static int mvneta_change_mtu(struct net_device *dev, int mtu)
{
struct mvneta_port *pp = netdev_priv(dev);
+ struct bpf_prog *prog = pp->xdp_prog;
int ret;
if (!IS_ALIGNED(MVNETA_RX_PKT_SIZE(mtu), 8)) {
mtu = ALIGN(MVNETA_RX_PKT_SIZE(mtu), 8);
}
- if (pp->xdp_prog && mtu > MVNETA_MAX_RX_BUF_SIZE) {
- netdev_info(dev, "Illegal MTU value %d for XDP mode\n", mtu);
+ if (prog && !prog->aux->xdp_has_frags &&
+ mtu > MVNETA_MAX_RX_BUF_SIZE) {
+ netdev_info(dev, "Illegal MTU %d for XDP prog without frags\n",
+ mtu);
+
return -EINVAL;
}
struct mvneta_port *pp = netdev_priv(dev);
struct bpf_prog *old_prog;
- if (prog && dev->mtu > MVNETA_MAX_RX_BUF_SIZE) {
- NL_SET_ERR_MSG_MOD(extack, "MTU too large for XDP");
+ if (prog && !prog->aux->xdp_has_frags &&
+ dev->mtu > MVNETA_MAX_RX_BUF_SIZE) {
+ NL_SET_ERR_MSG_MOD(extack, "prog does not support XDP frags");
return -EOPNOTSUPP;
}