xnu-7195.101.1.tar.gz

[apple/xnu.git] / bsd / dev / unix_startup.c

diff --git a/bsd/dev/unix_startup.c b/bsd/dev/unix_startup.c
index d3df771967f28895321f6bfc8bda0071bdf1a077..474da06aa73d2474d2f779faa9665376cb78b1c6 100644 (file)
--- a/bsd/dev/unix_startup.c
+++ b/bsd/dev/unix_startup.c
@@ -1,8 +1,8 @@
 /*
 /*

- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2014 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
  * @APPLE_OSREFERENCE_LICENSE_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
  * 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


@@ -11,10 +11,10 @@
  * 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.
  * 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.

- * 
+ *

  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ 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,
  * 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,


@@ -22,7 +22,7 @@
  * 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.
  * 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.

- * 
+ *

  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*


@@ -34,59 +34,74 @@
 
 #include <mach/mach_types.h>
 
 
 #include <mach/mach_types.h>
 

+#include <kern/startup.h>

 #include <vm/vm_kern.h>
 #include <mach/vm_prot.h>
 
 #include <sys/param.h>
 #include <sys/buf_internal.h>
 #include <vm/vm_kern.h>
 #include <mach/vm_prot.h>
 
 #include <sys/param.h>
 #include <sys/buf_internal.h>

-#include <sys/clist.h>
+#include <sys/file_internal.h>
+#include <sys/proc_internal.h>
+#include <sys/mcache.h>

 #include <sys/mbuf.h>
 #include <sys/systm.h>
 #include <sys/tty.h>
 #include <sys/vnode.h>
 #include <sys/sysctl.h>
 #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>
+#include <machine/cons.h>
+#include <pexpert/pexpert.h>
+#include <sys/socketvar.h>
+#include <pexpert/pexpert.h>
+#include <netinet/tcp_var.h>

 
 

+extern uint32_t kern_maxvnodes;

 extern vm_map_t mb_map;
 
 extern vm_map_t mb_map;
 

-#if INET || INET6
-extern u_long   tcp_sendspace;
-extern u_long   tcp_recvspace;
+#if INET
+extern uint32_t   tcp_sendspace;
+extern uint32_t   tcp_recvspace;

 #endif
 
 #endif
 

-void            bsd_bufferinit(void) __attribute__((section("__TEXT, initcode")));
-extern void     md_prepare_for_shutdown(int, int, char *);
+void            bsd_bufferinit(void);

 
 

-int            bsd_mbuf_cluster_reserve(void);
+unsigned int    bsd_mbuf_cluster_reserve(boolean_t *);
+void bsd_scale_setup(int);
+void bsd_exec_setup(int);

 
 /*
  * Declare these as initialized data so we can patch them.
  */
 
 
 /*
  * Declare these as initialized data so we can patch them.
  */
 

-#ifdef NBUF
+#ifdef  NBUF

 int             max_nbuf_headers = NBUF;
 int             max_nbuf_headers = NBUF;

-int             niobuf_headers = NBUF / 2;
-int            nbuf_hashelements = NBUF;
-int            nbuf_headers = NBUF;
+int             niobuf_headers = (NBUF / 2) + 2048;
+int             nbuf_hashelements = NBUF;
+int             nbuf_headers = NBUF;

 #else
 int             max_nbuf_headers = 0;
 int             niobuf_headers = 0;
 #else
 int             max_nbuf_headers = 0;
 int             niobuf_headers = 0;

-int            nbuf_hashelements = 0;
-int            nbuf_headers = 0;
+int             nbuf_hashelements = 0;
+int             nbuf_headers = 0;

 #endif
 
 #endif
 

-SYSCTL_INT (_kern, OID_AUTO, nbuf, CTLFLAG_RD, &nbuf_headers, 0, "");
-SYSCTL_INT (_kern, OID_AUTO, maxnbuf, CTLFLAG_RW, &max_nbuf_headers, 0, "");
+SYSCTL_INT(_kern, OID_AUTO, nbuf, CTLFLAG_RD | CTLFLAG_LOCKED, &nbuf_headers, 0, "");
+SYSCTL_INT(_kern, OID_AUTO, maxnbuf, CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_KERN, &max_nbuf_headers, 0, "");

 
 __private_extern__ int customnbuf = 0;
 
 __private_extern__ int customnbuf = 0;

-int             srv = 0;       /* Flag indicates a server boot when set */

 int             ncl = 0;
 
 int             ncl = 0;
 

+/* Indicates a server boot when set */
+TUNABLE(int, serverperfmode, "serverperfmode", 0);
+
+#if SOCKETS
+static unsigned int mbuf_poolsz;
+#endif
+

 vm_map_t        buffer_map;
 vm_map_t        bufferhdr_map;
 vm_map_t        buffer_map;
 vm_map_t        bufferhdr_map;

+static int vnodes_sized = 0;

 
 

-
-extern void     bsd_startupearly(void) __attribute__((section("__TEXT, initcode")));
+extern void     bsd_startupearly(void);

 
 void
 bsd_startupearly(void)
 
 void
 bsd_startupearly(void)


@@ -96,106 +111,138 @@ bsd_startupearly(void)
        kern_return_t   ret;
 
        /* clip the number of buf headers upto 16k */
        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))
+       if (max_nbuf_headers == 0) {
+               max_nbuf_headers = (int)atop_kernel(sane_size / 50); /* Get 2% of ram, but no more than we can map */
+       }
+       if ((customnbuf == 0) && ((unsigned int)max_nbuf_headers > 16384)) {

                max_nbuf_headers = 16384;
                max_nbuf_headers = 16384;

-       if (max_nbuf_headers < CONFIG_MIN_NBUF)
+       }
+       if (max_nbuf_headers < CONFIG_MIN_NBUF) {

                max_nbuf_headers = CONFIG_MIN_NBUF;
                max_nbuf_headers = CONFIG_MIN_NBUF;

+       }

 
        /* clip the number of hash elements  to 200000 */
 
        /* clip the number of hash elements  to 200000 */

-       if ( (customnbuf == 0 ) && nbuf_hashelements == 0) {
-               nbuf_hashelements = atop(sane_size / 50);
-               if (nbuf_hashelements > 200000)
+       if ((customnbuf == 0) && nbuf_hashelements == 0) {
+               nbuf_hashelements = (int)atop_kernel(sane_size / 50);
+               if ((unsigned int)nbuf_hashelements > 200000) {

                        nbuf_hashelements = 200000;
                        nbuf_hashelements = 200000;

-       } else
+               }
+       } else {

                nbuf_hashelements = max_nbuf_headers;
                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)
+       if (niobuf_headers == 0) {
+               if (max_nbuf_headers < 4096) {
+                       niobuf_headers = max_nbuf_headers;
+               } else {
+                       niobuf_headers = (max_nbuf_headers / 2) + 2048;
+               }
+       }
+       if (niobuf_headers < CONFIG_MIN_NIOBUF) {

                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,
 
        size = (max_nbuf_headers + niobuf_headers) * sizeof(struct buf);
        size = round_page(size);
 
        ret = kmem_suballoc(kernel_map,

-                           &firstaddr,
-                           size,
-                           FALSE,
-                           VM_FLAGS_ANYWHERE,
-                           &bufferhdr_map);
-
-       if (ret != KERN_SUCCESS)
+           &firstaddr,
+           size,
+           FALSE,
+           VM_FLAGS_ANYWHERE,
+           VM_MAP_KERNEL_FLAGS_NONE,
+           VM_KERN_MEMORY_FILE,
+           &bufferhdr_map);
+
+       if (ret != KERN_SUCCESS) {

                panic("Failed to create bufferhdr_map");
                panic("Failed to create bufferhdr_map");

+       }

 
        ret = kernel_memory_allocate(bufferhdr_map,
 
        ret = kernel_memory_allocate(bufferhdr_map,

-                                    &firstaddr,
-                                    size,
-                                    0,
-                                    KMA_HERE | KMA_KOBJECT);
+           &firstaddr,
+           size,
+           0,
+           KMA_HERE | KMA_KOBJECT,
+           VM_KERN_MEMORY_FILE);

 
 

-       if (ret != KERN_SUCCESS)
+       if (ret != KERN_SUCCESS) {

                panic("Failed to allocate bufferhdr_map");
                panic("Failed to allocate bufferhdr_map");

+       }

 
        buf_headers = (struct buf *) firstaddr;
        bzero(buf_headers, size);
 
 #if SOCKETS
        {
 
        buf_headers = (struct buf *) firstaddr;
        bzero(buf_headers, size);
 
 #if SOCKETS
        {

+               static const unsigned int       maxspace = 128 * 1024;

                int             scale;
 
                int             scale;
 

-               nmbclusters = bsd_mbuf_cluster_reserve() / MCLBYTES;
+               nmbclusters = bsd_mbuf_cluster_reserve(NULL) / MCLBYTES;

 
 

-#if INET || INET6
+#if INET

                if ((scale = nmbclusters / NMBCLUSTERS) > 1) {
                        tcp_sendspace *= scale;
                        tcp_recvspace *= scale;
 
                if ((scale = nmbclusters / NMBCLUSTERS) > 1) {
                        tcp_sendspace *= scale;
                        tcp_recvspace *= scale;
 

-                       if (tcp_sendspace > (64 * 1024))
-                               tcp_sendspace = 64 * 1024;
-                       if (tcp_recvspace > (64 * 1024))
-                               tcp_recvspace = 64 * 1024;
+                       if (tcp_sendspace > maxspace) {
+                               tcp_sendspace = maxspace;
+                       }
+                       if (tcp_recvspace > maxspace) {
+                               tcp_recvspace = maxspace;
+                       }

                }
                }

-#endif /* INET || INET6 */
+#endif /* INET */

        }
 #endif /* SOCKETS */
 
        }
 #endif /* SOCKETS */
 

-       /*
-        * 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;
+       if (vnodes_sized == 0) {
+               if (!PE_get_default("kern.maxvnodes", &desiredvnodes, sizeof(desiredvnodes))) {
+                       /*
+                        * 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  = (int)(sane_size / 65536) + 1024;
+#ifdef CONFIG_VNODES
+                       if (desiredvnodes > CONFIG_VNODES) {
+                               desiredvnodes = CONFIG_VNODES;
+                       }
+#endif
+               }
+               vnodes_sized = 1;
+       }

 }
 
 void
 bsd_bufferinit(void)
 {
 }
 
 void
 bsd_bufferinit(void)
 {

+#if SOCKETS

        kern_return_t   ret;
        kern_return_t   ret;

-
-       cons.t_dev = makedev(12, 0);
+#endif
+       /*
+        * 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,
 
        bsd_startupearly();
 
 #if SOCKETS
        ret = kmem_suballoc(kernel_map,

-                           (vm_offset_t *) & mbutl,
-                           (vm_size_t) (nmbclusters * MCLBYTES),
-                           FALSE,
-                           VM_FLAGS_ANYWHERE,
-                           &mb_map);
-
-       if (ret != KERN_SUCCESS)
+           (vm_offset_t *) &mbutl,
+           (vm_size_t) (nmbclusters * MCLBYTES),
+           FALSE,
+           VM_FLAGS_ANYWHERE,
+           VM_MAP_KERNEL_FLAGS_NONE,
+           VM_KERN_MEMORY_MBUF,
+           &mb_map);
+
+       if (ret != KERN_SUCCESS) {

                panic("Failed to allocate mb_map\n");
                panic("Failed to allocate mb_map\n");

+       }

 #endif /* SOCKETS */
 
        /*
 #endif /* SOCKETS */
 
        /*


@@ -204,7 +251,15 @@ bsd_bufferinit(void)
        bufinit();
 }
 
        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)

 
 

+#if SOCKETS

 /*
  * this has been broken out into a separate routine that
  * can be called from the x86 early vm initialization to
 /*
  * this has been broken out into a separate routine that
  * can be called from the x86 early vm initialization to


@@ -212,19 +267,121 @@ bsd_bufferinit(void)
  * DMA hardware that can't fully address all of the physical
  * memory that is present.
  */
  * DMA hardware that can't fully address all of the physical
  * memory that is present.
  */

-int
-bsd_mbuf_cluster_reserve(void)
+unsigned int
+bsd_mbuf_cluster_reserve(boolean_t *overridden)

 {
 {

-        if (sane_size > (64 * 1024 * 1024) || ncl) {
+       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));

 
 

-               if ((nmbclusters = ncl) == 0) {
-                       if ((nmbclusters = ((sane_size / 16)/MCLBYTES)) > 32768)
-                               nmbclusters = 32768;
+       /*
+        * 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;

                }
                }

-               /* Make sure it's not odd in case ncl is manually set */
-               if (nmbclusters & 0x1)
-                       --nmbclusters;
+
+               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 (nmbclusters * MCLBYTES);
+       return mbuf_poolsz;
+}
+#endif
+
+#if defined(__LP64__)
+extern int tcp_tcbhashsize;
+extern int max_cached_sock_count;
+#endif
+
+
+void
+bsd_scale_setup(int scale)
+{
+#if defined(__LP64__)
+       if ((scale > 0) && (serverperfmode == 0)) {
+               maxproc *= scale;
+               maxprocperuid = (maxproc * 2) / 3;
+               if (scale > 2) {
+                       maxfiles *= scale;
+                       maxfilesperproc = maxfiles / 2;
+               }
+       }
+       /* Apply server scaling rules */
+       if ((scale > 0) && (serverperfmode != 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;
+               tcp_tfo_backlog = 100 * scale;
+               if (scale > 4) {
+                       /* clip somaxconn at 32G level */
+                       somaxconn = 2048;
+                       /*
+                        * For scale > 4 (> 32G), clip
+                        * tcp_tcbhashsize to 32K
+                        */
+                       tcp_tcbhashsize = 32 * 1024;
+
+                       if (scale > 7) {
+                               /* clip at 64G level */
+                               max_cached_sock_count = 165000;
+                       } else {
+                               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);
+               }
+       }
+
+       if (maxproc > hard_maxproc) {
+               hard_maxproc = maxproc;
+       }
+#endif
+       bsd_exec_setup(scale);

 }
 }