* packet offload flags and some related macros.
* For majority of DPDK entities, it is not recommended to include
* this file directly, use include <rte_mbuf.h> instead.
+ *
+ * New fields and flags should fit in the "dynamic space".
*/
#include <stdint.h>
#define PKT_RX_FDIR_FLX (1ULL << 14)
/**
- * The 2 vlans have been stripped by the hardware and their tci are
- * saved in mbuf->vlan_tci (inner) and mbuf->vlan_tci_outer (outer).
- * This can only happen if vlan stripping is enabled in the RX
+ * The outer VLAN has been stripped by the hardware and its TCI is
+ * saved in mbuf->vlan_tci_outer (outer).
+ * This can only happen if VLAN stripping is enabled in the Rx
* configuration of the PMD.
- * When PKT_RX_QINQ_STRIPPED is set, the flags (PKT_RX_VLAN |
- * PKT_RX_VLAN_STRIPPED | PKT_RX_QINQ) must also be set.
+ * When PKT_RX_QINQ_STRIPPED is set, the flags (PKT_RX_VLAN | PKT_RX_QINQ)
+ * must also be set.
+ *
+ * - If both PKT_RX_QINQ_STRIPPED and PKT_RX_VLAN_STRIPPED are set, the 2 VLANs
+ * have been stripped by the hardware and their TCIs are saved in
+ * mbuf->vlan_tci (inner) and mbuf->vlan_tci_outer (outer).
+ * - If PKT_RX_QINQ_STRIPPED is set and PKT_RX_VLAN_STRIPPED is unset, only the
+ * outer VLAN is removed from packet data, but both tci are saved in
+ * mbuf->vlan_tci (inner) and mbuf->vlan_tci_outer (outer).
*/
#define PKT_RX_QINQ_STRIPPED (1ULL << 15)
/**
* The RX packet is a double VLAN, and the outer tci has been
- * saved in in mbuf->vlan_tci_outer. If PKT_RX_QINQ set, PKT_RX_VLAN
+ * saved in in mbuf->vlan_tci_outer. If this flag is set:
+ * - PKT_RX_VLAN must also be set
+ * -
* also should be set and inner tci should be saved to mbuf->vlan_tci.
* If the flag PKT_RX_QINQ_STRIPPED is also present, both VLANs
* headers have been stripped from mbuf data, else they are still
RTE_STD_C11
union {
uint32_t packet_type; /**< L2/L3/L4 and tunnel information. */
+ __extension__
struct {
- uint32_t l2_type:4; /**< (Outer) L2 type. */
- uint32_t l3_type:4; /**< (Outer) L3 type. */
- uint32_t l4_type:4; /**< (Outer) L4 type. */
- uint32_t tun_type:4; /**< Tunnel type. */
+ uint8_t l2_type:4; /**< (Outer) L2 type. */
+ uint8_t l3_type:4; /**< (Outer) L3 type. */
+ uint8_t l4_type:4; /**< (Outer) L4 type. */
+ uint8_t tun_type:4; /**< Tunnel type. */
RTE_STD_C11
union {
uint8_t inner_esp_next_proto;
/**< Inner L3 type. */
};
};
- uint32_t inner_l4_type:4; /**< Inner L4 type. */
+ uint8_t inner_l4_type:4; /**< Inner L4 type. */
};
};
struct rte_mbuf_ext_shared_info {
rte_mbuf_extbuf_free_callback_t free_cb; /**< Free callback function */
void *fcb_opaque; /**< Free callback argument */
- rte_atomic16_t refcnt_atomic; /**< Atomically accessed refcnt */
+ RTE_STD_C11
+ union {
+ rte_atomic16_t refcnt_atomic; /**< Atomically accessed refcnt */
+ uint16_t refcnt;
+ };
};
/**< Maximum number of nb_segs allowed. */