From: Mitch Williams <mitch.a.williams@intel.com>
Date: Fri, 8 Feb 2019 12:50:41 -0800
Subject: ice: use absolute vector ID for VFs
Patch-mainline: v5.1-rc1
Git-commit: f966127a68aa805660c05f2a729997adf93d1937
References: jsc#SLE-4803
When the PF driver sets up the VF MSI-X vector allocation, it needs to
use the hardware absolute vector ID, not the per-PF vector ID. Without
this change we see (apparent) TX hangs when using VFs on multiple PFs.
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@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 | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -173,7 +173,8 @@ static void ice_dis_vf_mappings(struct i
wr32(hw, VPINT_ALLOC(vf->vf_id), 0);
wr32(hw, VPINT_ALLOC_PCI(vf->vf_id), 0);
- first = vf->first_vector_idx;
+ first = vf->first_vector_idx +
+ hw->func_caps.common_cap.msix_vector_first_id;
last = first + pf->num_vf_msix - 1;
for (v = first; v <= last; v++) {
u32 reg;
@@ -523,7 +524,8 @@ static void ice_ena_vf_mappings(struct i
hw = &pf->hw;
vsi = pf->vsi[vf->lan_vsi_idx];
- first = vf->first_vector_idx;
+ first = vf->first_vector_idx +
+ hw->func_caps.common_cap.msix_vector_first_id;
last = (first + pf->num_vf_msix) - 1;
abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;