qed: add support for link pause configuration.

The APIs for making this sort of configuration [e.g., via ethtool] are
already present in qede, but the current configuration flow in qed doesn't
respect it.
Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/qed/qed_main.c

@@ -962,6 +962,20 @@ static int qed_set_link(struct qed_dev *cdev,
 	}
 	if (params->override_flags & QED_LINK_OVERRIDE_SPEED_FORCED_SPEED)
 		link_params->speed.forced_speed = params->forced_speed;
+	if (params->override_flags & QED_LINK_OVERRIDE_PAUSE_CONFIG) {
+		if (params->pause_config & QED_LINK_PAUSE_AUTONEG_ENABLE)
+			link_params->pause.autoneg = true;
+		else
+			link_params->pause.autoneg = false;
+		if (params->pause_config & QED_LINK_PAUSE_RX_ENABLE)
+			link_params->pause.forced_rx = true;
+		else
+			link_params->pause.forced_rx = false;
+		if (params->pause_config & QED_LINK_PAUSE_TX_ENABLE)
+			link_params->pause.forced_tx = true;
+		else
+			link_params->pause.forced_tx = false;
+	}
 
 	rc = qed_mcp_set_link(hwfn, ptt, params->link_up);