Merge branch 'sfc-support-25G-configuration-with-ethtool'

Edward Cree says:

====================
sfc: support 25G configuration with ethtool

Adds support for advertise bits beyond the 32-bit legacy masks, and plumbs in
 translation of the new 25/50/100G bits to/from MCDI.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/sfc/efx.c

@@ -953,31 +953,42 @@ void efx_link_status_changed(struct efx_nic *efx)
 		netif_info(efx, link, efx->net_dev, "link down\n");
 }
 
-void efx_link_set_advertising(struct efx_nic *efx, u32 advertising)
+void efx_link_set_advertising(struct efx_nic *efx,
+			      const unsigned long *advertising)
 {
-	efx->link_advertising = advertising;
-	if (advertising) {
-		if (advertising & ADVERTISED_Pause)
-			efx->wanted_fc |= (EFX_FC_TX | EFX_FC_RX);
-		else
-			efx->wanted_fc &= ~(EFX_FC_TX | EFX_FC_RX);
-		if (advertising & ADVERTISED_Asym_Pause)
-			efx->wanted_fc ^= EFX_FC_TX;
-	}
+	memcpy(efx->link_advertising, advertising,
+	       sizeof(__ETHTOOL_DECLARE_LINK_MODE_MASK()));
+
+	efx->link_advertising[0] |= ADVERTISED_Autoneg;
+	if (advertising[0] & ADVERTISED_Pause)
+		efx->wanted_fc |= (EFX_FC_TX | EFX_FC_RX);
+	else
+		efx->wanted_fc &= ~(EFX_FC_TX | EFX_FC_RX);
+	if (advertising[0] & ADVERTISED_Asym_Pause)
+		efx->wanted_fc ^= EFX_FC_TX;
+}
+
+/* Equivalent to efx_link_set_advertising with all-zeroes, except does not
+ * force the Autoneg bit on.
+ */
+void efx_link_clear_advertising(struct efx_nic *efx)
+{
+	bitmap_zero(efx->link_advertising, __ETHTOOL_LINK_MODE_MASK_NBITS);
+	efx->wanted_fc &= ~(EFX_FC_TX | EFX_FC_RX);
 }
 
 void efx_link_set_wanted_fc(struct efx_nic *efx, u8 wanted_fc)
 {
 	efx->wanted_fc = wanted_fc;
-	if (efx->link_advertising) {
+	if (efx->link_advertising[0]) {
 		if (wanted_fc & EFX_FC_RX)
-			efx->link_advertising |= (ADVERTISED_Pause |
-						  ADVERTISED_Asym_Pause);
+			efx->link_advertising[0] |= (ADVERTISED_Pause |
+						     ADVERTISED_Asym_Pause);
 		else
-			efx->link_advertising &= ~(ADVERTISED_Pause |
-						   ADVERTISED_Asym_Pause);
+			efx->link_advertising[0] &= ~(ADVERTISED_Pause |
+						      ADVERTISED_Asym_Pause);
 		if (wanted_fc & EFX_FC_TX)
-			efx->link_advertising ^= ADVERTISED_Asym_Pause;
+			efx->link_advertising[0] ^= ADVERTISED_Asym_Pause;
 	}
 }
 

drivers/net/ethernet/sfc/efx.h

@@ -258,7 +258,9 @@ static inline void efx_schedule_channel_irq(struct efx_channel *channel)
 }
 
 void efx_link_status_changed(struct efx_nic *efx);
-void efx_link_set_advertising(struct efx_nic *efx, u32);
+void efx_link_set_advertising(struct efx_nic *efx,
+			      const unsigned long *advertising);
+void efx_link_clear_advertising(struct efx_nic *efx);
 void efx_link_set_wanted_fc(struct efx_nic *efx, u8);
 
 static inline void efx_device_detach_sync(struct efx_nic *efx)

drivers/net/ethernet/sfc/ethtool.c

@@ -720,7 +720,7 @@ static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
 		goto out;
 	}
 
-	if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
+	if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) {
 		netif_dbg(efx, drv, efx->net_dev,
 			  "Autonegotiation is disabled\n");
 		rc = -EINVAL;
@@ -732,10 +732,10 @@ static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
 	    (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
 		efx->type->prepare_enable_fc_tx(efx);
 
-	old_adv = efx->link_advertising;
+	old_adv = efx->link_advertising[0];
 	old_fc = efx->wanted_fc;
 	efx_link_set_wanted_fc(efx, wanted_fc);
-	if (efx->link_advertising != old_adv ||
+	if (efx->link_advertising[0] != old_adv ||
 	    (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
 		rc = efx->phy_op->reconfigure(efx);
 		if (rc) {

drivers/net/ethernet/sfc/net_driver.h

@@ -937,7 +937,7 @@ struct efx_nic {
 	unsigned int mdio_bus;
 	enum efx_phy_mode phy_mode;
 
-	u32 link_advertising;
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(link_advertising);
 	struct efx_link_state link_state;
 	unsigned int n_link_state_changes;