+/** \brief Translate array of buffer indices into buffer pointers with offset
+
+ @param vm - (vlib_main_t *) vlib main data structure pointer
+ @param bi - (u32 *) array of buffer indices
+ @param b - (void **) array to store buffer pointers
+ @param count - (uword) number of elements
+ @param offset - (i32) offset applied to each pointer
+*/
+static_always_inline void
+vlib_get_buffers_with_offset (vlib_main_t * vm, u32 * bi, void **b, int count,
+ i32 offset)
+{
+#ifdef CLIB_HAVE_VEC256
+ u64x4 off = u64x4_splat (buffer_main.buffer_mem_start + offset);
+ /* if count is not const, compiler will not unroll while loop
+ se we maintain two-in-parallel variant */
+ while (count >= 8)
+ {
+ u64x4 b0 = u32x4_extend_to_u64x4 (u32x4_load_unaligned (bi));
+ u64x4 b1 = u32x4_extend_to_u64x4 (u32x4_load_unaligned (bi + 4));
+ /* shift and add to get vlib_buffer_t pointer */
+ u64x4_store_unaligned ((b0 << CLIB_LOG2_CACHE_LINE_BYTES) + off, b);
+ u64x4_store_unaligned ((b1 << CLIB_LOG2_CACHE_LINE_BYTES) + off, b + 4);
+ b += 8;
+ bi += 8;
+ count -= 8;
+ }
+#endif
+ while (count >= 4)
+ {
+#ifdef CLIB_HAVE_VEC256
+ u64x4 b0 = u32x4_extend_to_u64x4 (u32x4_load_unaligned (bi));
+ /* shift and add to get vlib_buffer_t pointer */
+ u64x4_store_unaligned ((b0 << CLIB_LOG2_CACHE_LINE_BYTES) + off, b);
+#elif defined (CLIB_HAVE_VEC128)
+ u64x2 off = u64x2_splat (buffer_main.buffer_mem_start + offset);
+ u32x4 bi4 = u32x4_load_unaligned (bi);
+ u64x2 b0 = u32x4_extend_to_u64x2 ((u32x4) bi4);
+#if defined (__aarch64__)
+ u64x2 b1 = u32x4_extend_to_u64x2_high ((u32x4) bi4);
+#else
+ bi4 = u32x4_shuffle (bi4, 2, 3, 0, 1);
+ u64x2 b1 = u32x4_extend_to_u64x2 ((u32x4) bi4);
+#endif
+ u64x2_store_unaligned ((b0 << CLIB_LOG2_CACHE_LINE_BYTES) + off, b);
+ u64x2_store_unaligned ((b1 << CLIB_LOG2_CACHE_LINE_BYTES) + off, b + 2);
+#else
+ b[0] = ((u8 *) vlib_get_buffer (vm, bi[0])) + offset;
+ b[1] = ((u8 *) vlib_get_buffer (vm, bi[1])) + offset;
+ b[2] = ((u8 *) vlib_get_buffer (vm, bi[2])) + offset;
+ b[3] = ((u8 *) vlib_get_buffer (vm, bi[3])) + offset;
+#endif
+ b += 4;
+ bi += 4;
+ count -= 4;
+ }
+ while (count)
+ {
+ b[0] = ((u8 *) vlib_get_buffer (vm, bi[0])) + offset;
+ b += 1;
+ bi += 1;
+ count -= 1;
+ }
+}
+
+/** \brief Translate array of buffer indices into buffer pointers
+
+ @param vm - (vlib_main_t *) vlib main data structure pointer
+ @param bi - (u32 *) array of buffer indices
+ @param b - (vlib_buffer_t **) array to store buffer pointers
+ @param count - (uword) number of elements
+*/
+
+static_always_inline void
+vlib_get_buffers (vlib_main_t * vm, u32 * bi, vlib_buffer_t ** b, int count)
+{
+ vlib_get_buffers_with_offset (vm, bi, (void **) b, count, 0);
+}
+