A few useful tracepoints developing VRF driver.
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| 1 | #undef TRACE_SYSTEM | ||
| 2 | #define TRACE_SYSTEM fib | ||
| 3 | |||
| 4 | #if !defined(_TRACE_FIB_H) || defined(TRACE_HEADER_MULTI_READ) | ||
| 5 | #define _TRACE_FIB_H | ||
| 6 | |||
| 7 | #include <linux/skbuff.h> | ||
| 8 | #include <linux/netdevice.h> | ||
| 9 | #include <net/ip_fib.h> | ||
| 10 | #include <linux/tracepoint.h> | ||
| 11 | |||
| 12 | TRACE_EVENT(fib_table_lookup, | ||
| 13 | |||
| 14 | TP_PROTO(int tb_id, const struct flowi4 *flp), | ||
| 15 | |||
| 16 | TP_ARGS(tb_id, flp), | ||
| 17 | |||
| 18 | TP_STRUCT__entry( | ||
| 19 | __field( int, tb_id ) | ||
| 20 | __field( int, oif ) | ||
| 21 | __field( int, iif ) | ||
| 22 | __field( __u8, tos ) | ||
| 23 | __field( __u8, scope ) | ||
| 24 | __field( __u8, flags ) | ||
| 25 | __array( __u8, src, 4 ) | ||
| 26 | __array( __u8, dst, 4 ) | ||
| 27 | ), | ||
| 28 | |||
| 29 | TP_fast_assign( | ||
| 30 | __be32 *p32; | ||
| 31 | |||
| 32 | __entry->tb_id = tb_id; | ||
| 33 | __entry->oif = flp->flowi4_oif; | ||
| 34 | __entry->iif = flp->flowi4_iif; | ||
| 35 | __entry->tos = flp->flowi4_tos; | ||
| 36 | __entry->scope = flp->flowi4_scope; | ||
| 37 | __entry->flags = flp->flowi4_flags; | ||
| 38 | |||
| 39 | p32 = (__be32 *) __entry->src; | ||
| 40 | *p32 = flp->saddr; | ||
| 41 | |||
| 42 | p32 = (__be32 *) __entry->dst; | ||
| 43 | *p32 = flp->daddr; | ||
| 44 | ), | ||
| 45 | |||
| 46 | TP_printk("table %d oif %d iif %d src %pI4 dst %pI4 tos %d scope %d flags %x", | ||
| 47 | __entry->tb_id, __entry->oif, __entry->iif, | ||
| 48 | __entry->src, __entry->dst, __entry->tos, __entry->scope, | ||
| 49 | __entry->flags) | ||
| 50 | ); | ||
| 51 | |||
| 52 | TRACE_EVENT(fib_table_lookup_nh, | ||
| 53 | |||
| 54 | TP_PROTO(const struct fib_nh *nh), | ||
| 55 | |||
| 56 | TP_ARGS(nh), | ||
| 57 | |||
| 58 | TP_STRUCT__entry( | ||
| 59 | __string( name, nh->nh_dev->name) | ||
| 60 | __field( int, oif ) | ||
| 61 | __array( __u8, src, 4 ) | ||
| 62 | ), | ||
| 63 | |||
| 64 | TP_fast_assign( | ||
| 65 | __be32 *p32 = (__be32 *) __entry->src; | ||
| 66 | |||
| 67 | __assign_str(name, nh->nh_dev ? nh->nh_dev->name : "not set"); | ||
| 68 | __entry->oif = nh->nh_oif; | ||
| 69 | *p32 = nh->nh_saddr; | ||
| 70 | ), | ||
| 71 | |||
| 72 | TP_printk("nexthop dev %s oif %d src %pI4", | ||
| 73 | __get_str(name), __entry->oif, __entry->src) | ||
| 74 | ); | ||
| 75 | |||
| 76 | TRACE_EVENT(fib_validate_source, | ||
| 77 | |||
| 78 | TP_PROTO(const struct net_device *dev, const struct flowi4 *flp), | ||
| 79 | |||
| 80 | TP_ARGS(dev, flp), | ||
| 81 | |||
| 82 | TP_STRUCT__entry( | ||
| 83 | __string( name, dev->name ) | ||
| 84 | __field( int, oif ) | ||
| 85 | __field( int, iif ) | ||
| 86 | __array( __u8, src, 4 ) | ||
| 87 | __array( __u8, dst, 4 ) | ||
| 88 | ), | ||
| 89 | |||
| 90 | TP_fast_assign( | ||
| 91 | __be32 *p32; | ||
| 92 | |||
| 93 | __assign_str(name, dev ? dev->name : "not set"); | ||
| 94 | __entry->oif = flp->flowi4_oif; | ||
| 95 | __entry->iif = flp->flowi4_iif; | ||
| 96 | |||
| 97 | p32 = (__be32 *) __entry->src; | ||
| 98 | *p32 = flp->saddr; | ||
| 99 | |||
| 100 | p32 = (__be32 *) __entry->dst; | ||
| 101 | *p32 = flp->daddr; | ||
| 102 | ), | ||
| 103 | |||
| 104 | TP_printk("dev %s oif %d iif %d src %pI4 dst %pI4", | ||
| 105 | __get_str(name), __entry->oif, __entry->iif, | ||
| 106 | __entry->src, __entry->dst) | ||
| 107 | ); | ||
| 108 | #endif /* _TRACE_FIB_H */ | ||
| 109 | |||
| 110 | /* This part must be outside protection */ | ||
| 111 | #include <trace/define_trace.h> | ||