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i40e: avoid unnecessary register read 

We don't need to read the base VF id. It's already stashed in the HW
struct.

Change-Id: Ib81e2f76fc40b12c966e014a856b481912cafefc
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
hifive-unleashed-5.1
Mitch Williams 2013-11-28 06:39:36 +00:00 committed by Jeff Kirsher
parent 1b60f3c416
commit b141d6196c
1 changed files with 1 additions and 2 deletions
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3
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
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@ -600,8 +600,7 @@ static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
int vf_abs_id, i;
u32 reg;
reg = rd32(hw, I40E_PF_VT_PFALLOC);
vf_abs_id = vf->vf_id + (reg & I40E_PF_VT_PFALLOC_FIRSTVF_MASK);
vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
wr32(hw, I40E_PF_PCI_CIAA,
VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));