igc: Update the MAC reset flow (bb4265ec) · Commits · 戴 / test

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.neftin@intel.com> Tested-by:

Aaron Brown <aaron.f.brown@intel.com> Signed-off-by:

Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/igc/igc_base.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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) {

drivers/net/ethernet/intel/igc/igc_defines.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -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) */

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