m->buf_addr = RTE_PTR_ADD(ext_mem->buf_ptr, ctx->off);
m->buf_iova = ext_mem->buf_iova == RTE_BAD_IOVA ?
RTE_BAD_IOVA : (ext_mem->buf_iova + ctx->off);
ctx->off += ext_mem->elt_size;
m->buf_addr = RTE_PTR_ADD(ext_mem->buf_ptr, ctx->off);
m->buf_iova = ext_mem->buf_iova == RTE_BAD_IOVA ?
RTE_BAD_IOVA : (ext_mem->buf_iova + ctx->off);
ctx->off += ext_mem->elt_size;