app/crypto-perf: honour min headroom/tailroom

[dpdk.git] / app / test-crypto-perf / cperf_test_common.c

diff --git a/app/test-crypto-perf/cperf_test_common.c b/app/test-crypto-perf/cperf_test_common.c
index 423782c..e803dc1 100644 (file)
--- a/app/test-crypto-perf/cperf_test_common.c
+++ b/app/test-crypto-perf/cperf_test_common.c
@@ -11,12 +11,15 @@ struct obj_params {
        uint32_t src_buf_offset;
        uint32_t dst_buf_offset;
        uint16_t segment_sz;
+       uint16_t headroom_sz;
+       uint16_t data_len;
        uint16_t segments_nb;
 };
 
 static void
 fill_single_seg_mbuf(struct rte_mbuf *m, struct rte_mempool *mp,
-               void *obj, uint32_t mbuf_offset, uint16_t segment_sz)
+               void *obj, uint32_t mbuf_offset, uint16_t segment_sz,
+               uint16_t headroom, uint16_t data_len)
 {
        uint32_t mbuf_hdr_size = sizeof(struct rte_mbuf);
 
@@ -26,10 +29,10 @@ fill_single_seg_mbuf(struct rte_mbuf *m, struct rte_mempool *mp,
        m->buf_iova = rte_mempool_virt2iova(obj) +
                mbuf_offset + mbuf_hdr_size;
        m->buf_len = segment_sz;
-       m->data_len = segment_sz;
+       m->data_len = data_len;
 
-       /* No headroom needed for the buffer */
-       m->data_off = 0;
+       /* Use headroom specified for the buffer */
+       m->data_off = headroom;
 
        /* init some constant fields */
        m->pool = mp;
@@ -42,7 +45,7 @@ fill_single_seg_mbuf(struct rte_mbuf *m, struct rte_mempool *mp,
 static void
 fill_multi_seg_mbuf(struct rte_mbuf *m, struct rte_mempool *mp,
                void *obj, uint32_t mbuf_offset, uint16_t segment_sz,
-               uint16_t segments_nb)
+               uint16_t headroom, uint16_t data_len, uint16_t segments_nb)
 {
        uint16_t mbuf_hdr_size = sizeof(struct rte_mbuf);
        uint16_t remaining_segments = segments_nb;
@@ -57,10 +60,10 @@ fill_multi_seg_mbuf(struct rte_mbuf *m, struct rte_mempool *mp,
                m->buf_iova = next_seg_phys_addr;
                next_seg_phys_addr += mbuf_hdr_size + segment_sz;
                m->buf_len = segment_sz;
-               m->data_len = segment_sz;
+               m->data_len = data_len;
 
-               /* No headroom needed for the buffer */
-               m->data_off = 0;
+               /* Use headroom specified for the buffer */
+               m->data_off = headroom;
 
                /* init some constant fields */
                m->pool = mp;
@@ -99,10 +102,12 @@ mempool_obj_init(struct rte_mempool *mp,
        op->sym->m_src = m;
        if (params->segments_nb == 1)
                fill_single_seg_mbuf(m, mp, obj, params->src_buf_offset,
-                               params->segment_sz);
+                               params->segment_sz, params->headroom_sz,
+                               params->data_len);
        else
                fill_multi_seg_mbuf(m, mp, obj, params->src_buf_offset,
-                               params->segment_sz, params->segments_nb);
+                               params->segment_sz, params->headroom_sz,
+                               params->data_len, params->segments_nb);
 
 
        /* Set destination buffer */
@@ -110,7 +115,8 @@ mempool_obj_init(struct rte_mempool *mp,
                m = (struct rte_mbuf *) ((uint8_t *) obj +
                                params->dst_buf_offset);
                fill_single_seg_mbuf(m, mp, obj, params->dst_buf_offset,
-                               params->segment_sz);
+                               params->segment_sz, params->headroom_sz,
+                               params->data_len);
                op->sym->m_dst = m;
        } else
                op->sym->m_dst = NULL;
@@ -172,6 +178,11 @@ cperf_alloc_common_memory(const struct cperf_options *options,
 
        struct obj_params params = {
                .segment_sz = options->segment_sz,
+               .headroom_sz = options->headroom_sz,
+               /* Data len = segment size - (headroom + tailroom) */
+               .data_len = options->segment_sz -
+                           options->headroom_sz -
+                           options->tailroom_sz,
                .segments_nb = segments_nb,
                .src_buf_offset = crypto_op_total_size_padded,
                .dst_buf_offset = 0