diff options
Diffstat (limited to 'sys/netinet/ip_input.c')
| -rw-r--r-- | sys/netinet/ip_input.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c index d91bcb0..8be51fb 100644 --- a/sys/netinet/ip_input.c +++ b/sys/netinet/ip_input.c @@ -327,8 +327,20 @@ ip_init(void) "error %d\n", __func__, i); #ifdef FLOWTABLE - TUNABLE_INT_FETCH("net.inet.ip.output_flowtable_size", - &V_ip_output_flowtable_size); + if (TUNABLE_INT_FETCH("net.inet.ip.output_flowtable_size", + &V_ip_output_flowtable_size)) { + if (V_ip_output_flowtable_size < 256) + V_ip_output_flowtable_size = 256; + if (!powerof2(V_ip_output_flowtable_size)) { + printf("flowtable must be power of 2 size\n"); + V_ip_output_flowtable_size = 2048; + } + } else { + /* + * round up to the next power of 2 + */ + V_ip_output_flowtable_size = 1 << fls((1024 + maxusers * 64)-1); + } V_ip_ft = flowtable_alloc("ipv4", V_ip_output_flowtable_size, FL_PCPU); #endif |
