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authorMitch Williams <mitch.a.williams@intel.com>2019-02-08 12:50:41 -0800
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2019-02-25 08:56:02 -0800
commitf966127a68aa805660c05f2a729997adf93d1937 (patch)
tree3686f54789c0feb3ff0e9ec7c16dea85954cc0f4 /drivers/net/ethernet/intel
parentice: check for a leaf node presence (diff)
downloadlinux-dev-f966127a68aa805660c05f2a729997adf93d1937.tar.xz
linux-dev-f966127a68aa805660c05f2a729997adf93d1937.zip
ice: use absolute vector ID for VFs
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>
Diffstat (limited to 'drivers/net/ethernet/intel')
-rw-r--r--drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
index 458e179ea863..57155b4a59dc 100644
--- 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 ice_vf *vf)
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 ice_vf *vf)
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;