fm10k: Fix handling of NAPI budget when multiple queues are enabled per vector
This patch corrects an issue in which the polling routine would increase
the budget for Rx to at least 1 per queue if multiple queues were present.
This would result in Rx packets being processed when the budget was 0 which
is meant to indicate that no Rx can be handled.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
index e76a44c..746a198 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
@@ -1428,6 +1428,10 @@
fm10k_for_each_ring(ring, q_vector->tx)
clean_complete &= fm10k_clean_tx_irq(q_vector, ring);
+ /* Handle case where we are called by netpoll with a budget of 0 */
+ if (budget <= 0)
+ return budget;
+
/* attempt to distribute budget to each queue fairly, but don't
* allow the budget to go below 1 because we'll exit polling
*/