event/octeontx2: fix unconditional Tx flush

[dpdk.git] / drivers / event / octeontx2 / otx2_worker.h

diff --git a/drivers/event/octeontx2/otx2_worker.h b/drivers/event/octeontx2/otx2_worker.h
index 3efd3ba..0a7d667 100644 (file)
--- a/drivers/event/octeontx2/otx2_worker.h
+++ b/drivers/event/octeontx2/otx2_worker.h
@@ -198,6 +198,10 @@ otx2_ssogws_swtag_untag(struct otx2_ssogws *ws)
 static __rte_always_inline void
 otx2_ssogws_swtag_flush(struct otx2_ssogws *ws)
 {
+       if (OTX2_SSOW_TT_FROM_TAG(otx2_read64(ws->tag_op)) == SSO_TT_EMPTY) {
+               ws->cur_tt = SSO_SYNC_EMPTY;
+               return;
+       }
        otx2_write64(0, ws->swtag_flush_op);
        ws->cur_tt = SSO_SYNC_EMPTY;
 }
@@ -272,13 +276,14 @@ otx2_ssogws_prepare_pkt(const struct otx2_eth_txq *txq, struct rte_mbuf *m,
 }
 
 static __rte_always_inline uint16_t
-otx2_ssogws_event_tx(struct otx2_ssogws *ws, struct rte_event ev[],
-                    uint64_t *cmd, const uint64_t
-                    txq_data[][RTE_MAX_QUEUES_PER_PORT],
+otx2_ssogws_event_tx(struct otx2_ssogws *ws, struct rte_event *ev,
+                    uint64_t *cmd,
+                    const uint64_t txq_data[][RTE_MAX_QUEUES_PER_PORT],
                     const uint32_t flags)
 {
-       struct rte_mbuf *m = ev[0].mbuf;
+       struct rte_mbuf *m = ev->mbuf;
        const struct otx2_eth_txq *txq;
+       uint16_t ref_cnt = m->refcnt;
 
        if ((flags & NIX_TX_OFFLOAD_SECURITY_F) &&
            (m->ol_flags & PKT_TX_SEC_OFFLOAD)) {
@@ -329,7 +334,12 @@ otx2_ssogws_event_tx(struct otx2_ssogws *ws, struct rte_event ev[],
                }
        }
 
-       otx2_write64(0, ws->swtag_flush_op);
+       if (flags & NIX_TX_OFFLOAD_MBUF_NOFF_F) {
+               if (ref_cnt > 1)
+                       return 1;
+       }
+
+       otx2_ssogws_swtag_flush(ws);
 
        return 1;
 }