[PATCH 5.8 198/464] iavf: Fix updating statistics

From: Greg Kroah-Hartman
Date: Mon Aug 17 2020 - 11:29:26 EST


From: Tony Nguyen <anthony.l.nguyen@xxxxxxxxx>

[ Upstream commit 9358076642f14cec8c414850d5a909cafca3a9d6 ]

Commit bac8486116b0 ("iavf: Refactor the watchdog state machine") inverted
the logic for when to update statistics. Statistics should be updated when
no other commands are pending, instead they were only requested when a
command was processed. iavf_request_stats() would see a pending request
and not request statistics to be updated. This caused statistics to never
be updated; fix the logic.

Fixes: bac8486116b0 ("iavf: Refactor the watchdog state machine")
Signed-off-by: Tony Nguyen <anthony.l.nguyen@xxxxxxxxx>
Tested-by: Andrew Bowers <andrewx.bowers@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/intel/iavf/iavf_main.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index bc83e2d999442..d338efe5f3f55 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -1948,7 +1948,10 @@ static void iavf_watchdog_task(struct work_struct *work)
iavf_send_api_ver(adapter);
}
} else {
- if (!iavf_process_aq_command(adapter) &&
+ /* An error will be returned if no commands were
+ * processed; use this opportunity to update stats
+ */
+ if (iavf_process_aq_command(adapter) &&
adapter->state == __IAVF_RUNNING)
iavf_request_stats(adapter);
}
--
2.25.1