sfc: Reset derived rx_bad_bytes statistic when EF10 MC is rebooted
If the MC reboots then the stats it reports to us will have been
reset. We need to reset ours to get efx_update_diff_stat() working
properly.
(This is a re-run of commit 876be083b669 'sfc: Reset driver's
MAC stats after MC reboot seen'.)
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 357a6e5..80a6eea 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -708,6 +708,11 @@
nic_data->must_restore_filters = true;
nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID;
+ /* MAC statistics have been cleared on the NIC; clear the local
+ * statistic that we update with efx_update_diff_stat().
+ */
+ nic_data->stats[EF10_STAT_rx_bad_bytes] = 0;
+
return -EIO;
}