diff options
| author | Edwin Peer | 2017-05-16 02:55:17 +0200 |
|---|---|---|
| committer | David S. Miller | 2017-05-16 18:59:02 +0200 |
| commit | 28063be693c23340a17164a8e4bb347f0d9d1440 (patch) | |
| tree | 667602efe01c3e6554b1263fd29ed18d106a4c85 /drivers/net/ethernet/netronome/nfp/nfp_net.h | |
| parent | nfp: rename l4_offset in struct nfp_net_tx_desc to lso_hdrlen (diff) | |
| download | kernel-qcow2-linux-28063be693c23340a17164a8e4bb347f0d9d1440.tar.gz kernel-qcow2-linux-28063be693c23340a17164a8e4bb347f0d9d1440.tar.xz kernel-qcow2-linux-28063be693c23340a17164a8e4bb347f0d9d1440.zip | |
nfp: support LSO2 capability
Firmware advertising the LSO2 capability exploits driver provided L3 and L4
offsets in order to avoid parsing packet headers in the TX path. The vlan
field in struct nfp_net_tx_desc is repurposed, making TXVLAN a mutually
exclusive configuration to LSO2.
Signed-off-by: Edwin Peer <edwin.peer@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.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 | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h index 6bad11e5b845..c6b7141dc50d 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h @@ -155,8 +155,13 @@ struct nfp_net_tx_desc { __le16 mss; /* MSS to be used for LSO */ u8 lso_hdrlen; /* LSO, TCP payload offset */ u8 flags; /* TX Flags, see @PCIE_DESC_TX_* */ - - __le16 vlan; /* VLAN tag to add if indicated */ + union { + struct { + u8 l3_offset; /* L3 header offset */ + u8 l4_offset; /* L4 header offset */ + }; + __le16 vlan; /* VLAN tag to add if indicated */ + }; __le16 data_len; /* Length of frame + meta data */ } __packed; __le32 vals[4]; |