f-stack/lib/ff_memory.h

117 lines
3.7 KiB
C

/*
* Copyright (C) 2017 THL A29 Limited, a Tencent company.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef __FSTACK_MEMORY_H
#define __FSTACK_MEMORY_H
#ifdef __cplusplus
extern "C" {
#endif
#define MEMPOOL_CACHE_SIZE 256
#define DISPATCH_RING_SIZE 2048
#define MSG_RING_SIZE 32
/*
* Configurable number of RX/TX ring descriptors
*/
#define RX_QUEUE_SIZE 512
#define TX_QUEUE_SIZE 512
/*
* Try to avoid TX buffering if we have at least MAX_TX_BURST packets to send.
*/
#define MAX_TX_BURST (MAX_PKT_BURST / 2)
#define NB_SOCKETS 8
/* Configure how many packets ahead to prefetch, when reading packets */
#define PREFETCH_OFFSET 3
#define MAX_RX_QUEUE_PER_LCORE 16
#define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
#define MAX_RX_QUEUE_PER_PORT 128
struct ff_dpdk_if_context {
void *sc;
void *ifp;
uint16_t port_id;
struct ff_hw_features hw_features;
} __rte_cache_aligned;
struct mbuf_table {
uint16_t len;
struct rte_mbuf *m_table[MAX_PKT_BURST];
#ifdef FF_USE_PAGE_ARRAY
void* bsd_m_table[MAX_PKT_BURST]; // save bsd mbuf address which will be enquene into txring after NIC transmitted pkt.
#endif
};
struct lcore_rx_queue {
uint16_t port_id;
uint16_t queue_id;
} __rte_cache_aligned;
struct lcore_conf {
uint16_t proc_id;
uint16_t socket_id;
uint16_t nb_queue_list[RTE_MAX_ETHPORTS];
struct ff_port_cfg *port_cfgs;
uint16_t nb_rx_queue;
struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
uint16_t nb_tx_port;
uint16_t tx_port_id[RTE_MAX_ETHPORTS];
uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
char *pcap[RTE_MAX_ETHPORTS];
} __rte_cache_aligned;
#ifdef FF_USE_PAGE_ARRAY
// mbuf_txring save mbuf which had bursted into NIC, m_tables has same length with NIC dev's sw_ring.
// Then when txring.m_table[x] is reused, the packet in txring.m_table[x] had been transmited by NIC.
// that means the mbuf can be freed safely.
struct mbuf_txring{
void* m_table[TX_QUEUE_SIZE];
uint16_t head; // next available element.
};
void ff_init_ref_pool(int nb_mbuf, int socketid);
int ff_mmap_init();
int ff_if_send_onepkt(struct ff_dpdk_if_context *ctx, void *m, int total);
int ff_enq_tx_bsdmbuf(uint8_t portid, void *p_mbuf, int nb_segs);
#endif
#ifdef __cplusplus
}
#endif
#endif