/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2008 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <sys/param.h>
#include <sys/buf_internal.h>
+#include <sys/file_internal.h>
+#include <sys/proc_internal.h>
#include <sys/clist.h>
#include <sys/mbuf.h>
#include <sys/systm.h>
#include <sys/tty.h>
-#include <dev/ppc/cons.h>
+#include <sys/vnode.h>
+#include <sys/sysctl.h>
+#include <machine/cons.h>
+#include <pexpert/pexpert.h>
+#include <sys/socketvar.h>
extern vm_map_t mb_map;
-extern u_long tcp_sendspace;
-extern u_long tcp_recvspace;
+#if INET || INET6
+extern uint32_t tcp_sendspace;
+extern uint32_t tcp_recvspace;
+#endif
-void bsd_bufferinit(void);
+void bsd_bufferinit(void) __attribute__((section("__TEXT, initcode")));
extern void md_prepare_for_shutdown(int, int, char *);
+unsigned int bsd_mbuf_cluster_reserve(boolean_t *);
+void bsd_srv_setup(int);
+void bsd_exec_setup(int);
+
/*
* Declare these as initialized data so we can patch them.
*/
#ifdef NBUF
-int nbuf = NBUF;
-int niobuf = NBUF / 2;
-
+int max_nbuf_headers = NBUF;
+int niobuf_headers = NBUF / 2;
+int nbuf_hashelements = NBUF;
+int nbuf_headers = NBUF;
#else
-int nbuf = 0;
-int niobuf = 0;
-
+int max_nbuf_headers = 0;
+int niobuf_headers = 0;
+int nbuf_hashelements = 0;
+int nbuf_headers = 0;
#endif
+SYSCTL_INT (_kern, OID_AUTO, nbuf, CTLFLAG_RD, &nbuf_headers, 0, "");
+SYSCTL_INT (_kern, OID_AUTO, maxnbuf, CTLFLAG_RW, &max_nbuf_headers, 0, "");
+
+__private_extern__ int customnbuf = 0;
int srv = 0; /* Flag indicates a server boot when set */
int ncl = 0;
+static unsigned int mbuf_poolsz;
vm_map_t buffer_map;
vm_map_t bufferhdr_map;
+static int vnodes_sized = 0;
-
-extern void bsd_startupearly(void);
+extern void bsd_startupearly(void) __attribute__((section("__TEXT, initcode")));
void
bsd_startupearly(void)
vm_size_t size;
kern_return_t ret;
- 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 = nbuf;
- if (niobuf > 4096)
- niobuf = 4096;
- if (niobuf < 128)
- niobuf = 128;
-
- size = (nbuf + niobuf) * sizeof(struct buf);
+ /* clip the number of buf headers upto 16k */
+ if (max_nbuf_headers == 0)
+ max_nbuf_headers = atop_kernel(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 < CONFIG_MIN_NBUF)
+ max_nbuf_headers = CONFIG_MIN_NBUF;
+
+ /* clip the number of hash elements to 200000 */
+ if ( (customnbuf == 0 ) && nbuf_hashelements == 0) {
+ nbuf_hashelements = atop_kernel(sane_size / 50);
+ if (nbuf_hashelements > 200000)
+ nbuf_hashelements = 200000;
+ } else
+ nbuf_hashelements = max_nbuf_headers;
+
+ if (niobuf_headers == 0)
+ niobuf_headers = max_nbuf_headers;
+ if (niobuf_headers > 4096)
+ niobuf_headers = 4096;
+ if (niobuf_headers < CONFIG_MIN_NIOBUF)
+ niobuf_headers = CONFIG_MIN_NIOBUF;
+
+ size = (max_nbuf_headers + niobuf_headers) * sizeof(struct buf);
size = round_page(size);
ret = kmem_suballoc(kernel_map,
if (ret != KERN_SUCCESS)
panic("Failed to allocate bufferhdr_map");
- buf = (struct buf *) firstaddr;
- bzero(buf, size);
+ buf_headers = (struct buf *) firstaddr;
+ bzero(buf_headers, size);
- if (sane_size > (64 * 1024 * 1024) || ncl) {
+#if SOCKETS
+ {
+#if CONFIG_USESOCKTHRESHOLD
+ static const unsigned int maxspace = 64 * 1024;
+#else
+ static const unsigned int maxspace = 128 * 1024;
+#endif
int scale;
- if ((nmbclusters = ncl) == 0) {
- if ((nmbclusters = ((sane_size / 16)/MCLBYTES)) > 32768)
- nmbclusters = 32768;
- }
+ nmbclusters = bsd_mbuf_cluster_reserve(NULL) / MCLBYTES;
+
+#if INET || INET6
if ((scale = nmbclusters / NMBCLUSTERS) > 1) {
tcp_sendspace *= scale;
tcp_recvspace *= scale;
- if (tcp_sendspace > (32 * 1024))
- tcp_sendspace = 32 * 1024;
- if (tcp_recvspace > (32 * 1024))
- tcp_recvspace = 32 * 1024;
+ if (tcp_sendspace > maxspace)
+ tcp_sendspace = maxspace;
+ if (tcp_recvspace > maxspace)
+ tcp_recvspace = maxspace;
}
+#endif /* INET || INET6 */
+ }
+#endif /* SOCKETS */
+
+ if (vnodes_sized == 0) {
+ /*
+ * 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;
+ * CONFIG_VNODES is set to 263168 for "medium" configurations (the default)
+ * but can be smaller or larger.
+ */
+ desiredvnodes = (sane_size/65536) + 1024;
+ if (desiredvnodes > CONFIG_VNODES)
+ desiredvnodes = CONFIG_VNODES;
}
}
{
kern_return_t ret;
- cons.t_dev = makedev(12, 0);
+ /*
+ * Note: Console device initialized in kminit() from bsd_autoconf()
+ * prior to call to us in bsd_init().
+ */
bsd_startupearly();
+#if SOCKETS
ret = kmem_suballoc(kernel_map,
(vm_offset_t *) & mbutl,
(vm_size_t) (nmbclusters * MCLBYTES),
if (ret != KERN_SUCCESS)
panic("Failed to allocate mb_map\n");
+#endif /* SOCKETS */
/*
* Set up buffers, so they can be used to read disk labels.
*/
bufinit();
}
+
+/* 512 MB (K32) or 2 GB (K64) hard limit on size of the mbuf pool */
+#if !defined(__LP64__)
+#define MAX_MBUF_POOL (512 << MBSHIFT)
+#else
+#define MAX_MBUF_POOL (2ULL << GBSHIFT)
+#endif /* !__LP64__ */
+#define MAX_NCL (MAX_MBUF_POOL >> MCLSHIFT)
+
+/*
+ * 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.
+ */
+unsigned int
+bsd_mbuf_cluster_reserve(boolean_t *overridden)
+{
+ 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("srv", &srv, sizeof (srv));
+ (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 || srv)
+ was_overridden = TRUE;
+
+ if ((nmbclusters = ncl) == 0) {
+ /* Auto-configure the mbuf pool size */
+ nmbclusters = mbuf_default_ncl(srv, sane_size);
+ } 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;
+ }
+ }
+ mbuf_poolsz = nmbclusters << MCLSHIFT;
+done:
+ if (overridden)
+ *overridden = was_overridden;
+
+ return (mbuf_poolsz);
+}
+#if defined(__LP64__)
+extern int tcp_tcbhashsize;
+extern int max_cached_sock_count;
+void IOSleep(int);
+#endif
+
+
+void
+bsd_srv_setup(int scale)
+{
+#if defined(__LP64__)
+ /* if memory is more than 16G, then apply rules for processes */
+ if (scale > 0) {
+ maxproc = 2500 * scale;
+ hard_maxproc = maxproc;
+ /* no fp usage */
+ maxprocperuid = (maxproc*3)/4;
+ maxfiles = (150000 * scale);
+ maxfilesperproc = maxfiles/2;
+ desiredvnodes = maxfiles;
+ vnodes_sized = 1;
+ if (scale > 4) {
+ /* clip them at 32G level */
+ somaxconn = 2048;
+ /* 64G or more the hash size is 32k */
+ if (scale > 7) {
+ /* clip at 64G level */
+ tcp_tcbhashsize = 16 *1024;
+ max_cached_sock_count = 165000;
+ } else {
+ tcp_tcbhashsize = 32 *1024;
+ max_cached_sock_count = 60000 + ((scale-1) * 15000);
+ }
+ } else {
+ somaxconn = 512*scale;
+ tcp_tcbhashsize = 4*1024*scale;
+ max_cached_sock_count = 60000 + ((scale-1) * 15000);
+ }
+ }
+#endif
+ bsd_exec_setup(scale);
+}
+
projects / apple / xnu.git / blobdiff