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| author |   Vlad Buslov <vladbu@mellanox.com> | 2019-06-25 22:33:15 +0300 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2019-08-21 15:55:18 -0700 |
| commit | c786fe596bede275f887f212eebee74490043b84 (patch) | |
| tree | 5e4e2257892babc7c881b2289edca537a7d78052 /drivers/net/ethernet/mellanox/mlx5/core | |
| parent | net/mlx5e: Add tc flower tracepoints (diff) | |
| download | linux-dev-c786fe596bede275f887f212eebee74490043b84.tar.xz linux-dev-c786fe596bede275f887f212eebee74490043b84.zip | |
net/mlx5e: Add trace point for neigh used value update
Allow tracing result of neigh used value update task that is executed
periodically on workqueue.
Usage example:
># cd /sys/kernel/debug/tracing
># echo mlx5:mlx5e_tc_update_neigh_used_value >> set_event
># cat trace
...
kworker/u48:4-8806 [009] ...1 55117.882428: mlx5e_tc_update_neigh_used_value:
netdev: ens1f0 IPv4: 1.1.1.10 IPv6: ::ffff:1.1.1.10 neigh_used=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/mlx5/core')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h | 31 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 2 |
2 files changed, 33 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h index a362100fe6d3..d4e6cfaaade3 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h @@ -10,6 +10,7 @@ #include <linux/tracepoint.h> #include <linux/trace_seq.h> #include <net/flow_offload.h> +#include "en_rep.h" #define __parse_action(ids, num) parse_action(p, ids, num) @@ -73,6 +74,36 @@ TRACE_EVENT(mlx5e_stats_flower, ) ); +TRACE_EVENT(mlx5e_tc_update_neigh_used_value, + TP_PROTO(const struct mlx5e_neigh_hash_entry *nhe, bool neigh_used), + TP_ARGS(nhe, neigh_used), + TP_STRUCT__entry(__string(devname, nhe->m_neigh.dev->name) + __array(u8, v4, 4) + __array(u8, v6, 16) + __field(bool, neigh_used) + ), + 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_used = neigh_used; + + 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 IPv4: %pI4 IPv6: %pI6c neigh_used=%d\n", + __get_str(devname), __entry->v4, __entry->v6, + __entry->neigh_used + ) +); + #endif /* _MLX5_TC_TP_ */ /* This part must be outside protection */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index c40cca08c8cc..5581a8045ede 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -1536,6 +1536,8 @@ void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe) } } + trace_mlx5e_tc_update_neigh_used_value(nhe, neigh_used); + if (neigh_used) { nhe->reported_lastuse = jiffies; |