Support GRE tunnel type in RTE FLOW.
Signed-off-by: Xueming Li <xuemi...@mellanox.com>
---
drivers/net/mlx5/mlx5_flow.c | 67 +++++++++++++++++++++++++++++++++++++++-----
1 file changed, 60 insertions(+), 7 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index 26002c4..2acd42b 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -79,6 +79,11 @@ struct ibv_flow_spec_counter_action {
const void *default_mask,
void *data);
+static int
+mlx5_flow_create_gre(const struct rte_flow_item *item,
+ const void *default_mask,
+ void *data);
+
struct mlx5_flow_parse;
static void
@@ -222,6 +227,10 @@ struct rte_flow {
__VA_ARGS__, RTE_FLOW_ITEM_TYPE_END, \
}
+#define IS_TUNNEL(type) ( \
+ (type) == RTE_FLOW_ITEM_TYPE_VXLAN || \
+ (type) == RTE_FLOW_ITEM_TYPE_GRE)
+
/** Structure to generate a simple graph of layers supported by the NIC. */
struct mlx5_flow_items {
/** List of possible actions for these items. */
@@ -274,7 +283,8 @@ struct mlx5_flow_items {
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,
+ RTE_FLOW_ITEM_TYPE_GRE),
},
[RTE_FLOW_ITEM_TYPE_ETH] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_VLAN,
@@ -305,7 +315,8 @@ struct mlx5_flow_items {
},
[RTE_FLOW_ITEM_TYPE_IPV4] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP,
- RTE_FLOW_ITEM_TYPE_TCP),
+ RTE_FLOW_ITEM_TYPE_TCP,
+ RTE_FLOW_ITEM_TYPE_GRE),
.actions = valid_actions,
.mask = &(const struct rte_flow_item_ipv4){
.hdr = {
@@ -322,7 +333,8 @@ struct mlx5_flow_items {
},
[RTE_FLOW_ITEM_TYPE_IPV6] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP,
- RTE_FLOW_ITEM_TYPE_TCP),
+ RTE_FLOW_ITEM_TYPE_TCP,
+ RTE_FLOW_ITEM_TYPE_GRE),
.actions = valid_actions,
.mask = &(const struct rte_flow_item_ipv6){
.hdr = {
@@ -375,6 +387,18 @@ struct mlx5_flow_items {
.convert = mlx5_flow_create_tcp,
.dst_sz = sizeof(struct ibv_flow_spec_tcp_udp),
},
+ [RTE_FLOW_ITEM_TYPE_GRE] = {
+ .items = ITEMS(RTE_FLOW_ITEM_TYPE_IPV4,
+ RTE_FLOW_ITEM_TYPE_IPV6),
+ .actions = valid_actions,
+ .mask = &(const struct rte_flow_item_gre){
+ .protocol = -1,
+ },
+ .default_mask = &rte_flow_item_gre_mask,
+ .mask_sz = sizeof(struct rte_flow_item_gre),
+ .convert = mlx5_flow_create_gre,
+ .dst_sz = sizeof(struct ibv_flow_spec_tunnel),
+ },
[RTE_FLOW_ITEM_TYPE_VXLAN] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH),
.actions = valid_actions,
@@ -390,7 +414,7 @@ struct mlx5_flow_items {
/** Structure to pass to the conversion function. */
struct mlx5_flow_parse {
- uint32_t inner; /**< Set once VXLAN is encountered. */
+ uint32_t inner; /**< Verb spec, set once tunnel is encountered. */
uint32_t create:1;
/**< Whether resources should remain after a validate. */
uint32_t drop:1; /**< Target is a drop queue. */
@@ -815,13 +839,13 @@ struct ibv_spec_header {
cur_item->mask_sz);
if (err)
goto exit_item_not_supported;
- if (items->type == RTE_FLOW_ITEM_TYPE_VXLAN) {
+ if (IS_TUNNEL(items->type)) {
if (parser->inner) {
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
items,
- "cannot recognize multiple"
- " VXLAN encapsulations");
+ "Cannot recognize multiple"
+ " tunnel encapsulations.");
return -rte_errno;
}
parser->inner = IBV_FLOW_SPEC_INNER;
@@ -1548,6 +1572,35 @@ struct ibv_spec_header {
}
/**
+ * Convert GRE 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.
+ */
+static int
+mlx5_flow_create_gre(const struct rte_flow_item *item,
+ const void *default_mask,
+ void *data)
+{
+ struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
+ unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
+ struct ibv_flow_spec_tunnel tunnel = {
+ .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL,
+ .size = size,
+ };
+
+ (void)item;
+ (void)default_mask;
+ parser->inner = IBV_FLOW_SPEC_INNER;
+ mlx5_flow_create_copy(parser, &tunnel, size);
+ return 0;
+}
+
+/**
* Convert mark/flag action to Verbs specification.
*
* @param parser
--
1.8.3.1
