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authorDamjan Marion <damarion@cisco.com>2017-01-25 14:18:03 +0100
committerDave Barach <openvpp@barachs.net>2017-02-28 21:12:48 +0000
commitc47ed032c6d036a9f942fc9ced48874fad55b48c (patch)
treef983e46b265200797648f9d5ec6be51b659a41e5 /src/vnet/devices/dpdk/device.c
parent05472b625fc401f1514a148f7122e6c3c571765a (diff)
vlib: add buffer cloning support
Change-Id: I50070611af15b2b4cc29664a8bee4f821ac3c835 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vnet/devices/dpdk/device.c')
-rw-r--r--src/vnet/devices/dpdk/device.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/src/vnet/devices/dpdk/device.c b/src/vnet/devices/dpdk/device.c
index c9d9a567b7a..17397900c59 100644
--- a/src/vnet/devices/dpdk/device.c
+++ b/src/vnet/devices/dpdk/device.c
@@ -168,13 +168,11 @@ dpdk_validate_rte_mbuf (vlib_main_t * vm, vlib_buffer_t * b,
{
b2 = vlib_get_buffer (vm, b2->next_buffer);
mb = rte_mbuf_from_vlib_buffer (b2);
- last_mb->next = mb;
- last_mb = mb;
rte_pktmbuf_reset (mb);
}
}
- first_mb = mb = rte_mbuf_from_vlib_buffer (b);
+ last_mb = first_mb = mb = rte_mbuf_from_vlib_buffer (b);
first_mb->nb_segs = 1;
mb->data_len = b->current_length;
mb->pkt_len = maybe_multiseg ? vlib_buffer_length_in_chain (vm, b) :
@@ -185,10 +183,17 @@ dpdk_validate_rte_mbuf (vlib_main_t * vm, vlib_buffer_t * b,
{
b = vlib_get_buffer (vm, b->next_buffer);
mb = rte_mbuf_from_vlib_buffer (b);
+ last_mb->next = mb;
+ last_mb = mb;
mb->data_len = b->current_length;
mb->pkt_len = b->current_length;
mb->data_off = VLIB_BUFFER_PRE_DATA_SIZE + b->current_data;
first_mb->nb_segs++;
+ if (PREDICT_FALSE (b->n_add_refs))
+ {
+ rte_mbuf_refcnt_update (mb, b->n_add_refs);
+ b->n_add_refs = 0;
+ }
}
}