From 28a7e4c906bd86419eb8572b3b1343e619cd1470 Mon Sep 17 00:00:00 2001
From: Ursula Braun <ursula.braun@de.ibm.com>
Date: Fri, 19 Sep 2008 12:56:03 +0200
Subject: [PATCH] qeth: avoid qeth recovery problems
Do not touch IFF_UP flag during qeth recovery, but invoke dev_close()
in case of failing recovery.
Cancel outstanding control commands in case of Data Checks or
Channel Checks.
Do not invoke qeth_l2_del_all_mc() in case of a hard stop to speed up
removal of qeth devices.
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
drivers/s390/net/qeth_core_main.c | 4 +++-
drivers/s390/net/qeth_l2_main.c | 11 +++++++----
drivers/s390/net/qeth_l3_main.c | 8 +++++---
3 files changed, 15 insertions(+), 8 deletions(-)
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index c7ab1b864516..908f50b17e26 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -760,7 +760,7 @@ static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
if (sense[SENSE_COMMAND_REJECT_BYTE] &
SENSE_COMMAND_REJECT_FLAG) {
QETH_DBF_TEXT(TRACE, 2, "CMDREJi");
- return 0;
+ return 1;
}
if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
QETH_DBF_TEXT(TRACE, 2, "AFFE");
@@ -884,6 +884,7 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
}
rc = qeth_get_problem(cdev, irb);
if (rc) {
+ qeth_clear_ipacmd_list(card);
qeth_schedule_recovery(card);
goto out;
}
@@ -4147,6 +4148,7 @@ static void qeth_core_remove_device(struct ccwgroup_device *gdev)
unsigned long flags;
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+ QETH_DBF_TEXT(SETUP, 2, "removedv");
if (card->discipline.ccwgdriver) {
card->discipline.ccwgdriver->remove(gdev);
qeth_core_free_discipline(card);
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 573b5e564edd..955ba7a31b90 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -395,7 +395,8 @@ static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
}
if (card->state == CARD_STATE_SOFTSETUP) {
qeth_l2_process_vlans(card, 1);
- qeth_l2_del_all_mc(card);
+ if (!card->use_hard_stop)
+ qeth_l2_del_all_mc(card);
qeth_clear_ipacmd_list(card);
card->state = CARD_STATE_HARDSETUP;
}
@@ -826,7 +827,6 @@ static int qeth_l2_open(struct net_device *dev)
}
card->data.state = CH_STATE_UP;
card->state = CARD_STATE_UP;
- card->dev->flags |= IFF_UP;
netif_start_queue(dev);
if (!card->lan_online && netif_carrier_ok(dev))
@@ -841,7 +841,6 @@ static int qeth_l2_stop(struct net_device *dev)
QETH_DBF_TEXT(TRACE, 4, "qethstop");
netif_tx_disable(dev);
- card->dev->flags &= ~IFF_UP;
if (card->state == CARD_STATE_UP)
card->state = CARD_STATE_SOFTSETUP;
return 0;
@@ -1138,9 +1137,13 @@ static int qeth_l2_recover(void *ptr)
if (!rc)
PRINT_INFO("Device %s successfully recovered!\n",
CARD_BUS_ID(card));
- else
+ else {
+ rtnl_lock();
+ dev_close(card->dev);
+ rtnl_unlock();
PRINT_INFO("Device %s could not be recovered!\n",
CARD_BUS_ID(card));
+ }
return 0;
}
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index dd72c3c20165..99547dea44de 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -2795,7 +2795,6 @@ static int qeth_l3_open(struct net_device *dev)
return -ENODEV;
card->data.state = CH_STATE_UP;
card->state = CARD_STATE_UP;
- card->dev->flags |= IFF_UP;
netif_start_queue(dev);
if (!card->lan_online && netif_carrier_ok(dev))
@@ -2809,7 +2808,6 @@ static int qeth_l3_stop(struct net_device *dev)
QETH_DBF_TEXT(TRACE, 4, "qethstop");
netif_tx_disable(dev);
- card->dev->flags &= ~IFF_UP;
if (card->state == CARD_STATE_UP)
card->state = CARD_STATE_SOFTSETUP;
return 0;
@@ -3218,9 +3216,13 @@ static int qeth_l3_recover(void *ptr)
if (!rc)
PRINT_INFO("Device %s successfully recovered!\n",
CARD_BUS_ID(card));
- else
+ else {
+ rtnl_lock();
+ dev_close(card->dev);
+ rtnl_unlock();
PRINT_INFO("Device %s could not be recovered!\n",
CARD_BUS_ID(card));
+ }
return 0;
}
--
2.20.1