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-rw-r--r--doc/guides/nics/mlx5.rst8
-rw-r--r--drivers/net/mlx5/mlx5_flow.c107
2 files changed, 110 insertions, 5 deletions
diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index db2af18..fca2502 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -329,16 +329,16 @@ Run-time configuration
- ``l3_vxlan_en`` parameter [int]
- A nonzero value allows L3 VXLAN flow creation. To enable L3 VXLAN, users
- has to configure firmware and enable this parameter. This is a prerequisite
- to receive this kind of traffic.
+ A nonzero value allows L3 VXLAN and VXLAN-GPE flow creation. To enable
+ L3 VXLAN or VXLAN-GPE, users has to configure firmware and enable this
+ parameter. This is a prerequisite to receive this kind of traffic.
Disabled by default.
Firmware configuration
~~~~~~~~~~~~~~~~~~~~~~
-- L3 VXLAN destination UDP port
+- L3 VXLAN and VXLAN-GPE destination UDP port
.. code-block:: console
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index 78e3563..a3433b0 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -92,6 +92,11 @@ mlx5_flow_create_vxlan(const struct rte_flow_item *item,
struct mlx5_flow_data *data);
static int
+mlx5_flow_create_vxlan_gpe(const struct rte_flow_item *item,
+ const void *default_mask,
+ struct mlx5_flow_data *data);
+
+static int
mlx5_flow_create_gre(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data);
@@ -242,10 +247,12 @@ struct rte_flow {
#define IS_TUNNEL(type) ( \
(type) == RTE_FLOW_ITEM_TYPE_VXLAN || \
+ (type) == RTE_FLOW_ITEM_TYPE_VXLAN_GPE || \
(type) == RTE_FLOW_ITEM_TYPE_GRE)
const uint32_t flow_ptype[] = {
[RTE_FLOW_ITEM_TYPE_VXLAN] = RTE_PTYPE_TUNNEL_VXLAN,
+ [RTE_FLOW_ITEM_TYPE_VXLAN_GPE] = RTE_PTYPE_TUNNEL_VXLAN_GPE,
[RTE_FLOW_ITEM_TYPE_GRE] = RTE_PTYPE_TUNNEL_GRE,
};
@@ -254,6 +261,8 @@ const uint32_t flow_ptype[] = {
const uint32_t ptype_ext[] = {
[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)] = RTE_PTYPE_TUNNEL_VXLAN |
RTE_PTYPE_L4_UDP,
+ [PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN_GPE)] = RTE_PTYPE_TUNNEL_VXLAN_GPE |
+ RTE_PTYPE_L4_UDP,
[PTYPE_IDX(RTE_PTYPE_TUNNEL_GRE)] = RTE_PTYPE_TUNNEL_GRE,
};
@@ -311,6 +320,7 @@ static const struct mlx5_flow_items mlx5_flow_items[] = {
[RTE_FLOW_ITEM_TYPE_END] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH,
RTE_FLOW_ITEM_TYPE_VXLAN,
+ RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
RTE_FLOW_ITEM_TYPE_GRE),
},
[RTE_FLOW_ITEM_TYPE_ETH] = {
@@ -389,7 +399,8 @@ static const struct mlx5_flow_items mlx5_flow_items[] = {
.dst_sz = sizeof(struct ibv_flow_spec_ipv6),
},
[RTE_FLOW_ITEM_TYPE_UDP] = {
- .items = ITEMS(RTE_FLOW_ITEM_TYPE_VXLAN),
+ .items = ITEMS(RTE_FLOW_ITEM_TYPE_VXLAN,
+ RTE_FLOW_ITEM_TYPE_VXLAN_GPE),
.actions = valid_actions,
.mask = &(const struct rte_flow_item_udp){
.hdr = {
@@ -441,6 +452,19 @@ static const struct mlx5_flow_items mlx5_flow_items[] = {
.convert = mlx5_flow_create_vxlan,
.dst_sz = sizeof(struct ibv_flow_spec_tunnel),
},
+ [RTE_FLOW_ITEM_TYPE_VXLAN_GPE] = {
+ .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH,
+ RTE_FLOW_ITEM_TYPE_IPV4,
+ RTE_FLOW_ITEM_TYPE_IPV6),
+ .actions = valid_actions,
+ .mask = &(const struct rte_flow_item_vxlan_gpe){
+ .vni = "\xff\xff\xff",
+ },
+ .default_mask = &rte_flow_item_vxlan_gpe_mask,
+ .mask_sz = sizeof(struct rte_flow_item_vxlan_gpe),
+ .convert = mlx5_flow_create_vxlan_gpe,
+ .dst_sz = sizeof(struct ibv_flow_spec_tunnel),
+ },
};
/** Structure to pass to the conversion function. */
@@ -1786,6 +1810,87 @@ mlx5_flow_create_vxlan(const struct rte_flow_item *item,
}
/**
+ * Convert VXLAN-GPE item to Verbs specification.
+ *
+ * @param item[in]
+ * Item specification.
+ * @param default_mask[in]
+ * Default bit-masks to use when item->mask is not provided.
+ * @param data[in, out]
+ * User structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_create_vxlan_gpe(const struct rte_flow_item *item,
+ const void *default_mask,
+ struct mlx5_flow_data *data)
+{
+ struct priv *priv = data->dev->data->dev_private;
+ const struct rte_flow_item_vxlan_gpe *spec = item->spec;
+ const struct rte_flow_item_vxlan_gpe *mask = item->mask;
+ struct mlx5_flow_parse *parser = data->parser;
+ unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
+ struct ibv_flow_spec_tunnel vxlan = {
+ .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL,
+ .size = size,
+ };
+ union vni {
+ uint32_t vlan_id;
+ uint8_t vni[4];
+ } id;
+
+ if (!priv->config.l3_vxlan_en)
+ return rte_flow_error_set(data->error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item,
+ "L3 VXLAN not enabled by device"
+ " parameter and/or not configured"
+ " in firmware");
+ id.vni[0] = 0;
+ parser->inner = IBV_FLOW_SPEC_INNER;
+ parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN_GPE)];
+ parser->out_layer = parser->layer;
+ parser->layer = HASH_RXQ_TUNNEL;
+ /* Default VXLAN-GPE to outer RSS. */
+ if (!parser->rss_conf.level)
+ parser->rss_conf.level = 1;
+ if (spec) {
+ if (!mask)
+ mask = default_mask;
+ memcpy(&id.vni[1], spec->vni, 3);
+ vxlan.val.tunnel_id = id.vlan_id;
+ memcpy(&id.vni[1], mask->vni, 3);
+ vxlan.mask.tunnel_id = id.vlan_id;
+ if (spec->protocol)
+ return rte_flow_error_set(data->error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item,
+ "VxLAN-GPE protocol not"
+ " supported");
+ /* Remove unwanted bits from values. */
+ vxlan.val.tunnel_id &= vxlan.mask.tunnel_id;
+ }
+ /*
+ * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this
+ * layer is defined in the Verbs specification it is interpreted as
+ * wildcard and all packets will match this rule, if it follows a full
+ * stack layer (ex: eth / ipv4 / udp), all packets matching the layers
+ * before will also match this rule.
+ * To avoid such situation, VNI 0 is currently refused.
+ */
+ /* Only allow tunnel w/o tunnel id pattern after proper outer spec. */
+ if (parser->out_layer == HASH_RXQ_ETH && !vxlan.val.tunnel_id)
+ return rte_flow_error_set(data->error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item,
+ "VxLAN-GPE vni cannot be 0");
+ mlx5_flow_create_copy(parser, &vxlan, size);
+ return 0;
+}
+
+/**
* Convert GRE item to Verbs specification.
*
* @param item[in]