[PATCH v1 1/5] net/i40e: remove redundant Dtype initialization

[Feifei Wang <feifei.wang2@arm.com>]

The Dtype field is set to 0xf by the NIC to indicate DMA completion, only
after the CPU requests to be informed by setting the RS bit. Hence, it is
not required to set Dtype to 0xf during initialization.

Not setting the Dtype field to 0xf helps to know that a given descriptor
is not sent to the NIC yet after initialization.

Suggested-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
---
 drivers/net/i40e/i40e_rxtx.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 25a28ecea2..745734d5e4 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -2767,10 +2767,6 @@ i40e_reset_tx_queue(struct i40e_tx_queue *txq)
 
 	prev = (uint16_t)(txq->nb_tx_desc - 1);
 	for (i = 0; i < txq->nb_tx_desc; i++) {
-		volatile struct i40e_tx_desc *txd = &txq->tx_ring[i];
-
-		txd->cmd_type_offset_bsz =
-			rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE);
 		txe[i].mbuf =  NULL;
 		txe[i].last_id = i;
 		txe[prev].next_id = i;
-- 
2.25.1