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path: root/drivers/net/ethernet/sfc/tx.c
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Diffstat (limited to 'drivers/net/ethernet/sfc/tx.c')
-rw-r--r--drivers/net/ethernet/sfc/tx.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index 04d7f41d7ed9..8aafc54a4684 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -535,6 +535,44 @@ netdev_tx_t efx_hard_start_xmit(struct sk_buff *skb,
return efx_enqueue_skb(tx_queue, skb);
}
+void efx_xmit_done_single(struct efx_tx_queue *tx_queue)
+{
+ unsigned int pkts_compl = 0, bytes_compl = 0;
+ unsigned int read_ptr;
+ bool finished = false;
+
+ read_ptr = tx_queue->read_count & tx_queue->ptr_mask;
+
+ while (!finished) {
+ struct efx_tx_buffer *buffer = &tx_queue->buffer[read_ptr];
+
+ if (!efx_tx_buffer_in_use(buffer)) {
+ struct efx_nic *efx = tx_queue->efx;
+
+ netif_err(efx, hw, efx->net_dev,
+ "TX queue %d spurious single TX completion\n",
+ tx_queue->queue);
+ efx_schedule_reset(efx, RESET_TYPE_TX_SKIP);
+ return;
+ }
+
+ /* Need to check the flag before dequeueing. */
+ if (buffer->flags & EFX_TX_BUF_SKB)
+ finished = true;
+ efx_dequeue_buffer(tx_queue, buffer, &pkts_compl, &bytes_compl);
+
+ ++tx_queue->read_count;
+ read_ptr = tx_queue->read_count & tx_queue->ptr_mask;
+ }
+
+ tx_queue->pkts_compl += pkts_compl;
+ tx_queue->bytes_compl += bytes_compl;
+
+ EFX_WARN_ON_PARANOID(pkts_compl != 1);
+
+ efx_xmit_done_check_empty(tx_queue);
+}
+
void efx_init_tx_queue_core_txq(struct efx_tx_queue *tx_queue)
{
struct efx_nic *efx = tx_queue->efx;