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s390/qeth: don't poll for cmd IO completion

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All callers are running in process context now, so we can safely sleep
in qeth_send_control_data() while waiting for a cmd to complete.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julian Wiedmann
2019-03-28 16:39:24 +01:00
committed by David S. Miller
parent df2a2a5225
commit 782e4a7921
3 changed files with 35 additions and 41 deletions
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5
drivers/s390/net/qeth_l2_main.c
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@@ -1050,13 +1050,12 @@ static int qeth_osn_send_control_data(struct qeth_card *card, int len,
QETH_CARD_TEXT(card, 5, "osndctrd");
wait_event(card->wait_q,
atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
wait_event(card->wait_q, qeth_trylock_channel(channel));
qeth_prepare_control_data(card, len, iob);
QETH_CARD_TEXT(card, 6, "osnoirqp");
spin_lock_irq(get_ccwdev_lock(channel->ccwdev));
rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw,
(addr_t) iob, 0, 0, QETH_IPA_TIMEOUT);
(addr_t) iob, 0, 0, iob->timeout);
spin_unlock_irq(get_ccwdev_lock(channel->ccwdev));
if (rc) {
QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "