[v2,2/2] net/mlx5: add IPv4/IPv6 DSCP rewrite action
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Commit Message
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 <suanmingm@mellanox.com>
---
drivers/net/mlx5/mlx5_flow.h | 6 +-
drivers/net/mlx5/mlx5_flow_dv.c | 184 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 189 insertions(+), 1 deletion(-)
Comments
From: Suanming Mou
> 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 <suanmingm@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
> ---
> drivers/net/mlx5/mlx5_flow.h | 6 +-
> drivers/net/mlx5/mlx5_flow_dv.c | 184
> ++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 189 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
> index 27d82ac..e42c98a 100644
> --- a/drivers/net/mlx5/mlx5_flow.h
> +++ b/drivers/net/mlx5/mlx5_flow.h
> @@ -196,6 +196,8 @@ 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 | \
> @@ -232,7 +234,9 @@ 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 4c16281..685fceb 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 +1193,82 @@ 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 = RTE_IPV4_HDR_DSCP_MASK >> 2;
> + 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));
> + /*
> + * Even though the DSCP bits offset of IPv6 is not byte aligned,
> + * rdma-core only accept the DSCP bits byte aligned start from
> + * bit 0 to 5 as to be compatible with IPv4. No need to shift the
> + * bits in IPv6 case as rdma-core requires byte aligned value.
> + */
> + ipv6.hdr.vtc_flow = conf->dscp;
> + ipv6_mask.hdr.vtc_flow = RTE_IPV6_HDR_DSCP_MASK >> 22;
> + 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 +3511,74 @@ 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 +4952,32 @@ 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,
> @@ -7101,6 +7273,18 @@ 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
@@ -196,6 +196,8 @@ 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 | \
@@ -232,7 +234,9 @@ 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)
@@ -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 +1193,82 @@ 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 = RTE_IPV4_HDR_DSCP_MASK >> 2;
+ 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));
+ /*
+ * Even though the DSCP bits offset of IPv6 is not byte aligned,
+ * rdma-core only accept the DSCP bits byte aligned start from
+ * bit 0 to 5 as to be compatible with IPv4. No need to shift the
+ * bits in IPv6 case as rdma-core requires byte aligned value.
+ */
+ ipv6.hdr.vtc_flow = conf->dscp;
+ ipv6_mask.hdr.vtc_flow = RTE_IPV6_HDR_DSCP_MASK >> 22;
+ 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 +3511,74 @@ 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 +4952,32 @@ 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,
@@ -7101,6 +7273,18 @@ 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) {