1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2019, Intel Corporation. */
3 
4 #ifndef _ICE_XSK_H_
5 #define _ICE_XSK_H_
6 #include "ice_txrx.h"
7 #include "ice.h"
8 
9 struct ice_vsi;
10 
11 #ifdef CONFIG_XDP_SOCKETS
12 int ice_xsk_umem_setup(struct ice_vsi *vsi, struct xdp_umem *umem, u16 qid);
13 void ice_zca_free(struct zero_copy_allocator *zca, unsigned long handle);
14 int ice_clean_rx_irq_zc(struct ice_ring *rx_ring, int budget);
15 bool ice_clean_tx_irq_zc(struct ice_ring *xdp_ring, int budget);
16 int ice_xsk_wakeup(struct net_device *netdev, u32 queue_id, u32 flags);
17 bool ice_alloc_rx_bufs_slow_zc(struct ice_ring *rx_ring, u16 count);
18 bool ice_xsk_any_rx_ring_ena(struct ice_vsi *vsi);
19 void ice_xsk_clean_rx_ring(struct ice_ring *rx_ring);
20 void ice_xsk_clean_xdp_ring(struct ice_ring *xdp_ring);
21 #else
22 static inline int
23 ice_xsk_umem_setup(struct ice_vsi __always_unused *vsi,
24 		   struct xdp_umem __always_unused *umem,
25 		   u16 __always_unused qid)
26 {
27 	return -EOPNOTSUPP;
28 }
29 
30 static inline void
31 ice_zca_free(struct zero_copy_allocator __always_unused *zca,
32 	     unsigned long __always_unused handle)
33 {
34 }
35 
36 static inline int
37 ice_clean_rx_irq_zc(struct ice_ring __always_unused *rx_ring,
38 		    int __always_unused budget)
39 {
40 	return 0;
41 }
42 
43 static inline bool
44 ice_clean_tx_irq_zc(struct ice_ring __always_unused *xdp_ring,
45 		    int __always_unused budget)
46 {
47 	return false;
48 }
49 
50 static inline bool
51 ice_alloc_rx_bufs_slow_zc(struct ice_ring __always_unused *rx_ring,
52 			  u16 __always_unused count)
53 {
54 	return false;
55 }
56 
57 static inline bool ice_xsk_any_rx_ring_ena(struct ice_vsi __always_unused *vsi)
58 {
59 	return false;
60 }
61 
62 static inline int
63 ice_xsk_wakeup(struct net_device __always_unused *netdev,
64 	       u32 __always_unused queue_id, u32 __always_unused flags)
65 {
66 	return -EOPNOTSUPP;
67 }
68 
69 #define ice_xsk_clean_rx_ring(rx_ring) do {} while (0)
70 #define ice_xsk_clean_xdp_ring(xdp_ring) do {} while (0)
71 #endif /* CONFIG_XDP_SOCKETS */
72 #endif /* !_ICE_XSK_H_ */
73