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authorPetr Machata <petrm@mellanox.com>2018-02-27 14:53:45 +0100
committerDavid S. Miller <davem@davemloft.net>2018-02-27 14:46:27 -0500
commit169b5d95c15e01e08e1665bd8ceaff9bf8331c33 (patch)
tree7f3d639812d0cb52aed9143e2e3069633dd76614 /drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h
parentmlxsw: spectrum: Keep mirror netdev in mlxsw_sp_span_entry (diff)
downloadlinux-dev-169b5d95c15e01e08e1665bd8ceaff9bf8331c33.tar.xz
linux-dev-169b5d95c15e01e08e1665bd8ceaff9bf8331c33.zip
mlxsw: spectrum_span: Generalize SPAN support
To support mirroring to different device types, the functions that partake in configuring the port analyzer need to be extended to admit non-trivial SPAN types. Create a structure where all details of SPAN configuration are kept, struct mlxsw_sp_span_parms. Also create struct mlxsw_sp_span_entry_ops to keep per-SPAN-type operations. Instantiate the latter once for MLXSW_REG_MPAT_SPAN_TYPE_LOCAL_ETH, and once for a suite of NOP callbacks used for invalidated SPAN entry. Put the formet as a sole member of a new array mlxsw_sp_span_entry_types, where all known SPAN types are kept. Introduce a new function, mlxsw_sp_span_entry_ops(), to look up the right ops suite given a netdevice. Change mlxsw_sp_span_mirror_add() to use both parms and ops structures. Change mlxsw_sp_span_entry_get() and mlxsw_sp_span_entry_create() to take these as arguments. Modify mlxsw_sp_span_entry_configure() and mlxsw_sp_span_entry_deconfigure() to dispatch to ops. 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 '')
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h
index 44b307c59d0e..9390b05a7919 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h
@@ -50,13 +50,30 @@ struct mlxsw_sp_span_inspected_port {
u8 local_port;
};
+struct mlxsw_sp_span_parms {
+ struct mlxsw_sp_port *dest_port; /* NULL for unoffloaded SPAN. */
+};
+
+struct mlxsw_sp_span_entry_ops;
+
struct mlxsw_sp_span_entry {
const struct net_device *to_dev;
+ const struct mlxsw_sp_span_entry_ops *ops;
+ struct mlxsw_sp_span_parms parms;
struct list_head bound_ports_list;
int ref_count;
int id;
};
+struct mlxsw_sp_span_entry_ops {
+ bool (*can_handle)(const struct net_device *to_dev);
+ int (*parms)(const struct net_device *to_dev,
+ struct mlxsw_sp_span_parms *sparmsp);
+ int (*configure)(struct mlxsw_sp_span_entry *span_entry,
+ struct mlxsw_sp_span_parms sparms);
+ void (*deconfigure)(struct mlxsw_sp_span_entry *span_entry);
+};
+
int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp);
void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp);