From 6900a64d3c03d04e8e59679c0a3a92a3c90c1875 Mon Sep 17 00:00:00 2001 From: Joe Hershberger Date: Wed, 20 May 2015 14:27:23 -0500 Subject: [PATCH] net: Use env callbacks for net variables Instead of checking for changes to the env each time we enter the net_loop, use the env callbacks to update the values of the variables. Don't update the variables when the source was programmatic, since the variables were the source of the new value. Signed-off-by: Joe Hershberger Reviewed-by: Simon Glass --- include/env_callback.h | 22 ++++++++- net/net.c | 105 ++++++++++++++++++++++++++++++++++------- 2 files changed, 110 insertions(+), 17 deletions(-) diff --git a/include/env_callback.h b/include/env_callback.h index 3de1093ff1..91f3cc013c 100644 --- a/include/env_callback.h +++ b/include/env_callback.h @@ -37,6 +37,26 @@ #define ENV_DOT_ESCAPE #endif +#ifdef CONFIG_CMD_DNS +#define DNS_CALLBACK "dnsip:dnsip," +#else +#define DNS_CALLBACK +#endif + +#ifdef CONFIG_NET +#define NET_CALLBACKS \ + "bootfile:bootfile," \ + "ipaddr:ipaddr," \ + "gatewayip:gatewayip," \ + "netmask:netmask," \ + "serverip:serverip," \ + "nvlan:nvlan," \ + "vlan:vlan," \ + DNS_CALLBACK +#else +#define NET_CALLBACKS +#endif + /* * This list of callback bindings is static, but may be overridden by defining * a new association in the ".callbacks" environment variable. @@ -44,7 +64,7 @@ #define ENV_CALLBACK_LIST_STATIC ENV_DOT_ESCAPE ENV_CALLBACK_VAR ":callbacks," \ ENV_DOT_ESCAPE ENV_FLAGS_VAR ":flags," \ "baudrate:baudrate," \ - "bootfile:bootfile," \ + NET_CALLBACKS \ "loadaddr:loadaddr," \ SILENT_CALLBACK \ SPLASHIMAGE_CALLBACK \ diff --git a/net/net.c b/net/net.c index f8bf252f87..552d8d17ba 100644 --- a/net/net.c +++ b/net/net.c @@ -208,6 +208,9 @@ int __maybe_unused net_busy_flag; static int on_bootfile(const char *name, const char *value, enum env_op op, int flags) { + if (flags & H_PROGRAMMATIC) + return 0; + switch (op) { case env_op_create: case env_op_overwrite: @@ -222,6 +225,92 @@ static int on_bootfile(const char *name, const char *value, enum env_op op, } U_BOOT_ENV_CALLBACK(bootfile, on_bootfile); +static int on_ipaddr(const char *name, const char *value, enum env_op op, + int flags) +{ + if (flags & H_PROGRAMMATIC) + return 0; + + net_ip = string_to_ip(value); + + return 0; +} +U_BOOT_ENV_CALLBACK(ipaddr, on_ipaddr); + +static int on_gatewayip(const char *name, const char *value, enum env_op op, + int flags) +{ + if (flags & H_PROGRAMMATIC) + return 0; + + net_gateway = string_to_ip(value); + + return 0; +} +U_BOOT_ENV_CALLBACK(gatewayip, on_gatewayip); + +static int on_netmask(const char *name, const char *value, enum env_op op, + int flags) +{ + if (flags & H_PROGRAMMATIC) + return 0; + + net_netmask = string_to_ip(value); + + return 0; +} +U_BOOT_ENV_CALLBACK(netmask, on_netmask); + +static int on_serverip(const char *name, const char *value, enum env_op op, + int flags) +{ + if (flags & H_PROGRAMMATIC) + return 0; + + net_server_ip = string_to_ip(value); + + return 0; +} +U_BOOT_ENV_CALLBACK(serverip, on_serverip); + +static int on_nvlan(const char *name, const char *value, enum env_op op, + int flags) +{ + if (flags & H_PROGRAMMATIC) + return 0; + + net_native_vlan = string_to_vlan(value); + + return 0; +} +U_BOOT_ENV_CALLBACK(nvlan, on_nvlan); + +static int on_vlan(const char *name, const char *value, enum env_op op, + int flags) +{ + if (flags & H_PROGRAMMATIC) + return 0; + + net_our_vlan = string_to_vlan(value); + + return 0; +} +U_BOOT_ENV_CALLBACK(vlan, on_vlan); + +#if defined(CONFIG_CMD_DNS) +static int on_dnsip(const char *name, const char *value, enum env_op op, + int flags) +{ + if (flags & H_PROGRAMMATIC) + return 0; + + net_dns_server = string_to_ip(value); + + return 0; +} +U_BOOT_ENV_CALLBACK(dnsip, on_dnsip); +#endif + /* * Check if autoload is enabled. If so, use either NFS or TFTP to download * the boot file. @@ -252,22 +341,6 @@ void net_auto_load(void) static void net_init_loop(void) { - static int env_changed_id; - int env_id = get_env_id(); - - /* update only when the environment has changed */ - if (env_changed_id != env_id) { - net_ip = getenv_ip("ipaddr"); - net_gateway = getenv_ip("gatewayip"); - net_netmask = getenv_ip("netmask"); - net_server_ip = getenv_ip("serverip"); - net_native_vlan = getenv_vlan("nvlan"); - net_our_vlan = getenv_vlan("vlan"); -#if defined(CONFIG_CMD_DNS) - net_dns_server = getenv_ip("dnsip"); -#endif - env_changed_id = env_id; - } if (eth_get_dev()) memcpy(net_ethaddr, eth_get_ethaddr(), 6); -- 2.39.2