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authorSylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>2022-10-31 15:00:28 +0300
committerTony Nguyen <anthony.l.nguyen@intel.com>2022-12-05 19:30:51 +0300
commit08501970472077ed5de346ad89943a37d1692e9b (patch)
treecc831bf66af5a9b2b4e1e131e7d4c75b3dfd0345 /drivers/net
parent82e0572b23029b380464fa9fdc125db9c1506d0a (diff)
downloadlinux-08501970472077ed5de346ad89943a37d1692e9b.tar.xz
i40e: Fix for VF MAC address 0
After spawning max VFs on a PF, some VFs were not getting resources and their MAC addresses were 0. This was caused by PF sleeping before flushing HW registers which caused VIRTCHNL_VFR_VFACTIVE to not be set in time for VF. Fix by adding a sleep after hw flush. Fixes: e4b433f4a741 ("i40e: reset all VFs in parallel when rebuilding PF") Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com> Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com> Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 72ddcefc45b1..635f93d60318 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -1578,6 +1578,7 @@ bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
i40e_cleanup_reset_vf(vf);
i40e_flush(hw);
+ usleep_range(20000, 40000);
clear_bit(I40E_VF_STATE_RESETTING, &vf->vf_states);
return true;
@@ -1701,6 +1702,7 @@ bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
}
i40e_flush(hw);
+ usleep_range(20000, 40000);
clear_bit(__I40E_VF_DISABLE, pf->state);
return true;