diff options
Diffstat (limited to 'net/xdp/xsk_queue.h')
| -rw-r--r-- | net/xdp/xsk_queue.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/xdp/xsk_queue.h b/net/xdp/xsk_queue.h index b936c46b1e16..4a9663aa7afe 100644 --- a/net/xdp/xsk_queue.h +++ b/net/xdp/xsk_queue.h @@ -307,6 +307,12 @@ static inline bool xskq_cons_is_full(struct xsk_queue *q) q->nentries; } +static inline u32 xskq_cons_present_entries(struct xsk_queue *q) +{ + /* No barriers needed since data is not accessed */ + return READ_ONCE(q->ring->producer) - READ_ONCE(q->ring->consumer); +} + /* Functions for producers */ static inline u32 xskq_prod_nb_free(struct xsk_queue *q, u32 max) |