Commit 7de8b691 authored Jul 05, 2022 by Simon Horman Committed by David S. Miller Jul 06, 2022

nfp: enable TSO by default for nfp netdev



We can benefit from TSO when the host CPU is not powerful enough,
so enable it by default now.

Signed-off-by: Yinjun Zhang <yinjun.zhang@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>

parent ccccb493

drivers/net/ethernet/netronome/nfp/nfp_net_common.c

+3 −4

Original line number	Diff line number	Diff line
		@@ -2420,12 +2420,11 @@ static void nfp_net_netdev_init(struct nfp_net *nn)
		if (nfp_app_has_tc(nn->app) && nn->port)
		netdev->hw_features \|= NETIF_F_HW_TC;

		/* Advertise but disable TSO by default.
		* C-Tag strip and S-Tag strip can't be supported simultaneously,
		/* C-Tag strip and S-Tag strip can't be supported simultaneously,
		* so enable C-Tag strip and disable S-Tag strip by default.
		*/
		netdev->features &= ~(NETIF_F_TSO \| NETIF_F_TSO6 \| NETIF_F_HW_VLAN_STAG_RX);
		nn->dp.ctrl &= ~(NFP_NET_CFG_CTRL_LSO_ANY \| NFP_NET_CFG_CTRL_RXQINQ);
		netdev->features &= ~NETIF_F_HW_VLAN_STAG_RX;
		nn->dp.ctrl &= ~NFP_NET_CFG_CTRL_RXQINQ;

		/* Finalise the netdev setup */
		switch (nn->dp.ops->version) {

drivers/net/ethernet/netronome/nfp/nfp_net_repr.c

+2 −3

Original line number	Diff line number	Diff line
		@@ -380,11 +380,10 @@ int nfp_repr_init(struct nfp_app app, struct net_device netdev,

		netdev->features = netdev->hw_features;

		/* Advertise but disable TSO by default.
		* C-Tag strip and S-Tag strip can't be supported simultaneously,
		/* C-Tag strip and S-Tag strip can't be supported simultaneously,
		* so enable C-Tag strip and disable S-Tag strip by default.
		*/
		netdev->features &= ~(NETIF_F_TSO \| NETIF_F_TSO6 \| NETIF_F_HW_VLAN_STAG_RX);
		netdev->features &= ~NETIF_F_HW_VLAN_STAG_RX;
		netif_set_tso_max_segs(netdev, NFP_NET_LSO_MAX_SEGS);

		netdev->priv_flags \|= IFF_NO_QUEUE \| IFF_DISABLE_NETPOLL;