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ice: Add switch rules to handle LLDP packets

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Add call to configure dropping egress LLDP packets in ice_vsi_setup
and remove the rule in ice_vsi_release.

Add calls to add/remove rule to route LLDP packets to default VSI when
FW LLDP engine is disabled/enabled and remove rule if applied during
ice_vsi_release.

In the function ice_add_eth_mac(), there is a line that hard codes the
filter info flag to TX. This is incorrect as this flag will be set by
the calling function that built the list of filters to add. So remove
the hard coded value.

This patch also contains a fix to stop treating the DCBx state of
"Not Started" as an error state that kicks DCB in SW mode. This will
address having non-cabled interfaces automatically go into SW mode
with the FW engine running.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@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:
Dave Ertman 2019-04-16 10:34:55 -07:00 • committed by Jeff Kirsher
parent 092a33d403
commit 2e0e62285c
5 changed files with 89 additions and 6 deletions
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11
drivers/net/ethernet/intel/ice/ice_ethtool.c
View file

@ -1205,6 +1205,7 @@ static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
if (!test_bit(ICE_FLAG_ENABLE_FW_LLDP, pf->flags)) {
enum ice_status status;
/* Disable FW LLDP engine */
status = ice_aq_cfg_lldp_mib_change(&pf->hw, false,
NULL);
/* If unregistering for LLDP events fails, this is
@ -1229,6 +1230,11 @@ static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
status = ice_init_pf_dcb(pf, true);
if (status)
dev_warn(&pf->pdev->dev, "Fail to init DCB\n");
/* Forward LLDP packets to default VSI so that they
* are passed up the stack
*/
ice_cfg_sw_lldp(vsi, false, true);
} else {
enum ice_status status;
bool dcbx_agent_status;
@ -1262,6 +1268,11 @@ static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
status = ice_init_pf_dcb(pf, true);
if (status)
dev_dbg(&pf->pdev->dev, "Fail to init DCB\n");
/* Remove rule to direct LLDP packets to default VSI.
* The FW LLDP engine will now be consuming them.
*/
ice_cfg_sw_lldp(vsi, false, false);
}
}
clear_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);