diff options
| author | Anjali Singhai Jain <anjali.singhai@intel.com> | 2016-01-15 14:33:16 -0800 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2016-02-17 23:15:17 -0800 |
| commit | a16ae2d59c290b0c545edb9bf41ac9cf88352ee0 (patch) | |
| tree | e0ef682585af316c93a129fd192cb59d4f2adb88 /drivers/net/ethernet/intel/i40e/i40e_txrx.c | |
| parent | 16fd08b85962f6288fe1191856aa98cb0d40aa30 (diff) | |
i40e: Do not disable queues in the Legacy/MSI Interrupt handler
The queues should never be enabled/disabled in the interrupt handler,
ICR0 interrupt enable should be the only thing that needs to be
dynamically changed in the handler.
This patch fixes that. Without this patch X722 platforms were
seeing weird ping timings when in Legacy mode since it takes
a whole lot of time for the HW/FW to re-enable queues.
Change-ID: If065afc45d81c5a19d4a94a00cd5b8f61cefc40c
Signed-off-by: Anjali Singhai Jain <anjali.singhai@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/i40e_txrx.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_txrx.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 25e378c32375..65f2fd80aa79 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -2051,19 +2051,6 @@ tx_only: if (vsi->back->flags & I40E_FLAG_MSIX_ENABLED) { i40e_update_enable_itr(vsi, q_vector); } else { /* Legacy mode */ - struct i40e_hw *hw = &vsi->back->hw; - /* We re-enable the queue 0 cause, but - * don't worry about dynamic_enable - * because we left it on for the other - * possible interrupts during napi - */ - u32 qval = rd32(hw, I40E_QINT_RQCTL(0)) | - I40E_QINT_RQCTL_CAUSE_ENA_MASK; - - wr32(hw, I40E_QINT_RQCTL(0), qval); - qval = rd32(hw, I40E_QINT_TQCTL(0)) | - I40E_QINT_TQCTL_CAUSE_ENA_MASK; - wr32(hw, I40E_QINT_TQCTL(0), qval); i40e_irq_dynamic_enable_icr0(vsi->back, false); } return 0; |