*/
#define PKT_TX_OFFLOAD_MASK (PKT_TX_VLAN_PKT | PKT_TX_IP_CKSUM | PKT_TX_L4_MASK)
-/** Offload features */
-union rte_vlan_macip {
- uint32_t data;
- struct {
- uint16_t l3_len:9; /**< L3 (IP) Header Length. */
- uint16_t l2_len:7; /**< L2 (MAC) Header Length. */
- uint16_t vlan_tci;
- /**< VLAN Tag Control Identifier (CPU order). */
- } f;
-};
-
-/*
- * Compare mask for vlan_macip_len.data,
- * should be in sync with rte_vlan_macip.f layout.
- * */
-#define TX_VLAN_CMP_MASK 0xFFFF0000 /**< VLAN length - 16-bits. */
-#define TX_MAC_LEN_CMP_MASK 0x0000FE00 /**< MAC length - 7-bits. */
-#define TX_IP_LEN_CMP_MASK 0x000001FF /**< IP length - 9-bits. */
-/**< MAC+IP length. */
-#define TX_MACIP_LEN_CMP_MASK (TX_MAC_LEN_CMP_MASK | TX_IP_LEN_CMP_MASK)
-
-/**
- * A packet message buffer.
- */
-struct rte_pktmbuf {
- /* valid for any segment */
- struct rte_mbuf *next; /**< Next segment of scattered packet. */
- void* data; /**< Start address of data in segment buffer. */
- uint16_t data_len; /**< Amount of data in segment buffer. */
-
- /* these fields are valid for first segment only */
- uint8_t nb_segs; /**< Number of segments. */
- uint8_t in_port; /**< Input port. */
- uint32_t pkt_len; /**< Total pkt len: sum of all segment data_len. */
-
- /* offload features */
- union rte_vlan_macip vlan_macip;
- union {
- uint32_t rss; /**< RSS hash result if RSS enabled */
- struct {
- uint16_t hash;
- uint16_t id;
- } fdir; /**< Filter identifier if FDIR enabled */
- uint32_t sched; /**< Hierarchical scheduler */
- } hash; /**< hash information */
-};
-
/**
* The generic rte_mbuf, containing a packet mbuf.
*/
void *buf_addr; /**< Virtual address of segment buffer. */
phys_addr_t buf_physaddr; /**< Physical address of segment buffer. */
uint16_t buf_len; /**< Length of segment buffer. */
+
+ /* valid for any segment */
+ struct rte_mbuf *next; /**< Next segment of scattered packet. */
+ uint16_t data_off;
+ uint16_t data_len; /**< Amount of data in segment buffer. */
+ uint32_t pkt_len; /**< Total pkt len: sum of all segments. */
+
#ifdef RTE_MBUF_REFCNT
/**
* 16-bit Reference counter.
uint16_t reserved; /**< Unused field. Required for padding */
uint16_t ol_flags; /**< Offload features. */
- struct rte_pktmbuf pkt;
+ /* these fields are valid for first segment only */
+ uint8_t nb_segs; /**< Number of segments. */
+ uint8_t port; /**< Input port. */
+
+ /* offload features, valid for first segment only */
+ union {
+ uint16_t l2_l3_len; /**< combined l2/l3 lengths as single var */
+ struct {
+ uint16_t l3_len:9; /**< L3 (IP) Header Length. */
+ uint16_t l2_len:7; /**< L2 (MAC) Header Length. */
+ };
+ };
+ uint16_t vlan_tci; /**< VLAN Tag Control Identifier (CPU order). */
+ union {
+ uint32_t rss; /**< RSS hash result if RSS enabled */
+ struct {
+ uint16_t hash;
+ uint16_t id;
+ } fdir; /**< Filter identifier if FDIR enabled */
+ uint32_t sched; /**< Hierarchical scheduler */
+ } hash; /**< hash information */
union {
uint8_t metadata[0];
uint16_t metadata16[0];
uint32_t metadata32[0];
uint64_t metadata64[0];
- };
+ } __rte_cache_aligned;
} __rte_cache_aligned;
#define RTE_MBUF_METADATA_UINT8(mbuf, offset) \
* @param m
* The control mbuf.
*/
-#define rte_ctrlmbuf_data(m) ((m)->pkt.data)
+#define rte_ctrlmbuf_data(m) ((char *)((m)->buf_addr) + (m)->data_off)
/**
* A macro that returns the length of the carried data.
*/
static inline void rte_pktmbuf_reset(struct rte_mbuf *m)
{
- uint32_t buf_ofs;
-
- m->pkt.next = NULL;
- m->pkt.pkt_len = 0;
- m->pkt.vlan_macip.data = 0;
- m->pkt.nb_segs = 1;
- m->pkt.in_port = 0xff;
+ m->next = NULL;
+ m->pkt_len = 0;
+ m->l2_l3_len = 0;
+ m->vlan_tci = 0;
+ m->nb_segs = 1;
+ m->port = 0xff;
m->ol_flags = 0;
- buf_ofs = (RTE_PKTMBUF_HEADROOM <= m->buf_len) ?
+ m->data_off = (RTE_PKTMBUF_HEADROOM <= m->buf_len) ?
RTE_PKTMBUF_HEADROOM : m->buf_len;
- m->pkt.data = (char*) m->buf_addr + buf_ofs;
- m->pkt.data_len = 0;
+ m->data_len = 0;
__rte_mbuf_sanity_check(m, 1);
}
mi->buf_addr = md->buf_addr;
mi->buf_len = md->buf_len;
- mi->pkt = md->pkt;
-
- mi->pkt.next = NULL;
- mi->pkt.pkt_len = mi->pkt.data_len;
- mi->pkt.nb_segs = 1;
+ mi->next = md->next;
+ mi->data_off = md->data_off;
+ mi->data_len = md->data_len;
+ mi->port = md->port;
+ mi->vlan_tci = md->vlan_tci;
+ mi->l2_l3_len = md->l2_l3_len;
+ mi->hash = md->hash;
+
+ mi->next = NULL;
+ mi->pkt_len = mi->data_len;
+ mi->nb_segs = 1;
mi->ol_flags = md->ol_flags;
__rte_mbuf_sanity_check(mi, 1);
{
const struct rte_mempool *mp = m->pool;
void *buf = RTE_MBUF_TO_BADDR(m);
- uint32_t buf_ofs;
uint32_t buf_len = mp->elt_size - sizeof(*m);
m->buf_physaddr = rte_mempool_virt2phy(mp, m) + sizeof (*m);
m->buf_addr = buf;
m->buf_len = (uint16_t)buf_len;
- buf_ofs = (RTE_PKTMBUF_HEADROOM <= m->buf_len) ?
+ m->data_off = (RTE_PKTMBUF_HEADROOM <= m->buf_len) ?
RTE_PKTMBUF_HEADROOM : m->buf_len;
- m->pkt.data = (char*) m->buf_addr + buf_ofs;
- m->pkt.data_len = 0;
+ m->data_len = 0;
}
#endif /* RTE_MBUF_REFCNT */
__rte_mbuf_sanity_check(m, 1);
while (m != NULL) {
- m_next = m->pkt.next;
+ m_next = m->next;
rte_pktmbuf_free_seg(m);
m = m_next;
}
return (NULL);
mi = mc;
- prev = &mi->pkt.next;
- pktlen = md->pkt.pkt_len;
+ prev = &mi->next;
+ pktlen = md->pkt_len;
nseg = 0;
do {
nseg++;
rte_pktmbuf_attach(mi, md);
*prev = mi;
- prev = &mi->pkt.next;
- } while ((md = md->pkt.next) != NULL &&
+ prev = &mi->next;
+ } while ((md = md->next) != NULL &&
(mi = rte_pktmbuf_alloc(mp)) != NULL);
*prev = NULL;
- mc->pkt.nb_segs = nseg;
- mc->pkt.pkt_len = pktlen;
+ mc->nb_segs = nseg;
+ mc->pkt_len = pktlen;
/* Allocation of new indirect segment failed */
if (unlikely (mi == NULL)) {
do {
rte_mbuf_refcnt_update(m, v);
- } while ((m = m->pkt.next) != NULL);
+ } while ((m = m->next) != NULL);
}
#endif /* RTE_MBUF_REFCNT */
static inline uint16_t rte_pktmbuf_headroom(const struct rte_mbuf *m)
{
__rte_mbuf_sanity_check(m, 1);
- return (uint16_t) ((char*) m->pkt.data - (char*) m->buf_addr);
+ return m->data_off;
}
/**
{
__rte_mbuf_sanity_check(m, 1);
return (uint16_t)(m->buf_len - rte_pktmbuf_headroom(m) -
- m->pkt.data_len);
+ m->data_len);
}
/**
struct rte_mbuf *m2 = (struct rte_mbuf *)m;
__rte_mbuf_sanity_check(m, 1);
- while (m2->pkt.next != NULL)
- m2 = m2->pkt.next;
+ while (m2->next != NULL)
+ m2 = m2->next;
return m2;
}
* @param t
* The type to cast the result into.
*/
-#define rte_pktmbuf_mtod(m, t) ((t)((m)->pkt.data))
+#define rte_pktmbuf_mtod(m, t) ((t)((char *)(m)->buf_addr + (m)->data_off))
/**
* A macro that returns the length of the packet.
* @param m
* The packet mbuf.
*/
-#define rte_pktmbuf_pkt_len(m) ((m)->pkt.pkt_len)
+#define rte_pktmbuf_pkt_len(m) ((m)->pkt_len)
/**
* A macro that returns the length of the segment.
* @param m
* The packet mbuf.
*/
-#define rte_pktmbuf_data_len(m) ((m)->pkt.data_len)
+#define rte_pktmbuf_data_len(m) ((m)->data_len)
/**
* Prepend len bytes to an mbuf data area.
if (unlikely(len > rte_pktmbuf_headroom(m)))
return NULL;
- m->pkt.data = (char*) m->pkt.data - len;
- m->pkt.data_len = (uint16_t)(m->pkt.data_len + len);
- m->pkt.pkt_len = (m->pkt.pkt_len + len);
+ m->data_off -= len;
+ m->data_len = (uint16_t)(m->data_len + len);
+ m->pkt_len = (m->pkt_len + len);
- return (char*) m->pkt.data;
+ return (char *)m->buf_addr + m->data_off;
}
/**
if (unlikely(len > rte_pktmbuf_tailroom(m_last)))
return NULL;
- tail = (char*) m_last->pkt.data + m_last->pkt.data_len;
- m_last->pkt.data_len = (uint16_t)(m_last->pkt.data_len + len);
- m->pkt.pkt_len = (m->pkt.pkt_len + len);
+ tail = (char *)m_last->buf_addr + m_last->data_off + m_last->data_len;
+ m_last->data_len = (uint16_t)(m_last->data_len + len);
+ m->pkt_len = (m->pkt_len + len);
return (char*) tail;
}
{
__rte_mbuf_sanity_check(m, 1);
- if (unlikely(len > m->pkt.data_len))
+ if (unlikely(len > m->data_len))
return NULL;
- m->pkt.data_len = (uint16_t)(m->pkt.data_len - len);
- m->pkt.data = ((char*) m->pkt.data + len);
- m->pkt.pkt_len = (m->pkt.pkt_len - len);
- return (char*) m->pkt.data;
+ m->data_len = (uint16_t)(m->data_len - len);
+ m->data_off += len;
+ m->pkt_len = (m->pkt_len - len);
+ return (char *)m->buf_addr + m->data_off;
}
/**
__rte_mbuf_sanity_check(m, 1);
m_last = rte_pktmbuf_lastseg(m);
- if (unlikely(len > m_last->pkt.data_len))
+ if (unlikely(len > m_last->data_len))
return -1;
- m_last->pkt.data_len = (uint16_t)(m_last->pkt.data_len - len);
- m->pkt.pkt_len = (m->pkt.pkt_len - len);
+ m_last->data_len = (uint16_t)(m_last->data_len - len);
+ m->pkt_len = (m->pkt_len - len);
return 0;
}
static inline int rte_pktmbuf_is_contiguous(const struct rte_mbuf *m)
{
__rte_mbuf_sanity_check(m, 1);
- return !!(m->pkt.nb_segs == 1);
+ return !!(m->nb_segs == 1);
}
/**
git.droids-corp.org / dpdk.git / blobdiff