dc0bfd7008
- Packet stream buffers are directly passed to DMA. - Also enables pause frames and checksum offloading. Issue #3053
95 lines
2.1 KiB
C++
95 lines
2.1 KiB
C++
/*
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* \brief EMACPS NIC driver for Xilix Zynq-7000
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* \author Timo Wischer
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* \date 2015-03-10
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*/
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/*
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* Copyright (C) 2015-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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/* Genode includes */
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/*
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* Needs to be included first because otherwise
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* util/xml_node.h will not pick up the ascii_to
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* overload.
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*/
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#include <nic/xml_node.h>
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#include <base/attached_rom_dataspace.h>
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#include <base/component.h>
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#include <base/heap.h>
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#include <drivers/defs/zynq.h>
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#include <nic/root.h>
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#include "cadence_gem.h"
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namespace Server {
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using namespace Genode;
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class Gem_session_component;
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struct Main;
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}
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class Server::Gem_session_component : public Cadence_gem
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{
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private:
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Genode::Attached_rom_dataspace _config_rom;
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public:
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Gem_session_component(Genode::size_t const tx_buf_size,
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Genode::size_t const rx_buf_size,
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Genode::Allocator &rx_block_md_alloc,
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Genode::Env &env)
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:
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Cadence_gem(tx_buf_size, rx_buf_size, rx_block_md_alloc, env,
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Zynq::EMAC_0_MMIO_BASE,
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Zynq::EMAC_0_MMIO_SIZE,
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Zynq::EMAC_0_IRQ),
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_config_rom(env, "config")
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{
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Nic::Mac_address mac_addr;
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/* try using configured MAC address */
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try {
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Genode::Xml_node nic_config = _config_rom.xml().sub_node("nic");
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nic_config.attribute("mac").value(&mac_addr);
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} catch (...) {
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/* fall back to fake MAC address (unicast, locally managed) */
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mac_addr.addr[0] = 0x02;
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mac_addr.addr[1] = 0x00;
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mac_addr.addr[2] = 0x00;
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mac_addr.addr[3] = 0x00;
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mac_addr.addr[4] = 0x00;
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mac_addr.addr[5] = 0x01;
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}
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Genode::log("Using MAC address ", mac_addr);
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/* set mac address */
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mac_address(mac_addr);
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}
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};
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struct Server::Main
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{
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Env &_env;
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Heap _heap { _env.ram(), _env.rm() };
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Nic::Root<Gem_session_component> nic_root{ _env, _heap };
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Main(Env &env) : _env(env)
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{
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_env.parent().announce(_env.ep().manage(nic_root));
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}
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};
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void Component::construct(Genode::Env &env) { static Server::Main main(env); }
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