svm: refactor memfd and remove ssvm_eth

[vpp.git] / src / svm / memfd.h

diff --git a/src/svm/memfd.h b/src/svm/memfd.h
deleted file mode 100644 (file)
index 3ed4a9a..0000000
--- a/src/svm/memfd.h
+++ /dev/null
@@ -1,194 +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.
- */
-#ifndef __included_memfd_h__
-#define __included_memfd_h__
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <netinet/in.h>
-#include <signal.h>
-#include <pthread.h>
-#include <unistd.h>
-#include <time.h>
-#include <fcntl.h>
-#include <string.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/vec.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/bitmap.h>
-#include <vppinfra/fifo.h>
-#include <vppinfra/time.h>
-#include <vppinfra/mheap.h>
-#include <vppinfra/heap.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/format.h>
-/* DGMS, memfd syscall not in glibc... */
-#include <vppinfra/linux/syscall.h>
-
-#ifndef MMAP_PAGESIZE
-#define MMAP_PAGESIZE (clib_mem_get_page_size())
-#endif
-
-#define MEMFD_N_OPAQUE 7
-
-typedef struct
-{
-  /* Spin-lock */
-  volatile u32 lock;
-  volatile u32 owner_pid;
-  int recursion_count;
-  u32 tag;                     /* for debugging */
-
-  /* The allocation arena */
-  void *heap;
-
-  /* Segment must be mapped at this address, or no supper */
-  u64 memfd_va;
-  /* The actual mmap size */
-  u64 memfd_size;
-  u32 master_pid;
-  u32 slave_pid;
-  u8 *name;
-  void *opaque[MEMFD_N_OPAQUE];
-
-  /* Set when the master application thinks it's time to make the donuts */
-  volatile u32 ready;
-
-  /* Needed to make unique MAC addresses, etc. */
-  u32 master_index;
-} memfd_shared_header_t;
-
-typedef struct
-{
-  memfd_shared_header_t *sh;
-  int fd;
-  u64 memfd_size;
-  u32 my_pid;
-  u32 vlib_hw_if_index;
-  uword requested_va;
-  int i_am_master;
-  u32 per_interface_next_index;
-  u32 *rx_queue;
-  u8 *name;
-} memfd_private_t;
-
-always_inline void
-memfd_lock (memfd_shared_header_t * h, u32 my_pid, u32 tag)
-{
-  if (h->owner_pid == my_pid)
-    {
-      h->recursion_count++;
-      return;
-    }
-
-  while (__sync_lock_test_and_set (&h->lock, 1))
-    ;
-
-  h->owner_pid = my_pid;
-  h->recursion_count = 1;
-  h->tag = tag;
-}
-
-always_inline void
-memfd_lock_non_recursive (memfd_shared_header_t * h, u32 tag)
-{
-  while (__sync_lock_test_and_set (&h->lock, 1))
-    ;
-
-  h->tag = tag;
-}
-
-always_inline void
-memfd_unlock (memfd_shared_header_t * h)
-{
-  if (--h->recursion_count == 0)
-    {
-      h->owner_pid = 0;
-      h->tag = 0;
-      CLIB_MEMORY_BARRIER ();
-      h->lock = 0;
-    }
-}
-
-always_inline void
-memfd_unlock_non_recursive (memfd_shared_header_t * h)
-{
-  h->tag = 0;
-  CLIB_MEMORY_BARRIER ();
-  h->lock = 0;
-}
-
-static inline void *
-memfd_push_heap (memfd_shared_header_t * sh)
-{
-  u8 *oldheap;
-  oldheap = clib_mem_set_heap (sh->heap);
-  return ((void *) oldheap);
-}
-
-static inline void
-memfd_pop_heap (void *oldheap)
-{
-  clib_mem_set_heap (oldheap);
-}
-
-#define foreach_memfd_api_error                  \
-_(NO_NAME, "No shared segment name", -100)      \
-_(NO_SIZE, "Size not set (master)", -101)       \
-_(CREATE_FAILURE, "Create failed", -102)        \
-_(SET_SIZE, "Set size failed", -103)           \
-_(MMAP, "mmap failed", -104)                   \
-_(SLAVE_TIMEOUT, "Slave map timeout", -105)
-
-typedef enum
-{
-#define _(n,s,c) MEMFD_API_ERROR_##n = c,
-  foreach_memfd_api_error
-#undef _
-} memfd_api_error_enum_t;
-
-#define MEMFD_API_ERROR_NO_NAME        (-10)
-
-int memfd_master_init (memfd_private_t * memfd, u32 master_index);
-int memfd_slave_init (memfd_private_t * memfd);
-void memfd_delete (memfd_private_t * memfd);
-
-/* These do not belong here, but the original keeps running around... */
-/* $$$$ work w/ Damjan to fix properly */
-
-#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_memfd_h__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */