diff options
Diffstat (limited to 'include/linux/bpf.h')
| -rw-r--r-- | include/linux/bpf.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index e0dbe0c0a17e..33e543b86e1a 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -451,7 +451,7 @@ enum bpf_type_flag { /* DYNPTR points to memory local to the bpf program. */ DYNPTR_TYPE_LOCAL = BIT(8 + BPF_BASE_TYPE_BITS), - /* DYNPTR points to a ringbuf record. */ + /* DYNPTR points to a kernel-produced ringbuf record. */ DYNPTR_TYPE_RINGBUF = BIT(9 + BPF_BASE_TYPE_BITS), /* Size is known at compile time. */ @@ -656,6 +656,7 @@ enum bpf_reg_type { PTR_TO_MEM, /* reg points to valid memory region */ PTR_TO_BUF, /* reg points to a read/write buffer */ PTR_TO_FUNC, /* reg points to a bpf program function */ + PTR_TO_DYNPTR, /* reg points to a dynptr */ __BPF_REG_TYPE_MAX, /* Extended reg_types. */ @@ -1394,6 +1395,11 @@ struct bpf_array { #define BPF_MAP_CAN_READ BIT(0) #define BPF_MAP_CAN_WRITE BIT(1) +/* Maximum number of user-producer ring buffer samples that can be drained in + * a call to bpf_user_ringbuf_drain(). + */ +#define BPF_MAX_USER_RINGBUF_SAMPLES (128 * 1024) + static inline u32 bpf_map_flags_to_cap(struct bpf_map *map) { u32 access_flags = map->map_flags & (BPF_F_RDONLY_PROG | BPF_F_WRONLY_PROG); @@ -2495,6 +2501,7 @@ extern const struct bpf_func_proto bpf_loop_proto; extern const struct bpf_func_proto bpf_copy_from_user_task_proto; extern const struct bpf_func_proto bpf_set_retval_proto; extern const struct bpf_func_proto bpf_get_retval_proto; +extern const struct bpf_func_proto bpf_user_ringbuf_drain_proto; const struct bpf_func_proto *tracing_prog_func_proto( enum bpf_func_id func_id, const struct bpf_prog *prog); @@ -2639,7 +2646,7 @@ enum bpf_dynptr_type { BPF_DYNPTR_TYPE_INVALID, /* Points to memory that is local to the bpf program */ BPF_DYNPTR_TYPE_LOCAL, - /* Underlying data is a ringbuf record */ + /* Underlying data is a kernel-produced ringbuf record */ BPF_DYNPTR_TYPE_RINGBUF, }; |