}
/**
- * fm10k_del_vxlan_port_all
+ * fm10k_free_udp_port_info
* @interface: board private structure
*
- * This function frees the entire vxlan_port list
+ * This function frees both geneve_port and vxlan_port structures
**/
-static void fm10k_del_vxlan_port_all(struct fm10k_intfc *interface)
+static void fm10k_free_udp_port_info(struct fm10k_intfc *interface)
{
- struct fm10k_vxlan_port *vxlan_port;
-
- /* flush all entries from list */
- vxlan_port = list_first_entry_or_null(&interface->vxlan_port,
- struct fm10k_vxlan_port, list);
- while (vxlan_port) {
- list_del(&vxlan_port->list);
- kfree(vxlan_port);
- vxlan_port = list_first_entry_or_null(&interface->vxlan_port,
- struct fm10k_vxlan_port,
- list);
+ struct fm10k_udp_port *port;
+
+ /* flush all entries from vxlan list */
+ port = list_first_entry_or_null(&interface->vxlan_port,
+ struct fm10k_udp_port, list);
+ while (port) {
+ list_del(&port->list);
+ kfree(port);
+ port = list_first_entry_or_null(&interface->vxlan_port,
+ struct fm10k_udp_port,
+ list);
+ }
+
+ /* flush all entries from geneve list */
+ port = list_first_entry_or_null(&interface->geneve_port,
+ struct fm10k_udp_port, list);
+ while (port) {
+ list_del(&port->list);
+ kfree(port);
+ port = list_first_entry_or_null(&interface->vxlan_port,
+ struct fm10k_udp_port,
+ list);
}
}
/**
- * fm10k_restore_vxlan_port
+ * fm10k_restore_udp_port_info
* @interface: board private structure
*
- * This function restores the value in the tunnel_cfg register after reset
+ * This function restores the value in the tunnel_cfg register(s) after reset
**/
-static void fm10k_restore_vxlan_port(struct fm10k_intfc *interface)
+static void fm10k_restore_udp_port_info(struct fm10k_intfc *interface)
{
struct fm10k_hw *hw = &interface->hw;
- struct fm10k_vxlan_port *vxlan_port;
+ struct fm10k_udp_port *port;
/* only the PF supports configuring tunnels */
if (hw->mac.type != fm10k_mac_pf)
return;
- vxlan_port = list_first_entry_or_null(&interface->vxlan_port,
- struct fm10k_vxlan_port, list);
+ port = list_first_entry_or_null(&interface->vxlan_port,
+ struct fm10k_udp_port, list);
/* restore tunnel configuration register */
fm10k_write_reg(hw, FM10K_TUNNEL_CFG,
- (vxlan_port ? ntohs(vxlan_port->port) : 0) |
+ (port ? ntohs(port->port) : 0) |
(ETH_P_TEB << FM10K_TUNNEL_CFG_NVGRE_SHIFT));
+
+ port = list_first_entry_or_null(&interface->geneve_port,
+ struct fm10k_udp_port, list);
+
+ /* restore Geneve tunnel configuration register */
+ fm10k_write_reg(hw, FM10K_TUNNEL_CFG_GENEVE,
+ (port ? ntohs(port->port) : 0));
+}
+
+static struct fm10k_udp_port *
+fm10k_remove_tunnel_port(struct list_head *ports,
+ struct udp_tunnel_info *ti)
+{
+ struct fm10k_udp_port *port;
+
+ list_for_each_entry(port, ports, list) {
+ if ((port->port == ti->port) &&
+ (port->sa_family == ti->sa_family)) {
+ list_del(&port->list);
+ return port;
+ }
+ }
+
+ return NULL;
+}
+
+static void fm10k_insert_tunnel_port(struct list_head *ports,
+ struct udp_tunnel_info *ti)
+{
+ struct fm10k_udp_port *port;
+
+ /* remove existing port entry from the list so that the newest items
+ * are always at the tail of the list.
+ */
+ port = fm10k_remove_tunnel_port(ports, ti);
+ if (!port) {
+ port = kmalloc(sizeof(*port), GFP_ATOMIC);
+ if (!port)
+ return;
+ port->port = ti->port;
+ port->sa_family = ti->sa_family;
+ }
+
+ list_add_tail(&port->list, ports);
}
/**
- * fm10k_add_vxlan_port
+ * fm10k_udp_tunnel_add
* @netdev: network interface device structure
* @ti: Tunnel endpoint information
*
- * This function is called when a new VXLAN interface has added a new port
- * number to the range that is currently in use for VXLAN. The new port
- * number is always added to the tail so that the port number list should
- * match the order in which the ports were allocated. The head of the list
- * is always used as the VXLAN port number for offloads.
+ * This function is called when a new UDP tunnel port has been added.
+ * Due to hardware restrictions, only one port per type can be offloaded at
+ * once.
**/
-static void fm10k_add_vxlan_port(struct net_device *dev,
+static void fm10k_udp_tunnel_add(struct net_device *dev,
struct udp_tunnel_info *ti)
{
struct fm10k_intfc *interface = netdev_priv(dev);
- struct fm10k_vxlan_port *vxlan_port;
- if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
- return;
/* only the PF supports configuring tunnels */
if (interface->hw.mac.type != fm10k_mac_pf)
return;
- /* existing ports are pulled out so our new entry is always last */
- fm10k_vxlan_port_for_each(vxlan_port, interface) {
- if ((vxlan_port->port == ti->port) &&
- (vxlan_port->sa_family == ti->sa_family)) {
- list_del(&vxlan_port->list);
- goto insert_tail;
- }
- }
-
- /* allocate memory to track ports */
- vxlan_port = kmalloc(sizeof(*vxlan_port), GFP_ATOMIC);
- if (!vxlan_port)
+ switch (ti->type) {
+ case UDP_TUNNEL_TYPE_VXLAN:
+ fm10k_insert_tunnel_port(&interface->vxlan_port, ti);
+ break;
+ case UDP_TUNNEL_TYPE_GENEVE:
+ fm10k_insert_tunnel_port(&interface->geneve_port, ti);
+ break;
+ default:
return;
- vxlan_port->port = ti->port;
- vxlan_port->sa_family = ti->sa_family;
-
-insert_tail:
- /* add new port value to list */
- list_add_tail(&vxlan_port->list, &interface->vxlan_port);
+ }
- fm10k_restore_vxlan_port(interface);
+ fm10k_restore_udp_port_info(interface);
}
/**
- * fm10k_del_vxlan_port
+ * fm10k_udp_tunnel_del
* @netdev: network interface device structure
* @ti: Tunnel endpoint information
*
- * This function is called when a new VXLAN interface has freed a port
- * number from the range that is currently in use for VXLAN. The freed
- * port is removed from the list and the new head is used to determine
- * the port number for offloads.
+ * This function is called when a new UDP tunnel port is deleted. The freed
+ * port will be removed from the list, then we reprogram the offloaded port
+ * based on the head of the list.
**/
-static void fm10k_del_vxlan_port(struct net_device *dev,
+static void fm10k_udp_tunnel_del(struct net_device *dev,
struct udp_tunnel_info *ti)
{
struct fm10k_intfc *interface = netdev_priv(dev);
- struct fm10k_vxlan_port *vxlan_port;
+ struct fm10k_udp_port *port = NULL;
- if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
- return;
if (interface->hw.mac.type != fm10k_mac_pf)
return;
- /* find the port in the list and free it */
- fm10k_vxlan_port_for_each(vxlan_port, interface) {
- if ((vxlan_port->port == ti->port) &&
- (vxlan_port->sa_family == ti->sa_family)) {
- list_del(&vxlan_port->list);
- kfree(vxlan_port);
- break;
- }
+ switch (ti->type) {
+ case UDP_TUNNEL_TYPE_VXLAN:
+ port = fm10k_remove_tunnel_port(&interface->vxlan_port, ti);
+ break;
+ case UDP_TUNNEL_TYPE_GENEVE:
+ port = fm10k_remove_tunnel_port(&interface->geneve_port, ti);
+ break;
+ default:
+ return;
}
- fm10k_restore_vxlan_port(interface);
+ /* if we did remove a port we need to free its memory */
+ kfree(port);
+
+ fm10k_restore_udp_port_info(interface);
}
/**
if (err)
goto err_set_queues;
- /* update VXLAN port configuration */
udp_tunnel_get_rx_info(netdev);
fm10k_up(interface);
fm10k_qv_free_irq(interface);
- fm10k_del_vxlan_port_all(interface);
+ fm10k_free_udp_port_info(interface);
fm10k_free_all_tx_resources(interface);
fm10k_free_all_rx_resources(interface);
interface->xcast_mode = xcast_mode;
/* Restore tunnel configuration */
- fm10k_restore_vxlan_port(interface);
+ fm10k_restore_udp_port_info(interface);
}
void fm10k_reset_rx_state(struct fm10k_intfc *interface)
rcu_read_lock();
for (i = 0; i < interface->num_rx_queues; i++) {
- ring = ACCESS_ONCE(interface->rx_ring[i]);
+ ring = READ_ONCE(interface->rx_ring[i]);
if (!ring)
continue;
}
for (i = 0; i < interface->num_tx_queues; i++) {
- ring = ACCESS_ONCE(interface->tx_ring[i]);
+ ring = READ_ONCE(interface->tx_ring[i]);
if (!ring)
continue;
static void fm10k_dfwd_del_station(struct net_device *dev, void *priv)
{
struct fm10k_intfc *interface = netdev_priv(dev);
- struct fm10k_l2_accel *l2_accel = ACCESS_ONCE(interface->l2_accel);
+ struct fm10k_l2_accel *l2_accel = READ_ONCE(interface->l2_accel);
struct fm10k_dglort_cfg dglort = { 0 };
struct fm10k_hw *hw = &interface->hw;
struct net_device *sdev = priv;
.ndo_set_vf_vlan = fm10k_ndo_set_vf_vlan,
.ndo_set_vf_rate = fm10k_ndo_set_vf_bw,
.ndo_get_vf_config = fm10k_ndo_get_vf_config,
- .ndo_udp_tunnel_add = fm10k_add_vxlan_port,
- .ndo_udp_tunnel_del = fm10k_del_vxlan_port,
+ .ndo_udp_tunnel_add = fm10k_udp_tunnel_add,
+ .ndo_udp_tunnel_del = fm10k_udp_tunnel_del,
.ndo_dfwd_add_station = fm10k_dfwd_add_station,
.ndo_dfwd_del_station = fm10k_dfwd_del_station,
#ifdef CONFIG_NET_POLL_CONTROLLER
projects / deliverable / linux.git / blobdiff