Signed-off-by: Xueming Li <xuemi...@mellanox.com>
---
drivers/net/mlx5/mlx5_flow.c | 101 ++++++++++++++++++++++++++++++++++++++++---
1 file changed, 94 insertions(+), 7 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index 39c19abce..771d5f14d 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -37,6 +37,7 @@
/* Internet Protocol versions. */
#define MLX5_IPV4 4
#define MLX5_IPV6 6
+#define MLX5_GRE 47
#ifndef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
struct ibv_flow_spec_counter_action {
@@ -89,6 +90,11 @@ mlx5_flow_create_vxlan(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);
+
struct mlx5_flow_parse;
static void
@@ -231,6 +237,10 @@ 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. */
@@ -284,7 +294,8 @@ static const enum rte_flow_action_type valid_actions[] = {
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,
@@ -316,7 +327,8 @@ static const struct mlx5_flow_items 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 = {
@@ -333,7 +345,8 @@ static const struct mlx5_flow_items 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 = {
@@ -386,6 +399,19 @@ static const struct mlx5_flow_items 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_ETH,
+ 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,
@@ -401,7 +427,7 @@ static const struct mlx5_flow_items 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; /**< Verbs value, 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. */
@@ -829,13 +855,13 @@ mlx5_flow_convert_items_validate(const struct
rte_flow_item items[],
cur_item->mask_sz);
if (ret)
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;
@@ -1641,6 +1667,67 @@ mlx5_flow_create_vxlan(const struct rte_flow_item *item,
}
/**
+ * 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.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_create_gre(const struct rte_flow_item *item __rte_unused,
+ const void *default_mask __rte_unused,
+ struct mlx5_flow_data *data)
+{
+ struct mlx5_flow_parse *parser = data->parser;
+ 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,
+ };
+ struct ibv_flow_spec_ipv4_ext *ipv4;
+ struct ibv_flow_spec_ipv6 *ipv6;
+ unsigned int i;
+
+ parser->inner = IBV_FLOW_SPEC_INNER;
+ /* Update encapsulation IP layer protocol. */
+ for (i = 0; i != hash_rxq_init_n; ++i) {
+ if (!parser->queue[i].ibv_attr)
+ continue;
+ if (parser->out_layer == HASH_RXQ_IPV4) {
+ ipv4 = (void *)((uintptr_t)parser->queue[i].ibv_attr +
+ parser->queue[i].offset -
+ sizeof(struct ibv_flow_spec_ipv4_ext));
+ if (ipv4->mask.proto && ipv4->val.proto != MLX5_GRE)
+ break;
+ ipv4->val.proto = MLX5_GRE;
+ ipv4->mask.proto = 0xff;
+ } else if (parser->out_layer == HASH_RXQ_IPV6) {
+ ipv6 = (void *)((uintptr_t)parser->queue[i].ibv_attr +
+ parser->queue[i].offset -
+ sizeof(struct ibv_flow_spec_ipv6));
+ if (ipv6->mask.next_hdr &&
+ ipv6->val.next_hdr != MLX5_GRE)
+ break;
+ ipv6->val.next_hdr = MLX5_GRE;
+ ipv6->mask.next_hdr = 0xff;
+ }
+ }
+ if (i != hash_rxq_init_n)
+ return rte_flow_error_set(data->error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item,
+ "IP protocol of GRE must be 47");
+ mlx5_flow_create_copy(parser, &tunnel, size);
+ return 0;
+}
+
+/**
* Convert mark/flag action to Verbs specification.
*
* @param parser
--
2.13.3
