diff options
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_txrx.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 9 |
2 files changed, 0 insertions, 18 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index c5cd233c8fee..d6d352a6e6ea 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -1407,15 +1407,6 @@ bool i40e_alloc_rx_buffers(struct i40e_ring *rx_ring, u16 cleaned_count) union i40e_rx_desc *rx_desc; struct i40e_rx_buffer *bi; - /* Hardware only fetches new descriptors in cache lines of 8, - * essentially ignoring the lower 3 bits of the tail register. We want - * to ensure our tail writes are aligned to avoid unnecessary work. We - * can't simply round down the cleaned count, since we might fail to - * allocate some buffers. What we really want is to ensure that - * next_to_used + cleaned_count produces an aligned value. - */ - cleaned_count -= (ntu + cleaned_count) & 0x7; - /* do nothing if no valid netdev defined */ if (!rx_ring->netdev || !cleaned_count) return false; diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c index 6806ada11490..fe817e2b6fef 100644 --- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c @@ -711,15 +711,6 @@ bool i40evf_alloc_rx_buffers(struct i40e_ring *rx_ring, u16 cleaned_count) union i40e_rx_desc *rx_desc; struct i40e_rx_buffer *bi; - /* Hardware only fetches new descriptors in cache lines of 8, - * essentially ignoring the lower 3 bits of the tail register. We want - * to ensure our tail writes are aligned to avoid unnecessary work. We - * can't simply round down the cleaned count, since we might fail to - * allocate some buffers. What we really want is to ensure that - * next_to_used + cleaned_count produces an aligned value. - */ - cleaned_count -= (ntu + cleaned_count) & 0x7; - /* do nothing if no valid netdev defined */ if (!rx_ring->netdev || !cleaned_count) return false; |