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i40e: check MAC type before any REG access 

We need to check if we are dealing with the correct MAC type before we
try to read anything from the registers.

Change-Id: I3989516999d06c3009e87d6a2eafc20af305c5c2
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Shannon Nelson 2013-12-11 08:17:14 +00:00 committed by Jeff Kirsher
parent 5f9116ac4e
commit af89d26c07
1 changed files with 8 additions and 8 deletions
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16
drivers/net/ethernet/intel/i40e/i40e_common.c
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@ -180,14 +180,6 @@ i40e_status i40e_init_shared_code(struct i40e_hw *hw)
i40e_status status = 0;
u32 reg;
hw->phy.get_link_info = true;
/* Determine port number */
reg = rd32(hw, I40E_PFGEN_PORTNUM);
reg = ((reg & I40E_PFGEN_PORTNUM_PORT_NUM_MASK) >>
I40E_PFGEN_PORTNUM_PORT_NUM_SHIFT);
hw->port = (u8)reg;
i40e_set_mac_type(hw);
switch (hw->mac.type) {
@ -198,6 +190,14 @@ i40e_status i40e_init_shared_code(struct i40e_hw *hw)
break;
}
hw->phy.get_link_info = true;
/* Determine port number */
reg = rd32(hw, I40E_PFGEN_PORTNUM);
reg = ((reg & I40E_PFGEN_PORTNUM_PORT_NUM_MASK) >>
I40E_PFGEN_PORTNUM_PORT_NUM_SHIFT);
hw->port = (u8)reg;
/* Determine the PF number based on the PCI fn */
reg = rd32(hw, I40E_GLPCI_CAPSUP);
if (reg & I40E_GLPCI_CAPSUP_ARI_EN_MASK)