mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-03 20:34:23 -04:00
Code Issues Packages Projects Releases Wiki Activity

net: mvneta: implement pcs_inband_caps() method

Browse Source 
Report the PCS in-band capabilities to phylink for Marvell NETA
interfaces.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUs9-006IUb-Au@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Russell King (Oracle)
2024-12-03 15:31:33 +00:00
committed by Jakub Kicinski
parent df874f9e52
commit 513e8fb8fa
1 changed files with 17 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/net/ethernet/marvell/mvneta.c
View File

@@ -3960,20 +3960,27 @@ static struct mvneta_port *mvneta_pcs_to_port(struct phylink_pcs *pcs)
return container_of(pcs, struct mvneta_port, phylink_pcs);
}
static int mvneta_pcs_validate(struct phylink_pcs *pcs,
unsigned long *supported,
const struct phylink_link_state *state)
static unsigned int mvneta_pcs_inband_caps(struct phylink_pcs *pcs,
phy_interface_t interface)
{
/* We only support QSGMII, SGMII, 802.3z and RGMII modes.
* 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;
/* QSGMII, SGMII and RGMII can be configured to use inband
* signalling of the AN result. Indicate these as "possible".
*/
if (interface == PHY_INTERFACE_MODE_SGMII ||
interface == PHY_INTERFACE_MODE_QSGMII ||
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 mvneta_pcs_get_state(struct phylink_pcs *pcs,
@@ -4071,7 +4078,7 @@ static void mvneta_pcs_an_restart(struct phylink_pcs *pcs)
}
static const struct phylink_pcs_ops mvneta_phylink_pcs_ops = {
.pcs_validate = mvneta_pcs_validate,
.pcs_inband_caps = mvneta_pcs_inband_caps,
.pcs_get_state = mvneta_pcs_get_state,
.pcs_config = mvneta_pcs_config,
.pcs_an_restart = mvneta_pcs_an_restart,