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