Commit Graph

18 Commits

Author SHA1 Message Date
Stefan Kalkowski
8f0c789ed4 Make NIC RX/TX buffer sizes configureable in libc
* Remove far too low default values from Nic::Connection constructor
* Extend lwip initialization function with desired TX/RX buffer sizes
* Add configuration possibility to libc_lwip_dhcp plugin to define
  buffer sizes, like the following:

  '<libc tx_buf_size="1M" tx_buf_size="1M"/>'

Fixes #892
2013-10-22 08:00:14 +02:00
Christian Prochaska
26ba81175b lwip: add checksum options to 'lwipopts.h'
This patch adds some of lwip's checksum calculation options to the
Genode-specific 'lwiptops.h' configuration file. The checksum calculations
are enabled by default.

Fixes #868.
2013-09-02 19:41:48 +02:00
Alexander Boettcher
6c994d19fe lwip: use alignment solely of 4
Temporarily 64bit fix for issue #817.
2013-08-13 17:08:25 +02:00
Alexander Boettcher
fd7683f6ea lwip: use memcpy of Genode 2013-06-27 20:12:43 +02:00
Alexander Boettcher
776a8d3f8c lwip: set to max snd window which is known to work
The window scale option (http://tools.ietf.org/html/rfc1323) patch of lwIP
definitely works solely for the receive window, not for the send window.
Setting the send window size to the maximum of an 16bit value, 65535,
or multiple of it (x * 65536 - 1) results in the same performance.

Everything else decrease performance.

We will have to check this window scale patch before using higher values.
2013-06-27 20:12:29 +02:00
Alexander Boettcher
d822b82f5b lwip: align the pbuf on 32 resp. 64 bit addresses
Minor speed improvements of ~6Mbit. Additionally a ethernet frame fits now
into one memory allocation per pbuf. Beforehand two were allocated - one being
1514 bytes and another one being 2 bytes (monitored by instrumenting copy loop
in libports/src/lib/lwip/platform/nic.cc).
2013-06-26 17:42:11 +02:00
Alexander Boettcher
8d9e7d0da2 lwip: set some reasonable default rcv buf size
lwip reports via getsockopt the size of the default size of the receive buffer
to the netperf server. lwip returns 2GB and netperf server uses this value to
allocate some buffers - which of course fails with out of memory.

Reduces the "default size" to some smaller value.

With the commit we are not forced anymore to (but still can) use specific
netperf client options regarding memory allocations of the receive buffer.
2013-06-26 17:42:02 +02:00
Alexander Boettcher
5d79c6be1a lwip: increase send performance for arndale USB2.0
Getting up to 91 Mbit out of a 100 Mbit card.
2013-06-25 17:42:42 +02:00
Alexander Boettcher
8a623c6317 lwip: support send, recv timeouts 2013-06-25 17:42:42 +02:00
Alexander Boettcher
4bffa249fd lwip: tweak foc_panda to netperf tcp >90MBit/s 2013-06-25 17:42:42 +02:00
Alexander Boettcher
2349cd2dc3 lwip: enable SO_RCVBUF socket option
In issue #313 the SO_RCVBUF was intended to be enabled, however the current
lwip port looks for another define LWIP_SO_RCVBUF instead of LWIP_RCVBUF.

Fixes #716
2013-05-10 11:16:11 +02:00
Sebastian Sumpf
4873f35945 LWIP: Use LWIP_SO_RCVBUF instead of LWIP_RCVBUF
The name of this option has changed

Issue #382
2013-05-06 18:50:35 +02:00
Norman Feske
73ab30c22c Update copyright headers to 2013 2013-01-10 21:44:47 +01:00
Josef Söntgen
f7dd8aa688 libports: adjust lwip's TCP_SND_BUF size
The old values were much too small and the current ones are probably to
large but the TCP send throuhgput has increased noticeable (a few MiB/s
on the Pandaboard).

Fixes #343.
2012-09-03 11:10:39 +02:00
Norman Feske
24107d7a48 lwip: purge PCBs in time-wait state more quickly
Fixes #33.
2012-08-16 13:33:00 +02:00
Josef Söntgen
69fd7e1c32 libports: update lwip to STABLE-1.4.1-RC1
The new version works fine but there is an issue with connect()
that needs the included patch:

There is no actual handling of EALREADY in lwip. It sets errno
to EALREADY when the connection was established. Unfortunatly this
is really bad because most programs expect to receive errno EISCONN
if the connection was successfully established. So this behaviour
breaks Qt4 and several noux/net packages (like lynx) because those
programs end up in an endless loop trying to connect via an already
connected socket. The longterm solution would be fixing the wrong
behaviour in lwip (there are already bug-reports on lwip's mailinglist)
but for now, it works well enough to simple change lwip's err_to_errno
table to set errno to EISCONN when the connection was established.
2012-08-15 14:31:18 +02:00
Norman Feske
08ce32215d Bump year in copyright headers to 2012 2012-01-03 15:35:05 +01:00
Genode Labs
da4e1feaa5 Imported Genode release 11.11 2011-12-22 16:19:25 +01:00