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| author | Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com> | 2022-10-31 13:00:28 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-14 11:32:02 +0100 |
| commit | 8329b65e34ef01dfdbd0ba28fd55fd46d0241042 (patch) | |
| tree | fc25d705f48b4a19793aaab54f04f5bc63aa215b | |
| parent | 215f3ac53b18515aea136aa6934ff98c271ed322 (diff) | |
| download | linux-stable-8329b65e34ef01dfdbd0ba28fd55fd46d0241042.tar.gz linux-stable-8329b65e34ef01dfdbd0ba28fd55fd46d0241042.tar.bz2 linux-stable-8329b65e34ef01dfdbd0ba28fd55fd46d0241042.zip | |
i40e: Fix for VF MAC address 0
[ Upstream commit 08501970472077ed5de346ad89943a37d1692e9b ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 2 |
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 381b28a08746..bb2a79b70c3a 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -1525,6 +1525,7 @@ 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; @@ -1648,6 +1649,7 @@ 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; |