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ice: use absolute vector ID for VFs

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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>
This commit is contained in:
Mitch Williams 2019-02-08 12:50:41 -08:00 committed by Jeff Kirsher
parent f70b9d5f44
commit f966127a68
1 changed files with 4 additions and 2 deletions
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6
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
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@ -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;