/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the
+ * License may not be used to create, or enable the creation or
+ * redistribution of, unlawful or unlicensed copies of an Apple operating
+ * system, or to circumvent, violate, or enable the circumvention or
+ * violation of, any terms of an Apple operating system software license
+ * agreement.
*
- * @APPLE_LICENSE_HEADER_START@
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
*/
/*
* Copyright (c) 1992,7 NeXT Computer, Inc.
#include <sys/mbuf.h>
#include <sys/systm.h>
#include <sys/tty.h>
-#include <sys/vnode.h>
-#include <sys/sysctl.h>
#include <dev/ppc/cons.h>
extern vm_map_t mb_map;
void bsd_bufferinit(void);
extern void md_prepare_for_shutdown(int, int, char *);
-int bsd_mbuf_cluster_reserve(void);
-
/*
* Declare these as initialized data so we can patch them.
*/
#ifdef NBUF
-int max_nbuf_headers = NBUF;
+int nbuf = NBUF;
int niobuf = NBUF / 2;
-int nbuf_hashelements = NBUF;
-int nbuf = NBUF;
+
#else
-int max_nbuf_headers = 0;
+int nbuf = 0;
int niobuf = 0;
-int nbuf_hashelements = 0;
-int nbuf = 0;
-#endif
-SYSCTL_INT (_kern, OID_AUTO, nbuf, CTLFLAG_RD, &nbuf, 0, "");
-SYSCTL_INT (_kern, OID_AUTO, maxnbuf, CTLFLAG_RW, &max_nbuf_headers, 0, "");
+#endif
-__private_extern__ int customnbuf = 0;
int srv = 0; /* Flag indicates a server boot when set */
int ncl = 0;
vm_size_t size;
kern_return_t ret;
- /* clip the number of buf headers upto 16k */
- if (max_nbuf_headers == 0)
- max_nbuf_headers = atop(sane_size / 50); /* Get 2% of ram, but no more than we can map */
- if ((customnbuf == 0) && (max_nbuf_headers > 16384))
- max_nbuf_headers = 16384;
- if (max_nbuf_headers < 256)
- max_nbuf_headers = 256;
-
- /* clip the number of hash elements to 200000 */
- if ( (customnbuf == 0 ) && nbuf_hashelements == 0) {
- nbuf_hashelements = atop(sane_size / 50);
- if (nbuf_hashelements > 200000)
- nbuf_hashelements = 200000;
- } else
- nbuf_hashelements = max_nbuf_headers;
+ if (nbuf == 0)
+ nbuf = atop(sane_size / 100); /* Get 1% of ram, but no more than we can map */
+ if (nbuf > 8192)
+ nbuf = 8192;
+ if (nbuf < 256)
+ nbuf = 256;
if (niobuf == 0)
- niobuf = max_nbuf_headers;
+ niobuf = nbuf;
if (niobuf > 4096)
niobuf = 4096;
if (niobuf < 128)
niobuf = 128;
- size = (max_nbuf_headers + niobuf) * sizeof(struct buf);
+ size = (nbuf + niobuf) * sizeof(struct buf);
size = round_page(size);
ret = kmem_suballoc(kernel_map,
buf = (struct buf *) firstaddr;
bzero(buf, size);
- {
+ if (sane_size > (64 * 1024 * 1024) || ncl) {
int scale;
- nmbclusters = bsd_mbuf_cluster_reserve() / MCLBYTES;
-
+ if ((nmbclusters = ncl) == 0) {
+ if ((nmbclusters = ((sane_size / 16)/MCLBYTES)) > 32768)
+ nmbclusters = 32768;
+ }
if ((scale = nmbclusters / NMBCLUSTERS) > 1) {
tcp_sendspace *= scale;
tcp_recvspace *= scale;
tcp_recvspace = 32 * 1024;
}
}
-
- /*
- * Size vnodes based on memory
- * Number vnodes is (memsize/64k) + 1024
- * This is the calculation that is used by launchd in tiger
- * we are clipping the max based on 16G
- * ie ((16*1024*1024*1024)/(64 *1024)) + 1024 = 263168;
- */
- desiredvnodes = (sane_size/65536) + 1024;
- if (desiredvnodes > 263168)
- desiredvnodes = 263168;
}
void
*/
bufinit();
}
-
-/*
- * this has been broken out into a separate routine that
- * can be called from the x86 early vm initialization to
- * determine how much lo memory to reserve on systems with
- * DMA hardware that can't fully address all of the physical
- * memory that is present.
- */
-int
-bsd_mbuf_cluster_reserve(void)
-{
- if (sane_size > (64 * 1024 * 1024) || ncl) {
-
- if ((nmbclusters = ncl) == 0) {
- if ((nmbclusters = ((sane_size / 16)/MCLBYTES)) > 32768)
- nmbclusters = 32768;
- }
- }
-
- return (nmbclusters * MCLBYTES);
-}
projects / apple / xnu.git / blobdiff