[dpdk-dev] [RFC 7/8] mbuf: move sequence number in second cache line
Olivier Matz
olivier.matz at 6wind.com
Tue Jan 24 16:19:32 CET 2017
Move this field in the second cache line, since no driver use it
in Rx path. The freed space will be used by a timestamp in next
commit.
Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
---
lib/librte_mbuf/rte_mbuf.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index de72314..39df3e1 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -465,8 +465,6 @@ struct rte_mbuf {
uint32_t usr; /**< User defined tags. See rte_distributor_process() */
} hash; /**< hash information */
- uint32_t seqn; /**< Sequence number. See also rte_reorder_insert() */
-
/** Outer VLAN TCI (CPU order), valid if PKT_RX_QINQ_STRIPPED is set. */
uint16_t vlan_tci_outer;
@@ -511,6 +509,10 @@ struct rte_mbuf {
/** Timesync flags for use with IEEE1588. */
uint16_t timesync;
+
+ /** Sequence number. See also rte_reorder_insert(). */
+ uint32_t seqn;
+
} __rte_cache_aligned;
/**
--
2.8.1
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