diff options
| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2018-02-07 20:55:25 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-02-08 10:01:27 -0500 |
| commit | 0d592e52fbbda26155b686dd93878cf774a3ab0e (patch) | |
| tree | bd5d0a7658d8bf238a2fabe13f1b44049f810e1c /drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h | |
| parent | d692403e5cf8008f31f5664a6f3ce3e65d54f458 (diff) | |
| download | talos-op-linux-0d592e52fbbda26155b686dd93878cf774a3ab0e.tar.gz talos-op-linux-0d592e52fbbda26155b686dd93878cf774a3ab0e.zip | |
nfp: limit the number of TSO segments
Most FWs limit the number of TSO segments a frame can produce
to 64. This is for fairness and efficiency (of FW datapath)
reasons. If a frame with larger number of segments is submitted
the FW will drop it.
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_ctrl.h')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h b/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h index eeecef2caac6..4499a7333078 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h @@ -59,9 +59,12 @@ #define NFP_NET_RX_OFFSET 32 /** - * Maximum header size supported for LSO frames + * LSO parameters + * %NFP_NET_LSO_MAX_HDR_SZ: Maximum header size supported for LSO frames + * %NFP_NET_LSO_MAX_SEGS: Maximum number of segments LSO frame can produce */ #define NFP_NET_LSO_MAX_HDR_SZ 255 +#define NFP_NET_LSO_MAX_SEGS 64 /** * Prepend field types |
