_port *port, int *upstream_bw,
int *downstream_bw); int *downstream_bw);
int usb4_dp_port_set_cm_id(struct tb_port *port, int cm_id); int usb4_dp_port_set_cm_id(struct tb_port *port, int cm_id);
bool usb4_dp_port_bw_mode_supported(struct tb_port *port); bool usb4_dp_port_bandwidth_mode_supported(struct tb_port *port);
bool usb4_dp_port_bw_mode_enabled(struct tb_port *port); bool usb4_dp_port_bandwidth_mode_enabled(struct tb_port *port);
int usb4_dp_port_set_cm_bw_mode_supported(struct tb_port *port, bool supported); int usb4_dp_port_set_cm_bandwidth_mode_supported(struct tb_port *port,
bool supported);
int usb4_dp_port_group_id(struct tb_port *port); int usb4_dp_port_group_id(struct tb_port *port);
int usb4_dp_port_set_group_id(struct tb_port *port, int group_id); int usb4_dp_port_set_group_id(struct tb_port *port, int group_id);
int usb4_dp_port_nrd(struct tb_port *port, int *rate, int *lanes); int usb4_dp_port_nrd(struct tb_port *port, int *rate, int *lanes);
int usb4_dp_port_set_nrd(struct tb_port *port, int rate, int lanes); int usb4_dp_port_set_nrd(struct tb_port *port, int rate, int lanes);
int usb4_dp_port_granularity(struct tb_port *port); int usb4_dp_port_granularity(struct tb_port *port);
int usb4_dp_port_set_granularity(struct tb_port *port, int granularity); int usb4_dp_port_set_granularity(struct tb_port *port, int granularity);
int usb4_dp_port_set_estimated_bw(struct tb_port *port, int bw); int usb4_dp_port_set_estimated_bandwidth(struct tb_port *port, int bw);
int usb4_dp_port_allocated_bw(struct tb_port *port); int usb4_dp_port_allocated_bandwidth(struct tb_port *port);
int usb4_dp_port_allocate_bw(struct tb_port *port, int bw); int usb4_dp_port_allocate_bandwidth(struct tb_port *port, int bw);
int usb4_dp_port_requested_bw(struct tb_port *port); int usb4_dp_port_requested_bandwidth(struct tb_port *port);
int usb4_pci_port_set_ext_encapsulation(struct tb_port *port, bool enable); int usb4_pci_port_set_ext_encapsulation(struct tb_port *port, bool enable);

41
drivers/thunderbolt/tunnel.c
View file

@ -641,7 +641,7 @@ static int tb_dp_xchg_caps(struct tb_tunnel *tunnel)
in->cap_adap + DP_REMOTE_CAP, 1); in->cap_adap + DP_REMOTE_CAP, 1);
} }
static int tb_dp_bw_alloc_mode_enable(struct tb_tunnel *tunnel) static int tb_dp_bandwidth_alloc_mode_enable(struct tb_tunnel *tunnel)
{ {
int ret, estimated_bw, granularity, tmp; int ret, estimated_bw, granularity, tmp;
struct tb_port *out = tunnel->dst_port; struct tb_port *out = tunnel->dst_port;
@ -653,7 +653,7 @@ static int tb_dp_bw_alloc_mode_enable(struct tb_tunnel *tunnel)
if (!bw_alloc_mode) if (!bw_alloc_mode)
return 0; return 0;
ret = usb4_dp_port_set_cm_bw_mode_supported(in, true); ret = usb4_dp_port_set_cm_bandwidth_mode_supported(in, true);
if (ret) if (ret)
return ret; return ret;
@ -717,12 +717,12 @@ static int tb_dp_bw_alloc_mode_enable(struct tb_tunnel *tunnel)
tb_port_dbg(in, "estimated bandwidth %d Mb/s\n", estimated_bw); tb_port_dbg(in, "estimated bandwidth %d Mb/s\n", estimated_bw);
ret = usb4_dp_port_set_estimated_bw(in, estimated_bw); ret = usb4_dp_port_set_estimated_bandwidth(in, estimated_bw);
if (ret) if (ret)
return ret; return ret;
/* Initial allocation should be 0 according the spec */ /* Initial allocation should be 0 according the spec */
ret = usb4_dp_port_allocate_bw(in, 0); ret = usb4_dp_port_allocate_bandwidth(in, 0);
if (ret) if (ret)
return ret; return ret;
@ -744,7 +744,7 @@ static int tb_dp_init(struct tb_tunnel *tunnel)
if (!tb_switch_is_usb4(sw)) if (!tb_switch_is_usb4(sw))
return 0; return 0;
if (!usb4_dp_port_bw_mode_supported(in)) if (!usb4_dp_port_bandwidth_mode_supported(in))
return 0; return 0;
tb_port_dbg(in, "bandwidth allocation mode supported\n"); tb_port_dbg(in, "bandwidth allocation mode supported\n");
@ -753,17 +753,17 @@ static int tb_dp_init(struct tb_tunnel *tunnel)
if (ret) if (ret)
return ret; return ret;
return tb_dp_bw_alloc_mode_enable(tunnel); return tb_dp_bandwidth_alloc_mode_enable(tunnel);
} }
static void tb_dp_deinit(struct tb_tunnel *tunnel) static void tb_dp_deinit(struct tb_tunnel *tunnel)
{ {
struct tb_port *in = tunnel->src_port; struct tb_port *in = tunnel->src_port;
if (!usb4_dp_port_bw_mode_supported(in)) if (!usb4_dp_port_bandwidth_mode_supported(in))
return; return;
if (usb4_dp_port_bw_mode_enabled(in)) { if (usb4_dp_port_bandwidth_mode_enabled(in)) {
usb4_dp_port_set_cm_bw_mode_supported(in, false); usb4_dp_port_set_cm_bandwidth_mode_supported(in, false);
tb_port_dbg(in, "bandwidth allocation mode disabled\n"); tb_port_dbg(in, "bandwidth allocation mode disabled\n");
} }
} }
@ -827,21 +827,22 @@ static int tb_dp_nrd_bandwidth(struct tb_tunnel *tunnel, int *max_bw)
return nrd_bw; return nrd_bw;
} }
static int tb_dp_bw_mode_consumed_bandwidth(struct tb_tunnel *tunnel, static int tb_dp_bandwidth_mode_consumed_bandwidth(struct tb_tunnel *tunnel,
int *consumed_up, int *consumed_down) int *consumed_up,
int *consumed_down)
{ {
struct tb_port *out = tunnel->dst_port; struct tb_port *out = tunnel->dst_port;
struct tb_port *in = tunnel->src_port; struct tb_port *in = tunnel->src_port;
int ret, allocated_bw, max_bw; int ret, allocated_bw, max_bw;
if (!usb4_dp_port_bw_mode_enabled(in)) if (!usb4_dp_port_bandwidth_mode_enabled(in))
return -EOPNOTSUPP; return -EOPNOTSUPP;
if (!tunnel->bw_mode) if (!tunnel->bw_mode)
return -EOPNOTSUPP; return -EOPNOTSUPP;
/* Read what was allocated previously if any */ /* Read what was allocated previously if any */
ret = usb4_dp_port_allocated_bw(in); ret = usb4_dp_port_allocated_bandwidth(in);
if (ret < 0) if (ret < 0)
return ret; return ret;
allocated_bw = ret; allocated_bw = ret;
@ -876,10 +877,10 @@ static int tb_dp_allocated_bandwidth(struct tb_tunnel *tunnel, int *allocated_up
* If we have already set the allocated bandwidth then use that. * If we have already set the allocated bandwidth then use that.
* Otherwise we read it from the DPRX. * Otherwise we read it from the DPRX.
*/ */
if (usb4_dp_port_bw_mode_enabled(in) && tunnel->bw_mode) { if (usb4_dp_port_bandwidth_mode_enabled(in) && tunnel->bw_mode) {
int ret, allocated_bw, max_bw; int ret, allocated_bw, max_bw;
ret = usb4_dp_port_allocated_bw(in); ret = usb4_dp_port_allocated_bandwidth(in);
if (ret < 0) if (ret < 0)
return ret; return ret;
allocated_bw = ret; allocated_bw = ret;
@ -911,7 +912,7 @@ static int tb_dp_alloc_bandwidth(struct tb_tunnel *tunnel, int *alloc_up,
struct tb_port *in = tunnel->src_port; struct tb_port *in = tunnel->src_port;
int max_bw, ret, tmp; int max_bw, ret, tmp;
if (!usb4_dp_port_bw_mode_enabled(in)) if (!usb4_dp_port_bandwidth_mode_enabled(in))
return -EOPNOTSUPP; return -EOPNOTSUPP;
ret = tb_dp_nrd_bandwidth(tunnel, &max_bw); ret = tb_dp_nrd_bandwidth(tunnel, &max_bw);
@ -920,14 +921,14 @@ static int tb_dp_alloc_bandwidth(struct tb_tunnel *tunnel, int *alloc_up,
if (in->sw->config.depth < out->sw->config.depth) { if (in->sw->config.depth < out->sw->config.depth) {
tmp = min(*alloc_down, max_bw); tmp = min(*alloc_down, max_bw);
ret = usb4_dp_port_allocate_bw(in, tmp); ret = usb4_dp_port_allocate_bandwidth(in, tmp);
if (ret) if (ret)
return ret; return ret;
*alloc_down = tmp; *alloc_down = tmp;
*alloc_up = 0; *alloc_up = 0;
} else { } else {
tmp = min(*alloc_up, max_bw); tmp = min(*alloc_up, max_bw);
ret = usb4_dp_port_allocate_bw(in, tmp); ret = usb4_dp_port_allocate_bandwidth(in, tmp);
if (ret) if (ret)
return ret; return ret;
*alloc_down = 0; *alloc_down = 0;
@ -1048,8 +1049,8 @@ static int tb_dp_consumed_bandwidth(struct tb_tunnel *tunnel, int *consumed_up,
* mode is enabled first and then read the bandwidth * mode is enabled first and then read the bandwidth
* through those registers. * through those registers.
*/ */
ret = tb_dp_bw_mode_consumed_bandwidth(tunnel, consumed_up, ret = tb_dp_bandwidth_mode_consumed_bandwidth(tunnel, consumed_up,
consumed_down); consumed_down);
if (ret < 0) { if (ret < 0) {
if (ret != -EOPNOTSUPP) if (ret != -EOPNOTSUPP)
return ret; return ret;

32
drivers/thunderbolt/usb4.c
View file

@ -2294,13 +2294,14 @@ int usb4_dp_port_set_cm_id(struct tb_port *port, int cm_id)
} }
/** /**
* usb4_dp_port_bw_mode_supported() - Is the bandwidth allocation mode supported * usb4_dp_port_bandwidth_mode_supported() - Is the bandwidth allocation mode
* supported
* @port: DP IN adapter to check * @port: DP IN adapter to check
* *
* Can be called to any DP IN adapter. Returns true if the adapter * Can be called to any DP IN adapter. Returns true if the adapter
* supports USB4 bandwidth allocation mode, false otherwise. * supports USB4 bandwidth allocation mode, false otherwise.
*/ */
bool usb4_dp_port_bw_mode_supported(struct tb_port *port) bool usb4_dp_port_bandwidth_mode_supported(struct tb_port *port)
{ {
int ret; int ret;
u32 val; u32 val;
@ -2317,13 +2318,14 @@ bool usb4_dp_port_bw_mode_supported(struct tb_port *port)
} }
/** /**
* usb4_dp_port_bw_mode_enabled() - Is the bandwidth allocation mode enabled * usb4_dp_port_bandwidth_mode_enabled() - Is the bandwidth allocation mode
* enabled
* @port: DP IN adapter to check * @port: DP IN adapter to check
* *
* Can be called to any DP IN adapter. Returns true if the bandwidth * Can be called to any DP IN adapter. Returns true if the bandwidth
* allocation mode has been enabled, false otherwise. * allocation mode has been enabled, false otherwise.
*/ */
bool usb4_dp_port_bw_mode_enabled(struct tb_port *port) bool usb4_dp_port_bandwidth_mode_enabled(struct tb_port *port)
{ {
int ret; int ret;
u32 val; u32 val;
@ -2340,7 +2342,8 @@ bool usb4_dp_port_bw_mode_enabled(struct tb_port *port)
} }
/** /**
* usb4_dp_port_set_cm_bw_mode_supported() - Set/clear CM support for bandwidth allocation mode * usb4_dp_port_set_cm_bandwidth_mode_supported() - Set/clear CM support for
* bandwidth allocation mode
* @port: DP IN adapter * @port: DP IN adapter
* @supported: Does the CM support bandwidth allocation mode * @supported: Does the CM support bandwidth allocation mode
* *
@ -2349,7 +2352,8 @@ bool usb4_dp_port_bw_mode_enabled(struct tb_port *port)
* otherwise. Specifically returns %-OPNOTSUPP if the passed in adapter * otherwise. Specifically returns %-OPNOTSUPP if the passed in adapter
* does not support this. * does not support this.
*/ */
int usb4_dp_port_set_cm_bw_mode_supported(struct tb_port *port, bool supported) int usb4_dp_port_set_cm_bandwidth_mode_supported(struct tb_port *port,
bool supported)
{ {
u32 val; u32 val;
int ret; int ret;
@ -2623,7 +2627,7 @@ int usb4_dp_port_set_granularity(struct tb_port *port, int granularity)
} }
/** /**
* usb4_dp_port_set_estimated_bw() - Set estimated bandwidth * usb4_dp_port_set_estimated_bandwidth() - Set estimated bandwidth
* @port: DP IN adapter * @port: DP IN adapter
* @bw: Estimated bandwidth in Mb/s. * @bw: Estimated bandwidth in Mb/s.
* *
@ -2633,7 +2637,7 @@ int usb4_dp_port_set_granularity(struct tb_port *port, int granularity)
* and negative errno otherwise. Specifically returns %-EOPNOTSUPP if * and negative errno otherwise. Specifically returns %-EOPNOTSUPP if
* the adapter does not support this. * the adapter does not support this.
*/ */
int usb4_dp_port_set_estimated_bw(struct tb_port *port, int bw) int usb4_dp_port_set_estimated_bandwidth(struct tb_port *port, int bw)
{ {
u32 val, granularity; u32 val, granularity;
int ret; int ret;
@ -2659,14 +2663,14 @@ int usb4_dp_port_set_estimated_bw(struct tb_port *port, int bw)
} }
/** /**
* usb4_dp_port_allocated_bw() - Return allocated bandwidth * usb4_dp_port_allocated_bandwidth() - Return allocated bandwidth
* @port: DP IN adapter * @port: DP IN adapter
* *
* Reads and returns allocated bandwidth for @port in Mb/s (taking into * Reads and returns allocated bandwidth for @port in Mb/s (taking into
* account the programmed granularity). Returns negative errno in case * account the programmed granularity). Returns negative errno in case
* of error. * of error.
*/ */
int usb4_dp_port_allocated_bw(struct tb_port *port) int usb4_dp_port_allocated_bandwidth(struct tb_port *port)
{ {
u32 val, granularity; u32 val, granularity;
int ret; int ret;
@ -2752,7 +2756,7 @@ static int usb4_dp_port_wait_and_clear_cm_ack(struct tb_port *port,
} }
/** /**
* usb4_dp_port_allocate_bw() - Set allocated bandwidth * usb4_dp_port_allocate_bandwidth() - Set allocated bandwidth
* @port: DP IN adapter * @port: DP IN adapter
* @bw: New allocated bandwidth in Mb/s * @bw: New allocated bandwidth in Mb/s
* *
@ -2760,7 +2764,7 @@ static int usb4_dp_port_wait_and_clear_cm_ack(struct tb_port *port,
* driver). Takes into account the programmed granularity. Returns %0 in * driver). Takes into account the programmed granularity. Returns %0 in
* success and negative errno in case of error. * success and negative errno in case of error.
*/ */
int usb4_dp_port_allocate_bw(struct tb_port *port, int bw) int usb4_dp_port_allocate_bandwidth(struct tb_port *port, int bw)
{ {
u32 val, granularity; u32 val, granularity;
int ret; int ret;
@ -2794,7 +2798,7 @@ int usb4_dp_port_allocate_bw(struct tb_port *port, int bw)
} }
/** /**
* usb4_dp_port_requested_bw() - Read requested bandwidth * usb4_dp_port_requested_bandwidth() - Read requested bandwidth
* @port: DP IN adapter * @port: DP IN adapter
* *
* Reads the DPCD (graphics driver) requested bandwidth and returns it * Reads the DPCD (graphics driver) requested bandwidth and returns it
@ -2803,7 +2807,7 @@ int usb4_dp_port_allocate_bw(struct tb_port *port, int bw)
* the adapter does not support bandwidth allocation mode, and %ENODATA * the adapter does not support bandwidth allocation mode, and %ENODATA
* if there is no active bandwidth request from the graphics driver. * if there is no active bandwidth request from the graphics driver.
*/ */
int usb4_dp_port_requested_bw(struct tb_port *port) int usb4_dp_port_requested_bandwidth(struct tb_port *port)
{ {
u32 val, granularity; u32 val, granularity;
int ret; int ret;