[dpdk-dev,v4,3/6] vmxnet3: cleanup txNumDeferred usage
Commit Message
Signed-off-by: Yong Wang <yongwang@vmware.com>
---
drivers/net/vmxnet3/vmxnet3_rxtx.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
@@ -332,6 +332,8 @@ vmxnet3_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_tx;
vmxnet3_tx_queue_t *txq = tx_queue;
struct vmxnet3_hw *hw = txq->hw;
+ Vmxnet3_TxQueueCtrl *txq_ctrl = &txq->shared->ctrl;
+ uint32_t deferred = rte_le_to_cpu_32(txq_ctrl->txNumDeferred);
if (unlikely(txq->stopped)) {
PMD_TX_LOG(DEBUG, "Tx queue is stopped.");
@@ -419,15 +421,14 @@ vmxnet3_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
rte_compiler_barrier();
gdesc->dword[2] ^= VMXNET3_TXD_GEN;
- txq->shared->ctrl.txNumDeferred++;
+ txq_ctrl->txNumDeferred = rte_cpu_to_le_32(++deferred);
nb_tx++;
}
- PMD_TX_LOG(DEBUG, "vmxnet3 txThreshold: %u", txq->shared->ctrl.txThreshold);
+ PMD_TX_LOG(DEBUG, "vmxnet3 txThreshold: %u", rte_le_to_cpu_32(txq_ctrl->txThreshold));
- if (txq->shared->ctrl.txNumDeferred >= txq->shared->ctrl.txThreshold) {
-
- txq->shared->ctrl.txNumDeferred = 0;
+ if (deferred >= rte_le_to_cpu_32(txq_ctrl->txThreshold)) {
+ txq_ctrl->txNumDeferred = 0;
/* Notify vSwitch that packets are available. */
VMXNET3_WRITE_BAR0_REG(hw, (VMXNET3_REG_TXPROD + txq->queue_id * VMXNET3_REG_ALIGN),
txq->cmd_ring.next2fill);