When a drop action for L2 filters is specified, support it.
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Rahul Gupta <rahul.gupta@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Kalesh Anakkur Purayil <kalesh-anakkur.purayil@broadcom.com>
---
drivers/net/bnxt/bnxt_filter.h | 6 ++++
drivers/net/bnxt/bnxt_flow.c | 61 ++++++++++++++++++++++++++++++----
2 files changed, 61 insertions(+), 6 deletions(-)
@@ -15,6 +15,8 @@ struct bnxt;
#define BNXT_FLOW_L2_INNER_SRC_VALID_FLAG BIT(2)
#define BNXT_FLOW_L2_DST_VALID_FLAG BIT(3)
#define BNXT_FLOW_L2_INNER_DST_VALID_FLAG BIT(4)
+#define BNXT_FLOW_L2_DROP_FLAG BIT(5)
+#define BNXT_FLOW_PARSE_INNER_FLAG BIT(6)
struct bnxt_filter_info {
STAILQ_ENTRY(bnxt_filter_info) next;
@@ -146,4 +148,8 @@ struct bnxt_filter_info *bnxt_get_l2_filter(struct bnxt *bp,
HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_ENABLES_MIRROR_VNIC_ID
#define NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID \
HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_ENABLES_MIRROR_VNIC_ID
+#define L2_FILTER_ALLOC_INPUT_EN_T_NUM_VLANS \
+ HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_T_NUM_VLANS
+#define L2_FILTER_ALLOC_INPUT_EN_NUM_VLANS \
+ HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_NUM_VLANS
#endif
@@ -273,6 +273,8 @@ bnxt_validate_and_parse_flow_type(struct bnxt *bp,
rte_be_to_cpu_16(eth_spec->type);
en |= en_ethertype;
}
+ if (inner)
+ valid_flags |= BNXT_FLOW_PARSE_INNER_FLAG;
break;
case RTE_FLOW_ITEM_TYPE_VLAN:
@@ -794,9 +796,36 @@ bnxt_get_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf,
}
}
- filter1->enables = HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR |
+ if (nf->valid_flags & (BNXT_FLOW_L2_DST_VALID_FLAG |
+ BNXT_FLOW_L2_SRC_VALID_FLAG |
+ BNXT_FLOW_L2_INNER_SRC_VALID_FLAG |
+ BNXT_FLOW_L2_INNER_DST_VALID_FLAG)) {
+ filter1->enables =
+ HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR |
L2_FILTER_ALLOC_INPUT_EN_L2_ADDR_MASK;
- memset(filter1->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
+ memset(filter1->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
+ }
+
+ if (nf->valid_flags & BNXT_FLOW_L2_DROP_FLAG) {
+ filter1->flags |=
+ HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_DROP;
+ if (nf->ethertype == RTE_ETHER_TYPE_IPV4) {
+ /* Num VLANs for drop filter will/should be 0.
+ * If the req is memset to 0, then the count will
+ * be automatically set to 0.
+ */
+ if (nf->valid_flags & BNXT_FLOW_PARSE_INNER_FLAG) {
+ filter1->enables |=
+ L2_FILTER_ALLOC_INPUT_EN_T_NUM_VLANS;
+ } else {
+ filter1->enables |=
+ L2_FILTER_ALLOC_INPUT_EN_NUM_VLANS;
+ filter1->flags |=
+ HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
+ }
+ }
+ }
+
rc = bnxt_hwrm_set_l2_filter(bp, vnic->fw_vnic_id,
filter1);
if (rc) {
@@ -893,7 +922,9 @@ bnxt_update_filter_flags_en(struct bnxt_filter_info *filter,
~(BNXT_FLOW_L2_DST_VALID_FLAG |
BNXT_FLOW_L2_SRC_VALID_FLAG |
BNXT_FLOW_L2_INNER_SRC_VALID_FLAG |
- BNXT_FLOW_L2_INNER_DST_VALID_FLAG))) {
+ BNXT_FLOW_L2_INNER_DST_VALID_FLAG |
+ BNXT_FLOW_L2_DROP_FLAG |
+ BNXT_FLOW_PARSE_INNER_FLAG))) {
filter->flags = filter1->flags;
filter->enables = filter1->enables;
filter->filter_type = HWRM_CFA_L2_FILTER;
@@ -1052,19 +1083,27 @@ bnxt_validate_and_parse_flow(struct rte_eth_dev *dev,
break;
case RTE_FLOW_ACTION_TYPE_DROP:
vnic0 = &bp->vnic_info[0];
+ filter->dst_id = vnic0->fw_vnic_id;
+ filter->valid_flags |= BNXT_FLOW_L2_DROP_FLAG;
filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
if (filter1 == NULL) {
+ rte_flow_error_set(error,
+ ENOSPC,
+ RTE_FLOW_ERROR_TYPE_ACTION,
+ act,
+ "Filter not available");
rc = -ENOSPC;
goto ret;
}
- filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
if (filter->filter_type == HWRM_CFA_EM_FILTER)
filter->flags =
HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_DROP;
- else
+ else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
filter->flags =
HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DROP;
+
+ bnxt_update_filter_flags_en(filter, filter1);
break;
case RTE_FLOW_ACTION_TYPE_COUNT:
vnic0 = &bp->vnic_info[0];
@@ -1758,6 +1797,15 @@ bnxt_flow_destroy(struct rte_eth_dev *dev,
done:
if (!ret) {
+ /* If it is a L2 drop filter, when the filter is created,
+ * the FW updates the BC/MC records.
+ * Once this filter is removed, issue the set_rx_mask command
+ * to reset the BC/MC records in the HW to the settings
+ * before the drop counter is created.
+ */
+ if (filter->valid_flags & BNXT_FLOW_L2_DROP_FLAG)
+ bnxt_set_rx_mask_no_vlan(bp, &bp->vnic_info[0]);
+
STAILQ_REMOVE(&vnic->filter, filter, bnxt_filter_info, next);
bnxt_free_filter(bp, filter);
STAILQ_REMOVE(&vnic->flow_list, flow, rte_flow, next);
@@ -1766,7 +1814,8 @@ bnxt_flow_destroy(struct rte_eth_dev *dev,
/* If this was the last flow associated with this vnic,
* switch the queue back to RSS pool.
*/
- if (vnic && STAILQ_EMPTY(&vnic->flow_list)) {
+ if (vnic && !vnic->func_default &&
+ STAILQ_EMPTY(&vnic->flow_list)) {
rte_free(vnic->fw_grp_ids);
if (vnic->rx_queue_cnt > 1)
bnxt_hwrm_vnic_ctx_free(bp, vnic);