Imported linux-2.6.27.39 suse/xen patches.

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.39 / patches.arch / s390-11-03-qeth_recovery_drop_mac.patch

From: Gerald Schaefer <geraldsc@de.ibm.com>
Subject: qeth: unregister MAC addresses during recovery.
References: bnc#484767,LTC#52200

Symptom: After thousands of recovery cycles no more MAC addresses are
registered at z/VM GuestLAN adapter.
Problem: MAC address table of GuestLAN adapter full.
Solution: Unregister MAC addresses from device (layer 2) during
recovery cycle. When the device is set online the MAC
addresses are registered again on the device.

Acked-by: John Jolly <jjolly@suse.de>
---
Index: linux-sles11/drivers/s390/net/qeth_l2_main.c
===================================================================
--- linux-sles11.orig/drivers/s390/net/qeth_l2_main.c
+++ linux-sles11/drivers/s390/net/qeth_l2_main.c
@@ -388,7 +388,8 @@ static int qeth_l2_stop_card(struct qeth
 			dev_close(card->dev);
 			rtnl_unlock();
 		}
-		if (!card->use_hard_stop) {
+		if (!card->use_hard_stop ||
+		    recovery_mode) {
 			__u8 *mac = &card->dev->dev_addr[0];
 			rc = qeth_l2_send_delmac(card, mac);
 			QETH_DBF_TEXT_(SETUP, 2, "Lerr%d", rc);
@@ -397,7 +398,8 @@ static int qeth_l2_stop_card(struct qeth
 	}
 	if (card->state == CARD_STATE_SOFTSETUP) {
 		qeth_l2_process_vlans(card, 1);
-		if (!card->use_hard_stop)
+		if (!card->use_hard_stop ||
+		    recovery_mode)
 			qeth_l2_del_all_mc(card);
 		qeth_clear_ipacmd_list(card);
 		card->state = CARD_STATE_HARDSETUP;