#include <vppinfra/error.h>
#include <vppinfra/format.h>
#include <vppinfra/bitmap.h>
-#include <vlib/linux/sysfs.h>
+#include <vppinfra/linux/sysfs.h>
#include <vlib/unix/unix.h>
#include <vnet/ethernet/ethernet.h>
mem = mem_by_socket[c];
page_size = 1024;
- e = vlib_sysfs_get_free_hugepages(c, page_size * 1024, &pages_avail);
+ e = clib_sysfs_get_free_hugepages(c, page_size * 1024, &pages_avail);
if (e != 0 || pages_avail < 0 || page_size * pages_avail < mem)
use_1g = 0;
clib_error_free (e);
page_size = 2;
- e = vlib_sysfs_get_free_hugepages(c, page_size * 1024, &pages_avail);
+ e = clib_sysfs_get_free_hugepages(c, page_size * 1024, &pages_avail);
if (e != 0 || pages_avail < 0 || page_size * pages_avail < mem)
use_2m = 0;
#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
-#include <vlib/linux/syscall.h>
+#include <vppinfra/linux/syscall.h>
#include <vnet/plugin/plugin.h>
#include <vnet/ethernet/ethernet.h>
#include <vpp/app/version.h>
int i, j;
u64 buffer_offset;
memif_region_t *r;
+ clib_mem_vm_alloc_t alloc = { 0 };
+ clib_error_t *err;
vec_validate_aligned (mif->regions, 0, CLIB_CACHE_LINE_BYTES);
r = vec_elt_at_index (mif->regions, 0);
mif->run.buffer_size * (1 << mif->run.log2_ring_size) *
(mif->run.num_s2m_rings + mif->run.num_m2s_rings);
- if ((r->fd = memfd_create ("memif region 0", MFD_ALLOW_SEALING)) == -1)
- return clib_error_return_unix (0, "memfd_create");
-
- if ((fcntl (r->fd, F_ADD_SEALS, F_SEAL_SHRINK)) == -1)
- return clib_error_return_unix (0, "fcntl (F_ADD_SEALS, F_SEAL_SHRINK)");
+ alloc.name = "memif region";
+ alloc.size = r->region_size;
+ alloc.flags = CLIB_MEM_VM_F_SHARED;
- if ((ftruncate (r->fd, r->region_size)) == -1)
- return clib_error_return_unix (0, "ftruncate");
+ err = clib_mem_vm_ext_alloc (&alloc);
+ if (err)
+ return err;
- if ((r->shm = mmap (NULL, r->region_size, PROT_READ | PROT_WRITE,
- MAP_SHARED, r->fd, 0)) == MAP_FAILED)
- return clib_error_return_unix (0, "mmap");
+ r->fd = alloc.fd;
for (i = 0; i < mif->run.num_s2m_rings; i++)
{
lib_LTLIBRARIES += libvlib.la
-libvlib_la_LIBADD = libvppinfra.la -ldl -lpthread -lnuma
+libvlib_la_LIBADD = libvppinfra.la -ldl -lpthread
libvlib_la_DEPENDENCIES = libvppinfra.la
BUILT_SOURCES += vlib/config.h
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/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 \
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
+#include <vppinfra/linux/sysfs.h>
+
#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>
format_vlib_pci_addr, &d->bus_address);
s = format (s, "%v/driver%c", dev_dir_name, 0);
- driver_name = vlib_sysfs_link_to_name ((char *) s);
+ driver_name = clib_sysfs_link_to_name ((char *) s);
vec_reset_length (s);
if (driver_name &&
vec_reset_length (s);
s = format (s, "%v/driver/unbind%c", dev_dir_name, 0);
- vlib_sysfs_write ((char *) s, "%U", format_vlib_pci_addr, &d->bus_address);
+ clib_sysfs_write ((char *) s, "%U", format_vlib_pci_addr, &d->bus_address);
vec_reset_length (s);
s = format (s, "%v/driver_override%c", dev_dir_name, 0);
if (access ((char *) s, F_OK) == 0)
{
- vlib_sysfs_write ((char *) s, "%s", uio_driver_name);
+ clib_sysfs_write ((char *) s, "%s", uio_driver_name);
clear_driver_override = 1;
}
else
{
vec_reset_length (s);
s = format (s, "/sys/bus/pci/drivers/%s/new_id%c", uio_driver_name, 0);
- vlib_sysfs_write ((char *) s, "0x%04x 0x%04x", d->vendor_id,
+ clib_sysfs_write ((char *) s, "0x%04x 0x%04x", d->vendor_id,
d->device_id);
}
vec_reset_length (s);
s = format (s, "/sys/bus/pci/drivers/%s/bind%c", uio_driver_name, 0);
- vlib_sysfs_write ((char *) s, "%U", format_vlib_pci_addr, &d->bus_address);
+ clib_sysfs_write ((char *) s, "%U", format_vlib_pci_addr, &d->bus_address);
vec_reset_length (s);
if (clear_driver_override)
{
s = format (s, "%v/driver_override%c", dev_dir_name, 0);
- vlib_sysfs_write ((char *) s, "%c", 0);
+ clib_sysfs_write ((char *) s, "%c", 0);
vec_reset_length (s);
}
dev->numa_node = -1;
vec_reset_length (f);
f = format (f, "%v/numa_node%c", dev_dir_name, 0);
- vlib_sysfs_read ((char *) f, "%u", &dev->numa_node);
+ clib_sysfs_read ((char *) f, "%u", &dev->numa_node);
vec_reset_length (f);
f = format (f, "%v/class%c", dev_dir_name, 0);
- vlib_sysfs_read ((char *) f, "0x%x", &tmp);
+ clib_sysfs_read ((char *) f, "0x%x", &tmp);
dev->device_class = tmp >> 8;
vec_reset_length (f);
f = format (f, "%v/vendor%c", dev_dir_name, 0);
- vlib_sysfs_read ((char *) f, "0x%x", &tmp);
+ clib_sysfs_read ((char *) f, "0x%x", &tmp);
dev->vendor_id = tmp;
vec_reset_length (f);
f = format (f, "%v/device%c", dev_dir_name, 0);
- vlib_sysfs_read ((char *) f, "0x%x", &tmp);
+ clib_sysfs_read ((char *) f, "0x%x", &tmp);
dev->device_id = tmp;
error = init_device (vm, dev, &pdev);
vec_reset_length (f);
f = format (f, "%v/driver%c", dev_dir_name, 0);
- dev->driver_name = vlib_sysfs_link_to_name ((char *) f);
+ dev->driver_name = clib_sysfs_link_to_name ((char *) f);
done:
vec_free (f);
#include <sys/mman.h>
#include <sys/fcntl.h>
#include <sys/stat.h>
-#include <numa.h>
-#include <numaif.h>
+#include <vppinfra/linux/syscall.h>
+#include <vppinfra/linux/sysfs.h>
#include <vlib/vlib.h>
#include <vlib/physmem.h>
#include <vlib/unix/unix.h>
-#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,
mheap_put (pr->heap, x - pr->heap);
}
-static u64
-get_page_paddr (int fd, uword addr)
-{
- int pagesize = sysconf (_SC_PAGESIZE);
- u64 seek, pagemap = 0;
-
- seek = ((u64) addr / pagesize) * sizeof (u64);
- if (lseek (fd, seek, SEEK_SET) != seek)
- {
- clib_unix_warning ("lseek to 0x%llx", seek);
- return 0;
- }
- if (read (fd, &pagemap, sizeof (pagemap)) != (sizeof (pagemap)))
- {
- clib_unix_warning ("read ptbits");
- return 0;
- }
- if ((pagemap & (1ULL << 63)) == 0)
- return 0;
-
- pagemap &= pow2_mask (55);
-
- return pagemap * pagesize;
-}
-
static clib_error_t *
unix_physmem_region_alloc (vlib_main_t * vm, char *name, u32 size,
u8 numa_node, u32 flags,
vlib_physmem_main_t *vpm = &vm->physmem_main;
vlib_physmem_region_t *pr;
clib_error_t *error = 0;
- int pagemap_fd = -1;
- u8 *mount_dir = 0;
- u8 *filename = 0;
- struct stat st;
- int old_mpol;
- int mmap_flags;
- struct bitmask *old_mask = numa_allocate_nodemask ();
+ clib_mem_vm_alloc_t alloc = { 0 };
+
if (geteuid () != 0 && (flags & VLIB_PHYSMEM_F_FAKE) == 0)
return clib_error_return (0, "not allowed");
goto error;
}
- pr->index = pr - vpm->regions;
- pr->fd = -1;
- pr->flags = flags;
-
- if (get_mempolicy (&old_mpol, old_mask->maskp, old_mask->size + 1, NULL, 0)
- == -1)
- {
- if ((flags & VLIB_PHYSMEM_F_FAKE) == 0)
- {
- error = clib_error_return_unix (0, "get_mempolicy");
- goto error;
- }
- else
- old_mpol = -1;
- }
+ alloc.name = name;
+ alloc.size = size;
+ alloc.numa_node = numa_node;
+ alloc.flags = CLIB_MEM_VM_F_SHARED;
if ((flags & VLIB_PHYSMEM_F_FAKE) == 0)
{
- if ((pagemap_fd = open ((char *) "/proc/self/pagemap", O_RDONLY)) == -1)
- {
- error = clib_error_return_unix (0, "open '/proc/self/pagemap'");
- goto error;
- }
-
- mount_dir = format (0, "%s/physmem_region%d%c",
- vlib_unix_get_runtime_dir (), pr->index, 0);
- filename = format (0, "%s/mem%c", mount_dir, 0);
-
- unlink ((char *) mount_dir);
-
- error = vlib_unix_recursive_mkdir ((char *) mount_dir);
- if (error)
- goto error;
-
- if (mount ("none", (char *) mount_dir, "hugetlbfs", 0, NULL))
- {
- error = clib_error_return_unix (0, "mount hugetlb directory '%s'",
- mount_dir);
- goto error;
- }
-
- if ((pr->fd = open ((char *) filename, O_CREAT | O_RDWR, 0755)) == -1)
- {
- error = clib_error_return_unix (0, "open");
- goto error;
- }
-
- mmap_flags = MAP_SHARED | MAP_HUGETLB | MAP_LOCKED;
+ alloc.flags |= CLIB_MEM_VM_F_HUGETLB;
+ alloc.flags |= CLIB_MEM_VM_F_HUGETLB_PREALLOC;
+ alloc.flags |= CLIB_MEM_VM_F_NUMA_FORCE;
}
else
{
- if ((pr->fd = memfd_create (name, MFD_ALLOW_SEALING)) == -1)
- return clib_error_return_unix (0, "memfd_create");
-
- if ((fcntl (pr->fd, F_ADD_SEALS, F_SEAL_SHRINK)) == -1)
- {
- error =
- clib_error_return_unix (0, "fcntl (F_ADD_SEALS, F_SEAL_SHRINK)");
- goto error;
- }
- mmap_flags = MAP_SHARED;
- }
-
- if (fstat (pr->fd, &st))
- {
- error = clib_error_return_unix (0, "fstat");
- goto error;
- }
-
- pr->log2_page_size = min_log2 (st.st_blksize);
- pr->n_pages = ((size - 1) >> pr->log2_page_size) + 1;
- size = pr->n_pages * (1 << pr->log2_page_size);
-
- if ((ftruncate (pr->fd, size)) == -1)
- {
- error = clib_error_return_unix (0, "ftruncate length: %d", size);
- goto error;
- }
-
- if ((flags & VLIB_PHYSMEM_F_FAKE) == 0)
- {
- error = vlib_sysfs_prealloc_hugepages (numa_node,
- 1 << (pr->log2_page_size - 10),
- pr->n_pages);
- if (error)
- goto error;
- }
-
- if (old_mpol != -1)
- numa_set_preferred (numa_node);
-
- pr->mem = mmap (0, size, (PROT_READ | PROT_WRITE), mmap_flags, pr->fd, 0);
-
- if (pr->mem == MAP_FAILED)
- {
- pr->mem = 0;
- error = clib_error_return_unix (0, "mmap");
- goto error;
+ alloc.flags |= CLIB_MEM_VM_F_NUMA_PREFER;
}
- if (old_mpol != -1 &&
- set_mempolicy (old_mpol, old_mask->maskp, old_mask->size + 1) == -1)
- {
- error = clib_error_return_unix (0, "set_mempolicy");
- goto error;
- }
+ error = clib_mem_vm_ext_alloc (&alloc);
+ if (error)
+ goto error;
+ pr->index = pr - vpm->regions;
+ pr->flags = flags;
+ pr->fd = alloc.fd;
+ pr->mem = alloc.addr;
+ pr->log2_page_size = alloc.log2_page_size;
+ pr->n_pages = alloc.n_pages;
pr->size = pr->n_pages << pr->log2_page_size;
pr->page_mask = (1 << pr->log2_page_size) - 1;
pr->numa_node = numa_node;
move_pages (0, 1, &ptr, 0, &node, 0);
if (numa_node != node)
{
- clib_warning
- ("physmem page for region \'%s\' allocated on the wrong"
- " numa node (requested %u actual %u)", pr->name,
- pr->numa_node, node, i);
+ clib_warning ("physmem page for region \'%s\' allocated on the"
+ " wrong numa node (requested %u actual %u)",
+ pr->name, pr->numa_node, node, i);
break;
}
}
+ pr->page_table = clib_mem_vm_get_paddr (pr->mem, pr->log2_page_size,
+ pr->n_pages);
}
if (flags & VLIB_PHYSMEM_F_INIT_MHEAP)
*idx = pr->index;
- if ((flags & VLIB_PHYSMEM_F_FAKE) == 0)
- {
- int i;
- for (i = 0; i < pr->n_pages; i++)
- {
- uword vaddr =
- pointer_to_uword (pr->mem) + (((u64) i) << pr->log2_page_size);
- u64 page_paddr = get_page_paddr (pagemap_fd, vaddr);
- vec_add1 (pr->page_table, page_paddr);
- }
- }
-
goto done;
error:
- if (pr->fd > -1)
- close (pr->fd);
-
- if (pr->mem)
- munmap (pr->mem, size);
-
memset (pr, 0, sizeof (*pr));
pool_put (vpm->regions, pr);
done:
- if (mount_dir)
- {
- umount2 ((char *) mount_dir, MNT_DETACH);
- rmdir ((char *) mount_dir);
- vec_free (mount_dir);
- }
- numa_free_cpumask (old_mask);
- vec_free (filename);
- if (pagemap_fd > -1)
- close (pagemap_fd);
return error;
}
}
static uword *
-vlib_sysfs_list_to_bitmap (char *filename)
+clib_sysfs_list_to_bitmap (char *filename)
{
FILE *fp;
uword *r = 0;
/* get bitmaps of active cpu cores and sockets */
tm->cpu_core_bitmap =
- vlib_sysfs_list_to_bitmap ("/sys/devices/system/cpu/online");
+ clib_sysfs_list_to_bitmap ("/sys/devices/system/cpu/online");
tm->cpu_socket_bitmap =
- vlib_sysfs_list_to_bitmap ("/sys/devices/system/node/online");
+ clib_sysfs_list_to_bitmap ("/sys/devices/system/node/online");
avail_cpu = clib_bitmap_dup (tm->cpu_core_bitmap);
#define _GNU_SOURCE
#include <vppinfra/format.h>
+#include <vppinfra/linux/sysfs.h>
#include <vlib/vlib.h>
#include <vlib/threads.h>
-#include <vlib/linux/sysfs.h>
#include <vlib/unix/unix.h>
static u8 *
u8 *p = 0;
p = format (p, "%s%u/topology/core_id%c", sys_cpu_path, lcore, 0);
- vlib_sysfs_read ((char *) p, "%d", &core_id);
+ clib_sysfs_read ((char *) p, "%d", &core_id);
vec_reset_length (p);
p =
format (p,
"%s%u/topology/physical_package_id%c",
sys_cpu_path, lcore, 0);
- vlib_sysfs_read ((char *) p, "%d", &socket_id);
+ clib_sysfs_read ((char *) p, "%d", &socket_id);
vec_free (p);
line = format (line, "%-7u%-7u%-7u%", lcore, core_id, socket_id);
#include <sys/types.h>
#include <fcntl.h>
+#include <vppinfra/linux/sysfs.h>
#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
-#include <vlib/linux/sysfs.h>
#include <vnet/ip/ip.h>
#include <vnet/ethernet/ethernet.h>
{
s = format (0, "/sys/class/net/%s/mtu%c", apif->host_if_name, 0);
- error = vlib_sysfs_write ((char *) s, "%d", hi->max_packet_bytes);
+ error = clib_sysfs_write ((char *) s, "%d", hi->max_packet_bytes);
vec_free (s);
if (error)
vppinfra/graph.h \
vppinfra/hash.h \
vppinfra/heap.h \
+ vppinfra/linux/sysfs.h \
+ vppinfra/linux/syscall.h \
vppinfra/lock.h \
vppinfra/longjmp.h \
vppinfra/macros.h \
vppinfra/vector_neon.h \
vppinfra/vector_sse2.h \
vppinfra/valgrind.h \
- vppinfra/vm_unix.h \
vppinfra/xxhash.h \
vppinfra/xy.h \
vppinfra/zvec.h
libvppinfra_la_SOURCES = \
$(CLIB_CORE) \
vppinfra/elf_clib.c \
+ vppinfra/linux/mem.c \
+ vppinfra/linux/sysfs.c \
vppinfra/socket.c \
vppinfra/timer.c \
vppinfra/unix-formats.c \
--- /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.
+ */
+
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <sys/mount.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <linux/mempolicy.h>
+#include <linux/memfd.h>
+
+#include <vppinfra/clib.h>
+#include <vppinfra/mem.h>
+#include <vppinfra/format.h>
+#include <vppinfra/clib_error.h>
+#include <vppinfra/linux/syscall.h>
+#include <vppinfra/linux/sysfs.h>
+
+#ifndef F_LINUX_SPECIFIC_BASE
+#define F_LINUX_SPECIFIC_BASE 1024
+#endif
+
+#ifndef F_ADD_SEALS
+#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
+
+int
+clib_mem_vm_get_log2_page_size (int fd)
+{
+ struct stat st = { 0 };
+ if (fstat (fd, &st))
+ return 0;
+ return min_log2 (st.st_blksize);
+}
+
+clib_error_t *
+clib_mem_vm_ext_alloc (clib_mem_vm_alloc_t * a)
+{
+ int fd = -1;
+ clib_error_t *err = 0;
+ void *addr = 0;
+ u8 *filename = 0;
+ int mmap_flags = MAP_SHARED;
+ int log2_page_size;
+ int n_pages;
+ int old_mpol = -1;
+ u64 old_mask[16] = { 0 };
+
+ /* save old numa mem policy if needed */
+ if (a->flags & (CLIB_MEM_VM_F_NUMA_PREFER | CLIB_MEM_VM_F_NUMA_FORCE))
+ {
+ int rv;
+ rv =
+ get_mempolicy (&old_mpol, old_mask, sizeof (old_mask) * 8 + 1, 0, 0);
+
+ if (rv == -1)
+ {
+ if ((a->flags & CLIB_MEM_VM_F_NUMA_FORCE) != 0)
+ {
+ err = clib_error_return_unix (0, "get_mempolicy");
+ goto error;
+ }
+ else
+ old_mpol = -1;
+ }
+ }
+
+ /* if we are creating shared segment, we need file descriptor */
+ if (a->flags & CLIB_MEM_VM_F_SHARED)
+ {
+ /* if hugepages are needed we need to create mount point */
+ if (a->flags & CLIB_MEM_VM_F_HUGETLB)
+ {
+ char *mount_dir;
+ char template[] = "/tmp/hugepage_mount.XXXXXX";
+
+ mount_dir = mkdtemp (template);
+ if (mount_dir == 0)
+ return clib_error_return_unix (0, "mkdtemp \'%s\'", template);
+
+ if (mount ("none", (char *) mount_dir, "hugetlbfs", 0, NULL))
+ {
+ err = clib_error_return_unix (0, "mount hugetlb directory '%s'",
+ mount_dir);
+ goto error;
+ }
+
+ filename = format (0, "%s/%s%c", mount_dir, a->name, 0);
+
+ if ((fd = open ((char *) filename, O_CREAT | O_RDWR, 0755)) == -1)
+ {
+ err = clib_error_return_unix (0, "open");
+ goto error;
+ }
+ umount2 ((char *) mount_dir, MNT_DETACH);
+ rmdir ((char *) mount_dir);
+ mmap_flags |= MAP_LOCKED;
+ }
+ else
+ {
+ if ((fd = memfd_create (a->name, MFD_ALLOW_SEALING)) == -1)
+ {
+ err = clib_error_return_unix (0, "memfd_create");
+ goto error;
+ }
+
+ if ((fcntl (fd, F_ADD_SEALS, F_SEAL_SHRINK)) == -1)
+ {
+ err = clib_error_return_unix (0, "fcntl (F_ADD_SEALS)");
+ goto error;
+ }
+ }
+ log2_page_size = clib_mem_vm_get_log2_page_size (fd);
+ }
+ else /* not CLIB_MEM_VM_F_SHARED */
+ {
+ if (a->flags & CLIB_MEM_VM_F_HUGETLB)
+ {
+ mmap_flags |= MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS;
+ log2_page_size = 21;
+ }
+ else
+ {
+ mmap_flags |= MAP_PRIVATE | MAP_ANONYMOUS;
+ log2_page_size = min_log2 (sysconf (_SC_PAGESIZE));
+ }
+ }
+
+ n_pages = ((a->size - 1) >> log2_page_size) + 1;
+
+
+ if (a->flags & CLIB_MEM_VM_F_HUGETLB_PREALLOC)
+ {
+ err = clib_sysfs_prealloc_hugepages (a->numa_node,
+ 1 << (log2_page_size - 10),
+ n_pages);
+ if (err)
+ goto error;
+
+ }
+
+ if (fd != -1)
+ if ((ftruncate (fd, a->size)) == -1)
+ {
+ err = clib_error_return_unix (0, "ftruncate");
+ goto error;
+ }
+
+ if (old_mpol != -1)
+ {
+ int rv;
+ u64 mask[16] = { 0 };
+ mask[0] = 1 << a->numa_node;
+ rv = set_mempolicy (MPOL_BIND, mask, sizeof (mask) * 8 + 1);
+ if (rv)
+ {
+ err = clib_error_return_unix (0, "set_mempolicy");
+ goto error;
+ }
+ }
+
+ addr = mmap (0, a->size, (PROT_READ | PROT_WRITE), mmap_flags, fd, 0);
+ if (addr == MAP_FAILED)
+ {
+ err = clib_error_return_unix (0, "mmap");
+ goto error;
+ }
+
+ /* re-apply ole numa memory policy */
+ if (old_mpol != -1 &&
+ set_mempolicy (old_mpol, old_mask, sizeof (old_mask) * 8 + 1) == -1)
+ {
+ err = clib_error_return_unix (0, "set_mempolicy");
+ goto error;
+ }
+
+ a->log2_page_size = log2_page_size;
+ a->n_pages = n_pages;
+ a->addr = addr;
+ a->fd = fd;
+ goto done;
+
+error:
+ if (fd != -1)
+ close (fd);
+
+done:
+ vec_free (filename);
+ return err;
+}
+
+u64 *
+clib_mem_vm_get_paddr (void *mem, int log2_page_size, int n_pages)
+{
+ int pagesize = sysconf (_SC_PAGESIZE);
+ int fd;
+ int i;
+ u64 *r = 0;
+
+ if ((fd = open ((char *) "/proc/self/pagemap", O_RDONLY)) == -1)
+ return 0;
+
+ for (i = 0; i < n_pages; i++)
+ {
+ u64 seek, pagemap = 0;
+ uword vaddr = pointer_to_uword (mem) + (((u64) i) << log2_page_size);
+ seek = ((u64) vaddr / pagesize) * sizeof (u64);
+ if (lseek (fd, seek, SEEK_SET) != seek)
+ goto done;
+
+ if (read (fd, &pagemap, sizeof (pagemap)) != (sizeof (pagemap)))
+ goto done;
+
+ if ((pagemap & (1ULL << 63)) == 0)
+ goto done;
+
+ pagemap &= pow2_mask (55);
+ vec_add1 (r, pagemap * pagesize);
+ }
+
+done:
+ close (fd);
+ if (vec_len (r) != n_pages)
+ {
+ vec_free (r);
+ return 0;
+ }
+ return r;
+}
+
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
#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
+#include <unistd.h>
+#include <sys/syscall.h>
-static inline int
-memfd_create (const char *name, unsigned int flags)
+static inline long
+set_mempolicy (int mode, const unsigned long *nodemask, unsigned long maxnode)
{
- return syscall (__NR_memfd_create, name, flags);
+ return syscall (__NR_set_mempolicy, mode, nodemask, maxnode);
}
-#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)
+static inline int
+get_mempolicy (int *mode, unsigned long *nodemask, unsigned long maxnode,
+ void *addr, unsigned long flags)
+{
+ return syscall (__NR_get_mempolicy, mode, nodemask, maxnode, addr, flags);
+}
-#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 */
+static inline long
+move_pages (int pid, unsigned long count, void **pages, const int *nodes,
+ int *status, int flags)
+{
+ return syscall (__NR_move_pages, pid, count, pages, nodes, status, flags);
+}
+static inline int
+memfd_create (const char *name, unsigned int flags)
+{
+ return syscall (__NR_memfd_create, name, flags);
+}
#endif /* included_linux_syscall_h */
* limitations under the License.
*/
-#include <vlib/vlib.h>
-#include <vlib/unix/unix.h>
+#include <vppinfra/clib.h>
+#include <vppinfra/clib_error.h>
+#include <vppinfra/format.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
clib_error_t *
-vlib_sysfs_write (char *file_name, char *fmt, ...)
+clib_sysfs_write (char *file_name, char *fmt, ...)
{
u8 *s;
int fd;
}
clib_error_t *
-vlib_sysfs_read (char *file_name, char *fmt, ...)
+clib_sysfs_read (char *file_name, char *fmt, ...)
{
unformat_input_t input;
u8 *s = 0;
}
u8 *
-vlib_sysfs_link_to_name (char *link)
+clib_sysfs_link_to_name (char *link)
{
char *p, buffer[64];
unformat_input_t in;
}
clib_error_t *
-vlib_sysfs_set_nr_hugepages (unsigned int numa_node, int page_size, int nr)
+clib_sysfs_set_nr_hugepages (int numa_node, int page_size, int nr)
{
clib_error_t *error = 0;
struct stat sb;
_vec_len (p) -= 1;
p = format (p, "/hugepages/hugepages-%ukB/nr_hugepages%c", page_size, 0);
- vlib_sysfs_write ((char *) p, "%d", nr);
+ clib_sysfs_write ((char *) p, "%d", nr);
done:
vec_free (p);
static clib_error_t *
-vlib_sysfs_get_xxx_hugepages (char *type, unsigned int numa_node,
+clib_sysfs_get_xxx_hugepages (char *type, int numa_node,
int page_size, int *val)
{
clib_error_t *error = 0;
_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);
+ error = clib_sysfs_read ((char *) p, "%d", val);
done:
vec_free (p);
}
clib_error_t *
-vlib_sysfs_get_free_hugepages (unsigned int numa_node, int page_size, int *v)
+clib_sysfs_get_free_hugepages (int numa_node, int page_size, int *v)
{
- return vlib_sysfs_get_xxx_hugepages ("free", numa_node, page_size, v);
+ return clib_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)
+clib_sysfs_get_nr_hugepages (int numa_node, int page_size, int *v)
{
- return vlib_sysfs_get_xxx_hugepages ("nr", numa_node, page_size, v);
+ return clib_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)
+clib_sysfs_get_surplus_hugepages (int numa_node, int page_size, int *v)
{
- return vlib_sysfs_get_xxx_hugepages ("surplus", numa_node, page_size, v);
+ return clib_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_sysfs_prealloc_hugepages (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);
+ error = clib_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);
+ error = clib_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);
+ return clib_sysfs_set_nr_hugepages (numa_node, page_size, n + needed);
}
#ifndef included_linux_sysfs_h
#define included_linux_sysfs_h
-clib_error_t *vlib_sysfs_write (char *file_name, char *fmt, ...);
+#include <vppinfra/error.h>
-clib_error_t *vlib_sysfs_read (char *file_name, char *fmt, ...);
+clib_error_t *clib_sysfs_write (char *file_name, char *fmt, ...);
-u8 *vlib_sysfs_link_to_name (char *link);
+clib_error_t *clib_sysfs_read (char *file_name, char *fmt, ...);
-clib_error_t *vlib_sysfs_set_nr_hugepages (unsigned int numa_node,
+u8 *clib_sysfs_link_to_name (char *link);
+
+clib_error_t *clib_sysfs_set_nr_hugepages (int numa_node,
int page_size, int nr);
-clib_error_t *vlib_sysfs_get_nr_hugepages (unsigned int numa_node,
+clib_error_t *clib_sysfs_get_nr_hugepages (int numa_node,
int page_size, int *v);
-clib_error_t *vlib_sysfs_get_free_hugepages (unsigned int numa_node,
+clib_error_t *clib_sysfs_get_free_hugepages (int numa_node,
int page_size, int *v);
-clib_error_t *vlib_sysfs_get_surplus_hugepages (unsigned int numa_node,
+clib_error_t *clib_sysfs_get_surplus_hugepages (int numa_node,
int page_size, int *v);
-clib_error_t *vlib_sysfs_prealloc_hugepages (unsigned int numa_node,
+clib_error_t *clib_sysfs_prealloc_hugepages (int numa_node,
int page_size, int nr);
#endif /* included_linux_sysfs_h */
#define _included_clib_mem_h
#include <stdarg.h>
+#include <unistd.h>
+#include <sys/mman.h>
#include <vppinfra/clib.h> /* uword, etc */
+#include <vppinfra/clib_error.h>
#include <vppinfra/mheap_bootstrap.h>
#include <vppinfra/os.h>
#include <vppinfra/string.h> /* memcpy, memset */
u8 *format_clib_mem_usage (u8 * s, va_list * args);
-/* Include appropriate VM functions depending on whether
- we are compiling for linux kernel, for Unix or standalone. */
-#ifdef CLIB_LINUX_KERNEL
-#include <vppinfra/vm_linux_kernel.h>
-#endif
+/* Allocate virtual address space. */
+always_inline void *
+clib_mem_vm_alloc (uword size)
+{
+ void *mmap_addr;
+ uword flags = MAP_PRIVATE;
-#ifdef CLIB_UNIX
-#include <vppinfra/vm_unix.h>
+#ifdef MAP_ANONYMOUS
+ flags |= MAP_ANONYMOUS;
#endif
-#ifdef CLIB_STANDALONE
-#include <vppinfra/vm_standalone.h>
-#endif
+ mmap_addr = mmap (0, size, PROT_READ | PROT_WRITE, flags, -1, 0);
+ if (mmap_addr == (void *) -1)
+ mmap_addr = 0;
+
+ return mmap_addr;
+}
+
+always_inline void
+clib_mem_vm_free (void *addr, uword size)
+{
+ munmap (addr, size);
+}
+
+always_inline void *
+clib_mem_vm_unmap (void *addr, uword size)
+{
+ void *mmap_addr;
+ uword flags = MAP_PRIVATE | MAP_FIXED;
+
+ /* To unmap we "map" with no protection. If we actually called
+ munmap then other callers could steal the address space. By
+ changing to PROT_NONE the kernel can free up the pages which is
+ really what we want "unmap" to mean. */
+ mmap_addr = mmap (addr, size, PROT_NONE, flags, -1, 0);
+ if (mmap_addr == (void *) -1)
+ mmap_addr = 0;
+
+ return mmap_addr;
+}
+
+always_inline void *
+clib_mem_vm_map (void *addr, uword size)
+{
+ void *mmap_addr;
+ uword flags = MAP_PRIVATE | MAP_FIXED;
+
+ mmap_addr = mmap (addr, size, (PROT_READ | PROT_WRITE), flags, -1, 0);
+ if (mmap_addr == (void *) -1)
+ mmap_addr = 0;
+
+ return mmap_addr;
+}
+
+typedef struct
+{
+#define CLIB_MEM_VM_F_SHARED (1 << 0)
+#define CLIB_MEM_VM_F_HUGETLB (1 << 1)
+#define CLIB_MEM_VM_F_NUMA_PREFER (1 << 2)
+#define CLIB_MEM_VM_F_NUMA_FORCE (1 << 3)
+#define CLIB_MEM_VM_F_HUGETLB_PREALLOC (1 << 4)
+ u32 flags; /**< vm allocation flags:
+ <br> CLIB_MEM_VM_F_SHARED: request shared memory, file
+ destiptor will be provided on successful allocation.
+ <br> CLIB_MEM_VM_F_HUGETLB: request hugepages.
+ <br> CLIB_MEM_VM_F_NUMA_PREFER: numa_node field contains valid
+ numa node preference.
+ <br> CLIB_MEM_VM_F_NUMA_FORCE: fail if setting numa policy fails.
+ <br> CLIB_MEM_VM_F_HUGETLB_PREALLOC: pre-allocate hugepages if
+ number of available pages is not sufficient.
+ */
+ char *name; /**< Name for memory allocation, set by caller. */
+ uword size; /**< Allocation size, set by caller. */
+ int numa_node; /**< numa node preference. Valid if CLIB_MEM_VM_F_NUMA_PREFER set. */
+ void *addr; /**< Pointer to allocated memory, set on successful allocation. */
+ int fd; /**< File desriptor, set on successful allocation if CLIB_MEM_VM_F_SHARED is set. */
+ int log2_page_size; /* Page size in log2 format, set on successful allocation. */
+ int n_pages; /* Number of pages. */
+} clib_mem_vm_alloc_t;
+
+clib_error_t *clib_mem_vm_ext_alloc (clib_mem_vm_alloc_t * a);
+int clib_mem_vm_get_log2_page_size (int fd);
+u64 *clib_mem_vm_get_paddr (void *mem, int log2_page_size, int n_pages);
+
#include <vppinfra/error.h> /* clib_panic */
+++ /dev/null
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#ifndef included_vm_linux_kernel_h
-#define included_vm_linux_kernel_h
-
-#include <linux/vmalloc.h>
-#include <linux/gfp.h> /* for GFP_* */
-#include <asm/pgtable.h> /* for PAGE_KERNEL */
-
-/* Allocate virtual address space. */
-always_inline void *
-clib_mem_vm_alloc (uword size)
-{
- return vmalloc (size);
-}
-
-always_inline void
-clib_mem_vm_free (void *addr, uword size)
-{
- vfree (addr);
-}
-
-always_inline void *
-clib_mem_vm_unmap (void *addr, uword size)
-{
- return 0;
-}
-
-always_inline void *
-clib_mem_vm_map (void *addr, uword size)
-{
- return addr;
-}
-
-#endif /* included_vm_linux_kernel_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
+++ /dev/null
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#ifndef included_vm_standalone_h
-#define included_vm_standalone_h
-
-/* Stubs for standalone "system" which has no VM support. */
-
-always_inline void *
-clib_mem_vm_alloc (uword size)
-{
- return 0;
-}
-
-always_inline void
-clib_mem_vm_free (void *addr, uword size)
-{
-}
-
-always_inline void *
-clib_mem_vm_unmap (void *addr, uword size)
-{
- return 0;
-}
-
-always_inline void *
-clib_mem_vm_map (void *addr, uword size)
-{
- return addr;
-}
-
-#endif /* included_vm_standalone_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
+++ /dev/null
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#ifndef included_vm_unix_h
-#define included_vm_unix_h
-
-#include <unistd.h>
-#include <sys/mman.h>
-
-/* Allocate virtual address space. */
-always_inline void *
-clib_mem_vm_alloc (uword size)
-{
- void *mmap_addr;
- uword flags = MAP_PRIVATE;
-
-#ifdef MAP_ANONYMOUS
- flags |= MAP_ANONYMOUS;
-#endif
-
- mmap_addr = mmap (0, size, PROT_READ | PROT_WRITE, flags, -1, 0);
- if (mmap_addr == (void *) -1)
- mmap_addr = 0;
-
- return mmap_addr;
-}
-
-always_inline void
-clib_mem_vm_free (void *addr, uword size)
-{
- munmap (addr, size);
-}
-
-always_inline void *
-clib_mem_vm_unmap (void *addr, uword size)
-{
- void *mmap_addr;
- uword flags = MAP_PRIVATE | MAP_FIXED;
-
- /* To unmap we "map" with no protection. If we actually called
- munmap then other callers could steal the address space. By
- changing to PROT_NONE the kernel can free up the pages which is
- really what we want "unmap" to mean. */
- mmap_addr = mmap (addr, size, PROT_NONE, flags, -1, 0);
- if (mmap_addr == (void *) -1)
- mmap_addr = 0;
-
- return mmap_addr;
-}
-
-always_inline void *
-clib_mem_vm_map (void *addr, uword size)
-{
- void *mmap_addr;
- uword flags = MAP_PRIVATE | MAP_FIXED;
-
- mmap_addr = mmap (addr, size, (PROT_READ | PROT_WRITE), flags, -1, 0);
- if (mmap_addr == (void *) -1)
- mmap_addr = 0;
-
- return mmap_addr;
-}
-
-#endif /* included_vm_unix_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
Code Review / vpp.git / commitdiff