[v2,4/6] net/mlx5/hws: add setter for IPv6 routing push remove
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Commit Message
The rte action will be translated to multiple dr_actions which need
different setters to program them.
In order to leverage the existing setter logic, there is a new callback
introduce which called fetch_opt with unique parameter.
For each setter, it may have different reparsing properties.
Setter which requires no reparse can't share the same one with
the one has reparse enabled even if there is spare space.
Signed-off-by: Rongwei Liu <rongweil@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Acked-by: Ori Kam <orika@nvidia.com>
---
drivers/net/mlx5/hws/mlx5dr_action.c | 174 +++++++++++++++++++++++++++
drivers/net/mlx5/hws/mlx5dr_action.h | 3 +-
2 files changed, 176 insertions(+), 1 deletion(-)
@@ -3311,6 +3311,121 @@ mlx5dr_action_setter_reformat_trailer(struct mlx5dr_actions_apply_data *apply,
apply->wqe_data[MLX5DR_ACTION_OFFSET_DW7] = 0;
}
+static void
+mlx5dr_action_setter_ipv6_route_ext_gen_push_mhdr(uint8_t *data, void *mh_data)
+{
+ uint8_t *action_ptr = mh_data;
+ uint32_t *ipv6_dst_addr;
+ uint8_t seg_left;
+ uint32_t i;
+
+ /* Fetch the last IPv6 address in the segment list which is the next hop */
+ seg_left = MLX5_GET(header_ipv6_routing_ext, data, segments_left) - 1;
+ ipv6_dst_addr = (uint32_t *)data + MLX5_ST_SZ_DW(header_ipv6_routing_ext)
+ + seg_left * MLX5_ST_SZ_DW(definer_hl_ipv6_addr);
+
+ /* Load next hop IPv6 address in reverse order to ipv6.dst_address */
+ for (i = 0; i < MLX5_ST_SZ_DW(definer_hl_ipv6_addr); i++) {
+ MLX5_SET(set_action_in, action_ptr, data, be32toh(*ipv6_dst_addr++));
+ action_ptr += MLX5DR_MODIFY_ACTION_SIZE;
+ }
+
+ /* Set ipv6_route_ext.next_hdr per user input */
+ MLX5_SET(set_action_in, action_ptr, data, *data);
+}
+
+static void
+mlx5dr_action_setter_ipv6_route_ext_mhdr(struct mlx5dr_actions_apply_data *apply,
+ struct mlx5dr_actions_wqe_setter *setter)
+{
+ struct mlx5dr_rule_action *rule_action = apply->rule_action;
+ struct mlx5dr_actions_wqe_setter tmp_setter = {0};
+ struct mlx5dr_rule_action tmp_rule_action;
+ __be64 cmd[MLX5_SRV6_SAMPLE_NUM] = {0};
+ struct mlx5dr_action *ipv6_ext_action;
+ uint8_t *header;
+
+ header = rule_action[setter->idx_double].ipv6_ext.header;
+ ipv6_ext_action = rule_action[setter->idx_double].action;
+ tmp_rule_action.action = ipv6_ext_action->ipv6_route_ext.action[setter->extra_data];
+
+ if (tmp_rule_action.action->flags & MLX5DR_ACTION_FLAG_SHARED) {
+ tmp_rule_action.modify_header.offset = 0;
+ tmp_rule_action.modify_header.pattern_idx = 0;
+ tmp_rule_action.modify_header.data = NULL;
+ } else {
+ /*
+ * Copy ipv6_dst from ipv6_route_ext.last_seg.
+ * Set ipv6_route_ext.next_hdr.
+ */
+ mlx5dr_action_setter_ipv6_route_ext_gen_push_mhdr(header, cmd);
+ tmp_rule_action.modify_header.data = (uint8_t *)cmd;
+ tmp_rule_action.modify_header.pattern_idx = 0;
+ tmp_rule_action.modify_header.offset =
+ rule_action[setter->idx_double].ipv6_ext.offset;
+ }
+
+ apply->rule_action = &tmp_rule_action;
+
+ /* Reuse regular */
+ mlx5dr_action_setter_modify_header(apply, &tmp_setter);
+
+ /* Swap rule actions from backup */
+ apply->rule_action = rule_action;
+}
+
+static void
+mlx5dr_action_setter_ipv6_route_ext_insert_ptr(struct mlx5dr_actions_apply_data *apply,
+ struct mlx5dr_actions_wqe_setter *setter)
+{
+ struct mlx5dr_rule_action *rule_action = apply->rule_action;
+ struct mlx5dr_actions_wqe_setter tmp_setter = {0};
+ struct mlx5dr_rule_action tmp_rule_action;
+ struct mlx5dr_action *ipv6_ext_action;
+ uint8_t header[MLX5_PUSH_MAX_LEN];
+
+ ipv6_ext_action = rule_action[setter->idx_double].action;
+ tmp_rule_action.action = ipv6_ext_action->ipv6_route_ext.action[setter->extra_data];
+
+ if (tmp_rule_action.action->flags & MLX5DR_ACTION_FLAG_SHARED) {
+ tmp_rule_action.reformat.offset = 0;
+ tmp_rule_action.reformat.hdr_idx = 0;
+ tmp_rule_action.reformat.data = NULL;
+ } else {
+ memcpy(header, rule_action[setter->idx_double].ipv6_ext.header,
+ tmp_rule_action.action->reformat.header_size);
+ /* Clear ipv6_route_ext.next_hdr for right checksum */
+ MLX5_SET(header_ipv6_routing_ext, header, next_hdr, 0);
+ tmp_rule_action.reformat.data = header;
+ tmp_rule_action.reformat.hdr_idx = 0;
+ tmp_rule_action.reformat.offset =
+ rule_action[setter->idx_double].ipv6_ext.offset;
+ }
+
+ apply->rule_action = &tmp_rule_action;
+
+ /* Reuse regular */
+ mlx5dr_action_setter_insert_ptr(apply, &tmp_setter);
+
+ /* Swap rule actions from backup */
+ apply->rule_action = rule_action;
+}
+
+static void
+mlx5dr_action_setter_ipv6_route_ext_pop(struct mlx5dr_actions_apply_data *apply,
+ struct mlx5dr_actions_wqe_setter *setter)
+{
+ struct mlx5dr_rule_action *rule_action = &apply->rule_action[setter->idx_single];
+ uint8_t idx = MLX5DR_ACTION_IPV6_EXT_MAX_SA - 1;
+ struct mlx5dr_action *action;
+
+ /* Pop the ipv6_route_ext as set_single logic */
+ action = rule_action->action->ipv6_route_ext.action[idx];
+ apply->wqe_data[MLX5DR_ACTION_OFFSET_DW5] = 0;
+ apply->wqe_ctrl->stc_ix[MLX5DR_ACTION_STC_IDX_DW5] =
+ htobe32(action->stc[apply->tbl_type].offset);
+}
+
int mlx5dr_action_template_process(struct mlx5dr_action_template *at)
{
struct mlx5dr_actions_wqe_setter *start_setter = at->setters + 1;
@@ -3374,6 +3489,65 @@ int mlx5dr_action_template_process(struct mlx5dr_action_template *at)
setter->idx_double = i;
break;
+ case MLX5DR_ACTION_TYP_POP_IPV6_ROUTE_EXT:
+ /*
+ * Backup ipv6_route_ext.next_hdr to ipv6_route_ext.seg_left.
+ * Set ipv6_route_ext.next_hdr to 0 for checksum bug.
+ */
+ setter = mlx5dr_action_setter_find_first(last_setter, ASF_DOUBLE | ASF_REMOVE);
+ setter->flags |= ASF_DOUBLE | ASF_MODIFY;
+ setter->set_double = &mlx5dr_action_setter_ipv6_route_ext_mhdr;
+ setter->idx_double = i;
+ setter->extra_data = 0;
+ setter++;
+
+ /*
+ * Restore ipv6_route_ext.next_hdr from ipv6_route_ext.seg_left.
+ * Load the final destination address from flex parser sample 1->4.
+ */
+ setter->flags |= ASF_DOUBLE | ASF_MODIFY;
+ setter->set_double = &mlx5dr_action_setter_ipv6_route_ext_mhdr;
+ setter->idx_double = i;
+ setter->extra_data = 1;
+ setter++;
+
+ /* Set the ipv6.protocol per ipv6_route_ext.next_hdr */
+ setter->flags |= ASF_DOUBLE | ASF_MODIFY;
+ setter->set_double = &mlx5dr_action_setter_ipv6_route_ext_mhdr;
+ setter->idx_double = i;
+ setter->extra_data = 2;
+ /* Pop ipv6_route_ext */
+ setter->flags |= ASF_SINGLE1 | ASF_REMOVE;
+ setter->set_single = &mlx5dr_action_setter_ipv6_route_ext_pop;
+ setter->idx_single = i;
+ break;
+
+ case MLX5DR_ACTION_TYP_PUSH_IPV6_ROUTE_EXT:
+ /* Insert ipv6_route_ext with next_hdr as 0 due to checksum bug */
+ setter = mlx5dr_action_setter_find_first(last_setter, ASF_DOUBLE | ASF_REMOVE);
+ setter->flags |= ASF_DOUBLE | ASF_INSERT;
+ setter->set_double = &mlx5dr_action_setter_ipv6_route_ext_insert_ptr;
+ setter->idx_double = i;
+ setter->extra_data = 0;
+ setter++;
+
+ /* Set ipv6.protocol as IPPROTO_ROUTING: 0x2b */
+ setter->flags |= ASF_DOUBLE | ASF_MODIFY;
+ setter->set_double = &mlx5dr_action_setter_ipv6_route_ext_mhdr;
+ setter->idx_double = i;
+ setter->extra_data = 1;
+ setter++;
+
+ /*
+ * Load the right ipv6_route_ext.next_hdr per user input buffer.
+ * Load the next dest_addr from the ipv6_route_ext.seg_list[last].
+ */
+ setter->flags |= ASF_DOUBLE | ASF_MODIFY;
+ setter->set_double = &mlx5dr_action_setter_ipv6_route_ext_mhdr;
+ setter->idx_double = i;
+ setter->extra_data = 2;
+ break;
+
case MLX5DR_ACTION_TYP_MODIFY_HDR:
/* Double modify header list */
setter = mlx5dr_action_setter_find_first(last_setter, ASF_DOUBLE | ASF_REMOVE);
@@ -6,7 +6,7 @@
#define MLX5DR_ACTION_H_
/* Max number of STEs needed for a rule (including match) */
-#define MLX5DR_ACTION_MAX_STE 10
+#define MLX5DR_ACTION_MAX_STE 20
/* Max number of internal subactions of ipv6_ext */
#define MLX5DR_ACTION_IPV6_EXT_MAX_SA 4
@@ -109,6 +109,7 @@ struct mlx5dr_actions_wqe_setter {
uint8_t idx_ctr;
uint8_t idx_hit;
uint8_t flags;
+ uint8_t extra_data;
};
struct mlx5dr_action_template {