On 11/10/2021 9:38 AM, Gregory Etelson wrote:
Demonstrate flex item API usage on known network protocols.
Signed-off-by: Gregory Etelson <getel...@nvidia.com>
Reviewed-by: Viacheslav Ovsiienko <viachesl...@nvidia.com>
<...>
+* Match Geneve basic header
+
+ .. code-block:: c
+ :linenos:
+
+ const struct geneve_hdr geneve_basic_header_spec = {
+ .ver = 0,
+ .opt_len = 0,
+ };
+ const struct geneve_hdr geneve_basic_header_mask = {
+ .ver = 3,
+ .opt_len = 0x3f,
+ };
+
+ const struct rte_flow_item_flex geneve_basic_header_flex_spec = {
+ .handle = geneve_flex_handle,
+ .length = sizeof(geneve_basic_header_spec),
+ .pattern = &geneve_basic_header_spec
+ };
+
+ const struct rte_flow_item_flex geneve_basic_header_flex_mask = {
+ .handle = geneve_flex_handle,
+ .length = sizeof(geneve_basic_header_mask),
+ .pattern = &geneve_basic_header_mask
+ };
+
+ const struct rte_flow_item geneve_basic_header_flow_item = {
+ .type = RTE_FLOW_ITEM_TYPE_FLEX,
+ .spec = (const void *)&geneve_basic_header_flex_spec,
+ .maks = (const void *)&geneve_basic_header_flex_mask,
s/maks/mask/
+ };
+
+* Match if the first option class is Open vSwitch
+
+ .. code-block:: c
+ :linenos:
+
+ const struct geneve_option_hdr geneve_ovs_opt_spec = {
+ .class = rte_cpu_to_be16(0x0101),
+ };
+
+ const struct geneve_option_hdr geneve_ovs_opt_mask = {
+ .class = 0xffff,
+ };
+
+ const struct geneve_hdr geneve_hdr_with_ovs_spec = {
+ .ver = 0,
+ .options = (const unsigned long *)&geneve_ovs_opt_spec
+ };
+
+ const struct geneve_hdr geneve_hdr_with_ovs_mask = {
+ .ver = 3,
+ .options = (const unsigned long *)&geneve_ovs_opt_mask
+ };
+
+ const struct rte_flow_item_flex geneve_flex_spec = {
+ .handle = geneve_flex_handle,
+ .length = sizeof(geneve_hdr_with_ovs_spec) +
sizeof(geneve_ovs_opt_spec),
+ .pattern = &geneve_hdr_with_ovs_spec
+ };
+
+ const struct rte_flow_item_flex geneve_flex_mask = {
+ .handle = geneve_flex_handle,
+ .length = sizeof(geneve_hdr_with_ovs_mask) +
sizeof(geneve_ovs_opt_mask),
+ .pattern = &geneve_hdr_with_ovs_mask
+ };
+
+ const struct rte_flow_item geneve_vni_flow_item = {
+ .type = RTE_FLOW_ITEM_TYPE_FLEX,
+ .spec = (const void *)&geneve_flex_spec,
+ .maks = (const void *)&geneve_flex_mask,
ditto
