diff options
author | 2017-01-25 14:18:03 +0100 | |
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committer | 2017-02-28 21:12:48 +0000 | |
commit | c47ed032c6d036a9f942fc9ced48874fad55b48c (patch) | |
tree | f983e46b265200797648f9d5ec6be51b659a41e5 /src/vnet/devices/dpdk/buffer.c | |
parent | 05472b625fc401f1514a148f7122e6c3c571765a (diff) |
vlib: add buffer cloning support
Change-Id: I50070611af15b2b4cc29664a8bee4f821ac3c835
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vnet/devices/dpdk/buffer.c')
-rw-r--r-- | src/vnet/devices/dpdk/buffer.c | 41 |
1 files changed, 31 insertions, 10 deletions
diff --git a/src/vnet/devices/dpdk/buffer.c b/src/vnet/devices/dpdk/buffer.c index 007093e4..f95d4cb5 100644 --- a/src/vnet/devices/dpdk/buffer.c +++ b/src/vnet/devices/dpdk/buffer.c @@ -79,20 +79,46 @@ STATIC_ASSERT (VLIB_BUFFER_PRE_DATA_SIZE == RTE_PKTMBUF_HEADROOM, "VLIB_BUFFER_PRE_DATA_SIZE must be equal to RTE_PKTMBUF_HEADROOM"); +static_always_inline void +dpdk_rte_pktmbuf_free (vlib_main_t * vm, vlib_buffer_t * b) +{ + vlib_buffer_t *hb = b; + struct rte_mbuf *mb; + u32 next, flags; + mb = rte_mbuf_from_vlib_buffer (hb); + +next: + flags = b->flags; + next = b->next_buffer; + mb = rte_mbuf_from_vlib_buffer (b); + + if (PREDICT_FALSE (b->n_add_refs)) + { + rte_mbuf_refcnt_update (mb, b->n_add_refs); + b->n_add_refs = 0; + } + + rte_pktmbuf_free_seg (mb); + + if (flags & VLIB_BUFFER_NEXT_PRESENT) + { + b = vlib_get_buffer (vm, next); + goto next; + } +} + static void del_free_list (vlib_main_t * vm, vlib_buffer_free_list_t * f) { u32 i; - struct rte_mbuf *mb; vlib_buffer_t *b; for (i = 0; i < vec_len (f->buffers); i++) { b = vlib_get_buffer (vm, f->buffers[i]); - mb = rte_mbuf_from_vlib_buffer (b); - ASSERT (rte_mbuf_refcnt_read (mb) == 1); - rte_pktmbuf_free (mb); + dpdk_rte_pktmbuf_free (vm, b); } + vec_free (f->name); vec_free (f->buffers); } @@ -325,7 +351,6 @@ vlib_buffer_free_inline (vlib_main_t * vm, for (i = 0; i < n_buffers; i++) { vlib_buffer_t *b; - struct rte_mbuf *mb; b = vlib_get_buffer (vm, buffers[i]); @@ -351,11 +376,7 @@ vlib_buffer_free_inline (vlib_main_t * vm, else { if (PREDICT_TRUE ((b->flags & VLIB_BUFFER_RECYCLE) == 0)) - { - mb = rte_mbuf_from_vlib_buffer (b); - ASSERT (rte_mbuf_refcnt_read (mb) == 1); - rte_pktmbuf_free (mb); - } + dpdk_rte_pktmbuf_free (vm, b); } } if (vec_len (bm->announce_list)) |