* 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
- * configuration of the PMD. If this flag is set,
+ * 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.
*/
/**
* The RX packet is a double VLAN, and the outer tci has been
- * saved in in mbuf->vlan_tci_outer.
+ * saved in in mbuf->vlan_tci_outer. If PKT_RX_QINQ set, PKT_RX_VLAN
+ * 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
* present.
*/
#define PKT_RX_QINQ (1ULL << 20)
+/**
+ * Mask of bits used to determine the status of outer RX L4 checksum.
+ * - PKT_RX_OUTER_L4_CKSUM_UNKNOWN: no info about the outer RX L4 checksum
+ * - PKT_RX_OUTER_L4_CKSUM_BAD: the outer L4 checksum in the packet is wrong
+ * - PKT_RX_OUTER_L4_CKSUM_GOOD: the outer L4 checksum in the packet is valid
+ * - PKT_RX_OUTER_L4_CKSUM_INVALID: invalid outer L4 checksum state.
+ *
+ * The detection of PKT_RX_OUTER_L4_CKSUM_GOOD shall be based on the given
+ * HW capability, At minimum, the PMD should support
+ * PKT_RX_OUTER_L4_CKSUM_UNKNOWN and PKT_RX_OUTER_L4_CKSUM_BAD states
+ * if the DEV_RX_OFFLOAD_OUTER_UDP_CKSUM offload is available.
+ */
+#define PKT_RX_OUTER_L4_CKSUM_MASK ((1ULL << 21) | (1ULL << 22))
+
+#define PKT_RX_OUTER_L4_CKSUM_UNKNOWN 0
+#define PKT_RX_OUTER_L4_CKSUM_BAD (1ULL << 21)
+#define PKT_RX_OUTER_L4_CKSUM_GOOD (1ULL << 22)
+#define PKT_RX_OUTER_L4_CKSUM_INVALID ((1ULL << 21) | (1ULL << 22))
+
/* add new RX flags here */
/* add new TX flags here */
+/**
+ * Indicate that the metadata field in the mbuf is in use.
+ */
+#define PKT_TX_METADATA (1ULL << 40)
+
+/**
+ * Outer UDP checksum offload flag. This flag is used for enabling
+ * outer UDP checksum in PMD. To use outer UDP checksum, the user needs to
+ * 1) Enable the following in mbuff,
+ * a) Fill outer_l2_len and outer_l3_len in mbuf.
+ * b) Set the PKT_TX_OUTER_UDP_CKSUM flag.
+ * c) Set the PKT_TX_OUTER_IPV4 or PKT_TX_OUTER_IPV6 flag.
+ * 2) Configure DEV_TX_OFFLOAD_OUTER_UDP_CKSUM offload flag.
+ */
+#define PKT_TX_OUTER_UDP_CKSUM (1ULL << 41)
+
/**
* UDP Fragmentation Offload flag. This flag is used for enabling UDP
* fragmentation in SW or in HW. When use UFO, mbuf->tso_segsz is used
* which can be set for packet.
*/
#define PKT_TX_OFFLOAD_MASK ( \
+ PKT_TX_OUTER_IPV6 | \
+ PKT_TX_OUTER_IPV4 | \
+ PKT_TX_OUTER_IP_CKSUM | \
+ PKT_TX_VLAN_PKT | \
+ PKT_TX_IPV6 | \
+ PKT_TX_IPV4 | \
PKT_TX_IP_CKSUM | \
PKT_TX_L4_MASK | \
- PKT_TX_OUTER_IP_CKSUM | \
- PKT_TX_TCP_SEG | \
PKT_TX_IEEE1588_TMST | \
+ PKT_TX_TCP_SEG | \
PKT_TX_QINQ_PKT | \
- PKT_TX_VLAN_PKT | \
PKT_TX_TUNNEL_MASK | \
PKT_TX_MACSEC | \
- PKT_TX_SEC_OFFLOAD)
+ PKT_TX_SEC_OFFLOAD | \
+ PKT_TX_UDP_SEG | \
+ PKT_TX_OUTER_UDP_CKSUM | \
+ PKT_TX_METADATA)
/**
* Mbuf having an external buffer attached. shinfo in mbuf must be filled.
};
uint16_t nb_segs; /**< Number of segments. */
- /** Input port (16 bits to support more than 256 virtual ports). */
+ /** Input port (16 bits to support more than 256 virtual ports).
+ * The event eth Tx adapter uses this field to specify the output port.
+ */
uint16_t port;
uint64_t ol_flags; /**< Offload features. */
/** VLAN TCI (CPU order), valid if PKT_RX_VLAN is set. */
uint16_t vlan_tci;
+ RTE_STD_C11
union {
- uint32_t rss; /**< RSS hash result if RSS enabled */
- struct {
- RTE_STD_C11
- union {
- struct {
- uint16_t hash;
- uint16_t id;
+ union {
+ uint32_t rss; /**< RSS hash result if RSS enabled */
+ struct {
+ union {
+ struct {
+ uint16_t hash;
+ uint16_t id;
+ };
+ uint32_t lo;
+ /**< Second 4 flexible bytes */
};
+ uint32_t hi;
+ /**< First 4 flexible bytes or FD ID, dependent
+ * on PKT_RX_FDIR_* flag in ol_flags.
+ */
+ } fdir; /**< Filter identifier if FDIR enabled */
+ struct {
uint32_t lo;
- /**< Second 4 flexible bytes */
- };
- uint32_t hi;
- /**< First 4 flexible bytes or FD ID, dependent on
- PKT_RX_FDIR_* flag in ol_flags. */
- } fdir; /**< Filter identifier if FDIR enabled */
+ uint32_t hi;
+ /**< The event eth Tx adapter uses this field
+ * to store Tx queue id.
+ * @see rte_event_eth_tx_adapter_txq_set()
+ */
+ } sched; /**< Hierarchical scheduler */
+ /**< User defined tags. See rte_distributor_process() */
+ uint32_t usr;
+ } hash; /**< hash information */
struct {
- uint32_t lo;
- uint32_t hi;
- } sched; /**< Hierarchical scheduler */
- uint32_t usr; /**< User defined tags. See rte_distributor_process() */
- } hash; /**< hash information */
+ /**
+ * Application specific metadata value
+ * for egress flow rule match.
+ * Valid if PKT_TX_METADATA is set.
+ * Located here to allow conjunct use
+ * with hash.sched.hi.
+ */
+ uint32_t tx_metadata;
+ uint32_t reserved;
+ };
+ };
/** Outer VLAN TCI (CPU order), valid if PKT_RX_QINQ is set. */
uint16_t vlan_tci_outer;
return buffer_addr;
}
+/**
+ * Return the starting address of the private data area embedded in
+ * the given mbuf.
+ *
+ * Note that no check is made to ensure that a private data area
+ * actually exists in the supplied mbuf.
+ *
+ * @param m
+ * The pointer to the mbuf.
+ * @return
+ * The starting address of the private data area of the given mbuf.
+ */
+static inline void * __rte_experimental
+rte_mbuf_to_priv(struct rte_mbuf *m)
+{
+ return RTE_PTR_ADD(m, sizeof(struct rte_mbuf));
+}
+
/**
* Returns TRUE if given mbuf is cloned by mbuf indirection, or FALSE
* otherwise.
#define RTE_MBUF_CLONED(mb) ((mb)->ol_flags & IND_ATTACHED_MBUF)
/**
- * Returns TRUE if given mbuf is indirect, or FALSE otherwise.
+ * Deprecated.
+ * Use RTE_MBUF_CLONED().
*/
#define RTE_MBUF_INDIRECT(mb) RTE_MBUF_CLONED(mb)
rte_mempool_put(m->pool, m);
}
-/* compat with older versions */
-__rte_deprecated
-static inline void
-__rte_mbuf_raw_free(struct rte_mbuf *m)
-{
- rte_mbuf_raw_free(m);
-}
-
/**
* The packet mbuf constructor.
*
* - EEXIST - a memzone with the same name already exists
* - ENOMEM - no appropriate memory area found in which to create memzone
*/
-struct rte_mempool * __rte_experimental
+struct rte_mempool *
rte_pktmbuf_pool_create_by_ops(const char *name, unsigned int n,
unsigned int cache_size, uint16_t priv_size, uint16_t data_room_size,
int socket_id, const char *ops_name);
return NULL;
}
-/* deprecated, replaced by rte_pktmbuf_prefree_seg() */
-__rte_deprecated
-static inline struct rte_mbuf *
-__rte_pktmbuf_prefree_seg(struct rte_mbuf *m)
-{
- return rte_pktmbuf_prefree_seg(m);
-}
-
/**
* Free a segment of a packet mbuf into its original mempool.
*
if (unlikely(len > rte_pktmbuf_headroom(m)))
return NULL;
- m->data_off -= len;
+ /* NB: elaborating the subtraction like this instead of using
+ * -= allows us to ensure the result type is uint16_t
+ * avoiding compiler warnings on gcc 8.1 at least */
+ m->data_off = (uint16_t)(m->data_off - len);
m->data_len = (uint16_t)(m->data_len + len);
m->pkt_len = (m->pkt_len + len);
if (unlikely(len > m->data_len))
return NULL;
+ /* NB: elaborating the addition like this instead of using
+ * += allows us to ensure the result type is uint16_t
+ * avoiding compiler warnings on gcc 8.1 at least */
m->data_len = (uint16_t)(m->data_len - len);
- m->data_off += len;
+ m->data_off = (uint16_t)(m->data_off + len);
m->pkt_len = (m->pkt_len - len);
return (char *)m->buf_addr + m->data_off;
}
cur_tail = rte_pktmbuf_lastseg(head);
cur_tail->next = tail;
- /* accumulate number of segments and total length. */
- head->nb_segs += tail->nb_segs;
+ /* accumulate number of segments and total length.
+ * NB: elaborating the addition like this instead of using
+ * -= allows us to ensure the result type is uint16_t
+ * avoiding compiler warnings on gcc 8.1 at least */
+ head->nb_segs = (uint16_t)(head->nb_segs + tail->nb_segs);
head->pkt_len += tail->pkt_len;
/* pkt_len is only set in the head */
return 0;
if (ol_flags & PKT_TX_OUTER_IP_CKSUM)
- inner_l3_offset += m->outer_l2_len + m->outer_l3_len;
+ /* NB: elaborating the addition like this instead of using
+ * += gives the result uint64_t type instead of int,
+ * avoiding compiler warnings on gcc 8.1 at least */
+ inner_l3_offset = inner_l3_offset + m->outer_l2_len +
+ m->outer_l3_len;
/* Headers are fragmented */
if (rte_pktmbuf_data_len(m) < inner_l3_offset + m->l3_len + m->l4_len)
git.droids-corp.org / dpdk.git / blobdiff