diff options
Diffstat (limited to 'svm/svm.h')
| -rw-r--r-- | svm/svm.h | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/svm/svm.h b/svm/svm.h deleted file mode 100644 index 0b87dbcbc64..00000000000 --- a/svm/svm.h +++ /dev/null @@ -1,207 +0,0 @@ -/* - *------------------------------------------------------------------ - * svm.h - shared VM allocation, mmap(...MAP_FIXED...) - * brain police - * - * Copyright (c) 2009 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_svm_h__ -#define __included_svm_h__ - -#include <pthread.h> -#include <vppinfra/clib.h> -#include <vppinfra/mem.h> - -#define MMAP_PAGESIZE (clib_mem_get_page_size()) - -#define SVM_VERSION ((1<<16) | 1) /* set to declare region ready. */ - -#define SVM_FLAGS_MHEAP (1<<0) /* region contains an mheap */ -#define SVM_FLAGS_FILE (1<<1) /* region backed by one or more files */ -#define SVM_FLAGS_NODATA (1<<2) /* region will be further subdivided */ -#define SVM_FLAGS_NEED_DATA_INIT (1<<3) - -#define SVM_PVT_MHEAP_SIZE (128<<10) /* region's private mheap (128k) */ - -typedef struct svm_region_ -{ - volatile uword version; - pthread_mutex_t mutex; - pthread_cond_t condvar; - int mutex_owner_pid; /* in case of trouble */ - int mutex_owner_tag; - uword flags; - uword virtual_base; /* base of the region object */ - uword virtual_size; - void *region_heap; - void *data_base; /* data portion base address */ - void *data_heap; /* data heap, if any */ - volatile void *user_ctx; /* user context pointer */ - /* stuff allocated in the region's heap */ - uword bitmap_size; /* nbits in virtual alloc bitmap */ - uword *bitmap; /* the bitmap */ - char *region_name; - char *backing_file; - char **filenames; - uword *client_pids; - /* pad */ - - /* next page: - * (64K) clib heap for the region itself - * - * data_base -> whatever is in this region - */ - -} svm_region_t; - -typedef struct svm_map_region_args_ -{ - char *root_path; /* NULL means use the truly global arena */ - char *name; - u64 baseva; - u64 size; - u64 pvt_heap_size; - uword flags; - char *backing_file; - uword backing_mmap_size; - /* uid, gid to own the svm region(s) */ - int uid; - int gid; -} svm_map_region_args_t; - - -/* - * Memory shared across all router instances. Packet buffers, etc - * Base should be "out of the way," and size should be big enough to - * cover everything we plan to put here. - */ -#define SVM_GLOBAL_REGION_BASEVA 0x30000000 -#define SVM_GLOBAL_REGION_SIZE (64<<20) -#define SVM_GLOBAL_REGION_NAME "/global_vm" - -/* - * Memory shared across individual router instances. - */ -#define SVM_OVERLAY_REGION_BASEVA \ - (SVM_GLOBAL_REGION_BASEVA + SVM_GLOBAL_REGION_SIZE) -#define SVM_OVERLAY_REGION_SIZE (1<<20) -#define SVM_OVERLAY_REGION_BASENAME "/overlay_vm" - -typedef struct -{ - u8 *subregion_name; -} svm_subregion_t; - -typedef struct -{ - svm_subregion_t *subregions; /* subregion pool */ - uword *name_hash; - u8 *root_path; -} svm_main_region_t; - - -void *svm_region_find_or_create (svm_map_region_args_t * a); -void svm_region_init (void); -void svm_region_init_chroot (char *root_path); -void svm_region_init_chroot_uid_gid (char *root_path, int uid, int gid); -void svm_region_init_args (svm_map_region_args_t * a); -void svm_region_exit (void); -void svm_region_unmap (void *rp_arg); -void svm_client_scan (char *root_path); -void svm_client_scan_this_region_nolock (svm_region_t * rp); -u8 *shm_name_from_svm_map_region_args (svm_map_region_args_t * a); - -static inline void * -svm_mem_alloc (svm_region_t * rp, uword size) -{ - u8 *oldheap; - ASSERT (rp->flags & SVM_FLAGS_MHEAP); - u8 *rv; - - pthread_mutex_lock (&rp->mutex); - oldheap = clib_mem_set_heap (rp->data_heap); - rv = clib_mem_alloc (size); - clib_mem_set_heap (oldheap); - pthread_mutex_unlock (&rp->mutex); - return (rv); -} - -static inline void * -svm_mem_alloc_aligned_at_offset (svm_region_t * rp, - uword size, uword align, uword offset) -{ - u8 *oldheap; - ASSERT (rp->flags & SVM_FLAGS_MHEAP); - u8 *rv; - - pthread_mutex_lock (&rp->mutex); - oldheap = clib_mem_set_heap (rp->data_heap); - rv = clib_mem_alloc_aligned_at_offset (size, align, offset, - 1 /* yes, call os_out_of_memory */ ); - clib_mem_set_heap (oldheap); - pthread_mutex_unlock (&rp->mutex); - return (rv); -} - -static inline void -svm_mem_free (svm_region_t * rp, void *ptr) -{ - u8 *oldheap; - ASSERT (rp->flags & SVM_FLAGS_MHEAP); - - pthread_mutex_lock (&rp->mutex); - oldheap = clib_mem_set_heap (rp->data_heap); - clib_mem_free (ptr); - clib_mem_set_heap (oldheap); - pthread_mutex_unlock (&rp->mutex); - -} - -static inline void * -svm_push_pvt_heap (svm_region_t * rp) -{ - u8 *oldheap; - oldheap = clib_mem_set_heap (rp->region_heap); - return ((void *) oldheap); -} - -static inline void * -svm_push_data_heap (svm_region_t * rp) -{ - u8 *oldheap; - oldheap = clib_mem_set_heap (rp->data_heap); - return ((void *) oldheap); -} - -static inline void -svm_pop_heap (void *oldheap) -{ - clib_mem_set_heap (oldheap); -} - -u8 *format_svm_region (u8 * s, va_list * args); - -svm_region_t *svm_get_root_rp (void); - -#endif /* __included_svm_h__ */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |