diff options
| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2022-04-12 13:29:29 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-04-13 12:42:39 +0100 |
| commit | 127c9e970f59edaaaa7a7134e55752314c9691da (patch) | |
| tree | 2d562741f1de2f3af94fd83f992999870d91aef7 /drivers/net/ethernet/ti/cpsw_new.c | |
| parent | 5ec836be11b3f7dfbdeaee8dd86137f134df6f6f (diff) | |
net: ethernet: ti: cpsw_new: enable bc/mc storm prevention support
This patch enables support for ingress broadcast(BC)/multicast(MC) packets
rate limiting in TI CPSW switchdev driver (the corresponding ALE support
was added in previous patch) by implementing HW offload for simple
tc-flower with policer action with matches on dst_mac:
- ff:ff:ff:ff:ff:ff/ff:ff:ff:ff:ff:ff has to be used for BC packets rate
limiting (exact match)
- 01:00:00:00:00:00/01:00:00:00:00:00 fixed value has to be used for MC
packets rate limiting
The CPSW supports MC/BC packets rate limiting in packets/sec and affects
all ingress MC/BC packets and serves as BC/MC storm prevention feature.
Examples:
- BC rate limit to 1000pps:
tc qdisc add dev eth0 clsact
tc filter add dev eth0 ingress flower skip_sw dst_mac ff:ff:ff:ff:ff:ff \
action police pkts_rate 1000 pkts_burst 1 drop
- MC rate limit to 20000pps:
tc qdisc add dev eth0 clsact
tc filter add dev eth0 ingress flower skip_sw dst_mac 01:00:00:00:00:00/01:00:00:00:00:00 \
action police rate pkts_rate 10000 pkts_burst 1 drop
pkts_burst - not used.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ti/cpsw_new.c')
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw_new.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/ti/cpsw_new.c b/drivers/net/ethernet/ti/cpsw_new.c index 394145d06d54..dfa0a9cf9d89 100644 --- a/drivers/net/ethernet/ti/cpsw_new.c +++ b/drivers/net/ethernet/ti/cpsw_new.c @@ -498,6 +498,8 @@ static void cpsw_restore(struct cpsw_priv *priv) /* restore CBS offload */ cpsw_cbs_resume(&cpsw->slaves[priv->emac_port - 1], priv); + + cpsw_qos_clsflower_resume(priv); } static void cpsw_init_stp_ale_entry(struct cpsw_common *cpsw) @@ -1407,7 +1409,7 @@ static int cpsw_create_ports(struct cpsw_common *cpsw) cpsw->slaves[i].ndev = ndev; ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | - NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_NETNS_LOCAL; + NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_NETNS_LOCAL | NETIF_F_HW_TC; ndev->netdev_ops = &cpsw_netdev_ops; ndev->ethtool_ops = &cpsw_ethtool_ops; |