mirror of https://gitee.com/openkylin/linux.git
5e5add172e
In dual_mac mode packets arrived on one port should not be forwarded by switch hw to another port. Only Linux Host can forward packets between ports. The below test case (reported in [1]) shows that packet arrived on one port can be leaked to anoter (reproducible with dual port evms): - connect port 1 (eth0) to linux Host 0 and run tcpdump or Wireshark - connect port 2 (eth1) to linux Host 1 with vlan 1 configured - ping <IPx> from Host 1 through vlan 1 interface. ARP packets will be seen on Host 0. Issue happens because dual_mac mode is implemnted using two vlans: 1 (Port 1+Port 0) and 2 (Port 2+Port 0), so there are vlan records created for for each vlan. By default, the ALE will find valid vlan record in its table when vlan 1 tagged packet arrived on Port 2 and so forwards packet to all ports which are vlan 1 members (like Port. To avoid such behaviorr the ALE VLAN ID Ingress Check need to be enabled for each external CPSW port (ALE_PORTCTLn.VID_INGRESS_CHECK) so ALE will drop ingress packets if Rx port is not VLAN member. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| cpmac.c | ||
| cpsw-common.c | ||
| cpsw-phy-sel.c | ||
| cpsw.c | ||
| cpsw.h | ||
| cpsw_ale.c | ||
| cpsw_ale.h | ||
| cpts.c | ||
| cpts.h | ||
| davinci_cpdma.c | ||
| davinci_cpdma.h | ||
| davinci_emac.c | ||
| davinci_mdio.c | ||
| netcp.h | ||
| netcp_core.c | ||
| netcp_ethss.c | ||
| netcp_sgmii.c | ||
| netcp_xgbepcsr.c | ||
| tlan.c | ||
| tlan.h | ||