ice: ndo_setup_tc implementation for PF
Implement ndo_setup_tc net device callback for TC HW offload on PF device.
ndo_setup_tc provides support for HW offloading various TC filters.
Add support for configuring the following filter with tc-flower:
- default L2 filters (src/dst mac addresses, ethertype, VLAN)
- variations of L3, L3+L4, L2+L3+L4 filters using advanced filters
(including ipv4 and ipv6 addresses).
Allow for adding/removing TC flows when PF device is configured in
eswitch switchdev mode. Two types of actions are supported at the
moment: FLOW_ACTION_DROP and FLOW_ACTION_REDIRECT.
Co-developed-by: Priyalee Kushwaha <priyalee.kushwaha@intel.com>
Signed-off-by: Priyalee Kushwaha <priyalee.kushwaha@intel.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index b3066cf..ceb0912 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -20,6 +20,7 @@
#define CREATE_TRACE_POINTS
#include "ice_trace.h"
#include "ice_eswitch.h"
+#include "ice_tc_lib.h"
#define DRV_SUMMARY "Intel(R) Ethernet Connection E800 Series Linux Driver"
static const char ice_driver_string[] = DRV_SUMMARY;
@@ -3107,6 +3108,9 @@ static void ice_set_netdev_features(struct net_device *netdev)
/* enable features */
netdev->features |= netdev->hw_features;
+
+ netdev->hw_features |= NETIF_F_HW_TC;
+
/* encap and VLAN devices inherit default, csumo and tso features */
netdev->hw_enc_features |= dflt_features | csumo_features |
tso_features;
@@ -7070,6 +7074,72 @@ static void ice_tx_timeout(struct net_device *netdev, unsigned int txqueue)
}
/**
+ * ice_setup_tc_cls_flower - flower classifier offloads
+ * @np: net device to configure
+ * @filter_dev: device on which filter is added
+ * @cls_flower: offload data
+ */
+static int
+ice_setup_tc_cls_flower(struct ice_netdev_priv *np,
+ struct net_device *filter_dev,
+ struct flow_cls_offload *cls_flower)
+{
+ struct ice_vsi *vsi = np->vsi;
+
+ if (cls_flower->common.chain_index)
+ return -EOPNOTSUPP;
+
+ switch (cls_flower->command) {
+ case FLOW_CLS_REPLACE:
+ return ice_add_cls_flower(filter_dev, vsi, cls_flower);
+ case FLOW_CLS_DESTROY:
+ return ice_del_cls_flower(vsi, cls_flower);
+ default:
+ return -EINVAL;
+ }
+}
+
+/**
+ * ice_setup_tc_block_cb - callback handler registered for TC block
+ * @type: TC SETUP type
+ * @type_data: TC flower offload data that contains user input
+ * @cb_priv: netdev private data
+ */
+static int
+ice_setup_tc_block_cb(enum tc_setup_type type, void *type_data, void *cb_priv)
+{
+ struct ice_netdev_priv *np = cb_priv;
+
+ switch (type) {
+ case TC_SETUP_CLSFLOWER:
+ return ice_setup_tc_cls_flower(np, np->vsi->netdev,
+ type_data);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static LIST_HEAD(ice_block_cb_list);
+
+static int
+ice_setup_tc(struct net_device *netdev, enum tc_setup_type type,
+ void *type_data)
+{
+ struct ice_netdev_priv *np = netdev_priv(netdev);
+
+ switch (type) {
+ case TC_SETUP_BLOCK:
+ return flow_block_cb_setup_simple(type_data,
+ &ice_block_cb_list,
+ ice_setup_tc_block_cb,
+ np, np, true);
+ default:
+ return -EOPNOTSUPP;
+ }
+ return -EOPNOTSUPP;
+}
+
+/**
* ice_open - Called when a network interface becomes active
* @netdev: network interface device structure
*
@@ -7273,6 +7343,7 @@ static const struct net_device_ops ice_netdev_ops = {
.ndo_get_vf_stats = ice_get_vf_stats,
.ndo_vlan_rx_add_vid = ice_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = ice_vlan_rx_kill_vid,
+ .ndo_setup_tc = ice_setup_tc,
.ndo_set_features = ice_set_features,
.ndo_bridge_getlink = ice_bridge_getlink,
.ndo_bridge_setlink = ice_bridge_setlink,
