Offload following modify MAC address actions to E-Switch
via TC-Flower driver
- RTE_FLOW_ACTION_TYPE_SET_MAC_SRC
- RTE_FLOW_ACTION_TYPE_SET_MAC_DST
The corresponding rte_flow_item_eth must be present in
rte_flow pattern
Only support modify outer layer MAC address
The example testpmd command is:
flow create 0 transfer ingress
pattern eth / ipv4 / udp dst is 7000 / end
actions set_mac_dst mac_addr dd:00:aa:11:bb:33 /
set_mac_src mac_addr bb:00:cc:11:aa:22 /
port_id id 1 / end
Signed-off-by: Xiaoyu Min <jack...@mellanox.com>
---
drivers/net/mlx5/mlx5_flow.h | 2 +
drivers/net/mlx5/mlx5_flow_tcf.c | 71 +++++++++++++++++++++++++++++++-
2 files changed, 72 insertions(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index 0ad8c12ea..22e648b36 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -86,6 +86,8 @@
#define MLX5_FLOW_ACTION_SET_TP_DST (1u << 16)
#define MLX5_FLOW_ACTION_SET_TTL (1u << 17)
#define MLX5_FLOW_ACTION_DEC_TTL (1u << 18)
+#define MLX5_FLOW_ACTION_SET_MAC_SRC (1u << 19)
+#define MLX5_FLOW_ACTION_SET_MAC_DST (1u << 20)
#define MLX5_FLOW_FATE_ACTIONS \
(MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_QUEUE | MLX5_FLOW_ACTION_RSS)
diff --git a/drivers/net/mlx5/mlx5_flow_tcf.c b/drivers/net/mlx5/mlx5_flow_tcf.c
index af8a68529..c10fdd3fb 100644
--- a/drivers/net/mlx5/mlx5_flow_tcf.c
+++ b/drivers/net/mlx5/mlx5_flow_tcf.c
@@ -305,7 +305,9 @@ struct flow_tcf_ptoi {
MLX5_FLOW_ACTION_SET_TP_SRC | \
MLX5_FLOW_ACTION_SET_TP_DST | \
MLX5_FLOW_ACTION_SET_TTL | \
- MLX5_FLOW_ACTION_DEC_TTL)
+ MLX5_FLOW_ACTION_DEC_TTL | \
+ MLX5_FLOW_ACTION_SET_MAC_SRC | \
+ MLX5_FLOW_ACTION_SET_MAC_DST)
#define MLX5_TCF_CONFIG_ACTIONS (MLX5_FLOW_ACTION_PORT_ID | \
MLX5_FLOW_ACTION_OF_PUSH_VLAN | \
@@ -345,6 +347,42 @@ flow_tcf_calc_pedit_keys(const uint64_t size)
return keys;
}
+/**
+ * Set pedit key of MAC address
+ *
+ * @param[in] actions
+ * pointer to action specification
+ * @param[in,out] p_parser
+ * pointer to pedit_parser
+ */
+static void
+flow_tcf_pedit_key_set_mac(const struct rte_flow_action *actions,
+ struct pedit_parser *p_parser)
+{
+ int idx = p_parser->sel.nkeys;
+ uint32_t off = actions->type == RTE_FLOW_ACTION_TYPE_SET_MAC_SRC ?
+ offsetof(struct ether_hdr, s_addr) :
+ offsetof(struct ether_hdr, d_addr);
+ const struct rte_flow_action_set_mac *conf =
+ (const struct rte_flow_action_set_mac *)actions->conf;
+
+ p_parser->keys[idx].off = off;
+ p_parser->keys[idx].mask = ~UINT32_MAX;
+ p_parser->keys_ex[idx].htype = TCA_PEDIT_KEY_EX_HDR_TYPE_ETH;
+ p_parser->keys_ex[idx].cmd = TCA_PEDIT_KEY_EX_CMD_SET;
+ memcpy(&p_parser->keys[idx].val,
+ conf->mac_addr, SZ_PEDIT_KEY_VAL);
+ idx++;
+ p_parser->keys[idx].off = off + SZ_PEDIT_KEY_VAL;
+ p_parser->keys[idx].mask = 0xFFFF0000;
+ p_parser->keys_ex[idx].htype = TCA_PEDIT_KEY_EX_HDR_TYPE_ETH;
+ p_parser->keys_ex[idx].cmd = TCA_PEDIT_KEY_EX_CMD_SET;
+ memcpy(&p_parser->keys[idx].val,
+ conf->mac_addr + SZ_PEDIT_KEY_VAL,
+ ETHER_ADDR_LEN - SZ_PEDIT_KEY_VAL);
+ p_parser->sel.nkeys = (++idx);
+}
+
/**
* Set pedit key of decrease/set ttl
*
@@ -529,6 +567,10 @@ flow_tcf_create_pedit_mnl_msg(struct nlmsghdr *nl,
flow_tcf_pedit_key_set_dec_ttl(*actions,
&p_parser, item_flags);
break;
+ case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
+ case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
+ flow_tcf_pedit_key_set_mac(*actions, &p_parser);
+ break;
default:
goto pedit_mnl_msg_done;
}
@@ -617,6 +659,14 @@ flow_tcf_get_pedit_actions_size(const struct
rte_flow_action **actions,
keys += flow_tcf_calc_pedit_keys(TTL_LEN);
flags |= MLX5_FLOW_ACTION_DEC_TTL;
break;
+ case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
+ keys += flow_tcf_calc_pedit_keys(ETHER_ADDR_LEN);
+ flags |= MLX5_FLOW_ACTION_SET_MAC_SRC;
+ break;
+ case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
+ keys += flow_tcf_calc_pedit_keys(ETHER_ADDR_LEN);
+ flags |= MLX5_FLOW_ACTION_SET_MAC_DST;
+ break;
default:
goto get_pedit_action_size_done;
}
@@ -1141,6 +1191,12 @@ flow_tcf_validate(struct rte_eth_dev *dev,
case RTE_FLOW_ACTION_TYPE_DEC_TTL:
current_action_flag = MLX5_FLOW_ACTION_DEC_TTL;
break;
+ case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
+ current_action_flag = MLX5_FLOW_ACTION_SET_MAC_SRC;
+ break;
+ case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
+ current_action_flag = MLX5_FLOW_ACTION_SET_MAC_DST;
+ break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION,
@@ -1245,6 +1301,15 @@ flow_tcf_validate(struct rte_eth_dev *dev,
actions,
"no IP found in pattern");
}
+ if (action_flags &
+ (MLX5_FLOW_ACTION_SET_MAC_SRC | MLX5_FLOW_ACTION_SET_MAC_DST)) {
+ if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L2))
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION,
+ actions,
+ "no ethernet found in"
+ " pattern");
+ }
return 0;
}
@@ -1396,6 +1461,8 @@ flow_tcf_get_actions_and_size(const struct
rte_flow_action actions[],
case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
case RTE_FLOW_ACTION_TYPE_SET_TTL:
case RTE_FLOW_ACTION_TYPE_DEC_TTL:
+ case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
+ case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
size += flow_tcf_get_pedit_actions_size(&actions,
&flags);
break;
@@ -1942,6 +2009,8 @@ flow_tcf_translate(struct rte_eth_dev *dev, struct
mlx5_flow *dev_flow,
case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
case RTE_FLOW_ACTION_TYPE_SET_TTL:
case RTE_FLOW_ACTION_TYPE_DEC_TTL:
+ case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
+ case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
na_act_index =
mnl_attr_nest_start(nlh, na_act_index_cur++);
flow_tcf_create_pedit_mnl_msg(nlh,
--
2.17.1
