ice: use absolute vector ID for VFs (f966127a) · Commits · 戴 / test

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>

drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -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;

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