diff mbox series

octeontx2-pf: Add additional check for MCAM rules.

Message ID 20230703091703.2003373-1-sumang@marvell.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series octeontx2-pf: Add additional check for MCAM rules. | expand

Checks

Context Check Description
netdev/series_format warning Single patches do not need cover letters; Target tree name not specified in the subject
netdev/tree_selection success Guessed tree name to be net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 8 this patch: 8
netdev/cc_maintainers success CCed 9 of 9 maintainers
netdev/build_clang fail Errors and warnings before: 18 this patch: 21
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 8 this patch: 8
netdev/checkpatch warning WARNING: line length of 100 exceeds 80 columns
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Suman Ghosh July 3, 2023, 9:17 a.m. UTC 
MCAM drop rule with ether_type==802.1Q and vlan_id==0 is not supported.

Signed-off-by: Suman Ghosh <sumang@marvell.com>
---
 .../net/ethernet/marvell/octeontx2/nic/otx2_flows.c |  7 +++++++
 .../net/ethernet/marvell/octeontx2/nic/otx2_tc.c    | 13 +++++++++++++
 2 files changed, 20 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c
index 10e11262d48a..49ba27875111 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c
@@ -871,6 +871,13 @@  static int otx2_prepare_flow_request(struct ethtool_rx_flow_spec *fsp,
 			if (be16_to_cpu(fsp->m_ext.vlan_etype) != 0xFFFF)
 				return -EINVAL;
 
+			/* 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;
+
 			vlan_etype = be16_to_cpu(fsp->h_ext.vlan_etype);
 			/* Only ETH_P_8021Q and ETH_P_802AD types supported */
 			if (vlan_etype != ETH_P_8021Q &&
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
index 044cc211424e..6c0fdc2bad73 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
@@ -604,6 +604,19 @@  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) {