ehea: New method to determine number of available ports
Count OFDT nodes to determine the number of available ports instead of using the possibly outdated value from the hypervisor Signed-off-by: Thomas Klein <tklein@de.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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@ -2269,6 +2269,8 @@ static void ehea_tx_watchdog(struct net_device *dev)
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int ehea_sense_adapter_attr(struct ehea_adapter *adapter)
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{
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struct hcp_query_ehea *cb;
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struct device_node *lhea_dn = NULL;
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struct device_node *eth_dn = NULL;
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u64 hret;
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int ret;
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@ -2285,7 +2287,18 @@ int ehea_sense_adapter_attr(struct ehea_adapter *adapter)
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goto out_herr;
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}
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adapter->num_ports = cb->num_ports;
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/* Determine the number of available logical ports
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* by counting the child nodes of the lhea OFDT entry
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*/
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adapter->num_ports = 0;
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lhea_dn = of_find_node_by_name(lhea_dn, "lhea");
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do {
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eth_dn = of_get_next_child(lhea_dn, eth_dn);
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if (eth_dn)
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adapter->num_ports++;
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} while ( eth_dn );
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of_node_put(lhea_dn);
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adapter->max_mc_mac = cb->max_mc_mac - 1;
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ret = 0;
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