This patch adds new class distributed_device which is responsible for initializing HW device and it is shared between all cpus. Old device class responsibility becomes managing rx/tx queue pair and it is local per cpu. Each cpu have to call distributed_device::init_local_queue() to create its own device. The logic to distribute cpus between available queues (in case there is no enough queues for each cpu) is in the distributed_device currently and not really implemented yet, so only one queue or queues == cpus scenarios are supported currently, but this can be fixed later. The plan is to rename "distributed_device" to "device" and "device" to "queue_pair" in later patches.
29 lines
626 B
C++
29 lines
626 B
C++
/*
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* Copyright (C) 2014 Cloudius Systems, Ltd.
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*/
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#include "net/arp.hh"
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#include "net/ip.hh"
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#include "net/net.hh"
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#include "core/reactor.hh"
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#include "net/virtio.hh"
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using namespace net;
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int main(int ac, char** av) {
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boost::program_options::variables_map opts;
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opts.insert(std::make_pair("tap-device", boost::program_options::variable_value(std::string("tap0"), false)));
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auto vnet = create_virtio_net_device(opts);
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vnet->init_local_queue(opts);
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interface netif(std::move(vnet));
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ipv4 inet(&netif);
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inet.set_host_address(ipv4_address("192.168.122.2"));
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engine.run();
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return 0;
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}
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