diff options
| author |   Damjan Marion <damarion@cisco.com> | 2017-07-13 18:53:27 +0200 |
|---|---|---|
| committer |   Dave Barach <openvpp@barachs.net> | 2017-07-14 15:39:24 +0000 |
| commit | 072401e8096c648b91f958bd911f64ce24fecff9 (patch) | |
| tree | 5ef774bbcf5e9c072b8795d39115b012015e05f1 /src/plugins/dpdk/device/node.c | |
| parent | 0f09b77778644577545235156a2ea2798ec9ee6c (diff) | |
Introduce l{2,3,4}_hdr_offset fields in the buffer metadata
To save space in the first cacheline following is changed:
- total_length_not_including_first_buffer moved to the 2nd cacheline.
This field is used only when VLIB_BUFFER_TOTAL_LENGTH_VALID and
VLIB_BUFFER_NEXT_PRESENT are both set.
- free_list_index is now stored in 4bits inside flags, which
allows up to 16 free lists. In case we need more we can store index
in the 2nd cachelin
Change-Id: Ic8521350819391af470d31d3fa1013e67ecb7681
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/plugins/dpdk/device/node.c')
| -rw-r--r-- | src/plugins/dpdk/device/node.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/plugins/dpdk/device/node.c b/src/plugins/dpdk/device/node.c index 69acc52964c..74fb8da1f2e 100644 --- a/src/plugins/dpdk/device/node.c +++ b/src/plugins/dpdk/device/node.c @@ -208,7 +208,13 @@ dpdk_process_subseq_segs (vlib_main_t * vm, vlib_buffer_t * b, mb_seg = mb->next; b_chain = b; - while ((mb->nb_segs > 1) && (nb_seg < mb->nb_segs)) + if (mb->nb_segs < 2) + return; + + b->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID; + b->total_length_not_including_first_buffer = 0; + + while (nb_seg < mb->nb_segs) { ASSERT (mb_seg != 0); |