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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e22e996b72
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>
43 lines
1009 B
C
43 lines
1009 B
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM mdio
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#if !defined(_TRACE_MDIO_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_MDIO_H
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#include <linux/tracepoint.h>
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TRACE_EVENT_CONDITION(mdio_access,
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TP_PROTO(struct mii_bus *bus, char read,
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u8 addr, unsigned regnum, u16 val, int err),
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TP_ARGS(bus, read, addr, regnum, val, err),
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TP_CONDITION(err >= 0),
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TP_STRUCT__entry(
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__array(char, busid, MII_BUS_ID_SIZE)
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__field(char, read)
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__field(u8, addr)
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__field(u16, val)
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__field(unsigned, regnum)
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),
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TP_fast_assign(
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strncpy(__entry->busid, bus->id, MII_BUS_ID_SIZE);
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__entry->read = read;
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__entry->addr = addr;
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__entry->regnum = regnum;
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__entry->val = val;
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),
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TP_printk("%s %-5s phy:0x%02hhx reg:0x%02x val:0x%04hx",
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__entry->busid, __entry->read ? "read" : "write",
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__entry->addr, __entry->regnum, __entry->val)
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);
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#endif /* if !defined(_TRACE_MDIO_H) || defined(TRACE_HEADER_MULTI_READ) */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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