Incorrect placement of prefetch in Tx path is causing
a performance drop of around ~2% on AMD platform.
Fixes: 2ea6f76aff40 ("qede: add core driver")
Cc: [email protected]
Signed-off-by: Shahed Shaikh <[email protected]>
---
drivers/net/qede/qede_rxtx.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/net/qede/qede_rxtx.c b/drivers/net/qede/qede_rxtx.c
index 684c4ae..eda19b2 100644
--- a/drivers/net/qede/qede_rxtx.c
+++ b/drivers/net/qede/qede_rxtx.c
@@ -2181,7 +2181,6 @@ qede_xmit_pkts(void *p_txq, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts)
txq->nb_tx_avail -= bd1->data.nbds;
txq->sw_tx_prod++;
- rte_prefetch0(txq->sw_tx_ring[TX_PROD(txq)].mbuf);
bd_prod =
rte_cpu_to_le_16(ecore_chain_get_prod_idx(&txq->tx_pbl));
#ifdef RTE_LIBRTE_QEDE_DEBUG_TX
--
2.7.4
