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

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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: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250903130730.2836022-2-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Vladimir Oltean
2025-09-03 16:07:25 +03:00
committed by Jakub Kicinski
parent 377373d688
commit 76cd8a2ea9
1 changed files with 9 additions and 2 deletions
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11
drivers/net/pcs/pcs-lynx.c
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@@ -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)