1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #undef TRACE_SYSTEM 3 #define TRACE_SYSTEM skb 4 5 #if !defined(_TRACE_SKB_H) || defined(TRACE_HEADER_MULTI_READ) 6 #define _TRACE_SKB_H 7 8 #include <linux/skbuff.h> 9 #include <linux/netdevice.h> 10 #include <linux/tracepoint.h> 11 12 #undef FN 13 #define FN(reason) TRACE_DEFINE_ENUM(SKB_DROP_REASON_##reason); 14 DEFINE_DROP_REASON(FN, FN) 15 16 #undef FN 17 #undef FNe 18 #define FN(reason) { SKB_DROP_REASON_##reason, #reason }, 19 #define FNe(reason) { SKB_DROP_REASON_##reason, #reason } 20 21 /* 22 * Tracepoint for free an sk_buff: 23 */ 24 TRACE_EVENT(kfree_skb, 25 26 TP_PROTO(struct sk_buff *skb, void *location, 27 enum skb_drop_reason reason), 28 29 TP_ARGS(skb, location, reason), 30 31 TP_STRUCT__entry( 32 __field(void *, skbaddr) 33 __field(void *, location) 34 __field(unsigned short, protocol) 35 __field(enum skb_drop_reason, reason) 36 ), 37 38 TP_fast_assign( 39 __entry->skbaddr = skb; 40 __entry->location = location; 41 __entry->protocol = ntohs(skb->protocol); 42 __entry->reason = reason; 43 ), 44 45 TP_printk("skbaddr=%p protocol=%u location=%pS reason: %s", 46 __entry->skbaddr, __entry->protocol, __entry->location, 47 __print_symbolic(__entry->reason, 48 DEFINE_DROP_REASON(FN, FNe))) 49 ); 50 51 #undef FN 52 #undef FNe 53 54 TRACE_EVENT(consume_skb, 55 56 TP_PROTO(struct sk_buff *skb), 57 58 TP_ARGS(skb), 59 60 TP_STRUCT__entry( 61 __field( void *, skbaddr ) 62 ), 63 64 TP_fast_assign( 65 __entry->skbaddr = skb; 66 ), 67 68 TP_printk("skbaddr=%p", __entry->skbaddr) 69 ); 70 71 TRACE_EVENT(skb_copy_datagram_iovec, 72 73 TP_PROTO(const struct sk_buff *skb, int len), 74 75 TP_ARGS(skb, len), 76 77 TP_STRUCT__entry( 78 __field( const void *, skbaddr ) 79 __field( int, len ) 80 ), 81 82 TP_fast_assign( 83 __entry->skbaddr = skb; 84 __entry->len = len; 85 ), 86 87 TP_printk("skbaddr=%p len=%d", __entry->skbaddr, __entry->len) 88 ); 89 90 #endif /* _TRACE_SKB_H */ 91 92 /* This part must be outside protection */ 93 #include <trace/define_trace.h> 94