diff options
author | Dave Barach <dave@barachs.net> | 2016-07-08 14:44:23 -0400 |
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committer | Dave Barach <dave@barachs.net> | 2016-07-08 14:44:38 -0400 |
commit | 8a7fb0cf6844ed09173fd58224f7753a1b504cf4 (patch) | |
tree | 45e21bd6bac95034fd589daf0ea898c6ede80afa /svm/svm.h | |
parent | 49a6963b1387bf7535f589f02ffc99de5b59192f (diff) |
fd-io-styleify for svm
Change-Id: I816de8b1f255dc3bc6d2904566ea0b0f68fac5d8
Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'svm/svm.h')
-rw-r--r-- | svm/svm.h | 238 |
1 files changed, 127 insertions, 111 deletions
diff --git a/svm/svm.h b/svm/svm.h index bca23792059..1682b7ad2fa 100644 --- a/svm/svm.h +++ b/svm/svm.h @@ -1,6 +1,6 @@ -/* +/* *------------------------------------------------------------------ - * svm.h - shared VM allocation, mmap(...MAP_FIXED...) + * svm.h - shared VM allocation, mmap(...MAP_FIXED...) * brain police * * Copyright (c) 2009 Cisco and/or its affiliates. @@ -27,162 +27,178 @@ #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 - */ +#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; - uword baseva; - uword size; - uword flags; - char *backing_file; - uword backing_mmap_size; - /* uid, gid to own the svm region(s) */ - int uid; - int gid; +typedef struct svm_map_region_args_ +{ + char *root_path; /* NULL means use the truly global arena */ + char *name; + uword baseva; + uword 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 + * 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_SIZE (64<<20) #define SVM_GLOBAL_REGION_NAME "/global_vm" /* - * Memory shared across individual router instances. + * 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_SIZE (1<<20) #define SVM_OVERLAY_REGION_BASENAME "/overlay_vm" -typedef struct { - u8 *subregion_name; +typedef struct +{ + u8 *subregion_name; } svm_subregion_t; -typedef struct { - svm_subregion_t *subregions; /* subregion pool */ - uword *name_hash; - u8 *root_path; +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_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_exit (void); -void svm_region_unmap(void *rp_arg); +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); +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) +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); + 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) +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); - clib_mem_set_heap(oldheap); - pthread_mutex_unlock(&rp->mutex); - return (rv); + 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); + clib_mem_set_heap (oldheap); + pthread_mutex_unlock (&rp->mutex); + return (rv); } -static inline void svm_mem_free (svm_region_t *rp, void *ptr) +static inline void +svm_mem_free (svm_region_t * rp, void *ptr) { - u8 *oldheap; - ASSERT(rp->flags & SVM_FLAGS_MHEAP); + 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); + 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) +static inline void * +svm_push_pvt_heap (svm_region_t * rp) { - u8 *oldheap; - oldheap = clib_mem_set_heap(rp->region_heap); - return ((void *) oldheap); + u8 *oldheap; + oldheap = clib_mem_set_heap (rp->region_heap); + return ((void *) oldheap); } -static inline void *svm_push_data_heap (svm_region_t *rp) +static inline void * +svm_push_data_heap (svm_region_t * rp) { - u8 *oldheap; - oldheap = clib_mem_set_heap(rp->data_heap); - return ((void *) oldheap); + u8 *oldheap; + oldheap = clib_mem_set_heap (rp->data_heap); + return ((void *) oldheap); } -static inline void svm_pop_heap (void *oldheap) +static inline void +svm_pop_heap (void *oldheap) { - clib_mem_set_heap(oldheap); + clib_mem_set_heap (oldheap); } -u8 * format_svm_region (u8 * s, va_list * args); +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: + */ |