typedef struct
{
vnet_crypto_async_frame_t *f;
+ union
+ {
+ struct
+ {
+ /* index of frame elt where enque to
+ * the crypto engine is happening */
+ u8 enq_elts_head;
+ /* index of the frame elt where dequeue
+ * from the crypto engine is happening */
+ u8 deq_elts_tail;
+ u8 elts_inflight;
- u8 enqueued;
- u8 dequeued;
- u8 deq_state;
- u8 frame_inflight;
+ u8 op_type;
+ u8 aad_len;
+ u8 n_elts;
+ u16 reserved;
+ };
+ u64 raw;
+ };
- u8 op_type;
- u8 aad_len;
- u8 n_elts;
- u8 reserved;
-} cryptodev_async_ring_elt;
+ u64 frame_elts_errs_mask;
+} cryptodev_cache_ring_elt_t;
typedef struct
{
- cryptodev_async_ring_elt frames[VNET_CRYPTO_FRAME_POOL_SIZE];
- uint16_t head;
- uint16_t tail;
- uint16_t enq; /*record the frame currently being enqueued */
- uint16_t deq; /*record the frame currently being dequeued */
-} cryptodev_async_frame_sw_ring;
+ cryptodev_cache_ring_elt_t frames[VNET_CRYPTO_FRAME_POOL_SIZE];
+
+ union
+ {
+ struct
+ {
+ /* head of the cache ring */
+ u16 head;
+ /* tail of the cache ring */
+ u16 tail;
+ /* index of the frame where enqueue
+ * to the crypto engine is happening */
+ u16 enq_head;
+ /* index of the frame where dequeue
+ * from the crypto engine is happening */
+ u16 deq_tail;
+ };
+ u64 raw;
+ };
+} cryptodev_cache_ring_t;
typedef struct
{
};
};
- cryptodev_async_frame_sw_ring frame_ring;
+ cryptodev_cache_ring_t cache_ring;
u16 cryptodev_id;
u16 cryptodev_q;
- u16 frames_on_ring;
- u16 enqueued_not_dequeueq;
- u16 deqeued_not_returned;
- u16 pending_to_qat;
u16 inflight;
} cryptodev_engine_thread_t;
extern cryptodev_main_t cryptodev_main;
+#define CRYPTODEV_CACHE_RING_GET_FRAME(r, i) \
+ ((r)->frames[(i) &CRYPTODEV_CACHE_QUEUE_MASK].f)
+
+#define CRYPTODEV_CACHE_RING_GET_ERR_MASK(r, i) \
+ ((r)->frames[(i) &CRYPTODEV_CACHE_QUEUE_MASK].frame_elts_errs_mask)
+
+#define CRYPTODEV_CACHE_RING_GET_FRAME_ELTS_INFLIGHT(r, i) \
+ (((r)->frames[(i) &CRYPTODEV_CACHE_QUEUE_MASK].enq_elts_head) - \
+ ((r)->frames[(i) &CRYPTODEV_CACHE_QUEUE_MASK].deq_elts_tail))
+
static_always_inline void
-cryptodev_mark_frame_err_status (vnet_crypto_async_frame_t *f,
- vnet_crypto_op_status_t s,
- vnet_crypto_async_frame_state_t fs)
+cryptodev_cache_ring_update_enq_head (cryptodev_cache_ring_t *r,
+ vnet_crypto_async_frame_t *f)
+{
+ if (r->frames[r->enq_head].enq_elts_head == f->n_elts)
+ {
+ r->enq_head++;
+ r->enq_head &= CRYPTODEV_CACHE_QUEUE_MASK;
+ f->state = VNET_CRYPTO_FRAME_STATE_NOT_PROCESSED;
+ }
+}
+
+static_always_inline bool
+cryptodev_cache_ring_update_deq_tail (cryptodev_cache_ring_t *r,
+ u16 *const deq)
{
- u32 n_elts = f->n_elts, i;
+ if (r->frames[*deq].deq_elts_tail == r->frames[*deq].n_elts)
+ {
+ *deq += 1;
+ *deq &= CRYPTODEV_CACHE_QUEUE_MASK;
+ return 1;
+ }
+
+ return 0;
+}
+static_always_inline u64
+cryptodev_mark_frame_fill_err (vnet_crypto_async_frame_t *f, u64 current_err,
+ u16 index, u16 n, vnet_crypto_op_status_t op_s)
+{
+ u64 err = current_err;
+ u16 i;
+
+ ERROR_ASSERT (index + n <= VNET_CRYPTO_FRAME_SIZE);
+ ERROR_ASSERT (op_s != VNET_CRYPTO_OP_STATUS_COMPLETED);
+
+ for (i = index; i < (index + n); i++)
+ f->elts[i].status = op_s;
+
+ err |= (~(~(0u) << n) << index);
+
+ return err;
+}
+
+static_always_inline cryptodev_cache_ring_elt_t *
+cryptodev_cache_ring_push (cryptodev_cache_ring_t *r,
+ vnet_crypto_async_frame_t *f)
+{
+ u16 head = r->head;
+ cryptodev_cache_ring_elt_t *ring_elt = &r->frames[head];
+ /**
+ * in debug mode we do the ring sanity test when a frame is enqueued to
+ * the ring.
+ **/
+#if CLIB_DEBUG > 0
+ u16 tail = r->tail;
+ u16 n_cached = (head >= tail) ? (head - tail) :
+ (CRYPTODEV_CACHE_QUEUE_MASK - tail + head);
+ ERROR_ASSERT (n_cached < VNET_CRYPTO_FRAME_POOL_SIZE);
+ ERROR_ASSERT (r->raw == 0 && r->frames[head].raw == 0 &&
+ r->frames[head].f == 0);
+#endif
+ ring_elt->f = f;
+ ring_elt->n_elts = f->n_elts;
+ /* update head */
+ r->head++;
+ r->head &= CRYPTODEV_CACHE_QUEUE_MASK;
+ return ring_elt;
+}
+
+static_always_inline vnet_crypto_async_frame_t *
+cryptodev_cache_ring_pop (cryptodev_cache_ring_t *r)
+{
+ vnet_crypto_async_frame_t *f;
+ u16 tail = r->tail;
+ cryptodev_cache_ring_elt_t *ring_elt = &r->frames[tail];
+
+ ERROR_ASSERT (r->frames[r->head].raw == 0 ? r->head != tail : 1);
+ ERROR_ASSERT (r->frames[tail].raw != 0);
+ ERROR_ASSERT (ring_elt->deq_elts_tail == ring_elt->enq_elts_head &&
+ ring_elt->deq_elts_tail == ring_elt->n_elts);
+
+ f = CRYPTODEV_CACHE_RING_GET_FRAME (r, tail);
+ f->state = CRYPTODEV_CACHE_RING_GET_ERR_MASK (r, r->tail) == 0 ?
+ VNET_CRYPTO_FRAME_STATE_SUCCESS :
+ VNET_CRYPTO_FRAME_STATE_ELT_ERROR;
+
+ clib_memset (ring_elt, 0, sizeof (*ring_elt));
+ r->tail++;
+ r->tail &= CRYPTODEV_CACHE_QUEUE_MASK;
- for (i = 0; i < n_elts; i++)
- f->elts[i].status = s;
- f->state = fs;
+ return f;
}
int cryptodev_session_create (vlib_main_t *vm, vnet_crypto_key_index_t idx,
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