+ int mbuf_pool = 0;
+ static boolean_t was_overridden = FALSE;
+
+ /* If called more than once, return the previously calculated size */
+ if (mbuf_poolsz != 0) {
+ goto done;
+ }
+
+ /*
+ * Some of these are parsed in parse_bsd_args(), but for x86 we get
+ * here early from i386_vm_init() and so we parse them now, in order
+ * to correctly compute the size of the low-memory VM pool. It is
+ * redundant but rather harmless.
+ */
+ (void) PE_parse_boot_argn("ncl", &ncl, sizeof(ncl));
+ (void) PE_parse_boot_argn("mbuf_pool", &mbuf_pool, sizeof(mbuf_pool));
+
+ /*
+ * Convert "mbuf_pool" from MB to # of 2KB clusters; it is
+ * equivalent to "ncl", except that it uses different unit.
+ */
+ if (mbuf_pool != 0) {
+ ncl = (mbuf_pool << MBSHIFT) >> MCLSHIFT;
+ }
+
+ if (sane_size > (64 * 1024 * 1024) || ncl != 0) {
+ if (ncl || serverperfmode) {
+ was_overridden = TRUE;
+ }
+
+ if ((nmbclusters = ncl) == 0) {
+ /* Auto-configure the mbuf pool size */
+ nmbclusters = mbuf_default_ncl(mem_actual);
+ } else {
+ /* Make sure it's not odd in case ncl is manually set */
+ if (nmbclusters & 0x1) {
+ --nmbclusters;
+ }
+
+ /* And obey the upper limit */
+ if (nmbclusters > MAX_NCL) {
+ nmbclusters = MAX_NCL;
+ }
+ }
+
+ /* Round it down to nearest multiple of PAGE_SIZE */
+ nmbclusters = (unsigned int)P2ROUNDDOWN(nmbclusters, NCLPG);
+ }
+ mbuf_poolsz = nmbclusters << MCLSHIFT;
+done:
+ if (overridden) {
+ *overridden = was_overridden;
+ }
+
+ return mbuf_poolsz;
+}
+#endif
+
+#if defined(__LP64__)
+extern int tcp_tcbhashsize;
+extern int max_cached_sock_count;
+#endif
+