[net-next 3/6] igc: Update the MAC reset flow

[Jeff Kirsher]

From: Sasha Neftin <sasha.nef...@intel.com>

Use Device Reset flow instead of Port Reset flow.
This flow performs a reset of the entire controller device,
resulting in a state nearly approximating the state
following a power-up reset or internal PCIe reset,
except for system PCI configuration.

Signed-off-by: Sasha Neftin <sasha.nef...@intel.com>
Tested-by: Aaron Brown <aaron.f.br...@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirs...@intel.com>
---
 drivers/net/ethernet/intel/igc/igc_base.c    | 2 +-
 drivers/net/ethernet/intel/igc/igc_defines.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_base.c 
b/drivers/net/ethernet/intel/igc/igc_base.c
index 59258d791106..46206b3dabfb 100644
--- a/drivers/net/ethernet/intel/igc/igc_base.c
+++ b/drivers/net/ethernet/intel/igc/igc_base.c
@@ -40,7 +40,7 @@ static s32 igc_reset_hw_base(struct igc_hw *hw)
        ctrl = rd32(IGC_CTRL);
 
        hw_dbg("Issuing a global reset to MAC\n");
-       wr32(IGC_CTRL, ctrl | IGC_CTRL_RST);
+       wr32(IGC_CTRL, ctrl | IGC_CTRL_DEV_RST);
 
        ret_val = igc_get_auto_rd_done(hw);
        if (ret_val) {
diff --git a/drivers/net/ethernet/intel/igc/igc_defines.h 
b/drivers/net/ethernet/intel/igc/igc_defines.h
index fc0ccfe38a20..11b99acf4abe 100644
--- a/drivers/net/ethernet/intel/igc/igc_defines.h
+++ b/drivers/net/ethernet/intel/igc/igc_defines.h
@@ -54,7 +54,7 @@
 #define IGC_ERR_SWFW_SYNC              13
 
 /* Device Control */
-#define IGC_CTRL_RST           0x04000000  /* Global reset */
+#define IGC_CTRL_DEV_RST       0x20000000  /* Device reset */
 
 #define IGC_CTRL_PHY_RST       0x80000000  /* PHY Reset */
 #define IGC_CTRL_SLU           0x00000040  /* Set link up (Force Link) */
-- 
2.21.0