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2015-04-18net: cosmetic: Fixup var names for DHCP stringsJoe Hershberger
Remove CamelCase variable naming. Move the definition to the same compilation unit as the primary use. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-18net: cosmetic: Fixup var names related to boot fileJoe Hershberger
The variables around the bootfile were inconsistent and used CamelCase. Update them to make the code more readable. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-18net: cosmetic: Change IPaddr_t to struct in_addrJoe Hershberger
This patch is simply clean-up to make the IPv4 type that is used match what Linux uses. It also attempts to move all variables that are IP addresses use good naming instead of CamelCase. No functional change. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-18dm: eth: Provide a way for drivers to manage packet buffersJoe Hershberger
Some drivers need a chance to manage their receive buffers after the packet has been handled by the network stack. Add an operation that will allow the driver to be called in that case. Reported-by: Simon Glass <sjg@chromium.org> Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> Tested-on: pcduino3
2015-04-18net: Improve error handlingJoe Hershberger
Take a pass at plumbing errors through to the users of the network stack Currently only the start() function errors will be returned from NetLoop(). recv() tends not to have errors, so that is likely not worth adding. send() certainly can return errors, but this patch does not attempt to plumb them yet. halt() is not expected to error. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18dm: eth: Add support for aliasesJoe Hershberger
Allow network devices to be referred to as "eth0" instead of "eth@12345678" when specified in ethact. Add tests to verify this behavior. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18dm: eth: Pass the packet pointer as a parameter to recvJoe Hershberger
Stop forcing drivers to call net_process_received_packet() - formerly called NetReceive(). Now the uclass will handle calling the driver for each packet until the driver errors or has nothing to return. The uclass will then pass the good packets off to the network stack by calling net_process_received_packet(). Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2015-04-18net: Clean up network stack names used in DM driversJoe Hershberger
Take the opportunity to enforce better names on newly written or retrofitted Ethernet drivers. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18dm: eth: Add basic driver model support to Ethernet stackJoe Hershberger
First just add support for MAC drivers. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18net: Remove the bd* parameter from net stack functionsJoe Hershberger
This value is not used by the network stack and is available in the global data, so stop passing it around. For the one legacy function that still expects it (init op on old Ethernet drivers) pass in the global pointer version directly to avoid changing that interface. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reported-by: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> (Trival fix to remove an unneeded variable declaration in 4xx_enet.c)
2015-04-18net: Use int instead of u8 for boolean flagJoe Hershberger
On some archs masking the parameter is inefficient, so don't use u8. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reported-by: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18net: Refactor in preparation for driver modelJoe Hershberger
Move some things around and organize things so that the driver model implementation will fit in more easily. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18net: Remove unneeded "extern" in net.hJoe Hershberger
Many of the functions in net.h were preceded extern needlessly. Removing them to limit the number of checkpatch.pl complaints. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18net: Provide a function to get the current MAC addressJoe Hershberger
The current implementation exposes the eth_device struct to code that needs to access the MAC address. Add a wrapper function for this to abstract away the pointer for this operation. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-03-24net: Add ethernet FCS length macro in net.hBin Meng
Some ethernet drivers use their own version of ethernet FCS length macro which is really common. We define ETH_FCS_LEN in net.h and replace those custom versions in various places. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-02-12net: Use new checksum functionsSimon Glass
Drop the old checksum functions in favour of the new ones. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-01-23net: Add a separate file for IP checksummingSimon Glass
Move the checksum code out into its own file so it can be used elsewhere. Also use a new version which supports a length which is not a multiple of 2 and add a new function to add two checksums. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-01-14net: Declare physical address as phys_addr_t unsigned typeMichal Simek
Use phys_addr_t instead of int for addresses. Addresses can't be < 0. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-10-10SPDX License cleanup for LiMon imported filesWolfgang Denk
A number of network related files were imported from the LiMon project; these contain a somewhat unclear license statement: Copyright 1994 - 2000 Neil Russell. (See License) I analyzed the source code of LiMon v1.4.2 which was used for this import. It does not contain any "License" file, but the top level directory contains a file "COPYING", which turns out to be GPL v2 of June 1991. So it is legitimate to conclude that the LiMon derived files are also to be released under GPLv2. Mark them as such. Signed-off-by: Wolfgang Denk <wd@denx.de>
2014-05-12net: rename and refactor eth_rand_ethaddr() functionMasahiro Yamada
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>
2013-11-22net: Fix mcast function pointer prototypeClaudiu Manoil
This fixes the following compiler warnings when activating CONFIG_MCAST_TFTP: tsec.c: In function 'tsec_mcast_addr': tsec.c:130:2: warning: passing argument 2 of 'ether_crc' makes pointer from integer without a cast [enabled by default] In file included from /work/u-boot-net/include/common.h:874:0, from tsec.c:15: /work/u-boot-net/include/net.h:189:5: note: expected 'const unsigned char *' but argument is of type 'u8' tsec.c: In function 'tsec_initialize': tsec.c:646:13: warning: assignment from incompatible pointer type [enabled by default] eth.c: In function 'eth_mcast_join': eth.c:358:2: warning: passing argument 2 of 'eth_current->mcast' makes integer from pointer without a cast [enabled by default] eth.c:358:2: note: expected 'u32' but argument is of type 'u8 *' In the eth_mcast_join() implementation, eth_current->mcast() takes a u8 pointer to the multicast mac address and not a ip address value as implied by its prototype. Fix parameter type mismatch for tsec_macst_addr() (tsec.c): ether_crc() takes a u8 pointer not a u8 value. mcast() is given a u8 pointer to the multicats mac address. Update parameter type for the rest of mcast() instances. Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com> Patch: 278989
2013-08-19net.h: don't use the reserved name __unusedJeroen Hofstee
The __* keywords are reserved. On FreeBSD __unused evaluates to the attribute unused, causing a compilation failure. Just use unused instead. Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl> cc: joe.hershberger@gmail.com
2013-06-24net: make IPaddr type big endianKim Phillips
for use with sparse. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Cc: Joe Hershberger <joe.hershberger@gmail.com>
2013-06-04net: Add prototype for update_tftpSimon Glass
This function should be declared in net.h. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2012-11-04net/: sparse fixesKim Phillips
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>
2012-09-24net: Filter incoming netconsole packets by IPJoe Hershberger
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>
2012-09-24net: Improve the speed of netconsoleJoe Hershberger
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>
2012-07-07net: add helper to generate random mac addressMichael Walle
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>
2012-05-23net: Allow filtering on debug traces in the net subsystemJoe Hershberger
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>
2012-05-23net: Add link-local addressing supportJoe Hershberger
Code based on networking/zcip.c in busybox commit 8531d76a15890c2c535908ce888b2e2aed35b172 Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-23net: Don't copy every packet that waits for an ARPJoe Hershberger
Use the NetArpTxPacket for the ARP packet, not to hold what used to be in NetTxPacket. This saves a copy and makes the code easier to understand. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
2012-05-23net: Fix net buffer initializationJoe Hershberger
A new non-static function net_init() will initialize buffers and read from the environment. Only update from the env on each entry to NetLoop(). Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
2012-05-23net: Add net_update_ether() to handle ARP and Ping repliesJoe Hershberger
When the network is VLAN or SNAP, net_update_ether() will preserve the original Ethernet packet header and simply replace the src and dest MACs and the protocol Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
2012-05-23net: Refactor to separate the UDP handler from the ARP handlerJoe Hershberger
Call a built-in dummy if none is registered... don't require protocols to register a handler (eliminating dummies) NetConsole now uses the ARP handler when waiting on arp (instead of needing a #define hack in arp.c) Clear handlers at the end of net loop Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
2012-05-23net: Refactor to protect access to the NetState variableJoe Hershberger
Changes to NetState now go through an accessor function called net_set_state() Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-23net: Refactor to use NetSendPacket instead of eth_send directlyJoe Hershberger
Use this entry-point consistently across the net/ code Use a static inline function to preserve code size Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
2012-05-23net: Refactor IP, UPD, and ICMP header writing functionsJoe Hershberger
ICMP (ping) was reimplementing IP header code... it now shares code. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-05-23net: cosmetic: Replace magic numbers in arp.c with constantsJoe Hershberger
Use field names and sizes when accessing ARP packets Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-23net: cosmetic: Add a more explicit comment about 802.2Joe Hershberger
Make the comment more accurate about the header including SNAP Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
2012-05-23net: cosmetic: Rename parameter len to payload_lenJoe Hershberger
This name more explicitly claims that it does not include the header size Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
2012-05-23net: cosmetic: Un-typedef ICMP_tJoe Hershberger
Remove typedef and lower-case name Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-23net: cosmetic: Un-typedef ARP_tJoe Hershberger
Remove typedef and lower-case letters Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-23net: cosmetic: Un-typedef VLAN_Ethernet_tJoe Hershberger
Eliminate the typedef and remove capital letters Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-23net: cosmetic: Un-typedef Ethernet_tJoe Hershberger
Separate the Ethernet header from the 802 header. Base the size constants on the structs. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-23net: cosmetic: Split struct ip_udp_hdr into ip_hdrJoe Hershberger
Add a structure that only contains IP header fields to be used by functions that don't need UDP Rename IP_HDR_SIZE_NO_UDP to IP_HDR_SIZE Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-23net: cosmetic: Un-typedef IP_tJoe Hershberger
Rename IP header related things to IP_UDP. The existing definition of IP_t includes UDP header, so name it to accurately describe the structure. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-23net: Move ARP out of net.cJoe Hershberger
Separate this functionality out of the net.c behemoth Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-05-23net: Encapsulate CDP packet identificationJoe Hershberger
Checking for CDP packets should be encapsulated, not copied code. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-23net: Move CDP out of net.cJoe Hershberger
Separate this functionality out of the net.c behemoth Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-15net: cosmetic: tftp.* checkpatch complianceJoe Hershberger
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>