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Merge branch 'mlxsw-Two-fixes'

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Ido Schimmel says:

====================
mlxsw: Two fixes

This patchset contains two fixes for mlxsw.

Patch #1 from Petr fixes an issue in which DSCP rewrite can occur even
if the egress port was switched to Trust L2 mode where priority mapping
is based on PCP.

Patch #2 fixes a problem where packets can be learned on a non-existing
FID if a tc filter with a redirect action is configured on a bridged
port. The problem and fix are explained in detail in the commit message.

Please consider both patches for 5.2.y
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2019-07-17 15:19:46 -07:00
commit f1bf3e2ab4
4 changed files with 25 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/mellanox/mlxsw/spectrum.h
View File

@ -830,6 +830,7 @@ int mlxsw_sp_setup_tc_prio(struct mlxsw_sp_port *mlxsw_sp_port,
struct tc_prio_qopt_offload *p); struct tc_prio_qopt_offload *p);
/* spectrum_fid.c */ /* spectrum_fid.c */
bool mlxsw_sp_fid_is_dummy(struct mlxsw_sp *mlxsw_sp, u16 fid_index);
bool mlxsw_sp_fid_lag_vid_valid(const struct mlxsw_sp_fid *fid); bool mlxsw_sp_fid_lag_vid_valid(const struct mlxsw_sp_fid *fid);
struct mlxsw_sp_fid *mlxsw_sp_fid_lookup_by_index(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *mlxsw_sp_fid_lookup_by_index(struct mlxsw_sp *mlxsw_sp,
u16 fid_index); u16 fid_index);

16
drivers/net/ethernet/mellanox/mlxsw/spectrum_dcb.c
View File

@ -408,14 +408,6 @@ static int mlxsw_sp_port_dcb_app_update(struct mlxsw_sp_port *mlxsw_sp_port)
have_dscp = mlxsw_sp_port_dcb_app_prio_dscp_map(mlxsw_sp_port, have_dscp = mlxsw_sp_port_dcb_app_prio_dscp_map(mlxsw_sp_port,
&prio_map); &prio_map);
if (!have_dscp) {
err = mlxsw_sp_port_dcb_toggle_trust(mlxsw_sp_port,
MLXSW_REG_QPTS_TRUST_STATE_PCP);
if (err)
netdev_err(mlxsw_sp_port->dev, "Couldn't switch to trust L2\n");
return err;
}
mlxsw_sp_port_dcb_app_dscp_prio_map(mlxsw_sp_port, default_prio, mlxsw_sp_port_dcb_app_dscp_prio_map(mlxsw_sp_port, default_prio,
&dscp_map); &dscp_map);
err = mlxsw_sp_port_dcb_app_update_qpdpm(mlxsw_sp_port, err = mlxsw_sp_port_dcb_app_update_qpdpm(mlxsw_sp_port,
@ -432,6 +424,14 @@ static int mlxsw_sp_port_dcb_app_update(struct mlxsw_sp_port *mlxsw_sp_port)
return err; return err;
} }
if (!have_dscp) {
err = mlxsw_sp_port_dcb_toggle_trust(mlxsw_sp_port,
MLXSW_REG_QPTS_TRUST_STATE_PCP);
if (err)
netdev_err(mlxsw_sp_port->dev, "Couldn't switch to trust L2\n");
return err;
}
err = mlxsw_sp_port_dcb_toggle_trust(mlxsw_sp_port, err = mlxsw_sp_port_dcb_toggle_trust(mlxsw_sp_port,
MLXSW_REG_QPTS_TRUST_STATE_DSCP); MLXSW_REG_QPTS_TRUST_STATE_DSCP);
if (err) { if (err) {

10
drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c
View File

@ -126,6 +126,16 @@ static const int *mlxsw_sp_packet_type_sfgc_types[] = {
[MLXSW_SP_FLOOD_TYPE_MC] = mlxsw_sp_sfgc_mc_packet_types, [MLXSW_SP_FLOOD_TYPE_MC] = mlxsw_sp_sfgc_mc_packet_types,
}; };
bool mlxsw_sp_fid_is_dummy(struct mlxsw_sp *mlxsw_sp, u16 fid_index)
{
enum mlxsw_sp_fid_type fid_type = MLXSW_SP_FID_TYPE_DUMMY;
struct mlxsw_sp_fid_family *fid_family;
fid_family = mlxsw_sp->fid_core->fid_family_arr[fid_type];
return fid_family->start_index == fid_index;
}
bool mlxsw_sp_fid_lag_vid_valid(const struct mlxsw_sp_fid *fid) bool mlxsw_sp_fid_lag_vid_valid(const struct mlxsw_sp_fid *fid)
{ {
return fid->fid_family->lag_vid_valid; return fid->fid_family->lag_vid_valid;

6
drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
View File

@ -2468,6 +2468,9 @@ static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
goto just_remove; goto just_remove;
} }
if (mlxsw_sp_fid_is_dummy(mlxsw_sp, fid))
goto just_remove;
mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid); mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid);
if (!mlxsw_sp_port_vlan) { if (!mlxsw_sp_port_vlan) {
netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n"); netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n");
@ -2527,6 +2530,9 @@ static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
goto just_remove; goto just_remove;
} }
if (mlxsw_sp_fid_is_dummy(mlxsw_sp, fid))
goto just_remove;
mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid); mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid);
if (!mlxsw_sp_port_vlan) { if (!mlxsw_sp_port_vlan) {
netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n"); netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n");