Flow Manager (flowman) provides DECAP_STRIP operation which
decapsulates VXLAN header and then removes VLAN header from the inner
packet. Use this operation to support vxlan_decap followed by
of_pop_vlan.
Signed-off-by: Hyong Youb Kim <hyon...@cisco.com>
Reviewed-by: John Daley <johnd...@cisco.com>
---
doc/guides/rel_notes/release_20_11.rst | 1 +
drivers/net/enic/enic_fm_flow.c | 30 +++++++++++++++++++++++++-
2 files changed, 30 insertions(+), 1 deletion(-)
diff --git a/doc/guides/rel_notes/release_20_11.rst
b/doc/guides/rel_notes/release_20_11.rst
index 6a7e7d666..4767348d3 100644
--- a/doc/guides/rel_notes/release_20_11.rst
+++ b/doc/guides/rel_notes/release_20_11.rst
@@ -140,3 +140,4 @@ Tested Platforms
* Added support for VF representors with single-queue Tx/Rx and flow API
* Added support for egress PORT_ID action
* Added support for non-zero priorities for group 0 flows
+ * Added support for VXLAN decap combined with VLAN pop
diff --git a/drivers/net/enic/enic_fm_flow.c b/drivers/net/enic/enic_fm_flow.c
index 7eec8e6eb..ef4705d47 100644
--- a/drivers/net/enic/enic_fm_flow.c
+++ b/drivers/net/enic/enic_fm_flow.c
@@ -923,6 +923,20 @@ enic_fm_append_action_op(struct enic_flowman *fm,
return 0;
}
+static struct fm_action_op *
+find_prev_action_op(struct enic_flowman *fm, uint32_t opcode)
+{
+ struct fm_action_op *op;
+ int i;
+
+ for (i = 0; i < fm->action_op_count; i++) {
+ op = &fm->action.fma_action_ops[i];
+ if (op->fa_op == opcode)
+ return op;
+ }
+ return NULL;
+}
+
/* NIC requires that 1st steer appear before decap.
* Correct example: steer, decap, steer, steer, ...
*/
@@ -938,7 +952,8 @@ enic_fm_reorder_action_op(struct enic_flowman *fm)
steer = NULL;
decap = NULL;
while (op->fa_op != FMOP_END) {
- if (!decap && op->fa_op == FMOP_DECAP_NOSTRIP)
+ if (!decap && (op->fa_op == FMOP_DECAP_NOSTRIP ||
+ op->fa_op == FMOP_DECAP_STRIP))
decap = op;
else if (!steer && op->fa_op == FMOP_RQ_STEER)
steer = op;
@@ -1471,6 +1486,19 @@ enic_fm_copy_action(struct enic_flowman *fm,
break;
}
case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN: {
+ struct fm_action_op *decap;
+
+ /*
+ * If decap-nostrip appears before pop vlan, this pop
+ * applies to the inner packet vlan. Turn it into
+ * decap-strip.
+ */
+ decap = find_prev_action_op(fm, FMOP_DECAP_NOSTRIP);
+ if (decap) {
+ ENICPMD_LOG(DEBUG, "pop-vlan inner:
decap-nostrip => decap-strip");
+ decap->fa_op = FMOP_DECAP_STRIP;
+ break;
+ }
memset(&fm_op, 0, sizeof(fm_op));
fm_op.fa_op = FMOP_POP_VLAN;
ret = enic_fm_append_action_op(fm, &fm_op, error);
--
2.26.2
