diff options
Diffstat (limited to 'include/net/flow_offload.h')
| -rw-r--r-- | include/net/flow_offload.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h index cd3510ac66b0..64807aa03cee 100644 --- a/include/net/flow_offload.h +++ b/include/net/flow_offload.h @@ -3,6 +3,7 @@ #include <linux/kernel.h> #include <linux/list.h> +#include <linux/netlink.h> #include <net/flow_dissector.h> #include <linux/rhashtable.h> @@ -154,6 +155,12 @@ enum flow_action_mangle_base { FLOW_ACT_MANGLE_HDR_TYPE_UDP, }; +#define FLOW_ACTION_HW_STATS_TYPE_IMMEDIATE BIT(0) +#define FLOW_ACTION_HW_STATS_TYPE_DELAYED BIT(1) +#define FLOW_ACTION_HW_STATS_TYPE_ANY (FLOW_ACTION_HW_STATS_TYPE_IMMEDIATE | \ + FLOW_ACTION_HW_STATS_TYPE_DELAYED) +#define FLOW_ACTION_HW_STATS_TYPE_DISABLED 0 + typedef void (*action_destr)(void *priv); struct flow_action_cookie { @@ -168,6 +175,7 @@ void flow_action_cookie_destroy(struct flow_action_cookie *cookie); struct flow_action_entry { enum flow_action_id id; + u8 hw_stats_type; action_destr destructor; void *destructor_priv; union { @@ -248,6 +256,66 @@ static inline bool flow_offload_has_one_action(const struct flow_action *action) return action->num_entries == 1; } +static inline bool +flow_action_mixed_hw_stats_types_check(const struct flow_action *action, + struct netlink_ext_ack *extack) +{ + const struct flow_action_entry *action_entry; + u8 uninitialized_var(last_hw_stats_type); + int i; + + if (flow_offload_has_one_action(action)) + return true; + + for (i = 0; i < action->num_entries; i++) { + action_entry = &action->entries[i]; + if (i && action_entry->hw_stats_type != last_hw_stats_type) { + NL_SET_ERR_MSG_MOD(extack, "Mixing HW stats types for actions is not supported"); + return false; + } + last_hw_stats_type = action_entry->hw_stats_type; + } + return true; +} + +static inline const struct flow_action_entry * +flow_action_first_entry_get(const struct flow_action *action) +{ + WARN_ON(!flow_action_has_entries(action)); + return &action->entries[0]; +} + +static inline bool +flow_action_hw_stats_types_check(const struct flow_action *action, + struct netlink_ext_ack *extack, + u8 allowed_hw_stats_type) +{ + const struct flow_action_entry *action_entry; + + if (!flow_action_has_entries(action)) + return true; + if (!flow_action_mixed_hw_stats_types_check(action, extack)) + return false; + action_entry = flow_action_first_entry_get(action); + if (allowed_hw_stats_type == 0 && + action_entry->hw_stats_type != FLOW_ACTION_HW_STATS_TYPE_ANY) { + NL_SET_ERR_MSG_MOD(extack, "Driver supports only default HW stats type \"any\""); + return false; + } else if (allowed_hw_stats_type != 0 && + action_entry->hw_stats_type != allowed_hw_stats_type) { + NL_SET_ERR_MSG_MOD(extack, "Driver does not support selected HW stats type"); + return false; + } + return true; +} + +static inline bool +flow_action_basic_hw_stats_types_check(const struct flow_action *action, + struct netlink_ext_ack *extack) +{ + return flow_action_hw_stats_types_check(action, extack, 0); +} + #define flow_action_for_each(__i, __act, __actions) \ for (__i = 0, __act = &(__actions)->entries[0]; __i < (__actions)->num_entries; __act = &(__actions)->entries[++__i]) |