From: Suman Ghosh sumang@marvell.com
[ Upstream commit 8278ee2a2646b9acf747317895e47a640ba933c9 ]
Due to hardware limitation, MCAM drop rule with ether_type == 802.1Q and vlan_id == 0 is not supported. Hence rejecting such rules.
Fixes: dce677da57c0 ("octeontx2-pf: Add vlan-etype to ntuple filters") Signed-off-by: Suman Ghosh sumang@marvell.com Link: https://lore.kernel.org/r/20230710103027.2244139-1-sumang@marvell.com Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../ethernet/marvell/octeontx2/nic/otx2_flows.c | 8 ++++++++ .../net/ethernet/marvell/octeontx2/nic/otx2_tc.c | 15 +++++++++++++++ 2 files changed, 23 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c index d0554f6d26731..934c199667b59 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c @@ -867,6 +867,14 @@ static int otx2_prepare_flow_request(struct ethtool_rx_flow_spec *fsp, return -EINVAL;
vlan_etype = be16_to_cpu(fsp->h_ext.vlan_etype); + + /* Drop rule with vlan_etype == 802.1Q + * and vlan_id == 0 is not supported + */ + if (vlan_etype == ETH_P_8021Q && !fsp->m_ext.vlan_tci && + fsp->ring_cookie == RX_CLS_FLOW_DISC) + return -EINVAL; + /* Only ETH_P_8021Q and ETH_P_802AD types supported */ if (vlan_etype != ETH_P_8021Q && vlan_etype != ETH_P_8021AD) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c index 6a01ab1a6e6f3..1aeb18a901b13 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c @@ -579,6 +579,21 @@ static int otx2_tc_prepare_flow(struct otx2_nic *nic, struct otx2_tc_flow *node, return -EOPNOTSUPP; }
+ if (!match.mask->vlan_id) { + struct flow_action_entry *act; + int i; + + flow_action_for_each(i, act, &rule->action) { + if (act->id == FLOW_ACTION_DROP) { + netdev_err(nic->netdev, + "vlan tpid 0x%x with vlan_id %d is not supported for DROP rule.\n", + ntohs(match.key->vlan_tpid), + match.key->vlan_id); + return -EOPNOTSUPP; + } + } + } + if (match.mask->vlan_id || match.mask->vlan_dei || match.mask->vlan_priority) {