[dpdk-dev] [RFC 1/3] ethdev: add packet filter flow and new behavior switch to fdir
Rahul Lakkireddy
rahul.lakkireddy at chelsio.com
Thu Dec 10 15:01:02 CET 2015
Add a new packet filter flow that allows filtering a packet based on
matching ingress port, ethertype, vlan, ip, and tcp/udp fields, i.e.
matching based on any or all fields at the same time.
Add the ability to provide masks for fields in flow to allow range of
values.
Add a new vlan flow containing inner and outer vlan to match. Add tos
and proto fields that can be matched for ipv4_flow.
Add a new behavior switch.
Add the ability to provide behavior arguments to allow insert/deletion
of matched fields in the flow. Useful when rewriting matched fields
with new values. Adds arguments for port, mac, vlan, and nat.
Ex: allows to provide new ip and port addresses to rewrite the fields
of packets matching a filter rule before NAT'ing.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy at chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras at chelsio.com>
---
lib/librte_ether/rte_eth_ctrl.h | 112 +++++++++++++++++++++++++++++++++++++++-
1 file changed, 111 insertions(+), 1 deletion(-)
diff --git a/lib/librte_ether/rte_eth_ctrl.h b/lib/librte_ether/rte_eth_ctrl.h
index ce224ad..a2e770c 100644
--- a/lib/librte_ether/rte_eth_ctrl.h
+++ b/lib/librte_ether/rte_eth_ctrl.h
@@ -74,7 +74,11 @@ extern "C" {
#define RTE_ETH_FLOW_IPV6_EX 15
#define RTE_ETH_FLOW_IPV6_TCP_EX 16
#define RTE_ETH_FLOW_IPV6_UDP_EX 17
-#define RTE_ETH_FLOW_MAX 18
+#define RTE_ETH_FLOW_PKT_FILTER_IPV4_TCP 18
+#define RTE_ETH_FLOW_PKT_FILTER_IPV4_UDP 19
+#define RTE_ETH_FLOW_PKT_FILTER_IPV6_TCP 20
+#define RTE_ETH_FLOW_PKT_FILTER_IPV6_UDP 21
+#define RTE_ETH_FLOW_MAX 22
/**
* Feature filter types
@@ -407,6 +411,8 @@ struct rte_eth_l2_flow {
struct rte_eth_ipv4_flow {
uint32_t src_ip; /**< IPv4 source address to match. */
uint32_t dst_ip; /**< IPv4 destination address to match. */
+ uint8_t tos; /**< IPV4 type of service to match. */
+ uint8_t proto; /**< IPV4 proto to match. */
};
/**
@@ -500,6 +506,43 @@ struct rte_eth_tunnel_flow {
};
/**
+ * A structure used to define the input for vlan flow.
+ */
+struct rte_eth_vlan_flow {
+ uint16_t inner_vlan; /**< Inner vlan field to match. */
+ uint16_t outer_vlan; /**< Outer vlan field to match. */
+};
+
+/**
+ * A union used to define the input for N-Tuple flow
+ */
+union rte_eth_ntuple_flow {
+ struct rte_eth_tcpv4_flow tcp4;
+ struct rte_eth_udpv4_flow udp4;
+ struct rte_eth_tcpv6_flow tcp6;
+ struct rte_eth_udpv6_flow udp6;
+};
+
+/**
+ * A structure used to define the input for packet filter.
+ */
+struct rte_eth_pkt_filter {
+ uint8_t port_id; /**< Port id to match. */
+ struct rte_eth_l2_flow l2_flow; /**< L2 flow fields to match. */
+ struct rte_eth_vlan_flow vlan_flow; /**< Vlan flow fields to match. */
+ union rte_eth_ntuple_flow ntuple_flow;
+ /**< N-tuple flow fields to match. */
+};
+
+/**
+ * A structure used to define the input for packet filter flow.
+ */
+struct rte_eth_pkt_filter_flow {
+ struct rte_eth_pkt_filter pkt; /**< Packet fields to match. */
+ struct rte_eth_pkt_filter mask; /**< Mask for matched fields. */
+};
+
+/**
* An union contains the inputs for all types of flow
*/
union rte_eth_fdir_flow {
@@ -514,6 +557,7 @@ union rte_eth_fdir_flow {
struct rte_eth_ipv6_flow ipv6_flow;
struct rte_eth_mac_vlan_flow mac_vlan_flow;
struct rte_eth_tunnel_flow tunnel_flow;
+ struct rte_eth_pkt_filter_flow pkt_filter_flow;
};
/**
@@ -545,6 +589,7 @@ enum rte_eth_fdir_behavior {
RTE_ETH_FDIR_ACCEPT = 0,
RTE_ETH_FDIR_REJECT,
RTE_ETH_FDIR_PASSTHRU,
+ RTE_ETH_FDIR_SWITCH,
};
/**
@@ -559,6 +604,69 @@ enum rte_eth_fdir_status {
};
/**
+ * Behavior sub operations on fields in matched flows.
+ */
+enum rte_eth_fdir_behavior_sub_op {
+ RTE_FDIR_BEHAVIOR_SUB_OP_UNKNOWN = 0,
+ RTE_FDIR_BEHAVIOR_SUB_OP_INSERT,
+ /**< Add/rewrite fields in matched flows */
+ RTE_FDIR_BEHAVIOR_SUB_OP_DELETE,
+ /**< Delete/reset fields in matched flows */
+};
+
+/**
+ * A structure used to define the input for passing port arguments for
+ * behavior taken.
+ */
+struct rte_eth_behavior_arg_port {
+ enum rte_eth_fdir_behavior_sub_op op; /**< Sub operation to do */
+ uint8_t port_id; /**< Physical port to redirect */
+};
+
+/**
+ * A structure used to define the input for passing mac arguments for
+ * behavior taken.
+ */
+struct rte_eth_behavior_arg_mac {
+ enum rte_eth_fdir_behavior_sub_op op; /**< Sub operation to do */
+ struct ether_addr src_mac; /**< SRC Ethernet Address to rewirte. */
+ struct ether_addr dst_mac; /**< DST Ethernet Address to rewrite. */
+};
+
+/**
+ * A structure used to define the input for passing vlan arguments for
+ * behavior taken.
+ */
+struct rte_eth_behavior_arg_vlan {
+ enum rte_eth_fdir_behavior_sub_op op; /**< Sub operation to do */
+ uint16_t vlan_tci; /**< New vlan fields to rewrite matched ones */
+};
+
+/**
+ * A structure used to define the input for passing Network Address
+ * Translation (NAT) arguments for behavior taken.
+ */
+struct rte_eth_behavior_arg_nat {
+ enum rte_eth_fdir_behavior_sub_op op; /**< Sub operation to do */
+ union rte_eth_ntuple_flow nat;
+ /**< New NAT fields to rewrite matched ones */
+};
+
+/**
+ * Extra arguments to pass for a behavior taken.
+ */
+struct rte_eth_fdir_behavior_arg {
+ struct rte_eth_behavior_arg_port port_arg;
+ /**< Extra port arg to pass */
+ struct rte_eth_behavior_arg_mac mac_arg;
+ /**< Extra mac arg to pass */
+ struct rte_eth_behavior_arg_vlan vlan_arg;
+ /**< Extra vlan arg to pass */
+ struct rte_eth_behavior_arg_nat nat_arg;
+ /**< Extra NAT arg to pass */
+};
+
+/**
* A structure used to define an action when match FDIR packet filter.
*/
struct rte_eth_fdir_action {
@@ -569,6 +677,8 @@ struct rte_eth_fdir_action {
/**< If report_status is RTE_ETH_FDIR_REPORT_ID_FLEX_4 or
RTE_ETH_FDIR_REPORT_FLEX_8, flex_off specifies where the reported
flex bytes start from in flexible payload. */
+ struct rte_eth_fdir_behavior_arg behavior_arg;
+ /**< Extra arguments for behavior taken */
};
/**
--
2.5.3
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