qed: VF XDP support
The final addition on the qed front -
- VFs would now require their PFs to provide multiple CIDs
- Based on the availability of connections from PF, determine whether
XDP is feasible and share it with qede via dev_info.
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/qlogic/qed/qed_l2.c b/drivers/net/ethernet/qlogic/qed/qed_l2.c
index cffa8e7..cb8b05d 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_l2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_l2.c
@@ -2119,15 +2119,26 @@ static int qed_fill_eth_dev_info(struct qed_dev *cdev,
ether_addr_copy(info->port_mac,
cdev->hwfns[0].hw_info.hw_mac_addr);
- } else {
- qed_vf_get_num_rxqs(QED_LEADING_HWFN(cdev), &info->num_queues);
- if (cdev->num_hwfns > 1) {
- u8 queues = 0;
- qed_vf_get_num_rxqs(&cdev->hwfns[1], &queues);
+ info->xdp_supported = true;
+ } else {
+ u16 total_cids = 0;
+
+ /* Determine queues & XDP support */
+ for_each_hwfn(cdev, i) {
+ struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
+ u8 queues, cids;
+
+ qed_vf_get_num_cids(p_hwfn, &cids);
+ qed_vf_get_num_rxqs(p_hwfn, &queues);
info->num_queues += queues;
+ total_cids += cids;
}
+ /* Enable VF XDP in case PF guarntees sufficient connections */
+ if (total_cids >= info->num_queues * 3)
+ info->xdp_supported = true;
+
qed_vf_get_num_vlan_filters(&cdev->hwfns[0],
(u8 *)&info->num_vlan_filters);
qed_vf_get_num_mac_filters(&cdev->hwfns[0],