[PATCH] net: add 'ethrotate' environment variable
This patch replaces the buildtime configuration option CONFIG_NET_DO_NOT_TRY_ANOTHER through the 'ethrotate' runtime configuration veriable. See README.
Signed-off-by: Matthias Fuchs matthias.fuchs@esd-electronics.com --- README | 4 ++++ net/eth.c | 9 +++++++++ 2 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/README b/README index f2a4914..d9c2ee2 100644 --- a/README +++ b/README @@ -2691,6 +2691,10 @@ Some configuration options can be set using Environment Variables: => setenv ethact SCC ETHERNET => ping 10.0.0.1 # traffic sent on SCC ETHERNET
+ ethrotate - When set to "no" U-Boot does not go through all + available network interfaces. + It just stays at the currently selected interface. + netretry - When set to "no" each network operation will either succeed or fail without retrying. When set to "once" the network operation will diff --git a/net/eth.c b/net/eth.c index 5d9e9c1..d55fd7e 100644 --- a/net/eth.c +++ b/net/eth.c @@ -522,6 +522,15 @@ int eth_receive(volatile void *packet, int length) void eth_try_another(int first_restart) { static struct eth_device *first_failed = NULL; + char *ethrotate; + + /* + * Do not rotate between network interfaces when + * 'ethrotate' variable is set to 'no'. + */ + if (((ethrotate = getenv ("ethrotate")) != NULL) && + (strcmp(ethrotate, "no") == 0)) + return;
if (!eth_current) return;