diff options
| author |   Benoît Ganne <bganne@cisco.com> | 2020-03-19 11:41:07 +0100 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2020-03-20 17:40:36 +0000 |
| commit | 72f4921c8eb567da412125d412fd153b49a349dd (patch) | |
| tree | 3c6b4b85385ba70e526b9e537ee3d4b0782f799d /src/vlib/buffer_funcs.h | |
| parent | 1a8c43778ffbeae4b9084328d07cbc440abb83b2 (diff) | |
rdma: ring db only once per vector on tx
Type: improvement
Change-Id: I09b017d60bc38ff8a4a7a73aff42b27611bd8955
Signed-off-by: Benoît Ganne <bganne@cisco.com>
Diffstat (limited to 'src/vlib/buffer_funcs.h')
| -rw-r--r-- | src/vlib/buffer_funcs.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/vlib/buffer_funcs.h b/src/vlib/buffer_funcs.h index 07f270c8c23..7103227a965 100644 --- a/src/vlib/buffer_funcs.h +++ b/src/vlib/buffer_funcs.h @@ -158,6 +158,24 @@ vlib_buffer_copy_indices_from_ring (u32 * dst, u32 * ring, u32 start, } } +always_inline void +vlib_buffer_copy_indices_to_ring (u32 * ring, u32 * src, u32 start, + u32 ring_size, u32 n_buffers) +{ + ASSERT (n_buffers <= ring_size); + + if (PREDICT_TRUE (start + n_buffers <= ring_size)) + { + vlib_buffer_copy_indices (ring + start, src, n_buffers); + } + else + { + u32 n = ring_size - start; + vlib_buffer_copy_indices (ring + start, src, n); + vlib_buffer_copy_indices (ring, src + n, n_buffers - n); + } +} + STATIC_ASSERT_OFFSET_OF (vlib_buffer_t, template_end, 64); static_always_inline void vlib_buffer_copy_template (vlib_buffer_t * b, vlib_buffer_t * bt) |