diff options
| author |   Vlad Buslov <vladbu@mellanox.com> | 2019-06-25 22:40:20 +0300 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2019-08-21 15:55:18 -0700 |
| commit | 5970882a2510e8bffaef518a82ea207798187a93 (patch) | |
| tree | e15858334dae586ce697472ef1a7a3628da45332 /drivers/net/ethernet/mellanox | |
| parent | net/mlx5e: Add trace point for neigh used value update (diff) | |
| download | linux-dev-5970882a2510e8bffaef518a82ea207798187a93.tar.xz linux-dev-5970882a2510e8bffaef518a82ea207798187a93.zip | |
net/mlx5e: Add trace point for neigh update
Allow tracing neigh state during neigh update task that is executed on
workqueue and is scheduled by neigh state change event.
Usage example:
># cd /sys/kernel/debug/tracing
># echo mlx5:mlx5e_rep_neigh_update >> set_event
># cat trace
...
kworker/u48:7-2221 [009] ...1 1475.387435: mlx5e_rep_neigh_update:
netdev: ens1f0 MAC: 24:8a:07:9a:17:9a IPv4: 1.1.1.10 IPv6: ::ffff:1.1.1.10 neigh_connected=1
Added corresponding documentation in
Documentation/networking/device-driver/mellanox/mlx5.rst
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Dmytro Linkin <dmitrolin@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/diag/en_rep_tracepoint.h | 54 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 4 |
2 files changed, 58 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_rep_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_rep_tracepoint.h new file mode 100644 index 000000000000..1177860a2ee4 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_rep_tracepoint.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2019 Mellanox Technologies. */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM mlx5 + +#if !defined(_MLX5_EN_REP_TP_) || defined(TRACE_HEADER_MULTI_READ) +#define _MLX5_EN_REP_TP_ + +#include <linux/tracepoint.h> +#include <linux/trace_seq.h> +#include "en_rep.h" + +TRACE_EVENT(mlx5e_rep_neigh_update, + TP_PROTO(const struct mlx5e_neigh_hash_entry *nhe, const u8 *ha, + bool neigh_connected), + TP_ARGS(nhe, ha, neigh_connected), + TP_STRUCT__entry(__string(devname, nhe->m_neigh.dev->name) + __array(u8, ha, ETH_ALEN) + __array(u8, v4, 4) + __array(u8, v6, 16) + __field(bool, neigh_connected) + ), + TP_fast_assign(const struct mlx5e_neigh *mn = &nhe->m_neigh; + struct in6_addr *pin6; + __be32 *p32; + + __assign_str(devname, mn->dev->name); + __entry->neigh_connected = neigh_connected; + memcpy(__entry->ha, ha, ETH_ALEN); + + p32 = (__be32 *)__entry->v4; + pin6 = (struct in6_addr *)__entry->v6; + if (mn->family == AF_INET) { + *p32 = mn->dst_ip.v4; + ipv6_addr_set_v4mapped(*p32, pin6); + } else if (mn->family == AF_INET6) { + *pin6 = mn->dst_ip.v6; + } + ), + TP_printk("netdev: %s MAC: %pM IPv4: %pI4 IPv6: %pI6c neigh_connected=%d\n", + __get_str(devname), __entry->ha, + __entry->v4, __entry->v6, __entry->neigh_connected + ) +); + +#endif /* _MLX5_EN_REP_TP_ */ + +/* This part must be outside protection */ +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH ./diag +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE en_rep_tracepoint +#include <trace/define_trace.h> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c index 5217f39828a4..3c0d36b2b91c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c @@ -46,6 +46,8 @@ #include "en/tc_tun.h" #include "fs_core.h" #include "lib/port_tun.h" +#define CREATE_TRACE_POINTS +#include "diag/en_rep_tracepoint.h" #define MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE \ max(0x7, MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE) @@ -657,6 +659,8 @@ static void mlx5e_rep_neigh_update(struct work_struct *work) neigh_connected = (nud_state & NUD_VALID) && !dead; + trace_mlx5e_rep_neigh_update(nhe, ha, neigh_connected); + list_for_each_entry(e, &nhe->encap_list, encap_list) { if (!mlx5e_encap_take(e)) continue; |