From: Mitch Williams <mitch.a.williams@intel.com>
Date: Thu, 8 Aug 2019 07:39:26 -0700
Subject: ice: Always notify FW of VF reset
Patch-mainline: v5.4-rc1
Git-commit: 06914ac20abba21bb810fd96eb85388a402add9b
References: jsc#SLE-7926

The call to ice_dis_vsi_txq() acts as the notification to the firmware
that the VF is being reset. Because of this, we need to make this call
every time we reset, regardless of whatever else we do to stop the Tx
queues.

Without this change, VF resets would fail to complete on interfaces that
were up and running.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c |   25 ++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -1074,9 +1074,16 @@ bool ice_reset_all_vfs(struct ice_pf *pf
 	for (v = 0; v < pf->num_alloc_vfs; v++)
 		ice_trigger_vf_reset(&pf->vf[v], is_vflr);
 
-	for (v = 0; v < pf->num_alloc_vfs; v++)
-		if (test_bit(ICE_VF_STATE_QS_ENA, pf->vf[v].vf_states))
-			ice_dis_vf_qs(&pf->vf[v]);
+	for (v = 0; v < pf->num_alloc_vfs; v++) {
+		struct ice_vsi *vsi;
+
+		vf = &pf->vf[v];
+		vsi = pf->vsi[vf->lan_vsi_idx];
+		if (test_bit(ICE_VF_STATE_QS_ENA, vf->vf_states))
+			ice_dis_vf_qs(vf);
+		ice_dis_vsi_txq(vsi->port_info, vsi->idx, 0, 0, NULL, NULL,
+				NULL, ICE_VF_RESET, vf->vf_id, NULL);
+	}
 
 	/* HW requires some time to make sure it can flush the FIFO for a VF
 	 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
@@ -1171,12 +1178,12 @@ static bool ice_reset_vf(struct ice_vf *
 
 	if (test_bit(ICE_VF_STATE_QS_ENA, vf->vf_states))
 		ice_dis_vf_qs(vf);
-	else
-		/* Call Disable LAN Tx queue AQ call even when queues are not
-		 * enabled. This is needed for successful completion of VFR
-		 */
-		ice_dis_vsi_txq(vsi->port_info, vsi->idx, 0, 0, NULL, NULL,
-				NULL, ICE_VF_RESET, vf->vf_id, NULL);
+
+	/* Call Disable LAN Tx queue AQ whether or not queues are
+	 * enabled. This is needed for successful completion of VFR.
+	 */
+	ice_dis_vsi_txq(vsi->port_info, vsi->idx, 0, 0, NULL, NULL,
+			NULL, ICE_VF_RESET, vf->vf_id, NULL);
 
 	hw = &pf->hw;
 	/* poll VPGEN_VFRSTAT reg to make sure