diff options
| author | Carolyn Wyborny <carolyn.wyborny@intel.com> | 2016-08-04 11:37:03 -0700 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2016-08-19 21:24:28 -0700 |
| commit | ffeac83685facb6f0829b898d567056eae8097f8 (patch) | |
| tree | 089e45cd9cf36541d941154cbcbb8759795bf664 /drivers/net/ethernet/intel/i40e | |
| parent | fe458e50711b8a3dc773a6aa1f80b477991c8bbe (diff) | |
i40e: refactor tail_bump check
This patch refactors tail bump check.
Change-ID: Ide0e19171d67d90cb2b06b8dcd4fa791ae120160
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_txrx.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index df7ecc9578c9..f8d66236fcbf 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -2840,10 +2840,9 @@ static inline void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb, I40E_TXD_QW1_CMD_SHIFT); /* notify HW of packet */ - if (!tail_bump) + if (!tail_bump) { prefetchw(tx_desc + 1); - - if (tail_bump) { + } else { /* Force memory writes to complete before letting h/w * know there are new descriptors to fetch. (Only * applicable for weak-ordered memory model archs, @@ -2852,7 +2851,6 @@ static inline void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb, wmb(); writel(i, tx_ring->tail); } - return; dma_error: |