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net: mvpp2: implement pcs_inband_caps() method

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Report the PCS in-band capabilities to phylink for Marvell PP2
interfaces.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUsE-006IUh-E7@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Russell King (Oracle) 2024-12-03 15:31:38 +00:00 committed by Jakub Kicinski
parent 513e8fb8fa
commit d4169f0c76
1 changed files with 16 additions and 9 deletions
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25
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
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@ -6224,19 +6224,26 @@ static const struct phylink_pcs_ops mvpp2_phylink_xlg_pcs_ops = {
.pcs_config = mvpp2_xlg_pcs_config,
};
static int mvpp2_gmac_pcs_validate(struct phylink_pcs *pcs,
unsigned long *supported,
const struct phylink_link_state *state)
static unsigned int mvpp2_gmac_pcs_inband_caps(struct phylink_pcs *pcs,
phy_interface_t interface)
{
/* When in 802.3z mode, we must have AN enabled:
/* When operating in an 802.3z mode, we must have AN enabled:
* Bit 2 Field InBandAnEn In-band Auto-Negotiation enable. ...
* When <PortType> = 1 (1000BASE-X) this field must be set to 1.
* Therefore, inband is "required".
*/
if (phy_interface_mode_is_8023z(state->interface) &&
!phylink_test(state->advertising, Autoneg))
return -EINVAL;
if (phy_interface_mode_is_8023z(interface))
return LINK_INBAND_ENABLE;
return 0;
/* SGMII and RGMII can be configured to use inband signalling of the
* AN result. Indicate these as "possible".
*/
if (interface == PHY_INTERFACE_MODE_SGMII ||
phy_interface_mode_is_rgmii(interface))
return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
/* For any other modes, indicate that inband is not supported. */
return LINK_INBAND_DISABLE;
}
static void mvpp2_gmac_pcs_get_state(struct phylink_pcs *pcs,
@ -6343,7 +6350,7 @@ static void mvpp2_gmac_pcs_an_restart(struct phylink_pcs *pcs)
}
static const struct phylink_pcs_ops mvpp2_phylink_gmac_pcs_ops = {
.pcs_validate = mvpp2_gmac_pcs_validate,
.pcs_inband_caps = mvpp2_gmac_pcs_inband_caps,
.pcs_get_state = mvpp2_gmac_pcs_get_state,
.pcs_config = mvpp2_gmac_pcs_config,
.pcs_an_restart = mvpp2_gmac_pcs_an_restart,