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DPCs

include/thread/dpc.h View source View on GitHub

Structs

Section titled “Structs”

dpc

Section titled “dpc”
struct dpc (5 fields) source
§ dpc_func_t func
§ void *a
§ void *b
§ atomic(struct dpc *) next

for MPSC push

§ atomic_bool enqueued

prevents double-enqueue

dpc_context

Section titled “dpc_context”
struct dpc_context (1 field) source
§ struct dpc *dpc

dpc_queue

Section titled “dpc_queue”
struct dpc_queue (1 field) source
§ atomic(struct dpc *) head

Per-cpu DPC data

dpc_cpu

Section titled “dpc_cpu”
struct dpc_cpu (1 field) source
§ struct dpc_queue queue

Type Aliases

Section titled “Type Aliases”

dpc_func_t

Section titled “dpc_func_t”
typedef void (*dpc_func_t)(struct dpc_context * d, void * a, void * b)
source

dpc_fanout_fn_t

Section titled “dpc_fanout_fn_t”
typedef void (*dpc_fanout_fn_t)(void)
source

Functions

Section titled “Functions”

dpc_drain_local

Section titled “dpc_drain_local”
void dpc_drain_local(void)
source

dpc_run_local

Section titled “dpc_run_local”
void dpc_run_local(void)
source

dpc_run_dpcs_from_irq

Section titled “dpc_run_dpcs_from_irq”
void dpc_run_dpcs_from_irq(void)
source

dpc_create

Section titled “dpc_create”
struct dpc * dpc_create(dpc_func_t fn, void *a, void *b)
source

dpc_init

Section titled “dpc_init”
struct dpc * dpc_init(struct dpc *d, dpc_func_t fn, void *a, void *b)
source

dpc_fanout

Section titled “dpc_fanout”
void dpc_fanout(
    struct dpc *cc_nonnull_ptr,
    struct cpu_mask cpus,
    dpc_fanout_fn_t cc_nonnull_ptr
)
source

Run fn once on every CPU in cpus, returning only after all of them complete.

NOTE

storage must hold at least popcount(cpus) DPCs, this is what the caller must uphold. storage entries get overwritten every call as well

dpc_init_percpu

Section titled “dpc_init_percpu”
void dpc_init_percpu(void)
source

dpc_enqueue_local

Section titled “dpc_enqueue_local”
bool dpc_enqueue_local(struct dpc *d)
source

dpc_enqueue_on_cpu

Section titled “dpc_enqueue_on_cpu”
bool dpc_enqueue_on_cpu(size_t cpu, struct dpc *cc_nonnull_ptr)
source