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Commit 37a5d163 authored by Shota Suzuki's avatar Shota Suzuki Committed by Jeff Kirsher
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igb: Unpair the queues when changing the number of queues 



By the commit 72ddef05 ("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: default avatarShota Suzuki <suzuki_shota_t3@lab.ntt.co.jp>
Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent ceb27759

drivers/net/ethernet/intel/igb/igb_main.c

+2 −0
Original line number Diff line number Diff line
@@ -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;

	}

}