[dpdk-dev] [PATCH v3 40/42] event/octeontx2: add even timer adapter start and stop

[pbhagavatula]

From: Pavan Nikhilesh <pbhagavat...@marvell.com>

Add event timer adapter start and stop functions.

Signed-off-by: Pavan Nikhilesh <pbhagavat...@marvell.com>
---
 drivers/event/octeontx2/otx2_tim_evdev.c | 66 ++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/drivers/event/octeontx2/otx2_tim_evdev.c 
b/drivers/event/octeontx2/otx2_tim_evdev.c
index af68254f5..cd9a679fb 100644
--- a/drivers/event/octeontx2/otx2_tim_evdev.c
+++ b/drivers/event/octeontx2/otx2_tim_evdev.c
@@ -377,6 +377,69 @@ otx2_tim_ring_create(struct rte_event_timer_adapter *adptr)
        return rc;
 }
 
+static int
+otx2_tim_ring_start(const struct rte_event_timer_adapter *adptr)
+{
+       struct otx2_tim_ring *tim_ring = adptr->data->adapter_priv;
+       struct otx2_tim_evdev *dev = tim_priv_get();
+       struct tim_enable_rsp *rsp;
+       struct tim_ring_req *req;
+       int rc;
+
+       if (dev == NULL)
+               return -ENODEV;
+
+       req = otx2_mbox_alloc_msg_tim_enable_ring(dev->mbox);
+       req->ring = tim_ring->ring_id;
+
+       rc = otx2_mbox_process_msg(dev->mbox, (void **)&rsp);
+       if (rc < 0) {
+               tim_err_desc(rc);
+               goto fail;
+       }
+#ifdef RTE_ARM_EAL_RDTSC_USE_PMU
+       uint64_t tenns_stmp, tenns_diff;
+       uint64_t pmu_stmp;
+
+       pmu_stmp = rte_rdtsc();
+       asm volatile("mrs %0, cntvct_el0" : "=r" (tenns_stmp));
+
+       tenns_diff = tenns_stmp - rsp->timestarted;
+       pmu_stmp = pmu_stmp - (NSEC2TICK(tenns_diff  * 10, rte_get_timer_hz()));
+       tim_ring->ring_start_cyc = pmu_stmp;
+#else
+       tim_ring->ring_start_cyc = rsp->timestarted;
+#endif
+       tim_ring->tck_int = NSEC2TICK(tim_ring->tck_nsec, rte_get_timer_hz());
+       tim_ring->fast_div = rte_reciprocal_value_u64(tim_ring->tck_int);
+
+fail:
+       return rc;
+}
+
+static int
+otx2_tim_ring_stop(const struct rte_event_timer_adapter *adptr)
+{
+       struct otx2_tim_ring *tim_ring = adptr->data->adapter_priv;
+       struct otx2_tim_evdev *dev = tim_priv_get();
+       struct tim_ring_req *req;
+       int rc;
+
+       if (dev == NULL)
+               return -ENODEV;
+
+       req = otx2_mbox_alloc_msg_tim_disable_ring(dev->mbox);
+       req->ring = tim_ring->ring_id;
+
+       rc = otx2_mbox_process(dev->mbox);
+       if (rc < 0) {
+               tim_err_desc(rc);
+               rc = -EBUSY;
+       }
+
+       return rc;
+}
+
 static int
 otx2_tim_ring_free(struct rte_event_timer_adapter *adptr)
 {
@@ -438,11 +501,14 @@ otx2_tim_caps_get(const struct rte_eventdev *evdev, 
uint64_t flags,
        struct otx2_tim_evdev *dev = tim_priv_get();
 
        RTE_SET_USED(flags);
+
        if (dev == NULL)
                return -ENODEV;
 
        otx2_tim_ops.init = otx2_tim_ring_create;
        otx2_tim_ops.uninit = otx2_tim_ring_free;
+       otx2_tim_ops.start = otx2_tim_ring_start;
+       otx2_tim_ops.stop = otx2_tim_ring_stop;
        otx2_tim_ops.get_info   = otx2_tim_ring_info_get;
 
        if (dev->enable_stats) {
-- 
2.22.0