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| author |   Luca Boccassi <luca.boccassi@gmail.com> | 2017-11-16 13:18:21 +0000 |
|---|---|---|
| committer | Luca Boccassi <luca.boccassi@gmail.com> | 2017-11-16 13:19:21 +0000 |
| commit | 169a9de21e263aa6599cdc2d87a45ae158d9f509 (patch) | |
| tree | 54b453b237bd1606b0811b4312155441cc99f017 /lib/librte_mbuf/rte_mbuf.h | |
| parent | 976be7358289d46cd5ed8131bbf2e2c5a6838d3c (diff) | |
New upstream version 17.11
Change-Id: Iee75c1267695faa05f289fe9bb512945507a4c45
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'lib/librte_mbuf/rte_mbuf.h')
| -rw-r--r-- | lib/librte_mbuf/rte_mbuf.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h index 7e326bbc..ce8a05dd 100644 --- a/lib/librte_mbuf/rte_mbuf.h +++ b/lib/librte_mbuf/rte_mbuf.h @@ -584,6 +584,9 @@ struct rte_mbuf { } __rte_cache_aligned; +/**< Maximum number of nb_segs allowed. */ +#define RTE_MBUF_MAX_NB_SEGS UINT16_MAX + /** * Prefetch the first part of the mbuf * @@ -1447,7 +1450,7 @@ static inline struct rte_mbuf *rte_pktmbuf_clone(struct rte_mbuf *md, { struct rte_mbuf *mc, *mi, **prev; uint32_t pktlen; - uint8_t nseg; + uint16_t nseg; if (unlikely ((mc = rte_pktmbuf_alloc(mp)) == NULL)) return NULL; @@ -1807,14 +1810,14 @@ static inline const void *rte_pktmbuf_read(const struct rte_mbuf *m, * * @return * - 0, on success. - * - -EOVERFLOW, if the chain is full (256 entries) + * - -EOVERFLOW, if the chain segment limit exceeded */ static inline int rte_pktmbuf_chain(struct rte_mbuf *head, struct rte_mbuf *tail) { struct rte_mbuf *cur_tail; /* Check for number-of-segments-overflow */ - if (head->nb_segs + tail->nb_segs >= 1 << (sizeof(head->nb_segs) * 8)) + if (head->nb_segs + tail->nb_segs > RTE_MBUF_MAX_NB_SEGS) return -EOVERFLOW; /* Chain 'tail' onto the old tail */ @@ -1822,7 +1825,7 @@ static inline int rte_pktmbuf_chain(struct rte_mbuf *head, struct rte_mbuf *tail cur_tail->next = tail; /* accumulate number of segments and total length. */ - head->nb_segs = (uint8_t)(head->nb_segs + tail->nb_segs); + head->nb_segs += tail->nb_segs; head->pkt_len += tail->pkt_len; /* pkt_len is only set in the head */ |