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From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: dev@dpdk.org
Cc: thomas.monjalon@6wind.com, bruce.richardson@intel.com,
harry.van.haaren@intel.com, hemant.agrawal@nxp.com, gage.eads@intel.com,
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Jerin Jacob <jerin.jacob@caviumnetworks.com>
Date: Fri, 3 Mar 2017 22:58:00 +0530
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Subject: [dpdk-dev] [PATCH 18/39] event/octeontx: add support worker enqueue
function
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Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
---
drivers/event/octeontx/ssovf_evdev.h | 4 ++
drivers/event/octeontx/ssovf_worker.c | 116 ++++++++++++++++++++++++++++++++++
2 files changed, 120 insertions(+)
diff --git a/drivers/event/octeontx/ssovf_evdev.h b/drivers/event/octeontx/ssovf_evdev.h
index 16846b8..fac42f5 100644
--- a/drivers/event/octeontx/ssovf_evdev.h
+++ b/drivers/event/octeontx/ssovf_evdev.h
@@ -187,4 +187,8 @@ ssovf_pmd_priv(const struct rte_eventdev *eventdev)
return eventdev->data->dev_private;
}
+uint16_t ssows_enq(void *port, const struct rte_event *ev);
+uint16_t ssows_enq_burst(void *port,
+ const struct rte_event ev[], uint16_t nb_events);
+
#endif /* __SSOVF_EVDEV_H__ */
diff --git a/drivers/event/octeontx/ssovf_worker.c b/drivers/event/octeontx/ssovf_worker.c
index 8a96076..7ec78b4 100644
--- a/drivers/event/octeontx/ssovf_worker.c
+++ b/drivers/event/octeontx/ssovf_worker.c
@@ -138,3 +138,119 @@ ssows_swtag_wait(struct ssows *ws)
;
}
+static force_inline void
+ssows_new_event(struct ssows *ws, const struct rte_event *ev)
+{
+ const uint64_t event_ptr = ev->u64;
+ const uint32_t tag = (uint32_t)ev->event;
+ const uint8_t new_tt = ev->sched_type;
+ const uint8_t grp = ev->queue_id;
+
+ ssows_add_work(ws, event_ptr, tag, new_tt, grp);
+}
+
+static force_inline void
+ssows_fwd_swtag(struct ssows *ws, const struct rte_event *ev, const uint8_t grp)
+{
+ const uint8_t cur_tt = ws->cur_tt;
+ const uint8_t new_tt = ev->sched_type;
+ const uint32_t tag = (uint32_t)ev->event;
+ /*
+ * cur_tt/new_tt SSO_SYNC_ORDERED SSO_SYNC_ATOMIC SSO_SYNC_UNTAGGED
+ *
+ * SSO_SYNC_ORDERED norm norm untag
+ * SSO_SYNC_ATOMIC norm norm untag
+ * SSO_SYNC_UNTAGGED full full NOOP
+ */
+ if (unlikely(cur_tt == SSO_SYNC_UNTAGGED)) {
+ if (new_tt != SSO_SYNC_UNTAGGED) {
+ ssows_swtag_full(ws, ev->u64, tag,
+ new_tt, grp);
+ }
+ } else {
+ if (likely(new_tt != SSO_SYNC_UNTAGGED))
+ ssows_swtag_norm(ws, tag, new_tt);
+ else
+ ssows_swtag_untag(ws);
+ }
+ ws->swtag_req = 1;
+}
+
+#define OCT_EVENT_TYPE_GRP_FWD (RTE_EVENT_TYPE_MAX - 1)
+
+static force_inline void
+ssows_fwd_group(struct ssows *ws, const struct rte_event *ev, const uint8_t grp)
+{
+ const uint64_t event_ptr = ev->u64;
+ const uint32_t tag = (uint32_t)ev->event;
+ const uint8_t cur_tt = ws->cur_tt;
+ const uint8_t new_tt = ev->sched_type;
+
+ if (cur_tt == SSO_SYNC_ORDERED) {
+ /* Create unique tag based on custom event type and new grp */
+ uint32_t newtag = OCT_EVENT_TYPE_GRP_FWD << 28;
+
+ newtag |= grp << 20;
+ newtag |= tag;
+ ssows_swtag_norm(ws, newtag, SSO_SYNC_ATOMIC);
+ rte_smp_wmb();
+ ssows_swtag_wait(ws);
+ } else {
+ rte_smp_wmb();
+ }
+ ssows_add_work(ws, event_ptr, tag, new_tt, grp);
+}
+
+static force_inline void
+ssows_forward_event(struct ssows *ws, const struct rte_event *ev)
+{
+ const uint8_t grp = ev->queue_id;
+
+ /* Group hasn't changed, Use SWTAG to forward the event */
+ if (ws->cur_grp == grp)
+ ssows_fwd_swtag(ws, ev, grp);
+ else
+ /*
+ * Group has been changed for group based work pipelining,
+ * Use deschedule/add_work operation to transfer the event to
+ * new group/core
+ */
+ ssows_fwd_group(ws, ev, grp);
+}
+
+static force_inline void
+ssows_release_event(struct ssows *ws)
+{
+ if (likely(ws->cur_tt != SSO_SYNC_UNTAGGED))
+ ssows_swtag_untag(ws);
+}
+
+force_inline uint16_t __hot
+ssows_enq(void *port, const struct rte_event *ev)
+{
+ struct ssows *ws = port;
+ uint16_t ret = 1;
+
+ switch (ev->op) {
+ case RTE_EVENT_OP_NEW:
+ ssows_new_event(ws, ev);
+ break;
+ case RTE_EVENT_OP_FORWARD:
+ ssows_forward_event(ws, ev);
+ break;
+ case RTE_EVENT_OP_RELEASE:
+ ssows_release_event(ws);
+ break;
+ default:
+ ret = 0;
+ }
+ return ret;
+}
+
+uint16_t __hot
+ssows_enq_burst(void *port, const struct rte_event ev[], uint16_t nb_events)
+{
+ RTE_SET_USED(nb_events);
+ return ssows_enq(port, ev);
+}
+
--
2.5.5