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netdev: Set the default number of queues at removal from the database

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Expected behavior for attribute removal from the database is
resetting it to default value. Currently this doesn't work for
n_rxq/n_txq options of pmd netdevs (last requested value used):

	# ovs-vsctl set interface dpdk0 options:n_rxq=4
	# ovs-vsctl remove interface dpdk0 options n_rxq
	# ovs-appctl dpif/show | grep dpdk0
	  <...>
	  dpdk0 1/1: (dpdk: configured_rx_queues=4, <...> \
	                    requested_rx_queues=4,  <...>)

Fix that by using NR_QUEUE or 1 as a default value for 'smap_get_int'.

Fixes: a14b8947fd ("dpif-netdev: Allow different numbers of
                      rx queues for different ports.")
Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Tested-by: Ian Stokes <ian.stokes@intel.com>
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
This commit is contained in:
Ilya Maximets
2016-12-08 11:55:31 +03:00
committed by Daniele Di Proietto
parent b38155311b
commit 2a21e75796
3 changed files with 10 additions and 3 deletions
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4
lib/netdev-dummy.c
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@@ -868,8 +868,8 @@ netdev_dummy_set_config(struct netdev *netdev_, const struct smap *args)
goto exit;
}
new_n_rxq = MAX(smap_get_int(args, "n_rxq", netdev->requested_n_rxq), 1);
new_n_txq = MAX(smap_get_int(args, "n_txq", netdev->requested_n_txq), 1);
new_n_rxq = MAX(smap_get_int(args, "n_rxq", 1), 1);
new_n_txq = MAX(smap_get_int(args, "n_txq", 1), 1);
new_numa_id = smap_get_int(args, "numa_id", 0);
if (new_n_rxq != netdev->requested_n_rxq
|| new_n_txq != netdev->requested_n_txq