Fixed compilation related issues. Now the code compiles on most of the
architectures

Network stack is fixed now.
HTTPERF is working on both LMP and UMP communication channels.

Webserver working for full website with LMP.

This version of code still does not work for UMP,
and also it does not work for httperf test.

Also, there is lot of commented out code which was helpful for me
in debugging the issue of randome page-fault.

Carry flags with network packets sent and received
Intended for coordinating features like hardware checksumming etc.
between the driver and the network stack.
---
if/net_queue_manager.if | 5 ++-
include/lwip/pbuf.h | 3 ++
include/net_interfaces/flags.h | 18 +++++++++
include/net_interfaces/net_interfaces.h | 6 ++-
include/net_queue_manager/net_queue_manager.h | 12 ++++--
lib/lwip/src/barrelfish/idc_barrelfish.c | 9 +++--
lib/lwip/src/core/pbuf.c | 2 +
lib/net_interfaces/interface_raw.c | 21 ++++++----
lib/net_queue_manager/frag.c | 17 ++++----
lib/net_queue_manager/net_soft_filters_srv_impl.c | 44 +++++++++++----------
lib/net_queue_manager/queue_manager.c | 26 +++++++-----
lib/net_queue_manager/queue_manager_local.h | 3 +-
usr/bench/net_latency/elb/benchmark.c | 6 +--
usr/drivers/e1000/e1000n.c | 2 +-
usr/drivers/e10k/e10k_qdriver.c | 2 +-
usr/drivers/lo/lo_qdriver.c | 3 +-
usr/drivers/rtl8029/rtl8029.c | 3 +-
usr/vmkitmon/pci_vmkitmon_eth.c | 2 +-
18 files changed, 118 insertions(+), 66 deletions(-)
create mode 100644 include/net_interfaces/flags.h

debugging changes.. temparary commit
---
include/arch/cc.h | 4 +-
include/contmng/contmng.h | 2 +-
include/lwip/debug.h | 44 +++++++++------
include/lwip/opt.h | 2 +-
include/lwipopts.h | 4 +-
lib/lwip/src/barrelfish/idc_barrelfish.c | 19 ++++++-
lib/lwip/src/barrelfish/idc_net_control.c | 8 ++-
lib/lwip/src/core/pbuf.c | 8 +++
lib/lwip/src/core/udp.c | 6 +-
lib/net_queue_manager/net_soft_filters_srv_impl.c | 13 +++--
lib/net_queue_manager/queue_manager.c | 2 +-
lib/nfs/rpc_debug.h | 2 +-
usr/webserver/http_cache.c | 61 ++++++++++++++-------
usr/webserver/http_server.c | 3 +
usr/webserver/webserver_session.h | 2 +-
15 files changed, 125 insertions(+), 55 deletions(-)

debugging changes.. temparary commit

Barrelfish is compiling after the merge

added benchmark

not working anymore 2

Added tracing events for low latency networking
---
include/trace/trace.h | 34 +++++++++++++++++++++++--
kernel/arch/x86_64/irq.c | 4 +++
lib/lwip/src/barrelfish/idc_barrelfish.c | 9 +++++++
lib/lwip/src/core/pbuf.c | 16 ++++++++++++
usr/bench/net_latency/elb/Hakefile | 7 +++--
usr/bench/net_latency/elb/benchmark.c | 35 ++++++++++++++++++++++++++
usr/bench/net_latency/elb/benchmark_tcp.c | 38 +++++++++++++++++++++++++++++
usr/drivers/e10k/Hakefile | 11 +++++---
usr/drivers/e10k/e10k_qdriver.c | 26 ++++++++++---------
9 files changed, 158 insertions(+), 22 deletions(-)

new interface is working with most of the applications.
There are some issues with memory allocation which triggers failure
in alloc_pool_pbuf for webserver when loading all files, but applications
like echo_server is running.

Adapted lwip to use raw/benchmark interface
This includes a bunch of changes that are not directly related to the
interface, such as changes to the lwip memory management because of
alignment requirements the current interface imposes on buffers.
Also a bunch of features is broken now like software filtering and the
queue manager statistics/benchmarks.
---
hake/RuleDefs.hs | 5 +-
include/barrelfish/net_constants.h | 10 +-
include/lwip/memp_std.h | 4 +-
lib/lwip/src/api/api_msg.c | 13 +-
lib/lwip/src/barrelfish/idc_barrelfish.c | 995 ++-------------------------
lib/lwip/src/barrelfish/idc_net_control.c | 25 +-
lib/lwip/src/barrelfish/mem_barrelfish.c | 301 ++++-----
lib/lwip/src/barrelfish/mem_barrelfish.h | 1 +
lib/lwip/src/core/memp.c | 109 +++-
lib/lwip/src/core/pbuf.c | 94 ++-
usr/bfscope/Hakefile | 2 +-
usr/echoserver/Hakefile | 2 +-
usr/netd/Hakefile | 2 +-
usr/netfile/Hakefile | 2 +-
usr/replay/Hakefile | 4 +-
usr/testdesc/Hakefile | 2 +-
usr/tests/net_tests/openport_test/Hakefile | 2 +-
usr/tests/net_tests/udp_throughput/Hakefile | 2 +-
usr/webserver/Hakefile | 2 +-
19 files changed, 389 insertions(+), 1188 deletions(-)

Added the support to send the packets from different buffer than one which
is registered with the channel. This resolved the issues associated with
lwip reusing the pbufs to send out the packet and hence corrupting the state
of my spp registers.

Used the indent toll over most of the lwip code

udp_throughput benchmark is working properly with buffer management

changes in networking code: mostly to get udp_throughput test working

Merge from ASPLOS tree.

Initial version of public stable barrelfish repository.