Commit 40b8c454 authored Apr 07, 2017 by Mintz, Yuval Committed by David S. Miller Apr 07, 2017

qede: Prevent VFs from using XDP



Current implementation of VFs is very tight in regard to queue
resources. VFs support for XDP would require quite a bit of additional
infrastructure in qede and qed [sharing of queue-zones between queues,
more VF cids, mapping of the doorbell bar, etc.].

For now, prevent XDP programs from being attached to VFs.

Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 89e1afc4

drivers/net/ethernet/qlogic/qede/qede_filter.c

+5 −0

Original line number	Original line	Diff line number	Diff line
	@@ -537,6 +537,11 @@ int qede_xdp(struct net_device dev, struct netdev_xdp xdp)
	{		{
	struct qede_dev *edev = netdev_priv(dev);		struct qede_dev *edev = netdev_priv(dev);

			if (IS_VF(edev)) {
			DP_NOTICE(edev, "VFs don't support XDP\n");
			return -EOPNOTSUPP;
			}

	switch (xdp->command) {		switch (xdp->command) {
	case XDP_SETUP_PROG:		case XDP_SETUP_PROG:
	return qede_xdp_set(edev, xdp->prog);		return qede_xdp_set(edev, xdp->prog);