void
nmbclust_update(void)
{
/*
* Set the hard limit on the mclpool to the number of
* mbuf clusters the kernel is to support. Log the limit
* reached message max once a minute.
*/
(void)pool_sethardlimit(&mclpool, nmbclust, mclpool_warnmsg, 60);
pool_sethiwat(&mbpool, nmbclust);
}
/*
* Tcp initialization
*/
void
tcp_init()
{
tcp_iss = 1; /* wrong */
pool_init(&tcpcb_pool, sizeof(struct tcpcb), 0, 0, 0, "tcpcbpl",
NULL);
pool_init(&tcpqe_pool, sizeof(struct tcpqent), 0, 0, 0, "tcpqepl",
NULL);
pool_sethardlimit(&tcpqe_pool, tcp_reass_limit, NULL, 0);
#ifdef TCP_SACK
pool_init(&sackhl_pool, sizeof(struct sackhole), 0, 0, 0, "sackhlpl",
NULL);
pool_sethardlimit(&sackhl_pool, tcp_sackhole_limit, NULL, 0);
#endif /* TCP_SACK */
in_pcbinit(&tcbtable, tcbhashsize);
#ifdef INET6
/*
* Since sizeof(struct ip6_hdr) > sizeof(struct ip), we
* do max length checks/computations only on the former.
*/
if (max_protohdr < (sizeof(struct ip6_hdr) + sizeof(struct tcphdr)))
max_protohdr = (sizeof(struct ip6_hdr) + sizeof(struct tcphdr));
if ((max_linkhdr + sizeof(struct ip6_hdr) + sizeof(struct tcphdr)) >
MHLEN)
panic("tcp_init");
icmp6_mtudisc_callback_register(tcp6_mtudisc_callback);
#endif /* INET6 */
/* Initialize the compressed state engine. */
syn_cache_init();
/* Initialize timer state. */
tcp_timer_init();
}
void
nmbclust_update(void)
{
int i;
/*
* Set the hard limit on the mclpools to the number of
* mbuf clusters the kernel is to support. Log the limit
* reached message max once a minute.
*/
for (i = 0; i < nitems(mclsizes); i++) {
(void)pool_sethardlimit(&mclpools[i], nmbclust,
mclpool_warnmsg, 60);
/*
* XXX this needs to be reconsidered.
* Setting the high water mark to nmbclust is too high
* but we need to have enough spare buffers around so that
* allocations in interrupt context don't fail or mclgeti()
* drivers may end up with empty rings.
*/
pool_sethiwat(&mclpools[i], nmbclust);
}
pool_sethiwat(&mbpool, nmbclust);
}