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path: root/drivers/net/pcs
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Diffstat (limited to 'drivers/net/pcs')
-rw-r--r--drivers/net/pcs/pcs-lynx.c77
-rw-r--r--drivers/net/pcs/pcs-xpcs-plat.c5
-rw-r--r--drivers/net/pcs/pcs-xpcs.c136
3 files changed, 132 insertions, 86 deletions
diff --git a/drivers/net/pcs/pcs-lynx.c b/drivers/net/pcs/pcs-lynx.c
index 677f92883976..73e1364ad1ed 100644
--- a/drivers/net/pcs/pcs-lynx.c
+++ b/drivers/net/pcs/pcs-lynx.c
@@ -40,12 +40,12 @@ static unsigned int lynx_pcs_inband_caps(struct phylink_pcs *pcs,
{
switch (interface) {
case PHY_INTERFACE_MODE_1000BASEX:
+ case PHY_INTERFACE_MODE_2500BASEX:
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_QSGMII:
return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
case PHY_INTERFACE_MODE_10GBASER:
- case PHY_INTERFACE_MODE_2500BASEX:
return LINK_INBAND_DISABLE;
case PHY_INTERFACE_MODE_USXGMII:
@@ -80,27 +80,6 @@ static void lynx_pcs_get_state_usxgmii(struct mdio_device *pcs,
phylink_decode_usxgmii_word(state, lpa);
}
-static void lynx_pcs_get_state_2500basex(struct mdio_device *pcs,
- struct phylink_link_state *state)
-{
- int bmsr;
-
- bmsr = mdiodev_read(pcs, MII_BMSR);
- if (bmsr < 0) {
- state->link = false;
- return;
- }
-
- state->link = !!(bmsr & BMSR_LSTATUS);
- state->an_complete = !!(bmsr & BMSR_ANEGCOMPLETE);
- if (!state->link)
- return;
-
- state->speed = SPEED_2500;
- state->pause |= MLO_PAUSE_TX | MLO_PAUSE_RX;
- state->duplex = DUPLEX_FULL;
-}
-
static void lynx_pcs_get_state(struct phylink_pcs *pcs, unsigned int neg_mode,
struct phylink_link_state *state)
{
@@ -108,13 +87,11 @@ static void lynx_pcs_get_state(struct phylink_pcs *pcs, unsigned int neg_mode,
switch (state->interface) {
case PHY_INTERFACE_MODE_1000BASEX:
+ case PHY_INTERFACE_MODE_2500BASEX:
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_QSGMII:
phylink_mii_c22_pcs_get_state(lynx->mdio, neg_mode, state);
break;
- case PHY_INTERFACE_MODE_2500BASEX:
- 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);
@@ -152,7 +129,8 @@ static int lynx_pcs_config_giga(struct mdio_device *pcs,
mdiodev_write(pcs, LINK_TIMER_HI, link_timer >> 16);
}
- if (interface == PHY_INTERFACE_MODE_1000BASEX) {
+ if (interface == PHY_INTERFACE_MODE_1000BASEX ||
+ interface == PHY_INTERFACE_MODE_2500BASEX) {
if_mode = 0;
} else {
/* SGMII and QSGMII */
@@ -202,15 +180,9 @@ static int lynx_pcs_config(struct phylink_pcs *pcs, unsigned int neg_mode,
case PHY_INTERFACE_MODE_1000BASEX:
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_QSGMII:
+ case PHY_INTERFACE_MODE_2500BASEX:
return lynx_pcs_config_giga(lynx->mdio, ifmode, advertising,
neg_mode);
- case PHY_INTERFACE_MODE_2500BASEX:
- if (neg_mode == PHYLINK_PCS_NEG_INBAND_ENABLED) {
- dev_err(&lynx->mdio->dev,
- "AN not supported on 3.125GHz SerDes lane\n");
- return -EOPNOTSUPP;
- }
- break;
case PHY_INTERFACE_MODE_USXGMII:
case PHY_INTERFACE_MODE_10G_QXGMII:
return lynx_pcs_config_usxgmii(lynx->mdio, ifmode, advertising,
@@ -271,42 +243,6 @@ static void lynx_pcs_link_up_sgmii(struct mdio_device *pcs,
if_mode);
}
-/* 2500Base-X is SerDes protocol 7 on Felix and 6 on ENETC. It is a SerDes lane
- * clocked at 3.125 GHz which encodes symbols with 8b/10b and does not have
- * auto-negotiation of any link parameters. Electrically it is compatible with
- * a single lane of XAUI.
- * The hardware reference manual wants to call this mode SGMII, but it isn't
- * really, since the fundamental features of SGMII:
- * - Downgrading the link speed by duplicating symbols
- * - Auto-negotiation
- * are not there.
- * The speed is configured at 1000 in the IF_MODE because the clock frequency
- * is actually given by a PLL configured in the Reset Configuration Word (RCW).
- * Since there is no difference between fixed speed SGMII w/o AN and 802.3z w/o
- * AN, we call this PHY interface type 2500Base-X. In case a PHY negotiates a
- * lower link speed on line side, the system-side interface remains fixed at
- * 2500 Mbps and we do rate adaptation through pause frames.
- */
-static void lynx_pcs_link_up_2500basex(struct mdio_device *pcs,
- unsigned int neg_mode,
- int speed, int duplex)
-{
- u16 if_mode = 0;
-
- if (neg_mode == PHYLINK_PCS_NEG_INBAND_ENABLED) {
- dev_err(&pcs->dev, "AN not supported for 2500BaseX\n");
- return;
- }
-
- if (duplex == DUPLEX_HALF)
- if_mode |= IF_MODE_HALF_DUPLEX;
- if_mode |= IF_MODE_SPEED(SGMII_SPEED_2500);
-
- mdiodev_modify(pcs, IF_MODE,
- IF_MODE_HALF_DUPLEX | IF_MODE_SPEED_MSK,
- if_mode);
-}
-
static void lynx_pcs_link_up(struct phylink_pcs *pcs, unsigned int neg_mode,
phy_interface_t interface,
int speed, int duplex)
@@ -318,9 +254,6 @@ static void lynx_pcs_link_up(struct phylink_pcs *pcs, unsigned int neg_mode,
case PHY_INTERFACE_MODE_QSGMII:
lynx_pcs_link_up_sgmii(lynx->mdio, neg_mode, speed, duplex);
break;
- case PHY_INTERFACE_MODE_2500BASEX:
- 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
diff --git a/drivers/net/pcs/pcs-xpcs-plat.c b/drivers/net/pcs/pcs-xpcs-plat.c
index 9e1ccc319a1d..b8c48f9effbf 100644
--- a/drivers/net/pcs/pcs-xpcs-plat.c
+++ b/drivers/net/pcs/pcs-xpcs-plat.c
@@ -365,9 +365,6 @@ static int xpcs_plat_init_dev(struct dw_xpcs_plat *pxpcs)
err_clean_data:
mdiodev->dev.platform_data = NULL;
- fwnode_handle_put(dev_fwnode(&mdiodev->dev));
- device_set_node(&mdiodev->dev, NULL);
-
mdio_device_free(mdiodev);
return ret;
@@ -456,5 +453,5 @@ static struct platform_driver xpcs_plat_driver = {
module_platform_driver(xpcs_plat_driver);
MODULE_DESCRIPTION("Synopsys DesignWare XPCS platform device driver");
-MODULE_AUTHOR("Signed-off-by: Serge Semin <fancer.lancer@gmail.com>");
+MODULE_AUTHOR("Serge Semin <fancer.lancer@gmail.com>");
MODULE_LICENSE("GPL");
diff --git a/drivers/net/pcs/pcs-xpcs.c b/drivers/net/pcs/pcs-xpcs.c
index 3d1bd5aac093..9679f2b35a44 100644
--- a/drivers/net/pcs/pcs-xpcs.c
+++ b/drivers/net/pcs/pcs-xpcs.c
@@ -37,6 +37,16 @@ static const int xpcs_10gkr_features[] = {
__ETHTOOL_LINK_MODE_MASK_NBITS,
};
+static const int xpcs_25gbaser_features[] = {
+ ETHTOOL_LINK_MODE_MII_BIT,
+ ETHTOOL_LINK_MODE_Pause_BIT,
+ ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+ ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
+ ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
+ ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
+ __ETHTOOL_LINK_MODE_MASK_NBITS,
+};
+
static const int xpcs_xlgmii_features[] = {
ETHTOOL_LINK_MODE_Pause_BIT,
ETHTOOL_LINK_MODE_Asym_Pause_BIT,
@@ -67,6 +77,40 @@ static const int xpcs_xlgmii_features[] = {
__ETHTOOL_LINK_MODE_MASK_NBITS,
};
+static const int xpcs_50gbaser_features[] = {
+ ETHTOOL_LINK_MODE_MII_BIT,
+ ETHTOOL_LINK_MODE_Pause_BIT,
+ ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+ ETHTOOL_LINK_MODE_50000baseKR_Full_BIT,
+ ETHTOOL_LINK_MODE_50000baseSR_Full_BIT,
+ ETHTOOL_LINK_MODE_50000baseCR_Full_BIT,
+ ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT,
+ ETHTOOL_LINK_MODE_50000baseDR_Full_BIT,
+ __ETHTOOL_LINK_MODE_MASK_NBITS,
+};
+
+static const int xpcs_50gbaser2_features[] = {
+ ETHTOOL_LINK_MODE_MII_BIT,
+ ETHTOOL_LINK_MODE_Pause_BIT,
+ ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+ ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT,
+ ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT,
+ ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT,
+ __ETHTOOL_LINK_MODE_MASK_NBITS,
+};
+
+static const int xpcs_100gbasep_features[] = {
+ ETHTOOL_LINK_MODE_MII_BIT,
+ ETHTOOL_LINK_MODE_Pause_BIT,
+ ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+ ETHTOOL_LINK_MODE_100000baseKR2_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseSR2_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseCR2_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseLR2_ER2_FR2_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseDR2_Full_BIT,
+ __ETHTOOL_LINK_MODE_MASK_NBITS,
+};
+
static const int xpcs_10gbaser_features[] = {
ETHTOOL_LINK_MODE_Pause_BIT,
ETHTOOL_LINK_MODE_Asym_Pause_BIT,
@@ -523,9 +567,57 @@ static int xpcs_get_max_xlgmii_speed(struct dw_xpcs *xpcs,
return speed;
}
-static void xpcs_resolve_pma(struct dw_xpcs *xpcs,
- struct phylink_link_state *state)
+static int xpcs_c45_read_pcs_speed(struct dw_xpcs *xpcs,
+ struct phylink_link_state *state)
{
+ int pcs_ctrl1;
+
+ pcs_ctrl1 = xpcs_read(xpcs, MDIO_MMD_PCS, MDIO_CTRL1);
+ if (pcs_ctrl1 < 0)
+ return pcs_ctrl1;
+
+ switch (pcs_ctrl1 & MDIO_CTRL1_SPEEDSEL) {
+ case MDIO_PCS_CTRL1_SPEED25G:
+ state->speed = SPEED_25000;
+ break;
+ case MDIO_PCS_CTRL1_SPEED50G:
+ state->speed = SPEED_50000;
+ break;
+ case MDIO_PCS_CTRL1_SPEED100G:
+ state->speed = SPEED_100000;
+ break;
+ default:
+ state->speed = SPEED_UNKNOWN;
+ break;
+ }
+
+ return 0;
+}
+
+static int xpcs_resolve_pma(struct dw_xpcs *xpcs,
+ struct phylink_link_state *state)
+{
+ int pmd_rxdet, err = 0;
+
+ /* The Meta Platforms FBNIC PMD will go into a training state for
+ * about 4 seconds when the link first comes up. During this time the
+ * PCS link will bounce. To avoid reporting link up too soon we include
+ * the PMD state provided by the driver.
+ */
+ if (xpcs->info.pma == MP_FBNIC_XPCS_PMA_100G_ID) {
+ pmd_rxdet = xpcs_read(xpcs, MDIO_MMD_PMAPMD, MDIO_PMA_RXDET);
+ if (pmd_rxdet < 0) {
+ state->link = false;
+ return pmd_rxdet;
+ }
+
+ /* Verify Rx lanes are trained before reporting link up */
+ if (!(pmd_rxdet & MDIO_PMD_RXDET_GLOBAL)) {
+ state->link = false;
+ return 0;
+ }
+ }
+
state->pause = MLO_PAUSE_TX | MLO_PAUSE_RX;
state->duplex = DUPLEX_FULL;
@@ -536,10 +628,18 @@ static void xpcs_resolve_pma(struct dw_xpcs *xpcs,
case PHY_INTERFACE_MODE_XLGMII:
state->speed = xpcs_get_max_xlgmii_speed(xpcs, state);
break;
+ case PHY_INTERFACE_MODE_100GBASEP:
+ case PHY_INTERFACE_MODE_LAUI:
+ case PHY_INTERFACE_MODE_50GBASER:
+ case PHY_INTERFACE_MODE_25GBASER:
+ err = xpcs_c45_read_pcs_speed(xpcs, state);
+ break;
default:
state->speed = SPEED_UNKNOWN;
break;
}
+
+ return err;
}
static int xpcs_validate(struct phylink_pcs *pcs, unsigned long *supported,
@@ -945,10 +1045,10 @@ static int xpcs_get_state_c73(struct dw_xpcs *xpcs,
phylink_resolve_c73(state);
} else {
- xpcs_resolve_pma(xpcs, state);
+ ret = xpcs_resolve_pma(xpcs, state);
}
- return 0;
+ return ret;
}
static int xpcs_get_state_c37_sgmii(struct dw_xpcs *xpcs,
@@ -1284,17 +1384,16 @@ static int xpcs_read_ids(struct dw_xpcs *xpcs)
if (ret < 0)
return ret;
- id = ret;
+ id = ret << 16;
ret = xpcs_read(xpcs, MDIO_MMD_PMAPMD, MDIO_DEVID2);
if (ret < 0)
return ret;
- /* Note the inverted dword order and masked out Model/Revision numbers
- * with respect to what is done with the PCS ID...
+ /* For now we only record the OUI for the PMAPMD, we may want to
+ * add the model number at some point in the future.
*/
- ret = (ret >> 10) & 0x3F;
- id |= ret << 16;
+ id |= ret & MDIO_DEVID2_OUI;
/* Set the PMA ID if it hasn't been pre-initialized */
if (xpcs->info.pma == DW_XPCS_PMA_ID_NATIVE)
@@ -1313,10 +1412,26 @@ static const struct dw_xpcs_compat synopsys_xpcs_compat[] = {
.supported = xpcs_10gkr_features,
.an_mode = DW_AN_C73,
}, {
+ .interface = PHY_INTERFACE_MODE_25GBASER,
+ .supported = xpcs_25gbaser_features,
+ .an_mode = DW_AN_C73,
+ }, {
.interface = PHY_INTERFACE_MODE_XLGMII,
.supported = xpcs_xlgmii_features,
.an_mode = DW_AN_C73,
}, {
+ .interface = PHY_INTERFACE_MODE_50GBASER,
+ .supported = xpcs_50gbaser_features,
+ .an_mode = DW_AN_C73,
+ }, {
+ .interface = PHY_INTERFACE_MODE_LAUI,
+ .supported = xpcs_50gbaser2_features,
+ .an_mode = DW_AN_C73,
+ }, {
+ .interface = PHY_INTERFACE_MODE_100GBASEP,
+ .supported = xpcs_100gbasep_features,
+ .an_mode = DW_AN_C73,
+ }, {
.interface = PHY_INTERFACE_MODE_10GBASER,
.supported = xpcs_10gbaser_features,
.an_mode = DW_10GBASER,
@@ -1495,7 +1610,8 @@ static struct dw_xpcs *xpcs_create(struct mdio_device *mdiodev)
xpcs_get_interfaces(xpcs, xpcs->pcs.supported_interfaces);
- if (xpcs->info.pma == WX_TXGBE_XPCS_PMA_10G_ID)
+ if (xpcs->info.pma == WX_TXGBE_XPCS_PMA_10G_ID ||
+ xpcs->info.pma == MP_FBNIC_XPCS_PMA_100G_ID)
xpcs->pcs.poll = false;
else
xpcs->need_reset = true;
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-04 13:11:31 +0000