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Commit e7c8c60b authored by Anjali Singhai Jain's avatar Anjali Singhai Jain Committed by Jeff Kirsher
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i40e: Add support to program FDir SB rules for VF from PF through ethtool 



With this patch we can now add Flow director Sideband rules for a VF from
it's PF. Here is an example on how it can be done when VF id = 5 and
queue = 2:

"ethtool -N ethx flow-type udp4 src-ip x.x.x.x dst-ip y.y.y.y src-port p1 dst-port p2 action 2 user-def 5"

User-def specifies VF id and action specifies queue.

Change-ID: Ib37d6dff3823a4d85caffde638473891c38c2b89
Signed-off-by: default avatarAnjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: default avatarJim Young <james.m.young@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 2619ef47

drivers/net/ethernet/intel/i40e/i40e_ethtool.c

+26 −0
Original line number Diff line number Diff line
@@ -1914,6 +1914,16 @@ static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 
	else

		fsp->ring_cookie = rule->q_index;



	if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {

		struct i40e_vsi *vsi;



		vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);

		if (vsi && vsi->type == I40E_VSI_SRIOV) {

			fsp->h_ext.data[1] = htonl(vsi->vf_id);

			fsp->m_ext.data[1] = htonl(0x1);

		}

	}



	return 0;

}
@@ -2207,6 +2217,7 @@ static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 
	struct i40e_fdir_filter *input;

	struct i40e_pf *pf;

	int ret = -EINVAL;

	u16 vf_id;



	if (!vsi)

		return -EINVAL;
@@ -2267,7 +2278,22 @@ static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 
	input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;

	input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;



	if (ntohl(fsp->m_ext.data[1])) {

		if (ntohl(fsp->h_ext.data[1]) >= pf->num_alloc_vfs) {

			netif_info(pf, drv, vsi->netdev, "Invalid VF id\n");

			goto free_input;

		}

		vf_id = ntohl(fsp->h_ext.data[1]);

		/* Find vsi id from vf id and override dest vsi */

		input->dest_vsi = pf->vf[vf_id].lan_vsi_id;

		if (input->q_index >= pf->vf[vf_id].num_queue_pairs) {

			netif_info(pf, drv, vsi->netdev, "Invalid queue id\n");

			goto free_input;

		}

	}



	ret = i40e_add_del_fdir(vsi, input, true);

free_input:

	if (ret)

		kfree(input);

	else