mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 08:14:15 +08:00
2c92ca849f
With the rework of how the __string() handles dynamic strings where it
saves off the source string in field in the helper structure[1], the
assignment of that value to the trace event field is stored in the helper
value and does not need to be passed in again.
This means that with:
__string(field, mystring)
Which use to be assigned with __assign_str(field, mystring), no longer
needs the second parameter and it is unused. With this, __assign_str()
will now only get a single parameter.
There's over 700 users of __assign_str() and because coccinelle does not
handle the TRACE_EVENT() macro I ended up using the following sed script:
git grep -l __assign_str | while read a ; do
sed -e 's/\(__assign_str([^,]*[^ ,]\) *,[^;]*/\1)/' $a > /tmp/test-file;
mv /tmp/test-file $a;
done
I then searched for __assign_str() that did not end with ';' as those
were multi line assignments that the sed script above would fail to catch.
Note, the same updates will need to be done for:
__assign_str_len()
__assign_rel_str()
__assign_rel_str_len()
I tested this with both an allmodconfig and an allyesconfig (build only for both).
[1] https://lore.kernel.org/linux-trace-kernel/20240222211442.634192653@goodmis.org/
Link: https://lore.kernel.org/linux-trace-kernel/20240516133454.681ba6a0@rorschach.local.home
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Christian König <christian.koenig@amd.com> for the amdgpu parts.
Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> #for
Acked-by: Rafael J. Wysocki <rafael@kernel.org> # for thermal
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Darrick J. Wong <djwong@kernel.org> # xfs
Tested-by: Guenter Roeck <linux@roeck-us.net>
428 lines
10 KiB
C
428 lines
10 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#undef TRACE_SYSTEM
|
|
#define TRACE_SYSTEM xdp
|
|
|
|
#if !defined(_TRACE_XDP_H) || defined(TRACE_HEADER_MULTI_READ)
|
|
#define _TRACE_XDP_H
|
|
|
|
#include <linux/netdevice.h>
|
|
#include <linux/filter.h>
|
|
#include <linux/tracepoint.h>
|
|
#include <linux/bpf.h>
|
|
#include <net/xdp.h>
|
|
|
|
#define __XDP_ACT_MAP(FN) \
|
|
FN(ABORTED) \
|
|
FN(DROP) \
|
|
FN(PASS) \
|
|
FN(TX) \
|
|
FN(REDIRECT)
|
|
|
|
#define __XDP_ACT_TP_FN(x) \
|
|
TRACE_DEFINE_ENUM(XDP_##x);
|
|
#define __XDP_ACT_SYM_FN(x) \
|
|
{ XDP_##x, #x },
|
|
#define __XDP_ACT_SYM_TAB \
|
|
__XDP_ACT_MAP(__XDP_ACT_SYM_FN) { -1, NULL }
|
|
__XDP_ACT_MAP(__XDP_ACT_TP_FN)
|
|
|
|
TRACE_EVENT(xdp_exception,
|
|
|
|
TP_PROTO(const struct net_device *dev,
|
|
const struct bpf_prog *xdp, u32 act),
|
|
|
|
TP_ARGS(dev, xdp, act),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(int, prog_id)
|
|
__field(u32, act)
|
|
__field(int, ifindex)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->prog_id = xdp->aux->id;
|
|
__entry->act = act;
|
|
__entry->ifindex = dev->ifindex;
|
|
),
|
|
|
|
TP_printk("prog_id=%d action=%s ifindex=%d",
|
|
__entry->prog_id,
|
|
__print_symbolic(__entry->act, __XDP_ACT_SYM_TAB),
|
|
__entry->ifindex)
|
|
);
|
|
|
|
TRACE_EVENT(xdp_bulk_tx,
|
|
|
|
TP_PROTO(const struct net_device *dev,
|
|
int sent, int drops, int err),
|
|
|
|
TP_ARGS(dev, sent, drops, err),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(int, ifindex)
|
|
__field(u32, act)
|
|
__field(int, drops)
|
|
__field(int, sent)
|
|
__field(int, err)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->ifindex = dev->ifindex;
|
|
__entry->act = XDP_TX;
|
|
__entry->drops = drops;
|
|
__entry->sent = sent;
|
|
__entry->err = err;
|
|
),
|
|
|
|
TP_printk("ifindex=%d action=%s sent=%d drops=%d err=%d",
|
|
__entry->ifindex,
|
|
__print_symbolic(__entry->act, __XDP_ACT_SYM_TAB),
|
|
__entry->sent, __entry->drops, __entry->err)
|
|
);
|
|
|
|
#ifndef __DEVMAP_OBJ_TYPE
|
|
#define __DEVMAP_OBJ_TYPE
|
|
struct _bpf_dtab_netdev {
|
|
struct net_device *dev;
|
|
};
|
|
#endif /* __DEVMAP_OBJ_TYPE */
|
|
|
|
DECLARE_EVENT_CLASS(xdp_redirect_template,
|
|
|
|
TP_PROTO(const struct net_device *dev,
|
|
const struct bpf_prog *xdp,
|
|
const void *tgt, int err,
|
|
enum bpf_map_type map_type,
|
|
u32 map_id, u32 index),
|
|
|
|
TP_ARGS(dev, xdp, tgt, err, map_type, map_id, index),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(int, prog_id)
|
|
__field(u32, act)
|
|
__field(int, ifindex)
|
|
__field(int, err)
|
|
__field(int, to_ifindex)
|
|
__field(u32, map_id)
|
|
__field(int, map_index)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
u32 ifindex = 0, map_index = index;
|
|
|
|
if (map_type == BPF_MAP_TYPE_DEVMAP || map_type == BPF_MAP_TYPE_DEVMAP_HASH) {
|
|
/* Just leave to_ifindex to 0 if do broadcast redirect,
|
|
* as tgt will be NULL.
|
|
*/
|
|
if (tgt)
|
|
ifindex = ((struct _bpf_dtab_netdev *)tgt)->dev->ifindex;
|
|
} else if (map_type == BPF_MAP_TYPE_UNSPEC && map_id == INT_MAX) {
|
|
ifindex = index;
|
|
map_index = 0;
|
|
}
|
|
|
|
__entry->prog_id = xdp->aux->id;
|
|
__entry->act = XDP_REDIRECT;
|
|
__entry->ifindex = dev->ifindex;
|
|
__entry->err = err;
|
|
__entry->to_ifindex = ifindex;
|
|
__entry->map_id = map_id;
|
|
__entry->map_index = map_index;
|
|
),
|
|
|
|
TP_printk("prog_id=%d action=%s ifindex=%d to_ifindex=%d err=%d"
|
|
" map_id=%d map_index=%d",
|
|
__entry->prog_id,
|
|
__print_symbolic(__entry->act, __XDP_ACT_SYM_TAB),
|
|
__entry->ifindex, __entry->to_ifindex,
|
|
__entry->err, __entry->map_id, __entry->map_index)
|
|
);
|
|
|
|
DEFINE_EVENT(xdp_redirect_template, xdp_redirect,
|
|
TP_PROTO(const struct net_device *dev,
|
|
const struct bpf_prog *xdp,
|
|
const void *tgt, int err,
|
|
enum bpf_map_type map_type,
|
|
u32 map_id, u32 index),
|
|
TP_ARGS(dev, xdp, tgt, err, map_type, map_id, index)
|
|
);
|
|
|
|
DEFINE_EVENT(xdp_redirect_template, xdp_redirect_err,
|
|
TP_PROTO(const struct net_device *dev,
|
|
const struct bpf_prog *xdp,
|
|
const void *tgt, int err,
|
|
enum bpf_map_type map_type,
|
|
u32 map_id, u32 index),
|
|
TP_ARGS(dev, xdp, tgt, err, map_type, map_id, index)
|
|
);
|
|
|
|
#define _trace_xdp_redirect(dev, xdp, to) \
|
|
trace_xdp_redirect(dev, xdp, NULL, 0, BPF_MAP_TYPE_UNSPEC, INT_MAX, to)
|
|
|
|
#define _trace_xdp_redirect_err(dev, xdp, to, err) \
|
|
trace_xdp_redirect_err(dev, xdp, NULL, err, BPF_MAP_TYPE_UNSPEC, INT_MAX, to)
|
|
|
|
#define _trace_xdp_redirect_map(dev, xdp, to, map_type, map_id, index) \
|
|
trace_xdp_redirect(dev, xdp, to, 0, map_type, map_id, index)
|
|
|
|
#define _trace_xdp_redirect_map_err(dev, xdp, to, map_type, map_id, index, err) \
|
|
trace_xdp_redirect_err(dev, xdp, to, err, map_type, map_id, index)
|
|
|
|
/* not used anymore, but kept around so as not to break old programs */
|
|
DEFINE_EVENT(xdp_redirect_template, xdp_redirect_map,
|
|
TP_PROTO(const struct net_device *dev,
|
|
const struct bpf_prog *xdp,
|
|
const void *tgt, int err,
|
|
enum bpf_map_type map_type,
|
|
u32 map_id, u32 index),
|
|
TP_ARGS(dev, xdp, tgt, err, map_type, map_id, index)
|
|
);
|
|
|
|
DEFINE_EVENT(xdp_redirect_template, xdp_redirect_map_err,
|
|
TP_PROTO(const struct net_device *dev,
|
|
const struct bpf_prog *xdp,
|
|
const void *tgt, int err,
|
|
enum bpf_map_type map_type,
|
|
u32 map_id, u32 index),
|
|
TP_ARGS(dev, xdp, tgt, err, map_type, map_id, index)
|
|
);
|
|
|
|
TRACE_EVENT(xdp_cpumap_kthread,
|
|
|
|
TP_PROTO(int map_id, unsigned int processed, unsigned int drops,
|
|
int sched, struct xdp_cpumap_stats *xdp_stats),
|
|
|
|
TP_ARGS(map_id, processed, drops, sched, xdp_stats),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(int, map_id)
|
|
__field(u32, act)
|
|
__field(int, cpu)
|
|
__field(unsigned int, drops)
|
|
__field(unsigned int, processed)
|
|
__field(int, sched)
|
|
__field(unsigned int, xdp_pass)
|
|
__field(unsigned int, xdp_drop)
|
|
__field(unsigned int, xdp_redirect)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->map_id = map_id;
|
|
__entry->act = XDP_REDIRECT;
|
|
__entry->cpu = smp_processor_id();
|
|
__entry->drops = drops;
|
|
__entry->processed = processed;
|
|
__entry->sched = sched;
|
|
__entry->xdp_pass = xdp_stats->pass;
|
|
__entry->xdp_drop = xdp_stats->drop;
|
|
__entry->xdp_redirect = xdp_stats->redirect;
|
|
),
|
|
|
|
TP_printk("kthread"
|
|
" cpu=%d map_id=%d action=%s"
|
|
" processed=%u drops=%u"
|
|
" sched=%d"
|
|
" xdp_pass=%u xdp_drop=%u xdp_redirect=%u",
|
|
__entry->cpu, __entry->map_id,
|
|
__print_symbolic(__entry->act, __XDP_ACT_SYM_TAB),
|
|
__entry->processed, __entry->drops,
|
|
__entry->sched,
|
|
__entry->xdp_pass, __entry->xdp_drop, __entry->xdp_redirect)
|
|
);
|
|
|
|
TRACE_EVENT(xdp_cpumap_enqueue,
|
|
|
|
TP_PROTO(int map_id, unsigned int processed, unsigned int drops,
|
|
int to_cpu),
|
|
|
|
TP_ARGS(map_id, processed, drops, to_cpu),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(int, map_id)
|
|
__field(u32, act)
|
|
__field(int, cpu)
|
|
__field(unsigned int, drops)
|
|
__field(unsigned int, processed)
|
|
__field(int, to_cpu)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->map_id = map_id;
|
|
__entry->act = XDP_REDIRECT;
|
|
__entry->cpu = smp_processor_id();
|
|
__entry->drops = drops;
|
|
__entry->processed = processed;
|
|
__entry->to_cpu = to_cpu;
|
|
),
|
|
|
|
TP_printk("enqueue"
|
|
" cpu=%d map_id=%d action=%s"
|
|
" processed=%u drops=%u"
|
|
" to_cpu=%d",
|
|
__entry->cpu, __entry->map_id,
|
|
__print_symbolic(__entry->act, __XDP_ACT_SYM_TAB),
|
|
__entry->processed, __entry->drops,
|
|
__entry->to_cpu)
|
|
);
|
|
|
|
TRACE_EVENT(xdp_devmap_xmit,
|
|
|
|
TP_PROTO(const struct net_device *from_dev,
|
|
const struct net_device *to_dev,
|
|
int sent, int drops, int err),
|
|
|
|
TP_ARGS(from_dev, to_dev, sent, drops, err),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(int, from_ifindex)
|
|
__field(u32, act)
|
|
__field(int, to_ifindex)
|
|
__field(int, drops)
|
|
__field(int, sent)
|
|
__field(int, err)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->from_ifindex = from_dev->ifindex;
|
|
__entry->act = XDP_REDIRECT;
|
|
__entry->to_ifindex = to_dev->ifindex;
|
|
__entry->drops = drops;
|
|
__entry->sent = sent;
|
|
__entry->err = err;
|
|
),
|
|
|
|
TP_printk("ndo_xdp_xmit"
|
|
" from_ifindex=%d to_ifindex=%d action=%s"
|
|
" sent=%d drops=%d"
|
|
" err=%d",
|
|
__entry->from_ifindex, __entry->to_ifindex,
|
|
__print_symbolic(__entry->act, __XDP_ACT_SYM_TAB),
|
|
__entry->sent, __entry->drops,
|
|
__entry->err)
|
|
);
|
|
|
|
/* Expect users already include <net/xdp.h>, but not xdp_priv.h */
|
|
#include <net/xdp_priv.h>
|
|
|
|
#define __MEM_TYPE_MAP(FN) \
|
|
FN(PAGE_SHARED) \
|
|
FN(PAGE_ORDER0) \
|
|
FN(PAGE_POOL) \
|
|
FN(XSK_BUFF_POOL)
|
|
|
|
#define __MEM_TYPE_TP_FN(x) \
|
|
TRACE_DEFINE_ENUM(MEM_TYPE_##x);
|
|
#define __MEM_TYPE_SYM_FN(x) \
|
|
{ MEM_TYPE_##x, #x },
|
|
#define __MEM_TYPE_SYM_TAB \
|
|
__MEM_TYPE_MAP(__MEM_TYPE_SYM_FN) { -1, 0 }
|
|
__MEM_TYPE_MAP(__MEM_TYPE_TP_FN)
|
|
|
|
TRACE_EVENT(mem_disconnect,
|
|
|
|
TP_PROTO(const struct xdp_mem_allocator *xa),
|
|
|
|
TP_ARGS(xa),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(const struct xdp_mem_allocator *, xa)
|
|
__field(u32, mem_id)
|
|
__field(u32, mem_type)
|
|
__field(const void *, allocator)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->xa = xa;
|
|
__entry->mem_id = xa->mem.id;
|
|
__entry->mem_type = xa->mem.type;
|
|
__entry->allocator = xa->allocator;
|
|
),
|
|
|
|
TP_printk("mem_id=%d mem_type=%s allocator=%p",
|
|
__entry->mem_id,
|
|
__print_symbolic(__entry->mem_type, __MEM_TYPE_SYM_TAB),
|
|
__entry->allocator
|
|
)
|
|
);
|
|
|
|
TRACE_EVENT(mem_connect,
|
|
|
|
TP_PROTO(const struct xdp_mem_allocator *xa,
|
|
const struct xdp_rxq_info *rxq),
|
|
|
|
TP_ARGS(xa, rxq),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(const struct xdp_mem_allocator *, xa)
|
|
__field(u32, mem_id)
|
|
__field(u32, mem_type)
|
|
__field(const void *, allocator)
|
|
__field(const struct xdp_rxq_info *, rxq)
|
|
__field(int, ifindex)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->xa = xa;
|
|
__entry->mem_id = xa->mem.id;
|
|
__entry->mem_type = xa->mem.type;
|
|
__entry->allocator = xa->allocator;
|
|
__entry->rxq = rxq;
|
|
__entry->ifindex = rxq->dev->ifindex;
|
|
),
|
|
|
|
TP_printk("mem_id=%d mem_type=%s allocator=%p"
|
|
" ifindex=%d",
|
|
__entry->mem_id,
|
|
__print_symbolic(__entry->mem_type, __MEM_TYPE_SYM_TAB),
|
|
__entry->allocator,
|
|
__entry->ifindex
|
|
)
|
|
);
|
|
|
|
TRACE_EVENT(mem_return_failed,
|
|
|
|
TP_PROTO(const struct xdp_mem_info *mem,
|
|
const struct page *page),
|
|
|
|
TP_ARGS(mem, page),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(const struct page *, page)
|
|
__field(u32, mem_id)
|
|
__field(u32, mem_type)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->page = page;
|
|
__entry->mem_id = mem->id;
|
|
__entry->mem_type = mem->type;
|
|
),
|
|
|
|
TP_printk("mem_id=%d mem_type=%s page=%p",
|
|
__entry->mem_id,
|
|
__print_symbolic(__entry->mem_type, __MEM_TYPE_SYM_TAB),
|
|
__entry->page
|
|
)
|
|
);
|
|
|
|
TRACE_EVENT(bpf_xdp_link_attach_failed,
|
|
|
|
TP_PROTO(const char *msg),
|
|
|
|
TP_ARGS(msg),
|
|
|
|
TP_STRUCT__entry(
|
|
__string(msg, msg)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__assign_str(msg);
|
|
),
|
|
|
|
TP_printk("errmsg=%s", __get_str(msg))
|
|
);
|
|
|
|
#endif /* _TRACE_XDP_H */
|
|
|
|
#include <trace/define_trace.h>
|