vppinfra: add clib_mem_vm_ext_alloc function

Change-Id: Iff33694fc42cc3bcc73cf1372339053a6365039c
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 0 insertions, 250 deletions

diff --git a/src/vlib/linux/sysfs.c b/src/vlib/linux/sysfs.c
deleted file mode 100644
index f92f9ef564e..00000000000
--- a/src/vlib/linux/sysfs.c
+++ /dev/null
@@ -1,250 +0,0 @@
-/*
- * Copyright (c) 2017 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <vlib/vlib.h>
-#include <vlib/unix/unix.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <dirent.h>
-
-clib_error_t *
-vlib_sysfs_write (char *file_name, char *fmt, ...)
-{
-  u8 *s;
-  int fd;
-  clib_error_t *error = 0;
-
-  fd = open (file_name, O_WRONLY);
-  if (fd < 0)
-    return clib_error_return_unix (0, "open `%s'", file_name);
-
-  va_list va;
-  va_start (va, fmt);
-  s = va_format (0, fmt, &va);
-  va_end (va);
-
-  if (write (fd, s, vec_len (s)) < 0)
-    error = clib_error_return_unix (0, "write `%s'", file_name);
-
-  vec_free (s);
-  close (fd);
-  return error;
-}
-
-clib_error_t *
-vlib_sysfs_read (char *file_name, char *fmt, ...)
-{
-  unformat_input_t input;
-  u8 *s = 0;
-  int fd;
-  ssize_t sz;
-  uword result;
-
-  fd = open (file_name, O_RDONLY);
-  if (fd < 0)
-    return clib_error_return_unix (0, "open `%s'", file_name);
-
-  vec_validate (s, 4095);
-
-  sz = read (fd, s, vec_len (s));
-  if (sz < 0)
-    {
-      close (fd);
-      vec_free (s);
-      return clib_error_return_unix (0, "read `%s'", file_name);
-    }
-
-  _vec_len (s) = sz;
-  unformat_init_vector (&input, s);
-
-  va_list va;
-  va_start (va, fmt);
-  result = va_unformat (&input, fmt, &va);
-  va_end (va);
-
-  vec_free (s);
-  close (fd);
-
-  if (result == 0)
-    return clib_error_return (0, "unformat error");
-
-  return 0;
-}
-
-u8 *
-vlib_sysfs_link_to_name (char *link)
-{
-  char *p, buffer[64];
-  unformat_input_t in;
-  u8 *s = 0;
-  int r;
-
-  r = readlink (link, buffer, sizeof (buffer) - 1);
-
-  if (r < 0)
-    return 0;
-
-  buffer[r] = 0;
-  p = strrchr (buffer, '/');
-
-  if (!p)
-    return 0;
-
-  unformat_init_string (&in, p + 1, strlen (p + 1));
-  if (unformat (&in, "%s", &s) != 1)
-    clib_unix_warning ("no string?");
-  unformat_free (&in);
-
-  return s;
-}
-
-clib_error_t *
-vlib_sysfs_set_nr_hugepages (unsigned int numa_node, int page_size, int nr)
-{
-  clib_error_t *error = 0;
-  struct stat sb;
-  u8 *p = 0;
-
-  p = format (p, "/sys/devices/system/node/node%u%c", numa_node, 0);
-
-  if (stat ((char *) p, &sb) == 0)
-    {
-      if (S_ISDIR (sb.st_mode) == 0)
-	{
-	  error = clib_error_return (0, "'%s' is not directory", p);
-	  goto done;
-	}
-    }
-  else if (numa_node == 0)
-    {
-      vec_reset_length (p);
-      p = format (p, "/sys/kernel/mm%c", 0);
-      if (stat ((char *) p, &sb) < 0 || S_ISDIR (sb.st_mode) == 0)
-	{
-	  error = clib_error_return (0, "'%s' does not exist or it is not "
-				     "directory", p);
-	  goto done;
-	}
-    }
-  else
-    {
-      error = clib_error_return (0, "'%s' does not exist", p);
-      goto done;
-    }
-
-  _vec_len (p) -= 1;
-  p = format (p, "/hugepages/hugepages-%ukB/nr_hugepages%c", page_size, 0);
-  vlib_sysfs_write ((char *) p, "%d", nr);
-
-done:
-  vec_free (p);
-  return error;
-}
-
-
-static clib_error_t *
-vlib_sysfs_get_xxx_hugepages (char *type, unsigned int numa_node,
-			      int page_size, int *val)
-{
-  clib_error_t *error = 0;
-  struct stat sb;
-  u8 *p = 0;
-
-  p = format (p, "/sys/devices/system/node/node%u%c", numa_node, 0);
-
-  if (stat ((char *) p, &sb) == 0)
-    {
-      if (S_ISDIR (sb.st_mode) == 0)
-	{
-	  error = clib_error_return (0, "'%s' is not directory", p);
-	  goto done;
-	}
-    }
-  else if (numa_node == 0)
-    {
-      vec_reset_length (p);
-      p = format (p, "/sys/kernel/mm%c", 0);
-      if (stat ((char *) p, &sb) < 0 || S_ISDIR (sb.st_mode) == 0)
-	{
-	  error = clib_error_return (0, "'%s' does not exist or it is not "
-				     "directory", p);
-	  goto done;
-	}
-    }
-  else
-    {
-      error = clib_error_return (0, "'%s' does not exist", p);
-      goto done;
-    }
-
-  _vec_len (p) -= 1;
-  p = format (p, "/hugepages/hugepages-%ukB/%s_hugepages%c", page_size,
-	      type, 0);
-  error = vlib_sysfs_read ((char *) p, "%d", val);
-
-done:
-  vec_free (p);
-  return error;
-}
-
-clib_error_t *
-vlib_sysfs_get_free_hugepages (unsigned int numa_node, int page_size, int *v)
-{
-  return vlib_sysfs_get_xxx_hugepages ("free", numa_node, page_size, v);
-}
-
-clib_error_t *
-vlib_sysfs_get_nr_hugepages (unsigned int numa_node, int page_size, int *v)
-{
-  return vlib_sysfs_get_xxx_hugepages ("nr", numa_node, page_size, v);
-}
-
-clib_error_t *
-vlib_sysfs_get_surplus_hugepages (unsigned int numa_node, int page_size,
-				  int *v)
-{
-  return vlib_sysfs_get_xxx_hugepages ("surplus", numa_node, page_size, v);
-}
-
-clib_error_t *
-vlib_sysfs_prealloc_hugepages (unsigned int numa_node, int page_size, int nr)
-{
-  clib_error_t *error = 0;
-  int n, needed;
-  error = vlib_sysfs_get_free_hugepages (numa_node, page_size, &n);
-  if (error)
-    return error;
-  needed = nr - n;
-  if (needed <= 0)
-    return 0;
-
-  error = vlib_sysfs_get_nr_hugepages (numa_node, page_size, &n);
-  if (error)
-    return error;
-  clib_warning ("pre-allocating %u additional %uK hugepages on numa node %u",
-		needed, page_size, numa_node);
-  return vlib_sysfs_set_nr_hugepages (numa_node, page_size, n + needed);
-}
-
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */