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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: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Anjali Singhai Jain 2015-04-07 19:45:31 -04:00 committed by Jeff Kirsher
parent 2619ef475f
commit e7c8c60bc5
1 changed files with 26 additions and 0 deletions
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26
drivers/net/ethernet/intel/i40e/i40e_ethtool.c
View File

@ -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