diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/bpf/main.c | 20 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_app.h | 13 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_repr.c | 8 |
4 files changed, 46 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.c b/drivers/net/ethernet/netronome/nfp/bpf/main.c index 4b63167906ca..978086580ca0 100644 --- a/drivers/net/ethernet/netronome/nfp/bpf/main.c +++ b/drivers/net/ethernet/netronome/nfp/bpf/main.c @@ -195,6 +195,24 @@ static bool nfp_bpf_tc_busy(struct nfp_app *app, struct nfp_net *nn) } static int +nfp_bpf_change_mtu(struct nfp_app *app, struct net_device *netdev, int new_mtu) +{ + struct nfp_net *nn = netdev_priv(netdev); + unsigned int max_mtu; + + if (~nn->dp.ctrl & NFP_NET_CFG_CTRL_BPF) + return 0; + + max_mtu = nn_readb(nn, NFP_NET_CFG_BPF_INL_MTU) * 64 - 32; + if (new_mtu > max_mtu) { + nn_info(nn, "BPF offload active, MTU over %u not supported\n", + max_mtu); + return -EBUSY; + } + return 0; +} + +static int nfp_bpf_parse_cap_adjust_head(struct nfp_app_bpf *bpf, void __iomem *value, u32 length) { @@ -311,6 +329,8 @@ const struct nfp_app_type app_bpf = { .init = nfp_bpf_init, .clean = nfp_bpf_clean, + .change_mtu = nfp_bpf_change_mtu, + .extra_cap = nfp_bpf_extra_cap, .vnic_alloc = nfp_bpf_vnic_alloc, diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.h b/drivers/net/ethernet/netronome/nfp/nfp_app.h index 3af1943a8521..e6b59c28c4ca 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_app.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_app.h @@ -82,6 +82,8 @@ extern const struct nfp_app_type app_flower; * @repr_clean: representor about to be unregistered * @repr_open: representor netdev open callback * @repr_stop: representor netdev stop callback + * @change_mtu: MTU change on a netdev has been requested (veto-only, change + * is not guaranteed to be committed) * @start: start application logic * @stop: stop application logic * @ctrl_msg_rx: control message handler @@ -120,6 +122,9 @@ struct nfp_app_type { int (*repr_open)(struct nfp_app *app, struct nfp_repr *repr); int (*repr_stop)(struct nfp_app *app, struct nfp_repr *repr); + int (*change_mtu)(struct nfp_app *app, struct net_device *netdev, + int new_mtu); + int (*start)(struct nfp_app *app); void (*stop)(struct nfp_app *app); @@ -242,6 +247,14 @@ nfp_app_repr_clean(struct nfp_app *app, struct net_device *netdev) app->type->repr_clean(app, netdev); } +static inline int +nfp_app_change_mtu(struct nfp_app *app, struct net_device *netdev, int new_mtu) +{ + if (!app || !app->type->change_mtu) + return 0; + return app->type->change_mtu(app, netdev, new_mtu); +} + static inline int nfp_app_start(struct nfp_app *app, struct nfp_net *ctrl) { app->ctrl = ctrl; diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 104d6c520a52..33cbb9b35e68 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -3049,6 +3049,11 @@ static int nfp_net_change_mtu(struct net_device *netdev, int new_mtu) { struct nfp_net *nn = netdev_priv(netdev); struct nfp_net_dp *dp; + int err; + + err = nfp_app_change_mtu(nn->app, netdev, new_mtu); + if (err) + return err; dp = nfp_net_clone_dp(nn); if (!dp) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c index f50aa119570a..317f87cc3cc6 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c @@ -186,6 +186,13 @@ nfp_repr_get_offload_stats(int attr_id, const struct net_device *dev, return -EINVAL; } +static int nfp_repr_change_mtu(struct net_device *netdev, int new_mtu) +{ + struct nfp_repr *repr = netdev_priv(netdev); + + return nfp_app_change_mtu(repr->app, netdev, new_mtu); +} + static netdev_tx_t nfp_repr_xmit(struct sk_buff *skb, struct net_device *netdev) { struct nfp_repr *repr = netdev_priv(netdev); @@ -240,6 +247,7 @@ const struct net_device_ops nfp_repr_netdev_ops = { .ndo_open = nfp_repr_open, .ndo_stop = nfp_repr_stop, .ndo_start_xmit = nfp_repr_xmit, + .ndo_change_mtu = nfp_repr_change_mtu, .ndo_get_stats64 = nfp_repr_get_stats64, .ndo_has_offload_stats = nfp_repr_has_offload_stats, .ndo_get_offload_stats = nfp_repr_get_offload_stats, |