From: Thomas Falcon Date: Fri, 9 Feb 2018 17:41:09 +0000 (-0600) Subject: ibmvnic: Reset long term map ID counter X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=faefaa97215a0c05105d7ae180fe1a3b5979ad1f;p=openwrt%2Fstaging%2Fblogic.git ibmvnic: Reset long term map ID counter When allocating RX or TX buffer pools, the driver needs to provide a unique mapping ID to firmware for each pool. This value is assigned using a counter which is incremented after a new pool is created. The ID can be an integer ranging from 1-255. When migrating to a device that requests a different number of queues, this value was not being reset properly. As a result, after enough migrations, the counter exceeded the upper bound and pool creation failed. This is fixed by resetting the counter to one in this case. Signed-off-by: Thomas Falcon Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index dd4a2946e1da..ce127a72cda2 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -1644,6 +1644,7 @@ static int do_reset(struct ibmvnic_adapter *adapter, return rc; } else if (adapter->req_rx_queues != old_num_rx_queues || adapter->req_tx_queues != old_num_tx_queues) { + adapter->map_id = 1; release_rx_pools(adapter); release_tx_pools(adapter); init_rx_pools(netdev);