Commit d08a9f6c authored Mar 28, 2017 by Wyborny, Carolyn Committed by Jeff Kirsher Mar 29, 2017

i40e: fix for queue timing delays



This patch adds a delay to Rx queue disables to accommodate HW needs.

v2: Added missing check for disable only, additional details on the
need for the ugly delay and fixed spacing on comment.

Change-ID: I2864ca667ce5dcc2cc44f8718113b719742a46a1
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

parent dab86afd

drivers/net/ethernet/intel/i40e/i40e_main.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -4067,6 +4067,12 @@ static int i40e_vsi_control_rx(struct i40e_vsi *vsi, bool enable)
		}
		}

		/* Due to HW errata, on Rx disable only, the register can indicate done
		* before it really is. Needs 50ms to be sure
		*/
		if (!enable)
		mdelay(50);

		return ret;
		}