mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 09:40:58 +07:00
28b1520ebf
Introduce XDP_REDIRECT support for eBPF programs attached to cpumap entries. This patch has been tested on Marvell ESPRESSObin using a modified version of xdp_redirect_cpu sample in order to attach a XDP program to CPUMAP entries to perform a redirect on the mvneta interface. In particular the following scenario has been tested: rq (cpu0) --> mvneta - XDP_REDIRECT (cpu0) --> CPUMAP - XDP_REDIRECT (cpu1) --> mvneta $./xdp_redirect_cpu -p xdp_cpu_map0 -d eth0 -c 1 -e xdp_redirect \ -f xdp_redirect_kern.o -m tx_port -r eth0 tx: 285.2 Kpps rx: 285.2 Kpps Attaching a simple XDP program on eth0 to perform XDP_TX gives comparable results: tx: 288.4 Kpps rx: 288.4 Kpps Co-developed-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Link: https://lore.kernel.org/bpf/2cf8373a731867af302b00c4ff16c122630c4980.1594734381.git.lorenzo@kernel.org
398 lines
9.4 KiB
C
398 lines
9.4 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>
|
|
|
|
#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 */
|
|
|
|
#define devmap_ifindex(tgt, map) \
|
|
(((map->map_type == BPF_MAP_TYPE_DEVMAP || \
|
|
map->map_type == BPF_MAP_TYPE_DEVMAP_HASH)) ? \
|
|
((struct _bpf_dtab_netdev *)tgt)->dev->ifindex : 0)
|
|
|
|
DECLARE_EVENT_CLASS(xdp_redirect_template,
|
|
|
|
TP_PROTO(const struct net_device *dev,
|
|
const struct bpf_prog *xdp,
|
|
const void *tgt, int err,
|
|
const struct bpf_map *map, u32 index),
|
|
|
|
TP_ARGS(dev, xdp, tgt, err, map, 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(
|
|
__entry->prog_id = xdp->aux->id;
|
|
__entry->act = XDP_REDIRECT;
|
|
__entry->ifindex = dev->ifindex;
|
|
__entry->err = err;
|
|
__entry->to_ifindex = map ? devmap_ifindex(tgt, map) :
|
|
index;
|
|
__entry->map_id = map ? map->id : 0;
|
|
__entry->map_index = map ? index : 0;
|
|
),
|
|
|
|
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,
|
|
const struct bpf_map *map, u32 index),
|
|
TP_ARGS(dev, xdp, tgt, err, map, 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,
|
|
const struct bpf_map *map, u32 index),
|
|
TP_ARGS(dev, xdp, tgt, err, map, index)
|
|
);
|
|
|
|
#define _trace_xdp_redirect(dev, xdp, to) \
|
|
trace_xdp_redirect(dev, xdp, NULL, 0, NULL, to);
|
|
|
|
#define _trace_xdp_redirect_err(dev, xdp, to, err) \
|
|
trace_xdp_redirect_err(dev, xdp, NULL, err, NULL, to);
|
|
|
|
#define _trace_xdp_redirect_map(dev, xdp, to, map, index) \
|
|
trace_xdp_redirect(dev, xdp, to, 0, map, index);
|
|
|
|
#define _trace_xdp_redirect_map_err(dev, xdp, to, map, index, err) \
|
|
trace_xdp_redirect_err(dev, xdp, to, err, map, 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,
|
|
const struct bpf_map *map, u32 index),
|
|
TP_ARGS(dev, xdp, tgt, err, map, 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,
|
|
const struct bpf_map *map, u32 index),
|
|
TP_ARGS(dev, xdp, tgt, err, map, 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
|
|
)
|
|
);
|
|
|
|
#endif /* _TRACE_XDP_H */
|
|
|
|
#include <trace/define_trace.h>
|