diff options
| author |   Petr Machata <petrm@mellanox.com> | 2018-02-27 14:53:42 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-02-27 14:46:27 -0500 |
| commit | 3546b03ffcdb0a70b0d7302d7e139f096a613e9f (patch) | |
| tree | 911300d9c924dd2352d74fb1be891d0a252f6aea /drivers/net | |
| parent | mlxsw: span: Remove span_entry by span_id (diff) | |
| download | linux-dev-3546b03ffcdb0a70b0d7302d7e139f096a613e9f.tar.xz linux-dev-3546b03ffcdb0a70b0d7302d7e139f096a613e9f.zip | |
mlxsw: spectrum_span: Initialize span_entry.id eagerly
It is known statically ahead of time which SPAN entry will have which
ID. Just initialize it eagerly in mlxsw_sp_span_init(), don't wait until
the entry is actually created. This simplifies some code in
mlxsw_sp_span_entry_create()
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c index 9e596b064582..5c87e6dfc5a1 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c @@ -51,8 +51,12 @@ int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp) if (!mlxsw_sp->span.entries) return -ENOMEM; - for (i = 0; i < mlxsw_sp->span.entries_count; i++) - INIT_LIST_HEAD(&mlxsw_sp->span.entries[i].bound_ports_list); + for (i = 0; i < mlxsw_sp->span.entries_count; i++) { + struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i]; + + INIT_LIST_HEAD(&curr->bound_ports_list); + curr->id = i; + } return 0; } @@ -72,34 +76,30 @@ void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp) static struct mlxsw_sp_span_entry * mlxsw_sp_span_entry_create(struct mlxsw_sp_port *port) { + struct mlxsw_sp_span_entry *span_entry = NULL; struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp; - struct mlxsw_sp_span_entry *span_entry; char mpat_pl[MLXSW_REG_MPAT_LEN]; u8 local_port = port->local_port; - int index; int i; int err; /* find a free entry to use */ - index = -1; for (i = 0; i < mlxsw_sp->span.entries_count; i++) { if (!mlxsw_sp->span.entries[i].ref_count) { - index = i; span_entry = &mlxsw_sp->span.entries[i]; break; } } - if (index < 0) + if (!span_entry) return NULL; /* create a new port analayzer entry for local_port */ - mlxsw_reg_mpat_pack(mpat_pl, index, local_port, true, + mlxsw_reg_mpat_pack(mpat_pl, span_entry->id, local_port, true, MLXSW_REG_MPAT_SPAN_TYPE_LOCAL_ETH); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpat), mpat_pl); if (err) return NULL; - span_entry->id = index; span_entry->ref_count = 1; span_entry->local_port = local_port; return span_entry; |