diff options
Diffstat (limited to 'net/xdp/xsk_queue.h')
-rw-r--r-- | net/xdp/xsk_queue.h | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/net/xdp/xsk_queue.h b/net/xdp/xsk_queue.h index 9151aef7dbca..16bf15864788 100644 --- a/net/xdp/xsk_queue.h +++ b/net/xdp/xsk_queue.h @@ -32,8 +32,6 @@ struct xdp_umem_ring { }; struct xsk_queue { - u64 chunk_mask; - u64 umem_size; u32 ring_mask; u32 nentries; u32 cached_prod; @@ -106,90 +104,6 @@ struct xsk_queue { /* Functions that read and validate content from consumer rings. */ -static inline bool xskq_cons_crosses_non_contig_pg(struct xdp_umem *umem, - u64 addr, - u64 length) -{ - bool cross_pg = (addr & (PAGE_SIZE - 1)) + length > PAGE_SIZE; - bool next_pg_contig = - (unsigned long)umem->pages[(addr >> PAGE_SHIFT)].addr & - XSK_NEXT_PG_CONTIG_MASK; - - return cross_pg && !next_pg_contig; -} - -static inline bool xskq_cons_is_valid_unaligned(struct xsk_queue *q, - u64 addr, - u64 length, - struct xdp_umem *umem) -{ - u64 base_addr = xsk_umem_extract_addr(addr); - - addr = xsk_umem_add_offset_to_addr(addr); - if (base_addr >= q->umem_size || addr >= q->umem_size || - xskq_cons_crosses_non_contig_pg(umem, addr, length)) { - q->invalid_descs++; - return false; - } - - return true; -} - -static inline bool xskq_cons_is_valid_addr(struct xsk_queue *q, u64 addr) -{ - if (addr >= q->umem_size) { - q->invalid_descs++; - return false; - } - - return true; -} - -static inline bool xskq_cons_read_addr(struct xsk_queue *q, u64 *addr, - struct xdp_umem *umem) -{ - struct xdp_umem_ring *ring = (struct xdp_umem_ring *)q->ring; - - while (q->cached_cons != q->cached_prod) { - u32 idx = q->cached_cons & q->ring_mask; - - *addr = ring->desc[idx] & q->chunk_mask; - - if (umem->flags & XDP_UMEM_UNALIGNED_CHUNK_FLAG) { - if (xskq_cons_is_valid_unaligned(q, *addr, - umem->chunk_size_nohr, - umem)) - return true; - goto out; - } - - if (xskq_cons_is_valid_addr(q, *addr)) - return true; - -out: - q->cached_cons++; - } - - return false; -} - -static inline bool xskq_cons_read_addr_aligned(struct xsk_queue *q, u64 *addr) -{ - struct xdp_umem_ring *ring = (struct xdp_umem_ring *)q->ring; - - while (q->cached_cons != q->cached_prod) { - u32 idx = q->cached_cons & q->ring_mask; - - *addr = ring->desc[idx]; - if (xskq_cons_is_valid_addr(q, *addr)) - return true; - - q->cached_cons++; - } - - return false; -} - static inline bool xskq_cons_read_addr_unchecked(struct xsk_queue *q, u64 *addr) { struct xdp_umem_ring *ring = (struct xdp_umem_ring *)q->ring; @@ -267,21 +181,6 @@ static inline bool xskq_cons_has_entries(struct xsk_queue *q, u32 cnt) return entries >= cnt; } -static inline bool xskq_cons_peek_addr(struct xsk_queue *q, u64 *addr, - struct xdp_umem *umem) -{ - if (q->cached_prod == q->cached_cons) - xskq_cons_get_entries(q); - return xskq_cons_read_addr(q, addr, umem); -} - -static inline bool xskq_cons_peek_addr_aligned(struct xsk_queue *q, u64 *addr) -{ - if (q->cached_prod == q->cached_cons) - xskq_cons_get_entries(q); - return xskq_cons_read_addr_aligned(q, addr); -} - static inline bool xskq_cons_peek_addr_unchecked(struct xsk_queue *q, u64 *addr) { if (q->cached_prod == q->cached_cons) @@ -410,11 +309,7 @@ static inline u64 xskq_nb_invalid_descs(struct xsk_queue *q) return q ? q->invalid_descs : 0; } -void xskq_set_umem(struct xsk_queue *q, u64 umem_size, u64 chunk_mask); struct xsk_queue *xskq_create(u32 nentries, bool umem_queue); void xskq_destroy(struct xsk_queue *q_ops); -/* Executed by the core when the entire UMEM gets freed */ -void xsk_reuseq_destroy(struct xdp_umem *umem); - #endif /* _LINUX_XSK_QUEUE_H */ |