summaryrefslogtreecommitdiff
path: root/net
Commit message (Collapse)AuthorAgeLines
* net: BOOTP retry timeout improvementsStephen Warren2014-08-09-11/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the BOOTP code sends out its initial request as soon as the Ethernet driver indicates "link up". If this packet is lost or not replied to for some reason, the code waits for a 1s timeout before retrying. For some reason, such early packets are often lost on my system, so this causes an annoying delay. To optimize this, modify the BOOTP code to have very short timeouts for the first packet transmitted, but gradually increase the timeout each time a timeout occurs. This way, if the first packet is lost, the second packet is transmitted quite quickly and hence the overall delay is low. However, if there's still no response, we don't keep spewing out packets at an insane speed. It's arguably more correct to try and find out why the first packet is lost. However, it seems to disappear inside my Ethenet chip; the TX chip indicates no error during TX (not that it has much in the way of reporting...), yet wireshark on the RX side doesn't see any packet. FWIW, I'm using an ASIX USB Ethernet adapter. Perhaps "link up" is reported too early or based on the wrong condition in HW, and we should add some fixed extra delay into the driver. However, this would slow down every link up event even if it ends up not being needed in some cases. Having BOOTP retry quickly applies the fix/WAR to every possible Ethernet device, and is quite simple to implement, so seems a better solution. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* Ethernet: let user know if there is no valid ethernet addressPavel Machek2014-07-22-8/+21
| | | | | | Improve error messages in case of invalid/unset ethernet addresses. Signed-off-by: Pavel Machek <pavel@denx.de>
* bootp can use mdelayPavel Machek2014-07-22-3/+2
| | | | | | | Cleanup bootp code by using mdelay. Signed-off-by: Pavel Machek <pavel@denx.de> Acked-by: Marek Vasut <marex@denx.de>
* fix: CONFIG_NETCONSOLE start/handle this stuff only outside SPLHannes Petermaier2014-06-19-2/+2
| | | | | | | SPL stage does not support various networking things, and therefore CONFIG_NETCONSOLE cannot be built within SPL. Signed-off-by: Hannes Petermaier <oe5hpm@oevsv.at>
* net: rename and refactor eth_rand_ethaddr() functionMasahiro Yamada2014-05-12-22/+0
| | | | | | | | | | | | | | | | | | | | Some functions in include/net.h are ported from include/linux/etherdevice.h of Linux Kernel. For ex. is_zero_ether_addr() is_multicast_ether_addr() is_broadcast_ether_addr() is_valid_ether_addr(); So, we should use the same function name as that of Linux Kernel, eth_rand_addr(), for consistency. Besides, eth_rand_addr() has been implemented as an inline function. So it should not be surrounded by #ifdef CONFIG_RANDOM_MACADDR. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* lib: uuid: code refactor for proper maintain between uuid bin and stringPrzemyslaw Marczak2014-04-02-1/+1
| | | | | | | | | | | | | | | | | | | | | | | Changes in lib/uuid.c to: - uuid_str_to_bin() - uuid_bin_to_str() New parameter is added to specify input/output string format in listed functions This change allows easy recognize which UUID type is or should be stored in given string array. Binary data of UUID and GUID is always stored in big endian, only string representations are different as follows. String byte: 0 36 String char: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx string UUID: be be be be be string GUID: le le le be be This patch also updates functions calls and declarations in a whole code. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: trini@ti.com
* kbuild: use Linux Kernel build scriptsMasahiro Yamada2014-02-19-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Now we are ready to switch over to real Kbuild. This commit disables temporary scripts: scripts/{Makefile.build.tmp, Makefile.host.tmp} and enables real Kbuild scripts: scripts/{Makefile.build,Makefile.host,Makefile.lib}. This switch is triggered by the line in scripts/Kbuild.include -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj We need to adjust some build scripts for U-Boot. But smaller amount of modification is preferable. Additionally, we need to fix compiler flags which are locally added or removed. In Kbuild, it is not allowed to change CFLAGS locally. Instead, ccflags-y, asflags-y, cppflags-y, CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o are prepared for that purpose. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
* net: execute "miiphy_init" if CONFIG_PHYLIB definedAlexey Brodkin2014-02-07-1/+1
| | | | | | | | | | | | | | | | | | | | In "common/Makefile" "miiphyutil.o" gets built if any of the following items enabled: * CONFIG_PHYLIB * CONFIG_MII * CONFIG_CMD_MII So it's possible to not define CONFIG_MII or CONFIG_CMD_MII and still use functions like "miiphy_get_dev_by_name". In its turn "miiphy_get_dev_by_name" traverses "mii_devs" list which is not initialized because "miiphy_init" never got called. Cc: Rob Herring <rob.herring@calxeda.com> Cc: Simon Glass <sjg@chromium.org> Cc: Wolfgang Denk <wd@denx.de> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
* net: tftpsrv: Get correct client MAC addressAndrew Ruder2013-11-22-0/+3
| | | | | | | | | | | | | | | | | | | | | NetServerEther was not being cleared in the tftp server code, so the destination MAC address would be whatever the last destination MAC address was. Scenario: U-Boot: dhcp tftpsrv Host: Send device WRQ Device: Responds with ACK to dhcp server mac address with host ip address By clearing NetServerEther, we force a lookup of the host MAC address to go with the associated host IP. Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
* net: tftp: Make sure timeout will not effect wrap offsetrockly2013-11-22-1/+1
| | | | | | | | | | When the block 0 store to the memory of client and timeout at this moment. Because of no ACK packet, the server will send block 0 again, if this client reconnect to the server at this time, TftpBlockWrapOffset will become larger than it should be. Signed-off-by: Rockly <rocklygnome@gmail.com> Patch: 264417
* net: convert a makefile to Kbuild styleMasahiro Yamada2013-10-31-34/+12
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* NET: Add net_busy_flag if CONFIG_USB_KEYBOARD is definedJim Lin2013-08-26-0/+11
| | | | | | This flag is to make console aware that NET transfer is running or not. Signed-off-by: Jim Lin <jilin@nvidia.com>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-80/+7
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* net: Correct check for link-local target IP conflictJoe Hershberger2013-06-24-4/+13
| | | | | | | | | | Make the link-local code conform more completely with the RFC. This will prevent ARP queries for the target (such as while it is rebooting) from causing the device to choose a different link-local address, thinking that its address is in use by another machine. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* net/tftp: sparse fixesKim Phillips2013-06-24-6/+6
| | | | | | | | | | tftp.c:464:17: warning: cast to restricted __be16 tftp.c:552:29: warning: cast to restricted __be16 tftp.c:640:33: warning: cast to restricted __be16 tftp.c:642:25: warning: cast to restricted __be16 Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Cc: Joe Hershberger <joe.hershberger@gmail.com>
* net: nfs: add dynamic wait periodMatthias Brugger2013-06-24-21/+53
| | | | | | | | | | | | | | | This patch tackles the time out problem which leads to break the boot process, when loading file over nfs. The patch does two things. First of all, we just ignore messages that arrive with a rpc_id smaller then the client id. We just interpret this messages as answers to formaly timed out messages. Second, when a time out occurs we double the time to wait, so that we do not stress the server resending the last message. Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Tested-by: Enric Balletbo i Serra <eballetbo@gmail.com>
* NET: Fix system hanging if NET device is not installedJim Lin2013-06-19-1/+2
| | | | | | | | | | | | | If we try to boot from NET device, NetInitLoop in net.c will be invoked. If NET device is not installed, eth_get_dev() function will return eth_current value, which is NULL. When NetInitLoop is called, "eth_get_dev->enetaddr" will access restricted memory area and therefore cause hanging. This issue is found on Tegra30 Cardhu platform after adding CONFIG_CMD_NET and CONFIG_CMD_DHCP in config header file. Signed-off-by: Jim Lin <jilin@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com>
* net: Use new numeric setenv functionsSimon Glass2013-02-28-6/+2
| | | | | | Use setenv_ulong(), setenv_hex() and setenv_addr() in net/ Signed-off-by: Simon Glass <sjg@chromium.org>
* net: Fix endianness bug in link-localJoe Hershberger2012-12-15-1/+1
| | | | | | | The ip is stored in network order, so we can't test it in host order. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Kim Phillips <kim.phillips@freescale.com>
* net: Add tftp speed indicationSimon Glass2012-12-15-0/+8
| | | | | | | | | | | | | | | | | This prints a tftp speed indication after the download completes. This is the 3.6 MiB/s indicator below. Tegra2 (SeaBoard) # tftp ... Using asx0 device TFTP from server 172.22.72.144; our IP address is 172.22.73.81 Filename '/tftpboot/uImage-user-seaboard-1'. Load address: 0x408000 Loading: ################################################# 3.6 MiB/s done Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
* env: Add a bootfile env handlerJoe Hershberger2012-12-13-0/+17
| | | | | | Remove the hard-coded bootfile handler and use a callback instead Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* env: Use getenv_yesno() more generallyJoe Hershberger2012-12-13-17/+15
| | | | | | | Move the getenv_yesno() to env_common.c and change most checks for 'y' or 'n' to use this helper. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* net/: sparse fixesKim Phillips2012-11-04-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | bootp.c:44:14: warning: symbol 'dhcp_state' was not declared. Should it be static? bootp.c:45:15: warning: symbol 'dhcp_leasetime' was not declared. Should it be static? bootp.c:46:10: warning: symbol 'NetDHCPServerIP' was not declared. Should it be static? arp.c:30:17: warning: symbol 'NetArpWaitReplyIP' was not declared. Should it be static? arp.c:37:16: warning: symbol 'NetArpTxPacket' was not declared. Should it be static? arp.c:38:17: warning: symbol 'NetArpPacketBuf' was not declared. Should it be static? atheros.c:33:19: warning: symbol 'AR8021_driver' was not declared. Should it be static? net.c:183:7: warning: symbol 'PktBuf' was not declared. Should it be static? net.c:159:21: warning: symbol 'net_state' was not declared. Should it be static? ping.c:73:6: warning: symbol 'ping_start' was not declared. Should it be static? ping.c:82:13: warning: symbol 'ping_receive' was not declared. Should it be static? tftp.c:53:7: warning: symbol 'TftpRRQTimeoutMSecs' was not declared. Should it be static? tftp.c:54:5: warning: symbol 'TftpRRQTimeoutCountMax' was not declared. Should it be static? eth.c:125:19: warning: symbol 'eth_current' was not declared. Should it be static? Note: in the ping.c fix, commit a36b12f95a29647a06b5459198684fc142482020 "net: Move PING out of net.c" mistakenly carried the ifdef CMD_PING clause from when it was necessary to avoid warnings when it was embedded in net.c. Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
* Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini2012-10-04-6/+21
|\
| * OMAP: networking support for SPLIlya Yanok2012-10-01-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for networking in SPL. Some devices are capable of loading SPL via network so it makes sense to load the main U-Boot binary via network too. This patch tries to use existing network code as much as possible. Unfortunately, it depends on environment which in turn depends on other code so SPL size is increased significantly. No effort was done to decouple network code and environment so far. Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
| * net/bootp: add VCI support for BOOTP alsoIlya Yanok2012-10-01-6/+16
| | | | | | | | | | | | | | | | | | Vendor Class Identifier option is common to BOOTP and DHCP and can be useful without PXE. So send VCI in both BOOTP and DHCP requests if CONFIG_BOOTP_VCI_STRING is defined. Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com> Signed-off-by: Tom Rini <trini@ti.com>
* | net: fix netconsole filteringJoe Hershberger2012-10-03-1/+1
|/ | | | | | | | | | Adjustment of Michael Walle's fix patch Commit 8a0eccb1056b313b45ab62e3aac400f339aa71b4 breaks netconsole. src_ip must not be converted to host byte order, because nc_ip is already stored in network byte order (see string_to_ip(), called by getenv_IPaddr()). Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* net: Quietly ignore DHCP Option 28 (Broadcast Address)Brian Rzycki2012-09-27-0/+2
| | | | | | | | | | | | | | Some DHCP servers (notably dnsmasq) always transmit DHCP Option 28, Broadcast Address as specified in RFC 2132. Without this patch u-boot displays the warning: *** Unhandled DHCP Option in OFFER/ACK: 28 The patch suppresses the warning and ignores DHCP Option 28. There is no environment variable to set the broadcast address into and if for some reason u-boot needs the broadcast it can be calculated from ipaddr and netmask. Signed-off-by: Brian Rzycki <bmr@freescale.com>
* net: eth_write_hwaddr: Return error for invalid MACsBenoît Thébaudeau2012-09-27-2/+5
| | | | | | | | | If dev->enetaddr was supposed to be set with dev->write_hwaddr() but the MAC address was not valid, return an error. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Joe Hershberger <joe.hershberger@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org>
* net: Filter incoming netconsole packets by IPJoe Hershberger2012-09-24-0/+1
| | | | | | | Check the incoming packets' source IP address... if ncip isn't set to a broadcast address, only listen to the client at ncip. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* net: Improve the speed of netconsoleJoe Hershberger2012-09-24-12/+22
| | | | | | | | | | | | | | | | | | | Previously u-boot would initialize the network interface for every network operation and then shut it down again. This makes sense for most operations where the network in not known to be needed soon after the operation is complete. In the case of netconsole, it will use the network for every interaction with the shell or every printf. This means that the network is being reinitialized very often. On many devices, this intialization is very slow. This patch checks for consecutive netconsole actions and leaves the ethernet hardware initialized between them. It will still behave the same old way for all other network operations and any time another network operation happens between netconsole operations. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
* net: bugfix: NetSetTimeout assumes CONFIG_SYS_HZ=1000Tetsuyuki Kobayashi2012-09-24-1/+1
| | | | | | NetSetTimeout sets incorrect value to timeDelta when CONFIG_SYS_HZ != 1000. Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
* api: net: fix length check in eth_receive()Michael Walle2012-09-24-4/+1
| | | | | | | | | | | | | | | If the requested length is too small to hold the received packet, eth_receive() will return -1 and will leave the packet in the receive buffers. Instead of returning an error in this case, we return the first portion of the received packet and remove it from the receive buffers. This fixes FreeBSD's ubldr. Without this patch it will just stop receiving packets if the NIC receives more than PKTBUFSRX too large packets. Signed-off-by: Michael Walle <michael@walle.cc> Cc: Joe Hershberger <joe.hershberger@gmail.com> Cc: Rafal Jaworowski <raj@semihalf.com> Cc: Piotr Kruszynski <ppk@semihalf.com>
* Merge branch 'next' of git://git.denx.de/u-bootWolfgang Denk2012-07-30-2/+20
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'next' of git://git.denx.de/u-boot: MPC8xx: Fixup warning in arch/powerpc/cpu/mpc8xx/cpu.c doc: cleanup - move board READMEs into respective board directories net: sh_eth: add support for SH7757's GETHER net: sh_eth: modify the definitions of regsiter net: sh_eth: add SH_ETH_TYPE_ condition net: sh_eth: clean up for the SH7757's code net: fec_mxc: Fix MDC for xMII net: fec_mxc: Fix setting of RCR for xMII net: nfs: make NFS_TIMEOUT configurable net: Inline the new eth_setenv_enetaddr_by_index function net: allow setting env enetaddr from net device setting net/designware: Consecutive writes to the same register to be avoided CACHE: net: asix: Fix asix driver to work with data cache on net: phy: micrel: make ksz9021 phy accessible net: abort network initialization if the PHY driver fails phylib: phy_startup() should return an error code on failure net: tftp: fix type of block arg to store_block Signed-off-by: Wolfgang Denk <wd@denx.de>
| * net: nfs: make NFS_TIMEOUT configurableTetsuyuki Kobayashi2012-07-12-1/+5
| | | | | | | | | | | | | | NFS_TIMEOUT is constant value defined in net/nfs.c. But sometimes it needs to adjust. This patch enables to override NFS_TIMEOUT by defining CONFIG_NFS_TIMEOUT in a board specific config file. Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
| * Merge branch 'next' of git://git.denx.de/u-boot-net into nextWolfgang Denk2012-07-12-1/+15
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'next' of git://git.denx.de/u-boot-net: net: Inline the new eth_setenv_enetaddr_by_index function net: allow setting env enetaddr from net device setting net/designware: Consecutive writes to the same register to be avoided CACHE: net: asix: Fix asix driver to work with data cache on net: phy: micrel: make ksz9021 phy accessible net: abort network initialization if the PHY driver fails phylib: phy_startup() should return an error code on failure net: tftp: fix type of block arg to store_block Signed-off-by: Wolfgang Denk <wd@denx.de>
| | * net: Inline the new eth_setenv_enetaddr_by_index functionJoe Hershberger2012-07-11-1/+1
| | | | | | | | | | | | | | | | | | This function is currently only used in one case. Inline for now. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
| | * net: allow setting env enetaddr from net device settingRob Herring2012-07-11-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the net driver has setup a valid ethernet address and an ethernet address is not set in the environment already, then set the environment variables from the net driver setting. This enables pxe booting on boards which don't set ethaddr env variable. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
| | * net: tftp: fix type of block arg to store_blockJayachandran Chandrasekharan Nair2012-07-11-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The block argument for store_block can be -1 when the tftp sequence number rolls over (i.e TftpBlock == 0), so the first argument to store_block has to be of type 'int' instead of 'unsigned'. In our environment (gcc 4.4.5 mips toolchain), this causes incorrect 'offset' to be generated for storing the block, and the tftp block with number 0 will be written elsewhere, resulting in a bad block in the downloaded file and a memory corruption. Signed-off-by: Jayachandran Chandrasekharan Nair <jayachandranc@netlogicmicro.com>
* | | net: Make sure the ethaddr is updated in net_init()Joe Hershberger2012-07-24-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NetConsole may call NetSendUDPPacket before NetLoop is called. This will cause the source MAC address (NetOurEther) to be wrong. Instead of only changing it in NetLoop, move it to NetLoopInit so that it is also updated when net_init() is called (especially by nc_start()). Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reported-by: Michael Walle <michael@walle.cc> Acked-by: Michael Walle <michael@walle.cc>
* | | net: link_local: fix buildbenoit.thebaudeau@advans2012-07-19-3/+3
| | | | | | | | | | | | | | | | | | | | | Fix comment within comment build error. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Joe Hershberger <joe.hershberger@gmail.com>
* | | net: bootp: fix buildbenoit.thebaudeau@advans2012-07-19-1/+1
|/ / | | | | | | | | | | | | Fix NetSetState function name used with CONFIG_BOOTP_MAY_FAIL. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Joe Hershberger <joe.hershberger@gmail.com>
* | net: fix typo in arp clean upMike Frysinger2012-07-10-1/+1
|/ | | | | | | | | | The clean up patch missed an &, so we end up passing an int rather than a pointer to the sprintf function. arp.c: In function 'ArpReceive': arp.c:197: warning: format '%p' expects type 'void *', but argument 3 has type 'int' Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Minor Coding Style cleanupWolfgang Denk2012-07-10-2/+3
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* net: make net_rand.h inclusion depend on BOOTP_RANDOM_DELAYKim Phillips2012-07-08-1/+3
| | | | | | | | | | | | | | | | | | | | commit "net: use common rand()/srand() functions" introduced the following build warning on the current u-boot-arm tree: $ ./MAKEALL MPC8313ERDB_66 Configuring for MPC8313ERDB_66 - Board: MPC8313ERDB, Options: SYS_66MHZ text data bss dec hex filename 271988 13976 41768 327732 50034 ./u-boot In file included from bootp.c:15:0: net_rand.h: In function 'srand_mac': net_rand.h:40:2: warning: implicit declaration of function 'srand' [-Wimplicit-function-declaration] adding this dependency fixes it. Cc: Michael Walle <michael@walle.cc> Cc: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Acked-by: Michael Walle <michael@walle.cc>
* net: add helper to generate random mac addressMichael Walle2012-07-07-0/+22
| | | | | | | | Add new function eth_random_enetaddr() to generate a locally administered ethernet address. Signed-off-by: Michael Walle <michael@walle.cc> Acked-by: Joe Hershberger <joe.hershberger@gmail.com>
* net: use common rand()/srand() functionsMichael Walle2012-07-07-80/+28
| | | | | | | | | Replace rand() with the functions from lib/. The link-local network code stores its own seed, derived from the MAC address. Thus making it independent from calls to srand() in other modules. Signed-off-by: Michael Walle <michael@walle.cc> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* net: Allow filtering on debug traces in the net subsystemJoe Hershberger2012-05-23-31/+52
| | | | | | | | | | | | Add several levels of DEBUG prints so that you can limit the noise to the severety of your problem. DEBUG_LL_STATE = Link local state machine changes DEBUG_DEV_PKT = Packets or info directed to the device DEBUG_NET_PKT = Packets on info on the network at large DEBUG_INT_STATE = Internal network state changes Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* net: Work-around for brain-damaged Cisco equipment with arp-proxyJoe Hershberger2012-05-23-0/+14
| | | | | | | | | | | | | | | | | | Cisco's arp-proxy feature fails to ignore the link-local address range This means that a link-local device on a network with this Cisco equipment will reply to ARP requests for our device (in addition to our reply). If we happen to reply first, the requester's ARP table will be populated with our MAC address, and one packet will be sent to us... shortly following this, the requester will get an ARP reply from the Cisco equipment telling the requester to send packets their way instead of to our device from now on. This work-around detects this link-local condition and will delay replying to the ARP request for 5ms so that the first packet is sent to the Cisco equipment and all following packets are sent to our device. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* net: Add link-local addressing supportJoe Hershberger2012-05-23-1/+372
| | | | | | | Code based on networking/zcip.c in busybox commit 8531d76a15890c2c535908ce888b2e2aed35b172 Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
generated by cgit v1.1 at 2024-12-30 17:26:12 +0000