From b9250a9eee1dc259f11bdb9bb8c881da56b52895 Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Mon, 2 Mar 2020 19:02:15 +0100 Subject: rdma: improve rx loop Type: improvement Change-Id: If81847bc0c92d167ce03e1e94a2f8e18f8154af2 Signed-off-by: Damjan Marion --- src/vlib/buffer_funcs.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'src/vlib/buffer_funcs.h') diff --git a/src/vlib/buffer_funcs.h b/src/vlib/buffer_funcs.h index 58abdb18841..07f270c8c23 100644 --- a/src/vlib/buffer_funcs.h +++ b/src/vlib/buffer_funcs.h @@ -140,6 +140,24 @@ vlib_buffer_copy_indices (u32 * dst, u32 * src, u32 n_indices) } } +always_inline void +vlib_buffer_copy_indices_from_ring (u32 * dst, u32 * ring, 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 (dst, ring + start, n_buffers); + } + else + { + u32 n = ring_size - start; + vlib_buffer_copy_indices (dst, ring + start, n); + vlib_buffer_copy_indices (dst + n, ring, 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) -- cgit 1.2.3-korg