Commit 76cd8a2e authored by Vladimir Oltean's avatar Vladimir Oltean Committed by Jakub Kicinski
Browse files

net: pcs: lynx: support phy-mode = "10g-qxgmii" 



This is a SerDes protocol with 4 ports multiplexed over a single SerDes
lane, each port capable of 10/100/1000/2500. It is used on LS1028A lane
1, connected to the 4 switch ports.

Signed-off-by: default avatarVladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250903130730.2836022-2-vladimir.oltean@nxp.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 377373d6

drivers/net/pcs/pcs-lynx.c

+9 −2
Original line number Diff line number Diff line
@@ -49,6 +49,7 @@ static unsigned int lynx_pcs_inband_caps(struct phylink_pcs *pcs, 
		return LINK_INBAND_DISABLE;



	case PHY_INTERFACE_MODE_USXGMII:

	case PHY_INTERFACE_MODE_10G_QXGMII:

		return LINK_INBAND_ENABLE;



	default:
@@ -115,6 +116,7 @@ static void lynx_pcs_get_state(struct phylink_pcs *pcs, unsigned int neg_mode, 
		lynx_pcs_get_state_2500basex(lynx->mdio, state);

		break;

	case PHY_INTERFACE_MODE_USXGMII:

	case PHY_INTERFACE_MODE_10G_QXGMII:

		lynx_pcs_get_state_usxgmii(lynx->mdio, state);

		break;

	case PHY_INTERFACE_MODE_10GBASER:
@@ -170,6 +172,7 @@ static int lynx_pcs_config_giga(struct mdio_device *pcs, 
}



static int lynx_pcs_config_usxgmii(struct mdio_device *pcs,

				   phy_interface_t interface,

				   const unsigned long *advertising,

				   unsigned int neg_mode)

{
@@ -177,7 +180,8 @@ static int lynx_pcs_config_usxgmii(struct mdio_device *pcs, 
	int addr = pcs->addr;



	if (neg_mode != PHYLINK_PCS_NEG_INBAND_ENABLED) {

		dev_err(&pcs->dev, "USXGMII only supports in-band AN for now\n");

		dev_err(&pcs->dev, "%s only supports in-band AN for now\n",

			phy_modes(interface));

		return -EOPNOTSUPP;

	}
@@ -208,7 +212,8 @@ static int lynx_pcs_config(struct phylink_pcs *pcs, unsigned int neg_mode, 
		}

		break;

	case PHY_INTERFACE_MODE_USXGMII:

		return lynx_pcs_config_usxgmii(lynx->mdio, advertising,

	case PHY_INTERFACE_MODE_10G_QXGMII:

		return lynx_pcs_config_usxgmii(lynx->mdio, ifmode, advertising,

					       neg_mode);

	case PHY_INTERFACE_MODE_10GBASER:

		/* Nothing to do here for 10GBASER */
@@ -317,6 +322,7 @@ static void lynx_pcs_link_up(struct phylink_pcs *pcs, unsigned int neg_mode, 
		lynx_pcs_link_up_2500basex(lynx->mdio, neg_mode, speed, duplex);

		break;

	case PHY_INTERFACE_MODE_USXGMII:

	case PHY_INTERFACE_MODE_10G_QXGMII:

		/* At the moment, only in-band AN is supported for USXGMII

		 * so nothing to do in link_up

		 */
@@ -341,6 +347,7 @@ static const phy_interface_t lynx_interfaces[] = { 
	PHY_INTERFACE_MODE_2500BASEX,

	PHY_INTERFACE_MODE_10GBASER,

	PHY_INTERFACE_MODE_USXGMII,

	PHY_INTERFACE_MODE_10G_QXGMII,

};



static struct phylink_pcs *lynx_pcs_create(struct mdio_device *mdio)