/*-
* BSD LICENSE
*
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#include <rte_port.h>
#include <rte_table.h>
+#include <rte_common.h>
struct rte_mbuf;
/** Number of packets dropped by lookup miss action handler. */
uint64_t n_pkts_dropped_by_lkp_miss_ah;
- /** Number of packets dropped by pipeline in behalf of this table based on
- * on action specified in table entry. */
+ /** Number of packets dropped by pipeline in behalf of this
+ * table based on action specified in table entry. */
uint64_t n_pkts_dropped_lkp_hit;
- /** Number of packets dropped by pipeline in behalf of this table based on
- * on action specified in table entry. */
+ /** Number of packets dropped by pipeline in behalf of this
+ * table based on action specified in table entry. */
uint64_t n_pkts_dropped_lkp_miss;
};
* @param p
* Handle to pipeline instance
* @return
- * 0 on success, error code otherwise
+ * Number of packets read and processed
*/
int rte_pipeline_run(struct rte_pipeline *p);
/** Reserved action */
enum rte_pipeline_action action;
+ RTE_STD_C11
union {
/** Output port ID (meta-data for "Send packet to output port"
action) */
uint32_t table_id;
};
/** Start of table entry area for user defined actions and meta-data */
- uint8_t action_data[0];
+ __extension__ uint8_t action_data[0];
};
/**
* required not to free the packet buffer, which will be freed eventually by
* the pipeline.
*
+ * @param p
+ * Handle to pipeline instance
* @param pkts
* Burst of input packets specified as array of up to 64 pointers to struct
* rte_mbuf
* 0 on success, error code otherwise
*/
typedef int (*rte_pipeline_table_action_handler_hit)(
+ struct rte_pipeline *p,
struct rte_mbuf **pkts,
- uint64_t *pkts_mask,
+ uint64_t pkts_mask,
struct rte_pipeline_table_entry **entries,
void *arg);
* required not to free the packet buffer, which will be freed eventually by
* the pipeline.
*
+ * @param p
+ * Handle to pipeline instance
* @param pkts
* Burst of input packets specified as array of up to 64 pointers to struct
* rte_mbuf
* 0 on success, error code otherwise
*/
typedef int (*rte_pipeline_table_action_handler_miss)(
+ struct rte_pipeline *p,
struct rte_mbuf **pkts,
- uint64_t *pkts_mask,
+ uint64_t pkts_mask,
struct rte_pipeline_table_entry *entry,
void *arg);
* required not to free the packet buffer, which will be freed eventually by
* the pipeline.
*
+ * @param p
+ * Handle to pipeline instance
* @param pkts
* Burst of input packets specified as array of up to 64 pointers to struct
* rte_mbuf
* @param n
* Number of packets in the input burst. This parameter specifies that
* elements 0 to (n-1) of pkts array are valid.
- * @param pkts_mask
- * 64-bit bitmask specifying which packets in the input burst are still valid
- * after the action handler is executed. When pkts_mask bit n is set, then
- * element n of pkts array is pointing to a valid packet.
* @param arg
* Opaque parameter registered by the user at the pipeline table creation
* time
* 0 on success, error code otherwise
*/
typedef int (*rte_pipeline_port_in_action_handler)(
+ struct rte_pipeline *p,
struct rte_mbuf **pkts,
uint32_t n,
- uint64_t *pkts_mask,
void *arg);
/** Parameters for pipeline input port creation */
#define RTE_PIPELINE_PORT_OUT_MAX 64
/**
- * Pipeline output port action handler for single packet
- *
- * The action handler can decide to drop packets by resetting the pkt_mask
- * argument. In this case, the action handler is required not to free the
- * packet buffer, which will be freed eventually by the pipeline.
- *
- * @param pkt
- * Input packet
- * @param pkt_mask
- * Output argument set to 0 when the action handler decides to drop the input
- * packet and to 1LLU otherwise
- * @param arg
- * Opaque parameter registered by the user at the pipeline table creation
- * time
- * @return
- * 0 on success, error code otherwise
- */
-typedef int (*rte_pipeline_port_out_action_handler)(
- struct rte_mbuf *pkt,
- uint64_t *pkt_mask,
- void *arg);
-
-/**
- * Pipeline output port action handler bulk
+ * Pipeline output port action handler
*
* The action handler can decide to drop packets by resetting the associated
* packet bit in the pkts_mask parameter. In this case, the action handler is
* required not to free the packet buffer, which will be freed eventually by
* the pipeline.
*
+ * @param p
+ * Handle to pipeline instance
* @param pkts
* Burst of input packets specified as array of up to 64 pointers to struct
* rte_mbuf
* @return
* 0 on success, error code otherwise
*/
-typedef int (*rte_pipeline_port_out_action_handler_bulk)(
+typedef int (*rte_pipeline_port_out_action_handler)(
+ struct rte_pipeline *p,
struct rte_mbuf **pkts,
- uint64_t *pkts_mask,
+ uint64_t pkts_mask,
void *arg);
/** Parameters for pipeline output port creation. The action handlers have to
/** Opaque parameter to be passed to create operation when invoked */
void *arg_create;
- /** Callback function executing the user actions on single input
- packet */
- rte_pipeline_port_out_action_handler f_action;
/** Callback function executing the user actions on bust of input
packets */
- rte_pipeline_port_out_action_handler_bulk f_action_bulk;
+ rte_pipeline_port_out_action_handler f_action;
/** Opaque parameter to be passed to the action handler when invoked */
void *arg_ah;
};
uint32_t *port_id);
/**
- * Pipeline output port packet insert
+ * Read pipeline port out stats.
+ *
+ * This function reads port out statistics identified by *port_id* of given
+ * pipeline *p*.
+ *
+ * @param p
+ * Handle to pipeline instance.
+ * @param port_id
+ * Port ID what stats will be returned.
+ * @param stats
+ * Statistics buffer.
+ * @param clear
+ * If not 0 clear stats after reading.
+ * @return
+ * 0 on success, error code otherwise
+ */
+int rte_pipeline_port_out_stats_read(struct rte_pipeline *p, uint32_t port_id,
+ struct rte_pipeline_port_out_stats *stats, int clear);
+
+/*
+ * Functions to be called as part of the port IN/OUT or table action handlers
+ *
+ */
+/**
+ * Action handler packet insert to output port
*
- * This function is called by the table action handler whenever it generates a
- * new packet to be sent out though one of the pipeline output ports. This
- * packet is not part of the burst of input packets read from any of the
- * pipeline input ports, so it is not an element of the pkts array input
- * parameter of the table action handler. This packet can be dropped by the
- * output port action handler.
+ * This function can be called by any input/output port or table action handler
+ * to send a packet out through one of the pipeline output ports. This packet is
+ * generated by the action handler, i.e. this packet is not part of the burst of
+ * packets read from one of the pipeline input ports and currently processed by
+ * the pipeline (this packet is not an element of the pkts array input parameter
+ * of the action handler).
*
* @param p
* Handle to pipeline instance
* Output port ID (returned by previous invocation of pipeline output port
* create) to send the packet specified by pkt
* @param pkt
- * New packet generated by the table action handler
+ * New packet generated by the action handler
* @return
* 0 on success, error code otherwise
*/
uint32_t port_id,
struct rte_mbuf *pkt);
+#define rte_pipeline_ah_port_out_packet_insert \
+ rte_pipeline_port_out_packet_insert
+
/**
- * Read pipeline port out stats.
+ * Action handler packet hijack
*
- * This function reads port out statistics identified by *port_id* of given
- * pipeline *p*.
+ * This function can be called by any input/output port or table action handler
+ * to hijack selected packets from the burst of packets read from one of the
+ * pipeline input ports and currently processed by the pipeline. The hijacked
+ * packets are removed from any further pipeline processing, with the action
+ * handler now having the full ownership for these packets.
+ *
+ * The action handler can further send the hijacked packets out through any
+ * pipeline output port by calling the rte_pipeline_ah_port_out_packet_insert()
+ * function. The action handler can also drop these packets by calling the
+ * rte_pktmbuf_free() function, although a better alternative is provided by
+ * the action handler using the rte_pipeline_ah_packet_drop() function.
*
* @param p
- * Handle to pipeline instance.
- * @param port_id
- * Port ID what stats will be returned.
- * @param stats
- * Statistics buffer.
- * @param clear
- * If not 0 clear stats after reading.
+ * Handle to pipeline instance
+ * @param pkts_mask
+ * 64-bit bitmask specifying which of the packets handed over for processing
+ * to the action handler is to be hijacked by the action handler. When
+ * pkts_mask bit n is set, then element n of the pkts array (input argument to
+ * the action handler) is hijacked.
* @return
* 0 on success, error code otherwise
*/
-int rte_pipeline_port_out_stats_read(struct rte_pipeline *p, uint32_t port_id,
- struct rte_pipeline_port_out_stats *stats, int clear);
+int rte_pipeline_ah_packet_hijack(struct rte_pipeline *p,
+ uint64_t pkts_mask);
+
+/**
+ * Action handler packet drop
+ *
+ * This function is called by the pipeline action handlers (port in/out, table)
+ * to drop the packets selected using packet mask.
+ *
+ * This function can be called by any input/output port or table action handler
+ * to drop selected packets from the burst of packets read from one of the
+ * pipeline input ports and currently processed by the pipeline. The dropped
+ * packets are removed from any further pipeline processing and the packet
+ * buffers are eventually freed to their buffer pool.
+ *
+ * This function updates the drop statistics counters correctly, therefore the
+ * recommended approach for dropping packets by the action handlers is to call
+ * this function as opposed to the action handler hijacking the packets first
+ * and then dropping them invisibly to the pipeline (by using the
+ * rte_pktmbuf_free() function).
+ *
+ * @param p
+ * Handle to pipeline instance
+ * @param pkts_mask
+ * 64-bit bitmask specifying which of the packets handed over for processing
+ * to the action handler is to be dropped by the action handler. When
+ * pkts_mask bit n is set, then element n of the pkts array (input argument to
+ * the action handler) is dropped.
+ * @return
+ * 0 on success, error code otherwise
+ */
+int rte_pipeline_ah_packet_drop(struct rte_pipeline *p,
+ uint64_t pkts_mask);
+
#ifdef __cplusplus
}
#endif
git.droids-corp.org / dpdk.git / blobdiff