1 // SPDX-License-Identifier: GPL-2.0-or-later
7 #include "phy-caps.h"
34 		return -EINVAL;  in speed_duplex_to_capa()
57 	return -EINVAL;  in speed_duplex_to_capa()
60 #define for_each_link_caps_asc_speed(cap) \  argument
61 	for (cap = link_caps; cap < &link_caps[__LINK_CAPA_MAX]; cap++)
63 #define for_each_link_caps_desc_speed(cap) \  argument
64 	for (cap = &link_caps[__LINK_CAPA_MAX - 1]; cap >= link_caps; cap--)
67  * phy_caps_init() - Initializes the link_caps array from the link_mode_params.
69  * Returns: 0 if phy caps init was successful, -EINVAL if we found an
81 		capa = speed_duplex_to_capa(linkmode->speed, linkmode->duplex);  in phy_caps_init()
84 			if (linkmode->speed != SPEED_UNKNOWN) {  in phy_caps_init()
86 				       linkmode->speed);  in phy_caps_init()
87 				return -EINVAL;  in phy_caps_init()
99  * phy_caps_speeds() - Fill an array of supported SPEED_* values for given modes
102  * @linkmodes: Linkmodes to get the speeds from
117 		if (linkmode_intersects(lcap->linkmodes, linkmodes) &&  in phy_caps_speeds()
118 		    (count == 0 || speeds[count - 1] != lcap->speed)) {  in phy_caps_speeds()
119 			speeds[count++] = lcap->speed;  in phy_caps_speeds()
129  * phy_caps_lookup_by_linkmode() - Lookup the fastest matching link_capabilities
132  * Returns: The highest-speed link_capabilities that intersects the given
142 		if (linkmode_intersects(lcap->linkmodes, linkmodes))  in phy_caps_lookup_by_linkmode()
149  * phy_caps_lookup_by_linkmode_rev() - Lookup the slowest matching link_capabilities
153  * Returns: The lowest-speed link_capabilities that intersects the given
154  *	    linkmodes. When set, fdx_only will ignore half-duplex matches.
163 		if (fdx_only && lcap->duplex != DUPLEX_FULL)  in phy_caps_lookup_by_linkmode_rev()
166 		if (linkmode_intersects(lcap->linkmodes, linkmodes))  in phy_caps_lookup_by_linkmode_rev()
174  * phy_caps_lookup() - Lookup capabilities by speed/duplex that matches a mask
201 		if (linkmode_intersects(lcap->linkmodes, supported)) {  in phy_caps_lookup()
204 			if (lcap->speed == speed && lcap->duplex == duplex) {  in phy_caps_lookup()
207 				if (lcap->speed <= speed)  in phy_caps_lookup()
221  * phy_caps_linkmode_max_speed() - Clamp a linkmodes set to a max speed
230 		if (lcap->speed > max_speed)  in phy_caps_linkmode_max_speed()
231 			linkmode_andnot(linkmodes, linkmodes, lcap->linkmodes);  in phy_caps_linkmode_max_speed()
237  * phy_caps_valid() - Validate a linkmodes set agains given speed and duplex
256  * phy_caps_linkmodes() - Convert a bitfield of capabilities into linkmodes
270  * phy_caps_from_interface() - Get the link capa from a given PHY interface
271  * @interface: The PHY interface we want to get the possible Speed/Duplex from