diff options
Diffstat (limited to '')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 5 | ||||
| -rw-r--r-- | net/ipv4/ipconfig.c | 27 |
2 files changed, 27 insertions, 5 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index b799bcf67d7b..7afb2fedde0a 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -461,6 +461,11 @@ possible to determine what the correct size should be. This option provides an override for these situations. + carrier_timeout= + [NET] Specifies amount of time (in seconds) that + the kernel should wait for a network carrier. By default + it waits 120 seconds. + ca_keys= [KEYS] This parameter identifies a specific key(s) on the system trusted keyring to be used for certificate trust validation. diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index b9a9873c25c6..9bcca08efec9 100644 --- a/net/ipv4/ipconfig.c +++ b/net/ipv4/ipconfig.c @@ -85,7 +85,6 @@ /* Define the friendly delay before and after opening net devices */ #define CONF_POST_OPEN 10 /* After opening: 10 msecs */ -#define CONF_CARRIER_TIMEOUT 120000 /* Wait for carrier timeout */ /* Define the timeout for waiting for a DHCP/BOOTP/RARP reply */ #define CONF_OPEN_RETRIES 2 /* (Re)open devices twice */ @@ -101,6 +100,9 @@ #define NONE cpu_to_be32(INADDR_NONE) #define ANY cpu_to_be32(INADDR_ANY) +/* Wait for carrier timeout default in seconds */ +static unsigned int carrier_timeout = 120; + /* * Public IP configuration */ @@ -268,9 +270,9 @@ static int __init ic_open_devs(void) /* wait for a carrier on at least one device */ start = jiffies; - next_msg = start + msecs_to_jiffies(CONF_CARRIER_TIMEOUT/12); + next_msg = start + msecs_to_jiffies(20000); while (time_before(jiffies, start + - msecs_to_jiffies(CONF_CARRIER_TIMEOUT))) { + msecs_to_jiffies(carrier_timeout * 1000))) { int wait, elapsed; for_each_netdev(&init_net, dev) @@ -283,9 +285,9 @@ static int __init ic_open_devs(void) continue; elapsed = jiffies_to_msecs(jiffies - start); - wait = (CONF_CARRIER_TIMEOUT - elapsed + 500)/1000; + wait = (carrier_timeout * 1000 - elapsed + 500) / 1000; pr_info("Waiting up to %d more seconds for network.\n", wait); - next_msg = jiffies + msecs_to_jiffies(CONF_CARRIER_TIMEOUT/12); + next_msg = jiffies + msecs_to_jiffies(20000); } have_carrier: rtnl_unlock(); @@ -1780,3 +1782,18 @@ static int __init vendor_class_identifier_setup(char *addrs) return 1; } __setup("dhcpclass=", vendor_class_identifier_setup); + +static int __init set_carrier_timeout(char *str) +{ + ssize_t ret; + + if (!str) + return 0; + + ret = kstrtouint(str, 0, &carrier_timeout); + if (ret) + return 0; + + return 1; +} +__setup("carrier_timeout=", set_carrier_timeout); |