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 
8 #define PKTS_PER_BATCH 8
9 
10 #ifdef __clang__
11 #define loop_unrolled_for _Pragma("clang loop unroll_count(8)") for
12 #elif __GNUC__ >= 8
13 #define loop_unrolled_for _Pragma("GCC unroll 8") for
14 #else
15 #define loop_unrolled_for for
16 #endif
17 
18 struct ice_vsi;
19 
20 #ifdef CONFIG_XDP_SOCKETS
21 int ice_xsk_pool_setup(struct ice_vsi *vsi, struct xsk_buff_pool *pool,
22 		       u16 qid);
23 int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget);
24 int ice_xsk_wakeup(struct net_device *netdev, u32 queue_id, u32 flags);
25 bool ice_alloc_rx_bufs_zc(struct ice_rx_ring *rx_ring, u16 count);
26 bool ice_xsk_any_rx_ring_ena(struct ice_vsi *vsi);
27 void ice_xsk_clean_rx_ring(struct ice_rx_ring *rx_ring);
28 void ice_xsk_clean_xdp_ring(struct ice_tx_ring *xdp_ring);
29 bool ice_xmit_zc(struct ice_tx_ring *xdp_ring);
30 int ice_realloc_zc_buf(struct ice_vsi *vsi, bool zc);
31 #else
32 static inline bool ice_xmit_zc(struct ice_tx_ring __always_unused *xdp_ring)
33 {
34 	return false;
35 }
36 
37 static inline int
38 ice_xsk_pool_setup(struct ice_vsi __always_unused *vsi,
39 		   struct xsk_buff_pool __always_unused *pool,
40 		   u16 __always_unused qid)
41 {
42 	return -EOPNOTSUPP;
43 }
44 
45 static inline int
46 ice_clean_rx_irq_zc(struct ice_rx_ring __always_unused *rx_ring,
47 		    int __always_unused budget)
48 {
49 	return 0;
50 }
51 
52 static inline bool
53 ice_alloc_rx_bufs_zc(struct ice_rx_ring __always_unused *rx_ring,
54 		     u16 __always_unused count)
55 {
56 	return false;
57 }
58 
59 static inline bool ice_xsk_any_rx_ring_ena(struct ice_vsi __always_unused *vsi)
60 {
61 	return false;
62 }
63 
64 static inline int
65 ice_xsk_wakeup(struct net_device __always_unused *netdev,
66 	       u32 __always_unused queue_id, u32 __always_unused flags)
67 {
68 	return -EOPNOTSUPP;
69 }
70 
71 static inline void ice_xsk_clean_rx_ring(struct ice_rx_ring *rx_ring) { }
72 static inline void ice_xsk_clean_xdp_ring(struct ice_tx_ring *xdp_ring) { }
73 
74 static inline int
75 ice_realloc_zc_buf(struct ice_vsi __always_unused *vsi,
76 		   bool __always_unused zc)
77 {
78 	return 0;
79 }
80 #endif /* CONFIG_XDP_SOCKETS */
81 #endif /* !_ICE_XSK_H_ */
82