I've got reports that the Intel I-218V NIC in Intel NUC5i5RYH systems used
as a PTP slave experiences random ~10 hour clock jumps, which are resolved
if the same workaround for the 82574 and 82583 is employed. Switching from
an if to a select, because the list of NIC types could well grow further
and we'd already have to wrap the conditionals.
CC: Jeff Kirsher <jeffrey.t.kirs...@intel.com>
CC: intel-wired-...@lists.osuosl.org
CC: netdev@vger.kernel.org
Signed-off-by: Jarod Wilson <ja...@redhat.com>
---
drivers/net/ethernet/intel/e1000e/netdev.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c
b/drivers/net/ethernet/intel/e1000e/netdev.c
index 2b2e2f8..866fea0 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -4335,7 +4335,10 @@ static cycle_t e1000e_cyclecounter_read(const struct
cyclecounter *cc)
systim = (cycle_t)systimel;
systim |= (cycle_t)systimeh << 32;
- if ((hw->mac.type == e1000_82574) || (hw->mac.type == e1000_82583)) {
+ switch (hw->mac.type) {
+ case e1000_82574:
+ case e1000_82583:
+ case e1000_pch_lpt:
u64 time_delta, rem, temp;
u32 incvalue;
int i;
@@ -4360,6 +4363,9 @@ static cycle_t e1000e_cyclecounter_read(const struct
cyclecounter *cc)
(rem == 0))
break;
}
+ break;
+ default:
+ break;
}
return systim;
}
--
1.8.3.1
