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| author | Xiaoliang Yang <xiaoliang.yang_1@nxp.com> | 2020-10-02 14:02:23 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-10-03 00:40:30 +0200 |
| commit | 75944fda1dfe836fdd406bef6cb3cc8a80f7af83 (patch) | |
| tree | b5eeaea64af17ddfa20b332090453a2de8f32253 /drivers/net/ethernet/mscc/ocelot_vcap.h | |
| parent | net: mscc: ocelot: create TCAM skeleton from tc filter chains (diff) | |
| download | linux-75944fda1dfe836fdd406bef6cb3cc8a80f7af83.tar.xz linux-75944fda1dfe836fdd406bef6cb3cc8a80f7af83.zip | |
net: mscc: ocelot: offload ingress skbedit and vlan actions to VCAP IS1
VCAP IS1 is a VCAP module which can filter on the most common L2/L3/L4
Ethernet keys, and modify the results of the basic QoS classification
and VLAN classification based on those flow keys.
There are 3 VCAP IS1 lookups, mapped over chains 10000, 11000 and 12000.
Currently the driver is hardcoded to use IS1_ACTION_TYPE_NORMAL half
keys.
Note that the VLAN_MANGLE has been omitted for now. In hardware, the
VCAP_IS1_ACT_VID_REPLACE_ENA field replaces the classified VLAN
(metadata associated with the frame) and not the VLAN from the header
itself. There are currently some issues which need to be addressed when
operating in standalone, or in bridge with vlan_filtering=0 modes,
because in those cases the switch ports have VLAN awareness disabled,
and changing the classified VLAN to anything other than the pvid causes
the packets to be dropped. Another issue is that on egress, we expect
port tagging to push the classified VLAN, but port tagging is disabled
in the modes mentioned above, so although the classified VLAN is
replaced, it is not visible in the packet transmitted by the switch.
Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mscc/ocelot_vcap.h')
| -rw-r--r-- | drivers/net/ethernet/mscc/ocelot_vcap.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_vcap.h b/drivers/net/ethernet/mscc/ocelot_vcap.h index a8e03dbf1083..a71bb4447648 100644 --- a/drivers/net/ethernet/mscc/ocelot_vcap.h +++ b/drivers/net/ethernet/mscc/ocelot_vcap.h @@ -160,6 +160,7 @@ struct ocelot_vcap_key_ipv4 { struct ocelot_vcap_key_ipv6 { struct ocelot_vcap_u8 proto; /* IPv6 protocol */ struct ocelot_vcap_u128 sip; /* IPv6 source (byte 0-7 ignored) */ + struct ocelot_vcap_u128 dip; /* IPv6 destination (byte 0-7 ignored) */ enum ocelot_vcap_bit ttl; /* TTL zero */ struct ocelot_vcap_u8 ds; struct ocelot_vcap_u48 data; /* Not UDP/TCP: IP data */ @@ -185,6 +186,21 @@ enum ocelot_mask_mode { struct ocelot_vcap_action { union { + /* VCAP IS1 */ + struct { + bool vid_replace_ena; + u16 vid; + bool vlan_pop_cnt_ena; + int vlan_pop_cnt; + bool pcp_dei_ena; + u8 pcp; + u8 dei; + bool qos_ena; + u8 qos_val; + u8 pag_override_mask; + u8 pag_val; + }; + /* VCAP IS2 */ struct { bool cpu_copy_ena; @@ -217,6 +233,7 @@ struct ocelot_vcap_filter { int block_id; int goto_target; int lookup; + u8 pag; u16 prio; u32 id; |