diff options
| author | Uwe Kleine-König <uwe@kleine-koenig.org> | 2016-11-22 16:47:11 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-11-24 11:55:43 -0500 |
| commit | e22e996b72d47c7bf5bb6b17071b2e9d3db462d4 (patch) | |
| tree | 6e3a0b92aba2431cbeb9ee108933e430177baaee /include/trace | |
| parent | b9116823189e85ccf3843c7d3ee3a361af0c3eb6 (diff) | |
net/phy: add trace events for mdio accesses
Make it possible to generate trace events for mdio read and write accesses.
Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/mdio.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/trace/events/mdio.h b/include/trace/events/mdio.h new file mode 100644 index 000000000000..00d85f5f54e4 --- /dev/null +++ b/include/trace/events/mdio.h @@ -0,0 +1,42 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM mdio + +#if !defined(_TRACE_MDIO_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_MDIO_H + +#include <linux/tracepoint.h> + +TRACE_EVENT_CONDITION(mdio_access, + + TP_PROTO(struct mii_bus *bus, char read, + u8 addr, unsigned regnum, u16 val, int err), + + TP_ARGS(bus, read, addr, regnum, val, err), + + TP_CONDITION(err >= 0), + + TP_STRUCT__entry( + __array(char, busid, MII_BUS_ID_SIZE) + __field(char, read) + __field(u8, addr) + __field(u16, val) + __field(unsigned, regnum) + ), + + TP_fast_assign( + strncpy(__entry->busid, bus->id, MII_BUS_ID_SIZE); + __entry->read = read; + __entry->addr = addr; + __entry->regnum = regnum; + __entry->val = val; + ), + + TP_printk("%s %-5s phy:0x%02hhx reg:0x%02x val:0x%04hx", + __entry->busid, __entry->read ? "read" : "write", + __entry->addr, __entry->regnum, __entry->val) +); + +#endif /* if !defined(_TRACE_MDIO_H) || defined(TRACE_HEADER_MULTI_READ) */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |