#include <vppinfra/error.h>
#include <vppinfra/format.h>
#include <vppinfra/bitmap.h>
+#include <vlib/linux/sysfs.h>
#include <vlib/unix/unix.h>
#include <vnet/ethernet/ethernet.h>
#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
+#include <vlib/linux/syscall.h>
#include <vnet/plugin/plugin.h>
#include <vnet/ethernet/ethernet.h>
#include <vpp/app/version.h>
int memif_delete_if (vlib_main_t * vm, memif_if_t * mif);
clib_error_t *memif_plugin_api_hookup (vlib_main_t * vm);
-#ifndef __NR_memfd_create
-#if defined __x86_64__
-#define __NR_memfd_create 319
-#elif defined __arm__
-#define __NR_memfd_create 385
-#elif defined __aarch64__
-#define __NR_memfd_create 279
-#else
-#error "__NR_memfd_create unknown for this architecture"
-#endif
-#endif
-
-static inline int
-memfd_create (const char *name, unsigned int flags)
-{
- return syscall (__NR_memfd_create, name, flags);
-}
-
static_always_inline void *
memif_get_buffer (memif_if_t * mif, memif_ring_t * ring, u16 slot)
{
return mif->regions[region].shm + ring->desc[slot].offset;
}
-#ifndef F_LINUX_SPECIFIC_BASE
-#define F_LINUX_SPECIFIC_BASE 1024
-#endif
-#define MFD_ALLOW_SEALING 0x0002U
-#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
-#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
-
-#define F_SEAL_SEAL 0x0001 /* prevent further seals from being set */
-#define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
-#define F_SEAL_GROW 0x0004 /* prevent file from growing */
-#define F_SEAL_WRITE 0x0008 /* prevent writes */
-
/* memif.c */
clib_error_t *memif_init_regions_and_queues (memif_if_t * mif);
clib_error_t *memif_connect (memif_if_t * mif);
vlib/format.c \
vlib/i2c.c \
vlib/init.c \
+ vlib/linux/pci.c \
+ vlib/linux/physmem.c \
+ vlib/linux/sysfs.c \
vlib/main.c \
vlib/mc.c \
vlib/node.c \
vlib/node_cli.c \
vlib/node_format.c \
vlib/pci/pci.c \
- vlib/pci/linux_pci.c \
vlib/threads.c \
vlib/threads_cli.c \
vlib/trace.c
vlib/global_funcs.h \
vlib/i2c.h \
vlib/init.h \
+ vlib/linux/sysfs.h \
+ vlib/linux/syscall.h \
vlib/main.h \
vlib/mc.h \
vlib/node_funcs.h \
vlib/unix/mc_socket.c \
vlib/unix/plugin.c \
vlib/unix/plugin.h \
- vlib/unix/physmem.c \
vlib/unix/util.c
nobase_include_HEADERS += \
#include <vlib/vlib.h>
#include <vlib/pci/pci.h>
#include <vlib/unix/unix.h>
+#include <vlib/linux/sysfs.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <vlib/vlib.h>
#include <vlib/physmem.h>
#include <vlib/unix/unix.h>
-
-#ifndef __NR_memfd_create
-#if defined __x86_64__
-#define __NR_memfd_create 319
-#elif defined __arm__
-#define __NR_memfd_create 385
-#elif defined __aarch64__
-#define __NR_memfd_create 279
-#else
-#error "__NR_memfd_create unknown for this architecture"
-#endif
-#endif
-
-static inline int
-memfd_create (const char *name, unsigned int flags)
-{
- return syscall (__NR_memfd_create, name, flags);
-}
-
-#ifndef F_LINUX_SPECIFIC_BASE
-#define F_LINUX_SPECIFIC_BASE 1024
-#endif
-#define MFD_ALLOW_SEALING 0x0002U
-#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
-#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
-
-#define F_SEAL_SEAL 0x0001 /* prevent further seals from being set */
-#define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
-#define F_SEAL_GROW 0x0004 /* prevent file from growing */
-#define F_SEAL_WRITE 0x0008 /* prevent writes */
+#include <vlib/linux/syscall.h>
+#include <vlib/linux/sysfs.h>
static void *
unix_physmem_alloc_aligned (vlib_main_t * vm, vlib_physmem_region_index_t idx,
--- /dev/null
+/*
+ * 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.
+ */
+
+#ifndef included_linux_syscall_h
+#define included_linux_syscall_h
+
+#ifndef __NR_memfd_create
+#if defined __x86_64__
+#define __NR_memfd_create 319
+#elif defined __arm__
+#define __NR_memfd_create 385
+#elif defined __aarch64__
+#define __NR_memfd_create 279
+#else
+#error "__NR_memfd_create unknown for this architecture"
+#endif
+#endif
+
+static inline int
+memfd_create (const char *name, unsigned int flags)
+{
+ return syscall (__NR_memfd_create, name, flags);
+}
+
+#ifndef F_LINUX_SPECIFIC_BASE
+#define F_LINUX_SPECIFIC_BASE 1024
+#endif
+#define MFD_ALLOW_SEALING 0x0002U
+#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
+#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
+
+#define F_SEAL_SEAL 0x0001 /* prevent further seals from being set */
+#define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
+#define F_SEAL_GROW 0x0004 /* prevent file from growing */
+#define F_SEAL_WRITE 0x0008 /* prevent writes */
+
+
+#endif /* included_linux_syscall_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
--- /dev/null
+/*
+ * 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:
+ */
--- /dev/null
+/*
+ * 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.
+ */
+
+#ifndef included_linux_sysfs_h
+#define included_linux_sysfs_h
+
+clib_error_t *vlib_sysfs_write (char *file_name, char *fmt, ...);
+
+clib_error_t *vlib_sysfs_read (char *file_name, char *fmt, ...);
+
+u8 *vlib_sysfs_link_to_name (char *link);
+
+clib_error_t *vlib_sysfs_set_nr_hugepages (unsigned int numa_node,
+ int page_size, int nr);
+clib_error_t *vlib_sysfs_get_nr_hugepages (unsigned int numa_node,
+ int page_size, int *v);
+clib_error_t *vlib_sysfs_get_free_hugepages (unsigned int numa_node,
+ int page_size, int *v);
+clib_error_t *vlib_sysfs_get_surplus_hugepages (unsigned int numa_node,
+ int page_size, int *v);
+clib_error_t *vlib_sysfs_prealloc_hugepages (unsigned int numa_node,
+ int page_size, int nr);
+
+#endif /* included_linux_sysfs_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
#include <vlib/vlib.h>
#include <vlib/threads.h>
+#include <vlib/linux/sysfs.h>
#include <vlib/unix/unix.h>
static u8 *
/* utils */
-clib_error_t *vlib_sysfs_write (char *file_name, char *fmt, ...);
-
-clib_error_t *vlib_sysfs_read (char *file_name, char *fmt, ...);
-
-u8 *vlib_sysfs_link_to_name (char *link);
-
-clib_error_t *vlib_sysfs_set_nr_hugepages (unsigned int numa_node,
- int page_size, int nr);
-clib_error_t *vlib_sysfs_get_nr_hugepages (unsigned int numa_node,
- int page_size, int *v);
-clib_error_t *vlib_sysfs_get_free_hugepages (unsigned int numa_node,
- int page_size, int *v);
-clib_error_t *vlib_sysfs_get_surplus_hugepages (unsigned int numa_node,
- int page_size, int *v);
-clib_error_t *vlib_sysfs_prealloc_hugepages (unsigned int numa_node,
- int page_size, int nr);
-
clib_error_t *foreach_directory_file (char *dir_name,
clib_error_t * (*f) (void *arg,
u8 * path_name,
return error;
}
-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);
-}
-
clib_error_t *
vlib_unix_recursive_mkdir (char *path)
{
#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
+#include <vlib/linux/sysfs.h>
#include <vnet/ip/ip.h>
#include <vnet/ethernet/ethernet.h>
Code Review / vpp.git / commitdiff