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Nic_bridge: Use Nic::Packet_allocator

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Calculate TX and RX dataspace sizes correctly.
This commit is contained in:
Sebastian Sumpf 2012-08-07 17:29:16 +02:00 committed by Norman Feske
parent 3207b4eed0
commit 3736b8b2f2
3 changed files with 23 additions and 14 deletions
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23
os/src/server/nic_bridge/address_node.cc
View File

@ -29,19 +29,20 @@ void Net::Address_node<LEN>::receive_packet(void *addr, Genode::size_t size)
Nic::Session::Rx::Source *source = _component->rx_source();
/* flush remaining acknowledgements */
while (source->ack_avail())
source->release_packet(source->get_acked_packet());
while (true) {
/* flush remaining acknowledgements */
while (source->ack_avail())
source->release_packet(source->get_acked_packet());
try {
/* allocate packet in rx channel */
Packet_descriptor rx_packet = source->alloc_packet(size);
try {
/* allocate packet in rx channel */
Packet_descriptor rx_packet = source->alloc_packet(size);
Genode::memcpy((void*)source->packet_content(rx_packet),
(void*)addr, size);
source->submit_packet(rx_packet);
} catch (Nic::Session::Rx::Source::Packet_alloc_failed) {
PWRN("Couldn't transmit packet to client");
Genode::memcpy((void*)source->packet_content(rx_packet),
(void*)addr, size);
source->submit_packet(rx_packet);
return;
} catch (Nic::Session::Rx::Source::Packet_alloc_failed) { }
}
}

3
os/src/server/nic_bridge/component.h
View File

@ -18,6 +18,7 @@
#include <base/lock.h>
#include <root/component.h>
#include <util/arg_string.h>
#include <nic/packet_allocator.h>
#include <nic_session/rpc_object.h>
#include <nic_session/connection.h>
#include <net/ipv4.h>
@ -38,7 +39,7 @@ namespace Net {
private:
Genode::Allocator_guard _guarded_alloc;
Genode::Allocator_avl _range_alloc;
Nic::Packet_allocator _range_alloc;
public:

11
os/src/server/nic_bridge/main.cc
View File

@ -16,6 +16,7 @@
#include <base/sleep.h>
#include <cap_session/connection.h>
#include <nic_session/connection.h>
#include <nic/packet_allocator.h>
#include "packet_handler.h"
#include "component.h"
@ -29,11 +30,17 @@ int main(int, char **)
static Cap_connection cap;
static Rpc_entrypoint ep(&cap, STACK_SIZE, "nic_bridge_ep");
static Genode::Allocator_avl tx_block_alloc(env()->heap());
static Nic::Packet_allocator tx_block_alloc(env()->heap());
enum {
PACKET_SIZE = Nic::Packet_allocator::DEFAULT_PACKET_SIZE,
RX_BUF_SIZE = Nic::Session::RX_QUEUE_SIZE * PACKET_SIZE,
TX_BUF_SIZE = Nic::Session::TX_QUEUE_SIZE * PACKET_SIZE
};
Root_capability nic_root_cap;
try {
static Nic::Connection nic(&tx_block_alloc);
static Nic::Connection nic(&tx_block_alloc, TX_BUF_SIZE, RX_BUF_SIZE);
static Net::Rx_handler rx_handler(&nic);
static Net::Root nic_root(&ep, env()->heap(), &nic);