From 37a5d163fb447b39f7960d0534de30e88ad395bb Mon Sep 17 00:00:00 2001 From: Shota Suzuki Date: Fri, 11 Dec 2015 18:44:00 +0900 Subject: [PATCH] igb: Unpair the queues when changing the number of queues By the commit 72ddef0506da ("igb: Fix oops caused by missing queue pairing"), the IGB_FLAG_QUEUE_PAIRS flag can now be set when changing the number of queues by "ethtool -L", but it is never cleared unless the igb driver is reloaded. This patch clears it if queue pairing becomes unnecessary as a result of "ethtool -L". Signed-off-by: Shota Suzuki Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/igb/igb_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index eb24b403534f..85c47aa16a31 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -2931,6 +2931,8 @@ void igb_set_flag_queue_pairs(struct igb_adapter *adapter, */ if (adapter->rss_queues > (max_rss_queues / 2)) adapter->flags |= IGB_FLAG_QUEUE_PAIRS; + else + adapter->flags &= ~IGB_FLAG_QUEUE_PAIRS; break; } } -- 2.39.2