This commit add the IPv4/IPv6 DSCP rewrite actions to the PMD code.
Supported actions:
RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP
RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP
Signed-off-by: Suanming Mou <suanmi...@mellanox.com>
---
drivers/net/mlx5/mlx5_flow.h | 6 +-
drivers/net/mlx5/mlx5_flow_dv.c | 178 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 183 insertions(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index 3fff5dd..88d2eb1 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -202,6 +202,8 @@ enum mlx5_feature_name {
#define MLX5_FLOW_ACTION_MARK_EXT (1ull << 33)
#define MLX5_FLOW_ACTION_SET_META (1ull << 34)
#define MLX5_FLOW_ACTION_METER (1ull << 35)
+#define MLX5_FLOW_ACTION_SET_IPV4_DSCP (1ull << 36)
+#define MLX5_FLOW_ACTION_SET_IPV6_DSCP (1ull << 37)
#define MLX5_FLOW_FATE_ACTIONS \
(MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_QUEUE | \
@@ -238,7 +240,9 @@ enum mlx5_feature_name {
MLX5_FLOW_ACTION_OF_SET_VLAN_VID | \
MLX5_FLOW_ACTION_SET_TAG | \
MLX5_FLOW_ACTION_MARK_EXT | \
- MLX5_FLOW_ACTION_SET_META)
+ MLX5_FLOW_ACTION_SET_META | \
+ MLX5_FLOW_ACTION_SET_IPV4_DSCP | \
+ MLX5_FLOW_ACTION_SET_IPV6_DSCP)
#define MLX5_FLOW_VLAN_ACTIONS (MLX5_FLOW_ACTION_OF_POP_VLAN | \
MLX5_FLOW_ACTION_OF_PUSH_VLAN)
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 73aaea4..105acd6 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -157,6 +157,7 @@ struct field_modify_info modify_vlan_out_first_vid[] = {
};
struct field_modify_info modify_ipv4[] = {
+ {1, 1, MLX5_MODI_OUT_IP_DSCP},
{1, 8, MLX5_MODI_OUT_IPV4_TTL},
{4, 12, MLX5_MODI_OUT_SIPV4},
{4, 16, MLX5_MODI_OUT_DIPV4},
@@ -164,6 +165,7 @@ struct field_modify_info modify_ipv4[] = {
};
struct field_modify_info modify_ipv6[] = {
+ {1, 0, MLX5_MODI_OUT_IP_DSCP},
{1, 7, MLX5_MODI_OUT_IPV6_HOPLIMIT},
{4, 8, MLX5_MODI_OUT_SIPV6_127_96},
{4, 12, MLX5_MODI_OUT_SIPV6_95_64},
@@ -1191,6 +1193,76 @@ struct field_modify_info modify_tcp[] = {
}
/**
+ * Convert modify-header set IPv4 DSCP action to DV specification.
+ *
+ * @param[in,out] resource
+ * Pointer to the modify-header resource.
+ * @param[in] action
+ * Pointer to action specification.
+ * @param[out] error
+ * Pointer to the error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+flow_dv_convert_action_modify_ipv4_dscp
+ (struct mlx5_flow_dv_modify_hdr_resource *resource,
+ const struct rte_flow_action *action,
+ struct rte_flow_error *error)
+{
+ const struct rte_flow_action_set_dscp *conf =
+ (const struct rte_flow_action_set_dscp *)(action->conf);
+ struct rte_flow_item item = { .type = RTE_FLOW_ITEM_TYPE_IPV4 };
+ struct rte_flow_item_ipv4 ipv4;
+ struct rte_flow_item_ipv4 ipv4_mask;
+
+ memset(&ipv4, 0, sizeof(ipv4));
+ memset(&ipv4_mask, 0, sizeof(ipv4_mask));
+ ipv4.hdr.type_of_service = conf->dscp;
+ ipv4_mask.hdr.type_of_service = 0x3f;
+ item.spec = &ipv4;
+ item.mask = &ipv4_mask;
+ return flow_dv_convert_modify_action(&item, modify_ipv4, NULL, resource,
+ MLX5_MODIFICATION_TYPE_SET, error);
+}
+
+/**
+ * Convert modify-header set IPv6 DSCP action to DV specification.
+ *
+ * @param[in,out] resource
+ * Pointer to the modify-header resource.
+ * @param[in] action
+ * Pointer to action specification.
+ * @param[out] error
+ * Pointer to the error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+flow_dv_convert_action_modify_ipv6_dscp
+ (struct mlx5_flow_dv_modify_hdr_resource *resource,
+ const struct rte_flow_action *action,
+ struct rte_flow_error *error)
+{
+ const struct rte_flow_action_set_dscp *conf =
+ (const struct rte_flow_action_set_dscp *)(action->conf);
+ struct rte_flow_item item = { .type = RTE_FLOW_ITEM_TYPE_IPV6 };
+ struct rte_flow_item_ipv6 ipv6;
+ struct rte_flow_item_ipv6 ipv6_mask;
+
+ memset(&ipv6, 0, sizeof(ipv6));
+ memset(&ipv6_mask, 0, sizeof(ipv6_mask));
+ ipv6.hdr.vtc_flow = conf->dscp;
+ ipv6_mask.hdr.vtc_flow = 0x3f;
+ item.spec = &ipv6;
+ item.mask = &ipv6_mask;
+ return flow_dv_convert_modify_action(&item, modify_ipv6, NULL, resource,
+ MLX5_MODIFICATION_TYPE_SET, error);
+}
+
+/**
* Validate MARK item.
*
* @param[in] dev
@@ -3433,6 +3505,74 @@ struct field_modify_info modify_tcp[] = {
}
/**
+ * Validate the modify-header IPv4 DSCP actions.
+ *
+ * @param[in] action_flags
+ * Holds the actions detected until now.
+ * @param[in] action
+ * Pointer to the modify action.
+ * @param[in] item_flags
+ * Holds the items detected.
+ * @param[out] error
+ * Pointer to error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+flow_dv_validate_action_modify_ipv4_dscp(const uint64_t action_flags,
+ const struct rte_flow_action *action,
+ const uint64_t item_flags,
+ struct rte_flow_error *error)
+{
+ int ret = 0;
+
+ ret = flow_dv_validate_action_modify_hdr(action_flags, action, error);
+ if (!ret) {
+ if (!(item_flags & MLX5_FLOW_LAYER_L3_IPV4))
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ACTION,
+ NULL,
+ "no ipv4 item in pattern");
+ }
+ return ret;
+}
+
+/**
+ * Validate the modify-header IPv6 DSCP actions.
+ *
+ * @param[in] action_flags
+ * Holds the actions detected until now.
+ * @param[in] action
+ * Pointer to the modify action.
+ * @param[in] item_flags
+ * Holds the items detected.
+ * @param[out] error
+ * Pointer to error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+flow_dv_validate_action_modify_ipv6_dscp(const uint64_t action_flags,
+ const struct rte_flow_action *action,
+ const uint64_t item_flags,
+ struct rte_flow_error *error)
+{
+ int ret = 0;
+
+ ret = flow_dv_validate_action_modify_hdr(action_flags, action, error);
+ if (!ret) {
+ if (!(item_flags & MLX5_FLOW_LAYER_L3_IPV6))
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ACTION,
+ NULL,
+ "no ipv6 item in pattern");
+ }
+ return ret;
+}
+
+/**
* Find existing modify-header resource or create and register a new one.
*
* @param dev[in, out]
@@ -4806,6 +4946,32 @@ struct field_modify_info modify_tcp[] = {
action_flags |= MLX5_FLOW_ACTION_METER;
++actions_n;
break;
+ case RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP:
+ ret = flow_dv_validate_action_modify_ipv4_dscp
+ (action_flags,
+ actions,
+ item_flags,
+ error);
+ if (ret < 0)
+ return ret;
+ /* Count all modify-header actions as one action. */
+ if (!(action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS))
+ ++actions_n;
+ action_flags |= MLX5_FLOW_ACTION_SET_IPV4_DSCP;
+ break;
+ case RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP:
+ ret = flow_dv_validate_action_modify_ipv6_dscp
+ (action_flags,
+ actions,
+ item_flags,
+ error);
+ if (ret < 0)
+ return ret;
+ /* Count all modify-header actions as one action. */
+ if (!(action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS))
+ ++actions_n;
+ action_flags |= MLX5_FLOW_ACTION_SET_IPV6_DSCP;
+ break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION,
@@ -7032,6 +7198,18 @@ struct field_modify_info modify_tcp[] = {
flow->meter->mfts->meter_action;
action_flags |= MLX5_FLOW_ACTION_METER;
break;
+ case RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP:
+ if (flow_dv_convert_action_modify_ipv4_dscp(&mhdr_res,
+ actions, error))
+ return -rte_errno;
+ action_flags |= MLX5_FLOW_ACTION_SET_IPV4_DSCP;
+ break;
+ case RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP:
+ if (flow_dv_convert_action_modify_ipv6_dscp(&mhdr_res,
+ actions, error))
+ return -rte_errno;
+ action_flags |= MLX5_FLOW_ACTION_SET_IPV6_DSCP;
+ break;
case RTE_FLOW_ACTION_TYPE_END:
actions_end = true;
if (mhdr_res.actions_num) {
--
1.8.3.1
