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| author |   Diana Wang <na.wang@corigine.com> | 2022-07-02 09:35:50 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-07-04 10:44:08 +0100 |
| commit | 67d2656b48f108bcf8819f05374c68cfedda3133 (patch) | |
| tree | 08dd80cfbd486594fe4fcafd97d4b7d985dc799a /drivers/net/ethernet/netronome/nfp/nfp_net.h | |
| parent | Merge branch 'smsc95xx-deadlock' (diff) | |
| download | wireguard-linux-67d2656b48f108bcf8819f05374c68cfedda3133.tar.xz wireguard-linux-67d2656b48f108bcf8819f05374c68cfedda3133.zip | |
nfp: support RX VLAN ctag/stag strip
Add support for RX VLAN ctag/stag strip
which may be configured via ethtool.
e.g.
# ethtool -K $DEV rx-vlan-offload on
# ethtool -K $DEV rx-vlan-stag-hw-parse on
Ctag-stripped and stag-stripped cannot be enabled at the same time
because currently the kernel supports only one layer of VLAN stripping.
The NIC supplies VLAN strip information as packet metadata.
The fields of this VLAN metadata are:
* strip flag: 1 for stripped; 0 for unstripped
* tci: VLAN TCI ID
* tpid: 1 for ETH_P_8021AD; 0 for ETH_P_8021Q
Configuration control bits NFP_NET_CFG_CTRL_RXVLAN_V2 and
NFP_NET_CFG_CTRL_RXQINQ are to signal availability of
ctag-strip and stag-strip features of the firmware.
Signed-off-by: Diana Wang <na.wang@corigine.com>
Reviewed-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_net.h')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h index b07cea8e354c..a101ff30a1ae 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h @@ -248,6 +248,8 @@ struct nfp_net_rx_desc { }; #define NFP_NET_META_FIELD_MASK GENMASK(NFP_NET_META_FIELD_SIZE - 1, 0) +#define NFP_NET_VLAN_CTAG 0 +#define NFP_NET_VLAN_STAG 1 struct nfp_meta_parsed { u8 hash_type; @@ -256,6 +258,11 @@ struct nfp_meta_parsed { u32 mark; u32 portid; __wsum csum; + struct { + bool stripped; + u8 tpid; + u16 tci; + } vlan; }; struct nfp_net_rx_hash { |