I have just published latest picotcp-enabled barebox. Please see my 20150715.picotcp branch in my github barebox repo (https://github.com/frantony/barebox/tree/20150715.picotcp). This version is based on the latest barebox-next and picotcp v1.5.0 (there is also picotcp v1.5.1, but is has no interested for barebox changes since v1.5.0). Changes since 2015.06.14 (see http://lists.infradead.org/pipermail/barebox/2015-June/023749.html): * drop picotcp tftp support; make it possible to use some barebox' network applications on top of picotcp udp packet ip: * use barebox' tftp support on top of picotcp; * use barebox' nfs support on top of picotcp; * use barebox' dns support on top of picotcp; Anyway new 'picoping' command uses picotcp ICMP support because it makes possible to realize traditional *NIX 'ping' program behaviour in barebox. * drop all unused picotcp files; * import picotcp dhcp stuff temporary skipped we can revive it in any moment but it's better to adapt barebox' dhcp implementation; Here is note/todo list: 1. with picotcp we can't easely use 'tftp' command with old syntax (no $<current network interface>.serverip anymore); 2. just now picotcp-based tftp/nfs file transfer is slower than old realisation (partialy it is my bad, e.g. extra memory copy operation is used for code simplification); see Very Simple Benchmarks below for details; 3. rework barebox dhcp, ifup and netconsole realization for working on top of picotcp. Very Simple Benchmarks ====================== I have sandbox barebox (192.168.1.2) and nfs- and tftp- servers on the same host (192.168.1.1). I copy 16MiB (16777216 bytes) file from server to sandbox barebox over network several times. I use time command inside sandox barebox for computing transfer time. barebox at barebox sandbox:/ eth0.ipaddr=192.168.1.2 barebox at barebox sandbox:/ mount -t tftp 192.168.1.1 /mnt ... barebox at barebox sandbox:/ time cp /mnt/16M . time: 546ms Here is typical transfer time values: +--------+--------------+--------------+ | | U-boot | picotcp | | | stack | stack | +--------+--------------+--------------+ | | | | | tftp | 546ms | 859ms | | | | | +--------+--------------+--------------+ | | | | | nfs | 1037ms | 1393ms | | | | | +--------+--------------+--------------+ There are some rather simple possibilities to slighly improve picotcp-barebox performance: * drop extra memory copy; * drop extra pico_tick() calls (is_timeout() calls poller_call(), so there is no need to call poller_call() explicitly in nfs/tftp code); * there is an issue with sustained tftp small file copy. E.g. barebox at barebox sandbox:/ ifconfig eth 192.168.1.2 255.255.255.0 Assigned ipv4 192.168.1.2 to device eth barebox at barebox sandbox:/ mount -t tftp 192.168.1.1 /mnt barebox at barebox sandbox:/ while true; do time cp /mnt/1M . ; done ... Warning: I have 122 timers Warning: I have 121 timers time: 48ms Warning: I have 122 timers Warning: I have 121 timers time: 53ms Warning: I have 122 timers Warning: I have 121 timers time: 54ms Antony Pavlov (12): picotcp: add barebox target support picotcp: switch to Kbuild net: add initial picotcp support WIP: fs/nfs.c: convert to picotcp WIP: fs/tftp.c: convert to picotcp WIP: net/dns: convert to picotcp net: picotcp: add test_picotcp command net: picotcp: add ifconfig command net: picotcp: add ping command net: picotcp: add route command sandbox_defconfig: switch to picotcp WIP: sandbox_defconfig: enable network testing-related stuff Makefile | 1 + arch/sandbox/configs/sandbox_defconfig | 12 ++ commands/Kconfig | 4 + fs/nfs.c | 150 +++++++++++++++++++++--- fs/tftp.c | 199 ++++++++++++++++++++++++++++---- include/net.h | 3 + include/pico_defines.h | 0 include/stdint.h | 1 + net/Kconfig | 17 +++ net/Makefile | 8 ++ net/dns.c | 101 ++++++++++++++-- net/eth.c | 71 ++++++++++++ net/net.c | 10 ++ net/picotcp.c | 20 ++++ net/picotcp/.gitignore | 1 + net/picotcp/Kconfig | 56 +++++++++ net/picotcp/Makefile | 30 +++++ net/picotcp/include/arch/pico_barebox.h | 76 ++++++++++++ net/picotcp/include/pico_config.h | 2 + net/picotcp/modules/Makefile | 8 ++ net/picotcp/stack/Makefile | 7 ++ net/picotcp_ifconfig.c | 116 +++++++++++++++++++ net/picotcp_ping.c | 85 ++++++++++++++ net/picotcp_route.c | 37 ++++++ net/picotcp_test_ipv4.c | 96 +++++++++++++++ 25 files changed, 1063 insertions(+), 48 deletions(-) create mode 100644 include/pico_defines.h create mode 100644 include/stdint.h create mode 100644 net/picotcp.c create mode 100644 net/picotcp/Kconfig create mode 100644 net/picotcp/Makefile create mode 100644 net/picotcp/include/arch/pico_barebox.h create mode 100644 net/picotcp/modules/Makefile create mode 100644 net/picotcp/stack/Makefile create mode 100644 net/picotcp_ifconfig.c create mode 100644 net/picotcp_ping.c create mode 100644 net/picotcp_route.c create mode 100644 net/picotcp_test_ipv4.c -- 2.1.4 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
