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, 24 struct xsk_buff_pool *xsk_pool, 25 int budget); 26 int ice_xsk_wakeup(struct net_device *netdev, u32 queue_id, u32 flags); 27 bool ice_alloc_rx_bufs_zc(struct ice_rx_ring *rx_ring, 28 struct xsk_buff_pool *xsk_pool, u16 count); 29 bool ice_xsk_any_rx_ring_ena(struct ice_vsi *vsi); 30 void ice_xsk_clean_rx_ring(struct ice_rx_ring *rx_ring); 31 void ice_xsk_clean_xdp_ring(struct ice_tx_ring *xdp_ring); 32 bool ice_xmit_zc(struct ice_tx_ring *xdp_ring, struct xsk_buff_pool *xsk_pool); 33 int ice_realloc_zc_buf(struct ice_vsi *vsi, bool zc); 34 #else 35 static inline bool ice_xmit_zc(struct ice_tx_ring __always_unused *xdp_ring, 36 struct xsk_buff_pool __always_unused *xsk_pool) 37 { 38 return false; 39 } 40 41 static inline int 42 ice_xsk_pool_setup(struct ice_vsi __always_unused *vsi, 43 struct xsk_buff_pool __always_unused *pool, 44 u16 __always_unused qid) 45 { 46 return -EOPNOTSUPP; 47 } 48 49 static inline int 50 ice_clean_rx_irq_zc(struct ice_rx_ring __always_unused *rx_ring, 51 struct xsk_buff_pool __always_unused *xsk_pool, 52 int __always_unused budget) 53 { 54 return 0; 55 } 56 57 static inline bool 58 ice_alloc_rx_bufs_zc(struct ice_rx_ring __always_unused *rx_ring, 59 struct xsk_buff_pool __always_unused *xsk_pool, 60 u16 __always_unused count) 61 { 62 return false; 63 } 64 65 static inline bool ice_xsk_any_rx_ring_ena(struct ice_vsi __always_unused *vsi) 66 { 67 return false; 68 } 69 70 static inline int 71 ice_xsk_wakeup(struct net_device __always_unused *netdev, 72 u32 __always_unused queue_id, u32 __always_unused flags) 73 { 74 return -EOPNOTSUPP; 75 } 76 77 static inline void ice_xsk_clean_rx_ring(struct ice_rx_ring *rx_ring) { } 78 static inline void ice_xsk_clean_xdp_ring(struct ice_tx_ring *xdp_ring) { } 79 80 static inline int 81 ice_realloc_zc_buf(struct ice_vsi __always_unused *vsi, 82 bool __always_unused zc) 83 { 84 return 0; 85 } 86 #endif /* CONFIG_XDP_SOCKETS */ 87 #endif /* !_ICE_XSK_H_ */ 88