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authorKamil Krawczyk <kamil.krawczyk@intel.com>2013-12-18 13:45:46 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2014-01-07 21:50:12 -0800
commit071b8de9820fb622c1fd29775f3a47b99db312ad (patch)
treea0381bd4ad353596fae14854022ede6bbd3f4de0 /drivers/net/ethernet/intel/i40e/i40e_adminq.c
parentc354229fc0f2c441aad7506dc4748cc9e9675767 (diff)
i40e: remove redundant AQ enable
The admin queue length register is updated in config_a<sq|rq>_regs functions. We should not update it again, as we will trigger firmware to init the AQ again. In this case firmware will lose the information about the AQ Rx tail position and will see Rx queue as full (no free desc for FW to use). Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_adminq.c')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_adminq.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
index 18a768f39d4..c87dc15372c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
@@ -957,20 +957,14 @@ clean_arq_element_out:
static void i40e_resume_aq(struct i40e_hw *hw)
{
- u32 reg = 0;
-
/* Registers are reset after PF reset */
hw->aq.asq.next_to_use = 0;
hw->aq.asq.next_to_clean = 0;
i40e_config_asq_regs(hw);
- reg = hw->aq.num_asq_entries | I40E_PF_ATQLEN_ATQENABLE_MASK;
- wr32(hw, hw->aq.asq.len, reg);
hw->aq.arq.next_to_use = 0;
hw->aq.arq.next_to_clean = 0;
i40e_config_arq_regs(hw);
- reg = hw->aq.num_arq_entries | I40E_PF_ATQLEN_ATQENABLE_MASK;
- wr32(hw, hw->aq.arq.len, reg);
}