[dpdk-dev] [PATCH v2 06/15] event/sw: switch test counter to dynamic mbuf field

[Thomas Monjalon]

The test worker_loopback used the deprecated mbuf field udata64.
It is moved to a dynamic field in order to allow removal of udata64.

Signed-off-by: Thomas Monjalon <tho...@monjalon.net>
Reviewed-by: Andrew Rybchenko <andrew.rybche...@oktetlabs.ru>
---
 drivers/event/sw/sw_evdev_selftest.c | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/drivers/event/sw/sw_evdev_selftest.c 
b/drivers/event/sw/sw_evdev_selftest.c
index 5c7e527917..9af20cecf1 100644
--- a/drivers/event/sw/sw_evdev_selftest.c
+++ b/drivers/event/sw/sw_evdev_selftest.c
@@ -40,6 +40,11 @@ struct test {
        uint32_t service_id;
 };
 
+static int counter_dynfield_offset;
+#define COUNTER_FIELD_TYPE uint8_t
+#define COUNTER_FIELD(mbuf) (*RTE_MBUF_DYNFIELD(mbuf, \
+               counter_dynfield_offset, COUNTER_FIELD_TYPE *))
+
 static struct rte_event release_ev;
 
 static inline struct rte_mbuf *
@@ -2987,8 +2992,8 @@ worker_loopback_worker_fn(void *arg)
                        }
 
                        ev[i].queue_id = 0;
-                       ev[i].mbuf->udata64++;
-                       if (ev[i].mbuf->udata64 != 16) {
+                       COUNTER_FIELD(ev[i].mbuf)++;
+                       if (COUNTER_FIELD(ev[i].mbuf) != 16) {
                                ev[i].op = RTE_EVENT_OP_FORWARD;
                                enqd = rte_event_enqueue_burst(evdev, port,
                                                &ev[i], 1);
@@ -3028,7 +3033,7 @@ worker_loopback_producer_fn(void *arg)
                        m = rte_pktmbuf_alloc(t->mbuf_pool);
                } while (m == NULL);
 
-               m->udata64 = 0;
+               COUNTER_FIELD(m) = 0;
 
                struct rte_event ev = {
                                .op = RTE_EVENT_OP_NEW,
@@ -3061,6 +3066,18 @@ worker_loopback(struct test *t, uint8_t 
disable_implicit_release)
        int err;
        int w_lcore, p_lcore;
 
+       static const struct rte_mbuf_dynfield counter_dynfield_desc = {
+               .name = "rte_event_sw_dynfield_selftest_counter",
+               .size = sizeof(COUNTER_FIELD_TYPE),
+               .align = __alignof__(COUNTER_FIELD_TYPE),
+       };
+       counter_dynfield_offset =
+               rte_mbuf_dynfield_register(&counter_dynfield_desc);
+       if (counter_dynfield_offset < 0) {
+               printf("Error registering mbuf field\n");
+               return -rte_errno;
+       }
+
        if (init(t, 8, 2) < 0 ||
                        create_atomic_qids(t, 8) < 0) {
                printf("%d: Error initializing device\n", __LINE__);
-- 
2.28.0