/*
* Copyright (c) 2001-2020 Mellanox Technologies, Ltd. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef NET_DEVICE_TABLE_MGR_H
#define NET_DEVICE_TABLE_MGR_H
#include <list>
#include <string>
#include <tr1/unordered_map>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "vma/event/timer_handler.h"
#include "vma/util/sys_vars.h"
#include "vma/proto/ip_address.h"
#include "vma/infra/cache_subject_observer.h"
#include "net_device_val.h"
#include "net_device_entry.h"
typedef std::tr1::unordered_map<in_addr_t, net_device_val*> net_device_map_addr_t;
typedef std::tr1::unordered_map<int, net_device_val*> net_device_map_index_t;
typedef std::list<ip_data_t> local_ip_list_t;
class net_device_table_mgr : public cache_table_mgr<ip_address, net_device_val*>, public observer
{
public:
net_device_table_mgr();
virtual ~net_device_table_mgr();
void update_tbl();
void print_val_tbl();
virtual void notify_cb(event *ev);
net_device_entry* create_new_entry(ip_address local_ip, const observer* dst);
net_device_val* get_net_device_val(const in_addr_t local_ip);
net_device_val* get_net_device_val(int if_index);
local_ip_list_t get_ip_list(int if_index = 0); // return list of the table_mgr managed ips
/**
* Arm ALL the managed CQ's notification channel
* This call will also check for race condition by polling each CQ after arming the notification channel.
* If race condition case occures then that CQ is polled and processed (and the CQ notification is armed)
* Returns >=0 the total number of wce processed
* < 0 on error
*/
int global_ring_poll_and_process_element(uint64_t *p_poll_sn, void* pv_fd_ready_array = NULL);
/**
* This will poll one time on the ALL the managed CQ's
* If a wce was found 'processing' will occur.
* Returns: >=0 the total number of wce processed
* < 0 error
*/
int global_ring_wait_for_notification_and_process_element(uint64_t *p_poll_sn, void* pv_fd_ready_array = NULL);
int global_ring_request_notification(uint64_t poll_sn);
/**
* This will poll one time on the ALL the managed CQ's
* If a wce was found 'processing' will occur.
* Returns: >=0 the total number of wce processed
* < 0 error
*/
int global_ring_drain_and_procces();
void global_ring_adapt_cq_moderation();
void global_ring_wakeup();
int global_ring_epfd_get();
void handle_timer_expired(void* user_data);
uint32_t get_max_mtu();
inline ts_conversion_mode_t get_ctx_time_conversion_mode() {
return m_time_conversion_mode;
};
private:
void del_link_event(const netlink_link_info* info);
void new_link_event(const netlink_link_info* info);
void free_ndtm_resources();
void set_max_mtu(uint32_t);
lock_mutex m_lock;
ts_conversion_mode_t m_time_conversion_mode;
net_device_map_addr_t m_net_device_map_addr;
net_device_map_index_t m_net_device_map_index;
int m_num_devices;
int m_global_ring_epfd;
int m_global_ring_pipe_fds[2];
uint32_t m_max_mtu;
};
extern net_device_table_mgr* g_p_net_device_table_mgr;
#endif