From 2c8fe5120f8da013cbd789be2f10cce880972836 Mon Sep 17 00:00:00 2001 From: Joe Hershberger Date: Tue, 31 Jul 2012 06:09:17 +0000 Subject: [PATCH] net: Make the netconsole buffer size configurable Allow a board to configure a larger buffer for netconsole, but leave the default. Signed-off-by: Joe Hershberger Cc: Mike Frysinger Acked-by: Mike Frysinger --- doc/README.NetConsole | 2 ++ drivers/net/netconsole.c | 8 ++++++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/doc/README.NetConsole b/doc/README.NetConsole index 070e86a..af7fc60 100644 --- a/doc/README.NetConsole +++ b/doc/README.NetConsole @@ -6,6 +6,8 @@ serial and network input/output devices by adjusting the 'stdin' and set either of these variables to "nc". Input and output can be switched independently. +CONFIG_NETCONSOLE_BUFFER_SIZE - Override the default buffer size + We use an environment variable 'ncip' to set the IP address and the port of the destination. The format is :. If is omitted, the value of 6666 is used. If the env var doesn't exist, the diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index 86f5301..8fcf31c 100644 --- a/drivers/net/netconsole.c +++ b/drivers/net/netconsole.c @@ -28,7 +28,11 @@ DECLARE_GLOBAL_DATA_PTR; -static char input_buffer[512]; +#ifndef CONFIG_NETCONSOLE_BUFFER_SIZE +#define CONFIG_NETCONSOLE_BUFFER_SIZE 512 +#endif + +static char input_buffer[CONFIG_NETCONSOLE_BUFFER_SIZE]; static int input_size; /* char count in input buffer */ static int input_offset; /* offset to valid chars in input buffer */ static int input_recursion; @@ -214,7 +218,7 @@ static void nc_puts(const char *s) len = strlen(s); while (len) { - int send_len = min(len, 512); + int send_len = min(len, sizeof(input_buffer)); nc_send_packet(s, send_len); len -= send_len; s += send_len;