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ofproto-dpif: Use a fixed size userspace cookie.

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This simplifies the cookie handling a bit.

Signed-off-by: Justin Pettit <jpettit@ovn.org>
Acked-by: Ben Pfaff <blp@ovn.org>
This commit is contained in:
Justin Pettit
2018-01-04 12:37:57 -08:00
parent ae9f2ce7c5
commit 8de6ff3ea8
9 changed files with 100 additions and 119 deletions
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52
lib/odp-util.h
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@@ -300,37 +300,39 @@ enum user_action_cookie_type {
};
/* user_action_cookie is passed as argument to OVS_ACTION_ATTR_USERSPACE. */
union user_action_cookie {
struct user_action_cookie {
uint16_t type; /* enum user_action_cookie_type. */
struct {
uint16_t type; /* USER_ACTION_COOKIE_SFLOW. */
ovs_be16 vlan_tci; /* Destination VLAN TCI. */
uint32_t output; /* SFL_FLOW_SAMPLE_TYPE 'output' value. */
} sflow;
union {
struct {
/* USER_ACTION_COOKIE_SFLOW. */
ovs_be16 vlan_tci; /* Destination VLAN TCI. */
uint32_t output; /* SFL_FLOW_SAMPLE_TYPE 'output' value. */
} sflow;
struct {
uint16_t type; /* USER_ACTION_COOKIE_SLOW_PATH. */
uint16_t unused;
uint32_t reason; /* enum slow_path_reason. */
} slow_path;
struct {
/* USER_ACTION_COOKIE_SLOW_PATH. */
uint16_t unused;
uint32_t reason; /* enum slow_path_reason. */
} slow_path;
struct {
uint16_t type; /* USER_ACTION_COOKIE_FLOW_SAMPLE. */
uint16_t probability; /* Sampling probability. */
uint32_t collector_set_id; /* ID of IPFIX collector set. */
uint32_t obs_domain_id; /* Observation Domain ID. */
uint32_t obs_point_id; /* Observation Point ID. */
odp_port_t output_odp_port; /* The output odp port. */
enum nx_action_sample_direction direction;
} flow_sample;
struct {
/* USER_ACTION_COOKIE_FLOW_SAMPLE. */
uint16_t probability; /* Sampling probability. */
uint32_t collector_set_id; /* ID of IPFIX collector set. */
uint32_t obs_domain_id; /* Observation Domain ID. */
uint32_t obs_point_id; /* Observation Point ID. */
odp_port_t output_odp_port; /* The output odp port. */
enum nx_action_sample_direction direction;
} flow_sample;
struct {
uint16_t type; /* USER_ACTION_COOKIE_IPFIX. */
odp_port_t output_odp_port; /* The output odp port. */
} ipfix;
struct {
/* USER_ACTION_COOKIE_IPFIX. */
odp_port_t output_odp_port; /* The output odp port. */
} ipfix;
};
};
BUILD_ASSERT_DECL(sizeof(union user_action_cookie) == 24);
BUILD_ASSERT_DECL(sizeof(struct user_action_cookie) == 28);
size_t odp_put_userspace_action(uint32_t pid,
const void *userdata, size_t userdata_size,