leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ice: Disallow VF VLAN opcodes if VLAN offloads disabled

Browse Source 
Currently if the host disables VLAN offloads on the VF by
not setting the VIRTCHNL_VF_OFFLOAD_VLAN capability bit
we will still honor VF VLAN configuration messages over
VIRTCHNL. These messages (i.e. enable/disable VLAN stripping
and VLAN filtering) should be blocked when the feature
is not supported. Fix that by adding a helper function to
determine if the VF is allowed to do VLAN operations based
on the host's VF configuration.

Also, mirror the VF communicated capabilities in the host's
VF configuration.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Brett Creeley 2019-11-08 06:23:19 -08:00 committed by Jeff Kirsher
parent 9164f761c9
commit d4bc4e2d6b
1 changed files with 29 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
View File

@ -1686,6 +1686,9 @@ static int ice_vc_get_vf_res_msg(struct ice_vf *vf, u8 *msg)
ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
vf->dflt_lan_addr.addr);
/* match guest capabilities */
vf->driver_caps = vfres->vf_cap_flags;
set_bit(ICE_VF_STATE_ACTIVE, vf->vf_states);
err:
@ -2653,6 +2656,17 @@ error_set_pvid:
return ret;
}
/**
* ice_vf_vlan_offload_ena - determine if capabilities support VLAN offloads
* @caps: VF driver negotiated capabilities
*
* Return true if VIRTCHNL_VF_OFFLOAD_VLAN capability is set, else return false
*/
static bool ice_vf_vlan_offload_ena(u32 caps)
{
return !!(caps & VIRTCHNL_VF_OFFLOAD_VLAN);
}
/**
* ice_vc_process_vlan_msg
* @vf: pointer to the VF info
@ -2679,6 +2693,11 @@ static int ice_vc_process_vlan_msg(struct ice_vf *vf, u8 *msg, bool add_v)
goto error_param;
}
if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (!ice_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
@ -2864,6 +2883,11 @@ static int ice_vc_ena_vlan_stripping(struct ice_vf *vf)
goto error_param;
}
if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
vsi = pf->vsi[vf->lan_vsi_idx];
if (ice_vsi_manage_vlan_stripping(vsi, true))
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
@ -2890,6 +2914,11 @@ static int ice_vc_dis_vlan_stripping(struct ice_vf *vf)
goto error_param;
}
if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
vsi = pf->vsi[vf->lan_vsi_idx];
if (!vsi) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;