qed/qede: Add GENEVE tunnel slowpath configuration support

This patch enables GENEVE tunnel on the adapter and
add support for driver hooks to configure UDP ports
for GENEVE tunnel offload to be performed by the adapter.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 53 insertions, 0 deletions

diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 895016d9f7e3..6c40316f1e70 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -27,6 +27,9 @@
 #ifdef CONFIG_QEDE_VXLAN
 #include <net/vxlan.h>
 #endif
+#ifdef CONFIG_QEDE_GENEVE
+#include <net/geneve.h>
+#endif
 #include <linux/ip.h>
 #include <net/ipv6.h>
 #include <net/tcp.h>
@@ -1859,6 +1862,40 @@ static void qede_del_vxlan_port(struct net_device *dev,
 }
 #endif
 
+#ifdef CONFIG_QEDE_GENEVE
+static void qede_add_geneve_port(struct net_device *dev,
+				 sa_family_t sa_family, __be16 port)
+{
+	struct qede_dev *edev = netdev_priv(dev);
+	u16 t_port = ntohs(port);
+
+	if (edev->geneve_dst_port)
+		return;
+
+	edev->geneve_dst_port = t_port;
+
+	DP_VERBOSE(edev, QED_MSG_DEBUG, "Added geneve port=%d", t_port);
+	set_bit(QEDE_SP_GENEVE_PORT_CONFIG, &edev->sp_flags);
+	schedule_delayed_work(&edev->sp_task, 0);
+}
+
+static void qede_del_geneve_port(struct net_device *dev,
+				 sa_family_t sa_family, __be16 port)
+{
+	struct qede_dev *edev = netdev_priv(dev);
+	u16 t_port = ntohs(port);
+
+	if (t_port != edev->geneve_dst_port)
+		return;
+
+	edev->geneve_dst_port = 0;
+
+	DP_VERBOSE(edev, QED_MSG_DEBUG, "Deleted geneve port=%d", t_port);
+	set_bit(QEDE_SP_GENEVE_PORT_CONFIG, &edev->sp_flags);
+	schedule_delayed_work(&edev->sp_task, 0);
+}
+#endif
+
 static const struct net_device_ops qede_netdev_ops = {
 	.ndo_open = qede_open,
 	.ndo_stop = qede_close,
@@ -1874,6 +1911,10 @@ static const struct net_device_ops qede_netdev_ops = {
 	.ndo_add_vxlan_port = qede_add_vxlan_port,
 	.ndo_del_vxlan_port = qede_del_vxlan_port,
 #endif
+#ifdef CONFIG_QEDE_GENEVE
+	.ndo_add_geneve_port = qede_add_geneve_port,
+	.ndo_del_geneve_port = qede_del_geneve_port,
+#endif
 };
 
 /* -------------------------------------------------------------------------
@@ -2064,6 +2105,15 @@ static void qede_sp_task(struct work_struct *work)
 		qed_ops->tunn_config(cdev, &tunn_params);
 	}
 
+	if (test_and_clear_bit(QEDE_SP_GENEVE_PORT_CONFIG, &edev->sp_flags)) {
+		struct qed_tunn_params tunn_params;
+
+		memset(&tunn_params, 0, sizeof(tunn_params));
+		tunn_params.update_geneve_port = 1;
+		tunn_params.geneve_port = edev->geneve_dst_port;
+		qed_ops->tunn_config(cdev, &tunn_params);
+	}
+
 	mutex_unlock(&edev->qede_lock);
 }
 
@@ -3216,6 +3266,9 @@ static int qede_open(struct net_device *ndev)
 #ifdef CONFIG_QEDE_VXLAN
 	vxlan_get_rx_port(ndev);
 #endif
+#ifdef CONFIG_QEDE_GENEVE
+	geneve_get_rx_port(ndev);
+#endif
 	return 0;
 }