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/*
// Copyright (c) 2010-2017 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
*/
#ifndef _TASK_BASE_H_
#define _TASK_BASE_H_
#include <rte_common.h>
#ifndef __rte_cache_aligned
#include <rte_memory.h>
#endif
#include "defaults.h"
#include "prox_globals.h"
#include "stats_task.h"
#include "packet_utils.h"
// runtime_flags 16 bits only
#define TASK_MPLS_TAGGING 0x0001
#define TASK_ROUTING 0x0002
#define TASK_CLASSIFY 0x0004
#define TASK_CTRL_HANDLE_ARP 0x0008
#define TASK_MARK 0x0020
#define TASK_FP_HANDLE_ARP 0x0040
#define TASK_TX_CRC 0x0080
#define TASK_L3 0x0100
// flag_features 64 bits
#define TASK_FEATURE_ROUTING 0x0001
#define TASK_FEATURE_CLASSIFY 0x0002
#define TASK_FEATURE_MULTI_RX 0x0004
#define TASK_FEATURE_NEVER_DISCARDS 0x0008
#define TASK_FEATURE_NO_RX 0x0010
#define TASK_FEATURE_TXQ_FLAGS_NOOFFLOADS 0x0020
#define TASK_FEATURE_TXQ_FLAGS_MULTSEGS 0x0040
#define TASK_FEATURE_ZERO_RX 0x0080
#define TASK_FEATURE_TXQ_FLAGS_REFCOUNT 0x0100
#define TASK_FEATURE_TSC_RX 0x0200
#define TASK_FEATURE_THROUGHPUT_OPT 0x0400
#define TASK_FEATURE_GRE_ID 0x1000
#define TASK_FEATURE_LUT_QINQ_RSS 0x2000
#define TASK_FEATURE_LUT_QINQ_HASH 0x4000
#define TASK_FEATURE_RX_ALL 0x8000
#define TASK_MULTIPLE_MAC 0x10000
#define FLAG_TX_FLUSH 0x01
#define FLAG_NEVER_FLUSH 0x02
// Task specific flags
#define BASE_FLAG_LUT_QINQ_HASH 0x08
#define BASE_FLAG_LUT_QINQ_RSS 0x10
#define OUT_DISCARD 0xFF
#define OUT_HANDLED 0xFE
#define WS_MBUF_MASK (2 * MAX_PKT_BURST - 1)
/* struct ws_mbuf stores the working set of mbufs. It starts with a
prod/cons index to keep track of the number of elemenets. */
struct ws_mbuf {
struct {
uint16_t prod;
uint16_t cons;
uint16_t nb_rx;
uint16_t pad; /* reserved */
} idx[MAX_RINGS_PER_TASK];
struct rte_mbuf *mbuf[][MAX_RING_BURST * 3] __rte_cache_aligned;
};
struct port_queue {
uint8_t port;
uint8_t queue;
} __attribute__((packed));
struct rx_params_hw {
union {
uint8_t nb_rxports;
uint8_t rxport_mask;
};
uint8_t last_read_portid;
struct port_queue *rx_pq;
} __attribute__((packed));
struct rx_params_hw1 {
struct port_queue rx_pq;
} __attribute__((packed));
struct rx_params_sw {
union {
uint8_t nb_rxrings;
uint8_t rxrings_mask; /* Used if rte_is_power_of_2(nb_rxrings)*/
};
uint8_t last_read_ring;
struct rte_ring **rx_rings;
} __attribute__((packed));
/* If there is only one input ring, the pointer to it can be stored
directly into the task_base instead of having to use a pointer to a
set of rings which would require two dereferences. */
struct rx_params_sw1 {
struct rte_ring *rx_ring;
} __attribute__((packed));
struct tx_params_hw {
uint16_t nb_txports;
struct port_queue *tx_port_queue;
} __attribute__((packed));
struct tx_params_sw {
uint16_t nb_txrings;
struct rte_ring **tx_rings;
} __attribute__((packed));
struct tx_params_hw_sw { /* Only one port supported in this mode */
uint16_t nb_txrings;
struct rte_ring **tx_rings;
struct port_queue tx_port_queue;
} __attribute__((packed));
struct task_rt_dump {
uint32_t n_print_rx;
uint32_t n_print_tx;
struct input *input;
uint32_t n_trace;
uint32_t cur_trace;
void *pkt_mbuf_addr[MAX_RING_BURST]; /* To track reordering */
uint8_t pkt_cpy[MAX_RING_BURST][DUMP_PKT_LEN];
uint16_t pkt_cpy_len[MAX_RING_BURST];
};
struct task_base;
#define MAX_RX_PKT_ALL 16384
#define RX_BUCKET_SIZE (2 * MAX_RING_BURST + 1) /* Limit RX bucket size */
#define TX_BUCKET_SIZE (MAX_RING_BURST +1)
#define MAX_STACKED_RX_FUCTIONS 16
typedef uint16_t (*rx_pkt_func) (struct task_base *tbase, struct rte_mbuf ***mbufs);
struct task_base_aux {
/* Not used when PROX_STATS is not defined */
struct task_rt_stats stats;
/* Used if TASK_TSC_RX is enabled*/
struct {
uint64_t before;
uint64_t after;
} tsc_rx;
struct rte_mbuf **all_mbufs;
uint16_t rx_prev_count;
uint16_t rx_prev_idx;
uint16_t (*rx_pkt_prev[MAX_STACKED_RX_FUCTIONS])(struct task_base *tbase, struct rte_mbuf ***mbufs);
uint32_t rx_bucket[RX_BUCKET_SIZE];
uint32_t tx_bucket[TX_BUCKET_SIZE];
int (*tx_pkt_l2)(struct task_base *tbase, struct rte_mbuf **mbufs, const uint16_t n_pkts, uint8_t *out);
int (*tx_pkt_orig)(struct task_base *tbase, struct rte_mbuf **mbufs, const uint16_t n_pkts, uint8_t *out);
int (*tx_pkt_hw)(struct task_base *tbase, struct rte_mbuf **mbufs, const uint16_t n_pkts, uint8_t *out);
uint16_t (*tx_pkt_try)(struct task_base *tbase, struct rte_mbuf **mbufs, const uint16_t n_pkts);
void (*stop)(struct task_base *tbase);
void (*start)(struct task_base *tbase);
void (*stop_last)(struct task_base *tbase);
void (*start_first)(struct task_base *tbase);
struct task_rt_dump task_rt_dump;
};
/* The task_base is accessed for _all_ task types. In case
no debugging or l3 is needed, it has been optimized to fit
into a single cache line to minimize cache pollution */
struct task_base {
int (*handle_bulk)(struct task_base *tbase, struct rte_mbuf **mbufs, const uint16_t n_pkts);
int (*tx_pkt)(struct task_base *tbase, struct rte_mbuf **mbufs, const uint16_t n_pkts, uint8_t *out);
uint16_t (*rx_pkt)(struct task_base *tbase, struct rte_mbuf ***mbufs);
struct task_base_aux* aux;
/* The working set of mbufs contains mbufs that are currently
being handled. */
struct ws_mbuf *ws_mbuf;
uint16_t flags;
union {
struct rx_params_hw rx_params_hw;
struct rx_params_hw1 rx_params_hw1;
struct rx_params_sw rx_params_sw;
struct rx_params_sw1 rx_params_sw1;
};
union {
struct tx_params_hw tx_params_hw;
struct tx_params_sw tx_params_sw;
struct tx_params_hw_sw tx_params_hw_sw;
};
struct l3_base l3;
uint32_t local_ipv4;
} __attribute__((packed)) __rte_cache_aligned;
static void task_base_add_rx_pkt_function(struct task_base *tbase, rx_pkt_func to_add)
{
if (tbase->aux->rx_prev_count == MAX_STACKED_RX_FUCTIONS) {
return;
}
for (int16_t i = tbase->aux->rx_prev_count; i > 0; --i) {
tbase->aux->rx_pkt_prev[i] = tbase->aux->rx_pkt_prev[i - 1];
}
tbase->aux->rx_pkt_prev[0] = tbase->rx_pkt;
tbase->rx_pkt = to_add;
tbase->aux->rx_prev_count++;
}
static void task_base_del_rx_pkt_function(struct task_base *tbase, rx_pkt_func to_del)
{
int cur = 0;
int found = 0;
if (unlikely(tbase->aux->rx_prev_count == 0)) {
return;
} else if (tbase->rx_pkt == to_del) {
tbase->rx_pkt = tbase->aux->rx_pkt_prev[0];
for (int16_t i = 0; i < tbase->aux->rx_prev_count - 1; ++i) {
tbase->aux->rx_pkt_prev[i] = tbase->aux->rx_pkt_prev[i + 1];
}
found = 1;
} else {
for (int16_t i = 0; i < tbase->aux->rx_prev_count; ++i) {
if (found || tbase->aux->rx_pkt_prev[i] != to_del)
tbase->aux->rx_pkt_prev[cur++] = tbase->aux->rx_pkt_prev[i];
else
found = 1;
}
}
if (found)
tbase->aux->rx_prev_count--;
}
static rx_pkt_func task_base_get_original_rx_pkt_function(struct task_base *tbase)
{
if (tbase->aux->rx_prev_count == 0)
return tbase->rx_pkt;
else
return tbase->aux->rx_pkt_prev[tbase->aux->rx_prev_count - 1];
}
#endif /* _TASK_BASE_H_ */
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