diff options
Diffstat (limited to 'freebsd/sys/netinet/tcp_hostcache.c')
| -rw-r--r-- | freebsd/sys/netinet/tcp_hostcache.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/freebsd/sys/netinet/tcp_hostcache.c b/freebsd/sys/netinet/tcp_hostcache.c index 352df1dd..69cb1a74 100644 --- a/freebsd/sys/netinet/tcp_hostcache.c +++ b/freebsd/sys/netinet/tcp_hostcache.c @@ -123,19 +123,19 @@ static void tcp_hc_purge(void *); SYSCTL_NODE(_net_inet_tcp, OID_AUTO, hostcache, CTLFLAG_RW, 0, "TCP Host cache"); -SYSCTL_VNET_INT(_net_inet_tcp_hostcache, OID_AUTO, cachelimit, CTLFLAG_RDTUN, +SYSCTL_VNET_UINT(_net_inet_tcp_hostcache, OID_AUTO, cachelimit, CTLFLAG_RDTUN, &VNET_NAME(tcp_hostcache.cache_limit), 0, "Overall entry limit for hostcache"); -SYSCTL_VNET_INT(_net_inet_tcp_hostcache, OID_AUTO, hashsize, CTLFLAG_RDTUN, +SYSCTL_VNET_UINT(_net_inet_tcp_hostcache, OID_AUTO, hashsize, CTLFLAG_RDTUN, &VNET_NAME(tcp_hostcache.hashsize), 0, "Size of TCP hostcache hashtable"); -SYSCTL_VNET_INT(_net_inet_tcp_hostcache, OID_AUTO, bucketlimit, +SYSCTL_VNET_UINT(_net_inet_tcp_hostcache, OID_AUTO, bucketlimit, CTLFLAG_RDTUN, &VNET_NAME(tcp_hostcache.bucket_limit), 0, "Per-bucket hash limit for hostcache"); -SYSCTL_VNET_INT(_net_inet_tcp_hostcache, OID_AUTO, count, CTLFLAG_RD, +SYSCTL_VNET_UINT(_net_inet_tcp_hostcache, OID_AUTO, count, CTLFLAG_RD, &VNET_NAME(tcp_hostcache.cache_count), 0, "Current number of entries in hostcache"); @@ -176,6 +176,7 @@ static MALLOC_DEFINE(M_HOSTCACHE, "hostcache", "TCP hostcache"); void tcp_hc_init(void) { + u_int cache_limit; int i; /* @@ -184,23 +185,27 @@ tcp_hc_init(void) V_tcp_hostcache.cache_count = 0; V_tcp_hostcache.hashsize = TCP_HOSTCACHE_HASHSIZE; V_tcp_hostcache.bucket_limit = TCP_HOSTCACHE_BUCKETLIMIT; - V_tcp_hostcache.cache_limit = - V_tcp_hostcache.hashsize * V_tcp_hostcache.bucket_limit; V_tcp_hostcache.expire = TCP_HOSTCACHE_EXPIRE; V_tcp_hostcache.prune = TCP_HOSTCACHE_PRUNE; TUNABLE_INT_FETCH("net.inet.tcp.hostcache.hashsize", &V_tcp_hostcache.hashsize); - TUNABLE_INT_FETCH("net.inet.tcp.hostcache.cachelimit", - &V_tcp_hostcache.cache_limit); - TUNABLE_INT_FETCH("net.inet.tcp.hostcache.bucketlimit", - &V_tcp_hostcache.bucket_limit); if (!powerof2(V_tcp_hostcache.hashsize)) { printf("WARNING: hostcache hash size is not a power of 2.\n"); V_tcp_hostcache.hashsize = TCP_HOSTCACHE_HASHSIZE; /* default */ } V_tcp_hostcache.hashmask = V_tcp_hostcache.hashsize - 1; + TUNABLE_INT_FETCH("net.inet.tcp.hostcache.bucketlimit", + &V_tcp_hostcache.bucket_limit); + + cache_limit = V_tcp_hostcache.hashsize * V_tcp_hostcache.bucket_limit; + V_tcp_hostcache.cache_limit = cache_limit; + TUNABLE_INT_FETCH("net.inet.tcp.hostcache.cachelimit", + &V_tcp_hostcache.cache_limit); + if (V_tcp_hostcache.cache_limit > cache_limit) + V_tcp_hostcache.cache_limit = cache_limit; + /* * Allocate the hash table. */ @@ -626,7 +631,7 @@ sysctl_tcp_hc_list(SYSCTL_HANDLER_ARGS) msec(hc_entry->rmx_rtt * (RTM_RTTUNIT / (hz * TCP_RTT_SCALE))), msec(hc_entry->rmx_rttvar * - (RTM_RTTUNIT / (hz * TCP_RTT_SCALE))), + (RTM_RTTUNIT / (hz * TCP_RTTVAR_SCALE))), hc_entry->rmx_bandwidth * 8, hc_entry->rmx_cwnd, hc_entry->rmx_sendpipe, |