From: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Date: Fri, 29 Mar 2019 19:48:50 +0000 (-0700)
Subject: iavf: Limiting RSS queues to CPUs
X-Git-Tag: microblaze-v5.4-rc1~347^2~372^2~11
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=6b6b49b56a6c4333509f15d8861ee6b2c6878bd2;p=linux-2.6-microblaze.git

iavf: Limiting RSS queues to CPUs

Limiting RSS queues number to online CPUs number in order to
avoid issues with creating misconfigured RSS queues.

Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---

diff --git a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
index e64751da0921..357c74bc3265 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
@@ -416,7 +416,7 @@ int iavf_request_queues(struct iavf_adapter *adapter, int num)
 		return -EBUSY;
 	}
 
-	vfres.num_queue_pairs = num;
+	vfres.num_queue_pairs = min_t(int, num, num_online_cpus());
 
 	adapter->current_op = VIRTCHNL_OP_REQUEST_QUEUES;
 	adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED;