e0ae50c687
The feature macro _GNU_SOURCE is defined globally, but there was some remaining useless settings. The internal definition in config/meson.build is kept, all other internal definitions of _GNU_SOURCE are removed, except in examples, which can be built as external applications. Note: external applications do not inherit of _GNU_SOURCE. Fixes:5d7b673d5f("mk: build with _GNU_SOURCE defined by default") Fixes:28188cee2a("build: enable BSD features visibility for FreeBSD") Fixes:e6cdc54cc0("net/mlx5: add socket server for external tools") Cc: stable@dpdk.org Signed-off-by: Thomas Monjalon <thomas@monjalon.net> Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru> Acked-by: David Marchand <david.marchand@redhat.com>
214 lines
6.0 KiB
C
214 lines
6.0 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright 2018-2019 Cisco Systems, Inc. All rights reserved.
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*/
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#ifndef _RTE_ETH_MEMIF_H_
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#define _RTE_ETH_MEMIF_H_
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#include <sys/queue.h>
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#include <ethdev_driver.h>
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#include <rte_ether.h>
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#include <rte_interrupts.h>
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#include "memif.h"
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#define ETH_MEMIF_DEFAULT_SOCKET_FILENAME "/run/memif.sock"
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#define ETH_MEMIF_DEFAULT_RING_SIZE 10
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#define ETH_MEMIF_DEFAULT_PKT_BUFFER_SIZE 2048
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#define ETH_MEMIF_MAX_NUM_Q_PAIRS 255
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#define ETH_MEMIF_MAX_LOG2_RING_SIZE 14
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#define ETH_MEMIF_MAX_REGION_NUM 256
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#define ETH_MEMIF_SHM_NAME_SIZE 32
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#define ETH_MEMIF_DISC_STRING_SIZE 96
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#define ETH_MEMIF_SECRET_SIZE 24
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extern int memif_logtype;
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#define MIF_LOG(level, fmt, args...) \
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rte_log(RTE_LOG_ ## level, memif_logtype, \
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"%s(): " fmt "\n", __func__, ##args)
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enum memif_role_t {
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MEMIF_ROLE_SERVER,
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MEMIF_ROLE_CLIENT,
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};
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struct memif_region {
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void *addr; /**< shared memory address */
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memif_region_size_t region_size; /**< shared memory size */
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int fd; /**< shared memory file descriptor */
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uint32_t pkt_buffer_offset;
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/**< offset from 'addr' to first packet buffer */
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};
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struct memif_queue {
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struct rte_mempool *mempool; /**< mempool for RX packets */
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struct pmd_internals *pmd; /**< device internals */
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memif_ring_type_t type; /**< ring type */
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memif_region_index_t region; /**< shared memory region index */
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uint16_t in_port; /**< port id */
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memif_region_offset_t ring_offset;
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/**< ring offset from start of shm region (ring - memif_region.addr) */
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uint16_t last_head; /**< last ring head */
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uint16_t last_tail; /**< last ring tail */
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struct rte_mbuf **buffers;
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/**< Stored mbufs. Used in zero-copy tx. Client stores transmitted
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* mbufs to free them once server has received them.
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*/
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/* rx/tx info */
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uint64_t n_pkts; /**< number of rx/tx packets */
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uint64_t n_bytes; /**< number of rx/tx bytes */
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struct rte_intr_handle intr_handle; /**< interrupt handle */
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memif_log2_ring_size_t log2_ring_size; /**< log2 of ring size */
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};
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struct pmd_internals {
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memif_interface_id_t id; /**< unique id */
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enum memif_role_t role; /**< device role */
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uint32_t flags; /**< device status flags */
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#define ETH_MEMIF_FLAG_CONNECTING (1 << 0)
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/**< device is connecting */
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#define ETH_MEMIF_FLAG_CONNECTED (1 << 1)
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/**< device is connected */
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#define ETH_MEMIF_FLAG_ZERO_COPY (1 << 2)
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/**< device is zero-copy enabled */
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#define ETH_MEMIF_FLAG_DISABLED (1 << 3)
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/**< device has not been configured and can not accept connection requests */
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#define ETH_MEMIF_FLAG_SOCKET_ABSTRACT (1 << 4)
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/**< use abstract socket address */
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char *socket_filename; /**< pointer to socket filename */
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char secret[ETH_MEMIF_SECRET_SIZE]; /**< secret (optional security parameter) */
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struct memif_control_channel *cc; /**< control channel */
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rte_spinlock_t cc_lock; /**< control channel lock */
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/* remote info */
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char remote_name[RTE_DEV_NAME_MAX_LEN]; /**< remote app name */
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char remote_if_name[RTE_DEV_NAME_MAX_LEN]; /**< remote peer name */
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struct {
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memif_log2_ring_size_t log2_ring_size; /**< log2 of ring size */
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uint8_t num_c2s_rings; /**< number of client to server rings */
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uint8_t num_s2c_rings; /**< number of server to client rings */
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uint16_t pkt_buffer_size; /**< buffer size */
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} cfg; /**< Configured parameters (max values) */
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struct {
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memif_log2_ring_size_t log2_ring_size; /**< log2 of ring size */
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uint8_t num_c2s_rings; /**< number of client to server rings */
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uint8_t num_s2c_rings; /**< number of server to client rings */
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uint16_t pkt_buffer_size; /**< buffer size */
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} run;
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/**< Parameters used in active connection */
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char local_disc_string[ETH_MEMIF_DISC_STRING_SIZE];
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/**< local disconnect reason */
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char remote_disc_string[ETH_MEMIF_DISC_STRING_SIZE];
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/**< remote disconnect reason */
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};
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struct pmd_process_private {
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struct memif_region *regions[ETH_MEMIF_MAX_REGION_NUM];
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/**< shared memory regions */
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memif_region_index_t regions_num; /**< number of regions */
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};
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/**
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* Unmap shared memory and free regions from memory.
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*
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* @param proc_private
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* device process private data
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*/
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void memif_free_regions(struct rte_eth_dev *dev);
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/**
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* Finalize connection establishment process. Map shared memory file
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* (server role), initialize ring queue, set link status up.
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*
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* @param dev
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* memif device
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* @return
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* - On success, zero.
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* - On failure, a negative value.
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*/
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int memif_connect(struct rte_eth_dev *dev);
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/**
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* Create shared memory file and initialize ring queue.
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* Only called by client when establishing connection
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*
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* @param dev
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* memif device
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* @return
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* - On success, zero.
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* - On failure, a negative value.
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*/
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int memif_init_regions_and_queues(struct rte_eth_dev *dev);
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/**
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* Get memif version string.
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*
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* @return
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* - memif version string
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*/
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const char *memif_version(void);
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#ifndef MFD_HUGETLB
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#ifndef __NR_memfd_create
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#if defined __x86_64__
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#define __NR_memfd_create 319
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#elif defined __x86_32__
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#define __NR_memfd_create 1073742143
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#elif defined __arm__
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#define __NR_memfd_create 385
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#elif defined __aarch64__
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#define __NR_memfd_create 279
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#elif defined __powerpc__
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#define __NR_memfd_create 360
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#elif defined __i386__
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#define __NR_memfd_create 356
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#else
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#error "__NR_memfd_create unknown for this architecture"
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#endif
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#endif /* __NR_memfd_create */
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static inline int memfd_create(const char *name, unsigned int flags)
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{
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return syscall(__NR_memfd_create, name, flags);
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}
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#endif /* MFD_HUGETLB */
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#ifndef F_LINUX_SPECIFIC_BASE
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#define F_LINUX_SPECIFIC_BASE 1024
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#endif
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#ifndef MFD_ALLOW_SEALING
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#define MFD_ALLOW_SEALING 0x0002U
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#endif
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#ifndef F_ADD_SEALS
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#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
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#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
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#define F_SEAL_SEAL 0x0001 /* prevent further seals from being set */
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#define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
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#define F_SEAL_GROW 0x0004 /* prevent file from growing */
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#define F_SEAL_WRITE 0x0008 /* prevent writes */
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#endif
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#endif /* RTE_ETH_MEMIF_H */
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